METHOD FOR ENHANCED UPLINK TRANSMISSION HAVING LOW PAPR IN LTE-BASED MOBILE COMMUNICATION SYSTEM

摘要

Provided is a communication method for downlink transmission with a low peak to average power ratio (PAPR) and compatibility with long-term evolution (LTE)-based downlink transmission in an LTE-based mobile communication system in which the performance degradation may occur due to a high PAPR in multi-carrier transmission caused by non-linearity of a power amplifier in a base station including a satellite, to have the effects of supporting a terminal that reuses an existing terrestrial LTE chipset and a terminal that enables downlink reception with a low PAPR with no collision between the terminals, and of implementing an integrated satellite/terrestrial mobile communication system with a minimum change of an existing mobile communication system to ensure economic efficiency.

主权项

1. A downlink transmission method for an integrated terrestrial/satellite mobile communication system, the method comprising:
selecting, by a terminal, a frame; and transmitting communications, by the terminal, using a first downlink transmission scheme within a section of the frame available for downlink signal transmission of terrestrial mobile communication and using a second downlink transmission scheme having a lower peak to average power ratio (PAPR) than the first downlink transmission scheme within a section of the frame unavailable for downlink signal transmission of terrestrial mobile communication.