Multiple Link Access Point Selection for Uplink Power Minimization
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Solution Overview
Problem
Current MEC networks face challenges in efficiently managing uplink traffic and minimizing power consumption while maintaining a minimum bit rate and low latency, particularly in heterogeneous cellular networks with multiple access points, as existing methods lack practical rules for selecting the optimal number and identity of access points.
Innovation Solution
A method for a user terminal to establish a multiple link with multiple access points by determining an optimal number of transmission channels based on channel quality indicators, bandwidth, and noise power, ensuring a minimum bit rate is achieved while minimizing power consumption, by calculating the optimal number of channels and allocating bit rates and powers across these channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mobile terminal connects simultaneously to several SBSs in the millimeter band by forming beams in several directions to increase throughput on the uplink and reduce computation latency, then the bit rate and latency performance is improved, but the device complexity increases due to the need to manage multiple transmission channels and access points
Solution Approach 1:
The patent segments the uplink transmission into multiple parallel channels, each connecting to different access points (SBSs). The data stream is divided and transmitted simultaneously through these segmented channels, increasing the aggregate throughput while maintaining manageable complexity through systematic channel selection and power allocation algorithms.
Solution Approach 2:
The patent implements dynamic channel selection and power allocation based on real-time channel quality indicators. The system dynamically determines the optimal number of active channels and allocates power across them, adapting to changing network conditions to maximize throughput while minimizing complexity.
2Productivity
If the terminal transmits data to multiple access points to reduce computation latency and increase throughput, then the quality of service is improved, but the power consumption increases
Solution Approach 1:
The patent changes the power transmission parameter dynamically across different channels based on channel quality indicators. By adjusting the power allocation parameter according to the quality of each access point link, the system achieves low latency and high throughput while minimizing overall power consumption through optimal power distribution.
3Ease of manufacture
If a statistical approach is used to handle link blocking probabilities as proposed in existing literature, then the implementation is simplified, but the practical rule for selecting the number and identity of access points is not provided
Solution Approach 1:
The patent introduces a feedback mechanism where channel quality indicators are continuously monitored and used to determine the optimal number of active channels. This feedback loop provides a practical selection rule by using measured channel conditions to dynamically adjust the number of access points to connect, combining implementation simplicity with operational guidance.
Data Source
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AI summary
The present invention relates to a method for accessing a network by means of a multiple link with a plurality of network access points. When the terminal wishes to obtain a quality of service expressed as a minimum uplink bit rate constraint, it determines the identity and number of access points with which it must establish a link to satisfy this constraint while minimizing its transmission power. The invention is particularly applicable to a mobile access control (MEC) network in which a mobile terminal can request the network to handle a computational task subject to a latency constraint.