CN100366121C - Method for selecting networks and cells of multi-mode user equipment - Google Patents
Method for selecting networks and cells of multi-mode user equipment Download PDFInfo
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- CN100366121C CN100366121C CNB2004100383753A CN200410038375A CN100366121C CN 100366121 C CN100366121 C CN 100366121C CN B2004100383753 A CNB2004100383753 A CN B2004100383753A CN 200410038375 A CN200410038375 A CN 200410038375A CN 100366121 C CN100366121 C CN 100366121C
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Abstract
The present invention discloses a method for selecting networks and cells by multimode user equipment. The current frequency for spanning the cells is calculated by the user equipment and used as the current moving rate; the networks which are corresponding to the current moving rate and contained in a list of self non-prohibition public land moving networks are selected as matching networks by the user equipment according to the corresponding relation of the self moving rate and the networks; the user equipment selects one final matching network from the matching networks, receives all cell signals capable of being received in the final matching network, and then selects a cell corresponding to the received strongest signal; the cell resides. The method provided by the present invention improves the service quality of the networks, and simultaneously, avoids extra power consumption caused by UE excess switching possibly occurring in a network which is not matched with the moving rate of the UE.
Description
Technical field
The present invention relates to the network selecting technology of subscriber equipment in the mobile communications network (UE), be specifically related to the method for a kind of multimode selecting network by user equipment and sub-district.
Background technology
Along with development of internet technology, there is the wireless network of many application different technologies to move to maturity gradually, and different degree, be used for commercial use to different scales, as Global Systems for Mobile communications (GSM) and code division multiple access (CDMA), Wideband Code Division Multiple Access (WCDMA) networks such as (WCDMA), this just causes the situation that many networks might occur and deposit in same signal coverage.Such as, in same city, be coated with two networks of GSM and WCDMA simultaneously, the area coverage difference of two networks, the application technology difference, the sub-district is divided different, provides the aspects such as scope, ability, quality of business service also all inequality.
In order to make the user can obtain better information service, multimode UE arises at the historic moment, and the user can select to enter any one network in two or more networks that UE supports according to self-demand, enjoys and wishes the relative high-quality service that obtains.Wherein, multimode UE refers to same UE can support two or more networks, and promptly UE can select a network from two or more networks, and a certain sub-district in selected network carries out residently, and then communicates in this network.
After the present multimode UE start, the user can select the network that will enter in public land mobile network (PLMN) the non-PLMN of the forbidding tabulation that list information comprised according to storage in the subscriber identification module (SIM) of UE.Wherein, the PLMN tabulation has comprised the relevant information of current all-network, in the PLMN tabulation, the tabulation of two classes is arranged, and class tabulation is the non-PLMN of forbidding tabulation, comprises the relevant information that UE can enter network in this type of tabulation; Another kind of tabulation is to forbid the PLMN tabulation, comprises the relevant information that UE can not enter network in this tabulation.UE can only enter the network that has in the non-PLMN of the forbidding tabulation, and forbids the network that has in the PLMN tabulation, and UE then can not enter.The mode that the user selects to enter network has two kinds, a kind of mode is: the user is by carrying out manual operation to UE, selects to want the network that enters, or sets a preferred network, then when UE entered common cover regional of a plurality of networks, UE entered the preferred network that the user sets automatically; Another kind of mode is: UE selects first network of listing in the non-PLMN of the forbidding tabulation automatically.Generally, when division of cells being carried out the signal covering, do not have very strict area boundary between any two neighbor cells, signal that might a sub-district has also covered the certain zone that is adjacent the sub-district at its periphery place, and this just makes UE be in simultaneously in the coverage of several cell signals sometimes.So, behind the selected network that will enter of UE, just the signal of different districts in current this network that receives is judged, concrete determination methods is, the signal to noise ratio of each cell signal that the UE contrast receives, UE determines that the relatively large cell signal of signal to noise ratio numerical value is stronger relatively, when UE by after relatively finding a sub-district that signal is the strongest, with regard to resident in this sub-district.
Above-mentioned multimode UE selects the method for network and sub-district that the power of cell signal is judged, and UE is resident in the strongest sub-district of signal, makes the regular traffic of UE be connected with guarantee.But this method has just been selected sub-district that can be resident for UE, and does not select optimum resident network and sub-district for UE.UE is in mobile status many times, and rate travel is slower sometimes, and rate travel is then very fast relatively sometimes.Simultaneously, different networks provides the ability of service different to the UE with different rate travels, and the network that has can provide favorable service to the higher UE of rate travel, as: WCDMA; The network that has then can only provide favorable service to the relatively low UE of rate travel, as: Personal Handyphone System(PHS), when this network that can only provide good service to the relatively low UE of rate travel when the higher relatively UE of rate travel provides service, its service quality can be subjected to very big influence.
In addition, the network that can only provide good service to the relatively low UE of rate travel with can provide the network of good service to compare to the relative higher UE of rate travel, the coverage of cell signal is less relatively, if the UE of a high-speed mobile has selected a network that good service can only be provided to the relatively low UE of rate travel, then carry out in the process in business, UE might stride across several sub-districts, it is less relatively to be limited in the network of UE place the sub-district signal cover, then can produce too much switching.At this moment, network provides the quality of service to be affected to UE, even carries out the also possible call drop of UE of speech business; Simultaneously, too much switching also causes the power consumption of UE to increase.
Summary of the invention
In view of this, main purpose of the present invention is to provide the method for a kind of multimode selecting network by user equipment and sub-district, when improving network service quality, can avoid again UE with the unmatched network of its rate travel in when working, because of the too much switching that might occur causes network service quality to descend and the extra power consumption of UE.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses the method for a kind of multimode selecting network by user equipment and sub-district, the method includes the steps of:
A1. set in advance a time period, according to setting in advance the frequency that subscriber equipment is crossed in the time period number of cells calculates the current leap of subscriber equipment sub-district, as current rate travel;
A2. subscriber equipment is according to the corresponding relation of self rate travel and network, selects corresponding with current rate travel and is contained in self non-network of forbidding in the public land mobile network tabulation, as matching network;
A3. subscriber equipment is selected a final matching network from matching network, and receives all cell signals that can receive in the final matching network, is chosen in the pairing sub-district of peak signal that receives in this final matching network then and carries out resident.
Among the step a3, subscriber equipment finish the sub-district resident after, detect in real time the primary pilot signal that receives, and judge whether this signal changes, if change, then return step a1; Otherwise, continue to detect.
Set in advance the gravity treatment cycle, behind the completing steps a3, judge whether the new gravity treatment cycle begin, if step a1 is then returned in beginning; Otherwise, continue to judge.
Subscriber equipment described in the step a3 selects the method for final matching network to be:
Subscriber equipment judges whether current place network is contained among the matching network, if be contained in wherein, then with the current place of subscriber equipment network as final matching network; Otherwise subscriber equipment is selected a network from matching network, as the final matching network of subscriber equipment.
Subscriber equipment is selected a network from matching network, as the method for the final matching network of subscriber equipment be:
Subscriber equipment selects one to be contained in the non-network of forbidding in the public land mobile network tabulation that minimum quality of service can be provided to it from matching network, as final matching network;
Perhaps subscriber equipment selects one to be contained in the non-network of forbidding in the public land mobile network tabulation that high quality-of-service can be provided to it from matching network, as final matching network;
Perhaps subscriber equipment is chosen one wantonly and is contained in the non-network of forbidding in the public land mobile network tabulation from matching network, as final matching network.
When the user equipment start service request, before step a1, subscriber equipment is initiated service request in the sub-district of its current place network; Then after step a3, in the sub-district that can receive peak signal of subscriber equipment in final matching network, send the corresponding service request to network side.
Compared with prior art, the invention provides the method for a kind of multimode selecting network by user equipment and sub-district, UE obtains the rate travel of oneself according to the frequency of crossing over the sub-district in the moving process, again according to the corresponding relation of different rate travels and heterogeneous networks, select one to be contained in its network that non-PLMN of forbidding tabulates and rate travel current with it mated the most, and then selected sub-district that can receive peak signal in this matching network is carried out resident.Method provided by the invention had both improved network service quality, avoided again simultaneously UE with the unmatched network of its rate travel in, the extra power consumption that causes because of the too much switching that might occur.
Description of drawings
Fig. 1 selects network and sub-district flow chart for UE of the present invention during the free time;
Fig. 2 selects network and sub-district flow chart when initiating service request for UE of the present invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Embodiment one: the method for selecting network and sub-district when UE is idle.
When UE started shooting and do not initiate service request, UE just was in idle condition.At this moment, UE can because of two kinds of situations reselect network and sub-district, this process of reselecting is called the gravity treatment of network and sub-district.
When first kind of situation: UE crosses over the sub-district in moving process, can reselect network and sub-district.
Second kind of situation: operation maintenance center (OMC) is provided with a time period that regular length arranged and reselects cycle of network and sub-district as UE, i.e. in the gravity treatment cycle, UE can reselect network and sub-district when a new gravity treatment cycle begins.Wherein, gravity treatment cycle can be set to the time period of a random length.
UE will reselect network and sub-district when idle condition runs into above-mentioned two kinds of situations, overall system of selection is: the corresponding relation of storing earlier different rate travels and heterogeneous networks in SIM with the speed and the form of network mapping table, afterwards, UE selects the network of coupling earlier according to own current rate travel, select the sub-district that signal is the strongest in this network to carry out resident again.Network in above-mentioned speed and the network mapping table is the network that has in the PLMN tabulation, the i.e. all-network that exists in the prior art.
As shown in Figure 1, UE selects the flow process of network and sub-district specifically to comprise following steps at one's leisure:
Step 105:UE is selecting matching network, and after the resident sub-district that in this matching network, can receive peak signal, just enter idle condition once more, when OMC begins for new gravity treatment cycle of its setting or UE when crossing over the sub-district once more, then return step 101, reanalyse the rate travel of UE.
Embodiment two: the method for selecting network and sub-district when UE initiates service request.
When UE will initiate service request, UE can carry out the gravity treatment of network and sub-district earlier, promptly selected in the network and a resident proper cell in this network of a coupling.Overall network and residence reselecting are: UE selects the network of coupling earlier according to own current rate travel, select the sub-district that signal is the strongest in this network to carry out resident again.
Select the flow process of network and sub-district specifically to comprise following steps when as shown in Figure 2, UE initiates service request:
After step 203～204:UE had determined own current rate travel, according to the speed and the network corresponding relation that are stored among the SIM, whether the network of judging own current place was complementary with oneself current rate travel.
Concrete grammar is: UE is according to the different rate travels of storing among its SIM and the corresponding relation of heterogeneous networks, the network of selecting rate travel current with it to be complementary from the network that the non-PLMN of forbidding tabulation is comprised.Wherein, different rate travels are meant with the corresponding relation of heterogeneous networks: the rate travel of the corresponding certain limit of a certain network; The rate travel of corresponding another scope of another network.But the overlapped part of different rate travel scopes possibilities of heterogeneous networks correspondence, the i.e. current rate travel of UE and two even a plurality of network coupling.Here said coupling is meant: selected network can provide good service to the UE that has current rate travel or have a higher rate travel.
One or more matching networks that UE will select compare with own current place network, if comprise the network at own current place in one or more matching networks that UE selects, UE then thinks own current place network and own current rate travel coupling; Otherwise UE thinks that own current place network and oneself current rate travel do not match.
When the comparing result of UE is own current place network and oneself current rate travel coupling, then enter step 207; When the comparing result of UE does not match for own current place network and own current rate travel, then begin to search for the network that mates with own current rate travel, Search Results might be to have one or more networks that are complementary with the current rate travel of UE.UE will select the matching network that a network conduct that is contained in the non-PLMN of the forbidding tabulation finally searches from one or more matching networks this moment.
If UE does not search matching network, then still reside in the respective cell of current network, and enter step 207; If UE searches matching network, UE just contrasts the signal to noise ratio of each cell signal that can receive in this network, and UE determines that the relatively large cell signal of signal to noise ratio numerical value is stronger relatively.Afterwards, UE carries out resident with regard to selecting a sub-district that can receive peak signal in this matching network.
The corresponding service request that step 207:UE initiates in step 201 in the sub-district of current institute residing network sends to network side.
By the above as can be seen, the method of multimode selecting network by user equipment provided by the present invention and sub-district, improved network service quality, avoided again simultaneously UE with the unmatched network of its rate travel in, the extra power consumption that causes because of the too much switching that might occur.The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the method for multimode selecting network by user equipment and sub-district is characterized in that the method includes the steps of:
A1. set in advance a time period, according to setting in advance the frequency that subscriber equipment is crossed in the time period number of cells calculates the current leap of subscriber equipment sub-district, as current rate travel;
A2. subscriber equipment is according to the corresponding relation of self rate travel and network, selects corresponding with current rate travel and is contained in self non-network of forbidding in the public land mobile network tabulation, as matching network;
A3. subscriber equipment is selected a final matching network from matching network, and receives all cell signals that can receive in the final matching network, is chosen in the pairing sub-district of peak signal that receives in this final matching network then and carries out resident.
2. the method for claim 1 is characterized in that, among the step a3, subscriber equipment finish the sub-district resident after, detect in real time the primary pilot signal that receives, and judge whether this signal changes, if change, then return step a1; Otherwise, continue to detect.
3. the method for claim 1 is characterized in that, sets in advance the gravity treatment cycle, behind the completing steps a3, judges whether the new gravity treatment cycle begin, if step a1 is then returned in beginning; Otherwise, continue to judge.
4. the method for claim 1 is characterized in that, subscriber equipment described in the step a3 selects the method for final matching network to be:
Subscriber equipment judges whether current place network is contained among the matching network, if be contained in wherein, then with the current place of subscriber equipment network as final matching network; Otherwise subscriber equipment is selected a network from matching network, as the final matching network of subscriber equipment.
5. as claim 1 or 4 described methods, it is characterized in that subscriber equipment is selected a network from matching network, be as the method for the final matching network of subscriber equipment:
Subscriber equipment selects one to be contained in the non-network of forbidding in the public land mobile network tabulation that minimum quality of service can be provided to it from matching network, as final matching network;
Perhaps subscriber equipment selects one to be contained in the non-network of forbidding in the public land mobile network tabulation that high quality-of-service can be provided to it from matching network, as final matching network;
Perhaps subscriber equipment is chosen one wantonly and is contained in the non-network of forbidding in the public land mobile network tabulation from matching network, as final matching network.
6. as claim 1 or 4 described methods, it is characterized in that when the user equipment start service request, before step a1, subscriber equipment is initiated service request in the sub-district of its current place network; Then after step a3, in the sub-district that can receive peak signal of subscriber equipment in final matching network, send the corresponding service request to network side.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100383753A CN100366121C (en) | 2004-05-24 | 2004-05-24 | Method for selecting networks and cells of multi-mode user equipment |
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| CNB2004100383753A CN100366121C (en) | 2004-05-24 | 2004-05-24 | Method for selecting networks and cells of multi-mode user equipment |
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| CN100366121C true CN100366121C (en) | 2008-01-30 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101646214B (en) * | 2008-08-08 | 2012-06-20 | 联芯科技有限公司 | Method and device for improving reselection success rate when terminal across accesses technical network |
| US8837426B2 (en) * | 2008-12-19 | 2014-09-16 | Htc Corporation | Method of handling cell selection for in a wireless communication system and related mobile device |
| WO2010072035A1 (en) | 2008-12-26 | 2010-07-01 | 华为终端有限公司 | Network selection method, user equipment and system |
| CN101888680B (en) * | 2009-05-11 | 2013-03-27 | 联芯科技有限公司 | Method for reelecting/switching 2G mode into 3G mode and dual-mode single-standby terminal device |
| CN102118839B (en) * | 2009-12-30 | 2015-04-15 | 重庆重邮信科通信技术有限公司 | PLMN (Public Land Mobile Network) network selecting method of multimode terminal |
| CN102547881B (en) * | 2012-01-20 | 2018-08-31 | 中兴通讯股份有限公司 | A kind of customer equipment controlling method, user equipment and network side equipment |
| CN103813357B (en) * | 2012-11-12 | 2017-07-28 | 展讯通信（上海）有限公司 | For mobile terminal adaptive network searching method and adaptively look for net module |
| CN106255182B (en) * | 2013-08-23 | 2019-09-20 | 青岛海信移动通信技术股份有限公司 | A kind of method and device of data transmission |
| CN104735735B (en) * | 2013-12-19 | 2018-03-23 | ***通信集团公司 | A kind of multi-network interoperability method and device |
| CN106060794B (en) * | 2015-04-06 | 2020-12-29 | 三星电子株式会社 | Method for optimizing cell selection in dual SIM dual standby device |
| CN108632880B (en) * | 2017-03-16 | 2021-11-02 | ***通信有限公司研究院 | Networking working mode selection method, device and terminal |
| CN108632946B (en) * | 2017-03-24 | 2021-06-22 | 华为技术有限公司 | Access control method, terminal and access network equipment |
| CN107734582B (en) * | 2017-11-28 | 2020-07-14 | 中国联合网络通信集团有限公司 | Public land mobile network reselection method and user equipment |
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| CN1261510A (en) * | 1997-06-25 | 2000-07-26 | 诺基亚流动电话有限公司 | Method, base, station, mobile stationand cellular radio system for handover and cell-reselection |
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