CA2346618A1 - Method for avoiding interference in a digital communication system - Google Patents

Method for avoiding interference in a digital communication system Download PDF

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Publication number
CA2346618A1
CA2346618A1 CA002346618A CA2346618A CA2346618A1 CA 2346618 A1 CA2346618 A1 CA 2346618A1 CA 002346618 A CA002346618 A CA 002346618A CA 2346618 A CA2346618 A CA 2346618A CA 2346618 A1 CA2346618 A1 CA 2346618A1
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CA
Canada
Prior art keywords
interference
time slots
bursts
frame
data frame
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
CA002346618A
Other languages
French (fr)
Other versions
CA2346618C (en
Inventor
Milosh Koprivica
Ralph Tischler
Sarkis Teghararian
Dion Horvat
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.)
VTech Communications Ltd
Original Assignee
VTech Communications Ltd
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 VTech Communications Ltd filed Critical VTech Communications Ltd
Publication of CA2346618A1 publication Critical patent/CA2346618A1/en
Application granted granted Critical
Publication of CA2346618C publication Critical patent/CA2346618C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Abstract

A technique for time domain avoidance of communications link interference sources characterized by intermittent, periodic short bursts of energy. A
transmitting source can be assigned two time slots within a time domain multiple access data frame over which each data packet can be transmitted. The time slots are separated by a duration greater than that of an interference burst, such that an interference burst does not affect both time slots in any given frame. Therefore, the data packet can be received on at least one of the two assigned time slots. Transmitter power consumption can be reduced by calculating the timing of the periodic interference bursts, and only transmitting a data packet on one of the two assigned time slots that will not coincide with an interference burst in each frame. Communications link capacity can be improved during the presence of interference by synchronizing the data frame to the timing of the interference bursts. The bursts then occupy fixed time slots in each data frame, enabling standard single time slot transmissions for the remaining communications channels in the data frame.
CA002346618A 2000-05-24 2001-05-07 Method for avoiding interference in a digital communication system Expired - Fee Related CA2346618C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/578,140 US7027424B1 (en) 2000-05-24 2000-05-24 Method for avoiding interference in a digital communication system
US09/578,140 2000-05-24

Publications (2)

Publication Number Publication Date
CA2346618A1 true CA2346618A1 (en) 2001-11-24
CA2346618C CA2346618C (en) 2006-10-17

Family

ID=24311604

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002346618A Expired - Fee Related CA2346618C (en) 2000-05-24 2001-05-07 Method for avoiding interference in a digital communication system

Country Status (5)

Country Link
US (3) US7027424B1 (en)
CA (1) CA2346618C (en)
DE (1) DE10125728B4 (en)
GB (1) GB2367217B (en)
HK (1) HK1042606B (en)

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Also Published As

Publication number Publication date
US20110249598A1 (en) 2011-10-13
HK1042606A1 (en) 2002-08-16
GB2367217B (en) 2004-08-18
DE10125728A1 (en) 2001-11-29
GB2367217A (en) 2002-03-27
DE10125728B4 (en) 2007-10-31
US7027424B1 (en) 2006-04-11
US7990933B2 (en) 2011-08-02
US8531998B2 (en) 2013-09-10
CA2346618C (en) 2006-10-17
US20060120333A1 (en) 2006-06-08
HK1042606B (en) 2005-04-22
GB0112482D0 (en) 2001-07-11

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