| 摘要 |
A radio base station apparatus includes first and second shelves having a similar structure. The first shelf includes a first shelf current use system transmission signal processing circuit, a first shelf standby system transmission signal processing circuit and a first shelf radio transmitting section. The second shelf includes a second shelf current use system transmission signal processing circuit, a second shelf standby system transmission signal processing circuit and a second shelf radio transmitting section. The first shelf current use system transmission signal processing circuit generates a first inter-shelf signal from a first shelf current use system baseband signal, and generates a first shelf current use system spread signal from the first shelf current use system baseband signal and a second inter-shelf signal. The first shelf standby system transmission signal processing circuit generates a third inter-shelf signal from a first shelf standby system baseband signal, and generates a first shelf standby system spread signal from the first shelf standby system baseband signal and a fourth inter-shelf signal. The first shelf radio transmitting section has a first shelf antenna and generates a first shelf radio signal from the first shelf current use system spread signal and the first shelf standby system spread signal to transmits from the first shelf antenna. |
