WO2004017656A3 - Selecting random access channels - Google Patents

Selecting random access channels Download PDF

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Publication number
WO2004017656A3
WO2004017656A3 PCT/US2003/024215 US0324215W WO2004017656A3 WO 2004017656 A3 WO2004017656 A3 WO 2004017656A3 US 0324215 W US0324215 W US 0324215W WO 2004017656 A3 WO2004017656 A3 WO 2004017656A3
Authority
WO
WIPO (PCT)
Prior art keywords
random access
radio
access channels
channels
base station
Prior art date
Application number
PCT/US2003/024215
Other languages
French (fr)
Other versions
WO2004017656A2 (en
WO2004017656A9 (en
Inventor
Brett Schein
John S Chen
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 AU2003269936A priority Critical patent/AU2003269936A1/en
Publication of WO2004017656A2 publication Critical patent/WO2004017656A2/en
Publication of WO2004017656A9 publication Critical patent/WO2004017656A9/en
Publication of WO2004017656A3 publication Critical patent/WO2004017656A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0866—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a dedicated channel for access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • 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
    • H04B7/0617—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 for beam forming
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure

Abstract

Embodiment of the present invention can be used to select random access channels to be assigned to user terminals. In one embodiment, the invention includes a base station receiving a signal from a second radio, the received signal containing information about the second radio, and selecting one or more channels to be used by the second radio for random access to the base station using the information about the second radio. Then the base station sends a signal to the second radio, the sent signal containing information about the selected one or more channels.
PCT/US2003/024215 2002-08-14 2003-08-01 Selecting random access channels WO2004017656A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003269936A AU2003269936A1 (en) 2002-08-14 2003-08-01 Selecting random access channels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/218,770 2002-08-14
US10/218,770 US7349371B2 (en) 2000-09-29 2002-08-14 Selecting random access channels

Publications (3)

Publication Number Publication Date
WO2004017656A2 WO2004017656A2 (en) 2004-02-26
WO2004017656A9 WO2004017656A9 (en) 2004-06-10
WO2004017656A3 true WO2004017656A3 (en) 2004-07-29

Family

ID=31886587

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/024215 WO2004017656A2 (en) 2002-08-14 2003-08-01 Selecting random access channels

Country Status (4)

Country Link
US (1) US7349371B2 (en)
KR (1) KR20050035272A (en)
AU (1) AU2003269936A1 (en)
WO (1) WO2004017656A2 (en)

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Also Published As

Publication number Publication date
US20030133426A1 (en) 2003-07-17
KR20050035272A (en) 2005-04-15
WO2004017656A2 (en) 2004-02-26
AU2003269936A1 (en) 2004-03-03
WO2004017656A9 (en) 2004-06-10
US7349371B2 (en) 2008-03-25

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