Information indication method and device and readable storage medium

Abstract

The invention discloses an information indication method and device and a readable storage medium, relates to the technical field of communication, and aims to ensure transmission synchronization among a plurality of different target objects corresponding to a multi-modal service. The method comprises the following steps: under the condition that a first event occurs in a first target interface, sending first indication information to a second terminal through a first interface; wherein the first indication information is used for indicating that a target object is suspended or released at a second target interface, the first interface is a direct communication interface between the first terminal and the second terminal, and the second terminal comprises one or more terminals having an association relationship with the first terminal. According to the embodiment of the invention, transmission synchronization among a plurality of different target objects corresponding to the multi-modal service can be ensured.

Description

Technical Field

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

[0002] like Figure 1 As shown, traditional wireless communication uses cellular network communication, that is, the terminal and the network side equipment transmit uplink and downlink data / control information through the Uu interface. Figure 2 As shown, direct communication refers to a method in which adjacent terminals can transmit data over a direct communication link (also called Sidelink, bypass or PC5 link) within a short distance. The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a bypass interface, Sidelink interface or PC5 interface).

[0003] Existing technologies have introduced extended reality (XR) services, including augmented reality (AR), virtual reality (VR), mixed reality (MR), etc. XR services support multi-modality, in which one user terminal or multiple user terminals can simultaneously transmit different service quality flows (QoS Flow) of the same service.

[0004] In the prior art, the radio link failures (RLF) of different terminals are independent of each other. However, in the multimodal XR service transmission scenario, if multiple terminals transmit different quality of service (QoS) flows of the same XR service, if one of the terminals has an RLF, how to avoid the transmission desynchronization of the multimodal service is a problem that needs to be considered. Summary of the invention

[0005] Embodiments of the present application provide an information indication method, device, and readable storage medium to ensure transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0006] In a first aspect, an embodiment of the present application provides an information indication method, which is applied to a first terminal, including:

[0007] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0008] 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.

[0009] Optionally, the first event includes one or more of the following:

[0010] RLF;

[0011] RLF recovery failed;

[0012] RRC connection reestablishment failed;

[0013] Radio Resource Control (RRC) reconfiguration failed.

[0014] Optionally, the first indication information includes one or more of the following:

[0015] first information, used to indicate the first event;

[0016] a first target interface corresponding to the first event;

[0017] Business identification information;

[0018] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0019] 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.

[0020] Optionally, the first target interface or the second target interface includes one or more of the following:

[0021] Uu interface;

[0022] Direct communication interface.

[0023] Optionally, the target object includes one or more of the following:

[0024] Uu interface bearers and / or logical channels;

[0025] Direct communication interface bearers and / or logical channels.

[0026] Optionally, sending the first indication information to the second terminal through the first interface includes:

[0027] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0028] Optionally, the method further includes:

[0029] The second terminal is determined according to one or more of the following information:

[0030] First configuration information sent by the network device;

[0031] Second configuration information sent by a high layer of the first terminal.

[0032] Optionally, the first configuration information or the second configuration information includes one or more of the following:

[0033] Business identification information;

[0034] identification information of the second terminal;

[0035] The direct communication interface target layer 2 L2 identifier associated with the service.

[0036] Optionally, the method further includes:

[0037] 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.

[0038] Optionally, the second indication information includes one or more of the following:

[0039] 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;

[0040] The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0041] The service identifier of the transmission to be restored;

[0042] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0043] 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.

[0044] Optionally, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0045] Broadcast, multicast, unicast.

[0046] In a second aspect, an embodiment of the present application provides an information indication method, which is applied to a second terminal, including:

[0047] 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;

[0048] According to the first indication information, the target object is suspended or released on the second target interface.

[0049] Optionally, the first event includes one or more of the following:

[0050] RLF;

[0051] RLF recovery failed;

[0052] RRC connection reestablishment failed;

[0053] RRC reconfiguration failed.

[0054] Optionally, the first indication information includes one or more of the following:

[0055] first information, used to indicate the first event;

[0056] a first target interface corresponding to the first event;

[0057] Business identification information;

[0058] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0059] 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.

[0060] Optionally, the first target interface or the second target interface includes one or more of the following:

[0061] Uu interface;

[0062] Direct communication interface.

[0063] Optionally, the target object includes one or more of the following:

[0064] Uu interface bearers and / or logical channels;

[0065] Direct communication interface bearers and / or logical channels.

[0066] Optionally, suspending the target object or releasing the target object on the second target interface according to the first indication information includes:

[0067] The target object is suspended or released at the second target interface according to the second information and / or the third information.

[0068] Optionally, the method further includes:

[0069] Receive second indication information sent by the first terminal through the first interface.

[0070] Optionally, the second indication information includes one or more of the following:

[0071] 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;

[0072] The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed;

[0073] The service identifier of the transmission to be restored;

[0074] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0075] 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.

[0076] Optionally, the method further includes:

[0077] According to the fifth information and / or the sixth information, data transmission of the target object is resumed at the second target interface.

[0078] In a third aspect, an embodiment of the present application provides an information indication device, applied to a first terminal, including: a memory, a transceiver, and a processor:

[0079] 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:

[0080] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0081] 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.

[0082] Optionally, the first event includes one or more of the following:

[0083] RLF;

[0084] RLF recovery failed;

[0085] RRC connection reestablishment failed;

[0086] RRC reconfiguration failed.

[0087] Optionally, the first indication information includes one or more of the following:

[0088] first information, used to indicate the first event;

[0089] a first target interface corresponding to the first event;

[0090] Business identification information;

[0091] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0092] 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.

[0093] Optionally, the first target interface or the second target interface includes one or more of the following:

[0094] Uu interface;

[0095] Direct communication interface.

[0096] Optionally, the target object includes one or more of the following:

[0097] Uu interface bearers and / or logical channels;

[0098] Direct communication interface bearers and / or logical channels.

[0099] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0100] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

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

[0102] The second terminal is determined according to one or more of the following information:

[0103] First configuration information sent by the network device;

[0104] Second configuration information sent by a high layer of the first terminal.

[0105] Optionally, the first configuration information or the second configuration information includes one or more of the following:

[0106] Business identification information;

[0107] identification information of the second terminal;

[0108] The direct communication interface target L2 identifier associated with the service.

[0109] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0110] 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.

[0111] Optionally, the second indication information includes one or more of the following:

[0112] 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;

[0113] The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0114] The service identifier of the transmission to be restored;

[0115] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0116] 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.

[0117] Optionally, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0118] Broadcast, multicast, unicast.

[0119] In a fourth aspect, an embodiment of the present application provides an information indication device, which is applied to a second terminal, including: a memory, a transceiver, and a processor:

[0120] 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:

[0121] 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;

[0122] According to the first indication information, the target object is suspended or released on the second target interface.

[0123] Optionally, the first event includes one or more of the following:

[0124] RLF;

[0125] RLF recovery failed;

[0126] RRC connection reestablishment failed;

[0127] RRC reconfiguration failed.

[0128] Optionally, the first indication information includes one or more of the following:

[0129] first information, used to indicate the first event;

[0130] a first target interface corresponding to the first event;

[0131] Business identification information;

[0132] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0133] 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.

[0134] Optionally, the first target interface or the second target interface includes one or more of the following:

[0135] Uu interface;

[0136] Direct communication interface.

[0137] Optionally, the target object includes one or more of the following:

[0138] Uu interface bearers and / or logical channels;

[0139] Direct communication interface bearers and / or logical channels.

[0140] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0141] The target object is suspended or released at the second target interface according to the second information and / or the third information.

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

[0143] Receive second indication information sent by the first terminal through the first interface.

[0144] Optionally, the second indication information includes one or more of the following:

[0145] 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;

[0146] The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed;

[0147] The service identifier of the transmission to be restored;

[0148] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0149] 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.

[0150] Optionally, the processor is further configured to read the computer program in the memory and perform the following operations:

[0151] According to the fifth information and / or the sixth information, data transmission of the target object is resumed at the second target interface.

[0152] In a fifth aspect, an embodiment of the present application provides an information indication device, applied to a first terminal, including:

[0153] 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;

[0154] 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.

[0155] In a sixth aspect, an embodiment of the present application provides an information indication device, applied to a second terminal, including:

[0156] 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 at the first target interface and is used to instruct to suspend or release a target object at 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;

[0157] 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.

[0158] In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps in the information indication method as described above are implemented.

[0159] In the embodiment of the present application, when the first event occurs at the first target interface, the first indication information is sent to the second terminal via the first interface, so that the second terminal can suspend the target object or release the target object at the second target interface. Therefore, by using the solution of the embodiment of the present application, when one service flow in the service cannot be transmitted, other service flows can be prevented from continuing to transmit data, thereby ensuring the transmission synchronization between multiple different target objects corresponding to the multimodal service. BRIEF DESCRIPTION OF THE DRAWINGS

[0160] Figure 1 is a schematic diagram of cellular network communication;

[0161] Figure 2 It is a schematic diagram of direct communication;

[0162] Figure 3 It is one of the flow charts of the information indication method provided in the embodiment of the present application;

[0163] Figure 4 This is the second flowchart of the information indication method provided in the embodiment of the present application;

[0164] Figure 5 This is the third flowchart of the information indication method provided in the embodiment of the present application;

[0165] Figure 6 This is the fourth flowchart of the information indication method provided in the embodiment of the present application;

[0166] Figure 7 This is the fifth flow chart of the information indication method provided in the embodiment of the present application;

[0167] Figure 8 This is the sixth flowchart of the information indication method provided in the embodiment of the present application;

[0168] Fig. 9 It is one of the structural diagrams of the information indication device provided in the embodiment of the present application;

[0169] Fig.10 This is the second structural diagram of the information indication device provided in the embodiment of the present application;

[0170] Fig.11 This is the third structural diagram of the information indication device provided in the embodiment of the present application;

[0171] Fig.12 This is the fourth structural diagram of the information indication device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0172] In the embodiments of the present application, the term "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0173] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0174] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0175] The embodiments of the present application provide an information indication method and device to ensure transmission synchronization between multiple different target objects corresponding to a multimodal service.

[0176] Among them, the method and the device are based on the same application concept. Since the method and the device solve the problem in a similar principle, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0177] See also Figure 3 , Figure 3 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a first terminal, such as Figure 3 As shown, the following steps are included:

[0178] Step 301: When a first event occurs on a first target interface, first indication information is sent to a second terminal through a first interface.

[0179] 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.

[0180] In the embodiment of the present application, “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.

[0181] The first event includes one or more of the following: RLF; RLF recovery failure; RRC connection reestablishment failure; RRC reconfiguration failure.

[0182] The first target interface or the second target interface includes one or more of the following: Uu interface; direct communication interface (PC5 interface).

[0183] 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.

[0184] The first indication information includes one or more of the following:

[0185] first information, used to indicate the first event;

[0186] The first target interface corresponding to the first event, such as a Uu interface and / or a PC5 interface;

[0187] 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;

[0188] The second information is used to indicate information about the operation to be performed by the second terminal on the second target interface, such as suspending the target object or releasing the target object;

[0189] 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.

[0190] The first indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0191] In this embodiment of the present application, if the first terminal determines that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

[0192] Specifically, the first terminal may determine the second terminal according to one or more of the following information:

[0193] First configuration information sent by the network device; second configuration information sent by the high layer of the first terminal.

[0194] The first configuration information or the second configuration information includes one or more of the following:

[0195] Service identification information, such as the Common ID corresponding to the XR service;

[0196] The identification information of the second terminal may be a Uu interface identifier, such as a cell radio network temporary identifier (CellRNTI, C-RNTI), or a direct communication interface identifier, such as a direct communication interface target L2 ID;

[0197] The direct communication interface target L2 identifier associated with the service.

[0198] In the embodiment of the present application, when the first event occurs at the first target interface, the first indication information is sent to the second terminal via the first interface, so that the second terminal can suspend the target object or release the target object at the second target interface. Therefore, by using the solution of the embodiment of the present application, when one service flow in the service cannot be transmitted, other service flows can be prevented from continuing to transmit data, thereby ensuring the transmission synchronization between multiple different target objects corresponding to the multimodal service.

[0199] Optionally, based on the above embodiment, 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.

[0200] The second indication information includes one or more of the following:

[0201] 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;

[0202] The identifier of the interface for successful RLF recovery or RRC connection reestablishment or RRC reconfiguration, such as Uu interface and / or PC5 interface indication information;

[0203] The service identifier of the transmission to be restored, such as the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID;

[0204] 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;

[0205] 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.

[0206] The second indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0207] See also Figure 4 , Figure 4 is a flowchart of the information indication method provided in an embodiment of the present application, which is applied to a second terminal, such as Figure 4 As shown, the following steps are included:

[0208] 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 suspending or releasing a target object at 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.

[0209] 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.

[0210] Step 402: Suspend the target object or release the target object on the second target interface according to the first indication information.

[0211] In this step, the target object may be suspended or released on the second target interface according to the second information and / or the third information of the first indication information.

[0212] In the embodiment of the present application, when the first event occurs at the first target interface, the first indication information is sent to the second terminal via the first interface, so that the second terminal can suspend the target object or release the target object at the second target interface. Therefore, by using the solution of the embodiment of the present application, when one service flow in the service cannot be transmitted, other service flows can be prevented from continuing to transmit data, thereby ensuring the transmission synchronization between multiple different target objects corresponding to the multimodal service.

[0213] Optionally, in this embodiment of the present application, the second terminal may also receive second indication information sent by the first terminal through the first interface.

[0214] The second indication information includes one or more of the following:

[0215] 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;

[0216] The identifier of the interface for successful RLF recovery or RRC connection reestablishment or RRC reconfiguration, such as Uu interface and / or PC5 interface indication information;

[0217] The service identifier of the transmission to be restored, such as the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID;

[0218] 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;

[0219] 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.

[0220] The second indication information may be transmitted in one or more ways including broadcast, multicast or unicast.

[0221] Optionally, 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.

[0222] In the embodiment of the present application, description is made by taking the first event being RLF or RRC connection reestablishment failure as an example.

[0223] In one embodiment, multiple terminals perform collaborative transmission of multi-modal services on a direct communication interface. Figure 5 , this embodiment may include:

[0224] Step 501: The first terminal executes the PC5 interface RLF judgment.

[0225] If an RLF failure occurs on the PC5 interface, perform the following process.

[0226] Step 502: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0227] 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 one of broadcast, multicast or unicast modes.

[0228] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0229] 1) Determined according to first configuration information sent by the network device.

[0230] 2) Determined according to second configuration information sent by a high layer of the first terminal.

[0231] The content of the first configuration information or the second configuration information includes a combination of one or more of the following:

[0232] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0233] 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)

[0234] 3) Direct communication interface target L2 ID associated with the service.

[0235] The content of the first indication information includes one or more of the following combinations:

[0236] First information, used to indicate RLF;

[0237] RLF corresponding interface (PC5 interface);

[0238] 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);

[0239] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0240] 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.

[0241] 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 suspending the target object or releasing the target object.

[0242] Step 503: After receiving the first indication information from the PC5 interface, the second terminal suspends the PC5 interface target object or releases the target object.

[0243] 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.

[0244] If the second terminal suspends the target object in step 503 , then step 504 may be optionally continued.

[0245] 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.

[0246] If the first terminal has an RLF on the target interface, the first terminal sends a first indication message to one or more second terminals associated with it through a direct communication interface, and the second terminal suspends the data transmission of the target object according to the received first indication message. If the first terminal recovers from the RLF successfully or reestablishes successfully, the first terminal sends a second indication message to one or more second terminals associated with it through a direct communication interface.

[0247] The content of the second indication information includes one or more of the following combinations:

[0248] 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;

[0249] Interface identifier (PC5 interface indication information) of successful RLF recovery or RRC connection reestablishment or RRC reconfiguration;

[0250] The service identifier of the transmission to be restored (for example, the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID);

[0251] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0252] 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.

[0253] The fifth information and the sixth information indicate: the operation instruction information to be executed by the second terminal and / or the target object on which the second terminal is to execute the operation, and the specific operation refers to the target object on which data transmission is to be restored.

[0254] Step 505: The second terminal resumes the data transmission of the target object suspended by the PC5 interface.

[0255] In one embodiment, multiple terminals perform collaborative transmission of multi-modal services on a direct communication interface. Figure 6 , this embodiment may include:

[0256] Step 601: The first terminal performs a PC5 interface RLF decision.

[0257] The first terminal performs a PC5 interface RLF decision. If the PC5 RLF fails, the terminal performs PC5 RLF recovery or PC5 RRC connection reconstruction. If the PC5 RLF recovery fails or the PC5 RRC connection reconstruction fails, step 602 is executed.

[0258] Step 602: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0259] 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 one of broadcast, multicast or unicast modes.

[0260] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0261] 1) Determined according to first configuration information sent by the network device.

[0262] 2) Determined according to second configuration information sent by a high layer of the first terminal.

[0263] The content of the first configuration or the second configuration information includes a combination of one or more of the following:

[0264] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0265] 2) Direct communication interface target L2 ID corresponding to the service identification information;

[0266] 3) Identification information of the second terminal, such as the direct communication interface L2 ID corresponding to the second terminal.

[0267] The content of the first indication information includes one or more of the following combinations:

[0268] The first information is used to indicate that the RRC connection reestablishment fails;

[0269] The interface corresponding to the RRC connection reestablishment failure (PC5 interface);

[0270] Service identification information (such as the Common ID corresponding to the service that was interrupted due to RRC connection reestablishment failure or the direct communication interface L2 ID corresponding to the service);

[0271] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0272] 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.

[0273] 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 suspending the target object or releasing the target object.

[0274] Step 603: After receiving the first instruction information from the PC5 interface, the second terminal releases the target object of the PC5 interface.

[0275] 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.

[0276] In one embodiment of the present application, multiple terminals perform coordinated transmission of multi-modal services on the Uu interface. Figure 7 , this embodiment may include:

[0277] Step 701: The first terminal performs Uu interface RLF judgment.

[0278] The first terminal performs a Uu interface RLF judgment. If the Uu interface has an RLF, step 702 is executed.

[0279] Step 702: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0280] 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 one of broadcast, multicast or unicast modes.

[0281] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0282] 1) Determined according to first configuration information sent by the network device.

[0283] 2) Determined according to second configuration information sent by a high layer of the first terminal.

[0284] The content of the first configuration information or the second configuration information includes a combination of one or more of the following:

[0285] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0286] 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)

[0287] 3) Direct communication interface target L2 ID associated with the service.

[0288] The content of the first indication information includes one or more of the following combinations:

[0289] First information, used to indicate RLF;

[0290] Interface corresponding to RLF (Uu interface);

[0291] Service identification information (such as the Common ID or direct communication interface L2 ID corresponding to the service interrupted due to RLF);

[0292] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0293] 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.

[0294] 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).

[0295] 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.

[0296] The target object includes: Uu interface bearer and / or Uu 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.

[0297] If the second terminal suspends the target object in step 703 , then step 704 may be optionally continued.

[0298] 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.

[0299] If the first terminal has an RLF on the target interface, the first terminal sends a first indication message to one or more second terminals associated with it through a direct communication interface, and the second terminal suspends the data transmission of the target object according to the received first indication message. If the first terminal recovers from the RLF successfully or reestablishes successfully, the first terminal sends a second indication message to one or more second terminals associated with it through a direct communication interface.

[0300] The content of the second indication information includes one or more of the following combinations:

[0301] 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;

[0302] Interface identifier (Uu interface indication information) of successful RLF recovery or RRC connection reestablishment or RRC reconfiguration;

[0303] The service identifier of the transmission to be restored (for example, the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID);

[0304] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0305] 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.

[0306] The fifth information and the sixth information indicate: the operation instruction information to be executed by the second terminal and / or the target object on which the second terminal is to execute the operation, and the specific operation refers to the target object on which data transmission is to be restored.

[0307] Step 705: The second terminal resumes the data transmission of the target object suspended by the Uu interface.

[0308] In one embodiment of the present application, multiple terminals perform coordinated transmission of multi-modal services on the Uu interface. Figure 8 , the process may include:

[0309] Step 801: The first terminal performs Uu interface RLF judgment.

[0310] The first terminal performs Uu interface RLF judgment. If Uu RLF fails, the first terminal performs Uu interface RLF recovery or Uu interface RRC connection reestablishment. If Uu interface RLF recovery fails or Uu interface RRC connection reestablishment fails, step 802 is executed.

[0311] Step 802: The first terminal sends first indication information to one or more second terminals associated with it through the PC5 interface.

[0312] 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 one of broadcast, multicast or unicast modes.

[0313] The method for the first terminal to determine the second terminal associated with it includes any one of the following:

[0314] 1) Determined according to first configuration information sent by the network device.

[0315] 2) Determined according to second configuration information sent by a high layer of the first terminal.

[0316] The content of the first configuration information or the second configuration information includes a combination of one or more of the following:

[0317] 1) Business identification information, such as the Common ID corresponding to the XR business;

[0318] 2) Direct communication interface target L2 ID corresponding to the service identification information;

[0319] 3) Identification information of the second terminal, such as the direct communication interface L2 ID corresponding to the second terminal.

[0320] The content of the first indication information includes one or more of the following combinations:

[0321] The first information is used to indicate that RLF recovery is successful or RRC connection reestablishment is successful or RRC reconfiguration is successful;

[0322] Interface identifier (PC5 interface indication information) of successful RLF recovery or RRC connection reestablishment or RRC reconfiguration;

[0323] The service identifier of the transmission to be restored (for example, the Common ID corresponding to the service interrupted due to RLF or the direct communication interface L2 ID);

[0324] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0325] 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.

[0326] 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 the target object on which data transmission is to be restored.

[0327] Step 803: After receiving the first indication information from the PC5 interface, the second terminal releases the target object of the Uu interface.

[0328] The target object includes: Uu interface bearer and / or Uu interface logical channel. The terminal can determine the target object according to 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 according to the service identifier.

[0329] In the embodiment of the present application, it can be ensured that when one of the service flows of a multimodal service cannot be transmitted, other service flows are prevented from continuing to transmit data, thereby avoiding unnecessary waste of resources.

[0330] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, the applicable system can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, a LTE frequency division duplex (FDD) system, a LTE time division duplex (TDD) system, an advanced long term evolution (LTE-A) system, a universal mobile telecommunication system (UMTS), a world-wide interoperability for microwave access (WiMAX) system, a 5G new air interface (NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0331] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0332] The network device involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0333] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0334] like Fig. 9 As shown, the information indication device of the embodiment of the present application is applied to the first terminal, including: a processor 900, which is used to read the program in the memory 920 and execute the following process:

[0335] When a first event occurs on the first target interface, sending first indication information to the second terminal through the first interface;

[0336] 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.

[0337] The transceiver 910 is configured to receive and send data under the control of the processor 900 .

[0338] Among them, Fig. 9 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 900 and various circuits of memory represented by memory 920 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 910 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 930 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0339] 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.

[0340] 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.

[0341] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0342] Optionally, the first event includes one or more of the following:

[0343] RLF;

[0344] RLF recovery failed;

[0345] RRC connection reestablishment failed;

[0346] RRC reconfiguration failed.

[0347] Optionally, the first indication information includes one or more of the following:

[0348] first information, used to indicate the first event;

[0349] a first target interface corresponding to the first event;

[0350] Business identification information;

[0351] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0352] 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.

[0353] Optionally, the first target interface or the second target interface includes one or more of the following:

[0354] Uu interface;

[0355] Direct communication interface.

