TW200731773A - Method of channel estimating for memory and calculation saving - Google Patents
Method of channel estimating for memory and calculation savingInfo
- Publication number
- TW200731773A TW200731773A TW095104406A TW95104406A TW200731773A TW 200731773 A TW200731773 A TW 200731773A TW 095104406 A TW095104406 A TW 095104406A TW 95104406 A TW95104406 A TW 95104406A TW 200731773 A TW200731773 A TW 200731773A
- Authority
- TW
- Taiwan
- Prior art keywords
- memory
- ofdm symbols
- channel responses
- channel estimating
- channel
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- 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
- H04L25/022—Channel estimation of frequency response
-
- 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
-
- 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
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095104406A TWI376145B (en) | 2006-02-09 | 2006-02-09 | Method of channel estimating for memory and calculation saving |
US11/700,826 US7929622B2 (en) | 2006-02-09 | 2007-02-01 | Method of channel estimation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW095104406A TWI376145B (en) | 2006-02-09 | 2006-02-09 | Method of channel estimating for memory and calculation saving |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200731773A true TW200731773A (en) | 2007-08-16 |
TWI376145B TWI376145B (en) | 2012-11-01 |
Family
ID=38334055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095104406A TWI376145B (en) | 2006-02-09 | 2006-02-09 | Method of channel estimating for memory and calculation saving |
Country Status (2)
Country | Link |
---|---|
US (1) | US7929622B2 (zh) |
TW (1) | TWI376145B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103053123A (zh) * | 2010-08-10 | 2013-04-17 | 马维尔国际贸易有限公司 | 通信系统中的信道描述反馈 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2083541A3 (en) * | 2008-01-28 | 2013-07-10 | Core Logic, Inc. | Apparatus and method for estimating the channel in orthogonal frequency division multiplexing communication systems |
TWI353756B (en) * | 2008-03-11 | 2011-12-01 | Univ Nat Chiao Tung | Method for ofdm and ofdma channel estimation |
US8467465B2 (en) * | 2009-08-07 | 2013-06-18 | Qualcomm Incorporated | Channel estimation using replicas zero forcing |
EP2790363A1 (en) * | 2012-09-17 | 2014-10-15 | ST-Ericsson SA | A new interpolation algorithm for pilot-based channel estimation in OFDM systems |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5809083A (en) * | 1994-11-23 | 1998-09-15 | At&T Wireless Services, Inc. | Differentially encoded pilot word system and method for wireless transmissions of digital data |
US6519300B1 (en) * | 1998-11-12 | 2003-02-11 | Ericsson Inc. | System and method for automatic frequency correction in a pilot symbol assisted demodulator |
US6442129B1 (en) | 1999-12-06 | 2002-08-27 | Intellon Corporation | Enhanced channel estimation |
US6952454B1 (en) * | 2000-03-22 | 2005-10-04 | Qualcomm, Incorporated | Multiplexing of real time services and non-real time services for OFDM systems |
US7248559B2 (en) * | 2001-10-17 | 2007-07-24 | Nortel Networks Limited | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
CN1221096C (zh) | 2003-03-08 | 2005-09-28 | 华中科技大学 | 正交频分复用通信系统中的信道估计方法 |
US7342974B2 (en) | 2003-03-20 | 2008-03-11 | Silicon Integrated Systems Corp. | Channel estimation in OFDM systems |
US8116262B2 (en) * | 2004-06-22 | 2012-02-14 | Rockstar Bidco Lp | Methods and systems for enabling feedback in wireless communication networks |
JP4181093B2 (ja) * | 2004-07-16 | 2008-11-12 | 株式会社東芝 | 無線通信システム |
US8111763B2 (en) * | 2005-03-30 | 2012-02-07 | Rockstar Bidco, LP | Methods and systems for OFDM using code division multiplexing |
US7660229B2 (en) * | 2005-06-20 | 2010-02-09 | Texas Instruments Incorporated | Pilot design and channel estimation |
-
2006
- 2006-02-09 TW TW095104406A patent/TWI376145B/zh not_active IP Right Cessation
-
2007
- 2007-02-01 US US11/700,826 patent/US7929622B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103053123A (zh) * | 2010-08-10 | 2013-04-17 | 马维尔国际贸易有限公司 | 通信系统中的信道描述反馈 |
CN103053123B (zh) * | 2010-08-10 | 2016-06-01 | 马维尔国际贸易有限公司 | 通信系统中的信道描述反馈 |
Also Published As
Publication number | Publication date |
---|---|
TWI376145B (en) | 2012-11-01 |
US20070183521A1 (en) | 2007-08-09 |
US7929622B2 (en) | 2011-04-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Annulment or lapse of patent due to non-payment of fees |