Multiplexing schemes for OFDMA

摘要

Methods and systems are provided for allocating resources including VoIP (voice over Internet Protocol) and Non-VoIP resources. In some embodiments, multiplexing schemes are provided for use with OFDMA (orthogonal frequency division multiplexing access) systems, for example for use in transmitting VoIP traffic. In some embodiments, various HARQ (Hybrid Automatic request) techniques are provided for use with OFDMA systems. In various embodiments, there are provided methods and systems for dealing with issues such as Handling non-full rate vocoder frames, VoIP packet jitter handling, VoIP capacity increasing schemes, persistent and non-persistent assignment of resources in OFDMA systems.

主权项

1. A method comprising:
transmitting full rate vocoder frames using an amount of OFDM time/frequency resource; for at least one non-full rate vocoder frame, transmitting a first sub-packet transmission of each non-full rate vocoder frame using the same amount of OFDM time/frequency resource as used for the full rate vocoder frames; matching vocoder frame size for each non-full rate vocoder frame to the amount of OFDMA time/frequency resource by employing an increased coding rate relative to a full rate frame, wherein the matching causes early termination of a HARQ retransmission; and using resources freed up by the early termination for allocation to other wireless stations.