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WO2023227022A1 - Procédé et appareil de transmission d'informations d'état de canal (csi), et terminal - Google Patents

Procédé et appareil de transmission d'informations d'état de canal (csi), et terminal Download PDF

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Publication number
WO2023227022A1
WO2023227022A1 PCT/CN2023/096008 CN2023096008W WO2023227022A1 WO 2023227022 A1 WO2023227022 A1 WO 2023227022A1 CN 2023096008 W CN2023096008 W CN 2023096008W WO 2023227022 A1 WO2023227022 A1 WO 2023227022A1
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WO
WIPO (PCT)
Prior art keywords
csi
information
transmission
configuration
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/096008
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English (en)
Chinese (zh)
Inventor
王欢
纪子超
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.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2023227022A1 publication Critical patent/WO2023227022A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a method, device and terminal for transmitting channel state information CSI.
  • the SideLink (SL) Channel State Information Reference Signal can be used to measure the SL channel status between the sending user equipment (User Equipment, UE) and the receiving UE.
  • the channel state measured by the receiving UE can be fed back to the sending UE through SL channel state information (Channel State Information, CSI).
  • CQI Channel Quality Indicator
  • RI rank indicator
  • Embodiments of the present application provide a method, device and terminal for transmitting channel state information CSI, which can solve the problem of beam establishment in SL transmission scenarios.
  • a method for transmitting channel state information CSI including:
  • the first terminal receives the first channel state information reference signal CSI-RS;
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal; wherein the CSI carries at least one of the following parameters:
  • a method for transmitting channel state information CSI including:
  • the second terminal sends the first channel state information reference signal CSI-RS;
  • the second terminal receives the CSI corresponding to the first CSI-RS fed back by the first terminal; wherein the CSI carries at least one of the following parameters:
  • a device for transmitting channel state information CSI including:
  • a first receiving module configured to receive the first channel state information reference signal CSI-RS
  • the first sending module is configured to feed back the CSI corresponding to the first CSI-RS to the second terminal; wherein the CSI carries at least one of the following parameters:
  • a device for transmitting channel state information CSI including:
  • a second sending module configured to send the first channel state information reference signal CSI-RS
  • the second receiving module is configured to receive the CSI corresponding to the first CSI-RS fed back by the first terminal; wherein the CSI carries at least one of the following parameters:
  • a terminal in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect, or the steps of implementing the method described in the second aspect.
  • a terminal including a processor and a communication interface, wherein the communication interface is configured to receive a first channel state information reference signal CSI-RS; and feed back CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries at least one of the following parameters: side link SL channel status information; SL beam related information; or, the communication interface is used to send the first channel status information reference signal CSI-RS; receive the first The CSI corresponding to the first CSI-RS fed back by the terminal; where, The CSI carries at least one of the following parameters: side link SL channel status information; SL beam related information.
  • a seventh aspect provides a communication system, including: a first terminal and a second terminal.
  • the first terminal can be used to perform the steps of the method described in the first aspect
  • the second terminal can be used to perform the steps of the method described in the first aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the second aspect.
  • a chip in a ninth aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. , or implement the method described in the second aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method as described in the first aspect
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries SL channel state information and/or SL beam related information to assist the second terminal in performing inter-terminal beam training. , thereby establishing a transmission beam between the first terminal and the second terminal.
  • Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied
  • Figure 2 shows one of the step flow charts of the CSI transmission method provided by the embodiment of the present application
  • Figure 3 shows the second step flow chart of the CSI transmission method provided by the embodiment of the present application
  • Figure 4 shows the mapping form 1 of a set of CSI-RS resources in the CSI transmission method provided by the embodiment of the present application
  • Figure 5 shows the mapping form 2 of a set of CSI-RS resources in the CSI transmission method provided by the embodiment of the present application
  • Figure 6 shows one of the structural schematic diagrams of a CSI transmission device provided by an embodiment of the present application
  • Figure 7 shows the second structural schematic diagram of a CSI transmission device provided by an embodiment of the present application.
  • Figure 8 shows one of the schematic structural diagrams of the terminal provided by the embodiment of the present application.
  • Figure 9 shows the second structural schematic diagram of the terminal provided by the embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12. Information can be exchanged between terminals 11 through a side link (SL).
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • MID mobile Internet device
  • augmented reality augmented reality, AR
  • VR virtual reality
  • robots wearable devices
  • Vehicle user equipment VUE
  • pedestrian terminal pedestrian terminal
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices.
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the network side equipment 12 may include access network equipment or core network equipment, where the access network equipment may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or wireless access network unit.
  • Access network equipment can include base stations, Wireless Local Area Networks (WLAN) access points or Wireless Fidelity (WiFi) nodes, etc.
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • the base station can be called Node B, Evolved Node B (eNB), Access Entry point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B node, home evolution Type B node, Transmitting Receiving Point (TRP) or some other appropriate terminology in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this application, In the embodiment, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
  • this embodiment of the present application provides a method for transmitting channel state information CSI, which includes:
  • Step 201 The first terminal receives the first channel state information reference signal CSI-RS;
  • Step 202 The first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal; wherein the CSI carries at least one of the following parameters:
  • the first terminal is a receiving terminal (RX UE) in SL communication
  • the second terminal is a transmitting terminal (TX UE) in SL communication.
  • the SL channel status information includes at least one of the following:
  • the CSI can also carry at least one of measured carrier information, CSI feedback associated carrier information, and resource pool information.
  • the SL beam related information includes at least one of the following:
  • Reference signal identification (RS ID);
  • Layer 1 (layer1, L1) reference signal received power (Reference Signal Received Power, RSRP).
  • RSRP Reference Signal Received Power
  • the first terminal if beam training is performed on the first terminal side, the first terminal does not need to carry SL beam related information in the CSI.
  • the first terminal when the first CSI-RS is only used for beam measurement, the first terminal does not need to feed back the CSI corresponding to the first CSI-RS; or, when the first CSI-RS is used for beam measurement, When the RS is used for both beam measurement and channel measurement, the first terminal feeds back the CSI corresponding to the first CSI-RS, but the CSI does not carry SL beam related information.
  • the first indication information indicates that the first CSI-RS transmission does not need to correspond to CSI reporting (ie, RX UE side beam training). That is, the first terminal receives the first indication information indicating that the first CSI-RS does not need to correspond to CSI reporting; then the first terminal determines not to feed back the first CSI-RS correspondence according to the indication of the first indication information.
  • CSI CSI
  • the first indication information is carried through an indication field of the CSI request information, or the first indication information is sent separately by the second terminal, which is not specifically limited here.
  • differential coding may be used between the multiple CSIs to reduce signaling overhead.
  • the method further includes:
  • the first terminal determines the quantity carried by the CSI according to first information; wherein the first information includes any one of the following:
  • CSI request information can be sent through sidelink control information (Sidelink Control Information, SCI) or media access control layer control unit MAC CE;
  • SCI Sidelink Control Information
  • MAC CE media access control layer control unit
  • Predefined information used to indicate the parameters carried by the CSI is not limited.
  • the first terminal determines the parameters carried by the CSI according to the CSI request information, including:
  • the first terminal determines, according to the parameter indication information carried in the CSI request information, that the parameter carried in the CSI is: the parameter indicated by the parameter indication information;
  • the CSI request information directly indicates the parameters of CSI feedback.
  • a new SCI format or Medium Access Control Control Element MAC CE
  • M fields/codepoints are used for CSI request indication, and one field/codepoint refers to indicates that the CSI reporting parameter is CQI/RI, and/or, another domain/codepoint indicates that the reporting parameter is SL beam related information, and/or, another domain/codepoint indicates that CSI reporting is not required.
  • MAC CE Medium Access Control Control Element
  • the first terminal determines the parameters carried by the CSI according to the CSI request information, including:
  • the first terminal determines, according to the CSI configuration indication information carried in the CSI request information, that the parameters carried by the CSI are: parameters corresponding to the CSI configuration indicated by the CSI configuration indication information;
  • the CSI request information indirectly indicates the parameters reported by the CSI by indicating the identifier of the CSI configuration information.
  • the CSI configuration indication information is used to indicate the ID of the CSI configuration; the CSI configuration information has its corresponding ID information, and the CSI request information directly indicates the ID of the CSI configuration information.
