CN102769896B - Geographical position identification method of mobile terminal - Google Patents
Geographical position identification method of mobile terminal Download PDFInfo
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- CN102769896B CN102769896B CN201210269167.9A CN201210269167A CN102769896B CN 102769896 B CN102769896 B CN 102769896B CN 201210269167 A CN201210269167 A CN 201210269167A CN 102769896 B CN102769896 B CN 102769896B
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- mobile terminal
- geographical position
- identification code
- pilot tone
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Abstract
The invention discloses a geographical position identification method of a mobile terminal. The geographical position identification method of the mobile terminal comprises the steps of: S1, searching the strongest pilot frequency message by the mobile terminal, and obtaining a system identification code, and S2, identifying the geographical position at which the mobile terminal is according to the system identification code. According to the method disclosed by the invention, active and rapid geographical position identification of the mobile terminal is achieved, and a time zone is synchronized, thereby achieving rapid registering of a network according to related network information corresponding to the geographical position.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of mobile terminal geographic location recognition methods.
Background technology
Mobile terminal is leaving this area or this country, and can continue to use in another arrived area or country, namely this process is roamed.Roaming can only be compatible and between the domestic city of having networked or signed between the area of bilateral roaming agreement or country and carry out at network formats, mobile terminal, by after the network that re-registers location or country and contracted, can use the service that this Virtual network operator provides.
In the prior art, mobile terminal can be attempted registering in the all-network that can access at it after arriving another area or country, owing to may there is not signing situation in the all-network that it can access, namely occurs the unsuccessful situation of registration.Like this, waste undoubtedly and be successfully registered to new network and the time using it to serve.In addition, the new network's coverage area that mobile terminal arrives and before it network's coverage area at place may there is the time difference, also there is not mobile terminal time zone update mechanism initiatively at present.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: provide a kind of and can save by the mechanism in the initiative recognition geographical position of mobile terminal the mobile terminal geographic location recognition methods that it logs in the time of also registered network.
(2) technical scheme
For solving the problem, the invention provides a kind of mobile terminal geographic location recognition methods, comprising step:
S1. the strongest pilot tone message of mobile terminal to search, and obtain systematic identification code;
S2. the geographical position at mobile terminal place according to described systematic identification code identification.
Preferably, step S1 comprises further:
S1.1 acquisition for mobile terminal can use frequency, and the strongest pilot tone message of search;
S1.2 demodulates Sync Channel Message from described pilot tone message;
S1.3 obtains described systematic identification code from described Sync Channel Message.
Preferably, in step s 2, by by described systematic identification code comprise the geographical position that part or all of number and ownership place question blank contrast to identify described mobile terminal place, the list in the geographical position of the part or all of number that described ownership place question blank comprises for described systematic identification code and correspondence thereof.
Preferably, the information of the network that each geographical position covers also is comprised in described ownership place question blank.
Preferably, described ownership place question blank is stored in described mobile terminal.
Preferably, also step is comprised in step s 2: determine the time zone at the current place of described mobile terminal according to the positional information comprised in described Sync Channel Message and point out renewal.
Preferably, described mobile terminal is the single mode mobile terminal being operated in cdma network, or comprises the multi-module mobile terminal of cdma network for job network.
Preferably, the prominent pilot tone message of the strongest described pilot tone message received by described mobile terminal position.
(3) beneficial effect
Method of the present invention can realize mobile terminal initiatively and fast identification of geographic location, and synchronous time zone, thus registered network rapidly can be realized by the related network information corresponding to this geographical position.
Accompanying drawing explanation
Fig. 1 is the mobile terminal geographic location recognition methods flow chart according to one embodiment of the present invention.
Embodiment
The mobile terminal geographic location recognition methods that the present invention proposes, is described with reference to the accompanying drawings as follows.
Method of the present invention is especially applied in the single mode mobile terminal being operated in cdma network, or job network comprises on the multi-module mobile terminal of cdma network.As shown in Figure 1, the mobile terminal geographic location recognition methods according to one embodiment of the present invention comprises step:
S1. the strongest pilot tone message of mobile terminal to search, and obtain systematic identification code (SID).Particularly, this step comprises further:
This acquisition for mobile terminal of S1.1 can use frequency, and the strongest pilot tone message of search, at this, the prominent pilot tone message of this strongest pilot tone message received by mobile terminal position.Mobile terminal leave from this area or this country arrive another area or national time, if be in off-mode, then powering up in start process, starting to obtain available frequency; If be in open state, then first by losing the signal of former network, obtain available frequency more afterwards.
