CN102355746A - Data transmission method based on WLAN (Wireless Local Area Network), wireless terminal and access network equipment - Google Patents
Data transmission method based on WLAN (Wireless Local Area Network), wireless terminal and access network equipment Download PDFInfo
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Abstract
The invention discloses a data transmission method based on a WLAN (Wireless Local Area Network), a wireless terminal and access network equipment. The data transmission method comprises the following steps: under the condition of the establishment of connection between access network nodes in a mobile communication network and access control nodes in the WLAN, receiving uplink WLAN data sent by a WLAN terminal, and sending the uplink WLAN data to the access control nodes trough the access network nodes; and receiving downlink WLAN data sent by the access control nodes through the access network nodes, and then sending the downlink WLAN data to the WLAN terminal. By adopting the technical proposal, the problem of difficult deployment caused by defects in wire transmission and transmission supporting in WLAN networking is solved, thus enhancing the mobility of WLAN users.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of WLAN data transmission method, wireless terminal and access network equipment.
Background technology
The network architecture of present WLAN (Wireless Local Area Network WLAN (wireless local area network)) as shown in Figure 1; Relate to STA (STAtion; Website; Be Wi-fi user), AP (Access Point; Access point), AC (Access Controller; Access controller), BRAS (Broadband Remote Application Server; Broadband Remote Access Server), Portal Server (critical point server), RADIUS nodes such as (Remote Authentication Dial-in User Service, far-end is with dialling in the service for checking credentials).Wherein, the interface between STA and the AP is an air interface, adopts wireless transmission, meets protocol specifications such as IEEE802.11a/b/g/n; AP is connected through the fixed broadband transmission with AC, and its interface meets CAPWAP (Control And Provisioning of Wireless Access Point Protocol, wireless access point control and configuration protocol) protocol specification.
In the networking of the networking of reality and disposing; Need in appointed area and scene, dispose AP according to planning; But because the condition of aspects such as machine room, power supply, progress, engineering can not be satisfied fully; Causing the installation of a part of AP to be disposed can't smooth implementation, has directly influenced integrated planning and the enforcement progress of WLAN.
In order to alleviate above-mentioned restrictive condition, can use the scheme of CPE (Customer Premises Equipment, ustomer premises access equipment) scheme or bridge (relaying).Shown in Fig. 2 a, the former is mainly used in outdoor Wi-Fi (Wireless Fidelity, Wireless Fidelity) signal is filtered amplification again, supplies indoor use; Shown in Fig. 2 b, the latter mainly amplifies the WLAN signal through the mode of relaying, guarantees to transmit farther distance.Above dual mode; All be in order to solve the transmission problem of wlan network; But because the transmission attenuation of Wi-Fi technology itself is bigger; Factors such as the diffraction performance is bad restriction; Cause in the process of WLAN networking; Choice of location and transmission range to CPE or bridge all compare strict (line-of-sight transmission), and a lot of scenes are still more limited.
It is thus clear that in the existing WLAN networking technology, the broadband cabled ways of connecting of Ethernet is used in being connected of AP and AC usually, but because the coverage of AP own is little, therefore the quantity that totally needs is a lot.Under some restrictive conditions, do not possess, transmit like machine room and can't open etc., all can cause AP to build smoothly and open-minded, the integral body that directly influences WLAN is disposed and networking.
The equipment of WLAN makes also that to the requirement of power supply, transmission, engineering construction the wlan network construction investment is bigger, and the time is longer.
Present in addition CPE scheme and bridge scheme all are the transmission problems that a part has solved WLAN also, but receive the influence (line-of-sight transmission etc.) of Wi-Fi technology radio transmission performance, and applied scene is more limited, and networking cost is higher.
Summary of the invention
The present invention provides a kind of WLAN data transmission method, wireless terminal and access network equipment, because wire transmission and the supporting problem that is difficult to dispose not in place, has also remedied the problem of WLAN user's poor mobility in order to solve in the WLAN networking.
