CN108377511A

CN108377511A - WLAN converges unit variation and device, base station, system

Info

Publication number: CN108377511A
Application number: CN201611041776.3A
Authority: CN
Inventors: 吴昊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2018-08-07
Also published as: WO2018090638A1

Abstract

The present invention provides a kind of WLAN convergence unit variations and device, base station, systems；Wherein, WLAN convergences unit variation includes：Base station is used for the WLAN resources that WLAN is converged to target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests for terminal distribution；The base station discharges the WLAN resources that the source WLAN convergences unit is the terminal distribution after the confirmation message for receiving the agreement request that the target WLAN convergences unit returns, to source WLAN convergences unit requests.Through the invention, it solves in the related technology, terminal is altered to the problem of new WLAN convergence units can lead to loss of data, ensure that the continuity of business under the control of base station.

Description

WLAN converges unit variation and device, base station, system

Technical field

The present invention relates to fields of communication technology, and unit variation and device, base are converged in particular to a kind of WLAN It stands, system.

Background technology

Present WLAN (Wireless Local Area Networks, abbreviation WLAN) and mobile communication technology is Through becoming two big wireless technologys the most successful.For many years, they have complementary advantages always.Wireless Fidelity (Wi- in WLAN Fi) the maximum advantage of technology is, it is run on the frequency spectrum of unauthorized, anyone can dispose Wi-Fi network, and And it can support the thinkable nearly all intelligent handheld device of people or internet of things equipment.Wi-Fi is most suitable be large capacity, The indoor application of high density and Hypomobility.On the other hand, mobile communication technology sweeps away the whole world in the past few decades, creates Huge radio wide area network, such as global system for mobile communications (Global System for Mobile Communication, abbreviation GSM), wideband code division multiple access (Wideband Code Division Multiple Access, letter Claim WCDMA), LTE network.It has the advantages that ubiquitous outdoor cover, seamless mobile, more perfect support voice and stream Media etc. are applied in real time.The combination of two technologies will be that entire industry brings huge hope.

3GPP R13 are proposed LWA technologies at present, by LWA, separate LTE data payloads, some flows can lead to WLAN transmission is crossed, it is remaining then to be transmitted in itself by long term evolution (Long Term Evolution, abbreviation LTE), to big The big performance for promoting LTE services.One completely new unit is sent to by base station by the WLAN data transmitted：WLAN money orders Member.Again terminal is sent to by WLAN access points by WLAN convergence units.WLAN convergence units are responsible in LWA scenes The interaction of the access point of wlan network and responsible wlan network and LTE network.

Base station obtains the WLAN access point ranges that WLAN convergence units are managed by the interaction with WLAN convergence units Table, and terminal is sent to by space interface signaling.Terminal can only connect when converging technology using mobile network and WLAN from the WLAN Entering in point list selects WLAN access points to be attached.

However in the LWA technologies of R13, the mobility of terminal is not considered.It is inevitable when terminal is in moving process It can occur to be moved to the coverage area that another WLAN converges unit from the coverage area that a WLAN converges unit.In this shifting Under the scene of dynamic property, for terminal under the control of base station, loss of data can be led to by being altered to new WLAN convergence units.

For above-mentioned technical problem in the related technology, currently no effective solution has been proposed.

Invention content

An embodiment of the present invention provides a kind of WLAN convergence unit variations and device, base station, systems, at least to solve In the related technology, terminal is altered to the problem of new WLAN convergence units can lead to loss of data under the control of base station.

According to one embodiment of present invention, a kind of WLAN convergences unit variation is provided, including：Base station is to target Target WLAN convergence units described in WLAN WLAN convergence unit requests are WLAN money of the terminal distribution for WLAN convergences Source；The base station is after the confirmation message for receiving the agreement request that the target WLAN convergences unit returns, Xiang Yuan WLAN convergences unit requests discharge the WLAN resources that the source WLAN convergences unit is the terminal distribution.

Optionally, it is eventually to target WLAN converges unit described in Target Wireless LAN WLAN convergence unit requests in base station Before WLAN resources of the end distribution for WLAN convergences, method further includes：Base station receives the measurement report that terminal is sent；Wherein, The mark of other WLAN access points except the WLAN access point lists preserved on carried terminal in measurement report；Other WLAN connect It is corresponding to enter point identification with target WLAN convergence units.

Optionally, measurement report is when following event occurs, and terminal is sent to the measurement report of base station：WLAN access points The measurement result of WLAN access points in list is below the first threshold value；And there are the WLAN WLAN accessed except point list to connect The measurement result of access point is higher than the second threshold value.

Optionally, it is the terminal distribution discharging the source WLAN convergences unit to source WLAN convergences unit requests After WLAN resources, method further includes：Base station sends radio resource control RRC connection reconfiguration signaling to terminal；Wherein, RRC connects Connecing re-matching signaling includes：The mark of the access point of WLAN corresponding with target WLAN convergence units.

Optionally, after base station sends RRC connection reconfiguration signalings to terminal, method further includes：Mesh is received in base station The connection confirmation message for being used to indicate terminal and having been coupled to target WLAN convergence units that mark WLAN convergence units are sent, and/ Or base station receives the terminal that is used to indicate of terminal transmission and has been coupled to the connection status report of target WLAN convergence unit and disappear After breath, base station sends downlink data packet or base station to target WLAN convergence units and receives terminal from target WLAN convergence units The upstream data packet of transmission.

Optionally, it is the terminal distribution discharging the source WLAN convergences unit to source WLAN convergences unit requests After WLAN resources, method further includes：Base station receives the state that WLAN convergence units in source are sent and transmits report message；Wherein, shape It includes at least one of parameter that state, which transmits report message,：It has been successfully sent in the sequence number of multiple data packets of terminal Maximum sequence number；The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully.

Optionally, it includes successfully having sent out that the state sent in the source WLAN convergence units received, which transmits report message, In the case of giving the maximum sequence number in the sequence number of multiple data packets of terminal, base station is sent to target WLAN convergence units Downlink data packet includes：Stored in base station first specified data packet is sent to target WLAN and converges unit by base station；Wherein, The sequence number of one specified data packet is more than maximum sequence number.

Optionally, it includes the data lost that the state sent in the source WLAN convergence units received, which transmits report message, In the case of the sequence number of packet, base station sends downlink data packet to target WLAN convergence units and includes：Will stored in base station Two specified data packets are sent to target WLAN convergence units；Wherein, the sequence number of the second specified data packet is equal to the data lost The sequence number of packet.

Optionally, it includes failed send that the state sent in the source WLAN convergence units received, which transmits report message, Data packet sequence number in the case of, base station sends downlink data packet to target WLAN convergence unit and includes：It will be deposited in base station The third of storage specifies data packet to be sent to target WLAN convergence units；Wherein, third specify data packet sequence number be equal to not at The sequence number for the data packet that work(is sent.

According to one embodiment of present invention, a kind of WLAN convergences unit change device is provided, including：First asks modulus Block, for being WLAN resource of the terminal distribution for WLAN convergences to target WLAN convergence units；First receiving module, for connecing Receive the confirmation message for the agreement request that the target WLAN convergences unit returns；Second request module is used for source WLAN Convergence unit requests discharge the WLAN resources that the source WLAN convergences unit is the terminal distribution.

Optionally, device further includes：First receiving module, the measurement report for receiving terminal transmission；Wherein, report is measured The mark of other WLAN access points except the WLAN access point lists preserved on carried terminal in announcement.

Optionally, device further includes：First sending module, for sending radio resource control RRC connection reconfiguration to terminal Signaling；Wherein, RRC connection reconfigurations signaling includes：The mark of the access point of WLAN corresponding with target WLAN convergence units.

Optionally, device further includes：Second sending module, for receiving what target WLAN convergence units were sent in base station It is used to indicate that terminal has been coupled to the connection confirmation message of target WLAN convergence unit and/or base station receives terminal transmission Be used to indicate after terminal has been coupled to the connection status report message of target WLAN convergence unit, to target WLAN money orders Member sends downlink data packet；Alternatively, the second receiving module, for receiving being used for for target WLAN convergence unit transmissions in base station Instruction terminal has been coupled to the connection confirmation message of target WLAN convergence units and/or base station receives the use that terminal is sent After the connection status report message that instruction terminal has been coupled to that target WLAN converges unit, connect from target WLAN convergence units Receive the upstream data packet that terminal is sent.

Optionally, device further includes：Third receiving module transmits report for receiving the state that WLAN convergence units in source are sent Accuse message；Wherein, it includes at least one of parameter that state, which transmits report message,：It has been successfully sent to multiple numbers of terminal According to the maximum sequence number in the sequence number of packet；The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully.

Optionally, the state that the source WLAN convergence units received in the third receiving module of described device are sent transmits report In the case of accusing the maximum sequence number in the sequence number that message includes the multiple data packets for being successfully sent to the terminal, Second sending module is additionally operable to the will be stored in base station first specified data packet and is sent to the target WLAN money orders Member；Wherein, the sequence number of the described first specified data packet is more than the maximum sequence number.

Optionally, the state that the source WLAN convergence units received in the third receiving module of described device are sent transmits report In the case of accusing the sequence number that message includes the data packet lost, second sending module is additionally operable to store in base station The second specified data packet be sent to target WLAN convergence unit；Wherein, the sequence number etc. of the described second specified data packet In the sequence number of the data packet of the loss.

Optionally, the state that the source WLAN convergence units received in the third receiving module of described device are sent transmits report In the case of accusing the sequence number that message includes the data packet sent not successfully, second sending module is additionally operable to base station The third of middle storage specifies data packet to be sent to the target WLAN convergences unit；Wherein, the third specifies the sequence of data packet Row number is equal to the sequence number of the data packet sent not successfully.

According to one embodiment of present invention, a kind of base station is provided, including：Transmitting device is used for Target Wireless office It is the WLAN resources that terminal distribution is used for WLAN convergences that target WLAN convergence units described in WLAN convergence unit requests are netted in domain；And After the confirmation message for receiving the agreement request that the target WLAN convergences unit returns, unit requests are converged to source WLAN Discharge the WLAN resources that the source WLAN convergences unit is the terminal distribution.

Optionally, transmitting device is additionally operable to receive the measurement report that terminal is sent；Wherein, in measurement report on carried terminal The mark of other WLAN access points except the WLAN access point lists of preservation.

Optionally, transmitting device is additionally operable to send radio resource control RRC connection reconfiguration signaling to terminal；Wherein, RRC Connection reconfiguration signaling includes：The mark of the access point of WLAN corresponding with target WLAN convergence units.

Optionally, transmitting device is additionally operable to be used to indicate terminal what base station received that target WLAN convergence unit sends It has been coupled to the connection confirmation message of target WLAN convergence unit and/or what base station received terminal transmission is used to indicate end After end has been coupled to the connection status report message of target WLAN convergence units, lower line number is sent to target WLAN convergence units According to packet；Alternatively, receiving the upstream data packet that terminal is sent from target WLAN convergence units.

Optionally, transmitting device is additionally operable to the state that WLAN convergence units in reception source are sent and transmits report message；Wherein, shape It includes at least one of parameter that state, which transmits report message,：It has been successfully sent in the sequence number of multiple data packets of terminal Maximum sequence number；The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully.

Optionally, transmitting device is additionally operable in the state that the source WLAN convergence units received are sent transmits report message It, will be in base station in the case of maximum sequence number in sequence number including the multiple data packets for being successfully sent to the terminal First specified data packet of storage is sent to the target WLAN convergences unit；And/or converge unit in the source WLAN received In the case that the state of transmission transmits the sequence number that report message includes the data packet lost, stored in base station second is referred to Determine data packet and is sent to the target WLAN convergences unit；And/or the state sent in the source WLAN convergence units received passes In the case of passing the sequence number that report message includes the data packet sent not successfully, the third stored in base station is specified into data Packet is sent to the target WLAN convergences unit；Wherein, the sequence number of the described first specified data packet is more than the maximal sequence Number；The sequence number of the second specified data packet is equal to the sequence number of the data packet of the loss；The third specifies data packet Sequence number be equal to the data packet sent not successfully sequence number.

According to one embodiment of present invention, a kind of system is provided, including：Base station, terminal, Target Wireless LAN WLAN converges unit and source WLAN converges unit；Wherein, the base station, for described in target WLAN convergence unit requests Target WLAN convergence units are the WLAN resources that the terminal distribution is used for WLAN convergences；And receiving the target WLAN After the confirmation message for converging the agreement request that unit returns, the source WLAN is discharged to source WLAN convergence unit requests Converge the WLAN resources that unit is the terminal distribution.

Optionally, terminal, for when following event occurs, measurement report to be sent to base station：WLAN is accessed in point list The measurement results of WLAN access points be below the first threshold value；And there are WLAN to access the WLAN access points except point list Measurement result is higher than the second threshold value；Wherein, the WLAN preserved on carried terminal in measurement report accesses its except point list The mark of his WLAN access points.

