发明名称 |
Transmitting device, receiving device, and signal processing method in radio communication system |
摘要 |
A radio communication system using an orthogonal frequency division multiplexing system, including: a baseband unit; and one or plural remote radio units coupled with the baseband unit through an interface; wherein the baseband unit includes a first sample frequency conversion part that performs a first sample frequency conversion processing that down-samples a transmitting signal transmitted through the interface, wherein the remote radio unit includes a second sample frequency conversion part that performs a second sample frequency conversion processing that up-samples a signal received through the interface, and wherein the baseband unit further includes an inverse fast fourier transform part that generates the transmitting signal by an inverse fast fourier transform, and a transmitter characteristic compensation part that conducts frequency characteristic compensation of the first sample frequency conversion processing and the second sample frequency conversion processing for a signal that has not been subjected to the inverse fast fourier transform. |
申请公布号 |
US9137079(B2) |
申请公布日期 |
2015.09.15 |
申请号 |
US201313740577 |
申请日期 |
2013.01.14 |
申请人 |
HITACHI, LTD. |
发明人 |
Tamaki Satoshi;Yano Takashi;Uwano Koki |
分类号 |
H04L27/28;H04L27/26;H04L25/03 |
主分类号 |
H04L27/28 |
代理机构 |
Baker Botts L.L.P. |
代理人 |
Baker Botts L.L.P. |
主权项 |
1. A radio communication system using an orthogonal frequency division multiplexing system, comprising:
a baseband unit; andone or plural remote radio units coupled with the baseband unit through an interface;
wherein the baseband unit includes a first sample frequency conversion part that performs a first sample frequency conversion processing that down-samples a transmitting signal transmitted through the interface, wherein the remote radio unit includes a second sample frequency conversion part that performs a second sample frequency conversion processing that up-samples a signal received through the interface, and wherein the baseband unit further includes an inverse fast fourier transform part that generates the transmitting signal by an inverse fast fourier transform, and a transmitter characteristic compensation part that conducts frequency characteristic compensation of the first sample frequency conversion processing and the second sample frequency conversion processing for a signal that has not been subjected to the inverse fast fourier transform. |
地址 |
Tokyo JP |