WO2002027972A3 - Downlink transmission in a wireless data communication system having a base station with a smart antenna system - Google Patents

Downlink transmission in a wireless data communication system having a base station with a smart antenna system Download PDF

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Publication number
WO2002027972A3
WO2002027972A3 PCT/US2001/030174 US0130174W WO0227972A3 WO 2002027972 A3 WO2002027972 A3 WO 2002027972A3 US 0130174 W US0130174 W US 0130174W WO 0227972 A3 WO0227972 A3 WO 0227972A3
Authority
WO
WIPO (PCT)
Prior art keywords
base station
channel
user terminal
downlink
smart antenna
Prior art date
Application number
PCT/US2001/030174
Other languages
French (fr)
Other versions
WO2002027972A2 (en
Inventor
Roger Rogard
Michael Youssefmir
Bjorn Erik Ottersten
Original Assignee
Arraycomm 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
Application filed by Arraycomm Inc filed Critical Arraycomm Inc
Priority to KR1020037004466A priority Critical patent/KR100797648B1/en
Priority to JP2002531641A priority patent/JP5122719B2/en
Priority to EP01973562A priority patent/EP1325566B1/en
Priority to AU2001293126A priority patent/AU2001293126B2/en
Priority to AU9312601A priority patent/AU9312601A/en
Publication of WO2002027972A2 publication Critical patent/WO2002027972A2/en
Publication of WO2002027972A3 publication Critical patent/WO2002027972A3/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
    • 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

Abstract

A method, device, and machine readable medium to communicate from a base station having a smart antenna system to a user terminal. The method includes providing a downlink channel for transmitting downlink data from the base station to the user terminal, providing an associated channel for the base station to receive an uplink response signal from the user terminal in response to the downlink data. The associated channel is associated, and has a predefine relationship, with the downlink channel. The method further includes providing an uplink data channel, distinct from the associated uplink channel, for the base station to receive uplink data from the user terminal. The method also includes receiving the uplink response signal at the base station, determining a downlink smart antenna processing strategy using the received uplink response signal, sending downlink data from the base station to the user terminal using the determined downlink smart antenna processing strategy, and receiving uplink data from the user terminal on the uplink data channel.
PCT/US2001/030174 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system WO2002027972A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020037004466A KR100797648B1 (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having base station with a smart antenna system
JP2002531641A JP5122719B2 (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system
EP01973562A EP1325566B1 (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system
AU2001293126A AU2001293126B2 (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system
AU9312601A AU9312601A (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/676,887 2000-09-29
US09/676,887 US7062294B1 (en) 2000-09-29 2000-09-29 Downlink transmission in a wireless data communication system having a base station with a smart antenna system

Publications (2)

Publication Number Publication Date
WO2002027972A2 WO2002027972A2 (en) 2002-04-04
WO2002027972A3 true WO2002027972A3 (en) 2002-06-13

Family

ID=24716442

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/030174 WO2002027972A2 (en) 2000-09-29 2001-09-26 Downlink transmission in a wireless data communication system having a base station with a smart antenna system

Country Status (7)

Country Link
US (1) US7062294B1 (en)
EP (1) EP1325566B1 (en)
JP (1) JP5122719B2 (en)
KR (1) KR100797648B1 (en)
CN (1) CN1287609C (en)
AU (2) AU9312601A (en)
WO (1) WO2002027972A2 (en)

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