A communication method and device

Abstract

A communication method and apparatus, the method comprising: a first core network device generates first information, and sends the first information to a first access network device, the first information is used to indicate the service type and / or service priority of a first service, the first service is a service of a first terminal device in an RRC inactive state, and the first access network device is an anchor access network device of the first terminal device. In this way, the first core network device sends the first information used to indicate the service type and / or service priority of the first service of the first terminal device to the first access network device, so that the first access network device can carry the service type and / or service priority of the first service when paging the first terminal device, thereby facilitating the first terminal device to determine whether to process the first service, improving the flexibility of service processing, and avoiding the impact between services of different service types or service priorities.

Description

Technical Field

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

[0002] At present, the fifth generation mobile communication technology (5th generation, 5G) new radio (new radio, NR) system has introduced a new radio resource control (RRC) connection state, RRC inactive state (also known as RRC_INACTIVE). In the RRC inactive state, when a service arrives on the network side, the data or signaling will directly reach the access network device, thereby triggering the access network device to page the terminal device.

[0003] In the prior art, when an access network device pages a terminal device in an RRC inactive state, the paging reason value cannot be carried in the paging message. This makes it impossible for the terminal device to decide whether to respond to the received paging message based on the paging reason value. For a terminal device that includes two subscriber identification modules (SIM) cards but has only a single sending capability, the paging message does not include the paging reason value, which may cause a low-priority service on a certain SIM card to affect a high-priority service on another SIM card. For example, when a terminal device is performing a service on a certain SIM card and receives a paging message from the access network device for another SIM card, the paging message does not include the paging reason value, which may cause the terminal device to be unable to respond to the high-priority service on the other SIM card in a timely manner. Summary of the invention

[0004] The embodiments of the present application provide a communication method and apparatus for carrying a paging cause value in a paging message when paging a terminal device in an RRC inactive state.

[0005] In a first aspect, an embodiment of the present application provides a communication method, which can be executed by a first core network device, the method comprising: the first core network device generates first information, the first information being used to indicate a service type and / or service priority of a first service, the first service being a service of a first terminal device in an inactive state of radio resource control RRC; the first core network device sends the first information to a first access network device, the first access network device being an anchor access network device of the first terminal device.

[0006] By adopting the technical solution provided in the embodiment of the present application, for a first terminal device in an RRC inactive state, a first core network device may send first information indicating a service type and / or service priority of a first service of the first terminal device to a first access network device. The first access network device is an anchor access network device of the first terminal device. In this way, when the first access network device pages the first terminal device, it can carry information on the service type and / or service priority of the first service, thereby facilitating the first terminal device to determine whether to process the first service and improving communication performance.

[0007] In a possible design, the first information is included in a first message, and the first message also includes non-access layer NAS information, where the NAS information is used to indicate the first service.

[0008] In a second aspect, an embodiment of the present application provides a communication method, which can be executed by a first access network device, the method comprising: the first access network device receives first information from a first core network device, the first information being used to indicate a service type and / or service priority of a first service, the first service being a service of a first terminal device in an inactive state of radio resource control RRC; the first access network device sends a first paging message to the first terminal device, the first paging message including the service type and / or service priority of the first service.

[0009] By adopting the technical solution provided in the embodiment of the present application, for the first terminal device in the RRC inactive state, the first access network device can receive the first information indicating the service type and / or service priority of the first service of the first terminal device from the first core network device, and then send a paging message to the first terminal device carrying the service type and / or service priority of the first service. In this way, the service type and / or service priority of the first service can be equivalent to the reason value of paging the first terminal device, which enables the first terminal device to determine whether to process the first service according to the service type and / or service priority of the first service, thereby improving the flexibility of service processing and avoiding mutual influence between services of different types or priorities.

[0010] In one possible design, the first access network device is an anchor access network device of the first terminal device.

[0011] In one possible design, the first access network device may also send a second message to the second access network device, the second message including the service type and / or service priority of the first service, the second message is used to instruct the second access network device to send a second paging message to the first terminal device, the second paging message including the service type and / or service priority of the first service, and the second access network device and the first access network device are located in the same RNA area.

[0012] By adopting the technical solution provided in the embodiment of the present application, since the first terminal device is in an RRC inactive state, the first access network device can initiate RNA paging for the first terminal device, that is, other access network devices in the RNA area corresponding to the first terminal device will also send paging messages to the first terminal device. Therefore, the first access network device can also send a second message to a second access network device located in the same RNA area, carrying the service type and / or service priority of the first service in the second message, and instructing the second access network device to send a paging message to the first terminal device, so that the paging message sent by the second access network device also includes the service type and / or service priority of the first service, thereby facilitating the first terminal device to determine whether to process the first service based on the service type and / or service priority of the first service.

[0013] In one possible design, the first information is included in a first message, which also includes non-access layer NAS information, and the NAS information is used to indicate the first service; the first access network device can also send the NAS information to the first terminal device; or, the first access network device can also send the NAS information to the second access network device.

[0014] In a third aspect, an embodiment of the present application provides a communication method, which can be executed by a first terminal device, the method comprising: the first terminal device receives a paging message from an access network device, the paging message including a service type and / or service priority of a first service, and the first terminal device is in an inactive state of radio resource control RRC; the first terminal device determines whether to process the first service based on the service type and / or service priority of the first service.

[0015] By adopting the technical solution provided in the embodiment of the present application, when the first terminal device is in an RRC inactive state, the paging message received by the first terminal device from the first access network device may include the service type and / or service priority of the first service. The service type and / or service priority of the first service may be equivalent to the reason value of paging the first terminal device. This enables the first terminal device to determine whether to process the first service based on the service type and / or service priority of the first service, thereby improving the flexibility of service processing and avoiding mutual influence between services of different types or priorities.

[0016] In one possible design, the first terminal device determines whether to process the first service based on the service priority of the first service, which may include: if the first terminal device is processing the second service and the service priority of the first service is higher than the priority of the second service, the first terminal device suspends the second service, the first service is associated with the first identifier of the first terminal device, and the second service is associated with the second identifier of the first terminal device.

[0017] In this way, it can be seen that the first terminal device can determine whether to process the first service based on the service priority of the first service and the service priority of the second service being processed, and determine to process the first service when the service priority of the first service is higher than the service priority of the second service, thereby avoiding the technical problem that the first terminal device is processing a low-priority service and cannot respond to the incoming high-priority service in time.

[0018] In one possible design, the first terminal device determines whether to process the first service based on the service type of the first service, which may include: if the first terminal device is performing a second service, the first terminal device sends a prompt message, where the prompt message is used to indicate the service type of the first service, the first service is associated with a first identifier of the first terminal device, and the second service is associated with a second identifier of the first terminal device; the first terminal device obtains response information to the prompt message, and determines whether to process the first service based on the response information.

[0019] Thus, the first terminal device can also determine whether to process the first service based on the service type of the first service and the service type of the second service being processed, combined with the acquired response information, thereby effectively improving the flexibility of service processing and improving user experience.

[0020] In one possible design, if the first terminal device determines to process the first service, the first terminal device may also receive non-access layer NAS information from the access network device, where the NAS information is used to indicate the first service.

[0021] In a fourth aspect, an embodiment of the present application provides another communication method, which can be executed by a first core network device, and the method includes: the first core network device receives a transmission suspension request message from a first terminal device, the transmission suspension request message includes a second identifier of the first terminal device, and the transmission suspension request message is used to request to suspend a second service of the first terminal device, and the second service is associated with the second identifier of the first terminal device; the first core network device sends a first indication message to a third access network device, and the first indication message is used to indicate the release of the radio resource control RRC state associated with the second identifier of the first terminal device to an RRC idle state or an RRC inactive state.

[0022] By adopting the technical solution provided in the embodiment of the present application, when the first terminal device needs to suspend the second service associated with the second identifier, the first core network device can receive a transmission suspension request message from the first terminal device, and instruct the third access network device to release the RRC state associated with the first terminal device and the second identifier to the RRC idle state or the RRC inactive state, thereby suspending the second service associated with the second identifier of the first terminal device and preventing the first terminal device from continuing to receive data of the second service.

[0023] In one possible design, the first core network device may also send a second indication message to the second core network device, where the second indication message is used to instruct the second core network device to stop sending data of the second service to the third access network device. In this way, the second core network device can be prevented from continuing to send data of the second service to the third access network device, and the second service can be suspended from the network side.

[0024] In one possible design, the first core network device may also send a transmission pause response message to the first terminal device, where the transmission pause response message includes a second identifier, and the transmission pause response message is used to indicate that the second service has been suspended.

[0025] In a fifth aspect, an embodiment of the present application provides another communication method, which can be executed by a first terminal device, and the method includes: the first terminal device sends a transmission pause request message to a first core network device, the transmission pause request message includes a second identifier of the first terminal device, and the transmission pause request message is used to request suspension of a second service of the first terminal device, and the second service is associated with the second identifier of the first terminal device; the first terminal device receives a transmission pause response message sent by the first core network device, and the transmission pause response message is used to indicate that the second service has been suspended.

[0026] By adopting the technical solution provided in the embodiment of the present application, when the first terminal device needs to suspend the second service associated with the second identifier, the first terminal device can send a transmission pause request message to the first core network device, and receive a transmission pause response message sent by the first core network device, thereby suspending the second service associated with the second identifier of the first terminal device.

[0027] In one possible design, the first terminal device may also receive a first paging message from the first access network device, the first paging message including the service type and / or service priority of the first service, the first service is associated with the first identifier of the first terminal device, and the radio resource control RRC state associated with the first identifier of the first terminal device is an RRC inactive state; the terminal device determines that the second service needs to be suspended based on the service type and / or service priority of the first service. In this way, the first terminal device may determine that the second service needs to be suspended upon receiving the first paging message and determining that the first service needs to be processed based on the service type and / or service priority of the first service in the first paging message, and then send a transmission suspension request message to the first core network device.

[0028] In one possible design, the first terminal device may also receive an RRC connection release message from the third access network device, and the RRC connection release message is used to release the RRC state associated with the first terminal device and the second identifier to an RRC idle state or an RRC inactive state. In this way, the first terminal device can be prevented from continuing to receive data of the second service.

[0029] In the sixth aspect, an embodiment of the present application provides another communication method, which can be executed by a first core network device, and the method includes: the first core network device receives a third indication information from a first terminal device, and the third indication information is used to indicate a first identifier and a second identifier of the first terminal device; the first core network device determines that a first service of the first terminal device has arrived, and the first service is associated with the first identifier of the first terminal device, and the radio resource control RRC state associated with the first identifier of the first terminal device is an RRC inactive state or an RRC idle state; the first core network device determines whether to process the first service based on the service type or service priority of the first service and the service type or service priority of the second service, and the second service is associated with the second identifier of the first terminal device.

[0030] By adopting the technical solution provided in the embodiment of the present application, the first core network device can receive the third indication information indicating the first identifier and the second identifier of the first terminal device from the first terminal device, so that the first core network device can associate or bind the first identifier and the second identifier of the first terminal device from the network side. Furthermore, when the first core network device determines that the first service associated with the first identifier of the first terminal device has arrived, the first core network device can determine whether to process the first service based on the service type or service priority of the first service and the service type or service priority of the second service associated with the second identifier that the first terminal device is currently performing, thereby avoiding the first terminal device from judging whether to process the first service by itself, effectively improving the service processing efficiency and reducing the power consumption of the terminal device.

[0031] In one possible design, the third indication information includes capability information of the first terminal device, and the capability information is used to indicate that the transmission capability of the first terminal device is single transmission. Using the technical solution of the embodiment of the present application, the first core network device can determine whether the first terminal device processes the first service according to the service type or service priority of the first service and the service type or service priority of the second service performed by the first terminal device when the first terminal device has a single transmission capability.

[0032] In one possible design, if the first core network device determines to process the first service, the first core network device may also send a fourth indication message to the access network device, and the fourth indication message is used to instruct the access network device to page the first terminal device for the first identifier. It can be seen that if the first core network device determines to process the first service, the first core network device may page the first terminal device so that the RRC state associated with the first identifier of the first terminal device is converted to an RRC connected state.

[0033] In one possible design, if the first core network device determines to process the first service, the first core network device may also send a first indication message to the access network device, where the first indication message is used to indicate the release of the RRC state associated with the first terminal device and the second identifier to the RRC idle state or the RRC inactive state; and / or, the first core network device may also send a second indication message to the second core network device, where the second indication message is used to indicate the second core network device to stop sending data of the second service to the access network device. It can be seen that if the first core network device determines to process the first service, the first core network device may also trigger the process of suspending the second service associated with the first terminal device and the second identifier.

[0034] In a possible design, the first core network device may also receive service priority information from the first terminal device, where the service priority information includes the priority of at least one service type of the first terminal device. In this way, different terminal devices may set different service priorities for services of different service types, thereby effectively improving the flexibility of service processing and improving user experience.

[0035] In the seventh aspect, an embodiment of the present application provides another communication method, which can be executed by a first terminal device, and the method includes: the first terminal device sends a third indication information to the first core network device, and the third indication information is used to indicate the first identifier and the second identifier of the first terminal device; the first terminal device receives data of a second service from an access network device, and the second service is associated with the second identifier of the first terminal device; the first terminal device receives a paging message from the access network device, and the paging message includes the first identifier, and the radio resource control RRC state associated with the first identifier of the first terminal device is an RRC inactive state; the first terminal device suspends the second service, and receives data of the first service from the access network device, and the first service is associated with the first identifier of the first terminal device, and the priority of the first service is higher than the priority of the second service.

[0036] By adopting the technical solution provided in the embodiment of the present application, the first terminal device can send a third indication information indicating the first identifier and the second identifier of the first terminal device to the first core network device, so that the first core network device associates or binds the first identifier and the second identifier of the first terminal device from the network side. Furthermore, when the first core network device determines that the first service associated with the first identifier of the first terminal device has arrived, the first core network device can determine whether to process the first service based on the service type or service priority of the first service and the service type or service priority of the second service associated with the second identifier that the first terminal device is currently performing, thereby avoiding the first terminal device from judging whether to process the first service by itself, effectively improving service processing efficiency, and reducing power consumption of the terminal device.

[0037] In one possible design, the third indication information includes capability information of the first terminal device, and the capability information is used to indicate that the transmission capability of the first terminal device is single transmission. By adopting the technical solution of the embodiment of the present application, the first terminal device can notify the first core network device of its single transmission capability, so that the first core network device determines whether the first terminal device processes the first service according to the service type or service priority of the first service and the service type or service priority of the second service performed by the first terminal device when the first terminal device has the single transmission capability.

[0038] In one possible design, the first terminal device may also receive an RRC connection release message from the access network device, and the RRC connection release message is used to release the RRC state associated with the first terminal device and the second identifier to an RRC idle state or an RRC inactive state. It can be seen that if the first core network device determines to process the first service, the first core network device may suspend the second service associated with the first terminal device and the second identifier, and release the RRC state associated with the first terminal device and the second identifier from an RRC connected state to an RRC idle state or an RRC inactive state.

[0039] In a possible design, the first terminal device may also send service priority information to the first core network device, where the service priority information includes the priority of at least one service type of the first terminal device. In this way, different terminal devices may set different service priorities for services of different service types, thereby effectively improving the flexibility of service processing and improving user experience.

[0040] In an eighth aspect, an embodiment of the present application provides a communication device, which may have the function of implementing the first aspect or any possible design of the first aspect, or have the function of implementing the fourth aspect or any possible design of the fourth aspect, or have the function of implementing the sixth aspect or any possible design of the sixth aspect. The communication device can be a network element AMF in the core network, or it can also be other network functions in the core network with access and mobility management functions. The above-mentioned network element or network function can be a network element in a hardware device, or it can be a software function running on dedicated hardware, or it can be a virtualization function instantiated on a platform (for example, a cloud platform), and the hardware or software or virtualization function includes one or more modules corresponding to the above-mentioned functions.

[0041] The communication device also has the function of implementing the third aspect or any possible design of the third aspect, or has the function of implementing the fifth aspect or any possible design of the fifth aspect, or has the function of implementing the seventh aspect or any possible design of the seventh aspect. The communication device can be a terminal device, such as a handheld terminal device, a vehicle-mounted terminal device, etc., or a device included in the terminal device, such as a chip, or a device including a terminal device. The function of the first terminal device can be implemented by hardware, or by hardware executing corresponding software, and the hardware or software includes one or more modules corresponding to the above functions.

