CN104754765B

CN104754765B - WLAN connections in heterogeneous network determine methods, devices and systems

Info

Publication number: CN104754765B
Application number: CN201310754179.5A
Authority: CN
Inventors: 付晓; 王楠
Original assignee: Nokia Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2018-08-21
Anticipated expiration: 2033-12-31
Also published as: CN104754765A

Abstract

The method that the present invention provides a kind of in the user equipment of heterogeneous network for determining with being connect between WLAN, wherein the heterogeneous network includes cellular network and WLAN, and this approach includes the following steps：A receives the WLAN bind commands that source base station the is sent, user equipment needs the target BS switched to instruction, which can be used to indicate that the WLAN connection relevant operations of the user equipment；B executes corresponding WLAN attended operations according to the WLAN bind commands.Method according to the invention it is possible in the heterogeneous network that cellular network and WLAN coexist, connection of the user equipment in handoff procedure between WLAN is controlled by cellular network.

Description

WLAN connections in heterogeneous network determine methods, devices and systems

Technical field

The present invention relates to fields of communication technology more particularly to a kind of WLAN connections in heterogeneous network to determine method, dress It sets and system.

Background technology

In the prior art, under the heterogeneous network environment that cellular network and WLAN coexist, between user equipment and WLAN Connection is unrelated with cellular network, and cellular network can't participate in and/or control the connection between user equipment and WLAN.Especially Its when user equipment carries out handover between cells in Cellular Networks, cellular network be not engaged in and/or control user equipment with Connection between WLAN.

Invention content

The WLAN connections that the object of the present invention is to provide a kind of in heterogeneous network determine methods, devices and systems.

According to an aspect of the present invention, provide it is a kind of in the user equipment of heterogeneous network for determine and WLAN between Connection the first attachment device, wherein the heterogeneous network includes cellular network and WLAN, first attachment device include with Lower device：

First receiving device needs the target BS switched to refer to for receiving the user equipment that source base station is sent, described The WLAN bind commands shown, the WLAN bind commands can be used to indicate that the WLAN connection relevant operations of the user equipment；

Attachment device, for executing corresponding WLAN attended operations according to the WLAN bind commands.

According to another aspect of the present invention, additionally provide it is a kind of in the base station of heterogeneous network be used for assisting user equipment Determine its first auxiliary device being connect between WLAN, wherein the heterogeneous network includes cellular network and WLAN, described Base station is source base station of the user equipment in handoff procedure, which includes following device：

First determining device is used for the WLAN coverage information according to the source base station and the user equipment needs The WLAN coverage information of the target BS switched to determines WLAN distributional class of the user equipment in handoff procedure Type；

First sending device, the target for according to the WLAN distribution patterns, needing to switch to the user equipment Base station sends the WLAN relevant informations of the user equipment；

Second reception device, the WLAN bind commands for receiving the target BS feedback, the WLAN bind command energy It is enough in the WLAN connection relevant operations for indicating the user equipment；

Second sending device, for the WLAN bind commands to be sent to the user equipment.

According to another aspect of the present invention, it additionally provides a kind of true for assisting user equipment in the base station of heterogeneous network Fixed the second auxiliary device that it connect between WLAN, wherein the heterogeneous network includes cellular network and WLAN, the base It is target BS of the user equipment in handoff procedure to stand, which includes following device：

Third reception device, for receiving the user equipment that source base station of the user equipment in handoff procedure is sent, described WLAN relevant informations；

Second determining device, for being believed according to the WLAN relevant informations and the WLAN coverage of the target BS Breath, determines WLAN bind commands, which can be used to indicate that the WLAN connection relevant operations of the user equipment；

4th sending device, for the WLAN bind commands to be sent to the source base station.

According to another aspect of the present invention, additionally provide it is a kind of in the user equipment of heterogeneous network for determine and WLAN Between connection method, wherein the heterogeneous network includes cellular network and WLAN, and this approach includes the following steps：

A receives the WLAN bind commands that source base station the is sent, user equipment needs the target BS switched to instruction, The WLAN bind commands can be used to indicate that the WLAN connection relevant operations of the user equipment；

B executes corresponding WLAN attended operations according to the WLAN bind commands.

According to another aspect of the present invention, it additionally provides a kind of true for assisting user equipment in the base station of heterogeneous network The fixed method that it connect between WLAN, wherein the heterogeneous network includes cellular network and WLAN, and the base station is user Source base station of the equipment in handoff procedure, this approach includes the following steps：

Q needs the target BS switched to according to the WLAN coverage information of the source base station and the user equipment WLAN coverage information, determine WLAN distribution pattern of the user equipment in handoff procedure；

R needs the target BS switched to send the user according to the WLAN distribution patterns, to the user equipment The WLAN relevant informations of equipment；

S receives the WLAN bind commands of the target BS feedback, which can be used to indicate that the use The WLAN connection relevant operations of family equipment；

The WLAN bind commands are sent to the user equipment by t.

According to another aspect of the present invention, it additionally provides a kind of true for assisting user equipment in the base station of heterogeneous network The fixed method that it connect between WLAN, wherein the heterogeneous network includes cellular network and WLAN, and the base station is user Target BS of the equipment in handoff procedure, this approach includes the following steps：

X receives the WLAN relevant informations of the user equipment that source base station of the user equipment in handoff procedure is sent, described；

Y determines WLAN connections according to the WLAN relevant informations and the WLAN coverage information of the target BS Order, the WLAN bind commands can be used to indicate that the WLAN connection relevant operations of the user equipment；

The WLAN bind commands are sent to the source base station by z.

According to another aspect of the present invention, a kind of heterogeneous network is additionally provided, wherein the heterogeneous network includes Cellular Networks Network and WLAN, the user equipment in the heterogeneous network include the first attachment device of the present invention, in the heterogeneous network Base station include the first auxiliary device of the present invention and/or the second auxiliary device of the present invention.

According to another aspect of the present invention, additionally provide it is a kind of in the user equipment of heterogeneous network for determine and WLAN Between connection the second attachment device, wherein the heterogeneous network includes cellular network and WLAN, the second attachment device packet Include following device：

4th reception device, for when user equipment needs switch to target BS from source base station, reception to come from The related letter of cellular network relevant information that source base station provides, target BS and the WLAN in target BS coverage area Breath；

Third determining device for the relevant information according to the cellular network relevant information and the WLAN, and is tied The WLAN measurement results that the user equipment measures the WLAN in the target BS coverage area gained are closed, determining needs The WLAN to be connected.

A receives provided from source base station, target when user equipment needs switch to target BS from source base station The cellular network relevant information of base station and the relevant information of the WLAN in target BS coverage area；

B is according to the cellular network relevant information and the relevant information of the WLAN, and in conjunction with the user equipment pair WLAN in the target BS coverage area measures the WLAN measurement results of gained, determines the WLAN for needing to connect.

According to another aspect of the present invention, a kind of heterogeneous network is additionally provided, wherein the heterogeneous network includes Cellular Networks Network and WLAN, the user equipment in the heterogeneous network include the second attachment device of the present invention, in the heterogeneous network Base station include following device：

Retransmission unit, for when the base station is as source base station in the user equipment handoff procedure, by the target base Cellular network relevant information there is provided, the target BS of standing and the relevant information of the WLAN in target BS coverage area turn Issue the user equipment；

5th sending device, for when the base station is as target BS in the user equipment handoff procedure, to institute It states source base station and sends the cellular network relevant information of the target BS and the related letter of the WLAN in target BS coverage area Breath.

