CN101217738B - Dual-card dual-standby mobile telephone - Google Patents
Dual-card dual-standby mobile telephone Download PDFInfo
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- CN101217738B CN101217738B CN2008100325949A CN200810032594A CN101217738B CN 101217738 B CN101217738 B CN 101217738B CN 2008100325949 A CN2008100325949 A CN 2008100325949A CN 200810032594 A CN200810032594 A CN 200810032594A CN 101217738 B CN101217738 B CN 101217738B
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Abstract
The invention discloses a dual SIM card and dual standby mobile phone, comprising an antenna, an RF module, a baseband process module, a power module, a display device, and two SIM card slots and a protocol unit; the dual SIM card and dual standby mobile phone comprises two sets of GSM protocol stack units and a set of GPRS protocol stack units; the two sets of GSM protocol stack units of the dual SIM card and dual standby mobile phone are provided with a third layer independent software and a fourth layer independent software which respectively serve the two SIM cards; the GPRS protocol stack units of the dual SIM card and dual standby mobile phone are provided with the third layer independent software and the fourth layer independent software; furthermore, the GPRS protocol stack units are provided with a first layer, a second layer and an application layer software which are shared with the two sets of GSM protocol stack units. The dual card service is realized by one set of GPRS protocol stack units of the invention, and the unit complexity of the dual SIM card dual standby mobile phone and the control difficulty of GPRS protocol stack units are greatly reduced.
Description
Technical field
The present invention relates to moving communicating field, especially a kind of double card double standby mobile phone that reduces software complexity.
Background technology
At present, use global system for mobile communications (Global System for Mobile; GSM) user is by Subscriber Identity Module (Subscriber Identification Module Card; Hereinafter to be referred as SIM card) insert mobile phone after, the user can obtain network services.By SIM card, the user is become the registered user of network, and the various services that enjoy network provides, mobile phone major part on the market is single SIM card at present, have more than one SIM card but have many consumers, often need to change card and just can use, quite inconvenience.
Under the common driving of technology, market and wireless mobile applied business, the wireless mobile communications industry development is rapid, and mobile communication product has become the necessary article of people's routine work, life.Along with number of mobile phone users constantly increases, popularity rate is also more and more higher, and it is also more and more that user has the situation of SIM card of two above portable communication devices simultaneously.For example some need the crowd of frequent two places work, for avoiding expensive roaming in other places expense, can respectively have the SIM card on anticipatory remark ground usually in two places, use different SIM card in different cities.But frequent replacing SIM card or carry two mobile phones all very the trouble.Have at present mobile phone businessman to develop two technology of blocking two-door number, another SIM card is not contained on the cell phone mainboard, but is contained on the battery yet.When the energising of utilization battery, outage, voltage boost, decompression clock pulse are leapt high and are hanged down the principle that changes, and jump the choosing service between two SIM cards.Therefore, the user changes the second network at needs into from the first network, promptly jumps when selecting the identification card service, and shutdown earlier, and start again in ten seconds because the relation that voltage changes will force the electric current jumper connection to another SIM card, reach the purpose of changing the card number of changing.But this mode that is installed on the battery can cause power consumption too much and the surface of the SIM card that is easy to wear and tear, and handoff procedure is also inconvenient.
Chinese patent is announced CN1185847C number and has been disclosed a kind of dual-card intelligent mobile phone.It controls and changes the data that comprised in two Subscriber Identity Modules by the little processing and control element (PCE) (MCU) on the utilization mobile phone, just can select to use any SIM card by restarting of mobile phone.Said method needn't the user manually change the exchange that card just can be realized double SIM card, has made things convenient for two card users largely.Yet above-mentioned technology still needs to close mobile phone and restarts mobile phone again when switching SIM card, very inconvenient for the user like this.
Chinese patent is announced CN2411633 number and has been disclosed another kind of double-card mobile phone, comprise that two overlap independently radio frequency part, logical gate, casing, the SIM card deck of mobile phone, connect with audio-frequency unit, display unit, the keyboard shared by the independent sector of a transducer with two cover mobile phones.Can realize a machine even numbers by transducer, satisfy the requirement that people need use even numbers.But this double-card mobile phone overlaps independently radio frequency part and logical gate because of having two, thereby cost is higher, and price is more expensive.
U.S. Patent Publication has disclosed a kind of double card double standby mobile phone US2006/0234693A1 number.This mobile phone can reach the mutual switching of two cards at open state, and does not need shutdown, does not more need manually to change card.But this mobile phone also needs two cover baseband chips and two cover RF systems to come corresponding two SIM cards respectively, and the cost of mobile phone is risen and the volume increase.
Industry also has the design single chip dual-card dual-standby mobile telephone, and it can connect two cover radio systems by a cover baseband chip and come corresponding two SIM cards respectively, thereby reaches dual-card dual-standby.Yet, this single baseband chip mobile phone uses single baseband chip control and handles the work of two S IM cards, that is to say that single baseband chip handles two cover gsm protocol stack cells and two cover GPRS protocol stack unit simultaneously, very high to the requirement of software, the complexity of software is risen.
Therefore, be necessary to develop a kind of single chip dual-card dual-standby mobile telephone that reduces software complexity.
Summary of the invention
Technical problem to be solved by this invention is effectively to reduce the software complexity of double card double standby mobile phone.
The present invention has disclosed a kind of double card double standby mobile phone that reduces the unit complexity, and it comprises:
A kind of double card double standby mobile phone, comprise baseband processing chip, electronic switch and two sim card slots, the SIM card interface of described baseband processing chip connects described two sim card slots by described electronic switch, and the sheet selected control system interface of described baseband processing chip is realized the SIM card one that is installed on described two sim card slots and the selection of SIM card two by described electronic switch;
Described baseband processing chip comprises two cover gsm protocol stack cells and a cover GPRS protocol stack unit,
Described two cover gsm protocol stack cells have independently the 3rd layer and the 4th layer of software of serving two SIM cards respectively, and the 3rd layer of SIM card and the network signal of independently finishing separately with the 4th layer of software of described two cover gsm protocol stack cells are handled;
Described GPRS protocol stack unit has independently the 3rd layer and the 4th layer of software, and described GPRS protocol stack unit has and the 1st layer, the 2nd layer shared and application layer software of described two cover gsm protocol stack cells;
Described double card double standby mobile phone is when SIM card one is carried out gprs service, if SIM card two has telephone service to come in, then end the gprs service of SIM card one earlier, and the telephone service of SIM card two is received into, after the telephone service of SIM card two finishes, proceed the gprs service of SIM card one again; When SIM card one when carrying out gprs service, if SIM card two also has new gprs service, then be in charge of the use of control GPRS by application layer, after the gprs service of SIM card one finishes, begin to carry out the GRPS business of SIM card two again.
Compare and prior art, single chip double card list provided by the invention treats that mobile phone passes through the gprs service that two cards can be realized in a cover GPRS protocol stack unit, largely reduced the control difficulty of software complexity and GPRS unit, thus the complexity that can effectively reduce the double card double standby mobile phone design and realize.
Description of drawings
Fig. 1 is a double card double standby mobile phone structured flowchart of the present invention;
Fig. 2 is a protocol stack block diagram of the present invention.
Embodiment
Double card double standby mobile phone of the present invention is referring to the hardware block diagram of Fig. 1, comprise other peripheral hardwares such as antenna, radio-frequency module, baseband processing chip, two sim card slots and display unit, baseband processing chip SIM card interface connects sim card slot by electronic switching circuit, and connects the selection of electronic switching circuit realization to SIM card by sheet selected control system interface.
The switching of electronic switch control SIM card, between transfer period, electronic switch just disconnects wherein two pins of I/O, CLK of a SIM card, and connects two pins of I/O, CLK of an other SIM card simultaneously, and the VSIM of SIM card, RST, GND, VPP does not disconnect during switching SIM card, so, during switching SIM card, the SIM card that just is disconnected can not be carried out read-write operation, can read and write this SIM card again after waiting switchback.
When handling two card business, be the method for operation of the preemptive type of business-driven, what specifically seize is I/O and two hardware resources of CLK of SIM, by the switching of electronic switch according to business demand control SIM card.
Visit to SIM card is driven by concrete business, and business comprises read-write SIM file and carry out SIM authentication etc. that arbitrary calorie requirement work then electronic switch is cut over earlier, operates then.If two cards will be operated simultaneously, then control the alternative of assurance to two card visits by software, wait one to block the operation of carrying out another card after operation is finished again.
Because it is sporadic that the signal that receives from network all has, it is feasible therefore can carrying out Signal Processing on same hardware.If conflict then can priority treatment receive earlier.The processing logic of single chip double card with the logical construction difference of two cover chips is: conflicting on if there is no signal sends and receives, then two cards all handles, if the conflict on life period and the hardware resource, the then priority treatment request of arrival earlier, then delay processing (as the visit of SIM card) for what can delay processing, for delaying processing, discard request (as receiving the network signal on the assigned timeslot) then.
Software protocol stack block diagram of the present invention is seen accompanying drawing 2, and it comprises L1 physical layer, L2 data link layer, L3 network layer, L4 transport layer and application layer.The L2 data link layer is adaptation layer.Two shared L1 physical layers of SIM card and L2 data link layer and application layer, but have independently L3 network layer and L4 transport layer separately, the mobile phone signal that can finish is separately handled.The L3 network layer is the core of gsm protocol, comprises RRM sublayer (RR), mobile management sublayer (MM), connection management sublayer (CM).The CM sublayer has the control of calling (CC), supplementary service (SS) and short message management entities such as (SMS) again.SIM card Business Processing is so separately separately carried out, and both sharing system resources are when system resource clashes, according to the processing that conflicts of the priority level of business.
As can be seen from Figure 2, described double card double standby mobile phone comprises two cover gsm protocol stack cells and a cover GPRS protocol stack unit.The protocol stack unit can be realized by the mode of software, hardware or firmware.Because the gsm service real-time requires high, so will come the gsm service of respectively corresponding two SIM card by two cover gsm protocol stack cells, can not lose the gsm service that carries out simultaneously like this and reach two effects for the treatment of, and the requirement of gprs service real-time is lower, therefore can come work by a shared cover GPRS protocol stack unit, hereinafter will be described in detail.
Two cover gsm protocol stack cells of double card double standby mobile phone have independently the 3rd layer (network layer) and the 4th layer of (transport layer) software of serving two SIM cards respectively, shared the 1st layer (physical layer) of two cover gsm protocol stack cells of double card double standby mobile phone, the 2nd layer of (data link layer) and application layer software.Described GPRS protocol stack unit has independently the 3rd layer and the 4th layer of software, GPRS protocol stack unit and two shared the 1st layer, the 2nd layer of cover gsm protocol stack cell and application layer softwares.When SIM card one when carrying out gprs service, if another one SIM card two has telephone service to come in, because telephone service priority ratio gprs service height, then system ends the gprs service of SIM card one earlier, but the telephone service of SIM card two is received into, after the telephone service of SIM card two finishes, proceed the gprs service of SIM card one again.When SIM card one when carrying out gprs service, if SIM card two also has gprs service, and, then be in charge of the use of control GPRS by application layer because the gprs service real-time is less demanding, after the gprs service of SIM card one finishes, begin to carry out the GRPS business of SIM card two again.When SIM card one when carrying out telephone service, if SIM card two has gprs service to receive, then allow the gprs service of SIM card two be in wait state earlier, after the telephone service of SIM card one finishes, begin the gprs service of SIM card two again.So, only with the gprs service that can realize double SIM card once cover GPRS protocol stack, reduced the control difficulty of software complexity and GPRS unit to a great extent.
Though, more than preferred embodiment of the present invention is described, but foregoing description only is preferred embodiment of the present invention, but not to the restriction of interest field of the present invention, under the creation spirit that does not deviate from the present invention, the present invention can adopt numerous embodiments, and the equivalence that the general skill personage of all this areas does according to spirit of the present invention changes or modifies, and all should be contained by claim of the present invention.
Claims (4)
1. double card double standby mobile phone, it is characterized in that, comprise baseband processing chip, electronic switch and two sim card slots, the SIM card interface of described baseband processing chip connects described two sim card slots by described electronic switch, and the sheet selected control system interface of described baseband processing chip is realized the SIM card one that is installed on described two sim card slots and the selection of SIM card two by described electronic switch;
Described baseband processing chip comprises two cover gsm protocol stack cells and a cover GPRS protocol stack unit, described two cover gsm protocol stack cells have independently the 3rd layer and the 4th layer of software of serving two SI M cards respectively, and the 3rd layer of SIM card and the network signal of independently finishing separately with the 4th layer of software of described two cover gsm protocol stack cells are handled;
Described GPRS protocol stack unit has independently the 3rd layer and the 4th layer of software, and described GPRS protocol stack unit has and the 1st layer, the 2nd layer shared and application layer software of described two cover gsm protocol stack cells;
Described double card double standby mobile phone is when SIM card one is carried out gprs service, if SIM card two has telephone service to come in, then end the gprs service of SIM card one earlier, and the telephone service of SIM card two is received into, after the telephone service of SIM card two finishes, proceed the gprs service of SIM card one again; When SIM card one when carrying out gprs service, if SIM card two also has new gprs service, then be in charge of the use of control GPRS by application layer, after the gprs service of SIM card one finishes, begin to carry out the GRPS business of SIM card two again.
