MAC architecture in wireless communication systems supporting H-ARQ

摘要

A medium access control-high speed (MAC-hs) comprises a hybrid automatic repeat request (H-ARQ) device configured to receive data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH). The H-ARQ device generates an acknowledgement (ACK) or negative acknowledgement (NACK) for each said data block received. Each received data block having a transmission sequence number. The H-ARQ device receives a new transmission instead of a pending retransmission at any time. At least one reordering device has an input configured to receive an output of the H-ARQ device and the at least one reordering device configured to reorder the received data blocks based on each received data block's transmission sequence number (TSN). Received data blocks are immediately forwarded for processing for higher layers when the received data blocks are received in sequence.

主权项

1. A Node B base station comprising:
a medium access control-high speed (MAC-hs) entity comprising: a hybrid automatic repeat request (H-ARQ) device configured to transmit data blocks over a wideband-code division multiple access (W-CDMA) high speed-downlink shared channel (HS-DSCH) and to receive an acknowledgement (ACK) or negative acknowledgement (NACK) for each said data block transmitted, each transmitted data block associated with a Quality of Service (QoS) priority class; and wherein the H-ARQ device is configured to transmit a new transmission having a first QoS priority class instead of a pending transmission having a second QoS priority class lower than the first QoS priority class.