Communicating latency-sensitive data over a wireless data link

摘要

A method and apparatus are described for communicating data frames over a wireless data link between an access point and a transceiver in an electronic device. In the described embodiments, a processing subsystem in the electronic device is configured to determine a frame interval based on a codec used to generate data contained in data frames. The transceiver is configured to use the frame interval as a timing reference for transitioning the transceiver between a constant awake mode and a power save mode so that during each of one or more frame intervals, the transceiver: transmits a data frame to the access point that indicates that the power save mode is disabled, enters the constant awake mode, receives one or more frames from the access point, transmits a frame to the access point that indicates that the power save mode is enabled, and enters the power save mode.

主权项

1. A method for communicating frames over a wireless data link between an access point and a transceiver on an electronic device, comprising:
in the electronic device, determining a frame interval based on a codec used to encode or decode data contained in the frames, the determining comprising setting the frame interval to a value that is a multiple of a generation interval at which the codec generates packets, wherein the value is less than a reconstruction lag threshold; using the frame interval as a timing reference for transitioning the transceiver between a constant awake mode and a power save mode by, during each of one or more frame intervals,
putting the transceiver into the constant awake mode;transmitting a first frame from the transceiver to the access point that indicates that the power save mode is disabled;receiving one or more incoming frames from the access point using the transceiver;transmitting a second frame from the transceiver to the access point that indicates that the power save mode is enabled; andputting the transceiver into the power save mode.