Patent application number | Description | Published |
20080261570 | Radio Communication Apparatus and Method of Control - A method of operating a radio communication apparatus ( | 10-23-2008 |
20080293439 | Associated Paging Indicator - A receiver for receiving wireless communication signals from a transmitter is arranged to operate in one of a plurality of states. The receiver is arranged to perform a state transition from the current state to another state among the plurality of states upon reception of a Paging Indicator Signal. The Paging Indicator Signal comprising an indication of the one of the plurality of states to which the state transition is to be performed. | 11-27-2008 |
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 |
20090290495 | RADIO COMMUNICATION SYSTEM - In a radio communication system having a data channel for the transmission of data packets from a primary station to a secondary station, a plurality of downlink control channels are used to signal information relating to packet transmission. A problem with this scheme is that with a fixed control channel allocation system throughput (T) for a given offered load (O) can be significantly reduced in a worst case scenario (for example two secondary stations using the same control channel). One solution uses an indicator signal to inform a secondary station of the control channel it should receive, but this adds significant complexity to the system. The present invention provides a simpler scheme having similar benefits by shuffling the allocation of control channels to secondary stations, according to a defined sequence for each secondary station, thereby avoiding the worst case scenario. | 11-26-2009 |
20090310687 | METHOD AND APPARATUS FOR SPACE-TIME-FREQUENCY ENCODING AND DECODING - The present invention provides a space-time-frequency encoding and decoding method and apparatus used in a wireless communication system. With the encoding method provided in the invention, transmission code words and their redundant elements are properly allocated on space-time-frequency units, so that the transmission codes and their partial redundancies can be transmitted via different antennas. Accordingly, at the receiving side, the redundant elements and the corresponding code word elements can be combined, so as to enhance the SNR and diversity gains for a part of the elements in the code words, and hence enhance the reception quality for the overall data stream. | 12-17-2009 |
20110044187 | METHOD FOR OPERATING A RADIO STATION IN A MOBILE NETWORK - The present invention relates to a method for operating a secondary station comprising means for communicating with a primary station, the method comprising receiving from the primary station an interference status report, said interference status report comprising an spatial indication being representative of a spatial characteristic of the interference, measuring channel characteristics on reference symbols, and interpreting the measured channel characteristics with help of the interference status report. | 02-24-2011 |
20110045859 | METHOD FOR OPERATING A RADIO STATION IN A MOBILE NETWORK - The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel. | 02-24-2011 |
20110081901 | METHOD FOR SIGNALLING A PRECODING IN A COOPERATIVE BEAMFORMING TRANSMISSION MODE - The present invention relates to a method for operating a secondary station in a network, the secondary station comprising a transceiver adapted for simultaneously receiving transmissions from a primary station controlling a first cell and at least one primary station controlling a second cell, the method comprising the secondary station
| 04-07-2011 |
20110085587 | METHOD FOR OPERATING A RADIO STATION IN A CELLULAR COMMUNICATION NETWORK - The present invention relates to a method for operating a primary station comprising a transceiver for communicating with a plurality of secondary stations, said transceiver including at least two antennas, the method comprising the primary station transmitting to a secondary station for a single spatial channel at least one first set of reference symbols with a first antenna and at least one second set of reference symbols with a second antenna, the second set of reference symbols being orthogonal to the first set of reference symbols. | 04-14-2011 |
20110143764 | METHOD FOR COMMUNICATING IN A NETWORK, RADIO STATIONS AND A SYSTEM THEREFOR - The present invention relates to method for communicating in a network comprising the step a) of a primary station transmitting to at least one secondary station on a downlink control channel an indication related to a resource allocated to said secondary station in accordance with a semi persistent schedule, wherein the step a) comprises the step of transmitting to the secondary station at least two messages including at least part of the indication in one subframe. | 06-16-2011 |
20110143765 | METHOD FOR COMMUNICATING IN A NETWORK, A SECONDARY STATION AND A SYSTEM THEREFOR - The present invention relates to a method for communicating in a network, comprising a) a secondary station preparing the transmission to a primary station of a message comprising at least a data field for containing data in an allocated resource, said resource comprising a plurality of resource blocks, and b) if the size of the allocated resource is bigger than required for the size of the message, the secondary station dividing the allocated resource in a first portion and a second portion, each portion comprising at least one resource block, c) the secondary station transmitting the message to the primary station in the first portion of the resource, d) the secondary station preventing from transmitting in the second portion of the resource. | 06-16-2011 |
20110151883 | METHOD FOR COMMUNICATING IN A NETWORK, A SECONDARY STATION AND A SYSTEM THEREFOR - The present invention relates to a method for communicating in a network, comprising a) a secondary station preparing the transmission to a primary station of a message comprising a report and a data field for containing data in an allocated resource, and b) the secondary station setting at least one transmission parameter of the message at a first level of reliability if the size of the allocated resource is bigger than the size of the message, and else setting at least one transmission parameter at second level of reliability being lower than the first level of reliability, c) the secondary station transmitting the message to the primary station. | 06-23-2011 |
20120002612 | METHOD FOR COMMUNICATING IN A MIMO NETWORK - The present invention relates to a method for communicating in a network, said network comprising a primary station and at least a first secondary station, wherein the first secondary station transmits to the primary station an indication of a first plurality of precoding vectors, wherein the number of first precoding vectors is greater than a preferred rank of transmission from the primary station to the first secondary station. | 01-05-2012 |
20120009917 | METHOD FOR COMMUNICATING IN A MIMO NETWORK - The present invention relates to method for communicating in a network, said network comprising a primary station and at least one secondary station having a plurality of antennas, the method comprising the step of the primary station transmitting to a first secondary station an indication of a first receive combining matrix that the first secondary station should use to combine the signals received at its said plurality of antennas from a first subsequent transmission from the primary station. | 01-12-2012 |
20120046027 | METHOD FOR COMMUNICATION IN A MOBILE NETWORK - The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising configuring a secondary station being in a first state to search at least one of a plurality of search spaces having a first structure, said first structure consisting of at least a first number of resource sets having a first size, where at least one resource set might be used to transmit a message to the considered secondary station, changing the search space structure to a second structure different from the first structure when the secondary station enters into a second state. | 02-23-2012 |
20120057645 | METHOD FOR COMMUNICATING IN A NETWORK - The present invention relates to a method for operating a communication system in a network, the system comprising a primary station and at least one secondary station, the primary station comprising a plurality of transmit antennas and the secondary station comprising a plurality of receive antennas, the method comprising the steps of the primary station selecting a first communication scheme among a plurality of communication schemes, the primary station computing a transmission vector on the basis of the first communication scheme, the secondary station computing a reception vector on the basis of a second communication scheme, the second communication scheme being selected among the plurality of communication schemes by the secondary station on the assumption that a predetermined communication scheme is being used by the primary station. | 03-08-2012 |
20120106424 | METHOD FOR COMMUNICATING IN A MOBILE NETWORK IMPLEMENTING DISCONTINUOUS RECEPTION - The present invention relates to a method for operating a network comprising a primary station communicating with a plurality of secondary stations, the method comprising the primary station communicating with a secondary station in a discontinuous mode; the secondary station transmitting to the primary station a control message based on the current status of the secondary station; the primary station changing a parameter of the discontinuous mode based on the control message. | 05-03-2012 |
20120218911 | Transceiver Set Assignment Scheme For A Distributed Antenna System - According to one embodiment, a method includes establishing a plurality of wired connections between a base station and a plurality of geographically distributed remote transceivers. Each remote transceiver of the plurality of remote transceivers has one or more physical antenna ports. The plurality of remote transceivers are assigned to a plurality of sets where each set has one or more of the plurality of remote transceivers. One or more logical ports is assigned to each set of the plurality of sets. Each logical port of a set corresponds to at least one physical antenna port of the one or more remote transceivers of the respective set. Data traffic is sent from the base station to the endpoint using at least one wireless connection between the endpoint and at least one physical antenna port of the one or more remote transceivers of a first set of the plurality of sets. | 08-30-2012 |
20120314792 | METHOD OF GENERATING A CODEBOOK - A precoding codebook matrix/vector of length 2L is generated by the selection of two matrices/vectors, each from one of a predetermined set of L×L matrices and multiplying each column of one of the matrices/vectors by a complex coefficient. | 12-13-2012 |
20120320855 | MITIGATION OF CONTROL CHANNEL INTERFERENCE - The present invention relates to a method for operating a network comprising a first primary station and a second primary station, wherein the first primary station serves a first cell including at least one first secondary station communicating with the first primary station and wherein the second primary station serves a second cell including at least one second secondary station communicating with the second primary station, the method comprising the steps of (a) the first primary station and the second primary station transmitting payloads in a synchronous manner on at least one set of resources, (b) the first and the second primary stations transmitting control data on the at least one set of resources respectively to the first secondary station and to the second secondary station, wherein the method further comprises (c) at least the first primary station rendering the transmission of control data to the first secondary station orthogonal to the transmission of control data from the second primary station. | 12-20-2012 |
20130010888 | METHOD FOR OPERATING A SECONDARY STATION - The invention relates to a method for operating a secondary station, the secondary station communicating with at least one primary station by means01-10-2013 | |
20130012203 | METHOD FOR DEFINING PDCCH SEARCH SPACE IN A COMMUNICATION SYSTEM USING CARRIER AGGREGATION - The invention relates to a method for operating a secondary station to search for PDCCH in search spaces on a plurality of component carriers, wherein the component carriers comprise an anchor carrier and a plurality of other carriers and the search spaces change in a preconfigured way with the time. | 01-10-2013 |
20130021948 | METHOD FOR COMMUNICATING IN A MOBILE NETWORK DURING A TRANSITIONAL CONFIGURATION MODE - The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising (a) the secondary station being configured to search a first configuration of search spaces, said search spaces comprising a number of resource sets, where at least one resource set might be used to transmit a message to the secondary station, (b) configuring the secondary station by means of a configuration message to search a second configuration of search spaces, (c) the secondary station in response of the reception of the configuration message entering into a transitional configuration mode, wherein the secondary station searches partly the first configuration of search spaces and the second configuration of search spaces. | 01-24-2013 |
20130083864 | METHOD FOR OPERATING A SECONDARY STATION - The invention relates to a method for operating a secondary station in a communication network including a primary station, the method comprising generating a pre-coding matrix obtained from the Hadamard product of an alphabet modifying matrix and an original pre-coding matrix, wherein the original precoding matrix consist of complex coefficients of equal magnitude, transmitting a precoding report representative of the precoding matrix to the primary station. | 04-04-2013 |
20130102342 | METHOD FOR CONFIGURING A TRANSMISSION MODE IN A WIRELESS NETWORK - The present invention relates to a method for operating a communication system, said communication system comprising a primary and at least one secondary station, wherein the primary station selects a transmission mode from a set of at least two transmission modes for communicating with the secondary station and wherein the secondary station infers the selected transmission mode based on at least one control channel characteristic. | 04-25-2013 |
20130279445 | METHOD FOR COMMUNICATING IN A NETWORK, A SECONDARY STATION AND A SYSTEM THEREFOR - The present invention relates to a method for communicating in a network, comprising
| 10-24-2013 |
20130324053 | METHOD OF SIGNALLING 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. | 12-05-2013 |
20140044209 | METHOD FOR SIGNALLING A PRECODING IN A COOPERATIVE BEAMFORMING TRANSMISSION MODE - The present invention relates to a method for operating a secondary station in a network, the secondary station comprising a transceiver adapted for simultaneously receiving transmissions from a primary station controlling a first cell and at least one primary station controlling a second cell, the method comprising the secondary station
| 02-13-2014 |
20140044210 | EFFICIENT CQI SIGNALING IN MULTI-BEAM MIMO SYSTEMS - The present invention relates to the signaling of channel quality information in a multi-beam transmission system, wherein a plurality of beams are simultaneously transmitted and a plurality of sets of channel quality information are transmitted for controlling independently the transmission rate on the different beams. Determined are beams with a different quality resulting in different effects of errors in the transmissions of the channel quality information for the beams. Said different effects are exploited for reducing a signaling overhead of the channel quality information for the beams. | 02-13-2014 |
20140169505 | SPACE-TIME/SPACE-FREQUENCY CODING FOR MULTI-SITE AND MULTI-BEAM TRANSMISSION - The present invention relates to space-time or space-frequency coding in cellular systems. The same data is transmitted from different antennas with different coverage areas, corresponding to different cells. The different data streams have different parts of the space-time block codes applied. A mobile terminal can combine the different parts of the space-time block codes in different received signals. This provides better performance than the known techniques for single frequency networks. The invention can also be applied to antennas with different coverage areas from the same site, and different beams formed with antenna arrays. | 06-19-2014 |
20140241291 | METHOD FOR SIGNALLING A PRECODING IN A COOPERATIVE BEAMFORMING TRANSMISSION MODE - In a method for operating a secondary station in a network, the secondary station: controlling a transceiver configured for simultaneously receiving transmissions from a first primary station controlling a first cell and at least one second primary station controlling a second cell; selecting a first precoding matrix for the first cell out of a first set of precoding matrices for the first cell; selecting, depending on the first precoding matrix, in accordance with a precoding scheme, a subset out of a second set of precoding matrices for the second cell, the subset comprising at least one precoding matrix for the second cell; selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices; transmitting a first and second indicator representative of the respective first and second precoding matrix; wherein the second precoding matrix is based on the value of the first indicator, so that the amount of data used for transmitting the second indicator is less than the amount of data used for transmitting the first indicator. | 08-28-2014 |
20150023300 | METHOD FOR COMMUNICATING IN A MOBILE NETWORK - A method for communicating between a primary station and at least one secondary station, comprising: configuring the secondary station to search at least one of a plurality of search spaces having a first structure, the first structure consisting of at least a first number of resource sets having a first size, where at least one resource set is for transmitting a message to the secondary station, and changing the search space structure to a second structure different from the first structure in response to a signalling message. | 01-22-2015 |
20150065118 | METHOD FOR OPERATING A MOBILE STATION - A method for communicating in a mobile communications network including a primary station communicating with at least one secondary station comprising communication means for communicating with a primary station, | 03-05-2015 |