CN103379590A - Data transmission method and device - Google Patents
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- CN103379590A CN103379590A CN2012101246813A CN201210124681A CN103379590A CN 103379590 A CN103379590 A CN 103379590A CN 2012101246813 A CN2012101246813 A CN 2012101246813A CN 201210124681 A CN201210124681 A CN 201210124681A CN 103379590 A CN103379590 A CN 103379590A
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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Abstract
The invention discloses a data transmission method and device. The data transmission method comprises the following steps that an access-network network element receives the connection information of a multi-mode terminal in a first WLAN network, wherein the multi-mode terminal can at least be accessed to the network where the access-network network element is arranged and the first WLAN network; when the access-network network element judges that a current network and the first WLAN network can implement joint transmission, the access-network network element can distribute parts or all of transmitted data of the multi-mode terminal. According to the data transmission method and device, the problem that joint transmission or distribution cannot be achieved when two subsequent ways are accessed is solved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of data transmission method and device.
Background technology
Along with the continuous evolution of wireless communication technology and standard, mobile Packet Service has obtained huge development, and the data throughput capabilities of unit/terminal is constantly promoting.With Long Term Evolution (Long Term Evolution, LTE) system is example, in the 20M bandwidth, can support the transfer of data of descending maximum rate 100Mbps, in the LTE of follow-up enhancing (LTE Advanced) system, data transfer speed will further promote, even can reach 1Gbps.
The growth of terminal data traffic carrying capacity expansion type, make existing Internet resources gradually unable to do what one wishes, especially in the situation that the communication technology of new generation (such as 3G, LTE) also can't extensively be arranged net, the thing followed is that user rate and traffic demand can't satisfy, the variation that the user experiences.How preventing and changing this situation is the problem that operator must consider, needs to accelerate on the one hand popularization and the network design of new technology; On the other hand, hope can be by strengthening existing network and technology, to reach the purpose of fast lifting network performance.Well-known, at third generation partner program (The 3rd Generation Partnership Project, outside the radio network technique that 3GPP) provides, current WLAN (wireless local area network) (the Wireless LocalArea Network that has generally used, WLAN), especially the WLAN (wireless local area network) based on Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11 standards is widely used in the focus access covering in family, enterprise or even the Internet.Wherein most widely used by the technical specification of WiFi alliance (Wi-Fi Alliance) proposition, therefore the WiFi network is often followed based on the wlan network of IEEE 802.11 standards and is equivalent in the reality, do not causing in the situation about obscuring, hereinafter also adopting the WiFi module to describe wireless receiving and dispatching and the processing module of supporting WLAN in the network node.
Under this prerequisite, the operator that has and company have proposed WLAN and existing 3GPP network are merged, and realize joint transmission, to reach the purpose of load shunting and raising network performance.Although 3GPP has formulated the related protocol of 3GPP network and wlan network intercommunication (Interworking) now, but part also comes with some shortcomings in the present Interworking framework, such as end user device (User Equipment, data flow is switched slower when UE) moving between 3GPP network and wlan network, the data flow of two networks all needs the core network element through 3GPP in this case in addition, causes duty ratio larger.Also has in addition the very important point, current this framework still depends on operator can the independently wlan network of 3GPP network and independent completion, this just requires simultaneously operation maintenance of the operator network of throwing the net more, and operation cost expenditure (Capital Expenditure, CAPEX) is larger.Therefore the further fusion demand of WLAN and 3GPP network is proposed again, and new solution is also in progressively being proposed and discussing.
