CN101217743A - An optimized method for network searching of dual-card mobile telephone - Google Patents
An optimized method for network searching of dual-card mobile telephone Download PDFInfo
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- CN101217743A CN101217743A CNA2008100326000A CN200810032600A CN101217743A CN 101217743 A CN101217743 A CN 101217743A CN A2008100326000 A CNA2008100326000 A CN A2008100326000A CN 200810032600 A CN200810032600 A CN 200810032600A CN 101217743 A CN101217743 A CN 101217743A
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a dual card network searching optimization method, which is characterized in that one SIM card in a mobile phone searches the network firstly and records the network searching result; when sends out a network searching request, the other SIM card is accessed into the network by directly reading the record, thus reducing the network search of the dual card mobile phone once, thereby reducing the electric consumption of the battery and shortening the network searching time to a great extent.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to the optimized method for network searching of single-chip dual-SIM dual-standby mobile phone.
Background technology
At present, use global system for mobile communications (Global System for Mobile; GSM) user is by Subscriber Identity Module (Subscriber ldentification 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 mobile phone user's number 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 mobile 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 switch method for mobile phone.The data that comprised in two Subscriber Identity Modules are controlled and changed to this method 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.
U.S. Patent Publication has disclosed a kind of double-card dual-standby mobile phone for 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 needs two cover baseband chips and two cover RF systems to come corresponding two SIM cards respectively, and the cost rising and the volume of mobile phone are increased.
Industry also has design single-chip dual-SIM dual-standby mobile phone, 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 it generally is after a card finds network that this single baseband chip two cards in mobile phones is looked for net, and another card is looked for network again, and like this, not only time to find network is long after the start, and waste battery of mobile telephone electric weight.
Therefore, be necessary to develop a kind of technology that single baseband chip double-card dual-standby mobile phone is looked for net of optimizing.
Summary of the invention
Technical problem to be solved by this invention is effectively to solve that the single chip double card list treats mobile phone looks for the net problem.
The present invention has disclosed a kind of optimized method for network searching of dual-card mobile telephone, and it may further comprise the steps:
Step 1 provides first Subscriber Identity Module and second Subscriber Identity Module, and is installed in two identification card slots on this mobile phone;
Step 2 first Subscriber Identity Module begins to look for net, sends the full range scan request to physical layer;
Step 3 physical layer is reported the result the back to radio resource report full range scanning result;
Step 4 radio resource proposes base station identity code decoding request to physical layer, receive the base station identity code decoded result of physical layer, to radio resource report base station identity code decoded result, radio resource begins receiving system message subsequently, as after receiving required system message, it is persistent district, carry out network registry, if non-required frequency of current frequency or system message can't receive, then forward next frequency to and proceed the decoding of base station identity code, up to finding suitable base station frequency point that can be resident, and resident, carry out network registry;
Step 5 second Subscriber Identity Module begins to look for net;
Step 6 adaptation layer judges whether to send out full range scanning, if can send out full range scanning, then enters next step, if can not send out full range scanning, then carries out the full range scan request again after the time-delay;
Step 7 judges whether there is effective scanning result in the system, if any, then to the current effective result of radio resource report, and repeating step 4; As do not have the effective scanning result, then enter next step;
Step 8 is sent out the full range scan request to physical layer, after physical layer is reported the result, to radio resource report full range scanning result.
Step 9 repeating step 4 makes second Subscriber Identity Module carry out network registry.
Compare and prior art, single chip double card list provided by the invention treats that two cards in mobile phones looks for Wondertek to arrive largely and optimize, and can save battery electric quantity and shorten time to find network.
Description of drawings
Fig. 1 is the applied mobile phone of optimized method for network searching of dual-card mobile telephone of the present invention.
Fig. 2 is the system module figure of the applied mobile phone of optimized method for network searching of dual-card mobile telephone of the present invention.
Fig. 3 is the flow chart of optimized method for network searching of dual-card mobile telephone of the present invention.
Embodiment
The present invention is a kind of single-chip dual-SIM dual-standby mobile phone optimized method for network searching.Please refer to shown in Figure 1ly, it is the applied a kind of double-card mobile telephone 10 of optimized method for network searching of the present invention.This mobile phone 10 has two SIM card slots, and it is separately installed with SIM card 1 and SIM card 2 12.