Compared with prior art, the present invention has the following advantages：1）In the heterogeneous network that cellular network and WLAN coexist, Can be by cellular network to control the connection between user equipment and WLAN, and target is switched to by source base station in user equipment needs When base station, target BS can indicate that user equipment executes between WLAN before user equipment is switched to the target BS Relevant operation is connected, to control the access for reducing WLAN in the case of the connection between user equipment and WLAN in cellular network Delay, improve user QoS experience；2）In the heterogeneous network that cellular network and WLAN coexist, it can assist using by base station Family equipment carries out WLAN connections, cellular-related information that the target BS that user equipment can be switched to according to its needs provides and The relevant information of WLAN in target BS coverage area, and combine the user equipment to the WLAN in target BS coverage area The WLAN measurement results of gained are measured to determine the connection between the user equipment and WLAN.

Description of the drawings

By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, of the invention other Feature, objects and advantages will become more apparent upon：

Fig. 1 is the method for determining in heterogeneous network with being connect between WLAN of a preferred embodiment of the present invention Flow diagram；

Fig. 2 is the method for determining in heterogeneous network with being connect between WLAN of another preferred embodiment of the present invention Flow diagram；

Fig. 3 is the system knot for determining in heterogeneous network with being connect between WLAN of a preferred embodiment of the present invention Structure schematic diagram；

Fig. 4 is the system for determining in heterogeneous network with being connect between WLAN of another preferred embodiment of the present invention Structural schematic diagram；

Fig. 5 is that an exemplary WLAN distribution pattern is type schematic diagram for the moment；

The schematic diagram that Fig. 6 is an exemplary WLAN distribution pattern when being type two；

The schematic diagram that Fig. 7 is an exemplary WLAN distribution pattern when being type three.

Same or analogous reference numeral represents same or analogous component in attached drawing.

Specific implementation mode

Present invention is further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is being determined and the stream for the method being connect between WLAN in heterogeneous network for a preferred embodiment of the invention Journey schematic diagram.Wherein, the method for the present embodiment is mainly realized by user equipment and base station；Wherein, the heterogeneous network packet Cellular network and WLAN are included, the base station is the base station in cellular network；Wherein, the user equipment includes but not limited to tablet Computer, smart mobile phone, PDA etc. are any can be with the user equipment of base station communication.

It should be noted that the user equipment and base station are only for example, other meters that are existing or being likely to occur from now on It calculates equipment or network is such as applicable to the present invention, should also be included within the scope of the present invention, and be contained in by reference This.

In the present embodiment, mainly indicate that user equipment carries out WLAN connections by base station；User equipment in the present embodiment It needs to switch to target BS by source base station.

Method according to the present embodiment includes step S101, step S102, step S103, step S104, step S105, step Rapid S106, step S107, step S108 and step S109.

In step S101, source base station needs the target switched to according to its WLAN coverage information and user equipment The WLAN coverage information of base station determines WLAN distribution pattern of the user equipment in handoff procedure.

Wherein, the WLAN coverage information of source base station indicates the coverage area letter of the WLAN in the source base station coverage area Breath.Preferably, the WLAN coverage information of the source base station includes but not limited to the overlay area of each WLAN in source base station；More Preferably, the WLAN coverage information of the source base station further includes the WLAN signal in the overlay area of each WLAN of source base station The information such as intensity.

Wherein, the WLAN coverage information of target BS indicates the covering model of the WLAN in the target BS coverage area Enclose information.Preferably, the WLAN coverage information of the target BS include but not limited in target BS each WLAN cover Cover area；It is highly preferred that the WLAN coverage information of the target BS further includes the area of coverage of each WLAN of target BS The information such as the WLAN signal intensity in domain.

Wherein, the WLAN coverage information of target BS can be supplied to source base station by target BS.Also, source base station can Its WLAN coverage information is obtained using various ways.

For example, the coverage area information of each WLAN in source base station coverage area is by manually presetting, then source base Station directly acquires WLAN coverage information of the coverage area information as source base station of each WLAN being preset.

In another example source base station can respectively be reported according to each user equipment in its coverage area, each user sets The measurement result of standby location information and the WLAN to that can detect and/or have been connected to, as user equipment can detect Signal strength and signal power of WLAN etc., the WLAN information on position to determine each user equipment, such as the signal of WLAN Intensity and signal power etc., to extrapolate the WLAN coverage information of source base station

Wherein, WLAN distribution pattern of the user equipment in handoff procedure indicates that user equipment may be met in handoff procedure The case where WLAN distributions arrived.Preferably, WLAN distribution pattern of the user equipment in handoff procedure includes but not limited to：

1）Type one：User equipment currently only accesses cellular network, and in the handoff procedure of user equipment, which sets There are the WLAN that the user equipment can access in the coverage area of the standby target BS for needing to switch to.

Fig. 5 show the schematic diagram that an exemplary WLAN distribution pattern is type one, wherein eNB1 is that user equipment exists Source base station in handoff procedure, eNB2 are that user equipment needs the target BS switched to, user equipment currently only to access eNB1 The cellular network at place, and in the handoff procedure of user equipment, which can encounter figure in the coverage area of eNB2 Shown in the accessible WLAN of two user equipmenies.

2）Type two：The user equipment is currently accessed in the cellular network and the source base station coverage area WLAN, and when in the coverage area that the user equipment is moved to the target BS leaves or substantially away from currently The coverage area of the WLAN of access.Wherein, the coverage area substantially away from the WLAN currently accessed indicates user equipment Fringe region in WLAN coverage detects although user equipment may still be able to detect the WLAN WLAN signal is typically not enough to support the normal communication between user equipment and WLAN.

It is illustrated in figure 6 the schematic diagram that an exemplary WLAN distribution pattern is type two, wherein eNB1 is user equipment Source base station in handoff procedure, eNB2 are that user equipment needs the target BS switched to, user equipment to be currently accessed eNB1 The cellular network at place and the as shown in the figure WLAN in source base station coverage area, and it is moved to covering for eNB2 in user equipment When in lid range, substantially away from the coverage area of the WLAN currently accessed.

3）Type three：The user equipment is currently accessed in the cellular network and the source base station coverage area WLAN, and when in the coverage area that the user equipment is moved to the target BS, currently accessed still in it In the coverage area of WLAN.

It is illustrated in figure 7 the schematic diagram that an exemplary WLAN distribution pattern is type three, wherein eNB1 is user equipment Source base station in handoff procedure, eNB2 are that user equipment needs the target BS switched to, user equipment to be currently accessed eNB1 The cellular network at place and the as shown in the figure WLAN in source base station coverage area, and it is moved to covering for eNB2 in user equipment When in lid range, coverage area of the user equipment still in the WLAN currently accessed.

It should be noted that the citing of above-mentioned WLAN distribution patterns is only that technical scheme of the present invention is better described, and Non- limitation of the present invention, it should be appreciated by those skilled in the art that any possible WLAN distribution patterns, should be included in this hair In bright range.

Specifically, the mesh that source base station needs to switch to according to the WLAN coverage information and user equipment of the source base station The WLAN coverage information for marking base station, determine network and user equipment that user equipment is currently accessed in handoff procedure The case where WLAN being likely encountered in target BS coverage area, so that it is determined that WLAN of the user equipment in handoff procedure Distribution pattern.

For example, the target that source base station needs to switch to according to the WLAN coverage information and user equipment of the source base station The WLAN coverage information of base station determines the only cellular network that user equipment is currently accessed and user equipment is in handoff procedure In the accessible WLAN of the user equipment can be encountered in target BS coverage area, then source base station determines that user equipment exists WLAN distribution patterns in handoff procedure are type one.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that any cut according to the WLAN coverage information and user equipment of source base station needs The WLAN coverage information of the target BS shifted to determines the realization of WLAN distribution pattern of the user equipment in handoff procedure Mode should be included in the scope of the present invention.

In step s 102, source base station is according to the WLAN distribution patterns, the mesh for needing to switch to the user equipment Mark base station sends the WLAN relevant informations of the user equipment.It should be noted that use can be added in source base station in switching request The WLAN relevant informations of family equipment；Alternatively, source base station can rise the WLAN relevant informations of user equipment together with switching request one Give target BS.

Wherein, the WLAN relevant informations of user equipment indicate the relevant information of WLAN being able to detect that with user equipment. Preferably, the WLAN relevant informations of user equipment include but not limited to the mark that user equipment is currently able to each WLAN detected Know information, signal strength, channel power etc..

As a preferred embodiment, for three kinds of WLAN distribution patterns described in abovementioned steps S101, when WLAN is distributed Type is type a period of time, target that WLAN relevant informations include user equipment to report, that it can access it in handoff procedure The measurement result of WLAN in base station range；When WLAN distribution patterns are type two, WLAN relevant informations include user The stream information for the WLAN that equipment is currently accessed；When WLAN distribution patterns are type three, WLAN relevant informations include the survey of WLAN Measure result and the stream information of WLAN.

Wherein, the measurement result of the WLAN of user equipment to report, which includes user equipment, can detect and/or have connected to it The measurement result of WLAN extremely, and user equipment can execute the step of the measurement result for reporting WLAN before subsequent step S108 Suddenly.Preferably, the measurement result of WLAN includes but not limited at least one of following：

1）Identification information is such as used for the WLAN SSID of unique mark WLAN（Service set identifier, Service Set Identifier）；

2）Signal strength information, such as the WLAN RSSI of the signal strength for indicating WLAN（Received signal strength indicator, Received Signal Strength Indicator）；

3）Channel power information, such as the WLAN RCPI of the channel power for indicating WLAN（Channel power instruction is received, Received Channel Power Indicator）；

4）Signal and noise information, such as the WLAN RSNI of the signal and noise for indicating WLAN（Receive signal and noise Instruction, Received Signal to Noise Indicator）.

Preferably, user equipment at least can report the WLAN of the user equipment to measure knot to source base station in a case where Fruit：

1）User equipment periodically reports the WLAN measurement results of the user equipment.

Wherein, source base station can be the report cycle for all user device configuration WLAN measurement results for accessing the source base station, The report cycle that then user equipment is configured according to source base station periodically reports the WLAN measurement results of the user equipment.

2）When meeting preset trigger condition, its WLAN measurement result of user equipment to report.Wherein, the predetermined trigger item Part includes the condition of any measurement result that is pre-defined, can be used for triggering user equipment to report WLAN.

For example, the measurement result that preset trigger condition is some WLAN parameter 1 is more than predetermined threshold, then when user equipment is true When the measurement result of its fixed WLAN parameter 1 measured is more than predetermined threshold, user equipment reports the user to set to source base station Standby WLAN measurement results, wherein the predetermined threshold can be by defining for source base station and being sent to user equipment.Preferably, Source base station can be type a period of time in WLAN distribution patterns, and the measurement result for setting preset trigger condition to some WLAN parameter surpasses Cross predetermined threshold.As another example, when WLAN distribution patterns are type two, preset trigger condition can be set to some The measurement result of WLAN parameters is less than another predetermined threshold.

Alternatively, user equipment can also when receiving WLAN from source base station and measuring request, on Report its WLAN measurement result.In the case, source base station sends WLAN to user equipment and measures request, wherein the WLAN is surveyed Amount request for ask user equipment to its in handoff procedure can access described target BS coverage area in WLAN into Row measures and report measurement results, it is preferable that the WLAN measures the mark letter that request includes the WLAN for needing to measure The WLAN parameters such as RSSI that breath and needs measure；Then user equipment receives the WLAN from source base station and measures request When, request is measured according to the WLAN, its WLAN in target BS coverage area that can access in handoff procedure is surveyed Amount, and report WLAN measurement results to source base station.

Wherein, the stream information of the WLAN indicates the information of the business data flow between user equipment and WLAN；Wherein, institute The stream information for stating WLAN includes but not limited to traffic data rate, the service priority etc. between user equipment and WLAN；It should The stream information of WLAN can be by target BS for controlling the WLAN streams of user equipment.Wherein, source base station can be used a variety of Mode obtains the stream information of WLAN.For example, source base station can ask user equipment by the stream information of WLAN in WLAN measures request It is reported to the source base station as WLAN measurement results；In another example source base station can be by monitoring in the source base station coverage area WLAN directly acquires the stream information of WLAN；In another example source base station is when order user equipment and WLAN establish Business Stream, directly Obtain the stream information.

Specifically, the WLAN distribution patterns that source base station is determined according to it in step S101, determine the WLAN of user equipment Relevant information, and need the target BS switched to send identified WLAN relevant informations to the user equipment.

For example, in step S101, source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is in Fig. 5 Shown in type one；In step s 102, source base station determines that the WLAN relevant informations of user equipment set for user according to type one The measurement result of standby two accessible WLAN reporting, it is encountered in handoff procedure in target BS coverage area, And the target BS switched to user equipment needs sends the measurement result of two WLAN.

In another example in step S101, source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is Fig. 6 Shown in type two；In step s 102, source base station determines that the WLAN relevant informations of user equipment are user according to type two The stream information for the WLAN that equipment has currently accessed, and need the target BS switched to transmission user equipment current to user equipment The stream information of the WLAN accessed.

For another example in step S101, source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is Fig. 7 Shown in type three；In step s 102, source base station determines that the WLAN relevant informations of user equipment include using according to type three The stream information of the WLAN that family equipment has currently accessed and user equipment to report measure institute to the WLAN that it has currently been accessed The WLAN measurement results obtained, and need the target BS switched to send the WLAN that user equipment has currently accessed to user equipment Stream information and the WLAN measurement result.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that any target BS for according to WLAN distribution patterns, needing to switch to user equipment The realization method of WLAN relevant informations, should be included in the scope of the present invention determined by sending.

In step s 103, target BS of the user equipment in handoff procedure receives user equipment in handoff procedure WLAN relevant informations that source base station is sent, the user equipment.

For example, target BS of the user equipment in handoff procedure receives source base station hair of the user equipment in handoff procedure WLAN measurement results send, the user equipment.

In step S104, target BS covers model according to the WLAN of the WLAN relevant informations and target BS received Information is enclosed, determines WLAN bind commands, which can be used to indicate that the WLAN connections of the user equipment are related Operation.

Wherein, the WLAN connections relevant operation can be used to indicate that user equipment execution connect relevant behaviour with WLAN Make.Preferably, WLAN connections relevant operation includes but not limited at least one of following：

1）WLAN action types.Wherein, the WLAN action types are used to indicate the connection between user equipment and WLAN Operation, such as disconnect and WLAN connection, maintenance and the connection of WLAN, be connected to new WLAN；Preferably, when WLAN operates class When type instruction is connected to new WLAN, the WLAN action types may also include the identification information of the new WLAN.

2）The flow control information of WLAN.Wherein, the flow control information is indicated for controlling the business data flow in WLAN Information；Preferably, the flow control information may include business data flow that target BS determines, needing WLAN to handle Information.

Specifically, target BS is according to received WLAN relevant informations, and the WLAN of combining target base station covers model Information is enclosed, determines and is used to indicate the WLAN bind commands that user equipment executes WLAN connection relevant operations.

For example, for the distribution situation between source base station shown in fig. 5, target BS, WLAN, in step s 103, mesh Mark base station receive the user equipment that source base station of the user equipment in handoff procedure is sent to two WLAN shown in figure into Row measures the WLAN measurement results of gained；In step S104, target BS receives the WLAN of user equipment according to it and measures As a result, the simultaneously WLAN coverage information of combining target base station, determines that user equipment needs the WLAN accessed, and determine comprising should Need the WLAN bind commands of the identification information of the WLAN accessed.

In another example for the distribution situation between source base station shown in fig. 6, target BS, WLAN, in step s 103, Target BS receives the stream information for the WLAN that source base station of the user equipment in handoff procedure is sent；In step S104, target Base station is according to the stream information of received WLAN, and the WLAN coverage information of combining target base station, determination are used to indicate User equipment disconnects the WLAN bind commands being connect between the current WLAN accessed, and the WLAN bind commands include using The flow control information controlled in indicating the business data flow of WLAN transferring to target BS.

For another example for the distribution situation between source base station shown in Fig. 7, target BS, WLAN, in step s 103, The stream information and the user equipment for the WLAN that source base station of the target BS reception user equipment in handoff procedure is sent are to working as The WLAN measurement results for measuring gained of the preceding WLAN accessed；In step S104, target BS is received according to it WLAN stream information and user equipment WLAN measurement results, and the WLAN coverage information of combining target base station, really Surely it is used to indicate user equipment and maintains the WLAN bind commands being connect between the current WLAN accessed, and the WLAN connections Flow control information of the order including being used to indicate the WLAN that the partial data stream of WLAN transfers to target BS to control.

As a preferred embodiment, target BS can be according to the WLAN measurement results of received user equipment, next life At optional WLAN lists, and other WLAN informations are combined, determine the best WLAN for being most suitable for user equipment, and generated corresponding WLAN bind commands.Wherein, described other WLAN informations indicate WLAN measurement results and its other than WLAN coverage information His WLAN information；Preferably, other described WLAN informations include but not limited to the load information of each WLAN, backhaul quality information Deng.

For example, RSSI of the target BS according to each WLAN in the WLAN measurement results of received user equipment, An optional WLAN list is generated, each WLAN in the optional WLAN lists is arranged from high in the end according to its RSSI, target base The load information for standing according to the optional WLAN lists and combining each WLAN, can select wherein one in the optional WLAN lists A WLAN generates WLAN bind commands corresponding with the best WLAN as the best WLAN for being most suitable for user equipment.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that it is any according to WLAN relevant informations and the WLAN coverage information of target BS, The realization method for determining WLAN bind commands, should be included in the scope of the present invention.

In step S105, the WLAN bind commands that target BS is determined are sent to source base station.

It should be noted that the WLAN connections can be added in target BS in the switch acknowledgment message sent to source base station Order；Alternatively, the WLAN bind commands can be sent jointly to source base station by target BS together with switch acknowledgment message.

In step s 106, source base station receives the WLAN bind commands of target BS feedback.

For example, source base station receives the switch acknowledgment message that target BS is sent, and mesh is extracted from the switch acknowledgment message Mark the WLAN bind commands of base station feedback.

In step s 107, the WLAN bind commands are sent to user equipment by source base station.

It should be noted that source base station can be set in the RRC connection reconfigurations sent to user equipment（RRCConnect Recon figura tion）The WLAN bind commands are added in message；Alternatively, source base station can be by the WLAN bind commands together with RRC Connection reconfiguration sets message and sends jointly to user equipment.

In step S108, user equipment receives source base station the is sent, user equipment and needs the target BS switched to The WLAN bind commands of instruction.

For example, user equipment, which receives the RRC connection reconfigurations that source base station is sent, sets message, and sets and disappear from the RRC connection reconfigurations The WLAN bind commands that user equipment needs the target BS switched to instruction are extracted in breath.

In step S109, user equipment executes corresponding WLAN according to the WLAN bind commands received and operates.

For example, the WLAN bind commands instruction WLAN action types that user equipment receives are to be connected to new WLAN, then User equipment executes the operation for accessing the new WLAN according to the identification information of the new WLAN in WLAN bind commands.

In another example the WLAN bind commands instruction WLAN action types that user equipment receives are disconnected and have been accessed The connection of WLAN, and the flow control information of WLAN indicates that all business data flows in the WLAN accessed are converted into bee Nest network controls, then user equipment disconnects the connection with original WLAN according to the WLAN bind commands, and by the institute in former WLAN There is business data flow to transfer to cellular network control.

For another example the WLAN bind commands instruction WLAN action types that user equipment receives are maintained and have been accessed The connection of WLAN, and the flow control information instruction of WLAN needs to transfer to the partial service data flow that cellular network is handled, then user Equipment maintains the connection between the WLAN that has accessed, and the need that will be indicated in WLAN bind commands according to the WLAN bind commands The partial service data flow that cellular network is handled is transferred to transfer cellular network control to from WLAN.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that the WLAN bind commands that any basis receives execute the reality of corresponding WLAN operations Existing mode, should be included in the scope of the present invention.

It can be controlled by cellular network in the heterogeneous network that cellular network and WLAN coexist according to the present embodiment method Connection between user equipment and WLAN, and when user equipment needs switch to target BS by source base station, target BS can Before user equipment is switched to the target BS, instruction user equipment executes the connection relevant operation between WLAN, to The delay of the access of WLAN in the case where cellular network controls the connection between user equipment and WLAN is reduced, user is improved and sets Standby QoS experience.

Fig. 2 is the method for determining in heterogeneous network with being connect between WLAN of another preferred embodiment of the present invention Flow diagram.Wherein, the method for the present embodiment is mainly realized by user equipment and base station；Wherein, the heterogeneous network Including cellular network and WLAN, the base station is the base station in cellular network；Wherein, the user equipment includes but not limited to flat Plate computer, smart mobile phone, PDA etc. are any can be with the user equipment of base station communication.

In the present embodiment, mainly WLAN connections are carried out come assisting user equipment by base station.

Method according to the present embodiment includes step S201, step S202, step S203 and step S204.

In step s 201, when user equipment needs switch to target BS from source base station, target BS is to source base station Send the cellular network relevant information of the target BS and the relevant information of the WLAN in target BS coverage area.It needs Bright, the cellular network correlation letter of the target BS can be added in target BS in the switch acknowledgment message sent to source base station The relevant information of breath and the WLAN in target BS coverage area；Alternatively, target BS can by the cellular-related information with And the relevant information of the WLAN sends jointly to source base station together with switch acknowledgment message.

Wherein, the cellular network relevant information of the target BS indicates the relevant letter of cellular network with target BS Breath；Wherein, the cellular network relevant information of the target BS includes but not limited to the load information of target BS, is based on RSRP （Reference Signal Received Power, Reference Signal Received Power）RAN（Wireless access network, Radio Access Network）Select threshold value etc..

Wherein, in the relevant information expression and target BS coverage area of the WLAN in the target BS coverage area The relevant information of WLAN；Wherein, the relevant information of the WLAN in target BS coverage area includes but not limited to the channel of WLAN Utilization rate, backhaul threshold value, RSSI threshold values, RCPI threshold values etc..

In step S202, cellular network relevant information that source base station provides target BS, the target BS and The relevant information of WLAN in target BS coverage area is transmitted to the user equipment.

It should be noted that target BS can be added in source base station in the RRC connection reconfigurations sent to user equipment are set The relevant information of cellular network relevant information and the WLAN in target BS coverage area；Alternatively, source base station can be by target base The relevant information of the cellular network relevant information and the WLAN in target BS coverage area stood confirms RRC connections together with switching Reconfiguration message sends jointly to user equipment.

In step S203, when user equipment needs switch to target BS from source base station, user equipment receives The correlation of cellular network relevant information provided from source base station, target BS and the WLAN in target BS coverage area Information.

For example, when user equipment needs switch to target BS from source base station, user equipment is received from source base station RRC connection reconfigurations set message, and the Cellular Networks that source base station provides target BS is extracted in message are set from the RRC connection reconfigurations The relevant information of network relevant information and the WLAN in target BS coverage area.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that it is any when user equipment needs switch to target BS from source base station, it receives The correlation of cellular network relevant information provided from source base station, target BS and the WLAN in target BS coverage area The realization method of information, should be included in the scope of the present invention.

In step S204, user equipment according to the cellular network relevant information and the relevant information of the WLAN, And the WLAN measurement results of gained are measured to the WLAN in the target BS coverage area in conjunction with the user equipment, really The WLAN connected is needed calmly.

Specifically, user equipment is according to the relevant information of the cellular network relevant information and WLAN that receive, and combines User equipment measures the WLAN in target BS coverage area the WLAN measurement results of gained, and model is covered to target BS Each WLAN in enclosing is assessed, to determine the connection between WLAN.

For example, for schematic diagram shown in fig. 5, user equipment is according to received cellular-related information and WLAN Relevant information, and combination user equipment measures two WLAN shown in figure the WLAN measurement results of gained, it can be from mesh Mark one WLAN for being suitable for user equipment access of selection in two WLAN in base station range.

In another example for schematic diagram shown in fig. 6, user equipment is according to received cellular-related information and WLAN Relevant information, and combine user equipment to WLAN shown in figure measure gained WLAN measurement results, it may be determined that use Family equipment needs the connection between the WLAN for disconnecting and having accessed, and the business data flow in the WLAN is all transferred to target base It stands to control.

For another example for schematic diagram shown in Fig. 7, user equipment is according to received cellular-related information and WLAN Relevant information, and combine user equipment to WLAN shown in figure measure gained WLAN measurement results, be based on user The ANDSF of equipment（Network discovery and selection function, Access Network Discovery And Selection Function）Strategy to assess the load performance of target BS, and determines and maintains user equipment WLAN's to that indicated in the drawings It connects and the partial service data flow in the WLAN is transferred into target BS to control.

It should be noted that the above-mentioned examples are merely illustrative of the technical solutions of the present invention, rather than to the limit of the present invention System, it should be appreciated by those skilled in the art that it is any according to the cellular network relevant information and the relevant information of the WLAN, And the WLAN measurement results of gained are measured to the WLAN in the target BS coverage area in conjunction with the user equipment, really The realization method for needing the WLAN connected calmly, should be included in the scope of the present invention.

It can assist using by base station in the heterogeneous network that cellular network and WLAN coexist according to the method for the present embodiment Family equipment carries out WLAN connections, cellular-related information that the target BS that user equipment can be switched to according to its needs provides and The relevant information of WLAN in target BS coverage area, and combine the user equipment to the WLAN in target BS coverage area The WLAN measurement results of gained are measured to determine the connection between the user equipment and WLAN.

Fig. 3 is the system structure for determining in heterogeneous network with being connect between WLAN of a preferred embodiment of the invention Schematic diagram.The system includes user equipment, source base station and target BS；Wherein, the user equipment includes the first attachment device, First attachment device includes first receiving device 1 and attachment device 2；Wherein, the source base station includes the first auxiliary device, First auxiliary device includes the first determining device 3, the first sending device 4, the second reception device 5 and the second sending device 6； Wherein, the target BS includes the second auxiliary device, and second auxiliary device includes that third reception device 7, second determines Device 8 and the 4th sending device 9.

First determining device 3 of source base station needs to switch according to the WLAN coverage information and user equipment of source base station The WLAN coverage information of target BS extremely determines WLAN distribution pattern of the user equipment in handoff procedure.

Wherein, the WLAN coverage information of target BS can be supplied to source base station by target BS.Also, source base station Various ways can be used to obtain the WLAN coverage information of the source base station in first determining device 3.

For example, the coverage area information of each WLAN in source base station coverage area is by manually presetting, then first Determining device 3 directly acquires WLAN coverage of the coverage area information of each WLAN being preset as source base station Information.

In another example it is that the first determining device 3 can respectively be reported according to each user equipment in source base station coverage area, should The measurement result of the location information of each user equipment and the WLAN to that can detect and/or have been connected to, such as user equipment Signal strength and signal power of the WLAN that can be detected etc., the WLAN information on position to determine each user equipment, such as Signal strength and signal power of WLAN etc., to extrapolate the WLAN coverage information of source base station.

Specifically, the first determining device 3 of source base station is set according to the WLAN coverage information of the source base station and user The WLAN coverage information of the standby target BS for needing to switch to determines that network that user equipment is currently accessed and user are set The case where standby WLAN being likely encountered in target BS coverage area in handoff procedure, so that it is determined that the user equipment exists WLAN distribution patterns in handoff procedure.

For example, the first determining device 3 needs to switch according to the WLAN coverage information and user equipment of the source base station The WLAN coverage information of target BS extremely determines the only cellular network that user equipment is currently accessed and user equipment exists The accessible WLAN of the user equipment can be encountered in handoff procedure in target BS coverage area, then the first determining device 3 determine that WLAN distribution pattern of the user equipment in handoff procedure is type one.

First sending device 4 of source base station is switched to according to the WLAN distribution patterns to user equipment needs Target BS sends the WLAN relevant informations of the user equipment.It should be noted that the first sending device 4 can be in switching request The middle WLAN relevant informations that user equipment is added；Alternatively, the first sending device 4 can by the WLAN relevant informations of user equipment together with Switching request sends jointly to target BS.

As a preferred embodiment, for aforementioned three kinds of WLAN distribution patterns, when WLAN distribution patterns be type for the moment, In target BS coverage area that WLAN relevant informations include user equipment to report, that it can access it in handoff procedure The measurement result of WLAN；When WLAN distribution patterns are type two, WLAN relevant informations include what user equipment was currently accessed The stream information of WLAN；When WLAN distribution patterns are type three, WLAN relevant informations include the measurement result and WLAN of WLAN Stream information.

Wherein, the measurement result of the WLAN of user equipment to report, which includes user equipment, can detect and/or have connected to it The measurement result of WLAN extremely.Preferably, the measurement result of WLAN includes but not limited at least one of following：

Preferably, the first attachment device of user equipment further includes reporting device（It is not shown）, the reporting device can with The operation for the measurement result that WLAN is reported to source base station is executed before the first receiving device 1 of family equipment.The reporting device is extremely The WLAN measurement results of the user equipment can be reported to source base station in a case where less：

1）The reporting device of user equipment periodically reports the WLAN measurement results of the user equipment.

Wherein, source base station can be the report cycle for all user device configuration WLAN measurement results for accessing the source base station, The report cycle that then reporting device of user equipment is configured according to source base station periodically reports the WLAN of the user equipment to survey Measure result.

2）When meeting preset trigger condition, the reporting device of user equipment reports its WLAN measurement result.Wherein, described Preset trigger condition includes the condition of any measurement result that is pre-defined, can be used for triggering user equipment to report WLAN.

For example, the measurement result that preset trigger condition is some WLAN parameter 1 is more than predetermined threshold, then when user equipment is true When the measurement result of its fixed WLAN parameter 1 measured is more than predetermined threshold, the reporting device of user equipment is on source base station Report the WLAN measurement results of the user equipment, wherein the predetermined threshold can be by defining for source base station and being sent to user equipment 's.Preferably, source base station can be type a period of time in WLAN distribution patterns, set preset trigger condition to some WLAN parameter Measurement result is more than predetermined threshold.It as another example, can be by preset trigger condition when WLAN distribution patterns are type two The measurement result for being set as some WLAN parameter is less than another predetermined threshold.

Alternatively, the reporting device of user equipment can also be measured receiving the WLAN from source base station When request, its WLAN measurement result is reported.In the case, source base station further includes third sending device（It is not shown）, the third Sending device sends WLAN to user equipment and measures request, wherein the WLAN measures request for asking user equipment to it The WLAN in the target BS coverage area that can access in handoff procedure is measured and report measurement results, preferably Ground, it includes the WLAN for needing the identification information of the WLAN measured and needing to measure that the WLAN, which measures request, Parameter such as RSSI；When then the reporting device of user equipment receives the measurement requests of the WLAN from source base station, surveyed according to the WLAN Amount request measures its WLAN in target BS coverage area that can access in handoff procedure, and on source base station Report WLAN measurement results.

Specifically, the WLAN distribution patterns that the first sending device 4 of source base station is determined according to the first determining device 3 determine The WLAN relevant informations of user equipment, and need the target BS switched to send identified WLAN correlations to the user equipment Information.

For example, the first determining device 3 of source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is Fig. 5 Shown in type one；First sending device 4 of source base station determines that the WLAN relevant informations of user equipment are to use according to type one Measurement knots that family equipment reports, its two accessible WLAN encountered in target BS coverage area in handoff procedure Fruit, and the target BS switched to user equipment needs sends the measurement result of two WLAN.

In another example the first determining device 3 of source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is Type two shown in Fig. 6；First sending device 4 of source base station determines the WLAN relevant informations of user equipment according to type two For the stream information for the WLAN that user equipment has currently accessed, and needs the target BS switched to send user to user equipment and set The stream information of the standby current WLAN accessed.

For another example the first determining device 3 of source base station determines that WLAN distribution pattern of the user equipment in handoff procedure is Type three shown in fig. 7；First sending device 4 of source base station determines the WLAN relevant informations of user equipment according to type three The stream information of WLAN and the WLAN of user equipment to report currently accessed to it currently accessed including user equipment carries out The WLAN measurement results of gained are measured, and needs the target BS switched to send user equipment to user equipment and has currently accessed WLAN stream information and the WLAN measurement result.

The third reception device 7 of target BS of the user equipment in handoff procedure receives user equipment in handoff procedure Source base station send, the WLAN relevant informations of the user equipment.

Switching for example, the third reception device 7 of target BS of the user equipment in handoff procedure receives user equipment WLAN measurement results that source base station in the process is sent, the user equipment.

Second determining device 8 of target BS is covered according to the WLAN of the WLAN relevant informations and target BS received Range information determines WLAN bind commands, which can be used to indicate that the WLAN connection phases of the user equipment Close operation.

Specifically, the second determining device 8 of target BS is according to received WLAN relevant informations, and combining target base The WLAN coverage information stood determines and is used to indicate the WLAN bind commands that user equipment executes WLAN connection relevant operations.

For example, for the distribution situation between source base station shown in fig. 5, target BS, WLAN, the third of target BS connects Receiving apparatus 7 receive the user equipment that source base station of the user equipment in handoff procedure is sent to two WLAN shown in figure into Row measures the WLAN measurement results of gained；The user that second determining device 8 of target BS is received according to third reception device 7 The WLAN measurement results of equipment, and the WLAN coverage information of combining target base station determine what user equipment needs accessed WLAN, and determine the WLAN bind commands of the identification information of the WLAN comprising needs access.

In another example for the distribution situation between source base station shown in fig. 6, target BS, WLAN, the third of target BS Reception device 7 receives the stream information for the WLAN that source base station of the user equipment in handoff procedure is sent；The second of target BS is really Determine the stream information for the WLAN that device 8 is received according to third reception device 7, and the WLAN coverage letter of combining target base station Breath determines that being used to indicate user equipment disconnects the WLAN bind commands being connect between the current WLAN accessed, and should WLAN bind commands include being used to indicate the flow control information that the business data flow of WLAN is transferred to target BS to control.

For another example for the distribution situation between source base station shown in Fig. 7, target BS, WLAN, the third of target BS The stream information and the user equipment for the WLAN that source base station of the reception user equipment of reception device 7 in handoff procedure is sent are to working as The WLAN measurement results for measuring gained of the preceding WLAN accessed；Second determining device 8 of target BS connects according to third The stream information for the WLAN that receiving apparatus 7 receives and the WLAN measurement results of user equipment, and the WLAN of combining target base station covers Lid range information determines that being used to indicate user equipment maintains the WLAN connections being connect between the current WLAN accessed to order It enables, and the WLAN bind commands include being used to indicate the flow control for the WLAN that the partial data stream of WLAN transfers to target BS to control Information processed.

As a preferred embodiment, the use that the second determining device 8 of target BS can be received according to third reception device 7 The WLAN measurement results of family equipment to generate optional WLAN lists, and combine other WLAN informations, and determination is most suitable for user equipment Best WLAN, and generate corresponding WLAN bind commands.Wherein, described other WLAN informations indicate WLAN measurement results with Other WLAN informations other than WLAN coverage information；Preferably, other described WLAN informations are including but not limited to each Load information, backhaul quality information of WLAN etc..

For example, the WLAN for the user equipment that the second determining device 8 of target BS is received according to third reception device 7 is surveyed Measure the RSSI of each WLAN in result, generate an optional WLAN list, each WLAN in the optional WLAN lists according to Its RSSI is arranged from high in the end, and the second determining device 8, can according to the optional WLAN lists and the load information of each WLAN of combination WLAN one of is selected in the optional WLAN lists as the best WLAN for being most suitable for user equipment, and is generated with this most The corresponding WLAN bind commands of good WLAN.

Determining WLAN bind commands are sent to source base station by the 4th sending device 9 of target BS.

It should be noted that the 4th sending device 9 of target BS can be in the switch acknowledgment message sent to source base station The WLAN bind commands are added；Alternatively, the 4th sending device 9 of target BS can be by the WLAN bind commands together with switching Confirmation message sends jointly to source base station.

Second reception device 5 of source base station receives the WLAN bind commands of target BS feedback.

For example, the second reception device 5 of source base station receives the switch acknowledgment message that target BS is sent, and it is true from the switching Recognize in message and extracts the WLAN bind commands of target BS feedback.

The WLAN bind commands are sent to user equipment by the second sending device 6 of source base station.

It should be noted that the second sending device 6 of source base station can be set in the RRC connection reconfigurations sent to user equipment （RRCConnect Recon figura tion）The WLAN bind commands are added in message；Alternatively, the second hair of source base station It send device 6 that can the WLAN bind commands be set message together with RRC connection reconfigurations and sends jointly to user equipment.

The first receiving device 1 of user equipment receives source base station the is sent, user equipment and needs the target base switched to Stand instruction WLAN bind commands.

For example, the first receiving device 1 of user equipment, which receives the RRC connection reconfigurations that source base station is sent, sets message, and from this RRC connection reconfigurations set and extract the WLAN bind commands that user equipment needs the target BS switched to instruction in message.

The attachment device 2 of user equipment executes corresponding WLAN according to the WLAN bind commands received and operates.

For example, the WLAN bind commands instruction WLAN action types that the first receiving device 1 of user equipment receives are to connect It is connected to new WLAN, then the attachment device 2 of user equipment is executed according to the identification information of the new WLAN in WLAN bind commands Access the operation of the new WLAN.

