CN101217741A - A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding synchronization method - Google Patents
A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding synchronization method Download PDFInfo
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- CN101217741A CN101217741A CNA2008100325987A CN200810032598A CN101217741A CN 101217741 A CN101217741 A CN 101217741A CN A2008100325987 A CNA2008100325987 A CN A2008100325987A CN 200810032598 A CN200810032598 A CN 200810032598A CN 101217741 A CN101217741 A CN 101217741A
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Abstract
The embodiment of the invention discloses a single-baseband single radio frequency dual card dual standby communication terminal and the synchronous method thereof. The method comprises receiving service data, estimating an offset parameter of a service card and synchronizing a service card and a non-service card according to the offset parameter of the service card. The invention embodiment can achieve the synchronization of the dual cards when one card in the communication terminal is in a service communication state and the other card therein is in an idle state, thus ensuring the quality of service communication and normal operation of the subsequent services of the non-service card.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal and method for synchronous thereof.
Background technology
Along with the development of society, the interchange of people in the work life is day by day frequent.Meanwhile, the requirement of people to exchanging, more and more higher to the requirement of communication apparatus.For satisfying this requirement, the mobile phone business men has been released a kind of double card double standby mobile phone.Double card double standby mobile phone is provided with dual user identification (SubscriberIdentity Model, SIM) card.Two cards can be two SlM cards under the same network schemer, also can be two SIM cards under the heterogeneous networks pattern.
On May 4th, 2006 disclosed one piece of U.S. Patent application, publication number is 2006/0095600A1 number, has disclosed a kind of travelling carriage of bimodulus.Described bimodulus travelling carriage can be supported two kinds of different mobile communications networks, as GSM, CDMA.The bimodulus travelling carriage that this U.S. Patent application disclosed can set the SlM of travelling carriage automatically, and selects the corresponding driving pattern.But, this U.S. Patent application does not disclose, and when wherein a SlM sticked into industry affair communication, another SIM card in the travelling carriage was how non-service card keeps synchronously with network, and during the problems such as service card occurrence frequency skew that communicate, how service card is carried out synchronously.But this is for double-card mobile phone, is the problem that unavoidably needs solution.
In the frequently two cartoon letters systems of single base band injection, wherein one when being stuck in service communication, because long-time service communication, the temperature drift of crystal oscillator can cause the frequency shift (FS) of communicating terminal.In addition, be difficult to align if communicating terminal is in the time slot that mobile status also can cause non-service card, and cause non-service card to be in desynchronizing state with the base station.It is serious that this situation usually causes after the communication of main card winding-up secondary card to fall the net phenomenon.Simultaneously, this situation also can increase the mortality of system's subsequent operation, as increase Mobile-Originated Short Message (Mobile Originated SMS, MO) or mobile-terminated short message (Mobile TerminatedSMS, mortality MT).
In view of the foregoing, the embodiment of the invention proposes a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal and method for synchronous thereof.
Summary of the invention
The technical problem to be solved in the present invention is to propose a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal and method for synchronous thereof, and this communicating terminal and method for synchronous thereof can make the two of communicating terminal under the service communication state stick into row synchronously.
For addressing the above problem, a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal according to the present invention comprises receiver module, estimation module and synchronization module.Receiver module is used to receive business datum.The business datum that estimation module is used for receiving based on receiver module is estimated the offset parameter of service card.Synchronization module is used for synchronous described service card of offset parameter and the non-service card according to the described service card of estimation module estimation.
According to the method for synchronous of a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal of the present invention, this method comprises the reception business datum; Estimate the offset parameter of service card; And according to the offset parameter synchronous service card and the non-service card of service card.
Compared with prior art, the embodiment of the invention can be in communicating terminal card be in the service communication state, a card is under the situation of idle condition, finish two cards synchronously, to guarantee the quality of service communication and normally carrying out of non-service card follow-up business.
Description of drawings
Fig. 1 is the structural representation of a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal of the embodiment of the invention.
Fig. 2 is the flow chart of a kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal synchronization method of the embodiment of the invention.
Fig. 3 is the time slot map of the method for synchronous of embodiment of the invention single-base band single-radio frequency dual-SIM dual-standby communication terminal.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described.
For convenience of description, all (GlobalSystem For Mobile Communication, GSM) example that is applied as in describes embodiments of the invention in global system for mobile communications with it.Yet, other communication systems in the wireless telecommunications, as broadband CDMA system (Wide Code DivisionMultiple Access, WCDMA), CDMA 2000 (Code Division Multiple Access, CDMA2000), (Time Division-Synchronous CodeDivision Multiple Access TD-SCDMA) all can support single-base band single-radio frequency dual-SIM dual-standby communication terminal of the present invention and method for synchronous to TDS-CDMA system.
