Patent ID: 9203660
Filing Date: 2015-12-01
Classification: H04B,H04L

Abstract:
1. A method of designing a codebook for a 3D antenna configuration, the method comprising: selecting a horizontal codeword characterizing a first horizontal antenna array in a 3D antenna configuration from a horizontal codebook, wherein the 3D antenna configuration includes a rectangular antenna array formed by one or more horizontal antenna arrays and one or more vertical antenna arrays, wherein the one or more horizontal antenna arrays includes the first horizontal antenna array, wherein the selected horizontal codeword is associated with an index n; selecting a vertical codeword characterizing a first vertical antenna array in the 3D antenna configuration from a vertical codebook, wherein the one or more vertical antenna arrays includes the first vertical antenna array, wherein the selected vertical codeword is associated with an index m; and determining a target codeword for the 3D antenna configuration based at least in part on the index n associated with the horizontal codeword, the index m associated with the vertical codeword, and a rank r, wherein the rank r is associated with at least one of the horizontal codeword and the vertical codeword.