CA2097066A1 - Cdma microcellular telephone system and distributed antenna system therefor - Google Patents

Cdma microcellular telephone system and distributed antenna system therefor

Info

Publication number
CA2097066A1
CA2097066A1 CA2097066A CA2097066A CA2097066A1 CA 2097066 A1 CA2097066 A1 CA 2097066A1 CA 2097066 A CA2097066 A CA 2097066A CA 2097066 A CA2097066 A CA 2097066A CA 2097066 A1 CA2097066 A1 CA 2097066A1
Authority
CA
Canada
Prior art keywords
distributed antenna
cdma
antenna system
utilized
signals
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2097066A
Other languages
French (fr)
Other versions
CA2097066C (en
Inventor
Klein S. Gilhousen
Franklin P. Antonio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2097066A1 publication Critical patent/CA2097066A1/en
Application granted granted Critical
Publication of CA2097066C publication Critical patent/CA2097066C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04B7/08—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
    • H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • 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
    • H04B7/0667—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 delayed versions of same signal
    • H04B7/0671—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 delayed versions of same signal using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • 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
    • H04B7/022—Site diversity; Macro-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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0891—Space-time diversity
    • H04B7/0894—Space-time diversity using different delays between antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

Abstract

A code division multiple access (CDMA) communication system in which cellular techniques are utilized in a wireless Private Branch Exchange (PBX) environment. A microcellular arrangement is defined in which a base station (10) communicates user information signals using CDMA communication signals with subscriber terminals. A distributed antenna system (26) is utilized in the system to provide multipath signals which facilitate signal diversity for enhanced system performance.
CA002097066A 1990-12-07 1991-12-06 Cdma microcellular telephone system and distributed antenna system therefor Expired - Lifetime CA2097066C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62411890A 1990-12-07 1990-12-07
US624,118 1990-12-07
PCT/US1991/009295 WO1992010890A1 (en) 1990-12-07 1991-12-06 Cdma microcellular telephone system and distributed antenna system therefor

Publications (2)

Publication Number Publication Date
CA2097066A1 true CA2097066A1 (en) 1992-06-08
CA2097066C CA2097066C (en) 2000-08-22

Family

ID=24500729

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097066A Expired - Lifetime CA2097066C (en) 1990-12-07 1991-12-06 Cdma microcellular telephone system and distributed antenna system therefor

Country Status (17)

Country Link
US (1) US5280472A (en)
JP (1) JP3325890B2 (en)
KR (1) KR970000790B1 (en)
AU (1) AU652602B2 (en)
BG (1) BG61052B1 (en)
BR (1) BR9107213A (en)
CA (1) CA2097066C (en)
CZ (1) CZ282725B6 (en)
FI (1) FI111306B (en)
HU (1) HU216923B (en)
IL (1) IL100213A (en)
MX (1) MX173446B (en)
NO (1) NO316199B1 (en)
RO (1) RO119761B1 (en)
RU (1) RU2111619C1 (en)
SK (1) SK280276B6 (en)
WO (1) WO1992010890A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426391B2 (en) 1992-03-05 2008-09-16 Qualcomm Incorporated Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system

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BR9107213A (en) 1993-11-03
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MX173446B (en) 1994-03-03
FI932523A (en) 1993-08-02
US5280472A (en) 1994-01-18
BG61052B1 (en) 1996-09-30
RO119761B1 (en) 2005-02-28
AU9138691A (en) 1992-07-08
RU2111619C1 (en) 1998-05-20
HUT64655A (en) 1994-01-28
HU9301626D0 (en) 1993-09-28
CZ109793A3 (en) 1994-04-13
JP3325890B2 (en) 2002-09-17
WO1992010890A1 (en) 1992-06-25
IL100213A0 (en) 1992-09-06
FI932523A0 (en) 1993-06-02
MX9102432A (en) 1992-06-01
NO316199B1 (en) 2003-12-22
KR970000790B1 (en) 1997-01-20
SK280276B6 (en) 1999-10-08
AU652602B2 (en) 1994-09-01
NO932041L (en) 1993-06-04
JPH06504660A (en) 1994-05-26

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