Communication device and distinguishing method for distinguishing between different data burst types in a digital telecommunication system
First Claim
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1. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system, comprising:
- receiving means for receiving data bursts including bursts of a first type and bursts of a second type different from said first type, said first type bursts respectively comprising a first training sequence and said second type bursts respectively comprising a second training sequence, correlation means for auto-correlating the data of received data bursts and outputting an auto-correlation result, and recognizing means for recognizing the type of a received data burst on the basis of a phase value of the auto-correlation result of the training sequence of said data burst.
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Abstract
A communication device for transmitting and receiving control and user data bursts in a digital telecommunication system. Data bursts including bursts of a first type and bursts of a second type different from the first type, are received, with the first type bursts comprising a first training sequence and the second type bursts comprising a second training sequence, Data of the received data bursts are auto-correlated; and the type of a received data burst is recognized on the basis of a phase value of the auto-correlation result of the training sequence of the data burst.
56 Citations
13 Claims
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1. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system, comprising:
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receiving means for receiving data bursts including bursts of a first type and bursts of a second type different from said first type, said first type bursts respectively comprising a first training sequence and said second type bursts respectively comprising a second training sequence, correlation means for auto-correlating the data of received data bursts and outputting an auto-correlation result, and recognizing means for recognizing the type of a received data burst on the basis of a phase value of the auto-correlation result of the training sequence of said data burst. - View Dependent Claims (2, 3, 4, 5, 6, 7)
characterized in, that said recognizing means comprises means for detecting the phase value of the auto-correlation result of the training sequence. -
3. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system according to claim 2,
characterized in, that said recognizing means comprises means for comparing said detected phase value with a predetermined phase threshold to recognize the type of the received data burst. -
4. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system according to claim 1,
characterized in, that said recognizing means comprises means for detecting the sign value of the real part of the auto correlation result of the training sequence and means for determining the type of the received data burst on the basis of said sign value. -
5. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system according to claim 1,
characterized in, that in said first or said second training sequence every symbol is inverted in relation to the respective preceding symbol. -
6. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system according to claim 5,
characterized in, that all symbols of said first and second training sequence respectively consist of the same number of samples and have an identical absolute value. -
7. Communication device for transmitting and receiving control and user data bursts in a digital telecommunication system according to one of the claims 1,
characterized in, that said communication device is a mobile terminal of said telecommunication system, whereby said first type burst is a downlink data burst from a base station and said second type burst is an uplink data burst from another mobile terminal.
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8. Method for distinguishing between data bursts of a first type transmitted from a first communication device and data bursts of a second type different from said first type transmitted from a second communication device in a digital telecommunication system, said first type bursts comprising a first training sequence and said second type bursts comprising a second training sequence, with the steps of
receiving a data burst, auto-correlating the data of said received data burst and outputting an auto-correlation result, and recognizing the type of said received data burst on the basis of a phase value of the auto-correlation result of the training sequence of said data burst.
Specification
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Current AssigneeRedwood Technologies, LLC (Dominion Harbor Enterprises, LLC)
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Original AssigneeSony Limited (Sony Group Corp.)
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InventorsBöhnke, Ralf, Dölle, Thomas, Konschak, Tino
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Primary Examiner(s)DEPPE, BETSY LEE
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Application NumberUS09/545,759Time in Patent Office1,366 DaysField of Search375/142, 375/150, 375/324, 375/340, 375/342, 375/343, 375/316, 375/354, 375/364, 375/365, 375/368, 455/422.1, 455/500, 455/507, 455/526, 370/314, 370/321, 370/326, 370/337, 370/347, 370/349, 370/350, 370/522US Class Current375/342CPC Class CodesH04B 7/2656 for structure of frame, burstH04L 7/041 using special codes as sync...
