DE69934951D1 - Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA - Google Patents
Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMAInfo
- Publication number
- DE69934951D1 DE69934951D1 DE69934951T DE69934951T DE69934951D1 DE 69934951 D1 DE69934951 D1 DE 69934951D1 DE 69934951 T DE69934951 T DE 69934951T DE 69934951 T DE69934951 T DE 69934951T DE 69934951 D1 DE69934951 D1 DE 69934951D1
- Authority
- DE
- Germany
- Prior art keywords
- wcdma
- space
- channel estimation
- transmit antenna
- time block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
-
- 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
-
- 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
- H04B7/0667—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 delayed versions of same signal
- H04B7/0669—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 delayed versions of same signal using different channel coding between antennas
-
- 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
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
- H04L1/0618—Space-time coding
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10344098P | 1998-10-07 | 1998-10-07 | |
US103440 | 1998-10-07 | ||
US19689698A | 1998-11-19 | 1998-11-19 | |
US196896 | 1998-11-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69934951D1 true DE69934951D1 (de) | 2007-03-15 |
DE69934951T2 DE69934951T2 (de) | 2007-10-25 |
Family
ID=26800464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69934951T Expired - Lifetime DE69934951T2 (de) | 1998-10-07 | 1999-10-07 | Kanalschätzung in Raum-Zeit blockkodierter Sendeantennendiversität für WCDMA |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0993129B1 (de) |
JP (1) | JP2000201102A (de) |
KR (1) | KR100773199B1 (de) |
DE (1) | DE69934951T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6853689B1 (en) | 1999-07-15 | 2005-02-08 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for channel estimation with transmit diversity |
US6317410B1 (en) * | 1999-09-13 | 2001-11-13 | Lucent Technologies Inc. | Receiver architecture employing space time spreading and orthogonal transmit diversity techniques |
JP2001168777A (ja) * | 1999-12-06 | 2001-06-22 | Matsushita Electric Ind Co Ltd | 通信端末装置及び無線通信方法 |
EP1720277B1 (de) * | 2000-07-05 | 2017-09-27 | Sony Deutschland Gmbh | Pilotmusterentwurf für mehrere Antennen in einem OFDM-System |
US7154958B2 (en) | 2000-07-05 | 2006-12-26 | Texas Instruments Incorporated | Code division multiple access wireless system with time reversed space time block transmitter diversity |
DE10040447A1 (de) * | 2000-08-18 | 2002-02-28 | Siemens Ag | Verfahren zur Kanalschätzung in einem Funksystem, insbesondere einem Mobilfunksystem |
JP3607605B2 (ja) * | 2000-12-04 | 2005-01-05 | 埼玉日本電気株式会社 | Wcdma無線基地局 |
US20020110108A1 (en) * | 2000-12-07 | 2002-08-15 | Younglok Kim | Simple block space time transmit diversity using multiple spreading codes |
US7095731B2 (en) * | 2000-12-13 | 2006-08-22 | Interdigital Technology Corporation | Modified block space time transmit diversity encoder |
EP1650892A1 (de) * | 2000-12-13 | 2006-04-26 | Interdigital Technology Corporation | Modifizierter Raum-Zeit Block-Sendediversitätsdekodierer |
KR100698199B1 (ko) * | 2001-06-05 | 2007-03-22 | 엘지전자 주식회사 | 전송 안테나 다이버시티 방법 |
US7149258B2 (en) | 2001-11-28 | 2006-12-12 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for estimation of phase offset between communication channels |
US7085332B2 (en) | 2001-12-14 | 2006-08-01 | Ericsson, Inc. | Method and apparatus for two-user joint demodulation in a system having transmit diversity |
US6765952B2 (en) * | 2002-05-06 | 2004-07-20 | Qualcomm Incorporated | Transmit diversity pilot processing |
US7508798B2 (en) * | 2002-12-16 | 2009-03-24 | Nortel Networks Limited | Virtual mimo communication system |
US9118515B2 (en) | 2014-01-08 | 2015-08-25 | Freescale Semiconductor, Inc. | Channel estimation in wireless communication |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5648983A (en) * | 1995-04-24 | 1997-07-15 | Lucent Technologies Inc. | CDMA rake receiver with sub-chip resolution |
CA2186793C (en) * | 1995-11-13 | 2000-12-19 | Vijitha Weerackody | Method and apparatus to implement antenna diversity for direct sequence spread spectrum receivers |
-
1999
- 1999-10-07 JP JP11323090A patent/JP2000201102A/ja active Pending
- 1999-10-07 DE DE69934951T patent/DE69934951T2/de not_active Expired - Lifetime
- 1999-10-07 KR KR1019990043272A patent/KR100773199B1/ko active IP Right Grant
- 1999-10-07 EP EP99203291A patent/EP0993129B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69934951T2 (de) | 2007-10-25 |
JP2000201102A (ja) | 2000-07-18 |
EP0993129B1 (de) | 2007-01-24 |
EP0993129A3 (de) | 2003-05-02 |
KR20000028903A (ko) | 2000-05-25 |
KR100773199B1 (ko) | 2007-11-02 |
EP0993129A2 (de) | 2000-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |