CN101925139A - Method for processing handover failure - Google Patents
Method for processing handover failure Download PDFInfo
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- CN101925139A CN101925139A CN2009100866836A CN200910086683A CN101925139A CN 101925139 A CN101925139 A CN 101925139A CN 2009100866836 A CN2009100866836 A CN 2009100866836A CN 200910086683 A CN200910086683 A CN 200910086683A CN 101925139 A CN101925139 A CN 101925139A
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Abstract
The invention discloses a method for processing handover failure, comprising the following steps: a radio network controller (RNC) acquires the handover failure of user equipment (UE), and then triggers a handover retry process or measures and controls a retransmission process according to the reason of the handover failure when the handover is the intercell handover. The invention reasonably selects a processing mode of the handover failure according to the handover types and the handover failure reason, thus effectively improving the processing efficiency of the handover failure and promoting the key performance indicator (KPI) of the network handover performance.
Description
Technical field
The present invention relates to the handoff technique in the mobile communication system, particularly relate to the processing method of handoff failure in the TD-SCDMA system.
Background technology
Handoff failure is the key factor that influences system core performance index (KPI) in the TD-SCDMA system.Handoff failure processing policy in the TD-SCDMA system just simply prolongs with the retry mechanism in the WCDMA system at present, promptly behind handoff failure, the system start-up retry timer after retry timer is overtime, restarts and the identical switching flow of switching type last time.
In actual applications, trigger the problem that switching might not effectively solve handoff failure simply again.In some cases, the reason that causes handoff failure may be a transient state, certain interval of time triggers switching once more and just can solve the handoff failure problem at this moment, but in some cases, cause switching and be non-transient state still can to cause handoff failure once more even trigger once more to switch behind the certain interval of time this moment.Therefore, if having only a kind of processing policy, will cause the reduction of handoff failure handling process treatment effeciency and the decline of KPI index at handoff failure.
And in the TD-SCDMA system intra-cell to change ratio bigger, therefore, the handoff failure processing method in the existing TD-SCDMA system may reduce the efficient of hand-off process, and then cause the serious decline of KPI index.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of processing method of handoff failure, and the handoff failure that this method can improve in the TD-SCDMA system is handled, and promotes network performance of handoffs KPI index.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of processing method of handoff failure, this method may further comprise the steps:
After radio network controller (RNC) is known subscriber equipment (UE) handoff failure,,, trigger and switch the retry flow process or measure control and retransmit flow process according to the reason of described handoff failure only when described when switching to the minizone and switching.
Preferably, described reason according to described handoff failure, the retry flow process is switched in triggering or measurement control repeating transmission flow process is:
, trigger and switch the retry flow process because during the Target cell resource congestion when described handoff failure former;
, trigger and measure control and retransmit flow process, and in new measurement control, will cause sub-district deletion from measure the control tabulation of failure because during the physical channel reconfiguration failure when described handoff failure former;
, trigger and measure control and retransmit flow process because when in the default time, not receiving that physical channel is reshuffled the response message of finishing when described handoff failure former.
Preferably, described method further comprises:
Retransmission interval in the described measurement control repeating transmission flow process is greater than the retry interval of described switching retry flow process, and this measurement control is retransmitted flow process for retransmitting flow process when the former of described handoff failure because receive the measurement control that physical channel is triggered when reshuffling the response message of finishing in the time of presetting.
Preferably, described method further comprises:
When described when switching to intra-cell and changing, RNC is with the flag bit zero clearing that is used to switch of the described UE that self preserves.
In sum, the processing method of the handoff failure that the present invention proposes has been carried out optimal design at the own characteristic of TD-SCDMA system, promptly, according to switching type and handoff failure reason, reasonably select the processing mode of handoff failure, especially when described when switching to intra-cell and changing, do not influence user experience because the problem and the handoff failure that can not solve handoff failure are switched in triggering again, thereby no longer triggering is switched once more, thereby can effectively improve the treatment effeciency of handoff failure, promote network performance of handoffs KPI index.
