US 12,089,254 B2
Bandwidth extension indication and negotiation in wireless communications
Kai Ying Lu, San Jose, CA (US); Yongho Seok, San Jose, CA (US); James Chih-Shi Yee, San Jose, CA (US); Chao-Chun Wang, San Jose, CA (US); and Jianhan Liu, San Jose, CA (US)
Assigned to MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
Filed on Feb. 23, 2023, as Appl. No. 18/113,227.
Application 18/113,227 is a continuation of application No. 17/350,483, filed on Jun. 17, 2021, granted, now 11,611,992.
Claims priority of provisional application 63/040,558, filed on Jun. 18, 2020.
Claims priority of provisional application 63/045,210, filed on Jun. 29, 2020.
Claims priority of provisional application 63/073,531, filed on Sep. 2, 2020.
Prior Publication US 2023/0199848 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/0816 (2024.01); H04L 1/00 (2006.01); H04W 80/02 (2009.01)
CPC H04W 74/0816 (2013.01) [H04L 1/0068 (2013.01); H04W 80/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
performing a bandwidth negotiation with a bandwidth extension indication; and
communicating wirelessly according to the bandwidth negotiation,
wherein the performing of the bandwidth negotiation comprises processing a control frame and a response frame carrying extreme-high-throughput (EHT) bandwidth signaling with a bit in a SERVICE field of the control frame set to either 1 to indicate an extended channel bandwidth of 320 MHz or 0 to indicate a bandwidth equal to or less than 160 MHz, and
wherein:
in an event that the bit is set to 1, two bits in first 7 bits of a scrambling sequence are set to either a fixed value or dynamically set to one of four values, and
in an event that the bit is set to 0, the two bits in the first 7 bits of the scrambling sequence are set to one of four values indicating a bandwidth of 20 MHz, 40 MHz, 80 MHz, or either 160 MHz or 80+80 MHz.