CN104641679A

CN104641679A - Method, apparatus and system for wireless network distribution

Info

Publication number: CN104641679A
Application number: CN201380002659.4A
Authority: CN
Inventors: 曾清海; 戴明增; 张宏平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2015-05-20
Anticipated expiration: 2033-04-03
Also published as: CN104641679B

Abstract

The invention discloses a method, an apparatus and a system for wireless network distribution. The method for the wireless network distribution comprises following steps: an access device receives wireless network distribution requests carrying service information; if the service information of the distribution requests suits the distribution to a wireless local area network (WLAN), the access device selects the wireless local area network capable of bearing the service of the requests; and distribution indicating information is sent to a user terminal so that the user terminal performs corresponding wireless local area network access operations according to the distribution indicating information. According to the technical scheme mentioned above, the wireless network can be distributed to the WLAN through the access device at the RAN terminal, so that the user terminal can be accessed to an appropriate WLAN, and the user experience is improved.

Description

A kind of shunt method of wireless network and equipment, system

Technical field

The invention belongs to wireless communication technology field, be specifically related to a kind of shunt method and equipment, system of wireless network.

Background technology

Along with increasing rapidly of mobile broadband data, user terminal is linked into WLAN (wireless local area network) (Wireless Local Access Network, WLAN) and shunts business datum by increasing operator deployment.In order to realize the WLAN shunt of wireless network, current third generation partner program (3 ^rdgeneration Partnership Project, 3GPP) standard carries out interoperability to 3GPP network and WLAN and carried out specification, and one of them technology is exactly IP flow mobility (IP Flow Mobility, IFOM).

In IFOM technology, user terminal finds and selection function (Autonomous Network Discovery and Selection Function from automatic network, ANDSF) distributing strategy of wireless network is obtained in entity or the preconfigured information of self, the branching process of wireless network is initiated after judging voluntarily, core network entity---grouped data network gateway (the Packet Data Network Gateway of instruction 3GPP, PDN-GW) specified services is diverted to WLAN, PDN-GW shunts according to instruction.

The wireless network shunting scheme that this IFOM and ANDSF coordinates is the scheme that a kind of user terminal controls.Because ANDSF entity cannot perception 3GPP wireless access network (Radio Access Network, and the load condition of WLAN and to eat dishes without rice or wine channel quality RAN), use the program that terminal may be made to be linked on overload or the undesirable WLAN of signal quality, affect the experience of user.

Summary of the invention

The technical problem that the application mainly solves is to provide a kind of shunt method and equipment, system of wireless network, when avoiding user by user terminal requests service distributing, user terminal is linked on overload or the undesirable WLAN of signal quality, affects the experience of user.

In view of this, the application provides a kind of shunt method and equipment, system of wireless network, and the access device can held by RAN is controlled wireless network and is diverted to WLAN, makes user terminal be linked on suitable WLAN, promotes the experience of user.

The application's first aspect, provides a kind of shunt method of wireless network, comprises the steps: that access device detects the wireless network shunting request of carrying business information; If the business in described shunting request is applicable to being diverted to WLAN (wireless local area network), selects the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message; Send described shunting Indication message to user terminal, perform corresponding WLAN (wireless local area network) access operation to make user terminal according to described shunting Indication message.

In conjunction with first aspect, in the first possible implementation of first aspect: described shunting Indication message comprises business information and the shunting instruction of request shunting, described shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible: if described shunting instruction comprises successfully shunt service identification, described shunting Indication message also comprises the WLAN (wireless local area network) information of carrying shunting.

In conjunction with the implementation that the second of first aspect is possible, in the third possible implementation of first aspect: the WLAN (wireless local area network) information of described carrying shunting comprises at least one in the basic service set identification of WLAN (wireless local area network) of carrying shunting, service set, the media access control address of access point, channel frequency.

In conjunction with the first possible implementation of first aspect, in the 4th kind of possible implementation of first aspect: if described shunting instruction comprises hang-up service identification, then described to user terminal send shunting Indication message step after, also comprise: described access device continues to attempt finding to have the WLAN (wireless local area network) carrying described hang-up professional ability, till the message finding the WLAN (wireless local area network) having and carry described hang-up professional ability or the wireless network receiving described hang-up business shunting to cancel.

In conjunction with first aspect, in the 5th kind of possible implementation of first aspect: described to after user terminal sends the step of shunting Indication message, also comprise: receive the WLAN (wireless local area network) access results messages that described user terminal or wireless local network connecting point return.

In conjunction with the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation of first aspect: after the step of the WLAN (wireless local area network) access results messages that the described user terminal of described reception or wireless local network connecting point return, also comprise: if carry evolved packet system bearing identification in described access results messages, then initiate the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

In conjunction with the first of first aspect or first aspect to the 6th kind of any one possible execution mode, in the 7th kind of possible implementation of first aspect: access device detects that the step of the wireless network shunting request of carrying business information comprises: access device detects that the wireless network carrying business information sent by user terminal or equipment of the core network shunts request; Or access device detects the wireless network shunting request of carrying business information self initiated.

In conjunction with the first of first aspect or first aspect to the 6th kind of any one possible execution mode, in the 8th kind of possible implementation of first aspect: described access device is any one in the access point of radio communication base station, network controller or WLAN (wireless local area network).

In conjunction with the first of first aspect or first aspect to the 6th kind of any one possible execution mode, in the 9th kind of possible implementation of first aspect: if the business in described described request is applicable to being diverted to WLAN (wireless local area network), before selecting that there is the step of the WLAN (wireless local area network) carrying described professional ability, also comprise: described access device according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN (wireless local area network).

In conjunction with the first of first aspect or first aspect to the 6th kind of any one possible execution mode, in the tenth kind of possible implementation of first aspect: described business information comprises at least one in the five-tuple of transmission control protocol/User Datagram Protocol IP header, traffic flow template, application identities.

Second aspect, provides a kind of shunt method of wireless network, comprises the following steps: user terminal sends the wireless network shunting request of carrying business information to access device; Receive the shunting Indication message that described access device returns; Corresponding triage operator is performed according to described shunting Indication message.

In conjunction with second aspect, in the first possible implementation of second aspect: described shunting Indication message comprises business information and the shunting instruction of request shunting, described shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

In conjunction with the first possible implementation of second aspect, in the implementation that the second of second aspect is possible: if described shunting instruction comprises successfully shunt service identification, described shunting Indication message also comprises the WLAN (wireless local area network) information of carrying shunting; The described step performing corresponding triage operator according to described shunting Indication message comprises: described user terminal is linked into the WLAN (wireless local area network) of described carrying shunting by access point according to described WLAN (wireless local area network) shunting Indication message; Access results messages is sent to described access device.