Embodiment
Main thought of the present invention is according to switching type and handoff failure reason, reasonably select the processing mode of handoff failure, especially when triggering switching again and can not solve the problem of handoff failure, no longer trigger and switch once more, improving the treatment effeciency of handoff failure, thereby realize a kind of method of Intelligent treatment handoff failure.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with specific embodiment.
The embodiment one of the processing method of handoff failure of the present invention mainly comprises:
After RNC is known the UE handoff failure,,, trigger and switch the retry flow process or measure control and retransmit flow process according to the reason of described handoff failure only when described when switching to the minizone and switching.
In actual applications, RNC is known the reason of handoff failure and the handoff failure of UE by the message that is used to indicate handoff failure, and concrete grammar is that those skilled in the art are known, does not repeat them here.
Here need to prove, when described when switching to intra-cell and changing, can not avoid the failure of switching once more even trigger to switch again, if and the intra-cell change owner is used to carry out the optimization of Internet resources, even handoff failure is not handled the speech quality that does not yet influence the user, therefore, no longer need this moment by adopt switching retry mechanism or measure the control retransmission mechanism and carry out the processing of handoff failure, and only consider again when switch the minizone to switch retry mechanism or measure the control retransmission mechanism and carry out the processing of handoff failure when described switching to by adopting.
In the present embodiment, when described when switching to intra-cell and changing, RNC only with the flag bit zero clearing that is used to switch of the described UE that self preserves, finishes this switchings and get final product, so that after this when new switching time arrival, is the new switching flow of this UE startup.
In order further to improve treatment effeciency for the minizone handoff failure, described in the present embodiment according to the reason of handoff failure, trigger switch the retry flow process or measure concrete grammar that control retransmits flow process can for:
, trigger and switch the retry flow process because during the Target cell resource congestion when described handoff failure former.
Here need to prove, when handoff failure be since local resource congested due to the time, the selection that Target cell is described is correct, it is the resource anxiety in current this Target cell, cause this UE can not successful switch, under this situation, switch the problem that the retry flow process can solve this handoff failure effectively by carrying out in internal system.Therefore, carry out the processing of handoff failure by triggering switching retry flow process here.The concrete grammar of described triggering switching retry flow process is grasped by those skilled in the art, does not repeat them here.
, trigger and measure control and retransmit flow process, and in new measurement control, will cause sub-district deletion from measure the control tabulation of failure because during the physical channel reconfiguration failure when described handoff failure former.
Here need to prove, for the handoff failure that is caused owing to the physical channel reconfiguration failure, switch the retry that retry mechanism switches in internal system if adopt, be difficult to solve the problem of handoff failure, therefore in the present invention, no longer trigger switching retry flow process and carry out the processing of handoff failure, but retransmit flow process by measuring control, trigger remeasuring and measurement result mutual of UE, realization is reshuffled physical channel, thereby solves the handoff failure problem that causes owing to the physical channel reconfiguration failure.In addition, in new measurement control, be to measure accuracy and the treatment effeciency that flow process is retransmitted in control in order to improve with the sub-district deletion from measure the control tabulation that causes failure.Described triggering is measured the concrete grammar of control repeating transmission flow process and is grasped by those skilled in the art, does not repeat them here.
, trigger and measure control and retransmit flow process because when in the default time, not receiving that physical channel is reshuffled the response message of finishing when described handoff failure former.
Here need to prove, owing to need the cooperation of UE to finish during the realization of measuring control repeating transmission flow process, so one-shot measurement control retransmission process need take certain hour on eating dishes without rice or wine, and switch the retry flow process is the execution of internal system flow process, promptly only need RNC and base station to carry out getting final product alternately, do not need the participation of UE, thus need be on not eating dishes without rice or wine in this switching retry procedure holding time.Therefore, preferably, the retransmission interval that is provided with in the measurement control repeating transmission flow process is greater than switching the retry interval that is provided with in the retry flow process, with realistic application need, wherein, this measurement control is retransmitted flow process for not retransmitting flow process, the switching retry flow process that this switching retry flow process is triggered when causing handoff failure for the Target cell resource congestion when the former of described handoff failure because receive the measurement control that physical channel is triggered when reshuffling the response message of finishing in the default time.
By technique scheme as can be seen, the present invention no longer simply prolongs the processing of carrying out handoff failure with the retry mechanism in the WCDMA system, but select different switching handling methods according to the reason of type of switching and handoff failure, thereby can effectively improve the treatment effeciency of handoff failure, the elevator system performance.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the processing method of a handoff failure is characterized in that, this method may further comprise the steps:
After radio network controller (RNC) is known subscriber equipment (UE) handoff failure,,, trigger and switch the retry flow process or measure control and retransmit flow process according to the reason of described handoff failure only when described when switching to the minizone and switching.
2. method according to claim 1 is characterized in that, described reason according to described handoff failure, and the retry flow process is switched in triggering or measurement control repeating transmission flow process is:
, trigger and switch the retry flow process because during the Target cell resource congestion when described handoff failure former;
, trigger and measure control and retransmit flow process, and in new measurement control, will cause sub-district deletion from measure the control tabulation of failure because during the physical channel reconfiguration failure when described handoff failure former;
, trigger and measure control and retransmit flow process because when in the default time, not receiving that physical channel is reshuffled the response message of finishing when described handoff failure former.
3. the processing method of handoff failure according to claim 1 is characterized in that, described method further comprises:
Retransmission interval in the described measurement control repeating transmission flow process is greater than the retry interval of described switching retry flow process, and this measurement control is retransmitted flow process for retransmitting flow process when the former of described handoff failure because receive the measurement control that physical channel is triggered when reshuffling the response message of finishing in the time of presetting.
4. the processing method of handoff failure according to claim 1 is characterized in that, described method further comprises:
When described when switching to intra-cell and changing, RNC is with the flag bit zero clearing that is used to switch of the described UE that self preserves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910086683 CN101925139B (en) | 2009-06-17 | 2009-06-17 | Method for processing handover failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910086683 CN101925139B (en) | 2009-06-17 | 2009-06-17 | Method for processing handover failure |
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| CN101925139A true CN101925139A (en) | 2010-12-22 |
| CN101925139B CN101925139B (en) | 2013-05-08 |
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| CN 200910086683 Expired - Fee Related CN101925139B (en) | 2009-06-17 | 2009-06-17 | Method for processing handover failure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790687A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Method and device for protecting business in case of protection switching failure |
| CN102892130A (en) * | 2011-07-21 | 2013-01-23 | 普天信息技术研究院有限公司 | Switching parameter adjusting method |
| CN103379573A (en) * | 2012-04-16 | 2013-10-30 | 马维尔国际有限公司 | Method and device for cell switching |
| CN103875282B (en) * | 2011-08-09 | 2018-03-02 | 诺基亚通信公司 | A kind of method, base station and central location for being used to optimize the mobility robustness of mobile radio communication network |
-
2009
- 2009-06-17 CN CN 200910086683 patent/CN101925139B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790687A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Method and device for protecting business in case of protection switching failure |
| CN102892130A (en) * | 2011-07-21 | 2013-01-23 | 普天信息技术研究院有限公司 | Switching parameter adjusting method |
| CN103875282B (en) * | 2011-08-09 | 2018-03-02 | 诺基亚通信公司 | A kind of method, base station and central location for being used to optimize the mobility robustness of mobile radio communication network |
| CN103379573A (en) * | 2012-04-16 | 2013-10-30 | 马维尔国际有限公司 | Method and device for cell switching |
| CN103379573B (en) * | 2012-04-16 | 2019-01-01 | 马维尔国际有限公司 | Method and apparatus for cell switching |
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| Publication number | Publication date |
|---|---|
| CN101925139B (en) | 2013-05-08 |
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