US 12,470,267 B2
Apparatus and methods for uplink MIMO enhancement in wireless systems
Amitav Mukherjee, Elk Grove, CA (US)
Assigned to CHARTER COMMUNICATIONS OPERATING, LLC, St. Louis, MO (US)
Filed by Charter Communications Operating, LLC, St. Louis, MO (US)
Filed on Aug. 9, 2021, as Appl. No. 17/397,616.
Application 17/397,616 is a continuation of application No. 15/931,290, filed on May 13, 2020, granted, now 11,088,741, issued on Aug. 10, 2021.
Prior Publication US 2021/0391900 A1, Dec. 16, 2021
Int. Cl. H04B 7/0456 (2017.01)
CPC H04B 7/0473 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method of operating a millimeter wave (mmWave)-enabled wireless user device, within a wireless network comprising at least one wireless access node, the method comprising:
receiving, from the at least one wireless access node and via an array of multiple antenna elements of the mmWave-enabled wireless user device, data relating to configuration of (i) the mmWave-enabled wireless user device for a maximum number of data layers supported for transmission of data in an UL (uplink) wireless channel, and (ii) one or more transmission protocols for the transmission of the data in the UL wireless channel;
configuring the mmWave-enabled wireless user device according to the received data, the configuring comprising configuring the mm Wave-enabled wireless user device to a transform precode configuration, which utilizes at least two of a plurality of spatial multiplexing layers;
transmitting data on the UL wireless channel using the at least two of the plurality of spatial multiplexing layers in the transform precode configuration and the one or more transmission protocols from the mmWave-enabled wireless user device to the at least one wireless access node;
determining that the at least one wireless access node has invoked the transform precode configuration; and
based on the determining, modifying the configuration of the mmWave-enabled wireless user device to a non-transform precode configuration, wherein the mmWave-enabled wireless user device is enabled to maintain utilization of the at least two of the plurality of spatial multiplexing layers while in the non-transform precode configuration.