Figure 1 shows that embodiment of the invention single-base band single-radio frequency dual-SIM dual-standby communication terminal structure schematic diagram.A kind of single-base band single-radio frequency dual-SIM dual-standby communication terminal of the embodiment of the invention comprises receiver module 105, estimation module 107 and synchronization module 111.Receiver module 105 is used to receive business datum.Estimation module 107 is used for estimating based on the business datum that receiver module 105 receives the offset parameter of service card 101.Synchronization module 111 is used for synchronous described service card 101 of offset parameter and non-service card 103 according to the described service card 101 of estimation module 107 estimations.
As shown in Figure 1, communicating terminal 10 comprises service card 101 and non-service card 103.In an embodiment, service card 101 is a relative concept with non-service card 103.The communicating terminal card that is in the service communication state is a service card 101, and the communicating terminal card that is in idle condition is non-service card 103.
When service card 101 communicated, receiver module 105 can be used for receiving business datum.Because when service card 101 communicates, when communicating by letter especially for a long time, crystal oscillator (not shown) in the communicating terminal 10 can produce frequency shift (FS) owing to the factor of temperature, and then causes service card 101 and non-service card 103 all to produce parameter shift, thereby asynchrony phenomenon occurs.
Estimation module 107 is connected with receiver module 105, is used for estimating based on the business datum that receiver module 105 receives the offset parameter of service card 101.In an embodiment, the offset parameter of service card 101 comprises first frequency offset parameter and very first time offset parameter.Estimation module 107 receives the position of training sequence (Training Sequence) in the data and the difference of the physical location that protocol specification is stipulated by searching, estimates very first time offset parameter.When estimating the first frequency offset parameter, 107 pairs of data that receive of estimation module are carried out hard decision, with the data reconstruction that obtains, carry out the relevant phase deviation that obtains between the two with the data that receive again, and then the frequency shift (FS) of computing service card, obtain the first frequency offset parameter.
Estimation module 107 also is used for estimating according to the synchronizing signal of the non-service card 103 of receiver module 105 receptions the offset parameter of non-service card 103.Synchronization module 111 is further revised the non-service card 103 of adjustment according to the offset parameter of the non-service card 103 that estimation module 107 is estimated, further non-service card 103 is carried out simultaneous operation.In an embodiment, the offset parameter of non-service card 103 comprises the second frequency offset parameter and the second time migration parameter.Synchronization module 111 is used for according to the second frequency offset parameter non-service card being carried out further frequency correction, according to the second time migration parameter non-service card is carried out further time adjustment, to carry out simultaneous operation.
Be illustrated in figure 2 as synchronous ten thousand methods of embodiment of the invention single-base band single-radio frequency dual-SIM dual-standby communication terminal.As shown in the figure, this method comprises S301 in the present embodiment, receives business datum; S303, the offset parameter of estimation service card; And S305: according to the offset parameter synchronous service card and the non-service card of service card.
Figure 3 shows that the time slot diagram of the method for synchronous of embodiment of the invention single-base band single-radio frequency dual-SIM dual-standby communication terminal among Fig. 2.Among Fig. 3, T represents to be in the service communication state, and S represents to receive the SCH data.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, when communicating terminal 10 communicated, receiver module 105 received business datum, and estimation module 107 is estimated the offset parameter of service card 101 based on business datum.In an embodiment, the offset parameter of service card 101 comprises first frequency offset parameter and very first time offset parameter.Synchronization module 111 is according to the offset parameter synchronous service card 101 of service card 101.On Traffic Channel, the frequency of non-service card 103 need be according to the tracking of service card 101, and the variations in temperature of crystal oscillator also causes the parameter shift of non-service card 103.Therefore the offset parameter that calculates according to the business datum of service card 101 also can be used for the frequency shift (FS) and the time migration of tentatively proofreading and correct non-service card 103.Synchronization module 111 is according to the synchronous non-service card 103 of the offset parameter of service card.In an embodiment, synchronization module 111 carries out frequency correction according to the first frequency offset parameter to service card and non-service card, according to the very first time offset parameter service card and non-service card is carried out time adjustment, to carry out simultaneous operation.
Under the situation that communicating terminal 10 moves, the parameter shift of non-service card 103 not only will be considered the variations in temperature of crystal oscillator, also needs to consider Doppler effect.Be further synchronous non-service card 103, receiver module 105 receives the synchronizing signal of non-service card 103.Estimation module 107 is estimated the offset parameter of non-service card 103 based on synchronizing signal, according to the further synchronous non-service card 103 of the offset parameter of non-service card 103.In an embodiment, the offset parameter of non-service card 103 comprises the second frequency offset parameter and the second time migration parameter.Receiver module 105 when service card 101 communication, utilizes the mode of compact model or other instantaneous interruptions to receive the synchronizing signal of non-service card 103 at set intervals.In gsm system, receiver module 105 receives the SCH data of SCH channel.Estimation module 107 is according to the offset parameter of the non-service card 103 of SCH data estimation, and synchronization module 111 carries out simultaneous operation according to this offset parameter to non-service card 103.In an embodiment, synchronization module 111 carries out further frequency correction according to the second frequency offset parameter to non-service card, according to the second time migration parameter non-service card is carried out further time adjustment, to carry out simultaneous operation.
The embodiment of the invention can be in communicating terminal 10 card be in the service communication state, a card is under the situation of idle condition, finish two cards synchronously, to guarantee the quality of service communication and normally carrying out of non-service card 103 follow-up business.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. single-base band single-radio frequency dual-SIM dual-standby communication terminal, it is characterized in that: described communicating terminal comprises
Receiver module is used to receive the service card business datum;
Estimation module, the business datum that is used for receiving based on receiver module is estimated the offset parameter of service card;
Synchronization module is used for synchronous described service card of offset parameter and non-service card according to the described service card of estimation module estimation.
2. communicating terminal as claimed in claim 1 is characterized in that: described receiver module is further used for receiving the synchronizing signal of non-service card; Described estimation module is further used for estimating according to the synchronizing signal of the non-service card of receiver module reception the offset parameter of non-service card, and synchronization module is further used for according to the further synchronous non-service card of the offset parameter of the described non-service card of estimation module estimation.
3. communicating terminal as claimed in claim 2 is characterized in that: the offset parameter of described service card comprises first frequency offset parameter and very first time offset parameter; The offset parameter of described non-service card comprises the second frequency offset parameter and the second time migration parameter.
4. communicating terminal as claimed in claim 3 is characterized in that: described synchronization module is used for according to the first frequency offset parameter service card and non-service card being carried out frequency correction, according to the very first time offset parameter service card and non-service card is carried out time adjustment.
5. communicating terminal as claimed in claim 4 is characterized in that: described synchronization module also is used for according to the second frequency offset parameter non-service card being carried out further frequency correction, according to the second time migration parameter non-service card is carried out further time adjustment.
6. the method for synchronous of a single-base band single-radio frequency dual-SIM dual-standby communication terminal, it is characterized in that: described method comprises
Receive the service card business datum;
Estimate the offset parameter of service card based on described business datum;
According to synchronous described service card of the offset parameter of described service card and non-service card.
7. method for synchronous as claimed in claim 6, it is characterized in that: this method further comprises the synchronizing signal that receives non-service card, estimate the offset parameter of non-service card based on described synchronizing signal, according to the further synchronous non-service card of the offset parameter of described non-service card.
8. method for synchronous as claimed in claim 7 is characterized in that: first frequency offset parameter and very first time offset parameter are estimated in being operating as of the offset parameter of described estimation service card; The second frequency offset parameter and the second time migration parameter are estimated in being operating as of the offset parameter of the non-service card of described estimation.
9. method for synchronous as claimed in claim 8, it is characterized in that: being operating as according to the first frequency offset parameter of synchronous described service card of described offset parameter according to described service card and non-service card carried out frequency correction to service card and non-service card, according to the very first time offset parameter service card and non-service card carried out time adjustment.
10. method for synchronous as claimed in claim 9, it is characterized in that: further being operating as according to the second frequency offset parameter of synchronous non-service card of described offset parameter according to described non-service card carried out further frequency correction to non-service card, according to the second time migration parameter non-service card carried out further time adjustment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100325987A CN101217741B (en) | 2008-01-11 | 2008-01-11 | A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding synchronization method |
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| CN2008100325987A CN101217741B (en) | 2008-01-11 | 2008-01-11 | A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding synchronization method |
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| CN101217741A true CN101217741A (en) | 2008-07-09 |
| CN101217741B CN101217741B (en) | 2011-07-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102014466A (en) * | 2010-12-06 | 2011-04-13 | 展讯通信（上海）有限公司 | Synchronizing method and device for non-business card of multi-card and multi-standby mobile terminal |
| CN102938895A (en) * | 2011-08-15 | 2013-02-20 | 联发科技股份有限公司 | Wireless communication device and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9461684B2 (en) | 2014-07-17 | 2016-10-04 | Qualcomm Incorporated | Fast system recovery in multi-radio-access-technology devices |
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2008
- 2008-01-11 CN CN2008100325987A patent/CN101217741B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102014466A (en) * | 2010-12-06 | 2011-04-13 | 展讯通信（上海）有限公司 | Synchronizing method and device for non-business card of multi-card and multi-standby mobile terminal |
| CN102014466B (en) * | 2010-12-06 | 2013-07-10 | 展讯通信（上海）有限公司 | Synchronizing method and device for non-business card of multi-card and multi-standby mobile terminal |
| US8780791B2 (en) | 2010-12-06 | 2014-07-15 | Spreadtrum Communications (Shanghai) Co., Ltd. | Method and apparatus for synchronizing card without traffic in multi-card multi-standby mobile terminal |
| CN102938895A (en) * | 2011-08-15 | 2013-02-20 | 联发科技股份有限公司 | Wireless communication device and method |
| CN102938895B (en) * | 2011-08-15 | 2016-01-27 | 联发科技股份有限公司 | Radio communication device and method |
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| CN101217741B (en) | 2011-07-13 |
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