CN102802206A - Offload method and offload network element for wireless local area network (WLAN) - Google Patents
Offload method and offload network element for wireless local area network (WLAN) Download PDFInfo
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Abstract
The invention discloses an offload method and an offload network element for a wireless local area network (WLAN). The method comprises the following steps that: the offload network element determines the signing level of a terminal user according to a level identifier in a message from a terminal; and the offload network element selects a matched offload path according to the signing level of the terminal user, and transmits the message according to the selected offload path. By the offload method and the offload network element, the implementation complexity and deployment cost of offload of the WLAN are lowered.
Description
Technical field
(3G, the 3rd-Generation) dividing technology between network and WLAN (WLAN, Wireless Local Area Network) relate in particular to a kind of WLAN shunt method and shunting network element to the present invention relates to the 3G (Third Generation) Moblie technology.
Background technology
In recent years, along with the fast development of 3G intelligent terminal and Operator Specific Service, the mobile data flow presents explosive growth.A large amount of uses of intelligent terminal and data card make 5% user occupy among the mobile network about 50% flow.In addition, also face the congestion problems of the center cell in the city at present, about 80% data traffic comes from 10% cell site.And, in some zones, still be that social perspective all unlikely continues to dispose cell base station from cost.Various services then continue to need a large amount of bandwidth resources, and as at next three years, video will occupy about 64% mobile data services.
Under this environment, just need find one's way out for alleviating 3G network pressure.In order to handle the growth of flow,, will need higher investment cost if use traditional mechanism to remove the extended network capacity.Therefore, adopt the data distribution strategy at present mostly, experience with the high-quality service that guarantees all users.And the use of WLAN both can the minimise data cost, also can make operator's better utilization existing cellular network, so WLAN just becomes the most effectively one of means of present 3G data distribution.
So-called shunting (offload) is meant that with mobile data services from a network migration to other network, this is operated for user transparent, and this is the key components that effectively reduce network congestion.For example: insert mobile video for guaranteeing the paying customer, in busy urban cells, when network congestion, paying customer's video tastes will descend; If the user inserts this regional focus, its terminal equipment will detect wlan network, and be redirected to wlan network, in case be connected to wlan network, user video stream is served smooth migration to wlan network; Switching to WLAN from 3G, is transparent for the user.
The mobile data shunting will reduce invests cost, and promotes economic benefit through balance business demand between network.Present operator is just expecting to dispose the data distribution strategy and is removing to solve following congestion point:
1, the core network element that over-burden: before business reached core network element, directly routing service was shunted the load of these network elements to the Internet, reduced backhaul (backhaul) cost; Said core network element is like Gateway GPRS Support Node (GGSN, Gateway GPRS Support Node), grouped data network gateway (PDN-GW, Packet Data Network Gateway) etc.;
2, congested sub-district: the user data of shunting congested sub-district (like the WLAN hot-zone) flow to other accesses.
At present; In order better to promote the flexibility of shunt method; Third generation partner program (3GPP, The 3rd Generation Partnership Project) has been introduced procotol (IP, Internet Protocol) stream mobility in version 10 (R10); Support at the same time in the network of 3G and WLAN access, make the IP that selects flow seamless moving between two kinds of different accesses.Divide stream mechanism based on operator's control and Business Stream characteristic.
As shown in Figure 1, be the configuration diagram of 3GPP, WLAN mutual (3GPP I-WLAN) in the prior art.Usually, the mobile subscriber can select the WLAN access network to be used for and the communicating by letter of the Internet, because the WLAN access network provides high bandwidth, and selects the Business Stream flow to branch to wlan network from 3G network; When wlan network can not use, just use 3G network.WLAN IAD among Fig. 1 (WAG, WLAN Access Gateway), the data of responsible route dealing WLAN access network and packet data gateway (PDG, Packet Data Gateway).PDG application service quality (QoS, Quality of Service) mechanism makes that operator is that different user and type of service provide the control based on strategy; The business of route dealing message data network.High-priority service (like HD video, self-operated business etc.) possibly used high-quality network, requires few business will use the Internet of transmission as possible.
At present, the distributing strategy of shunting gateway mainly comprises:
1, traffic flow types is like ip voice (VoIP, Voice over Internet Protocol), video, recreation, data service etc.;
2, Business Stream differentiated services code points (DSCP, Differentiated Services Code Point) mark;
3, customer location and sub-district condition in real time;
4, the particular stream tactical management of operator.
