CN102361517B - Multi-card mobile terminal and synchronization method and device thereof - Google Patents

Multi-card mobile terminal and synchronization method and device thereof Download PDF

Info

Publication number
CN102361517B
CN102361517B CN2011101616642A CN201110161664A CN102361517B CN 102361517 B CN102361517 B CN 102361517B CN 2011101616642 A CN2011101616642 A CN 2011101616642A CN 201110161664 A CN201110161664 A CN 201110161664A CN 102361517 B CN102361517 B CN 102361517B
Authority
CN
China
Prior art keywords
frame number
terminal card
synchronizing information
card
broadcasting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN2011101616642A
Other languages
Chinese (zh)
Other versions
CN102361517A (en
Inventor
许杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spreadtrum Communications Shanghai Co Ltd
Original Assignee
Spreadtrum Communications Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spreadtrum Communications Shanghai Co Ltd filed Critical Spreadtrum Communications Shanghai Co Ltd
Priority to CN2011101616642A priority Critical patent/CN102361517B/en
Publication of CN102361517A publication Critical patent/CN102361517A/en
Application granted granted Critical
Publication of CN102361517B publication Critical patent/CN102361517B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y02B60/50—

Abstract

The invention discloses a multi-card mobile terminal and a synchronization method and a device thereof, wherein multiple cards at least comprise a first terminal card in a standby mode in a first network cell and the synchronization method comprises the following steps of: determining the relative synchronization information of a second terminal card, wherein the relative synchronization information is related with first synchronization information of the first network cell in which the first terminal card is resided and second synchronization information of a second network cell synchronized with the second terminal card which is a terminal card in the standby mode; and keeping the synchronization of the second terminal card and the second network cell based on the relative synchronization information of the second terminal card and third synchronization information of the first network cell in which the first terminal card is resided. By the technical scheme provided by the invention, the synchronization of other terminal cards can be kept only by determining the synchronization of the first terminal card, so the cost and the power consumption of the multi-card mobile terminal can be reduced.