Please refer to shown in Figure 2ly, it is the module map of mobile phone 10.SIM card interface that this mobile phone 10 comprises baseband processing chip, be connected with baseband processing chip and sheet selected control system, simultaneously be connected in SIM card interface and sheet selected control system electronic switch, be connected in parallel in electronic switch two SIM card slots (SIM card 1 and SIM card 2 12 are installed respectively), be connected in display, keyboard, radio-frequency module, power supply, exterior storage medium and other peripheral hardwares of baseband processing chip and be connected in the antenna of radio-frequency module.Can control electronic switch by sheet selected control system and select any one SIM card work.
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, being business-driven, is the method for operation of preemptive type, and 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 the request of two cards is all handled, 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.
Single-chip dual-SIM dual-standby mobile phone 10 is in when start, or when losing network and look for network, the situation that SIM card 1 and SIM card 2 12 repeat to look for network can occur, repeats to look for network can waste the energy content of battery of mobile phone, and loses time.Optimized method for network searching of the present invention can make the single-chip dual-SIM dual-standby mobile phone therein a SIM card look for net successfully after, and second SIM card need not be looked for network again, but the full range scanning result when directly adopting first SIM card of system log (SYSLOG) to look for net.Like this, not only save battery of mobile telephone electric weight (SIM card is looked for very consuming cells electric weight of net), and saved mobile phone time to find network.
Please refer to shown in Figure 3ly, it is a single-chip dual-SIM dual-standby mobile phone optimized method for network searching flow chart of the present invention.It comprises following steps: step 1, SIM card 1 begin to look for net (SIM card 1 is main SIM card in the present embodiment), send the full range scan request to physical layer; Step 2, physical layer are reported the result to adaptation layer, then to radio resource (RR) layer report full range scanning result, first Subscriber Identity Module point sweep time that system log (SYSLOG) is current; Step 3, to physical layer base station identity code decoding request (BSICDECODE REQ) is proposed, receive the base station identity code decoded result (BSIC DECODECNF) of physical layer, to RR layer report base station identity code decoded result, and separate system message, as receive that system message then reports to RR, receive essential system message after, persistent district carries out network registry; Step 4, SIM card 2 12 begins to look for net; Step 5, adaptation layer judge whether to send out full range scanning, if can send out full range scanning, then enter next step, if can not send out full range scanning, then carry out the full range scan request again after the time-delay; Judge whether there is effective scanning result in the system, if any, then to the current effective result of RR report, and repeating step 3; As do not have the effective scanning result, then enter next step; Step 8 is sent out the full range scan request to physical layer, after physical layer is reported the result, to RR layer report full range scanning result, writes down the time point of current second Subscriber Identity Module scanning; Step 9, repeating step 4 makes SIM card two carry out network registry.
If SIM card 2 12 does not have effective scanning result to exist in the system when sending full range scanning, then system will write down the scanning result of second Subscriber Identity Module.When SIM card 1 is sent full range scanning when looking for the net request, system will directly give SIM card one 11 systems to the current effective scanning result of RR report, SIM card one 11 systems will look for net no longer again, but the system message of directly carrying out SIM card 1 receives, and after receiving essential system message, carry out network registry.
Because use the user of single-chip dual-SIM dual-standby mobile phone to start shooting when taking bullet train probably or the searching network, mobile phone can change network environment at short notice along with the high speed of train is advanced at this moment.If in this case, SIM card 1 is noted the network that scans, after spending 20 seconds, even the longer time, SIM card 2 12 just begins to send the net request of looking for, at this moment, change has taken place in network environment probably, one 11 writing scans of SIM card to network may be away from and can not use, send when looking for the net request in SIM card like this, just can not be directly to the current record result of RR report, because this record result probably can not normal use.For addressing this is that, we can design an electronic timer, be a special time writing time of timer, described special time is meant a time period, in this time period, the residing network environment of mobile phone can not change, and having crossed should be after the time period, and the residing network environment of mobile phone can change.Generally speaking, be exactly on bullet train, the variation of matter can not take place in network environment in 20 seconds, and therefore, the special time in the present embodiment is set to 20 seconds, and certainly, in other embodiments, this special time can be provided with because of concrete condition.Send when SIM card 2 12 and to look for when request net, system judges that earlier this request sends time gap SIM card one and whether write down effective scanning result time above 20 seconds, as not having above 20 seconds, then can be directly to the current record result of RR report, SIM card 2 12 can directly insert the network of SIM card one 11 records, because the change of the matter of network environment generally can not take place in 20 seconds; If it is to put later after 20 seconds the sweep time of writing down in SIM card 1 that the full range that SIM card 2 12 is sent is looked for the net request, then system will judge earlier whether the networking environment changes, do not change as network environment, then SIM card 2 12 is sent the effective scanning result who looks for the direct SIM card 1 that exists in net request back in RR layer reporting system, if network environment changes, then putting zero clearing the sweep time of SIM card 1 record lays equal stress on and newly begins full range scanning and look for net, SIM card 1 such as SIM card 2 12 find behind the network the more directly record of reading SIM card 1, perhaps, after judging that network environment changes, then SIM card 2 12 is directly sent the net request of looking for, and record SIM card 2 12 look for anastomose fruit, SIM card 1 reads this result again.
