CN1984456A - Method for increasing success rate - Google Patents
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- CN1984456A CN1984456A CNA2006100720474A CN200610072047A CN1984456A CN 1984456 A CN1984456 A CN 1984456A CN A2006100720474 A CNA2006100720474 A CN A2006100720474A CN 200610072047 A CN200610072047 A CN 200610072047A CN 1984456 A CN1984456 A CN 1984456A
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Abstract
The method comprises: a) according to the cell measurement report from UE, the radio network controller (RNC) decides if the active set of UE varies; if yes, then entering step b; b) checking the current active set to decide if the all cells in the active set are high speed downlink packet access (HSDPA) cells; if yes, then entering step c; otherwise, entering step d; c) RNC reconfigures the UE traffic as HSDPA traffic, and ends the current process; d) RNC reconfigures the UE as traditional traffic.
Description
Technical field
The present invention relates to the descending access of high-speed packet (HSDPA) technology, refer to a kind of method that improves handover success rate especially.
Background technology
Soft handover is that Wideband Code Division Multiple Access (WCDMA) inserts the new handoff functionality of (WCDMA) system, is used for the migration of portable terminal (UE) between co-frequency cell, to improve handover success rate.The WCDMA standard is divided into a plurality of different versions such as version (Release) 99, Release4, Release5, Release6 according to the time of releasing, hereinafter to be referred as R99, R4, R5, R6 version.
Wherein, the HSDPA technology appears in the R5 version, the sub-district of compatible R99 version of the cell forward of R5 version and R4 version.Here, will support the sub-district of R99 version to be called the R99 sub-district, support the sub-district of R4 version to be called the R4 sub-district, support the sub-district of HSDPA technology to be called the HSDPA sub-district.Accordingly, the business of supporting in the R99 sub-district is called the R99 business, and the business of the use HSDPA technology that the business of supporting in the R4 sub-district is called the R4 business, support in the HSDPA sub-district is called the HSDPA business.Simultaneously, the R99 business only can be supported in the base station in the R99 sub-district; The R4 business only can be supported in the base station in the R4 sub-district, all can not support the HSDPA business; But in the HSDPA sub-district, R99 business, R4 business can not only be supported in the base station, also can support the HSDPA business simultaneously.All support the soft handover function between HSDPA sub-district and the R99 sub-district and between HSDPA sub-district and the R4 sub-district.In this article, claim R99 sub-district and R4 sub-district to be referred to as conventional cell, R99 business and R4 business are referred to as traditional business.
In the prior art, though can support the soft handover of minizone between HSDPA sub-district and the R99 sub-district, but because when wireless network planning, each sub-district all is difficult to guarantee coverage in full accord of up-downgoing wireless signal, therefore cause owing to the R99 sub-district can't demodulation HSDPA business and reason such as up channel power control, and make the soft handover that can't carry out success between HSDPA sub-district and the R99 sub-district, so the call drop phenomenon in the soft switching process is of common occurrence.Below by two examples the problem that exists in the soft switching process between HSDPA sub-district and the R99 sub-district is elaborated.
Fig. 1 is the R99 business for the UE initial service, and UE from the R99 sub-district along track 11 schematic diagrames that move to the HSDPA sub-district.In Fig. 1, A point expression RNC represents that with Active Set, B point that the HSDPA sub-district adds UE the downlink signal quality of HSDPA sub-district is better than the R99 sub-district, the C point represents that UE has arrived the up coverage of HSDPA sub-district, D point expression RNC deletes the R99 sub-district from the Active Set of UE.RNC reshuffles the process of UE business and is in Fig. 1: when UE by the A point, when further leaving the R99 sub-district near HSDPA sub-district arrival B point, measurement by UE reports, RNC finds that the downlink signal quality of HSDPA sub-district is better than the downlink signal quality of R99 sub-district, therefore is changed to the HSDPA business at the B professional reprovision of UE of naming a person for a particular job.
As can be seen from Figure 1, at the B point, because the UE up coverage of no show HSDPA sub-district also, so the HSDPA sub-district can't receive the upward signal of UE, and can only rely on the R99 sub-district to receive the upward signal of UE; But, because RNC has been the HSDPA business with the business configuration of UE at the B point, though therefore the base station of R99 sub-district can receive that the upward signal of UE also can't demodulate the HSDPA Traffic Channel of UE, thereby the professional upward signal of the HSDPA that causes UE interrupts, and then make the interruption of the whole HSDPA business of UE, produce the call drop phenomenon.
