Invention Grant
- Patent Title: Continuous beamforming for a MIMO-OFDM system
- Patent Title (中): 用于MIMO-OFDM系统的连续波束成形
-
Application No.: US12533765Application Date: 2009-07-31
-
Publication No.: US08909174B2Publication Date: 2014-12-09
- Inventor: Steven J. Howard , Jay Rodney Walton , Mark S. Wallace
- Applicant: Steven J. Howard , Jay Rodney Walton , Mark S. Wallace
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenyon S. Jenckes
- Main IPC: H04B7/02
- IPC: H04B7/02 ; H04B7/06 ; H04B7/04

Abstract:
A transmitting entity performs spatial processing on data symbols for each subband with an eigenmode matrix, a steering matrix, or an identity matrix to obtain spatially processed symbols for the subband. The data symbols may be sent on orthogonal spatial channels with the eigenmode matrix, on different spatial channels with the steering matrix, or from different transmit antennas with the identity matrix. The transmitting entity further performs beamforming on the spatially processed symbols, in the frequency domain or time domain, prior to transmission from the multiple transmit antennas. A receiving entity performs the complementary processing to recover the data symbols sent by the transmitting entity. The receiving entity may derive a spatial filter matrix for each subband based on a MIMO channel response matrix for that subband and perform receiver spatial processing for the subband with the spatial filter matrix.
Public/Granted literature
- US20090290657A1 Continuous Beamforming for a MIMO-OFDM System Public/Granted day:2009-11-26
Information query