Qos parameter configuration method, device, apparatus and storage medium

Abstract

Embodiments of the present application provide a QoS parameter configuration method, device, apparatus and storage medium, wherein the method is applied to a QoS management node, comprising: determining a QoS parameter used by a sidelink interface of a direct communication link in a target transmission direction between a relay terminal and a target communication peer of the QoS management node; and sending the QoS parameter to the relay terminal and / or the target communication peer. Through the QoS parameter configuration method, device, apparatus and storage medium provided by the embodiments of the present application, the QoS of an end-to-end bearer / DRB in an L2 sidelink relay scenario is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, and particularly relates to a QoS parameter configuration method, device, apparatus and storage medium. BACKGROUND

[0002] Traditional wireless communication adopts a cellular network communication mode, that is, a terminal and a network device (for example, a gNB (next generation NodeB)) perform uplink and downlink data / control information transmission through a Uu interface. In order to expand network coverage, one solution is to introduce a UE (User Equipment)-to-Network Relay. The UE-to-Network Relay can be a terminal with a relay function. For the UE-to-Network Relay, the interface between the Relay (relay terminal) and the network device uses a Uu interface, and the interface between the Relay and the terminal to be relayed (which can be referred to as a remote terminal or Remote UE) uses a direct communication interface (also referred to as a Sidelink interface or PC5 (Proximity Communication Port 5) interface). The link between the Relay and the network device can be referred to as a backhaul link (BH) for the remote terminal, and the terminal to be relayed and the remote terminal can perform data transmission through a direct communication link (also referred to as a Sidelink or PC5).

[0003] For the L2 UE-to-Network Relay scenario, the bearer or DRB (Data Radio Bearer) is end-to-end (that is, directly established between the remote terminal and the network device), and the lower layer (such as the RLC (Radio Link Control) layer, the MAC (Media Access Control) layer or the PHY (Physical) layer) is hop by hop, that is, based on each hop. The link between the specific network device and the Relay is one hop, and the link between the Relay and the remote terminal is another hop. Since there are two links, that is, a Sidelink and a Backhaul link (that is, a Uu link between the Relay and the network device), between the remote terminal and the network device, how to guarantee the QoS (Quality of Service) of the end-to-end bearer / DRB between the remote terminal and the network device in this scenario is a technical problem to be solved at present. SUMMARY

[0004] To solve the problems in the prior art, the embodiments of the present application provide a QoS parameter configuration method, device, apparatus and storage medium.

[0005] In a first aspect, the embodiments of the present application provide a quality of service (QoS) parameter configuration method applied to a QoS management node, comprising:

[0006] determining a QoS parameter used by a sidelink interface in a target transmission direction between a relay terminal and a target communication peer of the QoS management node;

[0007] sending the QoS parameter to the relay terminal and / or the target communication peer.

[0008] Optionally, for a UE-to-Network Relay scenario, the QoS management node is a network device.

[0009] The sending of the QoS parameter to the relay terminal and / or the target communication peer comprises at least one of:

[0010] sending a QoS parameter used by a sidelink interface in a downlink transmission direction to the relay terminal;

[0011] sending a QoS parameter used by a sidelink interface in an uplink transmission direction to the target communication peer.

[0012] Optionally, the sending of the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal comprises:

[0013] sending the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0014] Optionally, the sending of the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal through the RRC signaling on the Uu interface between the network device and the relay terminal comprises at least one of:

[0015] if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the downlink transmission direction and sending the first sidelink interface QoS parameter to the relay terminal;

[0016] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information element or field is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information element or field and sent to the relay terminal.

[0017] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the uplink transmission direction comprises:

[0018] The sending, to the target communication peer, the QoS parameter used by the sidelink interface in the uplink transmission direction comprises:

[0019] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the uplink transmission direction comprises at least one of:

[0020] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the uplink transmission direction and sent to the target communication peer.

[0021] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information element or field is added in the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the added information element or field and sent to the target communication peer.

[0022] Optionally, for a UE-to-UE Relay scenario, the QoS management node is a sending terminal in any sidelink transmission direction.

[0023] The sending, to the relay terminal and / or the target communication peer, the QoS parameter comprises:

[0024] The sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer.

[0025] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer comprises:

[0026] The QoS parameter used by the sidelink interface in the transmission direction of the relay terminal to the target communication peer is sent to the relay terminal through RRC signaling on a sidelink interface between the sending terminal and the relay terminal.

[0027] Optionally, the sending of the QoS parameter used by the sidelink interface in the transmission direction of the relay terminal to the target communication peer to the relay terminal through RRC signaling on a sidelink interface between the sending terminal and the relay terminal comprises at least one of the following:

[0028] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction of the relay terminal to the target communication peer and sent to the relay terminal;

[0029] If the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or a relay terminal, an information unit or domain is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or domain and sent to the relay terminal.

[0030] Optionally, for a UE-to-UE Relay scenario, the QoS management node is any remote terminal communicating through a UE-to-UE Relay;

[0031] The sending of the QoS parameter to the relay terminal and / or the target communication peer comprises at least one of the following:

[0032] The QoS parameter used by the sidelink interface in the transmission direction of the relay terminal to the target communication peer is sent to the relay terminal;

[0033] The QoS parameter used by the sidelink interface in the transmission direction of the target communication peer to the relay terminal is sent to the target communication peer.

[0034] Optionally, the sending of the QoS parameter used by the sidelink interface in the transmission direction of the relay terminal to the target communication peer to the relay terminal comprises:

[0035] The QoS parameter used by the sidelink interface in the transmission direction of the relay terminal to the target communication peer is sent to the relay terminal through RRC signaling on a sidelink interface between the remote terminal and the relay terminal.

[0036] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal through the RRC signaling over the sidelink interface between the remote terminal and the relay terminal comprises at least one of:

[0037] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer and sent to the relay terminal;

[0038] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information unit or field is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or field and sent to the relay terminal.

[0039] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal comprises:

[0040] The sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal through end-to-end RRC signaling between the remote terminal and the target communication peer.

[0041] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal through end-to-end RRC signaling between the remote terminal and the target communication peer comprises at least one of:

[0042] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction from the target communication peer to the relay terminal and sent to the target communication peer;

[0043] If the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or a relay terminal, an information element or field is added in the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the added information element or field and sent to the target communication peer.

[0044] Optionally, the QoS parameter includes, but is not limited to, any one or a combination of the following:

[0045] Data packet delay budget;

[0046] Data packet block error rate;

[0047] PC5 link aggregation maximum bit rate.

[0048] In a second aspect, the embodiments of the present application further provide a quality of service (QoS) parameter configuration method, applied to a relay terminal, including:

[0049] Receiving a QoS parameter sent by a QoS management node, the QoS parameter being used for a sidelink interface of a direct communication link in a transmission direction from the relay terminal to a target communication peer of the QoS management node.

[0050] Optionally, for a UE-to-Network Relay scenario, the QoS management node is a network device;

[0051] The receiving of the QoS parameter sent by the QoS management node includes:

[0052] Receiving, through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal, a QoS parameter sent by the network device, the QoS parameter being used for a sidelink interface in a transmission direction from the relay terminal to the target communication peer.

[0053] Optionally, for a UE-to-UE Relay scenario, the QoS management node is a sending terminal in any sidelink transmission direction or any remote terminal communicating through UE-to-UE Relay;

[0054] The receiving of the QoS parameter sent by the QoS management node includes:

[0055] Receiving, by the sidelink interface between the QoS management node and the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer sent by the QoS management node through RRC signaling.

[0056] Optionally, the relay terminal uses a terminal self-selected resource allocation mode for the sidelink interface.

[0057] In a third aspect, the embodiments of the present application further provide a quality of service (QoS) parameter configuration method, applied to a target communication peer of a QoS management node, comprising:

[0058] Receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node.

[0059] Optionally, the receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node comprises:

[0060] Receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node through end-to-end radio resource control (RRC) signaling between the QoS management node and the target communication peer.

[0061] Optionally, the target communication peer uses a terminal self-selected resource allocation mode for the sidelink interface.

[0062] In a fourth aspect, the embodiments of the present application further provide a quality of service (QoS) management node, comprising a memory, a transceiver, and a processor, wherein:

[0063] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and implement the steps of the QoS parameter configuration method of the first aspect.

[0064] In a fifth aspect, the embodiments of the present application further provide a relay terminal, comprising a memory, a transceiver, and a processor, wherein:

[0065] The memory is configured to store a computer program; the transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and implement the steps of the QoS parameter configuration method of the second aspect.

[0066] In a sixth aspect, the embodiments of the present application further provide a target communication peer of a quality of service (QoS) management node, comprising a memory, a transceiver, and a processor, wherein:

[0067] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; and a processor for reading the computer program in the memory and implementing the steps of the QoS parameter configuration method according to the third aspect.

[0068] In a seventh aspect, the embodiments of the present application further provide a quality of service (QoS) parameter configuration apparatus applied to a QoS management node, comprising:

[0069] a determining unit configured to determine a QoS parameter used by a direct communication link (sidelink) interface in a target transmission direction between a relay terminal and a target communication peer of the QoS management node;

[0070] a sending unit configured to send the QoS parameter to the relay terminal and / or the target communication peer.

[0071] In an eighth aspect, the embodiments of the present application further provide a quality of service (QoS) parameter configuration apparatus applied to a relay terminal, comprising:

[0072] a first receiving unit configured to receive a QoS parameter sent by a QoS management node and used by a direct communication link (sidelink) interface in a transmission direction from the relay terminal to a target communication peer of the QoS management node.

[0073] In a ninth aspect, the embodiments of the present application further provide a quality of service (QoS) parameter configuration apparatus applied to a target communication peer of a QoS management node, comprising:

[0074] a second receiving unit configured to receive a QoS parameter sent by the QoS management node and used by a direct communication link (sidelink) interface in a transmission direction from the target communication peer to a relay terminal.

