CN112205060B

CN112205060B - Wireless communication method, access network device, terminal device and core network device

Info

Publication number: CN112205060B
Application number: CN201880093977.9A
Authority: CN
Inventors: 刘建华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-06-15
Filing date: 2018-06-15
Publication date: 2023-06-23
Anticipated expiration: 2038-06-15
Also published as: WO2019237359A1; CN112205060A

Abstract

The embodiment of the application provides a wireless communication method, access network equipment, terminal equipment and core network equipment, wherein the access network equipment can determine the state of the terminal equipment according to whether first indication information indicating that first data to be transmitted currently exists or not, so that paging times of the terminal equipment are reduced, and signaling overhead is further reduced. The method comprises the following steps: the access network equipment determines the state of the terminal equipment according to whether first indication information indicating that first data to be transmitted currently exists or not, wherein the first data are uplink data or downlink data.

Description

Wireless communication method, access network device, terminal device and core network device

Technical Field

The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, an access network device, a terminal device, and a core network device.

Background

When the terminal equipment does not need to carry out data interaction with the network equipment, the terminal equipment can enter a non-activated state, the terminal equipment keeps the context of the terminal equipment when in the non-activated state, and when uplink and downlink data transmission is needed, the terminal equipment initiates a recovery process to enter a connection state, and the terminal equipment and the network equipment can carry out data receiving and transmitting in the connection state.

When external data needs to be sent to the terminal equipment in the inactive state, in order to provide better service for external clients, the network equipment can first know whether the current terminal equipment is in a reachable state, and at this time, a scene of paging the terminal equipment for multiple times may occur, thereby causing some unnecessary signaling overhead.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, access network equipment, terminal equipment and core network equipment, wherein the access network equipment can determine the state of the terminal equipment according to whether first indication information indicating that first data to be transmitted currently exists or not, so that paging times of the terminal equipment are reduced, and signaling overhead is further reduced.

In a first aspect, a wireless communication method is provided, including:

the access network equipment determines the state of the terminal equipment according to whether first indication information indicating that first data to be transmitted currently exists or not, wherein the first data are uplink data or downlink data.

In a second aspect, a wireless communication method is provided, including:

the terminal equipment sends a connection recovery request to the access network equipment;

the terminal equipment receives first indication information which is sent by the access network equipment and indicates the state of the terminal equipment, wherein the first indication information is the indication information which is sent by the access network equipment after the state of the terminal equipment is determined according to whether second indication information which indicates that first data to be transmitted currently exists, and the first data is uplink data or downlink data;

And the terminal equipment determines the maintained state according to the first indication information.

In a third aspect, a wireless communication method is provided, including:

the method comprises the steps that core network equipment sends first information to access network equipment, wherein the first information comprises first indication information or does not comprise first indication information, the first indication information is used for indicating that first data aiming at terminal equipment exist at present to be transmitted, the first data are uplink data or downlink data, and the first information is used for indicating the access network equipment to determine the state of the terminal equipment according to whether the first indication information exists or not.

In a fourth aspect, an access network device is provided for performing the method of the first aspect or implementations thereof.

In particular, the access network device comprises functional modules for performing the method of the first aspect or implementations thereof described above.

In a fifth aspect, a terminal device is provided for performing the method of the second aspect or each implementation manner thereof.

Specifically, the terminal device comprises functional modules for performing the method of the second aspect or implementations thereof.

In a sixth aspect, a core network device is provided for performing the method of the third aspect or implementations thereof.

Specifically, the core network device comprises functional modules for performing the method of the third aspect or implementations thereof.

In a seventh aspect, an access network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method in the first aspect or various implementation manners thereof.

In an eighth aspect, a terminal device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect or implementations thereof described above.

In a ninth aspect, a core network device is provided, comprising a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the third aspect or implementations thereof.

In a tenth aspect, a chip is provided for implementing the method in any one of the first to third aspects or each implementation thereof.

Specifically, the chip includes: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method as in any one of the first to third aspects or implementations thereof described above.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program for causing a computer to perform the method of any one of the above first to third aspects or implementations thereof.

In a twelfth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the above first to third aspects or implementations thereof.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-described first to third aspects or implementations thereof.

By the technical scheme, the access network equipment can determine the state of the terminal equipment according to whether the first indication information indicating that the first data to be transmitted currently exists or not, so that the paging times of the terminal equipment are reduced, and signaling overhead is further reduced.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application.

Fig. 2 is a schematic flow chart of a wireless communication method provided in an embodiment of the present application.

Fig. 3 is a schematic flow chart of another wireless communication method provided in an embodiment of the present application.

Fig. 4 is a schematic flow chart of yet another wireless communication method provided in an embodiment of the present application.

Fig. 5 is a schematic flow chart of yet another wireless communication method provided in an embodiment of the present application.

Fig. 6 is a schematic block diagram of an access network device according to an embodiment of the present application.

Fig. 7 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a core network device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a chip provided according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) systems, general packet radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) systems, LTE frequency division duplex (Frequency Division Duplex, FDD) systems, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) communication systems or 5G systems, or later versions of communication systems.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area. Alternatively, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. "terminal device" as used herein includes, but is not limited to, a connection via a wireline, such as via a public-switched telephone network (Public Switched Telephone Networks, PSTN), a digital subscriber line (Digital Subscriber Line, DSL), a digital cable, a direct cable connection; and/or another data connection/network; and/or via a wireless interface, e.g., for a cellular network, a wireless local area network (Wireless Local Area Network, WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and/or means of the other terminal device arranged to receive/transmit communication signals; and/or internet of things (Internet of Things, ioT) devices. Terminal devices arranged to communicate over a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (Personal Communications System, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDA's that may include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, beidou satellite navigation system (BeiDou Navigation Satellite System, BDS), and global positioning system (Global Positioning System, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal device may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

Alternatively, direct terminal (D2D) communication may be performed between the terminal devices 120.

Alternatively, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 illustrates one network device and two terminal devices by way of example, and alternatively, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

Fig. 2 is a schematic flow chart of a wireless communication method 200 provided in an embodiment of the present application.

S210, the access network equipment determines the state of the terminal equipment according to whether first indication information indicating that first data to be transmitted currently exists or not, wherein the first data are uplink data or downlink data.

It will be appreciated that the first data is for the terminal device.

It should be noted that the states of the terminal device may be a connection state, an inactive state, and an idle state.

Optionally, the access network device may acquire the first indication information by:

in a first mode of the present invention,

the access network device receives the first indication information sent by the terminal device, and at this time, the first data indicated by the first indication information is uplink data.

In the second mode, the first mode is adopted,

the access network device receives the first indication information sent by the core network device, and at this time, the first data indicated by the first indication information may be downlink data or uplink data.

For example, when the core network device needs to send downlink data to the terminal device, the first indication information may be sent to the access network device.

For another example, the core network device may determine that uplink data exists in the terminal device to be transmitted according to subscription information and/or external service information of the terminal device, and at this time, the core network device may send the first indication information to the access network device.

Optionally, when there is the first indication information indicating that the first data to be transmitted currently exists, the access network device determines that the terminal device needs to be configured to be in a connected state.

For example, a terminal device in an inactive state or an idle state is configured as a connected state.

Specifically, the terminal device may be configured to be in a connected state by:

step one, the access network device sends a first paging message to the terminal device, where the first paging message is used to trigger the terminal device in an inactive state or in an idle state to restore connection.

Optionally, the first paging Message carries second indication information including timing information of a first timer, where the second indication information is used to instruct the terminal device to start the first timer after sending a third Message (Message 3, msg 3) based on a random access procedure, receive a fourth Message (Message 4, msg 4) based on a random access procedure, sent by the access network device and encapsulated with the first data, before the first timer expires, and reinitiate a connection recovery request or switch to an idle state when the first timer expires.

It should be noted that, after the terminal device receives the paging message, according to the second indication information, after sending the MSG 3 based on the random access procedure, the terminal device starts the first timer, before the first timer expires, receives the MSG 4 based on the random access procedure, which is sent by the access network device and encapsulates the first data, and when the first timer expires, reinitiates a connection recovery request or switches to an idle state.

Optionally, the second indication information is further used for indicating the value of the first timer, or indicating the identification of the first timer, or indicating that the first timer is adopted,

The second indication information is also used for indicating the identification of the first timer, or indicating that the value of the first timer is a preset value when the first timer is adopted.

And step two, the access network equipment receives a connection restoration request sent by the terminal equipment.

And thirdly, responding to the connection recovery request, and configuring the terminal equipment into a connection state by the access network equipment.

And step four, the access network equipment sends third indication information to the terminal equipment, wherein the third indication information is used for indicating the terminal equipment to be kept in a connection state.

The terminal device remaining in the connected state can be understood as: the terminal device switches from the inactive state or the idle state to the connected state and remains in the connected state for a certain period of time, e.g. until the first timer has expired.

It should be noted that, when the access network device configures the terminal device to be in the connection state, only part of the steps from the first step to the fourth step may be performed. For example, the access network device performs only steps one to three. For another example, the terminal device performs only step one.

Optionally, as an example, a second timer is configured in the access network device, where the second timer is used to indicate a duration that the terminal device needs to remain in a connected state. At this time, the access network device may control the state of the terminal device based on the second timer.

For example, the access network device starts the second timer, and

before the second timer expires, the terminal device is configured to a connected state,

and when the second timer expires, the terminal equipment is configured to be in an inactive state or an idle state.

It should be noted that, the terminal device maintains the connection state for the duration indicated by the second timer, and receives the first data (downlink data) sent by the access network device, or sends the first data (uplink data) to the access network device.

Optionally, as an example, the access network device sends fourth indication information carrying the second timer to the core network device, wherein,

the second timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the fourth indication information is used for indicating the core network equipment to send the first data to the access network equipment before the second timer is overtime.

After receiving the fourth indication information, the core network device may send the first data (downlink data) to the access network device according to the fourth indication information before the second timer expires.

Optionally, as an example, the access network device sends fifth indication information carrying the second timer to the terminal device, wherein,

the second timer is used for indicating the duration that the terminal equipment needs to be kept in the connection state, and the fifth indicating information is used for indicating the terminal equipment to enter the inactive state or the idle state when the second timer is out of time.

It should be noted that, after receiving the fifth indication information, the terminal device may remain in a connected state for receiving the first data (downlink data) or for transmitting the first data (uplink data) according to the fifth indication information before the second timer times out, and enter an inactive state when the second timer times out.

Alternatively, as an example, the access network device may encapsulate the first data (downlink data) sent by the core network device into the MSG 4 based on the random access procedure after receiving the first data, and send the MSG 4 based on the random access procedure to the terminal device.

Optionally, the access network device may determine that the first indication information indicating that the first data is currently available for transmission does not exist by:

In the mode a of the present invention,

the access network device receives first information sent by the core network device, wherein the first information does not carry downlink data to be transmitted and/or the first information does not carry the first indication information.

The first data indicated by the first indication information may be downlink data or uplink data.

Optionally, when the first indication information indicating that the first data to be transmitted currently exists does not exist, the access network device determines that the terminal device needs to be configured in an inactive state or an idle state.

Specifically, the access network device may configure the terminal device to be in an inactive state or an idle state by:

step one, the access network device sends a second paging message to the terminal device, where the second paging message is used to trigger the terminal device in an inactive state or in an idle state to restore connection.

And step two, the access network equipment sends sixth indication information to the terminal equipment, wherein the sixth indication information is used for indicating the terminal equipment to be kept in an inactive state or an idle state.

It should be noted that, when the access network device configures the terminal device to be in the inactive state or the idle state, the access network device may perform only the first step, but not the second step.

Optionally, in an embodiment of the present application, the core network device is a control plane entity or a user plane entity.

Therefore, in the embodiment of the application, the access network device can determine the state of the terminal device according to whether the first indication information indicating that the first data to be transmitted currently exists, so that the paging times of the terminal device are reduced, and signaling overhead is further reduced.

Fig. 3 is a schematic flow chart of a wireless communication method 300 provided in an embodiment of the present application.

S310, the terminal equipment sends a connection recovery request to the access network equipment.

S320, the terminal equipment receives first indication information sent by the access network equipment and indicating the state of the terminal equipment, wherein the first indication information is the indication information sent by the access network equipment after determining the state of the terminal equipment according to whether second indication information indicating that first data to be transmitted currently exists, and the first data is uplink data or downlink data.

S330, the terminal equipment determines the maintained state according to the first indication information.

Optionally, when the second indication information exists at the access network device, the first indication information is used for indicating that the terminal device is kept in a connected state; or alternatively

The first indication information is used to indicate that the terminal device remains in an inactive state or an idle state when the second indication information is not present at the access network device.

Optionally, before the terminal device sends the connection recovery request to the access network device, the method includes:

the terminal equipment receives a first paging message sent by the access network equipment, wherein the first paging message is used for triggering the terminal equipment in an inactive state or in an idle state to restore connection.

Optionally, when the terminal device receives the second indication information, the first paging message carries third indication information including timing information of a first timer, where the third indication information is used to instruct the terminal device to start the first timer after sending a third message MSG 3 based on a random access process, before the first timer times out, receive a fourth message MSG 4 based on the random access process, sent by the access network device, in which the downlink data is encapsulated, and reinitiate a connection recovery request or switch to an idle state when the first timer times out;

the method 300 includes:

the terminal equipment starts the first timer after sending the MSG 3 based on the random access process according to the third indication information, receives MSG 4 based on the random access process, which is sent by the access network equipment and encapsulates the downlink data, before the first timer is overtime, and reinitiates a connection recovery request or switches to an idle state when the first timer is overtime.

Optionally, the third indication information is further used for indicating the value of the first timer, or indicating the identification of the first timer, or indicating that the first timer is adopted,

and when the third indication information is also used for indicating the identification of the first timer or the first timer is adopted, the value of the first timer is a preset value.

Optionally, the method 300 further includes:

the terminal equipment receives fourth indication information which is sent by the access network equipment and carries a second timer, wherein the second timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the fourth indication information is used for indicating the terminal equipment to enter an inactive state or an idle state when the second timer is overtime;

the terminal device starts the second timer, receives the first data before the second timer expires, and enters an inactive state or an idle state when the second timer expires.

At this time, the first data is downlink data, that is, the terminal device receives the downlink data before the second timer expires.

Optionally, the method 300 includes:

The terminal equipment sends the second indication information to the access network equipment, and the first data indicated by the second indication information is uplink data.

It should be understood that the steps in the wireless communication method 300 may refer to corresponding steps in the wireless communication method 200, and are not described herein for brevity.

Therefore, in the embodiment of the application, the access network device can determine the state of the terminal device according to whether the first indication information indicating that the first data to be transmitted currently exists or not, and the terminal device can also timely acquire the state to be maintained, so that the paging times of the access network device to the terminal device are reduced, and signaling overhead is further reduced.

Fig. 4 is a schematic flow chart of a wireless communication method 400 provided in an embodiment of the present application.

And S410, the core network equipment sends first information to the access network equipment, wherein the first information comprises first indication information or does not comprise first indication information, the first indication information is used for indicating that first data aiming at terminal equipment exist at present to be transmitted, the first data are uplink data or downlink data, and the first information is used for indicating the access network equipment to determine the state of the terminal equipment according to whether the first indication information exists or not.

Optionally, when the first indication information exists in the first information, the first information is used for indicating the access network device to determine that the state of the terminal device needs to be configured as a connection state; or alternatively

And when the first indication information does not exist in the first information, the first information is used for indicating the access network equipment to determine that the state of the terminal equipment needs to be configured into an inactive state or an idle state.

Optionally, when the first data indicated by the first indication information is downlink data, the method 400 further includes:

the core network device sends the first data to the access network device.

Optionally, the method 400 further comprises:

the core network equipment receives second indication information which is sent by the access network equipment and is carried with a first timer, wherein the first timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the second indication information is used for indicating that the first data is sent to the access network equipment before the first timer is overtime;

the core network device sending the first data to the access network device, including:

and the core network equipment sends the first data to the access network equipment according to the second indication information.

In this case, the first data is uplink data.

Optionally, before the core network device sends the first information to the access network device, the method 400 further includes:

the core network device determines that the terminal device has uplink data to be transmitted according to the subscription information of the terminal device and/or external service information.

Optionally, the core network device is a control plane entity or a user plane entity.

It should be understood that the steps in the wireless communication method 400 may refer to corresponding steps in the wireless communication method 200, and are not described herein for brevity.

Therefore, in the embodiment of the application, the access network device can determine the state of the terminal device according to whether first indication information indicating that first data to be transmitted currently exists or not, and the core network device can also timely acquire the state required to be maintained by the terminal device, so that the paging times of the access network device to the terminal device are reduced, and signaling overhead is further reduced.

Alternatively, as one embodiment, fig. 5 shows a schematic flow chart of a specific wireless communication method 500 of an embodiment of the present application. The method 500 includes:

s510, the core network device sends a location request (location request) to the access network device.

The location request includes first indication information that there is first data to be transmitted.

Optionally, the core network device may send the location request to the access network device when downlink data needs to be sent to the terminal device; and the position request can also be sent to the access network equipment when the terminal equipment is determined to have uplink data to be transmitted according to the subscription information of the terminal equipment and/or the external service information.

The first data may be downlink data or uplink data.

S520, the access network device sends a first paging message to the core network device.

The first paging message is used for triggering the terminal equipment in the inactive state to resume connection.

Optionally, the first paging message carries second indication information including a first timer, where the second indication information is used to instruct the terminal device to start the first timer after sending the MSG 3 based on the random access procedure, receive the MSG 4 based on the random access procedure, which is sent by the access network device and encapsulates the first data, before the first timer times out, and reinitiate a connection recovery request or switch to an idle state when the first timer times out.

And S530, the terminal equipment sends a connection recovery request to the access network equipment.

The connection recovery request may be a radio resource control (Radio Resource Control, RRC) connection recovery request.

S540, the access network equipment determines to configure the terminal equipment into a connection state.

Optionally, a second timer is configured in the access network device, where the second timer is used to indicate a duration that the terminal device needs to be kept in a connected state.

It should be noted that the second timer may be a pending timer (pending timer).

Specifically, the access network device starts the second timer, and

and when the second timer expires, the terminal equipment is configured to be in an inactive state.

S550, the access network device sends a position report to the core network device.

Optionally, the location report carries the second timer, and the location report is used to instruct the core network device to send the first data to the access network device before the second timer expires.

In other words, the core network device may send the first data to the access network device before the second timer expires.

S560, the access network device sends the connection recovery configuration to the terminal device.

Optionally, the second timer is carried in the connection recovery configuration, and the connection recovery configuration may instruct the terminal device to enter the inactive state when the second timer expires.

In other words, the terminal device may remain in the connected state for receiving the first data until the second timer expires, and switch from the connected state to the inactive state when the second timer expires.

Fig. 6 is a schematic block diagram of an access network device 600 according to an embodiment of the present application. As shown in fig. 6, the access network apparatus 600 includes:

the processing unit 610 is configured to determine a state of the terminal device according to whether first indication information indicating that there is first data to be transmitted currently exists, where the first data is uplink data or downlink data.

Optionally, the access network device 600 further includes:

a communication unit 620, configured to receive the first indication information sent by the terminal device, where the first data indicated by the first indication information is uplink data;

the processing unit 610 is specifically configured to:

it is determined that the terminal device needs to be configured to a connected state.

Optionally, the access network device 600 further includes:

a communication unit 620, configured to receive the first indication information sent by the core network device;

the processing unit 610 is specifically configured to:

the access network device determines that the terminal device needs to be configured to a connected state.

Optionally, the communication unit 620 is further configured to send a first paging message to the terminal device, where the first paging message is used to trigger the terminal device in the inactive state or in the idle state to restore the connection.

Optionally, the communication unit 620 is further configured to receive a connection restoration request sent by the terminal device;

in response to the connection restoration request, the processing unit 610 configures the terminal device to a connected state.

Optionally, the communication unit 620 is further configured to send third indication information to the terminal device, where the third indication information is used to indicate that the terminal device is kept in a connected state.

Optionally, a second timer is configured in the access network device, the second timer being used to indicate the duration of time that the terminal device needs to remain in a connected state,

the processing unit 610 is further configured to:

starting the second timer

Optionally, the communication unit 620 is further configured to send fourth indication information carrying the second timer to the core network device, where,

Optionally, the communication unit 620 is further configured to send fifth indication information carrying the second timer to the terminal device, where,

Optionally, the communication unit 620 is further configured to receive the first data sent by the core network device;

the processing unit 610 is further configured to encapsulate the first data into an MSG 4 in a random access based procedure;

the communication unit 620 is further configured to send the MSG 4 in a random access procedure to the terminal device.

Optionally, the access network device 600 further includes:

a communication unit 620, configured to receive first information sent by a core network device, where the first information does not carry downlink data to be transmitted, and/or the first information does not carry the first indication information;

The processing unit 610 is specifically configured to:

it is determined that the terminal device needs to be configured in an inactive state or an idle state.

Optionally, the communication unit 620 is further configured to send a second paging message to the terminal device, where the second paging message is used to trigger the terminal device in the inactive state or in the idle state to restore the connection.

Optionally, the communication unit 620 is further configured to send sixth indication information to the terminal device, where the sixth indication information is used to indicate that the terminal device is kept in an inactive state or an idle state.

It should be appreciated that the above and other operations and/or functions of the respective modules in the access network device 600 according to the embodiments of the present application are respectively for implementing the corresponding flow of the access network device in the method 200 in fig. 2, and are not further described herein for brevity.

Fig. 7 is a schematic block diagram of a terminal device 700 according to an embodiment of the present application. As shown in fig. 7, the terminal device 700 includes:

a communication unit 710, configured to send a connection restoration request to an access network device;

the communication unit 710 is further configured to receive first indication information sent by the access network device and indicating a state of the terminal device, where the first indication information is indication information sent by the access network device after determining, according to whether there is second indication information indicating that there is first data to be transmitted currently, the first data is uplink data or downlink data;

And a processing unit 720 for determining the held state according to the first indication information.

Optionally, before the communication unit 710 sends the connection restoration request to the access network device, the communication unit 710 is further configured to receive a first paging message sent by the access network device, where the first paging message is used to trigger the terminal device in an inactive state or in an idle state to restore connection.

Optionally, when the communication unit 710 receives the second indication information, the first paging message carries third indication information including timing information of a first timer, where the third indication information is used to instruct the terminal device to start the first timer after sending a third message MSG 3 based on a random access procedure, before the first timer times out, receive a fourth message MSG 4 based on the random access procedure sent by the access network device and encapsulated with the downlink data, and reinitiate a connection restoration request or switch to an idle state when the first timer times out;

The processing unit 720 is further configured to:

according to the third indication information, after the MSG 3 in the random access process is sent, the first timer is started, before the first timer is overtime, MSG 4 in the random access process, which is sent by the access network equipment and encapsulates the downlink data, is received, and when the first timer is overtime, a connection recovery request is restarted or is switched to an idle state.

Alternatively, when the communication unit 710 receives the second indication information,

the communication unit 710 is further configured to receive fourth indication information sent by the access network device and carrying a second timer, where the second timer is used to indicate a duration that the terminal device needs to be kept in a connection state, and the fourth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer expires;

The processing unit 720 is further configured to start the second timer, control the communication unit to receive the first data before the second timer expires, and control the terminal device to enter the inactive state or the idle state when the second timer expires.

Optionally, before the communication unit 710 sends the connection restoration request to the access network device, the communication unit 710 is further configured to send the second indication information to the access network device, where the first data indicated by the second indication information is uplink data.

It should be understood that the foregoing and other operations and/or functions of each module in the terminal device 700 according to the embodiments of the present application are respectively for implementing the corresponding flow of the terminal device in the method 300 in fig. 3, and are not repeated herein for brevity.

Fig. 8 is a schematic block diagram of a core network device 800 according to an embodiment of the present application. As shown in fig. 8, the core network device 800 includes:

the communication unit 810 is configured to send first information to an access network device, where the first information includes first indication information, or does not include first indication information, where the first indication information is used to indicate that there is first data for a terminal device to be transmitted currently, the first data is uplink data or downlink data, and the first information is used to instruct the access network device to determine a state of the terminal device according to whether the first indication information exists.

Optionally, the communication unit 810 is further configured to send the first data to the access network device.

Optionally, the communication unit 810 is further configured to:

receiving second indication information which is sent by the access network equipment and carries a first timer, wherein the first timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the second indication information is used for indicating the first data to be sent to the access network equipment before the first timer is overtime;

the communication unit 810 is specifically configured to:

and sending the first data to the access network equipment according to the second indication information.

Optionally, before the communication unit 810 sends the first information to the access network device, the core network device 800 further includes:

and the processing unit 820 is configured to determine that uplink data exists in the terminal device to be transmitted according to the subscription information and/or external service information of the terminal device.

Optionally, the core network device 800 is a control plane entity or a user plane entity.

It should be appreciated that the above and other operations and/or functions of each module in the core network device 800 according to the embodiments of the present application are respectively for implementing the corresponding flow of the core network device in the method 400 in fig. 4, and are not described herein for brevity.

Fig. 9 is a schematic structural diagram of a communication device 900 provided in an embodiment of the present application. The communication device 900 shown in fig. 9 comprises a processor 910, from which the processor 910 may call and run a computer program to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 9, the communication device 900 may also include a memory 920. Wherein the processor 910 may invoke and run a computer program from the memory 920 to implement the methods in the embodiments of the present application.

Wherein the memory 920 may be a separate device from the processor 910 or may be integrated in the processor 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and in particular, may send information or data to other devices, or receive information or data sent by other devices.

Wherein transceiver 930 may include a transmitter and a receiver. Transceiver 930 may further include antennas, the number of which may be one or more.

Optionally, the communication device 900 may be specifically an access network device in the embodiment of the present application, and the communication device 900 may implement a corresponding flow implemented by the access network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 900 may be specifically a mobile terminal/terminal device in the embodiment of the present application, and the communication device 900 may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the communication device 900 may be specifically a core network device in the embodiment of the present application, and the communication device 900 may implement a corresponding flow implemented by the core network device in each method in the embodiment of the present application, which is not described herein for brevity.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and run a computer program from a memory to implement the method in the embodiments of the present application.

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. Wherein the processor 1010 may call and run a computer program from the memory 1020 to implement the methods in embodiments of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and in particular, may obtain information or data sent by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. Wherein the processor 1010 may control the output interface 1040 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

Optionally, the chip may be applied to the access network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the access network device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to a mobile terminal/terminal device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein for brevity.

Optionally, the chip may be applied to the core network device in the embodiment of the present application, and the chip may implement a corresponding flow implemented by the core network device in each method in the embodiment of the present application, which is not described herein for brevity.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

Fig. 11 is a schematic block diagram of a communication system 1100 provided by an embodiment of the present application. As shown in fig. 11, the communication system 1100 includes a terminal device 1110, an access network device 1120, and a core network device 1130.

Wherein the terminal device 1110 may be configured to implement the corresponding functions implemented by the terminal device in the above method, the access network device 1120 may be configured to implement the corresponding functions implemented by the access network device in the above method, and the core network device 1130 may be configured to implement the corresponding functions implemented by the core network device in the above method. For brevity, the description is omitted here.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

Optionally, the computer readable storage medium may be applied to an access network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the access network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding procedure implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer readable storage medium may be applied to a core network device in the embodiments of the present application, and the computer program causes a computer to execute a corresponding flow implemented by the core network device in each method of the embodiments of the present application, which is not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to an access network device in the embodiments of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the access network device in the methods in the embodiments of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause a computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

Optionally, the computer program product may be applied to a core network device in the embodiment of the present application, and the computer program instructions cause a computer to execute corresponding flows implemented by the core network device in each method in the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the access network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the access network device in each method in the embodiments of the present application, which is not described herein for brevity.

Optionally, the computer program may be applied to a mobile terminal/terminal device in the embodiments of the present application, where the computer program when run on a computer causes the computer to execute corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, and for brevity, will not be described herein.

Optionally, the computer program may be applied to the core network device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute a corresponding flow implemented by the core network device in each method in the embodiments of the present application, which is not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the access network equipment receives first information from the core network equipment;

the access network equipment determines that the state of the terminal equipment needs to be configured into a connection state according to first indication information indicating that first data to be transmitted currently exists in the first information, wherein the first data are uplink data or downlink data; and

and the access network equipment determines that the state of the terminal equipment is required to be configured into an inactive state or an idle state according to the fact that the first indication information does not exist in the first information.

2. The method of claim 1, wherein when the access network device determines that the state of the terminal device needs to be configured as a connected state, the method further comprises:

The access network device sends a first paging message to the terminal device, wherein the first paging message is used for triggering the terminal device in an inactive state or in an idle state to restore connection.

3. The method according to claim 2, wherein the first paging message carries second indication information including a first timer, the second indication information is used for indicating the terminal device to start the first timer after sending a third message MSG 3 based on a random access procedure, before the first timer expires, receive a fourth message MSG 4 based on a random access procedure sent by the access network device and encapsulate the first data, and reinitiate a connection recovery request or switch to an idle state when the first timer expires.

4. The method of claim 3, wherein the second indication information is further used to indicate a value of the first timer, or indicate an identification of the first timer, or indicate that the first timer is used,

and when the second indication information is also used for indicating the identification of the first timer or the first timer is adopted, the value of the first timer is a preset value.

5. The method according to any one of claims 2 to 4, further comprising:

the access network equipment receives a connection recovery request sent by the terminal equipment;

and in response to the connection recovery request, the access network equipment configures the terminal equipment into a connection state.

6. The method of claim 5, wherein the method further comprises:

the access network device sends third indication information to the terminal device, wherein the third indication information is used for indicating that the terminal device is kept in a connection state.

7. The method according to any of claims 2 to 4, wherein a second timer is configured in the access network device, the second timer being used to indicate a duration of time that the terminal device needs to remain in a connected state, the method further comprising:

the access network device starts the second timer, and

8. The method according to any one of claims 2 to 4, further comprising:

The access network device sends fourth indication information carrying a second timer to the core network device, wherein,

9. The method according to any one of claims 2 to 4, further comprising:

the access network device sends fifth indication information carrying a second timer to the terminal device, wherein,

the second timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the fifth indicating information is used for indicating the terminal equipment to enter an inactive state or an idle state when the second timer is overtime.

10. The method of claim 1, wherein when the access network device determines that the state of the terminal device needs to be configured as a connected state, the method further comprises:

the access network equipment receives the first data sent by the core network equipment;

the access network equipment encapsulates the first data into MSG 4 based on a random access process;

The access network equipment sends the MSG 4 based on the random access process to the terminal equipment.

11. The method of claim 1, wherein when the access network device determines that the state of the terminal device needs to be configured to an inactive state or an idle state, the method further comprises:

and the access network equipment sends a second paging message to the terminal equipment, wherein the second paging message is used for triggering the terminal equipment in an inactive state or an idle state to restore connection.

12. The method of claim 11, wherein the method further comprises:

and the access network equipment sends sixth indication information to the terminal equipment, wherein the sixth indication information is used for indicating the terminal equipment to be kept in an inactive state or an idle state.

13. The method of claim 1, wherein the core network device is a control plane entity or a user plane entity.

14. A method of wireless communication, comprising:

the terminal equipment receives first indication information which is sent by the access network equipment and indicates the state of the terminal equipment, wherein the first indication information is the indication information which is sent after the access network equipment determines the state of the terminal equipment according to whether second indication information which indicates that first data to be transmitted currently exists in the first information received from the core network equipment, and the first data is uplink data or downlink data;

The terminal device determines the maintained state based on the first indication information,

wherein,,

when the second indication information exists in the first information received by the access network equipment from the core network equipment, the first indication information is used for indicating that the terminal equipment is kept in a connection state; and

and when the second indication information does not exist in the first information received by the access network equipment from the core network equipment, the first indication information is used for indicating the terminal equipment to be kept in an inactive state or an idle state.

15. The method according to claim 14, characterized in that before the terminal device sends the connection restoration request to the access network device, the method comprises:

and the terminal equipment receives a first paging message sent by the access network equipment, wherein the first paging message is used for triggering the terminal equipment in an inactive state or an idle state to restore connection.

16. The method according to claim 15, wherein the first paging message carries third indication information including timing information of a first timer, the third indication information is used for indicating the terminal device to start the first timer after sending a third message MSG 3 based on a random access procedure, before the first timer expires, receive a fourth message MSG 4 based on the random access procedure sent by the access network device and encapsulate the downlink data, and reinitiate a connection recovery request or switch to an idle state when the first timer expires;

The method comprises the following steps:

and the terminal equipment starts the first timer after sending the MSG 3 based on the random access process according to the third indication information, receives MSG 4 based on the random access process, which is sent by the access network equipment and is packaged with the downlink data, before the first timer is overtime, and reinitiates a connection recovery request or switches to an idle state when the first timer is overtime.

17. The method of claim 16, wherein the third indication information is further used to indicate a value of the first timer, or indicate an identification of the first timer, or indicate that the first timer is used,

18. The method according to any one of claims 14 to 17, further comprising:

the terminal equipment receives fourth indication information which is sent by the access network equipment and is carried with a second timer, wherein the second timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the fourth indication information is used for indicating the terminal equipment to enter an inactive state or an idle state when the second timer is overtime;

The terminal device starts the second timer, receives the first data before the second timer times out, and enters an inactive state or an idle state when the second timer times out.

19. A method of wireless communication, comprising:

the core network device sends first information to the access network device, wherein the first information comprises first indication information or does not comprise first indication information, the first indication information is used for indicating that first data aiming at terminal devices exist at present to be transmitted, the first data is uplink data or downlink data, the first information is used for indicating the access network device to determine the state of the terminal devices according to whether the first indication information exists,

wherein,,

when the first indication information exists in the first information, the first information is used for indicating the access network equipment to determine that the state of the terminal equipment needs to be configured as a connection state; and

20. The method of claim 19, wherein the method further comprises:

and the core network equipment sends the first data to the access network equipment.

21. The method of claim 20, wherein the method further comprises:

the core network device receives second indication information which is sent by the access network device and carries a first timer, wherein the first timer is used for indicating the duration that the terminal device needs to be kept in a connection state, and the second indication information is used for indicating that the first data is sent to the access network device before the first timer is overtime;

22. The method of claim 19, wherein prior to the core network device sending the first information to the access network device, the method further comprises:

and the core network equipment determines that the terminal equipment has uplink data to be transmitted according to the subscription information of the terminal equipment and/or external service information.

23. The method according to any of claims 19 to 22, wherein the core network device is a control plane entity or a user plane entity.

24. An access network device, comprising:

a communication unit configured to receive first information from a core network device;

a processing unit for:

determining that the state of the terminal equipment needs to be configured into a connection state according to first indication information indicating that first data to be transmitted currently exists in the first information, wherein the first data are uplink data or downlink data; and

and according to the fact that the first indication information does not exist in the first information, determining that the state of the terminal equipment is required to be configured into an inactive state or an idle state.

25. The access network device of claim 24, wherein,

when the access network device determines that the state of the terminal device needs to be configured into a connection state, the communication unit is further configured to send a first paging message to the terminal device, where the first paging message is used to trigger the terminal device in an inactive state or in an idle state to restore connection.

26. The access network device according to claim 25, wherein the first paging message carries second indication information including a first timer, the second indication information is used to instruct the terminal device to start the first timer after sending a third message MSG 3 based on a random access procedure, receive a fourth message MSG 4 based on a random access procedure sent by the access network device and encapsulate the first data before the first timer expires, and reinitiate a connection recovery request or switch to an idle state when the first timer expires.

27. The access network device of claim 26, wherein the second indication information is further configured to indicate a value of the first timer, or indicate an identity of the first timer, or indicate that the first timer is employed,

28. An access network device according to any one of claims 25 to 27, characterized in that,

the communication unit is further used for receiving a connection recovery request sent by the terminal equipment;

in response to the connection restoration request, the processing unit configures the terminal device to a connected state.

29. The access network device of claim 28, wherein,

the communication unit is further configured to send third indication information to the terminal device, where the third indication information is used to indicate that the terminal device is kept in a connected state.

30. An access network device according to any one of claims 25 to 27, characterized in that the access network device is provided with a second timer for indicating the duration of time that the terminal device needs to remain in a connected state,

The processing unit is further configured to:

starting the second timer

31. An access network device according to any one of claims 25 to 27, characterized in that,

the communication unit is further configured to send fourth indication information carrying a second timer to the core network device, where,

32. An access network device according to any one of claims 25 to 27, characterized in that,

the communication unit is further configured to send fifth indication information carrying a second timer to the terminal device, where,

33. An access network device according to any one of claims 25 to 27, characterized in that,

the communication unit is further configured to receive the first data sent by the core network device;

the processing unit is further configured to encapsulate the first data into an MSG 4 in a random access procedure;

the communication unit is further configured to send the MSG 4 in a random access procedure to the terminal device.

34. The access network device of claim 24, wherein,

when the access network device determines that the state of the terminal device needs to be configured into an inactive state or an idle state, the communication unit is further configured to send a second paging message to the terminal device, where the second paging message is used to trigger the terminal device in the inactive state or the idle state to restore connection.

35. The access network device of claim 34, wherein,

the communication unit is further configured to send sixth indication information to the terminal device, where the sixth indication information is used to indicate that the terminal device is kept in an inactive state or an idle state.

36. The access network device of claim 24, wherein the core network device is a control plane entity or a user plane entity.

37. A terminal device, comprising:

a communication unit, configured to send a connection recovery request to an access network device;

the communication unit is further configured to receive first indication information sent by the access network device and indicating a state of the terminal device, where the first indication information is indication information sent by the access network device after determining, according to whether second indication information indicating that first data to be transmitted currently exists in first information received from a core network device, the state of the terminal device, and the first data is uplink data or downlink data;

a processing unit for determining the held state based on the first indication information,

wherein,,

38. The terminal device of claim 37, wherein the communication unit is further configured to receive a first paging message sent by the access network device before the communication unit sends the connection restoration request to the access network device, where the first paging message is used to trigger the terminal device in an inactive state or an idle state to restore connection.

39. The terminal device according to claim 38, wherein the first paging message carries third indication information including timing information of a first timer, the third indication information is used for indicating that the terminal device starts the first timer after sending a third message MSG 3 based on a random access procedure, before the first timer times out, receives a fourth message MSG 4 based on the random access procedure sent by the access network device and encapsulating the downlink data, and reinitiates a connection recovery request or switches to an idle state when the first timer times out;

the processing unit is further configured to:

and according to the third indication information, starting the first timer after the MSG 3 based on the random access process is sent, receiving MSG 4 based on the random access process, which is sent by the access network equipment and encapsulates the downlink data, before the first timer is overtime, and restarting a connection recovery request or switching to an idle state when the first timer is overtime.

40. The terminal device of claim 39, wherein the third indication information is further configured to indicate a value of the first timer, or indicate an identification of the first timer, or indicate that the first timer is used,

41. The terminal device according to any of claims 37 to 40, wherein the communication unit is further configured to receive fourth indication information sent by the access network device and carrying a second timer, where the second timer is used to indicate a duration that the terminal device needs to be kept in a connected state, and the fourth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer expires;

the processing unit is further configured to start the second timer, control the communication unit to receive the first data before the second timer times out, and control the terminal device to enter an inactive state or an idle state when the second timer times out.

42. A core network device, comprising:

a communication unit, configured to send first information to an access network device, where the first information includes first indication information, or does not include first indication information, where the first indication information is used to indicate that there is first data for a terminal device to be transmitted currently, the first data is uplink data or downlink data, the first information is used to instruct the access network device to determine a state of the terminal device according to whether there is the first indication information,

wherein,,

43. The core network device of claim 42, wherein the communication unit is further configured to send the first data to the access network device.

44. The core network device of claim 43, wherein the communication unit is further configured to:

Receiving second indication information which is sent by the access network equipment and carries a first timer, wherein the first timer is used for indicating the duration that the terminal equipment needs to be kept in a connection state, and the second indication information is used for indicating that the first data is sent to the access network equipment before the first timer is overtime;

the communication unit is specifically configured to:

45. The core network device of claim 42, wherein prior to the communication unit sending the first information to the access network device, the core network device further comprises:

and the processing unit is used for determining that the terminal equipment has uplink data to be transmitted according to the subscription information of the terminal equipment and/or external service information.

46. A core network device according to any of claims 42-45, characterized in that the core network device is a control plane entity or a user plane entity.

47. An access network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory, to perform the method according to any of claims 1 to 13.

48. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 14 to 18.

49. A core network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and run the computer program stored in the memory to perform the method of any of claims 19 to 23.

50. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 13.

51. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 14 to 18.

52. A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 19 to 23.

53. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 13.

54. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 14 to 18.

55. A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 19 to 23.