Information indication method and apparatus, and readable storage medium

Abstract

The present disclosure relates to the technical field of communications. Provided are an information indication method and apparatus, and a readable storage medium. The method comprises: when it is determined that a relay user equipment needs a handover, sending a first notification message to a second network device by means of an interface between network devices, wherein the first notification message is used for instructing the second network device to release a multi-path configuration related to the relay user equipment; and / or when it is determined that the relay user equipment needs a handover, sending a second notification message to a remote user equipment, wherein the second notification message is used for instructing the remote user equipment to release the multi-path configuration related to the relay user equipment.

Description

Information indication method, device and readable storage medium

[0001] This disclosure claims priority to the Chinese patent application filed with the China Patent Office on July 20, 2023, with application number 202310892914.2 and application name “A method, device and readable storage medium for information indication,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the field of communication technologies, and in particular to an information indication method, device, and readable storage medium. Background Art

[0003] As shown in Figure 1, traditional wireless communications utilize cellular network communication, where terminals and network-side devices transmit uplink and downlink data / control information via the Uu interface. As shown in Figure 2, direct communication allows nearby terminals to transmit data over a short distance via a direct communication link (also known as a sidelink, bypass, or PC5 link). The wireless interface corresponding to a sidelink link is called a direct communication interface (also known as a bypass interface, sidelink interface, or PC5 interface). As shown in Figure 3, to expand network coverage, an L2 (Layer 2) relay can be considered. The L2 relay itself can be a terminal with relay functionality. For UE-to-UE relay (U2U relay for short), the interface between the relay UE and the network-side device uses the Uu interface, while the interface between the relay UE and the relayed UE (i.e., the remote UE) uses a direct communication interface.

[0004] As shown in Figure 4, after the introduction of U2N relay, in order to improve the peak rate and / or reliability of the remote terminal, a multi-path transmission mechanism is introduced, that is, the terminal simultaneously accesses the network device through the Uu interface and the Relay UE.

[0005] 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.

[0006] If the Relay UE and Remote UE are located on different network devices (such as base stations), when the Relay UE needs to be handed over, it is necessary to consider how to release the Multi-path configuration.

[0007] Summary of the Invention

[0008] Embodiments of the present disclosure provide an information indication method, apparatus, and readable storage medium, so as to release a multipath configuration related to a relay terminal when the relay terminal needs to be switched.

[0009] In a first aspect, an embodiment of the present disclosure provides an information indication method, applied to a first network device, including:

[0010] 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,

[0011] When it is determined 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;

[0012] 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.

[0013] In some embodiments, the first notification message or the second notification message includes one or more of the following:

[0014] identification information of the relay terminal;

[0015] identification information of the remote terminal;

[0016] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0017] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0018] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0019] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0020] Direct communication interface layer 2 (L2) destination address corresponding to the relay terminal;

[0021] The cell identifier and cell radio network temporary identifier (Cell RNTI, C-RNTI) corresponding to the relay terminal; and / or

[0022] The identification information of the remote terminal includes one or more of the following:

[0023] The direct communication interface L2 destination address corresponding to the remote terminal;

[0024] The cell identifier and C-RNTI corresponding to the remote terminal.

[0025] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0026] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0027] 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;

[0028] and / or

[0029] The path identification information corresponding to the relay terminal includes:

[0030] Path ID or path index.

[0031] In some embodiments, the method further comprises:

[0032] 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.

[0033] In some embodiments, the third notification message is indicated in any of the following ways:

[0034] 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 handover operation can be performed on the relay terminal;

[0035] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0036] In some embodiments, the method further comprises one or more of the following steps:

[0037] sending a handover command to the relay terminal;

[0038] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform handover.

[0039] In a second aspect, an embodiment of the present disclosure further provides an information indication method, applied to a remote terminal, comprising:

[0040] 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,

[0041] 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 the multipath configuration associated with the relay terminal according to the second notification message;

[0042] 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.

[0043] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0044] In some embodiments, the fifth notification message includes one or more of the following:

[0045] identification information of the relay terminal;

[0046] identification information of the remote terminal;

[0047] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0048] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0049] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0050] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0051] Direct communication interface L2 destination address corresponding to the relay terminal;

[0052] The cell identifier and C-RNTI corresponding to the relay terminal;

[0053] and / or

[0054] The identification information of the remote terminal includes one or more of the following information:

[0055] The direct communication interface L2 destination address corresponding to the remote terminal;

[0056] The cell identifier and C-RNTI corresponding to the remote terminal.

[0057] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0058] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0059] 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;

[0060] and / or

[0061] The path identification information corresponding to the relay terminal includes:

[0062] Path ID or Path index.

[0063] In some embodiments, the fifth notification message includes one or more of the following:

[0064] Radio Resource Control (RRC) signaling;

[0065] Medium Access Control (MAC) Control Element (CE).

[0066] In some embodiments, the method further comprises:

[0067] 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;

[0068] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0069] In a third aspect, an embodiment of the present disclosure further provides an information indication method, applied to a second network device, comprising:

[0070] 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

[0071] 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;

[0072] 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 providing multipath configuration information to the remote terminal.

[0073] In some embodiments, the first notification message or the fifth notification message includes one or more of the following:

[0074] identification information of the relay terminal;

[0075] identification information of the remote terminal;

[0076] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0077] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0078] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0079] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0080] Direct communication interface L2 destination address corresponding to the relay terminal;

[0081] The cell identifier and C-RNTI corresponding to the relay terminal;

[0082] and / or

[0083] The identification information of the remote terminal includes one or more of the following information:

[0084] The direct communication interface L2 destination address corresponding to the remote terminal;

[0085] The cell identifier and C-RNTI corresponding to the remote terminal.

[0086] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0087] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0088] 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;

[0089] and / or

[0090] The path identification information corresponding to the relay terminal includes:

[0091] Path ID or Path index.

[0092] In some embodiments, the method further comprises:

[0093] 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.

[0094] In some embodiments, the third notification message is indicated in any of the following ways:

[0095] 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 handover operation can be performed on the relay terminal;

[0096] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0097] In some embodiments, the method further comprises:

[0098] 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;

[0099] Receive a reconfiguration completion message sent by the remote terminal.

[0100] In a fourth aspect, an embodiment of the present disclosure further provides an information indication method, applied to a relay terminal, comprising:

[0101] 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;

[0102] 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 first network device includes a network device serving the relay terminal.

[0103] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0104] In some embodiments, the method further comprises one or more of the following steps:

[0105] receiving a switching command sent by the first network device;

[0106] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to perform switching.

[0107] In a fifth aspect, an embodiment of the present disclosure further provides an information indication device, applied to a first network device, comprising: a memory, a transceiver, and a processor:

[0108] 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:

[0109] 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,

[0110] When it is determined 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;

[0111] 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.

[0112] In some embodiments, the first notification message or the second notification message includes one or more of the following:

[0113] identification information of the relay terminal;

[0114] identification information of the remote terminal;

[0115] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0116] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0117] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0118] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0119] Direct communication interface L2 destination address corresponding to the relay terminal;

[0120] The cell identifier and C-RNTI corresponding to the relay terminal;

[0121] and / or

[0122] The identification information of the remote terminal includes one or more of the following:

[0123] The direct communication interface L2 destination address corresponding to the remote terminal;

[0124] The cell identifier and C-RNTI corresponding to the remote terminal.

[0125] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0126] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0127] 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;

[0128] and / or

[0129] The path identification information corresponding to the relay terminal includes:

[0130] Path ID or Path index.

[0131] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0132] 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.

[0133] In some embodiments, the third notification message is indicated in any of the following ways:

[0134] 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 handover operation can be performed on the relay terminal;

[0135] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0136] In some embodiments, the processor is further configured to read the computer program in the memory and perform one or more of the following operations:

[0137] sending a handover command to the relay terminal;

[0138] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform handover.

[0139] In a sixth aspect, an embodiment of the present disclosure provides an information indication device, applied to a remote terminal, comprising: a memory, a transceiver, and a processor:

[0140] 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:

[0141] 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,

[0142] 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 the multipath configuration associated with the relay terminal according to the second notification message;

[0143] 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.

[0144] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0145] In some embodiments, the fifth notification message includes one or more of the following:

[0146] identification information of the relay terminal;

[0147] identification information of the remote terminal;

[0148] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0149] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0150] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0151] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0152] Direct communication interface L2 destination address corresponding to the relay terminal;

[0153] The cell identifier and C-RNTI corresponding to the relay terminal;

[0154] and / or

[0155] The identification information of the remote terminal includes one or more of the following information:

[0156] The direct communication interface L2 destination address corresponding to the remote terminal;

[0157] The cell identifier and C-RNTI corresponding to the remote terminal.

[0158] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0159] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0160] 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;

[0161] and / or

[0162] The path identification information corresponding to the relay terminal includes:

[0163] Path ID or Path index.

[0164] In some embodiments, the fifth notification message includes one or more of the following:

[0165] RRC signaling;

[0166] MAC CE.

[0167] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0168] 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;

[0169] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0170] In a seventh aspect, an embodiment of the present disclosure provides an information indication device, applied to a second network device, comprising: a memory, a transceiver, and a processor:

[0171] 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:

[0172] 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

[0173] 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;

[0174] 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 providing multipath configuration information to the remote terminal.

[0175] In some embodiments, the first notification message or the fifth notification message includes one or more of the following:

[0176] identification information of the relay terminal;

[0177] identification information of the remote terminal;

[0178] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0179] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0180] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0181] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0182] Direct communication interface L2 destination address corresponding to the relay terminal;

[0183] The cell identifier and C-RNTI corresponding to the relay terminal;

[0184] and / or

[0185] The identification information of the remote terminal includes one or more of the following information:

[0186] The direct communication interface L2 destination address corresponding to the remote terminal;

[0187] The cell identifier and C-RNTI corresponding to the remote terminal.

[0188] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0189] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0190] 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;

[0191] and / or

[0192] The path identification information corresponding to the relay terminal includes:

[0193] Path ID or Path index.

[0194] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0195] 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.

[0196] In some embodiments, the third notification message is indicated in any of the following ways:

[0197] 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 handover operation can be performed on the relay terminal;

[0198] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0199] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0200] 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;

[0201] Receive a reconfiguration completion message sent by the remote terminal.

[0202] In an eighth aspect, an embodiment of the present disclosure provides an information indication device, applied to a relay terminal, comprising: a memory, a transceiver, and a processor:

[0203] 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:

[0204] 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;

[0205] 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 first network device includes a network device serving the relay terminal.

[0206] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0207] In some embodiments, the processor is further configured to read the computer program in the memory and perform one or more of the following operations:

[0208] receiving a switching command sent by the first network device;

[0209] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to perform switching.

[0210] In a ninth aspect, an embodiment of the present disclosure provides an information indication device, applied to a first network device, including:

[0211] a first sending unit, configured to, when determining that the relay terminal needs to be switched, send a first notification message to the 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

[0212] A second sending unit is 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 the multipath configuration related to the relay terminal;

[0213] 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.

[0214] In a tenth aspect, an embodiment of the present disclosure provides an information indication device, applied to a remote terminal, comprising:

[0215] a first processing unit, 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;

[0216] and / or,

[0217] 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 the multipath configuration associated with the relay terminal according to the second notification message;

[0218] 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.

[0219] In an eleventh aspect, an embodiment of the present disclosure provides an information indication device, applied to a second network device, including:

[0220] 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 the relay terminal according to the first notification message; and / or

[0221] 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;

[0222] 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 providing multipath configuration information to the remote terminal.

[0223] In a twelfth aspect, an embodiment of the present disclosure provides an information indication device, applied to a relay terminal, including:

[0224] a first sending unit, configured to send 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 a 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;

[0225] 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 first network device includes a network device serving the relay terminal.

[0226] In a thirteenth aspect, an embodiment of the present disclosure 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.

[0227] In an embodiment of the present disclosure, 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

[0228] FIG1 is a schematic diagram of cellular network communication;

[0229] FIG2 is a schematic diagram of direct communication;

[0230] FIG3 is a schematic diagram of UE-to-Network Relay;

[0231] FIG4 is a schematic diagram of a multipath transmission mechanism;

[0232] FIG5 is a flowchart of one of the information indication methods provided by an embodiment of the present disclosure;

[0233] FIG6 is a second flowchart of the information indication method provided by an embodiment of the present disclosure;

[0234] FIG7 is a third flowchart of the information indication method provided by an embodiment of the present disclosure;

[0235] FIG8 is a fourth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0236] FIG9 is a fifth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0237] FIG10 is a sixth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0238] FIG11 is a seventh flowchart of the information indication method provided by an embodiment of the present disclosure;

[0239] FIG12 is a flowchart of an eighth method for indicating information provided by an embodiment of the present disclosure;

[0240] FIG13 is a structural diagram of an information indication device according to an embodiment of the present disclosure;

[0241] FIG14 is a second structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0242] FIG15 is a third structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0243] FIG16 is a fourth structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0244] FIG17 is a fifth structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0245] FIG18 is a sixth structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0246] FIG19 is a seventh structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0247] FIG20 is an eighth structural diagram of the information indication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0248] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0249] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0250] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0251] Embodiments of the present disclosure provide an information indication method and apparatus for releasing a multipath configuration related to a relay terminal when the relay terminal needs to be switched.

[0252] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0253] 5 , which is a flowchart of an information indication method provided by an embodiment of the present disclosure, and is applied to a first network device, as shown in FIG5 , includes the following steps:

[0254] 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;

[0255] The first network device includes a network device (e.g., a base station) serving the relay terminal, and the second network device includes a network device (e.g., a base station) serving the remote terminal other than the first network device, or the second network device includes a network device (e.g., 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.

[0256] The first notification message or the second notification message includes one or more of the following:

[0257] identification information of the relay terminal;

[0258] identification information of the remote terminal;

[0259] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0260] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0261] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0262] The identification information of the relay terminal includes one or more of the following:

[0263] The direct communication interface L2 destination address corresponding to the relay terminal, for example, the source L2 address or the destination L2 address;

[0264] The cell identifier and cell-radio network temporary identifier (C-RNTI) corresponding to the relay terminal;

[0265] The identification information of the remote terminal includes one or more of the following:

[0266] The direct communication interface L2 destination address corresponding to the remote terminal, for example, the source L2 address or the destination L2 address;

[0267] The cell identifier and C-RNTI corresponding to the remote terminal.

[0268] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0269] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0270] 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;

[0271] The path identification information corresponding to the relay terminal includes: Path ID or Path index.

[0272] In an embodiment of the present disclosure, 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.

[0273] In some embodiments, in the embodiment of the present disclosure, 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.

[0274] The third notification message is indicated in any of the following ways:

[0275] 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 handover operation can be performed on the relay terminal;

[0276] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0277] In some embodiments, the first network device may further 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 perform switching.

[0278] 6 , which is a flow chart of an information indication method provided by an embodiment of the present disclosure, and is applied to a remote terminal. As shown in FIG6 , the method includes the following steps:

[0279] 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 the 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 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;

[0280] 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.

[0281] In order to reduce air interface signaling overhead, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0282] The fifth notification message may be a radio resource control (RRC) signaling and / or a medium access control (MAC) control element (CE), and may include one or more of the following:

[0283] identification information of the relay terminal;

[0284] identification information of the remote terminal;

[0285] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0286] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0287] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0288] The identification information of the relay terminal includes one or more of the following:

[0289] The direct communication interface L2 destination address corresponding to the relay terminal, for example, the source L2 address or the destination L2 address;

[0290] The cell identifier and C-RNTI corresponding to the relay terminal;

[0291] The identification information of the remote terminal includes one or more of the following:

[0292] The direct communication interface L2 destination address corresponding to the remote terminal, for example, the source L2 address or the destination L2 address;

[0293] The cell identifier and C-RNTI corresponding to the remote terminal.

[0294] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0295] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0296] 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;

[0297] The path identification information corresponding to the relay terminal includes: a path identification (Identity, ID) or a path index (Path index).

[0298] In an embodiment of the present disclosure, 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.

[0299] In some embodiments, 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.

