WO2022227033A1 - Procédé de communication sans fil, dispositif terminal, et dispositif réseau - Google Patents

Procédé de communication sans fil, dispositif terminal, et dispositif réseau Download PDF

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Publication number
WO2022227033A1
WO2022227033A1 PCT/CN2021/091599 CN2021091599W WO2022227033A1 WO 2022227033 A1 WO2022227033 A1 WO 2022227033A1 CN 2021091599 W CN2021091599 W CN 2021091599W WO 2022227033 A1 WO2022227033 A1 WO 2022227033A1
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WIPO (PCT)
Prior art keywords
uplink transmission
srs resource
field
sri
resource set
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PCT/CN2021/091599
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English (en)
Chinese (zh)
Inventor
方昀
史志华
陈文洪
黄莹沛
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180076904.0A priority Critical patent/CN116848907A/zh
Priority to PCT/CN2021/091599 priority patent/WO2022227033A1/fr
Publication of WO2022227033A1 publication Critical patent/WO2022227033A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, terminal device, and network device.
  • SRS Sounding Reference Signal
  • MTRP Multi Transmission Receive Point
  • the embodiments of the present application provide a wireless communication method, terminal equipment, and network equipment.
  • At least one indication field in the DCI is used to indicate STRP or MTRP, and when the uplink transmission is sent to STRP or MTRP, the SRS corresponding to the uplink transmission is indicated. Resource set.
  • a wireless communication method including: a terminal device receiving DCI.
  • the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the uplink transmission corresponds to The SRS resource set.
  • a wireless communication method including: a network device sending DCI to a terminal device.
  • the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the uplink transmission corresponds to The SRS resource set.
  • a terminal device including: a communication unit for receiving DCI.
  • the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the uplink transmission corresponds to The SRS resource set.
  • a network device including: a communication unit configured to send DCI to a terminal device.
  • the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the uplink transmission corresponds to The SRS resource set.
  • a terminal device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.
  • an apparatus for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the apparatus includes: a processor for calling and running a computer program from a memory, so that a device installed with the apparatus executes any one of the above-mentioned first to second aspects or each of its implementations method.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program product comprising computer program instructions, the computer program instructions cause a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.
  • the STRP or MTRP is indicated by at least one indication field in the DCI, and when the uplink transmission is sent to the STRP or MTRP, the SRS resource set corresponding to the uplink transmission is indicated.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • 3 is a flowchart of a codebook-based uplink transmission scheme
  • FIG. 4 is an interaction flowchart of a wireless communication method provided by an embodiment of the present application.
  • FIG. 5 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application
  • FIG. 6 shows a schematic block diagram of a network device 600 according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR system NR system evolution system
  • LTE LTE-based access to unlicensed spectrum, LTE-U
  • NR NR-based access to unlicensed spectrum, NR-U
  • NR-U Universal Mobile Telecommunication System
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Fidelity
  • WiFi next-generation communication system or other communication systems, etc.
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • This embodiment of the present application does not limit the applied spectrum.
  • the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.
  • STAION, ST in the WLAN
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a WCDMA
  • the base station (NodeB, NB) can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device or base station in an NR network ( gNB) or network equipment in the future evolved PLMN network, etc.
  • gNB NR network
  • a network device provides services for a cell
  • a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network device (for example, a frequency domain resource).
  • the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell), where the small cell can include: Metro cell, Micro cell, Pico cell cell), Femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.
  • MIMO Multiple-Input Multiple-Output
  • the following first introduces SRS, a non-codebook-based uplink transmission scheme, a codebook-based uplink transmission scheme, and an indication method of SRS resources in the uplink transmission scheme:
  • the SRS can be used for CSI acquisition, downlink channel information acquisition, and uplink beam management.
  • the NR system manages and configures the SRS in the form of an SRS resource set.
  • the network device may configure multiple SRS resource sets for the terminal device, each SRS resource set includes one or more SRS resources, and each SRS resource includes 1, 2 or 4 ports.
  • the configuration information of each SRS resource set contains a usage indication, which can be configured as "beamManagement", "codebook”, “nonCodebook” or “antennaswitching", which are respectively used for uplink beam management, codebook-based CSI acquisition, and non-codebook-based CSI acquisition.
  • FIG. 2 is a flowchart of a non-codebook-based uplink transmission scheme. As shown in Figure 2, the non-codebook-based uplink transmission scheme includes the following steps:
  • the terminal device measures the downlink reference signal to obtain a candidate uplink precoding matrix.
  • the terminal device uses the candidate uplink precoding matrix to precode at least one SRS for the non-codebook uplink transmission scheme.
  • the terminal device sends the at least one SRS to the network device.
  • the network device measures the channel of at least one SRS, obtains a channel measurement result, and selects SRS resources, the number of transmission layers, and the demodulation reference signal (Demodulation Reference Sgnal, DMRS) port indication information in the SRS set according to the channel measurement result, PUSCH resource allocation and corresponding modulation and coding strategy (Modulation and Coding Scheme, MCS) level.
  • demodulation reference signal Demodulation Reference Sgnal, DMRS
  • MCS Modulation and Coding Scheme
  • the network device sends downlink control information (Downlink control information, DCI) to the terminal device.
  • DCI Downlink control information
  • the DCI includes SRI, DMRS port indication information, physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) resource allocation and corresponding MCS level, where the SRI is used to indicate the SRS resource selected by the network device.
  • SRI Physical Uplink Shared Channel
  • the terminal device modulates and encodes the data of the PUSCH according to the MCS level, and uses the SRI to determine the precoding matrix and the number of transmission layers used when the data is sent.
  • the terminal device performs precoding transmission on the PUSCH according to the precoding matrix and the number of transmission layers.
  • the DMRS of the PUSCH and the data of the PUSCH use the same precoding.
  • the network device estimates the uplink channel according to the DMRS, and performs demodulation and decoding of the PUSCH data.
  • the network device can configure one SRS resource set for the terminal device for uplink CSI acquisition, the SRS resource set includes 1-4 SRS resources, and each SRS resource includes one SRS port .
  • the SRI may indicate one or more SRS resources selected by the network device for determining PUSCH precoding.
  • the number of SRS resources indicated by the SRI is the number of transmission layers of the PUSCH, that is, the number of transmission layers of the PUSCH is in one-to-one correspondence with the SRS resources indicated by the SRI.
  • the terminal device For the non-codebook uplink transmission scheme, the terminal device needs to obtain uplink precoding information according to the downlink reference signal based on channel reciprocity.
  • a terminal device can be configured with multiple downlink reference signals, some downlink reference signals can be used for beam management, some downlink reference signals can be used for downlink CSI measurement, and some downlink reference signals can be used for downlink channel demodulation.
  • the network equipment In order for the terminal equipment to obtain better candidate precoding for the non-codebook uplink transmission scheme, in the NR system, the network equipment is allowed to configure an association for channel measurement for the SRS resource set used for the non-codebook uplink transmission scheme NZP CSI-RS resources. According to the associated NZP CSI-RS resource, the terminal device can obtain precoding for SRS signal transmission of the SRS resource set of the non-codebook uplink transmission scheme.
  • FIG. 3 is a flowchart of a codebook-based uplink transmission scheme. As shown in Figure 3, the codebook-based uplink transmission scheme in the NR system R16 includes the following steps:
  • the terminal device sends at least one SRS to the network device according to the SRS resource configured to it by the network device.
  • S320 The network device measures the channel of at least one SRS to obtain a channel measurement result, and selects SRS resources, TPMI, DMRS port indication information, PUSCH resource allocation and corresponding MCS level in the SRS set according to the channel measurement result.
  • S330 The network device sends the DCI to the terminal device.
  • the DCI includes: SRI, TPMI, DMRS port indication information, PUSCH resource allocation and corresponding MCS level, where the SRI is used to indicate the SRS resource selected by the network device.
  • the terminal device modulates and encodes the PUSCH data according to the MCS, uses the SRI and TPMI to determine the precoding matrix used when the data is sent, uses the SRI to determine the number of transmission layers, and uses the TPMI to select the PUSCH precoder from the codebook .
  • S350 The terminal device performs precoding and transmission on the PUSCH through the selected precoder according to the precoding matrix and the number of transmission layers.
  • the DMRS of the PUSCH and the data of the PUSCH use the same precoding.
  • the network device estimates the uplink channel according to the DMRS, and demodulates and decodes the data of the PUSCH.
  • the network device is allowed to configure at most one SRS resource set for the terminal device for CSI acquisition based on the codebook, and a maximum of two SRS resources can be configured in the SRS resource set. Contains the same number of SRS antenna ports. Since the enhancement of PUSCH based on multi-TRP was introduced in R17, starting from R17, the NR system allows the network device to configure a maximum of two SRS resource sets for the terminal device for acquisition based on codebook CSI. Whether the number of resources that can be included in each resource set is the same is limited.
  • the network device indicates the selected SRS resource to the terminal device through the SRI in the DCI, so as to assist the terminal device to determine the antenna and analog beamforming used for PUSCH transmission according to the SRS resource selected by the network device. Since the number of SRS resources configured by the network device for different uplink transmission schemes may be different, the SRI overhead can be reduced by determining the number of bits occupied by the SRI based on the uplink transmission scheme. Therefore, the number of bits occupied by the SRI depends on the number of SRS resources configured in the uplink transmission scheme. When the network device configures only one SRS resource for an uplink transmission scheme of the terminal device, the PUSCH under the uplink transmission scheme corresponds to the SRS resource, therefore, the SRI indication field may not exist in the DCI.
  • the downlink control channel carries the DCI sent by the network device to the terminal device, wherein DCI format 0_0, DCI format 0_1 and DCI format 0_2 are used to schedule the uplink PUSCH.
  • DCI format 0_1 and DCI format 0_2 there is an SRI indication field, and the SRI indication field carries SRI.
  • the network device performs uplink channel detection based on the SRS sent by the terminal device, selects one or more SRS resources, and indicates to the SRS through the SRI.
  • the SRI indicates that the domain is occupied bits, where N SRS is the number of SRS resources in the SRS resource set configured for non-codebook transmission, and L max is the maximum number of layers that can be configured. This is because when the network indicates layer 1, there are There are possible combinations of SRS resources, indicating that there are 2 layers There are possible combinations of SRS resources, until the network indicates the min ⁇ L max ,N SRS ⁇ layer, there are Various combinations of SRS resources are possible. In codebook transmission, since only one SRS resource is selected each time as the resource reference for uplink transmission, the SRI indication field is occupied. bits, where N SRS is the number of SRS resources in the SRS resource set configured for non-codebook transmission.
  • the present application uses at least one indication field in the DCI to indicate the dynamic switching between the STRP uplink transmission scheme and the MTRP uplink repeated transmission scheme, and how to indicate the SRS corresponding to the uplink transmission when the uplink transmission is sent to the STRP Resource set.
  • FIG. 4 is an interaction flowchart of a wireless communication method provided by an embodiment of the present application. As shown in FIG. 4 , the method includes the following steps:
  • the terminal device receives DCI; wherein, the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used to instruct the uplink transmission to be sent to STRP or MTRP, and when the uplink transmission is sent to the In the case of STRP or MTRP, the corresponding SRS resource set is transmitted in the uplink.
  • the above two SRS resource sets may both be SRS resource sets based on codebook transmission, or both SRS resource sets based on non-codebook transmission, which are not limited in this application.
  • the terminal device may not only be configured with two SRS resource sets, but may be configured with more SRS resource sets, such as three SRS resource sets, which is not limited in this application.
  • the number of SRS resource sets is related to the number of TRPs.
  • the number of SRS resource sets is the same as the number of TRPs, and there is a one-to-one correspondence between SRS resource sets and TRPs.
  • the SRS resource set has nothing to do with the number of TRPs in the MTRP, which is not limited in this application.
  • At least one indication field is used to indicate that the uplink transmission is sent to the MTRP, and is also used to indicate the above-mentioned two SRS resource sets corresponding to the uplink transmission when the uplink transmission is sent to the MTRP.
  • At least one indication field is used to indicate that the uplink transmission is sent to the STRP, and when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission, and the target SRS resource set is one SRS resource set in the two SRS resource sets. .
