Linearity considerations for multi-standard cellular base station transmitters
Résumé
Contemporary cellular base stations are becoming increasingly multi-standard for improved efficiency and manageability. Primary among prospective multi-standard base station deployments will be those that are reconfigurable but also capable of simultaneous transmission of several cellular signals. The simultaneous transmission of multiple cellular signals however poses a challenge for design, in particular the linearity requirements of the transceiver. In order to identify the feasibility of multi-mode transmission, we present an overview of transmitter non-linearity (OIP3) requirements for future multi-standard, multi-carrier, macro-cell base stations based on first-order approximations, highlighting the dynamic range issue. Simulation and measurement results are also presented.
Mots clés
Multimode transmission
Multicarrier base station
Macrocell base station
Linearity consideration
First-order approximation
Dynamic range issue
Contemporary cellular base station
OIP3
Multistandard base station
Multistandard cellular base station transmitter
Simultaneous cellular signal transmission
Transceiver
Transmitter nonlinearity requirement
GSM
Linearity
Peak to average power ratio
Multiaccess communication
Base stations
Nonlinear distortion
Approximation theory
Cellular radio
Radio transceivers