CN1859034B - Method for up-link breaking step for soft switch period - Google Patents
Method for up-link breaking step for soft switch period Download PDFInfo
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- CN1859034B CN1859034B CN200510037044A CN200510037044A CN1859034B CN 1859034 B CN1859034 B CN 1859034B CN 200510037044 A CN200510037044 A CN 200510037044A CN 200510037044 A CN200510037044 A CN 200510037044A CN 1859034 B CN1859034 B CN 1859034B
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Abstract
This invention discloses a method for processing loss of synchronization of the up-link in the soft switch period, when loss of synchronization happens to part links in the soft switch, the RNC does not delete it but maintains it in the action set and informs the MDC entity to stop waiting and merging the up data of the branch of said link, which can keep the down soft switch gain of the link and avoid the phenomenon of adding or deleting links frequently resulted in the loss of synchronization of the up link.
Description
Technical field
The present invention relates to the processing method of link step-out in the WCDMA field, especially a kind of method that is used for up-link breaking step during the soft handover.
Background technology
In field of wireless communication, the air interface of WCDMA system adopts FDD (Frequency Division Duplexing (FDD)) standard, its distinguishing feature in mobile management is to adopt soft hand-off, and promptly UE (user terminal) can carry out communication by multi wireless links and network.When the soft handover multi wireless links merges,, choose one preferably of signal, thereby reach the purpose of optimizing communication quality by relatively.Wherein, up soft handover carries out multipath and merges in RNC (radio network controller), and up More Soft Handoff is carried out multipath and merged in NodeB, and descending soft handover merges in UE.With reference to figure 1, two active sets (set of current all links that link to each other with UE) sub-district of UE belongs to two different NODEB respectively, during soft handover, when drift takes place in the descending power of different links, can adjust descending power by DPB (download power balancing) function, thereby guarantee that the signal power when every link arrives UE is equal substantially, reach best merging gain.
For up link, UE can only transmit with unified power; When adjusting ascending power, UE has carried out merging processing to TPC (transmitting power control) order of every link, and the UE transmitting power that just can raise when having only all links all to require power per liter is as long as there is the link power of will begging to surrender then to reduce transmitting power.Like this because the uplink interference difference of coverage radius of cell difference or sub-district, the signal that different links arrive NODEB falls far short probably, to or uplink interference bigger link relatively far away from the base station, its upward signal ratio is easier to not reach quality requirement, thereby produces uplink loss.
Based on top analysis, under soft changing state,, even can produce negative gain if the up link imbalance will be easy to cause the wherein uplink loss of part of links, thereby loses the up gain of soft handover.Because the MDC among the RNC (grand diversity control) entity can buffer memory and the data of waiting for every branch road pass to upper layer entity again after merging processing, because wherein uplink loss has taken place in a wireless links, and MDC and not knowing, so influenced the timely processing of upstream data, increased uplink time delay.
At present, if the Radio Link uplink loss takes place during the soft handover, and on this link did not have synchronously in the regular hour, RNC can be with this link circuit deleting.This processing method, though can avoid because the up negative gain problem of soft handover that the link step-out causes, but since this moment this link place the cell downlink pilot signal can satisfy the quality requirement of UE active set, UE is very fast can to report same-frequency measure reporting again, cause RNC that it is added active set, and then uplink loss may occur again, constantly like this will occur frequent link additions and deletions process repeatedly, not only increase signaling traffic load unnecessary, also might cause the decline of service quality.
Summary of the invention
In view of above-mentioned existing in prior technology problem, purpose of the present invention is for providing a kind of method that is used for up-link breaking step during the soft handover, it has been avoided because of the up link step-out causes frequent additions and deletions link, has solved because of the uneven negative effect that causes of up link.
The objective of the invention is to be achieved by following technical scheme:
A kind of method that is used for up-link breaking step during the soft handover mainly may further comprise the steps:
During A, the soft handover behind the part of links generation uplink loss, RNC receives that (additions and deletions of link are not triggered by other strategies fully with its deletion after this link uplink loss message, as: the same-frequency measure reporting of UE, cell load control etc.), but it is retained in the active set, and notice MDC entity stops the upstream data of this link branch road is waited for and merged processing.
In the said process, steps A comprises:
A1, NODEB detect wherein link generation uplink loss, send " Radio Link Failure indication " message to RNC, and the indication failure is former because uplink loss;
A2, RNC notify the MDC entity this link uplink loss after receiving this link uplink loss message, and MDC is merging the upstream data of no longer waiting for this link branch road when handling.
Wherein, this method is further comprising the steps of:
After B:RNC receives uplink synchronisation message, in time notify the MDC entity to recover the wait and the merging of this link branch road upstream data are handled.
In the said process, step B comprises:
B1, NODEB detect this link uplink synchronous, send " wireless link recovery " message to RNC;
This link of notice MDC entity was up synchronous after B2, RNC received this link uplink synchronous message, and MDC recovers the merging of this link branch road upstream data is handled.
The present invention is used for the method for up-link breaking step during the soft handover, not only kept existing descending soft handover gain, simultaneously the up soft handover that also can not produce is born gain, also avoided because the phenomenon of the frequent additions and deletions link that the up link step-out causes has solved effectively because of the uneven negative effect that causes of up link; Alleviate signaling traffic load, improved service quality.
