|
A cornerstone of TEMS Investigation 8.0 was the integration of CDMA support (previously available in TEMS Investigation CDMA), along with an array of important new measurement, data collection, and scanning features. Now the latest release greatly strengthens CDMA support, adding information elements, events, and new scan modes.
 Extended CDMA data logging
TEMS Investigation 8.1 logs many more information elements
(about 160) and events than before, with emphasis on EV-DO. Extended-coverage areas include:
- Access probe information
- Finger information (cdma2000 and EV-DO)
- Active set (cdma2000 and EV-DO)
- Details on forward and reverse link FCH, SCH0, and DCCH channels
- cdma2000 soft handoff events
Enhanced CDMA scanning
In a new “follow phone” mode, the scanner follows a CDMA phone connected to the application, constantly scanning the RF channel and PN offset being used by the phone. The collected data is extracted into new information
elements – polluter search (with recent history) and missing neighbor information. Also added: an RSSI (CW) scan mode and information elements.
Support for new devices
TEMS Investigation 8.1 supports PCTel SeeGull EX and PCTel LX WCDMA 900 scanners, as well as these user terminals:
- Nokia 6125 (replacing Nokia 6230i, 6230)
- Nokia 7376 (WCDMA 1700/2100, Band IV)
- Qualcomm TM 6280, Band IV
- Qualcomm chipset-based:
– Novatel Merlin (V620/S620)
– Option GT MAX HSUPA
– Samsung u520
– Toshiba 903T
– Kyocera KPC650
– AnyDATA D10 (CDMA 450)
– Sierra Wireless AirCard 595U
Video streaming and VSQI enhancements
Video streaming can be handled through an RTSP proxy, and streaming sessions are saved exactly as they unfolded, with rebuffering events retained. The static Video Streaming Quality Index (VSQI) measurements have been refined, in conformance with ITU-T standardization to which Ericsson has been a major contributor. Enhancements consist of a closer match with subjective quality ratings, plus improved handling of both packet loss and the combined effects of rebuffering and packet loss.
Missing neighbor detection based on scanner-decoded system information (UMTS)
Several missing neighbor events based on both phone data and scanner data were already part of TEMS Investigation, and this release adds events from a different source. Now operators can identify missing neighbors in both GSM and WCDMA using only a PCTel SeeGul scanner, without relying on a cell file to indicate existing neighbor relationships.
In the new feature, the scanner decodes system information broadcast by the cell. Because the information contains the cell’s neighbor list, the cell file need not be loaded into the application.
Logfile post-processing with Python scripts
This potent new feature gives users the freedom to handle post-processing as they require. Using Python scripts (samples are packaged with the application), a new API can extract arbitrary data from logfiles, data which can include information elements, events, or plain-text decoding of messages. Users can compose customized reports, compute KPIs of their own design, or create any data-driven functions they may choose.
HSUPA information elements
Additions consist of new transmission rate, retransmission rate, and the number of times transmission was limited by power or serving grant.
TCP per Cell (Sony Ericsson UEs)
Power control commands from each cell in the active set can be inspected separately, instead of aggregated power control decisions resulting from the combining of cells in soft handoff. Cell-specific commands can be read from the plain-text decoding of the TCP per Cell Mode report delivered by Sony Ericsson UEs.
|