Optionally, base station is additionally operable to the state that WLAN convergence units in reception source are sent and transmits report message；Wherein, state It includes at least one of parameter to transmit report message：It has been successfully sent in the sequence number of multiple data packets of terminal Maximum sequence number；The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully；Base station is additionally operable to described In the case that state transmission report message includes the maximum sequence number, the stored in base station first specified data packet is sent Unit is converged to the target WLAN；And/or transmit the sequence that report message includes the data packet of the loss in the state In the case of row number, the stored in base station second specified data packet is sent to the target WLAN and converges unit；And/or In the case that the state transmits the sequence number that report message includes the data packet sent not successfully, it will be stored in base station Third specify data packet to be sent to target WLAN convergence unit；Wherein, the sequence number of the described first specified data packet is big In the maximum sequence number；The sequence number of the second specified data packet is equal to the sequence number of the data packet of the loss；It is described Third specifies the sequence number of data packet equal to the sequence number of the data packet sent not successfully.

According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses In the program code for executing following steps：It is converged to target WLAN described in Target Wireless LAN WLAN convergence unit requests base station Unit is the WLAN resources that terminal distribution is used for WLAN convergences；The base station is receiving the target WLAN convergences unit return The agreement request confirmation message after, it is the end to discharge the source WLAN convergences unit to source WLAN convergence unit requests Hold the WLAN resources of distribution.

Through the invention, terminal point same is meant receive that target WLAN convergence unit returns due to the base station After being used in the confirmation message of the WLAN resources of WLAN convergences, just the source WLAN convergences are discharged to source WLAN convergence unit requests Unit is the WLAN resources of the terminal distribution so that terminal can continue to keep the connection of WLAN, Ke Yibao in moving process Card data will not lose, and therefore, can solve in the related technology, and terminal is altered to new WLAN convergences under the control of base station Unit can lead to the problem of loss of data, ensure that the continuity of business.

Description of the drawings

Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：

Fig. 1 is a kind of flow diagram of WLAN convergence unit variations provided according to embodiments of the present invention；

Fig. 2 is the structure diagram of WLAN convergences unit change device according to the ... of the embodiment of the present invention；

Fig. 3 is the structural schematic diagram of the base station provided according to embodiments of the present invention；

Fig. 4 is the flow diagram that unit variation is converged according to the WLAN that the preferred embodiment of the present invention 1 provides；

Fig. 5 is the flow diagram that unit variation is converged according to the WLAN that the preferred embodiment of the present invention 2 provides.

Specific implementation mode

Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can be combined with each other.

It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.

Embodiment 1

An embodiment of the present invention provides a kind of WLAN to converge unit variation, and Fig. 1 is to provide according to embodiments of the present invention A kind of WLAN convergence unit variation flow diagram, as shown in Figure 1, this method includes：

Step S102, base station is to target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests for eventually WLAN resource of the end distribution for WLAN convergences；

Step S104, base station is in the confirmation message for receiving the agreement request that the target WLAN convergences unit returns Afterwards, the WLAN resources that the source WLAN convergences unit is the terminal distribution are discharged to source WLAN convergences unit requests.

Through the above steps, terminal same is meant receive that target WLAN convergence unit returns due to the base station After confirmation message of the distribution for the WLAN resources of WLAN convergences, just the source WLAN is discharged to source WLAN convergence unit requests and converged Poly- unit is the WLAN resources of the terminal distribution so that terminal can continue to keep the connection of WLAN in moving process, can be with Ensure that data will not lose, therefore, can solve in the related technology, terminal is altered to new WLAN and converges under the control of base station Poly- unit can lead to the problem of loss of data, ensure that the continuity of business.

It should be noted that above-mentioned steps S102 can send demand signalling realization by converging unit to target WLAN, And above-mentioned demand signalling can be WLAN convergence unit addition demand signallings, i.e. WT addition request signalings, but not It is limited to this, wherein WT is the abbreviation that WLAN converges unit；Above-mentioned confirmation message can be WLAN convergence unit addition request confirmations Signaling, i.e. WT addition request Acknowledge, but it is not limited to this.

It should be noted that can also be realized by signaling in above-mentioned steps S104, for example made by discharging demand signalling The WLAN resources of base station distribution can be released to by obtaining source WLAN convergence units, and then base station is disconnected company with source WLAN convergence units It connects.

In one embodiment of the invention, before above-mentioned steps S102, the above method can also include：Base station receives The measurement report that terminal is sent；Wherein, the WLAN preserved on carried terminal in measurement report accesses other except point list The mark of WLAN access points.

It should be noted that other above-mentioned WLAN access point identities are corresponding with target WLAN convergence units.

It should be noted that it is corresponding WLAN access point identities to be carried in measurement report with target WLAN convergence units, And then it can determine that target WLAN converges according to target WLAN convergence units are corresponding WLAN access point identities with base station Poly- unit, but it is not limited to this.

It should be noted that above-mentioned measurement report can be when following event occurs, terminal is sent to the measurement of base station Report：The measurement result of WLAN access points in WLAN access point lists is below the first threshold value；And there are WLAN access points The measurement result of WLAN access points except list is higher than the second threshold value.

It should be noted that above-mentioned first threshold value is less than or equal to above-mentioned second threshold value.

It should be noted that above-mentioned measurement result can be the signal quality or signal strength of WLAN access points, or Other can reflect the value of WLAN access point signals quality and intensity, however it is not limited to this.

In one embodiment of the invention, after above-mentioned steps S104, the above method can also include：Base station is to end End sends radio resource control RRC connection reconfiguration signaling；Wherein, RRC connection reconfigurations signaling includes：With target WLAN money orders The mark of the access point of the corresponding WLAN of member.By the way that the mark of the access point of WLAN corresponding with target WLAN convergence units is led to Know terminal so that terminal can be connected to target based on the mark of the access point of WLAN corresponding with target WLAN convergence units WLAN converges unit.

In one embodiment of the invention, after base station sends RRC connection reconfiguration signalings to terminal, the above method is also May include：The terminal that is used to indicate that target WLAN convergence units are sent, which is received, in base station has been coupled to target WLAN convergences The terminal that is used to indicate that the connection confirmation message of unit and/or base station receive terminal transmission has been coupled to target WLAN remittances After the connection status report message of poly- unit, base station sends downlink data packet or base station from mesh to target WLAN convergence units It marks WLAN convergence units and receives the upstream data packet that terminal is sent.

In one embodiment of the invention, after above-mentioned steps S104, the above method can also include：Base station receives Source WLAN converges the state that unit is sent and transmits report message；Wherein, it includes at least one of that state, which transmits report message, Parameter：The maximum sequence number being successfully sent in the sequence number of multiple data packets of terminal；The sequence of the data packet of loss Number；The sequence number of the data packet sent not successfully.

It should be noted that it includes that the state sent in the source WLAN convergence units received, which transmits report message, In the case of being successfully sent to the maximum sequence number in the sequence number of multiple data packets of terminal, base station is to target WLAN money orders Member sends downlink data packet and can show as：Stored in base station first specified data packet is sent to target WLAN convergences by base station Unit；Wherein, the sequence number of the first specified data packet is more than maximum sequence number；It is sent in the source WLAN convergence units received In the case that state transmits the sequence number that report message includes the data packet lost, base station is sent to target WLAN convergence units Downlink data packet can be shown as：Stored in base station second specified data packet is sent to target WLAN and converges unit；Wherein, The sequence number of second specified data packet is equal to the sequence number for the data packet lost；It is sent in the source WLAN convergence units received In the case that state transmits the sequence number that report message includes the data packet sent not successfully, base station is to target WLAN money orders Member sends downlink data packet and can show as：Data packet is specified to be sent to target WLAN money orders the third stored in base station Member；Wherein, third specifies the sequence number of data packet equal to the sequence number of the data packet sent not successfully.

It should be noted that can also be combined with each other under the above situation, such as in the source WLAN convergence unit hairs received In the case that the state sent transmits the sequence number of data packet that report message includes above-mentioned maximum sequence number and loss, base station to Target WLAN convergence units, which send downlink data packet, to be shown as：Stored in base station first specified data packet and second are referred to Determine data packet and is sent to target WLAN convergence units；Report message is transmitted in the state that the source WLAN convergence units received are sent Include the above-mentioned data packet sent not successfully sequence number and loss data packet sequence number in the case of, base station is to target WLAN convergence units, which send downlink data packet, to be shown as：The third stored in base station is specified into data packet and the second specified number It is sent to target WLAN according to packet and converges unit；But it is not limited to this.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on this understanding, technical scheme of the present invention is substantially in other words to existing The part that technology contributes can be expressed in the form of software products, which is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal equipment (can be mobile phone, calculate Machine, server or network equipment etc.) execute method described in each embodiment of the present invention.

Embodiment 2

A kind of WLAN convergences unit change device is additionally provided in the present embodiment, and the device is for realizing above-described embodiment And preferred embodiment, carried out repeating no more for explanation.As used below, term " module " may be implemented to make a reservation for The combination of the software and/or hardware of function.It is hard although device described in following embodiment is preferably realized with software The realization of the combination of part or software and hardware is also that may and be contemplated.

Fig. 2 is the structure diagram of WLAN convergences unit change device according to the ... of the embodiment of the present invention, as shown in Fig. 2, the dress Set including：

First request module 22, for being WLAN money of the terminal distribution for WLAN convergences to target WLAN convergence units Source；

First receiving module 24 is connect with above-mentioned first request module 22, and unit is converged for receiving the target WLAN The confirmation message of the agreement request of return；

Second request module 26 is connect with above-mentioned first receiving module 24, for being discharged to source WLAN convergence unit requests The source WLAN convergences unit is the WLAN resources of the terminal distribution.By above-mentioned apparatus, since the first receiving module 24 exists Receive the same confirmation letter for meaning terminal distribution for the WLAN WLAN resources converged that the target WLAN convergences unit returns After breath, it is the terminal distribution that 26 ability of the second request module discharges the source WLAN convergences unit to source WLAN convergence unit requests WLAN resources so that terminal moving process can continue to keep WLAN connection, it is ensured that data will not lose, because This, can solve in the related technology, and for terminal under the control of base station, loss of data can be led to by being altered to new WLAN convergence units The problem of, it ensure that the continuity of business.

It should be noted that above-mentioned first request module 22 can send demand signalling by converging unit to target WLAN Realize request distribution resource, and above-mentioned demand signalling can be WLAN convergence unit addition demand signallings, i.e. WT addition Request signalings, but it is not limited to this, and wherein WT is the abbreviation that WLAN converges unit；Above-mentioned confirmation message can be that WLAN converges Poly- unit adds request confirmation signaling, i.e. WT addition request Acknowledge, but it is not limited to this.

It should be noted that request release resource can also be realized by signaling in above-mentioned second request module 24, such as Source WLAN is allow to converge the WLAN resources that unit is released to base station distribution, and then base station and source by discharging demand signalling WLAN convergence units are disconnected connection.

In one embodiment of the invention, above-mentioned apparatus can also include：First receiving module, with above-mentioned first request Module 22 connects, the measurement report for receiving terminal transmission；Wherein, the WLAN accesses preserved on carried terminal in measurement report The mark of other WLAN access points except point list；Other WLAN access point identities are corresponding with target WLAN convergence units 's.

It should be noted that above-mentioned measurement report can be when following event occurs, terminal is sent to the measurement of base station Report：The measurement result of WLAN access points in WLAN access point lists is below the first threshold value；And there are WLAN access points The measurement result of WLAN access points except list is higher than the second threshold value；Wherein, the first threshold value is less than or equal to second Threshold value.

In one embodiment of the invention, above-mentioned apparatus can also include：First sending module, with above-mentioned second request Module 26 connects, for sending radio resource control RRC connection reconfiguration signaling to terminal；Wherein, it is wrapped in RRC connection reconfigurations signaling It includes：The mark of the access point of WLAN corresponding with target WLAN convergence units.It will be with target by above-mentioned first sending module WLAN converges the identification notification terminal of the access point of the corresponding WLAN of unit so that terminal can be based on and target WLAN money orders The mark of the access point of the corresponding WLAN of member is connected to target WLAN convergence units.

In one embodiment of the invention, above-mentioned apparatus can also include：Second sending module is sent with above-mentioned first Module connects, and target WLAN is had been coupled to for receiving the terminal that is used to indicate that target WLAN convergence units are sent in base station It converges the connection confirmation message of unit and/or base station receives the terminal that is used to indicate that terminal is sent and has been coupled to target After WLAN converges the connection status report message of unit, downlink data packet is sent to target WLAN convergence units；Alternatively, second connects Module is received, is connect with above-mentioned first sending module, for receiving being used to indicate for target WLAN convergence unit transmissions in base station Terminal have been coupled to target WLAN convergence unit connection confirmation message and/or base station receive terminal transmission for referring to After showing that terminal has been coupled to the connection status report message of target WLAN convergence units, received eventually from target WLAN convergence units Hold the upstream data packet sent.

