US 11,729,815 B2
Random-access procedure
Henrik Sahlin, Mölnlycke (SE); Robert Baldemair, Solna (SE); Erik Dahlman, Stockholm (SE); and Stefan Parkvall, Bromma (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
Filed on Nov. 23, 2021, as Appl. No. 17/533,760.
Application 17/533,760 is a continuation of application No. 15/579,494, granted, now 11,191,102, previously published as PCT/EP2017/078563, filed on Nov. 8, 2017.
Claims priority of provisional application 62/421,005, filed on Nov. 11, 2016.
Prior Publication US 2022/0086900 A1, Mar. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 74/00 (2009.01); H04L 27/00 (2006.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01); H04W 72/541 (2023.01)
CPC H04W 74/006 (2013.01) [H04L 1/0003 (2013.01); H04L 1/0005 (2013.01); H04L 5/0007 (2013.01); H04L 5/0041 (2013.01); H04L 5/0053 (2013.01); H04L 5/0091 (2013.01); H04L 27/0012 (2013.01); H04W 72/23 (2023.01); H04W 72/541 (2023.01); H04W 74/004 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a base station, wherein the base station supports Discrete Fourier Transform Spread-Orthogonal Frequency Division Multiplexing, DFTS-OFDM and OFDM modulation formats for receiving transmissions, the method comprising:
selecting DFTS-OFDM for an uplink transmission:
transmitting a system information message comprising an indication of a modulation format to one or more of the plurality of wireless devices to use the selected modulation format for a random access message 3 transmission from the one or more wireless devices;
receiving a transmission from the wireless device according to the indicated modulation format and wherein the indicated modulation format applies to future data transmissions from the wireless device.