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WO2022056870A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

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

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Publication number
WO2022056870A1
WO2022056870A1 PCT/CN2020/116306 CN2020116306W WO2022056870A1 WO 2022056870 A1 WO2022056870 A1 WO 2022056870A1 CN 2020116306 W CN2020116306 W CN 2020116306W WO 2022056870 A1 WO2022056870 A1 WO 2022056870A1
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WIPO (PCT)
Prior art keywords
srs
network device
terminal device
indication information
srs resource
Prior art date
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PCT/CN2020/116306
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English (en)
Chinese (zh)
Inventor
方昀
史志华
陈文洪
田杰娇
黄莹沛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2020/116306 priority Critical patent/WO2022056870A1/fr
Priority to CN202080103326.0A priority patent/CN115956383B/zh
Publication of WO2022056870A1 publication Critical patent/WO2022056870A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, terminal device, and network device.
  • the enhanced transmission of the Physical Uplink Shared Channel is: the network device can only indicate one sounding reference through Downlink control information (DCI) signaling Signal (Sounding Reference Signal, SRS) resource, so PUSCH is repeatedly transmitted according to the same SRS resource.
  • DCI Downlink control information
  • SRS Sounding Reference Signal
  • R17 due to the introduction of PUSCH enhancement based on multi (Transmission Receive Point, TRP), when transmitting PUSCH at this time, it is necessary to perform repeated transmission based on different SRS resources, and in the prior art, The case where the network device only indicates one SRS resource through DCI cannot be flexibly applied to the enhanced transmission scheme of PUSCH based on multiple TRPs or the PUSCH transmission scheme based on single TRP.
  • the embodiments of the present application provide a wireless communication method, terminal device, and network device, which can be flexibly applied to a multi-TRP-based enhanced PUSCH transmission scheme or a single-TRP-based PUSCH transmission scheme.
  • a wireless communication method including: a terminal device sending at least one SRS to a network device.
  • the terminal device receives the first indication information, where the first indication information is used to instruct the network device to select at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS, and the at least one SRS resource is used by the terminal device to Upstream channel transmission of single TRP or multiple TRPs.
  • a wireless communication method including: a network device receiving at least one SRS.
  • the network device measures the respective channels of the at least one SRS to obtain a channel measurement result of the at least one SRS.
  • the network device selects at least one SRS resource from the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS.
  • the network device sends first indication information to the terminal device, where the first indication information is used to instruct the network device to select at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS, and the at least one SRS resource is used for Terminal equipment to single TRP or multi-TRP uplink channel transmission.
  • a terminal device including: a communication unit configured to: send at least one SRS to a network device. Receive first indication information, where the first indication information is used to instruct the network device to select at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS, and the at least one SRS resource is used for the terminal device to a single TRP Or multi-TRP uplink channel transmission.
  • a network device including: a communication unit and a processing unit.
  • the communication unit is used to receive at least one SRS.
  • the processing unit is configured to measure the respective channels of the at least one SRS, obtain the channel measurement result of the at least one SRS, and select at least one SRS resource from the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS.
  • the communication unit is further configured to send first indication information to the terminal device, where the first indication information is used to instruct the network device to select at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS, at least one SRS resource
  • the resources are used for uplink channel transmission from the terminal equipment to a single TRP or multiple TRPs.
  • a terminal device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.
  • an apparatus for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the apparatus includes: a processor for calling and running a computer program from a memory, so that a device installed with the apparatus executes any one of the above-mentioned first to second aspects or each of its implementations method.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program product comprising computer program instructions, the computer program instructions cause a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.
  • the network device selects one SRS resource
  • the one SRS resource is used for uplink channel transmission from the terminal device to the single transceiver point TRP
  • the network device selects multiple SRS resources
  • multiple SRS resources are used for uplink channel transmission from terminal equipment to multiple TRPs. Therefore, it can be flexibly applied to the enhanced transmission scheme of PUSCH based on multiple TRPs or the PUSCH transmission scheme based on single TRP.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is the flow chart of the uplink transmission scheme based on codebook
  • FIG. 3 is an interaction flowchart of a wireless communication method provided by an embodiment of the present application.
  • FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application
  • FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • New Radio, NR evolution system of NR system
  • LTE LTE-based access to unlicensed spectrum, LTE-U
  • NR NR-based access to unlicensed spectrum, NR
  • UMA Universal Mobile Telecommunication System
  • WiFi Wireless Fidelity
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • This embodiment of the present application does not limit the applied spectrum.
  • the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.
  • STAION, ST in the WLAN
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a WCDMA
  • the base station (NodeB, NB) can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device or base station in an NR network ( gNB) or network equipment in the future evolved PLMN network, etc.
  • gNB NR network
  • a network device provides services for a cell
  • a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network device (for example, a frequency domain resource).
  • the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell), where the small cell can include: Metro cell, Micro cell, Pico cell cell), Femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.
  • MIMO Multiple-Input Multiple-Output
  • the following first introduces the SRS, the codebook-based uplink transmission scheme, and the indication mode of the SRS resources in the codebook-based uplink transmission scheme:
  • the SRS can be used for uplink channel information acquisition, downlink channel information acquisition, and uplink beam management.
  • the New Radio (New Radio, NR) system manages and configures the SRS by means of the 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 used for uplink beam management, codebook-based uplink channel information acquisition, non-codebook
  • a usage indication which can be configured as "beamManagement", “codebook”, “nonCodebook” or “antennaswitching”, which are used for uplink beam management, codebook-based uplink channel information acquisition, non-codebook
  • FIG. 2 is a flowchart of a codebook-based uplink transmission scheme. As shown in Figure 2, the codebook-based uplink transmission scheme in the NR system R16 includes the following steps:
  • Step S210 The terminal device sends at least one SRS to the network device according to the SRS resource configured to it by the network device.
  • Step S220 the network device measures the channel of at least one SRS, obtains a channel measurement result, and selects SRS resources, the number of transmission layers, and the transmission precoding matrix indicator (Transmitted Precoding Matrix Indicator, TPMI) in the SRS set according to the channel measurement result, Demodulation reference signal (Demodulation Reference Sgnal, DMRS) port indication information, PUSCH resource allocation and corresponding modulation and coding strategy (Modulation and Coding Scheme, MCS).
  • TPMI Transmission Precoding Matrix Indicator
  • Step S230 The network device sends the DCI to the terminal device.
  • the DCI includes: SRS Resource Indicator (SRS Resource Indicator, SRI), number of transmission layers, TPMI, DMRS port indication information, PUSCH resource allocation and corresponding MCS, where SRI is used to indicate the SRS resource selected by the network device.
  • SRS Resource Indicator SRI
  • number of transmission layers TPMI
  • DMRS port indication information PUSCH resource allocation and corresponding MCS
  • SRI is used to indicate the SRS resource selected by the network device.
  • Step S240 The terminal device modulates and encodes the data of the PUSCH according to the MCS, and uses the SRI, TPMI and the number of transmission layers to determine the precoding matrix and the number of transmission layers used when the data is sent, and uses the TPMI to select the precoding matrix of the PUSCH from the codebook. Encoder.
  • Step S250 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.
  • Step S260 The network device estimates the uplink channel according to the DMRS, and performs demodulation and decoding of the PUSHC data.
  • the terminal device performs PUSCH transmission according to one SRS resource.
  • the transmission scheme of PUSCH is configured through high-level signaling. Before the network device configures the uplink transmission scheme for the terminal device through high-level signaling, the network device can only schedule PUSCH through DCI format 0_0 (that is, DCI with format 0_0). There is no SRI in 0_0, and when PUSCH is scheduled by DCI format 0_0, PUSCH uses single-port transmission, that is, the physical uplink control channel ( Physical Uplink Control Channel, PUCCH) same uplink transmit beam.
  • DCI format 0_0 that is, DCI with format 0_0
  • PUCCH Physical Uplink Control Channel
  • the SRI is carried in the DCI, and the size of the SRI field is determined according to the usage indication configured by the network device for the SRS resource set and the number of SRS resources in the SRS resource set. .
  • the size of the SRI field is The corresponding bits are set according to the specifically selected SRS resource. If the number of SRS resources in the SRS resource set is 4, the size of the SRI field is 2 bits, and different bits in the SRI field correspond to different SRS resources, as shown in Table 1:
  • the size of the SRI field is 1 bit, and different bits in the SRI field correspond to different SRS resources, as shown in Table 2:
  • the size of the SRI field is 2 bits, and different bits in the SRI field correspond to different SRS resources, as shown in Table 3: Table 3
  • the terminal device when the terminal device sends the PUSCH, it can only transmit according to one SRS resource, and correspondingly, the SRI in the DCI also only indicates one SRS resource.