In the scheme that different manufacturers proposes, Intel (Intel) has proposed a kind of network integration scheme of similar carrier aggregation, and wherein the scheme general architecture as shown in Figure 1.Wherein, WLAN is not re-used as a separate network and exists, exist but only connect as data of the transmission between Access Network and the terminal in the existing 3GPP network, and Access Network is to transmit based on the connection of 3GPP network the main management of UE with the partial data transmission of being connected, this is similar to carrier aggregation, namely utilize the connection of 3GPP network as main carrier, and the WLAN that the WiFi module of utilizing Access Network to be connected with UE is set up connect as the shunting of auxiliary carrier wave realization to transmitting on the main carrier.Yet under this framework, 3GPP and WLAN are still two independently access networks; Operator's demand also requires can not revise the WiFi agreement in order to guarantee the compatibility of WiFi equipment in addition, when this also causes UE to access respectively 3GPP network and access WLAN, is unwitting mutually.Even the WiFi module of Access Network and network side is common station, agreement still can't guarantee both interoperability at present.This just causes the Intel scheme can't realize joint transmission or the shunting of follow-up two-way access.
For the joint transmission that can't realize follow-up two-way access in the correlation technique or the problem of shunting, effective solution is proposed not yet at present.
Summary of the invention
For the joint transmission that can't realize follow-up two-way access in the correlation technique or the problem of shunting, the invention provides a kind of data transmission method and device, to address the above problem at least.
According to an aspect of the present invention, a kind of data transmission method is provided, comprise: access network elements receives multimode terminal in the link information of the first WLAN (wireless local area network) wlan network, wherein, described multimode terminal can access current network and described first wlan network at described access network elements place at least; When described access network elements determined that according to described link information described current network can be implemented joint transmission with described the first wlan network, described access network elements was diverted to described the first wlan network with the part or all of the transmission of data of described multimode terminal.
Preferably, described access network elements is diverted to the part or all of the transmission of data of described multimode terminal after described the first wlan network, and also comprise: described access network elements receives the link information of described multimode terminal in the second wlan network; When described access network elements determines that according to link information corresponding to described the second wlan network described current network can be implemented joint transmission with described the second wlan network, described access network elements stops the shunting to described the first wlan network, and the part or all of the transmission of data of described multimode terminal is diverted to described the second wlan network.
Preferably, described link information comprises: the wlan network information of described multimode terminal access and/or the terminal link information of described multimode terminal self.
Preferably, described wlan network information comprise following one of at least: the basic service set identification BSSID of described WLAN; The service set SSID of described WLAN; The extended service set identification ESSID of described WLAN; The channel information of described WLAN; The media access control MAC address of the access point of described wlan network.
Preferably, described multimode terminal link information comprise following one of at least: the address information of described multimode terminal in described wlan network, wherein, described address information comprises media access control MAC address or Internet Protocol IP address; The association identification AID that described multimode terminal is set up at described WLAN.
Preferably, described access network elements determines that according to described link information described current network can implement joint transmission with described the first wlan network, comprise: the wlan network information that the integrated WLAN access point function of the wlan network information in the described link information and described access network elements is corresponding is identical, and in the time of can finding the terminal link information corresponding with multimode terminal in the described link information in described the first wlan network, described access network elements determines that described current network can implement joint transmission with described the first wlan network; Perhaps at least one of the pre-configured wlan network information that is used for shunting of the wlan network information in the described link information and described access network elements consistent, and in the time of can finding the terminal link information corresponding with multimode terminal in the described link information in described the first wlan network, described access network elements determines that described current network can implement joint transmission with described the first wlan network.
Preferably, described access network elements receives after the described link information, the part or all of the transmission of data of described multimode terminal is diverted to before described the first wlan network, comprise: described access network elements sends indication information to described multimode terminal, indicate described multimode terminal whether to carry out the network at self place and the joint transmission of described the first wlan network, wherein, described indication information comprises: described wlan network information and/or whether carry out joint transmission indication.
Preferably, described access network elements receives described link information, comprising: described access network elements receives the described link information that described multimode terminal reports by existing space interface signaling; Perhaps described access network elements receives the described link information that described multimode terminal reports by newly-increased idle message.
Preferably, described access network elements comprises the network element node of the Access Network of third generation partner program 3GPP different radio access technologies RAT.
