Interference Determination for Aggregated Bandwidth in Wireless Networks
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Solution Overview
Problem
Current communication technologies face challenges in filtering out interference from aggregated discrete spectrum fragments, leading to strong interference and performance issues in terminal devices when accessing high-bandwidth aggregated bandwidths.
Innovation Solution
An interference determining method and apparatus that quantify interference by comparing channel quality information from individual bandwidths and aggregated bandwidths, allowing adaptive adjustment of operating bandwidths to minimize interference, thereby improving device performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If discrete spectrum fragments are aggregated into a high-bandwidth cell, then bandwidth is improved, but interference from other spectrums cannot be filtered out
Solution Approach 1:
The patent segments the aggregated bandwidth into multiple discrete spectrum fragments, each with its own filter. This allows the terminal device to apply filtering operations to each fragment individually, effectively removing interference from other spectrums while maintaining the high bandwidth benefits of aggregation.
Solution Approach 2:
The patent introduces dynamic interference determination and quantization mechanisms that adaptively adjust filtering parameters based on measured interference levels. The network device determines interference based on channel quality information and dynamically configures filtering operations, making the system responsive to changing interference conditions.
2Area of stationary object
If discrete spectrum fragments are aggregated into a high-bandwidth cell, then bandwidth is improved, but interference cannot be quantized
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device measures channel quality information for each spectrum fragment and reports it to the network device. The network device uses this feedback to determine interference levels and quantize interference values, enabling precise measurement and adaptive adjustment of interference mitigation strategies.
Solution Approach 2:
The patent changes the parameter of interference representation from unquantized to quantized by introducing interference determination based on channel quality information ratios. This allows interference to be expressed in measurable, comparable units that can be used for decision-making regarding bandwidth configuration and filtering operations.
3Productivity
If terminal device operates in aggregated bandwidth, then high bandwidth service is obtained, but terminal device may operate in strong interference
Solution Approach 1:
The patent performs preliminary interference determination and quantization before the terminal device operates in the aggregated bandwidth. The network device calculates interference values based on channel quality information and proactively configures filtering parameters, preventing the terminal device from operating in high-interference conditions rather than reacting after interference occurs.
Solution Approach 2:
The patent introduces an intermediary interference determination mechanism between the terminal device and the aggregated bandwidth. The network device acts as an intermediary that assesses interference conditions and mediates the terminal device's access to different bandwidth configurations, selecting optimal operating modes based on quantized interference values.
Data Source
AI summary
This application discloses a method including: A network device receives first channel quality information corresponding to a first bandwidth and second channel quality information corresponding to an aggregated bandwidth from a terminal device; determines interference experienced by the terminal device when the terminal device accesses the aggregated bandwidth based on the first channel quality information and the second channel quality information; and sends bandwidth configuration information to the terminal device based on the interference. The first channel quality information is sent by the terminal device when the terminal device accesses the first bandwidth, and the second channel quality information is sent by the terminal device when the terminal device accesses the aggregated bandwidth. The aggregated bandwidth is obtained by aggregating at least the first bandwidth and a second bandwidth. A spectrum of a third bandwidth is spaced between a spectrum of the first bandwidth and the second bandwidth.