Radio Resource Allocation for Inter-Terminal Communication
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Solution Overview
Problem
In existing radio communication systems, inter-terminal communication-intended radio terminals face inflexibility in radio resource allocation, as they are fixed and lack adaptability, particularly in scenarios requiring low power consumption and miniaturization, such as Machine Type Communication (MTC) terminals, which can lead to reduced service areas due to limited transmission power.
Innovation Solution
A radio communication method where a radio base station dynamically allocates a second radio resource for inter-terminal communication, allowing flexibility between inter-terminal communication-intended radio terminals and mobile phone terminals, using existing radio resources prepared for communication between the base station and terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If transmission power of MTC terminal is reduced to achieve low power consumption, then power consumption is improved, but service area coverage deteriorates
Solution Approach 1:
The patent combines MTC terminal communication with mobile phone terminal communication by allowing the mobile phone terminal to relay MTC data to the base station. This merging enables MTC terminals to use lower transmission power while still achieving network access through the mobile phone terminal's communication channel, thus reducing power consumption without completely sacrificing service area coverage.
Solution Approach 2:
The mobile phone terminal acts as an intermediary between the MTC terminal and the base station. The MTC terminal communicates with the mobile phone terminal using low power, and the mobile phone terminal forwards the communication to the base station. This intermediary approach allows the MTC terminal to operate at low power while the mobile phone terminal handles the higher power communication requirements for broad coverage.
2Reliability
If dedicated radio resources are allocated for inter-terminal communication, then communication reliability is improved, but radio resource flexibility deteriorates
Solution Approach 1:
The patent makes existing radio resources multi-functional by allowing them to serve both traditional base station communication and inter-terminal communication. The mobile phone terminal uses its existing uplink resources to relay MTC terminal data, eliminating the need for dedicated inter-terminal resources while maintaining communication reliability through the universal use of existing radio infrastructure.
Solution Approach 2:
The patent introduces dynamic resource allocation where the mobile phone terminal adaptively uses its available radio resources for relaying MTC communication based on current network conditions and resource availability. This dynamic approach maintains flexibility in radio resource usage while ensuring reliable inter-terminal communication when needed.
Data Source
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AI summary
An object of the technology in the disclosure is to flexibly allocate a radio resource between an inter-terminal communication-intended radio terminal and a mobile phone terminal. A radio communication method in the disclosure causes a radio base station to allocate a second radio resource that is to be used in communication among multiple radio terminals, out of a first radio resource that is prepared for communication between the radio base station and a radio terminal. Furthermore, the first radio resource includes a radio resource for a radio resource request, and the radio base station allocates the second radio resource out of a radio resource for the radio resource request.