CN101895969A - Mobile terminal and network searching method thereof - Google Patents
Mobile terminal and network searching method thereof Download PDFInfo
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- CN101895969A CN101895969A CN 201010245333 CN201010245333A CN101895969A CN 101895969 A CN101895969 A CN 101895969A CN 201010245333 CN201010245333 CN 201010245333 CN 201010245333 A CN201010245333 A CN 201010245333A CN 101895969 A CN101895969 A CN 101895969A
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Abstract
The invention discloses a mobile terminal and a network searching method thereof. The network searching method for the mobile terminal comprises the following steps of: scanning signal strength of each frequency point; receiving physical frequency information and system information of a first frequency point according to the signal intensity, wherein the system information comprises a plurality of system messages; and at the intervals of the plurality of system messages, receiving physical frequency information and system information of at least another one frequency point according to the signal intensity. The network searching method shortens the network searching time and improves the network searching speed.
Description
Technical field
The present invention relates to moving communicating field, particularly a kind of portable terminal and network searching method thereof.
Background technology
Along with the fast development of mobile communication technology, global system for mobile communications (GSM, Global Systemfor Mobile communication) network has obtained using widely.The GSM network user is by inserting client identification module card (the Subscriber Identification Module Card of portable terminal (as mobile phone), hereinafter to be referred as SIM card) carry out identification, pass through SIM card, the user is become the registered user of network, thus the various services that enjoy network provides.Portable terminal need be looked for network process after start, to search the GSM network of the operator under this SIM card.
Disclose the method that a kind of mobile phone power-on is looked for net at publication number in " CN101188835A " Chinese patent literature, 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 S11, the signal strength signal intensity of scanning frequency, described frequency is the numbering to fixed frequency;
Step S12, the frequency that locking signal intensity is the highest;
Step S13, obtain synchronizing information by decoding SCH (synchronizing channel), receive the information of correction work frequency by FCCH (frequency correction channel), read the system message 3 (System Information 3) of this frequency BCCH (Broadcast ControlChannel, Broadcast Control Channel) channel;
Step S14 judges according to the system message of reading whether described frequency belongs to the network of this SIM card operator, 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 S13;
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, receive the physical frequencies information (being SCH data and FCCH data) and the system information (as system message 3) of this frequency, and carry out synchronously and judge that whether this frequency is the carrier network under this SIM card, if not then abandoning, search time strong frequency and then judgement frequency again.The network process of looking for like this is that network process is looked in the serial of a plurality of frequencies, and the duration is long, thereby causes behind the mobile phone power-on longer to the time that can begin Communications service.
In addition, the GSM network user may have a plurality of numbers, therefore a large amount of portable terminals is supported the SIM card more than 2 or 2 simultaneously, each SIM card is shared same GSM communication module, standby when realizing plurality of SIM cards by time division multiplexing, promptly the same time only has a SIM card to be connected to the GSM network by the GSM communication module.For this type of portable terminal, because a plurality of SIM card are in when start, each SIM card all will be carried out the network process of looking for of above-mentioned serial, and the network process of looking between a plurality of SIM card also is serial, makes that the time to find network behind the mobile terminal-opening is long.
Summary of the invention
The purpose of this invention is to provide a kind of portable terminal and network searching method thereof, shorten time to find network, improve and look for net spee.
For addressing the above problem, the invention provides a kind of network searching method of portable terminal, comprising:
Scan the signal strength signal intensity of each frequency;
Basis signal intensity receives the physical frequencies information and the system information of first frequency, and described system information comprises the system message of a plurality of periodic broadcasts;
In the time interval of a plurality of system messages that receive described first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.
Optionally, described physical frequencies information be the GSM network frequency correction channel data and sync channel data.
Optionally, a plurality of system messages of described a plurality of system message Broadcast Control Channel transmission that is the GSM network.
Optionally, the described basis signal intensity physical frequencies information and the system information that receive other at least one frequencies comprises: received signal intensity is only second to the physical frequencies information and the system information of second frequency of described first frequency.
Optionally, the system information of described second frequency comprises the system message of a plurality of periodic broadcasts, the network searching method of described portable terminal also was included in the time interval of a plurality of system messages that receive described second frequency, and received signal intensity is only second to the physical frequencies information and the system information of the 3rd frequency of described second frequency.
Optionally, the system information of described the 3rd frequency comprises a plurality of system messages, the network searching method of described portable terminal also was included in the time interval of a plurality of system messages that receive described the 3rd frequency, received the physical frequencies information and the system information of other frequencies according to described signal strength signal intensity.
Optionally, described portable terminal is for supporting the multi-card mobile terminal of a plurality of client's identification cards.
Optionally, the signal strength signal intensity of described each frequency of scanning comprises: respectively with each client's identification card access network, scan the signal strength signal intensity of each frequency, and whole frequencies of each client's identification card are sorted by signal strength signal intensity.
Optionally, the network searching method of described portable terminal also comprises: the physical frequencies information and the system information of the frequency that will receive are kept in the buffering area, share for each client's identification card.
Optionally, each client's identification card of described confession is shared and is comprised: if the physical frequencies information and the system information of preserving a certain frequency of client's identification card in the described buffering area, and this frequency belongs to the operator under this client's identification card, and then this client's identification card obtains the physical frequencies information and the system information of this frequency from described buffering area.
Optionally, each client's identification card of described confession is shared and is comprised: if the physical frequencies information and the system information of preserving a certain frequency of client's identification card in the described buffering area, and this frequency does not belong to the operator under this client's identification card, then skips the physical frequencies information of this frequency and the receiving course of system information.
Optionally, described portable terminal is three cards, three standby communication terminals.
For addressing the above problem, the invention provides a kind of portable terminal, comprising:
Radio-frequency module is used to scan the signal strength signal intensity of each frequency;
Receiving element is used to receive the physical frequencies information and the system information of each frequency, and described system information comprises the system message of a plurality of periodic broadcasts;
Control unit, be used to control physical frequencies information and the system information that described receiving element basis signal intensity receives first frequency, and control described receiving element in the time interval of a plurality of system messages that receive described first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.
Optionally, described physical frequencies information be the GSM network frequency correction channel data and sync channel data.
Optionally, a plurality of system messages of described a plurality of system message Broadcast Control Channel transmission that is the GSM network.
Optionally, described control unit comprises first control sub unit, be used to control described receiving element in the time interval of a plurality of system messages that receive described first frequency, received signal intensity is only second to the physical frequencies information and the system information of second frequency of described first frequency.
Optionally, described control unit also comprises second control sub unit, be used to control described receiving element in the time interval of a plurality of system messages that receive described second frequency, received signal intensity is only second to the physical frequencies information and the system information of the 3rd frequency of described second frequency.
Optionally, described control unit also comprises the 3rd control sub unit, is used to control described receiving element in the time interval of a plurality of system messages of described the 3rd frequency, receives the physical frequencies information and the system information of other frequencies according to described signal strength signal intensity.
Optionally, described portable terminal is for supporting the multi-card mobile terminal of a plurality of client's identification cards.
Optionally, described radio-frequency module is used for scanning the signal strength signal intensity of each frequency with each client's identification card access network, and whole frequencies of each client's identification card are sorted by signal strength signal intensity.
Optionally, described portable terminal also comprises: preserve the unit, the physical frequencies information and the system information that are used for the frequency that will receive are kept at buffering area, share for each client's identification card.
Optionally, described preservation unit comprises first shared cell, be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency belongs to operator under this client's identification card, the physical frequencies information and the system information of this frequency is sent to this client's identification card.
Optionally, described preservation unit comprises second shared cell, be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency does not belong to operator under this client's identification card, indicate described control unit to skip the physical frequencies information of this frequency and the receiving course of system information.
Optionally, described portable terminal is three cards, three standby communication terminals.
