CN109548171B

CN109548171B - Wireless connection method and device

Info

Publication number: CN109548171B
Application number: CN201710652808.1A
Authority: CN
Inventors: 李濛; 应江威; 权威; 杨艳梅
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-02
Filing date: 2017-08-02
Publication date: 2021-04-20
Anticipated expiration: 2037-08-02
Also published as: CN109548171A; WO2019024659A1

Abstract

The application discloses a wireless connection method and a wireless connection device, wherein the method comprises the following steps: an access network node receives a first message from a terminal, wherein the first message is used for requesting to establish wireless connection between the terminal and the access network node; and the access network node sends a second message to the terminal according to the first message, wherein the second message comprises the information of the wireless resources distributed to the terminal.

Description

Wireless connection method and device

Technical Field

The present application relates to the field of information technologies, and in particular, to a wireless connection method and apparatus.

Background

In a third generation partnership project (3 GPP) system, when a terminal in an idle state needs to send uplink signaling or data, or when a core network sends downlink signaling or data to the terminal, the terminal needs to establish a connection with an access network device (e.g., a base station) through a random access procedure. In the process of establishing a connection between a terminal and an access network device, after the terminal receives a Radio Resource Control (RRC) connection setup message sent by the access network device, the terminal sends an RRC connection setup complete message including a service request (service request) message to the access network device, thereby completing establishment of a connection with the access network device. After receiving the RRC connection setup complete message, the access network device passes the service request message to a core network device (e.g., Mobility Management Entity (MME)), which is used to trigger the core network device to set up context information for the terminal. After the core network device establishes context information for the terminal, the context information is sent to the access network device, and the access network device allocates radio resources to the terminal according to the received context information, for example, the radio resources may be Signaling Radio Bearers (SRBs) and Data Radio Bearers (DRBs) between the terminal and the access network device.

It can be seen from the above process that the terminal completes the transition from the idle state to the connected state, and the processes of the random access process, the context information establishment of the terminal, the radio resource allocation of the terminal, and the like need to be performed by the terminal, which are very time-consuming, resulting in a long time for the terminal to wait for the connection establishment, and reducing the system efficiency.

Disclosure of Invention

The application provides a wireless connection method and a wireless connection device, which are used for solving the problem that the conversion time of a terminal from an idle state to a connection state is too long in the prior art.

In a first aspect, an embodiment of the present application provides a wireless connection method, where the method includes:

an access network node receives a first message from a terminal, wherein the first message is used for requesting to establish wireless connection between the terminal and the access network node; and the access network node sends a second message to the terminal according to the first message, wherein the second message comprises the information of the wireless resources distributed to the terminal.

By the method, after receiving the first message, the access network node can skip (or not execute) the step of requesting the core network node for establishing the terminal context information, and directly send the second message to the terminal, thereby reducing the number of signaling sent by the access network node in the process of establishing the wireless connection of the terminal, and reducing the switching time of the terminal from the idle state to the connection state.

In an optional embodiment, before the access network node receives the first message from the terminal, the method further comprises:

the access network node receives context information of the terminal from a core network node.

By the method, the access network node acquires the context information of the terminal before receiving the first message, so that the conversion time of the terminal from the idle state to the connection state is reduced, and the system efficiency is improved.

In an optional embodiment, the method further comprises:

the access network node receives first indication information from a core network node, wherein the first indication information is used for indicating that the access network node does not need to establish wireless connection for the terminal immediately after receiving the context information of the terminal.

In the prior art, when a terminal is in an idle state, only the core network node stores the context information of the terminal, and other nodes will clear the context information of the terminal, so that the access network node immediately establishes wireless connection for the terminal after receiving the context information of the terminal. In the above scheme, after receiving the context information of the terminal, the access network node only stores the context information of the terminal, does not perform signaling interaction with the terminal, but performs signaling interaction with the terminal when the terminal initiates an RRC connection or pages the terminal, and establishes a wireless connection for the terminal, thereby reducing the time for the terminal to transition from an idle state to a connected state.

In an optional implementation manner, the first message includes a temporary mobile identity of the terminal;

before the access network node sends a second message to the terminal according to the first message, the method further includes:

and the access network node acquires the context information of the terminal according to the temporary mobile identifier of the terminal and allocates the wireless resources to the terminal according to the context information of the terminal.

In the scheme, the access network node can accurately and efficiently obtain the context information of the terminal according to the temporary mobile identifier of the terminal, so that the conversion time of the terminal from an idle state to a connected state is reduced, and the efficiency of establishing wireless connection for the terminal is improved.

In an optional implementation manner, the second message further includes second indication information, where the second indication information is used to indicate that the access network node stores context information of the terminal.

In the above scheme, the access network node may indicate, to the terminal, that the context information of the terminal has been stored or established or maintained or acquired in the access network node through the second indication information, and the terminal may not trigger the step in which the core network node establishes the context information for the terminal through the access network node any more, thereby saving the number of signaling sent in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connection state.

In an optional embodiment, the first message includes an establishment cause of the wireless connection;

the access network node sends a second message to the terminal according to the first message, and the method further comprises the following steps:

and when the establishment reason of the wireless connection is mobile source data, the access network node sends the second message to the terminal.

In the above solution, when the establishment cause of the wireless connection is mobile source data, it indicates that the terminal is performing a service request because data needs to be sent or received, and therefore when the context information of the terminal is stored in the access network node, the access network node does not need to interact with the core network node, and directly sends the second message to the terminal, thereby reducing the time for switching the terminal from the idle state to the connected state.

when the access network node receives downlink data of the terminal from the core network node, the access network node sends a first paging message to the terminal; or, when the access network node receives a second paging message from the core network node, the access network node sends a first paging message to the terminal, where the second paging message is used to instruct the access network node to page the terminal; wherein, the first paging message includes second indication information, and the second indication information is used for indicating that the access network node stores the context information of the terminal.

In a second aspect, an embodiment of the present application provides an access network node, including a memory, a transceiver, and a processor, wherein: the memory is used for storing instructions; the processor is configured to execute the instructions stored by the memory and to control the transceiver to perform signal reception and signal transmission, and when the processor executes the instructions stored by the memory, the access network node is configured to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a third aspect, an embodiment of the present application provides an access network node, configured to implement any one of the foregoing first aspect or the first aspect, where the access network node includes corresponding functional modules, for example, includes a processing unit, a receiving unit, a sending unit, and the like, and is respectively configured to implement the steps in the foregoing method.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-readable instructions are stored, and when the computer-readable instructions are read and executed by a computer, the computer is caused to perform the method in the first aspect or any one of the possible designs of the first aspect.

In a fifth aspect, the present application provides a computer program product, which when read and executed by a computer, causes the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

In a sixth aspect, an embodiment of the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method in the first aspect or any one of the possible designs of the first aspect.

In a seventh aspect, an embodiment of the present application provides a wireless connection method, where the method includes:

a terminal sends a first message to an access network node, wherein the first message is used for requesting to establish wireless connection with the access network node; and the terminal receives a second message from the access network node, wherein the second message is sent by the access network node according to the first message, and the second message comprises the information of the wireless resources allocated to the terminal.

By the method, the access network node directly sends the second message to the terminal after receiving the first message, so that the terminal can more quickly obtain the information of the wireless resources allocated to the terminal by the access network node, and the conversion time of the terminal from the idle state to the connected state is reduced.

In an optional implementation manner, the first message is a radio resource control, RRC, connection request message, and the second message is an RRC connection recovery message;

the method further comprises the following steps:

and the terminal sends a third message to the access network node according to the second message, wherein the third message is an RRC connection recovery completion message.

In an optional implementation manner, before the terminal sends the third message to the access network node, the method further includes:

and the terminal receives a first paging message sent by the access network node, wherein the first paging message comprises second indication information, and the second indication information is used for indicating that the context information of the terminal is stored in the access network node.

In the above scheme, the terminal may directly determine that the context information of the terminal has been stored or established or maintained or acquired in the access network node according to the second indication information in the first paging message, so that the RRC connection reconfiguration complete message may be sent to the access network node.

In the above scheme, the terminal may directly determine that the context information of the terminal has been stored or established or maintained or acquired in the access network node according to the second indication information in the second message, so that the terminal may not trigger the step of establishing the context information for the terminal by the core network node through the access network node any more, thereby saving the number of signaling sent in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connection state.

In an eighth aspect, an embodiment of the present application provides an access network node, where the access network node includes a memory, a transceiver, and a processor, where: the memory is used for storing instructions; the processor is configured to execute the instructions stored by the memory and to control the transceiver to perform signal reception and signal transmission, and when the processor executes the instructions stored by the memory, the terminal is configured to perform the method of any one of the possible designs of the seventh aspect or the seventh aspect.

In a ninth aspect, an embodiment of the present application provides an access network node, configured to implement any one of the foregoing seventh aspects or methods of the seventh aspects, where the access network node includes corresponding functional modules, for example, includes a processing unit, a receiving unit, a sending unit, and the like, and is respectively configured to implement the steps in the foregoing methods.

In a tenth aspect, embodiments of the present application provide a computer-readable storage medium, which stores computer-readable instructions, and when the computer-readable instructions are read and executed by a computer, the computer-readable instructions cause the computer to perform the method in any one of the possible designs of the seventh aspect or the seventh aspect.

In an eleventh aspect, embodiments of the present application provide a computer program product, which when read and executed by a computer, causes the computer to perform the method of any one of the possible designs of the seventh aspect or the seventh aspect.

In a twelfth aspect, an embodiment of the present application provides a chip, where the chip is connected to a memory, and is configured to read and execute a software program stored in the memory, so as to implement the method in any one of the possible designs of the seventh aspect or the seventh aspect.

Drawings

FIG. 1 is a schematic diagram of a system architecture suitable for use in embodiments of the present application;

fig. 2 is a flowchart illustrating a wireless connection method according to an embodiment of the present application;

fig. 3 is a schematic diagram of another wireless connection process provided in the embodiment of the present application;

fig. 4 is a schematic diagram of another wireless connection process provided in the embodiment of the present application;

fig. 5 is a schematic diagram of another wireless connection process provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of an access network node according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of another apparatus according to an embodiment of the present disclosure.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 illustrates a system architecture diagram suitable for an embodiment of the present application, and as shown in fig. 1, in a future 5G system architecture, a terminal 101 may communicate with a core network via an access network entity 102, and the terminal may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network, etc. For convenience of description, fig. 1 only illustrates 1 terminal, and in an actual network, multiple terminals may coexist, which is not described herein again.

AN Access Network (AN) entity 102, which may also be referred to as a Radio Access Network (RAN) entity, is hereinafter referred to as AN Access Network entity or AN entity, and is mainly responsible for providing wireless connection for the terminal 101, and ensuring reliable transmission of uplink and downlink data of the terminal 101. The Access network entity 102 may be a gbb (generation Node B) in a 5G System, a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) System or a Code Division Multiple Access (CDMA) System, a Base Station NodeB, NB in a Wideband Code Division Multiple Access (WCDMA) System, an evolved Base Station (eNB, eNodeB) in a Long Term Evolution (Long Term Evolution, LTE) System, or the like.

A Session Management Function (SMF) Entity 103, which may be configured to perform a part of functions of a Mobility Management Entity (MME) in the LTE system, and is mainly responsible for establishing a Session, managing the Session, and the like for the terminal 101. A suitable User Plane Function (UPF) entity may be selected for the terminal 101 according to the location information of the terminal 101.

The user plane functional entity 104 is a functional network element of the user plane of the terminal 101, and has main functions including packet routing and forwarding, Quality of Service (QoS) processing of user plane data, and the like.

An Access and Mobility Management (AMF) entity 105 has the main functions of a termination point of a radio Access network control plane, a termination point of a non-Access signaling, Mobility Management, lawful interception, Access authorization or authentication, and the like.

A Policy Control Function (PCF) entity 106 is mainly responsible for the functions of establishing, releasing, and changing the transmission path of the user plane.

An Authentication Server Function (AUSF) entity 107, whose main functions include user Authentication and the like.

A User Data Management (UDM) entity 108 is mainly responsible for managing the subscription Data of the User, and the like.

The Data Network (DN) 109 may refer to a Network providing services for the terminal 101, for example, some DNs may provide an internet function for the terminal 101, and some DNs may provide a multimedia message function for the terminal 101.

Also shown in fig. 1 are possible implementations of interfaces in various entities, such as an N2 interface between the access network entity 102 and the AMF entity 105, an N9 interface between the access network entity 102 and the UPF entity 104, and so on, which are not described in detail here.

Fig. 2 is a schematic flow chart of a wireless connection method according to an embodiment of the present application. Referring to fig. 2, the method includes:

step 201: the terminal sends a first message to the access network node.

The first message is for requesting establishment of a wireless connection with the access network node.

In this embodiment of the present application, the access network node may refer to an access network entity, and the specific content of the access network entity may refer to the above related description.

Step 202: the access network node receives a first message from the terminal.

Step 203: and the access network node sends a second message to the terminal according to the first message.

The second message includes information of radio resources allocated to the terminal.

Step 204: the terminal receives a second message from the access network node.

Optionally, before step 201, the method further includes: and the core network node establishes context information for the terminal in an idle state according to the historical access information of the terminal.

It should be noted that, the time point when the core network node establishes the context information for the terminal is different from the prior art. In the prior art, context information is established for a terminal only when a core network node receives a service request message of the terminal, but in the embodiment of the application, the core network node predicts a behavior of converting the terminal into a connection state according to historical access information of the terminal, and establishes the context information for the terminal when predicting time of converting the terminal into the connection state.

The historical access information of the terminal may include, but is not limited to: the time point when the terminal accesses the network, the time length when the terminal accesses the network each time, the position information of the terminal accessing the network, the moving range when the terminal accesses the network, the moving speed of the terminal, the moving direction of the terminal and the like.

The core network node may be an MME, an AMF entity, an SMF entity, or the like, and specific functions of the entities may refer to the related description of corresponding entities in fig. 1.

Specifically, the establishing of the context information for the terminal in the idle state may include the following steps:

step one, predicting the position of the terminal when the terminal is converted from an idle state to a connected state.

For example, when the terminal is switched from the connected state to the idle state, a core network node (e.g., MME or AMF entity) responsible for mobility management determines that the terminal is already in the idle state according to a user equipment context release message (UE context release message) or other messages sent by an access network node.

When the terminal is in an idle state, the core Network node may trigger an Enhanced service Mobile Location center (E-SMLC) entity to collect historical access information of the terminal, and send the collected historical access information to a prediction entity responsible for predicting a terminal behavior, where the prediction entity may be an existing Network entity, such as a Network Data Analysis (NWDA) entity, and the prediction entity may also be an application server specially predicting the terminal behavior.

The prediction entity predicts the position and time when the terminal is switched from the idle state to the connected state according to the historical access information of the terminal, and how to predict the position and time specifically, which is not limited in the embodiment of the present application. The prediction entity sends the predicted position and time to a Service Capability Exposure Function (SCEF) entity, a Network Exposure Function (NEF) entity, or a Control Plane Function (CPF) entity. While sending the predicted position and time, the prediction entity may also send information such as a temporary mobile identifier of the terminal, which is not described herein again.

Optionally, when the prediction entity predicts the position and the time, a timer may be started, where the duration of the timer is a difference between time a and time B, and time a is: predicting the time when the terminal is converted into a connection state; the time B is as follows: and the prediction entity predicts the time for converting the terminal into the connection state according to the historical access information of the terminal. For example, the prediction entity predicts the terminal to switch to the connected state at 0 am (i.e., time B), the prediction entity predicts the terminal to switch to the connected state at 0 am (i.e., time a) of the current day, and the timer has a timing duration of 2 hours.

The timer may be set in the SCEF entity, the NEF entity, or the prediction entity, and the timer may also be set in other network elements. The timer is used for sending a message carrying the predicted position of the terminal in the transition state to the connection state to the core network node by the entity provided with the timer when the timer is overtime, so as to trigger the core network node to establish context information for the terminal, which may specifically refer to the following description.

If the timer is set in the SCEF entity or the NEF entity, the predicting entity sends the predicted time to the SCEF entity or the NEF entity. The SCEF entity or the NEF entity sets the timing duration of the timer according to the received predicted time, and sends a message carrying the predicted position of the terminal in the switching state to the core network node (in the 4G system, the core network node is the MME; in the 5G system, the core network node is the AMF entity or the SMF entity) after the timer of the timer is overtime.

If the timer is set in other entities, the other entities send the message carrying the predicted position to the SCEF entity or the NEF entity after the timer is overtime. After receiving the message, the SCEF entity or NEF entity sends a message carrying the predicted position at which the terminal is switched to the connected state to the core network node.

And step two, after receiving the message carrying the predicted position, the core network node establishes context information for the terminal. The specific process of establishing the context information is not limited in this embodiment, and is not described herein again.

The core network node may send the context information of the terminal to the access network node after establishing the context information for the terminal.

After receiving the context information of the terminal, the access network node may determine that it is not necessary to immediately establish a Radio Resource Control (RRC) connection with the access network node if the terminal does not establish an RRC connection with the access network node.

After receiving the context information of the terminal, the access network node may further establish a mapping relationship between the temporary mobile identifier of the terminal and the context identifier of the terminal, so that when the temporary mobile identifier of the terminal is received, the context information of the terminal is indexed according to the temporary mobile identifier of the terminal. The Temporary Mobile identity of the terminal may refer to an International Mobile Subscriber Identity (IMSI) of the terminal or a System Architecture Evolution Temporary Mobile Subscriber identity (S-TMSI), and the Temporary Mobile identity of the terminal may have other forms, which is not described herein again.

Optionally, the core network node may send the context information of the terminal to the access network node, and at the same time, may also send first indication information to the access network node, where the first indication information is used to indicate that the access network node does not need to establish a wireless connection for the terminal immediately after receiving the context information of the terminal. After receiving the context information of the terminal, the access network node may allocate radio resources to the terminal according to the context information of the terminal. The radio resources include, but are not limited to, resources such as signaling radio bearers and data radio bearers between the terminal and the access network node.

In the prior art, when a terminal is in an idle state, only the core network node stores the context information of the terminal, and other nodes will clear the context information of the terminal, so that the access network node immediately establishes wireless connection for the terminal after receiving the context information of the terminal. In the embodiment of the present application, after receiving the context information of the terminal, the access network node does not need to establish a wireless connection for the terminal immediately, in other words, after receiving the context information of the terminal, the access network node only stores the context information of the terminal, does not perform signaling interaction with the terminal, but performs signaling interaction with the terminal when the terminal initiates an RRC connection or pages the terminal, and establishes a wireless connection for the terminal.

Exemplarily, in step 201, the terminal may initiate a random access procedure when there is uplink data to be transmitted; the terminal may also initiate a random access procedure after receiving the first paging message sent by the access network node. Specifically, a random access procedure is initiated by sending a first message.

In this embodiment, the first message may be an RRC Connection Request (Connection Request) message.

In one possible scenario, when the access network node receives downlink data of the terminal from a core network node, the access network node sends a first paging message to the terminal. For example, the access network node is AN entity, the user plane node is a UPF entity, and when the UPF entity is connected with the AN entity, the UPF entity sends downlink data of the terminal to the AN entity after receiving the downlink data of the terminal, so that the AN entity sends a first paging message to the terminal;

in another possible scenario, when the access network node receives the second paging message from the core network node, the access network node sends the first paging message to the terminal. Wherein the second paging message is used to instruct the access network node to page the terminal. And the second paging message is sent by the core network node after determining that the user plane node receives the downlink data of the terminal. For example, the user plane node is AN UPF entity, the access network node is AN entity, and the core network node is AN AMF entity, when there is no connection between the UPF entity and the AN entity, the UPF entity caches downlink data of the terminal after receiving the downlink data of the terminal, and sends a data notification message to the SMF entity, and the SMF entity notifies the AMF entity after receiving the data notification message, and at this time, the AMF entity determines that the UPF entity receives the downlink data of the terminal. The AMF entity sends the second paging message to the AN entity, and the AN entity sends the first paging message to the terminal.

In this embodiment of the present application, a first paging message sent by an access network node may include second indication information, where the second indication information is used to indicate that context information of the terminal is stored in the access network node. Or the second indication information may also be used to indicate that the access network node stores the context information of the terminal, or to indicate that the access network node has already acquired the context information of the terminal, or to indicate that the access network node maintains the context information of the terminal, or to indicate that the access network node has already established the context information of the terminal.

In this embodiment, the first message sent by the terminal may include the temporary mobile identity of the terminal. The temporary mobile identity of the terminal may be used to index context information of the terminal.

Further, the first message may further include an Establishment Cause (Establishment Cause) of the wireless connection, and the like. For example, the establishment cause of the wireless connection is Mobile Origin (MO) data (data), and if the establishment cause of the wireless connection is MO-data, it indicates that the terminal requests a service because it needs to transmit or receive data.

At this time, in step 202, after the access network node receives the first message from the terminal, the context information of the terminal may be obtained according to the temporary mobile identity of the terminal. Specifically, the access network node may obtain a context identifier (context identification) mapped to the temporary mobile identifier of the terminal, and further obtain context information of the terminal according to the context identifier. It should be noted that the mapping relationship between the temporary mobile identifier of the terminal and the context identifier of the terminal is determined after obtaining the context information of the terminal for the access network node.

In addition, after the access network node obtains the context information of the terminal, the radio resource may be allocated to the terminal according to the context information of the terminal. The radio resources include, but are not limited to, resources such as signaling radio bearers and data radio bearers between the terminal and the access network node.

In step 203, the second message may be an RRC Connection Reconfiguration (Connection Reconfiguration) message or an RRC Connection recovery (Connection Resume) message, which may be determined according to actual situations and will be described in detail later.

Further, the radio resource indicated by the information of the radio resource allocated to the terminal included in the second message is determined according to the context information of the terminal.

In this embodiment, in a possible implementation manner, after receiving the first message, the access network node may directly send the second message according to the first message, thereby skipping the step of establishing the context information for the terminal.

In another possible implementation manner, after receiving the first message, the access network node first acquires the establishment cause of the radio connection in the first message. And when the establishment reason of the wireless connection is Mo-data, the access network node sends the second message to the terminal, thereby skipping the step of establishing the context information for the terminal. Correspondingly, when the establishment cause of the wireless connection is not Mo-data, the access network node establishes Context information for the terminal according to the scheme in the prior art, for example, the access network node sends an initialization user equipment message (initialization UE message) to the core network node, and receives an initialization Context Setup Request (initialization Context Setup Request) sent by the core network node, and the like, which is not described herein again.

It should be noted that, when the establishment cause of the wireless connection is Mo-data, it indicates that the terminal needs to send or receive data to make a service request, so that if the access network node has context information of the terminal, the access network node does not need to interact with the core network node. However, when the establishment cause of the wireless connection is not MO-data, the terminal needs to interact with the core network node at this time, for example, when the establishment cause is MO-signaling, it indicates that the terminal may trigger the tracking area update procedure due to movement. At this time, the core network node may allocate network parameters such as a latest Tracking area identity List (TAI List) to the terminal, so that the access network node may perform steps such as sending an initialization ue message according to the existing procedure to complete the allocation of the latest Tracking area List to the terminal.

By the method, the access network node stores the Context information of the terminal before receiving the first message, so that the access network node can skip (or do not execute) the steps of sending an Initial UE message to the core network node and receiving the Initial Context Setup Request and the like sent by the core network node to establish the Context information of the terminal after receiving the first message, and directly send the second message to the terminal, thereby reducing the number of signaling sent by the access network node in the process of establishing wireless connection by the terminal and reducing the conversion time of the terminal from an idle state to a connection state.

In step 204, after the terminal receives the second message, the terminal may determine the radio resource allocated to the terminal by the access network node according to the information of the radio resource in the second message, and configure, according to the radio resource, the SRB2 for carrying the NAS signaling and the dedicated DRB for carrying the data exclusively on the air interface part, so that the terminal completes the transition from the idle state to the connected state.

The terminal may further send a third message to the access network node according to the second message, and specific content of the third message may be different according to different second messages, which are described below respectively.

