TS 25.431
UTRAN – Iub Interface –
Layer 1
V18.0.0 (PDF)
2024/03 8 p.
V17.0.0
2022/03 8 p.
V16.0.0
2020/06 8 p.
V15.0.0
2018/06 8 p.
V14.0.0
2017/03 8 p.
V13.0.0
2015/12 8 p.
V12.0.0
2014/09 8 p.
V11.0.0
2012/09 8 p.
V10.1.0
2011/06 8 p.
V9.0.1
2011/04 8 p.
V8.0.0
2009/01 8 p.
V7.0.0
2006/03 8 p.
V6.0.0
2004/01 8 p.
V5.0.0
2002/03 8 p.
V4.0.0
2001/04 8 p.
V3.1.0
2001/04 8 p.
- Rapporteur:
- Dr. Reininger, Philippe
Huawei Tech.(UK) Co. Ltd
Content for TS 25.431 Word version: 18.0.0
1 Scope p. 5
The present document specifies the standards allowed to implement Layer 1 on the Iub interface.
The specification of transmission delay requirements and O&M requirements is not in the scope of this document.
In the following 'Layer 1' and 'Physical Layer' are assumed to be synonymous.
2 References p. 5
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 and abbreviations p. 5
For the purposes of the present document, the terms and definitions given in TS 25.411 apply.
4 Iub Layer 1 p. 5
The Iub Layer 1 shall comply with the requirements of chapter 4 in TS 25.411.
In addition, for the Iub Layer 1, it shall be possible to use n 64 kbit/s time slots within the scope of "ATM on Fractional E1/T1" as specified in ATM Forum AF-PHY-0130.00 [2], and to allow the co-existence of this interface with other interfaces on the same physical medium.
$ Change History p. 6
