CN102118839B - PLMN (Public Land Mobile Network) network selecting method of multimode terminal - Google Patents
PLMN (Public Land Mobile Network) network selecting method of multimode terminal Download PDFInfo
- Publication number
- CN102118839B CN102118839B CN200910250834.7A CN200910250834A CN102118839B CN 102118839 B CN102118839 B CN 102118839B CN 200910250834 A CN200910250834 A CN 200910250834A CN 102118839 B CN102118839 B CN 102118839B
- Authority
- CN
- China
- Prior art keywords
- plmn
- layer
- network
- terminal
- list
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title abstract description 41
- 238000010187 selection method Methods 0.000 claims description 14
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 29
- 238000013461 design Methods 0.000 abstract description 8
- 238000010295 mobile communication Methods 0.000 abstract description 8
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 5
- 101150096310 SIB1 gene Proteins 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention provides a PLMN (Public Land Mobile Network) network selecting method of a multimode terminal, comprising the steps: when an access mode is LTE (Long Term Evolution) and an access stratum (AS) is in PLMN searching, searched cells with signals are stored in the AS layer; the AS of the terminal leads PLMN_IdentityList of all the cells and signal intensity to form a PossiblePLMN(maxPlmnNum) list; all the lists are reported to a non-access stratum (NAS) together; the PLMN network selecting process of the LTE access technology is fused to the PLMN network selecting method of a GSM (Global System for Mobile Communication) and TD-SCDMA (Division-Synchronization Code Division Multiple Access) dual-mode terminal. In the PLMN network selecting method provided by the invention, the problems that in the GSM or TD-SCDMA system, one cell only has one PLMN identification and one cell of the LTE can affiliate to different PLMN networks possibly are effectively solved, the characteristics of the existing GSM-TD-SCDMA system are fully utilized, the terminal design is simplified and the hardware cost is reduced.
Description
Invention field
The present invention is mainly concerned with the actualizing technology of terminal in mobile communication, the particularly network selection technology of the public land mobile network (be called for short PLMN) of multimode terminal, emphasis solves the terminal PLMN network selection problem how increasing third generation partner program (being called for short 3GPP) Long Term Evolution (abbreviation LTE) access technology on the basis of the dual-mode terminal of current second generation global system for mobile communications (being called for short GSM) and 3-G (Generation Three mobile communication system) (being called for short TD-SCDMA).
Technical background
Along with people are to the increase of mobile communication demand, mobile communication technology obtains unprecedented development, and from mobile communication, the second generation digital mobile communication of first generation simulation, 3G (Third Generation) Moblie is till now obtained for and develops fast.At present, GSM and TD-SCDMA dual-mode terminal technology is ripe and obtain well commercial popularization.In recent years, the development of LTE technology is swift and violent, future for a long time within, it is an inexorable trend that GSM network, TD-SCDMA network and LTE network coexist.In China, China Mobile proposes the demand to multimode terminal (supporting the terminal of GSM, TD-SCDMA, LTE tri-kinds of access technologies) in addition, so support that the terminal of multiple access technology will be the development trend of future terminal.
At present, describe according to chapter 5 in 3GPP TS24.007V8.2.0 version, the protocol frame of GSM and TD-SCDMA dual-mode terminal specific implementation can be drawn as shown in Figure 1, in TD-SCDMA and gsm system, because TD-SCDMA and GSM makes a big difference in the occupation mode of Radio Resource, so identical implementation method can not be used completely on Access Layer and physical layer, so employ different Access Layers and physical layer realizes.But on Non-Access Stratum (being called for short NAS), TD-SCDMA has continued to use the NAS layer technology of GSM substantially, the mobile management module (being called for short MM/GMM) of NAS layer, Call Control Block (being called for short CC), session management (being called for short SM) can continue to use original GSM technology substantially, therefore realize have employed the shared mode of NAS layer at TD-SCDMA and GSM dual-mode terminal.And in TD-SCDMA and GSM dual-mode design, although PLMN network is selected the function being summed up as MM layer by standard, and in GSM terminal in early days, the function of PLMN network selection has been determined to be completed by MM module, only supporting the terminal of circuit domain (being called for short CS territory), still quite reasonable in realization, but after having there is packet-switched domain (being called for short PS territory), PLMN network selection functional is still realized seeming very unreasonable by CS territory mobile management (being called for short MM layer), there is a kind of situation is clearly exactly only support the terminal in PS territory, still need to start MM layer, so the terminal designed afterwards, the common ground usually proposing MM and GMM forms a mobile management module (being called for short MMC).Wherein PLMN network selection procedures is stripped out from MM module, come by MMC, as shown in Figure 2, the method has more detailed introduction at the papers written by postgraduates " research of TD-SCDMA/GSM dual-mode terminal protocol test " (author: Dai Dandan) of Chongqing Mail and Telephones Unvi 2007.
In order to simplify the design of terminal, in GSM/TD-SCDMA/LTE multimode terminal, must consider that whether the certain module in LTE terminal agreement can share with original GSM/TD-SCDMA dual-mode terminal, or some flow process can share.First the illustratively protocol frame of LTE terminal.According to the description of 3GPP TS 24.007V8.2.0 chapter 5, the higher-layer protocols of LTE realize framework as shown in Figure 3, the NAS layer protocol framework of LTE terminal had a very large change with originally comparing, EMM, ESM and ESMS can not share with MM, GMM, the SM in original GSM/TD-SCDMA system or other modules, but according to the description of 3GPP TS23.122V9.0.0 chapter 4, the flow process of their network selection is closely similar and can share.So the NAS layer protocol framework of GSM, TD-SCDMA and LTE terminal can be designed to the structure of Fig. 4, in the diagram, the basis of the implementation of double-mode GSM and TD-SCDMA adds ESM, ESMS and EMM module, and the mobile management of terminal is completed by EMM module, but the network selection realization flow in LTE still can share with the network selection flow process in GSM/TD-SCDMA dual-mode terminal, namely the network selection function in LTE is realized in MMC.Therefore, how the network selection in the network selection flow process in LTE and original GSM/TD-SCDMA bimodulus being merged is exactly a problem that must consider.
According to the description of 3GPP TS23.122 and TS31.102, there are four class PLMN in the usim card of terminal, first is PLMN home network (being called for short EHPLMN) of equal value, second be the PLMN list (be called for short HPLMN list), the 3rd of limit priority is the PLMN list (being called for short OPLIMN list) that operator controls, and the 4th is the PLMN list (being called for short: UPLMN list) that user controls.Their priority is EHPLMN list, HPLMN list, OPLMN list and UPLMN list successively.In the PLMN list of every class, when usim card is preserved, be also successively from the high PLMN network of priority to the low PLMN network of priority.In automatic PLMN network selection procedures, the PLMN network resident that the MMC module of terminal will select priority the highest automatically; In manual PLMN network selection, then terminal is up to minimum list view with priority all the time on screen.According to the requirement of 3GPPTS23.122, Fig. 5 is the automatic PLMN selection course of terminal in GSM and TD-SCDMA bimodulus.Idiographic flow is as follows:
First: starting up of terminal process, first terminal carries out the search procedure registering PLMN (being called for short RPLMN) network.(be called for short SIM/USIM) if the subscriber identification card in terminal and be initial to use or RPLMN does not have signal, what start to carry out PLMN network searches network process.
Second: the AS Access Layer of terminal, according to the order from NAS Access Layer, start PLMN search procedure, the PLMN of signal that has all for terminal present position is reported NAS layer by AS layer.
The PLMN network list of signal is had to be defined as: PossiblePLMN [maxPlmnNum].In this variable, maxPlmnNum indicates the number of signal PLMN network, PossiblePlMN be by Mobile Country Code MCC (be called for short: MCC) and Mobile Network Code (be called for short: MNC) and and respective cell broadband power (abbreviation: RSSI) measured value is formed jointly.
If the maxPlmnNum in PossiblePLMN [maxPlmnNum] is zero, then represent that terminal is in the loss area of coverage, so terminal is in dummy status (being called for short: NULL state)
3rd: PossiblePLMN [maxPlmnNum] list that the NAS layer of terminal reports according to AS, and the priority list of EHPLMN, HPLMN, OPLMN, UPLMN that SIM/USIM card is determined, generate the selective listing of a PLMNSelectionTable [maxPlmnNum], concrete with reference to 3GPPTS23.122V9.0.0 specification.
4th: if PLMNSelectionTable [] is empty, then represent that terminal is in the loss area of coverage, terminal is in dummy status (being called for short: NULL state).
5th: after the NAS layer of terminal selectes the highest PLMN network of priority, by the wireless heterogeneous networks module (being called for short RRC) of selected PLMN network advertisement Access Layer, the deciphering carrying out system message is controlled by RRC, and the judgement of the resident condition in community.Process is registered by last NAS floor by enterprising for the community normally resident at RRC line position district.
6th: if terminal can be normally resident, then terminal completes the selection course of whole PLMN, enters normal resident state, exit PLMN and select flow process; Otherwise enter the 7th step;
RRC can resident condition be on a PLMN network, first, has the cell signal quality of this PLMN to meet the resident condition (the concrete description with reference to the resident condition criterion in TS36.304 small area) of terminal.
7th: first originally selected PLMN network is deleted by terminal from PLMNSelectionTable [] list, turns back to the 4th step afterwards, select the PLMN of suboptimum to carry out resident judgement.
Above be exactly the flow process that the automatic PLMN network of current TD-SCDMA and GSM dual-mode terminal is selected, the network selection process of PLMN, mainly under the cooperation of Access Layer, completes in the MMC module of terminal.
For LTE system, upper-layer protocol framework as shown in Figure 4.EMM module and GMM module closely similar, in the selection of PLMN network, LTE has continued to use structure and the content of original SIM/USIM card, saves the structure of original variety classes PLMN list, so the PLMN network of GSM and TD-SCDMA bimodulus is selected to go for LTE system generally.
But the PLMN in LTE system in the network planning or and made a big difference in the past, be embodied in original GSM or TD-SCDMA system, any one is community independently, only be under the jurisdiction of a PLMN network, namely any one community only only has a PLMN mark (being called for short PLMN ID=MCC+MNC).But a community in LTE may be under the jurisdiction of different PLMN network lists.Specifically see the PLMN information comprised in the SIB1 in TS36.331.In this, PLMN and GSM, the TD-SCDMA of LTE system are very different in network processes.In design, if the PLMN network directly increasing LTE on the basis that the PLMN network of GSM and TD-SCDMA bimodulus is selected is selected to be not all right certainly.Carry out in the PLMN network selection of LTE in terminal, the simplest method is exactly the PLMN of LTE network selection and GSM, TD-SCDMA network selection module are separated completely.Namely GSM, TD-SCDMA use the PLMN network selection module of oneself, and LTE also uses the network selection module of oneself.Only analyzing from the angle realized, be no problem, but there is following problem in it:
First: because the PLMN of LTE connecting system selects substantially identical with the PLMN selection mode of GSM, TD-SCDMA bimodulus, only local is different.If redesign the terminal LTE network module of complete set, then can not embody the continuity of terminal software design.
Second: redesign a set of and that GSM, TD-SCDMA bimodulus is similar PLMN mixed-media network modules mixed-media, the program area having oneself special due to each module and variable uses region, necessarily increase the demand of terminal to content, add the hardware cost of terminal.
3rd: in the tri-mode terminal design carrying out GSM, TD-SCDMA, LTE, relation between these three kinds of access technologies does not isolate completely, such as a kind of or two kinds of access technology patterns are in the situation of losing and covering, the PLMN that can open three-mode selects, if GSM, TD-SCDMA and LTE are in different program modules, necessarily increase the complexity of task coordinate between disparate modules, be unfavorable for the simplification of Terminal Design and the stable of terminal software code.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of multimode terminal PLMN network selection method simplifying Terminal Design, reduce hardware cost, by the PLMN network selection procedure merging of LTE access technology in GSM, TD-SCDMA dual-mode terminal PLMN network selection method.
For overcoming the above problems, the invention provides a kind of multimode terminal PLMN network selection method, as shown in Figure 7, when LTE is access module, the scheme adopted comprises:
The community of signal that has searched, when carrying out PLMN search, is kept at AS layer by Access Layer AS; Preserve content and comprise maximum number maxDetectableCellNum, cell ID Cell physical ID, PLMN train table PLMN_IdentityList and signal strength signal intensity signalStrength that AS layer can search out signal cell;
The PLMN_IdentityList list of each community and signalStrength are formed possible PLMN network list PossiblePLMN [maxPlmnNum] by AS layer, report Non-Access Stratum NAS;
Preferably, when AS layer generates possible PLMN network list, delete the network that identical PLMN identifies, using the signal strength signal intensity of the strongest cell signal strength as the PLMN network retained.
The possible PLMN network list that NAS layer reports according to AS layer, selects the PLMN network that a priority is the highest, requires AS to carry out normally resident.
Described priority is for be sorted on earth by height according to signal strength signal intensity;
Preferably, described priority is sorted by particular order by high level;
Preferably, described priority is the network order sequence that user selectes;
After AS layer receives the PLMN network from NAS layer, if it is normal that AS layer understands system message, and meet the resident condition in community, then normally resident and report NAS, otherwise in possible PLMN network list, select suboptimum community to judge whether to meet resident condition (the resident condition in community: cell signal quality standard s > 0), by that analogy, if the PLMN community that NAS layer is specified does not satisfy condition, then AS reports NAS layer, and request NAS layer selects other PLMN networks.
Compared with prior art, the present invention is when access module is LTE, Access Layer AS is when carrying out PLMN search, the community of signal that has searched is kept at AS layer, the PLMN_IdentityList list of each community and signal strength signal intensity are formed possible PLMN network list PossiblePLMN [maxPlmnNum] by the AS layer of terminal, report Non-Access Stratum NAS, by the PLMN network selection procedure merging of LTE access technology to GSM, in TD-SCDMA dual-mode terminal PLMN network selection method, efficiently solve GSM or TD-SCDMA system, community only has a PLMN mark and LTE community may be under the jurisdiction of the problem of different PLMN networks, and take full advantage of GSM/TD-SCDMA existing system feature, simplify Terminal Design, reduce hardware cost.
Accompanying drawing explanation
Fig. 1 is prior art TD-SCDMA and GSM dual-mode terminal high layer software framework map
Fig. 2 is prior art GSM/TD-SCDMA dual-mode terminal protocol frame figure
Fig. 3 is prior art LTE terminal agreement basic boom figure
Fig. 4 is prior art GSM, TD-SCDMA and LTE multimode terminal upper-layer protocol framework map
Fig. 5 is prior art GSM and TD-SCDMA dual-mode terminal automatic PLMN network selection flow chart
Fig. 6 is multimode terminal PLMN network selection preferred embodiment overview flow chart of the present invention
Fig. 7 is multimode terminal PLMN network selection flow chart of the present invention
Fig. 8 is that preferred embodiment flow chart is selected in multimode terminal RRC community of the present invention
Fig. 9 is that multimode terminal RRC of the present invention collects the PLMN list process flow chart having signal
Figure 10 is PLMNSelectionTable generative process flow chart in multimode terminal NAS of the present invention
Embodiment
Clearly understand to make object of the present invention, technical scheme and advantage, below in conjunction with drawings and Examples, be described in further detail a kind of multimode terminal PLMN of the present invention network selection method, known implementation no longer describes in detail, to avoid there is unnecessary obscuring with content of the present invention.
Fig. 6 is GSM, TD-SCDMA and LTE multimode terminal PLMN network selection preferred embodiment overview flow chart of the present invention (the present embodiment selects LTE to be access module), Fig. 8 is wherein RRC cell-reselection procedure figure, Fig. 9 is that wherein RRC collects the PLMN list process flow chart having signal, Figure 10 is wherein PLMNSelectionTable generative process flow chart in NAS, and idiographic flow is described below:
First: GSM, after the tri-mode terminal of TD-SCDMA and LTE is started shooting, if preserve RPLMN network in SIM/USIM, then NAS layer sends the AS layer of corresponding access technology (if the access technology of correspondence is GSM according to the PLMN network identity that RPLMN determines, then send the RR layer of GSM, if the access technology of correspondence is TD-SCDMA, then be sent to the rrc layer of TD-SCDMA, if the access technology of correspondence is LTE, be then sent to the rrc layer of LTE).If RPLMN does not exist, so PLMN network of will determining according to the limit priority in EHPLMN network list of terminal, and the access technology of correspondence carries out PLMN selection, selected PLMN network SelectedPLMN is sent to RRC module by the NAS layer of terminal;
In the access of reality is selected, usually there are two kinds of methods, a kind of is that terminal carries out the selection of access technology according to the preferred order that user interface sets, and another is then the self-determining preferred order of terminal; The present invention does not limit the selection mode that end-on enters technology.
