WO2020057284A1 - 一种信道状态信息的确定方法及装置 - Google Patents

一种信道状态信息的确定方法及装置 Download PDF

Info

Publication number
WO2020057284A1
WO2020057284A1 PCT/CN2019/099687 CN2019099687W WO2020057284A1 WO 2020057284 A1 WO2020057284 A1 WO 2020057284A1 CN 2019099687 W CN2019099687 W CN 2019099687W WO 2020057284 A1 WO2020057284 A1 WO 2020057284A1
Authority
WO
WIPO (PCT)
Prior art keywords
csi
terminal
resources
codeword
resource
Prior art date
Application number
PCT/CN2019/099687
Other languages
English (en)
French (fr)
Inventor
苏昕
李辉
陈润华
高秋彬
缪德山
Original Assignee
电信科学技术研究院有限公司
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 电信科学技术研究院有限公司 filed Critical 电信科学技术研究院有限公司
Priority to KR1020217011836A priority Critical patent/KR102524774B1/ko
Priority to EP19863835.5A priority patent/EP3869882A4/en
Priority to US17/275,654 priority patent/US20220045730A1/en
Priority to JP2021516385A priority patent/JP7216813B2/ja
Publication of WO2020057284A1 publication Critical patent/WO2020057284A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and an apparatus for determining channel state information.
  • 5G the fifth generation mobile phone mobile communication standard, also known as the fifth generation mobile communication technology
  • 4G the fifth generation mobile communication technology
  • 5G will penetrate into all areas of the future society, and build a comprehensive information ecosystem with users as the center.
  • MIMO Multiple-Input and Multiple-Output
  • MIMO Multiple-Input and Multiple-Output
  • It can make full use of space resources, realize multiple transmissions and multiple receptions through multiple antennas, and can increase the channel capacity of the system multiple times without increasing spectrum resources and antenna transmit power.
  • Multipoint cooperative transmission technology can be roughly divided into two types of coherent and non-coherent transmission. Among them, during coherent transmission, each data layer is mapped to multiple TRP (Transmission, Reception, Point) / panel through weighted vectors. For non-coherent transmission, each data stream is mapped to only part of the TRP / panel.
  • TRP Transmission, Reception, Point
  • CSI Channel State Information
  • Network-side equipment can perform reasonable scheduling based on the CSI reported by the UE (User equipment) .
  • the standard-defined feedback mechanism in the prior art is aimed at single-point transmission and coherent multipoint transmission, and cannot support multipoint non-coherent transmission, which means that the prior art lacks one for multipoint non-coherent transmission. How to determine CSI.
  • This application provides a method for determining channel state information, including:
  • the network side device determines the measurement mode of the channel state information CSI.
  • the measurement mode is that the network side device uses M codewords through M DMRS (Demodulation Reference Signal) demodulation reference signal corresponding to the transmission point corresponding to the port group port group. Transmission, where M is greater than or equal to 1, each said codeword corresponds to a DMRS port group;
  • M Demodulation Reference Signal
  • the network-side device determines N CSI-RS (Channel State Information-reference Signal) resources according to the measurement method, and the N CSI-RS resources are used by the terminal to determine the corresponding M codewords.
  • the channel state information CSI of the transmission channel, the transmission channel corresponding to the codeword is a transmission channel from the transmission point of the codeword to the terminal, and M is less than or equal to N.
  • the network-side device first determines a measurement method, and determines different resources according to different measurement methods, and the functions of different resources are different.
  • the embodiment of the present application can provide a method applicable to multiple points. Method for determining non-coherent transmission CSI.
  • the method further includes:
  • the network-side device determines indication information corresponding to the N CSI-RS resources, and the indication information corresponding to the N CSI-RS resources is used to instruct the terminal to determine M codes according to the N CSI-RS resources Channel state information CSI of the transmission channel corresponding to the word;
  • the sending, by the network-side device, indication information corresponding to the N CSI-RS resources to the terminal includes:
  • the network-side device adds indication information corresponding to N CSI-RS resources to CSI-RS measurement resource parameters, and the network-side device sends the CSI-RS measurement resource parameters to the terminal, where
  • the CSI-RS measurement resource parameter is used to instruct the terminal to measure according to the CSI-RS measurement resource parameter;
  • the network-side device notifies the terminal of indication information corresponding to the N CSI-RS resources through high-level signaling; or
  • the network-side device notifies the terminal of indication information corresponding to the N CSI-RS resources through physical downlink signaling.
  • the method further includes:
  • the network-side device Determining, by the network-side device, CSI-RS configuration information, where the CSI-RS configuration information includes a CSI-RS measurement resource parameter and a report feedback parameter corresponding to the CSI-RS measurement resource parameter, and the CSI-RS
  • the measurement resource parameter includes indication information corresponding to the N CSI-RS resources, and the reporting feedback parameter is used to instruct the terminal to report content and feedback mode after measuring CSI;
  • the network-side device sends the CSI-RS configuration information to the terminal.
  • the instruction information includes any one or more of the first instruction information, the second instruction information, and the third instruction information;
  • the first indication information is used to instruct the terminal to estimate a channel estimation value of a transmission channel corresponding to the codeword;
  • the second indication information is used to instruct the terminal to estimate that the terminal receives a code corresponding to the CSI-RS resource when receiving a codeword corresponding to another CSI-RS resource Interference estimate of the interference caused by the word;
  • the third indication information is used to instruct the terminal to estimate noise received by the terminal.
  • the third instruction information is used to instruct the terminal to estimate an interference estimation value of other interference that the terminal receives.
  • An embodiment of the present application further provides a device for determining channel state information, including:
  • a measurement mode determining unit configured to determine a measurement mode of channel state information CSI, where the network side device uses M codewords to transmit through M demodulation reference signal port groups DMRS port group corresponding transmission points, Where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • a resource determining unit configured to determine N CSI-RS resources according to the measurement method, and the N CSI-RS resources are used by a terminal to determine channel state information CSI of a transmission channel corresponding to M codewords, where the codewords correspond to The transmission channel is a transmission channel from the transmission point of the codeword to the terminal, and M is less than or equal to N.
  • resources can be configured for multipoint non-coherent transmission, so that the terminal can use the resources to determine CSI for multipoint non-coherent transmission.
  • the resource determining unit is specifically configured to:
  • the indication information corresponding to the N CSI-RS resources is used to instruct the terminal to determine the transmission channel corresponding to the M codewords according to the N CSI-RS resources Channel state information CSI;
  • the resource determining unit is specifically configured to:
  • the network-side device Adding indication information corresponding to N CSI-RS resources to CSI-RS measurement resource parameters, the network-side device sending the CSI-RS measurement resource parameters to the terminal, wherein the CSI-RS measurement
  • the resource parameter is used to instruct the terminal to measure according to the CSI-RS measurement resource parameter;
  • the physical downlink signaling is used to notify the terminal of indication information corresponding to the N CSI-RS resources.
  • the resource determining unit is specifically configured to:
  • the CSI-RS configuration information includes a CSI-RS measurement resource parameter and a report feedback parameter corresponding to the CSI-RS measurement resource parameter
  • the CSI-RS measurement resource parameter includes Indication information corresponding to the N CSI-RS resources
  • the reporting feedback parameter is used to instruct the terminal to report content and feedback mode after measuring CSI
  • the instruction information includes any one or more of the first instruction information, the second instruction information, and the third instruction information;
  • the first indication information is used to instruct the terminal to estimate a channel estimation value of a transmission channel corresponding to the codeword;
  • the second indication information is used to instruct the terminal to estimate a codeword corresponding to the CSI-RS resource that the terminal receives when receiving a codeword corresponding to another CSI-RS resource Interference estimate of the generated interference;
  • the third indication information is used to instruct the terminal to estimate noise received by the terminal.
  • the third instruction information is used to instruct the terminal to estimate an interference estimation value of other interference that the terminal receives.
  • An embodiment of the present application further provides an electronic device, including:
  • At least one processor At least one processor
  • a memory connected in communication with the at least one processor; wherein,
  • the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute any one of the foregoing methods.
  • An embodiment of the present application further provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute any one of the foregoing methods.
  • This application also provides a method for determining channel state information, including:
  • the terminal receives N CSI-RS resources sent by the network-side device, and the N CSI-RS resources are determined by the network-side device according to a measurement mode of the channel state information CSI, where the measurement mode uses M network-side devices
  • the codewords are transmitted through the transmission points corresponding to the M demodulation reference signal port groups DMRS port group, where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • the terminal determines channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources, where the transmission channel is a transmission channel from the transmission point of the codeword to the terminal, where M is less than or equal to N .
  • the terminal determines the CSI of the transmission channel corresponding to the M codewords according to the N CSI-RS resources set on the network side.
  • the embodiment of the present application provides a determination of CSI suitable for multipoint non-coherent transmission method.
  • the terminal determining channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources includes any one or more of the following:
  • the terminal estimates a channel estimation value of a transmission channel corresponding to the codeword according to the CSI-RS resources;
  • the terminal estimates, based on the CSI-RS resources, a codeword corresponding to the CSI-RS resource that the terminal receives when receiving a codeword corresponding to another CSI-RS resource. Interference estimate of the interference;
  • the terminal estimates noise received by the terminal according to the CSI-RS resources;
  • the terminal estimates, according to the CSI-RS resources, interference estimation values of other interferences that the terminal receives.
  • the method further includes:
  • indication information corresponding to the N CSI-RS resources, where the indication information includes any one or more of first indication information, second indication information, and third indication information;
  • the terminal estimating a channel estimation value of a transmission channel corresponding to the codeword according to the CSI-RS resources includes:
  • the terminal estimates, based on the CSI-RS resource, a codeword corresponding to the CSI-RS resource that the terminal receives when receiving a codeword corresponding to another CSI-RS resource.
  • Interference estimates for generated interference including:
  • the terminal estimates, based on the second indication information and the CSI-RS resource, interference that the terminal receives when receiving codewords corresponding to other CSI-RS resources, and the codewords corresponding to the CSI-RS resources
  • the estimated interference value wherein the second indication information is used to instruct the terminal to estimate a value generated by a codeword corresponding to the CSI-RS resource when the terminal receives a codeword corresponding to another CSI-RS resource.
  • the terminal estimating the noise received by the terminal according to the CSI-RS resources includes:
  • the terminal For each of the CSI-RS resources, the terminal estimating, according to the CSI-RS resources, an interference estimation value of other interferences received by the terminal, including:
  • the acquiring, by the terminal, indication information corresponding to the N CSI-RS resources includes:
  • CSI-RS measurement resource parameter includes indication information corresponding to N CSI-RS resources
  • the terminal receives physical downlink signaling sent by the network-side device, and the physical downlink signaling includes indication information corresponding to the N CSI-RS resources.
  • the acquiring, by the terminal, indication information corresponding to the N CSI-RS resources includes:
  • the terminal determines the indication information corresponding to the N CSI-RS resources according to the number of the received CSI-RS resources, the binding relationship between the number of CSI-RS resources, and the indication information.
  • the CSI includes a PMI (Precoding Matrix Indicator) corresponding to a CSI-RS resource corresponding to the codeword, and an RI corresponding to a CSI-RS resource corresponding to the codeword. (RankIndication, rank indication) and CQI (Channel Quality Indicator) corresponding to the codeword.
  • PMI Precoding Matrix Indicator
  • RI RI
  • CQI Channel Quality Indicator
  • the determining, by the terminal according to the N CSI-RS resources, the channel state information CSI of the transmission channels corresponding to the M codewords includes:
  • the terminal assumes that the codeword corresponding to the CSI-RS resource is sent via the DMRS port corresponding to the CSI-RS resource, and the codeword corresponding to the CSI-RS resource is used. PMI / RI is transmitted to the terminal through a transmission point corresponding to the DMRS port group.
  • the assumption conditions further include:
  • the terminal assumes that when receiving a codeword corresponding to another DMRS port group, the terminal uses the interference generated by the codeword corresponding to the DMRS port group, and uses the information corresponding to the CSI-RS resource.
  • PMI / RI is transmitted to the terminal through a transmission point corresponding to the DMRS port group.
  • the determining, by the terminal, channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources includes:
  • the terminal reports channel state information CSI of a transmission channel corresponding to the M codewords
  • the terminal reports channel state information CSI of a transmission channel corresponding to the M codewords.
  • An embodiment of the present application further provides a device for determining channel state information, including:
  • a receiving unit configured to receive N CSI-RS resources sent by a network-side device, where the N CSI-RS resources are determined by a network-side device according to a channel state information CSI measurement method, and the measurement method is the network side
  • the device uses M codewords to transmit through the transmission points corresponding to the M demodulation reference signal port groups DMRS port group, where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • a CSI determining unit configured to determine channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources, where the transmission channel is a transmission channel from a transmission point of the codeword to a terminal, where M Less than or equal to N.
  • the receiving unit receives the configured resources and determines the CSI of the multipoint non-coherent transmission mode through the CSI determining unit and the configured resources.
  • the CSI determination unit is specifically configured to determine channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources, including any one or more of the following:
  • estimating a channel estimation value of a transmission channel corresponding to the codeword according to the CSI-RS resources For each of the CSI-RS resources, estimating a channel estimation value of a transmission channel corresponding to the codeword according to the CSI-RS resources;
  • an interference estimation value of other interference to which the terminal is subjected is estimated according to the CSI-RS resources.
  • the receiving unit is further configured to:
  • the indication information includes any one or more of first indication information, second indication information, and third indication information;
  • the CSI determining unit is specifically configured to:
  • a channel estimation value of a transmission channel corresponding to the codeword is estimated according to the first indication information and the CSI-RS resources, where the first indication information is used to indicate the
  • the terminal estimates a channel estimation value of a transmission channel corresponding to the codeword
  • the terminal For each of the CSI-RS resources, according to the second indication information and the CSI-RS resource estimation, the terminal receives the codeword corresponding to other CSI-RS resources, and the CSI-RS resources An interference estimation value of interference generated by a corresponding codeword, wherein the second indication information is used to instruct the terminal to estimate the CSI-RS resource that the terminal receives when receiving a codeword corresponding to another CSI-RS resource The interference estimate of the interference caused by the corresponding codeword;
  • the noise received by the terminal is estimated according to the third indication information and the CSI-RS resource, and the third indication information is further used to instruct the terminal to estimate the noise Noise received by the terminal;
  • an interference estimation value of other interference to which the terminal is subjected is estimated according to the third indication information and the CSI-RS resource, where the third indication information is further used to indicate the The terminal estimates interference estimation values of other interferences to which the terminal is subjected.
  • the receiving unit is specifically configured to:
  • CSI-RS measurement resource parameter includes indication information corresponding to N CSI-RS resources
  • the receiving unit is specifically configured to:
  • the CSI includes: a precoding matrix indicator PMI corresponding to a CSI-RS resource corresponding to the codeword, a rank indicator RI corresponding to a CSI-RS resource corresponding to the codeword, and the The channel quality corresponding to the codeword indicates CQI.
  • the CSI determining unit is specifically configured to:
  • a codeword corresponding to the CSI-RS resource sent via a DMRS port corresponding to the CSI-RS resource uses a PMI / RI corresponding to the CSI-RS resource And transmitting to the terminal through a transmission point corresponding to the DMRS port group.
  • the assumption conditions further include:
  • the CSI determining unit is specifically configured to:
  • An embodiment of the present application further provides an electronic device, including:
  • At least one processor At least one processor
  • a memory connected in communication with the at least one processor; wherein,
  • the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform any of the methods described above.
  • An embodiment of the present application further provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute any one of the foregoing methods.
  • FIG. 1 is a schematic structural diagram of a communication architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a communication architecture according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for determining channel state information according to an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a method for determining channel state information according to an embodiment of the present application
  • FIG. 5 is a schematic structural diagram of CSI-RS configuration information according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for determining channel state information according to an embodiment of the present application
  • FIG. 7 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for determining channel state information according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a device for determining channel state information according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application; the communication system includes a network-side device 101 and a terminal 102.
  • the terminal 102 and the network-side device 101 communicate with each other through some air interface technology.
  • the air interface technology may include: 2G (such as the Global Mobile Communication System), 3G (UMTS (Universal Mobile Telecommunications System, Universal Mobile Communication System), WCDMA (Wideband Code Division Multiple Access), TD -SCDMA (Time Division-Synchronous Code Division Access), 4G (such as FDD LTE, TDD LTE) and New RAT (Radio Access Technology) systems, such as 5G systems.
  • 2G such as the Global Mobile Communication System
  • 3G Universal Mobile Telecommunications System, Universal Mobile Communication System
  • WCDMA Wideband Code Division Multiple Access
  • TD -SCDMA Time Division-Synchronous Code Division Access
  • 4G such as FDD LTE, TDD LTE
  • New RAT Radio Access Technology
  • the terminal 102 described in the embodiment of the present application will be described as a UE in a general sense.
  • the terminal 102 may also be referred to as a mobile station, an access terminal, a user unit, a user station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a user device, a wireless communication device, a user agent, or a user device.
  • User equipment can be cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (English: Wireless Local Loop, WLL) stations, personal digital processing (English: Personal Digital Assistant, PDA) , Handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and mobile stations in 5G networks or future evolved public land mobile networks (English: Public Land Mobile Network, PLMN User equipment in the network.
  • the terminal 102 may further include another device such as a relay (English: Relay) capable of performing data communication with the network measurement device 101 (for example, a base station).
  • a relay English: Relay
  • FIG. 2 is a schematic diagram of another application scenario provided by an embodiment of the present application.
  • FIG. 2 shows a hypercell formed by a high-density transmission point (Transmission / Reception Point (TRP)).
  • TRP Transmission / Reception Point
  • a terminal 102 can communicate with multiple transmission points to form a user equipment-centric communication system (UE-cellcenter-like).
  • UE-cellcenter-like user equipment-centric communication system
  • UE-cellcenter-like user equipment-centric communication system
  • a plurality of transmission points adjacent to each other may be divided into a group to form a group of transmission points shown by circles in the drawing, which may be referred to as a TRP group (TRP set) or a cooperative transmission set.
  • TRP group TRP set
  • the division manner of the TRP group is not limited to the division manner based on the location, but may also be other division manners, for example, dividing the highly relevant TRP into a group, which is not limited in the embodiment of the present application.
  • the transmission point can be a base station (Base TransceiverStation, BTS) in a GSM system or a CDMA system, or a base station (NodeB) in a WCDMA system, or an evolved base station (Evolved NodeB) in an LTE system.
  • BTS Base TransceiverStation
  • NodeB base station
  • Evolved NodeB evolved base station
  • eNB or eNodeB evolved base station
  • network equipment such as base stations and micro base stations in a 5G network, which is not limited in this embodiment of the present application.
  • each transmission point may be a TRP (Transmission / Receiption Point) for each cooperation or may be an antenna panel for each cooperation.
  • TRP Transmission / Receiption Point
  • signals sent by different TRPs / panels may have relatively independent large-scale features, such as average delay, delay spread, and average Doppler shift. , Doppler extension, and airspace reception parameters. Therefore, in the NR system, a case where two or more reference signal channel large-scale parameters are consistent is called QCL (Quasi Co-Loacted, quasi co-location). Otherwise, it is called non-QCL.
  • QCL Quadrature Co-Loacted, quasi co-location
  • each DMRS port in the DMRS port group has a QCL relationship, that is, each DMRS port in the group QCL.
  • the DMRS ports in the same CDM (Code Division Multiplexing) group also have a QCL relationship.
  • each data channel supports a maximum of two DMRS ports.
  • one DMRS port group can be transmitted through one transmission point or two transmission points, and the DMRS ports corresponding to the two transmission points also have a QCL relationship.
  • the terminal 102 transmits through multiple transmission points.
  • the prior art cannot provide a CSI determination suitable for the multi-point non-coherent transmission technology (NC-JT). method.
  • NC-JT taking a case where a maximum of two codewords are sent as an example, the NC-JT can be roughly divided into the following cases:
  • Each downlink physical downlink control channel PDCCH schedules its own downlink shared channel PDSCH, and different PDSCHs are transmitted through different TRP / panels, and each TRP / panel corresponds to a DMRS port group;
  • Case two one PDCCH schedules one PDSCH.
  • Case 2 corresponds to three transmission cases, which are:
  • Case 2-1 Transmission of M codewords, and each codeword transmission corresponds to a TRP / panel, and each TRP / panel corresponds to a DMRS port group;
  • Case 2-2 One codeword is transmitted, and this one codeword is mapped to two TRP / panel, each TRP / panel corresponds to a DMRS port group;
  • Case 2-3 Two codewords are transmitted, one of which is mapped to two TRP / panel and the other to one TRP / panel, and each TRP / panel corresponds to a DMRS port group.
  • the PDSCH transmitted at each transmission point is transmitted through different TRP / panel, which is the same as the case of single-point transmission in the prior art. Similar, so the CSI feedback mechanism defined in existing standards can be used.
  • an embodiment of the present application provides a method for determining channel state information CSI, as shown in FIG. 3, which specifically includes:
  • Step 301 The network-side device determines a measurement mode of the channel state information CSI.
  • Step 302 The network-side device determines N CSI-RS resources according to the measurement mode.
  • Step 303 The network-side device sends a CSI-RS signal to the terminal through the N CSI-RS resources.
  • Step 304 The terminal receives a CSI-RS signal sent by the network-side device to the terminal through the N CSI-RS resources.
  • Step 305 The terminal determines the CSI of the transmission channel corresponding to the M codewords according to the CSI-RS signals carried by the N CSI-RS resources.
  • a network-side device when a network-side device needs to configure a CSI-RS resource for a terminal, it first obtains a CSI measurement method.
  • the measurement method is that the network-side device uses M codewords and M demodulates Reference signal port group DMRS port group corresponding transmission point for transmission, where M is greater than or equal to 1, and each codeword corresponds to a DMRS port group.
  • the measurement method determined by the network-side device refers to what method the network side wants to use for transmission with the terminal side.
  • the network side needs the terminal side to report the CSI of each codeword corresponding to the measurement method.
  • the network side The reported CSI determines the transmission quality of the transmission method, and further determines whether to transmit according to the transmission method.
  • the transmission mode assumed by the network-side device is that the network side transmits M codewords to the terminal through the transmission points corresponding to the M DMRS port groups, and each DMRS port group corresponds to a codeword respectively.
  • the network-side device determines N CSI-RS resources according to the measurement method, and the N CSI-RS resources are used by the terminal to determine channel state information CSI of a transmission channel corresponding to M codewords, where the codewords correspond to The transmission channel is a transmission channel from the transmission point of the codeword to the terminal, and M is less than or equal to N.
  • the network-side device is configured with M or more CSI-RS resources, so that the terminal can use the CSI-RS resources based on M or more. Reporting the CSI of the transmission channel corresponding to the M codewords ensures the accuracy of the report and provides the terminal with multiple methods for determining the CSI.
  • each CSI-RS resource corresponds to one codeword, that is, the N CSI-RS resources configured by the network-side device correspond to N codewords, respectively.
  • the network-side device is configured with N CSI-RS resources, and transmits CSI-RS signals on each CSI-RS resource.
  • the terminal receives CSI-RS signals on each CSI-RS resource, and determines M based on the CSI-RS signal.
  • the network-side device sends a downlink reference signal to the terminal.
  • the downlink reference signal is a CSI-RS signal.
  • the terminal may determine the CSI of the transmission channel corresponding to the M codewords by receiving the CSI-RS signals carried on the CSI-RS resources, or may receive the CSI-RS signals carried by the CSI-RS resources and the CSI-RS.
  • the indication information corresponding to the RS resource determines the CSI of the transmission channel corresponding to the M codewords, and the indication information corresponding to the CSI-RS resource is used to instruct the terminal to determine the M codewords by using the CSI-RS signals carried on the CSI-RS resources CSI of the corresponding transmission channel.
  • the indication information corresponding to the CSI-RS resource may be sent by the network-side device to the terminal, or may be obtained by the terminal itself.
  • the network-side device needs to determine N CSI after determining the N CSI-RS resources. -Indication information corresponding to the RS resource, and sending the indication information corresponding to the N CSI-RS resources to the terminal.
  • the network-side device notifies the terminal of the indication information corresponding to the N CSI-RS resources through high-level signaling.
  • the high-level signaling is RRC (Radio Resource Control) signaling.
  • the network-side device notifies the terminal of the indication information corresponding to the N CSI-RS resources through physical downlink signaling.
  • the physical downlink signaling may be DCI (Downlink Control Information) carried by a PDCCH (Physical Downlink Control Channel).
  • DCI Downlink Control Information
  • PDCCH Physical Downlink Control Channel
  • the terminal receives the CSI-RS measurement resource parameter sent by the network-side device, and the CSI-RS measurement resource parameter includes indication information corresponding to the N CSI-RS resources; or
  • the terminal receives high-level signaling sent by a network-side device, and the high-level signaling includes indication information corresponding to N CSI-RS resources; or
  • the terminal receives physical downlink signaling sent by a network-side device, and the physical downlink signaling includes indication information corresponding to N CSI-RS resources.
  • the terminal after the terminal acquires N CSI-RS resources, it is necessary to measure the channel estimation value of the transmission channel corresponding to the codeword, and / or estimate that the terminal receives the corresponding CSI-RS resources corresponding to other CSI-RS resources.
  • the estimated interference value of the interference generated by the codeword corresponding to the CSI-RS resource when the codeword is received, and / or the terminal estimates the interference value of the terminal and / or the estimated interference value of other interference the terminal receives.
  • the indication information corresponding to the N CSI-RS resources determined by the network-side device includes any one or more of the first indication information, the second indication information, and the third indication information, and the first indication information is used to instruct the terminal to estimate The channel estimation value of the transmission channel corresponding to the codeword corresponding to each CSI-RS resource, and the second indication information is used to instruct the terminal to estimate the code corresponding to the CSI-RS resource received by the terminal when receiving the codeword corresponding to other CSI-RS resources.
  • the interference estimation value of the interference generated by the word, and the third indication information is used to instruct the terminal to estimate the interference estimation value of other interference that the terminal receives.
  • the other CSI-RS resources mentioned above refer to resources other than N CSI-RS resources.
  • the interference generated by the terminal when receiving the codeword corresponding to the other CSI-RS resources refers to the fact that the terminal receives the codeword corresponding to the other CSI-RS resources.
  • a codeword corresponding to the CSI-RS resource is also received, and transmission of the codeword corresponding to the CSI-RS resource will cause interference with codewords corresponding to other CSI-RS resources.
  • other interference refers to interference other than the interference estimation value of the interference generated by the codeword corresponding to the CSI-RS resource when receiving the codeword corresponding to the other CSI-RS resource, for example, In Figure 2, the data that TRP1 sends to other terminals is other interference.
  • the third indication information is used to instruct the terminal to estimate other interference of each layer to which the terminal is subjected.
  • the noise received by the terminal refers to noise in mobile communication, and can be divided into internal noise and external noise.
  • the internal noise mainly refers to the inherent noise of the terminal receiver itself, and the external noise is mainly natural noise and man-made noise. noise.
  • the network-side device determines N CSI-RS resources according to the measurement method
  • the network-side device configures a CSI-RS configuration information
  • the CSI-RS configuration information is used to indicate how the terminal Use CSI-RS resources to measure and report which CSI information to the network-side device.
  • the CSI-RS configuration information includes a CSI-RS measurement resource parameter (Resource setting) and a report feedback parameter (Report setting) corresponding to the CSI-RS measurement resource parameter.
  • the CSI-RS measurement resource parameter is used to configure CSI -A parameter of the RS resource, the reported feedback parameter is used to configure the content of the parameter fed back by the terminal to the network-side device.
  • the reported feedback parameters include the configuration of the following parameters: CSI feedback parameter (report) quantity, codebook configuration, time domain behavior of CSI feedback, frequency domain granularity of PMI and CQI, and measurement constraint configuration.
  • the CSI feedback parameter is used to indicate whether the UE performs beam management related feedback or the CSI obtains related feedback.
  • N CSI-RS resources are managed through a CSI-RS resource set, and the configuration of CSI-RS resources on the CSI-RS resource set The information is configured through CSI-RS measurement resource parameters.
  • the network-side device After determining the CSI-RS configuration information, the network-side device sends the CSI-RS configuration information to the terminal. After the terminal obtains the CSI-RS configuration information, the terminal corresponds to the N CSI-RS resources in the CSI-RS measurement resource parameter.
  • the indication information determines the use of the N CSI-RS resources, and determines the content of the feedback CSI according to the reported feedback parameter.
  • the network-side device may also set other CSI-RS configuration information.
  • the network-side device is configured with one CSI-RS configuration information, and the CSI-RS configuration information includes three CSI-RS configuration information. RS measurement resource parameters and a reporting feedback mechanism corresponding to the three CSI-RS measurement resource parameters are not described herein.
  • the terminal may also obtain indication information corresponding to the N CSI-RS resources after receiving the N CSI-RS resources, and the terminal may according to the number of the received CSI-RS resources and the number of CSI-RS resources
  • the binding relationship with the indication information determines the indication information corresponding to the N CSI-RS resources.
  • the binding relationship in the embodiment of the present application is established and saved by the terminal before.
  • the terminal determines the CSI of the transmission channel corresponding to the M codewords according to the received N CSI-RS resources, which specifically includes any one or more of the following:
  • the terminal estimates a channel estimation value of a transmission channel corresponding to the CSI-RS resource estimation codeword;
  • the terminal estimates, according to the CSI-RS resource, an interference estimation value of interference generated by the terminal when receiving a codeword corresponding to another CSI-RS resource.
  • the terminal estimates the noise received by the terminal according to the CSI-RS resource;
  • the terminal estimates an interference estimation value of other interference that the terminal receives according to the CSI-RS resource.
  • the terminal may directly use the N CSI-RS resources to determine the channel state information CSI of the transmission channel corresponding to the M codewords.
  • the terminal may determine the channel state information CSI of the transmission channel corresponding to the M codewords according to the N CSI-RS resources and the indication information corresponding to the N CSI-RS resources.
  • the terminal may obtain part of the indication information, for example, the terminal obtains the first indication information, and the terminal estimates the channel estimation of the transmission channel corresponding to the codeword according to the first indication information and the CSI-RS resource. Value, the terminal estimates, based on the CSI-RS resource, an interference estimation value of the interference that the terminal receives when receiving the codewords corresponding to other CSI-RS resources.
  • the CSI-RS resource estimates the noise received by the terminal; the terminal estimates an interference estimation value of other interference that the terminal receives according to the CSI-RS resource.
  • the CSI for each codeword, includes a precoding matrix indication PMI corresponding to a CSI-RS resource corresponding to the codeword, and a CSI-RS resource corresponding to the codeword.
  • the rank indicates RI and the channel quality indication CQI corresponding to the codeword.
  • the terminal reports the PMI / RI / CQI for each codeword to the network-side device.
  • the terminal may determine the content to be reported according to the report feedback parameter, which may be all or part of the report.
  • the PMI may be a high-precision PMI or a low-precision PMI.
  • the terminal determines the channel state information CSI of the transmission channel corresponding to the M codewords according to the N CSI-RS resources
  • the following assumptions are included: For each CSI-RS resource, the terminal assumes The codeword corresponding to the CSI-RS resource sent by the DMRS port group corresponding to the RS resource uses the PMI / RI corresponding to the CSI-RS resource, and the codeword is transmitted to the terminal through the transmission point corresponding to the DMRS port group.
  • the terminal when the terminal determines the CSI of the transmission information corresponding to the M codewords, the terminal receives the codeword sent through the DMRS port group, and the codeword is in the N CSI-RS resources.
  • One CSI-RS resource corresponds, and the precoding of the codeword uses the PMI / RI corresponding to the CSI-RS resource.
  • each codeword corresponds to a CSI-RS resource, so the PMI / RI corresponding to each CSI-RS resource is also the PMI / RI corresponding to each codeword.
  • the PMI / RI corresponding to each codeword is stored in the terminal in advance.
  • TRP1 sends a codeword to the terminal, and TRP2 does not send a codeword to the terminal, or TRP2 sends a codeword to the terminal, and TRP1 does not send a code to the terminal.
  • TRP1 sends a codeword to the terminal, and TRP2 sends a codeword to the terminal.
  • the assumption conditions further include that for each CSI-RS resource, the terminal assumes that the interference of the codeword corresponding to the DMRS port group received when receiving the codeword corresponding to the other DMRS port group is used.
  • the PMI / RI corresponding to the CSI-RS resource, and the codeword is transmitted to the terminal through a transmission point corresponding to the DMRS port group.
  • the terminal assumes that the terminal receives codewords from at least two DMRS ports at the same time. For each codeword, another codeword is transmitted to the codeword. interference.
  • TRP1 sends codeword 1 to the terminal
  • TRP2 sends codeword 2 to the terminal.
  • the terminal receives codeword 1
  • the transmission of codeword 2 is interference to codeword 1.
  • the terminal is at When codeword 2 is received, transmission of codeword 1 is interference to codeword 2.
  • the terminal also assumes that it receives other interference and / or noise during transmission.
  • the terminal determining the channel state information CSI of the transmission channel corresponding to the M codewords according to the N CSI-RS resources includes:
  • the terminal determines the channel state information CSI of the transmission channel corresponding to the N codewords according to the N CSI-RS resources;
  • the terminal reports channel state information CSI of the transmission channel corresponding to the M codewords
  • the terminal determines the channel state information CSI of the transmission channel corresponding to the M codewords according to the M CSI-RS resources of the N CSI-RS resources;
  • the terminal reports channel state information CSI of the transmission channel corresponding to the M codewords.
  • the terminal may select M CSI-RS resources from acquiring N CSI-RS resources, the M CSI-RS resources correspond to M codewords, and the terminal is based on the M CSI-RS
  • the resources determine the transmission channel CSI corresponding to the M codewords.
  • the terminal may determine the transmission channel CSI corresponding to the N codewords based on the N CSI-RS resources, and then select the transmission channel CSI corresponding to the M codewords to report.
  • the measurement method is that the network-side device uses 2 codewords to pass 2 demodulation reference signal port groups DMRS port group corresponding transmission points for transmission, wherein each of said codewords corresponds to a DMRS port group;
  • Step 401 The network-side device determines two CSI-RS resources, which are Reource1 and Reource2, according to the measurement method.
  • the network-side device determines the indication information corresponding to the two CSI-RS resources, specifically:
  • Resource 1 it is used to estimate the channel from TRP / panel A to the terminal; it can also be used to estimate the interference caused by the signal sent by TRP / panel A (codeword A) to the signal sent from TRP / panel B (codeword B); It can also be used to estimate other interference and / or noise.
  • For Resource 2 Used to estimate the channel from TRP / panel B to the terminal; this channel can also be used to estimate the signal (codeword B) sent by TRP / panel B to the signal (codeword A) sent from TRP / panel A Interference; can also be used to estimate other interference and / or noise.
  • Step 403 The network-side device is configured with a CSI-RS configuration information.
  • the CSI-RS configuration information includes a CSI-RS measurement resource parameter (Resource setting) and a report feedback parameter (Report setting) corresponding to the CSI-RS measurement resource parameter.
  • N CSI-RS resources are managed through one CSI-RS resource set, and CSI-RS resource configuration on the CSI-RS resource set is configured through CSI-RS measurement resource parameters.
  • Information as shown in Figure 5;
  • Step 404 The network-side device sends the two CSI-RS resources and the CSI-RS configuration information to the terminal through high-level signaling.
  • Step 405 The terminal receives two CSI-RS resources and configuration information of the CSI-RS resources sent by the network-side device.
  • Step 406 The terminal estimates the channel from the TRP / panel A to the terminal H of the TRPA according to the indication information corresponding to the Resource 1 and the Resource 1.
  • Step 407 The terminal estimates other interference and / or noise (I + N) according to the resource information 1 and the indication information corresponding to the resource 1;
  • Step 408 The terminal estimates the interference caused by the signal (codeword B) sent by TRP / panel B (DMRS port group B) to the signal (codeword A) sent from TRP / panel A according to the indication information corresponding to Resource 2 and Resource 2. (Interference from TRP / panel);
  • step 409 the terminal determines the PMI / RI / CQI (remember) of the signal (codeword A) sent via the DMRS port group A (corresponding to TRP / panel A) according to TRPA, I + N and Interference from TRP / panel.
  • PMI_A / RI_A / CQI_A) the terminal determines the PMI / RI / CQI (remember) of the signal (codeword A) sent via the DMRS port group A (corresponding to TRP / panel A) according to TRPA, I + N and Interference from TRP / panel.
  • PMI / RI / CQI (denoted as PMI_B / RI_B / CQI_B) of the signal (codeword B) sent via DMRS port group B (corresponding to TRP / panel B), and the terminal made the following assumptions when determining the above CSI:
  • the signal (codeword A) sent via DMRS port group A uses PMI_A / RI_A corresponding to codeword A and arrives at the terminal's channel (estimated by Resource 1) via TRP / panel A The terminal;
  • the signal (codeword B) sent via DMRS port group B (corresponding to TRP / panel B) uses PMI_B / RI_B corresponding to codeword B and arrives at the terminal's channel (estimated by Resource 2) via TRP / panel B The terminal;
  • the terminal assumes that codeword A is subject to interference from codeword B, uses PMI_B / RI_B corresponding to codeword B, and reaches the terminal through the channel TRP / panel B to the terminal (estimated by Resource 2);
  • the interference from codeword A from codeword A uses the precoding matrix corresponding to PMI_A / RI_A, and reaches the terminal through the channel of TRP / panel A to the terminal (estimated from resource1);
  • the terminal also assumes that it is receiving other interference / noise
  • Step 410 The terminal feeds back PMI_A / RI_A / CQI_A and PMI_B / RI_B / CQI_B to the network-side device.
  • steps 406 to 408 may be reversed.
  • an embodiment of the present application further provides a method for determining channel state information, as shown in FIG. 6, including:
  • Step 601 The network-side device determines a measurement mode of the channel state information CSI, where the network-side device uses M codewords to transmit through M transmission points corresponding to the M demodulation reference signal port group DMRS port group, where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • Step 602 The network-side device determines N CSI-RS resources according to the measurement method.
  • the N CSI-RS resources are used by a terminal to determine channel state information CSI of a transmission channel corresponding to M codewords.
  • the transmission channel corresponding to the word is a transmission channel from the transmission point of the codeword to the terminal, and M is less than or equal to N.
  • An embodiment of the present application further provides a device for determining channel state information, as shown in FIG. 7, including:
  • a measurement mode determining unit 701 is configured to determine a measurement mode of channel state information CSI, where the network side device uses M codewords to transmit through M demodulation reference signal port groups DMRS port group corresponding transmission points , Where M is greater than or equal to 1, each said codeword corresponds to a DMRS port group;
  • a resource determining unit 702 configured to determine N CSI-RS resources according to the measurement method, and the N CSI-RS resources are used by a terminal to determine channel state information CSI of a transmission channel corresponding to M codewords, where the codewords The corresponding transmission channel is a transmission channel from the transmission point of the codeword to the terminal, and M is less than or equal to N.
  • this application also provides an electronic device, as shown in FIG. 8, including:
  • It includes a processor 801, a memory 802, a transceiver 803, and a bus interface 804, where the processor 801, the memory 802, and the transceiver 803 are connected through a bus interface 804;
  • the processor 801 is configured to read a program in the memory 802 and execute the following methods:
  • the N CSI-RS resources are used by the terminal to determine channel state information CSI of a transmission channel corresponding to M codewords, and the transmission channel corresponding to the codewords is the A transmission path from a codeword to a transmission channel of the terminal, where M is less than or equal to N.
  • An embodiment of the present application provides a computer program product.
  • the computer program product includes a computing program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, To cause the computer to execute any one of the methods for determining channel state information.
  • the present application also provides a method for determining channel state information, as shown in FIG. 9, including:
  • Step 901 A terminal receives N CSI-RS resources sent by a network-side device, and the N CSI-RS resources are determined by the network-side device according to a channel state information CSI measurement method, and the measurement method is the network-side device.
  • Step 902 The terminal determines channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources, where the transmission channel is a transmission channel from the transmission point of the codeword to the terminal, where M Less than or equal to N.
  • An embodiment of the present application further provides a device for determining channel state information, as shown in FIG. 10, including:
  • the receiving unit 1001 is configured to receive N CSI-RS resources sent by a network-side device.
  • the N CSI-RS resources are determined by the network-side device according to a measurement mode of the channel state information CSI, and the measurement mode is the network.
  • the side device uses M codewords to transmit through M transmission points corresponding to the M demodulation reference signal port group DMRS port group, where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • a CSI determining unit 1002 is configured to determine channel state information CSI of a transmission channel corresponding to M codewords according to the N CSI-RS resources, where the transmission channel is a transmission channel from a transmission point of the codeword to a terminal, where M is less than or equal to N.
  • this application also provides an electronic device, as shown in FIG. 11, including:
  • It includes a processor 1101, a memory 1102, a transceiver 1103, and a bus interface 1104.
  • the processor 1101, the memory 1102, and the transceiver 1103 are connected through a bus interface 1104.
  • the processor 1101 is configured to read a program in the memory 1102 and execute the following methods:
  • N CSI-RS resources sent by a network-side device where the N CSI-RS resources are determined by a network-side device according to a measurement mode of channel state information CSI, where the measurement mode is that the network-side device uses M codes
  • the words are transmitted through the transmission points corresponding to the M demodulation reference signal port group DMRS port group, where M is greater than or equal to 1, and each of the codewords corresponds to a DMRS port group;
  • Channel state information CSI of a transmission channel corresponding to M codewords is determined according to the N CSI-RS resources, where the transmission channel is a transmission channel from the transmission point of the codeword to the terminal, where M is less than or equal to N.
  • An embodiment of the present application provides a computer program product.
  • the computer program product includes a computing program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, To cause the computer to execute any one of the methods for determining channel state information.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a particular manner such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction device, the instructions
  • the device implements the functions specified in one or more flowcharts and / or one or more blocks of the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of steps can be performed on the computer or other programmable device to produce a computer-implemented process, which can be executed on the computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more flowcharts and / or one or more blocks of the block diagrams.

