CN116156673A - Link configuration method and equipment - Google Patents

Abstract

The invention provides a link configuration method and related equipment, and relates to the field of communication, wherein the link configuration method comprises the following steps: transmitting packet data convergence protocol PDCP configuration information to a terminal; the PDCP configuration information includes link indication information for indicating that a PDCP entity is connected to at least two radio link control RLC entities including at least one PC5RLC entity. In the embodiment of the invention, the PDCP entity is indicated to be connected with at least two Radio Link Control (RLC) entities including the PC5RLC entity in the PDCP configuration information, and in the PC5 scene, the PDCP entity can carry out data transmission through the at least two RLC entities, so that the transmission efficiency or the transmission reliability of communication data can be improved.

Description

Link configuration method and equipment

technical field

The present invention relates to the field of communication technologies, in particular to a link configuration method and equipment.

Background technique

Sidelink relay SL RELAY (Sidelink RELAY) means that a mobile terminal (or also called a remote terminal, remote UE) establishes a PC5 (ProximityService After communication (near-end communication) is connected, the terminal (relay UE) is used as a relay to access the access network.

In the existing SL RELAY technology, the remote UE will choose to access a single relay UE (establish a PC5 link) or access the RAN through an air interface (establish a uu link) based on certain decision conditions. In this single link connection mode, Data transmission is less efficient or less reliable.

Contents of the invention

Embodiments of the present invention provide a link configuration method and related equipment to solve the problem of low efficiency or reliability of data transmission in the existing SL RELAY technology.

In order to solve the problems of the technologies described above, the present invention is achieved in that:

In the first aspect, an embodiment of the present invention provides a link configuration method, which is applied to a network device, and the method includes:

Send packet data convergence protocol PDCP configuration information to the terminal;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, in the case where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In a second aspect, an embodiment of the present invention provides a link configuration method, which is applied to a terminal, and the method includes:

Receive packet data convergence protocol PDCP configuration information sent by the network device;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to indicate that the PDCP entity is connected to at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity;

Establishing a multi-connection according to the PDCP configuration information, wherein a PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the method also includes:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In a third aspect, an embodiment of the present invention provides a network device, including:

A sending module, configured to send packet data convergence protocol PDCP configuration information to the terminal;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity. Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In a fourth aspect, an embodiment of the present invention provides a network device, including a transceiver and a processor, and the transceiver is configured to send packet data convergence protocol PDCP configuration information to a terminal;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In a fifth aspect, an embodiment of the present invention provides a terminal, including:

The receiving module is configured to receive packet data convergence protocol PDCP configuration information sent by the network device; wherein the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, the at least two RLC entities comprising at least one PC5 RLC entity;

A connection module, configured to establish a multi-connection according to the PDCP configuration information; wherein the PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the terminal is also used for:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In a sixth aspect, an embodiment of the present invention provides a terminal, including a transceiver and a processor,

The transceiver is used for receiving packet data convergence protocol PDCP configuration information sent by the network device; wherein the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two wireless links a road control RLC entity, the at least two RLC entities comprising at least one PC5 RLC entity;

The processor is configured to establish a multi-connection according to the PDCP configuration information; wherein a PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the terminal is also used for:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In the seventh aspect, the embodiment of the present invention provides a network device, including: a processor, a memory, and a program stored in the memory and operable on the processor, and the program is implemented when executed by the processor. The steps of the link configuration method described in the first aspect.

In an eighth aspect, an embodiment of the present invention provides a terminal, including: a processor, a memory, and a program that is stored in the memory and can run on the processor, and when the program is executed by the processor, implements the following: The steps of the link configuration method described in the second aspect.

In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program described in the first aspect or the second aspect is implemented. The steps of the link configuration method.

