CN104469870A - Cell reselection method and LTE (Long-Term Evolution) terminal - Google Patents
Cell reselection method and LTE (Long-Term Evolution) terminal Download PDFInfo
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- CN104469870A CN104469870A CN201310421849.1A CN201310421849A CN104469870A CN 104469870 A CN104469870 A CN 104469870A CN 201310421849 A CN201310421849 A CN 201310421849A CN 104469870 A CN104469870 A CN 104469870A
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- 238000000034 method Methods 0.000 title abstract description 13
- 230000007774 longterm Effects 0.000 title abstract description 5
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000000977 initiatory effect Effects 0.000 claims abstract description 6
- 230000005484 gravity Effects 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
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Abstract
The invention provides a cell reselection method. The method comprises the following steps: acquiring the capability of a mobile terminal; and initiating a reselection request to a current cell, and initiating measurement of neighboring cells of the current cell. The method is characterized by further comprising the following steps: judging whether the acquired capability of the mobile terminal is data-centered or voice-centered; and performing cell reselection according to the capability of the mobile terminal and the measurement information of the neighboring cells. The invention further provides an LTE (Long-Term Evolution) terminal corresponding to the method. The capability of the mobile terminal is classified into a data-centered capability or a voice-centered capability, and cell reselection is performed according to the capability of the mobile terminal, so that high-quality service can be provided for the mobile terminal according to the practical demands of the mobile terminal; the repeated initiation times of cell reselection are reduced; and the efficiency of cell reselection is increased.
Description
Technical field
The present invention relates to mobile communication Long Term Evolution LTE(Long Term Evolution) technical field, particularly relate to a kind of residence reselecting and LTE terminal.
Background technology
Universal land radio access web (the E-UTRAN of evolution, Evolved Universal TerrestrialRadio Access Network) be the evolution accessing network of universal land radio access web (UTRAN), its technology adopted is called Long Term Evolution (LTE) technology.In current communication network, there is dissimilar mobile network, when subscriber equipment (UE, User Equipment) moves in zones of different, need to carry out cell reselection.
Existing residence reselecting roughly comprises: by measuring the signal quality of adjacent cell, arrange the reselecting parameters of adjacent cell according to the signal quality measured, and according to the reselecting parameters arranged, from the adjacent cell measured, gravity treatment is to the community higher than current macro cell rank.
In existing residence reselecting, only consider the height of cell level, but differ and meet the actual demand of mobile terminal surely in the high community of rank, now, must need to reselect, therefore, the existing residence reselecting efficiency based on priority level is lower.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes a kind of residence reselecting and LTE terminal, the efficiency of cell reselection can be improved.
In order to reach the object of the invention, the present invention proposes a kind of residence reselecting, comprising: the ability obtaining mobile terminal; Reselection request is initiated to current area, and initiates to measure to the adjacent cell of described current area; Also comprise:
The ability of mobile terminal judging to obtain is data-centered or centered by voice;
Cell reselection is carried out according to the ability of mobile terminal and the metrical information of adjacent cell.
Further, judge described in that the ability of mobile terminal is for centered by voice; Described cell reselection comprises:
Cell reselection is carried out according to the time delay of the adjacent cell of described current area, shake, packet loss, echo.
Further, the time delay of the described adjacent cell according to described current area, shake, packet loss, echo are carried out cell reselection and are comprised:
Respectively each adjacent cell is calculated according to formula (time delay × 0.4+ shake × 0.1+ packet loss × 0.4+ echo × 0.1);
Sort to the result of calculation calculated, the minimum community of seletion calculation result is re-selecting cell.
Further, judge described in that the ability of mobile terminal is data-centered; Described cell reselection comprises:
Judge that whether the access standard of adjacent cell is identical according to the metrical information of described adjacent cell;
If judge not identical, then sort according to the ability of described adjacent cell place wireless network, the ability of prioritizing selection wireless network the strongest community be re-selecting cell.
Further, if judge that the access standard of the adjacent cell of described current area is identical, also comprise:
Judge that whether the ability of adjacent cell is identical according to the metrical information of described adjacent cell;
If judge that the ability of the adjacent cell of described current area is different, sort according to the ability of described adjacent cell, the community that prioritizing selection ability is the strongest is re-selecting cell.
