US 11,894,893 B2
Communication apparatus and communication method for channel estimation
Lei Huang, Singapore (SG); Yoshio Urabe, Nara (JP); and Rojan Chitrakar, Singapore (SG)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Dec. 19, 2022, as Appl. No. 18/068,390.
Application 18/068,390 is a continuation of application No. 17/277,682, granted, now 11,588,521, previously published as PCT/SG2019/050394, filed on Aug. 8, 2019.
Claims priority of application No. 10201808652U (SG), filed on Oct. 1, 2018.
Prior Publication US 2023/0120317 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/02 (2006.01); H04B 7/0452 (2017.01); H04B 7/0417 (2017.01)
CPC H04B 7/0452 (2013.01) [H04B 7/0417 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An integrated circuit for a communication apparatus, the integrated circuit comprising,
an output, which, in operation, outputs a signal, and
circuitry, which, is coupled to the output and, which, in operation, controls:
setting a number of non-legacy Long training field (LTF) symbols in an physical layer protocol data unit (PPDU) for multi-user transmission based on an initial number of non-legacy LTF symbols that is specified by a number of spatial streams (Nss) of the PPDU, wherein the number of non-legacy LTF symbols is set to be equal to or larger than the initial number of non-legacy LTF symbols; and
transmitting the PPDU,
wherein the Nss is larger than 8.