Patent · US Active

Handover method and apparatus in a wireless communications network

US9668177B2 · kind B2 · utility

20Cited by

0References

20Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Heidrun Grob-Lipski · Starzach, DE
Stephen Kaminski · Eislingen/Fils, DE
Hajo Bakker · Eberdingen, DE
Dietrich Zeller · Stuttgart, DE

Key dates

Filing date	Aug 11, 2009
Grant date	May 30, 2017
Priority date	—
Expiry date	Aug 31, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04W92/20
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for handover in a wireless communications network includes the step of communicating information between a target network node and a source network node to enable the source network node to identify and to distinguish types of failures prior to, during or after handover. The information may relate to: “Handover command not received” due to RLF prior to handover or Handover command failure experienced in the source cell; or “Handover failure” where “Handover command received” is followed by Access failure in the target cell. The method is applicable, for example, to networks in accordance with LTE.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.