CN104980975B - A kind of wifi switching method of mobile terminal - Google Patents

A kind of wifi switching method of mobile terminal Download PDF

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Publication number
CN104980975B
CN104980975B CN201510358781.6A CN201510358781A CN104980975B CN 104980975 B CN104980975 B CN 104980975B CN 201510358781 A CN201510358781 A CN 201510358781A CN 104980975 B CN104980975 B CN 104980975B
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CN
China
Prior art keywords
switching
wifi hotspot
mobile terminal
wifi
information
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Expired - Fee Related
Application number
CN201510358781.6A
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Chinese (zh)
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CN104980975A (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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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 kind of wifi switching methods of mobile terminal, are specifically implemented according to the following steps: the information of the previous access wifi hotspot of acquisition mobile terminal and the information for being currently accessed wifi hotspot first send it to server database；Then the information of wifi hotspot is established the switching table of wireless access point by server and meter calculates the maximum wifi hotspot of the next switching probability of user and other are possible to the wifi hotspot of switching；Finally according to the wifi hotspot switching probability of calculating and the real-time signal strength of each wifi hotspot monitored, optimal wifi hotspot is selected to switch over.A kind of wifi switching method of 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 relatively fixed, this switching method can effectively shorten the scanning delay of handoff procedure when selecting next access point.

Description

A kind of wifi switching method of mobile terminal
Technical field
The invention belongs to mobile communication technology fields, are related to a kind of wifi switching method of mobile terminal.
Background technique
Wifi (Wireless Fidelity) technology is the Wireless LAN based on 802.11 series standards.In no barrier In the open environment hindered, the communication distance of wifi network generally can achieve 305m；And close in conditional space, it communicates Distance meets people using mobile device in this way, accesses internet checking information and amusement at any time generally in 76-122m or so Deng demand, also preferably get rid of the limitation of conventional physical equipment, to people life bring more conveniences.
WLAN based on 802.11 agreement of IEEE can provide enough bandwidth for radio multimedium application, but It is that wireless aps (Access Point) limited coverage area but will lead to mobile terminal frequent switching between different AP.So Handover management is the important component of mobile management.The main target of handover management is during guaranteeing mobile terminal switching QOS (Quality of Service) demand.Before research shows that the handover delay of WLAN reaches several hundred milliseconds very To the longer time, this is far from satisfying the requirement of real-time of mobile multimedia terminal application, so to reduce handover delay Become the importance of handover management research for the research that is switched fast of target.
Summary of the invention
The object of the present invention is to provide a kind of wifi switching methods of mobile terminal, and it is long to solve existing wifi switching time The problem of.
The technical scheme adopted by the invention is that:
A kind of wifi switching method of mobile terminal, is specifically implemented according to the following steps:
Step 1: initializing and access first wifi hotspot；
Step 2: obtaining the information of the previous access wifi hotspot of mobile terminal and be currently accessed the information of wifi hotspot；
Step 3: the wifi point information that step 2 obtains is sent to server database；
Step 4: the information in step 3 is established the switching table of wireless access point by server；
Step 5: server is maximum according to the switching table of the wireless access point of the step 4 calculating next switching probability of user Wifi hotspot is possible to the wifi hotspot of switching with other；
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 reality for each wifi hotspot that the wifi hotspot switching probability and step 7 calculated according to step 5 monitors When signal strength, select optimal wifi hotspot to switch over；
Step 9: step 8 being accessed into wifi hotspot information and mobile terminal geographic position information is sent to server, is updated The switching table of the wireless access point of server so far completes the wifi switching of mobile terminal.
The features of the present invention also characterized in that:
The information of wifi hotspot in step 2 includes wifi hotspot title, signal strength and hot spot quantity.
Wifi hotspot information server is sent in step 3 to realize by wireless transport module.
The maximum next switching hot spot of switching probability is calculated in step 5 method particularly includes:
In formula (1), count (t, i, j) indicates that network is from current access point AP in time period tiIt is switched to next connect Access point APjSwitching times, count (t, i, k) indicates that network is from current access point AP in time period tiIt is switched to and around owns The switching times of access point.
The password of hot spot is issued mobile terminal in step 6 to realize by wireless transport module, and using the form of encryption Mobile terminal is issued in transmission.
Not only consider the beneficial effects of the present invention are: a kind of wifi switching method of mobile terminal, in handoff procedure current Access-in point information, and consider previous access-in point information, next access point is selected according to historical information.Work as motion of mobile terminals When track is relatively fixed, this switching method can effectively shorten the scanning delay of handoff procedure when selecting next access point； In addition, wifi hotspot information will be currently accessed and after mobile terminal geographic position information is sent to server, the service of timely updating The precision for calculating switching probability can be improved in the switching table of the wireless access point of device, finds optimal switching point, when shortening switching Between.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the wifi switching method of mobile terminal of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in detail.
A kind of wifi switching method of mobile terminal of the present invention, as shown in Figure 1, being specifically implemented according to the following steps:
Step 1: initializing and access first wifi hotspot；
Step 2: it obtains the information of the previous access wifi hotspot of mobile terminal and is currently accessed the information of wifi hotspot, The information of wifi hotspot includes wifi hotspot title, signal strength and hot spot quantity；
Step 3: the wifi hotspot information that step 2 obtains is sent to server database by wireless transport module；
Step 4: the information in step 3 is established the switching table of wireless access point by server；
Step 5: server is maximum according to the switching table of the wireless access point of the step 4 calculating next switching probability of user Wifi hotspot is possible to the wifi hotspot of switching with other；
Method particularly includes:
In formula (1), count (t, i, j) indicates that network is from current access point AP in time period tiIt is switched to next connect Access point APjSwitching times, count (t, i, k) indicates that network is from current access point AP in time period tiIt is switched to and around owns The switching times of access point；
Step 6: the password of the wifi hotspot calculated in step 5 is issued mobile terminal by server；
The password of hot spot is issued mobile terminal to realize by wireless transport module, and is issued in the form of encryption Mobile terminal；
Step 7: the real-time signal strength of wifi hotspot in mobile terminal monitoring step 6；
Step 8: the reality for each wifi hotspot that the wifi hotspot switching probability and step 7 calculated according to step 5 monitors When signal strength, select optimal wifi hotspot to switch over；
Step 9: step 8 being accessed into wifi hotspot information and mobile terminal geographic position information is sent to server, is updated The switching table of the wireless access point of server so far completes the wifi switching of mobile terminal.
A kind of wifi switching method of mobile terminal not only considers current access point information in handoff procedure, and before considering One access-in point information selects next access point according to historical information.When motion of mobile terminals track is relatively fixed, Ben Qie The scanning delay of handoff procedure can be effectively shortened when selecting next access point by changing method；In addition, wifi will be currently accessed After hot information and mobile terminal geographic position information are sent to server, the switching of the wireless access point for the server that timely updates The precision for calculating switching probability can be improved in table, finds optimal switching point, shortens switching time.

Claims (4)

1. a kind of wifi switching method of mobile terminal, which is characterized in that be specifically implemented according to the following steps:
Step 1: initializing and access first wifi hotspot；
Step 2: obtaining the information of the previous access wifi hotspot of mobile terminal and be currently accessed the information of wifi hotspot；
Step 3: the wifi hotspot information that step 2 obtains is sent to server database；
Step 4: server establishes the switching table of wireless access point according to the information in step 3；
Step 5: server calculates the maximum wifi of the next switching probability of user according to the switching table of the wireless access point of step 4 Hot spot is possible to the wifi hotspot of switching with other；Calculate the maximum next switching hot spot of switching probability method particularly includes:
In formula (1), count (t, i, j) indicates that network is from current access point AP in time period tiIt is switched to next access point APjSwitching times, count (t, i, k) indicates that network is from current access point AP in time period tiIt is switched to all accesses around The switching times of point；
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 letter for each wifi hotspot that the wifi hotspot switching probability and step 7 calculated according to step 5 monitors Number intensity, selects optimal wifi hotspot to switch over；
Step 9: step 8 being accessed into wifi hotspot information and mobile terminal geographic position information is sent to server, more new demand servicing The switching table of the wireless access point of device so far completes the wifi switching of mobile terminal.
2. a kind of wifi switching method of mobile terminal according to claim 1, which is characterized in that in the step 2 The information of wifi hotspot includes wifi hotspot title, signal strength and hot spot quantity.
3. a kind of wifi switching method of mobile terminal according to claim 1, which is characterized in that will in the step 3 Wifi hotspot information is sent to server and is realized by wireless transport module.
4. a kind of wifi switching method of mobile terminal according to claim 1, which is characterized in that will in the step 6 The password of hot spot is issued mobile terminal and is realized by wireless transport module, and issues mobile terminal in the form of encryption.
CN201510358781.6A 2015-06-25 2015-06-25 A kind of wifi switching method of mobile terminal Expired - Fee Related CN104980975B (en)

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CN105491642B (en) * 2015-11-25 2019-09-10 小米科技有限责任公司 The method and apparatus of network connection
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
CN105825555B (en) * 2016-03-14 2019-05-17 谷振宇 Attendance management method and system based on Wifi positioning
CN107306291B (en) * 2016-04-22 2021-04-06 中兴通讯股份有限公司 Terminal operation method and device
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
CN108076464B (en) * 2017-12-13 2021-03-19 上海连尚网络科技有限公司 WiFi hotspot connection guiding method, device and medium for terminal
CN108337707B (en) * 2018-04-17 2020-10-02 Oppo广东移动通信有限公司 Wireless network switching method, mobile terminal and storage medium
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
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
WO2021072772A1 (en) * 2019-10-18 2021-04-22 深圳市欢太科技有限公司 Wireless communication method and apparatus, electronic device and storage medium
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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