阅读说明：本技术 用户装置 (User device ) 是由 吉冈翔平 永田聪 王欢 于 2019-04-02 设计创作，主要内容包括：用户装置具有：接收部,其从基站装置接收一个或多个许可的设定信息；以及发送部,所述一个或多个许可是激活的,该发送部使用由该一个或多个许可指定的资源来发送侧链路的信号。(A user device is provided with: a reception unit that receives one or more pieces of permitted setting information from the base station apparatus; and a transmitting section that transmits a signal of the sidelink using a resource specified by the one or more grants, the one or more grants being active.)

1. A user device, having:

a reception unit that receives one or more pieces of permitted setting information from the base station apparatus; and

a transmitting section that transmits a signal of the sidelink using a resource specified by the one or more grants, the one or more grants being active.

2. A user device, wherein,

the user device has a transmission unit that transmits one or more pieces of setting information of the license to another user device,

the one or more grants may be active, and the transmitting unit may transmit a sidelink signal to the other user equipment using a resource specified by the one or more grants.

3. A user device, wherein,

the user device has a receiving section that receives setting information of one or more permissions from other user devices,

the one or more grants may be active, and the receiving unit may receive a sidelink signal using a resource specified by the one or more grants.

4. A user device, having:

a reception unit that receives one or more pieces of permitted setting information from the base station apparatus;

a control unit that activates all or a part of the one or more grants when the receiving unit receives an activation command from the base station device, and deactivates all or a part of the one or more grants when the receiving unit receives a deactivation command from the base station device; and

and a transmission unit that transmits a signal of the side link using the resource specified by the activated grant.

5. A user device, having:

a transmitting unit that transmits one or more pieces of permitted setting information to another user apparatus; and

a control unit that activates all or a part of the one or more permissions when the transmission unit transmits an activation command to the other user apparatus, and deactivates all or a part of the one or more permissions when the transmission unit transmits a deactivation command to the other user apparatus,

the transmission section transmits a signal of a side link using a resource specified by the activated grant.

6. A user device, having:

a receiving unit that receives setting information of one or more permissions from another user apparatus; and

a control unit that activates all or a part of the one or more licenses when the receiving unit receives an activation command from the other user device, and deactivates all or a part of the one or more licenses when the receiving unit receives a deactivation command from the other user device,

the receiving section receives a signal of a side link using a resource specified by the activated license.

Technical Field

The present invention relates to a user equipment in a wireless communication system.

Background

In LTE (Long Term Evolution) and systems following LTE (e.g., also referred to as LTE-a (LTE advanced), nr (new radio) (also referred to as 5G)), D2D (Device to Device) technology in which direct communication is performed between user apparatuses without via a base station apparatus is being studied (e.g., non-patent document 1).

D2D reduces traffic between the user equipment and the base station apparatus, and enables communication between the user equipment even when the base station apparatus cannot perform communication, such as in a disaster. In addition, D2D is referred to as a "sidelink" in 3GPP (3rd Generation Partnership Project: third Generation Partnership Project).

D2D communication is roughly classified into D2D discovery (also referred to as D2D discovery) for discovering other user devices capable of communication, and D2D communication (also referred to as D2D direct communication, D2D communication, inter-terminal direct communication, and the like) for direct communication between user devices. Hereinafter, D2D communication (D2D communication), D2D discovery (D2D discovery), and the like are simply referred to as D2D, without particularly distinguishing them. Various use cases of services related to V2X (Vehicle to all systems) in NR are being investigated.

Documents of the prior art

Non-patent document

Non-patent document 1: 3GPP TS 36.211 V15.4.0(2018-12)

Non-patent document 2: 3GPP TS 38.321 V15.4.0(2018-12)

Disclosure of Invention

Problems to be solved by the invention

An arrangement grant (configured grant) is proposed in which a user equipment can perform UL data transmission without receiving a PDCCH every time UL data transmission is performed (for example, non-patent document 2). Further, in UL data transmission of a user equipment, based on the assumption that a plurality of different services require a plurality of different resource settings, a configuration grant (configured grant) supporting a plurality of active services is being studied.

However, for sidelink, no specific technique for supporting multiple active configuration grants has been proposed.

The present invention has been made in view of at least the above problems, and an object of the present invention is to provide a technique for supporting configuration permission for realizing multiple activations in a sidelink.

Means for solving the problems

According to the disclosed technology, there is provided a user device having:

a reception unit that receives one or more pieces of permitted setting information from the base station apparatus; and

a transmitting section, the one or more grants being active, the transmitting section transmitting a signal of a sidelink using a resource specified by the one or more grants.

Effects of the invention

In accordance with the disclosed technology, a technique for enabling support of multiple activated configuration grants in a sidelink may be provided.

Drawings

Fig. 1 is a diagram for explaining V2X.

Fig. 2 is a diagram for explaining example (1) of the transmission mode of V2X.

Fig. 3 is a diagram for explaining an example (2) of the transmission mode of V2X.

Fig. 4 is a diagram for explaining example (3) of the transmission mode of V2X.

Fig. 5 is a diagram for explaining an example (4) of the transmission mode of V2X.

Fig. 6 is a diagram showing an example of a channel structure.

FIG. 7 is a timing chart for explaining the operation of example 1-1.

FIG. 8 is a timing chart for explaining the operation of example 1-2.

FIG. 9 is a timing chart for explaining the operation of example 2-1.

FIG. 10 is a timing chart for explaining the operation of example 2-2.

Fig. 11 is a diagram showing an example of a functional configuration of the base station apparatus 10 according to the embodiment of the present invention.

Fig. 12 is a diagram showing an example of the functional configuration of the user apparatus 20 according to the embodiment of the present invention.

Fig. 13 is a diagram showing an example of a hardware configuration of the base station apparatus 10 or the user apparatus 20 according to the embodiment of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are merely examples, and embodiments to which the present invention is applied are not limited to the embodiments described below.

In the actual operation of the wireless communication system according to the embodiment of the present invention, the conventional technique can be used as appropriate. The prior art is, for example, but not limited to, existing LTE or NR.

In the embodiment of the present invention, the Duplex (Duplex) mode may be a TDD (Time Division Duplex) mode, an FDD (Frequency Division Duplex) mode, or other modes (for example, a Flexible Duplex (Flexible Duplex) mode).

Fig. 1 is a diagram for explaining V2X. In 3GPP, technologies for implementing V2X (Vehicle to all systems) or eV2X (enhanced V2X: enhanced V2X) by extending the function of D2D are being studied, and standardization is being advanced. As shown in fig. 1, V2X is a part of ITS (Intelligent Transport Systems) and is a generic term of V2V (Vehicle to Vehicle) representing a form of communication performed between automobiles, V2I (Vehicle to Infrastructure) representing a form of communication performed between automobiles and roadside units (RSU: Road-Side Unit) disposed beside roads, V2N (Vehicle to Network) representing a form of communication performed between automobiles and ITS servers, and V2P (Vehicle to Pedestrian) representing a form of communication performed between automobiles and mobile terminals held by pedestrians.

In 3GPP, V2X for cellular communication and inter-terminal communication using LTE or NR is being studied. V2X using cellular communication is also referred to as cellular V2X. In V2X of NR, it is studied to realize a large capacity, a low delay, a high reliability, and a QoS (Quality of Service) control.

It is assumed that V2X of LTE or NR can be studied in the future without being limited to the 3GPP specification. For example, studies for ensuring interoperability (interoperability), reducing costs due to installation of higher layers, a concurrent or handover method of multiple RATs (Radio Access Technology), a regulatory correspondence of each country, a data acquisition, distribution, database management, and a use method of V2X platform of LTE or NR are conceived.

In the embodiment of the present invention, a mode in which a communication device such as a User Equipment (UE) is mounted in a vehicle is mainly assumed, but the embodiment of the present invention is not limited to this mode. For example, the communication device may be a terminal held by a person, or may be a device mounted on an unmanned aerial vehicle or an aircraft.

SL (Sidelink) may be distinguished by any one or a combination of UL (Uplink) and DL (Downlink) and the following 1) -4). Further, SL may also be other names.

1) Resource allocation in time domain

2) Resource allocation in frequency domain

3) Reference Synchronization Signal (including SLSS (Sildelink Synchronization Signal: side Link Synchronization Signal))

4) Reference signal used for path loss measurement for transmission power control

For the OFDM (Orthogonal Frequency Division Multiplexing) scheme of SL or UL, any of CP-OFDM (Cyclic-Prefix OFDM), DFT-S-OFDM (Discrete Fourier Transform-Spread-OFDM), OFDM with unconverted precoding (Transform precoding), and OFDM with converted precoding (Transform precoding) may be used.

As shown in fig. 2 and the like, the communication system of the present embodiment includes a base station apparatus 10 and a user apparatus 20. The user apparatuses 20 performing the sidelink communication are described as a user apparatus 20A, a user apparatus 20B, and the like, for the user apparatuses 20.

The base station apparatus 10 is a communication apparatus that provides 1 or more cells and performs wireless communication with the user apparatus 20. The physical resources of a wireless signal are defined by the time domain, which may be defined by the number of OFDM symbols, and the frequency domain, which may be defined by the number of subcarriers or the number of resource blocks. In addition, a TTI (Transmission Time Interval) in the Time domain may be a slot, and a TTI may be a subframe.

The base station apparatus 10 transmits a synchronization signal and system information to the user apparatus 20. Synchronization signals are for example PSS and SSS. The system information is transmitted, for example, through PBCH or PDSCH, also referred to as broadcast information. The base station apparatus 10 transmits a control signal or data to the user apparatus 20 through DL (Downlink) and receives a control signal or data from the user apparatus 20 through UL (Uplink). Here, the content transmitted through a control channel such as PUCCH or PDCCH is referred to as a control signal, and the content transmitted through a shared channel such as PUSCH or PDSCH is referred to as data. For example, control signals and data may also be collectively referred to as "signals".

The user device 20 is a communication device having a wireless communication function, such as a smartphone, a mobile phone, a tablet computer, a wearable terminal, and a Machine-to-Machine (M2M) communication module. The user device 20 is a communication device mounted on a vehicle, for example, as described above.

The user equipment 20 receives a control signal or data from the base station apparatus 10 through the DL and transmits the control signal or data to the base station apparatus 10 through the UL, thereby utilizing various communication services provided by the wireless communication system. The user equipment 20 may be referred to as UE, and the base station apparatus 10 may be referred to as eNB (or gNB).

In SL in LTE, Mode 3(Mode3) and Mode 4(Mode4) are defined for SL resource allocation to the user equipment 20. In the Mode 3(Mode3), transmission resources are dynamically allocated using DCI (Downlink Control Information) transmitted from the base station apparatus 10 to the user apparatus 20. In addition, in Mode 3(Mode3), SPS (Semi Persistent Scheduling) can also be performed. In Mode 4(Mode4), the user equipment 20 autonomously selects a transmission resource from a resource pool.

In the embodiments of the present invention, the slot (slot) may be replaced with a symbol, a mini slot, a subframe, a radio frame, or a TTI (Transmission Time Interval). In addition, the cell (cell) in the embodiment of the present invention may be replaced with a cell group, a carrier component, BWP, a resource pool, a resource, RAT (Radio Access Technology: Radio Access Technology), a system (including wireless LAN), and the like.

Fig. 2 is a diagram for explaining example (1) of the transmission mode of V2X. In the transmission mode of the sidelink communication shown in fig. 2, in step 1, the base station apparatus 10 transmits scheduling information of the sidelink to the user apparatus 20A. Next, the user equipment 20A transmits PSCCH (Physical downlink Control Channel) and PSCCH (Physical downlink Shared Channel) to the user equipment 20B based on the received scheduling information (step 2). The transmission mode of the sidelink communication shown in fig. 2 may also be referred to as sidelink transmission mode3 in LTE. In the sidelink transmission mode3 in LTE, sidelink scheduling by Uu is performed. Uu is a Radio interface between UTRAN (Universal Radio Access Network) and UE (User Equipment). The transmission mode of the side link communication shown in fig. 2 may be referred to as a side link transmission mode1 in NR.

Fig. 3 is a diagram for explaining an example (2) of the transmission mode of V2X. In the transmission mode of the sidelink communication shown in fig. 3, in step 1, user equipment 20A transmits PSCCH and PSCCH to user equipment 20B using the autonomously selected resources. Similarly, user equipment 20B transmits PSCCH and pscsch to user equipment 20A using the autonomously selected resources (step 1). The transmission mode of the sidelink communication shown in fig. 3 may be referred to as a sidelink transmission mode 2a in NR. In the side-link transmission mode 2a in NR, the UE itself performs resource selection.

In the sidelink transmission mode 2a, the user equipment 20 on the transmission side performs sensing and selects an idle SL resource. The sensing procedure may be performed by decoding SCI (Sidelink Control Information) transmitted from the other user equipment 20, or may be performed according to the reception power through Sidelink measurement. SFCI (Sidelink Feedback Control Information) transmitted via PSFCH (Physical Sidelink Feedback Channel) may also be used for the sensing process. The resource selection process of deciding resources used in the sidelink transmission may be performed based on the result of the sensing process.

Furthermore, the granularity of the resources applied to the sensing procedure and the resource selection procedure may also be specified in units of PRBs, in units of slots, in units of other resource patterns. By decoding the SCI applied in the sensing procedure, at least information about the resources of the sidelink notified by the user equipment 20 sending the SCI is retrieved.

Fig. 4 is a diagram for explaining example (3) of the transmission mode of V2X. In the transmission mode of the sidelink communication shown in fig. 4, in step 0, the base station apparatus 10 sets a scheduling grant (scheduling grant) for transmitting a sidelink to the user apparatus 20A via RRC (Radio Resource Control). Next, the user equipment 20A transmits the psch to the user equipment 20B in accordance with the received scheduling grant (step 1). The transmission mode of the sidelink communication shown in fig. 4 may be referred to as a sidelink transmission mode 2c in NR.

Fig. 5 is a diagram for explaining an example (4) of the transmission mode of V2X. In the transmission mode of the sidelink communication shown in fig. 5, in step 1, the user equipment 20C transmits the scheduling information of the sidelink to the user equipment 20A via the PSCCH. Next, the user equipment 20A transmits PSCCH and pscsch to the user equipment 20A based on the received scheduling information (step 2). The transmission mode of the sidelink communication shown in fig. 5 may also be referred to as a sidelink transmission mode 2d in NR. Further, "transmitting the PSCCH" may be referred to as "transmitting control information using the PSCCH". Further, "transmitting the psch" may be referred to as "transmitting data using the psch".

Fig. 6 shows an example of a channel configuration of the sidelink, and the PSCCH, pscsch, and PSFCH are sequentially arranged in the time domain. The arrangement of PSCCH, and PSFCH is not limited to fig. 6, and may be frequency domain multiplexed. For example, the PSCCH and the PSCCH may be adjacently configured in the frequency domain, and the PSCCH-based SCI and the PSCCH-based data may be transmitted simultaneously (for example, in 1 subframe).