Compared with prior art, present technique has the following advantages:
The technical program is in the time interval of the system message that receives first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies, the network searching method of serial is improved to parallel network searching method, has shortened time to find network, improved and looked for net spee.
Further, the physical frequencies information and the system information of the frequency that the technical program will receive are kept in the buffering area, obtain described physical frequencies information and system information for other client's identification cards from described buffering area, have further improved and have looked for net spee.
Description of drawings
Fig. 1 is the schematic flow sheet of start network searching method of a kind of portable terminal of prior art;
Fig. 2 is the schematic flow sheet of network searching method of the portable terminal of the embodiment of the invention;
Fig. 3 is the frame structure schematic diagram of the control channel of GSM network standard;
Fig. 4 is the structural representation of the portable terminal of the embodiment of the invention.
Embodiment
The portable terminal of prior art is looked in the process of net in start, and physical frequencies information and system information according to each frequency of signal strength signal intensity difference serial received make and look for net spee slower, and for multi-card mobile terminal, it is particularly outstanding that this problem seems.
The technical program is in the time interval of a certain client's identification card receiving system message, receive the physical frequencies information and the system information of other one or more client's identification cards, promptly the information of Bing Hang each frequency of reception has shortened time to find network, has improved and has looked for net spee.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, the specific embodiment of the present invention is described in detail below in conjunction with drawings and Examples.
Fig. 2 shows the schematic flow sheet of network searching method of the portable terminal of the embodiment of the invention, as shown in Figure 2, comprising: execution in step S101, scan the signal strength signal intensity of each frequency; Execution in step S102, basis signal intensity receives the physical frequencies information and the system information of first frequency, and described system information comprises a plurality of system messages; Execution in step S103, in the time interval of described a plurality of system messages, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.
Portable terminal in the present embodiment is for supporting the multi-card mobile terminal of GSM network standard, corresponding client's identification card is a SIM card, can support 2,3,4 or multiple SIM card more, can repeat described each step among Fig. 2 respectively to each SIM card in specific embodiment, multi-card mobile terminal described in the present embodiment is three cards, three standby communication terminals.But the technical program is not only applicable to GSM standard, also applicable to other mobile communication standards, and as the TD-SCDMA standard, WCDMA standard, CDMA2000 standard.
Fig. 3 shows the frame structure schematic diagram of the control channel (CCH, Control Channel) in the GSM network standard.Described control channel is the logic channel in the GSM network standard, as shown in Figure 3, look in the process of net in start, data in the control channel are a cycle period with 8 multi-frames (Multiframe), be respectively multi-frame 200 to multi-frame 207, and comprise 51 frames (Frame) in each multi-frame, so the data of the control channel of one-period transmission totally 408 frames.Concrete, the structure of each multi-frame is similarly, comprising: frequency correction channel data F, sync channel data S, Broadcast Control Channel data B, Common Control Channel (CCCH, Common control Channel) data C, idle frame I.Wherein, frequency correction channel data F and sync channel data S respectively account for 1 frame, repeat respectively 5 times, are used for transmission frequency correction data and slot synchronization data so that portable terminal carries out the synchronous of frequency and time; Broadcast Control Channel data B accounts for 4 frames, occurs 1 time, is used to transmit the system message of each type, and its content comprises that the sub-district is represented, channel parameter etc.; Public control channel data C takies 4 frames, occurs repeatedly 9 times, is used for paging and portable terminal application networking etc.; Idle frame I accounts for 1 frame, and the end of each multi-frame occurs 1 time.Look in the process of net in start, if data owner frequency correction channel data F, sync channel data S and the Broadcast Control Channel data B of reception.