Preferably, described access network elements comprise following one of arbitrarily: the evolution base station eNB in the long evolving system LTE network; RNS RNS in the universal mobile telecommunications system UMTS network, wherein, described RNS comprises radio network controller (RNC) and base station node B; Base station system BSS in the global system for mobile communications GSM network, wherein, described BSS comprises base station controller BSC and base station BTS.
According to a further aspect in the invention, a kind of data transmission device is provided, be arranged in the access network elements, comprise: receiver module, be used for receiving multimode terminal in the link information of the first WLAN (wireless local area network) wlan network, wherein, described multimode terminal can access current network and described first wlan network at described access network elements place at least; Diverter module is used for when determining that according to described link information described current network can be with described the first wlan network enforcement joint transmission, and the part or all of the transmission of data of described multimode terminal is diverted to described the first wlan network.
Preferably, described receiver module also is used for receiving described multimode terminal in the link information of the second wlan network; Described diverter module, also be used for when determining that according to link information corresponding to described the second wlan network described current network can be implemented joint transmission with described the second wlan network, stop the shunting to described the first wlan network, the part or all of the transmission of data of described multimode terminal is diverted to described the second wlan network.
In embodiments of the present invention, access network elements receives multimode terminal in the link information of the first wlan network, and wherein, multimode terminal can access current network and first wlan network at access network elements place at least; When access network elements determined that according to link information current network can be implemented joint transmission with the first wlan network, access network elements was diverted to the first wlan network with the part or all of the transmission of data of multimode terminal.In this example, multimode terminal still can be respectively by existing flow process access Access Network (for example 3GPP Access Network) and WLAN access point, diverter function is to realize data distribution between the 3GPP access network elements that network side is realized and WLAN access point, not relating to end side revises, guarantee the compatibility of WiFi terminal equipment, also do not needed in addition to revise existing WiFi agreement; Multimode terminal is known the inside story for the network self of its access through same access network elements access network, has guaranteed the interoperability of access side and network side.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to Intel's integration program of correlation technique;
Fig. 2 is the process chart according to the data transmission method of the embodiment of the invention;
Fig. 3 is the structural representation according to the data transmission device of the embodiment of the invention;
Fig. 4 is the process chart according to the data transmission method of the embodiment two of the embodiment of the invention;
Fig. 5 is the process chart according to the data transmission method of the embodiment three of the embodiment of the invention;
Fig. 6 is the process chart according to the data transmission method of the embodiment four of the embodiment of the invention; And
Fig. 7 is the process chart according to the data transmission method of the embodiment five of the embodiment of the invention.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
For solving the joint transmission that can't realize follow-up two-way access mentioned in the correlation technique or the technical problem of shunting, the embodiment of the invention proposes a kind of data transmission method, both can help to realize the network interworking problem in the Intel scheme, guarantee again the compatibility to the WLAN agreement.Because the method is applied in a plurality of networks, therefore, also can be described as the method that realizes obtaining many networks joint transmission information.
Now data transmission method mentioned above is elaborated.Referring to Fig. 2, the handling process of this data transmission method comprises that step S202 is to step S204:
Step S202, access network elements receive multimode terminal in the link information of the first wlan network;
Wherein, the multimode terminal of mentioning among the step S202 can access current network and first wlan network at access network elements place at least;
Step S204, when access network elements determines that according to link information current network can be implemented joint transmission with the first wlan network, access network elements is diverted to the first wlan network with the part or all of the transmission of data of multimode terminal.
In embodiments of the present invention, access network elements receives multimode terminal in the link information of the first wlan network, and wherein, multimode terminal can access current network and first wlan network at access network elements place at least; When access network elements determined that according to link information current network can be implemented joint transmission with the first wlan network, access network elements was diverted to the first wlan network with the part or all of the transmission of data of multimode terminal.In this example, multimode terminal still can be respectively by existing flow process access Access Network (for example 3GPP Access Network) and WLAN access point, diverter function is to realize data distribution between the 3GPP access network elements that network side is realized and WLAN access point, not relating to end side revises, guarantee the compatibility of WiFi terminal equipment, also do not needed in addition to revise existing WiFi agreement; Multimode terminal is known the inside story for the network self of its access through same access network elements access network, has guaranteed the interoperability of access side and network side.
Wherein, multimode terminal can access current network and wlan network by access network elements, the access point of wlan network (Access Point, AP) can directly be integrated in the access network elements, also can not be integrated in the access network elements, but with the access network elements close-coupled, both combinations do not limit in embodiments of the present invention, can realize that the access function of network gets final product.
Flow process as shown in Figure 2, step S204 mentions that access network elements is diverted to the first wlan network with the part or all of the transmission of data of multimode terminal when implementing, in the implementation process, the wlan network that multimode terminal can access may be also more than one, there is another one wlan network (for example the second wlan network) to access if find this moment, then access network elements receives the link information of multimode terminal in the second wlan network, and new link information is judged.When if access network elements determines that according to the link information of above-mentioned multimode terminal in the second wlan network current network equally also can be implemented joint transmission with the second wlan network, access network elements stops the shunting to the first wlan network, and the part or all of the transmission of data of multimode terminal is diverted to the second wlan network.
The first wlan network herein only is used for the different wlan networks that the expression multimode terminal accesses with the second wlan network, and wlan network self is not produced restriction.Hereinafter mainly carry out specifying of transfer of data as an example of the first wlan network example, the method is equally applicable to the second wlan network or other wlan networks.
The link information that this example provides comprises the information of network side and/or end side, and is concrete, and network side comprises the wlan network information of multimode terminal access, and the information of end side then comprises the terminal link information of multimode terminal self.
In this example, wlan network information is the authentication information of wlan network, and is preferred, wlan network information can comprise following one of at least:
The basic service set identification of wlan network (Basic Service Set Identifier, BSSID)
The service set of wlan network (Service Set Identifier, SSID)
The extended service set identification of wlan network (Extended Service Set ID, ESSID)
The channel information of wlan network (Channel)
The media access control of the access point of wlan network (MediumAccess Control, MAC) address information.
Except the information of network side, also include the terminal link information in the link information, be used for multimode terminal and network side are identified, preferred, the terminal link information comprises:
Address information (for example MAC Address or IP address) and/or the multimode terminal association identification (Association ID, AID) at WLAN set up of multimode terminal in wlan network.
Preamble mentions access network elements can determine whether current network can implement joint transmission with the first wlan network, and definite method herein can include but not limited to following mode according to link information:
The wlan network information that the integrated WLAN access point function of wlan network information in first kind of way, the link information and access network elements is corresponding is identical, and in the time of can finding the terminal link information corresponding with multimode terminal in the link information in the first wlan network, access network elements determines that current network can implement joint transmission with the first wlan network;
At least one of the wlan network information that is used for shunting that wlan network information in the second way, the link information and access network elements are pre-configured is consistent, and in the time of can finding the terminal link information corresponding with multimode terminal in the link information in the first wlan network, access network elements determines that current network can implement joint transmission with the first wlan network.
Definite mode herein not only is applicable to the first wlan network, also is applicable to the second wlan network or other wlan networks.
For example, when the link information of multimode terminal in wlan network is BSSID, the BSSID that this BSSID and WLAN access point function are corresponding is consistent, and can carry out follow-up triage operator when having found link information with the address information of terminal or AID information matches in wlan network corresponding to this BSSID.
In one embodiment, preferred, access network elements sends indication information to multimode terminal after confirming to carry out triage operator, and whether the indication multimode terminal carries out the network at self place and the joint transmission of the first wlan network.Wherein, herein indication information comprises: wlan network information and/or whether carry out the joint transmission indication.
Flow process as shown in Figure 2, step S202 is when implementing, and access network elements receives link information, can receive the link information that multimode terminal reports by existing space interface signaling; Perhaps, access network elements also can receive the link information that multimode terminal reports by newly-increased idle message.During enforcement, if can realize, also be feasible by the non-transmission of messages link information of eating dishes without rice or wine.
In above-mentioned any one preferred embodiment, access network elements comprises the network element node of the Access Network of 3GPP different radio access technologies (RAT).Different according to RAT, the type of access network elements is also different, now be illustrated with several common RAT, for example:
The wireless access network element is at LTE network middle finger evolution base station (Evolved Node B, eNB);
At universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) the wireless access network element refers to radio network controller (Radio Network Controller in the network, RNC) and base station (Node B) (general designation RNS (Radio Network Subsystem, RNS));
At global system for mobile communications (Global System for Mobile communication, GSM) the wireless access network element refers to base station controller (Base Station Controller in the network, BSC) and base station (Base Transceiver Station, BTS) (general designation base station system (Base Station System, BSS)).
For implementing above-mentioned every embodiment of the method, based on same inventive concept, the embodiment of the invention also provides a kind of data transmission device, arranges in the access network elements, and its structural representation comprises as shown in Figure 3:
In one embodiment, preferred, receiver module 301 also is used for receiving multimode terminal in the link information of the second wlan network;
Clearer clearer for the data transmission method elaboration ground that the embodiment of the invention is provided, now be described with several specific embodiments.
Embodiment one
In the present embodiment, the current network at access network elements place is set to the 3GPP network, and this example is described.
In this example, the 3GPP access network elements receives that multimode terminal that multimode terminal reports is in the link information of wlan network, the 3GPP access network elements is diverted to wlan network with the part or all of the transmission of data of multimode terminal, realizes that multimode terminal passes through the joint transmission data of 3GPP network and wlan network simultaneously.
Wherein the 3GPP access network elements can be the network element node of the different RAT Access Networks of 3GPP such as the wireless access network element at LTE network middle finger eNB; The wireless access network element refers to RNC and NodeB (general designation RNS) in the UMTS network; The wireless access network element refers to BSC and BTS (general designation BSS) in the GSM network.
It is one of following that multimode terminal wherein comprises that in the link information of wlan network wlan network information and/or the terminal link information of multimode terminal access, wlan network information wherein comprise at least:
The BSSID of wlan network;
The SSID of wlan network;
The ESSID of wlan network;
The Channel of wlan network;
The mac address information of the access point of wlan network.
It is one of following that multimode terminal link information wherein comprises at least:
The mac address information of multimode terminal in wlan network;
The AID that multimode terminal is set up at wlan network.
Further, the link information in this example can pass to the 3GPP access network elements by existing space interface signaling by multimode terminal, also can be by newly-increased idle message transmission.
Alternatively, the 3GPP access network elements can send indication information to multimode terminal, whether carries out the joint transmission of 3GPP network and wlan network in order to indicate UE, and information can comprise wlan network information, and/or whether carries out the joint transmission indication.
Embodiment two
In this example, LTE access network elements eNB is simultaneously integrated WiFi access point function, UE is for supporting the multi mode terminal of LTE and WLAN, the idiographic flow of its data transmission procedure sees also Fig. 4.
Step S402, UE are in connected state at the LTE network, are connected carrying and carry out transfer of data with having set up between the eNB.
Step S404, UE exist by scanning discovery wlan network (i.e. the first wlan network), and access this wlan network with this wlan network by existing process, set up related.
Step S406, UE will pass through upstream message in the link information of wlan network, send to eNB such as measuring reporting message, comprise the BSSID of this wlan network in the message, and the information such as association identification AID of setting up.
After step S408, eNB receive, judge that by the wlan network information that reports the corresponding BSSID of this wlan network is consistent for the integrated wlan network BSSID in this eNB base station, simultaneously found association corresponding to this AID at this WLAN access point, two networks can be realized joint transmission, and eNB determines UE is diverted to this wlan network at the part or all of the transmission of data of this LTE network.
