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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Also:
Measurement Tools for Radio Network
Optimization (RNO)