CN101932079B - Public land mobile communication network selection method and device - Google Patents
Public land mobile communication network selection method and device Download PDFInfo
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- CN101932079B CN101932079B CN 201010282184 CN201010282184A CN101932079B CN 101932079 B CN101932079 B CN 101932079B CN 201010282184 CN201010282184 CN 201010282184 CN 201010282184 A CN201010282184 A CN 201010282184A CN 101932079 B CN101932079 B CN 101932079B
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Abstract
The invention discloses a public land mobile communication network selection method and a public land mobile communication network selection device. The method comprises that: after user equipment starts up, a non-access layer reads PLMN information from a USIM card or a nonvolatile memory; the non-access layer initiates a starting resident request, wherein the starting resident request comprises PLMN which is designated for the first time; an access layer initiates frequency sweeping to search cells, if a cell of the PLMN which is designated for the first time is searched, the cell of the PLMN which is designated for the first time is selected for residence, and if the cell of the PLMN which is designated for the first time is not searched or the residence is failed, the access layer reports all PLMNs obtained through frequency weeping to the non-access layer, and the non-access layer compares the reported PLMNs with the read PLMN and selects PLMN reported by the access layer in an actual environment for residence. The public land mobile communication network selection method and the public land mobile communication network selection device greatly improve the residence and registration efficiency and save time for a user to rapidly start up and acquire service.
Description
Technical field
The present invention relates to the communications field, more particularly, relate to a kind of public land mobile communication network selection method and device.
Background technology
In mobile communications network, allow to share a part of network element between the heterogeneous networks operator, thereby realize resource-sharing.There is different PLMN (Public LandMobile-communication Network, public land mobile communication network) in different operators, selects which PLMN to insert, and is determined by NAS layer (Non Access Stratum, Non-Access Stratum).The mode of 23122 pairs of network selections of 3GPP R8NAS layer protocol TS has been carried out automatic and manual differentiation, and the order successively that PLMN selects is described.
UE (User Equipment, subscriber equipment) USIM (Universal Subscriber IdentityModule, USIM) in the card or RPLMN (RegisteredPublic Land Mobile-communication Network arranged in the nonvolatile memory, the registration public land mobile communication network), HPLMN (Home Public Land Mobile-communication Network, the ownership public land mobile communication network), EHPLMN (Equivalent Home Public Land Mobile-communicationNetwork, equity ownership public land mobile communication network) tabulation, UPLMN (User controlledPublic Land Mobile-communication Network, the customization public land mobile communication network), OPLMN (Operator controlled Public Land Mobile-communicationNetwork, the carrier customization public land mobile communication network) information such as, agreement has been stipulated the priority that the NAS layer is selected these PLMN, selects a PLMN to carry out resident according to this priority, registration.The NAS layer to the basic order that above-mentioned PLMN selects is after the start of agreement regulation:
1, at first selects RPLMN;
2, select from the EHPLMN tabulation according to priority orders;
3, if be not selected before, select HPLMN;
4, according to priority in proper order, select the PLMN in " UPLMN selector and access technology " data field in the usim card;
5, according to priority in proper order, select the PLMN in " OPLMN selector and access technology " data field in the usim card;
6, according to other PLMN of random sequence selective reception high-quality signal;
7, other PLMN of selective sequential that successively decrease according to signal quality.
In the prior art, for each of above-mentioned 7 kinds of PLMN, all need to AS layer (AccessStratum, Access Layer) initiation comprises the boot stay request of this kind PLMN, initiate frequency sweep then and carry out Cell searching, search for the residential quarter of this PLMN, as search and then carry out residently, then continue to repeat above process as failure.Yet though stipulated the selecting sequence of PLMN in the agreement, owing to might not have above-mentioned various PLMN information in the usim card, the PLMN of real cell environment is also not necessarily consistent with the PLMN in the usim card.Add that spendable frequency is more and more along with LTE (Long Term Evolution, Long Term Evolution) system and 4G etc. are commercial gradually, the method that adopts prior art to provide, the average search time of PLMN is very long, make the user start shooting or answer a pager's call chronic.
