WO2022206612A1 - 通信路径的切换方法、装置及终端 - Google Patents

通信路径的切换方法、装置及终端 Download PDF

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Publication number
WO2022206612A1
WO2022206612A1 PCT/CN2022/083111 CN2022083111W WO2022206612A1 WO 2022206612 A1 WO2022206612 A1 WO 2022206612A1 CN 2022083111 W CN2022083111 W CN 2022083111W WO 2022206612 A1 WO2022206612 A1 WO 2022206612A1
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Prior art keywords
relay
path
remote
reconfiguration message
switching
Prior art date
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PCT/CN2022/083111
Other languages
English (en)
French (fr)
Inventor
梁敬
郑倩
Original Assignee
维沃移动通信有限公司
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
Priority claimed from CN202110343630.9A external-priority patent/CN115150904B/zh
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to JP2023554314A priority Critical patent/JP2024508557A/ja
Priority to KR1020237029979A priority patent/KR20230138009A/ko
Priority to EP22778794.2A priority patent/EP4287706A1/en
Publication of WO2022206612A1 publication Critical patent/WO2022206612A1/zh
Priority to US18/374,727 priority patent/US20240023189A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/25—Maintenance of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/34—Modification of an existing route
    • H04W40/36—Modification of an existing route due to handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/03—Reselecting a link using a direct mode connection
    • H04W36/035—Reselecting a link using a direct mode connection in self-organising networks

Definitions

  • the present application belongs to the technical field of wireless communication, and in particular relates to a method, device and terminal for switching a communication path.
  • communication systems such as the 5th Generation New Radio (5G NR) system and the Long Term Evolution (Long Term Evolution, LTE) system can all support Sidelink (SL) transmission, that is, User Equipment (User Equipment) , UEs (that is, remote UEs) may directly perform data transmission on the physical layer without going through network side devices.
  • 5G NR 5th Generation New Radio
  • LTE Long Term Evolution
  • the terminal needs to switch from the communication path directly connected to the base station to the communication path indirectly connected to the base station through the relay terminal.
  • a set of reliable switching procedures is used as a support to ensure the smooth progress of the switching process.
  • the embodiments of the present application provide a communication path switching method, device and terminal, which can solve the problem that the communication path switching process cannot be smoothly performed in the SL relay scenario.
  • a first aspect provides a method for switching a communication path, performed by a remote UE, the method includes: receiving a reconfiguration message, where the reconfiguration message is used to instruct the remote UE to switch from a first path to a second Two paths, the first path includes the remote UE connecting directly with the first base station, and the second path includes the remote UE connecting with the second base station through the first relay UE; based on the reconfiguration message, in the process of switching from the first path to the second path, start a target timer, wherein the target timer is used by the remote UE to determine the path from the first path to the second path.
  • the switching result when switching.
  • an apparatus for switching a communication path includes: a receiving module configured to receive a reconfiguration message, where the reconfiguration message is used to instruct the remote UE to switch from a first path to a second path path, the first path includes the remote UE connecting directly with the first base station, and the second path includes the remote UE connecting with the second base station through the first relay UE; the switching module is configured to connect the remote UE to the second base station based on In the reconfiguration message, in the process of switching from the first path to the second path, a target timer is started, wherein the target timer is used for the remote UE to determine that the first path is to be sent to the second path. The switching result when the second path is switched is described.
  • a terminal in a third aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a chip in a sixth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect .
  • a computer program product/program product is provided, the computer program/program product is stored in a non-volatile storage medium, and the program/program product is executed by at least one processor to implement the first The steps of the method of the aspect.
  • the remote UE starts the target timer by receiving the reconfiguration message, and in the process of switching from the first path to the second path based on the reconfiguration message, and is set by In this way, the remote UE can be made aware of the switching result of the communication path, thereby ensuring the smooth execution of the communication path switching procedure.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by an exemplary embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for switching a communication path provided by an exemplary embodiment of the present application.
  • FIG. 3 is a schematic flowchart of a method for switching a communication path provided by another exemplary embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a method for switching a communication path provided by another exemplary embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for switching a communication path provided by another exemplary embodiment of the present application.
  • FIG. 6 is a schematic block diagram of a device for switching a communication path according to an exemplary embodiment of the present application.
  • FIG. 7 is a schematic block diagram of a terminal provided by an exemplary embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation (6th Generation) , 6G) communication system.
  • 6th Generation 6th Generation
  • 6G 6th Generation
  • FIG. 1 shows a schematic diagram of a result of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolution Node-B (evolution Node-B, eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (Wireless Local Area Network) Local Area Networks, WLAN) access point, WiFi node, Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary , It should be noted that, in the embodiments of the present application, only the base station in the NR system is used as an example, but the specific
  • the remote (Remote) UE needs to transmit data with the network side device 12, but due to poor coverage, it needs to be relayed by the relay (Relay) UE, where between the relay UE and the network side device 12
  • a Uu interface may be used for connection
  • a sidelink (sidelink, SL) interface may be used for connection between the relayUE and the remoteUE, where the SL interface may also be called a PC5 interface.
  • relayUE is open and can serve any remote UE.
  • the roles of the remote UE and the relay UE may be interchanged according to different communication scenarios.
  • the end UE may act as a relay UE to perform uplink and downlink data forwarding, etc.
  • the relay UE may also act as a remote UE, which is not limited in this embodiment.
  • the method 200 can be executed by a terminal (such as a remote UE) but is not limited to, specifically, the method 200 can be executed by Executed by hardware and/or software installed in the terminal.
  • the method 200 may at least include the following steps.
  • the reconfiguration message (which can also be understood as a handover command) is used to instruct the remote UE to switch from a first path to a second path, and the first path includes the direct connection between the remote UE and the first base station. connection, the second path includes the remote UE connecting with the second base station through the first relay UE.
  • the first path may be a direct connection between the terminal 11 and the base station 12
  • the second path may be an indirect connection between the terminal 11 and the base station 12 through another terminal 11 .
  • the aforementioned first base station and second base station may be the same base station, or may be different base stations, which are not limited in this embodiment.
  • the reconfiguration information may also indicate information of at least one first relay UE, etc., For example, the identification information of the first relay UE.
  • the first relay UE may be any one of the multiple relay UEs.
  • the first relay UE may be configured through a protocol agreement or high-level signaling, etc., which is not limited here.
  • the target timer is used for the remote UE to determine the handover result (such as handover failure, handover success, handover in progress) when switching from the first path to the second path, so that the The remote UE can know the switching result of the communication path based on the running state of the target timer, so as to ensure the smooth execution of the communication path switching procedure.
  • the starting timing of the target timer may be specified by a protocol or configured by high-level signaling, which is not limited herein.
  • the target timer includes any one of the following (1)-(2).
  • the timer is dedicated for the remote UE to switch from the first path to the second path.
  • the value of the timer may be specified by a protocol or configured by high-level signaling or by a network-side device.
  • the specified timer may be an existing timer, such as T304.
  • the value of the specified timer is specially adapted to the switching process of switching from the first path to the second path.
  • the value of the specified timer is the first time
  • the value of the specified timer is the second time
  • the second time is different from the first time, (for example, the first time is greater than the second time or the first time is less than the second time ), or the second time is the same as the first time.
  • the value of the specified timer may be agreed in a protocol or configured by a base station.
  • the remote UE starts the target timer by receiving the reconfiguration message, and in the process of switching from the first path to the second path based on the reconfiguration message, thereby,
  • the remote UE can be made aware of the switching result of the communication path, thereby ensuring the smooth execution of the communication path switching procedure.
  • FIG. 3 it is a schematic flowchart of a method 300 for switching a communication path provided by an exemplary embodiment of the present application.
  • the method 300 can be executed by a terminal (such as a remote UE) but is not limited to, specifically, a method installed in the terminal can be used. Hardware and/or software implementation.
  • the method 300 may at least include the following steps.
  • the reconfiguration message is used to instruct the remote UE to switch from a first path to a second path, where the first path includes a direct connection between the remote UE and the first base station, and the second path includes all
  • the remote UE is connected to the second base station through the first relay UE.
  • the remote The end UE may select a candidate first relay UE from the plurality of relay UEs based on the relay reselection process, and then attempt to perform a PC5 connection with the candidate first relay UE, so as to realize the switching of the communication path.
  • the target timer is used for the remote UE to determine the switching result when switching from the first path to the second path.
  • S320 may include, but not limited to, S321 and S322 as a possible implementation manner in this embodiment, except for the relevant description in Method Embodiment 200, as follows.
  • the process of switching from the first path to the second path may include, but is not limited to, establishing a PC5 connection between the remote UE and the first relay UE (that is, a Sidelink link connection, may include PC5-S connection and/or PC5-RRC connection, etc.), the remote UE sends a radio resource control (Radio Resource Control, RRC) reconfiguration message, the first relay UE initiates a random access process, etc., There is no restriction here.
  • a PC5 connection between the remote UE and the first relay UE that is, a Sidelink link connection, may include PC5-S connection and/or PC5-RRC connection, etc.
  • RRC Radio Resource Control
  • the remote UE may determine that the path switching is successful, and stop the target timer.
  • the remote UE successfully establishes a PC5 connection with the first relay UE.
  • the remote UE can successfully establish a PC5 connection with at least one (or any one) relay UE among the multiple relay UEs
  • a PC5 connection including a PC5-S connection and/or a PC5-RRC connection
  • the remote UE may try to connect with one or more other relay UEs. If at least one PC5 connection is established successfully, it is determined that the remote UE and the first relay UE successfully establish a PC5 connection.
  • the target timer may be suspended; and when the remote UE communicates with the first relay When the UE successfully establishes the PC5 connection, it continues to run the target timer.
  • the remote UE may successfully send the RRC reconfiguration message to the fourth base station through the first relay UE.
  • the fourth base station and the second base station may be the same or different, which is not limited herein.
  • the first relay UE successfully completes the random access procedure to the fifth base station.
  • the fifth base station may be the same as or different from the base station that sends the reconfiguration message.
  • the fifth base station may be the same as or different from the second base station, which is not limited herein.
  • the remote UE when receiving the reconfiguration message, the remote UE starts a target timer, and then switches from the first path to the second path based on the reconfiguration message, and finally, When a predetermined condition is satisfied, the target timer is stopped, thereby further ensuring smooth execution of the communication path switching procedure.
  • FIG. 4 it is a schematic flowchart of a method 400 for switching a communication path provided by an exemplary embodiment of the present application.
  • the method 400 may be executed by a terminal, but may be executed by hardware and/or software installed in the terminal. .
  • the method 400 may at least include the following steps.
  • the reconfiguration message is used to instruct the remote UE to switch from a first path to a second path, where the first path includes a direct connection between the remote UE and the first base station, and the second path includes all
  • the remote UE is connected to the second base station through the first relay UE.
  • the target timer is used for the remote UE to determine the switching result when switching from the first path to the second path.
  • the implementation process of S420 may include but not limited to S421 and S422 , the content is as follows.
  • the remote UE can successfully establish a PC5 connection with at least one (or any one) relay UE among the multiple relay UEs
  • a PC5 connection that is, a Sidelink link connection, including a PC5-S connection and/or a PC5-RRC connection.
  • the remote UE described in S422 may include, but not limited to, the remote UE successfully sending an RRC reconfiguration message, the The first relay UE initiates a random access procedure and the like.
  • the remote UE may determine that the path switching is successful, and stop the target timer.
  • the remote UE successfully sends an RRC reconfiguration message to the fourth base station.
  • the remote UE may successfully send the RRC reconfiguration message to the fourth base station through the first relay UE.
  • the fourth base station and the second base station may be the same or different, which is not limited herein.
  • the fifth base station may be the same as or different from the base station that sends the reconfiguration message.
  • the fifth base station may be the same as or different from the second base station, which is not limited herein.
  • the target timer is started, and then based on the reconfiguration message, the first path is sent to the first relay UE.
  • the two paths are switched, and finally, when a predetermined condition is satisfied, the target timer is stopped, thereby further ensuring the smooth execution of the communication path switching procedure.
  • FIG. 5 it is a schematic flowchart of a method 500 for switching a communication path provided by an exemplary embodiment of the present application.
  • the method 500 can be executed by a terminal (such as a remote UE) but is not limited to, specifically, a method installed in the terminal can be used. Hardware and/or software implementation.
  • the method 500 may at least include the following steps.
  • the reconfiguration message is used to instruct the remote UE to switch from a first path to a second path, where the first path includes a direct connection between the remote UE and the first base station, and the second path includes all the remote UE is connected to the second base station through the first relay UE;
  • the target timer is used for the remote UE to determine the switching result when switching from the first path to the second path.
  • the remote UE initiates an RRC connection re-establishment procedure (RRC re-establishment procedure).
  • the remote UE initiates a switching failure reporting process, and reports information related to path switching failure.
  • the fact that the remote UE reports failure-related information to the base station refers to the situation in which the remote UE can still maintain connection with the original base station during the switching process of the communication path.
  • the remote UE is in the communication path.
  • the connection with the original base station is not disconnected (such as configuring the DAPS-Dual Active Protocol Stack bearer), or, the base station that initiates the path switch is one of the base stations of the remote UE (such as the Master Cell Group). , MCG) or Secondary Cell Group (Secondary Cell Group, SCG)), the remote UE is also connected to another base station (such as SCG or MCG) at the same time, and can report to another base station.
  • MCG Master Cell Group
  • SCG Secondary Cell Group
  • the information related to the path handover failure may include an identity (Identity, ID) corresponding to the first relay UE that fails the handover, the reason for the handover failure, etc., which is not limited.
  • the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected second relay UE.
  • the second relay UE is any one of the following (3a)-(3b).
  • the remote UE may perform relay reselection based on a relay reselection process.
  • the second relay UE obtained based on the foregoing (3a) and (3b) may be the same or different, which is not limited herein.
  • the remote UE may always try to communicate with the new The relay UE (ie the aforementioned second relay UE) establishes a connection.
  • the relay UE ie the aforementioned second relay UE
  • the first value may be agreed in a protocol or configured by a base station, or may be determined according to the number of relay UEs indicated by the reconfiguration message, which is not limited herein.
  • the remote UE may execute At least one of (1)-(2) below.
  • the remote UE initiates an RRC connection reestablishment process.
  • the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected third relay UE.
  • the third relay UE may be any one of the following (2a) or (2b).
