Link configuration method, apparatus, remote terminal, network equipment, 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 based on Chinese Patent Application No. 202211104951.4, filed in China on September 9, 2022, the entire content of which is incorporated herein by reference.

[0002] This disclosure relates to the field of communication technologies, and particularly to a link configuration method, apparatus, remote terminal, network device, and storage medium.

Background Art

[0003] In related technologies, a remote (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 that the robustness of the network is insufficient.

Summary of the Invention

Problems to be Solved by the Invention

[0004] To solve the problems in related technologies, embodiments of this disclosure provide a link configuration method, apparatus, remote terminal, network device, and storage medium.

Means for Solving the Problems

[0005] The technical solution of the embodiments of this disclosure can be realized as follows.

[0006] Embodiments of this disclosure provide a link configuration method applied to a network device, the method including: the network device configuring a first Signaling Radio Bearer (SRB) and / or a second SRB on a first link added by a remote terminal (Remote UE), where the first link is characterized as an NR direct connection link or a relay link. In the above embodiment, configuring the first SRB and / or second SRB on the additional first link of the remote terminal is: This includes adding and activating Split SRB1 and / or Split SRB2 on the NR direct connection link added to the remote terminal.

[0007] In the above embodiment, the method further includes: Deactivating SRB1 and / or SRB2 on the relay link, This includes maintaining SRB1 and / or SRB2 on the relay link in an activated state. In the above embodiment, configuring the first SRB and / or second SRB on the additional first link of the remote terminal is: Add a Split SRB1 on the relay link added by the remote terminal, and configure the Split SRB1 to be inactive. Add a Split SRB2 on the relay link added to the remote terminal, and configure the Split SRB2 to be inactive. Add and activate Split SRB1 on the relay link added to the remote terminal, This includes at least one of the following: adding and activating Split SRB2 on the relay link added by the remote terminal. In the above embodiment, the method further includes: This includes maintaining SRB1 and / or SRB2 on the NR direct connection link in an activated state during the activation of the NR direct connection link.

[0008] In the above embodiment, the method further includes: The NR direct connection link will be deleted or deactivated, A Radio Link Failure (RLF) may occur in the NR direct connection link, This includes reconfiguring the relay link as the primary path, and activating SRB1 and / or SRB2 on the relay link if one of the following conditions is met.

[0009] In the above embodiment, the method further includes: The relay link will be deleted or deactivated, RLF occurs at the relay terminal, RLF occurs on the PC5 link, This includes, if one of the following conditions is met, reconfiguring an NR direct connection link as the primary path, reconfiguring Split SRB1 on the NR direct connection link as SRB1, and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2.

[0010] In the above embodiment, the method further includes: The NR direct connection link is added by the remote terminal, The relay link will be deleted or deactivated, A wireless link failure (RLF) occurs in the air interface of the relay terminal, A sidelink (SL) failure occurs between the relay terminal and the remote terminal, This includes, if one of the following conditions is met, reconfiguring an NR direct connection link as the primary path, reconfiguring Split SRB1 on the NR direct connection link as SRB1, and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2.

[0011] In the above embodiment, the method further includes: The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, This includes reconfiguring the relay link as the primary path, and, if one of the following conditions is met, reconfiguring Split SRB1 on the relay link as SRB1, and / or reconfiguring Split SRB2 on the relay link as SRB2.

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

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

[0014] In the above aspect, the method further includes deactivating the correlated SRB on the secondary path, or including maintaining the correlated SRB on the primary path and the correlated SRB on the secondary path in an active state.

[0015] Embodiments of the present disclosure further provide a link configuration method applied to a remote terminal. The method includes obtaining a first SRB and / or a second SRB configured by a network device 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.

[0016] In the above aspect, the method further includes preferably using the correlated SRB on the primary path to transmit correlated signaling.

[0017] Embodiments of the present disclosure further provide 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 a first link added by a remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

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

[0019] Embodiments of this disclosure further provide network equipment 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 additional first link of a remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0020] Embodiments of this disclosure further provide a remote terminal including a second processor and a second communication interface. The second processor is used to acquire the first SRB and / or second SRB configured by the network equipment on the additional first link of the remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0021] Embodiments of the present disclosure further provide 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 one of the steps on the network device side when executing the computer program.

[0022] Embodiments of the present disclosure further provide a remote terminal including a second processor and memory for storing a computer program executable on the second processor. Here, the second processor executes one of the steps on the remote terminal side when executing the computer program.

[0023] Embodiments of the present disclosure further provide a storage medium on which a computer program is stored, which enables any of the steps on the network device side or any of the steps on the remote terminal side when the computer program is executed by a processor. [Effects of the Invention]

[0024] According to the link configuration method, apparatus, remote terminal, network equipment, and storage medium of the embodiments of this 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 is characterized as an NR direct connection link or a relay link, and the remote terminal acquires the first SRB and / or second SRB configured by the network equipment on the first link added by the remote terminal. In this way, since the first SRB and / or second SRB are configured on the first link added by the remote terminal without being located on the initially established path between the remote terminal and the network equipment, the first SRB and / or second SRB will not become unavailable even if a failure occurs in the initially established path, thus improving the robustness and reliability of the network. [Brief explanation of the drawing]

[0025] [Figure 1] This is a schematic diagram of the communication system architecture in related technologies. [Figure 2] This is a schematic flowchart of the link configuration method according to the embodiment of the present disclosure. [Figure 3] This is a schematic diagram of the interaction of the link configuration method according to the embodiment of the present disclosure. [Figure 4] This is a schematic diagram of the interaction of the link configuration method according to the embodiment of the present disclosure. [Figure 5] This is a schematic flowchart of the link configuration method according to the embodiment of the present disclosure. [Figure 6] This is a schematic diagram of the configuration of a linkage device according to an embodiment of the present disclosure. [Figure 7] This is a schematic diagram of the configuration of a linkage device according to an embodiment of the present disclosure. [Figure 8] This is a schematic diagram of the structure of a remote terminal according to an embodiment of the present disclosure. [Figure 9] This is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. [Modes for carrying out the invention]

