WO2022135241A1 - Procédé d'acquisition d'informations de phase, procédé de rétroaction, appareil, dispositif et support de stockage - Google Patents

Procédé d'acquisition d'informations de phase, procédé de rétroaction, appareil, dispositif et support de stockage Download PDF

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Publication number
WO2022135241A1
WO2022135241A1 PCT/CN2021/138469 CN2021138469W WO2022135241A1 WO 2022135241 A1 WO2022135241 A1 WO 2022135241A1 CN 2021138469 W CN2021138469 W CN 2021138469W WO 2022135241 A1 WO2022135241 A1 WO 2022135241A1
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WIPO (PCT)
Prior art keywords
information
phase
preset
sending
preset phase
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PCT/CN2021/138469
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English (en)
Chinese (zh)
Inventor
李颖
张德坤
孙国平
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中兴通讯股份有限公司
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Publication of WO2022135241A1 publication Critical patent/WO2022135241A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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

  • a mobile communication network system includes a base station side and a UE.
  • the base station side may be a device for communicating with the UE, and the base station side may include a base station, a repeater, or other network side devices with similar functions.
  • the UE may be a mobile terminal device or a non-mobile terminal device.
  • Mobile terminal devices can be mobile phones, tablet computers, notebook computers, PDAs, vehicle-mounted terminal devices, wearable devices, super mobile personal computers, netbooks, personal digital assistants, CPE, UFI (wireless hotspot devices), etc.; non-mobile terminal devices can be It is a personal computer, a TV, a teller machine or a self-service machine, etc.
  • the base station side may set a suitable scale of preset processing according to implementation complexity, memory conditions, and configured measurement resources, including but not limited to preset phase difference matrix and other processing methods. If the preset phase difference matrix is adopted, the construction method of the preset phase difference matrix is as follows:
  • the phase difference is 3 ⁇ /4
  • the phase difference between CP2 and CP3 is 3 ⁇ /4
  • the phase difference between CP3 and CP4 is 3 ⁇ /4
  • the phase difference between CP4 and CP5 is 3 ⁇ /4
  • the fifth group of preset phase data is (0 , ⁇ ,0, ⁇ ,0, ⁇ )
  • the phase difference between CP0 and CP1 is ⁇
  • the phase difference between CP1 and CP2 is ⁇
  • the phase difference between CP2 and CP3 is ⁇
  • the phase difference between CP3 and CP4 is ⁇
  • the phase difference between CP4 and CP4 is ⁇
  • the phase difference of CP5 is ⁇ (the positive and negative of the phase difference are relative).
  • the measurement resources are CSI-RS resources; wherein, the UE can obtain a channel state information (channel state information, CSI) report (report) through channel measurement on the CSI-RS resources, and the UE performs a CSI report on the The obtained CSI is encoded, and the CSI can be sent to the base station side, then the base station side can schedule data for the terminal device according to the received CSI.
  • CSI channel state information
  • Step S1211 correspondingly configure CSI-RS resources of multiple transceiver nodes according to multiple test phase information in the preset phase data;
  • Step S1212 sending CSI-RS resources to the UE through multiple transceiver nodes;
  • Step S1411 according to the CRI-CQI-PMI-RI information or the CRI-RSRP information, determine a corresponding set of preset phase data;
  • Step S1412 Determine, according to the set of preset phase data, the transmission phase information corresponding to each transceiver node for transmitting the traffic channel information.
  • the CRI fed back by the UE is the best beam, and a corresponding set of preset phase data can be determined by the beam number; transmit phase information for transmitting traffic channel information.
  • the test phase information corresponding to the value reported by the UE represents the value corresponding to the compensation of this phase. Therefore, based on this, it can be considered that the phase difference between the sending and receiving nodes is the negative value of this phase. Thereby, the transmission phase information is obtained.
  • the measurement resources are SSB resources
  • Step S1222 sending SSB resources to the UE through multiple transceiver nodes
  • step S1223 the above-mentioned steps S1221 and S1222 are sequentially performed repeatedly until the SSB resources corresponding to the multiple groups of preset phase data are sent.
  • the reported information is CRI-RSRP information
  • Step S1421 according to the CRI-RSRP information, determine the SSB resource index information corresponding to the strongest RSRP;
  • Step S1423 Determine, according to the set of preset phase data, transmission phase information corresponding to each transceiver node for transmitting traffic channel information.
  • step S1400 the determining, according to the reported information, the sending phase information for sending traffic channel information corresponding to each sending and receiving node, including:
  • Step S1431 according to the report information, determine a group of preset phase data corresponding to the report information;
  • Step S1432 Determine the multiple pieces of test phase information of the group of preset phase data as the transmit phase information corresponding to each transceiver node.
