CN103379590B - Data transmission method and device - Google Patents

Data transmission method and device Download PDF

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Publication number
CN103379590B
CN103379590B CN201210124681.3A CN201210124681A CN103379590B CN 103379590 B CN103379590 B CN 103379590B CN 201210124681 A CN201210124681 A CN 201210124681A CN 103379590 B CN103379590 B CN 103379590B
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network
wlan
access
multimode terminal
wlan network
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CN103379590A (en
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和峰
艾建勋
王昕�
韩立锋
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2013/074174 priority patent/WO2013159654A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of data transmission method and devices, this method comprises: access network elements receive multimode terminal in the link information of the first wlan network, wherein multimode terminal at least has access to the network and the first wlan network where access network elements;When access network elements judge that current network can implement joint transmission with the first wlan network according to link information, some or all of multimode terminal is transmitted data distribution to the first wlan network by access network elements.The problem of joint transmission or shunting that cannot achieve subsequent two-way access are able to solve using the present invention.

Description

Data transmission method and device
Technical field
The present invention relates to the communications fields, in particular to a kind of data transmission method and device.
Background technique
With the continuous evolution of wireless communication technique and standard, mobile Packet Service has obtained huge development, unit/terminal Data throughput capabilities constantly promoted.By taking long term evolution (Long Term Evolution, LTE) system as an example, in 20M band The data of downlink maximum rate 100Mbps can be supported to transmit in width, LTE (LTE Advanced) system of subsequent enhancing In, the transmission rate of data will be promoted further, it might even be possible to reach 1Gbps.
The growth of terminal data portfolio expansion type, makes existing Internet resources gradually unable to do what one wishes, especially new one In the case where can not also arranging net extensively for the communication technology (such as 3G, LTE), consequent be user rate and flow demand without Method meets, the variation of user experience.How to prevent and change this case is the problem of operator must be taken into consideration, and is on the one hand needed Accelerate the popularization and network deployment of new technology;On the other hand, it is desirable to be able to by enhancing existing network and technology, to reach To the purpose of fast lifting network performance.It is well known that in third generation partner program (The 3rd Generation Partnership Project, 3GPP) except the radio network technique that provides, current commonly used WLAN (Wireless LocalArea Network, WLAN), is based especially on Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11 standards WLAN family, enterprise Industry even internet is widely used in hot spot access covering.The skill wherein proposed by WiFi alliance (Wi-Fi Alliance) Art specification is most widely used, therefore WiFi network is often equivalent to the wlan network based on 802.11 standard of IEEE in practice, Do not cause in the case where obscuring, also describes wireless receiving and dispatching and the processing of supporting WLAN in network node using WiFi module hereinafter Module.
Under the premise of this, some operators and company have proposed to merge WLAN with existing 3GPP network, real Existing joint transmission, to achieve the purpose that load shunts and improve network performance.Although present 3GPP has formulated 3GPP network With the related protocol of wlan network intercommunication (Interworking), but in current Interworking framework there is also it is some not Foot place, such as data when end user device (User Equipment, UE) moves between 3GPP network and wlan network Stream switching is slower, and in addition the data flow of two networks requires to cause to bear by 3GPP core network element in this case Lotus is bigger.It is important that in addition there are also current this framework, which is also to rely on operator, can independent 3GPP network With the wlan network of independent completion, this requires multiple networks of operator's operation maintenance simultaneously, operation cost pays (Capital Expenditure, CAPEX) it is larger.Therefore WLAN is proposed again with the further demand that merges of 3GPP network, new solution Scheme is also in gradually being proposed and being discussed.
