US 11,870,541 B1
Feeder link for transparent NTN nodes
Shahzada Basharat Rasool, Naperville, IL (US); Tzu-Chung Hsieh, Hoffman Estates, IL (US); and Rapeepat Ratasuk, Iverness, IL (US)
Assigned to Nokia Solutions and Networks Oy, Espoo (FI)
Filed by Nokia Solutions and Networks Oy, Espoo (FI)
Filed on Jun. 20, 2023, as Appl. No. 18/211,634.
Claims priority of application No. 20225562 (FI), filed on Jun. 21, 2022.
Int. Cl. H04B 7/185 (2006.01)
CPC H04B 7/18513 (2013.01) 12 Claims
OG exemplary drawing
 
1. Apparatus, comprising:
one or more processors; and
one or more non-transitory memories storing instructions that, when executed with the one or more processors, cause the apparatus to perform:
receiving, on a feeder link, a downlink feeder signal comprising, in time domain, feeder link downlink slots having, in frequency domain, a feeder link bandwidth with a feeder link subcarrier spacing;
mapping the feeder link downlink slots onto a respective slot-subband in a respective service link downlink slot according to a rule; and
transmitting, on plural service links, a respective downlink service signal, wherein
the downlink service signals comprise, in the time domain, respective one or more of the service link downlink slots;
the service link downlink slots comprise, in the frequency domain, m of the slot-subbands with m being a positive integer;
in the service link downlink slots, the m slot-subbands are arranged, in the frequency domain, with a same bandwidth and with a service link subcarrier spacing; and
in the service link downlink slots, in the frequency domain, the m slot-subbands do not overlap, are continuous, and cover an entire service link bandwidth of the respective service link downlink slot; wherein
the feeder link downlink slots have a feeder link slot duration;
the service link downlink slots have a service link slot duration longer than the feeder link slot duration;
the feeder link subcarrier spacing is larger than the service link subcarrier spacing;
the feeder link slots comprise respective symbols; and
the slot-subbands comprise the symbols of the feeder link downlink slot mapped onto the respective slot-subband.