US 12,250,720 B2
Methods for efficient use of unlicensed spectrum
Tai Do, Lund (SE); Peter Alriksson, Hörby (SE); and Thomas Nilsson, Malmö (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Oct. 16, 2023, as Appl. No. 18/487,754.
Application 18/487,754 is a continuation of application No. 17/167,502, filed on Feb. 4, 2021, granted, now 11,792,849.
Application 17/167,502 is a continuation of application No. 16/330,807, granted, now 10,932,293, issued on Feb. 23, 2021, previously published as PCT/EP2018/085979, filed on Dec. 19, 2018.
Claims priority of provisional application 62/615,675, filed on Jan. 10, 2018.
Prior Publication US 2024/0049282 A1, Feb. 8, 2024
Int. Cl. H04W 74/08 (2024.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 16/14 (2009.01); H04W 72/0453 (2023.01); H04W 74/0808 (2024.01)
CPC H04W 74/0808 (2013.01) [H04L 5/0092 (2013.01); H04L 27/2607 (2013.01); H04W 16/14 (2013.01); H04W 72/0453 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method performed by a transmit node to perform a transmission in a frequency spectrum requiring Listen-Before-Talk, LBT, comprising:
performing an LBT procedure for a plurality of channels each comprising a group of contiguous Physical Resource Blocks (PRBs) within a transmit bandwidth of the transmit node to thereby determine a subset of the plurality of channels that are available for transmission, wherein resources in the group of contiguous PRBs are divided into a plurality of interlaces; and
transmitting a transmission using at least one of the plurality of interlaces in a subset of the resources that correspond to the subset of the plurality of channels determined to be available, wherein the transmitting comprises one of:
transmitting the transmission concurrently on the subset of the plurality of channels independent of whether the subset of the plurality of channels is adjacent;
merging at least two adjacent channels among the subset of the plurality of channels into a merged channel and transmitting the transmission on the merged channel; and
merging the at least two adjacent channels among the subset of the plurality of channels into the merged channel and transmitting the transmission concurrently on the merged channel and at least one of the subset of the plurality of channels non-adjacent to the merged channel.