CN100571465C - Location area updating method during double card double standby mobile phone moves - Google Patents
Location area updating method during double card double standby mobile phone moves Download PDFInfo
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- CN100571465C CN100571465C CNB2008100322565A CN200810032256A CN100571465C CN 100571465 C CN100571465 C CN 100571465C CN B2008100322565 A CNB2008100322565 A CN B2008100322565A CN 200810032256 A CN200810032256 A CN 200810032256A CN 100571465 C CN100571465 C CN 100571465C
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Abstract
The invention discloses the location area updating method of a kind of double card double standby mobile phone in moving, at first behind the sub-district handover success of mobile phone, step (1) mobile phone obtains the position code of current area from BCCH monitoring system broadcast message; Step (2) judges whether the position code of storing in position code and the mobile phone memory of current area of above-mentioned acquisition is consistent, if it is inconsistent, SIM1 sends position updating request through SDCCH to cell phone system, step (3) if mobile phone converse, then will after this end of conversation, carry out the position and upgrade; The position that SIM2 independently finishes oneself according to the handling process identical with above-mentioned SIM1 is new technological process more.The inventive method makes portable terminal have only under the independent GSM communication module, has solved double card double standby mobile phone when a lane place moves to another lane place, carries out the problem of location area updating.
Description
Technical field
The present invention relates to the location area updating method of a kind of global system for mobile communications (Global System for MobileCommunications is hereinafter to be referred as GSM) mobile phone in moving,, the location area updating method during particularly a kind of double card double standby mobile phone moves.Before carrying out location area updating, at first will carry out the sub-district switches, therefore mobile phone is at first measured this sub-district of SIM card 1 correspondence and the signal of adjacent cell, Broadcast Control Channel (the Broadcast ControlChannel of switching cell is wanted in decoding then, hereinafter to be referred as BCCH), judge whether to carry out the sub-district and switch.
Background technology
The personal mobile communication fast development, a lot of users have the number more than 2, corresponding client identification module card (Subscriber Identity Model is hereinafter to be referred as SIM card) more than 2.In this case, can select, but bother very much, so increasing user selects to use the GSM mobile handset of supporting double SIM card with two mobile phones.
Support that at present the technology of two SIM has two kinds:
1: single GSM communication module, connect two kinds of SIM card by electronics or mechanical mode, but the same time has only one can work.Other one is in off-mode.That is to say, can only be in user mode by a number.
2: two GSM communication modules, each module are supported a SIM card separately, can realize that two numbers are in holding state simultaneously.Any one can incoming call, exhalation.
Scheme one is that two cards are singly treated in fact, though two SIM cards are physically arranged, as long as one can be worked, therefore, switch the sub-district is the GSM flow process of standard.
Scheme two is supported double-card dual-standby, but has adopted two to overlap independently system, and therefore, in individual system, switch the sub-district all is the GSM flow process of standard.
Summary of the invention
The present invention is the deficiency that overcomes above-mentioned prior art, the technical problem to be solved in the present invention provides the location area updating method of a kind of double card double standby mobile phone in moving, solve two card double-card mobile phones when a lane place moves to another lane place, how to carry out the problem of location area updating.
For solving the problems of the technologies described above, technical scheme of the present invention is:
Location area updating method during a kind of double card double standby mobile phone moves, two cards of the SIM1 of described double card double standby mobile phone and SIM2 belong to different operators, at first this sub-district of mobile phone for measuring SIM1 correspondence and the signal of adjacent cell, the BCCH channel of broadcast control of switching cell is wanted in decoding then, judging whether to carry out the sub-district switches, behind the handover success of sub-district, this location area updating method also comprises the following steps:
Step (1) mobile phone protocol layer module is obtained the position code of current area from BCCH channel of broadcast control monitoring system broadcast message;
Step (2) mobile phone protocol layer module judges whether the position code of storing in position code and the mobile phone memory of current area of above-mentioned acquisition is consistent, if consistent, changes step 6; If inconsistent, SIM1 sends position updating request through Separate Dedicated Control Channel SDCCH to cell phone system, changes step 3;
Step (3) then will be changeed step 4 if mobile phone is conversed after this end of conversation; If mobile phone in conversation, does not directly change step 4;
The position that step (4) mobile phone protocol layer module is carried out SIM1 according to the GSM standard flow process is upgraded;
The position that step (5) SIM2 independently finishes oneself according to the handling process identical with above-mentioned SIM1 is new technological process more;
Step (6) position is upgraded and is finished.