Abstract

本申请提供一种信道状态信息的确定方法及装置，涉及通信技术领域，方法包括：网络侧设备确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；所述网络侧设备根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。通过上述方法，提供了一种适用于多点非相干传输的CSI的确定方法。

Description

一种信道状态信息的确定方法及装置
相关申请的交叉引用
本申请要求在2018年09月21日提交中国专利局、申请号为201811108580.0、申请名称为“一种信道状态信息的确定方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种信道状态信息的确定方法及装置。
背景技术
移动和宽带成为现代通信技术的发展方向，5G，第五代移动电话行动通信标准，也称第五代移动通信技术，也是4G之后的延伸。作为新一代信息通讯发展的主要方向，5G将渗透到未来社会的各个领域，以用户为中心构建全方位的信息生态系统。
MIMO(Multiple-Input Multiple-Output，多输入多输出)技术指在发射端和接收端分别使用多个发射天线和接收天线，使信号通过发射端与接收端的多个天线传送和接收，从而改善通信质量。它能充分利用空间资源，通过多个天线实现多发多收，在不增加频谱资源和天线发射功率的情况下，可以成倍的提高系统信道容量。
为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，现有技术中采用了多点协作传输技术。多点协作传输技术可以大致分为相干和非相干传输两种。其中，相干传输时，每个数据层会通过加权向量映射到多个TRP(Transmission Reception Point，传输接收点)/panel之上。而非相干传输时，每个数据流只映射到部分的TRP/panel上。
CSI(Channel State Information，信道状态信息)的反馈决定了MIMO传 输的性能，因此在整个MIMO设计中具有举足轻重的作用，网络侧设备根据UE(User equipment，用户终端)上报的CSI能够进行合理的调度。但是现有技术中的标准定义的反馈机制是针对单点传输和以及相干的多点传输，尚不能支持多点非相干传输，也就是说现有技术中缺少一种针对多点非相干传输的CSI的确定方法。
发明内容
本申请提供一种信道状态信息的确定方法，包括：
网络侧设备确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个DMRS(Demodulation Reference Signal，解调参考信号)端口组port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
所述网络侧设备根据所述测量方式确定N个CSI-RS(Channel State Information-reference signal，信道状态信息参考信号)资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
本申请实施例中，网络侧设备首先确定测量方式，根据不同的测量方式确定出不同的资源，且不同的资源的作用也不同，通过上述方法，本申请实施例能够提供一种适用于多点非相干传输的CSI的确定方法。
进一步地，所述网络侧设备根据所述测量方式确定N个CSI-RS资源后，还包括：
所述网络侧设备确定N个所述CSI-RS资源对应的指示信息，N个所述CSI-RS资源对应的指示信息用于指示所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
所述网络侧设备将所述N个所述CSI-RS资源对应的指示信息发送给所述终端。
进一步地，所述网络侧设备将N个所述CSI-RS资源对应的指示信息发送给所述终端，包括：
所述网络侧设备将N个所述CSI-RS资源对应的指示信息加入到CSI-RS测量资源参数中，所述网络侧设备将所述CSI-RS测量资源参数发送给所述终端，其中所述CSI-RS测量资源参数用于指示所述终端按照所述CSI-RS测量资源参数测量；或者
所述网络侧设备通过高层信令通知所述终端N个所述CSI-RS资源对应的指示信息；或者
所述网络侧设备通过物理下行信令通知所述终端N个所述CSI-RS资源对应的指示信息。
进一步地，所述网络侧设备根据所述测量方式确定N个CSI-RS资源后，还包括：
所述网络侧设备确定一个CSI-RS配置信息，所述CSI-RS配置信息中包括一个CSI-RS测量资源参数以及与所述CSI-RS测量资源参数对应的上报反馈参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息，所述上报反馈参数用于指示终端测量CSI后上报内容以及反馈方式；
所述网络侧设备将所述CSI-RS配置信息发送给所述终端。
进一步地，所述指示信息包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
针对每个所述CSI-RS资源，所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，所述第二指示信息用于指示所述终端估计，所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个所述CSI-RS资源，所述第三指示信息用于指示所述终端估计所述终端收到的噪声；和/或
所述第三指示信息用于指示所述终端估计所述终端受到的其他干扰的干 扰估计值。
本申请实施例还提供一种信道状态信息的确定装置，包括：
测量方式确定单元，用于确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
资源确定单元，用于根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
本申请实施例中，通过测量方式确定单元以及资源确定单元，可以为多点非相干传输的方式配置资源，以使终端能够利用资源确定多点非相干传输的CSI。
进一步地，所述资源确定单元具体用于：
确定N个所述CSI-RS资源对应的指示信息，N个所述CSI-RS资源对应的指示信息用于指示所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
将所述N个所述CSI-RS资源对应的指示信息发送给所述终端。
进一步地，所述资源确定单元具体用于：
将N个所述CSI-RS资源对应的指示信息加入到CSI-RS测量资源参数中，所述网络侧设备将所述CSI-RS测量资源参数发送给所述终端，其中所述CSI-RS测量资源参数用于指示所述终端按照所述CSI-RS测量资源参数测量；或者
通过高层信令通知所述终端N个所述CSI-RS资源对应的指示信息；或者
通过物理下行信令通知所述终端N个所述CSI-RS资源对应的指示信息。
进一步地，所述资源确定单元具体用于：
确定一个CSI-RS配置信息，所述CSI-RS配置信息中包括一个CSI-RS 测量资源参数以及与所述CSI-RS测量资源参数对应的上报反馈参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息，所述上报反馈参数用于指示终端测量CSI后上报内容以及反馈方式；
将所述CSI-RS配置信息发送给所述终端。
进一步地，所述指示信息包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
针对每个所述CSI-RS资源，所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，所述第二指示信息用于指示所述终端估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个所述CSI-RS资源，所述第三指示信息用于指示所述终端估计所述终端收到的噪声；和/或
所述第三指示信息用于指示所述终端估计所述终端受到的其他干扰的干扰估计值。
本申请实施例还提供一种电子设备，包括：
至少一个处理器；以及，
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行上述任一所述的方法。
本申请实施例还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行上述任一所述方法。
本申请还提供一种信道状态信息的确定方法，包括：
终端接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源 是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
本申请实施例中，终端根据网络侧设置的N个CSI-RS资源来确定M个码字对应的传输信道的CSI，本申请实施例提供了一种适用于多点非相干传输的CSI的确定方法。
进一步地，所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括如下任意一个或多个：
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端收到的噪声；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值。
进一步地，所述方法还包括：
所述终端获取N个所述CSI-RS资源对应的指示信息，所述指示信息中包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述码字对应的传输信道的信道估计值，包括：
所述终端根据所述第一指示信息以及所述CSI-RS资源估计所述码字对应 的传输信道的信道估计值，其中所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源，估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，包括：
所述终端根据所述第二指示信息以及所述CSI-RS资源，估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，其中所述第二指示信息用于指示所述终端估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的的干扰的干扰估计值；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端收到的噪声，包括：
所述终端根据所述第三指示信息以及所述CSI-RS资源估计所述终端收到的噪声，其中所述第三指示信息还用于指示所述终端估计所述终端收到的噪声；
针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值，包括：
所述终端根据所述第三指示信息以及所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值，其中所述第三指示信息还用于指示所述终端估计所述终端受到的其他干扰的干扰估计值。
进一步地，所述终端获取N个所述CSI-RS资源对应的指示信息，包括：
所述终端接收所述网络侧设备发送的CSI-RS测量资源参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息；或者
所述终端接收所述网络侧设备发送的高层信令，所述高层信令中包括N个所述CSI-RS资源对应的指示信息；或者
所述终端接收所述网络侧设备发送的物理下行信令，所述物理下行信令中包括N个所述CSI-RS资源对应的指示信息。
进一步地，所述终端获取N个所述CSI-RS资源对应的指示信息，包括：
所述终端根据接收到的所述CSI-RS资源的数量、CSI-RS资源的数量与指示信息的绑定关系确定N个所述CSI-RS资源对应的指示信息。
进一步地，针对每个码字，所述CSI包括所述码字对应的CSI-RS资源对应的PMI(Precoding Matrix Indicator，预编码矩阵指示)、所述码字对应的CSI-RS资源对应的RI(RankIndication，秩指示)以及所述码字对应的CQI(Channel Quality Indicator，信道质量指示)。
进一步地，所述终端根据N个所述CSI-RS资源确定M个所述码字对应的传输信道的信道状态信息CSI，包括：
所述终端根据假设条件以及N个所述CSI-RS资源确定M个所述码字对应的传输信道的信道状态信息CSI；
其中，所述假设条件为：
针对每个所述CSI-RS资源，所述终端假设经由所述CSI-RS资源对应的DMRS port group发送的，所述CSI-RS资源对应的码字，使用了与所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
进一步地，所述假设条件还包括：
针对每个所述CSI-RS资源，所述终端假设在接收其他DMRS port group对应的码字时受到的所述DMRS port group对应的码字产生的干扰，使用了所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
进一步地，所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括：
所述终端根据N个所述CSI-RS资源确定N个码字对应的传输信道的信道状态信息CSI；
所述终端上报M个码字对应的传输信道的信道状态信息CSI；
或者
所述终端根据N个所述CSI-RS资源中的M个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，M个所述CSI-RS资源对应M个码字；
所述终端上报M个码字对应的传输信道的信道状态信息CSI。
本申请实施例还提供一种信道状态信息的确定装置，包括：
接收单元，用于接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
CSI确定单元，用于根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
本申请实施例中，通过接收单元接收配置的资源以及通过CSI确定单元以及配置的资源确定多点非相干传输方式的CSI。
进一步地，所述CSI确定单元具体用于，根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括如下任意一个或多个：
针对每个所述CSI-RS资源，根据所述CSI-RS资源估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，根据所述CSI-RS资源估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个所述CSI-RS资源，根据所述CSI-RS资源估计所述终端收到的噪声；
针对每个所述CSI-RS资源，根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值。
进一步地，所述接收单元还用于：
获取N个所述CSI-RS资源对应的指示信息，所述指示信息中包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
