CN1438789A - Method for swhiching over between swith-in points moving terminal in winefree local network - Google Patents
Method for swhiching over between swith-in points moving terminal in winefree local network Download PDFInfo
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- CN1438789A CN1438789A CN 02110852 CN02110852A CN1438789A CN 1438789 A CN1438789 A CN 1438789A CN 02110852 CN02110852 CN 02110852 CN 02110852 A CN02110852 A CN 02110852A CN 1438789 A CN1438789 A CN 1438789A
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Abstract
The method for switching accessing points (AP) includes following steps. (1) At the same time of keeping the link with the current AP, the user tests the AP signal intensity and quality to determine whether the which AP to switch to. (2) The user carries out the connection with the selected AP. (3) The ID of the user is reported to the wireless gateway. (4) The gateway looks up the user list. (5) Based on the AP address of the switching in user, the switching notice is sent to the original AP. (6) With the notice being received, the original AP sends the user's information to the new AP. (7) the gateway informs the new AP that the user is a switching in user and sends the relevant information to the new AP. (8) with the user being switched in, the new AP sends the acknowledge information to the gateway.
Description
Technical field
The present invention relates to the method that portable terminal switches in the WLAN (wireless local area network) between access point (AP).
Background technology
WLAN (wireless local area network) is utilized less radio-frequency, and (radio frequency, RF) technology is transmitted data, speech and vision signal aloft.With respect to the traditional wiring network, WLAN (wireless local area network) has installs conveniently, use flexibly, and economy and be easy to characteristics such as expansion, thereby come into one's own day by day.The terminal mobility of WLAN (wireless local area network) is it with respect to one of considerable advantage of routing network.Portable terminal wants to realize in the larger context certainly will will realize the switching between AP (access point), as shown in Figure 1 to transparent the moving of mobile phone users.
Traditional AP method for switching between is: in portable terminal and AP communication period, if terminal has shifted out the coverage of AP, perhaps owing to disturb, communication quality can't guarantee, just need switch to other communication qualities AP preferably.When carrying out switching, portable terminal at first sends connection request to new AP, and to the original position that connects AP (former AP) of new AP notice.Notify former AP to disconnect and being connected of this portable terminal by new AP, and obtain the state information of mobile phone users from former AP.
The tradition changing method adopts the switching construction of distributed equity, and all information interactions and control are all cooperated by two AP to be finished.Therefore the Processing tasks of AP is relatively complicated.And, if mistake occurs in the conventional method handoff procedure, being not easy to recover original state automatically, fault-tolerant ability is not strong.
Because all information that can the memory mobile terminal user on the AP, such as user quality demand (Qos) information, therefore, traditional changing method is difficult to realize guaranteeing the switching of Qos.
Traditional changing method is provided the positional information of former AP by mobile phone users.And in some cases, the information that mobile phone users provides is also incorrect.When switching between two AP fast such as the family, this situation often takes place.If this information provides mistake, can cause handoff failure.
In addition, traditional changing method notifies former AP to disconnect connection by new AP, and obtains the state information of mobile phone users, and this can produce potential safety hazard.The assailant of malice can palm off AP, obtains the mobile phone users sensitive information.
Summary of the invention
The objective of the invention is in order to overcome the method that portable terminal in the existing WLAN (wireless local area network) switches, and provide a kind ofly have centralized control structure, handoff procedure by the method for switching between portable terminal AP in radio network gateway or special-purpose switching controls server centered WLAN (wireless local area network) control, new.
