KR100880971B1 - 통신 장치 및 그의 sir 추정 방법 - Google Patents
통신 장치 및 그의 sir 추정 방법 Download PDFInfo
- Publication number
- KR100880971B1 KR100880971B1 KR20070061145A KR20070061145A KR100880971B1 KR 100880971 B1 KR100880971 B1 KR 100880971B1 KR 20070061145 A KR20070061145 A KR 20070061145A KR 20070061145 A KR20070061145 A KR 20070061145A KR 100880971 B1 KR100880971 B1 KR 100880971B1
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- South Korea
- Prior art keywords
- sir
- signal
- data
- transmission
- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0658—Feedback reduction
- H04B7/066—Combined feedback for a number of channels, e.g. over several subcarriers like in orthogonal frequency division multiplexing [OFDM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims (7)
- 싱글 캐리어 주파수 분할 다중 액세스(SC-FDMA) 전송 방식에 의해 통신을 행하는 통신 장치의 SIR 추정 방법에 있어서,신호 대역폭 내의 각 서브캐리어에서의 채널 추정값과 주파수 등화에 이용하는 가중 계수를 이용하여 소정 송신 안테나로부터의 신호와 간섭의 비인 SIR을 추정하는 것을 특징으로 하는 SIR 추정 방법.
- 제1항 또는 제2항에 있어서,상기 SIR에 기초하여 싱글 캐리어 주파수 분할 다중 액세스(SC-FDMA) 전송 방식에서의 부호화율과 변조 방식을 결정하는 것을 특징으로 하는 SIR 추정 방법.
- 제1항 또는 제2항에 있어서,MIMO 전송 방식에 의해 복수의 송신 안테나로부터 복수의 수신 안테나에 SC-FDMA에 의해 송신하는 경우에, 상기 SIR을 측정하여 적응 변복조 제어하는 것을 특징으로하는 SIR 추정 방법.
- 제1항 또는 제2항에 있어서,MIMO 전송 방식에 의해 복수의 송신 빔을 이용하여 복수의 수신 안테나에 SC-FDMA에 의해 송신하는 경우에, 상기 SIR을 측정하여 적응 변복조 제어하는 것을 특징으로 하는 SIR 추정 방법.
- 싱글 캐리어 주파수 분할 다중 액세스(SC-FDMA) 전송 방식에 의해 데이터를 송신하는 이동국의 부호화율 및 변조 방식을 결정하는 적응 변조 제어 기능을 갖춘 기지국 장치에 있어서,이동국의 소정 송신 안테나로부터의 신호와 간섭의 비인 SIR을 추정하는 SIR 추정부,상기 SIR에 기초하여 상기 이동국의 소정 송신 안테나로부터 송신하는 데이터의 부호화율 및 변조 방식을 결정하는 스케줄러, 및상기 부호화율 및 변조 방식을 이동국에 송신하는 송신부를 구비하고,상기 SIR 추정부는, 신호 대역폭 내의 각 서브캐리어에서의 채널 추정값과 주파수 등화에 이용하는 가중 계수를 이용하여 상기 이동국의 소정 송신 안테나로부터의 신호와 간섭의 비인 SIR을 추정하는 것을 특징으로 하는 기지국 장치.
