Dynamic Resource Block Allocation for Unlicensed Band Uplink
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Solution Overview
Problem
Conventional automatic uplink transmission on unlicensed bands leads to low spectrum utilization and unreliable data transmission due to pre-allocated resource blocks being idle or not suited for current data transmission services, resulting in inefficiencies and latency issues.
Innovation Solution
An electronic device and method that selectively allocates and prioritizes resource blocks for automatic uplink transmission based on current data transmission requirements, allowing for dynamic selection and configuration of resource blocks for multiple user equipment, ensuring optimal resource utilization and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resource blocks are allocated in advance to ensure low latency, then reliability of service with high latency requirements is improved, but spectrum utilization deteriorates when allocated resource blocks remain idle
Solution Approach 1:
The patent implements dynamic resource block allocation where pre-configured resource blocks can be dynamically reassigned. When a user equipment has no data to transmit, its allocated resource blocks become available for reallocation to other users through a dynamic resource allocation mechanism, transforming static pre-allocated resources into dynamic shared resources that adapt to actual transmission needs.
Solution Approach 2:
The system changes the allocation status parameter of resource blocks from fixed to flexible. Resource blocks transition between states (allocated, idle, reallocated) based on real-time channel conditions and user data availability, allowing the same physical resources to serve different users at different times, thereby improving both latency reliability and spectrum utilization.
2Ease of operation
If resource blocks are randomly allocated, then allocation simplicity is improved, but reliability of data transmission deteriorates when allocated resources are not adapted for current data transmission services
Solution Approach 1:
The patent introduces feedback mechanisms where user equipment reports channel conditions, data buffer status, and service requirements to the base station. The base station uses this feedback information to make informed resource block allocation decisions, matching resource characteristics with user needs while maintaining automated operation.
Solution Approach 2:
The system performs preliminary configuration of multiple resource blocks with different characteristics (size, location, timing) in advance, but the actual selection and activation of specific resource blocks occurs dynamically based on real-time service requirements, combining preparatory actions with adaptive decision-making.
Data Source
AI summary
An electronic device, a wireless communication method, and a computer readable medium, where the electronic device for wireless communication includes a processing circuit. The processing circuit is configured to select resource blocks to be used for automatic uplink transmission from amongst a pre-assigned plurality of resource blocks on an unlicensed band, and implement control to use the selected resource blocks for implementing automatic uplink transmission.