2. a kind of double card double standby mobile phone as claimed in claim 1 is characterized in that: described double card double standby mobile phone is receiving when professional if conflict, and then priority treatment receives earlier.
3. a kind of double card double standby mobile phone as claimed in claim 1 is characterized in that: described double card double standby mobile phone if resource contention then handle according to priority level.
4. a kind of double card double standby mobile phone as claimed in claim 1 is characterized in that: when SIM card is switched, only switch two pins of I/O, CLK of SIM card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100325949A CN101217738B (en) | 2008-01-11 | 2008-01-11 | Dual-card dual-standby mobile telephone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100325949A CN101217738B (en) | 2008-01-11 | 2008-01-11 | Dual-card dual-standby mobile telephone |
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| CN101217738A CN101217738A (en) | 2008-07-09 |
| CN101217738B true CN101217738B (en) | 2011-01-26 |
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Families Citing this family (11)
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| US9565715B2 (en) | 2010-05-13 | 2017-02-07 | Mediatek Inc. | Apparatuses and methods for coordinating operations between circuit switched (CS) and packet switched (PS) services with different subscriber identity cards, and machine-readable storage medium |
| CN102014484B (en) * | 2010-12-01 | 2015-05-13 | 中兴通讯股份有限公司 | Method for realizing call and registration of dual-card double standby terminal and dual-card double standby terminal |
| EP2461639B1 (en) * | 2010-12-01 | 2017-02-08 | OCT Circuit Technologies International Limited | Multi SIM modem management |
| CN103379468A (en) * | 2012-04-27 | 2013-10-30 | 马维尔国际有限公司 | Single transceiver DSDS terminal and reception method of the terminal |
| CN102857903B (en) * | 2012-09-07 | 2015-07-01 | 乐蛙科技（上海）有限公司 | Intelligent SIM (subscriber identity module) switching method of double-card cellphone |
| CN103687084B (en) * | 2012-09-26 | 2016-12-21 | 展讯通信（上海）有限公司 | Mobile terminal and communication configuration method thereof |
| CN104113937B (en) * | 2014-07-30 | 2018-06-05 | 中国联合网络通信集团有限公司 | The time-multiplexed method, apparatus of radio frequency resource and terminal in a kind of terminal |
| CN105554884A (en) * | 2015-12-10 | 2016-05-04 | 小米科技有限责任公司 | Method and device for paging response |
| CN111954214B (en) * | 2019-05-16 | 2023-11-21 | 联发科技股份有限公司 | Communication method and communication device |
| US20220322134A1 (en) * | 2019-06-25 | 2022-10-06 | Xiaomi Communications Co., Ltd. | Method and apparatus for determining radio resource |
| CN111865345B (en) * | 2020-08-10 | 2022-08-30 | 锐迪科创微电子（北京）有限公司 | Terminal device and chip |
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| CN2420733Y (en) * | 1999-11-15 | 2001-02-21 | 港华顾问有限公司 | Cell assembly of mobilephone |
| CN2563871Y (en) * | 2002-09-23 | 2003-07-30 | 彭振华 | Single set multiple card intercommunication device for mobile phone |
| CN101072441A (en) * | 2007-04-20 | 2007-11-14 | 中国移动通信集团公司 | Calling information processing method and device based on dual-card dual-standby service |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2420733Y (en) * | 1999-11-15 | 2001-02-21 | 港华顾问有限公司 | Cell assembly of mobilephone |
| CN2563871Y (en) * | 2002-09-23 | 2003-07-30 | 彭振华 | Single set multiple card intercommunication device for mobile phone |
| CN101072441A (en) * | 2007-04-20 | 2007-11-14 | 中国移动通信集团公司 | Calling information processing method and device based on dual-card dual-standby service |
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