TD-LTE基站射频测试步骤详解 - 图文(5)

-38.170000 dBFS (square unit)

C0 Output Power = 23.710000 dBm(0.23W) ,the digital power of carrier 0 before DUC is = -34.220000 dBFS (circle unit), -37.220000 dBFS (square unit)

tx gain = 63.950000 dB, duc gain = -3.020000 dB C1Output Power = NO CARRIER Configured C2Output Power = NO CARRIER Configured C3Output Power = NO CARRIER Configured #command:CLI_OK #return value:void

> /radioc/gainc/txPwrShow

---- TX1 ------------------------------------

Total Output Power = 27.010000 dBm(0.50W), the digital power after DUC is = -34.050000 dBFS (circle unit), -37.050000 dBFS (square unit)

C0 Output Power = 24.680000 dBm(0.29W) ,the digital power of carrier 0 before DUC is = -33.360000 dBFS (circle unit), -36.360000 dBFS (square unit)

tx gain = 64.060000 dB, duc gain = -3.020000 dB C1Output Power = NO CARRIER Configured C2Output Power = NO CARRIER Configured C3Output Power = NO CARRIER Configured ---- TX2 ------------------------------------

Total Output Power = 25.770000 dBm(0.38W), the digital power after DUC is = -35.170000 dBFS (circle unit), -38.170000 dBFS (square unit)

C0 Output Power = 23.700000 dBm(0.23W) ,the digital power of carrier 0 before DUC is = -34.220000 dBFS (circle unit), -37.220000 dBFS (square unit)

tx gain = 63.940000 dB, duc gain = -3.020000 dB C1Output Power = NO CARRIER Configured C2Output Power = NO CARRIER Configured C3Output Power = NO CARRIER Configured #command:CLI_OK

16．IOT测试MIMO测试的PDSCH固定传输模式测试修改database

在SecureCRT中搜索 1). isInterTransmissionModeSwitchingEnabled即TM378，删掉原来的TM378switchingDisabled，改成disabled;

2). tm3，改成tm2.

17．database中修改上下行config配置

下面是上下行配置1和配置2的各参数，要配那个就按照表格的哪一列配置

Object Name Param identity recommaned value cfg2 sc0 16 16 prachFrequencyOffset=3 recommaned value for cfg1 sc0 32 32 prachFrequencyOffset=6 CellL1ULConfTDD srsSubframeConfiguration CellL2ULConf CellL2ULConf CellRachConf aperiodicCQIuserListMaxSizeInULS maxNbrULFSUsers prachFrequencyOffset CellRachConf LteCellTDD CellL2DLConf CellL2DLConf RadioCacCell rACHMessage3StartingPRBIndex subframeAssignment maximumFSSUsers MaxNbrOfUsers rACHMessage3Starting PRBIndex=3 sa2 16 100 rACHMessage3Starting PRBIndex=6 sa1 32 32 100 16 maximumUsersInACQIListFromDLScheduler 特殊子帧配置就改下面参数就行，一个是5的一个是7的。

LteCellTDD specialSubframePatterns ssp5 ssp7 18. IOT测试，修改database中基站建立连接后release

isTrafficBasedContextReleaseAllowed=true/false

19.IOT测试 PCRF建立转载操作

登录PCRF平台

用户名和密码都为tpaadmin(或者root/Alcatel) 进入路径/opt/tpa/unsupported/bin，在此目录下ls. 会看到xml文件，对相应的qci文件进行vi，如下：

command=\

sessionId=\

destinationRealm=\sessionLifetime=\

-------------------------更改对应的IMSI号为使用的卡号

最后将更改完的文件保存，然后 ./startDiameterClients

./runDiameterClientCLI -c ./文件名.xml 就行了。

20.IOT测试LTE在实际应用中基于竞争与非竞争接入的区别

在实验室测试环境中，验证是否测试是否通过基于竞争或者非竞争接入，需要验证UE是否收到来自源基站侧发给UE的RRCConnectionReconfiguration message中mobilityControlInfo里面包含rach-ConfigDedicated参数，即RACHpreamble：竞争接入不含RACHpreamble；非竞争接入包含RACHpreamble。 用于竞争接入的事件：初始接入、重建立、切换、上行数据到达 用于非竞争接入事件：切换、下行数据到达、UE定位

实验室该测试需要修改基站database中LteCell/0-CellRachConf/0-contentionFreeRACHenabled=true/false 对于不同前导格式format，修改pRACHPreambleFormat

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