CA2392668A1 - Biased phase-sweep transmit diversity - Google Patents

Biased phase-sweep transmit diversity Download PDF

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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
Application number
CA 2392668
Other languages
French (fr)
Other versions
CA2392668C (en
Inventor
Roger David Benning
R. Michael Buehrer
Robert Atmaram Soni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia of America Corp
Original Assignee
Lucent Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/918,393 external-priority patent/US7035599B2/en
Priority claimed from US09/918,086 external-priority patent/US6980778B2/en
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of CA2392668A1 publication Critical patent/CA2392668A1/en
Application granted granted Critical
Publication of CA2392668C publication Critical patent/CA2392668C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • 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.
CA 2392668 2001-07-30 2002-07-05 Biased phase-sweep transmit diversity Expired - Fee Related CA2392668C (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JP2003060565A (en) 2003-02-28
CA2392668C (en) 2007-02-20

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