In the scheme that different manufacturers propose, Intel (Intel) proposes a kind of network integration of similar carrier wave polymerization Scheme, wherein scheme general architecture is as shown in Figure 1.Wherein, WLAN is not re-used as a separate network presence, but is solely for One data connection of the transmission accessed between net and terminal in existing 3GPP network exists, and accesses main management of the net to UE It with the transmission of possible partial data is transmitted in the connection based on 3GPP network, is similarly to carrier wave polymerization, that is, utilizes 3GPP Network is connected to main carrier, and is connected to secondary carrier using the WLAN that the WiFi module on access net and UE is established and realizes Shunting to being transmitted on main carrier.However under this architecture, 3GPP and WLAN is still two independent access networks;In addition it runs Quotient's demand also requires the compatibility in order to guarantee WiFi equipment, cannot modify WiFi agreement, this also causes UE to be respectively connected to 3GPP It is unwitting mutually when network and access WLAN.Even if the WiFi module for accessing net and network side is co-sited, at present agreement The intercommunity of the two is not can guarantee still.This results in Intel scheme to cannot achieve the joint transmission of subsequent two-way access or divide Stream.
Aiming at the problem that cannot achieve the joint transmission or shunting of subsequent two-way access in the related technology, not yet mention at present Effective solution scheme out.
Summary of the invention
Aiming at the problem that cannot achieve the joint transmission or shunting of subsequent two-way access in the related technology, the present invention is provided A kind of data transmission method and device, at least to solve the above problems.
According to an aspect of the invention, there is provided a kind of data transmission method, comprising: it is whole that access network elements receive multimode Hold the link information in the first WLAN wlan network, wherein the multimode terminal at least has access to the access net Current network and first wlan network where network element;When the access network elements determine institute according to the link information When joint transmission can be implemented with first wlan network by stating current network, the access network elements are by the multimode terminal Data distribution is partly or entirely transmitted to first wlan network.
Preferably, some or all of described multimode terminal is transmitted data distribution to described first by the access network elements After wlan network, further includes: the access network elements receive link information of the multimode terminal in the second wlan network; When the access network elements according to the corresponding link information of second wlan network determine the current network can with it is described When second wlan network implements joint transmission, the access network elements stop the shunting to first wlan network, will be described Some or all of multimode terminal transmits data distribution to second wlan network.
Preferably, the link information includes: wlan network information and/or the multimode end of the multimode terminal access Hold the terminal link information of itself.
Preferably, the wlan network information includes at least one following: the basic service set identification of the WLAN BSSID;The service set SSID of the WLAN;The extended service set identification ESSID of the WLAN;The channel of the WLAN is believed Breath;The MAC address of the access point of the wlan network.
Preferably, the multimode terminal link information includes at least one following: the multimode terminal is in the WLAN net Address information in network, wherein the address information includes MAC address or Internet protocol IP address; The association identification AID that the multimode terminal is established in the WLAN.
Preferably, the access network elements determine that the current network can be with described first according to the link information Wlan network implements joint transmission, comprising: what wlan network information and the access network elements in the link information integrated The corresponding wlan network information of WLAN access point function is identical, and can find in first wlan network and the company When connecing the corresponding terminal link information of multimode terminal in information, the access network elements determine that the current network can be with institute It states the first wlan network and implements joint transmission;Or wlan network information in the link information and the access network elements it is pre- At least one in the wlan network information for shunting of configuration is consistent, and can find in first wlan network When terminal link information corresponding with the multimode terminal in the link information, the access network elements determine the current network It can implement joint transmission with first wlan network.
Preferably, after the access network elements receive the link information, by some or all of described multimode terminal Before transmission data distribution to first wlan network, comprising: the access network elements send to the multimode terminal and indicate Information indicates the joint transmission of the network and first wlan network where whether the multimode terminal executes itself, wherein The instruction information include: the wlan network information and/or whether execute joint transmission instruction.
Preferably, the access network elements receive the link information, comprising: the access network elements pass through existing sky Message, which enables, receives the link information that the multimode terminal reports;Or the access network elements pass through newly-increased idle message Receive the link information that the multimode terminal reports.
Preferably, the access network elements include third generation partner program 3GPP different radio access technologies RAT Access the network element node of net.
Preferably, the access network elements include following one of any: the evolution base station in long evolving system LTE network eNB;Wireless network subsystem RNS in Universal Mobile Communication System UMTS network, wherein the RNS includes wireless network control Device RNC processed and base station NodeB;Base station system BSS in global system for mobile communications GSM network, wherein the BSS includes base Station control BSC and base station BTS.