The first message may be an RRC Connection request message, the second message may be an RRC Connection Reconfiguration message, and the third message may be an RRC Connection Reconfiguration Complete (Connection Reconfiguration Complete) message; alternatively, the first and second electrodes may be,

the first message may be an RRC Connection request message, the second message may be an RRC Connection recovery message, and the third message may be an RRC Connection recovery Complete (Connection Resume Complete) message.

Fig. 3 is a schematic diagram of another wireless connection process provided in the embodiment of the present application. The method shown in fig. 3 may be applied to the following scenarios: the terminal is in an idle state, and when the terminal needs to transmit uplink data, the terminal requests to establish wireless connection between the terminal and the access network node. In addition, the method shown in fig. 3 is based on the method shown in fig. 2, and is described by taking as an example that the first message is an RRC Connection request message, the second message is an RRC Connection Reconfiguration message, and the third message is an RRC Connection Reconfiguration Complete (Connection Reconfiguration Complete) message.

The method shown in fig. 3 specifically includes:

step 301: the core network node establishes context information for the terminal in an idle state.

For how the core network node specifically establishes the context information for the terminal, reference may be made to the foregoing description, which is not described herein again.

Step 302: the access network node receives context information of the terminal from a core network node.

Step 303: the terminal sends a Random Access Preamble to the Access network node.

Wherein the random access preamble can be used to initiate a random access procedure.

Step 304: the Access network node transmits a Random Access Response (RAR) message to the terminal.

The RAR message may include information such as a Cell Radio Network Temporary identity (C-RNTI) allocated to the terminal, which is not described herein again.

Specifically, the access network node may send the RAR message to the terminal over a DownLink-Shared Channel (DL-SCH).

Step 305: the terminal sends a first message, i.e. an RRC connection request message, to the access network node.

The first message may include information such as a temporary mobile identifier of the terminal, a reason for establishing a wireless connection, and the like.

Step 306: the access network node sends an RRC Connection Setup (Connection Setup) message to the terminal.

The RRC connection establishment message may include information such as SRB, DRB, and the like that the access network node allocates to the terminal based on the establishment cause of the radio connection.

In particular, the access network node may transmit the RRC connection setup message to the terminal over the DL-SCH.

Step 307: the terminal sends an RRC Connection Setup Complete (Connection Setup Complete) message to the access network node.

The RRC connection setup complete message may not include a service request (service request) message of a Non-access stratum (NAS). The service request message is used for triggering the core network node to establish the context information for the terminal, and the core network node establishes the context information for the terminal, so the message can not be sent any more.

Wherein, the steps 306 to 307 are optional steps.

Step 308: and the access network node sends a second message, namely an RRC connection reconfiguration message to the terminal.

Wherein, the message may include information of radio resources allocated to the terminal according to the context information of the terminal.

Step 309: and the terminal sends a third message, namely an RRC connection reconfiguration completion message to the access network node.

In the above scheme, the access network node already stores the Context information of the terminal before the terminal sends the first message, so that the access network node may skip (or not execute) the steps of sending an Initial UE message to the core network node and receiving an Initial Context Setup Request and the like sent by the core network node to establish the Context information of the terminal after receiving the first message, and directly send the second message to the terminal, thereby reducing the number of signaling sent by the access network node in the process of establishing wireless connection by the terminal, and reducing the transition time from an idle state to a connected state by the terminal.

Fig. 4 is a schematic diagram of another wireless connection process provided in the embodiment of the present application. The method shown in fig. 4 may be applied to the following scenarios: the terminal is in an idle state, and when the terminal needs to transmit uplink data, the terminal requests to establish wireless connection between the terminal and an access network node. In addition, the method shown in fig. 4 is based on the method shown in fig. 2, and is described by taking the first message as an RRC Connection request message, the second message as an RRC Connection recovery message, and the third message as an RRC Connection response Complete message.

The method shown in fig. 4 specifically includes:

step 401: the core network node establishes context information for the terminal in an idle state.

Step 402: the access network node receives context information of the terminal from a core network node.

Step 403: and the terminal sends a random access lead code to the access network node, and the random access lead code is used for initiating a random access process.

Step 404: and the access network node sends an RAR message to the terminal.

Specifically, the access network node may send a RAR message to the terminal over the DL-SCH.

Step 405: the terminal sends a first message, i.e. an RRC connection request message, to the access network node.

The first message may include information such as a temporary mobile identity of the terminal.

Illustratively, after receiving the first message, the access network node obtains a context identifier mapped with a temporary mobile identifier of the terminal, further obtains context information of the terminal according to the context identifier, and finally allocates wireless resources to the terminal according to the context information of the terminal.

Step 406: the access network node sends a second message, the RRC connection resume message, to the terminal.

Wherein, the second message may further include second indication information.

Step 407: and the terminal sends a third message, namely an RRC connection reconfiguration completion message to the access network node.

For example, when the second message does not carry the second indication information, the terminal may determine that the context information of the terminal has been saved or stored or established or maintained or acquired in the access network node according to the second message.

Compared with the method shown in fig. 3, in the method shown in fig. 4, the access network node sends the RRC Connection recovery message to the terminal instead of the RRC Connection Setup message sent in step 306 in fig. 3, so that the access network node may implicitly inform the terminal by sending the RRC Connection recovery message, context information of the terminal has been saved or stored or established or maintained or acquired in the access network node, and the terminal may send an RRC Connection reconfiguration complete message to the access network node.

Illustratively, when the second message carries the second indication information, the terminal may determine, according to the second indication information, that the context information of the terminal has been saved or stored or established or maintained or acquired in the access network node.

In the above scheme, after determining that the context information of the terminal is stored or established or maintained or acquired in the access network node, the terminal directly sends the third message to the access network node without triggering the core network node through the access network node to establish the context information for the terminal, thereby saving the number of signaling sent in the process of establishing wireless connection by the terminal and reducing the time for switching the terminal from the idle state to the connection state.

Fig. 5 is a schematic diagram of another wireless connection process provided in the embodiment of the present application. The method shown in fig. 5 may be applied to the following scenarios: and the access network node receives the downlink data of the terminal from the core network node, or the access network node receives the second paging message from the core network node. In addition, the method shown in fig. 5 is based on the method shown in fig. 2, and is described by taking a first message as an RRC connection request message, a second message as an RRC connection recovery message, and a third message as an RRC connection recovery complete message as an example.

The method shown in fig. 5 specifically includes:

step 501: the core network node establishes context information for the terminal in an idle state.

Step 502: the access network node receives context information of the terminal from a core network node.

Step 503: and the access network node receives the downlink data of the terminal from the core network node and sends a first paging message to the terminal.

Alternatively, step 503: the access network node receives the second paging message from the core network node and sends the first paging message to the terminal.

Wherein the first paging message may include the second indication information.

Step 504: and the terminal sends a random access lead code to the access network node, and the random access lead code is used for initiating a random access process.

Step 505: and the access network node sends an RAR message to the terminal.

Step 506: the terminal sends a first message, i.e. an RRC connection request message, to the access network node.

Step 507: the access network node sends a second message, the RRC connection resume message, to the terminal.

Step 508: and the terminal sends a third message, namely an RRC connection reconfiguration completion message to the access network node.

Illustratively, the terminal may determine that the context information of the terminal has been saved or stored or established or maintained or acquired in the access network node directly according to the second indication information in the first paging message, so that the RRC connection reconfiguration complete message may be sent to the access network node.

In the above scheme, after determining that the context information of the terminal has been stored or established or maintained or acquired in the access network node according to the second indication information in the first paging message, the terminal directly sends the third message to the access network node, so that the step of establishing the context information for the terminal by the access network node is not triggered any more, thereby saving the number of signaling sent in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connection state.

As shown in fig. 6, a schematic structural diagram of an access network node is provided for the present application, and the access network node may perform the actions of the access network node in the foregoing method embodiments. Optionally, the access network node may be an access network entity or the like. The access network node 600 comprises: a receiving unit 601 and a transmitting unit 602.

A receiving unit 601, configured to receive a first message from a terminal, where the first message is used to request establishment of a wireless connection between the terminal and the access network node;

a sending unit 602, configured to send a second message to the terminal according to the first message, where the second message includes information of the radio resource allocated to the terminal.

In the embodiment of the application, after receiving the first message, the step of requesting the core network node to establish the context information of the terminal may be skipped (or not performed), and the second message may be directly sent to the terminal, thereby reducing the number of signaling sent by the access network node in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connected state.

In an optional embodiment, the receiving unit 601, before receiving the first message from the terminal, is further configured to:

receiving context information of the terminal from a core network node. By the method, the context information of the terminal is acquired before the first message is received, so that the conversion time of the terminal from an idle state to a connected state is reduced, and the system efficiency is improved.

In an optional implementation, the receiving unit 601 is further configured to:

and receiving first indication information from a core network node, wherein the first indication information is used for indicating that the access network node does not need to establish wireless connection for the terminal immediately after receiving the context information of the terminal. By the method, after receiving the context information of the terminal, the access network node only stores the context information of the terminal, does not perform signaling interaction with the terminal, and performs signaling interaction with the terminal when the terminal initiates RRC connection or pages the terminal to establish wireless connection for the terminal, thereby reducing the time for switching the terminal from an idle state to a connected state.

In an optional embodiment, the access network node 600 further comprises a processing unit 603; the first message comprises a temporary mobile identifier of the terminal; sending unit 602, before sending a second message to the terminal according to the first message, the processing unit 603 is configured to:

and acquiring the context information of the terminal according to the temporary mobile identifier of the terminal, and allocating the wireless resources to the terminal according to the context information of the terminal. By the method, the access network node accurately and efficiently obtains the context information of the terminal according to the temporary mobile identifier of the terminal, reduces the conversion time of the terminal from an idle state to a connected state, and improves the efficiency of establishing wireless connection for the terminal.

In an optional implementation, the second message further includes second indication information, where the second indication information is used to indicate that the access network node stores context information of the terminal. By the method, the access network node can indicate the terminal that the context information of the terminal is stored or established or maintained or acquired in the access network node through the second indication information, so that the terminal can not trigger the step that the core network node establishes the context information for the terminal through the access network node any more, the quantity of signaling sent in the process of establishing wireless connection by the terminal is saved, and the time for converting the terminal from an idle state to a connection state is shortened.

In an optional embodiment, the first message includes an establishment cause of the wireless connection; the sending unit 602 is specifically configured to:

and when the establishment reason of the wireless connection is mobile source data, sending the second message to the terminal. In the above solution, when the establishment cause of the wireless connection is mobile source data, it indicates that the terminal is performing a service request because data needs to be sent or received, and therefore when the context information of the terminal is stored in the access network node, the access network node does not need to interact with the core network node, and directly sends the second message to the terminal, thereby reducing the time for switching the terminal from the idle state to the connected state.

In an optional embodiment, before the receiving unit 601 receives the first message from the terminal, the sending unit 602 is further configured to:

when receiving downlink data of the terminal from the core network node, sending a first paging message to the terminal; alternatively, the first and second electrodes may be,

when receiving a second paging message from the core network node, sending a first paging message to the terminal, wherein the second paging message is used for indicating the access network node to page the terminal;

wherein, the first paging message includes second indication information, and the second indication information is used for indicating that the access network node stores the context information of the terminal.

As shown in fig. 7, a schematic structural diagram of a terminal is provided for the embodiment of the present application, where the terminal may be configured to perform actions of the terminal in the foregoing method embodiments, and the terminal 700 includes: a transmitting unit 701 and a receiving unit 702.

A sending unit 701, configured to send a first message to an access network node, where the first message is used to request establishment of a wireless connection with the access network node;

a receiving unit 702, configured to receive a second message from the access network node, where the second message is sent by the access network node according to the first message, and the second message includes information of radio resources allocated to the terminal.

In the above scheme, since the access network node directly sends the second message to the terminal after receiving the first message, the terminal can more quickly obtain the information of the radio resource allocated to the terminal by the access network node, thereby reducing the time for the terminal to switch from the idle state to the connected state.

In an optional embodiment, the first message is a radio resource control, RRC, connection request message, and the second message is an RRC connection recovery message;

the sending unit 701 is further configured to:

and sending a third message to the access network node according to the second message, wherein the third message is an RRC connection recovery completion message.

