Data transmission method, terminal equipment and network equipment

文档序号:1410053 发布日期:2020-03-06 浏览:22次 中文

阅读说明:本技术 传输数据的方法、终端设备和网络设备 (Data transmission method, terminal equipment and network equipment ) 是由 唐海 于 2017-09-29 设计创作,主要内容包括:本申请实施例提供了一种传输数据的方法、终端设备和网络设备,能够降低终端设备盲检PDCCH的复杂度,该方法包括:终端设备接收网络设备发送的时隙格式指示SFI;所述终端设备根据所述SFI,确定一时间单元内的时隙结构和所述时隙结构所适用的时间长度中的至少一项;所述终端设备根据所述SFI检测物理下行控制信道PDCCH。(The embodiment of the application provides a data transmission method, terminal equipment and network equipment, which can reduce the complexity of blind detection of a PDCCH (physical downlink control channel) by the terminal equipment, and the method comprises the following steps: the terminal equipment receives a time Slot Format Indication (SFI) sent by the network equipment; the terminal equipment determines at least one of a time slot structure in a time unit and the applicable time length of the time slot structure according to the SFI; and the terminal equipment detects a Physical Downlink Control Channel (PDCCH) according to the SFI.)

A method of transmitting data, comprising:

the terminal equipment receives a time Slot Format Indication (SFI) sent by the network equipment;

the terminal equipment determines at least one of a time slot structure in a time unit and the applicable time length of the time slot structure according to the SFI;

and the terminal equipment detects a Physical Downlink Control Channel (PDCCH) according to the SFI.

The method of claim 1, wherein the time unit is a time slot.

The method of claim 2, wherein the SFI is configured to indicate number information of downlink symbols and/or number information of uplink symbols included in one timeslot, and the determining, by the terminal device, at least one of a timeslot structure in a time unit and a time length to which the timeslot structure is applicable according to the SFI comprises:

the terminal equipment determines M symbols starting from a first symbol in a time slot as time domain positions for downlink transmission, wherein M is the number of the downlink symbols, and M is an integer greater than or equal to 0; and/or

The terminal device determines N symbols from the last symbol to the front in a time slot as time domain positions for uplink transmission, wherein N is the number of the uplink symbols, and N is an integer greater than or equal to 0.

The method of claim 3, wherein the detecting, by the terminal device, the Physical Downlink Control Channel (PDCCH) according to the SFI comprises:

the terminal device detects the PDCCH on the M symbols starting from the first symbol.

The method of claim 2, wherein the SFI is configured to indicate a slot structure index, and wherein the determining, by the terminal device, at least one of a slot structure in a time unit and a time length applicable to the slot structure according to the SFI comprises:

and the terminal equipment determines a time slot structure in one time slot according to the time slot structure index and a first corresponding relation, wherein the first corresponding relation is the corresponding relation between the time slot structure index and the time slot structure.

The method according to any of claims 2 to 5, wherein the SFI comprises information of the number of timeslots to which the timeslot structure is applicable.

The method of any one of claims 2 to 5, wherein the determining, by the terminal device, at least one of the slot structure in a time unit and the applicable time length of the slot structure according to the SFI comprises:

and the terminal equipment determines the number of the time slots applicable to the time slot structure according to the scrambling mode adopted by the downlink control message DCI for bearing the SFI and a second corresponding relationship, wherein the second corresponding relationship is the corresponding relationship between the scrambling mode adopted by the DCI for bearing the SFI and the number of the time slots applicable to the time slot structure.

The method according to claim 7, wherein the scrambling scheme adopted by the DCI comprises a mask and/or a Radio Network Temporary Identity (RNTI) adopted for scrambling the DCI.

The method according to any of claims 6 to 8, wherein the detecting, by the terminal device, a physical downlink control channel, PDCCH, according to the SFI comprises:

the terminal device detects a Physical Downlink Control Channel (PDCCH) according to the time slot structure in K time slots starting from a current time slot or L time slots after the current time slot, wherein K is the number of the time slots applicable to the time slot structure, L is an integer greater than or equal to 1, and K is an integer greater than or equal to 1.

The method of claim 1, wherein the time unit is a transmission period for transmitting DCI carrying SFI, and wherein the transmission period comprises a plurality of slots.

The method of claim 10, wherein the SFI is configured to indicate a slot structure corresponding to each slot in a transmission period.

The method of claim 11, wherein the SFI includes information on the number of downlink symbols and/or information on the number of uplink symbols included in each timeslot in one transmission period, and wherein the determining, by the terminal device, at least one of a timeslot structure in a time unit and a time length applicable to the timeslot structure according to the SFI includes:

the terminal device determines M symbols starting from a first symbol in each time slot as a time domain position for downlink transmission in each time slot, wherein M is the number of downlink symbols in each time slot, and M is an integer greater than or equal to 0; and/or

And the terminal equipment determines N symbols from the last symbol to the front in each time slot as the time domain position for uplink transmission in each time slot, wherein N is the number of uplink symbols in each time slot, and N is an integer greater than or equal to 0.

The method of claim 11, wherein the SFI includes a slot structure index of each slot in one transmission period, the slot structure index and the slot structure have a third correspondence, and the determining, by the terminal device, at least one of a slot structure in a time unit and a time length applicable to the slot structure according to the SFI includes:

and the terminal equipment determines the time slot structure in each time slot according to the time slot structure index of each time slot and the third corresponding relation.

The method of any of claims 11 to 13, wherein the SFI indicates the timeslot structure corresponding to each timeslot in one transmission period in a bitmap manner.

The method according to any of claims 11 to 14, wherein the detecting, by the terminal device, a physical downlink control channel, PDCCH, according to the SFI comprises:

and the terminal equipment detects the PDCCH according to the time slot structure corresponding to each time slot in one transmission period in each transmission period.

The method according to any one of claims 11 to 15, further comprising:

and the terminal equipment receives configuration information sent by the network equipment, wherein the configuration information is used for configuring the transmission cycle of the DCI for bearing the SFI.

A method of transmitting data, comprising:

the network equipment generates a time Slot Format Indication (SFI) which is used for indicating at least one item of time slot structure in a time unit and time length applicable to the time slot structure;

and the network equipment sends the SFI to the terminal equipment.

The method of claim 17, wherein the time unit is a time slot.

The method of claim 18, wherein the SFI is configured to indicate information on a number of downlink symbols and/or information on a number of uplink symbols included in one slot.

The method of claim 18, wherein the SFI is configured to indicate a slot structure index, and wherein the slot structure index and the slot structure have a first correspondence.

The method according to any of claims 18 to 20, wherein the SFI comprises information of the number of timeslots to which the timeslot structure is applicable.

The method of any of claims 18 to 20, wherein the scrambling scheme used for the DCI carrying the SFI has a second correspondence with the number of slots to which the slot structure is applicable.

The method according to claim 22, wherein the scrambling scheme adopted by the DCI comprises a mask and/or a Radio Network Temporary Identity (RNTI) adopted for scrambling the DCI.

The method of claim 17, wherein the time unit is a transmission period for transmitting DCI carrying an SFI, and wherein the transmission period comprises a plurality of slots.

The method of claim 24, wherein the SFI is configured to indicate a slot structure corresponding to each slot in a transmission period.

The method of claim 25, wherein the SFI comprises information on a number of downlink symbols and/or information on a number of uplink symbols included in each slot in one transmission period.

The method of claim 25, wherein the SFI comprises a slot structure index for each slot in one transmission period, and wherein the slot structure index has a third correspondence with a slot structure.

The method of claim 26 or 27, wherein the SFI indicates the timeslot structure corresponding to each timeslot in one transmission period in a bitmap manner.

The method of any one of claims 24 to 28, further comprising:

and the network equipment sends configuration information to the terminal equipment, wherein the configuration information is used for configuring the transmission cycle of the DCI for bearing the SFI for the terminal equipment.

A terminal device, comprising:

the communication module is used for receiving the time slot format indication SFI sent by the network equipment;

a determining module, configured to determine, according to the SFI, at least one of a time slot structure in a time unit and a time length applicable to the time slot structure;

the communication module is further configured to detect a physical downlink control channel PDCCH according to the SFI.

The terminal device of claim 30, wherein the time unit is a time slot.

The terminal device of claim 31, wherein the SFI is configured to indicate number information of downlink symbols and/or number information of uplink symbols included in one timeslot, and the determining module is specifically configured to:

determining M symbols starting from a first symbol in a time slot as time domain positions for downlink transmission, wherein M is the number of downlink symbols and is an integer greater than or equal to 0; and/or

Determining N symbols which are from the last symbol to the front in a time slot as time domain positions for uplink transmission, wherein N is the number of the uplink symbols, and N is an integer which is greater than or equal to 0.

The terminal device of claim 32, wherein the communication module is specifically configured to:

detecting the PDCCH on the M symbols starting from a first symbol.

The terminal device of claim 31, wherein the SFI is configured to indicate a slot structure index, and wherein the determining module is specifically configured to:

and determining a time slot structure in a time slot according to the time slot structure index and a first corresponding relation, wherein the first corresponding relation is the corresponding relation between the time slot structure index and the time slot structure.

