US 12,335,998 B2
Communication apparatus and communication method
Takashi Iwai, Ishikawa (JP); Yoshio Urabe, Nara (JP); and Tomohumi Takata, Ishikawa (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Apr. 10, 2024, as Appl. No. 18/631,596.
Application 18/631,596 is a continuation of application No. 18/320,011, filed on May 18, 2023, granted, now 11,985,698.
Application 18/320,011 is a continuation of application No. 17/353,375, filed on Jun. 21, 2021, granted, now 11,696,324, issued on Jul. 4, 2023.
Application 17/353,375 is a continuation of application No. 16/473,368, granted, now 11,071,140, issued on Jul. 20, 2021, previously published as PCT/JP2018/003944, filed on Feb. 6, 2018.
Claims priority of application No. 2017-030217 (JP), filed on Feb. 21, 2017.
Prior Publication US 2024/0260081 A1, Aug. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/00 (2009.01); H04W 74/02 (2009.01); H04W 84/12 (2009.01)
CPC H04W 74/006 (2013.01) [H04W 74/02 (2013.01); H04W 84/12 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A communication apparatus, comprising:
a receiver which, in operation, receives a trigger frame comprising a first User Information field, a second User Information field, and a third User Information field, the first User Information field comprising a first terminal ID subfield and a first Resource Unit (RU) Allocation subfield, the second User Information field comprising a second terminal ID subfield and a second RU Allocation subfield, and the third User Information field comprising a third terminal ID subfield and a third RU Allocation subfield,
wherein a first value used for a terminal ID is set to the first terminal ID subfield for Scheduled Access of a station associated with an access point, and all of User Information fields for Scheduled Access including the first User Information field precede all of User Information fields for Random Access including the second User Information field and the third User Information field in the trigger frame,
a second value other than values used for a terminal ID is set to the second terminal ID subfield for Random Access of a station associated with the access point, the second RU Allocation subfield indicates a first starting RU of one or more first contiguous Random Access RUs (RA-RUs), and the second User Information field further comprises a first number of RA-RU subfield indicating a first number of RUs in the one or more first contiguous RA-RUs,
a third value other than values used for a terminal ID is set to the third terminal ID subfield for Random Access of a station unassociated with the access point, the third RU Allocation subfield indicates a second starting RU of one or more second contiguous RA-RUs, and the third User Information field further comprises a second number of RA-RU subfield indicating a second number of RUs in the one or more second contiguous RA-RUs; and
at least one antenna,
wherein, if the first value is used for the terminal ID specifying the communication apparatus, the at least one antenna transmits a scheduled uplink signal using an RU indicated by the first RU Allocation subfield,
otherwise,
in a first case where the communication apparatus is associated with the access point, the at least one antenna transmits a random access uplink signal using at least one of the one or more first contiguous RA-RUs,
in a second case where the communication apparatus is unassociated with the access point, the at least one antenna transmits a random access uplink signal using at least one of the one or more second contiguous RA-RUs.