DE69918971D1 - Spreizspektrumsende-/empfangsgerät mit mehrwegstörverringerung in einem drahtlosen lokalen netz - Google Patents
Spreizspektrumsende-/empfangsgerät mit mehrwegstörverringerung in einem drahtlosen lokalen netzInfo
- Publication number
- DE69918971D1 DE69918971D1 DE69918971T DE69918971T DE69918971D1 DE 69918971 D1 DE69918971 D1 DE 69918971D1 DE 69918971 T DE69918971 T DE 69918971T DE 69918971 T DE69918971 T DE 69918971T DE 69918971 D1 DE69918971 D1 DE 69918971D1
- Authority
- DE
- Germany
- Prior art keywords
- spect
- spreading
- transmitter
- receiver
- wireless local
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
-
- 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
-
- 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
- H04B7/0802—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 antenna selection
- H04B7/0805—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 antenna selection with single receiver and antenna switching
- H04B7/0808—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 antenna selection with single receiver and antenna switching comparing all antennas before reception
- H04B7/0811—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 antenna selection with single receiver and antenna switching comparing all antennas before reception during preamble or gap period
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
- H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
- H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03248—Arrangements for operating in conjunction with other apparatus
- H04L25/03254—Operation with other circuitry for removing intersymbol interference
- H04L25/03267—Operation with other circuitry for removing intersymbol interference with decision feedback equalisers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
-
- 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
- H04B1/709—Correlator structure
-
- 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
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03401—PSK
-
- 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
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03439—Fixed structures
- H04L2025/03445—Time domain
- H04L2025/03471—Tapped delay lines
- H04L2025/03484—Tapped delay lines time-recursive
- H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7165998P | 1998-01-16 | 1998-01-16 | |
PCT/US1999/000852 WO1999046887A2 (en) | 1998-01-16 | 1999-01-15 | Wireless local area network spread spectrum transceiver with multipath interference mitigation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE69918971D1 true DE69918971D1 (de) | 2004-09-02 |
Family
ID=22102761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69918971T Expired - Lifetime DE69918971D1 (de) | 1998-01-16 | 1999-01-15 | Spreizspektrumsende-/empfangsgerät mit mehrwegstörverringerung in einem drahtlosen lokalen netz |
Country Status (7)
Country | Link |
---|---|
US (2) | US6678310B1 (de) |
EP (2) | EP1066691A2 (de) |
JP (2) | JP2003520456A (de) |
KR (2) | KR20010040342A (de) |
AU (2) | AU2457099A (de) |
DE (1) | DE69918971D1 (de) |
WO (2) | WO1999046863A2 (de) |
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KR20220034541A (ko) | 2020-09-11 | 2022-03-18 | 삼성전자주식회사 | 오류 검출에 기초한 채널 등화를 위한 장치 및 방법 |
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-
1999
- 1999-01-14 US US09/231,184 patent/US6678310B1/en not_active Expired - Lifetime
- 1999-01-14 US US09/231,608 patent/US6563858B1/en not_active Expired - Lifetime
- 1999-01-15 AU AU24570/99A patent/AU2457099A/en not_active Abandoned
- 1999-01-15 EP EP99904096A patent/EP1066691A2/de not_active Withdrawn
- 1999-01-15 DE DE69918971T patent/DE69918971D1/de not_active Expired - Lifetime
- 1999-01-15 KR KR1020007007842A patent/KR20010040342A/ko not_active Application Discontinuation
- 1999-01-15 WO PCT/US1999/000851 patent/WO1999046863A2/en not_active Application Discontinuation
- 1999-01-15 EP EP99904097A patent/EP1072105B1/de not_active Expired - Lifetime
- 1999-01-15 WO PCT/US1999/000852 patent/WO1999046887A2/en not_active Application Discontinuation
- 1999-01-15 JP JP2000536140A patent/JP2003520456A/ja active Pending
- 1999-01-15 KR KR1020007007841A patent/KR20010040341A/ko not_active Application Discontinuation
- 1999-01-15 AU AU24569/99A patent/AU2456999A/en not_active Abandoned
- 1999-01-15 JP JP2000536160A patent/JP2003520457A/ja active Pending
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WO1999046863A2 (en) | 1999-09-16 |
AU2457099A (en) | 1999-09-27 |
KR20010040341A (ko) | 2001-05-15 |
JP2003520457A (ja) | 2003-07-02 |
US6563858B1 (en) | 2003-05-13 |
WO1999046863A3 (en) | 2000-03-23 |
EP1066691A2 (de) | 2001-01-10 |
AU2456999A (en) | 1999-09-27 |
WO1999046887A3 (en) | 1999-10-21 |
JP2003520456A (ja) | 2003-07-02 |
WO1999046887A2 (en) | 1999-09-16 |
US6678310B1 (en) | 2004-01-13 |
EP1072105A2 (de) | 2001-01-31 |
EP1072105B1 (de) | 2004-07-28 |
KR20010040342A (ko) | 2001-05-15 |
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