Resource counting for reference signals
This disclosure relates to techniques for performing wireless communications including exchanging information related to capability of processing reference signals. A user equipment device may provide capability information to a network. The capability information may indicate a number of reference signal resources that the user equipment device can process in a slot or other defined period of time. The user equipment device and the network may share a common set of definitions, counting rules, and approaches for interpreting the capability information. The network may configure reference signals for the user equipment device.
1. A baseband processor configured to cause a user equipment (UE) to:
determine:
a first number of reference signal resources that the UE supports during an amount of time for one or more of new beam identification or path loss measurement;
whether the UE supports 2 port channel state information reference signal (CSI-RS) for the new beam identification with the first number of reference signal resources; and
whether the UE supports multi-port CSI-RS processing for the path loss measurement with the first number of reference signal resources;
transmit, to a base station:
an indication of the first number of reference signal resources;
an indication of the support of 2 port CSI-RS for the new beam identification; and
an indication of the support of multi-port CSI-RS for the path loss measurement;
receive, from the base station, a 2 port CSI-RS; and
perform one or more of the new beam identification or path loss measurement based on the 2 port CSI-RS.
2. The baseband processor of claim 1 , wherein the amount of time comprises a slot.
3. The baseband processor of claim 1 , wherein the reference signal resources comprise CSI-RS resources.
4. The baseband processor of claim 1 , wherein the first number of reference signal resources are for beam measurement that includes beam failure detection.
5. The baseband processor of claim 1 , wherein the first number of reference signal resources are for beam measurement that includes radio link monitoring.
6. The baseband processor of claim 1 , wherein the first number of reference signal resources are for beam measurement that includes one or more of:
Layer 1 RSRP (L1-RSRP) measurement; or
Layer 1 SINR (L1-SINR) measurement.
7. The baseband processor of claim 1 , wherein determining the first number of reference signal resource includes resource counting, wherein resource counting is the same for the path loss measurement, new beam identification, and Layer 1 RSRP (L1-RSRP) measurement.
8. A method, comprising:
determining:
a first number of reference signal resources that a user equipment (UE) supports during an amount of time for one or more of new beam identification or path loss measurement;
whether the UE supports 2 port channel state information reference signal (CSI-RS) for the new beam identification with the first number of reference signal resources; and
whether the UE supports multi-port CSI-RS processing for the path loss measurement with the first number of reference signal resources;
transmitting, to a base station:
an indication of the first number of reference signal resources;
an indication of the support of 2 port CSI-RS for the new beam identification; and
an indication of the support of multi-port CSI-RS for the path loss measurement;
receiving, from the base station, a 2 port CSI-RS; and
performing one or more of the new beam identification or path loss measurement based on the 2 port CSI-RS.
9. The method of claim 8 , further comprising:
transmitting a report of the one or more of the new beam identification or path loss measurement to the base station.
10. The method of claim 8 , wherein the reference signal resources comprise CSI-RS resources.
11. The method of claim 8 , wherein the first number of reference signal resources are for beam measurement that includes beam failure detection.
12. The method of claim 8 , wherein the first number of reference signal resources are for beam measurement that includes radio link monitoring.
13. The method of claim 8 , wherein the first number of reference signal resources are for beam measurement that includes one or more of:
Layer 1 RSRP (L1-RSRP) measurement; or
Layer 1 SINR (L1-SINR) measurement.
14. A method, comprising:
receiving, from a user equipment (UE):
an indication of a first number of reference signal resources that the UE supports during an amount of time for one or more of new beam identification or path loss measurement;
an indication of whether the UE supports 2 port channel state information reference signal (CSI-RS) for the new beam identification with the first number of reference signal resources; and
an indication of whether the UE supports multi-port CSI-RS processing for the path loss measurement with the first number of reference signal resources; and
transmitting, to the UE, a 2 port CSI-RS, wherein the 2 port CSI-RS is useable for performing the one or more of the new beam identification or path loss measurement.
15. The method of claim 14 , wherein the amount of time comprises a slot.
16. The method of claim 14 , wherein the reference signal resources comprise CSI-RS resources.
17. The method of claim 14 , wherein the first number of reference signal resources are for beam measurement that includes beam failure detection.
18. The method of claim 14 , further comprising:
receiving, from the UE, an indication of a result of the one or more of the new beam identification or path loss measurement.
19. The baseband processor of claim 1 , wherein the indication of the support of 2 port CSI-RS for the new beam identification comprises a capability.
20. The baseband processor of claim 1 , wherein the indication of the support of multi-port CSI-RS for the path loss measurement comprises a capability.