Patent application number | Description | Published |
20100013710 | ARRAY ANTENNA ARRANGEMENT - The present invention relates to an array antenna arrangement comprising at least two antenna sub-arrays and at least one antenna element in each antenna sub-array. The array antenna arrangement is adapted for calculation of a total covariance matrix (R) of a received signal vector (x). The array antenna arrangement further comprises at least one switch, where the number of switches corresponds to the number of antenna elements in each antenna sub-array. Each switch is connected to a respective radio chain, and is arranged to connect the antenna elements of a respective corresponding antenna sub-array to the respective radio chain cyclically. At least one full switch cycle, comprising a set of received signals for each switch configuration, is carried out for a calculation of the total covariance matrix (R). The present invention also relates to a corresponding method. | 01-21-2010 |
20100066635 | MICROWAVE SPARSE ARRAY ANTENNA ARRANGEMENT - A microwave array antenna arrangement comprising at least two groups of antenna elements and at least two antenna elements in each group. All groups comprise an equal amount of antenna elements, where the arrangement further comprises one radio chain for each group of antenna elements. The arrangement also comprises one switch for each radio chain, the switches being arranged for cyclically connecting each radio chain to the antenna elements in each respective group of antenna elements. | 03-18-2010 |
20110002414 | Method Of And A Device For Precoding Transmit Data Signals In A Wireless MIMO Communication System - A method of and a precoding device and a communication device for precoding transmit data signals in a wireless Multiple-Input Multiple-Output, MIMO, channel transmission scheme for maximizing channel capacity of the MIMO system given available amounts of transmit power. The precoding is expressed in a complex precoding matrix (W), which is calculated involving individual transmit power constraints of the multiple outputs ( | 01-06-2011 |
20110248889 | Device and a Method For Establishing Communication Between Nodes in a Wireless Communication System - The present invention relates to a first node ( | 10-13-2011 |
20110256893 | ADAPTIVE TRANSMISSION SELECTION - A controlling station ( | 10-20-2011 |
20120069780 | Node in a Wireless Communication System With Different Antenna Diversity Methods For Uplink and Downlink - The present invention relates to anode ( | 03-22-2012 |
20120083317 | Wireless Communication Node and a Method Related Thereto - The present invention relates to a wireless communication node ( | 04-05-2012 |
20120087450 | WIRELESS COMMUNICATION NODE CONNECTIONS - The present invention relates to a wireless communication node ( | 04-12-2012 |
20120287813 | Method and Arrangement in a Wireless Communication System - Method and arrangement in a network entity for supporting link adaptation in a wireless communication system. The method comprises obtaining | 11-15-2012 |
20120319920 | COMMUNICATION SYSTEM NODE COMPRISING A RE-CONFIGURATION NETWORK - The present invention relates to a node ( | 12-20-2012 |
20120326928 | COMMUNICATION SYSTEM NODE COMPRISING A TRANSFORMATION MATRIX - The present invention relates to a node ( | 12-27-2012 |
20130109420 | Method and Arrangement For Reducing Interference and Enhancing Coverage | 05-02-2013 |
20130272442 | METHODS AND ARRANGEMENTS FOR WIDEBAND PRECODING - The present invention relates to a network node and a mobile node, and to related methods for wideband precoding. The methods comprise determining a phase compensation vector which is frequency dependent for the at least one predefined precoding weight vector in a precoding codebook for multi-antenna transmission. The methods further comprise determining a second precoding weight vector which is phase compensated by multiplying the at least one predefined precoding weight vector by the phase compensation vector. | 10-17-2013 |
20130278463 | ANTENNA ARRANGEMENT FOR DOA ESTIMATION - An antenna arrangement including at least two antenna functions arranged to cover a certain angular sector, each antenna function comprising a corresponding antenna port. The antenna arrangement is configured to perform: a first direction of arrival (DOA) estimation for a transmitting device at a first frequency, and a second DOA estimation for the transmitting device at a second frequency, wherein the second frequency has a larger magnitude than the first frequency, and wherein at least one second frequency grating lobe is apparent in the angular sector at the second frequency. The antenna arrangement is configured to: distinguish the at least one second frequency grating lobe from a second frequency main lobe using results from the first DOA estimation, and identify a pointing direction of the second frequency main lobe as a resulting DOA estimation. Related methods are also described. | 10-24-2013 |
20130343328 | METHOD AND ARRANGEMENT FOR POWER ALLOCATION IN COMMUNICATION SYSTEMS - In a method of allocating power to data streams in a communication system, providing (S | 12-26-2013 |
20140073340 | METHODS IN A BASE STATION, COMPUTER PROGRAMS, COMPUTER PROGRAM PRODUCTS AND BASE STATION - The invention relates to a method in a base station serving a cell, the base station using a frequency bandwidth and comprising an antenna arrangement and a controller. The antenna arrangement comprises a number of antenna devices and a beamformer. The method comprises the steps of: associating, in the beamformer, at least a first and a second frequency band with a respective first and a second beam, each frequency band comprising a part of the frequency bandwidth used by the base station; dynamically determining, in the controller, a degree of utilization of the at least first and second frequency bands within the at least first and second beam; and re-associating, in the beamformer, the at least first and second frequency bands with the first and second beam, based on the determined degree of utilization of frequency bands. The invention also relates to base stations, computer programs and computer program products. | 03-13-2014 |
20140092835 | Radio Resource Assignment Coordination in Superdense Networks - A network controller as well as a method in a network controller for coordinating resource assignments to radio access points of a superdense, SDN, network is provided. The method comprises identifying a set of radio access points in the SDN network whose respective radio resource assignment is to be independently coordinated. The method also comprises obtaining interference information indicative of the extent to which radio transmissions to or from different radio access points in the set would interfere with one another absent radio resource assignment coordination. The method then forms subsets of the radio access points in the set based on this obtained interference information. The method also assigns different subsets of radio resources to the different subsets of the radio access points, and reports assignment information to the radio access points in the set, indicating the assignment of radio resources. | 04-03-2014 |
20150049629 | Method and Arrangement in a Wireless Communication System - In one aspect of the teachings herein, a probability distribution is determined for the prediction errors determined from the differences between predicted and measured values of a quality parameter for a radio link between first and second radio nodes in a wireless communication system. In turn, the probability distribution is used to identify a prediction error value on which a link adaptation margin estimate is based, and the link adaptation margin estimate is provided for use in performing link adaptation, e.g., for use as a “back off” value for the predicted values of radio link quality which are used to make link adaptation decisions. | 02-19-2015 |