Technologies for autonomous serving cell measurement

1 . One or more non-transitory, computer-readable media having instructions that, when executed, cause processing circuitry to:

receive, while in a radio resource control (RRC) idle or inactive state, a system information block 1 (SIB1) transmission from a serving cell, the SIB1 transmission having a synchronization signal and physical broadcast channel block (SSB) bitmap to indicate SSB symbols;

perform a serving cell measurement on the SSB symbols;

compare the serving cell measurement to a threshold, wherein the threshold is: a user equipment (UE)-configured threshold; obtained from a preconfigured database; or obtained from a system information block (SIB2) transmission received before receipt of the SIB1 transmission; and

evaluate the serving cell based on comparison of the serving cell measurement to the threshold.

2 . The one or more non-transitory, computer-readable media of claim 1 , wherein

the threshold is a UE-configured threshold.

3 . The one or more non-transitory, computer-readable media of claim 1 , wherein the

SSB bitmap is within an SSB-positions-in-burst field of the SIB1 transmission.

4 . The one or more non-transitory, computer-readable media of claim 1 , wherein the instructions, when executed, further cause the device-processing circuitry to:

determine an SSB periodicity based on an indication within an SSB-periodicity field of the SIB1 transmission.

5 . The one or more non-transitory, computer-readable media of claim 1 , wherein the

threshold is obtained from a preconfigured database.

6 . The one or more non-transitory, computer-readable media of claim 1 , wherein the instructions, when executed, further cause the processing circuitry to:

receive a physical broadcast channel (PBCH); and

determine SSB frequency and subcarrier spacing based on the PBCH.

7 . The one or more non-transitory, computer-readable media of claim 1 , wherein the

serving cell measurement is restricted to the SSB symbols.

8 . The one or more non-transitory, computer-readable media of claim 1 , wherein the instructions, when executed, further cause the processing circuitry to:

release the serving cell based on comparison of the serving cell measurement to the threshold; and

initiate a cell-selection procedure based on release of the serving cell.

9 . The one or more non-transitory, computer-readable media of claim 8 , wherein the instructions, when executed, further cause the processing circuitry to:

release the serving cell based further on a determination that the serving cell measurement is less than the threshold for a predetermined period of time.

10 . The one or more non-transitory, computer-readable media of claim 1 , wherein the threshold is obtained from a SIB2 transmission received before receipt of the SIB1 transmission.

11 . A method comprising:

receiving a system information block 1 (SIB1) transmission from a serving cell, the SIB1 transmission having a synchronization signal and physical broadcast channel block (SSB) bitmap to indicate SSB symbols;

performing a serving cell measurement on the SSB symbols;

comparing the serving cell measurement to a threshold, wherein the threshold is: a user equipment (UE)-configured threshold; obtained from a preconfigured database; or obtained from a system information block (SIB2) transmission received before receipt of the SIB1 transmission; and

evaluating the serving cell based on the comparing of the serving cell measurement to the threshold.

12 . The method of claim 11 ,

wherein the threshold is a UE-configured threshold.

13 . The method of claim 11 ,

wherein the threshold is obtained from a preconfigured database.

14 . The method of claim 12 ,

wherein the threshold is obtained from a system information block 2 (SIB2) transmission received before receipt of the SIB1 transmission.

15 . An apparatus comprising:

memory to store minimum system information (MSI) received from a serving cell in a system information block 1 (SIB1) transmission in a physical downlink shared channel (PDSCH), the SIB1 transmission having a synchronization signal and physical broadcast channel block (SSB) bitmap to indicate SSB symbols; and

processing circuitry coupled with the memory, the processing circuitry to:

perform a serving cell measurement on the SSB symbols;

compare the serving cell measurement to a threshold, wherein the threshold is: a user equipment (UE)-configured threshold; obtained from a preconfigured database; or obtained from a system information block (SIB2) transmission received before receipt of the SIB1 transmission; and

evaluate the serving cell based on comparison of the serving cell measurement to the threshold.

16 . The apparatus of claim 15 , wherein

the threshold is a UE-configured threshold.

17 . The apparatus of claim 15 , wherein the

SSB bitmap is within an SSB-positions-in-burst field of the SIB1 transmission.

18 . The apparatus of claim 15 , wherein the processing circuitry is further to:

determine an SSB periodicity based on an indication within an SSB-periodicity field of the SIB1 transmission.

19 . The apparatus of claim 15 , wherein the

threshold is obtained from a preconfigured database.

20 . The apparatus of claim 19 , wherein the

threshold is obtained from a system information block (SIB2) transmission received before receipt of the SIB1 transmission.