ATE367024T1 - Vorentzerrung eines mehrträger-cdma-systems über zeitvariante übertragungskanäle - Google Patents
Vorentzerrung eines mehrträger-cdma-systems über zeitvariante übertragungskanäleInfo
- Publication number
- ATE367024T1 ATE367024T1 AT03290844T AT03290844T ATE367024T1 AT E367024 T1 ATE367024 T1 AT E367024T1 AT 03290844 T AT03290844 T AT 03290844T AT 03290844 T AT03290844 T AT 03290844T AT E367024 T1 ATE367024 T1 AT E367024T1
- Authority
- AT
- Austria
- Prior art keywords
- equalization
- cdma system
- carrier cdma
- system via
- transmission channels
- 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
- H04L5/02—Channels characterised by the type of signal
- H04L5/023—Multiplexing of multicarrier modulation signals
- H04L5/026—Multiplexing of multicarrier modulation signals using code division
-
- 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
- H04L25/03343—Arrangements at the transmitter end
-
- 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
- H04B1/692—Hybrid techniques using combinations of two or more spread spectrum techniques
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03290844A EP1465364B1 (de) | 2003-04-04 | 2003-04-04 | Vorentzerrung eines Mehrträger-CDMA-Systems über zeitvariante übertragungskanäle |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE367024T1 true ATE367024T1 (de) | 2007-08-15 |
Family
ID=32842877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT03290844T ATE367024T1 (de) | 2003-04-04 | 2003-04-04 | Vorentzerrung eines mehrträger-cdma-systems über zeitvariante übertragungskanäle |
Country Status (6)
Country | Link |
---|---|
US (1) | US8290018B2 (de) |
EP (1) | EP1465364B1 (de) |
JP (1) | JP4477926B2 (de) |
CN (1) | CN1312861C (de) |
AT (1) | ATE367024T1 (de) |
DE (1) | DE60314838T2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107994964B (zh) * | 2017-11-30 | 2020-09-08 | 广州海格通信集团股份有限公司 | 信道干扰的感知方法、***、设备、存储介质和基站 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5862192A (en) * | 1991-12-31 | 1999-01-19 | Lucent Technologies Inc. | Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity |
US6128276A (en) * | 1997-02-24 | 2000-10-03 | Radix Wireless, Inc. | Stacked-carrier discrete multiple tone communication technology and combinations with code nulling, interference cancellation, retrodirective communication and adaptive antenna arrays |
US6389084B1 (en) * | 1998-08-07 | 2002-05-14 | Lucent Technologies Inc. | Apparatus and method for equalizing a signal independent of the impact of doppler frequency |
US6259730B1 (en) * | 1998-11-10 | 2001-07-10 | Lucent Technologies, Inc. | Transmit diversity and reception equalization for radio links |
US6542562B1 (en) * | 1999-02-09 | 2003-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Approximated MMSE-based channel estimator in a mobile communication system |
US6680969B1 (en) * | 1999-03-22 | 2004-01-20 | Ericsson, Inc. | Methods for estimating doppler spreads including autocorrelation function hypotheses and related systems and receivers |
US6563861B1 (en) * | 1999-03-22 | 2003-05-13 | Ericsson, Inc. | Doppler spread estimation system |
US6363102B1 (en) * | 1999-04-23 | 2002-03-26 | Qualcomm Incorporated | Method and apparatus for frequency offset correction |
WO2001017129A1 (en) * | 1999-08-31 | 2001-03-08 | Qualcomm Incorporated | Apparatus for doppler correction in a wireless communications system |
US6850505B1 (en) * | 1999-09-01 | 2005-02-01 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for Doppler frequency estimation |
US6785351B1 (en) * | 2000-08-16 | 2004-08-31 | Lucent Technologies Inc. | Method and system for Doppler frequency estimation |
US6654408B1 (en) * | 2000-10-27 | 2003-11-25 | Wisconsin Alumni Research Foundation | Method and system for multi-carrier multiple access reception in the presence of imperfections |
US20020191568A1 (en) * | 2001-03-29 | 2002-12-19 | Koninklijke Philips Electronics N.V. | Adaptive chip equalizers for synchronous DS-CDMA systems with pilot sequences |
FR2823623B1 (fr) * | 2001-04-13 | 2003-11-28 | Inst Nat Sciences Appliq | Procede de transmission bidirectionnelle de signaux multiporteuses, systeme terminal de communication et signal correspondants |
US7035315B2 (en) * | 2001-04-24 | 2006-04-25 | Lucent Technologies Inc. | Doppler corrected communications receiver and method of removing doppler frequency shift |
WO2003017558A2 (en) * | 2001-08-21 | 2003-02-27 | Morphics Technology, Inc. | Method and apparatus for enhancing data rates in spread spectrum communication systems |
CN1156179C (zh) * | 2001-09-03 | 2004-06-30 | ***电信传输研究所 | 一种信道估计平均区间的动态调整方法和装置 |
US6983125B2 (en) * | 2001-09-25 | 2006-01-03 | Qualcomm Incorporated | Method and apparatus for varying the length of an adaptive equalizer based on doppler frequency |
US7308232B2 (en) * | 2002-06-21 | 2007-12-11 | Lucent Technologies Inc. | Method and apparatus for estimating a channel based on channel statistics |
US7286593B1 (en) * | 2002-07-15 | 2007-10-23 | National Semiconductor Corporation | System and method for channel estimation in a radio frequency receiver |
JP3847289B2 (ja) * | 2003-11-10 | 2006-11-22 | 株式会社半導体理工学研究センター | パルスベース通信システム |
-
2003
- 2003-04-04 DE DE60314838T patent/DE60314838T2/de not_active Expired - Lifetime
- 2003-04-04 EP EP03290844A patent/EP1465364B1/de not_active Expired - Lifetime
- 2003-04-04 AT AT03290844T patent/ATE367024T1/de not_active IP Right Cessation
-
2004
- 2004-04-02 US US10/815,724 patent/US8290018B2/en not_active Expired - Fee Related
- 2004-04-02 JP JP2004110475A patent/JP4477926B2/ja not_active Expired - Fee Related
- 2004-04-02 CN CNB2004100323409A patent/CN1312861C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1465364A1 (de) | 2004-10-06 |
US8290018B2 (en) | 2012-10-16 |
DE60314838D1 (de) | 2007-08-23 |
US20050009544A1 (en) | 2005-01-13 |
CN1536783A (zh) | 2004-10-13 |
JP2004343719A (ja) | 2004-12-02 |
EP1465364B1 (de) | 2007-07-11 |
DE60314838T2 (de) | 2007-10-25 |
JP4477926B2 (ja) | 2010-06-09 |
CN1312861C (zh) | 2007-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |