HK1055180A1 - Method and apparatus for demodulating signals processed in a transmit diversity mode - Google Patents
Method and apparatus for demodulating signals processed in a transmit diversity modeInfo
- Publication number
- HK1055180A1 HK1055180A1 HK03107435A HK03107435A HK1055180A1 HK 1055180 A1 HK1055180 A1 HK 1055180A1 HK 03107435 A HK03107435 A HK 03107435A HK 03107435 A HK03107435 A HK 03107435A HK 1055180 A1 HK1055180 A1 HK 1055180A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- symbols
- correlator
- assigned
- correlators
- decovered
- Prior art date
Links
Classifications
-
- 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
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
-
- 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
- H04B1/708—Parallel implementation
-
- 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
-
- 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
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/594,466 US6628702B1 (en) | 2000-06-14 | 2000-06-14 | Method and apparatus for demodulating signals processed in a transmit diversity mode |
PCT/US2001/019403 WO2001097400A2 (fr) | 2000-06-14 | 2001-06-14 | Procede et appareil de demodulation de signaux traites en mode diversite de transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1055180A1 true HK1055180A1 (en) | 2003-12-24 |
Family
ID=24378997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK03107435A HK1055180A1 (en) | 2000-06-14 | 2003-10-15 | Method and apparatus for demodulating signals processed in a transmit diversity mode |
Country Status (10)
Country | Link |
---|---|
US (4) | US6628702B1 (fr) |
EP (1) | EP1290807B1 (fr) |
JP (1) | JP5039887B2 (fr) |
KR (1) | KR100840453B1 (fr) |
CN (1) | CN1235345C (fr) |
AU (1) | AU2001269884A1 (fr) |
BR (1) | BR0111670A (fr) |
HK (1) | HK1055180A1 (fr) |
TW (1) | TW515148B (fr) |
WO (1) | WO2001097400A2 (fr) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6169789B1 (en) | 1996-12-16 | 2001-01-02 | Sanjay K. Rao | Intelligent keyboard system |
US7046653B2 (en) * | 1998-05-01 | 2006-05-16 | Jan Nigrin | Diversity communication system and method of operation thereof |
US6628702B1 (en) * | 2000-06-14 | 2003-09-30 | Qualcomm, Incorporated | Method and apparatus for demodulating signals processed in a transmit diversity mode |
US20020110108A1 (en) * | 2000-12-07 | 2002-08-15 | Younglok Kim | Simple block space time transmit diversity using multiple spreading codes |
US7010073B2 (en) * | 2001-01-19 | 2006-03-07 | Qualcomm, Incorporated | Delay lock loops for wireless communication systems |
US7085313B2 (en) * | 2001-02-17 | 2006-08-01 | Koninklijke Philips Electronics N.V. | Multiple channel joint decoding at mobile handset |
KR100391981B1 (ko) * | 2001-06-16 | 2003-07-22 | 삼성전자주식회사 | 복수의 안테나를 통해 전송된 신호에서 데이터를 재생하는장치 |
US20030026199A1 (en) * | 2001-08-03 | 2003-02-06 | Myers Michael H. | Code-division, minimum-shift-keying optical multiplexing |
US6765952B2 (en) | 2002-05-06 | 2004-07-20 | Qualcomm Incorporated | Transmit diversity pilot processing |
US7362799B1 (en) * | 2002-06-27 | 2008-04-22 | Arraycomm Llc | Method and apparatus for communication signal resolution |
US20040081131A1 (en) | 2002-10-25 | 2004-04-29 | Walton Jay Rod | OFDM communication system with multiple OFDM symbol sizes |
CN101166074A (zh) * | 2002-10-25 | 2008-04-23 | 高通股份有限公司 | Mimo wlan系统 |
US8208364B2 (en) | 2002-10-25 | 2012-06-26 | Qualcomm Incorporated | MIMO system with multiple spatial multiplexing modes |
US7986742B2 (en) * | 2002-10-25 | 2011-07-26 | Qualcomm Incorporated | Pilots for MIMO communication system |
US8169944B2 (en) | 2002-10-25 | 2012-05-01 | Qualcomm Incorporated | Random access for wireless multiple-access communication systems |
US8134976B2 (en) | 2002-10-25 | 2012-03-13 | Qualcomm Incorporated | Channel calibration for a time division duplexed communication system |
US8320301B2 (en) | 2002-10-25 | 2012-11-27 | Qualcomm Incorporated | MIMO WLAN system |
US7002900B2 (en) | 2002-10-25 | 2006-02-21 | Qualcomm Incorporated | Transmit diversity processing for a multi-antenna communication system |
CN101242214B (zh) * | 2002-10-25 | 2012-09-05 | 高通股份有限公司 | 无线多输入多输出通信系统内生成导频的方法 |
US7280467B2 (en) * | 2003-01-07 | 2007-10-09 | Qualcomm Incorporated | Pilot transmission schemes for wireless multi-carrier communication systems |
US7127013B2 (en) * | 2003-08-18 | 2006-10-24 | Airgo Networks, Inc. | Spacetime equalization in a wireless receiver |
US7751520B1 (en) * | 2003-09-17 | 2010-07-06 | Atheros Communications, Inc. | Packet detection, synchronization, and frequency offset estimation |
US9473269B2 (en) | 2003-12-01 | 2016-10-18 | Qualcomm Incorporated | Method and apparatus for providing an efficient control channel structure in a wireless communication system |
US8139685B2 (en) | 2005-05-10 | 2012-03-20 | Qualcomm Incorporated | Systems, methods, and apparatus for frequency control |
US7466749B2 (en) | 2005-05-12 | 2008-12-16 | Qualcomm Incorporated | Rate selection with margin sharing |
US7684508B1 (en) * | 2005-05-27 | 2010-03-23 | Mediatek Incorporation | Transmission diversity detecting apparatus capable of generating quality indicator and related method thereof |
US8416857B2 (en) * | 2007-03-29 | 2013-04-09 | James Au | Parallel or pipelined macroblock processing |
US8369411B2 (en) * | 2007-03-29 | 2013-02-05 | James Au | Intra-macroblock video processing |
US7953284B2 (en) * | 2007-03-29 | 2011-05-31 | James Au | Selective information handling for video processing |
US8837575B2 (en) * | 2007-03-29 | 2014-09-16 | Cisco Technology, Inc. | Video processing architecture |
US8422552B2 (en) * | 2007-03-29 | 2013-04-16 | James Au | Entropy coding for video processing applications |
JP4794583B2 (ja) * | 2008-01-29 | 2011-10-19 | 住友電気工業株式会社 | マルチアンテナ通信装置及び送信方法 |
US8335283B1 (en) * | 2008-11-11 | 2012-12-18 | Qualcomm Atheros, Inc. | Weak signal detection in wireless communication systems |
US8179774B2 (en) * | 2009-01-30 | 2012-05-15 | Lantiq Deutschland Gmbh | Cross-talk coefficient updating in vector transmission |
CN103209048B (zh) * | 2012-01-13 | 2017-04-12 | 华为技术有限公司 | 专用导频的解码方法和用户设备 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901307A (en) | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US5103459B1 (en) | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
ZA938324B (en) * | 1992-11-24 | 1994-06-07 | Qualcomm Inc | Pilot carrier dot product circuit |
US5490165A (en) * | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
JP2605615B2 (ja) * | 1993-12-30 | 1997-04-30 | 日本電気株式会社 | スペクトラム拡散受信機 |
US5710768A (en) | 1994-09-30 | 1998-01-20 | Qualcomm Incorporated | Method of searching for a bursty signal |
US5764687A (en) * | 1995-06-20 | 1998-06-09 | Qualcomm Incorporated | Mobile demodulator architecture for a spread spectrum multiple access communication system |
US6574211B2 (en) | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
US6748010B1 (en) * | 1998-10-13 | 2004-06-08 | Qualcomm Incorporated | Combined searching and page monitoring using offline sample storage |
US6229839B1 (en) * | 1999-02-08 | 2001-05-08 | Qualcomm Incorporated | Method and apparatus for time tracking |
US6515978B1 (en) * | 1999-04-19 | 2003-02-04 | Lucent Technologies Inc. | Methods and apparatus for downlink diversity in CDMA using Walsh codes |
US6414988B1 (en) * | 1999-05-12 | 2002-07-02 | Qualcomm Incorporated | Amplitude and phase estimation method in a wireless communication system |
US6594286B2 (en) * | 1999-08-12 | 2003-07-15 | Qualcomm Incorporated | Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal |
US6628702B1 (en) * | 2000-06-14 | 2003-09-30 | Qualcomm, Incorporated | Method and apparatus for demodulating signals processed in a transmit diversity mode |
-
2000
- 2000-06-14 US US09/594,466 patent/US6628702B1/en not_active Expired - Lifetime
-
2001
- 2001-06-14 BR BR0111670-3A patent/BR0111670A/pt not_active IP Right Cessation
- 2001-06-14 WO PCT/US2001/019403 patent/WO2001097400A2/fr active Application Filing
- 2001-06-14 CN CNB018110398A patent/CN1235345C/zh not_active Expired - Lifetime
- 2001-06-14 AU AU2001269884A patent/AU2001269884A1/en not_active Abandoned
- 2001-06-14 JP JP2002511487A patent/JP5039887B2/ja not_active Expired - Lifetime
- 2001-06-14 EP EP01948434.4A patent/EP1290807B1/fr not_active Expired - Lifetime
- 2001-06-14 TW TW090114425A patent/TW515148B/zh not_active IP Right Cessation
- 2001-06-14 KR KR1020027016649A patent/KR100840453B1/ko active IP Right Grant
-
2003
- 2003-08-28 US US10/651,446 patent/US7184463B2/en not_active Expired - Lifetime
- 2003-10-15 HK HK03107435A patent/HK1055180A1/xx not_active IP Right Cessation
-
2007
- 2007-01-17 US US11/624,194 patent/US7623566B2/en not_active Expired - Fee Related
- 2007-01-17 US US11/624,198 patent/US7684474B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7184463B2 (en) | 2007-02-27 |
EP1290807B1 (fr) | 2014-06-11 |
BR0111670A (pt) | 2003-10-07 |
US7684474B2 (en) | 2010-03-23 |
US20070116101A1 (en) | 2007-05-24 |
US6628702B1 (en) | 2003-09-30 |
US20040042536A1 (en) | 2004-03-04 |
TW515148B (en) | 2002-12-21 |
KR20030007901A (ko) | 2003-01-23 |
US7623566B2 (en) | 2009-11-24 |
KR100840453B1 (ko) | 2008-06-20 |
WO2001097400A3 (fr) | 2002-03-28 |
EP1290807A2 (fr) | 2003-03-12 |
US20070116102A1 (en) | 2007-05-24 |
AU2001269884A1 (en) | 2001-12-24 |
JP5039887B2 (ja) | 2012-10-03 |
JP2004503982A (ja) | 2004-02-05 |
CN1436407A (zh) | 2003-08-13 |
WO2001097400A2 (fr) | 2001-12-20 |
CN1235345C (zh) | 2006-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20110614 |