Step S410, eNB such as wireless resource control connection reconfiguration message (RRC Connection Reconfiguration), carry the joint transmission indication by idle message in the message, carry out the joint transmission of LTE and wlan network in order to indicate UE.
Step S412, UE send wireless resource control connection reconfiguration and finish message (RRC Connection Reconfiguration Complete) to eNB, eNB receives that the rear data distribution that begins UE is transmitted transmits in wlan network in the LTE network, realize that UE is in the joint transmission of LTE and wlan network.
Wherein step S410 and step S412 are optional, and namely eNB can be after step S408 confirms to realize shunting, and the data distribution that directly UE is transmitted in the LTE network transmits in wlan network, realize that UE is in the joint transmission of LTE and wlan network.
Embodiment three
In this example, network side comprises UMTS Access Network RNS and wlan network access point AP, and UE is for supporting the multi mode terminal of UMTS network and WLAN, and the idiographic flow of its data transmission procedure sees also Fig. 5.
Step S502, UE pass through scanning discovery wlan network (i.e. the first wlan network), and finish this wlan network of access, the industry of going forward side by side affair transfer of data by existing process.
Step S504, UE will set up service connection because of the upper-layer service demand in resident UMTS network, so UE sets up process to UMTS Access Network RNS initiation connection foundation by normal Radio Resource control connection.
Step S506, UE will pass through upstream message in the link information of wlan network, set up to finish message (RRC Connection Setup Complete) or to measure such as the Radio Resource control connection and the message such as report, send to RNC, the SSID that has comprised this wlan network in the message, the mac address information of access point in this wlan network, and the information such as association identification AID of setting up.
After step S508, RNC receive, judge that by SSID and the mac address information of wlan network this wlan network information is identical with pre-configured shunting wlan network configuration; In wlan network, found simultaneously the corresponding association identification of AID, so RNC judges and can implement shunting to this wlan network.
Step S510, RNC send to the access point of wlan network with UE in the downlink transmission data of this LTE network, and send to UE by association corresponding to AID; For upstream data, UE can send to access point by wlan network, then is transmitted to 3GPP access network elements RNS through AP, and finally sends to core net through the 3GPP network; Realized by the way the joint transmission of UE in UMTS network and wlan network.
Preferably, RNC also can pass through idle message among the step S510, and such as wireless resource control connection reconfiguration message (RRC Connection Reconfiguration), whether indication UE carries out the joint transmission of two networks.
Embodiment four
In this example, network side comprises LTE access network elements eNB, and some WLAN access points, and UE is for supporting the multi mode terminal of LTE and WLAN, and the idiographic flow of its data transmission procedure sees also Fig. 6.
Step S602, UE pass through the scanning discovery wlan network, and finish this wlan network of access, the industry of going forward side by side affair transfer of data by existing process.
Step S604, UE will set up service connection because of the upper-layer service demand in resident LTE network, so UE sets up process access LTE network by normal Radio Resource control connection, and the carrying that connects.
Step S606, UE will send to eNB by up signaling (connect to reshuffle finish message, measure reporting message or newly-increased upstream message such as RRC) in the link information of wlan network, the SSID1 that has comprised this wlan network in the message, the information such as association identification AID1 that UE sets up in this wlan network.
After step S608, eNB receive, find that eNB can't realize and the joint transmission of this wlan network, judge that such as eNB wlan network corresponding to this SSID1 is different from pre-configured wlan network SSID.
Step S610, eNB pass through idle message, such as wireless resource control connection reconfiguration message (RRC Connection Reconfiguration), carry in the message can with the wlan network information of the real-time joint transmission of eNB, such as the information such as SSID of wlan network, the channel information of corresponding wlan network etc.
Step S612, UE receive and rescan wlan network according to indication afterwards that if found the identical wlan network (i.e. the first wlan network) of SSID of eNB indication, then UE is linked into this new wlan network again, sets up association.
Step S614, UE are by up signaling, finish (RRC Connection Reconfiguration Complete) such as wireless resource control connection reconfiguration message, to send to eNB in the link information of wlan network, the SSID2 that has comprised this wlan network in the message, and the information such as association identification AID2 of setting up.
After step S616, eNB receive, judge the wlan network enforcement joint transmission that eNB can be corresponding with SSID2, the wireless connections corresponding with AID2 in this wlan network, have also been found simultaneously, therefore eNB determines UE is diverted in wlan network corresponding to SSID2 at the transmission of data of this LTE network, realizes that UE carries out transfer of data by LTE network and wlan network simultaneously.
Embodiment five
In this example, access network elements is UMTS Access Network RNS, and some WLAN access points, and UE is for supporting the multi mode terminal of UMTS network and WLAN, and the idiographic flow of its data transmission procedure sees also Fig. 7.
Step S702, UE have realized joint transmission in wlan network corresponding to RNS and access point AP1, namely the part or all of the transmission of data of UE is diverted in this wlan network by RNS and transmits.
Step S704, UE by scanning discovery new wlan network (i.e. the second wlan network) corresponding to access point AP2, UE passes through upstream message, such as measuring reporting message or newly-increased upstream message, the information of this new wlan network is sent to RNC, comprised the BSSID2 of this new wlan network in the message.
After step S706, RNC receive, RNC judges that BSSID2 is consistent with the BSSID of the pre-configured wlan network that can shunt, it is the joint transmission that RNC can realize the wlan network corresponding with BSSID2, RNC determines that according to algorithm realization is to the shunting of new wlan network, therefore RNC stops the shunting to AP1, and by downstream message, connects reconfiguration message such as RRC, indication UE cancellation is connected with original wlan network, again accesses wlan network corresponding to BSSID2.
After step S708, UE received message, disconnection was connected with original wlan network, and accesses new wlan network.
Step S710, UE pass through upstream message, connect to reshuffle such as RRC and finish message, UE is reported RNC in the link information of wlan network corresponding to BSSID2, comprising the BSSID2 of this new wlan network, the AID that UE sets up in this new wlan network or the MAC Address of UE etc.
After step S712, RNC receive, the transmission of data of UE is diverted to AP2 corresponding to this new wlan network again, the transmission of data of UE is carried out joint transmission by current UMTS and wlan network respectively.
As can be seen from the above description, the present invention has realized following technique effect:
In embodiments of the present invention, access network elements receives multimode terminal in the link information of the first wlan network, and wherein, multimode terminal can access current network and first wlan network at access network elements place at least; When access network elements determined that according to link information current network can be implemented joint transmission with the first wlan network, access network elements was diverted to the first wlan network with the part or all of the transmission of data of multimode terminal.In this example, multimode terminal still can be respectively by existing flow process access Access Network (for example 3GPP Access Network) and WLAN access point, diverter function is to realize data distribution between the 3GPP access network elements that network side is realized and WLAN access point, not relating to end side revises, guarantee the compatibility of WiFi terminal equipment, also do not needed in addition to revise existing WiFi agreement; Multimode terminal is known the inside story for the network self of its access through same access network elements access network, has guaranteed the interoperability of access side and network side.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a data transmission method is characterized in that, comprising:
Access network elements receives multimode terminal in the link information of the first WLAN (wireless local area network) wlan network, and wherein, described multimode terminal can access current network and described first wlan network at described access network elements place at least;
When described access network elements determined that according to described link information described current network can be implemented joint transmission with described the first wlan network, described access network elements was diverted to described the first wlan network with the part or all of the transmission of data of described multimode terminal.
2. method according to claim 1 is characterized in that, described access network elements is diverted to the part or all of the transmission of data of described multimode terminal after described the first wlan network, also comprises:
Described access network elements receives the link information of described multimode terminal in the second wlan network;
When described access network elements determines that according to link information corresponding to described the second wlan network described current network can be implemented joint transmission with described the second wlan network, described access network elements stops the shunting to described the first wlan network, and the part or all of the transmission of data of described multimode terminal is diverted to described the second wlan network.
3. method according to claim 1 is characterized in that, described link information comprises: the wlan network information of described multimode terminal access and/or the terminal link information of described multimode terminal self.
4. method according to claim 3 is characterized in that, described wlan network information comprise following one of at least:
The basic service set identification BSSID of described WLAN;
The service set SSID of described WLAN;
The extended service set identification ESSID of described WLAN;
The channel information of described WLAN;
The media access control MAC address of the access point of described wlan network.
5. method according to claim 3 is characterized in that, described multimode terminal link information comprise following one of at least:
The address information of described multimode terminal in described wlan network, wherein, described address information comprises media access control MAC address or Internet Protocol IP address;
The association identification AID that described multimode terminal is set up at described WLAN.
6. according to claim 1 to 5 each described methods, it is characterized in that described access network elements determines that according to described link information described current network can implement joint transmission with described the first wlan network, comprising:
The wlan network information that the integrated WLAN access point function of wlan network information in the described link information and described access network elements is corresponding is identical, and in the time of can finding the terminal link information corresponding with multimode terminal in the described link information in described the first wlan network, described access network elements determines that described current network can implement joint transmission with described the first wlan network; Perhaps
At least one of the wlan network information that is used for shunting that wlan network information in the described link information and described access network elements are pre-configured is consistent, and in the time of can finding the terminal link information corresponding with multimode terminal in the described link information in described the first wlan network, described access network elements determines that described current network can implement joint transmission with described the first wlan network.
7. method according to claim 3 is characterized in that, described access network elements receives after the described link information, and the part or all of the transmission of data of described multimode terminal is diverted to before described the first wlan network, comprising:
Described access network elements sends indication information to described multimode terminal, indicate described multimode terminal whether to carry out the network at self place and the joint transmission of described the first wlan network, wherein, described indication information comprises: described wlan network information and/or whether carry out joint transmission indication.
8. according to claim 1 to 5,7 each described methods, it is characterized in that described access network elements receives described link information, comprising:
Described access network elements receives the described link information that described multimode terminal reports by existing space interface signaling; Perhaps
Described access network elements receives the described link information that described multimode terminal reports by newly-increased idle message.
9. according to claim 1 to 5,7 each described methods, it is characterized in that described access network elements comprises the network element node of the Access Network of third generation partner program 3GPP different radio access technologies RAT.
10. method according to claim 9 is characterized in that, described access network elements comprise following one of arbitrarily:
Evolution base station eNB in the long evolving system LTE network;
RNS RNS in the universal mobile telecommunications system UMTS network, wherein, described RNS comprises radio network controller (RNC) and base station node B;
Base station system BSS in the global system for mobile communications GSM network, wherein, described BSS comprises base station controller BSC and base station BTS.
11. a data transmission device is characterized in that, is arranged in the access network elements, comprising:
Receiver module is used for receiving multimode terminal in the link information of the first WLAN (wireless local area network) wlan network, and wherein, described multimode terminal can access current network and described first wlan network at described access network elements place at least;
Diverter module is used for when determining that according to described link information described current network can be with described the first wlan network enforcement joint transmission, and the part or all of the transmission of data of described multimode terminal is diverted to described the first wlan network.
12. device according to claim 11 is characterized in that,
Described receiver module also is used for receiving described multimode terminal in the link information of the second wlan network;
Described diverter module, also be used for when determining that according to link information corresponding to described the second wlan network described current network can be implemented joint transmission with described the second wlan network, stop the shunting to described the first wlan network, the part or all of the transmission of data of described multimode terminal is diverted to described the second wlan network.
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| CN201210124681.3A CN103379590B (en) | 2012-04-25 | 2012-04-25 | Data transmission method and device |
| PCT/CN2013/074174 WO2013159654A1 (en) | 2012-04-25 | 2013-04-12 | Data transmission method and device |
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| CN201210124681.3A CN103379590B (en) | 2012-04-25 | 2012-04-25 | Data transmission method and device |
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