In conjunction with the implementation that the second of second aspect is possible, in the third possible implementation of second aspect: if the business that wireless network is described request shunting establishes evolved packet system carrying, the described step to described access device transmission access results messages comprises: send the access results messages comprising and delete described evolved packet system carrying instruction to described access device, described access results messages comprises evolved packet system bearing identification.

The third aspect, provides a kind of access device, comprises detection module, selects module and sending module, wherein: described detection module is for detecting the wireless network shunting request of carrying business information; When the business of described selection module in described shunting request is applicable to being diverted to WLAN (wireless local area network), select the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message, and described shunting Indication message is exported to described sending module; Described sending module is used for sending described shunting Indication message to user terminal, performs corresponding WLAN (wireless local area network) access operation to make user terminal according to described shunting Indication message.

In conjunction with the third aspect, in the first possible implementation of the third aspect: described access device also comprises receiver module, for receiving the WLAN (wireless local area network) access results messages that described user terminal or wireless local network connecting point return.

In conjunction with the first possible implementation of the third aspect, in the implementation that the second of the third aspect is possible: described access device also comprises removing module, for when carrying evolved packet system bearing identification in described access results messages, initiate the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

In conjunction with the first any one possible implementation to the second of the third aspect or the third aspect, in the third possible implementation of the third aspect: described access device is any one in the access point of radio communication base station, network controller or WLAN (wireless local area network).

In conjunction with the first any one possible implementation to the second of the third aspect or the third aspect, in the 4th kind of possible implementation of the third aspect: described access device also comprises judge module, for according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN (wireless local area network).

Fourth aspect, provides a kind of user terminal, comprises request module, receiver module and control module, wherein: described request module is used for sending the wireless network shunting request of carrying business information to access device; The shunting Indication message that described receiver module returns for receiving described access device, and described shunting Indication message is exported to described control module; Described control module is used for performing corresponding triage operator according to described shunting Indication message.

In conjunction with fourth aspect, in the first possible implementation of fourth aspect: described shunting Indication message comprises business information and the shunting instruction of request shunting, described shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

In conjunction with the first possible implementation of fourth aspect, in the implementation that the second of fourth aspect is possible: if described shunting instruction comprises successfully shunt service identification, described shunting Indication message also comprises the WLAN (wireless local area network) information of carrying shunting; Described control module is used for the WLAN (wireless local area network) being linked into described carrying shunting according to described WLAN (wireless local area network) shunting Indication message by access point, and sends access results messages to described access device.

In conjunction with the implementation that the second of fourth aspect is possible, in the third possible implementation of fourth aspect: if the business that wireless network is described request shunting establishes evolved packet system carrying, described control module is used for sending to described access device the access results messages comprising and delete described evolved packet system carrying instruction, and described access results messages comprises evolved packet system bearing identification.

5th aspect, a kind of access device is provided, comprise processor and the receiver be electrically connected with described processor respectively and transmitter, wherein: described wireless network shunting request, for receiving the wireless network shunting request of carrying business information, is exported to described processor by described receiver;

Described processor according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN (wireless local area network), when the business in described request is applicable to being diverted to WLAN (wireless local area network), select the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message, described shunting Indication message is exported to described transmitter; Described transmitter is used for described shunting Indication message to send to user terminal.

Technique scheme, by sending the access device that the WLAN shunt request of carrying business information is held to RAN, being held by RAN and controlling wireless network and be diverted on WLAN.Because RAN end more easily obtains the load condition of RAN and WLAN and the information such as channel quality of eating dishes without rice or wine, thus suitable WLAN can be selected according to the business information in these information and shunting request, user terminal is linked into and can carries on the WLAN of request shunting business, effectively promote the experience of user radio network.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of a network system execution mode of the shunt method application of the application's wireless network;

Fig. 2 is the flow chart of a shunt method execution mode of the application's wireless network;

Fig. 3 is the flow chart of another execution mode of shunt method of the application's wireless network;

Fig. 4 is that the application is by the shunt method implementation procedure schematic diagram of user terminal to the wireless network of the access device initiation shunting request of wireless access network;

Fig. 5 is that the application is by the shunt method implementation procedure schematic diagram of equipment of the core network to the wireless network of the access device initiation shunting request of wireless access network;

Fig. 6 is the flow chart of another execution mode of shunt method of the application's wireless network;

Fig. 7 is the structural representation of the application's access device execution mode;

Fig. 8 is the structural representation of another execution mode of the application's access device;

Fig. 9 is the structural representation of the application's user terminal execution mode;

Figure 10 is the structural representation that the application's access device also has an execution mode;

Figure 11 is the structural representation of another execution mode of the application's user terminal.

Embodiment

Consult Fig. 1, Fig. 1 is the schematic diagram of a network system execution mode of the shunt method application of the application's wireless network, network system comprises user terminal 100, access device 200 and equipment of the core network 300, equipment of the core network 300 is Internet Service Provider and Access Network, or the bridge that Access Network and other Access Networks link together, be the request of data for management and control core net end and process, network is routed on different networks.Core net is the network portion except Access Network and the local network of users.Equipment of the core network 300 can comprise grouped data network gateway, strategy and billing function unit, switch etc.

Access device 200 is for long-range accesses network resource, and in the application's execution mode, access device 200 can be access point of radio communication base station, network controller or WLAN (wireless local area network) etc.Realize between access device 200 with equipment of the core network 300 communicating, changed or policy control by signal, access one or more wireless or cable network.An access device 200, in conjunction with multiple radio robot, is comprised voice and is linked to the data of a carrier or service provider's POP by single shared access.Access device 200 can pass through radio-frequency technique, according to the data distribution request of user terminal 100, realizes being become by wireless network deployment multiple WLAN to shunt business datum.Make user terminal 100 by can transfer of data be completed between 3GPP Cellular Networks and/or different WLAN.

User terminal 100 can be comprise the terminal equipments such as mobile phone, palmtop PC, notebook, PC, user terminal 100 is when hope is by service distributing, the shunting of wireless network is asked, to realize by wireless network transmissions data and data access etc. to access device 200.

The application solves prior art to cause user terminal may be linked into technical problem on overload or the undesirable WLAN of signal quality by the method that user terminal controls wireless network shunting, a kind of shunt method and equipment, system of wireless network are provided, the access device can held by RAN is controlled wireless network and is diverted to WLAN, make user terminal be linked on suitable WLAN, promote the experience of user.

Refer to Fig. 2, Fig. 2 is the flow chart of a shunt method execution mode of the application's wireless network, and the shunt method of present embodiment wireless network is described with the angle of above-mentioned access device, and the shunt method of present embodiment wireless network comprises:

Step S101: access device detects the wireless network shunting request of carrying business information.

If user terminal wish by service distributing to WLAN on time, carry business information and send wireless network shunting to the access device of wireless access network end and ask.Wireless network shunting request sends in the form of a message, the business information of request shunting can be comprised in this request message, such as transmission control protocol/User Datagram Protocol (Transmission Control Protocol/User Datagram Protocol, TCP/UDP) five-tuple, traffic flow template (Traffic Flow Template, TFT), application identities etc. of IP header.Five-tuple refers to by source IP address, source port, object IP address, destination interface, and a set of transport layer protocol number these five amount compositions.Such as: 192.168.1.1,0000, TCP, 21.14.88.76,80 just constitute a five-tuple.

User terminal can judge whether to need by certain service distributing to WLAN by self prewired distributing strategy or from the distributing strategy that ANDSF entity obtains, if needed, sends out wireless network shunting request message.If the business information of carrying in shunting request message is TFT, then this message need in evolved packet system (Evolved Packet System, EPS) loading establishing process user terminal obtain network to TFT after just send out this message.The business information that this message comprises can comprise many.This message also can reuse existing message, such as radio resource control (Radio Resource Control, RRC) connection setup complete message, represents request WLAN shunt by increasing parameter.

In another implementation, shunting request can be sent by equipment of the core network to access device.As equipment of the core network such as grouped data network gateway (Packet Data Network Gateway, PDN-GW) or strategy and billing function unit (Policy and Charging Rules Function, PCRF) receiving as after new business sets up the request of EPS carrying or amendment EPS carrying, equipment of the core network initiation corresponding EPS carrying set up/amendment before or corresponding EPS carry set up/amendment after send wireless network to access device and shunt request message.Shunting request message comprises business information, and the detailed description of business information sends the associated description in shunting request message see above-mentioned user terminal.The business information that this message comprises also can comprise many.This message also can reuse existing message, and such as request message is set up in EPS carrying, represents request WLAN shunt by increasing parameter.

After access device detects these wireless networks shunting request, judge whether the business in request is applicable to being diverted to WLAN according to wireless network shunting request, when the business in shunting request is applicable to being diverted to WLAN, perform step S102, otherwise, do not respond shunting and ask.

Step S102: if the business in shunting request is applicable to being diverted to WLAN (wireless local area network), select the WLAN (wireless local area network) of the professional ability had in carrying request.

The access device of wireless access network end after the wireless network shunting request receiving user terminal, the distributing strategy prewired according to self and/or from the distributing strategy that ANDSF entity obtains judge shunting ask corresponding business whether can be divided to WLAN.If of course, then select the network that is applicable to, namely can carry the WLAN of the business in shunting request.

In order to select the WLAN be applicable to, on the one hand, WLAN quality, load etc. that access device can scan by user terminal to send up, or 3GPP Network measurement information judge user terminal under the covering of which (a bit) WLAN, eat dishes without rice or wine quality and the load of which WLAN be more suitable for this service distributing to go over.

On the other hand, access device also by obtaining user terminal alternately under the covering of which (a bit) WLAN and the information such as quality and load of eating dishes without rice or wine of these WLAN with WLAN, can select suitable WLAN.If WLAN is connected to core net by 3GPP RAN, access device also will consider the load of 3GPP RAN, the load condition particularly between 3GPP RAN and core net backhaul, selects suitable WLAN.

Step S103: send shunting Indication message to user terminal, performs corresponding WLAN (wireless local area network) access operation to make user terminal according to shunting Indication message.

Access device selects suitable WLAN rear line terminal to send WLAN shunt Indication message, this shunting Indication message comprises business information and the shunting instruction of request shunting, and shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

If the shunting instruction comprised in shunting Indication message is successfully shunt service identification, then shunt the WLAN information also comprising carrying shunting in Indication message.WLAN information is specify basic service set identification (the Basic Service Set Identifier of WLAN, or service set (Service Set Identifier BSSID), or access point (Access Point SSID), AP) M AC (Media Access Control, MAC) address or channel frequency etc.

The business information of the request shunting in shunting Indication message can be assign to be diverted to the business information of WLAN, the five-tuple of the TCP/UDP IP header of such as corresponding business, TFT, application identities or message transaction mark etc.If comprise the information of multiple business in the wireless network shunting request that in step S101, access device receives, then shunting each business information in Indication message can be the sequence number of corresponding business information in shunting request message.

If access device is according to strategy refusal to the service distributing in shunting request, then the shunting instruction of the WLAN shunt Indication message of user terminal reception is refusal service distributing mark.This refusal service distributing mark also can by specific message name implicit expression instruction.

If access device is agreed to shunt the business in asking to WLAN according to strategy, but temporarily can not find suitable WLAN, then the shunting instruction in the WLAN shunt Indication message of user terminal reception is for hanging up service identification.This hang-up service identification also can by specific message name implicit expression instruction.

To in wireless network shunting request, each wishes the business being divided to WLAN, and described shunting instruction can be { success, refusal, one of hang up three enumerated values, also can identify with two bits, such as 00,01,10 identify respectively successfully, refuse and hang up.

Once access device sends the WLAN shunt Indication message comprising and hang up service identification to user terminal, access device can continue to attempt finding to have the WLAN that professional ability is hung up in carrying, till the message finding the WLAN having and carry and hang up professional ability or the wireless network receiving hang-up business shunting to cancel.Once find the WLAN having and carry described hang-up professional ability, just send WLAN shunt Indication message to user terminal.

Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, if user terminal does not still receive the order being diverted to WLAN when corresponding service ending, then user terminal sends the WLAN shunt cancellation message comprising business information to access device, continues to attempt this service distributing to WLAN to avoid access device.Another kind of way: access device sends the WLAN shunt Indication message comprising and hang up service identification to user terminal after, access device does not continue to attempt finding to have the WLAN that professional ability is hung up in carrying; Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, user terminal periodically sends WLAN shunt request message to access device before corresponding service ending, and access device receives after WLAN shunt request message by step S102 process.

