Communication method, device and equipment

Abstract

The embodiment of the present application provides a communication method, apparatus and device, the method comprising: a terminal device determines that a continuous listen-before-talk LBT failure occurs in a first cell under a first network device; the terminal device sends a first indication information to a second network device, the first indication information is used to indicate that the terminal device has a continuous LBT failure in the first cell. The data transmission efficiency is improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of communication technology, and in particular to a communication method, apparatus and device. Background Art

[0002] Currently, unlicensed spectrum can be used through a listen before talk (LBT) approach.

[0003] During the LBT process, before the terminal device sends data, the terminal device first performs channel assessment. When the terminal device determines that the channel is idle, the terminal device sends uplink data on the channel. If the terminal device fails in LBT continuously, the network device can adjust the resources allocated to the terminal device. During the switching process, the resources used by the terminal device before and after the switch may be the same. If the terminal device fails in LBT continuously on the resource before the switch, the terminal device may also fail in LBT continuously on the resource after the switch, making it impossible for the terminal device to send uplink data in time, resulting in low data transmission efficiency. Summary of the invention

[0004] The embodiments of the present invention provide a communication method, apparatus and device, which improve data transmission efficiency.

[0005] In a first aspect, an embodiment of the present application provides a communication method, the method comprising:

[0006] The terminal device determines that a continuous listen-before-talk LBT failure occurs in a first cell under a first network device;

[0007] The terminal device sends first indication information to the second network device, where the first indication information is used to indicate that continuous LBT failures occur in the first cell for the terminal device.

[0008] In a possible implementation manner, the first network device and the second network device are network devices to which the terminal device is connected when switching.

[0009] In a possible implementation manner, the first network device is a source network device, and the second network device is a target network device; or,

[0010] The first network device is a target network device, and the second network device is a source network device.

[0011] In a possible implementation manner, the terminal device is connected to the first network device and the second network device respectively.

[0012] In a possible implementation manner, the terminal device sending the first indication information to the second network device includes:

[0013] The terminal device sends a first message to the second network device, and the first message includes the first indication information.

[0014] In a possible implementation manner, the first message is at least one of the following information:

[0015] Radio resource control RRC message, media access control element MAC CE, uplink control information UCI.

[0016] In a possible implementation manner, the first message further includes at least one of the following information:

[0017] an identifier of the first cell;

[0018] The bandwidth part BWP allocated by the first network device to the terminal device;

[0019] The LBT bandwidth of the terminal device with consecutive LBT failures.

[0020] In a possible implementation, when the first network device is a target network device, the second network device is a source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that the terminal device has a continuous LBT failure in the first cell of the first network device during the switching process.

[0021] In a possible implementation, the bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device for continuous LBT failures.

[0022] In a possible implementation manner, the terminal device determines that a continuous listen-before-talk LBT failure occurs in a first cell under the first network device, including:

[0023] If the number of consecutive LBT failures of the terminal device is greater than or equal to the first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to the second threshold, it is determined that consecutive listen-before-talk LBT failures occur in the first cell under the first network device.

[0024] In a possible implementation, the switching is dual protocol stack DAPS switching.

[0025] In a second aspect, an embodiment of the present application provides a communication device, which is applied to a terminal device. The device includes a processing module and a sending module, wherein:

[0026] The processing module is used to determine that continuous listen-before-talk LBT failures occur in a first cell under a first network device;

[0027] The sending module is used to send first indication information to the second network device, where the first indication information is used to indicate that continuous LBT failures occur in the first cell of the terminal device.

[0028] In a possible implementation manner, the first network device and the second network device are network devices to which the terminal device is connected when switching.

[0029] In a possible implementation manner, the first network device is a source network device, and the second network device is a target network device; or,

[0030] The first network device is a target network device, and the second network device is a source network device.

[0031] In a possible implementation manner, the terminal device is connected to the first network device and the second network device respectively.

[0032] In a possible implementation manner, the sending module is specifically configured to:

[0033] A first message is sent to the second network device, where the first message includes the first indication information.

[0034] In a possible implementation manner, the first message is at least one of the following information:

[0035] Radio resource control RRC message, media access control element MAC CE, uplink control information UCI.

[0036] In a possible implementation manner, the first message further includes at least one of the following information:

[0037] an identifier of the first cell;

[0038] The bandwidth part BWP allocated by the first network device to the terminal device;

[0039] The LBT bandwidth of the terminal device with consecutive LBT failures.

[0040] In a possible implementation, when the first network device is a target network device, the second network device is a source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that the terminal device has a continuous LBT failure in the first cell of the first network device during the switching process.

[0041] In a possible implementation, the bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device for continuous LBT failures.

[0042] In a possible implementation manner, the processing module is specifically used to:

[0043] If the number of consecutive LBT failures is greater than or equal to the first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to the second threshold, it is determined that consecutive listen-before-talk LBT failures occur in the first cell under the first network device.

[0044] In a possible implementation, the switching is dual protocol stack DAPS switching.

[0045] In a third aspect, an embodiment of the present application provides a terminal device, including: a transceiver, a processor, and a memory;

[0046] The memory stores computer-executable instructions;

[0047] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the communication method as described in any one of the first aspects.

[0048] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the communication method described in any one of the first aspects.

[0049] The communication method, apparatus and equipment provided by the embodiments of the present application are such that, during a switching process, a terminal device is simultaneously connected to a first network device and a second network device. If a continuous LBT failure occurs in a first cell of the first network device, the terminal device may send a first indication message to the second network device to indicate that a continuous LBT failure occurs in the first cell of the terminal device. In this way, the second network device may configure the terminal device according to the first indication message to reduce the probability of a LBT failure occurring in the cell of the terminal device under the second network device, thereby improving data transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0051] Figure 1 A schematic diagram of a switching process provided in an embodiment of the present application;

[0052] Figure 2A system architecture diagram provided for an embodiment of the present application;

[0053] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0054] Figure 4 A schematic diagram of continuous LBT failure provided in an embodiment of the present application;

[0055] Figure 5 A schematic diagram of LBT failure provided in an embodiment of the present application;

[0056] Figure 6 A flowchart of another communication method provided in an embodiment of the present application;

[0057] Figure 7 A flowchart of another communication method provided in an embodiment of the present application;

[0058] Figure 8 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0059] Fig. 9 A schematic diagram of the structure of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] To facilitate understanding, the concepts involved in this application are first explained.

[0061] The communication systems to which the embodiments of the present application can be applied may include: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, long term evolution (LTE) system or fifth generation mobile communication (5th-generation, 5G) system. Of course, the communication system can also be other, and the embodiments of the present application do not specifically limit this.

[0062] Terminal equipment: usually has wireless transceiver function, and the terminal equipment can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal equipment can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal equipment, an augmented reality (AR) terminal equipment, a wireless terminal in industrial control, a vehicle-mounted terminal equipment, a wireless terminal in self-driving, a wireless terminal equipment in remote medical, a wireless terminal equipment in smart grid, a wireless terminal equipment in transportation safety, a wireless terminal equipment in smart city, a wireless terminal equipment in smart home, a wearable terminal equipment, etc. The terminal equipment involved in the embodiments of the present application may also be referred to as a terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. The terminal equipment may also be fixed or mobile.

[0063] Network device: It can be a device used to communicate with mobile devices. Network devices can be access points (AP) in WLAN, base transceiver stations (BTS) in GSM or CDMA, base stations (NodeB, NB) in WCDMA, evolutionary node B (eNB or eNodeB) in LTE, base stations in 5G, relay stations or access points, vehicle-mounted devices, wearable devices, and network devices (gNB) in NR networks or network devices in future evolved PLMN networks, etc.

[0064] The LBT process may include: before the terminal device sends uplink data to the network device, the terminal device first performs a clear channel assessment (CCA). If the assessment result is that the channel is idle, the terminal device sends the uplink data. If the assessment result is that the channel is occupied, the terminal device does not send uplink data within a preset period of time. The terminal device can perform CCA after the preset period of time. LBT can also be called CCA. During an LBT process, if the terminal device detects that the channel status is occupied, it can be determined that this LBT has failed.

[0065] Handover: Also known as network handover, it refers to the process of a terminal device switching from a source cell to a target cell. The source cell can be a cell under a source network device, and the target cell can be a cell under a target network device. The source network device is the network device to which the terminal device is connected before the handover, and the target network device is the network device to which the terminal device is connected after the handover. During the handover process, the terminal device may be connected to both the source network device and the target network device at the same time. Figure 1 , introducing a possible switching method.

[0066] Figure 1 A schematic diagram of a switching process provided in an embodiment of the present application. Figure 1 , the switching process may include the following steps:

[0067] S101. The terminal device sends a measurement report to the source network device.

[0068] S102: The source network device selects a target network device for the terminal device according to the measurement report.

[0069] S103: The source network device sends a switching request message to the target network device.

[0070] Optionally, the switching request message may include an identifier of the terminal device.

[0071] S104: The target network device sends a switching response message to the source network device.

[0072] Optionally, the handover response message may include measurement configuration information.

[0073] S105. The source network device sends a radio resource control (RRC) reconfiguration message to the terminal device.

[0074] Optionally, the RRC reconfiguration message may include an identifier of the target network device so that the terminal device switches to the target network device.

[0075] S106: The terminal device initiates random access to the target network device.

[0076] It should be noted that the process of random access between the terminal device and the target network device can be referred to in the prior art and will not be described in detail here.

[0077] S107. The terminal device sends an RRC reconfiguration completion message to the target network device.

[0078] S108: The target network device performs a packet data convergence protocol (PDCP) anchor point switching operation.

[0079] After the target network device performs the PDCP anchor point switching operation, the service between the terminal device and the source network device is switched to the target network device.

[0080] S109. The source network device sends an SN (Sequence Number) status report to the target network device.

[0081] Optionally, the SN status report may include an identifier of the service of the terminal device that has not yet been processed by the source network device.

[0082] S110. The terminal device sends a measurement report to the target network device.

[0083] Optionally, the measurement report may be used to indicate that the link quality between the terminal device and the source network device is poor.

[0084] S111. The target network device determines that the terminal device releases resources between the terminal device and the source network device.

[0085] S112. The target network device sends a UE context release request message to the source network device.

[0086] S113. The target network device sends an RRC reconfiguration message to the terminal device.

[0087] Through the above S101-S113, the terminal device can be switched from the source network device to the target network device, wherein between S107-S112 (after the terminal device and the target network device are randomly accessed successfully, and before the terminal device and the source network device are disconnected), the terminal device can maintain connection with the source network device and the target network device at the same time.

[0088] Next, combine Figure 2 , introduces the system architecture applicable to the embodiments of the present application.

[0089] Figure 2 A system architecture diagram provided for an embodiment of the present application. Figure 2 , including network device 301, network device 302 and terminal device 303. The service cell of network device 301 can be called cell 1, and the service cell of network device 302 can be called cell 2. Assuming that cell 1 and cell 2 have an overlapping area, terminal device 303 can be located in the overlapping area. Before switching, terminal device 303 is connected to network device 301. During switching, terminal device 303 is connected to network device 301 and network device 302 respectively. After switching, terminal device 303 is connected to network device 302.

[0090] In an embodiment of the present application, during switching, the terminal device is connected to two network devices (recorded as a first network device and a second network device) at the same time. If the terminal device has continuous LBT failures in the first cell under the first network device, the terminal device can send a first indication message to the second network device to indicate that the terminal device has continuous LBT failures in the first cell. In this way, the second network device can configure the resources of the terminal device according to the second indication message to avoid LBT failures in the cell under the second network device, thereby reducing the probability of LBT failure of the terminal device and improving data transmission efficiency.

[0091] The technical solution shown in the present application is described in detail below through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar contents will not be repeatedly described in different embodiments.

[0092] Figure 3 A flow chart of a communication method provided in an embodiment of the present application. Figure 3 , the method may include:

[0093] S301. A terminal device determines that continuous LBT failures occur in a first cell under a first network device.

[0094] When the terminal device is located in the first cell, when the terminal device needs to send uplink data, the terminal device performs LBT to determine whether the channel is currently idle. When the terminal device determines that the channel is occupied, the LBT of the terminal device fails.

[0095] Continuous LBT failure means that the number of consecutive LBT failures of the terminal device is greater than or equal to a first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to a second threshold.

[0096] Optionally, the terminal device can determine the occurrence of continuous LBT failures in the following manner: initially, the number of LBT failures is 0. After the terminal device fails in LBT, the terminal device increases the number of LBT failures by 1 and starts a timer. If the timer times out (the duration is greater than a second threshold), the number of LBT failures is reset to zero. If the timer does not time out and the terminal device generates a new LBT failure, the number of LBT failures is increased by 1 and a new timer is started, and so on, until the number of LBT failures is equal to the first threshold, it is determined that the terminal device has experienced continuous LBT failures.

[0097] Next, combine Figure 4-Figure 5 , continuous LBT failure is explained through specific examples.

[0098] Figure 4 A schematic diagram of continuous LBT failure provided in an embodiment of the present application. Figure 4 , Initially, the number of LBT failures C = 0, assuming that the first threshold is 4 and the second threshold is ta.

[0099] After the first LBT failure (recorded as LBT failure 1), the terminal device increases the number of LBT failures C by 1, and at this time, the number of LBT failures C = 1. The terminal device starts a timer, and it is assumed that the duration of the timer is a second threshold value ta.

[0100] After t1 (less than ta), the terminal device fails LBT for the second time (recorded as LBT failure 2). Since the timer has not timed out at this time, the terminal device adds 1 to the LBT number C. At this time, the LBT failure number C = 2. The terminal device starts a new timer.

[0101] After t2 (less than ta), the terminal device fails LBT for the third time (recorded as LBT failure 3). Since the timer has not timed out at this time, the terminal device adds 1 to the LBT number C. At this time, the LBT failure number C = 3. The terminal device starts a new timer.

[0102] After t3 (less than ta), the terminal device fails the LBT for the fourth time (recorded as LBT failure 4). Since the timer has not timed out at this time, the terminal device adds 1 to the LBT number C. At this time, the LBT failure number C = 4. The first threshold is 4. Since the LBT failure number C is 4 (equal to the first threshold 4) at this time, it can be determined that the terminal device has continuous LBT failures.

[0103] Figure 5 A schematic diagram of LBT failure provided in an embodiment of the present application. Figure 5 , Initially, the number of LBT failures C = 0, assuming that the first threshold is 4 and the second threshold is ta.

[0104] After the first LBT failure (recorded as LBT failure 1), the terminal device increases the number of LBT failures C by 1, and at this time, the number of LBT failures C = 1. The terminal device starts a timer, and it is assumed that the duration of the timer is a second threshold value ta.

[0105] After t1 (less than ta), the terminal device fails LBT for the second time (recorded as LBT failure 2). Since the timer has not timed out at this time, the terminal device adds 1 to the LBT number C. At this time, the LBT failure number C = 2. The terminal device starts a new timer.

[0106] After ta, the timer times out, and the number of LBT failures C is reset to zero. At this time, the number of LBT failures C=0.

[0107] S302. The terminal device sends first indication information to the second network device.

[0108] In an embodiment of the present application, the terminal device is connected to the first network device and the second network device respectively. The first network device and the second network device may be network devices to which the terminal device is connected when switching. The switching may be a dual protocol stack DAPS switching.

[0109] For example, when the first network device is the source network device, the second network device is the target network device. Alternatively, when the first network device is the target network device, the second network device is the source network device. The source network device refers to the network device connected before the terminal device switches, and the target network device refers to the network device connected after the terminal device switches.

[0110] The first indication information is used to indicate that continuous LBT failures occur in the first cell for the terminal device.

[0111] The terminal device may send the first indication information to the network device in the following manner: the terminal device sends a first message to the second network device, where the first message includes the first indication information.

[0112] Optionally, the first information may be at least one of the following information: RRC message, media access control element (MAC CE), and uplink control information (UCI).

[0113] The first message also includes at least one of the following information: an identifier of the first cell; a bandwidth part BWP allocated by the first network device to the terminal device; and an LBT bandwidth of the terminal device for consecutive LBT failures.

[0114] Optionally, when the first network device is the target network device, the second network device is the source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that the terminal device has a continuous LBT failure in the first cell of the first network device during the switching process. The RRC message can be RRC failure information.

