SUPPLEMENTARY UPLINK FOR ENABLING HIGH POWER CLASS FOR FREQUENCY DIVISION DUPLEXING

Abstract

Techniques for supplementary uplink (SUL) to enable high power class for frequency division duplexing (FDD) are disclosed. In certain embodiments, a mobile device for a cellular network includes a front-end system that includes a first duplexer for a first frequency band that operates using FDD and a second duplexer for a second frequency band that operates using FDD. Additionally, the mobile device provides high power class for FDD by transmitting a transmit signal over an uplink frequency range of the first frequency band and receiving a receive signal over a downlink frequency range of the second frequency band. The first frequency band and the second frequency band can have a large frequency offset, for instance, at least five times the channel bandwidth of the transmit signal.

CPC Classifications