The WLAN shunt Indication message that user terminal returns according to access device, performs corresponding WLAN access operation.After performing WLAN access operation, send to access device and comprise the message that WLAN accesses result, to notify whether access device WLAN accesses successfully.When wireless network shunting request is sent by equipment of the core network, the WLAN of correspondence is also accessed results messages and also sends to equipment of the core network, to notify whether equipment of the core network WLAN accesses successfully by access device.

Once successfully by a service distributing to WLAN, independent EPS carrying is established if 3GPP cellular network is this business, then access device may initiate (or user terminal initiation) deleting load-bearing process, deletes corresponding EPS carrying or its part.If will therefore initiate deleting load-bearing process, contain in the WLAN access results messages successfully shunting service identification and must comprise EPS bearing identification (Bearer ID).If the 3GPP network that the WLAN participating in shunting is connected to user terminal does not have data surface anchor point, then delete corresponding whole piece EPS and carry.If the 3GPP network that the WLAN participating in shunting is connected to user terminal has data surface anchor point, delete the part of below described data surface anchor point.Such as, if the data participating in shunting WLAN are linked into the Internet by the base station of wireless access network, then only delete the part of eating dishes without rice or wine of corresponding carrying, namely EPS is carried on the part between base station and user terminal.Issue at access device in the WLAN access results messages of equipment of the core network and comprise " WLAN offload " cause value.

It should be noted that, also have in a kind of implementation, the access device oneself that this WLAN shunt based on business also can be held by RAN is initiated, such as when RAN lateral load is overweight, RAN end will carry out WLAN shunt judgement, find out the business being suitable for WLAN shunt, the wireless network shunting request of holding the access device of self to send to carry these business information by RAN, initiates wireless network branching process.After access device detects the wireless network shunting request himself initiated, by selecting the user terminal be applicable to, applicable business and applicable WLAN, the shunting Indication message generating corresponding business sends to respective user terminal, to indicate respective user terminal by corresponding service distributing in corresponding WLAN.

By the elaboration of above-mentioned execution mode, be appreciated that the access device that the application passes through to send the WLAN shunt request of carrying business information and holds to RAN, held by RAN and control wireless network and be diverted on WLAN.Because RAN end more easily obtains the load condition of RAN and WLAN and the information such as channel quality of eating dishes without rice or wine, thus suitable WLAN can be selected according to the business information in these information and shunting request, user terminal is linked into and can carries on the WLAN of request shunting business, effectively promote the experience of user radio network.

Refer to Fig. 3, Fig. 3 is the flow chart of another execution mode of shunt method of the application's wireless network, the shunt method of present embodiment wireless network is described with the angle of above-mentioned user terminal, and the shunt method of the wireless network of present embodiment comprises:

Step S201: user terminal sends the wireless network shunting request of carrying business information to access device.

If user terminal wish by service distributing to WLAN on time, carry business information to access device send wireless network shunting ask.Wireless network shunting request sends in the form of a message, can comprise the business information of request shunting, the five-tuple, TFT, application identities etc. of such as TCP/UDP IP header in this request message.Five-tuple refers to by source IP address, source port, object IP address, destination interface, and a set of transport layer protocol number these five amount compositions.Such as: 192.168.1.1,0000, TCP, 21.14.88.76,80 just constitute a five-tuple.

User terminal can judge whether to need by certain service distributing to WLAN by self prewired distributing strategy or from the distributing strategy that ANDSF entity obtains, if needed, sends out wireless network shunting request message.If the business information of carrying in shunting request message is TFT, then this message need in EPS loading establishing process user terminal obtain network to TFT after just send out this message.The business information that this message comprises can comprise many.This message also can reuse existing message, such as RRC connection setup complete message, represents request WLAN shunt by increasing parameter.

Step S202: receive the shunting Indication message that access device returns.

Access device receive user terminal wireless network shunting request after, the distributing strategy prewired according to self or from the distributing strategy that ANDSF entity obtains judge shunting ask corresponding business whether can be divided to WLAN.Of course, then select the network be applicable to namely can carry the WLAN of business in shunting request if.After finding applicable network, access device sends shunting Indication message to user terminal.

User terminal receives the shunting Indication message that access device returns, and shunting Indication message comprises business information and the shunting instruction of request shunting, and shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

If the shunting instruction comprised in shunting Indication message is successfully shunt service identification, then shunt the WLAN information also comprising carrying shunting in Indication message.WLAN information is specify BSSID or SSID of WLAN or the MAC Address of AP or channel frequency etc.

Particular content and the form of shunting Indication message see the associated description of Fig. 2 execution mode, can not repeat them here.

Step S203: perform corresponding triage operator according to shunting Indication message.

The WLAN shunt Indication message that user terminal returns according to access device, performs corresponding WLAN access operation.After performing WLAN access operation, send to access device and comprise WLAN access results messages.To notify whether access device WLAN accesses successfully.When wireless network shunting request is sent by equipment of the core network, the WLAN of correspondence is also accessed results messages and also sends to equipment of the core network, to notify whether equipment of the core network WLAN accesses successfully by access device.

Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, if user terminal does not still receive the order being diverted to WLAN when corresponding service ending, then user terminal sends the WLAN shunt cancellation message comprising business information to access device, continues to attempt this service distributing to WLAN to avoid access device.Another kind of way: access device sends the WLAN shunt Indication message comprising and hang up service identification to user terminal after, access device does not continue to attempt finding to have the WLAN that professional ability is hung up in carrying; Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, user terminal periodically sends WLAN shunt request message to access device before corresponding service ending.

Once successfully by a service distributing to WLAN, independent EPS carrying is established if 3GPP cellular network is this business, then user terminal may initiate (certainly also initiating by access device) deleting load-bearing process, deletes corresponding EPS carrying or its part.If will therefore initiate deleting load-bearing process, contain in the WLAN access results messages successfully shunting service identification and must comprise EPS bearing identification (Bearer ID).If the 3GPP network that the WLAN participating in shunting is connected to user terminal does not have data surface anchor point, then delete corresponding whole piece EPS and carry.If the 3GPP network that the WLAN participating in shunting is connected to user terminal has data surface anchor point, delete the part of below described data surface anchor point.Such as, if the data participating in shunting WLAN are linked into the Internet by the base station of wireless access network, then only delete the part of eating dishes without rice or wine of corresponding carrying, namely EPS is carried on the part between base station and user terminal.Issue at access device in the WLAN access results messages of equipment of the core network and comprise " WLAN offload " cause value.

