# US 12,016,024 B2 · User equipment-specific scheduling request repetitions

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- Number: US 12,016,024 B2
- Document ID: US12016024B2
- Status: Granted
- Kind: B2
- Application number: 17/959,018
- Filed: 2022-10-03
- Published: 2023-02-02
- Granted: 2024-06-18
- Earliest claimed: 2017-09-25
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Chong Li; Wanshi Chen; Jing Jiang; Jing Sun
- Web page: https://patentgrep.com/patent/US12016024B2

## CPC

- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- H04L 1/0072: {Error control for data other than payload data, e.g. control data}
- H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)}
- H04L 1/189: {Transmission or retransmission of more than one copy of a message}
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- 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)}
- H04L 5/006: {Quality of the received signal, e.g. BER, SNR, water filling}
- H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 52/0229: {where the received signal is a wanted signal}
- H04W 52/48: during retransmission after error or non-acknowledgment
- H04W 72/566: of the information or information source or recipient
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- 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

Methods, systems, and devices for wireless communications are described. A base station and a user equipment (UE) may communicate in a high reliability and low latency communications system (e.g., ultra-reliable low latency communications (URLLC)). The base station may signal a UE-specific scheduling request (SR) repetition configuration that the UE may utilize to transmit an instantaneous SR when a buffer status report (BSR) is triggered by a new data packet. The UE may repeatedly transmit the SR until a number of repetitions or a time period of repetitions is met or an uplink grant is received from the base station. The SR repetition configuration may include a number of parameters including a repetition setting, power settings, a resource allocation, and an acknowledgement/negative acknowledgment (ACK/NACK) procedure.

## Claims

### Claim 1

An apparatus for wireless communication, comprising:
a processor, the processor comprising a combination of computing devices;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
receive a parameter for scheduling request (SR) repetition, a number of SR repetitions being based on the parameter;
drop an SR repetition of the number of SR repetitions, the SR repetition being to be in a collision with an acknowledgement or negative acknowledgment ACK/NACK feedback;
transmit at least the ACK/NACK feedback.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
drop the SR repetition in responsive to identifying the collision.

### Claim 3

An apparatus for wireless communication, comprising:
a processor, the processor comprising a combination of computing devices;
memory in electronic communication with the processor; and
instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
transmit a parameter for scheduling request (SR) repetition, a number of SR repetitions being based on the parameter;
receive SR repetitions based on the number of SR repetitions,
wherein one SR repetition of the number of SR repetitions configured is dropped, the SR repetition being to be in a collision with an acknowledgement or negative acknowledgment ACK/NACK feedback.

### Claim 4

A method for wireless communication at a user equipment (UE), comprising:
receiving a parameter for scheduling request (SR) repetition, a number of SR repetitions being based on the parameter;
dropping an SR repetition of the number of SR repetitions, the SR repetition being to be in a collision with an acknowledgement or negative acknowledgment ACK/NACK feedback;
transmitting at least the ACK/NACK feedback.

### Claim 5 (depends on 4)

The method of claim 4, dropping the SR repetition being responsive to identifying the collision.

### Claim 6

A method for wireless communication at a base station, comprising:
transmitting a parameter for scheduling request (SR) repetition, a number of SR repetitions being based on the parameter;
receiving, based on the configuration for SR repetition, SR repetitions based on the number of SR repetitions;
wherein one SR repetition of the number of SR repetitions is dropped, the SR repetition being to be in a collision with an acknowledgement or negative acknowledgment ACK/NACK feedback.