The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2025
Filed:
Feb. 21, 2023
Parallel Wireless, Inc., Nashua, NH (US);
Praneet Chivate, Nashua, NH (US);
Juwendo Denis, Boston, MA (US);
Parallel Wireless, Inc., Nashua, NH (US);
Abstract
In one embodiment, a method is disclosed for port reduction, comprising: calculating, at a distributed unit (DU), beamforming weights based on received DMRS channel estimates; sending the calculated beamforming weights to a radio unit (RU); applying, at the RU, port reduction to DMRS symbols based on the calculated beamforming weights; compressing IQ data and received DMRS symbol data to compensate for an underlying bandwidth increase, thereby enabling beamforming at the RU. PUSCH data may be compressed. Beamforming weight calculations may be performed in the O-DU. Beamforming weight calculations may be provided to the L2 scheduler. BFP format compression may be performed. Channel information may be compressed for non-signal data. DMRS compression may be performed at the CU. The DMRS pattern may be received from the control plane. An equalizer weight calculation may be performed to merge a plurality of CSI estimates from different RUs for a given user to calculate joint equalization. The method may further comprise applying, at the RU, port reduction to both PUSCH and DMRS symbols. Beamforming may be performed for uplink, for downlink, or both.