Coordinated Resource Partitioning for 5G Spectrum Interference
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Solution Overview
Problem
Current wireless communication systems face interference and inefficiencies in shared radio frequency spectrum access, particularly in 5G networks, leading to increased signaling overhead and communication latency due to the need for medium-sensing procedures among multiple network operating entities.
Innovation Solution
The implementation of coordinated resource partitioning, where exclusive and prioritized time resources are allocated to network operating entities, allowing for reduced interference and eliminating the need for medium-sensing procedures, thereby enhancing communication efficiency and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple network operating entities share radio frequency spectrum resources, then network resource utilization is improved, but interference increases and medium-sensing procedures are required
Solution Approach 1:
The patent segments the shared radio frequency spectrum resources by allocating specific time resources exclusively to each network operating entity. This time-based segmentation allows multiple entities to utilize the spectrum simultaneously without interference, as each entity operates in its designated time slots without needing medium-sensing procedures.
2Reliability
If medium-sensing procedures are implemented for shared spectrum access, then interference management is improved, but communication latency increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring and notifying each network operating entity of its exclusive time resource allocations before transmission begins. This advance notification eliminates the need for real-time medium-sensing procedures, allowing entities to transmit immediately in their allocated slots without sensing delays, thus reducing communication latency while maintaining reliable interference management.
3Object-affected harmful factors
If exclusive time resources are allocated to network operating entities, then interference is reduced, but signaling overhead increases
Solution Approach 1:
The patent merges the notification of exclusive time resource allocations with existing system broadcast mechanisms. By integrating the resource allocation information into already-transmitted system information blocks, the patent reduces additional signaling overhead while still providing each network operating entity with the necessary knowledge of its exclusive time slots, thereby maintaining interference reduction benefits without excessive signaling.
Data Source
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AI summary
Compressed modulation feedback in codeword transmission with per-layer-modulation mapping is discussed. In the proposed compression schemes, the number of bits of feedback is compressed by excluding some of the allowed combinations of per-layer modulation orders.