Signal field design for WLAN

摘要

A method of generating packets for transmission in a wireless communication system, wherein each packet includes a SIG field that includes a first SIG subfield, includes generating a data packet and a null data packet. Generating the data packet includes generating information bits of the first SIG subfield of the data packet and generating the data portion of the data packet. The information bits of the first SIG subfield of the data packet indicate, to a receiving device, a length corresponding to a data portion of the data packet. Generating the null data packet includes generating information bits of the first SIG subfield of the null data packet. The information bits of the first SIG subfield of the null data packet indicate, to a receiving device, a first physical layer (PHY) parameter value associated with the null data packet. The first PHY parameter value is not a length value.

主权项

1. A method of generating a packet for transmission in a wireless communication system, wherein the packet includes a signal (SIG) field having a first SIG subfield, the method comprising:
when the packet is of a data-type,
setting the first SIG subfield of the packet to a first value greater than or equal to a minimum value to indicate, to a receiving device, (i) that the packet is of the data-type, and (ii) a first length corresponding to a data portion of the packet, and wherein the first length is at least a minimum length and the minimum value corresponds to the minimum length, andgenerating the data portion of the packet; and when the packet is of a null data-type,
setting the first SIG subfield of the packet to a second value less than the minimum value to indicate, to the receiving device, (i) that the packet is of the null data-type, and (ii) a first physical layer (PHY) parameter value associated with the packet, and wherein the first PHY parameter value is not a length value.