Link configuration method, device, remote terminal, network device, and storage medium

Abstract

The present disclosure discloses a link configuration method, apparatus, remote terminal, network device, and storage medium, the method including configuring a first SRB and / or a second SRB on a first link added by a remote terminal, where the first link is characterized as an NR direct connect link or a relay link.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This disclosure claims priority to Chinese Patent Application No. 202211104951.4, filed in China on September 9, 2022, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of communications technology, and more particularly to a link configuration method, an apparatus, a remote terminal, a network device, and a storage medium. [Background technology]

[0003] In related technologies, a remote terminal (User Equipment, UE) can simultaneously access a network device via a relay terminal and a New Radio (NR) direct connection link, but there is a problem in that the network lacks robustness. Summary of the Invention [Problem to be solved by the invention]

[0004] To solve the problems in the related art, embodiments of the present disclosure provide a link configuration method, an apparatus, a remote terminal, a network device, and a storage medium. [Means for solving the problem]

[0005] The technical solutions of the embodiments of the present disclosure can be realized as follows.

[0006] An embodiment of the present disclosure provides a link configuration method applied to a network device, the method comprising: The method includes configuring a first signaling radio bearer (SRB) and / or a second SRB on a first link added by a remote terminal (UE), where the first link is characterized as an NR direct connection link or a relay link. In the above aspect, configuring a first SRB and / or a second SRB on the added first link of the remote terminal includes: This includes adding and activating a Split SRB1 and / or adding and activating a Split SRB2 on the added NR direct connection link of the remote terminal.

[0007] In the above aspect, the method further comprises: deactivating SRB1 and / or SRB2 on the relay link; or This includes maintaining SRB1 and / or SRB2 on the relay link in an activated state. In the above aspect, configuring a first SRB and / or a second SRB on the added first link of the remote terminal includes: Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; adding and activating Split SRB2 on the added relay link of the remote terminal. In the above aspect, the method further comprises: During activation of the NR direct connect link, maintaining SRB1 and / or SRB2 on the NR direct connect link in an activated state.

[0008] In the above aspect, the method further comprises: The NR direct connect link is deleted or deactivated; and A Radio Link Failure (RLF) occurs on the NR direct connection link, reconfiguring the relay link as a primary path; and activating SRB1 and / or SRB2 on the relay link if one of the following is satisfied.

[0009] In the above aspect, the method further comprises: The relay link is removed or deactivated; and RLF occurs at the relay terminal, and RLF occurs on the PC5 link, and reconfiguring the NR direct connect link as the primary path, and if one of the following is satisfied, reconfiguring Split SRB1 on the NR direct connect link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connect link as SRB2.

[0010] In the above aspect, the method further comprises: an NR direct connect link is added by a remote terminal; The relay link is removed or deactivated; and A radio link failure (RLF) occurs on the air interface of the relay terminal; and A sidelink (SL) failure occurs between the relay terminal and the remote terminal. and reconfiguring the NR direct connect link as the primary path, and if one of the following is satisfied, reconfiguring Split SRB1 on the NR direct connect link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connect link as SRB2.

[0011] In the above aspect, the method further comprises: The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and reconfiguring the relay link as a primary path; and reconfiguring Split SRB1 on the relay link as SRB1 and / or reconfiguring Split SRB2 on the relay link as SRB2 if one of the following conditions is met.

[0012] In the above aspect, the method further comprises: When an NR direct connection link is added or activated by a remote terminal, the method includes configuring the NR direct connection link as a primary path and configuring a relay link as a secondary path.

[0013] In the above aspect, the method further comprises: When a relay link is added or activated by the remote terminal, the relay link is configured as a primary path and the NR direct connection link is configured as a secondary path.

[0014] In the above aspect, the method further comprises: Deactivating the correlation SRB on the secondary path, or This includes maintaining a correlation SRB on the primary path and a correlation SRB on the secondary path in an activated state.

[0015] An embodiment of the present disclosure further provides a link configuration method applied to a remote terminal, the method comprising: The method includes obtaining a first SRB and / or a second SRB that the network device configures on the first link added by the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0016] In the above aspect, the method further comprises: This includes preferentially utilizing correlated SRBs on the primary path to transmit correlated signaling.

[0017] An embodiment of the present disclosure further provides a link configuration device including a first configuration unit; The first configuration unit is used to configure a first SRB and / or a second SRB on an added first link of a remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0018] An embodiment of the present disclosure further provides a link configuration device including an acquisition unit; The acquisition unit is used to acquire a first SRB and / or a second SRB that a network device configures on a first link added by the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0019] An embodiment of the present disclosure further provides a network device including a first processor and a first communication interface; The first processor is used to configure a first SRB and / or a second SRB on an added first link of the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0020] An embodiment of the present disclosure further provides a remote terminal including a second processor and a second communication interface; The second processor is used to obtain a first SRB and / or a second SRB that the network equipment configures on a first link added by the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0021] An embodiment of the present disclosure further provides a network device including a first processor and a first memory for storing a computer program executable on the first processor; Here, the first processor executes the steps of any of the above network device-side methods when executing the computer program.

[0022] An embodiment of the present disclosure further provides a remote terminal including a second processor and a memory for storing a computer program executable on the second processor; Here, the second processor executes the steps of any of the methods on the remote terminal side when executing the computer program.

[0023] An embodiment of the present disclosure further provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the steps of the method on the network device side or any of the steps of the method on the remote terminal side. [Effects of the Invention]

[0024] According to the link configuration method, device, remote terminal, network device, and storage medium of the embodiments of the present disclosure, the network device configures a first SRB and / or a second SRB on a first link added by the remote terminal, the first link being characterized as an NR direct connection link or a relay link, and the remote terminal obtains the first SRB and / or the second SRB that the network device configures on the first link added by the remote terminal. In this way, since the first SRB and / or the second SRB are configured on the first link added by the remote terminal without being located on the originally established path between the remote terminal and the network device, the first SRB and / or the second SRB do not become unavailable even if a failure occurs on the originally established path, thereby improving the robustness and reliability of the network. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a schematic diagram of the architecture of a communication system in the related art; [Figure 2] 1 is a schematic flow diagram of a link configuration method according to an embodiment of the present disclosure. [Figure 3] FIG. 2 is an interaction schematic diagram of a link configuration method according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is an interaction schematic diagram of a link configuration method according to an embodiment of the present disclosure. [Figure 5] 1 is a schematic flow diagram of a link configuration method according to an embodiment of the present disclosure. [Figure 6] 1 is a schematic diagram illustrating the configuration of a link configuration device according to an embodiment of the present disclosure. [Figure 7] 1 is a schematic diagram illustrating the configuration of a link configuration device according to an embodiment of the present disclosure. [Figure 8] FIG. 2 is a structural schematic diagram of a remote terminal according to an embodiment of the present disclosure; [Figure 9] FIG. 1 is a structural schematic diagram of a network device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0026] In the related art, the following two types of network access strategies are provided for a remote terminal (UE): Strategy 1: A remote terminal can select an NR direct connection link or a non-direct connection link to access a network device such as a base station. For example, the remote terminal selects an NR direct connection link according to a set selection criterion to access the network device, or accesses the network device via a relay terminal (UE). That is, the remote terminal can directly switch between an NR direct connection link and a non-direct connection link. Here, for a remote terminal in a connected state, the remote terminal reports measurement information to the network device and reselects a relay UE or switches to an NR direct connection link based on a configuration sent from the network device. However, Strategy 1 has a problem of low network throughput. Solution 2: As shown in Figure 1, the remote terminal simultaneously accesses the network equipment through a relay terminal and an NR direct connection link, with the Uu port used for communication between the terminal and the network equipment and the PC5 port used for communication between terminals. In one case, the remote terminal first establishes a connection with the network equipment through a relay UE, then reports measurement information to the network equipment, and establishes an NR direct connection based on the configuration sent from the network equipment, i.e., adds an NR direct connection link. In another case, the remote terminal first establishes an NR direct connection, then reports measurement information to the network equipment, and selects and adds a relay link based on the configuration sent from the network equipment.

[0027] In method 2, the remote terminal is in multi-connection mode after adding an NR direct connect link or relay link, which may have one or more radio bearers (RBs) that are used to improve system transmission reliability or throughput. As for the second strategy, although it improves the network throughput, in the second strategy, SRB1 and SRB2 are established on the initially established route, and if a failure occurs on the initially established route, both SRB1 and SRB2 become unavailable. Therefore, a failure occurs between the remote terminal and the network equipment, and the network becomes too dependent on the initially established route, resulting in a lack of robustness. For example, when a remote terminal establishes a Radio Resource Control (RRC) connection with a network device via a relay UE, SRB1 / SRB2 and a Data Radio Bearer (DRB) are established via the relay UE. If a failure occurs in the relay link between the remote terminal and the network device, both SRB1 and SRB2 become unavailable, resulting in a lack of robustness in the network. When a remote terminal establishes an RRC connection directly with a network device, SRB1 / SRB2 and a DRB are established between the remote terminal and the network device, and only a Split DRB exists on the relay UE. If a failure occurs in the NR direct connection link between the remote terminal and the network device, both SRB1 and SRB2 become unavailable, resulting in a lack of robustness in the network. Based on this, in each embodiment of the present disclosure, the network equipment configures a first SRB and / or a second SRB on a first link added by the remote terminal, the first link being characterized as an NR direct connection link or a relay link, and the remote terminal obtains the first SRB and / or the second SRB that the network equipment configures on the first link added by the remote terminal. In this way, since the first SRB and / or the second SRB are configured on the first link added by the remote terminal without being located on the originally established path between the remote terminal and the network equipment, the first SRB and / or the second SRB do not become unavailable even if a failure occurs on the originally established path between the remote terminal and the network equipment, thereby improving the robustness and reliability of the network.

[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and examples.

[0029] An embodiment of the present disclosure provides a link configuration method applied to a network device, where the network device includes a base station, and the method includes: This includes configuring a first SRB and / or a second SRB on the added first link of the terminal. Here, the first link can be characterized as an NR direct connection link or a non-direct connection link. An NR direct connection link refers to a link in which a terminal (e.g., a remote terminal) directly connects to a network device. The non-direct connection link can be a relay link, a sidelink link, or a non-standard link. A relay link is also called a PC5 link. Here, the terminal may be a remote terminal (UE).

[0030] An embodiment of the present disclosure further provides a link configuration method applied to a network device, where the network device includes a base station, and as shown in FIG. 2, the method includes the following steps: In step 201, a first SRB and / or a second SRB is configured on the added first link of the remote terminal. Here, the first link can be characterized as an NR direct connection link or a relay link. An NR direct connection link refers to a link in which a remote terminal connects directly to a network device. A relay link is also called a PC5 link. Here, if a remote terminal first accesses a network device via a relay terminal and then adds an NR direct connection link, the network device configures a first SRB and / or a second SRB on the NR direct connection link added by the remote terminal. If the remote terminal first accesses the network equipment via an NR direct connection link and then adds a relay link, the network equipment configures a first SRB and / or a second SRB on the NR direct connection link added by the remote terminal. The first and second SRBs may be used to transmit RRC signaling and / or Non-Access-Stratum (NAS) signaling. The first SRB includes a Split SRB1, and the second SRB includes a Split SRB2.

[0031] The process of configuring a primary SRB and / or a secondary SRB by a network device will be described with reference to Fig. 3. As shown in Fig. 3, the link configuration method includes the following steps 1 to 9: In step 1, the remote terminal performs measurements based on the measurement configuration sent from the network device and reports the measurement results to the network device. In step 2, the network equipment sends an RRC Reconfiguration Message to the remote terminal. In step 3, the remote terminal transmits a preamble to the network equipment. In step 4, the network device sends a Random Access Response (RAR) to the remote terminal. In step 5, the remote terminal sends an RRC Setup Request to the network equipment. In step 6, the network device sends an RRC Setup Message to the remote terminal. The remote terminal and the network device complete random access through steps 3 to 6. The RRC Setup Message is sent by the network device through SRB0, and includes the relevant configuration of the first SRB, i.e., the network device configures the first SRB through the RRC Setup Message. The first SRB is Split SRB1. In step 7, the remote terminal sends an RRC Setup Complete Message to the network equipment. In step 8, the network equipment sends an RRC Reconfiguration Message to the remote terminal. Here, the RRC Reconfiguration Message includes the related configuration of the second SRB, that is, the network device configures the second SRB through the RRC Reconfiguration Message. The second SRB is Split SRB2. In step 9, the network equipment sends an RRC Reconfiguration Complete Message to the remote terminal.

[0032] In a scenario where a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, in an optional embodiment, configuring a first SRB and / or a second SRB on the first link added by the remote terminal includes: This includes adding and activating Split SRB1 and / or adding and activating Split SRB2 on the added NR direct connect link of the remote terminal. For example, if a remote terminal first accesses the network equipment through a relay terminal and then adds an NR direct connection link, the network equipment adds Split SRB1 on the NR direct connection link added by the remote terminal and activates the previously added Split SRB1. For example, if a remote terminal first accesses a network device via a relay terminal and then adds an NR direct connection link, the network device adds Split SRB2 on the NR direct connection link added by the remote terminal and activates the previously added Split SRB2. For example, if a remote terminal first accesses a network device via a relay terminal and then adds an NR direct connection link, the network device adds and activates Split SRB1 and Split SRB2 on the NR direct connection link added by the remote terminal.

[0033] In addition, in a scenario where a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, SRB1 and / or SRB2 exist on the relay link between the relay terminal and the network device. Therefore, even if a failure occurs on the relay link between the relay terminal and the network device, the remote terminal can transmit correlation signaling using Split SRB1 and / or Split SRB2 on the NR direct connection link, thereby maintaining communication between the remote terminal and the network device and improving network reliability and stability.

[0034] In a scenario where a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, SRB1 and / or SRB2 exist on the relay link between the relay terminal and the network device. Based on this, in an optional embodiment, the method further comprises: deactivating SRB1 and / or SRB2 on the relay link; or This includes maintaining SRB1 and / or SRB2 on the relay link in an activated state. Here, if a remote terminal first accesses the network equipment through a relay terminal and then adds an NR direct connection link, when SRB1 on the relay link is in an activated state, the network equipment deactivates SRB1 on the relay link, when SRB2 on the relay link is in an activated state, the network equipment deactivates SRB2 on the relay link, and when both SRB1 and SRB2 on the relay link are in an activated state, the network equipment deactivates SRB1 and SRB2 on the relay link. Here, an SRB in an activated state can transmit correlation signaling, and an SRB in a deactivated state cannot transmit correlation signaling.

[0035] Of course, if the remote terminal first accesses the network equipment through a relay terminal and then adds an NR direct connect link, the network equipment can keep SRB1 and / or SRB2 of the relay link bearer in an activated state. In this case, the network equipment and the remote terminal can transmit correlation signaling using the already activated SRBs on the NR direct connect link and the relay link.

[0036] In a scenario where a remote terminal first accesses a network device via an NR direct connection link and then adds a relay link, in an optional embodiment, configuring a first SRB and / or a second SRB on the first link added by the remote terminal includes: Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; adding and activating Split SRB2 on the added relay link of the remote terminal. Here, if the remote terminal first accesses the network device via an NR direct connection link and then adds a relay link, the network device adds Split SRB1 and / or Split SRB2 on the relay link added by the remote terminal, and the network device may activate or not activate the already added Split SRB1 and / or Split SRB2. Specifically, as follows:

[0037] The network device can add a Split SRB1 on the relay link added by the remote terminal and configure the Split SRB1 in a deactivated state, in which case the added Split SRB1 is in a deactivated state by default. If a remote terminal first accesses the network equipment via an NR direct connection link and then adds a relay link, the network equipment can add a Split SRB2 on the added relay link of the remote terminal and configure the Split SRB2 as inactive, in which case the added Split SRB2 is inactive by default. If the remote terminal first accesses the network equipment via an NR direct connection link and then adds a relay link, the network equipment can add and activate Split SRB1 on the relay link added by the remote terminal. In this case, the network equipment and the remote terminal can transmit correlation signaling using the already activated Split SRB1 on the relay link. If the remote terminal first accesses the network equipment via an NR direct connection link and then adds a relay link, the network equipment can add and activate Split SRB2 on the relay link added by the remote terminal. In this case, the network equipment and the remote terminal can transmit correlation signaling using the already activated Split SRB2 on the relay link.

[0038] In addition, in a scenario where a remote terminal first accesses a network device via an NR direct connection link and then adds a relay link, SRB1 and / or SRB2 exist on the NR direct connection link between the remote terminal and the network device, so that even if a failure occurs on the NR direct connection link between the remote terminal and the network device, the remote terminal can transmit correlation signaling using Split SRB1 and / or Split SRB2 on the relay link, thereby maintaining communication between the remote terminal and the network device and improving network reliability and stability.

[0039] In a scenario where the remote terminal first accesses the network equipment through an NR direct connection link and then adds a relay link, SRB1 and / or SRB2 exist on the NR direct connection link between the remote terminal and the network equipment. Based on this, in an optional embodiment, the method further comprises: During activation of the NR direct connect link, maintaining SRB1 and / or SRB2 on the NR direct connect link in an activated state. Here, during activation of the NR direct connection link, the network device maintains SRB1 and / or SRB2 on the NR direct connection link in an activated state, so that the network device and the remote terminal can transmit correlation signaling using the already activated SRBs on the NR direct connection link and the relay link.

[0040] In a scenario where a remote terminal first accesses a network device via a relay terminal and then adds an NR direct connection link, if the added NR direct connection link is unavailable or fails, in order to quickly recover the radio link, improve the robustness of the radio link, and avoid SRB reconfiguration caused by the network device and the remote terminal performing RRC connection reconfiguration, in an optional embodiment, the method further comprises: (1) The NR direct connection link is deleted or deactivated; and (2) RLF occurs on the NR direct connection link, (3) reconfiguring the relay link as a primary path; and activating SRB1 and / or SRB2 on the relay link if one of the above is satisfied. In this case, when a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, SRB1 and / or SRB2 exist on the relay link between the relay terminal and the network device. If any one of the above (1) to (3) is satisfied, the network device activates SRB1 and / or SRB2 on the relay link, so that the network device and the remote terminal can transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link. Thus, the network device can communicate with the remote terminal normally. For example, if the network device deletes or deactivates the NR direct connect link, the NR direct connect link does not exist or is unavailable. In this case, the network device activates SRB1 and / or SRB2 on the relay link, and the network device and the remote terminal transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link. For example, if an RLF occurs in the NR direct connection link, the NR direct connection link is unavailable. In this case, the network device activates SRB1 and / or SRB2 on the relay link, and the network device and the remote terminal transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link. Also, for example, when a network device reconfigures a relay link as a primary path, the network device activates SRB1 and / or SRB2 on the relay link, so that the network device and the remote terminal preferentially use the SRB on the primary path to transmit correlation signaling.

[0041] When the remote terminal first accesses the network device via a relay terminal and then adds an NR direct connection link, in order to quickly recover the radio link when the relay link is unavailable or fails, improve the robustness of the radio link, and avoid reconfiguration of SRB1 and / or SRB2 due to the network device and the remote terminal performing RRC connection reestablishment, in an optional embodiment, the method further comprises: an NR direct connect link is added by a remote terminal; The relay link is removed or deactivated; and A radio link failure (RLF) occurs on the air interface of the relay terminal; and An SL failure occurs between the relay terminal and the remote terminal; and and reconfiguring the NR direct connect link as the primary path, and if one of the following is satisfied, reconfiguring Split SRB1 on the NR direct connect link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connect link as SRB2.

[0042] In an optional embodiment, the method further comprises: (1) the relay link is deleted or deactivated; and (2) RLF occurs at the relay terminal. (3) RLF occurs on the PC5 link. (4) Reconfigure the NR direct connection link as the primary path. If one of the following conditions is met, reconfigure Split SRB1 on the NR direct connection link as SRB1 and / or reconfigure Split SRB2 on the NR direct connection link as SRB2. Here, if the remote terminal first accesses the network device through a relay terminal and then adds an NR direct connection link, and any one of the above (1) to (4) is satisfied, the network device reconfigures Split SRB1 on the NR direct connection link as SRB1 and / or reconfigures Split SRB2 on the NR direct connection link as SRB2, so that the network device and the remote terminal can transmit correlation signaling using SRB1 and / or SRB2 on the NR direct connection link, and thus the network device can communicate with the remote terminal normally. The occurrence of RLF in a relay terminal includes the occurrence of a failure in the relay terminal and / or the occurrence of RLF in the NR link of the relay terminal. Here, if the network device configures Split SRB1 on the NR direct connect link, the network device reconfigures Split SRB1 on the NR direct connect link as SRB1. If the network device configures Split SRB2 on the NR direct connect link, the network device reconfigures Split SRB2 on the NR direct connect link as SRB2. If the network device configures Split SRB1 and Split SRB2 on the NR direct connect link, the network device can reconfigure Split SRB1 on the NR direct connect link as SRB1 and / or Split SRB2 on the NR direct connect link as SRB2.

[0043] Taking Figure 4 as an example, when a relay link is unavailable or fails, the network device reconfigures the Split SRB on the NR direct connection link as a corresponding SRB. The implementation process is described as follows. In step 1, if the relay terminal detects its own NR radio link failure, i.e., if the relay terminal's Uu-RLF link failure occurs, it sends a PC5-RRC message to the remote terminal. In step 2, the remote terminal sends an RRC Reestablishment Request Message or an RLF report to the network equipment. Here, when the remote terminal receives the PC5-RRC message, the remote terminal initiates an RRC reestablishment flow and sends an RRC Reestablishment Request message directly to the network device using the already activated Split SRB1 and / or Split SRB2 on the NR direct connection link. Unlike the related art, when the remote terminal initiates the RRC reestablishment flow, it does not need to initiate the reestablishment of SRB1 and / or SRB2, and the processing delay of the corresponding Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) layers can be reduced. Alternatively, when the remote terminal receives the PC5-RRC message, the remote terminal can send an RLF report (relay UE RLF report) to the network device via the already activated Split SRB1 and / or Split SRB2 on the NR direct connection link without initiating an RRC reestablishment flow. Here, the RLF report includes the relay UE ID and the RLF reason of the relay terminal, and the RLF reason is: RLF occurs on the PC5 link, The occurrence of RLF in the relay terminal (specifically, the reason for RLF in the relay terminal may be included). Here, RLF may occur in the relay terminal, and RLF may occur in the NR link of the relay terminal. In step 3, the network equipment sends an RRC Reconfiguration Message to the remote terminal. Here, when the network device receives an RRC Reestablishment Request message transmitted from the remote terminal, the network device reconfigures the remote terminal by transmitting an RRC Reconfiguration Message to the remote terminal based on the RRC Reestablishment Request message, which specifically includes reconfiguring Split SRB1 on the NR direct connection link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2.

[0044] When the network device receives an RLF report from the remote terminal, it reconfigures the remote terminal by sending an RRC Reconfiguration Message to the remote terminal based on the received RLF report. This process specifically includes reconfiguring Split SRB1 on the NR direct connection link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2. The network device can also perform further processing based on the RLF reason of the relay terminal included in the RLF report. For example, if the RLF report includes an RLF occurrence in the NR link of the relay terminal, the network device restores the NR link of the relay terminal. If the RLF report includes an RLF occurrence in the PC5 link, the network device transmits correlation information of the relay terminal (e.g., the mobility of the relay terminal) to the remote terminal connected to the relay terminal.

[0045] 4 can be omitted, i.e., when RLF occurs in the PC5 link of the relay terminal, the relay terminal does not need to send a PC5-RRC message to the remote terminal. When the remote terminal detects that RLF occurs in the PC5 link, the remote terminal sends an RRC reestablishment request message or an RLF report to the network device.

[0046] In the case where the remote terminal first accesses the network device via an NR direct connection link and then adds a relay link, in order to quickly recover the radio link when the NR direct connection link is unavailable or fails, improve the robustness of the radio link, and avoid reconfiguration of SRB1 and / or SRB2 due to the network device and the remote terminal performing RRC connection reestablishment, in an optional embodiment, the method further comprises: (1) The NR direct connection link is deleted or deactivated; and (2) RLF occurs on the NR direct connection link, (3) Reconfiguring the relay link as a primary path. If one of the above conditions is met, reconfiguring Split SRB1 on the relay link as SRB1 and / or reconfiguring Split SRB2 on the relay link as SRB2. Here, if the remote terminal first accesses the network equipment via an NR direct connection link and then adds a relay link, SRB1 and / or SRB2 exist on the NR direct connection link between the remote terminal and the network equipment. If any one of the above conditions (1) to (3) is satisfied, the network equipment reconfigures Split SRB1 on the relay link as SRB1 and / or reconfigures Split SRB2 on the relay link as SRB2, thereby eliminating the need to reconfigure SRB1 and / or SRB2 via RRC reconfiguration. The network equipment and the remote terminal can transmit correlation signaling using SRB1 and / or SRB2 on the relay link, and thus the network equipment can communicate normally with the remote terminal. Here, if the network device configures Split SRB1 on the relay link, the network device reconfigures Split SRB1 on the relay link as SRB1. If the network device configures Split SRB2 on the relay link, the network device reconfigures Split SRB2 on the relay link as SRB2. If the network device configures Split SRB1 and Split SRB2 on the relay link, the network device can reconfigure Split SRB1 on the relay link as SRB1 and / or Split SRB2 on the relay link as SRB2.

[0047] Note that if Split SRB1 on the relay link is in a deactivated state, the network device first activates Split SRB1 on the relay link and then reconfigures Split SRB1 on the relay link as SRB1, and if Split SRB2 on the relay link is in a deactivated state, the network device first activates Split SRB2 on the relay link and then reconfigures Split SRB2 on the relay link as SRB2. In a scenario where a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, in order to rationally utilize the SRB, in an optional embodiment, the method further comprises: When an NR direct connection link is added or activated by a remote terminal, the method includes configuring the NR direct connection link as a primary path and configuring a relay link as a secondary path. Here, when an NR direct connection link is added or activated by a remote terminal, the network device configures the NR direct connection link as a primary path and the relay link as a secondary path. In this case, the network device and the remote terminal preferentially use an already activated SRB on the NR direct connection link to transmit correlation signaling.

[0048] In a scenario where a remote terminal first accesses a network device through an NR direct connection link and then adds a relay link, in order to rationally utilize the SRB, in an optional embodiment, the method further comprises: When a relay link is added or activated by the remote terminal, the relay link is configured as a primary path and the NR direct connection link is configured as a secondary path. Here, when a relay link is added or activated by a remote terminal, the network device configures the relay link as a primary path and the NR direct connection link as a secondary path, in which case the network device and the remote terminal preferentially use the already activated SRB on the relay link to transmit correlation signaling. In an alternative embodiment, the network device has configured a primary route and a secondary route, and the method further comprises: Deactivating the correlation SRB on the secondary path, or This includes maintaining a correlation SRB on the primary path and a correlation SRB on the secondary path in an activated state. Here, if a remote terminal first accesses the network device through a relay terminal and then adds an NR direct connection link, the network device configures the added NR direct connection link as the primary path and the relay link as the secondary path. Therefore, the network device deactivates SRB1 and / or SRB2 on the relay link, allowing the network device and the remote terminal to transmit correlation signaling using only the already activated SRBs on the NR direct connection link. The network device can keep Split SRB1 and / or Split SRB2 on the NR direct connection link and SRB1 and / or SRB2 on the relay link all in an activated state, allowing the network device and the remote terminal to transmit correlation signaling using the already activated SRBs on the NR direct connection link and the relay link.

[0049] If the remote terminal first accesses the network device via an NR direct connect link and then adds a relay link, the network device configures the added relay link as the primary path and the NR direct connect link as the secondary path. Therefore, the network device can deactivate SRB1 and / or SRB2 on the NR direct connect link, allowing the network device and the remote terminal to transmit correlation signaling using only the already activated SRBs on the relay link. The network device can keep Split SRB1 and / or Split SRB2 on the relay link and SRB1 and / or SRB2 on the NR direct connect link all active, allowing the network device and the remote terminal to transmit correlation signaling using the already activated SRBs on the NR direct connect link and the relay link. Correspondingly, an embodiment of the present disclosure further provides a link configuration method applied to a remote terminal, and as shown in FIG. 5, the method includes the following step 501: In step 501, the network device obtains the first SRB and / or the second SRB to be configured on the first link added by the remote terminal. Here, the first link is characterized as an NR direct connect link or a relay link. Here, when the remote terminal adds a first link, it obtains a first SRB and / or a second SRB configured by the network device on the added first link, where the first SRB includes Split SRB1 and the second SRB includes Split SRB2. For example, if a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, the remote terminal obtains Split SRB1 and / or Split SRB2 that the network device configures on the added NR direct connection link. For example, if a remote terminal first accesses a network device via an NR direct connection link and then adds a relay link, the remote terminal obtains Split SRB1 and / or Split SRB2 that the network device configures on the added relay link. In an optional embodiment, the method further comprises: This includes preferentially utilizing correlated SRBs on the primary path to transmit correlated signaling. Here, when the network device configures a primary path and a secondary path, the remote terminal preferentially uses the correlation SRB on the primary path to transmit correlation signaling such as RRC signaling and NAS signaling.

[0050] For example, in a scenario where a remote terminal first accesses a network device via a relay terminal and then adds an NR direct connection link, the network device configures the NR direct connection link as a primary path and the relay link as a secondary path, so that the remote terminal preferentially uses the already activated Split SRB1 and / or Split SRB2 on the NR direct connection link to transmit correlation signaling. Also, for example, in a scenario where a remote terminal first accesses a network device via an NR direct connection link and then adds a relay link, the network device configures the relay link as a primary path and configures the NR direct connection link as a secondary path, so that the remote terminal preferentially uses the already activated Split SRB1 and / or Split SRB2 on the relay link to transmit correlation signaling.

[0051] Hereinafter, the embodiments of the present disclosure will be described in combination with more specific application scenarios. In an application scenario in which a remote terminal first accesses a network device through a relay terminal and then adds an NR direct connection link, the link configuration method is as follows: In step 1, the network equipment configures a first SRB and / or a second SRB on the remote terminal's added NR direct connection link. Here, if the remote terminal first accesses the network equipment via a relay terminal and then adds an NR direct connection link, the network equipment adds and activates Split SRB1 and / or Split SRB2 on the NR direct connection link added by the remote terminal. In alternative embodiments, the network device may further deactivate SRB1 and / or SRB2 on the relay link, or keep SRB1 and / or SRB2 on the relay link in an activated state. Here, when the network device deactivates SRB1 and / or SRB2 on the relay link, the network device and the remote terminal transmit correlation signaling using only the already activated SRBs on the NR direct connection link.

[0052] If the network device maintains SRB1 and / or SRB2 on the relay link in an activated state, the network device and the remote terminal transmit correlation signaling using the already activated SRBs on the NR direct connection link and the relay link. In an optional embodiment, the method further comprises: The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and and reconfiguring the relay link as a primary path, the network device activates SRB1 and / or SRB2 on the relay link.

[0053] In an optional embodiment, the method further comprises: The relay link is removed or deactivated; and RLF occurs at the relay terminal, and RLF occurs on the PC5 link, and reconfiguring the NR direct connection link as the primary path, the network device reconfigures Split SRB1 on the NR direct connection link as SRB1, and / or the network device reconfigures Split SRB2 on the NR direct connection link as SRB2.

[0054] In an optional embodiment, the method further comprises: When an NR direct connection link is added or activated by a remote terminal, the network device configures the NR direct connection link as a primary path and configures the relay link as a secondary path. In an alternative embodiment, the network device has configured a primary route and a secondary route, and the method further comprises: The network equipment deactivates the correlation SRB on the secondary route, or The network device maintains a correlation SRB on the primary path and a correlation SRB on the secondary path in an activated state. In step 2, the remote terminal obtains the first and / or second SRBs that the network equipment configures on the added NR direct connection link. Here, the network device configures a primary route and a secondary route, and the remote terminal preferentially uses the SRB on the primary route to transmit correlation signaling. In an application scenario in which a remote terminal first accesses a network device through an NR direct connection link and then adds a relay link, the link configuration method is as follows: In step 1, the network device configures a first SRB and / or a second SRB on the relay link added by the remote terminal. Here, if a remote terminal first accesses a network device via an NR direct connection link and then adds a relay link, the network device may configure a first SRB and / or a second SRB on the relay link added by the remote terminal. Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; adding and activating Split SRB2 on the added relay link of the remote terminal. In an optional embodiment, the method further comprises: During activation of the NR direct connect link, the network device maintains SRB1 and / or SRB2 on the NR direct connect link in an activated state.

[0055] In an optional embodiment, the method further comprises: (1) The NR direct connection link is deleted or deactivated; and (2) RLF occurs on the NR direct connection link, (3) Reconfiguring the relay link as a primary path. If one of the above is satisfied, the network device reconfigures Split SRB1 on the relay link as SRB1 and / or reconfigures Split SRB2 on the relay link as SRB2. Here, after the remote terminal first accesses the network device via an NR direct connection link and then adds a relay link, if any one of the above (1) to (3) is satisfied, the network device reconfigures Split SRB1 on the relay link as SRB1 and / or reconfigures Split SRB2 on the relay link as SRB2. Note that if Split SRB1 on the relay link is in a deactivated state, the network device first activates Split SRB1 on the relay link and then reconfigures Split SRB1 on the relay link as SRB1, and if Split SRB2 on the relay link is in a deactivated state, the network device first activates Split SRB2 on the relay link and then reconfigures Split SRB2 on the relay link as SRB2.

[0056] In an optional embodiment, the method further comprises: When a relay link is added or activated by a remote terminal, the network equipment configures the relay link as a primary path and configures the NR direct connection link as a secondary path. In an alternative embodiment, the network device has configured a primary route and a secondary route, and the method further comprises: The network equipment deactivates the correlation SRB on the secondary route, or The network device maintains a correlation SRB on the primary path and a correlation SRB on the secondary path in an activated state. In step 2, the remote terminal obtains the first and / or second SRBs that the network device configures on the added relay link. Here, the network device configures a primary route and a secondary route, and the remote terminal preferentially uses the SRB on the primary route to transmit correlation signaling.

[0057] According to the link configuration method, device, remote terminal, network device, and storage medium of the embodiments of the present disclosure, the network device configures a first SRB and / or a second SRB on a first link added by the remote terminal, the first link being characterized as an NR direct connection link or a relay link, and the remote terminal obtains the first SRB and / or the second SRB that the network device configures on the first link added by the remote terminal. In this way, since the first SRB and / or the second SRB are configured on the first link added by the remote terminal without being located on the originally established path between the remote terminal and the network device, the first SRB and / or the second SRB do not become unavailable even if a failure occurs on the originally established path, thereby improving the robustness and reliability of the network.

[0058] To realize the link configuration method according to the embodiment of the present disclosure, the embodiment of the present disclosure further provides a link configuration device provided in the network equipment, and as shown in FIG. 6, the device includes a first configuration unit 61. The first configuration unit 61 is used to configure a first SRB and / or a second SRB on an added first link of a remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0059] In an alternative embodiment, the first configuration unit 61 is specifically used to add and activate Split SRB1 and / or add and activate Split SRB2 on the added NR direct connection link of the remote terminal. In an optional embodiment, the apparatus further comprises a second component unit; the second configuration unit deactivating SRB1 and / or SRB2 on the relay link; or It is used to enforce keeping SRB1 and / or SRB2 on the relay link in an activated state.

[0060] In an alternative embodiment, the first configuration unit 61 specifically comprises: Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; and adding and activating Split SRB2 on the added relay link of the remote terminal.

[0061] In an optional embodiment, the device further comprises a third component unit: The third configuration unit is used to maintain SRB1 and / or SRB2 on the NR direct connection link in an activated state during activation of the NR direct connection link. In an optional embodiment, the apparatus further comprises a fourth component unit: The fourth structural unit is The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and and reconfiguring the relay link as a primary path. If one of the following is satisfied, it is used to activate SRB1 and / or SRB2 on the relay link.

[0062] In an alternative embodiment, the device further comprises a fifth component unit: The fifth structural unit is The relay link is removed or deactivated; and RLF occurs at the relay terminal, and RLF occurs on the PC5 link, and reconfiguring the NR direct connect link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the NR direct connect link as SRB1 and / or reconfigure Split SRB2 on the NR direct connect link as SRB2.

[0063] In an alternative embodiment, the device further comprises a fifth component unit: The fifth structural unit is an NR direct connect link is added by a remote terminal; The relay link is removed or deactivated; and A radio link failure (RLF) occurs on the air interface of the relay terminal; and An SL failure occurs between the relay terminal and the remote terminal; and and reconfiguring the NR direct connect link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the NR direct connect link as SRB1 and / or reconfigure Split SRB2 on the NR direct connect link as SRB2.

[0064] In an optional embodiment, the apparatus further comprises a sixth component unit; The sixth structural unit is The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and and reconfiguring the relay link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the relay link as SRB1 and / or reconfigure Split SRB2 on the relay link as SRB2.

[0065] In an alternative embodiment, the device further comprises a seventh component unit: The seventh configuration unit is used to configure an NR direct connection link as a primary path and a relay link as a secondary path when the NR direct connection link is added or activated by a remote terminal.

[0066] In an alternative embodiment, the apparatus further comprises an eighth component unit: The eighth configuration unit is used to configure a relay link as a primary path and an NR direct connection link as a secondary path when the relay link is added or activated by a remote terminal.

[0067] In an alternative embodiment, the apparatus further comprises a ninth component unit: The ninth configuration unit deactivates the correlation SRB on the secondary path; or It is used to enforce keeping the correlation SRB on the primary path and the correlation SRB on the secondary path in an activated state. In practical application, the first configuration unit 61, the second configuration unit, the third configuration unit, the fourth configuration unit, the fifth configuration unit, the sixth configuration unit, the seventh configuration unit, the eighth configuration unit and the ninth configuration unit can be realized by a combination of a processor and a communication interface in a link configuration device.

[0068] Although the above embodiments have been described using only the division of each program module as an example when the link configuration device performs link configuration, in actual applications, the above processes can be assigned and completed by different program modules as needed, i.e., the internal structure of the device can be divided into different program modules to complete all or part of the processes described above. Furthermore, the link configuration device according to the above embodiments and the network device-side link configuration method embodiments belong to the same concept, and the specific implementation process should be referred to in detail in the method embodiments, and will not be further described here.

[0069] To realize the link configuration method according to the embodiment of the present disclosure, the embodiment of the present disclosure further provides a link configuration device disposed in the remote terminal, which includes an obtaining unit 71, as shown in FIG. The acquisition unit 71 is used to acquire the first SRB and / or the second SRB that the network equipment configures on the first link added by the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0070] In an alternative embodiment, the apparatus further comprises a transmission unit; The transmission unit is used to transmit correlation signaling by preferentially using correlation SRBs on the primary path. In practical application, the acquisition unit 71 and the transmission unit can be realized by a combination of a processor and a communication interface in a link configuration device.

[0071] Although the above embodiment of the link configuration device has been described using only the division of each program module as an example when configuring a link, in actual applications, the above processing can be assigned and completed by different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. Furthermore, the link configuration device according to the above embodiment and the remote terminal side link configuration method embodiment belong to the same concept, and the specific implementation process should be referred to in detail in the method embodiment, and will not be further described here.

[0072] Based on the hardware implementation of the above program modules, in order to realize the method on the network equipment side of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a network equipment, and as shown in FIG. 8, the network equipment 8 includes a first communication interface 801 and a first processor 802. The first communication interface 801 can perform information interaction with other network nodes. The first processor 802 is connected to the first communication interface 801 for information interaction with other network nodes, and is used to execute the methods of one or more technical solutions on the network device side when executing a computer program, which is stored in the first memory 803. Specifically, the first processor 802 configures a first signaling radio bearer SRB and / or a second SRB on a first link added by the remote terminal, where the first link is characterized as a New Radio (NR) direct connection link or a relay link.

[0073] In an alternative embodiment, the first processor 802 is specifically used to add and activate Split SRB1 and / or Split SRB2 on the added NR direct connection link of the remote terminal.

[0074] In an alternative embodiment, the first processor 802 is further used to deactivate SRB1 and / or SRB2 on the relay link or to keep SRB1 and / or SRB2 on the relay link in an activated state.

[0075] In an alternative embodiment, the first processor 802 specifically: Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; and adding and activating Split SRB2 on the added relay link of the remote terminal.

[0076] In an alternative embodiment, the first processor 802 is further used to maintain SRB1 and / or SRB2 on the NR direct connect link in an activated state during activation of the NR direct connect link.

[0077] In an alternative embodiment, the first processor 802 further comprises: The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and and reconfiguring the relay link as a primary path. If one of the following is satisfied, it is used to activate SRB1 and / or SRB2 on the relay link.

[0078] In an alternative embodiment, the first processor 802 further comprises: The relay link is removed or deactivated; and RLF occurs at the relay terminal, and RLF occurs on the PC5 link, and reconfiguring the NR direct connect link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the NR direct connect link as SRB1 and / or reconfigure Split SRB2 on the NR direct connect link as SRB2.

[0079] In an alternative embodiment, the first processor 802 further comprises: an NR direct connect link is added by a remote terminal; The relay link is removed or deactivated; and A radio link failure (RLF) occurs on the air interface of the relay terminal; and An SL failure occurs between the relay terminal and the remote terminal; and and reconfiguring the NR direct connect link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the NR direct connect link as SRB1 and / or reconfigure Split SRB2 on the NR direct connect link as SRB2.

[0080] In an alternative embodiment, the first processor 802 further comprises: The NR direct connect link is deleted or deactivated; and RLF occurs on an NR directly connected link, and and reconfiguring the relay link as the primary path. If one of the following conditions is met, it is used to reconfigure Split SRB1 on the relay link as SRB1 and / or reconfigure Split SRB2 on the relay link as SRB2.

[0081] In an alternative embodiment, the first processor 802 is further used to configure an NR direct connection link as a primary path and a relay link as a secondary path when the NR direct connection link is added or activated by the remote terminal.

[0082] In an alternative embodiment, the first processor 802 is further used to configure a relay link as a primary path and an NR direct connection link as a secondary path when the relay link is added or activated by the remote terminal.

[0083] In an alternative embodiment, the first processor 802 is further used to deactivate the correlated SRB on the secondary path or to keep the correlated SRB on the primary path and the correlated SRB on the secondary path in an activated state.

[0084] The specific processing procedures of the first processor 802 and the first communication interface 801 can be understood by referring to the above method. Of course, in actual application, the components in the network device 8 are coupled via a bus system 804. It is understood that the bus system 804 is used to realize communication between these components. The bus system 804 includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity, various buses are referred to as the bus system 804 in FIG. 8.

[0085] The first memory 803 in the embodiments of the present disclosure is used to store various types of data to support the operation of the network device 8. Examples of this data include any computer programs that are operated on the network device 8.

[0086] The method according to the embodiments of the present disclosure may be applied to or implemented by the first processor 802. The first processor 802 may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the method may be performed by an integrated logic circuit in hardware or by instructions in software form in the first processor 802. The first processor 802 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The first processor 802 may implement or execute each method, step, and logic block diagram disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or any other conventional processor. The method steps disclosed in the embodiments of the present disclosure may be combined and embodied directly as a hardware decoding processor or as a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, which is located in the first memory 803, and the first processor 802 reads the information in the first memory 803 and combines with its hardware to complete the steps of the above method.

[0087] In an exemplary embodiment, the network equipment 8 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate Arrays (FPGAs), general-purpose processors, controllers, Micro Controller Units (MCUs), Microprocessors, or other electronic elements used to perform the above methods.

[0088] Based on the hardware implementation of the above program modules, in order to realize the method on the remote terminal side of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a remote terminal, and as shown in FIG. 9, the remote terminal 9 includes a second communication interface 901 and a second processor 902. The second communication interface 901 can perform information interaction with other network nodes. The second processor 902 is connected to the second communication interface 901 for information interaction with other network nodes, and is used to implement the methods of one or more technical solutions on the remote terminal side when executing a computer program, which is stored in the second memory 903. Specifically, the second processor 902 is used to obtain a first SRB and / or a second SRB that the network equipment configures on a first link added by the remote terminal, where the first link is characterized as an NR direct connection link or a relay link. In an alternative embodiment, the second processor 902 is further adapted to transmit correlated signaling preferentially using correlated SRBs on the primary path. The specific processing procedures of the second processor 902 and the second communication interface 901 can be understood by referring to the above method. Of course, in actual application, the respective components in the remote terminal 9 are coupled via a bus system 904. It is understood that the bus system 904 is used to realize communication connections between these components. The bus system 904 further includes a power bus, a control bus, and a status signal bus in addition to a data bus. However, for clarity of explanation, the various buses are referred to as the bus system 904 in FIG. 9.

[0089] Second memory 903 in embodiments of the present disclosure is used to store various types of data to support the operation of remote terminal 9. Examples of this data include any computer programs operated on remote terminal 9.

[0090] The method according to the embodiment of the present disclosure may be applied to or implemented by the second processor 902. The second processor 902 may be an integrated circuit chip capable of signal processing. In the implementation process, each step of the method may be executed by an integrated logic circuit in hardware or by instructions in software form in the second processor 902. The second processor 902 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The second processor 902 may implement or execute each method, step, and logic block diagram disclosed in the embodiment of the present disclosure. The general-purpose processor may be a microprocessor or any other conventional processor. The method steps disclosed in the embodiment of the present disclosure may be combined and directly implemented as a hardware decoding processor or a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which may be located in the second memory 903. The second processor 902 reads information in the second memory 903 and combines it with the hardware to complete the method steps.

