WO2023098865A1 - Procédé executé par un équipement utilisateur et équipement utilisateur - Google Patents

Procédé executé par un équipement utilisateur et équipement utilisateur Download PDF

Info

Publication number
WO2023098865A1
WO2023098865A1 PCT/CN2022/136172 CN2022136172W WO2023098865A1 WO 2023098865 A1 WO2023098865 A1 WO 2023098865A1 CN 2022136172 W CN2022136172 W CN 2022136172W WO 2023098865 A1 WO2023098865 A1 WO 2023098865A1
Authority
WO
WIPO (PCT)
Prior art keywords
relay
remote
srap
rrc connection
user equipment
Prior art date
Application number
PCT/CN2022/136172
Other languages
English (en)
Chinese (zh)
Inventor
张崇铭
刘仁茂
坪井秀和
Original Assignee
夏普株式会社
张崇铭
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 夏普株式会社, 张崇铭 filed Critical 夏普株式会社
Publication of WO2023098865A1 publication Critical patent/WO2023098865A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present invention relates to the technical field of wireless communication, and more specifically, the present invention relates to a method executed by user equipment and corresponding user equipment.
  • a user equipment UE can directly communicate with the base station, and such a communication connection is called a direct connection (direct connection).
  • the UE can also communicate with the base station through a relay UE (relay UE), and this connection can be called an indirect connection (indirect connection).
  • relay UE relay UE
  • this connection can be called an indirect connection (indirect connection).
  • the relay UE communicates with the base station
  • the UE is called a remote UE (remote UE).
  • the SRAP layer is designed.
  • the SRAP layer on the PC5 interface is called PC5 SRAP
  • the SRAP layer on the Uu interface is called Uu SRAP.
  • the mapping relationship between bearer and logical channel is configured in PC5 SRAP
  • the local identity of the remote UE and the mapping relationship between bearer and logical channel are configured in Uu SRAP.
  • PC5 SRAP and Uu SRAP entities are logically configured to handle the mapping relationship to ensure correct communication of data between the remote UE and the base station.
  • the present invention provides a method executed by user equipment and the user equipment.
  • a method performed by user equipment is provided, which is performed during the process of communicating between a remote UE and a base station through a relay UE, including the following steps:
  • the relay UE receives the RRC connection reconfiguration message from the base station, and the message carries the configuration information of SRAP used for the relay UE, that is, the first configuration information;
  • the relay UE After receiving the above-mentioned first configuration information, the relay UE configures corresponding parameters of the SRAP entity according to the above-mentioned first configuration information, and the parameters are used for a specific remote UE.
  • the configuration information of the Uu SRAP of the relay UE and/or the configuration information of the PC5 SRAP of the relay UE are included in the above-mentioned first configuration information.
  • the above-mentioned RRC connection reconfiguration message also carries information about releasing one or more remote UEs, that is, release information.
  • the relay UE After receiving the above release information, the relay UE releases the PC5 RRC connection with the remote UE.
  • the relay UE also releases the SRAP configuration information corresponding to the remote UE.
  • the relay UE or the remote UE performs at least one of the following operations:
  • the relay UE When the relay UE releases the PC5 RRC connection with the remote UE, the relay UE performs at least one of the following operations:
  • the remote UE performs at least one of the following operations:
  • the above SRAP configuration includes at least one of the following information:
  • the local UE identity of the remote UE is the local UE identity of the remote UE
  • a user equipment including:
  • the above-mentioned instructions when executed by the above-mentioned processor, cause the above-mentioned user equipment to perform the method according to the above-mentioned description.
  • the correct communication between the remote UE and the base station can be realized by managing the configuration of the SRAP.
  • FIG. 1 is a schematic diagram showing UE-to-Network relay.
  • Fig. 2 is a schematic diagram showing the control plane protocol stack of UE-to-Network L2 architecture.
  • Fig. 3 shows a method executed by a user equipment UE according to an embodiment of the present invention.
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • UE User Equipment user equipment