In the embodiment of the present invention, packet data convergence protocol PDCP configuration information is sent to the terminal; wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, the at least two RLC entities include at least one PC5 RLC entity. By instructing the PDCP entity in the PDCP configuration information to connect to at least two radio link control RLC entities including the PC5 RLC entity, in the PC5 scenario, the PDCP entity can perform data transmission through at least two RLC entities, which can improve communication data transmission efficiency or transmission reliability.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a flowchart of a link configuration method provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a terminal and a network framework provided by an embodiment of the present invention;

FIG. 3 is a flowchart of another link configuration method provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a network device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another network device provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of another terminal provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the embodiment of the present invention, a link configuration method is proposed to solve the problem of low efficiency or reliability of data transmission in the existing SL RELAY technology.

Referring to FIG. 1, FIG. 1 is a flow chart of a link configuration method provided by an embodiment of the present invention, which is used for a network device. As shown in FIG. 1, the method includes the following steps:

Step 101, sending packet data convergence protocol PDCP configuration information to the terminal;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

It can be understood that the PDCP configuration information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to instruct the PDCP entity to connect the uu interface radio link control uu RLC entity and at least one PC5 radio link control PC5 RLC entity; Alternatively, the PDCP configuration information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to at least two PC5 RLC entities.

Wherein, the uu link means that the UE accesses the RAN through an air interface, and is specifically established by connecting the uu RLC entity through the PDCP entity. The PC5 link means that after a UE (referred to as a remote terminal, remote UE) establishes a connection with another UE (referred to as a relay terminal, relay UE or UE-to Network Relay UE), the terminal (relay UE) ) is a relay access network, which is specifically established by connecting at least a PC5 RLC entity through a PDCP entity. In the PC5 link, single or multiple bearers of the Remote UE communicate with the access network through the Relay UE respectively.

As shown in Figure 2, for L2 RELAY, on the remote UE, there are uu-SDAP (Service Data Adaptation Protocol, business data adaptation protocol) and uu-PDCP (Packet Data Convergence Protocol, packet data convergence protocol) that are equivalent to the network ) entity, RLC (Radio Link Control, radio link control), MAC (Media Access Control, media access control), and PHY (Physical Layer, physical layer) in the remote UE are PC5 entities. On the relay UE, there are PC5 RLC, MAC, and PHY entities corresponding to the remote UE, and uu RLC for carrying the LCH (Logical Channel, logical channel) corresponding to the PC5 RLC.

In the prior art, the remote UE only selects one of accessing the relay UE or accessing the RAN through the air interface based on a certain decision condition, and only one relay UE is selected for connection when selecting to access the relay UE. For services with high reliability requirements, such as URLLC (Ultra-Reliable and Low Latency Communications, low-latency and high-reliability connections), it is difficult to guarantee the transmission reliability and delay requirements of this single connection method.

Here, it should be understood that, in the method of the specific embodiment of the present invention, the packet data convergence protocol PDCP configuration information is sent to the terminal; wherein, the PDCP configuration information includes link indication information, and the link indication information is used to indicate The PDCP entity is connected to at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity, so that the UE (remote UE) can establish a multi-port connection between PC5 and uu according to the PDCP configuration information or two and More than 2 PC5 multi-connection methods.

Among them, instructing the PDCP entity to connect the uu interface radio link control uu RLC entity and at least one PC5 radio link control PC5 RLC entity may be that RRC configures the PDCP entity to connect uu RLC and one or more PC5 RLCs, which can enable the UE to implement PC5 Multi-port connection with uu, in this connection mode, uu connection itself can be single connection or multi-connection, and PC5 connection can also be single or multiple.

Indicates that the PDCP entity is connected to at least two PC5 RLC entities. It may be that the RRC configures the PDCP entity to connect to two or more PC5 RLCs, so that the remote UE can be connected to multiple relay UEs at the same time.

Optionally, the network device supports multiple connections (supports multiple RLCs) when the DRB (Data Radio Bearer, data radio bearer) corresponding to the PDCP of the remote UE is configured as a DRB of a sidelink relay that supports multiple connections (supports multiple RLCs) When the uu and the DRB of the sidelinkrelay are used, step 101 is performed. The network device can obtain the DRB configuration corresponding to the PDCP of the remote UE through the report of the remote UE.

Optionally, the PC5 RLC indication information is used to indicate RLC entity information and LCH information of the relay UE connected to the PDCP entity, specifically, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

It can be understood that, if the RLC entities of the PDCP connection are PC5 RLC and uu RLC entities, the PDCP configuration information carries the corresponding uu RLC and PC5 RLC indication information, which is used to indicate the RLC entity information and LCH information of the PDCP connection; If the RLCs of the PDCP connection are all PC5 RLCs, the uu RLC indication information is not carried in the PDCP configuration information.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

It can be understood that, when the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, the PDCP configuration information is also used to configure the uu link as the main path;

Alternatively, when the link indication information includes at least two PC5 RLC indication information, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the at least two One of the two PC5 links.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

It can be understood that the PDCP configuration information carries corresponding uu RLC and PC5 RLC indication information at the same time, and uu RLC is configured as the main path; when PDCP is configured to only carry PC5 RLC indication information, configure the RLC ownership of the RELAY connected to PC5 RLC The primary cell group (primary cell group, MCG) PC5 RLC primary path; if there are multiple PC5 RLCs connected to the RELAY RLC belonging to the primary cell group PC5 RLC primary path, select one of them, which can be based on the preset Select one of them according to the conditions, or randomly select one of them; if there is no PC5 RLC main path of the PC5 RLC connected to the RELAY belonging to the primary cell group, the network is based on the relay load of the connection and/or the uu link of the relay In this case, select the PC5 RLC corresponding to the better relay as the main path.

The PDCP configuration information includes the indication information of the uu link and the indication information of the PC5 link or the PDCP configuration information includes the indication information of at least two PC5 links, that is, the PDCP configures multiple logical channels, then the PDCP can be configured as an entity Support duplication function or separate split function.

The PDCP configuration information is used to configure the main path, so that the terminal can determine the main path according to the PDCP configuration information. When the PDCP entity distribution or replication function is disabled, the terminal can use the main path in the multi-connection for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Data transmission efficiency can be improved through the shunting method.

Wherein, while the PDCP configuration includes the bearer separation threshold, the PDCP configuration may also be used to indicate the relay UE identification information and LCH identification information corresponding to the second offload. Based on the PDCP configuration, when the amount of uplink data is greater than or equal to the bearer separation threshold, the terminal determines the target relay UE and the target LCH according to the UE identification information and LCH identification information corresponding to the second offload, and PDCP uses the target relay UE Perform uplink data offloading with the target LCH.

It can be understood that, in the undistributed state, the terminal can use the main path in the multi-connection to perform data transmission. In the case of multi-connection including uu connection, the uu connection is adopted in the undistributed state, and the PDCP configuration specifically indicates to determine the PC5 link used for distributing when instructing distributing, that is, to determine the target relay UE for distributing and Target LCH.

Optionally, when the bearer separation threshold is empty, it indicates that uplink offloading is not supported.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

It can be understood that, when the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Alternatively, when the link indication information includes at least two PC5 RLC indication information, the bearer duplication indication is used to indicate at least two PC5 link bearer duplications.

Transmission reliability can be improved through bearer replication.

In the case where the PDCP configuration information includes uu link indication information and PC5 link indication information, the bearer duplication indication indicates duplication of corresponding uu LCH information, relay UE identification information, and relay LCH identification information. In a case where the PDCP configuration information includes indication information of at least two PC5 links, the bearer duplication indication duplicates the relay UE identification information and logical channel LCH identification information of the PC5 links. For example, if there are two PC5 link duplications, respectively indicate the relay identification information and the LCH identification information of the two PC5 links.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling (RRCReconfiguration).

For example, the Remote UE selects the access air interface and establishes a PC5 connection with relay1 through a certain decision criterion. The RRC reconfiguration signaling uses "uu RLC SEQUENCE" to configure uu RLC, and at the same time adds PC5 RLC configuration, including:

Among them, in the above signaling, "PC5 RLC SEQUENCE" specifically configures the relay UE identification information and logical channel LCH identification information to which PC5 RLC belongs, and the "uu RLC SEQUENCE" part is uu RLC configuration, specifically including the primary path configuration "primaryPath", that is Based on the "primaryPath" signaling, the uu link is configured as a primary path in case the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity.

