Data transmission method and apparatus, and terminal, network-side device and storage medium

Abstract

Provided in the embodiments of the present disclosure are a data transmission method and apparatus, and a terminal, a network-side device and a storage medium. The data transmission method comprises: receiving first information, wherein the first information is used for configuring an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel (Egress PC5RLC channel) corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between a remote terminal and a network-side device when same is subjected to SRB and / or DRB transmission by means of the relay terminal; and on the basis of the first information, performing end-to-end SRB and / or DRB data transmission by means of a multi-hop relay link, wherein the multi-hop relay link comprises the at least one relay terminal.

Description

Data transmission method, device, terminal, network side equipment and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410175406.7, filed on February 7, 2024, entitled “Data transmission method, device, terminal, network side equipment and storage medium”, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a data transmission method, apparatus, terminal, network-side equipment, and storage medium. Background Art

[0004] To expand network coverage, one solution is to introduce a UE-to-Network Relay (relay). A relay is a terminal with relay functionality. The interface between the relay and the network uses the Uu interface, and the relay uses a direct communication interface (also known as the PC5 interface) with the relayed terminal (also known as the remote terminal).

[0005] In related technologies, one-hop relay can be used to achieve data transmission. However, in some special scenarios, such as when the entire communication network is paralyzed, remote terminals in deep coverage blind spots cannot communicate. Summary of the Invention

[0006] The embodiments of the present disclosure provide a data transmission method, apparatus, terminal, network-side equipment, and storage medium, for solving the problem of remote terminals in deep coverage blind spots being unable to communicate.

[0007] In a first aspect, an embodiment of the present disclosure provides a data transmission method, applied to a remote terminal, the method comprising:

[0008] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when SRB and / or DRB transmission is performed through the relay terminal;

[0009] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0010] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the at least one relay terminal includes at least one of the following:

[0011] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0012] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0013] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0014] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the receiving of the first information includes at least one of the following:

[0015] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0016] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0017] First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

[0018] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes:

[0019] Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following:

[0020] The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal;

[0021] The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0022] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes:

[0023] Determine a relay terminal used by each hop on the multi-hop relay link.

[0024] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes:

[0025] Sending, to the first relay terminal, an identifier of a relay terminal used by each hop on the multi-hop relay link.

[0026] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0027] The SRAP configuration information includes at least one or more of the following:

[0028] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0029] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes at least one or more of the following:

[0030] The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal;

[0031] The SRAP configuration information includes at least one or more of the following:

[0032] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0033] In a second aspect, an embodiment of the present disclosure provides a data transmission method, applied to a network-side device, the method comprising:

[0034] Sending first information; wherein the first information is used to configure the identifier of at least one relay terminal, and the egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when performing SRB and / or DRB transmission through the relay terminal;

[0035] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0036] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the at least one relay terminal includes at least one of the following:

[0037] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0038] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0039] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0040] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes:

[0041] receiving second information from the first relay terminal;

[0042] The second information includes one or more of the following:

[0043] an identifier of the remote terminal;

[0044] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link;

[0045] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

[0046] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes:

[0047] Do one or more of the following:

[0048] Determining that the remote terminal accesses the network-side device using a multi-hop relay link;

[0049] Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

[0050] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the method further includes one or more of the following:

[0051] Sending the first information to the first relay terminal;

[0052] Sending the first information to each relay terminal on the relay link;

[0053] Sending first information to the remote terminal.

[0054] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0055] The SRAP configuration information includes at least one or more of the following:

[0056] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0057] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes at least one or more of the following:

[0058] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0059] The SRAP configuration information includes at least one or more of the following:

[0060] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0061] In a third aspect, an embodiment of the present disclosure provides a data transmission method, applied to a relay terminal, the method comprising:

[0062] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0063] According to the first information, data is forwarded for the end-to-end SRB and / or DRB of the remote terminal.

[0064] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the relay terminal includes at least one of the following:

[0065] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0066] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0067] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0068] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, the receiving of the first information includes at least one of the following:

[0069] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0070] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0071] receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal;

[0072] First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

[0073] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the method further includes: determining a relay terminal for each hop on a multi-hop relay link corresponding to the remote terminal.

[0074] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, determining the relay terminal of each hop on the relay link includes one or more of the following:

[0075] Select a relay terminal for each hop on the relay link;

[0076] receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link;

[0077] Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

[0078] In some embodiments, according to the data transmission method of one embodiment of the present disclosure, if the relay terminal is a first relay terminal, the method further includes:

[0079] Sending second information to the network side device;

[0080] The second information includes one or more of the following:

[0081] an identifier of the remote terminal;

[0082] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay;

[0083] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

[0084] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0085] The SRAP configuration information includes at least one or more of the following:

[0086] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0087] In some embodiments, according to a data transmission method according to an embodiment of the present disclosure, the first information includes at least one or more of the following:

[0088] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0089] The SRAP configuration information includes at least one or more of the following:

[0090] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0091] In a fourth aspect, an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor:

[0092] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0093] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when SRB and / or DRB transmission is performed through the relay terminal;

[0094] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0095] In a fifth aspect, an embodiment of the present disclosure further provides a network-side device, including a memory, a transceiver, and a processor:

[0096] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0097] Sending first information; wherein the first information is used to configure the identifier of at least one relay terminal, and the egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when performing SRB and / or DRB transmission through the relay terminal;

[0098] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0099] In a sixth aspect, an embodiment of the present disclosure further provides a terminal, including a memory, a transceiver, and a processor:

[0100] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0101] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0102] According to the first information, data is forwarded for the end-to-end SRB and / or DRB of the remote terminal.

[0103] In a seventh aspect, an embodiment of the present disclosure further provides a data transmission device, applied to a remote terminal, the device comprising:

[0104] A first receiving module is configured to receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal;

[0105] A first transmission module is configured to perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, where the multi-hop relay link includes the at least one relay terminal.

[0106] In an eighth aspect, an embodiment of the present disclosure further provides a data transmission device, applied to a network-side device, the device comprising:

[0107] A first sending module is configured to send first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when performing SRB and / or DRB transmission through the relay terminal;

[0108] The second transmission module is used to perform end-to-end SRB and / or DRB data transmission through a multi-hop relay link according to the first information, and the multi-hop relay link includes the at least one relay terminal.

[0109] In a ninth aspect, an embodiment of the present disclosure further provides a data transmission device, applied to a first relay terminal, the device comprising:

[0110] A second receiving module is configured to receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0111] The third transmission module is used to forward data to the end-to-end SRB and / or DRB of the remote terminal according to the first information.

[0112] In the tenth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the data transmission method described in the first aspect as described above.

[0113] In the eleventh aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the data transmission method described in the second aspect as described above.

[0114] In the thirteenth aspect, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the data transmission method described in the third aspect above.

[0115] The data transmission method, apparatus, terminal, network-side device, and storage medium provided by the embodiments of the present disclosure can ensure that for a remote terminal that needs to access a network-side device via a multi-hop relay link, the network-side device configures a suitable Egress PC5 RLC channel for each hop on the multi-hop link, thereby ensuring that data can be transmitted between the remote terminal and the network-side device via a multi-hop relay method, thereby solving the problem of remote terminals in deep coverage blind spots being unable to communicate. BRIEF DESCRIPTION OF THE DRAWINGS

[0116] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0117] FIG1 is a schematic diagram of a communication method of network centralized control in an LTE system provided by related art;

[0118] FIG2 is a schematic diagram of direct communication provided by the related art;

[0119] FIG3 is a schematic diagram of UE-to-Network Relay communication provided by the related art;

[0120] FIG4 is a schematic diagram of multi-hop UE-to-Network Relay communication provided by the related art;

[0121] FIG5 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

[0122] FIG6 is a second flow chart of a data transmission method according to an embodiment of the present disclosure;

[0123] FIG7 is a third flow chart of a data transmission method provided by an embodiment of the present disclosure;

[0124] FIG8 is a schematic diagram of data transmission according to an embodiment of the present disclosure;

[0125] FIG9 is a second schematic diagram of data transmission provided by an embodiment of the present disclosure;

[0126] FIG10 is a third schematic diagram of data transmission provided by an embodiment of the present disclosure;

[0127] FIG11 is a fourth schematic diagram of data transmission provided by an embodiment of the present disclosure;

[0128] FIG12 is a schematic diagram of a structure of a terminal according to an embodiment of the present disclosure;

[0129] FIG13 is a schematic structural diagram of a network-side device provided in an embodiment of the present disclosure;

[0130] FIG14 is a second schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure;

[0131] FIG15 is a schematic diagram of a structure of a data transmission device according to an embodiment of the present disclosure;

[0132] FIG16 is a second structural diagram of the data transmission device provided in an embodiment of the present disclosure;

[0133] FIG17 is a third structural diagram of the data transmission device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0134] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0135] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0136] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0137] The technical solution provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may 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 systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new air interface (NR) systems, etc. These various systems include terminal devices and network side devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0138] First, let’s introduce the following contents:

[0139] (1) Cellular network communication;

[0140] Figure 1 is a schematic diagram of the network-centrally controlled communication mode in the LTE system provided by the relevant technology. As shown in Figure 1, traditional wireless communication adopts a cellular network communication mode, that is, the terminal and the network side device transmit uplink and downlink data / control information through the Uu interface.

[0141] (2) Direct communication;

[0142] Figure 2 is a schematic diagram of direct communication provided by related art. As shown in Figure 2 , direct communication refers to a method by which adjacent terminals can transmit data over a short distance via a direct communication link (also known as a Sidelink, PC5, or bypass). The wireless interface corresponding to the Sidelink link is called a direct communication interface (also known as a Sidelink interface, PC5 interface, or bypass interface).

[0143] (3) Relay;

[0144] Figure 3 is a schematic diagram of UE-to-Network Relay communication provided by related art. As shown in Figure 3, in order to expand network coverage, it is possible to consider introducing a relay. The relay itself can be a terminal with relay functionality. For UE-to-Network Relay, the interface between the relay and the network uses the Uu interface, and the interface between the relay and the relayed terminal (referred to as the remote terminal in the patent) uses the Sidelink interface (also known as a direct communication interface, bypass interface, or PC5 interface).

[0145] FIG4 is a schematic diagram of multi-hop UE-to-Network Relay communication provided by the related art. As shown in FIG4 , if the remote UE cannot connect to the network through one U2N Relay, then a multi-hop U2N Relay needs to be considered.

[0146] However, there is no solution for how to achieve end-to-end communication between remote terminals and network-side devices in a multi-hop U2N Relay scenario.

[0147] The embodiments of the present disclosure provide a data transmission method, apparatus, terminal, network-side equipment, and storage medium for solving the problem of remote terminals in deep coverage blind spots being unable to communicate.

[0148] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0149] FIG5 is a flow chart of a data transmission method according to an embodiment of the present disclosure. As shown in FIG5 , the data transmission method is applied to a remote terminal. The method includes the following steps:

[0150] Step 500: Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal and an egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between the remote terminal and the network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0151] Step 510: Perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, wherein the multi-hop relay link includes the at least one relay terminal.

[0152] Specifically, the remote terminal can receive first information from the network side device, wherein the first information is used to configure the end-to-end SRB (Signaling Radio Bearer) and / or DRB (Data Radio Bearer) between the remote terminal and the network side device, the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission, and the corresponding exit PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0153] In some embodiments, after determining the first information, the network-side device may further perform at least one of the following:

[0154] (1) The network side equipment configures the relay terminal at each hop;

[0155] (2) The network-side device configures the first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal configures the first relay terminal to each other relay terminal and / or the remote terminal used by the remote terminal to access the network;

[0156] (3) The network side device is configured to the first relay terminal that is directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0157] The data transmission method provided by the embodiments of the present disclosure can ensure that for a remote terminal that needs to access a network-side device through a multi-hop relay link, the network-side device configures a suitable Egress PC5 RLC channel for each hop on the multi-hop link, thereby ensuring that data can be transmitted between the remote terminal and the network-side device through a multi-hop relay method, solving the problem of remote terminals in deep coverage blind spots being unable to communicate.

[0158] In some embodiments, the at least one relay terminal includes at least one of the following:

[0159] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0160] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0161] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0162] In some embodiments, the relay link includes the at least one relay terminal and a first relay terminal, and the first relay terminal is a relay terminal directly connected to the network-side device.

[0163] In some embodiments, the first information is used to configure the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission for the end-to-end SRB and / or DRB between the remote terminal and the network side device, wherein the relay terminal is all or part of the relay terminals used when the remote terminal accesses the network side device through multi-hop, for example, the first relay terminal on the multi-hop link that is directly connected to the network side device may not be included.

[0164] In some embodiments, the receiving of the first information includes at least one of the following:

[0165] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0166] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0167] First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

[0168] In some embodiments, after determining the first information, the network-side device may perform at least one of the following:

[0169] (1) Configured by network-side equipment to the remote terminal;

[0170] (2) The network-side device configures the relay terminal for each hop, and the first or second relay terminal sends the message to the remote terminal;

[0171] (3) The network-side device configures the first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal configures the first relay terminal to each other relay terminal and / or the remote terminal used by the remote terminal to access the network;

[0172] (4) The network-side device is configured to the first relay terminal that is directly connected to the network-side device on the multi-hop link, and then the first relay terminal is configured to the next-hop relay terminal, and then the next-hop relay terminal is configured to the next-hop relay terminal, and so on, until it is configured to the remote terminal.

[0173] In some embodiments, the method further comprises:

[0174] Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following:

[0175] The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal;

[0176] The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0177] In some embodiments, the remote terminal may also send direct communication interface configuration information to the at least one relay terminal, the direct communication interface configuration information including: identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB is transmitted through the relay terminal.

[0178] In some embodiments, the remote terminal may also send direct communication interface configuration information to the at least one relay terminal, the direct communication interface configuration information including: the identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0179] In some embodiments, the method further comprises:

[0180] Determine a relay terminal used by each hop on the multi-hop relay link.

[0181] Specifically, a method for determining the relay terminal used by the remote terminal when accessing the network through multi-hop may include any of the following:

[0182] (1) The remote terminal selects a relay terminal for each hop in a multi-hop relay scenario;

[0183] (2) Each hop node (which can be a remote terminal or a relay terminal) in a multi-hop scenario selects the previous hop relay terminal to be used; each hop relay needs to notify the first relay terminal on the multi-hop link that is directly connected to the network-side device of its own identification information or its own identification information and the identification information of the previous hop relay terminal; after the selection is completed, the first relay terminal can inform the remote terminal, or the remote terminal can be informed through the relay terminal in the multi-hop relay link.

[0184] (3) A first relay terminal directly connected to a network-side device on the multi-hop link selects a relay terminal to be used for each hop when the remote terminal accesses the network; after the selection is completed, the remote terminal may be informed by the first relay terminal or through a relay terminal in the multi-hop relay link.

[0185] In some embodiments, the method further comprises:

[0186] Sending, to the first relay terminal, an identifier of a relay terminal used by each hop on the multi-hop relay link.

[0187] Specifically, after the remote terminal selects a relay terminal for each hop in the multi-hop relay scenario, the remote terminal needs to notify the first relay terminal directly connected to the network-side device on the multi-hop link of the relay terminal selected for each hop.

[0188] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0189] The SRAP configuration information includes at least one or more of the following:

[0190] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0191] In some embodiments, the first information may be designed in the following manner:

[0192] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least one of the following or a combination of any two or more:

[0193] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the SRB and / or DRB transmission between the remote terminal and the network-side device through the relay terminal. The relay terminal may be one or more.

[0194] In some embodiments, the first information includes at least one or more of the following:

[0195] The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal;

[0196] The SRAP configuration information includes at least one or more of the following:

[0197] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0198] In some embodiments, the first information may be designed in the following manner:

[0199] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least any one or a combination of the following: the identification of the remote terminal, and the Egress PC5 RLC channel corresponding to the SRB and / or DRB transmission between the remote terminal and the network-side device through the relay terminal. The number of the remote terminals may be one or more.

[0200] FIG6 is a second flow chart of a data transmission method provided in an embodiment of the present disclosure. As shown in FIG6 , the data transmission method is applied to a network-side device, and the method includes:

[0201] Step 600: Send first information; wherein the first information is used to configure the identifier of at least one relay terminal and the corresponding egress direct communication interface radio link control channel Egress PC5 RLC channel when the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device performs SRB and / or DRB transmission through the relay terminal;

[0202] Step 610: Perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, wherein the multi-hop relay link includes the at least one relay terminal.

[0203] Specifically, the remote terminal can receive first information from the network side device, wherein the first information is used to configure the end-to-end SRB (Signaling Radio Bearer) and / or DRB (Data Radio Bearer) between the remote terminal and the network side device, the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission, and the corresponding exit PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0204] The data transmission method provided by the embodiments of the present disclosure can ensure that for a remote terminal that needs to access a network-side device through a multi-hop relay link, the network-side device configures a suitable Egress PC5 RLC channel for each hop on the multi-hop link, thereby ensuring that data can be transmitted between the remote terminal and the network-side device through a multi-hop relay method, solving the problem of remote terminals in deep coverage blind spots being unable to communicate.

[0205] In some embodiments, the at least one relay terminal includes at least one of the following:

[0206] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0207] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0208] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0209] In some embodiments, the first information is used to configure the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission for the end-to-end SRB and / or DRB between the remote terminal and the network side device, wherein the relay terminal is all or part of the relay terminals used when the remote terminal accesses the network side device through multi-hop, for example, the first relay terminal on the multi-hop link that is directly connected to the network side device may not be included.

[0210] In some embodiments, the method further comprises:

[0211] receiving second information from the first relay terminal;

[0212] The second information includes one or more of the following:

[0213] an identifier of the remote terminal;

[0214] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link;

[0215] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

[0216] Specifically, before the remote terminal receives the first information from the network-side device, the method further includes: a first relay terminal directly connected to the network-side device on the multi-hop link sends second information to the network-side device, wherein the second information includes any one of the following:

[0217] (A) identification information of a remote terminal and a relay terminal identification used by the remote terminal when accessing a network through multiple hops;

[0218] (B) Identification information of a remote terminal and information of candidate relay terminals that can be selected when the remote terminal accesses a network.

[0219] Based on (A), a method for determining the relay terminal used by the remote terminal when accessing the network through multi-hop may include any of the following:

[0220] (1) The remote terminal selects a relay terminal for each hop in a multi-hop relay scenario;

[0221] (2) Each hop node (which can be a remote terminal or a relay terminal) in a multi-hop scenario selects the previous hop relay terminal to be used; each hop relay needs to notify its own identification information or its own identification information and the identification information of the previous hop relay terminal to the first relay terminal that is directly connected to the network side device on the multi-hop link.

[0222] (3) The first relay terminal directly connected to the network-side device on the multi-hop link selects a relay terminal to be used for each hop when the remote terminal accesses the network.

[0223] In some embodiments, the first relay terminal may send identifiers of all or part of the nodes to the network-side device.

[0224] In some embodiments, the first relay terminal may send identifiers of all or part of the candidate nodes to the network-side device.

[0225] In some embodiments, the method further comprises:

[0226] Do one or more of the following:

[0227] Determining that the remote terminal accesses the network-side device using a multi-hop relay link;

[0228] Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

[0229] Based on (B), the network side device may determine whether the remote terminal uses multiple hops when accessing the network side device and / or the relay terminal used in each hop if the remote terminal uses multiple hops.

[0230] In some embodiments, the relay link includes the at least one relay terminal and a first relay terminal, and the first relay terminal is a relay terminal directly connected to the network-side device.

[0231] In some embodiments, the first information is used to configure the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission for the end-to-end SRB and / or DRB between the remote terminal and the network side device, wherein the relay terminal is all or part of the relay terminals used when the remote terminal accesses the network side device through multi-hop, for example, the first relay terminal on the multi-hop link that is directly connected to the network side device may not be included.

[0232] In some embodiments, the method further comprises one or more of the following:

[0233] Sending the first information to the first relay terminal;

[0234] Sending the first information to each relay terminal on the relay link;

[0235] Sending first information to the remote terminal.

[0236] In some embodiments, after determining the first information, the network-side device may further perform at least one of the following:

[0237] (1) The network side device is configured to the relay terminal;

[0238] (2) The network-side device configures the first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal configures the first relay terminal to each other relay terminal and / or the remote terminal used by the remote terminal to access the network;

[0239] (3) The network side device is configured to the first relay terminal that is directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0240] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0241] The SRAP configuration information includes at least one or more of the following:

[0242] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0243] In some embodiments, the first information may be designed in the following manner:

[0244] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least any one or a combination of the following:

[0245] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the SRB and / or DRB transmission between the remote terminal and the network-side device through the relay terminal. The relay terminal may be one or more.

[0246] In some embodiments, the first information includes at least one or more of the following:

[0247] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0248] The SRAP configuration information includes at least one or more of the following:

[0249] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0250] In some embodiments, the first information may be designed in the following manner:

[0251] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least any one or a combination of any two or more of the following:

[0252] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device through the relay terminal. The number of the remote terminals may be one or more.

[0253] FIG7 is a third flow chart of a data transmission method provided in an embodiment of the present disclosure. As shown in FIG7 , the data transmission method is applied to a relay terminal, and the method includes:

[0254] Step 700: Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal and an egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0255] Step 710: forward data to the end-to-end SRB and / or DRB of the remote terminal according to the first information.

[0256] Specifically, the relay terminal can receive first information from a network side device or other relay terminal, wherein the first information is used to configure the end-to-end SRB (Signaling Radio Bearer) and / or DRB (Data Radio Bearer) between the remote terminal and the network side device, the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission, and the corresponding exit PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0257] The data transmission method provided by the embodiments of the present disclosure can ensure that for a remote terminal that needs to access a network-side device through a multi-hop relay link, the network-side device configures a suitable Egress PC5 RLC channel for each hop on the multi-hop link, thereby ensuring that data can be transmitted between the remote terminal and the network-side device through a multi-hop relay method, solving the problem of remote terminals in deep coverage blind spots being unable to communicate.

[0258] In some embodiments, the relay terminal includes at least one of the following:

[0259] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0260] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0261] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0262] In some embodiments, the first information is used to configure the relay terminal identifier used by the SRB and / or DRB during multi-hop transmission for the end-to-end SRB and / or DRB between the remote terminal and the network side device, wherein the relay terminal is all or part of the relay terminals used when the remote terminal accesses the network side device through multi-hop, for example, the first relay terminal on the multi-hop link that is directly connected to the network side device may not be included.

[0263] In some embodiments, the receiving of the first information includes at least one of the following:

[0264] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0265] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0266] receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal;

[0267] First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

[0268] In some embodiments, after determining the first information, the network-side device may further perform at least one of the following:

[0269] (1) The network side device is configured to the relay terminal;

[0270] (2) The network-side device configures the first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal configures the first relay terminal to each other relay terminal and / or the remote terminal used by the remote terminal to access the network;

[0271] (3) The network side device is configured to the first relay terminal that is directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0272] In some embodiments, the method further includes: determining a relay terminal for each hop on a multi-hop relay link corresponding to the remote terminal.

[0273] In some embodiments, in order to implement data forwarding for the end-to-end SRB and / or DRB of the remote terminal, the relay terminal may first determine the relay terminal of each hop on the multi-hop relay link corresponding to the remote terminal.

[0274] In some embodiments, determining the relay terminal of each hop on the relay link includes one or more of the following:

[0275] Select a relay terminal for each hop on the relay link;

[0276] receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link;

[0277] Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

[0278] In some embodiments, a method for determining the relay terminal used by the remote terminal when accessing the network through multi-hop may include any one of the following:

[0279] (1) The remote terminal selects a relay terminal for each hop in a multi-hop relay scenario; the remote terminal needs to notify the first relay terminal directly connected to the network-side device on the multi-hop link of the relay terminal selected for each hop.

[0280] (2) Each hop node (which can be a remote terminal or a relay terminal) in a multi-hop scenario selects the previous hop relay terminal to be used; each hop relay needs to notify its own identification information or its own identification information and the identification information of the previous hop relay terminal to the first relay terminal that is directly connected to the network side device on the multi-hop link.

[0281] (3) The first relay terminal directly connected to the network-side device on the multi-hop link selects a relay terminal to be used for each hop when the remote terminal accesses the network.

[0282] In some embodiments, if the relay terminal is a first relay terminal, the method further includes:

[0283] Sending second information to the network side device;

[0284] The second information includes one or more of the following:

[0285] an identifier of the remote terminal;

[0286] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay;

[0287] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

[0288] Specifically, before the remote terminal receives the first information from the network-side device, the method further includes: a first relay terminal directly connected to the network-side device on the multi-hop link sends second information to the network-side device, wherein the second information includes any one of the following:

[0289] (A) identification information of a remote terminal and a relay terminal identification used by the remote terminal when accessing a network through multiple hops;

[0290] (B) Identification information of a remote terminal and information of candidate relay terminals that can be selected when the remote terminal accesses a network.

[0291] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0292] The SRAP configuration information includes at least one or more of the following:

[0293] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0294] In some embodiments, the first information may be designed in the following manner:

[0295] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least any one or a combination of the following: an identifier of the remote terminal, an identifier of the end-to-end SRB and / or DRB of the remote terminal, an identifier of the at least one relay terminal, and an Egress PC5 RLC channel corresponding to the transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device through the relay terminal. The relay terminal may be one or more.

[0296] In some embodiments, the first information includes at least one or more of the following:

[0297] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0298] The SRAP configuration information includes at least one or more of the following:

[0299] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0300] In some embodiments, the first information may be designed in the following manner:

[0301] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least any one or a combination of the following: the identification of the remote terminal, and the Egress PC5 RLC channel corresponding to the SRB and / or DRB transmission between the remote terminal and the network-side device through the relay terminal. The number of the remote terminals may be one or more.

[0302] In one embodiment, FIG8 is one of schematic diagrams of data transmission provided by an embodiment of the present disclosure. As shown in FIG8 , data transmission can be achieved by selecting a relay terminal for each hop used when the remote terminal accesses a network-side device through a remote terminal. Specifically, the steps include:

[0303] Steps 0 to 3: To access a network-side device, the Remote UE must first perform Relay discovery to discover candidate Relay UEs that can be used by the network-side device.

[0304] Figure 8 uses Relay Terminal Discovery Model B (i.e., Model B) as an example. Through steps 0 to 3, the Remote UE can discover candidate Relay UEs that its access network-side equipment can use. In specific implementations, in addition to using Relay Terminal Discovery Model B, you can also consider using Relay Terminal Discovery Model A (i.e., Model A). Unlike Model B, in Model A, Relay UE A directly sends a Relay Discovery-related message to the Remote UE. The message carries the identification information of other Relay UEs that the Relay UE has discovered and / or information about the target nodes that each other Relay UE can access.

[0305] Step 4: The Remote UE performs Relay UE selection.

[0306] The remote UE selects a target relay terminal based on the candidate relay terminals obtained in steps 0 to 3, and determines the relay terminal to be used by the remote UE to access the network side device. If the remote terminal needs to access the network through multiple hops, the remote terminal selects a relay terminal for each hop in the multi-hop relay scenario.

[0307] Steps 5 to 8: Establish a PC5-S connection between the remote terminal and the relay terminal, and between the relay terminals in a multi-hop relay scenario.

[0308] During this process, the remote terminal can notify the first relay terminal (i.e., Relay UE B) that is directly connected to the network side device on the multi-hop link of the remote terminal's identification information and the relay terminal identification information used by the remote terminal when accessing the network through multi-hop through PC5-RRC signaling.

[0309] Steps 9-10: The remote terminal initiates an end-to-end RRC connection establishment process with the network side device through SL-RLC0.

[0310] Specifically, an RRC connection establishment request message (such as RRCSetupRequest) may be transmitted via SL-RLC0. The RRC connection establishment request message is forwarded via a multi-hop relay to a first relay terminal directly connected to a network-side device on the multi-hop link.

[0311] Step 11: The first terminal sends a second message to the network-side device.

[0312] The second information includes identification information of the remote terminal and an identification of a relay terminal used when the remote terminal accesses a network through multiple hops.

[0313] Steps 12 to 15: The network-side device sends a first message to the relay terminal.

[0314] The network side device determines first information, wherein the first information is used to configure, for an end-to-end SRB (such as SRB1) between the remote terminal and the network side device, a relay terminal identifier used by the SRB during multi-hop transmission, and an egress PC5 RLC channel (also called an Egress PC5 RLC channel) corresponding to the SRB when it is transmitted through the relay terminal.

[0315] The first information may be designed in any of the following ways:

[0316] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least a remote terminal identifier, a relay terminal identifier used by each hop when the remote terminal accesses the network through multiple hops, and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The relay terminal may be one or more.

[0317] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least a remote terminal identification and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The number of the remote terminals may be one or more.

[0318] After the network-side device determines the first information, at least one of the following is further included:

[0319] The network side device is configured to the relay terminal;

[0320] The network-side device is configured to a first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal is configured to each other relay terminal used by the remote terminal to access the network;

[0321] The network side device is configured to the first relay terminal directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0322] Steps 12 and 13 in Figure 8 are schematic diagrams given using the third method as an example. Step 14 is used to configure the configuration information used when the Remote UE receives SRB1 from the Relay UE.

[0323] Step 16 / 17: The remote terminal establishes an end-to-end RRC connection with the network-side device through the multi-hop relay.

[0324] Steps 18-19: The network-side device sends first configuration information to the relay terminal.

[0325] Similar to steps 12 to 13, the difference is that: the first information is used to configure the relay terminal identifier used by the SRB / DRB during multi-hop transmission for the end-to-end SRB (such as SRB2) and / or DRB between the remote terminal and the network side device, and the corresponding egress PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0326] In one embodiment, FIG9 is a second schematic diagram of data transmission provided by an embodiment of the present disclosure. As shown in FIG9 , in a multi-hop relay scenario, each hop may select a relay terminal used by the previous hop to implement data transmission. Specifically, the following steps may be included:

[0327] Steps 0 to 3: To access a network-side device, the Remote UE must first perform Relay discovery to discover candidate Relay UEs that can be used by the network-side device.

[0328] Figure 9 uses Relay Terminal Discovery Model B (i.e., Model B) as an example. Through steps 0 to 3, the Remote UE can discover candidate Relay UEs that its access network-side equipment can use. In specific implementations, in addition to using Relay Terminal Discovery Model B, you can also consider using Relay Terminal Discovery Model A (i.e., Model A). Unlike Model B, in Model A, Relay UE A directly sends a Relay Discovery-related message to the Remote UE. The message carries the identification information of other Relay UEs that the Relay UE has discovered and / or information about the target nodes that each other Relay UE can access.

[0329] Steps 4-5: The Remote UE performs next-hop Relay UE selection.

[0330] The Remote UE performs the previous-hop relay selection based on the candidate relay terminals obtained in steps 0 to 3, determines that Relay UE A is used as the next hop, and then establishes a PC5-S connection between the Remote UE and Relay UE A.

[0331] Steps 6-7: Next-hop Relay The UE selects the next-hop Relay.

[0332] That is, Relay UE A performs next-hop relay selection and selects Relay UE B, then a PC5-S connection is established between Relay UE A and Relay UE B.

[0333] Step 8: Optional Step.

[0334] Relay UE A and Relay UE B exchange some Relay UE information to be used by the remote terminal to access the network. This step can also be combined with step 7, that is, the relevant interaction is completed through PC-S messages, and no additional PC5-RRC messages are required.