Equally, be to put in 20 seconds later the sweep time of writing down if the full range that SIM card 1 is sent is looked for the net request in SIM card 2 12, then SIM card 1 is sent the effective scanning result who looks for the direct SIM card 2 12 that exists in net request back in RR layer reporting system.If it is to put later after 20 seconds the sweep time of writing down in SIM card 2 12 that the full range that SIM card 1 is sent is looked for the net request, then system judges whether the networking environment changes, do not change as network environment, then SIM card 1 is sent the effective scanning result who looks for the direct SIM card 2 12 that exists in net request back in RR layer reporting system; If network environment changes, then putting zero clearing the sweep time of SIM card 2 12 record lays equal stress on and newly begins full range scanning and look for net, SIM card 2 12 such as SIM card 1 find behind the network the more directly record of reading SIM card 2 12, perhaps, after judging that network environment changes, then SIM card 1 is directly sent the net request of looking for, and record SIM card 1 look for the anastomose fruit, SIM card 2 12 reads this result again.
By above-mentioned optimized method for network searching, the single-chip dual-SIM dual-standby mobile phone can effectively shorten time to find network, generally look for net will shorten 4-5 second respectively, and can effectively save the battery of mobile telephone electric weight, because mobile phone is being looked for unusual consuming cells electric weight of when net than two cards.
Need to prove that above-mentioned SIM card 1 and SIM card 2 12 can be to use a kind of with in the lower network: GSM, CDMA, CDMA2000, PHS, WCDMA, TD-SCDMA, WIMAX.But the present invention is not limited to above network.But because the present invention is applicable to that only having two cards that overlap a radio system and a cover antenna singly treats mobile phone 10, therefore, above-mentioned SIM card 1 and SIM card 2 12 can only be applied to above-mentioned identical standard network simultaneously.
Need to prove that SIM card 1 can belong to identical operator with SIM card 2 12, such as all being to belong to China Mobile, but also can belong to different operators, belong to China Mobile such as SIM card 1, and SIM card 2 12 belongs to CHINAUNICOM.As long as SIM card 1 and SIM card 2 12 are applied to the network of identical standard, mobile phone 10 just can reach dual-card intelligent handoff functionality of the present invention.
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 (16)
1. two cards in mobile phones optimized method for network searching, it is characterized in that: described optimized method for network searching comprises the following steps:
Step 1 provides first Subscriber Identity Module and second Subscriber Identity Module, and is installed in two identification card slots on this mobile phone;
Step 2 first Subscriber Identity Module begins to look for net, sends the full range scan request to physical layer;
Step 3 physical layer is reported the result the back to radio resource report full range scanning result;
Step 4 radio resource proposes base station identity code decoding request to physical layer, receive the base station identity code decoded result of physical layer, to radio resource report base station identity code decoded result, radio resource begins receiving system message subsequently, as after receiving required system message, it is persistent district, carry out network registry, if non-required frequency of current frequency or system message can't receive, then forward next frequency to and proceed the decoding of base station identity code, up to finding suitable base station frequency point that can be resident, and resident, carry out network registry;
Step 5 second Subscriber Identity Module begins to look for net;
Step 6 adaptation layer judges whether to send out full range scanning, if can send out full range scanning, then enters next step, if can not send out full range scanning, then carries out the full range scan request again after the time-delay;
Step 7 judges whether there is effective scanning result in the system, if any, then to the current effective result of radio resource report, and repeating step 4; As do not have the effective scanning result, then enter next step;
Step 8 is sent out the full range scan request to physical layer, after physical layer is reported the result, to radio resource report full range scanning result.
