This document summarizes the parameters displayed in the TEMS software for monitoring GSM networks, including: 1. Current channel parameters like cell name, location details, frequencies, power levels, encryption, and call details. 2. Radio parameters measuring signal quality, including RxLev, RxQual, BER, and interference levels. 3. Timings for handoff and radio link monitoring. 4. Details of neighboring cells that may be considered for handoff. The parameters provide technicians insights into call quality, signal levels, and handoff configurations in the network.

1. TEMS PARAMETERS
1-Current Channel
Time: it is system time of computer.
Cell name: it displays the name of the sector which is serving according to the cellfile that is loaded in
TEMS.
CGI: it stands for the Cell Global Identity which is unique for every sector of the site. It consists of MCC,
MNC, LAC, and CI.
MCC. Mobile Country Code 0-999 (e.g. 410 in Pakistan)
MNC: Mobile Network Code 0- 99 (e.g. 04 for ZONG)
Location Area Code: 0-65535 (e.g 4302)
Cell Identity: 0-65535 (e.g. 11001)
Cell GPRS Support: tells sector is having GPRS or not. Values are YES or NO.
BAND: it tells in which Frequency Band mobile is operating e.g. 900/1800.
BCCH ARFCHN: It tells by which BCCH is the mobile station getting served.
TCH ARFCH: on which Traffic frequency call is going on.
BSIC: Base Station Identity Code. It is combination of Network Color Code (NCC 0-7) & Base Station Color
Code (BCC 0-7) e.g. 62. It is decoded by mobile on every Sync, Channel Message.
Mode: it shows in which state is mobile operating, idle, dedicated & packet.
Time Slot: on which time slot of current TCH call is going on. Viz. time slot no. of TRX.
Channel Type: Type of channel mobile is getting now. Like BCCH/SDCCH etc
Channel Mode: Shows mode of coding like speech full rate or half rate.
Speech Code: it shows FR for full rate, hr for half rate and EFR for enhanced full rate.
Ciphering Algorithm: it shows ciphering algorithm used by the system to protect data for privacy .e.g
cipher by A5/2.
Sub Channel Number: it is displayed at a time when mobile is on dedicated mode at time of call setup
when it is getting SDCCH at that time it shows which SDCCH is getting out of 8 available. E.g. 2
Hopping Channel: it shows that current sector is having hopping feature or not. Values are YES or NO.

2. Hopping Frequencies: it displays no. of freq. on which mobile is allowed to hop. Viz MA list for hopping
of that sector.
Mobile Allocation Index Offset (MAIO): It is the number which tells from which freq. from given MA list
for sector hopping has to be started. E.g. 0 means sector will start from first freq to hop.
Hopping Sequence Number (HSN): indicates sequence in which frequencies are allowed to hop from MA
list.0-63. 0 for Cyclic Hopping, 1-63 random hopping frequency sequences.
2-Radio Parameters
RxLev: Receiving level in terms of dbm that mobile is receiving from the site. Range of -30dBm to -
110dBm
RxQual: quality of voice which is measured on basis of BER. Range of RxQual 0-7.
FER: Frame Erasure Rate represents the percentage of frames being dropped due to high number of
non-corrected bit errors in the frame. It is indication of voice quality in network.
BER Actual: ratio of the number of bits errors to the total number of bits transmitted in a given time
interval. BER is a measurement for the voice quality in network. Depending on BER RxQual is measured
e.g BER 0 to 0.2% corresponds to RxQual 0. Max BER countable and useful is up to 12.8% which
corresponds to RxQual of max 7.
SQI: SQI is a more sophisticated which is dedicated to reflecting the quality of the speech (as opposed to
radio environment conditions). This means that when optimizing the speech quality in your network, SQI
is the best criterion to use. SQI is updated at 0.5s intervals. It is computed on basis of BER and FER. For
EFR, FR-21 &HR-17 are respectively ideal values.
C/I: the carrier-over-interference ratio is the ration between the signal strength of the current serving
cell and the signal strength of undesired (interfering) signal components. It should be at least>9.
MS Power Control Level: displays range of power control from 0 -8 depending upon network
design. E.g. 0 means no power control and 1 means level that is defined by operator.
DTX discontinuous transmission (DTX) is a mechanism allowing the radio transmitter to be
switched off during speech pauses. This feature reduced the power consumption of the
transmitter which is important for MS, and decreases the overall interference level on the radio
channels affecting the capacity of the network.
TA: Values that the base station calculates from access burst and sends to the mobile station
(MS) enabling the MS to advance the timing of its transmission to the BSSS so as to compensate
for propagation delay. Value of 0 means MS in radius of 550mt from BS.

3. RL Timeout Counter (cur): This parameter define the maximum value of the radio link counter
expressed in SACCH blocks. Range of 4-64 in step size of 4. It shows current value of RLT.
Decrease by 1 but increase by 2. When it reaches zero it result in normal DROP Call.
RL Timeout Counter (MAX): This parameters define the maximum value of the radio link counter
expressed in SAACH block. Range of 4-64 in step size of 4. It shows current value of RLT.
Normally 16, 24, 24.
MS Behavior Modified: this window shows current settings for the mobile station, for instance
whether handover is disabled or multiband reporting enabled.
Serving+ Neighbor
Cell Name: Name that describes the neighboring cell as per the cellfile.
ARFCHN: Channel number mobile receives as neighbor.
BSIC: BSIC of the neighboring cell.
RxLev: Receiving Level in dbm of neighboring cell.
C1 & C2: These are the cell path loss criterion and cell reselection criteria. Valid during idle mode of
mobile station.
C31 & C32: GPRS signal strength threshold criterion C31 and GPRS cell ranking criterion C32. Valid both
in packet idle and packet dedicated mode.