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TS 25.411 (RAN3)
UTRAN – Iu interface –
Layer 1

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(P) V14.0.0    2017/03    12 p.
(P) V13.0.0    2015/12    12 p.
(P) V12.0.0    2014/09    12 p.
(P) V11.0.0    2012/09    12 p.
(P) V10.1.0    2011/06    12 p.
(P) V9.0.1    2011/04    12 p.
(P) V8.0.0    2009/01    11 p.
(P) V7.1.0    2007/10    11 p.
(P) V6.1.0    2004/09    11 p.
(P) V5.1.0    2004/09    11 p.
(P) V4.1.0    2001/07    11 p.
(P) V3.5.0    2001/07    11 p.


Rapporteur:  Dr. Reininger, Philippe
See also:  –


This TS specifies the standards allowed to implement Layer 1 on the Iu interface. The specification of transmission delay requirements and OAM requirements are not in the scope of this TS.

The main functions of Layer 1 are summarised in the following:
  • Interface to physical medium;
  • [ATM-Cell delineation];
  • Line clock extraction capability;
  • Layer 1 alarms extraction and generation;
  • In-sequence delivery;
  • Transmission quality control.


 

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