In the embodiment of the present invention, packet data convergence protocol PDCP configuration information is sent to the terminal; wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, the at least two RLC entities include at least one PC5 RLC entity. In the embodiment of the present invention, by indicating in the PDCP configuration information that the PDCP entity is connected to at least two radio link control RLC entities including the PC5 RLC entity, in the PC5 scenario, the PDCP entity can perform data transmission through at least two RLC entities, The transmission efficiency or transmission reliability of communication data can be improved.

Referring to FIG. 3, FIG. 3 is a flowchart of another link configuration method provided by an embodiment of the present invention, which is used for a terminal. As shown in FIG. 3, the method includes the following steps:

Step 301, receiving packet data convergence protocol PDCP configuration information sent by the network device;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Step 302: Establish a multi-connection according to the PDCP configuration information; wherein the PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

It can be understood that the PDCP entity in the multi-connection is connected to the uu RLC entity and the PC5 RLC entity, or the PDCP entity in the multi-connection is connected to at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the method also includes:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

It should be noted that this embodiment is an implementation manner of a network device corresponding to the embodiment shown in FIG. 1 , and its specific implementation manner can refer to relevant descriptions in the embodiment shown in FIG. 1 . To avoid repeated descriptions, This embodiment will not be described in detail.

In the embodiment of the present invention, the packet data convergence protocol PDCP configuration information sent by the network device is received; wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two wireless links Controlling the RLC entity, the at least two RLC entities include at least one PC5 RLC entity; establishing multiple connections according to the PDCP configuration information, wherein the PDCP entity in the multiple connections connects the at least two RLC entities, according to the PDCP configuration The information realizes that the PDCP entity is connected to at least two radio link control RLC entities including the PC5 RLC entity. In the PC5 scenario, the PDCP entity can transmit data through at least two RLC entities, which can improve the transmission efficiency or transmission reliability of communication data sex.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a network device provided by an embodiment of the present invention. As shown in FIG. 4, the network device 400 includes:

A sending module 401, configured to send packet data convergence protocol PDCP configuration information to the terminal;

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

It should be noted that the network device provided by the embodiment of the present invention is a device capable of executing the above-mentioned link configuration method in Figure 1, then all the implementation methods in the above-mentioned link configuration method embodiment are applicable to the above-mentioned network device, and can achieve the same or similar beneficial effects.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the present invention. As shown in FIG. 5, the terminal 500 includes:

The receiving module 501 is configured to receive packet data convergence protocol PDCP configuration information sent by the network device; wherein the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two wireless links controlling an RLC entity, the at least two RLC entities comprising at least one PC5 RLC entity;

The connection module 502 is configured to establish a multi-connection according to the PDCP configuration information; wherein the PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the terminal is also used for:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

It should be noted that the terminal provided by the embodiment of the present invention is a device capable of executing the above-mentioned link configuration method in FIG. or similar beneficial effects.

Specifically, referring to FIG. 6 , the embodiment of the present invention also provides a network device, including a bus 601 , a transceiver 602 , an antenna 603 , a bus interface 604 , a processor 605 and a memory 606 .

The transceiver 602 is configured to send packet data convergence protocol PDCP configuration information to the terminal.

Wherein, the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two radio link control RLC entities, and the at least two RLC entities include at least one PC5 RLC entity.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the PDCP configuration includes a bearer separation threshold, and the bearer separation threshold is used to enable the terminal to perform uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In FIG. 6, the bus architecture (represented by bus 601), bus 601 may include any number of interconnected buses and bridges, bus 601 will include one or more processors represented by processor 605 and memory represented by memory 606 The various circuits are linked together. The bus 601 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 604 provides an interface between the bus 601 and the transceiver 602 . Transceiver 602 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 605 is transmitted on the wireless medium through the antenna 603 , further, the antenna 603 also receives the data and transmits the data to the processor 605 .

The processor 605 is responsible for managing the bus 601 and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, the memory 606 may be used to store data used by the processor 605 when performing operations.

