8.16 Guidelines for CS voice over HSPA implementation

34.123-33GPPPart 3: Abstract test suite (ATS)TSUser Equipment (UE) conformance specification

For PDCP CS voice over HSPA tests, data are scheduled to ensure consistency between CFN and CS counter in downlink and to check CS counter value in uplink. Figure 8.16 provides the ASP sequence, CFN and CS counter handling.

Figure 8.16: ASP sequence for data scheduling in PDCP CS Voice over HSPA tests

Upon reception of data, the ASP RLC_UM_ScheduledDataInd includes:

– the CFN on which the data has been received by SS,

– the AMR PDU, including the csCounter in the header

In terms of the CFN and csCounter, the TTCN can check the delay between the received CFN and the csCounter.