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WO2023197225A1 - Procédé de détermination de ressources de liaison latérale et appareil - Google Patents

Procédé de détermination de ressources de liaison latérale et appareil Download PDF

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Publication number
WO2023197225A1
WO2023197225A1 PCT/CN2022/086719 CN2022086719W WO2023197225A1 WO 2023197225 A1 WO2023197225 A1 WO 2023197225A1 CN 2022086719 W CN2022086719 W CN 2022086719W WO 2023197225 A1 WO2023197225 A1 WO 2023197225A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
sidelink
resource
indication information
configuration parameters
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/086719
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English (en)
Chinese (zh)
Inventor
杨星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
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 Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2022/086719 priority Critical patent/WO2023197225A1/fr
Priority to CN202280001102.8A priority patent/CN114938722A/zh
Publication of WO2023197225A1 publication Critical patent/WO2023197225A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]

Definitions

  • the terminals when terminals use unicast for sidelink transmission, the terminals only support sending and receiving information on a specific sidelink resource. There may be a risk of data loss, which is an urgent problem that needs to be solved. .
  • Embodiments of the present disclosure provide a method and device for determining sidelink resources, which can be applied to the Internet of Vehicles, such as vehicle to everything (V2X) communication and inter-vehicle communication long term evolution-vehicle (LTE-V) ), vehicle to vehicle (V2V) communication, etc., or can be used in fields such as intelligent driving and intelligent connected vehicles.
  • the first terminal can perform sidelink communication with the second terminal on the determined sidelink resource, which can avoid data lost.
  • Figure 4 is a flow chart of yet another method for determining sidelink resources provided by an embodiment of the present disclosure
  • CBR measurement methods are different, and the obtained CBR can represent different types of channel busyness. For example, within the preset measurement period of 100ms, if the first terminal responds to PSFCH (Physical Sidelink Feedback control Channel), PSSCH (Physical Sidelink Shared Channel) and PSCCH (Physical Sidelink Shared Channel) CBR measurement is performed on three channels: Control Channel (side link control channel).
  • PSFCH Physical Sidelink Feedback control Channel
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Shared Channel
  • the first terminal may be configured with a sidelink link, and the first terminal may communicate with another terminal (herein referred to as the second terminal) through the sidelink link.
  • the sidelink The link may be called a main sidelink link.
  • the first terminal may perform the following operations as shown in Figure 6: After determining the configuration parameters in steps S61 and S62, the first terminal Configure parameters to measure the resources of the main sidelink link. In step S63, in response to determining that the link condition of the main sidelink link meets the triggering condition, it is determined to continue using the main sidelink link to communicate with the second terminal.
  • the first terminal determines the configuration parameters. For example, it is determined that the channel congestion rate CBR is greater than 50%, the RSRP between the first terminal and the network side device is less than -97db, and the number of sidelink LBT failures occurs greater than 10 times. , the RSRP between the first terminal and the second terminal is less than -97db and the location parameter is determined to be at least one of the locations within the specified area.
  • the first indication information sent by the network side device is received; wherein the first indication information is used to indicate the second resource for sidelink transmission; and the target sidelink resource is determined to be the second resource according to the first indication information.
  • the first terminal when the first terminal determines that the first resource used for sidelink transmission with the second terminal has a risk of data loss, it determines that the first resource is no longer used, and after receiving the first instruction sent by the network side device In the case of information, since the first indication information indicates the second resource for sidelink transmission, the first terminal can determine to use the second resource for sidelink transmission with the second terminal according to the first indication information.
  • the first terminal may send third indication information to the network side device to indicate the measurement results corresponding to the sidelink resource, where the sidelink resource may include multiple resources.
  • the network side device may determine Measurement results corresponding to multiple resources.
  • the first terminal may send second instruction information to the network side device, and the second instruction information indicates configuration parameters, where the configuration parameters are determined by the first terminal based on the configuration information sent by the second terminal and sent to the network side.
  • the device sends the third instruction information to indicate the measurement results corresponding to the sidelink resources, where the sidelink resources may include multiple resources, sends the fourth instruction information to the network side device, indicating that the first resource is no longer used for sidelink transmission, and sends the device to the network side device.