(configuration permission)

In the present embodiment, since an operation example based on the configuration permission in the SL is described, first, a description is given of the configuration permission (configured grant). In general, the permission (grant) is a signal transmitted from a certain communication apparatus (for convenience, communication apparatus a) to another communication apparatus (for convenience, communication apparatus B) and is a signal for permitting transmission of a signal to communication apparatus B. The grant (grant) includes information of resources (time/frequency resources) to be used by communication apparatus B for signal transmission.

The grant (grant) includes contents that are transmitted by a PDCCH or the like and dynamically perform a transmission grant, and a configuration grant (configured grant) that is set in advance by RRC signaling or the like. When the communication device a sets the configuration grant (including the time resource (or the time/frequency resource), the cycle, and the like) to the communication device B, for example, the communication device B performs signal transmission using the resource specified by the configuration grant in accordance with the cycle specified by the configuration grant. Further, the communication device a may monitor the signal reception for using the resource specified by the configuration permission at a cycle specified by the configuration permission.

The communication device B set with the configuration permission does not need to receive the permission every time of transmission. Hereinafter, the placement permission may be referred to as "CG".

Among the CGs, there are a CG of type 1(type 1) and a CG of type 2(type 2). In type 1, the CG setting information includes a resource (which may be a time resource or a time/frequency resource) and a parameter (e.g., RRC parameter) specifying a cycle. In the communication device B in which the CG of type 1 is set, the CG is always active (active). Communication device B can use the periodic resources for data transmission without receiving PDCCH-based signaling. Furthermore, communication device B may Skip (Skip) transmission.

In type 2, the CG setting information also includes a resource (which may be a time resource or a time/frequency resource) and a parameter (e.g., RRC parameter) specifying a cycle. In the communication device B in which the CG of type 2 is set, the CG is not activated only at the stage of setting the CG. Communication device B can transmit data using the periodic resource when receiving an activation command (activation command) from DCI transmitted through PDCCH. Further, the communication device B may skip transmission. When communication apparatus B receives the deactivation command (deactivation command) using DCI, CG becomes inactive (inactive).

By using the CG, since it is not necessary to receive a PDCCH every time transmission is performed, it is possible to avoid waste of PDCCH resources and reduce delay.

(concerning CG (CGs))

In the communication system according to the present embodiment, a plurality of active CGs may be supported. For example, since different resource settings are assumed between different multiple types of services, multiple CGs are supported.

For example, when the CG1 and the CG2 of type 1 are set for the user equipment 20 from the base station apparatus 10, the user equipment 20 can perform data transmission in accordance with the resource and the cycle designated by the CG1 and can perform data transmission in accordance with the resource and the cycle designated by the CG 2. Furthermore, multiple CGs of type 2 may also be supported.

The above example of the multiple CGs is an example in Uu (communication between the base station apparatus 10 and the user apparatus 20), but multiple CGs of type 1 and type 2 are also supported in sidelink (hereinafter, SL).

Hereinafter, embodiments 1 to 2 relating to detailed operation examples of a plurality of CGs in a sidelink will be described. Examples 1 to 2 are envisaged for application to NR-SL, but the application of examples 1 to 2 is not necessarily limited to NR-SL. Embodiments 1-2 may be applied to SL for LTE, and may also be applied to SL (or D2D) in communication systems other than NR and LTE.

(example 1)

Embodiment 1 is an example in which a plurality of cg (multiple cgs) of type 1 are set in the user apparatus 20. Example 1 was divided into example 1-1 and example 1-2. A resource allocation mode 1(resource allocation mode1) is described in embodiment 1-1, and a resource allocation mode 2(resource allocation mode2) is described in embodiment 1-2.

< example 1-1: resource allocation Pattern 1>

FIG. 7 is a timing chart for explaining embodiment 1-1. In S101, for example, the base station apparatus 10 transmits CG setting information (CG settings) of 1 or more CG from the base station apparatus 10 to the user apparatus 20A by RRC signaling (higher layer signaling). The setting information of each CG includes parameters indicating the resource (time resource or time/frequency resource) and the period (periodicity) that the user equipment 20A can use for SL transmission.

In addition, regarding the setting information of the plurality of CGs, the setting information of the plurality of CGs may be notified by 1 signaling message, or the setting information of the 1 CG may be notified by 1 signaling message. This also applies to the following embodiments.

In the user equipment 20A in which the RRC setting of one or more CGs is performed via S101, the one or more CGs are activated. Therefore, in S102, the user equipment 20A can perform PSCCH/PSCCH transmission using resources of each CG. "PSCCH/PSCCH-based transmission" is transmission of SCI through PSCCH, data through PSCCH, or simultaneous transmission of SCI in PSCCH and data in PSCCH.

User device 20B receives the data transmitted from user device 20A through the resources specified by the SCI.

In embodiment 1-1, there is a possibility that time resources overlap among a plurality of CGs set for the user apparatus 20A. The time resource overlapping is, for example, a case where the CG1 sets that the subframe 1 is periodically used, and the CG2 also sets that the subframe 1 is periodically used. Further, there is a possibility that the time and frequency resources overlap among the CGs set for the user apparatus 20A. The time resource overlap and the time/frequency resource overlap are collectively referred to as "resource overlap".

When the user apparatus 20A detects that the resources overlap among the plurality of CGs as described above, it determines which CG resource to select in accordance with the installation (UE implementation) of the user apparatus 20A.

In addition, when the user apparatus 20A detects that the resources overlap among the CGs as described above, the user apparatus may select the resources of 1 CG in accordance with the priority (priority) of the CGs. In this case, for example, the CG setting information transmitted from the base station apparatus 10 to the user apparatus 20 includes information on the priority of the CG. When the CG2 is higher priority than the CG1, the user device 20A selects, for example, a resource of the CG2 of high priority when the resources of the CG1 and the CG2 overlap.

In the example shown in fig. 7, the setting information transmitted to the user device 20A in S101 may be transmitted to the user device 20B, and the setting information for one or more CGs of the user device 20A may be set in the user device 20B. Thus, the user equipment 20B can grasp the resource of the data transmitted from the user equipment 20A, and can receive the data on the psch without receiving the SCI. Therefore, in this case, the user equipment 20A can perform PSCCH-less transmission (stand-alone psch transmission) only for PSCCH transmission.

In the configuration shown in fig. 7, the base station apparatus 10 may be replaced with a user apparatus 20C. In this case, the user equipment 20C transmits the setting information of one or more CGs to the user equipment 20A through RRC signaling (PC5-RRC) of the sidelink.

< examples 1 to 2: resource allocation Pattern 2>

FIG. 8 is a timing chart for explaining embodiment 1-2. In S201, for example, RRC signaling (higher layer signaling) of the PC5 is used to transmit setting information (CG configurations) of 1 or more CGs from the user apparatus 20A to the user apparatus 20B. The setting information of each CG includes parameters indicating the resource (time resource or time/frequency resource) and the period (periodicity) used by the user equipment 20A for SL transmission.

For example, as described in fig. 3, the user equipment 20A can select a resource used in SL transmission by a method of detecting an idle resource by sensing.

In S201, among the user apparatus 20A of PC5-RRC settings that transmitted one or more CGs and the user apparatus 20B of PC5-RRC settings that received one or more CGs from the user apparatus 20A, the one or more CGs become active. Therefore, in S202, the user equipment 20A performs PSCCH/PSCCH transmission using resources of each CG, and the user equipment 20B can perform PSCCH/PSCCH reception using the resources.

Since the user apparatus 20B has the CG settings, it is possible to grasp the resource of the data transmitted from the user apparatus 20A. Therefore, data can be received through the PSSCH without receiving SCI. That is, the user equipment 20A can transmit only PSCCH without PSCCH (standard PSCCH transmission).

In embodiment 1-2, there is a possibility that resources overlap between a plurality of CGs set by the user apparatus 20A to the user apparatus 20B.

When the user apparatus 20A and the user apparatus 20B detect that the resources overlap between the plurality of CGs as described above, they respectively determine which CG resource to select in accordance with the installation (UE implementation).

When the user device 20A and the user device 20B detect that resources overlap between a plurality of CGs as described above, 1 resource may be selected according to the priority (priority) of the CGs. In this case, for example, the setting information of the CG transmitted from the user apparatus 20A to the user apparatus 20B includes information of the priority of the CG. When the CG2 is higher in priority than the CG1, if the resources of the CG1 and the CG2 overlap, the user device 20A and the user device 20B select the resources of the CG2 with high priority, respectively, for example.

(example 2)

Next, example 2 is explained. Embodiment 2 is an example in which a plurality of cg (multiple cgs) of type 2 are set in the user apparatus 20. Example 2 was divided into example 2-1 and example 2-2. A resource allocation mode 1(resource allocation mode1) is described in embodiment 2-1, and a resource allocation mode 2(resource allocation mode2) is described in embodiment 2-2.

< example 2-1: resource allocation Pattern 1>

FIG. 9 is a timing chart for explaining embodiment 2-1. In S301, for example, the base station apparatus 10 transmits, to the user apparatus 20A, CG configuration information (CG configurations) of 1 or more CGs by RRC signaling (higher layer signaling). The setting information of each CG includes parameters indicating the resource (time resource or time/frequency resource) and the period (periodicity) that the user equipment 20A can use for SL transmission.

In the user equipment 20A in which the RRC setting of one or more CGs is performed in S301, the one or more CGs are inactivated.

In S302, when user apparatus 20A receives an activation command (activation command) for one or more CGs from base station apparatus 10, the one or more CGs become activated.

Therefore, in S303, the user equipment 20A can perform PSCCH/PSCCH transmission using the resources of each CG activated.

In S304, when the user apparatus 20A receives the deactivation command (deactivation command) for one or more CGs from the base station apparatus 10, the CG which has received the deactivation command (deactivation command) among the one or more CGs which have been activated becomes inactive. The transmission of PSCCH/PSCCH based on the resource to become the inactive CG is not performed.

The processing in the case where resources overlap among activated CGs is the same as that described in embodiment 1-1.

< example 2-1: details of activation/deactivation >

Hereinafter, a more detailed example concerning the activation/deactivation of CG in embodiment 2-1 is explained. Hereinafter, when the same applies to any one of the activation command and the deactivation command, the command will be referred to as "activation command/deactivation command".

The activation command/deactivation command is notified by any one of the following signals, for example. However, the following signals are merely examples, and the activation command/deactivation command may be notified by a signal other than the following signals.

DCI format;

the value of the DCI field dedicated to the activate/deactivate command;

RNTI that scrambles CRC given to DCI;

a special combination of values of existing DCI fields;

·CORESET；

a search space;

·MAC-CE。

when the DCI format is used, for example, the following processing can be performed: if the DCI of DCI format a is received, user device 20A determines that it is an activation command, and if the DCI of DCI format B is received, it determines that it is a deactivation command.

When the RNTI is used, for example, the following processing can be performed: if the user equipment 20A can decode DCI by RNTI-a, it is determined to be an activation command, and if the DCI can be decoded by RNTI-B, it is determined to be a deactivation command.

In the case of using CORESET or a search space, for example, the following processing can be performed: if the user device 20A receives DCI through a certain CORESET (or search space), it determines that it is an activation command, and if DCI is received through other CORESET (or search space), it determines that it is a deactivation command.

In the case of using the MAC-CE, the activation command/deactivation command can be discriminated using, for example, the value of a bit in the MAC-CE.

Further, which CG of the plurality of CGs is activated or deactivated may be notified by any one of the following signals. However, the following signals are merely examples, and which CG is activated or deactivated may be notified by a signal other than the following signals.

DCI format;

the value of the DCI field dedicated to the activate/deactivate command;

RNTI that scrambles CRC given to DCI;

a special combination of values of existing DCI fields;

·CORESET；

a search space;

·MAC-CE。

further, in the activation command/deactivation command, information indicating which CG of the plurality of CGs is activated or deactivated may be included.

Note that the 1 activation command/1 deactivation command for all or a part of the set CGs, that is, a plurality of CGs, may be notified by any of the following signals, for example. However, the following signals are merely examples, and signals other than the following signals may be used.

DCI format;

the value of the DCI field dedicated to the activate/deactivate command;

RNTI that scrambles CRC given to DCI;

a special combination of values of existing DCI fields;

·CORESET；

a search space;

·MAC-CE。

< example 2-1: specific examples of activation/deactivation notification >

For example, DCI has a specific DCI field for an activation command/deactivation command defined as a "CG type 2 setting field" having a length of 3 bits. Each of the 3 bits corresponds to 1 CG setting. In this case, for example, in the case where the CG type 2 setting field is 011, the CG setting 1 and the CG setting 2 are activated if they are inactive, and are deactivated if the CG setting 0 is active.

For example, each value represented by the 3 bits may be associated with a certain setting. In this case, for example, the values 0, 1, 2, 3, 4, 5, 6, and 7 may be associated with "deactivate all CG settings, deactivate CG settings 0, deactivate CG settings 1, deactivate CG settings 2, activate CG settings 0, activate CG settings 1, activate CG settings 2, and activate all CG settings", respectively. In this example, for example, in the case where the CG type 2 setting field is 011, if the CG is set to active 2, it is deactivated. Further, in the case where the CG type 2 setting field is 111, if all the CGs are inactive, all the CGs are activated.

In addition, the above-described contents explained in embodiment 2-1 can also be applied to the CG type 2 of NR-Uu.

In the example shown in fig. 9, the setting information transmitted to the user device 20A in S301, the activation command transmitted to the user device 20A in S302, and the deactivation command transmitted to the user device 20A in S304 may be transmitted to the user device 20B, and the setting information for one or more CGs of the user device 20A may be set in the user device 20B, and activation/deactivation may be performed.

Thus, the user equipment 20B can grasp the resource of the data transmitted from the user equipment 20A, and can receive the data on the psch without receiving the SCI. Therefore, in this case, the user equipment 20A can perform PSCCH-less psch transmission (stand-alone psch transmission) only psch transmission.

In the configuration shown in fig. 9, the base station apparatus 10 may be replaced with a user apparatus 20C. In this case, the user equipment 20C transmits the setting information of one or more CGs to the user equipment 20A through RRC signaling (PC5-RRC) of the sidelink. Further, the activation command/deactivation command is transmitted using SCI, for example.

< examples 2 to 2: resource allocation Pattern 2>

FIG. 10 is a timing chart for explaining embodiment 2-2. In S401, for example, the user equipment 20A transmits CG configuration information (CG configurations) of 1 or more CG from the user equipment 20A to the user equipment 20B by RRC signaling (higher layer signaling) of the PC 5. The setting information of each CG includes parameters indicating the resource (time resource or time/frequency resource) and the period (periodicity) used by the user equipment 20A for SL transmission.

For example, as described in fig. 3, the user equipment 20A can select a resource used in SL transmission by a method of detecting an idle resource by sensing.

In S401, among the user equipment 20A of PC5-RRC settings that transmitted one or more CGs and the user equipment 20B of PC5-RRC settings that received one or more CGs from the user equipment 20A, the one or more CGs become active.

In S402, when the user apparatus 20A transmits an activation command for one or more CGs to the user apparatus 20B, the one or more CGs become active in the user apparatus 20A and the user apparatus 20B.

Therefore, in S403, the user equipment 20A can perform PSCCH/PSCCH transmission using resources of each CG activated. Since the user apparatus 20B has the CG settings, it is possible to grasp the resource of the data transmitted from the user apparatus 20A. Therefore, data can be received through the PSSCH without receiving SCI. That is, the user equipment 20A can transmit PSCCH-less PSCCH transmission only (standard PSCCH transmission).

In S404, the user apparatus 20A transmits a deactivation command for the one or more CGs to the user apparatus 20B, and when the user apparatus 20B receives the deactivation command, among the user apparatus 20A and the user apparatus 20B, a CG that is an object of the deactivation command among the one or more CGs that have been activated becomes inactive. The transmission of PSCCH/PSCCH based on the resource to become the inactive CG is not performed.

The processing in the case where resources overlap among activated CGs is the same as that described in embodiment 1-2.

< examples 2 to 2: details of activation/deactivation >

Hereinafter, a more detailed example concerning the activation/deactivation of CG in embodiment 2-2 is explained. Hereinafter, when the same applies to the activation command and the deactivation command, they will be referred to as "activation command/deactivation command".

The activation command/deactivation command is notified by any one of the following signals, for example. However, the following signals are merely examples, and the activation command/deactivation command may be notified by a signal other than the following signals.

SCI format;

the value of the SCI field dedicated to activate/deactivate commands;

RNTI that scrambles CRC assigned to SCI;

a special combination of values of the existing SCI field;

·MAC-CE。

when the SCI format is used, for example, the following processing can be performed: user device 20B determines it to be an activate command if it receives an SCI of SCI format a and a deactivate command if it receives an SCI of SCI format B.

When the RNTI is used, for example, the following processing can be performed: user device 20B may determine it to be an activate command if it is able to decode SCI via RNTI-A, and a deactivate command if it is able to decode SCI via RNTI-B.

In the case of using the MAC-CE, the activation command/deactivation command can be discriminated using, for example, the value of a bit in the MAC-CE.

Further, which CG of the plurality of CGs is activated or deactivated may be notified by any one of the following signals. However, the following signals are merely examples, and which CG is activated or deactivated may be notified by a signal other than the following signals.

SCI format;

the value of the SCI field dedicated to activate/deactivate commands;

RNTI that scrambles CRC assigned to SCI;

a special combination of values of the existing SCI field;

·MAC-CE。

further, in the activation command/deactivation command, information indicating which CG of the plurality of CGs is activated or deactivated may be included.

Note that the 1 activation command/1 deactivation command for all or a part of the set CGs, that is, a plurality of CGs may be notified by any of the following signals, for example. However, the following signals are merely examples, and 1 activation command/1 deactivation command for all CGs or a plurality of CGs may be notified by a signal other than the following signals.

SCI format;

the value of the SCI field dedicated to activate/deactivate commands;

RNTI that scrambles CRC assigned to SCI;

a special combination of values of the existing SCI field;

·MAC-CE。

< examples 2 to 2: specific examples of activation/deactivation notification >

For example, in SCI, as a "CG type 2 setting field" of 3 bit length, an SCI field dedicated to an activation command/deactivation command is specified. For example, each bit corresponds to 1 CG setting. In this case, for example, in the case where the CG type 2 setting field is 011, the CG setting 1 and the CG setting 2 are activated if they are inactive, and are deactivated if the CG setting 0 is active.

For example, each value represented by the 3 bits may be associated with a certain setting. In this case, for example, the values 0, 1, 2, 3, 4, 5, 6, and 7 may be associated with "deactivate all CG settings, deactivate CG settings 0, deactivate CG settings 1, deactivate CG settings 2, activate CG settings 0, activate CG settings 1, activate CG settings 2, and activate all CG settings", respectively. In each of the user device 20A and the user device 20B, for example, in the case where the CG type 2 setting field is 011, if the CG is set to 2 as active, it is deactivated. Further, in the case where the CG type 2 setting field is 111, if all the CGs are inactive, all the CGs are activated.

Embodiments 1 to 2 contemplate the case where a plurality of activated CGs are supported in either of type 1 or type 2, but a plurality of CGs may be applied in either of type 1 and type 2. Alternatively, only a single activated CG is supported in each CG type, but it is also possible to activate each CG at the same time, thereby implementing a plurality of activated CGs. For example, CG1 of type 1 is set and CG2, CG3 of type 2 are set in the user apparatus 20, and in the case where an activation command is received for the CG2, in the user apparatus 20, a plurality of CGs (CG1 and CG2) of activation are implemented. Here, when resources of the CG are overlapped, the methods (UE implementation) described in embodiments 1 and 2, selection according to priority, and the like can be applied.

In any of embodiments 1 and 2 described above, a plurality of activated CGs can be used for the SL.

(device construction)

Next, a functional configuration example of the base station apparatus 10 and the user apparatus 20 that execute the processing and operation described above will be described. The base station apparatus 10 and the user apparatus 20 include all the functions in the above embodiments. However, the base station apparatus 10 and the user apparatus 20 may have only some of the entire functions in the embodiments.

< base station apparatus 10 >

Fig. 11 is a diagram showing an example of the functional configuration of the base station apparatus 10. As shown in fig. 11, the base station apparatus 10 includes a transmission unit 110, a reception unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in fig. 11 is merely an example. The names of the function sections and the function division may be arbitrary as long as the operation of the embodiment of the present invention can be performed.

The transmission unit 110 includes a function of generating a signal to be transmitted to the user apparatus 20 and transmitting the signal wirelessly. The receiving unit 120 includes a function of receiving various signals transmitted from the user apparatus 20 and acquiring, for example, higher layer information from the received signals. Further, the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signal, DL reference signal, RRC message, and the like to the user equipment 20.

The setting unit 130 stores preset setting information and various kinds of setting information transmitted to the user device 20 in a storage device provided in the setting unit 130, and reads the setting information and various kinds of setting information from the storage device as necessary. The content of the setting information is, for example, information on the setting of communication with D2D. The control unit 140 controls the base station apparatus 10. The transmission unit 110 may include a function unit related to signal transmission in the control unit 140, and the reception unit 120 may include a function unit related to signal reception in the control unit 140.

< user device 20 >

Fig. 12 is a diagram showing an example of the functional configuration of the user apparatus 20. As shown in fig. 12, the user device 20 includes a transmission unit 210, a reception unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in fig. 12 is merely an example. The names of the function sections and the function division may be arbitrary as long as the operation of the embodiment of the present invention can be performed.

The transmission unit 210 generates a transmission signal from the transmission data and wirelessly transmits the transmission signal. The receiving unit 220 receives various signals wirelessly and acquires a signal of a higher layer from the received signal of the physical layer. The reception unit 220 also has a function of receiving NR-PSS, NR-SSS, NR-PBCH, DL/UL/SL control signals, RRC messages, reference signals, and the like transmitted from the base station apparatus 10. For example, as D2D communication, the transmitter 210 transmits PSCCH (Physical downlink Control Channel), PSCCH (Physical downlink Shared Channel), PSDCH (Physical downlink Discovery Channel), PSBCH (Physical downlink Broadcast Channel), etc. to another user equipment 20, and the receiver 220 receives PSCCH, PSDCH, PSBCH, etc. from another user equipment 20.