According to another aspect of the present invention, a kind of data transmission device is provided, is arranged in access network elements, comprising: Receiving module, for receiving multimode terminal in the link information of the first WLAN wlan network, wherein the multimode terminal At least have access to the current network where the access network elements and first wlan network;Diverter module, for working as It, will be described more when determining that the current network can implement joint transmission with first wlan network according to the link information Some or all of mould terminal transmits data distribution to first wlan network.
Preferably, the receiving module is also used to receive link information of the multimode terminal in the second wlan network; The diverter module is also used to when determining that the current network can be with according to the corresponding link information of second wlan network When second wlan network implements joint transmission, stop the shunting to first wlan network, by the multimode terminal Data distribution is partly or entirely transmitted to second wlan network.
In embodiments of the present invention, access network elements receive multimode terminal in the link information of the first wlan network, wherein Multimode terminal at least has access to current network and the first wlan network where access network elements;When access network elements according to When link information determines that current network can implement joint transmission with the first wlan network, access network elements are by the portion of multimode terminal Divide or all transmits data distribution to the first wlan network.In this example, multimode terminal still can pass through existing process respectively Access access net (such as 3GPP accesses net) and WLAN access point, diverter function are that the 3GPP realized in network side accesses net net Data distribution is realized between member and WLAN access point, is not related to terminal side modification, be ensure that the compatibility of WiFi terminal equipment, in addition It does not need to modify existing WiFi agreement yet;Multimode terminal accesses network through the same access network elements, for the net of its access Network itself be it is informed, ensure that the intercommunity of access side and both network sides.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to Intel's integration program of the relevant technologies;
Fig. 2 is the process flow diagram of data transmission method according to an embodiment of the present invention;
Fig. 3 is the structural schematic diagram of data transmission device according to an embodiment of the present invention;
Fig. 4 is the process flow diagram of the data transmission method of embodiment two according to an embodiment of the present invention;
Fig. 5 is the process flow diagram of the data transmission method of embodiment three according to an embodiment of the present invention;
Fig. 6 is the process flow diagram of the data transmission method of example IV according to an embodiment of the present invention;And
Fig. 7 is the process flow diagram of the data transmission method of embodiment five according to an embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and in combination with Examples.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.
Technology for the joint transmission that cannot achieve subsequent two-way access or shunting that solve to refer in the related technology is asked It inscribes, the embodiment of the present invention proposes a kind of data transmission method, can both help to realize the network interworking problem in Intel scheme, Guarantee the compatibility to WLAN protocol again.Since this method is applied in multiple networks, it alternatively referred to as realizes and obtains more nets The method of network joint transmission information.
Now data transmission method mentioned above is described in detail.Referring to fig. 2, the processing stream of the data transmission method Journey includes step S202 to step S204:
Step S202, access network elements receive multimode terminal in the link information of the first wlan network;
Wherein, the multimode terminal referred in step S202 at least have access to current network where access network elements and First wlan network;
Step S204, when access network elements determine that current network can be implemented to join with the first wlan network according to link information When closing transmission, some or all of multimode terminal is transmitted data distribution to the first wlan network by access network elements.
In embodiments of the present invention, access network elements receive multimode terminal in the link information of the first wlan network, wherein Multimode terminal at least has access to current network and the first wlan network where access network elements;When access network elements according to When link information determines that current network can implement joint transmission with the first wlan network, access network elements are by the portion of multimode terminal Divide or all transmits data distribution to the first wlan network.In this example, multimode terminal still can pass through existing process respectively Access access net (such as 3GPP accesses net) and WLAN access point, diverter function are that the 3GPP realized in network side accesses net net Data distribution is realized between member and WLAN access point, is not related to terminal side modification, be ensure that the compatibility of WiFi terminal equipment, in addition It does not need to modify existing WiFi agreement yet;Multimode terminal accesses network through the same access network elements, for the net of its access Network itself be it is informed, ensure that the intercommunity of access side and both network sides.
