WO2024027748A1 - 数据传输方法及装置、终端 - Google Patents

数据传输方法及装置、终端 Download PDF

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Publication number
WO2024027748A1
WO2024027748A1 PCT/CN2023/110693 CN2023110693W WO2024027748A1 WO 2024027748 A1 WO2024027748 A1 WO 2024027748A1 CN 2023110693 W CN2023110693 W CN 2023110693W WO 2024027748 A1 WO2024027748 A1 WO 2024027748A1
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WIPO (PCT)
Prior art keywords
path
terminal
data transmission
direct
indirect
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PCT/CN2023/110693
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English (en)
French (fr)
Inventor
郑倩
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维沃移动通信有限公司
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Publication of WO2024027748A1 publication Critical patent/WO2024027748A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • 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
    • H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • This application belongs to the field of communication technology, and specifically relates to a data transmission method, device, and terminal.
  • a direct connection path can be established with the network side device, and data transmission processing is performed after determining that the wireless link fails.
  • establish an indirect path with the network side device and perform data transmission processing after determining that the wireless link fails.
  • Embodiments of the present application provide a data transmission method, device, and terminal, which can reduce terminal data transmission and reception interruptions and maintain business continuity.
  • the first aspect provides a data transmission method, including:
  • the first terminal transmits data with the network-side device through multiple paths.
  • the multiple paths include direct paths through which the first terminal communicates directly with the network-side device and/or the first terminal communicates with the network-side device through a second terminal.
  • the first terminal When the first terminal detects that a first path among the plurality of paths fails, it suspends or stops data transmission on the first path.
  • a data transmission device including:
  • a transmission module configured to transmit data with the network side device through multiple paths.
  • the multiple paths include direct paths through which the first terminal directly communicates with the network side device and/or the first terminal communicates with the network side device through a second path.
  • a processing module configured to suspend or stop data transmission of the first path when detecting a failure of the first path among the plurality of paths.
  • a terminal in a third aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
  • a terminal including a processor and a communication interface, wherein the communication interface is used to Multiple paths transmit data with the network-side device.
  • the multiple paths include direct paths through which the first terminal communicates directly with the network-side device and/or the first terminal communicates with the network-side device through a second terminal.
  • An indirect path for device communication; the processor is configured to suspend or stop data transmission of the first path among the plurality of paths when a failure occurs on the first path.
  • a data transmission system including: a network side device and a terminal.
  • the terminal can be used to perform the steps of the data transmission method described in the first aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.
  • a chip in a seventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. .
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect Data transfer method.
  • a multi-path connection is established between the first terminal and the network side device.
  • the first terminal can suspend or stop the data transmission of the first path. , allowing the terminal to temporarily suspend data transmission when the wireless link fails, and then continue data transmission after the wireless link is restored, that is, by establishing multiple transmission paths and pausing or stopping the path if part of the path fails. This reduces terminal data transmission and reception interruptions and maintains business continuity.
  • Figure 1 is a block diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is a schematic diagram of the relay scenario
  • Figure 3 is a schematic diagram of the SL relay architecture
  • Figure 4 is a schematic diagram of the non-SL relay architecture
  • Figure 5 is a schematic flow chart of the data transmission method according to the embodiment of the present application.
  • Figure 6 is a schematic structural diagram of a data transmission device according to an embodiment of the present application.
  • Figure 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects. It is 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" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can 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 related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • 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 this 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 much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • 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 assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • MID mobile Internet Device
  • AR augmented reality
  • VR virtual reality
  • robots wearable devices
  • WUE Vehicle User Equipment
  • PUE Pedestrian User Equipment
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices.
  • Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless access network unit.
  • Access network equipment may include a base station, a Wireless Local Area Network (WLAN) access point or a Wireless Fidelity (WiFi) node, etc.
  • the base station may be called a Node B or an Evolved Node B.
  • the base station is not limited to specific technical terms. It needs to be explained that , in the embodiment of this application, only the base station in the NR system This is introduced as an example and does not limit the specific type of base station.
  • Relay technology in wireless communication systems is to add one or more relay nodes between the base station and the terminal, which is responsible for forwarding wireless signals one or more times, that is, the wireless signal must go through multiple hops to reach it. terminal.
  • Wireless relay technology can not only expand cell coverage and make up for cell coverage blind spots, but can also increase cell capacity through spatial resource reuse.
  • Relay technology can also overcome penetration loss and improve indoor coverage quality.
  • wireless relay divides a base station-terminal link into two links: base station-relay station and relay station-terminal, thereby having the opportunity to replace a poor quality link with two links. A better quality link to obtain higher link capacity and better coverage.
  • the currently supported Relay is UE-to-Network relay, that is, one end of the Relay is connected to the UE and the other end is connected to the network side.
  • the UE connected to Relay is called remote UE (Remote UE).
  • FIG. 2 A typical relay scenario is shown in Figure 2. This is a typical UE-to-Network scenario.
  • the Remote UE needs to transmit data with the network side, but due to poor coverage, the Relay UE is found to be the relay.
  • the Relay UE The Uu interface is between the UE and the base station, and the sidelink (PC5) interface is between the Relay UE and Remote UE.
  • PC5 sidelink
  • Relay UE is open and can serve any Remote UE.
  • the Remote UE radio resource control (RRC) connection establishment process includes the following steps:
  • Step 1 Remote UE and Relay UE perform discovery process, and then establish PC5 RRC connection.
  • Step 2 The Remote UE sends an RRC Setup Request message to the base station, and the base station replies an RRC Setup message to the Remote UE. Specifically, these two messages are forwarded to the base station or Remote UE in Relay UE.
  • Step 3 Establish a signaling radio bearer 1 (SRB1) dedicated bearer between the base station and the remote UE.
  • the remote UE SRB1 dedicated bearer consists of two sections: PC5 (between remote UE and Relay UE) and Uu (between Relay UE and the base station).
  • Radio link control (RLC) channel composition Specifically, two RLC channels are used for Remote UE to send/receive SRB1 type RRC messages between the Remote UE and the base station.
  • Step 4. Remote UE sends RRC Setup Complete message to the base station. Specifically, this message is forwarded to the base station in Relay UE.
  • Step 5 Activate security between Remote UE and base station.
  • Step 6 Establish an SRB2/data radio bearer (DRB) dedicated bearer between the base station and Remote UE.
  • the Remote UE SRB2/DRB dedicated bearer consists of PC5 (between Remote UE and Relay UE) and Uu (between Relay UE and the base station) It consists of two RLC channels. Specifically, the two RLC channels are used for the Remote UE to send/receive SRB2 type RRC/NAS messages and uplink and downlink service data between the base station and the Remote UE.
  • multipath means that the Remote UE establishes an indirect path and a direct path at the same time, as shown in Figure 3.
  • connection between two UEs is not a sidelink (PC5) interface. It is assumed that the interface between them is a wired connection or an ideal inter-UE connection.
  • Multipath here means that a UE has established an indirect path and a direct path at the same time, as shown in Figure 4.
  • Primary UE also called is the anchor UE.
  • Secondary UE may also be called Helper UE or Aggregated UE.
  • indirect path is translated as indirect path, which means that Remote UE (or Primary UE, Anchor UE) passes through Relay UE (or Secondary UE, Helper UE, Aggregated UE) and Relay UE (or Secondary UE, Helper UE, The Uu air interface of Aggregated UE establishes a wireless link for RRC connection with the base station.
  • Direct path is translated as direct path, which refers to the wireless link through which Remote UE (or Primary UE, Anchor UE) establishes an RRC connection with the base station through its own Uu air interface.
  • Remote UE or Primary UE, Anchor UE
  • This embodiment of the present application provides a data transmission method, as shown in Figure 5, including:
  • Step 101 The first terminal transmits data with the network-side device through multiple paths.
  • the multiple paths include direct paths through which the first terminal directly communicates with the network-side device and/or the first terminal transmits data through a third path. 2.
  • Step 102 When the first terminal fails to detect that the first path among the plurality of paths fails, the first terminal suspends or stops the data transmission of the first path.
  • a multi-path connection is established between the first terminal and the network side device.
  • the first terminal can suspend or stop the data transmission of the first path. , allowing the terminal to temporarily suspend data transmission when the wireless link fails, and then continue data transmission after the wireless link is restored, reducing interruptions in terminal data sending and receiving and maintaining business continuity.
  • the first terminal may be a Remote UE, Primary UE or Anchor UE
  • the second terminal may be a Relay UE, Secondary UE or Helper UE.
  • Multiple paths are established between the first terminal and the serving base station, and user plane data and/or control plane data are transmitted between the first terminal and the serving base station through the multiple paths.
  • the multiple paths include at least one directly connected path and/or at least one indirect path.
  • the multiple paths may include:
  • At least one indirect path and at least one direct path are at least one indirect path and at least one direct path.
  • the first terminal suspends or stops the first path when detecting that the first path among the plurality of paths fails.
  • One path of data transmission includes:
  • the first terminal suspends data transmission on the first path when it determines that at least one of the following conditions is met:
  • the direct path configuration failure occurs, where the direct path configuration includes initial configuration and reconfiguration. During the initial configuration of the directly connected path, it is an adding operation for the first path; during the reconfiguration of the direct connected path, it is a modifying operation for the first path.
  • pausing data transmission on the first path includes at least one of the following:
  • DRB Data Radio Bearer
  • Suspending the transmission of at least one Signaling Radio Bearer (SRB) of the direct path includes suspending or suspending or deactivating all or part of the SRB transmission of the direct path, where the SRB includes at least one of the following: direct path The signaling radio bearer 1 of split signaling radio bearer 1 (referred to as Direct SRB1), the direct path signaling radio bearer 2 (referred to as Direct SRB2), the direct path part of split signaling radio bearer 1 (referred to as Direct part of split SRB1), the split signaling radio bearer 1 Let the direct path part of wireless bearer 2 (referred to as Direct part of split SRB2);
  • RLC Radio Link Control
  • the first terminal when preset recovery conditions are met, resumes data transmission on the first path, and the first terminal resumes data transmission on the first path including at least one of the following: :
  • Restoring the transmission of at least one DRB of the direct path includes continuing or resuming or activating all or part of the DRB transmission of the direct path, wherein the DRB includes at least one of the following: data radio bearer of the direct path (referred to as Direct DRB) , the direct path part of the split data wireless bearer (referred to as Direct part of split DRB);
  • Restoring the transmission of at least one SRB of the direct path includes continuing or resuming or activating all or part of the SRB transmission of the direct path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the direct path (referred to as Direct SRB1), the direct path signaling radio bearer 2 (referred to as Direct SRB2), the direct path part of split signaling radio bearer 1 (referred to as Direct part of split SRB1), the direct path part of split signaling radio bearer 2 (referred to as For Direct part of split SRB2);
  • Restoring the transmission of at least one Uu RLC channel (channel) of the direct path includes continuing or resuming or activating all or part of the Uu RLC channel transmission of the direct path.
  • recovery conditions include any of the following:
  • the RRC reconfiguration message carries the configuration information of the direct path.
  • the direct path can be configured according to the configuration information of the direct path and the data transmission of the direct path can be restored;
  • the RRC reconfiguration message carries the configuration information of the direct path.
  • the direct path can be configured according to the configuration information of the direct path and the data transmission of the direct path can be restored;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the direct path.
  • the direct path can be configured according to the obtained configuration information of the direct path and the direct path can be restored. Data transmission of path;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the direct path.
  • the direct path can be configured according to the obtained configuration information of the direct path. Resume data transfer on direct path.
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the direct path fails, the terminal can suspend the data transmission of the direct path, and then continue the data transmission after the wireless link is restored, reducing the terminal data transmission and reception. disruption and maintain business continuity.
  • the first terminal suspends or stops the first path when detecting that the first path among the plurality of paths fails.
  • Data transmission on the first path includes any of the following:
  • the first terminal stops data transmission on the first path when detecting that the wireless link between the first terminal and the second terminal fails on the first path, where the first terminal and the second terminal
  • the interface between them can be PC5 interface
  • the first terminal suspends data transmission on the first path when receiving indication information from the second terminal, and the indication information indicates that the second terminal satisfies a preset failure condition.
  • the preset failure conditions include at least one of the following:
  • the Uu air interface wireless link failure occurs in the second terminal
  • the Uu air interface radio resource control RRC connection failure occurs in the second terminal, including the following three situations: the RRC connection establishment process fails (for the situation where the second terminal is in the RRC idle state), the RRC connection recovery process fails (for the second terminal is in the RRC idle state) RRC inactive state), the RRC connection is rejected (for the situation where the second terminal is in RRC idle state or RRC inactive state);
  • the second terminal has a serving cell change, where the serving cell change includes: handover and cell selection or reselection (Cell (re-)selection).
  • the serving cell change includes: handover and cell selection or reselection (Cell (re-)selection).
  • Cell (re-)selection When the second terminal is in the RRC connected state, the serving cell changes.
  • the cell change may be a handover; when the second terminal is in a non-RRC connected state, such as an RRC idle state or an RRC inactive state, the serving cell change may be a cell selection or reselection.
  • the suspension of data transmission on the first path includes at least one of the following:
  • Suspending the transmission of at least one DRB of the indirect path includes suspending or suspending or deactivating all or part of the DRB transmission of the indirect path, wherein the DRB includes at least one of the following: data wireless transport of the indirect path (referred to as Indirect DRB), the indirect path part of the split data wireless bearer (referred to as Indirect part of split DRB);
  • Suspending the transmission of at least one SRB of the indirect path includes suspending or suspending or deactivating all or part of the SRB transmission of the indirect path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the indirect path ( Referred to as Indirect SRB1), signaling radio bearer 2 of the indirect path (referred to as Indirect SRB2), indirect path part of split signaling radio bearer 1 (referred to as Indirect part of split SRB1), indirect path of split signaling radio bearer 2 Part (referred to as Indirect part of split SRB2);
  • stopping data transmission on the first path includes at least one of the following:
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the indirect path fails, the terminal can stop the data transmission of the indirect path, and can re-establish the indirect connection after the wireless link is restored. path to continue data transmission.
  • the method further includes:
  • the first terminal resumes data transmission on the first path
  • the first terminal resumes data transmission on the first path, including at least one of the following:
  • Restoring the transmission of at least one DRB of the indirect path includes continuing or resuming or activating all or part of the DRB transmission of the indirect path, wherein the DRB includes at least one of the following: data radio bearer of the indirect path (referred to as Indirect DRB) ), separate the indirect path part of the data wireless bearer (referred to as Indirect part of split DRB);
  • Restoring the transmission of at least one SRB of the indirect path includes continuing or resuming or activating all or part of the SRB transmission of the indirect path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the indirect path (referred to as Indirect SRB1), signaling radio bearer 2 of indirect path (referred to as Indirect SRB2), indirect path part of split signaling radio bearer 1 (referred to as Indirect part of split SRB1), indirect path part of split signaling radio bearer 2 (referred to as Indirect part of split SRB1) Referred to as Indirect part of split SRB2);
  • Restoring the transmission of at least one PC5 Relay RLC channel of the indirect path includes continuing or restoring or activating all or part of the PC5 Relay RLC channel transmission of the indirect path.
  • the recovery conditions include any of the following:
  • the RRC reconfiguration message carries the indirect path.
  • Configuration information you can configure the indirect path according to the configuration information of the indirect path and restore the data transmission of the indirect path;
  • the RRC reconfiguration message sent by the serving base station is successfully applied.
  • the RRC reconfiguration message carries the configuration information of the indirect path.
  • the indirect path can be configured according to the configuration information of the indirect path and the data transmission of the indirect path can be restored;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the indirect path.
  • the indirect path can be configured according to the obtained configuration information of the indirect path, and the indirect path can be restored. Data transmission of path;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the indirect path.
  • the indirect path can be configured according to the obtained configuration information of the indirect path. Resume data transmission on indirect path.
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the indirect path fails, the terminal can suspend the data transmission of the indirect path, and then continue the data transmission after the wireless link is restored, reducing the terminal Data transmission and reception are interrupted to maintain business continuity.
  • the execution subject may be a data transmission device.
  • a data transmission device performing a data transmission method is used as an example to illustrate the data transmission device provided by the embodiment of the present application.
  • An embodiment of the present application provides a data transmission device, which is applied to a first terminal.
  • the data transmission device 200 includes:
  • the transmission module 210 is configured to transmit data with the network-side device through multiple paths.
  • the multiple paths include direct paths through which the first terminal directly communicates with the network-side device and/or the first terminal passes through a third path. 2.
  • the processing module 220 is configured to suspend or stop the data transmission of the first path among the plurality of paths when a failure occurs in the first path.