  • the fifth indication information indicates the destination address of the second terminal, so that the network side device can perform measurements corresponding to the configuration parameters and multiple resources according to the second indication information, the third indication information, the fourth indication information and the fifth indication information. As a result, the first resource and the destination address of the second terminal are no longer used, and the second resource that can avoid data loss during sidelink communication between the first terminal and the second terminal is determined.
  • the configuration parameter is the RSRP between the first terminal and the second terminal
  • the first terminal can determine whether the third resource used will have the risk of data loss based on the third measurement result and configuration parameters, and further determine whether to continue to use the third resource for sidelink transmission.
  • the sidelink transmission includes Send and/or receive.
  • the first terminal determines that the third measurement result satisfies the configuration parameters, indicating that there is no data when the first terminal uses the third resource. lost. At this time, it is determined that the target sidelink resource is the third resource, and it is determined to continue to use the third resource to perform sidelink transmission with the second terminal.
  • the method may include but is not limited to the following steps:
  • the configuration parameter may be the condition of congestion and/or poor channel quality in the resources of the sidelink link (such as frequency domain resources, time domain resources, time-frequency resources, code domain resources, etc.), or may also be If the resource is not congested and/or the channel quality is good, the first terminal can determine the congestion situation of the resource when the first terminal and the second terminal perform sidelink communication according to the configuration parameters, and/or the first terminal and the network side device and/or the channel quality between the first terminal and the second terminal, etc., to ensure data transmission.
  • the resources of the sidelink link such as frequency domain resources, time domain resources, time-frequency resources, code domain resources, etc.
  • the measurement result corresponding to the second shared resource meets the configuration parameters, indicating that at this time, the first terminal will not experience congestion when using the second shared resource. There is no congestion. Risk of data loss; at this time, the first terminal determines the target sidelink resource as the second shared resource, and uses the second shared resource without the risk of data loss to perform sidelink communication with the second terminal, which can avoid data loss.
  • determining that the first resource is no longer used for sidelink transmission may specifically include: determining from the secondary sidelink link that the configuration parameters are satisfied. secondary sidelink link, and switches from the current primary sidelink link to the secondary sidelink link.
  • determining that the first resource is no longer used for sidelink transmission may specifically include: determining from the secondary sidelink link that the configuration parameters are satisfied. secondary sidelink link, and switches from the current primary sidelink link to the secondary sidelink link.
  • the second resource may be a resource of the auxiliary sidelink link.
  • the second resource may be a shared resource determined by a unicast connection between the first terminal and the second terminal, or the first terminal and the second terminal may be connected by a unicast connection.
  • the shared resource may be a shared frequency resource, a shared time domain resource, or a shared time-frequency domain resource.
  • the non-shared resource may be a non-shared frequency resource, a non-shared time domain resource, or a non-shared time-frequency domain resource.
  • the third resource may be a resource of the main sidelink link, and the third resource may be a shared resource determined by a unicast connection between the first terminal and the second terminal, or a unicast connection between the first terminal and the second terminal.
  • the shared resource may be a shared frequency resource, a shared time domain resource, or a shared time-frequency domain resource.
  • the non-shared resource may be a non-shared frequency resource, a non-shared time domain resource, or a non-shared time-frequency domain resource.
  • the methods provided by the embodiments of the present disclosure are introduced from the perspectives of the first terminal and the network side device respectively.
  • the network side device and the first terminal may include a hardware structure and a software module to implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above functions can be executed by a hardware structure, a software module, or a hardware structure plus a software module.
  • the communication device 1 may be a first terminal, a device in the first terminal, or a device that can be used in conjunction with the first terminal.
  • the communication device 1 may be a network-side device, a device in the network-side device, or a device that can be used in conjunction with the network-side device.
  • FIG. 13 is a structural diagram of a chip provided in an embodiment of the present disclosure.
  • Chip 1100 includes processor 1101 and interface 1103.
  • the number of processors 1101 may be one or more, and the number of interfaces 1103 may be multiple.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • each table in this disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
  • it is not necessarily required to configure all the correspondences shown in each table.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.