  • the CSI configuration indication information is used to indicate the item index of the CSI configuration in the first preset list; that is, the first terminal locally stores the first preset list in advance, and the first preset list includes multiple CSI configuration information , the CSI request information directly indicates the item index in the list, thereby indicating the CSI configuration information.
  • CSI configuration information can be negotiated between terminals through PC5-Radio Resource Control (PC5-RRC), or per pool (based on resource pool)/per BWP (Bandwidth Part) can also be configured through RRC (Based on the bandwidth part)/per UE (based on the terminal) CSI configuration information, which is not specifically limited here.
  • PC5-RRC PC5-Radio Resource Control
  • per pool based on resource pool
  • per BWP Bandwidth Part
  • RRC bandwidth part
  • the first terminal determines the parameters carried by the CSI according to the CSI request information, including:
  • the first terminal determines, according to the signaling format of the CSI request information, that the parameters carried by the CSI are: parameters corresponding to the signaling format. That is, different CSI reporting parameters are triggered by CSI request information in different signaling formats, and the first terminal identifies the CSI reporting parameters by distinguishing the signaling format of the CSI request information.
  • the trigger for CQI/RI reporting uses MAC CE
  • the trigger for beam-related reporting uses [2nd stage] SCI.
  • MAC CE is used to trigger CQI/RI and beam-related reporting, but the MAC CEs of the two use different logical IDs.
  • the triggering of CQI/RI and beam-related reporting both uses SCI, but the SCIs of the two use different formats.
  • the first terminal determines the parameters carried by the CSI according to the reporting time of the CSI, including:
  • the first terminal determines a first time range to which the CSI reporting time belongs
  • the first terminal determines, according to the first time range, that the parameters carried by the CSI are: pre-agreed parameters corresponding to the first time range.
  • the parameters reported by CSI are the CSI parameters agreed within the preset time range.
  • the preset time range is agreed between UEs, for example, negotiated through PC5-RRC, MAC CE and other signaling.
  • the CSI request information may be a CSI request indication in 2nd stage SCI format 2-A/2-B/2-C.
  • the first terminal determines the parameters carried by the CSI according to the configuration information of the first CSI-RS, including:
  • the first terminal determines, according to the configuration information of the first CSI-RS, that the parameters carried by the CSI are: parameters associated with the configuration information of the first CSI-RS;
  • the configuration information of the first CSI-RS is indicated by the second terminal.
  • the CSI reporting parameters corresponding to the first CSI-RS at least include SL beam related information (or, including SL beam related information and CQI/RI); if the CSI-RS transmission is a CSI-RS resource (a CSI-RS resource) transmission, the CSI reporting parameters are only CQI/RI.
  • the first terminal when the first terminal determines the parameters carried by the CSI based on the predefined information used to indicate the parameters carried by the CSI, it is predefined through the predefined information.
  • the parameters carried by CSI are SL beam related information and CQI/RI. For example, after the first terminal receives the CSI request information, the first terminal always reports CSI carrying SL beam related information and CQI/RI.
  • the method further includes:
  • the first terminal determines the configuration information of the first CSI-RS according to second information; wherein the second information includes at least one of the following:
  • the transmission indication signaling of the first CSI-RS for example, the transmission indication signaling may be PC5-RRC, or MAC CE, or SCI; wherein the transmission indication signaling is used to indicate CSI-RS transmission resources;
  • Configuration information of channel state information CSI feedback corresponding to the first CSI-RS
  • the configuration information of the first CSI-RS is used to configure or indicate any of the following:
  • the transmission resource of the first CSI-RS is a set of CSI-RS resources (a set of CSI-RS resources);
  • the first CSI-RS is embedded in a Physical SideLink Shared Channel (PSSCH) for transmission.
  • PSSCH Physical SideLink Shared Channel
  • the CSI-RS used for beam measurement can be configured/indicated as a set of CSI-RS resource.
  • the CSI-RS used for beam measurement can be embedded in the PSSCH for transmission.
  • CSI-RS For example, for PSSCH transmission carrying CSI-RS, if the beam direction of CSI-RS transmission on the PSSCH is inconsistent with the beam direction of data transmission; for example, CSI-RS is transmitted in the form of beam scanning, and data is transmitted in the form of directional beams. , data transmission cannot be mapped to the time domain resources of CSI-RS transmission to ensure data transmission reliability.
