Transmission processing method and device

Abstract

The invention provides a transmission processing method and device, and relates to the technical field of communication. The method comprises the following steps: a first network device acquires first information of a first terminal under the condition that the first terminal fails to be connected with a second network device and is connected to a third network device; the first network device performs network optimization according to the first information; wherein the first information comprises at least one of the following items: a reestablished connection type; the second terminal is a relay terminal, and the distance between the second terminal and the first terminal is smaller than a first threshold value; list information of a third terminal, wherein the third terminal is a candidate relay terminal determined by the first network device for the first terminal; the list of the third terminal encodes information. According to the scheme, the problem of how to realize network optimization is solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a transmission processing method and device. Background Art

[0002] In order to expand network coverage, communication technology has proposed a relay solution, in which the relay can be implemented as a terminal with relay function. For terminal-to-network relay communication (UE-to-Network Relay, U2N relay), the interface between the relay and the network uses the Uu interface, and the interface between the relayed terminal (referred to as remote UE) uses the direct communication interface.

[0003] (PC5 interface).

[0004] Among them, the remote UE may switch from direct to indirect (d2i), from indirect to indirect (i2i), or from indirect to direct (i2d). When the remote UE fails to switch or sends a radio link failure soon after the switch is successful, the remote UE can re-establish to other cells (direct path) or relay UE (indirect path).

[0005] However, existing network optimization solutions are applicable to single-hop networks but not to relay networks. Therefore, how to achieve network optimization has become a technical problem that needs to be solved urgently. Summary of the invention

[0006] The purpose of this application is to provide a transmission processing method and device that can solve the problem of how to achieve network optimization.

[0007] In order to achieve the above object, the embodiment of the present application provides a transmission processing method, including:

[0008] The first network device acquires first information of the first terminal when the first terminal fails to connect to the second network device and connects to the third network device;

[0009] The first network device performs network optimization according to the first information;

[0010] The first information includes at least one of the following:

[0011] The type of connection to be rebuilt;

[0012] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0013] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0014] The list encoding information of the third terminal.

[0015] Optionally, the first information includes second information, where the second information is the reconstructed connection type and / or a distribution density of the second terminal, and the first network device acquires the first information of the first terminal, including:

[0016] The first network device receives the second information sent by the second network device or the third network device.

[0017] Optionally, the second information is carried in a radio link failure RLF report.

[0018] Optionally, the first information includes third information, where the third information is list information of the third terminal and / or list coding information of the third terminal, and the first network device acquires the first information of the first terminal, including:

[0019] After receiving the fourth information sent by the second network device or the third network device, the first network device obtains the third information from the local storage information according to the fourth information, or sends a request to the second network device according to the fourth information, and receives the third information fed back by the second network device; or,

[0020] The first network device receives the third information sent by the second network device or the third network device.

[0021] Optionally, the fourth information includes at least one of the following:

[0022] Terminal identification information;

[0023] Time information.

[0024] Optionally, the fourth information is carried in the RLF report.

[0025] Optionally, the third information is carried in the RLF report.

[0026] Optionally, the method further comprises:

[0027] When the first terminal is switched to a relay terminal under the second network device, the first network device saves at least one of the list information and the list coding information of the third terminal.

[0028] In order to achieve the above object, the embodiment of the present application also provides a transmission processing method, including:

[0029] When the first terminal fails to connect to the second network device and connects to the third network device, the first terminal sends failure report information to the third network device;

[0030] The failure report information includes at least one of the following:

[0031] The type of connection to be rebuilt;

[0032] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0033] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0034] The list encoding information of the third terminal.

[0035] Optionally, the method further comprises:

[0036] The first terminal receives third information of the first terminal sent by the first network device;

[0037] The first terminal stores the third information;

[0038] The third information includes at least one of the following:

[0039] List information of the third terminal;

[0040] The list encoding information of the third terminal.

[0041] In order to achieve the above object, the embodiment of the present application also provides a transmission processing method, including:

[0042] The second network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0043] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0044] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0045] The fourth information includes at least one of the following: terminal identification information; time information.

[0046] Optionally, the method further comprises:

[0047] After receiving the third information sent by the first network device, the second network device saves the third information.

[0048] Optionally, the method further comprises:

[0049] The second network device receives a request message sent by the first network device, where the request message carries the fourth information;

[0050] The second network device sending the first terminal third information to the first network device includes:

[0051] The second network device feeds back the third information according to the request message.

[0052] Optionally, the method further comprises:

[0053] The second network device receives failure report information sent by the third network device;

[0054] The failure report information includes at least one of the following:

[0055] The type of connection to be rebuilt;

[0056] a distribution density of the second terminals;

[0057] List information of the third terminal;

[0058] The list encoding information of the third terminal.

[0059] In order to achieve the above object, the embodiment of the present application also provides a transmission processing method, including:

[0060] The third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0061] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0062] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0063] The fourth information includes at least one of the following: terminal identification information; time information.

[0064] Optionally, the method further comprises:

[0065] The third network device receives failure report information sent by the first terminal, where the failure report information includes at least one of the following:

[0066] The type of connection to be rebuilt;

[0067] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0068] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0069] The list encoding information of the third terminal.

[0070] In order to achieve the above-mentioned purpose, the embodiment of the present application further provides a transmission processing device, including: a memory, a transceiver, and a processor: the memory is used to store program instructions; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the program instructions in the memory and perform the following operations:

[0071] When the first terminal fails to connect to the second network device and is connected to the third network device, obtaining first information of the first terminal;

[0072] Performing network optimization according to the first information;

[0073] The first information includes at least one of the following:

[0074] The type of connection to be rebuilt;

[0075] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0076] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0077] The list encoding information of the third terminal.

[0078] In order to achieve the above object, the embodiment of the present application further provides a through link feedback device, including:

[0079] A first processing module, configured to obtain first information of the first terminal when the first terminal fails to connect to the second network device and connects to the third network device;

[0080] A second processing module, configured to perform network optimization according to the first information;

[0081] The first information includes at least one of the following:

[0082] The type of connection to be rebuilt;

[0083] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0084] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0085] The list encoding information of the third terminal.

[0086] In order to achieve the above-mentioned purpose, the embodiment of the present application further provides a transmission processing device, including: a memory, a transceiver, and a processor;

[0087] A memory for storing program instructions; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading program instructions in the memory;

[0088] The transceiver is also used to perform the following operations:

[0089] When the connection with the second network device fails and the device is connected to the third network device, sending failure report information to the third network device;

[0090] The failure report information includes at least one of the following:

[0091] The type of connection to be rebuilt;

[0092] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0093] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0094] The list encoding information of the third terminal.

[0095] In order to achieve the above object, the embodiment of the present application further provides a transmission processing device, including:

[0096] A first sending module, configured to send failure report information to the third network device when the connection with the second network device fails and the device is connected to the third network device;

[0097] The failure report information includes at least one of the following:

[0098] The type of connection to be rebuilt;

[0099] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0100] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0101] The list encoding information of the third terminal.

[0102] In order to achieve the above-mentioned purpose, the embodiment of the present application further provides a transmission processing device, including: a memory, a transceiver, and a processor;

[0103] A memory for storing program instructions; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading program instructions in the memory;

[0104] The transceiver is also used to perform the following operations:

[0105] When the first terminal fails to connect to the second network device and is connected to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device;

[0106] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0107] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0108] The fourth information includes at least one of the following: terminal identification information; time information.

[0109] In order to achieve the above object, the embodiment of the present application further provides a transmission processing device, including:

[0110] A second sending module, configured to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0111] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0112] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0113] The fourth information includes at least one of the following: terminal identification information; time information.

[0114] In order to achieve the above-mentioned purpose, the embodiment of the present application further provides a transmission processing device, including: a memory, a transceiver, and a processor;

[0115] A memory for storing program instructions; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading program instructions in the memory;

[0116] The transceiver is also used to perform the following operations:

[0117] When the first terminal fails to connect to the second network device and is connected to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device;

[0118] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0119] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0120] The fourth information includes at least one of the following: terminal identification information; time information.

[0121] In order to achieve the above object, the embodiment of the present application further provides a transmission processing device, including:

[0122] A third sending module, configured to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0123] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0124] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0125] The fourth information includes at least one of the following: terminal identification information; time information.

[0126] In order to achieve the above-mentioned purpose, an embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute the transmission processing method as described above.

[0127] The above technical solution of the present application has at least the following beneficial effects:

[0128] In the above-mentioned technical scheme of the embodiment of the present application, in the case where the first terminal fails to connect to the second network device and connects to the third network device, by obtaining the first information of the first terminal, that is, the reconstructed connection type, the distribution density of relay terminals whose distance from the first terminal is less than a first threshold, the list information of candidate relay terminals and one or more items of the list encoding information of the candidate relay terminals, the network can be further optimized according to the first information, and subsequently the target network device can be successfully connected to ensure the data transmission of the first terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0129] Figure 1 This is one of the flowcharts of the method of the embodiment of the present application;

[0130] Figure 2 This is one of the application schematic diagrams of the method of the embodiment of the present application;

[0131] Figure 3 This is the second application schematic diagram of the method of the embodiment of the present application;

[0132] Figure 4 This is the third application diagram of the method of the embodiment of the present application;

[0133] Figure 5 This is a second flow chart of the method of the embodiment of the present application;

[0134] Figure 6 This is a third flow chart of the method of the embodiment of the present application;

[0135] Figure 7 This is a fourth flow chart of the method of an embodiment of the present application;

[0136] Figure 8 This is one of the structural block diagrams of the device according to the embodiment of the present application;

[0137] Fig. 9This is one of the module schematic diagrams of the device according to the embodiment of the present application;

[0138] Fig.10 This is the second structural block diagram of the device according to the embodiment of the present application;

[0139] Fig.11 This is the second module schematic diagram of the device according to the embodiment of the present application;

[0140] Fig.12 This is the third structural block diagram of the device of the embodiment of the present application;

[0141] Fig.13 This is the third module schematic diagram of the device according to the embodiment of the present application;

[0142] Fig.14 This is the fourth structural block diagram of the device of the embodiment of the present application;

[0143] Fig.15 This is the fourth module schematic diagram of the device according to the embodiment of the present application. DETAILED DESCRIPTION

[0144] 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.

[0145] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0146] 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.

[0147] The following is a description of the contents involved in this application:

[0148] (1) Radio Link Failure (RLF) and Handover Failure (HOF)

[0149] Wireless link failure judgment conditions

[0150] A) T310 timer times out;

[0151] B) T312 timer times out;

[0152] C) Media Access Control (MAC) reports random access problems (including beam failure recovery failure and random access problems) under certain conditions;

[0153] D) Under certain conditions, RLC reports that the maximum number of retransmissions has been reached for a signaling radio bearer (SRB) or a data radio bearer (DRB);

[0154] E) Failure of continuous Listen Before Talk (LBT) under certain conditions;

[0155] F) For IAB-MT, BH RLF indication received from its parent node, etc.

[0156] Switching failure judgment conditions:

[0157] After receiving the handover command, the user equipment (UE) starts a timer T304. If T304 times out, the handover fails.

[0158] (2) The handover is successful but there are critical issues during the handover process (Successful Handover Report (SHR))

[0159] If T310 / T312 / T304 is opened for more than a threshold and does not time out during the handover process, the handover to the target cell is successful. It can be determined that there is a connection problem during the handover process, but the handover is successful. The connection problem and related information that occurred during this process are recorded.

[0160] (3) Mobility Robustness Optimisation (MRO)

[0161] MRO mainly solves the failure problem in the terminal mobility process and assists in network optimization. In the event of HOF or RLF, the terminal will measure the configured frequency points and record the measurement results. The terminal will also record relevant information such as random access, switching and re-establishment. After the handover fails, the terminal selects a cell, and then re-accesses the network through Radio Resource Control (RRC) connection re-establishment or RRC connection establishment, and notifies the network to retain information such as radio link failure or handover failure on the terminal side. The network side obtains information from the terminal when necessary for the network side to optimize the handover configuration, etc.

[0162] The RLF report is a report recorded on the terminal side, mainly covering two recording scenarios: switching failure and radio link failure. An RLF report can only represent the record of one scenario.

[0163] The RLF report contains the following:

[0164] -Measurement results of a serving cell on the terminal

[0165] -Neighboring cell measurement results after the terminal confirms handover failure or radio link failure

[0166] -Terminal location information

[0167] -Terminal failed cell identification information, such as CGI (Cell Global Identity) / PCI (Physical Cell Identity) + frequency

[0168] -Terminal reconstructs cell identification information

[0169] -UE reporting timer: the duration from the last time the terminal confirmed the receipt of the handover initiation message to the time the connection failed

[0170] -Reason for connection failure: handover failure or wireless link failure

[0171] -Cell Radio Network Temporary Identifier (C-RNTI) used when the terminal connection fails

[0172] -Radio link failure sub-reason, T310 timeout or random access problem or RLC layer reaches maximum retransmission or beam recovery failure (Beam Failure Recovery Failure, BFRF)

[0173] -The time it takes for the terminal to report the RLF report after confirming the connection failure

[0174] - Tracking Area Code (TAC) of the cell where the connection failed

[0175] -Bluetooth (BT) related record results

[0176] -Wireless Local Area Network (WLAN)

[0177] (4)Direct communication

[0178] Direct communication refers to the method in which adjacent terminals can transmit data over a short distance through a direct communication link (also called Sidelink or PC5). The wireless interface corresponding to the Sidelink link is called a direct communication interface (also called a Sidelink interface or PC5 interface).

[0179] (5) L2 relay

[0180] In order to expand network coverage, L2 relay can be considered. L2 relay itself can be a terminal with relay function. For UE-to-Network Relay, the interface between L2 relay and network uses Uu interface, and the interface between L2 relay and relayed UE (remote UE, also called remote UE) uses direct communication interface (also called Sidelink interface or PC5 interface).

[0181] The Remote UE reconstruction process is as follows:

[0182] - If there is only a suitable cell, the remote UE initiates reestablishment to the suitable cell;

[0183] - If there is only a suitable relay, the remote UE initiates reestablishment to the serving cell of the suitable relay;

[0184] - If there is both a suitable cell and a suitable relay, the remote UE initiates reestablishment to the suitable cell or to the serving cell of the suitable relay based on the implementation selection.