Description of drawings
Fig. 1 is the soft handover schematic diagram between different N ODEB
Up-link wireless link step-out process chart during Fig. 2 soft handover
Embodiment
The present invention will be further described below in conjunction with accompanying drawing:
With reference to figure 2, use the inventive method processing section link generation uplink loss process during soft handover as follows:
1, UE carries out in the process in conversation or other business, because the position moves soft handover takes place, supposes that current active is concentrated and comprises multilink, be labeled as respectively RL1, RL2 ... ..., RLn, and the upward signal of these several links merges at the RNC place.
2, NODEB detects RL1 generation uplink loss, sends RADIO LINKFAILURE INDICATION message to RNC, and the indication failure is former because uplink loss.
3, RNC does not delete this link after receiving RL1 uplink loss message, but it is retained in the active set, and notice MDC entity RL1 uplink loss, and MDC is merging the upstream data of no longer waiting for the RL1 branch road when handling.
4, NODEB detects the RL1 uplink synchronous, sends RADIO LINK RESTOREINDICATION message to RNC.
5, RNC notifies MDC entity RL1 up synchronous after receiving RL1 uplink synchronous message at once, and MDC recovers the merging of RL1 branch road upstream data is handled.
The method of up-link breaking step during soft handover that adopts that the present invention proposes, the descending soft handover gain that has not only kept link, can not produce the negative gain of up soft handover, also avoided simultaneously because the phenomenon of the frequent additions and deletions link that the up link step-out causes, can solve the problem that causes owing to the up link imbalance effectively, improve the quality of business service.
Though by with reference to the foregoing description, the present invention is illustrated and describes, those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (4)
1. method that is used for up-link breaking step during the soft handover is characterized in that: may further comprise the steps:
Behind the part of links generation uplink loss, RNC is retained in this link in the active set after receiving this link uplink loss message during A, the soft handover, and notifies grand diversity control (MDC) entity to stop the upstream data of this link branch road is waited for and merged processing.
2. the method that is used for up-link breaking step during the soft handover as claimed in claim 1 is characterized in that steps A comprises:
A1, NODEB detect wherein link generation uplink loss, send " Radio Link Failure indication " message to RNC, and the indication failure is former because uplink loss;
A2, RNC notify the MDC entity this link uplink loss after receiving this link uplink loss message, and MDC is merging the upstream data of no longer waiting for this link branch road when handling.
3. the method that is used for up-link breaking step during the soft handover as claimed in claim 1 or 2 is characterized in that this method is further comprising the steps of:
After B:RNC receives uplink synchronisation message, in time notify the MDC entity to recover the wait and the merging of this link branch road upstream data are handled.
4. the method that is used for up-link breaking step during the soft handover as claimed in claim 3 is characterized in that step B comprises:
B1, NODEB detect this link uplink synchronous, send " wireless link recovery " message to RNC;
This link of notice MDC entity was up synchronous after B2, RNC received this link uplink synchronous message, and MDC recovers the merging of this link branch road upstream data is handled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200510037044A CN1859034B (en) | 2005-09-02 | 2005-09-02 | Method for up-link breaking step for soft switch period |
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| CN200510037044A CN1859034B (en) | 2005-09-02 | 2005-09-02 | Method for up-link breaking step for soft switch period |
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| CN1859034A CN1859034A (en) | 2006-11-08 |
| CN1859034B true CN1859034B (en) | 2010-05-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455097C (en) * | 2006-11-27 | 2009-01-21 | 华为技术有限公司 | Solution method for call loss and wireless network controller |
| CN101478817B (en) * | 2008-01-03 | 2012-05-23 | 中兴通讯股份有限公司 | Method for establishing fast uplink synchronization under non-CELL_DCH status |
| CN103687064B (en) * | 2009-04-22 | 2017-07-14 | 华为技术有限公司 | The processing method of radio link failure, device and system |
| CN102710370B (en) * | 2012-05-18 | 2015-03-18 | 华为技术有限公司 | Processing method and terminal of uplink air-interface signaling |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237314A (en) * | 1996-09-27 | 1999-12-01 | 夸尔柯姆股份有限公司 | Method and apparatus for adjacent service area handoff in communication systems |
| KR20040029722A (en) * | 2002-10-02 | 2004-04-08 | 삼성전자주식회사 | Method of soft handoff in universal mobile telecommunications system |
| CN1627843A (en) * | 2003-12-10 | 2005-06-15 | 华为技术有限公司 | Method for dynamic adjusting bandwidth in public service channel |
| CN1640169A (en) * | 2001-06-29 | 2005-07-13 | 高通股份有限公司 | Communication system employing multiple handoff criteria |
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- 2005-09-02 CN CN200510037044A patent/CN1859034B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237314A (en) * | 1996-09-27 | 1999-12-01 | 夸尔柯姆股份有限公司 | Method and apparatus for adjacent service area handoff in communication systems |
| CN1640169A (en) * | 2001-06-29 | 2005-07-13 | 高通股份有限公司 | Communication system employing multiple handoff criteria |
| KR20040029722A (en) * | 2002-10-02 | 2004-04-08 | 삼성전자주식회사 | Method of soft handoff in universal mobile telecommunications system |
| CN1627843A (en) * | 2003-12-10 | 2005-06-15 | 华为技术有限公司 | Method for dynamic adjusting bandwidth in public service channel |
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Effective date of registration: 20211221 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |