Information indication method and device and readable storage medium

Abstract

The invention discloses an information indication method and device and a readable storage medium, relates to the technical field of communication, and aims to release multi-path configuration related to a relay terminal when the relay terminal needs to be switched. The method comprises the steps that under the condition that it is determined that a relay terminal needs to be switched, a first notification message is sent to second network equipment through an interface between the network equipment, and the first notification message is used for indicating the second network equipment to release multi-path configuration related to the relay terminal; and / or, under the condition that it is determined that the relay terminal needs to be switched, a second notification message is sent to a remote terminal, and the second notification message is used for indicating the remote terminal to release multi-path configuration related to the relay terminal. According to the embodiment of the invention, the multi-path configuration related to the relay terminal can be released when the relay terminal needs to be switched.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information indication method, device and readable storage medium. Background Art

[0002] like Figure 1 As shown, traditional wireless communication adopts cellular network communication mode, that is, the terminal and the network side equipment transmit uplink and downlink data / control information through the Uu interface. Figure 2 As shown in FIG, direct communication refers to a method in which adjacent terminals can transmit data over a short distance through a direct communication link (also called a Sidelink, bypass or PC5 link). The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a bypass interface, Sidelink interface or PC5 interface). Figure 3 As shown, in order to expand network coverage, it is possible to consider introducing L2 (layer 2) relay. The L2 relay itself can be a terminal with relay function. For UE-to-UE relay (abbreviated as U2U relay, terminal-to-terminal relay), the interface between the Relay UE (relay UE) and the network side device uses the Uu interface, and the interface between the relayed UE (i.e., remote UE) uses a direct communication interface.

[0003] like Figure 4 As shown, after the introduction of U2N relay, in order to improve the peak rate and / or reliability of the remote terminal, a multi-path (multi-path transmission) mechanism is introduced, that is, the terminal simultaneously accesses the network device through the Uu interface and the Relay UE (relay UE).

[0004] Among them, the transmission path used by the terminal to directly connect to the network device through the Uu interface is called a direct path, and the transmission path used by the terminal to connect to the network device through the U2N relay is called an indirect path.

[0005] If the Relay UE and Remote UE are located in different network devices (such as base stations), when the Relay UE needs to be switched, it is necessary to consider how to release the Multi-path configuration. Summary of the invention

[0006] Embodiments of the present application provide an information indication method, device, and readable storage medium to release a multipath configuration related to a relay terminal when the relay terminal needs to be switched.

[0007] In a first aspect, an embodiment of the present application provides an information indication method, which is applied to a first network device, including:

[0008] When it is determined that the relay terminal needs to be switched, sending a first notification message to the second network device through the network device interface, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or,

[0009] In the case of determining that the relay terminal needs to be switched, sending a second notification message to the remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0010] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

[0011] Optionally, the first notification message or the second notification message includes one or more of the following:

[0012] identification information of the relay terminal;

[0013] identification information of the remote terminal;

[0014] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0015] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0016] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0017] Optionally, the identification information of the relay terminal includes one or more of the following:

[0018] The direct communication interface layer 2 (L2) destination address corresponding to the relay terminal;

[0019] The cell identifier and cell radio network temporary identifier (Cell RNTI, C-RNTI) corresponding to the relay terminal; and / or

[0020] The identification information of the remote terminal includes one or more of the following:

[0021] The direct communication interface L2 target address corresponding to the remote terminal;

[0022] The cell identifier and C-RNTI corresponding to the remote terminal.

[0023] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0024] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0025] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0026] and / or

[0027] The path identification information corresponding to the relay terminal includes:

[0028] Path ID or path index.

[0029] Optionally, the method further includes:

[0030] A third notification message sent by the second network device is received, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0031] Optionally, the third notification message is indicated in any of the following ways:

[0032] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0033] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0034] Optionally, the method further comprises one or more of the following steps:

[0035] Sending a switching command to the relay terminal;

[0036] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

[0037] In a second aspect, an embodiment of the present application further provides an information indication method, which is applied to a remote terminal, including:

[0038] receiving a fourth notification message sent by the relay terminal, and sending a fifth notification message to the second network device according to the fourth notification message, or releasing the multipath configuration related to the relay terminal according to the fourth notification message; and / or,

[0039] receiving a second notification message sent by the first network device, and sending a fifth notification message to the second network device according to the second notification message, or releasing a multipath configuration associated with the relay terminal according to the second notification message;

[0040] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0041] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0042] Optionally, the fifth notification message includes one or more of the following:

[0043] identification information of the relay terminal;

[0044] identification information of the remote terminal;

[0045] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0046] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0047] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0048] Optionally, the identification information of the relay terminal includes one or more of the following:

[0049] The direct communication interface L2 target address corresponding to the relay terminal;

[0050] The cell identifier and C-RNTI corresponding to the relay terminal;

[0051] and / or

[0052] The identification information of the remote terminal includes one or more of the following information:

[0053] The direct communication interface L2 target address corresponding to the remote terminal;

[0054] The cell identifier and C-RNTI corresponding to the remote terminal.

[0055] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0056] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0057] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0058] and / or

[0059] The path identification information corresponding to the relay terminal includes:

[0060] Path ID or Path index.

[0061] Optionally, the fifth notification message includes one or more of the following:

[0062] Radio Resource Control (RRC) signaling;

[0063] Medium Access Control (MAC) control element (CE).

[0064] Optionally, the method further includes:

[0065] receiving a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0066] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0067] In a third aspect, an embodiment of the present application further provides an information indication method, which is applied to a second network device, including:

[0068] receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to the relay terminal according to the first notification message; and / or

[0069] receiving a fifth notification message sent by the remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message;

[0070] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0071] Optionally, the first notification message or the fifth notification message includes one or more of the following:

[0072] identification information of the relay terminal;

[0073] identification information of the remote terminal;

[0074] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0075] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0076] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0077] Optionally, the identification information of the relay terminal includes one or more of the following:

[0078] The direct communication interface L2 target address corresponding to the relay terminal;

[0079] The cell identifier and C-RNTI corresponding to the relay terminal;

[0080] and / or

[0081] The identification information of the remote terminal includes one or more of the following information:

[0082] The direct communication interface L2 target address corresponding to the remote terminal;

[0083] The cell identifier and C-RNTI corresponding to the remote terminal.

[0084] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0085] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0086] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0087] and / or

[0088] The path identification information corresponding to the relay terminal includes:

[0089] Path ID or Path index.

[0090] Optionally, the method further includes:

[0091] A third notification message is sent to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0092] Optionally, the third notification message is indicated in any of the following ways:

[0093] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0094] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0095] Optionally, the method further includes:

[0096] Sending a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0097] Receive a reconfiguration completion message sent by the remote terminal.

[0098] In a fourth aspect, an embodiment of the present application further provides an information indication method, which is applied to a relay terminal, including:

[0099] Sending a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal;

[0100] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

[0101] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0102] Optionally, the method further comprises one or more of the following steps:

[0103] Receiving a switching command sent by the first network device;

[0104] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

[0105] In a fifth aspect, an embodiment of the present application further provides an information indication device, which is applied to a first network device, including: a memory, a transceiver, and a processor:

[0106] 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:

[0107] When it is determined that the relay terminal needs to be switched, sending a first notification message to the second network device through the network device interface, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or,

[0108] In the case of determining that the relay terminal needs to be switched, sending a second notification message to the remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0109] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

[0110] Optionally, the first notification message or the second notification message includes one or more of the following:

[0111] identification information of the relay terminal;

[0112] identification information of the remote terminal;

[0113] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0114] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0115] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0116] Optionally, the identification information of the relay terminal includes one or more of the following:

[0117] The direct communication interface L2 target address corresponding to the relay terminal;

[0118] The cell identifier and C-RNTI corresponding to the relay terminal;

[0119] and / or

[0120] The identification information of the remote terminal includes one or more of the following:

[0121] The direct communication interface L2 target address corresponding to the remote terminal;

[0122] The cell identifier and C-RNTI corresponding to the remote terminal.

[0123] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0124] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0125] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0126] and / or

[0127] The path identification information corresponding to the relay terminal includes:

[0128] Path ID or path index.

[0129] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0130] A third notification message sent by the second network device is received, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0131] Optionally, the third notification message is indicated in any of the following ways:

[0132] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0133] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0134] Optionally, the processor is further configured to read the computer program in the memory and perform one or more of the following operations:

[0135] Sending a switching command to the relay terminal;

[0136] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

[0137] In a sixth aspect, an embodiment of the present application provides an information indication device, applied to a remote terminal, including: a memory, a transceiver, and a processor:

[0138] 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:

[0139] receiving a fourth notification message sent by the relay terminal, and sending a fifth notification message to the second network device according to the fourth notification message, or releasing the multipath configuration related to the relay terminal according to the fourth notification message; and / or,

[0140] receiving a second notification message sent by the first network device, and sending a fifth notification message to the second network device according to the second notification message, or releasing a multipath configuration associated with the relay terminal according to the second notification message;

[0141] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0142] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0143] Optionally, the fifth notification message includes one or more of the following:

[0144] identification information of the relay terminal;

[0145] identification information of the remote terminal;

[0146] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0147] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0148] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0149] Optionally, the identification information of the relay terminal includes one or more of the following:

[0150] The direct communication interface L2 target address corresponding to the relay terminal;

[0151] The cell identifier and C-RNTI corresponding to the relay terminal;

[0152] and / or

[0153] The identification information of the remote terminal includes one or more of the following information:

[0154] The direct communication interface L2 target address corresponding to the remote terminal;

[0155] The cell identifier and C-RNTI corresponding to the remote terminal.

[0156] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0157] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0158] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0159] and / or

[0160] The path identification information corresponding to the relay terminal includes:

[0161] Path ID or Path index.

[0162] Optionally, the fifth notification message includes one or more of the following:

[0163] RRC signaling;

[0164] MAC CE.

[0165] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0166] receiving a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0167] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0168] In a seventh aspect, an embodiment of the present application provides an information indication device, which is applied to a second network device, including: a memory, a transceiver, and a processor:

[0169] 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:

[0170] receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to the relay terminal according to the first notification message; and / or

[0171] receiving a fifth notification message sent by the remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message;

[0172] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0173] Optionally, the first notification message or the fifth notification message includes one or more of the following:

[0174] identification information of the relay terminal;

[0175] identification information of the remote terminal;

[0176] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0177] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0178] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0179] Optionally, the identification information of the relay terminal includes one or more of the following:

[0180] The direct communication interface L2 target address corresponding to the relay terminal;

[0181] The cell identifier and C-RNTI corresponding to the relay terminal;

[0182] and / or

[0183] The identification information of the remote terminal includes one or more of the following information:

[0184] The direct communication interface L2 target address corresponding to the remote terminal;

[0185] The cell identifier and C-RNTI corresponding to the remote terminal.

[0186] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0187] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0188] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0189] and / or

[0190] The path identification information corresponding to the relay terminal includes:

[0191] Path ID or Path index.

[0192] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0193] A third notification message is sent to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0194] Optionally, the third notification message is indicated in any of the following ways:

[0195] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0196] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0197] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0198] Sending a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0199] Receive a reconfiguration completion message sent by the remote terminal.

[0200] In an eighth aspect, an embodiment of the present application provides an information indication device, which is applied to a relay terminal, including: a memory, a transceiver, and a processor:

[0201] 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:

[0202] Sending a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal;

[0203] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

[0204] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0205] Optionally, the processor is further configured to read the computer program in the memory and perform one or more of the following operations:

[0206] Receiving a switching command sent by the first network device;

[0207] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

[0208] In a ninth aspect, an embodiment of the present application provides an information indication device, applied to a first network device, including:

[0209] A first sending unit is configured to send a first notification message to a second network device through an interface between network devices when it is determined that the relay terminal needs to be switched, wherein the first notification message is used to instruct the second network device to release a multipath configuration related to the relay terminal; and / or

[0210] A second sending unit, configured to send a second notification message to a remote terminal when it is determined that the relay terminal needs to be switched, wherein the second notification message is used to instruct the remote terminal to release a multipath configuration related to the relay terminal;

[0211] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

[0212] In a tenth aspect, an embodiment of the present application provides an information indication device, applied to a remote terminal, including:

[0213] The first processing unit is configured to receive a fourth notification message sent by the relay terminal, and send a fifth notification message to the second network device according to the fourth notification message, or release a multipath configuration related to the relay terminal according to the fourth notification message;

[0214] and / or,

[0215] A second processing unit is configured to receive a second notification message sent by the first network device, and send a fifth notification message to the second network device according to the second notification message, or release a multipath configuration associated with the relay terminal according to the second notification message;

[0216] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0217] In an eleventh aspect, an embodiment of the present application provides an information indication device, applied to a second network device, including:

[0218] a first processing unit, configured to receive a first notification message sent by a first network device through an interface between network devices, and release a multipath configuration related to a relay terminal according to the first notification message; and / or

[0219] A second processing unit, configured to receive a fifth notification message sent by the remote terminal, and release the multipath configuration related to the relay terminal according to the fifth notification message;

[0220] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0221] In a twelfth aspect, an embodiment of the present application provides an information indication device, applied to a relay terminal, including:

[0222] A first sending unit, configured to send a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct to send a fifth notification message to the second network device or to instruct to release the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct to release the multipath configuration related to the relay terminal;

[0223] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

[0224] In a thirteenth aspect, an embodiment of the present application further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the information indication method described above are implemented.

