CN1980420B - Networking locking method of CDMA2000 terminal apparatus - Google Patents
Networking locking method of CDMA2000 terminal apparatus Download PDFInfo
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- CN1980420B CN1980420B CN2005101019241A CN200510101924A CN1980420B CN 1980420 B CN1980420 B CN 1980420B CN 2005101019241 A CN2005101019241 A CN 2005101019241A CN 200510101924 A CN200510101924 A CN 200510101924A CN 1980420 B CN1980420 B CN 1980420B
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Abstract
The method includes following steps: judging network in waiting for writing to terminal device and operational parameter to determine whether these parameters to be written can cause the terminal device to break away from the stated registered network; if yes, refusing writing in; otherwise write is enable. Since terminal device can select working network, the disclosed locking method only locks stated network. No matter how strong the signal on network is, the method does not lock terminal device in the network, in which locking operation is prohibited. Moreover, even if when illegal parameter is written to a terminal accidentally, the method guarantees the terminal is unable to work normal in the network not registered in. the invention realizes selectable network locking and providing safe and reliable locking.
Description
Technical field
The present invention relates to a kind of networking locking method of communication terminal equipment, in particular a kind of networking locking method of CDMA2000 terminal equipment.
Background technology
The employed air-interface standard of prior art is not as stipulating the concrete grammar of terminal equipment search network among IS-2000 and the IS-95B.The network search method of terminal equipment is designed voluntarily by equipment manufacturers, and the benefit of doing like this is to make CDMA terminal equipment manufacturer that greater flexibility be arranged, and can adopt best practice search separately to obtain network.But so also make air-interface standard clearly not stipulate to networking locking method.
Generally, the CDMA terminal equipment always selects to use the best network of received signal intensity RSSI (Received Signal Strength Indicator), to obtain optimum communication quality.Have only the situation of an operator for a certain place, the method for this selection network does not have any problem.
But when having the operator of a plurality of competitive relations for certain location, the method for this selection network can bring difficulty.When the somewhere has a plurality of operators to run cdma network simultaneously, might certain operator do not wish that the network that the registered user's of oneself terminal equipment locks onto other operator gets on, because this terminal use registers in the network of oneself, only under the network of oneself, can obtain the service applied for, under other carrier networks, can't obtain service, except that dialing particular service such as emergency numbers.
Common way is to adopt to write specific first-selected roaming list to terminal equipment at present, first-selected roaming list (Preferred Roaming List) is one of required parameter of terminal equipment operate as normal, and it is stipulated the web search order of terminal equipment, the preferential selecting sequence of network, the availability of network etc.Terminal equipment can be selected the network of work according to first-selected roaming list, can effectively solve operator like this network limits of terminal equipment is used problem.But this method has the limitation of himself, and first-selected roaming list is a parameter of terminal equipment, and this parameter has the possibility of being rewritten.
Now a lot of operators have taked the mode of binding network subsidy sale in order to promote market to terminal equipment; The user can spend less expense and buy terminal equipment there from operator, but must be limited in the network registration use down of this operator, if just adopt the mode of roaming list to be limited, then fail safe is not high, if the disabled user adopts tool software that the roaming list in the terminal equipment is rewritten, this terminal equipment just can be used to the network of other operators so.
For the terminal equipment of separation between machine and card, some operator has taked the method for interlocking of phone and card in order to realize the network locked function.So-called interlocking of phone and card just is meant that adopting certain technological means to make only is fitted to each other terminal equipment and UIM card " locking " mutually and could normally uses.But this method can't adopt for machine card integrated terminal equipment, and certain potential safety hazard is arranged self.Because much the method for interlocking of phone and card is based on PIN PIN (Personal IdentificationNumber) the coding mode realization of UIM card.If the disabled user has got access to PIN code release PUK (PinUnblock Key) sign indicating number, then the function of interlocking of phone and card had just lost efficacy.In addition, also have the method for a kind of UIM of modification card self parameter, also can realize interlocking of phone and card, but this method needs UIM card manufacturer to cooperate, implement comparatively loaded down with trivial detailsly, and flexibility is not high yet, can only realize the locking of a batch facility and specific UIM usually.
Therefore, there is defective in prior art, and awaits improving and development.
Summary of the invention
Technical problem to be solved by this invention provides a kind of by the method for the safe and reliable realization of software control to terminal equipment network locked function, solves problems such as prior art is inconvenient to the terminal equipment locking, locking back easy crack.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of networking locking method of CDMA2000 terminal equipment, it may further comprise the steps:
For etc. the network and the running parameter of terminal equipment to be written judge, judge that whether these parameters that write may cause terminal equipment to break away from the registered network of regulation, if then refusal writes, otherwise allow to write.
Described method, wherein, the network and the running parameter of said write terminal equipment comprise: IMSI International Mobile Subscriber Identity, Home System identify and first-selected roaming list, and the visit of described network and running parameter are subjected to the protection of business programming code.
Described method, wherein, described method can be rewritten the terminal equipment parameter by tool software, keyboard, and described terminal equipment enters off-line state.
Described method, wherein, described method can be rewritten the terminal equipment parameter by air interface by operator or user when presence.
Described method, wherein, described method specifically comprises:
A, described terminal equipment are after receiving the order that writes network and running parameter, and the business programming code that the user is imported judges whether correctly, as not, proves that then the user does not have weight update, forbids the read-write to parameter;
Whether the business programming code of B, user input as described is through correct judgment, network to be written and running parameter such as then further judges within effective range, make amendment as refusal not, and process ends; Otherwise allow to write.
Described method, wherein, described method comprises when described terminal equipment is write IMSI International Mobile Subscriber Identity:
Whether mobile country code, mobile network code, MNCs to be written such as A1, described terminal equipment detection are requirements up to specification;
If B2 mobile country code, mobile network code, MNC are within the scope that allows to write, described terminal equipment judges further then etc. whether mobile logo sign indicating number to be written is legal; If illegal etc. mobile logo sign indicating number to be written, then described terminal equipment refusal writes described IMSI International Mobile Subscriber Identity parameter;
C3, described mobile logo sign indicating number comprise two parts, judge that this mobile logo sign indicating number whether in the scope that allows to write, is then to allow to write behind synthetic complete mobile logo sign indicating number, otherwise refusal write.
Described method, wherein, whether described terminal equipment has received the order that writes second half mobile logo sign indicating number before judging earlier after the order of receiving a part that writes described mobile logo sign indicating number; If also do not receive, the part mobile logo sign indicating number of just this being received stores, and waits for that the user sends the order of second half mobile logo sign indicating number.
Described method, wherein, described method comprises when described terminal equipment is write first-selected roaming list:
A2, described terminal equipment check that whether each of system log (SYSLOG) tabulation of described first-selected roaming list contains the system banner of forbidding locking network, if each does not contain the system banner of forbidding locking network, then allows to write;
If a certain in the system log (SYSLOG) that B2 should the first-selection roaming list tabulation contains the system banner of forbidding locking network, then further judges the system property of this network:, otherwise refuse to write if the system property of this network for banning use of, then allows to write.
Described method, wherein, whether described method: further allow terminal equipment to use the parameter of other cdma networks except that this first-selection roaming list is clearly stipulated to judge to the regulation in the first-selected roaming list, if do not allow locks up other network, then refusal writes if also comprising.
Described method wherein, also comprises: take following steps after described terminal equipment starts:
A3, read self IMSI International Mobile Subscriber Identity, Home System identification parameter;
B3, described terminal equipment judge whether the mobile country code of self, mobile network code, MNC value are the values of regulation, whether the mobile logo code value is within the prescribed limit, whether the Home System identification list contains the Home System sign of non-registered network, if above inspection has any one not pass through, then stop initialization procedure, and to the user prompt error message;
C3, the above-mentioned parameter self check relevant with the network locked function passed through after, described terminal equipment is judged the network that each gets access to whether contain the system identification information of this network that gets access in the cdma network Sync Channel Message;
D3, capture Sync Channel Message after, described terminal equipment judges whether the system banner of the network that this gets access to belongs to the system banner that bans use of, if ban use of, then withdraws from the network that this gets access to, other available network of new search of laying equal stress on; Otherwise lock the network that this gets access to, enter idle condition.
The networking locking method of a kind of CDMA2000 terminal equipment provided by the present invention, owing to adopt terminal equipment can select for the network of work, and the network of only locking regulation; For the network of forbidding locking, no matter how strong the signal of this network have, and terminal equipment does not lock; And when accident occurring and write illegal parameter, also can guarantee can't operate as normal at non-registered network lower terminal equipment, thereby has realized optionally network locked, and locked secure is reliable.