[0026] The related technologies provide the following two types of network access methods for remote UEs: Strategy 1: A remote terminal can access network equipment such as a base station by selecting either a direct NR connection link or a non-direct connection link. For example, the remote terminal can access network equipment by selecting a direct NR connection link based on configured selection criteria, or by accessing network equipment via a relay UE (relay UE). In other words, the remote terminal can directly switch between direct NR connection links and non-direct connection links. In the case of a connected remote terminal, the remote terminal reports measurement information to the network equipment, re-selects the relay UE based on the configuration transmitted from the network equipment, or switches to a direct NR connection link. However, Strategy 1 has the problem of low network throughput. Strategy 2: As shown in Figure 1, the remote terminal accesses the network equipment simultaneously via the relay terminal and the NR direct connection link. The Uu port is used for communication between the terminal and the network equipment, and the PC5 port is used for communication between terminals. In one case, the remote terminal first establishes a connection with the network equipment via the relay UE, then reports measurement information to the network equipment, and can establish an NR direct connection based on the configuration transmitted from the network equipment, i.e., add 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 can select and add a relay link based on the configuration transmitted from the network equipment.

[0027] In Strategy 2, the remote terminal is in multi-connection mode after adding an NR direct connection link or relay link. The added NR direct connection link or relay link may have one or more radio bearers (RBs) used to improve system transmission reliability or throughput. Regarding Strategy 2, while it improves network throughput, in Strategy 2, SRB1 and SRB2 are established on the initially established path. If the initially established path fails, both SRB1 and SRB2 become unavailable. This results in a failure between the remote terminal and network equipment, and the network lacks robustness due to excessive reliance on the initially established path. For example, when a remote terminal establishes a Radio Resource Control (RRC) connection with network equipment via a relay UE, SRB1 / SRB2 and the Data Radio Bearer (DRB) are established via the relay UE. If the relay link between the remote terminal and the network equipment fails, both SRB1 and SRB2 become unavailable, resulting in insufficient network robustness. When a remote terminal establishes an RRC connection directly with network equipment, SRB1 / SRB2 and the DRB are established between the remote terminal and the network equipment, and only the Split DRB exists on the relay UE. If the direct NR connection link between the remote terminal and the network equipment fails, both SRB1 and SRB2 become unavailable, resulting in insufficient network robustness. Based on this, in each embodiment of the present disclosure, the network equipment configures a first SRB and / or a second SRB on an additional first link of the remote terminal, the first link is characterized as an NR direct connection link or a relay link, and the remote terminal obtains the first SRB and / or second SRB configured by the network equipment on the additional first link of the remote terminal, and in this way, since the first SRB and / or second SRB are configured on the additional first link of the remote terminal without being located on the initially established path between the remote terminal and the network equipment, the first SRB and / or second SRB will not become unavailable even if the initially established path between the remote terminal and the network equipment fails, thereby improving the robustness and reliability of the network.

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

[0029] Embodiments of this disclosure provide a link configuration method applicable to network equipment, the network equipment including a base station, and the method is This includes configuring a first SRB and / or a second SRB on the first link added by the terminal. Here, the first link is characterized as either 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) connects directly to a network device. The non-direct connection link may 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 (Remote UE).

[0030] Embodiments of this disclosure further provide a link configuration method applicable to network equipment, the network equipment including a base station, and the method includes the following steps, as shown in Figure 2. In step 201, the first SRB and / or second SRB are configured on the first link added by the remote terminal. Here, the first link is characterized as either 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 network equipment. A relay link is also called a PC5 link. In this case, if the remote terminal first accesses the network equipment via the relay terminal and then adds an NR direct connection link, the network equipment configures the first SRB and / or second SRB on the NR direct connection link added by the remote terminal. If a remote terminal first accesses a network device via a direct NR connection link, and then adds a relay link, the network device will then access the remote terminal. Relay link The above constitutes the first SRB and / or the second SRB. Furthermore, the first and second SRBs may be used to transmit RRC signaling and / or non-access layer (NAS) signaling. The first SRB includes Split SRB1, and the second SRB includes Split SRB2.

[0031] Using Figure 3 as an example, the process by which network equipment constitutes the first SRB and / or the second SRB will be explained. As shown in Figure 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 transmitted from the network device and reports the measurement results to the network device. In step 2, the network device sends an RRC Reconfiguration Message to the remote terminal. In step 3, the remote terminal sends a preamble to the network device. 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 device. In step 6, the network device sends an RRC Setup Message to the remote terminal. The remote terminal and network equipment complete random access through steps 3 to 6. The RRC Setup Message is sent by the network equipment via SRB0 and includes the relevant configuration of the first SRB; that is, the network equipment configures the first SRB via 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 device. In step 8, the network device sends an RRC Reconfiguration Message to the remote terminal. Here, the RRC Reconfiguration Message includes the relevant configuration for the second SRB; that is, network devices configure the second SRB via the RRC Reconfiguration Message. The second SRB is Split SRB2. In step 9, the network device sends an RRC Reconfiguration Complete Message to the remote terminal.

[0032] In a scenario where a remote terminal first accesses network equipment via a relay terminal, and then adds an NR direct connection link, in a selective embodiment, the first SRB and / or second SRB are configured on the first link added by the remote terminal. This includes adding and activating Split SRB1 on the NR direct connection link added to the remote terminal, and / or adding and activating 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 will add a Split SRB1 on the NR direct connection link added by the remote terminal and activate the already 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 will add a Split SRB2 on the NR direct connection link added by the remote terminal and activate the already added Split SRB2. For example, if a remote terminal first accesses network equipment via a relay terminal and then adds an NR direct connection link, the network equipment will add and activate Split SRB1 and then Split SRB2 on the NR direct connection link added by the remote terminal.

[0033] In a scenario where a remote terminal first accesses network equipment via a relay terminal, and then an NR direct connection link is added, SRB1 and / or SRB2 are present on the relay link between the relay terminal and the network equipment. As a result, even if a failure occurs in the relay link between the relay terminal and the network equipment, the remote terminal can transmit correlation signaling using Split SRB1 and / or Split SRB2 on the NR direct connection link. In this way, communication between the remote terminal and the network equipment is maintained, improving network reliability and stability.

[0034] In a scenario where a remote terminal first accesses a network device via a relay terminal, and then an NR direct connection link is added, SRB1 and / or SRB2 are present on the relay link between the relay terminal and the network device, and based on this, in a selective embodiment, the method further... Deactivating SRB1 and / or SRB2 on the relay link, This includes maintaining SRB1 and / or SRB2 on the relay link in an activated state. 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 deactivates SRB1 on the relay link when SRB1 on the relay link is active, deactivates SRB2 on the relay link when SRB2 on the relay link is active, and deactivates both SRB1 and SRB2 on the relay link when both SRB1 and SRB2 on the relay link are active. In this case, an active SRB can transmit correlation signaling, while an inactive SRB cannot transmit correlation signaling.

[0035] Of course, if a remote terminal first accesses network equipment via a relay terminal and then adds an NR direct connection link, the network equipment can maintain the 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 correlated signaling using the already activated SRBs on the NR direct connection link and the relay link.

[0036] In a scenario where a remote terminal first accesses network equipment via an NR direct connection link, and then adds a relay link, in a selective embodiment, the first SRB and / or second SRB are configured on the first link added by the remote terminal. Add a Split SRB1 on the relay link added by the remote terminal, and configure the Split SRB1 to be inactive. Add a Split SRB2 on the relay link added to the remote terminal, and configure the Split SRB2 to be inactive. Add and activate Split SRB1 on the relay link added to the remote terminal, This includes at least one of the following: adding and activating Split SRB2 on the relay link added by the remote terminal. Here, if a remote terminal first accesses the network equipment via a direct NR connection link and then adds a relay link, the network equipment will add Split SRB1 and / or Split SRB2 on the relay link added by the remote terminal, and the network equipment can either activate or deactivate the already added Split SRB1 and / or Split SRB2. Specifically, this is as follows:

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

[0038] Furthermore, in a scenario where a remote terminal first accesses network equipment via an NR direct connection link, and then an intermediate link is added, SRB1 and / or SRB2 are present on the NR direct connection link between the remote terminal and the network equipment. As a result, even if a failure occurs in the NR direct connection link between the remote terminal and the network equipment, the remote terminal can transmit correlation signaling using Split SRB1 and / or Split SRB2 on the intermediate link. In this way, communication between the remote terminal and the network equipment is maintained, improving network reliability and stability.

[0039] In a scenario where a remote terminal first accesses network equipment via an NR direct connection link, and then an additional relay link is added, SRB1 and / or SRB2 are present on the NR direct connection link between the remote terminal and the network equipment, and based on this, in a selective embodiment, the method further... This includes maintaining SRB1 and / or SRB2 on the NR direct connection link in an activated state during the activation of the NR direct connection link. Here, during the activation of the NR direct connection link, the network equipment maintains the SRB1 and / or SRB2 on the NR direct connection link in an activated state. This allows the network equipment and remote terminals to 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 network equipment via a relay terminal, and then adds an NR direct connection link, if the added NR direct connection link becomes unavailable or fails, in order to quickly recover the wireless link, improve the robustness of the wireless link, and avoid SRB reconfiguration by the network equipment and remote terminal performing RRC connection reconstruction, in a selective embodiment, the method further: (1) The NR direct connection link will be deleted or deactivated, (2) RLF occurs in the NR direct connection link, (3) Reconfiguring the relay link as the primary path, and if one of the following conditions is met, activating SRB1 and / or SRB2 on the relay link. In this scenario, where a remote terminal first accesses a network device via a relay terminal, and then adds an NR direct connection link, SRB1 and / or SRB2 are present on the relay link between the relay terminal and the network device. If any one of the above conditions (1) to (3) is met, the network device can activate SRB1 and / or SRB2 on the relay link, allowing the network device and the remote terminal to transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link, and thus the network device can communicate normally with the remote terminal. For example, if a network device removes or deactivates an NR direct connection link, the NR direct connection link will not exist or will be unavailable. In this case, the network device and the remote terminal will transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link by activating SRB1 and / or SRB2 on the relay link. For example, if an RLF occurs on the NR direct connection link, the NR direct connection link becomes unavailable. In this case, the network equipment activates SRB1 and / or SRB2 on the relay link, allowing the network equipment and the remote terminal to transmit correlation signaling using the already activated SRB1 and / or SRB2 on the relay link. For example, when a network device reconfigures a relay link as the primary path, the network device activates SRB1 and / or SRB2 on the relay link, allowing the network device and the remote terminal to preferentially use the SRB on the primary path to transmit correlation signaling.

[0041] If a remote terminal first accesses network equipment via a relay terminal and then adds an NR direct connection link, and the relay link becomes unavailable or fails, in order to quickly recover the wireless link, improve the robustness of the wireless link, and avoid the reconfiguration of SRB1 and / or SRB2 by the network equipment and the remote terminal performing RRC connection reconstruction, in an optional embodiment, the method further: The NR direct connection link is added by the remote terminal, The relay link will be deleted or deactivated, A wireless link failure (RLF) occurs in the air interface of the relay terminal, An SL failure occurs between the relay terminal and the remote terminal, This includes, if one of the following conditions is met, reconfiguring an NR direct connection link as the primary path, reconfiguring Split SRB1 on the NR direct connection link as SRB1, and / or reconfiguring Split SRB2 on the NR direct connection link as SRB2.

