WO2022227041A1 - 上行传输方法、终端设备和网络设备 - Google Patents
上行传输方法、终端设备和网络设备 Download PDFInfo
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- WO2022227041A1 WO2022227041A1 PCT/CN2021/091621 CN2021091621W WO2022227041A1 WO 2022227041 A1 WO2022227041 A1 WO 2022227041A1 CN 2021091621 W CN2021091621 W CN 2021091621W WO 2022227041 A1 WO2022227041 A1 WO 2022227041A1
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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Definitions
- the embodiments of the present application relate to the field of communications, and in particular, to an uplink transmission method, a terminal device, and a network device.
- uplink transmission based on multi Transmission Receive Point (MTRP) is introduced.
- the network device can configure up to two Sounding Reference Signal (SRS) resource sets for the terminal device for MTRP-based uplink transmission.
- SRS Sounding Reference Signal
- the target SRS resources in the two SRS resource sets are indicated by setting two SRS resource indicator (SRS Resource Indicator, SRI) fields in the downlink control information (Downlink Control Information, DCI).
- SRS Resource Indicator, SRI SRS Resource Indicator
- the terminal device can support dynamic switching of uplink transmission based on MTRP and Single Transmission Receive Point (STRP), therefore, the dynamic switching between supporting uplink transmission based on STRP and line transmission based on MTRP In the case of , how to indicate the target SRS resource corresponding to the uplink transmission is an urgent problem to be solved.
- STRP Single Transmission Receive Point
- the present application provides an uplink transmission method, terminal device and network device, which can indicate the target SRS resource of uplink transmission based on STRP or MTRP.
- a first aspect provides an uplink transmission method, including: a terminal device receives downlink control information DCI sent by a network device, the DCI is used to schedule the terminal device to send uplink transmission, the DCI includes first indication information and a first Two indication information; wherein, the first indication information is used to indicate a target sounding reference signal SRS resource set corresponding to the uplink transmission, and the target SRS resource set includes at least one of a first SRS resource set and a second SRS resource set , the target SRS resource set is the SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to a single transceiver point STRP or a multi-transceiver point MTRP; the second indication information is used to determine that the uplink transmission is in the The target SRS resource corresponding to the target SRS resource set.
- an uplink transmission method including: a network device sends downlink control information DCI to a terminal device, where the DCI is used to schedule the terminal device to send uplink transmission, the DCI includes first indication information and second indication information; wherein the first indication information is used to indicate a target sounding reference signal SRS resource set corresponding to the uplink transmission, and the target SRS resource set includes at least one of a first SRS resource set and a second SRS resource set; The second indication information is used to determine a target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- a terminal device for executing the method in the above-mentioned first aspect or each implementation manner thereof.
- the terminal device includes a functional module for executing the method in the above-mentioned first aspect or each implementation manner thereof.
- a network device for executing the method in the second aspect or each of its implementations.
- the network device includes functional modules for executing the methods in the second aspect or the respective implementation manners thereof.
- 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.
- a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
- the chip includes: a processor for invoking and running a computer program from a memory, so that a device in which the device is installed 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 causing a computer to execute the method in any one of the above-mentioned first to second aspects or the implementations thereof.
- 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 network device indicates the target SRS resource set of the uplink transmission based on SRTP or MTRP through the first indication information in the DCI for scheduling uplink transmission, and indicates that the uplink transmission is in the target SRS resource set through the second indication information
- the corresponding target SRS resource so that the terminal device can determine the target SRS resource for uplink transmission according to the first indication information and the second indication information, which can ensure that the terminal device and the network device have the same understanding of the target SRS resource for uplink transmission, In this way, the reliability of uplink transmission is ensured.
- 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 a schematic interaction diagram of an uplink transmission method provided according to an embodiment of the present application.
- FIG. 5 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
- FIG. 6 is a schematic block diagram of a network device provided according to an embodiment of the present application.
- FIG. 7 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
- FIG. 8 is a schematic block diagram of a chip provided according to an embodiment of the present application.
- FIG. 9 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- CDMA 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 New Radio
- NTN Non-Terrestrial Networks
- UMTS Universal Mobile Telecommunication System
- WLAN Wireless Local Area Networks
- Wireless Fidelity Wireless Fidelity
- WiFi fifth-generation communication
- D2D Device to Device
- M2M Machine to Machine
- MTC Machine Type Communication
- V2V Vehicle to Vehicle
- V2X Vehicle to everything
- 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
- the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.
- the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the 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.
- 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.
- the terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (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, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
- PLMN Public Land Mobile Network
- the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).
- the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- a mobile phone Mobile Phone
- a tablet computer Pad
- a computer with a wireless transceiver function a virtual reality (Virtual Reality, VR) terminal device
- augmented reality (Augmented Reality, AR) terminal Equipment wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.
- 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.
- the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks
- the network device may have a mobile feature, for example, the network device may be a mobile device.
- the network device may be a satellite or a balloon station.
- the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc.
- the network device may also be a base station set in a location such as land or water.
- a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device (
- the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell).
- Pico cell Femto cell (Femto cell), etc.
- These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
- 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.
- the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship.
- a indicates B it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
- corresponding may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.
- predefinition may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices).
- the implementation method is not limited.
- predefined may refer to the definition in the protocol.
- the "protocol” may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.
- 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:
- SRS can be used for channel state information (Channel State Information, 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.
- the difference between the non-codebook-based uplink transmission scheme and the codebook-based uplink transmission scheme is that the precoding of the non-codebook-based uplink transmission scheme is no longer limited to the limited candidate set based on the fixed codebook, and the terminal equipment is based on channel reciprocity. determine the uplink precoding matrix. If the channel reciprocity is good enough, the terminal device can obtain better uplink precoding. Compared with the transmission scheme based on the codebook, the overhead of precoding indication can be saved, and better performance can be obtained at the same time.
- FIG. 2 is a schematic flowchart of a non-codebook-based uplink transmission scheme. As shown in FIG. 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 used in 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 an SRS parameter from the SRS set according to the channel measurement result, wherein the SRS parameter includes at least one of the following: SRS resources, number of transmission layers, Demodulation reference signal (Demodulation Reference Sgnal, DMRS) port indication information, PUSCH resource allocation and corresponding modulation and coding strategy (Modulation and Coding Scheme, MCS) level.
- SRS parameters includes at least one of the following: SRS resources, number of transmission layers, Demodulation reference signal (Demodulation Reference Sgnal, DMRS) port indication information, PUSCH resource allocation and corresponding modulation and coding strategy (Modulation and Coding Scheme, MCS) level.
- SRS parameters includes at least one of the following: SRS resources, number of transmission layers, Demodulation reference signal (Demodulation Reference Sgnal, DMRS) port indication information, PUSCH resource allocation and corresponding modulation and coding strategy (Modulation and Coding Scheme, MCS) level.
- 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, 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 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 demodulates and decodes the data of the PUSCH.
- 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 by the network device.
- the network device measures a channel of at least one SRS, obtains a channel measurement result, and selects an SRS parameter from the SRS set according to the channel measurement result, where the SRS parameter includes at least one of the following: SRS resources, TPMI, DMRS Port indication information, PUSCH resource allocation and corresponding MCS level.
- 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 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 TPMI to select the PUSCH precoder from the codebook .
- 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 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, so the SRI 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 for scheduling PUSCH.
- DCI format 0_1 and DCI format 0_2 there is an SRI field that 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 domain occupies 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.
- N SRS is the number of SRS resources in the SRS resource set configured for non-codebook transmission.
- each SRI field corresponds to one TRP
- the frame of the SRI field may refer to the frame of the SRI field in R15 or R16.
- each SRI field corresponds to one TRP
- the frame of the SRI field may refer to the frame of the SRI field in R15 or R16.
- the same number of layers is used to support repeated transmissions.
- FIG. 4 is a schematic interaction diagram of an uplink transmission method 400 according to an embodiment of the present application. As shown in FIG. 4 , the method 400 includes the following contents:
- the terminal device receives downlink control information DCI sent by the network device, where the DCI is used to schedule the terminal device to send uplink transmission, and the DCI includes first indication information and second indication information.
