US 2026/0292644 A1 · METHOD AND USER EQUIPMENT FOR DETECTING AND ESCAPING FROM ISSUE CELL

Abstract

A method for detecting an issue cell and escaping from the issue cell is provided. A connection with a Pcell is established. It is detected in a time window that there are no uplink (UL) packets, or no downlink (DL) packets, or no valid DL packets, or the frequency of a target secondary cell (Scell) or a target secondary cell group (SCG) repeatedly being added and removed from a serving cell is higher than a predefined frequency. It is determined that the Pcell is an issue cell. The issue cell is escaped from by handling a new reconfiguration message from the issue cell, or by handover or redirection, or by UE-triggered re-establishment or local release, or by modifying at least one of the measurement reports to skip the addition of the target Scell or the target SCG.

Claims23

Dependent claims

A method for detecting an issue cell and escaping from the issue cell, comprising:

establishing a connection with a primary cell (Pcell);
detecting that at least one of conditions is fulfilled in a time window;
wherein the conditions comprise no uplink (UL) packets, no downlink (DL) packets, no valid DL packets, and a frequency of a target secondary cell (Scell) or a target secondary cell group (SCG), which is repeatedly added and removed from a serving cell, being higher than a predefined frequency;
determining the Pcell is an issue cell;
and
escaping from the issue cell by at least one of actions;
wherein the actions comprise handling a new reconfiguration message from the issue cell, handover or redirection, UE-triggered re-establishment or local release, and modifying at least one of measurement reports to skip addition of the target Scell or the target SCG.

4 more elements

A user equipment (UE), comprising:

a processor, configured to:
establish a connection with a Pcell;
detect at least one of conditions is fulfilled in a time window;
wherein the conditions comprise no UL packets, no DL packets, no valid DL packets, and a frequency of a target Scell or a SCG, which is repeatedly added and removed from a serving cell, being higher than a predefined frequency;
determine that the Pcell is an issue cell;
and
escape from the issue cell by at least one of actions;
wherein the actions comprise handling a new reconfiguration message from the issue cell, handover or redirection, UE-triggered re-establishment or local release, and modifying at least one of the measurement reports to skip the addition of the target Scell or the target SCG.

5 more elements

Dependencies are inferred from the claim text.

Method and user equipment for detecting and escaping from issue cell

Life of this patent

Method and user equipment for detecting and escaping from issue cell

Life of this patent

Abstract

Claims23