CN101977419A - Mobile telephone network searching method and mobile telephone - Google Patents
Mobile telephone network searching method and mobile telephone Download PDFInfo
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Abstract
The invention provides a mobile telephone network searching method and a mobile telephone. The network searching method comprises the following steps of: scanning the signal intensity of frequency points; locking the frequency point according to the signal intensity; determining the network that the locked frequency point belongs to; residing the locked frequency point if the network that the locked frequency point belongs to is the target network; if the locked frequency point does not belong to the target network, continuously locking the next frequency point until the resided frequency point belonging to the target network is found or all the frequency points do not belong to the target network; and when the locked frequency point does not belong to the target network, at least using the remained frequency points in the network that the frequency point locked for the first time belongs to as the removed frequency points, wherein the continuously locked frequency point is selected from the removed frequency points and the frequency points other than the locked frequency point so that the time of the mobile telephone from starting up to starting the communication service is shorter.
Description
Technical field
The present invention relates to field of mobile communication, particularly a kind of mobile phone network searching method and mobile phone.
Background technology
At present, use global system for mobile communications (Global System for Mobile; GSM) user is by Subscriber Identity Module (Subscriber Identifcation Module Card; Hereinafter to be referred as SIM card) insert mobile phone after, the user can obtain network services.By SIM card, the user is become the registered user of network, and the various services that enjoy network provides.Therefore, mobile phone all needs to carry out SIM card and looks for net after start, just searches for frequency, then by the resident sub-district to the network that belongs to this SIM card operator of frequency.For in " CN101188835A " Chinese patent literature the method that a kind of mobile phone power-on is looked for net is disclosed at publication number for example.
Fig. 1 is the flow chart that a kind of mobile phone power-on is looked for net in the prior art; After being inserted with the mobile phone power-on of SIM card, comprise the following steps:
Step 11, the signal strength signal intensity of scanning frequency, described frequency is the numbering to fixed frequency;
Step 13, obtain synchronizing information by decoding SCH (synchronizing channel), by the information of FCCH (frequency correction channel) reception correction work frequency, read the system message 3 of this frequency BCCH (Broadcast ControlChannel, Broadcast Control Channel) channel;
Step S14 judges that according to the system message of reading whether described frequency belongs to the network under this SIM card, if then enter step S17, otherwise enters step S15;
Step S15 judges whether frequency is searched for to finish, if search finishes then enters step S18, otherwise enters step S16;
Step S16 locks onto the strongest frequency of signal strength signal intensity in remaining frequency, enters step 13;
Step S17, resident this frequency of mobile phone describedly residently is meant that the system message with this frequency affiliated subdistrict receives, and begins to receive the paging of this sub-district, just can begin to have made a phone call;
Step S18, mobile phone continue to monitor all frequencies, select residently, and mobile phone interface shows no network service.
But, it is to search the strongest frequency earlier that above-mentioned mobile phone is looked for the method for net, judge then whether frequency belongs to the network of this SIM card operator, if not abandoning, search inferior strong frequency again and then judge whether frequency belongs to the network of this SIM card operator up to the frequency that finds the network that belongs to this SIM card operator, like this look for network process long, thereby cause behind the mobile phone power-on longer to the time that can begin Communications service.
Especially, along with the development of wireless mobile applied business, a user has two poor situations of blocking of above SIM simultaneously and also gets more and more, like this in mobile telephone with multiple cards, owing to after a plurality of SIM card are finished sub-district resident, could begin Communications service, so the problems referred to above seem more serious.
Summary of the invention
The technical problem that the present invention solves provides a kind of mobile phone network searching method and mobile phone, makes mobile phone shorter to the time of enabling Communications service after start.
In order to solve the problems of the technologies described above, the invention provides a kind of mobile phone network searching method, comprise step:
Scan the signal strength signal intensity of each frequency;
Basis signal intensity locked frequency point;
Determine the affiliated network of frequency of this locking;
If the network under the frequency of described locking is an objective network, the then resident frequency that should lock; If the frequency of described locking does not belong to objective network, then continue next frequency of locking, until find belong to objective network can resident frequency or all frequencies all do not belong to objective network;
Wherein, at the frequency of locking when not belonging to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency; The frequency that continues locking is to choose the frequency outside the frequency of described eliminating frequency and locked mistake.
Optionally, determine that the network under the frequency of this locking comprises: read first system message of the frequency of described locking, described first system message comprises the information of the described frequency belonging network that reads.
Optionally, described first system message system message 3 that is the GSM network.
Optionally, described objective network is the affiliated network of client's identification card of mobile phone, the standard of the packets of information includes network of described network and the information of operator thereof.
Optionally, all the other frequencies in the frequency belonging network of described locking obtain by following step:
Read second system message of the frequency of described locking, described second system message comprises and the information of the described frequency that reads with the frequency of network.
Optionally, when described frequency in locking does not belong to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general comprise as the step of getting rid of frequency: when the frequency of locking does not for the first time belong to objective network, with all the other frequencies in the frequency belonging network of locking for the first time as getting rid of frequency; During locked frequency point after first time locked frequency point,, all the other frequencies in the frequency belonging network of current locking are increased in the described eliminating frequency if the frequency of current locking does not belong to objective network.
Optionally, described second system message system message 2 that is the GSM network.
Optionally, also comprise:, then keep the system message of BCCH channel, FCCH channel and the SCH channel of the frequency that locks the described first time if the frequency of the described first time of locking does not belong to the affiliated network of described client's identification card;
When can not find the frequency that belongs to objective network, according to the frequency of the resident described locking first time of system message of BCCH channel, FCCH channel and the SCH channel of the frequency of locking first time of described reservation.
Optionally, described mobile phone is that three cards three are treated mobile phone.
A kind of mobile phone comprises: radio-frequency module, and described radio-frequency module is used to scan the signal strength signal intensity of each frequency, also comprises:
Locking module is used to select the strongest frequency of signal strength signal intensity as the frequency that locks for the first time, and basis signal intensity selects frequency to lock from frequency to be locked;
The network judge module is used to judge whether the affiliated network of frequency of described locking is objective network;
Network selection module, the network that is used under the frequency of described locking is an objective network, the then resident frequency that should lock is characterized in that, also comprises:
Frequency is selected module, be used for when the frequency of described locking does not belong to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency, with the frequency outside the frequency of described eliminating frequency and locked mistake as described frequency to be locked.
Optionally, described network judge module comprises:
Read module is used to read first system message of the frequency of described locking, and described first system message comprises the information of the described frequency belonging network that reads;
Judge module is used for judging according to first system message of the frequency of described locking whether the frequency of described locking belongs to objective network.
Optionally, described first system message system message 3 that is the GSM network.
Optionally, described objective network is the affiliated network of client's identification card of mobile phone, the standard of the packets of information includes network of described network and the information of operator thereof.
Optionally, described frequency selects module to comprise:
The frequency point information acquisition module is used for when the frequency of locking does not belong to objective network, then reads second system message of the frequency of the described locking first time at least, and described second system message comprises and the information of the described frequency that reads with the frequency of network;
Get rid of the frequency determination module, all the other frequencies that are used for the frequency belonging network of locking at least for the first time are as getting rid of frequency;
Frequency determination module to be locked is used for the frequency outside the frequency of described eliminating frequency and locked mistake as frequency to be locked.
Optionally, described frequency point information acquisition module is used for reading second system message of the frequency of described current locking when the frequency of current locking does not belong to objective network;
Described eliminating frequency determination module is used for if the frequency of current locking does not belong to objective network, then will be increased in the described eliminating frequency with all the other frequencies of the frequency belonging network of described current locking.
Optionally, described second system message system message 2 that is the GSM network.
Optionally, also comprise urgent resident module: be used for not belonging to described objective network, then keep the system message of BCCH channel, FCCH channel and the SCH channel of the frequency that locks the described first time when the frequency of the described locking first time; When can not find the frequency that belongs to objective network, according to the frequency of the resident described locking first time of system message of BCCH channel, FCCH channel and the SCH channel of the frequency of described first time of the locking of described reservation.
Optionally, described mobile phone is that three cards three are treated mobile phone.
Compared with prior art, the present invention mainly has the following advantages:
, do not abandon immediately when not belonging to objective network at the frequency of locking in the present invention, but all the other frequencies in the frequency belonging network that locks for the first time to the major general are as the eliminating frequency; The frequency that continues locking is to choose the frequency outside the frequency of described eliminating frequency and locked mistake.So just can not lock the frequency that does not belong to this SIM card belonging network, thereby just saved locking, resolution system message and judged the steps such as network at its place, make mobile phone shorter to the time of enabling Communications service after start, accelerated the speed that net is looked in start.
Description of drawings
By the more specifically explanation of the preferred embodiments of the present invention shown in the accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by actual size equal proportion convergent-divergent.
Fig. 1 is the flow chart that a kind of mobile phone power-on is looked for net in the prior art;
Fig. 2 is the flow chart that mobile phone power-on of the present invention is looked for net;
Fig. 3 looks for the flow chart of net one embodiment for mobile phone power-on of the present invention;
Fig. 4 is the structural representation of mobile phone first embodiment of the present invention;
Fig. 5 is the structural representation of mobile phone second embodiment of the present invention.
Embodiment
At the problems referred to above, the inventor thinks through research: it is to search the strongest frequency earlier that existing mobile phone is looked for the method for net, judge then whether frequency belongs to the network of this SIM card operator, if not abandoning, search time strong frequency again, and then judge whether frequency belongs to the network of this SIM card operator up to the frequency that finds the network that belongs to this SIM card operator, like this look for network process long, thereby cause behind the mobile phone power-on longer to the time that can begin Communications service.Especially, along with the development of wireless mobile applied business, it is also more and more that user has the situation of two above SIM card simultaneously, like this in mobile telephone with multiple cards, owing to after a plurality of SIM card are finished sub-district resident, could begin Communications service, so the problems referred to above seem more serious.
At above-mentioned reason, the invention provides a kind of mobile phone network searching method, with reference to figure 2, comprise step:
S1: the signal strength signal intensity that scans each frequency;
S2: basis signal intensity locked frequency point;
S3: the affiliated network of frequency of determining this locking;
S4: if the network under the frequency of described locking is an objective network, the then resident frequency that should lock;
S5: if the frequency of described locking does not belong to objective network, then continue next frequency of locking, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency; The frequency that continues locking is to choose the frequency outside the frequency of described eliminating frequency and locked mistake, until find belong to objective network can resident frequency or all frequencies all do not belong to objective network.
The present invention also provides a kind of mobile phone in addition, comprising:
Radio-frequency module, described radio-frequency module is used to scan the signal strength signal intensity of each frequency;
Locking module is used to select the strongest frequency of signal strength signal intensity as the frequency that locks for the first time, and basis signal intensity selects frequency to lock from frequency to be locked;
The network judge module is used to judge whether the affiliated network of frequency of described locking is objective network;
Network selection module, the network that is used under the frequency of described locking is an objective network, the then resident frequency that should lock;
Frequency is selected module, be used for when the frequency of described locking does not belong to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency, with the frequency outside the frequency of described eliminating frequency and locked mistake as described frequency to be locked.
, do not abandon when not belonging to objective network at the frequency of locking in the present invention, but all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency; The frequency that continues locking is to choose the frequency outside the frequency of described eliminating frequency and locked mistake.So just can not lock the frequency that does not belong to this SIM card belonging network, thereby just saved locking, resolution system message and judged the steps such as network at its place, make mobile phone shorter to the time of enabling Communications service after start, accelerated the speed that net is looked in start.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, specific implementation of the present invention is described in detail below in conjunction with accompanying drawing.
Fig. 3 is the flow chart that mobile phone power-on of the present invention is looked for an embodiment of net.Below in conjunction with Fig. 3 mobile phone power-on network searching method one specific embodiment of the present invention is described.As shown in Figure 2, the mobile phone power-on of present embodiment looks for net to comprise the following steps:
S101: the signal strength signal intensity that scans each frequency;
S103: basis signal intensity locked frequency point;
S105: the affiliated network of frequency of determining this locking;
S107: whether the affiliated network of frequency of judging described locking is objective network, if then enter step S109, not, then enters step S201;
S109: resident frequency that should locking, describedly residently be meant that the system message with this frequency affiliated subdistrict receives, and begin to receive the paging of this sub-district, just can begin to have made a phone call;
S201: obtain all the other frequencies in the frequency belonging network of locking for the first time, and with it as getting rid of frequency;
S202: the frequency that continues to choose the frequency outside the frequency of described eliminating frequency and locked mistake locks, and goes back to step S105 then, until find belong to objective network can resident frequency or all frequencies all do not belong to objective network.
Below above-mentioned steps is elaborated, be that operator is that the GSM network of " moving " is an example with the objective network under this SIM card for convenience of explanation, mobile phone power-on network searching method to first embodiment describes: the frequency that will lock for the first time for convenience of explanation is called first frequency hereinafter, and the frequency of locking is called second frequency for the second time ....
At first the system message to the Broadcast Control Channel (BCCH channel) of GSM network is introduced, the system message of BCCH channel is periodically to transmit, specifically be distributed in the 2nd frame to the 5 frames in each multi-frame, wherein Chuan Shu particular content is the system message (Systeminformation) of a plurality of types of GSM network, and commonly used have system message 1, system message 2, system message 3, a system message 4.Each frame in the described control channel is numbered in regular turn, its sequence number note is made FN, then each multi-frame is numbered (FNDIV 51) (being that FN is divided by 51), the numbering note of each multi-frame in the control channel data in corresponding each cycle is made TC, TC=(FN DIV 51) mod (8) (numbering that is multi-frame is to 8 deliverys), the concrete mapping relations of then all types of system messages are as shown in the table:
| The system message type | |
| System message | |
| 1 | 0 |
| |
1 |
| System message 2bis | 5 |
| System message 2ter | 4 or 5 |
| System message 2quater | 4 or 5 |
| |
2 or 6 |
| System message 4 | 3 or 7 |
| System message 9 | 4 |
| System message 13 | 4 |
Wherein, system message 3 has comprised the standard of affiliated network of this frequency and the information of operator.System message 2 has comprised the carrier frequency of frequency, lane place identification code, the information such as peak power output that allow in the sub-district at frequency place.
Look for the net step to be elaborated to the mobile phone power-on of present embodiment below:
At first, execution in step S101, after the mobile phone power-on energized, radio-frequency module scans the signal strength signal intensity of each frequency.Concrete, the frequency of all permissions of mobile phone for measuring extracts a plurality of measured values on each frequency, for example can extract 5 measured values and average, and calculates the average signal strength of each frequency.
Then, execution in step S103, locked frequency point, for example for the first time be locked as the first the highest frequency of locking signal intensity, just, at first can judge the strongest frequency of signal according to average signal strength, select the strongest frequency of this signal, resolve the synchronizing information of its SCH channel (synchronizing channel) then, and the calibrating frequency information of resolving the FCCH channel, lock the BCCH channel of this first frequency.For example receive the SCH channel to frame synchronization and base station identity code (BSIC) that mobile phone transmits, make the mobile phone and first frequency synchronous,, lock the frequency of this first frequency, make mobile phone lock this first frequency by resolving " frequency correction signal " on the FCCH channel.Described locking comprises the system information that reads FCCH channel and SCH channel.
Then execution in step S105, after the locked frequency point, for example lock first frequency after, read first system message of the frequency of described locking, described first system message comprises the information of the described frequency belonging network that reads.Owing to be the GSM network in the present embodiment, so described first system message system message 3 that is the GSM network, be specially the system message 3 of the frequency that reads this locking, can judge according to described system message 3 whether the frequency of locking is to belong to objective network.Described objective network is the affiliated network of client's identification card of mobile phone, and in other words the standard of the packets of information includes network of described network and the information of operator thereof are exactly to judge whether first frequency belongs to the GSM network of operator for " moving ".
Described system message 3 is a special term specific in the GSM communications protocol, the belonging network information (as the standard of network and the information of operator thereof) that in described system message 3, has comprised frequency, therefore receive the calibrating frequency information of FCCH channel, mobile phone is locked onto on the carrier frequency of frequency, allow the back can judge by the system message 3 that receives the BCCH channel whether this frequency is objective network.
For example be specially: resolving the SCH channel, can obtain first sub-district at the first frequency place according to the base station identity code (BSIC) of SCH channel, by " synchronizing signal " on the SCH channel 0 slot synchronization with this frequency, just can obtain the system message of this sub-district, frequency place afterwards, comprise the system message 3 and the system message 2 of first frequency that sends by the BCCH channel from this time slot.Described system message 3 has just comprised this first frequency, just the information of the network under first sub-district under it.
Then execution in step S107 judges whether the affiliated network of frequency of described locking is objective network, if then enter step S109, otherwise, for example judge that the network under first frequency is the GSM network of " UNICOM ", then enter step S201.
Step S109, the frequency of the resident described locking of mobile phone, for example frequency of resident locking, for example first frequency.
Step 201 reads the frequency of described locking, second system message of first frequency for example, and described second system message comprises and the information of the described frequency that reads with the frequency of network.The system message 2 of GSM network for example, described system message 2 can comprise the carrier frequency (abbreviation carrier frequency) of frequency with the network of the same operator of frequency of locking, the lane place identification code, the information such as peak power output that allow in the sub-district at the frequency place of locking.If for example first frequency belongs to " UNICOM " network, then the system message 2 of first frequency comprised with described first frequency under the carrier frequency of frequency of sub-district of contiguous " UNICOM " network in first sub-district, just with the carrier frequency of first frequency with the frequency of network.Thereby with carrier frequency and described first frequency with the identical frequency of the frequency carrier frequency of network as getting rid of frequency.
During the locked frequency point of present embodiment after locking for the first time, the eliminating frequency of determining during locked frequency point is for the first time got rid of from the frequency that will choose as the eliminating frequency all the time.
In other embodiments, during locked frequency point after locking for the first time,, then all the other frequencies in the frequency belonging network of current locking are increased in this time locked frequency point eliminating frequency before if the frequency of current locking does not belong to objective network.During the locked frequency point after locking for the first time, the frequency that had locked before this time locking is all got rid of from the frequency that will choose as the eliminating frequency with the frequency of network, thereby further improved the speed of looking for net like this.
Can certainly when the locked frequency point after the locking for the first time, the frequency that had locked several times arbitrarily before this time locking all be got rid of from the frequency that will choose as getting rid of frequency with the frequency of network.
Described system message 2 is a special term specific in the GSM communications protocol, has comprised in described system message 2 and positional information and the carrier frequency information of this frequency with the neighbor cell of network.
Step S202: the frequency that continues to choose the frequency outside the frequency of described eliminating frequency and locked mistake locks, and goes back to step S105 then, until find belong to objective network can resident frequency or all frequencies all do not belong to objective network.
In addition, after mobile phone power-on, can judge earlier also whether the frequency of mobile phone EMS memory storage is the frequency of current area, if, then resident this sub-district.
Below in conjunction with Fig. 3 the mobile phone power-on network searching method of the second embodiment of the present invention is described, in a second embodiment, step S101 to S109 is identical with first embodiment, repeats no more, and difference is step S201, and step S201 is in the present embodiment:
After judging whether described first frequency belongs to the network step of this SIM card operator, if not, then keep the system information of BCCH channel, FCCH channel and the SCH channel of described first frequency; When can not find the frequency of the network that belongs to this SIM card operator, according to resident described first frequency of system information of BCCH channel, FCCH channel and the SCH channel of first frequency of described reservation.Owing to just can converse after the mobile phone persistent district, and mobile phone search for can't be resident less than the sub-district of the network that belongs to this card operator always, make mobile phone to converse, the present invention allows mobile phone keep the BCCH channel of first frequency earlier, the system information of FCCH channel and SCH channel, even can not find the network of operator like this, also can be very fast resident to first frequency, thereby also can carry out urgency traffic, owing to receive the BCCH channel of first frequency, the system information of FCCH channel and SCH channel will take long to, when the present invention not be used in the network that can not find operator, go again to search and resolve first frequency, therefore shortened the resident time of urgent call greatly.
Fig. 4 is the structural representation of mobile phone first embodiment of the present invention.Mobile phone as shown in Figure 4, comprise: sim card slot 401, be connected in the baseband processing chip 403 of sim card slot 401, the display 405 that is connected in baseband processing chip 403, keyboard 407, radio-frequency module 409, power supply 511, exterior storage medium 513 and other peripheral hardwares 515 and be connected in the antenna 517 of radio-frequency module 409, wherein, described radio-frequency module 409 is used to scan the signal strength signal intensity of each frequency.
Also comprise: locking module 4051, be used to select the strongest frequency of signal strength signal intensity as the frequency that locks for the first time, basis signal intensity selects frequency to lock from frequency to be locked.
Frequency is selected module 4033, be used for when the frequency of described locking does not belong to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency, with the frequency outside the frequency of described eliminating frequency and locked mistake as described frequency to be locked.
Described in the present embodiment locking module 4051, network judge module 4052, network selection module 4031, frequency select module 4033 all to be arranged in baseband processing chip 403, and described in other embodiments locking module 4051, network judge module 4052, network selection module 4031, frequency select module also 4033 can be produced on separately in other the module or in the equipment certainly.
Optionally, described network judge module 4052 comprises:
Read module 4052a is used to read first system message of the frequency of described locking, and described first system message comprises the information of the described frequency belonging network that reads;
Optionally, described first system message system message 3 that is the GSM network.
Optionally, described objective network is the affiliated network of client's identification card of mobile phone, the standard of the packets of information includes network of described network and the information of operator thereof.
Optionally, described frequency selects module 4033 to comprise:
Frequency point information acquisition module 4033a is used for when the frequency of locking does not belong to objective network, then reads second system message of the frequency of the described locking first time at least, and described second system message comprises and the information of the described frequency that reads with the frequency of network;
Get rid of frequency determination module 4033b, all the other frequencies that are used for the frequency belonging network of locking at least for the first time are as getting rid of frequency;
Optionally, described frequency point information acquisition module 4033a is used for reading second system message of the frequency of described current locking when the frequency of current locking does not belong to objective network;
Described eliminating frequency determination module 4033b is used for if the frequency of current locking does not belong to objective network, then will be increased in the described eliminating frequency with all the other frequencies of the frequency belonging network of described current locking.
That is to say, one preferred embodiment in, locking module 4051 is each when selecting frequency to lock, and all is to select and lock in the frequency outside all the other frequencies of the frequency of locked mistake before and belonging network thereof.
Optionally, described second system message system message 2 that is the GSM network.
Fig. 5 is the structural representation of mobile phone second embodiment of the present invention, as shown in Figure 4, in second embodiment of mobile phone, comprise: sim card slot 401 is connected in the baseband processing chip 403 of sim card slot 401, the display 405 that is connected in baseband processing chip 403, keyboard 407, radio-frequency module 409, power supply 511, exterior storage medium 513 and other peripheral hardwares 515 and is connected in the antenna 517 of radio-frequency module.
The mobile phone of present embodiment also comprises urgent resident module 4036, is used for not belonging to described objective network when the frequency of the described locking first time, then keeps the system message of BCCH channel, FCCH channel and the SCH channel of the frequency that locks the described first time; When can not find the frequency that belongs to objective network, according to the frequency of the resident described locking first time of system message of BCCH channel, FCCH channel and the SCH channel of the frequency of described first time of the locking of described reservation.Described urgent resident module 4036 also can be arranged in baseband processing chip 403.
In the foregoing description, described mobile phone is that three cards three are treated mobile phone.
Above embodiment also can be applied to the mobile phone of single or a plurality of SIM card, looks for the principle of net same as described above.Described in the above-described embodiments cell phone network is the GSM network, and frequency is the frequency in the GSM network.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (18)
1. mobile phone network searching method comprises step:
Scan the signal strength signal intensity of each frequency;
Basis signal intensity locked frequency point;
Determine the affiliated network of frequency of this locking;
If the network under the frequency of described locking is an objective network, the then resident frequency that should lock; If the frequency of described locking does not belong to objective network, then continue next frequency of locking, until find belong to objective network can resident frequency or all frequencies all do not belong to objective network;
It is characterized in that at the frequency of locking when not belonging to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency; The frequency that continues locking is to choose the frequency outside the frequency of described eliminating frequency and locked mistake.