  • the target SRS resource set is one SRS resource set among the two SRS resource sets.
  • DCI is used to schedule the uplink transmission.
  • the uplink transmission may be PUSCH transmission, but is not limited thereto.
  • the above at least one indication field has the following situations, but is not limited to this:
  • At least one indication field includes: a first indication field and a second indication field; wherein, the first indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and the first indication field is used to indicate that the uplink transmission is sent to STRP or MTRP.
  • the second indication field is used to indicate the target SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to the STRP.
  • At least one indication field is a third indication field; wherein, the third indication field indicates the target SRS resource set, indicating that the uplink transmission is sent to the STRP, and the uplink transmission corresponds to The target SRS resource set; or, the third indication field indicates two SRS resource sets, indicating that the uplink transmission is sent to the MTRP, and the uplink transmission corresponds to the two SRS resource sets.
  • the at least one indication field includes: the fourth indication field, the fifth indication field, and the DCI Also includes a sixth indication field; wherein, the fourth indication field is used to indicate that the uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission, the target SRS The resource set is the first SRS resource set; or, the fourth indication field is used to indicate that the uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission, The sixth indication field is used to indicate that when the uplink transmission is sent to the STRP, the SRS resources in the target SRS resource set corresponding to the uplink transmission, and the target SRS resource set is the second SRS
  • At least one indication field includes: a seventh indication field and an eighth indication field
  • the DCI further includes: a ninth indication field; wherein, the seventh indication field uses In order to indicate that the uplink transmission is sent to STRP or MTRP, the eighth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission is used, and the ninth indication field is used to indicate that when the uplink transmission is sent to the STRP, the uplink The SRS resources in the corresponding target SRS resource set are transmitted.
  • the first indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the first indication field is 0, indicating that uplink transmission is sent to STRP, and the value of the first indication field is 1, indicating that uplink transmission is sent to MTRP.
  • the value of the first indication field is 1, indicating that the uplink transmission is sent to the STRP, and the value of the first indication field is 0, indicating that the uplink transmission is sent to the MTRP.
  • the second indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the second indication field is 0, which means that when the uplink transmission is sent to the STRP, the uplink transmission corresponds to SRS resource set 1, and the value of the second indication field is 1, which means that when the uplink transmission is sent to the STRP, the uplink transmission is Corresponds to SRS resource set 2.
  • the value of the second indication field is 1, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1, and the value of the second indication field is 0, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS Resource set 2.
  • the second indication field is a Transmission Precoding Matrix Indicator (Transmission Precoding Matrix Indicator) in the DCI. , TPMI) domain.
  • the one TPMI domain may be any TPMI domain in the DCI, for example, the first TPMI domain or the second TPMI domain in the DCI, which is not limited in this application.
  • Example 1 it is assumed that the value of the first indication field is 0, indicating that uplink transmission is sent to STRP, and the value of the first indication field is 1, indicating that uplink transmission is sent to MTRP.
  • the value of the second indication field is 0, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1, and the second indication field is set to 1, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1 2.
  • the value of the first indication field of the DCI is 0, and the value of the second indication field is also 0, it means that the uplink transmission is sent to the STRP, and the uplink transmission corresponds to SRS resource set 1.
  • the third indication field occupies at least 2 bits, for example, occupies 2 bits, but is not limited thereto.
  • the SRS resource set indicated by the third indication field can determine that the uplink transmission is sent to the STRP or the MTRP, and the SRS resource set corresponding to the uplink transmission can be determined.
  • Example 2 when the third indication field indicates the above SRS resource set 1, it means that the uplink transmission is sent to the STRP, and the uplink transmission corresponds to the SRS resource set 1.
  • the third indication field indicates SRS resource set 1 and SRS resource set 2, it means that uplink transmission is sent to MTRP, and uplink transmission corresponds to SRS resource set 1 and SRS resource set 2.
  • the fourth indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the fourth indication field is 0, which means that the uplink transmission is sent to the STRP, and the value of the fourth indication field is 1, which means that the uplink transmission is sent to the MTRP.
  • the value of the fourth indication field is 1, which means that the uplink transmission is sent to the STRP, and the value of the fourth indication field is 0, which means that the uplink transmission is sent to the MTRP.
  • the fifth indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the fifth indication field is 0, which means that when the uplink transmission is sent to the STRP, the uplink transmission corresponds to SRS resource set 1, and the value of the fifth indication field is 1, which means that when the uplink transmission is sent to the STRP, the uplink transmission is Corresponds to SRS resource set 2.
  • the value of the fifth indication field is 1, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1, and the value of the fifth indication field is 0, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS Resource set 2.
  • the number of bits occupied by the sixth indication field is related to the larger N max of the number of SRS resources included in SRS resource set 1 and SRS resource set 2, for example :
  • the number of bits occupied by the sixth indication field is at least
  • Example 3 assuming that SRS resource set 1 includes 2 SRS resources, and SRS resource set 2 includes 4 SRS resources, then the number of bits occupied by the sixth indication field is at least
  • the uplink transmission is codebook-based uplink transmission
  • the number of bits occupied by the sixth indication field and the number of SRS resources included in SRS resource set 1 and SRS resource set 2, whichever is greater, N max and the terminal equipment.
  • the maximum number of supported transport layers L max is related, for example: the number of bits occupied by the sixth finger indicating field is at least in, express The following explanation of the symbol will not be explained.
  • Example 4 assuming that the maximum number of transmission layers supported by the terminal device is 2, and SRS resource set 1 includes 2 SRS resources, and SRS resource set 2 includes 4 SRS resources, then the number of bits occupied by the sixth indication field is at least
  • the fifth indication field is an SRI field in the DCI, that is, in the STRP scenario, the target SRS resource set is indicated by multiplexing the SRI field.
  • the sixth indication field may be a TPMI field in the DCI, or may be another indication field in the DCI, which is not limited in this application.
  • the fifth indication field is an SRI field in the DCI
  • the number of bits occupied by the SRI field is described below:
  • Implementation mode 1 When the uplink transmission is codebook-based uplink transmission, the number of bits occupied by the SRI field is related to N 1 ; wherein, N 1 represents the SRS included in the SRS resource set corresponding to one SRI field in the MTRP scenario. number of resources.