  • the remote UE may determine whether to perform a subsequent handover operation, such as whether to initiate an RRC connection reestablishment process, whether to initiate an RRC connection re-establishment process, or not to initiate an RRC connection re-establishment process, according to whether the target timer times out and/or whether the number of PC5 connections exceeds a predetermined value. Following the UE reselection process, etc., it is possible to further ensure the reliable progress of the handover process and improve the performance of the wireless communication system.
  • the foregoing method embodiments 200-500 provided in this embodiment may be applicable to the L2 architecture or the L3 architecture.
  • the characteristics of the L2 architecture are: the relay UE does not have a complete protocol stack for the data it relays, that is, except for Radio Link Control (Radio Link Control, RLC), Media Access Control (Media Access Control, MAC) and In addition to the basic layer 2 (L2) transmission protocol stack of physical (PHY), there is no corresponding protocol such as RRC, Service Data Adaptation Protocol (SDAP), Packet Data Convergence Protocol (PDCP), etc. stack, and only use the RLC bearer (bearer) to carry and transmit the data of the remote UE.
  • RLC Radio Link Control
  • MAC Media Access Control
  • PHY physical
  • RRC Service Data Adaptation Protocol
  • PDCP Packet Data Convergence Protocol
  • the relay UE has a complete protocol stack, that is, in addition to the basic L2 transmission protocol stacks such as RLC, MAC and PHY, it also has protocol stacks such as RRC, SDAP, PDCP (for example, not all of them have ), which is used to carry and transmit the data of the remoteUE.
  • the basic L2 transmission protocol stacks such as RLC, MAC and PHY
  • protocol stacks such as RRC, SDAP, PDCP (for example, not all of them have ), which is used to carry and transmit the data of the remoteUE.
  • the execution subject may be a communication path switching apparatus, or a control module in the communication path switching apparatus for executing the communication path switching method.
  • a method for switching a communication path performed by a device for switching a communication path is used as an example to describe the device for switching a communication path provided by the embodiment of the present application.
  • the apparatus 600 includes: a receiving module 610, configured to receive a reconfiguration message, the reconfiguration message It is used to instruct the remote UE to switch from a first path to a second path, where the first path includes a direct connection between the remote UE and the first base station, and the second path includes the remote UE passing through the first path.
  • a receiving module 610 configured to receive a reconfiguration message, the reconfiguration message It is used to instruct the remote UE to switch from a first path to a second path, where the first path includes a direct connection between the remote UE and the first base station, and the second path includes the remote UE passing through the first path.
  • the relay UE is connected to the second base station; the switching module 620 is configured to start a target timer in the process of switching from the first path to the second path based on the reconfiguration message, wherein the target The timer is used for the remote UE to determine the switching result when switching from the first path to the second path.
  • the target timer includes any one of the following: a timer dedicated to switching the remote UE from the first path to the second path; switching from the first path to the third path
  • the specified timer used when the third path includes a direct connection between the remote UE and the third base station.
  • the switching module 620 is configured to start the target timer in the case of receiving the reconfiguration message; and based on the reconfiguration message, from the first path to the second Path switching.
  • the switching module 620 is further configured to stop the target timer when at least one of the following is satisfied: the remote UE successfully establishes a PC5 connection with the first relay UE; the remote UE successfully establishes a PC5 connection; The end UE successfully sends an RRC reconfiguration message to the fourth base station; the first relay UE successfully completes the random access procedure to the fifth base station.
  • the switching module 620 is further configured to suspend the target timer in the case of starting to establish a PC5 connection with the first relay UE; and when the remote UE and the first relay UE successfully When the PC5 connection is established, the target timer continues to run.
  • the switching module 620 is configured to start the target timer when the remote UE successfully establishes a PC5 connection with the first relay UE based on the reconfiguration message; and based on the reconfiguration message The reconfiguration message is switched from the first path to the second path.
  • the switching module 620 is further configured to stop the target timer when at least one of the following is satisfied: the remote UE successfully sends an RRC reconfiguration message to the fourth base station; the first middle After the UE successfully completes the random access procedure to the fifth base station.
  • the first relay UE is any one of the at least one relay UE.
  • the switching module 620 is further configured to indicate that there are multiple relay UEs in the reconfiguration message, and the remote UE can successfully establish with at least one relay UE among the multiple relay UEs.
  • the remote UE In the case of PC5 connection, it is determined that the remote UE and the first relay UE successfully establish a PC5 connection.
  • the PC5 connection includes a PC5-S connection and/or a PC5-RRC connection.
  • the switching module 620 is further configured to successfully send the RRC reconfiguration message to the fourth base station through the first relay UE.
  • the switching module 620 is further configured to, when the target timer times out, and/or when the number of PC5 connections initiated by the remote UE exceeds a first value, but is not related to the first value.
  • the relay UE successfully establishes the PC5 connection determine that the handover result is unsuccessful handover, and perform at least one of the following: the remote UE initiates an RRC connection reestablishment process; the remote UE initiates a handover failure reporting process, and reporting information related to path switching failure; the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected second relay UE.
  • the switching module 620 is further configured to, when the target timer has not expired and the remote UE has not successfully established a PC5 connection with the first relay UE, and/or, in all In the case that the number of PC5 connections initiated by the remote UE does not exceed the first value, and the remote UE has not successfully established a PC5 connection with the first relay UE, perform at least one of the following: the remote UE initiates RRC connection reestablishment process; the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected third relay UE.
  • the second relay UE or the third relay UE is any one of the following: obtained by performing relay UE reselection by the remote UE; obtained through an indication of the reconfiguration message, wherein, The second relay UE or the third relay UE is another relay UE except the first relay UE among the plurality of relay UEs indicated by the reconfiguration message.
  • the switching module 620 is further configured to select a first relay UE from the multiple relay UEs in the case that multiple relay UEs are indicated in the reconfiguration message.
  • the remote UE starts the target timer by receiving the reconfiguration message, and in the process of switching from the first path to the second path based on the reconfiguration message, and is set by In this way, the remote UE can be made aware of the switching result of the communication path, thereby ensuring the smooth execution of the communication path switching procedure.
  • the device for switching the communication path in this embodiment of the present application may be a device, a device or an electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the device for switching a communication path provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 5 , and achieve the same technical effect, which is not repeated here to avoid repetition.
  • An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, which is implemented as described in the foregoing method embodiments 200-500 Methods.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710, etc. at least part of the components.
  • the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 7042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes a touch panel 7071 and other input devices 7072 .
  • the touch panel 7071 is also called a touch screen.
  • the touch panel 7071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 701 receives the downlink data from the network side device, and then processes it to the processor 710; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 709 may be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 710.
  • the processor 710 is configured to receive a reconfiguration message, where the reconfiguration message is used to instruct the remote UE to switch from a first path to a second path, where the first path includes the remote UE and the first path.
  • the base station is directly connected, and the second path includes the remote UE connecting with the second base station through the first relay UE; in the process of switching from the first path to the second path based on the reconfiguration message , start a target timer, wherein the target timer is used for the remote UE to determine the handover result when the first path is switched to the second path.
  • the target timer includes any one of the following: a timer dedicated to switching the remote UE from the first path to the second path; switching from the first path to the third path
  • the specified timer used when the third path includes a direct connection between the remote UE and the third base station.
  • the processor 710 is configured to start the target timer in the case of receiving the reconfiguration message; and based on the reconfiguration message, send the message from the first path to the second Path switching.
  • the processor 710 is further configured to stop the target timer when at least one of the following is satisfied: the remote UE successfully establishes a PC5 connection with the first relay UE; the remote UE successfully establishes a PC5 connection; The end UE successfully sends an RRC reconfiguration message to the fourth base station; the first relay UE successfully completes the random access procedure to the fifth base station.
  • the processor 710 is further configured to suspend the target timer in the case of starting to establish a PC5 connection with the first relay UE; and when the remote UE and the first relay UE successfully When the PC5 connection is established, the target timer continues to run.
  • the processor 710 is configured to start the target timer when the remote UE successfully establishes a PC5 connection with the first relay UE based on the reconfiguration message; and based on the reconfiguration message The reconfiguration message is switched from the first path to the second path.
  • the processor 710 is further configured to stop the target timer when at least one of the following is satisfied: the remote UE successfully sends an RRC reconfiguration message to the fourth base station; the first middle After the UE successfully completes the random access procedure to the fifth base station.
  • the first relay UE is any one of the at least one relay UE.
  • the processor 710 is further configured to indicate that there are multiple relay UEs in the reconfiguration message, and the remote UE can successfully establish with at least one relay UE among the multiple relay UEs.
  • the remote UE In the case of PC5 connection, it is determined that the remote UE and the first relay UE successfully establish a PC5 connection.
  • the PC5 connection includes a PC5-S connection and/or a PC5-RRC connection.
  • the processor 710 is further configured to successfully send the RRC reconfiguration message to the fourth base station through the first relay UE.
  • the processor 710 is further configured to, when the target timer times out, and/or when the number of PC5 connections initiated by the remote UE exceeds a first value, but is not connected to the first value.
  • the relay UE successfully establishes the PC5 connection, determine that the handover result is unsuccessful handover, and perform at least one of the following: the remote UE initiates an RRC connection reestablishment process; the remote UE initiates a handover failure reporting process, and reporting information related to path switching failure; the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected second relay UE.
  • the processor 710 is further configured to, when the target timer has not expired and the remote UE has not successfully established a PC5 connection with the first relay UE, and/or, in all In the case that the number of PC5 connections initiated by the remote UE does not exceed the first value, and the remote UE has not successfully established a PC5 connection with the first relay UE, perform at least one of the following: the remote UE initiates RRC connection reestablishment process; the remote UE initiates a relay UE reselection process, and/or performs a PC5 connection with the reselected third relay UE.
  • the second relay UE or the third relay UE is any one of the following: obtained by performing relay UE reselection by the remote UE; obtained through an indication of the reconfiguration message, wherein, The second relay UE or the third relay UE is another relay UE except the first relay UE among the plurality of relay UEs indicated by the reconfiguration message.
  • the processor 710 is further configured to select a first relay UE from the multiple relay UEs in the case that multiple relay UEs are indicated in the reconfiguration message.
  • a target timer is started, thereby enabling the remote
  • the end UE is aware of the switching result of the communication path, thereby ensuring the smooth execution of the communication path switching process.
  • Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing communication path switching method embodiment is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above-mentioned communication path.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run a network-side device program or instruction to implement the above-mentioned communication path.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the embodiments of the present application also provide a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When the processor is executed, each process of the above embodiment of the communication path switching method is implemented, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.

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Abstract

本申请公开了一种通信路径的切换方法、装置及终端，属于无线通信技术领域，本申请实施例的通信路径的切换方法包括：接收重配置消息，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。

Description

通信路径的切换方法、装置及终端
交叉引用
本发明要求在2021年03月30日提交中国专利局、申请号为202110343630.9、发明名称为“通信路径的切换方法、装置及终端”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于无线通信技术领域，具体涉及一种通信路径的切换方法、装置及终端。
背景技术
如第五代新空口(5th Generation New Radio，5G NR)系统、长期演进(Long Term Evolution，LTE)系统等通信系统，均可支持副链路(Sidelink，SL)传输，即用户设备(User Equipment，UE，也就是远端UE)之间可不通过网络侧设备而直接在物理层上进行数据传输。
但对于SL中继(Relay)场景中存在的通信路径切换(Path switch)问题，如终端需要由与基站直接连接的通信路径，切换至通过中继终端与基站间接连接的通信路径，目前还缺乏一套可靠的切换流程作为支撑，以确保切换过程的顺利进行。
发明内容
本申请实施例提供一种通信路径的切换方法、装置及终端，能够解决SL中继场景中存在的通信路径切换过程无法顺利进行的问题。
第一方面，提供了一种通信路径的切换方法，由远端UE执行，所述方法包括：接收重配置消息，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第 二路径包括所述远端UE通过第一中继UE与第二基站连接；在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
第二方面，提供了一种通信路径的切换装置，所述装置包括：接收模块，用于接收重配置消息，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；切换模块，用于在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
第三方面，提供了一种终端，该终端包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法。
第五方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法。
第七方面，提供了一种计算机程序产品/程序产品，所述计算机程序/程序产品被存储在非易失的存储介质中，所述程序/程序产品被至少一个处理器执行以实现如第一方面所述的方法的步骤。
在本申请实施例中，所述远端UE通过接收重配置消息，并在基于所述重 配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，由此，能够使得远端UE清楚通信路径的切换结果，进而确保通信路径切换流程的顺利执行。
附图说明
图1是本申请一示例性实施例提供的无线通信系统的结构示意图。
图2是本申请一示例性实施例提供的通信路径的切换方法的流程示意图。
图3是本申请另一示例性实施例提供的通信路径的切换方法的流程示意图。
图4是本申请另一示例性实施例提供的通信路径的切换方法的流程示意图。
图5是本申请另一示例性实施例提供的通信路径的切换方法的流程示意图。
图6是本申请一示例性实施例提供的通信路径的切换装置的方框结构示意图。
图7是本申请一示例性实施例提供的终端的方框结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term  Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的结果示意图。无线通信系统包括终端11和网络侧设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备，可穿戴式设备包括：智能手表、手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以是基站或核心网，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(evolution Node-B，eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Networks，WLAN)接入点、WiFi节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇， 需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
其中，在一些通信场景中，远端(Remote)UE需要与网络侧设备12传输数据，但由于覆盖不佳，需要通过中继(Relay)UE为其中转，其中relayUE与网络侧设备12之间可采用Uu接口连接，relayUE和remoteUE之间可以采用旁链路(sidelink，SL)接口连接，其中，SL接口又可称为PC5接口。一般来说，relayUE是开放的，可以为任何remote UE服务。
在此情况下，下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的技术方案进行详细地说明。
需要说明的是，在本申请实施例给出的通信路径的切换方法中，根据通信场景的不同，远端UE和中继UE的角色可以互换，例如，在一些通信场景中，所述远端UE可以作为中继UE进行上下行数据转发等，在另一些通信场景下，所述中继UE也可作为远端UE，本实施例在此不做限制。
在此情况下，如图2所示，为本申请一示例性实施例提供的通信路径的切换方法200的流程示意图，该方法200可以但不限于由终端(如远端UE)执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法200至少可以包括如下步骤。
S210，接收重配置消息。
其中，所述重配置消息(也可以理解为：切换命令)用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接。例如，请再次参阅图1，所述第一路径可以为所述终端11与所述基站12直接连接，所述第二路径可以为所述终端11通过另一终端11与所述基站12间接连接。需要注意的是，前述的第一基站和第二基站可以是同一基站，也可以是不同的基站，本实施例对此不做限制。
作为一种可能的实现方式，所述重配置信息除了用于指示所述远端UE由 第一路径切换至所述第二路径之外，还可以指示至少一个第一中继UE的信息等，例如，所述第一中继UE的标识信息。
可以理解，在所述重配置消息指示有多个中继UE的情况下，所述第一中继UE可以是所述多个中继UE中的任一个。可选地，所述第一中继UE可以通过协议约定或者高层信令配置等，在此不做限制。
S220，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器。
其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果(如切换失败、切换成功、切换进行中)，由此，使得所述远端UE能够基于所述目标定时器的运行状态，清楚通信路径的切换结果，从而确保通信路径切换流程的顺利执行。可选地，关于所述目标定时器的启动时机可以由协议约定，也可以高层信令配置，在此不做限制。
本实施例中，作为一种可能的实现方式，所述目标定时器包括以下(1)-(2)中的任一项。
(1)专用于所述远端UE由所述第一路径切换至所述第二路径的定时器。
其中，该定时器是专用于所述远端UE由所述第一路径向所述第二路径切换。本实施例中，所述定时器的取值可以由协议规定或高层信令或网络侧设备配置。
(2)由所述第一路径切换至第三路径时所采用的指定定时器，其中，所述第三路径包括所述远端UE与第三基站直接连接。
其中，所述指定定时器可以是现有的定时器，如T304等。但应注意的是，在本实施例中，该指定定时器的取值是专门适配于由所述第一路径向所述第二路径切换的切换过程，例如，在由所述第一路径切换至所述第三路径(也就是所述远端UE与第三基站直接连接)时，所述指定定时器的取值为第一时间，在由所述第一路径切换至所述第二路径时，所述指定定时器的取值为第二时间，所述第二时间不同于所述第一时间，(如第一时间大于所述第二时间或所述第 一时间小于第二时间)，或者，所述第二时间与所述第一时间相同。可选地，所述指定定时器的取值可以由协议约定或基站配置等。
本实施例中，所述远端UE通过接收重配置消息，并在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，由此，能够使得远端UE清楚通信路径的切换结果，进而确保通信路径切换流程的顺利执行。
如图3所示，为本申请一示例性实施例提供的通信路径的切换方法300的流程示意图，该方法300可以但不限于由终端(如远端UE)执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法300至少可以包括如下步骤。
S310，接收重配置消息。
其中，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接。
可以理解，S310的实现过程除了可参照前述方法实施例200中的相关描述之外，作为一种可能的实现方式，在所述重配置消息中指示多个中继UE的情况下，所述远端UE可以基于中继重选过程从所述多个中继UE中选取候选的第一中继UE，再试图与该候选的第一中继UE进行PC5连接，以实现通信路径的切换。
S320，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器。
其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
可以理解，S320的实现过程除了可参照方法实施例200中的相关描述之外，作为本实施例中的一种可能的实现方式，S320的实现过程可以包括但不限于S321和S322，内容如下。
S321，在接收到所述重配置消息的情况下，启动所述目标定时器。
其中，关于S321中所述的重配置消息、目标定时器的相关描述可参照前述方法实施例200中的相关描述，在此不再赘述。
S322，基于所述述重配置消息，由所述第一路径向所述第二路径切换。
其中，在由所述第一路径向所述第二路径切换的过程中，可以包括但不限于所述远端UE与所述第一中继UE建立PC5连接(也就是，Sidelink链路连接，可以包括PC5-S连接和/或PC5-RRC连接等)、所述远端UE发送无线资源控制(Radio Resource Control，RRC)重配置消息、所述第一中继UE发起随机接入过程等，在此不做限制。
在此情况下，作为一种可能的实现方式，在满足以下(1)-(3)中至少一项的情况下，所述远端UE可判定路径切换成功，以及停止所述目标定时器。
(1)所述远端UE与所述第一中继UE成功建立PC5连接。
