At&t Corp.

Samsung Electronics Co., Ltd.

At&t Mobility Ii LLC

At&t Intellectual Property Ii, L.p.

At&t Wireless Services, Inc.

Huawei Technologies Co., Limited

At&t Intellectual Property I, L.p.

Harvard College

Other

Nortel Networks Corporation

Future Wei Technologies, Inc.

Cingular Wireless Ii, LLC

Intel Corporation

Mitsubishi Electric Research Laboratories, Inc.

Gogo LLC

Vahid Tarokh

Siavash Alamouti

Hamid Jafarkhani

Nambirajan Seshadri

Ayman Fawzy Naguib

Yang-Seok Choi

Arthur Robert Calderbank

Yung-Soo Kim

Hujun Yin

Jae Hyun Kim

James S Brennan

Eduardo F Casas

Robert J Conley

Patrick Poon

William J Crilly, Jr

Praveen Mehrotra

Marcus Da Silva

Bobby Jose

Peiying Zhu

Titus Lo

Robert Raymond Miller, Ii

Lusheng Ji

Saeed S Ghassemzadeh

Chan Soo Hwang

Jae-Hak Chung

Chan-Soo Hwang

Manish Gupta

Wen Tong

Nimal Gamini Senarath

Seung-Hoon Nam

In-Soo Hwang

Hang Zhang

Myeon-Kyun Cho

Gamini Senarath

Jianglei Ma

Young-Ho Jung

Dong-Ho Kim

Ho Ting Cheng

Eun-Seok Ko

Ho-Ting Cheng

Ming Jia

Sang Joon Kim

Mohammadhadi Baligh

Shahrnaz Azizi

Philip Orlik

Ui Kun Kwon

Jinyun Zhang

Kieran Parsons

Ye Li

Anand Chari

Cheol-Woo You

Raymond Yim

Harold Grant Saroka

Yu-Seok Kim

Ivica Kostanic

Joseph M Cruz

Tharmalingam Ratnarajah

William James Gordon

Dakshi Agrawal

Gerhard Bauch

Siritiat Lek Ariyavisitakul

Anand K Chari

Grant Harold Saroka

Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a networking apparatus is configured to generate a plurality of sequences of symbols for transmission to plurality of client devices; transmit the plurality of sequences to the plurality of client device via one or more beams focused toward the client devices; and transmit the first sequence of symbols and the second sequence of symbols at least partly simultaneously.

Directed wireless communication

Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a network apparatus is configured to: receive a first signal transmission from a remote station via a first antenna element of an antenna and a second signal transmission from the remote station via a second antenna element of the antenna simultaneously; determine first signal information for the first transmission; determine second signal information for the second transmission, wherein the second signal information is different than the first signal information; determine a set of weighting values based on the first signal information and the second signal information, wherein the set of weighting values is configured to construct one or more beam-formed transmission signals; and generate the one or more beam-formed transmission signals based on the set of weighting values for transmission to the remote station.

A method, computer-readable storage device and apparatus for calculating a health quality measure are disclosed. For example, a method receives characteristics of motion information, wherein the characteristics of motion information is based upon gait information, monitors the characteristics of motion information over a time period to determine a plurality of different modes of motion within the time period, and calculates the health quality measure based upon the plurality of different modes of motion.

Method and apparatus for using gait analysis to determine a health quality measure

A method for operating a first device-to-device (D2D) device in a cellular communications system includes receiving geo-location information from a first entity in the cellular communications system, the geo-location information including location information for cellular users of the cellular communications system and resources of the cellular communications system available to the cellular users, selecting one of the resources to avoid causing interference to a cellular transmission, the resource being selected in accordance with the geo-location information, and transmitting to a second D2D device over the selected resource.

System and method for device-to-device operation in a cellular communications system

Disclosed herein are methods and apparatuses configured to direct wireless communication. In some embodiments, a networking apparatus is configured to generate a plurality of sequences of symbols for transmission to plurality of client devices; transmit the plurality of sequences to the plurality of client device via one or more beams focused toward the client devices; receive information regarding the one or more beams from the client devices; and modify at least one of the one or more beams based on the information.

A wireless power transmission system and method thereof are provided. A power transmission apparatus includes a processor configured to classify reception (RX) nodes into a subset, and to determine a transmission schedule based on the subset; and a transmission (TX) resonator configured to wirelessly transmit energy to an RX node corresponding to the subset, based on the transmission schedule.

Wireless power transmission system and method based on transmission schedule

Methods and systems for providing joint power control (PC) and scheduling in a wireless network are provided. In one example, a method includes generating a near-optimal power pattern for PC and scheduling in accordance with long term channel statistics. The near-optimal PC solution may be generated by first generating a set of possible power patterns in accordance with likely scheduling scenarios, then statistically narrowing the set of possible power patterns to identify the most commonly used power patterns, and finally selecting one of the most commonly used power patterns as the near-optimal power pattern. In another example, a table of optimal PC solutions are provided for performing distributed PC and scheduling in an adaptive and/or dynamic manner.

Systems and methods for downlink power control and scheduling in a wireless network

In an implementation of directed wireless communication, a multi-beam directed signal system coordinates directed wireless communication with client devices. A transmit beam-forming network routes data communication transmissions to the client devices via directed communication beams that are emanated from an antenna assembly, and a receive beam-forming network receives data communication receptions from the client devices via the directed communication beams.

A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas utilize a set of bits of a digital signal to generate a codeword. Delay elements may be provided in antenna output channels, or, with suitable code construction, delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver, the noisy received sequence is decoded. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.

Method and apparatus for data transmission using multiple transmit antennas

A simple block coding arrangement is created with symbols transmitted over a plurality of transmit channels, in connection with coding that comprises only simple arithmetic operations, such as negation and conjugation. The diversity created by the transmitter utilizes space diversity and either time or frequency diversity. Space diversity is effected by redundantly transmitting over a plurality of antennas, time diversity is effected by redundantly transmitting at different times, and frequency diversity is effected by redundantly transmitting at different frequencies: Illustratively, using two transmit antennas and a single receive antenna, one of the disclosed embodiments provides the same diversity gain as the maximal-ratio receiver combining (MRRC) scheme with one transmit antenna and two receive antennas. The principles of this invention are applicable to arrangements with more than two antennas, and an illustrative embodiment is disclosed using the same space block code with two transmit and two receive antennas.

Transmitter diversity technique for wireless communications

A method for estimating communications channels includes determining, by a first device, channel significance information from a transmitting device, the channel significance information including information about communications channels carrying signals that are potentially significant interferers to the first device operating within range of the transmitting device, and estimating, by the first device, channel parameters of the communications channels identified as potentially significant interferers in accordance with the channel significance information. The method also includes transmitting, by the first device, the estimated channel parameters to one of the transmitting device and a controlling device.

System and method for channel estimation in a wireless communications system

A base station communicates with a plurality of user equipments (UEs) using a method. The method includes receiving, by the base station, a plurality of signals from a plurality of user equipments (UE) in communication with the base station. The method also includes using an iterative algorithm to estimate a matrix &#x39b; of channel coefficients based on the received signals. The method further includes decoding, at the base station, the received signals using the estimated matrix &#x39b;.

Transmission schemes for device communications

Growing community of inventors

Cambridge, MA, United States of America

Vahid Tarokh