CA2392668A1 - Biased phase-sweep transmit diversity - Google Patents
Biased phase-sweep transmit diversity Download PDFInfo
- Publication number
- CA2392668A1 CA2392668A1 CA 2392668 CA2392668A CA2392668A1 CA 2392668 A1 CA2392668 A1 CA 2392668A1 CA 2392668 CA2392668 CA 2392668 CA 2392668 A CA2392668 A CA 2392668A CA 2392668 A1 CA2392668 A1 CA 2392668A1
- Authority
- CA
- Canada
- Prior art keywords
- pstd
- transmit diversity
- awgn
- biased
- conditions
- 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.)
- Granted
Links
Landscapes
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Disclosed is a method and apparatus of transmit diversity that is backward compatible and does not significantly degrade performance in additi ve white guassan noise (AWGN) conditions using a transmission architecture that incorporates a form of phase sweep transmit diversity (PSTD) referred to herein as biased PSTD. Biased PSTD involves transmitting a signal and a frequency swep t version of the same signal over diversity antennas at different power levels . By transmitting the two signals at different power levels, the depths of nulls normally seen in AWGN conditions when PSTD is utilized is reduced and performance degradation in AWGN conditions is mitigated.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/918,393 | 2001-07-30 | ||
US09/918,393 US7035599B2 (en) | 2001-07-30 | 2001-07-30 | Biased phase sweep transmit diversity |
US09/918,086 | 2001-07-30 | ||
US09/918,086 US6980778B2 (en) | 2001-07-30 | 2001-07-30 | Split shift phase sweep transmit diversity |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2392668A1 true CA2392668A1 (en) | 2003-01-30 |
CA2392668C CA2392668C (en) | 2007-02-20 |
Family
ID=27129742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2392668 Expired - Fee Related CA2392668C (en) | 2001-07-30 | 2002-07-05 | Biased phase-sweep transmit diversity |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2003060565A (en) |
CA (1) | CA2392668C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101043497A (en) * | 2006-03-20 | 2007-09-26 | 松下电器产业株式会社 | Single carrier transmitting and receiving method and equipment and communication system |
US9450659B2 (en) * | 2011-11-04 | 2016-09-20 | Alcatel Lucent | Method and apparatus to generate virtual sector wide static beams using phase shift transmit diversity |
-
2002
- 2002-07-05 CA CA 2392668 patent/CA2392668C/en not_active Expired - Fee Related
- 2002-07-22 JP JP2002212723A patent/JP2003060565A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2003060565A (en) | 2003-02-28 |
CA2392668C (en) | 2007-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |