Patent ID: 9473187
Filing Date: 2016-10-18
CPC Classification: H04B

Claim Text:
1. A method, comprising: receiving, by a remote radio head (“RRH”), from a base station of a cellular network, a first set of modulated signals, wherein a first modulated signal, in the first set of modulated signals, and a second modulated signal, in the first set of modulated signals, are based on a first digital data stream received by the base station, the first and second modulated signals being phase-shifted and frequency-separated with respect to each other, the first and second modulated signals being copies of each other, except for the phase shift and frequency separation with respect to each other, wherein a third modulated signal, in the first set of modulated signals, and a fourth modulated signal, in the first set of modulated signals, are based on a second digital data stream received by the base station, the third and fourth modulated signals being phase-shifted and frequency-separated with respect to each other, the third and fourth modulated signals being copies of each other, except for the phase shift and frequency separation with respect to each other, the first set of modulated signals being modulated within a first carrier frequency band, the first set of modulated signals having been wirelessly transmitted by the base station to the RRH via the first carrier frequency band; generating, by the RRH, a second set of modulated signals based on the first set of modulated signals, the second set of modulated signals being modulated within a second carrier frequency band, the second carrier frequency band being different from the first carrier frequency band; and outputting, by the RRH, the second set of modulated signals to a user device.