CN101154976B - Compensation method for intelligent antenna system after failure of part of channels - Google Patents
Compensation method for intelligent antenna system after failure of part of channels Download PDFInfo
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- CN101154976B CN101154976B CN2006101526490A CN200610152649A CN101154976B CN 101154976 B CN101154976 B CN 101154976B CN 2006101526490 A CN2006101526490 A CN 2006101526490A CN 200610152649 A CN200610152649 A CN 200610152649A CN 101154976 B CN101154976 B CN 101154976B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The present invention discloses a method for compensating when part of channels in the intelligent antenna system lapses. The invention aims at the problem that the downward beam shaping capacity of the intelligent antennae will dramatically decline when a certain or a plurality of channels in the intelligent antenna system lapse. The compensating method of the invention in the intelligent antenna system when part channels lapse comprises the steps of: (1) obtaining the number of the disabled ascending descending channels, the disabled channel number and the lapse style; (2) sharing equally the business of all the user covered by the intelligent antenna system to each effective descending antenna to transmit if the lapse style is that the shaping antenna of the special channel is damaged; and choosing the channel with the maximal transmitting power in the effective descending channel or adapting the common signal channel to compensate the weight by the descending beam shaping weight if the lapse style is that the shaping antenna of the common signal channel is damaged. The invention perfects the covering of the intelligent antenna system to the small district and increases the capacity of the small district and the speech quality of the user.
Description
Technical field
The present invention relates to the compensation method after a kind of antenna system middle part subchannel lost efficacy, relate in particular to the base station of the employing intelligent antenna technology of communication field.
Background technology
Intelligent antenna technology is a kind of new technology that more and more comes into one's own in the moving communicating field, especially in the working method of TDD, the uplink and downlink channel uses same carrier frequency, can think that same user's up-downgoing channel is symmetrical fully, thereby help the use of intelligent antenna technology.
Antenna system is made up of one group of antenna array and transceiver that links to each other and advanced person's digital signal processing algorithm.Smart antenna can be according to the variation of user's position, the sensing of adaptive adjustment wave beam makes main lobe aim at desired user, and zero falls into or secondary lobe is aimed at non-desired user, thereby effectively reduce the transmitting power of base station, reach and eliminate the purpose of disturbing and improving power system capacity.
Because generally do not compensate after existing antenna system middle part subchannel loses efficacy, when some in the system or certain several channel failure, the down beam shaping performance of smart antenna will obviously descend.This shows that mainly for common signal channel, during down going channel, the deviation in roundness of down beam shaping directional diagram is variation obviously, thereby has influence on the covering of sub-district; For dedicated channel, during down going channel, the main lobe of down beam shaping directional diagram may will can not point to the desired user direction, may raise simultaneously secondary lobe and zero falls into, thereby directly have influence on speech quality, and have influence on and cover and capacity, and may cause during up inefficacys the up DOA estimation may not be accurate.
Application number is that the Chinese patent " smart antenna array element lost efficacy the back system method of allocation optimum again " of CN200410009329 relates to that a kind of smart antenna array element (passage) lost efficacy that the up-downgoing passage of back smart antenna detects and system's method of allocation optimum again, how to compensate descending beam shape-endowing weight value after not relating to channel failure.
Summary of the invention
At defective and the deficiency that prior art exists, the compensation method after antenna system of the present invention middle part subchannel lost efficacy can compensate descending beam shape-endowing weight value behind the base station system part channel failure of smart antenna.
In order to reach the foregoing invention purpose, the compensation method after antenna system of the present invention middle part subchannel lost efficacy may further comprise the steps:
(1) obtains the up-downgoing passage number, inefficacy channel number and the failure type that lost efficacy;
(2) if being the dedicated channel shaped aerial, damages failure type, when data feedback channel inefficacy number during greater than the maximum failure array number, or down going channel inefficacy number is during greater than the maximum failure array number, or data feedback channel inefficacy number to equal the maximum failure array number and remain effective data feedback channel be non-geometric position consecutive hours, or down going channel inefficacy number to equal the maximum failure array number and remain effective down going channel be non-geometric position consecutive hours, the business that this antenna system is covered all users is down shared equally to each effective uplink/downlink antenna and is launched;
If being the common signal channel shaped aerial, damages failure type, equaling the maximum failure array number and remain effective down going channel when down going channel inefficacy number is the geometric position consecutive hours, or down going channel inefficacy number is greater than zero and during less than the maximum failure array number, the common signal channel shaped aerial damages the back descending beam shape-endowing weight value and adopts common signal channel compensation weights, under other situations, the common signal channel shaped aerial damages the back and is effectively selecting the passage of transmitting power maximum to launch in the down going channel.
