Antenna System and trouble-shootingNiuYu2011-02

AgendaKnow about RET, ATMA and its accessories

Go over the solutions

The faults we might meet

Q&A

Basic Knowledge

AISG: Antenna Interface Standards Group Version: AISG 1.1, 2.0RET: Remote Electrical Tilt TMA: Tower-mounted amplifierATMA:AISG-TMA

Why do we use AISG devices?

Antenna devices can be controlled and monitored remotelySave time and costWork becomes easierNo need to stop the current serviceImprove accuracy

ATMA/reuseTMA/RET types in THU

ATMA3G 2100MHzCombaTA-W12FDA-AZ2G 1800MHzCombaTA-D12FDA-AZ2G 900MHzAndrewE15R01P97TMAGSM3G900MHzEricssonKRY11214/141800MHzNSNLGP10712900MHzNSNCS72965900MHzNSNLineComTTA-09900MHzNSNLGP104011800MHzEricssonKRY11261/21800MHzNSNLGP10743RET8601011886010148THURET

3G 2100MHz ATMA Outline

2G 1800MHz ATMA Outline

2G 900MHz ATMA Outline

RCU(KATHREIN86010118) Outline

NSBT / ASBT

NSBT / ASBTNSBT: NodeB-side Smart Bias Tee

ASBT: Antenna-side Smart Bias Tee

Used for AISG-TMA, gets power from RSU/RRU, can transfer signal from BTS.

Bias Tee BT used for common TMA, gets power from TAM, cant transfer controlling signal from BTS.

AISG Cable

AISG-DB9 Cable

SMA Cable

AISG-TMA and RET connection

NSBT

NSBT

NSBT

ADTMA

ADTMA

ADTMA

RCU

RET

1710-2170MHz

RXD

TX/RX

-45

+45

RET

1710-2170MHz

RXD

TX/RX

-45

+45

RET

1710-2170MHz

RXD

TX/RX

-45

+45

Sector1 Sector2 Sector3

Node B

TX/RX

RXD

TX/RX

RXD

TX/RX

RXD

AISG special cable

Jumpers-DM-DM

JumpersDMR-DM-2m

7/8 FeederDM-DM

AISG cable

JumpersDMR-DF-3m

Jumpers-DM-DF-0.5m

JumpersDF-DF-0.5m

reused-TMA connection

The typical faultsRTWP abnormal alarm TMA and RET cannot be detected (scanned)TMA communication link brokenRET communication link brokenTAM channel-n over-current alarmTAM channel-n power alarmTAM channel-n power off

RTWP alarm solutionsPossible reasons:Parameters in In-The gain should be accordance with TMA(12db)No power supply to TMA;Failure in communicating with AISG-TMA or problems on TAM board is the most common reason for RTWP alarms;

How to check output power? Fig.1 200V DC level for AISG device voltage test

How to check output power in NSBT?Check if NSBT has power output. When you do test, let NSBT connect with RSU/RRU through AISG cable, test the voltage between core and ground of NSBT.

Diagram of core and ground A: core B: Ground

RTWP alarm solutionsRTWPRTWPRTWPRTWPRTWP- - RTWPRTWP

RTWP alarm solutionsRssi & compshow

ATMA or RET cannot be detectedInstallationNSBT model is not compatible with TMANSBT type is BTM4S2 in THUCheck the voltage of RSU28V for standard AISG TMA and RET device.

ATMA communication link brokenPossible reasonsInstallationThe NSBT model is not correctThe ATMA is DAMAGED No TMA

RET communication link brokenPossible reasonsInstallationATMA communication failureThe RET has faultNo RET

How to avoid these faults3C is the most importantCheck ---- materials and partsClarify ---- call the guys working war room to CLARIFY the solutionCorrect ---- Installation

How to get info to R&D?RTWP problemtelnet CC ip, rlogin to RSUInput rssi and compshowCopy the printed info and take picture of Scanning result Send these info to R&D.

Q&A

OPEN the file FF TMA reusing solution V1.4.xls and show the TMA pictures. Then explain the different RSU RX/TX and PORT0/BTS1 of TMA*Measure the voltage of RSU between No.6 and No.7. The voltage is 12V for Ka78110177 and MB3G-DTMA-B60-001, and the voltage is 28V for the normal ALD.*CC->rlogin "200.254.0.101"RTR->rssiCh0 Temp:415 RSSI:-10574 -10554 -10595Ch1 Temp:415 RSSI:-10554 -10565 -10594Current VGA: 0/0 ATT: 0/0 (0.1dBm)Abnormal count: 0/0Max VGA+ATT: 60/60(0.1dBm)RSSI overflow count: 29/20value = 27 = 0x1bRTR->compshowFPGA Gain comps: OnForward Power comps: OnReverse Power comps: OnBoard output comps: OnFeedback temp comps: OnFeedback temp comps rate: 1.006670RSSI Frequancy comps: OnRSSI Temperature comps: OnRSSI Temp comps (0.01db): 16RSSI Freq comps (0.01db): RX 0: -1070 -1130 -1189 RX 1: -1100 -1119 -1160RSSI PowerLine Port0 comps (0.01db): 2100RSSI PowerLine Port1 comps (0.01db): 2100value = 42 = 0x2a = '*'RTR->

*1, Abnormal SNRM frame of NS TMA(LGP16710, KA78110177 and MB3G-DTMA-B60-001)[255]SendMsg:7e 08 93 95 67 7e[ 1]RecvMsg:9c fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00[255]SendMsg:7e 09 93 4d 7d 5e 7e[ 1]RecvMsg:00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe

2, Normal SNRM frame of NS TMA[255]SendMsg:7e 09 71 51 ba 7e[ 1]RecvMsg:7e 09 71 51 ba 7e

3, Devices are not responded[255]SendMsg:7e 09 11 57 d9 7e

[255]SendMsg:7e 08 93 95 67 7e

[255]SendMsg:7e 09 11 57 d9 7e

[255]SendMsg:7e 08 93 95 67 7e

[255]SendMsg:7e 09 11 57 d9 7e

[255]SendMsg:7e 08 93 95 67 7e

4, shell commandsCC->rlogin "200.254.0.101"

RTR->StartCapturevalue = 1 = 0x1RTR->0x1bdaba0 (tShell): open file succRTR->RTR->StopCapturevalue = 32 = 0x20 = ' 'RTR->0x1bdaba0 (tShell): close record fileRTR->RTR->RTR->RTR->lldrwxrwxrwx 1 0 0 2048 Jan 2 2000 rru/drwxrwxrwx 1 0 0 2048 Aug 19 05:20 BSP/-rwxrwxrwx 1 0 0 8 Dec 27 1990 BSPCFG.ini-rwxrwxrwx 1 0 0 5859 Dec 27 1990 TxBout.txt-rwxrwxrwx 1 0 0 5965 Dec 28 1990 TxGain.txt-rwxrwxrwx 1 0 0 5123 Dec 28 1990 TxFwd.txt-rwxrwxrwx 1 0 0 7661 Dec 28 1990 RxRssiM.txt-rwxrwxrwx 1 0 0 7661 Dec 28 1990 RxRssiD.txt-rwxrwxrwx 1 0 0 5955 Dec 28 1990 TxRev.txt-rwxrwxrwx 1 0 0 4802 Dec 28 1990 VswrParam.txt-rwxrwxrwx 1 0 0 46 Aug 19 03:44 RTRCFG.ini-rwxrwxrwx 1 0 0 1620 Dec 28 1990 FileLog-rwxrwxrwx 1 0 0 52 Jan 2 2000 EEPROM.txtvalue = 0 = 0x0RTR->cd "bsp"value = 0 = 0x0RTR->RTR->RTR->RTR->cat "aisg.txt"[255]SendMsg:7e 08 93 95 67 7e[ 1]RecvMsg:9c fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00[255]SendMsg:7e 09 93 4d 7d 5e 7e[ 1]RecvMsg:00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe[255]SendMsg:7e 08 93 95 67 7e[ 1]RecvMsg:00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe[255]SendMsg:7e 09 93 4d 7d 5e 7e[ 1]RecvMsg:00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe[255]SendMsg:7e 08 93 95 67 7e[ 1]RecvMsg:fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe[255]SendMsg:7e 09 93 4d 7d 5e 7e[ 1]RecvMsg:00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe fe fe fe fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe 00 fe

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