2. mobile phone network searching method according to claim 1, it is characterized in that, the affiliated network of frequency of determining this locking comprises: read first system message of the frequency of described locking, described first system message comprises the information of the described frequency belonging network that reads.
3. mobile phone network searching method according to claim 2 is characterized in that, the system message 3 that described first system message is the GSM network.
4. mobile phone network searching method according to claim 2 is characterized in that, described objective network is the affiliated network of client's identification card of mobile phone, the standard of the packets of information includes network of described network and the information of operator thereof.
5. mobile phone network searching method according to claim 1 is characterized in that, all the other frequencies in the frequency belonging network of described locking obtain by following step:
Read second system message of the frequency of described locking, described second system message comprises and the information of the described frequency that reads with the frequency of network.
6. mobile phone network searching method according to claim 5 is characterized in that, the system message 2 that described second system message is the GSM network.
7. mobile phone network searching method according to claim 1 is characterized in that, described frequency in locking is not when belonging to objective network, and all the other frequencies in the frequency belonging network that locks for the first time to the major general comprise as the step of getting rid of frequency:
When the frequency of locking does not for the first time belong to objective network, with all the other frequencies in the frequency belonging network of locking for the first time as getting rid of frequency;
During locked frequency point after first time locked frequency point,, all the other frequencies in the frequency belonging network of current locking are increased in the described eliminating frequency if the frequency of current locking does not belong to objective network.
8. mobile phone network searching method according to claim 1, it is characterized in that, also comprise:, then keep the system message of BCCH channel, FCCH channel and the SCH channel of the frequency that locks the described first time if the frequency of the described first time of locking does not belong to the affiliated network of described client's identification card;
When can not find the frequency that belongs to objective network, according to the frequency of the resident described locking first time of system message of BCCH channel, FCCH channel and the SCH channel of the frequency of locking first time of described reservation.
9. portable terminal network searching method according to claim 1 is characterized in that, described mobile phone is that three cards three are treated mobile phone.
10. mobile phone comprises: radio-frequency module, and described radio-frequency module is used to scan the signal strength signal intensity of each frequency, it is characterized in that, also comprises:
Locking module is used to select the strongest frequency of signal strength signal intensity as the frequency that locks for the first time, and basis signal intensity selects frequency to lock from frequency to be locked;
The network judge module is used to judge whether the affiliated network of frequency of described locking is objective network;
Network selection module, the network that is used under the frequency of described locking is an objective network, the then resident frequency that should lock;
Frequency is selected module, be used for when the frequency of described locking does not belong to objective network, all the other frequencies in the frequency belonging network that locks for the first time to the major general are as getting rid of frequency, with the frequency outside the frequency of described eliminating frequency and locked mistake as described frequency to be locked.
11. mobile phone according to claim 10 is characterized in that,
Described network judge module comprises:
Read module is used to read first system message of the frequency of described locking, and described first system message comprises the information of the described frequency belonging network that reads;
Judge module is used for judging according to first system message of the frequency of described locking whether the frequency of described locking belongs to objective network.
12. mobile phone according to claim 11 is characterized in that, the system message 3 that described first system message is the GSM network.
13. mobile phone according to claim 12, it is characterized in that, also comprise urgent resident module: be used for not belonging to described objective network, then keep the system message of BCCH channel, FCCH channel and the SCH channel of the frequency that locks the described first time when the frequency of the described locking first time; When can not find the frequency that belongs to objective network, according to the frequency of the resident described locking first time of system message of BCCH channel, FCCH channel and the SCH channel of the frequency of described first time of the locking of described reservation.
14. mobile phone according to claim 11 is characterized in that, described objective network is the affiliated network of client's identification card of mobile phone, the standard of the packets of information includes network of described network and the information of operator thereof.
15. mobile phone according to claim 10 is characterized in that, described frequency selects module to comprise:
The frequency point information acquisition module is used for when the frequency of locking does not belong to objective network, then reads second system message of the frequency of the described locking first time at least, and described second system message comprises and the information of the described frequency that reads with the frequency of network;
Get rid of the frequency determination module, all the other frequencies that are used for the frequency belonging network of locking at least for the first time are as getting rid of frequency;
Frequency determination module to be locked is used for the frequency outside the frequency of described eliminating frequency and locked mistake as frequency to be locked.
16. mobile phone according to claim 15 is characterized in that, described frequency point information acquisition module is used for reading second system message of the frequency of described current locking when the frequency of current locking does not belong to objective network;
Described eliminating frequency determination module is used for if the frequency of current locking does not belong to objective network, then will be increased in the described eliminating frequency with all the other frequencies of the frequency belonging network of described current locking.
17. mobile phone according to claim 15 is characterized in that, the system message 2 that described second system message is the GSM network.
18. mobile phone according to claim 10 is characterized in that, described mobile phone is that three cards three are treated mobile phone.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107094305A (en) * | 2017-04-19 | 2017-08-25 | 广东欧珀移动通信有限公司 | A kind of cut-in method of wireless network, device and user terminal |
| CN107211357A (en) * | 2015-02-12 | 2017-09-26 | 高通股份有限公司 | High efficiency method to perform cell searching in many subscriber identity module equipment |
| CN109089302A (en) * | 2018-09-28 | 2018-12-25 | 努比亚技术有限公司 | Implementation method, device, communication terminal and the readable storage medium storing program for executing of cell searching |
| CN109413750A (en) * | 2018-12-07 | 2019-03-01 | 京信通信系统（中国）有限公司 | A kind of frequency point determines method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581988A (en) * | 2003-08-03 | 2005-02-16 | 中兴通讯股份有限公司 | Method for realing network optimization in mobile communication system |
| US20050075125A1 (en) * | 2002-01-21 | 2005-04-07 | Bada Anna Marina | Method and mobile station to perform the initial cell search in time slotted systems |
| CN101188835A (en) * | 2007-12-07 | 2008-05-28 | 嘉兴闻泰通讯科技有限公司 | Power on and network search method for dual-card and dual-standby mobile phone |
| US20090298497A1 (en) * | 2008-05-30 | 2009-12-03 | Samsung Electronics Co., Ltd. | Multiband mobile terminal and cell search method thereof |
-
2010
- 2010-07-23 CN CN2010102405610A patent/CN101977419B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050075125A1 (en) * | 2002-01-21 | 2005-04-07 | Bada Anna Marina | Method and mobile station to perform the initial cell search in time slotted systems |
| CN1581988A (en) * | 2003-08-03 | 2005-02-16 | 中兴通讯股份有限公司 | Method for realing network optimization in mobile communication system |
| CN101188835A (en) * | 2007-12-07 | 2008-05-28 | 嘉兴闻泰通讯科技有限公司 | Power on and network search method for dual-card and dual-standby mobile phone |
| US20090298497A1 (en) * | 2008-05-30 | 2009-12-03 | Samsung Electronics Co., Ltd. | Multiband mobile terminal and cell search method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107211357A (en) * | 2015-02-12 | 2017-09-26 | 高通股份有限公司 | High efficiency method to perform cell searching in many subscriber identity module equipment |
| CN107094305A (en) * | 2017-04-19 | 2017-08-25 | 广东欧珀移动通信有限公司 | A kind of cut-in method of wireless network, device and user terminal |
| CN109089302A (en) * | 2018-09-28 | 2018-12-25 | 努比亚技术有限公司 | Implementation method, device, communication terminal and the readable storage medium storing program for executing of cell searching |
| CN109089302B (en) * | 2018-09-28 | 2021-09-21 | 努比亚技术有限公司 | Method and device for realizing cell search, communication terminal and readable storage medium |
| CN109413750A (en) * | 2018-12-07 | 2019-03-01 | 京信通信系统（中国）有限公司 | A kind of frequency point determines method and device |
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|---|---|
| CN101977419B (en) | 2012-11-28 |
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