| 摘要 |
A data packet communication system employs radio link control (RLC) trans mission between a transmitter and a receiver with an Automatic Repeat Reques t (ARQ) arrangement whereby polling of the receiver is accomplished with red uced amount of redundantly transmitted data, such as between an access node and terminal. Upon a polling event, such as emptying of a transmission buffe r of the transmitter, expiration of a polling timer, or reaching a radio lin k control (RLC) protocol data units (PDUs) count threshold, the transmitter sends a polling command to the receiver. This polling command is smaller tha n any of the RLC PDUs, which are conventionally resent with a polling bit se t to evoke a STATUS PDU from the receiver. With evolving communication stand ards tending toward larger PDUs, such as in excess of a kilobyte for HSPA+ ( High-Speed Packet Access Evolution) and 3GPP LTE (Long Term Evolution), this inefficiency can be of increasing impact.
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