Radio reception device and radio reception method in radio communication system

摘要

A radio reception device and a radio receiving method are provided that, when a frequency band assigned to a different radio system is shared, can effectively suppress the influence of interfering waves from this different radio system. A radio reception device is one in a second radio system (11) that can use a frequency band assigned to a first radio system (10), and includes: a desired wave channel estimation section (110) that generates, based on reception signals, first channel estimate values (Es) of interfering wave components arriving from the first radio system, which uses a different communication scheme from that of the second radio system; an interfering wave channel estimation section (120) that generates, based on the reception signals, second channel estimate values (Ei) of desired wave components received through the communication scheme of the second radio system; and an equalization section (105) that suppresses the interfering wave components by using the first and second channel estimate values.

主权项

1. A radio reception device that uses a frequency band assigned to a first radio system in a second radio system, comprising:
a memory storing instructions; and a processor configured to execute the instructions to: generate, based on reception signals, first channel estimate values of interfering wave components arriving from the first radio system, wherein the first radio system employs a different communication scheme from that of the second radio system, the generating the first channel estimate values including:
generating channel estimate values in accordance with the communication scheme of the first radio system; andconverting the channel estimate values into channel estimate values in conformity with the communication scheme of the second radio system, thereby generating the first channel estimate values; generate, based on the reception signals, second channel estimate values of desired wave components received through the communication scheme of the second radio system; and suppress the interfering wave components by using the first and second channel estimate values.