4 General
36.1023GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception for satellite access
4.1 Relationship between minimum requirements and test requirements
The present document is a Single-RAT specification for satellite NR UE, covering RF characteristics and minimum performance requirements.
The Minimum Requirements given in this specification make no allowance for measurement uncertainty.
The measurement results returned by the test system are compared – without any modification – against the test requirements as defined by the shared risk principle.
The shared risk principle is defined in Recommendation ITU‑R M.1545 [4].
4.2 Applicability of minimum requirements
a) Minimum requirements are mandated to be met in all scenarios by UEs supporting the applicable UE category(ies) for which that requirement is specified. In the present document, only minimum requirements for UE categories of M1, NB1, and NB2 are specified.
b) For UE category M1, the applicable minimum requirements in clauses 5, 6 or 7 are specified in the suffix A subclause where they differ from the requirements in the main subclause. Where suffix A does not exist for a requirement, the minimum requirement in the main subclause shall apply.
c) For UE category NB1 and NB2, the applicable minimum requirements in clauses 5, 6 or 7 are specified in the Suffix B subclause, where they differ from the requirements in the main subclause. Where suffix B does not exist for a requirement, the minimum requirement in the main subclause shall apply.
d) The reference sensitivity power levels defined in subclause 7.3 are valid for the specified reference measurement channels.
e) NOTE: Receiver sensitivity degradation may occur when:
1) The UE simultaneously transmits and receives with bandwidth allocations less than the transmission bandwidth configuration (see Figure 5.3A-1 and Figure 5.3B-1), and
2) Any part of the downlink transmission bandwidth is within an uplink transmission bandwidth from the downlink center subcarrier.
f) The spurious emissions power requirements are for the long-term average of the power. For the purpose of reducing measurement uncertainty it is acceptable to average the measured power over a period of time sufficient to reduce the uncertainty due to the statistical nature of the signal.
g) The requirements related to subslot TTI and/or slot TTI shall apply only if UE supports multiple TTI patterns. And these requirements only apply to subslot and/or slot TTI configurations
h) TS36.307 [5] specifies which minimum requirements in the present document are applicable to UEs that conform to an earlier specification Release, and from which Release those requirements apply.
4.3 Specification Suffix Information
The following suffixes are defined at 2nd level for clauses 5, 6 and 7, as shown in Table 4.3-1.
Table 4.3-1: Definition of suffixes
|
Clause suffix |
Variant |
|
A |
Cat-M1 |
|
B |
NB1, NB2 |
The suffixes shall apply as defined in clause 4.2.