  • the number of bits occupied by the SRI field is Or, the number of bits occupied by the SRI field is greater than This application does not limit this.
  • Example 5 assuming that uplink transmission is codebook-based uplink transmission, the target SRS resource set in the STRP scenario is indicated by SRI field 1 in DCI, and the number of SRS resources included in SRS resource set 1 is 2, and the number of SRS resources included in SRS resource set 2 is 2.
  • the number of SRS resources is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • Implementation mode 2 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the SRI field is related to N 1 and L max ; where N 1 represents the SRS resource corresponding to one SRI field in the MTRP scenario The number of SRS resources included in the set, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the SRI field is Or, the number of bits occupied by the SRI field is greater than This application does not limit this.
  • Example 6 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRI field 1 in the DCI indicates the target SRS resource set in the STRP scenario, and the SRS resource set 1 includes SRS The number of resources is 2, the number of SRS resources included in SRS resource set 2 is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • the fourth indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in the SRI field is used to indicate the target SRS resource set, and the Other bits are padded with 0s.
  • 1 bit in the SRI field is the lowest bit or the highest bit in the SRI field.
  • Example 7 assuming that the number of bits occupied by SRI field 1 is 2, and the above fourth indication field indicates that uplink transmission is sent to STRP, then the lowest 1 bit in SRI field 1 is used to indicate the target SRS resource set, and then the SRI field The other 1 bit in the 1 is padded with 0s.
  • the sixth indication field is an SRI field in the DCI, that is, in the STRP scenario, the SRS resources in the target SRS resource set are indicated by multiplexing the SRI field.
  • the fifth indication field may be a TPMI field in the DCI, or other indication fields in the DCI, which is not limited in this application.
  • the sixth indication field is an SRI field in the DCI
  • the number of bits occupied by the SRI field is described below:
  • Implementation mode 1 When the uplink transmission is based on the codebook, the number of bits occupied by the SRI field is related to N 1 and N max ; wherein, N 1 represents the SRS resource set corresponding to one SRI field in the MTRP scenario. The number of SRS resources included, N max represents the larger of the numbers of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by the SRI field is Or, the number of bits occupied by the SRI field is greater than This application does not limit this.
  • Example 8 assuming that the uplink transmission is codebook-based uplink transmission, the SRI field 1 in the DCI indicates the SRS resources in the target SRS resource set, and the number of SRS resources included in the SRS resource set 1 is 2, and the SRS resources included in the SRS resource set 2 The number is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the SRI field are filled with 0.
  • Bits are low-order bits in this SRI field bits, or high-order bits in this SRI field bit, which is not limited in this application.
  • Example 9 assuming that the number of bits occupied by SRI field 1 is 4, and the above fourth indication field indicates that the uplink transmission is sent to STRP, and Then the lowest 2 bits in SRI field 1 are used to indicate the SRS resources in the target SRS resource set, and then the other bits in SRI field 1 are padded with 0s.
  • Implementation mode 2 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the SRI field is related to N 1 , N max and L max ; wherein, N 1 indicates that in the MTRP scenario, the SRI field corresponds to The number of SRS resources included in the SRS resource set, N max represents the larger of the number of SRS resources included in the two SRS resource sets, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the SRI field is greater than or equal to the following result:
  • Example 10 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRS resource in the target SRS resource set is indicated by the SRI field 1 in the DCI, and the number of SRS resources included in the SRS resource set 1 is is 2, the number of SRS resources included in SRS resource set 2 is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the SRI field are filled with 0.
  • Bits are low-order bits in this SRI field bits, or high-order bits in this SRI field bit, which is not limited in this application.
  • Example 11 assuming that the number of bits occupied by the SRI field 1 is 4, and the fourth indication field above indicates that the uplink transmission is sent to the STRP, and Then the lowest 2 bits in SRI field 1 are used to indicate the SRS resources in the target SRS resource set, and then the other bits in SRI field 1 are padded with 0s.
  • the seventh indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the seventh indication field is 0, indicating that uplink transmission is sent to STRP, and the value of the seventh indication field is 1, indicating that uplink transmission is sent to MTRP.
  • the value of the seventh indication field is 1, indicating that the uplink transmission is sent to the STRP, and the value of the seventh indication field is 0, indicating that the uplink transmission is sent to the MTRP.
  • the eighth indication field occupies at least 1 bit, for example, occupies 1 bit, but is not limited to this.
  • the value of the eighth indication field is 0, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1, and the value of the eighth indication field is 1, which means that when uplink transmission is sent to STRP, the value of uplink transmission is 1. Corresponds to SRS resource set 2.
  • the value of the eighth indication field is 1, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS resource set 1, and the eighth indication field is set to 0, which means that when uplink transmission is sent to STRP, the uplink transmission corresponds to SRS Resource set 2.
  • the number of bits occupied by the ninth indication field is related to the larger N max of the number of SRS resources included in SRS resource set 1 and SRS resource set 2, for example :
  • the number of bits occupied by the ninth indication field is at least
  • the uplink transmission is codebook-based uplink transmission
  • the maximum number of supported transport layers L max is related, for example: the number of bits occupied by the ninth indication field is at least
  • the eighth indication field is the first TPMI field in the DCI
  • the ninth indication field is the second TPMI field in the DCI.
  • the eighth indication field is the first SRI field in the DCI
  • the ninth indication field is the second SRI field in the DCI.
  • the eighth indication field is the first SRI field in the DCI
  • the ninth indication field is the second SRI field in the DCI
  • the number of bits occupied by the first SRI field is related to N2 ; wherein, N2 indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field includes: number of SRS resources.
  • the number of bits occupied by the first SRI field is Or, the number of bits occupied by the SRI field is greater than This application does not limit this.
  • SRI field 1 in DCI indicates the target SRS resource set in the STRP scenario, and the number of SRS resources included in SRS resource set 1 is 2, and SRS resource set 2 includes SRS The number of resources is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • Implementation mode 2 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the first SRI field is related to N 2 and L max ; wherein, N 2 indicates that in the MTRP scenario, the first SRI field corresponds to the number of bits.
  • the number of SRS resources included in the SRS resource set, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the first SRI field is greater than or equal to
  • Example 13 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRI field 1 in the DCI indicates the target SRS resource set in the STRP scenario, and the SRS resource set 1 includes SRS The number of resources is 2, the number of SRS resources included in SRS resource set 2 is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 1 is SRS resource set 2, then the number of bits occupied by SRI domain 1 is
  • Possible implementation mode 3 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the first SRI field is related to N 1max ; where N 1max indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field is concentrated. The number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations.
  • the third implementation is applicable to the fact that the terminal device can know the actual transmission layer number of the terminal device according to the second SRI field, and based on this, the number of bits occupied by the first SRI field is related to N 1max .
  • the number of bits occupied by the first SRI field is greater than or equal to But not limited to this.
  • Example 14 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRI field 1 in the DCI indicates the target SRS resource set in the STRP scenario, and the SRS resource set 1 includes SRS The number of resources is 2, and the number of SRS resources included in SRS resource set 2 is 4.
  • the SRS resource set corresponding to the SRI domain 1 is the SRS resource set 2
  • the seventh indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in the first SRI field is used to indicate the target SRS resource set
  • the first SRI The other bits in the field are padded with 0s.
  • 1 bit in the SRI field is the lowest bit or the highest bit in the SRI field.
  • Example 15 assuming that the number of bits occupied by SRI field 1 is 2, and the above seventh indication field indicates that uplink transmission is sent to STRP, then the lowest 1 bit in SRI field 1 is used to indicate the target SRS resource set, and then the SRI field The other 1 bit in the 1 is padded with 0s.
  • the eighth indication field is the first SRI field in the DCI
  • the ninth indication field is the second SRI field in the DCI
  • Possible implementation mode 1 when the uplink transmission is codebook-based uplink transmission, the number of bits occupied by the second SRI field is related to N 3 and N max ; wherein, N 3 represents the SRS corresponding to the second SRI field in the MTRP scenario The number of SRS resources included in the resource set, and N max represents the larger of the numbers of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by the second SRI field is greater than or equal to
  • Example 16 assuming that the uplink transmission is codebook-based uplink transmission, the SRI field 2 in the DCI indicates the SRS resources in the target SRS resource set, and the number of SRS resources included in the SRS resource set 1 is 2, and the SRS resources included in the SRS resource set 2 are The number is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 2 is SRS resource set 1, then the number of bits occupied by SRI domain 2 is
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • bits are from the low order in this second SRI field bits, or the high-order bits in this second SRI field bit, which is not limited in this application.
  • Example 17 assuming that the number of bits occupied by SRI field 2 is 4, and the above seventh indication field indicates that the uplink transmission is sent to the STRP, and Then the lowest 2 bits in the SRI field 2 are used to indicate the SRS resources in the target SRS resource set, and then the other bits in the SRI field 2 are padded with 0s.
  • Implementation mode 2 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the second SRI field is related to N 3 , N max and L max ; wherein, N 3 indicates that in the MTRP scenario, the second SRI The number of SRS resources included in the SRS resource set corresponding to the domain, N max represents the larger of the number of SRS resources included in the two SRS resource sets, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the second SRI field is greater than or equal to the following result:
  • Example 18 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRS resource in the target SRS resource set is indicated by the SRI field 2 in the DCI, and the number of SRS resources included in the SRS resource set 1 is is 2, the number of SRS resources included in SRS resource set 2 is 4, and in the MTRP scenario, the SRS resource set corresponding to SRI domain 2 is SRS resource set 2, then the number of bits occupied by SRI domain 2 is
  • Implementation mode 3 When the uplink transmission is based on non-codebook uplink transmission, the number of bits occupied by the second SRI field is related to N 2max , N max and L max ; where N 2max represents that in the MTRP scenario, the second SRI The number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations in the SRS resource set corresponding to the domain, N max represents the larger of the number of SRS resources included in the two SRS resource sets, and L max represents the maximum layer supported by the terminal device number.
  • the number of bits occupied by the second SRI field is greater than or equal to the following result:
  • Example 19 assuming that the uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 2, the SRS resource in the target SRS resource set is indicated by the SRI field 2 in the DCI, and the SRS resource set 1 includes the number of SRS resources. is 2, and the number of SRS resources included in SRS resource set 2 is 4.
  • the SRS resource set corresponding to the SRI domain 2 is the SRS resource set 2
  • the SRS resource set 2 corresponds to the SRS resource
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • bits are from the low order in this second SRI field bits, or the high-order bits in this second SRI field bit, which is not limited in this application.
  • Example 20 it is assumed that the number of bits occupied by the SRI field 2 is 4, and the above seventh indication field indicates that the uplink transmission is sent to the STRP, and Then the lowest 2 bits in the SRI field 2 are used to indicate the SRS resources in the target SRS resource set, and then the other bits in the SRI field 2 are padded with 0s.
  • Example 21 assuming that the uplink transmission is based on non-codebook, the maximum number of layers supported by the terminal device is 2, and the number of SRS resources included in SRS resource set 1 is 2, which are resource 1 and resource 2 respectively.
  • the number of SRS resources included in the SRS resource set 2 is 2, which are resource 3 and resource 4 respectively.
  • the SRI field 1 corresponds to the SRS resource set 1
  • the SRI field 2 corresponds to the SRS resource set 2.
  • the SRI field 1 is used to indicate the target SRS resource set
  • the SRI field 2 is used to indicate the target SRS resource set Centralized SRS resources.
  • the target SRS resource set may be SRS resource set 1 or SRS resource set 2, and SRS resource set 1 has three resource combinations: resource 1, resource 2, resource 1 and resource 2.
  • SRS resource set 2 also has three resource combinations: resource 3, resource 4, resource 3 and resource 4.
  • the number of bits occupied by SRI field 1 can be in, Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 1 in the MTRP scenario, and 1 represents the number of bits required to indicate the target SRS resource set in the STRP scenario.
  • the number of bits occupied by SRI field 2 can be Among them, the first Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 2 in the MTRP scenario. Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • Example 22 assuming that uplink transmission is based on non-codebook uplink transmission, the maximum number of layers supported by the terminal device is 4, and the number of SRS resources included in SRS resource set 1 is 4, which are resource 1, resource 2, resource 3 and resource 4 respectively. .