Description

A kind of multi-card mobile terminal and method for synchronous thereof and device
Technical field
The present invention relates to the mobile communication technology field, particularly a kind of multi-card mobile terminal and method for synchronous thereof and device.
Background technology
Ripe gradually along with the 3G (Third Generation) Moblie technology compared with second generation mobile communication system, its efficient spectrum efficiency, higher service quality and security performance, and to the support of high speed business so that 3-G (Generation Three mobile communication system) promoted rapidly.But at present the network coverage of 3 G mobile communication network is comprehensive not enough, therefore, a kind ofly can support the 3G (Third Generation) Moblie technology, can support again the double-mode and double-standby terminals of many cards to address this problem preferably.
Existing double model double standby phone mainly is to support GSM (global system for mobile communications, global system for mobile communications)/TD-SCDMA (TD SDMA, Time Division-Synchronous Code Division Multiple Access) two kinds of networks, namely in a mobile phone, can put into simultaneously two GSM/TD-SCDMA cards, and can respectively simultaneously standby in GSM network and TD-CDMA network.But existing double model double standby phone technology is to distinguish maintain synchronization by two are blocked, thereby guarantees that mobile phone can simultaneously standby in two network schemers.The synchro system of two cards is fully independent in this scheme, and parallel like this processing scheme implements more complicated, even the terminal that has uses two baseband processing chips that two cards are controlled respectively, has increased cost and the power consumption of terminal.For example, with reference to Chinese patent application number be 200710138592.3 patent disclosure a kind of TD-SCDMA and GSM double-mode double-standby mobile terminal, the scheme that this patent provides with the system integration of GSM terminal and TD-SCDMA terminal in a terminal, standby when having realized GSM and TD-SCDMA system, and in each automatic network, carry out respectively voice, note and other data services.But, the scheme that this patent provides still be by two autonomous systems respectively to gsm module and TD-SCDMA module maintain synchronization, do not solve existing technical problem.
Summary of the invention
The problem that the present invention solves provides a kind of multi-card mobile terminal and method for synchronous and device, reduces cost and the power consumption of multi-card mobile terminal.
For addressing the above problem, the invention provides a kind of method for synchronous of multi-card mobile terminal, wherein, many cards comprise standby at least at the first terminal card of first network residential quarter, described method for synchronous comprises the steps:
Determine the relative synchronizing information of the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card, described the second terminal card is the terminal card that is in holding state;
The 3rd synchronizing information based on the resident first network residential quarter of the relative synchronizing information of described the second terminal card and the described first terminal card that receives keeps the synchronous of described the second terminal card and described second network residential quarter.
Alternatively, the relative synchronizing information of determining described the second terminal card comprises the steps:
Obtain the first synchronizing information of the resident first network residential quarter of described first terminal card;
Utilize the gap of the paging cycle of described first terminal card that described the second terminal card resident network cell and adjacent area are searched for and measured, determine the second network residential quarter synchronous with described the second terminal card;
Obtain the second synchronizing information with the synchronous second network residential quarter of described the second terminal card;
Determine the relative synchronizing information of described the second terminal card according to the first synchronizing information of the resident first network residential quarter of described first terminal card and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
Alternatively, described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number;
Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number;
The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset1 that puts with respect to described first start bit of described the second original position.
Alternatively, described the 3rd synchronizing information comprise the 3rd broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and with the 3rd original position of the corresponding frame of described the 3rd broadcasting frame number;
The 3rd synchronizing information based on the resident first network residential quarter of the relative synchronizing information of described the second terminal card and the described first terminal card that receives keeps comprising synchronously of described the second terminal card and described second network residential quarter:
According to the 3rd broadcasting frame number, determine that with the side-play amount that the 3rd original position and described second original position of described the 3rd broadcasting frame number corresponding frame are put with respect to described first start bit fourth beginning position that the 4th synchronizing information of described the second terminal card and described second network residential quarter, described the 4th synchronizing information comprise the 4th broadcasting frame number, the 4th broadcasting frame number correspondence frame is with respect to the 3rd side-play amount of broadcasting the 3rd original position of frame number correspondence frame.
Alternatively, described first network residential quarter is the TD-SCDMA network cell, and described second network residential quarter is the GSM network cell,
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12, then described the 4th broadcasting frame number G 2=(T 2-T 1) * L t/ L g+ G 1The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T 1) * L t-offset 1) mod (L g)), wherein, G 1Be the second broadcasting frame number, L tBe the frame length of TD-SCDMA, L gFrame length for GSM;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ by more than 12, then described the 4th broadcasting frame number G 2=(T 2-T n) * L t/ L g+ G nThe 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T n) * L t-offset 1) mod (L g)), T wherein nBe T 1The be separated by broadcasting frame number of TD-SCDMA frame of 12*N frame of frame, G nBe G 1The be separated by broadcasting frame number of GSM frame of 13*N frame of frame, L tBe the frame length of TD-SCDMA, L gBe the frame length of GSM, N=(T 2-T 1)/12, N is natural number;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ and equal 12*N, then described the 4th broadcasting frame number G 2=G 1+ 13*N, the 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=offset 1, wherein, G 1Be the second broadcasting frame number, N=(T 2-T 1)/12, N is natural number.Alternatively, also comprise step: based on the variation of described the first synchronizing information and/or described the second synchronizing information, upgrade the relative synchronizing information of described the second terminal card.
Alternatively, based on the variation of described the first synchronizing information and/or described the second synchronizing information, the relative synchronizing information of upgrading described the second terminal card comprises:
Putting the deviate of self adjusting when described first start bit is Δ offset 1The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 1
The deviate of adjusting when described the second original position self is Δ offset 2The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 2Alternatively, based on the variation of described the first synchronizing information and/or described the second synchronizing information, the relative synchronizing information of upgrading described the second terminal card also comprises: if the side-play amount offset that described the second original position is put with respect to described first start bit 1' when exceeding the frame length of described second network residential quarter, described side-play amount offset then 1"=offset 1'-frame length, and the second broadcasting frame number adds 1;
If described the second original position is put side-play amount offset with respect to described first start bit 1' be negative value, described side-play amount offset then 1"=frame length+offset 1', and the second broadcasting frame number subtracts 1.
Alternatively, also comprise step: judge whether synchronization failure of described the second terminal card, if described the second terminal card synchronization failure then utilizes the gap of the paging cycle of described first terminal card that described the second terminal card is re-started synchronously.
Alternatively, the basis for estimation of described the second terminal card synchronization failure comprise following any: 1) decoding synchronous channel SCH, surpass continuously the first threshold value if separate wrong number of times, then determine synchronization failure of described the second terminal card; 2) decode broadcast information BCCH surpasses the second threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card; 3) decoding paging information PCH surpasses the 3rd threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card.
Alternatively, described the first threshold value, the second threshold value and the 3rd threshold value are 3 times or 4 times.
Alternatively, described first network residential quarter is GSM network cell or TD-SCDMA network cell or WCDMA network cell.
Alternatively, described second network residential quarter is GSM network cell or TD-SCDMA network cell or WCDMA network cell.
A kind of synchronizer of multi-card mobile terminal, wherein, many cards comprise standby at least at the first terminal card of first network residential quarter, described synchronizer comprises:
The information determining unit, it is used for determining the relative synchronizing information of the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card, described the second terminal card is the terminal card that is in holding state;
Synchronous performance element, it is used for the relative synchronizing information of the second terminal card of determining based on described information determining unit and the 3rd synchronizing information of the first network residential quarter that the described first terminal card that receives is resident keeps the synchronous of described the second terminal card and described second network residential quarter.
Alternatively, described information determining unit comprises:
The first acquiring unit, it is used for obtaining the synchronizing information of the resident first network residential quarter of described first terminal card;
The first determining unit, its gap for the paging cycle that utilizes described first terminal card is searched for and is measured described the second terminal card resident network cell and adjacent area, determines the second network residential quarter synchronous with described the second terminal card;
Second acquisition unit, it is used for obtaining the synchronizing information with the synchronous second network residential quarter of described the second terminal card;
The second determining unit, it is used for determining the relative synchronizing information of described the second terminal card according to the first synchronizing information of the resident first network residential quarter of described first terminal card and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
Alternatively, described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number;
Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number;
The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset1 that puts with respect to described first start bit of described the second original position.
Alternatively, described the 3rd synchronizing information comprise the 3rd broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and with the 3rd original position of the corresponding frame of described the 3rd broadcasting frame number;
Described synchronous performance element is used for according to the 3rd broadcasting frame number, determines that with the side-play amount that the 3rd original position and described second original position of the corresponding frame of described the 3rd broadcasting frame number are put with respect to described first start bit fourth beginning position that the 4th synchronizing information of described the second terminal card and described second network residential quarter, described the 4th synchronizing information comprise the 4th broadcasting frame number, the 4th broadcasting frame number correspondence frame is with respect to the 3rd side-play amount of broadcasting the 3rd original position of frame number correspondence frame.
Alternatively, described first network residential quarter is the TD-SCDMA network cell, and described second network residential quarter is the GSM network cell;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12, then described the 4th broadcasting frame number G 2=(T 2-T 1) * L t/ L g+ G 1The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T 1) * L t-offset 1) mod (L g)), wherein, G 1Be the second broadcasting frame number, L tBe the frame length of TD-SCDMA, L gFrame length for GSM;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ by more than 12, then described the 4th broadcasting frame number G 2=(T 2-T n) * L t/ L g+ G nThe 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=Lg -((T 2-T n) * L t-offset 1) mod (L g)), T wherein nBe T 1The be separated by broadcasting frame number of TD-SCDMA frame of 12*N frame of frame, G nBe G 1The be separated by broadcasting frame number of GSM frame of 13*N frame of frame, L tBe the frame length of TD-SCDMA, L gBe the frame length of GSM, N=(T 2-T 1)/12, N is natural number;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ and equal 12*N, then described the 4th broadcasting frame number G 2=G 1+ 13*N, the 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=offset 1, wherein, G 1Be the second broadcasting frame number, N=(T 2-T 1)/12, N is natural number.
Alternatively, also comprise information updating unit, it is used for the variation based on described the first synchronizing information and/or described the second synchronizing information, upgrades the relative synchronizing information of described the second terminal card.
Alternatively, described information updating unit comprises: the first updating block, it is used for putting the deviate of self adjusting when described first start bit is Δ offset 1The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 1
The second updating block, its deviate that is used for adjusting when described the second original position self is Δ offset 2The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 2
Alternatively, described information updating unit also comprises: the first processing unit that is connected with the second updating block with described the first updating block respectively, if it is used for side-play amount offset that described the second original position is put with respect to described first start bit 1' when exceeding the frame length of described second network residential quarter, described side-play amount offset then 1"=offset 1'-frame length, the second broadcasting frame number adds 1 simultaneously;
The second processing unit that is connected with the second updating block with described the first updating block is respectively put side-play amount offset if it is used for described the second original position with respect to described first start bit 1' be negative value, described side-play amount offset then 1"=frame length+offset 1', the second broadcasting frame number subtracts 1 simultaneously.
Alternatively, also comprise respectively the 3rd processing unit that is connected with described synchronous performance element with described information determining unit, it is used for judging whether synchronization failure of described the second terminal card, if described the second terminal card synchronization failure, then control the relative synchronizing information that described information determining unit redefines described the second terminal card, and control described synchronous performance element based on the relative synchronizing information of described the second terminal card keep described the second terminal card and described second network residential quarter synchronously.
Alternatively, the basis for estimation of described the second terminal card synchronization failure comprise following any: 1) decoding synchronous channel SCH, surpass continuously the first threshold value if separate wrong number of times, then determine synchronization failure of described the second terminal card; 2) decode broadcast information BCCH surpasses the second threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card; 3) decoding paging information PCH surpasses the 3rd threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card.
Alternatively, described the first threshold value, the second threshold value and the 3rd threshold value are 3 times or 4 times.
Alternatively, described first network residential quarter is GSM network cell or TD-SCDMA network cell or WCDMA network cell.
Alternatively, described second network residential quarter is GSM network cell or TD-SCDMA network cell or WCDMA network cell.
The embodiment of the invention also provides a kind of portable terminal that comprises above-mentioned synchronizer.
Compared with prior art, the embodiment of the invention has the following advantages: in multi-card mobile terminal, safeguard that the first terminal card network cell resident with it keeps synchronously and holding state, then the synchronous and holding state of second network residential quarter maintenance by the second terminal card and first terminal card being kept realize that synchronously the second terminal card is resident with it and contiguous, wherein said the second terminal card are that in addition other of first terminal card are in the terminal card of holding state.By so relative synchronization policy, follow-up multi-card mobile terminal is done when synchronous, only need to determine described first terminal card can keep synchronously other terminal cards that are in holding state synchronously, thereby reduce cost and the power consumption of multi-card mobile terminal.
Description of drawings
Fig. 1 is the schematic flow sheet of method for synchronous of a kind of multi-card mobile terminal of the embodiment of the invention;
Fig. 2 is the schematic flow sheet that the embodiment of the invention is determined the relative synchronizing information of described the second terminal card;
Fig. 3 is that the described first terminal of embodiment of the invention Cali makes synchronous frame structure schematic diagram with the paging cycle gap to the second terminal card;
Fig. 4 and Fig. 5 are that the described multi-card mobile terminal of the embodiment of the invention is made synchronous frame structure schematic diagram to described the second terminal card in the first network residential quarter;
Fig. 6 is the structural representation of the synchronizer of the described a kind of multi-card mobile terminal of the embodiment of the invention.
Embodiment
The inventor finds it is by to two terminal cards maintain synchronization respectively in existing multi-card mobile terminal (take the dual-mode dual-card dual-standby terminal as example), thereby guarantees that mobile phone can while standby in two network schemers.The synchro system of two terminal cards is fully independent in this scheme, and parallel like this processing scheme implements more complicated, even the mobile phone that has uses two baseband processing chips that two cards are controlled respectively, thereby has increased cost and the power consumption of multi-card mobile terminal.Need to prove that above-mentioned terminal card comprises SIM card (subscriber identification module, Subscriber Identity Module) or usim card (global subscriber identification module, Universal Subscriber Identity Module).
For the problems referred to above, the inventor provide a kind of relatively synchronous strategy make many terminal cards in the standby process respectively the network cell resident with it keep synchronously.Particularly, first resident with it network cell of first terminal card in the multi-card mobile terminal is kept synchronously and holding state, then by the second terminal card and first terminal card are kept realizing synchronously that resident with it and the contiguous network cell of the second terminal card keeps synchronously and holding state, wherein said the second terminal card is except the terminal card that is in holding state in the multi-card mobile terminal.By so relative synchronization policy, if guarantee the first terminal card can keep synchronously the second terminal card synchronously, thereby reduce cost and the power consumption of multi-card mobile terminal.
Need to prove, in an embodiment of the present invention, multi-card mobile terminal can be dual-mode dual-card dual-standby terminal or bimodulus Multi-card multi-standby terminal, has frequently chip of injection in this portable terminal, be that described portable terminal only has a pair of radio frequency transceiver, can only be operated in a kind of frequency range under any time; Single-baseband processing chip, namely described portable terminal any time only processes the data that receive under a kind of network schemer.In addition, in an embodiment of the present invention, the terminal card of described multi-card mobile terminal is to describe as an example of the TD-SCDMA/GSM double-mode card example, and double card is in holding state simultaneously.But in actual applications, described multi-card mobile terminal is not limited to above-mentioned two kinds of network schemers.For example, double card also can be to be associated with heterogeneous networks pattern WCDMA (Wideband Code Division Multiple Access (WCDMA), Wideband Code Division Multiple Access)/GSM double-mode card, TD-SCDMA/WCDMA double-mode card etc.; Again for example, double card also can be the method for synchronous of the portable terminal that can provide by the embodiment of the invention such as the GSM single mode card that is associated with a kind of network schemer, TD-SCDMA single mode card realize double card when holding state respectively resident with it and/or contiguous network cell keep synchronously.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
What reference was shown in Figure 1 is the schematic flow sheet of the method for synchronous of the described a kind of multi-card mobile terminal of the embodiment of the invention.Particularly, wherein said multi-card mobile terminal comprises standby at least at the first terminal card of first network residential quarter, and the second terminal card is that outer other of first terminal are in the terminal card of holding state, and described the second terminal card standby is in the second network residential quarter.Need to prove that for convenience of description, in an embodiment of the present invention, described first network residential quarter is that TD-SCDMA network cell, described second network residential quarter are the GSM network cell, but in actual applications, is not limited to above-mentioned two kinds of network cells.
At first, execution in step S1: determine the relative synchronizing information of the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
Particularly, described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number.Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number.Wherein, in the present embodiment, (decoding broadcast channel BCCH (Broadcast Control Channel in the broadcast that described the first broadcasting frame number can send by the base station that receives the first network residential quarter, Broadcast Control Channel)) acquire, and SCH message and the described SCH message of decoding that described the second broadcasting frame number can send by the synchronous channel SCH (synchronizing channel, Synchronization Channel) that receives the second network residential quarter acquire; Further, owing to can determine described the first broadcasting frame number and described the second broadcasting frame number according to said process, therefore show that the broadcast channel achieve frame of described first terminal card and described first network residential quarter is synchronous, the broadcast channel achieve frame of described the second terminal card and described second network residential quarter is synchronous, and so described first start bit is put with the second original position and just can be determined.Further, the relative synchronizing information of described the second terminal card comprises the side-play amount that described the first broadcasting frame number, the second broadcasting frame number and described the second original position are put with respect to described first start bit.
Then, execution in step S2: the 3rd synchronizing information based on the resident first network residential quarter of relative synchronizing information and the described first terminal card that receives of described the second terminal card keeps the synchronous of described the second terminal card and described second network residential quarter.
Particularly, the implementation process of this step is when the follow-up first terminal card of keeping multi-card mobile terminal and the second terminal synchronizes, only needs the relative synchronizing information of described the second terminal card of determining according to the 3rd synchronizing information that receives the resident first network of described first terminal card residential quarter and above-mentioned steps S2 to get final product.Wherein said the 3rd synchronizing information comprise the 3rd broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and with the 3rd original position of the corresponding frame of described the 3rd broadcasting frame number.
What further, reference was shown in Figure 2 is the schematic flow sheet that the present invention determines the relative synchronizing information of described the second terminal card.
At first, execution in step S11: the first synchronizing information of obtaining the resident first network residential quarter of described first terminal card.Particularly, described first terminal card is in holding state, and in paging cycle, the radio frequency chip in the portable terminal will receive the synchronizing information (i.e. the first synchronizing information) of sending from the first network cell base station.Wherein, described the first synchronizing information comprises the first broadcasting frame number and puts with the first start bit of the corresponding frame of described the first broadcasting frame number that described first start bit is put the original position of the TS0 time slot that is described the first broadcast frame.
Then, execution in step S12: utilize the gap of the paging cycle of described first terminal card that described the second terminal card resident network cell and adjacent area are searched for and measured, determine the second network residential quarter synchronous with described the second terminal card.Particularly, usually in the paging cycle of first terminal card, only need part-time to come paging receiving information, and in the gap of paging cycle, usually radio frequency chip and the baseband processing chip of portable terminal all are in idle condition, can search for and measure the second terminal card resident network cell and adjacent area in this section free time.The network cell of considering described the second terminal card may gravity treatment, therefore need to search for and measure the current resident network cell of the second terminal card and contiguous residential quarter thereof, determine to be fit to the second network residential quarter of the resident or gravity treatment of the second terminal card, the second network residential quarter can have a plurality of, namely may have a plurality of network cells that need to be synchronous with the second terminal card.
Particularly, described to the resident network cell of the second terminal card with the adjacent area is searched for and measurement comprises following process: described first terminal card and the second terminal card all are in holding state, and portable terminal is in the resident first network residential quarter of first terminal card; Paging cycle gap at described first terminal card, the radio frequency chip of portable terminal will receive the signal that send the base station of the resident and/or contiguous network cell of described the second terminal card, and by baseband processing chip received signal strength (RSSI, Received Signal Strength Indication) to the received signal according to from sorting to weak by force; Set described received signal strength threshold value (for example ,-90dB～-95dB), and definite received signal strength satisfy (more than or equal to) number of the network cell of described threshold value, thereby determine to do synchronous all second network residential quarters.
Then, execution in step S13: obtain the second synchronizing information with the synchronous second network residential quarter of described the second terminal card.Particularly, the second network residential quarter that the needs of determining according to above-mentioned steps S12 and described the second terminal card are synchronous, obtain respectively the second synchronizing information of described the second terminal card and second network residential quarter, wherein said the second synchronizing information comprises the second original position of the second broadcasting frame number and the corresponding frame of described the second broadcasting frame number.
Then, execution in step S14: the relative synchronizing information of determining described the second terminal card according to the second synchronizing information of the synchronous second network residential quarter of the first synchronizing information of the resident first network residential quarter of described first terminal card and described the second terminal card.
Particularly, as shown in Figure 3, the first synchronizing information of the first network residential quarter that described first terminal card is resident comprises that the first start bit of the first broadcasting frame number and the corresponding frame 1 of described the first broadcasting frame number puts TS01; The second synchronizing information of the second network residential quarter that described the second terminal card is synchronous comprises the second original position TS02 of the second broadcasting frame number and frame 2 corresponding to described the second broadcasting frame number.Can determine the side-play amount offset1 that described the second original position is put with respect to described first start bit according to above-mentioned information.
In embodiments of the present invention, the resident first network of described first terminal card residential quarter (TD-SCDMA network cell) is also synchronous with the maintenance of described first network residential quarter, determines the first synchronizing information of described first terminal card; Described the second terminal card is relative with the first terminal card synchronous, and resident with it and/or contiguous second network residential quarter (GSM network cell) keeps synchronously, determine the second synchronizing information of described the second terminal card, and determine the relative synchronizing information of described first terminal card and the second terminal card according to described the first synchronizing information and the second synchronizing information.Wherein, described relative synchronizing information comprises that the first start bit of the second broadcasting frame number in first in the first synchronizing information broadcasting frame number, the second synchronizing information and the corresponding frame of described the first broadcasting frame number puts the side-play amount offset1 with the second original position of the corresponding frame of described the second broadcasting frame number.
Further, according to described relative synchronizing information, in subsequent synchronization processes, as long as determining described first terminal card and described first network residential quarter keeps synchronously, can determine the 4th synchronizing information of described the second terminal card and described second network residential quarter, be execution in step S2, described the 4th synchronizing information comprises that fourth beginning position of the 4th broadcasting frame number, the corresponding frame of the 4th broadcasting frame number is with respect to the side-play amount of the 3rd original position of the corresponding frame of the 3rd broadcasting frame number.
Particularly, with reference to figure 4 and the schematic diagram of keeping the relative synchronous specific embodiment with the first terminal card of the second terminal card of the present invention shown in Figure 5.As well known to those skilled in the art, because the frame length L of TD-SCDMA network cell tFrame length L with the GSM network cell gFollowing relation: L is arranged t* 12=L g* 13, i.e. G 1Frame (GSM frame) and T 1Relative displacement and the G of frame (TD-SCDMA frame) 14(with G 113 GSM frames in interval between the frame) frame and T 13Frame is (with T 112 TD-SCDMA frames in interval between the frame) relative displacement is identical.In other words, from T 1After frame begins 12 TD-SCDMA frames, this moment GSM frame (G 14Frame) with TD-SCDMA frame (T 13Frame) relative position returns to again G 1Frame and T 1Frame relative position constantly.Therefore, keep that described the second terminal card is relative with the first terminal card can be divided into following three kinds of situations synchronously.
The first situation: as shown in Figure 4 be in first network residential quarter (TD-SCDMA network cell) less than the time interval of 12 TD-SCDMA frame lengths in described the second terminal card is made synchronously i.e. the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12.
Particularly, the frame length of supposing described TD-SCDMA network cell is L t(common L t=5ms), the frame length of second network residential quarter (GSM network cell) is L g(common L g=60/13ms).
Determine that according to Fig. 2 is described the method for the relative synchronizing information of the second terminal card can obtain at T 1Image duration, described the second terminal card is the first broadcasting frame number T at the GSM network cell with respect to the synchronizing information (being relative synchronizing information) of TD-SCDMA network cell 1, the second broadcasting frame number G 1, the second broadcasting frame number G 1The second original position of corresponding frame is with respect to the first broadcasting frame number T 1The side-play amount that the first start bit of corresponding frame is put is offset 1
So, at T 2Image duration, described the second terminal card is as follows with respect to the account form of the 4th synchronizing information (in fact also can be called relative synchronizing information) of TD-SCDMA network cell at the GSM network cell:
In the time of synchronously, the 4th broadcasting frame number G 2=(T 2-T 1) * L t/ L g+ G 1(wherein "/" is for dividing exactly computing), wherein, the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12.
The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T 1) * L t-offset 1) mod (L g)).
Suppose at adjacent two frames of TD-SCDMA described the second terminal card to be done synchronously, then can be calculated T by top computing formula 2=T 1+ 1, L t/ L g=1, G 2=G 1+ 1, offset 2=L g-(L t-offset 1).
Second case: as shown in Figure 5 be in first network residential quarter (TD-SCDMA network cell), described the second terminal card to be done synchronously in greater than the time interval of 12 TD-SCDMA frame lengths, i.e. the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ by more than 12.
Particularly, at first, at T 1Image duration, described the second terminal card is the first broadcasting frame number T at the GSM network cell with respect to the synchronizing information (being relative synchronizing information) of TD-SCDMA network cell 1, the second broadcasting frame number G 1, the second broadcasting frame number G 1The second original position of corresponding frame is with respect to the first broadcast frame T 1The side-play amount that the first start bit of corresponding frame is put is offset 1
Further, here can be T 1Frame and T 2Time between the frame is divided into two parts, at first calculates by T 1Frame is to T 2Middle (the L of being separated by of frame t* 12) the number N of frame length, i.e. N=(T 2-T 1)/12, T 1Be the first broadcasting frame number, T 2Be the 3rd broadcasting frame number, N is natural number.
Then, suppose and T 1The be separated by broadcasting frame number of TD-SCDMA frame of 12*N frame of frame is T n, therefore at T nImage duration, the sync bit of the relative TD-SCDMA frame of GSM frame (side-play amount of original position) still is offset 1, and T nFrame and T 2The time interval between the frame is less than the frame length of 12 TD-SCDMA frames.
Therefore, can obtain T nImage duration, described the second terminal card was as follows with respect to the synchronizing information of TD-SCDMA network cell at the GSM network cell:
In the time of synchronously, broadcasting frame number G n=G1+13*N, broadcasting frame number T n=T 1+ 12*N, broadcasting frame number G nThe original position of corresponding frame is with respect to broadcasting frame number T nThe side-play amount offset of the original position of corresponding frame n=offset 1
Then, at T 2Image duration, described the second terminal card can obtain according to the described method of similar above-mentioned the first situation in the 4th synchronizing information (being relative synchronizing information) of GSM network cell with respect to the TD-SCDMA network cell:
The 4th broadcasting frame number G 2=(T 2-T n) * L t/ L g+ G n
The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The 3rd original position offset of corresponding frame 2=L g-((T 2-T n) * L t-offset 1) mod (L g)), wherein mod is modulo operation.
The third situation: in first network residential quarter (TD-SCDMA network cell), equal in time interval of integral multiple of 12 TD-SCDMA frame lengths described the second terminal card to be done synchronously, i.e. the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ and equal 12*N, N is natural number, then the 4th broadcasting frame number G 2=G 1+ 13*N, the 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=offset 1
Keep the relative synchronous specific embodiment with the first terminal card of the second terminal card and can find out according to above-mentioned, relative synchronizing information according to fixed described the second terminal card and first terminal card, in subsequent synchronization processes, as long as determine that described first terminal card and described first network residential quarter keep can determining the synchronizing information of described the second terminal card and described second network residential quarter synchronously.
