CN104980975A - Mobile terminal wifi switching method - Google Patents

Mobile terminal wifi switching method Download PDF

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Publication number
CN104980975A
CN104980975A CN201510358781.6A CN201510358781A CN104980975A CN 104980975 A CN104980975 A CN 104980975A CN 201510358781 A CN201510358781 A CN 201510358781A CN 104980975 A CN104980975 A CN 104980975A
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CN
China
Prior art keywords
mobile terminal
wifi hotspot
wifi
switching
information
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Granted
Application number
CN201510358781.6A
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Chinese (zh)
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CN104980975B (en
Inventor
邢毓华
吴培希
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Xian University of Technology
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Xian University of Technology
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Priority to CN201510358781.6A priority Critical patent/CN104980975B/en
Publication of CN104980975A publication Critical patent/CN104980975A/en
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Publication of CN104980975B publication Critical patent/CN104980975B/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H04W36/008375—Determination of triggering parameters for hand-off based on historical data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]

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

Abstract

The invention discloses a mobile terminal wifi switching method. The method comprises the steps that the information of an access wifi hotspot before a mobile terminal and the information of a current access wifi hotspot are acquired and sent to a server database; the server establishes a wireless access point switching table according to the wifi hotspot information, and calculates user's next wifi hotspot with the largest switching probability and other possible switching wifi hotspots; and finally, according to the calculated wifi hotspot switching probability and monitored real-time signal strength of each wifi hotspot, an optimal wifi hotspot is selected for switching. According to the mobile terminal wifi switching method, in a switching process, the information of the current access point and the information of a previous access point are considered; based on historical information, a next access point is selected; and if the moving trajectory of the mobile terminal is fixed, the scan time delay of the switching process can be effectively shortened when a next access point is selected according to the switching method.

Description

A kind of wifi changing method of mobile terminal
Technical field
The invention belongs to mobile communication technology field, relate to a kind of wifi changing method of mobile terminal.
Background technology
Wifi (Wireless Fidelity) technology is the WLAN based on 802.11 series standards.In clog-free open environment, the communication distance of wifi network generally can reach 305m; And close in conditional space, communication distance, generally at about 76-122m, meets people like this and uses mobile device, the demand of accessing Internet Query Information and amusement etc. at any time, also better broken away from the restriction of conventional physical equipment, more convenient bring to people's life.
WLAN (wireless local area network) based on IEEE 802.11 agreement can provide enough bandwidth for radio multimedium application, but the limited coverage of wireless aps (Access Point) but can cause mobile terminal frequently to switch between different AP.So handover management is the important component part of mobile management.The main target of handover management ensures QOS (the Quality of Service) demand during mobile terminal switching.Research before shows that the handover delay of WLAN (wireless local area network) reaches the hundreds of millisecond even longer time, this can not meet the requirement of real-time of mobile multimedia terminal application far away, so become with the quick switching research that to reduce handover delay be target the importance that handover management studies.
Summary of the invention
The object of this invention is to provide a kind of wifi changing method of mobile terminal, solve the problem of existing wifi length switching time.
The technical solution adopted in the present invention is:
A wifi changing method for mobile terminal, specifically implement according to following steps:
Step 1: initialization also accesses first wifi hotspot;
Step 2: obtain the information of mobile terminal previous access wifi hotspot and the information of current access wifi hotspot;
Step 3: wifi dot information step 2 obtained sends to server database;
Step 4: the information in step 3 is set up the switching table of WAP (wireless access point) by server;
Step 5: server calculates the maximum wifi hotspot of the next switching probability of user and other wifi hotspot likely switched according to the switching table of the WAP (wireless access point) of step 4;
Step 6: the password of the wifi hotspot calculated in step 5 is issued mobile terminal by server;
Step 7: the real-time signal strength of wifi hotspot in mobile terminal monitoring step 6;
Step 8: the real-time signal strength of each wifi hotspot that the wifi hotspot switching probability calculated according to step 5 and step 7 monitor, selects optimum wifi hotspot to switch;
Step 9: step 8 is accessed wifi hotspot information and mobile terminal geographic position information sends to server, the switching table of the WAP (wireless access point) of update server, the wifi so far completing mobile terminal switches.
Feature of the present invention is also:
The information of the wifi hotspot in step 2 comprises wifi hotspot title, signal strength signal intensity and focus quantity.
Server is sent to be realized by wireless transport module wifi hotspot information in step 3.
The concrete grammar calculating the maximum next one switching focus of switching probability in step 5 is:
P i j = c o u n t ( t , i , j ) / Σ k , i = 1 n c o u n t ( t , i , k ) - - - ( 1 )
In formula (1), count (t, i, j) represents that network is from current access point AP in time period t ibe switched to next access point AP jswitching times, count (t, i, k) represent in time period t network from current access point AP ibe switched to the switching times of all access points around.
In step 6, the password of focus is issued mobile terminal to be realized by wireless transport module, and adopt the form of encryption to issue mobile terminal.
The invention has the beneficial effects as follows: a kind of wifi changing method of mobile terminal, not only consider current access point information in handoff procedure, and consider previous access-in point information, select next access point according to historical information.When motion of mobile terminals track is comparatively fixed, this changing method effectively can shorten the scanning delay of handoff procedure when selecting next access point; In addition, after current access wifi hotspot information and mobile terminal geographic position information are sent to server, the switching table of the WAP (wireless access point) of the server that upgrades in time, can improve the precision calculating switching probability, find optimal switching point, shortens switching time.
Accompanying drawing explanation
Fig. 1 is the flow chart of the wifi changing method of a kind of mobile terminal of the present invention.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is described in detail.
The wifi changing method of a kind of mobile terminal of the present invention, as shown in Figure 1, specifically implement according to following steps:
Step 1: initialization also accesses first wifi hotspot;
Step 2: obtain the information of mobile terminal previous access wifi hotspot and the information of current access wifi hotspot, the information of wifi hotspot comprises wifi hotspot title, signal strength signal intensity and focus quantity;
Step 3: wifi hotspot information step 2 obtained sends to server database by wireless transport module;
Step 4: the information in step 3 is set up the switching table of WAP (wireless access point) by server;
Step 5: server calculates the maximum wifi hotspot of the next switching probability of user and other wifi hotspot likely switched according to the switching table of the WAP (wireless access point) of step 4;
Concrete grammar is:
P i j = c o u n t ( t , i , j ) / Σ k , i = 1 n c o u n t ( t , i , k ) - - - ( 1 )
In formula (1), count (t, i, j) represents that network is from current access point AP in time period t ibe switched to next access point AP jswitching times, count (t, i, k) represent in time period t network from current access point AP ibe switched to the switching times of all access points around;
Step 6: the password of the wifi hotspot calculated in step 5 is issued mobile terminal by server;
The password of focus is issued mobile terminal realized by wireless transport module, and adopt the form of encryption to issue mobile terminal;
Step 7: the real-time signal strength of wifi hotspot in mobile terminal monitoring step 6;
Step 8: the real-time signal strength of each wifi hotspot that the wifi hotspot switching probability calculated according to step 5 and step 7 monitor, selects optimum wifi hotspot to switch;
Step 9: step 8 is accessed wifi hotspot information and mobile terminal geographic position information sends to server, the switching table of the WAP (wireless access point) of update server, the wifi so far completing mobile terminal switches.
A wifi changing method for mobile terminal, not only considers current access point information in handoff procedure, and considers previous access-in point information, selects next access point according to historical information.When motion of mobile terminals track is comparatively fixed, this changing method effectively can shorten the scanning delay of handoff procedure when selecting next access point; In addition, after current access wifi hotspot information and mobile terminal geographic position information are sent to server, the switching table of the WAP (wireless access point) of the server that upgrades in time, can improve the precision calculating switching probability, find optimal switching point, shortens switching time.

Claims (5)

1. a wifi changing method for mobile terminal, is characterized in that, specifically implements according to following steps:
Step 1: initialization also accesses first wifi hotspot;
Step 2: obtain the information of mobile terminal previous access wifi hotspot and the information of current access wifi hotspot;
Step 3: wifi hotspot information step 2 obtained sends to server database;
Step 4: server sets up the switching table of WAP (wireless access point) according to the information in step 3;
Step 5: server calculates the maximum wifi hotspot of the next switching probability of user and other wifi hotspot likely switched according to the switching table of the WAP (wireless access point) of step 4;
Step 6: the password of the wifi hotspot calculated in step 5 is issued mobile terminal by server;
Step 7: the real-time signal strength of wifi hotspot in mobile terminal monitoring step 6;
Step 8: the real-time signal strength of each wifi hotspot that the wifi hotspot switching probability calculated according to step 5 and step 7 monitor, selects optimum wifi hotspot to switch;
Step 9: step 8 is accessed wifi hotspot information and mobile terminal geographic position information sends to server, the switching table of the WAP (wireless access point) of update server, the wifi so far completing mobile terminal switches.
2. the wifi changing method of a kind of mobile terminal according to claim 1, is characterized in that, the information of the wifi hotspot in described step 2 comprises wifi hotspot title, signal strength signal intensity and focus quantity.
3. the wifi changing method of a kind of mobile terminal according to claim 1, is characterized in that, sends to server to be realized by wireless transport module wifi hotspot information in described step 3.
4. the wifi changing method of a kind of mobile terminal according to claim 1, is characterized in that, the concrete grammar calculating the maximum next one switching focus of switching probability in described step 5 is:
P i j = c o u n t ( t , i , j ) / Σ k , i = 1 n c o u n t ( t , i , k ) - - - ( 1 )
In formula (1), count (t, i, j) represents that network is from current access point AP in time period t ibe switched to next access point AP jswitching times, count (t, i, k) represent in time period t network from current access point AP ibe switched to the switching times of all access points around.
5. the wifi changing method of a kind of mobile terminal according to claim 1, is characterized in that, in described step 6, the password of focus is issued mobile terminal and is realized by wireless transport module, and adopts the form of encryption to issue mobile terminal.
CN201510358781.6A 2015-06-25 2015-06-25 A kind of wifi switching method of mobile terminal Active CN104980975B (en)

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Publication number Priority date Publication date Assignee Title
CN105491642A (en) * 2015-11-25 2016-04-13 小米科技有限责任公司 Network connection method and device
CN105825555A (en) * 2016-03-14 2016-08-03 谷振宇 WiFi positioning based attendance management method and system
WO2017152433A1 (en) * 2016-03-11 2017-09-14 上海连尚网络科技有限公司 Method and device for handing over user equipment among wireless access points
CN107306291A (en) * 2016-04-22 2017-10-31 中兴通讯股份有限公司 A kind of terminal operation method and device
CN107509172A (en) * 2017-09-12 2017-12-22 中广热点云科技有限公司 A kind of free WIFI management methods in market and system
CN107992041A (en) * 2017-12-06 2018-05-04 浙江大华技术股份有限公司 A kind of AGV trolleies means of communication
CN108076464A (en) * 2017-12-13 2018-05-25 上海连尚网络科技有限公司 A kind of Wi-Fi hotspot connection bootstrap technique, equipment and medium in terminal
CN108337707A (en) * 2018-04-17 2018-07-27 Oppo广东移动通信有限公司 A kind of switching method of wireless network, mobile terminal and storage medium
CN108668237A (en) * 2018-06-29 2018-10-16 连尚（新昌）网络科技有限公司 A kind of method and apparatus of wireless connection for keeping user equipment
CN110166936A (en) * 2019-05-24 2019-08-23 浙江立镖机器人有限公司 Wireless communications method, device and server
WO2020097852A1 (en) * 2018-11-15 2020-05-22 深圳市欢太科技有限公司 Wireless connection method, apparatus, storage medium and electronic device
CN113873609A (en) * 2021-09-24 2021-12-31 新华三技术有限公司成都分公司 Method for guiding client to access AP and AC
CN114556872A (en) * 2019-10-18 2022-05-27 深圳市欢太科技有限公司 Wireless communication method, wireless communication apparatus, electronic device, and storage medium

