WO2008106061A3 - Method, system and apparatus for phase control of transmit diversity signals - Google Patents

Method, system and apparatus for phase control of transmit diversity signals Download PDF

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Publication number
WO2008106061A3
WO2008106061A3 PCT/US2008/002403 US2008002403W WO2008106061A3 WO 2008106061 A3 WO2008106061 A3 WO 2008106061A3 US 2008002403 W US2008002403 W US 2008002403W WO 2008106061 A3 WO2008106061 A3 WO 2008106061A3
Authority
WO
WIPO (PCT)
Prior art keywords
relative
transmit diversity
phase control
signal
diversity signals
Prior art date
Application number
PCT/US2008/002403
Other languages
French (fr)
Other versions
WO2008106061A2 (en
Inventor
Wai Hon Lo
Dilek Barlas
Haim Harel
Kenneth Kludt
Yair Karmi
Original Assignee
Magnolia Broadband Inc
Wai Hon Lo
Dilek Barlas
Haim Harel
Kenneth Kludt
Yair Karmi
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
Application filed by Magnolia Broadband Inc, Wai Hon Lo, Dilek Barlas, Haim Harel, Kenneth Kludt, Yair Karmi filed Critical Magnolia Broadband Inc
Publication of WO2008106061A2 publication Critical patent/WO2008106061A2/en
Publication of WO2008106061A3 publication Critical patent/WO2008106061A3/en

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Classifications

    • 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
    • H04B7/0682—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 using phase diversity (e.g. phase sweeping)

Abstract

Embodiments of the present invention include a method and apparatus for modifying a transmit diversity signal by control of at least a relative parameter, for example, phase difference, in a first signal relative to at least one second signal using various switching modules or techniques. In some embodiments of the invention, the relative difference may be controlled by switching paths, or producing various degrees of relative difference by switching, activating or controlling multiple elements with various resolutions of the relative parameter, or by connecting elements by timing of switches.
PCT/US2008/002403 2007-02-28 2008-02-25 Method, system and apparatus for phase control of transmit diversity signals WO2008106061A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/711,643 2007-02-28
US11/711,643 US7869535B2 (en) 2007-02-28 2007-02-28 Method, system and apparatus for phase control of transmit diversity signals

Publications (2)

Publication Number Publication Date
WO2008106061A2 WO2008106061A2 (en) 2008-09-04
WO2008106061A3 true WO2008106061A3 (en) 2008-11-06

Family

ID=39715887

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/002403 WO2008106061A2 (en) 2007-02-28 2008-02-25 Method, system and apparatus for phase control of transmit diversity signals

Country Status (2)

Country Link
US (1) US7869535B2 (en)
WO (1) WO2008106061A2 (en)

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CN103107868A (en) * 2011-11-15 2013-05-15 中兴通讯股份有限公司 Controlling method and device for activated state of uplink transmit diversity
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US9425860B2 (en) * 2013-07-19 2016-08-23 Biosense Webster (Israel), Ltd. Two wire signal transmission
US10320401B2 (en) * 2017-10-13 2019-06-11 Xilinx, Inc. Dual-path digital-to-time converter
US11296410B2 (en) * 2018-11-15 2022-04-05 Skyworks Solutions, Inc. Phase shifters for communication systems
US11223362B2 (en) * 2020-05-14 2022-01-11 Mediatek Inc. Phase-locked loop circuit and digital-to-time convertor error cancelation method thereof
US11777208B2 (en) * 2021-05-21 2023-10-03 GlaiveRF, Inc. E-fuse switched-delay path phased array

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US5812687A (en) * 1994-02-25 1998-09-22 St Microelectronics Srl Circuit for controlling the frequency and/or phase response of a signal amplification system
US20030222691A1 (en) * 2001-12-14 2003-12-04 Philippe Dueme Broadband phase-shifter

Also Published As

Publication number Publication date
US20080205551A1 (en) 2008-08-28
US7869535B2 (en) 2011-01-11
WO2008106061A2 (en) 2008-09-04

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