WO2019237359A1 - Wireless communication method, access network device, terminal device and core network device - Google Patents

Abstract

Provided by the embodiments of the present application are a wireless communication method, an access network device, a terminal device and a core network device, wherein the access network device may determine the state of the terminal device according to whether first indication information to be transmitted that indicates currently existing first data is present, thereby reducing the frequency at which the terminal device is paged, and thus reducing signaling overhead. The method comprises: the access network device determining the state of the terminal device according to whether first indication information to be transmitted that indicates currently existing first data is present, wherein the first data is uplink data or downlink data.

Description

Wireless communication method, access network equipment, terminal equipment and core network equipment 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 technique

The terminal device can enter the inactive state when it does not need to perform data interaction with the network device. The terminal device maintains the context of the terminal device when it is in the inactive state. When uplink and downlink data transmission is required, the terminal device initiates the recovery process to enter In the connected state, the terminal device and the network device can send and receive data in the connected state.

When external data needs to be sent to the terminal device in an inactive state, in order to provide better services to external customers, the network device will first know whether the current terminal device is reachable. At this time, multiple search may occur. Scenarios of calling terminal equipment, thus causing some unnecessary signaling overhead.

Summary of the Invention

An embodiment of the present application provides a wireless communication method, an access network device, a terminal device, and a core network device. The access network device can determine the status of the terminal device according to whether there is first instruction information indicating that there is currently first data to be transmitted. Therefore, the number of paging times to the terminal device is reduced, and further, the signaling overhead is reduced.

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

The access network device determines the status of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, and the first data is uplink data or downlink data.

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

The terminal device sends a connection restoration request to the access network device;

Receiving, by the terminal device, first indication information indicating the status of the terminal device sent by the access network device, wherein the first indication information is that the access network device indicates that first data currently exists according to whether there is a presence The second indication information to be transmitted is indication information sent after determining the state of the terminal device, and the first data is uplink data or downlink data;

The terminal device determines the held state according to the first instruction information.

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

The core network device sends first information to the access network device, where the first information includes the first indication information, or does not include the first indication information, and the first indication information is used to indicate that a first Data is to be transmitted, 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 instruction information exists.

According to a fourth aspect, an access network device is provided, which is configured to execute the method in the first aspect or the implementation manners thereof.

Specifically, the access network device includes a functional module for executing the method in the above-mentioned first aspect or each implementation manner thereof.

In a fifth aspect, a terminal device is provided for executing the method in the above-mentioned second aspect or its implementations.

Specifically, the terminal device includes a functional module for executing the method in the above-mentioned second aspect or each implementation manner thereof.

According to a sixth aspect, a core network device is provided, which is configured to execute the method in the third aspect or each implementation manner thereof.

Specifically, the core network device includes a function module for executing the method in the third aspect or the implementation manners thereof.

In a seventh aspect, an access network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the method in the first aspect or the implementation manners thereof.

According to an eighth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or the implementations thereof.

In a ninth aspect, a core network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the method in the third aspect or the implementations thereof.

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

Specifically, the chip includes a processor for invoking and running a computer program from the memory, so that the device installed with the chip executes any one of the first to third aspects described above or implementations thereof. method.

According to an eleventh aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method in any one of the first to third aspects described above or in its implementations.

In a twelfth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute any one of the first to third aspects described above or a method in each implementation thereof.

According to a thirteenth aspect, a computer program is provided which, when run on a computer, causes the computer to execute any one of the first to third aspects described above or a method in each implementation thereof.

Through the above technical solution, the access network device can determine the status of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, thereby reducing the number of pagings to the terminal device, and further reducing signaling overhead.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG. 2 is a schematic flowchart of a wireless communication method according to an embodiment of the present application.

FIG. 3 is a schematic flowchart of another wireless communication method according to an embodiment of the present application.

FIG. 4 is a schematic flowchart of still another wireless communication method according to an embodiment of the present application.

FIG. 5 is a schematic flowchart of still another wireless communication method according to 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 according to an embodiment of the present application.

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

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

detailed description

The 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. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, or a subsequent version of the communication system in.

Exemplarily, the 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 the terminal device 120 (or referred to as a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located within the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system. (Evolutional NodeB, eNB or eNodeB), or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device may be a mobile switching center, relay station, access point, vehicle equipment, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in public land mobile networks (PLMN) that will evolve in the future.

The communication system 100 further includes at least one terminal device 120 located within a coverage area of the network device 110. As the "terminal equipment" used herein includes, but is not limited to, connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection ; And / or another data connection / network; and / or via a wireless interface, such as for cellular networks, Wireless Local Area Networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and / or another terminal device configured to receive / transmit communication signals; and / or Internet of Things (IoT) devices. A terminal device configured to communicate through a wireless interface may be referred to as a “wireless communication terminal”, a “wireless terminal”, or a “mobile terminal”. Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communications systems (PCS) terminals that can combine cellular radiotelephones with data processing, facsimile, and data communications capabilities; can include radiotelephones, pagers, Internet / internal PDA with network access, Web browser, notepad, calendar, BeiDou Navigation Satellite System (BDS) and Global Positioning System (GPS) receiver; and conventional laptop and / or palm Receiver or other electronic device including a radiotelephone transceiver. A terminal device can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Processing Assistant (PDA), and wireless communication. Functional handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved PLMNs, etc.

Optionally, the terminal devices 120 may perform terminal direct connection (Device to Device, D2D) communication.

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

FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.

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

It should be understood that the device having a communication function in the 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 specific devices described above, and will not be repeated here. The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobile management entity, and the like, which is not limited in the embodiments of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" in this document is only an association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases. In addition, the character "/" in this text generally indicates that the related objects are an "or" relationship.

FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.

S210. The access network device determines the state of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, where the first data is uplink data or downlink data.

It should be understood that the first data is directed to 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 in the following manner:

method one,

The access network device receives the first instruction information sent by the terminal device. At this time, the first data indicated by the first instruction information is uplink data.

Way two,

The access network device receives the first indication information sent by the core network device. 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 instruction information may be sent to the access network device.

As another example, the core network device may determine that the terminal device has uplink data to be transmitted according to the contract information of the terminal device and / or external service information. At this time, the core network device may send the first instruction to the access network device. information.

Optionally, when the first indication information indicating that the first data is to be transmitted currently exists, the access network device determines that the terminal device needs to be configured 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 can be configured to a connected state through the following process:

Step 1: 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 resume the connection.

Optionally, the first paging message carries second instruction information including timing information of the first timer, and the second instruction information is used to instruct the terminal device to send a third message based on a random access process. After the message (Message 3, MSG 3), the first timer is started, and before the first timer expires, the first timer based on the random access process that receives the first data and encapsulates the first data sent by the access network device is received. Four messages (Message 4, MSG 4), and when the first timer expires, re-initiate a connection recovery request or switch to an idle state.

It should be noted that after receiving the paging message, the terminal device starts the first timer after sending the MSG based on the random access process according to the second instruction information, and starts the first timer and Before the timeout, the MSG4 based on the random access process that encapsulates the first data sent by the access network device is received, and when the first timer times out, a connection restoration request is re-initiated or switched to an idle state.

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

Wherein, when the second instruction information is also used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.

Step 2: The access network device receives a connection restoration request sent by the terminal device.

Step 3: In response to the connection restoration request, the access network device configures the terminal device in a connected state.

In step four, the access network device sends third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to remain connected.

Keeping the terminal device 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 specific period of time, for example, before the first timer expires In the connected state.

It should be noted that when the access network device configures the terminal device in a connected state, it may perform only some steps in steps 1 to 4. For example, the access network device performs only steps 1 to 3. As another example, the terminal device only performs step one.

Optionally, as an example, a second timer is configured in the access network device, and the second timer is used to indicate the length of time 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,

When the second timer expires, the terminal device 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 (downlink data) to the access network device. The first data (uplink data).

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

The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fourth instruction information is used to instruct the core network device to send the first data to the access network device before the second timer times out.

It should be noted that after receiving the fourth instruction 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 instruction information. .

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

The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fifth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer times out.

It should be noted that, after receiving the fifth instruction information, the terminal device may keep the connection state for receiving the first data (downlink data) before the second timer expires according to the fifth instruction information. ), Or for sending the first data (uplink data), and entering an inactive state when the second timer times out.

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 MSG4 based on a random access process. , And sending to the terminal device the MSG based on the random access process.

Optionally, the access network device may determine that there is no first indication information indicating that the first data to be transmitted currently exists:

Way A,

The access network device receives first information sent by a core network device, 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 there is no first indication information indicating that the first data is currently to be transmitted, the access network device determines that the terminal device needs to be configured to 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:

In step 1, the access network device sends a second paging message to the terminal device, and the second paging message is used to trigger the terminal device in an inactive state or in an idle state to resume the connection.

Step 2: The access network device sends sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to remain in an inactive state or an idle state.

It should be noted that, when the access network device configures the terminal device in an inactive state or an idle state, it may only perform step 1 and not step 2.

Optionally, in the 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 present application, the access network device can determine the state of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, thereby reducing the number of pagings to the terminal device, and further, reducing Signaling overhead.

FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application.

S310: The terminal device sends a connection restoration request to the access network device.

S320. The terminal device receives first instruction information sent by the access network device and indicating the status of the terminal device, where the first instruction information is information indicating whether the access network device currently has first data to be transmitted according to whether there is an indication. The second indication information is indication information sent after determining the state of the terminal device, and the first data is uplink data or downlink data.

S330. The terminal device determines the maintained state according to the first instruction information.

Optionally, when the second indication information exists at the access network device, the first indication information is used to instruct the terminal device to remain connected; or

When the second indication information does not exist at the access network device, the first indication information is used to instruct the terminal device to remain in an inactive state or an idle state.

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

The terminal device receives a first paging message sent by the access network device, and the first paging message is used to trigger the terminal device in an inactive state or in an idle state to resume the 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, and the third indication information is used to instruct the terminal The device starts the first timer after sending the third message MSG3 based on the random access process. Before the first timer expires, the device receives the random-based random packet based on the downlink data sent by the access network device. The fourth message MSG4 in the access process, and when the first timer expires, re-initiate a connection recovery request or switch to an idle state;

The method 300 includes:

The terminal device starts the first timer after sending the MSG based on the random access process according to the third instruction information, and receives the encapsulation sent by the access network device before the first timer expires. The downlink data is based on MSG 4 in the random access process, and when the first timer expires, a connection restoration request is re-initiated or switched to an idle state.

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

Wherein, when the third instruction information is also used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.

Optionally, the method 300 further includes:

Receiving, by the terminal device, fourth instruction information sent by the access network device and carrying a second timer, where the second timer is used to indicate the length of time that the terminal device needs to remain connected, and the fourth instruction information is Instruct the terminal device to enter an inactive state or an idle state when the second timer times out;

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.

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 expires.

Optionally, the method 300 includes:

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

It should be understood that, for steps in the wireless communication method 300, reference may be made to corresponding steps in the wireless communication method 200. For brevity, details are not described herein again.

Therefore, in the embodiment of the present application, the access network device can determine the status of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, and the terminal device can also know the status that needs to be maintained in time, thereby reducing The paging times of the access network device to the terminal device, thereby reducing the signaling overhead.

FIG. 4 is a schematic flowchart of a wireless communication method 400 according to an embodiment of the present application.

S410. The core network device sends first information to the access network device, where the first information includes the first indication information, or does not include the first indication information, and the first indication information is used to indicate that there is currently a first information for the terminal device. Data is to be transmitted, 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 instruction information exists.

Optionally, when the first indication information exists in the first information, the first information is used to instruct the access network device to determine that a 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 to instruct the access network device to determine that the state of the terminal device needs to be configured as 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 includes:

The core network device receives second instruction information sent by the access network device and carrying a first timer, where the first timer is used to indicate the length of time that the terminal device needs to remain connected, and the second instruction information is used for Sending the first data to the access network device before the timeout of the first timer is instructed;

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

The core network device sends the first data to the access network device according to the second instruction information.

It should be noted 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:

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, for steps in the wireless communication method 400, reference may be made to corresponding steps in the wireless communication method 200. For brevity, details are not described herein again.

Therefore, in the embodiment of the present application, the access network device can determine the state of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, and the core network device can also know the state that the terminal device needs to maintain in time. Thereby, the number of paging times of the access network device to the terminal device is reduced, thereby further reducing the signaling overhead.

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: A location request (location request) sent by a core network device to an 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 it needs to send downlink data to the terminal device; it may also determine the terminal according to the contract information of the terminal device and / or external service information When the device has uplink data to be transmitted, it sends the location request to the access network device.

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 to trigger the terminal device in the inactive state to resume the connection.

Optionally, the first paging message carries second indication information including a first timer, and the second indication information is used to instruct the terminal device to start the MSG after sending the MSG based on the random access process. A first timer, before the first timer expires, receiving the MSG in the random access process that encapsulates the first data and sent by the access network device, and restarts when the first timer expires Initiate a connection restoration request or switch to the idle state.

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

Wherein, when the second instruction information is also used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.

S530. The terminal device sends a connection restoration request to the access network device.

It should be noted that the connection restoration request may be a radio resource control (Radio Resource Control, RRC) connection restoration request.

S540. The access network device determines that the terminal device is configured in a connected state.

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

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

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

Before the second timer expires, configuring the terminal device in a connected state,

When the second timer expires, the terminal device is configured to be in an inactive state.

S550. The access network device sends a location 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 a connection restoration 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 the connected state before the second timer expires, and is used to receive the first data, 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 device 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 currently first data to be transmitted, 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 instruction information sent by the terminal device, where the first data indicated by the first instruction information is uplink data;

The processing unit 610 is specifically configured to:

It is determined that the terminal device needs to be configured in 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 in 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 the connection.

Optionally, the first paging message carries second indication information including a first timer, and the second indication information is used to instruct the terminal device to start the MSG after sending the MSG based on the random access process. A first timer, before the first timer expires, receiving the MSG in the random access process that encapsulates the first data and sent by the access network device, and restarts when the first timer expires Initiate a connection restoration request or switch to the idle state.

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

Wherein, when the second instruction information is also used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.

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 in a connected state.

Optionally, the communication unit 620 is further configured to send third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to remain connected.

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

The processing unit 610 is further configured to:

Start the second timer, and

Before the second timer expires, configuring the terminal device in a connected state,

When the second timer expires, the terminal device is configured to be in an inactive state or an idle state.

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

The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fourth instruction information is used to instruct the core network device to send the first data to the access network device before the second timer times out.

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

The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fifth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer times out.

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 the MSG 4 based on a random access process;

The communication unit 620 is further configured to send the MSG 4 based on the random access process 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 an inactive state or in an idle state to resume the connection.

Optionally, the communication unit 620 is further configured to send sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to remain in an inactive state or an idle state.

Optionally, the core network device 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 access network device 600 according to the embodiment of the present application are respectively to implement the corresponding process of the access network device in the method 200 in FIG. 2. For simplicity, in This is not repeated here.

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 indicating the status of the terminal device sent by the access network device, where the first indication information is that the access network device indicates that the first data currently exists according to whether there is an indication The second indication information to be transmitted is indication information sent after determining the state of the terminal device, and the first data is uplink data or downlink data;

The processing unit 720 is configured to determine a held state according to the first instruction information.

Optionally, when the second indication information exists at the access network device, the first indication information is used to instruct the terminal device to remain connected; or

When the second indication information does not exist at the access network device, the first indication information is used to instruct the terminal device to remain in an inactive state or an idle state.

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 For triggering the terminal device in the inactive state or in the idle state to resume 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, and the third indication information is used to indicate the The terminal device starts the first timer after sending the third message MSG3 based on the random access process, and before the first timer expires, the terminal device receives the packet based on the downlink data sent by the access network device. The fourth message MSG in the random access process, and when the first timer expires, re-initiate a connection recovery request or switch to an idle state;

The processing unit 720 is further configured to:

According to the third instruction information, after sending the MSG based on the random access process, the first timer is started, and before the first timer expires, the downlink packet encapsulated by the access network device is received. The data is based on the MSG in the random access process, and when the first timer expires, a connection restoration request is re-initiated or switched to an idle state.

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

Wherein, when the third instruction information is also used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.

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

The communication unit 710 is further configured to receive fourth indication information that is sent by the access network device and carries a second timer, where the second timer is used to indicate the length of time that the terminal device needs to remain in the connected state. The indication information is used to instruct the terminal device to enter an inactive state or an idle state when the second timer times out;

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 when the second timer expires. Or idle.

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 instruction information to the access network device, and the second instruction information indicates The first data 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 embodiment of the present application are respectively to implement the corresponding process of the terminal device in the method 300 in FIG. .

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 the access network device, where the first information includes the first indication information, or does not include the first indication information, and the first indication information is used to indicate that a first A data is to be transmitted, 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 instruction information exists.

Optionally, when the first indication information exists in the first information, the first information is used to instruct the access network device to determine that a 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 to instruct the access network device to determine that the state of the terminal device needs to be configured as an inactive state or an idle state.

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:

Receive second instruction information sent by the access network device and carrying a first timer, where the first timer is used to indicate the length of time that the terminal device needs to remain connected, and the second instruction information is used to indicate Sending the first data to the access network device before the first timer expires;

The communication unit 810 is specifically configured to:

Sending the first data to the access network device according to the second instruction information.

