Method and apparatus for saving power by using signal field of preamble

摘要

Certain aspects of the present disclosure relate to a technique for power saving at mobile stations in Very High Throughput (VHT) systems using signal field bits of a preamble with a limited transmission overhead. The present disclosure proposes a method of indicating to a destination through a preamble cyclic redundancy check (CRC) checksum that the destination may be the intended destination of a transmission packet. The present disclosure also proposes a method of indicating to a destination through a preamble CRC that the destination may not be the intended destination of a transmission packet. In this case, decoding of the received packet can be terminated in order to save power at a receiving device.

主权项

1. An apparatus for communications, comprising:
a first circuit configured to define a first signal field by altering a second signal field, wherein the alteration is based on at least one identifier, and wherein the alteration comprises:
dividing the second signal field into a plurality of sub-fields, andinserting a bit sequence corresponding to the at least one identifier between the plurality of subfields; a second circuit configured to generate a checksum for the first signal field; and a transmitter configured to transmit a packet comprising the second signal field with the checksum generated for the first signal field therein.