[0091] In an exemplary embodiment, the remote terminal 9 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic devices and used to perform the above methods.

[0092] It should be understood that the memory (first memory 803, second memory 903) of the embodiments of the present disclosure may be volatile or nonvolatile memory, or may include both volatile and nonvolatile memory. Here, nonvolatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disk, or compact disc read-only memory (CD-ROM), and magnetic surface memory may be magnetic disk memory or magnetic tape memory. Volatile memory may be random access memory (RAM) used as an external cache. By way of example and not limitation, many forms of RAM are available.Examples include static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synclink dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). Memory as described in embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.

[0093] In an exemplary embodiment, the embodiments of the present disclosure further provide a storage medium, i.e., a computer storage medium (specifically, a computer-readable storage medium). For example, a first memory 803 storing a computer program can be included. The computer program can be executed by a first processor 802 of the network device 8 to complete the steps of the network device-side method. Also, for example, a second memory 803 storing a computer program can be included. The computer program can be executed by a second processor 802 of the remote terminal 9 to complete the steps of the remote terminal-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0094] Note that the terms "first," "second," etc. do not necessarily describe a particular order or priority, but rather serve to distinguish between similar objects. The term "and / or" in this specification is merely a relation describing related objects, and may mean that three relations, for example, A and / or B, can exist, and may represent that A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the term "at least one" in this specification means any combination of at least two of any one or more of a plurality, for example, including at least one of A, B, and C may mean including any one or more elements selected from the set consisting of A, B, and C. Furthermore, the technical solutions in the embodiments of the present disclosure may be arbitrarily combined if they do not conflict with each other. The above are merely preferred embodiments of the present disclosure and are not intended to limit the scope of protection of the present disclosure.

Claims

1. A link configuration method applied to a network device, comprising: configuring a first signaling radio bearer (SRB) and / or a second signaling radio bearer (SRB) on the added first link of the remote terminal; wherein the first link is characterized as a New Radio (NR) direct connection link or a relay link.

2. Configuring a first SRB and / or a second SRB on the added first link of the remote terminal includes:

2. The method of claim 1, further comprising adding and activating a Split SRB1 and / or adding and activating a Split SRB2 on an added NR direct connection link of a remote terminal.

3. The method further comprises: deactivating SRB1 and / or SRB2 on the relay link; or 3. The method of claim 2, comprising maintaining SRB1 and / or SRB2 on the relay link in an activated state.

4. Configuring a first SRB and / or a second SRB on the added first link of the remote terminal includes: Adding a Split SRB1 on the added relay link of the remote terminal and configuring the Split SRB1 in a deactivated state; Adding a Split SRB2 on the added relay link of the remote terminal and configuring the Split SRB2 in a deactivated state; adding and activating Split SRB1 on the added relay link of the remote terminal; and b. adding and activating Split SRB2 on the added relay link of the remote terminal.

5. The method further comprises: The method of claim 4, comprising maintaining SRB1 and / or SRB2 on the NR direct connect link in an activated state during activation of the NR direct connect link.

6. The method further comprises: The NR direct connect link is deleted or deactivated; and A radio link failure (RLF) occurs in the NR direct connection link; and and activating SRB1 and / or SRB2 on the relay link if one of the following conditions is satisfied: reconfiguring the relay link as a primary path.

7. The method further comprises: An NR direct connect link is added by a remote terminal; The relay link is removed or deactivated; and a radio link failure (RLF) occurs on the air interface of the relay terminal; A sidelink (SL) failure occurs between the relay terminal and the remote terminal; and reconfiguring the NR direct connection link as a primary path. If one of the following is satisfied, reconfiguring Split SRB1 on the NR direct connection link as SRB1 and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2. The method according to any one of claims 1 to 3, further comprising:

8. The method further comprises: The NR direct connect link is deleted or deactivated; and An RLF occurs in an NR directly connected link; and reconfiguring a Split SRB1 on the relay link as an SRB1 and / or a Split SRB2 on the relay link as an SRB2 when one of the following conditions is satisfied: reconfiguring the relay link as a primary path.

9. The method further comprises:

2. The method of claim 1, comprising: when an NR direct connection link is added or activated by a remote terminal, configuring the NR direct connection link as a primary path and configuring a relay link as a secondary path.

10. The method further comprises:

2. The method of claim 1, comprising: when a relay link is added or activated by a remote terminal, configuring the relay link as a primary path and configuring an NR direct connect link as a secondary path.

11. The method further comprises: deactivating the correlated SRB on the secondary path, or 11. The method of claim 9 or 10, comprising maintaining correlated SRBs on the primary path and correlated SRBs on the secondary path in an activated state.

12. 1. A link configuration method applied to a remote terminal, comprising: The network device acquires a first SRB and / or a second SRB configured on the added first link of the remote terminal; wherein the first link is characterized as an NR direct connection link or a relay link.

13. The method further comprises:

13. The method of claim 12, comprising preferentially utilizing correlated SRBs on a primary path to transmit correlated signaling.

14. A link configuration device including a first configuration unit, the first configuration unit is used to configure a first SRB and / or a second SRB on the added first link of the remote terminal; wherein the first link is characterized as an NR direct connection link or a relay link.

15. A link configuration device including an acquisition unit, The acquiring unit is used to acquire a first SRB and / or a second SRB configured by a network device on the first link added by the remote terminal; wherein the first link is characterized as an NR direct connection link or a relay link.

16. A network device including a first processor and a first communication interface, the first processor is used to configure a first SRB and / or a second SRB on the added first link of the remote terminal; wherein the first link is characterized as an NR direct connect link or a relay link.

17. a remote terminal including a second processor and a second communication interface, The second processor is used to obtain a first SRB and / or a second SRB configured by a network device on the added first link of the remote terminal; wherein the first link is characterized as an NR direct connect link or a relay link.

18. A network device including a first processor and a first memory for storing a computer program executable on the first processor, 12. A network device, wherein the first processor is adapted to perform the steps of the method according to any one of claims 1 to 11 when executing the computer program.

19. a remote terminal including a second processor and a memory for storing a computer program executable on the second processor, 14. A remote terminal, wherein the second processor is adapted to perform the steps of the method according to claim 12 or 13 when executing the computer program.

20. A storage medium on which a computer program is stored, A storage medium on which the computer program implements the steps of the method according to any one of claims 1 to 11 or the steps of the method according to claim 12 or 13 when executed by a processor.

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