Method and apparatus for radio link monitoring measurements in a system using bandwidth parts
AssigneeNEC Corporation
InventorHisashi FUTAKI
Life of this patent
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Abstract
When a downlink bandwidth part (BWP) is switched from a first BWP to a second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, a radio terminal (12) continues to use for RLM measurements a first SSB associated with the first BWP after switching of the downlink BWP to the second BWP. This for example enables the radio terminal to monitor a suitable Reference Signal (RS) for RLM measurements after switching of the DL active BWP.
Claims15
A radio terminal comprising:
- a memory;
- and
- at least one processor connected to the memory and configured to:
- receive a Radio Link Monitoring (RLM) measurement configuration for a situation where a first bandwidth part (BWP) is an active BWP and a second BWP is an inactive BWP;
- and
- when the active BWP is switched from the first BWP to the second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, continue to use for RLM measurements a first SSB associated with the first BWP after switching of the active BWP to the second BWP and use the RLM measurement configuration that has already been received, with exchanging the relationship between the active BWP and the inactive BWP.
A method performed by a radio terminal, the method comprising:
- receiving a Radio Link Monitoring (RLM) measurement configuration for a situation where a first bandwidth part (BWP) is an active BWP and a second BWP is an inactive BWP;
- and
- when the active BWP is switched from the first BWP to the second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, continuing to use for RLM measurements a first SSB associated with the first BWP after switching of the active BWP to the second BWP and use the RLM measurement configuration that has already been received, with exchanging the relationship between the active BWP and the inactive BWP.
A non-transitory computer readable medium storing a program to cause a computer to perform a method for a radio terminal, wherein the method comprises:
- receiving a Radio Link Monitoring (RLM) measurement configuration for a situation where a first bandwidth part (BWP) is an active BWP and a second BWP is an inactive BWP;
- and
- when the active BWP is switched from the first BWP to the second BWP without a change of a cell defining synchronization signal block (SSB), if a reference signal type for Radio Link Monitoring (RLM) is set to an SSB type, continuing to use for RLM measurements a first SSB associated with the first BWP after switching of the active BWP to the second BWP and use the RLM measurement configuration that has already been received, with exchanging the relationship between the active BWP and the inactive BWP.
Dependencies are inferred from the claim text.