Entropic Communications, Inc.

Wi-lan Inc.

Marvell International Limited

Other

Monument Bank of Intellectual Property, LLC

Wee Peng Goh

Ron Porat

Anton Monk

Lei Wang

Hari Sankar

Srikanth Gummadi

Danjie Pan

Brett Bernath

Yusuf Ozturk

Magnus Berggren

Ronald B Lee

Itzhak Gurantz

Yehuda Azenkot

Zvi Bernstein

Jason Beck

Raja Gosula

Yair Bourlas

Edward Warner

Ron Lee

Jose Marcelo Lima Duarte

Shue Lee Chang

Methods and apparatus are described for mitigating intercell interference in wireless communication systems utilizing substantially the same operating frequency band across multiple neighboring coverage areas. The operating frequency band may be shared across multiple neighboring or otherwise adjacent cells, such as in a frequency reuse one configuration. The wireless communication system can synchronize one or more resource allocation regions or zones across the multiple base stations, and can coordinate a permutation type within each resource allocation zone. The base stations can coordinate a pilot configuration in each of a plurality of coordinated resource allocation regions. Subscriber stations can be assigned resources in a coordinated resource allocation region based on interference levels. A subscriber station can determine a channel estimate for each of multiple base stations in the coordinated resource allocation region to mitigate interference.

Intercell interference mitigation

A BCN network with BCN modems that enable network wired devices to communicate over a typical home coaxial network that may include passive splitters and different types of coaxial cable.

Broadband local area network

The subject matter disclosed herein provides methods and apparatus for closed loop operation of a wireless system implementing multiple input multiple output (MIMO). In one aspect, there is provided a method. The method may include receiving a payload including channel estimation information. Moreover, one or more bits of the payload may be inserted into a subset of the tiles of a slot. The slot including the subset of the tiles carrying the one or more bits of the payload may be provided as part of a closed loop MIMO-based system. Related systems, apparatus, methods, and/or articles are also described.

Closed loop MIMO harmonized feedback

An output of a transmitter is looped back to an input of a receiver during a first time period while applying a frequency offset between the transmitter and the receiver. A first imbalance between an in-phase (I) branch and a quadrature-phase (Q) branch in the receiver is determined based on a signal received at the receiver during the first time period. The receiver is calibrated based on the determined first imbalance. After calibrating the receiver, the output of the transmitter is looped back to the input of the receiver during a second time period during which the frequency offset is not applied. A second imbalance between an I branch in and a Q branch in the transmitter is determined based on a signal received at the receiver during the second time period while the frequency offset is not applied. The transmitter is calibrated based on the determined second imbalance.

Method and apparatus for IQ imbalance estimation

A machine implemented method includes determining a signal modulation for each of a plurality of profiles; generating a first indicator indicating a signal modulation determined for a first profile in the plurality of profiles; generating a second indicator indicating a relationship between the signal modulation for the first profile and the signal modulation for each of the other profiles; notifying at least one node of the first and second indicators.

Device and method for reducing modulation profile memory size

This invention discloses an optimum form maximum likelihood MIMO detector (SFS ML Detector) that computes the LLR of the most likely received bit sequence from the received signal y, which consist of multiple signal stream from a MIMO channel H and an estimate of H. Through 5 simple steps of QR factorization, computation of partial Euclidean distance, sorting of the partial Euclidean distance, selection of surviving hypothesis by a set of algorithmic rule and computation of the full Euclidean distance of the survivors, and computation of the maximum likelihood from the surviving full Euclidean distance, the LLR of the received bit sequence can be obtained with a significantly lower number of computation and comparison than that is implied in the theoretical form of the maximum likelihood (ML) detector. There is no loss in performance of the SFS ML detector from the theoretical ML detector.

Full search MIMO detector for recovering single or multiple data stream in a multiple antenna receiver

In an orthogonal frequency division multiplex (OFDM) communication network, a node transmits an echo profile probe to other nodes in the network. The echo profile probe is a message that allows characterization of the unique echo profile through the communication channel between each node pair. The echo profile is used to calculate the cyclic prefix length needed for optimum communication from one node to the other.

Echo profile probe

A physical layer transmitter that communicates between nodes in a broadband cable network by transmitting and receiving packets containing data and control information. Packets are constructed by the physical layer transmitter and transmitted to one or more receiving nodes that are capable of processing the packets. Packets are directed to specific nodes utilizing link layer control data. The packets may also contain control information that may include formatting, encoding and modulation parameters that are capable of being processed by the appropriate receiving nodes. The physical layer transmitter allows node-to-node communication within a broadband cable network and each node in the network is capable of communicating with every other node in the network.

Physical layer transmitter for use in a broadband local area network

Growing community of inventors

Temecula, CA, United States of America

Wee Peng Goh