[0225] In an embodiment of the present application, when it is determined that the relay terminal needs to be switched, the first network device may instruct the second network device or the remote terminal to release the multipath configuration related to the relay terminal, thereby releasing the multipath configuration related to the relay terminal when the relay terminal needs to be switched, thereby avoiding service interruption due to relay switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0226] Figure 1 is a schematic diagram of cellular network communication;

[0227] Figure 2 It is a schematic diagram of direct communication;

[0228] Figure 3 This is a schematic diagram of UE-to-Network Relay;

[0229] Figure 4 It is a schematic diagram of the multipath transmission mechanism;

[0230] Figure 5 It is one of the flow charts of the information indication method provided in the embodiment of the present application;

[0231] Figure 6 This is the second flowchart of the information indication method provided in the embodiment of the present application;

[0232] Figure 7 This is the third flowchart of the information indication method provided in the embodiment of the present application;

[0233] Figure 8 This is the fourth flowchart of the information indication method provided in the embodiment of the present application;

[0234] Fig. 9This is the fifth flow chart of the information indication method provided in the embodiment of the present application;

[0235] Fig.10 This is the sixth flowchart of the information indication method provided in the embodiment of the present application;

[0236] Fig.11 This is the seventh flowchart of the information indication method provided in the embodiment of the present application;

[0237] Fig.12 This is the eighth flowchart of the information indication method provided in the embodiment of the present application;

[0238] Fig.13 It is one of the structural diagrams of the information indication device provided in the embodiment of the present application;

[0239] Fig.14 This is the second structural diagram of the information indication device provided in the embodiment of the present application;

[0240] Fig.15 This is the third structural diagram of the information indication device provided in the embodiment of the present application;

[0241] Fig.16 This is the fourth structural diagram of the information indication device provided in the embodiment of the present application;

[0242] Fig.17 This is the fifth structural diagram of the information indication device provided in the embodiment of the present application;

[0243] Fig.18 This is the sixth structural diagram of the information indication device provided in the embodiment of the present application;

[0244] Fig.19 This is the seventh structural diagram of the information indication device provided in the embodiment of the present application;

[0245] Fig. 20 This is the eighth structural diagram of the information indication device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0246] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0247] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0248] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0249] The embodiments of the present application provide an information indication method and device for releasing a multipath configuration related to a relay terminal when the relay terminal needs to be switched.

[0250] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0251] See also Figure 5 , Figure 5 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a first network device, such as Figure 5 As shown, the following steps are included:

[0252] Step 501: When it is determined that the relay terminal needs to be switched, a first notification message is sent to a second network device through an interface between network devices, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or, when it is determined that the relay terminal needs to be switched, a second notification message is sent to a remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0253] The first network device includes a network device (such as a base station) serving the relay terminal, and the second network device includes a network device (such as a base station) serving the remote terminal other than the first network device, or the second network device includes a network device (such as a base station) providing multipath configuration information to the remote terminal. The interface between network devices may be, for example, an Xn and / or F1 interface.

[0254] The first notification message or the second notification message includes one or more of the following:

[0255] identification information of the relay terminal;

[0256] identification information of the remote terminal;

[0257] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0258] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0259] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0260] The identification information of the relay terminal includes one or more of the following:

[0261] The direct communication interface L2 destination address corresponding to the relay terminal, for example, the source L2 address or the destination L2 address;

[0262] The cell identifier and C-RNTI corresponding to the relay terminal;

[0263] The identification information of the remote terminal includes one or more of the following:

[0264] The direct communication interface L2 destination address corresponding to the remote terminal, for example, the source L2 address or the destination L2 address;

[0265] The cell identifier and C-RNTI corresponding to the remote terminal.

[0266] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0267] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0268] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0269] The path identification information corresponding to the relay terminal includes: Path ID or Path index.

[0270] In an embodiment of the present application, when it is determined that the relay terminal needs to be switched, the first network device may instruct the second network device or the remote terminal to release the multipath configuration related to the relay terminal, thereby releasing the multipath configuration related to the relay terminal when the relay terminal needs to be switched, thereby avoiding service interruption due to relay switching.

[0271] Optionally, in an embodiment of the present application, the first network device may also receive a third notification message sent by the second network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0272] The third notification message is indicated in any of the following ways:

[0273] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0274] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0275] Optionally, the first network device may also send a switching command to the relay terminal; and / or send a second indication to the relay terminal, wherein the second indication is used to instruct the relay terminal to switch.

[0276] See also Figure 6 , Figure 6 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a remote terminal, such as Figure 6 As shown, the following steps are included:

[0277] Step 601: Receive a fourth notification message sent by a relay terminal, and send a fifth notification message to a second network device according to the fourth notification message, or release a multipath configuration associated with the relay terminal according to the fourth notification message; and / or, receive a second notification message sent by a first network device, and send a fifth notification message to a second network device according to the second notification message, or release the multipath configuration associated with the relay terminal according to the second notification message;

[0278] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0279] In order to reduce air interface signaling overhead, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0280] The fifth notification message may be RRC signaling and / or MAC CE, and may include one or more of the following:

[0281] identification information of the relay terminal;

[0282] identification information of the remote terminal;

[0283] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0284] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0285] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0286] The identification information of the relay terminal includes one or more of the following:

[0287] The direct communication interface L2 destination address corresponding to the relay terminal, for example, the source L2 address or the destination L2 address;

[0288] The cell identifier and C-RNTI corresponding to the relay terminal;

[0289] The identification information of the remote terminal includes one or more of the following:

[0290] The direct communication interface L2 destination address corresponding to the remote terminal, for example, the source L2 address or the destination L2 address;

[0291] The cell identifier and C-RNTI corresponding to the remote terminal.

[0292] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0293] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0294] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0295] The path identification information corresponding to the relay terminal includes: Path ID or Path index.

[0296] In an embodiment of the present application, when it is determined that the relay terminal needs to be switched, the first network device may instruct the second network device or the remote terminal to release the multipath configuration related to the relay terminal, thereby releasing the multipath configuration related to the relay terminal when the relay terminal needs to be switched, thereby avoiding service interruption due to relay switching.

[0297] Optionally, in an embodiment of the present application, the remote terminal may also receive a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal, and send a reconfiguration completion message to the second network device based on the reconfiguration message.

[0298] See also Figure 7 , Figure 7 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a second network device, such as Figure 7 As shown, the following steps are included:

[0299] Step 701: receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to a relay terminal according to the first notification message; and / or receiving a fifth notification message sent by a remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message;

[0300] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0301] Among them, the content included in the first notification message or the fifth notification message can refer to the description of the aforementioned method embodiment.

[0302] In an embodiment of the present application, when it is determined that the relay terminal needs to be switched, the first network device may instruct the second network device or the remote terminal to release the multipath configuration related to the relay terminal, thereby releasing the multipath configuration related to the relay terminal when the relay terminal needs to be switched, thereby avoiding service interruption due to relay switching.