The inventor, only needs to receive once to get final product through discovering that look in the network process in start, frequency correction channel data F and sync channel data S remain unchanged substantially for the GSM network standard, promptly receives once to get final product in 408 frames.In addition, for the first time before receive frequency correction channel data F and the sync channel data S, not synchronous between portable terminal and the base station, therefore accurate moment of determination frequency correction channel data F and sync channel data S appearance of portable terminal, receive the process that is actually " blind reception " for the first time, be preferably 13 frame data that receive in the control channel in the present embodiment, necessarily include frequency correction channel data F and sync channel data S in feasible 13 frame data that receive, thereby can therefrom extract frequency correction channel data F and sync channel data S, and then carry out frequency correction and slot synchronization.
In addition, Broadcast Control Channel data B periodically transmits, specifically be distributed in the 3rd frame to the 6 frames in each multi-frame, wherein Chuan Shu particular content is the system message (System information) 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 (FN DIV 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 | TC |
| System message 1 | 0 |
| System message 2 | 1 |
| System message 2bis | 5 |
| System message 2ter | 4 or 5 |
| System message 2quater | 4 or 5 |
| System message 3 | 2 or 6 |
| System message 4 | 3 or 7 |
| System message 9 | 4 |
| System message 13 | 4 |
Still with reference to figure 3, the transmission structure of the control channel in the GSM network standard can be divided into 3 parts, is respectively: part i is used for the transmitting physical frequency information, i.e. frequency correction channel data F and sync channel data S; Part ii is used to transmit Broadcast Control Channel data B, promptly various types of system messages; The III part, be used to transmit public control channel data C and the frequency correction channel data F and the sync channel data S of a plurality of repetitions, in the present embodiment, III partly is used to receive Broadcast Control Channel data B and the frequency correction channel data F and the sync channel data S of other frequencies.In start process, the data of required reception comprise frequency correction channel data F, sync channel data S and Broadcast Control Channel data B, and it occupies part i and part ii.And preferred scheme is that frequency correction channel data F and sync channel data S only receive once in the present embodiment, 13 frame data that promptly comprise the part i of described multi-frame 200, can know the scheme of illustrating itself in order to illustrate and to describe, receive frequency correction channel data F and sync channel data S only refer to part i.Therefore, between each system message life period at interval, the described time interval comprises III part in the multi-frame and the part i in next multi-frame.Concrete, in the GSM network standard, the time that each frame takies is about 4.6ms (accurately numerical value is 120/26ms), therefore time of taking altogether of receive frequency correction channel data F and sync channel data S is about 60ms, the time that reception Broadcast Control Channel data B takies is about 18.5ms, the time interval of adjacent two Broadcast Control Channel data B reaches about 217ms, so prior art is in looking for network process, and the most of the time is wasted.The technical scheme of present embodiment is then in the time interval of a plurality of Broadcast Control Channel data B of a frequency, receive frequency correction channel data F, sync channel data S and the Broadcast Control Channel data B of other frequencies, thereby the physical frequencies information and the system information of each frequency of parallel receive have been realized, shortened time to find network, improved and looked for net spee.
Below in conjunction with Fig. 2 and Fig. 3 the network searching method of the portable terminal of present embodiment is elaborated.
Execution in step S101 at first scans the signal strength signal intensity of each frequency.When after the start of described portable terminal energized or after restarting, radio-frequency module scans the signal strength signal intensity of each frequency.Concrete, detect the frequency that each allows access, on each frequency, extract a plurality of measured values, for example can extract 5 measured values and average, calculate the average signal strength of each frequency.
Follow execution in step S102, basis signal intensity receives the physical frequencies information and the system information of first frequency, and described system information comprises a plurality of system messages.In the present embodiment, described first frequency is the highest frequency of signal strength signal intensity, after radio-frequency module locks described first frequency, receives frequency correction channel data F, sync channel data S and the Broadcast Control Channel data B of this frequency.