Summary of the invention
Technical problem to be solved by this invention is the defective at prior art, proposes a kind of PLMN system of selection and device, for the time has been saved in the service of obtaining of user's quick turn-on.
In order to solve the problems of the technologies described above, the invention provides a kind of PLMN system of selection, comprising:
After the subscriber equipment start, Non-Access Stratum reads the information of public land mobile communication network PLMN from USIM usim card or nonvolatile memory;
Non-Access Stratum is initiated boot stay request to Access Layer, and described boot stay request comprises the PLMN of appointment for the first time;
Access Layer is initiated frequency sweep and is carried out Cell searching, if search the residential quarter of the PLMN of the described appointment first time, then selects the residential quarter of the PLMN of the described appointment first time to carry out resident; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, Access Layer reports Non-Access Stratum with all PLMN that frequency sweep obtains, Non-Access Stratum compares the PLMN that reports and the PLMN that reads, and the PLMN in the actual environment that the selection Access Layer reports carries out resident.
Further, if comprise registration public land mobile communication network RPLMN and equity ownership public land mobile communication network EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and EHPLMN; Do not comprise EHPLMN if comprise RPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and ownership public land mobile communication network HPLMN; If do not comprise RPLMN and EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time includes only HPLMN.
Further, if the PLMN of the described appointment first time includes only HPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: if search the residential quarter of HPLMN, then to select the residential quarter of described HPLMN to carry out resident;
If the PLMN of the described appointment first time comprises RPLMN and HPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of EHPLMN.
Further, described preferential selection resides in the residential quarter of RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, the residential quarter of selecting to reside in HPLMN comprises:
If at first search the residential quarter of RPLMN, then select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident;
If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN;
Described preferential selection resides in the residential quarter of RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, the residential quarter of selecting to reside in EHPLMN comprises:
If at first search the residential quarter of RPLMN, then select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident;
If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
Further, described Non-Access Stratum compares the PLMN that reports and the PLMN that reads, and the PLMN in the actual environment that the selection Access Layer reports carries out resident comprising:
Under automatic mode, Non-Access Stratum is searched common PLMN in the PLMN that reports and the PLMN that reads, and selects the highest PLMN of its medium priority to carry out resident;
Under manual mode, Non-Access Stratum searches that common PLMN is notified to the user in the PLMN that reports and the PLMN that reads, and the PLMN that selects according to the user carries out resident.
The invention provides a kind of PLMN choice device, comprising:
Read module after the subscriber equipment start, reads the information of public land mobile communication network PLMN from USIM usim card or nonvolatile memory;
Request module is used for initiating boot stay request, and described boot stay request comprises the PLMN of appointment for the first time;
The frequency sweep module is used for initiating frequency sweep and carries out Cell searching;
Resident module is used for then selecting the residential quarter of the PLMN of the described appointment first time to carry out resident if search the residential quarter of the PLMN of the described appointment first time; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, Access Layer reports Non-Access Stratum with all PLMN that frequency sweep obtains, Non-Access Stratum compares the PLMN that reports and the PLMN that reads, and the PLMN in the actual environment that the selection Access Layer reports carries out resident.
Further, if comprise registration public land mobile communication network RPLMN and equity ownership public land mobile communication network EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and EHPLMN; Do not comprise EHPLMN if comprise RPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and ownership public land mobile communication network HPLMN; If do not comprise RPLMN and EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time includes only HPLMN.
Further, if the PLMN of the described appointment first time includes only HPLMN, described resident module is further used for then selecting the residential quarter of described HPLMN to carry out resident if search the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and HPLMN, described resident module is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, selects to reside in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described resident module is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of EHPLMN.
Further, if the PLMN of the described appointment first time comprises RPLMN and HPLMN, described resident module is further used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident; If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described resident module is further used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident; If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
Described resident module is further used under automatic mode, and Non-Access Stratum is searched common PLMN in the PLMN that reports and the PLMN that reads, and selects the highest PLMN of its medium priority to carry out resident; Under manual mode, Non-Access Stratum searches that common PLMN is notified to the user in the PLMN that reports and the PLMN that reads, and the PLMN that selects according to the user carries out resident.
PLMN system of selection provided by the invention and device, start back AS layer does not search residential quarter or the resident failure on the residential quarter of the PLMN of the appointment first time of the PLMN of NAS layer appointment for the first time, then the AS layer reports the NAS layer with all PLMN that frequency sweep obtains, compare by the PLMN that relatively reports and the PLMN that reads, PLMN in the actual environment that selection AS layer reports carries out resident, the NAS layer can find the higher PLMN of priority rapidly like this, improved efficient resident and registration greatly, for the time has been saved in the service of obtaining of user's quick turn-on.
Description of drawings
Fig. 1 is the schematic flow sheet that the invention provides the embodiment of PLMN system of selection;
Fig. 2 is the structural representation that the invention provides the embodiment of PLMN choice device.
Embodiment
Core concept of the present invention provides a kind of PLMN system of selection and device, and after the UE start, the NAS layer reads the information of PLMN from usim card or nonvolatile memory; The initiation of NAS course AS layer comprises the boot stay request of the PLMN of appointment for the first time; The AS layer is initiated frequency sweep and is carried out Cell searching, if search the residential quarter of the PLMN of appointment for the first time, then selects the residential quarter of the PLMN of appointment for the first time to carry out resident; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, the AS layer reports the NAS layer with all PLMN that frequency sweep obtains, the NAS layer compares the PLMN that reports and the PLMN that reads, and the PLMN in the actual environment that selection AS layer reports carries out resident.Among the present invention, if do not search residential quarter or the resident failure on the residential quarter of the PLMN of the appointment first time of the PLMN of appointment for the first time, then the AS layer reports the NAS layer with all PLMN that frequency sweep obtains, compare by the PLMN that relatively reports and the PLMN that reads, PLMN in the actual environment that selection AS layer reports carries out resident, the NAS layer can find the higher PLMN of priority rapidly like this, has improved efficient resident and registration greatly, for the time has been saved in the service of obtaining of user's quick turn-on.
Below in conjunction with accompanying drawing and preferred implementation technical solution of the present invention is elaborated.
With reference to shown in Figure 1, for the invention provides the embodiment of PLMN system of selection, may further comprise the steps:
The user is by MMI (Man Machine Interface, Man Machine Interface) input " POWER_ON " power-on command, and the NAS initialization apparatus is opened radio frequency, returns " POWER_OK " to MMI then, starts shooting successfully.
USIM represents the application interface of SIM card.The NAS layer is initiated the Card Reader request by " UICC_INI_REQ " message to USIM, obtains resident essential PLMN information, comprises RPLMN, HPLMN, EHPLMN tabulation, information such as UPLMN, OPLMN.
The NAS layer is initiated boot stay request by " COPS_REQ ".
The NAS layer is according to the PLMN information obtained, determines the PLMN of the appointment first time of carrying in boot stay request.For instance, if comprise RPLMN and EHPLMN in the information of PLMN, then the PLMN of appointment for the first time comprises RPLMN and EHPLMN, and this EHPLMN refers to the highest PLMN of EHPLMN tabulation medium priority.Do not comprise the EHPLMN tabulation if comprise RPLMN in the information of PLMN, then the PLMN of appointment for the first time comprises RPLMN and HPLMN, because HPLMN itself is IMSI (International Mobile Subscriber Identity, international mobile subscriber identity) part is so necessarily comprise HPLMN in the PLMN information that reads.If do not comprise RPLMN and EHPLMN in the information of PLMN, then the PLMN of appointment for the first time includes only HPLMN.More than only be a concrete example of the present invention about the explanation of the PLMN of the appointment first time, the present invention is not limited only to this, the PLMN of appointment for the first time can also comprise UPLMN or OPLMN.According to actual needs, determine the included content of PLMN of appointment for the first time.
