Radio communication system, home gateway, bidirectional communication system, and method for stabilising a sideband signal

摘要

A radio communication system comprises a carrier oscillator (101; 201; 301) configured to generate a carrier signal (SC) at a carrier frequency (fC), a sub-carrier oscillator (102; 202; 302) configured to generate a sub-carrier signal (SSC) at a sub-carrier frequency (f1), and a phase error detection means (106, 107, 108; 206, 207, 208; 306, 307, 308) configured to generate an error-indicator (Vε) corresponding to a phase error (ε)of a mixed signal (SM) comprising a mixing product of the carrier signal (SC) and the sub-carrier signal (SSC). The sub-carrier oscillator (102; 202; 302) is implemented as a voltage-controlled-oscillator (102; 202; 302) being controlled by the error-indicator (Vε) of the phase error detection means (106, 107, 108; 206, 207, 208; 306, 307, 308).