WLAN device and method for interfacing between a MAC sublayer and a physical layer
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United States of America Patent
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Aug 28, 2007
Grant Date -
Jun 24, 2004
app pub date -
Dec 18, 2002
filing date -
Dec 18, 2002
priority date (Note) -
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Abstract
A wireless local area network (WLAN) device (200, FIG. 2) includes a medium access control (MAC) device (204) and a physical (PHY) device (202). The PHY device receives and transmits frames (FIG. 3) over a wireless medium. The MAC device detects (604, FIG. 6) when receipt is completed of a physical layer convergence procedure (PLCP) header (304, FIG. 3) of a received frame. Based on information that the MAC device extracts (606) from the PLCP header, the MAC device predicts (618) header information for a response frame before receipt of the received frame has completed. The PHY device begins transmitting (1110, FIG. 11) the response frame preamble (302, FIG. 3) upon expiration of an interframe space (IFS).
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