US 11,659,489 B2
Communication apparatus and communication method for 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. 16/958,078
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
PCT Filed Jan. 9, 2019, PCT No. PCT/JP2019/000282
§ 371(c)(1), (2) Date Jun. 25, 2020,
PCT Pub. No. WO2019/139019, PCT Pub. Date Jul. 18, 2019.
Claims priority of provisional application 62/616,274, filed on Jan. 11, 2018.
Claims priority of application No. JP2018-084417 (JP), filed on Apr. 25, 2018.
Prior Publication US 2020/0322889 A1, Oct. 8, 2020
Int. Cl. H04W 52/02 (2009.01); H04W 72/04 (2023.01)
CPC H04W 52/0235 (2013.01) [H04W 72/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A communication apparatus, comprising:
control circuitry, and a receiver which is coupled to the control circuitry,
wherein the control circuitry negotiates with an Access Point (AP) a Wake-up radio (WUR) primary channel and a WUR channel by controlling the receiver to receive, from the AP:
a WUR operation element that indicates the WUR primary channel used by the AP for transmission of a first WUR PHY Protocol Data Unit (PPDU) including a WUR Beacon frame; and
a WUR Mode element that indicates the WUR channel used by the AP for transmission of a second WUR PPDU including a WUR Wake-up frame, wherein the WUR primary channel is a different type of channel than the WUR channel, and a frequency domain of the WUR primary channel does not overlap with a frequency domain of the WUR channel, and
wherein, based on the negotiated WUR primary channel and the WUR channel, the control circuitry controls the receiver to receive:
the second WUR PPDU including the WUR Wake-up frame on the WUR channel; and
the first WUR PPDU including the WUR Beacon frame on the WUR primary channel according to a target WUR Beacon transmission time (TWBTT).