Further, when safeguarding the relative synchronizing information of described the second terminal card and first terminal card on subsequent cycle ground, because the variation of mobile terminal locations, accordingly variation also will occur in described the first synchronizing information and/or the second synchronizing information.
If the sync bit of described first terminal card changes, for example, it is Δ offset that the first start bit of the frame that the first broadcasting frame number is corresponding described in described the first synchronizing information is put the deviate of self adjusting 1The time, the side-play amount offset that the second original position of the frame that then the second broadcasting frame number is corresponding described in described the second synchronizing information is put with respect to described first start bit 1'=offset 1+ Δ offset 1Further, if described side-play amount offset 1' length surpassed GSM frame length L g, offset then 1"=offset 1'-L g, and described the second broadcasting frame number is also corresponding adds 1; If described side-play amount offset 1' be negative value, then offset 1"=L g+ offset 1', and described the second broadcasting frame number subtracts 1 with corresponding.
If the sync bit of described the second terminal card changes, for example, the deviate that second original position self of the frame that the second broadcasting frame number is corresponding described in described the second synchronizing information is adjusted is Δ offset 2, then at original relative displacement offset 1The basis on add Δ offset 2, i.e. offset 1'=offset 1+ Δ offset 2Further, consider GSM frame length L gFactor, if described side-play amount offset 1' length surpassed GSM frame length L g, offset then 1"=offset 1'-L g, and the second broadcasting frame number is also corresponding adds 1; If described side-play amount offset 1' be negative value, then offset 1"=L g+ offset 1', and the second broadcasting frame number subtracts 1 with corresponding.
In the present embodiment, in the synchronizing process of the second terminal card, can also judge whether synchronization failure of described the second terminal card, if synchronization failure, then redefine the relative synchronizing information of described the second terminal card, and keep the synchronous of described the second terminal card and described second network residential quarter based on the relative synchronizing information of described the second terminal card.That is to say, if the second terminal card and second network residential quarter lose synchronously, then according to step S1 and S2 redefine need to be synchronous with the second terminal card the second network residential quarter, and keep the second terminal card and second network cell synchronous.
Wherein, judge described the second terminal card whether the foundation of synchronization failure can comprise following any: 1) decoding synchronous channel SCH, surpass continuously the first threshold value if separate wrong number of times, then determine synchronization failure of described the second terminal card; 2) decode broadcast information BCCH surpasses the second threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card; 3) decoding paging information PCH surpasses the 3rd threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card.Alternatively, wherein said the first threshold value, the second threshold value and the 3rd threshold value are 3 times or 4 times.As well known to those skilled in the art, so-called " separating wrong " just refers to the as a result check errors of CRC (cyclic redundancy check (CRC) code) decoding in the channel-decoding, and wherein said CRC (cyclic redundancy check (CRC) code) is a kind of error check code the most frequently used in the data communication.
Fig. 6 shows the structural representation of the synchronizer of a kind of portable terminal of the present invention.Particularly, the synchronizer 1 of described portable terminal comprises: information determining unit 11, it be used for to determine the relative synchronizing information of described the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card; Synchronous performance element 12, it is used for the relative synchronizing information of the second terminal card of determining based on described information determining unit 11 and the 3rd synchronizing information of the first network residential quarter that the described first terminal card that receives is resident keeps the synchronous of described the second terminal card and described second network residential quarter; Information updating unit 13, it is used for the variation based on described the first synchronizing information and/or described the second synchronizing information, upgrades the relative synchronizing information of described the second terminal card; The 3rd processing unit 14 that is connected with described synchronous performance element 12 with described information determining unit 11 respectively, it is used for judging whether synchronization failure of described the second terminal card, if described the second terminal card synchronization failure, then control the relative synchronizing information that described information determining unit 11 redefines described the second terminal card, and control described synchronous performance element 12 based on the relative synchronizing information of described the second terminal card keep described the second terminal card and described second network residential quarter synchronously.
Further, described information determining unit 11 also comprises: the first acquiring unit 111, and it is used for obtaining the first synchronizing information of the resident first network residential quarter of described first terminal card; The first determining unit 112, its gap for the paging cycle that utilizes described first terminal card is searched for and is measured described the second terminal card resident network cell and adjacent area, determines the second network residential quarter synchronous with described the second terminal card; Second acquisition unit 113, it is used for obtaining the synchronizing information with the synchronous second network residential quarter of described the second terminal card; And second determining unit 114, it is used for determining the relative synchronizing information of described the second terminal card according to the synchronizing information of the resident first network residential quarter of described first terminal card and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
Further, described synchronous performance element 12 can also be used for according to the 3rd broadcasting frame number, broadcast the 4th synchronizing information that the 3rd original position of the corresponding frame of frame number and side-play amount that described the second original position is put with respect to described first start bit are determined described the second terminal card and described second network residential quarter with the described the 3rd.
Described information updating unit 13 comprises: the first updating block 131, it is used for putting the deviate of self adjusting when described first start bit is Δ offset 1The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 1The second updating block 132, its deviate that is used for adjusting when described the second original position self is Δ offset 2The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ Δ offset 2
Described information updating unit 13 also comprises: the first processing unit 133 that is connected with the second updating block 132 with described the first updating block 131 respectively, if it is used for side-play amount offset that described the second original position is put with respect to described first start bit 1' when exceeding the frame length of described second network residential quarter, described side-play amount offset then 1"=offset 1'-frame length, and the second broadcasting frame number adds 1; The second processing unit 134 that is connected with the second updating block 132 with described the first updating block 131 is respectively put side-play amount offset if it is used for described the second original position with respect to described first start bit 1' be negative value, described side-play amount offset then 1"=frame length+offset 1', and the second broadcasting frame number subtracts 1.
The present invention also provides a kind of Fig. 6 of comprising multi-card mobile terminal of described synchronizer, in actual applications, described synchronizer can be embedded on the baseband processing chip in the multi-card mobile terminal, and matches with radio frequency chip and to finish the described method for synchronous of the embodiment of the invention.
Need to prove that the portable terminal described in the embodiments of the invention is described as an example of the dual-mode dual-card dual-standby terminal example, when relating to the bimodulus Multi-card multi-standby terminal, relative method for synchronous provided by the present invention still can be suitable for.Particularly, in this case, described multi-card mobile terminal comprises many (more than three or three) terminal cards, processes by the synchronous flow process of described the second terminal card of the embodiment of the invention successively when synchronous in that the other-end card except the first terminal card is done.Namely, in the bimodulus Multi-card multi-standby terminal, except the first terminal card, remaining terminal card all adopts the method such as the second terminal card as described in the embodiment of the invention to keep synchronously, the relative synchronous mode that namely keeps other all terminal cards and first terminal card, make the other-end card respectively resident with it and/or contiguous network cell keep synchronously and holding state.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize 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 does, all belong to the protection range of technical solution of the present invention according to technical spirit of the present invention.