- 싱글 캐리어 주파수 분할 다중 액세스(SC-FDMA) 전송 방식에 의해 기지국으로부터 송신된 신호를 수신하고, 수신 정황을 기지국에 송신하는 이동국에 있어서,기지국의 소정 송신 안테나로부터의 신호와 간섭의 비인 SIR을 추정하는 SIR 추정부,상기 SIR에 기초하여 상기 기지국의 소정 송신 안테나로부터 그 이동국을 향하여 송신하는 데이터의 부호화율 및 변조 방식을 결정하기 위하여 필요한 CQI값을 결정하는 CQI 결정부, 및상기 CQI값을 기지국에 송신하는 송신부를 구비하고,상기 SIR 추정부는, 신호 대역폭 내의 각 서브캐리어에서의 채널 추정값과 주파수 등화에 이용하는 가중 계수를 이용하여 상기 기지국의 소정 송신 안테나로부터의 신호와 간섭의 비인 SIR을 추정하는 것을 특징으로 하는 이동국.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2006-00226374 | 2006-08-23 | ||
JP2006226374A JP2008053906A (ja) | 2006-08-23 | 2006-08-23 | 通信装置及びそのsir推定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20080018092A KR20080018092A (ko) | 2008-02-27 |
KR100880971B1 true KR100880971B1 (ko) | 2009-02-03 |
Family
ID=38739346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20070061145A Expired - Fee Related KR100880971B1 (ko) | 2006-08-23 | 2007-06-21 | 통신 장치 및 그의 sir 추정 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080049636A1 (ko) |
EP (1) | EP1892860A2 (ko) |
JP (1) | JP2008053906A (ko) |
KR (1) | KR100880971B1 (ko) |
CN (1) | CN101132208B (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5221175B2 (ja) * | 2007-11-08 | 2013-06-26 | 京セラ株式会社 | 送信方法および送信装置ならびに受信方法および受信装置 |
WO2010143911A2 (ko) * | 2009-06-11 | 2010-12-16 | 엘지전자 주식회사 | 무선 통신 시스템에서 측정 보고 방법 및 장치 |
EP2495884B1 (en) * | 2009-10-30 | 2019-02-13 | Electronics and Telecommunications Research Institute | Transmission method of data in multi-user wireless communication system |
US8862175B2 (en) | 2009-12-29 | 2014-10-14 | Telefonaktiebolaget L M Ericsson (Publ) | Correction of estimated SIR used for transmit power control |
US8483337B2 (en) * | 2011-05-18 | 2013-07-09 | Qualcomm Incorporated | Cancelling interference by determining modulation and coding information embedded in a received spatial stream |
CN103812601A (zh) * | 2012-11-08 | 2014-05-21 | 中兴通讯股份有限公司 | 信道质量指示cqi的确定方法、装置及用户设备 |
KR102189637B1 (ko) | 2015-06-22 | 2020-12-11 | 삼성전자주식회사 | 수신 장치 및 그의 복호 방법 |
CN105591845B (zh) * | 2016-03-08 | 2018-10-09 | 哈尔滨工业大学 | 基于时变滤波的sc-fdma上行链路小区间干扰抑制方法 |
WO2018074393A1 (ja) | 2016-10-19 | 2018-04-26 | 日本電気株式会社 | 通信装置、通信システム、および通信方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010111273A (ko) * | 2000-01-14 | 2001-12-17 | 마츠시타 덴끼 산교 가부시키가이샤 | Sir 측정 장치, 이동국 장치, 기지국 장치 및 sir 측정 방법 |
KR20040037090A (ko) * | 2002-04-19 | 2004-05-04 | 마츠시타 덴끼 산교 가부시키가이샤 | Sir 측정 장치 및 방법 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7106792B2 (en) * | 2001-06-04 | 2006-09-12 | Qualcomm, Inc. | Method and apparatus for estimating the signal to interference-plus-noise ratio of a wireless channel |
WO2005099163A1 (en) * | 2004-04-08 | 2005-10-20 | Koninklijke Philips Electronics N.V. | Combining signal-interference-ratio (sir) estimates for improved sir estimation |
CN100421438C (zh) * | 2005-01-28 | 2008-09-24 | 山东大学 | 选频单载波分块传输系统中的比特加载方法 |
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2006
- 2006-08-23 JP JP2006226374A patent/JP2008053906A/ja not_active Withdrawn
-
2007
- 2007-05-01 EP EP20070107292 patent/EP1892860A2/en not_active Withdrawn
- 2007-05-03 US US11/797,450 patent/US20080049636A1/en not_active Abandoned
- 2007-06-21 KR KR20070061145A patent/KR100880971B1/ko not_active Expired - Fee Related
- 2007-06-22 CN CN2007101280531A patent/CN101132208B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010111273A (ko) * | 2000-01-14 | 2001-12-17 | 마츠시타 덴끼 산교 가부시키가이샤 | Sir 측정 장치, 이동국 장치, 기지국 장치 및 sir 측정 방법 |
KR20040037090A (ko) * | 2002-04-19 | 2004-05-04 | 마츠시타 덴끼 산교 가부시키가이샤 | Sir 측정 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
JP2008053906A (ja) | 2008-03-06 |
CN101132208A (zh) | 2008-02-27 |
CN101132208B (zh) | 2011-01-12 |
US20080049636A1 (en) | 2008-02-28 |
EP1892860A2 (en) | 2008-02-27 |
KR20080018092A (ko) | 2008-02-27 |
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