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

The processing unit 820 is configured to determine, according to the contract information of the terminal device and / or external service information, that the terminal device has uplink data to be transmitted.

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 to implement the corresponding process of the core network device in the method 400 in FIG. More details.

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 further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application.

The memory 920 may be a separate device independent of 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 send information or data to other devices, or receive other Information or data sent by the device.

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

Optionally, the communication device 900 may specifically be an access network device according to the embodiment of the present application, and the communication device 900 may implement a corresponding process implemented by the access network device in each method in the embodiments of the present application. This is not repeated here.

Optionally, the communication device 900 may specifically be a mobile terminal / terminal device in the embodiment of the present application, and the communication device 900 may implement the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiments of the present application, for the sake of simplicity , Will not repeat them here.

Optionally, the communication device 900 may specifically be a core network device in the embodiment of the present application, and the communication device 900 may implement a corresponding process implemented by the core network device in each method in the embodiments of the present application. More details.

FIG. 10 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 1000 shown in FIG. 10 includes a processor 1010, and the processor 1010 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. 10, the chip 1000 may further include a memory 1020. The processor 1010 may call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device independent of the processor 1010, or may be integrated in 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. Specifically, the processor 1010 may obtain information or data sent by other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips. Specifically, the processor 1010 can output information or data to other devices or chips.

Optionally, the chip can be applied to the access network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the access network device in each method of the embodiment of the present application. To repeat.

Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For simplicity, here No longer.

Optionally, the chip can be applied to the core network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the core network device in each method of the embodiment of the present application. For brevity, it will not be repeated here.

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

FIG. 11 is a schematic block diagram of a communication system 1100 according to 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 used to implement the corresponding function implemented by the terminal device in the above method, and the access network device 1120 may be used to implement the corresponding function implemented by the access network device in the above method, and the core network The device 1130 may be configured to implement a corresponding function implemented by the core network device in the foregoing method. For brevity, I will not repeat them here.

It should be understood that the processor in the embodiment of the present application may be an integrated circuit chip and has a signal processing capability. In the implementation process, each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above 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 (Field Programmable Gate Array, FPGA), or other Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application may be implemented or executed. 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 combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor. A software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory. The volatile memory may be Random Access Memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (Synchlink DRAM, SLDRAM ) And direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (SDRAM), double data rate Synchronous dynamic random access memory (Double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM), direct memory bus random access memory (Direct RAMbus RAM, DR RAM) and so on. That is, the memories in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.

An embodiment of the present application further provides 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 process implemented by the access network device in each method in the embodiments of the present application. Concise, I won't repeat them here.

Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal / terminal device in each method in the embodiment of the present application. For the sake of brevity, I won't repeat them here.

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 causes the computer to execute the corresponding process implemented by the core network device in each method in the embodiment of the present application. For simplicity, I will not repeat them here.

An embodiment of the present application further provides a computer program product, including computer program instructions.

Optionally, the computer program product may be applied to an access network device in the embodiment of the present application, and the computer program instruction causes a computer to execute a corresponding process implemented by the access network device in each method in the embodiment of the present application, for simplicity , Will not repeat them here.

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 a corresponding process implemented by the mobile terminal / terminal device in each method of the embodiments of the present application, For brevity, I will not repeat them here.

Optionally, the computer program product may be applied to a core network device in the embodiments of the present application, and the computer program instructions cause a computer to execute a corresponding process implemented by the core network device in each method of the embodiments of the present application. This is not repeated here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program may be applied to an access network device in the embodiment of the present application, and when the computer program is run on a computer, the computer is caused to execute a corresponding method implemented by the access network device in each method of the embodiment of the application The process is not repeated here for brevity.

Optionally, the computer program can be applied to a mobile terminal / terminal device in the embodiment of the present application, and when the computer program is run on a computer, the computer executes each method in the embodiment of the application by the mobile terminal / terminal device. The corresponding processes are not repeated here for brevity.

Optionally, the computer program may be applied to a core network device in the embodiment of the present application. When the computer program is run on a computer, the computer program is caused to execute a corresponding process implemented by the core network device in each method in the embodiment of the present application. For brevity, I will not repeat them here.

