BASE STATION DEVICE AND TERMINAL DEVICE

WIPO Patent Application WO/2016/052031

A1

The objective is to improve symbol replica precision when symbol-level cancellation is performed in a receiver in downlink non-orthogonal access, with transmission being performed by multiplexing a transmission method having excellent characteristics during demodulation and a transmission method having excellent characteristics during decoding. This base station device is equipped with an addition unit that adds signals of a quantity exceeding the number of transmission antenna ports at the same time and the same frequency. The base station transmits from one or more transmission antenna ports, with the adding unit adding signals that have been generated by mutually different transmission methods. Furthermore, this terminal device, which receives a signal formed by adding signals that have been generated by mutually different transmission methods and that are of a quantity exceeding the number of transmission antenna ports at the same time and the same frequency, is equipped with: a demodulation unit that performs a demodulation process with respect to one or more mutually different transmission methods; a replica generation unit that generates a symbol replica by means of the output from the demodulation unit; and a cancellation unit that subtracts the symbol replica from the received signal.

NAKAMURA OSAMU
GOTO JUNGO
HAMAGUCHI YASUHIRO

PCT/JP2015/074424

April 07, 2016

August 28, 2015

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SHARP KK (JP)

H04J99/00; H04B7/06; H04J11/00; H04J13/18; H04L27/01

JP2012199933A	2012-10-18
JP2014154962A	2014-08-25

FUKUCHI TAKEO (JP)
Fukuchi Takeo (JP)

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