InterDigital Inc (IDCC)

[Gamco]

United States Patent 7,519,018
Kwak April 14, 2009

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Method for physical layer automatic repeat request for a subscriber unit


Abstract
A method for physical automatic repeat request by a subscriber unit. A physical layer at the transmitter receives data and formats the received data into packets having a particular encoding/data modulation. The physical layer contains n channels which transmit the packets and retransmits packets upon failure to receive a corresponding acknowledgment for a given packet. An adaptive modulation and coding controller in the transmitter collects retransmission statistics and adjusts the particular encoding/data modulations using the collected statistics.


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Inventors: Kwak; Joseph A. (Bolingbrook, IL)
Assignee: InterDigital Technology Corporation (Wilmington, DE)

Appl. No.: 10/085,187
Filed: February 27, 2002

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Related U.S. Patent Documents

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Application Number Filing Date Patent Number Issue Date
09939410 Aug., 2001


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Current U.S. Class: 370/320 ; 370/310; 370/310.2; 370/428; 370/465; 455/69
Current International Class: H04B 7/216 (20060101)
Field of Search: 370/310,431,437,438,208,252,310.2,314,320,328-330,335,342,349,412,413,428,465 455/68,69