In an optional embodiment, before the sending unit 701 sends the third message to the access network node, the receiving unit 702 is further configured to:

and receiving a first paging message sent by the access network node, wherein the first paging message comprises second indication information, and the second indication information is used for indicating that the context information of the terminal is stored in the access network node.

In the above scheme, the terminal may directly determine that the context information of the terminal has been stored or established or maintained or acquired in the access network node according to the second indication information in the first paging message, so that the step of the core network node to establish the context information may not be triggered, thereby reducing the transition time from the idle state to the connected state of the terminal.

In an optional implementation, the second message further includes second indication information, where the second indication information is used to indicate that the access network node stores context information of the terminal.

Fig. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure. The apparatus may be an access network node, and the apparatus may perform the actions of the access network node in the above-described embodiments of the method. Optionally, the access network node may be an access network entity or the like.

Referring to fig. 8, the apparatus 800 includes: a processor 801, a transceiver 802, a memory 803, and a communication interface 804; wherein the processor 801, the transceiver 802, the memory 803 and the communication interface 804 are interconnected by a bus 805.

The processor 801 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor 801 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.

The memory 803 may include a volatile memory (volatile memory), such as a random-access memory (RAM); the memory may also include a non-volatile memory (non-volatile memory), such as a flash memory (flash memory), a Hard Disk Drive (HDD) or a solid-state drive (SSD); the memory 803 may also comprise a combination of memories of the kind described above.

The communication interface 804 may be a wired communication access port, a wireless communication interface, or a combination thereof, wherein the wired communication interface may be, for example, an ethernet interface. The ethernet interface may be an optical interface, an electrical interface, or a combination thereof. The wireless communication interface may be a WLAN interface.

The bus 805 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 8, but that does not indicate only one bus or one type of bus.

The memory 803 may be used to store program instructions that the processor 801 invokes stored in the memory 803, which may perform one or more steps of the embodiments shown in the above-described scenarios, or alternative implementations thereof, to cause the access network node 800 to implement the functions of the above-described methods.

A transceiver 802 configured to receive a first message from a terminal, the first message requesting establishment of a wireless connection between the terminal and the access network node;

a processor 801, configured to determine a second message according to the first message, where the second message includes information of a radio resource allocated to the terminal;

a transceiver 802 for transmitting a second message to the terminal.

In the above solution, after receiving the first message, the apparatus may skip (or not execute) the step of requesting the core network node to establish the context information of the terminal, and directly send the second message to the terminal, thereby reducing the number of signaling sent by the access network node in the process of establishing the wireless connection by the terminal, and reducing the time for switching from the idle state to the connected state by the terminal.

In an alternative embodiment, the transceiver 802 is further configured to, prior to receiving the first message from the terminal:

receiving context information of the terminal from a core network node. In the above scheme, before the first message is received, the context information of the terminal is acquired, so that the time for the terminal to switch from the idle state to the connected state is reduced, and the system efficiency is improved.

In an alternative embodiment, the transceiver 802 is further configured to:

and receiving first indication information from a core network node, wherein the first indication information is used for indicating that the access network node does not need to establish wireless connection for the terminal immediately after receiving the context information of the terminal. In the above scheme, after receiving the context information of the terminal, the access network node only stores the context information of the terminal, does not perform signaling interaction with the terminal, but performs signaling interaction with the terminal when the terminal initiates an RRC connection or pages the terminal, and establishes a wireless connection for the terminal, thereby reducing the time for the terminal to transition from an idle state to a connected state.

In an optional embodiment, the first message includes a temporary mobile identity of the terminal;

the transceiver 802, prior to sending a second message to the terminal according to the first message, the processor 801 is configured to:

and acquiring the context information of the terminal according to the temporary mobile identifier of the terminal, and allocating the wireless resources to the terminal according to the context information of the terminal. According to the scheme, the context information of the terminal can be accurately and efficiently obtained according to the temporary mobile identifier of the terminal, so that the conversion time of the terminal from an idle state to a connection state is shortened, and the efficiency of establishing wireless connection for the terminal is improved.

In an optional implementation, the second message further includes second indication information, where the second indication information is used to indicate that the access network node stores context information of the terminal. In the above scheme, the context information of the terminal is already stored in the access network node is indicated to the terminal through the second indication information, so that the terminal can avoid the step of triggering the core network node to establish the context information for the terminal through the access network node, thereby saving the number of signaling sent in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connection state.

In an optional embodiment, the first message includes an establishment cause of the wireless connection; the transceiver 802 is specifically configured to: and when the establishment reason of the wireless connection is mobile source data, sending the second message to the terminal. In the above scheme, when the establishment cause of the wireless connection is mobile source data, it indicates that the terminal needs to send or receive data to make a service request, so that the apparatus directly sends the second message to the terminal without interacting with a core network node after receiving the first message, thereby reducing the transition time from the idle state to the connected state of the terminal.

In an alternative embodiment, the transceiver 802 is further configured to, prior to receiving the first message from the terminal, the transceiver 802:

and when receiving a second paging message from the core network node, sending a first paging message to the terminal, wherein the second paging message is used for indicating the access network node to page the terminal.

Referring to fig. 9, an apparatus, which may be a terminal, may be further provided in this embodiment of the present application, and be configured to perform actions of the terminal in the foregoing method embodiments. The apparatus 900 includes: a processor 901, a transceiver 902, a memory 903, and a communication interface 904; the processor 901, the transceiver 902, the memory 903 and the communication interface 904 are connected to each other through a bus 905, and specific contents of the above modules may refer to descriptions of related modules in fig. 8, which are not described herein again.

The memory 903 may be used to store program instructions, and the processor 901 calls the program instructions stored in the memory 903 to perform:

sending, by a transceiver 902, a first message to an access network node, the first message requesting establishment of a wireless connection with the access network node;

receiving, by the transceiver 902, a second message from the access network node, where the second message is sent by the access network node according to the first message, and the second message includes information of radio resources allocated to the terminal.

