Arraycomm, Inc.

Societe Francaise Du Radiotelephone

Intel Corporation

Google Inc.

Serge Barbosa Da Torre

Mitchell D Trott

Adam Bruce Kerr

Imad Fattouch

Rabih Chrabieh

Athanasios Agamamnon Kasapi

Peter George Khoury

Erik David Lindskog

David M Parish

Athos Kasapi

Norbert Barbosa Da Torre

A method of predicting the level of radio field and/or the duration of radio propagation of a mobile telephone network for the coverage of a cell using the ray tracing technique and utilizing geographical databases, wherein the database directly utilized is a matrix base composed of pixels, each pixel carrying at least an information item specific to the type of ground cover and an information item specific to the height of the ground cover, a vectorization processing is applied to the matrix base to linearize the contours of obstacles encountered while rays are fictitiously traced, the rays according to the obstacles encountered being either reflected or diffracted and scattered, while the global attenuation and/or propagation duration is calculated, the vectorization processing of the contours of obstacles being applied to matrix bases to linearize the contours of obstacles encountered by forming straight lines whose positions and various angles are known accurately.

Method for predicting the radio field level and/or the duration of propagation of cellular telephone networks using high-resolution terrain databases

Methods and apparatus for calculating spatial processing strategies in adaptive antenna array processing systems. Reference signal quality, intersymbol interference, data processed and received signal quality can be determined by burst type or remote device type and used to determine a synthetic signal level for use in developing a spatial processing strategy. A synthetic signal have an isotropically distributed component can be added to the antennas in the array or the diagonal elements of the received signal covariance matrix to develop uplink and downlink spatial processing strategies. Different synthetic signals at different signal levels can be used to develop different uplink and downlink spatial processing strategies. The downlink signal level can be larger than the uplink signal level. Uplink and downlink processing strategies can be developed in substantially the same way.

Adaptive antenna array with programmable sensitivity

This present invention concerns a method and a system for simulating and optimising the use of resources available in a zone of coverage of a mobile telephone network (RT), characterized, firstly, in that it is implemented by processing resources () of at least one resource optimization system () and, secondly, in that it includes the following stages determination (), by an event management module (EM) of the optimization system (), of a variation, called a disruption, of at least one packet (P) transmission (T) required within the network (RT), from at least one statistical distribution map (CR) held in storage resources () of the optimization system (), and that consists of data representing data packet (P) transmissions (T), selection () of a set of cells determining a simulated zone (ZS), by a resource operating-resources control module (CL), and then use of a routing algorithm in order to determine a routing path (CP) in the simulated zone (ZS) and to successively optimize the resources of the servers (ER) covering the successive cells of the routing path (CP)

Method and system for the simulation and management of the resources of a mobile telephone network

A method and a system for simulating and optimising the operating resources available in a coverage area of a mobile telephone network implemented by processing resources of at least one resource optimisation system and, can include definition, by an event-management module of the optimisation system, of a variation, called a perturbation, of at least one transmission of packets required within the network, from at least one statistical distribution map, selection of a set of cells determining a simulated zone, by means of an operating-resource control module, and then use of a routing algorithm to determine a routing path in the simulated zone, and to successively optimise the resources of the servers, definition by the event-management module, of data that represent at least one parameter relating to the transmission of the packets within each of the cells in the simulated zone, from amongst at least parameters of time-multiplexing of the packet, code-multiplexing of the packet, and the power required.

Method and system for simulation and management of the resources of a mobile telephone network

The present invention allows a radio receiver or a transmitter, with a plurality of antennas configured into an array, to be calibrated. In one embodiment, the method includes receiving a plurality of signals from a plurality of remote transmitters at the antenna array, sampling the signals received at at least two antennas of the array, computing a relative phase and amplitude of the sampled signals for each antenna, and computing calibration coefficients based on the relative phase and amplitude for the plurality of sampled signals from the plurality of remote transmitters for each antenna.

Statistical calibration of wireless base stations

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Paris, France

Serge Barbosa Da Torre