The object of the present invention is achieved like this: the method that portable terminal switches between access point in a kind of WLAN (wireless local area network), it is characterized in that, and may further comprise the steps:
1) mobile phone users is when keeping and the current access point is connected, and which new access point the signal strength signal intensity and the quality of other access points of measurement determine whether to switch and switch to by the user according to measured value then earlier;
2) mobile phone users communicates with the new access point of selecting and is connected;
3) after mobile phone users and new access point established a communications link, access point reported radio network gateway with the mobile phone users sign;
4) radio network gateway is searched and is inserted the mobile phone users tabulation, obtains the address of the former access point of this mobile phone users;
5) radio network gateway sends switching notice according to the access point address of storage in the tabulation to former access point;
6) data cached, state information with this mobile phone users after former access point has notice directly are sent to new access point;
7) this mobile phone users of radio network gateway notice new access point is the switching mobile phone users simultaneously, and the relevant information of this mobile phone users is sent to this new access point;
8) after new access point has notice, insert this mobile phone users; After new access point is judged handover success, send out confirmation to radio network gateway;
9) radio network gateway is received after the handover success acknowledge message, upgrades the access point address of inserting in the mobile phone users tabulation, notifies former access point to delete this mobile phone users state information.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, in the described access point handoff procedure, the recipient of information can confirm the interactive information of receiving, after affirmation, begins next step action again; If acknowledge message is overtime, then return to original state.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network) wherein, comprises mobile phone users terminal address and new access point address in the notice described in the step 5).
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, the described former access point of step 6) transmits data cached, the state information of this mobile phone users and can be transmitted by radio network gateway.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, the state information described in the step 6) comprises encryption key.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, the relevant information described in the step 7) comprises mobile phone users quality requirement information.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, the step 7) radio network gateway can issue the control message when relevant information of this mobile phone users is sent to new access point, and the notice switching equipment is revised the forwarding route corresponding to this address.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, described can be destination address with the mobile phone users address for the access control success, sends out test packet.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, the judgement described in the step 8) switches whether successful method is: send test packet by radio network gateway, access point then can be confirmed handover success after receiving test packet.
The method that portable terminal switches between access point in the above-mentioned WLAN (wireless local area network), wherein, described radio network gateway can authenticate former access point and new access point, and interactive information is encrypted.
Because the present invention has adopted above technical scheme, part control and interactive task are finished by server, therefore, with respect to traditional changing method, the Processing tasks of AP (access point) is simple relatively.And this structure fault-tolerant ability is stronger relatively, even mistake occurs, also can be easy to return to form.Simultaneously, this method can realize guaranteeing that Qos switches, and can authenticate the AP identity, prevents to palm off the attack of AP.Simultaneously, handover measurement and judgement are all finished by the user, have reduced the Processing tasks of AP, have reduced the AP complexity.
Description of drawings
Specific performance feature of the present invention is further described by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation that the prior art portable terminal switches between two AP.
Fig. 2 is handover information interaction diagrams of the present invention.
Embodiment
The method that mobile terminal of wireless local area network of the present invention switches between access point may further comprise the steps:
1) mobile phone users is when keeping and the current access point is connected, and which access point the signal strength signal intensity and the quality of other access points of measurement determine whether to switch and switch to by the user according to measured value then earlier;
2) mobile phone users is connected with the access point of selecting;
3) with after access point connects, access point reports radio network gateway with the mobile phone users sign;
4) radio network gateway is searched and is inserted the mobile phone users tabulation, obtains the address of the former access point of this mobile phone users;
5) radio network gateway sends switching notice according to the access point address of inserting storage in the mobile phone users tabulation to former access point;
6) data cached, state information with this mobile phone users after former access point has notice directly are sent to new access point;
7) this mobile phone users of radio network gateway notice new access point is the switching mobile phone users simultaneously, and the relevant information of this mobile phone users is sent to this new access point.
8) after new access point has notice, insert this mobile phone users; After new access point is judged handover success, send out confirmation to radio network gateway;
9) radio network gateway is received after the handover success acknowledge message, upgrades the access point address of inserting in the mobile phone users tabulation, notifies former access point to delete this mobile phone users state information.
In above process, interactive information can have corresponding confirmation.Only receive acknowledge message, just begin next step.If acknowledge message is overtime, then return to original state.Simultaneously, in order to guarantee safety, radio network gateway can authenticate former AP and new AP, and interactive information is encrypted.
