US 2014/0153461 A1 · Envelope Tracker Driven Transmit Beamforming

Abstract

A method and telecommunication device in which the telecommunication device is provided with multiple antennas and power amplifiers to provide a beamformed transmit stage. An envelope tracking circuit helps achieve significant power savings in the power amplifier and can be used to provide the power supply for the multiple power amplifiers. A single envelope tracking power supply may be used to produce the supply voltage to the individual power amplifiers that operate on the transmit signal and its phase shifted variant. Accordingly, the user equipment experiences the benefits of both reduced power consumption using the envelope tracker and beam formed transmission.

Claims21

Dependent claims

A method comprising:

in a wireless communication device comprising a receiver, a transmitter, a plurality of power amplifiers coupled to a plurality of antennas and at least one envelope tracking power supply,
simultaneously transmitting from two or more power amplifiers of the plurality of power amplifiers, the two or more power amplifiers powered by a common envelope tracking power supply.

Dependencies are inferred from the claim text.

Facts

Application

13/930,202Filed 28 Jun 2013

Priority

3 Dec 2012

Published

5 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04W 52/0245
Using monitoring of external events, e.g. the presence of a signal: according to signal strength
Y02D 30/70
Reducing energy consumption in communication networks: in wireless communication networks
H04W
Wireless communication networks
Y02D
Climate change mitigation technologies in information and communication technologies [ict], i.e. information

Envelope Tracker Driven Transmit Beamforming

Life of this patent

Envelope Tracker Driven Transmit Beamforming

Life of this patent

Abstract

Claims21