WO2020227873A1 - Procédé de transmission d'informations d'état de canal, dispositif, et support de stockage - Google Patents

Procédé de transmission d'informations d'état de canal, dispositif, et support de stockage Download PDF

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Publication number
WO2020227873A1
WO2020227873A1 PCT/CN2019/086509 CN2019086509W WO2020227873A1 WO 2020227873 A1 WO2020227873 A1 WO 2020227873A1 CN 2019086509 W CN2019086509 W CN 2019086509W WO 2020227873 A1 WO2020227873 A1 WO 2020227873A1
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WIPO (PCT)
Prior art keywords
sci
bit width
terminal device
value
basis vectors
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PCT/CN2019/086509
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English (en)
Chinese (zh)
Inventor
黄莹沛
陈文洪
史志华
方昀
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Oppo广东移动通信有限公司
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.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2019/086509 priority Critical patent/WO2020227873A1/fr
Priority to CN201980002811.6A priority patent/CN110754054B/zh
Publication of WO2020227873A1 publication Critical patent/WO2020227873A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI

Definitions

  • the present invention relates to the field of wireless communication technology, and in particular to a method, equipment and storage medium for transmitting channel state information.
  • CSI channel state information
  • SCI strongest coefficient indicator
  • embodiments of the present invention provide a channel state information transmission method, device, and storage medium.
  • the terminal device can flexibly determine the bit width of the SCI based on different parameters, and reduce the terminal device sending CSI to the network device. Feedback overhead.
  • an embodiment of the present invention provides a channel state information transmission method, including: a terminal device determines the bit width of the SCI according to the configuration parameters indicated by the network device or the report information of the terminal device; and according to the bit width of the SCI Determine the SCI; send channel state information carrying the SCI.
  • an embodiment of the present invention provides a channel state information transmission method, including: a network device sends configuration parameters, the configuration parameters are used by the terminal device to determine the bit width of the strongest coefficient indicating SCI; receiving the channel state carrying the SCI information.
  • an embodiment of the present invention provides a terminal device, the terminal device includes: a processing unit configured to determine the bit width of the SCI according to the configuration parameter indicated by the network device or the report information of the terminal device; The bit width of to determine the SCI;
  • the first sending unit is configured to send CSI carrying the SCI.
  • an embodiment of the present invention provides a network device, the network device includes: a second sending unit configured to send configuration parameters, where the configuration parameters are used by the terminal device to determine the bit width of the SCI;
  • the receiving unit is configured to receive channel state information carrying the SCI.
  • an embodiment of the present invention provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above-mentioned terminal when the computer program is running. The steps of the channel state information transmission method executed by the device.
  • an embodiment of the present invention provides a network device, including a processor and a memory for storing a computer program that can run on the processor, wherein the processor is used to execute the above network when the computer program is running. The steps of the channel state information transmission method executed by the device.
  • an embodiment of the present invention provides a storage medium storing an executable program, and when the executable program is executed by a processor, it implements the channel state information transmission method executed by the terminal device.
  • an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, it implements the channel state information transmission method executed by the network device.
  • the channel state information transmission method provided by the embodiment of the present invention includes: the terminal device determines the bit width of the SCI according to the configuration parameters indicated by the network device or the report information of the terminal device; determines the SCI according to the bit width of the SCI, and sends Channel state information of the SCI.
  • the terminal device can determine the bit width of the SCI according to the different configuration parameter types indicated by the network device, the different parameter values of the same type of non-configuration parameters, or the different report information of the terminal device; and all scenarios in related technologies are used
  • the embodiment of the present invention can determine the bit width of the SCI according to different scenarios, so that when the terminal device determines the CSI according to the bit width of the SCI, the size of the determined CSI can be guaranteed.
  • Figure 1 is a schematic diagram of the SD basis of the present invention.
  • Fig. 2 is a schematic diagram of selecting FD basis in DFT vector according to the present invention.
  • FIG. 3 is a schematic diagram of the position of the strongest non-zero coefficient according to an embodiment of the present invention.
  • FIG. 4 is another schematic diagram of the position of the strongest non-zero coefficient according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of an optional processing flow of a channel state information transmission method provided by an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an optional structure of a terminal device according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of an optional composition structure of a network device according to an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of the hardware composition structure of an electronic device according to an embodiment of the present invention.
  • a terminal device reports a Type II codebook for characterizing CSI to a network device.
  • Type II codebook Type II codebook is independently encoded in the frequency domain (that is, each subband); due to the high spatial quantization accuracy of Type II codebook, terminal equipment needs to feed back a large amount of channel information to network equipment, occupying a lot of network resources and increasing Network overhead.
  • TypeII codebook is expressed by the following formula:
  • W 1 represents 2L spatial beams (beam), Represents M discrete Fourier Transform (DFT) basis vectors, Represents the weighting coefficient of arbitrary space beam and frequency domain DFT vector pairs.
  • a schematic view of a space-based vector (SD basis) of the two polarization directions W 1 comprises, as shown in FIG. 1, SD basis even a direction of polarization and respectively pol0 pol1.
  • terminal equipment reports The method includes: the number of SD basis configured by the network device, and the number of SD basis is represented by L.
  • the number of FD basis configured by the network device is used, and the number of FD basis is represented by M, where M is a parameter related to the frequency domain bandwidth reported by the terminal device to the network device.
  • the network device adopts the maximum number of non-zero coefficients K 0 configured by the network device to restrict The maximum number of reported elements. Or, determined by bitmap and/or instruction information The number of non-zero elements in, and/or non-zero elements in In the location. Or, determined by one or more sets of parameters including amplitude and phase The quantization accuracy in the medium; for the two polarization directions, independent differences are used, and the position of the strongest coefficient is indicated by SCI.
  • M is equal to The number of columns
  • M FD basis is selected by the terminal equipment from the N3 column DFT vector
  • the schematic diagram of selecting the FD basis in the DFT vector as shown in Figure 2
  • the three columns of 9 are used as the FD basis.
  • the value of 2L is equal to The number of rows
  • L SD basis is selected by the terminal device from N1N20102 DFT vectors.
  • the SCI indicates the strongest non-zero coefficient
  • the bit width of SCI is At this time, it is necessary to determine the position of the non-zero coefficient by cyclic shift.
  • the bit width of SCI is When, based on Figure 3, select the 3rd, 4th, 5th, 6th, and 7th columns of the M DFT vectors to cyclically shift to the 0th, 4th, 5th, 6th, and 7th columns in another schematic diagram of the position of the strongest non-zero coefficient as shown in Figure 4 Columns 1, 2, 6, and 7, and use the 2 bits in column 0 to indicate the number of SCI rows; the position filled with dots in Figure 4 is the position of the strongest non-zero coefficient.
  • the SCI bit width adopts the first scheme compared with the second scheme.
  • the overhead of the CSI fed back by the terminal device to the network device is small; however, in other scenarios, the bit width of the SCI adopts the first solution compared to the second solution, and the overhead of the CSI fed back by the terminal device to the network device is large.
  • the channel state information transmission method in the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, code Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), LTE system, LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system Or 5G system, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE system LTE Frequency Division Duplex (Frequency Division Duplex, FDD) system
  • LTE Time Division Duplex (TDD) LTE Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 5.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • LTE Long Term Evolutional Node B
  • eNB evolved base station
  • CRAN Cloud Radio Access Network
  • the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • PSTN Public Switched Telephone Networks
  • DSL Digital Subscriber Line
  • WLAN wireless local area networks
  • IoT Internet of Things
  • a terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” or a “mobile terminal”.
  • mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • PCS Personal Communications System
  • GPS Global Positioning System
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
  • the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.
  • NR New Radio
  • Figure 5 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 with a communication function and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
  • An optional processing procedure of the channel state information transmission processing method provided by the embodiment of the present invention, as shown in FIG. 6, includes the following steps:
  • Step S201 The terminal device determines the bit width of the SCI according to the configuration parameter indicated by the network device or the report information of the terminal device.
  • the network device sends configuration parameters to the terminal device through high-level signaling; optionally, the high-level signaling is a radio resource control (Radio Resource Control, RRC) message.
  • RRC Radio Resource Control
  • the configuration parameters are the number of spatial basis vectors L and the number of largest non-zero coefficients K 0 ,
  • bit width of the SCI is
  • bit width of the SCI is
  • bit width of the SCI is
  • bit width of the SCI is
  • the bit width of the SCI is Otherwise, the bit width of the SCI is Among them, M l is the number of frequency domain basis vectors of each layer.
  • the bit width of the SCI is Otherwise, the bit width of the SCI is Among them, M l is the number of frequency domain basis vectors of each layer.
  • the bit width of the SCI is Otherwise, the bit width of the SCI is Among them, M l is the number of frequency domain basis vectors of each layer.
  • the bit width of the SCI is Otherwise, the bit width of the SCI is Among them, M l is the number of frequency domain basis vectors of each layer.
  • the bit width of the SCI is or If the first configuration parameter is equal to the second value, the bit width of the SCI is
  • the first value and the second value are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • the first configuration parameter is the frequency domain basis vector granularity R; correspondingly, the first value is 1, and the second value is 2.
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the bit width of the SCI is or Otherwise, the bit width of the SCI is Among them, the third value is configured by the network device to the terminal device through high-level signaling, or pre-assigned by the protocol.
  • the configuration parameter is the number M of space basis vectors selected by the terminal device
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the bit width of the SCI is or Otherwise, the bit width of the SCI is Among them, the fourth value is configured by the network device to the terminal device through high-level signaling, or pre-assigned by the protocol.
  • the bit width of the SCI is or Otherwise, the bit width of the SCI is
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • bit width of the SCI is or If p belongs to the second parameter set, the bit width of the SCI is
  • bit width of the SCI is or If p is equal to the seventh value, the bit width of the SCI is
  • the first parameter set, the second parameter set, the sixth value, and the seventh value are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • bit width of the SCI is or If ⁇ belongs to the fourth parameter set, the bit width of the SCI is
  • bit width of the SCI is or If ⁇ is equal to the ninth value, the bit width of the SCI is
  • ⁇ is used to determine the maximum number of non-zero coefficients.
  • the third parameter set, the fourth parameter set, the eighth value, and the ninth value are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • the configuration parameter is the number of subbands Nsb for channel state information reporting
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the tenth value is configured by the network device to the terminal device through high-level signaling, or pre-assigned by the protocol.
  • the bit width of the SCI is or If RI belongs to the sixth parameter set, the bit width of the SCI is
  • the fifth parameter set and the sixth parameter set are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • the reported information of the terminal device is the number K nz,tot of the sum of non-zero coefficients of all layers
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the tenth value and the eleventh value are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • bit width of the SCI is or If L belongs to the eighth parameter set, the bit width of the SCI is
  • bit width of the SCI is or If L is equal to the thirteenth value, the bit width of the SCI is
  • the twelfth value, the thirteenth value, the seventh parameter set, and the eighth parameter set are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the fourteenth value is configured by the network device to the terminal device through high-level signaling, or pre-arranged by a protocol.
  • the method further includes: the terminal device reporting the bit width of the SCI to a network device.
  • bit width of the SCI is indicated by the first indication information
  • the first indication information is the fifteenth value, it indicates that the bit width of the SCI is or When the first indication information is the sixteenth value, it indicates that the bit width of the SCI is
  • the bit width of the SCI is or If the first indication information belongs to the tenth parameter set, the bit width of the SCI is
  • the size of the first indication information is the seventeenth value, it indicates that the bit width of the SCI is or If the size of the first indication information is the eighteenth value, it indicates that the bit width of the SCI is For example, if the size of the first indication information is 1 bit, it indicates that the bit width of the SCI is or If the size of the first indication information is 2 bits, it indicates that the bit width of the SCI is
  • the fifteenth value, the sixteenth value, the ninth parameter set, and the tenth parameter set are configured by the network device to the terminal device through high-level signaling, or agreed in advance by a protocol.
  • the first indication information is carried in channel state information.
  • Step S202 The terminal device determines the SCI according to the bit width.
  • the terminal device determines the SCI according to the position of the strongest coefficient and the bit width of the SCI.
  • Step S203 The terminal device sends the channel state information carrying the SCI.
  • the terminal device sends channel state information to the network device, and the channel state information carries the SCI.
  • an embodiment of the present invention provides a terminal device.
  • the composition structure of the terminal device 300 as shown in FIG. 7, includes:
  • the processing unit 301 is configured to determine the bit width of the SCI according to the configuration parameters indicated by the network device or the report information of the terminal device; and determine the SCI according to the bit width of the SCI;
  • the first sending unit 302 is configured to send the channel state information carrying the SCI.
  • the processing unit 301 is configured to determine the SCI value if 2L ⁇ K 0 when the configuration parameters are the number of spatial basis vectors L and the number of maximum non-zero coefficients K 0 Bit width is Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine the value of the SCI if the configuration parameter is the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient, if 2L ⁇ K 0 Bit width is Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine the SCI value if 2L ⁇ 2K 0 when the configuration parameters are the number of spatial basis vectors L and the number of maximum non-zero coefficients K 0 Bit width is Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine the SCI value if the configuration parameter is the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient, if 2L ⁇ 2K 0 Bit width is Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to, when the configuration parameters are the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient,
  • M l is the number of frequency domain basis vectors of each layer.
  • the processing unit 301 is configured to, when the configuration parameters are the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient,
  • M l is the number of frequency domain basis vectors of each layer.
  • the processing unit 301 is configured to, when the configuration parameters are the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient, if 2L ⁇ min(2K 0 , 2LM l ) , It is determined that the bit width of the SCI is Otherwise, determine the bit width of the SCI as Among them, M l is the number of frequency domain basis vectors of each layer.
  • the processing unit is configured to, when the configuration parameters are the number L of spatial basis vectors and the number K 0 of the largest non-zero coefficient, if 2L ⁇ min(2K 0 , 2LM l ), Determine the bit width of the SCI as Otherwise, determine the bit width of the SCI as Among them, M l is the number of frequency domain basis vectors of each layer.
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is a first configuration parameter, and if the first configuration parameter is equal to a first value or If the first configuration parameter is equal to the second value, it is determined that the bit width of the SCI is
  • the first configuration parameter is the frequency domain basis vector granularity R.
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the total number of frequency-domain basis vectors N 3 , if N 3 is less than a third value or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine the bit position of the SCI if the configuration parameter is the total number N 3 of frequency domain basis vectors, if N 3 is less than or equal to a third value Wide as or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the number M of spatial basis vectors selected by the terminal device, if M is less than the fourth value or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine the bit of the SCI if the configuration parameter is the number M of frequency domain basis vectors selected by the terminal device, if M is less than or equal to the fourth value Bit width or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to, when the configuration parameter is the number M l of frequency domain basis vectors of each layer selected by the terminal device, if Less than the fifth value, it is determined that the bit width of the SCI is or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to, when the configuration parameter is the number M l of frequency domain basis vectors of each layer selected by the terminal device, if Less than or equal to the fifth value, it is determined that the bit width of the SCI is or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the frequency domain basis vector number factor p, if p belongs to the first parameter set or If p belongs to the second parameter set, determine the bit width of the SCI
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the frequency domain basis vector number factor p, if p is equal to the sixth value or If p is equal to the seventh value, it is determined that the bit width of the SCI is
  • the processing unit 301 is configured to determine that the bit width of the SCI is if ⁇ belongs to the third parameter set when the configuration parameter is the maximum non-zero coefficient factor ⁇ or If ⁇ belongs to the fourth parameter set, determine the bit width of the SCI
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the maximum non-zero coefficient factor ⁇ , if ⁇ is equal to the eighth value or If ⁇ is equal to the ninth value, determine the bit width of the SCI
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the number of subbands for reporting channel state information Nsb, and if Nsb is less than the tenth value or Otherwise, the bit width of the SCI is
  • the processing unit 301 is configured to determine that the bit width of the SCI is when the configuration parameter is the number of CSI reporting subbands Nsb, if Nsb is less than or equal to the tenth value or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine that the bit width of the SCI is the rank RI if the RI belongs to the fifth parameter set when the reported information of the terminal device is or If RI belongs to the sixth parameter set, determine the bit width of the SCI
  • the processing unit 301 is configured to, when the reported information of the terminal device is the number K nz,tot of the sum of non-zero coefficients of all layers, if K nz,tot is less than the eleventh Value, determine the bit width of the SCI as or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to, when the reported information of the terminal device is the number K nz,tot of the sum of non-zero coefficients of all layers, if K nz,tot is less than or equal to the first Eleven value to determine the bit width of the SCI as or Otherwise, determine the bit width of the SCI as
  • the processing unit 301 is configured to determine that if the configuration parameter is the number of spatial basis vectors L, if L belongs to the seventh parameter set, the bit width of the SCI is or If L belongs to the eighth parameter set, determine the bit width of the SCI as
  • the processing unit 301 is configured to, if the configuration parameter is the number L of spatial basis vectors, if L is equal to the twelfth value, the bit width of the SCI is or If L is equal to the thirteenth value, the bit width of the SCI is
  • the processing unit 301 is configured to, when the configuration parameter is the maximum number of non-zero coefficients K 0 , if K 0 is less than the fourteenth value, the bit width of the SCI is or Otherwise, the bit width of the SCI is
  • the processing unit 301 is configured to, if the configuration parameter is the maximum number of non-zero coefficients K 0 , if K 0 is less than or equal to the fourteenth value, the bit width of the SCI for or Otherwise, the bit width of the SCI is
  • the first sending unit 302 is further configured to report the bit width of the SCI to a network device.