[0185] The embodiment of the present application provides a transmission processing method and device. The method and device are based on the same application concept. Since the method and 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.

[0186] like Figure 1 As shown, a transmission processing method provided in an embodiment of the present application includes:

[0187] Step 101: When a first terminal fails to connect to a second network device and is connected to a third network device, a first network device obtains first information of the first terminal;

[0188] Step 102: The first network device performs network optimization according to the first information; wherein the first information includes at least one of the following:

[0189] The type of connection to be rebuilt;

[0190] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0191] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0192] The list encoding information of the third terminal.

[0193] In this way, according to the above steps, the first network device can, in the case where the first terminal fails to connect to the second network device and connects to the third network device, obtain the first information of the first terminal, that is, the reconstructed connection type, the distribution density of relay terminals whose distance from the first terminal is less than a first threshold, the list information of candidate relay terminals and one or more items of list coding information of candidate relay terminals, so as to further optimize the network according to the first information, and subsequently be able to successfully connect to the target network device to ensure data transmission of the first terminal.

[0194] In this embodiment, the connection failure between the first terminal and the second network device refers to the failure of the handover from the first terminal to the second network device, or the failure of the wireless link within a short time after the successful handover to the second network device. After the connection failure between the first terminal and the second network device occurs, the first terminal can re-establish the connection to the third network device.

[0195] Optionally, in this embodiment, the first network device is a source network device, the second network device is a target network device switched by the first terminal, and the third network device is a network device to which the first terminal connects after the connection with the second network device fails, and can also be called a re-establishing network device. The network devices include but are not limited to base stations.

[0196] The first terminal performs relay communication with the source network device, and after the first terminal fails to connect with the second network device, the connection reestablished by the first terminal with the third network device may be a direct connection or an indirect connection. Therefore, in this embodiment, the reestablished connection type is used to indicate whether the connection between the first terminal and the third network device is a direct connection or an indirect connection.

[0197] In addition, in this embodiment, the distribution density of the second terminal, that is, the sparsity of the second terminal; the list information of the third terminal, that is, the candidate target relay terminal list (Candidate target relay UE list); the list encoding information of the third terminal, that is, the encoded Candidate target relay UE list. After the first network device determines the Candidate target relay UE list for the first terminal, the Candidate target relay UE list and / or the encoded Candidate target relay UE list can be stored locally. Of course, the first network device can send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the second network device, and can also send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the first terminal.

[0198] Optionally, the first information includes second information, where the second information is the reconstructed connection type and / or a distribution density of the second terminal, and the first network device acquires the first information of the first terminal, including:

[0199] The first network device receives the second information sent by the second network device or the third network device.

[0200] That is to say, the reconstructed connection type and / or the distribution density of the second terminals acquired by the first network device may be sent by the second network device or the third network device.

[0201] In this embodiment, after the first terminal is connected to the third network device, it will send failure report information to the third network device, and the failure report information includes one or more items of the reconstructed connection type, the distribution density of the second terminal, the list information of the third terminal, and the list encoding information of the third terminal. In this way, the third network device can send the second information to the first network device based on the failure report information; the third network device can also send the second information to the second network device based on the failure report information, and then the second network device sends it to the first network device.

[0202] For example, the first terminal carries the failure report information to the third network device through the RLF report, and the third network device sends a failure indication carrying the RLF report to the first network device, and the first network device can parse and obtain the second information. Of course, if the third network device sends a failure indication carrying the RLF report to the second network device, then the second network device sends a handover report carrying the RLF report to the first network device, or, after the second network device parses and obtains the second information, it sends a handover report carrying the second information to the first network device.

[0203] Optionally, in this embodiment, the second information is carried in a radio link failure RLF report. In this way, the first network device will receive the RLF report carrying the second information sent by the second network device or the third network device.

[0204] Optionally, in this embodiment, the failure report information also includes terminal identification information and / or time information. Correspondingly, the RLF report sent by the first terminal may also include terminal identification information and / or time information. The terminal identification information is the identification information of the first terminal, such as local ID, L2ID, C-RNTI, etc. The time information is the time from when the first terminal receives the RRC reconfiguration to when the RLF report is generated.

[0205] Optionally, in this embodiment, the first information includes third information, where the third information is list information of the third terminal and / or list coding information of the third terminal, and the first network device acquires the first information of the first terminal, including:

[0206] After receiving the fourth information sent by the second network device or the third network device, the first network device obtains the third information from the local storage information according to the fourth information, or sends a request to the second network device according to the fourth information, and receives the third information fed back by the second network device; or,

[0207] The first network device receives the third information sent by the second network device or the third network device.

[0208] Here, the fourth information is sent by the second network device or the third network device and is used to query the third information. If the third information is stored in the local storage information of the first network device, the first network device can obtain the third information from the local storage information by using the fourth information after receiving the fourth information; if the third information is stored in the second network device, the first network device can send a request to the second network device by using the fourth information after receiving the fourth information, and the request carries the fourth information, so that the second network device can obtain the third information from the local storage information by using the fourth information and feed it back to the first network device.

[0209] In addition, if the third information is stored in the second network device, the first network device can send the third information to the first network device without a request; if the third information is stored in the first terminal, and the first terminal sends failure report information to the third network device, the third network device can send the third information in the failure report information to the first network device.

[0210] Optionally, in this embodiment, the fourth information includes at least one of the following:

[0211] Terminal identification information;

[0212] Time information (timer).

[0213] The terminal identification information included in the fourth information is identification information of the first terminal, such as local ID, L2ID, C-RNTI, etc. The time information included in the fourth information is the time from when the first terminal receives the RRC reconfiguration to when the RLF report is generated.

[0214] In this embodiment, similar to the second information, the first terminal carries the failure report information to the third network device through the RLF report, and the third network device sends the failure indication carrying the RLF report to the first network device, and the first network device can parse and obtain the fourth information and / or the third information. Of course, if the third network device sends the failure indication carrying the RLFreport to the second network device, then the second network device sends the handover report carrying the RLFreport to the first network device, or, after the second network device parses and obtains the fourth information, it sends the handover report carrying the fourth information and / or the third information to the first network device.

[0215] If the third network device sends a failure indication carrying an RLF report to the first network device, the RLF report may include the second information, the third information, and the fourth information. If the third network device sends a failure indication carrying an RLFreport to the second network device, the RLF report includes the second information, the third information, and the fourth information. The second network device may send the second information and the third information to the first network device, or send the second information and the fourth information to the first network device, and the second network device sends the third information in response to the request carrying the fourth information.

[0216] Optionally, in this embodiment, the fourth information is carried in the RLF report. In this way, the first network device will receive the RLF report carrying the fourth information sent by the second network device or the third network device.

[0217] Optionally, in this embodiment, the third information is carried in the RLF report. In this way, the first network device will receive the RLF report carrying the third information sent by the second network device or the third network device.

[0218] Optionally, in this embodiment, the method further includes:

[0219] When the first terminal is switched to a relay terminal under the second network device, the first network device saves at least one of the list information and the list coding information of the third terminal.

[0220] That is to say, the first network device will locally store the Candidate target relay UE list and / or the encoded Candidate target relay UE list for subsequent use.