- the first indication information is used to indicate a target sounding reference signal SRS resource set corresponding to the uplink transmission, and the target SRS resource set includes at least one of a first SRS resource set and a second SRS resource set .
- the target SRS resource set is an SRS resource set corresponding to the uplink transmission when the uplink transmission is sent to a single transceiver point STRP or a multiple transceiver point MTRP.
- the second indication information is used to determine a target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the present application only takes two SRS resource sets configured on the terminal device as an example for description.
- the terminal device may also be configured with more SRS resource sets.
- a third The SRS resource set, the fourth SRS resource set, etc., the specific resource indication methods are similar, and are not repeated here for brevity.
- the number of the target SRS resource sets is used to indicate that the target TRP of the uplink transmission is STRP or MTRP. For example, if the number of the target SRS resource sets is one, it means that the target TRP of the uplink transmission is STRP, and if the number of the target SRS resource sets is multiple, it means that the target TRP of the uplink transmission is MTRP.
- the first indication information is further used to indicate that the target TRP of the uplink transmission is STRP or MTRP. That is, the first indication information may be used to indicate the target TRP of the uplink transmission and the target SRS resource set corresponding to the uplink transmission.
- the target TRP of the uplink transmission is STRP or MSTR may be indicated by display, or may also be determined according to the number of target SRS resource sets, which is not limited in this application.
- the first indication information may multiplex an existing field in the DCI, such as a reserved field or reserved bits.
- the first indication information may be a newly added field in the DCI.
- a new field may be added to the DCI to indicate the target SRS resource set corresponding to the uplink transmission scheduled by the DCI, or a new field may be added to the DCI to indicate the target TRP of the uplink transmission and the uplink transmission The corresponding target SRS resource set.
- the second indication information may be carried by at least one domain in the DCI.
- the first indication information and the second indication information are carried in different fields in the DCI.
- the first indication information is 2 bits, or may be other bits, which can be specifically determined according to the content to be indicated.
- the target TRP and the target SRS resource set of the uplink transmission are indicated by different values of the 2 bits.
- the value of 00 indicates that the target TRP is STRP
- the target SRS resource set is the first SRS resource set
- the value of 01 indicates that the target TRP is STRP
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set
- a value of 10 indicates that the target TRP is an MTRP
- the target SRS resource set corresponding to the uplink transmission includes a first SRS resource set and a second SRS resource set.
- the terminal device may also receive configuration information of the network device for uplink transmission, such as codebook-based transmission or non-codebook-based transmission, and information on candidate SRS resource sets, such as including the first An SRS resource set and the second SRS resource set, and information on SRS resources included in the candidate SRS resource set, such as SRS resources included in the first SRS resource set and the second SRS resource set, and the like.
- configuration information of the network device for uplink transmission such as codebook-based transmission or non-codebook-based transmission
- candidate SRS resource sets such as including the first An SRS resource set and the second SRS resource set
- SRS resources included in the candidate SRS resource set such as SRS resources included in the first SRS resource set and the second SRS resource set, and the like.
- the uplink transmission may be codebook-based PUSCH transmission, or non-codebook-based PUSCH transmission, such as codebook-based or non-codebook-based PUSCH retransmission.
- the terminal device sends the same uplink transmission, eg, the same PUSCH, through the multiple SRS resources in the multiple SRS resource sets.
- the second indication information in a codebook-based transmission mode, is used to determine a target SRS resource in the target SRS resource set, and in a non-codebook-based transmission mode, the second indication information is used to determine the target SRS resource in the target SRS resource set.
- the second indication information is used to determine the layer information of the uplink transmission and the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the method 400 further includes:
- the second indication information includes multiple resource indication information, and when the target TRP is MTRP, or in other words, when the target SRS resource set includes multiple SRS resource sets, the multiple SRS resource sets
- the resource indication information is in one-to-one correspondence with the multiple SRS resource sets, and each resource indication information is used to determine the target SRS resource in the corresponding SRS resource set.
- the second indication information includes first resource indication information and second resource indication information.
- the first resource indication information corresponds to the first SRS resource set
- the second resource indication information corresponds to the second resource set.
- SRS resource set the first resource indication information is used to determine the target SRS resource in the first SRS resource set
- the second resource indication information is used to determine the target SRS resource in the second SRS resource set.
- the first SRS resource set is a first SRS resource set in the plurality of SRS resource sets
- the second SRS resource set is a second SRS resource set in the plurality of SRS resource sets
- the first resource indication information is the first resource indication information in the DCI
- the second resource indication information is the second resource indication information in the DCI. That is, the target SRS resources in the corresponding SRS resource sets in the multiple SRS resource sets may be sequentially indicated through the resource indication information in the DCI.
- the first resource indication information is carried in a first SRS resource indication field in the DCI
- the second resource indication information is carried in a second SRS resource indication field in the DCI.
- the first SRS resource indication field may be the first SRS resource indication field in the DCI
- the second SRS resource indication field may be the second SRS resource indication field in the DCI.
- the first resource indication information is carried in a first Transmission Precoding Matrix Indicator (TPMI) field in the DCI
- the second resource indication information is carried in a first transmission precoding matrix indicator (TPMI) field in the DCI.
- TPMI Transmission Precoding Matrix Indicator
- the case where the target SRS resource set includes one SRS resource set, or in other words, the case where the target TRP corresponding to uplink transmission is a STRP is denoted as a STRP scenario
- the target SRS resource set includes multiple SRS resource sets, or in other words, the case where the target TRP corresponding to the uplink transmission is an MTRP is referred to as an MTRP scenario.
- Embodiment 1 In an STMP scenario, SRS resources in different target SRS resource sets are indicated by the same resource indication information.
- This Embodiment 1 can be applied to codebook-based uplink transmission.
- the terminal device determines the target SRS resource in the target SRS resource set according to the first resource indication information.
- the first resource indication information is used to determine the target SRS resource in the target SRS resource set.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the target SRS resource in the target SRS resource set according to the first resource indication information;
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set
- the target SRS resource in the target SRS resource set is determined according to the first resource indication information.
- the terminal device does not parse the second resource indication information.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to the second SRS resource set
- the first resource indication information is used to determine the the target SRS resource in the first SRS resource set
- the second resource indication information is used to determine the target SRS resource in the second SRS resource set.
- different SRS resource sets correspond to different resource indication information
- the terminal device determines the target SRS resource in the target SRS resource set according to the resource indication information corresponding to the target SRS resource set.
- the indication manner of the target SRS resource for uplink transmission is described, and below, the number of bits required for the first resource indication information and the second resource indication information to indicate the above content is described.
- the first resource indication information requires 3 bits
- the second resource indication information requires 1 bit
- the first resource indication information requires 3 bits
- the second resource indication information requires 4 bits.
- the number of bits occupied by the first resource indication information is the larger value of the number of bits occupied by the first resource indication information in the two scenarios, that is, 3 bits
- the number of bits occupied by the second resource indication information is in the two scenarios.
- the larger value of the number of bits occupied by the second resource indication information that is, 4 bits.
- the target SRS resources in the two SRS resource sets are indicated by the first resource indication information. Therefore, the first resource indication information is related to the number of SRS resources in the two SRS resource sets.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N max represents the larger value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set.
- the first resource indication information only indicates the target SRS resource in the first SRS resource set, therefore, the first resource indication information is related to the number of SRS resources in the first SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 1 of SRS resources included in the first SRS resource set is the number N 1 of SRS resources included in the first SRS resource set.
- the number of bits occupied by the first resource indication information in the STRP scenario is greater than or equal to the number of bits occupied by the first resource indication information in the MTMP scenario. Therefore, according to the number of bits occupied by the first resource indication information in the STRP scenario Determine the target number of bits occupied by the first resource indication information.
- the target number of bits occupied by the first resource indication information is based on the formula Sure.
- the target SRS resource is not indicated by the second resource indication information. Therefore, the second resource indication can be determined according to the number of bits occupied by the second resource indication information in the MTRP scenario. The target number of bits of information. In the MTRP scenario, the second resource indication information only indicates the target SRS resource in the second SRS resource set, therefore, the second resource indication information is related to the number of SRS resources in the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 2 of SRS resources included in the second SRS resource set is the number N 2 of SRS resources included in the second SRS resource set.
- the target number of bits occupied by the second resource indication information is based on the formula Sure.
- the first resource indication information may be indicated by 1 bit
- the second resource indication Information can be indicated by 1 bit
- the first resource indication information may be indicated by 2 bits
- the The second resource indication information may be indicated by 2 bits.
- Embodiment 2 In an STMP scenario, target SRS resources in different target SRS resource sets are indicated by different resource indication information.
- This embodiment 2 can be applied to codebook-based uplink transmission.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the first SRS resource set
- the second resource indication information is used to determine the target SRS resource on the second SRS resource set.
- each SRS resource set in the multiple SRS resource sets corresponds to corresponding resource indication information, and the resource indication information is used to determine the corresponding SRS The target SRS resource in the resource set.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the target SRS resource in the target SRS resource set according to the first resource indication information;
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set
- the target SRS resource in the target SRS resource set is determined according to the second resource indication information.
- the terminal device determines the target SRS resource in the target SRS resource set according to the resource indication information corresponding to the target SRS resource set.
- the indication manner of the target SRS resource for uplink transmission is described, and below, the number of bits required for the first resource indication information and the second resource indication information to indicate the above content is described.
- each resource indication information indicates a target SRS resource in the corresponding SRS resource set
- the number of bits occupied by the resource indication information is related to the number of SRS resources included in the corresponding SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 1 of SRS resources included in the first SRS resource set is the number N 1 of SRS resources included in the first SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 1 of SRS resources included in the first SRS resource set is the number N 1 of SRS resources included in the first SRS resource set.
- the number of bits occupied by the first resource indication information in the STRP scenario is equal to the number of bits occupied by the first resource indication information in the MTMP scenario.
- the number of bits occupied by the first resource indication information is based on the formula Sure.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 2 of SRS resources included in the second SRS resource set is the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 2 of SRS resources included in the second SRS resource set is the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the second resource indication information is based on the formula Sure.
- both the first resource indication information and the second resource indication information can pass 1 bit indication.
- the first resource indication information may be indicated by 1 bit, and the The second resource indication information may be indicated by 2 bits.
- Embodiment 3 The layer information of uplink transmission is indicated by one resource indication information, and the target SRS resource corresponding to the uplink transmission is indicated by another resource indication information.
- the third embodiment can be applied to non-codebook-based uplink transmission.
- the first resource indication information is used to determine the layer information of the uplink transmission
- the second resource indication information is used to determine the target corresponding to the uplink transmission in the target SRS resource set SRS resources. That is, the second resource indication information may be used to indicate an SRS resource combination corresponding to the layer information indicated by the first resource indication information.
- the number of SRS resources in uplink transmission represents the number of layers in uplink transmission, that is, in the non-codebook-based transmission mode, the layer information of the uplink transmission may be the Number of SRS resources used for uplink transmission.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The layer information of the transmission and the target SRS resource of the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the uplink transmission in the second SRS The target SRS resource in the resource set.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The transmitted layer information and the target SRS resource in the first SRS resource set for uplink transmission
- the second resource indication information is used for the target SRS resource in the second SRS resource set for uplink transmission.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second The resource indication information is used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the second SRS resource set.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second resource indication information may be used to indicate the The target SRS resource information of the uplink transmission in the second SRS resource set, that is, the second resource indication information may only indicate the resource combination, but not the layer information of the uplink transmission.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the layer information of the uplink transmission according to the first resource indication information, and determine the uplink transmission according to the second resource indication information transmitting the target SRS resource in the first SRS resource set;
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set, determine the layer information of the uplink transmission according to the first resource indication information, and determine the uplink transmission according to the second resource indication information
- the target SRS resource in the second SRS resource set is transmitted.
- the terminal device determines the layer information of the uplink transmission according to the first resource indication information, and determines that the uplink transmission is at the destination according to the second resource indication information. Describe the target SRS resource in the target SRS resource set.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the SRS resource set, or, Cannot exceed the maximum configurable number of layers of the SRS resource set.
- the maximum number of layers for uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the first SRS resource set (or in other words, the number of SRS resources) and the number of ports included in the second SRS resource set, whichever is smaller.
- the maximum number of layers for uplink transmission may be determined according to the formula min(L max , N min ), where N min represents the number N 1 of SRS resources included in the first SRS resource set and the The smaller value of the number N 2 of SRS resources included in the second SRS resource set.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers Lmax supported by the terminal device, and cannot exceed the number of layers included in the first SRS resource set.
- Mode 1 For the STRP scenario, the maximum number of layers for uplink transmission can be determined according to the formula min(L max , N min ), where N min represents the number of SRS resources N 1 included in the first SRS resource set and the second The smaller value of the number N 2 of SRS resources included in the SRS resource set.
- the maximum number of layers for uplink transmission can be determined according to the formula min (L max , No ), where No represents the number of SRS resources included in the target SRS resource set.
- the indication manner of the target SRS resource for uplink transmission is described, and below, the number of bits required for the first resource indication information and the second resource indication information to indicate the above content is described.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 2 of SRS resources included in the second SRS resource set is the number N 2 of SRS resources included in the second SRS resource set.
- the maximum number of layers in uplink transmission is the same as the SRS resources of the target SRS resource set
- the number of bits occupied by the layer information under the SRS resource set that includes a larger number of SRS resources needs to be considered.
- the maximum number of layers for uplink transmission is related to N min , it is necessary to consider the number of bits occupied by the layer information under the fewer SRS resource sets.
- the number of bits occupied by the first resource indication information may be determined according to Lmax and Nmin , or determined according to Lmax and Nmax , where Nmax represents the number N of SRS resources included in the first SRS resource set 1 and the larger value of the number of SRS resources N 2 included in the second SRS resource set.
- the number of bits occupied by the first resource indication information is based on the formula Sure.
- the maximum number of layers for uplink transmission is limited by the smaller number of ports in the two SRS resource sets.
- the number of bits occupied by the first resource indication information is based on the formula Sure.
- the maximum number of layers for uplink transmission is limited by the number of ports in the target SRS resource set.
- the number of bits occupied by the first resource indication information is based on the total number of SRS resource combinations corresponding to each layer of the uplink transmission under the first SRS resource set. The number is determined.
- each layer number of the uplink transmission may refer to each layer number below the maximum number of layers of the uplink transmission. For example, if the maximum number of layers of the uplink transmission is 2 , each layer number of the uplink transmission may include one layer and two layers of the uplink transmission. For another example, if the maximum number of layers of the uplink transmission is 4, each layer number of the uplink transmission may include There are four cases of one layer, two layers, three layers and four layers of the uplink transmission. Wherein, for the method of determining the maximum number of layers of the uplink transmission, refer to the foregoing related description.
- the number of each layer of uplink transmission may refer to the number of each type of SRS resource corresponding to the uplink transmission, and the number of each type of SRS resource corresponding to the uplink transmission cannot exceed the maximum number of layers of the uplink transmission.
- the number of multiple SRS resources for uplink transmission may include two cases of transmitting the uplink transmission through one SRS resource and transmitting the uplink transmission through two SRS resources.
- the number of multiple SRS resources for uplink transmission may include transmission of the uplink transmission through one SRS resource, transmission of the uplink transmission through two SRS resources, and transmission of the uplink transmission through three SRS resources. There are four cases of resource transmission of the uplink transmission and transmission of the uplink transmission through four SRS resources.
- each layer number of the uplink transmission may also be referred to as each rank (per rank) of the uplink transmission.
- the SRS resource combination corresponding to each layer number of the uplink transmission may refer to an SRS resource combination that may be used when transmitting the uplink transmission through SRS resources of the same number of SRS resources.
- the first SRS resource set includes four SRS resources, which are SRS resources 1 to 4 respectively, and the maximum number of layers for uplink transmission is 4, the SRS corresponding to each layer number of uplink transmission under the first SRS resource set is described. How to determine the total number of resource combinations. As shown in Table 1, when uplink transmission is performed through one SRS resource, uplink transmission can be performed through any one of four SRS resources, that is, layer 1 needs to indicate 4 types of SRS resources, and when uplink transmission is performed through 2 SRS resources, Uplink transmission can be performed through any combination of two SRS resources among the four SRS resources, that is, the layer 2 needs to indicate 6 types of SRS resource combinations.
- any three of the four SRS resources can be used.
- the SRS resource combination is used for uplink transmission, that is, the 3rd layer needs to indicate 3 SRS resource combinations.
- the uplink transmission can be performed through all the SRS resources in the four SRS resources, that is, the 4th layer needs to indicate one of the SRS resources.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set is based on the formula Sure.
- the number of bits occupied by the first resource indication information is based on the formula Sure.
- the number of bits occupied by the first resource indication information is the same as that of the first resource indication information in the STRP scenario.
- the number of bits occupied and the maximum value of the number of bits occupied by the first resource indication information in the MTRP scenario is the same as that of the first resource indication information in the STRP scenario.
- the number of bits occupied by the first resource indication information may be determined according to the following formula:
- max means to take the maximum value.
- the number of bits occupied by the first resource indication information may be determined according to the following formula:
- max means to take the maximum value.
- the second resource indication information may only indicate the target SRS resource based on the layer information.
- the first resource indication information indicates that the number of layers is 2, one of six SRS resource combinations with the number of layers being 2 may be indicated by the second resource indication information.
- the number of layers corresponding to the maximum number of SRS resource combinations needs to be considered. In other words, in the case of the same number of SRS resources, what is the maximum number of SRS resource combinations.
- the second resource indication information is at least 3 bits.
- the target SRS resources corresponding to the uplink transmission under the two SRS resource sets are indicated by the same resource indication information, it is necessary to consider the maximum number of SRS resource combinations corresponding to the case where the two SRS resources are concentrated in the same number of SRS resources.
- the first SRS resource set includes 4 SRS resources
- the 2 SRS resources correspond to the most SRS resource combinations, that is, 6 resource combinations
- the second SRS resource set includes 3 1 SRS resource
- 1 SRS resource and 2 SRS resources correspond to 3 resource combinations. Therefore, in the case of the same number of SRS resources, the first SRS resource set corresponds to the maximum number of SRS resource combinations, that is, 6 resource combinations. Therefore, at least six resource combinations can be indicated to determine the number of bits of the second resource indication information. , that is, at least 3 bits are required.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N Cmax is the larger value of N C1 and N C2 , where N C1 represents the maximum number of layers corresponding to the first SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission The number of SRS resource combinations, N C2 represents the larger value of the maximum number of SRS resource combinations N C2 corresponding to the second SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission .
- the number of bits occupied by the second resource indication information is based on the formula Sure.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is based on the formula Sure. It should be understood that the determination method of the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set corresponds to each layer number of the uplink transmission under the first SRS resource set. The manner of determining the total number of SRS resource combinations is similar, and for the sake of brevity, details are not repeated here.
- the number of bits occupied by the second resource indication information is based on the formula: Sure.
- the manner of determining the number of bits occupied by the second resource indication information is similar to the manner of determining the number of bits occupied by the first resource indication information in the MTRP scenario, and details are not repeated here.
- the number of bits occupied by the second resource indication information may be based on the number of bits occupied by the second resource indication information in the STRP scenario
- the larger value of the number of bits and the number of bits occupied by the second resource indication information in the MTRP scenario is determined, for example, according to the following formula:
- max means to take the maximum value.
- the second resource indication information may only indicate resource information, so that the bits occupied by the second resource indication information
- the number may be determined according to the maximum number of SRS resource combinations corresponding to the same number of SRS resources in the second SRS resource set. Taking Table 1 as an example, the second SRS resource set includes 4 SRS resources. If the number of layers is 4, the second resource indication information needs to indicate 15 SRS resource combinations, or it may only indicate the same number of resources. , corresponding to the SRS resource combination with the most amount, that is, 6 resource combinations, the second resource indication information may be 4 bits or 3 bits.
- the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission may be 2, and 2 layers may be indicated by 1 bit.
- the maximum number of layers for uplink transmission is 2, and for the first SRS resource set, at most 3 SRS resource combinations need to be indicated, and at least 2 bits are required. Therefore, it can be determined that the first resource indication information is 2 bits.
- the maximum number of layers in uplink transmission may be 2, and N Cmax may be 2, and 1 bit may be used to indicate 2 layers.
- the maximum number of layers in uplink transmission is 2
- the second SRS resource set at most 3 SRS resource combinations need to be indicated, and at least 2 bits are required. Therefore, it can be determined that the second resource indication information is 2 bits.
- the second SRS resource set includes 4 SRS resources, and the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission may be 2 or 4. Taking 2 as an example, the first SRI resource indication information may indicate 2 layers through 1 bit. For the MTRP scenario , the maximum number of layers for uplink transmission is 2. Corresponding to the first SRS resource set, at most 3 SRS resource combinations need to be indicated, and at least 2 bits are required. Therefore, it can be determined that the first resource indication information is 2 bits.
- the maximum number of layers for uplink transmission may be 2 or 4. Taking 2 as an example, N Cmax is 2, the second SRI resource indication information may be indicated by 1 bit, For the MTRP scenario, the maximum number of layers for uplink transmission is 2. For the second SRS resource set, at most 3 SRS resource combinations need to be indicated, and at least 2 bits are required. Therefore, it can be determined that the second resource indication information is 2 bits.
- Embodiment 4 In the STRP scenario, the layer information of uplink transmission and the target SRS resource corresponding to the uplink transmission in the target SRS resource set are determined through the same resource indication information.
- Embodiment 4 may be applicable to non-codebook-based uplink transmission.
- the first resource indication information is used to determine the layer information of uplink transmission and the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The layer information of the transmission and the target SRS resource of the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the uplink transmission in the second SRS The target SRS resource in the resource set.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The transmitted layer information and the target SRS resource of the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the target SRS resource of the uplink transmission in the second SRS resource set.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second The resource indication information is used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the second SRS resource set.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second resource indication information may be used to indicate the The target SRS resource information of the uplink transmission in the second SRS resource set, that is, the second resource indication information may only indicate the resource combination, but not the layer information of the uplink transmission.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the layer information of the uplink transmission and the layer information of the uplink transmission in the first SRS resource set according to the first resource indication information the target SRS resource; or
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set, determine the layer information of the uplink transmission and the layer information of the uplink transmission in the second SRS resource set according to the first resource indication information the target SRS resource.
- the terminal device determines the layer information of the uplink transmission and the layer information of the uplink transmission in the target SRS resource set according to the first resource indication information.
- Target SRS resource the layer information of the uplink transmission and the layer information of the uplink transmission in the target SRS resource set according to the first resource indication information.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the SRS resource set, or, Cannot exceed the maximum configurable number of layers of the SRS resource set.
- the maximum number of layers for uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the first SRS resource set (or in other words, the number of SRS resources) and the number of ports included in the second SRS resource set, whichever is smaller.
- the maximum number of layers for uplink transmission may be determined according to the formula min(L max , N min ), where N min represents the number N 1 of SRS resources included in the first SRS resource set and the The smaller value of the number N 2 of SRS resources included in the second SRS resource set.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers Lmax supported by the terminal device, and cannot exceed the number of layers included in the first SRS resource set.
- the maximum number of layers for uplink transmission can be determined according to the formula min(L max , N min ), where N min represents the number N 1 of SRS resources included in the first SRS resource set and the number N 1 of the first SRS resource set. The smaller value of the number of SRS resources N 2 included in the two SRS resource sets.
- the maximum number of layers for uplink transmission may be determined according to the formula min (L max , No ), where No represents the number of SRS resources included in the target SRS resource set.
- the indication manner of the target SRS resource for uplink transmission is described, and below, the number of bits required for the first resource indication information and the second resource indication information to indicate the above content is described.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number N 2 of SRS resources included in the second SRS resource set is the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the first resource indication information is based on the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set The larger value of the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is determined.