所述CSI确定单元具体用于：
针对每个所述CSI-RS资源，根据所述第一指示信息以及所述CSI-RS资源估计所述码字对应的传输信道的信道估计值，其中所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
针对每个所述CSI-RS资源，根据所述第二指示信息以及所述CSI-RS资源估计，所述终端在接收其他CSI-RS资源对应的码字时受到的，所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，其中所述第二指示信息用于指示所述终端估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个所述CSI-RS资源，根据所述第三指示信息以及所述CSI-RS资源估计所述终端收到的噪声，其中所述第三指示信息还用于指示所述终端估计所述终端收到的噪声；
针对每个所述CSI-RS资源，根据所述第三指示信息以及所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值，其中所述第三指示信息还用于指示所述终端估计所述终端受到的其他干扰的干扰估计值。
进一步地，所述接收单元具体用于：
接收所述网络侧设备发送的CSI-RS测量资源参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息；或者
接收所述网络侧设备发送的高层信令，所述高层信令中包括N个所述CSI-RS资源对应的指示信息；或者
接收所述网络侧设备发送的物理下行信令，所述物理下行信令中包括N个所述CSI-RS资源对应的指示信息。
进一步地，所述接收单元具体用于：
根据接收到的所述CSI-RS资源的数量、CSI-RS资源的数量与指示信息的绑定关系确定N个所述CSI-RS资源对应的指示信息。
进一步地，针对每个码字，所述CSI包括：所述码字对应的CSI-RS资源对应的预编码矩阵指示PMI、所述码字对应的CSI-RS资源对应的秩指示RI以及所述码字对应的信道质量指示CQI。
进一步地，所述CSI确定单元具体用于：
根据假设条件以及N个所述CSI-RS资源确定M个所述码字对应的传输信道的信道状态信息CSI；
其中，所述假设条件为：
针对每个所述CSI-RS资源，假设经由所述CSI-RS资源对应的DMRS port group发送的所述CSI-RS资源对应的码字，使用了与所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
进一步地，所述假设条件还包括：
针对每个所述CSI-RS资源，假设在接收其他DMRS port group对应的码字时受到的所述DMRS port group对应的码字的干扰，使用了所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
进一步地，所述CSI确定单元具体用于：
根据N个所述CSI-RS资源确定N个码字对应的传输信道的信道状态信息CSI；
上报M个码字对应的传输信道的信道状态信息CSI；
或者
根据N个所述CSI-RS资源中的M个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
上报M个码字对应的传输信道的信道状态信息CSI。
本申请实施例还提供一种电子设备，包括：
至少一个处理器；以及，
与所述至少一个处理器通信连接的存储器；其中，
所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行上述任一所述的 方法。
本申请实施例还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行上述任一所述方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本申请实施例提供的一种通信架构的结构示意图；
图2为本申请实施例提供的一种通信架构的结构示意图；
图3为本申请实施例提供的一种信道状态信息的确定方法的流程示意图；
图4为本申请实施例提供的一种信道状态信息的确定方法的流程示意图；
图5为本申请实施例提供的一种CSI-RS配置信息的结构示意图；
图6为本申请实施例提供的一种信道状态信息的确定方法的流程示意图；
图7为本申请实施例提供的一种信道状态信息的确定装置的结构示意图；
图8为本申请实施例提供的一种电子设备的结构示意图；
图9为本申请实施例提供的一种信道状态信息的确定方法的流程示意图；
图10为本申请实施例提供的一种信道状态信息的确定装置的结构示意图；
图11为本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述，显然，所描述的实施例仅仅是本申请一部份实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的 范围。
参见图1，图1是本申请实施例涉及的一种通信系统的架构示意图；该通信系统包括网络侧设备101以及终端102。其中终端102与网络侧设备101通过某种空口技术相互通信。所述空口技术可包括：2G(如全球移动通信系统G S M)、3G(UMTS(Universal Mobile Telecommunications System，通用移动通信系统)、WCDMA(Wideband Code Division Multiple Access，宽带码分多址)、TD-SCDMA(Time Division-Synchronous Code Division Multiple Access，时分同步码分多址))、4G(如FDD LTE、TDD LTE)以及New RAT(Radio Access Technology，无线接入技术)系统，例如5G系统等。
本申请实施例中所描述的终端102将以一般意义上的UE来介绍。此外，终端102也可以称为移动台、接入终端、用户单元、用户站、移动站、远方站、远程终端、移动设备、用户终端、用户设备、无线通信设备、用户代理或用户装置等。用户设备可以是蜂窝电话、无绳电话、会话启动协议(英文：Session Initiation Protocol，SIP)电话、无线本地环路(英文：WirelessLocal Loop，WLL)站、个人数字处理(英文：Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及5G网络中的移动台或者未来演进的公共陆地移动网(英文：Public LandMobile Network，PLMN)网络中的用户设备等。此外，在本申请实施例中，终端102还可以包括中继(英文：Relay)等其他能够和网络测设备101(例如，基站)进行数据通信的设备。
图2是本申请实施例提供的另一种应用场景的示意图。图2示出了高密度传输点(Transmission/Reception Point，TRP)构成的超级小区(hypercell)。如图2所示，在高密度TRP传输场景中，一个终端102可以与多个传输点通信，形成以用户设备为中心的通信系统(UE-cellcenter-like)。通常，可以将位置上相邻的多个传输点划分成一个组，形成附图中圆圈所示的一组传输点，可称为一个TRP组(TRP Set)，或者一个协作传输集合。需要说明的，TRP组的划分方式不限于依据位置的划分方式，还可以是其他划分方式，例如将相关性 强的TRP划分为一组，本申请实施例不做限制。
具体实现中，传输点可以是GSM系统或CDMA系统中的基站(Base TransceiverStation，BTS)，也可以是WCDMA系统中的基站(NodeB)，还可以是LTE系统中的演进型基站(Evolved Node B，eNB或eNodeB)，或者5G网络中的基站、微型基站等网络设备，本申请实施例对此并不限定。
可选的，在本申请实施例中，各传输点可以为各协作的TRP(Transmission/Receiption Point)或者可以为各协作的天线阵面(panel)。
在本申请实施例中，多个TRP/panel进行协作传输的情况下，不同TRP/panel发送的信号可能具有相对独立的大尺度特征，例如平均时延、时延扩展、平均多普勒偏移、多普勒扩展以及空域接收参数等。因此在NR系统中，将两个或多个参考信号信道大尺度参数一致的情况称为QCL(Quasi Co-Loacted，准共址)。反之，则称为非QCL。
可选的，在本申请实施例中，所述DMRS port group中各DMRS端口具有QCL关系，即在一个组中的各DMRS端口QCL。
可选的，在本申请实施例中，相同CDM(Code Division Multiplexing，码分复用)组中的DMRS端口也具有QCL关系。
可选的，在本申请实施例中，每个数据信道最多支持两个DMRS port group。
可选的，在本申请实施例中，一个DMRS port group可以通过一个传输点传输，也可以通过两个传输点传输，两个传输点对应的DMRS端口也具有QCL关系。
根据图2所示的系统，终端102通过多个传输点进行传输，在多点协作CoMP传输方式中，现有技术不能提供一种适用于多点非相干传输技术(NC-JT)的CSI确定方法。
可选的，在本申请实施例中，以最多发送两个码字的情况为例，NC-JT大致可以分为以下几种情况：
情况一：每个下行物理下行控制信道PDCCH调度各自的下行共享信道PDSCH，且不同的PDSCH通过不同的TRP/panel传输，每个TRP/panel对应 一个DMRS port group；
情况二：1个PDCCH调度1个PDSCH。
可选的，在本申请实施例中，情况二又对应了三种传输情况，分别为：
Case 2-1：传输M个码字，且每个码字传输各对应于一个TRP/panel，每个TRP/panel对应一个DMRS port group；
Case 2-2：传输1个码字，且这1个码字映射到两个TRP/panel，每个TRP/panel对应一个DMRS port group；
Case 2-3：传输2个码字，其中一个码字映射到两个TRP/panel，另一个映射到一个TRP/panel，每个TRP/panel对应一个DMRS port group。
可选的，在本申请实施例中，情况一虽然是多点非相干传输技术，但是由于每个传输点不同的PDSCH通过不同的TRP/panel传输，与现有技术中的单点传输的情况类似，所以可以使用现有标准中定义的CSI反馈机制。
针对情况Case 2-1，本申请实施例提供了一种信道状态信息CSI的确定方法，如图3所示，具体包括：
步骤301，网络侧设备确定信道状态信息CSI的测量方式；
步骤302，网络侧设备根据测量方式确定N个CSI-RS资源；
步骤303，网络侧设备通过N个CSI-RS资源向终端发送CSI-RS信号；
步骤304，终端接收网络侧设备通过N个CSI-RS资源向终端发送的CSI-RS信号；
步骤305，终端根据N个CSI-RS资源承载的CSI-RS信号，确定M个码字对应的传输信道的CSI。
在步骤301中，网络侧设备在需要给终端配置CSI-RS资源时，首先获取CSI的测量方式，在本申请实施例中，测量方式为网络侧设备使用M个码字，通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个码字对应一个DMRS port group。
在本申请实施例中，网络侧设备确定的测量方式指的是网络侧想要与终端侧利用什么样的方式进行传输，网络侧需要终端侧上报测量方式对应的各 码字的CSI，网络侧通过上报的CSI来确定该传输方式的传输质量，并进一步确定是否按照该传输方式进行传输。
在本申请实施例中，网络侧设备假设的传输方式是，网络侧通过M个DMRS port group对应的传输点向终端传输M个码字，且每个DMRS port group分别对应一个码字。
在步骤302中，网络侧设备根据所述测量方式确定N个CSI-RS资源，N个CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
在本申请实施例中，虽然确定测量方式中是使用M个码字进行传输，但是网络侧设备配置了大于等于M个CSI-RS资源，以使终端能够根据大于等于M个CSI-RS资源，上报M个码字对应的传输信道的CSI，保证了上报的准确性，并且给终端提供了多种确定CSI的方法。
可选的，在本申请实施例中，每个CSI-RS资源与一个码字对应，也就是说，网络侧设备配置的N个CSI-RS资源分别对应N个码字。
网络侧设备配置了N个CSI-RS资源，在每个CSI-RS资源上传输CSI-RS信号，终端在每个CSI-RS资源上接收CSI-RS信号，并根据CSI-RS信号来确定M个码字对应的传输信道的CSI。
在步骤303中，网络侧设备向终端发送下行参考信号，可选的，在本申请实施例中，下行参考信号为CSI-RS信号。
在步骤305中，终端可以通过接收CSI-RS资源上承载的CSI-RS信号确定M个码字对应的传输信道的CSI，也可以通过接收CSI-RS资源上承载的CSI-RS信号以及CSI-RS资源对应的指示信息，确定M个码字对应的传输信道的CSI，所述CSI-RS资源对应的指示信息用于指示终端利用CSI-RS资源上承载的CSI-RS信号确定M个码字对应的传输信道的CSI。
可选的，在本申请实施例中，CSI-RS资源对应的指示信息可以是网络侧设备发送给终端的，也可以是终端自己获取的。
可选的，在本申请实施例中，若CSI-RS资源对应的指示信息是网络侧设备发送给终端的，则网络侧设备在确定了N个CSI-RS资源后，还需要确定N个CSI-RS资源对应的指示信息，并将N个CSI-RS资源对应的指示信息发送给终端。
可选的，在本申请实施例中，网络侧设备通过高层信令通知终端N个所述CSI-RS资源对应的指示信息。
可选的，在本申请实施例中，高层信令为RRC(Radio Resource Control，无线资源控制)信令。
可选的，在本申请实施例中，网络侧设备通过物理下行信令通知终端N个所述CSI-RS资源对应的指示信息。
可选的，在本申请实施例中，物理下行信令可以是由PDCCH(Physical Downlink Control Channel，物理下行控制信道)承载的DCI(Downlink Control Information，下行控制信息)。
同理，终端接收网络侧设备发送的CSI-RS测量资源参数，CSI-RS测量资源参数中包括N个CSI-RS资源对应的指示信息；或者
终端接收网络侧设备发送的高层信令，高层信令中包括N个CSI-RS资源对应的指示信息；或者
终端接收网络侧设备发送的物理下行信令，物理下行信令中包括N个CSI-RS资源对应的指示信息。
可选的，在本申请实施例中，由于终端获取到N个CSI-RS资源后，需要测量码字对应的传输信道的信道估计值，和/或估计终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，和/或终端估计所述终端受到的噪声和/或估计所述终端受到的其他干扰的干扰估计值，所以网络侧设备确定的N个CSI-RS资源对应的指示信息包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个，且第一指示信息用于指示终端估计每个CSI-RS资源对应的码字对应的传输信道的信道估计值，第二指示信息用于指示终端估计终端在接收其他CSI-RS资源对应的 码字时受到的CSI-RS资源对应的码字所产生的干扰的干扰估计值，第三指示信息用于指示终端估计终端受到的其他干扰的干扰估计值。
