Communication method and communication device

Abstract

The invention provides a communication method and device, and relates to the technical field of communication, and the method comprises the steps: determining a first region where a terminal device is located according to region configuration information in a first cell corresponding to a first service; and establishing a first radio bearer according to the bearer configuration corresponding to the first area. A terminal device can determine a first area where the terminal device is located in a first cell according to acquired area configuration information corresponding to a first service, and the terminal device establishes a first radio bearer according to bearer configuration corresponding to the first area, and performs data reception of the first service through the first radio bearer. Compared with the existing data distribution scheme under the multicast broadcast service, the terminal equipment can automatically determine the area in the first cell, so that finer-grained data distribution is realized under the first service scene, and the data transmission efficiency of the first service is improved.

Description

Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a communication method and a communication device. Background Art

[0002] At present, in some scenarios, such as the vehicle to everything (V2X) service scenario of the Internet of Vehicles, the specific service data is related to the location of the terminal device. Broadcast multicast technology supports a local broadcast multicast service (MBS) mechanism. For the same service, network nodes can send different service data in different areas. The existing local MBS supports the distribution of service data at the TA or cell level granularity, that is, each cell sends different data. In the same cell, the terminal device receives the same data of the same service at any location, and for a single terminal device, the current MBS mechanism will result in low data transmission efficiency.

[0003] Therefore, under the current MBS mechanism, how to improve data transmission efficiency has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0004] The present application provides a communication method and a communication device, which can achieve finer granularity data distribution in a multicast broadcast service scenario and improve the data transmission efficiency of the service.

[0005] In a first aspect, a communication method is provided, which can be executed by a terminal device, or by a component in the terminal device (for example, a processor, a chip or a chip system, etc.), or by a logic module or software that can implement all or part of the terminal device functions.

[0006] The method includes: determining a first area where a terminal device is located according to area configuration information corresponding to a first service; and establishing a first wireless bearer according to a bearer configuration corresponding to the first area.

[0007] Based on the above scheme, the terminal device can determine the first area where the terminal device is located in the first cell according to the acquired area configuration information corresponding to the first service, and the terminal device establishes a first wireless bearer according to the bearer configuration corresponding to the first area, and receives data of the first service through the first wireless bearer. Compared with the existing data distribution scheme under the multicast broadcast service, the terminal device can determine the area in the first cell by itself, so as to achieve finer granularity data distribution in the first service scenario and improve the data transmission efficiency of the first service.

[0008] In a possible implementation manner, the method further includes: acquiring area configuration information and / or bearer configuration information corresponding to the first service.

[0009] Based on the above scheme, the terminal device can determine in real time the first area of ​​the terminal device within the first cell by obtaining the area configuration information and / or bearer configuration information corresponding to the first service, so that the terminal device can update its own wireless bearer in real time and receive service data to reduce the risk of service interruption.

[0010] In a possible implementation, the method further includes: releasing a second radio bearer, where the second radio bearer corresponds to a second area, and the second area is a candidate switching area for the terminal device.

[0011] Optionally, determining the first area where the terminal device is located in the first cell includes: moving from the second area to the first area.

[0012] Based on the above scheme, when the terminal device determines that the terminal device moves from the second area to the first area according to the area configuration information corresponding to the first service, the terminal device can first release the second wireless bearer, which corresponds to the second area, and establish the first wireless bearer through the bearer configuration corresponding to the first area. The terminal device receives the data of the first service based on the first wireless bearer, which can reduce the problem of decreased user experience caused by confusion of service data and improve the data transmission efficiency of the service.

[0013] In a possible implementation, the method further includes: sending first indication information to the first network node, the first indication information including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device.

[0014] Based on the above scheme, the terminal device can send first indication information to the first network node, and the first indication information includes indication information of the first area and / or indication information of the second area. The second area is a candidate switching area for the terminal device, so that the first network node can track the area where the terminal device is located to improve the reliability of the service data transmission.

[0015] In a possible implementation manner, the method further includes: receiving area configuration information of the second area sent by the first network node.

[0016] Based on the above scheme, the terminal device can receive the area configuration information of the second area sent by the first network node, determine the second area according to the area configuration information of the second area, release the wireless bearer corresponding to the first area, establish the wireless bearer corresponding to the second area according to the bearer configuration information corresponding to the second area, and receive the data of the first service through the wireless bearer corresponding to the second area, which can improve the transmission efficiency and reliability of the service data.

[0017] In a possible implementation manner, the area configuration information includes at least one of the following: an identifier of the area, range information of the area, and a wireless network temporary identifier of the area corresponding to the first service.

[0018] In a possible implementation, the correspondence between the first area and the bearer configuration includes: multiple first areas correspond to multiple bearer configurations, multiple first areas correspond to one bearer configuration, or one first area corresponds to multiple bearer configurations.

[0019] On the second aspect, a communication method is provided, which can be executed by a network node, or by a network device, or by a component in the network device (for example, a processor, chip or chip system, etc.), or by a logic module or software that can implement all or part of the network device functions.

[0020] The method includes: sending area configuration information and / or bearer configuration information corresponding to a first service to a terminal device; wherein the area configuration information includes information for determining a first area in which the terminal device is located within a first cell; and the bearer configuration information includes information for establishing a first wireless bearer corresponding to the first area.

[0021] Based on the above scheme, the first network node sends the area configuration information and / or bearer configuration information corresponding to the first service to the terminal device, so that the terminal device can determine the first area of ​​the terminal device in the first cell in real time by obtaining the area configuration information and / or bearer configuration information corresponding to the first service, so that the terminal device can update its own wireless bearer in real time and receive service data, thereby reducing the risk of service interruption.

[0022] In a possible implementation, the method further includes: receiving first indication information sent by the terminal device, the first indication information including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device.

[0023] Based on the above scheme, the first network node can receive the first indication information sent by the terminal device, and the first indication information includes the indication information of the first area and / or the indication information of the second area. The second area is the candidate switching area of ​​the terminal device, so that the first network node can track the area where the terminal device is located to improve the reliability of the service data transmission.

[0024] In a possible implementation manner, the method further includes: determining the second area according to the first indication information.

[0025] Based on the above scheme, the first network node can determine the second area according to the first indication information sent by the terminal device, and the second area is a candidate switching area for the terminal device, so that the first network node can track the area where the terminal device is located, thereby improving the reliability of the service data transmission.

[0026] In a possible implementation manner, the method further includes: sending area configuration information of the second area to the terminal device.

[0027] Based on the above scheme, when the first network node determines the second area according to the first indication information sent by the terminal device, the first network node can send the area configuration information of the second area to the terminal device, and the terminal device can determine the second area according to the area configuration information of the second area, and release the wireless bearer corresponding to the first area, establish the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area, and receive the data of the first service through the wireless bearer corresponding to the second area, which can improve the transmission efficiency and reliability of the service data.

[0028] In a possible implementation, the method further includes: determining a second network node and a second cell corresponding to the second network node according to the first indication information, the second cell being a candidate switching cell for the terminal device.

[0029] Based on the above scheme, the first network node can determine the second network node and the second cell corresponding to the second network node according to the first indication information sent by the terminal device, so as to determine the candidate switching cell of the terminal device, so that the first network node can track the area where the terminal device is located, thereby improving the reliability of the service data.

[0030] In one possible implementation, the method also includes: sending a first request message to the second network node, the first request message being used to request moving the terminal device from the first cell to the second cell, the first request message including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device.

[0031] Based on the above scheme, the first network node sends a first request message to the second network node, and the first request message is used to request to move the terminal device from the first cell to the second cell. The second network node can determine the area of ​​the terminal in the second cell according to the first request message, so that the second network node can track the area where the terminal device is located, thereby improving the reliability of the service data.

[0032] In a possible implementation manner, the method further includes: receiving area configuration information of a cell corresponding to the second network node sent by the second network node.

[0033] Based on the above solution, the first network node may receive the area configuration information of the cell corresponding to the second network node sent by the second network node to obtain the area configuration information of different areas in the cell corresponding to the second network node.

[0034] In a possible implementation manner, the method further includes: sending area configuration information within the cell corresponding to the first network node to the second network node.

[0035] Based on the above solution, the first network node can send the area configuration information of the cell corresponding to the first network device to the second network node, so that the second network node can obtain the area configuration information of different areas in the cell corresponding to the first network node.

[0036] On the third aspect, a communication method is provided, which can be executed by a network node, by a network device, or by a component in the network device (for example, a processor, a chip or a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the network device.

[0037] The method includes: receiving first request information sent by a first network node, the first request information is used to request to move a terminal device from a first cell to a second cell, the first request information includes: indication information of the first area and / or indication information of the second area, the second area is a candidate switching area for the terminal device; determining whether the terminal device moves or not to the second area based on the first request information.

[0038] Based on the above scheme, the second network node can receive the first request information sent by the first network node, and the first request information is used to request to move the terminal device from the first area to the second cell. The second network node can determine whether the terminal device moves or not to the second area based on the first request information, so as to track the area where the terminal device is located, so as to improve the reliability of the service data transmission.

[0039] In a possible implementation manner, the method further includes: sending area configuration information of the second area to the terminal device.

[0040] Based on the above scheme, the terminal device can receive the area configuration information of the second area sent by the second network node, and determine the second area within the second cell according to the area configuration information of the second area, and release the wireless bearer corresponding to the first area, and establish the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area, and receive data of the first service through the wireless bearer corresponding to the second area, which can improve the transmission efficiency and reliability of the service data.

[0041] In a possible implementation manner, the area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

[0042] In a possible implementation manner, the method further includes: sending area configuration information of a cell corresponding to the second network node to the first network node.

[0043] Based on the above solution, the second network node sends the area configuration information of the cell corresponding to the second network node to the first network node, so that the first network node obtains the area configuration information of different areas in the cell corresponding to the second network node.

[0044] In a possible implementation manner, the method further includes: receiving area configuration information within a cell corresponding to the first network node sent by the first network node.

[0045] Based on the above solution, the second network node can receive the area configuration information of the cell corresponding to the first network node sent by the first network node, so that the second network node can obtain the area configuration information of different areas in the cell corresponding to the first network node.

[0046] In a fourth aspect, a communication method is provided, which can be executed by a terminal device, or by a component in the terminal device (for example, a processor, a chip or a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the terminal device.

[0047] The method includes: sending first indication information to a first network node, the first indication information including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device.

[0048] Based on the above scheme, the terminal device can send first indication information to the first network node, and the first indication information includes indication information of the first area and / or indication information of the second area. The second area is a candidate switching area for the terminal device, so that the first network node can track the area where the terminal device is located to improve the reliability of the service data transmission.

[0049] In a possible implementation manner, the method further includes: receiving area configuration information of the second area sent by the second network node.

[0050] Based on the above scheme, the terminal device can receive the area configuration information of the second area sent by the second network node, determine the second area according to the area configuration information of the second area, release the wireless bearer corresponding to the first area, establish the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area, and receive data of the first service through the wireless bearer corresponding to the second area, which can improve the transmission efficiency and reliability of the service data.

[0051] In a possible implementation manner, the area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

[0052] In a fifth aspect, a communication method is provided, which can be executed by a network node, by a network device, or by a component in the network device (for example, a processor, a chip or a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the network device.

[0053] The method includes: receiving first indication information sent by a terminal device, the first indication information including indication information of the first area and / or indication information of a second area, the second area being a candidate switching area for the terminal device.

[0054] Based on the above scheme, the first network node can receive the first indication information sent by the terminal device, and the first indication information includes the indication information of the first area and / or the indication information of the second area. The second area is a candidate switching area for the terminal device, so that the first network node can track the area where the terminal device is located to improve the reliability of the service data transmission.

[0055] In a possible implementation, the method further includes: determining a second network node and a second cell corresponding to the second network node according to the first indication information, the second cell being a candidate switching cell for the terminal device.

[0056] Based on the above scheme, the first network node can determine the second network node and the second cell corresponding to the second network node according to the first indication information sent by the terminal device, so as to determine the candidate switching cell of the terminal device, so that the first network node can track the area where the terminal device is located, thereby improving the reliability of the service data.

[0057] In one possible implementation, the method also includes: sending a first request message to the second network node, the first request message being used to request moving the terminal device from the first cell to the second cell, the first request message including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device.

[0058] Based on the above scheme, the first network node sends a first request message to the second network node, and the first request message is used to request to move the terminal device from the first cell to the second cell. The second network node can determine the area of ​​the terminal in the second cell according to the first request message, so that the second network node can track the area where the terminal device is located, thereby improving the reliability of the service data.

[0059] In the sixth aspect, a communication method is provided, which can be executed by a network node, by a network device, or by a component in the network device (for example, a processor, a chip or a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the network device.

[0060] The method includes: receiving first request information sent by a first network node, the first request information is used to request to move a terminal device from a first cell to a second cell, the first request information includes indication information of the first area and / or indication information of the second area, the second area is a candidate switching area for the terminal device; determining whether the terminal device moves or not to the second area based on the first request information.

[0061] Based on the above scheme, the second network node can receive the first request information sent by the first network node, and the first request information is used to request to move the terminal device from the first area to the second cell. The second network node can determine whether the terminal device moves or not to the second area based on the first request information, so as to track the area where the terminal device is located, so as to improve the reliability of the service data transmission.

[0062] In a possible implementation manner, the method further includes: sending area configuration information of the second area to the terminal device.

[0063] Based on the above scheme, the second network node sends the area configuration information of the second area to the terminal device. The terminal device can determine the second area within the second cell according to the area configuration information of the second area, and release the wireless bearer corresponding to the first area, establish the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area, and receive data of the first service through the wireless bearer corresponding to the second area, which can improve the transmission efficiency and reliability of the service data.

[0064] In a possible implementation manner, the area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

[0065] In a seventh aspect, a communication device is provided, comprising: a processor, configured to execute a computer program stored in a memory, so that the communication device executes any possible implementation of the first to third aspects.

[0066] In an eighth aspect, a communication device is provided, comprising: a processor, configured to execute a computer program stored in a memory, so that the communication device executes any possible implementation of the fourth to sixth aspects.

[0067] In a ninth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program runs on a computer, the computer executes any possible implementation of the first to third aspects.

[0068] In a tenth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program runs on a computer, the computer executes any possible implementation method of the fourth to sixth aspects.

[0069] In an eleventh aspect, a computer program product is provided, which includes computer program instructions. When the computer program instructions are run on a computer, the computer executes any possible implementation of the first to third aspects.

[0070] In a twelfth aspect, a computer program product is provided, which includes computer program instructions. When the computer program instructions are run on a computer, the computer executes any possible implementation of the fourth to sixth aspects.

[0071] In a thirteenth aspect, a chip system is provided, which includes: a processor for calling and running a computer program from a memory, so that a communication device equipped with the chip system executes any possible implementation method of the first to third aspects.

[0072] In a fourteenth aspect, a chip system is provided, which includes: a processor for calling and running a computer program from a memory, so that a communication device equipped with the chip system executes any possible implementation method of the fourth to sixth aspects.

[0073] In the fifteenth aspect, a chip is provided, comprising at least one processor and a communication interface, wherein the communication interface is used to receive data and / or information and transmit the received data and / or information to the processor, and the processor processes the data and / or information to execute the communication method in any possible implementation of the first to third aspects above.

[0074] In the sixteenth aspect, a chip is provided, comprising at least one processor and a communication interface, wherein the communication interface is used to receive data and / or information and transmit the received data and / or information to the processor, and the processor processes the data and / or information to execute the communication method in any possible implementation of the fourth to sixth aspects above.

[0075] In the seventeenth aspect, a communication system is provided, which includes a terminal device, a first network node and a second network node; the terminal device is used to execute the method shown in the first aspect, the first network node is used to execute the method shown in the second aspect; the second network node is used to execute the method shown in the third aspect.

[0076] In the eighteenth aspect, a communication system is provided, which includes a terminal device, a first network node, and a second network node; the terminal device is used to execute the method shown in the fourth aspect, the first network node is used to execute the method shown in the fifth aspect; the second network node is used to execute the method shown in the sixth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 It is a schematic architecture diagram of a communication system provided in one embodiment of the present application.

[0078] Figure 2 It is a schematic architecture diagram of a communication system provided in another embodiment of the present application.

[0079] Figure 3 It is a schematic architecture diagram of a communication system provided in yet another embodiment of the present application.

[0080] Figure 4It is a schematic interaction diagram of a communication method provided by an embodiment of the present application.

[0081] Figure 5 It is a schematic interaction diagram of a communication method provided by another embodiment of the present application.

[0082] Figure 6 It is a schematic interaction diagram of a communication method provided by another embodiment of the present application.

[0083] Figure 7 It is a schematic block diagram of a communication device provided in one embodiment of the present application.

[0084] Figure 8 It is a schematic block diagram of a communication device provided in another embodiment of the present application.

[0085] Fig. 9 It is a schematic structural diagram of a terminal device provided in one embodiment of the present application.

[0086] Fig.10 It is a schematic structural diagram of a network node provided in an embodiment of the present application. DETAILED DESCRIPTION

[0087] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0088] The technical solution provided in this application can be applied to various communication systems, such as: the fifth generation (5th generation, 5G) or new radio (new radio, NR) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, etc. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6th Generation, 6G) mobile communication system. The technical solution provided in this application can also be applied to device to device (device to device, D2D) communication, machine to machine (machine to machine, M2M) communication, machine type communication (machine type communication, MTC), and Internet of things (internet of things, IoT) communication system or other communication systems. This application is not limited to this.

[0089] With the development of communication technology, the communication system will not only support traditional communication, but also support, for example, vehicle to everything (V2X) communication (also known as vehicle network communication), vehicle to vehicle (V2V) communication (also known as vehicle to vehicle communication), vehicle to infrastructure (V2I) communication (also known as vehicle to infrastructure communication), vehicle to pedestrian (V2P) communication (also known as vehicle to pedestrian communication), vehicle to network (V2N) communication (also known as vehicle to network communication). For example, the communication system can also support the next generation wireless local area network system.

[0090] The terminal device in the embodiment of the present application may be referred to as a terminal. The terminal device may be a device with wireless transceiver function. The terminal device may be mobile or fixed. The terminal device may be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it may also be deployed on the water surface (such as a ship, etc.); it may also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal device may include a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and / or a wireless terminal device in a smart home. The terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device or computing device with wireless communication function, a vehicle-mounted device, a wearable device, a terminal device in the fifth generation (5G) network, or a terminal device in the future evolved public land mobile network (PLMN), etc. The terminal device may also sometimes be referred to as user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. Optionally, the terminal device may communicate with multiple access network devices of different technologies. For example, the terminal device may communicate with an access network device supporting LTE, or with an access network device supporting 5G, or may be dual-connected with an access network device supporting LTE and an access network device supporting 5G. This application is not limited.

[0091] In the present application, the device for realizing the function of the terminal device may be the terminal device; or it may be a device capable of supporting the terminal device to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which may be installed in the terminal device or may be used in combination with the terminal device. In the technical solution provided in the present application, the technical solution provided in the present application is described by taking the device for realizing the function of the terminal device as the terminal device, and the terminal device as the UE as an example.

[0092] The network node in the embodiment of the present application may also be referred to as a network device, an access network (radio access network, RAN) node, an access network device, a RAN entity or an access node, etc., located on the network side of the above-mentioned communication system, to help the terminal device achieve wireless access, and a device with a wireless transceiver function or a chip or chip system that can be set in the device. The network node includes but is not limited to: a base station, an evolved base station (evolved NodeB, eNodeB), an access point (access point, AP), a transmission reception point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc. The network device may be a macro base station, a micro base station, a micro-micro base station or an indoor station, a small station, a balloon station, a relay station, a relay node or a donor node, or an open radio access network (openradio access network, ORAN), or a wireless controller in a centralized radio access network (centralized radio access network, CRAN) scenario.

[0093] Optionally, the RAN node may also be a server, a wearable device, a vehicle or an on-board device, etc. For example, the access network device in the V2X technology may be a road side unit (RSU). All or part of the functions of the network node in this application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The network node in this application may also be a logical node, a logical module or software that can implement all or part of the functions of a network device.

[0094] In another possible scenario, multiple RAN nodes collaborate to assist the terminal device in achieving wireless access, and different RAN nodes respectively implement part of the functions of the base station. For example, the RAN node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).

[0095] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, CU, CU-CP, CU-UP, DU and RU are described as examples in this application. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0096] The embodiment of the present application does not limit the form of the network node. The device for realizing the function of the network node can be a network device; or a device that can support the network device to realize the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0097] Figure 1 FIG. 1 shows a schematic architecture diagram of a communication system 100 provided in an embodiment of the present application. Figure 1 As shown, the communication system 100 may include at least one network node, such as Figure 1 The first network node 111 shown in the figure may be, for example, a base station; the communication system 100 may also include at least two terminal devices, for example Figure 1The terminal device 121 and the terminal device 122 shown, or, in an embodiment of the present application, the terminal device 121 and the terminal device 122 may refer to terminal devices of the same terminal device located in different areas within the first cell 131 at different times.

[0098] At present, the 5G system supports the transmission of data in a broadcast-multicast manner, that is, the data of the broadcast-multicast service sent by the network node can be received by multiple terminal devices that have subscribed to the broadcast-multicast service MBS at the same time. From the network node side, the network node sends the same service data to multiple terminal devices by using an air interface resource. Therefore, when multiple terminal devices subscribe to the same MBS, this broadcast-multicast transmission method can save air interface resources. Specifically, the terminal device will be configured with a group-radio network temporary identifier (G-RNTI). If different terminal devices subscribe to the same MBS, the different terminal devices can be configured with the same G-RNTI. When the network node sends MBS data, the G-RNTI can be used to scramble the MBS data, and the terminal device subscribed to the MBS can use the G-RNTI to descramble the MBS data, thereby realizing MBS data transmission.

[0099] For example, for services similar to the V2X (Vehicle to Everything) service, the V2X service data is related to the location of the terminal device. For example, the road information obtained by the terminal device is related to the current location of the terminal device. Therefore, for the same service, the network node can send different service data in areas of different ranges.

[0100] In an embodiment of the present application, at least one area may be divided in a cell corresponding to the network node, and the network node may send different service data of the same service to different areas in the cell, such as roadside perception information in different areas, and the roadside perception information includes but is not limited to the location and movement status of pedestrians, cars or various facilities around the terminal device. If the terminal device subscribes to the service, the service data related to the area sent by the network node may be received in the area where the terminal device is located.

[0101] The solution of the embodiment of the present application is not limited to broadcast communication or multicast communication. For the sake of convenience, the following embodiment of the present application takes multicast communication as an example for detailed description. Figure 1As shown, the coverage of the cell 131 may include two areas, namely, area 141 and area 142. Specifically, the area 141 and / or area 142 may be located in the cell 131, or may have a partial intersection with the cell 131. In different areas, the first network node 111 sends different data of the same service to the area 141 and the area 142 in a multicast manner. Correspondingly, the terminal device 121 within the area 141 and the terminal device 122 within the area 142 receive the data of the service respectively.

[0102] In the embodiments of the present application, Figure 1 As shown, the first network node 111 communicates with the terminal device 121 and the terminal device 122 through an air interface (e.g., a Uu interface). The link on the Uu interface where the terminal device 121 or the terminal device 122 sends data to the first network node 111 is called an uplink, and the link where the terminal device 121 or the terminal device 122 receives data sent by the first network node 111 is called a downlink. On the Uu interface, the terminal device 121 or the terminal device 122 and the first network node 111 transmit one or more of data and radio resource control (RRC) signaling through a radio bearer. Among them, the radio bearer used to transmit data is called a data radio bearer (DRB), and the bearer used to transmit RRC signaling is called a signaling radio bearer (SRB). A radio bearer includes a packet data convergence protocol (PDCP) entity and a radio link control (RLC) bearer. Among them, an RLC bearer includes an RLC entity and a corresponding logical channel (logical channel, LCH). The configuration of the radio bearer is the configuration of the PDCP entity, RLC entity and LCH of the radio bearer. The configuration of the radio bearer needs to be able to guarantee the QoS requirements of the services transmitted through the radio bearer. At the Uu port, the configuration of the radio bearer is configured by the network node for the terminal device.

[0103] Exemplarily, in V2X services, when a vehicle, such as terminal device 121, enters the range of area 141, a wireless bearer is established according to the MBS configuration corresponding to area 141 to receive service data. When the vehicle enters area 142 from area 141, it is necessary to first release the wireless bearer corresponding to area 141, and establish a wireless bearer corresponding to area 142 according to the MBS configuration corresponding to area 142, and then receive service data. Specifically, when terminal device 121 is in area 141, the terminal device 121 receives service data through the G-RNTI identifier corresponding to area 141. When terminal device 122 is in area 142, the terminal device 122 receives service data through the G-RNTI identifier corresponding to area 142.

[0104] In some possible implementations, Figure 2 FIG. 2 shows a schematic architecture diagram of a communication system 200 provided in another embodiment of the present application. Figure 2 As shown, the communication system 200 may include two network nodes, for example Figure 2 The first network node 111 and the second network node 112 shown in the figure may be, for example, a base station; the communication system 200 may also include at least one terminal device, for example Figure 2 The terminal device 121, the terminal device 122 and the terminal device 123 shown, or the terminal device 121, the terminal device 122 and the terminal device 123 may refer to different locations of the same terminal device in different areas at different times. The cell corresponding to the first network node 111 may be the cell 131, and the cell corresponding to the second network node 112 may be the cell 132. When the terminal device 121 moves from the cell 131 to the cell 132, that is, from the location of the terminal device 121 to the location of the terminal device 123, the area 141 corresponding to the same service where the terminal device 121 is located does not change, that is, the terminal device 121 can establish a wireless bearer according to the MBS configuration corresponding to the area 141 in the cell 131 to receive service data.

[0105] In some other possible implementations, Figure 3 FIG. 2 shows a schematic architecture diagram of a communication system 300 provided in another embodiment of the present application. Figure 3 As shown, Figure 3 As shown, the communication system 300 may include two network nodes, for example Figure 3 The first network node 111 and the second network node 112 shown in the figure may be, for example, a base station; the communication system 300 may also include at least one terminal device, for example Figure 3The terminal devices 121, 122 and 123 shown, or the terminal devices 121, 122 and 123 may refer to different locations of the same terminal device in different areas at different times. The cell corresponding to the first network node 111 may be the cell 131, and the cell corresponding to the second network node 112 may be the cell 132. When the terminal device 121 moves from the cell 131 to the cell 132, that is, from the location of the terminal device 121 to the location of the terminal device 123, the terminal device 121 switches from the area 141 to the area 143, and the area corresponding to the same service where the terminal device 121 is located changes, that is, the terminal device 121 needs to first release the wireless bearer corresponding to the area 141, and establish a wireless bearer according to the MBS configuration corresponding to the area 143 in the cell 132, and then receive the service data.

[0106] Need to explain, Figures 1 to 3 The communication systems 100 to 300 shown are only for more clearly illustrating the technical solutions of the present application and do not constitute a limitation of the present application. A person skilled in the art will appreciate that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0107] Figure 4 is a schematic interaction diagram of a communication method provided by an embodiment of the present application. Figure 4 As shown, the method 400 includes the following steps:

[0108] S401, a terminal device determines a first area where the terminal device is located in a first cell according to area configuration information corresponding to a first service.

[0109] Optionally, the first service may be a V2X service, where V2X refers to the technology and service for two-way communication and interaction between a vehicle and various entities in the surrounding environment (such as other vehicles, road facilities, pedestrians, etc.). The V2X service is an application based on vehicle networking and wireless communication technology, aiming to improve road safety, traffic efficiency and driving experience. The V2X service may include the following aspects: vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), and vehicle-to-network (V2N).

[0110] In some implementations, the area configuration information includes at least one of the following: an identification of the area, range information of the area, and a wireless network temporary identification of the area corresponding to the first service. Exemplarily, when the first service includes two areas in the cell corresponding to it, namely Figure 1 When the area 141 and area 142 in the first service are located, the area configuration information corresponding to the first service may include identifiers corresponding to the two areas and range information of the two areas. The two areas each correspond to a wireless network temporary identifier of the first service, wherein the identifier of the above area may be an identifier set for the area by a network node corresponding to the cell where the area is located; the range information of the area may be determined by a reference point set by the area in the cell corresponding to the area, such as the geographical location coordinates, or may also be determined by parameters such as the length and width of the area in the cell; the wireless network temporary identifier of the area corresponding to the first service may be a G-RNTI, which may be used to identify the temporary identity of a terminal device subscribed to the first service in the wireless network. When the network node sends data of the first service, the G-RNTI may be used to scramble the data of the first service, and the terminal device subscribed to the first service may use the G-RNTI to descramble the data of the first service, thereby realizing data transmission of the first service.

[0111] Exemplarily, in an embodiment of the present application, the area configuration information corresponding to the above-mentioned first service may be the area configuration information of all areas within the first cell, or, the area configuration information corresponding to the above-mentioned first service may also be the area configuration information of the first area within the first cell. As an example, the embodiment of the present application is not limited to this.

[0112] Exemplarily, the terminal device may determine the first area where the terminal device is located in the first cell according to the current location of the terminal device and the area configuration information corresponding to the first service.

[0113] S402, the terminal device establishes a first wireless bearer according to the bearer configuration corresponding to the first area.

[0114] Exemplarily, the terminal device may establish a first wireless bearer according to the bearer configuration corresponding to the first area, and the first wireless bearer is used to implement service data transmission between the terminal device and the first network node.

[0115] In some implementations, the correspondence between the first area and the bearer configuration includes: multiple first areas correspond to multiple bearer configurations, multiple first areas correspond to one bearer configuration, or one first area corresponds to multiple bearer configurations.

[0116] Optionally, S403, the terminal device obtains area configuration information and / or bearer configuration information corresponding to the first service.

[0117] It should be understood that the terminal device can receive the area configuration information and / or bearer configuration information corresponding to the first service from the first network node corresponding to the first cell, or the terminal device can also obtain the area configuration information and / or bearer configuration information corresponding to the first service from other network nodes. As an example, the embodiments of the present application are not limited to this.

[0118] Exemplarily, the bearer configuration information may be a multicast broadcast service radio bearer (MBS radio bearer, MRB) configuration. Optionally, the bearer configuration in the bearer configuration information corresponding to the first service may mean that all areas within the first cell use the same bearer configuration, or all areas within the first cell each correspond to a bearer configuration.

[0119] Exemplarily, the terminal device may obtain the area configuration information of all areas within the first cell, or the terminal device may also obtain the area configuration information of the first area where the terminal device is located, as an example, and this application is not limited to this.

[0120] S404, the terminal device receives data of the first service through the first wireless bearer.

[0121] Exemplarily, the terminal device may receive data of a first service from a first network node corresponding to a first cell via a first radio bearer.

[0122] Optionally, the terminal device determining the first area where the terminal device is located in the first cell according to the area configuration information corresponding to the first service further includes: the terminal device moves from the second area to the first area.

[0123] Optionally, in some implementations, before executing S402, the step further includes: S405, the terminal device releases a second radio bearer, the second radio bearer corresponds to a second area, and the second area is a candidate switching area for the terminal device.

[0124] Exemplarily, when the terminal device moves from the second area to the first area, the terminal device first releases the second radio bearer, which corresponds to the second area, and then the terminal device establishes the first radio bearer according to the bearer configuration corresponding to the first area, and receives the data of the first service through the first radio bearer. For example, when the first area and the second area both use the same bearer configuration, it is necessary to first release the radio bearer corresponding to the second area, and then establish the first radio bearer based on the original bearer configuration, or, when the first area corresponds to the first bearer configuration and the second area corresponds to the second bearer configuration, it is necessary to first release the second radio bearer, and the terminal device establishes the first radio bearer according to the first bearer configuration.

[0125] Based on the above scheme, the terminal device can determine the first area where the terminal device is located in the first cell according to the acquired area configuration information corresponding to the first service, and the terminal device establishes a first wireless bearer according to the bearer configuration corresponding to the first area, and receives data of the first service through the first wireless bearer. Compared with the existing data distribution scheme under the multicast broadcast service, the terminal device can determine the area where it is located in the first cell in real time, so as to achieve finer granularity data distribution in the first service scenario and improve the transmission efficiency of the service data.

[0126] Figure 5 FIG. 1 is a schematic interaction diagram of a communication method provided by another embodiment of the present application. Figure 5 As shown, the method 500 includes the following steps:

[0127] S501, a terminal device sends first indication information to a first network node, the first indication information including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device. Correspondingly, the first network node receives the first indication information sent by the terminal device.

[0128] Optionally, in some implementations, the first indication information further includes location information of the terminal device, and the location information of the terminal device is used to indicate the location of the terminal device in the first cell. Exemplarily, the location information of the terminal device may be the geographical location of the terminal device.

[0129] It should be understood that, in some implementations, the first indication information may also include at least one of the following information: location information of the terminal device, indication information of the first area, and indication information of the second area.

[0130] Exemplarily, when the terminal device triggers a measurement report based on the measurement configuration, the measurement report may also include the first indication information. Alternatively, the terminal device may also send the indication information of the first area and / or the indication information of the second area to the first network node in real time or periodically.

[0131] It should be understood that, before executing S501 , method 500 may further include steps S401 to S404 in the above method 400 , which will not be described in detail here for the sake of brevity.

[0132] S502: The first network node determines a second area according to first indication information.

[0133] Exemplarily, the first network node may determine the second area according to the indication information of the first area and / or the indication information of the second area in the first indication information, and the second area is the candidate switching area of ​​the terminal device. For another example, when the first indication information also includes the location information of the terminal device, the first network node may also determine the second area according to at least one of the following information: the location information of the terminal device, the indication information of the first area, and the indication information of the second area.

[0134] S503: The first network node sends the area configuration information of the second area to the terminal device. Correspondingly, the terminal device receives the area configuration information of the second area sent by the first network node.

[0135] In some implementations, the area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

[0136] Optionally, S504: The terminal device determines the second area according to the area configuration information of the second area.

[0137] Exemplarily, the terminal device may determine the second area where the terminal device is located according to the current location of the terminal device and the area configuration information of the second area.

[0138] Optionally, S505, the terminal device releases the first radio bearer, and establishes a second radio bearer according to the bearer configuration corresponding to the second area.

[0139] Exemplarily, the terminal device first releases a first radio bearer corresponding to the first area, and then the terminal device establishes a second radio bearer according to the bearer configuration corresponding to the second area.

[0140] Exemplarily, when the first area and the second area both use the same bearer configuration, it is necessary to first release the wireless bearer corresponding to the first area, and then establish the second wireless bearer based on the original bearer configuration; or, when the first area corresponds to the first bearer configuration and the second area corresponds to the second bearer configuration, it is necessary to first release the first wireless bearer, and the terminal device establishes the second wireless bearer according to the second bearer configuration.

[0141] Optionally, S506, the terminal device receives data of the first service through the second wireless bearer.

[0142] Exemplarily, the terminal device may receive data of the first service from the first network node through the second radio bearer.

[0143] Based on the above scheme, the terminal device sends a first indication message to the first network node, and the first indication message includes the indication information of the first area and / or the indication information of the second area, and the second area is a candidate switching area for the terminal device. The first network node can determine the second area according to the first indication information sent by the terminal device, and the second area is a candidate switching area for the terminal device. The first network node can send area configuration information of the second area to the terminal device, and the terminal device can determine the second area according to the area configuration information of the second area, and release the wireless bearer corresponding to the first area, and establish the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area to receive service data, which can improve the transmission efficiency and reliability of the service data and facilitate the first network node to track the area where the terminal device is located.

[0144] Figure 6 FIG. 1 is a schematic interaction diagram of a communication method provided by another embodiment of the present application. Figure 6 As shown, the method 600 includes the following steps:

[0145] Optionally, S601: A first network node sends area configuration information of a cell corresponding to the first network node to a second network node. Correspondingly, the second network node receives the area configuration information of the cell corresponding to the first network node sent by the first network node.

[0146] Exemplarily, the first network node may send the area configuration information of all areas in the cell corresponding to the first network node to the second network node.

[0147] Optionally, S602, the second network node sends area configuration information of a cell corresponding to the second network node to the first network node. Correspondingly, the first network node receives the area configuration information of the cell corresponding to the second network node sent by the second network node.

[0148] Exemplarily, the second network node may send the area configuration information of all areas in the cell corresponding to the second network node to the second network node.

[0149] It should be understood that the embodiment of the present application does not limit the sequence of the above S601 and S602.

[0150] S603, the terminal device sends first indication information to the first network node, the first indication information including indication information of the first area and / or indication information of the second area, the second area being a candidate switching area for the terminal device. Correspondingly, the first network node receives the first indication information sent by the terminal device.

[0151] Optionally, in some implementations, the first indication information further includes location information of the terminal device, and the location information of the terminal device is used to indicate the location of the terminal device in the first cell. Exemplarily, the location information of the terminal device may be the geographical location of the terminal device.

[0152] It should be understood that, in some implementations, the first indication information may also include at least one of the following information: location information of the terminal device, indication information of the first area, and indication information of the second area.

[0153] Exemplarily, when the terminal device triggers a measurement report based on the measurement configuration, the above-mentioned first indication information may also be included in the measurement report.

[0154] It should be understood that before executing S603, method 600 may further include steps S401 to S404 in the above method 400, which will not be described in detail here for the sake of brevity.

[0155] S604: The first network node determines a second network node and a second cell corresponding to the second network node according to the first indication information, and the second cell is a candidate switching cell for the terminal device.

[0156] Exemplarily, the first network node can determine the second network node and the second cell according to the indication information of the first area and / or the indication information of the second area in the first indication information, the second cell corresponds to the second network node, and the terminal device can move from the first cell to the second cell. For another example, when the first indication information also includes the location information of the terminal device, the first network node can also determine the second network node and the second cell according to at least one of the following information: the location information of the terminal device, the indication information of the first area, and the indication information of the second area.

[0157] S605, the first network node sends a first request message to the second network node, the first request message is used to request to move the terminal device from the first cell to the second cell, the first request message includes indication information of the first area and / or indication information of the second area, the second area is a candidate switching area for the terminal device. Correspondingly, the second network node receives the first request message sent by the first network node.

[0158] It should be understood that in the embodiment of the present application, the indication information of the first area is used to indicate the position of the first area in the first cell, and the indication information of the second area is used to indicate the position of the second area in the second cell.

[0159] Optionally, in some implementations, the first request information further includes location information of the terminal device, and the location information of the terminal device is used to indicate the location of the terminal device in the first cell. Exemplarily, the location information of the terminal device may be the geographical location of the terminal device.

[0160] It should be understood that, in some implementations, the first request information may also include at least one of the following information: location information of the terminal device, indication information of the first area, and indication information of the second area.

[0161] S606: The second network node determines the area to which the terminal device moves according to the first request information.

[0162] Exemplarily, the second network node determines the area to which the terminal device moves based on the indication information of the first area and / or the indication information of the second area in the first request information. For example, when the first request information also includes the location information of the terminal device, the second network node may also determine the area to which the terminal device moves based on at least one of the following information: the location information of the terminal device, the indication information of the first area, and the indication information of the second area. In the case where the second network node determines that the terminal device has not moved to the second area, the terminal device has moved from the first cell to the second cell, but the terminal device is still within the first area, that is, the terminal device can receive service data based on the wireless bearer corresponding to the first area. In the case where the second network node determines that the terminal device has moved to the second area, the terminal device has moved from the first cell to the second cell, and the terminal device moves from the first area to the second area, and the wireless bearer corresponding to the first area needs to be released first, and the terminal device establishes the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area.

[0163] S607: When the second network node determines that the terminal device has moved to the second area, the second network node sends area configuration information of the second area to the first network node. Correspondingly, the first network node receives the area configuration information of the second area sent by the second network node.

[0164] In some implementations, the area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

[0165] S608: The first network node sends the area configuration information of the second area to the terminal device. Correspondingly, the terminal device receives the area configuration information of the second area sent by the second network node.

[0166] Exemplarily, when the second network node determines that the terminal device moves to the second area, the second network node sends the area configuration information of the second area through the first network node, so that the terminal device can determine the second area according to the area configuration information of the second area.

[0167] Optionally, S609, the terminal device determines the second area according to the area configuration information of the second area.

[0168] Exemplarily, the terminal device may determine the second area where the terminal device is located according to the current location of the terminal device and the area configuration information of the second area.

[0169] Optionally, S610, the terminal device releases the first radio bearer, and establishes a second radio bearer according to the bearer configuration corresponding to the second area.

[0170] Exemplarily, the terminal device first releases the first wireless bearer corresponding to the first area, and then the terminal device establishes the second wireless bearer according to the bearer configuration corresponding to the second area received from the second network node. When the first area and the second area both use the same bearer configuration, it is necessary to first release the wireless bearer corresponding to the first area, and then establish the second wireless bearer based on the original bearer configuration, or, when the first area corresponds to the first bearer configuration and the second area corresponds to the second bearer configuration, it is necessary to first release the first wireless bearer, and the terminal device establishes the second wireless bearer according to the second bearer configuration.

[0171] Optionally, S611, the terminal device receives data of the first service through the second wireless bearer.

[0172] Exemplarily, the terminal device may receive data of the first service from the second network node through the second radio bearer.

[0173] Based on the above scheme, the second network node can receive the first request information sent by the first network node, and the first request information is used to request to move the terminal device from the first area to the second cell. The second network node can determine whether the terminal device moves to the second area or not based on the first request information. When it is determined that the terminal device moves to the second area, the second network node sends the area configuration information of the second area to the terminal device. Subsequently, the terminal device determines the second area within the second cell based on the area configuration information of the second area, releases the wireless bearer corresponding to the first area, and establishes the wireless bearer corresponding to the second area according to the bearer configuration corresponding to the second area to receive service data. This can improve the transmission efficiency and reliability of the service data, and at the same time realize real-time tracking of the area where the terminal device is located by the network node to improve the reliability of the service data transmission.

[0174] Above, combined Figures 1 to 6 The method provided by the embodiment of the present application is described in detail. Figures 7 to 10 The communication device provided in the embodiment of the present application is described in detail.

[0175] Figure 7 1 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in the figure, the communication device 10 may include a transceiver module 11 and a processing module 12.

[0176] In one possible design, the communication device 10 may correspond to the network node or terminal device in the above method embodiment.

[0177] Exemplarily, the communication device 10 may correspond to the UE or terminal device in the method 400 to the method 600 according to the embodiment of the present application, and the communication device 10 may include a method for executing Figure 4 Method 400 to Figure 6 The module of the method executed by the UE or terminal device in the method 600. In addition, each unit in the communication device 10 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes of the methods 400 to 600.

[0178] The transceiver module 11 in the communication device 10 performs the receiving and sending operations performed by the UE or terminal device in the above-mentioned method embodiments, and the processing module 12 performs operations other than the receiving and sending operations.

[0179] Exemplarily, the communication device 10 may also correspond to a network node, a network device or a base station in the method 400 to the method 600 according to the embodiment of the present application, and the communication device 10 may include a method for executing Figure 4 Method 400 to Figure 6 The module of the method executed by the network node, network device or base station in the method 600. In addition, each unit in the communication device 10 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes of the methods 400 to 600.

[0180] The transceiver module 11 in the communication device 10 performs the receiving and sending operations performed by the network node or base station in the above-mentioned method embodiments, and the processing module 12 performs operations other than the receiving and sending operations.

[0181] According to the above method, Figure 8 A schematic diagram of a communication device 20 provided in an embodiment of the present application is shown as follows: Figure 8 As shown, the device 20 may be a network node or a terminal device.