[0356] Optionally, the target object includes one or more of the following:

[0357] Uu interface bearers and / or logical channels;

[0358] Direct communication interface bearers and / or logical channels.

[0359] The processor 900 is further configured to read the program and execute the following steps:

[0360] If it is determined that the second terminal exists, the first indication information is sent to the second terminal through the first interface.

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

[0362] The second terminal is determined according to one or more of the following information:

[0363] First configuration information sent by the network device;

[0364] Second configuration information sent by a high layer of the first terminal.

[0365] Optionally, the first configuration information or the second configuration information includes one or more of the following:

[0366] Business identification information;

[0367] identification information of the second terminal;

[0368] The direct communication interface target L2 identifier associated with the service.

[0369] The processor 900 is further configured to read the program and execute the following steps:

[0370] 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.

[0371] Optionally, the second indication information includes one or more of the following:

[0372] 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;

[0373] The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0374] The service identifier of the transmission to be restored;

[0375] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0376] 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.

[0377] Optionally, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0378] Broadcast, multicast, unicast.

[0379] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0380] like Fig.10 As shown, the information indication device of the embodiment of the present application is applied to the second terminal, including: a processor 1000, which is used to read the program in the memory 1020 and execute the following process:

[0381] 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;

[0382] According to the first indication information, the target object is suspended or released on the second target interface.

[0383] The transceiver 1010 is configured to receive and send data under the control of the processor 1000 .

[0384] Among them, Fig.10 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 1010 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1030 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0385] 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.

[0386] 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.

[0387] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0388] Optionally, the first event includes one or more of the following:

[0389] RLF;

[0390] RLF recovery failed;

[0391] RRC connection reestablishment failed;

[0392] RRC reconfiguration failed.

[0393] Optionally, the first indication information includes one or more of the following:

[0394] first information, used to indicate the first event;

[0395] a first target interface corresponding to the first event;

[0396] Business identification information;

[0397] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0398] 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.

[0399] Optionally, the first target interface or the second target interface includes one or more of the following:

[0400] Uu interface;

[0401] Direct communication interface.

[0402] Optionally, the target object includes one or more of the following:

[0403] Uu interface bearers and / or logical channels;

[0404] Direct communication interface bearers and / or logical channels.

[0405] The processor 1000 is further configured to read the program and execute the following steps:

[0406] The target object is suspended or released at the second target interface according to the second information and / or the third information.

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

[0408] Receive second indication information sent by the first terminal through the first interface.

[0409] Optionally, the second indication information includes one or more of the following:

[0410] 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;

[0411] The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed;

[0412] The service identifier of the transmission to be restored;

[0413] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0414] 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.

[0415] The processor 1000 is further configured to read the program and execute the following steps:

[0416] According to the fourth information and / or the fifth information and / or the sixth information, data transmission of the target object is resumed at the second target interface.

[0417] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0418] like Fig.11 As shown, the information indication device of the embodiment of the present application is applied to the first terminal, including:

[0419] 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;

[0420] 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.

[0421] Optionally, the first event includes one or more of the following:

[0422] RLF;

[0423] RLF recovery failed;

[0424] RRC connection reestablishment failed;

[0425] RRC reconfiguration failed.

[0426] Optionally, the first indication information includes one or more of the following:

[0427] first information, used to indicate the first event;

[0428] a first target interface corresponding to the first event;

[0429] Business identification information;

[0430] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0431] 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.

[0432] Optionally, the first target interface or the second target interface includes one or more of the following:

[0433] Uu interface;

[0434] Direct communication interface.

[0435] Optionally, the target object includes one or more of the following:

[0436] Uu interface bearers and / or logical channels;

[0437] Direct communication interface bearers and / or logical channels.

[0438] Optionally, the first sending unit is further used to send the first indication information to the second terminal through the first interface if it is determined that the second terminal exists.

[0439] Optionally, the device may further include:

[0440] The first processing unit is configured to determine the second terminal according to one or more of the following information:

[0441] First configuration information sent by the network device;

[0442] Second configuration information sent by a high layer of the first terminal.

[0443] Optionally, the first configuration information or the second configuration information includes one or more of the following:

[0444] Business identification information;

[0445] identification information of the second terminal;

[0446] The direct communication interface target layer 2 L2 identifier associated with the service.

[0447] Optionally, the device may further include:

[0448] 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.

[0449] Optionally, the second indication information includes one or more of the following:

[0450] 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;

[0451] The identifier of the interface for successful RLF recovery, RRC connection reestablishment, or RRC reconfiguration;

[0452] The service identifier of the transmission to be restored;

[0453] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0454] 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.

[0455] Optionally, the first indication information and / or the second indication information is transmitted in one or more of the following ways:

[0456] Broadcast, multicast, unicast.

[0457] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0458] like Fig.12 As shown, the information indication device of the embodiment of the present application is applied to the second terminal, including:

[0459] The first receiving unit 1201 is used 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 at the first target interface and is used to instruct to suspend or release a target object at 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;

[0460] 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.

[0461] Optionally, the first event includes one or more of the following:

[0462] RLF;

[0463] RLF recovery failed;

[0464] RRC connection reestablishment failed;

[0465] RRC reconfiguration failed.

[0466] Optionally, the first indication information includes one or more of the following:

[0467] first information, used to indicate the first event;

[0468] a first target interface corresponding to the first event;

[0469] Business identification information;

[0470] second information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0471] 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.

[0472] Optionally, the first target interface or the second target interface includes one or more of the following:

[0473] Uu interface;

[0474] Direct communication interface.

[0475] Optionally, the target object includes one or more of the following:

[0476] Uu interface bearers and / or logical channels;

[0477] Direct communication interface bearers and / or logical channels.

[0478] Optionally, the first processing unit is further used to suspend or release the target object on the second target interface according to the second information and / or the third information.

[0479] Optionally, the device may further include:

[0480] The second receiving unit is configured to receive second indication information sent by the first terminal through the first interface.

[0481] Optionally, the second indication information includes one or more of the following:

[0482] 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;

[0483] The interface identifier of the interface on which RLF recovery, RRC connection reestablishment, or RRC reconfiguration is successfully performed;

[0484] The service identifier of the transmission to be restored;

[0485] fifth information, used to indicate information about an operation to be performed by the second terminal on the second target interface;

[0486] 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.

[0487] Optionally, the first processing unit is further used 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.

[0488] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0489] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0490] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0491] An embodiment of the present application further provides a communication device, including: a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned information indication method when executing the program.

[0492] The embodiment of the present application also provides a processor-readable storage medium, on which a program is stored. When the program is executed by the processor, each process of the above-mentioned information indication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. Among them, the readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor storage (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drive (SSD)), etc.

[0493] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0494] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0495] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An information indication method, characterized in that: Applied to the 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, characterized in that 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, characterized in that 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, characterized in that: 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, characterized in that: 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, characterized in that 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, characterized in that: The method further comprises: 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, characterized in that 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, characterized in that: The method further comprises: 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, characterized in that 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, characterized in that: 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, characterized in that: Applied to the second terminal, including: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that The method further comprises: Receive second indication information sent by the first terminal through the first interface.

19. The method according to claim 18, characterized in that 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, characterized in that The method further comprises: 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 indicating device, characterized in that: Applied to a first terminal, comprising: a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 indication information is sent to the second terminal through the first interface.

27. The device according to claim 21 or 26, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 indicating device, characterized in that: Applied to the second terminal, comprising: a memory, a transceiver, and a processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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, characterized in that 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 device according to claim 32, characterized in that The processor is further configured to read the computer program in the memory and perform the following operations: Receive second indication information sent by the first terminal through the first interface.

39. The device according to claim 38, characterized in that 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, characterized in that 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 indicating device, characterized in that: Applied to the 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 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.

42. An information indicating device, characterized in that: Applied to the second terminal, including: 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 at the first target interface and is used to instruct to suspend or release a target object at 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; 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.

43. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the method according to any one of claims 1 to 20.

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