Transmission method, relay device, base station, storage medium and computer program product

Abstract

Disclosed in an embodiment of the present application are a transmission method, a relay device, a base station, a storage medium and a computer program product, the method applied to the relay device comprising: sending first information to the base station when a beam failure or a wireless link failure occurs in a connection with a first node; wherein the first information is used for indicating that beam failure or wireless link failure occurs in the connection.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a transmission method, relay device, base station, storage medium, and computer program product. Background Technology

[0002] Relay devices, such as Network Controlled Repeater (NCR), such as Figure 1 As shown, only the control link and the forwarding link are supported to operate on the same frequency. The NCR mobile terminal device (NCR-Mobile Termination, NCR-MT) and the NCR forwarding function share the same radio frequency module, that is, the control link and the forwarding link share the same radio frequency.

[0003] Currently, if the NCR control link or NCR-MT is undergoing link recovery, the NCR forwarding function will not transmit or receive until the link recovery is complete. However, this is not applicable in scenarios where low-frequency base stations control high-frequency NCRs. For example... Figure 2 As shown, since the control link and the forwarding link do not operate on the same frequency, the link recovery process of the control link will not affect the forwarding function of NCR. This is because the forwarding link operates on one frequency while the control link operates on another. The quality of the forwarding link cannot be reflected through the control link. Furthermore, the beam recovery process of the control link of NCR alone cannot solve the transmission problem of the NCR forwarding function. Based on this, the robustness of the relay device in forwarding is poor. Summary of the Invention

[0004] This application provides a transmission method, relay device, base station, storage medium, and computer program product. By introducing information about beam failure or wireless link failure in relay forwarding scenarios, node reselection is triggered, thereby improving the robustness of relay device forwarding.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] This application provides a transmission method applied to a relay device, the method comprising:

[0007] In the event of beam failure or wireless link failure in the connection with the first node, send the first information to the base station;

[0008] The first information is used to indicate that the connection has experienced beam failure or wireless link failure.

[0009] In the above method, sending the first information to the base station includes:

[0010] The first information is sent to the base station via the control link between the base station and the base station.

[0011] The above method also includes:

[0012] If the beam of the first node does not meet the constraints, it is determined that the connection has experienced beam failure or wireless link failure.

[0013] In the above method, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0014] In the above method, the node information of the candidate node includes one or more of the following:

[0015] The node identifier and / or configuration identifier of the candidate node;

[0016] The frequency information of the candidate nodes;

[0017] The cell information of the candidate nodes;

[0018] Reference signal information.

[0019] The above method also includes:

[0020] Receive the measurement configuration of the candidate node sent by the base station;

[0021] The candidate node is measured based on the measurement configuration, and the measurement results of the candidate node are sent to the base station.

[0022] In the above method, the measurement configuration includes the node identifier of the candidate node and the measurement information of the reference signal;

[0023] The measurement results of the candidate nodes include at least one of the following:

[0024] The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

[0025] The above method also includes:

[0026] Receive second information sent by the base station; wherein the second information is used to indicate the second node;

[0027] Based on the second information, a random access is initiated to the second node.

[0028] In the above method, the second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

[0029] In the above method, the second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

[0030] In the above method, after initiating random access to the second node based on the second information, the method further includes:

[0031] Send third information to the base station;

[0032] The third piece of information is used to indicate whether the relay device has successfully connected to the second node or whether the relay device has failed to connect to the second node.

[0033] This application provides a transmission method applied to a base station, the method further comprising:

[0034] Receive the first message sent by the relay device;

[0035] The first information is used to indicate that the connection between the relay device and the first node has failed due to beam failure or wireless link failure.

[0036] In the above method, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0037] In the above method, the node information of the candidate node includes one or more of the following:

[0038] The node identifier and / or configuration identifier of the candidate node;

[0039] The frequency information of the candidate nodes;

[0040] The cell information of the candidate nodes;

[0041] Reference signal information.

[0042] The above method also includes:

[0043] Based on the first information and / or the measurement results of the candidate nodes sent by the relay device, a second node is determined;

[0044] Send a second message to the relay device; wherein the second message is used to instruct the second node to initiate random access to the second node.

[0045] In the above method, the second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

[0046] In the above method, the second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

[0047] The above method also includes:

[0048] The measurement configuration of the candidate node is sent to the relay device so that the relay device can measure the candidate node;

[0049] Receive the measurement results of the candidate node sent by the relay device.

[0050] In the above method, the measurement configuration includes the identification information of the candidate node and the measurement information of the reference signal;

[0051] The measurement results of the candidate nodes include at least one of the following:

[0052] The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

[0053] In the above method, after sending the second information to the relay device, the method further includes:

[0054] Receive the third information sent by the relay device;

[0055] The third piece of information is used to indicate whether the relay device has successfully connected to the second node or whether the relay device has failed to connect to the second node.

[0056] In the above method, after receiving the third information sent by the relay device, the method further includes:

[0057] If the third information indicates that the relay device has successfully connected with the second node, the relay device is forwarded via the control link between the relay device and the second node.

[0058] If the third information indicates that the relay device has failed to connect with the second node, the relay device is instructed or configured to re-initiate node access.

[0059] This application provides a relay device, including: a first processor, a first memory, and a first communication bus;

[0060] The first communication bus is used to establish a communication connection between the first processor and the first memory;

[0061] The first processor is configured to execute one or more computer programs stored in the first memory to implement a transmission method applied to a relay device.

[0062] This application provides a base station, including: a second processor, a second memory, and a second communication bus;

[0063] The second communication bus is used to establish a communication connection between the second processor and the second memory;

[0064] The second processor is configured to execute one or more computer programs stored in the second memory to implement a transmission method applied to a base station.

[0065] This application provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements steps in a transmission method applied to a relay device, or steps in a transmission method applied to a base station.

[0066] This application provides a computer program product, including a computer program that, when executed by a processor, implements steps in a transmission method applied to a relay device, or steps in a transmission method applied to a base station.

[0067] This application provides a transmission method, a relay device, a base station, a storage medium, and a computer program product. The method applied to the relay device includes: sending first information to the base station in the event of a beam failure or wireless link failure in the connection with a first node; wherein the first information indicates that a beam failure or wireless link failure has occurred. The technical solution provided by this application improves the robustness of the relay device's forwarding by introducing information about beam failure or wireless link failure in a relay forwarding scenario to trigger node reselection. Attached Figure Description

[0068] Figure 1 A functional diagram of an exemplary NCR provided for an embodiment of this application;

[0069] Figure 2 A schematic diagram illustrating an exemplary communication scenario provided in an embodiment of this application;

[0070] Figure 3 A flowchart illustrating a transmission method provided in this application embodiment. Figure 1 ;

[0071] Figure 4 A flowchart illustrating a transmission method provided in this application embodiment. Figure 2 ;

[0072] Figure 5 An exemplary device interaction diagram provided for an embodiment of this application;

[0073] Figure 6A schematic diagram of the structure of a relay device provided in this application embodiment. Figure 1 ;

[0074] Figure 7 A schematic diagram of the structure of a relay device provided in this application embodiment. Figure 2 ;

[0075] Figure 8 A schematic diagram of a base station structure provided in an embodiment of this application. Figure 1 ;

[0076] Figure 9 A schematic diagram of a base station structure provided in an embodiment of this application. Figure 2 . Detailed Implementation

[0077] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0078] The technical solutions of this application and how they solve the aforementioned technical problems will be described in detail below through embodiments and in conjunction with the accompanying drawings. The embodiments below can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0079] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0080] This application provides a transmission method applied to a relay device. The relay device can be an NCR, a repeater, or a network node; the specific relay device is not limited in this application.

