Dynamic Beta Offset Configuration for UCI Resource Allocation
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource allocation for uplink control information (UCI) due to semi-static beta offset configurations, leading to either resource wastage or insufficient UCI resources, which can fail to meet performance requirements.
Innovation Solution
A method where a base station dynamically configures beta-offset values for UCI, indicating them to user equipment (UE) through Radio Resource Control (RRC) configuration and Downlink Control Information (DCI), allowing different beta offset values for various types of UCI, and frequency interleaves UCI with data in physical uplink shared channel (PUSCH) resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a semi-static beta offset value is configured conservatively to meet performance requirements, then UCI transmission reliability is improved, but uplink resource utilization deteriorates due to resource wastage
Solution Approach 1:
The patent applies dynamics by transitioning from a semi-static beta offset configuration to a dynamic configuration where the base station can indicate different beta offset values through DCI messages. This allows the beta offset to adapt to varying channel conditions and UCI payload sizes in real-time, optimizing the balance between UCI transmission reliability and uplink resource utilization according to current system state
Solution Approach 2:
The patent implements parameter changes by allowing the beta offset value to be dynamically adjusted based on different UCI types (ACK/NACK, CQI, RI) and channel conditions. The base station selects from multiple configured beta offset values and indicates the appropriate one through DCI, enabling flexible optimization of resource allocation for different UCI scenarios
2Loss of energy
If a semi-static beta offset value is configured to maximize resource efficiency, then uplink resource utilization is improved, but UCI transmission reliability deteriorates due to insufficient resources
Solution Approach 1:
The dynamic beta offset configuration enabled by DCI indications allows the system to switch between conservative and aggressive resource allocation strategies based on real-time conditions. When channel conditions are good, smaller beta offset values can be used to save resources; when conditions deteriorate, larger beta offset values ensure sufficient UCI resources
Solution Approach 2:
Multiple beta offset values are configured for different UCI types and scenarios. The base station selects the appropriate parameter value dynamically through DCI messaging, allowing the system to adapt resource allocation parameters to match actual transmission needs rather than using a fixed conservative value
3Device complexity
If a single beta offset value is used for all UCI types, then device complexity is reduced, but adaptability deteriorates as different UCI types have different resource requirements
Solution Approach 1:
The patent segments the beta offset configuration by UCI type (ACK/NACK, CQI, RI), assigning different beta offset values to different UCI types based on their specific resource requirements and reliability needs. This segmentation is managed through separate RRC configuration parameters for each UCI type
Solution Approach 2:
The DCI mechanism provides a universal solution that can indicate different beta offset values for various UCI types through a unified signaling approach. The same DCI structure and indication mechanism works across different UCI types and scenarios, providing adaptability without proportionally increasing complexity
Data Source
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AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided that may be configured to receive a downlink control message, to determine a beta offset value for transmitting UCI based at least in part on the downlink control message, and to transmit the UCI on an uplink shared channel interleaved with data based on the determined beta offset value. The apparatus may identify the beta offset from a set of values based on the downlink control message. An apparatus may identify resources allocated for PUSCH and may map UCI to the identified resources for PUSCH in a frequency interleaved manner over a bandwidth of the identified resources. The apparatus may map data to the identified resources in a time-first or frequency-first manner, and may transmit a signal comprising UCI and data on the identified resources of the PUSCH in accordance with the mapping.