 |
善于提问，勤于回答，你也是专家
|
 |
问题已开启
(普通问题)
NOKIA设备TRX TEST和TRX LOOP TEST的原理和区别？
有没NOKIA的无线高手，请教下
TRX TEST
TRX LOOP TEST
ABIS LOOP TEST
的原理，即怎么测试的，能发现些什么问题。
另外这些测试间的区别也不是很清楚。
测试也有现场测试，远程指令测试（都在ZUB?里面）
他们之间是不会有不同······非常qqq
TRX TEST
TRX LOOP TEST
ABIS LOOP TEST
的原理，即怎么测试的，能发现些什么问题。
另外这些测试间的区别也不是很清楚。
测试也有现场测试，远程指令测试（都在ZUB?里面）
他们之间是不会有不同······非常qqq
NED资料，还不是很清楚
Running a TRX test
The TRX tests can be carried out for Nokia 2nd generation base stations and for Nokia Talk-family of base stations with the STM or with the RFTE. With the RFTE, the test can be carried out via cable. With the STM, the test can also be carried out via air, in addition to cable. For Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite base stations, the TRX test can be carried out without any test equipment. The TRX test is not possible for Nokia InSite base station.
The TRX test checks the radio frequency (RF), digital and analog parts of the BTS and measures how the transmitters and receivers are functioning. When the TRX test is carried out via air, the BTS's RX and TX antennas are also tested. The test gives information on radio level and quality, and this information is indicated as a result of the test. In the TRX test, the BTS sends data to the test equipment, RFTE or STM, which loops it back to the BTS. Thus, the RF signal of one radio timeslot (RTSL) is looped from the transceiver (TX) (transmitter combiner output) to the receiver (RX) (front end input). The TRX test reserves one traffic channel during the test.
The TRX test (performance) can be performed for Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite. It tests both diversity branches even if the diversity is not configured. Testing both of the diversity branches is possible because the loop is made via antenna coupling instead of antenna. TRX tests make a loop between the radio frequency part (RF) and the transmission unit (DTRU) or a loop between the RF part and the D-bus (in the case of a low cost DTRU). The test only take 5 seconds. For Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite the test reserves two traffic channels.
The result of the test can be PASSED, FAILED or INCONCLUSIVE. If the test result is FAILED, check that the threshold values are reasonable. If the test result is INCONCLUSIVE, check the reason field of the test report.
The test results are reported locally at the BSC site as alarm printouts and they are also stored in the BSC's test report history. Test results are stored for the TRX that has been tested. Failed measurement results are reported as alarms. If the TRX test is FAILED, the alarm 7752 (TRX TEST FAILED) is set. By default, this alarm is blocked in the BSC's alarm system. If the TRX test (performance) is FAILED, the alarm 7735 (TRX TEST FAILED) is set. You can modify the PASSED/FAILED threshold limits with the MML commands of the UC command group.
Running a TRX loop test
The TRX loop test can be carried out with Nokia Talk-family of base stations and Nokia PrimeSite without test equipment. The TRX loop test tests the RF parts of the BTS, and A/D and D/A conversions. The TRX is looped from the TX to the RX inside the TRX so that complete TX and RX chains are tested. The TRX loop test reserves two traffic channels during the test.
The test results are reported locally at the BSC site as alarm printouts and they are also stored in the BSC's test report history. FAILED measurement results are reported as alarm 7753 (TRX LOOP TEST FAILED). By default, this alarm is blocked in the BSC's alarm system. You can modify the PASSED/FAILED threshold limits with the MML commands of the UC command group.
Running a TRX test
The TRX tests can be carried out for Nokia 2nd generation base stations and for Nokia Talk-family of base stations with the STM or with the RFTE. With the RFTE, the test can be carried out via cable. With the STM, the test can also be carried out via air, in addition to cable. For Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite base stations, the TRX test can be carried out without any test equipment. The TRX test is not possible for Nokia InSite base station.The TRX test checks the radio frequency (RF), digital and analog parts of the BTS and measures how the transmitters and receivers are functioning. When the TRX test is carried out via air, the BTS's RX and TX antennas are also tested. The test gives information on radio level and quality, and this information is indicated as a result of the test. In the TRX test, the BTS sends data to the test equipment, RFTE or STM, which loops it back to the BTS. Thus, the RF signal of one radio timeslot (RTSL) is looped from the transceiver (TX) (transmitter combiner output) to the receiver (RX) (front end input). The TRX test reserves one traffic channel during the test.
The TRX test (performance) can be performed for Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite. It tests both diversity branches even if the diversity is not configured. Testing both of the diversity branches is possible because the loop is made via antenna coupling instead of antenna. TRX tests make a loop between the radio frequency part (RF) and the transmission unit (DTRU) or a loop between the RF part and the D-bus (in the case of a low cost DTRU). The test only take 5 seconds. For Nokia MetroSite, Nokia Flexi EDGE, and Nokia UltraSite the test reserves two traffic channels.
The result of the test can be PASSED, FAILED or INCONCLUSIVE. If the test result is FAILED, check that the threshold values are reasonable. If the test result is INCONCLUSIVE, check the reason field of the test report.
The test results are reported locally at the BSC site as alarm printouts and they are also stored in the BSC's test report history. Test results are stored for the TRX that has been tested. Failed measurement results are reported as alarms. If the TRX test is FAILED, the alarm 7752 (TRX TEST FAILED) is set. By default, this alarm is blocked in the BSC's alarm system. If the TRX test (performance) is FAILED, the alarm 7735 (TRX TEST FAILED) is set. You can modify the PASSED/FAILED threshold limits with the MML commands of the UC command group.
Running a TRX loop test
The TRX loop test can be carried out with Nokia Talk-family of base stations and Nokia PrimeSite without test equipment. The TRX loop test tests the RF parts of the BTS, and A/D and D/A conversions. The TRX is looped from the TX to the RX inside the TRX so that complete TX and RX chains are tested. The TRX loop test reserves two traffic channels during the test.The test results are reported locally at the BSC site as alarm printouts and they are also stored in the BSC's test report history. FAILED measurement results are reported as alarm 7753 (TRX LOOP TEST FAILED). By default, this alarm is blocked in the BSC's alarm system. You can modify the PASSED/FAILED threshold limits with the MML commands of the UC command group.
提问者:
• 2206机柜设备:载频，机柜风扇都换了。载频槽位也改了。小区功率也修改过了。始终还是要出TRX2A25,TX1B27。 除了以上解决方案外请问还有什么方法可以解决 2016-08-20
• 2206机柜设备:载频，机柜风扇都换了。载频槽位也改了。小区功率也修改过了。始终还是要出TRX2A25,TX1B27。 请问还有什么方法可以解决 2016-08-20
• 爱立信6601设备总是出现掉小区，要么就出TRX2A45,将硬件更换后用不了多久又掉了。或者又出告警，而且是小区之间轮换着出这样的问题，软件版本也升级了。CF卡也换了。IDB也重新加载了。DUG也换了 2016-06-12
• 爱立信设备RBS TRX 2A 23告警 2015-10-12
• 爱立信rbs2206设备，载频出TRX2a23告警，更换载频后其他载频又出同样的高警，怎么回事 2014-12-18
• RBS6601设备，经常同时出CF2A87，TRX2A45，TRX1A36这三个告警，求大师解 2014-01-18
• 爱立信6000设备一个载频中的2个TRX本端 2013-12-01
• 爱立信6601设备出现TRXC2A19告警怎么处理 2013-09-21
• 2206机柜设备:载频，机柜风扇都换了。载频槽位也改了。小区功率也修改过了。始终还是要出TRX2A25,TX1B27。 请问还有什么方法可以解决 2016-08-20
• 爱立信6601设备总是出现掉小区，要么就出TRX2A45,将硬件更换后用不了多久又掉了。或者又出告警，而且是小区之间轮换着出这样的问题，软件版本也升级了。CF卡也换了。IDB也重新加载了。DUG也换了 2016-06-12
• 爱立信设备RBS TRX 2A 23告警 2015-10-12
• 爱立信rbs2206设备，载频出TRX2a23告警，更换载频后其他载频又出同样的高警，怎么回事 2014-12-18
• RBS6601设备，经常同时出CF2A87，TRX2A45，TRX1A36这三个告警，求大师解 2014-01-18
• 爱立信6000设备一个载频中的2个TRX本端 2013-12-01
• 爱立信6601设备出现TRXC2A19告警怎么处理 2013-09-21
问题答案
( 2 )
25
32 
| 联系我们 - 问通信专家 | Powered by MSCBSC 移动通信网 © 2006 - |