In an optional embodiment, the first message is a radio resource control, RRC, connection request message, and the second message is an RRC connection recovery message; the transceiver 902 is also configured to:

In an optional embodiment, before the transceiver 902 sends the third message to the access network node, the transceiver 902 is further configured to:

In the above scheme, the apparatus may directly determine that the context information of the terminal has been stored in the access network node according to the second indication information in the first paging message, so that a step of triggering the core network node to establish the context information may not be required, thereby reducing a transition time of the terminal from an idle state to a connected state.

In the above scheme, the terminal may directly determine that the context information of the terminal has been stored in the access network node according to the second indication information in the second message, and the terminal may not trigger the step in which the core network node establishes the context information for the terminal through the access network node any more, thereby saving the number of signaling sent in the process of establishing the wireless connection by the terminal, and reducing the time for switching the terminal from the idle state to the connection state.

An embodiment of the present application further provides a computer-readable storage medium, configured to store computer software instructions executed by the processor 901, where the computer software instructions include a program executed by the processor 901.

The embodiment of the present application further provides a computer-readable storage medium, which is used for storing computer software instructions executed by the processor 801, and the computer software instructions include a program executed by the processor 801.

An embodiment of the present application further provides a system, including: an access network node as shown in fig. 8 and a terminal as shown in fig. 9.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method of wireless connectivity, the method comprising:

the access network node receives the context information of the terminal from the core network node; the context information of the terminal is established for the terminal in an idle state by the core network node according to the historical access information of the terminal;

an access network node receives a first message from a terminal, wherein the first message is used for requesting to establish wireless connection between the terminal and the access network node;

the access network node sends a second message to the terminal according to the first message, wherein the second message comprises the information of the wireless resources distributed to the terminal;

wherein, the context information of the terminal is established for the terminal in an idle state by the core network node according to the historical access information of the terminal, and the method comprises the following steps:

and predicting the position information and the time when the terminal is converted from an idle state to a connected state through the historical access information of the terminal, and sending the predicted position information to a core network when the predicted time is reached so that the core network establishes the context information of the terminal according to the position information.

2. The method of claim 1, further comprising:

3. The method according to claim 1 or 2, characterized in that the first message comprises a temporary mobile identity of the terminal;

4. The method according to claim 1 or 2, wherein the second message further includes second indication information, and the second indication information is used to indicate that the access network node stores context information of the terminal.

5. The method according to claim 1 or 2, wherein the first message comprises an establishment cause of a wireless connection;

6. A method according to claim 1 or 2, characterised in that before the access network node receives the first message from the terminal, the method further comprises:

when the access network node receives downlink data of the terminal from the core network node, the access network node sends a first paging message to the terminal; alternatively, the first and second electrodes may be,

when the access network node receives a second paging message from the core network node, the access network node sends a first paging message to the terminal, and the second paging message is used for indicating the access network node to page the terminal;

7. A method of wireless connectivity, the method comprising:

a terminal sends a first message to an access network node, wherein the first message is used for requesting to establish wireless connection with the access network node; the access network node stores the context information of the terminal; the context information of the terminal is established for the terminal in an idle state by a core network node according to the historical access information of the terminal and is sent to the access network node;

the terminal receives a second message from the access network node, wherein the second message is sent by the access network node according to the first message, and the second message comprises information of wireless resources allocated to the terminal;

8. The method of claim 7, wherein the first message is a Radio Resource Control (RRC) connection request message, and wherein the second message is a RRC connection recovery message;

the method further comprises the following steps:

9. The method of claim 8, wherein before the terminal sends the third message to the access network node, further comprising:

10. The method according to any of claims 7 to 9, wherein the second message further comprises second indication information, and the second indication information is used for indicating that the access network node stores context information of the terminal.

11. An access network node, comprising:

a receiving unit, configured to receive context information of a terminal from a core network node, and receive a first message from the terminal; the context information of the terminal is established by the core network node for the terminal in an idle state according to the historical access information of the terminal, and the first message is used for requesting to establish the wireless connection between the terminal and the access network node;

a sending unit, configured to send a second message to the terminal according to the first message, where the second message includes information of radio resources allocated to the terminal;

12. The access network node of claim 11, wherein the receiving unit is further configured to:

and receiving first indication information from a core network node, wherein the first indication information is used for indicating that the access network node does not need to establish wireless connection for the terminal immediately after receiving the context information of the terminal.

13. The access network node according to claim 11 or 12, characterized in that the access network node further comprises a processing unit; the first message comprises a temporary mobile identifier of the terminal;

before the sending unit sends a second message to the terminal according to the first message, the processing unit is configured to:

and acquiring the context information of the terminal according to the temporary mobile identifier of the terminal, and allocating the wireless resources to the terminal according to the context information of the terminal.

14. The access network node according to claim 11 or 12, wherein the second message further comprises second indication information, and the second indication information is used to indicate that the access network node stores context information of the terminal.

15. An access network node according to claim 11 or 12, characterized in that the first message comprises an establishment cause of a radio connection;

the sending unit is specifically configured to:

and when the establishment reason of the wireless connection is mobile source data, sending the second message to the terminal.

16. The access network node according to claim 11 or 12, wherein the receiving unit, before receiving the first message from the terminal, the sending unit is further configured to:

17. A terminal, comprising:

a sending unit, configured to send a first message to an access network node, where the first message is used to request establishment of a wireless connection with the access network node; the access network node stores the context information of the terminal; the context information of the terminal is established for the terminal in an idle state by a core network node according to the historical access information of the terminal and is sent to the access network node;

a receiving unit, configured to receive a second message from the access network node, where the second message is sent by the access network node according to the first message, and the second message includes information of radio resources allocated to the terminal;

18. The terminal of claim 17, wherein the first message is a Radio Resource Control (RRC) connection request message, and wherein the second message is a RRC connection recovery message;

the sending unit is further configured to:

19. The terminal of claim 18, wherein the sending unit, before sending the third message to the access network node, is further configured to:

20. A terminal according to any of claims 17 to 19, wherein the second message further comprises second indication information, and the second indication information is used to indicate that the access network node stores context information of the terminal.

21. A computer-readable storage medium having computer-readable instructions stored thereon which, when read and executed by a computer, cause the computer to perform the method of any one of claims 1-10.

22. A computing device comprising at least one processor and at least one memory, wherein the memory stores a computer program that, when read and executed by the processor, causes the processor to perform the method of any one of claims 1-10.