  • the second set of preset phase data is the transmission phase information corresponding to each transceiver node, that is, the phase difference between CP0 and CP1 is ⁇ /4, the phase difference between CP1 and CP2 is ⁇ /4, the phase difference between CP2 and CP3 is ⁇ /4, the phase difference between CP3 and CP4 is ⁇ /4, and the phase difference between CP4 and CP5 is ⁇ /4.
  • Subsequent base station side can send traffic channel information according to the sending phase information corresponding to each transceiver node.
  • step S1500 according to the sending phase information, sending traffic channel information to the UE through each transceiver node, including:
  • Step S1510 Adjust the phase of the data to be sent by each transceiver node according to the sending phase information, so as to send the traffic channel information to the UE in a coherent sending or quasi-coherent sending manner.
  • a coherent transmission or quasi-coherent transmission may be adopted.
  • the manner of sending the traffic channel information may be sent by compensating for the phase difference, so as to achieve a coherent or quasi-coherent sending manner.
  • coherence means that at the receiving end, the signals from multiple transceiver nodes are superimposed in phase, so that the signal strength is greater. Quasi-coherent means that it cannot be completely superimposed in phase, but there is also a large power gain.
  • the transmission traffic channel information of CP1 is rotated by 0 degrees, and the transmission traffic channel information of CP2 is rotated by minus 45 degrees, so that the signals sent by CP2 and CP1 are superimposed to realize
  • the coherent transmission method increases the signal strength, thereby improving the system performance.
  • Step S1520 Adjust the phase of the data to be sent by each transceiver node according to the sending phase information, so as to send the service channel information to the UE in the manner of sending the multi-stream service channel information.
  • the multi-stream effect can also be achieved by increasing the number of antennas of the transceiver node CP.
  • the method for obtaining phase information is applied to a multi-node transmission system of chain distribution, and can be applied to various scenarios, such as high-speed rail scenarios and indoor distribution. Obviously, it can also be applied to other distributed multi-node transmission systems.
  • the multiple transceiver nodes CP1 and CP2 are two transceiver nodes with the same cell PCI (Physical Cell Identifier, physical cell identifier), and user equipment UE is located in these two CPs
  • the coverage overlap area, CP1 and CP2 serve the user equipment UE at the same time.
  • Step S1610 the base station side configures a preset phase matrix, the preset phase matrix is formed according to the quantized value of the phase difference between CPs, the same row represents a phase difference value between each CP, and the number of columns represents the number of CPs.
  • Step S1630 the base station side uses a preset phase matrix to adjust the phase according to the configured CSI resources or SSB resources, and sends the CSI resources or SSB resources for UE measurement.
  • Step S1640 the base station side determines which row (column) value in the matrix to use according to the reported information of the UE, so as to obtain the transmission phase information.
  • the corresponding reporting information is CRI-RI-PMI-CQI or CRI-RI-i 1 or CRI-RSRP and other reporting information including CRI information;
  • the reporting information is SSB- Information such as Index-RSRP, and the reported information includes SSB resource index information.
  • i1 is a part of the PMI codebook and represents a precoding index value.
  • the base station side can transmit the traffic channel (for example, PDSCH (Physical Downlink Shared Channel, physical downlink shared channel)) according to the obtained transmission phase information corresponding to each transceiver node, and can compensate the phase difference, so as to achieve coherent or The quasi-coherent effect increases the signal strength.
  • PDSCH Physical Downlink Shared Channel, physical downlink shared channel
  • a cell contains multiple transceiver nodes CP, for example, 6
  • Each transceiver node is CP0, CP1, CP2, CP3, CP4 and CP5.
  • Phase information acquisition methods including:
  • Step S1710 the base station side configures the preset phase matrix as follows:
  • Step S1720 according to the number of rows of the preset phase matrix (Phase matrix) in step S1710, it is determined that 4 groups of CSI resources need to be configured.
  • Periodic reporting of 5G NR supports the configuration of multiple CSI resources in one resource set, so only one resource set is required. CQI.
  • the phase of the signal sent by the second transceiver node CP1 is rotated by ⁇ /2.
  • Step S1740 the base station side receives the reported information of the UE, such as CRI information, and confirms the ID of the CSI resource corresponding to the CRI information, for example, 2, representing that the multiple test phase information corresponding to the CSI resource whose resource ID is 2 is corresponding to each transceiver node.
  • the second group of preset phase data is (0, ⁇ /2, 0, ⁇ /2, 0, ⁇ /2), and the phase difference compensation of this group of preset phase data is the best. Therefore, it can be confirmed that each The phase compensation between the sending and receiving nodes CP is performed according to the second row, so as to realize the optimal transmission performance.
  • Step S1750 the base station side compensates the phase of the downlink channel according to the number of rows corresponding to the CRI report information, and sends the PDSCH channel signal (traffic channel information).
  • transceiver nodes are distributed in a chain.
  • This configuration is a common configuration for high-speed rail at present.
  • the method of combining multiple cells is adopted, that is, a cell contains multiple transceiver node CPs.
  • transceiver nodes there are 6 transceiver nodes, namely CP0, CP1, CP2, CP3, CP4 and CP5.
  • Phase information acquisition methods including:
  • Step S1810 the base station side configures the preset phase matrix as follows:
  • Step S1820 the base station side configures 5 SSB resources (5 groups of preset phase data), and configures RSRP reporting.
  • Step S1830 the base station side confirms according to the SSB index corresponding to the strongest RSRP reported by the UE that the use is to use the first row of the Phase matrix for transmission, so as to obtain the phase difference between the CPs. It is assumed that the UE reports the highest value corresponding to the second SSB resource. Strong RSRP, the second SSB resource is (0, ⁇ /4,0, ⁇ /4,0, ⁇ /4).
  • Step S1840 the base station side uses the phase difference (0, ⁇ /4,0, ⁇ /4,0, ⁇ /4) of the second row of the Phase matrix to compensate each transceiver node CP, and jointly sends PDSCH data;
  • multiple sets of preset phase data are configured on the base station side, and related measurement feedback is configured at the same time, and phase difference data between multiple transmission nodes is acquired according to the measurement feedback, so that the base station side can send service channel information according to the phase difference data. , so as to improve the network transmission performance.
  • an embodiment of the present application provides an information feedback method, including:
  • Step S2100 respectively receiving multiple sets of measurement resources from multiple transceiver nodes on the base station side; the measurement resources are determined by the base station side according to preset phase data, and the preset phase data includes test phase information corresponding to multiple transceiver nodes ;
  • Step S2200 Send reporting information to the base station side according to the multiple sets of measurement resources, so that the base station side determines the sending phase information corresponding to each transceiver node for sending traffic channel information according to the reporting information.
  • the information feedback method further includes:
  • Step S2300 Receive traffic channel information from multiple transceiver nodes on the base station side; the traffic channel information is information sent by the base station side through each transceiver node according to the transmit phase information.
  • an acquisition module configured to acquire multiple groups of preset phase data; wherein, each group of preset phase data includes multiple test phase information, and multiple pieces of the test phase information are in one-to-one correspondence with multiple transceiver nodes;
  • the sending module is configured to send a set of measurement resources to the UE correspondingly through a plurality of transceiver nodes according to each set of preset phase data;
  • a receiving module configured to receive reporting information from the UE
  • the phase difference determination module is configured to determine, according to the reported information, the transmission phase information corresponding to each transceiver node for transmitting the traffic channel information.
  • the acquiring module is configured to perform step S1100 in the first aspect; or perform sub-steps S1110 and S1120 of step S1100 in the first aspect; or perform steps in the first aspect Sub-steps S1130 and S1140 of S1100.
  • the sending module is configured to perform step S1200 in the embodiment of the first aspect; or to perform sub-steps S1211, S1212 and S1213 of step S1200 in the embodiment of the first aspect; or to perform sub-steps of step S1200 in the embodiment of the first aspect S1221, S1222 and S1223.
  • the receiving module is configured to perform step S1300 as in the embodiment of the first aspect.
  • the phase difference determination module is configured to perform step S1400 in the embodiment of the first aspect; or to perform sub-steps S1411 and S1412 of step S1400 in the embodiment of the first aspect; or to perform sub-steps of step S1400 in the embodiment of the first aspect S1421, S1422 and S1423.
  • the phase difference obtaining apparatus further includes:
  • the second sending module is configured to send traffic channel information to the UE through each transceiver node according to the sending phase information.
  • the second sending module is configured to perform step S1500 in the embodiment of the first aspect; or to perform sub-steps S1510 and S1520 of step S1500 in the embodiment of the first aspect.
  • an embodiment of the present application provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and running on the processor, where the processor implements when executing the program:
  • This embodiment of the present application configures multiple sets of preset phase data on the base station side, configures related measurement feedback, and obtains phase information data between multiple transmission nodes according to the measurement feedback, so that the base station side can send traffic channel information according to the phase information data. , so as to improve the network transmission performance.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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

Abstract

La présente invention concerne un procédé d'acquisition d'informations de phase, un procédé de rétroaction, un appareil, un dispositif et un support de stockage. Les modes de réalisation de la présente demande concernent un procédé d'acquisition d'informations de phase, consistant à : acquérir de multiples groupes de données de phase préétablies, chaque groupe de données de phase préétablies comprenant de multiples éléments d'informations de phase de test et les multiples éléments d'informations de phase de test étant en correspondance biunivoque avec de multiples points d'émission et de réception ; selon chaque groupe de données de phase préétablies, envoyer un groupe de ressources de mesure à un UE en conséquence au moyen des multiples points d'émission et de réception ; recevoir des informations de rapport en provenance de l'UE ; et selon les informations de rapport, déterminer des informations de phase d'envoi qui correspondent à chaque point d'émission et de réception et qui sont utilisées pour envoyer des informations de canal de service.
PCT/CN2021/138469 2020-12-21 2021-12-15 Procédé d'acquisition d'informations de phase, procédé de rétroaction, appareil, dispositif et support de stockage WO2022135241A1 (fr)

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CN202011517593.0 2020-12-21
CN202011517593.0A CN114650559A (zh) 2020-12-21 2020-12-21 相位信息获取方法、反馈方法、装置、设备及存储介质

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CN117856979A (zh) * 2022-09-30 2024-04-09 华为技术有限公司 通信方法及相关产品

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190238208A1 (en) * 2018-04-09 2019-08-01 Yang Tang Methods of beam management and beam selection based on measurement reporting in new radio (nr) systems
WO2020092260A1 (fr) * 2018-10-31 2020-05-07 Intel Corporation Transmission améliorée de canal physique de commande de liaison montante (pucch) pour obtenir une grande fiabilité
US20200350967A1 (en) * 2019-04-30 2020-11-05 Kai Xu Channel State Information Feedback for Multiple Transmission Reception Points
CN112088496A (zh) * 2018-05-11 2020-12-15 高通股份有限公司 针对新无线电中的多发送/接收点传输的信道状态信息反馈

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190238208A1 (en) * 2018-04-09 2019-08-01 Yang Tang Methods of beam management and beam selection based on measurement reporting in new radio (nr) systems
CN112088496A (zh) * 2018-05-11 2020-12-15 高通股份有限公司 针对新无线电中的多发送/接收点传输的信道状态信息反馈
WO2020092260A1 (fr) * 2018-10-31 2020-05-07 Intel Corporation Transmission améliorée de canal physique de commande de liaison montante (pucch) pour obtenir une grande fiabilité
US20200350967A1 (en) * 2019-04-30 2020-11-05 Kai Xu Channel State Information Feedback for Multiple Transmission Reception Points

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