Wherein, multimode terminal can access current network and wlan network, the access of wlan network by access network elements Point (Access Point, AP) can be directly integrated in access network elements, can also and be not integrated into access network elements, but It is not to be defined, can be realized in embodiments of the present invention with access network elements close-coupled, the combination of the two The access function of network.
Process as shown in Figure 2, step S204 refer to that access network elements pass some or all of multimode terminal when implementing Transmission of data is diverted to the first wlan network, in implementation process, wlan network that multimode terminal can access may and more than one, If discovery has another wlan network (such as second wlan network) that can access at this time, it is whole that access network elements receive multimode The link information in the second wlan network is held, and new link information is judged.If access network elements are according to above-mentioned more Link information of the mould terminal in the second wlan network determines that current network equally also can be implemented to combine with the second wlan network When transmission, access network elements stop the shunting to the first wlan network, and some or all of multimode terminal is transmitted data distribution To the second wlan network.
The first wlan network and the second wlan network herein is only used for indicating the different wlan networks of multimode terminal access, Restriction is not generated to wlan network itself.What is mainly carried out data transmission by taking the first wlan network as an example hereinafter illustrates, This method is equally applicable to the second wlan network or other wlan networks.
The link information that this example provides includes the information of network side and/or terminal side, specifically, network side includes multimode end Terminate into wlan network information, and the information of terminal side then includes the terminal link information of multimode terminal itself.
In this example, wlan network information is the authentication information of wlan network, it is preferred that under wlan network information may include At least one column:
The basic service set identification (Basic Service Set Identifier, BSSID) of wlan network
The service set (Service Set Identifier, SSID) of wlan network
The extended service set identification (Extended Service Set ID, ESSID) of wlan network
The channel information (Channel) of wlan network
Media access control (MediumAccess Control, MAC) address information of the access point of wlan network.
It further include having terminal link information in addition to the information of network side, in link information, for multimode terminal and net Network side is identified, it is preferred that terminal link information includes:
Address information (such as MAC Address or IP address) and/or multimode terminal of the multimode terminal in wlan network exist The association identification (Association ID, AID) that WLAN is established.
It is mentioned above, access network elements can determine whether current network can be with the first wlan network according to link information Implement joint transmission, determination method herein can include but is not limited to following manner:
The WLAN access point function pair that wlan network information and access network elements in first way, link information integrate The wlan network information answered is identical, and can find in the first wlan network corresponding with the multimode terminal in link information When terminal link information, access network elements determine that current network can implement joint transmission with the first wlan network;
The WLAN for shunting that wlan network information and access network elements in the second way, link information are pre-configured At least one in the network information is consistent, and can find in the first wlan network and the multimode terminal pair in link information When the terminal link information answered, access network elements determine that current network can implement joint transmission with the first wlan network.
Method of determination herein is not only applicable to the first wlan network, apply also for the second wlan network or other Wlan network.
For example, when link information of the multimode terminal in wlan network is BSSID, the BSSID and WLAN access point function Corresponding BSSID is consistent, and has found and the address information of terminal or AID information in the corresponding wlan network of the BSSID Subsequent triage operator can be carried out when the link information matched.
In one embodiment, it is preferred that, access network elements are after confirmation can carry out triage operator, to multimode terminal Instruction information is sent, indicates the joint transmission of the network and the first wlan network where whether multimode terminal executes itself.Wherein, Instruction information herein include: wlan network information and/or whether execute joint transmission instruction.
Process as shown in Figure 2, for step S202 when implementing, access network elements receive link information, can be by existing Space interface signaling receives the link information that multimode terminal reports;Alternatively, access network elements can also be connect by newly-increased idle message Receive the link information that multimode terminal reports.When implementation, if can be realized, it is also feasible for transmitting link information by non-idle message 's.
