Cross-Slot Paging DCI Sharing for LTE and 5G NR Power Optimization
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently sharing paging messages across different time slots and environments, such as existing LTE and new 5G NR systems, leading to suboptimal power management and increased power consumption.
Innovation Solution
The implementation of cross-slot scheduling, where a single paging DCI schedules multiple paging messages across different time slots, allowing for the sharing of paging data between LTE and 5G NR environments, utilizing time domain resource assignments to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate paging messages are used for LTE and 5G NR systems, then each system can be independently managed, but power consumption increases and system efficiency decreases
Solution Approach 1:
The patent merges paging message handling for LTE and 5G NR systems by allowing a single paging DCI to schedule paging messages across both systems. The scheduled entity receives paging control information and processes time domain resource assignments to retrieve paging data that may include paging messages for either or both systems, consolidating what would otherwise require separate processing into a unified approach that reduces power consumption.
Solution Approach 2:
The patent implements multi-functionality by designing the paging control information and time domain resource assignment mechanisms to serve dual purposes for both LTE and 5G NR systems. A single paging DCI structure can indicate paging messages for LTE, 5G NR, or both systems simultaneously, making the paging mechanism universal rather than system-specific, thereby improving efficiency and reducing energy usage.
2Productivity
If multiple paging messages are scheduled separately, then each paging message can be optimized for its specific system, but device complexity and processing overhead increase
Solution Approach 1:
The patent combines multiple paging message scheduling operations into a single paging DCI that can schedule paging messages for both LTE and 5G NR systems simultaneously. The scheduled entity processes a unified time domain resource assignment that covers both systems, reducing the number of separate scheduling decisions and processing steps required compared to handling each system independently.
Solution Approach 2:
The patent employs preliminary action by having the network pre-configure time domain resource assignments that account for both LTE and 5G NR paging messages. The scheduled entity receives and stores this configuration in advance, allowing it to efficiently process paging messages from both systems using pre-established rules rather than making complex real-time decisions for each system separately.
Data Source
AI summary
Aspects relate to the extension of cross-slot scheduling for power efficient paging between different New Radio (NR) operating platforms or environments. In some examples, the same paging downlink control information (DCI) may be shared between existing NR user equipment (UE) and new NR UE in different time slots, where a single paging DCI schedules multiple paging messages for each operating environment. In some examples, the same paging physical downlink control channel (PDCCH) occasion may be shared in existing NR and new NR operating environments for scheduling paging messages in different time slots, but different DCIs are used for scheduling the paging messages. In some examples, the same physical downlink shared channel (PDSCH) paging message may be shared in different slots between existing NR and new NR operating environments.