AU2001219076A1 - Using system frame number to implement timers in telecommunications system having redundancy - Google Patents

Using system frame number to implement timers in telecommunications system having redundancy

Info

Publication number
AU2001219076A1
AU2001219076A1 AU2001219076A AU1907601A AU2001219076A1 AU 2001219076 A1 AU2001219076 A1 AU 2001219076A1 AU 2001219076 A AU2001219076 A AU 2001219076A AU 1907601 A AU1907601 A AU 1907601A AU 2001219076 A1 AU2001219076 A1 AU 2001219076A1
Authority
AU
Australia
Prior art keywords
frame number
system frame
unit
communication system
operational process
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.)
Abandoned
Application number
AU2001219076A
Inventor
Marcus Karlsson
Patrik Rynback
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001219076A1 publication Critical patent/AU2001219076A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1675—Temporal synchronisation or re-synchronisation of redundant processing components
    • G06F11/1687—Temporal synchronisation or re-synchronisation of redundant processing components at event level, e.g. by interrupt or result of polling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2038—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant with a single idle spare processing component
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/142—Reconfiguring to eliminate the error

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Electric Clocks (AREA)

Abstract

A wireless communication system utilizes system frame numbers (SFNs) upon which to base identification of frames of information transmitted by the communication system, as well as for expressing timeout values associated with process-set timers. The wireless communication system comprises a first (active) unit (40) which executes an operational process (OP), as well as a second (standby) unit (42) which executes the operational process in redundant manner with the first unit. The operational process sets a timer by computing an expiration system frame number to be used for determining a timeout value. The timer expires when a current system frame number reaches the calculated expiration system frame number. The SFN-based timeout values of the present invention are easily accessible and easily re-established upon reset and resynchronization of one of the redundant units.
AU2001219076A 1999-11-18 2000-11-17 Using system frame number to implement timers in telecommunications system having redundancy Abandoned AU2001219076A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/443,154 US6567376B1 (en) 1999-02-25 1999-11-18 Using system frame number to implement timers in telecommunications system having redundancy
PCT/SE2000/002269 WO2001037093A1 (en) 1999-11-18 2000-11-17 Using system frame number to implement timers in telecommunications system having redundancy

Publications (1)

Publication Number Publication Date
AU2001219076A1 true AU2001219076A1 (en) 2001-05-30

Family

ID=23759634

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001219076A Abandoned AU2001219076A1 (en) 1999-11-18 2000-11-17 Using system frame number to implement timers in telecommunications system having redundancy

Country Status (9)

Country Link
US (1) US6567376B1 (en)
EP (1) EP1230599B1 (en)
JP (1) JP2003515300A (en)
CN (1) CN1210652C (en)
AT (1) ATE266229T1 (en)
AU (1) AU2001219076A1 (en)
DE (1) DE60010504D1 (en)
TW (1) TW490609B (en)
WO (1) WO2001037093A1 (en)

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US8270550B2 (en) * 2004-12-22 2012-09-18 Qualcomm Incorporated Methods and apparatus for efficiently synchronizing a transmitter and a receiver in a communication system
FI20050158A0 (en) * 2005-02-11 2005-02-11 Nokia Corp Recovery of the state information of a first tunnel endpoint
JP4603442B2 (en) * 2005-08-02 2010-12-22 日本電気株式会社 Data collection method and communication base station
WO2007148629A1 (en) * 2006-06-20 2007-12-27 Ntt Docomo, Inc. Wireless communication device and wireless communication method used for mobile communication system
US7734264B2 (en) * 2006-08-29 2010-06-08 Qualcomm Incorporated System frame number (SFN) evaluator
CN101014049B (en) * 2007-02-14 2012-06-06 中兴通讯股份有限公司 Method for managing timer of terminal wireless communication protocol stack software
GB2456128B (en) * 2007-12-20 2010-01-27 Samsung Electronics Co Ltd Communication system and method
JP4479930B2 (en) * 2007-12-21 2010-06-09 日本電気株式会社 Node system, server switching method, server device, data takeover method, and program
US8401026B2 (en) * 2009-05-18 2013-03-19 Cisco Technology, Inc. Achieving about an equal number of active links across chassis in a virtual port-channel environment
US20100329127A1 (en) * 2009-06-30 2010-12-30 Computer Associates Think, Inc. Network entity self-governing communication timeout management
JP5673448B2 (en) 2011-09-01 2015-02-18 ソニー株式会社 COMMUNICATION DEVICE, COMMUNICATION METHOD, COMMUNICATION SYSTEM, AND BASE STATION
BR112015019630A2 (en) * 2013-02-22 2017-07-18 Sony Corp communication control device and method, and terminal device
US9713108B2 (en) * 2014-10-10 2017-07-18 Mediatek Singapore Pte. Ltd. Synchronization for low coverage machine type communication devices
CN116113033B (en) * 2023-04-11 2023-06-30 上海新基讯通信技术有限公司 Method and system for synchronizing NR system and LTE system

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US4733353A (en) 1985-12-13 1988-03-22 General Electric Company Frame synchronization of multiply redundant computers
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Also Published As

Publication number Publication date
TW490609B (en) 2002-06-11
ATE266229T1 (en) 2004-05-15
DE60010504D1 (en) 2004-06-09
CN1210652C (en) 2005-07-13
WO2001037093A1 (en) 2001-05-25
US6567376B1 (en) 2003-05-20
CN1423776A (en) 2003-06-11
EP1230599B1 (en) 2004-05-06
JP2003515300A (en) 2003-04-22
EP1230599A1 (en) 2002-08-14

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