Optionally, the processor 605 may be a CPU, ASIC, FPGA or CPLD.

It should be noted that the network device provided by the embodiment of the present invention is a device capable of executing the above-mentioned link configuration method in Figure 1, then all the implementation methods in the above-mentioned link configuration method embodiment are applicable to the above-mentioned network device, and can achieve the same or similar beneficial effects.

Specifically, referring to FIG. 7 , the embodiment of the present invention also provides a terminal device, including a bus 701 , a transceiver 702 , an antenna 703 , a bus interface 704 , a processor 705 and a memory 706 .

The transceiver 702 is configured to receive packet data convergence protocol PDCP configuration information sent by the network device; wherein the PDCP configuration information includes link indication information, and the link indication information is used to instruct the PDCP entity to connect at least two wireless links controlling RLC entities, the at least two RLC entities comprising at least one PC5 RLC entity;

Further, the processor 705 is configured to establish a multi-connection according to the PDCP configuration information; wherein the PDCP entity in the multi-connection is connected to the at least two RLC entities.

Optionally, the at least two RLC entities include uu RLC entities and at least one PC5 RLC entity; or

The at least two RLC entities include at least two PC5 RLC entities.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information, which are respectively used to indicate PDCP The entity connects the uu RLC entity and at least one PC5 RLC entity;

Alternatively, when the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information, which is used to indicate that the PDCP entity is connected to the at least two PC5 RLC entities.

Optionally, the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

Optionally, the PDCP configuration information is configured through RRC reconfiguration signaling.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is also used to configure the uu link as the main path, wherein the uu link passes The PDCP entity is connected to the uuRLC entity to establish;

Or, when the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is also used to configure the first PC5 link as the main path, and the first PC5 link is the main path of the at least two PC5 RLC entities. One of the two PC5 links, wherein the at least two PC5 links are established by connecting at least two PC5 RLC entities through a PDCP entity.

Optionally, where there is a target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

In the case where there are multiple target PC5 links in the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

In the case that the at least two PC5 links do not have a target PC5 link, the first PC5 link is routed by the network device according to the load conditions of the relay UEs corresponding to the at least two PC5 links and/or The uu link status of each corresponding relay UE is determined;

Wherein, the RLC of the relay UE connected to the target PC5 link belongs to the primary cell group.

Optionally, the terminal is also used for:

In the case that the PDCP entity distribution or replication function is disabled, the main path in the multi-connection is used for data transmission.

Optionally, the PDCP configuration includes a bearer separation threshold, and the terminal performs uplink data offloading when the amount of uplink data is greater than or equal to the bearer separation threshold.

Optionally, the PDCP configuration further includes a bearer duplication indication.

Optionally, when the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is used to indicate uu link and PC5 link bearer duplication;

Or, in the case that the at least two RLC entities include at least two PC5 RLC entities, the bearer duplication indication is used to indicate bearer duplication of at least two PC5 links.

In FIG. 7, the bus architecture (represented by bus 701), bus 701 may include any number of interconnected buses and bridges, bus 701 will include one or more processors represented by processor 705 and memory represented by memory 706 The various circuits are linked together. The bus 701 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and thus will not be further described herein. The bus interface 704 provides an interface between the bus 701 and the transceiver 702 . Transceiver 702 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 705 is transmitted on the wireless medium through the antenna 703 , further, the antenna 703 also receives the data and transmits the data to the processor 705 .

The processor 705 is responsible for managing the bus 701 and general processing, and may also provide various functions including timing, peripheral interfacing, voltage regulation, power management, and other control functions. Instead, the memory 706 may be used to store data used by the processor 705 when performing operations.

Optionally, the processor 705 may be a CPU, ASIC, FPGA or CPLD.

It should be noted that the terminal provided by the embodiment of the present invention is a device capable of executing the above-mentioned link configuration method in FIG. or similar beneficial effects.