The shunt method of the wireless network of the application, shunting request can be initiated to the access device of wireless access network by user terminal or equipment of the core network, below with user terminal in the shunt method implementation procedure of wireless network, access device and equipment of the core network perform mutual mutual realization can see the schematic diagram of Fig. 4 and Fig. 5, wherein, Fig. 4 is by the shunt method implementation procedure schematic diagram of user terminal to the wireless network of the access device initiation shunting request of wireless access network, Fig. 5 is by the shunt method implementation procedure schematic diagram of equipment of the core network to the wireless network of the access device initiation shunting request of wireless access network.

Refer to Fig. 4, when by access device from user terminal to wireless access network initiate wireless network shunt request time, the shunt method of wireless network comprises the following steps:

Step one: user terminal sends to the access device of wireless access network the WLAN shunt request message comprising business information;

Step 2: wireless access network is selected suitable wlan network and sent WLAN shunt Indication message to terminal;

Step 3: the rear transmission to wireless access network that user terminal accesses in the wlan network of specifying comprises the WLAN access results messages that WLAN accesses success or not instruction.

The detailed implementation of each step see the elaboration of Fig. 2 and Fig. 3 illustrated embodiment, can not repeat them here above.

Refer to Fig. 5, when by access device from equipment of the core network to wireless access network initiate wireless network shunt request time, the shunt method of wireless network comprises the following steps:

Step one: equipment of the core network sends to the access device of wireless access network the WLAN shunt request message comprising business information;

Step 2: the access device of wireless access network is selected suitable wlan network and sent WLAN shunt Indication message to user terminal;

Step 3: the rear access device to wireless access network that user terminal accesses in the wlan network of specifying sends and comprises the WLAN access results messages that WLAN accesses success or not instruction.

Step 4: the access device of wireless access network sends the WLAN shunt results messages comprising WLAN shunt success or not instruction to equipment of the core network.

Above each step realize the associated description that details refers to above-mentioned Fig. 2 and Fig. 3 illustrated embodiment, do not repeat them here.

What deserves to be explained is, the shunt method of the application's wireless network also has a kind of implementation, and RAN holds access device according to the distributing strategy of whole user class, the load condition of 3GPP RAN and WLAN and channel quality etc. of eating dishes without rice or wine, and determines whether to need WLAN shunt.If needed, then issue WLAN shunt Indication message to user terminal.This Indication message comprises the service distributing strategy of one or more wlan network mark and this user terminal.According to the service distributing strategy that access device issues, user terminal judges whether the business that the business of carrying out transmitting maybe will be initiated is applicable to being diverted to WLAN.If be applicable to, then by WLAN selected in corresponding service distributing to appointment or list.In this way, service distributing process is initiated according to the load condition of 3GPP RAN and WLAN and channel quality of eating dishes without rice or wine etc. by access device, issue the WLAN shunt instruction comprising service distributing strategy to user terminal simultaneously, control WLAN shunt by user terminal itself, can avoid user terminal to be linked into the technical problem on overload or the undesirable WLAN of signal quality.Meanwhile, user terminal, when there being service needed to shunt, not needing to send business information to access device, directly decides which service needed by user terminal self and shunt, and be diverted on which WLAN, make business WLAN shunt process more efficient and convenient.

Refer to Fig. 6, the shunt method of the application's wireless network also has a kind of flow chart of execution mode, and the shunt method of wireless network comprises:

Step S301: start;

Whether step S302: the service distributing strategy that user terminal issues according to access device, judge to need the business of shunting to be applicable to being diverted to WLAN;

RAN holds access device according to the distributing strategy of whole user class, the load condition of 3GPP RAN and WLAN and channel quality etc. of eating dishes without rice or wine, and determines whether to need WLAN shunt.If needed, then issue WLAN shunt Indication message to user terminal.This Indication message comprises the service distributing strategy of one or more wlan network mark and this user terminal.

If user terminal wish by service distributing to WLAN on time, according to the service distributing strategy that access device issues, judge needs shunt business whether be applicable to being diverted on WLAN, if desired the business shunted is applicable to being diverted on WLAN, then carry out step S303, otherwise, carry out step S305.

Step S303: according to service distributing strategy and the business information needing shunting, find the WLAN that can carry the business needing shunting;

When needing the business of shunting to be applicable to being diverted on WLAN, the service distributing strategy that the business information shunted as required and access device issue, selects to carry the WLAN needing shunting business.

Step S304: will the service access of shunting be needed on the WLAN of correspondence;

After finding the WLAN that can carry and need shunting business, will shunting service access be needed on the WLAN of correspondence by access point, the WLAN shunt process of finishing service.Access device to wireless access network sends and comprises the WLAN access results messages that WLAN accesses success or not instruction.

If the access device of wireless access network no longer needs user terminal to carry out WLAN shunt (being included in before receiving this WLAN access results messages), then send WLAN shunt and cancel message to user terminal.

Step S305: business is not shunted.

Refer to Fig. 7, Fig. 7 is the structural representation of the application's access device execution mode, and access device 200 comprises detection module 11, selects module 12 and sending module 13, wherein:

Detection module 11 is for detecting the wireless network shunting request of carrying business information;

If user terminal wish by service distributing to WLAN on time, carry business information and send wireless network shunting to the access device of wireless access network end and ask.Wireless network shunting request sends in the form of a message, can comprise the business information of request shunting, the five-tuple, TFT, application identities etc. of such as TCP/UDPIP header in this request message.Five-tuple refers to by source IP address, source port, object IP address, destination interface, and a set of transport layer protocol number these five amount compositions.Such as: 192.168.1.1,0000, TCP, 21.14.88.76,80 just constitute a five-tuple.

User terminal can judge whether to need by certain service distributing to WLAN by self prewired distributing strategy or from the distributing strategy that ANDSF entity obtains, if needed, sends out wireless network shunting request message.If the business information of carrying in shunting request message is TFT, then this message need in EPS loading establishing process user terminal obtain network to TFT after just send out this message.The business information that this message comprises can comprise many.This message also can reuse existing message, such as radio resource control RRC connection setup complete message, represents request WLAN shunt by increasing parameter.

In addition, shunting request can be sent by equipment of the core network to access device.When equipment of the core network such as PDN-GW or PCRF is receiving as after new business sets up the request of EPS carrying or amendment EPS carrying, equipment of the core network initiation corresponding EPS carrying set up/amendment before or corresponding EPS carry set up/amendment after send wireless network to access device and shunt request message.Shunting request message comprises business information, and the detailed description of business information sends the associated description in shunting request message see above-mentioned user terminal.The business information that this message comprises also can comprise many.This message also can reuse existing message, and such as request message is set up in EPS carrying, represents request WLAN shunt by increasing parameter.

A kind of mode is in addition, WLAN shunt process is initiated by access device itself, such as when RAN lateral load is overweight, RAN end will carry out WLAN shunt judgement, find out the business being suitable for WLAN shunt, hold the access device of self to send to carry the wireless network shunting request of these business information by RAN, initiate wireless network branching process.

Based on above implementation, detection module 11 can detect that the wireless network carrying business information sent by user terminal or equipment of the core network shunts request; Or the wireless network shunting request of carrying business information self initiated detected.

When selecting the business of module 12 in the request of shunting to be applicable to being diverted to WLAN, select the WLAN of the professional ability had in carrying request, generate corresponding shunting Indication message, and shunting Indication message is exported to sending module 13;

Detection module 11 detect wireless network shunting request after, the distributing strategy prewired according to self and/or from the distributing strategy that ANDSF entity obtains judge shunting ask corresponding business whether can be divided to WLAN.If of course, then select the network that is applicable to, namely can carry the WLAN of the business in shunting request.

In order to select the WLAN be applicable to, on the one hand, select module 12 the WLAN quality, load etc. that can scan by user terminal to send up, or 3GPP Network measurement information judge user terminal under the covering of which (a bit) WLAN, eat dishes without rice or wine quality and the load of which WLAN be more suitable for this service distributing to go over.

On the other hand, module 12 is selected also by obtaining user terminal alternately under the covering of which (a bit) WLAN and the information such as quality and load of eating dishes without rice or wine of these WLAN with WLAN, suitable WLAN can be selected.If WLAN is connected to core net by 3GPP RAN, selects module 12 also will consider the load of 3GPP RAN, the load condition particularly between 3GPP RAN and core net backhaul, select suitable WLAN.

After choosing suitable WLAN, generate the shunting Indication message of corresponding service distributing, and this shunting Indication message is exported to sending module 13.

Sending module 13, for sending shunting Indication message to user terminal, performs corresponding WLAN access operation to make user terminal according to shunting Indication message;

Sending module 13 sends WLAN shunt Indication message to user terminal, this shunting Indication message comprises business information and the shunting instruction of request shunting, and shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

The business information of the request shunting in shunting Indication message can be assign to be diverted to the business information of WLAN, the five-tuple of the TCP/UDP IP header of such as corresponding business, TFT, application identities or message transaction mark etc.If comprise the information of multiple business in the wireless network shunting request that described detection module 11 detects, then shunting each business information in Indication message can be the sequence number of corresponding business information in shunting request message.

If access device is agreed to shunt the business in asking to WLAN according to strategy, but described selection module 12 temporarily can not find suitable WLAN, then the shunting instruction in the WLAN shunt Indication message of user terminal reception is for hanging up service identification.This hang-up service identification also can by specific message name implicit expression instruction.

Once sending module 13 sends the WLAN shunt Indication message comprising and hang up service identification to user terminal, select module 12 can continue trial and find the WLAN with carrying hang-up professional ability, till the message finding the WLAN with carrying hang-up professional ability or the wireless network shunting receiving hang-up business to cancel.Once select module 12 to find the WLAN having and carry described hang-up professional ability, just send WLAN shunt Indication message by sending module 13 to user terminal.

Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, if user terminal does not still receive the order being diverted to WLAN when corresponding service ending, then user terminal sends the WLAN shunt cancellation message comprising business information to access device, continues to attempt this service distributing to WLAN to avoid access device.Another kind of way: sending module 13 sends the WLAN shunt Indication message comprising and hang up service identification to user terminal after, selects module 12 not continue to attempt finding to have the WLAN that professional ability is hung up in carrying; Once user terminal receives the WLAN shunt Indication message comprising and hang up service identification, user terminal periodically sends WLAN shunt request message, as long as process by above-mentioned mode after detection module 11 detects WLAN shunt request message to access device before corresponding service ending.

Refer to Fig. 8, Fig. 8 is the structural representation of another execution mode of the application's access device, and access device comprises detection module 11, selects module 12, sending module 13, judge module 14, receiver module 15 and removing module 16, wherein:

After detection module 11 detects the wireless network shunting request of carrying business information, the wireless network request of shunting is sent to judge module 14, judge module 14 for according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN.After the business in request that determines is applicable to being diverted to WLAN, notice selects module 12 to carry out the selection of WLAN.

User terminal sends to access device and comprises the message that WLAN accesses result, to notify whether access device WLAN accesses successfully after performing WLAN access operation according to shunting Indication message.

Receiver module 15 accesses results messages for the WLAN receiving user terminal or WLAN access point and return.

When wireless network shunting request is sent by equipment of the core network, after receiver module 15 receives access results messages, also by sending module 13, the WLAN of correspondence is accessed results messages and also send to equipment of the core network, to notify whether equipment of the core network WLAN accesses successfully.

Once successfully by a service distributing to WLAN, independent EPS carrying is established if 3GPP cellular network is this business, then access device may initiate (or user terminal initiation) deleting load-bearing process, deletes corresponding EPS carrying or its part.If will therefore initiate deleting load-bearing process, then must comprise EPS bearing identification (Bearer ID) containing in the WLAN access results messages successfully shunting service identification of receiver module 15 reception.

Removing module 16, for when carrying evolved packet system bearing identification in access results messages, initiates the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

If carry evolved packet system bearing identification in the access results messages that receiver module 15 receives, removing module 16 initiates the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

If the 3GPP network that the WLAN participating in shunting is connected to user terminal does not have data surface anchor point, removing module 16 is deleted corresponding whole piece EPS and is carried.If the 3GPP network that the WLAN participating in shunting is connected to user terminal has data surface anchor point, removing module 16 deletes the part of below described data surface anchor point.Such as, if the data participating in shunting WLAN are linked into the Internet by the base station of wireless access network, then only delete the part of eating dishes without rice or wine of corresponding carrying, namely EPS is carried on the part between base station and user terminal.

Refer to Fig. 9, Fig. 9 is the structural representation of the application's user terminal execution mode, and user terminal 100 comprises request module 21, receiver module 22 and control module 23, wherein:

Request module 21 is for sending the wireless network shunting request of carrying business information to access device;

If user terminal wish by service distributing to WLAN on time, by request module 21 carry business information to access device send wireless network shunting ask.Wireless network shunting request sends in the form of a message, can comprise the business information of request shunting, the five-tuple, TFT, application identities etc. of such as TCP/UDPIP header in this request message.Five-tuple refers to by source IP address, source port, object IP address, destination interface, and a set of transport layer protocol number these five amount compositions.Such as: 192.168.1.1,0000, TCP, 21.14.88.76,80 just constitute a five-tuple.

User terminal can judge whether to need by certain service distributing to WLAN by self prewired distributing strategy or from the distributing strategy that ANDSF entity obtains, if needed, sends wireless network shunting request message by request module 21.If the business information of carrying in shunting request message is TFT, then this message need in EPS loading establishing process user terminal obtain network to TFT after just send out this message.The business information that this message comprises can comprise many.This message also can reuse existing message, such as RRC connection setup complete message, represents request WLAN shunt by increasing parameter.

The shunting Indication message that receiver module 22 returns for receiving access device, and shunting Indication message is exported to control module 23;

Receiver module 22 receives the shunting Indication message that access device returns, and shunting Indication message comprises business information and the shunting instruction of request shunting, and shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

Control module 23 is for performing corresponding triage operator according to shunting Indication message.

Control module 23 carries out triage operator according to shunting Indication message, when the shunting instruction comprised in shunting Indication message is when successfully shunting service identification, control module 23 is linked into the WLAN of carrying shunting by access point according to WLAN shunt Indication message, and send access results messages to access device.

When successfully by after on service distributing to WLAN, if the business that wireless network is request shunting establishes EPS carrying, control module 23 sends to comprise to access device deletes the access results messages that EPS carries instruction, and access results messages comprises evolved packet system bearing identification.

Refer to Figure 10, Figure 10 is the structural representation that the application's access device also has an execution mode, and the access device 200 of present embodiment, comprising: processor 31, receiver 32, transmitter 33; Wherein,

Receiver 32, for receiving the wireless network shunting request of carrying business information, exports to processor 31 by the wireless network request of shunting;

Processor 31, when being applicable to being diverted to WLAN (wireless local area network) for the business in described shunting request, select the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message, and described shunting Indication message is exported to transmitter 33;

Transmitter 33, for sending described shunting Indication message to user terminal, performs corresponding WLAN (wireless local area network) access operation to make user terminal according to described shunting Indication message.

Further, this access device 200 can also comprise random access memory 34, read-only memory 35, bus 36 and network interface unit 37.Wherein, processor 31 couples receiver 32, transmitter 33, random access memory 34, read-only memory 35 and network interface unit 37 respectively by bus 36.

In the present embodiment, when needs run access device 200, by being solidificated in the basic input output system in read-only memory 35 or the bootloader guidance system in embedded system starts, access device 200 is guided to enter normal operating condition.After network traffics treatment facility enters normal operating condition, run application and operating system in random access memory 34, send data from network reception data or to network, make:

Receiver 32 receives the wireless network shunting request of carrying business information, and processor 31 is exported in the wireless network request of shunting;

When the business of processor 31 in described shunting request is applicable to being diverted to WLAN (wireless local area network), selects the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message, and described shunting Indication message is exported to transmitter 33;

Wherein, this processor 31 can according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in asking is applicable to being diverted to WLAN, when the business in asking is applicable to being diverted to WLAN, select the WLAN of the professional ability had in carrying described request, generate corresponding shunting Indication message, shunting Indication message is exported to transmitter 33.

In present embodiment, processor 31 may be a central processor CPU, or specific integrated circuit ASIC(Application Specific Integrated Circuit), or be configured to the one or more integrated circuits implementing the application's execution mode.

When user terminal according to shunting Indication message successfully by service distributing to WLAN after, the access results messages that receiver 32 further reception user terminal or WLAN access point return, when carrying EPS bearing identification in access results messages, processor 31 initiates the operation of deleting the carrying of corresponding evolved packet system according to EPS bearing identification further.

Refer to Figure 11, Figure 11 is the structural representation of another execution mode of the application's user terminal, and present embodiment user terminal 100, comprising: processor 41, receiver 42, transmitter 43; Wherein,

Transmitter 43, for sending the wireless network shunting request of carrying business information to access device;

Receiver 42, for receiving the shunting Indication message returned from access device, and exports to processor 41 by shunting Indication message;

Processor 41, for performing corresponding triage operator according to shunting Indication message.

Further, above-mentioned user terminal 100 can also comprise random access memory 44, read-only memory 45 and bus 46.Wherein, processor 41 couples receiver 42, transmitter 43, random access memory 44 and read-only memory 45 respectively by bus 46.Wherein, when needs run user terminal 100, by being solidificated in the basic input output system in read-only memory 45 or the bootloader guidance system in embedded system starts, user terminal 100 is guided to enter normal operating condition.After user terminal 100 enters normal operating condition, run application and operating system in random access memory 44, and make:

Transmitter 43 sends the wireless network shunting request of carrying business information to access device;

Receiver 42 receives the shunting Indication message returned from access device, and shunting Indication message is exported to processor 41;

Processor 41 performs corresponding triage operator according to shunting Indication message.

Wherein, wireless network shunting request sends in the form of a message, can comprise the business information of request shunting, the five-tuple, TFT, application identities etc. of such as TCP/UDP IP header in this request message.Five-tuple refers to by source IP address, source port, object IP address, destination interface, and a set of transport layer protocol number these five amount compositions.Such as: 192.168.1.1,0000, TCP, 21.14.88.76,80 just constitute a five-tuple.

Shunting Indication message comprises business information and the shunting instruction of request shunting, and shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

Processor 41 carries out triage operator according to shunting Indication message, such as when the shunting instruction comprised in shunting Indication message is when successfully shunting service identification, processor 41 is linked into the WLAN of carrying shunting by access point according to WLAN shunt Indication message, and send access results messages to access device.

When successfully by after on service distributing to WLAN, if the business that wireless network is request shunting establishes EPS carrying, processor 41 sends to comprise to access device deletes the access results messages that EPS carries instruction, and access results messages comprises evolved packet system bearing identification.

According to above-mentioned access device and user terminal, the application also provides a kind of network system, network system comprises access device 200 and user terminal 100, wherein realize communication between access device 200 and user terminal 100, specific implementation process refers to 1 and associated description, the concrete function of access device 200 and user terminal 100 realizes the description that please participate in Fig. 2-Figure 11 related embodiment, does not repeat them here.

Technique scheme, by sending the access device held to RAN of WLAN shunt request carrying business information, being held by RAN and controlling wireless network and be diverted on WLAN.Because RAN end more easily obtains the load condition of RAN and WLAN and the information such as channel quality of eating dishes without rice or wine, thus suitable WLAN can be selected according to the business information in these information and shunting request, user terminal is linked into and can carries on the WLAN of request shunting business, effectively promote the experience of user radio network.

In several execution modes that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiments described above is only schematic, such as, the division of described module or unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of present embodiment scheme.

In addition, each functional unit in each execution mode of the application can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that the technical scheme of the application contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform all or part of step of method described in each execution mode of the application.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.

The foregoing is only the execution mode of the application; not thereby the scope of the claims of the application is limited; every utilize present specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in the scope of patent protection of the application.

Claims

1. a shunt method for wireless network, is characterized in that, comprising:

Access device detects the wireless network shunting request of carrying business information;

If the business in described shunting request is applicable to being diverted to WLAN (wireless local area network), selects the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message;

Send described shunting Indication message to user terminal, perform corresponding WLAN (wireless local area network) access operation to make user terminal according to described shunting Indication message.

2. method according to claim 1, is characterized in that,

Described shunting Indication message comprises business information and the shunting instruction of request shunting, and described shunting instruction comprises successfully shunts service identification, refusal shunting service identification or hangs up the wherein a kind of of service identification.

3. method according to claim 2, is characterized in that,

If described shunting instruction comprises successfully shunt service identification, described shunting Indication message also comprises the WLAN (wireless local area network) information of carrying shunting.

4. method according to claim 3, is characterized in that,

The WLAN (wireless local area network) information of described carrying shunting comprises at least one in the basic service set identification of WLAN (wireless local area network) of carrying shunting, service set, the media access control address of access point, channel frequency.

5. method according to claim 2, is characterized in that,

If described shunting instruction comprises hang-up service identification, then described to user terminal send shunting Indication message step after, also comprise:

Described access device continues to attempt finding to have the WLAN (wireless local area network) carrying described hang-up professional ability, till the message finding the WLAN (wireless local area network) having and carry described hang-up professional ability or the wireless network receiving described hang-up business shunting to cancel.

6. the method according to any one of claim 1 to 5, is characterized in that,

Described to user terminal send shunting Indication message step after, also comprise:

Receive the WLAN (wireless local area network) access results messages that described user terminal or wireless local network connecting point return.

7. method according to claim 6, is characterized in that,

After the step of the WLAN (wireless local area network) access results messages that the described user terminal of described reception or wireless local network connecting point return, also comprise:

If carry evolved packet system bearing identification in described access results messages, then initiate the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

8. the method according to claim 1-7, is characterized in that,

Access device detects that the step of the wireless network shunting request of carrying business information comprises:

Access device detects that the wireless network carrying business information sent by user terminal or equipment of the core network shunts request; Or

Access device detects the wireless network shunting request of carrying business information self initiated.

9. the method according to any one of claim 1-8, is characterized in that,

Described access device is any one in the access point of radio communication base station, network controller or WLAN (wireless local area network).

10. the method according to any one of claim 1-9, is characterized in that,

If the business in described described request is applicable to being diverted to WLAN (wireless local area network), before selecting that there is the step of the WLAN (wireless local area network) carrying described professional ability, also comprise:

Described access device according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN (wireless local area network).

11. methods according to any one of claim 1-10, is characterized in that,

Described business information comprises at least one in the five-tuple of transmission control protocol/User Datagram Protocol IP header, traffic flow template, application identities.

The shunt method of 12. 1 kinds of wireless networks, is characterized in that,

User terminal sends the wireless network shunting request of carrying business information to access device;

Receive the shunting Indication message that described access device returns;

Corresponding triage operator is performed according to described shunting Indication message.

13. methods according to claim 12, is characterized in that,

14. methods according to claim 13, is characterized in that,

If described shunting instruction comprises successfully shunt service identification, described shunting Indication message also comprises the WLAN (wireless local area network) information of carrying shunting;

The described step performing corresponding triage operator according to described shunting Indication message comprises:

Described user terminal is linked into the WLAN (wireless local area network) of described carrying shunting by access point according to described WLAN (wireless local area network) shunting Indication message;

Access results messages is sent to described access device.

15. methods according to claim 14, is characterized in that,

If the business that wireless network is described request shunting establishes evolved packet system carrying, the described step to described access device transmission access results messages comprises:

Send the access results messages comprising and delete described evolved packet system carrying instruction to described access device, described access results messages comprises evolved packet system bearing identification.

16. 1 kinds of access devices, is characterized in that, comprise detection module, select module and sending module, wherein:

Described detection module is for detecting the wireless network shunting request of carrying business information;

When the business of described selection module in described shunting request is applicable to being diverted to WLAN (wireless local area network), select the WLAN (wireless local area network) of the professional ability had in carrying described request, generate corresponding shunting Indication message, and described shunting Indication message is exported to described sending module;

Described sending module is used for sending described shunting Indication message to user terminal, performs corresponding WLAN (wireless local area network) access operation to make user terminal according to described shunting Indication message.

17. access devices according to claim 16, is characterized in that,

Described access device also comprises receiver module, for receiving the WLAN (wireless local area network) access results messages that described user terminal or wireless local network connecting point return.

18. access devices according to claim 17, is characterized in that,

Described access device also comprises removing module, for when carrying evolved packet system bearing identification in described access results messages, initiates the operation of deleting the carrying of corresponding evolved packet system according to described evolved packet system bearing identification.

19. access devices according to any one of claim 16-18, is characterized in that,

20. access devices according to any one of claim 16-18, is characterized in that,

Described access device also comprises judge module, for according to wireless access network self prewired and/or find and the distributing strategy that obtains of selection functional entity from automatic network, judge whether the business in described request is applicable to being diverted to WLAN (wireless local area network).

21. 1 kinds of user terminals, is characterized in that, comprise request module, receiver module and control module, wherein:

Described request module is used for sending the wireless network shunting request of carrying business information to access device;

The shunting Indication message that described receiver module returns for receiving described access device, and described shunting Indication message is exported to described control module;

Described control module is used for performing corresponding triage operator according to described shunting Indication message.

22. user terminals according to claim 21, is characterized in that,

23. user terminals according to claim 22, is characterized in that,

Described control module is used for the WLAN (wireless local area network) being linked into described carrying shunting according to described WLAN (wireless local area network) shunting Indication message by access point, and sends access results messages to described access device.

24. user terminals according to claim 23, is characterized in that,

If the business that wireless network is described request shunting establishes evolved packet system carrying, described control module is used for sending to described access device the access results messages comprising and delete described evolved packet system carrying instruction, and described access results messages comprises evolved packet system bearing identification.