S1.2 demodulates CDMA synchronizing channel (F-SYNCH) message from this strongest pilot tone message.In a cdma network, synchronizing channel provides crucial time synchronized data for travelling carriage.F-SYNCH contains travelling carriage alignment time necessary information, the information simultaneously also containing network air interface correction, system data, paging channel data transfer rate.During connection of mobile terminal into network, current short code state is obtained by pilot channel, but the information such as by synchronizing channel, it must obtain that the pseudo random code (PN) of base station is biased, long PN state, system time and SID and NID (NID), synchronous for what realize with system.
S1.3 obtains SID from this CDMAF-SYNCH message.
S2. mobile terminal identifies the geographical position at mobile terminal place according to SID.
SID number is the number identifying a mobile service local network in CDMA/AMPS cellular mobile communications networks uniquely.It is made up of country identification bit group and local system bit group two parts, comprises 15 bits altogether.In this step, by the part or all of number comprised in SID and ownership place question blank are contrasted the geographical position identifying mobile terminal place.The list in the geographical position of the part or all of number that this ownership place question blank comprises for lane place identification code and correspondence thereof, and ownership place question blank stores in the terminal.In addition, also comprise the network information covering corresponding geographical position in this list, especially the information of subscription network, thus mobile terminal can be registered and be registered to objective network, shortens the time of registered network targetedly.
In addition, in step s 2, mobile terminal also can point out user to upgrade according to the time zone at the current place of positional information determination mobile terminal comprised in this F-SYNCH message.
Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (5)
1. the recognition methods of mobile terminal geographic location, is characterized in that, comprises step:
S1. the strongest pilot tone message of mobile terminal to search, and obtain systematic identification code;
S2. the geographical position at mobile terminal place according to described systematic identification code identification;
Described step S1 comprises further:
S1.1 acquisition for mobile terminal can use frequency, and the strongest pilot tone message of search;
S1.2 demodulates Sync Channel Message from described pilot tone message;
S1.3 obtains described systematic identification code from described Sync Channel Message;
In step s 2, by by described systematic identification code comprise the geographical position that part or all of number and ownership place question blank contrast to identify described mobile terminal place, the list in the geographical position of the part or all of number that described ownership place question blank comprises for described systematic identification code and correspondence thereof;
Also comprise step in step s 2: determine the time zone at the current place of described mobile terminal according to the positional information comprised in described Sync Channel Message and point out renewal.
2. the method for claim 1, is characterized in that, also comprises the information of the network that each geographical position covers in described ownership place question blank.
3. the method for claim 1, is characterized in that, described ownership place question blank is stored in described mobile terminal.
4. the method as described in any one of claim 1-3, is characterized in that, described mobile terminal is the single mode mobile terminal being operated in cdma network, or comprises the multi-module mobile terminal of cdma network for job network.
5. method as claimed in claim 4, is characterized in that, the prominent pilot tone message of the strongest described pilot tone message received by described mobile terminal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269167.9A CN102769896B (en) | 2012-07-30 | 2012-07-30 | Geographical position identification method of mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210269167.9A CN102769896B (en) | 2012-07-30 | 2012-07-30 | Geographical position identification method of mobile terminal |
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| CN102769896A CN102769896A (en) | 2012-11-07 |
| CN102769896B true CN102769896B (en) | 2015-07-22 |
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| CN201210269167.9A Active CN102769896B (en) | 2012-07-30 | 2012-07-30 | Geographical position identification method of mobile terminal |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104080078B (en) * | 2013-03-26 | 2019-05-28 | 百度在线网络技术（北京）有限公司 | Base station positioning method and equipment |
| CN105472704A (en) * | 2015-12-31 | 2016-04-06 | 深圳市思享云创新技术有限公司 | Network searching method and device of mobile terminal |
| CN105848103A (en) * | 2016-03-22 | 2016-08-10 | 努比亚技术有限公司 | Emergency calling method and terminal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633823A (en) * | 2002-01-10 | 2005-06-29 | 高通股份有限公司 | Method and apparatus for efficient selection and acquisition of a wireless communications system |
| CN101146364A (en) * | 2005-05-17 | 2008-03-19 | 华为技术有限公司 | A roaming restriction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080027564A (en) * | 2006-09-25 | 2008-03-28 | 삼성전자주식회사 | Mobile communication terminal for providing position information and method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633823A (en) * | 2002-01-10 | 2005-06-29 | 高通股份有限公司 | Method and apparatus for efficient selection and acquisition of a wireless communications system |
| CN101146364A (en) * | 2005-05-17 | 2008-03-19 | 华为技术有限公司 | A roaming restriction method |
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