  • a multi-path connection is established between the first terminal and the network-side device. If the first path among the multiple paths fails to be detected, the first terminal can suspend or stop the data transmission of the first path. , allowing the terminal to temporarily suspend data transmission when the wireless link fails, and then continue data transmission after the wireless link is restored, thereby minimizing interruptions in data transmission and reception by the terminal.
  • the first terminal may be a Remote UE, Primary UE or Anchor UE
  • the second terminal may be a Relay UE, Secondary UE or Helper UE.
  • Multiple paths are established between the first terminal and the serving base station, and user plane data and/or control plane data are transmitted between the first terminal and the serving base station through the multiple paths.
  • the multiple paths include at least one directly connected path and/or at least one indirect path.
  • the multiple paths include:
  • At least one indirect path and at least one direct path are at least one indirect path and at least one direct path.
  • the processing module 220 is configured to If it is determined that at least one of the following conditions is met, data transmission on the first path is suspended:
  • the direct path configuration failure occurs, where the direct path configuration includes initial configuration and reconfiguration. During the initial configuration of the directly connected path, it is an adding operation for the first path; during the reconfiguration of the direct connected path, it is a modifying operation for the first path.
  • pausing data transmission on the first path includes at least one of the following:
  • Suspending the transmission of at least one data radio bearer DRB of the direct path includes suspending or suspending or deactivating all or part of the DRB transmission of the direct path, where the DRB includes at least one of the following: the data radio bearer of the direct path (referred to as Direct DRB), the direct path part of the split data wireless bearer (referred to as Direct part of split DRB);
  • Suspending the transmission of at least one signaling radio bearer SRB of the direct path includes suspending or suspending or deactivating all or part of the SRB transmission of the direct path, where the SRB includes at least one of the following: signaling radio bearer 1 of the direct path (referred to as Direct SRB1), the signaling radio bearer 2 of the direct path (referred to as Direct SRB2), the direct path part of split signaling radio bearer 1 (referred to as Direct part of split SRB1), the direct part of split signaling radio bearer 2 path part (referred to as Direct part of split SRB2);
  • the processing module 220 is configured to resume data transmission on the first path when preset restoration conditions are met. Restoring data transmission on the first path includes at least one of the following:
  • Restoring the transmission of at least one DRB of the direct path includes continuing or resuming or activating all or part of the DRB transmission of the direct path, wherein the DRB includes at least one of the following: data radio bearer of the direct path (referred to as Direct DRB) , the direct path part of the split data wireless bearer (referred to as Direct part of split DRB);
  • Restoring the transmission of at least one SRB of the direct path includes continuing or resuming or activating all or part of the SRB transmission of the direct path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the direct path (referred to as Direct SRB1), the direct path signaling radio bearer 2 (referred to as Direct SRB2), the direct path part of split signaling radio bearer 1 (referred to as Direct part of split SRB1), the direct path part of split signaling radio bearer 2 (referred to as For Direct part of split SRB2);
  • Restoring transmission of at least one Uu RLC channel of the direct path including continuing or restoring or activating the direct path All or part of the Uu RLC channel transmission.
  • the DRB includes at least one of the following:
  • the data wireless bearer of the direct connection path
  • the SRB includes at least one of the following:
  • recovery conditions include any of the following:
  • the RRC reconfiguration message carries the configuration information of the direct path.
  • the direct path can be configured according to the configuration information of the direct path and the data transmission of the direct path can be restored;
  • the RRC reconfiguration message sent by the serving base station is successfully applied.
  • the RRC reconfiguration message carries the configuration information of the direct path.
  • the direct path can be configured according to the configuration information of the direct path and the data transmission of the direct path can be restored;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the direct path.
  • the direct path can be configured according to the obtained configuration information of the direct path and the direct path can be restored. Data transmission of path;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the direct path.
  • the direct path can be configured according to the obtained configuration information of the direct path. Resume data transfer on direct path.
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the direct path fails, the terminal can suspend the data transmission of the direct path, and then continue the data transmission after the wireless link is restored, reducing the terminal data transmission and reception. disruption and maintain business continuity.
  • the processing module 220 when the first path is the indirect path, is configured to pause or stop when detecting that the first path among the multiple paths fails.
  • the data transmission of the first path includes any of the following:
  • the direct-connected path does not detect In the event of any failure, the direct path of the first terminal is working normally. Therefore, there is no need to perform any additional processing on the transmission of the direct path, that is, the transmission of the direct path can still continue.
  • the preset failure conditions include at least one of the following:
  • the Uu air interface wireless link failure occurs in the second terminal
  • the Uu air interface radio resource control RRC connection failure occurs in the second terminal, including the following three situations: the RRC connection establishment process fails (for the situation where the second terminal is in the RRC idle state), the RRC connection recovery process fails (for the second terminal is in the RRC idle state) RRC inactive state), the RRC connection is rejected (for the situation where the second terminal is in RRC idle state or RRC inactive state);
  • the second terminal has a serving cell change, where the serving cell change includes: handover and cell selection or reselection (Cell (re-)selection).
  • the serving cell change includes: handover and cell selection or reselection (Cell (re-)selection).
  • Cell (re-)selection When the second terminal is in the RRC connected state, the serving cell changes.
  • the cell change may be a handover; when the second terminal is in a non-RRC connected state, such as an RRC idle state or an RRC inactive state, the serving cell change may be a cell selection or reselection.
  • the suspension of data transmission on the first path includes at least one of the following:
  • Suspending the transmission of at least one DRB of the indirect path includes suspending or suspending or deactivating all or part of the DRB transmission of the indirect path, wherein the DRB includes at least one of the following: data radio bearer of the indirect path (referred to as Indirect DRB), the indirect path part of the split data wireless bearer (referred to as Indirect part of split DRB);
  • Suspending the transmission of at least one SRB of the indirect path includes suspending or suspending or deactivating all or part of the SRB transmission of the indirect path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the indirect path ( Referred to as Indirect SRB1), signaling radio bearer 2 of the indirect path (referred to as Indirect SRB2), indirect path part of split signaling radio bearer 1 (referred to as Indirect part of split SRB1), indirect path of split signaling radio bearer 2 Part (referred to as Indirect part of split SRB2);
  • stopping data transmission on the first path includes at least one of the following:
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the indirect path fails, the terminal can stop the data transmission of the indirect path, and can re-establish the indirect connection after the wireless link is restored. path to continue data transmission.
  • the processing module 220 is also configured to restore the Data transmission on the first path;
  • restoring the data transmission of the first path includes at least one of the following:
  • Restoring the transmission of at least one DRB of the indirect path includes continuing or resuming or activating all or part of the DRB transmission of the indirect path, wherein the DRB includes at least one of the following: data radio bearer of the indirect path (referred to as Indirect DRB) ), separate the indirect path part of the data wireless bearer (referred to as Indirect part of split DRB);
  • Restoring the transmission of at least one SRB of the indirect path includes continuing or resuming or activating all or part of the SRB transmission of the indirect path, wherein the SRB includes at least one of the following: signaling radio bearer 1 of the indirect path (referred to as Indirect SRB1), signaling radio bearer 2 of indirect path (referred to as Indirect SRB2), indirect path part of split signaling radio bearer 1 (referred to as Indirect part of split SRB1), indirect path part of split signaling radio bearer 2 (referred to as Indirect part of split SRB1) Referred to as Indirect part of split SRB2);
  • Restoring the transmission of at least one PC5 Relay RLC channel of the indirect path includes continuing or restoring or activating all or part of the PC5 Relay RLC channel transmission of the indirect path.
  • the DRB includes at least one of the following:
  • the SRB includes at least one of the following:
  • the recovery conditions include any of the following:
  • the RRC reconfiguration message After receiving the RRC reconfiguration message sent by the serving base station, the RRC reconfiguration message carries the configuration information of the first path, the indirect path can be configured according to the configuration information of the indirect path, and the data transmission of the indirect path can be restored;
  • the RRC reconfiguration message carries the configuration information of the first path, the indirect path can be configured according to the configuration information of the indirect path, and the data transmission of the indirect path can be restored;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the first path.
  • the indirect path can be configured according to the obtained configuration information of the indirect path. , resume data transmission of indirect path;
  • the RRC reconfiguration message corresponding to the RRC reconfiguration completion message carries the configuration information of the first path.
  • the indirect path can be configured based on the obtained configuration information of the indirect path. Configure and restore indirect path data transmission.
  • the terminal in a scenario where the terminal supports multi-path, if the wireless link of the indirect path fails, the terminal can suspend the data transmission of the indirect path, and then continue the data transmission after the wireless link is restored, reducing the terminal Data transmission and reception are interrupted to maintain business continuity.
  • the data transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • NAS Network Attached Storage
  • the data transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 5 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device 600, which includes a processor 601 and a memory 602.
  • the memory 602 stores programs or instructions that can be run on the processor 601.
  • each step of the above-mentioned data transmission method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, the details will not be described here.
  • An embodiment of the present application also provides a terminal.
  • the terminal includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the above is implemented. The steps of the data transmission method.
  • An embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is used to transmit data with a network side device through multiple paths, and the multiple paths include the first terminal and all The direct path through which the network side device directly communicates and/or the indirect path through which the first terminal communicates with the network side device through the second terminal; the processor is configured to detect the first path among the plurality of paths. When one path fails, data transmission on the first path is suspended or stopped.
  • FIG. 8 is a schematic diagram of the hardware structure of a terminal that implements 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, a processor 710, etc. At least some parts.
  • the terminal 700 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 710 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.
  • the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042.
  • the graphics processor 7041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • 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. Display panel 7061.
  • the user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072 . Touch panel 7071, also called 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 described again here.
  • the radio frequency unit 701 after receiving downlink data from the network side device, can transmit it to the processor 710 for processing; in addition, the radio frequency unit 701 can send uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 709 may be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 709 may include volatile memory or non-volatile memory, or memory 709 may include both volatile and non-volatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM Double Data Rate SDRAM
  • DDRSDRAM double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus
  • the processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above-mentioned modem processor may not be integrated into the processor 710.
  • the processor 710 is configured to transmit data with the network side device through multiple paths.
  • the multiple paths include direct paths for direct communication between the first terminal and the network side device and/or the A non-direct path through which the first terminal communicates with the network side device through the second terminal; in case of failure to detect a first path among the plurality of paths, suspend or stop data transmission of the first path.
  • the multiple paths include:
  • At least one indirect path and at least one direct path are at least one indirect path and at least one direct path.
  • the processor 710 when the first path is the directly connected path, the processor 710 is configured to pause or stop the first path among the plurality of paths if a failure occurs.
  • One path of data transmission includes:
  • the processor 710 is configured to suspend the data transmission of the first path if it is determined that at least one of the following conditions is met: lose:
  • pausing data transmission on the first path includes at least one of the following:
  • the processor 710 is configured to resume data transmission on the first path when preset restoration conditions are met. Restoring data transmission on the first path includes at least one of the following:
  • the DRB includes at least one of the following:
  • the data wireless bearer of the direct connection path
  • the SRB includes at least one of the following:
  • the processor 710 when the first path is the indirect path, the processor 710 is configured to pause or stop the first path among the plurality of paths if a failure occurs.
  • Data transmission on the first path includes any of the following:
  • the preset failure conditions include at least one of the following:
  • the Uu air interface wireless link failure occurs in the second terminal
  • the second terminal has a Uu air interface radio resource control RRC connection failure
  • the serving cell of the second terminal changes.
  • the suspension of data transmission on the first path includes at least one of the following:
  • stopping data transmission on the first path includes at least one of the following:
  • the processor 710 is configured to resume the data transmission of the first path if preset recovery conditions are met;
  • restoring the data transmission of the first path includes at least one of the following:
  • the DRB includes at least one of the following:
  • the SRB includes at least one of the following:
  • the recovery conditions include any of the following:
  • Embodiments of the present application also provide a readable storage medium.
  • Programs or instructions are stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above data transmission method embodiment is implemented, and the same can be achieved. The technical effects will not be repeated here to avoid repetition.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium may Is non-volatile and can also be non-transient.
  • Readable storage media may include computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical disks.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above data transmission method embodiment. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above data transmission method embodiment.
  • Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.
  • Embodiments of the present application also provide a data transmission system, including: a network side device and a terminal, where the terminal can be used to perform the steps of the data transmission method as described above.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to related technologies.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种数据传输方法及装置、终端，属于通信技术领域，本申请实施例的数据传输方法，包括：第一终端通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。

Description

数据传输方法及装置、终端
相关申请的交叉引用
本申请主张在2022年08月05日在中国提交的中国专利申请No.202210938764.X的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种数据传输方法及装置、终端。
背景技术
相关技术中，终端与网络侧设备之间只有单路径的数据传输处理方法，例如，可以与网络侧设备之间建立直连路径，在判断无线链路失败后进行数据传输处理。或者，与网络侧设备之间建立非直连路径，在判断无线链路失败后进行数据传输处理。
发明内容
本申请实施例提供一种数据传输方法及装置、终端，能够减少终端数据收发中断，保持业务连续性。
第一方面，提供了一种数据传输方法，包括：
第一终端通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
第二方面，提供了一种数据传输装置，包括：
传输模块，用于通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
处理模块，用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
第三方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储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，所述通信接口用于通过 多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；所述处理器用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
第五方面，提供了一种数据传输系统，包括：网络侧设备及终端，所述终端可用于执行如第一方面所述的数据传输方法的步骤。
第六方面，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。
第七方面，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。
第八方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/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数据传输方法。
在本申请实施例中，第一终端与网络侧设备之间建立多路径连接，在检测多个路径中的第一路径发生失败的情况下，第一终端可以暂停或停止第一路径的数据传输，使得终端可以在无线链路失败情况下暂时挂起数据传输，待无线链路恢复后再继续数据传输，即通过建立多个传输路径，并在部分路径失败的情况下暂停或停止该路径，从而减少终端数据收发中断，保持业务连续性。
附图说明
图1是本申请实施例可应用的一种无线通信系统的框图；
图2是中继场景的示意图；
图3是SL relay架构的示意图；
图4是非SL relay架构的示意图；
图5是本申请实施例数据传输方法的流程示意图；
图6是本申请实施例数据传输装置的结构示意图；
图7是本申请实施例通信设备的结构示意图；
图8是本申请实施例终端的结构示意图。
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框图。无线通信系统包括终端11和网络侧设备12。其中，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)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。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可以包括接入网设备或核心网设备，其中，接入网设备也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或无线保真(Wireless Fidelity，WiFi)节点等，基站可被称为节点B、演进节点B(Evolved Node B，eNB)、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)、家用B节点、家用演进型B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 为例进行介绍，并不限定基站的具体类型。
无线通信系统中的中继(Relay)技术，就是在基站与终端之间增加了一个或多个中继节点，负责对无线信号进行一次或者多次的转发，即无线信号要经过多跳才能到达终端。
无线中继技术不仅可用于扩展小区覆盖，弥补小区覆盖盲点，同时也可通过空间资源复用提升小区容量。对于室内覆盖，Relay技术也可起到克服穿透损耗，提升室内覆盖质量的作用。
以较简单的两跳中继为例，无线中继就是将一个基站-终端链路分割为基站-中继站和中继站-终端两个链路，从而有机会将一个质量较差的链路替换为两个质量较好的链路，以获得更高的链路容量及更好的覆盖。
目前已经支持的Relay为UE-to-Network relay，即Relay一端连接UE，一端连接网络侧。跟Relay连接的UE，叫做远端UE(Remote UE)。
一种典型的中继场景如图2所示，这是一个典型的UE-to-Network的场景，Remote UE需要与网络侧传输数据，但由于覆盖不佳，找到Relay UE为其中转，其中Relay UE与基站之间是Uu接口，Relay UE和Remote UE之间是sidelink(PC5)接口。一般来说，Relay UE是开放的，可以为任何Remote UE服务。
相关技术中，Remote UE无线资源控制(RRC)连接建立流程包括以下步骤：
步骤1.Remote UE和Relay UE执行发现(discovery)过程，随后建立PC5 RRC连接。
步骤2.Remote UE向基站发送RRC Setup Request消息，基站向Remote UE回复RRC Setup消息。具体地，这两条消息是Relay UE中转发送到基站或Remote UE。
步骤3.基站和remote UE之间建立信令无线承载1(SRB1)专用承载，该remote UE SRB1专用承载由PC5(remote UE和Relay UE之间)和Uu(Relay UE和基站之间)两段无线链路控制(RLC)信道组成。具体的，两段RLC信道用于Remote UE发送/接收与基站之间的SRB1类型的RRC消息。
步骤4.Remote UE向基站发送RRC Setup Complete消息。具体地，这条消息是Relay UE中转发送到基站。
步骤5.Remote UE和基站之间激活安全。
步骤6.基站和Remote UE之间建立SRB2/数据无线承载(DRB)专用承载，该Remote UE SRB2/DRB专用承载由PC5(Remote UE和Relay UE之间)和Uu(Relay UE和基站之间)两段RLC信道组成。具体的，两段RLC信道用于Remote UE发送/接收与基站之间的SRB2类型的RRC/NAS消息以及上下行业务数据。
针对旁链路中继(sidelink relay，SL relay)架构，多路径是指Remote UE同时建立了非直连路径(indirect path)和直连路径(direct path)，如图3所示。
针对非SL relay架构，则两个UE之间的连接并不是sidelink(PC5)接口，假设它们之间的接口为有线连接或者理想的UE间连接(ideal inter-UE connection)。这里多路径是指一个UE同时建立了indirect path和direct path，如图4所示。主(Primary)UE，也可称 为锚(Anchor)UE。辅(Secondary)UE，也可称为辅助(Helper)UE或聚合(Aggregated)UE。
本实施例中，indirect path译为非直连路径，指Remote UE(或Primary UE，Anchor UE)通过Relay UE(或Secondary UE，Helper UE，Aggregated UE)以及Relay UE(或Secondary UE，Helper UE，Aggregated UE)的Uu空口与基站建立RRC连接的无线链路。
Direct path译为直连路径，指Remote UE(或Primary UE，Anchor UE)通过自己的Uu空口与基站建立RRC连接的无线链路。
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数据传输方法进行详细地说明。
本申请实施例提供一种数据传输方法，如图5所示，包括：
步骤101：第一终端通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
步骤102：所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
在本申请实施例中，第一终端与网络侧设备之间建立多路径连接，在检测多个路径中的第一路径发生失败的情况下，第一终端可以暂停或停止第一路径的数据传输，使得终端可以在无线链路失败情况下暂时挂起数据传输，待无线链路恢复后再继续数据传输，减少终端数据收发中断，保持业务连续性。
本实施例中，第一终端可以为Remote UE、Primary UE或Anchor UE，第二终端可以为Relay UE、Secondary UE或Helper UE。第一终端与服务基站之间建立了多个路径(multi path)，通过多个路径与服务基之间传输用户面数据和/或控制面数据。该多个路径包括至少一条直连路径和/或至少一条非直连路径。一些实施例，所述多个路径可以包括：
至少两个所述非直连路径；
至少一个所述非直连路径和至少一个所述直连路径。
一些实施例中，在所述第一路径为所述直连路径的情况下，所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输包括：
所述第一终端在判断满足以下至少一个条件的情况下，暂停所述第一路径的数据传输：
检测到所述直连路径发生Uu空口无线链路失败；
检测到所述直连路径发生Uu波束失败；
发生所述直连路径配置失败，其中，直连路径配置包括初始配置和重配置两种情况。在直连路径初始配置时，是对于第一路径的添加操作；在直连路径重配置时，是对于第一路径的修改操作。
在发生上述情况时，表明直连路径的数据传输出现失败的情况，需要暂停直连路径的数据传输。本实施例中，在检测直连路径发生失败的情况下，在非直连路径未检测到发生 任何失败情况，第一终端的非直连路径是正常工作的，因此，不需要针对非直连路径的传输进行任何额外的处理，即非直连路径的传输仍然可以持续进行。