The terminal device of any of claims 31-34, wherein the SFI comprises information on the number of timeslots to which the timeslot structure is applicable.

The terminal device according to any one of claims 31 to 34, wherein the determining module is specifically configured to:

and determining the number of the time slots applicable to the time slot structure according to the scrambling mode adopted by the DCI for carrying the SFI and a second corresponding relationship, wherein the second corresponding relationship is the corresponding relationship between the scrambling mode adopted by the DCI for carrying the SFI and the number of the time slots applicable to the time slot structure.

The terminal device according to claim 36, wherein the scrambling scheme adopted by the DCI includes a mask and/or a radio network temporary identity RNTI adopted for scrambling the DCI.

The terminal device according to any one of claims 35 to 37, wherein the communication module is specifically configured to:

detecting a Physical Downlink Control Channel (PDCCH) in K time slots starting from a current time slot or L time slots after the current time slot according to the time slot structure, wherein K is the number of the time slots applicable to the time slot structure, L is an integer greater than or equal to 1, and K is an integer greater than or equal to 1.

The terminal device of claim 30, wherein the unit of time is a transmission period for transmitting DCI carrying an SFI, and wherein the transmission period comprises a plurality of slots.

The terminal device of claim 39, wherein the SFI is configured to indicate a slot structure corresponding to each slot in a transmission period.

The terminal device of claim 40, wherein the SFI includes information on the number of downlink symbols and/or information on the number of uplink symbols included in each timeslot in one transmission period, and the determining module is specifically configured to:

determining M symbols starting from a first symbol in each time slot as a time domain position for downlink transmission in each time slot, wherein M is the number of downlink symbols in each time slot, and M is an integer greater than or equal to 0; and/or

And determining N symbols from the last symbol to the front in each time slot as the time domain position for uplink transmission in each time slot, wherein N is the number of uplink symbols in each time slot, and N is an integer greater than or equal to 0.

The terminal device of claim 40, wherein the SFI comprises a slot structure index of each slot in one transmission period, the slot structure index and the slot structure have a third corresponding relationship, and the determining module is specifically configured to:

and determining the time slot structure in each time slot according to the time slot structure index of each time slot and the third corresponding relation.

The terminal device of any one of claims 40 to 42, wherein the SFI indicates the timeslot structure corresponding to each timeslot in one transmission period in a bitmap manner.

The terminal device according to any one of claims 40 to 43, wherein the communication module is specifically configured to:

and in each transmission period, detecting the PDCCH according to the time slot structure corresponding to each time slot in one transmission period.

The terminal device of any one of claims 40-44, wherein the communication module is further configured to:

receiving configuration information sent by the network device, where the configuration information is used to configure the transmission cycle of the DCI for carrying the SFI.

A network device, comprising:

a generating module, configured to generate a time slot format indication SFI, where the SFI is used to indicate at least one of a time slot structure in a time unit and a time length applicable to the time slot structure;

and the communication module is used for sending the SFI to the terminal equipment.

The network device of claim 46, wherein the time unit is a time slot.

The network device of claim 47, wherein the SFI is configured to indicate information on a number of downlink symbols and/or information on a number of uplink symbols included in a slot.

The network device of claim 47, wherein the SFI is configured to indicate a slot structure index, and wherein the slot structure index and the slot structure have a first correspondence.

The network device of any one of claims 47 to 49, wherein the SFI comprises information on the number of timeslots to which the timeslot structure is applicable.

The network device of any one of claims 47 to 49, wherein a scrambling scheme used for DCI carrying SFI has a second correspondence with a number of slots to which a slot structure is applicable.

The network device of claim 51, wherein the scrambling scheme adopted by the DCI comprises a mask and/or a Radio Network Temporary Identity (RNTI) adopted for scrambling the DCI.

The network device of claim 46, wherein the unit of time is a transmission period for transmitting DCI carrying an SFI, and wherein the transmission period comprises a plurality of slots.

The network device of claim 53, wherein the SFI is configured to indicate a slot structure for each slot in a transmission period.

The network device of claim 54, wherein the SFI comprises information on a number of downlink symbols and/or information on a number of uplink symbols included in each slot within one transmission period.

The network device of claim 54, wherein the SFI comprises a slot structure index for each slot in one transmission period, wherein the slot structure index has a third correspondence with a slot structure.

The network device of claim 55 or 56, wherein the SFI uses a bitmap to indicate the timeslot structure corresponding to each timeslot in a transmission period.

The network device of any one of claims 53-57, wherein the communication module is further configured to:

and sending configuration information to the terminal equipment, wherein the configuration information is used for configuring the transmission cycle of the DCI for carrying the SFI for the terminal equipment.

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