Unified MAC-CE for PUCCH Spatial Relation Configuration
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Solution Overview
Problem
Current wireless communication systems, particularly those employing 5G NR, face inefficiencies due to high signaling overhead when updating and configuring spatial relationships for multiple PUCCH resources, which impacts network performance.
Innovation Solution
The proposed solution involves constructing a message that indicates a same spatial relation for multiple resources, allowing for simultaneous configuration and updating of multiple resources in reduced messages, thereby reducing signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If MAC-CE is used to update spatial relationship for multiple PUCCH resources one at a time, then configuration accuracy is maintained, but signaling overhead increases and network efficiency decreases
Solution Approach 1:
The patent combines multiple separate MAC-CE messages into a single unified MAC-CE that simultaneously updates spatial relationships for multiple PUCCH resources. This merging approach maintains configuration accuracy while reducing the number of signaling messages, thereby improving network efficiency and reducing overhead.
Solution Approach 2:
The patent creates a universal MAC-CE structure that can handle multiple PUCCH resources with different spatial relationships within a single message. This multi-functional design allows one message to serve multiple configuration purposes, eliminating the need for separate dedicated messages for each resource.
2Manufacturing precision
If separate MAC-CE messages are transmitted for each PUCCH resource, then configuration precision is maintained, but signaling overhead increases
Solution Approach 1:
Multiple separate MAC-CE messages are merged into a single integrated MAC-CE that contains spatial relationship information for multiple PUCCH resources. This reduces the total amount of signaling data transmitted while preserving the precision of individual configurations through structured fields for each resource.
Solution Approach 2:
The patent embeds multiple configuration structures within a single MAC-CE message, where each PUCCH resource configuration is nested within the unified message structure. This allows compact packaging of multiple precise configurations in one signaling unit, reducing overall overhead.
3Manufacturing precision
If multiple PUCCH resources are configured sequentially, then configuration accuracy is maintained, but time consumption increases
Solution Approach 1:
The patent merges multiple sequential configuration operations into a single simultaneous update operation. The unified MAC-CE message applies spatial relationship changes to multiple PUCCH resources at the same time, reducing configuration time while maintaining accuracy through structured data fields for each resource.
Solution Approach 2:
The patent prepares configuration information for multiple resources in advance within the unified MAC-CE structure, allowing simultaneous application of all configurations in a single message transmission. This preliminary organization of data enables batch processing that reduces total configuration time.
Data Source
AI summary
A configuration for configuring and updating the spatial relationship of multiple physical uplink control channel (PUCCH) resources in a single message, thereby reducing signaling overhead. A user equipment (UE) constructs a message associated with at least one of a plurality of component carriers (CCs) or a plurality of bandwidth parts (BWPs) indicating a same spatial relation for the at least one of the plurality of CCs or the plurality of BWPs. The UE transmits the message to a base station. The base station transmits a message to the UE configuring multiple spatial parameters for the at least one of the plurality of CCs, the plurality of BWPs, or a plurality of uplink/downlink resources.