In the present embodiment, the access technology that recommendation user priority is selected, assuming that access technology corresponding to RPLMN is LTE, NAS layer, selected access technology is LTE.
The PLMN network of specifying according to NAS is carried out community selection by second: RRC module, first terminal carries out system message deciphering by the community of the PLMN specified, then calculating (the resident condition in community: cell signal quality standard s > 0 of resident condition is carried out according to the measurement of the resident parameter in system message and this community, the requirement of the computing reference 3GPP TS36.304 of s), if s > 0, the wireless quality of Ze Gai community meets resident condition, otherwise terminal can not normally reside in this community.With reference to 6 in figure 6,8 steps.If the PLMN network of specifying does not search applicable community, then terminal will initiate PLMN search procedure, and the RRC of terminal will require that physical layer searches for all PLMN networks having signal.Form a PossiblePLMN list, report NAS layer.How RRC generates PossiblePLMN list, and the RRC with reference to figure 9 collects the PLMN list process having signal.
The RRC of three: LTE collects PossiblePLMN list and has only included LTE signal PLMN network list.The access technology selected due to the present embodiment is LTE, so in the PLMN selection course of LTE, the PLMN network of terminal prioritizing selection LTE, with reference to 7 in figure 6,9 steps, (terminal is when generation PLMNSelectionTable, do not consider the PLMN network of non-LTE access technology), the concrete generative process of PLMNSelectionTable, please refer to the product process of PLMNSelectionTable in the NAS of Figure 10.
4th: the NAS layer of terminal takes out the PLMN network of limit priority from the PLMN list of PLMNSelectionTable, delivers to AS layer, require on the resident PLMN network cell to specifying of AS layer.With reference to 11,12,15 steps of figure 6.On the how resident PLMN network to specifying of RRC, can the RRC cell-reselection procedure of reference diagram 8.
5th: if in the 4th process, the RRC community selected meets resident condition, then RRC notifies the resident result of NAS layer.If RRC does not find the community of specifying PLMN network conforms resident, RRC also notifies NAS layer, and NAS layer, by not having the PLMN of successful persistent district, is deleted from PLMNSelectionTable.Now, if PLMNSelectionTable is an empty list, then terminal is carried out limited resident or enter and lose covering state.As 13 in Fig. 6,16,17,11 steps.
Fig. 7 is that wherein RRC selects the process of community.Be specifically described as follows:
First: the RRC of terminal receives and selects fixed SelectedPLMN network from NAS layer, first RRC is identified in s_detectablecelllist list according to PLMN and finds corresponding community, if SelectedPLMN standard exists multiple community in s_detectablecelllist list, then RRC selects the strongest StrongestCell community of signal to process.As 1 in Fig. 7,2 steps.
Second: the RRC of terminal carries out system message deciphering to selected StrongestCell community, and the resident condition in the community determining whether to meet terminal.As Fig. 7 the 4th, 5 steps.
3rd: if StrongestCell community meets normal resident condition, then RRC notifies that the SelectedPLMN network selected of NAS, NAS has applicable community can be resident.Otherwise RRC is by other communities of retry PLMN network.As 6 in Fig. 7,7 steps.Until community retry corresponding to all SelectedPLMN is complete.
Fig. 8 is that wherein RRC collects the PLMN list process having signal.Be specifically described as follows:
First: first RRC requires that physical layer carries out blind searching on the working frequency range of LTE, and physical layer allly has the LTE community of signal all to report RRC module by searching.As Fig. 8 the 1st, 2 steps.If the list PowerSweepList of search is empty, then shows that terminal enters and lose overlay area.
Second: terminal takes out a community successively from PowerSweepList, carry out System information block 1 and (be called for short: deciphering SIB1).In the process understanding SIB1, the reference signal power that physical layer measures this community simultaneously (is called for short: RSRP).The content of RRC according to SIB1 and the value of RSRP, whether the wireless quality of computing terminal meets resident standard.If system message indicates, community is unavailable or this community does not meet wireless resident standard, PLMN_IdentityList corresponding for community is put into the last of PossiblePLMN list, otherwise PLMN_IdentityList is put into before PossiblePLMN list.If the PLMN mark in PLMN_IdentityList exists in PossiblePLMN, then no longer PossiblePLMN is upgraded.Finally community is put in s_detectablecelllist list.As 4 in Fig. 8,5,6 steps.
3rd: repeat successively 3 in Fig. 8,4,5,6,7 steps, until communities all in PowerSweepList all processes.
Fig. 9 is that wherein NAS generates the process of PLMNSelectedTabe, is specifically described as follows:
First: after starting up of terminal, first from SIM/USIM card, read EHPLMN, HPLMN, OPLMN and UPLMN list.The priority relationship of these PLMN lists, please refer to the description of 3GPP TS23.122.Their priority relation is from high to low EHPLMN, HPLMN, OPLMN and UPLMN, and in each list, the network that relative priority is higher is placed on before list.As the 1st step of Fig. 9.In SIM/USIM card, except EHPLMN list, HPLMN, OPLMN, UPLMN contain access technology requirement.
Second: these lists are copied in SimPLMNPriorityList list by the priority relationship of EHPLMN, HPLMN, OPLMN and UPLMN list that terminal provides according to 3GPP TS23.122 successively.If there is the PLMN mark of repetition in EHPLMN, HPLMN, OPLMN and UPLMN list, then with the process of high priority, namely in generation SimPLMNProrityList list process, if network identity Already in SimPLMNProrityList, is then no longer increased in SimPLMNProrityList list.As the 2nd step in Fig. 9.When SimPLMNProrityList produces, only consider the access technology of end-user interface setting.
Three: NAS layer, according to the PossiblePLMN list received from RRC module, checks whether the PLMN network in SimPLMNProrityList list has signal successively.If network in PossiblePLMN list, is not then deleted from SimPLMNPriorityList by the network of correspondence, otherwise by PLMN network-copy in PLMNSelectionTable, and delete from PossiblePLMN list.After checking out the PLMN in all SimPLMNPriorityList, remaining PLMN is also had at PossiblePLMN, then these PLMN are sorted from high to low successively according to signal strength signal intensity, and ranking results is directly increased to after PLMNSelectionTable.As 3 in Fig. 9,4,5 steps.
The present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those skilled in the art are when making various corresponding change or distortion according to the present invention, but these change accordingly or are out of shape the protection range all belonging to the claims in the present invention.
Claims (4)
1. a multimode terminal PLMN network selection method, is characterized in that, when LTE is access module, comprising:
The community of signal that has searched, when carrying out PLMN search, is kept at AS layer by Access Layer AS; Preserve content and comprise maximum number maxDetectableCellNum, cell ID Cell physical ID, PLMN train table PLMN_IdentityList and signal strength signal intensity signalStrength that AS layer can search out signal cell;
The PLMN_IdentityList list of each community and signal strength signal intensity signalStrength are formed possible PLMN network list by AS layer, when AS layer generates possible PLMN network list, delete the network that identical PLMN identifies, using the signal strength signal intensity of the strongest cell signal strength as the PLMN network retained, report Non-Access Stratum NAS;
The possible PLMN network list that NAS layer reports according to AS layer, selects the PLMN network that a priority is the highest, requires AS to carry out normally resident;
After AS layer receives the PLMN network from NAS layer, if it is normal that AS layer understands system message, and meet the resident condition in community, then normally resident and report NAS, otherwise in possible PLMN network list, select suboptimum community to judge whether to meet resident condition, by that analogy, if the PLMN community that NAS layer is specified does not satisfy condition, then AS reports NAS layer, and request NAS layer selects other PLMN networks.
2. multimode terminal PLMN network selection method according to claim 1, it is characterized in that, described priority is for be sorted on earth by height according to signal strength signal intensity.
3. multimode terminal PLMN network selection method according to claim 1, it is characterized in that, described priority is sorted by particular order by high level.
4. multimode terminal PLMN network selection method according to claim 1, is characterized in that, described priority is the network order sequence selected according to user.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250834.7A CN102118839B (en) | 2009-12-30 | 2009-12-30 | PLMN (Public Land Mobile Network) network selecting method of multimode terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910250834.7A CN102118839B (en) | 2009-12-30 | 2009-12-30 | PLMN (Public Land Mobile Network) network selecting method of multimode terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102118839A CN102118839A (en) | 2011-07-06 |
| CN102118839B true CN102118839B (en) | 2015-04-15 |
Family
ID=44217389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910250834.7A Active CN102118839B (en) | 2009-12-30 | 2009-12-30 | PLMN (Public Land Mobile Network) network selecting method of multimode terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102118839B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917420A (en) * | 2011-08-03 | 2013-02-06 | 华为技术有限公司 | Communication system, mobility management entity, base station and switching method for public land mobile network |
| CN102413545B (en) * | 2011-11-23 | 2018-07-20 | 南京中兴新软件有限责任公司 | The network selection method and device of multimode terminal |
| CN102413529A (en) * | 2011-11-28 | 2012-04-11 | 青岛海信移动通信技术股份有限公司 | Multi-mode (including long term evolution (LTE) mode) application method and device of mobile terminal |
| CN103188638B (en) * | 2011-12-28 | 2016-03-02 | 中国电信股份有限公司 | Based on the method and system of optimum roaming list access long-term evolving network |
| CN104168643B (en) * | 2013-05-15 | 2019-02-12 | 中兴通讯股份有限公司 | Resident processing method and processing device |
| CN103298075B (en) * | 2013-06-05 | 2015-12-02 | 天翼电信终端有限公司 | The method of dual-mode terminal fast network selection |
| CN104284368A (en) * | 2013-07-01 | 2015-01-14 | 中兴通讯股份有限公司 | Multi-mode double-standby mobile terminal and network registration method thereof |
| US9883453B2 (en) * | 2013-10-30 | 2018-01-30 | Huawei Device (Dongguan) Co., Ltd. | Method and apparatus for terminal to camp on cell, and mobile terminal |
| US9706485B2 (en) * | 2015-09-30 | 2017-07-11 | Qualcomm Incorporated | Conducting public land mobile network (PLMN) searches in a multi-radio access technology (RAT) environment |
| CN105611583B (en) * | 2016-02-22 | 2019-03-22 | 重庆邮电大学 | A method of shortening multimode user terminal and searches net network selection time delay |
| CN105933954A (en) * | 2016-05-13 | 2016-09-07 | 珠海市魅族科技有限公司 | Method and device for selecting network |
| CN106454969B (en) * | 2016-09-28 | 2019-09-03 | 重庆邮电大学 | A method of accelerating multimode user terminal network selection process |
| CN108024314B (en) | 2016-11-03 | 2021-07-16 | 华为技术有限公司 | Method and device for selecting network |
| US10517039B1 (en) * | 2018-06-20 | 2019-12-24 | Mediatek Inc. | Method and apparatus for mobile country code recognition in mobile communications |
| WO2021203229A1 (en) * | 2020-04-07 | 2021-10-14 | Qualcomm Incorporated | Preventing service loss in non-standalone mode of a shared cell |
| CN116548021A (en) * | 2021-03-23 | 2023-08-04 | Oppo广东移动通信有限公司 | Method, device, equipment and storage medium for selecting network |
| CN113133089B (en) * | 2021-04-28 | 2022-06-17 | 荣耀终端有限公司 | Method and related device for manually searching network |
| CN117280847A (en) * | 2022-03-29 | 2023-12-22 | 北京小米移动软件有限公司 | Access method, device, equipment and storage medium of managed network |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1703111A (en) * | 2004-05-24 | 2005-11-30 | 华为技术有限公司 | Method for selecting networks and cells of multi-mode user equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005269394A (en) * | 2004-03-19 | 2005-09-29 | Nec Corp | Mobile communication terminal, network device, mobile communication system, and method thereof |
| US7236784B2 (en) * | 2004-03-23 | 2007-06-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of and system for selecting a PLMN for network sharing |
| CN101312569B (en) * | 2007-05-25 | 2011-07-20 | 展讯通信（上海）有限公司 | Selection method for mobile phone service network |
-
2009
- 2009-12-30 CN CN200910250834.7A patent/CN102118839B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1703111A (en) * | 2004-05-24 | 2005-11-30 | 华为技术有限公司 | Method for selecting networks and cells of multi-mode user equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102118839A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102118839B (en) | PLMN (Public Land Mobile Network) network selecting method of multimode terminal | |
