Contention-based communication

Details Contention-based communication Contention-based communication

2011-08-02

2011-08-02

Vu, Huy D (Department: 2461)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S329000, C455S455000

Reexamination Certificate

active

07990944

ABSTRACT:
For an example embodiment, a method for a communication device operating in a synchronous communication system is described. The method includes performing a listen-before-talk (LBT) procedure prior to the start of a downlink subframe of a synchronous frame and determining if a transmission from another communication device of another communication system is detected during the LBT procedure. In the case that a transmission is detected during the LBT procedure, the communication device refrains from transmitting during the downlink subframe. In the case that a transmission is not detected during the LBT procedure, the communication device transmits during the downlink subframe.

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