In any one above-mentioned preferred embodiment, access network elements include connecing for 3GPP different radio access technologies (RAT) The network element node of networking.According to RAT difference, the type of access network elements is also different, now illustrate with several common RAT It is bright, such as:
Wireless access network element refers to evolution base station (Evolved Node B, eNB) in the lte networks;
In Universal Mobile Communication System (Universal Mobile Telecommunications System, UMTS) net Wireless access network element refers to radio network controller (Radio Network Controller, RNC) and base station (Node in network B) (it is referred to as wireless network subsystem (Radio Network Subsystem, RNS));
In global system for mobile communications (Global System for Mobile communication, GSM) network Wireless access network element refers to base station controller (Base Station Controller, BSC) and base station (Base Transceiver Station, BTS) (being referred to as base station system (Base Station System, BSS)).
To implement above-mentioned every embodiment of the method, based on the same inventive concept, the embodiment of the invention also provides a kind of numbers According to transmitting device, it is arranged in access network elements, structural schematic diagram is as shown in Figure 3, comprising:
Receiving module 301, for receiving multimode terminal in the link information of the first wlan network, wherein multimode terminal is extremely The current network and the first wlan network where access network elements are had access to less;
Diverter module 302, for that can implement to join with the first wlan network with current network when according to link information is determining When closing transmission, some or all of multimode terminal is transmitted into data distribution to the first wlan network.
In one embodiment, it is preferred that, receiving module 301 is also used to receive multimode terminal in the second wlan network Link information;
Diverter module 302 is also used to when determining that current network can be with the according to the corresponding link information of the second wlan network When two wlan networks implement joint transmission, stop the shunting to the first wlan network, some or all of multimode terminal is transmitted Data distribution is to the second wlan network.
It is clearer to become apparent from illustrating data transmission method provided in an embodiment of the present invention, now with several specific implementations Example is described.
Embodiment one
In the present embodiment, the current network where access network elements is set as 3GPP network, and is illustrated to the example.
In this example, 3GPP access network elements receive multimode terminal that multimode terminal reports in the link information of wlan network, Some or all of multimode terminal is transmitted data distribution to wlan network by 3GPP access network elements, realizes that multimode terminal leads to simultaneously Cross the joint transmission data of 3GPP network and wlan network.
Wherein 3GPP access network elements can be the network element node such as wireless access network element of 3GPP difference RAT access net Refer to eNB in the lte networks;Wireless access network element refers to RNC and NodeB (being referred to as RNS) in a umts network;In gsm networks Wireless access network element refers to BSC and BTS (being referred to as BSS).
Multimode terminal therein the link information of wlan network include multimode terminal access wlan network information and/or Terminal link information, wlan network information therein include at least one of following:
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.
Multimode terminal link information therein includes at least one of following:
Mac address information of the multimode terminal in wlan network;
The AID that multimode terminal is established in wlan network.
Further, the link information in this example can pass to 3GPP by existing space interface signaling by multimode terminal and connect Network element can also be transmitted by newly-increased idle message.
Optionally, 3GPP access network elements can send instruction information to multimode terminal, to indicate whether UE executes The joint transmission of 3GPP network and wlan network, information may include wlan network information, and/or whether execute joint transmission and refer to Show.
Embodiment two
In this example, LTE access network elements eNB is integrated with WiFi access point function simultaneously, and UE is to support that LTE's and WLAN is more The detailed process of mould mobile phone, data transmission procedure refers to Fig. 4.
Step S402, UE is in connected state in LTE network, established between eNB connect carrying carry out data transmission.
Step S404, UE exists by scanning discovery wlan network (i.e. the first wlan network), and logical with the wlan network It crosses existing process and accesses the wlan network, establish association.
Step S406, UE will be sent in the link information of wlan network by upstream message, such as measurement reporting message ENB contains the BSSID of the wlan network in message, and the information such as association identification AID established.
Step S408, after eNB is received, judge that the wlan network corresponds to BSSID as this by the wlan network information reported The integrated wlan network BSSID in the base station eNB is consistent, while the corresponding association of the AID is had found on the WLAN access point, and two Joint transmission may be implemented in network, and eNB determines UE transmitting data distribution to the WLAN net in some or all of this LTE network Network.
Step S410, eNB passes through idle message, such as wireless resource control connection reconfiguration message (RRC Connection Reconfiguration), joint transmission instruction is carried in message, to indicate that UE carries out LTE and WLAN net The joint transmission of network.
Step S412, UE sends wireless resource control connection reconfiguration and completes message (RRC Connection Reconfiguration Complete) eNB is given, the data distribution that eNB starts in the lte networks to transmit UE after receiving arrives It is transmitted in wlan network, realizes UE in the joint transmission of LTE and wlan network.
Wherein step S410 and step S412 is optional, i.e. eNB can after step S408 confirms shunting may be implemented, The data distribution that directly UE is transmitted in the lte networks is transmitted into wlan network, realizes UE in the joint of LTE and wlan network Transmission.
Embodiment three
In this example, network side include UMTS access net RNS and wlan network access point AP, UE be support UMTS network and The detailed process of the multi mode terminal of WLAN, data transmission procedure refers to Fig. 5.
Step S502, UE connects by scanning discovery wlan network (i.e. the first wlan network), and by the completion of existing process Enter the wlan network, and carries out business data transmission.
Step S504, UE will establish service connection in resident UMTS network because of upper-layer service demand, therefore UE passes through Normal wireless heterogeneous networks connect establishment process and initiate the connection foundation to UMTS access net RNS.
Step S506, UE will be built in the link information of wlan network by upstream message, such as wireless heterogeneous networks connection It is vertical to complete message (RRC Connection Setup Complete) or the message such as measurement reports, it is sent to RNC, is wrapped in message The SSID of the wlan network is contained, mac address information of access point in the wlan network, and the association identification AID established etc. Information.
Step S508, after RNC is received, which is judged by the SSID and mac address information of wlan network It is identical as the shunting wlan network configuration of pre-configuration;Have found that AID corresponds to association identification, therefore RNC in wlan network simultaneously Judgement can be implemented to shunt to the wlan network.
Step S510, RNC sends UE in the downlink transmission data of this LTE network the access point of wlan network, and leads to It crosses the corresponding association of AID and is sent to UE;For upstream data, UE can be sent to access point by wlan network, then through AP It is transmitted to 3GPP access network elements RNS, and is ultimately sent to core net through 3GPP network;UE is realized through the above way to exist Joint transmission in UMTS network and wlan network.
Preferably, RNC can also pass through idle message, such as wireless resource control connection reconfiguration message in step S510 (RRC Connection Reconfiguration), instruction UE are made whether to carry out the joint transmission of two networks.
Example IV
In this example, network side includes LTE access network elements eNB and several WLAN access points, and UE is to support LTE and WLAN Multi mode terminal, the detailed process of data transmission procedure refers to Fig. 6.
Step S602, UE is by scanning discovery wlan network, and completes to access the wlan network by existing process, goes forward side by side Row business data transmission.
Step S604, UE will establish service connection because of upper-layer service demand in resident LTE network, therefore UE is by just Normal wireless heterogeneous networks connection establishment process accesses LTE network, and establishes connection carrying.
Step S606, UE is by the link information of wlan network, by uplink signaling, (for example RRC connection reconfiguration sets completion and disappears Breath, measurement reporting message or newly-increased upstream message) it is sent to eNB, the SSID1 of the wlan network is contained in message, UE is at this The information such as the association identification AID1 established in wlan network.
Step S608, after eNB is received, discovery eNB cannot achieve the joint transmission with the wlan network, such as eNB judgement The corresponding wlan network of the SSID1 is different from the wlan network SSID of pre-configuration.
Step S610, eNB passes through idle message, such as wireless resource control connection reconfiguration message (RRC Connection Reconfiguration), carry in message can with the wlan network information of the real-time joint transmission of eNB, than The SSID information of such as wlan network, the channel information etc. of corresponding wlan network.
Step S612, wlan network is rescaned according to instruction after UE is received, if it find that the SSID of eNB instruction is identical Wlan network (i.e. the first wlan network), then UE is linked into the new wlan network again, establishes association.
