EP3047679A1

5G,4G,3G,2G

Title

USER EQUIPMENT AND METHODS FOR FAST HANDOVER FAILURE RECOVERY IN 3GPP LTE NETWORK

Application Number:

EP20140846552

Publication Date:

27-07-2016

Current Assignee:

APPLE INC

Family ID:

52667920

Application Date:

17-09-2014

Declaring Company:

APPLE INC , INTEL CORP

Publication Country:

US

Priority Date:

17-09-2013

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Title

USER EQUIPMENT AND METHODS FOR FAST HANDOVER FAILURE RECOVERY IN 3GPP LTE NETWORK

Application Number:

EP20140846552

Family ID:

52667920

Publication Country:

US

Publication Date:

27-07-2016

Application Date:

17-09-2014

Priority Date:

17-09-2013

Current Assignee:

APPLE INC

Declaring Company:

APPLE INC , INTEL CORP

View on Espacenet goto-link

Abstract  Abstract

Embodiments of User Equipment (UE) and methods for fast handover failure recovery in a 3GPP LTE network are generally described herein. In some embodiments the UE may initiate handover (HO) failure recovery by transmission of a random-access channel (RACH) 2 message when both a radio-link failure (RLF) timer and a time-to trigger (TTT) timer are concurrently running. The RACH 2 message may be a message transmitted on a random-access channel for radio-resource control (RRC) connection re-establishment. The RLF timer may be activated as part of a radio-link monitoring (RLM) process based on radio-link conditions with a serving cell and the TTT timer may have been activated as part of a HO process based on a measurement reporting event.

Embodiments of User Equipment (UE) and methods for fast handover failure recovery in a 3GPP LTE network are generally described herein. In some embodiments the UE may initiate handover (HO) failure recovery by transmission of a random-access channel (RACH) 2 message when both a radio-link failure (RLF) timer and a time-to trigger (TTT) timer are concurrently running. The RACH 2 message may be a message transmitted on a random-access channel for radio-resource control (RRC) connection re-establishment. The RLF timer may be activated as part of a radio-link monitoring (RLM) process based on radio-link conditions with a serving cell and the TTT timer may have been activated as part of a HO process based on a measurement reporting event.

Note:

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The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

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