CA2341561A1 - Method and apparatus for a cdma random access communication system - Google Patents

Method and apparatus for a cdma random access communication system Download PDF

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Publication number
CA2341561A1
CA2341561A1 CA002341561A CA2341561A CA2341561A1 CA 2341561 A1 CA2341561 A1 CA 2341561A1 CA 002341561 A CA002341561 A CA 002341561A CA 2341561 A CA2341561 A CA 2341561A CA 2341561 A1 CA2341561 A1 CA 2341561A1
Authority
CA
Canada
Prior art keywords
remote unit
sequence
bit stream
data bit
communication system
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
CA002341561A
Other languages
French (fr)
Other versions
CA2341561C (en
Inventor
Karl E. Moerder
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.)
Tachyon Inc
Original Assignee
Tachyon, Inc.
Karl E. Moerder
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 Tachyon, Inc., Karl E. Moerder filed Critical Tachyon, Inc.
Publication of CA2341561A1 publication Critical patent/CA2341561A1/en
Application granted granted Critical
Publication of CA2341561C publication Critical patent/CA2341561C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04W74/004—Transmission of channel access control information in the uplink, i.e. towards network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • 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

In a system in which multiple remote units compete (104) for limited communication resources, a remote unit (104A) accesses the system by randomly selecting a first sequence from a set of predetermined sequences. The remote unit (140A) transmits a data bit stream modulated with the first sequence beginning at one of a set of recurring admission boundaries. If the remote unit (104A) determines that the data bit stream has not been successfully received at a hub station (100), the remote unit (104A) randomly selects a second sequence from the set of predetermined sequences. The remote unit (104A) transmits the data bit stream modulated with the second sequence beginning at one of the set of recurring admission boundaries.
CA002341561A 1998-07-21 1999-07-21 Method and apparatus for a cdma random access communication system Expired - Fee Related CA2341561C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US9362898P 1998-07-21 1998-07-21
US60/093,628 1998-07-21
US09/330,380 US6542493B1 (en) 1998-07-21 1999-06-11 Method and apparatus for a CDMA random access communication system
US09/330,380 1999-06-11
PCT/US1999/016535 WO2000005915A1 (en) 1998-07-21 1999-07-21 Method and apparatus for a cdma random access communication system

Publications (2)

Publication Number Publication Date
CA2341561A1 true CA2341561A1 (en) 2000-02-03
CA2341561C CA2341561C (en) 2009-01-13

Family

ID=26787746

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002341561A Expired - Fee Related CA2341561C (en) 1998-07-21 1999-07-21 Method and apparatus for a cdma random access communication system

Country Status (8)

Country Link
US (2) US6542493B1 (en)
EP (1) EP1097603B1 (en)
CN (1) CN1254995C (en)
AT (1) ATE277486T1 (en)
AU (1) AU5121099A (en)
CA (1) CA2341561C (en)
DE (1) DE69920466T2 (en)
WO (1) WO2000005915A1 (en)