In one embodiment of the invention, above-mentioned apparatus can also include：Third receiving module, with above-mentioned second request Module 26 connects, and report message is transmitted for receiving the state that WLAN convergence units in source are sent；Wherein, state transmits report message It include at least one of parameter：The maximum sequence number being successfully sent in the sequence number of multiple data packets of terminal； The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully.

It should be noted that described device third receiving module receive source WLAN convergence unit send state Transmit the maximum sequence number in the sequence number that report message includes the multiple data packets for being successfully sent to the terminal In the case of, second sending module is additionally operable to the will be stored in base station first specified data packet and is sent to the target WLAN Converge unit；Wherein, the sequence number of the described first specified data packet is more than the maximum sequence number；It is connect in the third of described device It receives the state that the source WLAN convergence units that module receives are sent and transmits the sequence number that report message includes the data packet lost In the case of, second sending module is additionally operable to the will be stored in base station second specified data packet and is sent to the target WLAN converges unit；Wherein, the sequence number of the described second specified data packet is equal to the sequence number of the data packet of the loss；Institute It includes failed to state the state that the source WLAN convergence units that the third receiving module of device receives are sent and transmit report message In the case of the sequence number of the data packet of transmission, second sending module is additionally operable to the specified number of the third stored in base station It is sent to the target WLAN according to packet and converges unit；Wherein, the third specifies the sequence number of data packet to be equal to described failed The sequence number of the data packet of transmission.

It should be noted that above-mentioned apparatus can be located in base station, but it is not limited to this.

It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong Following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with arbitrary The form of combination is located in different processors.

Embodiment 3

The embodiment of the present invention additionally provides a kind of base station, and Fig. 3 is that the structure of the base station provided according to embodiments of the present invention is shown It is intended to, as shown in figure 3, the base station includes：

Transmitting device 32, for being to target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests Terminal distribution is used for the WLAN resources of WLAN convergences；And it is asked described in the agreement that the target WLAN convergences unit returns receiving After the confirmation message asked, the WLAN that the source WLAN convergences unit is the terminal distribution is discharged to source WLAN convergences unit requests Resource.

By above-mentioned base station, due to same meaning that terminal distribution is used for receive that the target WLAN convergences unit returns After the confirmation message of the WLAN resources of WLAN convergences, just discharging the source WLAN convergences unit to source WLAN convergence unit requests is The WLAN resources of the terminal distribution so that terminal can continue to keep the connection of WLAN in moving process, it is ensured that data It will not lose, therefore, can solve in the related technology, terminal is altered to new WLAN convergence unit meetings under the control of base station The problem of leading to loss of data, ensure that the continuity of business.

It should be noted that above-mentioned transmitting device 32 can send demand signalling realization by converging unit to target WLAN Request distribution resource, and above-mentioned demand signalling can be WLAN convergence unit addition demand signallings, i.e. WT addition Request signalings, but it is not limited to this, and wherein WT is the abbreviation that WLAN converges unit；Above-mentioned confirmation message can be that WLAN converges Poly- unit adds request confirmation signaling, i.e. WT addition request Acknowledge, but it is not limited to this.

It should be noted that can also realize request release resource by signaling in above-mentioned transmitting device 32, for example pass through Release demand signalling allows WLAN convergence units in source to be released to the WLAN resources that base station is distributed, and then base station is converged with source WLAN Poly- unit is disconnected connection.

In one embodiment of the invention, above-mentioned transmitting device 32 can be also used for receiving the measurement report that terminal is sent It accuses；Wherein, the mark of other WLAN access points except the WLAN access point lists preserved on carried terminal in measurement report；Its It is corresponding that his WLAN access point identities converge unit with target WLAN.

In one embodiment of the invention, above-mentioned transmitting device 32 can be also used for sending radio resource control to terminal RRC connection reconfigurations signaling processed；Wherein, RRC connection reconfigurations signaling includes：Connecing for the corresponding WLAN of unit is converged with target WLAN The mark of access point.

In one embodiment of the invention, above-mentioned transmitting device 32 can be also used for receiving target WLAN in base station What convergence unit was sent is used to indicate connection confirmation message and/or base station that terminal has been coupled to target WLAN convergence units Being used to indicate after terminal has been coupled to the connection status report message of target WLAN convergence unit for terminal transmission is received, to Target WLAN convergence units send downlink data packet；Alternatively, receiving the upstream data that terminal is sent from target WLAN convergence units Packet.

In one embodiment of the invention, above-mentioned transmitting device 32 can be also used for reception source WLAN convergence unit transmissions State transmit report message；Wherein, it includes at least one of parameter that state, which transmits report message,：It has been successfully sent to Maximum sequence number in the sequence number of multiple data packets of terminal；The sequence number of the data packet of loss；The data sent not successfully The sequence number of packet.

It should be noted that above-mentioned transmitting device 32 can be also used for the shape sent in the source WLAN convergence units received State transmits the maximum sequence number in the sequence number that report message includes the multiple data packets for being successfully sent to the terminal In the case of, the stored in base station first specified data packet is sent to the target WLAN and converges unit；And/or it is receiving To source WLAN convergence unit send state transmit report message include lose data packet sequence number in the case of, by The the second specified data packet stored in base station is sent to the target WLAN convergences unit；And/or it is converged in the source WLAN received It, will be in base station in the case that the state that poly- unit is sent transmits the sequence number that report message includes the data packet sent not successfully The third of storage specifies data packet to be sent to the target WLAN convergences unit；Wherein, the sequence of the described first specified data packet Number be more than the maximum sequence number；The sequence number of the second specified data packet is equal to the sequence number of the data packet of the loss； The third specifies the sequence number of data packet equal to the sequence number of the data packet sent not successfully.

Embodiment 4

The embodiment of the present invention additionally provides a kind of system, which includes：Base station, terminal, Target Wireless LAN WLAN It converges unit and source WLAN converges unit；Wherein, the base station, for converging target described in unit requests to the target WLAN It is the WLAN resources that the terminal distribution is used for WLAN convergences that WLAN, which converges unit,；And receiving the target WLAN convergences After the confirmation message for the agreement request that unit returns, the source WLAN convergences are discharged to source WLAN convergence unit requests Unit is the WLAN resources of the terminal distribution.

