WO2012109987A1

WO2012109987A1 - Connection establishment method and device

Info

Publication number: WO2012109987A1
Application number: PCT/CN2012/071158
Authority: WO
Inventors: 梁靖; 刘佳敏; 秦飞; 赵瑾波
Original assignee: 电信科学技术研究院
Priority date: 2011-02-15
Filing date: 2012-02-15
Publication date: 2012-08-23
Also published as: CN102638900A; CN102638900B

Abstract

Disclosed are a connection establishment method and device for establishing a connection between a UE in a long term evolution local area network (LTE-LAN) and the network. The connection establishment method provided in the present invention comprises: an access point (AP) receives a radio resource control (RRC) connection establishment request transmitted from a UE; if the AP determines, according to the RRC connection request transmitted from the UE, that the UE is allowed access to the network, the AP transmits RRC connection information to the UE, the information carrying the radio resource configuration information of a signal radio bearer (SRB).

Description

The present invention claims the priority of the Chinese patent application filed on February 15, 2011, the Chinese Patent Application No. 201110038679.x, entitled "A Connection Establishment Method and Apparatus", which The entire contents are incorporated herein by reference. Technical field

The present invention relates to the field of communications technologies, and in particular, to a connection establishing method and apparatus.

Background technique

In order to meet the needs of users' growing data services, one is based on long-term evolution (LTE, Long Term)

Evolve) System wireless network access system Long-term evolution of the local area network (LTE-LAN, Long Term Evolve

The Local Area Network system came into being. The LTE-LAN system provides network coverage and wireless access services for users by using an access point (AP, Access Point) device of the LTE-LAN system by constructing a local wireless network. Because the LTE-LAN system uses a flat network architecture, it can realize the access of the user equipment (UE, User Equipment) to the external network. The UE wants to get the service in the LTE-LAN, and needs to establish a connection with the network first. However, due to the introduction of the new flat network structure, the UE cannot use the existing technology to establish a connection with the LTE-LAN.

The existing LTE-LAN is divided into two network architectures: a public LTE-LAN network and a self-use LTE-LAN network. The public LTE-LAN network is generally used by operators and is connected to the carrier's core network equipment and is controlled by the operator, including authentication, accounting, and device management.

Self-use LTE-LAN networks are generally used for home and enterprise self-use networks, usually with IP routing functions assigned to wireless access.

In the AP, the data is directly connected to the Internet (Internet) and/or the intranet (Intranet) through the AP.

In the LTE system, the Mobility Management Entity (MME) and the Serving Gateway (S-GW) are both core network nodes, the MME is a control plane entity, and the S-GW is a user plane entity. The evolved base station (e B, Evolved Node B) is an access network node, and the air interface between the UE and the UE is called a Uu interface, and the UE performs radio access through the eNB.

The non-access stratum (NAS, Non Access Stratum) of the UE and the NAS of the MME are peer entities, and the eNB has no NAS layer. The NAS layer of the UE initiates attach, service request, location update, etc., triggers the access layer (AS, Access Stratum) to establish a radio resource control (RRC) connection, and completes the signaling radio in the RRC connection establishment process. The bearer (SRB, Signalling Radio Bearer) is established, and the message of the NAS layer is carried to the eNB in the process, and the eNB passes the NAS message through the S1 interface between the MME or the S-GW and the eNB. It is transmitted to the MME, thus implementing NAS layer communication between the UE and the MME. In the LTE system, the connection establishment of the AS layer is triggered by the NAS layer, and may be caused by attaching, initiating a service, and updating a location. On the network side, the NAS layer is implemented in the MME. In the LTE-LAN system, due to the flattening of the network architecture, there is no MME entity on the core network side, and there is no NAS layer in the UE. Therefore, there is no solution for how the UE triggers the connection establishment and the specific connection establishment process. Summary of the invention

Embodiments of the present invention provide a connection establishment method and apparatus for establishing a connection between a UE and a network in an LTE-LAN system.

