CN112205060A

CN112205060A - Wireless communication method, access network equipment, terminal equipment and core network equipment

Info

Publication number: CN112205060A
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: 2021-01-08
Anticipated expiration: 2038-06-15
Also published as: WO2019237359A1; CN112205060B

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 the paging frequency of the terminal equipment is reduced, and further, the signaling overhead is 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 equipment, terminal equipment and core network equipment

Technical Field

The present embodiment relates to the field of communications, and in particular, to a wireless communication method, an access network device, a terminal device, and a core network device.

Background

The terminal equipment can enter an inactive state when data interaction with the network equipment is not needed, the context of the terminal equipment is kept when the terminal equipment is in the inactive state, when uplink and downlink data transmission is needed, the terminal equipment initiates a recovery process to enter a connected state, and the terminal equipment and the network equipment can receive and transmit data in the connected state.

When external data needs to be sent to a terminal device in an inactive state, in order to provide better service to an external client, a network device may first know whether the current terminal device is in a reachable state, and at this time, a scenario of paging the terminal device 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 the paging frequency of the terminal equipment is reduced, and further, the signaling overhead is 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 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 or not, and the first data is uplink data or downlink data;

and the terminal equipment determines the kept state according to the first indication information.

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

the method includes that core network equipment sends first information to access network equipment, the first information includes first indication information, or the first information does not include the first indication information, the first indication information is used for indicating that first data aiming at terminal equipment exists at present to be transmitted, the first data is 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.

In a fourth aspect, an access network device is provided for executing the method in the first aspect or its implementation manners.

In particular, the access network device comprises functional modules for performing the methods of the first aspect or its implementations.

In a fifth aspect, a terminal device is provided, configured to execute the method in the second aspect or each implementation manner thereof.

In particular, the terminal device comprises functional modules for performing the methods of the second aspect or its implementations.

A sixth aspect provides a core network device, configured to perform the method in the third aspect or each implementation manner thereof.

Specifically, the core network device includes a functional module configured to execute the method in the third aspect or each implementation manner 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 each implementation manner thereof.

In an eighth aspect, a terminal 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 of the second aspect or each implementation mode thereof.

In a ninth aspect, a core 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 third aspect or each implementation manner thereof.

A tenth aspect provides a chip for implementing the method of any one of the first to third aspects or implementations thereof.

Specifically, the chip includes: a processor configured to call and run the computer program from the memory, so that the device on which the chip is installed performs the method according to any one of the first to third aspects or the implementation manners thereof.

In an eleventh aspect, a computer-readable storage medium is provided for storing a computer program, which causes a computer to perform the method of any one of the 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 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 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, so that the paging frequency of the terminal equipment is reduced, and further, the signaling overhead is 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 according to 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 still another wireless communication method provided in an embodiment of the present application.

Fig. 5 is a schematic flow chart of still 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 provided 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

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, or a later-version communication System.

Illustratively, a communication system 100 applied in the embodiment of the present application 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, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted 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 Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a 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 another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, BeiDou Navigation Satellite systems (BDS), and Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment 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 (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminal devices 120.

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

Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments 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 having a communication function, and the network device 110 and the terminal device 120 may be the 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 other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

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

Fig. 2 is a schematic flow chart of a wireless communication method 200 according to 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 is to be understood that the first data is for the terminal device.

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

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

in the first way, the first step is to perform the following steps,

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 way, the first way is,

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 the terminal device has uplink data to be transmitted according to the subscription information of the terminal device and/or external service information, and at this time, the core network device may send the first indication information to the access network device.

Optionally, when 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 in a connection state.

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

Specifically, the terminal device may be configured to the connected state by the following procedure:

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 an idle state to recover 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 indicate that the terminal device starts the first timer after sending a third Message (Message 3, MSG 3) in a random access based procedure, and before the first timer expires, receives a fourth Message (Message 4, MSG 4) in the random access based procedure, which is sent by the access network device and is encapsulated with the first data, and reinitiates a connection recovery request or switches to an idle state when the first timer expires.

It should be noted that, after receiving the paging message, the terminal device starts the first timer according to the second indication information after sending the MSG 3 in the random access procedure, receives the MSG 4 in the random access procedure, which is sent by the access network device and encapsulated with the first data, before the first timer expires, and re-initiates a connection recovery request or switches to the idle state when the first timer expires.