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

Abstract

Les modes de réalisation de la présente divulgation concernent un procédé de détermination de ressources de liaison latérale, et un appareil, qui peuvent être appliqués à des systèmes tels que l'internet des véhicules, V2X et V2V. Le procédé comprend les étapes suivantes : un premier terminal détermine un paramètre de configuration, qui est utilisé pour ordonner au premier terminal de mesurer une liaison latérale primaire et/ou une liaison latérale secondaire selon le paramètre de configuration, le premier terminal étant configuré avec une liaison latérale primaire et/ou au moins une liaison latérale secondaire ; acquiert un résultat de mesure, qui est obtenu selon le paramètre de configuration et correspond à une ressource de liaison latérale de la liaison latérale primaire et/ou de l'au moins une liaison latérale secondaire ; et détermine une ressource de liaison latérale cible, qui est utilisée pour effectuer une transmission en liaison latérale, de façon à effectuer en outre une communication en liaison latérale avec un second terminal à l'aide de la ressource de liaison latérale cible. Par conséquent, une perte de données peut être évitée.
PCT/CN2022/086719 2022-04-13 2022-04-13 Procédé de détermination de ressources de liaison latérale et appareil Ceased WO2023197225A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2022/086719 WO2023197225A1 (fr) 2022-04-13 2022-04-13 Procédé de détermination de ressources de liaison latérale et appareil
CN202280001102.8A CN114938722A (zh) 2022-04-13 2022-04-13 侧链路sidelink资源的确定方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/086719 WO2023197225A1 (fr) 2022-04-13 2022-04-13 Procédé de détermination de ressources de liaison latérale et appareil

Publications (1)

Publication Number Publication Date
WO2023197225A1 true WO2023197225A1 (fr) 2023-10-19

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WO (1) WO2023197225A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024197683A1 (fr) * 2023-03-30 2024-10-03 Nokia Shanghai Bell Co., Ltd. Dispositifs et procédés de brouillage sur une liaison latérale

Citations (4)

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Publication number Priority date Publication date Assignee Title
US20200146094A1 (en) * 2018-11-02 2020-05-07 Qualcomm Incorporated Unicast sidelink establishment
US20210368372A1 (en) * 2019-02-14 2021-11-25 Zte Corporation Link measurements for vehicular device-to-device links
WO2022011699A1 (fr) * 2020-07-17 2022-01-20 华为技术有限公司 Procédé de communication et dispositif de liaison latérale
WO2022042489A1 (fr) * 2020-08-31 2022-03-03 华为技术有限公司 Procédés et appareils d'indication et de sélection de ressources

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110830951A (zh) * 2018-08-09 2020-02-21 华为技术有限公司 配置侧行链路传输资源的方法和装置
CN110971354B (zh) * 2018-09-28 2022-07-15 大唐移动通信设备有限公司 单播传输方法、配置方法、终端及网络侧设备
WO2020093335A1 (fr) * 2018-11-08 2020-05-14 Oppo广东移动通信有限公司 Procédé et dispositif terminal de transmission de données de liaison latérale
CN111669779B (zh) * 2019-03-07 2021-12-28 华为技术有限公司 设备到设备d2d中链路检测的方法和装置
CN113498200B (zh) * 2020-03-19 2023-06-06 维沃移动通信有限公司 一种传输配置方法及终端

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200146094A1 (en) * 2018-11-02 2020-05-07 Qualcomm Incorporated Unicast sidelink establishment
US20210368372A1 (en) * 2019-02-14 2021-11-25 Zte Corporation Link measurements for vehicular device-to-device links
WO2022011699A1 (fr) * 2020-07-17 2022-01-20 华为技术有限公司 Procédé de communication et dispositif de liaison latérale
WO2022042489A1 (fr) * 2020-08-31 2022-03-03 华为技术有限公司 Procédés et appareils d'indication et de sélection de ressources

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Title
APPLE: "Sidelink Resource Allocation for Power Saving", 3GPP TSG RAN WG1 #107-E, R1-2111894, 6 November 2021 (2021-11-06), XP052075149 *

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