Hybrid Test Environment for GPRS-handling in Regional Processors
When adding General Packet Service (GPRS) to the GSM infrastructure,
the Base Station Controller (BSC) has to have a new part, the Packet
Control Unit (PCU), to handle this new interface. The PCU is based on
a new type of Regional Processor, the RPP. To test the software in the
RPPs, a hybrid test environment was created. This hybrid test
environment has the capacity to verify the software to some extent. To
be able to test on a higher level and to increase the availability of
the hybrid test environment, it had to be rebuilt. This work aimed to
rebuild the hybrid test environment and integrate/test the new parts
needed. The new parts were the Central Processor simulator (SEA), the
group switch (GS4M) and the traffic simulator (TSS2000). The result
of the SEA and GS4M integration was a "new" hybrid test environment
that has an increased availability. This means that the RPP can be
reached from the CP (SEA) and up to 7 users per RPP magazine can use
the switching part at the same time and up to 16 RPP magazines can be
connected to the switch. In the "old" hybrid test environment only one
user could use the switching part. The TSS2000 is needed in two
versions, one software and one hardware based, and how to connect
these two are left to be investigated. The hardware TSS2000 was not
available in the end of this work. To be able to test on a higher
protocol level and save many expensive hours in the AXE target
environment, the integration of TSS2000 should proceed.
Jörgen Dahlqvist
2000
Page responsible: webmaster
Last updated: 2021-11-10
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