CA2094710A1 - Method and apparatus for establishing spread spectrum communications - Google Patents

Method and apparatus for establishing spread spectrum communications

Info

Publication number
CA2094710A1
CA2094710A1 CA 2094710 CA2094710A CA2094710A1 CA 2094710 A1 CA2094710 A1 CA 2094710A1 CA 2094710 CA2094710 CA 2094710 CA 2094710 A CA2094710 A CA 2094710A CA 2094710 A1 CA2094710 A1 CA 2094710A1
Authority
CA
Canada
Prior art keywords
master unit
node
spread spectrum
unit
transmitting
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
CA 2094710
Other languages
French (fr)
Other versions
CA2094710C (en
Inventor
Robert Clyde Dixon
Jeffrey Scott Vanderpool
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.)
Xircom Wireless Inc
Original Assignee
Robert Clyde Dixon
Jeffrey Scott Vanderpool
Omnipoint Corporation
Omnipoint Technologies, Inc.
Xircom Wireless, 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 Robert Clyde Dixon, Jeffrey Scott Vanderpool, Omnipoint Corporation, Omnipoint Technologies, Inc., Xircom Wireless, Inc. filed Critical Robert Clyde Dixon
Publication of CA2094710A1 publication Critical patent/CA2094710A1/en
Application granted granted Critical
Publication of CA2094710C publication Critical patent/CA2094710C/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
    • H04B7/24—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]

Abstract

A method for establishing communications between a master unit (50) and a plurality of node units (51-55). Of the plurality of node units, K node units are assumed to have established communications with a master unit. A first (K+ 1) node unit of the plurality of node units desires to establish communications with the master unit. The method includes transmitting from the master unit a base-station spread spectrum signal (CSn1) having a common-signalling chip code, transmitting from the first node unit a second spread spectrum signal (CSm) with a first identification code using the common-signalling chip code, transmitting from the master unit a third spread spectrum signal (CSn2) with a master unit identification code, using the common-signalling chip code. The method further includes generating at the first node unit using the master unit identification signal (CSn2) a master unit chip code for transmitting spread spectrum signals (CNMK+1) to the master unit. Additionally, the method includes generating at the master unit using the first identification code, a first node unit chip code for transmitting spread spectrum signals (CMNk+1) to the first node unit.
CA002094710A 1990-10-23 1991-10-03 Method and apparatus for establishing spread spectrum communications Expired - Lifetime CA2094710C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60077290A 1990-10-23 1990-10-23
US600,772 1990-10-23

Publications (2)

Publication Number Publication Date
CA2094710A1 true CA2094710A1 (en) 1992-04-24
CA2094710C CA2094710C (en) 1998-12-01

Family

ID=24404975

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002094710A Expired - Lifetime CA2094710C (en) 1990-10-23 1991-10-03 Method and apparatus for establishing spread spectrum communications

Country Status (5)

Country Link
US (3) US5455822A (en)
KR (1) KR100204368B1 (en)
AU (1) AU8959191A (en)
CA (1) CA2094710C (en)
WO (1) WO1992007434A1 (en)

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US5737324A (en) 1998-04-07
WO1992007434A1 (en) 1992-04-30
US7411936B2 (en) 2008-08-12
CA2094710C (en) 1998-12-01
US20010000136A1 (en) 2001-04-05
US5455822A (en) 1995-10-03
KR100204368B1 (en) 1999-06-15

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