CN1735051A - Wireless switching device and its method - Google Patents
Wireless switching device and its method Download PDFInfo
- Publication number
- CN1735051A CN1735051A CNA2004100551903A CN200410055190A CN1735051A CN 1735051 A CN1735051 A CN 1735051A CN A2004100551903 A CNA2004100551903 A CN A2004100551903A CN 200410055190 A CN200410055190 A CN 200410055190A CN 1735051 A CN1735051 A CN 1735051A
- Authority
- CN
- China
- Prior art keywords
- access point
- wireless
- user terminal
- network card
- wireless network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
This invention discloses a wireless switch device to switch and treat user terminal in different access point of wireless LAN, which comprises at least two wireless network interface cards that search separately fit access point and take receive-send treatment for wireless data package with access point after accessing wireless LAN, and data exchange units connected to the said network cards and terminals and transmitted the received data package to terminal and terminal's data package to network card. Accordingly, it also discloses a wireless switch method. The invention can shrink user time and complete switch treatment quickly.
Description
Technical field
The present invention relates to the wireless local area network technology field, relate in particular to a kind of wireless switching device shifter and method thereof that is applied in the wireless local area network (WLAN) system.
Background technology
WLAN (wireless local area network) (WLAN, Wireless Local-Area Network) be a kind ofly follow international Institute of Electrical and Electric Engineers (IEEE, Institute of Electrical and Electronics Engineers) 802.11 agreements, with the network system of electromagnetic wave as transmission medium.
IEEE 802.11 agreements comprise two physical layer standards: 802.11a standard and 802.11b standard, and wherein the working frequency range of 802.11a standard is at 2.4G, and the working frequency range of 802.11b standard is at 5G; 802.11a standard has all adopted identical media access control protocol (MAC, Media AccessControl) technology with the 802.11b standard.
Wireless local area network (WLAN) system mainly is made up of access point (AP, Access Point) and the terminal of having inserted wireless network card; Can set up following two kinds of mode of operations between the different terminals:
A. equity (Ad-Hoc) pattern of not having access point AP: under this pattern, can only directly carry out interconnected communication between the terminal by point-to-point mode;
B. infrastructure (Infrastructure) pattern that has access point AP to transmit: under this pattern, terminal can be passed through access point AP and wired network system interconnected communication; As shown in Figure 1, for adopting the wireless local area network (WLAN) system structural topology figure of infrastructure mode, the terminal 1 of having inserted wireless network card among the figure can be linked into wired network system by access point AP2.
Wherein, access point AP is equivalent to a hub (Hub) in wireless local area network (WLAN) system, can realize that data mutual between the user transmit between a plurality of interfaces, and wherein said interface comprises wave point and wireline interface.
At present, in wireless local area network (WLAN) system, the user seeks new access point AP by dual mode usually, and is specific as follows:
(1) diverse access point AP can detect by periodic broadcasting transmission beacon, detects allowing the user understand its present state information with the beacon that sends by this periodic broadcasting;
The user selects corresponding access point AP to insert the processing of WLAN (wireless local area network) according to the current state information of diverse access point AP.
(2) user initiatively sends the active probe frame to different access point AP;
After access point AP receives the active probe frame, will feed back the corresponding state information of self and give the user, the user determines to select corresponding access point AP to insert the processing of WLAN (wireless local area network) according to the feedback information of each access point AP.
After the user had selected corresponding access point AP, to communicate the main process that is connected as follows with this access point AP:
User terminal sends association request (association request) frame to this access point AP, to join in the wireless local area network (WLAN) system to this access point AP request;
After this access point AP received the association request frame, feedback association response (association response) frame was given user terminal, agreed that to show this user joins wireless local area network (WLAN) system.
But in wireless local area network (WLAN) system, when the zone that a user terminal is covered by current access point AP moves to regional that other access points AP covers, user terminal need be searched for new access point AP again, and begins the new process that communicates to connect with the new access point AP that searches.