In one embodiment of the invention, above-mentioned terminal can be used for when following event occurs, and be sent out to above-mentioned base station Send measurement report：The measurement result of WLAN access points in WLAN access point lists is below the first threshold value；And there are WLAN The measurement result for accessing the WLAN access points except point list is higher than the second threshold value；Wherein, the first threshold value is less than or waits In the second threshold value；Wherein, other WLAN accesses except the WLAN access point lists preserved on carried terminal in measurement report The mark of point；Other WLAN access point identities are corresponding with target WLAN convergence units.

In one embodiment of the invention, above-mentioned base station can be also used for the shape that WLAN convergence units in reception source are sent State transmits report message；Wherein, it may include at least one of parameter that above-mentioned state, which is transmitted in report message,：Successfully send out Give the maximum sequence number in the sequence number of multiple data packets of terminal；The sequence number of the data packet of loss；It sends not successfully The sequence number of data packet；Base station is additionally operable in the case where it includes the maximum sequence number that the state, which transmits report message, Stored in base station first specified data packet is sent to the target WLAN and converges unit；And/or it transmits and reports in the state In the case of accusing the sequence number of data packet that message includes the loss, the stored in base station second specified data packet is sent Unit is converged to the target WLAN；And/or it includes the data sent not successfully to transmit report message in the state In the case of the sequence number of packet, specifies data packet to be sent to the target WLAN third stored in base station and converge unit；Its In, the sequence number of the first specified data packet is more than the maximum sequence number；The sequence number etc. of the second specified data packet In the sequence number of the data packet of the loss；The third specifies the sequence number of data packet to be equal to the data sent not successfully The sequence number of packet.

Embodiment 5

The embodiments of the present invention also provide a kind of storage mediums.Optionally, in the present embodiment, above-mentioned storage medium can With the program code being arranged to the step of storage for executing the method in embodiment 1.

Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or The various media that can store program code such as CD.

Optionally, in the present embodiment, processor is executed according to stored program code in storage medium in embodiment 1 Method the step of.

Optionally, the specific example in the present embodiment can refer to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.

In order to better understand the present invention, the present invention is further explained below in conjunction with preferred embodiment.

In order to ensure that business continuance, data are not lost, a kind of method of preferred embodiment of the present invention offer：Base station passes through Measurement event is configured to terminal, and after receiving the measurement report of terminal, being first coupled to needs target WLAN money orders to be changed In member, then again determine successful connection after disconnect again with source WLAN converge unit connection, finally reinform UE be connected to it is new WLAN access points, data are forwarded to target WLAN convergence units, do not lose simultaneously.

It should be noted that in a preferred embodiment of the invention, UE indicates that terminal, eNB indicate base station, source indicated with S-WT WLAN converges unit, indicates that target WLAN converges unit with T-WT.

Preferred embodiment 1

Scene：Terminal supports LTE and WLAN to converge, and under the instruction of base station, is carried out using LTE and WLAN convergence technologies Data transmission further includes the WLAN access point lists that WT is managed in instruction of base station during this.It is base that WLAN, which accesses point list, It stands and is obtained from WT.

Fig. 4 is the flow diagram that unit variation is converged according to the WLAN that the preferred embodiment of the present invention 1 provides, and is such as schemed Shown in 4, this method includes：

Step 1, base station are configured to terminal sending measuring, and instruction terminal is sent out when event defined below occurs to base station Send measurement report：

Event W：The measurement result of WLAN access points in all WLAN accesses point lists is below threshold value Threshold1, the measurement result for existing simultaneously other WLAN access points except WLAN access point lists are higher than Threshold2. here, measurement result can be WLAN access points signal quality or signal strength or other can be anti- Mirror the value of WLAN access point signals quality and intensity.

Step 2, terminal send measurement report when judging that event occurs to base station, wherein also wrap expansion event in report and retouch The mark of the WLAN access points except WLAN access point lists described in stating.

It should be noted that above-mentioned steps 1 and 2 can change wherein as triggering WT (abbreviation of WLAN convergence units) A kind of condition.

Step 3, base station send WT addition request signalings (being equivalent to the demand signalling in above-described embodiment) to Target WT asks WLAN resources to WT.

If step 4, target WT can fully meet or partly meet the resource of base station requests, WT is sent Addition request Acknowledge (are equivalent to the response signaling in above-described embodiment).The signaling is for notifying base It stands, agrees to the resource request of base station.

Step 5, after receiving the WT addition request Acknowledge signalings that target WT is sent, base station Send WT release request signalings and be equivalent to the release demand signalling in above-described embodiment) it is released to source WT, request source WT Put the WLAN resources distributed before.

Step 6, base station send RRC Connection Reconfiguration signalings and (are equivalent in above-described embodiment RRC connection reconfigurations signaling) terminal is given, wherein including the configuration information of new WLAN.

Step 7, terminal preserve new configuration information, and in response, send RRC Connection Reconfiguration Complete signalings are to base station.

Step 8, according to new configuration information, terminal is connected to target WT.

Step 9, target WT send WT Association Confirmation and (are equivalent to the connection in above-described embodiment Confirmation message) give base station, instruction terminal to have been coupled to the WT.

Alternatively,

Step 10, terminal can also send WLAN Connection Status Report message and (be equivalent to above-mentioned implementation Connection status report message in example) base station is given, indicate that it has been coupled to target WT.

It should be noted that：Relative to step 9, step 10 is a supplement to it, and terminal can send this message It can not also send.

After receiving the WT Association Confirmation that target WT is sent, base station thinks terminal It is connected to target WT, the downlink data for being sent to the terminal can will be needed to be sent to target WT or receive the end from target WT Hold the upstream data sent.

Preferred embodiment 2

Fig. 5 is the flow diagram that unit variation is converged according to the WLAN that the preferred embodiment of the present invention 2 provides, and is such as schemed Shown in 5, this method includes：

It should be noted that above-mentioned two step can change be wherein as triggering WT (abbreviation of WLAN convergence units) A kind of condition.

Step 3, base station send WT addition request signalings and give target WT, and WLAN resources are asked to WT.

If step 4, target WT can fully meet or partly meet the resource of base station requests, WT is sent addition request Acknowledge.The signaling agrees to the resource request of base station for notifying base station.

Step 5, after receiving the WT addition request Acknowledge signalings that target WT is sent, base station Sending WT release request signalings gives source WT, request source WT to discharge the WLAN resources distributed before.

Step 6, source WT send WT Status Delivery Report message to base station, include following ginseng in the message Several one or more：

1) it has been successfully sent to the highest serial number of the data packet of terminal

2) the data packet sequence row number lost or the data packet sequence row number sent not successfully

Step 7, base station send RRC Connection Reconfiguration signalings to terminal, wherein including new The configuration information of WLAN.