- the number of bits occupied by the first resource indication information is based on Sure.
- the larger value of the total number of N max represents the larger value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set is based on the formula Sure.
- the number of bits occupied by the first resource indication information is based on the formula: Sure.
- the number of bits occupied by the first resource indication information is based on the number of bits occupied by the first resource indication information in the STRP scenario It is determined by the larger value of the number of bits and the number of bits occupied by the first resource indication information in the MTRP scenario. For example, it is determined according to the following formula:
- max means to take the maximum value.
- the target SRS resource is not indicated by the second resource indication information, so the second resource indication information may be determined according to the number of bits occupied by the second resource indication information in the MTRP scenario target number of bits.
- the second resource indication information is related to the number of SRS resources in the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is based on the formula Sure.
- the number of bits occupied by the second resource indication information is based on the formula Sure.
- the second resource indication information may only indicate resource information, so that the bits occupied by the second resource indication information
- the number may be determined according to the maximum number of SRS resource combinations corresponding to the same number of SRS resources in the second SRS resource set. Taking Table 1 as an example, the second SRS resource set includes 4 SRS resources. If the number of layers is 4, the second resource indication information needs to indicate 15 SRS resource combinations, or it may only indicate the same number of resources. , corresponding to the SRS resource combination with the most amount, that is, 6 resource combinations, the second resource indication information may be 4 bits or 3 bits.
- the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission is 2, a maximum of 3 SRS resource combinations need to be indicated, and a minimum of 2-bit indication is required.
- the maximum number of layers for uplink transmission is 2
- the first SRS resource set at most 3 SRS resource combinations need to be indicated, and the first resource indication information requires at least 2 bits. Therefore, it can be determined that the first resource indication information is 2 bits.
- the first resource indication information in the STRP scenario, no parsing is required.
- the maximum number of layers for uplink transmission is 2.
- the second SRS resource set a maximum of 3 SRS resource combinations need to be indicated.
- the resource indication information requires at least 2 bits, therefore, it can be determined that the first resource indication information is 2 bits.
- the second SRS resource set includes 4 SRS resources, and the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission is 2 or 4. Taking 4 as an example, when determining the number of bits of the first resource indication information in the STRP scenario, the number of resources needs to be considered. More SRS resource sets, that is, the second SRS resource set, need to indicate at most 15 SRS resource combinations, and at least 4 bits are required to indicate. If three SRS resource combinations are indicated, the first resource indication information requires at least 4 bits.
- the second resource indication information in the STRP scenario, no parsing is required.
- the maximum number of layers for uplink transmission is 2.
- a maximum of 10 SRS resource combinations need to be indicated.
- the resource indication information requires at least 4 bits.
- Embodiment 5 In the STRP scenario, different SRS resource sets correspond to corresponding resource indication information, and the resource indication information corresponding to the SRS resource sets indicates the layer information of uplink transmission and the target SRS resources of the uplink transmission in the SRS resource set .
- Embodiment 5 may be applicable to non-codebook-based uplink transmission.
- the first resource indication information corresponds to the first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine uplink transmission layer information and The target SRS resource corresponding to the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the corresponding target SRS resource of the uplink transmission in the second SRS resource set.
- Target SRS resource is used to determine the layer information of the uplink transmission and the corresponding target SRS resource of the uplink transmission in the second SRS resource set.
- the first resource indication information corresponds to the first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine layer information for uplink transmission and the target SRS resource corresponding to the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the target SRS resource corresponding to the uplink transmission in the second SRS resource set.
- the second resource indication information may only indicate the information of the target SRS resource, but does not indicate the layer information of uplink transmission. In this case, it can be considered that the use of Layer information corresponding to uplink transmission of different SRS resource sets is the same.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The layer information of the transmission and the target SRS resource of the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the uplink transmission in the second SRS The target SRS resource in the resource set.
- the first resource indication information corresponds to a first SRS resource set
- the second resource indication information corresponds to a second SRS resource set
- the first resource indication information is used to determine the uplink The transmitted layer information and the target SRS resource of the uplink transmission in the first SRS resource set
- the second resource indication information is used to determine the target SRS resource of the uplink transmission in the second SRS resource set.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second The resource indication information is used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the second SRS resource set.
- the first resource indication information may be used to indicate the layer information of the uplink transmission and the target SRS resource information of the uplink transmission in the first SRS resource set
- the second resource indication information may be used to indicate the The target SRS resource information of the uplink transmission in the second SRS resource set, that is, the second resource indication information may only indicate the resource combination, but not the layer information of the uplink transmission.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the layer information of the uplink transmission and the layer information of the uplink transmission in the first SRS resource set according to the first resource indication information the target SRS resource; or
- the target SRS resource set corresponding to the uplink transmission is the second SRS resource set, determine the layer information of the uplink transmission and the layer information of the uplink transmission in the second SRS resource set according to the second resource indication information the target SRS resource.
- S420 may include:
- the target SRS resource set corresponding to the uplink transmission is the first SRS resource set, determine the layer information of the uplink transmission and the layer information of the uplink transmission in the first SRS resource set according to the first resource indication information the target SRS resource; or
- the layer information of the uplink transmission is determined according to the first resource indication information, and the uplink transmission is determined according to the second resource indication information the target SRS resource in the second SRS resource set.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the SRS resource set, or, Cannot exceed the maximum configurable number of layers of the SRS resource set.
- the maximum number of layers for uplink transmission cannot exceed the maximum number of layers L max supported by the terminal device, and cannot exceed the number of ports included in the first SRS resource set (or in other words, the number of SRS resources) and the number of ports included in the second SRS resource set, whichever is smaller.
- the maximum number of layers for uplink transmission may be determined according to the formula min(L max , N min ), where N min represents the number N 1 of SRS resources included in the first SRS resource set and the The smaller value of the number N 2 of SRS resources included in the second SRS resource set.
- the maximum number of layers in the uplink transmission cannot exceed the maximum number of layers Lmax supported by the terminal device, and cannot exceed the number of layers included in the first SRS resource set.
- Mode 1 For the STRP scenario, the maximum number of layers for uplink transmission can be determined according to the formula min(L max , N min ), where N min represents the number of SRS resources N 1 included in the first SRS resource set and the second The smaller value of the number N 2 of SRS resources included in the SRS resource set.
- the maximum number of layers for uplink transmission can be determined according to the formula min (L max , No ), where No represents the number of SRS resources included in the target SRS resource set.
- the indication manner of the target SRS resource for uplink transmission has been described above, and the following describes the number of bits required by the first resource indication information and the second resource indication information to indicate the above content.
- the second SRS resource set includes 4 SRS resources, and the maximum number of layers supported by the terminal device is 4. .
- the maximum number of configurable layers for the first SRS resource set is 2, and the maximum number of configurable layers for the second SRS resource set is also 2. If the maximum number of layers for uplink transmission is determined based on the foregoing method 2, the maximum number of configurable layers for the first SRS resource set is 2, and the maximum number of configurable layers for the second SRS resource set is 4.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set may be based on the formula Sure. For example, when the maximum number of layers for uplink transmission is determined in mode 1, according to Determine the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set may be based on the formula Sure. For example, when the maximum number of layers for uplink transmission is determined in mode 2, according to Determine the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set.
- the number of bits occupied by the first resource indication information is based on the following formula: or Sure.
- the number of bits occupied by the first resource indication information may be based on Sure.
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set may be based on the formula Sure. For example, when the maximum number of layers for uplink transmission is determined in mode 1, according to this formula Sure.
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set may be based on the formula Sure. For example, when the maximum number of layers for uplink transmission is determined by using Mode 2, according to this formula Sure.
- the number of bits occupied by the second resource indication information is based on or, Sure.
- the number of bits occupied by the second resource indication information may be based on the formula Sure.
- the second SRS resource set includes 4 SRS resources. If the number of layers for uplink transmission is 4, the second resource indication information needs to indicate 15 SRS resource combinations, and the second resource indication information can be: 4 bits.
- the second resource indication information may only indicate resource information, so that the bits occupied by the second resource indication information
- the number may be determined according to the maximum number of SRS resource combinations corresponding to the same number of SRS resources in the second SRS resource set.
- the second resource indication information may be based on Determine, where N C2 represents the maximum number of SRS resource combinations corresponding to the second SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission.
- the second SRS resource set includes 4 SRS resources. If the first resource indication information indicates that the maximum number of layers for uplink transmission is 4, the second resource indication information may only indicate the same number of resources. Next, the corresponding most SRS resource combinations, that is, 6 resource combinations, the second resource indication information may be 3 bits.
- the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission is 2, at most 3 SRS resource combinations need to be indicated, and the first resource indication information requires at least 2 bits of indication.
- the uplink transmission The maximum number of layers is 2, and at most 3 SRS resource combinations need to be indicated, and the first resource indication requires at least 2 bits. Therefore, it can be determined that the first resource indication information is 2 bits.
- the maximum number of layers for uplink transmission is 2, and a maximum of 3 SRS resource combinations need to be indicated, so the second resource indication information requires at least 2 bits.
- the uplink transmission The maximum number of layers is 2, and a maximum of 3 SRS resource combinations need to be indicated, and the second resource indication information requires at least 2 bits. Therefore, it can be determined that the second resource indication information is 2 bits.
- the second resource indication information may also only indicate resource information.
- the second resource indication information only needs to indicate at most two SRS resource groups,
- the second resource indication information may be 1 bit, and similarly, in the MTRP scenario, the second resource indication information may also be 1 bit. Then, the target number of bits of the second resource indication information may be 1 bit.
- the second SRS resource set includes 4 SRS resources, and the maximum number of layers supported by the terminal device is 4.
- the maximum number of layers for uplink transmission is 2, at most 3 SRS resource combinations need to be indicated, and the first resource indication information requires at least 2 bits of indication.
- the uplink transmission The maximum number of layers is 2, and at most 3 SRS resource combinations need to be indicated, and the first resource indication requires at least 2 bits. Therefore, it can be determined that the first resource indication information is 2 bits.
- the maximum number of layers for uplink transmission is 2 or 4. Taking 2 as an example, a maximum of 3 SRS resource combinations need to be indicated, and the second resource indication information requires at least 2 bits. In the MTRP scenario, the maximum number of layers for uplink transmission is 2, and at most 3 SRS resource combinations need to be indicated, and the second resource indication information requires at least 2 bits. Therefore, it can be determined that the second resource indication information is 2 bits. Alternatively, since the first resource indication information has indicated layer information, the second resource indication information may also only indicate resource information.
- the second resource indication information only needs to indicate at most two SRS resource groups,
- the second resource indication information may be 1 bit, and similarly, in the MTRP scenario, the second resource indication information may also be 1 bit. Then, the target number of bits of the second resource indication information may be 1 bit.
- the network device when scheduling the uplink transmission, can indicate the target SRS resource set of the uplink transmission and the target SRS resource corresponding to the target SRS resource set of the uplink transmission by scheduling the DCI of the uplink transmission, so that the corresponding target SRS resource is based on STRP or MTRP.
- the terminal equipment can parse the corresponding information in the DCI to obtain the target SRS resources for uplink transmission, so as to ensure that the terminal equipment and the network equipment have the same understanding of the target SRS resources for uplink transmission, and then ensure the uplink transmission. reliability.
- 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 configured to receive downlink control information DCI sent by a network device, where the DCI is used to schedule the terminal device to send uplink transmission, and the DCI includes first indication information and second indication information;
- the first indication information is used to indicate a target sounding reference signal SRS resource set corresponding to the uplink transmission, and the target SRS resource set includes at least one of a first SRS resource set and a second SRS resource set;
- the second indication information is used to determine a target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the number of the target SRS resource sets is used to indicate that the target TRP of the uplink transmission is STRP or MTRP.
- the second indication information includes first resource indication information and second resource indication information, wherein, in the case that the target SRS resource set includes one SRS resource set, the first resource The indication information is used to determine the target SRS resource in the target SRS resource set.
- the terminal device further includes:
- a processing unit configured to determine a target SRS in the target SRS resource set according to the first resource indication information when the target SRS resource set corresponding to the uplink transmission is the first SRS resource set or the second SRS resource set resource.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N max represents the larger value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the first SRI field is based on the formula Sure.
- the second indication information includes first resource indication information and second resource indication information, the first resource indication information corresponds to the first SRS resource set, and the second resource indication information corresponds to the first SRS resource set.
- Two SRS resource sets wherein the first resource indication information is used to determine the target SRS resource on the first SRS resource set, and the second resource indication information is used to determine the target SRS resource on the second SRS resource set SRS resources.
- the number of bits occupied by the first SRI field is based on the formula Determine
- the number of bits occupied by the second SRI field is based on the formula Sure.
- the first SRS resource set and the second SRS resource set are SRS resource sets used for codebook transmission.
- the second indication information includes first resource indication information and second resource indication information, and when the target SRS resource set includes one SRS resource set, the first resource indication information
- the second resource indication information is used for determining the layer information of the uplink transmission, and the second resource indication information is used for determining the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the terminal device further includes:
- a processing unit configured to, when the target SRS resource set corresponding to the uplink transmission is the first SRS resource set or the second SRS resource set, the terminal device determines the target SRS resource set according to the first resource indication information layer information of the uplink transmission, and determine the target SRS resource corresponding to the uplink transmission in the target SRS resource set according to the second resource indication information.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N max means the larger value of N 1 and N 2
- N min means the smaller value of N 1 and N 2
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N Cmax is the larger value of N C1 and N C2 , where N C1 represents the maximum number of layers corresponding to the first SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission The number of SRS resource combinations, N C2 represents the larger value of the maximum number of SRS resource combinations N C2 corresponding to the second SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission ;
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N min represents the number of SRS resources included in the first SRS resource set N 1 and the second The smaller value of the number N 2 of SRS resources included in the SRS resource set.
- the second indication information includes first resource indication information and second resource indication information, and when the target SRS resource set includes one SRS resource set, the first resource indication information used for determining the layer information of the uplink transmission and the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N min represents the smaller of the number of SRS resources included in the first SRS resource set N 1 and the number of SRS resources included in the second SRS resource set N 2
- N min represents the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set and the SRS resource set with more SRS resources in the second SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the required information when the target SRS resource set includes a first SRS resource set and a second SRS resource set The target SRS resource corresponding to the uplink transmission in the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- min means to take the minimum value, means round up, Indicates the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the second indication information includes first resource indication information and second resource indication information, the first resource indication information corresponds to the first SRS resource set, and the second resource indication information Corresponding to the second SRS resource set, the first resource indication information is used to determine the layer information of uplink transmission and the target SRS resource corresponding to the uplink transmission in the first SRS resource set, and the second resource indication information is used to Determine the layer information of the uplink transmission and the target SRS resource corresponding to the uplink transmission in the second SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means to take the maximum value
- means round up Indicates the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set when the target SRS resource set only includes the first SRS resource set
- N min represents the smaller value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- N min represents the smaller value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set
- the first SRS resource set and the second SRS resource set are SRS resource sets used for non-codebook transmission.
- the first resource indication information is carried in the first SRS resource indication field or the first transmission precoding matrix indication TPMI field
- the second resource indication information is carried in the second SRS resource indication field or The second TPMI indication field.
- the first SRS resource indication field is the first SRS resource indication field in the DCI
- the second SRS resource indication field is the second SRS resource indication in the DCI area.
- the first indication information and the second indication information are carried in different fields in the DCI.
- the first indication information is at least 2 bits.
- 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 aforementioned processing unit may be one or more processors.
- terminal device 500 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 500 are respectively for realizing the method shown in FIG. 4 .
- the corresponding process of the terminal device in 400 is not repeated here for brevity.
- FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present application.
