CN1859786A - Method for processing up link power unbalance - Google Patents
Method for processing up link power unbalance Download PDFInfo
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- CN1859786A CN1859786A CNA2006100347864A CN200610034786A CN1859786A CN 1859786 A CN1859786 A CN 1859786A CN A2006100347864 A CNA2006100347864 A CN A2006100347864A CN 200610034786 A CN200610034786 A CN 200610034786A CN 1859786 A CN1859786 A CN 1859786A
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Abstract
The present invention discloses uplink power balanceless processing method. It contains after UE generating soft switching, RNC notifying NodeB monitoring UE link uplink signal quality, when link uplink signal mass parameter measured value less than predetermined threshold, RNC notifying MDC stopping waiting said link uplink data and mergence processing, when said link uplink signal mass parameter measured value greater than predetermined threshold, RNC notifying MDC recovering waiting said link uplink data and mergence processing.
Description
Technical field
The present invention relates to the wireless communication technique field, especially a kind of method for processing up link power unbalance.
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 (base station), 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 carry out the signal emission 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 can be poor, also can produce uplink loss when serious.
Based on top analysis, under soft changing state, the up-link power imbalance occurring is commonplace phenomenon, and the quality of part of links descends even step-out, can influence the up gain of soft handover, even can produce negative gain.Because the MDC among the RNC (grand diversity control) entity can buffer memory and waited for the data of every link, pass to upper layer entity again after merging processing.If there is the non-constant of the quality of part of links, be combined not only and can not produce any gain, can produce extra time delay because of the data that will wait for this link on the contrary.
At present, under soft changing state, if because the up-link power imbalance Radio Link uplink loss takes place, after RNC receives Radio Link uplink loss message, directly with this link circuit deleting.There are following two shortcomings in the up negative gain problem of soft handover that the link step-out causes though this processing method can be avoided:
1) before the Radio Link uplink loss, the up quality of this link is very poor in fact, and RNC does not have and can in time detect, so can't avoid the negative gain problem of the step-out soft handover that the power imbalance is caused between link before.
2) 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 again uplink loss may appear, continuous so frequent link additions and deletions process will appear repeatedly, not only increase signaling traffic load unnecessary, also influenced descending soft handover and merged gain, caused the decline of service quality.
Summary of the invention
Purpose of the present invention is for providing a kind of method for processing up link power unbalance, it can promptly and accurately monitor up second-rate link, avoided having improved the quality of business service owing to the negative gain problem of the part of links quality soft handover that causes on the low side.
The objective of the invention is to be achieved by following technical scheme:
A kind of method for processing up link power unbalance comprises:
After soft handover takes place in A, UE, the quality of uplink signal of each bar link of NodeB monitoring UE, less than default thresholding, RNC notice MDC stops the wait of this link upstream data and merges handling as link quality of uplink signal measured value of parameters;
B, when this link quality of uplink signal measured value of parameters greater than default thresholding, RNC notice MDC recovers the wait of this link upstream data and merges to handle.
In the steps A, the quality of uplink signal of each bar link of RNC notice NodeB monitoring UE.
Wherein, described quality of uplink signal parameter is SIR ERROR.
Wherein, NodeB measures the SIRERROR of each bar up link by affair mode or period measurement mode.
Wherein, in the steps A, after soft handover took place UE, " the special measurement request information, NodeB returned " special measurement response " message to RNC after receiving this message to RNC to all NodeB transmissions of current active collection sub-district correspondence.
Wherein, NodeB measures SIR ERROR value less than default Lower Threshold, and then RNC notice MDC stops the wait and the merging of this link upstream data are handled.
Wherein, NodeB measures SIR ERROR value less than default Lower Threshold, sends " special measurement report " message to RNC, and after RNC received this message, notice MDC stopped the wait of this link upstream data and merge handling.
Wherein, NodeB measures SIR ERROR value greater than default Upper threshold, and then RNC notice MDC recovers the wait and the merging of this link upstream data are handled.
Wherein, NodeB measures SIR ERROR value greater than default Upper threshold, sends " special measurement report " message to RNC, and after RNC received this message, notice MDC recovered the wait of this link upstream data and merge to handle.
Wherein, described method is applied to WCDMA or CDMA2000 wireless telecommunication system.
Method for processing up link power unbalance during the soft handover that the present invention proposes, quality of uplink signal by each link of monitoring UE, can find out the relatively poor link of quality of uplink signal timely and accurately, and notice MDC does not merge processing to the upstream data of this link, avoided owing to the negative gain problem of the part of links quality soft handover that causes on the low side, alleviate signaling traffic load, improved the quality of business service.
Description of drawings
Fig. 1 is the soft handover schematic diagram between different N odeB;
An embodiment flow chart of the uneven processing method of Fig. 2 up-link power of the present invention.
Embodiment
The invention provides a kind of method for processing up link power unbalance, when soft handover takes place in UE, by detecting the quality of uplink signal of each bar link of this UE, when the quality of uplink signal that monitors link does not meet necessarily required the time, then RNC notice MDC stops the wait of this link upstream data and merges handling; When the quality of uplink signal of this link recovered, then RNC notice MDC recovered the wait and the merging of this link upstream data are handled.Wherein, can select suitable measurement parameter as required, set corresponding threshold value according to measurement parameter, and select corresponding metering system, as period measurement mode or affair mode to the monitoring of link quality of uplink signal.
Following specific embodiment is an example with the WCDMA communication system, by measuring up link SIRERROR (difference between signal interference ratio estimated value and the desired value) the link quality of uplink signal is monitored, adopt the mode of affair in the present embodiment, wherein, Lower Threshold and Upper threshold be set to respectively-adB and-b dB (a＞=b＞0), SIR ERROR measured value is designated as the Fa incident less than measuring the specified Lower Threshold of control, and the non-constant of quality of uplink signal of this link of Fa representations of events takes place; SIR ERROR measured value is designated as the Fb incident greater than measuring the specified Upper threshold of control, and the quality of uplink signal that this link of Fb representations of events takes place recovers, and can recover the processing to this link.
The present invention will be further described below in conjunction with accompanying drawing:
With reference to figure 2, use method for processing up link power unbalance process of the present invention as follows:
Step 1, UE are carried out in the process in conversation or other business, because the position moves soft handover takes place, suppose that current active is concentrated and comprise multilink, be labeled as respectively RL1, RL2 ..., RLn, and the upward signal of these several links merges at the RNC place.
Step 2, RNC send DEDICATEDMEASUREMENT INITIATION REQUEST (special measurement request) message to all NodeB of current active collection sub-district correspondence, and wherein measuring type is SIR ERROR; RNC shows that measuring control sets up successfully after receiving DEDICATED MEASUREMENTINITIATION RESPONSE (special measurement response) message that NodeB returns.
NodeB can in time report corresponding measurement report to RNC after SIR ERROR satisfies Fa or Fb trigger conditions.
Step 3, NodeB detect link RL1 up SIR ERROR Fa incident take place, send DEDICATED MEASUREMENT REPORT (special measurement report) message (difference that takes place between SIR ERROR Fa representations of events sir measurement value and the desired value is controlled specified Lower Threshold less than measuring, and represents the non-constant of quality of uplink signal of this link) to RNC.
After step 4, RNC learnt that SIR ERROR Fa incident takes place link RL1, notice MDC entity RL1 quality of uplink signal was on the low side, and MDC no longer waits for and merge the upstream data of RL1 branch road.
Step 5, NodeB detect link RL1 up SIR ERROR Fb incident take place, (difference that takes place between SIR ERROR Fb representations of events sir measurement value and the desired value is controlled specified Upper threshold greater than measuring to send DEDICATED MEASUREMENT REPORT message to RNC, the quality of uplink signal of representing this link recovers, and can recover the processing to this link).
After step 6, RNC learnt that SIR ERROR Fb incident takes place link RL1, notice MDC entity RL1 quality of uplink signal recovered normal, and MDC recovers the wait of link RL1 branch road upstream data and merge to handle.
The method for processing up link power unbalance that the present invention proposes can be widely used in the wireless telecommunication system that WCDMA, CDMA2000 etc. support soft handover; The method that adopts the present invention to propose can promptly and accurately monitor up second-rate link, has avoided having alleviated signaling traffic load owing to the negative gain problem of the part of links quality soft handover that causes on the low side, has improved the quality of business service.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of method for processing up link power unbalance is characterized in that: comprising:
After soft handover takes place in A, UE, the quality of uplink signal of each bar link of NodeB monitoring UE, less than default thresholding, RNC notice MDC stops the wait of this link upstream data and merges handling as link quality of uplink signal measured value of parameters;
B, when this link quality of uplink signal measured value of parameters greater than default thresholding, RNC notice MDC recovers the wait of this link upstream data and merges to handle.
2, method for processing up link power unbalance as claimed in claim 1 is characterized in that, in the steps A, and the quality of uplink signal of each bar link of RNC notice NodeB monitoring UE.
