TECHNIQUES FOR DETECTING BLOCKAGE CONDITIONS

Abstract

Methods, systems, and devices for wireless communication are described. A user equipment (UE) may detect and report blockage conditions based on measuring signal strengths of reference signals. A UE may determine a slew rate for the signal strength, corresponding to a rate of change of a signal strength parameter (e.g., a reference signal received power (RSRP) or a received signal strength indicator (RSSI) ) with respect to time, and report the slew rate to a base station to indicate signal strength degradation (e.g., due to a blockage). In some examples, the UE may define multiple slew rates associated with different rates of change of the signal strength parameter with respect to time. When the UE crosses a level of slew rate, the UE may indicate this to the base station to initiate mitigation procedures. In some examples, the techniques described herein may be extended to reporting slew rates for multiple beams.

Specification

CLAIMS
1. A method for wireless communication at a user equipment (UE),

comprising:

receiving, from a base station, a set of reference signals over a link between the base station and the UE;

transmitting a signal indicating a slew rate associated with the link, wherein the slew rate comprises a rate of change of a signal strength parameter associated with the set of reference signals with respect to time, and wherein the signal indicating the slew rate is transmitted based at least in part on a slew rate setting associated with the link; and

communicating with the base station based at least in part on transmitting the signal and according to the slew rate setting.
2. The method of claim 1, further comprising: receiving, from the base station, a second signal indicating the slew rate setting, wherein the signal indicating the slew rate is transmitted based at least in part on receiving the second signal.
3. The method of claim 1, further comprising: transmitting, to the base station, a second signal indicating the slew rate setting, wherein the signal indicating the slew rate is transmitted based at least in part on transmitting the second signal.
4. The method of claim 1, further comprising: transmitting, to the base station, a second signal indicating a UE

capability, wherein the slew rate setting is based at least in part on the UE capability.

5. The method of claim 1, wherein communicating with the base station comprises:

receiving a second signal indicating one or more reference signal

resources; and

monitoring the one or more reference signal resources according to the slew rate setting and a beam refinement procedure or a beam failure recovery procedure.
6. The method of claim 5, wherein communicating with the base station further comprises:

receiving a third signal indicating a beam switch at the base station, wherein monitoring the one or more reference signal resources is further based at least in part on receiving the third signal.

7. The method of claim 5, wherein communicating with the base station further comprises:

switching from a first beam to a second beam for communications with the base station based at least in part on monitoring the one or more reference signal resources.
8. The method of claim 1, wherein communicating with the base station comprises:

switching from a first beam to a second beam for communications with the base station according to the slew rate setting.

9. The method of claim 1, wherein:

the slew rate setting comprises one or more slew rate thresholds; and

the signal indicating the slew rate is transmitted based at least in part on the slew rate satisfying a slew rate threshold of the one or more slew rate thresholds.

10. The method of claim 1, wherein:

the slew rate comprises a first slew rate corresponding to a first beam associated with the link; and

the signal further indicates a second slew rate corresponding to a second beam associated with the link.

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