In another example the WLAN bind commands instruction WLAN action types that the first receiving device 1 of user equipment receives are The connection with the WLAN accessed is disconnected, and the flow control information of WLAN indicates all business numbers in the WLAN accessed It is converted into cellular network according to stream to control, then the attachment device 2 of user equipment disconnects and original according to the WLAN bind commands The connection of WLAN, and all business data flows in former WLAN are transferred into cellular network control.

For another example the WLAN bind commands instruction WLAN action types that the first receiving device 1 of user equipment receives are The connection with the WLAN accessed is maintained, and the flow control information instruction of WLAN needs the partial service for transferring to cellular network to handle Data flow, then the attachment device 2 of user equipment the connection between the WLAN that has accessed is maintained according to the WLAN bind commands, and The partial service data flow for needing to transfer to cellular network to handle indicated in WLAN bind commands is transferred to Cellular Networks from WLAN Network controls.

It can be controlled by cellular network in the heterogeneous network that cellular network and WLAN coexist according to the present embodiment system Connection between user equipment and WLAN, and when user equipment needs switch to target BS by source base station, target BS can Before user equipment is switched to the target BS, instruction user equipment executes the connection relevant operation between WLAN, to The delay of the access of WLAN in the case where cellular network controls the connection between user equipment and WLAN is reduced, user is improved and sets Standby QoS experience.

Fig. 4 is that the determination in heterogeneous network of another preferred embodiment of the present invention is shown with the system being connect between WLAN It is intended to.Wherein, which includes user equipment, source base station and target BS；Wherein, the user equipment includes that the second connection fills It sets, second attachment device includes the 4th reception device 10 and third determining device 11；Wherein, the source base station includes forwarding Device 12；Wherein, the target BS includes the 5th sending device 13.

When user equipment needs switch to target BS from source base station, the 5th sending device 13 in target BS is to source Base station sends the cellular network relevant information of the target BS and the relevant information of the WLAN in target BS coverage area.It needs It is noted that the target can be added in the 5th sending device 13 of target BS in the switch acknowledgment message sent to source base station The cellular network relevant information of base station and the relevant information of the WLAN in target BS coverage area；Alternatively, target BS 5th sending device 13 can be by the relevant information of the cellular-related information and the WLAN together with switch acknowledgment message It is sent to source base station.

Cellular network relevant information and mesh that the retransmission unit 12 of source base station provides target BS, the target BS The relevant information of WLAN in mark base station range is transmitted to the user equipment.

It should be noted that the retransmission unit 12 of source base station can add in the RRC connection reconfigurations sent to user equipment are set Enter the cellular network relevant information of target BS and the relevant information of the WLAN in target BS coverage area；Alternatively, source base The retransmission unit 12 stood can be by the phase of the WLAN in the cellular network relevant information of target BS and target BS coverage area It closes information and confirms that RRC connection reconfigurations set message and send jointly to user equipment together with switching.

When user equipment needs switch to target BS from source base station, the 4th reception device 10 of user equipment connects There is provided from source base station, the cellular network relevant information of target BS and the phase of the WLAN in target BS coverage area are provided Close information.

For example, when user equipment needs switch to target BS from source base station, the 4th reception device 10 of user equipment Receive the RRC connection reconfigurations from source base station and set message, and set from the RRC connection reconfigurations extracted in message it is that source base station provides, The cellular network relevant information of target BS and the relevant information of the WLAN in target BS coverage area.

The third determining device 11 of user equipment is believed according to the cellular network relevant information and the related of the WLAN It ceases, and measures the WLAN measurement knots of gained to the WLAN in the target BS coverage area in conjunction with the user equipment Fruit determines the WLAN for needing to connect.

Specifically, the third determining device 11 of user equipment is according to the cellular network relevant information and WLAN received Relevant information, and combination user equipment measures the WLAN in target BS coverage area the WLAN measurement results of gained, Each WLAN in target BS coverage area is assessed, to determine the connection between WLAN.

For example, for schematic diagram shown in fig. 5, the third determining device 11 of user equipment is according to received honeycomb phase Information and the relevant information of WLAN are closed, and combination user equipment measures two WLAN shown in figure the WLAN of gained Measurement result can select a WLAN for being suitable for user equipment access from two WLAN in target BS coverage area.

In another example for schematic diagram shown in fig. 6, the third determining device 11 of user equipment is according to received honeycomb The relevant information of relevant information and WLAN, and the WLAN for combining user equipment to measure gained to WLAN shown in figure is surveyed Measure result, it may be determined that user equipment needs to disconnect the connection between the WLAN that has accessed, and by the business datum in the WLAN Stream all transfers to target BS to control.

For another example for schematic diagram shown in Fig. 7, the third determining device 11 of user equipment is according to received honeycomb The relevant information of relevant information and WLAN, and the WLAN for combining user equipment to measure gained to WLAN shown in figure is surveyed Amount is as a result, the ANDSF based on user equipment（Network discovery and selection function, Access Network Discovery And Selection Function）Strategy to assess the load performance of target BS, and determines and maintains the user equipment and institute in figure The connection of the WLAN shown and the partial service data flow in the WLAN is transferred into target BS to control.

It can assist using by base station in the heterogeneous network that cellular network and WLAN coexist according to the system of the present embodiment Family equipment carries out WLAN connections, cellular-related information that the target BS that user equipment can be switched to according to its needs provides and The relevant information of WLAN in target BS coverage area, and combine the user equipment to the WLAN in target BS coverage area The WLAN measurement results of gained are measured to determine the connection between the user equipment and WLAN.

It should be noted that the present invention can be carried out in the assembly of software and/or software and hardware, for example, this hair Application-specific integrated circuit can be used in bright device（ASIC）Or any other is realized similar to hardware device.In one embodiment, The software program of the present invention can be executed by processor to realize steps described above or function.In addition, some of the present invention Hardware can be used to realize in step or function, for example, coordinating to execute the circuit of each step or function as with processor.

It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation includes within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.This Outside, it is clear that one word of " comprising " is not excluded for other units or step, and odd number is not excluded for plural number.That is stated in system claims is multiple Unit or device can also be realized by a unit or device by software or hardware.The first, the second equal words are used for table Show title, and does not represent any particular order.

Claims

1. a kind of the first attachment device in the user equipment of heterogeneous network for determining with being connect between WLAN, wherein The heterogeneous network includes cellular network and WLAN, which includes following device：

First receiving device, for when user equipment needs switch to target BS by source base station, receiving the source base User equipment send, described of standing needs the WLAN bind commands of the target BS switched to instruction, WLAN connections life It enables and can be used to indicate that the WLAN connection relevant operations of the user equipment, wherein the WLAN connections relevant operation includes The flow control information of WLAN action types and/or WLAN；

2. the first attachment device according to claim 1, wherein first attachment device further includes being received described first The following device of operation is executed before device：

Reporting device, the WLAN measurement results for reporting the user equipment to the source base station.

3. a kind of determining its first auxiliary being connect between WLAN in the base station of heterogeneous network for assisting user equipment Device, wherein the heterogeneous network includes cellular network and WLAN, and the base station is source base of the user equipment in handoff procedure It stands, which includes following device：

First determining device, for when the user equipment needs target BS is switched to by the source base station when, according to described The WLAN coverage information of source base station and the user equipment need the WLAN covering models of the target BS switched to Information is enclosed, determines WLAN distribution pattern of the user equipment in handoff procedure；

First sending device, the target BS for according to the WLAN distribution patterns, needing to switch to the user equipment Send the WLAN relevant informations of the user equipment, wherein the WLAN relevant informations include WLAN measurement result and/or The stream information of WLAN；

Second reception device, the WLAN bind commands for receiving the target BS feedback, the WLAN bind commands can be used In the WLAN connection relevant operations for indicating the user equipment, wherein the WLAN connections relevant operation includes WLAN operation classes The flow control information of type and/or WLAN；

4. the first auxiliary device according to claim 3, wherein the WLAN distribution patterns include：

Type one：The user equipment currently only accesses the cellular network, and in the handoff procedure of the user equipment, institute State in the coverage area of target BS there are the user equipment can access WLAN；

Type two：The user equipment is currently accessed the WLAN in the cellular network and the source base station coverage area, and When in the coverage area that the user equipment is moved to the target BS, leave or substantially away from currently having accessed The coverage area of WLAN；

Type three：The user equipment is currently accessed the WLAN in the cellular network and the source base station coverage area, and When in the coverage area that the user equipment is moved to the target BS, the covering of the WLAN currently accessed still in it In range.

5. the first auxiliary device according to claim 4, wherein when the WLAN distribution patterns be type for the moment, it is described Target BS covering that WLAN relevant informations include the user equipment to report, that it can access it in handoff procedure The measurement result of WLAN in range；When the WLAN distribution patterns are type two, the WLAN relevant informations include described The stream information for the WLAN that user equipment is currently accessed；When the WLAN distribution patterns are type three, the WLAN relevant informations The stream information of measurement result and the WLAN including the WLAN.

6. the first auxiliary device according to claim 4 or 5, wherein first auxiliary device further includes following device：

Third sending device measures request for sending WLAN to the user equipment, which measures request and used for asking The WLAN in the target BS coverage area that family equipment can access it in handoff procedure is measured and reporting measurement As a result.

7. a kind of determining its second auxiliary being connect between WLAN in the base station of heterogeneous network for assisting user equipment Device, wherein the heterogeneous network includes cellular network and WLAN, and the base station is target of the user equipment in handoff procedure Base station, second auxiliary device include following device：

Third reception device, for when user equipment needs switch to the target BS by source base station, described in reception The WLAN relevant informations of the user equipment that source base station is sent, described, wherein the WLAN relevant informations include the measurement knot of WLAN The stream information of fruit and/or WLAN；

Second determining device is used for the WLAN coverage information according to the WLAN relevant informations and the target BS, Determine WLAN bind commands, which can be used to indicate that the WLAN connection relevant operations of the user equipment, In, the WLAN connections relevant operation includes WLAN action types and/or the flow control information of WLAN；

8. the second auxiliary device according to claim 7, wherein the WLAN connections relevant operation includes following at least one ：

- WLAN action types；

The flow control information of-WLAN.

9. a kind of method in the user equipment of heterogeneous network for determining with being connect between WLAN, wherein the isomery Network includes cellular network and WLAN, and this approach includes the following steps：

A receives the user that the source base station is sent, described when user equipment needs switch to target BS by source base station Equipment needs the WLAN bind commands of the target BS switched to instruction, which can be used to indicate that described The WLAN connection relevant operations of user equipment, wherein the WLAN connections relevant operation includes WLAN action types and/or WLAN Flow control information；

10. a kind of determining its method being connect between WLAN in the base station of heterogeneous network for assisting user equipment, In, the heterogeneous network includes cellular network and WLAN, and the base station is source base station of the user equipment in handoff procedure, the party Method includes the following steps：

Q is covered when user equipment needs switch to target BS by the source base station according to the WLAN of the source base station Range information and the user equipment need the WLAN coverage information of the target BS switched to, determine the use WLAN distribution pattern of the family equipment in handoff procedure；

R needs the target BS switched to send the user equipment according to the WLAN distribution patterns, to the user equipment WLAN relevant informations, wherein the WLAN relevant informations include the measurement result of WLAN and/or the stream information of WLAN；

S receives the WLAN bind commands of the target BS feedback, which can be used to indicate that the user sets Standby WLAN connection relevant operations, wherein the WLAN connections relevant operation includes WLAN action types and/or the flow control of WLAN Information processed；

The WLAN bind commands are sent to the user equipment by t.

11. a kind of determining its method being connect between WLAN in the base station of heterogeneous network for assisting user equipment, In, the heterogeneous network includes cellular network and WLAN, and the base station is target BS of the user equipment in handoff procedure, should Method includes the following steps：

X is received that the source base station is sent, described when user equipment needs switch to the target BS by source base station The WLAN relevant informations of user equipment, wherein the WLAN relevant informations include the measurement result of WLAN and/or the stream letter of WLAN Breath；

Y determines WLAN bind commands according to the WLAN relevant informations and the WLAN coverage information of the target BS, The WLAN bind commands can be used to indicate that the WLAN connection relevant operations of the user equipment, wherein the WLAN connections phase It includes WLAN action types and/or the flow control information of WLAN to close operation；

The WLAN bind commands are sent to the source base station by z.

12. a kind of heterogeneous network, wherein the heterogeneous network includes cellular network and WLAN, the user in the heterogeneous network Equipment includes the first attachment device as claimed in claim 1 or 2, and the base station in the heterogeneous network includes such as claim 3 To described in any one of 6 the first auxiliary device and/or the second auxiliary device as claimed in claim 7 or 8.

13. a kind of the second attachment device in the user equipment of heterogeneous network for determining with being connect between WLAN, wherein The heterogeneous network includes cellular network and WLAN, which includes following device：

4th reception device, for when user equipment needs switch to target BS from source base station, receiving and coming from source base It stands providing, the cellular network relevant information of target BS and the relevant information of the WLAN in target BS coverage area, In, the cellular network relevant information includes at least one in the load information of target BS, the RAN selection threshold values based on RSRP , the relevant information of the WLAN include in the channel utilization of WLAN, backhaul threshold value, RSSI threshold values, RCPI threshold values at least One；

Third determining device for the relevant information according to the cellular network relevant information and the WLAN, and combines institute The WLAN measurement results that user equipment measures the WLAN in the target BS coverage area gained are stated, determination needs to connect The WLAN connect.

14. a kind of method in the user equipment of heterogeneous network for determining with being connect between WLAN, wherein the isomery Network includes cellular network and WLAN, and this approach includes the following steps：

A receives provided from source base station, target BS when user equipment needs switch to target BS from source base station Cellular network relevant information and the WLAN in target BS coverage area relevant information, wherein the cellular network phase It includes at least one in the load information of target BS, the RAN selection threshold values based on RSRP, the correlation of the WLAN to close information Information includes at least one in the channel utilization of WLAN, backhaul threshold value, RSSI threshold values, RCPI threshold values；

B is according to the cellular network relevant information and the relevant information of the WLAN, and in conjunction with the user equipment to described WLAN in target BS coverage area measures the WLAN measurement results of gained, determines the WLAN for needing to connect.

15. a kind of heterogeneous network, wherein the heterogeneous network includes cellular network and WLAN, the user in the heterogeneous network Equipment includes the second attachment device as described in claim 13, and the base station in the heterogeneous network includes following device：

Retransmission unit, for when the base station is as source base station in the user equipment handoff procedure, target BS to be provided , the cellular network relevant information of the target BS and the relevant information of the WLAN in target BS coverage area be transmitted to institute State user equipment, wherein the cellular network relevant information includes the load information of target BS, the RAN selections based on RSRP In threshold value at least one of, the relevant information of the WLAN include the channel utilization of WLAN, backhaul threshold value, RSSI threshold values, At least one of in RCPI threshold values；

5th sending device, for when the base station is as target BS in the user equipment handoff procedure, to the source Base station sends the cellular network relevant information of the target BS and the relevant information of the WLAN in target BS coverage area.