[0303] Optionally, in an embodiment of the present application, the second network device may further send a third notification message to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0304] The third notification message is indicated in any of the following ways:

[0305] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0306] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0307] Optionally, in an embodiment of the present application, the second network device may also send a reconfiguration message to the remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal and receive a reconfiguration completion message sent by the remote terminal.

[0308] Optionally, in the embodiment of the present application, the second network device sends the third notification message to the first network device after the second network device receives a reconfiguration completion message from the remote terminal.

[0309] See also Figure 8 , Figure 8 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a relay terminal, such as Figure 8 As shown, the following steps are included:

[0310] Step 801: Send a fourth notification message to a remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to a second network device or to instruct releasing a multipath configuration related to a relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal;

[0311] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

[0312] To save air interface signaling overhead, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0313] In an embodiment of the present application, when it is determined that the relay terminal needs to be switched, the first network device may instruct the second network device or the remote terminal to release the multipath configuration related to the relay terminal, thereby releasing the multipath configuration related to the relay terminal when the relay terminal needs to be switched, thereby avoiding service interruption due to relay switching.

[0314] Optionally, in the embodiment of the present application, the embodiment of the present application further includes one or more of the following steps:

[0315] Receiving a switching command sent by the first network device;

[0316] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

[0317] Accordingly, the relay terminal may perform corresponding switching.

[0318] In many scenarios, such as the Inter-gNB scenario, the Relay UE and Remote UE are located in different base stations. If it is determined that the Relay UE needs to be switched, how to release the Multi-path configuration needs to be considered.

[0319] In one embodiment of the present application, the Multi-path configuration related to the Relay UE is released through the interaction between network device interfaces. In this embodiment, Remote UE1 and Remote UE2 are two remote terminals served by the Relay UE, network device 1 is a network device serving the Relay UE, and network device 2 is a network device serving the Remote UE. Fig. 9 As shown, this embodiment may include:

[0320] Step 901: Network device 1 performs handover decision for Relay UE.

[0321] The network device 1 determines whether the Relay UE needs to be switched. If it is necessary to switch, step 902 is executed.

[0322] Step 902: Network device 1 sends a first message (corresponding to a first notification message) to network device 2 through the network device interface.

[0323] In this step, the network device serving the Relay UE sends a first message through an interface between network devices (such as an Xn interface) to notify the network device serving the Remote UE to release the Multi-path configuration related to the Relay UE.

[0324] Specifically, the first message content includes one or a combination of the following contents:

[0325] Relay UE identification information;

[0326] Remote UE identification information;

[0327] Identification information of the direct communication link between the Relay UE and the Remote UE;

[0328] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0329] Instructions for releasing the Multi-path configuration.

[0330] in:

[0331] The identification information of the relay UE may be one of the following:

[0332] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0333] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0334] The identification information of the Remote UE can be one of the following:

[0335] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0336] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0337] The path identification information corresponding to the Relay UE in the Multi-path scenario includes: Path ID or Path index.

[0338] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0339] The direct communication interface source L2 address corresponding to the Relay UE and the direct communication interface target L2 address corresponding to the Remote UE;

[0340] The source L2 address of the direct communication interface corresponding to the Remote UE and the target L2 address of the direct communication interface corresponding to the Relay UE.

[0341] Step 903: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0342] In this step, the reconfiguration message may specifically be an RRC reconfiguration message, the main purpose of which is to release the Multi-path configuration related to the RelayUE.

[0343] Step 904: Multi-path release is completed.

[0344] In this step, one or more Remote UEs served by the Relay UE may send an RRC reconfiguration completion message to the network device 2 to indicate that the Multi-path release related to the Relay UE is completed.

[0345] Step 905: Network device 2 sends a fourth message (corresponding to the third notification message) to network device 1.

[0346] In this step, the network device 2 sends a fourth message through the network device interface (such as Xn and / or F1 interface) to notify the network device 1 serving the Relay UE.

[0347] The content of the fourth message may be one of the following:

[0348] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal.

[0349] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0350] Step 906: The network device 1 sends a switching command to the Relay UE.

[0351] Specifically, the handover command may be an RRC reconfiguration message.

[0352] In one embodiment of the present application, the Multi-path configuration related to the Relay UE is released by the Remote UE reporting. In this embodiment, Remote UE1 and Remote UE2 are two remote terminals served by the Relay UE, network device 1 is a network device serving the Relay UE, and network device 2 is a network device serving the Remote UE. Fig.10 As shown, this embodiment may include:

[0353] Step 1001: Network device 1 performs handover decision for Relay UE.

[0354] The network device 1 determines whether the Relay UE needs to be switched. If it is necessary to switch, step 1002 is executed.

[0355] Step 1002: Network device 1 sends a switching command to the Relay UE.

[0356] In this step, the handover command may be an RRC reconfiguration message, which is used to instruct the Relay UE to initiate a handover.

[0357] Step 1003: The Relay UE sends a second message (corresponding to the fourth notification message) to one or more Remote UEs served by it.

[0358] The second message may reuse NotificationMessageSidelink, or may be a newly designed RRC message.

[0359] Optionally, in order to reduce air interface signaling overhead, the relay UE may send the second message in two ways:

[0360] 1) The Relay UE sends the second message only to some of the Remote UEs it serves;

[0361] 2) When sending a second message to the Remote UE, the second message may carry indication information, indicating whether the Remote UE needs to report a third message (corresponding to the fifth notification message) to the network device serving it or for indicating the release of the multipath configuration related to the relay terminal.

[0362] Step 1004: The Remote UE sends a third message (corresponding to the fifth notification message) to the network device 2 served by it.

[0363] After the Remote UE receives the second message sent by the Relay UE, if it needs to send a third message, it sends the third message to the network device 2 serving it to notify the network device 2 to release the Multi-path configuration related to the Relay UE.

[0364] Specifically, how the Remote UE determines whether the third message needs to be sent is related to step 1003. For example, if there is no limitation in step 1003, all Remote UEs served by the Relay UE need to send the third message to the network device. If there is a limitation in step 1003, such as the second message carries indication information, the Remote UE determines whether the third message needs to be sent to the network device according to the indication information in the second message.

[0365] Specifically, the third message content includes one or a combination of the following contents:

[0366] Relay UE identification information;

[0367] Remote UE identification information;

[0368] Identification information of the direct communication link between the Relay and Remote UE;

[0369] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0370] Instructions for releasing the Multi-path configuration.

[0371] in:

[0372] The identification information of the relay UE may be one of the following:

[0373] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0374] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0375] The identification information of the Remote UE can be one of the following:

[0376] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0377] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0378] The path identification information corresponding to the Relay UE in the Multi-path scenario includes: Path ID or Path index.

