US 10,200,096 Beamforming using predefined spatial mapping matrices

5 defendants · 5 suits · updated September 14, 2026

Also cited as U.S. Patent No. 10,200,096 · US10200096B2 · US 10,200,096 B2 · 10200096 · the '096 patent

Velocity Communication Technologies, LLC has filed 5 patent-infringement suits on US 10,200,096, "Beamforming using predefined spatial mapping matrices" since July 30, 2026, 3 of them in the E.D. Tex., against 5 distinct defendants including Arcadyan Technology Corporation, Calix, Inc. and Sercomm Corporation. The patent was granted February 5, 2019 on a priority date of October 15, 2007. Its abstract opens: "In one or more aspects data packets are transmitted to a receiver using predefined spatial mapping matrices, a quality of reception is received from the receiver for each of the predefined spatial mapping matrices, and one of the predefined spatial mapping…" The examiner cited 10 references during prosecution.

Assignee: Velocity Communication Technologies LLC
Priority date: October 15, 2007
Granted: February 5, 2019
Expires: October 15, 2027
Status: Active
Claims: 20 (3 independent)
Inventors: Hongyuan Zhang, Rohit U. Nabar
Full text: Google Patents

The suits

5 cases · E.D. Tex. (3) · D. Del. (2)

Filed	Defendant	Plaintiff	Court	Docket
2026-07-30	Arcadyan Technology Corporation	Velocity Communication Technologies, LLC	E.D. Tex.	5:26-cv-00102
2026-07-30	Calix, Inc.	Velocity Communication Technologies, LLC	D. Del.	1:26-cv-00937
2026-07-30	Sercomm Corporation	Velocity Communication Technologies, LLC	E.D. Tex.	5:26-cv-00101
2026-07-30	TCL Electronics Holdings Limited	Velocity Communication Technologies, LLC	E.D. Tex.	5:26-cv-00103
2026-07-30	Vistance Networks, Inc.	Velocity Communication Technologies, LLC	D. Del.	1:26-cv-00944

Docket links open the public record on CourtListener. Filing dates are the complaint's.

Independent claims

What is actually asserted, verbatim.

Claim 1

1. A method comprising: transmitting data packets to a receiver, the transmitting using predefined spatial mapping matrices stored in a memory and continuing until each of the predefined spatial mapping matrices is used; receiving, from the receiver, a quality of reception for each the predefined spatial mapping matrices; comparing the quality of reception for each of the predefined spatial mapping matrices; selecting, based on a highest quality of reception, one of the predefined spatial mapping matrices; and transmitting, using the selected predefined spatial mapping matrix, additional data packets to the receiver.

Claim 8

8. A method comprising: receiving data packets at a receiver, the data packets transmitted using predefined spatial mapping matrices, the receiving performed without channel training; determining a quality of reception for each of the predefined spatial mapping matrices used to transmit the data packets; and providing feedback to a transmitter, the feedback indicating a predefined spatial mapping matrix with a highest quality of reception.

Claim 13

13. An apparatus comprising: one or more antennas configured for directional transmissions; memory configured to maintain a codebook having predefined spatial mapping matrices; and a transmission controller configured to: directionally transmit, via the one or more antennas, data packets to a receiver, the transmitting using the predefined spatial mapping matrices and performed without a sounding procedure; select, from the predefined spatial mapping matrices used, a predefined spatial mapping matrix with a highest reception quality metric; and transmit, using the selected predefined spatial mapping matrix, additional data packets to the receiver.

Art before the examiner

36 references of record, 10 cited by the examiner.

Everything listed here was before the Office and is what a challenge must go beyond. Art the examiner never saw is where an invalidity search starts.

Examiner-cited

US20050063378A1 — Incremental redundancy transmission for multiple parallel channels in a MIMO communication system (Tamer Kadous)
US20060190245A1 — System for generating a wideband signal from a received narrowband signal (Bernd Iser)
US20060292990A1 — Communications systems including adaptive antenna systems and methods for inter-system and intra-system interference reduction (Karabinis Peter D)
US20070049218A1 — Precoding and SDMA support (Qualcomm Incorporated)
US20070206504A1 — Method and apparatus for calibration and channel state feedback to support transmit beamforming in a mimo system (Interdigital Technology Corporation)
US20080014870A1 — Method And System For Explicit Feedback With Sounding Packet For Wireless Local Area Networks (WLAN) (Joonsuk Kim)
US20080108310A1 — Closed Loop Mimo Systems and Methods (Wen Tong)
US20080299917A1 — Closed-loop multiple-input-multiple-output scheme for wireless communication based on hierarchical feedback (Angeliki Alexiou)
US20080304464A1 — Low complexity precoding matrix selection (Texas Instruments Incorporated)
US20090290563A1 — Antenna/Beam Selection Training in MIMO Wireless LANs with Different Sounding Frames (Daqing Gu)

Applicant-cited and other (26)

WO2001029986A1 — Optimising link quality by space and time interleaving
US20060209980A1 — Beam and power allocation method for MIMO communication system
WO2006138337A1 — Robust rank prediction for a mimo system
US20070155336A1 — Apparatus and method for eliminating multi-user interference
US20070189148A1 — Signal transmitting method (variants) and device for carrying out said method
US20070249402A1 — Orthogonal resource reuse with sdma beams
US20070253501A1 — Wireless communication system, wireless communication apparatus and wireless communication method
US20080004076A1 — Base station apparatus and termnal apparatus
US20080080637A1 — System and method for performing precoding in a wireless communication system
US20080117867A1 — Techniques to provide physical resource allocation using a tree-based structure and communicate a channel quality indicator
US20080219373A1 — Codebook selection for transmit beamforming
US20080292012A1 — Multiple-input multiple-output communication method and multiple-input multiple-output communication system of enabling the method
US20090097395A1 — Beamforming Using Predefined Spatial Mapping Matrices
US20090129286A1 — Reducing inter-ss interference
US20090232245A1 — Multi-resolution beamforming based on codebooks in mimo systems
US20090274225A1 — Multi-resolution precoding codebook
US20090274230A1 — Progressive Feedback For High Resolution Limited Feedback Wireless Communication
US20090310586A1 — Cooperative Wireless Networks
US7746936B2 — Method and device for optimizing codebook for quantized precoder by using steepest descent algorithm
US20100189079A1 — Method, mobile station and base station for transmitting data in mobile communication system
US20110007685A1 — System and Method for Downlink Channel Sounding in Wireless Communications Systems
US7961640B2 — Method and apparatus for codebook exchange in a multiple access wireless communication system
US7995528B1 — Precoding with multi-user codebooks
US8125884B1 — Apparatus for pre-coding using multiple codebooks and associated methods
US20120281659A1 — Method and device for feeding back spatial channel state
US8462716B1 — Method and apparatus for using multiple codebooks for wireless transmission to a plurality of users in a cell

Classification

H04B7/0456primary — Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
H04B7/0417 — Feedback systems
H04B7/0617 — Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
H04B7/0626 — Channel coefficients, e.g. channel state information [CSI]
H04B7/0632 — Channel quality parameters, e.g. channel quality indicator [CQI]
H04L1/0001 — Systems modifying transmission characteristics according to link quality, e.g. power backoff

Family

US10200096B2 — B2 (2019)
US9621240B1 — B1 (2017)
US8213870B2 — B2 (2012)
US20170187436A1 — A1 (2017)
US9083401B2 — B2 (2015)
US20090097395A1 — A1 (2009)
US20140146909A1 — A1 (2014)
US8644765B1 — B1 (2014)
2 foreign family members: WO2009051748A3, WO2009051748A2

Abstract

In one or more aspects data packets are transmitted to a receiver using predefined spatial mapping matrices, a quality of reception is received from the receiver for each of the predefined spatial mapping matrices, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on a highest quality of reception.

Also asserted by Velocity Communication Technologies, LLC

US 8,213,870 — Beamforming using predefined spatial mapping matrices (5 defendants)
US 8,238,832 — Antenna optimum beam forming for multiple protocol coexistence on a wireless device (5 defendants)
US 8,260,213 — Method and apparatus to adjust a tunable reactive element (5 defendants)
US 8,265,573 — Wireless subscriber communication unit and method of power control with back-off therefore (5 defendants)
US 8,270,343 — Broadcasting of textual and multimedia information (5 defendants)
US 8,644,765 — Beamforming using predefined spatial mapping matrices (5 defendants)
US 8,675,570 — Scalable OFDM and OFDMA bandwidth allocation in communication systems (5 defendants)
US 9,083,401 — Beamforming using predefined spatial mapping matrices (5 defendants)
US 9,444,577 — Calibration correction for implicit beamformer using an explicit beamforming technique in a wireless MIMO communication system (5 defendants)
US 9,596,648 — Unified beacon format (5 defendants)

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This page is assembled from public records — federal court dockets and the patent's own file — and is updated as the case list changes. It states what the record shows and is not an opinion on the validity or infringement of any claim. Patent data via Google Patents; docket data via CourtListener.