公开(公告)号：US09225575B2

公开(公告)日：2015-12-29

申请号：US14734634

申请日：2015-06-09

Applicant: Centre of Excellence in Wireless Technology

Inventor： Kiran Kumar Kuchi ,  Deviraj Klutto Milleth Jeniston ,  Vinod Ramaswamy ,  Baskaran Dhivagar ,  Krishnamurthi Giridhar ,  Bhaskar Ramamurthi ,  Dileep Manisseri Kalathil ,  Padmanabhan Madampu Suryasarman

IPC: H04J11/00 ,  H04L27/26 ,  H04L27/20 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04L27/2646 ,  H04B7/0456 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0656 ,  H04L5/0023 ,  H04L25/0224 ,  H04L27/20 ,  H04L27/261 ,  H04L27/2628 ,  H04L27/2636 ,  H04L27/2647 ,  H04L27/2649

Abstract: Precoding for multiple transmission streams in multiple antenna systems. Disclosed herein is a general method that transmits signal from multiple antennas using a one/two dimensional precoder. This precoder is fixed in a given resource block (RB) or slot, which is composed of P subcarriers and Q OFDM symbols (where the values for P and Q are greater than or equal to 1). The precoder in each resource block may take same or different values, which span the two dimensional time-frequency grid. The precoder is chosen as a function of either logical frequency index or physical frequency index of the RB.