Information indication method and apparatus, and readable storage medium

Abstract

The present disclosure relates to the technical field of communications, and provides an information indication method and apparatus, and a readable storage medium. The method comprises: when a first event occurs on a first target interface, sending first indication information to a second terminal by means of a first interface, wherein the first indication information is used for instructing to suspend or release a target object on a second target interface, the first interface is a direct communication interface between a first terminal and the second terminal, and the second terminal refers to one or more terminals having an association relationship with the first terminal.

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 17, 2023, with application number 202310873439.4 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 networks, with terminals and network-side devices transmitting uplink and downlink data and control information over the Uu interface. As shown in Figure 2, direct communication allows nearby terminals to communicate over a direct communication link (also known as a sidelink, bypass, or PC5 link) within a short distance. 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).

[0004] Related technologies have introduced extended reality (XR) services, including augmented reality (AR), virtual reality (VR), and mixed reality (MR). XR services support multimodality, in which one or multiple user terminals can simultaneously transmit different quality of service (QoS) flows for the same service.

[0005] In related technologies, radio link failures (RLFs) for different terminals are independent of each other. However, in multimodal XR service transmission scenarios, if multiple terminals transmit different Quality of Service (QoS) flows for the same XR service, and an RLF occurs on one terminal, how to avoid transmission desynchronization of the multimodal service becomes a problem that needs to be considered.

[0006] Summary of the Invention

[0007] Embodiments of the present disclosure provide an information indication method, apparatus, and readable storage medium to ensure transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0008] In a first aspect, an embodiment of the present disclosure provides an information indication method, applied to a first terminal, including:

[0009] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0010] The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0011] In some embodiments, the first event includes one or more of the following:

[0012] RLF;

[0013] RLF recovery failed;

[0014] RRC connection reestablishment failed;

[0015] Radio Resource Control (RRC) reconfiguration failed.

[0016] In some embodiments, the first indication information includes one or more of the following:

[0017] first information, used to indicate the first event;

[0018] a first target interface corresponding to the first event;

[0019] Business identification information;

[0020] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0021] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0022] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0023] Uu interface;

[0024] Direct communication interface.

[0025] In some embodiments, the target object includes one or more of the following:

[0026] Uu interface bearers and / or logical channels;

[0027] Direct communication interface bearers and / or logical channels.

[0028] In some embodiments, the sending the first indication information to the second terminal through the first interface includes:

[0029] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0030] In some embodiments, the method further comprises:

[0031] The second terminal is determined according to one or more of the following information:

[0032] First configuration information sent by the network device;

[0033] Second configuration information sent by a higher layer of the first terminal.

[0034] In some embodiments, the first configuration information or the second configuration information includes one or more of the following:

[0035] Business identification information;

[0036] identification information of the second terminal;

[0037] The target layer 2 L2 identifier of the direct communication interface associated with the service.

[0038] In some embodiments, the method further comprises:

[0039] If RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

[0040] In some embodiments, the second indication information includes one or more of the following:

[0041] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0042] Identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0043] The service identifier of the transmission to be resumed;

[0044] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0045] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0046] In some embodiments, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0047] Broadcast, multicast, unicast.

[0048] In a second aspect, an embodiment of the present disclosure provides an information indication method, applied to a second terminal, including:

[0049] receiving first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, and the second terminal including one or more terminals associated with the first terminal;

[0050] According to the first indication information, the target object is suspended or released on the second target interface.

[0051] In some embodiments, the first event includes one or more of the following:

[0052] RLF;

[0053] RLF recovery failed;

[0054] RRC connection reestablishment failed;

[0055] RRC reconfiguration failed.

[0056] In some embodiments, the first indication information includes one or more of the following:

[0057] first information, used to indicate the first event;

[0058] a first target interface corresponding to the first event;

[0059] Business identification information;

[0060] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0061] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0062] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0063] Uu interface;

[0064] Direct communication interface.

[0065] In some embodiments, the target object includes one or more of the following:

[0066] Uu interface bearers and / or logical channels;

[0067] Direct communication interface bearers and / or logical channels.

[0068] In some embodiments, suspending the target object or releasing the target object on the second target interface according to the first indication information includes:

[0069] The target object is suspended or released on the second target interface according to the second information and / or the third information.

[0070] In some embodiments, the method further comprises:

[0071] Receive second indication information sent by the first terminal through the first interface.

[0072] In some embodiments, the second indication information includes one or more of the following:

[0073] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0074] The interface identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0075] The service identifier of the transmission to be resumed;

[0076] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0077] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0078] In some embodiments, the method further comprises:

[0079] Data transmission of the target object is resumed at the second target interface according to the fifth information and / or the sixth information.

[0080] In a third aspect, an embodiment of the present disclosure provides an information indication device, applied to a first terminal, comprising: a memory, a transceiver, and a processor:

[0081] 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:

[0082] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0083] The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0084] In some embodiments, the first event includes one or more of the following:

[0085] RLF;

[0086] RLF recovery failed;

[0087] RRC connection reestablishment failed;

[0088] RRC reconfiguration failed.

[0089] In some embodiments, the first indication information includes one or more of the following:

[0090] first information, used to indicate the first event;

[0091] a first target interface corresponding to the first event;

[0092] Business identification information;

[0093] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0094] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0095] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0096] Uu interface;

[0097] Direct communication interface.

[0098] In some embodiments, the target object includes one or more of the following:

[0099] Uu interface bearers and / or logical channels;

[0100] Direct communication interface bearers and / or logical channels.

[0101] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0102] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0103] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0104] The second terminal is determined according to one or more of the following information:

[0105] First configuration information sent by the network device;

[0106] Second configuration information sent by a higher layer of the first terminal.

[0107] In some embodiments, the first configuration information or the second configuration information includes one or more of the following:

[0108] Business identification information;

[0109] identification information of the second terminal;

[0110] The target L2 identifier of the direct communication interface associated with the service.

[0111] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0112] If RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

[0113] In some embodiments, the second indication information includes one or more of the following:

[0114] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0115] Identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0116] The service identifier of the transmission to be resumed;

[0117] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0118] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0119] In some embodiments, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0120] Broadcast, multicast, unicast.

[0121] In a fourth aspect, an embodiment of the present disclosure provides an information indication device, applied to a second terminal, including: a memory, a transceiver, and a processor:

[0122] 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:

[0123] receiving first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, and the second terminal including one or more terminals associated with the first terminal;

[0124] According to the first indication information, the target object is suspended or released on the second target interface.

[0125] In some embodiments, the first event includes one or more of the following:

[0126] RLF;

[0127] RLF recovery failed;

[0128] RRC connection reestablishment failed;

[0129] RRC reconfiguration failed.

[0130] In some embodiments, the first indication information includes one or more of the following:

[0131] first information, used to indicate the first event;

[0132] a first target interface corresponding to the first event;

[0133] Business identification information;

[0134] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0135] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0136] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0137] Uu interface;

[0138] Direct communication interface.

[0139] In some embodiments, the target object includes one or more of the following:

[0140] Uu interface bearers and / or logical channels;

[0141] Direct communication interface bearers and / or logical channels.

[0142] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0143] The target object is suspended or released on the second target interface according to the second information and / or the third information.

[0144] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0145] Receive second indication information sent by the first terminal through the first interface.

[0146] In some embodiments, the second indication information includes one or more of the following:

[0147] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0148] The interface identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0149] The service identifier of the transmission to be resumed;

[0150] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0151] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0152] In some embodiments, the processor is further configured to read the computer program in the memory and perform the following operations:

[0153] Data transmission of the target object is resumed at the second target interface according to the fifth information and / or the sixth information.

[0154] In a fifth aspect, an embodiment of the present disclosure provides an information indication device, applied to a first terminal, including:

[0155] A first sending unit is configured to send first indication information to the second terminal through the first interface when a first event occurs on the first target interface;

[0156] The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0157] In a sixth aspect, an embodiment of the present disclosure provides an information indication device, applied to a second terminal, including:

[0158] a first receiving unit, configured to receive first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, and the second terminal including one or more terminals associated with the first terminal;

[0159] The first processing unit is configured to suspend a target object or release the target object on the second target interface according to the first indication information.

[0160] In a seventh 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.

[0161] In the disclosed embodiment, when a first event occurs on a first target interface, first indication information is sent to a second terminal via the first interface, thereby causing the second terminal to suspend or release a target object on the second target interface. Therefore, using the solution of the disclosed embodiment, if one service flow in a service cannot transmit, other service flows can be prevented from continuing data transmission, thereby ensuring transmission synchronization between multiple different target objects corresponding to a multimodal service. BRIEF DESCRIPTION OF THE DRAWINGS

[0162] FIG1 is a schematic diagram of cellular network communication;

[0163] FIG2 is a schematic diagram of direct communication;

[0164] FIG3 is a flowchart of one of the information indication methods provided by an embodiment of the present disclosure;

[0165] FIG4 is a second flowchart of the information indication method provided by an embodiment of the present disclosure;

[0166] FIG5 is a third flowchart of the information indication method provided by an embodiment of the present disclosure;

[0167] FIG6 is a fourth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0168] FIG7 is a fifth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0169] FIG8 is a sixth flowchart of the information indication method provided by an embodiment of the present disclosure;

[0170] FIG9 is a structural diagram of an information indication device according to an embodiment of the present disclosure;

[0171] FIG10 is a second structural diagram of the information indication device provided by an embodiment of the present disclosure;

[0172] FIG11 is a third structural diagram of the information indication device provided in an embodiment of the present disclosure;

[0173] FIG12 is a fourth structural diagram of the information indication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0174] 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.

[0175] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0176] 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.

[0177] The embodiments of the present disclosure provide an information indication method and apparatus to ensure transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0178] 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.

[0179] 3 , which is a flowchart of an information indication method provided by an embodiment of the present disclosure, is applied to a first terminal. As shown in FIG3 , the method includes the following steps:

[0180] Step 301: When a first event occurs on a first target interface, first indication information is sent to a second terminal via the first interface.

[0181] The first indication information is used to instruct to suspend or release the target object on the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0182] In the embodiment of the present disclosure, “having an associated relationship” means that the second terminal and the first terminal simultaneously transmit the same service, for example, the second terminal and the first terminal simultaneously transmit different service quality streams of the same multimodal XR service.

[0183] The first event includes one or more of the following: Radio Link Failure (RLF); RLF recovery failure; Radio Resource Control (RRC) connection reestablishment failure; RRC reconfiguration failure.

[0184] The first target interface or the second target interface includes one or more of the following: a Uu interface; a direct communication interface (PC5 interface).

[0185] The target object includes one or more of the following: Uu interface bearer and / or logical channel; direct communication interface bearer and / or logical channel.

[0186] The first indication information includes one or more of the following:

[0187] first information, used to indicate the first event;

[0188] The first target interface corresponding to the first event, such as a Uu interface and / or a PC5 interface;

[0189] Service identification information, such as the Common ID (common identification) corresponding to the service interrupted due to the first event or the direct communication interface L2 ID (layer 2 identification) corresponding to the service;

[0190] Second information is used to indicate information about an operation to be performed by the second terminal on the second target interface, such as whether to suspend a target object or release a target object;

[0191] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0192] The first indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0193] In an embodiment of the present disclosure, if the first terminal determines that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0194] Specifically, the first terminal may determine the second terminal according to one or more of the following information:

[0195] First configuration information sent by the network device; second configuration information sent by the upper layer of the first terminal.

[0196] The first configuration information or the second configuration information includes one or more of the following:

[0197] Business identification information, such as the Common ID corresponding to the XR business;

[0198] The identification information of the second terminal may be a Uu interface identifier, such as a cell radio network temporary identifier (Cell (Radio Network Temporary Identifier, RNTI), C-RNTI), or a direct communication interface identifier, such as a direct communication interface target L2 ID;

[0199] The target L2 identifier of the direct communication interface associated with the service.

[0200] In the disclosed embodiment, when a first event occurs on a first target interface, first indication information is sent to a second terminal via the first interface, thereby causing the second terminal to suspend or release a target object on the second target interface. Therefore, using the solution of the disclosed embodiment, if one service flow in a service cannot transmit, other service flows can be prevented from continuing data transmission, thereby ensuring transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0201] In some embodiments, based on the above embodiments, if RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

[0202] The second indication information includes one or more of the following:

[0203] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0204] Identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed, such as Uu interface and / or PC5 interface indication information;

[0205] The service identifier for the service to be restored, such as the Common ID or the direct communication interface L2 ID corresponding to the service interrupted due to RLF;

[0206] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface, such as resuming data transmission of a target object;

[0207] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0208] The second indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0209] Referring to FIG. 4 , FIG. 4 is a flowchart of an information indication method provided by an embodiment of the present disclosure, which is applied to a second terminal. As shown in FIG. 4 , the method includes the following steps:

[0210] Step 401: Receive first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs at the first target interface and is used to indicate that a target object is suspended or released at a second target interface, and the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0211] Among them, the explanation and meaning of the first event, the first indication information, the first target interface, the second target interface, and the target object can refer to the description of the aforementioned method embodiment.

[0212] Step 402: Suspend the target object or release the target object on the second target interface according to the first indication information.

[0213] In this step, the target object may be suspended or released on the second target interface according to the second information and / or third information of the first indication information.

[0214] In the disclosed embodiment, when a first event occurs on a first target interface, first indication information is sent to a second terminal via the first interface, thereby causing the second terminal to suspend or release a target object on the second target interface. Therefore, using the solution of the disclosed embodiment, if one service flow in a service cannot transmit, other service flows can be prevented from continuing data transmission, thereby ensuring transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0215] In some embodiments, in the embodiment of the present disclosure, the second terminal may also receive second indication information sent by the first terminal through the first interface.

[0216] The second indication information includes one or more of the following:

[0217] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0218] Identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed, such as Uu interface and / or PC5 interface indication information;

[0219] The service identifier for the service to be restored, such as the Common ID or the direct communication interface L2 ID corresponding to the service interrupted due to RLF;

[0220] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface, such as resuming data transmission of a target object;

[0221] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0222] The second indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0223] In some embodiments, the second terminal may resume data transmission of the target object on the second target interface according to the fourth information and / or the fifth information and / or the sixth information.

[0224] In the embodiments of the present disclosure, description is made by taking the first event being RLF or RRC connection reestablishment failure as an example.

[0225] In one embodiment, multiple terminals perform collaborative transmission of multimodal services on a direct communication interface. Referring to FIG5 , this embodiment may include:

[0226] Step 501: The first terminal performs a PC5 interface RLF determination.

[0227] If an RLF failure occurs on the PC5 interface, perform the following procedure.

[0228] Step 502: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0229] Specifically, only when the first terminal determines that there are one or more second terminals associated with the first terminal, the first terminal sends the first indication information to the one or more second terminals through the direct communication interface. The first indication information can be transmitted in any of broadcast, multicast or unicast modes.

[0230] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0231] 1) Determined according to first configuration information sent by the network device.

[0232] 2) Determined according to second configuration information sent by a higher layer of the first terminal.

[0233] The content of the first configuration information or the second configuration information includes one or more of the following:

[0234] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0235] 2) Identification information of a second terminal associated with the first terminal (which may be a Uu interface identifier, such as a C-RNTI or a direct communication interface identifier, such as a direct communication interface target L2 ID)

[0236] 3) The direct communication interface target L2 ID associated with the service.

