WO2006069321A3 - Transmit power reduction for a wireless device with multiple transmit signal paths - Google Patents

Transmit power reduction for a wireless device with multiple transmit signal paths Download PDF

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Publication number
WO2006069321A3
WO2006069321A3 PCT/US2005/046807 US2005046807W WO2006069321A3 WO 2006069321 A3 WO2006069321 A3 WO 2006069321A3 US 2005046807 W US2005046807 W US 2005046807W WO 2006069321 A3 WO2006069321 A3 WO 2006069321A3
Authority
WO
WIPO (PCT)
Prior art keywords
transmit signal
wireless device
signal path
transmit
base station
Prior art date
Application number
PCT/US2005/046807
Other languages
French (fr)
Other versions
WO2006069321A2 (en
Inventor
Kenneth Charles Barnett
Charles J Persico
Paul Peterzell
Original Assignee
Qualcomm Inc
Kenneth Charles Barnett
Charles J Persico
Paul Peterzell
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 Qualcomm Inc, Kenneth Charles Barnett, Charles J Persico, Paul Peterzell filed Critical Qualcomm Inc
Priority to JP2007548531A priority Critical patent/JP4653179B2/en
Priority to EP05855378A priority patent/EP1829246A2/en
Priority to CA002590659A priority patent/CA2590659A1/en
Publication of WO2006069321A2 publication Critical patent/WO2006069321A2/en
Publication of WO2006069321A3 publication Critical patent/WO2006069321A3/en

Links

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
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • 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
    • H04B7/0602—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 antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • 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
    • H04B7/0615—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 of weighted versions of same signal
    • H04B7/0619—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 of weighted versions of same signal using feedback from receiving side
    • 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/221—TPC being performed according to specific parameters taking into account previous information or commands using past power control commands
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Transmitters (AREA)
  • Telephone Function (AREA)

Abstract

A wireless device is equipped with multiple (e.g., two) antennas, which may be of different designs. Each antenna interacts with the wireless environment in a different manner and achieves different scattering effect. The wireless device has one transmit signal path for each antenna. Each transmit signal path generates an RF output signal for transmission from the associated antenna. The wireless device controls the operation of one or more transmit signal paths to achieve a larger received signal level at a receiving base station. The wireless device may (1) autonomously adjust the transmit signal path(s) without relying on any feedback from the base station or (2) adjust the transmit signal path(s) based on transmit power control (TPC) commands received from the base station. The wireless device may selectively enable and disable each transmit signal path, vary the phase and/or gain of each transmit signal path, and so on.
PCT/US2005/046807 2004-12-21 2005-12-21 Transmit power reduction for a wireless device with multiple transmit signal paths WO2006069321A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007548531A JP4653179B2 (en) 2004-12-21 2005-12-21 Transmit power reduction for wireless devices with multiple transmit signal paths
EP05855378A EP1829246A2 (en) 2004-12-21 2005-12-21 Transmit power reduction for a wireless device with multiple transmit signal paths
CA002590659A CA2590659A1 (en) 2004-12-21 2005-12-21 Transmit power reduction for a wireless device with multiple transmit signal paths

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/020,054 US7660598B2 (en) 2004-12-21 2004-12-21 Transmit power reduction for a wireless device with multiple transmit signal paths
US11/020,054 2004-12-21

Publications (2)

Publication Number Publication Date
WO2006069321A2 WO2006069321A2 (en) 2006-06-29
WO2006069321A3 true WO2006069321A3 (en) 2006-11-02

Family

ID=36128351

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/046807 WO2006069321A2 (en) 2004-12-21 2005-12-21 Transmit power reduction for a wireless device with multiple transmit signal paths

Country Status (7)

Country Link
US (1) US7660598B2 (en)
EP (1) EP1829246A2 (en)
JP (6) JP4653179B2 (en)
KR (2) KR20070094000A (en)
CN (1) CN101124747A (en)
CA (1) CA2590659A1 (en)
WO (1) WO2006069321A2 (en)

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Also Published As

Publication number Publication date
JP2013062834A (en) 2013-04-04
JP2013179670A (en) 2013-09-09
CA2590659A1 (en) 2006-06-29
JP4653179B2 (en) 2011-03-16
JP2011061772A (en) 2011-03-24
CN101124747A (en) 2008-02-13
JP5129306B2 (en) 2013-01-30
EP1829246A2 (en) 2007-09-05
US7660598B2 (en) 2010-02-09
JP2011045055A (en) 2011-03-03
WO2006069321A2 (en) 2006-06-29
KR20090061680A (en) 2009-06-16
JP2011061771A (en) 2011-03-24
KR20070094000A (en) 2007-09-19
US20060135079A1 (en) 2006-06-22
JP2008524971A (en) 2008-07-10

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