  • the first terminal determines the configuration information of the first CSI-RS according to the transmission indication signaling of the first CSI-RS, including:
  • the first terminal determines that the configuration information of the first CSI-RS is the configuration corresponding to the CSI-RS configuration identifier according to the CSI-RS configuration identifier indicated by the transmission indication signaling of the first CSI-RS.
  • Information that is, the CSI-RS configuration information has corresponding ID information, and the transmission indication signaling can directly indicate the ID;
  • the first terminal determines, based on the item index in the second preset list indicated by the transmission indication signaling of the first CSI-RS, that the configuration information of the first CSI-RS is the item corresponding to the item index.
  • Configuration information that is, the first terminal locally stores a second preset list in advance.
  • the second preset list includes multiple CSI configuration information.
  • the transmission instruction signaling of CSI-RS directly indicates the item index in the list, thereby indicating the CSI configuration. information.
  • the CSI configuration information can be negotiated between terminals through PC5-RRC, or the CSI configuration information per pool (based on resource pool)/per BWP (based on bandwidth part)/per UE (based on terminal) can be configured through RRC. There are no specific limitations here.
  • the first terminal determines the configuration information of the first CSI-RS according to the transmission moment of the first CSI-RS, including:
  • the first terminal determines a second time range to which the transmission moment of the first CSI-RS belongs
  • the first terminal determines, according to the second time range, that the configuration information of the first CSI-RS is: pre-agreed CSI-RS configuration information corresponding to the second time range.
  • the preset time range is agreed that there is only one kind of CSI-RS configuration information.
  • the preset time range is agreed between UEs, for example, through negotiation and agreement through PC5-RRC, MAC CE and other indication signaling.
  • the first terminal determines the configuration information of the first CSI-RS based on the configuration information of the CSI feedback corresponding to the first CSI-RS, including:
  • the first terminal determines that the configuration information of the first CSI-RS is: CSI-RS configuration information associated with the CSI feedback configuration information.
  • the CSI feedback configuration information is associated with the CSI-RS configuration information.
  • the corresponding CSI-RS configuration information is indirectly indicated.
  • the configuration information of CSI feedback is indicated by the second terminal.
  • the first terminal feeds back the first CSI-RS corresponding to the second terminal.
  • CSI carries SL channel status information and/or SL beam related information to assist the second terminal in performing beam training between terminals, thereby establishing a transmission beam between the first terminal and the second terminal.
  • this embodiment of the present application also provides a method for transmitting channel state information CSI, which includes:
  • Step 301 The second terminal sends the first channel state information reference signal CSI-RS;
  • Step 302 The second terminal receives the CSI corresponding to the first CSI-RS fed back by the first terminal; wherein the CSI carries at least one of the following parameters:
  • the first terminal is a receiving terminal (RX UE) in SL communication
  • the second terminal is a transmitting terminal (TX UE) in SL communication.
  • the SL channel status information includes at least one of the following:
  • the CSI can also carry at least one of measured carrier information, CSI feedback associated carrier information, and resource pool information.
  • the SL beam related information includes at least one of the following:
  • Reference signal identification (RS ID);
  • L1-RSRP Layer 1 reference signal received power
  • the first terminal if beam training is performed on the first terminal side, the first terminal does not need to carry SL beam related information in the CSI.
  • the first terminal when the first CSI-RS is only used for beam measurement, the first terminal does not need to feed back the CSI corresponding to the first CSI-RS; or, when the first CSI-RS is used for beam measurement, When the RS is used for both beam measurement and channel measurement, the first terminal feeds back the CSI corresponding to the first CSI-RS, but the CSI does not carry SL beam related information.
  • the first indication information indicates that the first CSI-RS transmission does not need to correspond to CSI reporting (ie, RX UE side beam training). That is, the first terminal receives the first indication information indicating that the first CSI-RS does not need to correspond to CSI reporting; then the first terminal determines not to feed back the first CSI-RS correspondence according to the indication of the first indication information.
  • CSI CSI
  • the first indication information is carried through an indication field of the CSI request information, or the first indication information is sent separately by the second terminal, which is not specifically limited here.
  • differential coding may be used between the multiple CSIs to reduce signaling overhead.
  • the transmission resource of the first CSI-RS satisfies at least one of the following:
  • the transmission time of the first CSI-RS is x time units after the transmission time of the CSI-RS transmission indication signaling
  • the transmission resource of the first CSI-RS belongs to the PSSCH reserved by the side link control information SCI associated with the CSI-RS transmission indication signaling;
  • the value of x is a value that is pre-agreed or pre-configured or configured or dynamically indicated.
  • the above time unit can be milliseconds or symbols or time slots.
  • the first terminal can demodulate the CSI-RS transmission indication signaling to adjust the beam direction in which the first terminal receives the CSI-RS; accordingly, the value of x is greater than or equal to the value of the first terminal demodulating the CSI-RS.
  • the method further includes:
  • the second terminal determines whether the transmission time of the first CSI-RS needs to be x time units after the transmission time of the CSI-RS transmission indication signaling according to whether the first terminal needs to adjust the receiving beam.
  • the TX UE can decide whether it needs to meet the time limit requirement of x based on whether the RX UE needs to adjust the receiving beam according to the CSI-RS transmission indication signaling. For example, the RX UE does not need to adjust the receiving beam decision based on the CSI-RS transmission indication signaling, so the CSI-RS transmission time does not need to meet the time limit requirement of x; for another example, the RX UE needs to adjust the receiving beam based on the CSI-RS transmission indication signaling. If the beam is determined, the transmission time of CSI-RS needs to meet the time limit requirement of x.
  • the transmission resource of the first CSI-RS is a set of CSI-RS resources (that is, the CSI-RS used for beam measurement can be configured/indicated as a set of CSI-RS resource ), the mapping form of the set of CSI-RS resources includes at least one of the following:
  • Form 1 a set of CSI-RS resources is mapped to a PSSCH transmission or a time slot;
  • a set of CSI-RS resources is mapped to different PSSCH transmissions or different time slots.
  • a set of CSI-RS resource can be configured on the same PSSCH transmission.
  • the resources of CSI-RS#1, CSI-RS#2, CSI-RS#3, and CSI-RS#4 are mapped to the same PSSCH. It can also be understood indirectly that as long as a set of CSI-RS resource is transmitted on the same PSSCH, the transmission form of CSI-RS is beam repetition.
  • a set of CSI-RS resources is mapped to different PSSCH transmissions or different time slots in order to increase the maximum number of CSI-RS resources or facilitate CSI-RS beam switching.
  • the resources of CSI-RS#1, CSI-RS#2, CSI-RS#3, and CSI-RS#4 are mapped to different PSSCHs.
  • mapping method of CSI-RS resources on one PSSCH transmission/slot for example, follow the configuration method of SL CSI-RS in related technologies
  • configure the CSI-RS on different PSSCH transmissions/different slots for example, follow the configuration method of SL CSI-RS in related technologies.
  • the mapping methods are the same, which can simplify the complexity of CSI-RS resource configuration.
  • the CSI-RS resource configuration information includes slot information (such as slot index, virtual slot identification [identifying which CSI-RS resources belong to the same slot]) or PSSCH transmission sequence number information (such as the CSI-RS resource corresponding to the initial transmission , CSI-RS resources correspond to the first transmission, CSI-RS resources correspond to the second transmission%) to reflect the slot of CSI-RS resource mapping.
  • slot information such as slot index, virtual slot identification [identifying which CSI-RS resources belong to the same slot]
  • PSSCH transmission sequence number information such as the CSI-RS resource corresponding to the initial transmission , CSI-RS resources correspond to the first transmission, CSI-RS resources correspond to the second transmission.
  • the transmission resource of the first CSI-RS is a set of CSI-RS resources (that is, the CSI-RS used for beam measurement can be configured/indicated as a set of CSI-RS resource)
  • the numbering method of the CSI-RS resources is at least one of the following:
  • the number of CSI-RS resources is dynamically indicated by SCI
  • the CSI-RS resources can have corresponding numbers, and there is a corresponding relationship between the beam information and the CSI-RS resource numbers.
  • the beam information reporting is the CSI-RS resource number reporting.
  • the numbering method includes at least one of the following:
  • each CSI-RS resource Configure each CSI-RS resource to correspond to a specific ID (ie number).
  • CSI-RS resource numbers are numbered in chronological order to save the complexity of configuration information.
