WO2024087118A1 - 幅度系数的上报方法、装置及存储介质 - Google Patents

幅度系数的上报方法、装置及存储介质 Download PDF

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Publication number
WO2024087118A1
WO2024087118A1 PCT/CN2022/128060 CN2022128060W WO2024087118A1 WO 2024087118 A1 WO2024087118 A1 WO 2024087118A1 CN 2022128060 W CN2022128060 W CN 2022128060W WO 2024087118 A1 WO2024087118 A1 WO 2024087118A1
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WIPO (PCT)
Prior art keywords
information
amplitude coefficient
terminal
amplitude
indication information
Prior art date
Application number
PCT/CN2022/128060
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English (en)
French (fr)
Inventor
李明菊
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/128060 priority Critical patent/WO2024087118A1/zh
Priority to CN202280004606.5A priority patent/CN115997399A/zh
Publication of WO2024087118A1 publication Critical patent/WO2024087118A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device and storage medium for reporting an amplitude coefficient.
  • a network device such as a base station
  • TRP transmission and reception points
  • Multi-TRP multiple TRPs
  • PANEL multi-panels
  • the terminal reports the amplitude coefficient of TRP to the network device. If the terminal has the ability to support multiple reporting schemes, how the terminal determines the amplitude coefficient reporting method actually used is a problem that needs to be solved.
  • the present disclosure provides a method, device and storage medium for reporting an amplitude coefficient.
  • a method for reporting an amplitude coefficient which is applied to a terminal, and includes: in response to supporting at least two amplitude coefficient reporting methods, determining a target amplitude coefficient reporting method; and reporting the amplitude coefficient to a network device based on the target amplitude coefficient reporting method.
  • the method for determining a target amplitude coefficient reporting method includes: receiving first indication information sent by a network device, the first indication information being used to indicate a first amplitude coefficient reporting method; and determining, based on the first indication information, that the first amplitude coefficient reporting method is the target amplitude coefficient reporting method.
  • the first indication information is further used to indicate at least one channel measurement resource CMR corresponding to the first amplitude coefficient reporting method.
  • the method for determining a target amplitude coefficient reporting method includes: determining the target amplitude coefficient reporting method, and sending second indication information to a network device, wherein the second indication information is used to indicate the target amplitude coefficient reporting method.
  • third indication information of a network device is received, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is carried in channel state information CSI.
  • CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, the size of the indication field corresponding to the second information is determined based on the first information; and the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • the PMI information includes at least one of the following:
  • the method further includes: determining a transmission method of a physical downlink shared channel PDSCH performed by the terminal as a target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports spatial basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to a transmitting and receiving point TRP;
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal must support when supporting the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal can optionally support.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • a method for reporting an amplitude coefficient which is applied to a network device and includes: receiving an amplitude coefficient reported by a terminal based on a target amplitude coefficient reporting method.
  • first indication information is sent to the terminal, where the first indication information is used to indicate a first amplitude coefficient reporting method, and the first amplitude coefficient reporting method is a target amplitude coefficient reporting method of the terminal.
  • the first indication information is further used to indicate at least one channel measurement resource CMR corresponding to the first amplitude coefficient reporting method.
  • second indication information sent by the terminal is received, where the second indication information is used to indicate a target amplitude coefficient reporting method of the terminal.
  • the method further includes: sending third indication information to the terminal, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is carried in channel state information CSI.
  • CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • the PMI information includes at least one of the following:
  • the transmission method of the physical downlink shared channel PDSCH performed by the terminal is a target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports spatial basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to a transmitting and receiving point TRP;
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal must support when supporting the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal can optionally support.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • the first group of amplitude coefficients includes amplitude coefficients in a first polarization direction
  • the second group of amplitude coefficients includes amplitude coefficients in a second polarization direction
  • the first polarization direction corresponds to the polarization direction where the strongest amplitude coefficient is located
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • a device for reporting an amplitude coefficient which is applied to a terminal and includes: a determination module, used to determine a target amplitude coefficient reporting method in response to supporting at least two amplitude coefficient reporting methods; and a processing module, used to report the amplitude coefficient to a network device based on the target amplitude coefficient reporting method.
  • the receiving module is used to receive first indication information sent by a network device, where the first indication information is used to indicate a first amplitude coefficient reporting method; the determining module is used to determine that the first amplitude coefficient reporting method is the target amplitude coefficient reporting method based on the first indication information.
  • the first indication information is further used to indicate at least one channel measurement resource CMR corresponding to the first amplitude coefficient reporting method.
  • the determination module is used to determine the target amplitude coefficient reporting method and send second indication information to the network device, where the second indication information is used to indicate the target amplitude coefficient reporting method.
  • the receiving module is used to receive third indication information from a network device, where the third indication information is used to enable the terminal to report second indication information.
  • the second indication information is carried in channel state information CSI.
  • CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • the PMI information includes at least one of the following:
  • the determination module is further used to determine that the transmission method of the physical downlink shared channel PDSCH performed by the terminal is the target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports spatial basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to a transmitting and receiving point TRP;
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal must support when supporting the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal can optionally support.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • the first group of amplitude coefficients includes the amplitude coefficients in a first polarization direction
  • the second group of amplitude coefficients includes the amplitude coefficients in a second polarization direction
  • the first polarization direction corresponds to the polarization direction where the strongest amplitude coefficient is located
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • an amplitude coefficient reporting device which is applied to a network device and includes: a receiving module, which is used to receive the amplitude coefficient reported by a terminal based on a target amplitude coefficient reporting method.
  • the sending module is used to send first indication information to the terminal, where the first indication information is used to indicate a first amplitude coefficient reporting method, and the first amplitude coefficient reporting method is a target amplitude coefficient reporting method of the terminal.
  • the first indication information is further used to indicate at least one channel measurement resource CMR corresponding to the first amplitude coefficient reporting method.
  • the receiving module is used to receive second indication information sent by the terminal, where the second indication information is used to indicate a target amplitude coefficient reporting method of the terminal.
  • the sending module is used to send third indication information to the terminal, and the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is carried in channel state information CSI.
  • CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • the PMI information includes at least one of the following:
  • the method by which the terminal receives the physical downlink shared channel is a target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports spatial basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each NZP CSI-RS resource respectively;
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to a TRP
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal must support when supporting the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that the terminal can optionally support.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • the first group of amplitude coefficients includes the amplitude coefficients in a first polarization direction
  • the second group of amplitude coefficients includes the amplitude coefficients in a second polarization direction
  • the first polarization direction corresponds to the polarization direction where the strongest amplitude coefficient is located
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • a device for reporting an amplitude coefficient comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to: execute the method described in the above-mentioned first aspect and any one of its embodiments.
  • a device for reporting an amplitude coefficient comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the method described in the above second aspect and any one of its embodiments.
  • a storage medium in which instructions are stored.
  • the instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute the method described in the first aspect and any one of its embodiments.
  • a storage medium in which instructions are stored.
  • the instructions in the storage medium are executed by a processor of a network device, the network device is enabled to execute the method described in the above second aspect and any one of its embodiments.
  • a communication system including a terminal and a network device, wherein the first terminal device is used to execute the method described in the first aspect and any one of its embodiments; and the second terminal device is used to execute the method described in the second aspect and any one of its embodiments.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: in response to supporting at least two amplitude coefficient reporting methods, the terminal determines the target amplitude coefficient reporting method, and reports the amplitude coefficient to the network device based on the target amplitude coefficient reporting method.
  • the terminal can determine the target amplitude coefficient reporting method actually used by the terminal when reporting the amplitude coefficient, thereby avoiding the failure or untimely reporting of the amplitude coefficient caused by the terminal not knowing which amplitude coefficient reporting method to adopt, and at the same time, the terminal and the network device reach a consensus on which amplitude coefficient reporting method to adopt, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.
  • Fig. 2 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 3 is a flow chart of a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 4 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 5 is a flow chart of a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 6 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 7 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 8 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 9 is a flow chart showing a method for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 10 is a block diagram of a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 11 is a block diagram of a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 12 is a block diagram showing a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • Fig. 13 is a block diagram showing a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • the wireless communication system includes a network device and a terminal.
  • the terminal is connected to the network device through wireless resources and performs data transmission.
  • the wireless communication system shown in FIG1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, which are not shown in FIG1.
  • the embodiments of the present disclosure do not limit the number of network devices and terminals included in the wireless communication system.
  • the wireless communication system of the embodiment of the present disclosure is a network that provides wireless communication functions.
  • the wireless communication system can adopt different communication technologies, such as code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division multiple access (time division multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA), orthogonal frequency division multiple access (orthogonal frequency-division multiple access, OFDMA), single carrier frequency division multiple access (single carrier FDMA, SC-FDMA), carrier sense multiple access/collision avoidance (Carrier Sense Multiple Access with Collision Avoidance).
  • code division multiple access code division multiple access
  • CDMA code division multiple access
  • wideband code division multiple access wideband code division multiple access
  • WCDMA wideband code division multiple access
  • time division multiple access time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • single carrier frequency division multiple access single carrier frequency division multiple access
  • the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called new wireless network (New Radio, NR).
  • 2G English: generation
  • 3G network 4G network or future evolution network, such as 5G network
  • 5G network can also be called new wireless network (New Radio, NR).
  • NR New Radio
  • the present disclosure sometimes simply refers to a wireless communication network as a network.
  • the wireless access network equipment may also be referred to as a wireless access network equipment.
  • the wireless access network equipment may be: a base station, an evolved node B (base station), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It may also be a gNB in an NR system, or it may also be a component or a part of a base station. It should be understood that in the embodiments of the present disclosure, the specific technology and specific device form adopted by the network equipment are not limited.
  • the network equipment may provide communication coverage for a specific geographical area, and may communicate with a terminal located in the coverage area (cell).
  • the network equipment may also be a vehicle-mounted device.
  • the terminal involved in the present disclosure may also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., which is a device that provides voice and/or data connectivity to users.
  • the terminal may be a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminals are: a smart phone (Mobile Phone), a customer premises equipment (Customer Premise Equipment, CPE), a pocket computer (Pocket Personal Computer, PPC), a handheld computer, a personal digital assistant (Personal Digital Assistant, PDA), a laptop computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc.
  • V2X vehicle-to-everything
  • the terminal device may also be a vehicle-mounted device.
  • V2X vehicle-to-everything
  • a network device such as a base station
  • TRP transmission and reception points
  • Multi-TRP multiple TRPs
  • PANEL multi-panels
  • the terminal reports the amplitude coefficient of TRP to the network device. If the terminal has the ability to support multiple reporting schemes, how the terminal determines the amplitude coefficient reporting method actually used is a problem that needs to be solved.
  • the embodiment of the present disclosure provides a method for reporting an amplitude coefficient.
  • the target amplitude coefficient reporting method is determined, and the amplitude coefficient is reported to the network device based on the target amplitude coefficient reporting method.
  • the terminal can determine the target amplitude coefficient reporting method actually used by the terminal when reporting the amplitude coefficient, thereby avoiding the failure or untimely reporting of the amplitude coefficient caused by the terminal not knowing which amplitude coefficient reporting method to adopt, and at the same time, the terminal and the network device reach a consensus on which amplitude coefficient reporting method to adopt, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of reporting channel state information (CSI).
  • CSI channel state information
  • Fig. 2 is a flow chart of a method for reporting an amplitude coefficient according to an exemplary embodiment. As shown in Fig. 2 , the method for reporting an amplitude coefficient is used in a terminal and includes the following steps.
  • step S11 in response to supporting at least two amplitude coefficient reporting methods, a target amplitude coefficient reporting method is determined.
  • step S12 the amplitude coefficient is reported to the network device based on the target amplitude coefficient reporting method.
  • the target amplitude coefficient reporting method can be understood as the amplitude coefficient reporting method actually adopted by the terminal.
  • the target amplitude coefficients in all the following embodiments are applicable.
  • the target amplitude coefficient reporting method when the terminal supports at least two amplitude coefficient reporting methods, the target amplitude coefficient reporting method is determined, and based on the target amplitude coefficient reporting method, the amplitude coefficient is reported to the network device.
  • the terminal can determine the target amplitude coefficient reporting method actually used by the terminal when reporting the amplitude coefficient, thereby avoiding the failure or delay of the amplitude coefficient reporting caused by the terminal not knowing which amplitude coefficient reporting method to adopt, and at the same time, the terminal and the network device reach an agreement on which amplitude coefficient reporting method to adopt, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • the terminal determines the target amplitude coefficient reporting method, such as determining it through the indication information sent by the network device, or determining it by the terminal itself. In the embodiment of the present disclosure, these methods are respectively described through the following multiple methods as shown in Figures 3 to 5. It should be noted that the multiple schemes shown in Figures 3 to 5 in the embodiment of the present disclosure can be implemented independently, or any one of them can be implemented in combination with other embodiments.
