LTE Scheduling Processor Resource Allocation Strategy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LTE communication systems face challenges in efficiently allocating communication resources due to timing and processing limitations, leading to increased processing power requirements and complexity, which makes it difficult to implement cost-efficient and flexible hardware solutions.
Innovation Solution
The proposed solution involves a scheduling processor that allocates time slots and frequency resources based on received control data from other user equipment in a current or preceding time slot, while ignoring user data in the current slot, and a control channel managing processor that allocates signaling resources on the control channel to inform the user equipment of the allocated time and frequency resources. This approach relaxes processing requirements by ignoring uplink HARQ retransmissions and reserving resources for potential retransmissions, allowing for more flexible and cost-efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the scheduler processes all user data including current slot uplink data for resource allocation decisions, then scheduling accuracy is improved, but processing time and complexity increase
Solution Approach 1:
The patent applies preliminary action by making scheduling decisions based on previously received uplink data before the current slot data is available. The scheduler uses uplink data from slot n-1 to make allocation decisions for slot n, performing the scheduling action in advance of when all data would be available, thus reducing processing time while maintaining acceptable scheduling accuracy
Solution Approach 2:
The patent extracts only the necessary historical data (uplink data from previous slots) required for scheduling decisions, excluding current slot data that would add processing complexity. This selective extraction of relevant information reduces the data processing burden while maintaining sufficient scheduling accuracy
2Reliability
If the system allocates resources for potential HARQ retransmissions, then reliability is improved, but resource utilization efficiency decreases
Solution Approach 1:
The patent applies dynamics by making resource allocation for HARQ retransmissions flexible rather than static. The system dynamically adjusts whether to allocate retransmission resources based on actual channel conditions and traffic requirements, allowing resource allocation to adapt to changing conditions and improving overall resource utilization while maintaining reliability
Solution Approach 2:
The patent changes the parameter of resource allocation from fixed reservation to conditional allocation. By modifying the allocation strategy to only reserve resources when actually needed based on channel quality and traffic patterns, the system maintains HARQ reliability while improving resource utilization efficiency
3Productivity
If the scheduler implements complex resource allocation algorithms, then scheduling performance is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies segmentation by dividing the scheduling process into distinct functional modules: uplink data reception module, scheduling decision module, and resource allocation module. This segmentation allows each module to perform a specific function with simpler logic, reducing overall system complexity while maintaining scheduling performance
Solution Approach 2:
The patent introduces an intermediary scheduling layer that simplifies the complexity between data reception and resource allocation. The scheduler acts as an intermediary that processes historical data and generates allocation decisions, reducing the complexity burden on both the data reception and resource allocation components while maintaining overall scheduling performance
Data Source
AI summary
A scheduling processor allocates a time slot of a communication protocol to a user equipment for data transmission based on received control data of the same or another user equipment in a current time slot and received user data of the same or another user equipment in a preceding time slot, while ignoring user data of the same or any other user equipment received in the current time slot. The scheduling processor also allocates a frequency resource to the user equipment. A control channel managing processor allocates signaling resources on a control channel for the submission of control information to the user equipment, which informs of the time slot allocated by the time domain scheduling processor as well as of the frequency resource allocated by the frequency domain scheduling processor.