[0237] The content of the first indication information includes one or more of the following:

[0238] First information, used to indicate RLF;

[0239] RLF corresponding interface (PC5 interface);

[0240] Service identification information (such as the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID corresponding to the service);

[0241] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0242] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0243] That is, the second information and the third information indicate: the operation instruction information to be performed by the second terminal and / or the target object on which the second terminal is to perform the operation, and the specific operation refers to whether to suspend the target object or release the target object.

[0244] Step 503: After receiving the first instruction information from the PC5 interface, the second terminal suspends the PC5 interface target object or releases the target object.

[0245] The target object includes: PC5 interface bearer and / or PC5 interface logical channel. The second terminal can determine the target object according to the first indication information. For example, the first indication information is a service identifier, and the terminal can determine the target object related to the service identifier according to the service identifier.

[0246] If the second terminal suspends the target object in step 503 , then in some embodiments, step 504 may be continued.

[0247] Step 504: If the RLF recovery is successful or the RRC connection is reestablished successfully, the first terminal sends second indication information to the one or more second terminals.

[0248] If a first terminal experiences an RLF on the target interface, the first terminal sends first indication information to one or more second terminals associated with it via the direct communication interface, and the second terminals suspend data transmission of the target object based on the received first indication information. If the first terminal successfully recovers from the RLF or successfully reestablishes the RLF, the first terminal sends second indication information to one or more second terminals associated with it via the direct communication interface.

[0249] The content of the second indication information includes one or more of the following:

[0250] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0251] Interface identifier (PC5 interface indication information) of successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0252] The service identifier for the service to be restored (for example, the Common ID or the direct communication interface L2 ID corresponding to the service interrupted due to RLF);

[0253] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0254] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0255] The fifth information and the sixth information indicate: the operation instruction information to be performed by the second terminal and / or the target object on which the second terminal is to perform the operation. The specific operation refers to the target object on which data transmission is to be restored.

[0256] Step 505: The second terminal resumes the data transmission of the target object suspended by the PC5 interface.

[0257] In one embodiment, multiple terminals perform collaborative transmission of multimodal services over a direct communication interface. Referring to FIG6 , this embodiment may include:

[0258] Step 601: The first terminal performs a PC5 interface RLF determination.

[0259] The first terminal performs a PC5 interface RLF determination. If the PC5 RLF fails, the terminal performs a PC5 RLF recovery or a PC5 RRC connection reestablishment. If the PC5 RLF recovery fails or the PC5 RRC connection reestablishment fails, step 602 is executed.

[0260] Step 602: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0261] Specifically, only when the first terminal determines that there are one or more second terminals associated with the first terminal, the first terminal sends the first indication information to the one or more second terminals through the direct communication interface. The first indication information can be transmitted in any of broadcast, multicast or unicast modes.

[0262] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0263] 1) Determined according to first configuration information sent by the network device.

[0264] 2) Determined according to second configuration information sent by a higher layer of the first terminal.

[0265] The content of the first configuration or the second configuration information includes one or more of the following:

[0266] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0267] 2) Direct communication interface target L2 ID corresponding to the service identification information;

[0268] 3) Identification information of the second terminal, such as the direct communication interface L2 ID corresponding to the second terminal.

[0269] The content of the first indication information includes one or more of the following:

[0270] The first information is used to indicate that the RRC connection reestablishment failed;

[0271] The interface corresponding to the RRC connection re-establishment failure (PC5 interface);

[0272] Service identification information (such as the Common ID corresponding to the service that was interrupted due to RRC connection re-establishment failure or the direct communication interface L2 ID corresponding to the service);

[0273] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0274] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0275] That is, the second information and the third information indicate: the operation instruction information to be performed by the second terminal and / or the target object on which the second terminal is to perform the operation, and the specific operation refers to whether to suspend the target object or release the target object.

[0276] Step 603: After receiving the first instruction information from the PC5 interface, the second terminal releases the target object of the PC5 interface.

[0277] The target object includes: PC5 interface bearer and / or PC5 interface logical channel. The second terminal can determine the target object according to the first indication information. For example, the first indication information is a service identifier, and the terminal can determine the target object related to the service identifier according to the service identifier.

[0278] In one embodiment of the present disclosure, multiple terminals perform coordinated transmission of multimodal services on the Uu interface. Referring to FIG7 , this embodiment may include:

[0279] Step 701: The first terminal performs a Uu interface RLF judgment.

[0280] The first terminal performs a Uu interface RLF judgment. If an RLF occurs on the Uu interface, step 702 is executed.

[0281] Step 702: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0282] Specifically, only when the first terminal determines that there are one or more second terminals associated with the first terminal, the first terminal sends the first indication information to the one or more second terminals through the direct communication interface. The first indication information can be transmitted in any of broadcast, multicast or unicast modes.

[0283] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0284] 1) Determined according to first configuration information sent by the network device.

[0285] 2) Determined according to second configuration information sent by a higher layer of the first terminal.