[0300] 7 , which is a flow chart of an information indication method provided by an embodiment of the present disclosure, and is applied to a second network device. As shown in FIG7 , the method includes the following steps:

[0301] Step 701: Receive a first notification message sent by a first network device through an inter-network device interface, and release a multipath configuration associated with a relay terminal according to the first notification message; and / or receive a fifth notification message sent by a remote terminal, and release the multipath configuration associated with the relay terminal according to the fifth notification message;

[0302] 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 providing multipath configuration information to the remote terminal.

[0303] The content included in the first notification message or the fifth notification message can refer to the description of the aforementioned method embodiment.

[0304] In an embodiment of the present disclosure, 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.

[0305] In some embodiments, 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.

[0306] The third notification message is indicated in any of the following ways:

[0307] 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 handover operation can be performed on the relay terminal;

[0308] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0309] In some embodiments, the second network device may further 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.

[0310] In some embodiments, 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.

[0311] Referring to FIG8 , FIG8 is a flowchart of an information indication method provided by an embodiment of the present disclosure, which is applied to a relay terminal. As shown in FIG8 , the method includes the following steps:

[0312] Step 801: Send a fourth notification message to a remote terminal, wherein the fourth notification message is used to instruct the sending of a fifth notification message to a second network device or to instruct the release of a multipath configuration related to the relay terminal, and the fifth notification message is used to instruct the release of the multipath configuration related to the relay terminal;

[0313] 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 first network device includes a network device serving the relay terminal.

[0314] To save air interface signaling overhead, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0315] In an embodiment of the present disclosure, 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.

[0316] In some embodiments, the present disclosure further includes one or more of the following steps:

[0317] receiving a switching command sent by the first network device;

[0318] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to perform switching.

[0319] Accordingly, the relay terminal may perform corresponding switching.

[0320] In various scenarios, such as the Inter-gNB (inter-base station) scenario, the Relay UE and Remote UE are located in different base stations. If it is determined that the Relay UE needs to be handed over, how to release the Multi-path configuration needs to be considered.

[0321] In one embodiment of the present disclosure, the multi-path configuration associated with the relay UE is released through 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 the network device serving the relay UE, and network device 2 is the network device serving the remote UE. As shown in Figure 9, this embodiment may include:

[0322] Step 901: Network device 1 performs handover decision for Relay UE.

[0323] The network device 1 determines whether the Relay UE needs to be switched. If so, step 902 is executed.

[0324] Step 902: Network device 1 sends a first message (corresponding to a first notification message) to network device 2 through the network device interface.

[0325] 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.

[0326] Specifically, the first message content includes one or a combination of the following:

[0327] Relay UE identification information;

[0328] Remote UE identification information;

[0329] Identification information of the direct communication link between the Relay UE and the Remote UE;

[0330] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0331] Instructions for releasing the Multi-path configuration.

[0332] in:

[0333] The identification information of the relay UE can be one of the following:

[0334] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0335] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0336] The identification information of the Remote UE can be one of the following:

[0337] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0338] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0339] In a multi-path scenario, the path identification information corresponding to the Relay UE includes: Path ID or Path index.

[0340] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0341] The source L2 address of the direct communication interface corresponding to the Relay UE and the target L2 address of the direct communication interface corresponding to the Remote UE;

[0342] 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.

[0343] Step 903: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0344] 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 Relay UE.

[0345] Step 904: Multi-path release is completed.

[0346] 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.

[0347] Step 905: Network device 2 sends a fourth message (corresponding to the third notification message) to network device 1.

[0348] In this step, the network device 2 sends a fourth message to the network device 1 serving the Relay UE through the network device interface (such as the Xn and / or F1 interface).

[0349] The content of the fourth message may be one of the following:

[0350] 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 handover operation can be performed on the relay terminal.

[0351] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0352] Step 906: The network device 1 sends a handover command to the Relay UE.

[0353] Specifically, the handover command may be an RRC reconfiguration message.

[0354] In one embodiment of the present disclosure, the Multi-path configuration associated with 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 the network device serving the Relay UE, and network device 2 is the network device serving the Remote UE. As shown in Figure 10, this embodiment may include:

[0355] Step 1001: Network device 1 performs handover decision for Relay UE.

[0356] The network device 1 determines whether the Relay UE needs to be switched. If so, step 1002 is executed.

[0357] Step 1002: Network device 1 sends a handover command to the Relay UE.

[0358] In this step, the handover command may be an RRC reconfiguration message, which is used to instruct the Relay UE to initiate a handover.

[0359] Step 1003: The Relay UE sends a second message (corresponding to the fourth notification message) to one or more Remote UEs served by it.

[0360] The second message may reuse NotificationMessageSidelink, or may be a newly designed RRC message.

[0361] In some embodiments, to reduce air interface signaling overhead, the relay UE may send the second message in two ways:

[0362] 1) The Relay UE sends the second message only to some of the Remote UEs it serves;

[0363] 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.

[0364] Step 1004: The Remote UE sends a third message (corresponding to the fifth notification message) to the network device 2 it serves.

[0365] After receiving the second message sent by the Relay UE, if the Remote UE 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.

[0366] Specifically, how the Remote UE determines whether to send the third message is related to step 1003. For example, if there are no restrictions in step 1003, all Remote UEs served by the Relay UE must send the third message to the network device. If there are restrictions in step 1003, such as if the second message carries indication information, the Remote UE determines whether to send the third message to the network device based on the indication information in the second message.