A method for establishing a connection provided by an embodiment of the present invention includes:

The access point AP receives the radio resource control RRC connection setup request message sent by the user equipment UE;

The AP sends an RRC connection setup message to the UE according to the RRC connection setup request message sent by the UE. When the UE is allowed to access the network, the AP carries the radio resource configuration information of the SBR.

The user equipment UE sends a radio resource control RRC connection setup request message to the access point AP by using a high layer trigger of the UE, where the upper layer is a protocol layer above the RRC layer;

The UE receives the RRC connection setup message sent by the AP, and completes the establishment of the SRB according to the radio resource configuration information of the radio bearer SRB carried in the UE.

A connection establishing apparatus provided by an embodiment of the present invention includes:

An RRC connection setup request message receiving unit, configured to receive a radio resource control RRC connection setup request message sent by the user equipment UE;

The RRC connection setup message sending unit is configured to send an RRC connection setup message to the UE according to the RRC connection setup request message sent by the UE, and when the UE is allowed to access the network, the radio resource configuration information of the SBR is carried.

a connection establishment triggering unit, configured to send, by using a high-level trigger of the user equipment UE, a radio resource control RRC connection establishment request message to the access point AP, where the upper layer is a protocol layer above the RRC layer;

The RRC connection setup message receiving unit is configured to receive an RRC connection setup message sent by the AP, and complete the establishment of the SRB according to the radio resource configuration information of the signaling radio bearer SRB carried therein.

In the embodiment of the present invention, the RRC connection setup request message sent by the user equipment UE is received by the access point AP; the AP determines, according to the RRC connection setup request message sent by the UE, when the UE is allowed to access the network, The UE sends an RRC connection setup message, which carries the radio resource configuration information of the signaling radio bearer SRB, thereby implementing connection establishment between the UE and the network in the LTE-LAN system.

DRAWINGS

FIG. 1 is a schematic flowchart of a connection establishment method according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a connection establishment process between a UE and a network side according to Embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of a connection establishment process between a UE and a network side according to Embodiment 2 of the present invention;

FIG. 4 is a schematic diagram of a connection establishment process between a UE and a network side according to Embodiment 3 of the present invention;

FIG. 5 is a schematic diagram of a connection establishment process between a UE and a network side according to Embodiment 4 of the present invention;

FIG. 6 is a schematic structural diagram of a connection establishing apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a connection establishing apparatus according to an embodiment of the present invention.

detailed description

The technical solutions provided by the embodiments of the present invention are described below with reference to the accompanying drawings.

On the network side, referring to FIG. 1 , a connection establishment method provided by an embodiment of the present invention includes the following steps:

S101. The access point AP receives a radio resource control RRC connection setup request message sent by the user equipment UE.

S102. The AP sends an RRC connection setup message to the UE according to the RRC connection setup request message sent by the UE, and when the UE is allowed to access the network, the AP carries the radio resource configuration information of the SBR.

Preferably, the method further includes:

The AP receives the RRC connection setup complete message sent by the UE, and confirms that the connection establishment between the UE and the network side is completed according to the RRC connection setup complete message.

Preferably, the method further includes:

The AP acquires and saves the wireless capability information of the UE from the RRC connection setup complete message.

Preferably, after the AP receives the RRC connection setup complete message sent by the UE, the method further includes:

The AP initiates a UE capability query process to the UE, and requests the UE to report the radio capability information of the UE.

The AP receives and saves the wireless capability information reported by the UE.

Preferably, the method further includes:

The AP sends the radio capability information of the UE to the local gateway L-GW.

Preferably, the RRC connection setup message further includes: radio resource configuration information of the data radio bearer DRB. Preferably, after the AP receives the RRC connection setup complete message sent by the UE, the method further includes:

The AP activates the security of the air interface between the UE and the AP, and sends an RRC Connection Reconfiguration message to the UE, including the radio resource configuration information of the data radio bearer DRB.