[0335] Steps 9-10: The remote terminal initiates an end-to-end RRC connection establishment process with the network side device through SL-RLC0.

[0336] Specifically, an RRC connection establishment request message (such as RRCSetupRequest) may be transmitted via SL-RLC0. The RRC connection establishment request message is forwarded via a multi-hop relay to a first relay terminal directly connected to a network-side device on the multi-hop link.

[0337] Step 11: The first terminal sends a second message to the network-side device.

[0338] The second information includes identification information of the remote terminal and an identification of a relay terminal used when the remote terminal accesses a network through multiple hops.

[0339] Steps 12 to 15: The network-side device sends a first message to the relay terminal.

[0340] The network side device determines first information, wherein the first information is used to configure, for an end-to-end SRB (such as SRB1) between the remote terminal and the network side device, a relay terminal identifier used by the SRB during multi-hop transmission, and an egress PC5 RLC channel (also called an Egress PC5 RLC channel) corresponding to the SRB when it is transmitted through the relay terminal.

[0341] The first information may be designed in any of the following ways:

[0342] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least a remote terminal identifier, a relay terminal identifier used by each hop when the remote terminal accesses the network through multiple hops, and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The relay terminal may be one or more.

[0343] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least a remote terminal identification and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The number of the remote terminals may be one or more.

[0344] After the network-side device determines the first information, at least one of the following is further included:

[0345] The network side device is configured to the relay terminal;

[0346] The network-side device is configured to a first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal is configured to each other relay terminal used by the remote terminal to access the network;

[0347] The network side device is configured to the first relay terminal directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0348] Steps 12 and 13 in Figure 9 are schematic diagrams given using the third method as an example. Step 14 is used to configure the configuration information used when the Remote UE receives SRB1 from the Relay UE.

[0349] Step 16 / 17: The remote terminal establishes an end-to-end RRC connection with the network-side device through the multi-hop relay.

[0350] Steps 18-19: The network side device sends the first configuration information to the relay terminal

[0351] Similar to steps 12 to 13, the difference is that: the first information is used to configure the relay terminal identifier used by the SRB / DRB during multi-hop transmission for the end-to-end SRB (such as SRB2) and / or DRB between the remote terminal and the network side device, and the corresponding egress PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0352] In one embodiment, FIG10 is a third schematic diagram of data transmission provided by an embodiment of the present disclosure. As shown in FIG10 , a U2N Relay directly connected to a network-side device may select a relay terminal for each hop, thereby implementing data transmission. Specifically, the process may include the following:

[0353] Steps 1 and 2: To access a network-side device, the Remote UE must first perform Relay discovery to discover candidate Relay UEs that can be used by the network-side device.

[0354] Figure 10 takes the relay terminal discovery model B (ie, Model B) as an example. Through steps 1 and 2, a candidate relay UE that can be used by the remote UE to access the network can be found.

[0355] Steps 3-5: Relay UE B performs relay selection.

[0356] The Relay UE selects a Relay UE that can be used by the Remote UE to access the network-side device and notifies the Remote UE.

[0357] Step 6: The Remote UE determines the relay terminal to be used.

[0358] The Remote UE determines the relay terminal to use when accessing the network-side device. This step is necessary because multiple Relay UEs with direct connections to the network may have sent corresponding messages to it. In other words, the Remote UE has multiple different paths to access the network. In this case, the Remote UE needs to perform another path selection.

[0359] Steps 7 and 8: Establish PC5-S connections between the remote terminal and the relay terminal, and between the relay terminals in a multi-hop relay scenario.

[0360] Steps 9-10: The remote terminal initiates an end-to-end RRC connection establishment process with the network side device through SL-RLC0.

[0361] Specifically, an RRC connection establishment request message (such as RRCSetupRequest) may be transmitted via SL-RLC0. The RRC connection establishment request message is forwarded via a multi-hop relay to a first relay terminal directly connected to a network-side device on the multi-hop link.

[0362] Step 11: The first terminal sends a second message to the network-side device.

[0363] The second information includes identification information of the remote terminal and an identification of a relay terminal used when the remote terminal accesses a network through multiple hops.

[0364] Steps 12 to 15: The network-side device sends a first message to the relay terminal.

[0365] The network side device determines first information, wherein the first information is used to configure, for an end-to-end SRB (such as SRB1) between the remote terminal and the network side device, a relay terminal identifier used by the SRB during multi-hop transmission, and an egress PC5 RLC channel (also called an Egress PC5 RLC channel) corresponding to the SRB when it is transmitted through the relay terminal.

[0366] The first information may be designed in any of the following ways:

[0367] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least a remote terminal identifier, a relay terminal identifier used by each hop when the remote terminal accesses the network through multiple hops, and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The relay terminal may be one or more.

[0368] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least a remote terminal identification and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The number of the remote terminals may be one or more.

[0369] After the network-side device determines the first information, at least one of the following is further included:

[0370] The network side device is configured to the relay terminal;

[0371] The network-side device is configured to a first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal is configured to each other relay terminal used by the remote terminal to access the network;

[0372] The network side device is configured to the first relay terminal directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0373] Steps 12 and 13 in Figure 10 are schematic diagrams given using the third method as an example. Step 14 is used to configure the configuration information used when the Remote UE receives SRB1 from the Relay UE.

[0374] Step 16 / 17: The remote terminal establishes an end-to-end RRC connection with the network-side device through the multi-hop relay.

[0375] Steps 18-19: The network side device sends the first configuration information to the relay terminal

[0376] Similar to steps 12 to 13, the difference is that: the first information is used to configure the relay terminal identifier used by the SRB / DRB during multi-hop transmission for the end-to-end SRB (such as SRB2) and / or DRB between the remote terminal and the network side device, and the corresponding egress PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0377] In one embodiment, FIG11 is a fourth schematic diagram of data transmission provided by an embodiment of the present disclosure. As shown in FIG11 , the network-side device may determine whether the remote terminal uses multi-hop to access the network, and if multi-hop is used, the network-side device determines the multi-hop transmission path (i.e., the relay terminal used for each hop) to implement data transmission; specifically, the following steps may be included:

[0378] Steps 0-1: To access a network-side device, the Remote UE first needs to perform Relay discovery to discover candidate Relay UEs that can be used by the network-side device.

[0379] Figure 11 takes the relay terminal discovery model B (ie, Model B) as an example. Through steps 0 to 1, a candidate relay UE that can be used by the remote UE to access the network can be found.

[0380] Steps 2 to 4: The relay UE directly connected to the network sends a third message to the network side device, and the network performs relay selection for the remote terminal and sends a fourth message to the first relay UE directly connected to the network side device.

[0381] Steps 5-6: Relay UE B sends a response message to Remote UE.

[0382] The response message is used to indicate to the Remote UE at least one relay terminal used by the network side device to access. If only one is indicated, it should indicate the first hop relay terminal (ie, Relay UE A) used by the Remote UE to access the network side device.

[0383] Steps 7 and 8: Establish PC5-S connections between the remote terminal and the relay terminal, and between the relay terminals in a multi-hop relay scenario.

[0384] Steps 9-10: The remote terminal initiates an end-to-end RRC connection establishment process with the network side device through SL-RLC0.

[0385] Specifically, an RRC connection establishment request message (such as RRCSetupRequest) may be transmitted via SL-RLC0. The RRC connection establishment request message is forwarded via a multi-hop relay to a first relay terminal directly connected to a network-side device on the multi-hop link.

[0386] Step 11: The first terminal sends a second message to the network-side device.

[0387] The second information includes identification information of the remote terminal and an identification of a relay terminal used when the remote terminal accesses a network through multiple hops.

[0388] Steps 12 to 15: The network-side device sends a first message to the relay terminal.

[0389] The network side device determines first information, wherein the first information is used to configure, for an end-to-end SRB (such as SRB1) between the remote terminal and the network side device, a relay terminal identifier used by the SRB during multi-hop transmission, and an egress PC5 RLC channel (also called an Egress PC5 RLC channel) corresponding to the SRB when it is transmitted through the relay terminal.

[0390] The first information may be designed in any of the following ways:

[0391] The first information includes SRAP (Sidelink Relay Adaptation Layer) configuration information, where the SRAP configuration information includes at least a remote terminal identifier, a relay terminal identifier used by each hop when the remote terminal accesses the network through multiple hops, and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The relay terminal may be one or more.

[0392] The first information includes relay terminal identification information and SRAP (Sidelink Relay Adaptation Layer) configuration information corresponding to the relay terminal, wherein the SRAP configuration information includes at least a remote terminal identification and an egress PC5 RLC channel (Egress PC5 RLC channel) corresponding to when end-to-end SRB / DRB between the remote terminal and the network-side device is transmitted through the relay terminal. The number of the remote terminals may be one or more.

[0393] After the network-side device determines the first information, at least one of the following is further included:

[0394] The network side device is configured to the relay terminal;

[0395] The network-side device is configured to a first relay terminal directly connected to the network-side device on the multi-hop link, and then the first relay terminal is configured to each other relay terminal used by the remote terminal to access the network;

[0396] The network side device is configured to the first relay terminal directly connected to the network side device on the multi-hop link, and then the first relay terminal is configured to the next hop relay terminal, and then the next hop relay terminal is configured to the next hop relay terminal, and so on.

[0397] Steps 12 and 13 in Figure 11 are schematic diagrams given by taking the third method as an example. Step 14 is used to configure the configuration information used when the Remote UE receives the SRB1 from the Relay UE.

[0398] Step 16 / 17: The remote terminal establishes an end-to-end RRC connection with the network-side device through the multi-hop relay.

[0399] Steps 18-19: The network side device sends the first configuration information to the relay terminal

[0400] Similar to steps 12 to 13, the difference is that: the first information is used to configure the relay terminal identifier used by the SRB / DRB during multi-hop transmission for the end-to-end SRB (such as SRB2) and / or DRB between the remote terminal and the network side device, and the corresponding egress PC5 RLC channel (also called Egress PC5 RLC channel) when the SRB / DRB is transmitted through the relay terminal.

[0401] It should be noted that the identification information of the remote terminal and / or relay terminal described in the above embodiments may be an L2 address, such as a Source L2 ID. It should be noted that the Source L2 ID of the Remote UE may be the Destination L2 ID for the Relay UE, and the Source L2 ID of the Relay UE may be the Destination L2 ID for the Remote UE.

[0402] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0403] The network side device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network side device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network side device may also coordinate the attribute management of the air interface. For example, the network side device involved in the embodiments of the present disclosure may be a network side device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network side device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network side device (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., which is not limited in the embodiments of the present disclosure. In some network structures, the network side device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0404] FIG12 is a schematic diagram of a terminal structure according to an embodiment of the present disclosure. As shown in FIG12 , the terminal includes a memory 1220, a transceiver 1200, and a processor 1210, wherein:

[0405] The memory 1220 is used to store computer programs; the transceiver 1200 is used to send and receive data under the control of the processor 1210; the processor 1210 is used to read the computer program in the memory 1220 and perform the following operations:

[0406] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when SRB and / or DRB transmission is performed through the relay terminal;

[0407] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0408] Specifically, the transceiver 1200 is configured to receive and send data under the control of the processor 1210 .

[0409] In FIG12 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 1210 and memory represented by memory 1220. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1200 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 1230 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0410] The processor 1210 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 1210 when performing operations.

[0411] In some embodiments, the processor 1210 may 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 may also adopt a multi-core architecture.

[0412] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0413] In some embodiments, the at least one relay terminal includes at least one of the following:

[0414] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0415] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0416] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0417] In some embodiments, the processor 1210 is configured to:

[0418] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0419] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0420] First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

[0421] In some embodiments, the processor 1210 is further configured to:

[0422] Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following:

[0423] The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal;

[0424] The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0425] In some embodiments, the processor 1210 is further configured to:

[0426] Determine a relay terminal used by each hop on the multi-hop relay link.

[0427] In some embodiments, the processor 1210 is further configured to:

[0428] Sending, to the first relay terminal, an identifier of a relay terminal used by each hop on the multi-hop relay link.

[0429] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0430] The SRAP configuration information includes at least one or more of the following:

[0431] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0432] In some embodiments, the first information includes at least one or more of the following:

[0433] The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal;

[0434] The SRAP configuration information includes at least one or more of the following:

[0435] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0436] It should be noted here that the above-mentioned terminal provided in the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those of the method embodiment will not be described in detail here.

[0437] FIG13 is a schematic diagram of the structure of a network-side device provided in an embodiment of the present disclosure. As shown in FIG13 , the network-side device includes a memory 1320, a transceiver 1300, and a processor 1310, wherein:

[0438] The memory 1320 is used to store computer programs; the transceiver 1300 is used to send and receive data under the control of the processor 1310; the processor 1310 is used to read the computer program in the memory 1320 and perform the following operations:

[0439] Sending first information; wherein the first information is used to configure the identifier of at least one relay terminal, and the egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when performing SRB and / or DRB transmission through the relay terminal;

[0440] According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

[0441] Specifically, the transceiver 1300 is configured to receive and send data under the control of the processor 1310 .

[0442] In FIG13 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 1310 and memory represented by memory 1320. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1300 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1310 when performing operations.

[0443] The processor 1310 may 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 may also adopt a multi-core architecture.

[0444] In some embodiments, the at least one relay terminal includes at least one of the following:

[0445] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0446] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0447] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0448] In some embodiments, the processor 1310 is further configured to:

[0449] receiving second information from the first relay terminal;

[0450] The second information includes one or more of the following:

[0451] an identifier of the remote terminal;

[0452] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link;

[0453] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

[0454] In some embodiments, the processor 1310 is further configured to:

[0455] Do one or more of the following:

[0456] Determining that the remote terminal accesses the network-side device using a multi-hop relay link;

[0457] Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

[0458] In some embodiments, the processor 1310 is further configured to:

[0459] Sending the first information to the first relay terminal;

[0460] Sending the first information to each relay terminal on the relay link;

[0461] Sending first information to the remote terminal.

[0462] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0463] The SRAP configuration information includes at least one or more of the following:

[0464] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0465] In some embodiments, the first information includes at least one or more of the following:

[0466] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0467] The SRAP configuration information includes at least one or more of the following:

[0468] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0469] It should be noted here that the above-mentioned network side device provided in the embodiment of the present disclosure can implement all the method steps implemented by the method embodiment in which the execution subject is the network side device, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0470] FIG14 is a second schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure. As shown in FIG14 , the terminal includes a memory 1420, a transceiver 1400, and a processor 1410, wherein:

[0471] The memory 1420 is used to store computer programs; the transceiver 1400 is used to send and receive data under the control of the processor 1410; the processor 1410 is used to read the computer program in the memory 1420 and perform the following operations:

[0472] Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0473] According to the first information, data is forwarded for the end-to-end SRB and / or DRB of the remote terminal.

[0474] Specifically, the transceiver 1400 is configured to receive and send data under the control of the processor 1410 .

[0475] In FIG14 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 1410 and memory represented by memory 1420. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1400 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. For different user devices, the user interface 1430 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0476] The processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1410 when performing operations.

[0477] In some embodiments, the processor 1410 may 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 may also adopt a multi-core architecture.

[0478] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0479] In some embodiments, the relay terminal includes at least one of the following:

[0480] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0481] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0482] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0483] In some embodiments, the processor 1410 is configured to:

[0484] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0485] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0486] receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal;

[0487] First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

[0488] In some embodiments, the processor 1410 is further configured to:

[0489] Determine a relay terminal for each hop on the multi-hop relay link corresponding to the remote terminal.

