Patent ID: 11882596
Assignee: MEDIATEK SINGAPORE PTE. LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method of transmitting data in a wireless network, the method comprising:
transmitting a request to send (RTS) frame from a wireless station (STA) for receipt by a wireless access point (AP), the RTS frame comprising:
a subchannel bitmap indicating allowed subchannels and disallowed subchannels for transmitting a clear to send (CTS) frame; and
a bandwidth control field comprising: a preamble puncture enabled subfield for indicating an enabled status for preamble puncturing; and a mode subfield for indicating between a static bandwidth indication and a dynamic bandwidth indication; and

receiving the CTS frame at the wireless STA from the wireless AP on an 80 MHz channel comprising a 20 MHz subchannel indicated in the subchannel bitmap as a particular disallowed subchannel, wherein the CTS frame comprises a 20 MHz punctured preamble to avoid transmitting on the 20 MHz subchannel.