WO2015089849A1

WO2015089849A1 - Method and apparatus for network switching

Info

Publication number: WO2015089849A1
Application number: PCT/CN2013/090160
Authority: WO
Inventors: 吴健
Original assignee: 华为技术有限公司
Priority date: 2013-12-16
Filing date: 2013-12-20
Publication date: 2015-06-25
Also published as: CN104717709A; CN104717709B

Abstract

Disclosed are a method and apparatus for network switching, which relate to the technical field of networks, can solve problems of relatively low usability and a signalling storm resulting from network distribution performed by using a WLAN, and reduce the processing stress of a mobile terminal and a network side and reduce the docking between network devices. The embodiments of the present invention can acquire a first parameter of a terminal and a target service set identifier (SSID) of the terminal, and carry the first parameter in a first switching request to be sent to a second network so that the second network determines a key parameter of accessing the second network according to the first parameter. Then, a first switching response carrying the key parameter and sent by the second network is received, and the target SSID and the key parameter are carried in a second switching response or a switching command to be sent to the terminal so that the terminal can be switched from a first network to the second network according to the target SSID and the key parameter. The solution provided in the embodiments of the present invention is applicable to network switching.

Description

Network switching method and device

This application claims priority to Chinese Patent Application No. 2 01 31 0692692. 6 , which is entitled "A Network Switching Method and Apparatus", which is filed on January 1, 2006. The entire contents are incorporated herein by reference. Technical field

The present invention relates to the field of network technologies, and in particular, to a network switching method and apparatus. Background technique

With the development of the network, the use of mobile broadband has also grown rapidly, and the rapid growth of mobile broadband usage has caused network congestion. In order to solve the problem of network congestion, operators have invested in the establishment of a wireless local area network (WLAN) to enable the WLAN to function as a network to reduce the load on the mobile network. Since each WLAN has its own coverage, users can use this network when the user is within a certain WLAN coverage. When the user moves out of the network coverage, the network cannot be searched.

However, when using WLAN for offloading, when users search for available WLANs, they will find that most of the WLANs have keys, so the terminal is from the 3rd Generation Partnership Project (The 3rd Generation Par tner shi p Proj ec t, 3GPP) If the network is switched to the WLAN and the authentication is required, the user cannot enter the WLAN, which makes the WLAN easy to use. In addition, the frequent attempts of the user to access the WLAN may cause signaling storms.

At the same time, when the terminal has access to the WLAN and is within the same coverage range of the 3GPP network and the WLAN, when the signal strength of the WLAN is too weak, the terminal will actively switch to the 3GPP network when the terminal is not connected to the WLAN. However, in the process of the terminal switching from the WLAN to the 3GPP network, the continuity of the communication service will be blocked. Summary of the invention

The embodiment of the present invention provides a network switching method and apparatus, which can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading in the process of switching a terminal from a 3GPP network to a WLAN; Adopt another network switching method and device, in the terminal from the WLAN In the process of switching to the 3GPP network, the continuity of the communication service can be guaranteed.

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

Obtaining a first parameter of the terminal and a target service set identifier SSID of the terminal, where the terminal is located in the first network, where the first parameter includes: an international mobile subscriber identity IMSI or a network access identifier NAI, and a media access control MAC Address

And transmitting, by the first parameter, the first parameter to the second network, so that the second network determines, according to the first parameter, a key parameter that is used to access the second network;

Receiving a first handover response sent by the second network, where the first handover response carries the key parameter;

Transmitting the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the key parameter, so that the terminal is from the second parameter according to the second parameter The first network switches to the second network.

In a first possible implementation, in combination with the first aspect, the first network is a third generation partner plan 3GPP network, and the second network is a wireless local area network WLAN.

In a second possible implementation manner, in combination with the first possible implementation manner of the first aspect, the acquiring the first parameter of the terminal and the target service set identifier SSID of the terminal includes:

Receiving, by the terminal, a second handover request from the first network to the second network, where the second handover request carries the first parameter, and acquiring the first part of the second handover request a parameter; obtaining the target SSID;

The sending the second parameter to the terminal in the second handover response or the handover command includes:

Transmitting the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the key parameter.

In a third possible implementation manner, in combination with the second possible implementation manner in the foregoing aspect, the obtaining the target SS ID includes:

Determining the target SSID according to a preset SSID; or

If the second handover request further includes a WLAN measurement report, and the WLAN measurement report is included in the packet Including the SS ID and the signal strength corresponding to the SS ID, the target SSID is determined according to the SS ID in the WLAN measurement report and the signal strength corresponding to the SSID.

In a fourth possible implementation, in combination with the first possible implementation manner of the first aspect, the acquiring the first parameter of the terminal and the target service set identifier SSID of the terminal includes:

Receiving a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the signal strength corresponding to the first parameter, the SSID, and the SSID;

Obtaining the first parameter in the WLAN measurement report, and determining the target SSID according to the SSID in the WLAN measurement report and a signal strength corresponding to the SSID;

Transmitting the handover command to the terminal, where the handover command carries the second parameter, where the second parameter includes the target SSID and the key parameter.

In a fifth possible implementation manner, the WLAN measurement report further includes a basic target service set identifier BSSID and the BSS ID corresponding to the third possible implementation manner or the fourth possible implementation manner in the first aspect. Signal strength, the method further includes:

Determining a target BSSID according to the BSSID and a signal strength corresponding to the BSSID;

The second parameter further includes the target BSSID, so that the terminal switches from the first network to the target BSSID indication under the target SS ID in the second network according to the second parameter. Access point.

In a sixth possible implementation, in combination with the first aspect and any one of the possible implementations of the first aspect, the method further includes:

Obtaining a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a service quality Qos information;

Transmitting the third parameter to the second network in the first handover request, so that the second network determines, according to the third parameter, whether to allow the terminal to switch from the first network to The second network.

In a second aspect, an embodiment of the present invention provides a network switching method, including: Obtaining a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID;

Transmitting the target cell ID in the first handover request to the second network, so that the second network determines, according to the target cell ID, radio bearer RB reconfiguration accessing the second network to receive the a first handover response sent by the network, where the first handover response carries the RB reconfiguration parameter;

Carrying the second parameter in the second handover response or the handover command is sent to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration parameter, so that the terminal obtains the second parameter according to the second parameter The first network switches to the second network.

In a first possible implementation, in combination with the second aspect, the first network is a wireless local area network (WLAN), and the second network is a third generation partnership plan 3GPP network.

In a second possible implementation manner, in combination with the first possible implementation manner of the second aspect, the acquiring the first parameter of the terminal includes:

Receiving, by the terminal, a second handover request from the first network to the second network; determining, according to the second handover request and a preset cell ID, the target cell ID;

And sending, by the second parameter, the second handover response or the handover command to the terminal, where:

Sending the second handover response to the terminal, where the second handover response carries the second parameter.

In a third possible implementation manner, in combination with the second possible implementation manner of the second aspect, the second handover request further includes a 3GPP measurement report, where the 3GPP measurement report includes a service access point where the terminal is located. a neighboring cell ID and a signal strength of the neighboring cell; determining the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.

In a fourth possible implementation manner, in combination with the first possible implementation manner of the second aspect, the acquiring the first parameter of the terminal includes:

Receiving a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes the end a neighboring cell ID of the serving access point and a signal strength of the neighboring cell; determining the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell;

Sending the handover command to the terminal, where the handover command carries the second parameter. In a fifth possible implementation, in combination with the second aspect and the possible implementation manner of the second aspect, the method further includes:

Obtaining a third parameter of the terminal, where the third parameter includes an International Mobile Subscriber Identity (IMSSI) or a quality of service Qos;

In a third aspect, an embodiment of the present invention provides a network switching apparatus, including:

An acquiring unit, configured to acquire a first parameter of the terminal, and a target service set identifier SSID of the terminal, where the terminal is located in the first network, where the first parameter includes: an international mobile subscriber identity IMSI or a network access identifier NAI, Media access control MAC address;

a sending unit, configured to send the first parameter acquired by the acquiring unit to the second network in the first switching request, so that the second network determines to access the second according to the first parameter Key parameter of the network;

a receiving unit, configured to receive a first handover response sent by the second network, where the first handover response carries the key parameter;

The sending unit is further configured to: send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the key parameter received by the receiving unit So that the terminal switches from the first network to the second network according to the second parameter.

In a first possible implementation, in combination with the third aspect, the first network is a 3rd Generation Partnership Project 3GPP network, and the second network is a wireless local area network WLAN. In a second possible implementation, in combination with the first possible implementation manner of the third aspect, the acquiring unit includes: a first receiving module, a first acquiring module, and a second acquiring module; a receiving module, configured to receive a second handover request that is sent by the terminal from the first network to the second network, where the second handover request carries the first parameter;

The first acquiring module is configured to acquire the first parameter in the second switching request, and the second acquiring module is further configured to acquire the target SS ID.

The sending unit is specifically configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the key parameter.

In a third possible implementation manner, in combination with the second possible implementation manner of the third aspect, the second acquiring module is specifically configured to:

Determining the target SSID according to a preset SSID; or

If the second handover request further includes a WLAN measurement report, and the WLAN measurement report includes an SS ID and a signal strength corresponding to the SS ID, according to the SS ID and the SSID in the WLAN measurement report. The corresponding signal strength determines the target SSID.

In a fourth possible implementation manner, in combination with the first possible implementation manner of the third aspect, the acquiring unit specifically includes: a second receiving module, a third obtaining module, and a determining module;

The second receiving module is configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the signal strength corresponding to the first parameter, the SSID, and the SSID;

The third acquiring module is configured to acquire the first parameter in the WLAN measurement report, where the determining module is configured to: according to the SSID in the WLAN measurement report and a signal strength corresponding to the SSID, Determining the target SSID;

The sending unit is specifically configured to send the handover command to the terminal, where the switching command carries the second parameter, where the second parameter includes the target SSID and the key parameter.

In a fifth possible implementation, the WLAN measurement report further includes a basic target service set identifier BSSID and the BSSID corresponding to the third possible implementation manner or the fourth possible implementation manner of the third aspect. Signal strength, the second obtaining module is further configured to use the BSSID according to the BSSID Determining a target BSSID with a signal strength corresponding to the BSS ID;

In a sixth possible implementation, in combination with the third aspect and any possible implementation of the third aspect,

The acquiring unit is further configured to acquire a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a service quality Qos information;

The sending unit is further configured to send the third parameter to the second network in the first handover request, so that the second network determines whether to allow the terminal according to the third parameter. Switching from the first network to the second network.

A fourth aspect of the present invention provides a network switching apparatus, including:

An acquiring unit, configured to acquire a first parameter of the terminal, where the terminal is located in the first network, where the first parameter includes a target cell identifier ID;

a sending unit, configured to send the target cell ID acquired by the acquiring unit to the second network in a first handover request, so that the second network determines to access the second according to the target cell ID The history of radio bearer RB reconfiguration of the network;

a receiving unit, configured to receive a first handover response sent by the second network, where the first handover response carries the RB reconfiguration parameter;

The sending unit is further configured to: send the second parameter in the second handover response or the handover command to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration received by the receiving unit a parameter, such that the terminal switches from the first network to the second network according to the second parameter.

In a first possible implementation, in combination with the fourth aspect, the first network is a wireless local area network (WLAN), and the second network is a third generation partnership plan 3GPP network.

In a second possible implementation manner, in combination with the first possible implementation manner of the fourth aspect, the acquiring unit includes: a first receiving module, configured to receive a second handover request sent by the terminal from the first network to the second network;

a first determining module, configured to determine, according to the second handover request and a preset cell ID, the target cell ID;

The sending unit is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.

In a third possible implementation manner, in combination with the second possible implementation manner of the fourth aspect, the second handover request further includes a 3GPP measurement report, where the 3GPP measurement report includes a service access point where the terminal is located. a neighboring cell ID and a signal strength of the neighboring cell; the first determining module is further configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.

In a fourth possible implementation manner, in combination with the first possible implementation manner of the fourth aspect, the acquiring unit specifically includes: a second receiving module and a second determining module;

The second receiving module is configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.

The second determining module is configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell;

The sending unit is specifically configured to send the switching command to the terminal, where the switching command carries the second parameter.

In a fifth possible implementation, in combination with the fourth aspect and any possible implementation of the fourth aspect,

The acquiring unit is further configured to acquire a third parameter of the terminal, where the third parameter includes an international mobile subscriber identity code IMSI or a service quality Qos;

The sending unit is further configured to send the third parameter to the second network in the first handover request, so that the second network determines whether to allow the terminal according to the third parameter. Switching from the first network to the second network. The network switching method and device provided by the embodiment of the present invention can obtain the first parameter of the terminal and the target service set identifier SSID of the terminal, and carry the first parameter in the first handover request and send the message to the second network, so that The second network determines a key parameter for accessing the second network according to the first parameter. And receiving the first handover response of the carrying key parameter sent by the second network, and carrying the target SSID and the key parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target SS ID and the key parameter. Switching from the first network to the second network, when the user searches for an available WLAN network in the prior art, most of the WLAN networks are found to have a key, and the user cannot enter the WLAN network, so that the WLAN network The ease of use is very low, and the solution provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading. The problem is, and the processing pressure on the mobile terminal and the network side is reduced, and the docking between the network devices is reduced.

The network switching method and device provided by the embodiment of the present invention can obtain the first parameter of the terminal, where the first parameter includes the target cell ID, and the target cell ID is carried in the first handover request and sent to the second network. So that the second network determines an RB reconfiguration parameter for accessing the second network according to the target cell ID. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and The RB reconfiguration parameter is switched from the first network to the second network, and in the prior art, when the terminal switches from the WLAN to the 3GPP network, the continuity of the communication service is blocked, and the embodiment of the present invention can ensure communication. Business continuity. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a flowchart of a network switching method according to an embodiment of the present invention;

FIG. 2 is a flowchart of another network switching method according to another embodiment of the present invention; FIG. 3 is a flowchart of another network switching method according to another embodiment of the present invention; FIG. 4 is a flowchart of another network switching method according to another embodiment of the present invention; FIG. 5 is a flowchart of another network switching method according to another embodiment of the present invention; FIG. A block diagram of a network switching device provided by the example;

FIG. 7 is a block diagram of another network switching apparatus according to another embodiment of the present invention; FIG. 8 is a block diagram of another network switching apparatus according to another embodiment of the present invention; FIG. 9 is another embodiment of the present invention. FIG. 10 is a block diagram of another network switching apparatus according to another embodiment of the present invention; FIG. 11 is a block diagram of another network switching apparatus according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The switching module in the embodiments of the present invention may be an independent device, or may be integrated into a wireless local area network (WLAN) or an existing network element of the 3rd Generation Partnership Project (3GPP) network. Among them, such as Access Control (AC), Radio Network Controller (RNC), and Base Station Controller (BSC).

The embodiment of the present invention provides a network switching method. The application scenario of the method is to switch the terminal from the 3GPP network to the WLAN. The execution entity of the method is a switching module. As shown in FIG. 1, the method includes:

Step 101: Acquire a first parameter of the terminal and a Service Set Identifier (SSID) of the terminal.

When the terminal is located in the first network, that is, the 3GPP network, if the terminal is switched from the 3GPP network to the WLAN, the terminal needs to send the first parameter to the switching module, and the first parameter includes: International Mobile Subscriber Identification Number (International Mobile Subscriber Identification Number) , IMSI) or Network Access Identifier (NAI), Media Access Control (Media) If the terminal sends the WLAN measurement report to the switching module, the switching module may determine that the signal strength is the strongest according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID. The SSID is the target SSID, or the SSID that exceeds the set access signal strength threshold is determined as the target SSID.

If the terminal does not send the WLAN measurement report to the handover module while transmitting the first parameter to the handover module, the handover module uses the preset SSID as the target SSID. The default SSID refers to the service set identifier pre-set by the network administrator according to the requirements. The SSID can be China Mobi le (CM) or China Unicom (CU). limited.

Step 102: The first port is sent to the second network in the first handover request, so that the second network determines the key parameter of accessing the second network according to the first rule.

The second network in this step is a WLAN, and the first handover request is a handover request from the 3GPP network to the WLAN. After the first module obtains the first parameter, the first parameter is sent to the WLAN in the first handover request, so that the WLAN obtains the key parameter of accessing the WLAN according to the IMSI or the NAI and the MAC address in the first parameter, for example, The key parameter may be a pairwise master key security association (Pay rsi se Mas ter Key Security As Soc ia t ion, PMKSA).

It should be noted that the IMSI or the NAI in the first parameter may exist at the same time, or only one of them may exist, which has no effect on the WLAN acquiring the key parameter of accessing the WLAN.

Step 103: Receive a first handover response sent by the second network, where the first handover response carries a key. In the step, the first handover response is a handover response from the 3GPP network to the WLAN. After the WLAN obtains the key parameter for accessing the WLAN, the WLAN sends a first handover response to the handover module, and the acquired key parameters are carried in the first handover response and sent to the handover module.

Step 104: The second parameter is sent to the terminal in the second handover response or the handover command, where the second parameter includes the target SS ID and the key parameter, so that the terminal switches from the first network to the second network according to the second parameter.

In this step, when the first handover request initiated by the terminal, the handover module obtains the WLAN transmission. After the first handover response is sent, the second handover response carrying the second parameter is sent to the terminal; when the first handover request initiated by the handover module is obtained, the handover module carries the first The two-parameter switching command is sent to the terminal.

The switching module sends the received key parameter of the WLAN to the target SSID obtained in step 101, and forms a second parameter, and carries the second parameter in the second handover response or the handover command, and sends the parameter to the terminal. So that the terminal switches from the 3GPP network to the WLAN according to the second parameter.

The network switching method provided by the embodiment of the present invention can obtain the first parameter of the terminal and the target service set identifier SSID of the terminal, and carry the first parameter in the first handover request and send the second parameter to the second network, so that the second network is configured according to the second network. The first parameter determines a key parameter to access the second network. And receiving the first handover response of the carrying key parameter sent by the second network, and carrying the target SSID and the key parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target SSID and the key parameter. The first network is switched to the second network, which can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices. An embodiment of the present invention provides a network switching method. The application scenario of the method is to switch a terminal from a 3GPP network to a WLAN. As shown in FIG. 2, the method includes:

Step 201: The switching module receives a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the first parameter and the third parameter.

It should be noted that the terminal should be connected to the first network before performing step 201.

This step is for the terminal to initiate the handover of the terminal from the first network to the second network, where the first network is a 3GPP network and the second network is a WLAN.

When the terminal is located in the 3GPP network, if the terminal is switched from the 3GPP network to the WLAN, the terminal needs to send the first parameter and the third parameter to the handover module, where the first parameter includes the IMSI or the NAI, the MAC address; the third parameter includes the source cell. Identity (ID) or Qualitative Service (QoS) information.

Optionally, when the terminal sends the first parameter and the third parameter to the switching module, The WLAN measurement report is sent to the switching module, and the WLAN measurement report includes the SSID and the signal strength corresponding to the SSID.

Step 202: The switching module receives the WLAN measurement report sent by the terminal, where the WLAN measurement report includes a first parameter, an SSID, and a signal strength corresponding to the SSID and a third parameter.

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

This step is to switch the terminal from the first network to the second network initiated by the switching module. When the terminal is in the first network, that is, the 3GPP network, if the switching module considers that the terminal needs to be switched from the 3GPP network to the WLAN, the terminal sends a WLAN measurement report to the switching module, and the 3GPP measurement report includes the first parameter, the first parameter. The three parameters and the signal strength corresponding to the SSID and the SSID.

Optionally, the WLAN measurement report further includes a basic service set identifier (BSSID) and a signal strength corresponding to the BSSID.

Step 201 and step 202 are two parallel steps for obtaining two different manners of the first parameter, the third parameter, and the target SSID of the terminal. The step 201 may be performed only when the first parameter, the third parameter, and the target SSID of the terminal are acquired, or only step 202 is performed. Step 202 in the figure is indicated by a dashed box to illustrate step 202 as an optional step; of course, step 201 can also be represented by a dashed box.

Step 203: The switching module acquires the first parameter, the third parameter, and the target SSID of the terminal. If the terminal initiates the handover of the terminal from the first network to the second network, if the second handover request carries the first parameter and the third parameter, the second handover request triggers the handover module to acquire the preset SSID, the preset SSID. It is a service set identifier that is preset by the network administrator according to requirements. The SSID can be either CM or CU. This solution is not specifically limited.

In the case that the WLAN measurement report is also carried in the second handover request, the SSID with the strongest signal strength is determined as the target SSID according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID, or the determined connection is exceeded. The SSID of the incoming signal strength threshold is the target SSID.

If the switching module initiates to switch the terminal from the first network to the second network, the switching module obtains the first parameter, the first parameter, the third parameter, and the SSID and the signal strength corresponding to the SSID in the WLAN measurement report sent by the terminal; The third parameter and the target SSID. Optionally, when the BSSID and the signal strength corresponding to the BSSID are further included in the WLAN measurement report, the target BSSID may be determined according to the BSS ID and the signal strength corresponding to the BSSID. For example, the BSSID with the strongest signal strength can be selected as the target BSS ID, which is not limited herein.

Step 204: The switching module sends the first parameter and the third parameter to the second network in the first handover request.

Step 205: The second network determines, according to the third parameter, whether the terminal is allowed to switch from the first network to the second network.

In this step, the third parameter includes a source cell ID or QoS information.

The switching module compares the received source cell ID with a preset cell ID to determine whether to allow the terminal to switch from the first network to the second network. For example, the pre-set cell in the handover module is ID1, and if the received source cell is ID1, the terminal is allowed to switch from the first network to the second network; if the received source cell ID is ID2 or ID3, then The terminal is allowed to switch from the first network to the second network.

The switching module determines whether to allow the terminal to switch from the first network to the second network according to the received QoS information. For example, the QoS information received by the switching module indicates that the terminal has continuity of services, such as downloading video, etc., to allow the terminal to switch from the first network to the second network; if the QoS information indicates that the terminal is browsing the webpage, The terminal is not allowed to switch from the first network to the second network.

It should be noted that the source cell ID or QoS information may exist at the same time, or any parameter may exist. When the second network determines that the terminal is allowed to switch from the first network to the second network according to the third parameter, step 206 is performed, when the second network determines, according to the third parameter, that the terminal is not allowed to switch from the first network to the second When the network is over, the process ends.

Step 206: The second network determines a key parameter for accessing the second network according to the first parameter.

In this step, the second network determines a key parameter for accessing the second network according to the first parameter, and the key parameter may be PMKSA.

Step 207: The second network sends a first handover response carrying the key parameter to the handover module. The first handover response is a handover response of the terminal from the 3GPP network to the WLAN. After the second network obtains the key parameter, the key parameter is carried in the first handover response to send the handover module. Step 208: The switching module receives the first handover response sent by the second network, and sends the second parameter to the terminal in the second handover response or the handover command.

The second parameter includes the key parameter and the target SSID.

Optionally, if the switching module obtains the target BSSID according to the BSS ID in the WLAN measurement report and the signal strength corresponding to the BSSID, the second parameter further includes the target BSSID.

Step 209: The terminal switches from the first network to the second network according to the second parameter.

In this step, the terminal switches from the first network to the second network according to the key parameter in the second and the target SSID.

Optionally, if the target BSSID is further included in the second parameter, the terminal switches from the first network to the access point indicated by the target BSSID in the target SSID in the second network according to the second parameter.

Further, as shown in FIG. 3, in the process of the terminal switching from the 3GPP network to the WLAN, in order to ensure service continuity in the terminal handover process, the method further includes:

Step 210: The first network sends an access request message to the local gateway, where the access request message carries a Public Land Mobile Network (PLMN) ID, a cell ID, and a terminal IMSI or NAI.

In this step, the first network is a 3GPP network.

Step 211: The local gateway sends a consent access message to the first network, and the access message carries an Internet Protocol (IP) address, a virtual local area network (VLAN), or a tunnel information.

In this step, the local gateway allocates tunnel information, such as IP address, VLAN or tunnel information, from the 3GPP network to the local gateway according to the received parameters, such as the PLMN ID, the cell ID, and the terminal IMSI or NAI. So that the 3GPP network and the local gateway can transmit data through the tunnel.

Step 212: The first network forwards the data of the terminal to the local gateway, and the local gateway forwards the received terminal data to the first network.

Optionally, in step 210 to step 212, the first network currently accessed by the terminal sends information about the service data of the terminal to the local gateway, so that the local gateway saves the information, so that the terminal moves and cuts. After switching to the second network, the second network may send information such as service data after the terminal accesses the second network to the local gateway, so that service continuity of the terminal can be implemented. After step 212, step 201 - step 209 is performed. As shown in FIG. 3, in order to make the drawing clear, the dotted line box indicates that step 201 - step 209 is performed. For details, refer to the description of FIG. 2, and no longer - Narration. After the step 201-209, that is, after the terminal switches from the first network to the second network, for example, after the terminal switches from the 3GPP network to the WLAN, the method further includes:

Step 213: The second network sends an access request message to the local gateway, where the access request message carries an SSID, a BSSID, a terminal IMSI or a NAI, a terminal MAC address, and a handover indication.

The second network in this step is a WLAN.

Step 214: The local gateway sends a consent access message to the second network, and carries an IP address, a VLAN, or a tunnel information.

Step 215: The second network forwards the data of the terminal to the local gateway, and the local gateway forwards the received terminal data to the second network.

It should be noted that the data of the terminal in this step is the same as the data of the terminal in step 212.

Further, the key parameter can be obtained through the 802.IX Authent authentication process in the prior art, and then the 3GPP network to the WLAN is switched according to the 3GPP network to WLAN handover procedure, and the 3GPP network to the WLAN can also be used according to the 3GPP network to the WLAN. The process of service continuity in the handover process completes the service continuity of the terminal switching from the 3GPP network to the WLAN.

Further, the handover of the terminal from the 3GPP network to the WLAN can be completed by using the 802.11r fast handover procedure in the prior art, and then the service continuity of the terminal handover process is ensured by using step 210-step 215 in FIG.

The network switching method provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices. Moreover, when the second parameter further includes the BSSID, the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter. At the same time, after the network handover is completed, the first network access network and the second network are The access network forwards the data of the terminal to the local gateway, which can ensure the service continuity of the first network to the second network. An embodiment of the present invention provides a network switching method, where an application scenario of the method is to

The WLAN switches to the 3GPP network. As shown in FIG. 4, the method includes:

Step 401: Obtain a first parameter of the terminal.

When the terminal is located in the first network, that is, the WLAN network, if the terminal is switched from the WLAN to the 3GPP network, the switching module needs to acquire the first parameter, where the first parameter includes the target cell ID.

If the terminal sends a request for switching from the WLAN to the 3GPP network to the switching module, carrying the 3GPP measurement report to the handover module, the handover module according to the neighboring cell ID of the serving access point where the terminal is located in the 3GPP measurement report, and the neighboring The signal strength of the cell can determine that the cell ID with the strongest signal strength is the target cell ID.

If the terminal sends a request for switching from the WLAN to the 3GPP network to the switching module, and does not carry the 3GPP measurement report to the switching module, the switching module uses the preset cell ID as the target cell ID.

Step 402: The target cell ID is carried in the first handover request and sent to the second network, so that the second network determines the radio bearer (Radio Bear, RB) reconfiguration parameter of the second network according to the target cell ID.

In this step, the second network is a 3GPP network, and the first handover request is a handover request from the WLAN to the 3GPP network. After the switching module obtains the first parameter, the target cell ID in the first parameter is carried in the first handover request and sent to the 3GPP network, so that the 3GPP network obtains the RB reconfiguration parameter of accessing the 3GPP network according to the target cell ID.

Step 403: Receive a first handover response sent by the second network, where the first handover response carries the RB reconfiguration parameter.

In this step, the first handover response is a handover response from the WLAN to the 3GPP network. After the GPP reconfiguration parameter of the 3GPP network is obtained, the 3GPP network sends the first handover response to the handover module, and the acquired RB reconfiguration parameter is carried in the first handover response and sent to the handover module.

Step 404: Carry the second parameter in the second handover response or the handover command is sent to the terminal, where The two parameters include a target cell ID and an RB reconfiguration parameter, so that the terminal switches from the first network to the second network according to the second parameter.

In this step, when the first handover request is initiated by the terminal, the handover module sends a second handover response carrying the second parameter to the terminal after obtaining the first handover response sent by the 3GPP network; when initiated by the handover module After the first handover request, the handover module sends a handover command carrying the second parameter to the terminal after obtaining the first handover response sent by the 3GPP.

The switching module sends the RB reconfiguration parameter sent by the 3GPP network to the target cell ID acquired in step 401, and constitutes a second parameter, and carries the second parameter in the second handover response or the handover command. To the terminal, so that the terminal switches from the WLAN to the 3GPP network according to the second parameter.

The network switching method provided by the embodiment of the present invention can obtain the target cell ID of the terminal, and the target cell ID is carried in the first handover request and sent to the second network, so that the second network determines to access the second network according to the target cell ID. RB reconfiguration parameters. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and The RB reconfiguration parameter is switched from the first network to the second network, and the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network can be ensured. The embodiment of the present invention provides a network switching method. The application scenario of the method is to switch the terminal from the WLAN to the 3GPP network. As shown in FIG. 5, the method includes:

Step 501: The switching module receives a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the third parameter.

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

This step is for the terminal to initiate the handover of the terminal from the first network to the second network, where the first network is a WLAN and the second network is a 3GPP network.

When the terminal is located in the WLAN, if the terminal is switched from the WLAN to the 3GPP network, the terminal needs to send the third parameter to the switching module, and the third parameter includes the IMSI or the Qos information. Optionally, when the terminal sends the third parameter to the switching module, the 3GPP measurement report may be sent to the handover module, where the 3GPP measurement report includes the neighbor cell ID of the serving access point where the terminal is located, and the signal strength of the neighboring cell. .

Step 502: The handover module receives a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a third parameter, a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.

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

This step is to switch the terminal from the first network to the second network initiated by the switching module. When the terminal is in the first network, that is, WLAN, if the switching module considers that the terminal needs to be handed over from the WLAN to the 3GPP network, the terminal sends a 3GPP measurement report to the switching module.

Step 501, step 502, for two parallel steps, only step 501 may be performed, or only step 502 may be performed. Step 502 in the figure is indicated by a dashed box to illustrate step 502 as an optional step; of course, step 501 can also be represented by a dashed box.

Step 503: The switching module acquires a third parameter of the terminal and a first parameter.

In this step, the first parameter includes a target cell ID.

If the terminal initiates the handover of the terminal from the first network to the second network, and the second handover request carries the third parameter, the second handover request triggers the handover module to acquire the preset cell ID as the target cell ID.

In the case that the second handover request further carries the 3GPP measurement report, the target cell ID is determined according to the neighbor cell ID of the serving access point where the terminal is located in the GPP measurement report and the signal strength of the neighboring cell.

If the switching module initiates to switch the terminal from the first network to the second network, the switching module according to the third parameter in the 3GPP measurement report sent by the terminal, the neighboring cell ID of the serving access point where the terminal is located, and the signal of the neighboring cell Intensity, obtain the third parameter and the target cell ID.

Step 504: The handover module sends the third parameter and the target cell ID in the first handover request to the second network.

Step 505: The second network determines, according to the third parameter, whether to allow the terminal to switch from the first network to the second network. In this step, the third parameter includes IMS I or Qos information.

It should be noted that IMSI or Qos information can exist at the same time, and any parameter can exist. When the second network determines, according to the third parameter, that the terminal is allowed to switch from the first network to the second network, step 506 is performed, when the second network determines, according to the third parameter, that the terminal is not allowed to switch from the first network to the second When the network is over, the process ends.

Step 506: The second network determines, according to the target cell ID, an RB reconfiguration parameter for accessing the second network. Step 507: The second network sends a first handover response carrying the RB reconfiguration parameter to the handover module.

Step 508: The switching module receives the first handover response sent by the second network, and sends the second parameter to the terminal in the second handover response or the handover command.

The second parameter includes an RB reconfiguration parameter and a target cell ID.

Step 509: The terminal switches from the first network to the second network according to the second parameter.

Further, in the process of the terminal switching from the WLAN to the 3GPP network, in order to ensure service continuity in the terminal switching process, the method further includes:

Steps 210 to 212 in FIG. 3 are performed first, and steps 501 to 509 are performed in step 212, and then steps 213 to 215 in FIG. 3 are performed.

The network switching method provided by the embodiment of the present invention can obtain the target cell ID of the terminal, and the target cell ID is carried in the first handover request and sent to the second network, so that the second network determines to access the second network according to the target cell ID. RB reconfiguration parameters. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and The RB reconfiguration parameter is switched from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network. The embodiment of the present invention provides a network switching apparatus. As shown in FIG. 6, the apparatus includes: an obtaining unit 601, a sending unit 602, and a receiving unit 603.

The obtaining unit 601 is configured to acquire a first parameter of the terminal and a target service set identifier of the terminal The SSID is located in the first network, and the first parameter includes: an International Mobile Subscriber Identity (IMSI) or a Network Access Identity (NAI), and a Media Access Control (MAC) address.

In this step, the first network is a 3GPP network.

The sending unit 602 is configured to carry the first parameter acquired by the acquiring unit 601 in a first handover request and send the second parameter to the second network, so that the second network determines to access the first parameter according to the first parameter. The key parameter of the second network.

In this step, the second network is a WLAN.

The receiving unit 603 is configured to receive a first handover response sent by the second network, where the first switching response carries the key parameter.

The sending unit 602 is further configured to: send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the secret received by the receiving unit 603 a key parameter, such that the terminal switches from the first network to the second network according to the second parameter.

Further, as shown in FIG. 7, the acquiring unit 601 specifically includes: a first receiving module 6011, a first acquiring module 6012, and a second acquiring module 6013.

The first receiving module 6011 is configured to receive a second handover request sent by the terminal from the first network to the second network, where the second handover request carries the first parameter.

The first obtaining module 6012 is configured to acquire the first parameter in the second switching request. The second obtaining module 6013 is further configured to acquire the target SS ID.

The sending unit 602 is specifically configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the secret Key parameter.

Further, the second acquiring module 6012 is specifically configured to determine the target SSID according to the preset SSID, or to: if the second handover request further includes a WLAN measurement report, and the WLAN measurement The report includes the SSID and the signal strength corresponding to the SSID, and determining the target SSID according to the SS ID in the WLAN measurement report and the signal strength corresponding to the SSID.

