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1. (US20090003466) System and method for mapping symbols for MIMO transmission

Office : United States of America
Application Number: 11631842 Application Date: 07.07.2005
Publication Number: 20090003466 Publication Date: 01.01.2009
Grant Number: 08588326 Grant Date: 19.11.2013
Publication Kind : B2
Prior PCT appl.: Application Number:PCTCA2005001057 ; Publication Number: Click to see the data
IPC:
H04B 7/24
H04B 7/00
H04L 27/00
H04L 27/04
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
24
for communication between two or more posts
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
7
Radio transmission systems, i.e. using radiation field
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27
Modulated-carrier systems
02
Amplitude-modulated carrier systems, e.g. using on/off keying; Single sideband or vestigial sideband modulation
04
Modulator circuits; Transmitter circuits
Applicants: Taherzadehboroujeni Mahmoud
Apple Inc.
Nikopourdeilami Hosein
Khandani Amir Keyvan
Tong Wen
Jia Ming
Zhu Peiying
Yu Dong-Sheng
Ma Jianglei
Inventors: Taherzadehboroujeni Mahmoud
Nikopourdeilami Hosein
Khandani Amir Keyvan
Tong Wen
Jia Ming
Zhu Peiying
Yu Dong-Sheng
Ma Jianglei
Agents: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
Priority Data: 60585583 07.07.2004 US
60601178 13.08.2004 US
CA05001057 07.07.2005 WO
Title: (EN) System and method for mapping symbols for MIMO transmission
Abstract: front page image
(EN)

Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.


Also published as:
WO/2006/002550