# US 12,192,993 B2 · Uplink control channel resource selection for scheduling request transmission

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- Number: US 12,192,993 B2
- Document ID: US12192993B2
- Status: Granted
- Kind: B2
- Application number: 17/731,406
- Filed: 2022-04-28
- Published: 2023-11-02
- Granted: 2025-01-07
- Earliest claimed: 2022-04-28
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Krishna Chaitanya Mukkera; Pranay Sudeep Rungta; Ankita Maan; Yang Yi
- Web page: https://patentgrep.com/patent/US12192993B2

## CPC

- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04W 72/1268: of uplink data flows
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04L 27/26025: {Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking (allocating sub-channels of the transmission path H04L5/003)}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/20: Control channels or signalling for resource management
- 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

Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support techniques for a user equipment (UE) to select a scheduling request resource from multiple scheduling request resources allocated across different cells based on one or more conditions. The UE may receive control signaling that indicates a first scheduling request resource on a first cell and a second scheduling request resource on a second cell. The UE may generate a scheduling request applicable to the first and second scheduling request resources. The UE may select the first scheduling request resource for transmission of the scheduling request on the first cell based on one or more of a power mode of the UE, a signal metric associated with the first cell, or a numerology of the first cell. The UE may transmit the scheduling request via the first resource on the first cell based on the selecting.

## Claims

### Claim 1

A user equipment (UE), comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and operable to execute the code to cause the UE to:
receive control signaling that indicates a first scheduling request resource on a first cell and a second scheduling request resource on a second cell;
generate a scheduling request at the UE, wherein both the first scheduling request resource on the first cell and the second scheduling request resource on the second cell are applicable to the scheduling request;
select the first scheduling request resource for transmission of the scheduling request on the first cell based at least in part on one or more of: a power mode of the UE, a signal metric associated with the first cell, or a numerology of the first cell; and
transmit the scheduling request via the first scheduling request resource on the first cell based at least in part on the selecting.

### Claim 2 (depends on 1)

The UE of claim 1, wherein the one or more processors are further operable to execute the code to cause the UE to:
operate in a reduced power mode, wherein selecting the first scheduling request resource is based at least in part on operating in the reduced power mode.

### Claim 3 (depends on 2)

The UE of claim 2, wherein, to select the first scheduling request resource, the one or more processors are operable to execute the code to cause the UE to:
select the first scheduling request resource based at least in part on a type of the first cell associated with the first scheduling request resource.

### Claim 4 (depends on 3)

The UE of claim 3, wherein:
the type of the first cell is a primary cell of a master or secondary cell group; and
selecting the first scheduling request resource is based at least in part on the type of the first cell being the primary cell of the master or secondary cell group.

### Claim 5 (depends on 1)

The UE of claim 1, wherein, to select the first scheduling request resource, the one or more processors are operable to execute the code to cause the UE to:
select the first scheduling request resource based at least in part on the signal metric associated with the first cell being greater than a second signal metric associated with the second cell.

### Claim 6 (depends on 5)

The UE of claim 5, wherein the one or more processors are further operable to execute the code to cause the UE to:
receive one or more reference signals via the first cell and the second cell; and
measure the signal metric associated with the first cell and the second signal metric associated with the second cell based at least in part on the one or more reference signals, wherein selecting the first scheduling request resource is based at least in part on the measuring.

### Claim 7 (depends on 5)

The UE of claim 5, wherein, to transmit the scheduling request, the one or more processors are operable to execute the code to cause the UE to:
transmit the scheduling request according to a first transmission power, the first transmission power based at least in part on a value of the signal metric.

### Claim 8 (depends on 5)

The UE of claim 5, wherein the signal metric and the second signal metric comprise reference signal received power metrics.

### Claim 9 (depends on 1)

The UE of claim 1, wherein, to select the first scheduling request resource, the one or more processors are operable to execute the code to cause the UE to:
select the first scheduling request resource based at least in part on the numerology of the first cell being greater than or equal to a numerology of the second cell.

### Claim 10 (depends on 9)

The UE of claim 9, wherein the numerology of the first cell and the numerology of the second cell are equal, and wherein the one or more processors are further operable to execute the code to cause the UE to:
select the first scheduling request resource based at least in part on a type of the first cell.

### Claim 11 (depends on 1)

The UE of claim 1, wherein the first scheduling request resource and the second scheduling request resource are at least partially overlapping in time.

### Claim 12 (depends on 1)

The UE of claim 1, wherein the first scheduling request resource and the second scheduling request resource are non-overlapping in time.

### Claim 13 (depends on 1)

The UE of claim 1, wherein:
the control signaling indicates a same scheduling request identifier for the first scheduling request resource and the second scheduling request resource;
generating the scheduling request is based at least in part on the same scheduling request identifier; and
the selecting is based at least in part on both the first scheduling request resource and the second scheduling request resource being associated with the same scheduling request identifier as the scheduling request.