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US6967998B1 (en) * 1999-11-12 2005-11-22 Qualcomm Incorporated Method and apparatus for monitoring transmission quality
DE60029740T2 (en) * 2000-02-16 2007-10-18 Lucent Technologies Inc. Apparatus, system and method for collision resolution in a time critical radio communication system
FR2819125B1 (en) * 2000-12-29 2004-04-02 Commissariat Energie Atomique DEVICE FOR EXCHANGING DIGITAL DATA IN A CDMA SYSTEM
FR2819126B1 (en) * 2000-12-29 2003-03-21 Commissariat Energie Atomique DIGITAL TRANSMIT / RECEIVE CIRCUIT IN A CDMA SYSTEM
US7095710B2 (en) * 2001-12-21 2006-08-22 Qualcomm Decoding using walsh space information
US7289460B1 (en) * 2002-06-14 2007-10-30 Lockheed Martin Corporation Satellite communications system
DE60310235T2 (en) * 2002-06-28 2007-07-12 Interdigital Technology Corp., Wilmington INTERFERENCE BASED FLIGHT MECHANISMS IN WIRELESS SYSTEMS OF THE THIRD GENERATION
US8320493B2 (en) * 2004-04-30 2012-11-27 Sharp Kabushiki Kaisha Wireless communication system
US7430163B2 (en) * 2004-07-19 2008-09-30 Tzero Technologies, Inc. Data stream transmission preprocessing
US9137822B2 (en) 2004-07-21 2015-09-15 Qualcomm Incorporated Efficient signaling over access channel
EP1954084B1 (en) * 2005-11-04 2013-03-13 NTT DoCoMo, Inc. Random access based transmission control method, mobile station, and radio base station
US7868874B2 (en) * 2005-11-15 2011-01-11 Synaptics Incorporated Methods and systems for detecting a position-based attribute of an object using digital codes
US8848914B2 (en) * 2008-11-18 2014-09-30 Qualcomm Incorporated Spectrum authorization and related communications methods and apparatus
US8509755B2 (en) * 2009-10-30 2013-08-13 Research In Motion Limited System and method for activating a component on an electronic device
US8730204B2 (en) 2010-09-16 2014-05-20 Synaptics Incorporated Systems and methods for signaling and interference detection in sensor devices
US8743080B2 (en) 2011-06-27 2014-06-03 Synaptics Incorporated System and method for signaling in sensor devices
US8766949B2 (en) 2011-12-22 2014-07-01 Synaptics Incorporated Systems and methods for determining user input using simultaneous transmission from multiple electrodes
US9063608B2 (en) 2012-06-14 2015-06-23 Synaptics Incorporated Systems and methods for sensor devices having a non-commensurate number of transmitter electrodes
US9176633B2 (en) 2014-03-31 2015-11-03 Synaptics Incorporated Sensor device and method for estimating noise in a capacitive sensing device
EP3329729B1 (en) * 2015-07-27 2020-04-01 Intel Corporation Enhanced rach (random access channel) design for 5g ciot (cellular internet of things)
US10025428B2 (en) 2015-11-19 2018-07-17 Synaptics Incorporated Method and apparatus for improving capacitive sensing detection
US10019122B2 (en) 2016-03-31 2018-07-10 Synaptics Incorporated Capacitive sensing using non-integer excitation

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Publication number Priority date Publication date Assignee Title
FI933129A0 (en) 1993-07-08 1993-07-08 Nokia Mobile Phones Ltd DATAOEVERFOERINGSFOERFARANDE FOER ETT DIGITALT CELLULAERT MOBILTELEFONSYSTEM OCH ETT DIGITALT CELLULAERT MOBILTELEFONSYSTEM
US5537397A (en) 1994-06-07 1996-07-16 Aloha Networks, Inc. Spread aloha CDMA data communications
FR2733113B1 (en) * 1995-04-14 1997-06-13 Europ Agence Spatiale SPREAD SPECTRUM SIGNAL RECEIVER
US5745485A (en) 1995-06-19 1998-04-28 Aloha Networks, Inc. Dual code multiple access for wireless data networks
FR2737362B1 (en) * 1995-07-25 1997-10-10 Matra Communication PROCESS FOR SELECTING THE PROPAGATION DELAYS RETAINED TO RECEIVE MESSAGES TRANSMITTED BY RADIOCOMMUNICATION WITH A SPREAD OF SPECTRUM
US6418148B1 (en) * 1995-10-05 2002-07-09 Lucent Technologies Inc. Burst-level resource allocation in cellular systems
US6108317A (en) * 1995-11-01 2000-08-22 Stm Wireless, Inc. Cyclic code phase multiple access for inbound satellite communications
US5696762A (en) * 1996-03-25 1997-12-09 Stanford Telecommunications, Inc. Rapid-acquisition access channel scheme for CDMA systems
US6259724B1 (en) 1996-10-18 2001-07-10 Telefonaktiebolaget L M Ericsson (Publ) Random access in a mobile telecommunications system
FI105741B (en) * 1998-02-12 2000-09-29 Nokia Networks Oy Communication method and radio system
US6400695B1 (en) * 1998-05-22 2002-06-04 Lucent Technologies Inc. Methods and apparatus for retransmission based access priority in a communications system

Also Published As

Publication number Publication date
CA2341561C (en) 2009-01-13
WO2000005915A1 (en) 2000-02-03
US7161928B2 (en) 2007-01-09
DE69920466T2 (en) 2005-11-17
CN1322451A (en) 2001-11-14
DE69920466D1 (en) 2004-10-28
CN1254995C (en) 2006-05-03
EP1097603B1 (en) 2004-09-22
ATE277486T1 (en) 2004-10-15
US20030133432A1 (en) 2003-07-17
US6542493B1 (en) 2003-04-01
AU5121099A (en) 2000-02-14
EP1097603A1 (en) 2001-05-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150721