Wireless Spectrum Allocation Based on User Equipment Capability
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Solution Overview
Problem
Wireless service operators face challenges in efficiently utilizing both Priority Access Licenses (PAL) and General Authorized Access (GAA) spectrum, particularly in high utilization rate scenarios, where determining the optimal allocation of licensed versus unlicensed spectrum to user equipment devices is necessary to maximize spectrum quality and efficiency while minimizing interference.
Innovation Solution
A method where wireless base stations receive user equipment capability information, determine whether to allocate licensed or unlicensed spectrum based on this information, and segment available spectrum into bandwidth parts, prioritizing allocation based on user equipment capabilities and spectrum quality scores to optimize spectrum usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If licensed PAL spectrum is allocated to user equipment devices, then spectrum quality and reliability are improved, but spectrum availability and flexibility deteriorate
Solution Approach 1:
The system dynamically selects between licensed and unlicensed spectrum allocation based on real-time conditions including user equipment capabilities, service requirements, and network state. The base station determines spectrum type on-demand rather than using fixed allocation, enabling the system to adapt between reliability-oriented licensed spectrum and flexibility-oriented unlicensed spectrum based on current needs.
2Adaptability or versatility
If unlicensed GAA spectrum is allocated to user equipment devices, then spectrum availability and flexibility are improved, but interference and reliability deteriorate
Solution Approach 1:
The system applies different spectrum allocation strategies to different user equipment devices based on their specific capabilities and service requirements. User equipment with capabilities suited for unlicensed spectrum receive GAA allocations for flexibility, while those requiring reliability receive PAL allocations. This localized quality approach ensures each device receives appropriate spectrum type matching its needs.
Solution Approach 2:
The system converts the potential harm of interference in unlicensed spectrum into a benefit by selectively allocating GAA spectrum only to user equipment and services that can tolerate or benefit from the interference-prone environment. The capability-based filtering transforms what would be a universal disadvantage into a targeted opportunity for appropriate workloads.
3Ease of operation
If spectrum is allocated without considering user equipment capabilities, then allocation simplicity is maintained, but spectrum utilization efficiency deteriorates
Solution Approach 1:
The system performs preliminary assessment of user equipment capabilities before spectrum allocation decisions. By evaluating device capabilities in advance and maintaining capability information records, the base station can make informed spectrum type selections without complex real-time analysis, balancing simplicity with efficiency through pre-computed capability matching.
Data Source
AI summary
Methods and apparatus for managing spectrum in a wireless communications system. In an exemplary method embodiment, a wireless base station: (i) receives user equipment capability information from a first user equipment device; (ii) determines whether to allocate licensed or unlicensed spectrum to the first user equipment device based on the received user equipment capability information; and (iii) communicates a first spectrum allocation grant to the first user equipment device identifying the allocated spectrum for use by the first user equipment device. In various embodiments, the licensed and unlicensed spectrum are divided into bandwidth parts that are scored or ranked based on the quality and/or quantity of the spectrum bandwidth part.