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X2 layer 1

in Specification, LTE, X2

The main functions of X2 interface layer 1 are as following:

  • Interface to physical medium;
  • Frame delineation;
  • Line clock extraction capability;
  • Layer 1 alarms extraction and generation;
  • Transmission quality control.

Protocol specification

3GPP TS 36.421 - Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 layer 1

 

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LTE Protocols

  • Air Interface Physical Layer
  • GPRS Tunnelling Protocol User Plane (GTP-U)
  • GTP-U Transport
  • Medium Access Control (MAC)
  • Non-Access-Stratum (NAS) Protocol
  • Packet Data Convergence Protocol (PDCP)
  • Radio Link Control (RLC)
  • Radio Resource Control (RRC)
  • S1 Application Protocol (S1AP)
  • S1 layer 1
  • S1 Signalling Transport
  • X2 Application Protocol (X2AP)
  • X2 layer 1
  • X2 Signalling Transport

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