| US8849299B2 (en) | Cross-technology coverage mapping system and method for modulating scanning behaviour of a wireless user equipment (UE) device | |
| CN104918300B (en) | Device and method for mobile communication | |
| US10142919B2 (en) | Cellular mobile device | |
| KR101010654B1 (en) | System and method for providing operator-differentiated messaging to a wireless user equipment (ue) device | |
| CA2817512C (en) | Cross-technology coverage mapping system and method for modulating scanning behavior of a wireless user equipment (ue) device | |
| KR102144298B1 (en) | Network search method and terminal device | |
| US20110294531A1 (en) | System and Method for Facilitating Accelerated Network Selection Using a Weighted Network List | |
| EP2485539B1 (en) | Network selection method and terminal device | |
| CN102934513A (en) | Multi-card multi-standby terminal, synchronization method and device thereof | |
| KR20010048490A (en) | Method for selection cell of asynchronous mobile station in asynchronous mobile communication system | |
| MXPA06000496A (en) | Scheme for providing regulatory compliance in performing network selection in a foreign country. | |
| CN109429304A (en) | Method for connecting network, device and user terminal | |
| CN113596940B (en) | Cell selection or reselection method and device, and terminal | |
| EP2830363B1 (en) | Mobile terminal and network selection method therefor | |
| US20230098894A1 (en) | Multi-Band Multi-RAT Cell Search | |
| CN112512098B (en) | Cell access method, device and terminal | |
| US20230362804A1 (en) | Network selection method, terminal device, and network device | |
| WO2022183933A1 (en) | Communication method, and device | |
| US20220312306A1 (en) | Manual Network Selection at a User Equipment | |
| CN116828409A (en) | Internet of things quick network searching and injecting method and system of intelligent elevator | |
| CN114501587A (en) | Cell access method and user terminal | |
| CN116647855A (en) | Communication method and communication device | |
| CN114828106A (en) | Method and user terminal for implementing mobility management | |
| CN115486131A (en) | Standalone mode PLMN selection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170426 Address after: Nanping Street 400060 Chongqing Nan'an District Nancheng Road No. 199 left attached to the floor 403 Patentee after: Keen (Chongqing) Microelectronics Technology Co.,Ltd. Address before: 400065 Chongqing Nan'an District huangjuezhen pass Fort Park No. 1 Patentee before: CHONGQING CYIT COMMUNICATION TECHNOLOGIES Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20181105 Address after: 201203 Building 1, exhibition hall, 2288 lane, 2288 Chong, road, Zhangjiang hi tech park, Shanghai Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: 400060 Nanping Road 199, Nanping Street, Nan'an District, Chongqing, 403 Patentee before: Keen (Chongqing) Microelectronics Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200528 Address after: 8-07, building 6, ronghuiyuan, airport economic core area, Shunyi District, Beijing Patentee after: Xin Xin finance leasing (Beijing) Co.,Ltd. Address before: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee before: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201123 Address after: Room 2502, COFCO Plaza, 990 Nanma Road, Nankai District, Tianjin Patentee after: Xin Xin finance leasing (Tianjin) Co.,Ltd. Address before: 8-07, building 6, ronghuiyuan, airport economic core area, Shunyi District, Beijing Patentee before: Xin Xin finance leasing (Beijing) Co.,Ltd. |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20110706 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xin Xin finance leasing (Tianjin) Co.,Ltd. Contract record no.: X2021110000055 Denomination of invention: A network selection method for multi-mode terminal PLMN Granted publication date: 20150415 License type: Exclusive License Record date: 20211227 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230713 Address after: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech park, Spreadtrum Center Building 1, Lane 2288 Patentee after: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Address before: Room 2502, COFCO Plaza, 990 Nanma Road, Nankai District, Tianjin 300100 Patentee before: Xin Xin finance leasing (Tianjin) Co.,Ltd. |