Systems, methods and devices for using s-Measure with new radio
View Patent ↗A new radio (NR) capable user equipment (UE) to determine whether to skip cellular measurements using s-Measure configuration based on measurements of a synchronization signal (SS) block (SSB) and/or Channel State Information Reference Signal (CSI-RS) using an s-Measure configuration. For example, an s-Measure configuration can include a reference signal received power (RSRP) value and an indicator whether to apply the value to an NR SS block or a CSI-RS. If the value meets or exceeds the measurement for the indicated signal measurement, the s-Measure is satisfied. For example, in an embodiment, the network configures a single s-Measure configuration (e.g., either an NR SS s-Measure configuration or a CSI-RS s-Measure configuration), which when satisfied the UE does not perform further measurements.
1. An apparatus for a user equipment (UE), comprising:
a cellular interface configured to couple to a transmitter wirelessly coupled to a next generation NodeB (gNB); and
a processor coupled to the cellular interface, the processor configured to:
process a reference signal received power (RSRP) measurement value;
determine whether an s-Measure configuration is set for an RSRP of a new radio (NR) synchronization signal block (SSB) or an RSRP of a channel state indicator reference signal (CSI-RS), the s-Measure configuration including an s-Measure value indicating an RSRP threshold and an indication of a selection of either NR-SSB or CSI-RS;
when the s-Measure configuration is set for RSRP of NR SSB:
determine whether the RSRP measurement value based on an NR SSB is less than the s-Measure value; and
when the RSRP measurement value based on an NR SSB is less than the s-Measure value, perform additional NR SSB measurements;
when the s-Measure configuration is set for RSRP of CSI-RS:
determine whether the RSRP measurement value based on CSI-RS is less than the s-Measure value; and
when the RSRP measurement value based on CSI-RS is less than the s-Measure value, perform additional CSI-RS measurements.
2. The apparatus of claim 1 , wherein the additional NR SSB measurements are cell measurement results.
3. The apparatus of claim 1 , wherein the additional C SI-RS measurements are cell measurement results.
4. The apparatus of claim 1 , further comprising:
processing a network configuration from the gNB using a radio resource control (RRC) message including an indicator of s-Measure for NR SSB or s-Measure for CSI-RS and an s-Measure value; and
storing the s-Measure value and an indication of NR SSB or CSI-RS.
5. The apparatus of claim 1 , wherein the s-Measure configuration can only be set to a single indicator, including NR SSB or CSI-RS.
6. The apparatus of claim 1 , wherein when the s-Measure configuration is set for RSRP of NR SSB and when the RSRP measurement value based on an NR SSB is greater than or equal to the s-Measure value, skip additional NR SSB measurements.
7. The apparatus of claim 1 , wherein when the s-Measure configuration is set for RSRP of CSI-RS and when the RSRP measurement value based on CSI-RS is greater than or equal to the s-Measure value, skip additional CSI-RS measurements.
8. The apparatus of claim 1 , wherein when the s-Measure configuration is set for RSRP of NR SSB and an RRC message indicates an s-Measure value for RSRP of CSI-RS, store the s-Measure value and set the s-Measure configuration for RSRP of CSI-RS.
9. The apparatus of claim 1 , wherein when the s-Measure configuration is set for RSRP of CSI-RS and an RRC message indicates an s-Measure value for RSRP of NR SSB, store the s-Measure value and set the s-Measure configuration for RSRP of NR SSB.
10. An apparatus for a radio access network (RAN) node, comprising:
a memory interface configured to be coupled to memory and configured to store and access an s-Measure configuration;
a processor coupled to the cellular interface, the processor configured to:
determine to configure a user equipment (UE) for an s-Measure configuration for either a reference signal received power (RSRP) of a new radio (NR) synchronization signal block (SSB) or an RSRP of a channel state indicator reference signal (CSI-RS);
when determined to set the s-Measure configuration for RSRP of NR SSB, generate an RRC message including a measurement configuration information element indicating an s-Measure configuration for RSRP of NR SSB and an s-Measure value;
when determined to set the s-Measure configuration for RSRP of CSI-RS, generate an RRC message including a measurement configuration information element indicating an s-Measure configuration for RSRP of CSI-RS and an s-Measure value; and
provide the RRC message for transmission to a UE for s-Measure configuration.
11. The apparatus of claim 10 , wherein the RAN node is further configured to process cell measurement results.
12. The apparatus of claim 10 , wherein the processor is further configured to adjust the s-Measure value to trigger a UE to provide cell measurements when an RSRP value of a measured RSRP of NR SSB is below a threshold.
13. The apparatus of claim 10 , wherein the processor is further configured to adjust the s-Measure value to trigger a UE to provide cell measurements when an RSRP value of a measured RSRP of CSI-RS is below a threshold.
14. The apparatus of claim 10 , wherein the processor is further to adjust the s-Measure value to trigger a UE to skip cell measurements when an RSRP value of a measured RSRP of NR SSB is greater than or equal to a threshold.
15. The apparatus of claim 10 , wherein the processor is further to adjust the s-Measure value to trigger a UE to skip cell measurements when an RSRP value of a measured RSRP of CSI-RS greater than or equal to a threshold.
16. The apparatus of claim 10 , wherein the measurement configuration information element is a MeasConfig information element that includes a threshold value for RSRP and a choice of NR SSB or CSI-RS.
17. A computer program product comprising a non-transitory computer-readable storage medium that stores instructions for execution by a processor to perform operations of a user equipment (UE), the operations, when executed by the processor, to perform a method, the method comprising:
process a reference signal received power (RSRP) measurement value;
determine whether an s-Measure configuration is set for an RSRP of a new radio (NR) synchronization signal block (SSB) or an RSRP of a channel state indicator reference signal (CSI-RS);
when the s-Measure configuration is set for RSRP of NR SSB:
determine whether the RSRP measurement value based on an NR SSB is less than an s-Measure value; and
when the RSRP measurement value based on an NR SSB is less than an s-Measure value, perform additional NR SSB measurements; and
when the s-Measure configuration is set for RSRP of CSI-RS:
determine whether the RSRP measurement value based on CSI-RS is less than the s-Measure value; and
when the RSRP measurement value based on CSI-RS is less than a s-Measure value, perform additional CSI-RS measurements.
18. The computer program product of claim 17 , wherein the additional NR SSB measurements are cell measurement results, and wherein the additional CSI-RS measurements are cell measurement results.
19. The computer program product of claim 17 , further comprising to process a network configuration from the gNB using a radio resource control (RRC) message including an indicator of s-Measure for NR SSB or s-Measure for CSI-RS and an s-Measure value; and store the s-Measure value and an indication of NR SSB or CSI-RS.
20. The computer program product of claim 17 , wherein the s-Measure configuration can only be set to a single indicator, including NR SSB or CSI-RS.