CA2433110A1 - Startup protocol for a communication system - Google Patents

Startup protocol for a communication system Download PDF

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Publication number
CA2433110A1
CA2433110A1 CA002433110A CA2433110A CA2433110A1 CA 2433110 A1 CA2433110 A1 CA 2433110A1 CA 002433110 A CA002433110 A CA 002433110A CA 2433110 A CA2433110 A CA 2433110A CA 2433110 A1 CA2433110 A1 CA 2433110A1
Authority
CA
Canada
Prior art keywords
slave
master
phase
maintaining
signal
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
CA002433110A
Other languages
French (fr)
Other versions
CA2433110C (en
Inventor
Oscar E. Agazzi
John L. Creigh
Mehdi Hatamian
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.)
Broadcom Corp
Original Assignee
Broadcom Corporation
Oscar E. Agazzi
John L. Creigh
Mehdi Hatamian
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 claimed from US09/037,328 external-priority patent/US6236645B1/en
Priority claimed from US09/078,933 external-priority patent/US6792600B1/en
Priority claimed from US09/078,466 external-priority patent/US6201796B1/en
Priority claimed from US09/143,476 external-priority patent/US6304598B1/en
Application filed by Broadcom Corporation, Oscar E. Agazzi, John L. Creigh, Mehdi Hatamian filed Critical Broadcom Corporation
Priority claimed from CA002320701A external-priority patent/CA2320701C/en
Publication of CA2433110A1 publication Critical patent/CA2433110A1/en
Application granted granted Critical
Publication of CA2433110C publication Critical patent/CA2433110C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Bidirectional Digital Transmission (AREA)

Abstract

A startup protocol for use in a communication system having a master transceiver at one end of a twisted wire pair and a slave transceiver at the opposite end of the twisted wire pair. Each transceiver has a near-end noise reduction system, far-end noise reduction system, a timing recovery system and at least one equalizer. The protocol includes the step of, during a first phase, maintaining the master in a half-duplex mode during which it transmits a signal but does not receive any signals, maintaining the slave in a half-duplex mode during which it receives the signal from the master but does not transmit any signals, converging The master near-end noise reduction system, adjusting the frequency and phase of the signal received by the slave such that the frequency and phase are synchronized with the frequency and phase of the signal transmitted by the master, and converging the equalizer of the slave. Also included is the step of, during a second phase, maintaining the slave in a half duplex mode during which it transmits a signal but does not receive any signals, maintaining the master in a half duplex mode during which it receives the signal from the slave but does not transmit any signals, freezing the frequency and phase of the slave, converging the slave near-end noise reduction system, adjusting the phase of the signal received by the master such that the phase is synchronized with the phase of the signal transmitted by the slave, and converging the equalizer of the master. Also included is the step of, during a third phase, maintaining the slave in a full-duplex mode such that the slave transmits and receive signals, maintaining the master in a full-duplex mode such that the master transmits and receive signals, and reconverging the master near-end noise reduction system.
CA002433110A 1998-03-09 1999-03-08 Startup protocol for a communication system Expired - Fee Related CA2433110C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
US09/037,328 US6236645B1 (en) 1998-03-09 1998-03-09 Apparatus for, and method of, reducing noise in a communications system
US09/037,328 1998-03-09
US09/078,933 US6792600B1 (en) 1998-05-14 1998-05-14 Method and apparatus for just in time compilation of instructions
US09/078,466 1998-05-14
US09/078,466 US6201796B1 (en) 1998-05-14 1998-05-14 Startup protocol for high throughput communications systems
US09/078,933 1998-05-14
US09/143,476 US6304598B1 (en) 1998-08-28 1998-08-28 Apparatus for, and method of, reducing power dissipation in a communications system
US09/143,476 1998-08-28
CA002320701A CA2320701C (en) 1998-03-09 1999-03-08 Gigabit ethernet transceiver

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002320701A Division CA2320701C (en) 1998-03-09 1999-03-08 Gigabit ethernet transceiver

Publications (2)

Publication Number Publication Date
CA2433110A1 true CA2433110A1 (en) 1999-09-16
CA2433110C CA2433110C (en) 2004-06-29

Family

ID=27792299

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002433111A Expired - Fee Related CA2433111C (en) 1998-03-09 1999-03-08 Apparatus and method for power dissipation reduction in a communication system
CA002433110A Expired - Fee Related CA2433110C (en) 1998-03-09 1999-03-08 Startup protocol for a communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002433111A Expired - Fee Related CA2433111C (en) 1998-03-09 1999-03-08 Apparatus and method for power dissipation reduction in a communication system

Country Status (1)

Country Link
CA (2) CA2433111C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10237836B2 (en) 2014-06-09 2019-03-19 Parallel Wireless, Inc. Frequency and phase synchronization using full duplex radios over wireless mesh networks

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8700105B2 (en) 2006-06-22 2014-04-15 Qualcomm Incorporated Low duty cycle device protocol
US8018884B2 (en) 2006-06-21 2011-09-13 Qualcomm Incorporated Low duty cycle network controller
US9185654B2 (en) 2008-07-16 2015-11-10 Qualcomm Incorporated Network server having an information and scheduling controller to support one or more low duty cycle wireless devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10237836B2 (en) 2014-06-09 2019-03-19 Parallel Wireless, Inc. Frequency and phase synchronization using full duplex radios over wireless mesh networks

Also Published As

Publication number Publication date
CA2433111A1 (en) 1999-09-16
CA2433110C (en) 2004-06-29
CA2433111C (en) 2009-01-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130308