US 12,470,941 B2
Systems and methods for concurrent spectrum usage within actively used spectrum
Stephen G. Perlman, Palo Alto, CA (US); Antonio Forenza, San Francisco, CA (US); Mario Di Dio, San Francisco, CA (US); and Fadi Saibi, Sunnyvale, CA (US)
Assigned to Rearden, LLC, Mountain View, CA (US)
Filed by Rearden, LLC, Mountain View, CA (US)
Filed on Nov. 17, 2021, as Appl. No. 17/528,811.
Application 17/528,811 is a continuation of application No. 14/672,014, filed on Mar. 27, 2015, granted, now 11,190,947.
Claims priority of provisional application 61/980,479, filed on Apr. 16, 2014.
Prior Publication US 2022/0078627 A1, Mar. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 16/14 (2009.01); H04B 7/26 (2006.01); H04L 5/00 (2006.01); H04L 5/14 (2006.01); H04W 28/16 (2009.01); H04W 88/00 (2009.01); H04W 88/06 (2009.01); H04W 88/10 (2009.01)
CPC H04W 16/14 (2013.01) [H04B 7/2615 (2013.01); H04L 5/0005 (2013.01); H04L 5/14 (2013.01); H04L 5/1469 (2013.01); H04W 28/16 (2013.01); H04W 88/00 (2013.01); H04W 88/06 (2013.01); H04L 5/001 (2013.01); H04L 5/0035 (2013.01); H04W 88/10 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A system of two overlapping wireless networks comprising:
a first wireless network in ultra high frequency (“UHF”) spectrum configured in frequency division duplex (“FDD”) mode comprising a first plurality of wireless base stations (“BTSs”) within a first coverage area;
a second wireless network in microwave spectrum comprising a second plurality of BTSs overlapping the first coverage area;
wherein the first and second wireless networks are configured to operate utilizing carrier aggregation (“CA”);
wherein multiple simultaneous non-interfering orthogonal frequency-division multiple access (“OFDMA”) data streams within a same frequency band between the first wireless network and a first plurality of user equipment devices (“UEs”) are delivered; and
wherein the second wireless network operates in time division duplex (“TDD”) mode in a same spectrum as the FDD downlink of the first wireless network.