  • the number of SRS resources included in the SRS resource set 2 is 4, which are resource 5, resource 6, resource 7, and resource 8, respectively.
  • the SRI field 1 corresponds to the SRS resource set 1
  • the SRI field 2 corresponds to the SRS resource set 2.
  • the SRI field 1 is used to indicate the target SRS resource set
  • the SRI field 2 is used to indicate the target SRS resource set Centralized SRS resources.
  • the target SRS resource set can be SRS resource set 1 or SRS resource set 2, and SRS resource set 1 has 15 resource combinations as shown in Table 1:
  • SRS resource 1 SRS resource 2 SRS resource 3 SRS resource 4 SRS Resource 1 and 2 SRS resources 1 and 3 SRS resources 1 and 4 SRS resources 2 and 3
  • SRS resource set 2 has 15 resource combinations as shown in Table 2:
  • SRS Resource 5 SRS resource 6 SRS Resources 7 SRS Resources 8 SRS Resources 5 and 6 SRS Resources 5 and 7 SRS Resources 5 and 8 SRS Resources 6 and 7 SRS Resources 6 and 8 SRS Resources 7 and 8 SRS resources 5 and 6 and 7 SRS resources 5 and 6 and 8 SRS resources 5 and 7 and 8 SRS resources 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8 SRS resources 5 and 6 and 7 and 8
  • the number of bits occupied by SRI field 1 can be in, Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 1 in the MTRP scenario, and 1 represents the number of bits required to indicate the target SRS resource set in the STRP scenario.
  • the number of bits occupied by SRI field 2 can be Among them, the first Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 2 in the MTRP scenario. Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • the number of bits occupied by the second SRI field can be in, Indicates the number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations in the SRS resource set 2 in the MTRP scenario, and the second Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • Example 23 assuming that uplink transmission is based on non-codebook, the maximum number of layers supported by the terminal device is 2, and the number of SRS resources included in SRS resource set 1 is 2.
  • the number of SRS resources included in the SRS resource set 2 is four.
  • the SRI field 1 corresponds to the SRS resource set 1
  • the SRI field 2 corresponds to the SRS resource set 2.
  • the SRI field 1 is used to indicate the target SRS resource set
  • the SRI field 2 is used to indicate the target SRS resource set Centralized SRS resources.
  • the target SRS resource set can be SRS resource set 1 or SRS resource set 2.
  • the number of bits occupied by SRI field 1 can be in, Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 1 in the MTRP scenario, and 1 represents the number of bits required to indicate the target SRS resource set in the STRP scenario.
  • the number of bits occupied by SRI field 2 can be Among them, the first Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 2 in the MTRP scenario. Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • the number of bits occupied by the second SRI field can be in, Indicates the number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations in the SRS resource set 2 in the MTRP scenario, and the second Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • Example 24 assuming that the uplink transmission is based on a non-codebook, the maximum number of layers supported by the terminal device is 2, and the number of SRS resources included in the SRS resource set 1 is 4.
  • the number of SRS resources included in SRS resource set 2 is 2.
  • the SRI field 1 corresponds to the SRS resource set 1
  • the SRI field 2 corresponds to the SRS resource set 2.
  • the SRI field 1 is used to indicate the target SRS resource set
  • the SRI field 2 is used to indicate the target SRS resource set Centralized SRS resources.
  • the target SRS resource set can be SRS resource set 1 or SRS resource set 2.
  • the number of bits occupied by SRI field 1 can be in, Indicates the number of bits occupied by the number of resource combinations corresponding to SRS resource set 1 in the MTRP scenario, and 1 represents the number of bits required to indicate the target SRS resource set in the STRP scenario.
  • the number of bits occupied by SRI field 2 can be in, In the MTRP scenario, the number of bits occupied by the number of resource combinations corresponding to SRS resource set 2, In the STRP scenario, it indicates the number of bits occupied by the SRS resources in the target SRS resource set, or, since the number of transmission layers of the terminal device can be determined according to the resource combination indicated by the first SRI number can be in, Indicates the number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations in the SRS resource set 2 in the MTRP scenario, and the second Indicates the number of bits occupied by the SRS resources in the target SRS resource set in the STRP scenario.
  • the present application indicates STRP or MTRP through at least one indication field in the DCI, and when the uplink transmission is sent to STRP or MTRP, the SRS resource set corresponding to the uplink transmission is indicated.
  • FIG. 5 shows a schematic block diagram of a terminal device 500 according to an embodiment of the present application.
  • the terminal device 500 includes: a communication unit 510 for receiving DCI; wherein, the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, and at least one indication field is used to indicate uplink transmission It is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the corresponding SRS resource set is transmitted in uplink.
  • At least one indication field is used to indicate that the uplink transmission is sent to the STRP, and when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission, and the target SRS resource set is one SRS resource set in the two SRS resource sets. .
  • At least one indication field includes: a first indication field and a second indication field; wherein the first indication field is used to indicate that uplink transmission is sent to STRP or MTRP, The second indication field is used to indicate the target SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to the STRP.
  • the second indication field is a transmission precoding matrix indication TPMI field in the DCI.
  • At least one indication field is a third indication field; wherein, the third indication field indicates the target SRS resource set, indicating that the uplink transmission is sent to the STRP, and the uplink transmission is sent to the STRP.
  • the third indication field indicates two SRS resource sets, indicating that the uplink transmission is sent to the MTRP, and the uplink transmission corresponds to the two SRS resource sets.
  • the at least one indication field includes: a fourth indication field, a fifth indication field, and DCI also includes a sixth indication field; wherein, the fourth indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when uplink transmission is sent to STRP, the target SRS resource set corresponding to the uplink transmission, the target The SRS resource set is the first SRS resource set; or, the fourth indication field is used to indicate that the uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission , the sixth indication field is used to indicate the SRS resources in the target SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to the STRP, and the target SRS resource set is the second SRS resource set
  • the fifth indication field is an SRS resource indication SRI field in the DCI.