Follow execution in step S103, in the time interval of described a plurality of system messages, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.In conjunction with Fig. 3, between each system message of first frequency life period at interval in, be in the part i of the III part of a certain multi-frame and next multi-frame, radio-frequency module basis signal intensity switches to second frequency that intensity is only second to described first frequency, and receives frequency correction channel data F, sync channel data S and the Broadcast Control Channel data B of described second frequency.Similar with described first frequency, also life period is at interval between the Broadcast Control Channel data B of second frequency.Because the time interval between adjacent two Broadcast Control Channel data B of first frequency is about 217ms, and the time that the Broadcast Control Channel data B of second frequency takies is about 18.46ms, the time that the frequency correction channel data F of second frequency and the receiving course of sync channel data S take is 60ms, therefore still has a large amount of free time in the time interval.As a preferred embodiment, present embodiment also receives frequency correction channel data F, sync channel data S and the Broadcast Control Channel data B of the 3rd frequency in the time interval of each Broadcast Control Channel data B of described second frequency, the signal strength signal intensity of described the 3rd frequency is only second to second frequency, thereby has realized the parallel receive of 3 frequencies.Certainly, in other embodiments of the invention, can also continue nested other a plurality of frequencies according to described signal strength signal intensity, corresponding information as the 4th frequency, the 5th frequency etc., but need to prove, owing to the time interval between the Broadcast Control Channel data B of first frequency is 217ms, therefore, the frequency of " insertion " amounts to the time that takies and can not surpass the above-mentioned time interval, otherwise can cause the losing of system message of first frequency.
In addition, in the physical frequencies information (13 frame data that promptly comprise frequency correction channel data F and sync channel data S) that receives described first frequency afterwards, to between first Broadcast Control Channel data B that receives described first frequency also life period at interval, this time interval also can be used to receive the physical frequencies information and the system information of other frequencies.
In the present embodiment, described portable terminal is a multi-card mobile terminal, said method is applicable to the network process of looking for of each SIM card, also be the parallel net order of looking between each SIM card, concrete, after portable terminal powers on or resets, insert the signal strength signal intensity of each frequency of GSM network sweep respectively with each SIM card, scan the back signal strength signal intensity by being respectively to weak frequency by force as first SIM card: first frequency, second frequency; Second SIM card scanning back signal strength signal intensity is by being respectively to weak frequency by force: first frequency, second frequency; Three S's IM card scanning back signal strength signal intensity is by being respectively to weak frequency by force: first frequency, second frequency.Afterwards, whole frequencies to each SIM card sort according to signal strength signal intensity, ranking results is: first frequency (belonging to first SIM card), first frequency (belonging to second SIM card), first frequency (belonging to Three S's IM card), second frequency (belonging to first SIM card), second frequency (belonging to second SIM card), second frequency (belonging to Three S's IM card), afterwards, the physical frequencies information and the system information of above-mentioned each frequency are carried out parallel receive.
As a preferred embodiment, after the physical frequencies information and system information that receive a certain frequency, also it is kept in the buffering area, share for each SIM card.Concrete, described shared procedure carries out according to the operator under each frequency and each SIM card, and first SIM card and Three S's IM card belong to same operator in the present embodiment, and as China Mobile, second SIM card belongs to another one operator, as CHINAUNICOM.
At first insert the GSM network, receive the physical frequencies information of first frequency and system information and it is kept at (and by the parsing of system information being determined first frequency belongs to CHINAUNICOM) in the buffering area with first SIM card; Afterwards according to the ranking results of the signal strength signal intensity of each frequency, the follow-up relevant information that should receive first frequency of second SIM card, owing to preserve the relevant information of first frequency in the described buffering area and belong to the affiliated operator's (being CHINAUNICOM) of second SIM card, therefore second SIM card can directly be obtained the physical frequencies information and the system information of first frequency from buffering area, goes to obtain and needn't insert the GSM network; Afterwards, because the operator under Three S's IM card and first frequency is different, therefore directly skip the receiving course of relevant information of first frequency of Three S's IM card.Thus, in the time interval of each system message of first frequency that receives first SIM card, insertion be the receiving course of the relevant information of second frequency, rather than first frequency of second SIM card and Three S's IM card.
In like manner, the physical frequencies information of described second frequency and system information also only need to receive once, and after first SIM card received, second SIM card and Three S's IM card can be shared the relevant information of second frequency of first SIM card.Said method has further improved and has looked for net spee by share the physical frequencies information and the system information of each frequency between each SIM card.
Fig. 4 shows the structural representation of the portable terminal of the embodiment of the invention, comprise: a plurality of sim card slots 304, be connected in the baseband processing chip 301 of sim card slot 304, be connected in display 305, keyboard 306, radio-frequency module 302, power supply 307, exterior storage medium 308 and other peripheral hardwares 309 of baseband processing chip 301 and the antenna 303 that is connected in described radio-frequency module 302.
Wherein, described radio-frequency module 302 is used to scan the signal strength signal intensity of each frequency, is specially the signal strength signal intensity of each frequency that scans a plurality of SIM card respectively of time-division.In the present embodiment, described radio-frequency module 302 is used to scan the signal strength signal intensity of each frequency of three SIM card, and whole frequencies of three SIM card are sorted according to signal strength signal intensity, the physical frequencies information and the system information of each frequency of reception that walks abreast have again realized the portable terminal of " three cards three are treated " afterwards.
Described baseband processing chip 301 comprises receiving element 3011, is used to receive the physical frequencies information and the system information of each frequency, is specially receive frequency correction channel data, sync channel data and a plurality of system message in the present embodiment; Control unit 3012, control physical frequencies information and system information that described receiving element 3011 basis signal intensity receive first frequency, and control described receiving element 3011 in the time interval of a plurality of system messages of described first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.In addition, the baseband processing chip 301 in the present embodiment also comprises preserves unit 3013, and the physical frequencies information and the system information that are used for the frequency that will receive are kept at buffering area, share for each client's identification card.
In the present embodiment, described control unit 3012 comprises the first control sub unit 3012a and the second control sub unit 3012b, wherein, the first control sub unit 3012a is used to control described receiving element 3011 in the time interval of a plurality of system messages that receive described first frequency, and received signal intensity is only second to frequency correction channel data, sync channel data and a plurality of system message of second frequency of described first frequency; The described second control sub unit 3012b is used to control described receiving element 3011 in the time interval of a plurality of system messages that receive described second frequency, and received signal intensity is only second to frequency correction channel data, sync channel data and a plurality of system message of the 3rd frequency of described second frequency.Similarly, in other embodiments, described control unit 3012 can also comprise more a plurality of control sub unit, as the 3rd control sub unit (not shown), is used to realize other more receptions of the relevant information of multifrequency point.
Described preservation unit 3013 comprises: the first shared cell (not shown), be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency belongs to operator under this client's identification card, the physical frequencies information and the system information of this frequency is sent to this client's identification card; The second shared cell (not shown), be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency does not belong to operator under this client's identification card, indicate described control unit 3012 to skip the physical frequencies information of this frequency and the receiving course of system information.
Described portable terminal look for the description of network process referring to the foregoing description, repeat no more here.
To sum up, technique scheme has shortened time to find network by the physical frequencies information and the system information of a plurality of frequencies of parallel receive, has improved and has looked for net spee.
In addition, the physical frequencies information and the system information of the frequency that the technical program will receive are kept in the buffering area, obtain described physical frequencies information and system information for other client's identification cards from described buffering area, have further improved and have looked for net spee.
Though the present invention with preferred embodiment openly as above; but it is not to be used for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made possible change and modification; therefore; every content that does not break away from technical solution of the present invention; to any simple modification, equivalent variations and modification that above embodiment did, all belong to the protection range of technical solution of the present invention according to technical spirit of the present invention.
Claims (24)
1. the network searching method of a portable terminal is characterized in that, comprising:
Scan the signal strength signal intensity of each frequency;
Basis signal intensity receives the physical frequencies information and the system information of first frequency, and described system information comprises a plurality of system messages;
In the time interval of a plurality of system messages that receive described first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.
2. the network searching method of portable terminal as claimed in claim 1 is characterized in that, frequency correction channel data and sync channel data that described physical frequencies information is the GSM network.
3. the network searching method of portable terminal as claimed in claim 1 is characterized in that, a plurality of system messages of the Broadcast Control Channel transmission that described a plurality of system messages are the GSM network.
4. the network searching method of portable terminal as claimed in claim 1, it is characterized in that physical frequencies information and system information that described basis signal intensity receives other at least one frequencies comprise: received signal intensity is only second to the physical frequencies information and the system information of second frequency of described first frequency.
5. the network searching method of portable terminal as claimed in claim 4, it is characterized in that, the system information of described second frequency comprises a plurality of system messages, the network searching method of described portable terminal also was included in the time interval of a plurality of system messages that receive described second frequency, and received signal intensity is only second to the physical frequencies information and the system information of the 3rd frequency of described second frequency.
6. the network searching method of portable terminal as claimed in claim 5, it is characterized in that, the system information of described the 3rd frequency comprises a plurality of system messages, the network searching method of described portable terminal also was included in the time interval of a plurality of system messages that receive described the 3rd frequency, and basis signal intensity receives the physical frequencies information and the system information of other frequencies.
7. the network searching method of portable terminal as claimed in claim 1 is characterized in that, described portable terminal is for supporting the multi-card mobile terminal of a plurality of client's identification cards.
8. the network searching method of portable terminal as claimed in claim 7, it is characterized in that, the signal strength signal intensity of described each frequency of scanning comprises: respectively with each client's identification card access network, scan the signal strength signal intensity of each frequency, and whole frequencies of each client's identification card are sorted by signal strength signal intensity.
9. the network searching method of portable terminal as claimed in claim 8 is characterized in that, also comprises: the physical frequencies information and the system information of the frequency that will receive are kept in the buffering area, share for each client's identification card.
10. the network searching method of portable terminal as claimed in claim 9, it is characterized in that, each client's identification card of described confession is shared and is comprised: if the physical frequencies information and the system information of preserving a certain frequency of client's identification card in the described buffering area, and this frequency belongs to the operator under this client's identification card, and then this client's identification card obtains the physical frequencies information and the system information of this frequency from described buffering area.
11. the network searching method of portable terminal as claimed in claim 9, it is characterized in that, each client's identification card of described confession is shared and is comprised: if the physical frequencies information and the system information of preserving a certain frequency of client's identification card in the described buffering area, and this frequency does not belong to the operator under this client's identification card, then skips the physical frequencies information of this frequency and the receiving course of system information.
12. the network searching method of portable terminal as claimed in claim 1 is characterized in that, described portable terminal is three cards, three standby communication terminals.
13. a portable terminal comprises:
Radio-frequency module is used to scan the signal strength signal intensity of each frequency;
Receiving element is used to receive the physical frequencies information and the system information of each frequency, and described system information comprises a plurality of system messages,
It is characterized in that, also comprise:
Control unit, be used to control physical frequencies information and the system information that described receiving element basis signal intensity receives first frequency, and control described receiving element in the time interval of a plurality of system messages that receive described first frequency, basis signal intensity receives the physical frequencies information and the system information of other at least one frequencies.
14. portable terminal as claimed in claim 13 is characterized in that, frequency correction channel data and sync channel data that described physical frequencies information is the GSM network.
15. portable terminal as claimed in claim 13 is characterized in that, a plurality of system messages of the Broadcast Control Channel transmission that described a plurality of system messages are the GSM network.
16. portable terminal as claimed in claim 13, it is characterized in that, described control unit comprises first control sub unit, be used to control described receiving element in the time interval of a plurality of system messages that receive described first frequency, received signal intensity is only second to the physical frequencies information and the system information of second frequency of described first frequency.
17. portable terminal as claimed in claim 16, it is characterized in that, described control unit also comprises second control sub unit, be used to control described receiving element in the time interval of a plurality of system messages that receive described second frequency, received signal intensity is only second to the physical frequencies information and the system information of the 3rd frequency of described second frequency.