After step 104, AS layer are received boot stay request, initiate frequency sweep and carry out Cell searching, PLMN is carried out in the residential quarter that searches check, if search the residential quarter of the PLMN of appointment for the first time, execution in step 105; If do not search the residential quarter of the PLMN of appointment for the first time, execution in step 106;
The residential quarter of the PLMN of step 105, selection appointment is for the first time carried out resident, judges whether resident success, if finish; Otherwise, execution in step 106;
If the PLMN of appointment for the first time includes only HPLMN, if search the residential quarter of HPLMN, then select the residential quarter of HPLMN to carry out resident.
If the PLMN of appointment for the first time comprises RPLMN and HPLMN, the residential quarter of HPLMN if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, is selected to reside in the preferential residential quarter of selecting to reside in RPLMN.Further, can adopt following method to select the residential quarter to carry out resident: if at first search the residential quarter of RPLMN, then to select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident; If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN.
If the PLMN of appointment for the first time comprises RPLMN and EHPLMN, the residential quarter of EHPLMN if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, is selected to reside in the preferential residential quarter of selecting to reside in RPLMN.Further, can adopt following method to select the residential quarter to carry out resident: if at first search the residential quarter of RPLMN, then to select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident; If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
In the present embodiment, if comprise RPLMN in the PLMN information that reads, then the NAS layer is with RPLMN and HPLMN, perhaps RPLMN and EHPLMN are carried at and together are handed down to the AS layer in the boot stay request, the AS layer is together searched for this two residential quarters, has avoided elder generation that RPLMN is carried out resident request, again twice signalling interactive process that HPLMN or EHPLMN are carried out resident request, save the processing time, improved treatment effeciency.
Step 106, AS layer report the NAS layer with all PLMN that frequency sweep obtains, and the NAS layer compares the PLMN that reports and the PLMN that reads, and select PLMN to carry out resident.
When on the residential quarter of the PLMN that does not search appointment for the first time or the residential quarter at the PLMN of the appointment first time during resident failure, the AS layer is stored the residential quarter of all PLMN that frequency sweep obtains, reports the NAS layer together after the frequency sweep end.The NAS layer receives the PLMN that reports, with its with from card or the PLMN that reads in the memory compare, filter out both common PLMN, and common PLMN carried out prioritization.Under automatic mode, select the highest PLMN of its medium priority to carry out resident; Under manual mode, common PLMN is notified to the user, the PLMN that selects according to the user carries out resident.Particularly, the NAS layer is initiated resident request to the AS layer again, the PLMN (this PLMN is as the PLMN of the appointment second time) that comprises selection in this resident request, the AS layer carries out resident at the PLMN of this appointment second time, after resident success, the NAS layer is received the resident successful respond that the AS layer sends, and initiates the registration request, thereby obtains normal service.
In the present embodiment, the PLMN that the AS layer reports all is results that the actual frequency sweep of AS layer obtains, and through the screening of NAS layer, weeds out the situation of (F) PLMN of similar forbidding, makes success rate resident and registration improve greatly.
With reference to shown in Figure 2, for the invention provides the embodiment of PLMN choice device, present embodiment comprises: read module 11, request module 12, frequency sweep module 13 and resident module 14, wherein:
After read module 11 is used for the subscriber equipment start, from usim card or nonvolatile memory, read the information of PLMN; Request module 12 is used for initiating boot stay request, and this boot stay request comprises the PLMN of appointment for the first time; Frequency sweep module 13 is used for initiating frequency sweep and carries out Cell searching; Resident module 14 is used for then selecting the residential quarter of the PLMN of appointment for the first time to carry out resident if search the residential quarter of the PLMN of appointment for the first time; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, the AS layer reports the NAS layer with all PLMN that frequency sweep obtains, the NAS layer compares the PLMN that reports and the PLMN that reads, and the PLMN in the actual environment that selection AS layer reports carries out resident.
For instance, if comprise RPLMN and EHPLMN in the information of PLMN, then the PLMN of appointment for the first time comprises RPLMN and EHPLMN; Do not comprise EHPLMN if comprise RPLMN in the information of PLMN, then the PLMN of appointment for the first time comprises RPLMN and HPLMN; If do not comprise RPLMN and EHPLMN in the information of PLMN, then the PLMN of appointment for the first time includes only HPLMN.
Further, if the PLMN of appointment for the first time includes only HPLMN, resident module 14 is further used for then selecting the residential quarter of HPLMN to carry out resident if search the residential quarter of HPLMN;
If the PLMN of appointment for the first time comprises RPLMN and HPLMN, resident module 14 is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, selects to reside in the residential quarter of HPLMN.Further, resident module 14 can specifically be used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident; If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN;
If the PLMN of appointment for the first time comprises RPLMN and EHPLMN, resident module 14 is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, selects to reside in the residential quarter of EHPLMN.Further, resident module 14 can specifically be used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident; If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
Further, resident module 14 is further used under automatic mode, and the NAS layer is searched common PLMN in the PLMN that reports and the PLMN that reads, and selects the highest PLMN of its medium priority to carry out resident; Under manual mode, the NAS layer searches that common PLMN is notified to the user in the PLMN that reports and the PLMN that reads, and the PLMN that selects according to the user carries out resident.
PLMN system of selection provided by the invention and device, if do not search residential quarter or the resident failure on the residential quarter of the PLMN of the appointment first time of the PLMN of appointment for the first time, then the AS layer reports the NAS layer with all PLMN that frequency sweep obtains, compare by the PLMN that relatively reports and the PLMN that reads, select PLMN to carry out resident, the NAS layer can find the higher PLMN of priority rapidly like this, has improved efficient resident and registration greatly, for the time has been saved in the service of obtaining of user's quick turn-on.
At last; it should be noted that: more than what enumerate only is specific embodiments of the invention; certainly those skilled in the art can change and modification the present invention; if these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, all should think protection scope of the present invention.
Claims (10)
1. a public land mobile communication network selection method is characterized in that, comprising:
After the subscriber equipment start, Non-Access Stratum reads the information of public land mobile communication network PLMN from USIM usim card or nonvolatile memory;
Non-Access Stratum is initiated boot stay request to Access Layer, and described boot stay request comprises the PLMN of appointment for the first time;
Access Layer is initiated frequency sweep and is carried out Cell searching, if search the residential quarter of the PLMN of the described appointment first time, then selects the residential quarter of the PLMN of the described appointment first time to carry out resident; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, Access Layer reports Non-Access Stratum with all PLMN that frequency sweep obtains, Non-Access Stratum compares the PLMN that reports and the PLMN that reads, filter out both common PLMN, select the PLMN among described both common PLMN to carry out resident.
2. method according to claim 1, it is characterized in that, if comprise registration public land mobile communication network RPLMN and equity ownership public land mobile communication network EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and EHPLMN; Do not comprise EHPLMN if comprise RPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and ownership public land mobile communication network HPLMN; If do not comprise RPLMN and EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time includes only HPLMN.
3. method according to claim 2 is characterized in that:
If the PLMN of the described appointment first time includes only HPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: if search the residential quarter of HPLMN, then to select the residential quarter of described HPLMN to carry out resident;
If the PLMN of the described appointment first time comprises RPLMN and HPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described if search the residential quarter of the PLMN of appointment for the first time, then select the residential quarter of the PLMN of the described appointment first time to carry out resident comprising: the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of EHPLMN.