[0042] The communication device may also have the function of implementing the access network device in the second aspect or any possible design of the second aspect. The communication device may be an access network device, such as a base station, or may be a device included in the access network device, such as a chip. The functions of the access network device may be implemented by hardware, or by hardware executing corresponding software, and the hardware or software may include one or more modules corresponding to the functions.

[0043] In one possible design, the structure of the communication device includes a processing module and a transceiver module, wherein the processing module is configured to support the communication device to perform any one of the first to seventh aspects or the corresponding function in any one of the designs of any one of the aspects. The transceiver module is used to support communication between the communication device and other communication devices. For example, when the communication device is a first core network device, it can send first information indicating a service type and / or service priority of a first service to a first access network device. The communication device may also include a storage module, which is coupled to the processing module and stores program instructions and data necessary for the communication device. As an example, the processing module may be a processor, the communication module may be a transceiver, and the storage module may be a memory. The memory may be integrated with the processor or may be separately provided from the processor, which is not limited in the present application.

[0044] In another possible design, the structure of the communication device includes a processor and may also include a memory, the processor is coupled to the memory, and can be used to execute computer program instructions stored in the memory, so that the communication device performs any one of the first to seventh aspects above or any possible design of any one of the aspects. Optionally, the communication device also includes a communication interface, and the processor is coupled to the communication interface. When the communication device is a terminal device, the communication interface can be a transceiver or an input / output interface; when the communication device is a chip included in the terminal device, the communication interface can be an input / output interface of the chip. Optionally, the transceiver can be a transceiver circuit, and the input / output interface can be an input / output circuit.

[0045] In the ninth aspect, an embodiment of the present application provides a chip system, comprising: a processor, the processor is coupled to a memory, the memory is used to store programs or instructions, when the program or instructions are executed by the processor, the chip system implements any aspect of the first to seventh aspects above or any possible design method of any aspect.

[0046] Optionally, the chip system further includes an interface circuit, which is used to receive code instructions and transmit them to the processor.

[0047] Optionally, the processor in the chip system may be one or more. The processor may be implemented by hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc. When implemented by software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

[0048] Optionally, the memory in the chip system may be one or more. The memory may be integrated with the processor or may be separately provided with the processor, which is not limited in the present application. Exemplarily, the memory may be a non-transient processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip or may be provided on different chips. The present application does not specifically limit the type of memory and the arrangement of the memory and the processor.

[0049] In the tenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer-readable instructions are stored. When a computer reads and executes the computer-readable instructions, the computer executes the method in any one of the first to seventh aspects above or any possible design of any one of the aspects.

[0050] In the eleventh aspect, an embodiment of the present application provides a computer program product. When a computer reads and executes the computer program product, the computer executes the method in any aspect of the first to seventh aspects or any possible design of any aspect.

[0051] In a twelfth aspect, an embodiment of the present application provides a communication system, the communication system comprising the first core network device, the first access network device and the first terminal device described in the above aspects. Optionally, the communication system may also include a second core network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of a network architecture of a communication system applicable to an embodiment of the present application;

[0053] Figure 2 A flow chart of a communication method provided in an embodiment of the present application;

[0054] Figure 3 A flowchart of another communication method provided in an embodiment of the present application;

[0055] Figure 4 A flowchart of another communication method provided in an embodiment of the present application;

[0056] Figure 5 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0057] Figure 6 Another structural schematic diagram of a communication device provided in an embodiment of the present application;

[0058] Figure 7 A schematic diagram of the structure of another communication device provided in an embodiment of the present application;

[0059] Figure 8 Another structural schematic diagram of another communication device provided in an embodiment of the present application;

[0060] Fig. 9 A schematic diagram of the structure of another communication device provided in an embodiment of the present application;

[0061] Fig.10 Another structural schematic diagram of yet another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0063] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WIMAX) communication system, fifth generation (5G) system or new radio (NR), or applied to future communication systems or other similar communication systems.

[0064] Please refer to Figure 1 , is a schematic diagram of a network architecture of a communication system applicable to an embodiment of the present application. The communication system 100 includes a core network device 101, an access network device 102, a terminal device 103, a terminal device 104, a terminal device 105, a terminal device 106, a terminal device 107, and a terminal device 108. The access network device 102 can communicate with at least one terminal device (such as the terminal device 103) via an uplink (UL) and a downlink (DL).

[0065] The core network device 101 may include an access and mobility management function (core access and mobility management function, AMF) and / or a user plane function (user plane function, UPF). Among them, AMF is mainly used for access management and mobility management of terminal equipment, such as user equipment (user equipment, UE) registration, UE mobility management, NAS connection, access authentication and authorization, and providing transmission for UE and SMF. UPF is mainly used for service processing in the user plane, such as data packet routing and transmission, packet detection, service usage reporting, quality of service (quality of service, QoS) processing, legal monitoring, uplink packet detection, downlink data packet storage, etc. The core network device 101 may also include other network elements or network functions, which are not limited in this application. Moreover, the above-mentioned network elements or network functions can be network elements in hardware devices, software functions running on dedicated hardware, or virtualization functions instantiated on a platform (for example, a cloud platform), which are also not limited in this application.

[0066] The access network device 102 (also known as a radio access network (RAN) device) is a device that provides wireless communication functions for a terminal. The access network device can be used to convert received air frames to Internet Protocol (IP) packets and act as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The access network device can also coordinate the attribute management of the air interface. The access network device includes, but is not limited to: the next generation base station (g nodeB, gNB) in 5G, 6G or even 7G, evolved node B (evolved node B, eNB), radio network controller (radio network controller, RNC), node B (node ​​B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (e.g., home evolved nodeB, or home node B, HNB), baseband unit (baseBand unit, BBU), transmission point (transmitting and receiving point, TRP), transmission point (transmitting point, TP), mobile switching center, etc.

[0067] It should be understood that the access network equipment corresponds to different equipment in different systems. For example, in the fourth generation mobile communication technology (the 4 thIn the 4G generation, it can correspond to eNB in ​​the 5G system, and in the 5G system it can correspond to the access network equipment in 5G, such as gNB. The technical solution provided in the embodiment of the present application can also be applied to future mobile communication systems, such as 6G or 7G systems, so Figure 1 The network equipment in the present invention may also correspond to the access network equipment in the future mobile communication system.

[0068] The terminal equipment (also called UE) is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal can be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The terminal equipment can be used for but not limited to 5G, 6G or even 7G communication systems.

[0069] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices or smart wearable devices, etc., which are a general term for the application of wearable technology to intelligently design and develop wearable devices for daily wear, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-size, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0070] The terminal device in the embodiment of the present application can also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into the vehicle as one or more components or units. The vehicle can implement the method of the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0071] The terminal device in the embodiment of the present application may also be a terminal device with a dual-SIM dual-standy (DSDS) function. The dual-SIM dual-standby means that two SIM cards can be inserted into a terminal device at the same time, and both SIM cards can work normally. Among them, the two SIM cards can belong to the same operator or different operators, and can also belong to the same communication standard or different communication standards, which is not limited by the present application. According to the different transceiver capabilities of the terminal device, the terminal device can be divided into the following three types:

[0072] 1) Dual RX / Tx terminal equipment means that the terminal equipment has two receiving circuits and two transmitting circuits, and can simultaneously receive and send data corresponding to two SIM cards.

[0073] 2) Dual Rx / Single Tx terminal equipment refers to a terminal equipment with two receiving circuits and one transmitting circuit. It can receive data from two SIM cards at the same time, but can only send data from one SIM card at the same time.

[0074] 3) Single Rx / Tx terminal equipment refers to a terminal equipment with one receiving circuit and one transmitting circuit, which can only receive and send data corresponding to one SIM card at the same time.

[0075] It should be understood that there may be multiple access network devices in the communication system 100, each of which can provide services for multiple terminal devices. The embodiment of the present application does not limit the number of access network devices and terminal devices in the communication system. Figure 1 The access network device in the embodiment of the present application can implement the technical solution provided by the embodiment of the present application, as well as some terminal devices or each terminal device in all terminal devices in the plurality of terminal devices. Figure 1 The terminal devices in the example may be different types of terminal devices, for example, mobile phones, smart water meters, electric meters and other massive machine type communication (mMTC) terminal devices in the Internet of Things. Figure 1 The various types of terminal devices shown in are only some examples, and it should be understood that the terminal devices in the embodiments of the present application are not limited to these.

