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 |
20110249613 | REMOTELY WEIGHTED SDMA TRANSMISSION - The present disclosure concerns the harnessing of the effect of a relay to enhance the ability to avoid the effect of interference at mobile stations. This is achieved either by overlaying beamforming for an indirectly reached mobile station so that a relay passes on this beamforming to the mobile station concerned, and retaining orthogonality therewith, or by harnessing a base station and a relay station together so that their combined effect is to provide spatial multiplexing to two or more mobile stations. | 10-13-2011 |
20110249763 | DUAL INDICATOR SCHEME FOR CHANNEL STATE INFORMATION FEEDBACK - Codebook based communication of precoding data between two stations involves determining a ‘best fit’ precoding at a receiving station, on the basis of channel state measurements taken therein. The best fit precoding is compared with pre-agreed entries in a codebook, and an indicator is sent back to the terminal emitting the analysed signal. The determination is separated into two elements, one being sufficient for use with SU-MIMO, and another being provided, with a second codebook indicator, if MU-MIMO is to be employed. This second codebook indicator points to a codebook of eigenvector representations for the multi-user space in which the channel is persisting. | 10-13-2011 |
20130064273 | 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. | 03-14-2013 |
20130064274 | 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. | 03-14-2013 |
20130189931 | WIRELESS COMMUNICATION METHODS AND APPARATUS - In one embodiment a method of identifying interference in a wireless network is disclosed. The wireless network comprises a first base station and a second base station. The method comprises detecting an increase in an error rate in a wireless connection between the first base station and a first wireless device; comparing a reference signal power received by the first wireless device from the first base station with a threshold value; and determining that the increase in error rate is due to interference from a wireless connection between the second base station and a second wireless device if the reference signal power is greater than the threshold. | 07-25-2013 |
20140169420 | 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. | 06-19-2014 |
20140169421 | 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. | 06-19-2014 |