Group Common DCI Beam Configuration for Lower Signaling Overhead
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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 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 transmission latency and signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate DCI messages are used for each wireless device's beam indication, then each device can receive dedicated beam information, but transmission latency and signaling overhead increase
Solution Approach 1:
The patent combines beam indications for multiple wireless devices into a single group common DCI message. The base station transmits one unified DCI that contains beam information for multiple devices simultaneously, rather than sending separate DCI messages to each device. This merging approach reduces the number of transmissions required, thereby reducing transmission latency while maintaining accurate beam indication for each device through device-specific field interpretations.
Solution Approach 2:
The group common DCI message serves multiple functions simultaneously: it provides beam indications for multiple wireless devices in a single message, reducing signaling overhead. The universal structure accommodates different device requirements through configurable fields that can be interpreted differently by different devices based on their assigned positions or identifiers within the common message.
2Measurement precision
If separate DCI messages are used for each wireless device's beam indication, then each device can receive dedicated beam information, but signaling overhead increases
Solution Approach 1:
The patent merges beam indications for multiple wireless devices into a single group common DCI message. By combining what would otherwise be multiple separate DCI transmissions into one unified message, the total signaling overhead is reduced. The message contains consolidated beam information that can be parsed by multiple devices according to their specific assignments, maintaining indication accuracy while minimizing redundant signaling.
Solution Approach 2:
Within the group common DCI message, the patent employs segmentation by assigning different fields or portions of the message to different wireless devices. Each device is configured to interpret specific segments of the common DCI based on its identity or assigned position. This segmentation allows multiple devices to extract their respective beam indications from a single consolidated message, reducing overall signaling overhead while preserving device-specific accuracy.
3Productivity
If group common DCI is used for multiple wireless devices, then transmission latency and signaling overhead are reduced, but device-specific beam configuration complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring wireless devices with information about their assigned positions or identifiers within the group common DCI message structure. Before receiving the actual beam indications, devices are already prepared to interpret the common DCI correctly based on their pre-assigned configurations. This preliminary setup simplifies the real-time processing of the common DCI, reducing the perceived complexity during operation while maintaining high beam management efficiency.
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.