[0490] In some embodiments, the processor 1410 is configured to:

[0491] Select a relay terminal for each hop on the relay link;

[0492] receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link;

[0493] Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

[0494] In some embodiments, if the relay terminal is a first relay terminal, the processor 1410 is further configured to:

[0495] Sending second information to the network side device;

[0496] The second information includes one or more of the following:

[0497] an identifier of the remote terminal;

[0498] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay;

[0499] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

[0500] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0501] The SRAP configuration information includes at least one or more of the following:

[0502] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0503] In some embodiments, the first information includes at least one or more of the following:

[0504] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0505] The SRAP configuration information includes at least one or more of the following:

[0506] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network-side device when the SRB and / or DRB are transmitted through the relay terminal. It should be noted that the above-mentioned terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. The parts and beneficial effects that are the same as those in the method embodiment in this embodiment will not be described in detail here.

[0507] FIG15 is a schematic diagram of a data transmission device according to an embodiment of the present disclosure. As shown in FIG15 , a data transmission device 1500 is applied to a remote terminal. The device 1500 includes:

[0508] A first receiving module 1510 is configured to receive first information, wherein the first information is used to configure an identifier of at least one relay terminal and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between the remote terminal and the network-side device when performing SRB and / or DRB transmission through the relay terminal.

[0509] The first transmission module 1520 is configured to perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, where the multi-hop relay link includes the at least one relay terminal.

[0510] It should be noted that the data transmission device 1500 can implement the various embodiments of the aforementioned data transmission method and achieve the same technical effects, which will not be described in detail here.

[0511] In some embodiments, the at least one relay terminal includes at least one of the following:

[0512] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0513] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0514] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0515] In some embodiments, the first receiving module 1510 is configured to:

[0516] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0517] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0518] First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

[0519] In some embodiments, the apparatus further includes a configuration information sending module, configured to:

[0520] Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following:

[0521] The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal;

[0522] The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0523] In some embodiments, the apparatus further comprises:

[0524] The first determining module is configured to determine a relay terminal used by each hop on the multi-hop relay link.

[0525] In some embodiments, the apparatus further comprises:

[0526] The identifier sending module is used to send the identifier of the relay terminal used by each hop on the multi-hop relay link to the first relay terminal.

[0527] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0528] The SRAP configuration information includes at least one or more of the following:

[0529] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0530] In some embodiments, the first information includes at least one or more of the following:

[0531] The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal;

[0532] The SRAP configuration information includes at least one or more of the following:

[0533] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0534] FIG16 is a second structural diagram of a data transmission device provided in an embodiment of the present disclosure. As shown in FIG16 , a data transmission device 1600 is applied to a network-side device. The device 1600 includes:

[0535] A first sending module 1610 is configured to send first information, wherein the first information is used to configure an identifier of at least one relay terminal and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between the remote terminal and the network-side device when performing SRB and / or DRB transmission through the relay terminal;

[0536] The second transmission module 1620 is configured to perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, where the multi-hop relay link includes the at least one relay terminal.

[0537] It should be noted that the data transmission device 1600 can implement the various embodiments of the aforementioned data transmission method and achieve the same technical effects, which will not be described in detail here.

[0538] In some embodiments, the at least one relay terminal includes at least one of the following:

[0539] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0540] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0541] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0542] In some embodiments, the apparatus further comprises:

[0543] A second information receiving module, configured to receive second information from the first relay terminal;

[0544] The second information includes one or more of the following:

[0545] an identifier of the remote terminal;

[0546] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link;

[0547] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

[0548] In some embodiments, the apparatus further comprises:

[0549] An execution module, configured to perform one or more of the following:

[0550] Determining that the remote terminal accesses the network-side device using a multi-hop relay link;

[0551] Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

[0552] In some embodiments, the apparatus further includes a first information sending module configured to perform one or more of the following:

[0553] Sending the first information to the first relay terminal;

[0554] Sending the first information to each relay terminal on the relay link;

[0555] Sending first information to the remote terminal.

[0556] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0557] The SRAP configuration information includes at least one or more of the following:

[0558] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0559] In some embodiments, the first information includes at least one or more of the following:

[0560] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0561] The SRAP configuration information includes at least one or more of the following:

[0562] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0563] FIG17 is a third structural diagram of a data transmission device provided in an embodiment of the present disclosure. As shown in FIG17 , a data transmission device 1700 is applied to a first relay terminal. The device 1700 includes:

[0564] The second receiving module 1710 is configured to receive first information; wherein the first information is used to configure an identifier of at least one relay terminal and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer (SRB) and / or data radio bearer (DRB) between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal;

[0565] The third transmission module 1720 is configured to forward data to the end-to-end SRB and / or DRB of the remote terminal according to the first information.

[0566] It should be noted that the data transmission device 1700 can implement the various embodiments of the aforementioned data transmission method and achieve the same technical effects, which will not be described in detail here.

[0567] In some embodiments, the relay terminal includes at least one of the following:

[0568] Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device;

[0569] Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device;

[0570] The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

[0571] In some embodiments, the second receiving module 1710 is configured to:

[0572] Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal;

[0573] receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal;

[0574] receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal;

[0575] First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

[0576] In some embodiments, the apparatus further comprises:

[0577] The second determining module is configured to determine the relay terminal of each hop on the multi-hop relay link corresponding to the remote terminal.

[0578] In some embodiments, the second determination module is configured to:

[0579] Select a relay terminal for each hop on the relay link;

[0580] receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link;

[0581] Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

[0582] In some embodiments, if the relay terminal is a first relay terminal, the apparatus further includes a second information sending module configured to:

[0583] Sending second information to the network side device;

[0584] The second information includes one or more of the following:

[0585] an identifier of the remote terminal;

[0586] A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay;

[0587] The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

[0588] In some embodiments, the first information includes direct communication relay adaptation layer SRAP configuration information;

[0589] The SRAP configuration information includes at least one or more of the following:

[0590] The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

[0591] In some embodiments, the first information includes at least one or more of the following:

[0592] an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal;

[0593] The SRAP configuration information includes at least one or more of the following:

[0594] The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

[0595] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0596] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network side device, etc.) or a processor (processor) to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc. Various media that can store program codes.

[0597] It should be noted here that the above-mentioned device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects that are the same as the method embodiment in this embodiment will not be described in detail here.

[0598] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the methods provided in the above embodiments.

[0599] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0600] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0601] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0602] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0603] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0604] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A data transmission method, applied to a remote terminal, comprising: Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when SRB and / or DRB transmission is performed through the relay terminal; According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

2. The data transmission method according to claim 1, wherein: The at least one relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

3. The data transmission method according to claim 1 or 2, wherein: The receiving of the first information includes at least one of the following: Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal; receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal; First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

4. The data transmission method according to claim 1 or 2, wherein: The method further comprises: Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following: The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal; The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

5. The data transmission method according to claim 1 or 2, wherein: The method further comprises: Determine a relay terminal used by each hop on the multi-hop relay link. The data transmission method according to claim 5 , wherein: The method further comprises: An identifier of a relay terminal used by each hop on the multi-hop relay link is sent to the first relay terminal.

7. The data transmission method according to claim 1 or 2, wherein: The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

8. The data transmission method according to claim 1 or 2, wherein: The first information includes at least one or more of the following: The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

9. A data transmission method, applied to a network-side device, comprising: Sending first information; wherein the first information is used to configure the identifier of at least one relay terminal, and the corresponding egress direct communication interface radio link control channel Egress PC5 RLC channel when the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device performs SRB and / or DRB transmission through the relay terminal; According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

10. The data transmission method according to claim 9, wherein: The at least one relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

11. The data transmission method according to claim 9 or 10, wherein: The method further comprises: receiving second information from the first relay terminal; The second information includes one or more of the following: an identifier of the remote terminal; A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link; The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

12. The data transmission method according to claim 11, wherein: The method further comprises: Do one or more of the following: Determining that the remote terminal accesses the network-side device using a multi-hop relay link; Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

13. The data transmission method according to any one of claims 9 to 12, wherein: The method may further comprise one or more of the following: Sending the first information to the first relay terminal; Sending the first information to each relay terminal on the relay link; Sending first information to the remote terminal.