[0367] Specifically, the third message content includes one or a combination of the following:

[0368] Relay UE identification information;

[0369] Remote UE identification information;

[0370] Identification information of the direct communication link between the Relay and Remote UE;

[0371] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0372] Instructions for releasing the Multi-path configuration.

[0373] in:

[0374] The identification information of the relay UE can be one of the following:

[0375] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0376] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0377] The identification information of the Remote UE can be one of the following:

[0378] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0379] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0380] In a multi-path scenario, the path identification information corresponding to the Relay UE includes: Path ID or Path index.

[0381] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0382] The source L2 address of the direct communication interface corresponding to the Relay UE and the target L2 address of the direct communication interface corresponding to the Remote UE;

[0383] 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.

[0384] Step 1005: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0385] 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 Relay UE.

[0386] Step 1006: Multi-path release is completed.

[0387] 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.

[0388] In one embodiment of the present disclosure, the Multi-path configuration associated with 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 the network device serving the Relay UE, and network device 2 is the network device serving the Remote UE. As shown in Figure 11, this embodiment may include:

[0389] Step 1101: Network device 1 performs handover decision for Relay UE.

[0390] The network device 1 determines whether the Relay UE needs to be switched. If so, step 1102 is executed.

[0391] Step 1102: Network device 1 sends an indication message to the Relay UE.

[0392] In this step, the indication message is used to indicate that the Relay UE needs to be handed over.

[0393] Step 1103: The Relay UE sends a second message (corresponding to the fourth notification message) to one or more Remote UEs served by it.

[0394] The second message may reuse NotificationMessageSidelink, or may be a newly designed RRC message.

[0395] When the Relay UE sends the second message, there are two ways:

[0396] 1) The Relay UE sends the second message only to some of the Remote UEs it serves;

[0397] 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.

[0398] Step 1104: The Remote UE sends a third message (corresponding to the fifth notification message) to the network device 2 it serves.

[0399] After receiving the second message sent by the Relay UE, if the Remote UE 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.

[0400] Specifically, how the Remote UE determines whether to send the third message is related to step 1103. For example, if there are no restrictions in step 1103, all Remote UEs served by the Relay UE must send the third message to the network device. If there are restrictions in step 1103, such as if the second message carries indication information, the Remote UE determines whether to send the third message to the network device based on the indication information in the second message.

[0401] Specifically, the third message content includes one or a combination of the following:

[0402] Relay UE identification information;

[0403] Remote UE identification information;

[0404] Identification information of the direct communication link between the Relay and Remote UE;

[0405] Path identification information corresponding to the Relay UE in the Multi-path scenario.

[0406] Instructions for releasing the Multi-path configuration.

[0407] in:

[0408] The identification information of the relay UE can be one of the following:

[0409] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0410] The cell ID and C-RNTI ID corresponding to the Relay UE;

[0411] The identification information of the Remote UE can be one of the following:

[0412] The direct communication interface L2 target address corresponding to the Relay UE can be the source L2 address or the target L2 address;

[0413] The cell identifier and C-RNTI identifier corresponding to the Remote UE.

[0414] In a multi-path scenario, the path identification information corresponding to the Relay UE includes: Path ID or Path index.

[0415] Specifically, the identification information of the direct communication link between the Relay and the Remote UE may be one of the following:

[0416] The source L2 address of the direct communication interface corresponding to the Relay UE and the target L2 address of the direct communication interface corresponding to the Remote UE;

[0417] 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.

[0418] Step 1105: Network device 2 sends a reconfiguration message to one or more Remote UEs served by the Relay UE.

[0419] 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 Relay UE.

[0420] Step 1106: Multi-path release is completed.

[0421] 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.

[0422] Step 1107: Network device 2 sends a fourth message (corresponding to the third notification message) to network device 1.

[0423] In this step, the network device 2 sends a fourth message to the network device 1 serving the Relay UE through the network device interface (such as the Xn and / or F1 interface).

[0424] The content of the fourth message may be one of the following:

[0425] 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 handover operation can be performed on the relay terminal.

[0426] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0427] Step 1108: The network device 1 sends a handover command to the Relay UE.

[0428] Specifically, the handover command may be an RRC reconfiguration message.

[0429] In one embodiment of the present disclosure, Remote UE1 and Remote UE2 are two remote terminals served by a 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. As shown in FIG12 , this embodiment may include:

[0430] Step 1201: Network device 1 performs handover decision for Relay UE.

[0431] The network device 1 determines whether the Relay UE needs to be switched. If so, step 1202 is executed.

[0432] Step 1202: Network device 1 sends a second notification message to Remote UE.

[0433] In some embodiments, the Remote UE has the following two processing methods:

[0434] Method 1: The Remote UE releases the Multi-path configuration related to the Relay UE.

[0435] In the second mode, 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.

[0436] The technical solution provided by the embodiment of the present disclosure 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 (5G System, 5GS), etc.

[0437] The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0438] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. 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 geographically separated.

[0439] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple 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 two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also use diversity transmission, precoding transmission, or beamforming transmission.

[0440] As shown in FIG13 , the information indication apparatus according to an embodiment of the present disclosure, applied to a first network device, includes: a processor 1300 configured to read a program in a memory 1320 and execute the following process:

[0441] 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,

[0442] When it is determined 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;

[0443] 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.

[0444] The transceiver 1310 is configured to receive and send data under the control of the processor 1300 .

[0445] In FIG13 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 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, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices over 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.

[0446] 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.

[0447] 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.