Description of drawings
To further describe the specific embodiment of the present invention below in conjunction with accompanying drawing, in the accompanying drawing,
Whether legal Fig. 1 be IMSI to be written such as the inventive method judgement flow chart;
Whether legal Fig. 2 be PRL to be written such as the inventive method judgement flow chart;
Whether legal Fig. 3 be ownership SID to be written such as the inventive method judgement flow chart;
Fig. 4 is the terminal equipment opening initialization safety inspection flow chart of the inventive method.
Embodiment
Hereinafter, will describe the inventive method in detail.
The networking locking method of CDMA2000 terminal equipment of the present invention, in the CDMA2000 terminal equipment, adopted the method for software control, for etc. the network and the running parameter of terminal equipment to be written can judge: judge at first whether may cause terminal equipment break away from the registered network of regulation, whether decision allows to write then if writing these parameters.Cause it to break away from registered network in order to prevent just in case there is illegal parameter to write terminal equipment, the present invention has also adopted a kind of when terminal equipment starts and obtains network, the parameter of self and the network that obtained are carried out the method for safety detection: if find is not the registered network predetermined parameter, then stop initialization procedure, if accessed network is the network that bans use of, then search for other networks again.
The inventive method by tool software, keyboard or over the air, OTA technology OTA (Over The Air) when the parameter to terminal equipment writes; adopt the terminal equipment of described networking locking method to judge, carry out suitable protection content of parameter.
Usually vital parameter is all protected eventually for the terminal equipment of the inventive method, is subjected to the terminal equipment parameter of the inventive method protection to mainly contain following: IMSI International Mobile Subscriber Identity IMSI (International Mobile Subscriber Identification), Home System sign Home-SID (Home System Identification), first-selected roaming list PRL (Preferred Roaming List).The visit of these parameters also is subjected to the protection of business programming code SPC (Service Programming Code).
The inventive method also stipulates, when described terminal equipment starts, self IMSI and ownership SID detected, and if not the actual parameter of defined, then can not normally use.Described terminal equipment judges the SID of this network after getting access to the Sync Channel Message of network, if not the SID that allows the locking network, then withdraws from this network other networks of new search of laying equal stress on.
If, all need to be assigned with a unique IMSI International Mobile Subscriber Identity IMSI in the whole world because each CDMA terminal equipment can operate as normal.IMSI can be further divided into mobile country code MCC (Mobile Country Code), mobile network code, MNC MNC (Mobile Network Code) and mobile station identification number MSIN (Mobile Station Identification Number).
Wherein MSIN is normally used is mobile logo sign indicating number MIN (Mobile IdentificationNumber).The MIN sign indicating number can be divided into two parts, MIN1 and MIN2.In order to realize the network locked function, the IMSI that the inventive method adopts the method subtend terminal equipment of software control to write limits, and can only write the IMSI relevant with the regulation network.For the IMSI that writes is limited, terminal equipment at first needs to know the scope that allows the IMSI that writes.IMSI flow process to be written such as terminal equipment judgement is as shown in Figure 1:
The user rewrites the terminal equipment parameter by tool software, keyboard, and at this moment, described terminal equipment enters off-line state; Perhaps, during presence, by air interface the terminal equipment parameter is rewritten by operator or user.
Described terminal equipment is after receiving the order that writes IMSI International Mobile Subscriber Identity IMSI parameter, and the business programming code SPC that the user is imported judges whether correctly, as not, proves that then the user does not have weight update, forbids the read-write to parameter.
The business programming code SPC of user's input is through correct judgment as described, further judge then etc. that whether mobile country code MCC to be written is the mobile country code of regulation, as not, illustrates that parameter is not that parameter to be written is not within the effective range, refusal is made amendment, and process ends.
The inventive method is rewritten the parameter of described terminal equipment dual mode usually: by over the air, OTA technology OTA with by modes such as tool software, keyboard are able to programme.If the employing second method, terminal equipment at first will enter off-line mode (offline mode).If adopt the over the air, OTA technology, then operator can directly rewrite the parameter of terminal equipment by air interface signaling.
No matter which kind of mode of employing, the inventive method are when carrying out the parameter write operation to terminal equipment, the user will at first send business programming code SPC to terminal equipment.The SPC sign indicating number is the password of terminal equipment self storage, is used for the legitimacy of identifying user identity.If that stores in the business programming code SPC of user's input and the terminal equipment is inconsistent, then refusing user's is carried out read-write operation to the important parameter of terminal equipment.Adopt the SPC protection mechanism can prevent effectively that the disabled user from stealing and rewriting the important parameter of terminal equipment.
If the SPC sign indicating number of user's input is correct, then this terminal equipment is proceeded IMSI validity check work.Whether terminal equipment such as can detect at MCC, MNC to be written is MCC, the MNC of regulation.If all within the scope that allows to write, terminal equipment can judge further etc. whether MIN to be written is legal etc. MCC to be written, MNC, otherwise terminal equipment refuses to write the order of parameter immediately.
Because MIN is divided into MIN1 and MIN2 two parts, and need whether could judge this MIN in the scope that allows to write by MIN1 and the synthetic complete MIN of MIN2 usually, so terminal equipment is receiving to write after MIN1 (or MIN2) order whether receive the order that writes second half MIN before the meeting judgement.If also do not receive, just the MIN1 that this is received (or MIN2) stores, and waits for that it is the order that MIN2 (or MIN1) writes MIN that the user sends second half.
Described terminal equipment will receive that MIN1 and MIN2 parameter are merged into MIN after MIN1 and MIN2 parameter to be written such as receiving, judge that then this MIN is whether within the MIN scope that allows to write.If within the scope that allows to write, illustrate etc. that IMSI parameter to be written is that effectively terminal equipment can carry out write operation, otherwise terminal equipment can refuse to write the order of parameter.
This method of employing the present invention is based on actual consideration, and different operators can be assigned with different specific MIN number segments usually, does not repeat each other.For example the A operator MIN section of distributing is A1～A2, the MIN section that other operators distribute or less than A1, or greater than A2.If A operator does not wish that the terminal equipment of oneself illegally rewritten by other equipment, the terminal equipment of oneself is selected the MIN that writes, if the MIN that writes between A1～A2, then can write, otherwise refusal writes.In addition, the operator of country variant also is assigned with different MCC and MNC, also can limit illegal rewriting to the IMSI parameter with these two parameters.
The first-selected roaming list PRL of the CDMA terminal equipment of the inventive method has stipulated the web search order of terminal equipment, the roaming state that network uses priority and certain network, is one of important parameter of terminal equipment operate as normal.Catch record (Acquisition Record) tabulation and system log (SYSLOG) (System Record) tabulation in the middle of the PRL, each of system log (SYSLOG) tabulation can write down a SID of system and network N ID, also has one to judge that this network is preferably or bans use of.
Because different operators is assigned with different specific SID sections usually, limit so can the subtend terminal equipment write PRL, only allow to write and can not make terminal equipment lock onto the PRL of other networks.For the PRL that writes is limited, terminal equipment at first needs to know the SID that allows cdma network use and that ban use of.PRL flow process to be written such as terminal equipment judgement as shown in Figure 2.
With to write IMSI similar, before writing PRL, also need to import the SPC sign indicating number to terminal equipment.If the checking of SPC sign indicating number is passed through, terminal equipment is proceeded PRL validity check work.
If each of the system log (SYSLOG) of this PRL tabulation does not contain the SID that forbids locking network, illustrate that then this PRL can not cause terminal equipment to lock onto on the network that bans use of, and then allows to write.If a certain in the tabulation of the system log (SYSLOG) of this PRL contains the SID that forbids locking network, then needs further to judge the attribute of this system: if the attribute of this system, illustrates that this system is unavailable for banning use of, then allow to write, otherwise refusal writes.
If stricter network locked requirement is arranged, can also judge the PREFERRED_ONLY parameter among the PRL.Whether this parameter regulation allows terminal equipment use other cdma networks except that PRL clearly stipulates, is that 1 expression bans use of the network outside the PRL regulation.If do not allow locks up other network, whether the PREFERRED_ONLY parameter that terminal equipment will detect PRL is 1, writes if not can refusing.
ID number of the Home System that the Home System of the CDMA terminal equipment of the inventive method sign SID prescribed terminal equipment is registered, different operators can be assigned with different specific SID sections usually, does not repeat each other.For example the A operator SID section of distributing is SIDa1～SIDa2, the SID section that other operators distribute or less than SIDa1, or greater than SIDa2.It is the important evidence of terminal equipment search network and judgement current roaming state.
