Unified Multi-Cell Uplink Wakeup Signal Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face inefficiencies in managing uplink wakeup signals for multiple cells, leading to high signaling overhead, latency, and power consumption due to individual UL-WUS configurations for each cell, especially in scenarios with mobile UEs or multiple NES cells.
Innovation Solution
Implementing a common UL-WUS configuration applicable to multiple cells within a geographical area, zone, tracking area, or RNA, allowing UEs to use a unified approach for transmitting UL-WUS, reducing the need for individual configurations and optimizing power and network resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual UL-WUS configurations are provided for each cell, then each cell can be independently controlled, but signaling overhead and network complexity increase significantly
Solution Approach 1:
The patent applies universality by creating a single UL-WUS configuration that serves multiple cells simultaneously. The configuration includes a list of cell identifiers and corresponding UL-WUS occasions, allowing one configuration structure to manage wake-up signals across multiple cells rather than requiring separate configurations for each cell, thereby reducing signaling overhead and complexity.
Solution Approach 2:
The patent merges multiple cell-specific UL-WUS configurations into a single unified configuration. By combining the configuration elements (time resources, power parameters, cell identifiers) into one integrated structure, the system achieves reduced signaling overhead while maintaining the ability to control multiple cells independently through the unified structure.
2Reliability
If individual UL-WUS configurations are provided for each cell, then precise control is achieved, but power consumption increases
Solution Approach 1:
The unified UL-WUS configuration allows the UE to determine wake-up signal transmission parameters once and apply them across multiple cells, eliminating the need to process and interpret multiple separate configurations. This reduces the UE's processing burden and power consumption while maintaining reliable signal transmission through the comprehensive single configuration.
Solution Approach 2:
By merging multiple configuration interpretations into a single configuration processing operation, the system reduces the cumulative power consumption that would result from processing individual cell configurations separately. The UE processes one unified configuration instead of multiple separate ones, directly reducing power consumption while maintaining transmission reliability.
3Ease of operation
If individual UL-WUS configurations are provided for each cell, then detailed control is possible, but latency increases
Solution Approach 1:
The unified UL-WUS configuration is established in advance and includes pre-configured information about multiple cells and their corresponding wake-up occasions. This preliminary configuration allows the UE to immediately determine the correct cell and timing parameters without needing to process or interpret multiple separate configurations in real-time, thereby reducing setup latency.
Solution Approach 2:
The patent combines multiple configuration setup operations into a single preliminary configuration action. By establishing one unified configuration that encompasses multiple cells simultaneously, the system eliminates the sequential latency that would result from processing individual cell configurations one at a time, thereby reducing overall setup time.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an uplink wakeup signal (UL-WUS) configuration associated with multiple cells, wherein the UL-WUS configuration indicates resources associated with one or more UL-WUS occasions associated with the multiple cells. The UE may identify a cell, of the multiple cells, to which a UL-WUS is to be transmitted. The UE may identify a valid UL-WUS occasion, of the one or more UL-WUS occasions, for transmitting the UL-WUS to the cell based at least in part on the UL-WUS configuration. The UE may transmit, to the cell, the UL-WUS using resources associated with the valid UL-WUS occasion. Numerous other aspects are described.