US 12,096,402 B2
Frequency band selection for integrated access and backhaul (IAB) in wireless communication networks
David Charles Jones, Bellevue, WA (US)
Assigned to T-MOBILE INNOVATIONS LLC, Overland Park, KS (US)
Filed by T-Mobile Innovations LLC, Overland Park, KS (US)
Filed on Dec. 27, 2021, as Appl. No. 17/562,543.
Prior Publication US 2023/0209506 A1, Jun. 29, 2023
Int. Cl. H04W 72/02 (2009.01); H04W 72/0453 (2023.01); H04W 72/27 (2023.01); H04W 72/51 (2023.01); H04W 72/541 (2023.01); H04W 72/542 (2023.01)
CPC H04W 72/02 (2013.01) [H04W 72/0453 (2013.01); H04W 72/27 (2023.01); H04W 72/51 (2023.01); H04W 72/541 (2023.01); H04W 72/542 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a wireless communication network to serve wireless User Equipment (UEs) over Integrated Access and Backhaul (IAB), the method comprising:
an IAB Mobile Terminal (MT) identifying its geographic location and determining at least a New Radio Licensed (NR-L) frequency band and a New Radio Unlicensed (NR-U) frequency band based on the geographic location;
the IAB MT scanning the NR-L frequency band and the NR-U frequency band and determining received signal strengths for the NR-L frequency band and the NR-U frequency band;
the IAB MT comparing the received signal strengths for the NR-L frequency band and the NR-U frequency band and selecting the NR-U frequency band based on the comparison;
the IAB MT wirelessly exchanging network signaling with a donor access node over the NR-U frequency band and establishing an IAB link with the donor access node over the NR-U frequency band;
a Radio Unit (RU) wirelessly exchanging user data with the wireless UEs and exchanging the user data with a Distributed Unit (DU);
the DU exchanging the user data with the RU and exchanging the user data with the IAB MT; and
the IAB MT wirelessly exchanging the user data with the donor access node over the IAB link using the NR-U frequency band.