阅读说明：本技术 一种指示方法、接收处理方法、装置、终端和存储介质 (Indication method, receiving processing method, device, terminal and storage medium ) 是由 贺海港 卢有雄 杨瑾 邢卫民 于 2019-09-30 设计创作，主要内容包括：本申请提出一种指示方法、接收处理方法、装置、终端和存储介质。该方法包括：通过第一信道根据以下指示方式之一进行指示：第一信道的类型；第一信道中承载的信息的类型；第二信道的类型；第一信道和第二信道的类型；第一信道中承载的信息中特定比特是否用于第二信道的资源分配；其中,在设定时间区间内,第一信道和第二信道的频域资源存在重叠。(The application provides an indication method, a receiving processing device, a terminal and a storage medium. The method comprises the following steps: indicating through the first channel according to one of the following indication modes: a type of the first channel; a type of information carried in the first channel; a type of the second channel; a type of the first channel and the second channel; whether a specific bit in information carried in the first channel is used for resource allocation of the second channel; and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.)

1. An indication method, comprising:

indicating through the first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

2. The method of claim 1, wherein the frequency domain bandwidth of the first channel is fixed and the frequency domain bandwidth of the second channel is fixed.

3. The method of claim 1, wherein the first channel is a physical edge link control channel.

4. The method of claim 1, wherein the first channel is used to carry side link control information.

5. The method of claim 1, wherein the second channel carries perceptual information.

6. The method of claim 1, wherein the second channel is a physical sidelink shared channel.

7. The method of claim 1, wherein the second channel is a physical sidelink control channel.

8. The method according to claim 6 or 7, wherein the second channel carries side link control information.

9. The method of claim 1, wherein the indication comprises at least one of:

indicating a scrambling mode of a cyclic redundancy check bit carried by a first channel based on a sequence generated by the wireless network temporary identifier;

indicating a scrambling mode of the payload carried by the first channel based on a sequence generated by the wireless network temporary identifier;

a bit indication of a specific location in the sidelink control information carried over the first channel.

10. The method of claim 1, wherein indicating the type of the first channel comprises:

indicating whether the first channel is for a second channel indicating a fixed frequency domain bandwidth.

11. The method of claim 1, wherein indicating the type of the first channel comprises:

indicating whether a first channel is used for a second channel indicating the same frequency domain resources as the first channel.

12. The method of claim 1, wherein indicating the type of information carried in the first channel comprises:

indicating whether the information carried in the first channel is for a second channel indicating a fixed frequency domain bandwidth.

13. The method of claim 1, wherein indicating the type of information carried in the first channel comprises:

indicating whether information carried in a first channel is used to indicate a second channel having the same frequency domain resources as the first channel.

14. The method of claim 13, wherein the frequency domain resources of the second channel comprise at least one of:

the frequency domain resources of the second channel are the same as the frequency domain resources of the first channel;

and the frequency domain resource of the second channel is a sub-channel where the first channel is located.

15. The method of claim 1, wherein indicating the type of the second channel comprises:

indicating whether the second channel is used to carry perceptual information.

16. The method of claim 1, wherein indicating the type of the second channel comprises:

indicating whether the second channel is used for carrying resource reservation information.

17. The method of claim 1, wherein indicating the type of the second channel comprises:

indicating whether the second channel carries an empty packet.

18. The method of claim 17, wherein padding bits are generated by a media access control layer and sent to a physical layer in case the second channel carries a null packet;

and performing modulation coding processing on the filling bits through the physical layer to obtain a modulation symbol, and mapping the modulation symbol on the second channel.

19. The method of claim 17, wherein padding bits are generated by a physical layer, and the padding bits are modulated or modulation-coded to obtain modulation symbols, and the modulation symbols are mapped on the second channel when the second channel is used for carrying null packets.

20. The method of claim 1, wherein indicating the type of the second channel comprises:

indicating a format of the sidelink control information carried in the second channel.

21. The method of claim 1, wherein indicating the type of the second channel comprises:

indicating the use of reserved bit information carried by the second channel.

22. The method of claim 21, wherein the indicating the use of the reserved bit information carried by the second channel comprises:

indicating the version protocol of the second channel or, alternatively, indicating the protocol version of the information carried in the second channel.

23. The method of claim 1, wherein indicating the type of the second channel comprises:

and indicating the type of the second channel through the new data indication information and the redundancy version indication information carried in the first channel.

24. The method of claim 1, wherein the information bits carried in the second channel are truncations or repetitions of information bits in the first channel.

25. The method of claim 1, wherein the information bits carried in the second channel are time-domain repetitions of modulation symbols on time-frequency resources in the first channel.

26. The method of claim 1, wherein the information bits carried in the second channel comprise side link control information and padding bits.

27. The method of claim 1, further comprising:

indicating that the first channel and/or second channel is located in a first sub-channel of a target resource;

wherein the target resource comprises at least one subchannel.

28. The method of claim 27, wherein the indicating that the first channel and/or the second channel is located in a first sub-channel of a target resource comprises:

indicating a resource set to a media access control layer through a physical layer;

selecting a target resource in the resource set through the media access control layer, and indicating that the first channel and/or the second channel are/is located in a first sub-channel of the target resource.

29. The method of claim 27, wherein the indicating that the first channel and/or the second channel is located in a first sub-channel of a target resource comprises:

the resource allocation of the target resource is indicated by the side link control information, indicating that the first channel and/or the second channel is located in a first sub-channel of the target resource.

30. The method of claim 27, wherein the indicating that the first channel and/or the second channel is located in a first sub-channel of a target resource comprises:

indicating at least two continuous sub-channels, and punching the rest sub-channels except the first sub-channel;

or indicating at least two continuous sub-channels, and performing punching processing on the remaining time frequency resources except the time frequency resource corresponding to the first channel in the time frequency resources corresponding to the at least two continuous sub-channels in the set time interval.

31. The method of claim 27, wherein the indicating that the first channel and/or the second channel is located in a first sub-channel of a target resource comprises:

indicating at least one sub-channel, and performing rate matching on the first sub-channel;

alternatively, at least one subchannel is indicated and rate matching is performed on the frequency domain resources of the first channel.

32. A receive processing method, comprising:

receiving a first channel, and obtaining indication information of the first channel about the first channel and/or a second channel;

receiving the second channel based on the indication information;

and within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

33. The method of claim 32, wherein the obtaining the indication information of the first channel about the first channel and/or the second channel comprises:

obtaining indication information of the first channel about the first channel and/or the second channel by at least one of the following methods:

descrambling the cyclic redundancy check bits carried by the first channel based on the sequence generated by the wireless network temporary identifier;

descrambling the effective load carried by the first channel based on the sequence generated by the wireless network temporary identifier;

bits at specific positions in the side link control information carried by the first channel are obtained.

34. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

and in the case that the indication information is a second channel bearing null packet, abandoning the execution of the receiving operation on the second channel.

35. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

receiving a second channel according to a frequency domain resource indicated by a frequency domain resource allocation bit in the side link control information under the condition that the indication information contains the side link control information scheduled by a first channel;

receiving a second channel according to the same frequency domain resource as the first channel under the condition that the indication information does not contain side link control information scheduled by the first channel;

and receiving a second channel according to the sub-channel where the first channel is located under the condition that the indication information does not contain the side link control information scheduled by the first channel.

36. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

under the condition that the indication information indicates that the second channel is a channel with fixed frequency domain bandwidth, receiving the second channel according to the sub-channel where the first channel is located;

and under the condition that the indication information indicates that the second channel is not the channel with the fixed frequency domain bandwidth, receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel.

37. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

receiving the second channel according to the same frequency domain resources as the first channel under the condition that the indication information indicates that the second channel is a channel with fixed frequency domain bandwidth;

and under the condition that the indication information indicates that the second channel is not the channel with the fixed frequency domain bandwidth, receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel.

38. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

under the condition that the indication information indicates that the frequency domain resource indication bit carried by the first channel is not used for indicating a second channel with fixed frequency domain bandwidth, receiving the second channel according to the same frequency domain resource as the first channel;

and receiving the second channel according to the frequency domain resources indicated by the frequency domain resource indication bits carried by the first channel under the condition that the indication information indicates that the frequency domain resource indication bits carried by the first channel are used for indicating the second channel with the fixed frequency domain bandwidth.

39. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

receiving a second channel according to the same frequency domain resources as the first channel under the condition that the indication information indicates that the frequency domain resources of the first channel and the second channel are the same;

and receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel under the condition that the indication information indicates that the frequency domain resources of the first channel and the second channel are different.

40. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

receiving a second channel according to the same frequency domain resource as the first channel under the condition that the indication information indicates that the first channel and the second channel are the same sub-channel;

and receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel under the condition that the indication information indicates that the first channel and the second channel are not the same sub-channel.

41. The method of claim 32, wherein the receiving the second channel based on the indication information comprises:

determining frequency domain resources for receiving a second channel based on the type of the second channel and resource allocation bits carried in a first channel;

receiving the second channel based on the frequency domain resources.

42. The method of claim 41, wherein the determining the frequency domain resources for receiving the second channel based on the type of the second channel and the resource allocation bits carried in the first channel comprises:

in the case that the type of the second channel is a channel with fixed frequency domain bandwidth, determining that a first subchannel of at least one subchannel indicated by resource allocation bits carried in the first channel is used for receiving the second channel;

in the case that the type of the second channel is not a channel of a fixed frequency domain bandwidth, determining at least one sub-channel indicated by resource allocation bits carried in the first channel for receiving the second channel.

43. The method of claim 41, wherein the determining the frequency domain resources for receiving the second channel based on the type of the second channel and the resource allocation bits carried in the first channel comprises:

determining a sub-channel where the first channel is located or determining that the same frequency domain resource of the first channel is used for receiving the second channel when the type of the second channel is a channel with a fixed frequency domain bandwidth;

in the case where the type of the second channel is not a channel of a fixed frequency domain bandwidth, at least one subchannel indicated by resource allocation bits carried in the first channel is determined for receiving the second channel.

44. The method according to claim 32, wherein in a case that the indication information includes new data indication information and redundancy version indication information, said receiving the second channel based on the indication information comprises:

under the condition that the new data indication information indicates that the current transmission is the initial transmission and the redundancy version indication information is 0, receiving a second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried in the first channel;

and under the condition that the new data indication information indicates that the current transmission is the initial transmission and the redundancy version indication information is not 0, receiving a second channel according to one of the following conditions:

the same frequency domain resources as the first channel;

the sub-channel where the first channel is located.

45. The method of claim 32, further comprising, after receiving the second channel based on the indication information:

acquiring sensing information carried by the second channel, and performing resource selection based on the sensing information, wherein the sensing information comprises at least one of the following information:

information obtained by receiving side link control information of other terminals;

reference signal received power measurements.

46. The method of claim 45, after obtaining the reference signal received power measurement carried by the second channel, further comprising:

under the condition that the received first channel and the second channel are positioned in the same sub-channel, taking the reference signal received power measurement result of the second channel as the reference signal received power measurement result of any sub-channel in the target resource reserved by the first channel;

wherein the target resource reserved by the first channel comprises at least one sub-channel.

47. An indicating device, comprising:

an indication module, configured to indicate through a first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

48. A reception processing apparatus, comprising:

the device comprises an indication information acquisition module, a first channel acquisition module and a second channel acquisition module, wherein the indication information acquisition module is used for receiving a first channel and acquiring indication information of the first channel about the first channel and/or a second channel;

a receiving module, configured to receive the second channel based on the indication information;

and within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

49. A terminal, characterized in that the terminal comprises: a memory, and one or more processors;

the memory arranged to store one or more programs;

when executed by the one or more processors, cause the one or more processors to implement the method of any of claims 1-46.

50. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method of any one of claims 1-46.

Technical Field

The present application relates to wireless communication networks, and in particular, to an indication method, a reception processing method, an apparatus, a terminal, and a storage medium.

Background

In V2X (Vehicle to event, abbreviated as V2X) communication, a resource reservation mechanism is often adopted to avoid resource collision of different terminals. For the resource reservation mechanism, the terminal needs to indicate the resource allocation of the current psch (physical Sidelink shared Channel) and further indicate which following resources are reserved by the terminal in the SCI (Sidelink Control Information). And other terminals obtain the resource allocation of the current PSSCH of the terminal and obtain the reserved resource of the terminal through the receiving of the SCI. However, the PSSCH may or may not be a PSSCH with a fixed frequency-domain bandwidth. For other terminals, it is not possible to determine which type of psch the psch is to be received, and thus, the frequency domain bandwidth and the frequency domain position for receiving the psch cannot be determined, which may result in a reception error.

Disclosure of Invention

The embodiment of the application provides an indication method, a receiving processing device, a terminal and a storage medium.

The embodiment of the application provides an indication method, which comprises the following steps:

indicating through the first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

An embodiment of the present application further provides a receiving processing method, including:

receiving a first channel, and obtaining indication information of the first channel about the first channel and/or a second channel;

receiving the second channel based on the indication information;

and within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

The embodiment of the application provides an indicating device, and the device includes:

the indication module is used for indicating through the first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

An embodiment of the present application provides a reception processing apparatus, including:

the device comprises an indication information acquisition module, a first channel acquisition module and a second channel acquisition module, wherein the indication information acquisition module is used for receiving a first channel and acquiring indication information of the first channel about the first channel and/or a second channel;

a receiving module, configured to receive the second channel based on the indication information;

and within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

An embodiment of the present application provides a terminal, including: a memory, and one or more processors;

the memory arranged to store one or more programs;

when executed by the one or more processors, cause the one or more processors to implement any one of the methods in the embodiments of the present application.

The embodiment of the application provides a storage medium, wherein a computer program is stored in the storage medium, and when being executed by a processor, the computer program realizes any one method in the embodiment of the application.

With regard to the above embodiments and other aspects of the present application and implementations thereof, further description is provided in the accompanying drawings description, detailed description and claims.

Drawings

Fig. 1 is a schematic transmission diagram according to an embodiment of the present application;

fig. 2 is a schematic transmission diagram according to an embodiment of the present application;

FIG. 3 is a new structure diagram provided by an embodiment of the present application;

fig. 4 is a flowchart of a method for indicating resource reservation and resource allocation according to an embodiment of the present application;

fig. 5 is a schematic transmission diagram according to an embodiment of the present application;

fig. 6 is a schematic transmission diagram according to an embodiment of the present application;

fig. 7 is a schematic transmission diagram according to an embodiment of the present application;

fig. 8 is a schematic transmission diagram provided in an embodiment of the present application;

fig. 9 is a schematic transmission diagram provided in an embodiment of the present application;

FIG. 10 is an enlarged view of a portion of the frequency domain resources for one of the time slots in FIG. 9;

fig. 11 is a schematic diagram of a resource structure in a timeslot according to an embodiment of the present application;

fig. 12 is a schematic transmission diagram provided in an embodiment of the present application;

fig. 13 is a schematic transmission diagram according to an embodiment of the present application;

fig. 14 is a flowchart of a method of a receiving processing method according to an embodiment of the present application;

fig. 15 is a block diagram of a receiving processing device according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

In order to facilitate understanding of the technical solution of the present application, the following description is made: in a side link (Sidelink) communication system, when there is a service to be transmitted between user equipments (UEs, which may also be referred to as terminals), the service between the UEs is directly transmitted to a target UE through the Sidelink by a data source UE without passing through a network side, that is, without passing through a cellular link between the UEs and a base station. Typical applications of edge link (sildelink) communication include Device-to-Device (D2D, Device-to-Device) communication and Vehicle networking (V2X) communication. The Vehicle networking (V2X) communication includes Vehicle-to-Vehicle (V2V for short), Vehicle-to-person (V2P for short), and Vehicle-to-road (V2I for short). For a short-distance communication user capable of applying the Sidelink communication, the Sidelink communication not only saves wireless spectrum resources, but also reduces the data transmission pressure of a core network, can reduce the occupation of system resources, increases the spectrum efficiency of a cellular communication system, reduces the communication delay and saves the network operation cost to a great extent.

In V2X communication, the terminal indicates the resource allocation of the current PSSCH by one SCI, and also indicates which of the following resources are reserved by the terminal. And other terminals obtain the current PSSCH resource allocation condition and the resource reservation condition of the terminal through the receiving of the SCI. Fig. 1 and 2 are schematic transmission diagrams provided in the embodiments of the present application. As shown in the initial transmission of fig. 1 and 2, for the initial transmission, the PSCCH may be a PSCCH (Physical Sidelink shared channel) that schedules a single subchannel PSCCH or a PSCCH that schedules a variable number of subchannels pschs.

In V2X communication, there are two resource selection methods. One way is through scheduling by a central node (e.g., base station), which decides the resources the device uses for transmission and signals to the terminal. Another method is a resource selection method based on contention, in which a device autonomously selects resources for transmitting signaling/data in a resource pool by monitoring the use condition of resources within the resource pool and monitoring the result.

In the resource selection method based on competition in the embodiment of the application, the terminal executes two processes of resource sensing (sending) and resource selection. In the sensing process, the terminal obtains reserved resource information and Reference Signal Receiving Power (RSRP) information of other terminals through Receiving SCI information. In the resource selection phase, the terminal excludes some high-interference resources based on the sensing result in the sensing operation, for example, excluding the resources which are reserved by other terminals and have RSRP higher than a preset threshold value within the resource selection window. After performing the resource exclusion operation, the terminal further selects resources from the remaining resources for the transmission of V2X data and signaling. In the resource selection process, the terminal selects and excludes resources by taking L continuous sub-channels as a resource unit. And the terminal transmits data and signaling through L continuous sub-channels, wherein L is an integer greater than 0. In addition, each subchannel is composed of a plurality of consecutive RBs (Resource blocks). Fig. 3 is a new structure diagram provided in an embodiment of the present application. As shown in fig. 3, each subchannel includes a plurality of consecutive resource blocks. As can be seen from the above description, in the resource sensing and resource selecting process, the resource reservation condition of other terminals needs to be obtained. The indication is made by the SCI regarding resource allocation and resource reservation. Fig. 4 is a flowchart of a method for indicating resource reservation and resource allocation according to an embodiment of the present application. As shown in fig. 4, the method for indicating resource reservation and resource allocation includes: step S410, obtaining the number of subchannels of the scheduled psch and the reserved psch. And step S420, determining the frequency domain resource and the time domain resource of the scheduled PSSCH and the reserved PSSCH according to the number of the sub-channels. Step S430 indicates the frequency domain resources and time domain resources of the scheduled pschs and the reserved pschs.

The embodiments of the application provide an indication method to avoid the problem that the receiving terminal cannot determine the frequency domain bandwidth and frequency domain position for receiving the psch.

The embodiment of the present application provides an indication method, which may be performed by an indication apparatus, which may be implemented by software and/or hardware, and is generally integrated in a terminal. The indication method comprises the following steps: indicating through the first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

The present embodiment provides an indication method, where an indication operation is performed through a first channel according to a combination of one or more items of a type of the first channel, a type of information carried in the first channel, a type of a second channel, types of the first channel and the second channel, and whether a specific bit in information carried in the first channel is used in resource allocation of the second channel, so that indication information about the first channel and/or the second channel is carried in the first channel, and thus, after other terminals receive the first channel, frequency domain resources used for receiving the second channel can be determined through the indication information, thereby improving reception accuracy.

The set time interval includes one time slot or a plurality of time slots. It should be noted that, in the set time interval, the frequency domain resources of the first channel and the second channel overlap, that is, the frequency domain resources of all types of second channels and the first channel overlap in the set time interval, but for at least one type of second channel among the one or more types of second channels, the frequency domain resources of the first channel overlap in the set time interval. The frequency domain resources include frequency domain bandwidth, frequency domain position, and the like.

Optionally, the frequency domain bandwidth of the first channel is fixed, and the frequency domain bandwidth of the second channel is fixed, that is, the frequency domain size of the first channel is fixed, and the frequency domain size of the second channel is also fixed. It should be noted that the frequency domain resource size of the first channel is fixed, which means that the terminal can know the frequency domain size of the first physical channel before receiving the first channel without any indication of a physical channel or a physical signal.

Similarly, the frequency domain resource size of the second channel is fixed, which also means that the terminal can know the frequency domain size of the second physical channel before receiving the second physical channel without any indication of the physical channel or physical signal. It should be noted that, here, the second channel is fixed, which means that the frequency domain size of the second channel is not indicated by physical layer signaling, but the frequency domain Resource size of the second channel may be configured by RRC (Radio Resource Control) signaling. Although the frequency domain resource size of the second channel can be configured through RRC signaling, it can still be guaranteed that the frequency domain resource size of the second channel is constant for a period of time (e.g., within 100 ms), and thus the second channel can still be classified as a fixed frequency domain resource size.

Optionally, the first channel is a physical edge link control channel.

Optionally, the first channel is used for carrying side link control information.

Optionally, the second channel is a physical edge link shared channel.

Optionally, the second channel is a physical edge link control channel.

Optionally, the second channel carries side link control information. For example, when the second channel is PSCCH, it carries SCI. In addition, when the second channel is the psch, the psch may also carry the SCI.

It should be noted that the specific bits include: the frequency domain resource allocation bit in the side link control information, the reserved frequency domain resource indication bit in the side link control information, or the frequency domain resource allocation bit and the reserved frequency domain resource indication bit in the side link control information.

It should be noted that the preset indication manner includes at least one of the following:

the method comprises the steps that firstly, based on a sequence generated by Radio Network Temporary Identifier (RNTI), scrambling mode indication is carried out on Cyclic Redundancy Check (CRC) bits carried by a first channel;

a second mode is that based on the sequence generated by the wireless network temporary identifier, the mode indication of scrambling is carried out on the effective load carried by the first channel; wherein, the payload may include only SCI, or SCI and CRC;

and the third mode is that the bit of the specific position in the side link control information carried by the first channel indicates.

Optionally, the information bits carried in the second channel are truncated or repeated for the information bits in the first channel.

For example, assuming that the first channel has 20 bits, the 20 bits are modulated and encoded to obtain modulation symbols, and then the modulation symbols are mapped onto the first channel. The second channel copies 20 bits before modulation and decoding, and the second channel encodes and modulates the bits to obtain a modulation symbol, and then maps the modulation symbol to the second channel to obtain information carried in the second channel.

Optionally, the information bits carried in the second channel are time domain repetitions of modulation symbols on the time-frequency resources in the first channel. For example, assuming that the first channel has 20 bits, the 20 bits are modulated and encoded to obtain modulation symbols, and then the modulation symbols are mapped onto the first channel. The information carried in the second channel is obtained by time-domain repetition of the modulation symbols.

In this embodiment of the present application, optionally, the indicating the type of the first channel through the first channel may be: indicating whether the first channel is for a second channel indicating a fixed frequency domain bandwidth. Alternatively, the indication of the type of the first channel by the first channel may be: indicating whether the first channel is used for a second channel indicating the same frequency domain resources as the first channel.

For example, the indication of the type of information carried in the first channel through the first channel may be: indicating whether the information carried in the first channel is for a second channel indicating a fixed frequency domain bandwidth. Alternatively, the indication of the type of information carried in the first channel through the first channel may be: indicating whether information carried in a first channel is used to indicate a second channel having the same frequency domain resources as the first channel.

It should be noted that the frequency domain resources of the second channel include: the frequency domain resource of the second channel is the same as the frequency domain resource of the first channel, and/or the frequency domain resource of the second channel is a sub-channel where the first channel is located.

In an exemplary embodiment, the first terminal indicates whether a particular bit in the SCI carried in the first channel is used for frequency domain resource allocation of the psch. Optionally, the first terminal indicates whether a frequency domain resource allocation bit (or a reserved frequency domain resource indication bit) in the SCI is used for frequency domain resource allocation of the psch.

For example, assume that the first terminal arrives at an aperiodic service packet, which is split into one or more TBs (Transport blocks). It is assumed that the aperiodic service packet corresponds to one TB. For the transmission of the TB, it is assumed that the physical layer transmits three times in total, where the first transmission corresponds to the initial transmission (which may be referred to as initial transmission) of the TB, and the remaining two transmissions are retransmissions of the TB. For the transmission of the TB, the first terminal includes 40 bits of information through a specific bit in the SCI information, for example, SCI, wherein the 6 th to 10 th bits are used for indicating the frequency domain resource of the PSSCH scheduled by the current SCI. In addition, the 6 th to 10 th bits of information can also be used for indicating reserved PSSCH frequency domain resources.

Fig. 5 is a schematic transmission diagram according to an embodiment of the present application. As shown in fig. 5, for three transmissions of the same TB, the first transmission uses a fixed frequency domain bandwidth, which is one subchannel. For the first transmission of the TB, the method is mainly used to indicate the reserved frequency domain resources for the second transmission, so as to avoid other terminals selecting the resources reserved by the terminal and having RSRP (Reference Signal Received Power) higher than the threshold.

For the initial transmission of the TB described in fig. 5, the PSCCH and PSCCH channels are included within a single sub-channel, and the SCI is carried over the PSCCH channel. For a specific bit in the SCI for indicating the frequency domain resource allocation and also for a frequency domain resource reservation bit, the first terminal indicates whether the resource allocation bit in the SCI is used for indicating the resource allocation of the current psch. For the initial transmission of the TB as described in fig. 5, the first terminal indicates whether a specific bit in the current SCI is used for frequency domain resource allocation of the current psch by one of the following ways.

For example, based on the sequence generated by the RNTI, the CRC bits carried by the first channel are scrambled, and the specific details indicating whether the specific bits in the SCI are used for the second channel frequency domain resource allocation are as follows: the sequence generated by the first RNTI number is used to scramble the CRC bits carried by the first channel, which means that specific bits in the SCI are not used for the second channel frequency domain resource allocation. The CRC bits carried by the first channel are scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value numbered 200, indicating that particular bits in the SCI are used for the second channel frequency domain resource allocation.

Or, based on the sequence generated by the RNTI, the payload carried by the first channel is scrambled, and the specific details indicating whether the specific bit in the SCI is used for the second channel frequency domain resource allocation are as follows: the scrambling operation is performed on the payload carried by the first channel by using the sequence generated by the first RNTI number, which indicates that specific bits in the SCI are not used for the second channel frequency domain resource allocation. The payload carried by the first channel is scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value numbered 200, indicating that a particular bit in the SCI is used for the second channel frequency domain resource allocation.

Or, the specific details indicating whether the specific bit in the SCI is used for the second channel frequency domain resource allocation through the bit at the specific position in the side link control information carried by the first channel are as follows: setting a value of one bit of a specific position in the SCI carried in the first channel to 0, which indicates that the specific bit in the SCI is not used for the second channel frequency domain resource allocation. Otherwise, setting the value of one bit of the specific position to be 1, indicating that the specific bit in the SCI is used for the second channel frequency domain resource allocation.

For the second and third transmissions of the TB, PSCCH and pscsch are transmitted in consecutive L sub-channel regions, L being an integer greater than zero. Wherein the PSCCH channel is located within a first of the L sub-channels. The specific bits in the SCI are indicated for the second channel frequency domain resource allocation in the same manner as described above, and are not described herein again.

The first terminal carries out information indication through the PSCCH channel according to the mode, and sends SCI and data information through the PSCCH and the PSSCH respectively. The second terminal obtains the resource allocation bits in the current SCI and indication information on whether the resource allocation bits are used for frequency domain resource allocation of the current PSCCH through detection of the PSCCH. If the frequency domain resource allocation of the current PSSCH is not used for the frequency domain resource allocation of the current PSSCH, the receiving behavior of the second terminal on the current PSSCH is as follows: and the second terminal receives the current PSSCH according to the fixed frequency domain bandwidth, wherein the fixed frequency domain bandwidth is a sub-channel, and the sub-channel is a sub-channel corresponding to the PSCCH where the current SCI is located. If the frequency domain resource allocation of the current PSSCH is used for the frequency domain resource allocation of the current PSSCH, the receiving behavior of the second terminal on the current PSSCH is as follows: and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of the resource indication bit (6-10 bits) in the current SCI. And receiving the current PSSCH based on the starting position of the current PSSCH resource and the number of sub-channels. A more detailed process is described below.

For the initial transmission of the first terminal in fig. 5, the second terminal obtains, through the detection of the PSCCH, that the bit used for indicating whether the frequency domain resource indication bit in the current SCI is valid is 0, where 0 represents that the frequency domain resource indication bit is invalid, so that the second terminal determines that the bit used for indicating the frequency domain resource in the SCI is invalid. And judging that the frequency domain resource indication bit in the SCI is not used for second channel frequency domain resource allocation, wherein the receiving action of the second terminal on the current PSSCH is as follows: and the second terminal receives the current PSSCH according to the frequency domain bandwidth of one sub-channel, wherein the sub-channel is a sub-channel corresponding to the PSCCH where the current SCI is located.

For the second transmission of the first terminal in fig. 5, the second terminal obtains, through the detection of the PSCCH, that the bit used for indicating whether the frequency domain resource is valid in the current SCI is 1, where 1 indicates that the frequency domain resource indication bit is valid, and therefore the second terminal determines that the bit used for indicating the frequency domain resource in the SCI is valid. And judging that the frequency domain resource indication bit in the SCI is used for second channel frequency domain resource allocation, wherein the receiving action of the second terminal on the current PSSCH is as follows: and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of the resource indication bit (6-10 bits) in the current SCI. And receiving the current PSSCH based on the starting position of the current PSSCH resource and the number of sub-channels.

For the third transmission of the first terminal in fig. 5, the second terminal obtains, through the detection of the PSCCH, that the bit used for indicating whether the frequency domain resource is valid in the current SCI is 1, where 1 indicates that the frequency domain resource indication bit is valid, and therefore the second terminal determines that the bit used for indicating the frequency domain resource indication in the SCI is valid. And judging that the frequency domain resource indication bit in the SCI is used for second channel frequency domain resource allocation, wherein the receiving action of the second terminal on the current PSSCH is as follows: and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of the resource indication bit (6-10 bits) in the current SCI. And receiving the current PSSCH based on the starting position of the current PSSCH resource and the number of sub-channels.

In this embodiment, the indication information about the second channel is carried in the first channel by indicating whether the specific bit in the SCI carried in the first channel is used for frequency domain resource allocation of the second channel, so that after other terminals receive the first channel, the frequency domain resource used for receiving the second channel can be determined by the indication information, and the receiving accuracy is improved.

In one exemplary embodiment, the first terminal indicates the type of PSCCH. Further, the first terminal indicates whether the PSCCH is used for a PSCCH indicating a fixed frequency domain bandwidth. If the PSCCH is not a PSCCH used to schedule a fixed frequency domain bandwidth, the frequency domain resources of the PSCCH channel are indicated by resource allocation bits in the SCI. Wherein the SCI information is carried over the PSCCH channel.

For example, the first terminal arrives at an aperiodic service packet, which is split into one or more TBs. It is assumed that the aperiodic service packet corresponds to one TB. For the transmission of this TB, it is assumed that the physical layer is transmitted three times in total. Fig. 6 is a schematic transmission diagram according to an embodiment of the present application. As shown in fig. 6, for three transmissions of the same TB, the first transmission uses a fixed frequency domain bandwidth, which is one subchannel.

For the initial transmission of the TB described in fig. 6, the first terminal indicates whether the PSCCH is used for a PSCCH indicating a fixed frequency domain bandwidth. For the initial transmission of the TB described in fig. 6, the first terminal indicates whether the PSCCH is used for a PSCCH indicating a fixed frequency domain bandwidth by one of the following means.

For example, based on the sequence generated by the RNTI, the CRC bits carried by the first channel are scrambled, and the specific details indicating whether the PSCCH is used for the PSCCH indicating the fixed frequency domain bandwidth are as follows: the CRC bits carried by the first channel are scrambled using the sequence generated by the first RNTI number, indicating that the PSCCH is used to indicate a PSCCH of fixed frequency domain bandwidth. The CRC bits carried by the first channel are scrambled using a sequence generated by a second RNTI number, e.g. an RNTI value of 200, indicating that the PSCCH is used to indicate a PSCCH that is not a fixed frequency domain bandwidth.

Or, based on the sequence generated by the RNTI, scrambling the payload carried by the first channel, and the specific details indicating whether the PSCCH is used for indicating the PSCCH with the fixed frequency domain bandwidth are as follows: the payload carried by the first channel is scrambled using the sequence generated by the first RNTI number, indicating that the PSCCH is used to indicate a psch of fixed frequency domain bandwidth. The payload carried by the first channel is scrambled using a sequence generated by a second RNTI number, e.g. an RNTI value of 200, indicating that the PSCCH is used to indicate a PSCCH that is not a fixed frequency domain bandwidth.

Or, the specific details indicating whether the PSCCH is used for the PSCCH indicating the fixed frequency domain bandwidth through a bit at a specific position in the side link control information carried by the first channel are as follows: setting a value of one bit of a specific location in the SCI carried in the first channel to 0 indicates that the PSCCH is used to indicate a PSCCH of a fixed frequency domain bandwidth. Otherwise, a bit of the specific position is set to have a value of 1, indicating that the PSCCH is used to indicate a PSCCH that is not a fixed frequency domain bandwidth.

For the second and third transmissions of the TB, the PSCCH and pscsch are transmitted over consecutive L sub-channel regions, L being an integer greater than zero. Wherein the PSCCH channel is located within a first of the L sub-channels. Whether the PSCCH is used for indicating the PSCCH of the fixed frequency domain bandwidth is indicated in the same manner as described above, which is not described herein again.

And the first terminal carries the indication information through the PSCCH and respectively sends SCI and data information through the PSCCH and the PSSCH according to the mode. And the second terminal obtains the indication information through the detection of the PSCCH. If the indication information indicates that the PSSCH is a channel with a fixed frequency domain bandwidth, the receiving action of the second terminal on the current PSSCH is as follows: and the second terminal receives the current PSSCH according to the frequency domain bandwidth of one sub-channel, wherein the sub-channel is a sub-channel corresponding to the PSCCH where the current SCI is located.

If the indication information indicates that the PSSCH is not a channel with a fixed frequency domain bandwidth, the receiving action of the second terminal on the current PSSCH is as follows: and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of frequency domain resource indication bits (6-10 bits) in the current SCI. Receiving the PSSCH based on the starting position of the current PSSCH resource and the number of subchannels. A more detailed process is described below.

For the initial transmission of the first terminal, the second terminal obtains, through detection of the PSCCH, that the bit at the specific position in the current SCI is 0, where 0 indicates that the PSCCH is a PSCCH indicating a fixed frequency domain bandwidth, and then the receiving behavior of the second terminal on the current PSCCH is as follows: and the second terminal receives the current PSSCH according to the frequency domain bandwidth of one sub-channel, wherein the sub-channel is a sub-channel corresponding to the PSCCH where the current SCI is located.

For the second transmission of the first terminal, the second terminal obtains a bit 1 at a specific position in the current SCI through detection of the PSCCH, where 1 indicates that the PSCCH is not a PSCCH indicating a fixed frequency domain bandwidth. The receiving behavior of the second terminal on the current PSSCH is yes; and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of the resource indication bit (6-10 bits) in the current SCI. And receiving the current PSSCH based on the starting position of the current PSSCH resource and the number of sub-channels.

Similarly, for the third transmission of the first terminal, the second terminal obtains the bit of the specific position in the current SCI as 1 through the detection of the PSCCH, and 1 indicates that the PSCCH is not the PSCCH for indicating the fixed frequency domain bandwidth. The receiving behavior of the second terminal on the current PSSCH is yes; and the second terminal determines the initial position and the number of sub-channels of the current PSSCH resource according to the indication of the resource indication bit (6-10 bits) in the current SCI. And receiving the current PSSCH based on the starting position of the current PSSCH resource and the number of sub-channels.

In this embodiment, whether the first channel is used for indicating the second channel with the fixed frequency domain bandwidth is indicated, so that the first channel carries the indication information about the second channel, and after other terminals receive the first channel, the frequency domain resources for receiving the second channel can be determined through the indication information, thereby improving the receiving accuracy.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes:

indicating whether the second channel is used to carry perceptual information.

Wherein the sensing information includes information obtained by receiving side link control information of other terminals and/or a reference signal received power measurement result.

It should be noted that, in the resource selection stage, the terminal may exclude some high-interference resources based on the sensing information, and the specific implementation manner is as described above, and is not described herein again.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes:

indicating whether the second channel is used for carrying resource reservation information.

It should be noted that the resource reservation information may be information bits indicating which resources are reserved by the current terminal.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes:

indicating whether the second channel carries an empty packet.

In one exemplary embodiment, the first terminal indicates the type of PSSCH. Further, the first terminal indicates whether the psch carries a null packet (or a data packet referred to as null). Wherein the SCI information is carried over the PSCCH.

For example, the first terminal has reached an aperiodic service packet, which is split into TBs. For the transmission of this TB, the physical layer is transmitted twice in total. Fig. 7 is a schematic transmission diagram according to an embodiment of the present application. As shown in fig. 7, the first transmission corresponds to an initial transmission of a TB and the second transmission is a retransmission of the TB. The first terminal transmits the PSCCH and PSCCH in a fixed frequency bandwidth prior to the first transmission, the PSCCH in the fixed frequency bandwidth being used to carry null packets.

The first terminal indicates whether the current psch carries a null packet by one of the following means.

For example, based on the sequence generated by the RNTI, the CRC bits carried by the first channel are scrambled, and the specific details indicating whether the pscch carries a null packet are as follows: the CRC bits carried by the first channel are scrambled using the sequence generated by the first RNTI number, indicating that the psch carries a null packet. The CRC bits carried by the first channel are scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value of 200, indicating that the psch does not carry a null packet.

Or, based on the sequence generated by the RNTI, scrambling the payload carried by the first channel, and the specific details indicating whether the PSCCH carries an empty packet are as follows: the payload carried by the first channel is scrambled using the sequence generated by the first RNTI number, indicating that the psch carries a null packet. The payload carried by the first channel is scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value of 200, indicating that no null packet is carried by the psch.

Or, the specific details indicating whether the pscch carries the null packet or not through a bit at a specific position in the sidelink control information carried by the first channel are as follows: setting a value of one bit of a specific position in the SCI carried in the first channel to 0 indicates that the psch carries a null packet. Otherwise, setting the value of one bit of the specific position to be 1, indicating that the PSSCH does not carry a null packet.

For the PSSCH transmitted by the first terminal, the second terminal knows whether the current PSSCH type is an empty data packet or not through the reception of the PSCCH.

And if the PSSCH carries an empty packet, giving up the receiving operation of the second channel.

In this embodiment of the present application, optionally, in a case where the second channel carries an empty packet, padding bits are generated through a media access control layer, and the padding bits are sent to a physical layer;

and performing modulation coding processing on the filling bits through the physical layer to obtain a modulation symbol, and mapping the modulation symbol on the second channel.

In this embodiment, optionally, when the second channel is used to carry the number null packets, padding bits are generated by the physical layer, modulation processing is performed on the padding bits to obtain a modulation symbol, and the obtained modulation symbol is mapped on the second channel.

In this embodiment, optionally, when the second channel is used to carry the number null packets, padding bits are generated by the physical layer, and are modulated and encoded to obtain a modulation symbol, and the obtained modulation symbol is mapped on the second channel.

Optionally, on the basis of the above example, the method further includes: indicating that the first channel and/or the second channel is located in a first sub-channel of the target resource; the target resource comprises at least one subchannel, that is, the target resource comprises one subchannel or at least two consecutive subchannels. It should be noted that the object involved in the indication may be a physical layer and a medium access control layer of the same terminal. Alternatively, the object to which the indication relates may also be a different terminal, i.e. the current terminal indicates to the other terminal.

For example, the first sub-channel indicating that the first channel and/or the second channel is located in the target resource may be indicating one resource set to the medium access control layer through the physical layer. Selecting a target resource in the resource set through the media access control layer, and indicating that the first channel and/or the second channel are/is located in a first sub-channel of the target resource. The selection of the target resource may be based on random selection, sequential selection, or selection based on idle conditions.

For example, the first sub-channel indicating that the first channel and/or the second channel is located in the target resource may also indicate that the first channel and/or the second channel is located in the first sub-channel of the target resource by indicating resource allocation of the target resource through the side link control information.

In an exemplary embodiment, the transmission modes of the first channel and the second channel may be: the physical layer of the terminal indicates (reports) a candidate resource set to a Media Access Control (MAC) layer, and the MAC layer selects one or more candidate resources for data and signaling transmission from the indicated (reported) candidate resource set of the physical layer. Wherein each resource in the candidate resource set comprises L continuous sub-channels, and L is an integer greater than 0.

In this embodiment, the resource selection method is that the physical layer indicates (reports) a candidate resource set to the MAC, and the MAC layer selects one or more candidate resources. For a candidate resource selected by the MAC layer, the MAC layer further selects a first subchannel among the L subchannels in the candidate resource for transmission of data and control signaling of V2X.

After the first terminal has the service, the MAC layer indicates the number L of the sub-channels and the length of the resource selection window to the physical layer. After the physical layer receives an indication from the MAC layer about the number of channels L and the number of resource selection window lengths, the physical layer obtains L and resource selection window information.

Further, the physical layer obtains the RSRP value of the unit resource in the resource selection window based on the operations of receiving SCIs of other terminals, measuring RSRP, and the like. The time domain of one resource unit is a time slot, and the frequency domain is continuous L sub-channels. For one unit resource RSRP, the RSRP is obtained by averaging RSRPs of L sub-channels within the unit resource. And in the resource selection window, the terminal excludes the unit resource with the RSRP higher than the threshold to obtain a resource set A. Taking the set A as a candidate resource set, the physical layer of the terminal indicates (reports) the candidate resource set to the MAC layer. Or, after obtaining the resource set a, another optional scheme is that the terminal further performs RSSI (Received Signal strength indicator) sorting on the resources in the resource set a, and selects the resource with low RSSI energy to form the resource set B. The terminal may indicate (report) set B as the candidate resource set to the MAC layer.

Based on the method, each candidate resource in the candidate resource set received by the MAC layer includes L consecutive subchannels, the MAC layer selects a first target candidate resource from the candidate resource set, and the MAC layer further selects a first subchannel in the first target candidate resource for data and signaling transmission.

The method described above is illustrated by way of example in fig. 5. In fig. 5, for one TB of a terminal, the MAC layer determines to perform three transmissions, where the first transmission is the initial transmission of the TB, and the second and third transmissions are the retransmission of the TB. For the first transmission of the TB, the MAC layer selects a candidate resource from the set of candidate resources and uses only the first subchannel among the L subchannels in the candidate resource for the transmission of data and signaling. For the second (or third) transmission of the TB, the MAC layer selects a candidate resource from the set of candidate resources, all L subchannels in the candidate resource, for the transmission of data and signaling.

As can be seen from fig. 5, the frequency domain resource sizes of the initial transmission and the retransmission of the same TB are different. If the terminal calculates the sizes of the two frequency domain resources respectively, and determines which resources are idle and can be used for data and control information transmission, additional resource selection complexity is introduced. Through the method, the physical layer of the terminal only needs to select the idle resources according to the size of one frequency domain resource and report the idle resources to the MAC layer, so that the complexity of resource selection is saved.

In an exemplary embodiment, a particular bit in the SCI indicates the resource allocation of the current psch, indicating that the frequency domain resources of the current psch are L consecutive subchannels, but the first terminal transmits data and signaling on only one of the L subchannels. For example, the terminal transmits data and signaling only on the first subchannel among the L subchannels.

Fig. 8 is a schematic transmission diagram according to an embodiment of the present application. The method described above is illustrated by taking fig. 8 as an example. In fig. 8, the first transmission is for the initial transmission of one psch and the second and third transmissions are for the retransmission of one psch. For the initial transmission of the PSSCH, the bits used to indicate the PSSCH frequency-domain resource allocation in the SCI indicate the consecutive L sub-channel positions as the frequency-domain resource allocation of the PSSCH channel. It should be noted that although L subchannel frequency-domain resources are indicated, the first terminal only transmits the PSSCH on the first subchannel among the L subchannels, that is, only the first subchannel among the L subchannels is used for carrying the PSSCH of the first terminal.

For the second (or third) transmission of the PSSCH, the bits in the SCI indicating the PSSCH frequency-domain resource allocation indicate consecutive L sub-channel positions as the frequency-domain resource allocation for the PSSCH channel. The first terminal transmits the PSSCH on all of the L subchannels.

For the second terminal, after detecting the frequency domain resource allocation indication indicated by the SCI of the first terminal, the second terminal receives the psch scheduled by the SCI according to the frequency domain resource allocation condition. For the reception of the initial PSSCH in FIG. 8, the second terminal receives the PSSCH in accordance with the L frequency-domain subchannels indicated by the first terminal SCI. In the embodiment, the psch initial transmission is mainly used to indicate reserved resources of retransmission resources, and the initial transmission is followed by retransmission, so that even if the second terminal cannot successfully receive the psch transmitted for the first time, it does not matter. However, this may bring additional benefits of reducing the indication overhead in SCI, and the SCI may indicate the frequency domain resources of the scheduled resources and may indicate the frequency domain resources of the reserved resources simultaneously through specific bits.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes:

the format of the side link control information carried in the second channel is indicated by the first channel.

In an exemplary embodiment, the first channel is a PSCCH channel and the second channel is a PSCCH channel. SCI signaling is split into two parts, a first part (stage) SCI is carried over a first channel and a second part (stage) SCI is carried over a second channel. For the first stage SCI, there corresponds one SCI format. For the second stage SCI, two SCI formats are included.

When the second-stage SCI is in the first SCI format, the frequency bandwidth and the frequency location of the second channel for carrying the SCI are the same as those of the first channel within a set time interval.

When the second-stage SCI is in the second SCI format, the frequency-domain bandwidth and the frequency-domain position of the second channel for carrying the SCI are indicated by the first channel within a set time interval, and the frequency-domain bandwidth and the frequency-domain position of the second channel are not limited to be the same as those of the first channel.

Optionally, the first terminal indicates the format of the sidelink control information carried in the second channel by one of the following manners.

For example, based on the sequence generated by the RNTI, the CRC bits are scrambled, and the specific details indicating the format of the SCI carried by the second channel are as follows: and scrambling the CRC bits carried by the first channel by using the sequence generated by the first RNTI number, wherein the format of the SCI carried by the second channel is the first SCI format. The CRC bits carried by the first channel are scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value of 200, indicating that the SCI carried by the second channel is in the second SCI format.

Alternatively, if a bit at a specific position in the SCI carried in the first channel has a value of 0, it indicates that the format of the SCI carried in the second channel is the first SCI format. Otherwise, if the value is 1, it indicates that the format of the SCI carried by the second channel is the second SCI format.

Fig. 9 is a schematic transmission diagram according to an embodiment of the present application. Based on the above indication manner, for the three first channels in fig. 9, the leftmost first channel indicates that the SCI format carried by the second channel is the first SCI format. The first channel in the middle indicates that the SCI format carried by the second channel is the second SCI format. The rightmost first channel indicates that the SCI format carried by the second channel is the second SCI format. The number of information bits of the SCI varies from SCI format to SCI format. Alternatively, although the SCI bit numbers are the same, at least a portion of the bit positions in the SCI are used for different indication purposes.

For the first channel, in addition to indicating, by the first channel, the SCI format carried by the second channel, the first channel may also be used to indicate which following time-frequency resources are reserved by the terminal. Therefore, after other terminals receive the reservation information, the reserved resources are avoided, and resource conflict among different terminals is avoided.

For SCI information carried by the second channel, it may be used to indicate time-frequency resource allocation of the psch channel. For example:

when the SCI of the second channel is in the first format, the SCI of the second channel does not include the time-frequency resource allocation information of the psch channel. However, the SCI of the second channel contains some other information, such as reserved bit information or indication information of reserved resources, etc.

When the SCI of the second channel is in the second format, the SCI of the second channel includes time-frequency resource allocation information of the psch channel. But does not include reserved bit information and indication information of reserved resources.

In this embodiment, in a set time interval (one timeslot), a GP (Guard Period) symbol and a PSFCH (Physical sidelink feedback CHannel) symbol are removed from a time-frequency resource corresponding to a frequency-domain resource position of a first CHannel (PSCCH), and a remaining resource is a target resource region. When the SCI carried by the second channel is in the first SCI format, the resource location of the second channel (PSSCH) is: all the remaining resources except the first channel, AGC (Automatic Gain Control) symbol and PSFCH symbol are within the first channel frequency domain resource range. For the part of the frequency domain resources of the leftmost slot in fig. 9, the enlarged diagram is shown in fig. 10.

Wherein, a GP (Guard Period) symbol is used for transceiving a converted symbol, and the terminal usually receives before the GP symbol and transmits after the GP symbol. Alternatively, the terminal typically transmits before the GP symbol and receives after the GP symbol. The PSFCH (Physical Sidelink Feedback CHannel) is a Feedback CHannel for feeding back whether data received by the terminal is correct or incorrect. In the PSFCH symbol, the terminal may receive feedback information of other terminals, and the terminal may also transmit the feedback information to other terminals through the PSFCH channel.

The first terminal is performing SCI transmission through the first channel and the second channel, and indicates a type of the second channel through the first channel.

And for the second terminal, receiving the first channel transmitted by the first terminal. The method comprises the steps of obtaining a first stage SCI carried by a first channel through the receiving of the first channel, and determining the format of side link control information carried in a second channel through the receiving of the first channel.

Optionally, the second terminal determines the format of the sidelink control information carried in the second channel by one of the following manners.

For example, based on the sequence generated by the RNTI, the CRC carried by the first channel is descrambled, and the format of the SCI carried by the second channel is determined, with the following specific details: and descrambling the CRC bits carried by the first channel by using the sequence generated by the first RNTI number, and performing CRC check after descrambling, wherein if the CRC check passes, the format of the SCI carried by the second channel is the first SCI format. Similarly, using the sequence generated by the second RNTI number to perform descrambling operation on the CRC bits carried by the first channel, and performing CRC check after descrambling, wherein if the CRC check passes, this indicates that the format of the SCI carried by the second channel is the second SCI format.

Or, if the value of one bit of a specific position in the SCI carried in the first channel received by the terminal is 0, the terminal determines that the format of the SCI carried in the second channel is the first SCI format. Otherwise, if the value is 1, the terminal determines that the format of the SCI carried by the second channel is the second SCI format.

If the SCI carried in the second channel obtained by the terminal is in the first SCI format, the terminal determines that the time-frequency resource position of the second channel is: and setting all the remaining resources except the first channel, the AGC symbol and the PSFCH symbol in the frequency domain resource range of the first channel in a time region (such as a time slot where the first channel is located).

If the SCI carried in the second channel obtained by the terminal is in the second SCI format, the terminal determines that the time-frequency resource position of the second channel is: and setting frequency domain resources indicated by the resource indication bits in the SCI carried in the second channel in the time domain.

And after obtaining the time-frequency resource position of the second channel, the receiving terminal further receives the second channel.

In this embodiment, the first channel carries the indication information about the second channel in a manner that the first channel indicates the format of the side link control information carried in the second channel, so that after other terminals receive the first channel, the frequency domain resource for receiving the second channel can be determined by the indication information, thereby improving the receiving accuracy.

In one exemplary embodiment, the first channel includes a PSCCH channel and PSCCHDMRS for PSCCH reception, and the PSCCH channel carries SCI information. In this embodiment, in a time slot, the time-frequency resource corresponding to the frequency-domain resource location of the first channel removes the GP symbol and the PSFCH symbol, and the remaining resource is the target resource region. In this embodiment, the second channel is mapped to all remaining resources except the first channel in the target resource region.

In this embodiment, the frequency domain resource location and the number of RBs occupied by the second channel are the same as those of the first channel (PSCCH). Fig. 11 is a schematic view of a resource structure in a timeslot according to an embodiment of the present application. As shown in fig. 11, the second channel is obtained by resource repetition of the first channel.

For example, the first channel contains 4 symbols, m RBs, and the 4 symbols are numbered 0,1,2,3, respectively. The second channel contains 7 symbols numbered 4,5,6,7,8,9,10 respectively. The frequency domain resource of the second channel is the same as the frequency domain resource of the first channel, and the symbol of the second channel passing through the first channel is obtained repeatedly. More specifically:

the resources on the m RBs of 4 symbols of the second channel are obtained by duplicating the m RBs on the 0 th symbol of the first channel.

The resources on the m RBs of 5 symbols of the second channel are obtained by duplicating the m RBs on the 1 st symbol of the first channel.

The resources on m RBs of 6 symbols of the second channel are obtained by copying m RBs on the 2 nd symbol of the first channel.

The resources on the m RBs of 7 symbols of the second channel are obtained by copying the m RBs on the 3 rd symbol of the first channel.

The resources on m RBs of 8 symbols of the second channel are obtained by copying m RBs on the 0 th symbol of the first channel.

The resources on m RBs of 9 symbols of the second channel are obtained by copying m RBs on the 1 st symbol of the first channel.

The resources on m RBs of 10 symbols of the second channel are obtained by copying m RBs on the 2 nd symbol of the first channel.

In this embodiment, the terminal transmits information via a first channel (PSCCH) and a second channel as shown in fig. 11.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes: indicating whether there is edge link control information for the second phase.

For example, whether there is SCI of the second stage is indicated by the first channel, and then the type of the second channel is indicated according to the indication information. In this way, there is a relationship between the SCI of the second stage and the type of the second channel. If no second stage SCI is indicated, it means that the type of the second channel is the second channel of the first type. If the second stage SCI is indicated, it means that the type of the second channel is a second channel of the second type.

In an exemplary embodiment, whether there is edge link control information of the second stage is indicated through the first channel is explained in detail. Fig. 12 and 13 are schematic diagrams of transmission provided in an embodiment of the present application. In fig. 12 and 13, the first channel is a PSCCH channel, the second channel is a PSCCH channel for carrying data information, and the third channel is a PSCCH channel or a PSCCH channel. SCI signaling is divided into two parts, a first part (stage) SCI is carried over a first channel (PSCCH channel) and a second part (stage) SCI is carried over a third channel.

As shown in fig. 12 and 13, the second channel includes two types, and features as follows:

for the second channel of the first type, the frequency domain resource of the second channel is the sub-channel where the SCI of the first stage is located, and the time domain resource is within the same set time as the SCI of the first stage. E.g. in the same time slot as the first stage SCI.

For the second channel of the second type, the frequency domain resources of the second channel are the frequency domain resources indicated by the SCI of the second stage, and the time domain resources are within the same set time as the SCI of the first stage (SCI of the second stage), for example, within the same time slot as the SCI of the first stage (SCI of the second stage).

In this embodiment, the first terminal indicates whether there is a SCI of the second stage by one of the following methods.

For example, the CRC bits are scrambled based on the sequence generated by the RNTI, and the specific details indicating whether there is a second stage SCI are: and scrambling the CRC bits carried by the first channel by using the sequence generated by the first RNTI number, wherein the first-stage SCI does not have a corresponding second-stage SCI. The CRC bits carried by the first channel are scrambled using a sequence generated by a second RNTI number, e.g., an RNTI value of 200, indicating that the first-stage SCI has a corresponding second-stage SCI.

Alternatively, if a bit at a specific position in the SCI carried in the first channel has a value of 0, it indicates that there is no SCI in the second stage. Otherwise, if the value is 1, it indicates that there is a second stage SCI.

Based on the above indication, no SCI for the second phase is indicated for the three first channels of fig. 12 or fig. 13, the leftmost first channel. The first channel in the middle indicates that there is a second stage SCI. The rightmost first channel, indicates that there is a second stage SCI.

In this embodiment, the information indicated by the first-stage SCI includes reserved resource indication information. And the reserved resource indication information comprises frequency domain resource indication bits of the reserved resources and time domain resource indication bits of the reserved resources. In this embodiment, the bits used for indicating the reserved resource frequency domain resources in the first-stage SCI are also used for indicating the frequency domain resources of the current second channel. I.e. a specific bit in the first stage SCI, the indicated frequency domain resource is the reserved frequency domain resource, and the indicated frequency domain resource is also the current second channel frequency domain resource.

In this embodiment, the specific bit in the first stage SCI indicates L consecutive sub-channel frequency domain resources as the resource allocation indication of the current second channel, but the current second channel only occupies the first sub-channel.

Illustratively, indicating that the first channel and/or the second channel is located in a first sub-channel of a target resource comprises:

indicating at least two continuous sub-channels, and punching the rest sub-channels except the first sub-channel;

or indicating at least two continuous sub-channels, and performing punching processing on the remaining time frequency resources except the time frequency resource corresponding to the first channel in the time frequency resources corresponding to the at least two continuous sub-channels in the set time interval.

Optionally, indicating that the first channel and/or the second channel is located in the first sub-channel of the target resource, includes:

indicating at least one sub-channel, and performing rate matching on the first sub-channel;

alternatively, at least one subchannel is indicated and rate matching is performed on the frequency domain resources of the first channel.

The manner of punching is shown in fig. 12. The way of rate matching is shown in fig. 13.

The second terminal receives the first channel. Through the reception of the first channel, the second terminal obtains the first-stage SCI carried by the first channel, and through the reception of the first channel, determines whether a second-stage SCI associated with the first-stage SCI exists.

Optionally, the second terminal determines whether there is side link control information of the second stage by one of the following methods.

For example, based on the sequence generated by the RNTI, the CRC bits carried by the first channel are descrambled, and it is determined whether there is a second-stage SCI associated with the first-stage SCI, the specific details are as follows: and using the sequence generated by the first RNTI number to perform descrambling operation on the CRC bits carried by the first channel, performing CRC check after descrambling, and if the CRC check passes, indicating that no second-stage SCI associated with the first-stage SCI exists. Similarly, using the sequence generated by the second RNTI number to perform descrambling operation on the CRC bits carried by the first channel, performing CRC check after descrambling, and if the CRC check passes, indicating that there is a second-stage SCI associated with the first-stage SCI.

Or, if the value of one bit of a specific position in the SCI carried in the first channel received by the terminal is 0, the terminal determines that there is no second-stage SCI associated with the SCI of the first stage. Otherwise, if the value is 1, the terminal determines that there is a second-stage SCI associated with the SCI of the first stage.

The second terminal determines whether there is a second-stage SCI associated with the first-stage SCI, and then determines the type of the second channel based on the presence of the second-stage SCI. That is, whether there is a SCI of the second stage or not, and the type of the second channel. If there is no second-stage SCI, it can be determined that the type of the second channel is the first type of the second channel. Otherwise, the terminal judges that the type of the second channel is the second channel of the second type.

The second terminal determines the frequency domain resource of the second channel of the first type by at least one of the following modes:

based on the indication of the second channel type and the L frequency domain resources indicated by the specific bit in the first stage SCI (or allocating bit for the resource carried in the first channel), determining the frequency domain resources of the second channel as: if the second channel is a first type of second channel, the frequency domain resource of the second channel is a first sub-channel of the L sub-channels indicated by a specific bit in the SCI.

Determining frequency domain resources of the second channel based only on the indication of the second channel type: and if the second channel is the first type of second channel, the frequency domain resource of the second channel is the sub-channel where the first channel is located, or the same frequency domain resource of the first channel.

The second terminal further determines that the time-frequency resource of the first type of second channel is: and setting all the remaining resources except the first channel, the AGC symbol and the PSFCH symbol in a frequency domain resource range of a second channel determined by the second terminal in a time region (such as a time slot in which the first channel is located).

For a second channel of a second type, the second terminal determines that the time-frequency resource position of the second channel is: setting the frequency domain resource indicated by the second stage SCI in the time domain (e.g. the time slot where the first channel is located), and removing all the remaining resources except the first channel, the third channel, the AGC symbol, and the PSFCH symbol.

And after obtaining the time-frequency resource position of the second channel, the second terminal further receives the second channel.

In this embodiment, whether the second-stage side link control information exists is indicated by the first channel, so that the first channel carries the indication information about the second channel, and after other terminals receive the first channel, the frequency domain resource for receiving the second channel can be determined by the indication information, thereby improving the receiving accuracy.

In this embodiment of the present application, optionally, the indicating the type of the second channel includes:

indicating the use of reserved bit information carried by the second channel. Wherein the indication of the use of the reserved bit information carried by the second channel includes one of:

indicating a version protocol of the second channel;

indicating the protocol version of the information carried in the second channel.

In an exemplary embodiment, the first channel is referred to as a PSCCH channel, and carries SCI information. The second channel may be a PSCCH channel or a pscsch channel, and is used for carrying reserved bit information. Next, the second channel will be described as a PSCCH channel as an example.

In this embodiment, the first channel indicates the type of the second channel, and the manner of indicating the type of the second channel may be one of the following manners:

indicating whether the second channel carries reserved bit information;

indicating a protocol version of the second channel;

indicating the protocol version carrying the information (e.g., SCI) in the second channel.

For example, one bit at a particular location in the SCI carried over the first channel indicates the protocol version, which may indicate whether version 0 or version 1. Version 0 is indicated if one bit of a specific location in the SCI is 0, and version 1 is indicated if one bit of a specific location in the SCI is 1.

For example, for the second channel of release 0, the reserved bit information carried in the second channel has a value of 0, which indicates that the reserved bit information is not used to indicate any information. For the second channel of release 1, reserved bit information carried in the second channel is used to indicate some information of future protocol versions. It should be noted that the reserved bit information is used to indicate what information in each bit region in the future protocol version, and can be determined again in the future protocol version.

And for the second receiving terminal of the current version, after receiving the first channels of other terminals, not receiving the second channel.

When the second terminal of the future edition receives the first channels of other transmitting terminals, if the edition indicated by the first channel is edition 0, the second channel is not received. If the version indicated by the first channel is version 1, the second channel is received.

In this embodiment, the first channel is used to indicate whether reserved bit information carried by the second channel is given a certain purpose, so that the first channel carries indication information about the second channel, and after receiving the first channel, other terminals can determine whether to receive the second channel through the indication information.

Optionally, the indicating the type of the second channel includes: and indicating the type of the second channel through the new data indication information and the redundancy version indication information carried in the first channel.

In one exemplary embodiment, the manner of indicating the type of the second channel through the first channel is: the type of the second channel is indicated by NDI and RV.

And overlapping the frequency domain resources of the first channel and the second channel in a set time interval. For example, the set time interval includes one time slot or includes a plurality of time slots.

In fig. 7, the first channel is a PSCCH channel for carrying SCI, and the second channel is a PSCCH channel.

And when the second channel is of the first type, the frequency domain position of the second channel is the sub-channel where the first channel is located in a set time interval.

When the second channel is of the second type, the frequency domain bandwidth and the frequency domain position of the second channel are indicated by the first channel within a set time interval.

In this embodiment, the type of the second channel is indicated by the first channel. This is indicated by:

the NDI bit in the SCI carried by the first channel indicates initial transmission, and the RV value indicated by the RV in the SCI is not equal to 0, indicating that the type of the second channel is the first type.

The NDI bit in the SCI carried by the first channel indicates initial transmission, and the RV value indicated by the RV indication bit in the SCI is equal to 0, which indicates that the type of the second channel is the second type.

The NDI bit in the SCI carried by the first channel indicates retransmission, and the type of the second channel is the second type.

The first terminal performs transmission of V2X through the first channel and the second channel.

And for the second terminal, receiving the first channel transmitted by the first terminal. Through the reception of the first channel, an NDI bit indication and an RV value are obtained.

If the received NDI bit is indicated as initial transmission and the RV value is not equal to 0, judging that the type of the second channel is the first type;

if the received NDI bit is indicated as initial transmission and the RV value is equal to 0, judging that the type of the second channel is a second type;

the type of the second channel is a second type if the received NDI bit indicates a retransmission.

After obtaining the type of the second channel, the second terminal determines that the frequency domain resource of the second channel is:

when the second channel is of the first type, determining the time-frequency resource position of the second channel as: and setting all the remaining resources except the first channel, the AGC symbol and the PSFCH symbol in the sub-channel in which the first channel is located in a time region (for example, the time slot in which the first channel is located).

When the second channel is of the second type, determining the time-frequency resource position of the second channel as: in the set time region (for example, the time slot where the first channel is located), the frequency domain resource indicated by the resource indicator bit in the SCI carried in the second channel is all the remaining resources except for the first channel, the AGC symbol, and the PSFCH symbol.

And after obtaining the time-frequency resource position of the second channel, the second terminal further receives the second channel.

In this embodiment, the type of the second channel is indicated by indicating the new data indication information and the redundancy version indication information carried in the first channel, so that the indication information about the second channel is carried in the first channel, and thus, after other terminals receive the first channel, the frequency domain resource for receiving the second channel can be determined by the indication information, thereby improving the receiving accuracy.

Fig. 14 is a flowchart of a method of a receiving processing method according to an embodiment of the present application. The method may be performed by a receiving processing means, which may be implemented by software and/or hardware, typically integrated in a terminal. As shown in fig. 14, the method includes:

step 100, receiving a first channel, and obtaining indication information of the first channel about the first channel and/or a second channel.

And within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

For example, obtaining the indication information of the first channel about the first channel and/or the second channel may be: and based on the sequence generated by the wireless network temporary identifier, descrambling the cyclic redundancy check bits carried by the first channel to obtain the indication information of the first channel about the first channel and/or the second channel. Or, based on the sequence generated by the radio network temporary identifier, the indication information of the first channel about the first channel and/or the second channel is obtained by descrambling the payload carried by the first channel. Or, obtaining a bit of a specific position in the side link control information carried by the first channel, and using the obtained bit of the specific position as the indication information.

And 200, receiving the second channel based on the indication information.

It should be noted that, if the indication information is a second channel bearer null packet, the receiving operation performed on the second channel is abandoned.

Illustratively, receiving the second channel based on the indication information includes:

receiving a second channel according to a frequency domain resource indicated by a frequency domain resource allocation bit in the side link control information under the condition that the indication information contains the side link control information scheduled by a first channel;

receiving a second channel according to the same frequency domain resource as the first channel under the condition that the indication information does not contain side link control information scheduled by the first channel;

and receiving a second channel according to the sub-channel where the first channel is located under the condition that the indication information does not contain the side link control information scheduled by the first channel.

Illustratively, receiving the second channel based on the indication information includes:

under the condition that the indication information indicates that the second channel is a channel with fixed frequency domain bandwidth, receiving the second channel according to the sub-channel where the first channel is located;

and under the condition that the indication information indicates that the second channel is not the channel with the fixed frequency domain bandwidth, receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel.

Illustratively, receiving the second channel based on the indication information includes:

receiving the second channel according to the same frequency domain resources as the first channel under the condition that the indication information indicates that the second channel is a channel with fixed frequency domain bandwidth;

and under the condition that the indication information indicates that the second channel is not the channel with the fixed frequency domain bandwidth, receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel.

Illustratively, receiving the second channel based on the indication information includes:

under the condition that the indication information indicates that the frequency domain resource indication bit carried by the first channel is not used for indicating a second channel with fixed frequency domain bandwidth, receiving the second channel according to the same frequency domain resource as the first channel;

and receiving the second channel according to the frequency domain resources indicated by the frequency domain resource indication bits carried by the first channel under the condition that the indication information indicates that the frequency domain resource indication bits carried by the first channel are used for indicating the second channel with the fixed frequency domain bandwidth.

Illustratively, receiving the second channel based on the indication information includes:

receiving a second channel according to the same frequency domain resources as the first channel under the condition that the indication information indicates that the frequency domain resources of the first channel and the second channel are the same;

and receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel under the condition that the indication information indicates that the frequency domain resources of the first channel and the second channel are different.

Illustratively, receiving the second channel based on the indication information includes:

receiving a second channel according to the same frequency domain resource as the first channel under the condition that the indication information indicates that the first channel and the second channel are the same sub-channel;

and receiving the second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried by the first channel under the condition that the indication information indicates that the first channel and the second channel are not the same sub-channel.

Illustratively, receiving the second channel based on the indication information includes:

determining frequency domain resources for receiving a second channel based on the type of the second channel and resource allocation bits carried in a first channel;

receiving the second channel based on the frequency domain resources.

Illustratively, determining the frequency domain resources for receiving the second channel based on the type of the second channel and the resource allocation bits carried in the first channel comprises:

in the case that the type of the second channel is a channel with fixed frequency domain bandwidth, determining that a first subchannel of at least one subchannel indicated by resource allocation bits carried in the first channel is used for receiving the second channel;

in the case that the type of the second channel is not a channel of a fixed frequency domain bandwidth, determining at least one sub-channel indicated by resource allocation bits carried in the first channel for receiving the second channel.

Illustratively, determining the frequency domain resources for receiving the second channel based on the type of the second channel and the resource allocation bits carried in the first channel comprises:

determining a sub-channel where the first channel is located or determining that the same frequency domain resource of the first channel is used for receiving the second channel when the type of the second channel is a channel with a fixed frequency domain bandwidth;

in the case where the type of the second channel is not a channel of a fixed frequency domain bandwidth, at least one subchannel indicated by resource allocation bits carried in the first channel is determined for receiving the second channel.

Illustratively, in a case where the indication information includes new data indication information and redundancy version indication information, the receiving the second channel based on the indication information includes:

under the condition that the new data indication information indicates that the current transmission is the initial transmission and the redundancy version indication information is 0, receiving a second channel according to the frequency domain resource indicated by the frequency domain resource indication bit carried in the first channel;

and under the condition that the new data indication information indicates that the current transmission is the initial transmission and the redundancy version indication information is not 0, receiving a second channel according to one of the following conditions:

the same frequency domain resources as the first channel;

the sub-channel where the first channel is located.

Illustratively, after receiving the second channel based on the indication information, the method further comprises:

acquiring sensing information carried by the second channel, and performing resource selection based on the sensing information, wherein the sensing information comprises at least one of the following information:

information obtained by receiving side link control information of other terminals;

reference signal received power measurements.

Illustratively, after receiving the second channel based on the indication information, the method further comprises:

and under the condition that the received first channel and the second channel are positioned in the same sub-channel, taking the reference signal received power measurement result of the second channel as the reference signal received power measurement result of any sub-channel in the target resource reserved by the first channel. Wherein the target resource reserved by the first channel comprises at least one continuous sub-channel.

It should be noted that, the receiving terminal may be regarded as the second terminal in the foregoing scheme, and the specific details of receiving the second channel based on the indication information are as described above, and are not described herein again.

The embodiment of the application also provides an indicating device, and the device realizes that the first channel carries the indicating information about the first channel and/or the second channel by executing the indicating method. The apparatus, which may be implemented by software and/or hardware, and is generally configured at a transmitting terminal, includes:

an indication module, configured to indicate through a first channel according to one of the following indication modes:

a type of the first channel;

a type of information carried in the first channel;

a type of the second channel;

a type of the first channel and the second channel;

whether a specific bit in information carried in the first channel is used for resource allocation of the second channel;

and overlapping the frequency domain resources of the first channel and the second channel in a set time interval.

The indicating device provided in the embodiment of the present application is configured to implement the indicating method of the above embodiment, and the implementation principle and technical effect of the indicating device are similar to those of the indicating method, and are not described herein again.

The embodiment of the application also provides a receiving processing device. Fig. 15 is a block diagram of a receiving processing device according to an embodiment of the present application. The apparatus receives the second channel based on indication information about the first channel and/or the second channel in the first channel by performing a reception processing method. The apparatus may be implemented by software and/or hardware and is generally configured at a receiving terminal. As shown in fig. 15, the apparatus includes:

the indication information obtaining module 300 is configured to receive a first channel, and obtain indication information of the first channel about the first channel and/or a second channel.

A receiving module 400, configured to receive the second channel based on the indication information.

And within a set time interval, overlapping frequency domain resources of the first channel and the second channel.

The receiving processing apparatus provided in the embodiment of the present application is configured to implement the receiving processing method of the foregoing embodiment, and the implementation principle and technical effect of the receiving processing apparatus are similar to those of the receiving processing method, and are not described herein again.

The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.

The embodiment of the application provides a terminal, which comprises a memory and one or more processors; the memory arranged to store one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the methods of the embodiments of the present application.

The terminal provided above may be configured to perform the method provided in any of the embodiments above, with corresponding functions and benefits.

The embodiment of the application also provides a storage medium of executable instructions, and the computer executable instructions realize the method of the embodiment of the application when being executed by a computer processor.

The above description is only exemplary embodiments of the present application, and is not intended to limit the scope of the present application.

In general, the various embodiments of the application may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.

Any logic flow block diagrams in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. The computer program may be stored on a memory. The memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, Read Only Memory (ROM), Random Access Memory (RAM), optical storage devices and systems (digital versatile disks, DVDs, or CD discs), etc. The computer readable medium may include a non-transitory storage medium. The data processor may be of any type suitable to the local technical environment, such as but not limited to general purpose computers, special purpose computers, microprocessors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), programmable logic devices (FGPAs), and processors based on a multi-core processor architecture.