Method and node of search space set group monitoring
A method and a node of search space set group (SSSG) monitoring are provided. The method includes: performing a bandwidth part (BWP) switching from a first BWP to a second BWP during a physical downlink control channel (PDCCH) adaptation time period in response to a bwp-InactivityTimer expiration; and starting monitoring a default SSSG in the second BWP in response to the default SSSG being configured.
1 . A method performed by a user equipment (UE) for search space set group (SSSG) monitoring, the method comprising:
performing a bandwidth part (BWP) switching from a first BWP to a second BWP during a physical downlink control channel (PDCCH) adaptation time period upon an expiration of a BWP inactivity timer; and
starting monitoring a default SSSG in the second BWP after determining that the default SSSG is configured.
2 . The method of claim 1 , further comprising:
starting monitoring all search space sets in the second BWP in response to determining that the default SSSG is not configured.
3 . The method of claim 2 , wherein the default SSSG comprises a plurality of search spaces included in the search space sets.
4 . The method of claim 1 , wherein:
the monitoring of the default SSSG is started after a BWP switching delay that starts from a time at which the BWP switching is performed.
5 . The method of claim 4 , wherein:
the monitoring of the default SSSG is started further after an application delay that starts from a time at which downlink control information (DCI) is received.
6 . The method of claim 5 , wherein the application delay comprises one of a PDCCH skipping application delay or an SSSG switching delay.
7 . The method of claim 1 , wherein:
the monitoring of the default SSSG is started after an application delay that starts from a time at which downlink control information (DCI) is received.
8 . The method of claim 1 , wherein:
the monitoring of the default SSSG is started during the PDCCH adaptation time period.
9 . The method of claim 1 , further comprising:
restarting the PDCCH adaptation time period after switching to the second BWP.
10 . The method of claim 1 , wherein the PDCCH adaptation time period comprises at least one of:
a PDCCH skipping duration,
a duration set by a timer for an SSSG switching, or
a duration set by a search space switching timer.
11 . A user equipment (UE) for search space set group (SSSG) monitoring, the UE comprising:
at least one processor; and
at least one non-transitory computer-readable medium coupled to the at least one processor and storing one or more computer-executable instructions that, when executed by
the at least one processor, cause the UE to:
perform a bandwidth part (BWP) switching from a first BWP to a second BWP during a physical downlink control channel (PDCCH) adaptation time period upon an expiration of a BWP inactivity timer; and
start monitoring a default SSSG in the second BWP after determining that the default SSSG is configured.
12 . The UE of claim 11 , wherein the one or more computer-executable instructions, when executed by the at least one processor, further cause the UE to:
start monitoring all search space sets in the second BWP in response to determining that the default SSSG is not configured.
13 . The UE of claim 12 , wherein the default SSSG comprises a plurality of search spaces including in the search space sets.
14 . The UE of claim 11 , wherein
the monitoring of the default SSSG is started after a BWP switching delay that starts from a time at which the BWP switching is performed.
15 . The UE of claim 14 , wherein:
the monitoring of the default SSSG is started further after an application delay that starts from a time at which downlink control information (DCI) is received.
16 . The UE of claim 15 , wherein the application delay comprises one of a PDCCH skipping application delay or an SSSG switching delay.
17 . The UE of claim 11 , wherein:
the monitoring of the default SSSG is started after an application delay that starts from a time at which downlink control information (DCI) is received.
18 . The UE of claim 11 , wherein:
the monitoring of the default SSSG is started during the PDCCH adaptation time period.
19 . The UE of claim 11 , wherein the one or more computer-executable instructions, when executed by the at least one processor, further cause the UE to:
restart the PDCCH adaptation time period after switching to the second BWP.
20 . The UE of claim 11 , wherein the PDCCH adaptation time period comprises at least one of:
a PDCCH skipping duration,
a duration set by a timer for an SSSG switching, or
a duration set by a search space switching timer.