  • the bit width of the SCI is indicated by the first indication information
  • the first indication information is the fifteenth value, it indicates that the bit width of the SCI is or When the first indication information is the sixteenth value, it indicates that the bit width of the SCI is
  • the bit width of the SCI is indicated by the first indication information
  • the bit width of the SCI is or If the first indication information belongs to the tenth parameter set, the bit width of the SCI is
  • the bit width of the SCI is indicated by the first indication information
  • the size of the first indication information is the seventeenth value, it indicates that the bit width of the SCI is or
  • the size of the first indication information is the eighteenth value, it indicates that the bit width of the SCI is the eighteenth value.
  • the processing unit 301 is configured to determine the SCI according to the position of the strongest coefficient and the bit width of the SCI.
  • an embodiment of the present invention provides a network device.
  • the composition structure of the network device 400 includes:
  • the second sending unit 401 is configured to send configuration parameters, where the configuration parameters are used by the terminal device to determine the bit width of the SCI;
  • the receiving unit 402 is configured to receive channel state information carrying SCI.
  • the configuration parameter includes any one of the following:
  • the number of spatial basis vectors L and the number of maximum non-zero coefficients K 0 The number of spatial basis vectors L and the number of maximum non-zero coefficients K 0 , the granularity of the frequency domain basis vectors, the total number of frequency domain basis vectors N 3 , the number of spatial basis vectors selected by the terminal equipment M, each of the terminal equipment selections
  • the receiving unit 402 is further configured to receive the bit width of the SCI.
  • the bit width of the SCI is indicated by the first indication information
  • the first indication information is the fifteenth value, it indicates that the bit width of the SCI is or When the first indication information is the sixteenth value, it indicates that the bit width of the SCI is
  • the bit width of the SCI is indicated by the first indication information; if the first indication information belongs to the ninth parameter set, the bit width of the SCI is or If the first indication information belongs to the tenth parameter set, the bit width of the SCI is
  • the bit width of the SCI is indicated by the first indication information; when the size of the first indication information is the seventeenth value, the bit width of the SCI is indicated as or When the size of the first indication information is the eighteenth value, it indicates that the bit width of the SCI is
  • An embodiment of the present invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned terminal device when the computer program is running.
  • the steps of the channel state information transmission method are described in detail below.
  • An embodiment of the present invention also provides a network device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the above-mentioned network device when the computer program is running.
  • the steps of the channel state information transmission method are described in detail below.
  • the electronic device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704.
  • the various components in the electronic device 700 are coupled together through the bus system 705.
  • the bus system 705 is used to implement connection and communication between these components.
  • the bus system 705 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 705 in FIG. 9.
  • the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM Static Random Access Memory
  • SSRAM synchronous static random access memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhanced -Type synchronous dynamic random access memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • direct memory bus random access memory DRRAM, Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the electronic device 700. Examples of these data include: any computer program used to operate on the electronic device 700, such as the application program 7022.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 7022.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701 or implemented by the processor 701.
  • the processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 701 or instructions in the form of software.
  • the aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the processor 701 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 702.
  • the processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.
  • the electronic device 700 may be used by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable Logic Device
  • controller MCU
  • MPU or other electronic components to implement the foregoing method.
  • the embodiment of the present application also provides a storage medium for storing computer programs.
  • the storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • the storage medium may be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process in each method of the embodiment of the present application.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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Abstract

L'invention concerne un procédé de transmission d'informations d'état de canal, le procédé comprenant les étapes suivantes : un dispositif terminal détermine la largeur de bit d'un indicateur de coefficient le plus fort (SCI) selon un paramètre de configuration indiqué par un dispositif de réseau ou rapporte des informations du dispositif terminal ; le dispositif terminal détermine un SCI selon la largeur de bit ; et le dispositif terminal envoie des informations d'état de canal qui portent le SCI. L'invention concerne en outre un autre de transmission d'informations d'état de canal, un dispositif et un support de stockage.
PCT/CN2019/086509 2019-05-12 2019-05-12 Procédé de transmission d'informations d'état de canal, dispositif, et support de stockage WO2020227873A1 (fr)

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CN201980002811.6A CN110754054B (zh) 2019-05-12 2019-05-12 一种信道状态信息传输方法、设备及存储介质

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