Correspondingly, in the terminal side, a connection establishment method provided by the embodiment of the present invention includes:

Preferably, the method further includes:

The UE notifies the AP that the connection establishment between the UE and the network side is completed by sending an RRC Connection Setup Complete message to the AP.

Preferably, the RRC connection setup complete message further includes wireless capability information of the UE.

Preferably, after the UE sends the RRC connection setup complete message, the method further includes:

The UE receives the UE capability query message sent by the AP, and sends the wireless capability information of the UE to the AP.

Preferably, the method further includes:

The UE obtains radio resource configuration information of the data radio bearer DRB from the RRC connection setup message, and establishes a DRB according to the radio resource configuration information of the DRB.

The UE receives the RRC connection reconfiguration message sent by the AP, and obtains the radio resource configuration information of the data radio bearer DRB from the UE;

The UE establishes a DRB according to the radio resource configuration information of the DRB.

It can be seen that, from the perspective of the entire LTE-LAN system, the connection establishment method of the LTE-LAN system proposed by the embodiment of the present invention is as follows:

The upper layer of the UE (that is, the protocol layer above the RRC layer, which may be the application layer) triggers the RRC layer of the UE to establish an air interface connection, which may be caused by the UE starting up or starting a service.

The UE initiates a RRC connection establishment process to the network side (AP), which completes the establishment of the signaling radio bearer (SRB), the assignment of the UE in the current AP, and the UE type.

Further, in the RRC connection establishment process, the uplink of the UE wireless capability, the reporting of the MAC address, and the reporting of the International Mobile Subscriber Identity (IMSI) may be completed.

Further, the establishment of a Data Radio Bearer (DRB) can also be completed at the same time.

Specific descriptions of several embodiments are given below. Embodiment 1: The RRC connection is established, and does not carry the wireless capability information of the UE.

As shown in FIG. 2, the connection establishment process between the UE and the network side includes:

The UE sends an RRC connection setup request message to the AP, where the UE may carry information such as the UE identifier and the UE type. The UE identifier may be a random number, a media access control (MAC) address of the UE, an IMSI, or a device identifier.

The UE type may be a data card UE, or a global subscriber identity card (USIM, Universal Subscriber)

Identity Module) UE. According to different UE types, the network can subsequently retrieve different methods of authentication, charging, management, and the like.

The UE's RRC Connection Setup Request message triggers its lower layer (for example, the MAC layer or the physical layer) to initiate random access. In the process of random access, the lower layer (for example, the MAC layer) allocates a Temporary UE Identity (Temp C-RNTI).

After receiving the RRC connection setup request message, the network determines whether the UE is allowed to access the network. If the UE is allowed to access, the RRC connection setup message is sent to the UE, where the radio resource configuration information of the SRB (Signaling Radio Bearer) is carried. Includes information such as Radio Link Control (RLC) configuration, logical channel configuration, MAC configuration, and physical layer configuration. At the same time, the network may also send the RRC connection setup request message sent by the UE as the randomly connected contention resolution information in the MAC connection unit (CE, Connecting Element), and send it to the UE. If the UE is not allowed to access, the AP sends an RRC Connection Setup Reject message to the UE, and the UE receives the message, and considers that the connection establishment fails.

After receiving the RRC connection setup message, the UE establishes an SRB according to the radio resource configuration information, and then sends an RRC connection setup complete message to the network, and the message may also carry the UE's MAC address and/or IMSI, and successfully complete the RRC connection establishment process. At this time, the UE upgrades the Temporary UE Identity (Temporary C-RNTI) allocated by the lower layer (MAC layer) in the random access procedure to the Cell Radio Network Temporary Identity (C-RNTI) of the UE. The UE accepts scheduling on the subsequent network side.

The AP initiates a UE capability query process to the UE, requesting the UE to report its wireless capability information, and the UE may use its own level information (eg, level 1, level 2, ..., level N) as the wireless capability information. The data processing capability, the supported bandwidth, and the uplink and downlink peak rates of the UEs of different levels are different. Therefore, after obtaining the information, the network can provide corresponding services according to the level of the UE. After the UE reports the wireless capability information, the AP saves the wireless capability information reported by the UE, and can send the information to the local gateway (L-GW, Local Gateway), and the L-GW saves the wireless capability information of the UE.

If there is no L-GW node in the network, the AP saves the radio capability information of the UE and does not send the information to the L-GW. Embodiment 2: The RRC connection is established, and the wireless capability information of the UE is reported at the same time.

As shown in FIG. 3, the connection establishment process between the UE and the network side includes: The UE sends an RRC connection setup request message to the AP, where the UE may carry information such as the UE identifier and the UE type. The identifier of the UE may be a random number, a MAC address of the UE, an IMSI, or a device identifier.

The UE type may be a data card UE or a USIM card UE.

After receiving the RRC connection setup request message, the network determines whether the UE is allowed to access the network. If the UE is allowed to access, the RRC connection setup message is sent to the UE, where the radio resource configuration information of the SRB (Signaling Radio Bearer) is carried. Includes information such as RLC configuration, logical channel configuration, MAC configuration, and physical layer configuration). At the same time, the network may also send the RRC connection setup request message sent by the UE as the contention resolution information of the random access in the MAC CE, and send it to the UE.

After receiving the RRC connection setup message, the UE establishes an SRB according to the radio resource configuration information, and then sends an RRC connection setup complete message to the network, where the message carries the radio capability information of the UE (eg, UE level information, etc.), and the message is also The RRC connection establishment process may be successfully completed, and the AP may save the radio capability information of the UE. At this time, the UE upgrades the temporary UE identifier (Temp-C-RNTI) allocated by the lower layer (the MAC layer) in the random access process to the C-RNTI of the UE, and the identifier is used by the UE to accept the scheduling of the subsequent network side.

If there is an L-GW node in the network, after receiving the radio capability information of the UE, the AP may send it to the L-GW, and the L-GW also stores the information.

Embodiment 3: An RRC connection is established, and a DRB is established at the same time.

As shown in FIG. 4, the connection establishment process between the UE and the network side includes:

The UE sends an RRC connection setup request message to the AP, where the UE may carry information such as the UE identifier and the UE type. The UE identifier may be a random number, a MAC address of the UE, an IMSI, or a device identifier.

The UE type may be a data card UE, or a USIM card UE.

After receiving the RRC connection setup request message, the network determines whether the UE is allowed to access the network. If the UE is allowed to access, the RRC connection setup message is sent to the UE, where the radio resource configuration information of the SRB (Signaling Radio Bearer) is carried. Includes information such as RLC configuration, logical channel configuration, MAC configuration, and physical layer configuration). At the same time, the network may also send the RRC connection setup request message sent by the UE as the contention resolution information of the random access in the MAC CE, and send it to the UE. Moreover, in the RRC connection establishment, the radio resource configuration information (including Packet Data Convergence Protocol (PDCP) configuration, RLC configuration, logical channel configuration, MAC configuration, and physical layer configuration of the data radio bearer (DRB) is also carried. And so on), used to establish DRB. After receiving the RRC connection setup message, the UE establishes an SRB according to the radio resource configuration information of the SRB, and establishes a DRB according to the radio resource configuration information of the DRB therein, and then sends an RRC connection setup complete message to the network, where the message is used to confirm the SRB. Successfully established with the DRB, the message may also carry the MAC address and/or IMSI of the UE. At this time, the UE upgrades the temporary UE identifier (Temp C-RNTI) allocated by the lower layer (MAC layer) in the random access process to the C-RNTI of the UE, and the identifier is used by the UE to accept scheduling on the subsequent network side.

Embodiment 4: After the RRC connection is established, the DRB is established.

As shown in FIG. 5, the process of establishing a connection between the UE and the network side includes:

The UE type may be a data card UE, or a USIM card UE.

After receiving the RRC connection setup message, the UE establishes an SRB according to the radio resource configuration information, and then sends an RRC connection setup complete message to the network, and the message may also carry the UE's MAC address and/or IMSI, and successfully complete the RRC connection establishment process. At this time, the UE upgrades the temporary UE identifier (Temporary C-RNTI) allocated by the lower layer (the MAC layer) in the random access process to the C-RNTI of the UE, and the identifier is used by the UE to accept the scheduling of the subsequent network side.

Before the establishment of the DRB, the AP may activate the security of the air interface between the UE and the network side. The specific activation method may use the existing technology, and details are not described herein. By activating the security of the air interface between the UE and the network side, the DRB can be encrypted, and the SRB can be encrypted and integrity protected to improve security.

After the SRB is established, the AP can directly initiate the DRB establishment process without service triggering. Specifically, the AP sends an RRC connection reconfiguration message to the UE, where the radio resource configuration information (including PDCP configuration, RLC configuration, logical channel configuration, MAC configuration, physical layer configuration, and the like) of the data radio bearer (DRB) is carried. Establish a DRB. After receiving the message, the UE establishes a DRB according to the configuration information in the message, and after completing the establishment of the DRB, returns an RRC connection reconfiguration complete message to the AP. The AP receives the message and considers that the DRB is successfully established. If the UE has service data, the DRB bearer is directly used for transmission.

On the network side of the LTE-LAN system, referring to FIG. 6, a connection establishing apparatus according to an embodiment of the present invention includes: The RRC connection establishment request message receiving unit 101 is configured to receive a radio resource control RRC connection setup request message sent by the user equipment UE;

The RRC connection setup message sending unit 102 is configured to send, according to the RRC connection setup request message sent by the UE, an RRC connection setup message to the UE, where the UE is configured to allow the UE to access the network, where the radio resource configuration information of the SBR is carried.

Preferably, the device further comprises:

The RRC connection setup complete message receiving unit 103 is configured to receive an RRC connection setup complete message sent by the UE, and confirm that the connection establishment between the UE and the network side is completed according to the RRC connection setup complete message.

Preferably, the RRC connection setup complete message receiving unit 103 obtains and saves the radio capability information of the UE from the RRC connection setup complete message.

Preferably, the device further comprises:

The UE capability querying unit 104 is configured to: after the RRC connection setup complete message receiving unit 103 receives the RRC connection setup complete message sent by the UE, initiate a UE capability query procedure to the UE, requesting the UE to perform wireless capability information of the UE; The wireless capability information reported by the UE is saved.

Preferably, the UE capability query unit 104 also sends the radio capability information of the UE to the local gateway L-GW. Preferably, the RRC connection setup message sent by the RRC connection setup message sending unit 102 further includes: radio resource configuration information of the data radio bearer DRB.

Preferably, the device further comprises:

The RRC connection reconfiguration unit 105 is configured to: after the RRC connection setup complete message receiving unit 103 receives the RRC connection setup complete message sent by the UE, activate the air interface security between the UE and the AP, and send the RRC connection reconfiguration to the UE. The message includes the radio resource configuration information of the data radio bearer DRB.

Preferably, the device on the network side may be an AP.

On the terminal side of the LTE-LAN system, referring to FIG. 7, a connection establishment apparatus according to an embodiment of the present invention includes: a connection establishment triggering unit 201, configured to send a radio resource to an access point AP by using a high layer trigger of the user equipment UE. Controlling an RRC connection setup request message, where the upper layer is a protocol layer above the RRC layer;

The RRC connection setup message receiving unit 202 is configured to receive an RRC connection setup message sent by the AP, and complete the establishment of the SRB according to the radio resource configuration information of the signaling radio bearer SRB carried in the RRC connection setup message.

Preferably, the device further comprises:

The RRC connection setup complete message sending unit 203 is configured to notify the AP that the connection establishment between the UE and the network side is completed by sending an RRC connection setup complete message to the AP.

Preferably, in the RRC connection setup complete message sent by the RRC connection setup complete message sending unit 203, It also includes wireless capability information of the UE.

Preferably, the device further comprises:

The UE capability upper unit 204 is configured to: after the RRC connection setup complete message sending unit 203 sends the RRC connection setup complete message, receive the UE capability query message sent by the AP, and report the radio capability information of the UE to the AP.

Preferably, the device further comprises:

The DRB establishing unit 205 is configured to obtain radio resource configuration information of the data radio bearer DRB from the RRC connection setup message, and establish a DRB according to the radio resource configuration information of the DRB.

Alternatively, the DRB establishing unit 205 is configured to: after the RRC connection setup complete message sending unit sends the RRC connection setup complete message, receive the RRC connection reconfiguration message sent by the AP, and obtain the radio resource configuration information of the data radio bearer DRB therefrom; The DRB is established according to the radio resource configuration information of the DRB.

Preferably, the terminal side device is a UE.

In summary, in the technical solution provided by the embodiment of the present invention, the RRC connection establishment process triggered by the RRC is triggered by the upper layer of the UE (the RRC layer may be the application layer), in which the UE can report its radio capability. . Specifically, the upper layer of the UE (above the RRC layer) triggers the RRC layer of the UE to establish an air interface connection, which may be caused by the UE starting up or starting a service. The UE sends an RRC connection setup request message to the network (AP), where the optional bearer identifier (a contention resolution for random access, which may be a random number, a MAC address, an IMSI, a device identifier, etc.), and a UE type (USIM) Information such as card UE, data card UE, etc.). The UE's RRC connection setup request message triggers its lower layer (MAC layer, physical layer) to initiate random access. In the random access process, the lower layer (MAC layer) allocates a temporary UE identifier (Temp C-RNTI). After receiving the RRC connection setup request message, the network sends an RRC connection setup message to the UE, where the radio resource configuration information of the SRB (Signaling Radio Bearer) is carried, including the RLC configuration, the logical channel configuration, and the MAC. Configuration and physical layer configuration, etc.). At the same time, the network puts the RRC connection setup request message as the contention resolution information of the random access in the MAC CE and sends it to the UE. After receiving the RRC connection setup message, the UE establishes an SRB according to the radio resource configuration information, and then sends an RRC connection setup complete message to the network, where the message may carry the MAC address of the UE, and the RRC connection establishment process succeeds. At this time, the UE upgrades the Temporary UE Identity (Temp C-RNTI) allocated by the lower layer (MAC layer) in the random access procedure to the C-RNTI of the UE. The UE may report the UE capability in the RRC connection establishment process, or may report the radio capability according to the UE capability query request of the network after the RRC connection is established. If the UE capability is reported in the RRC connection setup process, the UE may carry the UE radio capability in the RRC connection setup request or the RRC connection setup complete message. The wireless capabilities of the UE will be stored in the AP and/or L-GW. In the RRC connection setup process, the UE may also have its MAC address and/or IMSI. During the establishment of the RRC connection, the establishment of the DRB can also be completed at the same time. Or establish an RRC connection After the completion, the DRB is established. At this time, the establishment of the DRB does not depend on the service trigger. Before the DRB is established, the network may first activate the security of the air interface. It can be seen that the embodiment of the present invention solves the problem of connection establishment between the UE and the network in the LTE-LAN system, and proposes a scheme for establishing an air interface connection, so that the UE can work.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

A connection establishment method, characterized in that the method comprises:

2. The method according to claim 1, wherein the method further comprises:

3. The method according to claim 2, wherein the method further comprises:

The method according to claim 2, wherein after the AP receives the RRC connection setup complete message sent by the UE, the method further includes:

The method according to claim 3 or 4, wherein the method further comprises:

The method according to claim 5, wherein the RRC connection setup message further includes: radio resource configuration information of the data radio bearer DRB.

The method according to claim 5, wherein after the AP receives the RRC connection setup complete message sent by the UE, the method further includes:

The AP activates the security of the air interface between the UE and the AP, and sends an RRC connection reconfiguration message to the UE, where the RRC connection reconfiguration message includes radio resource configuration information of the data radio bearer DRB.

The method according to claim 2, 3 or 4, wherein the RRC connection setup complete message includes a media access control MAC address of the UE and/or an international mobile subscriber identity code IMSI.

9. A method for establishing a connection, the method comprising:

The method according to claim 9, wherein the method further comprises: The UE notifies the AP that the connection establishment between the UE and the network side is completed by sending an RRC connection setup complete message to the AP.

The method according to claim 10, wherein the RRC connection setup complete message further includes wireless capability information of the UE.

The method according to claim 10, wherein after the UE sends the RRC connection setup complete message, the method further includes:

The method according to claim 11 or 12, wherein the method further comprises:

The method according to claim 11 or 12, wherein after the UE sends an RRC connection setup complete message, the method further includes:

The method according to claim 10, 11 or 12, wherein the RRC connection setup complete message includes a media access control MAC address of the UE and/or an international mobile subscriber identity code IMSI.

16. A connection establishing device, the device comprising:

The device according to claim 16, wherein the device further comprises:

The RRC connection setup complete message receiving unit is configured to receive an RRC connection setup complete message sent by the UE, and confirm that the connection establishment between the UE and the network side is completed according to the RRC connection setup complete message.

The device according to claim 17, wherein the RRC connection setup complete message receiving unit acquires and saves radio capability information of the UE from the RRC connection setup complete message.

The device according to claim 17, wherein the device further comprises:

The UE capability querying unit is configured to: after the RRC connection setup complete message receiving unit receives the RRC connection setup complete message sent by the UE, initiate a UE capability query process to the UE, requesting the UE to report the wireless capability information of the UE; Receive and save the wireless capability information reported by the UE.

The device according to claim 18 or 19, wherein the UE capability query unit further sends the radio capability information of the UE to the local gateway L-GW.

The device according to claim 20, wherein the RRC connection setup message sent by the RRC connection setup message sending unit further includes: radio resource configuration information of the data radio bearer DRB.

22. The device according to claim 20, wherein the device further comprises:

An RRC connection reconfiguration unit, configured to: after the RRC connection setup complete message receiving unit receives the RRC connection setup complete message sent by the UE, activate the air interface security between the UE and the AP, and send an RRC connection reconfiguration message to the UE, The RRC connection reconfiguration message includes radio resource configuration information of the data radio bearer DRB.

The device according to claim 17, 18 or 19, wherein the RRC connection setup complete message received by the RRC connection setup complete message receiving unit includes: a media access control MAC address of the UE and/or international Mobile Subscriber Identity IMSI.

24. A connection establishing apparatus, the apparatus comprising:

The device according to claim 24, further comprising:

The RRC connection setup complete message sending unit is configured to notify the establishment of the connection between the AP UE and the network side by sending an RRC connection setup complete message to the AP.

The device according to claim 25, wherein the RRC connection setup complete message sent by the RRC connection setup completion message sending unit further includes radio capability information of the UE.

27. The device according to claim 25, wherein the device further comprises:

The UE capability upper unit is configured to: after the RRC connection setup complete message sending unit sends the RRC connection setup complete message, receive the UE capability query message sent by the AP, and report the radio capability information of the UE to the AP.

The device according to claim 26 or 27, wherein the device further comprises:

The DRB establishing unit is configured to obtain radio resource configuration information of the data radio bearer DRB from the RRC connection setup message, and establish a DRB according to the radio resource configuration information of the DRB.

The device according to claim 26 or 27, wherein the device further comprises:

a DRB establishing unit, configured to: after the RRC connection setup complete message sending unit sends an RRC connection setup complete message, receive an RRC connection reconfiguration message sent by the AP, and obtain a radio resource of the data radio bearer DRB Source configuration information; Establish a DRB according to the radio resource configuration information of the DRB.

The device according to claim 25, 26 or 27, wherein the RRC connection setup complete message sent by the RRC connection setup complete message sending unit to the AP includes: a media access control MAC address of the UE and/or Or International Mobile Subscriber Identity (IMSI).