Wireless Relay MCS Selection via APN Load
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LTE networks face inefficiencies in managing Modulation and Coding Schemes (MCS) in complex multi-relay environments, where MMEs and eNodeBs struggle to effectively control MCS based on signal strength and quality.
Innovation Solution
A wireless network controller determines the number of wireless access APNs served by User Equipment (UE) in wireless relays and selects an appropriate MCS, directing the UE and wireless base station to use this scheme for efficient data communication, thereby optimizing MCS selection across multiple relays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If MMEs and eNodeBs control MCS based on signal strength and quality, then MCS selection is simplified, but effectiveness and efficiency deteriorate in multi-relay environments
Solution Approach 1:
The patent introduces a wireless network controller as an intermediary component that sits between the MME/eNodeB and the relay UEs. This controller specifically manages MCS selection for relay UEs based on the number of served APNs, while traditional MME/eNodeB continue handling signal strength-based MCS for regular UEs. This intermediary approach resolves the contradiction by adding specialized functionality without overhauling the entire control architecture.
Solution Approach 2:
The patent segments the MCS control function into two distinct pathways: one for regular UEs controlled by MME/eNodeB based on signal metrics, and another for relay UEs controlled by the wireless network controller based on APN load. This segmentation allows each control mechanism to be optimized for its specific use case, maintaining simplicity where applicable while improving effectiveness where needed.
2Ease of operation
If MCS is selected based on signal strength and quality, then control is straightforward, but performance optimizes poorly in complex relay chains
Solution Approach 1:
The patent changes the selection parameter for relay UE MCS from signal strength/quality to the number of served APNs. This parameter change fundamentally improves productivity in relay chains because it directly accounts for the load and complexity each relay UE handles, ensuring that relays serving more APNs receive more robust MCS configurations appropriate for their higher operational demands.
Solution Approach 2:
The wireless network controller acts as an intermediary that translates APN load information into appropriate MCS selections for relay UEs. This intermediary process maintains ease of operation by automating the complex decision-making, while simultaneously improving productivity by ensuring MCS selections are optimally matched to actual relay workload conditions.
3Device complexity
If traditional MCS control is used in multi-relay environments, then system complexity is low, but management capability is insufficient
Solution Approach 1:
The wireless network controller serves as a specialized intermediary that enhances adaptability for relay UE MCS management without complicating the overall system structure. Regular UE MCS control remains with MME/eNodeB, while relay UE MCS control is delegated to the new controller, which adapts MCS selections based on APN load information specific to relay operations.
Solution Approach 2:
The wireless network controller is designed with multi-functionality, handling both the management of relay UE MCS selections and the monitoring of APN load information. This universal approach allows the system to maintain low structural complexity while gaining enhanced adaptability, as the same controller component performs multiple related functions rather than requiring separate specialized systems.
Data Source
AI summary
A wireless communication network selects Modulation and Coding Schemes (MCS) for wireless relays. A wireless network controller determines the amount of wireless access Access Point Names (APNs) that are served by a User Equipment (UE) in the wireless relay. The network controller selects an MCS for the UE in the wireless relay based on the amount of the wireless access APNs served by the UE. The network controller directs a wireless base station and the UE in the wireless relay to use the selected MCS. The UE in the wireless relay exchanges user data with the multiple wireless access points that serve other UEs. The UE in the wireless relay exchanges the user data with the wireless base station using the selected MCS. The network controller may comprise a Long Term Evolution (LTE) Mobility Management Entity (MME), and the wireless access points may comprise LTE eNodeBs.