[0379] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0380] The direct communication interface source L2 address corresponding to the Relay UE and the direct communication interface target L2 address corresponding to the Remote UE;

[0381] The source L2 address of the direct communication interface corresponding to the Remote UE and the target L2 address of the direct communication interface corresponding to the Relay UE.

[0382] Step 1005: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0383] In this step, the reconfiguration message may specifically be an RRC reconfiguration message, the main purpose of which is to release the Multi-path configuration related to the RelayUE.

[0384] Step 1006: Multi-path release is completed.

[0385] In this step, one or more Remote UEs served by the Relay UE may send an RRC reconfiguration completion message to the network device 2 to indicate that the Multi-path release related to the Relay UE is completed.

[0386] In one embodiment of the present application, the Multi-path configuration related to the Relay UE is released by the Remote UE reporting. In this embodiment, Remote UE1 and Remote UE2 are two remote terminals served by the Relay UE, network device 1 is a network device serving the Relay UE, and network device 2 is a network device serving the Remote UE. Fig.11 As shown, this embodiment may include:

[0387] Step 1101: Network device 1 performs handover decision for Relay UE.

[0388] The network device 1 determines whether the Relay UE needs to be switched. If it is necessary to switch, step 1102 is executed.

[0389] Step 1102: Network device 1 sends an indication message to the Relay UE.

[0390] In this step, the indication message is used to indicate that the Relay UE needs to be switched.

[0391] Step 1103: The Relay UE sends a second message (corresponding to the fourth notification message) to one or more Remote UEs served by it.

[0392] The second message may reuse NotificationMessageSidelink, or may be a newly designed RRC message.

[0393] When the Relay UE sends the second message, there are two ways:

[0394] 1) The Relay UE sends the second message only to some of the Remote UEs it serves;

[0395] 2) When sending a second message to the Remote UE, the second message may carry indication information, indicating whether the Remote UE needs to report a third message (corresponding to the fifth notification message) to the network device serving it or for indicating the release of the multipath configuration related to the relay terminal.

[0396] Step 1104: The Remote UE sends a third message (corresponding to the fifth notification message) to the network device 2 served by it.

[0397] After the Remote UE receives the second message sent by the Relay UE, if it needs to send a third message, it sends the third message to the network device 2 serving it to notify the network device 2 to release the Multi-path configuration related to the Relay UE.

[0398] Specifically, how the Remote UE determines whether the third message needs to be sent is related to step 1103. For example, if there is no limitation in step 1103, all Remote UEs served by the Relay UE need to send the third message to the network device. If there is a limitation in step 1103, such as the second message carries indication information, the Remote UE determines whether the third message needs to be sent to the network device according to the indication information in the second message.

[0399] Specifically, the third message content includes one or a combination of the following contents:

[0400] Relay UE identification information;

[0401] Remote UE identification information;

[0402] Identification information of the direct communication link between the Relay and Remote UE;

[0403] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0404] Instructions for releasing the Multi-path configuration.

[0405] in:

[0406] The identification information of the Relay UE may be one of the following:

[0407] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0408] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0409] The identification information of the Remote UE can be one of the following:

[0410] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0411] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0412] The path identification information corresponding to the Relay UE in the Multi-path scenario includes: Path ID or Path index.

[0413] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0414] The direct communication interface source L2 address corresponding to the Relay UE and the direct communication interface target L2 address corresponding to the Remote UE;

[0415] The source L2 address of the direct communication interface corresponding to the Remote UE and the target L2 address of the direct communication interface corresponding to the Relay UE.

[0416] Step 1105: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0417] In this step, the reconfiguration message may specifically be an RRC reconfiguration message, the main purpose of which is to release the Multi-path configuration related to the RelayUE.

[0418] Step 1106: Multi-path release is completed.

[0419] In this step, one or more Remote UEs served by the Relay UE may send an RRC reconfiguration completion message to the network device 2 to indicate that the Multi-path release related to the Relay UE is completed.

[0420] Step 1107: Network device 2 sends a fourth message (corresponding to the third notification message) to network device 1.

[0421] In this step, the network device 2 sends a fourth message through the network device interface (such as Xn and / or F1 interface) to notify the network device 1 serving the Relay UE.

[0422] The content of the fourth message may be one of the following:

[0423] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal.

[0424] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0425] Step 1108: The network device 1 sends a switching command to the Relay UE.

[0426] Specifically, the handover command may be an RRC reconfiguration message.

[0427] In one embodiment of the present application, Remote UE1 and Remote UE2 are two remote terminals served by Relay UE, Network device 1 is a network device serving Relay UE, and Network device 2 is a network device serving Remote UE. Fig.12 As shown, this embodiment may include:

[0428] Step 1201: Network device 1 performs handover decision for Relay UE.

[0429] The network device 1 determines whether the Relay UE needs to be switched. If it is necessary to switch, step 1202 is executed.

[0430] Step 1202: Network device 1 sends a second notification message to Remote UE.

[0431] Optionally, the Remote UE has the following two processing methods:

[0432] Mode 1: The Remote UE releases the Multi-path configuration related to the Relay UE.

[0433] Mode 2: The Remote UE sends a fifth notification message to the network device 2, and the network device 2 releases the Multi-path configuration related to the Relay UE. Furthermore, the Remote UE may also release the Multi-path configuration related to the Relay UE.

[0434] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0435] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a 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 a 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 a "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 language and / or data with a wireless 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, and a user device, but is not limited in the embodiments of the present application.

[0436] The network device involved in the embodiment of the present application 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 device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve 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 device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network 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 arranged geographically separately.

[0437] Network devices and terminal devices can each use one or more antennas for multi-input multi-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0438] like Fig.13 As shown, the information indication device of the embodiment of the present application is applied to the first network device, including: a processor 1300, which is used to read the program in the memory 1320 and execute the following process:

[0439] When it is determined that the relay terminal needs to be switched, sending a first notification message to the second network device through the network device interface, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or,

[0440] In the case of determining that the relay terminal needs to be switched, sending a second notification message to the remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0441] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

[0442] The transceiver 1310 is configured to receive and send data under the control of the processor 1300 .

[0443] Among them, Fig.13In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1300 and memory represented by memory 1320. The bus architecture may also link together various other circuits such as peripherals, 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 1310 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 when performing operations.

[0444] The processor 1300 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.

[0445] The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 can store data used by the processor 1300 when performing operations.

[0446] Optionally, the first notification message or the second notification message includes one or more of the following:

[0447] identification information of the relay terminal;

[0448] identification information of the remote terminal;

[0449] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0450] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0451] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0452] Optionally, the identification information of the relay terminal includes one or more of the following:

[0453] The direct communication interface L2 target address corresponding to the relay terminal;

[0454] The cell identifier and C-RNTI corresponding to the relay terminal;

[0455] and / or

[0456] The identification information of the remote terminal includes one or more of the following:

[0457] The direct communication interface L2 target address corresponding to the remote terminal;

[0458] The cell identifier and C-RNTI corresponding to the remote terminal.

[0459] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0460] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0461] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0462] and / or

[0463] The path identification information corresponding to the relay terminal includes:

[0464] Path ID or Path index.

[0465] The processor 1300 is further configured to read the program and execute the following steps:

[0466] A third notification message sent by the second network device is received, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0467] Optionally, the third notification message is indicated in any of the following ways:

[0468] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0469] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0470] The processor 1300 is further configured to read the program and perform one or more of the following operations:

[0471] Sending a switching command to the relay terminal;

[0472] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

[0473] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0474] like Fig.14 As shown, the information indication device of the embodiment of the present application is applied to the second network device, including: a processor 1400, which is used to read the program in the memory 1420 and execute the following process:

[0475] receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to the relay terminal according to the first notification message; and / or

[0476] receiving a fifth notification message sent by the remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message;

[0477] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0478] The transceiver 1410 is configured to receive and send data under the control of the processor 1400 .

[0479] Among them, Fig.14 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 1400 and memory represented by memory 1420. The bus architecture may also link together various other circuits such as peripherals, 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 1410 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 when performing operations.

[0480] The processor 1400 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.

[0481] The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 can store data used by the processor 1400 when performing operations.

[0482] Optionally, the first notification message or the fifth notification message includes one or more of the following:

[0483] identification information of the relay terminal;

[0484] identification information of the remote terminal;

[0485] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0486] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0487] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0488] Optionally, the identification information of the relay terminal includes one or more of the following:

[0489] The direct communication interface L2 target address corresponding to the relay terminal;

[0490] The cell identifier and C-RNTI corresponding to the relay terminal;

[0491] and / or

[0492] The identification information of the remote terminal includes one or more of the following information:

[0493] The direct communication interface L2 target address corresponding to the remote terminal;

[0494] The cell identifier and C-RNTI corresponding to the remote terminal.

[0495] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0496] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0497] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0498] and / or

[0499] The path identification information corresponding to the relay terminal includes:

[0500] Path ID or Path index.

[0501] The processor 1400 is further configured to read the program and perform the following operations:

[0502] A third notification message is sent to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

[0503] Optionally, the third notification message is indicated in any of the following ways:

[0504] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0505] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0506] The processor 1400 is further configured to read the program and perform the following operations:

[0507] Sending a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0508] Receive a reconfiguration completion message sent by the remote terminal.

[0509] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0510] like Fig.15 As shown, the information indication device of the embodiment of the present application is applied to a relay terminal, including: a processor 1500, configured to read a program in a memory 1520, and execute the following process:

[0511] Sending a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal;

[0512] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

[0513] The transceiver 1510 is configured to receive and send data under the control of the processor 1500 .

[0514] Among them, Fig.15 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1500 and various circuits of memory represented by memory 1520 are linked together. The bus architecture may also link together various other circuits such as peripherals, 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 1510 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1530 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0515] The processor 1500 is responsible for managing the bus architecture and general processing, and the memory 1520 can store data used by the processor 1500 when performing operations.

[0516] The processor 1500 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.

[0517] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0518] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0519] The processor 1500 is further configured to read the program and perform one or more of the following operations:

[0520] Receiving a switching command sent by the first network device;

[0521] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

[0522] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0523] like Fig.16 As shown, the information indication device of the embodiment of the present application is applied to a remote terminal, including: a processor 1600, which is used to read the program in the memory 1620 and execute the following process:

[0524] receiving a fourth notification message sent by the relay terminal, and sending a fifth notification message to the second network device according to the fourth notification message, or releasing the multipath configuration related to the relay terminal according to the fourth notification message; and / or,

[0525] receiving a second notification message sent by the first network device, and sending a fifth notification message to the second network device according to the second notification message, or releasing a multipath configuration associated with the relay terminal according to the second notification message;

[0526] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0527] The transceiver 1610 is configured to receive and send data under the control of the processor 1600 .

[0528] Among them, Fig.16In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1600 and various circuits of memory represented by memory 1620 are linked together. The bus architecture may also link together various other circuits such as peripherals, 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 1610 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1630 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0529] The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 can store data used by the processor 1600 when performing operations.

[0530] The processor 1600 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.

[0531] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0532] The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0533] The fifth notification message includes one or more of the following:

[0534] identification information of the relay terminal;

[0535] identification information of the remote terminal;

[0536] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0537] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0538] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0539] The identification information of the relay terminal includes one or more of the following:

[0540] The direct communication interface L2 target address corresponding to the relay terminal;

[0541] The cell identifier and C-RNTI corresponding to the relay terminal;

[0542] and / or

[0543] The identification information of the remote terminal includes one or more of the following information:

[0544] The direct communication interface L2 target address corresponding to the remote terminal;

[0545] The cell identifier and C-RNTI corresponding to the remote terminal.

[0546] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0547] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0548] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0549] and / or

[0550] The path identification information corresponding to the relay terminal includes:

[0551] Path ID or Path index.

[0552] The fifth notification message includes one or more of the following:

[0553] RRC signaling;

[0554] MAC CE.

[0555] The processor 1600 is further configured to read the program and execute the following steps:

[0556] receiving a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0557] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0558] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0559] like Fig.17 As shown, the information indication device of the embodiment of the present application is applied to a remote terminal, including:

[0560] The first processing unit 1701 is configured to receive a fourth notification message sent by the relay terminal, and send a fifth notification message to the second network device according to the fourth notification message, or release a multipath configuration related to the relay terminal according to the fourth notification message;

[0561] and / or,

[0562] The second processing unit 1702 is configured to receive a second notification message sent by the first network device, and send a fifth notification message to the second network device according to the second notification message, or release the multipath configuration associated with the relay terminal according to the second notification message;

[0563] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

[0564] Optionally, the fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0565] Optionally, the fifth notification message includes one or more of the following:

[0566] identification information of the relay terminal;

[0567] identification information of the remote terminal;

[0568] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0569] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0570] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0571] Optionally, the identification information of the relay terminal includes one or more of the following:

[0572] The direct communication interface L2 target address corresponding to the relay terminal;

[0573] The cell identifier and C-RNTI corresponding to the relay terminal;

[0574] and / or

[0575] The identification information of the remote terminal includes one or more of the following information:

[0576] The direct communication interface L2 target address corresponding to the remote terminal;

[0577] The cell identifier and C-RNTI corresponding to the remote terminal.

[0578] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0579] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0580] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0581] and / or

[0582] The path identification information corresponding to the relay terminal includes:

[0583] Path ID or Path index.

[0584] Optionally, the fifth notification message includes one or more of the following:

[0585] Radio Resource Control (RRC) signaling;

[0586] Media Access Control Controller MAC CE.

[0587] Optionally, the device may further include:

[0588] A first receiving unit, configured to receive a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0589] The first sending unit is used to send a reconfiguration completion message to the second network device according to the reconfiguration message.

[0590] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0591] like Fig.18 As shown, the information indication device of the embodiment of the present application is applied to the first network device, including:

[0592] The first sending unit 1801 is used to send a first notification message to the second network device through the network device interface when it is determined that the relay terminal needs to be switched, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or,

[0593] The second sending unit 1802 is used to send a second notification message to the remote terminal when it is determined that the relay terminal needs to be switched, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal;

[0594] The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

[0595] Optionally, the first notification message or the second notification message includes one or more of the following:

[0596] identification information of the relay terminal;

[0597] identification information of the remote terminal;

[0598] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0599] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0600] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0601] Optionally, the identification information of the relay terminal includes one or more of the following:

[0602] The direct communication interface L2 target address corresponding to the relay terminal;

[0603] The cell identifier and C-RNTI corresponding to the relay terminal;

[0604] and / or

[0605] The identification information of the remote terminal includes one or more of the following:

[0606] The direct communication interface L2 target address corresponding to the remote terminal;

[0607] The cell identifier and C-RNTI corresponding to the remote terminal.

[0608] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0609] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0610] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0611] and / or

[0612] The path identification information corresponding to the relay terminal includes:

[0613] Path ID or path index.

[0614] Optionally, the device may further include:

[0615] The first receiving unit is used to receive a third notification message sent by the second network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is completed.

[0616] Optionally, the third notification message is indicated in any of the following ways:

[0617] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0618] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0619] Optionally, the device may further include:

[0620] The third sending unit is configured to perform one or more of the following steps:

[0621] Sending a switching command to the relay terminal;

[0622] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

[0623] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0624] like Fig.19 As shown, the information indication device of the embodiment of the present application is applied to the second network device, including:

[0625] The first processing unit 1901 is configured to receive a first notification message sent by a first network device through an interface between network devices, and release a multipath configuration related to the relay terminal according to the first notification message; and / or

[0626] The second processing unit 1902 is configured to receive a fifth notification message sent by the remote terminal, and release the multipath configuration related to the relay terminal according to the fifth notification message;

[0627] Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0628] Optionally, the first notification message or the fifth notification message includes one or more of the following:

[0629] identification information of the relay terminal;

[0630] identification information of the remote terminal;

[0631] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0632] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0633] The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

[0634] Optionally, the identification information of the relay terminal includes one or more of the following:

[0635] The direct communication interface L2 target address corresponding to the relay terminal;

[0636] The cell identifier and C-RNTI corresponding to the relay terminal;

[0637] and / or

[0638] The identification information of the remote terminal includes one or more of the following information:

[0639] The direct communication interface L2 target address corresponding to the remote terminal;

[0640] The cell identifier and C-RNTI corresponding to the remote terminal.

[0641] Optionally, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0642] The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal;

[0643] The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal;

[0644] and / or

[0645] The path identification information corresponding to the relay terminal includes:

[0646] Path ID or Path index.

[0647] Optionally, the device may further include:

[0648] The first sending unit is used to send a third notification message to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is completed.

[0649] The third notification message is indicated in any of the following ways:

[0650] 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal;

[0651] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0652] Optionally, the device may further include:

[0653] A first sending unit, configured to send a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release a multipath configuration related to the relay terminal;

[0654] The first receiving unit is used to receive a reconfiguration completion message sent by the remote terminal.

[0655] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0656] like Fig. 20 As shown, the information indication device of the embodiment of the present application is applied to a relay terminal, including:

[0657] The first sending unit 2001 is used to send a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct to send a fifth notification message to the second network device or to instruct to release the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct to release the multipath configuration related to the relay terminal;

[0658] The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

[0659] The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

[0660] Optionally, the device may further include a first receiving form, configured to perform one or more of the following operations:

[0661] Receiving a switching command sent by the first network device;

[0662] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

[0663] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0664] 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 application is essentially or the part that contributes to the prior art 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, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0665] An embodiment of the present application further provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned information indication method when executing the program.

[0666] The embodiment of the present application also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned information indication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. Among them, the 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 disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0667] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0668] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0669] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An information indication method, characterized in that: Applied to a first network device, comprising: When it is determined that the relay terminal needs to be switched, sending a first notification message to the second network device through the network device interface, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or, In the case of determining that the relay terminal needs to be switched, sending a second notification message to the remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

2. The method according to claim 1, characterized in that The first notification message or the second notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

3. The method according to claim 2, characterized in that The identification information of the relay terminal includes one or more of the following: Direct communication interface layer 2 L2 target address corresponding to the relay terminal; The cell identifier and cell radio network temporary identifier C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

4. The method according to claim 2 or 3, characterized in that: The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or path index.

5. The method according to claim 1, characterized in that The method further comprises: A third notification message sent by the second network device is received, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

6. The method according to claim 5, characterized in that The third notification message is indicated in any of the following ways: 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal; N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

7. The method according to claim 5, characterized in that The method further comprises one or more of the following steps: Sending a switching command to the relay terminal; A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

8. An information indication method, characterized in that: Applied to remote terminals, including: receiving a fourth notification message sent by the relay terminal, and sending a fifth notification message to the second network device according to the fourth notification message, or releasing the multipath configuration related to the relay terminal according to the fourth notification message; and / or, receiving a second notification message sent by the first network device, and sending a fifth notification message to the second network device according to the second notification message, or releasing a multipath configuration associated with the relay terminal according to the second notification message; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

9. The method according to claim 8, characterized in that The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

10. The method according to claim 8, characterized in that The fifth notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

11. The method according to claim 10, characterized in that The identification information of the relay terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the relay terminal; The cell identifier and C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following information: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

12. The method according to claim 10 or 11, characterized in that: The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or Path index.

13. The method according to claim 8, characterized in that The fifth notification message includes one or more of the following: Radio Resource Control RRC signaling; Media Access Control Controller MAC CE.

14. The method according to claim 8, characterized in that The method further comprises: receiving a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

15. An information indication method, characterized in that: Applied to the second network device, comprising: receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to the relay terminal according to the first notification message; and / or, receiving a fifth notification message sent by the remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message; Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

16. The method according to claim 15, characterized in that The first notification message or the fifth notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

17. The method according to claim 16, characterized in that The identification information of the relay terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the relay terminal; The cell identifier and C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following information: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

18. The method according to claim 16 or 17, characterized in that The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or Path index.

19. The method according to claim 15, characterized in that The method further comprises: A third notification message is sent to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

20. The method according to claim 19, characterized in that The third notification message is indicated in any of the following ways: 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal; N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

21. The method according to claim 15, characterized in that The method further comprises: Sending a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; Receive a reconfiguration completion message sent by the remote terminal.

22. An information indication method, characterized in that: Applicable to relay terminals, including: Sending a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal; The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

23. The method according to claim 22, characterized in that The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

24. The method according to claim 22, characterized in that The method further comprises one or more of the following steps: receiving a switching command sent by the first network device; A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

25. An information indicating device, characterized in that: Applied to a first network 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: When it is determined that the relay terminal needs to be switched, sending a first notification message to the second network device through the network device interface, wherein the first notification message is used to instruct the second network device to release the multipath configuration related to the relay terminal; and / or, In the case of determining that the relay terminal needs to be switched, sending a second notification message to the remote terminal, wherein the second notification message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

26. The device according to claim 25, characterized in that The first notification message or the second notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

27. The device according to claim 26, characterized in that The identification information of the relay terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the relay terminal; The cell identifier and C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

28. The device according to claim 26 or 27, characterized in that The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or path index.

29. The device according to claim 25, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: A third notification message sent by the second network device is received, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

30. The device according to claim 29, characterized in that The third notification message is indicated in any of the following ways: 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal; N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

31. The device according to claim 29, characterized in that The processor is further configured to read the computer program in the memory and perform one or more of the following operations: Sending a switching command to the relay terminal; A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform switching.

32. An information indicating device, characterized in that: Applied to remote terminals, including: memory, transceiver, 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: receiving a fourth notification message sent by the relay terminal, and sending a fifth notification message to the second network device according to the fourth notification message, or releasing the multipath configuration related to the relay terminal according to the fourth notification message; and / or, receiving a second notification message sent by the first network device, and sending a fifth notification message to the second network device according to the second notification message, or releasing a multipath configuration associated with the relay terminal according to the second notification message; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

33. The device according to claim 32, characterized in that The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

34. The device according to claim 32, characterized in that The fifth notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

35. The device according to claim 34, characterized in that The identification information of the relay terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the relay terminal; The cell identifier and C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following information: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

36. The device according to claim 34 or 35, characterized in that The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or Path index.

37. The device according to claim 35, characterized in that The fifth notification message includes one or more of the following: RRC signaling; MAC CE.

38. The device according to claim 32, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: receiving a reconfiguration message sent by the second network device, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

39. An information indicating device, characterized in that: Applied to the second network 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: receiving a first notification message sent by a first network device through an interface between network devices, and releasing a multipath configuration related to the relay terminal according to the first notification message; and / or receiving a fifth notification message sent by the remote terminal, and releasing the multipath configuration related to the relay terminal according to the fifth notification message; Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

40. The device according to claim 39, characterized in that The first notification message or the fifth notification message includes one or more of the following: identification information of the relay terminal; identification information of the remote terminal; Identification information of the direct communication link between the relay terminal and the remote terminal; In a multi-path transmission scenario, the path identification information corresponding to the relay terminal; The first indication is used to indicate the release of the multipath configuration related to the relay terminal.

41. The device according to claim 40, characterized in that The identification information of the relay terminal includes one or more of the following: The direct communication interface L2 target address corresponding to the relay terminal; The cell identifier and C-RNTI corresponding to the relay terminal; and / or The identification information of the remote terminal includes one or more of the following information: The direct communication interface L2 target address corresponding to the remote terminal; The cell identifier and C-RNTI corresponding to the remote terminal.

42. The device according to claim 40 or 41, characterized in that The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following: The direct communication interface source L2 address corresponding to the relay terminal and the direct communication interface target L2 address corresponding to the remote terminal; The source L2 address of the direct communication interface corresponding to the remote terminal and the target L2 address of the direct communication interface corresponding to the relay terminal; and / or The path identification information corresponding to the relay terminal includes: Path ID or Path index.

43. The device according to claim 39, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: A third notification message is sent to the first network device, wherein the third notification message is used to indicate to the first network device that the release of the multipath configuration related to the relay terminal is complete.

44. The device according to claim 43, characterized in that The third notification message is indicated in any of the following ways: 1-bit identification information, used to indicate that all multipath configurations related to the relay terminal have been released, or used to indicate that a switching operation can be performed on the relay terminal; N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration associated with the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

45. The device according to claim 39, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: Sending a reconfiguration message to a remote terminal, wherein the reconfiguration message is used to instruct the remote terminal to release the multipath configuration related to the relay terminal; Receive a reconfiguration completion message sent by the remote terminal.

46. ​​An information indicating device, characterized in that: Applied to relay terminals, including: memory, transceiver, 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 fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct sending a fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct releasing the multipath configuration related to the relay terminal; The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

47. The device according to claim 46, characterized in that The fourth notification message includes a third indication, wherein the third indication is used to indicate sending the fifth notification message to the second network device or to indicate releasing the multipath configuration related to the relay terminal.

48. The device according to claim 46, characterized in that The processor is further configured to read the computer program in the memory and perform one or more of the following operations: receiving a switching command sent by the first network device; A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to switch.

49. An information indicating device, characterized in that: Applied to a first network device, comprising: A first sending unit is configured to send a first notification message to a second network device through an interface between network devices when it is determined that the relay terminal needs to be switched, wherein the first notification message is used to instruct the second network device to release a multipath configuration related to the relay terminal; and / or A second sending unit, configured to send a second notification message to a remote terminal when it is determined that the relay terminal needs to be switched, wherein the second notification message is used to instruct the remote terminal to release a multipath configuration related to the relay terminal; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal.

50. An information indicating device, characterized in that: Applied to remote terminals, including: The first processing unit is configured to receive a fourth notification message sent by the relay terminal, and send a fifth notification message to the second network device according to the fourth notification message, or release a multipath configuration related to the relay terminal according to the fourth notification message; and / or, A second processing unit, configured to receive a second notification message sent by the first network device, and send a fifth notification message to the second network device according to the second notification message, or release a multipath configuration associated with the relay terminal according to the second notification message; The first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device providing multipath configuration information to the remote terminal, and the fifth notification message is used to indicate the release of the multipath configuration related to the relay terminal.

51. An information indicating device, characterized in that: Applied to the second network device, comprising: a first processing unit, configured to receive a first notification message sent by a first network device through an interface between network devices, and release a multipath configuration related to a relay terminal according to the first notification message; and / or A second processing unit, configured to receive a fifth notification message sent by the remote terminal, and release the multipath configuration related to the relay terminal according to the fifth notification message; Among them, the first notification message and the fifth notification message are used to indicate the release of the multipath configuration related to the relay terminal, the first network device includes a network device serving the relay terminal, the second network device includes a network device serving the remote terminal other than the first network device, or the second network device includes a network device that provides multipath configuration information to the remote terminal.

52. An information indicating device, characterized in that: Applicable to relay terminals, including: A first sending unit, configured to send a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct to send a fifth notification message to the second network device or to instruct to release the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct to release the multipath configuration related to the relay terminal; The second network device includes a network device other than the first network device that serves the remote terminal, or the second network device includes a network device that provides multipath configuration information to the remote terminal, and the first network device includes a network device that serves the relay terminal.

53. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method according to any one of claims 1 to 24.

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