WO2019214504A1 - Procédé de transmission de données, dispositif et support de stockage lisible par ordinateur - Google Patents

Procédé de transmission de données, dispositif et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2019214504A1
WO2019214504A1 PCT/CN2019/085135 CN2019085135W WO2019214504A1 WO 2019214504 A1 WO2019214504 A1 WO 2019214504A1 CN 2019085135 W CN2019085135 W CN 2019085135W WO 2019214504 A1 WO2019214504 A1 WO 2019214504A1
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WO
WIPO (PCT)
Prior art keywords
csi
csi report
update priority
terminal device
longer
Prior art date
Application number
PCT/CN2019/085135
Other languages
English (en)
Chinese (zh)
Inventor
金黄平
毕晓艳
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2019214504A1 publication Critical patent/WO2019214504A1/fr

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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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04B7/06—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
    • H04B7/0632—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
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application relates to the field of communications and, more particularly, to a method, apparatus, and computer readable storage medium for transmitting data.
  • Massive MIMO massive multiple input multiple output
  • NR new radio access technology
  • a network device can transmit data to an end device through an antenna array composed of a plurality of transmitting antennas, thereby improving system throughput.
  • the network device needs to know channel state information (CSI).
  • the terminal device may generate a CSI report based on the CSI configuration information sent by the network device, and report the CSI report to the network device.
  • the first aspect provides a method for transmitting data, where the method includes: the terminal device selects M CSI reports from the N channel state information CSI reports to update according to a preset rule, where N is a positive integer greater than 1. M is a positive integer greater than or equal to 1 and less than or equal to N; the terminal device sends the N CSI reports to the network device, and the M CSI reports are updated in the N CSI reports.
  • the CSI report may also be referred to as CSI report, CSI reporting, and CSI reporting setting, which is not specifically limited in this application.
  • the CSI report that the terminal device feeds back to the network device in this embodiment may include, but is not limited to, at least one of the following information: precoding matrix indication PMI, rank indication RI, channel quality indicator CQI, CSI-RS Indicates CRI information, flow indication LI information.
  • the terminal device may update the M CSI reports in the N CSI reports, and the terminal device may update the M CSI reports to be understood as the processing capability of the terminal device.
  • the specific implementation manner in which the terminal device can update the M CSI reports from the N CSI reports to update the terminal device according to the preset rule is not specifically limited.
  • the terminal device may select, based on the rule of the non-multiplexed CSI report, that the update priority of the CSI report multiplexed with the uplink transmission data may be updated from the N CSI reports.
  • the terminal device may select, based on the CSI calculation time, a rule that the update priority of the CSI report may be higher, and select M CSI reports from the N CSI reports for updating.
  • the terminal device may further select, according to the foregoing preset rule and the existing CSI priority rule, M CSI reports from the N CSI reports for updating.
  • the time and sequence of feeding back N CSI reports to the terminal device in the embodiment of the present application are not specifically limited.
  • the terminal device may feed back the CSI report to the network device after calculating a CSI that needs to be updated.
  • the terminal device may further report the N CSI reports to the network device after calculating the M CSIs that need to be updated.
  • the embodiment of the present application does not specifically limit the type of the CSI report that the terminal device feeds back to the network device, and may be a periodic CSI report, a non-periodic CSI report, or a semi-persistent CSI report.
  • the terminal device may select a partial CSI report to update from multiple CSI reports that need to be reported according to its processing capability, so as to be adapted to its processing capability.
  • the preset rule includes: the CSI report multiplexed with the uplink transmission data has a higher update priority than the non-multiplexed CSI report.
  • the network device may configure the CSI report reported by multiplexing with the uplink data sent by the terminal device in advance.
  • the CSI report reported by multiplexing with the uplink data also needs to occupy a certain resource and calculation time.
  • the terminal device can select M CSI reports from the N CSI reports for updating, the priority data can be preferentially updated and multiplexed with the uplink data. Reported CSI report.
  • the preset rule includes: the longer the CSI calculation time, the higher the update priority of the CSI report.
  • the more channel measurement resources CMR involved in calculating the CSI the higher the update priority of the CSI report.
  • type I single panel codebook characterizes the channel with low accuracy, but has the characteristics of low feedback overhead, and is suitable for users with low signal processing capability.
  • Type II single-panel codebook is a high-precision codebook with high overhead, which is suitable for users with high signal processing capability.
  • the priority of the type II codebook is higher than the priority of the type I codebook.
  • the terminal device may preferentially update the type II codebook during the process of selecting M CSI reports for updating from the N CSI reports.
  • the greater the feedback overhead the longer the CSI is calculated.
  • the longer the terminal device calculates the CSI the more information the terminal device can acquire, and the more accurate the acquired information.
  • the larger the triggering offset the higher the update priority of the CSI report.
  • the terminal device may combine at least one of the following priority rules with the existing CSI priority, and may select M CSI reports from the N CSI reports for updating: CSI report multiplexed with the uplink transmission data.
  • the update priority may be higher than the non-multiplexed CSI report, and the longer the CSI calculation time, the higher the update priority of the CSI report may be.
  • the method on the network device side described in the second aspect corresponds to the method on the terminal device side in the first aspect, and the method on the network device side can refer to the description on the terminal device side to avoid repetition, and the detailed description is omitted here as appropriate.
  • the preset rule includes: the CSI report multiplexed with the uplink transmission data has a higher update priority than the non-multiplexed CSI report.
  • the terminal device may combine at least one of the foregoing priority rules with an existing CSI priority, and select M CSI reports from the N CSI reports for updating.
  • the larger the triggering offset the higher the update priority of the CSI report.
  • a fourth aspect provides a device for transmitting data, where the device includes: a transceiver unit, configured to:
  • the processing unit is configured to determine, according to a preset rule, the updated M CSI reports from the received N CSI reports, where M is greater than A positive integer equal to 1 and less than or equal to N.
  • the larger the triggering offset the higher the update priority of the CSI report.
  • the terminal device may combine at least one of the foregoing priority rules with an existing CSI priority, and select M CSI reports from the N CSI reports for updating.
  • a chip comprising: a memory, a processor, and a transceiver, wherein the memory is used to store a program; the processor is configured to execute a program stored in the memory, when the program is executed, the processor passes the The transceiver performs the method of any of the first aspect or the first aspect.
  • a processing apparatus comprising: a processor, configured to receive an input C channel report of C channel status information from a terminal device, where N is a positive integer greater than 1; the processor is configured to be based on a preset rule The updated M CSI reports are determined from the received N CSI reports, and M is a positive integer greater than or equal to 1 and less than or equal to N.
  • the transmitting end may be, for example, a network device, and the receiving end may be, for example, a terminal device, and the reference signal may be, for example, a channel state information reference signal (CSI-RS);
  • the transmitting end may be a terminal device, and the receiving end may be, for example, a network device, and the reference signal may be, for example, a sounding reference signal (SRS); and a device to device (D2D) data transmission.
  • the transmitting end can be, for example, a terminal device, and the receiving end can also be a terminal device, for example, the reference signal can be, for example, an SRS.
  • the CSI report that the terminal device feeds back to the network device in this embodiment may include, but is not limited to, at least one of the following information: precoding matrix indication PMI, rank indication RI, channel quality indicator CQI, CSI-RS Indicates CRI information, flow indication LI information.
  • the terminal device may preferentially update the CSI report with a long calculation time in the N CSI reports, and the terminal device may feed more and/or more accurate information to the network within a limited processing capability. device.
  • c can be used to represent an index of a serving cell
  • M s can be used to represent the maximum value of the upper LI parameters in the CSI report.
  • the preset rule includes: the longer the CSI calculation time, the higher the update priority of the CSI report.
  • the higher the CSI calculation delay the higher the update priority of the CSI report.
  • the greater the feedback overhead the higher the update priority of the CSI report.
  • FIG. 3 The transmission data device shown in FIG. 3 is a terminal device.
  • FIG. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure, which is convenient for understanding and illustration.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.

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

Abstract

La présente invention concerne un procédé de transmission de données, un dispositif et un support de stockage lisible par ordinateur. Le procédé comprend les étapes suivantes : un dispositif terminal sélectionne, sur la base d'une règle prédéfinie, M rapports d'informations d'état de canal (CSI) à partir de N rapports de CSI à mettre à jour, N étant un nombre entier positif supérieur à 1, et M étant un nombre entier positif supérieur ou égal à 1 et inférieur ou égal à N ; le dispositif terminal envoie les N rapports de CSI à un dispositif de réseau, les M rapports de CSI étant mis à jour dans les N rapports de CSI. Selon la solution technique fournie par la présente invention, le dispositif terminal peut sélectionner, en fonction de la capacité de traitement, certains rapports de CSI à partir de multiples rapports de CSI devant être rapportés pour une mise à jour, de façon à s'adapter à la capacité de traitement de ceux-ci.
PCT/CN2019/085135 2018-05-11 2019-04-30 Procédé de transmission de données, dispositif et support de stockage lisible par ordinateur WO2019214504A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810447325.2A CN110474664B (zh) 2018-05-11 2018-05-11 一种传输数据的方法、设备及计算机可读存储介质
CN201810447325.2 2018-05-11

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CN110474664A (zh) 2019-11-19

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