Optionally, the second indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

and the second indication information is also used for indicating the identifier 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 the connection recovery request sent by the terminal equipment.

Step three, responding to the connection recovery request, the access network equipment configures the terminal equipment into a connection state.

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

The terminal device remaining in the connected state may be understood as: the terminal device switches from an inactive state or an idle state to a connected state and remains in the connected state for a certain period of time, for example, before the first timer times out.

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

and when the second timer is timed out, configuring the terminal equipment into 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, to the core network device, fourth indication information carrying a second timer, wherein,

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 the core network device to send the first data to the access network device before the second timer expires.

It should be noted that, after receiving the fourth indication information, the core network device may send the first data (downlink data) to the access network device before the second timer expires according to the fourth indication information.

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

the second timer is used for indicating the duration that the terminal device needs to be kept in the connection state, and the fifth indication information is used for indicating the terminal device to enter the non-activation state or the idle state when the second timer is overtime.

It should be noted that, after receiving the fifth indication information, the terminal device may remain in a connected state according to the fifth indication information before the second timer expires, so as to receive the first data (downlink data), or be configured to send the first data (uplink data), and enter an inactive state when the second timer expires.

Optionally, as an example, after receiving the first data (downlink data) sent by the core network device, the access network device may encapsulate the first data into MSG 4 in a random access procedure, and send the MSG 4 in a 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 to be transmitted does not exist by:

in the way of the A, the method of the A,

the access network device receives first information sent by a 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.

It should be noted that 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 in an inactive state or an idle state through the following steps:

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 an idle state to recover the connection.

Step two, the access network device sends sixth indication information to the terminal device, and the sixth indication information is used for indicating that the terminal device is kept in an inactive state or an idle state.

It should be noted that, when the access network device configures the terminal device in the inactive state or the idle state, only step one may be performed, but not step two.

Optionally, in this 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 frequency of the terminal device is reduced, and further, the signaling overhead is reduced.

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

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

S320, the terminal device receives first indication information indicating a state of the terminal device, where the first indication information is sent by the access network device after the access network device determines the state of the terminal device according to whether there is second indication information indicating that there is first data to be transmitted currently, and the first data is uplink data or downlink data.

S330, the terminal equipment determines the kept 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 to indicate that the terminal device remains in a connected state; or

When the second indication information does not exist at the access network device, the first indication information is used for indicating that the terminal device is kept in an inactive state or an idle state.

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

the terminal device receives 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 an idle state to recover 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 indicate that the terminal device starts the first timer after sending a third message MSG 3 in a random access based process, before the first timer times out, receives a fourth message MSG 4 in the random access based process, which is sent by the access network device and is encapsulated with the downlink data, and when the first timer times out, re-initiates a connection recovery request or switches to an idle state;

the method 300 includes:

the terminal device starts the first timer after sending the MSG 3 in the random access process according to the third indication information, receives the MSG 4 in the random access process encapsulated with the downlink data sent by the access network device before the first timer is overtime, and re-initiates a connection recovery request or switches to an idle state when the first timer is overtime.

Optionally, the third indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

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

Optionally, the method 300 further comprises:

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

It should be noted that, at this time, the first data is downlink data, that is, the terminal device receives the downlink data before the second timer times out.

Optionally, the method 300 comprises:

the terminal device sends the second indication information to the access network device, 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 can refer to the corresponding steps in the wireless communication method 200, and are not described herein again 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, and the terminal device can also know the state required to be maintained in time, so that the paging frequency of the access network device to the terminal device is reduced, and further, the signaling overhead is reduced.

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

S410, the core network device sends first information to the access network device, where the first information includes first indication information, or does not include the first indication information, the first indication information is used to indicate that first data for the terminal device is currently to be transmitted, the first data is uplink data or downlink data, and the first information is used to indicate that the access network device determines a state of the terminal device according to whether the first indication information exists.

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

When the first indication information does not exist in the first information, the first information is used for indicating that the access network device determines that the state of the terminal device 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 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;

the core network device sends 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.

Note that, at this time, 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:

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.

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 can refer to the corresponding steps in the wireless communication method 200, and are not described herein again 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, and the core network device can also know the state which needs to be maintained by the terminal device in time, so that the paging frequency of the access network device to the terminal device is reduced, and further, the signaling overhead is reduced.

Optionally, as an embodiment, fig. 5 shows a schematic flowchart of a specific wireless communication method 500 according to 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 position request comprises first indication information that first data to be transmitted exists.

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; or when determining that the terminal device has uplink data to be transmitted according to the subscription information of the terminal device and/or external service information, sending the location request to the access network device.

The first data may be downlink data or uplink data.

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

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

Optionally, the first paging message carries second indication information including a first timer, where the second indication information is used to indicate that the terminal device starts the first timer after sending the MSG 3 in the random access procedure, receives, before the first timer expires, the MSG 4 in the random access procedure, which is sent by the access network device and is encapsulated with the first data, and reinitiates the connection recovery request or switches to the idle state when the first timer expires.

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

It should be noted that the connection resuming request may be a Radio Resource Control (RRC) connection resuming request.

S540, the access network device determines to configure the terminal device in the 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 remain in the connected state.

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

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

and when the second timer is timed out, configuring the terminal equipment into an inactive state.

And S550, the access network equipment sends the position report to the core network equipment.

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 connection recovery configuration carries the second timer, and the connection recovery configuration may instruct the terminal device to enter an inactive state when the second timer times out.

In other words, the terminal device may remain in a connected state for receiving the first data before the second timer times out, and switch from the connected state to an inactive state when the second timer times out.

Fig. 6 is a schematic block diagram of an access network apparatus 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 there is first indication information indicating that there is first data to be transmitted currently, 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 into 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 into 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 an inactive state or in an idle state to resume connection.

Optionally, the communication unit 620 is further configured to receive a connection recovery 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 remains in the connected state.

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

the processing unit 610 is further configured to:

starting the second timer, an

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

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

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 MSG 4 based on a random access procedure;

the communication unit 620 is further configured to send the MSG 4 based on 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 resume 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 remains in an inactive state or an idle state.

It should be understood that the above and other operations and/or functions of each module in the access network device 600 according to the embodiment of the present application are respectively for implementing the corresponding process of the access network device in the method 200 in fig. 2, and are not described herein again 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 recovery request to an access network device;

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

a processing unit 720, configured to determine the maintained state according to the first indication information.

Optionally, before the communication unit 710 sends the connection recovery 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 the inactive state or in the idle state to recover the 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 indicate that the terminal device starts the first timer after sending a third message MSG 3 in a random access based process, before the first timer expires, receives a fourth message MSG 4 in the random access based process, which is sent by the access network device and is encapsulated with the downlink data, and when the first timer expires, re-initiates a connection recovery request or switches to an idle state;

the processing unit 720 is further configured to:

according to the third indication information, after the MSG 3 in the random access based process is sent, the first timer is started, and before the first timer is overtime, the MSG 4 in the random access based process, which is sent by the access network device and is encapsulated with the downlink data, is received, and when the first timer is overtime, the connection recovery request is reinitiated or the idle state is switched to.

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

the communication unit 710 is further configured to receive fourth indication information carrying a second timer and sent by 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, 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 is overtime;

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 an inactive state or an idle state when the second timer expires.

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

It should be understood that the above and other operations and/or functions of the modules in the terminal device 700 according to the embodiment of the present application are respectively for implementing the corresponding flows of the terminal device in the method 300 in fig. 3, and are not described herein again for brevity.

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

a communication unit 810, configured to send first information to an access network device, where the first information includes first indication information or does not include the first indication information, where the first indication information is used to indicate that first data for a terminal device is to be transmitted currently, the first data is uplink data or downlink data, and the first information is used to indicate that the access network device determines 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 that the first data is 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:

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

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

It should be understood that the above and other operations and/or functions of each module in the core network device 800 according to the embodiment 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 again for brevity.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the communication device 900 may also include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

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 specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 930 may include a transmitter and a receiver, among others. The transceiver 930 may further include one or more antennas.

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

Optionally, the communication device 900 may specifically be a mobile terminal/terminal device according to this embodiment, and the communication device 900 may implement a corresponding process implemented by the mobile terminal/terminal device in each method according to this embodiment, which is not described herein again for brevity.

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

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. From the memory 1020, the processor 1010 may call and execute a computer program to implement the method in the embodiment 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 further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically may obtain information or data transmitted by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and may particularly output information or data to the 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 process implemented by the access network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

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 process implemented by the core network device in each method of the embodiment of the present application, which is not described herein again for brevity.

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

Fig. 11 is a schematic block diagram of a communication system 1100 provided in 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.

The terminal device 1110 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, the access network device 1120 may be configured to implement the corresponding function implemented by the access network device in the foregoing method, and the core network device 1130 may be configured to implement the corresponding function implemented by the core network device in the foregoing method. For brevity, no further description is provided herein.

It should be understood that the processor of the embodiments 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 performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed 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 the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus 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 memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the access network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the access network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the core network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the core network device in the methods in the embodiments of the present application, which are not described herein again 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 the access network device in the embodiment of the present application, and the computer program instruction enables the computer to execute a corresponding process implemented by the access network device in each method of the embodiment of the present application, which is not described herein again for brevity.

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

Optionally, the computer program product may be applied to the core network device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding process implemented by the core network device in each method in the embodiment of the present application, which is not described herein again 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 embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the access network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer program may be applied to the core network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the core network device in each method in the embodiment of the present application, which is not described herein again 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 implementation. 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 is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed 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 can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into 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 or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the 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 conceive of the changes or substitutions within the technical scope of the present application, and shall 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

A method of wireless communication, comprising:

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.
The method of claim 1, further comprising:

the access network equipment receives the first indication information sent by the terminal equipment, and the first data indicated by the first indication information is uplink data;

the method for determining the state of the terminal equipment by the access network equipment according to whether first indication information indicating that first data to be transmitted currently exists or not comprises the following steps:

the access network device determines that the terminal device needs to be configured in a connected state.
The method of claim 1, further comprising:

the access network equipment receives the first indication information sent by core network equipment;

the method for determining the state of the terminal equipment by the access network equipment according to whether first indication information indicating that first data to be transmitted currently exists or not comprises the following steps:

the access network device determines that the terminal device needs to be configured in a connected state.
A method according to claim 2 or 3, characterized in that the method further comprises:

the access network equipment sends a first paging message to the terminal equipment, wherein the first paging message is used for triggering the terminal equipment in an inactive state or an idle state to recover the connection.
The method according to claim 4, wherein the first paging message carries second indication information including a first timer, and the second indication information is used to indicate the terminal device to start the first timer after sending a third message MSG 3 in the random access based procedure, receive a fourth message MSG 4 in the random access based procedure, which is sent by the access network device and is encapsulated with the first data, before the first timer expires, and reinitiate the connection recovery request or switch to the idle state when the first timer expires.
The method of claim 5, wherein the second indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

and the second indication information is also used for indicating the identifier of the first timer, or indicating that the value of the first timer is a preset value when the first timer is adopted.
The method according to any one of claims 4 to 6, further comprising:

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

and responding to the connection recovery request, and configuring the terminal equipment into a connection state by the access network equipment.
The method of claim 7, further comprising:

and the access network equipment sends third indication information to the terminal equipment, wherein the third indication information is used for indicating that the terminal equipment is kept in a connection state.
The method according to any one of claims 2 to 8, wherein a second timer is configured in the access network device, and the second timer is used for indicating a duration that the terminal device needs to remain in a connected state, and the method further comprises:

the access network device starts the second timer, an

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

and when the second timer is overtime, configuring the terminal equipment into an inactive state or an idle state.
The method according to any one of claims 2 to 9, further comprising:

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

the second timer is configured to indicate a duration that the terminal device needs to remain in a connection state, and the fourth indication information is configured to indicate the core network device to send the first data to the access network device before the second timer expires.
The method according to any one of claims 2 to 10, further comprising:

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

the second timer is used for indicating the duration that the terminal device needs to be kept in a connection state, and the fifth indication information is used for indicating the terminal device to enter an inactive state or an idle state when the second timer is overtime.
The method according to any one of claims 3 to 11, further comprising:

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;

and the access network equipment sends the MSG 4 based on the random access process to the terminal equipment.
The method of claim 1, further comprising:

the access network equipment receives first information sent by core network equipment, 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 method for determining the state of the terminal equipment by the access network equipment according to whether first indication information indicating that first data to be transmitted currently exists or not comprises the following steps:

the access network equipment determines that the terminal equipment needs to be configured into an inactive state or an idle state.
The method of claim 13, further comprising:

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 recover the connection.
The method of claim 14, further comprising:

and the access network equipment sends sixth indication information to the terminal equipment, wherein the sixth indication information is used for indicating that the terminal equipment is kept in an inactive state or an idle state.
The method according to claim 3, 13, 14 or 15, wherein the core network device is a control plane entity or a user plane entity.
A method of wireless communication, comprising:

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 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 or not, and the first data is uplink data or downlink data;

and the terminal equipment determines the kept state according to the first indication information.
The method of claim 17,

when the second indication information exists at the access network equipment, the first indication information is used for indicating that the terminal equipment is kept in a connection state; or

When the second indication information does not exist at the access network device, the first indication information is used for indicating that the terminal device is kept in an inactive state or an idle state.
The method according to claim 17 or 18, wherein before the terminal device sends the connection restoration request to the access network device, the method comprises:

the terminal device receives a first paging message sent by the access network device, wherein the first paging message is used for triggering the terminal device in an inactive state or an idle state to recover the connection.
The method according to claim 19, wherein the first paging message carries third indication information including timing information of a first timer, and the third indication information is used to indicate the terminal device to start the first timer after sending a third message MSG 3 in a random access based procedure, receive a fourth message MSG 4 in the random access based procedure, which is sent by the access network device and is encapsulated with the downlink data, before the first timer expires, and reinitiate a connection recovery request or switch to an idle state when the first timer expires;

the method comprises the following steps:

the terminal device starts the first timer after sending the MSG 3 in the random access process according to the third indication information, receives the MSG 4 in the random access process, which is sent by the access network device and is packaged with the downlink data, before the first timer is overtime, and re-initiates a connection recovery request or switches to an idle state when the first timer is overtime.
The method of claim 20, wherein the third indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

and the third indication information is further used for indicating an identifier of the first timer, or indicating that the value of the first timer is a preset value when the first timer is adopted.
The method according to any one of claims 17 to 21, further comprising:

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

the terminal equipment starts the second timer, receives the first data before the second timer is overtime, and enters an inactive state or an idle state when the second timer is overtime.
The method according to any of claims 17 to 22, wherein before the terminal device sends the connection restoration request to the access network device, the method comprises:

and 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.
A method of wireless communication, comprising:

the method includes that core network equipment sends first information to access network equipment, the first information includes first indication information, or the first information does not include the first indication information, the first indication information is used for indicating that first data aiming at terminal equipment exists at present to be transmitted, the first data is 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.
The method of claim 24,

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 into a connection state; or

When the first indication information does not exist 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 into an inactive state or an idle state.
The method of claim 24 or 25, further comprising:

and the core network equipment sends the first data to the access network equipment.
The method of claim 26, further comprising:

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;

the sending, by the core network device, the first data to the access network device includes:

and the core network equipment sends the first data to the access network equipment according to the second indication information.
The method of claim 24 or 25, wherein before the core network device sends 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.
The method according to any of claims 24 to 28, wherein the core network device is a control plane entity or a user plane entity.
An access network device, comprising:

the processing unit is configured to determine a state of the terminal device according to whether there is first indication information indicating that there is first data to be transmitted currently, where the first data is uplink data or downlink data.
The access network device of claim 30, wherein the access network device further comprises:

a communication unit, 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 is specifically configured to:

determining that the terminal device needs to be configured in a connected state.
The access network device of claim 30, wherein the access network device further comprises:

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

the processing unit is specifically configured to:

the access network device determines that the terminal device needs to be configured in a connected state.
The access network device of claim 31 or 32,

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 an idle state to recover connection.
The ran apparatus according to claim 33, wherein the first paging message carries second indication information including a first timer, the second indication information is used to indicate the terminal apparatus to start the first timer after sending a third message MSG 3 in a random access based procedure, receive a fourth message MSG 4 in the random access based procedure, which is sent by the access network apparatus and is 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.
The access network device of claim 34, wherein the second indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

and the second indication information is also used for indicating the identifier of the first timer, or indicating that the value of the first timer is a preset value when the first timer is adopted.
An access network device according to any one of claims 33 to 35,

the communication unit is also 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.
The access network apparatus of claim 36,