  • FIG3 is a flow chart of an amplitude coefficient reporting method according to an exemplary embodiment, comprising the following steps:
  • step S21 first indication information sent by a network device is received, where the first indication information is used to indicate a first amplitude coefficient reporting method.
  • step S22 based on the first indication information, the first amplitude coefficient reporting method is determined as the target amplitude coefficient reporting method.
  • the first indication information can be carried through radio resource control (Radio Resource Control, RRC) signaling, medium access control control element (Medium Access Control Control Element, MAC CE) signaling and/or downlink control information (Downlink Control Information, DCI).
  • RRC Radio Resource Control
  • MAC CE Medium Access Control Control Element
  • DCI Downlink Control Information
  • the network device sends first indication information to the terminal, and the first indication information is used to indicate the first amplitude coefficient reporting method, so the terminal can determine the first amplitude coefficient reporting method as the terminal target amplitude coefficient reporting method based on the first indication information.
  • the network device and the terminal can be consistent in the amplitude coefficient reporting method actually adopted by the terminal, improving the transmission performance based on multiple TRPs while reducing the signaling overhead of CSI reporting.
  • the first indication information is also used to indicate at least one channel measurement resource (Channel Measurement Resource, CMR) corresponding to the first amplitude coefficient reporting method.
  • CMR Channel Measurement Resource
  • At least one CMR contains at least one non-zero power channel state information reference signal (Non-Zero Power Channel State information-Reference Signal) NZP CSI-RS resource resource, and each NZP CSI-RS resource corresponds to a different TRP.
  • Non-Zero Power Channel State information-Reference Signal Non-Zero Power Channel State information-Reference Signal
  • the first amplitude coefficient reporting method corresponding to each CMR in the at least one CMR may be the same or different.
  • the first amplitude coefficient reporting method corresponding to each CMR in the at least one CMR is the same, that is, the first amplitude coefficient reporting method indicated by the first indication information is applicable to multiple CMRs of the terminal.
  • the first indication information indicates one or more CMRs corresponding to the first amplitude coefficient reporting method
  • different CMRs in at least one CMR of the terminal may be configured with different first amplitude coefficient reporting methods. That is, the first indication information may independently configure the first amplitude coefficient reporting method for different CMRs, and the first amplitude coefficient reporting methods corresponding to different CMRs may be the same or different.
  • the network device can determine the first amplitude coefficient reporting method corresponding to the CMR based on the position of the TRP corresponding to the NZP CSI-RS resource contained in the CMR.
  • the first amplitude coefficient reporting method is amplitude coefficient reporting method 1; if the position of the TRP corresponding to the NZP CSI-RS resource included in the CMR is far away, then the first amplitude coefficient reporting method can be amplitude coefficient reporting method 2 which is different from amplitude coefficient reporting method 1.
  • the network device can determine the first amplitude coefficient reporting method corresponding to the CMR based on the transmission power of the TRP corresponding to the NZP CSI-RS resource contained in the CMR.
  • the first amplitude coefficient reporting method is amplitude coefficient reporting method 1; if the transmit power difference of the TRP corresponding to the NZP CSI-RS resource included in the CMR is large, then the first amplitude coefficient reporting method can be amplitude coefficient reporting method 2 which is different from amplitude coefficient reporting method 1.
  • the first amplitude coefficient reporting method corresponding to each CMR in at least one CMR may be the same or different, thereby improving the transmission performance based on multiple TRPs.
  • the terminal determines a target amplitude coefficient reporting method by itself, and informs the network device of the target amplitude coefficient reporting method, as shown in FIG4 , which is a flow chart of an amplitude coefficient reporting method according to an exemplary embodiment, including the following steps:
  • step S31 a target amplitude coefficient reporting method is determined.
  • the terminal can determine at least one of the reference signal received power (Reference Signal Received Power, RSRP), reference signal received quality (Reference Signal Received Quality, RSRQ) and signal to interference and noise ratio (signal to interference and noise ratio, SINR) corresponding to different NZP CSI-RS.
  • RSRP Reference Signal Received Power
  • RSRQ Reference Signal Received Quality
  • SINR signal to interference and noise ratio
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • RSRP may include at least one of Layer 1 (L1)-RSRP and L3-RSRP.
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • the RSRQ may include at least one of L1-RSRQ and L3-RSRQ.
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • the SINR may include at least one of L1-SINR and L3-SINR.
  • step S32 second indication information is sent to the network device, where the second indication information is used to indicate a target amplitude coefficient reporting method.
  • the terminal determines the target amplitude coefficient reporting method by itself and sends a second indication information to the network device.
  • the second indication information is used to indicate the target amplitude coefficient reporting method. Therefore, the network device can determine the amplitude coefficient reporting method actually adopted by the terminal based on the second indication information, so that the network device and the terminal can be consistent in the amplitude coefficient reporting method actually adopted by the terminal, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • Figure 5 is a flowchart of a method for reporting an amplitude coefficient according to an exemplary embodiment, comprising the following steps:
  • step S41 third indication information of the network device is received, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is used by the terminal to inform the network device of the amplitude coefficient reporting method actually adopted by the terminal.
  • the terminal receives third indication information from the network device. Since the third indication information is used to enable the terminal to report the second indication information, when the second indication information is used to indicate the target amplitude coefficient reporting method, the network device can determine that the amplitude coefficient reporting method actually adopted by the terminal is the target transmission method based on the second indication information. Thereby, the network device and the terminal can be consistent in the amplitude coefficient reporting method actually adopted by the terminal, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • the second indication information is carried in CSI.
  • the second indication information is carried in the CSI, so that the second indication information can be reported simultaneously when the CSI is reported, thereby reducing signaling consumption.
  • CSI includes: first information and second information.
  • the first information corresponds to an indication field of a fixed size, and the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the CSI may include two parts, namely part 1 and part 2. Part 1 may correspond to the first information, and part 2 may correspond to the second information.
  • the size of the indication field corresponding to the first information may be a fixed value, such as a preset value, or a default size specified by a protocol.
  • the size of part 2 of the CSI is determined based on the information in part 1.
  • the size of part 2 indicates the number of bits occupied by part 2 of the CSI, such as 8 bits or 16 bits.
  • the size of part 2 of CSI is determined based on the second indication information in part 1. If the second indication information in part 1 indicates that the amplitude coefficient reporting method actually adopted by the terminal is the first amplitude coefficient reporting method, the size of part 2 will be smaller. Conversely, if the second indication information in part 1 indicates that the amplitude coefficient reporting method actually adopted by the terminal is the second amplitude coefficient reporting method, the size of part 2 will be larger.
  • the second indication information is carried in the first information.
  • the amplitude coefficient reporting method indication field in the first information indicates the amplitude coefficient reporting method actually adopted by the terminal.
  • the second indication information indicates that the amplitude coefficient reporting method actually adopted by the terminal is the first amplitude coefficient reporting method.
  • the bit indicated by the amplitude coefficient reporting method indication field in the first information is 1
  • the second indication information indicates that the amplitude coefficient reporting method actually adopted by the terminal is the second amplitude coefficient reporting method.
  • the signaling overhead of CSI reporting can be reduced when the terminal communicates with multiple TRPs.
  • the first information also includes at least one of the following: channel state information reference signal resource indicator (CRI); layer rank indication information; NZP CSI-RS selection information; wideband channel quality information (CQI); number of non-zero wideband amplitude coefficients; non-zero coefficient number indication information; non-zero coefficient position indication information; mode indication information.
  • CRI channel state information reference signal resource indicator
  • NZP CSI-RS selection information information from the first information
  • CQI wideband channel quality information
  • number of non-zero wideband amplitude coefficients number of non-zero wideband amplitude coefficients
  • non-zero coefficient number indication information non-zero coefficient position indication information
  • mode indication information mode indication information.
  • the first information includes the number of non-zero wideband amplitude coefficients.
  • the number of non-zero broadband amplitude coefficients means the number of broadband amplitude coefficient values that are non-zero.
  • the first information includes non-zero coefficient number indication information.
  • non-zero coefficient number indication information can indicate the number of coefficients whose coherent coefficients are non-zero.
  • the first information includes non-zero coefficient position indication information.
  • non-zero coefficient position indication information can indicate the position of the coefficient whose coherent coefficient is non-zero.
  • the first information includes a mode indication.
  • the mode indication can be used to indicate the CSI feedback mode, codebook mode, etc.
  • the CSI feedback mode may include mode 1 and mode 2, where mode 1 is feedback based on a single TRP and mode 2 is feedback based on multiple TRPs.
  • the CSI feedback mode may also include other modes, which are not limited by the present disclosure.
  • the codebook mode may include codebook structure 1 and codebook structure 2, where codebook structure 1 is to feedback a frequency domain basis vector (FD basis) information for all NZP CSI-RS; codebook structure 2 is to feedback a frequency domain basis vector information for each NZP CSI-RS.
  • the codebook mode may also include other modes, which are not limited by the present disclosure.
  • the second information includes precoding matrix indicator (PMI) information.
  • PMI precoding matrix indicator
  • the PMI information includes at least one of the following: spatial domain basis vector parameter information; frequency domain basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information.
  • the terminal needs to determine the target amplitude coefficient reporting method only when the method by which the terminal receives the physical downlink shared channel is the target transmission method. Therefore, the terminal needs to determine that the transmission method for the physical downlink shared channel is the target transmission method.
  • the target transmission method may be referred to as a coherent joint transmission (CJT) method. Except for the embodiments of the present disclosure, the target transmission method appearing in all the following embodiments may be referred to as a CJT method.
  • CJT coherent joint transmission
  • the terminal by determining that the method in which the terminal receives the physical downlink shared channel is the target transmission method, it is determined that the terminal needs to select the amplitude coefficient reporting method for reporting the amplitude coefficient.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports the spatial basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to one TRP
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target transmission method can satisfy any one of the above-mentioned features A-F, or any two of the features, or any three of the features, etc.
  • the embodiment of the present disclosure does not limit the combination of A-F.
  • the target transmission method satisfies the terminal to report spatial basis vector parameter information for each NZP CSI-RS resource separately.
  • a specified number (L) of beams are selected from the total number of antenna ports N1*N2 of each NZP CSI-RS resource to report the spatial domain basis vector.
  • N1 is the number of antenna ports in the first dimension
  • N2 is the number of antenna ports in the second dimension.
  • the L value can be the same or different.
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource separately.
  • M frequency domain basis vectors are selected from N3 frequency domain basis vectors for each NZP CSI-RS resource.
  • N3 represents the product of the number of Channel Quality Indication subbands (CQI-subbands) and the number of Precoding Matrix Index subbands (PMI-subbands) contained in each CQI-subband.
  • CQI-subbands Channel Quality Indication subbands
  • PMI-subbands Precoding Matrix Index subbands
  • the target transmission method satisfies the terminal to report frequency domain basis vector parameter information for each CMR respectively.
  • the terminal even if the CMR contains multiple NZP CSI-RS resources, the terminal only needs to select M identical frequency domain basis vectors from N3 frequency domain basis vectors for all NZP CSI-RS resources in the CMR. It is not necessary to select M frequency domain basis vectors for each NZP CSI-RS resource.
  • the disclosed embodiment it is possible to determine whether the current transmission method belongs to the target transmission method by judging whether the current transmission method meets the characteristics of the target transmission method, and further determine whether the terminal needs to determine the amplitude coefficient reporting method actually adopted.
  • a target amplitude coefficient reporting method is an amplitude coefficient reporting method that must be supported when a terminal supports a target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that can be optionally supported by a terminal.
  • the amplitude coefficient transmission method that must be supported is amplitude coefficient reporting method 1
  • the amplitude coefficient reporting method that the terminal can optionally support is amplitude coefficient reporting method 2.
  • the terminal needs to report capability information to the network device, and inform the network device through the capability information that it supports amplitude coefficient reporting method 2. Then the target amplitude coefficient reporting method actually used by the terminal can be amplitude coefficient reporting method 1 or amplitude coefficient reporting method 2.
  • the amplitude coefficient transmission method that must be supported is the amplitude coefficient reporting method 2
  • the amplitude coefficient reporting method that the terminal can optionally support is the amplitude coefficient reporting method 1.
  • the terminal needs to report capability information to the network device, and inform the network device through the capability information that it supports the amplitude coefficient reporting method 1.
  • the target amplitude coefficient reporting method actually used by the terminal can be the amplitude coefficient reporting method 1 or the amplitude coefficient reporting method 2.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • the method for reporting a target amplitude coefficient includes method A.
  • the strongest amplitude coefficient in the polarization direction where the strongest coefficient indicator (SCI) is located is 1 by default, and the terminal does not need to report it, but only needs to report the amplitude coefficients at other positions in the polarization direction, and the amplitude coefficients at other positions are differential values from 1; the terminal independently reports the reference amplitude in another polarization direction, and reports the amplitude coefficients at other positions in the polarization direction, and the amplitude coefficients at other positions are differential values from the reference amplitude in the polarization direction.
  • the method for reporting the target amplitude coefficient includes method B.