[0221] Optionally, in this embodiment, the first network device performs network optimization according to the first information, which may be implemented as follows:

[0222] The first information includes the Candidate target relay UE list and / or the encoded Candidate target relay UE list, as well as the reconstructed connection type. The first network device determines whether the relay UE reconstructed by the first terminal is in the Candidate target relay UE list (for example, the selected relay UE 1-10) based on the fact that the reconstructed connection type is a non-direct connection. If it is (the relay UE is reestablished as relay UE 2), the RLF report is sent to the second network device through the Xn interface to allow the second network device to optimize (because the second network device did not select relay UE 2 as the target relay UE, it is a problem of the second network device and should be optimized, such as selecting relay UE 2 in subsequent similar switching); if it is not (the relay UE is reestablished as relay UE 12), the first network device optimizes the selection of the Candidate target relay UE list by itself (the problem of the first network device selecting the candidate target relayUE list needs to be optimized, such as including relay UE 12 in the Candidate target relay UE list).

[0223] The first information includes a Candidate target relay UE list and / or an encoded Candidate target relay UE list, and a reconstructed connection type. The first network device optimizes the first terminal switching parameter based on that the reconstructed connection type is a direct connection.

[0224] The first information includes the distribution density of the second terminal, and the first network device optimizes the connection type of the switch based on the distribution density, that is, the first network device switches the first terminal to a direct connection with the second network device or an indirect connection with the second network device. For example, if the distribution density of the second terminal is less than a specific threshold, the first network device should not switch the first terminal to an indirect connection too much, which may cause a switching failure, so the first network device can optimize and try to switch to a direct connection when the distribution density of the second terminal is less than a specific threshold.

[0225] It should be noted that the first information may also include other parameters used for network optimization: Uu interface / PC5 interface measurement results, first network device identifier (such as a cell identifier), second network device identifier (such as a cell identifier), third network device identifier (such as a cell identifier), relay UE identifier corresponding to the third network device, etc.

[0226] The following describes the application of the embodiments of the present application in combination with specific scenarios:

[0227] Scenario 1: Figure 2 As shown, for the second network device (target base station (Target gNB)), the first terminal (Remote UE) has HOF / RLF and re-establishes the connection to the third network device (re-establish connection base station (Re-establish gNB)). The connection is a non-direct connection via the re-established relay UE (Re-establish relay UE), and the first network device (source base station (Source gNB)) saves the candidate target relay UE list.

[0228] Step 201: Source gNB decides to switch the remote UE to a relay UE under another base station and saves the candidate target relay UE list.

[0229] Step 202: Source gNB sends a handover request carrying the candidate target relay UE list selected by Source gNB.

[0230] Step 203: Target gNB replies with a handover confirmation, carrying an RRC reconfiguration message.

[0231] Step 204: Source gNB sends RRC reconfiguration to remote UE.

[0232] Step 205a: Target gNB determines that T304 has timed out and determines that the handover has failed.

[0233] Step 205b: The remote UE successfully accesses the Target gNB (such as the target relay), but soon fails to send the wireless link.

[0234] That is, after step 204, step 205a or step 205b may be executed.

[0235] Step 206: The remote UE re-establishes to the relay UE or cell under the Re-establish gNB and indicates to the Re-establish gNB that the remote UE has an RLF report.

[0236] Step 207: The remote UE reports an RLF report based on the request of Re-establish gNB.

[0237] The RLF report carries one or more of the following:

[0238] Remote UE identification information: local ID, L2ID, C-RNTI;

[0239] Time information (timer): the time from receiving RRC reconfiguration to generating RLF report;

[0240] The type of connection reestablished by the Remote UE: direct or indirect;

[0241] The distribution density of second terminals corresponding to the remote UE;

[0242] Other parameters used for network optimization: Uu interface / PC5 interface measurement results, re-established / failed / source / target cell identifiers, re-established relay UE identifiers, etc.

[0243] Step 208a: For HOF, the Re-establish gNB sends a failure indication carrying an RLF report to the Source gNB, and the Source gNB parses the RLF report.

[0244] Step 208b1: For RLF, the Re-establish gNB sends a failure indication carrying an RLF report to the Target gNB, and the Target gNB parses the RLF report.

[0245] Step 208b2: The Target gNB sends a handover report to the Source gNB. Optionally, the handover report carries the identification information of the remote UE.

[0246] That is, after step 207, step 208a or steps 208b1-208b2 may be executed.

[0247] Step 209: The Source gNB extracts the previously saved Candidate target relay UE list for the remote UE based on one or more of the remote UE identification information and time information.

[0248] Step 210: The Source gNB performs network optimization based on the connection type reestablished by the Remote UE, whether the relay is in the Candidate target relay UE list, the distribution density of the second terminal corresponding to the remote UE during switching, and other parameters used for network optimization in the RLF report.

[0249] Step 211: If the Source gNB determines that the Target gNB needs to be optimized, for example, the re-established relay is not in the Candidate target relay UE list, the Source gNB sends the RLF report to the Target gNB via Xn interface signaling, allowing the Target gNB to perform optimization, for example, the Target gNB optimizes the selection of the target relay UE.

[0250] In this scenario, for RLF, after the second network device receives the failure indication, if it is an RLF that occurs within a short time after the handover is successful, it parses the RLFreport after receiving the failure indication sent by the third network device, and sends a handover report to the first network device. Through the identification information of the remote UE carried in the handover report, and / or the remote UE identification information and / or timer carried in the RLF report in the handover report, the first network device extracts the previously saved Candidate target relay UElist for the remote UE.

[0251] In this scenario, for HOF, the first network device may parse the RLF report after receiving the failureindication sent by the third network device, and extract the previously saved Candidate target relay UE list for the remote UE according to the remote UE identification information and / or timer in the RLF report.

[0252] It should be understood that the sequence numbers of the steps in scenario 1 do not limit the order of execution. For example, step 211 is executed first, and then step 210, or they can be executed simultaneously.

[0253] Scenario 2: Figure 3As shown, for the second network device (Target gNB), the first terminal (Remote UE) has HOF / RLF and re-establishes the connection to the third network device (Re-establish gNB). The connection is a non-direct connection via the re-established relay UE (Re-establish relay UE). The Target gNB saves the candidate target relay UE list.

[0254] Step 301: Source gNB decides to switch the remote UE to a relay UE (target relay UE) under another base station.

[0255] Step 302 - Step 304: Same as Step 202 - Step 204 in Scenario 1.

[0256] Step 305a: The Target gNB determines that T304 has timed out and determines that the handover has failed. The Target gNB saves the candidate target relay UE list.

[0257] Step 305b: The remote UE successfully accesses the Target gNB (such as the target relay), but soon fails to send the wireless link. The Target gNB saves the candidate target relay UE list.

[0258] That is, after step 304, step 305a or step 305b may be executed.

[0259] Step 306-Step 307: Same as scenario 1.

[0260] Step 308a1: For HOF, the Re-establish gNB sends a failure indication carrying an RLFreport (carrying the remote UE identifier, which can also be understood as the remote UE identifier of the target cell to be switched) to the Source gNB, and the Source gNB parses the RLF report.

[0261] Step 308a2: Source gNB sends a request (e.g., Xn interface signaling) to Target gNB, carrying the remote UE identifier and / or timer of the target cell to request Target gNB to provide it with the candidate target relay UE list sent by Source gNB when the remote UE is ready to be handed over. Target gNB sends the previously saved candidate target relay UE list to Source gNB.

[0262] Step 308b1: For RLF, the Re-establish gNB sends a failure indication carrying an RLFreport to the Target gNB, and the Target gNB parses the RLF report. The Target gNB extracts the previously saved Candidate target relayUE list for the remote UE based on the remote UE identifier and / or timer in the RLF report.

[0263] Step 308b2: Target gNB sends a handover report to Source gNB, which carries Candidatetarget relay UE list.

[0264] That is, after step 307, steps 308a1-308a2 or steps 308b1-308b2 may be executed.

[0265] Step 309: The Source gNB performs network optimization based on the connection type reestablished by the Remote UE, whether the relay is in the Candidate target relay UE list, the distribution density of the second terminal corresponding to the remote UE during switching, and other parameters used for network optimization in the RLF report.

[0266] Step 310: If the Source gNB determines that the Target gNB needs to be optimized, for example, the re-established relay is not in the Candidate target relay UE list, the Source gNB sends the RLF report to the Target gNB via Xn interface signaling, allowing the Target gNB to perform optimization, for example, the Target gNB optimizes the selection of the target relay UE.

[0267] In this scenario, for RLF, the second network device can parse the RLF report after receiving the failure indication sent by the third network device, extract the previously saved Candidate target relay UE list for the remote UE according to the remote UE identifier and / or timer of the target side in the RLF report, and include the Candidate target relay UE list in the handover report and send it to the first network device.

[0268] In this scenario, for HOF, the first network device can parse the RLFreport after receiving the failure indication, and according to the remote UE identifier and / or timer in the RLF report, request the second network device through Xn interface signaling for the Candidate target relay UE list when switching the remote UE.

[0269] It should be understood that the sequence numbers of the steps in scenario 2 do not limit the order of execution. For example, step 310 is executed first and then step 309, or they can be executed simultaneously.

[0270] Scenario 3: Figure 4 As shown, for the second network device (Target gNB), the first terminal (Remote UE) has HOF / RLF and re-establishes the connection to the third network device (Re-establish gNB). The connection is a non-direct connection via the re-established relay UE (Re-establish relay UE). The remote UE reports the candidate target relay UE list / encoded candidate target relay UE list (mobility information) in the RLF report. The candidate target relay UE list / encoded candidate target relay UE list reported by the remote UE is sent to the remote UE by the first network device through RRC signaling.

[0271] Step 401 - Step 403: Same as Step 201 - Step 203 of Scenario 1.

[0272] Step 404: Source gNB sends RRC reconfiguration to the remote UE, carrying the Candidate target relay UE list and / or the encoded candidate target relay UE list.

[0273] Step 405 and step 406: are the same as step 205 and step 206 of scenario one.

[0274] Step 407: The remote UE reports an RLF report based on the request of Re-establish gNB.

[0275] The RLF report carries one or more of the following:

[0276] Remote UE identification information: local ID, L2ID, C-RNTI;

[0277] Candidate target relay UE list;

[0278] Encoded candidate target relay UE list;

[0279] The type of connection reestablished by the Remote UE: direct or indirect;

[0280] The distribution density of second terminals corresponding to the remote UE;

[0281] Other parameters used for network optimization: Uu interface / PC5 interface measurement results, re-established / failed / source / target cell identifiers, re-established relay UE identifiers, etc.

[0282] Step 408a: For HOF, the Re-establish gNB sends a failure indication carrying an RLF report to the Source gNB, and the Source gNB parses the RLF report.

[0283] Step 408b1: For RLF, the Re-establish gNB sends a failure indication carrying an RLF report to the Target gNB, and the Target gNB parses the RLF report.

[0284] Step 408b2: Target gNB sends a handover report to Source gNB.

[0285] That is, after step 407, step 408a or steps 408b1-408b2 may be executed.

[0286] Step 409410: Same as steps 309-310 of scenario 2.

[0287] It should be understood that the sequence numbers of the steps in scenario three do not limit the order of execution. For example, step 410 is executed first and then step 409, or they can be executed simultaneously.

[0288] In summary, the method of the embodiment of the present application can obtain the first information and further perform network optimization to ensure data transmission of the remote UE when HOF and RLF occur in the remote UE.

[0289] like Figure 5 As shown, a transmission processing method in an embodiment of the present application includes:

[0290] Step 501: When the first terminal fails to connect to the second network device and connects to the third network device, the first terminal sends a failure report to the third network device.

[0291] The failure report information includes at least one of the following:

[0292] The type of connection to be rebuilt;

[0293] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0294] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0295] The list encoding information of the third terminal.

[0296] In this way, the third network device can receive the failure report information sent by the first terminal. Since the failure report information includes the above content, the third network device sends at least one of the second information, third information and fourth information of the first terminal to the first network device or the second network device, so that the first network device obtains the first information and then performs network optimization.

[0297] In this embodiment, the connection failure between the first terminal and the second network device refers to the failure of the handover from the first terminal to the second network device, or the failure of the wireless link within a short time after the successful handover to the second network device. After the connection failure between the first terminal and the second network device occurs, the first terminal can re-establish the connection to the third network device.

[0298] Optionally, in this embodiment, the first network device is a source network device, the second network device is a target network device switched by the first terminal, and the third network device is a network device to which the first terminal connects after the connection with the second network device fails, and can also be called a re-establishing network device. The network devices include but are not limited to base stations.

[0299] In addition, in this embodiment, the distribution density of the second terminal, that is, the sparsity of the second terminal; the list information of the third terminal, that is, the candidate target relay terminal list (Candidate target relay UE list); the list encoding information of the third terminal, that is, the encoded Candidate target relay UE list. After the first network device determines the Candidate target relay UE list for the first terminal, the Candidate target relay UE list and / or the encoded Candidate target relay UE list can be stored locally. Of course, the first network device can send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the second network device, and can also send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the first terminal.

[0300] Optionally, the method further comprises:

[0301] The first terminal receives third information of the first terminal sent by the first network device;

[0302] The first terminal stores the third information;

[0303] The third information includes at least one of the following:

[0304] List information of the third terminal;

[0305] The list encoding information of the third terminal.

[0306] Here, the first network device sends the third information through RRC.

[0307] It should be noted that this method is implemented in cooperation with the method executed by the above-mentioned first network device, and the implementation method of the above-mentioned method embodiment is applicable to this method and can also achieve the same technical effect.

[0308] like Figure 6 As shown, a transmission processing method in an embodiment of the present application includes:

[0309] Step 601: When the first terminal fails to connect to the second network device and is connected to a third network device, the second network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device;

[0310] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0311] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0312] The fourth information includes at least one of the following: terminal identification information; time information.

[0313] In this way, the second network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device, so that the first network device obtains the first information and then performs network optimization.

[0314] In this embodiment, the connection failure between the first terminal and the second network device refers to the failure of the handover from the first terminal to the second network device, or the failure of the wireless link within a short time after the successful handover to the second network device. After the connection failure between the first terminal and the second network device occurs, the first terminal can re-establish the connection to the third network device.

[0315] Optionally, in this embodiment, the first network device is a source network device, the second network device is a target network device switched by the first terminal, and the third network device is a network device to which the first terminal connects after the connection with the second network device fails, and can also be called a re-establishing network device. The network devices include but are not limited to base stations.

[0316] In addition, in this embodiment, the distribution density of the second terminal, that is, the sparsity of the second terminal; the list information of the third terminal, that is, the candidate target relay terminal list (Candidate target relay UE list); the list encoding information of the third terminal, that is, the encoded Candidate target relay UE list. After the first network device determines the Candidate target relay UE list for the first terminal, the Candidate target relay UE list and / or the encoded Candidate target relay UE list can be stored locally. Of course, the first network device can send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the second network device, and can also send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the first terminal.

[0317] Optionally, the method further comprises:

[0318] After receiving the third information sent by the first network device, the second network device saves the third information.

[0319] Optionally, the method further comprises:

[0320] The second network device receives a request message sent by the first network device, where the request message carries the fourth information;

[0321] The second network device sending the first terminal third information to the first network device includes:

[0322] The second network device feeds back the third information according to the request message.

[0323] Optionally, the method further comprises:

[0324] The second network device receives failure report information sent by the third network device;

[0325] The failure report information includes at least one of the following:

[0326] The type of connection to be rebuilt;

[0327] a distribution density of the second terminals;

[0328] List information of the third terminal;

[0329] The list encoding information of the third terminal.

[0330] It should be noted that this method is implemented in cooperation with the method executed by the above-mentioned first network device, and the implementation method of the above-mentioned method embodiment is applicable to this method and can also achieve the same technical effect.

[0331] like Figure 7 As shown, a transmission processing method in an embodiment of the present application includes:

[0332] Step 701: When the first terminal fails to connect to the second network device and is connected to the third network device, the third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device;

[0333] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0334] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0335] The fourth information includes at least one of the following: terminal identification information; time information.

[0336] In this way, the third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device, so that the first network device obtains the first information and then performs network optimization.

[0337] In this embodiment, the connection failure between the first terminal and the second network device refers to the failure of the handover from the first terminal to the second network device, or the failure of the wireless link within a short time after the successful handover to the second network device. After the connection failure between the first terminal and the second network device occurs, the first terminal can re-establish the connection to the third network device.

[0338] Optionally, in this embodiment, the first network device is a source network device, the second network device is a target network device switched by the first terminal, and the third network device is a network device to which the first terminal connects after the connection with the second network device fails, and can also be called a re-establishing network device. The network devices include but are not limited to base stations.

[0339] In addition, in this embodiment, the distribution density of the second terminal, that is, the sparsity of the second terminal; the list information of the third terminal, that is, the candidate target relay terminal list (Candidate target relay UE list); the list encoding information of the third terminal, that is, the encoded Candidate target relay UE list. After the first network device determines the Candidate target relay UE list for the first terminal, the Candidate target relay UE list and / or the encoded Candidate target relay UE list can be stored locally. Of course, the first network device can send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the second network device, and can also send the Candidate target relay UE list and / or the encoded Candidate target relay UE list to the first terminal.

[0340] Optionally, the method further comprises:

[0341] The third network device receives failure report information sent by the first terminal, where the failure report information includes at least one of the following:

[0342] The type of connection to be rebuilt;

[0343] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0344] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0345] The list encoding information of the third terminal.

[0346] It should be noted that this method is implemented in cooperation with the method executed by the above-mentioned first network device, and the implementation method of the above-mentioned method embodiment is applicable to this method and can also achieve the same technical effect.

[0347] like Figure 8 As shown, the embodiment of the present application further provides a transmission processing device, including: a memory 820, a transceiver 810, and a processor 800: the memory 820 is used to store program instructions; the transceiver 810 is used to send and receive data under the control of the processor 800; the processor 800 is used to read the program instructions in the memory 820 and perform the following operations:

[0348] When the first terminal fails to connect to the second network device and connects to the third network device, obtaining first information of the first terminal; and performing network optimization according to the first information;

[0349] Among them, the first information includes at least one of the following: the reconstructed connection type; the distribution density of the second terminal, the second terminal is a relay terminal whose distance from the first terminal is less than a first threshold; the list information of the third terminal, the third terminal is a candidate relay terminal determined by the first network device for the first terminal; the list coding information of the third terminal.

[0350] Among them, Figure 8 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 800 and various circuits of memory represented by memory 820 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 810 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, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 800 when performing operations.

[0351] The processor 800 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.

[0352] Optionally, the first information includes second information, where the second information is the reestablished connection type and / or a distribution density of the second terminal, and the transceiver is further used to:

[0353] Receive the second information sent by the second network device or the third network device.

[0354] Optionally, the second information is carried in a radio link failure RLF report.

[0355] Optionally, the first information includes third information, where the third information is list information of the third terminal and / or list coding information of the third terminal, and the processor is further configured to:

[0356] After receiving the fourth information sent by the second network device or the third network device, obtaining the third information from the local storage information according to the fourth information, or sending a request to the second network device according to the fourth information, and receiving the third information fed back by the second network device;

[0357] The transceiver is further used for receiving the third information sent by the second network device or the third network device.

[0358] Optionally, the fourth information includes at least one of the following:

[0359] Terminal identification information;

[0360] Time information.

[0361] Optionally, the fourth information is carried in the RLF report.

[0362] Optionally, the third information is carried in the RLF report.

[0363] Optionally, the processor is further configured to:

[0364] When the first terminal is switched to a relay terminal under the second network device, the first network device saves at least one of the list information and the list coding information of the third terminal.

[0365] 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.

[0366] like Fig. 9 As shown, the present application also provides a transmission processing device, including:

[0367] A first processing module 910 is used to obtain first information of the first terminal when the first terminal fails to connect to the second network device and connects to the third network device;

[0368] A second processing module 920, configured to perform network optimization according to the first information;

[0369] The first information includes at least one of the following:

[0370] The type of connection to be rebuilt;

[0371] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0372] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0373] The list encoding information of the third terminal.

[0374] The apparatus of the embodiment of the present application can, in response to a situation in which the first terminal fails to connect to the second network device and connects to the third network device, obtain first information of the first terminal, that is, one or more items of the reconstructed connection type, the distribution density of relay terminals whose distance from the first terminal is less than a first threshold, the list information of candidate relay terminals, and the list encoding information of the candidate relay terminals, thereby further optimizing the network based on the first information, and subsequently being able to successfully connect to the target network device to ensure data transmission of the first terminal.

[0375] Optionally, the first information includes second information, where the second information is the reestablished connection type and / or a distribution density of the second terminal, and the first processing module is further configured to:

[0376] Receive the second information sent by the second network device or the third network device.

[0377] Optionally, the second information is carried in a radio link failure RLF report.

[0378] Optionally, the first information includes third information, where the third information is list information of the third terminal and / or list coding information of the third terminal, and the first processing module is further used to:

[0379] After receiving the fourth information sent by the second network device or the third network device, obtaining the third information from the local storage information according to the fourth information, or sending a request to the second network device according to the fourth information, and receiving the third information fed back by the second network device; or,

[0380] The third information sent by the second network device or the third network device is received.

[0381] Optionally, the fourth information includes at least one of the following:

[0382] Terminal identification information;

[0383] Time information.

[0384] Optionally, the fourth information is carried in the RLF report.

[0385] Optionally, the third information is carried in the RLF report.

[0386] Optionally, the device further comprises:

[0387] The third processing module is configured to save at least one of the list information and the list coding information of the third terminal when the first terminal is switched to the relay terminal under the second network device.

[0388] 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.

[0389] In some embodiments of the present application, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute steps of the transmission processing method executed by the first network device.

[0390] When the program instructions are executed by the processor, all implementation methods in the method embodiment of the first network device side can be implemented. To avoid repetition, they are not repeated here.

[0391] like Fig.10 As shown, the present application also provides a transmission processing device, including: a memory 1020, a transceiver 1010, and a processor 1000: the memory 1020 is used to store program instructions; the transceiver 1010 is used to send and receive data under the control of the processor 1000; the processor 1000 is used to read the program instructions in the memory 1020, and the transceiver 1010 is used to perform the following operations:

[0392] When the connection with the second network device fails and the device is connected to the third network device, sending failure report information to the third network device;

[0393] The failure report information includes at least one of the following:

[0394] The type of connection to be rebuilt;

[0395] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0396] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0397] The list encoding information of the third terminal.

[0398] Among them, Fig.10In 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, including wireless channels, wired channels, optical cables, and other transmission media. 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.

[0399] 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.

[0400] Optionally, the processor 1000 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor 1000 may also adopt a multi-core architecture.

[0401] The processor 1000 is used to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the program instructions stored in the memory. The processor 1000 and the memory 1020 can also be arranged physically separately.

[0402] Optionally, the transceiver is further used to: receive third information of the first terminal sent by the first network device;

[0403] The processor is further configured to store the third information;

[0404] The third information includes at least one of the following:

[0405] List information of the third terminal;

[0406] The list encoding information of the third terminal.

[0407] The apparatus of the embodiment of the present application enables the third network device to receive the failure report information sent by the first terminal by sending the failure report information. Since the failure report information includes the above-mentioned content, the third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device, and then the first network device obtains the first information and performs network optimization.

[0408] 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.

[0409] like Fig.11 As shown, the present application also provides a transmission processing device, including:

[0410] The first sending module 1110 is used to send failure report information to the third network device when the connection with the second network device fails and the device is connected to the third network device;

[0411] The failure report information includes at least one of the following:

[0412] The type of connection to be rebuilt;

[0413] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0414] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0415] The list encoding information of the third terminal.

[0416] Optionally, the device further comprises:

[0417] A third information sending module, used for receiving third information of the first terminal sent by the first network device;

[0418] The first terminal stores the third information;

[0419] The third information includes at least one of the following:

[0420] List information of the third terminal;

[0421] The list encoding information of the third terminal.

[0422] The apparatus of the embodiment of the present application enables the third network device to receive the failure report information sent by the first terminal by sending the failure report information. Since the failure report information includes the above-mentioned content, the third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device, and then the first network device obtains the first information and performs network optimization.

[0423] 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.

[0424] In some embodiments of the present application, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute the steps performed by the first terminal.

[0425] When the program instructions are executed by the processor, all implementation methods in the above-mentioned method embodiment of the first terminal side can be implemented. To avoid repetition, they will not be repeated here.

[0426] like Fig.12 As shown, an embodiment of the present application further provides a transmission processing device, including: a memory 1220, a transceiver 1210, and a processor 1200: the memory 1220 is used to store program instructions; the transceiver 1210 is used to send and receive data under the control of the processor 1200; the processor 1200 is used to read the program instructions in the memory 1220;

[0427] The transceiver is also used to perform the following operations:

[0428] When the first terminal fails to connect to the second network device and is connected to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device;

[0429] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0430] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0431] The fourth information includes at least one of the following: terminal identification information; time information.

[0432] Among them, Fig.12 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1200 and various circuits of memory represented by memory 1220 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 1210 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, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 may store data used by the processor 1200 when performing operations.

[0433] The processor 1200 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.

[0434] Optionally, the processor is further configured to:

[0435] After receiving the third information sent by the first network device, the third information is saved.

[0436] Optionally, the transceiver is further used for:

[0437] receiving a request message sent by the first network device, where the request message carries the fourth information;

[0438] The third information is fed back according to the request message.

[0439] Optionally, the transceiver is further used for:

[0440] receiving failure report information sent by the third network device;

[0441] The failure report information includes at least one of the following:

[0442] The type of connection to be rebuilt;

[0443] a distribution density of the second terminals;

[0444] List information of the third terminal;

[0445] The list encoding information of the third terminal.

[0446] The apparatus of the embodiment of the present application sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device, so that the first network device obtains the first information and then performs network optimization.

[0447] 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.

[0448] like Fig.13 As shown, the present application also provides a transmission processing device, including:

[0449] The second sending module 1310 is used to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0450] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0451] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0452] The fourth information includes at least one of the following: terminal identification information; time information.

[0453] Optionally, the device further comprises:

[0454] The fourth processing module is used to save the third information after receiving the third information sent by the first network device.

[0455] Optionally, the device further comprises:

[0456] A request module, configured to receive a request message sent by the first network device, wherein the request message carries the fourth information;

[0457] The second sending module is also used for:

[0458] The third information is fed back according to the request message.

[0459] Optionally, the device further comprises:

[0460] A first receiving module, used for receiving failure report information sent by a third network device;

[0461] The failure report information includes at least one of the following:

[0462] The type of connection to be rebuilt;

[0463] a distribution density of the second terminals;

[0464] List information of the third terminal;

[0465] The list encoding information of the third terminal.

[0466] The apparatus of the embodiment of the present application sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device, so that the first network device obtains the first information and then performs network optimization.

[0467] 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.

[0468] In some embodiments of the present application, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute the steps performed by the first terminal.

[0469] When the program instructions are executed by the processor, all implementation methods in the method embodiment of the second network device side can be implemented. To avoid repetition, they will not be repeated here.

[0470] like Fig.14 As shown, a transmission processing device according to an embodiment of the present application includes: a memory 1420, a transceiver 1410, and a processor 1400: the memory 1420 is used to store program instructions; the transceiver 1410 is used to send and receive data under the control of the processor 1400; the processor 1400 is used to read the program instructions in the memory 1420;

[0471] The transceiver is also used to perform the following operations:

[0472] When the first terminal fails to connect to the second network device and is connected to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device;

[0473] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0474] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0475] The fourth information includes at least one of the following: terminal identification information; time information.

[0476] Among them, Fig.14 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1400 and various circuits of memory represented by memory 1420 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 1410 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and other transmission media. The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 when performing operations.

[0477] The processor 1400 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0478] Optionally, the transceiver is further used for:

[0479] The third network device receives failure report information sent by the first terminal, where the failure report information includes at least one of the following:

[0480] The type of connection to be rebuilt;

[0481] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0482] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0483] The list encoding information of the third terminal.

[0484] The apparatus of the embodiment of the present application sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device, so that the first network device obtains the first information and then performs network optimization.

[0485] 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.

[0486] like Fig.15 As shown, the present application also provides a transmission processing device, including:

[0487] The third sending module 1510 is used to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device when the first terminal fails to connect to the second network device and connects to the third network device;

[0488] The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold;

[0489] The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal;

[0490] The fourth information includes at least one of the following: terminal identification information; time information.