[0042] In a selective embodiment, the method further includes: (1) The relay link will be deleted or deactivated, (2) When an RLF occurs at the relay terminal, (3) RLF occurs in the PC5 link, (4) Reconfiguring the NR direct connection link as the primary path If either of the above conditions is met, Split SRB1 on the NR direct connection link is reconfigured as SRB1, and / or Split SRB2 on the NR direct connection link is reconfigured as SRB2. Here, if the remote terminal first accesses the network equipment via the relay terminal, and then adds an NR direct connection link, and if any one of the above conditions (1) to (4) is met, the network equipment will reconfigure Split SRB1 on the NR direct connection link as SRB1 and / or Split SRB2 on the NR direct connection link as SRB2, thereby enabling the network equipment and the remote terminal to transmit correlation signaling using SRB1 and / or SRB2 on the NR direct connection link, and thus the network equipment can communicate normally with the remote terminal. An RLF occurring at the relay terminal includes a failure at the relay terminal and / or an RLF occurring at the relay terminal's NR link. Here, if the network device has configured Split SRB1 on the NR direct connection link, the network device reconfigures Split SRB1 on the NR direct connection link as SRB1. If the network device has configured Split SRB2 on the NR direct connection link, the network device reconfigures Split SRB2 on the NR direct connection link as SRB2. If the network device has configured Split SRB1 and Split SRB2 on the NR direct connection link, the network device can reconfigure Split SRB1 on the NR direct connection link as SRB1, and / or reconfigure Split SRB2 on the NR direct connection link as SRB2.

[0043] Using Figure 4 as an example, the process by which network equipment reconfigures the Split SRB on the NR direct connection link as the corresponding SRB when the relay link is unavailable or fails is explained as follows. In step 1, if the relay terminal detects a failure in its own NR radio link, i.e., a failure in the relay terminal's Uu-RLF link, 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 device. Here, when the remote terminal receives a PC5-RRC message, it initiates an RRC reconstruction flow and uses the already activated Split SRB1 and / or Split SRB2 on the NR direct connection link to send an RRC Reestablishment Request Message directly to the network equipment. Unlike related technologies, when the remote terminal initiates the RRC reconstruction flow, it does not need to initiate the reconstruction of SRB1 and / or SRB2, and the corresponding Packet Data Convergence Protocol (PDCP) and Radio Link Control (RLC) can reduce processing delays. Alternatively, if the remote terminal receives a PC5-RRC message, it can send an RLF report (relay UE RLF report) to the network equipment via the already activated Split SRB1 and / or Split SRB2 on the NR direct connection link without initiating the RRC reconstruction 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, This includes at least one of the following: an RLF occurs at the relay terminal (which may specifically include the reason for the RLF at the relay terminal). Here, RLF occurs in the relay terminal. In step 3, the network device sends an RRC Reconfiguration Message to the remote terminal. Here, when a network device receives an RRC Reestablishment Request Message from a remote terminal, it reconfigures the remote terminal by sending an RRC Reconfiguration Message to the remote terminal based on the RRC Reestablishment Request Message. 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.

[0044] When a network device receives an RLF report transmitted from a 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 may also take further action based on the RLF reason of the relay terminal included in the RLF report. For example, if the RLF report includes an RLF occurring on the relay terminal's NR link, the network device restores the relay terminal's NR link. If the RLF report includes an RLF occurring on the PC5 link, the network device sends correlation information of the relay terminal (e.g., the relay terminal's mobility) to the remote terminal connected to the relay terminal.

[0045] In an optional embodiment, step 1 in Figure 4 can be omitted; that is, if an RLF occurs on 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 an RLF has occurred on the PC5 link, the remote terminal sends an RRC Reestablishment Request Message or an RLF report to the network equipment.

[0046] If a remote terminal first accesses network equipment via an NR direct connection link, and then adds a relay link, in an optional embodiment, to quickly recover the wireless link, improve the robustness of the wireless link, and avoid reconfiguration of SRB1 and / or SRB2 by the network equipment and the remote terminal performing RRC connection reconstruction, when the NR direct connection link becomes unavailable or fails, the method further includes: (1) The NR direct connection link will be deleted or deactivated, (2) RLF occurs in the NR direct connection link, (3) Reconfiguring the relay link as the primary path, and if one of the above conditions is met, this includes 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, then 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 met, the network equipment reconfigures Split SRB1 on the relay link as SRB1 and / or Split SRB2 on the relay link as SRB2. This eliminates the need to reconfigure SRB1 and / or SRB2 via RRC reconstruction. The network equipment and the remote terminal can transmit correlation signaling using SRB1 and / or SRB2 on the relay link, and in this way, the network equipment can communicate normally with the remote terminal. If the network device has configured Split SRB1 on the relay link, the network device reconfigures Split SRB1 on the relay link as SRB1. If the network device has configured Split SRB2 on the relay link, the network device reconfigures Split SRB2 on the relay link as SRB2. If the network device has configured both Split SRB1 and Split SRB2 on the relay link, the network device can reconfigure Split SRB1 on the relay link as SRB1, and / or reconfigure Split SRB2 on the relay link as SRB2.

[0047] If Split SRB1 on the relay link is inactive, the network equipment will first activate Split SRB1 on the relay link, and then reconfigure Split SRB1 on the relay link as SRB1. If Split SRB2 on the relay link is inactive, the network equipment will first activate Split SRB2 on the relay link, and then reconfigure Split SRB2 on the relay link as SRB2. In a scenario where a remote terminal first accesses network equipment via a relay terminal, and then adds an NR direct connection link, in order to rationally utilize SRB, in a selective embodiment, the method further... When an NR direct connection link is added or activated by a remote terminal, this includes configuring the NR direct connection link as the primary path and the relay link as the secondary path. In this case, if an NR direct connection link is added or activated by a remote terminal, the network equipment configures the NR direct connection link as the primary path and the relay link as the secondary path. In this case, the network equipment and the remote terminal preferentially utilize the already activated SRB on the NR direct connection link to transmit correlation signaling.

[0048] In a scenario where a remote terminal first accesses network equipment via a direct NR connection link, and then an additional relay link is added, in order to rationally utilize the SRB, in a selective embodiment, the method further includes: This includes configuring the relay link as the primary path and the NR direct connection link as the secondary path when the relay link is added or activated by a remote terminal. In this case, if a relay link is added or activated by a remote terminal, the network equipment configures the relay link as the primary path and the NR direct connection link as the secondary path. In this case, the network equipment and the remote terminal preferentially utilize the already activated SRB on the relay link to transmit correlation signaling. In a selective embodiment, where network devices constitute a primary path and a secondary path, the method further includes: Deactivating correlated SRBs on secondary pathways, or This includes maintaining the correlated SRB on the primary pathway and the correlated SRB on the secondary pathway in an activated state. Here, if a remote terminal first accesses the network device via 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, by deactivating SRB1 and / or SRB2 on the relay link, the network device and the remote terminal can transmit correlation signaling using only the already activated SRBs on the NR direct connection link. The network device can keep all Split SRB1 and / or Split SRB2 on the NR direct connection link and SRB1 and / or SRB2 on the relay link active, thereby allowing the network device and the remote terminal to transmit correlation signaling using the already activated SRBs on both the NR direct connection link and the relay link.

[0049] If 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 added relay link as the primary path and the NR direct connection link as the secondary path. Therefore, the network device can deactivate SRB1 and / or SRB2 on the NR direct connection link, allowing the network device and the remote terminal to transmit correlation signaling using only the already activated SRBs on the relay link. Alternatively, the network device can maintain all Split SRB1 and / or Split SRB2 on the relay link, and SRB1 and / or SRB2 on the NR direct connection link, in an activated state, allowing the network device and the remote terminal to transmit correlation signaling using the already activated SRBs on both the NR direct connection link and the relay link. Correspondingly, embodiments of the present disclosure further provide a link configuration method applicable to remote terminals, the method including the following step 501, as shown in Figure 5. In step 501, the network device acquires the first SRB and / or second SRB configured on the first link added by the remote terminal. Here, the first link is characterized as an NR direct connection link or a relay link. Here, if the remote terminal adds a first link, it obtains the first SRB and / or second SRB configured on the added first link by the network equipment. Here, the first SRB includes Split SRB1, and the second SRB includes 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 remote terminal will obtain Split SRB1 and / or Split SRB2 configured on the NR direct connection link to which the network device was added. For example, if a remote terminal first accesses network equipment via a direct NR connection link and then adds a relay link, the remote terminal will obtain Split SRB1 and / or Split SRB2 configured on the relay link to which the network equipment was added. In a selective embodiment, the method further includes: This includes transmitting correlated signaling by preferentially utilizing correlated SRBs on the primary path. In this case, if network devices constitute a primary and secondary path, the remote terminal will preferentially use the correlated SRB on the primary path to transmit correlated signaling such as RRC signaling and NAS signaling.

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

[0051] The embodiments of this disclosure will be described below in more detail, incorporating specific application scenarios. In an application scenario where a remote terminal first accesses network equipment via a relay terminal, and then an NR direct connection link is added, the link configuration method is as follows: In step 1, the network equipment configures the first SRB and / or second SRB on the additional NR direct connection link of the remote terminal. In this case, if the remote terminal first accesses the network equipment via the relay terminal and then adds an NR direct connection link, the network equipment will add and activate Split SRB1 and / or Split SRB2 on the NR direct connection link added by the remote terminal. In a selective embodiment, the network equipment can further deactivate SRB1 and / or SRB2 on the relay link, or maintain SRB1 and / or SRB2 on the relay link in an activated state. If the network device deactivates SRB1 and / or SRB2 on the relay link, the network device and the remote terminal will transmit correlation signaling using only the already activated SRBs on the NR direct connection link.

[0052] If the network equipment maintains SRB1 and / or SRB2 on the relay link in an active state, the network equipment and the remote terminal transmit correlated signaling using the already activated SRBs on the NR direct connection link and the relay link. In a selective embodiment, the method further includes: The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, The network device activates SRB1 and / or SRB2 on the relay link if one of the following conditions is met: the relay link is reconfigured as the primary path, or...

[0053] In a selective embodiment, the method further includes: The relay link will be deleted or deactivated, RLF occurs at the relay terminal, RLF occurs on the PC5 link, If one of the following conditions is met, 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 a selective embodiment, the method further includes: When an NR direct connection link is added or activated by a remote terminal, the network equipment configures the NR direct connection link as the primary path and the relay link as the secondary path. In a selective embodiment, where network devices constitute a primary path and a secondary path, the method further includes: Network equipment deactivates correlated SRBs on secondary paths, or This includes the network equipment maintaining the correlated SRB on the primary path and the correlated SRB on the secondary path in an activated state. In step 2, the remote terminal acquires the first SRB and / or second SRB configured on the NR direct connection link to which the network equipment has been added. Here, assuming that network devices constitute a primary and secondary path, the remote terminal preferentially uses the SRB on the primary path to transmit correlation signaling. In an application scenario where a remote terminal first accesses network equipment via a direct NR connection link, and then an intermediate link is added, the link configuration method is as follows: In step 1, the network equipment configures the first SRB and / or second SRB on the relay link added by the remote terminal. In this case, if the remote terminal first accesses the network equipment via a direct NR connection link, and then adds a relay link, the network equipment will configure the first SRB and / or second SRB on the relay link added by the remote terminal. Add a Split SRB1 on the relay link added by the remote terminal, and configure the Split SRB1 to be inactive. Add a Split SRB2 on the relay link added to the remote terminal, and configure the Split SRB2 to be inactive. Add and activate Split SRB1 on the relay link added to the remote terminal, This includes at least one of the following: adding and activating Split SRB2 on the relay link added by the remote terminal. In a selective embodiment, the method further includes: During the activation of the NR direct connection link, the network equipment includes maintaining SRB1 and / or SRB2 on the NR direct connection link in an activated state.

[0055] In a selective embodiment, the method further includes: (1) The NR direct connection link will be deleted or deactivated, (2) RLF occurs in the NR direct connection link, (3) Reconfiguring the relay link as the primary path; if one of the above 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. Here, if the remote terminal first accesses the network equipment via the NR direct connection link, and then adds a relay link, and if any one of the above conditions (1) to (3) is met, the network equipment reconfigures Split SRB1 on the relay link as SRB1, and / or Split SRB2 on the relay link as SRB2. If Split SRB1 on the relay link is inactive, the network equipment will first activate Split SRB1 on the relay link, and then reconfigure Split SRB1 on the relay link as SRB1. If Split SRB2 on the relay link is inactive, the network equipment will first activate Split SRB2 on the relay link, and then reconfigure Split SRB2 on the relay link as SRB2.

[0056] In a selective embodiment, the method further includes: When a relay link is added or activated by a remote terminal, the network equipment configures the relay link as the primary path and the NR direct connection link as the secondary path. In a selective embodiment, where network devices constitute a primary path and a secondary path, the method further includes: Network equipment deactivates correlated SRBs on secondary paths, or This includes the network equipment maintaining the correlated SRB on the primary path and the correlated SRB on the secondary path in an activated state. In step 2, the remote terminal obtains the first SRB and / or second SRB configured on the relay link to which the network equipment has been added. Here, assuming that network devices constitute a primary and secondary path, the remote terminal preferentially uses the SRB on the primary path to transmit correlation signaling.

[0057] According to the link configuration method, apparatus, remote terminal, network equipment, and storage medium of the embodiments of this 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 is characterized as an NR direct connection link or a relay link, and the remote terminal acquires the first SRB and / or second SRB configured by the network equipment on the first link added by the remote terminal. In this way, since the first SRB and / or second SRB are configured on the first link added by the remote terminal without being located on the initially established path between the remote terminal and the network equipment, the first SRB and / or second SRB will not become unavailable even if a failure occurs in the initially established path, thus 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 network equipment, which includes a first configuration unit 61, as shown in Figure 6. The first configuration unit 61 is used to configure a first SRB and / or a second SRB on an additional first link of a remote terminal, where the first link is characterized as an NR direct connection link or a relay link.

[0059] In a selective embodiment, the first configuration unit 61 is specifically used to add and activate Split SRB1 and / or Split SRB2 on an additional NR direct connection link of a remote terminal. In an optional embodiment, the apparatus further includes a second component unit. The second configuration unit deactivates SRB1 and / or SRB2 on the relay link, or It is used to maintain SRB1 and / or SRB2 in an activated state on the relay link.

[0060] In a selective embodiment, the first component unit 61 is specifically: Add a Split SRB1 on the relay link added by the remote terminal, and configure the Split SRB1 to be inactive. Add a Split SRB2 on the relay link added to the remote terminal, and configure the Split SRB2 to be inactive. Add and activate Split SRB1 on the relay link added to the remote terminal, It is used to perform at least one of the following actions: adding and activating Split SRB2 on the relay link added by the remote terminal.

[0061] In an optional embodiment, the apparatus further includes a third component unit. The third component unit is used to maintain the SRB1 and / or SRB2 on the NR direct connection link in an activated state during the activation of the NR direct connection link. In an optional embodiment, the apparatus further includes a fourth component unit. The fourth component unit is, The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, It is used to activate SRB1 and / or SRB2 on the relay link if one of the following conditions is met: the relay link is to be reconfigured as the primary path, or...

[0062] In a selective embodiment, the apparatus further includes a fifth component unit. The fifth component unit is, The relay link will be deleted or deactivated, RLF occurs at the relay terminal, RLF occurs on the PC5 link, It is used to reconfigure Split SRB1 on an NR direct connection link as SRB1 and / or to reconfigure Split SRB2 on an NR direct connection link as SRB2 if one of the following conditions is met: reconfiguring the NR direct connection link as the primary path, and / or.

[0063] In a selective embodiment, the apparatus further includes a fifth component unit. The fifth component unit is, The NR direct connection link is added by the remote terminal, The relay link will be deleted or deactivated, A wireless link failure (RLF) occurs in the air interface of the relay terminal, An SL failure occurs between the relay terminal and the remote terminal, It is used to reconfigure Split SRB1 on an NR direct connection link as SRB1 and / or to reconfigure Split SRB2 on an NR direct connection link as SRB2 if one of the following conditions is met: reconfiguring the NR direct connection link as the primary path, and / or.

[0064] In a selective embodiment, the apparatus further includes a sixth component unit. The sixth component unit is, The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, It is used to reconfigure Split SRB1 on a relay link as SRB1 and / or Split SRB2 on a relay link as SRB2 if one of the following conditions is met: the relay link is to be reconfigured as the primary path.

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

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

[0067] In a selective embodiment, the apparatus further includes a ninth component unit. The ninth component unit deactivates the correlated SRB on the secondary path, or It is used to maintain the correlated SRB on the primary pathway and the correlated SRB on the secondary pathway in an activated state. In actual application, the first, second, third, fourth, fifth, sixth, seventh, eighth, and ninth component units can be realized by a combination of a processor and a communication interface within the link configuration device.

[0068] In the above-described example of the link configuration device performing link configuration, only the division of each program module was given as an example. However, in actual applications, the above processes can be assigned to different program modules as needed and completed accordingly. In other words, 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 above-described example of the link configuration device and the example of the network equipment-side link configuration method belong to the same concept, and the specific implementation process should be referred to in detail in the example of the method, and will not be explained further 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 provided at a remote terminal, and as shown in Figure 7, the device includes an acquisition unit 71. The acquisition unit 71 is used to acquire a first SRB and / or a second SRB configured by the network equipment 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 a selective embodiment, the apparatus further includes a transmission unit. The aforementioned transmission unit is used to transmit correlation signaling by preferentially utilizing the correlation SRB on the primary path. In actual application, the acquisition unit 71 and the transmission unit can be realized by a combination of a processor and a communication interface within the link configuration device.

[0071] In the above embodiment, when describing the link configuration device, only the division of each program module was given as an example. However, in actual applications, the above processes can be assigned to different program modules as needed and completed accordingly. In other words, 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 above embodiment of the link configuration device 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 explained further here.

[0072] Based on the hardware implementation of the above program module, in order to implement the network device-side method of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a network device, as shown in Figure 8, the network device 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 one or more technical solutions on the network device side when executing a computer program. The computer program 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 an NR (New Radio) direct connection link or relay link.

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

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

[0075] In a selective embodiment, the first processor 802 specifically, Add a Split SRB1 on the relay link added by the remote terminal, and configure the Split SRB1 to be inactive. Add a Split SRB2 on the relay link added to the remote terminal, and configure the Split SRB2 to be inactive. Add and activate Split SRB1 on the relay link added to the remote terminal, It is used to perform at least one of the following actions: adding and activating Split SRB2 on the relay link added by the remote terminal.