  • the CSI-RS resource number related information is dynamically indicated by the control information.
  • the SCI indicates that the associated PSSCH transmits the CSI-RS corresponding resource number to achieve flexible number indication, especially when CSI-RS resources are mapped to different PSSCH transmissions, the RX UE can identify the corresponding CSI-RS resource number after receiving any PSSCH transmission.
  • the basic unit of CSI-RS resource numbering is per PSSCH/slot, and the CSI-RS resources on different PSSCH/slots are renumbered.
  • RX UE can identify the corresponding CSI-RS resource number after receiving any PSSCH transmission.
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries SL channel status information and/or SL beam related information to assist the second terminal in inter-terminal communication.
  • Beam training is performed to establish a transmission beam between the first terminal and the second terminal.
  • the execution subject may be a CSI transmission device.
  • a CSI transmission device is used as an example to illustrate the implementation of the CSI transmission method.
  • the embodiment provides a CSI transmission device.
  • this embodiment of the present application also provides a device 600 for transmitting channel state information CSI, which includes:
  • the first receiving module 601 is used to receive the first channel state information reference signal CSI-RS;
  • the first sending module 602 is configured to feed back the CSI corresponding to the first CSI-RS to the second terminal; wherein the CSI carries at least one of the following parameters:
  • the device further includes:
  • a first determination module configured to determine parameters carried by the CSI according to first information; wherein the first information includes any one of the following:
  • Predefined information used to indicate the parameters carried by the CSI is not limited.
  • the first determination module includes:
  • the first sub-module is configured to determine, according to the parameter indication information carried in the CSI request information, that the parameters carried by the CSI are: the parameters indicated by the parameter indication information;
  • the second submodule is configured to determine, according to the CSI configuration indication information carried in the CSI request information, that the parameters carried by the CSI are: parameters corresponding to the CSI configuration indicated by the CSI configuration indication information;
  • the third submodule is configured to determine, according to the signaling format of the CSI request information, that the parameters carried by the CSI are: parameters corresponding to the signaling format.
  • the CSI configuration indication information is used to indicate the ID of the CSI configuration
  • the CSI configuration indication information is used to indicate an item index of the CSI configuration in the first preset list.
  • the first determination module includes:
  • the fourth sub-module is used to determine the first time range to which the CSI reporting time belongs;
  • the fifth sub-module is configured to determine, according to the first time range, that the parameters carried by the CSI are: pre-agreed parameters corresponding to the first time range.
  • the first determination module includes:
  • the sixth submodule is configured to determine, according to the configuration information of the first CSI-RS, that the parameters carried by the CSI are: parameters associated with the configuration information of the first CSI-RS;
  • the configuration information of the first CSI-RS is indicated by the second terminal.
  • the device further includes:
  • the second determination module is configured to determine the configuration information of the first CSI-RS according to the second information; wherein the second information includes at least one of the following:
  • Configuration information of channel state information CSI feedback corresponding to the first CSI-RS
  • the configuration information of the first CSI-RS is used to configure or indicate any of the following:
  • the transmission resource of the first CSI-RS is a group of CSI-RS resources
  • the first CSI-RS is embedded in the physical side link shared channel PSSCH for transmission.
  • the second determination module includes:
  • the seventh submodule is configured to determine, according to the CSI-RS configuration identifier indicated by the transmission indication signaling of the first CSI-RS, that the configuration information of the first CSI-RS is the configuration corresponding to the CSI-RS configuration identifier. information;
  • the eighth submodule is configured to determine, according to the item index in the second preset list indicated by the transmission indication signaling of the first CSI-RS, that the configuration information of the first CSI-RS is the item corresponding to the item index. Configuration information.
  • the second determination module includes:
  • the ninth sub-module is used to determine the second time range to which the transmission moment of the first CSI-RS belongs;
  • the tenth submodule is configured to determine, according to the second time range, that the configuration information of the first CSI-RS is: the pre-agreed CSI-RS configuration information corresponding to the second time range.
  • the second determination module includes:
  • An eleventh submodule configured to determine the configuration of the first CSI-RS based on the configuration information of the CSI feedback corresponding to the first CSI-RS and the correlation between the configuration information of the CSI feedback and the CSI-RS configuration information.
  • the information is: CSI-RS configuration information associated with the CSI feedback configuration information.
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries SL channel state information and/or SL beam related information to assist the second terminal in performing inter-terminal beam training. , thereby establishing a transmission beam between the first terminal and the second terminal.
  • the device for transmitting channel state information CSI provided by the embodiments of the present application is a device capable of performing the above-mentioned transmission method of channel state information CSI, then all embodiments of the above-mentioned method for transmitting channel state information CSI are applicable to this device , and can achieve the same or similar beneficial effects.
  • this embodiment of the present application also provides a device 700 for transmitting channel state information CSI, which includes:
  • the second sending module 701 is used to send the first channel state information reference signal CSI-RS;
  • the second receiving module 702 is configured to receive the CSI corresponding to the first CSI-RS fed back by the first terminal; wherein the CSI carries at least one of the following parameters:
  • the transmission resource of the first CSI-RS satisfies at least one of the following:
  • the transmission time of the first CSI-RS is x time units after the transmission time of the CSI-RS transmission indication signaling
  • the transmission resource of the first CSI-RS belongs to the PSSCH reserved by the side link control information SCI associated with the CSI-RS transmission indication signaling;
  • the value of x is a value that is pre-agreed or pre-configured or configured or dynamically indicated.
  • the device further includes:
  • a third determination module configured to determine whether the transmission time of the first CSI-RS needs to be within x time units of the transmission time of the CSI-RS transmission indication signaling according to whether the first terminal needs to adjust the receiving beam. after.
  • the mapping form of the group of CSI-RS resources includes at least one of the following:
  • a set of CSI-RS resources is mapped to a PSSCH transmission or a time slot
  • a set of CSI-RS resources is mapped to different PSSCH transmissions or different time slots.
  • the transmission resource of the first CSI-RS is a group of CSI-RS resources
  • the numbering method of RS resources must be at least one of the following:
  • the number of CSI-RS resources is dynamically indicated by SCI
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries SL channel state information and/or SL beam related information to assist the second terminal in performing inter-terminal beam training. , thereby establishing a transmission beam between the first terminal and the second terminal.
  • the device for transmitting channel state information CSI provided by the embodiments of the present application is a device capable of performing the above-mentioned transmission method of channel state information CSI, then all embodiments of the above-mentioned method for transmitting channel state information CSI are applicable to this device , and can achieve the same or similar beneficial effects.
  • the CSI transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the CSI transmission device provided by the embodiments of the present application can implement each process implemented by the method embodiments in Figures 1 to 5 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a terminal 800, which includes a processor 801 and a memory 802.
  • the memory 802 stores programs or instructions that can be run on the processor 801, for example,
  • the terminal 800 is the first terminal, when the program or instruction is executed by the processor 801, each step of the above CSI transmission method embodiment is implemented, and the same technical effect can be achieved.
  • the terminal 800 is the second terminal, when the program or instruction is executed by the processor 801, the steps of the above CSI transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid duplication, they will not be described again here.
  • An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to receive a first channel state information reference signal CSI-RS; and feed back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries at least one of the following parameters: side link SL channel status information; SL beam related information; or, the communication interface is used to send the first channel status information reference signal CSI-RS; receive the first CSI corresponding to the first CSI-RS fed back by the terminal; wherein the CSI carries at least one of the following parameters: side link SL channel status information; SL beam related information.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 9 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, etc. At least some parts.
  • the terminal 900 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 910 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 9 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or may combine certain components, or arrange different components, which will not be described again here.
  • the input unit 904 may include a graphics processing unit (Graphics Processing Unit, GPU) 9041 and microphone 9042, the graphics processor 9041 processes image data of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode.
  • the display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072 .
  • Touch panel 9071 also known as touch screen.
  • the touch panel 9071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 9072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 901 after receiving downlink data from the network side device, can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network side device.
  • the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
  • Memory 909 may be used to store software programs or instructions as well as various data.
  • the memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 909 may include volatile memory or nonvolatile memory, or memory 909 may include both volatile and nonvolatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), 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, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • Random Access Memory Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct
  • the processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 910.
  • the radio frequency unit 901 is configured to receive the first channel state information reference signal CSI-RS and feed back the CSI corresponding to the first CSI-RS to the second terminal; wherein the CSI carries at least one of the following parameters: side link SL channel status information; SL beam related information;
  • the frequency unit 901 is also configured to send the first channel state information reference signal CSI-RS; receive the CSI corresponding to the first CSI-RS fed back by the first terminal; wherein the CSI carries at least one of the following parameters: Link SL channel status information; SL beam related information.
  • the first terminal feeds back the CSI corresponding to the first CSI-RS to the second terminal.
  • the CSI carries SL channel state information and/or SL beam related information to assist the second terminal in performing inter-terminal beam training. , thereby establishing a transmission beam between the first terminal and the second terminal.
  • the device for transmitting channel state information CSI provided by the embodiments of the present application is a device capable of performing the above-mentioned transmission method of channel state information CSI, then all embodiments of the above-mentioned method for transmitting channel state information CSI are applicable to this device , and can achieve the same or similar beneficial effects.
  • Embodiments of the present application also provide a readable storage medium, with a program or instructions stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above embodiment of the method for transmitting channel state information CSI is implemented. And can achieve the same technical effect. To avoid repetition, they will not be described again here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above.
  • Each process of the embodiment of the method for transmitting channel state information CSI can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above-mentioned channel state information CSI.
  • the various processes of the transmission embodiment can achieve the same technical effect. To avoid repetition, they will not be described again here.
  • Embodiments of the present application also provide a communication system, including: a first terminal and a second terminal.
  • the first terminal can be used to perform the steps of the method for transmitting channel state information CSI as described above.
  • the second terminal can be used to Steps of performing the above-mentioned method for transmitting channel state information CSI.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to related technologies.
  • the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disc, optical disk), including several instructions to cause a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte au domaine technique des communications, et divulgue un procédé et un appareil de transmission d'informations d'état de canal (CSI), et un terminal. Le procédé selon des modes de réalisation de la présente demande comprend les étapes suivantes : un premier terminal reçoit un premier signal de référence d'informations d'état de canal (CSI-RS) ; et le premier terminal renvoie des CSI correspondant au premier CSI-RS à un second terminal, les CSI portant au moins l'un des paramètres suivants : des informations d'état de canal de liaison latérale (SL), et des informations associées à un faisceau SL.
PCT/CN2023/096008 2022-05-25 2023-05-24 Procédé et appareil de transmission d'informations d'état de canal (csi), et terminal Ceased WO2023227022A1 (fr)

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CN202210583724.8 2022-05-25
CN202210583724.8A CN117176216A (zh) 2022-05-25 2022-05-25 信道状态信息csi的传输方法、装置及终端

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021089020A1 (fr) * 2019-11-08 2021-05-14 华为技术有限公司 Procédé, appareil et système de transmission de rapport d'informations d'état de canal de liaison latérale
CN113132037A (zh) * 2020-01-15 2021-07-16 维沃移动通信有限公司 旁链路信息的传输方法和终端设备
WO2021185241A1 (fr) * 2020-03-19 2021-09-23 维沃移动通信有限公司 Procédé de configuration de transmission et terminal
CN113676873A (zh) * 2020-05-15 2021-11-19 夏普株式会社 由用户设备执行的方法及用户设备
CN113708901A (zh) * 2020-05-22 2021-11-26 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN114079493A (zh) * 2020-08-13 2022-02-22 华为技术有限公司 一种信道状态信息测量反馈方法及相关装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021089020A1 (fr) * 2019-11-08 2021-05-14 华为技术有限公司 Procédé, appareil et système de transmission de rapport d'informations d'état de canal de liaison latérale
CN113132037A (zh) * 2020-01-15 2021-07-16 维沃移动通信有限公司 旁链路信息的传输方法和终端设备
WO2021185241A1 (fr) * 2020-03-19 2021-09-23 维沃移动通信有限公司 Procédé de configuration de transmission et terminal
CN113676873A (zh) * 2020-05-15 2021-11-19 夏普株式会社 由用户设备执行的方法及用户设备
CN113708901A (zh) * 2020-05-22 2021-11-26 上海朗帛通信技术有限公司 一种被用于无线通信的节点中的方法和装置
CN114079493A (zh) * 2020-08-13 2022-02-22 华为技术有限公司 一种信道状态信息测量反馈方法及相关装置

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