UE Micro Base Station Selection Backhaul Link Activation
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Solution Overview
Problem
In ultra-dense wireless networks, the inefficient use of backhaul link resources leads to insufficient resource allocation, causing data communication issues due to varying user behavior and complex interference environments, resulting in some micro base stations exceeding their load while others have underutilized resources.
Innovation Solution
User equipment (UE) selects and activates micro base stations based on broadcast backhaul link information, considering factors like link type, status, level, and acceptable load, to optimize resource allocation and reduce energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If micro base stations are deployed in high density to improve data rate and user experience, then network coverage and capacity are enhanced, but total power consumption of the network increases significantly
Solution Approach 1:
The patent implements periodic wake-up and sleep cycles for micro base stations. Base stations alternate between active states (providing service) and sleep states (saving energy), with wake-up signals triggering activation when needed. This periodic operation allows the network to maintain high density deployment for capacity while reducing overall power consumption through cyclic dormancy.
Solution Approach 2:
The patent enables user equipment to autonomously select and activate suitable micro base stations based on broadcast information about backhaul link status and load conditions. This self-service mechanism allows the network to dynamically activate only the necessary base stations without requiring centralized control, improving both energy efficiency and response to user demands.
2Use of energy by moving object
If micro base stations enter energy-saving state to reduce power consumption, then network energy efficiency improves, but available backhaul link resources decrease
Solution Approach 1:
The patent implements a feedback mechanism where micro base stations broadcast information about their backhaul link status, load conditions, and energy-saving state to user equipment. This feedback enables UEs to make informed decisions about which base stations to activate, ensuring that backhaul resources are adequately utilized even when many base stations are in energy-saving mode. The system dynamically adjusts resource allocation based on real-time conditions.
Solution Approach 2:
The patent creates a dynamic system where the network configuration is not fixed but adapts in real-time. Base stations can transition between active and sleep states, and UEs can dynamically select and switch between different base stations based on current backhaul availability and service requirements. This dynamic behavior allows the network to optimize the balance between energy consumption and resource availability continuously.
3Measurement precision
If user equipment autonomously selects and activates micro base stations based on backhaul link information, then link selection accuracy improves, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by having micro base stations broadcast their backhaul link status, load information, and energy-saving state before being selected by user equipment. This advance information provision allows UEs to make accurate selection decisions without requiring complex real-time analysis or centralized coordination. The preparation work is done by the base stations themselves, simplifying the UE's selection task.
Data Source
AI summary
A communication method, including receiving, by user equipment (UE), information about one or more backhaul links that is broadcast by different micro base stations, selecting, by the UE, a micro base station corresponding to backhaul link information that meets a preset condition, and accessing, by the UE, the selected micro base station when the selected micro base station is in an active state, or when the selected micro base station is in an inactive state, sending, by the UE, an activation signal to the selected micro base station, and accessing, by the UE, the selected micro base station after the micro base station is activated. Hence, a backhaul link can be used appropriately.