[0448] In some embodiments, the first notification message or the second notification message includes one or more of the following:

[0449] identification information of the relay terminal;

[0450] identification information of the remote terminal;

[0451] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0452] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0453] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0454] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0455] Direct communication interface L2 destination address corresponding to the relay terminal;

[0456] The cell identifier and C-RNTI corresponding to the relay terminal;

[0457] and / or

[0458] The identification information of the remote terminal includes one or more of the following:

[0459] The direct communication interface L2 destination address corresponding to the remote terminal;

[0460] The cell identifier and C-RNTI corresponding to the remote terminal.

[0461] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0462] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0463] 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;

[0464] and / or

[0465] The path identification information corresponding to the relay terminal includes:

[0466] Path ID or Path index.

[0467] The processor 1300 is further configured to read the program and execute the following steps:

[0468] 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.

[0469] In some embodiments, the third notification message is indicated in any of the following ways:

[0470] 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 handover operation can be performed on the relay terminal;

[0471] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0472] The processor 1300 is further configured to read the program and perform one or more of the following operations:

[0473] sending a handover command to the relay terminal;

[0474] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform handover.

[0475] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0476] As shown in FIG14 , the information indication apparatus according to an embodiment of the present disclosure, applied to a second network device, includes: a processor 1400 configured to read a program in a memory 1420 and execute the following process:

[0477] 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

[0478] 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;

[0479] 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 providing multipath configuration information to the remote terminal.

[0480] The transceiver 1410 is configured to receive and send data under the control of the processor 1400 .

[0481] In FIG14 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits linked together by one or more processors represented by processor 1400 and memory represented by memory 1420. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1410 may be a plurality of components, i.e., 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.

[0482] 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.

[0483] 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.

[0484] In some embodiments, the first notification message or the fifth notification message includes one or more of the following:

[0485] identification information of the relay terminal;

[0486] identification information of the remote terminal;

[0487] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0488] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0489] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0490] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0491] Direct communication interface L2 destination address corresponding to the relay terminal;

[0492] The cell identifier and C-RNTI corresponding to the relay terminal;

[0493] and / or

[0494] The identification information of the remote terminal includes one or more of the following information:

[0495] The direct communication interface L2 destination address corresponding to the remote terminal;

[0496] The cell identifier and C-RNTI corresponding to the remote terminal.

[0497] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0498] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0499] 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;

[0500] and / or

[0501] The path identification information corresponding to the relay terminal includes:

[0502] Path ID or Path index.

[0503] The processor 1400 is further configured to read the program and perform the following operations:

[0504] 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.

[0505] In some embodiments, the third notification message is indicated in any of the following ways:

[0506] 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 handover operation can be performed on the relay terminal;

[0507] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0508] The processor 1400 is further configured to read the program and perform the following operations:

[0509] 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;

[0510] Receive a reconfiguration completion message sent by the remote terminal.

[0511] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0512] As shown in FIG15 , the information indication device according to an embodiment of the present disclosure, applied to a relay terminal, includes: a processor 1500 configured to read a program in a memory 1520 and execute the following process:

[0513] 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;

[0514] 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 first network device includes a network device serving the relay terminal.

[0515] The transceiver 1510 is configured to receive and send data under the control of the processor 1500 .

[0516] In FIG15 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 1500 and memory represented by memory 1520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1510 may be a plurality of components, i.e., 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 connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0517] 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.

[0518] 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.

[0519] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0520] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0521] The processor 1500 is further configured to read the program and perform one or more of the following operations:

[0522] receiving a switching command sent by the first network device;

[0523] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to perform switching.

[0524] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0525] As shown in FIG16 , the information indication device according to an embodiment of the present disclosure, applied to a remote terminal, includes: a processor 1600 configured to read a program in a memory 1620 and execute the following process:

[0526] 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,

[0527] 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 the multipath configuration associated with the relay terminal according to the second notification message;

[0528] 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.

[0529] The transceiver 1610 is configured to receive and send data under the control of the processor 1600 .

[0530] In FIG16 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 1600 and memory represented by memory 1620, 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, i.e., 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 connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0531] 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.

[0532] 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.

[0533] The processor calls the computer program stored in the memory to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0534] The fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0535] The fifth notification message includes one or more of the following:

[0536] identification information of the relay terminal;

[0537] identification information of the remote terminal;

[0538] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0539] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0540] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0541] The identification information of the relay terminal includes one or more of the following:

[0542] Direct communication interface L2 destination address corresponding to the relay terminal;

[0543] The cell identifier and C-RNTI corresponding to the relay terminal;

[0544] and / or

[0545] The identification information of the remote terminal includes one or more of the following information:

[0546] The direct communication interface L2 destination address corresponding to the remote terminal;

[0547] The cell identifier and C-RNTI corresponding to the remote terminal.

[0548] The identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0549] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0550] 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;

[0551] and / or

[0552] The path identification information corresponding to the relay terminal includes:

[0553] Path ID or Path index.

[0554] The fifth notification message includes one or more of the following:

[0555] RRC signaling;

[0556] MAC CE.

[0557] The processor 1600 is further configured to read the program and execute the following steps:

[0558] 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;

[0559] According to the reconfiguration message, a reconfiguration completion message is sent to the second network device.

[0560] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0561] As shown in FIG17 , the information indication device according to an embodiment of the present disclosure, applied to a remote terminal, includes:

[0562] 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 the multipath configuration related to the relay terminal according to the fourth notification message;

[0563] and / or,

[0564] 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;

[0565] 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.

