| 摘要 |
A method and apparatus are provided for improving packet data communications in a point to multi-point communication system (1) having a primary node (BS) and secondary nodes (SU1-SU5). Data packets, which are to be transmitted from the primary node to one or more of the secondary nodes, are stored by the primary node. A time interval for transmitting a first data packet (111) from one of the secondary nodes to the primary node is established. After establishing the time interval for the transmission of the first data packet, a second data packet (113) is selected from the stored data packets. The transmission of the second data packet over a first downlink is timed so that an acknowledgement packet (115) acknowledging a receipt of the first data packet can be transmitted promptly over the first downlink from the primary node after the receipt of the first data packet. |
