Devices for radio link monitoring
AssigneeSharp Kabushiki Kaisha
InventorShohei Yamada
Life of this patent
Estimating the term…
Abstract
A user equipment (UE) configured for radio link monitoring is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE monitors a radio link quality for a secondary cell (SCell). The UE also determines whether a physical layer problem is detected based on the radio link quality. If a physical layer problem is detected, the UE stops a time alignment timer (TAT) of the SCell or sets the time alignment timer (TAT) of the SCell as expired.
Claims7
A user equipment (UE) configured for radio link monitoring, comprising:
- a processor;
- memory in electronic communication with the processor;
- instructions stored in the memory, the instructions being executable to:
- monitor a radio link quality for a primary cell (PCell);
- monitor the radio link quality for a secondary cell that is different from the PCell and is a timing reference for a time alignment (TA) group that does not include the PCell;
- determine whether a physical layer problem is detected based on the radio link quality for the secondary cell;
- and based on a detection of a physical layer problem for the secondary cell:
- stop a time alignment timer (TAT) corresponding to the TA group or consider the time alignment timer (TAT) corresponding to the TA group as expired.
A method for radio link monitoring on a user equipment (UE), comprising:
- monitoring a radio link quality for a primary cell (PCell);
- monitoring the radio link quality for a secondary cell that is different from the PCell and is a timing reference for a time alignment (TA) group that does not include the PCell;
- determining whether a physical layer problem for the secondary cell is detected based on the radio link quality;
- and based on a detection of a physical layer problem for the secondary cell:
- stopping a time alignment timer (TAT) corresponding to the TA group or considering the time alignment timer (TAT) corresponding to the TA group as expired.
A non-transitory, tangible computer-readable medium for radio link monitoring, comprising executable instructions for:
- monitoring a radio link quality for a primary cell (PCell);
- monitoring the radio link quality for a secondary cell that is different from the PCell and is a timing reference for a time alignment (TA) group that does not include the PCell;
- determining whether a physical layer problem is detected based on the radio link quality for the secondary cell;
- and based on a detection of a physical layer problem for the secondary cell:
- stopping a time alignment timer (TAT) corresponding to the TA group or considering the time alignment timer (TAT) corresponding to the TA group as expired.
Dependencies are inferred from the claim text.