Beam Configuration Signaling Using Group Common DCI
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing beam configurations for signal transmission and reception, leading to increased transmission latency and signaling overhead.
Innovation Solution
The use of downlink control information (DCI) to indicate beams for signal transmissions and receptions, allowing for group common DCI that assigns positions to multiple wireless devices, reducing latency and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual DCI messages are sent to each wireless device for beam configuration, then each device receives accurate beam information, but signaling overhead increases
Solution Approach 1:
The patent combines beam configuration information for multiple wireless devices into a single group common DCI message. This merging approach allows multiple devices to receive their respective beam configurations from one unified message, reducing the total number of DCI transmissions while maintaining individual device accuracy through device-specific field positions within the grouped message.
Solution Approach 2:
The group common DCI message structure is designed to serve multiple wireless devices simultaneously with a single transmission. The universal message format includes configurable fields that can accommodate beam configuration information for different devices, making the DCI structure multi-functional and efficient for group-based beam management.
2Adaptability or versatility
If individual DCI messages are sent to each wireless device for beam configuration, then each device can be configured independently, but transmission latency increases
Solution Approach 1:
By merging beam configuration information for multiple devices into a single group common DCI message, the system reduces the number of sequential transmissions required. This combination approach maintains device-specific configuration capability while significantly reducing overall transmission latency compared to sending individual DCI messages to each device separately.
3Quantity of substance
If group common DCI is used to indicate beams for multiple wireless devices, then signaling overhead is reduced, but device position assignment complexity increases
Solution Approach 1:
The group common DCI message is segmented into device-specific fields, where each wireless device is assigned a particular position or field within the message structure. This segmentation allows the receiver to efficiently extract its specific beam configuration information from the grouped message by identifying its assigned position, managing complexity through structured organization rather than unstructured data.
Solution Approach 2:
Wireless devices are pre-assigned specific positions or field identifiers within the group common DCI message structure. This preliminary assignment of positions enables devices to quickly locate and process their relevant information within the grouped message without complex real-time search or identification procedures, simplifying the overall position assignment mechanism.
Data Source
AI summary
Wireless devices may communicate via a plurality of transmission and/or reception beams. Control information may be used to indicate one or more beams to be used by wireless devices. A configuration message may indicate a portion of the control information corresponding to a particular wireless device of the wireless devices.