Step 8, terminal preserve new configuration information, and in response, send RRC Connection Reconfiguration Complete signalings are to base station.

Step 9, according to new configuration information, terminal is connected to target WT.

Step 10, target WT send WT Association Confirmation to base station, and instruction terminal has been coupled to The WT.

Alternatively,

Step 11, terminal can also send WLAN Connection Status Report message to base station, indicate it Through being connected to target WT.

Note：Relative to the 10th step, 11 steps can send this message and can not also send out to its a supplement, terminal It send.

Wherein, downlink data packet is sent to target WT and is specially：Parameter in the message sent according to source WT in step 6, If including being successfully sent to the highest serial number of the data packet of terminal, sends the sequence number stored in base station and be more than institute The data packet of highest serial number is stated to target WT, if the data packet sequence row number lost or the sequence of data packet sent not successfully Number, then the data packet to transmit Sequence Number equal to the sequence number to target WT.For example, source WT, which feeds back to base station, sends successful highest Sequence number is 115, while the sequence number for feeding back lost data packets is 58,59,60.It is 58,59,60 that then base station, which sends sequence number, 116,117 ... data packet gives target WT.

Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed by computing device in the storage device, and in some cases, it can be with different from shown in sequence execution herein The step of going out or describing, either they are fabricated to each integrated circuit modules or by them multiple modules or Step is fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hardware and softwares to combine.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of WLAN converges unit variation, which is characterized in that including：

Base station is used for target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests for terminal distribution The WLAN resources of WLAN convergences；

The base station is after the confirmation message for receiving the agreement request that the target WLAN convergences unit returns, Xiang Yuan WLAN convergences unit requests discharge the WLAN resources that the source WLAN convergences unit is the terminal distribution.

2. according to the method described in claim 1, it is characterized in that, being asked to Target Wireless LAN WLAN convergence units in base station It is that terminal distribution is used for before the WLAN resources of WLAN convergences to seek the target WLAN convergences unit, and the method further includes：

The base station receives the measurement report that the terminal is sent；Wherein, it carries in the measurement report and is preserved in the terminal WLAN access point list except other WLAN access points mark.

3. according to the method described in claim 2, it is characterized in that, the measurement report be when following event occurs, it is described Terminal is sent to the measurement report of the base station：

The measurement result of WLAN access points in the WLAN accesses point list is below the first threshold value；And there are WLAN accesses The measurement result of WLAN access points except point list is higher than the second threshold value.

4. according to the method described in claim 1, it is characterized in that, discharging the source WLAN to source WLAN convergence unit requests After converging the WLAN resources that unit is the terminal distribution, the method further includes：

The base station sends radio resource control RRC connection reconfiguration signaling to the terminal；Wherein, the RRC connection reconfigurations letter Order includes：The mark of the access point of WLAN corresponding with target WLAN convergence units.

5. according to the method described in claim 4, it is characterized in that, sending RRC connection reconfiguration signalings to terminal in the base station Later, the method further includes：

The base station receive that target WLAN convergence unit sends be used to indicate the terminal have been coupled to it is described It is described that the connection confirmation message of target WLAN convergence units and/or the base station receive being used to indicate for the terminal transmission After terminal has been coupled to the connection status report message of target WLAN convergence unit, the base station is to the target WLAN Convergence unit sends downlink data packet or the base station and receives the upper of the terminal transmission from target WLAN convergence units Row data packet.

6. the method according to any one of claims 1 to 5, it is characterized in that, being released to source WLAN convergences unit requests After putting the WLAN resources that the source WLAN convergences unit is the terminal distribution, the method further includes：

The base station receives the state that the source WLAN convergences unit is sent and transmits report message；Wherein, the state transmits report It includes at least one of parameter to accuse message：

The maximum sequence number being successfully sent in the sequence number of multiple data packets of the terminal；

The sequence number of the data packet of loss；

The sequence number of the data packet sent not successfully.

7. according to the method described in claim 5, it is characterized in that,

It includes being successfully sent to the end to transmit report message in the state that the source WLAN convergence units received are sent In the case of maximum sequence number in the sequence number of multiple data packets at end, under the base station is sent to target WLAN convergence units Row data packet includes：Stored in base station first specified data packet is sent to the target WLAN and converges unit by the base station； Wherein, the sequence number of the described first specified data packet is more than the maximum sequence number.

8. according to the method described in claim 5, it is characterized in that,

The sequence number that report message includes the data packet lost is transmitted in the state that the source WLAN convergence units received are sent In the case of, the base station sends downlink data packet to target WLAN convergence units and includes：Stored in base station second is specified Data packet is sent to the target WLAN convergences unit；Wherein, the sequence number of the described second specified data packet is equal to the loss Data packet sequence number.

9. according to the method described in claim 5, it is characterized in that,

It includes the data packet sent not successfully to transmit report message in the state that the source WLAN convergence units received are sent In the case of sequence number, the base station sends downlink data packet to target WLAN convergence units and includes：Will stored in base station Three specified data packets are sent to the target WLAN convergences unit；Wherein, the third specifies the sequence number of data packet to be equal to institute State the sequence number of the data packet sent not successfully.

10. a kind of WLAN converges unit change device, which is characterized in that including：

First request module, for being eventually to target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests WLAN resource of the end distribution for WLAN convergences；

First receiving module, the confirmation message for receiving the agreement request that the target WLAN convergences unit returns；

Second request module is the terminal distribution for discharging the source WLAN convergences unit to source WLAN convergence unit requests WLAN resources.

11. device according to claim 10, which is characterized in that described device further includes：First receiving module is used In the measurement report for receiving the terminal transmission；Wherein, the WLAN accesses preserved in the terminal are carried in the measurement report The mark of other WLAN access points except point list.

12. according to the devices described in claim 11, which is characterized in that described device further includes：First sending module, for The terminal sends radio resource control RRC connection reconfiguration signaling；Wherein, the RRC connection reconfigurations signaling includes：With it is described The mark of the access point of the corresponding WLAN of target WLAN convergence units.

13. device according to claim 12, which is characterized in that described device further includes：

Second sending module has been used to indicate the terminal for receive that target WLAN convergence unit sends in base station Through being connected to, the target WLAN converges the connection confirmation message of unit and/or base station receives being used for for the terminal transmission After indicating that the terminal has been coupled to the connection status report message of the target WLAN convergences unit, to the target WLAN It converges unit and sends downlink data packet；Alternatively,

Second receiving module has been used to indicate the terminal for receive that target WLAN convergence unit sends in base station Through being connected to, the target WLAN converges the connection confirmation message of unit and/or base station receives being used for for the terminal transmission After indicating that the terminal has been coupled to the connection status report message of the target WLAN convergences unit, from the target WLAN Convergence unit receives the upstream data packet that the terminal is sent.