[0075] In a tenth aspect, the embodiments of the present application further provide a processor-readable storage medium, which stores a computer program for causing a processor to execute the steps of the QoS parameter configuration method according to the first aspect, or execute the steps of the QoS parameter configuration method according to the second aspect, or execute the steps of the QoS parameter configuration method according to the third aspect.

[0076] The QoS parameter configuration method, device, apparatus and storage medium provided by the embodiments of the present application determine the QoS parameter used by the sidelink interface by an end-to-end QoS management node, and send the QoS parameter to a relay terminal and / or a target communication peer of the QoS management node, so that the relay terminal and / or the target communication peer of the QoS management node can perform data transmission of the sidelink interface based on the QoS parameter, thereby ensuring the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario. BRIEF DESCRIPTION OF DRAWINGS

[0077] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0078] Figure 1 is a schematic diagram of a conventional wireless communication method provided by the prior art;

[0079] Figure 2 is a schematic diagram of a device-to-device direct communication method provided by the prior art;

[0080] Figure 3 is a schematic diagram of a UE-to-Network Relay provided by the prior art;

[0081] Figure 4 is a schematic diagram of a user plane protocol stack of L2 UE-to-Network Relay provided by the prior art;

[0082] Figure 5 is one of the flow schematic diagrams of the QoS parameter configuration method provided by the embodiments of the present application;

[0083] Figure 6 is the second flow schematic diagram of the QoS parameter configuration method provided by the embodiments of the present application;

[0084] Figure 7 is the third flow schematic diagram of the QoS parameter configuration method provided by the embodiments of the present application;

[0085] Figure 8 is one of the implementation schematic diagrams of the QoS parameter configuration method provided by the embodiments of the present application;

[0086] Figure 9 is the second implementation schematic diagram of the QoS parameter configuration method provided by the embodiments of the present application;

[0087] Figure 10Figure 3 is a third implementation schematic diagram of the QoS parameter configuration method provided by the embodiments of the present application;

[0088] Figure 11 Figure 4 is a structural schematic diagram of the QoS management node provided by the embodiments of the present application;

[0089] Figure 12 Figure 5 is a structural schematic diagram of the relay terminal provided by the embodiments of the present application;

[0090] Figure 13 Figure 6 is a structural schematic diagram of the target communication peer of the QoS management node provided by the embodiments of the present application;

[0091] Figure 14 Figure 7 is a first structural schematic diagram of the QoS parameter configuration device provided by the embodiments of the present application;

[0092] Figure 15 Figure 8 is a second structural schematic diagram of the QoS parameter configuration device provided by the embodiments of the present application;

[0093] Figure 16 Figure 9 is a third structural schematic diagram of the QoS parameter configuration device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0094] In the embodiments of the present application, the term "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0095] In the embodiments of the present application, the term "a plurality of" means two or more, and other quantifiers are similar.

[0096] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0097] In order to more clearly understand the embodiments of the present application, first, some related background knowledge is introduced as follows.

[0098] (1) Cellular network communication

[0099] Figure 1 Figure 1 is a schematic diagram of a conventional wireless communication method provided by the prior art, such as Figure 1As shown, traditional wireless communication adopts cellular network communication mode, i.e., terminals and network devices perform uplink / downlink data / control information transmission through a Uu interface.

[0100] (2) Direct communication

[0101] Figure 2 A schematic diagram of the device-to-device direct communication mode provided by the prior art is shown in FIG. 2. Figure 2 As shown, direct communication refers to a mode in which terminals in proximity can perform data transmission within a short distance range through a direct communication link (also referred to as a Sidelink or PC5).

[0102] (3) Relay

[0103] Figure 3 A schematic diagram of the UE-to-Network Relay provided by the prior art is shown in FIG. 3. Figure 3 As shown, in order to expand network coverage, UE-to-Network Relay (terminal-to-network device relay) can be introduced. The relay itself can be a terminal with relay function (also referred to as a sidelink Relay). For the UE-to-Network Relay, the interface between the relay terminal and the network device uses a Uu interface, and the interface between the relay terminal and the terminal being relayed (also referred to as a remote terminal) uses a Sidelink interface (also referred to as a direct communication interface, or a sidelink interface or a PC5 interface). The link (Uu link) between the relay terminal and the network device can be referred to as a backhaul link for the remote terminal.

[0104] The UE-to-Network Relay is further divided into L2 UE-to-Network Relay and L3 UE-to-Network Relay according to different protocol stack architectures. Figure 4 A schematic diagram of the user plane protocol stack of the L2 UE-to-Network Relay provided by the prior art is shown in FIG. 4. Figure 4 As shown, in the L2 UE-to-Network Relay scenario, the bearer or DRB is end-to-end (i.e., directly established between the Remote UE and the gNB), and the lower layer (such as RLC, MAC or PHY) is hop by hop.

[0105] For the L2 UE-to-Network Relay scenario, there are two links between the remote terminal and the network device: the sidelink and the Uu link (also known as the backhaul link or Uu backhaul link). How to ensure the QoS of the end-to-end bearer / DRB between the remote terminal and the network device in this scenario is a problem that needs to be solved. The same problem also exists for the L2 UE-to-UE Relay scenario.

[0106] To solve the above problems, the embodiments of the present application provide a relay scenario QoS management scheme, which can ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario.

[0107] Figure 5 One of the flowcharts of the QoS parameter configuration method provided by the embodiments of the present application is shown in FIG. 1. The method is applied to a QoS management node, such as a network device (e.g., a base station) in the UE-to-Network Relay scenario or a sending terminal or any remote terminal in the UE-to-UE Relay scenario. The method includes the following steps: Figure 5

[0108] Step 500: Determine the QoS parameters used by the sidelink interface in the target transmission direction between the relay terminal and the target communication opposite end of the QoS management node.

[0109] Specifically, in the embodiments of the present application, the QoS management node, which can also be referred to as an end-to-end QoS management node, is a network node that manages and configures QoS parameters. It can be a network device (e.g., a base station) in the UE-to-Network Relay scenario, or a sending terminal or any remote terminal in the UE-to-UE Relay scenario.

[0110] To ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario, the QoS management node needs to determine the QoS parameters used by the sidelink interface in the target transmission direction between the relay terminal and the target communication opposite end of the QoS management node. The specific determination method can depend on the implementation of the QoS management node, which is not limited here.

[0111] The target transmission direction can refer to the transmission direction from the relay terminal to the target communication opposite end of the QoS management node, or the transmission direction from the target communication opposite end of the QoS management node to the relay terminal, or each transmission direction between the relay terminal and the target communication opposite end of the QoS management node.

[0112] ​For example, in the UE-to-Network Relay scenario, the target transmission direction can refer to the transmission direction from the relay terminal to the remote terminal (i.e., the downlink transmission direction), the transmission direction from the remote terminal to the relay terminal (i.e., the uplink transmission direction), or the downlink and uplink transmission directions.

[0113] Optionally, the QoS parameter can include, but is not limited to, any one or a combination of the following:

[0114] a packet delay budget (PDB);

[0115] a packet error rate (PER);

[0116] a PC5 link-aggregated maximum bit rate (PC5 LINK-AMBR).

[0117] Step 501: sending the QoS parameter to the relay terminal and / or the target communication peer of the QoS management node.

[0118] Specifically, after determining the QoS parameter used by the sidelink interface in the target transmission direction between the relay terminal and the target communication peer of the QoS management node, the QoS management node can send the QoS parameter to the relay terminal and / or the target communication peer of the QoS management node, so that the relay terminal and / or the target communication peer of the QoS management node can perform data transmission of the sidelink interface in the target transmission direction between the relay terminal and the target communication peer of the QoS management node according to the received QoS parameter.

[0119] For example, in a UE-to-Network Relay scenario, if there is only a downlink data transmission requirement, the network device can determine the QoS parameter used by the sidelink interface in the downlink transmission direction between the relay terminal and the remote terminal, and then send the QoS parameter to the relay terminal, so that the relay terminal can perform downlink data transmission between the relay terminal and the remote terminal based on the QoS parameter after receiving the QoS parameter; if there is only an uplink data transmission requirement, the network device can determine the QoS parameter used by the sidelink interface in the uplink transmission direction between the relay terminal and the remote terminal, and then send the QoS parameter to the remote terminal, so that the remote terminal can perform uplink data transmission between the remote terminal and the relay terminal based on the QoS parameter after receiving the QoS parameter; if there is both a downlink data transmission requirement and an uplink data transmission requirement, the network device can determine the QoS parameter used by the sidelink interface in the downlink and uplink transmission directions between the relay terminal and the remote terminal, and then send the QoS parameter to the relay terminal and the remote terminal respectively.

[0120] The QoS parameter configuration method provided by the embodiments of the present application determines the QoS parameter used by the sidelink interface by the end-to-end QoS management node, and sends the QoS parameter to the relay terminal and / or the target communication peer of the QoS management node, so that the relay terminal and / or the target communication peer of the QoS management node can perform data transmission of the sidelink interface based on the QoS parameter, thereby ensuring the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario.

[0121] Optionally, for the UE-to-Network Relay scenario, the QoS management node is for the network device.

[0122] The sending of the QoS parameter to the relay terminal and / or the target communication peer includes at least one of the following:

[0123] The QoS parameter used by the sidelink interface in the downlink transmission direction is sent to the relay terminal.

[0124] The QoS parameter used by the sidelink interface in the uplink transmission direction is sent to the target communication peer.

[0125] Specifically, for the UE-to-Network Relay scenario, the QoS management node is for the network device.