  • the strongest amplitude coefficient in the group where the SCI is located is 1 by default, and the terminal does not need to report it.
  • the terminal only needs to report the amplitude coefficients at other positions in the group, and the amplitude coefficients at other positions are the difference from 1; for other 2N-1 groups, the terminal reports a reference amplitude for each group, and reports the amplitude coefficients at other positions in the group, and the amplitude coefficients at other positions are the difference from the reference amplitude in the polarization direction.
  • method B needs to report 2N-2 reference amplitudes in addition, so when N is greater than 1, the signaling overhead of method B is relatively large, that is, the size of the CSI second information corresponding to method B is larger.
  • the target amplitude coefficient reporting method is method A
  • the terminal since the terminal only needs to report two groups of amplitude coefficients, when the terminal reports the target amplitude coefficient through CSI, CSI signaling consumption can be reduced.
  • the present disclosure also provides a method for reporting an amplitude coefficient of a network device.
  • FIG6 is a flow chart of a method for reporting an amplitude coefficient according to an exemplary embodiment. As shown in FIG6 , the method for reporting an amplitude coefficient is used in a network device and includes the following steps.
  • step S51 the receiving terminal reports the amplitude coefficient based on the target amplitude coefficient reporting method.
  • the target amplitude coefficient reporting method can be understood as the amplitude coefficient reporting method actually adopted by the terminal.
  • the target amplitude coefficients in all the following embodiments are applicable.
  • the terminal can report the amplitude coefficient based on the target amplitude coefficient reporting method, thereby avoiding the situation where the terminal does not know which amplitude coefficient reporting method to adopt, resulting in failure or untimely reporting of the amplitude coefficient.
  • it also allows the terminal and network equipment to reach a consensus on which amplitude coefficient reporting method to adopt, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • the terminal determines the target amplitude coefficient reporting method, such as determining it through the indication information sent by the network device, or determining it by the terminal itself. In the disclosed embodiment, these methods are respectively described through the following multiple methods as shown in Figures 7 to 9. It should be noted that the multiple schemes shown in Figures 7 to 9 in the disclosed embodiment can be implemented independently, or any one of them can be implemented in combination with other embodiments.
  • FIG. 7 is a flow chart of a method for reporting an amplitude coefficient according to an exemplary embodiment, comprising the following steps:
  • step S61 first indication information is sent to the terminal, where the first indication information is used to indicate a first amplitude coefficient reporting method, and the first amplitude coefficient reporting method is a target amplitude coefficient reporting method of the terminal.
  • the first indication information can be carried via RRC signaling, MAC CE signaling and/or DCI.
  • the network device sends first indication information to the terminal, and the first indication information is used to indicate the first amplitude coefficient reporting method, so the terminal can determine the first amplitude coefficient reporting method as the terminal target amplitude coefficient reporting method based on the first indication information.
  • the network device and the terminal can be consistent in the amplitude coefficient reporting method actually adopted by the terminal, improving the transmission performance based on multiple TRPs while reducing the signaling overhead of CSI reporting.
  • the first indication information is also used to indicate at least one channel measurement resource (CMR) corresponding to the first amplitude coefficient reporting method.
  • CMR channel measurement resource
  • At least one CMR contains at least one non-zero power NZP channel state information reference signal CSI-RS resource, and each NZP CSI-RS resource corresponds to a different TRP.
  • the first amplitude coefficient reporting method corresponding to each CMR in the at least one CMR may be the same or different.
  • the first amplitude coefficient reporting method corresponding to each CMR in the at least one CMR is the same, that is, the first amplitude coefficient reporting method indicated by the first indication information is applicable to multiple CMRs of the terminal.
  • the first indication information indicates one or more CMRs corresponding to the first amplitude coefficient reporting method
  • different CMRs in at least one CMR of the terminal may be configured with different first amplitude coefficient reporting methods. That is, the first indication information may independently configure the first amplitude coefficient reporting method for different CMRs, and the first amplitude coefficient reporting methods corresponding to different CMRs may be the same or different.
  • the network device can determine the first amplitude coefficient reporting method corresponding to the CMR based on the position of the TRP corresponding to the NZP CSI-RS resource contained in the CMR.
  • the first amplitude coefficient reporting method is amplitude coefficient reporting method 1; if the position of the TRP corresponding to the NZP CSI-RS resource included in the CMR is far away, then the first amplitude coefficient reporting method can be amplitude coefficient reporting method 2 which is different from amplitude coefficient reporting method 1.
  • the network device can determine the first amplitude coefficient reporting method corresponding to the CMR based on the transmission power of the TRP corresponding to the NZP CSI-RS resource contained in the CMR.
  • the first amplitude coefficient reporting method is amplitude coefficient reporting method 1; if the transmit power difference of the TRP corresponding to the NZP CSI-RS resource included in the CMR is large, then the first amplitude coefficient reporting method can be amplitude coefficient reporting method 2 which is different from amplitude coefficient reporting method 1.
  • the first amplitude coefficient reporting method corresponding to each CMR in at least one CMR may be the same or different, thereby improving the transmission performance based on multiple TRPs.
  • the terminal determines a target amplitude coefficient reporting method by itself, and informs the network device of the target amplitude coefficient reporting method, as shown in FIG8 , which is a flow chart of an amplitude coefficient reporting method according to an exemplary embodiment, including the following steps:
  • step S71 second indication information sent by a terminal is received, where the second indication information is used to indicate a target amplitude coefficient reporting method of the terminal.
  • the terminal determines the target amplitude coefficient reporting method by itself and sends a second indication information to the network device.
  • the second indication information is used to indicate the target amplitude coefficient reporting method. Therefore, the network device can determine the amplitude coefficient reporting method actually adopted by the terminal based on the second indication information, so that the network device and the terminal can be consistent in the amplitude coefficient reporting method actually adopted by the terminal, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • the terminal can determine at least one of RSRP, RSRQ and SINR corresponding to different NZP CSI-RS.
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • the RSRP may include at least one of Layer 1 (L1)-RSRP and L3-RSRP.
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • the RSRQ may include at least one of L1-RSRQ and L3-RSRQ.
  • the target amplitude coefficient reporting method is determined to be method 1, otherwise the target amplitude coefficient reporting method is determined to be method 2.
  • the SINR may include at least one of L1-SINR and L3-SINR.
  • FIG. 9 is a flowchart of a method for reporting an amplitude coefficient according to an exemplary embodiment, comprising the following steps:
  • step S81 third indication information is sent to the terminal, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is used by the terminal to inform the network device of the amplitude coefficient reporting method actually adopted by the terminal.
  • the network device sends a third indication message to the terminal. Since the third indication message is used to enable the terminal to report the second indication message, when the second indication message is used to indicate the target amplitude coefficient reporting method, the network device can determine that the amplitude coefficient reporting method actually adopted by the terminal is the target transmission method based on the second indication message sent by the terminal. In this way, the network device and the terminal can maintain consistency in the amplitude coefficient reporting method actually adopted by the terminal, thereby improving the transmission performance based on multiple TRPs and reducing the signaling overhead of CSI reporting.
  • the second indication information is carried in CSI.
  • the second indication information is carried in the CSI, so that the second indication information can be reported simultaneously when the CSI is reported, thereby reducing signaling consumption.
  • CSI includes: first information and second information.
  • the first information corresponds to an indication field of a fixed size, and the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the CSI may include two parts, namely part 1 and part 2. Part 1 may correspond to the first information, and part 2 may correspond to the second information.
  • the size of the indication field corresponding to the first information may be a fixed value, such as a preset value, or a default size specified by a protocol.
  • the size of part 2 of the CSI is determined based on the information in part 1.
  • the size of part 2 indicates the number of bits occupied by part 2 of the CSI, such as 8 bits or 16 bits.
  • the size of part 2 of CSI is determined based on the second indication information in part 1. If the second indication information in part 1 indicates that the amplitude coefficient reporting method actually adopted by the terminal is the first amplitude coefficient reporting method, the size of part 2 will be smaller. Conversely, if the second indication information in part 1 indicates that the amplitude coefficient reporting method actually adopted by the terminal is the second amplitude coefficient reporting method, the size of part 2 will be larger.
  • the second indication information is carried in the first information.
  • the amplitude coefficient reporting method indication field in the first information indicates the amplitude coefficient reporting method actually adopted by the terminal.
  • the second indication information indicates that the amplitude coefficient reporting method actually adopted by the terminal is the first amplitude coefficient reporting method.
  • the bit indicated by the amplitude coefficient reporting method indication field in the first information is 1
  • the second indication information indicates that the amplitude coefficient reporting method actually adopted by the terminal is the second amplitude coefficient reporting method.
  • the signaling overhead of CSI reporting can be reduced when the terminal communicates with multiple TRPs.
  • the first information also includes at least one of the following: channel state information reference signal resource indicator (CRI); layer rank indication information; NZP CSI-RS selection information; wideband channel quality information (CQI); number of non-zero wideband amplitude coefficients; non-zero coefficient number indication information; non-zero coefficient position indication information; mode indication information.
  • CRI channel state information reference signal resource indicator
  • NZP CSI-RS selection information information from the first information
  • CQI wideband channel quality information
  • number of non-zero wideband amplitude coefficients number of non-zero wideband amplitude coefficients
  • non-zero coefficient number indication information non-zero coefficient position indication information
  • mode indication information mode indication information.
  • the first information includes the number of non-zero wideband amplitude coefficients.
  • the number of non-zero broadband amplitude coefficients means the number of broadband amplitude coefficient values that are non-zero.
  • the first information includes non-zero coefficient number indication information.
  • non-zero coefficient number indication information can indicate the number of coefficients whose coherent coefficients are non-zero.
  • the first information includes non-zero coefficient position indication information.
  • non-zero coefficient position indication information can indicate the position of the coefficient whose coherent coefficient is non-zero.
  • the first information includes a mode indication.
  • the mode indication can be used to indicate the CSI feedback mode, codebook mode, etc.
  • the CSI feedback mode may include mode 1 and mode 2, where mode 1 is feedback based on a single TRP and mode 2 is feedback based on multiple TRPs.
  • the CSI feedback mode may also include other modes, which are not limited by the present disclosure.
  • the codebook mode may include codebook structure 1 and codebook structure 2, where codebook structure 1 is to feedback a frequency domain basis vector (FD basis) information for all NZP CSI-RS; codebook structure 2 is to feedback a frequency domain basis vector information for each NZP CSI-RS.
  • the codebook mode may also include other modes, which are not limited by the present disclosure.
  • the second information includes precoding matrix indicator (PMI) information.
  • PMI precoding matrix indicator
  • the PMI information includes at least one of the following: spatial domain basis vector parameter information; frequency domain basis vector parameter information; non-zero coefficient position indication information; phase coefficient information; amplitude coefficient information.
  • the terminal needs to determine the target amplitude coefficient reporting method only when the method by which the terminal receives the physical downlink shared channel is the target transmission method. Therefore, the network device needs to determine that the method by which the terminal receives the physical downlink shared channel is the target transmission method.
  • the target transmission method may be referred to as a coherent joint transmission (CJT) method. Except for the embodiments of the present disclosure, the target transmission method appearing in all the following embodiments may be referred to as a CJT method.
  • CJT coherent joint transmission
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports the spatial basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to one TRP
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target transmission method can satisfy any one of the above-mentioned features A-F, or any two of the features, or any three of the features, etc.
  • the embodiment of the present disclosure does not limit the combination of A-F.
  • the target transmission method satisfies the terminal to report spatial basis vector parameter information for each NZP CSI-RS resource separately.
  • a specified number (L) of beams are selected from the total number of antenna ports N1*N2 of each NZP CSI-RS resource to report the spatial domain basis vector.
  • N1 is the number of antenna ports in the first dimension
  • N2 is the number of antenna ports in the second dimension.
  • the L value can be the same or different.
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource separately.
  • M frequency domain basis vectors are selected from N3 frequency domain basis vectors for each NZP CSI-RS resource.
  • N3 represents the product of the number of Channel Quality Indication subbands (CQI-subbands) and the number of Precoding Matrix Index subbands (PMI-subbands) contained in each CQI-subband.
  • CQI-subbands Channel Quality Indication subbands
  • PMI-subbands Precoding Matrix Index subbands
  • the target transmission method satisfies the terminal to report frequency domain basis vector parameter information for each CMR respectively.
  • the terminal even if the CMR contains multiple NZP CSI-RS resources, the terminal only needs to select M identical frequency domain basis vectors from N3 frequency domain basis vectors for all NZP CSI-RS resources in the CMR. It is not necessary to select M frequency domain basis vectors for each NZP CSI-RS resource.
  • the disclosed embodiment it is possible to determine whether the current transmission method belongs to the target transmission method by judging whether the current transmission method meets the characteristics of the target transmission method, and further determine whether the terminal needs to determine the amplitude coefficient reporting method actually adopted.
  • a target amplitude coefficient reporting method is an amplitude coefficient reporting method that must be supported when a terminal supports a target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that can be optionally supported by a terminal.
  • the amplitude coefficient transmission method that must be supported is amplitude coefficient reporting method 1
  • the amplitude coefficient reporting method that the terminal can optionally support is amplitude coefficient reporting method 2.
  • the terminal needs to report capability information to the network device, and inform the network device through the capability information that it supports amplitude coefficient reporting method 2. Then the target amplitude coefficient reporting method actually used by the terminal can be amplitude coefficient reporting method 1 or amplitude coefficient reporting method 2.
  • the amplitude coefficient transmission method that must be supported is amplitude coefficient reporting method 2
  • the amplitude coefficient reporting method that the terminal can optionally support is amplitude coefficient reporting method 1.
  • the terminal needs to report capability information to the network device, and inform the network device through the capability information that it supports amplitude coefficient reporting method 1.
  • the target amplitude coefficient reporting method actually adopted by the terminal can be amplitude coefficient reporting method 1 or amplitude coefficient reporting method 2.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • the response to the target amplitude coefficient reporting includes method A.
  • the strongest amplitude coefficient in the polarization direction where the strongest coefficient indicator (SCI) is located is 1 by default, and the terminal does not need to report it, but only needs to report the amplitude coefficients at other positions in the polarization direction, and the amplitude coefficients at other positions are differential values from 1; the terminal independently reports the reference amplitude in another polarization direction, and reports the amplitude coefficients at other positions in the polarization direction, and the amplitude coefficients at other positions are differential values from the reference amplitude in the polarization direction.
  • the response to the target amplitude coefficient reporting includes method B.
  • the strongest amplitude coefficient in the group where the SCI is located is 1 by default, and the terminal does not need to report it.
  • the terminal only needs to report the amplitude coefficients at other positions in the group, and the amplitude coefficients at other positions are differential values from 1; for other 2N-1 groups, the terminal reports a reference amplitude for each group, and reports the amplitude coefficients at other positions in the group, and the amplitude coefficients at other positions are differential values from the reference amplitude in the polarization direction.
  • method B compared with method A, method B needs to report 2N-2 reference amplitudes additionally, so when N is greater than 1, the signaling overhead of method B is relatively large, that is, the size of the CSI second information corresponding to method B is larger.
  • the target amplitude coefficient reporting method is method A
  • the terminal since the terminal only needs to report two groups of amplitude coefficients, when the terminal reports the target amplitude coefficient through CSI, CSI signaling consumption can be reduced.
  • the embodiment of the present disclosure also provides a reporting device for an amplitude coefficient.
  • the amplitude coefficient reporting device includes hardware structures and/or software modules corresponding to the execution of each function in order to realize the above functions.
  • the embodiment of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiment of the present disclosure.
  • Fig. 10 is a block diagram of a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • the device includes a determination module 101 and a processing module 102.
  • the device 100 for reporting an amplitude coefficient is applied to a terminal.
  • the determination module 101 is used to determine a target amplitude coefficient reporting method in response to supporting at least two amplitude coefficient reporting methods; the processing module is used to report the amplitude coefficient to the network device based on the target amplitude coefficient reporting method.
  • the amplitude coefficient reporting device 100 further includes a receiving module 103.
  • the receiving module 103 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate a first amplitude coefficient reporting method;
  • the determination module 101 is configured to determine, based on first indication information, that a first amplitude coefficient reporting method is a target amplitude coefficient reporting method.
  • the first indication information is further used to indicate at least one CMR corresponding to the first amplitude coefficient reporting method.
  • the determination module 101 is used to determine a target amplitude coefficient reporting method and send second indication information to the network device, where the second indication information is used to indicate the target amplitude coefficient reporting method.
  • the receiving module 103 is used to receive third indication information from the network device, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is carried in channel state information CSI.
  • the CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, and the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • PMI information includes at least one of the following:
  • the determination module 101 is further configured to determine that a transmission method of a physical downlink shared channel PDSCH performed by the terminal is a target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports the spatial basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to one TRP
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that must be supported when the terminal supports the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that can be optionally supported by the terminal.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • the first group of amplitude coefficients includes the amplitude coefficients in a first polarization direction
  • the second group of amplitude coefficients includes the amplitude coefficients in a second polarization direction
  • the first polarization direction corresponds to the polarization direction where the strongest amplitude coefficient is located
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • Fig. 11 is a block diagram of a device for reporting an amplitude coefficient according to an exemplary embodiment.
  • the device includes a receiving module 201.
  • the device 200 for reporting an amplitude coefficient is applied to a network device.
  • the receiving module 201 is used to receive the amplitude coefficient reported by the terminal based on the target amplitude coefficient reporting method.
  • the amplitude coefficient reporting device 200 further includes a sending module 202, and the sending module 202 is used to send a first indication information to the terminal, and the first indication information is used to indicate a first amplitude coefficient reporting method, and the first amplitude coefficient reporting method is a target amplitude coefficient reporting method of the terminal.
  • the first indication information is further used to indicate at least one CMR corresponding to the first amplitude coefficient reporting method.
  • the receiving module 201 is used to receive second indication information sent by a terminal, where the second indication information is used to indicate a target amplitude coefficient reporting method of the terminal.
  • the sending module 202 is used to send third indication information to the terminal, where the third indication information is used to enable the terminal to report the second indication information.
  • the second indication information is carried in channel state information CSI.
  • the CSI includes: first information and second information, the first information corresponds to an indication field of a fixed size, and the size of the indication field corresponding to the second information is determined based on the first information; the second indication information is carried in the first information.
  • the first information further includes at least one of the following information:
  • the second information includes precoding matrix indication PMI information
  • the PMI information includes at least one of the following:
  • the method in which the terminal receives the physical downlink shared channel is a target transmission method.
  • the target transmission method satisfies at least one of the following:
  • Each of the at least one CMR includes at least one NZP CSI-RS resource
  • the terminal reports the spatial basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports the frequency domain basis vector parameter information for each NZP CSI-RS resource
  • the terminal reports frequency domain basis vector parameter information for each CMR respectively;
  • Each NZP CSI-RS resource corresponds to one TRP
  • the number of TCI states corresponding to PDSCH transmission is at least 1.
  • the target amplitude coefficient reporting method is an amplitude coefficient reporting method that must be supported when the terminal supports the target transmission method; and/or the target amplitude coefficient reporting method is an amplitude coefficient reporting method that can be optionally supported by the terminal.
  • the target amplitude coefficient reporting method includes at least one of the following:
  • the first group of amplitude coefficients includes the amplitude coefficients in a first polarization direction
  • the second group of amplitude coefficients includes the amplitude coefficients in a second polarization direction
  • the first polarization direction corresponds to the polarization direction where the strongest amplitude coefficient is located
  • N is the number of NZP CSI-RS contained in a CMR
  • each NZP CSI-RS corresponds to 2 groups of amplitude coefficients
  • the 2 groups of amplitude coefficients correspond to different polarization directions, where N is a positive integer.
  • Fig. 12 is a block diagram of a reporting device for amplitude coefficient according to an exemplary embodiment.
  • the device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.
  • the apparatus 300 may include one or more of the following components: a processing component 302 , a memory 304 , a power component 306 , a multimedia component 308 , an audio component 310 , an input/output (I/O) interface 312 , a sensor component 314 , and a communication component 316 .
  • the processing component 302 generally controls the overall operation of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 302 may include one or more processors 320 to execute instructions to complete all or part of the steps of the above-mentioned method.
  • the processing component 302 may include one or more modules to facilitate the interaction between the processing component 302 and other components.
  • the processing component 302 may include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.
  • the memory 304 is configured to store various types of data to support operations on the device 300. Examples of such data include instructions for any application or method operating on the device 300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 306 provides power to the various components of the device 300.
  • the power component 306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 300.
  • the multimedia component 308 includes a screen that provides an output interface between the device 300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
  • the multimedia component 308 includes a front camera and/or a rear camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
  • the audio component 310 is configured to output and/or input audio signals.
  • the audio component 310 includes a microphone (MIC), and when the device 300 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal.
  • the received audio signal can be further stored in the memory 304 or sent via the communication component 316.
  • the audio component 310 also includes a speaker for outputting audio signals.
  • I/O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor assembly 314 includes one or more sensors for providing various aspects of the status assessment of the device 300.
  • the sensor assembly 314 can detect the open/closed state of the device 300, the relative positioning of components, such as the display and keypad of the device 300, the sensor assembly 314 can also detect the position change of the device 300 or a component of the device 300, the presence or absence of user contact with the device 300, the orientation or acceleration/deceleration of the device 300, and the temperature change of the device 300.
  • the sensor assembly 314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact.
  • the sensor assembly 314 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 314 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices.
  • the device 300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 316 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 316 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 300 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • controllers microcontrollers, microprocessors or other electronic components to perform the above method.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, and the instructions can be executed by the processor 320 of the device 300 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • FIG. 13 is a block diagram of a reporting device for an amplitude coefficient according to an exemplary embodiment.
  • the device 400 may be provided as a network device.
  • the device 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432 for storing instructions executable by the processing component 422, such as an application.
  • the application stored in the memory 432 may include one or more modules, each of which corresponds to a set of instructions.
  • the processing component 422 is configured to execute instructions to perform the above method.
  • the device 400 may also include a power supply component 426 configured to perform power management of the device 400, a wired or wireless network interface 450 configured to connect the device 400 to a network, and an input/output (I/O) interface 458.
  • the device 400 may operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.
  • a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 432 including instructions, which can be executed by the processing component 422 of the device 400 to perform the above method.
  • the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.
  • plural refers to two or more than two, and other quantifiers are similar thereto.
  • “And/or” describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B may represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
  • the singular forms “a”, “the” and “the” are also intended to include plural forms, unless the context clearly indicates other meanings.
  • first, second, etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or importance. In fact, the expressions “first”, “second”, etc. can be used interchangeably.
  • the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

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Abstract

本公开是关于一种幅度系数的上报方法、装置及存储介质，涉及通信技术领域，用于提高基于多TRP的传输性能同时减少CSI上报的信令开销。该方法包括：响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；基于所述目标幅度系数上报方法，向网络设备上报幅度系数。

Description

幅度系数的上报方法、装置及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及一种幅度系数的上报方法、装置及存储介质。
背景技术
当网络设备(例如基站)有多个发送接收点(Transmission Reception Point，TRP)时，可以使用多个TRP(Multi-TRP)/多面板(PANEL)为终端提供服务。
相关技术中，终端向网络设备上报TRP的幅度系数时有多种上报方法。如果终端具有支持多种上报方案的能力，那么终端如何确定实际使用的幅度系数上报方法，是需要解决的问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种幅度系数的上报方法、装置及存储介质。
根据本公开实施例的第一方面，提供一种幅度系数的上报方法，应用于终端，包括：响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；基于所述目标幅度系数上报方法，向网络设备上报幅度系数。
一种实施方式中，所述确定目标幅度系数上报方法，包括：接收网络设备发送的第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法；基于所述第一指示信息，确定所述第一幅度系数上报方法为所述目标幅度系数上报方法。
一种实施方式中，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
一种实施方式中，所述确定目标幅度系数上报方法，包括：确定所述目标幅度系数上报方法，向网络设备发送第二指示信息，所述第二指示信息用于指示所述目标幅度系数上报方法。
一种实施方式中，接收网络设备的第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
一种实施方式中，所述第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；所述第二指示信息承载 在所述第一信息中。
一种实施方式中，所述第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
非零功率NZP信道状态信息参考信号CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，所述第二信息包括预编码矩阵指示PMI信息；
所述PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，所述方法还包括：确定所述终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
一种实施方式中，所述目标传输方法满足以下至少一项：
所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
所述终端针对每个CMR分别上报频域基向量参数信息；
所述每个NZP CSI-RS资源对应一个发送接收点TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
一种实施方式中，所述目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅 度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
根据本公开实施例的第二方面，提供一种幅度系数的上报方法，应用于网络设备，包括：接收终端基于目标幅度系数上报方法上报的幅度系数。
一种实施方式中，向所述终端发送第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法，所述第一幅度系数上报方法为所述终端的目标幅度系数上报方法。
一种实施方式中，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
一种实施方式中，接收所述终端发送的第二指示信息，所述第二指示信息用于指示所述终端的目标幅度系数上报方法。
一种实施方式中，所述方法还包括：向所述终端发送第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
一种实施方式中，所述第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；所述第二指示信息承载在所述第一信息中。
一种实施方式中，所述第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
非零功率NZP信道状态信息参考信号CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，所述第二信息包括预编码矩阵指示PMI信息；
所述PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，所述终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
一种实施方式中，所述目标传输方法满足以下至少一项：
所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
所述终端针对每个CMR分别上报频域基向量参数信息；
所述每个NZP CSI-RS资源对应一个发送接收点TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
一种实施方式中，所述目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
根据本公开实施例的第三方面，提供一种幅度系数的上报装置，应用于终端，包括：确定模块，用于响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；处理模块，用于基于所述目标幅度系数上报方法，向网络设备上报幅度系数。
一种实施方式中，接收模块，用于接收网络设备发送的第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法；所述确定模块，用于基于所述第一指示信息，确定所述第一幅度系数上报方法为所述目标幅度系数上报方法。
一种实施方式中，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
一种实施方式中，所述确定模块，用于确定所述目标幅度系数上报方法，向网络设备发送第二指示信息，所述第二指示信息用于指示所述目标幅度系数上报方法。
一种实施方式中，接收模块，用于接收网络设备的第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
一种实施方式中，所述第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；所述第二指示信息承载在所述第一信息中。
一种实施方式中，所述第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
非零功率NZP信道状态信息参考信号CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，所述第二信息包括预编码矩阵指示PMI信息；
所述PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，所述确定模块，还用于确定所述终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
一种实施方式中，所述目标传输方法满足以下至少一项：
所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
所述终端针对每个CMR分别上报频域基向量参数信息；
所述每个NZP CSI-RS资源对应一个发送接收点TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
一种实施方式中，所述目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
根据本公开实施例的第四方面，提供一种幅度系数的上报装置，应用于网络设备，包括：接收模块，用于接收终端基于目标幅度系数上报方法上报的幅度系数。
一种实施方式中，发送模块，用于向所述终端发送第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法，所述第一幅度系数上报方法为所述终端的目标幅度系数上报方法。
一种实施方式中，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
一种实施方式中，接收模块，用于接收所述终端发送的第二指示信息，所述第二指示信息用于指示所述终端的目标幅度系数上报方法。
一种实施方式中，发送模块，用于向所述终端发送第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
一种实施方式中，所述第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；所述第二指示信息承载在所述第一信息中。
一种实施方式中，所述第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
NZP CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，所述第二信息包括预编码矩阵指示PMI信息；
所述PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，所述终端接收物理下行共享信道的方法为目标传输方法。
一种实施方式中，所述目标传输方法满足以下至少一项：
所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
所述终端针对每个CMR分别上报频域基向量参数信息；
所述每个NZP CSI-RS资源对应一个TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
一种实施方式中，所述目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
根据本公开实施例的第五方面，提供一种幅度系数的上报装置，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第一方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第六方面，提供一种幅度系数的上报装置，包括：处理器；用于存储处理器可执行指令的存储器；其中，所述处理器被配置为：执行上述第二方面及其任 意一种实施方式中所述的方法。
根据本公开实施例的第七方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行上述第一方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第八方面，提供一种存储介质，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行上述第二方面及其任意一种实施方式中所述的方法。
根据本公开实施例的第九方面，提供一种通信系统，包括终端和网络设备，其中，所述第一终端设备用于执行上述第一方面及其任意一种实施方式所述的方法；所述第二终端设备用于执行如上述第二方面及其任意一种实施方式所述的方法。
本公开的实施例提供的技术方案可以包括以下有益效果：响应于支持至少两种幅度系数上报方法，终端确定目标幅度系数上报方法，并基于目标幅度系数上报方法，向网络设备上报幅度系数。由此，终端可以确定上报幅度系数时终端实际使用的目标幅度系数上报方法，从而避免终端不知道采取何种幅度系数上报方法导致幅度系数上报失败或不及时，同时也让终端和网络设备在采用哪种幅度系数上报方法上达成一致，提高了基于多TRP的传输性能同时减少CSI上报的信令开销。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种无线通信系统示意图。
图2是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图3是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图4是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图5是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图6是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图7是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图8是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图9是根据一示例性实施例示出的一种幅度系数的上报方法的流程图。
图10是根据一示例性实施例示出的一种幅度系数的上报装置的框图。
图11是根据一示例性实施例示出的一种幅度系数的上报装置的框图。
图12是根据一示例性实施例示出的一种用于幅度系数的上报装置的框图。
图13是根据一示例性实施例示出的一种用于幅度系数的上报装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。
本公开实施例提供的幅度系数的上报方法可应用于图1所示的无线通信系统中。参阅图1所示，该无线通信系统中包括网络设备和终端。终端通过无线资源与网络设备相连接，并进行数据传输。
可以理解的是，图1所示的无线通信系统仅是进行示意性说明，无线通信系统中还可包括其它网络设备，例如还可以包括核心网设备、无线中继设备和无线回传设备等，在图1中未画出。本公开实施例对该无线通信系统中包括网络设备数量和终端数量不做限定。
进一步可以理解的是，本公开实施例无线通信系统，是一种提供无线通信功能的网络。无线通信系统可以采用不同的通信技术，例如码分多址(code division multiple access,CDMA)、宽带码分多址(wideband code division multiple access，WCDMA)、时分多址(time division multiple access，TDMA)、频分多址(frequency division multiple access，FDMA)、正交频分多址(orthogonal frequency-division multiple access，OFDMA)、单载波频分多址(single Carrier FDMA，SC-FDMA)、载波侦听多路访问/冲突避免(Carrier Sense Multiple Access with Collision Avoidance)。根据不同网络的容量、速率、时延等因素可以将网络分为2G(英文：generation)网络、3G网络、4G网络或者未来演进网络，如5G网络，5G网络也可称为是新无线网络(New Radio，NR)。为了方便描述，本公开有时会将无线通信网络简称为网络。
进一步的，本公开中涉及的网络设备也可以称为无线接入网设备。该无线接入网设备可以是：基站、演进型基站(evolved node B，基站)、家庭基站、无线保真(wireless fidelity，WIFI)系统中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等，还可以为NR系统中的gNB，或者，还可以是构成基站的组件或一部分设备等。应理解，本公开的实施例中，对网络设备所采用的具体技术和具体设备形态不做限定。在本公开中，网络设备可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域(小区)内的终端进行通信。此外，当为车联网(V2X)通信系统时，网络设备还可以是车载设备。
进一步的，本公开中涉及的终端，也可以称为终端设备、用户设备(User Equipment，UE)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，终端可以是具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：智能手机(Mobile Phone)、客户前置设备(Customer Premise Equipment，CPE)，口袋计算机(Pocket Personal Computer，PPC)、掌上电脑、个人数字助理(Personal Digital Assistant，PDA)、笔记本电脑、平板电脑、可穿戴设备、或者车载设备等。此外，当为车联网(V2X)通信系统时，终端设备还可以是车载设备。应理解，本公开实施例对终端所采用的具体技术和具体设备形态不做限定。
当网络设备(例如基站)有多个发送接收点(Transmission Reception Point，TRP)时，可以使用多个TRP(Multi-TRP)/多面板(PANEL)为终端提供服务。
相关技术中，终端向网络设备上报TRP的幅度系数时有多种上报方法。如果终端具有支持多种上报方案的能力，那么终端如何确定实际使用的幅度系数上报方法，是需要解决的问题。
基于此，本公开实施例提供一种幅度系数的上报方法，在终端支持至少两种幅度系数上报方法时，确定目标幅度系数上报方法，并基于目标幅度系数上报方法，向网络设备上报幅度系数。由此，终端可以确定上报幅度系数时终端实际使用的目标幅度系数上报方法，从而避免终端不知道采取何种幅度系数上报方法导致幅度系数上报失败或不及时，同时也让终端和网络设备在采用哪种幅度系数上报方法上达成一致，提高了基于多TRP的传输性能同时减少信道状态信息(channel state information，CSI)上报的信令开销。
图2是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，如图2所示，幅度系数的上报方法用于终端中，包括以下步骤。
在步骤S11中，响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法。
在步骤S12中，基于目标幅度系数上报方法，向网络设备上报幅度系数。
其中，目标幅度系数上报方法可以理解为终端实际采用的幅度系数上报方法。以下所有实施例中的目标幅度系数均适用。
在本公开实施例中，在终端支持至少两种幅度系数上报方法时，确定目标幅度系数上报方法，并基于目标幅度系数上报方法，向网络设备上报幅度系数。由此，终端可以确定上报幅度系数时终端实际使用的目标幅度系数上报方法，从而避免终端不知道采取何种幅度系数上报方法导致幅度系数上报失败或不及时，同时也让终端和网络设备在采用哪种幅度系数上报方法上达成一致，提高了基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例中，终端确定目标幅度系数上报方法可以有很多种方法，例如通过网 络设备发送的指示信息确定，又例如终端自己确定。本公开实施例中通过以下如图3-图5所示的多个方法对这些方式分别进行说明。需要说明，本公开实施例中如图3-图5所示的多个方案是可以各自独立被实施例的，也可以是其中的任意一个实施例结合其他实施例一起被实施。
在本公开实施例提供的一种幅度系数上报方法中，基于网络设备发送的第一指示信息，确定目标幅度系数上报方法。如图3所示，图3是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S21中，接收网络设备发送的第一指示信息，第一指示信息用于指示第一幅度系数上报方法。
在步骤S22中，基于第一指示信息，确定第一幅度系数上报方法为目标幅度系数上报方法。
一示例性实施例中，第一指示信息可以通过无线资源控制(Radio Resource Control，RRC)信令，媒体接入控制控制单元(Medium Access Control Control Element，MAC CE)信令和\或下行控制信息(Downlink Control Information，DCI)携带。
在本公开实施例中，网络设备向终端发送第一指示信息，第一指示信息用于指示第一幅度系数上报方法，因此终端可以基于第一指示信息将第一幅度系数上报方法确定为终端目标幅度系数上报方法。从而，网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中，第一指示信息还用于指示第一幅度系数上报方法对应的至少一个信道测量资源(Channel Measurement Resource，CMR)。
其中，至少一个CMR包含至少一个非零功率信道状态信息参考信号(Non-Zero Power Channel State information-Reference Signal)NZP CSI-RS资源resource，每个NZP CSI-RS resource对应不同的TRP。
在一些实施例中，至少一个CMR中每个CMR对应的第一幅度系数上报方法可以相同也可以不同。
一示例性实施例中，若第一指示信息不指示第一幅度系数上报方法对应的CMR时，至少一个CMR中每个CMR对应的第一幅度系数上报方法相同。即该第一指示信息指示的第一幅度系数上报方法适用于终端的多个CMR。
另一示例性实施例中，若第一指示信息指示了第一幅度系数上报方法对应的一个或多个CMR时，终端的至少一个CMR中不同CMR可以被配置不同的第一幅度系数上报方法。即第一指示信息可以针对不同的CMR独立配置第一幅度系数上报方法，而不同CMR对应 的第一幅度系数上报方法可以相同或不同。
例如，网络设备可以基于CMR包含的NZP CSI-RS resource对应的TRP的位置确定CMR对应的第一幅度系数上报方法。
更具体的，若CMR包含的NZP CSI-RS resource对应的TRP的位置是接近的，那么第一幅度系数上报方法为幅度系数上报方法1；若CMR包含的NZP CSI-RS resource对应的TRP的位置较远，那么第一幅度系数上报方法可以为不同于幅度系数上报方法1的幅度系数上报方法2。
又例如，网络设备可以基于CMR包含的NZP CSI-RS resource对应的TRP的发送功率确定CMR对应的第一幅度系数上报方法。
更具体的，若CMR包含的NZP CSI-RS resource对应的TRP的发送功率是接近或相同的，那么第一幅度系数上报方法为幅度系数上报方法1；若CMR包含的NZP CSI-RS resource对应的TRP的发送功率差距较大，那么第一幅度系数上报方法可以为不同于幅度系数上报方法1的幅度系数上报方法2。
在本公开实施例中，至少一个CMR中每个CMR对应的第一幅度系数上报方法可以相同也可以不同，从而提高基于多TRP的传输性能。
在本公开实施例提供的一种幅度系数上报方法中，由终端自己确定目标幅度系数上报方法，并告知网络设备目标幅度系数上报方法，如图4所示，图4是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S31中，确定目标幅度系数上报方法。
一些实施例中，终端可以基于不同NZP CSI-RS对应的参考信号接收功率(Reference Signal Received Power，RSRP)，参考信号接收质量(Reference Signal Received Quality，RSRQ)和信号与干扰噪声比(signal to interference and noise ratio，SINR)中的至少一项确定。
一示例性实施例中，不同NZP CSI-RS之间的RSRP差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中RSRP可以包含Layer1(L1)-RSRP和L3-RSRP中的至少一项。
另一示例性实施例中，不同NZP CSI-RS之间的RSRQ差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中RSRQ可以包含L1-RSRQ和L3-RSRQ中的至少一项。
又一示例性实施例中，不同NZP CSI-RS之间的SINR差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中SINR可以包含 L1-SINR和L3-SINR中的至少一项。
在步骤S32中，向网络设备发送第二指示信息，第二指示信息用于指示目标幅度系数上报方法。
在本公开实施例中，由终端自己确定目标幅度系数上报方法，并向网络设备发送第二指示信息，第二指示信息用于指示目标幅度系数上报方法，因此网络设备可以基于第二指示信息确定终端实际采用的幅度系数上报方法，从而网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中，终端在发送第二指示信息之前首先需要确定自己能够上报第二指示信息。如图5所示，图5是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S41中，接收网络设备的第三指示信息，第三指示信息用于使能终端上报第二指示信息。
一些实施例中，第二指示信息用于终端告知网络设备自身实际采用的幅度系数上报方法。
在本公开实施例中，终端通过接收网络设备的第三指示信息，由于第三指示信息用于使能终端上报第二指示信息，当第二指示信息用于指示目标幅度系数上报方法时，网络设备可以基于第二指示信息确定终端实际采用的幅度系数上报方法为目标传输方法，从而网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中的一些实施例中，第二指示信息承载在CSI中。
本公开实施例通过将第二指示信息承载在CSI中，在CSI上报时能够同时上报第二指示信息，减少信令消耗。
在本公开实施例提供的一种幅度系数上报方法中，CSI包括：第一信息和第二信息。
其中，第一信息对应有固定大小的指示域，第二信息对应指示域的大小基于第一信息确定；第二指示信息承载在第一信息中。
一示例性实施例中，CSI可以包括两个部分，即部分(part)1和part 2。其中，part 1可以对应第一信息，part 2可以对应第二信息。
另一示例性实施例中，第一信息对应的指示域的size可以是固定值。例如是预先设定的，或者是协议规定的默认size等。
另一示例性实施例中，CSI的part 2的size基于part 1中的信息确定。其中，part 2的size表示CSI的part 2所占用的比特(bit)数的大小。如占用8个bit或16个bit等。
例如，CSI的part 2的size基于part 1中的第二指示信息确定。若part 1中的第二指示信息指示终端实际采用的幅度系数上报方法为第一种幅度系数上报方法，则part 2的size就会小一些。反之，若part 1中的第二指示信息指示终端实际采用的幅度系数上报方法为第二种幅度系数上报方法，则part 2的size就会大一些。
另一示例性实施例中，第二指示信息承载在第一信息中。通过第一信息中的幅度系数上报方法指示域指示终端实际采用的幅度系数上报方法。
例如，第一信息中的幅度系数上报方法指示域指示的比特位为0时，第二指示信息指示终端实际采用的幅度系数上报方法为第一种幅度系数上报方法。第一信息中的幅度系数上报方法指示域指示的比特位为1时，第二指示信息指示终端实际采用的幅度系数上报方法为第二种幅度系数上报方法。
在本公开实施例中，通过动态调整CSI不同部分的大小，当第二指示信息指示的终端实际采用的幅度系数上报方法为第一种幅度系数上报方法时，由于第一种幅度系数上报方法将至少一个NZP CSI-RS分为了两组，在终端与多TRP通信时，可以减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中，第一信息还包括以下至少一项：信道状态信息参考信号资源指示(channel state information reference signal resource indicator，CRI)；层rank指示信息；NZP CSI-RS选择信息；宽带信道质量信息(channel quality indicator，CQI)；非零宽带幅度系数个数；非零系数个数指示信息；非零系数位置指示信息；模式指示信息。
一示例性实施例中，第一信息包括非零宽带幅度系数个数。
可以理解，非零宽带幅度系数个数即表示宽带幅度系数值为非零的数量。
一示例性实施例中，第一信息包括非零系数个数指示信息。
可以理解，非零系数个数指示信息可以指示相干系数为非零的系数的数量。
一示例性实施例中，第一信息包括非零系数位置指示信息。
可以理解，非零系数位置指示信息可以指示相干系数为非零的系数的位置。
一示例性实施例中，第一信息包括模式指示。
例如，模式指示可以用于指示CSI反馈模式、码本模式等。CSI反馈模式可以包括模式1和模式2，模式1为基于单个TRP的反馈，模式2为基于多个TRP的反馈。当然，CSI反馈模式也可以包含其它模式，本公开不作限制。码本模式可以包括码本结构1和码 本结构2，码本结构1为针对所有NZP CSI-RS，反馈一份频域基向量(frequency domain basis，FD basis)信息；码本结构2为针对每个NZP CSI-RS，分别反馈一份频域基向量信息。码本模式也可以包含其它模式，本公开不作限制。
在本公开实施例提供的一种幅度系数上报方法中，第二信息包括预编码矩阵指示(precoding matrix indicator，PMI)信息。
其中，PMI信息至少包括以下至少一项：空域基向量参数信息；频域基向量参数信息；非零系数位置指示信息；相位系数信息；幅度系数信息。
在本公开实施例提供的一种幅度系数上报方法中，只有在终端接收物理下行共享信道的方法为目标传输方法时，终端才需要确定目标幅度系数上报方法，因此，终端需要确定进行物理下行共享信道的传输方法为目标传输方法。
在本公开实施例中，目标传输方法可以称为相干联合传输(Coherent joint transmission，CJT)方法。除本公开实施例外，以下所有实施例中出现的目标传输方法均可被称为CJT方法。
在本公开实施例中，通过确定终端接收物理下行共享信道的方法为目标传输方法，确定终端需要选择进行幅度系数上报的幅度系数上报方法。
在本公开实施例提供的一种幅度系数上报方法中，目标传输方法满足以下至少一项：
A.至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
B.终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
C.终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
D.终端针对每个CMR分别上报频域基向量参数信息；
E.每个NZP CSI-RS资源对应一个TRP；
F.PDSCH传输对应的TCI状态的数量为至少1个。
其中，目标传输方法可以满足上述A-F中任意一项特征，或任意两项特征，或任意三项特征等，本公开实施例对A-F的组合不做限定。
一示例性实施例中，目标传输方法满足终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息。
例如，从各个NZP CSI-RS资源的天线端口总数N1*N2中分别选出指定数量(L)的波束来上报空间域基向量。其中，N1为第一维度天线端口数，N2为第二维度天线端口数。针对不同NZP CSI-RS资源，L值可以相同或不同。
终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息。
例如，分别从N3个频域基向量中针对各个NZP CSI-RS资源分别选出M个频域基向 量。其中，N3表示：信道质量指示子带(Channel Quality Indication subband，CQI-subband)数量与每个CQI-subband包含的预编码码本索引子带(Precoding Matrix Index subband，PMI-subband)的数量的乘积。其中，针对不同NZP CSI-RS资源，M值可以相同或不同。
一示例性实施例中，目标传输方法满足终端针对每个CMR分别上报频域基向量参数信息。
例如，针对一个CMR，即使该CMR包含了多个NZP CSI-RS资源，终端也只需要针对该CMR中所有的NZP CSI-RS资源，从N3个频域基向量中选出M个相同的频域基向量。不需要针对每个NZP CSI-RS资源，分别选出M个频域基向量。
在本公开实施例中，可以通过判断当前传输方法是否满足目标传输方法具有的特征，以此确定当前传输方法是否属于目标传输方法，进一步确定终端是否需要确定实际采用的幅度系数上报方法。
在本公开实施例提供的一种幅度系数上报方法中，目标幅度系数上报方法为终端支持目标传输方法时必须支持的幅度系数上报方法；和/或目标幅度系数上报方法为终端可选支持的幅度系数上报方法。
一示例性实施例中，终端支持目标传输方法时必须支持的幅度系数传输方法为幅度系数上报方法1，终端可选支持的幅度系数上报方法为幅度系数上报方法2。终端需要向网络设备上报能力信息，通过能力信息告知网络设备自己支持幅度系数上报方法2。则终端实际采用的目标幅度系数上报方法可以为幅度系数上报方法1或幅度系数上报方法2。
另一示例性实施例中，终端支持目标传输方法时必须支持的幅度系数传输方法为幅度系数上报方法2，终端可选支持的幅度系数上报方法为幅度系数上报方法1。终端需要向网络设备上报能力信息，通过能力信息告知网络设备自己支持幅度系数上报方法1。则终端实际采用的目标幅度系数上报方法可以为幅度系数上报方法1或幅度系数上报方法2。
在本公开实施例提供的一种幅度系数的上报方法中，目标幅度系数上报方法包括以下至少一种：
A.上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
B.上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，2组幅度系数对应不同的极化方向，其中，N为正整数。
一示例性实施例中，响应于目标幅度系数上报方法包括方法A。这种情况下，最强系数指示(strongest coefficient indicator，SCI)所在极化方向上的最强幅度系数默认为1，终 端无需上报，只需上报该极化方向上其他位置上的幅度系数即可，其它位置上的幅度系数为与1的差分值；终端独立上报另一极化方向上的参考幅度，并上报该极化方向上其它位置上的幅度系数，其他位置上的幅度系数为与该极化方向上参考幅度的差分值。
另一示例性实施例中，响应于目标幅度系数上报方法包括方法B。这种情况下，SCI所在组内的最强幅度系数默认为1，终端无需上报，终端只需上报该组内其他位置上的幅度系数即可，其它位置上的幅度系数为与1的差分值；针对其他2N-1组，终端针对每组上报一个参考幅度，并上报该组内其它位置上的幅度系数，其他位置上的幅度系数为与该极化方向上参考幅度的差分值。与方法A相比，方法B需要额外上报2N-2个参考幅度，所以在N大于1时方法B的信令开销相对大些，即方法B对应的CSI第二信息的size要大些。
在本公开实施例中，当目标幅度系数上报方法为方法A时，由于终端只需上报两组幅度系数，因此在终端通过CSI上报目标幅度系数时，能够减少CSI信令消耗。
基于相同的构思，本公开还提供一种应用于网络设备的幅度系数的上报方法。
图6是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，如图6所示，幅度系数的上报方法用于网络设备中，包括以下步骤。
在步骤S51中，接收终端基于目标幅度系数上报方法上报的幅度系数。
其中，目标幅度系数上报方法可以理解为终端实际采用的幅度系数上报方法。以下所有实施例中的目标幅度系数均适用。
在本公开实施例中，终端可以基于目标幅度系数上报方法上报幅度系数，从而避免终端不知道采取何种幅度系数上报方法导致幅度系数上报失败或不及时，同时也让终端和网络设备在采用哪种幅度系数上报方法上达成一致，提高了基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例中，终端确定目标幅度系数上报方法可以有很多种方法，例如通过网络设备发送的指示信息确定，又例如终端自己确定。本公开实施例中通过以下如图7-图9所示的多个方法对这些方式分别进行说明。需要说明，本公开实施例中如图7-图9所示的多个方案是可以各自独立被实施例的，也可以是其中的任意一个实施例结合其他实施例一起被实施。
在本公开实施例提供的一种幅度系数的上报方法中，基于网络设备发送的第一指示信息，确定目标幅度系数上报方法。如图7所示，图7是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S61中，向终端发送第一指示信息，第一指示信息用于指示第一幅度系数上报 方法，第一幅度系数上报方法为终端的目标幅度系数上报方法。
一示例性实施例中，第一指示信息可以通过RRC信令，MAC CE信令和\或DCI携带。
在本公开实施例中，网络设备向终端发送第一指示信息，第一指示信息用于指示第一幅度系数上报方法，因此终端可以基于第一指示信息将第一幅度系数上报方法确定为终端目标幅度系数上报方法。从而，网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中，第一指示信息还用于指示第一幅度系数上报方法对应的至少一个信道测量资源(CMR)。
其中，至少一个CMR包含至少一个非零功率NZP信道状态信息参考信号CSI-RS资源，每个NZP CSI-RS resource对应不同的TRP。
在一些实施例中，至少一个CMR中每个CMR对应的第一幅度系数上报方法可以相同也可以不同。
一示例性实施例中，若第一指示信息不指示第一幅度系数上报方法对应的CMR时，至少一个CMR中每个CMR对应的第一幅度系数上报方法相同。即该第一指示信息指示的第一幅度系数上报方法适用于终端的多个CMR。
另一示例性实施例中，若第一指示信息指示了第一幅度系数上报方法对应的一个或多个CMR时，终端的至少一个CMR中不同CMR可以被配置不同的第一幅度系数上报方法。即第一指示信息可以针对不同的CMR独立配置第一幅度系数上报方法，而不同CMR对应的第一幅度系数上报方法可以相同或不同。
例如，网络设备可以基于CMR包含的NZP CSI-RS resource对应的TRP的位置确定CMR对应的第一幅度系数上报方法。
更具体的，若CMR包含的NZP CSI-RS resource对应的TRP的位置是接近的，那么第一幅度系数上报方法为幅度系数上报方法1；若CMR包含的NZP CSI-RS resource对应的TRP的位置较远，那么第一幅度系数上报方法可以为不同于幅度系数上报方法1的幅度系数上报方法2。
又例如，网络设备可以基于CMR包含的NZP CSI-RS resource对应的TRP的发送功率确定CMR对应的第一幅度系数上报方法。
更具体的，若CMR包含的NZP CSI-RS resource对应的TRP的发送功率是接近或相同的，那么第一幅度系数上报方法为幅度系数上报方法1；若CMR包含的NZP CSI-RS resource对应的TRP的发送功率差距较大，那么第一幅度系数上报方法可以为不同于幅度系数上报方法1的幅度系数上报方法2。
在本公开实施例中，至少一个CMR中每个CMR对应的第一幅度系数上报方法可以相同也可以不同，从而提高基于多TRP的传输性能。
在本公开实施例提供的一种幅度系数上报方法中，由终端自己确定目标幅度系数上报方法，并告知网络设备目标幅度系数上报方法，如图8所示，图8是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S71中，接收终端发送的第二指示信息，第二指示信息用于指示终端的目标幅度系数上报方法。
在本公开实施例中，由终端自己确定目标幅度系数上报方法，并向网络设备发送第二指示信息，第二指示信息用于指示目标幅度系数上报方法，因此网络设备可以基于第二指示信息确定终端实际采用的幅度系数上报方法，从而网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例中，终端可以基于不同NZP CSI-RS对应的RSRP，RSRQ和SINR中的至少一项确定。
一示例性实施例中，不同NZP CSI-RS之间的RSRP差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中RSRP可以包含Layer1(L1)-RSRP和L3-RSRP中的至少一项。
另一示例性实施例中，不同NZP CSI-RS之间的RSRQ差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中RSRQ可以包含L1-RSRQ和L3-RSRQ中的至少一项。
又一示例性实施例中，不同NZP CSI-RS之间的SINR差距较小，则确定目标幅度系数上报方法为方法1，反之确定目标幅度系数上报方法为方法2。其中SINR可以包含L1-SINR和L3-SINR中的至少一项。
在本公开实施例提供的一种幅度系数上报方法中，网络设备在接收第二指示信息之前，需要使终端使能上报第二指示信息。如图9所示，图9是根据一示例性实施例示出的一种幅度系数的上报方法的流程图，包括以下步骤：
在步骤S81中，向终端发送第三指示信息，第三指示信息用于使能终端上报第二指示信息。
一些实施例中，第二指示信息用于终端告知网络设备自身实际采用的幅度系数上报方法。
在本公开实施例中，网络设备通过向终端发送第三指示信息，由于第三指示信息用于 使能终端上报第二指示信息，当第二指示信息用于指示目标幅度系数上报方法时，网络设备可以基于终端发送的第二指示信息确定终端实际采用的幅度系数上报方法为目标传输方法，从而网络设备和终端在终端实际采用的幅度系数上报方法上可以保持一致，提高基于多TRP的传输性能同时减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中的一些实施例中，第二指示信息承载在CSI中。
本公开实施例通过将第二指示信息承载在CSI中，在CSI上报时能够同时上报第二指示信息，减少信令消耗。
在本公开实施例提供的一种幅度系数上报方法中，CSI包括：第一信息和第二信息。
其中，第一信息对应有固定大小的指示域，第二信息对应指示域的大小基于第一信息确定；第二指示信息承载在第一信息中。
一示例性实施例中，CSI可以包括两个部分，即部分(part)1和part 2。其中，part 1可以对应第一信息，part 2可以对应第二信息。
另一示例性实施例中，第一信息对应的指示域的size可以是固定值。例如是预先设定的，或者是协议规定的默认size等。
另一示例性实施例中，CSI的part 2的size基于part 1中的信息确定。其中，part 2的size表示CSI的part 2所占用的比特(bit)数的大小。如占用8个bit或16个bit等。
例如，CSI的part 2的size基于part 1中的第二指示信息确定。若part 1中的第二指示信息指示终端实际采用的幅度系数上报方法为第一种幅度系数上报方法，则part 2的size就会小一些。反之，若part 1中的第二指示信息指示终端实际采用的幅度系数上报方法为第二种幅度系数上报方法，则part 2的size就会大一些。
另一示例性实施例中，第二指示信息承载在第一信息中。通过第一信息中的幅度系数上报方法指示域指示终端实际采用的幅度系数上报方法。
例如，第一信息中的幅度系数上报方法指示域指示的比特位为0时，第二指示信息指示终端实际采用的幅度系数上报方法为第一种幅度系数上报方法。第一信息中的幅度系数上报方法指示域指示的比特位为1时，第二指示信息指示终端实际采用的幅度系数上报方法为第二种幅度系数上报方法。
在本公开实施例中，通过动态调整CSI不同部分的大小，当第二指示信息指示的终端实际采用的幅度系数上报方法为第一种幅度系数上报方法时，由于第一种幅度系数上报方法将至少一个NZP CSI-RS分为了两组，在终端与多TRP通信时，可以减少CSI上报的信令开销。
在本公开实施例提供的一种幅度系数上报方法中，第一信息还包括以下至少一项：信道状态信息参考信号资源指示(channel state information reference signal resource indicator，CRI)；层rank指示信息；NZP CSI-RS选择信息；宽带信道质量信息(channel quality indicator，CQI)；非零宽带幅度系数个数；非零系数个数指示信息；非零系数位置指示信息；模式指示信息。
一示例性实施例中，第一信息包括非零宽带幅度系数个数。
可以理解，非零宽带幅度系数个数即表示宽带幅度系数值为非零的数量。
一示例性实施例中，第一信息包括非零系数个数指示信息。
可以理解，非零系数个数指示信息可以指示相干系数为非零的系数的数量。
一示例性实施例中，第一信息包括非零系数位置指示信息。
可以理解，非零系数位置指示信息可以指示相干系数为非零的系数的位置。
一示例性实施例中，第一信息包括模式指示。
例如，模式指示可以用于指示CSI反馈模式、码本模式等。CSI反馈模式可以包括模式1和模式2，模式1为基于单个TRP的反馈，模式2为基于多个TRP的反馈。当然，CSI反馈模式也可以包含其它模式，本公开不作限制。码本模式可以包括码本结构1和码本结构2，码本结构1为针对所有NZP CSI-RS，反馈一份频域基向量(frequency domain basis，FD basis)信息；码本结构2为针对每个NZP CSI-RS，分别反馈一份频域基向量信息。码本模式也可以包含其它模式，本公开不作限制。
在本公开实施例提供的一种幅度系数上报方法中，第二信息包括预编码矩阵指示(precoding matrix indicator，PMI)信息。
其中，PMI信息至少包括以下至少一项：空域基向量参数信息；频域基向量参数信息；非零系数位置指示信息；相位系数信息；幅度系数信息。
在本公开实施例提供的一种幅度系数上报方法中，只有在终端接收物理下行共享信道的方法为目标传输方法时，终端才需要确定目标幅度系数上报方法，因此，网络设备需要确定终端接收物理下行共享信道的方法为目标传输方法。
在本公开实施例中，目标传输方法可以称为相干联合传输(Coherent joint transmission，CJT)方法。除本公开实施例外，以下所有实施例中出现的目标传输方法均可被称为CJT方法。
在本公开实施例提供的一种幅度系数上报方法中，目标传输方法满足以下至少一项：
A.至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
B.终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
C.终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
D.终端针对每个CMR分别上报频域基向量参数信息；
E.每个NZP CSI-RS资源对应一个TRP；
F.PDSCH传输对应的TCI状态的数量为至少1个。
其中，目标传输方法可以满足上述A-F中任意一项特征，或任意两项特征，或任意三项特征等，本公开实施例对A-F的组合不做限定。
一示例性实施例中，目标传输方法满足终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息。
例如，从各个NZP CSI-RS资源的天线端口总数N1*N2中分别选出指定数量(L)的波束来上报空间域基向量。其中，N1为第一维度天线端口数，N2为第二维度天线端口数。针对不同NZP CSI-RS资源，L值可以相同或不同。
终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息。
例如，分别从N3个频域基向量中针对各个NZP CSI-RS资源分别选出M个频域基向量。其中，N3表示：信道质量指示子带(Channel Quality Indication subband，CQI-subband)数量与每个CQI-subband包含的预编码码本索引子带(Precoding Matrix Index subband，PMI-subband)的数量的乘积。其中，针对不同NZP CSI-RS资源，M值可以相同或不同。
一示例性实施例中，目标传输方法满足终端针对每个CMR分别上报频域基向量参数信息。
例如，针对一个CMR，即使该CMR包含了多个NZP CSI-RS资源，终端也只需要针对该CMR中所有的NZP CSI-RS资源，从N3个频域基向量中选出M个相同的频域基向量。不需要针对每个NZP CSI-RS资源，分别选出M个频域基向量。
在本公开实施例中，可以通过判断当前传输方法是否满足目标传输方法具有的特征，以此确定当前传输方法是否属于目标传输方法，进一步确定终端是否需要确定实际采用的幅度系数上报方法。
在本公开实施例提供的一种幅度系数上报方法中，目标幅度系数上报方法为终端支持目标传输方法时必须支持的幅度系数上报方法；和/或目标幅度系数上报方法为终端可选支持的幅度系数上报方法。
一示例性实施例中，终端支持目标传输方法时必须支持的幅度系数传输方法为幅度系数上报方法1，终端可选支持的幅度系数上报方法为幅度系数上报方法2。终端需要向网络设备上报能力信息，通过能力信息告知网络设备自己支持幅度系数上报方法2。则终端实际采用的目标幅度系数上报方法可以为幅度系数上报方法1或幅度系数上报方法2。
另一示例性实施例中，终端支持目标传输方法时必须支持的幅度系数传输方法为幅度系数上报方法2，终端可选支持的幅度系数上报方法为幅度系数上报方法1。终端需要向网络设备上报能力信息，通过能力信息告知网络设备自己支持幅度系数上报方法1。则终端实际采用的目标幅度系数上报方法可以为幅度系数上报方法1或幅度系数上报方法2。在本公开实施例提供的一种幅度系数的上报方法中，目标幅度系数上报方法包括以下至少一种：
A.上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
B.上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，2组幅度系数对应不同的极化方向，其中，N为正整数。
一示例性实施例中，响应于目标幅度系数上报包括方法A。这种情况下，最强系数指示(strongest coefficient indicator，SCI)所在极化方向上的最强幅度系数默认为1，终端无需上报，只需上报该极化方向上其他位置上的幅度系数即可，其它位置上的幅度系数为与1的差分值；终端独立上报另一极化方向上的参考幅度，并上报该极化方向上其它位置上的幅度系数，其他位置上的幅度系数为与该极化方向上参考幅度的差分值。
另一示例性实施例中，响应于目标幅度系数上报包括方法B。这种情况下，SCI所在组内的最强幅度系数默认为1，终端无需上报，终端只需上报该组内其他位置上的幅度系数即可，其它位置上的幅度系数为与1的差分值；针对其他2N-1组，终端针对每组上报一个参考幅度，并上报该组内其它位置上的幅度系数，其他位置上的幅度系数为与该极化方向上参考幅度的差分值。
在本公开实施例中，与方法A相比，方法B需要额外上报2N-2个参考幅度，所以在N大于1时方法B的信令开销相对大些，即方法B对应的CSI第二信息的size要大些。
在本公开实施例中，当目标幅度系数上报方法为方法A时，由于终端只需上报两组幅度系数，因此在终端通过CSI上报目标幅度系数时，能够减少CSI信令消耗。
需要说明的是，本领域内技术人员可以理解，本公开实施例上述涉及的各种实施方式/实施例中可以配合前述的实施例使用，也可以是独立使用。无论是单独使用还是配合前述的实施例一起使用，其实现原理类似。本公开实施中，部分实施例中是以一起使用的实施方式进行说明的。当然，本领域内技术人员可以理解，这样的举例说明并非对本公开实施例的限定。
基于相同的构思，本公开实施例还提供一种幅度系数的上报装置。
可以理解的是，本公开实施例提供的幅度系数的上报装置为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本公开实施例中所公开的各示例的单元及算法步骤，本公开实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本公开实施例的技术方案的范围。
图10是根据一示例性实施例示出的一种幅度系数的上报装置框图。参照图10，该装置包括确定模块101和处理模块102。其中，幅度系数的上报装置100应用于终端中。
确定模块101，用于响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；处理模块，用于基于目标幅度系数上报方法，向网络设备上报幅度系数。
一种实施方式中，幅度系数的上报装置100还包括接收模块103。接收模块103，用于接收网络设备发送的第一指示信息，第一指示信息用于指示第一幅度系数上报方法；
确定模块101，用于基于第一指示信息，确定第一幅度系数上报方法为目标幅度系数上报方法。
一种实施方式中，第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个CMR。
一种实施方式中，确定模块101，用于确定目标幅度系数上报方法，向网络设备发送第二指示信息，第二指示信息用于指示目标幅度系数上报方法。
一种实施方式中，接收模块103，用于接收网络设备的第三指示信息，第三指示信息用于使能终端上报第二指示信息。
一种实施方式中，第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，第一信息对应有固定大小的指示域，第二信息对应指示域的大小基于所述第一信息确定；第二指示信息承载在第一信息中。
一种实施方式中，第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
NZP CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，第二信息包括预编码矩阵指示PMI信息；
PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，确定模块101，还用于确定终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
一种实施方式中，目标传输方法满足以下至少一项：
至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
终端针对每个CMR分别上报频域基向量参数信息；