  • the number of bits occupied by one SRI field is related to N 1 ; wherein, N 1 represents the SRS resources included in the SRS resource set corresponding to one SRI field in the MTRP scenario. number.
  • the number of bits occupied by an SRI field is
  • the number of bits occupied by one SRI field is related to N 1 and L max ; wherein, N 1 represents the SRS resource set corresponding to one SRI field in the MTRP scenario.
  • the number of SRS resources included, L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in an SRI field is used to indicate the target SRS resource set
  • 1 bit in an SRI field is used to indicate the target SRS resource set.
  • Other bits are padded with 0s.
  • the sixth indication field is an SRI field in the DCI.
  • the number of bits occupied by one SRI field is related to N 1 and N max ; wherein, N 1 indicates that in the MTRP scenario, the SRS resource set corresponding to one SRI field includes: The number of SRS resources in the two SRS resource sets, N max represents the larger of the number of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bits are used to indicate SRS resources in the target SRS resource set, and other bits in an SRI field are filled with 0.
  • the number of bits occupied by an SRI field is related to N 1 , N max and L max ;
  • the number of SRS resources included in the SRS resource set, N max represents the larger of the number of SRS resources included in the two SRS resource sets, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bits are used to indicate SRS resources in the target SRS resource set, and other bits in an SRI field are filled with 0.
  • At least one indication field includes: a seventh indication field and an eighth indication field
  • the DCI further includes: a ninth indication field; wherein, the seventh indication field It is used to indicate that the uplink transmission is sent to STRP or MTRP.
  • the eighth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission is used.
  • the ninth indication field is used to indicate that when the uplink transmission is sent to the STRP, SRS resources in the target SRS resource set corresponding to uplink transmission.
  • the eighth indication field is the first SRI field in the DCI
  • the ninth indication field is the second SRI field in the DCI.
  • the number of bits occupied by the first SRI field is related to N2 ; wherein, N2 indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field includes Number of SRS resources.
  • the number of bits occupied by the first SRI field is
  • the number of bits occupied by the first SRI field is related to N 2 and L max ; wherein, N 2 represents the SRS corresponding to the first SRI field in the MTRP scenario.
  • the number of SRS resources included in the resource set, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the first SRI field is
  • the number of bits occupied by the first SRI field is related to N 1max ; wherein, N 1max indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field corresponds to The number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations.
  • the number of bits occupied by the first SRI field is
  • the seventh indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in the first SRI field is used to indicate the target SRS resource set
  • the first SRI The other bits in the field are padded with 0s.
  • the number of bits occupied by the second SRI field is related to N 3 and N max ; wherein, N 3 represents the SRS resource corresponding to the second SRI field in the MTRP scenario
  • the number of SRS resources included in the set, and N max represents the larger of the number of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by the second SRI field is
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • the number of bits occupied by the second SRI field is related to N 3 , N max and L max ; wherein, N 3 represents that in the MTRP scenario, the second SRI field
  • N 3 represents that in the MTRP scenario, the second SRI field
  • N max represents the larger of the number of SRS resources included in the two SRS resource sets
  • L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the second SRI field is
  • the number of bits occupied by the second SRI field is related to N 2max , N max and L max ; wherein, N 2max indicates that in the MTRP scenario, the second SRI field
  • N 2max indicates that in the MTRP scenario, the second SRI field
  • N max represents the larger of the number of SRS resources included in the two SRS resource sets
  • L max represents the maximum number of layers supported by the terminal device .
  • the number of bits occupied by the second SRI field is
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • the eighth indication field is the first TPMI field in the DCI
  • the ninth indication field is the second TPMI field in the DCI.
  • both SRS resource sets are used for codebook transmission, or both are used for non-codebook transmission.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the terminal device 500 may correspond to the terminal device in the method embodiment corresponding to FIG. 4 of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 500 are respectively for realizing the above-mentioned figure 4
  • the corresponding process of the terminal device in the corresponding method embodiment is not repeated here for brevity.
  • FIG. 6 shows a schematic block diagram of a network device 600 according to an embodiment of the present application.
  • the network device 600 includes: a communication unit 610 for sending DCI to the terminal device; wherein, the terminal device is configured with two SRS resource sets, and the DCI includes: at least one indication field, at least one indication field is used for Indicates that uplink transmission is sent to STRP or MTRP, and when uplink transmission is sent to STRP or MTRP, the corresponding SRS resource set is transmitted in uplink.
  • At least one indication field is used to indicate that the uplink transmission is sent to the STRP, and when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission, and the target SRS resource set is one SRS resource set in the two SRS resource sets. .
  • At least one indication field includes: a first indication field and a second indication field; wherein the first indication field is used to indicate that uplink transmission is sent to STRP or MTRP, The second indication field is used to indicate the target SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to the STRP.
  • the second indication field is a TPMI field in the DCI.
  • At least one indication field is a third indication field; wherein, the third indication field indicates the target SRS resource set, indicating that the uplink transmission is sent to the STRP, and the uplink transmission is sent to the STRP.
  • the third indication field indicates two SRS resource sets, indicating that the uplink transmission is sent to the MTRP, and the uplink transmission corresponds to the two SRS resource sets.
  • the at least one indication field includes: a fourth indication field, a fifth indication field, and DCI also includes a sixth indication field; wherein, the fourth indication field is used to indicate that uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when uplink transmission is sent to STRP, the target SRS resource set corresponding to the uplink transmission, the target The SRS resource set is the first SRS resource set; or, the fourth indication field is used to indicate that the uplink transmission is sent to STRP or MTRP, and the fifth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission , the sixth indication field is used to indicate the SRS resources in the target SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to the STRP, and the target SRS resource set is the second SRS resource set
  • the fifth indication field is an SRI field in the DCI.
  • the number of bits occupied by one SRI field is related to N 1 ; wherein, N 1 represents the SRS resources included in the SRS resource set corresponding to one SRI field in the MTRP scenario. number.
  • the number of bits occupied by an SRI field is
  • the number of bits occupied by one SRI field is related to N 1 and L max ; wherein, N 1 represents the SRS resource set corresponding to one SRI field in the MTRP scenario.
  • the number of SRS resources included, L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in an SRI field is used to indicate the target SRS resource set
  • 1 bit in an SRI field is used to indicate the target SRS resource set.