Claims (19)

1. the method for synchronous of a multi-card mobile terminal, wherein, many cards comprise that at least standby at the first terminal card of first network residential quarter, is characterized in that described method for synchronous comprises the steps:
Determine the relative synchronizing information of the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card, described the second terminal card is the terminal card that is in holding state; Wherein, described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number; Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number; The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset that puts with respect to described first start bit of described the second original position 1
Based on the 3rd synchronizing information of the resident first network residential quarter of the relative synchronizing information of described the second terminal card and the described first terminal card that receives keep described the second terminal card and described second network residential quarter synchronously, wherein said the 3rd synchronizing information comprise that described first terminal card receives when keeping synchronous with described first network residential quarter the 3rd broadcast frame number and with the described the 3rd broadcast the 3rd original position of the corresponding frame of frame number;
Described based on described the second terminal card relative synchronizing information and the 3rd synchronizing information of the resident first network residential quarter of the described first terminal card that receives keep comprising synchronously of described the second terminal card and described second network residential quarter: broadcast frame number according to the 3rd, determine the 4th synchronizing information of described the second terminal card and described second network residential quarter with the side-play amount that the 3rd original position and described second original position of described the 3rd broadcasting frame number corresponding frame are put with respect to described first start bit, described the 4th synchronizing information comprises that the 4th broadcasts frame number, fourth beginning position of the corresponding frame of the 4th broadcasting frame number is with respect to the side-play amount of the 3rd original position of the corresponding frame of the 3rd broadcasting frame number;
Wherein, described first network residential quarter is the TD-SCDMA network cell, and described second network residential quarter is the GSM network cell;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12, then described the 4th broadcasting frame number G 2=(T 2-T 1) * L t/ L g+ G 1The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T 1) * L t-offset 1) mod (L g), wherein, G 1Be the second broadcasting frame number, L tBe the frame length of TD-SCDMA, L gFrame length for GSM;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ by more than 12, then described the 4th broadcasting frame number G 2=(T 2-T n) * L t/ L g+ G nThe 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T n) * L t-offset 1) mod (L g), T wherein nBe T 1The be separated by broadcasting frame number of TD-SCDMA frame of 12*N frame of frame, G nBe G 1The be separated by broadcasting frame number of GSM frame of 13*N frame of frame, L tBe the frame length of TD-SCDMA, L gBe the frame length of GSM, N=(T 2-T 1)/12, N is natural number;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ and equal 12*N, then described the 4th broadcasting frame number G 2=G 1+ 13*N, the 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=offset 1, wherein, G 1Be the second broadcasting frame number, N=(T 2-T 1)/12, N is natural number.
2. the method for synchronous of multi-card mobile terminal according to claim 1 is characterized in that, determines that the relative synchronizing information of described the second terminal card comprises the steps:
Obtain the first synchronizing information of the resident first network residential quarter of described first terminal card;
Utilize the gap of the paging cycle of described first terminal card that described the second terminal card resident network cell and adjacent area are searched for and measured, determine the second network residential quarter synchronous with described the second terminal card;
Obtain the second synchronizing information with the synchronous second network residential quarter of described the second terminal card;
Determine the relative synchronizing information of described the second terminal card according to the first synchronizing information of the resident first network residential quarter of described first terminal card and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
3. the method for synchronous of multi-card mobile terminal according to claim 2 is characterized in that,
Described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number;
Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number;
The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset that puts with respect to described first start bit of described the second original position 1
4. the method for synchronous of multi-card mobile terminal according to claim 1 and 2 is characterized in that, also comprises step: based on the variation of described the first synchronizing information and/or described the second synchronizing information, upgrade the relative synchronizing information of described the second terminal card.
5. the method for synchronous of multi-card mobile terminal according to claim 4 is characterized in that, based on the variation of described the first synchronizing information and/or described the second synchronizing information, the relative synchronizing information of upgrading described the second terminal card comprises:
Put the deviate Wei ⊿ offset that self adjusts when described first start bit 1The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ ⊿ offset 1
The deviate adjusted when described the second original position self Wei ⊿ offset 2The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ ⊿ offset 2
6. the method for synchronous of multi-card mobile terminal according to claim 5 is characterized in that, based on the variation of described the first synchronizing information and/or described the second synchronizing information, the relative synchronizing information of upgrading described the second terminal card also comprises:
If the side-play amount offset that described the second original position is put with respect to described first start bit 1' when exceeding the frame length of described second network residential quarter, side-play amount offset then 1"=offset 1'-frame length, and the second broadcasting frame number adds 1;
If described the second original position is put side-play amount offset with respect to described first start bit 1' be negative value, side-play amount offset then 1"=frame length+offset 1', and the second broadcasting frame number subtracts 1.
7. the method for synchronous of multi-card mobile terminal according to claim 1, it is characterized in that, also comprise step: judge whether synchronization failure of described the second terminal card, if described the second terminal card synchronization failure, then redefine the relative synchronizing information of described the second terminal card, and keep the synchronous of described the second terminal card and described second network residential quarter based on the relative synchronizing information of described the second terminal card.
8. the method for synchronous of multi-card mobile terminal according to claim 7 is characterized in that, the basis for estimation of described the second terminal card synchronization failure comprise following any:
1) decoding synchronous channel SCH surpasses the first threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card;
2) decode broadcast information BCCH surpasses the second threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card;
3) decoding paging information PCH surpasses the 3rd threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card.
9. the method for synchronous of multi-card mobile terminal according to claim 8 is characterized in that, described the first threshold value is that 3 times or 4 times, the second threshold value are that 3 times or 4 times, the 3rd threshold value are 3 times or 4 times.
10. the synchronizer of a multi-card mobile terminal, wherein, many cards comprise that at least standby at the first terminal card of first network residential quarter, is characterized in that described synchronizer comprises:
The information determining unit, it is used for determining the relative synchronizing information of the second terminal card, described relative synchronizing information be associated with the resident first network residential quarter of described first terminal card the first synchronizing information and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card, described the second terminal card is the terminal card that is in holding state; Wherein, described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number; Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number; The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset that puts with respect to described first start bit of described the second original position 1
Synchronous performance element, its be used for the relative synchronizing information of the second terminal card of determining based on described information determining unit and the 3rd synchronizing information of the first network residential quarter that the described first terminal card that receives is resident keep described the second terminal card and described second network residential quarter synchronously, wherein said the 3rd synchronizing information comprise that described first terminal card receives when keeping synchronous with described first network residential quarter the 3rd broadcast frame number and with the described the 3rd broadcast the 3rd original position of the corresponding frame of frame number;
Described synchronous performance element is used for according to the 3rd broadcasting frame number, determines that with the side-play amount that the 3rd original position and described second original position of the corresponding frame of described the 3rd broadcasting frame number are put with respect to described first start bit fourth beginning position that the 4th synchronizing information of described the second terminal card and described second network residential quarter, described the 4th synchronizing information comprise the 4th broadcasting frame number, the 4th broadcasting frame number correspondence frame is with respect to the 3rd side-play amount of broadcasting the 3rd original position of frame number correspondence frame;
Wherein, described first network residential quarter is the TD-SCDMA network cell, and described second network residential quarter is the GSM network cell;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ less than 12, then described the 4th broadcasting frame number G 2=(T 2-T 1) * L t/ L g+ G 1The 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T 1) * L t-offset 1) mod (L g), wherein, G 1Be the second broadcasting frame number, L tBe the frame length of TD-SCDMA, L gFrame length for GSM;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ by more than 12, then described the 4th broadcasting frame number G 2=(T 2-T n) * L t/ L g+ G nThe 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=L g-((T 2-T n) * L t-offset 1) mod (L g), T wherein nBe T 1The be separated by broadcasting frame number of TD-SCDMA frame of 12*N frame of frame, G nBe G 1The be separated by broadcasting frame number of GSM frame of 13*N frame of frame, L tBe the frame length of TD-SCDMA, L gBe the frame length of GSM, N=(T 2-T 1)/12, N is natural number;
If described the 3rd broadcasting frame number T 2With described the first broadcasting frame number T 1Differ and equal 12*N, then described the 4th broadcasting frame number G 2=G 1+ 13*N, the 4th broadcasting frame number G 2Fourth beginning position of corresponding frame is with respect to the 3rd broadcasting frame number T 2The side-play amount offset of the 3rd original position of corresponding frame 2=offset 1, wherein, G 1Be the second broadcasting frame number, N=(T 2-T 1)/12, N is natural number.
11. the synchronizer of multi-card mobile terminal according to claim 10 is characterized in that, described information determining unit comprises:
The first acquiring unit, it is used for obtaining the first synchronizing information of the resident first network residential quarter of described first terminal card;
The first determining unit, its gap for the paging cycle that utilizes described first terminal card is searched for and is measured described the second terminal card resident network cell and adjacent area, determines the second network residential quarter synchronous with described the second terminal card;
Second acquisition unit, it is used for obtaining the second synchronizing information with the synchronous second network residential quarter of described the second terminal card;
The second determining unit, it is used for determining the relative synchronizing information of described the second terminal card according to the first synchronizing information of the resident first network residential quarter of described first terminal card and with the second synchronizing information of the synchronous second network residential quarter of described the second terminal card.
12. the synchronizer of multi-card mobile terminal according to claim 11 is characterized in that,
Described the first synchronizing information comprises the first broadcasting frame number that described first terminal card receives when keeping synchronous with described first network residential quarter and puts with the first start bit of frame corresponding to described the first broadcasting frame number;
Described the second synchronizing information comprise the second broadcasting frame number that described the second terminal card receives when keeping synchronous with described second network residential quarter and with the second original position of frame corresponding to described the second broadcasting frame number;
The relative synchronizing information of described the second terminal card comprises described the first broadcasting frame number, the second broadcasting frame number, and the side-play amount offset that puts with respect to described first start bit of described the second original position 1
13. according to claim 10 or the synchronizer of 11 described portable terminals, it is characterized in that, also comprise information updating unit, it is used for the variation based on described the first synchronizing information and/or described the second synchronizing information, upgrades the relative synchronizing information of described the second terminal card.
14. the synchronizer of multi-card mobile terminal according to claim 13 is characterized in that, described information updating unit comprises:
The first updating block, it is used for putting the deviate Wei ⊿ offset that self adjusts when described first start bit 1The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ ⊿ offset 1
The second updating block, deviate that it is used for adjusting when described the second original position self Wei ⊿ offset 2The time, the side-play amount offset that puts with respect to described first start bit of described the second original position then 1'=offset 1+ ⊿ offset 2
15. the synchronizer of multi-card mobile terminal according to claim 14 is characterized in that, described information updating unit also comprises:
The first processing unit that is connected with the second updating block with described the first updating block respectively is if it is used for side-play amount offset that described the second original position is put with respect to described first start bit 1' when exceeding the frame length of described second network residential quarter, side-play amount offset then 1"=offset 1'-frame length, the second broadcasting frame number adds 1 simultaneously;
The second processing unit that is connected with the second updating block with described the first updating block is respectively put side-play amount offset if it is used for described the second original position with respect to described first start bit 1' be negative value, side-play amount offset then 1"=frame length+offset 1', the second broadcasting frame number subtracts 1 simultaneously.
16. the synchronizer of multi-card mobile terminal according to claim 10, it is characterized in that, also comprise respectively the 3rd processing unit that is connected with described synchronous performance element with described information determining unit, it is used for judging whether synchronization failure of described the second terminal card, if described the second terminal card synchronization failure, then control the relative synchronizing information that described information determining unit redefines described the second terminal card, and control described synchronous performance element based on the relative synchronizing information of described the second terminal card keep described the second terminal card and described second network residential quarter synchronously.
17. the synchronizer of multi-card mobile terminal according to claim 16 is characterized in that, the basis for estimation of described the second terminal card synchronization failure comprise following any:
1) decoding synchronous channel SCH surpasses the first threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card;
2) decode broadcast information BCCH surpasses the second threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card;
3) decoding paging information PCH surpasses the 3rd threshold value continuously if separate wrong number of times, then determines synchronization failure of described the second terminal card.
18. the synchronizer of multi-card mobile terminal according to claim 17 is characterized in that, described the first threshold value is that 3 times or 4 times, the second threshold value are that 3 times or 4 times, the 3rd threshold value are 3 times or 4 times.
19. multi-card mobile terminal that comprises each described synchronizer of claim 10 to 18.
CN2011101616642A 2011-06-15 2011-06-15 Multi-card mobile terminal and synchronization method and device thereof Active CN102361517B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101616642A CN102361517B (en) 2011-06-15 2011-06-15 Multi-card mobile terminal and synchronization method and device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101616642A CN102361517B (en) 2011-06-15 2011-06-15 Multi-card mobile terminal and synchronization method and device thereof

