7.1.11 HS-DSCH MAC-ehs with Multiflow

34.123-13GPPPart 1: Protocol conformance specificationRelease 15TSUser Equipment (UE) conformance specification

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

7.1.11.1 Maximum number of re-ordering SDUs with inter-Node B operation on two cells on one frequency

7.1.11.1.1 Definition and applicability

A UEs that support Multiflow operation on two cells on one frequency.

7.1.11.1.2 Conformance requirement

The UE behaviour is unspecified, if any of the following conditions are met when Multiflow is not configured or when intra-Node B Multiflow is configured:

– if reordering SDUs in one TTI belong to more than 3 priority queues,

– if the TSN field extension for MAC-ehs entity is not configured and MAC-ehs PDU(s) received during one TTI contain more than 26 reordering SDUs, or,

– if the TSN field extension for MAC-ehs entity is configured and

– up to 3 secondary serving HS-DSCH cells are configured and MAC-ehs PDU(s) received during one TTI contain more than 44 reordering SDUs; or

– more than 3 secondary serving HS-DSCH cells are configured and MAC-ehs PDU(s) received during one TTI contain more than 64 reordering SDUs.

The UE behaviour is unspecified, if any of the following conditions are met for each of the MAC-ehs entities when inter-Node B Multiflow is configured:

– if reordering SDUs in one TTI belong to more than 2 priority queues,

– if MIMO is not configured for this MAC-ehs entity and

– if one HS-DSCH cell is configured for this MAC-ehs entity and MAC-ehs PDU(s) received during one TTI contain more than 16 reordering SDUs, or,

– if more than one HS-DSCH cell is configured for this MAC-ehs entity and MAC-ehs PDU(s) received during one TTI contain more than 26 reordering SDUs, or,

– if MIMO is configured for this MAC-ehs entity and

– MAC-ehs PDU(s) received during one TTI contain more than 26 reordering SDUs.

Reference(s)

TS 25.321 clauses 9.1.4

7.1.11.1.3 Test purpose

To confirm that the UE can handle the maximum number of re-ordering SDUs per each MAC-ehs entity.

7.1.11.1.4 Method of test

Initial conditions

System Simulator: 2 cells

Node B 1: Cell 1 (f1, serving HS-DSCH cell)

Node B 2: Cell 2 (f1, assisting serving HS-DSCH cell)

Tcell of Cell 1 is set to 0 chips, Tcell of Cell 2 is set to 1280 chips (0.5 slots). Ciphering off.

User equipment:

CELL_DCH (state 6-18 PS-DCCH+DTCH E-DCH/HS-DSCH) under condition A44 as specified in clause 7.4 of TS 34.108 [9]. The procedure P9b in TS 34.108 [9], clause 7.4.2.4a is executed to add Cell 2 in the active set.

The radio bearer is placed into UE test loop mode 1.

Related ICS/IXIT statement(s)

– UE supports FDD

– UE category supports Multiflow HSDPA operation on two cells on one frequency (UE Category 21-24)

Test procedure

The UE is in CELL_DCH state with configured Multiflow operation, SRBs are mapped to DCH/DCH.

The SS constructs and sends DL RLC PDUs such that there are 16 re-ordering MAC-ehs SDUs transmitted in the same TTI for MAC-ehs entities associated with Cell 1 and Cell 2. The SS checks that all the RLC PDUs are looped back.

Expected sequence

Step	Direction		Message	Comments
	UE	SS
1			MAC-ehs PDU containing 16 re-ordering SDUs sent over Cell 1. MAC-ehs PDU containing 16 re-ordering SDUs sent over Cell 2.	MAC-ehs PDUs for Cell 1 and Cell 2 are sent at the same moment of time.
2			Loop backed all RLC PDU’s

Specific Message Contents

None

7.1.11.1.5 Test requirements

In Step 2, SS receives loop backed all RLC PDUs.

7.1.11.2 Maximum number of re-ordering SDUs with inter-Node B operation on three cells on two frequencies

7.1.11.2.1 Definition and applicability

All UEs that support Multiflow operation on three cells on two frequencies.

7.1.11.2.2 Conformance requirement