[0286] The content of the first configuration information or the second configuration information includes one or more of the following:

[0287] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0288] 2) Identification information of a second terminal associated with the first terminal (which may be a Uu interface identifier, such as a C-RNTI or a direct communication interface identifier, such as a direct communication interface target L2 ID)

[0289] 3) The direct communication interface target L2 ID associated with the service.

[0290] The content of the first indication information includes one or more of the following:

[0291] First information, used to indicate RLF;

[0292] RLF corresponding interface (Uu interface);

[0293] Service identification information (such as the Common ID or direct communication interface L2 ID corresponding to the service interrupted due to RLF);

[0294] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0295] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0296] That is, the second information and the third information indicate: the operation instruction information to be performed by the second terminal (such as the target object identifier to be stopped or the target object identifier to be released by the second terminal).

[0297] Step 703: After receiving the first indication information from the PC5 interface, the second terminal suspends the Uu interface target object or releases the Uu interface target object.

[0298] The target object includes: a Uu interface bearer and / or a Uu interface logical channel. The second terminal can determine the target object based on the first indication information. For example, if the first indication information is a service identifier, the terminal can determine the target object related to the service identifier based on the service identifier.

[0299] If the second terminal suspends the target object in step 703 , then in some embodiments, step 704 may be continued.

[0300] Step 704: When the Uu interface RLF recovery is successful or the RRC connection is successfully reestablished, the first terminal sends second indication information to one or more second terminals associated with it.

[0301] If a first terminal experiences an RLF on the target interface, the first terminal sends first indication information to one or more second terminals associated with it via the direct communication interface, and the second terminals suspend data transmission of the target object based on the received first indication information. If the first terminal successfully recovers from the RLF or successfully reestablishes the RLF, the first terminal sends second indication information to one or more second terminals associated with it via the direct communication interface.

[0302] The content of the second indication information includes one or more of the following:

[0303] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0304] Interface identifier (Uu interface indication information) of successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0305] The service identifier for the service to be restored (for example, the Common ID or the direct communication interface L2 ID corresponding to the service interrupted due to RLF);

[0306] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0307] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0308] The fifth information and the sixth information indicate: the operation instruction information to be performed by the second terminal and / or the target object on which the second terminal is to perform the operation. The specific operation refers to the target object on which data transmission is to be restored.

[0309] Step 705: The second terminal resumes the data transmission of the target object suspended by the Uu interface.

[0310] In one embodiment of the present disclosure, multiple terminals perform coordinated transmission of multimodal services on the Uu interface. Referring to Figure 8, the process may include:

[0311] Step 801: The first terminal performs a Uu interface RLF judgment.

[0312] The first terminal performs a Uu interface RLF judgment. If the Uu RLF fails, the first terminal performs a Uu interface RLF recovery or a Uu interface RRC connection reestablishment. If the Uu interface RLF recovery fails or the Uu interface RRC connection reestablishment fails, step 802 is executed.

[0313] Step 802: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0314] Specifically, only when the first terminal determines that there are one or more second terminals associated with the first terminal, the first terminal sends the first indication information to the one or more second terminals through the direct communication interface. The first indication information can be transmitted in any of broadcast, multicast or unicast modes.

[0315] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0316] 1) Determined according to first configuration information sent by the network device.

[0317] 2) Determined according to second configuration information sent by a higher layer of the first terminal.

[0318] The content of the first configuration information or the second configuration information includes one or more of the following:

[0319] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0320] 2) Direct communication interface target L2 ID corresponding to the service identification information;

[0321] 3) Identification information of the second terminal, such as the direct communication interface L2 ID corresponding to the second terminal.

[0322] The content of the first indication information includes one or more of the following:

[0323] The first information is used to indicate successful RLF recovery, successful RRC connection reestablishment, or successful RRC reconfiguration;

[0324] Interface identifier (PC5 interface indication information) of successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0325] The service identifier for the service to be restored (for example, the Common ID or the direct communication interface L2 ID corresponding to the service interrupted due to RLF);

[0326] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0327] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0328] That is, the second information and the third information indicate: the operation instruction information to be performed by the second terminal and / or the target object on which the second terminal is to perform the operation. The specific operation refers to the target object on which data transmission is to be resumed.

[0329] Step 803: After receiving the first instruction information from the PC5 interface, the second terminal releases the target object of the Uu interface.

[0330] The target object includes: a Uu interface bearer and / or a Uu interface logical channel. The terminal may determine the target object based on the first indication information. For example, if the first indication information is a service identifier, the terminal may determine the target object related to the service identifier based on the service identifier.

[0331] In the embodiment of the present disclosure, it can be ensured that when one service flow of a multimodal service cannot be transmitted, other service flows are prevented from continuing to transmit data, thereby avoiding unnecessary waste of resources.

[0332] The technical solution provided by the embodiment of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, advanced long term evolution (LTE-A) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) system, fifth generation mobile communication technology (5G) new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0333] 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.

[0334] 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.

[0335] 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 configuration 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, or beamforming.

[0336] As shown in FIG9 , the information indication device according to an embodiment of the present disclosure, applied to a first terminal, includes: a processor 900 configured to read a program in a memory 920 and execute the following process:

[0337] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0338] The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0339] The transceiver 910 is configured to receive and send data under the control of the processor 900 .