Publications (2)

Publication Number Publication Date
CN102361517A CN102361517A (en) 2012-02-22
CN102361517B true CN102361517B (en) 2013-03-27

Family

ID=45586769

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101616642A Active CN102361517B (en) 2011-06-15 2011-06-15 Multi-card mobile terminal and synchronization method and device thereof

Country Status (1)

Country Link
CN (1) CN102361517B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103796341B (en) * 2012-11-02 2017-04-26 展讯通信(天津)有限公司 Mobile terminal, mobile-terminal frame position determining method and device, and mobile-terminal frame reception method
CN102970735A (en) * 2012-11-09 2013-03-13 中兴通讯股份有限公司 Terminal and working method thereof
CN103856992B (en) * 2012-11-30 2017-04-26 展讯通信(天津)有限公司 Mobile terminal and synchronous tracking method and device
US9497705B2 (en) * 2013-10-07 2016-11-15 Qualcomm Incorporated System and methods for using wireless network correlations to acquire service on a multi-SIM device
CN106162875B (en) * 2015-04-16 2019-05-10 展讯通信（上海）有限公司 Communication means, device and equipment
CN107872840B (en) * 2016-09-26 2020-12-22 展讯通信（上海）有限公司 GSM cell synchronization method and device under LTE + GSM dual-card LTE packet switching and mobile terminal
CN109548134B (en) * 2017-07-28 2020-11-17 展讯通信（上海）有限公司 Multi-card mobile terminal and method, device and storage medium for synchronizing multi-card mobile terminal with network
CN112269831A (en) * 2020-10-27 2021-01-26 广州助蜂网络科技有限公司 High-performance mass data synchronization method and device
CN112954720B (en) * 2021-03-31 2022-10-28 北京紫光展锐通信技术有限公司 Frequency adjustment method, device and equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1774948A (en) * 2003-04-24 2006-05-17 日本电气株式会社 Method of time and frequency synchronization of multimode terminal
CN101047910A (en) * 2006-03-27 2007-10-03 上海宇梦通信科技有限公司 Method for two-mode synchronous in two-mode mobile phone
CN101908922A (en) * 2010-07-26 2010-12-08 展讯通信（上海）有限公司 Frequency offset correction method and device of multi-card mobile terminal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1774948A (en) * 2003-04-24 2006-05-17 日本电气株式会社 Method of time and frequency synchronization of multimode terminal
CN101047910A (en) * 2006-03-27 2007-10-03 上海宇梦通信科技有限公司 Method for two-mode synchronous in two-mode mobile phone
CN101908922A (en) * 2010-07-26 2010-12-08 展讯通信（上海）有限公司 Frequency offset correction method and device of multi-card mobile terminal

Also Published As

Publication number Publication date
CN102361517A (en) 2012-02-22

Similar Documents

Publication Publication Date Title
CN102361517B (en) Multi-card mobile terminal and synchronization method and device thereof
US8676253B2 (en) Method and device for ranking frequencies
US8630237B2 (en) Method of resolving reception conflicts for multi-card multi-standby mobile terminal
CN102907130B (en) Mobile terminal and service processing method thereof, and baseband processing chip
RU2443054C2 (en) Mobile station, base radio station, mobile communication system and method for transfer and reception of broadcast information
CN101932097B (en) Method and device for receiving paging message
CN102802240B (en) Multi-module mobile terminal and network selection method thereof
CN102573065B (en) Communication terminal and paging message receiving method and device thereof
CN102348257B (en) Terminal, and conflict processing method and device thereof
US20160338143A1 (en) Efficient discontinuous reception in a mobile network
CN101247596B (en) Single-base band single-radio frequency dual-SIM dual-standby communication terminal and communication method thereof
CN101217739A (en) A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding communication method
CN102231877A (en) Terminal, paging and receiving method thereof and apparatus thereof
CN101895968B (en) Method for mobile terminal to find network and mobile terminal
CN103582074A (en) Multimode mobile terminal and cell search method and device thereof
CN101908922B (en) Frequency offset correction method and device of multi-card mobile terminal
CN101977372A (en) Number switching method and system as well as intelligent card
US20130107776A1 (en) Optimized page matching
CN103546939A (en) Multi-channel wireless communication system cell searching method and terminal
US7929983B2 (en) Method and apparatus for neighbor cell synchronization
CN102457948A (en) Apparatus and method for undating slpid of a terminal operating in sleep mode in a broadband wireless communication system
CN101895969A (en) Mobile terminal and network searching method thereof
CN103906276A (en) Mobile terminal and message processing method and device thereof
CN101217741B (en) A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding synchronization method
CN103796341A (en) Mobile terminal, mobile-terminal frame position determining method and device, and mobile-terminal frame reception method

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20190314

Address after: 101399 Building 8-07, Ronghui Garden 6, Shunyi Airport Economic Core Area, Beijing

Patentee after: Xin Xin finance leasing (Beijing) Co.,Ltd.

Address before: 201203 Building 1, exhibition hall, 2288 lane, 2288 Chong, road, Zhangjiang hi tech park, Shanghai

Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd.

TR01 Transfer of patent right
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20120222

Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd.

Assignor: Xin Xin finance leasing (Beijing) Co.,Ltd.

Contract record no.: X2021110000008

Denomination of invention: A multi card mobile terminal and its synchronization method and device

Granted publication date: 20130327

License type: Exclusive License

Record date: 20210317

EE01 Entry into force of recordation of patent licensing contract
TR01 Transfer of patent right

Effective date of registration: 20221021

Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288

Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd.

Address before: 101399 Building 8-07, Ronghui Garden 6, Shunyi Airport Economic Core Area, Beijing

Patentee before: Xin Xin finance leasing (Beijing) Co.,Ltd.

TR01 Transfer of patent right