一些实施例中，暂停所述第一路径的数据传输包括以下至少一项：
暂停所述直连路径的至少一个数据无线承载(Data Radio Bearer，DRB)的传输，包括暂停或挂起或去激活direct path的所有或部分DRB传输，其中DRB包括以下至少一种：direct path的数据无线承载(简称为Direct DRB)，分离数据无线承载的direct path部分(简称为Direct part of split DRB)；
暂停所述直连路径的至少一个信令无线承载(Signalling Radio Bearer，SRB)的传输，包括暂停或挂起或去激活direct path的所有或部分SRB传输，其中SRB包括以下至少一种：direct path的信令无线承载1(简称为Direct SRB1)，direct path的信令无线承载2(简称为Direct SRB2)，分离信令无线承载1的direct path部分(简称为Direct part of split SRB1)，分离信令无线承载2的direct path部分(简称为Direct part of split SRB2)；
暂停所述直连路径的至少一个Uu无线链路控制(Radio Link Control，RLC)信道的传输，包括暂停或挂起或去激活direct path的所有或部分Uu RLC channel传输；
重置所述直连路径的媒体接入控制(Medium Access Control，MAC)实体。
其中，上述“暂停”也可以解释为“挂起(suspend)”或“去激活(deactivate)”。
一些实施例中，在满足预设的恢复条件的情况下，所述第一终端恢复所述第一路径的数据传输，所述第一终端恢复所述第一路径的数据传输包括以下至少一项：
恢复所述直连路径的至少一个DRB的传输，包括继续或恢复或激活direct path的所有或部分DRB传输，其中所述DRB包括以下至少一种：direct path的数据无线承载(简称为Direct DRB)，分离数据无线承载的direct path部分(简称为Direct part of split DRB)；
恢复所述直连路径的至少一个SRB的传输，包括继续或恢复或激活direct path的所有或部分SRB传输，其中所述SRB包括以下至少一种：direct path的信令无线承载1(简称为Direct SRB1)，direct path的信令无线承载2(简称为Direct SRB2)，分离信令无线承载1的direct path部分(简称为Direct part of split SRB1)，分离信令无线承载2的direct path部分(简称为Direct part of split SRB2)；
恢复所述直连路径的至少一个Uu RLC信道(channel)的传输，包括继续或恢复或激活direct path的所有或部分Uu RLC channel传输。
其中，所述恢复条件包括以下任一项：
接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带direct path的配置信息，根据direct path的配置信息可以对direct path进行配置，恢复direct path的数据传输；
成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带direct path的配置信息，根据direct path的配置信息可以对direct path进行配置，恢复direct path的数据传输；
向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带direct path的配置信息，可以根据已获取的direct path的配置信息对direct path进行配置，恢复direct path的数据传输；
确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带direct path的配置信息，可以根据已获取的direct path的配置信息对direct path进行配置，恢复direct path的数据传输。
其中，上述“恢复”也可以解释为“继续(resume)”或“激活(activate)”。
本实施例中，在终端支持多路径的场景下，如果发生直连路径的无线链路失败，终端能够暂停直连路径的数据传输，待无线链路恢复后再继续数据传输，减少终端数据收发中断，保持业务连续性。
一些实施例中，在所述第一路径为所述非直连路径的情况下，所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输，包括以下任一项：
所述第一终端在检测所述第一路径发生第一终端与第二终端之间的无线链路失败的情况下，停止所述第一路径的数据传输，其中，第一终端与第二终端之间的接口可以为PC5接口；
所述第一终端在接收到所述第二终端的指示信息的情况下，暂停所述第一路径的数据传输，所述指示信息指示所述第二终端满足预设的失败条件。
在发生上述情况时，表明非直连路径的数据传输出现失败的情况，需要暂停非直连路径的数据传输。本实施例中，在检测非直连路径发生失败的情况下，在直连路径未检测到发生任何失败情况，第一终端的直连路径是正常工作的，因此，不需要针对直连路径的传输进行任何额外的处理，即直连路径的传输仍然可以持续进行。
一些实施例中，所述预设的失败条件包括以下至少一项：
所述第二终端发生Uu空口无线链路失败；
所述第二终端发生Uu空口无线资源控制RRC连接失败，包括以下三种情况：RRC连接建立流程失败(针对第二终端处于RRC空闲态的情况)，RRC连接恢复流程失败(针对第二终端处于RRC非激活态的情况)，RRC连接被拒绝(针对第二终端处于RRC空闲态或RRC非激活态的情况)；
所述第二终端发生服务小区改变，其中，服务小区改变包括：发生切换(handover)以及小区选择或重选(Cell(re-)selection)两种情况，第二终端处于RRC连接态时，服务小区改变可以为发生切换；第二终端处于非RRC连接态，比如RRC空闲态或RRC非激活态时，服务小区改变可以为发生小区选择或重选。
一些实施例中，所述暂停所述第一路径的数据传输，包括以下至少一项：
暂停所述非直连路径的至少一个DRB的传输，包括暂停或挂起或去激活indirect path的所有或部分DRB传输，其中所述DRB包括以下至少一种：indirect path的数据无线承 载(简称为Indirect DRB)，分离数据无线承载的indirect path部分(简称为Indirect part of split DRB)；
暂停所述非直连路径的至少一个SRB的传输，包括暂停或挂起或去激活indirect path的所有或部分SRB传输，其中所述SRB包括以下至少一种：indirect path的信令无线承载1(简称为Indirect SRB1)，indirect path的信令无线承载2(简称为Indirect SRB2)，分离信令无线承载1的indirect path部分(简称为Indirect part of split SRB1)，分离信令无线承载2的indirect path部分(简称为Indirect part of split SRB2)；
暂停所述非直连路径的至少一个PC5中继RLC信道的传输，包括暂停或挂起或去激活indirect path的所有或部分PC5 Relay RLC channel传输；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
其中，上述“暂停”也可以解释为“挂起(suspend)”或“去激活(deactivate)”。
一些实施例中，所述停止所述第一路径的数据传输，包括以下至少一项：
释放所述非直连路径与所述第二终端对应的至少一个旁链路SL-DRB；
释放所述非直连路径与所述第二终端对应的至少一个SL-SRB；
释放所述非直连路径与所述第二终端对应的至少一个PC5中继RLC信道；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
本实施例中，在终端支持多路径的场景下，如果发生非直连路径的无线链路失败，终端能够停止非直连路径的数据传输，待无线链路恢复后，可以重新建立非直连路径再继续数据传输。
一些实施例中，在暂停所述第一路径的数据传输之后，所述方法还包括：
在满足预设的恢复条件的情况下，所述第一终端恢复所述第一路径的数据传输；
其中，所述第一终端恢复所述第一路径的数据传输，包括以下至少一项：
恢复所述非直连路径的至少一个DRB的传输，包括继续或恢复或激活indirect path的所有或部分DRB传输，其中所述DRB包括以下至少一种：indirect path的数据无线承载(简称为Indirect DRB)，分离数据无线承载的indirect path部分(简称为Indirect part of split DRB)；
恢复所述非直连路径的至少一个SRB的传输，包括继续或恢复或激活indirect path的所有或部分SRB传输，其中所述SRB包括以下至少一种：indirect path的信令无线承载1(简称为Indirect SRB1)，indirect path的信令无线承载2(简称为Indirect SRB2)，分离信令无线承载1的indirect path部分(简称为Indirect part of split SRB1)，分离信令无线承载2的indirect path部分(简称为Indirect part of split SRB2)；
恢复所述非直连路径的至少一个PC5中继RLC信道的传输，包括继续或恢复或激活indirect path的所有或部分PC5 Relay RLC channel传输。
一些实施例中，所述恢复条件包括以下任一项：
接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带indirect path的 配置信息，可以根据indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带indirect path的配置信息，可以根据indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带indirect path的配置信息，可以根据已获取的indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带indirect path的配置信息，可以根据已获取的indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输。
其中，上述“恢复”也可以解释为“继续(resume)”或“激活(activate)”。
本实施例中，在终端支持多路径的场景下，如果发生非直连路径的无线链路失败，终端能够暂停非直连路径的数据传输，待无线链路恢复后再继续数据传输，减少终端数据收发中断，保持业务连续性。
本申请实施例提供的数据传输方法，执行主体可以为数据传输装置。本申请实施例中以数据传输装置执行数据传输方法为例，说明本申请实施例提供的数据传输装置。
本申请实施例提供一种数据传输装置，应用于第一终端。如图6所示，数据传输装置200包括：
传输模块210，用于通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
处理模块220，用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
在本申请实施例中，第一终端与网络侧设备之间建立多路径连接，在检测多个路径中的第一路径发生失败的情况下，第一终端可以暂停或停止第一路径的数据传输，使得终端可以在无线链路失败情况下暂时挂起数据传输，待无线链路恢复后再继续数据传输，尽量减少终端数据收发中断。
本实施例中，第一终端可以为Remote UE、Primary UE或Anchor UE，第二终端可以为Relay UE、Secondary UE或Helper UE。第一终端与服务基站之间建立了多个路径(multi path)，通过多个路径与服务基之间传输用户面数据和/或控制面数据。该多个路径包括至少一条直连路径和/或至少一条非直连路径。一些实施例中，所述多个路径包括：
至少两个所述非直连路径；
至少一个所述非直连路径和至少一个所述直连路径。
一些实施例中，在所述第一路径为所述直连路径的情况下，所述处理模块220用于在 判断满足以下至少一个条件的情况下，暂停所述第一路径的数据传输：
检测到所述直连路径发生Uu空口无线链路失败；
检测到所述直连路径发生Uu波束失败；
发生所述直连路径配置失败，其中，直连路径配置包括初始配置和重配置两种情况。在直连路径初始配置时，是对于第一路径的添加操作；在直连路径重配置时，是对于第一路径的修改操作。
在发生上述情况时，表明直连路径的数据传输出现失败的情况，需要暂停直连路径的数据传输。本实施例中，在检测直连路径发生失败的情况下，在非直连路径未检测到发生任何失败情况，第一终端的非直连路径是正常工作的，因此，不需要针对非直连路径的传输进行任何额外的处理，即非直连路径的传输仍然可以持续进行。
一些实施例中，暂停所述第一路径的数据传输包括以下至少一项：
暂停所述直连路径的至少一个数据无线承载DRB的传输，包括暂停或挂起或去激活direct path的所有或部分DRB传输，其中DRB包括以下至少一种：direct path的数据无线承载(简称为Direct DRB)，分离数据无线承载的direct path部分(简称为Direct part of split DRB)；
暂停所述直连路径的至少一个信令无线承载SRB的传输，包括暂停或挂起或去激活direct path的所有或部分SRB传输，其中SRB包括以下至少一种：direct path的信令无线承载1(简称为Direct SRB1)，direct path的信令无线承载2(简称为Direct SRB2)，分离信令无线承载1的direct path部分(简称为Direct part of split SRB1)，分离信令无线承载2的direct path部分(简称为Direct part of split SRB2)；
暂停所述直连路径的至少一个Uu无线链路控制RLC信道的传输，包括暂停或挂起或去激活direct path的所有或部分Uu RLC channel传输；
重置所述直连路径的媒体接入控制MAC实体。
其中，上述“暂停”也可以解释为“挂起(suspend)”或“去激活(deactivate)”。
一些实施例中，所述处理模块220用于在满足预设的恢复条件的情况下，恢复所述第一路径的数据传输，恢复所述第一路径的数据传输包括以下至少一项：
恢复所述直连路径的至少一个DRB的传输，包括继续或恢复或激活direct path的所有或部分DRB传输，其中所述DRB包括以下至少一种：direct path的数据无线承载(简称为Direct DRB)，分离数据无线承载的direct path部分(简称为Direct part of split DRB)；
恢复所述直连路径的至少一个SRB的传输，包括继续或恢复或激活direct path的所有或部分SRB传输，其中所述SRB包括以下至少一种：direct path的信令无线承载1(简称为Direct SRB1)，direct path的信令无线承载2(简称为Direct SRB2)，分离信令无线承载1的direct path部分(简称为Direct part of split SRB1)，分离信令无线承载2的direct path部分(简称为Direct part of split SRB2)；
恢复所述直连路径的至少一个Uu RLC信道的传输，包括继续或恢复或激活direct path 的所有或部分Uu RLC channel传输。
一些实施例中，所述DRB包括以下至少一项：
所述直连路径的数据无线承载；
分离数据无线承载的直连路径部分。
一些实施例中，所述SRB包括以下至少一项：
所述直连路径的信令无线承载1；
所述直连路径的信令无线承载2；
分离信令无线承载1的直连路径部分；
分离信令无线承载2的直连路径部分。
其中，所述恢复条件包括以下任一项：
接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带direct path的配置信息，根据direct path的配置信息可以对direct path进行配置，恢复direct path的数据传输；
成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带direct path的配置信息，根据direct path的配置信息可以对direct path进行配置，恢复direct path的数据传输；
向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带direct path的配置信息，可以根据已获取的direct path的配置信息对direct path进行配置，恢复direct path的数据传输；
确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带direct path的配置信息，可以根据已获取的direct path的配置信息对direct path进行配置，恢复direct path的数据传输。
其中，上述“恢复”也可以解释为“继续(resume)”或“激活(activate)”。
本实施例中，在终端支持多路径的场景下，如果发生直连路径的无线链路失败，终端能够暂停直连路径的数据传输，待无线链路恢复后再继续数据传输，减少终端数据收发中断，保持业务连续性。
一些实施例中，在所述第一路径为所述非直连路径的情况下，所述处理模块220用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输，包括以下任一项：
在检测所述第一路径发生第一终端与第二终端之间的无线链路失败的情况下，停止所述第一路径的数据传输，其中，第一终端与第二终端之间的接口可以为PC5接口；
在接收到所述第二终端的指示信息的情况下，暂停所述第一路径的数据传输，所述指示信息指示所述第二终端满足预设的失败条件。
在发生上述情况时，表明非直连路径的数据传输出现失败的情况，需要暂停非直连路径的数据传输。本实施例中，在检测非直连路径发生失败的情况下，在直连路径未检测到 发生任何失败情况，第一终端的直连路径是正常工作的，因此，不需要针对直连路径的传输进行任何额外的处理，即直连路径的传输仍然可以持续进行。
一些实施例中，所述预设的失败条件包括以下至少一项：
所述第二终端发生Uu空口无线链路失败；
所述第二终端发生Uu空口无线资源控制RRC连接失败，包括以下三种情况：RRC连接建立流程失败(针对第二终端处于RRC空闲态的情况)，RRC连接恢复流程失败(针对第二终端处于RRC非激活态的情况)，RRC连接被拒绝(针对第二终端处于RRC空闲态或RRC非激活态的情况)；
所述第二终端发生服务小区改变，其中，服务小区改变包括：发生切换(handover)以及小区选择或重选(Cell(re-)selection)两种情况，第二终端处于RRC连接态时，服务小区改变可以为发生切换；第二终端处于非RRC连接态，比如RRC空闲态或RRC非激活态时，服务小区改变可以为发生小区选择或重选。
一些实施例中，所述暂停所述第一路径的数据传输，包括以下至少一项：
暂停所述非直连路径的至少一个DRB的传输，包括暂停或挂起或去激活indirect path的所有或部分DRB传输，其中所述DRB包括以下至少一种：indirect path的数据无线承载(简称为Indirect DRB)，分离数据无线承载的indirect path部分(简称为Indirect part of split DRB)；
暂停所述非直连路径的至少一个SRB的传输，包括暂停或挂起或去激活indirect path的所有或部分SRB传输，其中所述SRB包括以下至少一种：indirect path的信令无线承载1(简称为Indirect SRB1)，indirect path的信令无线承载2(简称为Indirect SRB2)，分离信令无线承载1的indirect path部分(简称为Indirect part of split SRB1)，分离信令无线承载2的indirect path部分(简称为Indirect part of split SRB2)；
暂停所述非直连路径的至少一个PC5中继RLC信道的传输，包括暂停或挂起或去激活indirect path的所有或部分PC5 Relay RLC channel传输；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
其中，上述“暂停”也可以解释为“挂起(suspend)”或“去激活(deactivate)”。
一些实施例中，所述停止所述第一路径的数据传输，包括以下至少一项：
释放所述非直连路径与所述第二终端对应的至少一个旁链路SL-DRB；
释放所述非直连路径与所述第二终端对应的至少一个SL-SRB；
释放所述非直连路径与所述第二终端对应的至少一个PC5中继RLC信道；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
本实施例中，在终端支持多路径的场景下，如果发生非直连路径的无线链路失败，终端能够停止非直连路径的数据传输，待无线链路恢复后，可以重新建立非直连路径再继续数据传输。
一些实施例中，所述处理模块220还用于在满足预设的恢复条件的情况下，恢复所述 第一路径的数据传输；
其中，恢复所述第一路径的数据传输，包括以下至少一项：
恢复所述非直连路径的至少一个DRB的传输，包括继续或恢复或激活indirect path的所有或部分DRB传输，其中所述DRB包括以下至少一种：indirect path的数据无线承载(简称为Indirect DRB)，分离数据无线承载的indirect path部分(简称为Indirect part of split DRB)；
恢复所述非直连路径的至少一个SRB的传输，包括继续或恢复或激活indirect path的所有或部分SRB传输，其中所述SRB包括以下至少一种：indirect path的信令无线承载1(简称为Indirect SRB1)，indirect path的信令无线承载2(简称为Indirect SRB2)，分离信令无线承载1的indirect path部分(简称为Indirect part of split SRB1)，分离信令无线承载2的indirect path部分(简称为Indirect part of split SRB2)；
恢复所述非直连路径的至少一个PC5中继RLC信道的传输，包括继续或恢复或激活indirect path的所有或部分PC5 Relay RLC channel传输。
一些实施例中，所述DRB包括以下至少一项：
所述非直连路径的数据无线承载；
分离数据无线承载的非直连路径部分。
一些实施例中，所述SRB包括以下至少一项：
所述非直连路径的信令无线承载1；
所述非直连路径的信令无线承载2；
分离信令无线承载1的非直连路径部分；
分离信令无线承载2的非直连路径部分。
一些实施例中，述恢复条件包括以下任一项：
接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息，可以根据indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息，可以根据indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息，可以根据已获取的indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输；
确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息，可以根据已获取的indirect path的配置信息对indirect path进行配置，恢复indirect path的数据传输。
其中，上述“恢复”也可以解释为“继续(resume)”或“激活(activate)”。
本实施例中，在终端支持多路径的场景下，如果发生非直连路径的无线链路失败，终端能够暂停非直连路径的数据传输，待无线链路恢复后再继续数据传输，减少终端数据收发中断，保持业务连续性。
本申请实施例中的数据传输装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的数据传输装置能够实现图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。
可选地，如图7所示，本申请实施例还提供一种通信设备600，包括处理器601和存储器602，存储器602上存储有可在所述处理器601上运行的程序或指令，该程序或指令被处理器601执行时实现上述数据传输方法实施例的各个步骤，且能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了一种终端，该终端包括处理器和存储器，所述存储器存储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上所述的数据传输方法的步骤。
本申请实施例还提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；所述处理器用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
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8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8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可以包括图形处理单元(Graphics Processing Unit，GPU)7041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中的至少一种。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接收来自网络侧设备的下行数据后，可以传输给处理器710进行处理；另外，射频单元701可以向网络侧设备发送上行数据。通常，射频单元701包括但不限于天线、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的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、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可以包括易失性存储器或非易失性存储器，或者，存储器709可以包括易失性和非易失性存储器两者。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。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器709包括但不限于这些和任意其它适合类型的存储器。
处理器710可包括一个或多个处理单元；可选地，处理器710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涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，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。
一些实施例中，处理器710，用于通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
一些实施例中，所述多个路径包括：
至少两个所述非直连路径；
至少一个所述非直连路径和至少一个所述直连路径。
一些实施例中，在所述第一路径为所述直连路径的情况下，处理器710用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输包括：
处理器710用于在判断满足以下至少一个条件的情况下，暂停所述第一路径的数据传 输：
检测到所述直连路径发生Uu空口无线链路失败；
检测到所述直连路径发生Uu波束失败；
发生所述直连路径配置失败。
一些实施例中，暂停所述第一路径的数据传输包括以下至少一项：
暂停所述直连路径的至少一个数据无线承载DRB的传输；
暂停所述直连路径的至少一个信令无线承载SRB的传输；
暂停所述直连路径的至少一个Uu无线链路控制RLC信道的传输；
重置所述直连路径的媒体接入控制MAC实体。
一些实施例中，处理器710用于在满足预设的恢复条件的情况下，恢复所述第一路径的数据传输，恢复所述第一路径的数据传输包括以下至少一项：
恢复所述直连路径的至少一个DRB的传输；
恢复所述直连路径的至少一个SRB的传输；
恢复所述直连路径的至少一个Uu RLC信道的传输。
一些实施例中，所述DRB包括以下至少一项：
所述直连路径的数据无线承载；
分离数据无线承载的直连路径部分。
一些实施例中，所述SRB包括以下至少一项：
所述直连路径的信令无线承载1；
所述直连路径的信令无线承载2；
分离信令无线承载1的直连路径部分；
分离信令无线承载2的直连路径部分。
一些实施例中，在所述第一路径为所述非直连路径的情况下，处理器710用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输，包括以下任一项：
在检测所述第一路径发生第一终端与第二终端之间的无线链路失败的情况下，停止所述第一路径的数据传输；
在接收到所述第二终端的指示信息的情况下，暂停所述第一路径的数据传输，所述指示信息指示所述第二终端满足预设的失败条件。
一些实施例中，所述预设的失败条件包括以下至少一项：
所述第二终端发生Uu空口无线链路失败；
所述第二终端发生Uu空口无线资源控制RRC连接失败；
所述第二终端发生服务小区改变。
一些实施例中，所述暂停所述第一路径的数据传输，包括以下至少一项：
暂停所述非直连路径的至少一个DRB的传输；
暂停所述非直连路径的至少一个SRB的传输；
暂停所述非直连路径的至少一个PC5中继RLC信道的传输；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
一些实施例中，所述停止所述第一路径的数据传输，包括以下至少一项：
释放所述非直连路径与所述第二终端对应的至少一个旁链路SL-DRB；
释放所述非直连路径与所述第二终端对应的至少一个SL-SRB；
释放所述非直连路径与所述第二终端对应的至少一个PC5中继RLC信道；
重置所述非直连路径与所述第二终端对应的PC5MAC实体。
一些实施例中，在暂停所述第一路径的数据传输之后，处理器710用于在满足预设的恢复条件的情况下，恢复所述第一路径的数据传输；
其中，恢复所述第一路径的数据传输，包括以下至少一项：
恢复所述非直连路径的至少一个DRB的传输；
恢复所述非直连路径的至少一个SRB的传输；
恢复所述非直连路径的至少一个PC5中继RLC信道的传输。
一些实施例中，所述DRB包括以下至少一项：
所述非直连路径的数据无线承载；
分离数据无线承载的非直连路径部分。
一些实施例中，所述SRB包括以下至少一项：
所述非直连路径的信令无线承载1；
所述非直连路径的信令无线承载2；
分离信令无线承载1的非直连路径部分；
分离信令无线承载2的非直连路径部分。
一些实施例中，所述恢复条件包括以下任一项：
接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息；
成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息；
向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息；
确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息。
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数据传输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，可以 是非易失性的，也可以是非瞬态的。可读存储介质，可以包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器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程序或指令，实现上述数据传输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。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述数据传输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。
本申请实施例还提供了一种数据传输系统，包括：网络侧设备及终端，所述终端可用于执行如上所述的数据传输方法的步骤。
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相关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 (21)

  1. 一种数据传输方法，包括：
    第一终端通过多个路径与网络侧设备传输数据，所述多个路径包括所述第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
    所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
  2. 根据权利要求1所述的数据传输方法，其中，所述多个路径包括：
    至少两个所述非直连路径；
    至少一个所述非直连路径和至少一个所述直连路径。
  3. 根据权利要求1所述的数据传输方法，其中，在所述第一路径为所述直连路径的情况下，所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输包括：
    所述第一终端在判断满足以下至少一个条件的情况下，暂停所述第一路径的数据传输：
    检测到所述直连路径发生Uu空口无线链路失败；
    检测到所述直连路径发生Uu波束失败；
    发生所述直连路径配置失败。
  4. 根据权利要求3所述的数据传输方法，其中，暂停所述第一路径的数据传输包括以下至少一项：
    暂停所述直连路径的至少一个数据无线承载DRB的传输；
    暂停所述直连路径的至少一个信令无线承载SRB的传输；
    暂停所述直连路径的至少一个Uu无线链路控制RLC信道的传输；
    重置所述直连路径的媒体接入控制MAC实体。
  5. 根据权利要求4所述的数据传输方法，其中，在满足预设的恢复条件的情况下，所述第一终端恢复所述第一路径的数据传输，所述第一终端恢复所述第一路径的数据传输包括以下至少一项：
    恢复所述直连路径的至少一个DRB的传输；
    恢复所述直连路径的至少一个SRB的传输；
    恢复所述直连路径的至少一个Uu RLC信道的传输。
  6. 根据权利要求4或5所述的数据传输方法，其中，所述DRB包括以下至少一项：
    所述直连路径的数据无线承载；
    分离数据无线承载的直连路径部分。
  7. 根据权利要求4或5所述的数据传输方法，其中，所述SRB包括以下至少一项：
    所述直连路径的信令无线承载1；
    所述直连路径的信令无线承载2；
    分离信令无线承载1的直连路径部分；
    分离信令无线承载2的直连路径部分。
  8. 根据权利要求1所述的数据传输方法，其中，在所述第一路径为所述非直连路径的情况下，所述第一终端在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输，包括以下任一项：
    所述第一终端在检测所述第一路径发生第一终端与第二终端之间的无线链路失败的情况下，停止所述第一路径的数据传输；
    所述第一终端在接收到所述第二终端的指示信息的情况下，暂停所述第一路径的数据传输，所述指示信息指示所述第二终端满足预设的失败条件。
  9. 根据权利要求8所述的数据传输方法，其中，所述预设的失败条件包括以下至少一项：
    所述第二终端发生Uu空口无线链路失败；
    所述第二终端发生Uu空口无线资源控制RRC连接失败；
    所述第二终端发生服务小区改变。
  10. 根据权利要求8所述的数据传输方法，其中，所述暂停所述第一路径的数据传输，包括以下至少一项：
    暂停所述非直连路径的至少一个DRB的传输；
    暂停所述非直连路径的至少一个SRB的传输；
    暂停所述非直连路径的至少一个PC5中继RLC信道的传输；
    重置所述非直连路径与所述第二终端对应的PC5 MAC实体。
  11. 根据权利要求8所述的数据传输方法，其中，所述停止所述第一路径的数据传输，包括以下至少一项：
    释放所述非直连路径与所述第二终端对应的至少一个旁链路SL-DRB；
    释放所述非直连路径与所述第二终端对应的至少一个SL-SRB；
    释放所述非直连路径与所述第二终端对应的至少一个PC5中继RLC信道；
    重置所述非直连路径与所述第二终端对应的PC5 MAC实体。
  12. 根据权利要求10所述的数据传输方法，其中，在暂停所述第一路径的数据传输之后，所述方法还包括：
    在满足预设的恢复条件的情况下，所述第一终端恢复所述第一路径的数据传输；
    其中，所述第一终端恢复所述第一路径的数据传输，包括以下至少一项：
    恢复所述非直连路径的至少一个DRB的传输；
    恢复所述非直连路径的至少一个SRB的传输；
    恢复所述非直连路径的至少一个PC5中继RLC信道的传输。
  13. 根据权利要求10或12所述的数据传输方法，其中，所述DRB包括以下至少一 项：
    所述非直连路径的数据无线承载；
    分离数据无线承载的非直连路径部分。
  14. 根据权利要求10或12所述的数据传输方法，其中，所述SRB包括以下至少一项：
    所述非直连路径的信令无线承载1；
    所述非直连路径的信令无线承载2；
    分离信令无线承载1的非直连路径部分；
    分离信令无线承载2的非直连路径部分。
  15. 根据权利要求5或12所述的数据传输方法，其中，所述恢复条件包括以下任一项：
    接收到服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息；
    成功应用所述服务基站发送的RRC重配置消息，所述RRC重配置消息携带所述第一路径的配置信息；
    向所述服务基站发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息；
    确认向所述服务基站成功发送RRC重配置完成消息，所述RRC重配置完成消息对应的RRC重配置消息携带所述第一路径的配置信息。
  16. 一种数据传输装置，包括：
    传输模块，用于通过多个路径与网络侧设备传输数据，所述多个路径包括第一终端与所述网络侧设备直接通信的直连路径和/或所述第一终端通过第二终端与所述网络侧设备通信的非直连路径；
    处理模块，用于在检测所述多个路径中的第一路径发生失败的情况下，暂停或停止所述第一路径的数据传输。
  17. 一种终端，包括处理器和存储器，所述存储器存储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任一项所述的数据传输方法的步骤。
  18. 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至15任一项所述的数据传输方法的步骤。
  19. 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，实现如权利要求1至15任一项所述的方法。
  20. 一种计算机程序产品，所述程序产品被存储在非易失的存储介质中，所述程序产品被至少一个处理器执行以实现如权利要求1至15任一项所述的方法。
  21. 一种通信设备，被配置成用于执行如权利要求1至15任一项所述的方法。
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CN113615257A (zh) * 2019-08-16 2021-11-05 Oppo广东移动通信有限公司 一种路径选择方法及装置、终端
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