Location area updating method during a kind of double card double standby mobile phone moves, two cards of the SIM1 of described double card double standby mobile phone and SIM2 belong to same operator, at first this sub-district of mobile phone for measuring SIM1 correspondence and the signal of adjacent cell, the BCCH channel of broadcast control of switching cell is wanted in decoding then, judging whether to carry out the sub-district switches, after all successes were switched in the sub-district of SIM1 and SIM2, this location area updating method also comprised the following steps:
Step (1) mobile phone protocol layer module is obtained the position code of current area from BCCH channel of broadcast control monitoring system broadcast message;
Step (2) mobile phone protocol layer module judges whether the position code of storing in position code and the mobile phone memory of current area of above-mentioned acquisition is consistent, if consistent, changes step 7; If inconsistent, SIM1 sends position updating request through SDCCH to cell phone system, changes step 3;
Step (3) then will be changeed step 4 if mobile phone is conversed after this end of conversation; If mobile phone in conversation, does not directly change step 4;
Step (4) mobile phone protocol layer module is upgraded according to the position of GSM standard flow startup SIM1;
Step (5) SIM2 directly obtains the measurement data of SIM1;
Step (6) SIM2 enable position is upgraded;
Step (7) position is upgraded and is finished.
Compared with prior art, the invention has the beneficial effects as follows:
By the synchronous matching design of software and hardware, the invention solves two card double-card mobile phones when a lane place moves to another lane place, how to carry out the problem of location area updating.This scheme supports two SIM in the same GSM terminal equipment to land the GSM network simultaneously.And this GSM terminal only needs a cover communication module, needs only a controller, memory, only needs an antenna.
Description of drawings
Fig. 1-1 hardware designs block diagram of the present invention
The hardware specific design figure of Fig. 1-2 specific embodiment of the invention
Fig. 2 concrete software architecture diagram of the present invention
Fig. 3 is the flow chart of cell measurement of the present invention
Fig. 4 is the location area updating flow chart of different operators card of the present invention
Fig. 5 is the location area updating flow chart of same operator card of the present invention
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.The present invention needs hardware designs and software design to cooperate synchronously, and the present invention will be described from the angle of hardware and software below.
Hardware implementation platform of the present invention is shown in Fig. 1-1 and 1-2.Use a cover GSM communicating circuit, antenna, a single memory, two to overlap the SIM card interface circuits on the hardware, and other control circuits of cover.Hardware increases analog switch on general GSM hardware architecture basis, by software control, switch between two SIM card.
The GSM communicating circuit comprises radio circuit and baseband processor, described radio circuit comprises rf chip, radio-frequency power amplifier and duplexer, wherein this duplexer is integrated in the front-end module, described baseband processor comprises GSM signal processor and general-purpose built-in type CPU, and this general-purpose built-in type CPU is base band master chip BBIC.Other control circuit comprises power module, keyboard, voicefrequency circuit and LCD interface circuit.Described antenna is connected in turn with radio circuit, baseband processor.
The function of each several part is as follows:
Baseband processor: comprise GSM signal processor and general-purpose built-in type CPU.Described baseband processor adopts the SPREADTRUM 6600D chip of spreadtrum company.This GSM signal processor is digital signal processing chip (Digital Signal Processing is hereinafter to be referred as DSP), selects the PM+VC0529 of Vimicro company for use.
The function that the GSM signal processor is finished:
Encoding and decoding speech is finished the conversion between voice signal and the digital signal;
Information encoding-decoding improves the error that is caused by noise and interference in the transmission course, improves system reliability;
The signal modulation and demodulation is finished the conversion between digital signal and the analog signal;
Adaptive equalization: the interference the when time delay that solution is caused by multipath fading is expanded the high-speed transfer that causes between code element.
Embedded type CPU:
Finish all Control work, comprise communication flow processing, mobile phone interface processing, attachment management etc.
Radio circuit: mainly comprise rf chip and radio-frequency power amplifier, duplexer etc., finish the modulation and demodulation between baseband signal and the radiofrequency signal.Wherein this duplexer is integrated in the front-end module.Described rf chip adopts the SI 4210 of Silicon Labs Cp Inc., and described radio-frequency power amplifier adopts the SI 4300 of Silicon Labs Cp Inc..
Memory: comprise flash memory (being FLASH), deposit the cell phone software resource and the program running space is provided.When needs improved program operation speed, this memory also can also comprise RAM.This memory adopts the NOR+SRAM FLASH of Samsung.
Analog switch:, therefore need analog switch to switch because baseband chip only provides a SIM card interface.