See also Fig. 2, this figure is the rough schematic that user terminal carries out hand-off process in the wireless local area network (WLAN) system; Because in wireless local area network (WLAN) system, a user terminal can only communicate with an access point AP and be connected simultaneously, therefore when a user terminal when the overlay area of current access point AP1 moves to the overlay area of next access point AP2, must carry out and last access point AP1 and next access point AP2 between hand-off process, be that user terminal is in moving process, need communicating to connect of disconnection and last access point AP1, and scanning or search for the access point AP2 that other can insert, and after searching new access point AP2 and its rebulid and communicate to connect.
But user terminal is in moving process at present, generally all reach the several seconds search time of other access point AP that can insert of scanning search, be in the high-speed mobile process at user terminal like this, just need frequent switching probably, and so long search time, normally user side was insufferable, because this hand-off process that user terminal may occur in the high-speed mobile process does not also have enough time to finish, just need to have begun hand-off process next time, this shows that the hand-off process mode of prior art can have influence on the communication quality of user terminal undoubtedly.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of wireless switching device shifter and method thereof, to shorten user terminal is searched for new access point in handoff procedure time, makes user terminal can finish hand-off process fast.
For addressing the above problem, the present invention proposes a kind of wireless switching device shifter, be used for the wireless local network user terminal and between diverse access point, carry out hand-off process, comprising:
At least two wireless network cards, each wireless network card is searched for the access point that can insert respectively; And after the access point by search is linked into WLAN (wireless local area network), and the transmitting-receiving of carrying out wireless data packet between the access point is handled; And
The exchanges data unit is connected with described user terminal with each wireless network card respectively, is used for the packet that wireless network card receives is transmitted to user terminal; And the packet that user terminal is sent is transmitted to wireless network card.
Described device comprises that also packet chooses the unit, each wireless network card is chosen the unit by this packet respectively and is connected with described exchanges data unit, is used for choosing a packet and sending to the exchanges data unit and handle being transmitted the identical packet of carrying data content that comes by each wireless network card.
Wherein said wireless network card is connected with described exchanges data unit by Ethernet interface.Described exchanges data unit is connected with described user terminal by Ethernet interface.Described wireless switching device shifter is connected or external connection with described user terminal is built-in.
Correspondingly, the invention allows for a kind of wireless switching method, be used for the wireless local network user terminal and between diverse access point, carry out hand-off process, comprise step:
(1) is described at least one wireless network card of user terminal redundant configuration;
(2) when described user terminal keeps with the communicating to connect of former access point, the wireless network card of redundant configuration
Search for other access points that can insert respectively;
(3) user terminal is chosen an access point that will insert that conduct is new in the access point that searches;
(4) described user terminal is set up and is chosen communicating to connect between the access point, and disconnection and former access point
Communicate to connect.
The corresponding access point state information of carrying was searched for corresponding access point during the wireless network card of redundant configuration was detectd by the beacon of diverse access point broadcasting on the scanning common signal channel in the wherein said step (2); Or
Send the active probe frame to each access point,, search for corresponding access point by checking the state information of each access point feedback.
User terminal is chosen the access point of strength of transmitted signals maximum as the new access point that will insert in the wherein said step (3) in the access point that searches.
Described step (4) also comprises step:
Before described user terminal pair and former access point disconnect and communicating to connect, and and choose the establish a communications link processing mode of the packet employing that the carrying data content of reception is identical state under of access point and be:
One of picked at random is handled in the identical packet of carrying data content; Or
Abandon the identical packet of all carrying data contents.
Wherein said step (4) also comprises step afterwards: when user terminal breaks down at current in running order wireless network card, shift follow-up work and proceed to another wireless network card of redundant configuration.
Wireless switching device shifter of the present invention and method thereof are by being at least two wireless network cards of terminal access device configuration, thereby can realize that user terminal is in the high-speed mobile process in the existing wireless local area network (WLAN) system, when one of them wireless network card is in running order, the wireless network card of all the other configurations plays the effect of redundant configuration, like this when the user terminal occurrence positions switches, other play redundant effect wireless network card can user terminal and under the situation of an access point proper communication, the access point that inserts that active searching is new, and foundation communicates with connection; Therefore can be implemented in when user terminal frequently switches processing in the prior art, shorten the new shared time of access point of search, improved user terminal and finished the speed of hand-off process and the communication quality of user terminal.
Description of drawings
Fig. 1 is the wireless local area network (WLAN) system structural topology figure that adopts infrastructure mode;
Fig. 2 is the rough schematic that user terminal carries out hand-off process in the wireless local area network (WLAN) system;
Fig. 3 is the concrete part of the wireless switching device shifter of the present invention and the operation principle schematic diagram of this switching device shifter thereof;
Fig. 4 is that the wireless switching device shifter of the present invention causes receiving a plurality of repetitive data packet for preventing owing to a plurality of wireless network cards exist, and adds the concrete composition frame chart of wireless switching device shifter that packet is chosen the unit;
Fig. 5 is the realization principle flow chart of wireless switching method of the present invention;
Fig. 6 is that user terminal carries out the schematic diagram of hand-off process after having adopted wireless switching device shifter of the present invention and method thereof between a plurality of access points.
Embodiment
Wireless switching device shifter of the present invention and method thereof adopt the mode of redundant configuration wireless network card, improve wireless local area network (WLAN) system high speed mobile subscriber in frequent handoff process, search for the speed of new access point AP, to improve the communication quality of user terminal in frequent handoff procedure.
At first be explained in detail below in conjunction with the embodiment of each accompanying drawing to the wireless switching device shifter of the present invention; See also Fig. 3, this figure is the concrete part of the wireless switching device shifter of the present invention and the operation principle schematic diagram of this switching device shifter thereof; Wherein this wireless switching device shifter mainly comprises at least two wireless network cards 10 and exchanges data unit 20, and the concrete effect and the annexation thereof of each entity are as follows:
At least two wireless network cards 10, each wireless network card 10 is respectively applied for the access point AP that search can insert; And after the access point AP by search is linked into WLAN (wireless local area network), and carry out the transmitting-receiving processing of wireless data packet between the access point AP; Wherein the common signal channel in each wireless network card 10 responsible Wlan scanning system selects suitable wireless local network connecting point AP to insert processing according to the transmit signal strength of each access point AP.And after wireless network card 10 is linked into wireless local area network (WLAN) system by the access point AP that selects, be responsible for the packet forwarding between wave point (wave point refers to the interface with access point AP wireless connections) and the data-interface (referring to the interface with exchanges data unit 20 wired connections, data-interface 1 as shown in FIG. and data-interface 2); And different wireless network cards 10 selects different physical channels to communicate connection with the access point AP that selects respectively.
The packet that will transmit with the data-interface (data-interface shown in the figure 1 or data-interface 2) that wireless network card 10 connects only is forwarded to the data-interface (data-interface shown in the figure 3) that is connected with user terminal; The represented direction of dotted arrow is the packet routing direction among Fig. 3;
And the packet that the data-interface that will be connected with user terminal (data-interface shown in the figure 3) transmits is transmitted to all data-interfaces that are connected with wireless network card 10 (data-interface shown in the figure 1 or data-interface 2); The represented direction of solid arrow is the packet routing direction among Fig. 3.