  • enhanced transmission of PUSCH needs to be performed based on multiple TRPs, which means that the same PUSCH needs to be sent to different TRPs through different beams.
  • the network device only indicates one SRS resource through DCI. It is flexibly applicable to the enhanced transmission scheme of PUSCH based on multiple TRPs or the PUSCH transmission scheme based on single TRP.
  • the SRI in this application can indicate multiple SRS resources for different services to be applicable to the PUSCH enhanced transmission scheme under multiple TRPs, or indicate one SRS resource to be applicable to the PUSCH enhanced transmission under a single TRP plan.
  • FIG. 3 is an interaction flowchart of a wireless communication method provided by an embodiment of the present application. As shown in FIG. 3 , the method includes the following steps:
  • Step S310 The terminal device sends at least one SRS to the network device.
  • Step S320 The network device measures the respective channels of the at least one SRS, obtains a channel measurement result for the at least one SRS, and selects at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result for the at least one SRS.
  • Step S330 The network device sends first indication information to the terminal device, where the first indication information is used to indicate at least one SRS resource selected by the network device.
  • the transmission scheme configured by the network device for the uplink channel is a codebook-based uplink transmission scheme.
  • the network device may configure an SRS resource set for the terminal device, and the resource set includes a "codebook" usage indication, indicating that the SRS resource set is used for codebook-based uplink channel information acquisition.
  • the network device may also configure multiple SRS resource sets for the terminal device, wherein one SRS resource set is selected for acquiring uplink channel information based on the codebook.
  • the beams used to transmit these SRSs are different.
  • the network device selects the SRS resource corresponding to the SRS.
  • the terminal device may select at least one SRS resource in the SRS resource set according to the correspondence and the channel measurement result of the at least one SRS obtained by performing channel measurement.
  • the above-mentioned preset condition may be configured by a network device, and the present application does not limit the specific content of the preset condition.
  • the correspondence between the channel measurement result of the SRS and the SRS resource may also be configured by the network device, and the present application does not limit the specific content of the correspondence.
  • the terminal device may consider service types when selecting SRS resources. For example, some service types require PUSCH transmission under a single TRP, while some service types require PUSCH transmission under multiple TRPs.
  • the above-mentioned first indication information may be carried in a DCI or a media access control control element (Media Access Control Control Element, MAC CE), which is not limited in this application.
  • MAC CE Media Access Control Control Element
  • the above-mentioned first indication information is SRI.
  • the network device selects one SRS resource
  • the one SRS resource is used for uplink channel transmission from the terminal device to the single transceiver point TRP
  • the network device selects multiple SRS resources
  • the multiple SRS resources are used for Upstream channel transmission from terminal equipment to multiple TRPs.
  • the terminal device may perform uplink channel transmission according to at least one SRS resource.
  • the terminal device in addition to acquiring the first indication information, the terminal device also acquires the number of transmission layers, TPMI, DMRS port indication information, PUSCH resource allocation and corresponding MCS for any selected SRS resource.
  • the PUSCH data is modulated and encoded, and the first indication information, TPMI and the number of transmission layers are used to determine the precoding matrix and the number of transmission layers used when the data is sent, and the TPMI is used to select the PUSCH precoder from the codebook.
  • the terminal device performs precoding transmission on the PUSCH according to the precoding matrix, the number of transmission layers, and through the selected precoder.
  • the uplink channel may be PUSCH, which is not limited in this application.
  • the uplink channel transmission in this application refers to the enhanced transmission of the uplink channel.
  • the uplink channel transmission here refers to the enhanced transmission of the PUSCH.
  • the first indication information is used to indicate at least one SRS resource selected by the network device, and the at least one SRS resource is used for the uplink channel transmission from the terminal device to a single TRP or multiple TRPs.
  • This indication method illustrate:
  • the network device can configure the PUSCH uplink transmission scheme as a codebook-based uplink transmission scheme; the network device configures an SRS resource set, the function of the resource set is configured as a codebook, and two SRS resources are configured in the resource set, respectively. are SRS resource 0 and SRS resource 1; the terminal device can send at least one SRS to the network device; the network device measures the respective channels of the at least one SRS according to the at least one SRS, and obtains the channel measurement result of the at least one SRS. The network device selects SRS resource 0 in the SRS resource set of the terminal device according to the channel measurement result of at least one SRS.