上述其他CSI-RS资源指除N个CSI-RS资源外的资源。
在本申请实施例中，终端在接收其他CSI-RS资源对应的码字时受到的CSI-RS资源对应的码字所产生的干扰指的是终端在接收其他CSI-RS资源对应的码字的同时，还接收到了该CSI-RS资源对应的码字，则该CSI-RS资源对应的码字的传输会产生对其他CSI-RS资源对应的码字的干扰。
在本申请实施例中，其他干扰指的是除接收其他CSI-RS资源对应的码字时受到的该CSI-RS资源对应的码字所产生的干扰的干扰估计值以外的其他干扰，例如，在图2中，TRP1发送给其他终端的数据就是其他干扰。
可选的，在本申请实施例中，第三指示信息用于指示所述终端估计所述终端受到的每一层的其他干扰。
在本申请实施例中，终端收到的噪声指的是移动通信中的噪声，可以分为内部噪声和外部噪声，内部噪声主要指终端接收机本身的固有噪声，外部噪声主要是自然噪声和人为噪声。
可选的，在本申请实施例中，网络侧设备根据所述测量方式确定N个CSI-RS资源后，网络侧设备配置了一个CSI-RS配置信息，CSI-RS配置信息用于指示终端如何利用CSI-RS资源测量以及上报哪些CSI信息给网络侧设备。
CSI-RS配置信息中包括一个CSI-RS测量资源参数(Resource setting)以及与所述CSI-RS测量资源参数对应的上报反馈参数(Report setting)，所述CSI-RS测量资源参数用于配置CSI-RS资源的参数，所述上报反馈参数用于配置终端反馈给网络侧设备的参数内容。
上报反馈参数包括以下参数的配置：CSI反馈参数(report quantity)、码本配置、CSI反馈的时域行为、PMI和CQI的频域颗粒度、以及测量约束配置。其中CSI反馈参数用于指示是由UE进行波束管理相关的反馈，还是由CSI获取相关的反馈。
可选的，在本申请实施例中，N个CSI-RS资源是通过一个CSI-RS资源 集合(Resource set)管理的，而CSI-RS资源集合(Resource set)上的CSI-RS资源的配置信息是通过CSI-RS测量资源参数(Resource setting)来配置的。
网络侧设备在确定CSI-RS配置信息后，将CSI-RS配置信息发送给终端，终端在获取到CSI-RS配置信息后，根据CSI-RS测量资源参数中的N个CSI-RS资源对应的指示信息确定N个CSI-RS资源的用途，根据上报反馈参数确定反馈的CSI的内容。
可选的，在本申请实施例中，网络侧设备还可以设置其他的CSI-RS配置信息，例如，网络侧设备配置了一个CSI-RS配置信息，CSI-RS配置信息中包括三个CSI-RS测量资源参数以及与所述三个CSI-RS测量资源参数对应的一个上报反馈机制等，在此不做赘述。
可选的，终端还可以在接收到N个CSI-RS资源后获取N个CSI-RS资源对应的指示信息，终端可以根据收到的所述CSI-RS资源的数量、CSI-RS资源的数量与指示信息的绑定关系确定N个所述CSI-RS资源对应的指示信息，本申请实施例中的绑定关系是终端之前建立并保存的。
在步骤305中，终端根据接收到的N个CSI-RS资源，确定M个码字对应的传输信道的CSI，具体包括如下任意一个或多个：
针对每个CSI-RS资源，终端根据所述CSI-RS资源估计码字对应的传输信道的信道估计值；
针对每个CSI-RS资源，终端根据所述CSI-RS资源估计终端在接收其他CSI-RS资源对应的码字时，受到的CSI-RS资源对应的码字所产生的干扰的干扰估计值；
针对每个CSI-RS资源，终端根据所述CSI-RS资源估计终端收到的噪声；
针对每个CSI-RS资源，终端根据所述CSI-RS资源估计终端受到的其他干扰的干扰估计值。
也就是说，终端可以直接利用N个CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI。
同样的，终端也可以根据N个CSI-RS资源以及N个CSI-RS资源对应的 指示信息，确定M个码字对应的传输信道的信道状态信息CSI。
可选的，在本申请实施例中，终端可以获取部分指示信息，例如终端获取了第一指示信息，终端根据第一指示信息以及CSI-RS资源估计所述码字对应的传输信道的信道估计值，终端根据所述CSI-RS资源估计所述终端在接收其他CSI-RS资源对应的码字时，受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；终端根据所述CSI-RS资源估计所述终端收到的噪声；终端根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值。
可选的，在本申请实施例中，针对每个码字，所述CSI包括所述码字对应的CSI-RS资源对应的预编码矩阵指示PMI、所述码字对应的CSI-RS资源对应的秩指示RI以及所述码字对应的信道质量指示CQI。
也就是说，在本申请实施例中，终端向网络侧设备上报的是针对每个码字的PMI/RI/CQI。可选的，在本申请实施例中，终端可以根据上报反馈参数确定上报的内容，可以是全部上报，也可以是部分上报。
可选的，在本申请实施例中，PMI可以是高精度的PMI，也可以是低精度的PMI。
在本申请实施例中，终端根据N个CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI时，包括以下假设条件，即针对每个CSI-RS资源，终端假设经由CSI-RS资源对应的DMRS port group发送的CSI-RS资源对应的码字使用了与所述CSI-RS资源对应的PMI/RI，所述码字通过DMRS port group对应的传输点传输到终端。
也就是说，在本申请实施例中，终端在确定M个码字对应的传输信息的CSI时，终端接收了通过DMRS port group发送的码字，该码字与N个CSI-RS资源中的一个CSI-RS资源对应，且该码字的预编码使用了该CSI-RS资源对应的PMI/RI。
可选的，在本申请实施例中，针对Case2-1，每个码字对应一个CSI-RS资源，所以每个CSI-RS资源对应的PMI/RI也是每个码字对应的PMI/RI。在本申请实施例中，每个码字对应的PMI/RI是预先存储在终端中的。
在本申请上述实施例中，终端假设的情况如图2所示，即TRP1向终端发送码字，且TRP2没有向终端发送码字，或者TRP2向终端发送码字，且TRP1没有向终端发送码字，或者TRP1向终端发送码字，且TRP2向终端发送码字。
可选的，在本申请实施例中，假设条件还包括针对每个CSI-RS资源，终端假设在接收其他DMRS port group对应的码字时收到的DMRS port group对应的码字的干扰使用了CSI-RS资源对应的PMI/RI，所述码字通过DMRS port group对应的传输点传输到终端。
也就是说，在本申请实施例中，终端假设的情况指的是终端同时从至少两个DMRS port group接收码字，针对每个码字，另一个码字的传输就是对该码字传输的干扰。
如图2所示，TRP1向终端发送码字1，且TRP2向终端发送码字2，则终端在接收码字1时，码字2的传输就是对码字1的干扰，同样的，终端在接收码字2时，码字1的传输就是对码字2的干扰。
当然，在本申请实施例中，终端还假设了在传输过程中接受到了其他干扰和/或噪声。
可选的，在本申请实施例中，终端根据N个CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括：
终端根据N个CSI-RS资源确定N个码字对应的传输信道的信道状态信息CSI；
终端上报M个码字对应的传输信道的信道状态信息CSI；
或者
终端根据N个CSI-RS资源中的M个CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
终端上报M个码字对应的传输信道的信道状态信息CSI。
也就是说，在本申请实施例中，终端可以在获取N个CSI-RS资源中选出M个CSI-RS资源，M个CSI-RS资源对应M个码字，终端根据M个CSI-RS资源确定了M个码字对应的传输信道CSI；或者，终端可以根据N个CSI-RS 资源确定N个个码字对应的传输信道CSI，然后选择M个码字对应的传输信道CSI上报。
为了更好的解释本申请实施例提供的一种信道状态信息的确定方法，在此举例说明，如图4所示，在本申请实施例中，测量方式为网络侧设备使用2个码字通过2个解调参考信号端口组DMRS port group对应的传输点进行传输，其中每个所述码字对应一个DMRS port group；
步骤401，网络侧设备根据测量方式确定了两个CSI-RS资源，分别为Reource1以及Reource2；
步骤402，网络侧设备确定了两个CSI-RS资源对应的指示信息，具体为：
针对Resource 1:用于估计TRP/panel A到终端的信道；还可用于估计TRP/panel A发送的信号(码字A)对发送自TRP/panel B的信号(码字B)造成的干扰；还可用于估计其他干扰和/或噪声。
针对Resource 2：用于估计TRP/panel B到终端的信道；该信道还可用于估计TRP/panel B发送的信号(码字B)对发送自TRP/panel A的信号(码字A)造成的干扰；还可用于估计其他干扰和/或噪声。
步骤403，网络侧设备配置了一个CSI-RS配置信息，CSI-RS配置信息中包括一个CSI-RS测量资源参数(Resource setting)以及CSI-RS测量资源参数对应的上报反馈参数(Report setting)，通过一个CSI-RS资源集合(Resource set)管理N个CSI-RS资源，而通过CSI-RS测量资源参数(Resource setting)来配置CSI-RS资源集合(Resource set)上的CSI-RS资源的配置信息，如图5所示；
步骤404，网络侧设备将两个CSI-RS资源以及CSI-RS配置信息通过高层信令发送给终端；
步骤405，终端接收网络侧设备发送的两个CSI-RS资源以及CSI-RS资源的配置信息；
步骤406，终端根据Resource 1以及Resource 1对应的指示信息估计TRP/panel A到终端的信道H of TRPA；
步骤407，终端根据Resource 1以及Resource 1对应的指示信息估计其他干扰和/或噪声(I+N)；
步骤408，终端根据Resource 2以及Resource 2对应的指示信息估计TRP/panel B(DMRS port group B)发送的信号(码字B)对发送自TRP/panel A的信号(码字A)造成的干扰(Interference from TRP/panel B)；
步骤409，终端根据H of TRPA、I+N以及Interference from TRP/panel B确定了经由DMRS port group A(对应于TRP/panel A)发送的信号(码字A)的PMI/RI/CQI(记为PMI_A/RI_A/CQI_A)，以及
经由DMRS port group B(对应于TRP/panel B)发送的信号(码字B)的PMI/RI/CQI(记为PMI_B/RI_B/CQI_B)，并且终端在确定上述CSI时进行了如下假设：
经由DMRS port group A(对应于TRP/panel A)发送的信号(码字A)使用了码字A对应的PMI_A/RI_A，并通过TRP/panel A到终端的信道(由Resource 1估计得到)到达所述终端；
经由DMRS port group B(对应于TRP/panel B)发送的信号(码字B)使用了码字B对应的PMI_B/RI_B，并通过TRP/panel B到终端的信道(由Resource 2估计得到)到达所述终端；
且终端假设码字A受到的来自于码字B的干扰，使用了码字B对应的PMI_B/RI_B，并通过TRP/panel B到终端的信道(由Resource 2估计得到)到达终端；
码字B受到的来自于码字A的干扰使用了PMI_A/RI_A对应的预编码矩阵，并通过TRP/panel A到终端的信道(由resource 1估计得到)到达终端；
且终端还假设受到了其他干扰/噪声；
步骤410，终端将PMI_A/RI_A/CQI_A以及PMI_B/RI_B/CQI_B反馈给网络侧设备。
在本申请实施例中，步骤406-步骤408的前后顺序可以调换。
基于图1的结构，本申请实施例还提供一种信道状态信息的确定方法， 如图6所示，包括：
步骤601，网络侧设备确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
步骤602，所述网络侧设备根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
本申请实施例还提供一种信道状态信息的确定装置，如图7所示，包括：
测量方式确定单元701，用于确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
资源确定单元702，用于根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
基于相同的原理，本申请还提供一种电子设备，如图8所示，包括:
包括处理器801、存储器802、收发机803、总线接口804，其中处理器801、存储器802与收发机803之间通过总线接口804连接；
所述处理器801，用于读取所述存储器802中的程序，执行下列方法：
确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输 信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
本申请实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一项信道状态信息的确定方法。
本申请还提供一种信道状态信息的确定方法，如图9所示，包括：
步骤901，终端接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
步骤902，所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
本申请实施例还提供一种信道状态信息的确定装置，如图10所示，包括：
接收单元1001，用于接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
CSI确定单元1002，用于根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
基于相同的原理，本申请还提供一种电子设备，如图11所示，包括:
包括处理器1101、存储器1102、收发机1103、总线接口1104，其中处理器1101、存储器1102与收发机1103之间通过总线接口1104连接；
所述处理器1101，用于读取所述存储器1102中的程序，执行下列方法：
接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
本申请实施例提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，使所述计算机执行上述任一项信道状态信息的确定方法。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (20)

