4.2 Common requirements of test equipment
36.5083GPPCommon test environments for User Equipment (UE) conformance testingEvolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Packet Core (EPC)Release 17TS
Mobile conformance testing can be categorized into 3 distinct areas:
– RF Conformance Testing.
– EMC Conformance Testing.
– Signalling Conformance Testing.
The test equipment required for each category of testing may or not be different, depending on the supplier of the test equipment. However, there will be some generic requirements of the test equipment that are essential for all three categories of test, and these are specified in this clause.
In addition, there will be requirements to test operation in multi-system configurations (e.g. EUTRAN plus UTRAN). However, these would not form a common test equipment requirement for the three test areas and are not considered in the present document.
The test equipment shall use the same number of Tx antennas for all parts of the tests, Initial condition and Test procedure, as specified in the minimum requirement.
4.2.1 General functional requirements
NOTE: This clause has been written such that it does not constrain the implementation of different architectures and designs of test equipment.
All test equipment used to perform conformance testing on a UE shall provide a platform suitable for testing UE’s that are either:
a) FDD Mode; or
b) TDD Mode; or
c) both FDD/TDD Modes.
All test equipment shall provide (for the mode(s) supported) the following minimum functionality.
– The capability of emulating a single E-UTRA cell with the appropriate channels to allow the UE to register on the cell.
– The capability to allow the UE to set up an RRC connection with the system simulator, and to maintain the connection for the duration of the test.
– The capability (for the specific test):
– to select and support an appropriate radio bearer for the downlink;
– to set the appropriate downlink power levels;
– to set up and support the appropriate radio bearer for the uplink;
– to set and control the uplink power levels.
4.2.2 Minimum functional requirements
4.2.2.1 Supported Cell Configuration
The System Simulator shall provide the capability to simulate a minimum number of cells (of the appropriate E-UTRA Mode) whose number and capabilities are governed by the test cases that need to be performed (test cases are defined in 3GPP TS 36.523-1 [18](Signalling), 3GPP TS 36.521-1 [21] (RF) and 3GPP TS 36.521-3 [34] (RRM). For this purpose test cases can be split into two different categories: Tests that require only one cell and Tests that require several cells.
To perform test cases requiring one cell, the system simulator must provide a cell offering the capabilities to perform all the test cases in this category.
To perform test cases requiring several cells, additional cells must be provided by the system simulator. The additional cells, however, need only provide a minimum set of capabilities so as to support the first cell in carrying out the multicell test cases.
The type and number of channels (especially physical channels) constitute an important set of capabilities for a cell. The following clauses list possible channels that may be supported by the SS. Each channel type, however, and the minimum number of channels needed are only mandatory if specific test cases require them.
The mapping between Logical and Transport channels is as described in 3GPP TS 36.321 [14]. Similarly the mapping between Transport channels and Physical channels is as described in 3GPP TS 36.211, TS 36.302 and TS 36.212. The reference measurement channels (mapping between Transport channels and Physical channels for PDSCH/PDCCH) are defined in 3GPP TS 36.521-1[21] annex A
4.2.2.1.1 Supported Channels
4.2.2.1.1.1 Logical channels
|
Logical channel |
Minimum number |
Comments |
|
BCCH |
1 |
|
|
BR-BCCH |
1 |
For testing of BL/CE UE. |
|
CCCH |
1 |
|
|
DCCH |
2 |
|
|
PCCH |
1 |
|
|
DTCH |
n <FFS> |
Depending on SS’s support for RB service testing (See clause 12 of 3GPP TS 36.523-1 [18] |
4.2.2.1.1.2 Transport channels
|
Transport channel |
Minimum number |
Comments |
|
BCH |
1 |
|
|
PCH |
1 |
|
|
RACH |
1 |
|
|
DL-SCH |
n <FFS> |
|
|
UL-SCH |
n <FFS> |
4.2.2.1.1.3 Physical channels
|
Physical channel |
Minimum number |
Comments |
|---|---|---|
|
PBCH |
1 |
Physical Broadcast Channel |
|
PCFICH |
1 |
The physical control format indicator channel carries information about the number of OFDM symbols used for transmission of PDCCHs in a subframe |
|
PDCCH |
1 |
The physical downlink control channel carries scheduling assignments and other control information. |
|
MPDCCH |
1 |
The MTC physical downlink control channel carries scheduling assignments and other control information for BL/CE UE. |
|
PDSCH |
1 |
Physical Downlink Shared Channel |
|
PHICH |
[1] |
The PHICH carries the hybrid-ARQ ACK/NAK |
|
PUCCH |
1 |
The physical uplink control channel carries uplink control information |
|
PUSCH |
1 |
Physical Uplink Shared Channel |
|
PRACH |
1 |
Physical Random Access Channel |
4.2.2.1.1.4 Physical signals
|
Physical signal |
Minimum number |
Comments |
|---|---|---|
|
Demodulation reference signal |
NA |
UL |
|
Sounding Reference signal |
NA |
UL TBD, if applicable |
|
Cell-specific Reference Signal |
NA |
DL |
|
UE-specific reference signal |
NA |
DL |
|
Primary synchronisation signal |
NA |
DL |
|
Secondary synchronisation signal |
NA |
DL |
4.2.2.2 Support of Tcell timing offset
The timing offset in terms of frame start timing between any pair of TDD cells shall be < [3us]. For FDD cells there is no such restriction.
4.2.2.3 Supported Sidelink Configuration
The System Simulator shall provide the capability to simulate a minimum number of UEs whose number and capabilities are governed by the test cases that need to be performed (test cases are defined in 3GPP TS 36.523-1 [18] (Signalling), 3GPP TS 36.521-1 [21] (RF) and 3GPP TS 36.521-3 [34] (RRM). For this purpose test cases can be split into two different categories: Tests that require only one simulated UE and Tests that require several simulated UEs.
To perform test cases requiring one simulated UE, the system simulator shall provide a UE offering the capabilities to perform all the test cases in this category.
The type and number of sidelink channels (especially physical channels) constitute an important set of capabilities for a simulated UE. The following clauses list possible sidelink channels that may be supported by the SS. Each channel type, however, and the minimum number of channels needed are only mandatory if specific test cases require them.
The mapping between Logical and Transport channels is as described in 3GPP TS 36.321 [14]. Similarly the mapping between Transport channels and Physical channels is as described in 3GPP TS 36.211, TS 36.302 and TS 36.212.
4.2.2.3.1 Supported Sidelink Channels
4.2.2.3.1.1 Logical channels
|
Logical channel |
Minimum number |
Comments |
|
STCH |
1 |
|
|
SBCCH |
1 |
4.2.2.3.1.2 Transport channels
|
Transport channel |
Minimum number |
Comments |
|
SL-BCH |
1 |
|
|
SL-DCH |
1 |
|
|
SL-SCH |
1 |
4.2.2.3.1.3 Physical channels
|
Physical channel |
Minimum number |
Comments |
|---|---|---|
|
PSBCH |
1 |
Physical Sidelink Broadcast CHannel |
|
PSCCH |
1 |
Physical Sidelink Control CHannel |
|
PSDCH |
1 |
Physical Sidelink Discovery CHannel |
|
PSSCH |
1 |
Physical Sidelink Shared CHannel |
4.2.2.3.1.4 Physical signals
|
Physical signal |
Minimum number |
Comments |
|---|---|---|
|
Sidelink Synchronization Signals |
NA |
Sidelink Synchronization |