- Patent Title: Prohibiting failure indications for secondary cell group failure
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Application No.: US17022277Application Date: 2020-09-16
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Publication No.: US11382167B2Publication Date: 2022-07-05
- Inventor: Riikka Susitaival , Torsten Dudda
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Murphy, Bilak & Homiller, PLLC
- Main IPC: H04W76/00
- IPC: H04W76/00 ; H04W76/27 ; H04W76/18 ; H04W76/25 ; H04W76/15 ; H04W88/06

Abstract:
A UE operating in a network that supports dual connectivity operation is configured to minimize the transmission of unnecessary UE failure indications. The UE detects secondary cell group (SCG) failure for the UE, in response to detecting one of a plurality of SCG failure-triggering events. The UE sends a UE failure indication message, in response to the detecting SCG failure, and refrains from sending further UE failure indication messages in response to SCG failure-triggering events, until the sending of further UE failure indication messages is reenabled. In some cases, the UE sets a state of the UE to a UE prohibit state to prohibit sending further UE failure indication messages while in the UE prohibit state. In other cases, the UE starts a prohibit timer to prohibit sending further UE failure indication messages during the prohibit timer.
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