6.12e HS-DSCH (MAC-ehs) model for Multiflow Operation (FDD, Rel-11 or later)

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

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

The test model illustrates the relationship between various channels from logical channels to physical channels.

Figure 6.12e-1: Multiflow intra-NodeB HS-DSCH model

Figure 6.12e-2: Multiflow inter-NodeB HS-DSCH model

The model enables in the SS to configure Multiflow:

to configure HS-PDSCHs and HS-SCCHs on the serving cell, assisting serving HS-DSCH cell, secondary serving HS-DSCH cell and assisting secondary serving HS-DSCH cell;
to configure HS-DPCCH in the time reference cell only; either in the serving HS-DSCH cell or in the assisting serving HS-DSCH cell. For example in figures 6.12e-1 and 6.12e-2 the assisting serving HS-DSCH cell is the time reference cell;
to configure one MAC-ehs entity for intra-NodeB configuration or two MAC-ehs entities for inter-NodeB configuration. The MAC-ehs entities are referred to a nodeB_Id;
for each MAC-ehs entity, to configure HS-DSCH transport channel and MAC-ehs queues;
to define the H-RNTI value(s);
to define multiplexing of logical channels DTCHs & DCCHs onto MAC-ehs queues;
to map cells on a MAC-ehs entity indicated by nodeB_Id. When a cell is mapped to the MAC-ehs entity then data can be transmitted on the HS-PDSCH of that cell. When a cell is unmapped then it is deactivated and no data can be sent on HS-PDSCH.
the served RLC is nodeB and cell independent and is configured using cell-id=-1. During reconfigurations, cell changes and state transitions, the relevant counters in the RLC are maintained. In inter-NodeB configuration the RLC entity is connected to two MAC-ehs entities.

The assisting serving, secondary serving and assisting secondary serving HS-DSCH cells are configured with all common channels. The assisting serving cell is part of the UE active set. The serving and secondary serving HS-DSCH cells have the same downlink timing, and the same applies to the assisting serving and assisting secondary serving HS-DSCH cells. MIMO is not considered.

For RLC test cases, the test method specified in clause 6.5 is applied, the RAB is configured in TM mode on SS side. The following RB Ids are used within the system simulator, depending on the RLC mode, and length indicator size being simulated.

UE RLC mode	LI Size	RB Id
AM	7	tsc_RB_AM_7_RLC (-12)