The embodiment of the present invention also provides a network device, including: a processor, a memory, and a program stored in the memory and operable on the processor. When the program is executed by the processor, the above diagram is realized. Each process of the embodiment of the link configuration method in 1 can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

An embodiment of the present invention also provides a terminal device, including: a processor, a memory, and a program stored on the memory and operable on the processor. When the program is executed by the processor, the above-mentioned Each process of the embodiment of the link configuration method in 2 can achieve the same technical effect. To avoid repetition, details are not repeated here.

An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each of the above-mentioned link configuration method embodiments in FIG. 1 or FIG. 2 is implemented. process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here. Wherein, the computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present invention.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, without departing from the gist of the present invention and the protection scope of the claims, many forms can also be made, all of which belong to the protection of the present invention.

Claims (28)

1. A link configuration method applied to a network device, the method comprising:

transmitting packet data convergence protocol PDCP configuration information to a terminal;

the PDCP configuration information includes link indication information for indicating that a PDCP entity is connected to at least two radio link control RLC entities including at least one PC5 RLC entity.

2. The method of claim 1, wherein the at least two RLC entities comprise a uu RLC entity and at least one PC5 RLC entity; or alternatively

The at least two RLC entities include at least two PC5 RLC entities.

3. The method of claim 2, wherein the step of determining the position of the substrate comprises,

in the case that the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information for respectively indicating the PDCP entity to connect the uu RLC entity and the at least one PC5 RLC entity;

Alternatively, in case that the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information for indicating that the PDCP entity connects the at least two PC5 RLC entities.

4. The method of claim 3, wherein the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

5. The method according to any of claims 1-4, wherein the PDCP configuration information is configured by RRC reconfiguration signaling.

6. The method according to any of claims 2-4, wherein, in case the at least two RLC entities comprise a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is further used to configure a uu link as a primary path, wherein the uu link is established by connecting the uu RLC entity through the PDCP entity;

or in the case that the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is further configured to configure a first PC5 link as a primary path, the first PC5 link being one of the at least two PC5 links, wherein the at least two PC5 links are established by connecting the at least two PC5 RLC entities through the PDCP entity.

7. The method of claim 6, wherein the step of providing the first layer comprises,

wherein, in the case that there is one target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

in the case where there are multiple target PC5 links for the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

when the at least two PC5 links do not have the target PC5 link, the first PC5 link is determined by the network equipment according to the load condition of each relay UE corresponding to the at least two PC5 links and/or the uu link condition of each corresponding relay UE;

wherein the RLC of the relay UE to which the target PC5 link is connected belongs to the primary cell group.

8. The method according to any of claims 1-4, wherein the PDCP configuration includes a bearer separation threshold for enabling a terminal to perform upstream data splitting if an upstream data amount is greater than or equal to the bearer separation threshold.

9. The method according to any of claims 2-4, wherein the PDCP configuration further comprises a bearer duplication indication.

10. The method of claim 9, wherein the step of determining the position of the substrate comprises,

In case the at least two RLC entities comprise a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is for indicating a uu link and a PC5 link bearer duplication;

alternatively, in case the at least two RLC entities comprise at least two PC5 RLC entities, the bearer duplication indication is used to indicate at least two PC5 link bearer duplication.

11. A link configuration method applied to a terminal, the method comprising:

receiving PDCP configuration information sent by network equipment;

the PDCP configuration information comprises link indication information, wherein the link indication information is used for indicating a PDCP entity to be connected with at least two wireless link control (RLC) entities, and the at least two RLC entities comprise at least one PC5 RLC entity;

and establishing multiple connections according to the PDCP configuration information, wherein the PDCP entities in the multiple connections are connected with the at least two RLC entities.

12. The method of claim 11, wherein the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity; or alternatively

The at least two RLC entities include at least two PC5 RLC entities.

13. The method of claim 12, wherein the step of determining the position of the probe is performed,

in the case that the at least two RLC entities include a uu RLC entity and at least one PC5 RLC entity, the link indication information includes uu RLC indication information and at least one PC5 RLC indication information for respectively indicating the PDCP entity to connect the uu RLC entity and the at least one PC5 RLC entity;

alternatively, in case that the at least two RLC entities include at least two PC5 RLC entities, the link indication information includes at least two PC5 RLC indication information for indicating that the PDCP entity connects the at least two PC5 RLC entities.

