Semi-persistent scheduling for traffic spurts in wireless communication

摘要

Techniques for efficiently assigning resources for spurts of traffic in a wireless communication system are described. The system may support semi-persistent and non-persistent resource assignments. A semi-persistent resource assignment is valid for as long as more data is sent within a predetermined time period of last sent data and expires if no data is sent within the predetermined time period. A non-persistent resource assignment is valid for a predetermined duration or a specific transmission. A semi-persistent resource assignment may be granted for an expected spurt of data to send via the communication link. For Voice-over-Internet Protocol (VoIP), a semi-persistent resource assignment may be granted for a voice frame in anticipation of a spurt of voice activity, and a non-persistent resource assignment may be granted for a silence descriptor (SID) frame during a period of silence.

主权项

1. An apparatus for wireless communication, comprising:
at least one processor configured to determine a resource assignment for a communication link and to exchange traffic data via the communication link based on the resource assignment, the resource assignment being valid for as long as more traffic data is sent within a predetermined time period of last sent traffic data, wherein data is sent in frames with hybrid automatic retransmission, and wherein an expected number of hybrid automatic retransmissions for each frame is shorter than an expected time interval between consecutive frames; and a memory coupled to the at least one processor.