The present invention provides a kind of WLAN (wireless local area network) WLAN data transmission method, comprising:
Under the situation that the access network node of setting up in mobile communications network connects to the access control node among the WLAN, receive the up WLAN data that send at the WLAN terminal, said up WLAN data are sent to the access control node through said access network node; And
Receive the access control node through said access network node and send descending WLAN data, said descending WLAN data are issued the WLAN terminal.
The present invention also provides a kind of transmission WLAN (wireless local area network) WLAN data transmission method, comprising:
Access network node in the mobile communications network receives the up WLAN data that wireless terminal sends in the situation that foundation respectively and wireless terminal are connected with access control node among the WLAN, and said WLAN data are sent to the access control node; And
During descending WLAN data that access network node receives that the access control node sends, said descending WLAN data are sent to wireless terminal.
The present invention also provides a kind of wireless terminal, comprising:
Connect and to set up the unit, be used for setting up connection through the access network node of the mobile communications network access control node in the WLAN;
First retransmission unit is used for after connecting foundation, receiving the up WLAN data that send at the WLAN terminal, and said up WLAN data are sent to the access control node through said access network node;
Second retransmission unit is used for after connecting foundation, receives the access control node through said access network node and sends descending WLAN data, and said descending WLAN data are issued the WLAN terminal.
The present invention also provides a kind of access network equipment, uses mobile communications network communication, comprising:
Connect and to set up the unit, be used for setting up respectively and being connected of the access control node of wireless terminal and WLAN;
First retransmission unit is used for after connecting foundation, receiving the up WLAN data that wireless terminal sends, and said WLAN data are sent to the access control node;
Second retransmission unit is used for after connect setting up, and during the descending WLAN data that receive that the access control node sends, said descending WLAN data is sent to wireless terminal.
The embodiment of the invention also provides a kind of wireless terminal, comprising:
Access point AP module is used for descending WLAN data are sent to the WLAN terminal, and receives up WLAN data from the WLAN terminal;
Network terminal module; Be connected with said AP module; The descending WLAN data that the access network node of access control node in mobile communications network among the WLAN transmitted send to the AP module, and will send to said access control node through said access network node from the up WLAN data that the AP module receives.
Utilize WLAN data transmission method provided by the invention, wireless terminal and access network equipment, have following beneficial effect:
1) compares with the broadband cabled passback scheme of present WLAN; Because it is wider that mobile communications network covers; Not being subjected to the restriction of conditions such as transmission line, deployment scenario, power configuration, website addressing, can accomplishing to dispose whenever and wherever possible, is a kind of effective WLAN networking arbitrary way;
2) compare with traditional Wi-Fi technology, this technology does not have the restriction of wired connection, arranges net conveniently, can effectively widen the range of application of Wi-Fi, as being applied to mobile scenes such as light rail, taxi, bus;
3) compare with bridge technology with present WLAN CPE; This programme is disposed the place and is not subjected to the outdoor Wi-Fi signal strength signal intensity and the influence of line-of-sight transmission, can have the place of mobile network signals to install with the equipment of WLAN terminal wireless communication and through the mobile communications network passback arbitrary;
4) this scheme returns through mobile communications network, only uses the standard feature of mobile communications network, need not adjust networking structure of the network, signaling process; Simultaneously, mobile communications network also only provides tunnel transmission between AP and access control node, and Wi-Fi user still uses the wlan network function of standard; Therefore this programme does not all have influence to the existing application (authentication, access, business, charging etc.) of wlan network and mobile communications network, is suitable for quick deployment;
5) utilize the Radio Transmission Technology of mobile communications network; Can also strengthen (high-gain terminal antenna, MIMO technology, space division multiplexing technology etc.), increase transmission bandwidth modes such as (binding of a plurality of terminals, multicarrier bindings) through spacing wave, promote the speed and the efficient of transmission.
Description of drawings
Fig. 1 is existing wlan system framework;
Fig. 2 a is the existing WLAN group-network construction figure that adopts CPE;
Fig. 2 b is the existing WLAN group-network construction figure that adopts bridge;
A kind of WLAN data transmission method flow chart that Fig. 3 provides for the embodiment of the invention;
The another kind of WLAN data transmission method flow chart that Fig. 4 provides for the embodiment of the invention;
Fig. 5 utilizes 3G network for the embodiment of the invention and carries out the network architecture diagram of WLAN returning data;
Fig. 6 carries out the protocol stack sketch map of WLAN returning data through 3G network for the embodiment of the invention;
Fig. 7 utilizes 3G network to carry out the workflow and the data flow diagram of WLAN returning data in the embodiment of the invention;
Fig. 8 carries out WLAN data wireless passback detail flowchart for the embodiment of the invention through 3G network;
The wireless terminal configurations figure that Fig. 9 embodiment of the invention provides.
Embodiment
Along with the digital city Large scale construction is carried out, WLAN particularly Wi-Fi (Wireless Fidelity) wireless technology embodies great advantage.Have at present the local area network (LAN) employing ethernet technology more than 80% in the world at least, Wi-Fi can be considered as the extension of ethernet standard in wireless domain as the standard that IEEE works out, and also makes WLAN on using, possess seamless excessive and smooth characteristics of installing.The installation of WLAN be provided with quite simple: when needs are set up network in certain zone and are connected, only need dispose, set up corresponding access point to get final product within the specific limits according to programme.
But Wi-Fi is as a popular technology; Wireless transmission quality is not high; Coverage is less relatively; Also more depend on transmission network and auxiliary facility (power supply, machine room etc.) on the engineering; The networking of also giving WLAN with dispose the great challenge that brings, particularly will be in a city scope large scale deployment wlan network.Simultaneously, because the Wi-Fi technology limitation, the performance of WLAN aspect mobility lags behind other wireless networking schemes (2G, 3G etc.).
In order to overcome above problem, the embodiment of the invention provides a kind of WLAN (wireless local area network) WLAN data transmission method, as shown in Figure 3, comprising:
Step 301; Under the situation that the access network node of setting up in mobile communications network connects to the access control node among the WLAN; Receive the up WLAN data that send at the WLAN terminal, said up WLAN data are sent to the access control node through said access network node;
Step 302 receives the access control node through said access network node and sends descending WLAN data, and said descending WLAN data are issued the WLAN terminal.
Wherein, after connecting foundation, the execution of step 301 and step 302 does not have the sequencing restriction.
Above-mentioned mobile communications network is a two-tier network, promptly comprises Radio Access Network and core network, and the embodiment of the invention realizes the WLAN returning data through the access network node in the Radio Access Network.
The embodiment of the invention also provides a kind of transmission WLAN (wireless local area network) WLAN data transmission method, as shown in Figure 4, comprising:
During descending WLAN data that step 402, access network node receive that the access control node sends, said descending WLAN data are sent to wireless terminal.
Wherein, after connecting foundation, the execution of step 401 and step 402 does not have the sequencing restriction.
Preferably, also comprise:
Access network node receives wireless terminal and sends up mobile network data, and said up mobile network data is that destination node is the data of node in the mobile communications network;
Access network node sends descending mobile network data to wireless terminal, and said descending mobile network data is that source node is the data of the node in the mobile communications network.
Along with 3G (Third Generation) Moblie network (abbreviation 3G network) coverage enlarges gradually, the carrying out gradually of the 4th third generation mobile communication network (be called for short 4G network), mobile communications network can provide the more Network Transmission of high bandwidth.It is above even higher that the downlink transfer speed of 3G network can reach 20Mbps, and the downlink transfer speed of 4G network can reach 100Mbps.These all are that 3G network and 4G network provide WLAN passback scheme that condition is provided.
Preferably; Mobile communications network is above-mentioned 3G network or the 4G network that third generation partner program 3GPP organizes standard that meet in the embodiment of the invention; Certainly; Development along with network configuration; It can also be other mobile communications network; The embodiment of the invention can be divided the IA High Speed Channel of the wireless access network that utilizes the 3G/4G network like this; Returning data to the WLAN Access Network; Solved in the WLAN networking because wire transmission and the supporting problem that is difficult to dispose not in place, also remedied the problem of WLAN user's poor mobility.The embodiment of the invention has embodied the fusion at Access Network of wlan network and 3G/4G network.
The executive agent of communicating by letter with WLAN terminal and access network node respectively in the embodiment of the invention is a wireless terminal; Communication mode between this wireless terminal and WLAN; With the communication mode between existing AP and WLAN; But, wireless terminal through access network node realize with WLAN in communicating by letter between access control node (AC/BRAS).If the employing 3G network, then above-mentioned access network node comprises interconnective base station and radio network controller, i.e. NodeB+RNC; If adopt the 4G network, then above-mentioned access network node is an evolution base station eNB.
Preferably, this method further comprises: send up mobile network data to said access network node, said up mobile network data is that destination node is the data of node in the mobile communications network; Receive descending mobile network data through said access network node, said descending mobile network data is that source node is the data of the node in the mobile communications network.
Like this; The embodiment of the invention can be developed the AP function on the wireless terminal of existing mobile communications network; It also can be the Radio Terminal Function of exploitation mobile communications network on existing AP; Make its can with communication standard and the WLAN terminal communication of WALN by existing WLAN; And the WLAN data are pressed the communication standard of mobile communications network; Send to access network node with wireless mode, be forwarded to the access control node by access network node.
Be the preferred implementation that example provides WLAN transfer of data of the present invention with the 3G network below, utilizing 4G to carry out the embodiment of WLAN passback also can be with reference to this embodiment.
As shown in Figure 5 embodiment of the invention WLAN data transmission method based on system architecture, wherein,
1) AP module in the prior art and network terminal module (3G network terminal module) can be combined (being called AP-3G equipment as follows), access point AP module sends to the WLAN terminal with descending WLAN data, and receives up WLAN data from the WLAN terminal; Network terminal module is connected with the AP module, and AC among the WLAN is sent to the AP module through the descending WLAN data that access network node transmits, and will send to AC through access network node from the up WLAN data that the AP module receives.
Therefore, AP-3G equipment had both been accomplished the communication function of WLAN AP, also accomplished wireless terminal user communication function in the 3G network.
2) no longer be connected between AP and the AC, but be connected to AC, promptly connect through the 3G wireless access network through access network node through wired broadband network.
3) the 3G network terminal module possesses the 3G terminal function, the data of WLANAP can also be returned to RNC through the NodeB in the 3G Radio Access Network simultaneously;
4) RNC sends to AC with the WLAN AP data of receiving.
Among Fig. 5; NodeB and RNC are access network node; Form 3G RAN (Radio Access Network; Radio Access Network); SGSN (Serving GPRS Support Node; Serving GPRS Support Node) and GGSN (Gateway GPRS Support Node, Gateway GPRS Support Node) form 3G PSCN (Packet Switch Core Network, packet-switched core network).Interface between AP-3G equipment and the WLAN terminal (being STA) is an air interface, adopts wireless transmission, meets the protocol specifications such as IEEE802.11a/b/g/n that existing AP adopts; Simultaneously, it has 3G terminal function (below be called AP-3G user), and the interface between the 3G RAN is air interface, adopts wireless transmission, meets protocol specifications such as 3GPP TS25.331, adopts protocol stack specifically as shown in Figure 6.
According to Fig. 7, Fig. 8, the WLAN data transmission procedure is following in detail in the embodiment of the invention:
1) AP-3G user initiates registration and authentication request to access network node, accomplishes registration and authentication jointly by access network node (NodeB+RNC) and core net node, and in 3G network registration, authentication, this process is identical with existing realization flow.If success, then explanation is that AP-3G user is legal 3G subscription, can use the 3G network resource, transmits data between permission and access network node.
2) AP-3G equipment is initiated DHCP (Dynamic Host Configuration Protocol to access network node; DHCP) request; RNC carries out dhcp process according to the DHCP request that AP-3G equipment sends in the Radio Access Network; This request belongs to the service surface data to 3G network; Trigger AP-3G user's PDP (Packet Data Protocol packet data protocol) activation thus, AP-3G user initiates the PDP request;
In the AP-3G user PDP activation; Obtain the IP address that core net node distributes; Based on an IP address through NodeB, RNC; Set up with core net node between be connected; In the PDP activation; RNC need discern user type (being AP-3G user or 3G subscription), if AP-3G user is then for AP-3G user sets up the inside relation of continuing, this continues and is used for the transmission of the mutual and follow-up Wi-Fi user data between AP-3G equipment and the AC.
Particularly, through dhcp process, AP-3G user obtains GGSN and is the 2nd IP address that is used for communicating by letter with AC of its distribution and the IP address of AC.The AP operate as normal is communicated by letter normally with AC afterwards; After getting into normal workflow; IP address based on IP address allocated and AC; The AP module of AP-3G and AC set up CAPWAP (Control And Provisioning of Wireless Access Points, the control of WAP (wireless access point) and provide) tunnel, and the AP module is improved self configuration.
3) after Wi-Fi user inserted, AC/BRAS was AP-3G devices allocation IP address, through NodeB, RNC, initiated verification process to AC based on said IP address.
4) authentication through after carry out WLAN data (comprising the Wi-Fi user data) transmission.
Concrete transmission course is that AP-3G equipment sends to NodeB with up WLAN data, through RNC, up WLAN data is sent to AC by NodeB;
AP-3G equipment receives the descending WLAN data that AC sends over through RNC, NodeB successively.
In the whole system, RNC can distinguish AP-3G user and common 3G subscription, the circulation of AP-3G user's data can be issued AC equipment, gives PSCN with the data forwarding of common 3G subscription.In addition, for the performance of elevator system, can adopt following method:
When (1) AP-3G user's free of data is transmitted, can be moved to PCH (Paging Channel, paging channel) state, discharged the 3G access network resource;
(2) RNC is that AP-3G user is provided with different priority parameters with common 3G subscription, preferentially ensures the business transmission of high-priority users.
The WLAN data transmission method that the embodiment of the invention provides, concrete following characteristics:
1) the pattern of fusion network architecture of WLAN returning data is provided, comprising: AP carries out returning data through the network of 3G, and Wi-Fi user data and AP data are carried out transparent transmission in the 3G Access Network.
2) 3G network only provides transmission channel, and Wi-Fi user's authentication, authentication and charging process are still accomplished in wlan network, to the networking mode and the not influence of structure of current wlan network.
3) AP-3G need pass through the authentication of 3G network, is convenient to safety certification and the management of operator to 3G terminal equipment.
4) RNC accomplishes the shunting of AP-3G user and common 3G subscription, as according to destination node, the AP-3G user's data can be transmitted to AC, and common 3G subscription data forwarding is given PSCN.
5) RNC can support the priority setting to AP-3G user and common 3G subscription, at first ensures high-priority service.
6) RNC can dispose AP-3G user and get into the PCH state, discharges the access network resource.
The embodiment of the invention has following major advantage with respect to prior art:
1) compares with the broadband cabled passback scheme of present WLAN; The 3G/4G network coverage is wider; Not being subjected to the restriction of conditions such as transmission line, deployment scenario, power configuration, website addressing, can accomplishing to dispose whenever and wherever possible, is a kind of effective WLAN networking arbitrary way.
2) compare with traditional Wi-Fi technology, this technology does not have the restriction of wired connection, arranges net conveniently, can effectively widen the range of application of Wi-Fi, as being applied to mobile scenes such as light rail, taxi, bus.
3) compare with bridge technology with present WLAN CPE, present embodiment is disposed the place and is not subjected to the outdoor Wi-Fi signal strength signal intensity and the influence of line-of-sight transmission, can have the place of 3G/4G signal AP equipment to be installed and to be passed through the passback of 3G/4G network arbitrary.
4) return through the 3G/4G network, only use the standard feature of 3G/4G network, need not adjust networking structure of the network, signaling process; Simultaneously, the 3G/4G network also only provides tunnel transmission between AP and AC, and Wi-Fi user still uses the wlan network function of standard; Therefore the embodiment of the invention does not all have influence to the existing application (authentication, access, business, charging etc.) of wlan network and 3G/4G network, is suitable for quick deployment.
5) utilize the Radio Transmission Technology of 3G/4G, can also strengthen (high-gain terminal antenna, MIMO technology, space division multiplexing technology etc.) through spacing wave, the modes such as (binding of a plurality of terminals, multicarrier bindings) that increases transmission bandwidth, promote the speed and the efficient of transmission.
6) the Access Network bearing resource of 3G/4G network has been used in the passback of WLAN, through sharing the access bearer resource with 3G/4G user, and uses 3G/4G Internet resources technology of sharing (as: baseband pool technology), has promoted the whole network service efficiency of operator greatly.
Based on same inventive concept; A kind of wireless terminal and access network equipment also are provided in the embodiment of the invention; Because the principle that these equipment are dealt with problems is similar with a kind of WLAN data transmission method, so the enforcement of these equipment can repeat part and repeat no more referring to the enforcement of method.
The wireless terminal that the embodiment of the invention provides as shown in Figure 9, comprising:
Connect and to set up unit 900, be used for setting up connection through the access network node of the mobile communications network access control node in the WLAN;
Preferably, also comprise: transmitting element 903, be used for sending up mobile network data to said access network node, said up mobile network data is that destination node is the data of node in the mobile communications network; Receiving element 904 is used for receiving descending mobile network data through said access network node, and said descending mobile network data is that source node is the data of the node in the mobile communications network.
The embodiment of the invention also provides a kind of access network equipment, uses mobile communications network communication, comprising:
Connect and to set up the unit, be used for setting up respectively and being connected of the access control node of wireless terminal and WLAN;
First retransmission unit is used for after connecting foundation, receiving the up WLAN data that wireless terminal sends, and said WLAN data are sent to the access control node;
Second retransmission unit is used for after connect setting up, and during the descending WLAN data that receive that the access control node sends, said descending WLAN data is sent to wireless terminal.
Preferably, also comprise: receiving element, be used to receive wireless terminal and send up mobile network data, said up mobile network data is that destination node is the data of node in the mobile communications network; Transmitting element is used for sending descending mobile network data to wireless terminal, and said descending mobile network data is that source node is the data of node in the mobile communications network
Preferably, said access network equipment is the node in the 3G (Third Generation) Moblie network, or is the node in the 4th third generation mobile communication network.
The embodiment of the invention also provides a kind of wireless terminal, according to Fig. 5, comprising:
Access point AP module is used for descending WLAN data are sent to the WLAN terminal, and receives up WLAN data from the WLAN terminal;
Network terminal module; Be connected with said AP module; The descending WLAN data that the access network node of access control node in mobile communications network among the WLAN transmitted send to the AP module, and will send to said access control node through said access network node from the up WLAN data that the AP module receives.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (26)
1. a WLAN (wireless local area network) WLAN data transmission method is characterized in that, comprising:
Under the situation that the access network node of setting up in mobile communications network connects to the access control node among the WLAN, receive the up WLAN data that send at the WLAN terminal, said up WLAN data are sent to the access control node through said access network node; And
Receive the access control node through said access network node and send descending WLAN data, said descending WLAN data are issued the WLAN terminal.
2. the method for claim 1 is characterized in that, further comprises:
Send up mobile network data to said access network node, said up mobile network data is that destination node is the data of node in the mobile communications network;
Receive descending mobile network data through said access network node, said descending mobile network data is that source node is the data of the node in the mobile communications network.
3. method as claimed in claim 1 or 2 is characterized in that, said mobile communications network is 3G (Third Generation) Moblie network or the 4th third generation mobile communication network.
4. method as claimed in claim 3 is characterized in that, said mobile communications network is the 3G (Third Generation) Moblie network, and said access network node comprises interconnective base station node B and radio network controller (RNC); Perhaps said mobile communications network is the 4th third generation mobile communication network, and said access network node is an evolution base station eNB.
5. method as claimed in claim 1 or 2 is characterized in that, sets up before access network node connects to the access control node among the WLAN, comprising:
To said access network node initiation registration and authentication request, accomplish registration and authentication jointly by access network node and core net node, after registration and the authentication success, transmit data between permission and access network node.
6. method as claimed in claim 2 is characterized in that, sets up through access network node to connect to the access control node among the WLAN, specifically comprises:
Initiate the dynamic host configuration protocol DHCP process to access network node; The packet data protocol (PDP) activating process triggers the activation in dhcp process; Through PDP activation; Obtain the IP address that core net node distributes; And based on an IP address through access network node, set up with core net node between be connected;
Obtain to be used for and the 2nd IP address of access control node communication and the IP address of access network control node through dhcp process;
Based on the 2nd IP address and the access control IP addresses of nodes of distributing, to set up and the internodal CAPWAP tunnel of access control through access network node, the data of accomplishing WLAN connect.
7. a transmission WLAN (wireless local area network) WLAN data transmission method is characterized in that, comprising:
Access network node in the mobile communications network receives the up WLAN data that wireless terminal sends in the situation that foundation respectively and wireless terminal are connected with access control node among the WLAN, and said WLAN data are sent to the access control node; And
During descending WLAN data that access network node receives that the access control node sends, said descending WLAN data are sent to wireless terminal.
8. method as claimed in claim 7 is characterized in that, also comprises:
Access network node receives wireless terminal and sends up mobile network data, and said up mobile network data is that destination node is the data of node in the mobile communications network;
Access network node sends descending mobile network data to wireless terminal, and said descending mobile network data is that source node is the data of the node in the mobile communications network.
9. like claim 7 or 8 described methods, it is characterized in that said access network node is the node in the 3G (Third Generation) Moblie network, or be the node in the 4th third generation mobile communication network.
10. method as claimed in claim 8 is characterized in that, access network node is connected with access control node among the WLAN at foundation respectively and wireless terminal, specifically comprises:
Dhcp process is carried out in dynamic host configuration protocol DHCP request according to wireless terminal sends; The packet data protocol (PDP) activating process triggers the activation in dhcp process; In PDP activation; The IP address that core net is distributed sends to wireless terminal, and based on an IP address set up with core net node between be connected;
In dhcp process, being used for of obtaining sent to wireless terminal with the 2nd IP address of access control node communication and the IP address of access network control node;
Based on the 2nd IP address and the access control IP addresses of nodes of distributing, between wireless terminal and access control node, set up CAPWAP tunnel, the data of accomplishing WLAN connect.
11. method as claimed in claim 8 is characterized in that, further comprises:
After said access network node receives upstream data from wireless terminal, confirm that according to the destination node of said upstream data said upstream data is up WLAN data or up mobile network data.
12. method as claimed in claim 8 is characterized in that, said access network node is provided with User Priority according to type of service, carries out up/descending WLAN data according to the User Priority that is provided with, and up/descending mobile network data transmission.
13. like claim 7 or 8 described methods, it is characterized in that, further comprise:
When access network node is confirmed the transmission of wireless terminal free of data, said wireless terminal is moved to paging channel PCH state, be released to the wireless access resource that wireless terminal distributes.
14. a wireless terminal is characterized in that, comprising:
Connect and to set up the unit, be used for setting up connection through the access network node of the mobile communications network access control node in the WLAN;
First retransmission unit is used for after connecting foundation, receiving the up WLAN data that send at the WLAN terminal, and said up WLAN data are sent to the access control node through said access network node;
Second retransmission unit is used for after connecting foundation, receives the access control node through said access network node and sends descending WLAN data, and said descending WLAN data are issued the WLAN terminal.
15. wireless terminal as claimed in claim 14 is characterized in that, also comprises:
Transmitting element is used for sending up mobile network data to said access network node, and said up mobile network data is that destination node is the data of node in the mobile communications network;
Receiving element is used for receiving descending mobile network data through said access network node, and said descending mobile network data is that source node is the data of the node in the mobile communications network.
16. wireless terminal as claimed in claim 15 is characterized in that, said mobile communications network is the 3G (Third Generation) Moblie network, and said access network node comprises interconnective base station node B and radio network controller (RNC); Or
Said mobile communications network is the 4th third generation mobile communication network, and said access network node is an evolution base station eNB.
17. like claim 14 or 15 described wireless terminals, it is characterized in that, also comprise:
Register and authentication is initiated the unit; Be used for setting up before access network node connects to the access control node of WLAN; Initiate registration and authentication request to said access network node; Accomplish registration and authentication jointly by access network node and core net node; After registration and the authentication success, transmit data between permission and access network node.
18. wireless terminal as claimed in claim 15 is characterized in that, connection is set up unit foundation and is connected to the access control node among the WLAN through access network node, specifically comprises:
Initiate the dynamic host configuration protocol DHCP process to access network node; The packet data protocol (PDP) activating process triggers the activation in dhcp process; Through PDP activation; Obtain the IP address that core net node distributes; And based on an IP address through access network node, set up with core net node between be connected;
Obtain to be used for and the 2nd IP address of access control node communication and the IP address of access network control node through dhcp process;
Based on the 2nd IP address and the access control IP addresses of nodes of distributing, to set up and the internodal CAPWAP tunnel of access control through access network node, the data of accomplishing WLAN connect.
19. an access network equipment uses mobile communications network communication, it is characterized in that, comprising:
Connect and to set up the unit, be used for setting up respectively and being connected of the access control node of wireless terminal and WLAN;
First retransmission unit is used for after connecting foundation, receiving the up WLAN data that wireless terminal sends, and said WLAN data are sent to the access control node;
Second retransmission unit is used for after connect setting up, and during the descending WLAN data that receive that the access control node sends, said descending WLAN data is sent to wireless terminal.
20. equipment as claimed in claim 19 is characterized in that, also comprises:
Receiving element is used to receive wireless terminal and sends up mobile network data, and said up mobile network data is that destination node is the data of node in the mobile communications network;
Transmitting element is used for sending descending mobile network data to wireless terminal, and said descending mobile network data is that source node is the data of node in the mobile communications network.
21., it is characterized in that said access network equipment is the node in the 3G (Third Generation) Moblie network like claim 19 or 20 described equipment, or be the node in the 4th third generation mobile communication network.
22. equipment as claimed in claim 20 is characterized in that, connect set up the unit respectively foundation and wireless terminal be connected with access control node among the WLAN, specifically comprise:
Dhcp process is carried out in dynamic host configuration protocol DHCP request according to wireless terminal sends; The packet data protocol (PDP) activating process triggers the activation in dhcp process; In PDP activation; The IP address that core net is distributed sends to wireless terminal, and based on an IP address set up with core net node between be connected;
In dhcp process, being used for of obtaining sent to wireless terminal with the 2nd IP address of access control node communication and the IP address of access network control node;
Based on the 2nd IP address and the access control IP addresses of nodes of distributing, between wireless terminal and access control node, set up CAPWAP tunnel, the data of accomplishing WLAN connect.
23. equipment as claimed in claim 20 is characterized in that, after said first retransmission unit receives upstream data from wireless terminal, confirms that according to the destination node of said upstream data said upstream data is up WLAN data or up mobile network data.
24. equipment as claimed in claim 20 is characterized in that, also comprises:
Priority is provided with the unit, is used for according to type of service User Priority being set, and indication is carried out up/descending WLAN data according to the User Priority that is provided with, and up/descending mobile network data transmission.
25. like claim 19 or 20 described equipment, it is characterized in that, also comprise:
The resource releasing unit when being used for confirming the transmission of wireless terminal free of data, is moved to paging channel PCH state with said wireless terminal, is released to the wireless access resource that wireless terminal distributes.
26. a wireless terminal is characterized in that, comprising:
Access point AP module is used for descending WLAN data are sent to the WLAN terminal, and receives up WLAN data from the WLAN terminal;
Network terminal module; Be connected with said AP module; The descending WLAN data that the access network node of access control node in mobile communications network among the WLAN transmitted send to the AP module, and will send to said access control node through said access network node from the up WLAN data that the AP module receives.
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| CN2011103348060A CN102355746A (en) | 2011-10-28 | 2011-10-28 | Data transmission method based on WLAN (Wireless Local Area Network), wireless terminal and access network equipment |
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| CN2011103348060A CN102355746A (en) | 2011-10-28 | 2011-10-28 | Data transmission method based on WLAN (Wireless Local Area Network), wireless terminal and access network equipment |
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Application publication date: 20120215 |