[0115] Optionally, when the bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device with continuous LBT failures, the terminal device sends the first indication information to the second network device. If the bandwidth corresponding to the second network device does not include the LBT bandwidth of the terminal device with continuous LBT failures, the terminal device may not send the first indication information to the second network device.

[0116] When the second network device receives the first indication information sent by the terminal device, the second network device may perform configuration operations on the terminal device according to the first indication information. Optionally, the configuration operation may include at least one of the following operations: BWP configuration / activation operation, carrier aggregation (CA) configuration / activation operation, resource scheduling operation, measurement configuration, switching decision, etc.

[0117] For example, assuming that the first network device is the source network device and the second network device is the target network device, if the first information received by the second network device includes the first indication information and the LBT bandwidth of the terminal device's continuous LBT failures, the second network device may not allocate the LBT bandwidth to the terminal device to avoid continuous LBT failures on the LBT bandwidth after the terminal device switches.

[0118] For example, assuming that the first network device is the target network device and the second network device is the source network device, if the second network device receives the first information and BWP included in the first information, the second network device can determine not to switch the terminal device to the first network device temporarily.

[0119] In the communication method provided by the embodiment of the present application, during a switching process, a terminal device is connected to a first network device and a second network device at the same time. If a continuous LBT failure occurs in a first cell under the first network device, the terminal device can send a first indication message to the second network device to indicate that a continuous LBT failure occurs in the first cell of the terminal device. In this way, the second network device can configure the terminal device according to the first indication message to reduce the probability of an LBT failure occurring in the cell of the terminal device under the second network device, thereby improving data transmission efficiency.

[0120] Based on any of the above embodiments, Figure 6-Figure 7, the above communication method is further described in detail.

[0121] Figure 6 A flow chart of another communication method provided in an embodiment of the present application. Figure 6 , the method may include:

[0122] S601. The terminal device determines that continuous LBT failures occur in a cell under the source network device.

[0123] The application scenario of the embodiment of the present application can be a switching scenario, where the terminal device is connected to the source network device and the target network device at the same time. During the switching process, the terminal device can communicate with the source network device, and during the communication process between the terminal device and the source network device, the terminal device performs LBT on the resources under the source network device.

[0124] It should be noted that the execution process of S601 can refer to the execution process of S301, and will not be repeated here.

[0125] S602: The terminal device sends first indication information to the target network device.

[0126] It should be noted that the execution process of S602 can refer to the execution process of S302, which will not be described in detail here.

[0127] S603: The target network device configures the terminal device according to the first instruction information.

[0128] Optionally, the configuration operation may include at least one of the following operations: BWP configuration / activation operation, CA configuration / activation operation, resource scheduling operation, measurement configuration, switching decision, etc.

[0129] exist Figure 6 In the illustrated embodiment, during the switching process, the terminal device is connected to the source network device and the target network device at the same time. If the terminal device has continuous LBT failures in the cell under the source network device, the terminal device can send a first indication message to the target network device to indicate that the terminal device has continuous LBT failures in the cell under the source network device. In this way, the target network device can configure the terminal device according to the first indication message to reduce the probability of LBT failures in the cell under the target network device, thereby improving data transmission efficiency.

[0130] Figure 7 A flow chart of another communication method provided in an embodiment of the present application. Figure 7 , the method may include:

[0131] S701. The terminal device determines that continuous LBT failures occur in a cell under the target network device.

[0132] The application scenario of the embodiment of the present application can be a switching scenario, where the terminal device is connected to the source network device and the target network device at the same time. During the switching process, the terminal device can communicate with the target network device, and during the communication process between the terminal device and the target network device, the terminal device performs LBT on the resources under the target network device.

[0133] It should be noted that the execution process of S701 can refer to the execution process of S301, which will not be described in detail here.

[0134] S702. The terminal device sends first indication information to the source network device.

[0135] It should be noted that the execution process of S702 can refer to the execution process of S302, which will not be described in detail here.

[0136] S703: The source network device configures the terminal device according to the first indication information.

[0137] Optionally, the configuration operation may include at least one of the following operations: BWP configuration / activation operation, CA configuration / activation operation, resource scheduling operation, measurement configuration, switching decision, etc.

[0138] exist Figure 7 In the illustrated embodiment, during the switching process, the terminal device is connected to the source network device and the target network device at the same time. If the terminal device has continuous LBT failures in the cell under the target network device, the terminal device can send a first indication message to the source network device to indicate that the terminal device has continuous LBT failures in the cell under the target network device. In this way, the source network device can configure the terminal device according to the first indication message to reduce the probability of LBT failures in the cell under the source network device, thereby improving data transmission efficiency.

[0139] Figure 8 This is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device 10 can be set in a terminal device. Figure 8 The communication device 10 may include a processing module 11 and a sending module 12, wherein:

[0140] The processing module 11 is used to determine that continuous listen-before-talk LBT failures occur in a first cell under a first network device;

[0141] The sending module 12 is used to send first indication information to the second network device, where the first indication information is used to indicate that continuous LBT failures occur to the terminal device in the first cell.

[0142] The communication device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment, and its implementation principle and beneficial effects are similar, which will not be repeated here.

[0143] In a possible implementation manner, the first network device and the second network device are network devices to which the terminal device is connected when switching.

[0144] In a possible implementation manner, the first network device is a source network device, and the second network device is a target network device; or,

[0145] The first network device is a target network device, and the second network device is a source network device.

[0146] In a possible implementation manner, the terminal device is connected to the first network device and the second network device respectively.

[0147] In a possible implementation manner, the sending module 12 is specifically configured to:

[0148] A first message is sent to the second network device, where the first message includes the first indication information.

[0149] In a possible implementation manner, the first message is at least one of the following information:

[0150] Radio resource control RRC message, media access control element MAC CE, uplink control information UCI.

[0151] In a possible implementation manner, the first message further includes at least one of the following information:

[0152] an identifier of the first cell;

[0153] The bandwidth part BWP allocated by the first network device to the terminal device;

[0154] The LBT bandwidth of the terminal device with consecutive LBT failures.

[0155] In a possible implementation, when the first network device is a target network device, the second network device is a source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that the terminal device has a continuous LBT failure in the first cell of the first network device during the switching process.

[0156] In a possible implementation, the bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device for continuous LBT failures.

[0157] In a possible implementation manner, the processing module 11 is specifically used for:

[0158] If the number of consecutive LBT failures is greater than or equal to the first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to the second threshold, it is determined that consecutive listen-before-talk LBT failures occur in the first cell under the first network device.

[0159] In a possible implementation, the switching is dual protocol stack DAPS switching.

[0160] The communication device provided in the embodiment of the present application can execute the technical solution shown in the above method embodiment, and its implementation principle and beneficial effects are similar, which will not be repeated here.

[0161] Fig. 9 This is a schematic diagram of the structure of the terminal device provided in the embodiment of the present application. Fig. 9 The terminal device 20 may include: a transceiver 21, a memory 22, and a processor 23. The transceiver 21 may include: a transmitter and / or a receiver. The transmitter may also be referred to as a transmitter, a transmitter, a transmission port, a transmission interface, or similar descriptions, and the receiver may also be referred to as a receiver, a receiver, a reception port, a reception interface, or similar descriptions. Exemplarily, the transceiver 21, the memory 22, and the processor 23 are interconnected via a bus 24.

[0162] The memory 22 is used to store program instructions;

[0163] The processor 23 is used to execute the program instructions stored in the memory, so as to enable the terminal device 20 to execute any of the communication methods shown above.

[0164] Among them, the transmitter of the transceiver 21 can be used to perform the sending function of the terminal device in the above communication method.

[0165] An embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the above-mentioned communication method.

[0166] The embodiment of the present application may also provide a computer program product, which can be executed by a processor. When the computer program product is executed, the communication method executed by any of the terminal devices shown above can be implemented.

[0167] The terminal device, computer-readable storage medium and computer program product of the embodiments of the present application can execute the above-mentioned communication method. The specific implementation process and beneficial effects thereof are as mentioned above and will not be repeated here.

[0168] All or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a readable memory. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned memory (storage medium) includes: read-only memory (English: read-only memory, abbreviated: ROM), RAM, flash memory, hard disk, solid state drive, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.

[0169] The embodiments of the present application are 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 program instructions. These computer program instructions can be provided to a processing unit 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 processing unit 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.

[0170] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising 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.

[0171] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing 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.

[0172] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the embodiments 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.

[0173] In the present application, the term "include" and its variations may refer to non-restrictive inclusion; the term "or" and its variations may refer to "and / or". The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In the present application, "plurality" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previously associated objects are in an "or" relationship.

Claims

1. A communication method, characterized in that: include: The terminal device determines that a continuous listen-before-talk LBT failure occurs in a first cell under a first network device, wherein during a handover process, the terminal device is simultaneously connected to the first network device and a second network device; The terminal device sends a first message to the second network device, where the first message includes first indication information, so that the second network device configures the terminal device according to the first indication information, where the first indication information is used to indicate that the terminal device has continuous LBT failures in the first cell; The first message is at least one of the following information: a radio resource control RRC message, a media access control element MAC CE, and uplink control information UCI.

2. The method according to claim 1, characterized in that The first network device is a source network device, and the second network device is a target network device; or, The first network device is a target network device, and the second network device is a source network device.

3. The method according to claim 1, characterized in that The first message also includes at least one of the following information: an identifier of the first cell; The bandwidth part BWP allocated by the first network device to the terminal device; The LBT bandwidth of the terminal device with consecutive LBT failures.

4. The method according to claim 3, characterized in that When the first network device is the target network device, the second network device is the source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that continuous LBT failures occur in the first cell of the first network device during the switching process of the terminal device.

5. The method according to any one of claims 1 to 4, characterized in that: The bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device with continuous LBT failures.

6. The method according to any one of claims 1 to 4, characterized in that: The terminal device determines that continuous listen-before-talk LBT failures occur in a first cell under a first network device, including: If the number of consecutive LBT failures of the terminal device is greater than or equal to the first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to the second threshold, it is determined that consecutive listen-before-talk LBT failures occur in the first cell under the first network device.

7. The method according to claim 1, characterized in that The switching is dual protocol stack DAPS switching.

8. A communication device, characterized in that: Applied to a terminal device, the device comprises a processing module and a sending module, wherein: The processing module is used to determine that a continuous listen-before-talk LBT failure occurs in a first cell under a first network device, wherein during a switching process, the terminal device is connected to the first network device and the second network device at the same time; The sending module is used to send a first message to the second network device, wherein the first message includes first indication information, so that the second network device configures the terminal device according to the first indication information, and the first indication information is used to indicate that the terminal device has continuous LBT failures in the first cell; The first message is at least one of the following information: a radio resource control RRC message, a media access control element MAC CE, and uplink control information UCI.

9. The device according to claim 8, characterized in that The first network device is a source network device, and the second network device is a target network device; or, The first network device is a target network device, and the second network device is a source network device.

10. The device according to claim 8, characterized in that The first message also includes at least one of the following information: an identifier of the first cell; The bandwidth part BWP allocated by the first network device to the terminal device; The LBT bandwidth of the terminal device with consecutive LBT failures.

11. The device according to claim 10, characterized in that When the first network device is the target network device, the second network device is the source network device, and the first message is an RRC message, the DAPS failure information of the RRC message also includes second indication information, and the second indication information is used to indicate that continuous LBT failures occur in the first cell of the first network device during the switching process of the terminal device.

12. The device according to any one of claims 8 to 11, characterized in that: The bandwidth corresponding to the second network device includes the LBT bandwidth of the terminal device with continuous LBT failures.

13. The device according to any one of claims 8 to 11, characterized in that: The processing module is specifically used for: If the number of consecutive LBT failures is greater than or equal to the first threshold, and the time interval between two adjacent LBT failures of the terminal device is less than or equal to the second threshold, it is determined that consecutive listen-before-talk LBT failures occur in the first cell under the first network device.

14. The device according to claim 8, characterized in that The switching is dual protocol stack DAPS switching.

15. A terminal device, characterized in that: include: Transceivers, processors, memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the communication method according to any one of claims 1 to 7.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, which are used to implement the communication method according to any one of claims 1 to 7 when the computer-executable instructions are executed by a processor.

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