Method for transmitting and receiving data bi-directionally...

Details Method for transmitting and receiving data bi-directionally... Method for transmitting and receiving data bi-directionally...

2005-09-06

2009-02-10

Hsu, Alpus H (Department: 2619)

Multiplex communications

Duplex

Communication over free space

C370S349000, C370S469000

Reexamination Certificate

active

07489646

ABSTRACT:
A method and device for bi-directionally transmitting and receiving data during an allocated time period are provided. The device includes a Physical Layer (PHY) module receiving a Medium Access Control (MAC) frame through a wireless medium, a MAC module reading a value of a first field in the received MAC frame, wherein the first field specifies whether there is more data to be sent, and a transmission rights determining module determining that a transmission right has been passed to the wireless device when the value of the first field is a first bit and a channel is idle during a predetermined threshold time after reception of the MAC frame, wherein the first bit represents that there is no more data to be sent.

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