[0491] Optionally, the device further comprises:

[0492] The second receiving module is configured to receive failure report information sent by the first terminal, where the failure report information includes at least one of the following:

[0493] The type of connection to be rebuilt;

[0494] a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold;

[0495] list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal;

[0496] The list encoding information of the third terminal.

[0497] The apparatus of the embodiment of the present application sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device, so that the first network device obtains the first information and then performs network optimization.

[0498] 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.

[0499] In some embodiments of the present application, a processor-readable storage medium is further provided, wherein the processor-readable storage medium stores program instructions, and the program instructions are used to enable the processor to execute the steps performed by the first terminal.

[0500] When the program instructions are executed by the processor, all implementation methods in the method embodiment of the third network device side can be implemented. To avoid repetition, they will not be repeated here.

[0501] The technical solution provided in the embodiment of the present application can be applicable to a variety of systems, especially 5G systems. For example, applicable systems can be global system of mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet radio service (General Packet Radio Service, GPRS) system, long-term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD) system, advanced long-term evolution (Long Term Evolution Advanced, LTE-A) system, universal mobile system (Universal Mobile Telecommunication System, UMTS), global interconnection microwave access (Worldwide interoperability for Microwave Access, WiMAX) system, 5G new air interface (New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system may also include core network parts, such as the Evolved Packet System (EPS), 5G System (5GS), etc.

[0502] 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.

[0503] 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.

[0504] 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.

[0505] 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.

[0506] 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.

[0507] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0508] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0509] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0510] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0511] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A transmission processing method, characterized in that: include: The first network device acquires first information of the first terminal when the first terminal fails to connect to the second network device and connects to the third network device; The first network device performs network optimization according to the first information; The first information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

2. The method according to claim 1, characterized in that The first information includes second information, where the second information is the reconstructed connection type and / or the distribution density of the second terminal, and the first network device acquires the first information of the first terminal, including: The first network device receives the second information sent by the second network device or the third network device.

3. The method according to claim 2, characterized in that The second information is carried in a radio link failure RLF report.

4. The method according to claim 1, characterized in that: The first information includes third information, where the third information is list information of the third terminal and / or list coding information of the third terminal, and the first network device acquires the first information of the first terminal, including: After receiving the fourth information sent by the second network device or the third network device, the first network device obtains the third information from the local storage information according to the fourth information, or sends a request to the second network device according to the fourth information, and receives the third information fed back by the second network device; or The first network device receives the third information sent by the second network device or the third network device.

5. The method according to claim 4, characterized in that The fourth information includes at least one of the following: Terminal identification information; Time information.

6. The method according to claim 4 or 5, characterized in that: The fourth information is carried in the RLF report.

7. The method according to claim 4, characterized in that The third information is carried in the RLF report.

8. The method according to claim 1, characterized in that The method further comprises: When the first terminal is switched to a relay terminal under the second network device, the first network device saves at least one of the list information and the list coding information of the third terminal.

9. A transmission processing method, characterized in that: include: When the first terminal fails to connect to the second network device and connects to the third network device, the first terminal sends failure report information to the third network device; The failure report information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; List information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

10. The method according to claim 9, characterized in that The method further comprises: The first terminal receives third information of the first terminal sent by the first network device; The first terminal stores the third information; The third information includes at least one of the following: List information of the third terminal; The list encoding information of the third terminal.

11. A transmission processing method, characterized in that: include: When the first terminal fails to connect to the second network device and is connected to the third network device, the second network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

12. The method according to claim 11, characterized in that The method further comprises: After receiving the third information sent by the first network device, the second network device saves the third information.

13. The method according to claim 11, characterized in that The method further comprises: The second network device receives a request message sent by the first network device, where the request message carries the fourth information; The second network device sending the first terminal third information to the first network device includes: The second network device feeds back the third information according to the request message.

14. The method according to claim 11, characterized in that The method further comprises: The second network device receives failure report information sent by the third network device; The failure report information includes at least one of the following: The type of connection to be rebuilt; a distribution density of the second terminals; List information of the third terminal; The list encoding information of the third terminal.

15. A transmission processing method, characterized in that: include: The third network device sends at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device when the first terminal fails to connect to the second network device and connects to the third network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

16. The method according to claim 15, characterized in that The method further comprises: The third network device receives failure report information sent by the first terminal, where the failure report information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; list information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

17. A transmission processing device, characterized in that: include: Memory, transceiver, processor; A memory for storing program instructions; a transceiver, for transmitting and receiving data under the control of the processor; A processor is configured to read the program instructions in the memory and perform the following operations: When the first terminal fails to connect to the second network device and is connected to the third network device, obtaining first information of the first terminal; Performing network optimization according to the first information; The first information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; List information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

18. A transmission processing device, characterized in that: include: Memory, transceiver, processor; A memory for storing program instructions; a transceiver, for transmitting and receiving data under the control of the processor; A processor, configured to read program instructions from the memory; The transceiver is also used to perform the following operations: When the connection with the second network device fails and the device is connected to the third network device, sending failure report information to the third network device; The failure report information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; List information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

19. A transmission processing device, characterized in that: include: Memory, transceiver, processor; A memory for storing program instructions; a transceiver, for transmitting and receiving data under the control of the processor; A processor, configured to read program instructions from the memory; The transceiver is also used to perform the following operations: When the first terminal fails to connect to the second network device and connects to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

20. A transmission processing device, characterized in that: include: Memory, transceiver, processor; A memory for storing program instructions; a transceiver, for transmitting and receiving data under the control of the processor; A processor, configured to read program instructions from the memory; The transceiver is also used to perform the following operations: When the first terminal fails to connect to the second network device and connects to the third network device, sending at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

21. A transmission processing device, characterized in that: include: A first processing module, configured to obtain first information of the first terminal when the first terminal fails to connect to the second network device and connects to the third network device; A second processing module, configured to perform network optimization according to the first information; The first information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; List information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

22. A transmission processing device, characterized in that: include: A first sending module, configured to send failure report information to the third network device when the connection with the second network device fails and the device is connected to the third network device; The failure report information includes at least one of the following: The type of connection to be rebuilt; a distribution density of second terminals, where the second terminals are relay terminals whose distance from the first terminal is less than a first threshold; List information of a third terminal, where the third terminal is a candidate relay terminal determined by the first network device for the first terminal; The list encoding information of the third terminal.

23. A transmission processing device, characterized in that: include: A second sending module, configured to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device when the first terminal fails to connect to the second network device and connects to the third network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

24. A transmission processing device, characterized in that: include: A third sending module, configured to send at least one of the second information, the third information and the fourth information of the first terminal to the first network device or the second network device when the first terminal fails to connect to the second network device and connects to the third network device; The second information includes at least one of the following: the type of reestablished connection; the distribution density of the second terminal, the second terminal being a relay terminal whose distance from the first terminal is less than a first threshold; The third information includes at least one of the following: list information of a third terminal, the third terminal being a candidate relay terminal determined by the first network device for the first terminal; list coding information of the third terminal; The fourth information includes at least one of the following: terminal identification information; time information.

25. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to cause the processor to execute the transmission processing method described in any one of claims 1 to 8, or the transmission processing method described in claim 9 or 10, or the transmission processing method described in any one of claims 11 to 14, or the transmission processing method described in claim 15 or 16.

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