[0566] In some embodiments, the fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0567] In some embodiments, the fifth notification message includes one or more of the following:

[0568] identification information of the relay terminal;

[0569] identification information of the remote terminal;

[0570] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0571] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0572] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0573] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0574] Direct communication interface L2 destination address corresponding to the relay terminal;

[0575] The cell identifier and C-RNTI corresponding to the relay terminal;

[0576] and / or

[0577] The identification information of the remote terminal includes one or more of the following information:

[0578] The direct communication interface L2 destination address corresponding to the remote terminal;

[0579] The cell identifier and C-RNTI corresponding to the remote terminal.

[0580] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following information:

[0581] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0582] 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;

[0583] and / or

[0584] The path identification information corresponding to the relay terminal includes:

[0585] Path ID or Path index.

[0586] In some embodiments, the fifth notification message includes one or more of the following:

[0587] Radio Resource Control (RRC) signaling;

[0588] Media Access Control Element MAC CE.

[0589] In some embodiments, the apparatus may further comprise:

[0590] A first receiving unit is 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;

[0591] The first sending unit is configured to send a reconfiguration completion message to the second network device according to the reconfiguration message.

[0592] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0593] As shown in FIG18 , the information indication apparatus according to an embodiment of the present disclosure is applied to a first network device and includes:

[0594] The first sending unit 1801 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 the multipath configuration related to the relay terminal; and / or

[0595] The second sending unit 1802 is configured 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;

[0596] 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.

[0597] In some embodiments, the first notification message or the second notification message includes one or more of the following:

[0598] identification information of the relay terminal;

[0599] identification information of the remote terminal;

[0600] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0601] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0602] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0603] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0604] Direct communication interface L2 destination address corresponding to the relay terminal;

[0605] The cell identifier and C-RNTI corresponding to the relay terminal;

[0606] and / or

[0607] The identification information of the remote terminal includes one or more of the following:

[0608] The direct communication interface L2 destination address corresponding to the remote terminal;

[0609] The cell identifier and C-RNTI corresponding to the remote terminal.

[0610] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0611] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0612] 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;

[0613] and / or

[0614] The path identification information corresponding to the relay terminal includes:

[0615] Path ID or Path index.

[0616] In some embodiments, the apparatus may further comprise:

[0617] The first receiving unit is configured 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 complete.

[0618] In some embodiments, the third notification message is indicated in any of the following ways:

[0619] 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 handover operation can be performed on the relay terminal;

[0620] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0621] In some embodiments, the apparatus may further comprise:

[0622] The third sending unit is configured to perform one or more of the following steps:

[0623] sending a handover command to the relay terminal;

[0624] A second indication is sent to the relay terminal, wherein the second indication is used to instruct the relay terminal to perform handover.

[0625] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0626] As shown in FIG19 , the information indication device according to an embodiment of the present disclosure is applied to a second network device and includes:

[0627] 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

[0628] 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;

[0629] 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 providing multipath configuration information to the remote terminal.

[0630] In some embodiments, the first notification message or the fifth notification message includes one or more of the following:

[0631] identification information of the relay terminal;

[0632] identification information of the remote terminal;

[0633] Identification information of the direct communication link between the relay terminal and the remote terminal;

[0634] In a multi-path transmission scenario, the path identification information corresponding to the relay terminal;

[0635] The first indication is used to instruct to release the multipath configuration related to the relay terminal.

[0636] In some embodiments, the identification information of the relay terminal includes one or more of the following:

[0637] Direct communication interface L2 destination address corresponding to the relay terminal;

[0638] The cell identifier and C-RNTI corresponding to the relay terminal;

[0639] and / or

[0640] The identification information of the remote terminal includes one or more of the following information:

[0641] The direct communication interface L2 destination address corresponding to the remote terminal;

[0642] The cell identifier and C-RNTI corresponding to the remote terminal.

[0643] In some embodiments, the identification information of the direct communication link between the relay terminal and the remote terminal includes one or more of the following:

[0644] The source L2 address of the direct communication interface corresponding to the relay terminal and the target L2 address of the direct communication interface corresponding to the remote terminal;

[0645] 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;

[0646] and / or

[0647] The path identification information corresponding to the relay terminal includes:

[0648] Path ID or Path index.

[0649] In some embodiments, the apparatus may further comprise:

[0650] The first sending unit is configured 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 complete.

[0651] The third notification message is indicated in any of the following ways:

[0652] 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 handover operation can be performed on the relay terminal;

[0653] N-bit identification information, wherein each bit of the N-bit identification information is used to indicate that the release of each multipath configuration related to the relay terminal is complete, and N is an integer greater than or equal to 1, indicating the number of multipath configurations.

[0654] In some embodiments, the apparatus may further comprise:

[0655] A first sending unit is configured to send 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;

[0656] The first receiving unit is configured to receive a reconfiguration completion message sent by the remote terminal.

[0657] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure 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.

[0658] As shown in FIG20 , the information indication device according to an embodiment of the present disclosure is applied to a relay terminal and includes:

[0659] A first sending unit 2001 is configured to send a fourth notification message to a 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 a 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;

[0660] 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.

[0661] The fourth notification message includes a third indication, wherein the third indication is used to instruct sending the fifth notification message to the second network device or to instruct releasing the multipath configuration related to the relay terminal.

[0662] In some embodiments, the apparatus may further include a first receiving unit configured to perform one or more of the following operations:

[0663] receiving a switching command sent by the first network device;

[0664] A second indication sent by the first network device is received, wherein the second indication is used to instruct the relay terminal to perform switching.

[0665] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0666] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0667] An embodiment of the present disclosure 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.

[0668] The embodiment of the present disclosure also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, the various processes of the above-mentioned information indication method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be 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 (MO)), etc.), optical storage (such as compact disk (CD), digital video disc (DVD), Blu-ray Disc (BD), high-definition versatile disc (HVD), etc.), and semiconductor memory (such as read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid state disk (SSD)), etc.

[0669] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0670] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), and includes a number of instructions for enabling 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 disclosure.

[0671] It should be noted that it should be understood that the division of the above modules is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; or they can all be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, the determination module can be a separately established processing element, or it can be integrated into a chip of the above-mentioned device. In addition, it can also be stored in the memory of the above-mentioned device in the form of program code, and called by a processing element of the above-mentioned device to perform the functions of the above-mentioned determination module. The implementation of other modules is similar. In addition, these modules can all or partly be integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the hardware integrated logic circuit in the processor element or by instructions in the form of software.

[0672] For example, each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs). For another example, when a module is implemented by scheduling program code through a processing element, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0673] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure described herein may be implemented in a sequence other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units need not be limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices. In addition, the use of "and / or" in the specification and claims to indicate at least one of the connected objects, for example, A and / or B and / or C, means that seven situations are included: A alone, B alone, C alone, both A and B present, both B and C present, both A and C present, and all A, B, and C present. Similarly, the use of "at least one of A and B" in the specification and claims should be understood to mean "A alone, B alone, or both A and B present."

[0674] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, but the present disclosure 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 disclosure, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present disclosure and the claims, all of which are protected by the present disclosure.

Claims

1. An information indication method, 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, wherein: 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, wherein: 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, wherein: The identification information of the direct communication link between the relay terminal and the remote terminal includes the following: or more: 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, further comprising: 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, wherein: 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, further comprising one or more of the following steps: Sending a switching command to the relay terminal; Sending a second instruction to the relay terminal, wherein: The second instruction is used to instruct the relay terminal to perform switching.

8. An information indication method, applied to a remote terminal, comprising: 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 a 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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 direct communication interface corresponding to the relay terminal Target L2 address; and / or The path identification information corresponding to the relay terminal includes: Path ID or Path index.

13. The method according to claim 8, wherein: 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, further comprising: 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, applied to a 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 a 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, wherein: 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, wherein: 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, wherein: 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, further comprising: 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, wherein: 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 of claim 15, further comprising: 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, applied to a relay terminal, comprising: 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, wherein: 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, further comprising 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 instruction is used to instruct the relay terminal to perform switching.

25. An information indication device, applied to a first network device, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform 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, and the second The 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, wherein 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, wherein: 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, wherein 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, wherein: 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, wherein: 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, wherein: 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 indication device, applied to a remote terminal, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform 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 a 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, wherein: 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, wherein: 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, wherein 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, wherein: 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, wherein: The fifth notification message includes one or more of the following: RRC signaling; MAC CE.

38. The apparatus of claim 32, wherein: 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 indication device, applied to a second network device, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform 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, wherein 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, wherein 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, wherein 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 apparatus of claim 39, wherein: 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, wherein 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 apparatus of claim 39, wherein: 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 indication device, applied to a relay terminal, comprising: Memory, transceiver, processor: Memory for storing computer programs; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the computer program in the memory and perform 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, wherein 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 apparatus of claim 46, wherein: 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 indication device, 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 The second sending unit 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 connection with the relay terminal. Following the terminal related multipath configuration; 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. The apparatus of claim 49, wherein: 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.

51. The apparatus of claim 50, wherein: 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.

52. The device according to claim 50 or 51, wherein: 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.

53. The apparatus of claim 49, wherein: The device may also include: 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.

54. The apparatus of claim 53, wherein: 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.

55. The apparatus of claim 53, wherein: The device may also include: The third sending unit is configured to perform 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.

56. An information indication device, applied to a remote terminal, comprising: 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.

57. The apparatus of claim 56, wherein: 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.

58. The apparatus of claim 56, wherein: 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.

59. The apparatus of claim 58, wherein: 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.

60. The device according to claim 58 or 59, wherein: 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.

61. The apparatus of claim 59, wherein: The fifth notification message includes one or more of the following: Radio Resource Control (RRC) signaling; Media Access Control Controller MAC CE.

62. The apparatus of claim 56, wherein: The device may also include: 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; The first sending unit is used to send a reconfiguration completion message to the second network device according to the reconfiguration message.

63. An information indication device, applied to a 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.

64. The apparatus of claim 63, wherein: 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.

65. The apparatus of claim 64, wherein: 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.

66. The device according to claim 64 or 65, wherein 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.

67. The apparatus according to claim 63, further comprising: 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.

68. The apparatus of claim 67, wherein: 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.

69. The apparatus according to claim 63, further comprising: 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; The first receiving unit is used to receive a reconfiguration completion message sent by the remote terminal.

70. An information indication device, applied to a relay terminal, comprising: The first sending unit is configured to send a fourth notification message to the remote terminal, wherein the fourth notification message is used to instruct the second network device to send a fifth notification message or to instruct the release of the multipath configuration related to the relay terminal, and the fifth notification message is used to instruct the release of the multipath configuration related to the relay terminal. Path configuration; 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.

71. The apparatus of claim 70, wherein: 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.

72. The apparatus according to claim 70, further comprising: The first receiving unit is configured to 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.

73. A processor-readable storage medium storing a computer program, wherein the computer program is used to cause the processor to execute the method according to any one of claims 1 to 24.

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