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Filippo Tosato
Filippo Tosato, Eindhoven GB
| Patent application number | Description | Published |
|---|---|---|
| 20110039535 | RADIO COMMUNICATION STATION AND RADIO COMMUNICATION DEVICE, AND METHODS OF OPERATING SAME - A radio communication station in a radio communication system having a plurality of radio communication devices, derives a quantisation parameter and transmits the quantisation parameter to the radio communication devices for use in subsequent quantisation of a channel state metric. The radio communication devices receive the quantisation parameter, determine a channel state metric, quantise the determined channel state metric by applying quantisation ranges indicated by the quantisation parameter, determine a data value indicative of the quantised channel state metric, and transmit a signal conveying the determined data value as a random access transmission. | 02-17-2011 |
Filippo Tosato, Redhill GB
| Patent application number | Description | Published |
|---|---|---|
| 20080207238 | Transmission Over a Multiple Input Multiple Output Broadcast Channel (Mimo-Bc) - A Multiple Input Multiple Output (MIMO) communication system | 08-28-2008 |
| 20080253324 | Multiple Channel Communication - A communication device ( | 10-16-2008 |
| 20090312018 | METHODS OF TRANSMITTING AND RECEIVING DATA, AND APPARATUS THEREFOR - Data is transmitted from a radio communication device ( | 12-17-2009 |
| 20100118782 | METHOD FOR COMMUNICATING IN A MIMO CONTEXT - The present invention relates to a method for communicating from a primary station with an array of transmit antennas to a secondary station on a downlink channel, said method comprising steps of, at the primary station, (a) configuring the downlink channel, step (a) being subdivided into steps of: (a2) computing a precoding to be applied during a corresponding transmission from the primary station to the secondary station for each of an array of transmit antennas; (a3) applying a reversible transform N to the precoding, thus ascertaining a set of precoding coefficients substantially representative of the precoding in a transform domain; (a4) computing a set of parameters comprising at least one parameter, said parameter being substantially representative of the coefficients obtained at step (a3); (a5) signaling the set of parameters to the secondary station; (b) transmitting data to the secondary station substantially according to the precoding computed at step (a2). | 05-13-2010 |
| 20100118783 | METHOD FOR PROVIDING PRECODING INFORMATION IN A MULTI-USER MIMO SYSTEM - The present invention relates to a method for communicating in a network having a primary station and a plurality of secondary stations, said method comprising a step of, at the primary station, (a) configuring at least one downlink channel from the base station to a first secondary station, step (a) comprising (a1) signalling a first set of at least one parameter indicative of precoding applied to a first transmission from the base station to the first secondary station; (a2) signalling a second set of at least one parameter indicative of precoding applied to a second transmission from the base station to at least one second secondary station, wherein said step (a2) is carried out so that the second set of parameters contains less information than the first set of parameters. | 05-13-2010 |
| 20100311429 | COORDINATED CHANGE OF TRANSMISSION PARAMETERS FOR DATA AND CONTROL INFORMATION - The present invention relates to a method for transmission of control information from a primary station to at least one secondary station, comprising the step of transmitting with a first set of control information parameters control information corresponding to data transmission with a first set of data parameters and transmitting with a second set of control information parameters control information corresponding to data transmission with a second set of data parameters, wherein at least one control information parameter has a difference in value between the two sets of control information parameters, said difference in value having a dependency on the difference between the value of a data parameter in the first set of data parameters and the value of the data parameter in the second set of data parameters, said data parameter being a different parameter from the at least one control information parameter. | 12-09-2010 |
Filippo Tosato, Gloucester GB
| Patent application number | Description | Published |
|---|---|---|
| 20100182172 | METHOD FOR ENCODING VECTORS - The present invention relates to a method for encoding a vector for transmission from a transmitter to a receiver, comprising a step of selecting a first vector in a predefined M-dimensional vector codebook, and at least one refinement step wherein an error vector between the random vector and the first vector is quantised by means of selecting a further vector from a further vector codebook with dimensionality reduced by one relative to the previous step, wherein the M-dimensional vector codebook and the further predefined vector codebook are known to both the transmitter and receiver. | 07-22-2010 |
Filippo Tosato, Bristol GB
| Patent application number | Description | Published |
|---|---|---|
| 20100054354 | WIRELESS COMMUNICATION APPARATUS - Processing data presented in the form of a vector representation involves representing direction of the vector with incremental accuracy by using a set of vector codebooks of decreasing dimensions per accuracy increment. | 03-04-2010 |
| 20110111747 | WIRELESS COMMUNICATION APPARATUS AND METHOD - A data compression process is described, for compressing channel state information to be fed back to a transmitter. The process involves arranging the data as a matrix comprising a number of orthonormal vectors derived from a channel matrix, determining a singular value decomposition of a subset of the orthonormal matrix to generate matrices respectively of left and right singular vectors, the number of vectors in the subset being equal to the order of the vectors, and right multiplying the remainder orthonormal vectors not included in the singular value decomposition by a matrix product of the matrix of right singular vectors and the matrix of left singular vectors to generate a matrix of compressed data. | 05-12-2011 |
Filippo Tosato, Surrey GB
| Patent application number | Description | Published |
|---|---|---|
| 20090252251 | TRANSFORM-DOMAIN FEEDBACK SIGNALING FOR MIMO COMMUNICATION - The present invention relates to a control method for a communication network that has a transmitter with an array of transmit antennas and that has at least one receiver communicating with the transmitter. The receiver performs a channel measurement for a receive antenna of the receiver using a signal transmitted from the transmitter to the receiver. The receiver further determines channel coefficients for each of an array of transmit antennas at the transmitter from an output of the channel measurement, and then applies a linear, reversible and orthogonal transform to the channel coefficients, thus ascertaining channel component coefficients indicative of the individual weight of respective channel components in a transform domain. The receiver then selects one or more channel components in the transform domain and communicates to the transmitter a control signal indicative of one or more preferred channel components or a magnitude of one or more channel component coefficients, or both, in quantized form. The transmitter receives the control signal and constructs a beam pattern in the transform domain using the information received from the receiver. | 10-08-2009 |