Setting unit 230 stores various setting information received by receiving unit 220 from base station apparatus 10 or user apparatus 20 in the storage device provided in setting unit 230, and reads the information from the storage device as necessary. The setting unit 230 also stores preset setting information. The content of the setting information is, for example, information on the setting of communication with D2D. The control unit 240 controls the user apparatus 20. The transmission unit 210 may include a function unit related to signal transmission in the control unit 240, and the reception unit 220 may include a function unit related to signal reception in the control unit 240.

(hardware construction)

The block diagrams (fig. 11 and 12) used in the description of the above embodiments show blocks in units of functions. These functional blocks (components) are realized by any combination of at least one of hardware and software. Note that the method of implementing each functional block is not particularly limited. That is, each functional block may be implemented by one device that is physically or logically combined, or may be implemented by two or more devices that are physically or logically separated and that are directly or indirectly (for example, wired or wireless) connected and implemented by these plural devices. The functional blocks may also be implemented by a combination of software and one or more of the above-described devices.

The functions include, but are not limited to, determination, decision, judgment, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, establishment, comparison, assumption, expectation, view, broadcast (broadcasting), notification (notification), communication (communicating), forwarding (forwarding), configuration (configuring), reconfiguration (reconfiguring), allocation (allocating, mapping), assignment (assigning), and the like. For example, a function block (a configuration unit) that functions transmission is referred to as a transmission unit (transmitter) or a transmitter (transmitter). In short, as described above, the implementation method is not particularly limited.

For example, the base station apparatus 10, the user apparatus 20, and the like according to one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 13 is a diagram showing an example of the hardware configuration of the base station apparatus 10 and the user apparatus 20 according to the embodiment of the present disclosure. The base station apparatus 10 and the user apparatus 20 may be configured as a computer apparatus physically including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

In the following description, the term "device" may be replaced with "circuit", "device", "unit", and the like. The hardware configuration of the base station apparatus 10 and the user apparatus 20 may include 1 or a plurality of apparatuses shown in the drawings, or may not include some of the apparatuses.

The functions of the base station apparatus 10 and the user apparatus 20 are realized by the following methods: when predetermined software (program) is read into hardware such as the processor 1001 and the storage device 1002, the processor 1001 performs an operation to control communication of the communication device 1004 or at least one of reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.

The processor 1001 operates, for example, an operating system to control the entire computer. The processor 1001 may be a Central Processing Unit (CPU) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, the control unit 140, the control unit 240, and the like may be implemented by the processor 1001.

The processor 1001 reads out a program (program code), a software module, data, or the like from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to the program. As the program, a program that causes a computer to execute at least a part of the operations described in the above embodiments is used. For example, the control unit 140 of the base station apparatus 10 shown in fig. 11 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001. For example, the control unit 240 of the user device 20 shown in fig. 12 may be realized by a control program stored in the storage device 1002 and operated by the processor 1001. Although the various processes described above are executed by 1 processor 1001, the various processes described above may be executed simultaneously or sequentially by 2 or more processors 1001. The processor 1001 may also be mounted by more than one chip. In addition, the program may also be transmitted from the network via a telecommunication line.

The storage device 1002 is a computer-readable recording medium, and may be configured by at least one of a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. The storage 1002 may also be referred to as a register, cache, main memory (primary storage), or the like. The storage device 1002 can store a program (program code), a software module, and the like that can be executed to implement the communication method according to one embodiment of the present disclosure.

The auxiliary storage device 1003 is a computer-readable recording medium, and may be constituted by at least one of an optical disk such as a CD-rom (compact Disc rom), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact Disc, a digital versatile Disc, a Blu-ray (registered trademark) Disc, a smart card, a flash memory (for example, a card, a stick, a Key drive), a Floppy (registered trademark) Disc, a magnetic stripe, and the like.

The communication device 1004 is hardware (a transmitting/receiving device) for performing communication between computers via at least one of a wired network and a wireless network, and may be referred to as a network device, a network controller, a network card, a communication module, or the like. Communication apparatus 1004 may be configured to include a high-Frequency switch, a duplexer, a filter, a Frequency synthesizer, and the like, for example, in order to realize at least one of Frequency Division Duplexing (FDD) and Time Division Duplexing (TDD). For example, a transmitting/receiving antenna, an amplifying unit, a transmitting/receiving unit, a transmission line interface, and the like may be realized by the communication device 1004. The transmitter and receiver may be physically or logically separated from each other.

The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a key, a sensor, and the like) that receives an input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, or the like) that outputs to the outside. The input device 1005 and the output device 1006 may be integrally formed (for example, a touch panel).

Further, the processor 1001 and the storage device 1002 are connected to each other via a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses for each device.

The base station apparatus 10 and the user apparatus 20 may be configured to include hardware such as a microprocessor, a Digital Signal Processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array), or the like, and a part or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may also be implemented using at least one of these hardware.

(summary of the embodiment)

In the present embodiment, there is provided a user device described in at least the following items.

(item 1)

A user device, having:

a reception unit that receives one or more pieces of permitted setting information from the base station apparatus; and

a transmitting section that transmits a signal of the sidelink using a resource specified by the one or more grants, the one or more grants being active.

(item 2)

A user device, wherein,

the user device has a transmission unit that transmits one or more pieces of setting information of the license to other user devices,

the one or more grants may be active, and the transmitting unit may transmit a sidelink signal to the other user equipment using a resource specified by the one or more grants.

(item 3)

A user device, wherein,

the user device has a receiving section that receives setting information of one or more permissions from other user devices,

the one or more grants may be active, and the receiving unit may receive a sidelink signal using a resource specified by the one or more grants.

(item 4)

A user device, having:

a reception unit that receives one or more pieces of permitted setting information from the base station apparatus;

a control unit that activates all or a part of the one or more grants when the receiving unit receives an activation command from the base station device, and deactivates all or a part of the one or more grants when the receiving unit receives a deactivation command from the base station device; and

and a transmission unit that transmits a signal of the side link using the resource specified by the activated grant.

(item 5)

A user device, wherein,

a transmitting unit that transmits one or more pieces of permitted setting information to another user apparatus; and

a control unit that activates all or a part of the one or more permissions when the transmission unit transmits an activation command to the other user apparatus, and deactivates all or a part of the one or more permissions when the transmission unit transmits a deactivation command to the other user apparatus,

the transmission section transmits a signal of a side link using a resource specified by the activated grant.

(item 6)

A user device, wherein,

a receiving unit that receives setting information of one or more permissions from another user apparatus; and

a control unit that activates all or a part of the one or more licenses when the receiving unit receives an activation command from the other user device, and deactivates all or a part of the one or more licenses when the receiving unit receives a deactivation command from the other user device,

the receiving section receives a signal of a side link using a resource specified by the activated license.

The technique according to any one of items 1 to 6, wherein support of configuration permission for a plurality of activations can be realized in a side link.

