US 11,706,714 B2
Communication apparatus and communication method for duty cycled low power multi-user transmission
Rojan Chitrakar, Singapore (SG); Lei Huang, Singapore (SG); and Yoshio Urabe, Nara (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Appl. No. 17/256,263
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
PCT Filed Aug. 29, 2019, PCT No. PCT/JP2019/033994
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/050141, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 2018-165250 (JP), filed on Sep. 4, 2018.
Prior Publication US 2021/0227471 A1, Jul. 22, 2021
Int. Cl. H04W 52/02 (2009.01); H04W 84/12 (2009.01)
CPC H04W 52/0235 (2013.01) [H04W 52/0248 (2013.01); H04W 84/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A communication apparatus comprising:
a receiver which, in operation, receives a wake-up radio (WUR) frame, during an on duration in a duty cycle, in a first channel assigned to the communication apparatus by an Access Point (AP), and receives a WUR Beacon frame in a second channel, a transmission of the WUR Beacon frame being scheduled at a target WUR beacon transmission time (TWBTT); and
a processor which, in operation, operates the duty cycle, wherein:
during a determined time from the TWBTT, any WUR frame is not transmitted in the first channel from the AP, and
the determined time varies depending on whether the first channel and the second channel are on the same or different frequency bands.