Hierarchical CDRX configuration for dynamic bandwidth part management and power saving

A base station, comprising:

• an antenna;
• a radio coupled to the antenna;
• and
• a processing element coupled to the radio,
• wherein the base station is configured to:
• configure a first bandwidth part (BWP) as a default BWP for a connected mode discontinuous reception (CDRX) communication session with a user equipment device (UE), wherein being configured as the default BWP causes the first BWP to be an active BWP unless it is overridden;
• configure a second BWP as a transmission BWP for the CDRX communication session with the UE, wherein being configured as a transmission BWP causes the second BWP to periodically override the first BWP as the active BWP with a predetermined fixed periodicity, and wherein said periodically overriding the first BWP as the active BWP is performed via systematic scheduling;
• utilize downlink control information (DCI) to notify the UE to go to sleep a predetermined number of symbols after the second BWP overrides the first BWP as the active BWP;
• configure one or more third BWPs as resting BWPs for the CDRX communication session with the UE, wherein being configured as the resting BWP causes the resting BWP to be periodically activated for performing channel measurements;
• and
• reallocate the third BWP as the transmission BWP and the second BWP as the resting BWP based at least in part on determining that the third BWP is experiencing better channel conditions than the second BWP.

A non-transitory computer-readable memory medium comprising program instructions that, when executed by a processor of a base station, cause the base station to:

• configure a first bandwidth part (BWP) as a default BWP for a connected mode discontinuous reception (CDRX) communication session with a user equipment device (UE), wherein being configured as the default BWP causes the first BWP to be an active BWP unless it is overridden;
• configure a second BWP as a transmission BWP for the CDRX communication session with the UE, wherein being configured as a transmission BWP causes the second BWP to periodically override the first BWP as the active BWP with a predetermined fixed periodicity, and wherein said periodically overriding the first BWP as the active BWP is performed via systematic scheduling;
• utilize downlink control information (DCI) to notify the UE to go to sleep a predetermined number of symbols after the second BWP overrides the first BWP as the active BWP;
• configure one or more third BWPs as resting BWPs for the CDRX communication session with the UE, wherein being configured as the resting BWP causes the resting BWP to be periodically activated for performing channel measurements;
• and
• reallocate the third BWP as the transmission BWP and the second BWP as the resting BWP based at least in part on determining that the third BWP is experiencing better channel conditions than the second BWP.