[0340] In FIG9 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 900 and memory represented by memory 920, 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 910 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 930 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.

[0341] The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 when performing operations.

[0342] The processor 900 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.

[0343] 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.

[0344] In some embodiments, the first event includes one or more of the following:

[0345] RLF;

[0346] RLF recovery failed;

[0347] RRC connection reestablishment failed;

[0348] RRC reconfiguration failed.

[0349] In some embodiments, the first indication information includes one or more of the following:

[0350] first information, used to indicate the first event;

[0351] a first target interface corresponding to the first event;

[0352] Business identification information;

[0353] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0354] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0355] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0356] Uu interface;

[0357] Direct communication interface.

[0358] In some embodiments, the target object includes one or more of the following:

[0359] Uu interface bearers and / or logical channels;

[0360] Direct communication interface bearers and / or logical channels.

[0361] The processor 900 is further configured to read the program and execute the following steps:

[0362] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0363] The processor 900 is further configured to read the program and execute the following steps:

[0364] The second terminal is determined according to one or more of the following information:

[0365] First configuration information sent by the network device;

[0366] Second configuration information sent by a higher layer of the first terminal.

[0367] In some embodiments, the first configuration information or the second configuration information includes one or more of the following:

[0368] Business identification information;

[0369] identification information of the second terminal;

[0370] The target L2 identifier of the direct communication interface associated with the service.

[0371] The processor 900 is further configured to read the program and execute the following steps:

[0372] If RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

[0373] In some embodiments, the second indication information includes one or more of the following:

[0374] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0375] Identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0376] The service identifier of the transmission to be resumed;

[0377] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0378] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0379] In some embodiments, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0380] Broadcast, multicast, unicast.

[0381] 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.

[0382] As shown in FIG10 , the information indication device according to an embodiment of the present disclosure, applied to a second terminal, includes: a processor 1000 configured to read a program in a memory 1020 and execute the following process:

[0383] receiving first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, and the second terminal including one or more terminals associated with the first terminal;

[0384] According to the first indication information, the target object is suspended or released on the second target interface.

[0385] The transceiver 1010 is configured to receive and send data under the control of the processor 1000 .

[0386] In FIG10 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 1000 and memory represented by memory 1020. 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 1010 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 1030 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.

[0387] The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 when performing operations.

[0388] The processor 1000 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.

[0389] 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.

[0390] In some embodiments, the first event includes one or more of the following:

[0391] RLF;

[0392] RLF recovery failed;

[0393] RRC connection reestablishment failed;

[0394] RRC reconfiguration failed.

[0395] In some embodiments, the first indication information includes one or more of the following:

[0396] first information, used to indicate the first event;

[0397] a first target interface corresponding to the first event;

[0398] Business identification information;

[0399] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0400] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0401] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0402] Uu interface;

[0403] Direct communication interface.

[0404] In some embodiments, the target object includes one or more of the following:

[0405] Uu interface bearers and / or logical channels;

[0406] Direct communication interface bearers and / or logical channels.

[0407] The processor 1000 is further configured to read the program and execute the following steps:

[0408] The target object is suspended or released on the second target interface according to the second information and / or the third information.

[0409] The processor 1000 is further configured to read the program and execute the following steps:

[0410] Receive second indication information sent by the first terminal through the first interface.

[0411] In some embodiments, the second indication information includes one or more of the following:

[0412] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0413] The interface identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0414] The service identifier of the transmission to be resumed;

[0415] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0416] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0417] The processor 1000 is further configured to read the program and execute the following steps:

[0418] Data transmission of the target object is resumed at the second target interface according to the fourth information and / or the fifth information and / or the sixth information.

[0419] 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.

[0420] As shown in FIG11 , the information indication device according to an embodiment of the present disclosure, applied to a first terminal, includes:

[0421] The first sending unit 1101 is configured to send first indication information to the second terminal through the first interface when a first event occurs on the first target interface;

[0422] The first indication information is used to instruct to suspend or release the target object on the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

[0423] In some embodiments, the first event includes one or more of the following:

[0424] RLF;

[0425] RLF recovery failed;

[0426] RRC connection reestablishment failed;

[0427] RRC reconfiguration failed.

[0428] In some embodiments, the first indication information includes one or more of the following:

[0429] first information, used to indicate the first event;

[0430] a first target interface corresponding to the first event;

[0431] Business identification information;

[0432] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0433] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0434] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0435] Uu interface;

[0436] Direct communication interface.

[0437] In some embodiments, the target object includes one or more of the following:

[0438] Uu interface bearers and / or logical channels;

[0439] Direct communication interface bearers and / or logical channels.

[0440] In some embodiments, the first sending unit is further configured to, if it is determined that the second terminal exists, send the first indication information to the second terminal through the first interface.

[0441] In some embodiments, the apparatus may further comprise:

[0442] The first processing unit is configured to determine the second terminal according to one or more of the following information:

[0443] First configuration information sent by the network device;

[0444] Second configuration information sent by a higher layer of the first terminal.

[0445] In some embodiments, the first configuration information or the second configuration information includes one or more of the following:

[0446] Business identification information;

[0447] identification information of the second terminal;

[0448] The target layer 2 L2 identifier of the direct communication interface associated with the service.