[0182] The device 20 may include a processor 21 (ie, an example of a processing module) and a memory 22. The memory 22 is used to store instructions, and the processor 21 is used to execute the instructions stored in the memory 22, so that the device 20 can implement the following Figures 4 to 5 The steps performed in the corresponding method.

[0183] Furthermore, the device 20 may also include an input port 23 (i.e., an example of a transceiver module) and an output port 24 (i.e., another example of a transceiver module). Furthermore, the processor 21, the memory 22, the input port 23, and the output port 24 may communicate with each other through an internal connection path to transmit control and / or data signals. The memory 22 is used to store a computer program, and the processor 21 may be used to call and run the computer program from the memory 22 to control the input port 23 to receive a signal, and control the output port 24 to send a signal, thereby completing the steps of the network node in the above method. The memory 22 may be integrated in the processor 21, or may be provided separately from the processor 21.

[0184] Optionally, if the communication device 20 is a communication equipment, the input port 23 is a receiver, and the output port 24 is a transmitter. The receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they may be collectively referred to as a transceiver.

[0185] Optionally, if the communication device 20 is a chip or a circuit, the input port 23 is an input interface, and the output port 24 is an output interface.

[0186] As an implementation method, the functions of the input port 23 and the output port 24 may be implemented by a transceiver circuit or a dedicated transceiver chip. The processor 21 may be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.

[0187] As another implementation method, it is possible to use a general-purpose computer to implement the communication device provided in the embodiment of the present application. That is, the program code that implements the functions of the processor 21, the input port 23, and the output port 24 is stored in the memory 22, and the general-purpose processor implements the functions of the processor 21, the input port 23, and the output port 24 by executing the code in the memory 22.

[0188] For the concepts, explanations, detailed descriptions and other steps involved in the device 20 and related to the technical solution provided in the embodiment of the present application, please refer to the description of these contents in the aforementioned method or other embodiments, which will not be repeated here.

[0189] Fig. 9 This is a schematic diagram of the structure of a communication device 30 provided in this application. For ease of explanation, Fig. 9 Only the main components of the communication device are shown. Fig. 9As shown, the communication device 30 includes a processor, a memory, a control circuit, an antenna, and an input and output device.

[0190] The processor is mainly used to process the communication protocol and communication data, as well as to control the entire terminal device, execute the software program, and process the data of the software program, for example, to support the terminal device to perform the actions described in the above-mentioned transmission precoding matrix indication method embodiment. The memory is mainly used to store software programs and data, for example, to store the codebook described in the above-mentioned embodiment. The control circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The control circuit and the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc. are mainly used to receive data input by users and output data to users.

[0191] When the communication device is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0192] Those skilled in the art will appreciate that for ease of description, Fig. 9 Only one memory and processor are shown. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiments of the present application.

[0193] As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process the communication protocol and communication data, and the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software program data. Figure 8The processor in integrates the functions of the baseband processor and the central processing unit. Those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, which are interconnected through technologies such as buses. Those skilled in the art will understand that the terminal device may include multiple baseband processors to adapt to different network standards, and the terminal device may include multiple central processing units to enhance its processing capabilities. The various components of the terminal device may be connected through various buses. The baseband processor may also be described as a baseband processing circuit or a baseband processing chip. The central processing unit may also be described as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built into the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0194] like Fig. 9 As shown, the communication device 30 includes a transceiver unit 31 and a processing unit 32. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 31 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver unit 31 may be regarded as a sending unit, that is, the transceiver unit 31 includes a receiving unit and a sending unit. Exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0195] Fig. 9 The terminal device shown can perform each action performed by the terminal device or UE in the above-mentioned methods 400 to 600. Here, in order to avoid redundancy, its detailed description is omitted.

[0196] Fig.10 A simplified schematic diagram of the structure of a network node 40 is shown. The network node includes a part 41 and a part 42. Part 41 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; part 42 is mainly used for baseband processing, controlling the network node, etc. Part 41 can generally be called a transceiver module, a transceiver, a transceiver circuit, or a transceiver, etc. Part 42 is generally the control center of the network node, and can generally be called a processing module, which is used to control the network node to perform the processing operations on the network node side in the above method embodiment.

[0197] Fig.10The transceiver module of part 41 in the figure may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency circuit, wherein the radio frequency circuit is mainly used for radio frequency processing. For example, the device used to implement the receiving function in part 41 may be regarded as a receiving module, and the device used to implement the sending function may be regarded as a sending module, that is, part 41 includes a receiving module and a sending module. The receiving module may also be called a receiver, a receiver, or a receiving circuit, etc., and the sending module may be called a transmitter, a transmitter, or a transmitting circuit, etc.

[0198] Fig.10 Part 42 in the figure may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute the program in the memory to realize the baseband processing function and the control of the network node. If there are multiple boards, each board can be interconnected to enhance the processing capability. As an optional implementation, multiple boards may share one or more processors, or multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time.

[0199] For example, in one implementation, the transceiver module of part 41 is used to execute Figures 4 to 6 Steps related to the transmission and reception of the network node or base station; Part 42 is used to perform Figures 4 to 6 Steps related to processing by a network node or base station.

[0200] It should be understood that Fig.10 This is only an example and not a limitation. The network node including the transceiver module and the processing module may not rely on Fig.10 The structure shown.

[0201] When the device 40 is a chip, the chip includes a transceiver module and a processing module, wherein the transceiver module may be an input / output circuit or a communication interface; and the processing module may be a processor or a microprocessor or an integrated circuit integrated on the chip.

[0202] The present application also provides a chip, including a processor, for calling and executing instructions stored in a memory from the memory, so that a communication device equipped with the chip executes the methods in the above examples.

[0203] The present application also provides another chip, including: an input interface, an output interface, and a processor, wherein the input interface, the output interface, and the processor are connected via an internal connection path, and the processor is used to execute the code in the memory, and when the code is executed, the processor is used to execute the method in each of the above examples. Optionally, the chip also includes a memory, and the memory is used to store computer programs or codes.

[0204] The present application also provides a processor, which is coupled to a memory and is used to execute the methods and functions involving a terminal device or a network node in any of the above embodiments.

[0205] In another embodiment of the present application, a computer program product including instructions is provided. When the computer program product is run on a computer, the method of the above embodiment is implemented.

[0206] The present application also provides a computer program. When the computer program is executed in a computer, the method of the above embodiment is implemented.

[0207] In another embodiment of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0208] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.

[0209] In an embodiment of the present application, a network node may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. Among them, the hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

[0210] The embodiments of the present application do not specifically limit the specific structure of the execution subject of the method provided in the embodiments of the present application, as long as it is possible to communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application. For example, the execution subject of the method provided in the embodiments of the present application may be a network node, or a functional module in a network node that can call and execute a program.

[0211] Various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein may encompass a computer program accessible from any computer-readable device, carrier, or medium. For example, a computer-readable medium may include, but is not limited to, a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disk (e.g., a compact disc (CD), a digital versatile disc (DVD), etc.), a smart card, and a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive, etc.).

[0212] The various storage media described herein may represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0213] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0214] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0215] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.

[0216] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0217] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0218] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0219] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0220] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0221] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0222] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0223] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, characterized in that: Applied to terminal equipment, including: Determine the first area where the terminal device is located in the first cell according to the area configuration information corresponding to the first service; A first radio bearer is established according to the bearer configuration corresponding to the first area.