Fig. 2 is the HSDPA business for the UE initial service, and UE from the HSDPA sub-district along track 21 schematic diagrames that move to the R99 sub-district.In Fig. 2, up coverage, C point expression RNC that A point expression UE has arrived the R99 sub-district represent that with Active Set sub-district, B point that the R99 sub-district adds UE the downlink signal quality of R99 sub-district is better than the HSDPA sub-district, D point expression RNC deletes the HSDPA sub-district from the Active Set of UE.RNC reshuffles the process of UE business and is in Fig. 2: when UE by A point and C point, when further leaving the HSDPA sub-district near R99 sub-district arrival B point, measurement by UE reports, RNC finds that the downlink signal quality of R99 sub-district is better than the downlink signal quality of HSDPA sub-district, therefore is changed to the HSDPA business at the B professional reprovision of UE of naming a person for a particular job.
As can be seen from Figure 2, when UE moved to C point on the track, increased thresholding because the downlink signal quality of R99 sub-district satisfies Active Set this moment, and RNC then adds the R99 sub-district Active Set of UE.As UE during at the C point, because the C point has been positioned within the up coverage of R99 sub-district, the R99 sub-district can obtain UE quality of uplink signal preferably, so the R99 sub-district can will cause the uplink signal strength of UE to reduce by the uplink transmission power of power control reduction UE like this.
Yet because the current use of UE is the HSDPA business, though UE is nearer and have a good up channel condition from the base station of R99 sub-district, the R99 sub-district can't demodulate the HSDPA business that UE uses all the time; Because at the C point, UE is far away from the base station of HSDPA sub-district again, and the R99 sub-district has reduced the uplink signal strength of UE, so the upward signal of UE can not reach the demodulation threshold of HSDPA sub-district, and normal demodulation can not be carried out to UE in the HSDPA sub-district.Can obtain by the above situation analysis that UE is ordered at C: though the professional reprovision of UE is not changed to the R99 business at C point RNC, but because R99 sub-district and HSDPA sub-district all can't demodulate the upward signal of UE, therefore causing UE upward signal will occur at the C point interrupts, and then make the interruption of the whole HSDPA business of UE, produce the call drop phenomenon.
Between HSDPA sub-district and R4 sub-district, there is the problem between above-mentioned HSDPA sub-district and the R99 sub-district equally.
Can obtain based on above analysis Fig. 1 and Fig. 2, though between HSDPA sub-district and conventional cell, can carry out soft handover, but owing to the call drop phenomenon takes place the UE that makes out of season of reconfiguration traffic in soft switching process, therefore seriously influence quality of services for users, reduced handover success rate.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that improves handover success rate, use this method and can improve UE and switch to the handover success rate that HSDPA sub-district and HSDPA sub-district switch to conventional cell, guarantee QoS of customer, prevent call drop from conventional cell.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of method that improves handover success rate, this method may further comprise the steps:
A, RNC judge according to the cell measurement reporting of UE whether the Active Set of UE changes, under situation about changing, and execution in step B;
B, check whether in the current Active Set of UE all be the HSDPA sub-district, if, execution in step C then; Otherwise, execution in step D;
It is professional for the HSDPA business that C, RNC reshuffle UE, finishes current handling process;
It is traditional business that D, RNC reshuffle UE.
Wherein, in the steps A, the Active Set of the described UE of judgement whether change for: judge whether that the sub-district deletes and/or judge whether that the sub-district increases to the Active Set of UE from the Active Set of UE, if have the sub-district from the Active Set of UE, to delete or have the sub-district to increase to the Active Set of UE, then change execution in step B.
Wherein, in the steps A, the Active Set of the described UE of judgement whether change for: judge whether that the sub-district deletes or increase to the Active Set of UE from the Active Set of UE, before step B, further comprise:
When the sub-district increases to the Active Set of UE,
Judge whether the UE current business is the HSDPA business, if, execution in step B then, otherwise, steps A returned;
When delete from the Active Set of UE the sub-district,
Judge whether the UE current business is traditional business, if, execution in step B then, otherwise, steps A returned.
Wherein, between step B and step C, this method further comprises:
Judge UE current whether be traditional business, when UE is current when being traditional business, execution in step C.
In addition, between step B and step D, this method further comprises:
Judge UE current whether be the HSDPA business, be HSDPA when professional when UE is current, execution in step D.
Wherein, in the steps A, when the Active Set of UE does not change, return steps A;
Accordingly, after execution of step C or step D, return steps A.
In addition, between step B and step C, this method further comprises:
Judge UE current whether be traditional business, if, execution in step C then; Otherwise, return steps A.