Therefore, shut the shunting management that need provide complicated, like which user, equipment, be applied under which kind of situation and shunt at shunting net.And in most of the cases, the user inserts through WLAN and is connected to the Internet, just means that mobile operator has lost the control to the user, it is said that and can not charge for the user provides better service and logarithm to send row to.
This shows that shunting net is shut usually and shunted based on the granularity of Business Stream at present, needs identification services stream type or Business Stream required service quality category or operator's particular stream tactical management etc., carries out the triage operator of Business Stream according to this.Existing distributing strategy particle is thinner, and implementation complexity is higher, and the equipment performance of shunting gateway is had relatively high expectations, and it is higher to dispose cost price.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of WLAN shunt method and shunting network element, and is higher to solve existing distributing strategy implementation complexity, and the equipment performance of shunting gateway is had relatively high expectations the lower deployment cost problem of higher.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of wireless lan (wlan) shunt method, this method comprises:
Shunting net unit confirms terminal use's signatory grade according to from the class letter in the message at terminal;
The shunt paths of coupling is selected according to terminal use's signatory grade by said shunting net unit, and transmits said message by selected shunt paths.
Said shunting net is first confirms terminal use's signatory grade according to from the class letter in the message at terminal, and the shunt paths according to terminal use's signatory grade selection is mated is specially:
Store message shunting mapping policy table in the said shunting network element in advance, comprise the mapping relations of class letter, signatory grade and shunt paths in the said mapping policy table based on signatory grade;
Said shunting net unit is according to the class letter in the message, and said mapping policy table, confirms terminal use's signatory grade, and selects the shunt paths of coupling.
Said shunt paths comprises: branch to the Internet, branch to the WLAN anchor point, branch to the Cellular Networks anchor point.
Said class letter is: 802.1P priority or IP address.
When said class letter was 802.1P priority, this method further comprised:
Said terminal is according to the signatory grade of user and the preset signatory grade mapping relations with transmission classification logotype (TCID), the access point of selecting corresponding TCID to be carried to send to said terminal in the 802.11e message (AP);
Said AP is according to the TCID in the 802.11e message that receives, and converts said 802.11e message the 802.1P message of corresponding priority into, and said 802.1P message is sent to the shunting network element;
The said shunting net unit signatory grade corresponding according to said 802.1P message selected the shunt paths of mating.
When said class letter was 802.1P priority, this method further comprised:
Corresponding virtual AP is selected to be connected to according to the signatory grade of user and the signatory grade of presetting and the mapping relations of virtual AP in said terminal;
Said AP is according to the preset virtual AP and the mapping relations of 802.1P priority, converts the message at terminal the 802.1P message of corresponding priority into, and said 802.1P message is sent to the shunting network element;
The said shunting net unit signatory grade corresponding according to said 802.1P message selected the shunt paths of mating.
When said class letter was the IP address, this method further comprised:
802.11 messages are sent to its AP in the terminal, and carrying network side in the message is the IP address of terminal distribution according to the signatory grade of user;
802.11 messages that said AP will receive convert Ethernet message to and send to AC;
Said AC confirms terminal use's signatory grade according to source IP address in the IP heading of message and message shunting mapping policy table, selects the shunt paths of coupling.
The present invention also provides a kind of shunting network element, comprising:
The message receiver module is used for confirming terminal use's signatory grade according to the class letter that comes the message of self terminal;
Diverter module is used for the shunt paths according to terminal use's signatory grade selection coupling, and transmits said message by selected shunt paths.
Said shunting network element further comprises: memory module, be used to store message shunting mapping policy table based on signatory grade, and comprise the mapping relations of class letter, signatory grade and shunt paths in the said mapping policy table;
Accordingly, said message receiver module is further used for, and according to the class letter in the message at terminal, and said mapping policy table, confirms terminal use's signatory grade.
Said shunt paths comprises: branch to the Internet, branch to the WLAN anchor point, branch to the Cellular Networks anchor point.
Said class letter is: 802.1P priority or IP address.
A kind of WLAN shunt method provided by the present invention and shunting network element carry out the WLAN shunting based on the signatory grade of user, and its realization is simple and convenient, has reduced implementation complexity and cost that shunting net is shut.In addition, in this kind branch stream mechanism, operator does not lose the control to the user, can for the user provides differentiated services and transfer of data, realize different chargings according to user's signing type.
Description of drawings
Fig. 1 is the sketch map of 3GPP I-WLAN framework in the prior art;
Fig. 2 is the flow chart of a kind of WLAN shunt method of the present invention;
Fig. 3 is a kind of structural representation of shunting network element of the present invention;
Fig. 4 among the present invention based on the sketch map of the WLAN shunting of the signatory grade of user;
Fig. 5 is based on the flow chart of the shunt method of 802.11e in the embodiment of the invention one;
Fig. 6 is based on the flow chart of the shunt method of VAP in the embodiment of the invention two;
Fig. 7 is the flow chart of IP address-based shunt method in the embodiment of the invention three.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
A kind of WLAN shunt method provided by the present invention, as shown in Figure 2, mainly may further comprise the steps:
Step 201, shunting net unit confirms terminal use's signatory grade according to from the class letter in the message at terminal.
Step 202, the shunt paths of coupling is selected according to terminal use's signatory grade by shunting net unit, and transmits said message by selected shunt paths.
Concrete, can store message shunting mapping policy table in the shunting network element in advance based on signatory grade, comprise the mapping relations of class letter, signatory grade and shunt paths in this mapping policy table;
Shunting net unit is according to the class letter in the message, and said mapping policy table, confirms terminal use's signatory grade, and selects the shunt paths of coupling.
At wireless access side and network side, terminal and the network based user grade of contracting can provide the wireless access service and the transport services of corresponding grade for the user.
Wherein, said shunt paths comprises: branch to the Internet, branch to the WLAN anchor point, branch to the Cellular Networks anchor point.Class letter can be 802.1P priority or IP address.
Corresponding above-mentioned WLAN shunt method, the present invention also provides a kind of shunting network element, and is as shown in Figure 3, comprising: message receiver module 10, diverter module 20 and memory module 30.
Wherein, message receiver module 10 is used for confirming terminal use's signatory grade according to the class letter that comes the message of self terminal.Diverter module 20 is used for the shunt paths according to terminal use's signatory grade selection coupling, and transmits said message by selected shunt paths.Memory module 30 is used to store the message shunting mapping policy table based on signatory grade, comprises the mapping relations of class letter, signatory grade and shunt paths in the said mapping policy table.Said message receiver module 10 is according to the class letter in the message at terminal, and said mapping policy table, confirms terminal use's signatory grade.
Need to prove that in 3GPP I-WLAN framework, Radio Access Controller (AC, Access Control) can be used as said shunting network element, realize the above-mentioned functions of shunting network element.And in some applications, access point (AP, Access Point) and AC be close establish, promptly close and be located in the same network element device, for this situation, the shunting network element of indication of the present invention is meant that promptly this closes the AC functional module in the network element device of establishing.The structure that all sets up separately with AP and AC among the follow-up embodiment of the present invention is that example describes, and closes the structure of establishing for AP and AC, and it is identical with structure that AP and AC set up separately in the operation that realizes the WLAN shunting.
In addition, in practical application, class letter is that the WLAN shunt method of 802.1P priority can adopt: based on the shunting of 802.11e, or based on the shunting of virtual AP (VAP, Virtual Access Point).
Shunting based on 802.11e is specially:
The terminal selects corresponding TCID to be carried at the AP that sends to the terminal in the 802.11e message according to signatory grade of user and preset signatory grade and the mapping relations of transmitting classification logotype (TCID, Traffic Category Identifier);
AP is according to the TCID in the 802.11e message that receives, and converts said 802.11e message the 802.1P message of corresponding priority into, and said 802.1P message is sent to the shunting network element;
The signatory grade that shunting net unit is corresponding according to said 802.1P message is selected the shunt paths of coupling, and presses the message of selected shunt paths transmission terminal.
Shunting based on VAP is specially:
Corresponding virtual AP is selected to be connected to according to the signatory grade of user and signatory grade of presetting and the mapping relations of VAP in the terminal;
AP is according to the preset VAP and the mapping relations of 802.1P priority, converts the message at terminal the 802.1P message of corresponding priority into, and the 802.1P message is sent to the shunting network element;
The signatory grade that shunting net unit is corresponding according to said 802.1P message is selected the shunt paths of coupling, and presses the message of selected shunt paths transmission terminal.
Class letter is that the WLAN shunt method of IP address is specially:
802.11 messages are sent to its AP in the terminal, and carrying network side in the message is the IP address of terminal distribution according to the signatory grade of user;
802.11 messages that AP will receive convert Ethernet message to and send to AC;
AC confirms terminal use's signatory grade according to source IP address in the IP heading of message and message shunting mapping policy table, selects the shunt paths of coupling, and presses the message of selected shunt paths transmission terminal.
WLAN below in conjunction with shown in Figure 4 divides flow diagram, and the embodiment based on the shunt method of 802.11e is elaborated.
In shunt method, need terminal and AP to support the 802.11e agreement based on 802.11e; And based on the shunt method of 82.11e, need cooperate mechanism, the QoS service of different brackets can be provided for different user at wireless side, terminal and network side through 802.11e.
In the shunt method based on 802.11e, the terminal is provided with the class letter of the signatory grade of coupling according to user's signatory set meal in the 802.11e frame head that sends message; AP converts the class letter in the 802.11e frame head of receiving in the 802.1P message priority tag; After AC receives the 802.1P message,, select corresponding shunt paths according to the priority tag in the 802.1P frame head.As shown in Figure 5, mainly may further comprise the steps based on the shunting flow process of 802.11e:
Step 501, AC obtains the message shunting mapping policy table based on the signatory grade of user from strategic server.In this message shunting mapping policy table, comprise the mapping relations of 802.1P priority, signatory grade and shunt paths.
Step 502, UE starts shooting when perhaps the signatory set meal of user of UE upgrades for the first time, and the user need register the signatory grade of user of oneself on the login management software at terminal, be used to be connected to wlan network.
Step 503, UE is from the mapping table strategy of signatory set meal of strategic server download user and 802.11e transmission classification logotype (TCID, Traffic Category Identifier).The mapping table strategy can be downloaded from strategic server through management software.
Step 504, the terminal selects suitable TCID and 802.11e to insert kind of a Class Queue according to the mapping table of signatory grade of user and 802.11e TCID, sends the 802.11e message to AP.
Step 505 after AP receives the 802.11e message that comes from the terminal through wireless side, according to the TCID that receives in the 802.11e message, converts 802.11e MAC message the 802.1P message of corresponding priority to, is forwarded to AC then.
Step 506 after AC receives the 802.1P message, according to the signatory grade of the corresponding user of 802.1P, selects suitable shunt paths to send this message.This shunt paths can be: E-Packet to the Cellular Networks anchor point device, or E-Packet to WLAN local mobile anchor (W-LMA, WLAN Local Mobility Anchor) so that mobile management to be provided, or directly E-Packet to Internet.
In the present embodiment, the MPTS classification of 802.11e TCID is explained as follows:
802.11e in the frame head, TCID occupies 3 bits, has 8 transmission kinds, and is as shown in table 1 below:
Table 1
In the present embodiment, the 802.11e message is sent to AP in the terminal, can be according to user's signatory grade, for the TCID among the 802.11e selects corresponding value.After AP receives the 802.11e message, convert the 802.11e message to the 802.1P message, wherein have PRI (owner priority, the User Priority) option of 3 bits in the 802.1P frame head, the value of this 3 bit comes from the TCID in the 802.11e frame head.
This shows that in an embodiment of the present invention, the terminal need possess following function:
Login management software is installed; The mapping table strategy of signatory set meal of download user and 802.11e TCID; Support 802.11e, when sending message, select the 802.11e TCID of coupling according to the signatory set meal of user.
AP need possess following function:
Support 802.11e; AP maps to the 802.1P message one to one with 802.11e MAC message.
AC need possess following function:
Obtain the distributing strategy table from strategic server; Shunt according to 802.1P priority and distributing strategy table.
Present embodiment is selected distributing strategy based on user's set meal, carries out message and transmits; The different mapping table of configuration on terminal and AC is accomplished according to user's set meal to the mapping that flows to; Select to flow to based on user's set meal, can greatly reduce AC complexity and cost; Based on the shunting scheme of 802.11e, can realize that the QoS of different user grade ensures in wireless side.
Combine WLAN shown in Figure 4 to divide flow diagram below again, the embodiment based on the shunt method of VAP is elaborated.
Based on the shunt method of VAP, need AP to support the setting of VAP.AP is set to corresponding several kinds of VAP according to user's signatory set meal grade.The user selects corresponding VAP to insert according to the signatory grade of oneself.
The a plurality of VAP of the last configuration of AP, different VAP serve the user of different signatory grades, for example: through access services such as distinguishing number of users access, bandwidth constraints, security mechanism are provided, the guarantee of different brackets QoS is provided for the user.
Through the message that different VAP receive, will be mapped as the message of different 802.1P priority by AP; After AC receives the 802.1P message,, select corresponding shunt paths according to the priority tag in the 802.1P frame head.
Need on AP, dispose several VAP in the method, each VAP serves the user of different signatory grades, and this layoutprocedure can realize through the control and management of AC.Shunting flow process based on VAP is as shown in Figure 6, mainly may further comprise the steps:
Step 601, AC obtains the message shunting mapping policy table based on the signatory grade of user from strategic server.In this message shunting mapping policy table, comprise the mapping relations of 802.1P priority, signatory grade and shunt paths.
Step 602, UE starts shooting when perhaps the signatory set meal of user of UE upgrades for the first time, and the user need register the signatory grade of user of oneself on the login management software at terminal.
Step 603, UE selects to be connected to corresponding VAP according to the signatory grade of user.
Step 604, AP changes the 802.1P message of corresponding priority with the message of receiving, and is forwarded to AC according to the mapping table of VAP and 802.1P priority.
Step 605 after AC receives the 802.1P message, according to the signatory grade of the corresponding user of 802.1P, selects suitable shunt paths to send this message.This shunt paths can be: E-Packet to the Cellular Networks anchor point device, or E-Packet to W-LMA so that mobile management to be provided, or directly E-Packet to Internet.
This shows that in the embodiments of the invention, the terminal need possess following function:
Login management software is installed; Select the VAP of coupling to connect according to the signatory set meal of user.
AP need possess following function:
Support VAP; The VAP message is mapped to the 802.1P message one to one.
AC need possess following function:
Obtain the distributing strategy table from strategic server; Shunt according to 802.1P priority and distributing strategy table.
Present embodiment is selected distributing strategy based on user's set meal, carries out message and transmits; The different mapping table of configuration on terminal and AC is accomplished according to user's set meal to the mapping that flows to; Select to flow to based on user's set meal, can greatly reduce AC complexity and cost; Based on the shunting scheme of VAP, VAP is that the different signatory grades of user provides different classes of safety to insert Differentiated Services such as guarantee, allocated bandwidth.
Combine WLAN shown in Figure 4 to divide flow diagram below again, the embodiment of IP address-based shunt method is elaborated.As shown in Figure 7, mainly may further comprise the steps:
Step 701, AC obtains the message shunting mapping policy table based on the signatory grade of user from strategic server.In this message shunting mapping policy table, comprise the mapping relations of IP address, signatory grade and shunt paths.
Step 702, UE starts shooting when perhaps the signatory set meal of user of UE upgrades for the first time, and the user need register the signatory grade of user of oneself on the login management software at terminal.Network side can be the IP address in the terminal distribution corresponding section according to the signatory grade of user.
Step 703, UE sends 802.11 messages to AP, and carrying network side in the message is the IP address of terminal distribution.
Step 704,802.11 messages that AP will receive convert Ethernet message to and send to AC.
Step 705; After AC receives Ethernet message; According to source IP address in the IP heading of message and message shunting mapping policy table; Confirm terminal use's signatory grade (confirming user's signatory grade according to number segment limit under the source IP address), and select the shunt paths of coupling to send this message.This shunt paths can be: E-Packet to the Cellular Networks anchor point device, or E-Packet to W-LMA so that mobile management to be provided, or directly E-Packet to Internet.
Need to prove that also operation and function that the 802.1P message in the embodiment of the invention is realized also can adopt the 802.1Q message to substitute and realize that its operating process is identical, repeats no more here.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (11)
1. a wireless lan (wlan) shunt method is characterized in that, this method comprises:
Shunting net unit confirms terminal use's signatory grade according to from the class letter in the message at terminal;
The shunt paths of coupling is selected according to terminal use's signatory grade by said shunting net unit, and transmits said message by selected shunt paths.
2. according to the said WLAN shunt method of claim 1, it is characterized in that said shunting net is first confirms terminal use's signatory grade according to from the class letter in the message at terminal, the shunt paths according to terminal use's signatory grade selection is mated is specially:
Store message shunting mapping policy table in the said shunting network element in advance, comprise the mapping relations of class letter, signatory grade and shunt paths in the said mapping policy table based on signatory grade;
Said shunting net unit is according to the class letter in the message, and said mapping policy table, confirms terminal use's signatory grade, and selects the shunt paths of coupling.
3. according to claim 1 or 2 said WLAN shunt methods, it is characterized in that said shunt paths comprises: branch to the Internet, branch to the WLAN anchor point, branch to the Cellular Networks anchor point.
4. according to claim 1 or 2 said WLAN shunt methods, it is characterized in that said class letter is: 802.1P priority or IP address.
5. according to the said WLAN shunt method of claim 4, it is characterized in that when said class letter was 802.1P priority, this method further comprised:
Said terminal is according to the signatory grade of user and the preset signatory grade mapping relations with transmission classification logotype (TCID), the access point of selecting corresponding TCID to be carried to send to said terminal in the 802.11e message (AP);
Said AP is according to the TCID in the 802.11e message that receives, and converts said 802.11e message the 802.1P message of corresponding priority into, and said 802.1P message is sent to the shunting network element;
The said shunting net unit signatory grade corresponding according to said 802.1P message selected the shunt paths of mating.
6. according to the said WLAN shunt method of claim 4, it is characterized in that when said class letter was 802.1P priority, this method further comprised:
Corresponding virtual AP is selected to be connected to according to the signatory grade of user and the signatory grade of presetting and the mapping relations of virtual AP in said terminal;
Said AP is according to the preset virtual AP and the mapping relations of 802.1P priority, converts the message at terminal the 802.1P message of corresponding priority into, and said 802.1P message is sent to the shunting network element;
The said shunting net unit signatory grade corresponding according to said 802.1P message selected the shunt paths of mating.
7. according to the said WLAN shunt method of claim 4, it is characterized in that when said class letter was the IP address, this method further comprised:
802.11 messages are sent to its AP in the terminal, and carrying network side in the message is the IP address of terminal distribution according to the signatory grade of user;
802.11 messages that said AP will receive convert Ethernet message to and send to AC;
Said AC confirms terminal use's signatory grade according to source IP address in the IP heading of message and message shunting mapping policy table, selects the shunt paths of coupling.
8. a shunting network element is characterized in that, comprising:
The message receiver module is used for confirming terminal use's signatory grade according to the class letter that comes the message of self terminal;
Diverter module is used for the shunt paths according to terminal use's signatory grade selection coupling, and transmits said message by selected shunt paths.
9. said according to Claim 8 shunting network element; It is characterized in that; Said shunting network element further comprises: memory module, be used to store message shunting mapping policy table based on signatory grade, and comprise the mapping relations of class letter, signatory grade and shunt paths in the said mapping policy table;
Accordingly, said message receiver module is further used for, and according to the class letter in the message at terminal, and said mapping policy table, confirms terminal use's signatory grade.
10. according to Claim 8 or 9 said shunting network elements, it is characterized in that said shunt paths comprises: branch to the Internet, branch to the WLAN anchor point, branch to the Cellular Networks anchor point.
11. according to Claim 8 or 9 said shunting network elements, it is characterized in that said class letter is: 802.1P priority or IP address.
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| CN104602326A (en) * | 2014-12-25 | 2015-05-06 | 清华大学 | Method and device for realizing user service subdivision based on virtual access points |
| CN104754650A (en) * | 2013-12-26 | 2015-07-01 | 华为技术有限公司 | Network shunting method and network shunting device |
| CN105530682A (en) * | 2014-09-30 | 2016-04-27 | 华为技术有限公司 | Terminal access method and related device |
| CN106797667A (en) * | 2014-06-30 | 2017-05-31 | 交互数字专利控股公司 | For the network flow mobility of multi connectivity equipment |
| CN111343088A (en) * | 2020-02-21 | 2020-06-26 | 清华大学 | Message transmission method and device, terminal and storage medium |
| CN114978995A (en) * | 2022-05-26 | 2022-08-30 | 新华三技术有限公司 | Message forwarding path selection method and device |
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| CN105530682B (en) * | 2014-09-30 | 2019-06-18 | 华为技术有限公司 | A kind of terminal access method and relevant device |
| CN104602326A (en) * | 2014-12-25 | 2015-05-06 | 清华大学 | Method and device for realizing user service subdivision based on virtual access points |
| CN104602326B (en) * | 2014-12-25 | 2018-12-11 | 清华大学 | A kind of method and apparatus that user service subdivision is realized based on virtual access point |
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