  1. 一种信道状态信息的确定方法，其特征在于，所述方法包括：
    网络侧设备确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
    所述网络侧设备根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
  2. 根据权利要求1所述的方法，其特征在于，所述网络侧设备根据所述测量方式确定N个CSI-RS资源后，还包括：
    所述网络侧设备确定N个所述CSI-RS资源对应的指示信息，N个所述CSI-RS资源对应的指示信息用于指示所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
    所述网络侧设备将所述N个所述CSI-RS资源对应的指示信息发送给所述终端。
  3. 根据权利要求2所述的方法，其特征在于，所述网络侧设备将N个所述CSI-RS资源对应的指示信息发送给所述终端，包括：
    所述网络侧设备将N个所述CSI-RS资源对应的指示信息加入到CSI-RS测量资源参数中，所述网络侧设备将所述CSI-RS测量资源参数发送给所述终端，其中所述CSI-RS测量资源参数用于指示所述终端按照所述CSI-RS测量资源参数测量；或者
    所述网络侧设备通过高层信令通知所述终端N个所述CSI-RS资源对应的指示信息；或者
    所述网络侧设备通过物理下行信令通知所述终端N个所述CSI-RS资源对 应的指示信息。
  4. 根据权利要求3所述的方法，其特征在于，所述网络侧设备根据所述测量方式确定N个CSI-RS资源后，还包括：
    所述网络侧设备确定一个CSI-RS配置信息，所述CSI-RS配置信息中包括一个CSI-RS测量资源参数以及与所述CSI-RS测量资源参数对应的上报反馈参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息，所述上报反馈参数用于指示终端测量CSI后上报内容以及反馈方式；
    所述网络侧设备将所述CSI-RS配置信息发送给所述终端。
  5. 根据权利要求2所述的方法，其特征在于，N个所述CSI-RS资源对应的指示信息包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
    针对每个所述CSI-RS资源，所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
    针对每个所述CSI-RS资源，所述第二指示信息用于指示所述终端估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
    针对每个所述CSI-RS资源，所述第三指示信息用于指示所述终端估计所述终端收到的噪声；和/或
    所述第三指示信息用于指示所述终端估计所述终端受到的其他干扰的干扰估计值。
  6. 一种信道状态信息的确定方法，其特征在于，所述方法包括：
    终端接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
    所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信 道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
  7. 根据权利要求6所述的方法，其特征在于，所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括如下任意一个或多个：
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述码字对应的传输信道的信道估计值；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端收到的噪声；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值。
  8. 根据权利要求7所述的方法，其特征在于，所述方法还包括：
    所述终端获取N个所述CSI-RS资源对应的指示信息，所述指示信息中包括第一指示信息、第二指示信息、第三指示信息中任一个或任多个；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述码字对应的传输信道的信道估计值，包括：
    所述终端根据所述第一指示信息以及所述CSI-RS资源估计所述码字对应的传输信道的信道估计值，其中所述第一指示信息用于指示所述终端估计所述码字对应的传输信道的信道估计值；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源，估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，包括：
    所述终端根据所述第二指示信息以及所述CSI-RS资源，估计所述终端在 接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值，其中所述第二指示信息用于指示所述终端估计所述终端在接收其他CSI-RS资源对应的码字时受到的所述CSI-RS资源对应的码字所产生的干扰的干扰估计值；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端收到的噪声，包括：
    所述终端根据所述第三指示信息以及所述CSI-RS资源估计所述终端收到的噪声，其中所述第三指示信息还用于指示所述终端估计所述终端收到的噪声；
    针对每个所述CSI-RS资源，所述终端根据所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值，包括：
    所述终端根据所述第三指示信息以及所述CSI-RS资源估计所述终端受到的其他干扰的干扰估计值，其中所述第三指示信息还用于指示所述终端估计所述终端受到的其他干扰的干扰估计值。
  9. 根据权利要求8所述的方法，其特征在于，所述终端获取N个所述CSI-RS资源对应的指示信息，包括：
    所述终端接收所述网络侧设备发送的CSI-RS测量资源参数，所述CSI-RS测量资源参数中包括N个所述CSI-RS资源对应的指示信息；或者
    所述终端接收所述网络侧设备发送的高层信令，所述高层信令中包括N个所述CSI-RS资源对应的指示信息；或者
    所述终端接收所述网络侧设备发送的物理下行信令，所述物理下行信令中包括N个所述CSI-RS资源对应的指示信息。
  10. 根据权利要求8所述的方法，其特征在于，所述终端获取N个所述CSI-RS资源对应的指示信息，包括：
    所述终端根据接收到的所述CSI-RS资源的数量、CSI-RS资源的数量与指示信息的绑定关系确定N个所述CSI-RS资源对应的指示信息。
  11. 根据权利要求6-10任一项所述的方法，其特征在于，针对每个码字， 所述CSI包括：
    所述码字对应的CSI-RS资源对应的预编码矩阵指示PMI、所述码字对应的CSI-RS资源对应的秩指示RI以及所述码字对应的信道质量指示CQI。
  12. 根据权利要求11所述的方法，其特征在于，所述终端根据N个所述CSI-RS资源确定M个所述码字对应的传输信道的信道状态信息CSI，包括：
    所述终端根据假设条件以及N个所述CSI-RS资源确定M个所述码字对应的传输信道的信道状态信息CSI；
    其中，所述假设条件为：
    针对每个所述CSI-RS资源，所述终端假设经由所述CSI-RS资源对应的DMRS port group发送的所述CSI-RS资源对应的码字，使用了与所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
  13. 根据权利要求12所述的方法，其特征在于，所述假设条件还包括：
    针对每个所述CSI-RS资源，所述终端假设在接收其他DMRS port group对应的码字时受到的所述DMRS port group对应的码字所产生的干扰，使用了所述CSI-RS资源对应的PMI/RI，通过所述DMRS port group对应的传输点传输到所述终端。
  14. 根据权利要求6所述的方法，其特征在于，所述终端根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，包括：
    所述终端根据N个所述CSI-RS资源确定N个码字对应的传输信道的信道状态信息CSI；
    所述终端上报M个码字对应的传输信道的信道状态信息CSI；
    或者
    所述终端根据N个所述CSI-RS资源中的M个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI；
    所述终端上报M个码字对应的传输信道的信道状态信息CSI。
  15. 一种信道状态信息的确定装置，其特征在于，包括：
    测量方式确定单元，用于确定信道状态信息CSI的测量方式，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
    资源确定单元，用于根据所述测量方式确定N个CSI-RS资源，N个所述CSI-RS资源用于终端确定M个码字对应的传输信道的信道状态信息CSI，所述码字对应的传输信道为所述码字的传输点到所述终端的传输通道，所述M小于等于N。
  16. 一种信道状态信息的确定装置，其特征在于，包括：
    接收单元，用于接收网络侧设备发送的N个CSI-RS资源，N个所述CSI-RS资源是网络侧设备根据信道状态信息CSI的测量方式确定的，所述测量方式为所述网络侧设备使用M个码字通过M个解调参考信号端口组DMRS port group对应的传输点进行传输，其中M大于等于1，每个所述码字对应一个DMRS port group；
    CSI确定单元，用于根据N个所述CSI-RS资源确定M个码字对应的传输信道的信道状态信息CSI，所述传输信道为所述码字的传输点到终端的传输通道，其中M小于等于N。
  17. 一种电子设备，其特征在于，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求1-5任一所述的方法。
  18. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行权利要求1-5任一所述方法。
  19. 一种电子设备，其特征在于，包括：
    至少一个处理器；以及，
    与所述至少一个处理器通信连接的存储器；其中，
    所述存储器存储有可被所述至少一个处理器执行的指令，所述指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行权利要求6-14任一所述的方法。
  20. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令用于使所述计算机执行权利要求6-14任一所述方法。
PCT/CN2019/099687 2018-09-21 2019-08-07 一种信道状态信息的确定方法及装置 WO2020057284A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020217011836A KR102524774B1 (ko) 2018-09-21 2019-08-07 채널 상태 정보를 결정하기 위한 방법 및 장치
EP19863835.5A EP3869882A4 (en) 2018-09-21 2019-08-07 METHOD AND APPARATUS FOR DETERMINING CHANNEL STATE INFORMATION
US17/275,654 US20220045730A1 (en) 2018-09-21 2019-08-07 Method and apparatus for determining channel state information
JP2021516385A JP7216813B2 (ja) 2018-09-21 2019-08-07 チャネル状態情報を決定するための方法および装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811108580.0 2018-09-21
CN201811108580.0A CN110943769B (zh) 2018-09-21 2018-09-21 一种信道状态信息的确定方法及装置