  • MAC CE MAC control element
  • RLC Radio Link Control Wireless Link Control
  • SDAP Service Data Adaptation Protocol Service Data Adaptation Protocol
  • PDCP Packet Data Convergence Protocol Packet Data Convergence Protocol
  • SRAP Sidelink Relay Adaptation Protocol
  • Sidelink Relay Adaptation Protocol Sidelink Relay Adaptation Protocol
  • RRC Radio Resource Control Radio Resource Control
  • RRC_IDLE RRC idle state
  • RAN Radio Access Network, wireless access network
  • SCI Sidelink Control Information, side link communication control information
  • MIB Master Information Block, master information block
  • SIB System Information Block, system information block
  • NG-RAN NG Radio Access Network, a new generation of radio access network
  • DCI Downlink Control Information, downlink control information
  • ADAPT Adaptation layer, side link communication adaptation layer
  • PHY physical layer, physical layer
  • RB radio bearer, wireless bearer
  • DRB Data Radio Bearer, data radio bearer
  • SRB Signaling Radio Bearer, signaling radio bearer
  • PDU Protocol Data Unit Protocol Data Unit
  • SDU Service Data Unit service data unit
  • V2X Vehicle-to-Everything Internet of Vehicles
  • CCCH Common Control Channel public control channel
  • DCCH Dedicated Control Channel dedicated control channel
  • the network, base station and RAN can be used interchangeably, and the network can be a long-term evolution LTE network, a new radio access technology (New RAT, NR) network, an enhanced long-term evolution eLTE network, or a subsequent evolution version of 3GPP Other networks defined in .
  • New RAT new radio access technology
  • eLTE enhanced long-term evolution eLTE network
  • the user equipment UE may refer to the NR equipment supporting the NR Sidelink relay function described in the background technology, or may refer to the NR equipment supporting the NR sidelink relay architecture, or may refer to other types of NR equipment or LTE equipment.
  • sidelink and PC5 can be used interchangeably, and RLC channel (channel), RLC entity and RLC bearer (bearer) can be used interchangeably.
  • the PC5 interface is an interface for Sidelink communication between the UE and the UE on the control plane and the user plane.
  • the PC5-RRC connection is an AS layer logical connection between a pair of source layer 2 IDs and target layer 2 IDs.
  • the establishment of a PC5 unicast link corresponds to the establishment of a PC5-RRC connection.
  • such a pair of source layer 2 ID and target layer 2 ID (or only the target layer 2 ID) can be considered as NR Sidelink communication address information (destination), so such PC5RRC connection or NR Sidelink communication is Associated with a specific address (or destination ID).
  • the remote UE-to-Network relay is shown in Figure 1.
  • the remote UE is on the left, the relay UE is in the middle, and the network is on the right; in scenario 3, the networks are on both sides, and the middle is from the left To the right are the remote UE and the relay UE.
  • the remote UE is connected to the relay UE through the PC5 interface, and the relay UE is connected to the network through the Uu interface. Since the remote UE is far away from the network or the communication environment is not good, the relay UE needs to relay and forward the signaling and data between the two.
  • the Remote UE After the Remote UE selects a relay UE to provide relay services for itself, it will establish a PC5-RRC connection with the relay UE to communicate with the network through the relay UE.
  • the remote UE can establish an air interface RRC connection with the network through the relay UE for data transmission between the remote UE and the network.
  • the Remote UE will send the air interface RRC connection establishment (setup), re-establishment (re-establish), and resume (resume) messages to the network to encapsulate the data through the Uu PDCP layer, and submit them to the corresponding PC5 RLC entity through the PC5 SRAP entity for further encapsulation. It is carried on the PC5 RLC channel and delivered downward layer by layer through PC5-MAC and PC5-PHY.
  • the relay UE After the relay UE receives the data carrying the message, it submits it layer by layer through the PC5-PHY and PC5-MAC.
  • the relay UE adds the local identifier assigned by the base station to identify the remote UE, and Find the Uu RLC channel carrying the message according to the pre-configured mapping relationship between the radio bearer and the Uu RLC channel, encapsulate the message in the Uu message/data and send it to the network.
  • the base station encapsulates the RRC message returned by the network into the Uu message/data and sends it to the relay UE.
  • the relay UE determines the PC5 RLC channel that carries the message, and encapsulates the message in the PC5 message/data sent to the remote UE. .
  • the PC5 interface is a wireless communication interface between the Remote UE and the relay UE.
  • the remote UE and the relay UE communicate through a sidelink (sidelink), and the communication interface of the sidelink is the PC5 interface, so the descriptions of sidelink and PC5 in this article can be replaced with each other.
  • the PC5 RLC entity refers to the RLC entity used for PC5 interface communication.
  • the PC5 RLC entity carries information from the Uu PDCP entity, so such a PC5 RLC entity can also be called a PC5 RLC bearer (bearer).
  • the PC5 SRAP entity refers to the SRAP entity used for PC5 interface communication.
  • the PC5 SRAP on the remote UE side determines the uplink data (UE sends The PC5 RLC entity submitted by the data to the base station), and determine the bearer corresponding to the downlink data from the PC5 RLC entity (data sent by the base station to the UE).
  • PC5 SRAP entity corresponding to the remote UE side in the relay UE.
  • UE can use E-UTRAN to communicate with eNB on Uu interface.
  • UE can also use NR to communicate with gNB on Uu interface.
  • Uu SRAP entity refers to the SRAP entity used for Uu interface communication.
  • the relay UE can send the received data information of the remote UE to the corresponding Uu RLC entity, and can send the received data information from the base station to the corresponding remote UE to realize mapping or adaptive functions.
  • both the PC5 SRAP entity and the Uu SRAP entity refer to the SRAP entity that complies with the SRAP protocol stack, but the communication interfaces used by the two are different.
  • entity and layer can be interchanged, such as SRAP entity or SRAP layer.
  • This embodiment provides a method performed by a user equipment UE, which is a method performed during a process in which a remote UE communicates with a base station through a relay UE. As shown in FIG. 3 , the method includes the following steps.
  • Step S301 the Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message, in which the SRAP configuration information sl-SRAP-Config-Relay (herein recorded as the first configuration information) for the relay UE is carried ).
  • the configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
  • Step S302 After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity according to the above information (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay).
  • these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE managed with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier.
  • the Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
  • the relay UE After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list. And, the relay UE also releases the SRAP configuration information corresponding to the remote UE (release the sl-SRAP-Config-Relay associated with the remote UE). Preferably, the relay UE releases the configuration information of PC5 SRAP and Uu SRAP. It may also be that the relay UE only releases the configuration information of the Uu SRAP therein.
  • the Relay UE receives an RRC message from the base station, such as an RRC connection reconfiguration message (RRC connection reconfiguration), in which the SRAP configuration information sl-SRAP-Config-Relay for the relay UE is carried (denoted as the first configuration information).
  • the configuration information (that is, the first configuration information) may include configuration information of Uu SRAP of the relay UE, and/or configuration information of PC5 SRAP of the relay UE.
  • the relay UE After receiving the above information (that is, the first configuration information), the relay UE configures the corresponding parameters of the SRAP entity (configure the parameters to SRAP entity in accordance with the sl-SRAP-Config-Relay) according to the above information.
  • these parameters are used for a specific remote UE, that is, while configuring SRAP, the base station also provides information about the remote UE associated with the SRAP configuration, such as the value of the layer 2 identifier of the remote UE. Then this part of the configured SRAP parameters is associated (association) with the remote UE corresponding to the value of the layer 2 identifier, and is used for the specific remote UE.
  • the Relay UE can also receive the RRC connection reconfiguration message from the base station, in which the message carries the information of releasing one or more remote UEs (referred to as the release information here), specifically, it can carry a list, which contains The value of the layer 2 identifier of the remote UE that needs to be released.
  • the relay UE After receiving the above information (that is, the release information), the relay UE releases the PC5 RRC connection with the remote UE, where the remote UE refers to the remote UE whose value of the layer 2 identifier appears in the above list.
  • the relay UE can perform one or more of the following operations:
  • SRAP configuration associated with the PC5 RRC connection for the relay UE such as sl-SRAP-Config-relay configuration
  • SRAP configuration for relay UE associated with the address corresponding to the PC5 RRC connection such as sl-SRAP-Config-relay configuration
  • the remote UE when the relay UE releases the PC5 RRC connection with the remote UE, the remote UE also releases the connection with the relay UE, so the remote UE can perform the following operations
  • the above sl-SRAP-Config-remote configuration means that the remote UE has received the RRC connection reconfiguration message from the base station, and the message carries the SRAP configuration information sl-SRAP-Config-Remote for the remote UE (recorded here for the 2nd configuration information).
  • the configuration information may include the configuration information of the PC5 SRAP of the remote UE.
  • Embodiments 2 and 3 when a UE is used as a remote UE or a relay UE, when it starts PC5 RRC connection release, it can perform the following operations:
  • the sl-SRAP-Config configuration in the above process refers to the sl-SRAP-Config-remote for the remote UE, and refers to the sl-SRAP-Config-relay configuration for the relay UE.
  • the local UE identification (local identity, local ID) of the remote UE which is used for Uu SRAP to distinguish the remote UE;
  • the mapping list of the bearer identification of the remote UE and the RLC channel (which can be Uu RLC or PC5 RLC);
  • the RLC channel at the Uu interface such as the channel identifier
  • RLC channel at the PC5 interface such as channel identification
  • Fig. 4 is a brief structural block diagram of the user equipment UE involved in the present invention.
  • the user equipment UE400 includes a processor 401 and a memory 402 .
  • the processor 401 may include, for example, a microprocessor, a microcontroller, an embedded processor, and the like.
  • the memory 402 may include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a nonvolatile memory (such as a flash memory), or other memories.
  • Memory 402 has program instructions stored thereon. When the instructions are executed by the processor 401, the above method described in detail in the present invention and executed by the user equipment may be executed.
  • the program running on the device according to the present invention may be a program that causes a computer to realize the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in volatile memory (such as random access memory RAM), hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory systems.
  • a program for realizing the functions of the various embodiments of the present invention can be recorded on a computer-readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called “computer system” here may be a computer system embedded in the device, which may include an operating system or hardware (such as peripheral devices).
  • the "computer-readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium in which a short-term dynamic storage program is stored, or any other recording medium readable by a computer.
  • circuits for example, single-chip or multi-chip integrated circuits.
  • Circuits designed to perform the functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application-specific integrated circuits
  • FPGAs field-programmable gate arrays
  • a general-purpose processor can be a microprocessor, or it can be any existing processor, controller, microcontroller, or state machine.
  • the above-mentioned circuits may be digital circuits or analog circuits. Where advances in semiconductor technology have resulted in new integrated circuit technologies that replace existing integrated circuits, one or more embodiments of the invention may also be implemented using these new integrated circuit technologies.
  • the present invention is not limited to the above-described embodiments. Although various examples of the embodiments have been described, the present invention is not limited thereto.
  • Fixed or non-mobile electronic equipment installed indoors or outdoors can be used as terminal equipment or communication equipment, such as AV equipment, kitchen equipment, cleaning equipment, air conditioners, office equipment, vending machines, and other household appliances.

Landscapes

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

Abstract

La présente invention concerne un procédé exécuté par un équipement utilisateur (UE), et un équipement utilisateur. Le procédé est un procédé exécuté dans le processus selon lequel un équipement utilisateur distant communique avec une station de base au moyen d'un équipement utilisateur relais, et comprend les étapes suivantes: l'équipement utilisateur relais reçoit un message de reconfiguration de connexion de commande de ressources radio (RRC) en provenance de la station de base, le message portant une information de configuration pour un protocole d'adaptation de relais de liaison latérale (SRAP) de l'équipement utilisateur relais, c'est-à-dire une première information de configuration; et après réception de la première information de configuration, l'équipement utilisateur relais configure un paramètre correspondant d'une entité de protocole SRAP selon la première information de configuration, le paramètre étant utilisé pour un équipement utilisateur distant spécifique.
PCT/CN2022/136172 2021-12-02 2022-12-02 Procédé executé par un équipement utilisateur et équipement utilisateur WO2023098865A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111478943.1 2021-12-02
CN202111478943.1A CN116233879A (zh) 2021-12-02 2021-12-02 由用户设备执行的方法及用户设备

Publications (1)

Publication Number Publication Date
WO2023098865A1 true WO2023098865A1 (fr) 2023-06-08

Family

ID=86571814

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/136172 WO2023098865A1 (fr) 2021-12-02 2022-12-02 Procédé executé par un équipement utilisateur et équipement utilisateur

Country Status (2)

Country Link
CN (1) CN116233879A (fr)
WO (1) WO2023098865A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170265175A1 (en) * 2016-03-09 2017-09-14 Cisco Technology, Inc. Core signalling reduction in dual connectivity
CN112839359A (zh) * 2019-11-22 2021-05-25 联发科技（新加坡）私人有限公司 适配处理方法和用户设备
CN113676960A (zh) * 2020-05-13 2021-11-19 维沃移动通信有限公司 切换方法及装置、终端设备及网络设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170265175A1 (en) * 2016-03-09 2017-09-14 Cisco Technology, Inc. Core signalling reduction in dual connectivity
CN112839359A (zh) * 2019-11-22 2021-05-25 联发科技（新加坡）私人有限公司 适配处理方法和用户设备
CN113676960A (zh) * 2020-05-13 2021-11-19 维沃移动通信有限公司 切换方法及装置、终端设备及网络设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "Adaptation layer functionalities for L2 U2N relay", 3GPP TSG RAN WG2 MEETING #115 ELECTRONIC, R2-2108623, 6 August 2021 (2021-08-06), XP052034962 *
HUAWEI, HISILICON: "Introduction of Rel-17 Sidelink Relay", 3GPP TSG RAN WG2 MEETING #116 ELECTRONIC, R2-2111490, 19 November 2021 (2021-11-19), XP052078439 *

Also Published As

Publication number Publication date
CN116233879A (zh) 2023-06-06

Similar Documents

Publication Publication Date Title
US12010592B2 (en) Sidelink communications method and apparatus
JP7168056B2 (ja) 無線端末、基地局、及びこれらの方法
WO2018171546A1 (fr) Procédé exécuté dans un équipement utilisateur, et station de base et équipement correspondant
WO2020192777A1 (fr) Procédé et dispositif de communication
WO2023134679A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2022083444A1 (fr) Procédé d'acquisition d'informations système et équipement utilisateur
WO2021012966A1 (fr) Procédé de commande d'accès et équipement utilisateur
WO2023093818A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
JP2023165045A (ja) 端末装置、基地局装置および、方法
WO2023098865A1 (fr) Procédé executé par un équipement utilisateur et équipement utilisateur
WO2022135336A1 (fr) Procédé de segmentation et de transport de qos, procédé de détermination de qos côté objet et équipement utilisateur
WO2023280205A1 (fr) Procédé exécuté par un équipement d'utilisateur, et équipement d'utilisateur
WO2023274225A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2023280203A1 (fr) Procédé exécuté par un équipement utilisateur et équipement utilisateur
WO2023213267A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2023213285A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2024001948A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2024051681A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2023001191A1 (fr) Procédé exécuté par un équipement utilisateur et équipement utilisateur
WO2023125532A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur
WO2019031217A1 (fr) Dispositif terminal, dispositif de station de base et procédé exécuté par ces dispositifs
US20240244679A1 (en) Method performed by user equipment, and user equipment
WO2023040969A1 (fr) Procédé d'interaction de capacité d'équipement utilisateur et équipement utilisateur
WO2024067464A1 (fr) Procédé exécuté par un équipement utilisateur et équipement utilisateur
WO2024055956A1 (fr) Procédé exécuté par un équipement utilisateur, et équipement utilisateur

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: 22900669

Country of ref document: EP

Kind code of ref document: A1