4. method according to claim 3 is characterized in that:
Described preferential selection resides in the residential quarter of RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, the residential quarter of selecting to reside in HPLMN comprises:
If at first search the residential quarter of RPLMN, then select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident;
If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN;
Described preferential selection resides in the residential quarter of RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, the residential quarter of selecting to reside in EHPLMN comprises:
If at first search the residential quarter of RPLMN, then select the residential quarter of this RPLMN to carry out resident; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident;
If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
5. method according to claim 1 is characterized in that, described Non-Access Stratum compares the PLMN that reports and the PLMN that reads, and filters out both common PLMN, selects the PLMN among described both common PLMN to carry out resident comprising:
Under automatic mode, Non-Access Stratum is searched common PLMN in the PLMN that reports and the PLMN that reads, and selects the highest PLMN of its medium priority to carry out resident;
Under manual mode, Non-Access Stratum searches that common PLMN is notified to the user in the PLMN that reports and the PLMN that reads, and the PLMN that selects according to the user carries out resident.
6. a public land mobile communication network choice device is characterized in that, comprising:
Read module after the subscriber equipment start, reads the information of public land mobile communication network PLMN from USIM usim card or nonvolatile memory;
Request module is used for initiating boot stay request, and described boot stay request comprises the PLMN of appointment for the first time;
The frequency sweep module is used for initiating frequency sweep and carries out Cell searching;
Resident module is used for then selecting the residential quarter of the PLMN of the described appointment first time to carry out resident if search the residential quarter of the PLMN of the described appointment first time; If do not search residential quarter or the resident failure of the PLMN of appointment for the first time, Access Layer reports Non-Access Stratum with all PLMN that frequency sweep obtains, Non-Access Stratum compares the PLMN that reports and the PLMN that reads, filter out both common PLMN, select the PLMN among described both common PLMN to carry out resident.
7. device according to claim 6, it is characterized in that, if comprise registration public land mobile communication network RPLMN and equity ownership public land mobile communication network EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and EHPLMN; Do not comprise EHPLMN if comprise RPLMN in the information of described PLMN, then the PLMN of the described appointment first time comprises RPLMN and ownership public land mobile communication network HPLMN; If do not comprise RPLMN and EHPLMN in the information of described PLMN, then the PLMN of the described appointment first time includes only HPLMN.
8. device according to claim 7 is characterized in that:
If the PLMN of the described appointment first time includes only HPLMN, described resident module is further used for then selecting the residential quarter of described HPLMN to carry out resident if search the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and HPLMN, described resident module is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, selects to reside in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described resident module is further used for the preferential residential quarter of selecting to reside in RPLMN, if do not search the residential quarter of RPLMN or resident failure on the residential quarter of RPLMN, select to reside in the residential quarter of EHPLMN.
9. device according to claim 8 is characterized in that:
If the PLMN of the described appointment first time comprises RPLMN and HPLMN, described resident module is further used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of HPLMN, then select the residential quarter of this HPLMN to carry out resident; If at first search the residential quarter of HPLMN, it is resident then to select the residential quarter of this HPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of HPLMN;
If the PLMN of the described appointment first time comprises RPLMN and EHPLMN, described resident module is further used for then selecting the residential quarter of this RPLMN to carry out resident if at first search the residential quarter of RPLMN; If resident failure continues frequency sweep and carries out Cell searching, search the residential quarter of EHPLMN, then select the residential quarter of this EHPLMN to carry out resident; If at first search the residential quarter of EHPLMN, it is resident then to select the residential quarter of this EHPLMN to carry out, and continues frequency sweep and carries out Cell searching, if search the residential quarter of RPLMN, then selects the residential quarter of this RPLMN to carry out resident; If do not search the residential quarter of RPLMN, then keep residing in the residential quarter of EHPLMN.
10. device according to claim 6 is characterized in that, described resident module is further used under automatic mode, and Non-Access Stratum is searched common PLMN in the PLMN that reports and the PLMN that reads, and selects the highest PLMN of its medium priority to carry out resident; Under manual mode, Non-Access Stratum searches that common PLMN is notified to the user in the PLMN that reports and the PLMN that reads, and the PLMN that selects according to the user carries out resident.
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| CN 201010282184 CN101932079B (en) | 2010-09-10 | 2010-09-10 | Public land mobile communication network selection method and device |
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| CN 201010282184 CN101932079B (en) | 2010-09-10 | 2010-09-10 | Public land mobile communication network selection method and device |
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