TS 36.457
E-UTRAN — SLm Interface –
Layer 1
V18.0.0 (PDF)
2024/03 9 p.
V17.0.0
2022/03 9 p.
V16.0.0
2020/06 9 p.
V15.0.0
2018/06 9 p.
V14.0.0
2017/03 9 p.
V13.0.0
2015/12 9 p.
V12.0.0
2014/09 9 p.
V11.0.0
2013/01 9 p.
- Rapporteur:
- Mrs. Brooks, Terri
TruePosition
Content for TS 36.457 Word version: 18.0.0
1 Scope
2 References
3 Definitions, symbols and abbreviations
4 Introduction
5 Layer 1 specifications
6 Interface to management plane
$ Change History
1 Scope p. 6
The present document specifies the standards allowed to implement layer 1 on the SLm interface.
The specification of transmission delay requirements and O&M requirements are not in the scope of the present document.
In the following, 'layer 1' and 'physical layer' are assumed to be synonymous.
2 References p. 6
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
3 Definitions, symbols and abbreviations p. 6
3.1 Definitions p. 6
For the purposes of the present document, the terms and definitions given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
3.2 Symbols p. 6
For the purposes of the present document, the following symbols apply:
3.3 Abbreviations p. 6
4 Introduction p. 7
The main functions of layer 1 are summarized in the following:
- Interface to physical medium;
- Frame delineation;
- Line clock extraction capability;
- Layer 1 alarms extraction and generation;
- Transmission quality control.
5 Layer 1 specifications p. 7
The support of any suitable layer 1 technique - like point-to-point or point-to-multipoint techniques - shall not be prevented.
6 Interface to management plane p. 7
The description of the interface towards the management plane is out of scope of this document, but at least the following O&M functions should be foreseen:
- Performance monitoring functions;
- Alarm status reporting functions;
- Synchronisation source management.
$ Change History p. 8