See also Fig. 4, this figure is that the wireless switching device shifter of the present invention causes receiving a plurality of repetitive data packet for preventing owing to a plurality of wireless network cards exist, and adds the concrete composition frame chart of wireless switching device shifter that packet is chosen the unit; Specifically form on the basis of structure at above-mentioned wireless switching device shifter among the figure, and then comprise that also a packet chooses unit 30, wherein each wireless network card 10 is chosen unit 30 by this packet respectively and is connected with exchanges data unit 20, and packet is chosen unit 30 and is mainly used in and sends to exchanges data unit 20 choose a packet in transmitted the identical packet of the carrying data content that comes by each wireless network card 10 after and handle.It mainly is because after having adopted wireless switching device shifter of the present invention that wherein wireless switching device shifter adding packet is chosen unit 30, as long as have a wireless network card 10 to be linked into wireless local area network (WLAN) system in all wireless network cards 10 that are connected with exchanges data unit 20, the user terminal that is connected with exchanges data unit 20 can normally be linked into wireless local area network (WLAN) system so.If but exist a plurality of wireless network cards 10 to be linked into wireless local area network (WLAN) system simultaneously, at this moment a plurality of copy forms that user terminal receives the same packet of network side transmitted will appear, so in order to reduce the processing expenditure of exchanges data unit 20, just need be before the 20 pairs of packets in exchanges data unit be transmitted processing, packet to a plurality of repetitions of receiving carries out filtration treatment, and packet wherein is set, and to choose the purpose of unit 30 be exactly in order to finish this task.Certainly, if not being set, packet do not choose unit 30, simultaneously in order to reduce the processing expenditure of exchanges data unit 20 in this case, also can select to abandon the processing mode of the packet of these contents repetitions by exchanges data unit 20, because the time that this situation exists is shorter, just in the process of switching, have of short duration appearance, so abandon the carrying out that packet in this blink can not influence whole communication process.
Above-mentioned each wireless network card 10 can be connected with exchanges data unit 20 by Ethernet interface, can certainly be connected with exchanges data unit 20 by other forms of data-interface, even can connect by the private data interface.
Simultaneously, exchanges data unit 20 also can be connected (data-interface 2 or 3 as shown in Figure 3) by Ethernet interface with user terminal, can certainly select for use other general data-interfaces to connect.
Wherein can carry out built-in the connection between the wireless switching device shifter of the above-mentioned proposition of the present invention and the user terminal, also can carry out external connection, i.e. this wireless switching device shifter part that can be terminal, can be connected in exterior of terminal, also terminal inner can be connected in, and two wireless network cards will be provided with at least in each wireless switching device shifter.
Correspondingly, the invention allows for a kind of wireless switching method, in conjunction with the accompanying drawings wireless switching method of the present invention is elaborated again below.See also Fig. 5, this figure is the realization principle flow chart of wireless switching method of the present invention; Its main implementation procedure is as follows:
Step S10 is each at least one wireless network card of user terminal redundant configuration in advance;
Step S20, user terminal in the high-speed mobile process, when keeping with the communicating to connect of former access point AP, among the step S10 wireless network card of redundant configuration can switch handle before searched in advance other access points AP that can insert respectively; The corresponding access point state information of carrying during wherein the wireless network card of redundant configuration can be detectd by the beacon of diverse access point AP broadcasting on the common signal channel in the Wlan scanning system, search for corresponding access point (this technology is described in prior art, does not repeat them here); Or send the active probe frame to each access point AP, by checking the state information of each access point AP feedback, search for corresponding access point AP (this technology is also described in prior art, does not repeat them here) again.
Step S30 chooses an AP as the new access point AP that will insert among the access point AP that user terminal searches in step S20; Wherein user terminal can be chosen the access point AP of strength of transmitted signals maximum as the new access point AP that will insert in the access point AP that searches; Can certainly take all factors into consideration the oeverall quality that each access point AP transmits, decide and choose which access point AP as the access point AP that will insert.
Communicating to connect between the access point AP that step S40, user terminal set up and step S30 chooses, and the communicating to connect of disconnection and former access point AP.Wherein user terminal and the access point AP two kinds of processing modes being taked that how to establish a communications link have elaborated in the prior art, no longer too much give unnecessary details here.
In like manner, in step S40 user terminal switches process, when user terminal pair and former access point AP disconnect communicate to connect before, and and choose access point AP set up communication connection status down the identical packet of carrying data content of reception will adopt following processing mode to handle:
Packet of picked at random is handled in the identical packet of the carrying data content that receives; Or directly abandon all carrying data contents identical packets of reception.
After adopting wireless switching method of the present invention simultaneously, when if user terminal breaks down at current in running order wireless network card, can shift follow-up work and to another wireless network card of redundant configuration, proceed to get final product, so just can prevent communication disruption.
See also Fig. 6, this figure is that user terminal carries out the schematic diagram of hand-off process after having adopted wireless switching device shifter of the present invention and method thereof between a plurality of access points; As shown in the figure, after domestic consumer of the prior art terminal has been installed wireless switching device shifter of the present invention, when in wireless local area network (WLAN) system, being in high-speed moving state, enter into the overlay area of another one AP in overlay area after by an AP, can keep with original AP communicate be connected in, allow other access points of wireless network card active searching AP of other redundant configuration, like this, just can be implemented in original AP and communicate on the connection basis, the search of the AP that switches to is handled and is being carried out synchronously, the user terminal that this device promptly is housed can just can search other wireless local network connecting point AP before original connection disconnects, and be linked into wireless local area network (WLAN) system by the AP that searches, therefore can save the time that user terminal switches greatly between different AP like this.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1, a kind of wireless switching device shifter is used for the wireless local network user terminal and carries out hand-off process between diverse access point, it is characterized in that, comprising:
At least two wireless network cards, each wireless network card is searched for the access point that can insert respectively; And after the access point by search is linked into WLAN (wireless local area network), and the transmitting-receiving of carrying out wireless data packet between the access point is handled; And
The exchanges data unit is connected with described user terminal with each wireless network card respectively, is used for the packet that wireless network card receives is transmitted to user terminal; And the packet that user terminal is sent is transmitted to wireless network card.
2, wireless switching device shifter according to claim 1, it is characterized in that, comprise that also packet chooses the unit, each wireless network card is chosen the unit by this packet respectively and is connected with described exchanges data unit, is used for choosing a packet and sending to the exchanges data unit and handle being transmitted the identical packet of carrying data content that comes by each wireless network card.
3, wireless switching device shifter according to claim 1 and 2 is characterized in that, described wireless network card is connected with described exchanges data unit by Ethernet interface.
4, wireless switching device shifter according to claim 1 and 2 is characterized in that, described exchanges data unit is connected with described user terminal by Ethernet interface.
5, wireless switching device shifter according to claim 1 is characterized in that, described wireless switching device shifter is connected or external connection with described user terminal is built-in.
6, a kind of wireless switching method is used for the wireless local network user terminal and carries out hand-off process between diverse access point, it is characterized in that, comprises step:
(1) is described at least one wireless network card of user terminal redundant configuration;
(2) when described user terminal kept with the communicating to connect of former access point, the wireless network card of redundant configuration was searched for other access points that can insert respectively;
(3) user terminal is chosen an access point that will insert that conduct is new in the access point that searches;
(4) described user terminal is set up and is chosen communicating to connect between the access point, and the communicating to connect of disconnection and former access point.
7, wireless switching method according to claim 6, it is characterized in that, the corresponding access point state information of carrying was searched for corresponding access point during the wireless network card of redundant configuration was detectd by the beacon of diverse access point broadcasting on the scanning common signal channel in the described step (2); Or
Send the active probe frame to each access point,, search for corresponding access point by checking the state information of each access point feedback.
8, wireless switching method according to claim 6 is characterized in that, user terminal is chosen the access point of strength of transmitted signals maximum as the new access point that will insert in the described step (3) in the access point that searches.
9, wireless switching method according to claim 6 is characterized in that, described step (4) also comprises step:
Before described user terminal pair and former access point disconnect and communicating to connect, and and choose the establish a communications link processing mode of the packet employing that the carrying data content of reception is identical state under of access point and be:
One of picked at random is handled in the identical packet of carrying data content; Or
Abandon the identical packet of all carrying data contents.
10, according to any described wireless switching method of claim of claim 6～9, it is characterized in that, described step (4) also comprises step afterwards: when user terminal breaks down at current in running order wireless network card, shift follow-up work and proceed to another wireless network card of redundant configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100551903A CN100391182C (en) | 2004-08-12 | 2004-08-12 | Wireless switching device and its method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100551903A CN100391182C (en) | 2004-08-12 | 2004-08-12 | Wireless switching device and its method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1735051A true CN1735051A (en) | 2006-02-15 |
| CN100391182C CN100391182C (en) | 2008-05-28 |
Family
ID=36077259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100551903A Expired - Fee Related CN100391182C (en) | 2004-08-12 | 2004-08-12 | Wireless switching device and its method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100391182C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387015C (en) * | 2006-02-20 | 2008-05-07 | 华为技术有限公司 | Business scheduling system and method in wireless net-like network |
| CN101980468A (en) * | 2010-12-06 | 2011-02-23 | 南京恩瑞特实业有限公司 | Network hot backup data transmission method |
| CN101610553B (en) * | 2008-06-17 | 2011-04-27 | 福建工程学院 | Method for quick multi-wireless module switching |
| CN101325528B (en) * | 2008-08-04 | 2011-07-27 | 长春希达电子技术有限公司 | Device for capturing display parameter of LED display screen based on wireless data communication |
| CN102799153A (en) * | 2012-07-13 | 2012-11-28 | 西南交通大学 | Wired and wireless hot-standby redundancy multi-master communication method and field network node module |
| CN103024809A (en) * | 2011-09-22 | 2013-04-03 | 启碁科技股份有限公司 | Method for improving speed of wireless network, and wireless network device |
| CN105025183A (en) * | 2015-07-08 | 2015-11-04 | 汉柏科技有限公司 | Method achieving dialing connection and information processing storage through dynamic switching of wireless network card |
| CN105744597A (en) * | 2014-12-12 | 2016-07-06 | 华为终端（东莞）有限公司 | Terminal and wireless connection method |
| CN107666696A (en) * | 2016-07-27 | 2018-02-06 | 中兴通讯股份有限公司 | The switching method and terminal of a kind of wireless network |
| WO2018098943A1 (en) * | 2016-12-01 | 2018-06-07 | 华为技术有限公司 | Wireless local area network access point switching method, and terminal |
| CN108966302A (en) * | 2017-05-18 | 2018-12-07 | 华为技术有限公司 | Realize method, equipment and the system switched between AP |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100508474C (en) * | 2002-02-10 | 2009-07-01 | 华为技术有限公司 | Method for switching over between switch-in points moving terminal in wireless local network |
| EP1496711A1 (en) * | 2002-04-17 | 2005-01-12 | NEC Corporation | Handover control method |
| KR100448318B1 (en) * | 2002-11-08 | 2004-09-16 | 삼성전자주식회사 | Method for hand-off in a wileless network |
| US20060153133A1 (en) * | 2002-12-11 | 2006-07-13 | Koninklijke Philips Electronics N.V. | System and method for performing a fast handoff in a wireless local area network |
-
2004
- 2004-08-12 CN CNB2004100551903A patent/CN100391182C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387015C (en) * | 2006-02-20 | 2008-05-07 | 华为技术有限公司 | Business scheduling system and method in wireless net-like network |
| CN101610553B (en) * | 2008-06-17 | 2011-04-27 | 福建工程学院 | Method for quick multi-wireless module switching |
| CN101325528B (en) * | 2008-08-04 | 2011-07-27 | 长春希达电子技术有限公司 | Device for capturing display parameter of LED display screen based on wireless data communication |
| CN101980468A (en) * | 2010-12-06 | 2011-02-23 | 南京恩瑞特实业有限公司 | Network hot backup data transmission method |
| CN103024809A (en) * | 2011-09-22 | 2013-04-03 | 启碁科技股份有限公司 | Method for improving speed of wireless network, and wireless network device |
| CN103024809B (en) * | 2011-09-22 | 2016-01-20 | 启碁科技股份有限公司 | Improve method and the radio network device of wireless network speed |
| CN102799153A (en) * | 2012-07-13 | 2012-11-28 | 西南交通大学 | Wired and wireless hot-standby redundancy multi-master communication method and field network node module |
| CN105744597B (en) * | 2014-12-12 | 2019-06-21 | 华为终端有限公司 | A kind of terminal and its wireless connection method |
| CN105744597A (en) * | 2014-12-12 | 2016-07-06 | 华为终端（东莞）有限公司 | Terminal and wireless connection method |
| CN105025183A (en) * | 2015-07-08 | 2015-11-04 | 汉柏科技有限公司 | Method achieving dialing connection and information processing storage through dynamic switching of wireless network card |
| CN105025183B (en) * | 2015-07-08 | 2018-04-13 | 汉柏科技有限公司 | The method that switching at runtime wireless network card realizes dial-up connection and its information processing storage |
| CN107666696A (en) * | 2016-07-27 | 2018-02-06 | 中兴通讯股份有限公司 | The switching method and terminal of a kind of wireless network |
| WO2018098943A1 (en) * | 2016-12-01 | 2018-06-07 | 华为技术有限公司 | Wireless local area network access point switching method, and terminal |
| CN108476451A (en) * | 2016-12-01 | 2018-08-31 | 华为技术有限公司 | The method and terminal of wireless local network connecting point switching |
| CN108966302A (en) * | 2017-05-18 | 2018-12-07 | 华为技术有限公司 | Realize method, equipment and the system switched between AP |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100391182C (en) | 2008-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1282388C (en) | Mobile terminal and telecommunication method | |
| CN1290374C (en) | System, apparatus and method of controlling mobile terminal handover | |
| Huang et al. | A fast handoff mechanism for IEEE 802.11 and IAPP networks | |
| CN103517360B (en) | Switching method, system and device | |
| CN102752823B (en) | Method for switching user terminal between access joints in WLAN (Wireless Local Area Network) based on AP (Access Point) collaboration | |
| EP1512248B1 (en) | Efficient handoffs between cellular and wireless local area networks | |
| US6831904B1 (en) | Cluster structured mobile communication system base station, cluster control station, line control station and mobile station | |
| CN1520107A (en) | Method of actuating switching in radio network | |
| CN1703019A (en) | Seamless handoff method in wireless local area network | |
| CN1568044A (en) | Method of seamless home agent switching of mobile IPv6 | |
| KR100943888B1 (en) | Apparatus and method for packet data service through multiple heterogeneous networks | |
| CN1732708A (en) | Wireless communication system, wireless communication method, wireless communication program, program recorded medium | |
| CN1855869A (en) | Handoff method in wireless lan, and access point and mobile station performing handoff method | |
| CN1764161A (en) | Data transmission set, method, program and recording medium | |
| CN102843302A (en) | Terminal access method and device | |
| CN1658571A (en) | Managing network information in access routers (ARs) | |
| CN1735051A (en) | Wireless switching device and its method | |
| CN1823500A (en) | Method for reducing hand-off latency in mobile networks | |
| CN101208908B (en) | Access point and method for delivering information on media independent handover protocol | |
| CN1856170A (en) | Traffic handover control device and method of multi-mode mobile communication terminal | |
| CN1856171A (en) | Method for performing roaming in dual mode mobile terminal capable of preventing ping-pong phenomenon | |
| CN1650178A (en) | Methods and apparatus for uplink macro-diversity in packet-switched cellular networks | |
| CN1863344A (en) | Wireless access network and wireless access system and method | |
| CN101035375A (en) | Self-adaptive communication system, terminal, method and access point | |
| CN105451274A (en) | Network convergence preprocessing method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160425 Address after: American California Patentee after: Snaptrack, Inc. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20180812 |