Morse Redundancy Solution

(b)ase:690F8000 – reference address for definition of Mobile stations

(m)ask:FFFF8000 – mask for definition of Mobile stations

(c)entre:690F7E05 – address of central application

Lo(w)/M-L:200promile – evaluation of RF load, less than 20% is level 3

Hi(g)h/H-M:600promile – 20% to 60% is level 2, more than 60% is level 1

(T)au:5000ms – auxiliary parameter for evaluating RF load

(o)wn load threshold:500bps – auxiliary parameter for evaluating data load

(S)ystem channel:OFF – switches on transmission of debug messages to the System channel ise 1

Base info (t)imeout:30sec – interval for sending packet base info to the RF channel

base-centre (e)cho timeout:0sec – interval for sending test pings to the centre – if no response returns transmission on the RFC is interrupted and the Mobile station switches to another Base

Apps: (b)ase:690F7E00 – reference address for definition of applications

Apps: (m)ask:FFFFFE00 – mask for definition of applications – packets sent to these addresses renew records in dynamic tables of Bases and Routers and prevent the transmission of a keep packet for the period DGemk

(c)entre:690F7E05 – address of central application – keep packets leave to this address

Base: (B)ase:690F0000 – reference address for definition of Bases

Base: (M)mask:FFFF8000 – mask for definition of Bases – only these addresses are accepted as a Base

(P)assive:OFF – with this setting station MR switches the antenna through the duplexer to MR or MW during a change of operation between the narrow and wide band, the signal is on SCC3

(P)assive: ON – MR does not give a signal for the duplexer

(h)ome frequency id:1 – number of the channel on which the Mobile station begins to search for a Base upon start up or upon a loss of connection

(r)etune timeout:30sec – the Mobile station does not switch between various frequencies before this time has elapsed; when switching between Bases from various locations on the same frequency this limitation does not apply (so-called rapid switch)

(k)eep timeout:30sec – in this interval the Mobile station sends a maintenance packet to the Centre to address DGemc

(p)ifka timeout:60sec – the parameter Crit is reduced for this time period for the Base with which problems occur in communication – this results in switching to another Base, if available

Lo(w)/M-L:200promile – limit for distinguishing the load levels 3 and 2 on the RF channel – for a load on the RFC for less than 20% of the time the level is 3

Hi(g)h/H-M:600promile – limit between level 2 and 1 – a load greater than 60% gives level 1

Load meas (T)au:5000ms – auxiliary parameter for evaluating RFC load

(o)wn load threshold:500bps – auxiliary parameter for evaluating data transfer load

debug via Event (L)og:OFF – record to debug messages to Event log

(0) OFF          ... off
(1) PROBLEMS     ... erroneous configuration of frequencies,
                     loss of location
(2) +RETUNE INFO ... (1)+ retuning to another Base 
(3) FULL DIAG    ... all messages

debug via (S)ystem channel:OFF – messages sent to System channel 1 (menu ise)

(0) OFF   ...off
(1) INFO  ...message about switching Bases, etc
(2) TRACE ...message sent with an interval of 1 sec  
(3) FULL  ...table mrm sent with in interval of 1 sec,
             heavy channel loading

Retune method parame(t)ers – parameters which are important for retuning to another Base:

Retune m(o)de:RSS/DQ – method of processing RSS and DQ when evaluating a Base

(0) RSS/DQ ...DQ has a weight according to DGemtD, 
              the weight of RSS is an increment to 1000
(1) DQ     ...other weights, under development

(D)q weigh [mode RSS/DQ]:700promile – weight DQ, weight RSS is 1000 – D

For all Bases at one location there is taken a common value of RSS and a common value of DQ.

(M)edia type setting – transmission media in individual channels are characterised by a four-bite character, for example:

MR:  0010 = 0x02
MW:  0101 = 0x05

meaning of bits from the left:
bit  3   - res
bit  2   - 0 channel preferred for transfer of individual packets
             (packet)
           1 channel preferred for transfer of a large amount
              of data (connection)
bity 1,0 - 00 ETH
           01 wide - wideband
           10 narrow - 25 kHz band
           11 microwave channel

Criterium (h)ysteresis:20promile – parameter Crit must change by at least this value in order to induce a change in channel

Dq transform curve: Kx(1):15 – for converting DQ values into a value used in the calculation a pair of abscissae defined by coordinates DQ/value are used: 0/0, Kx(1)/Ky(2), 31/1000.

Dq transform curve: Ky(2):950promile – second coordinate of conversion abscissae for DQ

Rss transform curve: Kx(3):85dBm – definition of conversion abscissae for RSS

Rss transform curve: Ky(4):800promile – second coordinate of conversion abscissae for RSS

Problem meas (T)au:15000ms – auxiliary parameter for the calculation of parameter Problem, a longer time increases the influence of historic values of the parameter Problem and slows down the reaction to new events

(P)roblem treshold:900promile – parameter Problem is calculated from more indicators, it rises particularly during unsuccessful communication with the centre. If the limit (P)roblem treshold is exceeded then Pifka status is set for this channel. This results in the Mobile station attempting to use a more suitable Base.

Problem (u)ncertainty treshold:100 [1/100] – together with parameter Problem the parameter Problem uncertainty is also calculated. Uncertainty drops with fresh data about successful or unsuccessful communication. Uncertainty cannot be greater than the limit set here in order to allow for the application of Pifka.

(r)ss:150promile – all criteria at the location are multiplied by this value (=0.15) with the exception of channel home (DGemh) in the case where RSS weakens to below -95dBm. This results in switching to channel home on which setting up communication to the next location is easier.

(p)ifka:250promile – the criterion of the channel to which status pifka was applied is multiplied by this value (=0.25). This results in the Mobile station switching to another Base if available.

(c)onnection:250promile – during the transfer of “connection” type data, i.e. a large volume of data, the criterion on channels unsuitable for this transfer is multiplied by this value (=0.25). An example of this are channels with parameter DGemtM0 = 2, i.e MR160.

pac(k)ets:650promile – during the transfer of “packet” type data, i.e. short packets, the criterion on channels unsuitable for this transfer is multiplied by this value (=0.65). An example of this are channels with parameter DGemtM0 = 5, i.e. MW160.

The result of the last two parameters is that narrowband (MR) modems deal with the transfer of short data and wideband modems (MW) remain available for the transfer of large volumes of data. These transfers to various Mobile stations can occur simultaneously.

(b)ase:690F0100 – comparative address for choice of base stations

(m)ask:FFFFFF00 – if any station which can be received on the RF 0 channel is to be taken as base, masked parts of the (b)ase parameter and the base station address must be equal, e.g. 690F0105

(c)entre:690F0233 – address of central station, where this mobile has to report to

(k)eep timeout:61sec – period (sec) for reporting to the central station (0 means no periodical reports are sent)