Spectrum Resource Control for 5G Shared Access
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Solution Overview
Problem
Current wireless communication systems face challenges in coordinating shared radio resources for spectrum sharing among multiple network operating entities, particularly in ensuring timely and reliable access to critical communications in next-generation 5G networks.
Innovation Solution
A spectrum resource control unit coordinates shared radio resources by allocating exclusive and shared access resources, prioritizing access for Priority Access License (PAL) users and General Authorized Access (GAA) users, using mechanisms like listen-before-talk and round-robin priority rotation to manage access in the 3.5 GHz Citizens Broadband Radio Service (CBRS) spectrum, ensuring timely and reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spectrum is shared among multiple network operating entities, then spectrum utilization efficiency is improved, but coordination complexity and access reliability deteriorate
Solution Approach 1:
The patent segments the shared spectrum resources into dedicated resources and shared resources. Dedicated resources are allocated to specific network operating entities for exclusive use, while shared resources are available for opportunistic access. This segmentation reduces coordination complexity by clearly defining access rights for different resource types while maintaining high spectrum utilization through shared access to common resources.
2Reliability
If exclusive access resources are allocated for critical communications, then access reliability is improved, but spectrum utilization efficiency deteriorates
Solution Approach 1:
The patent applies local quality by providing different access guarantees to different resources based on their intended use. Critical communication resources receive exclusive access guarantees for high reliability, while non-critical resources are made available for shared access to improve overall spectrum utilization. This differentiated approach ensures that reliability requirements are met only where necessary.
3Adaptability or versatility
If multiple access mechanisms are implemented for different user priorities, then service quality is improved, but system complexity increases
Solution Approach 1:
The patent implements dynamic priority rotation among network operating entities for accessing shared resources. Instead of static priority assignments, the system dynamically rotates which entity has priority access to shared resources in different time slots. This dynamic approach provides fair service quality for multiple priorities while keeping system complexity manageable through a simple rotation mechanism.
Data Source
AI summary
Wireless communications systems and methods related to coordinating shared radio resources for spectrum sharing are provided. A spectrum resource control unit allocates a first resource for exclusive access by a first network operating entity in a spectrum. The exclusive access is configured for at least one of a network information communication or a feedback communication. The spectrum resource control unit allocates a second resource in the spectrum for shared access by the first network operating entity and a second network operating entity. The shared access is configured for at least a downlink control information communication. The spectrum resource control unit transmits, to the first network operating entity and the second network operating entity, a configuration indicating the first resource allocated for exclusive access by the first network operating entity and the second resource allocated for shared access by the first network operating entity and the second network operating entity.