Other control circuit: comprise power module, voicefrequency circuit, keyboard, I/O interface circuit and LCD (LCD) interface circuit etc.This power module comprises part and the power management module that cellular phone power supplies is provided.The LCD interface circuit comprises LCD MODULE and camera.
Software is mainly handled the operation among the present invention in protocol layer.As shown in Figure 2.
Agreement ground floor Layer1: provide the interface between chip and high layer software, directly control chip.
Agreement second layer Layer2: finish transfer of data and flow control.
RRM (Radio Resources is called for short RR): finish RRM.
Task management module (Mobility Management is called for short MM): finish mobile phone identification and mobile management.
Call out control (Call control is called for short CC): the management relevant with handset call.
SMS: short message service management.
Supplementary service (Sup.Services is called for short SS): the supplementary service management, as calling transfer, number demonstration etc.
Agreement second layer module is by Cell Broadcast CB (Cell Broadcast, abbreviation CB) module is to the base station sub-system channel request, take Separate Dedicated Control Channel (the Standalone Dedicated Control Channel of system assignment then, be called for short SDCCH), initiate position updating request information.Through authentication and ciphering process, location register (Visit LocationRegister, be called for short VLR) upgrade to mobile phone transmission position and accept message, wherein comprise the temporary transient identification code of mobile subscriber (Temporary Mobile Subscriber Identity, be called for short TMSI) and lane place identification code (Location Area Identity is called for short LAI) information.
Agreement second layer module is carried out location area updating to the request of sending of RRM (RR) module, and reports TMSI and LAI information; RRM (RR) module is sent the location area updating request to the task management module, and reports TMSI and LAI information; Task management module assignment location area updating task is to the SIM card control module; SIM card control module completing place district upgrades.
In GSM, one is moved exchange controlled area (Mobile Switching Centre is called for short MSC)/VLR service area and often is divided into a plurality of lane place (Location Area is called for short LA), a lane place has comprised several sub-districts, and adopts LAI to manage.MS moves in the lane place does not need to carry out location registers, and gsm system is exactly to send paging (being called for short paging) information by all base stations in the parked position district to the paging of mobile phone, and mobile phone is just received and given and response.
Therefore, when mobile phone when a lane place moves to another lane place, find that variation has taken place the lane place identification code in its memory, just set up new registration procedure to network, just need the enable position district to upgrade.
Handling process is divided into two different flow processs then according to operator's difference of two SIM correspondences.
Two cards of A belong to different operators respectively:
Because two SIM cards belong to different operators respectively, and each difference is divided in the GSM sub-district of operator, therefore, each SIM corresponding district gravity treatment is independently carried out.See also Fig. 4.Fig. 4 is the location area updating flow chart of different operators card of the present invention.
The adjacent cell of 1 mobile phone test SIM, 1 correspondence is measured, and the BCCH of switching cell is wanted in decoding, judges whether to switch.
See also Fig. 3, Fig. 3 is the flow chart of cell measurement of the present invention.The signal strength signal intensity of 6 sub-districts of vicinity of mobile phone test SIM1 correspondence, and adjacent sub-district carried out Base transceiver Station Identity Code decoding (Base Station Identity Code in per at least 60 seconds, be called for short BSIC), can select 30 seconds timers, to determine whether adjacent sub-district changes, if find that variation has taken place BSIC, judge that then variation has taken place in adjacent sub-district, to decode to its BCCH, the BCCH to adjacent sub-district decoded again in per 5 minutes, to guarantee the accuracy of sub-district gravity treatment data.
2: behind the handover success, mobile phone obtains the LAI of current area from BCCH monitoring system broadcast message.
3: if the LAI in current area LAI and the memory is inconsistent, SIM1 sends position updating request through Separate Dedicated Control Channel SDCCH to system.
If this moment, mobile phone was conversed, then will after this end of conversation, carry out the position again and upgrade.
Mobile phone protocol layer module is upgraded according to GSM standard flow startup position.Be summarized as follows:
Position updating process is the main process in the location management, caused by mobile phone, the SIM card of attaching position register in GSM (Home Location Register is called for short HLR), VLR and mobile phone all needs location aware information, when occurrence positions changes, need to guarantee three's consistency.
The position is upgraded can be divided into two kinds of situations:
(1) same MSC/VLR district, the position of Different L AI is upgraded, and only needs to upgrade the positional information among the VLR;
(2) different MS C/VLR district, the position of Different L AI is upgraded, and needs to upgrade the positional information among HLR, the VLR.
