CN104717709B

CN104717709B - A kind of method for switching network and device

Info

Publication number: CN104717709B
Application number: CN201310692692.6A
Authority: CN
Inventors: 吴健; 王振强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2018-08-17
Anticipated expiration: 2033-12-16
Also published as: CN104717709A; WO2015089849A1

Abstract

The present invention discloses a kind of method for switching network and device, it is related to network technique field, caused ease for use is relatively low and signaling storm when can solve the problems, such as to carry out network shunt using WLAN, and reduces the processing pressure of mobile terminal and network side, reduces the docking of LA Management Room.The embodiment of the present invention can obtain the first parameter of terminal and the destination service set identifier SSID of terminal, and the carrying of the first parameter is sent to the second network in the first switching request, so that the second network determines the key parameter of the second network of access according to the first parameter.Then the first handoff response of the carrying key parameter of the second network transmission is received, and target SSID and key parameter are carried and are sent to terminal in the second handoff response or switching command so that terminal can be switched to the second network according to target SSID and key parameter from first network.Scheme provided in an embodiment of the present invention is suitable for using when network switching.

Description

A kind of method for switching network and device

Technical field

The present invention relates to network technique field more particularly to a kind of method for switching network and device.

Background technology

With the development of network, also rapid growth, the mobile broadband of rapid growth use the usage amount of mobile broadband therewith Amount causes network congestion.In order to solve the problems, such as that WLAN (Wireless has been built in network congestion, operator's input Local Area Network, WLAN), so that WLAN is played the role of network shunt, to mitigate the load of mobile network.Due to every A WLAN has the coverage area of oneself, and when user is in some WLAN coverage, user can use this network, when After user moves out except network coverage, then search is less than this network.

However, when being shunted using WLAN, when user searches available WLAN, it is found that most WLAN Be designed with key, thus by terminal from third generation partnership project (The3rd Generation Partnership Project, 3GPP) network switching is to WLAN, and in the case of needing certification, user cannot be introduced into the WLAN so that the WLAN's Ease for use degree is very low；Further, since user, which frequently attempts access WLAN, can lead to signaling storm.

Meanwhile when terminal has accessed WLAN, and is in the same coverage area of 3GPP networks and WLAN, WLAN's In the case that terminal connects not then WLAN when signal strength is too weak, terminal will actively be switched to 3GPP networks.However in terminal During WLAN is switched to 3GPP networks, it will the continuity of blocking communication business.

Invention content

The embodiment of the present invention provides a kind of method for switching network and device, by terminal from 3GPP network switching to WLAN During, caused ease for use is relatively low and signaling storm when can solve the problems, such as to carry out network shunt using WLAN； Using another method for switching network and device, during terminal is switched to 3GPP networks from WLAN, it is ensured that logical The continuity of communication service.

In a first aspect, the embodiment of the present invention provides a kind of method for switching network, including：

It obtains the first parameter of terminal and the destination service set identifier SSID of the terminal, the terminal is located at the first net Network, first parameter include：International mobile subscriber identity IMSI or network access Identifier NAI, media access control MAC Address；

First parameter carrying is sent to the second network in the first switching request, so that the second network root The key parameter for accessing second network is determined according to first parameter；

The first handoff response that second network is sent is received, the key ginseng is carried in first handoff response Number；

The carrying of second parameter is sent to the terminal, second parameter in the second handoff response or switching command Including the target SSID and the key parameter, so that the terminal switches according to second parameter from the first network To second network.

In the first possible implementation, with reference to first aspect, the first network is counted for third generation affiliate 3GPP networks are drawn, second network is WLAN WLAN.

In second of possible realization method, with reference to first aspect in the first possible realization method, the acquisition First parameter of terminal and the destination service set identifier SSID of the terminal, including：

Receive that the terminal sends from the first network to the second switching request of second network, described second First parameter is carried in switching request, obtains first parameter in second switching request；Obtain the target SSID；

It is described that the carrying of second parameter is sent to the terminal in the second handoff response or switching command, including：

Second handoff response is sent to the terminal, second parameter is carried in second handoff response, Second parameter includes the target SSID and the key parameter.

In the third possible realization method, with reference to first aspect in second of possible realization method, the acquisition The target SSID, including：

According to preset SSID, the target SSID is determined;Alternatively,

If second switching request further includes WLAN measurement reports, and the WLAN measurement reports include SSID and institute The corresponding signal strengths of SSID are stated, then according to the SSID and the corresponding signals of the SSID in the WLAN measurement reports Intensity determines the target SSID.

In the 4th kind of possible realization method, with reference to first aspect in the first possible realization method, the acquisition First parameter of terminal and the destination service set identifier SSID of the terminal, including：

Receive the WLAN measurement reports that the terminal is sent, the WLAN measurement reports include first parameter, SSID and the corresponding signal strengths of the SSID；

Obtain first parameter in the WLAN measurement reports, and according to described in the WLAN measurement reports SSID and the corresponding signal strengths of the SSID, determine the target SSID；

The switching command is sent to the terminal, carries second parameter in the switching command, described second Parameter includes the target SSID and the key parameter.

In the 5th kind of possible realization method, with reference to first aspect in the third possible realization method or the 4th kind can The realization method of energy, the WLAN measurement reports further include elementary object service set BSSID and the corresponding letters of the BSSID Number intensity, the method further include：

According to the BSSID and the corresponding signal strengths of the BSSID, target BSSID is determined；

Wherein, second parameter further includes the target BSSID so that the terminal according to second parameter from The first network is switched to the access point of the target BSSID instructions under target SSID described in second network.

In the 6th kind of possible realization method, any possible realization side with reference to first aspect and in first aspect Formula, the method further include：

The third parameter of the terminal is obtained, the third parameter includes cell-of-origin mark ID or quality of service Qos letter Breath；

Third parameter carrying is sent to second network in first switching request, so that described the Two networks determine whether that the terminal is switched to second network from the first network according to the third parameter.

Second aspect, the embodiment of the present invention provide a kind of method for switching network, including：

The first parameter of terminal is obtained, the terminal is located at first network, and first parameter includes Target Cell Identifier ID；

Target cell ID carryings are sent to the second network in the first switching request, so that second network The radio bearer RB reconfiguration parameters for accessing second network are determined according to the Target cell ID；

The first handoff response that second network is sent is received, carrying the RB in first handoff response reconfigures Parameter；

Second parameter is carried and is sent to the terminal, the second parameter packet in the second handoff response or switching command Include the Target cell ID and the RB reconfiguration parameters, so as to the terminal according to second parameter from first net Network is switched to second network.

In the first possible implementation, in conjunction with second aspect, the first network is WLAN WLAN, institute It is third generation partner program 3GPP networks to state the second network.

In second of possible realization method, in conjunction with the possible realization method of the first in second aspect, the acquisition First parameter of terminal, including：

Receive that the terminal sends from the first network to the second switching request of second network；According to described Second switching request and preset cell ID, determine the Target cell ID；

Described carry the second parameter is sent to the terminal in the second handoff response or switching command, including：

Second handoff response is sent to the terminal, second parameter is carried in second handoff response.

In the third possible realization method, in conjunction with second in second aspect possible realization method, described second Switching request further includes 3GPP measurement reports, and the 3GPP measurement reports include the adjacent small of Service Access Point where the terminal The signal strength of area ID and the neighboring community；According to the signal strength of the neighboring community ID and the neighboring community, determine The Target cell ID.

In the 4th kind of possible realization method, in conjunction with the possible realization method of the first in second aspect, the acquisition First parameter of terminal, including：

The 3GPP measurement reports that the terminal is sent are received, the 3GPP measurement reports include service where the terminal The signal strength of the neighboring community ID and the neighboring community of access point；According to the neighboring community ID and the neighboring community Signal strength determines the Target cell ID；

The switching command is sent to the terminal, second parameter is carried in the switching command.

In the 5th kind of possible realization method, in conjunction with any possible realization side in second aspect and second aspect Formula, the method further include：

The third parameter of the terminal is obtained, the third parameter includes international mobile subscriber identity IMSI or service Quality Q os；

The third aspect, the embodiment of the present invention provide a kind of network switching device, including：

Acquiring unit, the destination service set identifier SSID of the first parameter and the terminal for obtaining terminal are described Terminal is located at first network, and first parameter includes：International mobile subscriber identity IMSI or network access Identifier NAI, MAC address；

Transmission unit, first parameter carrying for obtaining the acquiring unit are sent in the first switching request To the second network, so that second network determines the key parameter for accessing second network according to first parameter；

Receiving unit, the first handoff response sent for receiving second network are taken in first handoff response With the key parameter；

The transmission unit is additionally operable to the second parameter carrying being sent to institute in the second handoff response or switching command Terminal is stated, second parameter includes the key parameter that the target SSID and the receiving unit receive, so as to described Terminal is switched to second network according to second parameter from the first network.

In the first possible implementation, in conjunction with the third aspect, the first network is counted for third generation affiliate 3GPP networks are drawn, second network is WLAN WLAN.

In second of possible realization method, in conjunction with the possible realization method of the first in the third aspect, the acquisition Unit specifically includes：First receiving module, the first acquisition module and the second acquisition module；

First receiving module, for receiving that the terminal sends from the first network to second network Second switching request carries first parameter in second switching request；

First acquisition module, for obtaining first parameter in second switching request；

Second acquisition module is additionally operable to obtain the target SSID；

The transmission unit, specifically for second handoff response is sent to the terminal, second switching is rung Middle carrying second parameter is answered, second parameter includes the target SSID and the key parameter.

In the third possible realization method, in conjunction with second in the third aspect possible realization method, described second Acquisition module is specifically used for：

According to preset SSID, the target SSID is determined;Alternatively,

In the 4th kind of possible realization method, in conjunction with the possible realization method of the first in the third aspect, the acquisition Unit specifically includes：Second receiving module, third acquisition module and determining module；

Second receiving module, the WLAN measurement reports sent for receiving the terminal, the WLAN measurement reports Include first parameter, SSID and the corresponding signal strengths of the SSID；

The third acquisition module, for obtaining first parameter in the WLAN measurement reports；

The determining module, for according to the SSID and the corresponding letters of the SSID in the WLAN measurement reports Number intensity, determines the target SSID；

The transmission unit is carried specifically for the switching command is sent to the terminal in the switching command Second parameter, second parameter include the target SSID and the key parameter.

It, can in conjunction with the possible realization method of the third in the third aspect or the 4th kind in the 5th kind of possible realization method The realization method of energy, the WLAN measurement reports further include elementary object service set BSSID and the corresponding letters of the BSSID Number intensity, second acquisition module are additionally operable to, according to the BSSID and the corresponding signal strengths of the BSSID, determine target BSSID；

In the 6th kind of possible realization method, in conjunction with any possible realization side in the third aspect and the third aspect Formula,

The acquiring unit is additionally operable to obtain the third parameter of the terminal, and the third parameter includes cell-of-origin mark ID or quality of service Qos information；

The transmission unit, is additionally operable to carry the third parameter and is sent in first switching request described the Two networks, so that second network determines whether that the terminal is cut from the first network according to the third parameter Change to second network.

Fourth aspect, the embodiment of the present invention provide a kind of network switching device, including：

Acquiring unit, the first parameter for obtaining terminal, the terminal are located at first network, and first parameter includes Target Cell Identifier ID；

Transmission unit, the Target cell ID carryings for obtaining the acquiring unit are sent out in the first switching request The second network is given, so that second network determines that accessing the wireless of second network holds according to the Target cell ID Carry RB reconfiguration parameters；

Receiving unit, the first handoff response sent for receiving second network are taken in first handoff response With the RB reconfiguration parameters；

The transmission unit is additionally operable to the second parameter carrying being sent in the second handoff response or switching command described Terminal, second parameter include the RB reconfiguration parameters that the Target cell ID and the receiving unit receive, with Toilet states terminal and is switched to second network from the first network according to second parameter.

In the first possible implementation, in conjunction with fourth aspect, the first network is WLAN WLAN, institute It is third generation partner program 3GPP networks to state the second network.

In second of possible realization method, in conjunction with the possible realization method of the first in fourth aspect, the acquisition Unit, including：

First receiving module, second from the first network to second network sent for receiving the terminal Switching request；

First determining module, for according to second switching request and preset cell ID, determining that the target is small Area ID；

The transmission unit is additionally operable to second handoff response being sent to the terminal, second handoff response It is middle to carry second parameter.

In the third possible realization method, in conjunction with second in fourth aspect possible realization method, described second Switching request further includes 3GPP measurement reports, and the 3GPP measurement reports include the adjacent small of Service Access Point where the terminal The signal strength of area ID and the neighboring community；First determining module is additionally operable to according to the neighboring community ID and described The signal strength of neighboring community determines the Target cell ID.

In the 4th kind of possible realization method, in conjunction with the possible realization method of the first in fourth aspect, the acquisition Unit specifically includes：Second receiving module and the second determining module；

Second receiving module, the 3GPP measurement reports sent for receiving the terminal, the 3GPP measurement reports It include the signal strength of the neighboring community ID and the neighboring community of Service Access Point where the terminal；

Second determining module is determined for the signal strength according to the neighboring community ID and the neighboring community The Target cell ID；

The transmission unit is carried specifically for the switching command is sent to the terminal in the switching command Second parameter.

In the 5th kind of possible realization method, in conjunction with any possible realization side in fourth aspect and fourth aspect Formula,

The acquiring unit is additionally operable to obtain the third parameter of the terminal, and the third parameter includes international mobile use Family identification code IMSI or quality of service Qos；

A kind of method for switching network and device provided in an embodiment of the present invention can obtain the first parameter and the end of terminal The destination service set identifier SSID at end, and the carrying of the first parameter is sent to the second network in the first switching request, so that Second network determines the key parameter of the second network of access according to the first parameter.Then the carrying key of the second network transmission is received First handoff response of parameter, and target SSID and key parameter are carried and sent in the second handoff response or switching command To terminal so that terminal can be switched to the second network according to target SSID and key parameter from first network, with the prior art In when user searches available wlan network, it is found that most wlan network is designed with key, and user cannot be introduced into The wlan network so that the ease for use degree of the wlan network is very low, and can cause since user frequently attempts access WLAN Signaling storm is compared, scheme provided in an embodiment of the present invention caused ease for use when can solve using WLAN progress network shunts The problem of relatively low and signaling storm, and the processing pressure of mobile terminal and network side is reduced, reduce LA Management Room Docking.

