Patent ID: 6765882
Filing Date: 2004-07-20
Classification: H04L,H04W

Abstract:
In a radio communication system, a method for preventing frame collisions on a channel linking a half-duplex unit and a full-duplex unit, the method comprising:transmitting a first sequence of frames between the half-duplex unit and the full-duplex unit, each of the frames including a flag indicating whether the frame is the last frame of the sequence; receiving at a receiving unit selected from the half-duplex and full-duplex units one of the frames having the flag set to indicate the last frame; outputting from the receiving unit an acknowledgement in response to the set flag, the acknowledgement having a hold flag indicating whether the receiving unit is to subsequently transmit a second sequence of frames; and holding off further transmission of frames at a transmission unit selected from the half-duplex and full-duplex units in response to receiving the acknowledgement having the hold flag set to indicate the subsequent transmission of the second sequence of frames.