[0076] It should also be understood that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. "Multiple" refers to two or more. In view of this, in the embodiments of the present application, "multiple" can also be understood as "at least two". "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and there is no limit on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A and B and C can be included. Similarly, the understanding of descriptions such as "at least one" is similar. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0077] Unless otherwise specified, the embodiments of the present application mention ordinal numbers such as "first" and "second" for distinguishing between multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects, and the descriptions of "first" and "second" do not limit the objects to be different.

[0078] Please refer to Figure 2 , is a flow chart of a communication method provided in an embodiment of the present application, the method may include the following steps S201 to S206:

[0079] Step S201: A first core network device generates first information, where the first information is used to indicate a service type and / or service priority of a first service.

[0080] The first core network device may generate the first information when determining that the first service of the first terminal device arrives at the core network or after arriving at the core network. The first service arriving at the core network may mean arriving at the first core network device or the second core network device. The first service is a service of the first terminal device, and the first terminal device is currently in an RRC inactive state. For example, the first service may be a voice service, a video service, a multimedia service, a data service, etc. of the first terminal device. It should be understood that the embodiments of the present application do not specifically limit the service type of the service of the terminal device involved. The first service may also be other types of services, and the second service mentioned later is similar.

[0081] Specifically, the first information may be included in a first message, and the first message may be used to instruct the first access network device to page the first terminal device. That is, after generating the first information, the first core network device may carry the first information in the first message and send it to the first access network device. That is, step S202 may also be that the first core network device sends a first message to the first access network device, and the first message includes the first information. The first message may also include non-access stratum (NAS) information for indicating the first service. The first message may be called a first paging indication message, or may have other names, which are not limited in the present application.

[0082] In one possible design, the first core network device may be an AMF.

[0083] Step S202: The first core network device sends first information to the first access network device, where the first access network device is an anchor access network device of the first terminal device.

[0084] The anchor access network device refers to the access network device that the first terminal device accesses before entering the RRC connected state. In the embodiment of the present application, the first terminal device is in the RRC connected state before entering the RRC inactive state. Therefore, the anchor access network device can also be understood as the access network device that the first terminal device accessed when it was in the RRC connected state the last time. For example, if the access network device is a base station, the first access network device can be the anchor base station of the first terminal device.

[0085] Step S203: The first access network device receives first information from the first core network device.

[0086] Step S204: The first access network device sends a first paging message to the first terminal device, where the first paging message includes a service type and / or service priority of the first service.

[0087] It should be noted that when the first terminal device last converted from the RRC connected state to the RRC inactive state, the first access network device may also send an RRC connection release message or an RRC connection suspension message to the first terminal device, and the RRC connection release message or the RRC connection suspension message may include information for indicating the first RNA area. The first RNA area is used to support the mobility of the first terminal device in the RRC inactive state, and the first RNA area may specifically be a first radio access network notification area (RAN-based notification area, RNA). After the first terminal device enters the RRC inactive state, when the first terminal device moves within the first RNA area and a cell reselection occurs, the reserved transmission resources or transmission resource pool can continue to be used.

[0088] Taking into account that the first terminal device is currently in an RRC inactive state, the first access network device may also send a second message to the second access network device, and the second message includes information for indicating the service type and / or service priority of the first service, for example, it may be the first information. The second message is used to instruct the second access network device to send a second paging message to the first terminal device, and the second paging message includes information for indicating the service type and / or service priority of the first service, for example, it may also be the first information. The second message may be called a second paging indication message, or may have other names, which are not limited in the present application. It should be understood that the second access network device and the first access network device are located in the same RNA area. That is, the second access network device may be an access network device other than the first access network device in the first RNA area corresponding to the first terminal device.

[0089] In an embodiment of the present application, the second access network device may be one or more. That is, after receiving the first message from the first core network device, the first access network device may send a second message to one or more other access network devices in the first RNA area, and the second message includes first information for indicating the service type and / or service priority of the first service, so that other access network devices in the first RNA area send a paging message to the first terminal device, and carry the service type and / or service priority of the first service in the paging message. Optionally, the first access network device may send the second message to all other access network devices in the first RNA area corresponding to the first terminal device, so that all access network devices in the RNA area can send a paging message to the first terminal device, and carry the service type and / or service priority of the first service in the paging message.

[0090] Step S205: The first terminal device receives a first paging message from the first access network device. Further, the first terminal device is in an RRC inactive state.

[0091] In the embodiment of the present application, the first terminal device may also receive a second paging message from the second access network device. It can be understood that since one or more access network devices in the first RNA area corresponding to the first terminal device may send a paging message to the first terminal device, the paging message actually received by the first terminal device may be the first paging message sent by the first access network device, or the second paging message sent by the second access network device (i.e., the paging message sent by other access network devices in the first RNA area). Moreover, both the first paging message and the second paging message include information indicating the service type and / or service priority of the first service, such as the first information.

[0092] Step S206: The first terminal device determines whether to process the first service according to the service type and / or service priority of the first service.

[0093] In the embodiment of the present application, the service type and / or service priority of the first service can be understood as the reason value of the paging of the access network device to the first terminal device. The first terminal device can determine whether to process the first service based on the reason value of the paging. For example, if the first terminal device is not currently performing other services, the first terminal device can directly determine that the first service needs to be processed. If the first terminal device is currently performing other services, such as the second service, the first terminal device can determine whether to process the first service based on the service type and / or service priority of the first service, and the service type and / or service priority of the ongoing second service. The first terminal device determines whether to process the first service, which can be understood as the first terminal device determines whether to accept the first service. After the first terminal device determines to accept the first service, it can establish an RRC connection with the first access network device or the second access network device, and receive data of the first service from the first access network device or the second access network device.

[0094] In one possible design, the first terminal device may have two identifiers, namely a first identifier and a second identifier, wherein the first service may be associated with the first identifier of the first terminal device, and the second service may be associated with the second identifier of the first terminal device. In this way, the first terminal device being in an RRC inactive state means that the RRC state associated with the first identifier of the first terminal device is an RRC inactive state, the first access network device refers to the access network device accessed when the RRC state most recently associated with the first identifier of the first terminal device is an RRC connected state, and the second access network device refers to other access network devices other than the first access network device in the first RNA region corresponding to the first identifier of the first terminal device. The first terminal device is currently performing the second service, which can indicate that the RRC state associated with the second identifier of the first terminal device is an RRC connected state. In addition, considering that after the first core network device determines that the first service associated with the first identifier of the first terminal device has arrived, it will trigger the first access network device to send a first paging message and the second access network device to send a second paging message. Therefore, in addition to the service type and / or service priority of the first service, the first paging message and the second paging message may also include the first identifier associated with the first service, indicating that the first paging message and the second paging message are paging for the first identifier of the first terminal device.

[0095] That is to say, the first terminal device may be a terminal device supporting dual-SIM dual-standby, and the first terminal device may include two SIM cards, wherein SIM card 1 corresponds to the first identifier, and SIM card 2 corresponds to the second identifier. The first service may be a service on SIM card 1 of the first terminal device, and the second service may be a service on SIM card 2 of the first terminal device. In this way, the first terminal device being in an RRC inactive state means that SIM card 1 of the first terminal device is currently in an RRC inactive state, that is, the RRC state associated with the first terminal device and the first identifier is the RRC state corresponding to SIM card 1 in the first terminal device. The first access network device refers to the access network device that the SIM card 1 of the first terminal device accessed when it was in the RRC connected state the last time, and the second access network device refers to other access network devices in the first RNA region corresponding to SIM card 1 of the first terminal device except the first access network device. The first terminal device is currently performing the second service, which may indicate that SIM card 2 of the first terminal device is currently in an RRC connected state, that is, the RRC state associated with the first terminal device and the second identifier is the RRC state corresponding to SIM card 2 in the first terminal device. In addition, the first paging message sent by the first access network device and the second paging message sent by the second access network device may include, in addition to the service type and / or service priority of the first service, the first identifier of the first terminal device, indicating that the first paging message and the second paging message are paging for SIM card 1 of the first terminal device.

[0096] Specifically, the first identifier and the second identifier may refer to identifiers assigned by the core network to SIM card 1 and SIM card 2 of the first terminal device, such as a temporary mobile subscriber identity (TMSI) or a 5G network temporary mobile subscriber identity (5G temporary mobile subscriber identity, 5G-TMSI), or an international mobile subscriber identity (IMSI). The first identifier and the second identifier may also refer to identifiers assigned by the access network to SIM card 1 and SIM card 2 of the first terminal device, such as a cell radio network temporary identifier (C-RNTI).

[0097] Specifically, the first terminal device is currently performing the second service. After the first terminal device receives the first paging message or the second paging message, if it is determined that the service priority of the first service is higher than the service priority of the second service, the first terminal device may determine that the first service needs to be processed and the second service is suspended. Alternatively, after the first terminal device receives the first paging message or the second paging message, it may issue a prompt message, which is used to indicate the service type of the first service. Subsequently, the first terminal device may obtain the user's response information to the prompt message, and determine whether to process the first service according to the response message. If the user indicates to process the first service through the response message, the first terminal device may determine that the first service needs to be processed and the second service is suspended. If the user indicates not to process the first service through the response message, or the first terminal device does not obtain the response information to the prompt message within the set time period, the first terminal device may determine not to process the first service. For example, the first terminal device may display the service type of the newly arrived first service to the user on the display screen, and set two buttons on the display screen, corresponding to the two options of "yes" and "no", respectively, so that the user can manually select whether to process the first service.

[0098] In an embodiment of the present application, after the first terminal device determines that it needs to process the first service, it also needs to respond to the received paging message. Specifically, if the first terminal device receives the first paging message sent by the first access network device, the first terminal device may initiate a random access process to the first access network device after determining that it needs to process the first service, so as to access the network and respond to the paging. Furthermore, the first access network device may establish an RRC connection with the first terminal device, and after establishing the RRC connection with the first terminal device, send NAS information indicating the first service to the first terminal device. Subsequently, the first access network device may also send data of the first service to the first terminal device.

[0099] If the first terminal device receives the second paging message sent by the second access network device, the first terminal device may initiate a random access process to the second access network device to access the network response paging after determining that the first service needs to be processed. The first access network device may also send NAS information indicating the first service to the second access network device, and the second access network device may send the NAS information to the first terminal device after establishing an RRC connection with the first terminal device. Subsequently, the second access network device may also send data of the first service to the first terminal device.

[0100] Further optionally, if the first terminal device determines not to process the first service, the first terminal device does not initiate a random access process to the first access network device or the second access network device.

[0101] It should be noted that the first terminal device in the embodiment of the present application may be a terminal device with a single transmission capability. Therefore, when the first terminal device determines to process the first service, if it wants to respond to the first paging message or the second paging message, it must suspend the second service currently in progress. Figure 3 The method shown in suspends the second service.

[0102] Please refer to Figure 3 , is a flow chart of another communication method provided in an embodiment of the present application, the method may include the following steps S301 to S305:

[0103] Step S301: The first terminal device sends a transmission pause request message to the first core network device. The transmission pause request message includes a second identifier of the first terminal device. The transmission pause request message is used to request suspension of a second service of the first terminal device, and the second service is associated with the second identifier of the first terminal device.

[0104] In the embodiment of the present application, the first terminal device has two identifiers, namely the first identifier and the second identifier. It can be understood that the first terminal device is a terminal device supporting a dual-card dual-standby function, and the terminal device includes two SIM cards, wherein SIM card 1 corresponds to the first identifier and SIM card 2 corresponds to the second identifier. Accordingly, the first terminal device may have two RRC states, one RRC state is associated with the first identifier of the first terminal device, which refers to the RRC state of SIM card 1, and the other RRC state is associated with the second identifier of the first terminal device, which refers to the RRC state of SIM card 2. Since the transmission suspension request information sent by the first terminal device is used to request the suspension of the second service associated with the second identifier, it can be understood that the RRC state of the current first terminal device associated with the second identifier can be an RRC connection state, that is, SIM card 2 is in an RRC connection state, and the RRC state of the first terminal device associated with the first identifier can be an RRC inactive state, that is, SIM card 1 can be in an RRC inactive state.

[0105] Specifically, the first identifier and the second identifier may refer to identifiers assigned by the core network to SIM card 1 and SIM card 2 of the first terminal device, such as a temporary mobile subscriber identity (TMSI) or a 5G network temporary mobile subscriber identity (5G temporary mobile subscriber identity, 5G-TMSI), or an international mobile subscriber identity (IMSI). The first identifier and the second identifier may also refer to identifiers assigned by the access network to SIM card 1 and SIM card 2 of the first terminal device, such as a cell radio network temporary identifier (C-RNTI).

[0106] In one possible design, the first core network device may be an AMF.

[0107] Step S302: The first core network device receives transmission pause request information from the first terminal device.

[0108] Step S303: The first core network device sends first indication information to the third access network device, where the first indication information is used to release the RRC state associated with the first terminal device and the second identifier to an RRC idle state or an RRC inactive state.

[0109] The third access network device is the access network device accessed by the second identifier of the first terminal device, that is, the access network device accessed by SIM card 2. After receiving the first indication information, the third access network device may send an RRC connection release message or an RRC connection suspension message to the first terminal device, and the RRC connection release message or the RRC connection suspension message includes the second identifier of the first terminal device, which is used to release the RRC state associated with the first terminal device and the second identifier to the RRC idle state or the RRC inactive state, that is, to release the SIM card 2 of the first terminal device to the RRC idle state or the RRC inactive state. It should be understood that the third access network device and the first access network device can be the same access network device or different access network devices, and the present application is not limited thereto. Here, the first access network device refers to the anchor access network device associated with the first identifier of the first terminal device, that is, the access network device accessed when the SIM card 1 of the first terminal device was in the RRC connected state for the last time.

[0110] In addition, the first core network device may also send a second indication message to the second core network device, and the second indication message is used to instruct the second core network device to stop sending data of the second service to the third access network device. In this way, after receiving the second indication message, the second core network device may stop sending the second indication message to the third access network device, thereby suspending the second service on the network side. In one possible design, the second core network device may be a UPF.

[0111] Step S304, the first core network device sends a transmission pause response message to the first terminal device, the transmission pause response message includes a second identifier, and the transmission pause response message is used to indicate to the first terminal device that the second service has been suspended. Optionally, the first core network device may send a transmission pause response message to the first terminal device after receiving the transmission pause request message sent by the first terminal device. Alternatively, the first core network device may also send a transmission pause response message to the first terminal device after sending the first indication message to the third access network device and / or sending the second indication message to the second core network device, which is not limited in the present application.

[0112] Step S305: The first terminal device receives the transmission pause response information sent by the first core network device.

[0113] In an embodiment of the present application, the first terminal device may send a transmission suspension request message to the first core network device when determining that the second service needs to be suspended. The need to suspend the second service may be because the first terminal device is a terminal device with a single transmission capability, and in the process of processing the second service, the first terminal device receives a first paging message from the first access network device or a second paging message from the second access network device, and the first paging message or the second paging message is a paging for the first identifier of the first terminal device, that is, a paging for SIM card 1 in the first terminal device. Moreover, the service priority of the first service indicated in the first paging message and the second paging message is higher than the service priority of the second service, or the first terminal device obtains the response information of the user confirming to process the first service after receiving the first paging message or the second paging message.

[0114] Optionally, after suspending the second service, the first terminal device may also resume the second service. For example, the third access network device may send a transmission resumption request message to the first core network device, and the transmission resumption request message includes a second identifier for requesting to resume the second service associated with the second identifier. After receiving the transmission resumption request message, the first core network device may send a fifth indication message to the second core network device, and the fifth indication message is used to instruct the second core network device to resume sending data of the second service to the third access network device. The first core network device may also send a transmission resumption response message to the third access network device. The first core network device may send a transmission resumption response message to the third access network device after receiving the transmission resumption request message, or may send a transmission resumption response message to the third access network device after sending the fifth indication message to the second core network device, which is not limited in this application. In addition, after receiving the transmission resumption response message, the third access network device may also send an RRC connection establishment message or an RRC connection resumption message to the first terminal device to convert the RRC state associated with the first terminal device and the second identifier to the RRC connection state.