Another kind method for switching network and device provided in an embodiment of the present invention, can obtain the first parameter of terminal, institute It includes Target cell ID to state the first parameter, and Target cell ID carryings are sent to the second network in the first switching request, so that Obtain the RB reconfiguration parameters that the second network determines the second network of access according to Target cell ID.Then the transmission of the second network is received The first handoff response of RB reconfiguration parameters is carried, and Target cell ID and RB reconfiguration parameters are carried in the second handoff response Or terminal is sent in switching command so that terminal can be cut according to Target cell ID and RB reconfiguration parameters from first network The second network is changed to, and in the prior art during terminal is switched to 3GPP networks from WLAN, it will blocking communication business Continuity compare, the embodiment of the present invention can ensure the continuity of communication service.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art With obtain other attached drawings according to these attached drawings.

Fig. 1 is a kind of flow chart of method for switching network provided by one embodiment of the present invention；

Fig. 2 is the flow chart for another method for switching network that another embodiment of the present invention provides；

Fig. 3 is the flow chart for another method for switching network that another embodiment of the present invention provides；

Fig. 4 is the flow chart for another method for switching network that another embodiment of the present invention provides；

Fig. 5 is the flow chart for another method for switching network that another embodiment of the present invention provides；

Fig. 6 is a kind of block diagram for network switching device that another embodiment of the present invention provides；

Fig. 7 is the block diagram for another network switching device that another embodiment of the present invention provides；

Fig. 8 is the block diagram for another network switching device that another embodiment of the present invention provides；

Fig. 9 is the block diagram for another network switching device that another embodiment of the present invention provides；

Figure 10 is the block diagram for another network switching device that another embodiment of the present invention provides；

Figure 11 is the block diagram for another network switching device that another embodiment of the present invention provides.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts Embodiment shall fall within the protection scope of the present invention.

Handover module in various embodiments of the present invention can be autonomous device, can also be integrated into WLAN (Wireless Local Area Network, WLAN) or third generation partner program (The3rd Generation Partnership Project, 3GPP) network existing network element in, such as access controller（Access Controller, AC）、 Radio network controller（Radio Network Controller, RNC）And base station controller（Base Station Controller, BSC）Deng.

The embodiment of the present invention provides a kind of method for switching network, and the application scenarios of this method are to cut terminal from 3GPP networks WLAN is changed to, the executive agent of this method is handover module, as shown in Figure 1, this method includes：

Step 101, the first parameter of terminal and the destination service set identifier of terminal are obtained（Service Set Identifier, SSID）.

When terminal is located at first network, i.e. 3GPP networks, if by terminal from 3GPP network switching to WLAN, end is needed First parameter is sent to handover module by end, and the first parameter includes：International mobile subscriber identity（International Mobile Subscriber Identification Number, IMSI）Or network access Identifier（Network Access Identifier, NAI）, media access control（Media Access Control, MAC）Address.

If terminal sends the first parameter to handover module, WLAN measurement reports are also sent to handover module, then Handover module can determine signal according to the SSID and the corresponding signal strengths of the SSID in the WLAN measurement reports The strongest SSID of intensity is target SSID, or determines that the SSID more than set access signal strength threshold is target SSID。

If terminal sends the first parameter to handover module, WLAN measurement reports are not sent to handover module, then are cut Block is changed the mold using preset SSID as target SSID.Preset SSID refers to network manager preset service according to demand Set identifier, the SSID can be China Mobile（China Mobile, CM）, or China Unicom（China Unicom, CU）, this programme is not specifically limited.

Step 102, the carrying of the first parameter is sent to the second network in the first switching request, so that the second network root The key parameter of the second network of access is determined according to the first parameter.

The second network in this step is WLAN, and the first switching request is the switching request from 3GPP network to WLAN.When After handover module obtains the first parameter, then the first parameter is carried and be sent to WLAN in the first switching request, so as to WLAN roots Can be according to the key parameter of IMSI or NAI, MAC Address acquisition access WLAN in the first parameter, such as the key parameter Pairwise master key security association（Pairwise Master Key Security Association, PMKSA）.

It should be noted that, IMSI or NAI in the first parameter can be existed simultaneously, and can also be only existed wherein any one A parameter, the key parameter of access WLAN is obtained on WLAN not to be influenced.

Step 103, the first handoff response that the second network is sent is received, key parameter is carried in the first handoff response.

In this step, the first handoff response is the handoff response from 3GPP network to WLAN.When WLAN obtains access WLAN Key parameter after, then to handover module send the first handoff response, and by the key parameter of acquisition carry first switching ring Handover module is sent in answering.

Step 104, the carrying of the second parameter is sent to terminal, the second parameter in the second handoff response or switching command Including target SSID and key parameter, so that terminal is switched to the second network according to the second parameter from first network.

In this step, when the first switching request initiated by terminal, handover module is obtaining the first of WLAN transmissions After handoff response, the second handoff response for carrying the second parameter is sent to terminal；When the first switching initiated by handover module When request, the switching command for carrying the second parameter is sent to by handover module after obtaining the first handoff response that WLAN is sent Terminal.

Wherein, the key parameter that handover module sends the WLAN received, with the target SSID obtained in a step 101 The second parameter is constituted together, and the second parameter is carried and is sent to terminal in the second handoff response or switching command, so as to Terminal is according to the second parameter from 3GPP network switching to WLAN.

Method for switching network provided in an embodiment of the present invention can obtain the first parameter of terminal and the target clothes of terminal Be engaged in set identifier SSID, and the carrying of the first parameter is sent to the second network in the first switching request, so that the second network root The key parameter of the second network of access is determined according to the first parameter.Then the first of the carrying key parameter of the second network transmission is received Handoff response, and target SSID and key parameter are carried and are sent to terminal in the second handoff response or switching command, make The second network can be switched to according to target SSID and key parameter from first network by obtaining terminal, can solve to carry out using WLAN The problem of caused ease for use is relatively low when network shunt and signaling storm, and reduce the processing of mobile terminal and network side Pressure reduces the docking of LA Management Room.

The embodiment of the present invention provides a kind of method for switching network, and the application scenarios of this method are to cut terminal from 3GPP networks WLAN is changed to, as shown in Fig. 2, this method includes：

Step 201, the second switching request slave first network to the second network that handover module reception terminal is sent, second The first parameter and third parameter are carried in switching request.

It should be noted that before executing step 201, terminal should be connected to first network.

Terminal is switched to the second network by this step for what terminal was initiated from first network, and wherein first network is 3GPP nets Network, the second network are WLAN.

When terminal is located at 3GPP networks, if by terminal from 3GPP network switching to WLAN, need terminal by the first ginseng Number and third parameter are sent to handover module, and the first parameter includes IMSI or NAI, MAC Address；Third parameter includes that source is small Area identifies（Identity, ID）Or service quality（Quality of Service, QoS）Information.

Optionally, while terminal sends the first parameter and third parameter to handover module, WLAN can also be measured Report is sent to handover module, and WLAN measurement reports include SSID and the corresponding signal strengths of the SSID.

Step 202, handover module receives the WLAN measurement reports that terminal is sent, and WLAN measurement reports include the first ginseng Number, SSID and the corresponding signal strengths of the SSID and third parameter.

Before executing step 202, terminal should be connected to first network.

Terminal is switched to the second network by this step for what handover module was initiated from first network.When terminal is in the first net When network, i.e. 3GPP networks, if handover module is thought to need by terminal from 3GPP network switchings to WLAN, terminal is to handover module WLAN measurement reports are sent, 3GPP measurement reports include the first parameter, third parameter and SSID and the SSID corresponding Signal strength.

Optionally, further include basic service set identification in WLAN measurement reports（Basic Service Set Identifier, BSSID）And the corresponding signal strength of the BSSID.

Step 201, step 202 are two steps arranged side by side, to obtain the first parameter, third parameter and the end of terminal Two different modes of the target SSID at end.Obtaining the first parameter of terminal, the target SSID of third parameter and terminal When can only execute step 201, or only execute step 202.Step 202 is indicated with dotted line frame in attached drawing, to illustrate step 202 For optional step；Step 201 can certainly be indicated with dotted line frame.

Step 203, handover module obtains the target SSID of the first parameter of terminal, third parameter and terminal.

If terminal is initiated terminal being switched to the second network from first network, the first parameter is carried in the second switching request And in the case of third parameter, the second switching request triggers handover module and obtains preset SSID, and preset SSID refers to net Preset service set, the SSID can be CM to network manager according to demand, or CU, this programme are not done specifically It limits.

In the case of also carrying WLAN measurement reports in the second switching request, according to the SSID in WLAN measurement reports with And the corresponding signal strength of the SSID, determine that the strongest SSID of signal strength is target SSID, or determine to be more than set Access signal strength threshold SSID be target SSID.

If handover module initiates terminal being switched to the second network from first network, handover module is sent according to terminal The first parameter, third parameter and SSID in WLAN measurement reports and the corresponding signal strengths of the SSID；Obtain the first ginseng Number, third parameter and target SSID.

It optionally, can be with when further including the corresponding signal strengths of the BSSID and BSSID in WLAN measurement reports According to BSSID and the corresponding signal strengths of the BSSID, target BSSID is determined.For example, can be most strong with selection signal intensity BSSID as target BSSID, herein not limit.

Step 204, the first parameter and third parameter are carried and are sent to second in the first switching request by handover module Network.

Step 205, the second network determines whether that terminal is switched to described second from first network according to third parameter Network.

In this step, third parameter includes cell-of-origin ID or QoS information.

Handover module makes comparisons the cell-of-origin ID received with preset cell ID, it is determined whether allow terminal from First network is switched to the second network.For example, preset cell is ID1 in handover module, if the cell-of-origin received For ID1, then terminal is allowed to be switched to the second network from first network；If the cell-of-origin ID received is ID2 or ID3, no Terminal is allowed to be switched to the second network from first network.

Handover module is according to the QoS information received, it is determined whether terminal is allowed to be switched to the second network from first network. For example, showing that the terminal has successional business, such as foradownloaded video etc. then to allow in the QoS information that handover module receives Terminal is switched to the second network from first network；If show that the terminal is browsing webpage in QoS information, do not allow terminal It is switched to the second network from first network.

It should be noted that cell-of-origin ID or QoS information can exist simultaneously, there may also be any one parameters. When the second network is determined according to third parameter, and terminal is allowed to be switched to second network from first network, step 206 is executed, When the second network does not allow terminal to be switched to second network from first network according to the determination of third parameter, terminate flow.

Step 206, the second network determines the key parameter of the second network of access according to the first parameter.

In this step, the second network determines that the key parameter of the second network of access, key parameter can be with according to the first parameter For PMKSA.

Step 207, the first handoff response for carrying key parameter is sent to handover module by the second network.

First handoff response is the handoff response by terminal from 3GPP network to WLAN.When the second network obtains key parameter Afterwards, then key parameter carrying is sent into the handover module in the first handoff response.

Step 208, handover module receives the first handoff response that the second network is sent, and the second parameter is carried second It is sent to terminal in handoff response or switching command.

Second parameter includes key parameter and target SSID.

Optionally, if handover module according in WLAN measurement reports BSSID and the corresponding signals of the BSSID it is strong Degree further includes then target BSSID in the second parameter when obtaining target BSSID.

Step 209, terminal is switched to the second network according to the second parameter from first network.

In this step, terminal is switched to according to the key parameter and target SSID in the second parameter, from first network Two networks.

Optionally, if in the second parameter further including target BSSID, terminal is switched to according to the second parameter from first network The access point of target BSSID instructions in second network under target SSID.

It is further alternative, as shown in figure 3, during terminal is from 3GPP network switching to WLAN, in order to ensure that terminal is cut Business continuance during changing, this method further include：

Step 210, first network sends access request message to local gateway, and access request message carries public land and moves Dynamic network（Public Land Mobile Network, PLMN）ID, cell ID and terminal IMSI or NAI.

First network is 3GPP networks in this step.

Step 211, local gateway, which is sent, agrees to that access message to first network, agrees to that access message carries Internet protocol （Internet Protocol, IP）Address, virtual LAN（Virtual Local Area Network, VLAN）Or tunnel Road information.

In this step, local gateway is according to the parameter received, such as PLMN ID, cell ID and terminal IMSI or NAI, the tunnel information between being established from 3GPP network to local gateway for terminal distribution, such as IP address, VLAN or tunnel letter Breath.So that 3GPP networks and local gateway can carry out the transmission of data by the tunnel.

Step 212, the data of first network forwarding terminal are to local gateway, and local gateway is by the data of the terminal received It is transmitted to first network.

Optionally, step 210- steps 212 are the first network that is currently accessed of terminal by information such as the business datums of terminal It is sent to local gateway, so that local gateway preserves these information so that terminal is mobile and is switched to after the second network, second The information such as the business datum that network can access terminal after the second network are sent to local gateway, so as to realize terminal Business continuance.Step 201- steps 209 are executed after step 212, as shown in figure 3, in order to enable attached drawing is cheer and bright, It indicates to execute step 201- steps 209 in dotted line frame, for details, reference can be made to the descriptions of attached drawing 2, and this is no longer going to repeat them.Described After step 201- steps 209, i.e., terminal is switched to the second network from first network, for example, terminal from 3GPP network switchings to After WLAN, further include：

Step 213, the second network sends access request message to local gateway, and access request message carries SSID, BSSID, terminal IMSI or NAI, terminal MAC address, switching instruction.

The second network in this step is WLAN.

Step 214, local gateway, which is sent, agrees to that access message to the second network, carries IP address, VLAN or tunnel letter Breath.

Step 215, the data of the second forwarded terminal are to local gateway, and local gateway is by the data of the terminal received It is transmitted to the second network.

It should be noted that the data of the data of the terminal in this step and the terminal in step 212 are same business.

It is further alternative, key can be obtained by 802.1X Authentication identifying procedures in the prior art Parameter can also basis after then completing 3GPP networks to the switching of WLAN according to the switching flow of 3GPP networks to WLAN 3GPP networks complete industry of the terminal from 3GPP network switching to WLAN to the flow of the business continuance in the handoff procedure of WLAN Business continuity.

It is further alternative, it can also be switched fast flow by 802.11r in the prior art and complete terminal from 3GPP nets The switching of network to WLAN ensure the business continuance of terminal switching process then by step 210- steps 215 in attached drawing 3.

Method for switching network provided in an embodiment of the present invention, it is caused easy when can solve using WLAN progress network shunts With the problem of property is relatively low and signaling storm, and the processing pressure of mobile terminal and network side is reduced, reduces the network equipment Between docking.Also, when the second parameter further includes BSSID, terminal can be made to be switched to from first network according to the second parameter The access point that target BSSID is indicated under target SSID in second network.Meanwhile after the completion of network switching, passing through first network The data of net and the second network insertion net forwarding terminal are accessed to local gateway, it is ensured that first network is switched to the second net The business continuance of network.

The embodiment of the present invention provides a kind of method for switching network, and the application scenarios of this method are to be switched to terminal from WLAN 3GPP networks, as shown in figure 4, this method includes：

Step 401, the first parameter of terminal is obtained.

When terminal is located at first network, i.e. wlan network, if terminal is switched to 3GPP networks from WLAN, switch mould Block needs to obtain the first parameter, and first parameter includes Target cell ID.

If terminal sends the request for being switched to 3GPP networks from WLAN to handover module, carrying 3GPP measurement reports are cut Block is changed the mold, then handover module is according to the neighboring community ID of Service Access Point and the phase where the terminal in the 3GPP measurement reports The signal strength of adjacent cell, it may be determined that the strongest cell ID of signal strength is Target cell ID.

If terminal sends the request for being switched to from WLAN 3GPP networks to handover module, do not carry 3GPP measurement reports to Handover module, then handover module is using preset cell ID as Target cell ID.

Step 402, Target cell ID carryings are sent to the second network in the first switching request, so that the second network The radio bearer of the second network of access is determined according to Target cell ID（Radio Bear, RB）Reconfiguration parameters.

In this step, the second network is 3GPP networks, and the first switching request is that the switching of network is asked from WLAN to 3GPP It asks.After handover module obtains the first parameter, then the Target cell ID in the first parameter is carried and sent out in the first switching request 3GPP networks are given, so that 3GPP networks are according to the RB reconfiguration parameters of Target cell ID acquisition access 3GPP networks.

Step 403, the first handoff response that the second network is sent is received, carrying the RB in the first handoff response reconfigures Parameter.

In this step, the first handoff response is the handoff response of the network from WLAN to 3GPP.When the acquisition of 3GPP networks connects After the RB reconfiguration parameters for entering 3GPP networks, then the first handoff response is sent to handover module, and the RB of acquisition is reconfigured into ginseng Number carries and is sent to handover module in the first handoff response.

Step 404, the second parameter is carried and is sent to terminal, the second parameter packet in the second handoff response or switching command Target cell ID and RB reconfiguration parameters are included, so that terminal is switched to the second network according to the second parameter from first network.

In this step, when the first switching request initiated by terminal, handover module is obtaining what 3GPP networks were sent After first handoff response, the second handoff response for carrying the second parameter is sent to terminal；When first initiated by handover module When switching request, handover module sends out the switching command for carrying the second parameter after obtaining the first handoff response that 3GPP is sent Give terminal.

Wherein, handover module sends the 3GPP networks received RB reconfiguration parameters, and obtain in step 401 Target cell ID constitutes the second parameter together, and the second parameter is carried and is sent in the second handoff response or switching command Terminal is switched to 3GPP networks so that terminal is according to the second parameter from WLAN.

Method for switching network provided in an embodiment of the present invention can obtain the Target cell ID of terminal, by Target cell ID Carrying is sent to the second network in the first switching request, so that the second network determines the second net of access according to Target cell ID The RB reconfiguration parameters of network.Then the first handoff response of the carrying RB reconfiguration parameters of the second network transmission is received, and by mesh Mark cell ID and RB reconfiguration parameters carrying is sent to terminal in the second handoff response or switching command so that terminal can be with The second network is switched to from first network, it is ensured that terminal is switched to from WLAN according to Target cell ID and RB reconfiguration parameters The continuity of communication service during 3GPP networks.

The embodiment of the present invention provides a kind of method for switching network, and the application scenarios of this method are to be switched to terminal from WLAN 3GPP networks, as shown in figure 5, this method includes：

Step 501, the second switching request slave first network to the second network that handover module reception terminal is sent, second Third parameter is carried in switching request.

It should be noted that before executing step 501, terminal should be connected to first network.

Terminal is switched to the second network by this step for what terminal was initiated from first network, and wherein first network is WLAN, Second network is 3GPP networks.

When terminal is located at WLAN, if terminal is switched to 3GPP networks from WLAN, need terminal by third parameter It is sent to handover module, third parameter includes IMSI Qos information.

Optionally, when terminal sends third parameter to handover module, 3GPP measurement reports can also be sent to switching mould Block, 3GPP measurement reports include the signal strength of the neighboring community ID and the neighboring community of Service Access Point where terminal.

Step 502, handover module receives the 3GPP measurement reports that terminal is sent, and 3GPP measurement reports include third ginseng The signal strength of the neighboring community ID and the neighboring community of Service Access Point where number, terminal.

Before executing step 502, terminal should be connected to first network.

Terminal is switched to the second network by this step for what handover module was initiated from first network.When terminal is in the first net When network, i.e. WLAN, if handover module is thought to need terminal being switched to 3GPP networks from WLAN, terminal is sent to handover module 3GPP measurement reports.

Step 501, step 502 are two steps arranged side by side, can only execute step 501, or only execute step 502. Step 502 is indicated with dotted line frame in attached drawing, to illustrate step 502 for optional step；It can certainly be by step 501 with dotted line Frame indicates.

Step 503, handover module obtains the third parameter and the first parameter of terminal.

In this step, the first parameter includes Target cell ID.

If terminal is initiated terminal being switched to the second network from first network, third parameter is carried in the second switching request In the case of, the second switching request triggers handover module and obtains preset cell ID, as Target cell ID.

In the case of also carrying 3GPP measurement reports in the second switching request, according to the terminal institute in GPP measurement reports In the signal strength of the neighboring community ID and the neighboring community of Service Access Point, Target cell ID is determined.

If handover module initiates terminal being switched to the second network from first network, handover module is sent according to terminal The neighboring community ID of Service Access Point where third parameter, terminal in 3GPP measurement reports and the signal of the neighboring community are strong Degree obtains third parameter and Target cell ID.

Step 504, handover module carries third parameter and Target cell ID is sent to the in the first switching request Two networks.

Step 505, the second network determines whether that terminal is switched to described second from first network according to third parameter Network.

In this step, third parameter includes IMSI Qos information.

It should be noted that IMSI Qos information can exist simultaneously, there may also be any one parameters.When Two networks are determined according to third parameter when terminal being allowed to be switched to second network from first network, step 506 are executed, when the When two networks do not allow terminal to be switched to second network from first network according to the determination of third parameter, terminate flow.

Step 506, the second network determines the RB reconfiguration parameters of the second network of access according to Target cell ID.

Step 507, the first handoff response for carrying RB reconfiguration parameters is sent to handover module by the second network.

Step 508, handover module receives the first handoff response that the second network is sent, and the second parameter is carried second It is sent to terminal in handoff response or switching command.

Second parameter includes RB reconfiguration parameters and Target cell ID.

Step 509, terminal is switched to the second network according to the second parameter from first network.

Further alternative, terminal is switched to from WLAN in 3GPP network development process, in order to ensure in terminal switching process Business continuance, this method further include：

The step 210- steps 212 in attached drawing 3 are first carried out, are executing the step 212 execution step 501- steps 509, so Execute the step 213- steps 215 in attached drawing 3 again afterwards.

The embodiment of the present invention provides a kind of network switching device, as described in Figure 6, the device, including：Acquiring unit 601, hair Send unit 602, receiving unit 603.

Acquiring unit 601, the destination service set identifier SSID of the first parameter and the terminal for obtaining terminal, institute It states terminal and is located at first network, first parameter includes：International mobile subscriber identity IMSI or network access Identifier NAI, MAC address.

In this step, first network is 3GPP networks.

Transmission unit 602, first parameter for obtaining the acquiring unit 601 are carried in the first switching request In be sent to the second network so that second network determines the key for accessing second network according to first parameter Parameter.

In this step, the second network is WLAN.

Receiving unit 603, the first handoff response sent for receiving second network, in first handoff response Carry the key parameter.

The transmission unit 602 is additionally operable to send the carrying of the second parameter in the second handoff response or switching command To the terminal, second parameter includes the key parameter that the target SSID and the receiving unit 603 receive, with Toilet states terminal and is switched to second network from the first network according to second parameter.

It is further alternative, as shown in fig. 7, the acquiring unit 601, specifically includes：First receiving module 6011, first Acquisition module 6012, the second acquisition module 6013.

First receiving module 6011, for receiving that the terminal sends from the first network to second network Second switching request carries first parameter in second switching request.

First acquisition module 6012, for obtaining first parameter in second switching request.

Second acquisition module 6013 is additionally operable to obtain the target SSID.

The transmission unit 602, specifically for second handoff response is sent to the terminal, second switching Second parameter is carried in response, second parameter includes the target SSID and the key parameter.

Further alternative, second acquisition module 6012 is specifically used for, according to preset SSID, determining the target SSID;If alternatively, further include WLAN measurement reports for second switching request, and the WLAN measurement reports include SSID and the corresponding signal strengths of the SSID, then according to the SSID in the WLAN measurement reports and SSID couples described The signal strength answered determines the target SSID.

Further alternative, the acquiring unit 601 specifically includes：Second receiving module 6014, third acquisition module 6015, determining module 6016.

Second receiving module 6014, the WLAN measurement reports sent for receiving the terminal, the WLAN measurement reports Include first parameter, SSID and the corresponding signal strengths of the SSID.

Third acquisition module 6015 obtains first parameter in the WLAN measurement reports.

Determining module 6016, for according to the SSID and the corresponding letters of the SSID in the WLAN measurement reports Number intensity, determines the target SSID.

The transmission unit 602 is taken specifically for the switching command is sent to the terminal in the switching command With second parameter, second parameter includes the target SSID and the key parameter.

Further alternative, the WLAN measurement reports further include elementary object service set BSSID and the BSSID Corresponding signal strength, second acquisition module 6013 are additionally operable to according to the BSSID and the corresponding signals of the BSSID Intensity determines target BSSID.

Further alternative, the acquiring unit 601 is additionally operable to obtain the third parameter of the terminal, the third ginseng Number includes cell-of-origin mark ID or quality of service Qos information；

The transmission unit 602 is additionally operable to third parameter carrying being sent to institute in first switching request The second network is stated, so that second network determines whether the terminal from first net according to the third parameter Network is switched to second network.

It should be noted that in attached drawing 6 and 7 shown device of attached drawing, the specific implementation process of modules and each The contents such as the information exchange between module may refer to method due to being based on same inventive concept with the method for the present invention embodiment Embodiment does not repeat one by one herein.

Network switching device provided in an embodiment of the present invention, it is caused easy when can solve using WLAN progress network shunts With the problem of property is relatively low and signaling storm, and the processing pressure of mobile terminal and network side is reduced, reduces the network equipment Between docking.Also, when the second parameter further includes BSSID, terminal can be made to be switched to from first network according to the second parameter The access point that target BSSID is indicated under target SSID in second network.Meanwhile after the completion of network switching, passing through first network The data of net and the second network insertion net forwarding terminal are accessed to local gateway, it is ensured that first network is switched to the second net The business continuance of network.

The embodiment of the present invention provides a kind of network switching device, as shown in figure 8, the device includes：Acquiring unit 801, hair Send unit 802, receiving unit 803.

Acquiring unit 801, the first parameter for obtaining terminal, the terminal are located at first network, first parameter Including Target Cell Identifier ID.

In this step, first network WLAN.

Transmission unit 802, the Target cell ID for obtaining the acquiring unit 801 is carried to be asked in the first switching The second network is sent in asking, so that second network is determined according to the Target cell ID accesses second network Radio bearer RB reconfiguration parameters.

In this step, the second network is 3GPP networks.

Receiving unit 803, the first handoff response sent for receiving second network, in first handoff response Carry the RB reconfiguration parameters.

The transmission unit 802 is additionally operable to the second parameter carrying being sent in the second handoff response or switching command The terminal, second parameter include that the RB that receives of the Target cell ID and the receiving unit 803 is reconfigured Parameter, so that the terminal is switched to second network according to second parameter from the first network.

It is further alternative, as shown in figure 9, the acquiring unit 801, including：First receiving module 8011, first determines Module 8012.

First receiving module 8011, for receiving that the terminal sends from the first network to second network Second switching request.

First determining module 8012, for according to second switching request and preset cell ID, determining the mesh Mark cell ID.

The transmission unit 802 is additionally operable to second handoff response being sent to the terminal, and second switching is rung Answer middle carrying second parameter.

Further alternative, second switching request further includes 3GPP measurement reports, and the 3GPP measurement reports include The signal strength of the neighboring community ID and the neighboring community of Service Access Point where the terminal；First determining module 8012, it is additionally operable to the signal strength according to the neighboring community ID and the neighboring community, determines the Target cell ID.

Further alternative, the acquiring unit 801 specifically includes：Second receiving module 8013, the second determining module 8014。

Second receiving module 8013, the 3GPP measurement reports sent for receiving the terminal, the 3GPP measurement reports It include the signal strength of the neighboring community ID and the neighboring community of Service Access Point where the terminal.

Second determining module 8014 is determined for the signal strength according to the neighboring community ID and the neighboring community The Target cell ID.

The transmission unit 802 is taken specifically for the switching command is sent to the terminal in the switching command With second parameter.

Further alternative, the acquiring unit 801 is additionally operable to obtain the third parameter of the terminal, the third ginseng Number includes international mobile subscriber identity IMSI or quality of service Qos；

The transmission unit 802 is additionally operable to third parameter carrying being sent to institute in first switching request The second network is stated, so that second network determines whether the terminal from first net according to the third parameter Network is switched to second network.

It should be noted that in attached drawing 8 and 9 shown device of attached drawing, the specific implementation process of modules and each The contents such as the information exchange between module may refer to method due to being based on same inventive concept with the method for the present invention embodiment Embodiment does not repeat one by one herein.

Network switching device provided in an embodiment of the present invention can obtain the Target cell ID of terminal, by Target cell ID Carrying is sent to the second network in the first switching request, so that the second network determines the second net of access according to Target cell ID The RB reconfiguration parameters of network.Then the first handoff response of the carrying RB reconfiguration parameters of the second network transmission is received, and by mesh Mark cell ID and RB reconfiguration parameters carrying is sent to terminal in the second handoff response or switching command so that terminal can be with The second network is switched to from first network, it is ensured that terminal is switched to from WLAN according to Target cell ID and RB reconfiguration parameters The continuity of communication service during 3GPP networks.

The embodiment of the present invention provides a kind of network switching device, and as shown in Figure 10, which includes：Memory 1001, place Manage device 1002, transmitter 1003, receiver 1004.

Memory 1001, for store include program routine information.

Processor 1002 is coupled with memory 1001, the target of the first parameter and the terminal for obtaining terminal Service set SSID, the terminal are located at first network, and first parameter includes：International mobile subscriber identity IMSI or Person's network access Identifier NAI, MAC address.

First network in this step is 3GPP networks.

Transmitter 1003 is sent to the second network for first parameter carrying in the first switching request, so that Second network determines the key parameter for accessing second network according to first parameter.

The second network in this step is WLAN.

Receiver 1004, the first handoff response sent for receiving second network, in first handoff response Carry the key parameter.Then the transmitter 1003 is additionally operable to that the second parameter is carried in the second handoff response or cut It changes in order and is sent to the terminal, second parameter includes the target SSID and the key parameter, so as to the end End is switched to second network according to second parameter from the first network.

The processor 1002, is additionally operable to receive that the terminal sends from the first network to second network Second switching request carries first parameter in second switching request, obtains described in second switching request First parameter；Obtain the target SSID.Then the transmitter 1003, it is described for second handoff response to be sent to Terminal, carries second parameter in second handoff response, and second parameter includes the target SSID and described close Key parameter.

The processor 1002 is additionally operable to, according to preset SSID, determine the target SSID;If alternatively, described second Switching request further includes WLAN measurement reports, and the WLAN measurement reports include that SSID and the corresponding signals of the SSID are strong Degree, then according to the SSID and the corresponding signal strengths of the SSID in the WLAN measurement reports, determine the target SSID。

The processor 1002 is additionally operable to receive the WLAN measurement reports that the terminal is sent, the WLAN measurement reports Include first parameter, SSID and the corresponding signal strengths of the SSID；It obtains described in the WLAN measurement reports First parameter, and according to the SSID and the corresponding signal strengths of the SSID in the WLAN measurement reports, determine institute State target SSID.

The transmitter 1003 is additionally operable to the switching command being sent to the terminal, be carried in the switching command Second parameter, second parameter include the target SSID and the key parameter.

If the WLAN measurement reports further include elementary object service set BSSID and the corresponding signals of the BSSID Intensity, the transmitter 1003 are additionally operable to, according to the BSSID and the corresponding signal strengths of the BSSID, determine target BSSID；

The processor 1002 is additionally operable to obtain the third parameter of the terminal, and the third parameter includes cell-of-origin mark Know ID or quality of service Qos information；The transmitter 1003 is asked for carrying the third parameter in first switching Second network is sent in asking, so that second network determines whether the terminal according to the third parameter It is switched to second network from the first network.

It should be noted that in 10 shown device of attached drawing, the specific implementation process and modules of modules it Between the contents such as information exchange may refer to embodiment of the method due to being based on same inventive concept with the method for the present invention embodiment, It does not repeat one by one herein.

The embodiment of the present invention provides a kind of network switching device, and as shown in figure 11, which includes：Memory 1101, place Manage device 1102, transmitter 1103, receiver 1104.

Memory 1101, for store include program routine information.

Processor 1102, the first parameter for obtaining terminal, the terminal are located at first network, the first parameter packet Include Target Cell Identifier ID.

In this step, first network WLAN.

Transmitter 1103, for Target cell ID carryings to be sent to the second network in the first switching request, with So that second network determines the radio bearer RB reconfiguration parameters for accessing second network according to the Target cell ID.

In this step, the second network is 3GPP networks.

Receiver 1104, the first handoff response sent for receiving second network, in first handoff response Carry the RB reconfiguration parameters.

The transmitter 1103, it is described for the carrying of the second parameter to be sent in the second handoff response or switching command Terminal, second parameter includes the Target cell ID and the RB reconfiguration parameters, so that the terminal is according to Second parameter is switched to second network from the first network.

The processor 1102, is additionally operable to receive that the terminal sends from the first network to second network Second switching request；According to second switching request and preset cell ID, the Target cell ID is determined.

The transmitter 1103 is additionally operable to second handoff response being sent to the terminal, and second switching is rung Answer middle carrying second parameter.

The processor 1102, it further includes 3GPP measurement reports to be additionally operable to second switching request, and the 3GPP is measured Report includes the signal strength of the neighboring community ID and the neighboring community of Service Access Point where the terminal；According to the phase The signal strength of adjacent cell ID and the neighboring community determine the Target cell ID.

The processor 1102 is additionally operable to receive the 3GPP measurement reports that the terminal is sent, the 3GPP measurement reports It include the signal strength of the neighboring community ID and the neighboring community of Service Access Point where the terminal；According to described adjacent The signal strength of cell ID and the neighboring community determine the Target cell ID.

The transmitter 1103 is additionally operable to the switching command being sent to the terminal, be carried in the switching command Second parameter.

The processor 1102 is additionally operable to obtain the third parameter of the terminal, and the third parameter includes international mobile CUSTOMER ID IMSI or quality of service Qos.The transmitter 1103 is additionally operable to carry the third parameter described the Second network is sent in a handover request, so that second network is determined whether according to the third parameter The terminal is switched to second network from the first network.

It should be noted that in 11 shown device of attached drawing, the specific implementation process and modules of modules it Between the contents such as information exchange may refer to embodiment of the method due to being based on same inventive concept with the method for the present invention embodiment, It does not repeat one by one herein.

It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separating component The unit of explanation may or may not be physically separated, and the component shown as unit can be or can also It is not physical unit, you can be located at a place, or may be distributed over multiple network units.It can be according to actual It needs that some or all of module therein is selected to achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not In the case of making the creative labor, you can to understand and implement.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can borrow Help software that the mode of required common hardware is added to realize, naturally it is also possible to by specialized hardware include application-specific integrated circuit, specially It is realized with CPU, private memory, special components and parts etc., but the former is more preferably embodiment in many cases.Based in this way Understanding, substantially the part that contributes to existing technology can be with the shape of software product in other words for technical scheme of the present invention Formula embodies, which is stored in the storage medium that can be read, and such as the floppy disk of computer, USB flash disk, movement are hard Disk, read-only memory, random access memory, magnetic disc or CD etc., including some instructions are with so that a computer is set It is standby（Can be personal computer, server or the network equipment etc.）Execute the method described in each embodiment of the present invention.

Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device and For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method The part of embodiment illustrates.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of method for switching network, which is characterized in that including：

It obtains the first parameter of terminal and the destination service set identifier SSID of the terminal, the terminal is located at first network, First parameter includes：International mobile subscriber identity IMSI or network access Identifier NAI, media access control MAC Location；

First parameter carrying is sent to the second network in the first switching request, so that second network is according to institute It states the first parameter and determines the key parameter for accessing second network；

The first handoff response that second network is sent is received, the key parameter is carried in first handoff response；

The carrying of second parameter is sent to the terminal in the second handoff response or switching command, second parameter includes The target SSID and the key parameter, so that the terminal is switched to institute according to second parameter from the first network The second network is stated, after being switched to second network, the data of terminal are by the first network, second forwarded To local gateway.

2. according to the method described in claim 1, it is characterized in that, the first network is third generation partner program 3GPP Network, second network are WLAN WLAN.

3. according to the method described in claim 2, it is characterized in that, first parameter for obtaining terminal and the terminal Destination service set identifier SSID, including：

Receive switching from the first network to the second switching request of second network, described second for the terminal transmission First parameter is carried in request, obtains first parameter in second switching request；Obtain the target SSID；

Second handoff response is sent to the terminal, second parameter is carried in second handoff response, it is described Second parameter includes the target SSID and the key parameter.

4. according to the method described in claim 3, it is characterized in that, described obtain the target SSID, including：

According to preset SSID, the target SSID is determined；Alternatively,

If second switching request further includes WLAN measurement reports, and the WLAN measurement reports include SSID and described The corresponding signal strengths of SSID, then according in the WLAN measurement reports the SSID and the corresponding signals of the SSID it is strong Degree, determines the target SSID.

5. according to the method described in claim 2, it is characterized in that, first parameter for obtaining terminal and the terminal Destination service set identifier SSID, including：

Receive the WLAN measurement reports that the terminal is sent, the WLAN measurement reports include first parameter, SSID and The corresponding signal strength of the SSID；

Obtain first parameter in the WLAN measurement reports, and according to the SSID in the WLAN measurement reports with And the corresponding signal strength of the SSID, determine the target SSID；

The switching command is sent to the terminal, second parameter, second parameter are carried in the switching command Including the target SSID and the key parameter.

6. method according to claim 4 or 5, which is characterized in that the WLAN measurement reports further include elementary object clothes Business set identifier BSSID and the corresponding signal strengths of the BSSID, the method further include：

Wherein, second parameter further includes the target BSSID so that the terminal according to second parameter from described First network is switched to the access point of the target BSSID instructions under target SSID described in second network.

7. according to claim 1-5 any one of them methods, which is characterized in that the method further includes：

The third parameter of the terminal is obtained, the third parameter includes cell-of-origin mark ID or quality of service Qos information；

Third parameter carrying is sent to second network in first switching request, so that second net Network determines whether that the terminal is switched to second network from the first network according to the third parameter.

8. a kind of method for switching network, which is characterized in that including：

By the Target cell ID carrying the second network is sent in the first switching request so that second network according to The Target cell ID determines the radio bearer RB reconfiguration parameters for accessing second network；

The first handoff response that second network is sent is received, carrying the RB in first handoff response reconfigures ginseng Number；

Second parameter is carried and is sent to the terminal in the second handoff response or switching command, second parameter includes institute Target cell ID and the RB reconfiguration parameters are stated, so that the terminal is cut according to second parameter from the first network Change to second network.

9. according to the method described in claim 8, it is characterized in that, the first network is WLAN WLAN, described the Two networks are third generation partner program 3GPP networks.

10. according to the method described in claim 9, it is characterized in that, it is described obtain terminal the first parameter, including：

11. according to the method described in claim 10, it is characterized in that, second switching request, which further includes 3GPP, measures report It accuses, the 3GPP measurement reports include the signal of the neighboring community ID and the neighboring community of Service Access Point where the terminal Intensity；According to the signal strength of the neighboring community ID and the neighboring community, the Target cell ID is determined.

12. according to the method described in claim 9, it is characterized in that, it is described obtain terminal the first parameter, including：

The 3GPP measurement reports that the terminal is sent are received, the 3GPP measurement reports include service access where the terminal The signal strength of the neighboring community ID and the neighboring community of point；According to the signal of the neighboring community ID and the neighboring community Intensity determines the Target cell ID；

13. according to claim 8-12 any one of them methods, which is characterized in that the method further includes：

The third parameter of the terminal is obtained, the third parameter includes international mobile subscriber identity IMSI or service quality Qos；

14. a kind of network switching device, which is characterized in that including：

Acquiring unit, the destination service set identifier SSID of the first parameter and the terminal for obtaining terminal, the terminal Positioned at first network, first parameter includes：International mobile subscriber identity IMSI or network access Identifier NAI, media Access control MAC address；

Transmission unit, first parameter carrying for obtaining the acquiring unit are sent to the in the first switching request Two networks, so that second network determines the key parameter for accessing second network according to first parameter；

Receiving unit, the first handoff response sent for receiving second network carry institute in first handoff response State key parameter；

The transmission unit is additionally operable to the second parameter carrying being sent to the end in the second handoff response or switching command End, second parameter includes the key parameter that the target SSID and the receiving unit receive, so as to the terminal It is switched to second network from the first network according to second parameter, after being switched to second network, eventually The data at end are by the first network, second forwarded to local gateway.

15. device according to claim 14, which is characterized in that the first network is third generation partner program 3GPP networks, second network are WLAN WLAN.

16. device according to claim 15, which is characterized in that the acquiring unit specifically includes：First receives mould Block, the first acquisition module and the second acquisition module；

First receiving module, second from the first network to second network sent for receiving the terminal Switching request carries first parameter in second switching request；

Second acquisition module is additionally operable to obtain the target SSID；

The transmission unit, specifically for second handoff response is sent to the terminal, in second handoff response Second parameter is carried, second parameter includes the target SSID and the key parameter.

17. device according to claim 16, which is characterized in that second acquisition module is specifically used for：

According to preset SSID, the target SSID is determined；Alternatively,

18. device according to claim 15, which is characterized in that the acquiring unit specifically includes：Second receiving module, Third acquisition module and determining module；

Second receiving module, the WLAN measurement reports sent for receiving the terminal are wrapped in the WLAN measurement reports Include first parameter, SSID and the corresponding signal strengths of the SSID；

The determining module, for according in the WLAN measurement reports the SSID and the corresponding signals of the SSID it is strong Degree, determines the target SSID；

The transmission unit, carried specifically for the switching command is sent to the terminal, in the switching command described in Second parameter, second parameter include the target SSID and the key parameter.

19. the device according to claim 17 or 18, which is characterized in that the WLAN measurement reports further include elementary object Service set BSSID and the corresponding signal strengths of the BSSID, the second acquisition module are additionally operable to according to the BSSID and institute The corresponding signal strengths of BSSID are stated, determine target BSSID；

20. according to claim 14-18 any one of them devices, which is characterized in that

The acquiring unit, is additionally operable to obtain the third parameter of the terminal, the third parameter include cell-of-origin mark ID or Person's quality of service Qos information；

The transmission unit is additionally operable to third parameter carrying being sent to second net in first switching request Network, so that second network determines whether that the terminal is switched to from the first network according to the third parameter Second network.

21. a kind of network switching device, which is characterized in that including：

Acquiring unit, the first parameter for obtaining terminal, the terminal are located at first network, and first parameter includes target Cell ID ID；

Transmission unit, the Target cell ID carryings for obtaining the acquiring unit are sent in the first switching request Second network, so that second network determines the radio bearer RB for accessing second network according to the Target cell ID Reconfiguration parameters；

Receiving unit, the first handoff response sent for receiving second network carry institute in first handoff response State RB reconfiguration parameters；

The transmission unit is additionally operable to the second parameter carrying being sent to the end in the second handoff response or switching command End, second parameter include the RB reconfiguration parameters that the Target cell ID and the receiving unit receive, so as to The terminal is switched to second network according to second parameter from the first network.

22. device according to claim 21, which is characterized in that the first network is WLAN WLAN, described Second network is third generation partner program 3GPP networks.

23. device according to claim 22, which is characterized in that the acquiring unit, including：

First receiving module, the second switching from the first network to second network sent for receiving the terminal Request；

First determining module, for according to second switching request and preset cell ID, determining the Target cell ID；

The transmission unit is additionally operable to second handoff response being sent to the terminal, be taken in second handoff response With second parameter.

24. device according to claim 23, which is characterized in that second switching request further includes that 3GPP measures report It accuses, the 3GPP measurement reports include the signal of the neighboring community ID and the neighboring community of Service Access Point where the terminal Intensity；First determining module is additionally operable to, according to the signal strength of the neighboring community ID and the neighboring community, determine institute State Target cell ID.

25. device according to claim 22, which is characterized in that the acquiring unit specifically includes：Second receiving module With the second determining module；

Second receiving module, the 3GPP measurement reports sent for receiving the terminal are wrapped in the 3GPP measurement reports The signal strength of the neighboring community ID and the neighboring community of Service Access Point where including the terminal；

Second determining module, described according to the signal strength of the neighboring community ID and the neighboring community, determining Target cell ID；

The transmission unit, carried specifically for the switching command is sent to the terminal, in the switching command described in Second parameter.

26. according to claim 21-25 any one of them devices, which is characterized in that

The acquiring unit is additionally operable to obtain the third parameter of the terminal, and the third parameter includes that international mobile subscriber is known Other code IMSI or quality of service Qos；