The present invention needs AP to cooperate with radio network gateway or special-purpose switching controls server to finish.Whole handoff procedure is controlled by radio network gateway.Whenever new mobile phone users and AP connect, after access authentication, radio network gateway is this mobile phone users sign, as the place terminal address and connect the AP address and relevant information deposits in and inserts the mobile phone users tabulation.Relevant information comprises some required information of maintenance mobile phone users business continuance, such as Qos information.After mobile phone users rolled off the production line, these information were just deleted.The user is keeping measuring signal strength signal intensity and the quality of other AP with when current AP is connected.Determine whether to switch and switch to which AP by the user according to measured value.The user switches to new AP, and when connecting with new AP, AP at first reports radio network gateway with this mobile phone users sign, searches the address that obtains the former access point of this mobile phone users by radio network gateway in inserting the mobile phone users tabulation; According to inserting canned data in the mobile phone users tabulation, send switching notice by radio network gateway to former AP.In the switching notice, comprise the address of mobile phone users sign and new AP.After former AP receives switching notice, the business datum that belongs to this mobile phone users of buffer memory is sent to new AP.For keeping professional continuity, former AP also should send the encryption key and other the state information of this mobile phone users to new AP.These information can directly send to new AP, also can transmit by radio network gateway.Finish after these operations, former AP still keeps the state information of this mobile phone users.Radio network gateway then sends the switching controls message to subordinate's switching equipment, and the control switching equipment is revised routing iinformation, the business datum that sends to this mobile phone users is switched to new AP go up.Radio network gateway is notified new AP simultaneously, allow this mobile phone users to insert and need not this mobile phone users is authenticated, and the mobile phone users relevant information that will insert in the mobile phone users tabulation is handed down to new AP.New AP finishes after the switching, and radio network gateway upgrades the information that inserts this mobile phone users in the mobile phone users tabulation, and notifies former AP to disconnect and being connected of this mobile phone users, and state information is deleted.Former AP kept the state information of this mobile phone users always before handover success, can guarantee if handoff failure can recover original state, thereby avoid loss of state.And radio network gateway also is for same consideration in the tabulation of the later just renewal of handover success access mobile phone users.
When mobile phone users initiatively rolled off the production line, AP needn't keep this mobile phone users state information, and the notice radio network gateway should be deleted the relevant information of this mobile phone users immediately from tabulation.If but be connected disconnection between mobile phone users and the AP, and and initiatively do not roll off the production line, might be that mobile phone users shifts out coverage and causes.Therefore, AP should be in the certain hour scope, and the business datum of this mobile phone users of buffer memory is hold mode information simultaneously, so that finish handover operation.
The present invention is further described in more detail below in conjunction with accompanying drawing 2 and specific embodiment.
If after the portable terminal MT1 of mobile phone users A and AP1 connected, radio network gateway AS identified this mobile phone users with MAC Address Uaddress1, and the address Aaddress1 of storage AP1.Portable terminal is keeping measuring signal strength signal intensity and the quality of other AP with when AP1 is connected.The signal quality of finding AP2 is better, and decision switches to AP2.The user sends connection request (message 1) to AP2.AP2 reports MT1 address Uaddress1 (message 2), after AS receives this information, sends switching notice (message 3) to AP1.AP1 then sends the data cached and state information (message 6) of MT1 to AP2.AS issues routing forwarding simultaneously and upgrades control message (message 4), and notice AP2 MT1 is for switching mobile phone users (message 5).AP2 inserts MT1, receives after the test packet of AS, replys handover success information (message 7).AS receives after this message, the address Aaddress2 of storage AP2, and notice AP1 deletion MT1 state information (message 8).
Advantage of the present invention is tangible:
1) because the control of switching is finished by radio network gateway, the AP Processing tasks is simple relatively, reduces cost;
2) radio network gateway bank switching status data, even mistake appears in handoff procedure, system can return to original state simply, fault-tolerant ability is strong;
3) radio network gateway memory mobile terminal user Qos data, and in handoff procedure, be issued to new AP, can realize guaranteeing the switching of Qos;
When 4) switching, the address information of former AP be can't help mobile phone users to be provided, and is provided by radio network gateway, has avoided mobile phone users that error message is provided and the handoff failure that causes;
5) radio network gateway can authenticate AP, has guaranteed the safety of handoff procedure.
6) handover measurement and judgement all have the user to finish, and have reduced the workload of AP, have reduced the complexity of AP.
Claims (10)
1, the method that portable terminal switches between access point in a kind of WLAN (wireless local area network) is characterized in that, may further comprise the steps:
1) mobile phone users is when keeping and the current access point is connected, and which new access point the signal strength signal intensity and the quality of other access points of measurement determine whether to switch and switch to by the user according to measured value then earlier;
2) mobile phone users communicates with the new access point of selecting and is connected;
3) after mobile phone users and new access point established a communications link, access point reported radio network gateway with the mobile phone users sign;
4) radio network gateway is searched and is inserted the mobile phone users tabulation, obtains the address of the former access point of this mobile phone users;
5) radio network gateway sends switching notice according to the access point address of storage in the tabulation to former access point;
6) data cached, state information with this mobile phone users after former access point has notice directly are sent to new access point;
7) this mobile phone users of radio network gateway notice new access point is the switching mobile phone users simultaneously, and the relevant information of this mobile phone users is sent to this new access point;
8) after new access point has notice, insert this mobile phone users; After new access point is judged handover success, send out confirmation to radio network gateway;
9) radio network gateway is received after the handover success acknowledge message, upgrades the access point address of inserting in the mobile phone users tabulation, notifies former access point to delete this mobile phone users state information.
2, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1, it is characterized in that in the described access point handoff procedure, the recipient of information can confirm the interactive information of receiving, after affirmation, begin next step action again; If acknowledge message is overtime, then return to original state.
3, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1 is characterized in that, comprises mobile phone users terminal address and new access point address in the notice described in the step 5).
4, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1 is characterized in that, the described former access point of step 6) transmits data cached, the state information of this mobile phone users and can be transmitted by radio network gateway.
5, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1 is characterized in that, the state information described in the step 6) comprises encryption key.
6, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1 is characterized in that, the relevant information described in the step 7) comprises mobile phone users quality requirement information.
7, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1, it is characterized in that, the step 7) radio network gateway can issue the control message when relevant information of this mobile phone users is sent to new access point, and the notice switching equipment is revised the forwarding route corresponding to this address.
8, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 7 is characterized in that, described can be destination address with the mobile phone users address for the access control success, sends out test packet.
9, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1, it is characterized in that, judgement described in the step 8) switches whether successful method is: send test packet by radio network gateway, access point then can be confirmed handover success after receiving test packet.
10, the method that portable terminal switches between access point in the WLAN (wireless local area network) according to claim 1 is characterized in that, described radio network gateway can authenticate former access point and new access point, and interactive information is encrypted.
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| CNB021108528A CN100508474C (en) | 2002-02-10 | 2002-02-10 | Method for switching over between switch-in points moving terminal in wireless local network |
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| CNB021108528A CN100508474C (en) | 2002-02-10 | 2002-02-10 | Method for switching over between switch-in points moving terminal in wireless local network |
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Cited By (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005101686A1 (en) * | 2004-04-15 | 2005-10-27 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Intelligent wireless switch (iws) and intelligent radio coverage for mobile applications |
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| CN104053199A (en) * | 2013-03-13 | 2014-09-17 | 中国移动通信集团设计院有限公司 | Method for switching between wireless local area networks, switching management device, and wireless network |
| CN104853378A (en) * | 2014-02-17 | 2015-08-19 | 中国移动通信集团内蒙古有限公司 | Method, device and terminal for detecting access capability of WIFI network |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI102654B (en) * | 1996-02-22 | 1999-01-15 | Nokia Mobile Phones Ltd | Method of replacing base station in a radio extension of the ATM network |
| FI109503B (en) * | 1997-04-15 | 2002-08-15 | Nokia Corp | Prevention of packet loss during handover in a packet-based telecommunications network and handover procedure |
| EP1281289A1 (en) * | 2000-03-23 | 2003-02-05 | Siemens Mobile Communications S.p.A. | Handover procedures in a radio communication system |
-
2002
- 2002-02-10 CN CNB021108528A patent/CN100508474C/en not_active Expired - Fee Related
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| CN101056177B (en) * | 2007-06-01 | 2011-06-29 | 清华大学 | Radio mesh re-authentication method based on the WLAN secure standard WAPI |
| CN101188553B (en) * | 2007-06-22 | 2011-07-20 | 中兴通讯股份有限公司 | Method for notifying home user server to store the gateway address of packet data network |
| CN101374116B (en) * | 2007-08-23 | 2011-05-18 | 华为技术有限公司 | Method and apparatus for implementing on-line business |
| CN101170833B (en) * | 2007-11-30 | 2010-06-09 | 华为技术有限公司 | Method, system and device for cleaning rubbish user tables |
| CN101472306B (en) * | 2007-12-29 | 2012-06-20 | 华为技术有限公司 | Method, system and device for switching between APs |
| WO2009089749A1 (en) * | 2007-12-29 | 2009-07-23 | Huawei Technologies Co., Ltd. | A handover method, apparatus and system between aps |
| CN101730171B (en) * | 2009-05-27 | 2013-01-16 | 中兴通讯股份有限公司 | Switching control method and switching control system |
| WO2011088787A1 (en) * | 2010-01-21 | 2011-07-28 | 华为技术有限公司 | Method and device for handover in access point network |
| WO2012079242A1 (en) * | 2010-12-17 | 2012-06-21 | Siemens Aktiengesellschaft | Method device and system for controlling handoff |
| US9237499B2 (en) | 2010-12-17 | 2016-01-12 | Siemens Aktiengesellschaft | Method device and system for controlling handoff |
| CN102957615A (en) * | 2011-08-17 | 2013-03-06 | 康佳集团股份有限公司 | Switching method of network servers and terminal device |
| CN103686891A (en) * | 2012-09-11 | 2014-03-26 | 华为技术有限公司 | Link switching method, controller, access point (AP) and wireless communication system |
| CN104053199A (en) * | 2013-03-13 | 2014-09-17 | 中国移动通信集团设计院有限公司 | Method for switching between wireless local area networks, switching management device, and wireless network |
| CN104853378A (en) * | 2014-02-17 | 2015-08-19 | 中国移动通信集团内蒙古有限公司 | Method, device and terminal for detecting access capability of WIFI network |
| CN104853378B (en) * | 2014-02-17 | 2019-03-01 | 中国移动通信集团内蒙古有限公司 | A kind of method, apparatus and terminal detecting WIFI network access capability |
| CN105592517A (en) * | 2016-02-17 | 2016-05-18 | 宇龙计算机通信科技(深圳)有限公司 | Network connection processing method, network connection processing device, and network connection processing terminal |
| WO2017181480A1 (en) * | 2016-04-21 | 2017-10-26 | 中兴通讯股份有限公司 | Connecting method and device for network access point |
| CN107306429A (en) * | 2016-04-21 | 2017-10-31 | 中兴通讯股份有限公司 | The connection method of Network Access Point and device |
| WO2018000321A1 (en) * | 2016-06-30 | 2018-01-04 | 华为技术有限公司 | Access point switching method, device and equipment |
| CN112770364A (en) * | 2019-11-05 | 2021-05-07 | 中国科学院声学研究所 | Terminal channel switching method and system of wireless local area network |
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