CN101917694B - Code division multiple access network selection method and terminal - Google Patents
Code division multiple access network selection method and terminal Download PDFInfo
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- CN101917694B CN101917694B CN201010247723.3A CN201010247723A CN101917694B CN 101917694 B CN101917694 B CN 101917694B CN 201010247723 A CN201010247723 A CN 201010247723A CN 101917694 B CN101917694 B CN 101917694B
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Abstract
The invention relates to a code division multiple access network selection method which comprises the following steps: reading current network information when a user interactive interface of a code division multiple access terminal receives a network change command, and writing the current network information into an avoidance list; and leading the code division multiple access terminal to restart the network search process, judging whether an available network is in the avoidance list or not when searching the available network, if so, continuing the search, otherwise, accessing into the available network. The invention relates to the code division multiple access terminal. The code division multiple access network selection method can realize the access into the network to which a user desires to access by setting the avoidance list which can be operated by the user through the user interactive interface in the terminal and shielding the network which is searched during the network search process and is not desired to access by utilizing the avoidance list.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method and terminal that a kind of code division multiple access (Code Division Multiple Access is called for short CDMA) terminal is selected service network.
Background technology
Optimum roaming list (Preferred Roaming List, be called for short PRL) be to be stored in CDMA terminal/subscriber identification module ((User Identity Mode, abbreviation UIM) Parameter File on the card, it has recorded terminal should preferentially insert/forbid the network information that inserts, and is the important evidence of CDMA selecting network.
The CDMA terminal to the selection mechanism of service network is: at first by nearest use net list (Most Recently Use, be called for short MRU)+PRL+ terminal and the definite search list Scanlist of arranging of card, network is searched for and caught to terminal according to Scanlist then, all determined that by PRL etc. the user can't participate in advance in all choice information to network of end side.
Current mechanism, the CDMA terminal of domestic separation between machine and card, PRL is stored on the UIM card, because finite capacity can not be described all cdma network information of the whole world comprehensively, has adopted asterisk wildcard on some frequencies, so terminal can insert the all-network under this frequency voluntarily.
The CDMA terminal is when access service network, need carry out network registry, service network can arrive ownership place HLR and carry out the authentication affirmation, the authentication success, the normal access network of terminal then, but when failed authentication, the MSC of service area may can't issue Location Update Reject Oder (being optional message in A mouth standard 3GPP2A.S0014) to BSC, thereby the refuse information that terminal not necessarily can obtain to eat dishes without rice or wine (Registration Reject), still paying on non-signatory service network, when the user initiates business, just know and to use, bring very big inconvenience to the user like this.
Because the CDMA terminal is to search net by order listed among the PRL (having searched under the situation at MRU), as long as will adhere to so terminal runs into an available network, and the network state of ignoring the back how, and the network that adheres to as previously mentioned may and unavailable and terminal the unknown, so more aggravated user's inconvenience this moment.
The scheme that also has a kind of big capacity PRL+ automatic network selection now, this scheme accurately is provided with PRL, but ordinary terminal (separation between machine and card) is to big capacity PRL (scene will all accurately be listed roaming network at present needs size about 10k) and not exclusively support, and present existing note renewal technology, upgrading this PRL needs 70 above notes, implements very difficult.
The network selection flow process of GSM terminal is then not quite alike with CDMA, and the GSM terminal has automatic network selection and two kinds of patterns of manual network selection.The automatic network selection pattern need not the user and participates in, and terminal determines that according to attributes such as the priority of PLMN, disabled list, signal strength signal intensities optimum access network inserts; Manual network selection pattern is then listed all available network list under the current environment, selects or handover network for the user.Simultaneously, the GSM network can not omit issuing of refuse information when endpoint registration is failed, this point also with some similarities and differences of cdma network.
In addition, by discovering, because the difference of technology standard, cdma network is difficult to available network listed for user the same with GSM and selects by hand.Be example with the 25M bandwidth on the 800M frequency range, very soon can be synchronous unlike GSM, but CDMA PN search, 30KHz has 800～1000 at interval among the 25M, and tens minutes ability traversals are selected for manual if list overall network, and unrealistic.
In sum, domestic existing separation between machine and card CDMA terminal is having (the normally signatory roaming that has of a plurality of CDMA roaming networks, the non-signatory roaming that has) under the scene, may be attached on the non-signatory roaming network, can carry out professional roaming network and ignore real having contracted, because existing CDMA terminal can not be carried out manual network selection simply on technology realizes, the user also can't be hand-manipulated to another network, brings very big inconvenience to the user simultaneously.There is the deficiency of can not the user selecting network by hand too in the scheme of jumbo PRL+ automatic network selection.
Summary of the invention
The objective of the invention is to propose a kind of code division multiple access network selection method and terminal, can realize the manual network selection mode of user easily, provide the switching way to the CDMA terminal that is attached on the non-signatory roaming network.
For achieving the above object, the invention provides a kind of code division multiple access network selection method, comprising:
The user interactions interface of CDMA terminal receives when changeing the net instruction, reads current network information, and should the current network information write avoid list;
CDMA terminal is restarted and is searched the net flow process, after searching available network, judges whether this available network is in the described avoid list, is then to continue search, otherwise inserts this available network.
Further, the acquisition process of described current network information specifically comprises:
Obtain Mobile Country Code MCC or Mobile Network Code in the Extended System Parameters Message of CDMA terminal from the forward direction paging channel, to determine the characteristic information of current network.
Further, if can't obtain Mobile Country Code MCC (Mobile Country Code in the Extended System Parameters Message from the forward direction paging channel, be called for short MCC) or Mobile Network Code (Mobile Network Code, be called for short MNC), then from the system parameters message of synchronizing channel, obtain system identification number (System Identification, be called for short SID) and time zone offset information (The Offset of Local Time is called for short LTM_OFF), to determine the characteristic information of current network.
Further, also comprise: when the user interactions interface of CDMA terminal receives the instruction that empties avoid list, the record in the described avoid list is removed.
Further, also comprise: when the pair relationhip between CDMA terminal cycle power or subscriber identify module card and the CDMA terminal changes, the record in the described avoid list is removed.
For achieving the above object, the invention provides a kind of CDMA terminal, comprising:
The user interactions interface is used for receiving the instruction from user's operation, and shows avoid list or current network information;
Avoid list is preserved module, is used for preserving avoid list;
The avoid list writing module is used for reading current network information, and should the current network information writing avoid list when the user interactions interface receives the instruction of commentaries on classics net;
Evade the network selection module, be used for judging searching after the net flow process searches available network whether this available network is in the described avoid list, be then to continue search, otherwise insert this available network.
Further, also comprise: first network information acquisition module is used for obtaining Mobile Country Code MCC or Mobile Network Code, to determine the characteristic information of current network from the Extended System Parameters Message of forward direction paging channel.
Further, also comprise: second network information acquisition module, be used in the time can't from the Extended System Parameters Message of forward direction paging channel, obtaining Mobile Country Code MCC or Mobile Network Code, from the system parameters message of synchronizing channel, obtain system identification number and time zone offset information, to determine the characteristic information of current network.
Further, also comprise: first avoid list is removed module, is used for when the user interactions interface receives the instruction that empties avoid list the record in the described avoid list being removed.
Further, also comprise: second avoid list is removed module, when being used for the pair relationhip change between cycle power or subscriber identify module card and CDMA terminal, the record in the described avoid list is removed.
Based on technique scheme, the present invention arranges the user in terminal can be by the avoid list of user interactions interface operation, and utilize avoid list to shield searching the network that inserts of not wishing that searches in the network process, wish the network that inserts thereby be linked into the user.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of an embodiment of code division multiple access network selection method of the present invention.
Fig. 2 is the schematic flow sheet of the acquisition process of current network information among the code division multiple access network selection method embodiment of the present invention.
Fig. 3 is the structural representation of an embodiment of CDMA terminal of the present invention.
Fig. 4 is the structural representation of another embodiment of CDMA terminal of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
In present CDMA terminal, that adopt usually is the PRL that has asterisk wildcard, and this has just brought the possibility that inserts non-signatory roaming network, brings very big inconvenience to the user.Present CDMA terminal can't be corrected this situation by hand.The present invention has introduced avoid list in the CDMA terminal, make that the user can be by manual problem of correcting access network.
As shown in Figure 1, be the schematic flow sheet of an embodiment of code division multiple access network selection method of the present invention.In the present embodiment, the flow process of CDMA network selection method comprises:
The user interactions interface of step 101, CDMA terminal receives when changeing the net instruction, reads current network information, and should the current network information write avoid list;
In the present embodiment, search the net flow process and still can adopt the existing net flow process of searching, namely the CDMA terminal according to MRU, PRL and terminal and card arrange to determine search list Scanlist, travel through Scanlist then and search for and catch network.When finding that the available network that searches is in the avoid list, continue to search for according to search list Scanlist, if search the search listing end, then start timer, when timer expires, search the net flow process again.
Avoid list can be stored in the CDMA terminal, is safeguarded that by the CDMA terminal user can pass through user interactions interface accessing avoid list, and avoid list is added and revises.The user also can send the instruction that empties avoid list to the CDMA terminal by the user interactions interface, when the CDMA terminal receives this instruction, the record in the avoid list is removed.
The removing of avoid list can realize that also for example the CDMA terminal closedown is restarted by some conditions, or the pair relationhip between UIM card and the CDMA terminal can be removed the record in the avoid list when changing.
Present embodiment is by the setting of avoid list, make that the user can be by finishing the shielding of some not being wished the network that inserts to the operation of avoid list, for example for some non-signatory roaming networks, the operator of network is not create name, the professional a variety of causes such as failure of in this network, carrying out, with per family can be by to the interpolation of avoid list with revise the shielding of finishing these networks, and avoid list itself can't and be searched the net flow process and causes very big influence the CDMA terminal, it has overcome the PRL accurate disadvantage inadequately that adopts asterisk wildcard to a certain extent, as big capacity PRL mode, need more or not significant cost (PRL accurately lists roaming network and estimates about 10K, adopts the note update mode to be roughly equal to 70 above notes) that system is upgraded and upgrades.
When carrying out the avoid list interpolation, need obtain current network information usually, as shown in Figure 2, be the schematic flow sheet of the acquisition process of current network information among the code division multiple access network selection method embodiment of the present invention.In the present embodiment, the acquisition process of current network information comprises:
After step 201, the start, capture terminal and access network;
The characteristic information of the current network of CDMA terminal can be determined by MCC or the MNC that obtains in the Extended System Parameters Message in the Forward Paging Channel, but because MCC and issuing of MNC are not essential requirement, some cdma network does not issue MCC and MNC in the global range, therefore can from the system parameters message of synchronizing channel, obtain SID information, but because there is situation overlapping and conflict in some SID information in the global range, therefore can determine the characteristic information of current network in conjunction with the LTM_OFF information from the system parameters message of synchronizing channel.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
As shown in Figure 3, be the structural representation of an embodiment of CDMA terminal of the present invention.In the present embodiment, the CDMA terminal can comprise: user interactions interface 1, avoid list are preserved module 2, avoid list writing module 3 and are evaded network selection module 4.Wherein user interactions interface 1 is used for receiving the instruction from user's operation, and shows avoid list or current network information.Avoid list is preserved module 2 and is used for preserving avoid list.Avoid list writing module 3 is used for reading current network information, and should the current network information writing avoid list when the user interactions interface receives the instruction of commentaries on classics net.Evade network selection module 4 and be used for judging searching after the net flow process searches available network whether this available network is in the described avoid list, be then to continue search, otherwise insert this available network.
Avoid list in the CDMA terminal in the present embodiment is preserved in the module and has been preserved avoid list, can support write operation, when the user sends the instruction of commentaries on classics net by the user interactions interface, just can write avoid list.Avoid list be except supporting write operation, can also support to check/revise, operation such as removing.
In another embodiment, the CDMA terminal can also comprise first avoid list removing module, and this module can be removed the record in the described avoid list when the user interactions interface receives the instruction that empties avoid list.This reset procedure also can not presented to the user and be operated, can the record in the described avoid list be removed when second avoid list being set removing the pair relationhip of module between cycle power or subscriber identify module card and CDMA terminal and change.
As shown in Figure 4, be the structural representation of another embodiment of CDMA terminal of the present invention.In the present embodiment, user interactions interface 1 comprises changes net operation unit 11, check/revise list cell 12 and avoid list clearing cell 13.Change net operation unit 11 and can keep away button or the menu of option in the enterprising professional etiquette of CDMA terminal, select for the user, when receiving the commentaries on classics net instruction that the user sends by button, trigger avoid list writing module 3 and carry out writing of avoid list.
Check/revise that list cell 12 is to carry out checking of avoid list and the interface that provides is provided to the user, this unit can read avoid list and demonstration according to user's the instruction of checking, also can revise the record in the avoid list according to user's revision instruction.Avoid list clearing cell 13 is when receiving the instruction of the removing avoid list that the user sends, and triggers the record that first avoid list removes in 5 pairs of avoid lists of module and removes.
In the embodiment of above-mentioned several CDMA terminals, can realize obtaining of current network information by first network information acquisition module is set in the CDMA terminal, namely obtain Mobile Country Code MCC or Mobile Network Code in the Extended System Parameters Message from the forward direction paging channel, to determine the characteristic information of current network.If can't obtain Mobile Country Code MCC or Mobile Network Code in the Extended System Parameters Message from the forward direction paging channel, can also be by second network information acquisition module be set, from the system parameters message of synchronizing channel, obtain system identification number and time zone offset information, to determine the characteristic information of current network.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. code division multiple access network selection method comprises:
The user interactions interface of CDMA terminal receives when changeing the net instruction, reads the user and does not wish the current network information that inserts, and should the current network information write avoid list;
CDMA terminal is restarted and is searched the net flow process, after searching available network, judges whether this available network is in the described avoid list, is then to continue search, otherwise inserts this available network.
2. code division multiple access network selection method according to claim 1, the acquisition process of wherein said current network information specifically comprises:
Obtain Mobile Country Code MCC or Mobile Network Code in the Extended System Parameters Message of CDMA terminal from the forward direction paging channel, to determine the characteristic information of current network.
3. code division multiple access network selection method according to claim 2, if wherein can't obtain Mobile Country Code MCC or Mobile Network Code in the Extended System Parameters Message from the forward direction paging channel, then from the system parameters message of synchronizing channel, obtain system identification number and time zone offset information, to determine the characteristic information of current network.
4. code division multiple access network selection method according to claim 1 wherein also comprises:
When the user interactions interface of CDMA terminal receives the instruction that empties avoid list, the record in the described avoid list is removed.
5. code division multiple access network selection method according to claim 1 wherein also comprises:
When the pair relationhip between CDMA terminal cycle power or subscriber identify module card and the CDMA terminal changes, the record in the described avoid list is removed.
6. CDMA terminal comprises:
The user interactions interface is used for receiving the instruction from user's operation, and shows that avoid list or user do not wish the current network information that inserts;
The avoid list writing module is used for reading current network information, and should the current network information writing avoid list when the user interactions interface receives the instruction of commentaries on classics net;
Evade the network selection module, be used for judging searching after the net flow process searches available network whether this available network is in the described avoid list, be then to continue search, otherwise insert this available network.
7. CDMA terminal according to claim 6 wherein also comprises:
First network information acquisition module is used for obtaining Mobile Country Code MCC or Mobile Network Code from the Extended System Parameters Message of forward direction paging channel, to determine the characteristic information of current network.
8. CDMA terminal according to claim 7 wherein also comprises:
Second network information acquisition module, be used in the time can't from the Extended System Parameters Message of forward direction paging channel, obtaining Mobile Country Code MCC or Mobile Network Code, from the system parameters message of synchronizing channel, obtain system identification number and time zone offset information, to determine the characteristic information of current network.
9. CDMA terminal according to claim 6 wherein also comprises:
First avoid list is removed module, is used for when the user interactions interface receives the instruction that empties avoid list the record in the described avoid list being removed.
10. CDMA terminal according to claim 6 wherein also comprises:
Second avoid list is removed module, when being used for the pair relationhip change between cycle power or subscriber identify module card and CDMA terminal, the record in the described avoid list is removed.
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| CN104853337A (en) * | 2014-02-13 | 2015-08-19 | 中兴通讯股份有限公司 | Network registration method and device thereof |
| EP3113545B1 (en) * | 2014-03-28 | 2019-05-08 | Huawei Device Co., Ltd. | Roaming access method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599495A (en) * | 2004-09-07 | 2005-03-23 | 中国联合通信有限公司 | Network selecting method of phone card separated access terminal and phone card separated access termoinal |
| CN101296454A (en) * | 2008-06-12 | 2008-10-29 | 中兴通讯股份有限公司 | Network registration method and apparatus for multi-module mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599495A (en) * | 2004-09-07 | 2005-03-23 | 中国联合通信有限公司 | Network selecting method of phone card separated access terminal and phone card separated access termoinal |
| CN101296454A (en) * | 2008-06-12 | 2008-10-29 | 中兴通讯股份有限公司 | Network registration method and apparatus for multi-module mobile terminal |
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