SE9902442L - Method and apparatus in a digital communication system - Google Patents

Method and apparatus in a digital communication system

Info

Publication number
SE9902442L
SE9902442L SE9902442A SE9902442A SE9902442L SE 9902442 L SE9902442 L SE 9902442L SE 9902442 A SE9902442 A SE 9902442A SE 9902442 A SE9902442 A SE 9902442A SE 9902442 L SE9902442 L SE 9902442L
Authority
SE
Sweden
Prior art keywords
time slot
bridging
mapping table
time
effect
Prior art date
Application number
SE9902442A
Other languages
Swedish (sv)
Other versions
SE9902442D0 (en
Inventor
Joachim Roos
Original Assignee
Net Insight 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 Net Insight Ab filed Critical Net Insight Ab
Priority to SE9902442A priority Critical patent/SE9902442L/en
Publication of SE9902442D0 publication Critical patent/SE9902442D0/en
Priority to AU60388/00A priority patent/AU6038800A/en
Priority to PCT/SE2000/001372 priority patent/WO2001001638A1/en
Publication of SE9902442L publication Critical patent/SE9902442L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/06—Time-space-time switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13103—Memory
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13214—Clock signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13216—Code signals, frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13297—Coupling different rates in TDM systems, data rate adaptation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1336—Synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13393—Time slot switching, T-stage, time slot interchanging, TSI

Abstract

An arrangement (200) and a method are disclosed having a capability of bridging between clock domains in a digital switch. The bridging is accomplished by means of a time slot mapping table (370) containing information typically regarding both time and space switching of the time slot data entries between incoming and outgoing bit streams. By incorporating instructions in the time slot mapping table (370) having the purpose of providing an indication of whether of not to actually transfer data to an output port (330), it is possible to obtain the effect of bridging between the different clock domains. In other words, a selection in made based on the information in the mapping table (370) to obtain a selected subset of time slot data entries to be transferred from an input frame buffer (300) to an output bit stream, the feature of selecting a subset and not the entire set of time slots from input bit streams having the effect of lowering the bit rate.
SE9902442A 1999-06-28 1999-06-28 Method and apparatus in a digital communication system SE9902442L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9902442A SE9902442L (en) 1999-06-28 1999-06-28 Method and apparatus in a digital communication system
AU60388/00A AU6038800A (en) 1999-06-28 2000-06-28 Method and arrangement for time and space switching data between incoming and outgoing bit streams, each belonging to a different clock domain
PCT/SE2000/001372 WO2001001638A1 (en) 1999-06-28 2000-06-28 Method and arrangement for time and space switching data between incoming and outgoing bit streams, each belonging to a different clock domain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9902442A SE9902442L (en) 1999-06-28 1999-06-28 Method and apparatus in a digital communication system

Publications (2)

Publication Number Publication Date
SE9902442D0 SE9902442D0 (en) 1999-06-28
SE9902442L true SE9902442L (en) 2000-12-29

Family

ID=20416264

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9902442A SE9902442L (en) 1999-06-28 1999-06-28 Method and apparatus in a digital communication system

Country Status (3)

Country Link
AU (1) AU6038800A (en)
SE (1) SE9902442L (en)
WO (1) WO2001001638A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005272A (en) * 1974-08-14 1977-01-25 Arthur A. Collins, Inc. Time folded TST (time space time) switch
US4355384A (en) * 1980-03-19 1982-10-19 Digital Switch Corporation Non-blocking expandable switching matrix for a telecommunication system
US5128929A (en) * 1988-11-15 1992-07-07 Nec Corporation Time division switching system capable of broad band communications service
SE9703449D0 (en) * 1997-09-24 1997-09-24 Net Insight Ab Method, system and apparatus for transferring information between nodes in a time division multiplexed network
KR20010052097A (en) * 1997-11-06 2001-06-25 네트 인사이트 에이비 Method and apparatus for switching data between bitstreams of a time division multiplexed network
SE9704738D0 (en) * 1997-12-18 1997-12-18 Net Insight Ab Method and apparatus for switching data between bitstreams of a circuit switched time division multiplexed network

Also Published As

Publication number Publication date
AU6038800A (en) 2001-01-31
SE9902442D0 (en) 1999-06-28
WO2001001638A1 (en) 2001-01-04

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Legal Events

Date Code Title Description
NAV Patent application has lapsed