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

[0077] In a selective embodiment, the first processor 802 further, The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, It is used to activate SRB1 and / or SRB2 on the relay link if one of the following conditions is met: the relay link is to be reconfigured as the primary path, or...

[0078] In a selective embodiment, the first processor 802 further, The relay link will be deleted or deactivated, RLF occurs at the relay terminal, RLF occurs on the PC5 link, It is used to reconfigure Split SRB1 on an NR direct connection link as SRB1 and / or to reconfigure Split SRB2 on an NR direct connection link as SRB2 if one of the following conditions is met: reconfiguring the NR direct connection link as the primary path, and / or.

[0079] In a selective embodiment, the first processor 802 further, The NR direct connection link is added by the remote terminal, The relay link will be deleted or deactivated, A wireless link failure (RLF) occurs in the air interface of the relay terminal, An SL failure occurs between the relay terminal and the remote terminal, It is used to reconfigure Split SRB1 on an NR direct connection link as SRB1 and / or to reconfigure Split SRB2 on an NR direct connection link as SRB2 if one of the following conditions is met: reconfiguring the NR direct connection link as the primary path, and / or.

[0080] In a selective embodiment, the first processor 802 further, The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, It is used to reconfigure Split SRB1 on a relay link as SRB1 and / or Split SRB2 on a relay link as SRB2 if one of the following conditions is met: the relay link is to be reconfigured as the primary path.

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

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

[0083] In an optional embodiment, the first processor 802 is further used to deactivate the correlated SRB on the secondary path, or to maintain 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 method described above. Of course, in actual application, each component in the network device 8 is connected via the bus system 804. It is understood that the bus system 804 is used to enable connection communication between these components. In addition to the data bus, the bus system 804 further includes a power bus, a control bus, and a status signal bus. However, for clarity, in Figure 8, the various buses are denoted as the bus system 804.

[0085] In embodiments of this disclosure, the first memory 803 is used to store various types of data to support the operation of the network device 8. Examples of this data include any computer program operated on the network device 8.

[0086] The methods relating to the embodiments of the present disclosure may be applied to or implemented by a first processor 802. The first processor 802 may be an integrated circuit chip having signal processing capability. In the implementation process, each step of the above method may be executed by hardware integrated logic circuits or software-based instructions in the first processor 802. The first processor 802 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The first processor 802 can implement and 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 conventional processor, etc. The method steps disclosed in the embodiments of the present disclosure may be combined and directly implemented as completion by a hardware decoding processor, or as completion by 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 a first memory 803, and the first processor 802 reads the information in the first memory 803 and combines it with its hardware to complete the steps of the above method.

[0087] In the exemplary embodiment, the network device 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, microcontroller units (MCUs), microprocessors, or other electronic elements used to perform the above method.

[0088] Based on the hardware implementation of the above program module, in order to implement the remote terminal method of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a remote terminal, which, as shown in Figure 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 execute one or more technical solutions on the remote terminal side when executing a computer program. The computer program is stored in the second memory 903. Specifically, the second processor 902 is used to acquire the first SRB and / or second SRB configured by the network equipment on the additional first link of the remote terminal, where the first link is characterized as an NR direct connection link or a relay link. In a selective embodiment, the second processor 902 is further used to transmit correlation signaling by preferentially utilizing the correlation SRB 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 method described above. Of course, in actual application, each component in the remote terminal 9 is connected via the bus system 904. It is understood that the bus system 904 is used to enable connection communication between these components. In addition to the data bus, the bus system 904 further includes a power bus, a control bus, and a status signal bus. However, for clarity, in Figure 9, the various buses are denoted as the bus system 904.

[0089] In embodiments of this disclosure, the second memory 903 is used to store various types of data to support the operation of the remote terminal 9. Examples of this data include any computer program operated on the remote terminal 9.

[0090] The methods relating to the embodiments of the present disclosure may be applied to or implemented by a second processor 902. The second processor 902 may be an integrated circuit chip having signal processing capabilities. In the implementation process, each step of the method may be executed by hardware integrated logic circuits or software-based instructions 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, a discrete hardware component, etc. The second processor 902 can implement and 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 conventional processor, etc. The method steps disclosed in the embodiments of the present disclosure can be combined and directly implemented as completion by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in a second memory 903, and the second processor 902 reads information in the second memory 903 and combines it with its hardware to complete the steps of the method.

[0091] In exemplary embodiments, 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 components used to carry out the above method.

[0092] It should be understood that the memories (first memory 803, second memory 903) in the embodiments of this disclosure may be volatile memory or non-volatile memory, and may include both volatile and non-volatile memory. Here, non-volatile 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), ferromagnetic 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. Many forms of RAM are available, although this is illustrative and not an exhaustive description.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). The memories described in the embodiments of this disclosure are intended to include, but are not limited to, these and any other suitable types of memory.

[0093] In exemplary embodiments, 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 in which a computer program is stored may be provided. The computer program can be executed by a first processor 802 of the network device 8 to complete the above steps of the network device side method. Another example is a second memory 803 in which a computer program is stored may be provided. The computer program can be executed by a second processor 802 of the remote terminal 9 to complete the above steps of the remote terminal side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, surface-mount memory, optical disk, or CD-ROM.

