# US 12,009,887 B2 · Evaluation period in multi-panel user equipment

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- Number: US 12,009,887 B2
- Document ID: US12009887B2
- Status: Granted
- Kind: B2
- Application number: 18/314,942
- Filed: 2023-05-10
- Published: 2023-12-14
- Granted: 2024-06-11
- Earliest claimed: 2019-09-10
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Muhammad Nazmul Islam; Juergen Cezanne; Arash Mirbagheri; Awlok Singh Josan
- Web page: https://patentgrep.com/patent/US12009887B2

## CPC

- H04B 7/0417: Feedback systems
- H04B 7/0617: {for beam forming}
- H04B 7/0404: the mobile station comprising multiple antennas, e.g. to provide uplink diversity
- H04B 7/0628: {Diversity capabilities}
- H04B 7/0874: {using subgroups of receive antennas}
- H04B 7/088: {using beam selection}
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04L 5/0057: {Physical resource allocation for CQI}
- H04W 36/06: Reselecting a communication resource in the serving access point
- H04W 36/305: {Handover due to radio link failure (control signalling for hand-off failure H04W36/0079)}
- H04L 5/001: {the frequencies being arranged in component carriers}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04B: TRANSMISSION
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for establishing, by a user equipment (UE), a first time period to evaluate one or more quality parameters of one or more reference signals, wherein the first time period is based on at least one of a number of panels of the UE or a number of beams that the UE monitors simultaneously; determining, by the UE, a quality parameter of a beam or a cell based on the one or more quality parameters of the one or more reference signals; and determining, by the UE, whether the one or more quality parameters of the one or more reference signals exceeds a quality threshold.

## Claims

### Claim 1

A method for wireless communication at a user equipment (UE), comprising:
establishing a first time period to evaluate one or more quality parameters of one or more reference signals, wherein the first time period is based on a discontinuous reception (DRX) cycle configuration and a scaling factor, wherein the scaling factor is based on a number of panels of the UE;
transmitting, to a network entity, an indication of the number of panels of the UE;
determining a quality parameter of a beam or a cell based on the one or more quality parameters of the one or more reference signals during the first time period;
determining whether the one or more quality parameters of the one or more reference signals exceeds a quality threshold; and
transmitting, at a timing based on the first time period, an uplink signal to the network entity based on the determination of whether the one or more quality parameters of the one or more reference signals exceeds the quality threshold.

### Claim 2 (depends on 1)

The method of claim 1, wherein the one or more reference signals correspond to at least one of a synchronization signal block (SSB), channel state information reference signal (CSI-RS), discovery reference signal (DRS), tracking reference signal (TRS) and demodulation reference signal (DMRS).

### Claim 3 (depends on 1)

The method of claim 1, further comprising performing an evaluation for one or more combinations of a serving cell measurement, neighbor cell measurement, radio link monitoring (RLM), beam failure detection (BFD), and candidate beam detection (CBD).

### Claim 4 (depends on 1)

The method of claim 1, wherein the wherein the scaling factor is based on a number of beams that the UE monitors simultaneously, the method further comprising transmitting an indication of the number of beams that the UE monitors simultaneously.

### Claim 5 (depends on 1)

The method of claim 1, wherein UE indicates through one or more combinations of Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH).

### Claim 6 (depends on 4)

The method of claim 4, wherein the one or more parameters are configured by the network entity based on the number of panels of the UE or the number of beams that the UE monitors simultaneously; and wherein the first time period depends on the network configured parameter.

### Claim 7 (depends on 1)

The method of claim 1, further comprising transmitting an uplink signal to the network entity based on the determination that the one or more quality parameters of the one or more reference signals exceeds the quality threshold.

### Claim 8 (depends on 7)

The method of claim 7, wherein the uplink signal corresponds to one or more of Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH).

### Claim 9 (depends on 1)

The method of claim 1, wherein the first time period corresponds to a number of non-quasi-co-located (non-QCL) reference signals that the UE monitors simultaneously.

### Claim 10 (depends on 1)

The method of claim 1, further comprising:
generating at least one of one or more failure indications or one or more out-of-synchronization indications based on the determination that the one or more quality parameters of the one or more reference signals exceeds the quality threshold;
determining whether the at least one of the one or more failure indications or the one or more out-of-synchronization indications exceed a failure threshold;
establishing a radio link failure (RLF) based on the determination that the at least one of the one or more failure indications or the one or more out-of-synchronization indications exceed the failure threshold; and
detecting a new cell in response to establishing the RLF.

### Claim 11 (depends on 1)

The method of claim 1, further comprising transmitting a quality report to the network entity based on the determination that the one or more quality parameters of the one or more reference signals fails to exceed the quality threshold.

### Claim 12 (depends on 1)

The method of claim 1, further comprising receiving the one or more reference signals from the network entity.

### Claim 13

A method of wireless communication at a network entity, comprising:
transmitting one or more reference signals to a user equipment (UE);
determining a number of panels of the UE based on one or more quality parameters of the one or more reference signals, wherein determining the number of panels of the UE comprises receiving, from the UE, an indication of the number of panels of the UE; and
receiving an uplink signal from the UE at a timing, wherein the timing is based on a discontinuous reception (DRX) cycle configuration and a scaling factor, wherein the scaling factor is based on the number of panels of the UE.

### Claim 14 (depends on 13)

The method of claim 13, further comprising receiving a feedback signal from the UE in response to transmitting the one or more reference signals, wherein the feedback signal includes the one or more quality parameters of the one or more reference signals.

### Claim 15 (depends on 13)

The method of claim 13, wherein the one or more reference signals correspond to at least one of a synchronization signal block (SSB), channel state information reference signal (CSI-RS), discovery reference signal (DRS), tracking reference signal (TRS) and demodulation reference signal (DMRS).

### Claim 16 (depends on 13)

The method of claim 13, wherein a number of panels for monitoring the one or more reference signals is less than or equal to an actual number of UE panels, and wherein the actual number of UE panels has been previously reported by the UE.

### Claim 17 (depends on 13)

The method of claim 13, further comprising determining a number of beams that the UE monitors simultaneously during communications with the network entity wherein the number of beams for simultaneously monitoring reference signals is less than or equal to an actual number of beams that that UE can use to simultaneously monitor the one or more reference signals.

### Claim 18 (depends on 13)

The method of claim 13, wherein the uplink signal corresponds to one or more of Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH).

### Claim 19

An apparatus for wireless communication at a user equipment (UE), comprising:
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory, wherein the one or more processors are configured to execute the instructions to:
establish a first time period to evaluate one or more quality parameters of one or more reference signals, wherein the first time period is based on a discontinuous reception (DRX) cycle configuration and a scaling factor, wherein the scaling factor is based on a number of panels of the UE;
transmit, to a network entity, an indication of the number of panels of the UE through one or more combinations of Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH);
determine a quality parameter of a beam or a cell based on the one or more quality parameters of the one or more reference signals;
determine whether the one or more quality parameters of the one or more reference signals exceeds a quality threshold; and
transmit, at a timing based on the first time period, an uplink signal to a network entity based on the determination of whether the one or more quality parameters of the one or more reference signals exceeds the quality threshold.

### Claim 20

An apparatus for wireless communication at a network entity, comprising:
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory, wherein the one or more processors are configured to execute the instructions to:
transmit one or more reference signals to a user equipment (UE);
determine a number of panels of the UE based on one or more quality parameters of the one or more reference signals, wherein to determine the number of panels of the UE the one or more processors are configured to receive an indication of the number of panels of the UE; and
receive an uplink signal from a UE at a timing, wherein the timing is based on a discontinuous reception (DRX) cycle configuration and a scaling factor, wherein the scaling factor is based on the number of panels of the UE.