[0115] Please refer to Figure 4 , is a flow chart of another communication method provided in an embodiment of the present application, the method may include the following steps S401 to S406:

[0116] Step S401: The first terminal device sends third indication information to the first core network device, where the third indication information is used to indicate the first identifier and the second identifier of the first terminal device.

[0117] In an embodiment of the present application, the first terminal device is a terminal device that supports a dual-SIM dual-standby function, and the terminal device includes two SIM cards, SIM card 1 corresponds to the first identifier, and SIM card 2 corresponds to the second identifier. Accordingly, the first terminal device may have two RRC states, one RRC state is associated with the first identifier of the first terminal device, and refers to the RRC state of SIM card 1, and the other RRC state is associated with the second identifier of the first terminal device, and refers to the RRC state of SIM card 2. By sending the first identifier and the second identifier to the first core network device, the first core network device can confirm that the first identifier and the second identifier are actually identifiers of the same terminal device entity, that is, SIM card 1 and SIM card 2 are both SIM cards in the first terminal device, so the first core network device can bind or associate SIM card 1 with SIM card 2 from the network side.

[0118] Specifically, the first identifier and the second identifier may refer to identifiers assigned by the core network to SIM card 1 and SIM card 2 of the first terminal device, such as a temporary mobile subscriber identity (TMSI) or a 5G network temporary mobile subscriber identity (5G temporary mobile subscriber identity, 5G-TMSI), or an international mobile subscriber identity (IMSI). The first identifier and the second identifier may also refer to identifiers assigned by the access network to SIM card 1 and SIM card 2 of the first terminal device, such as a cell radio network temporary identifier (C-RNTI).

[0119] Furthermore, the first terminal device may also be a terminal device with a single sending capability. In this case, the third indication information may also include capability information of the first terminal device, and the capability information is used to indicate that the sending capability of the first terminal device is single sending, so that the first core network device can decide from the network side whether to process a service associated with a certain identifier based on the first identifier and the second identifier of the first terminal device and the single sending capability of the first terminal device.

[0120] In a possible design, the first core network device may be an AMF. SIM card 1 and SIM card 2 in the first terminal device may belong to the same operator, or may be registered to the same AMF.

[0121] Step S402: The first terminal device receives data of a second service from the access network device. The second service is associated with the second identifier of the first terminal device. The RRC state associated with the first terminal device and the second identifier is an RRC connected state.

[0122] The second service is associated with the second identifier of the first terminal device, which can indicate that the second service is the service of SIM card 2 of the first terminal device. The first terminal device receives data of the second service associated with the second identifier from the access network device, which can indicate that the first terminal device is performing the second service, and the current RRC state associated with the second identifier of the first terminal device is the RRC connection state, that is, the SIM card 2 in the first terminal device is currently in the RRC connection state. Correspondingly, the access network device refers to the access network device accessed by the second identifier of the first terminal device, that is, the access network device currently accessed by SIM2 in the first terminal device.

[0123] Step S403: The first core network device determines that the first service of the first terminal device has arrived, the first service is associated with the first identifier of the first terminal device, and the RRC state associated with the first identifier of the first terminal device is an RRC inactive state or an RRC idle state.

[0124] The first service is associated with the first identifier of the first terminal device, which can be understood as the first service is the service of the SIM card 1 of the first terminal device. The RRC state currently associated with the first identifier of the first terminal device is RRC inactive state or RRC idle state, which can be understood as that the SIM card 1 of the first terminal device is currently in RRC inactive state or RRC idle state.

[0125] Step S404: The first core network device determines whether to process the first service according to the service type or service priority of the first service and the service type or service priority of the second service.

[0126] In one possible design, if the service priority of the first service is higher than the service priority of the second service, the first core network device may determine to process the first service and suspend the second service. In an embodiment of the present application, the service priorities of various service types may be pre-stored in the first core network device. Alternatively, the first core network device may also receive service priority information from the first terminal device, and the service priority information includes the service priority of at least one service type of the first terminal device. In this way, different terminal devices can set different service priorities for services of various service types, thereby effectively improving the flexibility of service processing and improving user experience.

[0127] If the first core network device determines to process the first service, the first core network device can trigger paging for the first identifier of the first terminal device, suspend the first service associated with the first terminal device and the second identifier, and release the RRC state associated with the first terminal device and the second identifier to an RRC inactive state or an RRC idle state.

[0128] Specifically, in step S405, the first core network device may send a fourth indication message to the access network device, and the fourth indication message is used to instruct the access network device to page the first identifier of the first terminal device, that is, to page the SIM card 1 of the first terminal device. After the access network device receives the fourth indication message, in step S406, it may carry the first identifier of the first terminal device and send a paging message to the first terminal device. After the first terminal device responds to the paging message and establishes an RRC connection with the access network device, the RRC state associated with the first terminal device and the first identifier may be converted from an RRC inactive state to an RRC connected state, that is, the SIM card 1 of the first terminal device enters an RRC connected state. Subsequently, the first terminal device may also receive data of the first service from the access network device. It can be understood that in an embodiment of the present application, the first terminal device may be connected to the same access network device via a first identifier (i.e., an identifier corresponding to SIM card 1) and a second identifier (i.e., an identifier corresponding to SIM card 2).

[0129] In step S407, the first core network device may also send a first indication message to the access network device, and the first indication message is used to instruct the access network device to release the RRC state associated with the first terminal device and the second identifier from the RRC connected state to the RRC idle state or the RRC inactive state. After receiving the first indication message, the access network device may carry the second identifier of the first terminal device and send an RRC connection release message or an RRC connection suspension message to the first terminal device in step S408. In addition, the first core network device may also send a second indication message to the second core network device, and the second indication message is used to instruct the second core network device to stop sending data of the second service to the access network device. In one possible design, the second core network device may be a UPF.

[0130] It should be understood that the embodiment of the present application does not specifically limit the execution order of the above steps S401 to S408, and the execution order of each step is limited according to its internal logic. For example, step S401 may be executed before step S402, or it may be executed synchronously with step S402, or it may be executed after step S402, without limitation. Step S402 may be executed before step S403, step S401 may be executed before step S403, and step S403 may be executed before step S404. Step S405 may be executed before step S407, or it may be executed after step S407, without limitation.

[0131] The present application provides a communication device, please refer to Figure 5, is a structural diagram of a communication device provided in an embodiment of the present application, and the communication device 500 includes: a transceiver module 510 and a processing module 520. The communication device can be used to implement the functions of the first core network device involved in any of the above method embodiments. For example, the communication device may be an AMF network element in the core network, or other network functions with access and mobility management functions. The network element or network function may be a network element in a hardware device, a software function running on dedicated hardware, or a virtualized function instantiated on a platform (e.g., a cloud platform).

[0132] When the communication device is used as the first core network device, executing Figure 2 When using the method shown in , the processing module 520 is used to generate first information, which is used to indicate the service type and / or service priority of the first service, and the first service is a service of the first terminal device in the RRC inactive state; the transceiver module 510 is used to send the first information to the first access network device, and the first access network device is the anchor access network device of the first terminal device.

[0133] In a possible design, the first information is included in a first message. The first message also includes NAS information, and the NAS information is used to indicate the first service.

[0134] When the communication device is used as the first core network device, executing Figure 3 When using the method shown in , the transceiver module 510 is used to receive a transmission suspension request message from the first terminal device, the transmission suspension request message includes the second identifier of the first terminal device, and the transmission suspension request message is used to request to suspend the second service of the first terminal device, and the second service is associated with the second identifier; the processing module 520 is used to send a first indication message to the third access network device through the transceiver module 510, and the first indication message is used to indicate the release of the RRC state associated with the second identifier of the first terminal device to the RRC idle state or the RRC inactive state.

[0135] In one possible design, the transceiver module 510 is also used to send second indication information to the second core network device, where the second indication information is used to instruct the second core network device to stop sending data of the second service to the third access network device.

[0136] In one possible design, the transceiver module 510 is also used to send a transmission pause response message to the first terminal device, where the transmission pause response message includes a second identifier, and the transmission pause response message is used to indicate that the second service has been suspended.