[0094] Note that terms such as "first," "second," etc., do not need to indicate a specific order or priority; they are simply used to distinguish similar objects. In this specification, the term "and / or" simply describes a relational relationship that describes related objects, meaning, for example, that there may be three relationships, A and / or B, which can represent A existing alone, A and B existing together, and B existing alone. Furthermore, in this specification, the term "at least one" means any combination of one or at least two of a plurality, meaning, for example, "including at least one of A, B and C" can 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 this disclosure may be combined in any way if there are no conflicts between them. The foregoing 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 applicable to network equipment, This includes configuring a first signaling radio bearer SRB and / or a second SRB on the first link added to the remote terminal, Here, the first link is characterized as an NR (New Radio) direct connection link or relay link, The first SRB includes Split SRB1, and the second SRB includes Split SRB2. If the remote terminal first accesses the network equipment via a relay terminal and then adds an NR direct connection link, the network equipment will configure the first SRB and / or the 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 between the remote terminal and the network equipment, and then adds a relay link, the network equipment will configure the first SRB and / or the second SRB on the relay link added by the remote terminal. Here, if the remote terminal first accesses the network device via the relay terminal, and then adds an NR direct connection link, then SRB1 and / or SRB2 exist on the relay link between the relay terminal and the network device, and the method further... A wireless link failure (RLF) occurs in the air interface of the relay terminal, An SL failure occurs between the relay terminal and the remote terminal, If one of the following is satisfied, the Split SRB1 on the NR direct connection link added by the remote terminal is reconfigured as SRB1, and / or the Split SRB2 on the NR direct connection link added by the remote terminal is reconfigured as SRB2, If the remote terminal first accesses the network device via an NR direct connection link between the remote terminal and the network device, and then adds a relay link, then SRB1 and / or SRB2 exist on the NR direct connection link between the remote terminal and the network device, and the method further... The NR direct connection link between the remote terminal and the network device is deleted or deactivated. RLF occurs in the NR direct connection link between the remote terminal and the network device, A link configuration method that includes, if one of the following is satisfied, reconfiguring the relay link added by the remote terminal as the primary path, reconfiguring the Split SRB1 on the relay link added by the remote terminal as SRB1, and / or reconfiguring the Split SRB2 on the relay link added by the remote terminal as SRB2.

2. When the remote terminal first accesses the network equipment via a relay terminal and then adds an NR direct connection link, the first SRB and / or second SRB are configured on the first link added by the remote terminal. The method according to claim 1, comprising adding and activating the Split SRB1 on the additional NR direct connection link of the remote terminal, and / or adding and activating the Split SRB2 on the additional NR direct connection link of the remote terminal.

3. The above method further, Deactivating the active SRB1 and / or SRB2 on the relay link between the relay terminal and the network device, or The method according to claim 2, comprising maintaining the activated SRB1 and / or SRB2 on the relay link between the relay terminal and the network device in an activated state.

4. When the remote terminal first accesses the network equipment via an NR direct connection link between the remote terminal and the network equipment, and then adds a relay link, the first SRB and / or second SRB are configured on the first link added by the remote terminal. The Split SRB1 is added on the relay link added by the remote terminal, and the Split SRB1 is configured to be inactive. The Split SRB2 is added on the relay link added by the remote terminal, and the Split SRB2 is configured to be inactive. The Split SRB1 is added and activated on the relay link added by the remote terminal, The method according to claim 1, comprising at least one of the following: adding and activating the Split SRB2 on the relay link added to the remote terminal.

5. The above method further, The method according to claim 4, comprising maintaining SRB1 and / or SRB2 on the NR direct connection link between the remote terminal and the network device in an activated state while the NR direct connection link between the remote terminal and the network device is being activated.

6. If the remote terminal first accesses the network equipment via a relay terminal and then adds an NR direct connection link, the method further: The NR direct connection link added to the remote terminal is deleted or deactivated. A wireless link failure (RLF) occurs in the NR direct connection link added to the remote terminal. The method according to claim 1, comprising activating SRB1 and / or SRB2 on the relay link between the relay terminal and the network device if one of the following conditions is met: reconfiguring the relay link between the relay terminal and the network device as the primary path.

7. The above method further, The method according to claim 1, further comprising configuring the NR direct connection link added or activated by the remote terminal as the primary path and the relay link between the relay terminal and the network device as the secondary path when the NR direct connection link is added or activated by the remote terminal.

8. The above method further, The method according to claim 1, further comprising configuring the relay link added or activated by the remote terminal as the primary path and the NR direct connection link between the remote terminal and the network equipment as the secondary path when the relay link is added or activated by the remote terminal.

9. A link configuration method applicable to a communication system including network equipment and a remote terminal, The network equipment constitutes a first signaling radio bearer SRB and / or a second SRB on the first link added by the remote terminal, The remote terminal includes acquiring the first SRB and / or the second SRB configured by the network equipment on the first link added by the remote terminal, Here, the first link is characterized as an NR direct connection link or a relay link, The first SRB includes Split SRB1, and the second SRB includes Split SRB2. If the remote terminal first accesses the network equipment via a relay terminal and then adds an NR direct connection link, the network equipment will configure the first SRB and / or the 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 between the remote terminal and the network equipment, and then adds a relay link, the network equipment will configure the first SRB and / or the second SRB on the relay link added by the remote terminal. Here, if the remote terminal first accesses the network device via the relay terminal, and then adds an NR direct connection link, then SRB1 and / or SRB2 exist on the relay link between the relay terminal and the network device, and the method further... A wireless link failure (RLF) occurs in the air interface of the relay terminal, An SL failure occurs between the relay terminal and the remote terminal, If one of the following conditions is met, the network equipment includes reconfiguring the Split SRB1 on the NR direct connection link added by the remote terminal as SRB1, and / or reconfiguring the Split SRB2 on the NR direct connection link added by the remote terminal as SRB2, If the remote terminal first accesses the network device via an NR direct connection link between the remote terminal and the network device, and then adds a relay link, then SRB1 and / or SRB2 exist on the NR direct connection link between the remote terminal and the network device, and the method further... The NR direct connection link will be deleted or deactivated, RLF occurs in the NR direct connection link, A link configuration method that includes, when one of the following is satisfied, the network equipment reconfigures the Split SRB1 on the relay link added by the remote terminal as SRB1, and / or reconfigures the Split SRB2 on the relay link added by the remote terminal as SRB2.

10. A network device comprising a first processor and a first memory for storing a computer program executable on the first processor, Herein, the first processor is a network device used to perform the steps of the method according to any one of claims 1 to 8 when executing the computer program.

11. A remote terminal comprising a second processor and memory for storing computer programs executable on the second processor, Herein, the second processor is used to perform the steps of the method according to claim 9 when executing the computer program, in a communication system.

12. A storage medium in which computer programs are stored, A storage medium that enables the steps of the method according to any one of claims 1 to 8 when the computer program is executed by a processor.

13. A storage medium in which a computer program is stored, A storage medium that enables the steps of the method according to claim 9 when the computer program is executed by a processor.

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