  • Other bits are padded with 0s.
  • the sixth indication field is an SRI field in the DCI.
  • the number of bits occupied by one SRI field is related to N 1 and N max ; wherein, N 1 indicates that in the MTRP scenario, the SRS resource set corresponding to one SRI field includes: The number of SRS resources in the two SRS resource sets, N max represents the larger of the number of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bits are used to indicate SRS resources in the target SRS resource set, and other bits in an SRI field are filled with 0.
  • the number of bits occupied by an SRI field is related to N 1 , N max and L max ;
  • the number of SRS resources included in the SRS resource set, N max represents the larger of the number of SRS resources included in the two SRS resource sets, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by an SRI field is
  • the fourth indication field is used to indicate that when uplink transmission is sent to STRP, the The bits are used to indicate SRS resources in the target SRS resource set, and other bits in an SRI field are filled with 0.
  • At least one indication field includes: a seventh indication field and an eighth indication field
  • the DCI further includes: a ninth indication field; wherein, the seventh indication field It is used to indicate that the uplink transmission is sent to STRP or MTRP.
  • the eighth indication field is used to indicate that when the uplink transmission is sent to the STRP, the target SRS resource set corresponding to the uplink transmission is used.
  • the ninth indication field is used to indicate that when the uplink transmission is sent to the STRP, SRS resources in the target SRS resource set corresponding to uplink transmission.
  • the eighth indication field is the first SRI field in the DCI
  • the ninth indication field is the second SRI field in the DCI.
  • the number of bits occupied by the first SRI field is related to N2 ; wherein, N2 indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field includes Number of SRS resources.
  • the number of bits occupied by the first SRI field is
  • the number of bits occupied by the first SRI field is related to N 2 and L max ; wherein, N 2 represents the SRS corresponding to the first SRI field in the MTRP scenario.
  • the number of SRS resources included in the resource set, and L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the first SRI field is
  • the number of bits occupied by the first SRI field is related to N 1max ; wherein, N 1max indicates that in the MTRP scenario, the SRS resource set corresponding to the first SRI field corresponds to The number of SRS resource combinations corresponding to the layer with the largest number of SRS resource combinations.
  • the number of bits occupied by the first SRI field is
  • the seventh indication field is used to indicate that uplink transmission is sent to the STRP
  • 1 bit in the first SRI field is used to indicate the target SRS resource set
  • the first SRI The other bits in the field are padded with 0s.
  • the number of bits occupied by the second SRI field is related to N 3 and N max ; wherein, N 3 represents the SRS resource corresponding to the second SRI field in the MTRP scenario
  • the number of SRS resources included in the set, and N max represents the larger of the number of SRS resources included in the two SRS resource sets.
  • the number of bits occupied by the second SRI field is
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • the number of bits occupied by the second SRI field is related to N 3 , N max and L max ; wherein, N 3 represents that in the MTRP scenario, the second SRI field
  • N 3 represents that in the MTRP scenario, the second SRI field
  • N max represents the larger of the number of SRS resources included in the two SRS resource sets
  • L max represents the maximum number of layers supported by the terminal device.
  • the number of bits occupied by the second SRI field is
  • the number of bits occupied by the second SRI field is related to N 2max , N max and L max ; wherein, N 2max indicates that in the MTRP scenario, the second SRI field
  • N 2max indicates that in the MTRP scenario, the second SRI field
  • N max represents the larger of the number of SRS resources included in the two SRS resource sets
  • L max represents the maximum number of layers supported by the terminal device .
  • the number of bits occupied by the second SRI field is
  • the seventh indication field is used to indicate that when uplink transmission is sent to STRP, the The bit is used to indicate the SRS resource in the target SRS resource set, and other bits in the second SRI field are filled with 0.
  • the eighth indication field is the first TPMI field in the DCI
  • the ninth indication field is the second TPMI field in the DCI.
  • both SRS resource sets are used for codebook transmission, or both are used for non-codebook transmission.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 600 may correspond to the network device in the method embodiment corresponding to FIG. 4 of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 600 are for the purpose of realizing the above-mentioned figure. 4
  • the corresponding process of the network device in the corresponding method embodiment is not repeated here for brevity.
  • FIG. 7 is a schematic structural diagram of a communication device 700 provided by an embodiment of the present application.
  • the communication device 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 700 may further include a memory 720 .
  • the processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 700 may specifically be the network device in this embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 700 may specifically be the terminal device of the embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which is not repeated here for brevity. .
  • FIG. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 800 shown in FIG. 8 includes a processor 810, and the processor 810 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 800 may further include a memory 820 .
  • the processor 810 may call and run a computer program from the memory 820 to implement the methods in the embodiments of the present application.
  • the memory 820 may be a separate device independent of the processor 810 , or may be integrated in the processor 810 .
  • the apparatus 800 may further include an input interface 830 .
  • the processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
  • the apparatus 800 may further include an output interface 840 .
  • the processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 9 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 9 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 920 can be used to implement the corresponding functions implemented by the network device or the base station in the above method. Repeat.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device or the base station in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device or the base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device or the base station in the embodiments of the present application, and when the computer program runs on the computer, the computer can execute the corresponding methods implemented by the network device or the base station in each method of the embodiments of the present application.
  • the process for the sake of brevity, will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de communication sans fil, un dispositif terminal, et un dispositif réseau. Au moins un champ d'indication dans des DCI est utilisé pour indiquer qu'une transmission de liaison montante est envoyée à un STRP ou à un MTRP, et lorsque la transmission de liaison montante est envoyée au STRP ou au MTRP, indiquer un ensemble de ressources SRS correspondant à la transmission de liaison montante.
PCT/CN2021/091599 2021-04-30 2021-04-30 Procédé de communication sans fil, dispositif terminal, et dispositif réseau WO2022227033A1 (fr)

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CN202180076904.0A CN116848907A (zh) 2021-04-30 2021-04-30 无线通信方式、终端设备和网络设备
PCT/CN2021/091599 WO2022227033A1 (fr) 2021-04-30 2021-04-30 Procédé de communication sans fil, dispositif terminal, et dispositif réseau

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