Further, if judge that the ability of the adjacent cell of described current area is identical, also comprise:
Sort according to the adjacent cell signal strength signal intensity of described current area, the community that prioritizing selection signal is the strongest is re-selecting cell.
The invention allows for a kind of LTE terminal, comprising the acquisition module of the ability for obtaining mobile terminal, for initiating reselection request to current area, and the adjacent cell of described current area being initiated to the measurement module measured, it is characterized in that, also comprise:
Judge module, for judging that the ability of obtained mobile terminal is data-centered or centered by voice, and exports to Executive Module by judged result;
Executive Module, for carrying out cell reselection according to the ability of mobile terminal and the metrical information of adjacent cell.
Further, the judged result that described judge module exports is that described mobile terminal is centered by voice;
Described Executive Module, carries out adjacent cell gravity treatment specifically for the time delay of the adjacent cell according to described current area, shake, packet loss, echo.
Further, the judged result that described judge module exports is that described mobile terminal is data-centered;
Described judge module, also whether identical for judging the access standard of the adjacent cell of described current area, and judged result is exported to Executive Module;
Described Executive Module, receive the judged result from judge module, judged result be the access standard of adjacent cell not identical time, the ability also for the adjacent cell place wireless network according to described current area sorts, and the community that the ability of prioritizing selection wireless network is the strongest is re-selecting cell.
Further, described judge module, when judging that the access standard of adjacent cell is identical, also whether identical for judging the ability of the adjacent cell of described current area, and judged result is exported to Executive Module;
Described Executive Module, receives the judged result from judge module, judged result be the ability of adjacent cell not identical time, the ability also for the adjacent cell according to described current area sorts, and the community that prioritizing selection ability is the strongest is re-selecting cell.
Further, described Executive Module, receives the judged result from judge module, judged result be the ability of adjacent cell identical time, signal strength signal intensity also for the adjacent cell according to described current area sorts, and the community that prioritizing selection signal is the strongest is re-selecting cell.
In embodiments of the invention, the ability of mobile terminal is divided into data-centered and centered by voice, and according to the ability of mobile terminal, gravity treatment is carried out to community, according to the actual needs of mobile terminal for mobile terminal provides quality to serve preferably, thus decrease the number of times repeating to initiate cell reselection, improve the efficiency of cell reselection.
Accompanying drawing explanation
Be described the accompanying drawing in the embodiment of the present invention below, the accompanying drawing in embodiment is for a further understanding of the present invention, is used from explanation the present invention, does not form limiting the scope of the invention with specification one.
Fig. 1 is the flow chart of residence reselecting of the present invention;
Fig. 2 is the flow chart of the embodiment of residence reselecting of the present invention;
Fig. 3 is the composition structural representation of LTE terminal of the present invention.
Embodiment
For the ease of the understanding of those skilled in the art, below in conjunction with accompanying drawing, the invention will be further described, can not be used for limiting the scope of the invention.
Fig. 1 is the flow chart of residence reselecting of the present invention, and as shown in Figure 1, the inventive method comprises:
The ability of step 100, acquisition mobile terminal;
Step 101, reselection request is initiated to current area, and initiate to measure to the adjacent cell of current area;
Step 102, the ability of mobile terminal judging to obtain are data-centered or centered by voice;
Step 103, carry out cell reselection according to the ability of mobile terminal and the measurement result of adjacent cell.Be implemented as follows described in civilian step 205 ~ 210.
Fig. 2 is the flow chart of the embodiment of residence reselecting of the present invention, as shown in Figure 2, comprising:
Step 201, mobile terminal-opening start, and read the configuration information of terminal capability in nonvolatile storage (NV, NonvolatileMemory), obtain the ability of present terminal;
Step 202, mobile terminal carry out proper network registration, and public land mobile network (PLMN, Public Land Mobile Network) selection, community selection, location updating, routing update operation, obtain proper network service.
When the network service quality of step 203, current area is poor, mobile terminal initiates cell re-selection request to current area, and initiates to measure to adjacent cell according to measuring condition;
Mobile terminal has the function of the network service quality detecting current area in real time, when the network service quality of current area is poor, go offline as mobile terminal or network speed is slower time, mobile terminal can initiate reselection request to current area automatically, and initiate to measure to adjacent cell according to measuring condition, current area is no longer mobile terminal service afterwards.Specific implementation belongs to the customary means of those skilled in the art, repeats no more here.
Step 204, judge the ability of present terminal, if the ability of present terminal is centered by voice, then perform step 205, otherwise perform step 206.
The ability of mobile terminal is mainly divided into data-centered and centered by voice, data-centeredly refers to that the business of mobile terminal is based on data, as mobile terminal is generally used for online, and is rarely used in and makes a phone call; Centered by voice, refer to that the business of mobile terminal is based on voice, makes a phone call as mobile terminal is generally used for, and is rarely used in online.Judge according to the value of the configuration information of mobile terminal about capacity of mobile terminal in this step, concrete determination methods belongs to the customary means of those skilled in the art, and the protection range that its specific implementation is not intended to limit the present invention repeats no more here.Such as, when the value of capacity of mobile terminal is 0, then represent that the ability of mobile terminal is for centered by voice, when the value of capacity of mobile terminal is 1, then represents that the ability of mobile terminal is data-centered.
The ability of step 205, present terminal is centered by voice, namely based on speech business, then according to the metrical information of the adjacent cell measured, as time delay, shake, packet loss, echo, according to formula: adjacent cell arranges according to order from small to large by the result of calculation of (time delay × 0.4+ shake × 0.1+ packet loss × 0.4+ echo × 0.1), after sequence, the adjacent cell that prioritizing selection result of calculation is minimum.Process ends afterwards.
In this step, the ability of mobile terminal is centered by voice, so the main consideration parameter relevant to voice service carries out cell reselection, and do not need to consider the parameter relevant to data, services, so the community of gravity treatment must meet the voice demand of mobile terminal, and the situation of again carrying out cell reselection can not be there is, therefore reselection efficiency is high.
Step 206, current terminal capability are data-centered, namely based on data interaction, then according to the metrical information measured, judge that whether the access standard of adjacent cell is identical, if the same enter step 208, otherwise perform step 207.
The access standard of adjacent cell refers to that the network at adjacent cell place is 2G, 3G or 4G.Concrete determination methods belongs to the customary means of those skilled in the art, the protection range that its specific implementation is not intended to limit the present invention, and repeats no more here.
Step 207, sort to community according to the ability of adjacent cell place wireless network, order is 4G, 3G successively, is next 2G.I.e. prioritizing selection 4G, is secondly 3G, is finally only 2G.Process ends afterwards.
The metrical information that step 208, basis measure, judges that whether the ability of the adjacent cell measured is identical, if the same performs step 209, otherwise performs step 210;
Such as, for 3G community, if the ability of adjacent cell is all DC-HSPA+, or HSPA+, or HSDPA, or UMTS, then cell ability is identical, otherwise different.If are all EDGE for 2G cell adjacent cell ability, or GPRS, or GSM then cell ability is identical, otherwise then not identical.The concrete determination methods of this step belongs to the customary means of those skilled in the art, the protection range that its specific implementation is not intended to limit the present invention, and repeats no more here.
Step 209, sort to adjacent cell according to adjacent cell signal strength signal intensity, the community that prioritizing selection signal is the strongest is re-selecting cell; Process ends afterwards.
Can according to chip energy/interference power density (Ec/Io) or received signal code power (RSCP for FDD or TDD cell according to 3GPP agreement TS25.304, Received Signal CodePower) sort, the community that prioritizing selection Ec/Io or RSCP is maximum; Ranking cells can be carried out, the community that prioritizing selection RSSI is maximum according to signal strength signal intensity instruction (RSSI, Received Signal Strength Indication) received for GSM community; For LTE community according to Reference Signal Received Power (RSRP, Reference Signal Receiving Power) or Reference Signal Received Quality (RSRQ, Reference Signal Receiving Quality) sort, the community that prioritizing selection RSRP or RSRQ is maximum.Concrete sort method belongs to prior art, the protection range that its specific implementation is not intended to limit the present invention, and repeats no more here.
When step 210, measurement adjacent cell ability are not identical, sort according to the ability of adjacent cell; The community that prioritizing selection ability is the strongest is re-selecting cell;
For 3G community, DC-HSPA+ cell ability is better than HSPA+ community, and HSPA+ cell ability is better than HSDPA, and the cell ability of HSDPA is better than the community of UMTS; For 2G cell, support that the estate performance of EDGE is better than GPRS community, support that the cell ability of GPRS is better than supporting the community of GSM.
In step 206-210, the ability of mobile terminal is data-centered, so the main consideration parameter relevant to data, services carries out cell reselection, and do not need to consider the parameter relevant to voice service, so the community of gravity treatment must meet the demand data of mobile terminal, and the situation of again carrying out cell reselection can not be there is, therefore reselection efficiency is high.
Fig. 3 is the composition structural representation of LTE terminal of the present invention, as shown in Figure 3, at least comprises:
For obtain the ability of mobile terminal acquisition module, for initiating reselection request to current area, and the adjacent cell of described current area is initiated to the measurement module measured, also comprise:
Judge module, for judging that the ability of obtained mobile terminal is data-centered or centered by voice, and exports to Executive Module by judged result;
Executive Module, for carrying out cell reselection according to the ability of mobile terminal and the metrical information of adjacent cell.
If the judged result that judge module exports is that described mobile terminal is centered by voice;
Then Executive Module, carries out adjacent cell gravity treatment specifically for the time delay of the adjacent cell according to described current area, shake, packet loss, echo.
If the judged result that judge module exports is that described mobile terminal is data-centered;
Then judge module, also whether identical for judging the access standard of the adjacent cell of described current area, and judged result is exported to Executive Module;
If the judged result that judge module exports is that the access standard of adjacent cell is not identical;
Then Executive Module, the ability also for the adjacent cell place wireless network according to described current area sorts, and the community that the ability of prioritizing selection wireless network is the strongest is re-selecting cell.
If the judged result that judge module exports is that the access standard of adjacent cell is identical;
Then judge module, also whether identical for judging the ability of the adjacent cell of described current area, and judged result is exported to Executive Module;
If the judged result that judge module exports is that the ability of adjacent cell is not identical;
Then Executive Module, the ability also for the adjacent cell according to described current area sorts, and the community that prioritizing selection ability is the strongest is re-selecting cell;
If the judged result that judge module exports is that the ability of adjacent cell is identical;
Then Executive Module, the signal strength signal intensity also for the adjacent cell according to described current area sorts, and the community that prioritizing selection signal is the strongest is re-selecting cell.
In the above embodiment of the present invention, the ability of mobile terminal is divided into data-centered and centered by voice, and according to the ability of mobile terminal, gravity treatment is carried out to community, according to the actual needs of mobile terminal for mobile terminal provides quality to serve preferably, thus decrease the number of times repeating to initiate cell reselection, improve the efficiency of cell reselection.
It should be noted that; above-described embodiment is only understand for the ease of those skilled in the art; be not limited to protection scope of the present invention; under the prerequisite not departing from inventive concept of the present invention, any apparent replacement and improvement etc. that those skilled in the art make the present invention are all within protection scope of the present invention.
Claims (11)
1. a residence reselecting, comprising: the ability obtaining mobile terminal; Reselection request is initiated to current area, and initiates to measure to the adjacent cell of described current area; It is characterized in that, also comprise:
The ability of mobile terminal judging to obtain is data-centered or centered by voice;
Cell reselection is carried out according to the ability of mobile terminal and the metrical information of adjacent cell.
2. residence reselecting according to claim 1, is characterized in that, described in judge mobile terminal ability for centered by voice; Described cell reselection comprises:
Cell reselection is carried out according to the time delay of the adjacent cell of described current area, shake, packet loss, echo.
3. residence reselecting according to claim 2, is characterized in that, the time delay of the described adjacent cell according to described current area, shake, packet loss, echo are carried out cell reselection and comprised:
Respectively each adjacent cell is calculated according to formula (time delay × 0.4+ shake × 0.1+ packet loss × 0.4+ echo × 0.1);
Sort to the result of calculation calculated, the minimum community of seletion calculation result is re-selecting cell.
4. residence reselecting according to claim 1, is characterized in that, described in judge that the ability of mobile terminal is data-centered; Described cell reselection comprises:
Judge that whether the access standard of adjacent cell is identical according to the metrical information of described adjacent cell;
If judge not identical, then sort according to the ability of described adjacent cell place wireless network, the ability of prioritizing selection wireless network the strongest community be re-selecting cell.
5. residence reselecting according to claim 4, is characterized in that, if judge that the access standard of the adjacent cell of described current area is identical, also comprises:
Judge that whether the ability of adjacent cell is identical according to the metrical information of described adjacent cell;
If judge that the ability of the adjacent cell of described current area is different, sort according to the ability of described adjacent cell, the community that prioritizing selection ability is the strongest is re-selecting cell.
6. residence reselecting according to claim 5, is characterized in that, if judge that the ability of the adjacent cell of described current area is identical, also comprises:
Sort according to the adjacent cell signal strength signal intensity of described current area, the community that prioritizing selection signal is the strongest is re-selecting cell.
7. a LTE terminal, comprises the acquisition module of the ability for obtaining mobile terminal, for initiating reselection request to current area, and the adjacent cell of described current area is initiated to the measurement module measured, it is characterized in that, also comprises:
Judge module, for judging that the ability of obtained mobile terminal is data-centered or centered by voice, and exports to Executive Module by judged result;
Executive Module, for carrying out cell reselection according to the ability of mobile terminal and the metrical information of adjacent cell.
8. LTE terminal according to claim 7, is characterized in that, the judged result that described judge module exports is that described mobile terminal is centered by voice;
Described Executive Module, carries out adjacent cell gravity treatment specifically for the time delay of the adjacent cell according to described current area, shake, packet loss, echo.
9. LTE terminal according to claim 7, is characterized in that, the judged result that described judge module exports is that described mobile terminal is data-centered;
Described judge module, also whether identical for judging the access standard of the adjacent cell of described current area, and judged result is exported to Executive Module;
Described Executive Module, receive the judged result from judge module, judged result be the access standard of adjacent cell not identical time, the ability also for the adjacent cell place wireless network according to described current area sorts, and the community that the ability of prioritizing selection wireless network is the strongest is re-selecting cell.
10. LTE terminal according to claim 9, is characterized in that,
Described judge module, when judging that the access standard of adjacent cell is identical, also whether identical for judging the ability of the adjacent cell of described current area, and judged result is exported to Executive Module;
Described Executive Module, receives the judged result from judge module, judged result be the ability of adjacent cell not identical time, the ability also for the adjacent cell according to described current area sorts, and the community that prioritizing selection ability is the strongest is re-selecting cell.
11. LTE terminal according to claim 10, is characterized in that,
Described Executive Module, receives the judged result from judge module, judged result be the ability of adjacent cell identical time, the signal strength signal intensity also for the adjacent cell according to described current area sorts, and the community that prioritizing selection signal is the strongest is re-selecting cell.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421849.1A CN104469870B (en) | 2013-09-16 | 2013-09-16 | A kind of residence reselecting and LTE terminal |
| PCT/CN2014/074684 WO2014169762A1 (en) | 2013-09-16 | 2014-04-03 | Cell reselection method and lte terminal |
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| CN201310421849.1A CN104469870B (en) | 2013-09-16 | 2013-09-16 | A kind of residence reselecting and LTE terminal |
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| CN104469870A true CN104469870A (en) | 2015-03-25 |
| CN104469870B CN104469870B (en) | 2019-09-13 |
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| WO (1) | WO2014169762A1 (en) |
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| WO2016197557A1 (en) * | 2015-06-10 | 2016-12-15 | 中兴通讯股份有限公司 | Access method for user equipment in multiple radio access technologies, and user equipment |
| WO2017166968A1 (en) * | 2016-03-28 | 2017-10-05 | 中兴通讯股份有限公司 | Cell handover method and apparatus, and base station device |
| CN109963312A (en) * | 2017-12-26 | 2019-07-02 | 飞狐信息技术（天津）有限公司 | A kind of method for switching network, system, link switch equipment and storage medium |
| WO2020155967A1 (en) * | 2019-02-01 | 2020-08-06 | 电信科学技术研究院有限公司 | Cell selection method, broadcast message sending method, terminal and network device |
| CN114339904A (en) * | 2020-09-30 | 2022-04-12 | 北京小米移动软件有限公司 | Cell switching method, cell switching device and storage medium |
| CN114339904B (en) * | 2020-09-30 | 2024-05-24 | 北京小米移动软件有限公司 | Cell switching method, cell switching device and storage medium |
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Also Published As
| Publication number | Publication date |
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| WO2014169762A1 (en) | 2014-10-23 |
| CN104469870B (en) | 2019-09-13 |
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