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WO2016112867A1 - Procédé de compte rendu d'informations d'état de canal, équipement d'utilisateur et système - Google Patents

Procédé de compte rendu d'informations d'état de canal, équipement d'utilisateur et système Download PDF

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Publication number
WO2016112867A1
WO2016112867A1 PCT/CN2016/071068 CN2016071068W WO2016112867A1 WO 2016112867 A1 WO2016112867 A1 WO 2016112867A1 CN 2016071068 W CN2016071068 W CN 2016071068W WO 2016112867 A1 WO2016112867 A1 WO 2016112867A1
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WIPO (PCT)
Prior art keywords
csi
subframe
reference signal
valid
target
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Ceased
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PCT/CN2016/071068
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English (en)
Chinese (zh)
Inventor
张福强
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2016112867A1 publication Critical patent/WO2016112867A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, user equipment, and system for reporting channel state information.
  • the determining unit is further used by the calculating unit according to the The other CSI processes respectively correspond to the reference signals transmitted in the valid subframes, and before the corresponding subframes after the valid subframes calculate the corresponding CSI, determine that the number of CSIs to be calculated in the specified target subframe is not greater than the The preset number threshold.
  • FIG. 3 is a schematic flowchart of a method for reporting channel state information according to a second embodiment of the present invention.
  • FIG. 3 is a schematic flowchart of a method for reporting channel state information according to a second embodiment of the present invention.
  • the method for reporting channel state information in the embodiment of the present invention may include at least:
  • the preset time interval may be 5 ms.
  • the preset time interval is the optimal value after the reliability and complexity of the CSI are weighed.
  • the periods of CSI-RS and CSI-IM can be 5ms, 10ms, 20ms, 40ms, and 80ms, and the shortest period of CSI-RS and CSI-IM is 5ms.
  • the preset time interval is less than 5 ms, the reference signal transmitted in the effective subframe includes the reference signal of each period, and the reliability of the CSI is high, but the calculated CSI is still relatively large, and the computational complexity of the CSI cannot be effectively solved.
  • any target subframe corresponding to the CSI process of the serving cell in the single-point transmission mode is a valid subframe
  • the reference signal transmitted in any target subframe is a serving cell-specific reference of the single-point transmission mode. signal.
  • the serving cell in the non-CoMP mode corresponds to a CSI process, and the reference signal is transmitted in each subframe of the CSI process, and each subframe needs to calculate CSI, and then each subframe in the CSI Process corresponding to the serving cell in the non-CoMP mode is determined to be valid.
  • a subframe where the reference signal may be a Cell-Specific Reference Signal (CRS) in a non-CoMP mode.
  • CRS Cell-Specific Reference Signal
  • the priority of the CSI process corresponding to the serving cell in the non-CoMP mode is higher than the priority of the CSI process corresponding to the serving cell in the CoMP mode.
  • the user equipment may determine that the subframes 0 to 19 are valid subframes, and the reference signal transmitted in the valid subframe may be referred to the gray portion corresponding to CC0 in FIG.
  • the CSI process corresponding to the CSI currently to be calculated in the subframe 4 includes the CSI Process of CC0, the CSI Process of CC1, and the CSI of CC1.
  • Process 2 and CSI Process 2 of CC2 the user equipment may determine that the number of CSIs to be currently calculated is greater than a preset number threshold.
  • the user equipment may determine that the multiple CSI processes are ranked according to the priority from high to low: CSI Process of CC0, CSI Process1 of CC1, CSI Process2 of CC1, and CSI Process2 of CC2, and the target CSI Process satisfying the preset number threshold includes CC0.
  • CSI Process and CSI Process1 of CC1, other CSI Processes include CSI Process2 of CC1 and CSI Process2 of CC2.
  • the channel state information corresponding to each of the multiple channel state information processes is fed back to the network side device.
  • the feedback unit 604 is configured to feed back the CSI corresponding to each of the multiple CSI processes to the network side device.
  • n is a positive integer greater than one.
  • the calculating unit 603 is further configured to: when the determining unit 605 determines that the result is negative, according to the CSI pair
  • the corresponding CSI Process respectively corresponds to the reference signal transmitted in the effective subframe, and the corresponding CSI is calculated.
  • the determining unit 602 is configured to: according to a priority of a process number of a CSI process corresponding to each of the multiple CSIs, and a serving cell corresponding to a CSI process with the same priority of the process number The priority of the serving cell number determines a target CSI Process that satisfies the preset number threshold.
  • the calculating unit 603 is further configured to: when the reference signal transmitted in the valid subframe corresponding to the reference signal includes CSI-IM, according to the CSI-IM transmitted in the valid subframe and the CSI transmitted recently before the valid subframe -RS, calculate the corresponding CSI.
  • the processor 701 determines, in the CSI process corresponding to the multiple CSIs, a target CSI process that meets the preset number threshold, which may be specifically:
  • the user equipment 804 is further configured to determine, according to a preset time interval and a preset rule, a valid subframe from a target subframe occupied by each of the multiple reference signals, where two phases corresponding to any reference signal The time interval between adjacent valid subframes is not less than the preset time interval.
  • the user equipment 804 is further configured to feed back the CSI corresponding to each of the multiple CSI processes to the network side device.
  • the communication system in the embodiment of the present invention may further include a second network side device 1002 and a third network side device 1003.
  • the user equipment 1004 needs to calculate the CSI corresponding to the four CSI processes in the subframe 4, the CSI corresponding to one CSI process in the subframe 5, and the CSI corresponding to the two CSI processes in the subframe 6.
  • the user equipment 1004 can calculate the CSI corresponding to at most two CSI processes in each subframe by determining the effective subframe and adopting the time division multiplexing, which can effectively reduce the computational complexity of the CSI.

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

Abstract

L'invention concerne un procédé de compte rendu d'informations d'état de canal, un équipement d'utilisateur et un système. Le procédé de compte rendu d'informations d'état de canal comporte les étapes consistant à: recevoir des signaux de référence multiples respectivement configurés par un dispositif côté réseau pour des processus multiples de CSI; déterminer, d'après un intervalle de temps prédéfini et une règle prédéfinie, une sous-trame effective parmi des sous-trames visées respectivement occupées par les signaux de référence multiples, un intervalle de temps entre deux sous-trames effectives voisines qui correspondent aux signaux de référence n'étant pas inférieur à l'intervalle de temps prédéfini; calculer, d'après les signaux de référence émis dans les sous-trames effectives correspondant respectivement aux signaux de référence multiples, des CSI correspondant respectivement aux processus multiples de CSI; et renvoyer les CSI au dispositif côté réseau. En utilisant la présente invention, la complexité de calcul des informations d'état de canal peut être atténuée et les coûts de matériel peuvent être réduits.
PCT/CN2016/071068 2015-01-16 2016-01-15 Procédé de compte rendu d'informations d'état de canal, équipement d'utilisateur et système Ceased WO2016112867A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510024151.5 2015-01-16
CN201510024151.5A CN104601286B (zh) 2015-01-16 2015-01-16 一种上报信道状态信息的方法、用户设备及系统

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WO2016112867A1 true WO2016112867A1 (fr) 2016-07-21

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WO (1) WO2016112867A1 (fr)

Families Citing this family (15)

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Publication number Priority date Publication date Assignee Title
CN104601286B (zh) * 2015-01-16 2018-03-27 华为技术有限公司 一种上报信道状态信息的方法、用户设备及系统
CN107113047A (zh) * 2015-08-14 2017-08-29 华为技术有限公司 一种反馈信道状态信息csi的方法及装置
WO2017075774A1 (fr) * 2015-11-04 2017-05-11 华为技术有限公司 Procédé d'évaluation de canal dégagé, et nœud de réseau
CN106941391B (zh) * 2016-01-04 2021-01-22 中兴通讯股份有限公司 信道状态信息csi上报的方法及装置
CN107623564B (zh) * 2016-07-13 2019-05-07 上海朗帛通信技术有限公司 一种无线通信中的方法和装置
JP7028895B2 (ja) * 2017-05-06 2022-03-02 エルジー エレクトロニクス インコーポレイティド 無線通信システムにおける端末のＤ２Ｄ（ｄｅｖｉｃｅ ｔｏ ｄｅｖｉｃｅ）動作方法及び前記方法を利用する端末
AU2017419378A1 (en) * 2017-06-23 2020-01-16 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless communication method and apparatus
CN109995491B9 (zh) 2017-12-29 2022-07-22 中兴通讯股份有限公司 测量参考信号的传输方法及装置
CN109302272B (zh) * 2018-02-13 2022-06-03 中兴通讯股份有限公司 Csi报告的发送、接收方法及装置、电子装置
CN110830215B (zh) * 2018-08-10 2021-03-30 华为技术有限公司 用于上报csi的方法和装置
CN111526538B (zh) * 2019-02-02 2022-04-05 成都华为技术有限公司 测量上报方法和通信装置
CN113271662B (zh) * 2020-02-14 2023-08-08 展讯通信（上海）有限公司 参考信号的时频资源配置方法、系统、电子设备和介质
MX2022013252A (es) * 2020-04-24 2022-11-14 Lenovo Singapore Pte Ltd Notificacion de informacion de estado de canal.
US20250047344A1 (en) * 2021-11-15 2025-02-06 Beijing Xiaomi Mobile Software Co., Ltd. Communication method and apparatus, and electronic device and storage medium
WO2025086281A1 (fr) * 2023-10-27 2025-05-01 华为技术有限公司 Procédé et appareil de communication

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CN104601286A (zh) * 2015-01-16 2015-05-06 华为技术有限公司 一种上报信道状态信息的方法、用户设备及系统

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