(supplement to embodiment)

While the embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and various modifications, alternatives, and substitutions will be apparent to those skilled in the art. Although specific numerical examples are used to facilitate understanding of the present invention, these numerical values are merely examples and any appropriate values may be used unless otherwise specified. The distinction of items in the above description is not essential to the present invention, and items described in two or more items may be used in combination as necessary, or items described in one item may be applied to items described in another item (as long as there is no contradiction). The boundaries of the functional units or the processing units in the functional block diagrams do not necessarily correspond to the boundaries of the physical components. The operation of the plurality of functional units may be performed by one physical component, or the operation of one functional unit may be performed by a plurality of physical components. As for the processing procedure described in the embodiment, the order of processing may be changed without contradiction. For convenience of explanation of the processing, the base station apparatus 10 and the user apparatus 20 have been explained using functional block diagrams, but such apparatuses may also be realized by hardware, by software, or by a combination thereof. Software that operates by a processor provided in the base station apparatus 10 according to the embodiment of the present invention and software that operates by a processor provided in the user apparatus 20 according to the embodiment of the present invention may be stored in a Random Access Memory (RAM), a flash memory, a Read Only Memory (ROM), an EPROM, an EEPROM, a register, a hard disk (HDD), a removable disk, a CD-ROM, a database, a server, or any other suitable storage medium.

Note that the information is not limited to the form and embodiment described in the present disclosure, and may be notified by other methods. For example, the notification of the Information may be implemented by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast Information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof).

The forms/embodiments described in the present disclosure can also be applied to LTE (Long Term Evolution), LTE-a (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4 generation mobile communication system: fourth generation mobile communication system), 5G (5 generation mobile communication system: fifth generation mobile communication system), FRA (Future Radio Access), NR (new Radio: new air interface), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband: Ultra Mobile Broadband), IEEE 802.11(Wi-Fi (registered trademark)), IEEE 802.16(WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-wide band), Bluetooth (registered trademark), a system using other appropriate systems, and a next generation system extended accordingly. Furthermore, a plurality of systems (for example, a combination of 5G and at least one of LTE and LTE-a) may be combined and applied.

The order of the processing procedures, sequences, flows, and the like of the respective forms and embodiments described in this specification may be changed without departing from the scope of the invention. For example, elements of the various steps are presented in the order shown using the examples for the method described in the present disclosure, and are not limited to the specific order presented.

In the present specification, the specific operation performed by the base station apparatus 10 may be performed by an upper node (upper node) thereof in some cases. It is apparent that in a network including one or more network nodes (network nodes) having the base station apparatus 10, various operations to be performed for communication with the user apparatus 20 may be performed by at least one of the base station apparatus 10 and a network node other than the base station apparatus 10 (for example, MME, S-GW, or the like is considered, but not limited thereto). In the above, the case where there is one network node other than the base station apparatus 10 is exemplified, but the other network node may be a combination of a plurality of other network nodes (e.g., MME and S-GW).

Information, signals, and the like described in the present disclosure can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). Or may be input or output via a plurality of network nodes.

The input or output information and the like may be stored in a specific location (for example, a memory) or may be managed using a management table. The input or output information and the like may be rewritten, updated, or appended. The output information and the like may also be deleted. The entered information and the like may also be transmitted to other devices.

The determination in the present disclosure may be made by a value (0 or 1) represented by 1 bit, may be made by a Boolean value (Boolean: true or false), and may be made by comparison of values (for example, comparison with a predetermined value).

Software, whether referred to as software, firmware, middleware, microcode, hardware description languages, or by other names, should be construed broadly to mean commands, command sets, code segments, program code, programs (routines), subroutines, software modules, applications, software packages, routines, subroutines (subroutines), objects, executables, threads of execution, procedures, functions, and the like.

Further, software, commands, information, and the like may be transmitted and received via a transmission medium. For example, where software is transmitted from a web page, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these is included within the definition of transmission medium.

Information, signals, and the like described in this disclosure may also be represented using any of a variety of different technologies. For example, data, instructions, commands (commands), information, signals, bits, symbols (symbols), chips (chips), etc., that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or photons, or any combination thereof.

Further, terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and the symbol may be a signal (signaling). Further, the signal may also be a message. Further, a Component Carrier (CC) may also be referred to as a Carrier frequency, a cell, a frequency Carrier, and the like.

The terms "system" and "network" as used in this disclosure may be used interchangeably.

Further, information, parameters, and the like described in the present disclosure may be expressed using absolute values, may be expressed using relative values to predetermined values, and may be expressed using other corresponding information. For example, the radio resource may also be indicated by an index.

The names used for the above parameters are in no way limiting. Further, the numerical expression and the like using these parameters may be different from those explicitly disclosed in the present disclosure. Since various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, the various names assigned to these various channels and information elements are not limiting in any respect.

In the present disclosure, terms such as "Base Station (BS)", "wireless Base Station", "Base Station apparatus", "fixed Station (fixed Station)", "NodeB", "enodeb (enb)", "gbnodeb (gnb)", "access point (access point)", "transmission point)", "reception point (reception point)", "reception point (transmission/reception point)", "cell", "sector", "cell group", "carrier", "component carrier" may be used interchangeably. A base station may also be referred to by terms such as macrocell, smallcell, femtocell, picocell, and the like.

A base station can accommodate one or more (e.g., 3) cells. When a base station accommodates a plurality of cells, the entire coverage area of the base station can be divided into a plurality of smaller areas, and each smaller area can also be provided with a communication service by a base station subsystem (e.g., an indoor small Radio Head (RRH) — "cell" or "sector"), which is a term referring to a part or the entire coverage area of at least one of the base station and the base station subsystem that performs a communication service within its coverage area.

In the present disclosure, terms such as "Mobile Station (MS)", "User terminal (User terminal)", "User Equipment (UE)", "terminal" and the like may be used interchangeably.

With respect to a mobile station, those skilled in the art will also sometimes refer to a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent (user agent), a mobile client, a client, or some other suitable terminology.

At least one of the base station and the mobile station may also be referred to as a transmitting apparatus, a receiving apparatus, a communication apparatus, or the like. At least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, or the like. The moving body may be a vehicle (e.g., an automobile, an airplane, etc.), may be a moving body that moves in an unmanned manner (e.g., an unmanned aerial vehicle, an autonomous automobile, etc.), or may be a robot (manned or unmanned). At least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

In addition, the base station in the present disclosure may also be replaced with a user terminal. For example, the various aspects/embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between a plurality of user terminals 20 (for example, communication may also be referred to as D2D (Device-to-Device), V2X (Vehicle-to-all system), or the like). In this case, the user apparatus 20 may have the functions of the base station apparatus 10 described above. Terms such as "uplink" and "downlink" may be replaced with terms (e.g., "side") corresponding to inter-terminal communication. For example, the uplink channel, the downlink channel, and the like may be replaced with the side channel.

Likewise, the user terminal in the present disclosure may also be replaced with a base station. In this case, the base station may have a configuration having the functions of the user terminal described above.

Terms such as "determining" and "determining" used in the present disclosure may include various operations. The terms "determining" and "decision" may include, for example, a case where the determination (judging), calculation (calculating), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry) (for example, a search in a table, a database, or another data structure), and confirmation (ascertaining) are regarded as being performed. The "determination" and "decision" may include a case where the reception (e.g., reception) or transmission (e.g., transmission), input (input), output (output), and access (e.g., access to data in the memory) are regarded as the "determination" and "decision". The "determination" and "decision" may include cases in which the "determination" and "decision" are considered to be performed, for example, when the solution (resolving), selection (selecting), selection (breathing), establishment (evaluating), and comparison (comparing) are performed. That is, "determination" and "determination" may include a case where "determination" and "determination" are performed in any operation. Further, "judgment (decision)" may be replaced with "assumption", "expectation", "view (linkage)" or the like.

The term "connected" or "coupled" or any variation of these terms is intended to mean that 2 or more elements are directly or indirectly connected or coupled to each other, and may include 1 or more intermediate elements between 2 elements that are "connected" or "coupled" to each other. The combination or connection between the elements may be physical, logical, or a combination thereof. For example, "connect" may also be replaced with "Access". As used in this disclosure, 2 elements may be considered to be "connected" or "coupled" to each other by using at least one of one or more wires, cables, and printed electrical connections, and by using electromagnetic energy having wavelengths in the radio frequency domain, the microwave domain, and the optical (both visible and invisible) domain, or the like, as some non-limiting and non-inclusive examples.

The reference signal may also be referred to as rs (reference signal) for short, and may also be referred to as Pilot (Pilot) according to the applied standard.

As used in this disclosure, a statement "according to" is not intended to mean "solely according to" unless explicitly stated otherwise. In other words, the statement "according to" means both "according to only" and "according to at least".

Any reference to an element using the designations "first", "second", etc. used in this disclosure is not intended to limit the number or order of such elements. These designations can be used in the present disclosure as a convenient method of distinguishing between two or more elements. Thus, references to a first element and a second element do not imply that only two elements can be taken or that the first element must precede the second element in any manner.

The "unit" in the configuration of each device described above may be replaced with a "section", "circuit", "device", or the like.

In the present disclosure, when the terms "including", "containing" and variations thereof are used, these terms are meant to be inclusive in the same manner as the term "having". Also, the term "or" used in the present disclosure means not exclusive or.

A radio frame may also be made up of one or more frames in the time domain. One or more individual frames in the time domain may also be referred to as subframes. The subframe may further be composed of one or more slots in the time domain. The subframe may also be a fixed time length (e.g., 1ms) independent of a parameter set (numerology).

The parameter set may also be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. The parameter set may also indicate, for example, at least one of SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, specific windowing processing performed by the transceiver in the Time domain, and the like.

The slot may be formed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, or the like) in the time domain. The time slot may also be a time unit based on a parameter set.

A timeslot may also contain multiple mini-slots. Each mini-slot may also be made up of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be made up of fewer symbols than a slot. The PDSCH (or PUSCH) transmitted in a unit of time greater than the mini slot may also be referred to as PDSCH (or PUSCH) mapping type a. PDSCH (or PUSCH) transmitted using mini-slots may also be referred to as PDSCH (or PUSCH) mapping type B.

The radio frame, subframe, slot, mini-slot and symbol all represent a unit of time when a signal is transmitted. Radio frames, subframes, slots, mini-slots, and symbols may also use other designations corresponding thereto.

For example, 1 subframe may be referred to as a Transmission Time Interval (TTI), a plurality of consecutive subframes may be referred to as TTIs, and 1 slot or 1 mini-slot may be referred to as a TTI. That is, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, may be a period shorter than 1ms (for example, 1-13 symbols), or may be a period longer than 1 ms. The unit indicating TTI may be referred to as a slot, a mini slot, or the like, instead of a subframe.

Here, the TTI refers to, for example, the minimum time unit of scheduling in wireless communication. For example, in the LTE system, the base station performs scheduling for allocating radio resources (frequency bandwidth, transmission power, and the like that can be used by each user equipment 20) to each user equipment 20 in units of TTIs. In addition, the definition of TTI is not limited thereto.

The TTI may be a transmission time unit such as a channel-coded data packet (transport block), code block, or code word, or may be a processing unit such as scheduling or link adaptation. When a TTI is assigned, the time interval (for example, the number of symbols) to which the transport block, code word, and the like are actually mapped may be shorter than the TTI.

When 1 slot or 1 mini-slot is referred to as TTI, 1 or more TTI (i.e., 1 or more slot or 1 or more mini-slot) may be the minimum time unit for scheduling. Further, the number of slots (the number of mini slots) constituting the minimum time unit of the schedule may be controlled.

The TTI having a time length of 1ms may also be referred to as a normal TTI (TTI in LTE Rel.8-12), a normal TTI, a long TTI, a normal subframe, a long subframe, a slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI, a shortened subframe, a short subframe, a mini-slot, a sub-slot, a slot, etc.

In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be replaced with a TTI having a time length exceeding 1ms, and a short TTI (e.g., a shortened TTI, etc.) may be replaced with a TTI having a TTI length smaller than that of the long TTI and equal to or longer than 1 ms.

A Resource Block (RB) may be a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in the RB is independent of the parameter set, and may be the same, for example, 12. The number of subcarriers included in the RB may also be decided according to the parameter set.

The time domain of the RB may include one or more symbols, and may have a length of 1 slot, 1 mini-slot, 1 subframe, or 1 TTI. The 1TTI, 1 subframe, and the like may be configured by one or more resource blocks.

In addition, one or more RBs may also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB peers, and so on.

In addition, a Resource block may also be composed of one or more Resource Elements (REs). For example, the 1RE may be a radio resource region of 1 subcarrier and 1 symbol.

The Bandwidth Part (BWP: Bandwidth Part) (may also be referred to as partial Bandwidth, etc.) may also indicate a subset of consecutive common RBs (common resource blocks) for a certain parameter set in a certain carrier. Here, the common RB may also be determined by an index of an RB with reference to a common reference point of the carrier. PRBs may be defined by a certain BWP, or may be numbered within the BWP.

The BWP may include UL BWP (UL BWP) and DL BWP (DL BWP). One or more BWPs may also be set within 1 carrier for the UE.

At least one of the set BWPs may be active (active), or the UE may not be assumed to transmit and receive a predetermined signal/channel outside the active BWP. In addition, "cell", "carrier", and the like in the present disclosure may also be replaced with "BWP".

The above-described structures of radio frames, subframes, slots, mini-slots, symbols, and the like are merely examples. For example, the structure of the number of subframes included in the radio frame, the number of slots per subframe or radio frame, the number of mini-slots included in a slot, the number of symbols and RBs included in a slot or mini-slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the Cyclic Prefix (CP) length, and the like can be variously changed.

In the present disclosure, for example, in the case where articles are added as a result of translation as in a, an, and the in english, the present disclosure may also include the case where nouns following these articles are plural forms.

In the present disclosure, the phrase "a and B are different" may also mean "a and B are different from each other". The term "A and B are different from C" may be used. The terms "separate", "coupled", and the like may also be construed as "different" in a similar manner.

The aspects and embodiments described in the present disclosure may be used alone or in combination, or may be switched depending on execution. Note that the notification of the predetermined information is not limited to be performed explicitly (for example, notification of "X") but may be performed implicitly (for example, notification of the predetermined information is not performed).

In the present disclosure, the sidelink communication is an example of direct communication between terminals. SCI is an example of control information for direct communication between terminals. A time slot is an example of a predetermined time domain interval.

While the present disclosure has been described in detail, it should be apparent to those skilled in the art that the present disclosure is not limited to the embodiments described in the present disclosure. The present disclosure can be implemented as modifications and alterations without departing from the spirit and scope of the present disclosure as defined by the claims. Accordingly, the disclosure is intended to be illustrative, and not limiting.

Description of the reference symbols

10: a base station device;

110: a transmission unit;

120: a receiving section;

130: a setting unit;

140: a control unit;

20: a user device;

210: a transmission unit;

220: a receiving section;

230: a setting unit;

240: a control unit;

1001: a processor;

1002: a storage device;

1003: a secondary storage device;

1004: a communication device;

1005: an input device;

1006: and an output device.