Multi-Subframe Scheduling for Wireless Data Throughput
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently scheduling data across multiple subframes in multi-node systems, leading to suboptimal data transmission and interference management, particularly in high-density node environments.
Innovation Solution
A method for multi-subframe scheduling that includes receiving multi-subframe control information, which allows for retransmission and hybrid automatic repeat request (HARQ) processes across multiple subframes, enabling flexible scheduling and resource allocation within a multi-subframe window, and utilizing a combination of full and partial control information for enhanced data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-node coordinated communication is implemented, then data throughput is improved, but scheduling complexity increases
Solution Approach 1:
The patent segments the scheduling problem by introducing subframe sets that group multiple subframes together, allowing coordinated communication to be managed in manageable units. The eNodeB schedules multiple subframes within a set as a unit, reducing the complexity of managing individual subframe schedules across multiple nodes while maintaining the throughput benefits of coordination.
Solution Approach 2:
The patent applies preliminary action by having the eNodeB determine and configure subframe sets in advance before actual data transmission occurs. The scheduling decision is made beforehand for multiple subframes, allowing the system to prepare coordinated communication parameters ahead of time, thereby reducing real-time scheduling complexity while maintaining high throughput.
2Object-affected harmful factors
If subframe sets are configured for coordinated communication, then interference management is improved, but control information requirements increase
Solution Approach 1:
The patent merges control information for multiple subframes into a single unified control structure. Instead of requiring separate control signals for each subframe in the set, the eNodeB transmits one control information block that manages scheduling decisions for all subframes in the set simultaneously, reducing the total amount of control information while maintaining effective interference management.
Solution Approach 2:
The subframe set configuration serves multiple functions: it enables coordinated communication, manages interference, and provides a framework for both initial transmission and retransmission scheduling. This multi-functional approach reduces the need for separate control mechanisms, thereby reducing overall control information requirements while improving interference management.
3Reliability
If retransmission is allowed in subframes not configured as multi-subframe sets, then data reliability is improved, but scheduling flexibility is reduced
Solution Approach 1:
The patent introduces dynamic flexibility by allowing the system to adaptively determine whether a subframe can accommodate retransmission based on real-time conditions. The eNodeB can dynamically decide to allow or disallow retransmission in specific subframes within a set, balancing reliability needs with scheduling flexibility requirements rather than using a fixed rigid rule.
Solution Approach 2:
The patent applies local quality by treating different subframes within a set differently based on their specific characteristics and requirements. Not all subframes are treated uniformly; the eNodeB can identify which subframes are suitable for retransmission and which are not, allowing localized optimization that maintains overall scheduling flexibility while ensuring data reliability where needed.
Data Source
AI summary
A method for multiple subframe sets scheduling (hereinafter, multi-subframe scheduling) in a window of the multi-subframe scheduling (hereinafter, multi-subframe scheduling window) performed by a terminal is provided. The method includes receiving multi-subframe control information for the multi-subframe scheduling, and receiving downlink data or transmitting uplink data using the multi-subframe control information, wherein the multi-subframe control information includes a field for retransmission related to each subframe of the multiple subframe sets, and the retransmission is performed in a subframe not configured as the multiple subframe sets.