Base Station Resource Allocation for Millimeter-Wave Direct Communication
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Solution Overview
Problem
Current communication systems face challenges in increasing data rates beyond the theoretical limit of frequency usage efficiency, particularly in high-frequency bands like millimeter-waves, where signal attenuation significantly reduces service coverage, making it difficult to provide efficient data services over wider frequency bands.
Innovation Solution
The method involves a base station transmitting beams to terminals, receiving strength information, determining unused resources with minimal interference, and allocating them for direct communication between terminals without a base station, allowing for efficient resource allocation and reduced signal attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data services are provided over a wider frequency band using millimeter-wave bands of 30 GHz or higher, then data rate is improved, but signal attenuation increases significantly with distance, causing service coverage to reduce
Solution Approach 1:
The patent introduces a base station as an intermediary to facilitate resource allocation for direct terminal-to-terminal communication. The base station transmits beams to terminals, receives strength information, determines unused resources with minimal interference, and allocates these resources for direct communication between terminals, thereby enabling high-data-rate communication while managing signal attenuation through coordinated resource management
Solution Approach 2:
The patent changes the communication parameter from traditional base-station-mediated communication to direct terminal-to-terminal communication using allocated time and frequency resources. This parameter change allows terminals to communicate directly without base station involvement in the actual data transmission, improving efficiency while the base station maintains oversight for resource allocation and interference management
2Speed
If frequency usage efficiency is increased through technology improvements, then data rate is improved, but frequency usage efficiency is already close to its theoretical limit, making further improvement difficult
Solution Approach 1:
The patent introduces dynamic resource allocation where the base station determines unused time and frequency resources based on beam strength information from terminals, and dynamically allocates these resources for direct terminal communication. This dynamic approach allows the system to adaptively improve frequency usage efficiency by utilizing previously unused resources, thereby increasing data rates without requiring fundamental technological breakthroughs
Solution Approach 2:
The patent recovers unused time and frequency resources that were not being utilized for base station communication and reallocates them for direct terminal-to-terminal communication. By discarding the traditional requirement for base station involvement in all communications and recovering these idle resources, the system increases overall frequency usage efficiency and enables higher data rates
3Productivity
If resources are allocated for direct communication between terminals, then transmission and reception efficiency is improved, but interference to base station communication must be controlled within a predetermined threshold
Solution Approach 1:
The patent implements a feedback mechanism where terminals transmit beam strength information to the base station, and the base station uses this feedback to determine which time and frequency resources can be safely allocated for direct terminal communication without causing excessive interference to base station communication. This feedback loop ensures that resource allocation decisions are made based on actual channel conditions, maintaining interference within acceptable thresholds while maximizing transmission efficiency
Data Source
AI summary
A method for operating resources by a base station in a communication system is provided. The method includes transmitting at least one beam to at least one terminal, receiving strength information of the at least one beam from the at least one terminal, determining at least one of resources which are not used for communication between the at least one terminal and the base station, and resources, whose interference to communication between the base station and the at least one terminal is less than or equal to a predetermined threshold, based on the strength information of the at least one beam, and allocating the determined resources as resources for communication which is performed between terminals without the base station.