Wireless Spectral Mask Configuration for Channel Bonding Interference
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Solution Overview
Problem
Conventional spectral masks in wireless communication systems, such as those defined by the 802.11ad standard, fail to account for channel bonding, leading to increased interference and higher deployment costs due to inadequate control over transmission configurations.
Innovation Solution
The method involves storing configuration parameter sets for various spectral masks, including single and bonded channel masks, which define target power levels for different bandwidths, and selecting the appropriate set based on the number of adjacent channels to mitigate interference effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional spectral masks are used without accounting for channel bonding, then the transmission control is simplified, but interference in adjacent frequency bands increases
Solution Approach 1:
The patent implements dynamic spectral mask selection that adapts to the number of bonded channels. The system retrieves different configuration parameter sets from memory based on whether single-channel or bonded-channel operation is detected, allowing the transmission control characteristics to change dynamically according to operating conditions. This resolves the contradiction by making the control system adaptive rather than static.
Solution Approach 2:
The patent changes key transmission parameters including spectral mask configuration, power allocation across channels, and bandwidth definitions based on the bonding configuration. By storing multiple sets of configuration parameters and selecting the appropriate set based on operating mode, the system optimizes interference control for each specific scenario while maintaining manageable complexity through parameterization.
2Object-generated harmful factors
If control parameters are designed to account for varying transmission configurations, then interference control improves, but the cost of deploying transmitters increases
Solution Approach 1:
The patent implements a universal transmitter design that can operate in multiple configurations (single-channel and various bonded-channel modes) using a single device architecture. The system achieves multi-functionality through software-based spectral mask selection and parameter configuration rather than requiring hardware variants for different deployment scenarios. This reduces deployment costs while maintaining effective interference control across all operating modes.
Solution Approach 2:
The patent performs preliminary configuration by storing multiple sets of spectral mask parameters in memory before actual transmission begins. The system pre-calculates and stores optimal power allocation and spectral mask configurations for different bonding scenarios, allowing rapid adaptation to varying transmission configurations without real-time complex calculations. This preliminary preparation enables cost-effective deployment with simplified transmitter hardware.
3Device complexity
If single channel spectral mask is applied to bonded channels, then device complexity is reduced, but manufacturing precision of spectral compliance deteriorates
Solution Approach 1:
The patent segments the spectral mask configuration into distinct parameter sets for single-channel and bonded-channel operations. Each segment contains specifically optimized parameters for its intended use case, including power allocation, bandwidth definitions, and spectral mask shapes. This segmentation allows precise compliance for each scenario while keeping individual configuration sets relatively simple.
Solution Approach 2:
The patent changes critical spectral parameters including power spectral density distribution, bandwidth allocations, and transition band definitions based on the bonding configuration. By retrieving pre-optimized parameter sets that match the actual operating mode, the system ensures precise spectral mask compliance for each scenario without requiring complex real-time calculations or overly complicated device architecture.
Data Source
AI summary
A wireless communication assembly stores configuration parameter sets for predefined spectral masks, including: a single channel mask for a base channel bandwidth, and defining target power levels for each of a base in-band bandwidth, base transition bandwidths, and a base floor bandwidth; and a bonded channel mask for a multiple of the base channel bandwidth, and defining target power levels for each of a bonded in-band bandwidth equivalent to the sum of the base in-band bandwidth and the base channel bandwidth, and bonded transition and floor bandwidths that are multiples of the base transition and floor bandwidths. A radio controller selects predefined channels each having the base channel bandwidth, for transmitting data to a recipient station; retrieves selected one of the configuration parameter sets based on the number of selected channels; and applies the selected configuration parameter set to data for transmission to the recipient station.