In the compensation method after above-mentioned antenna system middle part subchannel lost efficacy, share equally in the described step (2) and be specially: the maximum number of user that every effective uplink/downlink antenna is shared is to be not less than total number of users divided by effective uplink/downlink antenna number gained merchant's smallest positive integral.
Compensation method after antenna system of the present invention middle part subchannel lost efficacy, by behind the base station system part channel failure of smart antenna, descending beam shape-endowing weight value being compensated, the perfect covering of antenna system to the sub-district improved cell capacity and user's communication quality.
Description of drawings
Fig. 1 realizes correlation module figure for the descending beam shape-endowing weight value backoff algorithm;
Fig. 2 is dedicated channel array element (passage) inefficacy backoff algorithm realization flow figure;
Fig. 3 is common signal channel array element (passage) inefficacy backoff algorithm realization flow figure;
Fig. 4 is 8 antenna linear array floor map;
Fig. 5 is 8 antenna linear array array elements, 0 inefficacy common signal channel figuration compensation results;
Fig. 6 is 8 antenna linear array array elements, 0,1,2,3 inefficacy common signal channel figuration compensation results.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
Just the principles illustrated with the descending beam shape-endowing weight value compensation method behind the part channel failure is as follows below the present invention:
The first step obtains the failure type of up-downgoing passage according to the channel failure testing result:
Mainly finish the inefficacy number of up-downgoing passage and the calculating of inefficacy channel number in this step, wherein the inefficacy number with the up-downgoing passage is designated as UlErrNum and DlErrNum respectively.
In second step, calculate descending beam shape-endowing weight value according to the result of calculation of the first step.If array number is K
a, the up maximum failure array number that can accurately estimate DOA, descending accurately wave beam forming is N, and is special, works as K
a=8 o'clock, N=4.
The specific implementation process of this step is:
1, work as UlErrNum=0, during DlErrNum=0, descending beam shape-endowing weight value obtains by the normal process flow process, need not compensation deals;
2,,, be divided into following several situation and handle if there is antenna to damage for the dedicated channel figuration:
1) when 0≤UlErrNum≤N-1, up DOA estimated result is effective, can be divided into following two kinds of situations again:
A) as 1≤DlErrNum≤N-1, descending beam shape-endowing weight value obtains by the normal process flow process, need not compensation deals;
B) work as DlErrNum=N, and be geometric position continuous N passage when effective, descending beam shape-endowing weight value obtains by the normal process flow process, need not compensation deals;
C) work as DlErrNum=N, and continuous N the passage in non-geometric position be when effective, the business of different user is shared out equally on the different single antenna and is launched.Concrete business is shared criterion,
If number of users is UeNum, effectively the uplink/downlink antenna number is DlActNum (DlActNum ≠ 0), and then the maximum number of user shared of every antenna is
Since first effective antenna, share K successively
uIndividual user, until all users share finish till;
D) when DlErrNum 〉=N+1, the business of different user is by situation c) business share criterion and share out equally on the different single antenna and launch;
2) work as UlErrNum=N, and be geometric position continuous N passage when effective, up DOA estimated result is effective, by situation 1) handle;
3) for other up failure conditions, no matter whether descending inefficacy to be, and DOA estimates not have reference value, and this moment is descending can not utilize DOA information, and the business of different user is by situation 1) middle c) business share criterion and share out equally on the different single antenna and launch.
3,,, be divided into following several situation and handle if there is antenna to damage for the common signal channel figuration:
1) when 1≤DlErrNum≤N-1, descending beam shape-endowing weight value adopts common signal channel compensation weights (concrete weights can require simulation criteria obtain according to common signal channel figuration deviation in roundness);
2) work as DlErrNum=N, and be geometric position continuous N passage when effective, descending beam shape-endowing weight value is by situation 1) processing mode handles;
3) other situations are selected the passage emission of transmitting power maximum in effective descending array element.
