诺基亚GSM基站培训课件.ppt

Network on the background, boxes appear by animations 注：列表中的告警虽然都指向天馈部分，但导致告警触发的原因并不全是由于天馈故障所致，需结合现场实际处理原因分析判定。（如7603 ERxx DDU module has detected VSWR above major limit at ANT A/B，触发该告警也有可能由于ERxA双工器ANT A口或ANT B口硬件故障导致） 注:触发7606载频故障告警时，不可单纯归类于硬件故障，需结合现场实际处理原因分析判定。如：7606 ERxx DDU module has detected VSWR above major limit at ANT A,导致此告警触发的原因也有可能是因为天馈驻波过高引起。 Max power consumption values 6TRX: 6 * TRX 3 * baseband unit 3 * DDU (combining by-pass)  12 * MHA 2 * transmission units  4 * radios 12TRX: 12 * TRX 6 * baseband unit 6 * DDU (combining by-pass)  24 * MHA 4 * transmission units  8 * radios Nominal power consumption values 6TRX: 6 * TRX 3 * baseband unit 3 * DDU (combining by-pass)  12 * MHA 1 * transmission units 12TRX: 12 * TRX 6 * baseband unit 6 * DDU (combining by-pass)  24 * MHA 1 * transmission units  Cabinet is not EMC-shielded, the units are Internal cabling: only diversity cabling 0, 2, 3 or 4 short and thin cables inside the BTS BTS cabinet contains 1 master and up to 3 slave TRXs master TRX handles BCF functionalities master and slave TRXs are similar in first SW release TRX 1 is master TRX TRX addressing ? TRX 3 TRX 1 TRX 4 TRX 2 PWR TRE IF TRX TRX TRX TRX PWR TRE IF Power Supply Unit AC 230V AC 110V DC 36/48/60V Interface Unit Transmission Unit FC E1T1 FXC E1T1 75 ohm FXC E1T1 120/100 ohm FC RRI FXC RRI dummy Transceiver Units GSM 900 TRX GSM 1800 TRX GSM 1900 TRX dummy Fan Unit 比ULTRASITE省电30% 比ULTRASITE省电30% 可以进行功率叠加达到100W 可以解决覆盖海面、乡村 可以进行功率叠加达到100W 可以解决覆盖海面、乡村 Bias-T 用于给MHA供电 MHA放大上行信号 Bias-T 用于给MHA供电 MHA放大上行信号 Bias-T 用于给MHA供电 MHA放大上行信号 注：通常话务量情况下4+4+4配置基站仅耗电560W (测量环境：平均40%负荷，开启DTX) Ultrasite cabinet 4/4/4 - HxWxD (m) 1.8x0.6x0.62, 281Kg Flexi FCIA cabinet 8/8/8 - HxWxD (m) 1.8x0.6x0.6, 248Kg Flexi Stack 4/4/4 - HxWxD (m) 0.8x0.5x0.6, 150Kg 3、7607 .A、The transmitter output power is too low. B、The transmitter output power has dropped at least 3 dB. 触发原因：可能由于载