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CN102098706A (en) * 2011-03-18 2011-06-15 福建星网锐捷网络有限公司 Channel managing method and access point
CN103458461A (en) * 2012-05-30 2013-12-18 华为技术有限公司 Wireless local area network load balancing method and wireless local area network load balancing device
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Cited By (22)

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CN105491642A (en) * 2015-11-25 2016-04-13 小米科技有限责任公司 Network connection method and device
WO2017152433A1 (en) * 2016-03-11 2017-09-14 上海连尚网络科技有限公司 Method and device for handing over user equipment among wireless access points
CN107182098B (en) * 2016-03-11 2020-11-03 上海连尚网络科技有限公司 Method and equipment for realizing switching of user equipment between wireless access points
US10728813B2 (en) 2016-03-11 2020-07-28 Shanghai Lianshang Network Technology Co., Ltd. Method and device for handing over user equipment among wireless access points
CN105825555B (en) * 2016-03-14 2019-05-17 谷振宇 Attendance management method and system based on Wifi positioning
CN105825555A (en) * 2016-03-14 2016-08-03 谷振宇 WiFi positioning based attendance management method and system
CN107306291A (en) * 2016-04-22 2017-10-31 中兴通讯股份有限公司 A kind of terminal operation method and device
CN107509172A (en) * 2017-09-12 2017-12-22 中广热点云科技有限公司 A kind of free WIFI management methods in market and system
CN107509172B (en) * 2017-09-12 2020-09-08 中广热点云科技有限公司 Market free WIFI management method and system
CN107992041A (en) * 2017-12-06 2018-05-04 浙江大华技术股份有限公司 A kind of AGV trolleies means of communication
CN108076464A (en) * 2017-12-13 2018-05-25 上海连尚网络科技有限公司 A kind of Wi-Fi hotspot connection bootstrap technique, equipment and medium in terminal
CN108337707A (en) * 2018-04-17 2018-07-27 Oppo广东移动通信有限公司 A kind of switching method of wireless network, mobile terminal and storage medium
CN108668237A (en) * 2018-06-29 2018-10-16 连尚（新昌）网络科技有限公司 A kind of method and apparatus of wireless connection for keeping user equipment
CN108668237B (en) * 2018-06-29 2020-07-31 连尚（新昌）网络科技有限公司 Method and equipment for maintaining wireless connection of user equipment
WO2020097852A1 (en) * 2018-11-15 2020-05-22 深圳市欢太科技有限公司 Wireless connection method, apparatus, storage medium and electronic device
CN112806059A (en) * 2018-11-15 2021-05-14 深圳市欢太科技有限公司 Wireless connection method, device, storage medium and electronic equipment
CN112806059B (en) * 2018-11-15 2022-06-14 深圳市欢太科技有限公司 Wireless connection method, device, storage medium and electronic equipment
CN110166936A (en) * 2019-05-24 2019-08-23 浙江立镖机器人有限公司 Wireless communications method, device and server
CN114556872A (en) * 2019-10-18 2022-05-27 深圳市欢太科技有限公司 Wireless communication method, wireless communication apparatus, electronic device, and storage medium
CN114556872B (en) * 2019-10-18 2023-10-03 深圳市欢太科技有限公司 Wireless communication method, device, electronic equipment and storage medium
CN113873609A (en) * 2021-09-24 2021-12-31 新华三技术有限公司成都分公司 Method for guiding client to access AP and AC
CN113873609B (en) * 2021-09-24 2023-11-03 新华三技术有限公司成都分公司 Method and AC for guiding client to access AP

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