Compensation result when Fig. 5 and Fig. 6 have provided 8 antenna linear array common signal channel figuration array elements 0 and array element 0,1,2,3 inefficacies respectively, the common signal channel figuration effect that is compensated as can be seen before the back compensates relatively by compensation result figure has had obvious improvement.
In sum, the present invention proposes antenna system middle part subchannel and lost efficacy down a kind of thought and concrete implementation method of compensating.Should be understood that the description to above-mentioned preferred embodiment of the present invention is comparatively concrete, can not therefore think restriction scope of patent protection of the present invention.The present invention is applicable to the communication system that all adopt intelligent antenna technology, and scope of patent protection should be as the criterion with claims.
Claims (2)
1. the compensation method after an antenna system middle part subchannel lost efficacy is characterized in that: may further comprise the steps:
(1) obtains the up-downgoing passage number, inefficacy channel number and the failure type that lost efficacy;
(2) if being the dedicated channel shaped aerial, damages failure type, when data feedback channel inefficacy number during greater than the maximum failure array number, or down going channel inefficacy number is during greater than the maximum failure array number, or data feedback channel inefficacy number to equal the maximum failure array number and remain effective data feedback channel be non-geometric position consecutive hours, or down going channel inefficacy number to equal the maximum failure array number and remain effective down going channel be non-geometric position consecutive hours, the business that this antenna system is covered all users is down shared equally to each effective uplink/downlink antenna and is launched;
If being the common signal channel shaped aerial, damages failure type, equaling the maximum failure array number and remain effective down going channel when down going channel inefficacy number is the geometric position consecutive hours, or down going channel inefficacy number is greater than zero and during less than the maximum failure array number, the common signal channel shaped aerial damages the back descending beam shape-endowing weight value and adopts common signal channel compensation weights, under other situations, the common signal channel shaped aerial damages the back and is effectively selecting the passage of transmitting power maximum to launch in the down going channel.
2. the compensation method after antenna system according to claim 1 middle part subchannel lost efficacy is characterized in that: share equally in the described step (2) and be specially: the maximum number of user that every effective uplink/downlink antenna is shared is to be not less than total number of users divided by effective uplink/downlink antenna number gained merchant's smallest positive integral.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101526490A CN101154976B (en) | 2006-09-26 | 2006-09-26 | Compensation method for intelligent antenna system after failure of part of channels |
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| CN2006101526490A CN101154976B (en) | 2006-09-26 | 2006-09-26 | Compensation method for intelligent antenna system after failure of part of channels |
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| CN101154976B true CN101154976B (en) | 2011-08-24 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101605336B (en) * | 2008-10-07 | 2011-07-06 | 中国移动通信集团设计院有限公司 | Method and device for determining wireless network of multiaerial system |
| CN102142869B (en) | 2010-11-22 | 2014-04-30 | 华为技术有限公司 | Method and device for compensating active antenna failure and active antenna equipment |
| CN106301508B (en) * | 2015-05-19 | 2020-09-25 | 中兴通讯股份有限公司 | Order reduction method and device for antenna channel |
| CN106332150B (en) * | 2015-06-26 | 2020-04-10 | 中兴通讯股份有限公司 | Antenna failure compensation method and device |
| CN105490720B (en) * | 2015-12-18 | 2018-09-14 | 京信通信系统（中国）有限公司 | The method and device of Active Arrays failure compensation |
| CN108242960B (en) * | 2017-12-29 | 2020-12-29 | Oppo广东移动通信有限公司 | Channel line loss correction method, device, storage medium and computer equipment |
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| US5936592A (en) * | 1998-06-05 | 1999-08-10 | Ramanujam; Parthasarathy | Reconfigurable multiple beam satellite reflector antenna with an array feed |
| US6084541A (en) * | 1998-07-13 | 2000-07-04 | Comsat Corporation | Self diagnosis and self healing scheme for digital beam-forming |
| US20050122264A1 (en) * | 2003-10-03 | 2005-06-09 | Agence Spatiale Europeenne | Multi-beam communication satellite antenna with failure compensation |
| CN1722871A (en) * | 2004-07-13 | 2006-01-18 | 中兴通讯股份有限公司 | Method of optimal system reconfiguration after intelligent antenna array element failure |
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