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.
The access network device according to any of claims 31 to 37, wherein a second timer is configured in the access network device, the second timer being used to indicate a duration that the terminal device needs to remain in a connected state,

the processing unit is further to:

starting the second timer, an

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

and when the second timer is overtime, configuring the terminal equipment into an inactive state or an idle state.
The access network device of any of claims 31-38,

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

the second timer is configured to indicate a duration that the terminal device needs to remain in a connection state, and the fourth indication information is configured to indicate the core network device to send the first data to the access network device before the second timer expires.
The access network device of any of claims 31-39,

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

the second timer is used for indicating the duration that the terminal device needs to be kept in a connection state, and the fifth indication information is used for indicating the terminal device to enter an inactive state or an idle state when the second timer is overtime.
The access network device of any of claims 32 to 40,

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 MSG 4 based on a random access procedure;

the communication unit is further configured to send the MSG 4 based on a random access procedure to the terminal device.
The access network device of claim 30, wherein the access network device further comprises:

a communication unit, 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 is specifically configured to:

determining that the terminal device needs to be configured in an inactive state or an idle state.
The access network apparatus of claim 42,

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 an inactive state or an idle state to recover connection.
The access network apparatus of claim 43,

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.
An access network device according to claim 32, 42, 43 or 44, characterized in that the core network device is a control plane entity or a user plane entity.
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, which is sent by the access network device and indicates a state of the terminal device, where the first indication information is indication information sent by the access network device after determining the state of the terminal device according to whether second indication information indicating that first data to be transmitted currently exists or not, and the first data is uplink data or downlink data;

a processing unit for determining the maintained state according to the first indication information.
The terminal device of claim 46,

when the second indication information exists at the access network equipment, the first indication information is used for indicating that the terminal equipment is kept in a connection state; or

When the second indication information does not exist at the access network device, the first indication information is used for indicating that the terminal device is kept in an inactive state or an idle state.
The terminal device according to claim 46 or 47, wherein before the communication unit sends the connection recovery request to the access network device, the communication unit 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 an idle state to recover connection.
The terminal device according to claim 48, wherein the first paging message carries third indication information including timing information of a first timer, and the third indication information is used to indicate the terminal device to start the first timer after sending a third message MSG 3 in a random access based procedure, receive a fourth message MSG 4 in the random access based procedure, which is sent by the access network device and is encapsulated with the downlink data, before the first timer expires, and reinitiate a connection recovery request or switch to an idle state when the first timer expires;

the processing unit is further 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, the MSG 4 which is encapsulated with the downlink data and sent by the access network equipment and is based on the random access process is received, and when the first timer is overtime, the connection recovery request is reinitiated or switched to an idle state.
The terminal device of claim 49, wherein the third indication information is further used to indicate a value of the first timer, or indicate an identifier of the first timer, or indicate to use the first timer,

and the third indication information is further used for indicating an identifier of the first timer, or indicating that the value of the first timer is a preset value when the first timer is adopted.
The terminal device according to any one of claims 46 to 50, wherein the communication unit is further configured to receive fourth indication information, which is sent by the access network device and carries a second timer, where the second timer is used to indicate a duration that the terminal device needs to remain 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 times out;

the processing unit 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 an inactive state or an idle state when the second timer expires.
The terminal device according to any one of claims 46 to 51, wherein before the communication unit sends the connection restoration request to the access network device, the communication unit is further configured to send the second indication information to the access network device, and the first data indicated by the second indication information is uplink data.
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 the first indication information, the first indication information is used to indicate that first data for a terminal device is to be transmitted currently, the first data is uplink data or downlink data, and the first information is used to indicate the access network device to determine a state of the terminal device according to whether the first indication information exists.
Core network device according to claim 53,

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 into a connection state; or

When the first indication information does not exist 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 into an inactive state or an idle state.
Core network device according to claim 53 or 54, wherein the communication unit is further configured to send the first data to the access network device.
The core network device of claim 55, 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:

and sending the first data to the access network equipment according to the second indication information.
The core network device according to claim 53 or 54, wherein before the communication unit sends 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.
Core network device according to any of claims 53 to 57, wherein the core network device is a control plane entity or a user plane entity.
An access network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 16.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 17 to 23.
A core network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 24 to 29.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 16.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 17 to 23.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 24 to 29.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 16.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 17 to 23.
A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 24 to 29.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 16.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 17 to 23.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 24 to 29.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 16.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 17-23.
A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 24-29.