【LTE FDD Answer House】What Are the Handover Policies for Intra-RAT Mobility Mana

Helene  Silver  (1)
6 years 5 months ago  View: 2130  Reply: 1

 What Are the Handover Policies for Intra-RAT Mobility Management in Connected Mode?

Question

What are the policies for intra-RAT handovers?

Answer

Policies for intra-RAT mobility management are classified into handover and redirection.

Intra-frequency cells can perform only handovers. Redirection does not apply to intra-frequency cells.

The eNodeB selects either a handover procedure or a redirection procedure for inter-frequency mobility management.

  • The eNodeB selects the handover procedure for all measurement-based handovers.
  • When the FDD and TDD cells of the same eNodeB are served by different MMEs, only the redirection procedure can be selected for coverage-based inter-frequency handover between FDD and TDD cells.
  • The procedure selection for blind handover is as follows:
    • The eNodeB selects the redirection procedure for coverage-based and UL-quality-based blind handover. Redirection is performed only on non-VoIP UEs, not on VoIP UEs.
    •  The eNodeB selects the handover procedure for frequency-priority-based blind handover.

Applicable Versions

eRAN6.0 and later

user_2837311  Diamond 
2 years 10 months ago
useful document, thanks