Further, the acquiring unit 601 specifically includes: a second receiving module 6014, The three acquisition module 6015 determines the module 6016.

The second receiving module 6014 is configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and a signal strength corresponding to the SSID.

The third acquisition block 6015 obtains the first parameter in the WLAN measurement report.

The determining module 6016 is configured to determine the target SSID according to the S S I D in the WL AN measurement report and the signal strength corresponding to the SSID.

The sending unit 602 is specifically configured to send the handover command to the terminal, where the handover command carries the second parameter, where the second parameter includes the target SSID and the key parameter.

Further, the WLAN measurement report further includes a basic target service set identifier BSSID and a signal strength corresponding to the BSSID, and the second obtaining module 6013 is further configured to: according to the BSSID and the signal corresponding to the BSS ID Intensity, determine the target BS SID.

Further, the acquiring unit 601 is further configured to acquire a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a service quality Qos information;

The sending unit 602 is further configured to: send the third parameter to the second network in the first switching request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.

It should be noted that, in the apparatus shown in FIG. 6 and FIG. 7, the specific implementation process of each module and the information interaction between the modules, etc., may be referred to as a method according to the same inventive concept as the method embodiment of the present invention. The embodiment is not described here.

The network switching device provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices. Moreover, when the second parameter further includes the BSSID, the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter. At the same time, after the network handover is completed, the first network access network and the second network are The access network forwards the data of the terminal to the local gateway, which can ensure the service continuity of the first network to the second network. The embodiment of the invention provides a network switching device. As shown in FIG. 8, the device includes: an obtaining unit 801, a sending unit 802, and a receiving unit 803.

The obtaining unit 801 is configured to acquire a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID.

In this step, the first network is a WLAN.

The sending unit 802 is configured to: carry the target cell ID acquired by the acquiring unit 801 in a first handover request, and send the information to the second network, so that the second network determines, according to the target cell ID, access to the The radio bearer RB reconfiguration parameter of the second network.

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

The receiving unit 803 is configured to receive a first handover response sent by the second network, where the first switching response carries the RB reconfiguration parameter.

The sending unit 802 is further configured to: send, by the second parameter, a second handover response or a handover command to the terminal, where the second parameter includes the target cell ID and the RB received by the receiving unit 803 Reconfiguring the parameters such that the terminal switches from the first network to the second network according to the second parameter.

Further, as shown in FIG. 9, the acquiring unit 801 includes: a first receiving module 8011, and a first determining module 8012.

The first receiving module 8011 is configured to receive a second handover request sent by the terminal from the first network to the second network.

The first determining module 8012 is configured to determine the target cell ID according to the second handover request and a preset cell ID.

The sending unit 802 is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.

Further optionally, the second handover request further includes a 3GPP measurement report, where the 3GPP measurement The quantity report includes a neighboring cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell; the first determining module 8012 is further configured to use, according to the neighboring cell ID, the neighboring cell Signal strength, determining the target cell ID.

Further, the acquiring unit 801 specifically includes: a second receiving module 8013, and a second determining module 8014.

The second receiving module 8013 is configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a neighbor cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell.

The second determining module 8014 is configured to determine the target cell ID according to the neighboring cell ID and a signal strength of the neighboring cell.

The sending unit 802 is specifically configured to send the handover command to the terminal, where the handover command carries the second parameter.

Further, the acquiring unit 801 is further configured to acquire a third parameter of the terminal, where the third parameter includes an international mobile subscriber identity code IMSI or a service quality Qos;

The sending unit 802 is further configured to: send the third parameter to the second network in the first handover request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.

It should be noted that, in the apparatus shown in FIG. 8 and FIG. 9, the specific implementation process of each module and the information interaction between the modules, etc., may be referred to as a method according to the same inventive concept as the method embodiment of the present invention. The embodiment is not described here.

The network switching device provided by the embodiment of the present invention can acquire the target cell ID of the terminal, and carry the target cell ID in the first handover request and send the data to the second network, so that the second network determines to access the second network according to the target cell ID. RB reconfiguration parameters. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and The RB reconfiguration parameter is switched from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network. The embodiment of the invention provides a network switching device. As shown in FIG. 10, the device includes: a memory 1001, a processor 1002, a transmitter 1003, and a receiver 1004.

The memory 1001 is configured to store information including a program routine.

The processor 1002 is coupled to the memory 1001, and configured to acquire a first parameter of the terminal and a target service set identifier SSID of the terminal, where the terminal is located in the first network, where the first parameter includes: an international mobile subscriber identity IMSI or Network access identity NAI, media access control MAC address.

The first network in this step is a 3GPP network.

The transmitter 1003 is configured to send, in the first handover request, the first parameter to the second network, so that the second network determines, according to the first parameter, a key parameter that accesses the second network.

The second network in this step is a WLAN.

The receiver 1004 is configured to receive a first handover response sent by the second network, where the first handover response carries the key parameter. The transmitter 1003 is further configured to send the second parameter to the terminal in a second handover response or a handover command, where the second parameter includes the target SSID and the key parameter, so that The terminal switches from the first network to the second network according to the second parameter.

The processor 1002 is further configured to receive a second handover request that is sent by the terminal from the first network to the second network, where the second handover request carries the first parameter, and the The first parameter in the second handover request; acquiring the target SSID. The transmitter 1003 is configured to send the second handover response to the terminal, where the second handover response carries the second parameter, where the second parameter includes the target SSID and the secret Key parameter.

The processor 1002 is further configured to determine the target SSID according to a preset SSID, or if the second handover request further includes a WLAN measurement report, and the WLAN measurement report includes an SSID and the SSID corresponding to the SSID. The signal strength is determined according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID.

The processor 1002 is further configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and a signal strength corresponding to the SSID; acquiring the WLAN measurement report. The first parameter in the according to the SSID in the WLAN measurement report And the signal strength corresponding to the SSID, determining the target SSID.

The transmitter 1003 is further configured to send the handover command to the terminal, where the handover command carries the second parameter, where the second parameter includes the target SSID and the key parameter.

And the transmitter 1003 is further configured to determine a target BSSID according to the signal strength corresponding to the BSSID and the BSS ID, if the WLAN measurement report further includes a basic target service set identifier BSSID and a signal strength corresponding to the BSS ID. ;

The processor 1002 is further configured to acquire a third parameter of the terminal, where the third parameter includes a source cell identifier ID or a QoS information, and the transmitter 1003 is configured to carry the third parameter in Sending, to the second network, the first handover request, so that the second network determines, according to the third parameter, whether to allow the terminal to switch from the first network to the second network.

It should be noted that, in the apparatus shown in FIG. 10, the specific implementation process of each module and the information interaction between the modules are based on the same inventive concept as the method embodiment of the present invention, and may refer to the method embodiment. This is not - repeat.

