Radio Network Optimization (RNO) Troubleshooting Tools

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TEMS Investigation TEMS Investigation is a drive test tool within the TEMS product family. It consists of a TEMS mobile station, a PC with the TEMS Investigation software and a GPS receiver. The uplink and downlink information on the air-interface is monitored and recorded together with the positioning data from the GPS. TEMS Investigation, here referred to as TEMS, is a very powerful tool for field measurements during troubleshooting in specific areas of the network.

MTR Mobile Traffic Recording (MTR) records the events and measurements on both the uplink and downlink connected to a certain subscription, which can be useful when a subscriber complains and the cause is to be investigated. MTR is also very useful together with TEMS. From TEMS geographical information can be retrieved but not from MTR.

CER Channel Event Recording (CER) measures interference on the frequencies defined in the cell and is used when the performance of the channel allocation strategy is investigated. Idle Channel Measurement (ICM) or Differential Channel Allocation (DCA) is required for this recording,

CTR Cell Traffic Recording (CTR) collects data about connections in specific cells. Certain events can be used as triggers and all communication on up- and downlink is recorded. CTR could be used if there are specific problems found in any cell, such as an abnormal number of Traffic Channel (TCH) drops.

GMLOG The GPRS/EGPRS Mobile Logging (GMLOG) function logs protocol information in the RLC/MAC and the BSSGP protocols for one whole cell or four individual mobiles. All relevant information is logged together with related internal events. The Mobile Logging function is
a valuable function for GPRS/EGPRS verification and detailed troubleshooting purposes. The function can be used by the operator staff to verify network functions and characteristics. The function gives the possibility to correlate A-bis and Gb-data. It displays BSC internal events, which is not possible with external protocol analyzers. The logging capability is high, due to the fact that the logged data is directly transferred from the RPP to the logging client via Ethernet.

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Measurement Tools for Radio Network Optimization (RNO)

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