US 8,897,723 B2 · System and method for modulating data adaptively using selection of multi antenna

Abstract

An adaptive modulation apparatus and method using a multiple antenna selection scheme are provided. The adaptive modulation method using the multiple antenna scheme includes: selecting one transmit antenna from a plurality of transmit antennas; determining a target transmission rate of the selected transmit antenna to transmit the determined target transmission rate to a multiple antenna reception apparatus; receiving, from the multiple antenna reception apparatus, feedback information including information regarding whether to accept the target transmission rate; and transmitting data to the multiple antenna reception apparatus using the received feedback information.

Claims5

Dependent claims

A method of operating a transmission apparatus, the method comprising:

transmitting a target transmission rate to a reception apparatus;
selecting one transmit antenna from a plurality of transmit antennas;
transmitting data to the reception apparatus using the selected one transmit antenna;
receiving, from the reception apparatus, feedback information including an antenna switching information, wherein the antenna switching information is generated based on comparison between a channel status and a threshold corresponding to the target transmission rate at the reception apparatus;
and
selecting another transmit antenna from the plurality of transmit antennas, when the antenna switching information indicates a request to switch a transmit antenna.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/672,738Filed 8 Aug 2008

Priority

KR 10-2007-008089610 Aug 2007

Published

US 2011/0028106 A13 Feb 2011

Granted

25 Nov 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04B 7/061
Antenna selection according to transmission parameters: using feedback from receiving side
H04B 7/0805
Using antenna selection: with single receiver and antenna switching
H04L 1/0001
Arrangements for detecting or preventing errors in the information received: systems modifying transmission characteristics according to link…
H04L 1/0003
By adapting the transmission rate: by switching between different modulation schemes

System and method for modulating data adaptively using selection of multi antenna

Life of this patent

System and method for modulating data adaptively using selection of multi antenna

Life of this patent

Abstract

Claims5