[0449] In some embodiments, the apparatus may further comprise:

[0450] The second sending unit is configured to send second indication information to the second terminal through the first interface if RLF recovery is successful or RRC reconfiguration is successful at the first target interface.

[0451] In some embodiments, the second indication information includes one or more of the following:

[0452] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0453] Identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0454] The service identifier of the transmission to be resumed;

[0455] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0456] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0457] In some embodiments, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0458] Broadcast, multicast, unicast.

[0459] 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.

[0460] As shown in FIG12 , the information indication device according to an embodiment of the present disclosure, applied to a second terminal, includes:

[0461] A first receiving unit 1201 is configured to receive first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, and the second terminal including one or more terminals associated with the first terminal;

[0462] The first processing unit 1202 is configured to suspend a target object or release the target object on the second target interface according to the first indication information.

[0463] In some embodiments, the first event includes one or more of the following:

[0464] RLF;

[0465] RLF recovery failed;

[0466] RRC connection reestablishment failed;

[0467] RRC reconfiguration failed.

[0468] In some embodiments, the first indication information includes one or more of the following:

[0469] first information, used to indicate the first event;

[0470] a first target interface corresponding to the first event;

[0471] Business identification information;

[0472] Second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0473] The third information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0474] In some embodiments, the first target interface or the second target interface includes one or more of the following:

[0475] Uu interface;

[0476] Direct communication interface.

[0477] In some embodiments, the target object includes one or more of the following:

[0478] Uu interface bearers and / or logical channels;

[0479] Direct communication interface bearers and / or logical channels.

[0480] In some embodiments, the first processing unit is further configured to suspend or release the target object on the second target interface according to the second information and / or the third information.

[0481] In some embodiments, the apparatus may further comprise:

[0482] The second receiving unit is configured to receive second indication information sent by the first terminal through the first interface.

[0483] In some embodiments, the second indication information includes one or more of the following:

[0484] The fourth information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0485] The interface identifier of the interface that successfully performs RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0486] The service identifier of the transmission to be resumed;

[0487] Fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0488] The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

[0489] In some embodiments, the first processing unit is further configured to resume data transmission of the target object at the second target interface based on the fourth information and / or the fifth information and / or the sixth information.

[0490] 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.

[0491] 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.

[0492] 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.

[0493] 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.

[0494] 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.

[0495] 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.

[0496] 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.

[0497] 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.

[0498] 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).

[0499] 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."

[0500] 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 terminal, comprising: When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface; The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

2. The method according to claim 1, wherein: The first event includes one or more of the following: Radio link failure RLF; RLF recovery failed; RRC connection reestablishment failed; Radio Resource Control (RRC) reconfiguration failed.

3. The method according to claim 1, wherein: The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

4. The method according to claim 1, wherein: The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

5. The method according to claim 1, wherein: The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

6. The method according to claim 1, wherein: The sending the first indication information to the second terminal through the first interface includes: If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

7. The method according to claim 1 or 6, further comprising: The second terminal is determined according to one or more of the following information: First configuration information sent by the network device; Second configuration information sent by a high layer of the first terminal.

8. The method according to claim 7, wherein: The first configuration information or the second configuration information includes one or more of the following: Business identification information; identification information of the second terminal; The direct communication interface target layer 2 L2 identifier associated with the service.

9. The method according to claim 1, further comprising: If RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

10. The method according to claim 9, wherein: The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

11. The method according to claim 9 or 10, wherein: The first indication information and / or the second indication information is transmitted in one or more of the following ways: Broadcast, multicast, unicast.

12. An information indication method, applied to a second terminal, comprising: Receiving first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal; According to the first indication information, the target object is suspended or released on the second target interface.

13. The method according to claim 12, wherein: The first event includes one or more of the following: RLF; RLF recovery failed; RRC connection reestablishment failed; RRC reconfiguration failed.

14. The method according to claim 12, wherein: The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

15. The method according to claim 12, wherein: The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

16. The method according to claim 12, wherein: The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

17. The method according to claim 14, wherein: The suspending the target object or releasing the target object on the second target interface according to the first indication information includes: The target object is suspended or released at the second target interface according to the second information and / or the third information.

18. The method according to claim 12, further comprising: Receive second indication information sent by the first terminal through the first interface.

19. The method according to claim 18, wherein: The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

20. The method according to claim 19, further comprising: According to the fifth information and / or the sixth information, data transmission of the target object is resumed at the second target interface.

21. An information indication device, applied to a first 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: When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface; The first indication information is used to instruct to suspend or release the target object at the second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

22. The device according to claim 21, wherein The first event includes one or more of the following: RLF; RLF recovery failed; RRC connection reestablishment failed; RRC reconfiguration failed.

23. The device according to claim 21, wherein The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

24. The device according to claim 21, wherein The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

25. The device according to claim 21, wherein The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

26. The device according to claim 21, wherein The processor is further configured to read the computer program in the memory and perform the following operations: If it is determined that the second terminal exists, the first interface sends the first - Instruction information.

27. The device according to claim 21 or 26, wherein: The processor is further configured to read the computer program in the memory and perform the following operations: The second terminal is determined according to one or more of the following information: First configuration information sent by the network device; Second configuration information sent by a high layer of the first terminal.