In addition, between step B and step D, this method further comprises:
Judge UE current whether be the HSDPA business, if, execution in step D then; Otherwise, return steps A.
Wherein, initiate when professional execution in step B to RNC request as UE.
Wherein, described traditional business is: version 99 business or edition 4 business.
A kind of method that improves handover success rate provided by the present invention by when the UE Active Set changes, judges whether the sub-district in the Active Set after UE changes is the HSDPA sub-district, and then determines to be the business of UE configuration.Sub-district in the Active Set after UE changes is under the situation of HSDPA sub-district, is the HSDPA business with the business configuration of UE; Sub-district in the Active Set after UE changes is not under the situation of HSDPA sub-district, is traditional business with the business configuration of UE.By using method proposed by the invention, improved HSDPA sub-district success rate for switching, the quality of services for users of assurance has effectively prevented the call drop phenomenon.
Description of drawings
Fig. 1 moves to the schematic diagram of HSDPA sub-district from the R99 sub-district for portable terminal;
Fig. 2 moves to the schematic diagram of R99 sub-district from the HSDPA sub-district for portable terminal;
Fig. 3 is the flow chart of the embodiment of the invention one;
Fig. 4 is the flow chart of the embodiment of the invention two;
Fig. 5 is the flow chart of the embodiment of the invention three;
Fig. 6 is the flow chart of the embodiment of the invention four.
Embodiment
In order to improve the HSDPA sub-district to the conventional cell success rate for switching, and conventional cell is to HSDPA sub-district success rate for switching, consider that the HSDPA sub-district can support traditional business, and conventional cell can not be supported the HSDPA business, therefore the present invention judges by RNC whether the Active Set of UE changes, judge further when changing whether the sub-district in the Active Set after UE changes is the HSDPA sub-district, as long as when the sub-district in the UE Active Set not all was the HSDPA sub-district, then reshuffling UE was traditional business; Only the sub-district in the UE Active Set all is the HSDPA sub-district, and just reshuffling UE is the HSDPA business, thereby realizes improving handover success rate.
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.In an embodiment of the present invention, be that R99 business, conventional cell are the example explanation for the R99 sub-district with the traditional business.
Embodiment one
What present embodiment was described is that RNC judges that the variation that the UE Active Set takes place only is: judge whether situation that certain sub-district is deleted from the Active Set of UE, detailed process as shown in Figure 3:
The Active Set sub-district of step 301:UE monitoring self, and the result that will monitor reports RNC.Here, the UE monitoring result that reports RNC is called the cell measurement reporting of UE.
Step 302:RNC reports the monitoring result of self according to UE, judge the monitoring result whether self can report according to UE, certain sub-district of deletion from the Active Set of UE, if RNC judges that obtaining self can delete certain sub-district according to the monitoring result that UE reports from the Active Set of UE, then execution in step 303; Otherwise, return step 301.
Here, RNC judges self whether can delete certain sub-district from the Active Set of UE according to the monitoring result that UE reports and be specially: the monitoring result that RNC reports according to UE, judge whether to exist certain sub-district in the UE Active Set to reach Active Set deletion thresholding, if this sub-district arrives Active Set deletion thresholding, then RNC deletes this sub-district from the Active Set of UE, and then RNC judges that obtaining self can delete certain sub-district according to the monitoring result that UE reports from the Active Set of UE.
Step 303:RNC checks whether in the current Active Set of UE all be the HSDPA sub-district, if, execution in step 304; Otherwise, execution in step 305.
The business that step 304:RNC reshuffles UE is the HSDPA business, returns step 401.
It is the R99 business that step 305:RNC reshuffles UE, returns step 401.
So far, the flow process of present embodiment method finishes.
Embodiment two
What present embodiment was described is that RNC judges that the variation that the UE Active Set takes place only is: judge whether certain sub-district is increased to the Active Set of UE, detailed process as shown in Figure 4:
The Active Set sub-district of step 401:UE monitoring self, and the result that will monitor reports RNC.
Step 402:RNC reports the monitoring result of self according to UE, judge the monitoring result whether self can report according to UE, certain sub-district is increased to the Active Set of UE, if RNC judges that obtain the monitoring result that self can report according to UE increases to the Active Set of UE with certain sub-district, then execution in step 403; Otherwise, return step 401.
