UE assisted fast transition between RRC states

An apparatus for wireless communication at a user equipment (UE), comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive, from a network entity, a configuration that configures the UE to:
• (i) select a radio resource control (RRC) state preference from among an RRC inactive state and an RRC idle state, the RRC state preference indicating a preference of the UE to transition out of an RRC connected state into one of the RRC inactive state or the RRC idle state, and (ii) report UE assistance information to inform the network entity of the RRC state preference selected by the UE;
• generate one of a short buffer status report (BSR) or a long BSR based on whether the RRC state preference is RRC inactive or RRC idle;
• send, to the network entity, one of the short BSR or the long BSR indicating the RRC state preference;
• and
• receive, from the network entity, an RRC release message releasing an RRC connection between the UE and the network entity, the RRC release message indicating whether the UE is to transition from the RRC connected state to the RRC inactive state or from the RRC connected state to the RRC idle state based on the RRC state preference selected by the UE.

A method of wireless communication at a network entity, comprising:

• sending, to a user equipment (UE), a configuration that configures the UE to:
• (i) select a radio resource control (RRC) state preference from among an RRC inactive state and an RRC idle state, the RRC state preference indicating a preference of the UE to transition out of an RRC connected state into one of the RRC inactive state or the RRC idle state, and (ii) report UE assistance information to inform the network entity of the RRC state preference selected by the UE;
• receiving, from the UE, one of a short buffer status report (BSR) or a long BSR indicating the RRC state preference;
• and
• sending, to the UE, an RRC release message to release the UE from an RRC connected state to one of the RRC inactive state or the RRC idle state based on the RRC state preference selected by the UE.

An apparatus for wireless communication at a network entity, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• send, to a user equipment (UE), a configuration that configures the UE to:
• (i) select a radio resource control (RRC) state preference from among an RRC inactive state and an RRC idle state, the RRC state preference indicating a preference of the UE to transition out of an RRC connected state into one of the RRC inactive state or the RRC idle state, and (ii) report UE assistance information to inform the network entity of the RRC state preference selected by the UE;
• receive, from the UE, one of a short buffer status report (BSR) or a long BSR indicating the RRC state preference;
• and
• send, to the UE, an RRC release message to release the UE from an RRC connected state to one of the RRC inactive state or the RRC idle state based on the RRC state preference selected by the UE.