US 12,407,555 B2
Methods and systems for generating a low peak- to-average power ratio (PAPR) data and reference signal
Kiran Kumar Kuchi, Hyderabad (IN); Saidhiraj Amuru, Sangareddy (IN); and Sibgath Ali Khan Makandar, Sangareddy (IN)
Assigned to WISIG NETWORKS PRIVATE LIMITED, (IN)
Filed by WISIG NETWORKS PRIVATE LIMITED, Hyderabad (IN)
Filed on Feb. 29, 2024, as Appl. No. 18/591,805.
Application 18/591,805 is a continuation of application No. 18/091,527, filed on Dec. 30, 2022, granted, now 11,949,541.
Application 18/091,527 is a continuation of application No. 17/475,412, filed on Sep. 15, 2021, granted, now 11,558,231, issued on Jan. 17, 2023.
Application 17/475,412 is a continuation of application No. 16/816,394, filed on Mar. 12, 2020, granted, now 11,153,141, issued on Oct. 19, 2021.
Claims priority of application No. 201941010123 (IN), filed on Mar. 15, 2019; application No. 201941014203 (IN), filed on Apr. 9, 2019; application No. 201941049361 (IN), filed on Dec. 1, 2019; and application No. 202041006613 (IN), filed on Feb. 15, 2020.
Prior Publication US 2024/0356792 A1, Oct. 24, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04L 27/2613 (2013.01) [H04L 5/0048 (2013.01); H04L 27/2636 (2013.01); H04L 27/26412 (2021.01)] 23 Claims
OG exemplary drawing
 
1. A method for generating a signal in a communication network, the method comprising:
filtering, by a transmitter, a discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) data signal, and one of a pi/2 rotated Binary Phase Shift Keying (BPSK) reference signal (RS), 8 Phase Shift Keying (8-PSK) RS, and Zadoff-Chu (ZC) RS, using a data filter and a RS filter respectively, to produce filtered data signal and filtered RS, said RS filter having one to one relationship with the data filter; and
port mapping, by the transmitter, the filtered RS to a corresponding port assigned to the transmitter to obtain port mapped filtered RS, wherein the port mapped filtered RS comprises a first subset of non-zero locations comprising of the filtered RS values and a second subset of zero locations comprising of zero values.