### Claim 14

A method for wireless communication at a user equipment (UE), comprising:
receiving control signaling that indicates a first scheduling request resource on a first cell and a second scheduling request resource on a second cell;
generating a scheduling request at the UE, wherein both the first scheduling request resource on the first cell and the second scheduling request resource on the second cell are applicable to the scheduling request;
selecting the first scheduling request resource for transmission of the scheduling request on the first cell based at least in part on one or more of: a power mode of the UE, a signal metric associated with the first cell, or a numerology of the first cell; and
transmitting the scheduling request via the first scheduling request resource on the first cell based at least in part on the selecting.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
operating in a reduced power mode, wherein selecting the first scheduling request resource is based at least in part on operating in the reduced power mode.

### Claim 16 (depends on 15)

The method of claim 15, wherein selecting the first scheduling request resource comprises:
selecting the first scheduling request resource based at least in part on a type of the first cell associated with the first scheduling request resource.

### Claim 17 (depends on 16)

The method of claim 16, wherein:
the type of the first cell is a primary cell of a master or secondary cell group; and
selecting the first scheduling request resource is based at least in part on the type of the first cell being the primary cell of the master or secondary cell group.

### Claim 18 (depends on 14)

The method of claim 14, wherein selecting the first scheduling request resource comprises:
selecting the first scheduling request resource based at least in part on the signal metric associated with the first cell being greater than a second signal metric associated with the second cell.

### Claim 19 (depends on 18)

The method of claim 18, further comprising:
receiving one or more reference signals via the first cell and the second cell; and
measuring the signal metric associated with the first cell and the second signal metric associated with the second cell based at least in part on the one or more reference signals, wherein selecting the first scheduling request resource is based at least in part on the measuring.

### Claim 20 (depends on 18)

The method of claim 18, wherein transmitting the scheduling request comprises:
transmitting the scheduling request according to a first transmission power, the first transmission power based at least in part on a value of the signal metric.

### Claim 21 (depends on 18)

The method of claim 18, wherein the signal metric and the second signal metric comprise reference signal received power metrics.

### Claim 22 (depends on 14)

The method of claim 14, wherein selecting the first scheduling request resource comprises:
selecting the first scheduling request resource based at least in part on the numerology of the first cell being greater than or equal to a numerology of the second cell.

### Claim 23 (depends on 22)

The method of claim 22, wherein the numerology of the first cell and the numerology of the second cell are equal, and wherein selecting the first scheduling request resource comprises:
selecting the first scheduling request resource based at least in part on a type of the first cell.

### Claim 24 (depends on 14)

The method of claim 14, wherein the first scheduling request resource and the second scheduling request resource are at least partially overlapping in time.

### Claim 25 (depends on 14)

The method of claim 14, wherein the first scheduling request resource and the second scheduling request resource are non-overlapping in time.

### Claim 26 (depends on 14)

The method of claim 14, wherein:
the control signaling indicates a same scheduling request identifier for the first scheduling request resource and the second scheduling request resource;
generating the scheduling request is based at least in part on the same scheduling request identifier; and
the selecting is based at least in part on both the first scheduling request resource and the second scheduling request resource being associated with the same scheduling request identifier as the scheduling request.

### Claim 27

An apparatus for wireless communication at a user equipment (UE), comprising:
means for receiving control signaling that indicates a first scheduling request resource on a first cell and a second scheduling request resource on a second cell;
means for generating a scheduling request at the UE, wherein both the first scheduling request resource on the first cell and the second scheduling request resource on the second cell are applicable to the scheduling request;
means for selecting the first scheduling request resource for transmission of the scheduling request on the first cell based at least in part on one or more of: a power mode of the UE, a signal metric associated with the first cell, or a numerology of the first cell; and
means for transmitting the scheduling request via the first scheduling request resource on the first cell based at least in part on the selecting.

### Claim 28 (depends on 27)

The apparatus of claim 27, further comprising:
means for operating in a reduced power mode, wherein selecting the first scheduling request resource is based at least in part on operating in the reduced power mode.

### Claim 29 (depends on 28)

The apparatus of claim 28, wherein the means for selecting the first scheduling request resource comprise:
means for selecting the first scheduling request resource based at least in part on a type of the first cell associated with the first scheduling request resource.

### Claim 30

A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by one or more processors to:
receive control signaling that indicates a first scheduling request resource on a first cell and a second scheduling request resource on a second cell;
generate a scheduling request at the UE, wherein both the first scheduling request resource on the first cell and the second scheduling request resource on the second cell are applicable to the scheduling request;
select the first scheduling request resource for transmission of the scheduling request on the first cell based at least in part on one or more of: a power mode of the UE, a signal metric associated with the first cell, or a numerology of the first cell; and
transmit the scheduling request via the first scheduling request resource on the first cell based at least in part on the selecting.
