KR100999239B1 - 엘에스 코드를 이용한 시분할 다중화 방식의 mimo 채널측정 방법 및 장치 - Google Patents
엘에스 코드를 이용한 시분할 다중화 방식의 mimo 채널측정 방법 및 장치 Download PDFInfo
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- KR100999239B1 KR100999239B1 KR1020070111721A KR20070111721A KR100999239B1 KR 100999239 B1 KR100999239 B1 KR 100999239B1 KR 1020070111721 A KR1020070111721 A KR 1020070111721A KR 20070111721 A KR20070111721 A KR 20070111721A KR 100999239 B1 KR100999239 B1 KR 100999239B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- 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
- H04B7/0413—MIMO systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims (12)
- [-n, n]의 무간섭 구간(IFW)을 갖는 하나의 LS 코드 쌍(c1(t) 및 c2(t))를 생성하는 제1 단계;2N(N은 2이상의 정수)개의 송신 안테나가 두 개의 안테나씩 순차적으로, 상기 LS 코드 쌍(c1(t) 및 c2(t))을 채널을 통해 전송하는 - 이때, 상기 채널의 최대 지연은 IFW/2 보다 작은- 제2 단계;수신단이 상기 채널을 통해 전송된 LS 코드 쌍(c1(t) 및 c2(t))을 수신하는 제3 단계; 및수신된 LS 코드 쌍(c1(t) 및 c2(t))과 송신단에서 생성한 LS 코드와 동일한 LS 코드를 저장하고 있는 저장부에 저장된 LS 코드의 자기 상관 및 상호 상관을 이용하여 상기 채널을 측정하는 제4 단계를 포함하는 MIMO 채널 측정 방법.
- 제 1 항에 있어서,상기 저장부에 저장된 LS 코드는,상기 제1 단계에서 생성하는 LS 코드 쌍(c1(t) 및 c2(t))과 동일한 것을 특징으로 하는 MIMO 채널 측정 방법.
- [-n, n]의 무간섭 구간(IFW)을 갖는 첫 번째 LS 코드 쌍(c1(t) 및 c2(t)) 및 [-n, n]의 무간섭 구간(IFW)을 갖는 두 번째 LS 코드 쌍(c3(t) 및 c4(t))을 생성하는 제1 단계;4N(N은 2이상의 정수)개의 송신 안테나가 네 개의 안테나씩 순차적으로, 상기 첫 번째 LS 코드 쌍(c1(t) 및 c2(t)) 및 두 번째 LS 코드 쌍(c3(t) 및 c4(t))을 채널을 통해 전송하는 - 이때, 상기 채널의 최대 지연은 IFW/4 보다 작은- 제2 단계;수신단이 상기 채널을 통해 전송된 첫 번째 LS 코드 쌍 및 두 번째 LS 코드 쌍을 수신하는 제3 단계; 및수신된 첫 번째 LS 코드 쌍 및 두 번째 LS 코드 쌍과 송신단에서 생성한 LS 코드와 동일한 LS 코드를 저장하고 있는 저장부에 저장된 LS 코드의 자기 상관 및 상호 상관을 이용하여 상기 채널을 측정하는 제4 단계를 포함하는 MIMO 채널 측정 방법.
- 제 3 항에 있어서,상기 저장부에 저장된 LS 코드는,상기 제1 단계에서 생성하는 첫 번째 LS 코드 쌍 및 두 번째 LS 코드 쌍과 동일한 것을 특징으로 하는 MIMO 채널 측정 방법.
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/KR2008/004610 WO2009022815A2 (en) | 2007-08-14 | 2008-08-08 | Method for estimating mimo channel using loosely synchronous codes, and apparatus using the same |
US12/672,741 US20120020432A1 (en) | 2007-08-14 | 2008-08-08 | Method for estimating mimo channel using loosely synchronous codes, and apparatus using the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070081641 | 2007-08-14 | ||
KR20070081641 | 2007-08-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090017376A KR20090017376A (ko) | 2009-02-18 |
KR100999239B1 true KR100999239B1 (ko) | 2010-12-07 |
Family
ID=40686208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070111721A Expired - Fee Related KR100999239B1 (ko) | 2007-08-14 | 2007-11-02 | 엘에스 코드를 이용한 시분할 다중화 방식의 mimo 채널측정 방법 및 장치 |
Country Status (2)
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US (1) | US20120020432A1 (ko) |
KR (1) | KR100999239B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2991296B1 (en) * | 2013-06-27 | 2017-05-03 | Huawei Technologies Co., Ltd. | Channel estimation method and receiver |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100630358B1 (ko) * | 2005-12-10 | 2006-10-02 | 한국전자통신연구원 | Mimo 채널 측정의 정확도를 높이는 방법 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030067964A1 (en) * | 2000-02-10 | 2003-04-10 | Daoben Li | Code-division-multiple-access system using zero correlation window |
US20020064212A1 (en) * | 2001-02-21 | 2002-05-30 | Daoben Li | Code-division-multiple-access receiver with zero correlation window |
US20020057727A1 (en) * | 2001-02-21 | 2002-05-16 | Daoben Li | Code-division-multiple-access transmitter with zero correlation window |
CN1210987C (zh) * | 2000-06-05 | 2005-07-13 | 连宇通信有限公司 | 具有无干扰窗口的蜂窝系统中的小区选择方法 |
EP1299960B1 (en) * | 2000-06-05 | 2005-06-01 | LinkAir Communications, Inc. | A reverse synchronization method in a wireless system |
CN1142636C (zh) * | 2000-06-26 | 2004-03-17 | 连宇通信有限公司 | 一种正交扩频多址码组的构造方法 |
CN1146163C (zh) * | 2000-10-20 | 2004-04-14 | 华为技术有限公司 | 提高td-cdma系统信道估计准确度的方法 |
US20050276311A1 (en) * | 2002-06-25 | 2005-12-15 | Koninklijke Philips Electronics N.V. | Mt-cdma using spreading codes with interference-free windows |
US7929563B2 (en) * | 2005-01-20 | 2011-04-19 | New Jersey Institute Of Technology | System and/or method for channel estimation in communication systems |
-
2007
- 2007-11-02 KR KR1020070111721A patent/KR100999239B1/ko not_active Expired - Fee Related
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2008
- 2008-08-08 US US12/672,741 patent/US20120020432A1/en not_active Abandoned
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100630358B1 (ko) * | 2005-12-10 | 2006-10-02 | 한국전자통신연구원 | Mimo 채널 측정의 정확도를 높이는 방법 |
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Publication number | Publication date |
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KR20090017376A (ko) | 2009-02-18 |
US20120020432A1 (en) | 2012-01-26 |
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