  • the network device sends first indication information 00 to the terminal device, where the first indication information 00 is used to indicate the SRS resource 0 selected by the network device. Or, the network device selects SRS resources 0 and 1 in the SRS resource set of the terminal device according to the channel measurement result of at least one SRS. The network device sends first indication information 10 to the terminal device, where the first indication information is used to indicate SRS resource 0 and SRS resource 1 selected by the network device.
  • the terminal device may select SRS resource 0 according to the first indication information 00 to perform uplink PUSCH transmission of a single TRP.
  • the terminal device may select SRS resource 0 and SRS resource 1 according to the first indication information 10 to perform uplink PUSCH transmission of multiple TRPs.
  • the network device can configure the PUSCH uplink transmission scheme as a codebook-based uplink transmission scheme; the network device configures an SRS resource set, the function of the resource set is configured as a codebook, and three SRS resources are configured in the resource set, respectively. are SRS resource 0, SRS resource 1, and SRS resource 2; where SRS resource 0 and 1 are two SRS resources with the same beam configuration, and SRS resource 2 and SRS resource 0 and 1 are two SRS resources with different beam configurations, respectively .
  • the terminal device may send at least one SRS to the network device; the network device measures the respective channels of the at least one SRS according to the at least one SRS, and obtains a channel measurement result of the at least one SRS.
  • the network device selects SRS resource 0 and resource 2 in the SRS resource set of the terminal device according to the channel measurement result of at least one SRS.
  • the network device sends first indication information 011 to the terminal device, where the first indication information 011 is used to indicate SRS resource 0 and SRS resource 2 selected by the network device.
  • the terminal device can select SRS resource 0 and SRS resource 2 according to the first indication information 011 to perform uplink PUSCH transmission of multiple TRPs.
  • the indication field where the first indication information is located is determined according to the number of resources in the SRS resource set.
  • the number of resources in the SRS resource set is 2
  • the length of the SRI field is 2 bits, that is, the SRI field occupies 2 bits.
  • the number of resources in the SRS resource set is 3
  • the length of the SRI field is 3 bits, that is, the SRI field occupies 3 bits.
  • the network device may send second indication information to the terminal device to indicate SRS resources with the same beam configuration.
  • This enables the terminal device to know which SRS resources correspond to the same beam configuration. For example, in Example 2, SRS resources 0 and 1 are two SRS resources with the same beam configuration.
  • the second indication information is semi-statically configured by the network device through high layer signaling or dynamically configured through physical layer signaling, but is not limited thereto.
  • the higher layer signaling may be RRC signaling.
  • the physical layer signaling may be DCI signaling or MAC CE signaling.
  • the second indication information is spatial relation information (spatial relationinfo) configured by the network device for SRS resources having the same beam configuration.
  • the first indication information is used to instruct the network device to select multiple SRS resources in the SRS resource set of the terminal device according to the channel measurement result of at least one SRS
  • the multiple SRS The resources are multiple SRS resources with different beam configurations, based on which, the terminal device can send the PUSCH to different TRPs through different beams.
  • the network device sends the first indication information to the terminal device, where the first indication information is used to indicate at least one SRS resource selected by the network device.
  • the network device selects one SRS resource
  • the one SRS resource is used for uplink channel transmission from the terminal device to the single transceiver point TRP.
  • the network device selects multiple SRS resources
  • the multiple SRS resources are used for the terminal device to multiple TRPs transmission on the upstream channel. Therefore, it can be flexibly applied to the enhanced transmission scheme of PUSCH based on multiple TRPs or the PUSCH transmission scheme based on single TRP.
  • FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes: a communication unit 410 configured to send at least one SRS to the network device and receive first indication information, where the first indication information is used to instruct the network device to measure the at least one SRS according to the channel measurement result
  • a communication unit 410 configured to send at least one SRS to the network device and receive first indication information, where the first indication information is used to instruct the network device to measure the at least one SRS according to the channel measurement result
  • At least one SRS resource selected in the SRS resource set of the terminal equipment, at least one SRS resource is used for uplink channel transmission from the terminal equipment to a single TRP or multiple TRPs.
  • the length of the indication field where the first indication information is located is determined according to the number of resources in the SRS resource set.
  • the communication unit 410 is further configured to receive second indication information, where the second indication information is used to indicate SRS resources with the same beam configuration.
  • the second indication information is semi-statically configured by the network device through high layer signaling or dynamically configured through physical layer signaling.
  • the second indication information is spatial relationship information configured by the network device for SRS resources having the same beam configuration.
  • the multiple SRS resources are multiple SRS resources with different beam configurations. SRS resources.
  • the channel measurement result of at least one SRS has a corresponding relationship with at least one SRS resource.
  • the corresponding relationship is configured by the network device.
  • the first indication information is carried in DCI or MAC CE.
  • the communication unit 410 is further configured to perform uplink channel transmission according to at least one SRS resource.
  • the uplink channel is PUSCH.
  • the SRS resource set is used for codebook-based acquisition of uplink channel information.
  • 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 terminal device 400 may correspond to the terminal device in the method embodiment corresponding to FIG. 3 of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 400 are for realizing the above-mentioned figure respectively. 3
  • the corresponding process of the terminal device in the corresponding method embodiment is not repeated here for brevity.
  • FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application.
  • the network device 500 includes a communication unit 510 and a processing unit 520 .
  • the communication unit 510 is configured to receive at least one SRS.
  • the processing unit 520 is configured to measure the respective channels of the at least one SRS, obtain a channel measurement result of the at least one SRS, and select at least one SRS resource from the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS.
  • the communication unit 510 is further configured to send first indication information to the terminal device, where the first indication information is used to instruct the network device to select at least one SRS resource in the SRS resource set of the terminal device according to the channel measurement result of the at least one SRS, at least one SRS resource.
  • SRS resources are used for uplink channel transmission from terminal equipment to single TRP or multiple TRPs.
  • the length of the indication field where the first indication information is located is determined according to the number of resources in the SRS resource set.
  • the communication unit 510 is further configured to send second indication information to the terminal device, where the second indication information is used to indicate SRS resources with the same beam configuration.
  • the second indication information is semi-statically configured by the network device through high layer signaling or dynamically configured through physical layer signaling.
  • the second indication information is spatial relationship information configured by the network device for SRS resources having the same beam configuration.
  • the multiple SRS resources are multiple SRS resources with different beam configurations. SRS resources.
  • the channel measurement result of at least one SRS has a corresponding relationship with at least one SRS resource.
  • the corresponding relationship is configured by the network device.
  • the first indication information is carried in DCI or MAC CE.
  • the communication unit 510 is further configured to receive uplink channel transmission through at least one SRS resource.
  • the uplink channel is PUSCH.
  • the SRS resource set is used for codebook-based acquisition of uplink channel information.
  • 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 500 may correspond to the method embodiments on the network device side, and the foregoing and other operations and/or functions of each unit in the network device 500 are respectively implemented to implement the foregoing method on the network device side.
  • the corresponding flow of the network device in the example is not repeated here for brevity.
  • FIG. 6 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. 6 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 a terminal device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • FIG. 7 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 700 shown in FIG. 7 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the apparatus 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 apparatus 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 apparatus 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 apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 8 is a schematic block diagram of a communication system 800 provided by an embodiment of the present application. As shown in FIG. 8 , the communication system 800 includes a terminal device 810 and a network device 820 .
  • the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 820 can be used to implement the corresponding functions implemented by the network device or the base station in the above method. Repeat.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device or the base station in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device or the base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device or the base station in the various methods of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device or the base station in the embodiments of the present application, and when the computer program runs on the computer, the computer can execute the corresponding methods implemented by the network device or the base station in each method of the embodiments of the present application.
  • the process for the sake of brevity, will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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

Abstract

Des modes de réalisation de la présente demande concernent un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Selon le procédé : un dispositif terminal envoie au moins un SRS à un dispositif de réseau. Le dispositif terminal reçoit des premières informations d'indication, les premières informations d'indication étant utilisées pour indiquer au moins une ressource de SRS sélectionnée à partir d'un ensemble de ressources de SRS du dispositif terminal par le dispositif de réseau selon un résultat de mesure de canal pour l'au moins un SRS, et l'au moins une ressource de SRS étant utilisée pour une transmission de canal de liaison montante depuis le dispositif terminal vers un seul TRP ou de multiples TRP. Par conséquent, le procédé peut être appliqué de manière flexible à un schéma de transmission amélioré par le PUSCH basé sur des multiples TRP ou un schéma de transmission PUSCH basé sur un seul TRP.
PCT/CN2020/116306 2020-09-18 2020-09-18 Procédé de communication sans fil, dispositif terminal et dispositif de réseau Ceased WO2022056870A1 (fr)

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CN202080103326.0A CN115956383B (zh) 2020-09-18 2020-09-18 无线通信方法、终端设备和网络设备

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