3, method for processing up link power unbalance as claimed in claim 1 is characterized in that, described quality of uplink signal parameter is SIR ERROR.
4, method for processing up link power unbalance as claimed in claim 3 is characterized in that, NodeB measures the SIR ERROR of each bar up link by affair mode or period measurement mode.
5, method for processing up link power unbalance as claimed in claim 1, it is characterized in that, in the steps A, after soft handover takes place in UE, " the special measurement request information, NodeB returns " special measurement response " message to RNC after receiving this message to RNC to all NodeB transmissions of current active collection sub-district correspondence.
6, method for processing up link power unbalance as claimed in claim 3 is characterized in that, NodeB measures SIR ERROR value less than default Lower Threshold, and then RNC notice MDC stops the wait and the merging of this link upstream data are handled.
7, method for processing up link power unbalance as claimed in claim 6, it is characterized in that, NodeB measures SIR ERROR value less than default Lower Threshold, send " special measurement report " message to RNC, after RNC received this message, notice MDC stopped the wait of this link upstream data and merges handling.
8, method for processing up link power unbalance as claimed in claim 3 is characterized in that, NodeB measures SIR ERROR value greater than default Upper threshold, and then RNC notice MDC recovers the wait and the merging of this link upstream data are handled.
9, method for processing up link power unbalance as claimed in claim 8, it is characterized in that, NodeB measures SIR ERROR value greater than default Upper threshold, send " special measurement report " message to RNC, after RNC received this message, notice MDC recovered the wait of this link upstream data and merges to handle.
10, as any described method for processing up link power unbalance of claim of claim 1-9, it is characterized in that described method is applied to WCDMA or CDMA2000 wireless telecommunication system.
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| CNB2006100347864A CN100455126C (en) | 2006-03-28 | 2006-03-28 | Method for processing up link power unbalance |
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| CNB2006100347864A CN100455126C (en) | 2006-03-28 | 2006-03-28 | Method for processing up link power unbalance |
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| CN100455126C CN100455126C (en) | 2009-01-21 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752842A (en) * | 2012-06-21 | 2012-10-24 | 华为技术有限公司 | Transmission power control combination method during soft switch of mobile terminal and mobile terminal |
| WO2013185690A1 (en) * | 2012-07-25 | 2013-12-19 | 中兴通讯股份有限公司 | Power control method and device |
| CN104105182A (en) * | 2013-04-12 | 2014-10-15 | 中兴通讯股份有限公司 | Method and base station for realizing inner loop closed-loop power control |
| CN104754675A (en) * | 2013-12-27 | 2015-07-01 | 中兴通讯股份有限公司 | Soft handoff processing method and soft handoff processing device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241438C (en) * | 2001-07-11 | 2006-02-08 | 中兴通讯股份有限公司 | Method and device for upgrading non-intelligent antenna base station to intelligent one |
| CN1173503C (en) * | 2001-12-28 | 2004-10-27 | 华为技术有限公司 | Power control method of high-speed physical control channel in high-speed data access system |
| JP4014597B2 (en) * | 2002-06-25 | 2007-11-28 | 富士通株式会社 | Power control method and apparatus |
| KR100547139B1 (en) * | 2003-09-03 | 2006-01-26 | 학교법인 고황재단 | METHOD AND APPARATUS FOR DELIVERING MPEG MEDIA DATA USING IETF QoS PROTOCOLS |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752842A (en) * | 2012-06-21 | 2012-10-24 | 华为技术有限公司 | Transmission power control combination method during soft switch of mobile terminal and mobile terminal |
| WO2013189307A1 (en) * | 2012-06-21 | 2013-12-27 | 华为技术有限公司 | Method of combining transmission power control during soft handover of mobile terminal, and mobile terminal |
| CN102752842B (en) * | 2012-06-21 | 2016-03-09 | 华为技术有限公司 | Transmitting power control merging method during mobile terminal soft handover and mobile terminal |
| WO2013185690A1 (en) * | 2012-07-25 | 2013-12-19 | 中兴通讯股份有限公司 | Power control method and device |
| CN104105182A (en) * | 2013-04-12 | 2014-10-15 | 中兴通讯股份有限公司 | Method and base station for realizing inner loop closed-loop power control |
| CN104105182B (en) * | 2013-04-12 | 2019-05-10 | 中兴通讯股份有限公司 | Realize method and the base station of inner ring close-loop power control |
| CN104754675A (en) * | 2013-12-27 | 2015-07-01 | 中兴通讯股份有限公司 | Soft handoff processing method and soft handoff processing device |
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| CN100455126C (en) | 2009-01-21 |
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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: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |