A communication method and related device

Abstract

The embodiment of the present application discloses a communication method and related devices. The method includes: the terminal device responds to a first request message to deactivate the first bearer; when the network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is sent to the network device, and the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established. Using the embodiment of the present application, if the network device requests to establish a wireless resource bearer corresponding to the bearer that has been deactivated, the terminal device will send a message to the network device that the wireless resource bearer has been successfully established, so that the network device can successfully establish the wireless resource bearer to avoid the network device releasing the wireless resource control link, thereby ensuring the sustainability of packet switching services and / or circuit switching services.

Description

Technical Field

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

[0002] If the terminal equipment (User Equipment, UE) successfully registers with Combined under the third generation mobile communication technology (3rd-Generation, 3G), then for 3G, circuit switching (Circuit Switch, CS) services (such as calls, text messages, additional services, etc.) and packet switching (Packet Switch, PS) services (or data switching services) are supported concurrently. Therefore, when the upper layer needs to send data, it may activate a packet data protocol (Packet Data Protocol, PDP) bearer (for example, bearer ID_Y, corresponding to the first PS service) and activate the PDP of another dedicated bearer (for example, bearer ID_X, corresponding to the second PS service). If there are currently one CS service and two PS services, when the first PS service is no longer needed, the network or the upper layer will deactivate the bearer ID_Y corresponding to the service, and release the radio resource bearer (Radio Access Bearer, RAB) corresponding to the bearer ID_Y. However, since the core network and the access network may not be synchronized successfully, if the access network establishes the RAB corresponding to the deactivated bearer ID_Y, since the core network has deactivated the bearer ID_Y, the access network will fail to establish the RAB, causing the network to release the Radio Resource Control (RRC) link, which will lead to the failure of the CS service. Therefore, how to ensure the sustainability of the CS service when the bearers between the access network's RAB and the core network are not synchronized is an urgent problem to be solved. Summary of the invention

[0003] The present application provides a communication method and related devices, which can successfully establish a wireless resource bearer corresponding to a deactivated bearer when network information is not synchronized, so as to avoid the network device releasing the wireless resource control link, thereby ensuring the sustainability of the circuit switching service.

[0004] In a first aspect, an embodiment of the present application provides a communication method, the method comprising:

[0005] In response to the first request message, deactivate the first bearer;

[0006] When the network device requests to establish a first radio resource bearer corresponding to the first bearer, a first response message is sent to the network device, where the first response message is used to indicate that the first radio resource bearer corresponding to the first bearer has been established.

[0007] In an embodiment of the present application, when the bearers between the RAB of the access network and the core network are not synchronized (i.e., the network is abnormal), the network device actively requests to deactivate a bearer. After the bearer has been deactivated, if the network device requests to establish the RAB corresponding to the deactivated bearer, the terminal device will send a message to the network device that the RAB has been successfully established, thereby avoiding the network device from releasing the RRC link, thereby ensuring the sustainability of the CS service.

[0008] In an optional implementation, when bearer synchronization between the RAB of the access network and the core network is successful (ie, network information is synchronized or the network is normal), after deactivating the first bearer, the method further includes:

[0009] receiving a first message, where the first message is used to indicate that a first radio resource bearer corresponding to the first bearer has been released;

[0010] The first radio resource bearer corresponding to the first bearer is released.

[0011] In the embodiment of the present application, when bearer synchronization between the RAB of the access network and the core network is successful, when the terminal device deactivates a certain bearer, the network device can normally release the RAB corresponding to the bearer.

[0012] In an optional embodiment, the method further includes:

[0013] When the first packet switching service and the second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

[0014] In the embodiment of the present application, when the terminal device runs a PS service, the PDP bearer used for the PS service is activated to ensure normal use of the PS service.

[0015] In an optional implementation, when the network is normal, the method further includes:

[0016] In response to the third request message, establishing a third radio resource bearer with the network device;

[0017] If the third radio resource bearer is the same as the first radio resource bearer, the third radio resource bearer is released.

[0018] In an embodiment of the present application, if a new RAB is established between a terminal device and a network device, the terminal device may compare the bearer corresponding to the new RAB with the deactivated bearer. If they are the same, the new RAB may be released to avoid wasting resources.

[0019] In an optional implementation, when the third bearer is the same as the first bearer, the third radio resource bearer corresponding to the third bearer is cleared.

[0020] In an optional embodiment, the method further includes:

[0021] Record the first bearer and / or the first radio resource bearer corresponding to the first bearer.

[0022] In an optional implementation, deactivating the first bearer includes:

[0023] When receiving the first request message, starting a timer;

[0024] When the timer times out, the first bearer is deactivated.

[0025] In an optional implementation, when the first bearer has been deactivated or the first radio resource bearer corresponding to the first bearer has been released, the timer is stopped.

[0026] In a second aspect, an embodiment of the present application provides a communication method, the method comprising:

[0027] Sending a second request message to the network device, where the second request message is used to request deactivation of the first bearer or request release of a first radio resource bearer corresponding to the first bearer;

[0028] When the first radio resource bearer corresponding to the first bearer has been established, the first bearer is deactivated.

[0029] In an embodiment of the present application, when the bearers between the RAB of the access network and the core network are not synchronized (i.e., the network is abnormal), the terminal device actively requests to deactivate a bearer or release the RAB corresponding to a bearer. If the network device does not release the RAB corresponding to the bearer after receiving the request, the terminal device can locally deactivate the bearer so that the RAB corresponding to the bearer is successfully released, thereby avoiding the network device from releasing the RRC link, thereby ensuring the sustainability of the CS service.

[0030] In an optional embodiment, the method further includes:

[0031] When the first packet switching service and the second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

[0032] In a third aspect, an embodiment of the present application provides a communication method, the method comprising:

[0033] Sending a first request message to the terminal device, where the first request message is used to request deactivation of the first bearer;

[0034] When the network device requests to establish a first radio resource bearer corresponding to the first bearer, a first response message is received, where the first response message is used to indicate that the first radio resource bearer corresponding to the first bearer has been established.

[0035] In an embodiment of the present application, when the bearers between the RAB of the access network and the core network are not synchronized (i.e., the network information is not synchronized), the network device actively requests to deactivate a bearer. After the bearer has been deactivated, if the network device requests to establish the RAB corresponding to the deactivated bearer, the terminal device will send a message to the network device indicating that the RAB has been successfully established, thereby avoiding the network device from releasing the RRC link, thereby ensuring the sustainability of the CS service.

[0036] In an optional implementation, when bearer synchronization between the RAB of the access network and the core network is successful (ie, the network is normal), after sending the first request message to the terminal device, the method further includes:

[0037] A first message is sent to a terminal device, where the first message is used to indicate that a first wireless resource bearer corresponding to the first bearer has been released.

[0038] In an optional embodiment, the method further includes:

[0039] When the first packet switching service and the second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

[0040] In an optional implementation, when the network is normal, the method further includes:

[0041] Sending a third request message to the terminal device, where the third request message is used to request establishment of a third radio resource bearer;

[0042] If the third radio resource bearer is the same as the first radio resource bearer, the third radio resource bearer is released.

[0043] In a fourth aspect, an embodiment of the present application provides a communication method, the method comprising:

[0044] receiving a second request message, where the second request message is used to request deactivation of the first bearer or to request release of a first radio resource bearer corresponding to the first bearer;

[0045] A second response message is sent to the terminal device, where the second response message is used to instruct the network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer.

[0046] In an embodiment of the present application, the terminal device actively requests to deactivate a bearer or release the RAB corresponding to a bearer. After receiving the request, if the network device does not deactivate the bearer or release the RAB corresponding to the bearer, the terminal device can locally deactivate the bearer to ensure that the RAB corresponding to the bearer is successfully released, thereby avoiding the network device from releasing the RRC link and ensuring the sustainability of the CS service.

[0047] In an optional embodiment, the method further includes:

[0048] When the first packet switching service and the second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

[0049] In a fifth aspect, an embodiment of the present application provides a communication device, the device comprising:

[0050] a processing unit, configured to deactivate the first bearer in response to the first request message;

[0051] The sending unit is used to send a first response message to the network device when the network device requests to establish a first wireless resource bearer corresponding to the first bearer, wherein the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0052] The communication device can implement the method in other optional implementation manners executed by the terminal device described in the first aspect, thereby achieving the effect described in the first aspect, which will not be repeated here.

[0053] In a sixth aspect, an embodiment of the present application provides a communication device, the device comprising:

[0054] A sending unit, configured to send a second request message to the network device, where the second request message is used to request to deactivate the first bearer or to request to release a first radio resource bearer corresponding to the first bearer;

[0055] The processing unit is used to deactivate the first bearer when the first radio resource bearer corresponding to the first bearer has been established.

[0056] The communication device can implement the method in other optional implementation manners executed by the terminal device described in the second aspect, thereby achieving the effect described in the second aspect, which will not be repeated here.

[0057] In a seventh aspect, an embodiment of the present application provides a communication device, the device comprising:

[0058] A sending unit, configured to send a first request message to a terminal device, where the first request message is used to request deactivation of a first bearer;

[0059] The receiving unit is used to receive a first response message when the network device requests to establish a first wireless resource bearer corresponding to the first bearer, and the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0060] The communication device can implement the method in other optional implementation manners executed by the network device described in the third aspect, thereby achieving the effects described in the third aspect, which will not be repeated here.

[0061] In an eighth aspect, an embodiment of the present application provides a communication device, the device comprising:

[0062] A receiving unit, configured to receive a second request message, where the second request message is used to request to deactivate the first bearer or to request to release a first radio resource bearer corresponding to the first bearer;

[0063] A sending unit is used to send a second response message to the terminal device, where the second response message is used to instruct the network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer.

[0064] The communication device can implement the method in other optional implementation manners executed by the network device described in the fourth aspect, thereby achieving the effects described in the fourth aspect, which will not be repeated here.

[0065] In the ninth aspect, an embodiment of the present application provides a communication device, which includes a processor and a memory, and the processor and the memory are connected to each other, wherein the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to implement the steps in the method designed in any one of the first to fourth aspects above.

[0066] In the tenth aspect, an embodiment of the present application provides a chip, comprising a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in any one of the first to fourth aspects above.

[0067] In the eleventh aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, the chip including a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps in the method designed in any one of the first to fourth aspects.

[0068] In the twelfth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program or instruction, and when the computer program or instruction is executed, it implements the steps in the method designed in any one of the first to fourth aspects above.

[0069] In the thirteenth aspect, an embodiment of the present application provides a computer program product, including a computer program or instructions, wherein the computer program or instructions, when executed, implement the steps in the method designed in any one of the first to fourth aspects above. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 It is a structural diagram of a communication system provided in an embodiment of the present application;

[0071] Figure 2 It is a flowchart of the first communication method provided in the embodiment of the present application;

[0072] Figure 3 It is a flow chart of the second communication method provided in the embodiment of the present application;

[0073] Figure 4 It is a flowchart of a third communication method provided in an embodiment of the present application;

[0074] Figure 5 It is a flowchart of a fourth communication method provided in an embodiment of the present application;

[0075] Figure 6 is a structural diagram of a communication device provided in an embodiment of the present application;

[0076] Figure 7 is a structural diagram of another communication device provided in an embodiment of the present application;

[0077] Figure 8 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0078] In order to better understand the technical solution of the present application by those skilled in the art, the technical solution in the embodiments of the present application is described below in conjunction with the drawings in the embodiments of the present application. It is obvious that the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. With respect to the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0079] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to be used as limitations to the present application. As used in the specification and appended claims of the present application, the singular expressions "one", "a kind of", "said", "above", "the" and "this" are intended to also include plural expressions, unless there is a clear indication to the contrary in the context. It should also be understood that the term "and / or" used in the present application refers to and includes any or all possible combinations of one or more listed items.

[0080] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0081] It should be noted that the terms "first", "second", "third", etc. in the specification and claims of the present application and in the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0082] In order to facilitate understanding of the embodiments of the present application, some concepts involved in the embodiments of the present application are described below. The description of these concepts includes but is not limited to the following content.

[0083] 1. Network equipment

[0084] In the embodiment of the present application, the network device may be a device for communicating with a terminal device, which is responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side. The network device may be a base station (BS) in a communication system or a device deployed in a radio access network (RAN) to provide wireless communication functions. For example, the Base Transceiver Station (BTS) in the Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) communication system, the Node B (NB) in the WCDMA communication system, the evolved Node B (eNB or eNodeB) in the LTE communication system, the next generation evolved Node B (ng-eNB) in the NR communication system, the next generation Node B (gNB) in the NR communication system, the Master Node (MN) in the dual-link architecture, the second node or secondary node (SN) in the dual-link architecture, etc., without specific limitation.

[0085] Optionally, the network device may also be other devices in the Core Network (CN), such as a Mobile Switching Center (MSC), a Media Gateway (MGW), etc.; it may also be an Access Point (AP) in a Wireless Local Area Network (WLAN), a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, etc.

[0086] Optionally, the network device may include a device that provides wireless communication functions for the terminal device, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

[0087] It should be noted that in some network deployments, the network device can be an independent node to implement all the functions of the above-mentioned base station, which may include a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU; it may also include an active antenna unit (AAU). Among them, the CU can implement some functions of the network device, and the DU can also implement some functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the RRC layer, the Service Data Adaptation Protocol (SDAP) layer, and the Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the Radio Link Control (RLC) layer, the Medium Access Control (MAC) layer, and the Physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, RF processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC layer signaling) can be considered to be sent by the DU, or sent by the DU and the AAU together. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU can be classified as a network device in the access network (Radio Access Network, RAN), or the CU can be classified as a network device in the core network, without specific limitation.

[0088] Optionally, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0089] 2. Terminal equipment

[0090] In the embodiment of the present application, the terminal device may also be referred to as a terminal, and the terminal may be a user equipment (UE), a remote / remote terminal (remote UE), a relay device (relay UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a mobile device, a user terminal, an intelligent terminal, a wireless communication device, a user agent or a user device. It should be noted that a relay device is a terminal that can provide relay forwarding services for other terminals (including remote terminals). In addition, the terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal in a next-generation communication system (such as an NR communication system) or a terminal in a future-evolved Public Land Mobile Network (PLMN), etc., without specific limitation.

[0091] Optionally, the terminal can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can be deployed on the water surface (such as ships); it can also be deployed in the air (such as airplanes, balloons or satellites).

[0092] Optionally, the terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (Industrial Control), a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical care (Remote Medical), a wireless terminal device in a smart grid (Smart Grid), a wireless terminal device in transportation safety (Transportation Safety), a wireless terminal device in a smart city (Smart City), or a wireless terminal device in a smart home (Smart Home), etc.

[0093] Furthermore, the terminal may include a device with transceiver functions, such as a chip system, wherein the chip system may include a chip and may also include other discrete devices.

[0094] 3. Activate and deactivate

[0095] Activation refers to the terminal device or network device activating the PDP bearer corresponding to a PS service, or activating the PDP of a dedicated bearer, such as the aforementioned activation of the first bearer for the first PS service and the activation of the second bearer for the second PS service.

[0096] Deactivation refers to the operation of terminating the activation state by the service provider, user or system. For example, the deactivation of the first bearer mentioned above means terminating the first bearer that has been activated. The deactivation mentioned in this application is used to deactivate the bearer corresponding to a PS service when the PS service is no longer needed.

[0097] 4. PDP bearer and RAB

[0098] A bearer is a logical path from the core network to the UE. Under 3G technology, bearers are mainly divided into data bearers and proprietary bearers. A PDP bearer is a bearer used for packet data protocol. For example, a first PDP bearer is used for a first PS service, and a second PDP bearer is used for a second PS service.

[0099] RAB is a concept used between the UE and the core network in the user plane. When a user initiates a service request, the core network requires the access network to provide the corresponding RAB according to the characteristics of the requested service, regardless of how the bearer is implemented. The benefit of this is that it simplifies the interface between the core network and the access network, and makes the two network elements more independent, facilitating independent updates of each other's technologies.

[0100] It should be noted that there may be a corresponding relationship between the PDP bearer and the RAB, for example, the first PDP bearer corresponds to the first RAB, and the second PDP bearer corresponds to the second RAB, which is beneficial to service implementation.

[0101] In combination with the above description, an exemplary description of the communication system of an embodiment of the present application is given below.

[0102] See also Figure 1 , Figure 1 Schematic diagram of a communication system provided by an embodiment of the present application. Figure 1As shown, the communication system includes a terminal device 101 and a network device 102, and the network device 102 includes a core network device 1021 and an access network device 1022. Among them, the core network device 1021 can send a first request message to the terminal device 101, and the first request message is used to request to deactivate the first bearer; the terminal device 101 responds to the first request message and deactivates the first bearer; when the access network device 1022 requests to establish a first wireless resource bearer corresponding to the first bearer, the terminal device 101 sends a first response message to the access network device 1022, and the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established. Using the above method, when the bearers between the RAB of the access network and the core network are not synchronized, the network device actively requests to deactivate a certain bearer. After the bearer has been deactivated, if the network device again requests to establish the RAB corresponding to the deactivated bearer, the terminal device will send a message of successful establishment of the RAB to the network device, thereby avoiding the network device from releasing the RRC link, thereby ensuring the sustainability of the CS service.

[0103] The embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0104] See also Figure 2 , Figure 2 is a flow chart of the first communication method provided in the embodiment of the present application, such as Figure 2 As shown, the communication method may include but is not limited to the following steps:

[0105] S201. In response to a first request message, deactivate a first bearer.

[0106] The first request message refers to a message sent by the network device to the terminal device requesting to activate the first bearer.

[0107] The first bearer refers to a logical path connecting the core network and the terminal device, which can be used for corresponding PS services. For example, the first bearer can be a bearer for opening a web page service (first PS service).

[0108] In an optional implementation, before the terminal device responds to the first request message, the network device sends the first request message to the terminal device, and accordingly, the terminal device receives the first request message, and the first request message is used to request to deactivate the first bearer. It should be noted that the first request message may be a request message sent by the core network device, that is, the core network device requests to deactivate the first bearer.

[0109] It should be noted that the network device requesting to deactivate the first bearer means that the network device deactivates the first bearer and actively requests the terminal device to also deactivate the first bearer.

[0110] In an optional implementation, before step S201, the method further includes: when running the first packet switching service and the second packet switching service, activating the first bearer for the first packet switching service and the second bearer for the second packet switching service. Before running the first packet switching service and the second packet switching service, the terminal device also initiates a combined attach registration to the network device; after the combined attach registration is successful, the CS service is run.

[0111] For example, after the terminal device successfully registers with the 3G joint attachment, it can first run a CS service (such as making a phone call). Later, if it needs to initiate opening a web page (i.e., the first PS service) and playing a video (i.e., the second PS service), the first bearer for opening the web page (e.g., recorded as bearer ID_Y) and the second bearer for playing the video (e.g., recorded as bearer ID_X) can be activated. When the service of opening the web page is no longer needed, the network device can send a message requesting to deactivate bearer ID_Y to the terminal device, and accordingly, the terminal device receives the request message. Afterwards, the terminal device can respond to the request message and deactivate bearer ID_Y.

[0112] Combined attach is a special procedure for CS and PS registration initiated by a Wideband Code Division Multiple Access (WCDMA) mobile terminal. In Long Term Evolution (LTE), "Combined" refers to the PS service of LTE and the CS service of WCDMA or GSM registered simultaneously.

[0113] In an optional implementation, deactivating the first bearer by the terminal device may include the following steps: when receiving the first request message, starting a timer; and when the timer times out, deactivating the first bearer.

[0114] In an implementation method of starting the timer when receiving the first request message, the terminal device may record the RAB corresponding to the first bearer. In this way, when receiving a message sent by the network device to establish the RAB corresponding to other bearers, the RAB corresponding to the other bearers and the RAB corresponding to the first bearer may be compared to determine whether to clear the RAB corresponding to the other bearers. Optionally, the timer may also be started after the access network device establishes the RAB corresponding to the first bearer that has been deactivated. It can be understood that since there is a corresponding relationship between the bearer and the RAB, for example, the corresponding relationship may be a mapping relationship, therefore, recording the RAB corresponding to the bearer is equivalent to also recording the bearer.

[0115] S202. When the network device requests to establish a first radio resource bearer corresponding to the first bearer, a first response message is sent to the network device, where the first response message is used to indicate that the first radio resource bearer corresponding to the first bearer has been established.

[0116] Correspondingly, the network device receives the first response message.

[0117] It is understandable that, since the first bearer has been deactivated, the RAB corresponding to the first bearer has also been released, and therefore the terminal device does not have the RAB corresponding to the first bearer. At this time, when the network device requests to establish the first wireless resource bearer corresponding to the first bearer that has been deactivated, the terminal device will send a first response message to the network device. In other words, in the case where the bearers between the RAB of the access network device and the core network device are not synchronized, when the access network device requests to establish the RAB corresponding to the deactivated bearer ID_Y, the terminal device will send a success message to the access network device to establish the RAB corresponding to the bearer ID_Y, instead of sending a failure message to establish the RAB corresponding to the bearer ID_Y. In this way, the network device will not release the RRC link, and thus will not cause CS service interruption. It should be noted that the network device's request to establish the first wireless resource bearer corresponding to the first bearer refers to the access network device's request to establish the first wireless resource bearer corresponding to the first bearer.

[0118] In an embodiment of the present application, when the bearers between the RAB of the access network and the core network are not synchronized, the network device actively requests to deactivate a bearer. After the bearer has been deactivated, if the network device requests to establish the RAB corresponding to the deactivated bearer, the terminal device will send a message to the network device indicating that the RAB has been successfully established, thereby avoiding the network device from releasing the RRC link and ensuring the sustainability of the CS service.

[0119] See also Figure 3 , Figure 3 is a flow chart of a second communication method provided in an embodiment of the present application, such as Figure 3 As shown, the communication method may include but is not limited to the following steps:

[0120] S301. The terminal device sends a second request message to the network device. Correspondingly, the network device receives the second request message, where the second request message is used to request to deactivate a first bearer or to request to release a first wireless resource bearer corresponding to the first bearer.

[0121] The second request message refers to the terminal device requesting the network device to deactivate the first bearer, or requesting to release the RAB corresponding to the first bearer.

[0122] The description of the first bearer can refer to the description in the aforementioned step S201, which will not be repeated here.

[0123] The first wireless resource bearer corresponding to the first bearer refers to: the core network device requires the access network device to provide a wireless bearer according to the characteristics of the service requested by the user to run in the terminal device.

[0124] It should be noted that when the second request message is used to request deactivation of the first bearer, the network device refers to the core network device; when the second request message is used to request the release of the first wireless resource bearer corresponding to the first bearer, the network device refers to the access network device. When the network device mentioned in this application activates or deactivates a bearer, the network device refers to the core network device; when the network device establishes or releases the wireless resource bearer corresponding to the bearer, the network device refers to the access network device.

[0125] In an optional implementation, before step S301, the method further includes: when the first packet switching service and the second packet switching service are running, activating a first bearer for the first packet switching service and a second bearer for the second packet switching service.

[0126] For example, when the terminal device initiates a phone call service (i.e., CS service), it can simultaneously activate a first bearer (recorded as bearer ID_Y) for opening a web page (i.e., a first PS service) and a second bearer (recorded as bearer ID_X) for playing a video (i.e., a second PS service). Optionally, if the service of opening a web page is no longer needed, the terminal device can send a message requesting to deactivate bearer ID_Y to the core network device, and the core network device receives the request message accordingly.

[0127] S302. The network device sends a second response message to the terminal device. Correspondingly, the terminal device receives the second response message, where the second response message is used to instruct the network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer.

[0128] The second response message refers to a message sent by the network device to the terminal device to activate (ie, not deactivate) the first bearer, or to establish (ie, not release) the first RAB corresponding to the first bearer.

[0129] S303. The terminal device deactivates the first bearer.

[0130] In an optional implementation, when the first wireless resource bearer corresponding to the first bearer has been established, the terminal device can locally deactivate the first bearer. That is, when the terminal device receives the second response message, that is, the network device does not deactivate the first bearer or does not release the first wireless resource bearer corresponding to the first bearer, the terminal device can locally deactivate the first bearer.

[0131] For example, after the terminal device sends a message to the network device requesting to deactivate bearer ID_Y or to release the RAB corresponding to bearer ID_Y, if the network device does not deactivate bearer ID_Y or release the RAB corresponding to bearer ID_Y, the terminal device will locally deactivate bearer ID_Y.

[0132] In an optional implementation, the terminal device may also start a timer when the receiving network device receives the second request message; when the timer times out, the first bearer is locally deactivated. Optionally, the timer may also be started after the access network device establishes the RAB corresponding to the deactivated first bearer.

[0133] In an embodiment of the present application, when the bearers between the RAB of the access network and the core network are not synchronized, the terminal device actively requests to deactivate a bearer or release the RAB corresponding to a bearer. If the network device does not release the RAB corresponding to the bearer after receiving the request, the terminal device can locally deactivate the bearer so that the RAB corresponding to the bearer is successfully released, thereby avoiding the network device from releasing the RRC link, thereby ensuring the sustainability of the CS service.

[0134] See also Figure 4 , Figure 4 is a flow chart of the third communication method provided in the embodiment of the present application. Figure 2 and Figure 3 The specific implementation process of the method described in the embodiment also includes the method executed by the terminal device and the network device when the bearer synchronization between the RAB of the access network and the core network is successful. Figure 4 As shown, the communication method includes but is not limited to the following steps:

[0135] S401: When a first packet switching service and a second packet switching service are running, activate a first bearer for the first packet switching service and a second bearer for the second packet switching service.

[0136] The first packet switching service and the second packet switching service are the first PS service and the second PS service mentioned above, which will not be described in detail here.

[0137] Optionally, in an implementation of activating a first bearer for a first packet switching service and a second bearer for a second packet switching service, the terminal device may send a request to the network device to activate the first bearer and the second bearer, or the network device may send a request to the terminal device to activate the first bearer and the second bearer.

[0138] S402. The network device sends a first request message to the terminal device, where the first request message is used to request deactivation of the first bearer.

[0139] Correspondingly, the terminal device receives the first request message.

[0140] S403. The terminal device responds to the first request message and deactivates the first bearer; when the bearer synchronization between the RAB of the access network and the core network is successful (i.e., the network is normal), execute steps S404a-405a or execute steps S404b-S405b; when the bearer synchronization between the RAB of the access network and the core network is not synchronized (i.e., the network is abnormal), execute step S404c.

[0141] In an optional implementation, the specific description of steps S401 to S403 can refer to the relevant description in step S201, which will not be repeated here.

[0142] In an optional implementation, after the terminal device deactivates the first bearer, the following steps may be included: starting a timer; and when the timer times out, deactivating the first bearer.

[0143] In the implementation method of starting the timer, the terminal device may record the RAB corresponding to the first bearer. Taking the first bearer as the aforementioned bearer ID_Y as an example, the terminal device may record the RAB corresponding to the bearer ID_Y as M when receiving the first request message. In this way, when the terminal device receives a message sent by the network device to establish other RABs, the other RABs may be compared with the RAB corresponding to the first bearer to determine whether to clear the other RABs. Optionally, the timer may also be started after the access network device establishes the RAB corresponding to the first bearer that has been deactivated.

[0144] S404a. The network device sends a first message to the terminal device, where the first message is used to indicate that a first wireless resource bearer corresponding to the first bearer has been released.

[0145] Correspondingly, the terminal device receives the first message.

[0146] S405a. The terminal device releases the first wireless resource bearer corresponding to the first bearer.

[0147] In an optional implementation, when the network is normal, the network device may release the first radio resource bearer corresponding to the first bearer.

[0148] In an optional implementation, after the network device releases the first radio resource bearer corresponding to the first bearer, the terminal device may clear the RAB corresponding to the aforementioned recorded bearer ID_Y and stop the timer.

[0149] S404b: The terminal device establishes a third radio resource bearer with the network device in response to the third request message.

[0150] Correspondingly, the network device sends a third request message to the terminal device, where the third request message is used to request establishment of a third wireless resource bearer.

[0151] S405b: If the third radio resource bearer is the same as the first radio resource bearer, release the third radio resource bearer.

[0152] Optionally, if the third radio resource bearer is different from the first bearer radio resource, it means that the third radio resource bearer belongs to the RAB corresponding to the newly established bearer.

[0153] Taking the first bearer as the aforementioned bearer ID_Y as an example, assuming that the terminal device records the RAB corresponding to the bearer ID_Y as M, when the network device establishes a new RAB (recorded as the third wireless resource bearer), the terminal device can compare the identification ID corresponding to the third wireless resource bearer (recorded as N) with the recorded M. If they are the same (i.e., M=N), the third wireless resource bearer is cleared (i.e., the third wireless resource bearer is released); if they are different (i.e., M≠N), it means that the third wireless resource bearer belongs to the RAB corresponding to the newly established bearer.

[0154] S404c: When the network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is sent to the network device, where the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0155] In an optional implementation, the specific description of step S404c can refer to the description of step S202, which will not be repeated here.

[0156] In the embodiment of the present application, regardless of whether the network is normal, the RAB corresponding to the deactivated bearer can be successfully established or released normally, so that the network device does not release the RRC link, and the terminal device can perform normal CS services.

[0157] See also Figure 5 , Figure 5 is a schematic diagram of a fourth communication method provided in an embodiment of the present application, which is similar to Figure 4 The difference is that this method not only specifically describes the steps performed by the network device as the steps performed by the access network device and the steps performed by the core network device, but also describes the interaction between the core network device and / or the access network device and the internal module of the terminal device. Figure 5As shown, the terminal device mainly includes three modules, the non-access layer (Non-Access-Stratum, NAS) module, the high-level (for example, denoted as AP) module and the wireless resource control (denoted as W-Radio Resource Control, WRRC) module under 3G (or called the access layer (Access-Stratum, AS) module). Among them, the WRRC module is a module that interacts with the access network. WRRC maintains a cache to record the RAB established by the network; the NAS module is a module that interacts with the core network, and is mainly used to interact with bearer-related information; and the AP is a module that interacts with the user interface (User Interface, UI). In this module, only when a certain bearer is activated or deactivated successfully can the next activation or deactivation process be carried out. As shown Figure 5 As shown, the communication method may include but is not limited to the following steps:

[0158] 501. The terminal device successfully initiates a COMBINED ATTACH registration to the access network device through the WRRC module and initiates a CS service.

[0159] 502. The terminal device receives a request from the core network device through the NAS module to activate the PDP bearer ID_Y for the first PS service and the PDP bearer ID_X for the second PS service. For example, the message may be a PDP ACTIVATE REQ message including a request to activate bearer ID_Y and / or bearer ID_X.

[0160] 503. In response to the request in 502, the NAS module sends a message to the core network device indicating that bearer ID_X and bearer ID_Y have been activated. For example, the message may be a PDP ACTIVATE ACCEPT message, including that bearer ID_Y and / or bearer ID_X have been activated.

[0161] It is understandable that 502 can correspond to the previous Figure 4 S401 in.

[0162] 504. The NAS module replies to the higher layer with a message indicating that the PDP bearer ID_X and the PDP bearer ID_Y are activated successfully. For example, the message may be an ACT PDP SUCCESS message, including that the bearer ID_Y and / or the bearer ID_X are activated successfully.

[0163] 505. The access network device sends a message to the WRRC module to establish the RAB corresponding to bearer ID_X and bearer ID_Y; accordingly, the WRRC module receives the message. For example, the message may be a RADIOBEARERSETUP message, which includes establishing the RAB corresponding to bearer ID_Y and / or the RAB corresponding to bearer ID_X.

[0164] 506. The WRRC module sends a message indicating that RAB establishment is completed to the access network device. For example, the message may be a RADIOBEARERSETUPCOMPLETE message, which includes that the RAB corresponding to bearer ID_Y and / or the RAB corresponding to bearer ID_X is established.

[0165] 507. When the first PS service corresponding to bearer ID_Y is no longer needed, a request to deactivate bearer ID_Y is sent to the NAS module through a higher layer. For example, the message may be a DEACT PDP REQ message including a request to deactivate bearer ID_Y.

[0166] 508. After receiving the request to deactivate the bearer ID_Y, the NAS module sends the request to the core network device. For example, the message may be a PDP DEACTIVATE REQ message, which includes the request to deactivate the bearer ID_Y.

[0167] 509. The NAS module receives a message from the core network device indicating that bearer ID_Y has been successfully deactivated. For example, the message may be a PDP DEACTIVATE ACCEPT message, which includes that bearer ID_Y has been deactivated.

[0168] It can be understood that 508-509 can correspond to the aforementioned step S201.

[0169] 510. The NAS module records the RAB corresponding to the deactivated bearer ID_Y as M, and starts the timer. At this time, there are four situations:

[0170] Scenario 1: If the network is in a normal state, the WRRC module receives a message from the access network device to release the RAB corresponding to the bearer ID_Y. For example, the message may be a RADIO BEARER RELEASE message, including the RAB corresponding to the bearer ID_Y (corresponding to Figure 5 511a in the figure). After that, the WRRC module sends a message that the RAB release corresponding to bearer ID_Y is completed to the access network device. For example, the message may be a RADIO BEARER RELEASE COMPLETE message, which includes the RAB release completion corresponding to bearer ID_Y (corresponding to Figure 5Then, the WRRC module sends a message to the NAS module that the RAB corresponding to bearer ID_Y has been released. For example, the message may be a RAB_REL_IND message, including that the RAB corresponding to bearer ID_Y has been released (corresponding to Figure 5 After receiving the message that the RAB corresponding to the bearer ID_Y has been released, the NAS module compares the ID carried in the message with the previously recorded M (corresponding to Figure 5 If the same, then the bearer is successfully deactivated, and the timer is stopped. For example, the message replied to the higher layer may be a DEACT PDP SUCCESS message, including the bearer ID_Y successfully deactivated (corresponding to Figure 5 515 in the above table).

[0171] It can be understood that the process of interaction between the core network device and / or access network device and the internal module of the terminal device described in scenario one can correspond to the aforementioned steps S404a-S405a.

[0172] Scenario 2: If the WRRC module receives a message from the access network device to establish another new RAB (for example, the RAB corresponding to bearer ID_Z). For example, the message may be a RADIO BEARER SETUP message, including the establishment of the RAB corresponding to bearer ID_Z (corresponding to Figure 5 511b in ). Afterwards, the WRRC module sends a message to the access network device that the RAB corresponding to bearer ID_Z has been established. For example, the message may be a RADIO BEARER SETUP COMPLETE message, including that the RAB corresponding to bearer ID_Z has been established (corresponding to Figure 5 Then, the WRRC module sends a message to NAS that the RAB corresponding to bearer ID_Z has been established. For example, the message may be a RAB_EST_IND message, including that the RAB corresponding to bearer ID_Z has been established (corresponding to Figure 5 After receiving the message, the NAS module first compares ID_Z with the recorded M (corresponding to Figure 5 If they are not equal, it means that the RAB corresponding to bearer ID_Z belongs to a new RAB. If they are equal, it means that an abnormality occurs in the network and the situation described in situation three is entered.

[0173] It can be understood that the process of interaction between the core network device and / or access network device and the internal module of the terminal device described in scenario 2 can correspond to the aforementioned steps S404b-S405b.

[0174] Scenario 3: If the network is abnormal, when the access network device re-establishes the RAB corresponding to the bearer ID_Y that has been deactivated, for example, the access network device sends a RADIO BEARER SETUP message to the terminal device, including the establishment of the RAB corresponding to the bearer ID_Y (corresponding to Figure 5 511c in the figure), since bearer ID_Y has been deactivated at this time, the first bearer is not in the NAS module of the terminal device. However, since the WRRC module maintains a cache by itself and records the RAB established by the access network device, the RAB recorded in the module is not cleared. Therefore, the WRRC module will reply to the access network device that the RAB is successfully established, for example, replying to the RADIO BEARER SETUP COMPLETE message, including that the RAB corresponding to bearer ID_Y has been established (corresponding to Figure 5 512c in the figure). Afterwards, the WRRC module sends a message to the NAS module that the RAB corresponding to bearer ID_Y has been established. For example, the message may be a RAB_EST_IND message, including that the RAB corresponding to bearer ID_Y has been established (corresponding to Figure 5 After receiving the message, the NAS module first compares ID_Y with the recorded M (corresponding to Figure 5 514c), if they are equal, the NAS module sends a message to the WRRC module to clear the RAB. For example, the message may be a RAB_CLEAR_IND message, including clearing the RAB corresponding to the bearer ID_Y (corresponding to Figure 5 515c in the figure) to request the WRRC module to clear the RAB corresponding to bearer ID_Z. At the same time, the upper layer is replied to successfully deactivate the bearer and stop the timer. For example, the message replied to the upper layer may be a DEACT PDP SUCCESS message, including the success of deactivating bearer ID_Y (corresponding to Figure 5 It can be understood that the situation in which the newly created RAB in the above situation 2 is equal to the recorded RAB means that the access network device re-establishes the RAB corresponding to the deactivated bearer ID_Y.

[0175] It can be understood that the process of interaction between the core network device and / or access network device and the internal module of the terminal device described in scenario three can correspond to the aforementioned step S404c.

[0176] Scenario 4: If the NAS module receives a message from the core network device to deactivate bearer ID_Y, for example, a PDP DEACTIVATE ACCEPT message (corresponding to Figure 5After 509 in the above example, the access network device does not release the RAB corresponding to the bearer or does not release the RRC link, and the timer will time out. When the timer times out, the terminal device locally activates the bearer ID_Y (corresponding to Figure 5 Then, the NAS module will send a message to the WRRC module to clear the RAB again. For example, the message may be a RAB_CLEAR_IND message, which includes clearing the RAB corresponding to the bearer ID_Y (corresponding to Figure 5 515d in the figure) to request the WRRC module to clear the RAB corresponding to bearer ID_Y and reply to the upper layer to successfully activate the bearer ID_Y (corresponding to Figure 5 515 in the above table).

[0177] It can be understood that the process of interaction between the core network device and / or access network device and the internal module of the terminal device described in scenario 4 can correspond to the aforementioned step S303.

[0178] In an embodiment of the present application, through the interaction between the internal module of the terminal device and the network device, regardless of whether the network is normal (i.e., compatible with network abnormalities), the terminal device will not send a message of RAB establishment failure to the network device, thereby avoiding the network device from releasing the RRC link, and enabling the terminal device to perform normal CS services.

[0179] It should be noted that the above Figure 2 to Figure 5 The method shown can be applied not only to the scenario where CS services and PS services coexist under 3G technology, but also to the scenario where only multiple PS services exist. When applied to the scenario where only multiple PS services exist, regardless of whether the network is normal, the RAB corresponding to a certain bearer (for example, the second bearer corresponding to the second PS service) that has been deactivated can be successfully established or released normally, so that the network device does not release the RRC link, thereby ensuring the normal operation of other PS services.

[0180] See also Figure 6 , Figure 6 Schematic diagram of a communication device provided in an embodiment of the present application. Figure 6 As shown, the communication device may include a processing unit 601 and a sending unit 602 .

[0181] In an optional implementation, the processing unit 601 is configured to deactivate the first bearer in response to the first request message;

[0182] The sending unit 602 is used to send a first response message to the network device when the network device requests to establish a first wireless resource bearer corresponding to the first bearer, wherein the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0183] In another optional implementation, the sending unit 602 is used to send a second request message to the network device, where the second request message is used to request to deactivate the first bearer or request to release the first radio resource bearer corresponding to the first bearer;

[0184] The processing unit 601 is configured to deactivate the first bearer when a first radio resource bearer corresponding to the first bearer has been established.

[0185] In an optional implementation, the device further includes a receiving unit 603, configured to receive a first message after the processing unit 601 deactivates the first bearer, wherein the first message is used to indicate that a first radio resource bearer corresponding to the first bearer has been released;

[0186] The processing unit 601 is further configured to release the first radio resource bearer corresponding to the first bearer.

[0187] In an optional implementation, the processing unit 601 is further configured to activate a first bearer for the first packet switched service and a second bearer for the second packet switched service when running the first packet switched service and the second packet switched service.

[0188] In an optional implementation, the processing unit 601 is further configured to establish a third radio resource bearer with the network device in response to the third request message;

[0189] If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

[0190] In an optional implementation manner, when used to deactivate the first bearer, the processing unit 601 is specifically configured to:

[0191] When receiving the first request message, starting a timer;

[0192] When the timer times out, the first bearer is deactivated.

[0193] It can be understood that the specific implementation of each unit in the communication device provided in the embodiment of the present application and the beneficial effects that can be achieved can be referred to the description of the aforementioned communication method embodiment, and will not be repeated here.

[0194] See also Figure 7 , Figure 7 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. Figure 7 As shown, the device may include a sending unit 701 and a receiving unit 702 .

[0195] In an optional implementation, the sending unit 701 is configured to send a first request message to a terminal device, where the first request message is used to request deactivation of a first bearer;

[0196] The receiving unit 702 is used to receive a first response message when the network device requests to establish a first wireless resource bearer corresponding to the first bearer, wherein the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0197] In another optional implementation, the receiving unit 702 is configured to receive a second request message, where the second request message is used to request to deactivate the first bearer or to request to release a first radio resource bearer corresponding to the first bearer;

[0198] The sending unit 701 is used to send a second response message to the terminal device, where the second response message is used to instruct the network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer.

[0199] In an optional implementation, after sending the first request message to the terminal device, the sending unit 701 is further used to send a first message to the terminal device, where the first message is used to indicate that a first wireless resource bearer corresponding to the first bearer has been released.

[0200] In an optional embodiment, the device further includes:

[0201] The processing unit 703 is configured to activate a first bearer for the first packet switched service and a second bearer for the second packet switched service when the first packet switched service and the second packet switched service are running.

[0202] In an optional implementation, the processing unit 703 is further configured to send a third request message to the terminal device, where the third request message is used to request establishment of a third radio resource bearer;

[0203] If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

[0204] It can be understood that the specific implementation of each unit in the communication device provided in the embodiment of the present application and the beneficial effects that can be achieved can be referred to the description of the aforementioned communication method embodiment, and will not be repeated here.

[0205] See also Figure 8 , Figure 8 801 , a memory 802 , and a communication bus for connecting the processor 801 and the memory 802 .

[0206] The communication device may also include a communication interface, which may be used to receive and send data.

[0207] The memory 802 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM) or a portable read-only memory (CD-ROM), and is used to store the executed program code and the transmitted data.

[0208] The processor 801 may be one or more central processing units (CPUs). When the processor 801 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0209] In an optional implementation, the processor 801 may be used to execute a computer program or instruction 803 stored in the memory 802 to perform operations of the terminal device in the above communication method, for example:

[0210] In response to the first request message, deactivate the first bearer;

[0211] When the network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is sent to the network device, where the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0212] In this implementation manner, the processor 801 is further configured to, after deactivating the first bearer, receive a first message, where the first message is used to indicate that a first radio resource bearer corresponding to the first bearer has been released;

[0213] Release the first radio resource bearer corresponding to the first bearer.

[0214] In this implementation, the processor 801 is further configured to, when running a first packet switched service and a second packet switched service, activate a first bearer for the first packet switched service and a second bearer for the second packet switched service.

[0215] In this implementation manner, the processor 801 is further configured to establish a third radio resource bearer with the network device in response to the third request message;

[0216] If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

[0217] In this implementation manner, when the processor 801 is used to deactivate the first bearer, it is specifically used to:

[0218] When receiving the first request message, starting a timer;

[0219] When the timer times out, the first bearer is deactivated.

[0220] In another optional implementation, the processor 801 may be used to execute a computer program or instruction 803 stored in the memory 802 to perform the operation of the network device in the above communication method, for example:

[0221] Sending a first request message to a terminal device, where the first request message is used to request deactivation of a first bearer;

[0222] When the network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is received, where the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established.

[0223] In this implementation, the processor 801 is further used to send a first message to the terminal device after sending the first request message to the terminal device, where the first message is used to indicate that a first wireless resource bearer corresponding to the first bearer has been released.

[0224] In this implementation, the processor 801 is further configured to, when running a first packet switched service and a second packet switched service, activate a first bearer for the first packet switched service and a second bearer for the second packet switched service.

[0225] In an optional implementation, the processor 801 is further configured to send a third request message to the terminal device, where the third request message is used to request establishment of a third radio resource bearer;

[0226] If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

[0227] In another optional implementation, the processor 801 may be used to execute the computer program or instruction 803 stored in the memory 802 to perform the operation of the terminal device in the above communication method, for example:

[0228] Sending a second request message to the network device, where the second request message is used to request deactivation of the first bearer or to request release of a first radio resource bearer corresponding to the first bearer;

[0229] When a first radio resource bearer corresponding to the first bearer has been established, the first bearer is deactivated.

[0230] In this implementation, the processor 801 is further configured to, when running a first packet switched service and a second packet switched service, activate a first bearer for the first packet switched service and a second bearer for the second packet switched service.

[0231] In yet another optional implementation, the processor 801 may be used to execute the computer program or instruction 803 stored in the memory 802 to perform the operation of the network device in the above communication method, for example:

[0232] receiving a second request message, where the second request message is used to request deactivation of a first bearer or to request release of a first radio resource bearer corresponding to the first bearer;

[0233] A second response message is sent to the terminal device, where the second response message is used to instruct the network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer.

[0234] In this implementation, the processor 801 is further configured to, when running a first packet switched service and a second packet switched service, activate a first bearer for the first packet switched service and a second bearer for the second packet switched service.

[0235] It can be understood that the specific implementation of the processor 801 and the beneficial effects that can be achieved can be referred to the description of the aforementioned communication method embodiment, and will not be repeated here.

[0236] An embodiment of the present application further provides a chip, which includes: a processor, a memory, and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

[0237] An embodiment of the present application also provides a chip module, including a transceiver component and a chip, the chip including a processor, a memory and a computer program or instructions stored in the memory, wherein the processor executes the computer program or instructions to implement the steps described in the above method embodiment.

[0238] An embodiment of the present application also provides a computer-readable storage medium storing a computer program or instructions, which implements the steps described in the above method embodiment when executed.

[0239] The embodiment of the present application also provides a computer program product, including a computer program or instructions, which implement the steps described in the above method embodiment when executed.

[0240] In the above embodiments, the embodiments of the present application have different focuses on the description of each embodiment. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0241] The various devices and products described in the above embodiments include units / units, which may be software units / units or hardware units / units, or may be partially software units / units and partially hardware units / units. For example, for each device or product that applies to or integrates a chip, each unit / unit contained therein can be implemented in the form of hardware such as circuits, or at least some of the units / units can be implemented in the form of software programs, which run on the integrated processor inside the chip, and the remaining units / units can be implemented in the form of hardware such as circuits; for each device or product that applies to or integrates a chip module, each unit / unit contained therein can be implemented in the form of hardware such as circuits, and different units / units can be located in the same part of the chip module (for example, a chip, a circuit unit, etc.) or in different components, at least some / units can be implemented in the form of software programs, which run on the integrated processor inside the chip module, and the remaining units / units can be implemented in the form of hardware such as circuits; for each device or product that applies to or integrates a terminal, the units / units contained therein can be implemented in the form of hardware such as circuits, and different units / units can be located in the same component (for example, a chip, a circuit unit, etc.) or in different components in the terminal, or at least some of the units / units can be implemented in the form of software programs, which run on the integrated processor inside the terminal, and the remaining units / units can be implemented in the form of hardware such as circuits.

[0242] The steps of the method or algorithm described in the embodiment of the present application can be implemented in a hardware manner, or can be implemented by a processor executing a software instruction. The software instruction can be composed of corresponding software units, and the software unit can be stored in a random access memory (Random Access Memory, RAM), a flash memory, a read-only memory (Read-Only Memory, ROM), an erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), a register, a hard disk, a mobile hard disk, a read-only compact disk (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor so that the processor can read information from the storage medium and can write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an application specific integrated circuit (Application Specific Integrated Circuit, ASIC). In addition, the ASIC can be located in a terminal device or a network device. Of course, the processor and the storage medium can also be present in a terminal device or a network device as discrete components.

[0243] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0244] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation method of the embodiments of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A communication method, characterized in that: The method comprises: After the joint attachment registration is successful under 3G, the circuit interaction service is operated; the circuit interaction service is carried by the radio resource control RRC link; When a first packet switching service and a second packet switching service are running, activating a first bearer for the first packet switching service and a second bearer for the second packet switching service; In response to the first request message, deactivate a first bearer; the first bearer is a packet data protocol PDP bearer corresponding to the first packet switched PS service; When the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, when the access network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is sent to the access network device, where the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established, and the first wireless resource bearer is a wireless resource bearer provided by the access network and associated with the first PS service; when the first wireless resource bearer has been established, the RRC link remains not released.

2. A communication method, characterized in that: The method comprises: When initiating a circuit interaction service, activating a first bearer for a first packet switching service and a second bearer for a second packet switching service; the circuit interaction service is carried via an RRC link; When the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, sending a second request message to the network device, where the second request message is used to request to deactivate the first bearer or to request to release a first radio resource bearer corresponding to the first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; the first radio resource bearer is a radio resource bearer provided by the access network and associated with the first PS service; When a first wireless resource bearer corresponding to the first bearer has been established, the first bearer is deactivated; when the first wireless resource bearer has been established, the RRC link remains not released.

3. The method according to claim 1, characterized in that After deactivating the first bearer, the method further includes: receiving a first message, where the first message is used to indicate that a first radio resource bearer corresponding to the first bearer has been released; Release the first radio resource bearer corresponding to the first bearer.

4. The method according to claim 1 or 2, characterized in that: The method further comprises: When a first packet switching service and a second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

5. The method according to claim 1 or 3, characterized in that: The method further comprises: In response to the third request message, establishing a third radio resource bearer with the access network device; If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

6. The method according to claim 1, characterized in that The deactivating the first bearer includes: When receiving the first request message, starting a timer; When the timer times out, the first bearer is deactivated.

7. A communication method, characterized in that: The method comprises: When initiating a circuit interaction service, activating a first bearer for a first packet switching service and a second bearer for a second packet switching service; the circuit interaction service is carried via an RRC link; Sending a first request message to a terminal device, where the first request message is used to request deactivation of a first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; When the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, when the access network device requests to establish a first wireless resource bearer corresponding to the first bearer, a first response message is received, and the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established; the first wireless resource bearer is a wireless resource bearer provided by the access network and associated with the first PS service; when the first wireless resource bearer has been established, the RRC link remains not released.

8. A communication method, characterized in that: The method comprises: When initiating a circuit interaction service, activating a first bearer for a first packet switching service and a second bearer for a second packet switching service; the circuit interaction service is carried via an RRC link; When the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, receiving a second request message, where the second request message is used to request to deactivate the first bearer or to request to release a first radio resource bearer corresponding to the first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; the first radio resource bearer is a radio resource bearer associated with the first PS service provided by the access network; A second response message is sent to the terminal device, where the second response message is used to instruct the access network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer; when the first wireless resource bearer has been established, the RRC link remains not released.

9. The method according to claim 7, characterized in that: After sending the first request message to the terminal device, the method further includes: A first message is sent to a terminal device, where the first message is used to indicate that a first wireless resource bearer corresponding to the first bearer has been released.

10. The method according to claim 7 or 8, characterized in that: The method further comprises: When a first packet switching service and a second packet switching service are operated, a first bearer for the first packet switching service and a second bearer for the second packet switching service are activated.

11. The method according to claim 7 or 9, characterized in that: The method further comprises: Sending a third request message to the terminal device, where the third request message is used to request establishment of a third radio resource bearer; If the third wireless resource bearer is the same as the first wireless resource bearer, release the third wireless resource bearer.

12. A communication device, characterized in that: The device comprises: A processing unit, configured to run a circuit interaction service after the joint attachment registration is successful under 3G; the circuit interaction service is carried through an RRC link; The processing unit is further configured to activate a first bearer for the first packet switching service and a second bearer for the second packet switching service when the first packet switching service and the second packet switching service are running; The processing unit is further configured to, in response to the first request message, deactivate a first bearer; the first bearer being a packet data protocol PDP bearer corresponding to a first packet switched PS service; A sending unit is used to send a first response message to the access network device when the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, and when the access network device requests to establish a first wireless resource bearer corresponding to the first bearer, wherein the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established; the first wireless resource bearer is a wireless resource bearer associated with the first PS service provided by the access network; when the first wireless resource bearer has been established, the RRC link remains not released.

13. A communication device, characterized in that: The device comprises: A processing unit, configured to activate a first bearer for a first packet switching service and a second bearer for a second packet switching service when initiating a circuit interaction service; the circuit interaction service is carried via an RRC link; a sending unit, configured to send a second request message to a network device when a core network device determines that the first bearer has been deactivated and an access network device determines that the first bearer exists, wherein the second request message is used to request deactivation of the first bearer or release of a first radio resource bearer corresponding to the first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; the first radio resource bearer is a radio resource bearer associated with the first PS service provided by the access network; The processing unit is further used to deactivate the first bearer when a first wireless resource bearer corresponding to the first bearer has been established; when the first wireless resource bearer has been established, the RRC link remains not released.

14. A communication device, characterized in that: The device comprises: A processing unit, configured to activate a first bearer for a first packet switching service and a second bearer for a second packet switching service when initiating a circuit interaction service; the circuit interaction service is carried via an RRC link; A sending unit, configured to send a first request message to a terminal device, wherein the first request message is used to request to deactivate a first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; A receiving unit is used to receive a first response message when the core network device determines that the first bearer has been deactivated and the access network device determines that the first bearer exists, and when the access network device requests to establish a first wireless resource bearer corresponding to the first bearer, wherein the first response message is used to indicate that the first wireless resource bearer corresponding to the first bearer has been established; the first wireless resource bearer is a wireless resource bearer associated with the first PS service provided by the access network; when the first wireless resource bearer has been established, the RRC link remains not released.

15. A communication device, characterized in that: The device comprises: A processing unit, configured to activate a first bearer for a first packet switching service and a second bearer for a second packet switching service when initiating a circuit interaction service; the circuit interaction service is carried via an RRC link; A receiving unit, configured to receive a second request message when a core network device determines that the first bearer has been deactivated and an access network device determines that the first bearer exists, wherein the second request message is used to request deactivation of the first bearer or release of a first radio resource bearer corresponding to the first bearer; the first bearer is a packet data protocol PDP bearer corresponding to a first packet switched PS service; the first radio resource bearer is a radio resource bearer associated with the first PS service provided by the access network; A sending unit is used to send a second response message to the terminal device, wherein the second response message is used to instruct the access network device to activate the first bearer or establish a first wireless resource bearer corresponding to the first bearer; when the first wireless resource bearer has been established, the RRC link remains not released.

16. A communication device, characterized in that: The invention comprises a processor and a memory, wherein the processor and the memory are connected to each other, wherein the memory is used to store a computer program, and the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the communication method as claimed in any one of claims 1 to 6, or to execute the communication method as claimed in any one of claims 7 to 11.

17. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which includes program instructions. When the program instructions are executed by a processor, the processor executes the communication method as described in any one of claims 1 to 6, or the processor executes the communication method as described in any one of claims 7 to 11.

18. A chip, characterized in that: The chip includes a processor, and the processor executes the method according to any one of claims 1 to 6, or executes the method according to any one of claims 7 to 11.

19. A chip module, characterized in that: The chip module includes a transceiver component and a chip, the chip includes a processor, and the processor executes the method according to any one of claims 1 to 6, or executes the method according to any one of claims 7 to 11.

Images