Step 9 repeating step 4 makes second Subscriber Identity Module carry out network registry.
2. two cards in mobile phones optimized method for network searching according to claim 1 is characterized in that: do not have effective scanning result to exist if second User Recognition is stuck in when sending full range scanning in the system, then system will write down the scanning result of second Subscriber Identity Module.
3. two cards in mobile phones optimized method for network searching according to claim 2 is characterized in that: when first Subscriber Identity Module sends full range scanning when looking for the net request, adaptation layer will be directly to the current effective scanning result of radio resource reporting system record.
4. two cards in mobile phones optimized method for network searching according to claim 1 is characterized in that: in the described step 3 when physical layer behind radio resource report full range scanning result, first Subscriber Identity Module point sweep time that system log (SYSLOG) is current.
5. two cards in mobile phones optimized method for network searching according to claim 4, it is characterized in that: the full range that described second Subscriber Identity Module sends is looked for net request if at first Subscriber Identity Module write down the sweep time of point later in the special time, and then second Subscriber Identity Module sends the effective scanning result who looks for first Subscriber Identity Module that net request back directly writes down in the radio resource reporting system.
6. two cards in mobile phones optimized method for network searching according to claim 4, it is characterized in that: the full range scan request that described second Subscriber Identity Module sends is if at the sweep time that first Subscriber Identity Module write down of point later behind the special time, then system judges whether the networking environment changes, do not change as network environment, then second Subscriber Identity Module sends the effective full range scanning result of looking for net request back directly to exist in the radio resource reporting system.
7. two cards in mobile phones optimized method for network searching according to claim 6 is characterized in that: if described network environment changes, then put zero clearing the sweep time of first Subscriber Identity Module record and lay equal stress on and newly begin full range scanning and look for net.
8. two cards in mobile phones optimized method for network searching according to claim 1, it is characterized in that: send out the full range scan request to physical layer in the described step 8, after physical layer is reported the result, behind radio resource report full range scanning result, write down the time point of current second Subscriber Identity Module scanning.
9. two cards in mobile phones optimized method for network searching according to claim 8, it is characterized in that: the full range that described first Subscriber Identity Module sends is looked for net request if at second Subscriber Identity Module write down the sweep time of point later in the special time, and then first Subscriber Identity Module sends the effective scanning result who looks for second Subscriber Identity Module that net request back directly exists in radio resource announcement system.
10. two cards in mobile phones optimized method for network searching according to claim 8, it is characterized in that: the full range that described first Subscriber Identity Module sends is looked for net request if at second Subscriber Identity Module write down the sweep time of point later behind the special time, then system judges whether the networking environment changes, do not change as network environment, then first Subscriber Identity Module sends the effective scanning result who looks for direct second Subscriber Identity Module that writes down in net request back in the radio resource reporting system, network environment changes as described, then puts zero clearing the sweep time of second Subscriber Identity Module record and lays equal stress on and newly begin full range scanning and look for net.
11. according to claim 5,6,9 or 10 described two cards in mobile phones optimized method for network searching, it is characterized in that: described special time is meant a time period, in this time period, the residing network environment of mobile phone can not change, having crossed should be after the time period, and the residing network environment of mobile phone can change.
12. two cards in mobile phones optimized method for network searching according to claim 1 is characterized in that: described first Subscriber Identity Module is identical provider customer's identification card with second Subscriber Identity Module.
13. two cards in mobile phones optimized method for network searching according to claim 1 is characterized in that: described first Subscriber Identity Module is different provider customer's identification cards with second Subscriber Identity Module.
14. two cards in mobile phones optimized method for network searching according to claim 1 is characterized in that: described first Subscriber Identity Module and second Subscriber Identity Module all are to work in a kind of with in the lower network: GSM, CDMA, CDMA2000, PHS, WCDMA, TD-SCDMA, WIMAX.
15. dual-card intelligent switch method for mobile phone according to claim 1 is characterized in that: described mobile phone has only a cover antenna and a cover radio-frequency module.
16. dual-card intelligent switch method for mobile phone according to claim 1 is characterized in that: described mobile phone has only a baseband processing chip.
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| CN101895969A (en) * | 2010-07-30 | 2010-11-24 | 展讯通信（上海）有限公司 | Mobile terminal and network searching method thereof |
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