28. The device according to claim 27, wherein The first configuration information or the second configuration information includes one or more of the following: Business identification information; identification information of the second terminal; The direct communication interface target L2 identifier associated with the service.

29. The device according to claim 28, wherein The processor is further configured to read the computer program in the memory and perform the following operations: If RLF recovery is successful or RRC reconfiguration is successful on the first target interface, second indication information is sent to the second terminal through the first interface.

30. The device according to claim 29, wherein: The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

31. The device according to claim 29, wherein: The first indication information and / or the second indication information is transmitted in one or more of the following ways: Broadcast, multicast, unicast.

32. An information indication device, applied to a second 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 first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend or release a target object on a second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal; According to the first indication information, the target object is suspended or released on the second target interface.

33. The device according to claim 32, wherein: The first event includes one or more of the following: RLF; RLF recovery failed; RRC connection reestablishment failed; RRC reconfiguration failed.

34. The device according to claim 32, wherein: The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

35. The device according to claim 32, wherein: The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

36. The device according to claim 32, wherein: The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

37. The device according to claim 34, wherein: The processor is further configured to read the computer program in the memory and perform the following operations: The target object is suspended or released at the second target interface according to the second information and / or the third information.

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: Receive second indication information sent by the first terminal through the first interface.

39. The device according to claim 38, wherein The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

40. The device according to claim 39, wherein The processor is further configured to read the computer program in the memory and perform the following operations: According to the fifth information and / or the sixth information, data transmission of the target object is resumed at the second target interface.

41. An information indication device, applied to a first terminal, comprising: A first sending unit, configured to send first indication information to the second terminal through the first interface when a first event occurs on the first target interface; The first indication information is used to indicate whether to suspend the target object or release the target object on the second target interface. The first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal includes one or more terminals associated with the first terminal.

42. The device according to claim 41, wherein The first event includes one or more of the following: RLF; RLF recovery failed; RRC connection reestablishment failed; RRC reconfiguration failed.

43. The device according to claim 41, wherein The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

44. The device according to claim 43, wherein The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

45. The apparatus of claim 43, wherein: The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

46. ​​The apparatus of claim 41, wherein: The first sending unit is further configured to, if it is determined that the second terminal exists, send the first indication information to the second terminal through the first interface.

47. The apparatus of claim 41, wherein: The device may also include: The first processing unit is configured to determine the second terminal according to one or more of the following information: First configuration information sent by the network device; Second configuration information sent by a high layer of the first terminal.

48. The apparatus of claim 47, wherein: The first configuration information or the second configuration information includes one or more of the following: Business identification information; identification information of the second terminal; The direct communication interface target layer 2 L2 identifier associated with the service.

49. The apparatus of claim 48, wherein: The device may also include: The second sending unit is used to send second indication information to the second terminal through the first interface if RLF recovery is successful or RRC reconfiguration is successful on the first target interface.

50. The apparatus of claim 49, wherein: The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

51. The apparatus of claim 49, wherein: The first indication information and / or the second indication information is transmitted in one or more of the following ways: Broadcast, multicast, unicast.

52. An information indication device, applied to a second terminal, comprising: a first receiving unit, configured to receive first indication information sent by a first terminal through a first interface, wherein the first indication information is sent when a first event occurs on the first target interface and is used to instruct to suspend a target object or release a target object on a second target interface, the first interface being a direct communication interface between the first terminal and the second terminal, the second terminal including a first terminal connected to the first terminal; One or more terminals with which an end has an associated relationship; The first processing unit is used to suspend the target object or release the target object on the second target interface according to the first indication information.

53. The apparatus of claim 52, wherein: The first event includes one or more of the following: RLF; RLF recovery failed; RRC connection reestablishment failed; RRC reconfiguration failed.

54. The apparatus of claim 52, wherein: The first indication information includes one or more of the following: first information, used to indicate the first event; a first target interface corresponding to the first event; Business identification information; second information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The third information is used to indicate a target object corresponding to the operation to be performed by the second terminal on the second target interface.

55. The apparatus of claim 52, wherein: The first target interface or the second target interface includes one or more of the following: Uu interface; Direct communication interface.

56. The apparatus of claim 52, wherein: The target objects include one or more of the following: Uu interface bearers and / or logical channels; Direct communication interface bearers and / or logical channels.

57. The apparatus of claim 54, wherein: The first processing unit is further configured to suspend or release the target object on the second target interface according to the second information and / or the third information.

58. The apparatus of claim 52, wherein: The device may also include: The second receiving unit is configured to receive second indication information sent by the first terminal through the first interface.

59. The apparatus of claim 58, wherein: The second indication information includes one or more of the following: The fourth information is used to indicate that the RLF recovery is successful or the RRC connection is successfully reestablished or the RRC reconfiguration is successful; The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed; The service identifier of the transmission to be restored; fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface; The sixth information is used to indicate the target object corresponding to the operation to be performed by the second terminal on the second target interface.

60. The apparatus of claim 59, wherein: The first processing unit is further configured to resume data transmission of the target object at the second target interface according to the fourth information and / or the fifth information and / or the sixth information.

61. 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 20.

Images