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

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

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

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

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

If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause 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 method described in the embodiments of the present application. The foregoing storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory) ROM, random access memory (Random Access Memory, RAM), magnetic disks or optical disks and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims (73)

1. A wireless communication method, comprising:

   The access network device determines the state of the terminal device according to whether there is first indication information indicating that there is currently first data to be transmitted, where the first data is uplink data or downlink data.
2. The method according to claim 1, further comprising:

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

   The determining, by the access network device according to whether there is first indication information indicating that there is currently first data to be transmitted, the status of the terminal device includes:

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

   Receiving, by the access network device, the first indication information sent by a core network device;

   The determining, by the access network device according to whether there is first indication information indicating that there is currently first data to be transmitted, the status of the terminal device includes:

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

   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 resume the connection.
5. 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 instruct the terminal device to send a message based on After the third message MSG3 in the random access process, the first timer is started, and before the first timer expires, receiving a packet based on the first data sent by the access network device is received. The fourth message MSG4 in the random access process, and when the first timer expires, re-initiate a connection restoration request or switch to an idle state.
6. The method according to claim 5, wherein the second indication information is further used to indicate a value of the first timer, or an identifier of the first timer, or an instruction to use the Mentioned first timer,

   Wherein, when the second instruction information is further used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.
7. The method according to any one of claims 4 to 6, wherein the method further comprises:

   Receiving, by the access network device, a connection restoration request sent by the terminal device;

   In response to the connection restoration request, the access network device configures the terminal device in a connected state.
8. The method according to claim 7, further comprising:

   The access network device sends third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to remain connected.
9. 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 to indicate that the terminal device needs to be kept in a connected state. The method further includes:

   The access network device starts the second timer, and

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

   When the second timer expires, configure the terminal device to an inactive state or an idle state.
10. The method according to any one of claims 2 to 9, further comprising:

    Sending, by the access network device, fourth indication information carrying a second timer to the core network device, wherein:

    The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fourth instruction information is used to instruct the core network device to report to the access network device before the second timer expires. Sending the first data.
11. The method according to any one of claims 2 to 10, wherein the method further comprises:

    Sending, by the access network device, fifth indication information carrying a second timer to the terminal device, where:

    The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fifth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer times out.
12. The method according to any one of claims 3 to 11, wherein the method further comprises:

    Receiving, by the access network device, the first data sent by the core network device;

    The access network device encapsulates the first data into an MSG 4 based on a random access process;

    The access network device sends the MSG based on the random access process to the terminal device.
13. The method according to claim 1, further comprising:

    Receiving, by the access network device, first information sent by a core network device, the first information does not carry downlink data to be transmitted, and / or, the first information does not carry the first indication information;

    The determining, by the access network device according to whether there is first indication information indicating that there is currently first data to be transmitted, the status of the terminal device includes:

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

    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 resume the connection.
15. The method according to claim 14, further comprising:

    The access network device sends sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to remain in an inactive state or an idle state.
16. 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.
17. A wireless communication method, comprising:

    The terminal device sends a connection restoration request to the access network device;

    Receiving, by the terminal device, first indication information indicating the status of the terminal device sent by the access network device, wherein the first indication information is that the access network device indicates that first data currently exists according to whether there is a presence The second indication information to be transmitted is indication information sent after determining the state of the terminal device, and the first data is uplink data or downlink data;

    The terminal device determines the held state according to the first instruction information.
18. The method according to claim 17, wherein:

    When the second indication information exists at the access network device, the first indication information is used to instruct the terminal device to remain connected; or

    When the second indication information does not exist at the access network device, the first indication information is used to instruct the terminal device to remain in an inactive state or an idle state.
19. 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, and the first paging message is used to trigger the terminal device in an inactive state or an idle state to resume the connection.
20. 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 instruct the terminal device After sending the third message based on the random access process MSG3, the first timer is started, and before the first timer expires, the downlink data encapsulated by the access network device is received. Based on the fourth message MSG4 in the random access process, and when the first timer expires, re-initiate a connection restoration request or switch to an idle state;

    The method includes:

    According to the third instruction information, the terminal device starts the first timer after sending the MSG based on the random access process, and receives the connection before the first timer times out. The MSG 4 based on the random access process that encapsulates the downlink data and is sent by the network access device, and re-initiates a connection restoration request or switches to an idle state when the first timer expires.
21. The method according to claim 20, wherein the third indication information is further used to indicate a value of the first timer, or an identifier of the first timer, or an instruction to use the Mentioned first timer,

    Wherein, when the third instruction information is further used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.
22. The method according to any one of claims 17 to 21, wherein the method further comprises:

    Receiving, by the terminal device, fourth indication information carrying a second timer sent by the access network device, where the second timer is used to indicate a length of time that the terminal device needs to remain in a connected state, and the first Four indication information are used to instruct the terminal device to enter an inactive state or an idle state when the second timer times out;

    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.
23. The method according to any one of claims 17 to 22, wherein before the terminal device sends the connection restoration request to the access network device, the method includes:

    The terminal device sends the second instruction information to the access network device, and the first data indicated by the second instruction information is uplink data.
24. A wireless communication method, comprising:

    The core network device sends first information to the access network device, where the first information includes the first indication information, or does not include the first indication information, and the first indication information is used to indicate that a first Data is to be transmitted, 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 instruction information exists.
25. The method according to claim 24, wherein:

    When the first indication information exists in the first information, the first information is used to instruct the access network device to determine that a 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 to instruct the access network device to determine that a state of the terminal device needs to be configured as an inactive state or an idle state.
26. The method according to claim 24 or 25, further comprising:

    Sending, by the core network device, the first data to the access network device.
27. The method according to claim 26, further comprising:

    Receiving, by the core network device, second indication information carrying a first timer sent by the access network device, where the first timer is used to indicate a length of time that the terminal device needs to remain in a connected state, The second indication information is used to instruct to send the first data to the access network device before the first timer expires;

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

    The core network device sends the first data to the access network device according to the second instruction information.
28. The method according to claim 24 or 25, wherein before the core network device sends the first information to the access network device, the method further comprises:

    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.
29. The method according to any one of claims 24 to 28, wherein the core network device is a control plane entity or a user plane entity.
30. 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 currently first data to be transmitted, where the first data is uplink data or downlink data.
31. The access network device according to claim 30, wherein the access network device further comprises:

    A communication unit, configured to receive the first indication information sent by the terminal device, and the first data indicated by the first indication information is uplink data;

    The processing unit is specifically configured to:

    It is determined that the terminal device needs to be configured in a connected state.
32. The access network device according to claim 30, wherein the access network device further comprises:

    A communication unit, configured to receive the first instruction 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.
33. The access network device according to claim 31 or 32, wherein

    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 resume the connection.
34. The access network device according to claim 33, wherein the first paging message carries second indication information including a first timer, and the second indication information is used to instruct the terminal device After sending the third message MSG based on the random access process, the first timer is started, and before the first timer expires, the first network device receives the first packet encapsulated with the first message sent by the access network device. The data is based on the fourth message MSG4 in the random access process, and when the first timer expires, re-initiate a connection restoration request or switch to an idle state.
35. The access network device according to claim 34, wherein the second indication information is further used to indicate a value of the first timer, or an identifier of the first timer, or Instructing to use the first timer,

    Wherein, when the second instruction information is further used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.
36. The access network device according to any one of claims 33 to 35, wherein

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

    In response to the connection restoration request, the processing unit configures the terminal device in a connected state.
37. The access network device according to claim 36, wherein:

    The communication unit is further configured to send third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to remain connected.
38. The access network device according to any one of claims 31 to 37, wherein a second timer is configured in the access network device, and the second timer is used to indicate that the terminal device needs to maintain The duration of the connection,

    The processing unit is further configured to:

    Starting the second timer, and

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

    When the second timer expires, configure the terminal device to an inactive state or an idle state.
39. The access network device according to any one of claims 31 to 38, wherein

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

    The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fourth instruction information is used to instruct the core network device to report to the access network device before the second timer expires. Sending the first data.
40. The access network device according to any one of claims 31 to 39, wherein

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

    The second timer is used to indicate the length of time that the terminal device needs to remain in the connected state, and the fifth indication information is used to indicate that the terminal device enters an inactive state or an idle state when the second timer times out.
41. The access network device according to any one of claims 32 to 40, wherein

    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 based on a random access process;

    The communication unit is further configured to send the MSG based on the random access process to the terminal device.
42. The access network device according to 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:

    It is determined that the terminal device needs to be configured in an inactive state or an idle state.
43. The access network device according to claim 42, wherein:

    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 resume the connection.
44. The access network device according to claim 43, wherein:

    The communication unit is further configured to send sixth instruction information to the terminal device, where the sixth instruction information is used to instruct the terminal device to remain in an inactive state or an idle state.
45. The access network device according to claim 32, 42, 43 or 44, wherein the core network device is a control plane entity or a user plane entity.
46. A terminal device, comprising:

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

    The communication unit is further configured to receive first indication information that is sent by the access network device and indicates a status of the terminal device, where the first indication information is that the access network device indicates whether the terminal device currently indicates There is indication information that is sent after the second indication information of the first data to be transmitted determines the state of the terminal device, and the first data is uplink data or downlink data;

    A processing unit, configured to determine the maintained state according to the first instruction information.
47. The terminal device according to claim 46, wherein:

    When the second indication information exists at the access network device, the first indication information is used to instruct the terminal device to remain connected; or

    When the second indication information does not exist at the access network device, the first indication information is used to instruct the terminal device to remain in an inactive state or an idle state.
48. The terminal device according to claim 46 or 47, wherein before the communication unit sends the connection restoration request to the access network device, the communication unit is further configured to receive the connection network device A first paging message, the first paging message is used to trigger the terminal device in an inactive state or in an idle state to resume a connection.
49. 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 instruct the terminal The device starts the first timer after sending the third message MSG based on the random access process, and before the first timer expires, the device receives the downlink packet encapsulated by the access network device. The data is based on the fourth message MSG4 in the random access process, and when the first timer expires, re-initiating a connection recovery request or switching to an idle state;

    The processing unit is further configured to:

    According to the third indication information, after sending the MSG based on the random access process, the first timer is started, and before the first timer times out, the access network device sends the The downlink data is based on the MSG 4 in the random access process, and when the first timer expires, a connection restoration request is re-initiated or switched to an idle state.
50. The terminal device according to claim 49, wherein the third indication information is further used to indicate a value of the first timer, or to indicate an identifier of the first timer, or to indicate that The first timer,

    Wherein, when the third instruction information is further used to indicate an identifier of the first timer, or when the first timer is used, the value of the first timer is a preset value.
51. The terminal device according to any one of claims 46 to 50, 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 the length of time that the terminal device needs to remain in the connected state, and the fourth indication information is used to instruct the terminal device to enter 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 communication unit when the second timer expires. The terminal device enters an inactive state or an idle state.
52. 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 connection recovery request to the access network device. The access network device sends the second indication information, and the first data indicated by the second indication information is uplink data.
53. 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, and the first indication information is used to indicate that a terminal device currently exists; The first data is to be transmitted, 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 instruction information exists.
54. The core network device according to claim 53, wherein:

    When the first indication information exists in the first information, the first information is used to instruct the access network device to determine that a 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 to instruct the access network device to determine that a state of the terminal device needs to be configured as an inactive state or an idle state.
55. The 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.
56. The core network device according to claim 55, wherein the communication unit is further configured to:

    Receiving second instruction information sent by the access network device and carrying a first timer, where the first timer is used to indicate the length of time that the terminal device needs to remain connected, and the second instruction information is used for Sending the first data to the access network device before instructing the first timer to expire;

    The communication unit is specifically configured to:

    Sending the first data to the access network device according to the second instruction information.
57. The core network device according to claim 53 or 54, before the communication unit sends the first information to the access network device, the core network device further comprises:

    A processing unit, configured to determine, according to the subscription information of the terminal device and / or external service information, that the terminal device has uplink data to be transmitted.
58. The core network device according to any one of claims 53 to 57, wherein the core network device is a control plane entity or a user plane entity.
59. An access network device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute claims 1 to 16 The method of any one of.
60. A terminal device includes a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute any one of claims 17 to 23. The method of one item.
61. A core network device, comprising: a processor and a memory, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, and execute the instructions in claims 24 to 29. The method of any one.
62. A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device having the chip installed executes the method according to any one of claims 1 to 16.
63. A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device having the chip installed executes the method according to any one of claims 17 to 23.
64. A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device having the chip installed executes the method according to any one of claims 24 to 29.
65. A computer-readable storage medium, which is used for storing a computer program that causes a computer to execute the method according to any one of claims 1 to 16.
66. A computer-readable storage medium, which is used to store a computer program that causes a computer to execute the method according to any one of claims 17 to 23.
67. A computer-readable storage medium, for storing a computer program, which causes a computer to execute the method according to any one of claims 24 to 29.
68. A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 1 to 16.
69. A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 17 to 23.
70. A computer program product, comprising computer program instructions that cause a computer to execute the method according to any one of claims 24 to 29.
71. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 16.
72. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 17 to 23.
73. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 24 to 29.

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