Dynamic AGC Control in LTE Repeaters for Data Throughput
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Solution Overview
Problem
Current wireless repeater systems using Automatic Gain Control (AGC) face challenges in dynamically managing wireless resources and data throughput for various application types, leading to suboptimal performance for data streaming applications.
Innovation Solution
The Long Term Evolution (LTE) communication system dynamically controls AGC in repeaters by identifying individual User Equipment (UE) applications and adjusting the Variable Bit Rate (VBR)-to-Guaranteed Bit Rate (GBR) application ratio, disabling AGC when the ratio exceeds a threshold to optimize data throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Automatic Gain Control (AGC) is used in repeater systems to maintain constant signal amplitude, then signal quality for voice applications is improved, but data throughput for streaming applications deteriorates
Solution Approach 1:
The patent implements dynamic AGC control by transitioning from constant gain adjustment to time-varying gain control. The repeater system continuously monitors application types and adjusts AGC parameters dynamically, enabling optimal performance for different traffic conditions. This resolves the contradiction by making the system adaptive rather than static.
Solution Approach 2:
The patent changes the operational parameters of AGC based on application type detection. When voice applications are detected, AGC operates in traditional mode for signal quality. When data streaming applications are detected, AGC parameters are adjusted or disabled to maximize throughput. This parameter adaptation resolves the contradiction between signal quality and data throughput.
2Reliability
If constant AGC is applied to all applications, then voice application quality is enhanced, but data streaming performance is hindered
Solution Approach 1:
The patent applies different AGC control strategies to different application types. Voice applications receive traditional AGC treatment for quality assurance, while data applications receive modified or disabled AGC for throughput optimization. This localized treatment resolves the contradiction by providing application-specific optimization rather than uniform control.
Solution Approach 2:
The system changes AGC operational parameters based on detected application types. The control mechanism identifies whether traffic is voice or data-oriented and adjusts AGC parameters accordingly, enabling the system to adapt to different service requirements and resolve the contradiction between quality enhancement and performance hindrance.
3Reliability
If AGC is continuously enabled in repeater systems, then signal amplitude control is maintained, but wireless resource management becomes difficult
Solution Approach 1:
The patent introduces dynamic control mechanisms that adjust AGC operation based on real-time network conditions and application types. Rather than continuous enablement, the system dynamically determines when AGC should be active or adjusted, simplifying resource management while maintaining necessary signal control. This resolves the contradiction by replacing static continuous control with adaptive conditional control.
Data Source
AI summary
A Long Term Evolution (LTE) communication system dynamically controls Automatic Gain Control (AGC) in a repeater system serving individual User Equipment (UE). The LTE communication system identifies individual UEs and an application type used by the individual UEs being served by a repeater section in the repeater system. The LTE communication system determines a Variable Bit Rate (VBR)-to-Guaranteed Bit Rate (GBR) application ratio based on a number of the identified individual UEs using a VBR application and a number of the identified individual UEs using a GBR application. The LTE communication system compares the VBR-to-GBR application ratio to a VBR application threshold and determines that the VBR-to-GBR application ratio exceeds the VBR application threshold. In response to determining that the VBR-to-GBR application ratio exceeds the VBR application threshold, the LTE communication system instructs the repeater section in the repeater system to disable the AGC.