[0137] When the communication device is used as the first core network device, executing Figure 4When using the method shown in , the transceiver module 510 is used to receive third indication information from the first terminal device, and the third indication information is used to indicate the first identifier and the second identifier of the first terminal device; the processing module 520 is used to determine that a first service of the first terminal device has arrived, the first service is associated with the first identifier, and the RRC state associated with the first terminal device and the first identifier is an RRC inactive state or an RRC idle state, and determine whether to process the first service according to the service type or service priority of the first service and the service type or service priority of the second service, and the second service is associated with the second identifier.

[0138] In a possible design, the third indication information may also include capability information of the first terminal device, where the capability information is used to indicate that the sending capability of the first terminal device is single sending.

[0139] In one possible design, if it is determined to process the first service, the transceiver module 510 is also used to send a fourth indication message to the access network device, where the fourth indication message is used to instruct the access network device to page the first identifier of the first terminal device.

[0140] In one possible design, if it is determined to process the first service, the transceiver module 510 is also used to send a first indication message to the access network device, and the first indication message is used to indicate the release of the RRC state associated with the first terminal device and the second identifier to the RRC idle state or the RRC inactive state; and / or, the transceiver module 510 is also used to send a second indication message to the second core network device, and the second indication message is used to indicate the second core network device to stop sending data of the second service to the access network device.

[0141] In one possible design, the transceiver module 510 is further used to receive service priority information from the first terminal device, where the service priority information includes the service priority of at least one service type of service of the first terminal device.

[0142] It should be noted that the processing module 520 involved in the communication device 500 can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module 510 can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0143] See also Figure 6, is another structural diagram of a communication device provided in an embodiment of the present application. The communication device 600 includes a processor 610, a memory 620, and a communication interface 630. Optionally, the communication device 600 also includes an input device 640, an output device 650 and a bus 660. Among them, the processor 610, the memory 620, the communication interface 630, the input device 640, and the output device 650 are interconnected via a bus 660. Instructions or programs are stored in the memory 620, and the processor 610 is used to execute the instructions or programs stored in the memory 620. When the instructions or programs stored in the memory 620 are executed, the processor 610 is used to execute the operations performed by the processing module 520 in the above-mentioned method embodiment, and the communication interface 530 is used to execute the operations performed by the transceiver module 510 in the above-mentioned embodiment.

[0144] It should be noted that the communication device 600 provided in the embodiment of the present application may correspond to the first core network device provided in the embodiment of the present invention, and the operations and / or functions of each module in the device 600 are respectively to implement Figures 2 to 4 For the sake of brevity, the corresponding process of the method shown in is not repeated here.

[0145] This application embodiment provides another communication device, please refer to Figure 7 , is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, and the communication device 700 includes: a transceiver module 710 and a processing module 720. The communication device can be used to implement the functions of the first terminal device involved in any of the above method embodiments. For example, the communication device can be a handheld terminal device, a vehicle-mounted terminal device, a vehicle user device, or a chip included in the terminal device, or the communication device is a vehicle-mounted device, such as a vehicle-mounted module or vehicle-mounted unit built into a vehicle, etc.

[0146] When the communication device is used as the first terminal device, executing Figure 2 In the method embodiment shown in , the transceiver module 710 is used to receive a paging message from an access network device, the paging message including the service type and / or service priority of the first service, and the communication device 700 is in an RRC inactive state; the processing module 720 is used to determine whether to process the first service according to the service type and / or service priority of the first service.

[0147] In one possible design, the processing module 720 is also used to suspend the second service if it is determined that the communication device 700 is processing a second service and the service priority of the first service is higher than the service priority of the second service. The first service is associated with the first identifier of the communication device 700, and the second service is associated with the second identifier of the communication device 700.

[0148] In one possible design, the processing module 720 is also used to determine that the communication device 700 is processing a second service, and then issue a prompt message, where the prompt message is used to indicate the service type of the first service, the first service is associated with the first identifier of the communication device 700, and the second service is associated with the second identifier of the communication device 700; the processing module 720 is also used to obtain response information for the prompt message, and determine whether to process the first service based on the response information.

[0149] In one possible design, after the processing module 720 determines that the communication device 700 processes the first service, the transceiver module 710 is further used to receive NAS information from the access network device, where the NAS information is used to indicate the first service.

[0150] When the communication device is used as the first terminal device, executing Figure 3 In the method embodiment shown in , the processing module 720 is used to send a transmission pause request message to the first core network device through the transceiver module 710, and the transmission pause request message includes the second identifier of the communication device 700. The transmission pause request message is used to request to suspend the second service of the communication device 700, and the second service is associated with the second identifier; the transceiver module 710 is also used to receive a transmission pause response message sent by the first core network device, and the transmission pause response message is used to indicate that the second service has been suspended.

[0151] In one possible design, the transceiver module 710 is also used to receive a first paging message from a first access network device, the first paging message including a service type and / or service priority of a first service, the first service is associated with a first identifier of the communication device 700, and the RRC state of the communication device 700 associated with the first identifier is an RRC inactive state; the processing module 720 is also used to determine the need to suspend the second service based on the service type and / or service priority of the first service.

[0152] In one possible design, the transceiver module 710 is also used to receive an RRC connection release message from a third access network device, and the RRC connection release message is used to release the RRC state associated with the communication device 700 and the second identifier to an RRC idle state or an RRC inactive state.

[0153] When the communication device is used as the first terminal device, executing Figure 4In the method embodiment shown in , the transceiver module 710 is used to send a third indication information to the first core network device, and the third indication information is used to indicate the first identifier and the second identifier of the communication device 700; the transceiver module 710 is also used to receive data of a second service from the access network device, the second service is associated with the second identifier, and the RRC state associated with the second identifier of the communication device 700 is an RRC connected state; the transceiver module 710 is also used to receive an RRC connection release message from the access network device, and the RRC connection release message is used to release the RRC state associated with the second identifier of the communication device 700 to an RRC inactive state or an RRC idle state; the transceiver module 710 is also used to receive a paging message from the access network device, the paging message includes the first identifier, and the RRC state associated with the first identifier of the communication device 700 is an RRC inactive state; the transceiver module 710 is also used to receive data of a first service from the access network device, the first service is associated with the first identifier, and the service priority of the first service is higher than the service priority of the second service.

[0154] In a possible design, the third indication information also includes capability information of the communication device 700, where the capability information is used to indicate that the sending capability of the communication device 700 is single sending.

[0155] In one possible design, the transceiver module 710 is also used to receive an RRC connection release message from an access network device, where the RRC connection release message is used to release the RRC state associated with the communication device 700 and the second identifier to an RRC idle state or an RRC inactive state.

[0156] In one possible design, the transceiver module 710 is also used to send service priority information to the first core network device, where the service priority information includes the service priority of at least one service type of the communication device 700.

[0157] The processing module 720 involved in the communication device can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module 710 can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0158] Please refer to Figure 8 , is another structural diagram of another communication device provided in an embodiment of the present application. The communication device may specifically be a terminal device. For ease of understanding and illustration, Figure 8 In this article, a mobile phone is used as an example of a terminal device. Figure 8As shown, the terminal device includes a processor and may also include a memory. Of course, it may also include a radio frequency circuit, an antenna, and input and output devices. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal device, execute software programs, and process software program data. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals. The antenna 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. It should be noted that some types of terminal devices may not have input and output devices.

[0159] When data needs to be sent, 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. For ease of explanation, Figure 8 Only one memory and processor are shown. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or may be integrated with the processor, and the embodiments of the present application do not limit this.

[0160] In the embodiments of the present application, the antenna and the radio frequency circuit having transceiver functions may be regarded as the transceiver unit of the terminal device, and the processor having the processing function may be regarded as the processing unit of the terminal device. Figure 8 As shown, the terminal device includes a transceiver unit 810 and a processing unit 820. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver device, etc. The processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, etc. Optionally, the device used to implement the receiving function in the transceiver unit 810 may be regarded as a receiving unit, and the device used to implement the sending function in the transceiver unit 810 may be regarded as a sending unit, that is, the transceiver unit 810 includes a receiving unit and a sending unit. The transceiver unit may sometimes also be referred to as a transceiver, a transceiver, or a transceiver circuit, etc. The receiving unit may sometimes also be referred to as a receiver, a receiver, or a receiving circuit, etc. The sending unit may sometimes also be referred to as a transmitter, a transmitter, or a transmitting circuit, etc. It should be understood that the transceiver unit 810 is used to perform the sending operation and the receiving operation on the terminal device side in the above method embodiment, and the processing unit 820 is used to perform other operations on the terminal device in addition to the sending operation in the above method embodiment.