18. portable terminal as claimed in claim 17, it is characterized in that, described control unit also comprises the 3rd control sub unit, be used to control described receiving element in the time interval of a plurality of system messages of described the 3rd frequency, receive the physical frequencies information and the system information of other frequencies according to described signal strength signal intensity.
19. portable terminal as claimed in claim 13 is characterized in that, described portable terminal is for supporting the multi-card mobile terminal of a plurality of client's identification cards.
20. portable terminal as claimed in claim 19 is characterized in that, described radio-frequency module is used for scanning the signal strength signal intensity of each frequency with each client's identification card access network, and whole frequencies of each client's identification card are sorted by signal strength signal intensity.
21. portable terminal as claimed in claim 20 is characterized in that, also comprises: preserve the unit, the physical frequencies information and the system information that are used for the frequency that will receive are kept at buffering area, share for each client's identification card.
22. portable terminal as claimed in claim 21, it is characterized in that, described preservation unit comprises first shared cell, be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency belongs to operator under this client's identification card, the physical frequencies information and the system information of this frequency is sent to this client's identification card.
23. portable terminal as claimed in claim 21, it is characterized in that, described preservation unit comprises second shared cell, be used for preserving the physical frequencies information and the system information of a certain frequency of client's identification card at described buffering area, and when this frequency does not belong to operator under this client's identification card, indicate described control unit to skip the physical frequencies information of this frequency and the receiving course of system information.
24. portable terminal as claimed in claim 13 is characterized in that, described portable terminal is three cards, three standby communication terminals.
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| CN 201010245333 CN101895969B (en) | 2010-07-30 | 2010-07-30 | Mobile terminal and network searching method thereof |
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| CN 201010245333 CN101895969B (en) | 2010-07-30 | 2010-07-30 | Mobile terminal and network searching method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106413048A (en) * | 2016-11-08 | 2017-02-15 | 青岛海信移动通信技术股份有限公司 | Data network searching method and terminal |
| CN108713294A (en) * | 2016-02-26 | 2018-10-26 | 瑞典爱立信有限公司 | The method and apparatus sent for synchronizing signal in wireless communication system |
| 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 |
| WO2020147690A1 (en) * | 2019-01-18 | 2020-07-23 | 维沃移动通信有限公司 | Information sharing method and user equipment |
| CN112637917A (en) * | 2020-12-24 | 2021-04-09 | 三川智慧科技股份有限公司 | 5G network frequency point switching method and system |
Citations (3)
| 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 |
| 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 |
| CN101217743A (en) * | 2008-01-11 | 2008-07-09 | 展讯通信（上海）有限公司 | An optimized method for network searching of dual-card mobile telephone |
-
2010
- 2010-07-30 CN CN 201010245333 patent/CN101895969B/en active Active
Patent Citations (3)
| 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 |
| 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 |
| CN101217743A (en) * | 2008-01-11 | 2008-07-09 | 展讯通信（上海）有限公司 | An optimized method for network searching of dual-card mobile telephone |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713294A (en) * | 2016-02-26 | 2018-10-26 | 瑞典爱立信有限公司 | The method and apparatus sent for synchronizing signal in wireless communication system |
| CN108713294B (en) * | 2016-02-26 | 2022-02-15 | 瑞典爱立信有限公司 | Method and apparatus for synchronization signal transmission in wireless communication system |
| CN106413048A (en) * | 2016-11-08 | 2017-02-15 | 青岛海信移动通信技术股份有限公司 | Data network searching method and 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 |
| WO2020147690A1 (en) * | 2019-01-18 | 2020-07-23 | 维沃移动通信有限公司 | Information sharing method and user equipment |
| CN112637917A (en) * | 2020-12-24 | 2021-04-09 | 三川智慧科技股份有限公司 | 5G network frequency point switching method and system |
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| CN101895969B (en) | 2013-01-09 |
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