US 12,407,456 B2
Communication apparatus and communication method
Lei Huang, Singapore (SG); Rojan Chitrakar, Singapore (SG); and Yoshio Urabe, Nara (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 Aug. 31, 2023, as Appl. No. 18/459,223.
Application 18/459,223 is a continuation of application No. 17/339,756, filed on Jun. 4, 2021, granted, now 11,784,767.
Application 17/339,756 is a continuation of application No. 16/306,402, granted, now 11,057,172, issued on Jul. 6, 2021, previously published as PCT/JP2017/024288, filed on Jul. 3, 2017.
Claims priority of application No. 2016-144910 (JP), filed on Jul. 22, 2016.
Prior Publication US 2023/0421317 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04W 28/06 (2009.01); H04B 7/0452 (2017.01)
CPC H04L 5/0037 (2013.01) [H04L 5/0023 (2013.01); H04L 5/0094 (2013.01); H04W 28/06 (2013.01); H04B 7/0452 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication apparatus comprising:
circuitry, which, in operation, generates an uplink (UL) single-user (SU) partial bandwidth transmission packet using a first format that contains a first preamble and a data field, wherein the first preamble includes a high efficiency signaling B (HE-SIG-B) field containing resource unit (RU) allocation information indicating one of a plurality of RU arrangements and includes a plurality of user fields; and
a transmitter, which, in operation, transmits the UL SU partial bandwidth transmission packet to an access point (AP),
wherein:
the one of the plurality of RU arrangements indicates a plurality of RUs which respectively correspond to the plurality of user fields, and one RU of the plurality of RUs is an RU allocated to the AP and other RU(s) of the plurality of RUs are RU(s) unallocated to the AP;
the first format is also used for a downlink (DL) multi-user (MU) transmission, and a second format that does not include the HE-SIG-B field is used for a UL SU non-partial bandwidth transmission packet; and
the plurality of RU arrangements indicate different numbers of the plurality of user fields, and the one of the plurality of RU arrangements indicated by the RU allocation information is selected such that a smallest number of the different numbers of the plurality of user fields is selected.