This patent application has not been assigned to a company or institution.
The following quote was obtained by the news editors from the background information supplied by the inventors: "Multiple-input multiple-output (MIMO) wireless systems are those that have multiple antennas on the transmitter side and the receiver side. One way to exploit the number of antennas in a
"Implicit CSI (CQI/PMI/RI) feedback is based on a pre-defined set of codebooks, which are a set of matrices calculated offline and known at the eNB and UEs. The codebook of rank-r consists of a number of Nt.times.r matrices where Nt is the number of eNB transmit antennas. The UE feedback includes the RI, PMI and CQI mentioned above. RI refers to a preferred transmission rank (number of data streams), ranging from 1 to min(Nt,Nr), where Nr is the number of receive antennas. PMI refers to a UE recommended precoding matrix index in the rank-r codebook. For evolved UMTS Terrestrial Radio Access (E-UTRA) LTE Release 8, a single PMI is reported for each frequency subband, corresponding to the RI report. CQI refers to the quality of the channel (e.g., supportable data rate and/or signal-to-noise ratio). The reported CQI is associated with the reported PMI."
In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "In at least some embodiments, a system includes a multiple-input multiple-output (MIMO) base station and a plurality of
"In accordance with at least some embodiments, an electronic device includes
"In accordance with at least some embodiments, a method includes receiving, by a
BRIEF DESCRIPTION OF THE DRAWINGS
"For a detailed description of exemplary embodiments of the invention, reference will now be made to the accompanying drawings in which:
"FIG. 1 shows an illustrative embodiment of a multiple-input multiple-output (MIMO) wireless communication system in accordance with an embodiment of the disclosure;
"FIG. 2 shows additional components of the
"FIG. 3 shows additional components of the
"FIGS. 4A-4C show time charts for multi-rank precoding matrix indicator (PMI) feedback reporting in accordance with embodiments of the disclosure; and
"FIG. 5 shows a method in accordance with an embodiment of the disclosure."
URL and more information on this patent application, see: Chen, Runhua; Onggosanusi, Eko N. Multi-Rank Precoding Matrix Indicator (Pmi) Feedback in a Multiple-Input Multiple-Output (
Keywords for this news article include: Patents.
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