Here, RNC judges whether self can be specially the Active Set that certain sub-district increases to UE according to the monitoring result that UE reports: the monitoring result that RNC reports according to UE, judge whether to exist certain sub-district in the UE Active Set to reach Active Set increase thresholding, if arriving Active Set, this sub-district increases thresholding, then RNC increases to the Active Set of UE with this sub-district, and then RNC judges and obtains the Active Set that self can certain sub-district be increased to UE according to the monitoring result that UE reports.
Step 403:RNC checks whether in the current Active Set of UE all be the HSDPA sub-district, if, execution in step 404; Otherwise, execution in step 405.
The business that step 404:RNC reshuffles UE is the HSDPA business, returns step 401.
It is the R99 business that step 405:RNC reshuffles UE, returns step 401.
So far, the flow process of present embodiment method finishes.
Embodiment three
What present embodiment was described is that RNC judges being changed to of UE Active Set generation: whether exist certain sub-district from the Active Set of UE, to delete or do not exist certain sub-district to increase to the situation of the Active Set of UE, detailed process as shown in Figure 5:
The Active Set sub-district of step 501:UE monitoring self, and the result that will monitor reports RNC.
Step 502:RNC reports the monitoring result of self according to UE, judge whether to exist and self understand the monitoring result that reports according to UE, certain sub-district of deletion or certain sub-district is increased to the situation of the Active Set of UE from the Active Set of UE, judge whether that promptly the sub-district deletes and judge whether that the sub-district increases to the Active Set of UE from the Active Set of UE, if have the sub-district from the Active Set of UE, to delete or have the sub-district to increase to the Active Set of UE, then the Active Set of UE changes, execution in step 503; Otherwise, return step 501.
Here, specifically judge and self whether can from the Active Set of UE, delete certain sub-district or certain sub-district is increased to the operation of the Active Set of UE, identical with step 302 and the described method of step 402 among the embodiment two among the embodiment one, be not described in detail in this.
Step 503:RNC checks whether in the current Active Set of UE all be the HSDPA sub-district, if, execution in step 504; Otherwise, execution in step 505.
It is the HSDPA business that step 504:RNC reshuffles UE, returns step 501.
It is the R99 business that step 505:RNC reshuffles UE, returns step 501.
So far, the flow process of present embodiment method finishes.
Embodiment four
Present embodiment is identical with embodiment three, is similarly to judge whether to exist certain sub-district to delete from the Active Set of UE or do not exist certain sub-district to increase to the situation of the Active Set of UE.Different with embodiment three is: owing to increase R99 sub-district or deletion HSDPA sub-district in the Active Set of UE, there is not any influence in check result to step 503 among the embodiment three, therefore from this point, consider embodiment three is further optimized, specifically as shown in Figure 6:
The Active Set sub-district of step 601:UE monitoring self, and the result that will monitor reports RNC.
Step 602:RNC reports according to UE's, and RNC judges current whether the deletion from the Active Set of UE with the Active Set of certain sub-district adding UE or with certain sub-district; When finding that self can increase to the Active Set of UE with certain sub-district, then execution in step 603; When finding that self can delete certain sub-district in the Active Set of UE, execution in step 604.
Here, specifically judge and self whether can from the Active Set of UE, delete certain sub-district or certain sub-district is increased to the operation of the Active Set of UE, identical with step 302 and the described method of step 402 among the embodiment two among the embodiment one, be not described in detail in this.
Step 603: judge whether the UE current business is the HSDPA business, if, execution in step 605; Otherwise, return step 601.
Step 604: judge whether the UE current business is the R99 business, if, execution in step 605, otherwise, step 601 returned.
Step 605:RNC checks whether in the current Active Set of UE all be the HSDPA sub-district, if, execution in step 606; Otherwise, execution in step 607.
It is the HSDPA business that step 606:RNC reshuffles UE, returns step 601.
It is the R99 business that step 607:RNC reshuffles UE, returns step 601.
So far, the flow process of present embodiment method finishes.
In embodiments of the invention one, embodiment two, embodiment three and embodiment four, in order to prevent that RNC from being the identical business of UE repeated configuration, can be before RNC be the UE reconfiguration traffic, further judge whether the current business of UE is identical with the type of service of wanting reconfiguration traffic, if it is identical, then do not reshuffle, return the beginning of whole flow process; Otherwise execution is reshuffled.
For example, before the step 606 of the step 504 of embodiment three and embodiment four is reshuffled the HSDPA business, can judge further whether the current business of UE is the HSDPA business, if then directly return step 501 or step 601; Otherwise, UE is configured to the HSDPA business.Again for example, before the step 607 of the step 505 of embodiment three and embodiment four is reshuffled the R99 business, can judge further whether the current business of UE is the R99 business, if then directly return step 501 or step 601; Otherwise, UE is configured to the R99 business.