Mobile phone sends position updating request through SDCCH to system, in two kinds of situation: the one, new LAI and former LAI belong to same MSC/VLR, and finish in its VLR this mobile phone location information modification by this MSC this moment.Another kind is that new LAI and former LAI do not belong to same MSC/VLR, and this stylish MSC/VLR sends out position updating request to HLR, accepts and revise customer position information by HLR, and notice Anchor MSC/VLR deletes the relevant information of this mobile phone, and notifies new MSC to note down in VLR.
When mobile phone uses for the first time, in data storage, can not find LAI, it just requires connecting system promptly to send out position updating request to MSC/VLR automatically, this request comprises its international mobile subscriber identity (international mobile subscriber identity, be called for short IMSI), the request that MSC/VLR then will receive is sent out into HLR, behind HLR authentication and record, circularize MSC/VLR, and VLR registers this user, so far MSC/VLR thinks that this mobile phone is activated, and its data field is done " adhering to " mark.
Mobile phone is gone up information the listening system broadcasting from BCCH, then the LAI of the LAI that receives and mobile phone EMS memory storage relatively, inconsistently then carries out the position renewal.
(1) position of identical VLR is upgraded
The basic procedure that the position is upgraded is: mobile phone is gone up to the base station sub-system channel request in Random Access Channel (Random AccessChannel is called for short RACH), takies the SDCCH of system assignment then, initiates position updating request information.Through authentication and ciphering process, VLR sends the position renewal to mobile phone and accepts message, wherein comprises TMSI and LAI information.Mobile phone is stored in TMSI and LAI in the SIM card.Loopback TMSI response message, mobile phone discharges SDCCH, and position updating process is finished.
(2) position of different VLR is upgraded
The position of following situation is upgraded and be will be referred to HLR:
The ◇ mobile phone is in the new VLR band of position, so this location area updating must relate to HLR;
The ◇ mobile phone registration network of starting shooting first;
Relevant information among the ◇ HLR is lost.
Mobile phone is from a base transceiver station (Base Transceiver Station, be called for short BTS) when another BTS sub-district of different MS C is shifted in the sub-district, because the MSC address changes, so MSC/VLR sends position updating request to HLR, provide the identification code of MSC and mobile phone, HLR revises this customer data, and MSC is given in loopback an affirmation response, VLR carries out the data registration to this client, send to position of mobile phone by new MSC at last and upgrade affirmation, notify the customer data of relevant this mobile phone among the original MSC deletion VLR simultaneously by HLR.
More than be that mobile phone protocol layer module is upgraded according to the position of GSM standard flow startup SIM1.
SIM2 is according to test case, and whether decision will carry out the sub-district gravity treatment.If satisfy reselection conditions, then start cell re-selection procedure, afterwards, and if LAI changes, enable position district new technological process more then.
In a word, two SIM are independent fully when handling the lane place processing.Finish the handling process of oneself separately.
Two cards of B belong to identical operator respectively:
Because two cards belong to same operator, physically are in same position again, shared same set of communication module, the same antenna, therefore two SIM card corresponding district situations must be identical.Equally, corresponding lane place is also necessarily identical, at this situation, only needs a SIM card that cell parameter is tested, and the another one SIM card can be shared measurement parameter.After SIM card completing place district upgraded, another SIM followed more new technological process of enable position district.See also Fig. 5.Fig. 5 is the location area updating flow chart of same operator card of the present invention.
Concrete steps are as follows:
The adjacent cell of 1 mobile phone test SIM1 correspondence is measured, and the BCCH of switching cell is wanted in decoding.Judge whether to switch.
2: behind the handover success, mobile phone obtains the LAI of current area from BCCH monitoring system broadcast message.
3: if the LAI in current area LAI and the memory is inconsistent, SIM1 sends position updating request through SDCCH to system.Whether belong to a MSC/VLR as for new LAI and original LAI, then by system handles.
4:SIM2 obtains the SIM1 parameter, and the enable position district is new technological process more.
If this moment, mobile phone was conversed, then will after this end of conversation, carry out the position again and upgrade.
In sum, the present invention is based on that the hardware platform shown in Fig. 2-1 and the 2-2 realizes.By the synchronous matching design of software and hardware, this portable terminal is having only under the independent GSM communication module, has solved two card double-card mobile phones when a lane place moves to another lane place, carries out the problem of location area updating.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (2)
1, the location area updating method during a kind of double card double standby mobile phone moves, two cards of the SIM1 of described double card double standby mobile phone and SIM2 belong to different operators, at first this sub-district of mobile phone for measuring SIM 1 correspondence and the signal of adjacent cell, the BCCH channel of broadcast control of switching cell is wanted in decoding then, judge whether to carry out the sub-district and switch, it is characterized in that:
Behind the handover success of sub-district, this location area updating method also comprises the following steps:
Step (1) mobile phone protocol layer module is obtained the position code of current area from BCCH channel of broadcast control monitoring system broadcast message;
Step (2) mobile phone protocol layer module judges whether the position code of storing in position code and the mobile phone memory of current area of above-mentioned acquisition is consistent, if consistent, changes step 6; If inconsistent, SIM1 sends position updating request through Separate Dedicated Control Channel SDCCH to cell phone system, changes step 3;
Step (3) then will be changeed step 4 if mobile phone is conversed after this end of conversation; If mobile phone in conversation, does not directly change step 4;
The position that step (4) mobile phone protocol layer module is carried out SIM1 according to the GSM standard flow process is upgraded;
The position that step (5) SIM2 independently finishes oneself according to the handling process identical with above-mentioned SIM1 is new technological process more;
Step (6) position is upgraded and is finished.
2, the location area updating method during a kind of double card double standby mobile phone moves, two cards of the SIM1 of described double card double standby mobile phone and SIM2 belong to same operator, at first this sub-district of mobile phone for measuring SIM 1 correspondence and the signal of adjacent cell, the BCCH channel of broadcast control of switching cell is wanted in decoding then, judge whether to carry out the sub-district and switch, it is characterized in that:
After all successes were switched in the sub-district of SIM1 and SIM2, this location area updating method also comprised the following steps:
Step (1) mobile phone protocol layer module is obtained the position code of current area from BCCH channel of broadcast control monitoring system broadcast message;
Step (2) mobile phone protocol layer module judges whether the position code of storing in position code and the mobile phone memory of current area of above-mentioned acquisition is consistent, if consistent, changes step 7; If inconsistent, SIM1 sends position updating request through SDCCH to cell phone system, changes step 3;
Step (3) then will be changeed step 4 if mobile phone is conversed after this end of conversation; If mobile phone in conversation, does not directly change step 4;
Step (4) mobile phone protocol layer module is upgraded according to the position of GSM standard flow startup SIM1;
Step (5) SIM2 directly obtains the measurement data of SIM1;
Step (6) SIM2 enable position is upgraded;
Step (7) position is upgraded and is finished.
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| CNB2008100322565A CN100571465C (en) | 2008-01-03 | 2008-01-03 | Location area updating method during double card double standby mobile phone moves |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8594670B2 (en) * | 2010-07-21 | 2013-11-26 | Qualcomm Incorporated | Measurement and handover of dual USIM mobile terminal |
| CN103002491B (en) * | 2010-09-17 | 2015-04-15 | 中国联合网络通信集团有限公司 | System and method for preventing present network user terminal from accessing testing carrier frequency cell |
| EP2490492B1 (en) * | 2011-02-19 | 2016-04-20 | ST-Ericsson SA | Subscriber identity switch of a communication terminal |
| CN102769895A (en) * | 2012-07-30 | 2012-11-07 | 天翼电信终端有限公司 | Method for identifying geographic locations of mobile terminals |
| CN108347725B (en) | 2017-01-25 | 2021-02-09 | 华为技术有限公司 | Communication method and apparatus |
| CN110856098B (en) * | 2018-08-02 | 2021-09-28 | ***通信集团四川有限公司 | Circuit switched fallback combined location update processing method, system, device and medium |
| CN109195155B (en) * | 2018-08-27 | 2021-09-07 | 中国联合网络通信集团有限公司 | Method, device and equipment for determining dual-card terminal user identification and readable storage medium |
| CN110177365A (en) * | 2019-07-03 | 2019-08-27 | 中国联合网络通信集团有限公司 | Double-card dual-standby location updating method, device and terminal |
| US11582594B2 (en) * | 2019-10-11 | 2023-02-14 | Samsung Electronics Co., Ltd. | Methods and systems for managing decoding of control channels on a multi-SIM UE |
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Owner name: WINGTECH COMMUNICATION CO., LTD. Free format text: FORMER OWNER: WENTAI COMMUNICATION SCIENCE + TECHNOLOGY CO., LTD., JIAXING CITY Effective date: 20120315 |
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Effective date of registration: 20120315 Address after: 314006, No. 777, Middle South Road, Nanhu District, Zhejiang, Jiaxing (Jiaxing science and technology city) Patentee after: Wingtech Communication Co., Ltd. Address before: 314006, Jiaxing, Zhejiang on the north side of South Central Road, two West Road Patentee before: Wentai Communication Science & Technology Co., Ltd., Jiaxing City |