document.xls 文文文文 07/20/2022 文文文文 文文文文文文文文 ， 文1文 文 ， 2文 Check List SN Check Items Check Method Check Result OMC Information Collection 1 Uplink RF sensitivity 2 3 4 5 6 7 8 Site visit and information collection 10 Visit the site 11 12 MML command: DSP RFDESPARAM / DSP DESENS Uplink Attenuation Value MML command: LST RXATTEN Check the TMA gain(if TMA used) MM command: LST TMAGAIN whether nearby sites also have the same high RTWP feature check the RTWP counter or realtime RTWP monitor Describe the RTWP feature (like it is always high or some times high ). What is the RTWP range MML command: STR RTWPRTTST (NodeB LMT) real time RTWP monitor (both primary and secondary RTWP) analyze the interference feature compare the traffic load with the RTWP. Check whether high traffic or interferece cause the high RTWP. LMT uplink frequecny scannig do the scanning in NodeB LMT (need block the sector) Check the intermodulation MML command: SET TXSW switch off the downlink tansmit power and monitor whether interference disapper or not Whether 3G system shared antenna with 2G or not? Whether TMA used or not? Whether repeater is located nearby? whether primary and secondary RTWP are both have high swap the primary feeder with the secondary feeder to check whether high RTWP swap or not. differentiate internal or external interference Disconnect the jumper from the cabinet and then monitor the RTWP.
Check ListCheck ListSNCheck ItemsCheck MethodCheck
ResultRemarkOMC Information Collection1Uplink RF sensitivityMML
command: DSP RFDESPARAM / DSP DESENS2Uplink Attenuation ValueMML
command: LST RXATTEN3Check the TMA gain(if TMA used)MM command: LST
TMAGAIN4whether nearby sites also have the same high RTWP
featurecheck the RTWP counter or realtime RTWP monitor5Describe the
RTWP feature (like it is always high or some times high ). What is
the RTWP rangeMML command: STR RTWPRTTST (NodeB LMT)real time RTWP
monitor (both primary and secondary RTWP)6analyze the interference
featurecompare the traffic load with the RTWP. Check whether high
traffic or interferece cause the high RTWP.7LMT uplink frequecny
scannigdo the scanning in NodeB LMT (need block the sector)8Check
the intermodulationMML command: SET TXSWswitch off the downlink
tansmit power and monitor whether interference disapper or notSite
visit and information collection10Visit the siteWhether 3G system
shared antenna with 2G or not? Whether TMA used or not? Whether
repeater is located nearby?11whether primary and secondary RTWP are
both have highswap the primary feeder with the secondary feeder to
check whether high RTWP swap or not.12differentiate internal or
external interferenceDisconnect the jumper from the cabinet and
then monitor the RTWP.
