# US 12,184,380 B2 · Method, system, and electronic apparatus for detecting beamforming failure

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- Number: US 12,184,380 B2
- Document ID: US12184380B2
- Status: Granted
- Kind: B2
- Application number: 17/840,751
- Filed: 2022-06-15
- Published: 2023-04-27
- Granted: 2024-12-31
- Earliest claimed: 2021-10-22
- Assignees: Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Applicants: Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Inventors: Yun-Yan Huang
- Web page: https://patentgrep.com/patent/US12184380B2

## CPC

- H04B 7/06964: {Re-selection of one or more beams after beam failure}
- H04B 7/088: {using beam selection}
- H04B 17/309: Measuring or estimating channel quality parameters
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- Y02D 30/70: in wireless communication networks
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A method, a system, and an electronic apparatus for detecting failure of beamed signals can be applied in a user equipment. The method acquires a signal quality and determines whether such signal quality reaches a threshold value. If the signal quality is determined to be reaching the threshold value, determining whether the signal quality is continuously equal to or above the threshold value. If the signal quality parameter reaches the failure threshold value, determining that the beam occurred a wave beam failure.

## Claims

### Claim 1

A method for detecting beam failure applied to a user equipment, the method comprising:
obtaining at least one signal quality parameter of a beam;
determining whether the signal quality parameter reaches a threshold value;
if the signal quality parameter reaches the threshold value, determining whether the signal quality parameter reaches a failure threshold; and
if the at least one signal quality parameter reaches the failure threshold, determining that a beam failure occurred in the beam;
wherein the determining of whether the signal quality parameter reaches the threshold value, comprises:
determining whether the signal quality parameter reaches the threshold value is due to a jittering of the beam;
if the signal quality parameter reaches the threshold value is due to the jittering of the beam, deleting the signal quality parameter.

### Claim 2 (depends on 1)

The method of claim 1, wherein the determining whether the signal quality parameter reaches the failure threshold, comprises:
counting a number that the signal quality parameter reaches the threshold value within a default time;
if the number that the signal quality parameter reaches the threshold value reaches a preset number, determining that the signal quality parameter reaches the threshold value.

### Claim 3 (depends on 1)

The method of claim 1, wherein the determining of whether the signal quality parameter reaches the failure threshold, comprises:
counting a number that the signal quality parameter continuously reaches the threshold value;
if the number that the signal quality parameter continuously reaches the threshold value reaches the failure threshold, determining that the beam occurred a beam failure.

### Claim 4 (depends on 1)

The method of claim 1, wherein the at least one signal quality parameter comprises a reference signal receiving power and a synchronization signal and PBCH block.

### Claim 5 (depends on 1)

The method of claim 1, wherein the at least one signal quality parameter to determine the beam failure comprises a reference receiving power Rth, a current signal quality parameter of the beam Ri, a former signal quality parameter of the beam Ri−1, a next signal quality parameter of the beam Ri+1, and a jitter parameter of the beam m, wherein, the value of the jitter parameter m is chosen from [0,1].

### Claim 6 (depends on 5)

The method of claim 5, wherein the determining whether the signal quality parameter reaches the threshold value is due to the jittering of the beam, comprises:
if the signal quality parameter meets Ri−1>Rth, Ri<(1+m)*Rth, and Ri+1>Rth, determining that the beam failure is not due to a jittering of the beam.

### Claim 7 (depends on 3)

The method of claim 3, wherein the signal quality parameter of determining the beam failure comprises a time period of the signal quality parameter of the beam T, a data flow of the beam S, the signal quality parameter continuously reaches the threshold value N, and a minimum number of reaching the failure threshold Nmin.

### Claim 8 (depends on 7)

The method of claim 7, wherein the method comprising determining the failure threshold;
the determining the failure threshold, comprises:
if
N
<
S
T
,
setting the signal quality parameter continuously reaches the threshold value N as the failure threshold.

### Claim 9 (depends on 8)

The method of claim 8, wherein if N<Nmin, setting the threshold value as Nmin.

### Claim 10

A system for detecting beam failure applied to a user equipment, the system comprising:
a processor configured to:
obtain at least one signal quality parameter of a beam;
determine whether the signal quality parameter reaches a threshold value;
if the signal quality parameter reaching the threshold value, determine whether the signal quality parameter reaches a failure threshold, and determine whether the signal quality parameter reaches the threshold value is a jitter of the beam; if the signal quality parameter reaches the threshold value is due to a jittering of the beam, delete the signal quality parameter; and
if the signal quality parameter reach the failure threshold, determine that a beam failure occurred in the beam.

### Claim 11 (depends on 10)

The system for detecting beam failure of claim 10, wherein the processor is further configured to:
count a number that the signal quality parameter reaches the threshold value within a default time;
if the number that the signal quality parameter reaches the threshold value reaches a preset number, determine that the signal quality parameter reaches the threshold value.

### Claim 12 (depends on 10)

The system for detecting beam failure of claim 10, wherein the processor is further configured to:
count a number that the signal quality parameter continuously reaches the threshold value;
if the number that the signal quality parameter continuously reaches the threshold value reaches the failure threshold, determine that a beam failure occurred in the beam.

### Claim 13 (depends on 10)

The system for detecting beam failure of claim 10, wherein the at least one signal quality parameter further comprises a reference signal receiving power and a synchronization signal and PBCH block.

### Claim 14 (depends on 10)

The system for detecting beam failure of claim 10, wherein the at least one signal quality parameter to determine the beam failure further comprises: a reference receiving power Rth, current signal quality parameter of the beam Ri, former signal quality parameter of the beam Ri−1, a next signal quality parameter of the beam Ri+1, and a jitter parameter of the beam m, wherein, the value of the jitter parameter m is chosen from [0,1].

### Claim 15 (depends on 14)

The system for detecting beam failure of claim 14, wherein the processor is further configured to determine whether the signal quality parameter reaches the threshold value is the jitter of the beam, comprises:
if the signal quality parameter meets Ri−1>Rth, Ri<(1+m)*Rth, and Ri+1>Rth, determine that the beam failure is judged as not due to a jittering of the beam.

### Claim 16 (depends on 12)

The system for detecting beam failure of claim 12, wherein the parameter of determining the beam failure further comprises a time period of the signal quality parameter of the beam T, a data flow of the beam S, the signal quality parameter continuously reaches the threshold value N, and a minimum number of reaching the failure threshold Nmin.

### Claim 17 (depends on 16)

The beam failure detecting method of claim 16, wherein the processor is further configured for determining the failure threshold;
wherein the determining the failure threshold, comprises:
if
N
<
S
T
,
set the signal quality parameter continuously reaches the threshold value N as the failure threshold,
if N<Nmin, set the threshold value as Nmin.

### Claim 18

An electronic apparatus of detecting beam failure, comprising:
a non-transitory memory storage;
a processor; and
one or more computer programs, wherein the one or more computer programs are stored in the non-transitory memory storage and configured to be executed by the processor, the one or more computer programs including instructions for:
obtain at least one signal quality parameter of a beam;
determine whether the signal quality parameter reaches a threshold value;
if the signal quality parameter reaching the threshold value, determine whether the signal quality parameter reaches a failure threshold;
if the signal quality parameter reaching a failure threshold, determine that a beam failure occurred in the beam;
wherein the determining of whether the signal quality parameter reaches value is due to a jittering of the beam;
if the signal quality parameter reaches the threshold value is due to the jittering of the beam, deleting the signal quality parameter.