14. the device according to any one of claim 10 to 13, which is characterized in that described device further includes：

Third receiving module transmits report message for receiving the state that the source WLAN convergences unit is sent；Wherein, the shape It includes at least one of parameter that state, which transmits report message,：It has been successfully sent to the sequence of multiple data packets of the terminal Maximum sequence number in number；The sequence number of the data packet of loss；The sequence number of the data packet sent not successfully.

15. device according to claim 13, which is characterized in that

It is wrapped in the state that the source WLAN convergence units that the third receiving module of described device receives are sent transmits report message In the case of including the maximum sequence number in the sequence number for the multiple data packets for being successfully sent to the terminal, second hair Module is sent, the will be stored in base station first specified data packet is additionally operable to and is sent to the target WLAN convergences unit；Wherein, described The sequence number of first specified data packet is more than the maximum sequence number.

16. device according to claim 13, which is characterized in that

It is wrapped in the state that the source WLAN convergence units that the third receiving module of described device receives are sent transmits report message In the case of the sequence number for including the data packet of loss, second sending module, be additionally operable to store in base station second is specified Data packet is sent to the target WLAN convergences unit；Wherein, the sequence number of the described second specified data packet is equal to the loss Data packet sequence number.

17. device according to claim 13, which is characterized in that

It is wrapped in the state that the source WLAN convergence units that the third receiving module of described device receives are sent transmits report message In the case of the sequence number for including the data packet sent not successfully, second sending module is additionally operable to will be stored in base station Three specified data packets are sent to the target WLAN convergences unit；Wherein, the third specifies the sequence number of data packet to be equal to institute State the sequence number of the data packet sent not successfully.

18. a kind of base station, which is characterized in that including：

Transmitting device, for being terminal point to target WLAN convergence units described in Target Wireless LAN WLAN convergence unit requests It is used in the WLAN resources of WLAN convergences；And receiving the agreement request of the target WLAN convergences unit return really After recognizing information, the WLAN resources that the source WLAN convergences unit is the terminal distribution are discharged to source WLAN convergences unit requests.

19. base station according to claim 18, which is characterized in that the transmitting device is additionally operable to receive the survey that terminal is sent Amount report；Wherein, other WLAN except the WLAN access point lists preserved in the terminal are carried in the measurement report to connect The mark of access point.

20. base station according to claim 18, which is characterized in that the transmitting device is additionally operable to send to terminal wireless Resources control RRC connection reconfiguration signalings；Wherein, the RRC connection reconfigurations signaling includes：Unit is converged with the target WLAN The mark of the access point of corresponding WLAN.

21. base station according to claim 20, which is characterized in that the transmitting device is additionally operable to receive institute in base station State the connection for being used to indicate the terminal and having been coupled to the target WLAN convergences unit that target WLAN convergence units are sent Confirmation message and/or base station receive the terminal that is used to indicate that the terminal is sent and have been coupled to the target WLAN After the connection status report message for converging unit, downlink data packet is sent to target WLAN convergence units；Alternatively, from described Target WLAN convergence units receive the upstream data packet that the terminal is sent.

22. the base station according to any one of claim 18 to 21, which is characterized in that the transmitting device is additionally operable to receive The state that the source WLAN convergences unit is sent transmits report message；Wherein, it includes following that the state, which transmits report message, At least one parameter：The maximum sequence number being successfully sent in the sequence number of multiple data packets of the terminal；It loses The sequence number of data packet；The sequence number of the data packet sent not successfully.

23. base station according to claim 18, which is characterized in that

The transmitting device is additionally operable to transmit report message in the state that the source WLAN convergence units received are sent to include In the case of maximum sequence number in the sequence number of multiple data packets through being successfully sent to the terminal, by what is stored in base station First specified data packet is sent to the target WLAN convergences unit；And/or sent in the source WLAN convergence units received In the case that state transmits the sequence number that report message includes the data packet lost, by the stored in base station second specified data Packet is sent to the target WLAN convergences unit；And/or the state sent in the source WLAN convergence units received transmits report In the case that message includes the sequence number of the data packet sent not successfully, data packet is specified to send the third stored in base station Unit is converged to the target WLAN；Wherein, the sequence number of the described first specified data packet is more than the maximum sequence number；It is described The sequence number of second specified data packet is equal to the sequence number of the data packet of the loss；The third specifies the sequence number of data packet Equal to the sequence number of the data packet sent not successfully.

24. a kind of system, which is characterized in that including：Base station, terminal, Target Wireless LAN WLAN convergence units and source WLAN Converge unit；

The base station, for being the terminal distribution to target WLAN convergence units described in target WLAN convergence unit requests WLAN resources for WLAN convergences；And receiving the agreement request of the target WLAN convergences unit return really After recognizing information, discharges the WLAN that the source WLAN convergences unit is the terminal distribution to source WLAN convergences unit requests and provide Source.

25. system according to claim 24, which is characterized in that the terminal is used for when following event occurs, to institute It states base station and sends measurement report：

The measurement result of WLAN access points in the WLAN accesses point list is below the first threshold value；And there are WLAN accesses The measurement result of WLAN access points except point list is higher than the second threshold value；

Wherein, other WLAN access points except the WLAN access point lists preserved in the terminal are carried in the measurement report Mark.

26. system according to claim 24, which is characterized in that the base station is additionally operable to receive the source WLAN convergences The state that unit is sent transmits report message；Wherein, it includes at least one of parameter that the state, which transmits report message,： Maximum sequence number in the sequence number of multiple data packets through being successfully sent to the terminal；The sequence number of the data packet of loss； The sequence number of the data packet sent not successfully；

The base station is additionally operable in the case where it includes the maximum sequence number that the state, which transmits report message, by base station First specified data packet of middle storage is sent to the target WLAN convergences unit；And/or transmit report message in the state Include the data packet of the loss sequence number in the case of, the stored in base station second specified data packet is sent to described Target WLAN converges unit；And/or transmit the sequence that report message includes the data packet sent not successfully in the state In the case of row number, specifies data packet to be sent to the target WLAN third stored in base station and converge unit；Wherein, described The sequence number of first specified data packet is more than the maximum sequence number；The sequence number of the second specified data packet is equal to described lose The sequence number of the data packet of mistake；The third specifies the sequence number of data packet equal to the sequence of the data packet sent not successfully Number.