Interrupted Transmission Indication for New Radio Bandwidth Parts
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Solution Overview
Problem
Next-generation wireless communication systems face challenges in efficiently managing multiple active bandwidth parts (BWPs) with different numerologies, leading to increased power consumption due to the need to monitor multiple control channels across various BWPs, which is particularly problematic in scenarios involving interrupted transmission indications.
Innovation Solution
A user equipment (UE) is configured to decode control information from a physical downlink control channel (PDCCH) in one active BWP and identify an interrupted transmission indicator, allowing it to determine the location of such indicators in other BWPs, thereby reducing power consumption by monitoring only a common search space within one active BWP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE monitors multiple control channels across various BWPs to handle interrupted transmission indications, then the reliability of transmission management is improved, but the power consumption increases
Solution Approach 1:
The patent extracts the interrupted transmission indication monitoring function from all BWPs and concentrates it in a single common search space within one active BWP. This allows the UE to maintain reliable transmission management by checking INT indicators in the common search space while avoiding the need to monitor control channels across all BWPs, thereby reducing power consumption.
Solution Approach 2:
The common search space in one active BWP serves as a universal monitoring point for interrupted transmission indications across all BWPs. The INT indicator in the common search space provides system-wide transmission status information that applies to multiple BWPs, making a single monitoring location serve multiple functions and reducing the need for separate monitoring in each BWP.
2Reliability
If the UE monitors control channels in multiple active BWPs with different numerologies, then the completeness of transmission indication detection is improved, but the device complexity increases
Solution Approach 1:
The patent extracts the interrupted transmission indication information from individual BWP-specific control channels and places it in a common search space. This allows the UE to detect transmission indications for multiple BWPs by monitoring a single common search space, reducing monitoring complexity while maintaining detection completeness through the universal nature of the common search space.
Solution Approach 2:
The patent merges the interrupted transmission indication monitoring function across all BWPs into a single common search space. Instead of separately monitoring control channels in each BWP with different numerologies, the UE monitors one common search space that consolidates transmission indication information for all BWPs, thereby reducing device complexity.
3Measurement precision
If the UE monitors control channels in all active BWPs, then the accuracy of transmission status detection is improved, but the time consumption increases
Solution Approach 1:
The patent extracts interrupted transmission indication information from multiple BWP-specific control channels and consolidates it in a single common search space. This allows the UE to detect transmission status accurately by monitoring one common search space instead of multiple BWP-specific channels, reducing the time required for monitoring while maintaining detection accuracy through the comprehensive nature of the common search space.
Data Source
AI summary
Technology for a user equipment (UE) operable for interrupted transmission indication is disclosed. The UE can be configured to decode, at the UE, control information carried by a physical downlink control channel (PDCCH) in a first active bandwidth part (BWP). The UE can be configured to identify, at the UE, an interrupted transmission (INT) indicator from the control information in the first active BWP. The UE can be configured to determine, at the UE, a location of an INT indicator for a second active BWP from the INT indicator for the first active BWP.