14. The method of claim 13, wherein the PC5 RLC indication information carries relay UE identification information and logical channel LCH identification information.

15. The method according to any of claims 11-14, wherein the PDCP configuration information is configured by RRC reconfiguration signaling.

16. The method according to any of claims 12-14, wherein, in case the at least two RLC entities comprise a uu RLC entity and at least one PC5 RLC entity, the PDCP configuration information is further used to configure a uu link as a primary path, wherein the uu link is established by connecting the uu RLC entity through the PDCP entity;

Or in the case that the at least two RLC entities include at least two PC5 RLC entities, the PDCP configuration information is further configured to configure a first PC5 link as a primary path, the first PC5 link being one of the at least two PC5 links, wherein the at least two PC5 links are established by connecting the at least two PC5 RLC entities through the PDCP entity.

17. The method of claim 16, wherein the step of determining the position of the probe comprises,

wherein, in the case that there is one target PC5 link in the at least two PC5 links, the first PC5 link is the target PC5 link;

in the case where there are multiple target PC5 links for the at least two PC5 links, the first PC5 link is one of the multiple target PC5 links;

when the at least two PC5 links do not have the target PC5 link, the first PC5 link is determined by the network equipment according to the load condition of each relay UE corresponding to the at least two PC5 links and/or the uu link condition of each corresponding relay UE;

wherein the RLC of the relay UE to which the target PC5 link is connected belongs to the primary cell group.

18. The method of claim 16, wherein the method further comprises:

In case that the PDCP entity is disabled for the split or copy function, data transmission is performed using the main path in the multi-connection.

19. The method according to any of claims 11-14, wherein the PDCP configuration includes a bearer separation threshold, the terminal performing upstream data splitting if an amount of upstream data is greater than or equal to the bearer separation threshold.

20. The method according to any of claims 12-14, wherein the PDCP configuration further comprises a bearer duplication indication.

21. The method of claim 20, wherein the step of determining the position of the probe is performed,

in case the at least two RLC entities comprise a uu RLC entity and at least one PC5 RLC entity, the bearer duplication indication is for indicating a uu link and a PC5 link bearer duplication;

alternatively, in case the at least two RLC entities comprise at least two PC5 RLC entities, the bearer duplication indication is used to indicate at least two PC5 link bearer duplication.

22. A network device, comprising:

a sending module, configured to send packet data convergence protocol PDCP configuration information to a terminal;

the PDCP configuration information includes link indication information for indicating that a PDCP entity is connected to at least two radio link control RLC entities including at least one PC5 RLC entity.

23. A network device comprising a transceiver and a processor,

the transceiver is configured to send packet data convergence protocol PDCP configuration information to a terminal;

the PDCP configuration information includes link indication information for indicating that a PDCP entity is connected to at least two radio link control RLC entities including at least one PC5 RLC entity.

24. A terminal, comprising:

a receiving module, configured to receive PDCP configuration information sent by a network device; the PDCP configuration information comprises link indication information, wherein the link indication information is used for indicating a PDCP entity to be connected with at least two wireless link control (RLC) entities, and the at least two RLC entities comprise at least one PC5 RLC entity;

a connection module for establishing multiple connections according to the PDCP configuration information; wherein the PDCP entity in the multiple connection is connected to the at least two RLC entities.

25. A terminal, comprising a transceiver and a processor,

the transceiver is configured to receive PDCP configuration information sent by a network device; the PDCP configuration information comprises link indication information, wherein the link indication information is used for indicating a PDCP entity to be connected with at least two wireless link control (RLC) entities, and the at least two RLC entities comprise at least one PC5 RLC entity;

The processor is used for establishing multiple connections according to the PDCP configuration information; wherein the PDCP entity in the multiple connection is connected to the at least two RLC entities.

26. A network device, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the link configuration method according to any one of claims 1 to 10.

27. A terminal, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the link configuration method of any of claims 11 to 21.

28. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the link configuration method according to any of claims 1 to 21.

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