2. The method according to claim 1, characterized in that The method further comprises: Obtain area configuration information and / or bearer configuration information corresponding to the first service.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Release the second radio bearer, where the second radio bearer corresponds to a second area, and the second area is a candidate switching area for the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Send first indication information to the first network node, where the first indication information includes indication information of the first area and / or indication information of the second area, and the second area is a candidate switching area for the terminal device.

5. The method according to claim 4, characterized in that The method further comprises: Receive area configuration information of the second area sent by the first network node.

6. The method according to any one of claims 1 to 5, characterized in that The area configuration information includes at least one of the following: an identifier of the area, range information of the area, and a wireless network temporary identifier of the area corresponding to the first service.

7. The method according to any one of claims 1 to 6, characterized in that The correspondence between the first area and the bearer configuration includes: a plurality of the first areas correspond to a plurality of the bearer configurations, a plurality of the first areas correspond to one bearer configuration, or one first area corresponds to a plurality of the bearer configurations.

8. A communication method, characterized in that: include: Sending area configuration information and / or bearer configuration information corresponding to the first service to the terminal device; The area configuration information includes information for determining a first area where the terminal device is located in the first cell; The bearer configuration information includes information used to establish a first radio bearer corresponding to the first area.

9. The method according to claim 8, characterized in that The method further comprises: Receive first indication information sent by the terminal device, where the first indication information includes indication information of the first area and / or indication information of the second area, and the second area is a candidate switching area for the terminal device.

10. The method according to claim 9, characterized in that The method further comprises: The second area is determined according to the first indication information.

11. The method according to claim 10, characterized in that The method further comprises: Sending the area configuration information of the second area to the terminal device.

12. The method according to claim 9, characterized in that The method further comprises: A second network node and a second cell corresponding to the second network node are determined according to the first indication information, and the second cell is a candidate switching cell for the terminal device.

13. The method according to claim 12, characterized in that The method further comprises: A first request message is sent to the second network node, where the first request message is used to request to move the terminal device from the first cell to the second cell, and the first request message includes indication information of the first area and / or indication information of the second area, where the second area is a candidate switching area for the terminal device.

14. The method according to any one of claims 12 or 13, characterized in that The method further comprises: Receive area configuration information of a cell corresponding to the second network node sent by the second network node.

15. The method according to any one of claims 12 to 14, characterized in that The method further comprises: Sending area configuration information within the cell corresponding to the first network node to the second network node.

16. A communication method, characterized in that: include: receiving first request information sent by a first network node, where the first request information is used to request to move a terminal device from a first cell to a second cell, where the first request information includes: indication information of the first area and / or indication information of the second area, where the second area is a candidate switching area for the terminal device; It is determined whether the terminal device moves to the second area or not according to the first request information.

17. The method according to claim 16, characterized in that When the terminal device moves to the second area, the method further includes: Sending the area configuration information of the second area to the terminal device.

18. The method according to claim 17, characterized in that The area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

19. The method according to any one of claims 16 to 18, characterized in that The method further comprises: Sending area configuration information of a cell corresponding to the second network node to the first network node.

20. The method according to any one of claims 16 to 18, characterized in that The method further comprises: Receive area configuration information of a cell corresponding to the first network node sent by the first network node.

21. A communication method, characterized in that: Applied to terminal equipment, including: Send first indication information to the first network node, where the first indication information includes indication information of the first area and / or indication information of the second area, and the second area is a candidate switching area for the terminal device.

22. The method according to claim 21, characterized in that The method further comprises: Receive area configuration information of the second area sent by the second network node.

23. The method according to claim 22, characterized in that The area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

24. A communication method, characterized in that: include: Receive first indication information sent by a terminal device, where the first indication information includes indication information of the first area and / or indication information of a second area, and the second area is a candidate switching area for the terminal device.

25. The method according to claim 24, characterized in that The method further comprises: A second network node and a second cell corresponding to the second network node are determined according to the first indication information, and the second cell is a candidate switching cell for the terminal device.

26. The method according to claim 25, characterized in that The method further comprises: A first request message is sent to the second network node, where the first request message is used to request to move the terminal device from the first cell to the second cell, and the first request message includes indication information of the first area and / or indication information of the second area, where the second area is a candidate switching area for the terminal device.

27. A communication method, characterized in that: include: receiving first request information sent by a first network node, where the first request information is used to request to move a terminal device from a first cell to a second cell, where the first request information includes indication information of the first area and / or indication information of the second area, where the second area is a candidate switching area for the terminal device; It is determined whether the terminal device moves to the second area or not according to the first request information.

28. The method according to claim 27, characterized in that When the terminal device moves to the second area, the method further includes: Sending the area configuration information of the second area to the terminal device.

29. The method according to claim 28, characterized in that The area configuration information of the second area includes an identifier of the second area, range information of the second area, and a wireless network temporary identifier of the second area corresponding to the first service.

30. A communication device, characterized in that: The method comprises a processing circuit and an input / output interface, wherein the input / output interface is used to input and / or output signals, and the processing circuit is used to execute the method according to any one of claims 1 to 7, or the processing circuit is used to execute the method according to any one of claims 8 to 15, or the processing circuit is used to execute the method according to any one of claims 16 to 20, or the processing circuit is used to execute the method according to any one of claims 21 to 23, or the processing circuit is used to execute the method according to any one of claims 24 to 26, or the processing circuit is used to execute the method according to any one of claims 27 to 29.

31. A communication device, characterized in that: The method comprises at least one module, wherein the at least one module is used to execute the method as claimed in any one of claims 1 to 7, or the at least one module is used to execute the method as claimed in any one of claims 8 to 15, or the at least one module is used to execute the method as claimed in any one of claims 16 to 20, or the at least one module is used to execute the method as claimed in any one of claims 21 to 23, or the at least one module is used to execute the method as claimed in any one of claims 24 to 26, or the at least one module is used to execute the method as claimed in any one of claims 27 to 29.

32. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program or instructions, and when the computer program or the instructions are executed on a computer, the method described in any one of claims 1 to 7 is executed, or the method described in any one of claims 8 to 15 is executed, or the method described in any one of claims 16 to 20 is executed, or the method described in any one of claims 21 to 23 is executed, or the method described in any one of claims 24 to 26 is executed, or the method described in any one of claims 27 to 29 is executed.

33. A computer program product, characterized in that Comprising computer program code, which, when executed, implements the method as claimed in any one of claims 1 to 7, or implements the method as claimed in any one of claims 8 to 15, or implements the method as claimed in any one of claims 16 to 20, or implements the method as claimed in any one of claims 21 to 23, or implements the method as claimed in any one of claims 24 to 26, or implements the method as claimed in any one of claims 27 to 29.

34. A chip, characterized in that: It includes at least one processor and a communication interface, wherein the communication interface is used to receive data and / or information and transmit the received data and / or information to the processor, and the processor processes the data and / or information to execute the communication method as described in any one of claims 1 to 20, or to execute the communication method as described in any one of claims 21 to 29.

35. A communication system, characterized in that: The communication system comprises a terminal device, a first network node and a second network node; The terminal device is used to execute the communication method according to any one of claims 1 to 7, or the terminal device is used to execute the communication method according to any one of claims 21 to 23; or The first network node is used to perform the communication method according to any one of claims 8 to 15, or the first network node is used to perform the communication method according to any one of claims 24 to 26; or The second network node is used to execute the communication method according to any one of claims 16 to 20, or the second network node is used to execute the communication method according to any one of claims 27 to 29.

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