可以理解，在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个(或任意一个)中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接(包括PC5-S连接和/或PC5-RRC连接)。
例如，如果所述重配置消息指示有多个中继UE的信息，那么当远端UE与其中一个中继UE建立PC5连接失败后，远端UE可以与其他的一个或多个中继UE试图建立PC5连接，至少有一个成功，则确定所述远端UE与所述第一中继UE成功建立PC5连接。
作为一种可能的实现方式，所述远端UE在开始与第一中继UE建立PC5连接的情况下，可以暂停所述目标定时器；并在所述远端UE与所述第一中继UE成功建立PC5连接的情况下，继续运行所述目标定时器。
(2)所述远端UE成功发送RRC重配置消息给第四基站。
其中，所述远端UE可以通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。本实施例中，所述第四基站与所述第二基站可以相同， 也可以不同，在此不做限制。
(3)所述第一中继UE成功向第五基站完成了随机接入过程。
其中，所述第五基站可以与发送所述重配置消息的基站相同，也可以不同。换言之，所述第五基站可以与所述第二基站相同，也可以不同，在此不做限制。
本实施例中，所述远端UE在接收到重配置消息的情况下，启动目标定时器，再基于所述重配置消息，由所述第一路径向所述第二路径进行切换，最后，在满足预定条件地情况下，停止所述目标定时器，由此，能够进一步确保通信路径切换流程的顺利执行。
如图4所示，为本申请一示例性实施例提供的通信路径的切换方法400的流程示意图，该方法400可以但不限于由终端执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法400至少可以包括如下步骤。
S410，接收重配置消息。
其中，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接。
可以理解，S410的实现过程可参照前述方法实施例200和/或300中的相关描述，为避免重复，在此不再赘述。
S420，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器。
其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
可以理解，S420的实现过程除了可参照方法实施例200和/或300中的相关描述之外，作为本实施例中的一种可能的实现方式，S420的实现过程可以包括但不限于S421和S422，内容如下。
S421，在基于所述重配置消息，所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器。
其中，关于S321中所述的重配置消息、目标定时器的相关描述可参照前述方法实施例200和/或300中的相关描述，在此不再赘述。
可以理解，在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个(或任意一个)中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接(也就是，Sidelink链路连接，包括PC5-S连接和/或PC5-RRC连接)。
S422，基于所述述重配置消息，由所述第一路径向所述第二路径切换。
与前述S322类似，S422中所述的远端UE在由所述第一路径向所述第二路径切换的过程中，可以包括但不限于所述远端UE成功发送RRC重配置消息、所述第一中继UE发起随机接入过程等。
在此情况下，作为一种可能的实现方式，在满足以下(1)-(2)中至少一项的情况下，所述远端UE可判定路径切换成功，以及停止所述目标定时器。
(1)所述远端UE成功发送RRC重配置消息给第四基站。
其中，所述远端UE可以通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。本实施例中，所述第四基站与所述第二基站可以相同，也可以不同，在此不做限制。
(2)所述第一中继UE成功向第五基站完成了随机接入过程。
其中，所述第五基站可以与发送所述重配置消息的基站相同，也可以不同。换言之，所述第五基站可以与所述第二基站相同，也可以不同，在此不做限制。
本实施例中，在所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器，再基于所述重配置消息，由所述第一路径向所述第二路径进行切换，最后，在满足预定条件地情况下，停止所述目标定时器，由此，能够进一步确保通信路径切换流程的顺利执行。
如图5所示，为本申请一示例性实施例提供的通信路径的切换方法500的流程示意图，该方法500可以但不限于由终端(如远端UE)执行，具体可由安装于终端中的硬件和/或软件执行。本实施例中，所述方法500至少可以包括 如下步骤。
S510，接收重配置消息。
其中，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；
S520，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器。
其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
可以理解，S510和S520的实现过程可参照前述方法实施例200-400中的相关描述，为避免重复，在此不再赘述。
S530，在所述目标定时器超时的情况下，和/或，在所述远端UE发起的PC5连接次数超过第一数值、但未与所述第一中继UE成功建立PC5连接的情况下，确定所述切换结果为切换不成功，以及执行预定操作，所述预定操作包括以下(1)-(3)至少一项。
(1)所述远端UE发起RRC连接重建过程(RRC re-establishment procedure)。
(2)所述远端UE发起切换失败上报过程，以及上报路径切换失败相关的信息。
其中，所述远端UE向基站上报失败相关信息，指的是在通信路径的切换过程中，所述远端UE可以仍然与原基站保持连接的情况，如，所述远端UE在通信路径的切换过程中并不断开与原基站的连接(如配置DAPS-Dual Active Protocol Stack承载)，或，此时发起路径转换的基站为远端UE的基站之一(如主小区组(Master Cell Group，MCG)或辅小区组(Secondary Cell Group，SCG))，远端UE同时还连接着另外的基站(如SCG或MCG)，可以上报给另外的基站。
所述路径切换失败相关的信息可以包括切换失败的第一中继UE对应的标 识(Identity，ID)、切换失败的原因等，对此不做限制。
(3)所述远端UE发起中继UE重选过程，和/或，与重选到的第二中继UE进行PC5连接。
可选地，所述第二中继UE是以下(3a)-(3b)任意一项。
(3a)由所述远端UE进行中继UE重选得到，例如，所述远端UE可基于中继重选过程进行中继重选。
(3b)通过所述重配置消息指示得到，其中，所述第二中继UE或所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
可以理解，基于前述(3a)和(3b)得到的第二中继UE可以相同，也可以不同，在此不做限制。
示例性的，本实施例中，在所述目标定时器超时前，和/或，PC5连接次数未超过N(也即是第一数值)次前，所述远端UE可以一直试图与新的中继UE(即前述的第二中继UE)建立连接。其中，所述第一数值可以由协议约定或基站配置，也可以根据所述重配置消息所指示的中继UE的数量确定，在此不做限制。
进一步，除前述实现方式之外，作为一种可能的实现方式，在所述目标定时器未超时、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，和/或，在所述远端UE发起的PC5连接次数未超过第一数值、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，所述远端UE可以执行以下(1)-(2)至少一项。
(1)所述远端UE发起RRC连接重建过程。
(2)所述远端UE发起中继UE重选过程，和/或，与重选到的第三中继UE进行PC5连接。
其中，所述第三中继UE可以是以下(2a)或(2b)任意一项。
(2a)由所述远端UE进行中继UE重选得到。
(2b)通过所述重配置消息指示得到，其中，所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
需要理解，关于本实现方式的实现过程可参照前述S530的实现过程，例如，所述第三中继UE的相关描述可参照前述对所述第二中继UE的描述……，为避免重复，在此不再赘述。
本实施例中，所述远端UE可根据所述目标定时器是否超时，和/或，PC5连接次数是否超过预定值，确定是否执行后续切换操作，如是否发起RRC连接重建过程、是否发起中继UE重选过程等，由此，可进一步确保切换流程的可靠进行，提供无线通信系统性能。
另外，本实施例给出的前述方法实施例200-500，可以适用于L2架构，也可以适用于L3架构。其中，L2架构的特点是：中继UE对其中继的数据并不具有完整的协议栈，即除了无线链路控制(Radio Link Control，RLC)、媒体接入控制(Media Access Control，MAC)和物理(PHY)这些基本的层2(L2)传输协议栈以外，并没有对应的RRC、服务数据适应协议(Service Data Adaptation Protocol，SDAP)、分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)等协议栈，只用RLC承载(bearer)对远端UE的数据进行承载和传输。
L3架构的特点是：中继UE具有完整的协议栈，即除了RLC、MAC和PHY这些基本的L2传输协议栈以外，也具有RRC、SDAP、PDCP等协议栈(举例，不一定所有的都有)，用于对remoteUE的数据进行承载和传输。
需要说明的是，本申请实施例提供的通信路径的切换方法，执行主体可以为通信路径的切换装置，或者，该通信路径的切换装置中的用于执行通信路径的切换方法的控制模块。本申请实施例中以通信路径的切换装置执行通信路径的切换方法为例，说明本申请实施例提供通信路径的切换装置。
如图6所示，为本申请一示例性实施例提供的通信路径的切换装置600的方框结构示意图，所述装置600包括：接收模块610，用于接收重配置消息， 所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；切换模块620，用于在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
可选地，所述目标定时器包括以下任一项：专用于所述远端UE由所述第一路径切换至所述第二路径的定时器；由所述第一路径切换至第三路径时所采用的指定定时器，其中，所述第三路径包括所述远端UE与第三基站直接连接。
可选地，所述切换模块620用于在接收到所述重配置消息的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
可选地，所述切换模块620还用于在满足以下至少一项的情况下，停止所述目标定时器：所述远端UE与所述第一中继UE成功建立PC5连接；所述远端UE成功发送RRC重配置消息给第四基站；所述第一中继UE成功向第五基站完成了随机接入过程。
可选地，所述切换模块620还用于在开始与第一中继UE建立PC5连接的情况下，暂停所述目标定时器；以及在所述远端UE与所述第一中继UE成功建立PC5连接的情况下，继续运行所述目标定时器。
可选地，所述切换模块620用于在基于所述重配置消息，所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
可选地，所述切换模块620还用于在满足以下至少一项的情况下，停止所述目标定时器：所述远端UE成功发送RRC重配置消息给第四基站；所述第一中继UE成功向第五基站完成了随机接入过程。
可选地，在所述重配置消息指示有至少一个中继UE的情况下，所述第一 中继UE是所述至少一个中继UE中的任一个。
可选地，所述切换模块620还用于在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接。
可选地，所述PC5连接包括PC5-S连接和/或PC5-RRC连接。
可选地，所述切换模块620还用于通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。
可选地，所述切换模块620还用于在所述目标定时器超时的情况下，和/或，在所述远端UE发起的PC5连接次数超过第一数值、但未与所述第一中继UE成功建立PC5连接的情况下，确定所述切换结果为切换不成功，以及执行以下至少一项：所述远端UE发起RRC连接重建过程；所述远端UE发起切换失败上报过程，以及上报路径切换失败相关的信息；所述远端UE发起中继UE重选过程，和/或，与重选到的第二中继UE进行PC5连接。
可选地，所述切换模块620还用于在所述目标定时器未超时、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，和/或，在所述远端UE发起的PC5连接次数未超过第一数值、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，执行以下至少一项：所述远端UE发起RRC连接重建过程；所述远端UE发起中继UE重选过程，和/或，与重选到的第三中继UE进行PC5连接。
可选地，所述第二中继UE或所述第三中继UE是以下任意一项：由所述远端UE进行中继UE重选得到；通过所述重配置消息指示得到，其中，所述第二中继UE或所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
可选地，所述切换模块620还用于在所述重配置消息中指示多个中继UE的情况下，从所述多个中继UE中选取第一中继UE。
在本申请实施例中，所述远端UE通过接收重配置消息，并在基于所述重 配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，由此，能够使得远端UE清楚通信路径的切换结果，进而确保通信路径切换流程的顺利执行。
本申请实施例中的通信路径的切换装置可以是装置，具有操作系统的装置或电子设备，也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例提供的通信路径的切换装置能够实现图2至图5的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如前述方法实施例200-500中所述的方法。该终端实施例是与上述终端侧方法实施例对应的，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、以及处理器710等中的至少部分部件。
本领域技术人员可以理解，终端700还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图7中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元704可以包括图形处理器 (Graphics Processing Unit，GPU)1041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071，也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元701将来自网络侧设备的下行数据接收后，给处理器710处理；另外，将上行的数据发送给网络侧设备。通常，射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器709可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器710可包括一个或多个处理单元；可选的，处理器710可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
其中，处理器710，用于接收重配置消息，所述重配置消息用于指示所述 远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
可选地，所述目标定时器包括以下任一项：专用于所述远端UE由所述第一路径切换至所述第二路径的定时器；由所述第一路径切换至第三路径时所采用的指定定时器，其中，所述第三路径包括所述远端UE与第三基站直接连接。
可选地，所述处理器710用于在接收到所述重配置消息的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
可选地，所述处理器710还用于在满足以下至少一项的情况下，停止所述目标定时器：所述远端UE与所述第一中继UE成功建立PC5连接；所述远端UE成功发送RRC重配置消息给第四基站；所述第一中继UE成功向第五基站完成了随机接入过程。
可选地，所述处理器710还用于在开始与第一中继UE建立PC5连接的情况下，暂停所述目标定时器；以及在所述远端UE与所述第一中继UE成功建立PC5连接的情况下，继续运行所述目标定时器。
可选地，所述处理器710用于在基于所述重配置消息，所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
可选地，所述处理器710还用于在满足以下至少一项的情况下，停止所述目标定时器：所述远端UE成功发送RRC重配置消息给第四基站；所述第一中继UE成功向第五基站完成了随机接入过程。
可选地，在所述重配置消息指示有至少一个中继UE的情况下，所述第一中继UE是所述至少一个中继UE中的任一个。
可选地，所述处理器710还用于在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接。
可选地，所述PC5连接包括PC5-S连接和/或PC5-RRC连接。
可选地，所述处理器710还用于通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。
可选地，所述处理器710还用于在所述目标定时器超时的情况下，和/或，在所述远端UE发起的PC5连接次数超过第一数值、但未与所述第一中继UE成功建立PC5连接的情况下，确定所述切换结果为切换不成功，以及执行以下至少一项：所述远端UE发起RRC连接重建过程；所述远端UE发起切换失败上报过程，以及上报路径切换失败相关的信息；所述远端UE发起中继UE重选过程，和/或，与重选到的第二中继UE进行PC5连接。
可选地，所述处理器710还用于在所述目标定时器未超时、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，和/或，在所述远端UE发起的PC5连接次数未超过第一数值、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，执行以下至少一项：所述远端UE发起RRC连接重建过程；所述远端UE发起中继UE重选过程，和/或，与重选到的第三中继UE进行PC5连接。
可选地，所述第二中继UE或所述第三中继UE是以下任意一项：由所述远端UE进行中继UE重选得到；通过所述重配置消息指示得到，其中，所述第二中继UE或所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
可选地，所述处理器710还用于在所述重配置消息中指示多个中继UE的情况下，从所述多个中继UE中选取第一中继UE。
在本申请实施例中，通过接收重配置消息，并在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，由此，能够使 得远端UE清楚通信路径的切换结果，进而确保通信路径切换流程的顺利执行。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述通信路径的切换方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行网络侧设备程序或指令，实现上述通信路径的切换方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时，实现上述通信路径的切换方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。 另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (32)

  1. 一种通信路径的切换方法，由远端UE执行，所述方法包括：
    接收重配置消息，所述重配置消息用于指示所述远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；
    在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
  2. 如权利要求1所述的方法，其中，所述目标定时器包括以下任一项：
    专用于所述远端UE由所述第一路径切换至所述第二路径的定时器；
    由所述第一路径切换至第三路径时所采用的指定定时器，其中，所述第三路径包括所述远端UE与第三基站直接连接。
  3. 如权利要求1所述的方法，其中，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器的步骤，包括：
    在接收到所述重配置消息的情况下，启动所述目标定时器；
    基于所述述重配置消息，由所述第一路径向所述第二路径切换。
  4. 如权利要求3所述的方法，其中，由所述第一路径向所述第二路径切换之后，所述方法还包括：
    在满足以下至少一项的情况下，停止所述目标定时器：
    所述远端UE与所述第一中继UE成功建立PC5连接；
    所述远端UE成功发送RRC重配置消息给第四基站；
    所述第一中继UE成功向第五基站完成了随机接入过程。
  5. 如权利要求3所述的方法，其中，由所述第一路径向所述第二路径切换的步骤之后，所述方法还包括：
    在开始与第一中继UE建立PC5连接的情况下，暂停所述目标定时器；
    在所述远端UE与所述第一中继UE成功建立PC5连接的情况下，继续运 行所述目标定时器。
  6. 如权利要求1所述的方法，其中，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器的步骤，包括：
    在基于所述重配置消息，所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器；
    基于所述述重配置消息，由所述第一路径向所述第二路径切换。
  7. 如权利要求6所述的方法，其中，基于所述述重配置消息，由所述第一路径向所述第二路径切换的步骤之后，所述方法还包括：
    在满足以下至少一项的情况下，停止所述目标定时器：
    所述远端UE成功发送RRC重配置消息给第四基站；
    所述第一中继UE成功向第五基站完成了随机接入过程。
  8. 如权利要求4-6中任一项所述的方法，其中，在所述重配置消息指示有至少一个中继UE的情况下，所述第一中继UE是所述至少一个中继UE中的任一个。
  9. 如权利要求6所述的方法，其中，确定所述远端UE与第一中继UE成功建立PC5连接，包括：
    在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接。
  10. 如权利要求4-9中任一项所述的方法，其中，所述PC5连接包括PC5-S连接和/或PC5-RRC连接。
  11. 如权利要求4或7所述的方法，其中，所述远端UE成功发送RRC重配置消息给第四基站，包括：
    所述远端UE通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。
  12. 如权利要求1-3中任一项所述的方法，其中，在基于所述重配置消息， 由所述第一路径向所述第二路径切换的过程中，启动目标定时器的步骤之后，所述方法还包括：
    在所述目标定时器超时的情况下，和/或，在所述远端UE发起的PC5连接次数超过第一数值、但未与所述第一中继UE成功建立PC5连接的情况下，确定所述切换结果为切换不成功，以及执行以下至少一项：
    所述远端UE发起RRC连接重建过程；
    所述远端UE发起切换失败上报过程，以及上报路径切换失败相关的信息；
    所述远端UE发起中继UE重选过程，和/或，与重选到的第二中继UE进行PC5连接。
  13. 如权利要求1-3中任一项所述的方法，其中，在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器的步骤之后，所述方法还包括：
    在所述目标定时器未超时、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，和/或，在所述远端UE发起的PC5连接次数未超过第一数值、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，执行以下至少一项：
    所述远端UE发起RRC连接重建过程；
    所述远端UE发起中继UE重选过程，和/或，与重选到的第三中继UE进行PC5连接。
  14. 如权利要求12或13中所述的方法，其中，所述第二中继UE或所述第三中继UE是以下任意一项：
    由所述远端UE进行中继UE重选得到；
    通过所述重配置消息指示得到，其中，所述第二中继UE或所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
  15. 如权利要求1-3中任一项所述的方法，其中，在基于所述重配置消息， 由所述第一路径向所述第二路径切换的过程中，启动目标定时器的步骤之前，所述方法还包括：
    在所述重配置消息中指示多个中继UE的情况下，从所述多个中继UE中选取第一中继UE。
  16. 一种通信路径的切换装置，所述装置包括：
    接收模块，用于接收重配置消息，所述重配置消息用于指示远端UE由第一路径切换到第二路径，所述第一路径包括所述远端UE与第一基站直接连接，所述第二路径包括所述远端UE通过第一中继UE与第二基站连接；
    切换模块，用于在基于所述重配置消息，由所述第一路径向所述第二路径切换的过程中，启动目标定时器，其中，所述目标定时器用于所述远端UE确定由所述第一路径向所述第二路径切换时的切换结果。
  17. 如权利要求16所述的装置，其中，所述目标定时器包括以下任一项：
    专用于所述远端UE由所述第一路径切换至所述第二路径的定时器；
    由所述第一路径切换至第三路径时所采用的指定定时器，其中，所述第三路径包括所述远端UE与第三基站直接连接。
  18. 如权利要求16所述的装置，其中，所述切换模块用于在接收到所述重配置消息的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
  19. 如权利要求18所述的装置，其中，所述切换模块还用于在满足以下至少一项的情况下，停止所述目标定时器：
    所述远端UE与所述第一中继UE成功建立PC5连接；
    所述远端UE成功发送RRC重配置消息给第四基站；
    所述第一中继UE成功向第五基站完成了随机接入过程。
  20. 如权利要求18所述的装置，其中，所述切换模块还用于在开始与第一中继UE建立PC5连接的情况下，暂停所述目标定时器；以及在所述远端UE与所述第一中继UE成功建立PC5连接的情况下，继续运行所述目标定时器。
  21. 如权利要求16所述的装置，其中，所述切换模块用于在基于所述重配置消息，所述远端UE与第一中继UE成功建立PC5连接的情况下，启动所述目标定时器；以及基于所述述重配置消息，由所述第一路径向所述第二路径切换。
  22. 如权利要求21所述的装置，其中，所述切换模块还用于在满足以下至少一项的情况下，停止所述目标定时器：
    所述远端UE成功发送RRC重配置消息给第四基站；
    所述第一中继UE成功向第五基站完成了随机接入过程。
  23. 如权利要求19-21中任一项所述的装置，其中，在所述重配置消息指示有至少一个中继UE的情况下，所述第一中继UE是所述至少一个中继UE中的任一个。
  24. 如权利要求23所述的装置，其中，所述切换模块还用于在所述重配置消息指示有多个中继UE、且所述远端UE能够与所述多个中继UE中的至少一个中继UE成功建立PC5连接的情况下，确定所述远端UE与所述第一中继UE成功建立PC5连接。
  25. 如权利要求19-24中任一项所述的装置，其中，所述PC5连接包括PC5-S连接和/或PC5-RRC连接。
  26. 如权利要求19或22所述的装置，其中，所述切换模块还用于通过所述第一中继UE成功发送所述RRC重配置消息给所述第四基站。
  27. 如权利要求16-18中任一项所述的装置，其中，所述切换模块还用于在所述目标定时器超时的情况下，和/或，在所述远端UE发起的PC5连接次数超过第一数值、但未与所述第一中继UE成功建立PC5连接的情况下，确定所述切换结果为切换不成功，以及执行以下至少一项：
    所述远端UE发起RRC连接重建过程；
    所述远端UE发起切换失败上报过程，以及上报路径切换失败相关的信息；
    所述远端UE发起中继UE重选过程，和/或，与重选到的第二中继UE进 行PC5连接。
  28. 如权利要求16-18中任一项所述的装置，其中，所述切换模块还用于在所述目标定时器未超时、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，和/或，在所述远端UE发起的PC5连接次数未超过第一数值、且所述远端UE未与所述第一中继UE成功建立PC5连接的情况下，执行以下至少一项：
    所述远端UE发起RRC连接重建过程；
    所述远端UE发起中继UE重选过程，和/或，与重选到的第三中继UE进行PC5连接。
  29. 如权利要求27或28中所述的装置，其中，所述第二中继UE或所述第三中继UE是以下任意一项：
    由所述远端UE进行中继UE重选得到；
    通过所述重配置消息指示得到，其中，所述第二中继UE或所述第三中继UE是通过所述重配置消息指示的多个中继UE中除所述第一中继UE之外的其他中继UE。
  30. 如权利要求16-18中任一项所述的装置，其中，所述切换模块还用于在所述重配置消息中指示多个中继UE的情况下，从所述多个中继UE中选取第一中继UE。
  31. 一种终端，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至15任一项所述的通信路径的切换方法的步骤。
  32. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-15任一项所述的通信路径的切换方法的步骤。
PCT/CN2022/083111 2021-03-30 2022-03-25 通信路径的切换方法、装置及终端 WO2022206612A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093133A1 (en) * 2023-04-06 2024-05-10 Lenovo (Beijing) Limited Terminal devices, network device, and methods for multi-path communications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017219289A1 (zh) * 2016-06-22 2017-12-28 华为技术有限公司 一种通信路径变更方法及设备
WO2018006253A1 (zh) * 2016-07-04 2018-01-11 华为技术有限公司 一种无线链路失败处理方法、相关设备及通信系统
CN109417695B (zh) * 2017-01-10 2020-10-23 华为技术有限公司 一种通信路径转换方法及设备
US20210051556A1 (en) * 2019-08-16 2021-02-18 Industrial Technology Research Institute User equipment, communication system, and handling method for handover failure
WO2022042146A1 (zh) * 2020-08-25 2022-03-03 华为技术有限公司 一种通信方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017219289A1 (zh) * 2016-06-22 2017-12-28 华为技术有限公司 一种通信路径变更方法及设备
WO2018006253A1 (zh) * 2016-07-04 2018-01-11 华为技术有限公司 一种无线链路失败处理方法、相关设备及通信系统
CN109417695B (zh) * 2017-01-10 2020-10-23 华为技术有限公司 一种通信路径转换方法及设备
US20210051556A1 (en) * 2019-08-16 2021-02-18 Industrial Technology Research Institute User equipment, communication system, and handling method for handover failure
WO2022042146A1 (zh) * 2020-08-25 2022-03-03 华为技术有限公司 一种通信方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024093133A1 (en) * 2023-04-06 2024-05-10 Lenovo (Beijing) Limited Terminal devices, network device, and methods for multi-path communications

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