초록 ▼

A method and apparatus for controlling a retransmission in a telecommunications system. A pointer, V(P), that points to the upper bound of retransmitted data frames in a receiver buffer is introduced. A list includes at least one entry indicating a missed data frame for which a retransmission reques

A method and apparatus for controlling a retransmission in a telecommunications system. A pointer, V(P), that points to the upper bound of retransmitted data frames in a receiver buffer is introduced. A list includes at least one entry indicating a missed data frame for which a retransmission request has been transmitted. The entry is associated with a retransmission/abort timer that is started upon transmission of the retransmission request for the data frame. Once a retransmission timer is started, any received data frame type, whether valid or not, is counted in the incrementation of the retransmission/abort timer for an unreceived data frame. However, if the received data frame is not a valid data frame, any expiration action on the retransmission/abort timer is disabled. Also, anytime any valid frame is received, an expiration action may be taken on the retransmission timer of unreceived data frames having a sequence number less than V(P).

대표청구항 ▼

[ What is claimed is:] [1.] A method for receiving data frames in a transceiver, said method comprising the steps of:detecting that a first selected frame has not been received in a sequence of a first plurality of frames transmitted to the transceiver;transmitting a retransmission request from the

[ What is claimed is:] [1.] A method for receiving data frames in a transceiver, said method comprising the steps of:detecting that a first selected frame has not been received in a sequence of a first plurality of frames transmitted to the transceiver;transmitting a retransmission request from the transceiver, said retransmission request requesting retransmission of said first selected frame to the transceiver;starting a timer in response to transmitting said retransmission request;receiving a second plurality of frames at the transceiver and buffering said second plurality of frames in a buffer;setting a pointer that indicates the highest sequence number of frames in said buffer received as a result of retransmission requests other than said retransmission request requesting retransmission of said first selected frame;receiving a second selected frame at the transceiver subsequent to receiving said second plurality of frames, placing said second selected frame in said buffer, incrementing said timer and updating said pointer; anddetermining whether an expiration action should be taken on said timer based on said pointer.