In embodiments of the invention one, embodiment two, embodiment three and embodiment four, can also at UE when business be initiated in the RNC request, then trigger to carry out and check whether in the current Active Set of UE all be the operation of HSDPA sub-district.Here, the initiation business of indication is meant: initiate the HSDPA business in the HSDPA sub-district; In the R99 sub-district, initiate the R99 business.For example, when business was initiated in the RNC request, then step 503 among the triggering execution embodiment three or the step 603 among the embodiment four after triggering, then can enter as Fig. 5 or the flow process of reshuffling the UE business as shown in Figure 6 at UE.
More than be that R99 business, conventional cell are the description of R99 sub-district to traditional business, being adapted to traditional business equally is that R4 business, conventional cell are the situation of R4, is not described in detail in this.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, a kind of method that improves handover success rate is characterized in that, this method may further comprise the steps:
A, radio network controller (RNC) judge according to the cell measurement reporting of mobile terminal UE whether the Active Set of UE changes, under situation about changing, and execution in step B;
B, check whether in the current Active Set of UE all be the descending access of high-speed packet HSDPA sub-district, if, execution in step C then; Otherwise, execution in step D;
It is professional for the HSDPA business that C, RNC reshuffle UE, finishes current handling process;
It is traditional business that D, RNC reshuffle UE.
2, method according to claim 1, it is characterized in that, in the steps A, the Active Set of the described UE of judgement whether change for: judge whether that the sub-district deletes and/or judge whether that the sub-district increases to the Active Set of UE from the Active Set of UE, if have the sub-district from the Active Set of UE, to delete or have the sub-district to increase to the Active Set of UE, then change execution in step B.
3, method according to claim 1 is characterized in that, in the steps A, the Active Set of the described UE of judgement whether change for: judge whether that the sub-district deletes or increase to the Active Set of UE from the Active Set of UE, before step B, further comprise:
When the sub-district increases to the Active Set of UE,
Judge whether the UE current business is the HSDPA business, if, execution in step B then, otherwise, steps A returned;
When delete from the Active Set of UE the sub-district,
Judge whether the UE current business is traditional business, if, execution in step B then, otherwise, steps A returned.
According to claim 1,2 or 3 described methods, it is characterized in that 4, between step B and step C, this method further comprises:
Judge UE current whether be traditional business, when UE is current when being traditional business, execution in step C.
According to claim 1,2 or 3 described methods, it is characterized in that 5, between step B and step D, this method further comprises:
Judge UE current whether be the HSDPA business, be HSDPA when professional when UE is current, execution in step D.
6, according to claim 1,2 or 3 described methods, it is characterized in that, in the steps A, when the Active Set of UE does not change, return steps A;
Accordingly, after execution of step C or step D, return steps A.
7, method according to claim 6 is characterized in that, between step B and step C, this method further comprises:
Judge UE current whether be traditional business, if, execution in step C then; Otherwise, return steps A.
8, method according to claim 6 is characterized in that, between step B and step D, this method further comprises:
Judge UE current whether be the HSDPA business, if, execution in step D then; Otherwise, return steps A.
9, method according to claim 6 is characterized in that, when UE initiates when professional execution in step B to RNC request.
10, method according to claim 1 is characterized in that, described traditional business is: version 99 business or edition 4 business.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100720474A CN100499867C (en) | 2006-04-04 | 2006-04-04 | Method for increasing success rate |
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| CNB2006100720474A CN100499867C (en) | 2006-04-04 | 2006-04-04 | Method for increasing success rate |
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| CN1984456A true CN1984456A (en) | 2007-06-20 |
| CN100499867C CN100499867C (en) | 2009-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451827A (en) * | 2017-12-11 | 2019-03-08 | 北京小米移动软件有限公司 | Determine method and device, base station and the user equipment of user equipment movement speed |
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2006
- 2006-04-04 CN CNB2006100720474A patent/CN100499867C/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109451827A (en) * | 2017-12-11 | 2019-03-08 | 北京小米移动软件有限公司 | Determine method and device, base station and the user equipment of user equipment movement speed |
| CN109451827B (en) * | 2017-12-11 | 2022-04-15 | 北京小米移动软件有限公司 | Method and device for determining moving speed of user equipment, base station and user equipment |
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| CN100499867C (en) | 2009-06-10 |
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Effective date of registration: 20211222 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: Super fusion Digital Technology Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |
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