Patent · US Active

Periodic timer synchronization logic for RRC inactive state

US10616850B2 · kind B2 · utility

1Cited by

1References

9Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Qian Chen · Mölndal, SE
Josefin Karlsson · Torslanda, SE
Peter Ramle · Mölnlycke, SE
Paul Schliwa-Bertling · Ljungsbro, SE

Key dates

Filing date	Jul 9, 2018
Grant date	Apr 7, 2020
Priority date	—
Expiry date	Jul 9, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04W88/14
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method performed by an AMF is provided. The method includes determining an elapsed time value (δRAN). The method further includes determining whether the elapsed time value is less than a negotiated NAS periodic timer (τNAS-per). The AMF is configured such that, as a result of the AMF determining that δRAN<τNAS-per, the AMF transitions the UE to CM-IDLE state and starts a NAS periodic timer with a value equal to τNAS-per−δRAN.

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