Power saving in wireless communication

A method, comprising:

• receiving at a receiving device a packet from a sending device;
• detecting an indicium in the packet indicating that information already known or derivable by the receiving device has been omitted in the packet, and indicating that the receiving device must remain synchronized with sending device;
• and
• remaining synchronized with sending device.

A device, comprising:

• a transceiver;
• and
• a processor configured to control the operation of the transceiver to:
• determine, at the device having a wireless communication link with another device, that information to be sent in an upcoming transmission slot to the other device is already known or derivable by the other device;
• construct a shortened packet including a packet preamble field and an access address field including an indicium to signal to the other device that said information already known or derivable by the other device has been omitted in the shortened packet;
• and
• transmit the shortened packet to the other device.

A device, comprising:

• a transceiver;
• and
• a processor configured to control the operation of the transceiver to:
• receive at a device a packet from another device;
• detect an indicium in the packet indicating that information already known or derivable by the device has been omitted in the packet, and indicating that the device must remain synchronized with other device;
• and
• remain synchronized with the another device.

A computer readable medium, comprising:

• a computer readable medium configured to store program instructions, which when executed by a computer processor, perform the steps of:
• determining, at a sending device having a wireless communication link with a receive device, that information to be sent in an upcoming transmission slot to the receive device is already known or derivable by the receive device;
• constructing a shortened packet including a packet preamble field providing link synchronization information to the receive device for remaining synchronized with the sending device and an access address field including an indicium to signal to the receive device that said information already known or derivable by the receive device has been omitted in the shortened packet;
• and
• transmitting the shortened packet to the receive device.

A computer readable medium, comprising:

• a computer readable medium configured to store program instructions, which when executed by a computer processor, perform the steps of:
• receiving at a receive device a packet from a sending device;
• detecting an indicium in the packet indicating that information already known or derivable by the receive device has been omitted in the packet, and indicating that the receive device must remain synchronized with sending device;
• and
• remaining synchronized with sending device.