WO2005039094A3 - Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system - Google Patents

Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system Download PDF

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Publication number
WO2005039094A3
WO2005039094A3 PCT/US2004/034305 US2004034305W WO2005039094A3 WO 2005039094 A3 WO2005039094 A3 WO 2005039094A3 US 2004034305 W US2004034305 W US 2004034305W WO 2005039094 A3 WO2005039094 A3 WO 2005039094A3
Authority
WO
WIPO (PCT)
Prior art keywords
sector
inter
base station
band
wireless communications
Prior art date
Application number
PCT/US2004/034305
Other languages
French (fr)
Other versions
WO2005039094A2 (en
Inventor
Rajiv Laroia
Frank A Lane
Original Assignee
Flarion Technologies Inc
Rajiv Laroia
Frank A Lane
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 to NZ546567A priority Critical patent/NZ546567A/en
Application filed by Flarion Technologies Inc, Rajiv Laroia, Frank A Lane filed Critical Flarion Technologies Inc
Priority to JP2006535398A priority patent/JP4690333B2/en
Priority to EP04795464.9A priority patent/EP1673876B1/en
Priority to AU2004306920A priority patent/AU2004306920C1/en
Priority to BRPI0415379-0A priority patent/BRPI0415379A/en
Priority to CA002542614A priority patent/CA2542614A1/en
Priority to MXPA06004133A priority patent/MXPA06004133A/en
Publication of WO2005039094A2 publication Critical patent/WO2005039094A2/en
Publication of WO2005039094A3 publication Critical patent/WO2005039094A3/en
Priority to IL174939A priority patent/IL174939A/en
Priority to NO20062173A priority patent/NO20062173L/en
Priority to KR1020067009465A priority patent/KR101079944B1/en
Priority to AU2008203795A priority patent/AU2008203795B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Abstract

A wireless communications system, e.g., an OFDM system, uses a plurality of carrier frequencies each with an associated frequency band. A base station sector transmitter in the system transmits ordinary signaling, e.g., user data, in its own assigned band. In addition the sector base station transmitter periodically transmits beacon signals into its own frequency band and the frequency bands used by adjacent sector transmitters for their ordinary signaling. Beacon signals, being short duration high power signals with sector transmission power concentrated on one or a few tones, are easily detectable. Each beacon signal may be identified as to the source base station sector transmitter, e.g., based on tone. A mobile node, tuned to a single carrier band, receives a plurality of beacon signals, identifies the sources of the received beacons, compares the received strength of the beacons, and makes handoff decisions, without having to switch carrier band.
PCT/US2004/034305 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system WO2005039094A2 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
CA002542614A CA2542614A1 (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
JP2006535398A JP4690333B2 (en) 2003-10-16 2004-10-15 Method and apparatus for improving handoff between sectors and / or cells in a multi-carrier wireless communication system
EP04795464.9A EP1673876B1 (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
AU2004306920A AU2004306920C1 (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
BRPI0415379-0A BRPI0415379A (en) 2003-10-16 2004-10-15 methods and apparatus for enhancing inter-sector and / or inter-cell transfers in a multi-carrier wireless communication system
NZ546567A NZ546567A (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
MXPA06004133A MXPA06004133A (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system.
IL174939A IL174939A (en) 2003-10-16 2006-04-11 Methods and apparatus for improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
NO20062173A NO20062173L (en) 2003-10-16 2006-05-15 Improvement and realignment in sectors and cells in a communication system
KR1020067009465A KR101079944B1 (en) 2003-10-16 2006-05-16 - Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
AU2008203795A AU2008203795B2 (en) 2003-10-16 2008-08-08 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US51196403P 2003-10-16 2003-10-16
US60/511,964 2003-10-16
US10/964,908 US6993333B2 (en) 2003-10-16 2004-10-14 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
US10/964,908 2004-10-14

Publications (2)

Publication Number Publication Date
WO2005039094A2 WO2005039094A2 (en) 2005-04-28
WO2005039094A3 true WO2005039094A3 (en) 2005-09-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/034305 WO2005039094A2 (en) 2003-10-16 2004-10-15 Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system

Country Status (14)

Country Link
US (3) US6993333B2 (en)
EP (1) EP1673876B1 (en)
JP (2) JP4690333B2 (en)
KR (1) KR101079944B1 (en)
AU (2) AU2004306920C1 (en)
BR (1) BRPI0415379A (en)
CA (1) CA2542614A1 (en)
HK (1) HK1137886A1 (en)
IL (1) IL174939A (en)
MX (1) MXPA06004133A (en)
NO (1) NO20062173L (en)
NZ (1) NZ546567A (en)
RU (2) RU2326497C2 (en)
WO (1) WO2005039094A2 (en)

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