Group Scheduling for PDCCH Overhead Reduction
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Solution Overview
Problem
There is a need to extend the DL SPS/UL CG configuration framework to multiple UEs, reduce resource reservation for DL SPS reception/UL CG transmission, and decrease control signaling overhead when activating, modifying, or releasing configurations, while facilitating low latency modifications without re-configuring or re-activating resources.
Innovation Solution
The implementation of group scheduling for PDCCH overhead reduction, where UEs share resources and use a processor to determine values for PDSCH or PUSCH fields from reduced information bits, and a base station transmits configuration information to enable efficient resource utilization and reduced latency in configurations and transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual DL SPS/UL CG configurations are used for each UE, then resource allocation precision is improved, but control signaling overhead increases
Solution Approach 1:
The patent combines multiple DL SPS/UL CG configurations into a single group configuration that can be shared among multiple UEs. Instead of maintaining separate configurations for each UE, the system creates a unified configuration structure that reduces the number of individual configuration messages needed, thereby reducing control signaling overhead while maintaining precise resource allocation through the group-based approach.
Solution Approach 2:
The group configuration structure is designed to serve multiple UEs simultaneously, making it a universal configuration that can be applied across different user equipment. This multi-functional configuration reduces the need for UE-specific configurations, decreasing control signaling overhead while still providing precise resource allocation for each UE within the group.
2Productivity
If multiple DL SPS/UL CG configurations are jointly activated, then resource utilization efficiency is improved, but control signaling overhead increases
Solution Approach 1:
The patent merges multiple configuration activations into a single group activation message. Instead of sending separate activation commands for each DL SPS/UL CG configuration, the system transmits a unified activation command that simultaneously activates multiple configurations, thereby reducing control signaling overhead while maintaining high resource utilization efficiency.
Solution Approach 2:
The system performs preliminary grouping of configurations before activation, organizing multiple DL SPS/UL CG configurations into a pre-defined group structure. This preliminary organization enables joint activation through a single command, reducing the control signaling required compared to individual activation commands for each configuration.
3Measurement precision
If DL SPS/UL CG configurations are modified individually, then configuration precision is improved, but latency increases
Solution Approach 1:
The patent combines multiple configuration modifications into a single group modification command. Instead of processing and transmitting separate modification commands for each DL SPS/UL CG configuration, the system creates a unified modification command that updates multiple configurations simultaneously, thereby reducing modification latency while maintaining configuration precision through the group-based modification approach.
4Measurement precision
If resources are reserved for individual UEs, then resource allocation precision is improved, but resource utilization efficiency decreases
Solution Approach 1:
The patent creates universal resource reservations that can be shared among multiple UEs within a group. Instead of reserving resources exclusively for individual UEs, the system establishes resource reservations at the group level that can be dynamically allocated to multiple UEs, thereby improving resource utilization efficiency while maintaining precise resource allocation through the group-based resource management approach.
Data Source
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AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure relates to methods and apparatuses for group scheduling for physical downlink control channel (PDCCH) overhead reduction.