[0126] The network device can send the QoS parameter to the relay terminal after determining the QoS parameter used by the sidelink interface in the transmission direction (i.e., the downlink transmission direction) of the target communication peer (i.e., the remote terminal) of the relay terminal to the QoS management node; or send the QoS parameter to the remote terminal after determining the QoS parameter used by the sidelink interface in the transmission direction (i.e., the uplink transmission direction) of the remote terminal to the relay terminal; or send the QoS parameter to the relay terminal and the remote terminal, respectively, after determining the QoS parameter used by the sidelink interface in the downlink and uplink transmission directions between the relay terminal and the remote terminal.

[0127] Optionally, the sending of the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal comprises:

[0128] The QoS parameter used by the sidelink interface in the downlink transmission direction is sent to the relay terminal through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0129] Specifically, in the UE-to-Network Relay scenario, for the QoS parameter used by the sidelink interface in the downlink transmission direction, the network device can send the QoS parameter to the relay terminal through RRC signaling on a Uu interface between the network device and the relay terminal.

[0130] Optionally, the sending of the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal through RRC signaling on a Uu interface between the network device and the relay terminal comprises at least one of:

[0131] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the downlink transmission direction and sent to the relay terminal;

[0132] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information unit or domain is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or domain and sent to the relay terminal.

[0133] Specifically, in the UE-to-Network Relay scenario, when the network device sends the QoS parameter used by the sidelink interface in the downlink transmission direction to the relay terminal, the network device can send the QoS parameter to the relay terminal in different ways for different QoS parameters.

[0134] For the first sidelink interface QoS parameters related to the sidelink interface logical channel, such as PDB and PER, the network device can carry the first sidelink interface QoS parameters in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the downlink transmission direction, and send to the relay terminal.

[0135] For the second sidelink interface QoS parameters related to the remote terminal and / or the relay terminal, such as PC5 LINK-AMBR, the network device can add one or more information units IEs (Information Element) or fields in the RRC signaling on the Uu interface between the network device and the relay terminal, and carry the second sidelink interface QoS parameters in the added information unit or field, and send to the relay terminal.

[0136] Optionally, the sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer includes:

[0137] The QoS parameter used by the sidelink interface in the uplink transmission direction is sent to the target communication peer through end-to-end RRC signaling between the network device and the target communication peer.

[0138] Specifically, in the UE-to-Network Relay scenario, for the QoS parameter used by the sidelink interface in the uplink transmission direction, the network device can send the QoS parameter to the remote terminal through end-to-end RRC signaling between the network device and the remote terminal.

[0139] Optionally, the sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer through end-to-end RRC signaling between the network device and the target communication peer includes at least one of:

[0140] If the QoS parameter is the first sidelink interface QoS parameter related to the sidelink interface logical channel, the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the uplink transmission direction, and is sent to the target communication peer;

[0141] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information element or field is added in the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the added information element or field and sent to the target communication peer.

[0142] Specifically, in the UE-to-Network Relay scenario, when the network device sends the QoS parameter used by the sidelink interface in the uplink transmission direction to the remote terminal, for different QoS parameters, the network device can send the remote terminal in different ways.

[0143] For the first sidelink interface QoS parameter related to the sidelink interface logical channel, such as PDB and PER, the network device can carry the first sidelink interface QoS parameter in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the uplink transmission direction and send it to the remote terminal.

[0144] For the second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, such as PC5 LINK-AMBR, the network device can add one or more information elements or fields in the end-to-end RRC signaling between the network device and the remote terminal, and carry the second sidelink interface QoS parameter in the added information element or field and send it to the remote terminal.

[0145] Optionally, for the UE-to-UE Relay scenario, the QoS management node can send the QoS parameter to the sending terminal in any sidelink transmission direction.

[0146] Said sending the QoS parameter to the relay terminal and / or the target communication peer includes:

[0147] Said sending the QoS parameter to the relay terminal and / or the target communication peer includes:

[0148] Specifically, for the UE-to-UE Relay scenario, the QoS management node can send the QoS parameter to the sending terminal in any sidelink transmission direction.

[0149] The sending terminal can send the QoS parameter to the relay terminal after determining the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the sending terminal.

[0150] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises:

[0151] The sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal through RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

[0152] Specifically, in the UE-to-UE Relay scenario, for the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the sending terminal, the QoS management node sending terminal can send the QoS parameter to the relay terminal through RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

[0153] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises at least one of the following:

[0154] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer of the relay terminal and sent to the relay terminal.

[0155] If the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or a relay terminal, an information unit or domain is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or domain and sent to the relay terminal.

[0156] Specifically, in the UE-to-UE Relay scenario, when the QoS management node sending terminal sends the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the sending terminal to the relay terminal, for different QoS parameters, the sending terminal can send to the relay terminal in different ways.

[0157] For the first sidelink interface QoS parameters related to the sidelink interface logical channel, such as PDB and PER, the sending terminal can carry the first sidelink interface QoS parameters in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the transmission direction of the relay terminal to the target communication peer of the sending terminal, and send to the relay terminal.

[0158] For the second sidelink interface QoS parameters related to the remote terminal and / or the relay terminal, such as PC5 LINK-AMBR, the sending terminal can add one or more information units IEs in the RRC signaling on the sidelink interface between the sending terminal and the relay terminal, and carry the second sidelink interface QoS parameters in the added information unit or field, and send to the relay terminal.

[0159] Optionally, for the UE-to-UE Relay scenario, the QoS management node can determine the QoS parameters for any remote terminal communicating through the UE-to-UE Relay.

[0160] The sending of the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following:

[0161] The sending of the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following:

[0162] The sending of the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following:

[0163] Specifically, for the UE-to-UE Relay scenario, the QoS management node can determine the QoS parameters for any remote terminal communicating through the UE-to-UE Relay.

[0164] The QoS management node can determine the QoS parameters for any remote terminal communicating through the UE-to-UE Relay.

[0165] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises:

[0166] The sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises RRC signaling over the sidelink interface between the remote terminal and the relay terminal.

[0167] Specifically, in the UE-to-UE Relay scenario, for the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal, the QoS management node can send the QoS parameter to the relay terminal through RRC signaling over the sidelink interface between the QoS management node and the relay terminal.

[0168] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the relay terminal comprises at least one of the following:

[0169] If the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer of the relay terminal and sent to the relay terminal.

[0170] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information unit or domain is added in the RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or domain and sent to the relay terminal.

[0171] Specifically, in the UE-to-UE Relay scenario, when the QoS management node sends the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node to the relay terminal, for different QoS parameters, the QoS management node can send the QoS parameters to the relay terminal in different ways.

[0172] For the first sidelink interface QoS parameters related to the sidelink interface logical channel, such as PDB and PER, the QoS management node can carry the first sidelink interface QoS parameters in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the transmission direction of the relay terminal to the target communication peer of the QoS management node, and send to the relay terminal.

[0173] For the second sidelink interface QoS parameters related to the remote terminal and / or the relay terminal, such as PC5 LINK-AMBR, the QoS management node can add one or more information units IE in the RRC signaling on the sidelink interface between the QoS management node and the relay terminal, and carry the second sidelink interface QoS parameters in the added information unit or field, and send to the relay terminal.

[0174] Optionally, the sending the QoS parameters used by the sidelink interface in the transmission direction of the target communication peer to the relay terminal to the target communication peer includes:

[0175] The QoS parameters used by the sidelink interface in the transmission direction of the target communication peer to the relay terminal are sent to the target communication peer through end-to-end RRC signaling between the remote terminal and the target communication peer.

[0176] Specifically, in the UE-to-UE Relay scenario, for the QoS parameters used by the sidelink interface in the transmission direction of the target communication peer of the QoS management node to the relay terminal, the QoS management node can send the QoS parameters to the target communication peer of the QoS management node through end-to-end RRC signaling between the QoS management node and the target communication peer of the QoS management node.

[0177] Optionally, the sending the QoS parameters used by the sidelink interface in the transmission direction of the target communication peer to the relay terminal to the target communication peer through end-to-end RRC signaling between the remote terminal and the target communication peer includes at least one of:

[0178] If the QoS parameter is the first sidelink interface QoS parameter related to the sidelink interface logical channel, the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the transmission direction of the target communication peer to the relay terminal, and is sent to the target communication peer;

[0179] If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information element or field is added in the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the added information element or field and sent to the target communication peer of the QoS management node.

[0180] Specifically, in the UE-to-UE Relay scenario, when the QoS management node sends the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer of the QoS management node to the relay terminal to the target communication peer of the QoS management node, the QoS management node can send the QoS parameter to the target communication peer of the QoS management node in different ways for different QoS parameters.

[0181] For the first sidelink interface QoS parameter related to the sidelink interface logical channel, such as PDB and PER, the QoS management node can carry the first sidelink interface QoS parameter in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the transmission direction from the target communication peer of the QoS management node to the relay terminal, and send the first sidelink interface QoS parameter to the target communication peer of the QoS management node.

[0182] For the second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, such as PC5 LINK-AMBR, the QoS management node can add one or more information elements (IEs) in the end-to-end RRC signaling between the QoS management node and the target communication peer of the QoS management node, and carry the second sidelink interface QoS parameter in the added information element or field, and send the second sidelink interface QoS parameter to the target communication peer of the QoS management node.

[0183] Figure 6 The second flowchart of the QoS parameter configuration method provided by the embodiments of the present application is applied to a relay terminal, as shown in the figure, and the method comprises the following steps: Figure 6

[0184] Step 600: receiving the QoS parameter used by the direct communication link sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node sent by the QoS management node.

[0185] ​Specifically, in the embodiments of the present application, the QoS management node, which can also be referred to as an end-to-end QoS management node, is a network node that manages and configures QoS parameters, and can be a network device (for example, a base station) in a UE-to-Network Relay scenario; or can be a sending terminal or any remote terminal in each transmission direction in a UE-to-UE Relay scenario.

[0186] To ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario, the QoS management node can send the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node to the relay terminal after determining the QoS parameter, and the relay terminal can perform data transmission of the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node according to the QoS parameter after receiving the QoS parameter.

[0187] The QoS parameter configuration method provided by the embodiments of the present application can ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario.

[0188] Optionally, for the UE-to-Network Relay scenario, the QoS management node is a network device.

[0189] The receiving of the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node sent by the QoS management node includes:

[0190] The QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node sent by the network device is received through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0191] Specifically, in the UE-to-Network Relay scenario, the QoS management node is a network device. For the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node, the relay terminal can receive the QoS parameter sent by the network device through RRC signaling on a Uu interface between the network device and the relay terminal.

[0192] Optionally, for the UE-to-UE Relay scenario, the QoS management node is for any sidelink transmission direction of a transmitting terminal or any remote terminal communicating through the UE-to-UE Relay;

[0193] The QoS parameter used by the sidelink interface in the transmission direction of the target communication peer of the relay terminal to the QoS management node is received by the QoS management node and sent by the QoS management node.

[0194] The QoS parameter used by the sidelink interface in the transmission direction of the target communication peer of the relay terminal to the QoS management node is received by the QoS management node and sent by the QoS management node.

[0195] Specifically, in the UE-to-UE Relay scenario, the QoS management node can be for any sidelink transmission direction of a transmitting terminal or any remote terminal communicating through the UE-to-UE Relay. For the QoS parameter used by the sidelink interface in the transmission direction of the target communication peer of the relay terminal to the QoS management node, the relay terminal can receive the QoS parameter sent by the QoS management node through RRC signaling on the sidelink interface between the QoS management node and the relay terminal.

[0196] Optionally, the relay terminal uses a terminal self-selected resource allocation mode on the sidelink interface.

[0197] Specifically, in the embodiments of the present application, the relay terminal can use a terminal self-selected resource allocation mode on the sidelink interface, so that after receiving the QoS parameter sent by the QoS management node, the relay terminal can autonomously select resources according to the QoS parameter, and the resource selection needs to meet the QoS parameter requirements.

[0198] Figure 7 The third flowchart of the QoS parameter configuration method provided by the embodiments of the present application is applied to the target communication peer of the QoS management node, as shown in the figure, the method comprises the following steps: Figure 7 The third flowchart of the QoS parameter configuration method provided by the embodiments of the present application is applied to the target communication peer of the QoS management node, as shown in the figure, the method comprises the following steps:

[0199] Step 700, receiving the QoS parameter used by the sidelink interface in the transmission direction of the target communication peer of the relay terminal to the QoS management node and sent by the QoS management node.

[0200] Specifically, in the embodiments of the present application, the QoS management node, which can also be referred to as an end-to-end QoS management node, is a network node that manages and configures QoS parameters, and can be a network device (for example, a base station) in a UE-to-Network Relay scenario; or can be a sending terminal or any remote terminal in each transmission direction in a UE-to-UE Relay scenario.

[0201] To ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario, the QoS management node can send the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer of the QoS management node to the relay terminal to the target communication peer of the QoS management node after determining the QoS parameter, and the target communication peer of the QoS management node can perform data transmission of the sidelink interface in the transmission direction from the target communication peer of the QoS management node to the relay terminal according to the QoS parameter after receiving the QoS parameter.

[0202] The QoS parameter configuration method provided by the embodiments of the present application can ensure the QoS of the end-to-end bearer / DRB in the L2 sidelink Relay scenario.

[0203] Optionally, the receiving of the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node comprises:

[0204] The QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node is received through end-to-end radio resource control (RRC) signaling between the QoS management node and the target communication peer.

[0205] Specifically, for the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer of the QoS management node to the relay terminal, the target communication peer can receive the QoS parameter sent by the QoS management node through end-to-end RRC signaling between the QoS management node and the target communication peer.

[0206] Optionally, the target communication peer uses a terminal self-selected resource allocation mode for the sidelink interface.

[0207] Specifically, in the embodiments of the present application, the target communication peer of the QoS management node can use the resource allocation mode selected by the terminal on the sidelink interface, so that the target communication peer can autonomously select resources according to the QoS parameters after receiving the QoS parameters sent by the QoS management node, and the resource selection needs to meet the QoS parameter requirements.

[0208] Figure 8 One of the implementation schematic diagrams of the QoS parameter configuration method provided in the embodiments of the present application is shown in FIG. 8, and the method is applied to a U2N (UE-to-Network) Relay scenario. In the embodiments, the end-to-end QoS management node is a network device, and the method includes the following steps. Figure 8

[0209] Step 800, the network device divides the end-to-end QoS parameters between the Uu link and the sidelink.

[0210] The network device determines the QoS parameters used by the sidelink interface in the uplink and / or downlink direction. The QoS parameters include but are not limited to one or a combination of the following:

[0211] Packet delay budget PDB;

[0212] Packet error rate PER;

[0213] PC5 link aggregation maximum bit number PC5 LINK-AMBR.

[0214] The specific determination method of the QoS parameters depends on the implementation of the network device.

[0215] For downlink, the specific implementation method can be as follows:

[0216] For downlink end-to-end PDB, the network device can divide the PDB of the end-to-end bearer / DRB between the Remote UE and the network device into the PDB of the Uu link and the PDB of the sidelink, and the sum of the two PDBs is equal to the PDB of the downlink end-to-end bearer / DRB between the Remote UE and the network device.

[0217] For downlink end-to-end PER, the network device can determine the PER of the Uu link and the PER of the sidelink according to the PER of the end-to-end bearer / DRB between the Remote UE and the network device, and the combination of the two PERs needs to be able to guarantee the PER of the downlink end-to-end bearer / DRB between the Remote UE and the network device.

[0218] ​For downlink end-to-end PC5 LINK-AMBR, the network device can determine the PC5 LINK-AMBR according to the UE-AMBR of all non-GBR (Guaranteed Bit Rate) end-to-end bearers / DRBs between the Remote UE and the network device in the downlink direction, for example, the same value can be set for both.

[0219] For uplink, the specific implementation manner can be as follows:

[0220] For uplink end-to-end PDB, the network device can divide the PDB of the end-to-end bearer / DRB between the Remote UE and the network device into the PDB of the Uu link and the PDB of the sidelink, and the sum of the two PDBs is equal to the PDB of the uplink end-to-end bearer / DRB between the Remote UE and the network device.

[0221] For uplink end-to-end PER, the network device can determine the PER of the Uu link and the PER of the sidelink according to the PER of the end-to-end bearer / DRB between the Remote UE and the network device, and the combination of the two PERs needs to be able to guarantee the PER of the uplink end-to-end bearer / DRB between the Remote UE and the network device.

[0222] For uplink end-to-end PC5 LINK-AMBR, the network device can determine the PC5 LINK-AMBR according to the UE-AMBR of all non-GBR end-to-end bearers / DRBs between the Remote UE and the network device in the uplink direction, for example, the same value can be set for both.

[0223] Step 801, the network device informs the Relay UE of the QoS parameter used by the sidelink interface in the downlink direction.

[0224] In this step, the network device needs to inform the Relay UE of the QoS parameter used by the sidelink interface in the downlink direction through the RRC signaling on the Uu interface between the network device and the Relay UE:

[0225] For the sidelink interface QoS parameter (such as PDB and PER) related to the sidelink interface logical channel, the QoS parameter can be carried in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the downlink direction;

[0226] For sidelink interface QoS parameters related to UE (such as PC5LINK-AMBR), the QoS parameters can be carried by a newly added information element (IE) or field in RRC signaling.

[0227] Step 802, the Relay UE determines the QoS parameters used by the sidelink interface in the downlink direction.

[0228] Specifically, the Relay UE can determine the QoS parameters used by the sidelink interface in the downlink direction according to the indication of the network device in step 801.

[0229] Step 803, the network device informs the Remote UE of the QoS parameters used by the sidelink interface in the uplink direction.

[0230] The network device needs to inform the Remote UE of the QoS parameters used by the sidelink interface in the uplink direction through end-to-end RRC signaling between the network device and the Remote UE:

[0231] For sidelink interface QoS parameters related to sidelink interface logical channels (such as PDB and PER), the QoS parameters can be carried in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the uplink direction;

[0232] For sidelink interface QoS parameters related to UE (such as PC5LINK-AMBR), the QoS parameters can be carried by a newly added information element (IE) or field in RRC signaling.

[0233] Step 804, the Remote UE determines the QoS parameters used by the sidelink interface in the uplink direction.

[0234] Specifically, the Remote UE can determine the QoS parameters used by the sidelink interface in the uplink direction according to the indication of the network device in step 803.

[0235] It should be noted that in the present embodiment, steps 801-802 and steps 803-804 do not have a strict order of execution. Steps 801-802 can be executed first, and then steps 803-804 can be executed. Alternatively, steps 803-804 can be executed first, and then steps 801-802 can be executed.

[0236] In this embodiment, steps 801-802 and steps 803-804 can be optional, for example: if there is only uplink data transmission requirement, only steps 803-804 can be executed; if there is only downlink data transmission requirement, only steps 801-802 can be executed.

[0237] Optionally, in this embodiment, steps 801-802 are executed on the premise that the Relay UE uses the terminal self-selected resource allocation mode on the sidelink interface; steps 803-804 are executed on the premise that the Remote UE uses the terminal self-selected resource allocation mode on the sidelink interface.

[0238] Figure 9 The second implementation schematic diagram of the QoS parameter configuration method provided by the embodiments of the present application is shown in FIG. 9B. Figure 9 As shown in FIG. 9B, the application scenario of the method is a U2U (UE-to-UE) Relay scenario, and the end-to-end QoS management node is the sending terminal in each transmission direction. In this embodiment, Remote UE 2 sends to Remote UE 1 as an example, the method includes the following steps:

[0239] Step 900, Remote UE 2 divides the end-to-end QoS parameters between the two segments of sidelink.

[0240] Remote UE 2 determines the QoS parameters used by each segment of sidelink interface in the direction from Remote UE 2 to Remote UE 1. The QoS parameters include but are not limited to one or a combination of the following:

[0241] Packet delay budget PDB;

[0242] Packet error rate PER;

[0243] PC5 link aggregation maximum bit number PC5 LINK-AMBR.

[0244] The specific determination method of the QoS parameters depends on the implementation of Remote UE 2.

[0245] For the end-to-end PDB in the direction from Remote UE 2 to Remote UE 1, Remote UE 2 can divide the PDB of the end-to-end bearer / DRB between Remote UE 2 and Remote UE 1, and the sum of the PDBs of the two segments of sidelink is equal to the PDB of the end-to-end bearer / DRB between Remote UE 2 and Remote UE 1.

[0246] For end-to-end PER in Remote UE 2 to Remote UE 1 direction, Remote UE 2 can determine the PER of two segments of sidelink respectively according to the PER of end-to-end bearer / DRB between Remote UE 2 and Remote UE 1, and the combination of the PER of two segments needs to be able to guarantee the PER of end-to-end bearer / DRB between Remote UE 2 and Remote UE 1.

[0247] For end-to-end PC5 LINK-AMBR in Remote UE 2 to Remote UE 1 direction, Remote UE 2 can take the end-to-end PC5 LINK-AMBR as PC5 LINK-AMBR on each segment of sidelink.

[0248] Step 901, Remote UE 2 informs Relay UE of the QoS parameter used by the sidelink interface in Relay UE to Remote UE 1 direction.

[0249] In this step, Remote UE 2 needs to inform Relay UE of the QoS parameter used by the sidelink interface in Relay UE to Remote UE 1 direction through RRC signaling on the sidelink interface between Remote UE 2 and Relay UE:

[0250] For sidelink interface QoS parameters related to sidelink interface logical channel (such as PDB and PER), the QoS parameters can be carried in sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in Relay UE to Remote UE 1 direction;

[0251] For UE-related sidelink interface QoS parameters (such as PC5 LINK-AMBR), the QoS parameters can be carried through an added information element IE or field in RRC signaling.

[0252] Step 902, Relay UE determines the QoS parameter used by the sidelink interface in Relay UE to Remote UE 1 direction.

[0253] Specifically, Relay UE can determine the QoS parameter used by the sidelink interface in Relay UE to Remote UE 1 direction according to the indication of Remote UE 2 in step 901.

[0254] Step 903, the Relay UE performs data transmission on the sidelink interface in the direction from the Relay UE to the Remote UE 1 according to the QoS parameter determined in step 902.

[0255] Optionally, in the embodiment, steps 902 and 903 are performed on the premise that the Relay UE uses the terminal self-selected resource allocation mode on the sidelink interface.

[0256] Figure 10 The third implementation schematic diagram of the QoS parameter configuration method provided in the embodiment of the application is shown in FIG. 10C. The application scenario of the method is a U2U (UE-to-UE) Relay scenario, and the end-to-end QoS management node is any remote terminal. In the embodiment, Remote UE 2 is taken as an example of the end-to-end QoS management node. The method includes the following steps: Figure 10

[0257] Step 1000, the Remote UE 2 divides the end-to-end QoS parameter between the two sidelinks.

[0258] The Remote UE 2 determines the QoS parameter used by each sidelink interface in the direction from the Remote UE 2 to the Remote UE 1 or in the direction from the Remote UE 1 to the Remote UE 2. The QoS parameter includes but is not limited to one or a combination of the following:

[0259] a data packet delay budget PDB;

[0260] a data packet block error rate PER;

[0261] a PC5 link aggregation maximum bit number PC5 LINK-AMBR.

[0262] The specific determination manner of the QoS parameter depends on the implementation of the Remote UE 2.

[0263] For the direction from the Remote UE 2 to the Remote UE 1, the specific implementation manner can be as follows:

[0264] For the end-to-end PDB in the direction from the Remote UE 2 to the Remote UE 1, the Remote UE 2 can divide the PDB of the end-to-end bearer / DRB between the Remote UE 2 and the Remote UE 1, and the sum of the PDBs of the two sidelinks is equal to the PDB of the end-to-end bearer / DRB between the Remote UE 2 and the Remote UE 1.

[0265] ​For end-to-end PER in Remote UE 2 to Remote UE 1 direction, Remote UE 2 can determine the PER of two segments of sidelink respectively according to the PER of end-to-end bearer / DRB between Remote UE 2 and Remote UE 1, and the combination of the PER of two segments needs to be able to guarantee the PER of end-to-end bearer / DRB between Remote UE 2 and Remote UE 1.

[0266] For end-to-end PC5 LINK-AMBR in Remote UE 2 to Remote UE 1 direction, Remote UE 2 can take the end-to-end PC5 LINK-AMBR as the PC5 LINK-AMBR on each segment of sidelink.

[0267] For Remote UE 1 to Remote UE 2 direction, the specific implementation manner can be as follows:

[0268] For end-to-end PDB in Remote UE 1 to Remote UE 2 direction, Remote UE 2 can divide the PDB of end-to-end bearer / DRB between Remote UE 1 and Remote UE 2, and the sum of PDB of two segments of sidelink is equal to the PDB of end-to-end bearer / DRB between Remote UE 1 and Remote UE 2.

[0269] For end-to-end PER in Remote UE 1 to Remote UE 2 direction, Remote UE 2 can determine the PER of two segments of sidelink respectively according to the PER of end-to-end bearer / DRB between Remote UE 1 and Remote UE 2, and the combination of the PER of two segments needs to be able to guarantee the PER of end-to-end bearer / DRB between Remote UE 1 and Remote UE 2.

[0270] For end-to-end PC5 LINK-AMBR in Remote UE 1 to Remote UE 2 direction, Remote UE 2 can take the end-to-end PC5 LINK-AMBR as the PC5 LINK-AMBR on each segment of sidelink.

[0271] Step 1001, Remote UE 2 informs the Relay UE of the QoS parameter used by the sidelink interface in the Relay UE to Remote UE 1 direction.

[0272] In this step, Remote UE 2 needs to inform the QoS parameters used by the sidelink interface in the direction of Relay UE to Remote UE 1 to the Relay UE through RRC signaling on the sidelink interface between Remote UE 2 and Relay UE:

[0273] For the sidelink interface QoS parameters related to the sidelink interface logical channel (such as PDB and PER), the QoS parameters can be carried in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the direction of Relay UE to Remote UE 1;

[0274] For the sidelink interface QoS parameters related to the UE (such as PC5LINK-AMBR), the QoS parameters can be carried through a newly added information element IE or field in the RRC signaling.

[0275] Step 1002, the Relay UE determines the QoS parameters used by the sidelink interface in the direction of Relay UE to Remote UE 1.

[0276] Specifically, the Relay UE can determine the QoS parameters used by the sidelink interface in the direction of Relay UE to Remote UE 1 according to the indication of Remote UE 2 in step 1001.

[0277] Step 1003, Remote UE 2 informs Remote UE 1 of the QoS parameters used by the sidelink interface in the direction of Remote UE 1 to Relay UE.

[0278] In this step, Remote UE 2 needs to inform the QoS parameters used by the sidelink interface in the direction of Remote UE 1 to Relay UE to Remote UE 1 through end-to-end RRC signaling between Remote UE 2 and Remote UE 1:

[0279] For the sidelink interface QoS parameters related to the sidelink interface logical channel (such as PDB and PER), the QoS parameters can be carried in the sidelink interface logical channel configuration information (such as sl-MAC-LogicalChannelConfig) in the direction of Remote UE 1 to Relay UE;

[0280] For sidelink interface QoS parameters related to Remote UE 1 (such as PC5LINK-AMBR), the QoS parameters can be carried by a newly added information element (IE) or field in RRC signaling.

[0281] Step 1004, Remote UE 1 determines the QoS parameters used by the sidelink interface in the direction from Remote UE 1 to Relay UE.

[0282] Specifically, Remote UE 1 can determine the QoS parameters used by the sidelink interface in the direction from Remote UE 1 to Relay UE according to the indication of Remote UE 2 in step 1003.

[0283] It should be noted that in the embodiment, steps 1001-1002 and steps 1003-1004 do not have a strict order, and steps 1001-1002 can be performed first, and then steps 1003-1004 can be performed, or steps 1003-1004 can be performed first, and then steps 1001-1002 can be performed.

[0284] In the embodiment, steps 1001-1002 and steps 1003-1004 can be optional, for example, if there is only a data transmission requirement in the direction from Remote UE 1 to Remote UE 2, only steps 1003-1004 can be performed; if there is only a data transmission requirement in the direction from Remote UE 2 to Remote UE 1, only steps 1001-1002 can be performed.

[0285] Optionally, in the embodiment, the premise for performing steps 1001-1002 is that Relay UE uses a terminal self-selected resource allocation mode on the sidelink interface; and the premise for performing steps 1003-1004 is that Remote UE 1 uses a terminal self-selected resource allocation mode on the sidelink interface.

[0286] The method and device provided by each embodiment of the application are based on the same application concept. Since the principles of the method and device for solving problems are similar, the device and the method can be referred to each other for implementation, and the repeated parts will not be described again.

[0287] Figure 11 The structure diagram of the QoS management node provided by the embodiments of the application is shown in FIG. 11. Figure 11 As shown in FIG. 11, the QoS management node includes a memory 1120, a transceiver 1110, and a processor 1100; wherein the processor 1100 and the memory 1120 can also be arranged physically separately.

[0288] a memory 1120 for storing computer programs; and a transceiver 1110 for transceiving data under control of the processor 1100.

[0289] In particular, the transceiver 1110 is configured to receive and send data under control of the processor 1100.

[0290] wherein, in the case of Figure 11 The bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, including the processor(s) 1100 and the memory 1120 represented by the various circuits of the processor 1100. The bus architecture can also link various other circuits together, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus, will not be further described. The bus interface provides an interface to the bus architecture. The transceiver 1110 can be a plurality of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including a wireless channel, a wired channel, an optical fiber cable, and the like.

[0291] The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 in executing operations.

[0292] The processor 1100 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0293] The processor 1100, by invoking the computer programs stored in the memory 1120, is configured to perform any of the methods provided by the embodiments of the present application according to the executable instructions obtained, for example: determining a QoS parameter used by a sidelink interface of a direct communication link in a target transmission direction between a relay terminal and a target communication peer of a QoS management node; and sending the QoS parameter to the relay terminal and / or the target communication peer.

[0294] Optionally, for the UE-to-Network Relay scenario, the QoS management node is for a network device; and the sending the QoS parameter to the relay terminal and / or the target communication peer includes at least one of: sending, to the relay terminal, a QoS parameter used by a sidelink interface in a downlink transmission direction; and sending, to the target communication peer, a QoS parameter used by the sidelink interface in an uplink transmission direction.

[0295] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the downlink transmission direction includes: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the downlink transmission direction via radio resource control (RRC) signaling over a Uu interface between the network device and the relay terminal.

[0296] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the downlink transmission direction via the RRC signaling over the Uu interface between the network device and the relay terminal includes at least one of: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the downlink transmission direction and sending the first sidelink interface QoS parameter to the relay terminal; and if the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or the relay terminal, adding an information element or a field in the RRC signaling and carrying the second sidelink interface QoS parameter in the added information element or field and sending the second sidelink interface QoS parameter to the relay terminal.

[0297] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the uplink transmission direction includes: sending, to the target communication peer, the QoS parameter used by the sidelink interface in the uplink transmission direction via end-to-end RRC signaling between the network device and the target communication peer.

[0298] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal comprises: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal through RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

[0299] Optionally, for the UE-to-UE Relay scenario, the QoS management node is for a sending terminal in any sidelink transmission direction; and the sending the QoS parameter to the relay terminal and / or the target communication peer comprises: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal.

[0300] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal comprises: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal through RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

[0301] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal comprises: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal through RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

[0302] Optionally, for the UE-to-UE Relay scenario, the QoS management node is for any remote terminal communicating through the UE-to-UE Relay; the sending the QoS parameter to the relay terminal and / or the target communication peer includes at least one of: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal; sending the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer.

[0303] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal includes: sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal through RRC signaling over the sidelink interface between the remote terminal and the relay terminal.

[0304] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal includes at least one of: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer and sending the first sidelink interface QoS parameter to the relay terminal; if the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, adding an information element or a field in the RRC signaling and carrying the second sidelink interface QoS parameter in the added information element or field and sending the second sidelink interface QoS parameter to the relay terminal.

[0305] Optionally, the sending the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer includes: sending the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer through end-to-end RRC signaling between the remote terminal and the target communication peer.

[0306] Optionally, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal is sent to the target communication peer through end-to-end RRC signaling between the remote terminal and the target communication peer, including at least one of the following: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, the first sidelink interface QoS parameter is carried in sidelink interface logical channel configuration information in the transmission direction from the target communication peer to the relay terminal and sent to the target communication peer; if the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, an information unit or domain is added in the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the added information unit or domain and sent to the target communication peer.

[0307] Optionally, the QoS parameter includes but is not limited to any one or a combination of the following: data packet delay budget; data packet block error rate; PC5 link aggregation maximum bit rate.

[0308] Figure 12 A structure schematic diagram of the relay terminal provided by the embodiment of the present application is shown in Figure 12 The relay terminal includes a memory 1220, a transceiver 1210 and a processor 1200; wherein the processor 1200 and the memory 1220 can also be arranged physically separately.

[0309] The memory 1220 is used for storing a computer program; the transceiver 1210 is used for receiving and sending data under the control of the processor 1200.

[0310] Specifically, the transceiver 1210 is used for receiving and sending data under the control of the processor 1200.

[0311] Wherein, in Figure 12 The bus architecture can include any number of interconnected buses and bridges, which are specifically linked together by various circuits of the processor 1200 representing one or more processors and the memory 1220 representing the memory. The bus architecture can also link various other circuits such as peripheral devices, voltage stabilizers and power management circuits, which are well known in the art, and thus the present application will not further describe them. The bus interface provides an interface. The transceiver 1210 can be a plurality of elements, i.e. including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables and other transmission media. For different user equipment, the user interface 1230 can also be an interface capable of connecting the required equipment, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0312] The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1200 when performing operations.

[0313] The processor 1200 can be a CPU, ASIC, FPGA or CPLD, and the processor can also adopt a multi-core architecture.

[0314] The processor 1200 invokes the computer program stored in the memory 1220 to execute any method provided by the embodiments of the present application according to the obtained executable instructions, for example: receiving the QoS parameter sent by the QoS management node and used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node.

[0315] Optionally, for the UE-to-Network Relay scenario, the QoS management node is a network device; and the receiving the QoS parameter sent by the QoS management node and used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node includes: receiving the QoS parameter sent by the network device and used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0316] Optionally, for the UE-to-UE Relay scenario, the QoS management node is any sidelink transmission direction sending terminal or any remote terminal for UE-to-UE Relay communication; and the receiving the QoS parameter sent by the QoS management node and used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node includes: receiving the QoS parameter sent by the QoS management node and used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer through RRC signaling on a sidelink interface between the QoS management node and the relay terminal.

[0317] Optionally, the relay terminal uses a terminal self-selected resource allocation mode on the sidelink interface.

[0318] Figure 13 The structure diagram of the target communication peer of the QoS management node provided by the embodiments of the present application is shown in Figure 13 The target communication peer of the QoS management node includes a memory 1320, a transceiver 1310 and a processor 1300; wherein the processor 1300 and the memory 1320 can also be arranged physically separately.

[0319] a memory 1320 for storing computer programs; and a transceiver 1310 for transceiving data under control of the processor 1300.

[0320] In particular, the transceiver 1310 is configured to receive and send data under control of the processor 1300.

[0321] In particular, the transceiver 1310 is configured to receive and send data under control of the processor 1300. Figure 13 In particular, the transceiver 1310 is configured to receive and send data under control of the processor 1300. The bus interface provides an interface to the bus architecture. The transceiver 1310 can be a plurality of elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other apparatuses over transmission media, including wireless channels, wired channels, optical cables, etc. The user interface 1330 can also be an interface capable of connecting external and internal required devices for different user equipment, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

[0322] The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1300 in performing operations.

[0323] The processor 1300 can be a CPU, an ASIC, an FPGA, or a CPLD, and the processor can also adopt a multi-core architecture.

[0324] The processor 1300, by invoking the computer programs stored in the memory 1320, is configured to perform any of the methods provided by the embodiments of the present application according to the executable instructions obtained, for example: receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node.

[0325] Optionally, the receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node comprises: receiving the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal sent by the QoS management node through end-to-end radio resource control (RRC) signaling between the QoS management node and the target communication peer.

[0326] Optionally, the target communication peer uses a resource allocation mode selected by the terminal on the sidelink interface.

[0327] It should be noted that the QoS management node, the relay terminal and the target communication peer of the QoS management node provided by the embodiments of the present application can implement all the method steps implemented by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0328] Figure 14 A structure diagram of a QoS parameter configuration device provided by the embodiments of the present application is shown in FIG. 6. The device is applied to a QoS management node. As shown in FIG. 6, the device comprises: Figure 14

[0329] A determining unit 1400 configured to determine a QoS parameter used by a sidelink interface in a target transmission direction between a relay terminal and a target communication peer of the QoS management node;

[0330] A sending unit 1410 configured to send the QoS parameter to the relay terminal and / or the target communication peer.

[0331] Optionally, for a UE-to-Network Relay scenario, the QoS management node is a network device; and the sending unit 1410 is configured to perform at least one of the following: send, to the relay terminal, a QoS parameter used by a sidelink interface in a downlink transmission direction; and send, to the target communication peer, a QoS parameter used by a sidelink interface in an uplink transmission direction.

[0332] Optionally, the sending, to the relay terminal, of the QoS parameter used by the sidelink interface in the downlink transmission direction comprises: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the downlink transmission direction through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0333] Optionally, the sending, to the relay terminal, of the QoS parameter used by the sidelink interface in the downlink transmission direction through the RRC signaling on the Uu interface between the network device and the relay terminal comprises at least one of the following: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the downlink transmission direction and sending the sidelink interface logical channel configuration information to the relay terminal; and if the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or the relay terminal, adding an information element or a field in the RRC signaling and carrying the second sidelink interface QoS parameter in the added information element or field and sending the second sidelink interface QoS parameter to the relay terminal.

[0334] ​Optionally, the sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer comprises: sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer through end-to-end RRC signaling between the network device and the target communication peer.

[0335] Optionally, the sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer through end-to-end RRC signaling between the network device and the target communication peer comprises at least one of the following: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the uplink transmission direction and sending the first sidelink interface QoS parameter to the target communication peer; if the QoS parameter is a second sidelink interface QoS parameter related to a remote terminal and / or a relay terminal, adding an information unit or a domain in the end-to-end RRC signaling and carrying the second sidelink interface QoS parameter in the added information unit or domain, and sending the second sidelink interface QoS parameter to the target communication peer.

[0336] Optionally, for a UE-to-UE Relay scenario, the QoS management node is a sending terminal in any sidelink transmission direction; and the sending unit 1410 is configured to: send, to the relay terminal, a QoS parameter used by a sidelink interface in a transmission direction of the relay terminal to the target communication peer.

[0337] Optionally, the sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer comprises: sending the QoS parameter used by the sidelink interface in the uplink transmission direction to the target communication peer through end-to-end RRC signaling between the network device and the target communication peer.

[0338] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer, comprises: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer through RRC signaling on the sidelink interface between the remote terminal and the relay terminal.

[0339] Optionally, for the UE-to-UE Relay scenario, the QoS management node is for any remote terminal communicating through the UE-to-UE Relay; and the sending unit 1410 is configured to perform at least one of the following: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer; and sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal.

[0340] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer, comprises: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer through RRC signaling on the sidelink interface between the remote terminal and the relay terminal.

[0341] Optionally, the sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer, comprises: sending, to the relay terminal, the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer through RRC signaling on the sidelink interface between the remote terminal and the relay terminal.

[0342] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal comprises: sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal through end-to-end RRC signaling between the remote terminal and the target communication peer.

[0343] Optionally, the sending, to the target communication peer, the QoS parameter used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal through end-to-end RRC signaling between the remote terminal and the target communication peer comprises at least one of the following: if the QoS parameter is a first sidelink interface QoS parameter related to a sidelink interface logical channel, carrying the first sidelink interface QoS parameter in sidelink interface logical channel configuration information in the transmission direction from the target communication peer to the relay terminal and sending the sidelink interface logical channel configuration information to the target communication peer; if the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, adding an information unit or a domain in the end-to-end RRC signaling and carrying the second sidelink interface QoS parameter in the added information unit or domain and sending the second sidelink interface QoS parameter to the target communication peer.

[0344] Optionally, the QoS parameter comprises but is not limited to any one or a combination of the following: data packet delay budget; data packet block error rate; PC5 link aggregation maximum bit rate.

[0345] Figure 15 A structure diagram of a QoS parameter configuration device provided by an embodiment of the present application is provided, and the device is applied to a relay terminal. Figure 15 As shown in the figure, the device comprises:

[0346] A first receiving unit 1500 is configured to receive a QoS parameter used by a sidelink interface in a transmission direction from a relay terminal to a target communication peer of a QoS management node, which is sent by the QoS management node.

[0347] Optionally, for a UE-to-Network Relay scenario, the QoS management node is a network device; and the first receiving unit 1500 is configured to receive a QoS parameter used by a sidelink interface in a transmission direction from the relay terminal to the target communication peer, which is sent by the network device through radio resource control (RRC) signaling on a Uu interface between the network device and the relay terminal.

[0348] Optionally, for the UE-to-UE Relay scenario, the QoS management node is for a transmitting terminal in any sidelink transmission direction or any remote terminal communicating through the UE-to-UE Relay; the first receiving unit 1500 is configured to receive, through RRC signaling on a sidelink interface between the QoS management node and the relay terminal, QoS parameters for the sidelink interface in a transmission direction from the relay terminal to a target communication peer sent by the QoS management node.

[0349] Optionally, the relay terminal uses a terminal self-selected resource allocation mode on the sidelink interface.

[0350] Figure 16 A third structure diagram of a QoS parameter configuration device provided by an embodiment of the application is provided, and the device is applied to a target communication peer of a QoS management node, as shown in the figure, the device comprises: Figure 16

[0351] The second receiving unit 1600 is configured to receive, through end-to-end radio resource control (RRC) signaling between the QoS management node and the target communication peer, QoS parameters for a sidelink interface in a transmission direction from the target communication peer to the relay terminal sent by the QoS management node.

[0352] Optionally, the second receiving unit 1600 is configured to receive, through end-to-end radio resource control (RRC) signaling between the QoS management node and the target communication peer, QoS parameters for a sidelink interface in a transmission direction from the target communication peer to the relay terminal sent by the QoS management node.

[0353] Optionally, the target communication peer uses a terminal self-selected resource allocation mode on the sidelink interface.

[0354] It should be noted that the division of units in the embodiments of the application is illustrative, and is merely a logical function division. In actual implementation, another division mode can be used. In addition, each functional unit in each embodiment of the application can be integrated in one processing unit, or each unit can be physically present alone, or two or more units can be integrated in one unit. The integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0355] ​The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a processor-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0356] It should be noted that the above-mentioned device provided by the embodiments of the present application can realize all the method steps realized by the above-mentioned method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0357] On the other hand, the embodiments of the present application also provide a processor-readable storage medium, which stores a computer program for causing the processor to execute the QoS parameter configuration method provided by the above-mentioned embodiments, including: determining the QoS parameter used by the sidelink interface in the target transmission direction between the relay terminal and the target communication peer of the QoS management node; and sending the QoS parameter to the relay terminal and / or the target communication peer.

[0358] On the other hand, the embodiments of the present application also provide a processor-readable storage medium, which stores a computer program for causing the processor to execute the QoS parameter configuration method provided by the above-mentioned embodiments, including: receiving the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node sent by the QoS management node.

[0359] On the other hand, the embodiments of the present application also provide a processor-readable storage medium, which stores a computer program for causing the processor to execute the QoS parameter configuration method provided by the above-mentioned embodiments, including: receiving the QoS parameter used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node sent by the QoS management node.

[0360] The processor-readable storage medium can be any available medium or data storage that can be accessed by a processor including, but not limited to, magnetic storage (e.g., diskette, hard drive, tape, MO, etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, NAND FLASH, SSD, etc.), etc.

[0361] The technical solutions provided by the embodiments of the present application can be applied to various systems, especially 5G systems. For example, the applicable systems can be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, etc. These various systems all include terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0362] The terminal referred to in the embodiments of the present application can refer to a device that provides voice and / or data connectivity to a user, a handheld device having wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal can also be different, for example, in the 5G system, the terminal can be called a user equipment (UE). The wireless terminal device can communicate with one or more core networks (CN) through a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone) and a computer with a mobile terminal device, for example, it can be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present application.

[0363] The network device according to embodiments of the present application can be a base station, which can include a plurality of cells serving terminals. Depending on the specific application, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices over an air interface through one or more sectors, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device according to embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a next generation system, or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which are not limited in embodiments of the present application. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0364] The network device and the terminal can each use one or more antennas for Multi Input Multi Output (MIMO) transmission, which can be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). Depending on the shape and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or can be diversity transmission or precoding transmission or beamforming transmission, etc.

[0365] Those skilled in the art will appreciate that embodiments of the present application can be readily used as software, hardware, or a combination of software and hardware. In one

[0366] The present application is described in reference to the flowchart illustrations and / or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer executable instructions. The computer executable instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0367] These computer executable instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0368] These computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions executed on the computer or other programmable apparatus provide operations for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks.

[0369] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A method for configuring Quality of Service (QoS) parameters, characterized in that, Applied to QoS management nodes, including: Determine the QoS parameters used by the sidelink interface of the direct communication link in the target transmission direction between the relay terminal and the target communication peer of the QoS management node; Send the QoS parameters to the relay terminal and / or the target communication peer. If the QoS parameter is a first sidelink interface QoS parameter related to the direct communication link interface logical channel, then the first sidelink interface QoS parameter is carried in the direct communication link interface logical channel configuration information and sent to the relay terminal and / or the target communication peer. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent to the relay terminal and / or the target communication peer. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

2. The QoS parameter configuration method according to claim 1, characterized in that, In the UE-to-Network Relay scenario, the QoS management node is a network device; Sending the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following: Send the QoS parameters used by the sidelink interface in the downlink transmission direction to the relay terminal; Send the QoS parameters used by the sidelink interface in the uplink transmission direction to the target communication peer.

3. The QoS parameter configuration method according to claim 2, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the downlink transmission direction to the relay terminal includes: The QoS parameters used by the sidelink interface in the downlink transmission direction are sent to the relay terminal via Radio Resource Control (RRC) signaling on the Uu interface between the network device and the relay terminal.

4. The QoS parameter configuration method according to claim 3, characterized in that, Sending QoS parameters for the downlink sidelink interface to the relay terminal via RRC signaling on the Uu interface between the network device and the relay terminal includes at least one of the following: If the QoS parameter is a first sidelink interface QoS parameter related to the sidelink interface logical channel, then the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the downlink transmission direction and sent to the relay terminal. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the new information element or field and sent to the relay terminal.

5. The QoS parameter configuration method according to claim 2, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the uplink transmission direction to the target communication peer includes: The QoS parameters used by the sidelink interface in the uplink transmission direction are sent to the target communication peer via end-to-end RRC signaling between the network device and the target communication peer.

6. The QoS parameter configuration method according to claim 5, characterized in that, Sending QoS parameters for the sidelink interface in the uplink transmission direction to the target communication peer via end-to-end RRC signaling between the network device and the target communication peer includes at least one of the following: If the QoS parameter is a first sidelink interface QoS parameter related to the sidelink interface logical channel, then the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the uplink transmission direction and sent to the target communication peer. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the new information element or field and sent to the target communication peer.

7. The QoS parameter configuration method according to claim 1, characterized in that, In the UE-to-UE Relay scenario, the QoS management node is the transmitting terminal in any sidelink transmission direction; Sending the QoS parameters to the relay terminal and / or the target communication peer includes: Send the QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal.