[0161] The present application embodiment provides another communication device, see Fig. 9 , is a schematic diagram of the structure of a communication device provided in an embodiment of the present application, the communication device 900 includes: a transceiver module 910 and a processing module 920. The communication device can be used to implement the functions of the access network device involved in any of the above method embodiments. For example, the communication device can be a chip included in a base station or a base station device.

[0162] When the communication device is used as an access network device, executing Figure 2 In the method embodiment shown in , the transceiver module 910 is used to receive first information from a first core network device, the first information being used to indicate a service type and / or service priority of a first service, the first service being a service of a first terminal device in an RRC inactive state; the transceiver module 910 is also used to send a first paging message to the first terminal device, the first paging message including the service type and / or service priority of the first service.

[0163] In one possible design, the communication device 900 is an anchor access network device of the first terminal device.

[0164] In one possible design, the transceiver module 910 is also used to send a second message to a second access network device, the second message including the service type or service priority of the first service, the second message being used to instruct the second access network device to send a second paging message to the first terminal device, the second paging message including the service type and / or service priority of the first service, and the second access network device and the communication device 900 are located in the same RNA area.

[0165] In one possible design, the first information is included in a first message, which also includes NAS information, and the NAS information is used to indicate a first service; the transceiver module 910 is also used to send the NAS information to the first terminal device; or, to send the NAS information to the second access network device.

[0166] The processing module 920 involved in the communication device can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module 910 can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0167] See also Fig.10 , is another structural diagram of another communication device provided in an embodiment of the present application. The communication device 1000 may be specifically an access network device, such as a base station, for implementing the functions of the access network device in any of the above method embodiments.

[0168] The access network equipment includes: one or more radio frequency units, such as a remote radio unit (RRU) 1001 and one or more baseband units (BBU) (also called digital unit, digital unit, DU) 1002. The RRU 1001 can be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 10011 and a radio frequency unit 10012. The RRU 1001 part is mainly used for the transmission and reception of radio frequency signals and the conversion of radio frequency signals and baseband signals. The BBU 1002 part is mainly used for baseband processing, controlling the base station, etc. The RRU 1001 and the BBU 1002 can be physically set together or physically separated, that is, a distributed base station.

[0169] The BBU 1002 is the control center of the base station, which can also be called a processing unit, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing unit) 1002 can be used to control the base station to execute the operation process of the access network device in the above method embodiment.

[0170] In one example, the BBU 1002 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network with a single access indication (such as an LTE network), or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The BBU 1002 may also include a memory 10021 and a processor 10022, and the memory 10021 is used to store necessary instructions and data. The processor 10022 is used to control the base station to perform necessary actions, for example, to control the base station to perform the sending operation in the above method embodiment. The memory 10021 and the processor 10022 may serve one or more single boards. In other words, a memory and a processor may be separately set on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits may be set on each single board.

[0171] An embodiment of the present application also provides a chip system, including: a processor, the processor is coupled to a memory, the memory is used to store programs or instructions, when the program or instructions are executed by the processor, the chip system implements the method in any of the above method embodiments.

[0172] Optionally, the processor in the chip system may be one or more. The processor may be implemented by hardware or by software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc. When implemented by software, the processor may be a general-purpose processor implemented by reading software code stored in a memory.

[0173] Optionally, the memory in the chip system may be one or more. The memory may be integrated with the processor or may be separately provided with the processor, which is not limited in the present application. Exemplarily, the memory may be a non-transient processor, such as a read-only memory ROM, which may be integrated with the processor on the same chip or may be provided on different chips. The present application does not specifically limit the type of memory and the arrangement of the memory and the processor.

[0174] Exemplarily, the chip system can be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on chip (SoC), a central processor unit (CPU), a network processor (NP), a digital signal processor (DSP), a microcontroller unit (MCU), a programmable logic device (PLD) or other integrated chips.

[0175] It should be understood that each step in the above method embodiment can be completed by an integrated logic circuit of hardware in a processor or by instructions in the form of software. The method steps disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware processor, or by a combination of hardware and software modules in a processor.

[0176] An embodiment of the present application further provides a computer-readable storage medium, in which computer-readable instructions are stored. When a computer reads and executes the computer-readable instructions, the computer executes a method in any of the above method embodiments.

[0177] The embodiment of the present application also provides a computer program product. When a computer reads and executes the computer program product, the computer executes the method in any of the above method embodiments.

[0178] The embodiment of the present application further provides a communication system, the communication system comprising a first core network device, a first access network device and a first terminal device. Optionally, the communication system may further comprise a second core network device.

[0179] 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.

[0180] 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), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (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).

[0181] 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) is integrated in the processor.

[0182] It should be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0183] It should be understood that in various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0184] 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.

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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.

[0190] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the 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: The method comprises: receiving transmission suspension request information from a first terminal device, wherein the transmission suspension request information includes a second identifier of the first terminal device, and the transmission suspension request information is used to request suspension of a second service of the first terminal device, wherein the second service is associated with the second identifier; Sending first indication information to a third access network device, where the third access network device is an access network device accessed by the second identifier of the first terminal device, and the first indication information is used to indicate releasing the radio resource control RRC state associated with the first terminal device and the second identifier to an RRC idle state or an RRC inactive state; The method further comprises: Generate first information, where the first information is used to indicate a service type and / or service priority of a first service, where the first service is a service of the first terminal device in an RRC inactive state; The first information is sent to a first access network device, where the first access network device is an access network device accessed when the RRC state to which the first identifier of the first terminal device was most recently associated was an RRC connected state, and the first service is associated with the first identifier. The first information is used by the first access network device to send a first paging message to the first terminal device, and the first paging message includes the service type and / or service priority of the first service.

2. The method according to claim 1, characterized in that: The method further comprises: Send second indication information to the second core network device, where the second indication information is used to instruct the second core network device to stop sending data of the second service to the third access network device.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Sending a transmission suspension response message to the first terminal device, wherein the transmission suspension response message includes the second identifier, and the transmission suspension response message is used to indicate that the second service has been suspended.

4. A communication method, characterized in that: The method comprises: Sending a transmission suspension request message to the first core network device, wherein the transmission suspension request message includes a second identifier of the first terminal device, and the transmission suspension request message is used to request suspension of a second service of the first terminal device, wherein the second service is associated with the second identifier; receiving transmission suspension response information sent by the first core network device, where the transmission suspension response information is used to indicate that the second service has been suspended; The method further comprises: receiving a first paging message from a first access network device, where the first access network device is an access network device accessed when the radio resource control RRC state to which the first identifier of the first terminal device was most recently associated was an RRC connected state, the first paging message including a service type and / or service priority of a first service, the first service being a service of the first terminal device in an RRC inactive state, the first service being associated with the first identifier, and the RRC state associated with the first terminal device and the first identifier being an RRC inactive state; It is determined, according to a service type and / or service priority of the first service, that the second service needs to be suspended.

5. The method according to claim 4, characterized in that The method further comprises: An RRC connection release message is received from a third access network device, where the RRC connection release message is used to release the RRC state associated with the first terminal device and the second identifier to an RRC idle state or an RRC inactive state.

6. A communication device, characterized in that: The device comprises a processing module and a transceiver module, wherein the processing module is coupled to the transceiver module and is configured to execute the method according to any one of claims 1 to 3, or to execute the method according to claim 4 or 5.

7. A communication device, characterized in that: The apparatus comprises at least one processor coupled to at least one memory: The at least one processor is configured to execute a computer program or instruction stored in the at least one memory, so that the apparatus executes the method according to any one of claims 1 to 3, or the apparatus executes the method according to claim 4 or 5.

8. A readable storage medium, characterized in that: Used to store instructions, when the instructions are executed, the method according to any one of claims 1 to 3 is implemented, or the method according to claim 4 or 5 is implemented.

9. A communication device, characterized in that: including a processor and an interface circuit; The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method according to any one of claims 1 to 3, or the processor is configured to execute the code instructions to perform the method according to claim 4 or 5.

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