Bandwidth Allocation in Distributed Antenna Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Telecommunication systems face challenges in efficiently allocating bandwidth among communication links, particularly due to variations in transmission modes used by terminal devices, which can lead to overdriving or insufficient signal power at remote units, affecting coverage and power amplifier efficiency.
Innovation Solution
A method and system that identify transmission modes used by terminal devices, assign weights to groups based on these modes, and configure downlink signals with adjusted power to prevent overdriving and ensure sufficient signal power, utilizing a splitter unit and processing engine to modify signals before transmission to remote units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If bandwidth is allocated without considering transmission modes, then allocation simplicity is maintained, but signal power becomes insufficient or excessive at remote units
Solution Approach 1:
The system changes the signal power parameter based on transmission mode identification. Different transmission modes (e.g., TM3, TM4, TM5, TM6) are associated with different power adjustment factors, allowing the base station to dynamically adjust downlink signal power to match the specific transmission mode being used, thereby preventing overdriving or insufficient power at remote units
Solution Approach 2:
The system segments terminal devices into different groups based on their transmission modes. Each group is assigned specific weights that reflect the power characteristics of their transmission mode. This segmentation allows the base station to apply differentiated power allocation strategies to different groups, ensuring each group receives appropriate signal power levels
2Ease of operation
If uniform signal power is used for all terminal devices, then power allocation simplicity is maintained, but power amplifier efficiency decreases
Solution Approach 1:
The system adjusts the signal power parameter dynamically based on the transmission mode of each terminal device group. By associating different power adjustment factors with different transmission modes, the system optimizes power amplifier efficiency for each mode while maintaining a relatively simple overall power allocation framework through weight-based grouping
3Reliability
If transmission mode-specific power adjustment is implemented, then signal power adequacy is improved, but system complexity increases
Solution Approach 1:
The base station performs preliminary identification of transmission modes and pre-calculates appropriate power adjustment factors for each mode before actual signal transmission. This preliminary classification and weight assignment simplifies the real-time signal processing by pre-establishing the relationship between transmission modes and power levels, reducing on-the-fly computational complexity
Solution Approach 2:
The system introduces transmission mode identification and weight assignment as intermediary steps between bandwidth allocation and signal transmission. These intermediaries translate the complex relationship between transmission modes and power requirements into a simplified weight-based allocation mechanism, making the overall system more manageable while maintaining signal power adequacy
Data Source
AI summary
The present disclosure describes devices, systems, and methods for allocating bandwidth among communication links in a telecommunication system. Some aspects can involve identifying multiple transmission modes used to transmit downlink signals via remote units of a telecommunications system to groups of terminal devices. Each group of terminal devices may receive downlink signals using a respective transmission mode. Respective weights can be assigned to the groups of terminal devices based on the transmission modes. The downlink signals, which are provided to each remote unit associate with each group of terminal devices, can be configured using a respective signal power that is associated with a respective weight for the group of terminal devices associated with the respective remote unit.