8. The QoS parameter configuration method according to claim 7, characterized in that, The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal, including: The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal via RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

9. The QoS parameter configuration method according to claim 8, characterized in that, The step of sending QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal via RRC signaling on the sidelink interface between the transmitting terminal and the relay terminal includes at least one of the following: If the QoS parameter is a first sidelink interface QoS parameter related to the sidelink interface logical channel, then the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer and sent to the relay terminal. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the new information element or field and sent to the relay terminal.

10. The QoS parameter configuration method according to claim 1, characterized in that, In the UE-to-UE Relay scenario, the QoS management node is any remote terminal communicating via UE-to-UE Relay; Sending the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following: Send the QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal; Send the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer.

11. The QoS parameter configuration method according to claim 10, characterized in that, The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal, including: The QoS parameters used by the sidelink interface in the transmission direction from the remote terminal to the target communication peer are sent to the relay terminal via RRC signaling on the sidelink interface between the remote terminal and the relay terminal.

12. The QoS parameter configuration method according to claim 11, characterized in that, The step of sending QoS parameters used by the sidelink interface in the transmission direction from the remote terminal to the target communication peer to the relay terminal via RRC signaling on the sidelink interface between the remote terminal and the relay terminal includes at least one of the following: If the QoS parameter is a first sidelink interface QoS parameter related to the sidelink interface logical channel, then the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the transmission direction from the relay terminal to the target communication peer and sent to the relay terminal. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the new information element or field and sent to the relay terminal.

13. The QoS parameter configuration method according to claim 10, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer includes: The remote terminal sends the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer via end-to-end RRC signaling between the remote terminal and the target communication peer.

14. The QoS parameter configuration method according to claim 13, characterized in that, Sending QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer via end-to-end RRC signaling between the remote terminal and the target communication peer includes at least one of the following: If the QoS parameter is a first sidelink interface QoS parameter related to the sidelink interface logical channel, then the first sidelink interface QoS parameter is carried in the sidelink interface logical channel configuration information in the transmission direction from the target communication peer to the relay terminal and sent to the target communication peer. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the end-to-end RRC signaling, and the second sidelink interface QoS parameter is carried in the new information element or field and sent to the target communication peer.

15. The QoS parameter configuration method according to any one of claims 1-14, characterized in that, The QoS parameters include, but are not limited to, any one or a combination of the following: Data packet latency budget; Packet error rate; PC5 link aggregation maximum bit rate.

16. A method for configuring Quality of Service (QoS) parameters, characterized in that, Applications in relay terminals include: The QoS parameters used by the sidelink interface of the direct communication link in the transmission direction from the relay terminal to the target communication peer of the QoS management node are received from the QoS management node. Wherein, if the QoS parameter is the first sidelink interface QoS parameter related to the direct communication link interface logical channel, the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

17. The QoS parameter configuration method according to claim 16, characterized in that, In the UE-to-Network Relay scenario, the QoS management node is a network device; The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node, sent by the receiving QoS management node, include: The network device receives QoS parameters for the sidelink interface used in the transmission direction from the relay terminal to the target communication peer via Radio Resource Control (RRC) signaling on the Uu interface between the network device and the relay terminal.

18. The QoS parameter configuration method according to claim 16, characterized in that, In the UE-to-UE Relay scenario, the QoS management node is either a sending terminal in any sidelink transmission direction or any remote terminal communicating via UE-to-UE Relay. The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer of the QoS management node, sent by the receiving QoS management node, include: The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are received by the QoS management node via RRC signaling on the sidelink interface between the QoS management node and the relay terminal.

19. The QoS parameter configuration method according to any one of claims 16-18, characterized in that, The relay terminal uses a resource allocation method selected by the terminal on the sidelink interface.

20. A method for configuring Quality of Service (QoS) parameters, characterized in that, The target communication peers applied to the QoS management node include: Receive the QoS parameters used by the sidelink interface of the direct communication link in the transmission direction from the target communication peer to the relay terminal, sent by the QoS management node. Wherein, if the QoS parameter is the first sidelink interface QoS parameter related to the direct communication link interface logical channel, the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

21. The QoS parameter configuration method according to claim 20, characterized in that, The QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal, received from the QoS management node, include: The QoS management node receives QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal via end-to-end Radio Resource Control (RRC) signaling between the QoS management node and the target communication peer.

22. The QoS parameter configuration method according to claim 20 or 21, characterized in that, The target communication peer uses a terminal-selected resource allocation method on the sidelink interface.

23. A Quality of Service (QoS) management node, comprising a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Determine the QoS parameters used by the sidelink interface of the direct communication link in the target transmission direction between the relay terminal and the target communication peer of the QoS management node; Send the QoS parameters to the relay terminal and / or the target communication peer. in, If the QoS parameter is a first sidelink interface QoS parameter related to the direct communication link interface logical channel, then the first sidelink interface QoS parameter is carried in the direct communication link interface logical channel configuration information and sent to the relay terminal and / or the target communication peer. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent to the relay terminal and / or the target communication peer. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

24. The QoS management node according to claim 23, characterized in that, In the UE-to-Network Relay scenario, the QoS management node is a network device; Sending the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following: Send the QoS parameters used by the sidelink interface in the downlink transmission direction to the relay terminal; Send the QoS parameters used by the sidelink interface in the uplink transmission direction to the target communication peer.

25. The QoS management node according to claim 24, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the downlink transmission direction to the relay terminal includes: The QoS parameters used by the sidelink interface in the downlink transmission direction are sent to the relay terminal via Radio Resource Control (RRC) signaling on the Uu interface between the network device and the relay terminal.

26. The QoS management node according to claim 24, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the uplink transmission direction to the target communication peer includes: The QoS parameters used by the sidelink interface in the uplink transmission direction are sent to the target communication peer via end-to-end RRC signaling between the network device and the target communication peer.

27. The QoS management node according to claim 23, characterized in that, In the UE-to-UE Relay scenario, the QoS management node is the transmitting terminal in any sidelink transmission direction; Sending the QoS parameters to the relay terminal and / or the target communication peer includes: Send the QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal.

28. The QoS management node according to claim 27, characterized in that, The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal, including: The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal via RRC signaling on the sidelink interface between the sending terminal and the relay terminal.

29. The QoS management node according to claim 23, characterized in that, In the UE-to-UE Relay scenario, the QoS management node is any remote terminal communicating via UE-to-UE Relay; Sending the QoS parameters to the relay terminal and / or the target communication peer includes at least one of the following: Send the QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer to the relay terminal; Send the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer.

30. The QoS management node according to claim 29, characterized in that, The QoS parameters used by the sidelink interface in the transmission direction from the relay terminal to the target communication peer are sent to the relay terminal, including: The QoS parameters used by the sidelink interface in the transmission direction from the remote terminal to the target communication peer are sent to the relay terminal via RRC signaling on the sidelink interface between the remote terminal and the relay terminal.

31. The QoS management node according to claim 29, characterized in that, The step of sending the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer includes: The remote terminal sends the QoS parameters used by the sidelink interface in the transmission direction from the target communication peer to the relay terminal to the target communication peer via end-to-end RRC signaling between the remote terminal and the target communication peer.

32. A relay terminal, comprising a memory, a transceiver, and a processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: The QoS parameters used by the sidelink interface of the direct communication link in the transmission direction from the relay terminal to the target communication peer of the QoS management node are received from the QoS management node. in, If the QoS parameter is a first sidelink interface QoS parameter related to the direct communication link interface logical channel, then the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

33. A target communication peer of a Quality of Service (QoS) management node, comprising a memory, a transceiver, and a processor: Memory, used to store computer programs; The transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations: Receive the QoS parameters used by the sidelink interface of the direct communication link in the transmission direction from the target communication peer to the relay terminal, sent by the QoS management node. Wherein, if the QoS parameter is the first sidelink interface QoS parameter related to the direct communication link interface logical channel, the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

34. A QoS parameter configuration device, characterized in that, Applied to QoS management nodes, including: The determining unit is used to determine the QoS parameters used by the sidelink interface of the direct communication link in the target transmission direction between the relay terminal and the target communication peer of the QoS management node. The sending unit is configured to send the QoS parameters to the relay terminal and / or the target communication peer. If the QoS parameter is a first sidelink interface QoS parameter related to the direct communication link interface logical channel, then the first sidelink interface QoS parameter is carried in the direct communication link interface logical channel configuration information and sent to the relay terminal and / or the target communication peer. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or the relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent to the relay terminal and / or the target communication peer. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

35. A QoS parameter configuration device, characterized in that, Applications in relay terminals include: The first receiving unit is configured to receive QoS parameters sent by the QoS management node for the sidelink interface of the direct communication link in the transmission direction from the relay terminal to the target communication peer of the QoS management node. Wherein, if the QoS parameter is the first sidelink interface QoS parameter related to the direct communication link interface logical channel, the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

36. A Quality of Service (QoS) parameter configuration device, characterized in that, The target communication peers applied to the QoS management node include: The second receiving unit is used to receive the QoS parameters used by the sidelink interface of the direct communication link in the transmission direction from the target communication peer to the relay terminal, sent by the QoS management node. Wherein, if the QoS parameter is the first sidelink interface QoS parameter related to the direct communication link interface logical channel, the first sidelink interface QoS parameter is sent in the direct communication link interface logical channel configuration information. If the QoS parameter is a second sidelink interface QoS parameter related to the remote terminal and / or relay terminal, then a new information element or field is added to the RRC signaling, and the second sidelink interface QoS parameter is carried in the newly added information element or field and sent. The first sidelink interface QoS parameters include packet delay budget and / or packet block error rate, and the second sidelink interface QoS parameters include PC5 link aggregation maximum bit rate.

37. A processor-readable storage medium, characterized in that, The processor-readable storage medium stores a computer program that causes the processor to perform the method according to any one of claims 1 to 15, or the method according to any one of claims 16 to 19, or the method according to any one of claims 20 to 22.

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