[0081] Figure 3 A flowchart illustrating a transmission method provided in this application embodiment. Figure 1 .like Figure 3 As shown in the embodiments of this application, the transmission method applied to the relay device mainly includes the following steps:

[0082] S101. In the event of beam failure or wireless link failure in the connection with the first node, send first information to the base station; wherein the first information is used to indicate that beam failure or wireless link failure has occurred.

[0083] In the embodiments of this application, if the relay device experiences beam failure or wireless link failure in the connection with the first node, it sends first information to the base station.

[0084] It should be noted that, in the embodiments of this application, the first node can be any node used for forwarding with the relay device, and the embodiments of this application are not limited thereto.

[0085] It should be noted that, in the embodiments of this application, the connection between the relay device and the first node can be described as a link or connection between the relay device and the first node. The first node can be a base station. Furthermore, it can also be described as a connection between the forwarding function of the relay device and the base station, or a forwarding link between the relay device and the base station. The embodiments of this application do not limit this.

[0086] It should be noted that, in the embodiments of this application, when the relay device experiences beam failure or wireless link failure in the connection with the first node, it sends the first information to the base station. Specifically, this can be when the relay device detects beam failure, or after detecting beam failure, it sends the first information to the base station.

[0087] In embodiments of this application, the relay device can determine that the connection with the first node has failed due to beam failure or wireless link failure if the beam of the first node does not meet the constraints. In this case, the relay device's forwarding function will not transmit, receive, or forward.

[0088] It should be noted that, in the embodiments of this application, if the radiolink quality of the first node's beam fails to meet the threshold, or the reference signal receiving power (RSRP) threshold or detection requirement, then it is determined that the first node's beam does not meet the constraint conditions. Of course, the constraint conditions can also be other related limiting conditions, which are not limited in the embodiments of this application. The beam can also be a reference signal, or a reference signal resource, or a resource, or a configuration of resources.

[0089] In embodiments of this application, the relay device can send first information to the base station, including: sending the first information to the base station through a control link with the base station.

[0090] It should be noted that, in the embodiments of this application, the relay device can transmit the first information through an uplink scheduling request (SR) and / or a media access control element (MAC CE); wherein, SR is a scheduling resource request configured by the Radio Resource Control (RRC) for beam failure of the forwarding function, and MAC CE is used to indicate that beam failure or radio link failure has occurred in the forwarding function.

[0091] In embodiments of this application, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0092] It should be noted that in the embodiments of this application, the candidate node is the base station or other network node that performs forwarding, such as other repeaters. The specific candidate node is not limited in the embodiments of this application.

[0093] In embodiments of this application, the node information of the candidate node includes one or more of the following:

[0094] The node identifier and / or configuration identifier of the candidate node;

[0095] Frequency information of candidate nodes;

[0096] Cell information for candidate nodes;

[0097] Reference signal information.

[0098] It should be noted that in the embodiments of this application, there may be one or more candidate nodes. Based on this, the first information may include the node information of each candidate node.

[0099] It should be noted that, in the embodiments of this application, the frequency information indicating beam failure or radio link failure can be indicated by frequency band, by the serving cell identifier, or by Absolute Radio Frequency Channel Number (ARFCN). When a relay device can forward multiple frequency points or frequency bands, reporting the frequency information indicating beam failure or radio link failure can help the base station identify the frequency or carrier where beam identification or radio link identification occurs, as well as the operating frequency information of candidate nodes.

[0100] In the embodiments of this application, the relay device can not only perform the above-described step S101, but also perform the following steps: receiving the measurement configuration of the candidate node sent by the base station; measuring the candidate node based on the measurement configuration, and sending the measurement results of the candidate node to the base station.

[0101] It should be noted that, in the embodiments of this application, the base station can be configured to perform measurement of candidate nodes on the frequency where the forwarding is located or on a certain frequency, and then report the measurement results.

[0102] In embodiments of this application, the measurement configuration includes the node identifier of the candidate node and the measurement information of the reference signal;

[0103] The measurement results of the candidate nodes include at least one of the following:

[0104] Candidate node node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal to interference plus noise ratio (SINR).

[0105] It should be noted that, in the embodiments of this application, the measurement configuration of the candidate node may include configuration information of the candidate node's relevant reference signals, frequency information, Synchronization Signal / PBCH Block (SSB) location, period information, and SSB Measurement Timing Configuration (SMTC). The SMTC includes period and offset information, including the transmit power of the candidate node's SSB. Furthermore, it may also include configuration information related to the candidate node's Channel State Information-Reference Signal (CSI-RS), including CSI-RS location information (resource location), period, and frequency. The specific measurement configuration of the candidate node can be set according to actual needs, and this embodiment of the application does not limit it.

[0106] It should be noted that, in the embodiments of this application, the relay device measures the candidate node based on the measurement configuration. The measurement results may include the node identifier of the candidate node, the identification information of the reference signal or SSB, RSRP and / or SINR information, and report them to the base station so that the base station can understand the channel quality information on the forwarding frequency and decide whether a node handover is needed for forwarding.

[0107] It should be noted that, in the embodiments of this application, the number of candidate nodes, the number of measured reference signals, or the number of reported reference signals can all be configured through RRC. The measurement result reporting behavior can be periodic, semi-continuous, or aperiodic, and this embodiment of the application does not limit it.

[0108] In embodiments of this application, the relay device may further perform the following steps: receiving second information sent by the base station; wherein the second information is used to indicate a second node; and initiating random access to the second node based on the second information. Initiating random access may involve sending a preamble or a Physical Random Access Channel (PRACH).

[0109] It should be noted that, in the embodiments of this application, the second node can be another base station or network node, used for forwarding with the relay device. Furthermore, the second node can be selected from the aforementioned candidate nodes, and the selection can be based on the measurement results of the candidate nodes reported by the relay device to the base station.

[0110] It should be noted that existing protocols only specify dynamic control for NCR forwarding functions. For example, the Radio Network Temporary Identity (RNTI) is only used for beam indication based on Downlink Control Information (DCI). Therefore, the RNTI of a relay device can be used to indicate random access for the NCR forwarding function. Based on this, in the embodiments of this application, the second information can be scrambled using the RNTI of the relay device to distinguish the behavior of the NCR forwarding function of the relay device.

[0111] In embodiments of this application, the second information includes the node identifier and / or configuration identifier of the second node, and the SSB index.

[0112] In the embodiments of this application, after the relay device initiates random access to the second node based on the second information, it can also send third information to the base station; wherein, the third information is used to indicate that the relay device has successfully connected with the second node, or that the relay device has failed to connect with the second node.

[0113] It should be noted that, in the embodiments of this application, after the relay device initiates random access to the second node based on the second information, if it receives feedback information from the second node, such as a Random Access Response (RAR) carrying uplink synchronization information, it determines that the connection with the second node is successful. If no feedback information is received within a certain period of time, it determines that the connection with the second node has failed. Based on this, the relay device can send third information through the control link with the base station. This third information can specifically be a MAC CE indicating whether the relay device has successfully connected to the second node or whether the connection has failed.

[0114] This application provides a transmission method applied to a base station. Figure 4 A flowchart illustrating a transmission method provided in this application embodiment. Figure 2 .like Figure 4 As shown in the embodiments of this application, the transmission method applied to the base station includes:

[0115] S201, Receive first information sent by the relay device; wherein, the first information is used to indicate that the connection between the relay device and the first node has failed due to beam failure or wireless link failure.

[0116] In the embodiments of this application, corresponding to the method on the relay device side described above, the base station can receive the first information sent by the relay device.

[0117] It should be noted that, in the embodiments of this application, the connection between the relay device and the first node can be described as a link or connection between the relay device and the first node. The first node can be a base station. Furthermore, it can also be described as a connection between the forwarding function of the relay device and the base station, or a forwarding link between the relay device and the base station. The embodiments of this application do not limit this.

[0118] In embodiments of this application, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0119] In embodiments of this application, the node information of the candidate node includes one or more of the following:

[0120] The node identifier and / or configuration identifier of the candidate node;

[0121] Frequency information of candidate nodes;

[0122] Cell information for candidate nodes;

[0123] Reference signal information.

[0124] It should be noted that, in the embodiments of this application, the explanation of the first information can be found in the relevant content on the relay device side above, and will not be repeated here.

[0125] In embodiments of this application, the base station may further perform the following steps: determining a second node based on the first information and / or the measurement results of the candidate nodes sent by the relay device; sending second information to the relay device; wherein the second information is used to instruct the second node so that the relay device initiates random access to the second node, and initiating random access may be the transmission of preamble or PRACH.

[0126] It should be noted that, in the embodiments of this application, the second node can be another base station or network node, used for forwarding with the relay device. The base station can send the measurement configuration of the candidate node to the relay device, so that the relay device can measure the candidate node, thereby receiving the measurement results of the candidate node sent by the relay device to determine the second node. The measurement configuration of the candidate node includes the candidate node's identification information and the measurement information of the reference signal; the measurement results of the candidate node include at least one of the following: the candidate node's node identifier and / or configuration identifier, reference signal information, RSRP and / or SINR. Of course, the second node can also be determined based on the first information, or the second node can be determined jointly based on the first information and the measurement results of the candidate node; this embodiment of the application does not limit this.

[0127] In the embodiments of this application, the second information sent by the base station to the relay device can be scrambled using the relay device's RNTI to distinguish whether it is the behavior of the relay device's NCR forwarding function. The second information includes the node identifier and / or configuration identifier of the second node, as well as the SSB index, and the second information can be sent through the control link between the base station and the relay device.

[0128] In the embodiments of this application, after the base station sends second information to the relay device to enable the relay device to initiate random access to the second node, it can also perform the following steps: receiving third information sent by the relay device; wherein, the third information is used to indicate that the relay device has successfully connected with the second node, or that the relay device has failed to connect with the second node.

[0129] In the embodiments of this application, after the base station receives the third information sent by the relay device, it may also perform the following steps: if the third information indicates that the relay device has successfully connected with the second node, the base station performs forwarding control on the relay device through the control link between the base station and the relay device; if the third information indicates that the relay device has failed to connect with the second node, the base station instructs or configures the relay device to re-initiate node access.

[0130] It is understood that in the embodiments of this application, if the relay device fails to connect with the second node, the base station will instruct or configure the relay device to re-initiate node access. If the relay device successfully connects with the second node, the base station will control the relay forwarding. The specific control information issued may include frequency point information, time resource information, and beam information of the NCR forwarding function. Among them, the frequency point information may be the serving cell identifier, carrier identifier information, or index of the working frequency, etc., which is not limited in the embodiments of this application.

[0131] Based on the above-described transmission method applied to relay devices and base stations, the following example illustrates the interaction process between relay devices, base stations, and different nodes.

[0132] Figure 5 This is an exemplary device interaction diagram provided for an embodiment of this application. Figure 5 As shown in the embodiments of this application, the execution entities involved include: a 5G base station (the next generation Node B, gNB), NCR, a first node Node1, and a second node Node2. The NCR includes NCR-MT and the NCR forwarding function-related interaction process as follows:

[0133] S301, NCR-MT or NCR forwarding function in NCR detects beam failure or wireless link failure in the link with Node1;

[0134] S302, NCR's NCR forwarding function does not send or receive and / or does not forward;

[0135] S303 and NCR send SR and / or MAC CE to gNB on the control link via NCR-MT to indicate that the link has experienced beam failure or radio link failure; wherein, SR and / or MAC CE can indicate the node information of the candidate node, and / or the frequency information of the beam failure or radio link failure.

[0136] S304, gNB indicates Node2's information to NCR-MT of NCR, instructing the establishment of a connection between NCR forwarding function and Node2;

[0137] S305 and NCR connect to Node2 via the NCR forwarding function;

[0138] After S306 and Node2 successfully connect, they send information back to NCR-MT of NCR.

[0139] S307 and NCR indicate a successful connection to gNB via NCR-MT on the control link.

[0140] Based on the above, the technical solution provided in this application, by introducing information on beam failure or wireless link failure in relay forwarding scenarios, can improve the robustness of relay forwarding in out-of-band control scenarios. Here, out-of-band refers to the fact that NCR control and forwarding can operate on different frequencies or frequency bands. For example, NCR-MT can operate on frequency point / frequency band 1, and the NCR forwarding function can operate on frequency point / frequency band 2. By indicating random access or switching of relay forwarding, the upper-level node of data forwarding is updated, thereby improving the robustness of the relay device. By sending indication information through the control link, the relay device can be assisted in performing inter-frequency forwarding control or out-of-band control signaling indication.

[0141] This application provides a relay device. Figure 6 A schematic diagram of the structure of a relay device provided in this application embodiment. Figure 1 .like Figure 6 As shown, the relay equipment includes:

[0142] The first communication module 401 is used to send first information to the base station in the event of a beam failure or a wireless link failure in the connection with the first node; wherein the first information is used to indicate that the connection has experienced a beam failure or a wireless link failure.

[0143] In one embodiment of this application, the first communication module is used to send the first information to the base station via a control link with the base station.

[0144] In one embodiment of this application, the relay device further includes a first processing module 402, used to determine whether the connection has experienced beam failure or wireless link failure when the beam of the first node does not meet the constraint conditions.

[0145] In one embodiment of this application, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0146] In one embodiment of this application, the node information of the candidate node includes one or more of the following:

[0147] The node identifier and / or configuration identifier of the candidate node;

[0148] The frequency information of the candidate nodes;

[0149] The cell information of the candidate nodes;

[0150] Reference signal information.

[0151] In one embodiment of this application, the first communication module 401 is further configured to receive the measurement configuration of the candidate node sent by the base station;

[0152] The first processing module 402 is further configured to measure the candidate node based on the measurement configuration and send the measurement results of the candidate node to the base station.

[0153] In one embodiment of this application, the measurement configuration includes the node identifier of the candidate node and measurement information of the reference signal;

[0154] The measurement results of the candidate nodes include at least one of the following:

[0155] The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

[0156] In one embodiment of this application, the first communication module 401 is further configured to receive second information sent by the base station; wherein the second information is used to instruct a second node; and to initiate random access to the second node based on the second information.

[0157] In one embodiment of this application, the second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

[0158] In one embodiment of this application, the second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

[0159] In one embodiment of this application, the first communication module 401 is further configured to send third information to the base station; wherein the third information is used to indicate that the relay device has successfully connected with the second node, or that the relay device has failed to connect with the second node.

[0160] Figure 7 A schematic diagram of the structure of a relay device provided in this application embodiment. Figure 2 .like Figure 7 As shown, the relay device includes: a first processor 501, a first memory 502, and a first communication bus 503;

[0161] The first communication bus 503 is used to realize the communication connection between the first processor 501 and the first memory 502;

[0162] The first processor 501 is configured to execute one or more computer programs stored in the first memory 502 to implement a transmission method applied to a relay device.

[0163] This application provides a base station. Figure 8 A schematic diagram of a base station structure provided in an embodiment of this application. Figure 1 .like Figure 8 As shown, the base station includes:

[0164] The second communication module 601 is used to receive first information sent by the relay device; wherein the first information is used to indicate that the connection between the relay device and the first node has failed due to beam failure or wireless link failure.

[0165] In one embodiment of this application, the first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

[0166] In one embodiment of this application, the node information of the candidate node includes one or more of the following:

[0167] The node identifier and / or configuration identifier of the candidate node;

[0168] The frequency information of the candidate nodes;

[0169] The cell information of the candidate nodes;

[0170] Reference signal information.

[0171] In one embodiment of this application, the base station further includes a second processing module 602, used to determine a second node based on the first information and / or the measurement results of the candidate nodes sent by the relay device;

[0172] The second communication module 601 is further configured to send second information to the relay device; wherein the second information is configured to instruct the second node to enable the relay device to initiate random access to the second node.

[0173] In one embodiment of this application, the second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

[0174] In one embodiment of this application, the second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

[0175] In one embodiment of this application, the second communication module 601 is further configured to send the measurement configuration of the candidate node to the relay device so that the relay device can measure the candidate node; and receive the measurement results of the candidate node sent by the relay device.

[0176] In one embodiment of this application, the measurement configuration includes the identification information of the candidate node and the measurement information of the reference signal;

[0177] The measurement results of the candidate nodes include at least one of the following:

[0178] The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

[0179] In one embodiment of this application, the second communication module 601 is further configured to receive third information sent by the relay device; wherein the third information is used to indicate that the relay device has successfully connected with the second node, or that the relay device has failed to connect with the second node.

[0180] In one embodiment of this application, the second processing module 602 is further configured to, when the third information indicates that the relay device has successfully connected with the second node, perform forwarding control on the relay device through the control link between the relay device and the second node; and when the third information indicates that the relay device has failed to connect with the second node, instruct or configure the relay device to re-initiate node access.

[0181] Figure 9 A schematic diagram of a base station structure provided in an embodiment of this application. Figure 2 .like Figure 9 As shown, the base station includes: a second processor 701, a second memory 702, and a second communication bus 703;

[0182] The second communication bus 703 is used to realize the communication connection between the second processor 701 and the second memory 702;

[0183] The second processor 701 is used to execute one or more computer programs stored in the second memory 702 to implement a transmission method applied to a base station.

[0184] This application provides a computer program product, including a computer program that, when executed by a processor, implements steps in a transmission method applied to a relay device, or steps in a transmission method applied to a base station.

[0185] This application provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements steps in a transmission method applied to a relay device, or steps in a transmission method applied to a base station. The computer-readable storage medium may be volatile memory, such as random-access memory (RAM); or non-volatile memory, such as read-only memory (ROM), flash memory, hard disk drive (HDD), or solid-state drive (SSD); or it may be a device including one or any combination of the above-mentioned memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.

[0186] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of hardware embodiments, software embodiments, or embodiments combining software and hardware aspects. Furthermore, this application can take 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) containing computer-usable program code.

[0187] This application is described with reference to schematic and / or block diagrams of implementations of methods, apparatus (systems), and computer program products according to embodiments of this application. It should be understood that each block of the schematic and / or block diagrams can be implemented by computer program instructions, and combinations of blocks in the schematic and / or block diagrams can be implemented. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the schematic and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0188] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in the implementation flow diagram. Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0189] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0190] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A transmission method, characterized in that, Applied to relay equipment, the method includes: In the event of beam failure or wireless link failure in the connection with the first node, send the first information to the base station; The first information is used to indicate that the connection has experienced beam failure or wireless link failure.

2. The method according to claim 1, characterized in that, Sending the first information to the base station includes: The first information is sent to the base station via the control link between the base station and the base station.

3. The method according to claim 1, characterized in that, The method further includes: If the beam of the first node does not meet the constraints, it is determined that the connection has experienced beam failure or wireless link failure.

4. The method according to claim 1, characterized in that, The first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

5. The method according to claim 4, characterized in that, The node information of the candidate nodes includes one or more of the following: The node identifier and / or configuration identifier of the candidate node; The frequency information of the candidate nodes; The cell information of the candidate nodes; Reference signal information.

6. The method according to claim 1, characterized in that, The method further includes: Receive the measurement configuration of the candidate node sent by the base station; The candidate node is measured based on the measurement configuration, and the measurement results of the candidate node are sent to the base station.

7. The method according to claim 6, characterized in that, The measurement configuration includes the node identifier of the candidate node and the measurement information of the reference signal; The measurement results of the candidate nodes include at least one of the following: The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

8. The method according to claim 1, characterized in that, The method further includes: Receive second information sent by the base station; wherein the second information is used to indicate the second node; Based on the second information, a random access is initiated to the second node.

9. The method according to claim 8, characterized in that, The second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

10. The method according to claim 8, characterized in that, The second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

11. The method according to claim 8, characterized in that, After initiating random access to the second node based on the second information, the method further includes: Send third information to the base station; The third piece of information is used to indicate whether the relay device has successfully connected to the second node or whether the relay device has failed to connect to the second node.

12. A transmission method, characterized in that, Applied to a base station, the method further includes: Receive the first message sent by the relay device; The first information is used to indicate that a beam failure or a wireless link failure has occurred in the connection between the relay device and the first node.

13. The method according to claim 12, characterized in that, The first information includes node information of the candidate node, and / or frequency information of the beam failure or wireless link failure.

14. The method according to claim 13, characterized in that, The node information of the candidate nodes includes one or more of the following: The node identifier and / or configuration identifier of the candidate node; The frequency information of the candidate nodes; The cell information of the candidate nodes; Reference signal information.

15. The method according to claim 12, characterized in that, The method further includes: Based on the first information and / or the measurement results of the candidate nodes sent by the relay device, a second node is determined; Send a second message to the relay device; wherein the second message is used to instruct the second node to initiate random access to the second node.

16. The method according to claim 15, characterized in that, The second information is scrambled using the Radio Network Temporary Identifier (RNTI) of the relay device.

17. The method according to claim 15, characterized in that, The second information includes the node identifier and / or configuration identifier of the second node, and the synchronization signal block (SSB) index.

18. The method according to claim 15, characterized in that, The method further includes: The measurement configuration of the candidate node is sent to the relay device so that the relay device can measure the candidate node; Receive the measurement results of the candidate node sent by the relay device.

19. The method according to claim 18, characterized in that, The measurement configuration includes the identification information of the candidate nodes and the measurement information of the reference signal; The measurement results of the candidate nodes include at least one of the following: The candidate node's node identifier and / or configuration identifier, reference signal information, reference signal received power (RSRP), and / or signal-to-interference-plus-noise ratio (SINR).

20. The method according to claim 15, characterized in that, After sending the second information to the relay device, the method further includes: Receive the third information sent by the relay device; The third piece of information is used to indicate whether the relay device has successfully connected to the second node or whether the relay device has failed to connect to the second node.

21. The method according to claim 20, characterized in that, After receiving the third information sent by the relay device, the method further includes: If the third information indicates that the relay device has successfully connected with the second node, the relay device is forwarded via the control link between the relay device and the second node. If the third information indicates that the relay device has failed to connect with the second node, the relay device is instructed or configured to re-initiate node access.

22. A relay device, characterized in that, include: A first processor, a first memory, and a first communication bus; The first communication bus is used to establish a communication connection between the first processor and the first memory; The first processor is configured to execute one or more computer programs stored in the first memory to implement the transmission method according to any one of claims 1-11.

23. A base station, characterized in that, include: Second processor, second memory, and second communication bus; The second communication bus is used to establish a communication connection between the second processor and the second memory; The second processor is configured to execute one or more computer programs stored in the second memory to implement the transmission method according to any one of claims 12-21.

24. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the transmission method as described in any one of claims 1-21.

25. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the transmission method as described in any one of claims 1-21.

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