CN101217814B - An improvement method for mission success rate of mobile terminal - Google Patents
An improvement method for mission success rate of mobile terminal Download PDFInfo
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- CN101217814B CN101217814B CN2008100325953A CN200810032595A CN101217814B CN 101217814 B CN101217814 B CN 101217814B CN 2008100325953 A CN2008100325953 A CN 2008100325953A CN 200810032595 A CN200810032595 A CN 200810032595A CN 101217814 B CN101217814 B CN 101217814B
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Abstract
The invention discloses a method for improving success ratio of an originating call of a mobile terminal. The method calculates the quality of a service cell by receiving data of a paging channel; the process of random access request is carried out after the mobile terminal starts service request; when the random access request fails, the quality of the service cell is judged whether meets the request, and if not, that whether the neighbor cells are selectable is judged and when the cells are selected again, the random access request is started again. By adopting the method of the invention, the success ratio of the originating call can be improved effectively.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of make a call method of success rate of portable terminal of improving.
Background technology
Along with the development of society, the interchange of people in the work life is day by day frequent.Meanwhile, the requirement of people to exchanging, more and more higher to the requirement of communication system.Existing GSM mobile communcations system is a micro-honeycomb structure, and the user is everlasting often at the use portable terminal and constantly shifts one's position, and along with the change of customer location, must cause the variation of serving cell of mobile terminal.The serving cell of mobile terminal variation is accompanied by cell reselection process usually, generally, when the stronger neighbour cell of signal occurring, perhaps current service cell DSC (Downlink Signaling Failure Counter) is 0 o'clock, just need carry out the sub-district gravity treatment.
And before the gravity treatment of sub-district, when if but the very poor DSC of current Serving cell signal also is not kept to 0, portable terminal (the Mobile Oriented Call that just makes a call, MOC), because the cell signal quality is very poor, receive data and the very high error rate occurred, so this MOC probability of failure is very high.
Because the MOC mortality is very high in this case, will cause a large amount of call failures, the user uses also very dissatisfied, and urgent need will improve call successful rate in this case.
In the prior art, application number is that the Chinese patent application of CN200710078185.8 has proposed a kind of method that improves mobile-terminal RRC connection success probabality.This method is by measuring the signal quality of Serving cell and neighbor cell, according to up-to-date measurement result, gravity treatment is to the best sub-district of signal quality, understand the system message of this sub-district, on this sub-district, carry out RRC after success is resident immediately once more and connect the process of setting up, improve RRC and connect the success rate of setting up.
This Chinese patent application is to connect under the unsuccessful situation at RRC, and the signal quality of Serving cell and neighbor cell is measured, and lays equal stress on and chooses the best sub-district of signal quality, and then initiate the RRC connection.Having a variety ofly but RRC connects unsuccessful reason, is not only because poor signal quality, so according to Chinese patent application, tend to initiate the sub-district gravity treatment under the not poor situation of signal quality, causes frequent cell reselection process.
The present invention has just proposed a kind of method of improving call successful rate, solves this problem.
Summary of the invention
The objective of the invention is to propose a kind of effective make a call method of success rate of portable terminal of improving, be used for improving the call successful rate of portable terminal.
Purpose of the present invention is achieved through the following technical solutions: a kind of make a call method of success rate of portable terminal of improving comprises the following steps:
Step 1, mobile terminal-opening reside in Serving cell;
Step 2, reception Serving cell signal, the calculation services cell quality;
Step 3, portable terminal are initiated service request;
Step 4, initiation insert request at random, if the request that inserts is at random failed, then carry out steps 5, otherwise carry out steps 7;
Step 5, judgement Serving cell quality if the Serving cell quality is not less than threshold values N then carry out step 6, otherwise carry out steps 7;
Step 6, carry out the sub-district gravity treatment, initiate to insert at random request again;
Step 7, the normal flow that continues.
Wherein said Serving cell signal is the paging channel data, and according to the number of errors of paging channel, tabling look-up obtains the Serving cell quality.If the Serving cell quality is not less than 4, represent that then Serving cell is of poor quality, need carry out the sub-district gravity treatment new request of initiating to insert at random of laying equal stress on.
The described normal process flow process of step 7 if directly enter step 7 after step 4, is meant then to insert at random and asks successfully that allocated channel is set up communication; If after step 5, directly enter step 7, then be meant and insert the request failure at random, return holding state again; If after step 6, directly enter step 7, then be meant and restart to initiate to insert at random request.
Described portable terminal is the GSM terminal, also can be the CDMA terminal
Compared with prior art, the present invention carries out the sub-district gravity treatment according to judgement then by judging the Serving cell quality, initiates again to insert request at random again, when having avoided other reasons to cause inserting at random the request failure, carries out the sub-district gravity treatment.Thereby can effectively improve the success rate that portable terminal makes a call, and the access at random of having avoided other reasons to cause is asked failure and is caused possible sub-district gravity treatment.
Description of drawings
Fig. 1 the present invention improves the make a call flow chart of method of success rate of portable terminal.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the invention is described.
For convenience of description, all (Global SystemFor Mobile Communication, GSM) example that is applied as in describes embodiments of the invention in global system for mobile communications with it.Yet, other communication systems in the wireless telecommunications, as broadband CDMA system (Wide Code Division Multiple Access, WCDMA), CDMA 2000 (Code Division Multiple Access, CDMA2000), (Time Division-Synchronous Code Division Multiple Access TD-SCDMA) all can support method of the present invention to TDS-CDMA system.
In the GSM cellular network, the sub-district gravity treatment can take place under following situation usually:
1) the C1 value of Serving cell less than time of 0 above 5 seconds;
2) the C2 value of non-service cell greater than the C2 value time of Serving cell above 5 seconds;
3)DSC＝0；
4) the successfully decoded DSC=DSC+1 of beep-page message;
5) beep-page message decoding failure DSC=DSC-4;
6) DSC maximum=90/BS_PA_MFRMS (BS_PA_MFRMS: frame number between identical paging group);
7) channel request of Zui Da repeating transmission number of times all can not obtain corresponding.
But before carrying out the sub-district gravity treatment, when if but the very poor DSC of current Serving cell signal also is not kept to 0, portable terminal (the mobile oriented call that just makes a call, MOC), because the cell signal quality is very poor, receive data and the very high error rate occurred, so this MOC probability of failure is very high.After initiating a MOC, portable terminal will be initiated random access procedure, links successfully then to apply for channel, successfully sets up channel and connects, and carries out communication.
Random access procedure is a channel request process.In a broad sense, this process starts from portable terminal (MS), when the MS that is under the idle condition (IDLE MODE) need establish a communications link with network, MS just upward sends a message that is called " channel request " (CHANNEL REQUEST) message to network at RACH (Random Access Channel) and comes to signaling channel of system's application, and network will decide the channel type that is distributed according to the channel request needs.MS will adjust to the transmitting-receiving configuration of itself on the allocated channel subsequently, thereby sets up communication link gradually.
But random access procedure links failure through regular meeting, and its contingent reason is a lot, generally includes underlying cause: same BCCH/BSIC, adjacent interference frequently together; Cover bad, up and down power is uneven, TA (Timing Advance) is excessive; The hardware problem of RX path; Telephone traffic is too high, congested.Access failure more is in the border, lane place by portable terminal and causes at random in traffic measurement, thereby the success rate of improving random access procedure will solve exactly on the border, lane place the link failure problem that the Serving cell quality descends and causes.
In order to address the above problem, the present invention proposes a kind of method of improving call successful rate, as shown in Figure 1, comprise the following steps:
Step 101, resident behind the mobile terminal-opening to certain sub-district;
Step 102, paging receiving channel PCH data are calculated the error rate, and are drawn the Serving cell quality in view of the above;
Step 103, portable terminal is initiated service request;
Step 104 initiates to insert at random request, links successfully then execution in step 107, otherwise execution in step 105;
Step 105 judges whether the Serving cell quality reaches requirement, the then execution in step 107 that meets the demands, otherwise execution in step 106;
Step 106 is carried out the sub-district gravity treatment, initiates to insert at random request again;
Step 107 continues normal flow.
Said method passes through the calculation services cell quality, judges whether the Serving cell quality satisfies certain requirement, and after inserting the request failure at random, wait sub-district gravity treatment is laid equal stress on and newly initiated to insert at random request then.Increased calling ratio of success greatly.
By Serving cell quality (quality) is judged, when having avoided other situations to cause inserting at random the request failure, carry out the sub-district gravity treatment.Just when the Serving cell request of the access at random connection request failure that causes of poor quality, just carry out the sub-district gravity treatment and lay equal stress on and newly initiate to insert at random to ask.
Calculate number of errors (bit error counter) then by receiving decoding PCH data, by the number of errors that calculates, tabling look-up obtains quality, if quality＞=4 then think bad channel quality.
After inserting request at random, link successfully, then continue normal flow process, allocated channel is set up communication.
After inserting request at random, the link failure is then carried out the Serving cell quality and is judged, if the Serving cell quality is good, then carries out the normal handling flow process, returns holding state.If Serving cell is of poor quality, then carry out the sub-district gravity treatment, after gravity treatment, initiate once more to insert request at random, continue to initiate professional.
Above-mentioned when the Serving cell quality good, but insert the request failure at random, common handling process is to cause call failure, portable terminal enters holding state.
And, then to judge whether optional neighbor cell, so that carry out the sub-district gravity treatment in the Serving cell request of the access at random failure that causes of poor quality.If have, then carry out the sub-district gravity treatment, after gravity treatment, initiate once more to insert request at random, carry out other normal handling flow processs.If there is not optional neighbor cell, then enter holding state.
As seen, when inserting the request failure at random, by method of the present invention because the Serving cell quality causes, judge according to Serving cell quality situation, when be the Serving cell quality cause reason the time, carry out the sub-district gravity treatment, again initiate to insert request at random, reach the purpose that improves call successful rate.
Be understandable that, for those of ordinary skills, can be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the present invention.
Claims (7)
1. one kind is improved the make a call method of success rate of portable terminal, it is characterized in that comprising the following steps;
Step 1, mobile terminal-opening reside in Serving cell;
Step 2, reception Serving cell signal, the calculation services cell quality;
Step 3, portable terminal are initiated service request;
Step 4, initiation insert request at random, if the request that inserts is at random failed, then carry out steps 5, ask successfully otherwise insert at random, and allocated channel is set up communication;
Step 5, judgement Serving cell quality if the Serving cell quality is not less than threshold values N then carry out step 6, otherwise insert the request failure at random, return holding state again;
Step 6, carry out the sub-district gravity treatment, initiate to insert at random request again.
2. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described Serving cell signal is the paging channel data.
3. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described Serving cell quality is by calculating the number of errors of paging channel data, and tabling look-up obtains.
4. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described threshold values equals 4.
5. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described step 6 also comprises step: judged whether optional neighbour cell, if have then carry out the sub-district gravity treatment, if not then enter holding state.
6. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described portable terminal is the GSM terminal.
7. a kind of make a call method of success rate of portable terminal of improving as claimed in claim 1, it is characterized in that: described portable terminal is the CDMA terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100325953A CN101217814B (en) | 2008-01-11 | 2008-01-11 | An improvement method for mission success rate of mobile terminal |
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| CN2008100325953A CN101217814B (en) | 2008-01-11 | 2008-01-11 | An improvement method for mission success rate of mobile terminal |
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| CN101217814A CN101217814A (en) | 2008-07-09 |
| CN101217814B true CN101217814B (en) | 2011-03-23 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238751B (en) * | 2010-04-22 | 2014-11-12 | 联芯科技有限公司 | Method, device and system for improving random access success rate |
| CN104080065B (en) * | 2013-03-25 | 2017-12-26 | 中兴通讯股份有限公司 | It is a kind of to call the method and device redialed automatically |
| CN105142236A (en) * | 2015-08-13 | 2015-12-09 | 小米科技有限责任公司 | Network connection method and device |
| WO2017107073A1 (en) * | 2015-12-22 | 2017-06-29 | 华为技术有限公司 | Data transmission processing method, user equipment and base station |
| CN106993316A (en) * | 2017-04-10 | 2017-07-28 | 深圳市万普拉斯科技有限公司 | Call access method, device, user terminal and readable storage medium storing program for executing |
| CN111385816B (en) * | 2018-12-27 | 2022-07-15 | 展讯通信（上海）有限公司 | Method and device for reporting random access statistical information |
| CN110012515A (en) * | 2019-02-28 | 2019-07-12 | 努比亚技术有限公司 | A kind of call failure processing method, terminal and computer readable storage medium |
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| CN1273497A (en) * | 1999-05-11 | 2000-11-15 | 日本无线株式会社 | Trans-zone switchover method for pHS personal station |
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| CN1505336A (en) * | 2002-12-03 | 2004-06-16 | 华为技术有限公司 | A control method for random access |
| CN1917694A (en) * | 2005-08-17 | 2007-02-21 | 西门子（中国）有限公司 | Method for selecting random access channel by user terminal in radio mobile communication system |
| CN101031152A (en) * | 2007-02-07 | 2007-09-05 | 重庆重邮信科股份有限公司 | Method for shortening user-terminal re-selection time delay under empty mode |
| CN101031150A (en) * | 2007-02-07 | 2007-09-05 | 重庆重邮信科股份有限公司 | Method for increasing mobile-terminal RRC connection success probabality |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1273497A (en) * | 1999-05-11 | 2000-11-15 | 日本无线株式会社 | Trans-zone switchover method for pHS personal station |
| CN1437416A (en) * | 2002-02-08 | 2003-08-20 | 华为技术有限公司 | Method of raising successive mobile station accessing rate in mobile communication system |
| CN1505336A (en) * | 2002-12-03 | 2004-06-16 | 华为技术有限公司 | A control method for random access |
| CN1917694A (en) * | 2005-08-17 | 2007-02-21 | 西门子（中国）有限公司 | Method for selecting random access channel by user terminal in radio mobile communication system |
| CN101031152A (en) * | 2007-02-07 | 2007-09-05 | 重庆重邮信科股份有限公司 | Method for shortening user-terminal re-selection time delay under empty mode |
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