| 摘要 |
PROBLEM TO BE SOLVED: To obtain an accurate index of link balance at a low cost without the need for time-consuming re-configuration of the system. SOLUTION: In this measurement method, a test setup 30 that simulates many system configurations measures link performance of a CDMA(code division multiple access) personal communication system, a cellular system or other type of radio system. The measurement device includes a 1st attenuator that is placed in a common part of a reception line and a transmission line of a mobile station 32 that is moved in any system and a 2nd attenuator that is placed to either of a reception dedicated part of the reception line and a transmission dedicated part of the transmission line. The attenuation given by the 1st and 2nd attenuators is separated so as to introduce a different attenuation to the transmission line and the reception line, and the performance of a forward link and a reverse link of the system is measured while changing at least one attenuation of the 1st and 2nd attenuates, Since the configuration can separate the attenuation in the reverse link, the link balance state is efficiently and accurately decided. |