The network switching device provided by the embodiment of the present invention can solve the problem of low ease of use and signaling storm caused by using WLAN for network offloading, and reduce processing pressure on the mobile terminal and the network side, and reduce interconnection between network devices. Moreover, when the second parameter further includes the BSSID, the terminal may be caused to switch from the first network to the access point indicated by the target BSS ID under the target SS ID in the second network according to the second parameter. At the same time, after the network handover is completed, the data of the terminal is forwarded to the local gateway through the first network access network and the second network access network, so that the service continuity of the first network to the second network can be ensured. The embodiment of the present invention provides a network switching apparatus. As shown in FIG. 11, the apparatus includes: a memory 1101, a processor 1102, a transmitter 1103, and a receiver 1104. The memory 1101 is configured to store information including a program routine.

The processor 1102 is configured to acquire a first parameter of the terminal, where the terminal is located in the first network, and the first parameter includes a target cell identifier ID.

In this step, the first network is a WLAN.

The transmitter 1103 is configured to send the target cell ID to the second network in a first handover request, so that the second network determines to access the radio bearer RB of the second network according to the target cell ID. Reconfigure parameters.

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

The receiver 1104 is configured to receive a first handover response sent by the second network, where the first switching response carries the RB reconfiguration parameter.

The transmitter 1103 is configured to: send, by the second parameter, a second handover response or a handover command to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration parameter, so that the terminal Switching from the first network to the second network according to the second parameter.

The processor 1102 is further configured to receive a second handover request sent by the terminal from the first network to the second network, and determine, according to the second handover request and a preset cell ID, Target cell ID.

The transmitter 1103 is further configured to send the second handover response to the terminal, where the second handover response carries the second parameter.

The processor 1102 is further configured to: the second handover request further includes a 3GPP measurement report, where the 3GPP measurement report includes a neighboring cell ID of the serving access point where the terminal is located, and a signal strength of the neighboring cell; Determining the target cell ID according to the neighboring cell ID and the signal strength of the neighboring cell.

The processor 1102 is further configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes a neighboring cell ID of a serving access point where the terminal is located, and a signal strength of the neighboring cell; The neighboring cell ID and the signal strength of the neighboring cell determine the target cell ID.

The transmitter 1103 is further configured to send the handover command to the terminal, where the handover is performed. The second parameter is carried in the order.

The processor 1102 is further configured to acquire a third parameter of the terminal, where the third parameter includes an International Mobile Subscriber Identity (IMSSI) or a Quality of Service Qos. The transmitter 1103 is further configured to: send the third parameter to the second network in the first handover request, so that the second network determines, according to the third parameter, whether to allow the The terminal switches from the first network to the second network.

It should be noted that, in the apparatus shown in FIG. 11 , the specific implementation process of each module and the information interaction between the modules, etc., since the method embodiment of the present invention is based on the same inventive concept, reference may be made to the method embodiment. This is not - repeat.

The network switching device provided by the embodiment of the present invention can acquire the target cell ID of the terminal, and carry the target cell ID in the first handover request and send the data to the second network, so that the second network determines to access the second network according to the target cell ID. RB reconfiguration parameters. And receiving a first handover response that carries the RB reconfiguration parameter sent by the second network, and carrying the target cell ID and the RB reconfiguration parameter in the second handover response or the handover command, and sending the terminal to the terminal, so that the terminal can be based on the target cell ID and The RB reconfiguration parameter is switched from the first network to the second network, which can ensure the continuity of the communication service in the process of the terminal switching from the WLAN to the 3GPP network. It should be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as the cells may or may not be physical. Units can be located in one place, or they can be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without any creative effort.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components are used to achieve this, but in many cases the former is a better implementation. Based on such understanding, the technical solution of the present invention is essentially or It is said that the part contributing to the prior art can be embodied in the form of a software product stored in a readable storage medium such as a computer floppy disk, a USB disk, a mobile hard disk, a read only memory (ROM). , Read-Only Memory ), random access memory (RAM, Random Acces s Memory), disk or CD, etc., including instructions for causing a computer device (which can be a personal computer, server, or network device) to execute The method described in various embodiments of the present invention.

The various embodiments in the specification are described in a progressive manner, and the same or similar parts of the various embodiments may be referred to each other, and each embodiment focuses on differences from other embodiments. In particular, for the device and system embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

claims

1. A network switching method, characterized by including:

Obtain the first parameter of the terminal and the target service set identifier SSID of the terminal. The terminal is located in the first network. The first parameter includes: International Mobile Subscriber Identity IMS I or Network Access Identity NAI, Media Access Control MAC address;

Carrying the first parameter in the first handover request and sending it to the second network, so that the second network determines the key parameters for accessing the second network based on the first parameter;

Receive the first handover response sent by the second network, where the first handover response carries the key parameter;

A second parameter is carried in a second handover response or a handover command and sent to the terminal, where the second parameter includes the target SSID and the key parameter, so that the terminal obtains the information from the terminal according to the second parameter. The first network switches to the second network.

2. The method according to claim 1, wherein the first network is a 3GPP network, and the second network is a wireless local area network (WLAN).

3. The method according to claim 2, characterized in that said obtaining the first parameter of the terminal and the target service set identifier SSID of the terminal includes:

Receive a second handover request from the first network to the second network sent by the terminal, where the second handover request carries the first parameter, and obtain the first parameter in the second handover request. One parameter; Obtain the target SS ID;

The carrying the second parameter in the second handover response or handover command and sending it to the terminal includes:

The second switching response is sent to the terminal, the second switching response carries the second parameter, and the second parameter includes the target SSID and the key parameter.

4. The method according to claim 3, wherein the obtaining the target SSID includes:

Determine the target SSID based on the preset SSID; or,

If the second handover request also includes a WLAN measurement report, and the WLAN measurement report includes The target SSID is determined based on the SSID and the signal strength corresponding to the SSID in the WLAN measurement report.

5. The method according to claim 2, wherein the obtaining the first parameter of the terminal and the target service set identifier SSID of the terminal include:

Receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and the signal strength corresponding to the SSID;

Obtain the first parameter in the WLAN measurement report, and determine the target SSID based on the SSID in the WLAN measurement report and the signal strength corresponding to the SSID;

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

6. The method according to claim 4 or 5, wherein the WLAN measurement report further includes a basic target service set identifier BSSID and the signal strength corresponding to the BSSID. The method further includes:

Determine the target BSSID according to the BSSID and the signal strength corresponding to the BSSID;

Wherein, the second parameter also includes the target BSSID, so that the terminal switches from the first network to the target BSSID indicated by the target SSID in the second network according to the second parameter. Access Point.

7. The method according to any one of claims 1 to 6, characterized in that the method further includes: obtaining a third parameter of the terminal, the third parameter including source cell identification ID or quality of service

Qos information;

The third parameter is carried in the first handover request and sent to the second network, so that the second network determines whether to allow the terminal to switch from the first network to the network based on the third parameter. the second network.

8. A network switching method, characterized by including:

Obtain the first parameter of the terminal, the terminal is located in the first network, the first parameter includes the target small District identification ID;

carrying the target cell ID in the first handover request and sending it to the second network, so that the second network determines the radio bearer RB reconfiguration parameters for accessing the second network based on the target cell ID; receiving the The first handover response sent by the second network, the first handover response carries the RB reconfiguration parameter;

The second parameter is carried in a second handover response or a handover command and is sent to the terminal. The second parameter includes the target cell ID and the RB reconfiguration parameter, so that the terminal obtains the information from the target cell according to the second parameter. The first network is switched to the second network.

9. The method of claim 8, wherein the first network is a wireless local area network (WLAN), and the second network is a 3GPP network.

10. The method according to claim 9, characterized in that said obtaining the first parameter of the terminal includes:

Receive a second handover request from the first network to the second network sent by the terminal; determine the target cell ID according to the second handover request and the preset cell ID;

The carrying the second parameter in a second switching response or a switching command to the terminal includes: sending the second switching response to the terminal, and the second switching response carrying the second parameter

11. The method according to claim 10, wherein the second handover request further includes a 3GPP measurement report, and the 3GPP measurement report includes the adjacent cell ID of the serving access point where the terminal is located and the related cell ID. The signal strength of the neighboring cell; the target cell ID is determined based on the neighboring cell ID and the signal strength of the neighboring cell.

12. The method according to claim 9, characterized in that said obtaining the first parameter of the terminal includes:

Receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes the neighboring cell ID of the serving access point where the terminal is located and the signal strength of the neighboring cell; according to the neighboring cell ID and the The signal strength of adjacent cells determines the target cell ID;

The carrying the second parameter in the second handover response or sending the handover command to the terminal includes: The switching command is sent to the terminal, and the switching command carries the second parameter.

13. The method according to any one of claims 8 to 12, characterized in that, the method further includes: obtaining a third parameter of the terminal, the third parameter including International Mobile Subscriber Identity (IMSI) or quality of service. Qos;

14. A network switching device, characterized in that it includes:

The acquisition unit is used to acquire the first parameter of the terminal and the target service set identifier SSID of the terminal. The terminal is located in the first network. The first parameter includes: International Mobile Subscriber Identity IMSI or Network Access Identity NAI, Media access control MAC address;

A sending unit, configured to carry the first parameter obtained by the obtaining unit in a first handover request and send it to the second network, so that the second network determines to access the second network according to the first parameter. Network key parameters;

A receiving unit configured to receive the first handover response sent by the second network, where the first handover response carries the key parameter;

The sending unit is also configured to carry a second parameter in a second handover response or a handover command and send it to the terminal, where the second parameter includes the target SSID and the key parameter received by the receiving unit. , so that the terminal switches from the first network to the second network according to the second parameter.

15. The device according to claim 14, wherein the first network is a 3rd Generation Partnership Project (3GPP) network, and the second network is a wireless local area network (WLAN).

16. The device according to claim 15, characterized in that the acquisition unit specifically includes: a first receiving module, a first acquisition module and a second acquisition module;

The first receiving module is configured to receive a second switching request from the first network to the second network sent by the terminal, where the second switching request carries the first parameter;

The first acquisition module is used to acquire the first parameter in the second handover request; the second acquisition module is also used to acquire the target SS ID; The sending unit is specifically configured to send the second handover response to the terminal, where the second handover response carries the second parameter, and the second parameter includes the target SS ID and the password. key parameters.

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

Determine the target SSID based on the preset SSID; or,

If the second handover request also includes a WLAN measurement report, and the WLAN measurement report includes an SSID and the signal strength corresponding to the SSID, then according to the SSID in the WLAN measurement report and the signal strength corresponding to the SSID The signal strength determines the target SSID.

18. The device according to claim 15, wherein the obtaining unit specifically includes: a second receiving module, a third obtaining module and a determining module;

The second receiving module is configured to receive a WLAN measurement report sent by the terminal, where the WLAN measurement report includes the first parameter, the SSID, and the signal strength corresponding to the SSID;

The third acquisition module is used to acquire the first parameter in the WLAN measurement report; the determination module is used to obtain the signal strength corresponding to the SSID and the SSID in the WLAN measurement report. , determine the target SSID;

The sending unit is specifically configured to send the switching command to the terminal. The switching command carries the second parameter, and the second parameter includes the target SSID and the key parameter.

19. The device according to claim 17 or 18, wherein the WLAN measurement report further includes a basic target service set identifier BSS ID and the signal strength corresponding to the BSSID, and the second acquisition module is also configured to Determine the target BSSID according to the BSSID and the signal strength corresponding to the BSSID;

20. The device according to any one of claims 14-19, characterized in that,

The obtaining unit is also configured to obtain a third parameter of the terminal, where the third parameter includes a source cell identification ID or quality of service Qos information; The sending unit is also configured to carry the third parameter in the first handover request and send it to the second network, so that the second network determines whether to allow the terminal according to the third parameter. Switch from the first network to the second network.

21. A network switching device, characterized in that it includes:

The acquisition unit is used to acquire the first parameter of the terminal, the terminal is located in the first network, and the first parameter includes the target cell identification ID;

A sending unit, configured to carry the target cell ID obtained by the obtaining unit in the first handover request and send it to the second network, so that the second network determines to access the second network based on the target cell ID. Radio bearer RB reconfiguration parameters of the network;

The sending unit is further configured to carry a second parameter in a second handover response or a handover command to the terminal, where the second parameter includes the target cell ID and the RB reconfiguration received by the receiving unit. parameter, so that the terminal switches from the first network to the second network according to the second parameter.

22. The device according to claim 21, wherein the first network is a wireless local area network (WLAN), and the second network is a 3GPP network.

23. The device according to claim 22, characterized in that, the obtaining unit includes: a first receiving module, configured to receive a second message from the first network to the second network sent by the terminal. Switch request;

A first determination module, configured to determine the target cell ID according to the second handover request and the preset cell ID;

24. The apparatus according to claim 23, wherein the second handover request further includes a 3GPP measurement report, and the 3GPP measurement report includes the adjacent cell ID of the serving access point where the terminal is located and the related cell ID. The signal strength of the neighboring cell; the first determination module is also used to determine the signal strength of the neighboring cell according to the signal strength of the neighboring cell. ID and the signal strength of the neighboring cell to determine the target cell ID.

25. The device according to claim 22, wherein the acquisition unit specifically includes: a second receiving module and a second determining module;

The second receiving module is configured to receive a 3GPP measurement report sent by the terminal, where the 3GPP measurement report includes the adjacent cell ID of the serving access point where the terminal is located and the signal strength of the adjacent cell;

The second determination module is used to determine the target cell ID according to the adjacent cell ID and the signal strength of the adjacent cell;

26. The device according to any one of claims 21-25, characterized in that,

The acquisition unit is also used to acquire the third parameter of the terminal, where the third parameter includes the International Mobile Subscriber Identity IMSI or the quality of service Qos;

The sending unit is also configured to carry the third parameter in the first handover request and send it to the second network, so that the second network determines whether to allow the terminal according to the third parameter. Switch from the first network to the second network.