14. The data transmission method according to any one of claims 9 to 12, wherein: The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

15. The data transmission method according to any one of claims 9 to 12, wherein: The first information includes at least one or more of the following: an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

16. A data transmission method, applied to a relay terminal, comprising: Receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal; According to the first information, data is forwarded for the end-to-end SRB and / or DRB of the remote terminal.

17. The data transmission method according to claim 16, wherein: The relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

18. The data transmission method according to claim 16 or 17, wherein: The receiving of the first information includes at least one of the following: Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal; receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal; receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal; First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

19. The data transmission method according to claim 16, wherein: The method further includes: determining a relay terminal at each hop on the multi-hop relay link corresponding to the remote terminal.

20. The data transmission method according to claim 19, wherein: Determining the relay terminal of each hop on the relay link includes one or more of the following: Select a relay terminal for each hop on the relay link; receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link; Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

21. The data transmission method according to claim 19, wherein: If the relay terminal is a first relay terminal, the method further includes: Sending second information to the network side device; The second information includes one or more of the following: an identifier of the remote terminal; A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay; The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

22. The data transmission method according to claim 16, wherein: The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

23. The data transmission method according to claim 16, wherein: The first information includes at least one or more of the following: an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

24. A terminal comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive first information; wherein, The first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal; According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

25. The terminal according to claim 24, wherein: The at least one relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

26. The terminal according to claim 24 or 25, wherein: The receiving of the first information includes at least one of the following: Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal; receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal; First information is received from a second relay terminal, wherein the first information is end-to-end information between the second relay terminal and the remote terminal.

27. The terminal according to claim 24 or 25, wherein: The operations further include: Sending direct communication interface configuration information to the at least one relay terminal, where the direct communication interface configuration information includes any one of the following: The identification information of the relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB transmission between the remote terminal and the network-side device when the SRB and / or DRB is transmitted through the relay terminal; The identifier of the relay terminal, the identifier of any relay terminal between the relay terminal and the network side device on the multi-hop relay link, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

28. The terminal according to claim 24 or 25, wherein: The operations further include: Determine a relay terminal used by each hop on the multi-hop relay link.

29. The terminal according to claim 28, wherein: The operations further include: An identifier of a relay terminal used by each hop on the multi-hop relay link is sent to the first relay terminal.

30. The terminal according to claim 24 or 25, wherein: The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

31. The terminal according to claim 24 or 25, wherein: The first information includes at least one or more of the following: The identifier of the at least one relay terminal, and the SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

32. A network-side device comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Sending a first message; wherein, The first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal; According to the first information, end-to-end SRB and / or DRB data transmission is performed through a multi-hop relay link, and the multi-hop relay link includes the at least one relay terminal.

33. The network side device according to claim 32, wherein: The at least one relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

34. The network side device according to claim 32 or 33, wherein: The operations further include: receiving second information from the first relay terminal; The second information includes one or more of the following: an identifier of the remote terminal; A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay link; The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay link.

35. The network side device according to claim 34, wherein: The operations further include: Do one or more of the following: Determining that the remote terminal accesses the network-side device using a multi-hop relay link; Determine a relay terminal used in each hop when the remote terminal accesses the network-side device using a multi-hop relay link.

36. The network side device according to any one of claims 32 to 35, wherein: The operations may also include one or more of the following: Sending the first information to the first relay terminal; Sending the first information to each relay terminal on the relay link; Sending first information to the remote terminal.

37. The network side device according to any one of claims 32 to 35, wherein: The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

38. The network side device according to any one of claims 32 to 35, wherein: The first information includes at least one or more of the following: an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

39. A terminal comprising a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Receive first information; wherein, The first information is used to configure the identifier of at least one relay terminal, and the corresponding egress direct communication interface radio link control channel Egress PC5 RLC channel when the end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device performs SRB and / or DRB transmission through the relay terminal; According to the first information, data is forwarded for the end-to-end SRB and / or DRB of the remote terminal.

40. The terminal according to claim 39, wherein The relay terminal includes at least one of the following: Any relay terminal used in multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network-side device; Any relay terminal other than the first relay terminal used in multi-hop relay transmission of the end-to-end SRB and / or DRB between the remote terminal and the network-side device; wherein the first relay terminal is the last-hop relay terminal used when the remote terminal sends the end-to-end SRB and / or DRB to the network-side device; The second relay terminal used for multi-hop relay transmission of end-to-end SRB and / or DRB between the remote terminal and the network side device; wherein the second relay terminal is the first-hop relay terminal used when the remote terminal sends end-to-end SRB and / or DRB to the network side device.

41. The terminal according to claim 39 or 40, wherein: The receiving of the first information includes at least one of the following: Receive first information from a network-side device, wherein the first information is end-to-end information between the network-side device and the remote terminal; receiving first information from a first relay terminal, wherein the first information is end-to-end information between the first relay terminal and the remote terminal; receiving first information from a remote terminal, wherein the first information is end-to-end information between the remote terminal and the relay terminal; First information is received from a previous-hop relay terminal and / or a next-hop relay terminal, wherein the first information is end-to-end information between the relay terminal and the previous-hop and / or next-hop relay terminal.

42. The terminal according to claim 39, wherein The operation further includes: determining a relay terminal at each hop on the multi-hop relay link corresponding to the remote terminal.

43. The terminal according to claim 42, wherein: Determining the relay terminal of each hop on the relay link includes one or more of the following: Select a relay terminal for each hop on the relay link; receiving third information sent by the remote terminal, wherein the third information includes a relay terminal identifier of a relay terminal at each hop on the relay link; Receive fourth information sent by a relay terminal at each hop on the relay link, where the fourth information includes a relay terminal identifier of the relay terminal and relay terminal identifiers of a previous-hop relay terminal and / or a next-hop relay terminal of the relay terminal.

44. The terminal according to claim 42, wherein: If the relay terminal is the first relay terminal, the operation further includes: Sending second information to the network side device; The second information includes one or more of the following: an identifier of the remote terminal; A relay terminal identifier used by each hop when the remote terminal accesses the network-side device through a multi-hop relay; The candidate relay terminal information when the remote terminal accesses the network side device through a multi-hop relay.

45. The terminal according to claim 39, wherein The first information includes direct communication relay adaptation layer SRAP configuration information; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, the identifier of the end-to-end SRB and / or DRB of the remote terminal, the identifier of the at least one relay terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when SRB and / or DRB are transmitted through the relay terminal.

46. The terminal according to claim 39, wherein The first information includes at least one or more of the following: an identifier of the at least one relay terminal and SRAP configuration information corresponding to the at least one relay terminal; The SRAP configuration information includes at least one or more of the following: The identifier of the remote terminal, and the Egress PC5 RLC channel corresponding to the end-to-end SRB and / or DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal.

47. A data transmission device, applied to a remote terminal, comprising: A first receiving module is configured to receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when the SRB and / or DRB are transmitted through the relay terminal; A first transmission module is configured to perform end-to-end SRB and / or DRB data transmission via a multi-hop relay link according to the first information, where the multi-hop relay link includes the at least one relay terminal.

48. A data transmission device, applied to a network-side device, comprising: A first sending module is configured to send first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or data radio bearer DRB between the remote terminal and the network side device when performing SRB and / or DRB transmission through the relay terminal; The second transmission module is used to perform end-to-end SRB and / or DRB data transmission through a multi-hop relay link according to the first information, and the multi-hop relay link includes the at least one relay terminal.

49. A data transmission device, applied to a first relay terminal, comprising: A second receiving module is configured to receive first information; wherein the first information is used to configure an identifier of at least one relay terminal, and an egress direct communication interface radio link control channel Egress PC5 RLC channel corresponding to an end-to-end signaling radio bearer SRB and / or a data radio bearer DRB between a remote terminal and a network-side device when SRB and / or DRB transmission is performed through the relay terminal; The third transmission module is used to forward data to the end-to-end SRB and / or DRB of the remote terminal according to the first information.

50. A processor-readable storage medium storing a computer program, wherein the computer program is configured to cause the processor to execute the method of any one of claims 1 to 8, any one of claims 9 to 15, or any one of claims 16 to 23.

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