- the network device 800 of FIG. 5 includes:
- a communication unit 810 configured to send downlink control information DCI to a terminal device, where the DCI is used to schedule the terminal device to send uplink transmission, and the DCI includes first indication information and second indication information;
- the first indication information is used to indicate a target sounding reference signal SRS resource set corresponding to the uplink transmission, and the target SRS resource set includes at least one of a first SRS resource set and a second SRS resource set;
- the second indication information is used to determine a target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the number of the target SRS resource sets is used to indicate that the target TRP of the uplink transmission is STRP or MTRP.
- the second indication information includes first resource indication information and second resource indication information, wherein, in the case that the target SRS resource set includes one SRS resource set, the first resource The indication information is used to determine the target SRS resource in the target SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N max represents the larger value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set.
- the number of bits occupied by the first SRI field is based on the formula Sure.
- the second indication information includes first resource indication information and second resource indication information, the first resource indication information corresponds to the first SRS resource set, and the second resource indication information corresponds to the first SRS resource set.
- Two SRS resource sets wherein the first resource indication information is used to determine the target SRS resource on the first SRS resource set, and the second resource indication information is used to determine the target SRS resource on the second SRS resource set SRS resources.
- the number of bits occupied by the first SRI field is based on the formula Determine
- the number of bits occupied by the second SRI field is based on the formula Sure.
- the first SRS resource set and the second SRS resource set are SRS resource sets used for codebook transmission.
- the second indication information includes first resource indication information and second resource indication information, and when the target SRS resource set includes one SRS resource set, the first resource indication information
- the second resource indication information is used for determining the layer information of the uplink transmission, and the second resource indication information is used for determining the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N max means the larger value of N 1 and N 2
- N min means the smaller value of N 1 and N 2
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- N Cmax is the larger value of N C1 and N C2 , where N C1 represents the maximum number of layers corresponding to the first SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission The number of SRS resource combinations, N C2 represents the larger value of the maximum number of SRS resource combinations N C2 corresponding to the second SRS resource set in the case of the same number of SRS resources under the maximum number of layers corresponding to the uplink transmission ;
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N min represents the number of SRS resources included in the first SRS resource set N 1 and the second The smaller value of the number N 2 of SRS resources included in the SRS resource set.
- the second indication information includes first resource indication information and second resource indication information, and when the target SRS resource set includes one SRS resource set, the first resource indication information used for determining the layer information of the uplink transmission and the target SRS resource corresponding to the uplink transmission in the target SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means taking the maximum value
- min means taking the minimum value
- N min represents the smaller of the number of SRS resources included in the first SRS resource set N 1 and the number of SRS resources included in the second SRS resource set N 2
- N min represents the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set and the SRS resource set with more SRS resources in the second SRS resource set
- the second resource indication information is used to determine the layer information of the uplink transmission and the required information when the target SRS resource set includes a first SRS resource set and a second SRS resource set The target SRS resource corresponding to the uplink transmission in the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- min means to take the minimum value, means round up, Indicates the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the second indication information includes first resource indication information and second resource indication information, the first resource indication information corresponds to the first SRS resource set, and the second resource indication information Corresponding to the second SRS resource set, the first resource indication information is used to determine the layer information of uplink transmission and the target SRS resource corresponding to the uplink transmission in the first SRS resource set, and the second resource indication information is used to Determine the layer information of the uplink transmission and the target SRS resource corresponding to the uplink transmission in the second SRS resource set.
- the number of bits occupied by the first resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the number of bits occupied by the first resource indication information is determined according to the following formula:
- max means to take the maximum value
- means round up Indicates the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the first SRS resource set when the target SRS resource set only includes the first SRS resource set
- N min represents the smaller value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set
- the number of bits occupied by the second resource indication information is determined according to at least one of the following:
- the transmission mode configured by the network device
- the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set is the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set.
- the number of bits occupied by the second resource indication information is determined according to the following formula:
- N min represents the smaller value of the number N 1 of SRS resources included in the first SRS resource set and the number N 2 of SRS resources included in the second SRS resource set, Indicates the total number of SRS resource combinations corresponding to each layer number of the uplink transmission under the second SRS resource set when the target SRS resource set includes the first SRS resource set and the second SRS resource set.
- the first SRS resource set and the second SRS resource set are SRS resource sets used for non-codebook transmission.
- the first resource indication information is carried in the first SRS resource indication field or the first transmission precoding matrix indication TPMI indication field
- the second resource indication information is carried in the second SRS resource indication field or the second TPMI indication field.
- the first resource indication information is the first SRS resource indication field in the DCI
- the second SRS resource indication field is the second SRS resource indication field in the DCI
- the first indication information and the second indication information are carried in different fields in the DCI.
- the first indication information is at least 2 bits.
- 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 aforementioned processing unit may be one or more processors.
- the network device 800 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 800 are respectively for realizing the method shown in FIG. 4 .
- the corresponding flow of the network device in 400 is not repeated here for brevity.
- FIG. 7 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
- the communication device 600 shown in FIG. 7 includes a processor 610, and the processor 610 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 600 may further include a memory 620 .
- the processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.
- the memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .
- the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 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 630 may include a transmitter and a receiver.
- the transceiver 630 may further include antennas, and the number of the antennas may be one or more.
- the communication device 600 may specifically be the network device in this embodiment of the present application, and the communication device 600 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 600 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
- FIG. 8 is a schematic structural diagram of a chip according to an embodiment of the present application.
- the chip 700 shown in FIG. 8 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 this embodiment of the present application.
- the chip 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 chip 700 may further include an input interface 730 .
- the processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.
- the chip 700 may further include an output interface 740 .
- the processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
- the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.
- the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
- the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
- the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application.
- the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
- 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 in the above method. For brevity, details are not repeated here. .
- 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 in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
- the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application.
- 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 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 in each method of the embodiments of the present application. Repeat.
- 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 in the embodiments of the present application.
- the computer program When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and 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 media include: U disk, mobile hard disk, read-only memory
- ROM Read-Only Memory
- RAM Random Access Memory
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Abstract
Description
SRS资源1 |
SRS资源2 |
SRS资源3 |
SRS资源4 |
SRS资源1和2 |
SRS资源1和3 |
SRS资源1和4 |
SRS资源2和3 |
SRS资源2和4 |
SRS资源3和4 |
SRS资源1和2和3 |
SRS资源1和2和4 |
SRS资源1和3和4 |
SRS资源2和3和4 |
SRS资源1和2和3和4 |
Claims (70)
- 一种上行传输方法,其特征在于,包括:终端设备接收网络设备发送的下行控制信息DCI,所述DCI用于调度所述终端设备发送上行传输,所述DCI包括第一指示信息和第二指示信息;其中,所述第一指示信息用于指示所述上行传输对应的目标探测参考信号SRS资源集,所述目标SRS资源集包括第一SRS资源集和第二SRS资源集中的至少一个,所述目标SRS资源集为所述上行传输发送给单收发点STRP或多收发点MTRP时所述上行传输对应的SRS资源集;所述第二指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求1所述的方法,其特征在于,所述目标SRS资源集的数量用于指示所述上行传输的目标TRP为STRP或MTRP。
- 根据权利要求1或2所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,其中,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述目标SRS资源集中的目标SRS资源。
- 根据权利要求3所述的方法,其特征在于,在所述目标SRS资源集包括第一SRS资源集和第二SRS资源集的情况下,所述第一资源指示信息用于确定所述第一SRS资源集中的目标SRS资源,所述第二资源指示信息用于确定所述第二SRS资源集中的目标SRS资源。
- 根据权利要求3或4所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据如下中的至少一项确定:所述网络设备配置的传输模式;N max,表示所述第一SRS资源集合包括的SRS资源数N 1和所述第二SRS资源集合中包括的SRS资源数N 2中的较大值。
- 根据权利要求1或2所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,所述第一资源指示信息对应第一SRS资源集,所述第二资源指示信息对应第二SRS资源集,其中,所述第一资源指示信息用于确定所述第一SRS资源集上的目标SRS资源,所述第二资源指示信息用于确定所述第二SRS资源集上的目标SRS资源。
- 根据权利要求3-8中任一项所述的方法,其特征在于,所述第一SRS资源集和所述第二SRS资源集为用于码本传输的SRS资源集。
- 根据权利要求1或2所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述上行传输的层信息,所述第二资源指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求10所述的方法,其特征在于,所述方法还包括:若所述上行传输对应的目标SRS资源集为所述第一SRS资源集或所述第二SRS资源集,所述终端设备根据所述第一资源指示信息确定所述上行传输的层信息,并根据所述第二资源指示信息确定所述上行传输在所述目标SRS资源集中对应的所述目标SRS资源。
- 根据权利要求10或11所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求10-13中任一项所述的方法,其特征在于,所述第二资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;N Cmax为N C1和N C2中的较大值,其中,N C1表示在所述上行传输的最大层数下所述第一SRS资源集合中在相同SRS资源数的情况下对应的最多的SRS资源组合数,N C2表示在所述上行传输的最大层数下所述第二SRS资源集合中在相同SRS资源数的情况下对应的最多的SRS资源组合数N C2中的较大值;所述第二SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求1或2所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述上行传输的层信息以及所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求16所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求16-18中任一项所述的方法,其特征在于,所述第二资源指示信息用于在所述目标SRS资源集包括第一SRS资源集和第二SRS资源集的情况下,确定所述上行传输的层信息以及所述上行传输在所述第二SRS资源集中对应的目标SRS资源。
- 根据权利要求1或2所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,所述第一资源指示信息对应所述第一SRS资源集,所述第二资源指示信息对应第二SRS资源集,所述第一资源指示信息用于确定上行传输的层信息以及所述上行传输在所述第一SRS资源集中对应的目标SRS资源,所述第二资源指示信息用于确定所述上行传输的层信息以及所述上行传输在所述第二SRS资源集中对应的目标SRS资源。
- 根据权利要求21所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求21-23中任一项所述的方法,其特征在于,所述第二资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第二SRS资源集合包括的SRS资源数N 2;所述第二SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求10-25中任一项所述的方法,其特征在于,所述第一SRS资源集和所述第二SRS资源集为用于非码本传输的SRS资源集。
- 根据权利要求3-26中任一项所述的方法,其特征在于,所述第一资源指示信息承载于第一SRS资源指示域或第一传输预编码矩阵指示TPMI域,所述第二资源指示信息承载于第二SRS资源指示域或第二TPMI指示域。
- 根据权利要求27所述的方法,其特征在于,所述第一SRS资源指示域为所述DCI中的第一个SRS资源指示域,所述第二SRS资源指示域为所述DCI中的第二个SRS资源指示域。
- 根据权利要求1-28中任一项所述的方法,其特征在于,所述第一指示信息和所述第二指示信息承载于所述DCI中的不同域。
- 根据权利要求1-29中任一项所述的方法,其特征在于,所述第一指示信息至少为2比特。
- 一种上行传输方法,其特征在于,包括:网络设备向终端设备发送下行控制信息DCI,所述DCI用于调度所述终端设备发送上行传输,所述DCI包括第一指示信息和第二指示信息;其中,所述第一指示信息用于指示所述上行传输对应的目标探测参考信号SRS资源集,所述目标SRS资源集包括第一SRS资源集和第二SRS资源集中的至少一个;所述第二指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求31所述的方法,其特征在于,所述目标SRS资源集的数量用于指示所述上行传输的目标TRP为STRP或MTRP。
- 根据权利要求31或32所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,其中,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述目标SRS资源集中的目标SRS资源。
- 根据权利要求33所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据如下中的至少一项确定:所述网络设备配置的传输模式;N max,表示所述第一SRS资源集合包括的SRS资源数N 1和所述第二SRS资源集合中包括的SRS资源数N 2中的较大值。
- 根据权利要求31或32所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,所述第一资源指示信息对应第一SRS资源集,所述第二资源指示信息对应第二SRS资源集,其中,所述第一资源指示信息用于确定所述第一SRS资源集上的目标SRS资源,所述第二资源指示信息用于确定所述第二SRS资源集上的目标SRS资源。
- 根据权利要求33-37中任一项所述的方法,其特征在于,所述第一SRS资源集和所述第二SRS资源集为用于码本传输的SRS资源集。
- 根据权利要求31或32所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述上行传输的层信息,所述第二资源指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求9所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求9-11中任一项所述的方法,其特征在于,所述第二资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;N Cmax为N C1和N C2中的较大值,其中,N C1表示在所述上行传输对应的最大层数下所述第一SRS资源集合中在相同SRS资源数的情况下对应的最多的SRS资源组合数,N C2表示在所述上行传输对应的最大层数下所述第二SRS资源集合中在相同SRS资源数的情况下对应的最多的SRS资源组合数N C2中的较大值;所述第二SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求31或32所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,在所述目标SRS资源集包括一个SRS资源集的情况下,所述第一资源指示信息用于确定所述上行传输的层信息以及所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 根据权利要求44所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下 中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求44-46中任一项所述的方法,其特征在于,所述第二资源指示信息用于在所述目标SRS资源集包括第一SRS资源集和第二SRS资源集的情况下,确定所述上行传输的层信息以及所述上行传输在所述第二SRS资源集中对应的目标SRS资源。
- 根据权利要求31或32所述的方法,其特征在于,所述第二指示信息包括第一资源指示信息和第二资源指示信息,所述第一资源指示信息对应所述第一SRS资源集,所述第二资源指示信息对应第二SRS资源集,所述第一资源指示信息用于确定上行传输的层信息以及所述上行传输在所述第一SRS资源集中对应的目标SRS资源,所述第二资源指示信息用于确定所述上行传输的层信息以及所述上行传输在所述第二SRS资源集中对应的目标SRS资源。
- 根据权利要求49所述的方法,其特征在于,所述第一资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第一SRS资源集包括的SRS资源数N 1;所述第二SRS资源集包括的SRS资源数N 2;所述第一SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求49-51中任一项所述的方法,其特征在于,所述第二资源指示信息所占的比特数根据以下中的至少一项确定:所述网络设备配置的传输模式;所述终端设备支持的最大层数L max;所述第二SRS资源集合包括的SRS资源数N 2;所述第二SRS资源集下所述上行传输的每个层数对应的SRS资源组合的总个数。
- 根据权利要求39-53中任一项所述的方法,其特征在于,所述第一SRS资源集和所述第二SRS资源集为用于非码本传输的SRS资源集。
- 根据权利要求33-54中任一项所述的方法,其特征在于,所述第一资源指示信息承载于第一SRS资源指示域或第一传输预编码矩阵指示TPMI指示域,所述第二资源指示信息承载于第二SRS资源指示域或第二TPMI指示域。
- 根据权利要求55所述的方法,其特征在于,所述第一资源指示信息为所述DCI中的第一个SRS资源指示域,所述第二SRS资源指示域为所述DCI中的第二个SRS资源指示域。
- 根据权利要求31-56中任一项所述的方法,其特征在于,所述第一指示信息和所述第二指示信息承载于所述DCI中的不同域。
- 根据权利要求31-57中任一项所述的方法,其特征在于,所述第一指示信息至少为2比特。
- 一种上行传输方法,其特征在于,包括:通信单元,用于接收网络设备发送的下行控制信息DCI,所述DCI用于调度所述终端设备发送上行传输,所述DCI包括第一指示信息和第二指示信息;其中,所述第一指示信息用于指示所述上行传输对应的目标探测参考信号SRS资源集,所述目标SRS资源集包括第一SRS资源集和第二SRS资源集中的至少一个;所述第二指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 一种上行传输方法,其特征在于,包括:通信单元,用于向终端设备发送下行控制信息DCI,所述DCI用于调度所述终端设备发送上行传输,所述DCI包括第一指示信息和第二指示信息;其中,所述第一指示信息用于指示所述上行传输对应的目标探测参考信号SRS资源集,所述目标SRS资源集包括第一SRS资源集和第二SRS资源集中的至少一个;所述第二指示信息用于确定所述上行传输在所述目标SRS资源集中对应的目标SRS资源。
- 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至30中任一项所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求31至58中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至13中任一项所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
- 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求31至58中任一项所述的方法。
- 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至13中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至13中任一项所述的方法。
- 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至13中任一项所述的方法。
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