US 12,457,625 B2
Radio frequency allocation among wireless user equipment and integrated access and backhaul mobile terminations
David Z. Sun, Broadlands, VA (US); Zheng Fang, McLean, VA (US); Zheng Cai, Fairfax, VA (US); and Yu Wang, Fairfax, VA (US)
Assigned to T-MOBILE INNOVATIONS LLC, Overland Park, KS (US)
Filed by T-MOBILE INNOVATIONS LLC, Overland Park, KS (US)
Filed on Jul. 17, 2023, as Appl. No. 18/353,262.
Application 18/353,262 is a continuation of application No. 17/237,832, filed on Apr. 22, 2021, granted, now 11,751,219.
Prior Publication US 2023/0362958 A1, Nov. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/29 (2023.01); H04B 7/155 (2006.01); H04W 60/06 (2009.01); H04W 72/0453 (2023.01); H04W 88/14 (2009.01)
CPC H04W 72/29 (2023.01) [H04B 7/155 (2013.01); H04W 60/06 (2013.01); H04W 72/0453 (2013.01); H04W 88/14 (2013.01)] 20 Claims
OG exemplary drawing
 
13. A wireless access node to serve an Integrated Access and Backhaul Mobile Termination (IAB MT), the wireless access node comprising:
a Radio Unit (RU) and a Distributed Unit F1 Application Part (DU F1AP);
the RU configured to wirelessly receive an IAB request from the IAB MT over a frequency channel and signal the IAB request to the DU F1AP, wherein the IAB request indicates an activation of the IAB MT;
the DU F1AP configured to determine an IAB subchannel in the frequency channel for the IAB MT responsive to the IAB request and signal the IAB subchannel in the frequency channel to the RU, wherein the IAB subchannel comprises adjacent resource blocks in the frequency channel;
the RU further configured to wirelessly signal the IAB subchannel to the IAB MT;
the RU further configured to wirelessly exchange IAB data with the IAB MT over the IAB subchannel;
the RU further configured to wirelessly receive an IAB deregistration from the IAB MT and signal the IAB deregistration to the DU F1AP, wherein the IAB deregistration indicates a deactivation of the IAB MT; and
the DU F1AP further configured to de-allocate the IAB subchannel in the frequency channel responsive to the IAB deregistration.