Stipulate that in the CDMA2000 agreement terminal equipment will be stored a Home System SID tabulation in the permanent storage body.If the A of operator can make the terminal equipment of oneself that the ownership SID that writes is selected, only allow to write the ownership SID of SIDa1～SIDa2, other SID refusal writes, and can realize the protection to ownership SID parameter.The present invention proposes a kind of ownership SID that writes by the subtend terminal equipment and limits, and only allows to write the net locking method of the ownership SID of terminal equipment registration operator.For the ownership SID that writes is limited, terminal equipment at first needs to know the scope that allows the ownership SID that writes.Ownership SID flow process to be written such as terminal equipment judgement is as shown in Figure 3:
With write IMSI, PRL is similar, the user writes ownership SID to terminal equipment and can at first send the SPC sign indicating number and verify.After SPC checking was passed through, terminal equipment can check by equity ownership SID to be written, if etc. ownership SID to be written be within the scope of regulation, then allow to write, otherwise refusal writes.
If above several method joins together to use, can make the network locked function receive better effect.In addition, can also after starting, terminal equipment carry out the checking of network locked function with the method for software.Be that terminal equipment start network locked functional safety is checked flow chart as shown in Figure 4, its step comprises:
After terminal equipment starts, at first can read the parameters such as IMSI, ownership SID of self.Terminal equipment judges whether the MCC of self, MNC value are the values of regulation, and whether the MIN value is within the MIN scope of regulation, and whether ownership SID tabulation contains the ownership SID of non-registered network then.If more than there is any one inspection not pass through, then stop initialization procedure, and can be to the user prompt error message.Do can guarantee to have write illegal parameter value just in case meet accident like this, terminal equipment can not normally use.After the parameter self check relevant with the network locked function passed through, described terminal equipment can also be judged each network that gets access to.The information such as SID that contain this network in the cdma network Sync Channel Message.After capturing Sync Channel Message, terminal equipment judges whether the SID of this network belongs to the SID that bans use of, if ban use of, then withdraws from this network immediately, other available network of new search of laying equal stress on.If not what ban use of, then lock this network, enter idle condition.
The networking locking method of CDMA2000 terminal equipment of the present invention is selected the network of work by adopting terminal equipment, and the network of only locking regulation; For the network of forbidding locking, no matter how strong the signal of this network have, and terminal equipment does not lock; And when accident occurring and write illegal parameter, also can guarantee can't operate as normal at non-registered network lower terminal equipment, thereby has realized optionally network locked, and locked secure is reliable.
Simultaneously, should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (10)
1. the networking locking method of a CDMA2000 terminal equipment, it may further comprise the steps:
For etc. the network and the running parameter of terminal equipment to be written judge, judge etc. that whether network and running parameter to be written causes terminal equipment to break away from the registered network of regulation, if then refusal writes, otherwise allows to write.
2. method according to claim 1; it is characterized in that; the network and the running parameter of said write terminal equipment comprise: IMSI International Mobile Subscriber Identity, Home System identify and first-selected roaming list, and the visit of described network and running parameter are subjected to the protection of business programming code.
3. method according to claim 2 is characterized in that, described method can be rewritten the terminal equipment parameter by tool software, keyboard, and described terminal equipment enters off-line state.
4. method according to claim 2 is characterized in that, described method can be rewritten the terminal equipment parameter by air interface by operator or user when described terminal equipment is in line states.
5. method according to claim 4 is characterized in that, described method specifically comprises:
A, described terminal equipment are after receiving the order that writes network and running parameter, and the business programming code that the user is imported judges whether correctly, as not, proves that then the user does not have weight update, forbids the read-write to parameter;
Whether the business programming code of B, user input as described is through correct judgment, network to be written and running parameter such as then further judges within effective range, and as not, then refusal is made amendment, and process ends; Otherwise allow to write.
6. method according to claim 5 is characterized in that, described method comprises when described terminal equipment is write IMSI International Mobile Subscriber Identity:
Whether mobile country code, mobile network code, MNCs to be written such as A1, described terminal equipment detection are requirements up to specification;
If B2 mobile country code, mobile network code, MNC are within the scope that allows to write, described terminal equipment judges further then etc. whether mobile logo sign indicating number to be written is legal; If illegal etc. mobile logo sign indicating number to be written, then described terminal equipment refusal writes described IMSI International Mobile Subscriber Identity parameter; Wherein, described mobile logo sign indicating number comprises two parts, whether judges this mobile logo sign indicating number in the scope that allows to write behind synthetic complete mobile logo sign indicating number, if then allow to write, otherwise refusal writes.
7. method according to claim 6 is characterized in that, whether described terminal equipment has received the order that writes second half mobile logo sign indicating number before judging earlier after the order of receiving a part that writes described mobile logo sign indicating number; If also do not receive, the part mobile logo sign indicating number of just this being received stores, and waits for that the user sends the order of second half mobile logo sign indicating number.
8. method according to claim 5 is characterized in that, described method comprises when described terminal equipment is write first-selected roaming list:
A2, described terminal equipment check that whether each of system log (SYSLOG) tabulation of described first-selected roaming list contains the system banner of forbidding locking network, if each does not contain the system banner of forbidding locking network, then allows to write;
If a certain in the system log (SYSLOG) that B2 should the first-selection roaming list tabulation contains the system banner of forbidding locking network, then further judges the system property of this network:, otherwise refuse to write if the system property of this network for banning use of, then allows to write.
9. method according to claim 8, it is characterized in that, whether described method also comprises: further allow terminal equipment to use the parameter of other cdma networks except that this first-selection roaming list is clearly stipulated to judge to the regulation in the first-selected roaming list, if do not allow locks up other network, then refusal writes.
10. method according to claim 5 is characterized in that, also comprises: take following steps after described terminal equipment starts:
A3, read self IMSI International Mobile Subscriber Identity, Home System identification parameter;
B3, described terminal equipment judge whether the mobile country code of self, mobile network code, MNC value are the values of regulation, whether the mobile logo code value is within the prescribed limit, whether the Home System identification list contains the Home System sign of non-registered network, if above inspection has any one not pass through, then stop initialization procedure, and to the user prompt error message;
C3, the above-mentioned parameter self check relevant with the network locked function passed through after, described terminal equipment is judged the network that each gets access to whether contain the system identification information of this network that gets access in the cdma network Sync Channel Message;
D3, capture Sync Channel Message after, described terminal equipment judges whether the system banner of the network that this gets access to belongs to the system banner that bans use of, if ban use of, then withdraws from the network that this gets access to, other available network of new search of laying equal stress on; Otherwise lock the network that this gets access to, enter idle condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101019241A CN1980420B (en) | 2005-12-02 | 2005-12-02 | Networking locking method of CDMA2000 terminal apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101019241A CN1980420B (en) | 2005-12-02 | 2005-12-02 | Networking locking method of CDMA2000 terminal apparatus |
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| CN1980420A CN1980420A (en) | 2007-06-13 |
| CN1980420B true CN1980420B (en) | 2010-12-29 |
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| CN2005101019241A Expired - Fee Related CN1980420B (en) | 2005-12-02 | 2005-12-02 | Networking locking method of CDMA2000 terminal apparatus |
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| CN101888627B (en) | 2009-05-12 | 2013-08-21 | 中兴通讯股份有限公司 | Mobile terminal and system data protection method thereof |
| CN101635921B (en) * | 2009-07-31 | 2012-06-27 | 深圳趋势数码科技有限公司 | Protection method of memory device based on mobile communication network |
| CN101827352A (en) * | 2010-01-13 | 2010-09-08 | 上海市共进通信技术有限公司 | Device and method for locking radio access network in wireless data card |
| CN111182613B (en) * | 2019-12-20 | 2021-02-02 | 翱捷科技股份有限公司 | Multi-mode mobile terminal and network searching method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030022689A1 (en) * | 2001-06-15 | 2003-01-30 | Mcelwain John | Method and apparatus for relating communications system identifications (SIDS) |
| CN1409916A (en) * | 1999-10-27 | 2003-04-09 | 高通股份有限公司 | Search and replace features for handset phonebook |
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2005
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1409916A (en) * | 1999-10-27 | 2003-04-09 | 高通股份有限公司 | Search and replace features for handset phonebook |
| US20030022689A1 (en) * | 2001-06-15 | 2003-01-30 | Mcelwain John | Method and apparatus for relating communications system identifications (SIDS) |
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