Voice activity detection in communication devices for power saving

A method comprising:

• receiving, at a first communication device, a radio frequency (RF) signal including a plurality of packets from a second communication device of a communication network;
• determining that the plurality of packets include audio data;
• determining whether the audio data includes voice information;
• switching to a power save mode at the first communication device based, at least in part, on determining that the audio data does not include voice information;
• processing a subset of a plurality of additional packets received at the first communication device from the second communication device to determine whether the subset of the additional packets include voice information and whether to exit the power save mode;
• and
• discarding a remainder of the additional packets in response to determining that audio data associated with the subset of the additional packets does not include voice information.

A first communication device comprising:

• a transceiver unit operable to receive a radio frequency (RF) signal including a plurality of packets from a second communication device of a communication network;
• and
• a power save unit of the transceiver unit, the power save unit operable to:
• determine that the plurality of packets include audio data;
• determine a power level of each of a plurality of communication frequencies based, at least in part, on the audio data, wherein the plurality of communication frequencies are associated with an operating frequency band of the first communication device;
• determine whether the audio data includes voice information based, at least in part, on comparing the power level of each of the plurality of communication frequencies against a corresponding power level threshold;
• and
• switch to a power save mode at the first communication device based, at least in part, on determining that the audio data does not include voice information.

A non-transitory machine-readable storage medium having instructions stored therein, which when executed by a processor causes the processor to perform operations that comprise:

• receiving a radio frequency (RF) signal including a plurality of packets at a first communication device from a second communication device of a communication network;
• determining that the plurality of packets include audio data;
• determining a power level of each of a plurality of communication frequencies based, at least in part, on the audio data, wherein the plurality of communication frequencies are associated with an operating frequency band of the first communication device;
• determining whether the audio data associated with the plurality of packets includes voice information based, at least in part, on comparing the power level of each of the plurality of communication frequencies against a corresponding power level threshold;
• and
• switching to a power save mode at the first communication device based, at least in part, on determining that the audio data does not include voice information.

A first communication device comprising:

• means for determining that a plurality of packets received in a radio frequency (RF) signal from a second communication device include audio data;
• means for determining a power level of each of a plurality of communication frequencies based, at least in part, on the audio data, wherein the plurality of communication frequencies are associated with an operating frequency band of the first communication device;
• means for determining whether the audio data associated with the plurality of packets includes voice information based, at least in part, on comparing the power level of each of the plurality of communication frequencies against a corresponding power level threshold;
• and
• means for switching to a power save mode at the first communication device based, at least in part, on determining that the audio data does not include voice information.