Indicating user equipment capability for beam failure detection
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a quantity of reference signals that the UE supports for measuring for beam failure detection within one or more slots. A base station may determine a quantity of reference signals to transmit to the UE based at least in part on the indication. The UE may receive, and the base station may transmit, one or more reference signals in a slot of the one or more slots based at least in part on transmitting the indication of the quantity of reference signals. The UE may transmit an indication of beam failure detection of the wireless connection based at least in part on measurements of the received one or more reference signals. Numerous other aspects are provided.
1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled with the memory, configured to:
transmit an indication of a quantity of reference signals that the UE supports for measuring for beam failure detection within a slot,
the quantity of reference signals being based on a first quantity of reference signals that the UE supports for beam failure detection on a first set of component carriers of a first frequency range or a second quantity of reference signals that the UE supports for beam failure detection on a second set of component carriers of a second frequency range;
receive one or more reference signals in the slot based at least in part on transmitting the indication of the quantity of reference signals; and
transmit an indication of beam failure detection based at least in part on measurements of the received one or more reference signals.
2. The UE of claim 1 , wherein the quantity of reference signals comprises a maximum quantity of reference signals that the UE supports for beam failure detection within the slot.
3. The UE of claim 1 , wherein the one or more reference signals include one or more of synchronization signal physical broadcast channel blocks or channel state information reference signals.
4. The UE of claim 3 , wherein the channel state information reference signals include one or more of:
a non-zero-power channel state information reference signal,
an aperiodic channel state information reference signal,
a periodic channel state information reference signal, or
a semi-persistent channel state information reference signal.
5. The UE of claim 1 , wherein the first set of component carriers of corresponds to a special cell and one or more secondary cells of the first frequency range.
6. The UE of claim 1 , wherein the one or more processors, when transmitting the indication of the quantity of reference signals, are configured to transmit, within a control message, the indication of the quantity of reference signals.
7. The UE of claim 1 , wherein a numerology of the slot is based at least in part on a particular numerology of a particular bandwidth part of component carriers over which the UE supports the quantity of reference signals.
8. The UE of claim 7 , wherein the particular bandwidth part is a bandwidth part having a smallest numerology among bandwidth parts of the component carriers over which the UE supports the quantity of reference signals.
9. The UE of claim 1 , wherein a numerology of the slot is based at least in part on a configured numerology.
10. The UE of claim 1 , wherein a subcarrier spacing of the slot is based at least in part on a particular subcarrier spacing of a particular bandwidth part of component carriers over which the UE supports the quantity of reference signals.
11. The UE of claim 10 , wherein the particular bandwidth part is a bandwidth part having a largest subcarrier spacing among bandwidth parts of the component carriers over which the UE supports the quantity of reference signals.
12. The UE of claim 1 , wherein the quantity of reference signals is based at least in part on one or more of:
a configuration of the UE;
components of the UE; or
an operation mode of the UE.
13. A method of wireless communication performed by a user equipment (UE), comprising:
transmitting an indication of a quantity of reference signals that the UE supports for measuring for beam failure detection within a slot,
the quantity of reference signals being based on a first quantity of reference signals that the UE supports for beam failure detection on a first set of component carriers of a first frequency range or a second quantity of reference signals that the UE supports for beam failure detection on a second set of component carriers of a second frequency range;
receiving one or more reference signals in the slot based at least in part on transmitting the indication of the quantity of reference signals; and
transmitting an indication of beam failure detection based at least in part on measurements of the received one or more reference signals.
14. The method of claim 13 , wherein the quantity of reference signals comprises a maximum quantity of reference signals that the UE supports for beam failure detection within the slot.
15. The method of claim 13 , wherein the one or more reference signals include one or more of synchronization signal physical broadcast channel blocks or channel state information reference signals.
16. The method of claim 15 , wherein the channel state information reference signals include one or more of:
a non-zero-power channel state information reference signal,
an aperiodic channel state information reference signal,
a periodic channel state information reference signal, or
a semi-persistent channel state information reference signal.
17. The method of claim 13 , wherein the first set of component carriers corresponds to a special cell and one or more secondary cells of the first frequency range.
18. The method of claim 13 , wherein transmitting the indication of the quantity of reference signals comprises transmitting, within a control message, the indication of the quantity of reference signals.
19. The method of claim 13 , wherein a numerology of the slot is based at least in part on a particular numerology of a particular bandwidth part of component carriers over which the UE supports the quantity of reference signals.
20. The method of claim 19 , wherein the particular bandwidth part is a bandwidth part having a smallest numerology among bandwidth parts of the component carriers over which the UE supports the quantity of reference signals.
21. The method of claim 13 , wherein a numerology of the slot is based at least in part on a configured numerology.
22. The method of claim 13 , wherein a subcarrier spacing of the slot is based at least in part on a particular subcarrier spacing of a particular bandwidth part of component carriers over which the UE supports the quantity of reference signals.
23. The method of claim 22 , wherein the particular bandwidth part is a bandwidth part having a largest subcarrier spacing among bandwidth parts of the component carriers over which the UE supports the quantity of reference signals.
24. The method of claim 13 , wherein the quantity of reference signals is based at least in part on one or more of:
a configuration of the UE;
components of the UE; or
an operation mode of the UE.
25. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
transmit an indication of a quantity of reference signals that the UE supports for measuring for beam failure detection within a slot,
the quantity of reference signals being based on a first quantity of reference signals that the UE supports for beam failure detection on a first set of component carriers of a first frequency range or a second quantity of reference signals that the UE supports for beam failure detection on a second set of component carriers of a second frequency range;
receive one or more reference signals in the slot based at least in part on transmitting the indication of the quantity of reference signals; and
transmit an indication of beam failure detection based at least in part on measurements of the received one or more reference signals.
26. The non-transitory computer-readable medium of claim 25 , wherein the quantity of reference signals comprises a maximum quantity of reference signals that the UE supports for beam failure detection within the slot.
27. The non-transitory computer-readable medium of claim 25 , wherein the one or more reference signals include one or more of synchronization signal physical broadcast channel blocks or channel state information reference signals.
28. The non-transitory computer-readable medium of claim 27 , wherein the channel state information reference signals include one or more of:
a non-zero-power channel state information reference signal,
an aperiodic channel state information reference signal,
a periodic channel state information reference signal, or
a semi-persistent channel state information reference signal.
29. The non-transitory computer-readable medium of claim 25 , wherein the first set of component carriers of corresponds to a special cell and one or more secondary cells of the first frequency range.
30. The non-transitory computer-readable medium of claim 25 , wherein a numerology of the slot is based at least in part on a particular numerology of a particular bandwidth part of component carriers over which the UE supports the quantity of reference signals.