Base Station Uplink Multiplexing Configuration for Resource Efficiency
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Solution Overview
Problem
Current 4G mobile communication systems face inefficiencies in radio resource utilization, leading to increased latency in uplink data transmission, particularly in scenarios with a high number of user equipment devices and demanding applications like Internet of Vehicles and Industrial Control, due to the orthogonal allocation of time-frequency radio resources.
Innovation Solution
Implementing a multi-user non-orthogonal uplink multiplexing transmission (MU-NOMT) configuration mechanism, where the base station generates and transmits an uplink multiplexing transmission configuration message carrying power domain and non-orthogonal transmission parameters to user equipment, allowing for partial overlap of radio resources to improve utilization efficiency and reduce latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If orthogonal resource allocation is used to avoid mutual interference between user equipments, then transmission reliability is improved, but radio resource utilization efficiency deteriorates
Solution Approach 1:
The patent merges orthogonal and non-orthogonal resource allocation schemes by allowing some user equipments to use non-orthogonal overlapping resources while others use orthogonal resources. This combination enables the system to achieve both interference avoidance (through orthogonal allocation for some UEs) and improved resource utilization (through non-orthogonal overlapping allocation for other UEs), thereby resolving the contradiction between transmission reliability and radio resource utilization efficiency.
2Object-generated harmful factors
If orthogonal resource allocation is used for uplink data transmission, then interference between user equipments is avoided, but transmission latency increases
Solution Approach 1:
The patent applies partial non-orthogonal resource allocation where only certain user equipments are allowed to use overlapping non-orthogonal resources, rather than all UEs. This partial application enables reduced transmission latency for selected UEs while maintaining interference avoidance for others, thus resolving the contradiction between avoiding interference and reducing transmission latency.
3Reliability
If licensed frequency bands are used for wireless communication, then communication quality is improved, but frequency spectrum resources become insufficient
Solution Approach 1:
The patent changes the resource allocation parameter from strictly orthogonal to allowing non-orthogonal overlapping allocation. This parameter change enables more user equipments to access the licensed frequency bands simultaneously by utilizing the same time-frequency resources with different spatial or power domain characteristics, thereby increasing the effective quantity of available frequency spectrum resources while maintaining communication quality.
Data Source
AI summary
A base station and a user equipment are provided. The base station performs a multi-user non-orthogonal uplink multiplexing transmission configuration procedure to generate an uplink multiplexing transmission configuration message based on a radio resource utilization efficiency. The uplink multiplexing transmission configuration message carries a power domain uplink multiplexing transmission parameter and a non-orthogonal uplink multiplexing transmission parameter. The base station transmits the uplink multiplexing transmission configuration message to the user equipment to make the user equipment transmit an uplink data signal to the base station according to the uplink multiplexing transmission configuration message.