Publications (1)

Publication Number Publication Date
WO2020057284A1 true WO2020057284A1 (zh) 2020-03-26

Family

ID=69888250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/099687 WO2020057284A1 (zh) 2018-09-21 2019-08-07 一种信道状态信息的确定方法及装置

Country Status (6)

Country Link
US (1) US20220045730A1 (zh)
EP (1) EP3869882A4 (zh)
JP (1) JP7216813B2 (zh)
KR (1) KR102524774B1 (zh)
CN (1) CN110943769B (zh)
WO (1) WO2020057284A1 (zh)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107005293A (zh) * 2014-12-02 2017-08-01 三星电子株式会社 用于部分预编码的信道状态信息参考信号和信道状态信息反馈的下行链路信令的方法和装置
CN107733502A (zh) * 2016-08-11 2018-02-23 株式会社Ntt都科摩 参考信号发送和反馈方法、基站以及移动台

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104106223A (zh) * 2012-02-11 2014-10-15 Lg电子株式会社 报告信道状态信息的方法、其支持方法及所述方法的设备
CN104272609B (zh) * 2012-09-16 2017-11-24 Lg 电子株式会社 在支持协作传输的无线通信系统中接收数据的方法和设备
CN106209330B (zh) * 2015-05-08 2019-06-28 电信科学技术研究院 一种下行数据重复传输方法及设备
CN106470088B (zh) * 2015-08-14 2021-06-15 中兴通讯股份有限公司 Dmrs端口或映射关系的通知、确定方法及装置
CN107370559B (zh) * 2016-05-13 2022-04-29 中兴通讯股份有限公司 信道状态信息的反馈方法及装置
US10448408B2 (en) * 2016-08-04 2019-10-15 Samsung Electronics Co., Ltd. Method and apparatus for coordinating multi-point transmission in advanced wireless systems
US10631329B2 (en) * 2016-08-12 2020-04-21 Qualcomm Incorporated Non-coherent joint transmission techniques
CN107733618A (zh) * 2016-08-12 2018-02-23 中兴通讯股份有限公司 测量导频的发送方法、信道状态信息的反馈方法及装置
CN108289004B (zh) * 2017-01-09 2021-11-26 华为技术有限公司 一种信道状态信息测量上报的配置方法及相关设备
CN114844608A (zh) * 2017-02-17 2022-08-02 华为技术有限公司 多传输节点传输方法及通信装置
WO2018229078A1 (en) * 2017-06-16 2018-12-20 Telefonaktiebolaget Lm Ericsson (Publ) Channel state information for reference signals in a wireless communication system
JP2021044598A (ja) * 2017-12-27 2021-03-18 シャープ株式会社 基地局装置、端末装置および通信方法
US11552687B2 (en) * 2018-06-15 2023-01-10 Nec Corporation CSI reporting for multiple TRP transmission/panel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107005293A (zh) * 2014-12-02 2017-08-01 三星电子株式会社 用于部分预编码的信道状态信息参考信号和信道状态信息反馈的下行链路信令的方法和装置
CN107733502A (zh) * 2016-08-11 2018-02-23 株式会社Ntt都科摩 参考信号发送和反馈方法、基站以及移动台

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "Remaining Issues on Beam Management", 3GPP TSG RAN WG1 MEETING #92BIS, R1-1804714, 20 April 2018 (2018-04-20), XP051426981 *
See also references of EP3869882A4 *
ZTE: "Enhancements to QCL assumptions for DM-RS antenna ports", 3GPP TSG RAN WG1 NR #88BIS, RL-1704423, 7 April 2017 (2017-04-07), XP051242570 *

Also Published As

Publication number Publication date
JP2022500954A (ja) 2022-01-04
CN110943769A (zh) 2020-03-31
EP3869882A1 (en) 2021-08-25
JP7216813B2 (ja) 2023-02-01
US20220045730A1 (en) 2022-02-10
CN110943769B (zh) 2022-04-12
KR102524774B1 (ko) 2023-04-21
KR20210058960A (ko) 2021-05-24
EP3869882A4 (en) 2022-01-26

Similar Documents

Publication Publication Date Title
CN111201733B (zh) 参考信号的指示方法、用户设备及接入点
US10951332B2 (en) Method and apparatus for coordinated multipoint (CoMP) communication using quasi-co-location
EP3550757B1 (en) Resource indication method and device
US11323222B2 (en) Communication method, and apparatus
CN108365997B (zh) 一种信息传输方法和装置
CN113068260B (zh) 发送上行信号的方法和设备
WO2020029233A1 (zh) 上报信道状态信息的方法和装置
US11671197B2 (en) Configuration method for channel state information measurement and related device
EP3739788B1 (en) Signal receiving device and communication system
WO2017113113A1 (zh) 终端设备、网络设备、数据传输方法和无线通信系统
CN110943943B (zh) 一种信道状态信息的确定方法及装置
CN110943814B (zh) 一种信道状态信息的确定方法及装置
CN110943804B (zh) 一种信道状态信息的确定方法及装置
WO2022028711A1 (en) Apparatus for csi reporting overhead reduction via joint csi report quantization and encoding
CN110603743B (zh) 下行信号传输的方法、终端设备和网络设备
WO2020057284A1 (zh) 一种信道状态信息的确定方法及装置
CN114759964A (zh) 一种信息处理方法、装置及网络侧设备
EP3490171A1 (en) Measurement method and apparatus
CN111741482B (zh) 一种确定和获得下行干扰的方法、终端设备及网络设备
CN116980096A (zh) 信息传输方法、装置、终端、网络侧设备及介质
CN117200841A (zh) 波束极化方向确定方法、装置及存储介质
CN117640036A (zh) Csi报告方法、终端设备、网络设备及存储介质
CN117254889A (zh) 波束信息的确定方法、装置及通信设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19863835

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021516385

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20217011836

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2019863835

Country of ref document: EP

Effective date: 20210421