每个NZP CSI-RS资源对应一个TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，目标幅度系数上报方法为终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或目标幅度系数上报方法为终端可选支持的幅度系数上报方法。
一种实施方式中，目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图11是根据一示例性实施例示出的一种幅度系数的上报装置框图。参照图11，该装置包括接收模块201。其中，幅度系数的上报装置200应用于网络设备中。
接收模块201，用于接收终端基于目标幅度系数上报方法上报的幅度系数。
一种实施方式中，幅度系数的上报装置200还包括发送模块202，发送模块202，用 于向终端发送第一指示信息，第一指示信息用于指示第一幅度系数上报方法，第一幅度系数上报方法为终端的目标幅度系数上报方法。
一种实施方式中，第一指示信息还用于指示第一幅度系数上报方法对应的至少一个CMR。
一种实施方式中，接收模块201，用于接收终端发送的第二指示信息，第二指示信息用于指示终端的目标幅度系数上报方法。
一种实施方式中，发送模块202，用于向终端发送第三指示信息，第三指示信息用于使能终端上报第二指示信息。
一种实施方式中，第二指示信息承载在信道状态信息CSI中。
一种实施方式中，CSI包括：第一信息和第二信息，第一信息对应有固定大小的指示域，第二信息对应指示域的大小基于所述第一信息确定；第二指示信息承载在所述第一信息中。
一种实施方式中，第一信息还包括以下至少一项信息：
信道状态信息参考信号资源指示CRI；
层rank指示信息；
NZP CSI-RS选择信息；
宽带信道质量信息CQI；
非零宽带幅度系数个数；
非零系数个数指示信息；
非零系数位置指示信息；
模式指示信息。
一种实施方式中，第二信息包括预编码矩阵指示PMI信息；
所述PMI信息至少包括以下至少一项：
空域基向量参数信息；
频域基向量参数信息；
非零系数位置指示信息；
相位系数信息；
幅度系数信息。
一种实施方式中，终端接收物理下行共享信道的方法为目标传输方法。
一种实施方式中，目标传输方法满足以下至少一项：
至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
终端针对每个CMR分别上报频域基向量参数信息；
每个NZP CSI-RS资源对应一个TRP；
PDSCH传输对应的TCI状态的数量为至少1个。
一种实施方式中，目标幅度系数上报方法为终端支持目标传输方法时必须支持的幅度系数上报方法；和/或目标幅度系数上报方法为终端可选支持的幅度系数上报方法。
一种实施方式中，目标幅度系数上报方法包括以下至少一种：
上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，2组幅度系数对应不同的极化方向，其中，N为正整数。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
图12是根据一示例性实施例示出的一种幅度系数的上报装置的框图。例如，装置300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图12，装置300可以包括以下一个或多个组件：处理组件302，存储器304，电力组件306，多媒体组件308，音频组件310，输入/输出(I/O)接口312，传感器组件314，以及通信组件316。
处理组件302通常控制装置300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件302可以包括一个或多个处理器320来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件302可以包括一个或多个模块，便于处理组件302和其他组件之间的交互。例如，处理组件302可以包括多媒体模块，以方便多媒体组件308和处理组件302之间的交互。
存储器304被配置为存储各种类型的数据以支持在装置300的操作。这些数据的示例包括用于在装置300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)， 磁存储器，快闪存储器，磁盘或光盘。
电力组件306为装置300的各种组件提供电力。电力组件306可以包括电源管理系统，一个或多个电源，及其他与为装置300生成、管理和分配电力相关联的组件。
多媒体组件308包括在所述装置300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件308包括一个前置摄像头和/或后置摄像头。当装置300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件310被配置为输出和/或输入音频信号。例如，音频组件310包括一个麦克风(MIC)，当装置300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器304或经由通信组件316发送。在一些实施例中，音频组件310还包括一个扬声器，用于输出音频信号。
I/O接口312为处理组件302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件314包括一个或多个传感器，用于为装置300提供各个方面的状态评估。例如，传感器组件314可以检测到装置300的打开/关闭状态，组件的相对定位，例如所述组件为装置300的显示器和小键盘，传感器组件314还可以检测装置300或装置300一个组件的位置改变，用户与装置300接触的存在或不存在，装置300方位或加速/减速和装置300的温度变化。传感器组件314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件314还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件316被配置为便于装置300和其他设备之间有线或无线方式的通信。装置300可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术， 超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器304，上述指令可由装置300的处理器320执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
图13是根据一示例性实施例示出的一种幅度系数的上报装置的框图。例如，装置400可以被提供为一网络设备。参照图13，装置400包括处理组件422，其进一步包括一个或多个处理器，以及由存储器432所代表的存储器资源，用于存储可由处理组件422的执行的指令，例如应用程序。存储器432中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件422被配置为执行指令，以执行上述方法。
装置400还可以包括一个电源组件426被配置为执行装置400的电源管理，一个有线或无线网络接口450被配置为将装置400连接到网络，和一个输入输出(I/O)接口458。装置400可以操作基于存储在存储器432的操作系统，例如Windows ServerTM，Mac OS XTM，UnixTM,LinuxTM，FreeBSDTM或类似。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器432，上述指令可由装置400的处理组件422执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
进一步可以理解的是，本公开中“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。
进一步可以理解的是，本公开中涉及到的“响应于”“如果”等词语的含义取决于语境以及实际使用的场景，如在此所使用的词语“响应于”可以被解释成为“在……时”或“当……时”或“如果”或“若”。
进一步可以理解的是，术语“第一”、“第二”等用于描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开，并不表示特定的顺序或者 重要程度。实际上，“第一”、“第二”等表述完全可以互换使用。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。
进一步可以理解的是，本公开实施例中尽管在附图中以特定的顺序描述操作，但是不应将其理解为要求按照所示的特定顺序或是串行顺序来执行这些操作，或是要求执行全部所示的操作以得到期望的结果。在特定环境中，多任务和并行处理可能是有利的。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利范围来限制。

Claims (33)

  1. 一种幅度系数的上报方法，其特征在于，应用于终端，所述方法包括：
    响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；
    基于所述目标幅度系数上报方法，向网络设备上报幅度系数。
  2. 根据权利要求1所述的方法，其特征在于，所述确定目标幅度系数上报方法，包括：
    接收网络设备发送的第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法；
    基于所述第一指示信息，确定所述第一幅度系数上报方法为所述目标幅度系数上报方法。
  3. 根据权利要求2所述的方法，其特征在于，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
  4. 根据权利要求1所述的方法，其特征在于，所述确定目标幅度系数上报方法，包括：
    确定所述目标幅度系数上报方法；
    向网络设备发送第二指示信息，所述第二指示信息用于指示所述目标幅度系数上报方法。
  5. 根据权利要求4所述的方法，其特征在于，所述方法还包括：
    接收网络设备的第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第二指示信息承载在信道状态信息CSI中。
  7. 根据权利要求4至6中任意一项所述的方法，其特征在于，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；
    所述第二指示信息承载在所述第一信息中。
  8. 根据权利要求7所述的方法，其特征在于，所述第一信息还包括以下至少一项信息：
    信道状态信息参考信号资源指示CRI；
    层rank指示信息；
    非零功率NZP信道状态信息参考信号CSI-RS选择信息；
    宽带信道质量信息CQI；
    非零宽带幅度系数个数；
    非零系数个数指示信息；
    非零系数位置指示信息；
    模式指示信息。
  9. 根据权利要求7所述的方法，其特征在于，所述第二信息包括预编码矩阵指示PMI信息；
    所述PMI信息至少包括以下至少一项：
    空域基向量参数信息；
    频域基向量参数信息；
    非零系数位置指示信息；
    相位系数信息；
    幅度系数信息。
  10. 根据权利要求1至9中任意一项所述的方法，其特征在于，所述方法还包括：
    确定所述终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
  11. 根据权利要求10所述的方法，其特征在于，所述目标传输方法满足以下至少一项：
    所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
    所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
    所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
    所述终端针对每个CMR分别上报频域基向量参数信息；
    所述每个NZP CSI-RS资源对应一个发送接收点TRP；
    PDSCH传输对应的传输配置指示TCI状态的数量为至少1个。
  12. 根据权利要求10或11所述的方法，其特征在于，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或
    所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
  13. 根据权利要求1-12任一所述的方法，其特征在于，所述目标幅度系数上报方法包括以下至少一种：
    上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
    上报2N组幅度系数，其中，N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS 对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中，N为正整数。
  14. 一种幅度系数的上报方法，其特征在于，应用于网络设备，所述方法包括：
    接收终端基于目标幅度系数上报方法上报的幅度系数。
  15. 根据权利要求14所述的方法，其特征在于，
    向所述终端发送第一指示信息，所述第一指示信息用于指示第一幅度系数上报方法，所述第一幅度系数上报方法为所述终端的目标幅度系数上报方法。
  16. 根据权利要求15所述的方法，其特征在于，所述第一指示信息还用于指示所述第一幅度系数上报方法对应的至少一个信道测量资源CMR。
  17. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    接收所述终端发送的第二指示信息，所述第二指示信息用于指示所述终端的目标幅度系数上报方法。
  18. 根据权利要求17所述的方法，其特征在于，所述方法还包括：
    向所述终端发送第三指示信息，所述第三指示信息用于使能所述终端上报第二指示信息。
  19. 根据权利要求17或18所述的方法，其特征在于，所述第二指示信息承载在信道状态信息CSI中。
  20. 根据权利要求17至19中任意一项所述的方法，其特征在于，CSI包括：第一信息和第二信息，所述第一信息对应有固定大小的指示域，所述第二信息对应指示域的大小基于所述第一信息确定；
    所述第二指示信息承载在所述第一信息中。
  21. 根据权利要求20所述的方法，其特征在于，所述第一信息还包括以下至少一项信息：
    信道状态信息参考信号资源指示CRI；
    层rank指示信息；
    非零功率NZP信道状态信息参考信号CSI-RS选择信息；
    宽带信道质量信息CQI；
    非零宽带幅度系数个数；
    非零系数个数指示信息；
    非零系数位置指示信息；
    模式指示信息。
  22. 根据权利要求21所述的方法，其特征在于，所述第二信息包括预编码矩阵指示 PMI信息；
    所述PMI信息至少包括以下至少一项：
    空域基向量参数信息；
    频域基向量参数信息；
    非零系数位置指示信息；
    相位系数信息；
    幅度系数信息。
  23. 根据权利要求14至22中任意一项所述的方法，其特征在于，所述终端进行物理下行共享信道PDSCH的传输方法为目标传输方法。
  24. 根据权利要求23所述的方法，其特征在于，所述目标传输方法满足以下至少一项：
    所述至少一个CMR中每个CMR包括至少一个NZP CSI-RS资源；
    所述终端针对每个NZP CSI-RS资源分别上报空域基向量参数信息；
    所述终端针对每个NZP CSI-RS资源分别上报频域基向量参数信息；
    所述终端针对每个CMR分别上报频域基向量参数信息；
    所述每个NZP CSI-RS资源对应一个发送接收点TRP；
    PDSCH传输对应的TCI状态的数量为至少1个。
  25. 根据权利要求23或24所述的方法，其特征在于，所述目标幅度系数上报方法为所述终端支持所述目标传输方法时必须支持的幅度系数上报方法；和/或
    所述目标幅度系数上报方法为所述终端可选支持的幅度系数上报方法。
  26. 根据权利要求14至25中任意一项所述的方法，其特征在于，所述目标幅度系数上报方法包括以下至少一种：
    上报两组幅度系数，其中第一组幅度系数包含第一极化方向上的幅度系数，第二组幅度系数包含第二极化方向上的幅度系数，且第一极化方向对应最强幅度系数所在的极化方向；
    上报2N组幅度系数，其中N为一个CMR中包含的NZP CSI-RS的数量，每个NZP CSI-RS对应2组幅度系数，所述2组幅度系数对应不同的极化方向，其中N为正整数。
  27. 一种幅度系数的上报装置，其特征在于，应用于终端，所述装置包括：
    确定模块，用于响应于支持至少两种幅度系数上报方法，确定目标幅度系数上报方法；
    处理模块，用于基于所述目标幅度系数上报方法，向网络设备上报幅度系数。
  28. 一种幅度系数的上报装置，其特征在于，应用于网络设备，所述装置包括：
    接收模块，用于接收终端基于目标幅度系数上报方法上报的幅度系数。
  29. 一种通信装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求1至13中任意一项所述的方法。
  30. 一种通信装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：执行权利要求14至26中任意一项所述的方法。
  31. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由终端的处理器执行时，使得终端能够执行权利要求1至13中任意一项所述的方法。
  32. 一种存储介质，其特征在于，所述存储介质中存储有指令，当所述存储介质中的指令由网络设备的处理器执行时，使得网络设备能够执行权利要求14至26中任意一项所述的方法。
  33. 一种通信系统，包括终端和网络设备，其中，
    所述终端用于执行如权利要求1至13中任意一项所述的方法；
    所述网络设备用于执行如权利要求14至26中任意一项所述的方法。
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