Step S614, UE completes (RRC by uplink signaling, such as wireless resource control connection reconfiguration message Connection Reconfiguration Complete), it will be sent to eNB in the link information of wlan network, is wrapped in message The SSID2 of the wlan network is contained, and the information such as association identification AID2 established.
Step S616, after eNB is received, judge eNB can corresponding with SSID2 wlan network implement joint transmission, simultaneously Have also discovered discovery wireless connection corresponding with AID2 in the wlan network, thus eNB determine by UE this LTE network biography Transmission of data is diverted in the corresponding wlan network of SSID2, realizes that UE passes through LTE network simultaneously and wlan network carries out data biography It is defeated.
Embodiment five
In this example, access network elements be UMTS access net RNS and several WLAN access points, UE be support UMTS network and The detailed process of the multi mode terminal of WLAN, data transmission procedure refers to Fig. 7.
Step S702, UE realizes joint transmission, the i.e. part of UE in RNS and the corresponding wlan network of access point AP1 Or whole transmission data are diverted in the wlan network by RNS and are transmitted.
Step S704, UE passes through the new corresponding wlan network of access point AP2 (i.e. the second wlan network) of scanning discovery, The information of the new wlan network is sent to by UE by upstream message, such as measurement reporting message or newly-increased upstream message RNC contains the BSSID2 of the new wlan network in message.
Step S706, after RNC is received, RNC judges the BSSID mono- of BSSID2 and the wlan network that can be shunted being pre-configured It causes, i.e. the joint transmission of wlan network corresponding with BSSID2 may be implemented in RNC, and RNC determines to realize to new WLAN according to algorithm The shunting of network, therefore RNC stops the shunting to AP1, and sets message by downstream message, such as RRC connection reconfiguration, indicates UE Cancel the connection with original wlan network, accesses the corresponding wlan network of BSSID2 again.
Step S708, after UE receives message, the connection with original wlan network is disconnected, and access new wlan network.
Step S710, UE sets by upstream message, such as RRC connection reconfiguration and completes message, and UE is corresponding in BSSID2 The link information of wlan network is reported to RNC, and including the BSSID2 of the new wlan network, UE is built in the new wlan network The MAC Address etc. of vertical AID or UE.
Step S712, after RNC is received, the transmission data of UE are diverted to the corresponding AP2 of the new wlan network again, by UE Transmission data pass through current UMTS and wlan network respectively and carry out joint transmission.
It can be seen from the above description that the present invention realizes following technical effect:
In embodiments of the present invention, access network elements receive multimode terminal in the link information of the first wlan network, wherein Multimode terminal at least has access to current network and the first wlan network where access network elements;When access network elements according to When link information determines that current network can implement joint transmission with the first wlan network, access network elements are by the portion of multimode terminal Divide or all transmits data distribution to the first wlan network.In this example, multimode terminal still can pass through existing process respectively Access access net (such as 3GPP accesses net) and WLAN access point, diverter function are that the 3GPP realized in network side accesses net net Data distribution is realized between member and WLAN access point, is not related to terminal side modification, be ensure that the compatibility of WiFi terminal equipment, in addition It does not need to modify existing WiFi agreement yet;Multimode terminal accesses network through the same access network elements, for the net of its access Network itself be it is informed, ensure that the intercommunity of access side and both network sides.
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 to be different from shown in sequence execution herein Out or description the step of, perhaps 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, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of data transmission method characterized by comprising
Access network elements receive multimode terminal in the link information of the first WLAN wlan network, wherein the multimode is whole Hold the current network where at least having access to the access network elements and first wlan network;
When the access network elements determine that the current network can be real with first wlan network according to the link information When applying joint transmission, some or all of described multimode terminal is transmitted data distribution to described first by the access network elements Wlan network;
Wherein, the data distribution between 3GPP access network elements and WLAN access point is realized by network side;
Wherein, some or all of described multimode terminal is transmitted data distribution to the first WLAN net by the access network elements After network, further includes: the access network elements receive link information of the multimode terminal in the second wlan network;When described Access network elements determine that the current network can be with described second according to the corresponding link information of second wlan network When wlan network implements joint transmission, the access network elements stop the shunting to first wlan network, by the multimode Some or all of terminal transmits data distribution to second wlan network;
Wherein, the link information includes: the wlan network information and/or the multimode terminal itself of the multimode terminal access Terminal link information;
Wherein, after the access network elements receive the link information, some or all of described multimode terminal is transmitted into number According to being diverted to before first wlan network, comprising: the access network elements send instruction information to the multimode terminal, refer to Show the joint transmission of the network and first wlan network where whether the multimode terminal executes itself, wherein the finger Show information include: the wlan network information and/or whether execute joint transmission instruction.
2. the method according to claim 1, wherein the wlan network information includes at least one following:
The basic service set identification BSSID of the WLAN;
The service set SSID of the WLAN;
The extended service set identification ESSID of the WLAN;
The channel information of the WLAN;
The MAC address of the access point of the wlan network.
3. the method according to claim 1, wherein the multimode terminal link information include it is following at least it One:
Address information of the multimode terminal in the wlan network, wherein the address information includes media access control MAC Address or Internet protocol IP address;
The association identification AID that the multimode terminal is established in the WLAN.
4. method according to any one of claims 1 to 3, which is characterized in that the access network elements are according to the connection Information determines that the current network can implement joint transmission with first wlan network, comprising:
Wlan network information in the link information is corresponding with the WLAN access point function that the access network elements integrate Wlan network information is identical, and can find in first wlan network and the multimode terminal pair in the link information When the terminal link information answered, the access network elements determine that the current network can be implemented to join with first wlan network Close transmission;Or
The wlan network for shunting that wlan network information and the access network elements in the link information are pre-configured is believed At least one in breath is consistent, and can find in first wlan network and the multimode terminal in the link information When corresponding terminal link information, the access network elements determine that the current network can be implemented with first wlan network Joint transmission.
5. method according to any one of claims 1 to 3, which is characterized in that the access network elements receive the connection Information, comprising:
The access network elements receive the link information that the multimode terminal reports by existing space interface signaling;Or
The access network elements receive the link information that the multimode terminal reports by newly-increased idle message.
6. method according to any one of claims 1 to 3, which is characterized in that the access network elements include that the third generation closes Make the network element node of the access net of Partnership Program 3GPP different radio access technologies RAT.
7. according to the method described in claim 6, it is characterized in that, the access network elements include following one of any:
Evolution base station eNB in long evolving system LTE network;
Wireless network subsystem RNS in Universal Mobile Communication System UMTS network, wherein the RNS includes wireless network control Device RNC processed and base station NodeB;
Base station system BSS in global system for mobile communications GSM network, wherein the BSS includes base station controller BSC and base Stand BTS.
8. a kind of data transmission device, which is characterized in that be arranged in access network elements, comprising:
Receiving module, for receiving multimode terminal in the link information of the first WLAN wlan network, wherein the multimode Terminal at least has access to current network and first wlan network where the access network elements;
Diverter module determines that the current network can be implemented with first wlan network according to the link information for working as When joint transmission, some or all of described multimode terminal is transmitted into data distribution to first wlan network;
Wherein, the data distribution between 3GPP access network elements and WLAN access point is realized by network side;
Wherein, the receiving module is also used to receive link information of the multimode terminal in the second wlan network;Described point Flow module is also used to when determining that the current network can be with described the according to the corresponding link information of second wlan network When two wlan networks implement joint transmission, stop shunting to first wlan network, by the part of the multimode terminal or Data distribution is all transmitted to second wlan network;
Wherein, the link information includes: the wlan network information and/or the multimode terminal itself of the multimode terminal access Terminal link information;
Wherein, described device further includes after access network elements receive the link information, by the part of the multimode terminal Or all sent to the multimode terminal before transmission data distribution to first wlan network and indicate information, described in instruction Whether multimode terminal executes the joint transmission of the network and first wlan network where itself, wherein the instruction information Include: the wlan network information and/or whether execute joint transmission instruction.
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