Adaptive Channel Access Timing in Wireless Systems
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Solution Overview
Problem
In 5G communication systems, the increasing demand for wireless resources leads to a need for effective channel sharing between different communication systems, with existing technologies struggling to ensure fair resource distribution and maintain performance, particularly in environments where multiple systems share the same band.
Innovation Solution
The implementation of an adaptive Licensed-Assisted Access (LAA) communication system that uses a load-based listen-before-talk (LBT) scheme, where a processor determines the transmission timing of an initial signal based on parameters and detection intervals to manage channel access, ensuring fair sharing and efficient resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If different communication systems share a channel to increase wireless resource utilization, then resource efficiency is improved, but channel access fairness and system performance deteriorate
Solution Approach 1:
The patent applies preliminary action by requiring new communication systems to perform listen-before-talk (LBT) procedures and detect existing signals before accessing the channel. This preliminary detection mechanism ensures that existing systems maintain their channel access rights while allowing fair sharing with new systems, thus resolving the contradiction between resource utilization and access fairness.
2Reliability
If a communication system restricts usage of another system's resources to maintain performance, then system performance is preserved, but resource distribution efficiency worsens
Solution Approach 1:
The patent applies local quality by allowing different communication systems to have different levels of channel access rights based on their establishment timing. Existing systems are granted priority access in their specific time slots, while new systems can access the channel when no existing systems are transmitting. This localized differentiation resolves the contradiction by preserving existing system performance while enabling efficient resource distribution to new systems.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). According to various embodiments of the present disclosure, an apparatus according to aspects of a communication system that shares a channel with another communication system may include at least one processor and at least one transceiver. The at least one processor may be configured to determine a transmission timing of an initial signal based on a parameter for the initial signal that indicates that the apparatus occupies a channel and at least one detection interval for detecting a signal of the another communication system. The at least one transceiver is configured to transmit the initial signal according to the transmission timing.