US 12,224,894 B2
Low-complexity resource-efficient demodulation reference for 5G and 6G
David E. Newman, Poway, CA (US); and R. Kemp Massengill, Palos Verdes, CA (US)
Filed by David E. Newman, Poway, CA (US); and R. Kemp Massengill, Palos Verdes, CA (US)
Filed on Mar. 6, 2023, as Appl. No. 18/117,519.
Application 18/117,519 is a continuation of application No. 17/979,814, filed on Nov. 3, 2022, granted, now 11,601,320.
Application 17/979,814 is a continuation of application No. 17/685,655, filed on Mar. 3, 2022, granted, now 11,502,893, issued on Nov. 15, 2022.
Claims priority of provisional application 63/313,380, filed on Feb. 24, 2022.
Claims priority of provisional application 63/272,352, filed on Oct. 27, 2021.
Claims priority of provisional application 63/234,911, filed on Aug. 19, 2021.
Claims priority of provisional application 63/220,669, filed on Jul. 12, 2021.
Claims priority of provisional application 63/214,489, filed on Jun. 24, 2021.
Claims priority of provisional application 63/210,216, filed on Jun. 14, 2021.
Prior Publication US 2023/0254198 A1, Aug. 10, 2023
Int. Cl. H04L 27/34 (2006.01); H04L 5/00 (2006.01); H04L 27/38 (2006.01)
CPC H04L 27/3863 (2013.01) [H04L 5/0048 (2013.01); H04L 27/345 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for a base station of a wireless network to communicate with reduced-capability user devices, the method comprising:
a) allocating a low-complexity channel for contention-based messaging with reduced-capability user devices;
b) receiving, on the low-complexity channel, a first message from a particular reduced-capability user device; and
c) transmitting, on the low-complexity channel, a second message to the particular reduced-capability user device;
d) wherein each reduced-capability user device comprises a wireless device that is incapable of performing one or more 5G protocols; and
e) wherein the low-complexity channel is a frequency band comprising subcarriers on which reduced-capability user devices are permitted to transmit messages without requesting an uplink grant from the base station.