Uplink Control Resource Selection for Dynamic Beta Offset Ambiguity

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Solution Overview

Problem

In wireless communication technologies like 5G NR, user equipment (UE) is configured with either a semi-static beta offset or a set of dynamic beta offsets for transmitting control information, but not both, leading to undefined UE behavior when dynamic beta offsets are configured without a specified selection.

Innovation Solution

The UE determines a beta offset by selecting the first or last dynamic beta offset in the configured set or using a default offset when no selection is specified, or refrains from transmitting UCI, and the base station performs corresponding determinations for receiving UCI, ensuring functional operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the UE is configured with a set of dynamic beta offsets but no selection is specified, then the configuration flexibility is improved, but the UE behavior becomes undefined

Engineering Contradiction:

Improveconfiguration flexibilityVSAvoidUE behavior definition

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The UE autonomously selects a beta offset from the configured set based on predefined selection criteria (e.g., selecting the first or last offset, or using a default offset) when the DCI does not specify a selection. This self-service mechanism resolves the undefined behavior while maintaining configuration flexibility.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If the UE is configured with both semi-static and dynamic beta offsets, then the adaptability is improved, but the device complexity increases

Engineering Contradiction:

Improvebeta offset configuration optionsVSAvoidconfiguration management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system allows dynamic switching between semi-static and dynamic beta offset configurations. The UE can operate with semi-static offsets for stable scenarios and switch to dynamic offsets with DCI-based selection when adaptability is needed, managing complexity through conditional configuration activation.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The beta offset configuration system is designed to support multiple configuration types (semi-static and dynamic) within a unified framework. The same RRC configuration structure can accommodate both modes, and the UE uses a universal selection mechanism that works regardless of which configuration type is active.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12574933B2Techniques for determining resources for transmitting wireless communications

Publication Date: 2026.03.10 QUALCOMM INC

AI summary

Aspects described herein relate to receiving downlink control information (DCI) scheduling or activating shared channel resources, determining, based on a first one in a set of multiple possible dynamic beta offsets included in a dynamic beta offset configuration, a beta offset for determining a number of the shared channel resources to be used to transmit uplink control information (UCI), and transmitting a shared data channel over the shared data channel resources, the shared data channel including the UCI. Other aspects relate to transmitting the DCI and receiving the shared data channel.