Patent ID: 8977219
Filing Date: 2015-03-10
Classification: H04B

Abstract:
1. A method for wireless communication, comprising: selecting a subset of a plurality of antennas in a plurality of remote RF modules included in a wireless communication device based on a measured signal characteristic, each of said plurality of remote RF modules receiving IF signals via one or more coaxial lines, said IF signals being amplified analog IF signals that were amplified by a power amplifier in a final amplification stage; communicating control signals for said plurality of remote RF modules using the one or more coaxial lines; generating first in-phase and quadrature phase signals by directly upconverting said received IF signals; filtering said first in-phase and quadrature phase signals; upconverting said filtered first in-phase and quadrature phase signals into RF in-phase and quadrature signals; summing said RF in-phase and quadrature signals; and transmitting said summed RF in-phase and quadrature signals via said selected one or more antennas without using another power amplifier.