Dynamic Bandwidth Switching for Reliable mmWave Communication
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing channel bandwidth to achieve ultra-high reliability and dynamic subband operation, particularly in mmWave frequency bands, leading to suboptimal data transmission rates and reliability.
Innovation Solution
Implementing a dynamic bandwidth mechanism that allows for flexible channel bonding and channel switching in mmWave frequency bands, enabling devices to adapt bandwidth based on real-time conditions and communication needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed channel bandwidth is used in wireless communication systems, then device complexity is reduced and ease of operation is improved, but data transmission rates and reliability are limited and cannot adapt to dynamic conditions
Solution Approach 1:
The patent implements dynamic subband operation (DSO) that allows the channel bandwidth to be dynamically adjusted between 80 MHz and 320 MHz based on real-time communication conditions. The apparatus switches between different bandwidth configurations (e.g., 80 MHz, 160 MHz, 320 MHz) to optimize data transmission rates and reliability while managing device complexity through automated bandwidth selection algorithms.
Solution Approach 2:
The system changes the bandwidth parameter dynamically by configuring different channel bonding scenarios. The apparatus can switch between single 80 MHz channel, two 80 MHz channels bonded, four 80 MHz channels bonded to achieve 320 MHz bandwidth, thereby adapting to varying communication requirements without requiring complex manual configuration.
2Adaptability or versatility
If dynamic bandwidth adjustment is implemented, then data transmission rates and adaptability are improved, but device complexity and difficulty of operation increase
Solution Approach 1:
The patent enables the wireless communication apparatus to dynamically adjust its operating bandwidth from 80 MHz to 320 MHz based on channel conditions, traffic requirements, and interference levels. This dynamic adaptation allows the system to optimize performance for different scenarios while the underlying complexity is managed through automated control mechanisms.
Solution Approach 2:
The system segments the wide 320 MHz bandwidth into multiple 80 MHz subbands that can be independently configured and bonded. This segmentation allows flexible combination of subbands to achieve different total bandwidths (80 MHz, 160 MHz, 320 MHz), providing adaptability while simplifying management through modular subband units.
3Productivity
If channel bonding is used to increase bandwidth, then data transmission rates are improved, but susceptibility to interference and reliability deteriorate
Solution Approach 1:
The patent divides the total bandwidth into multiple independent 80 MHz channels that can be selectively bonded. When interference is detected on one channel, the system can maintain communication on other channels or switch to a narrower bandwidth configuration, thereby maintaining reliability while still achieving high data rates through channel bonding when conditions permit.
Solution Approach 2:
The system dynamically changes the operational bandwidth parameter based on channel quality assessments. When channels exhibit high interference, the apparatus reduces bandwidth to a single 80 MHz channel or switches to alternative channels, thereby maintaining communication reliability. When channels are clean, it bonds multiple channels to maximize data transmission rates.
Data Source
AI summary
For example, an Access Point (AP) may be configured to set a frequency-resource field in a Dynamic Bandwidth Expansion (DBE) announcement frame, the DBE announcement frame to announce a dynamic Basic Service Set (BSS) Bandwidth (BW) change from a first dynamic BSS BW to a second dynamic BSS BW different from the first dynamic BSS BW. For example, the frequency-resource field may be configured to indicate an announced frequency resource within the second dynamic BSS BW for communication between the AP and at least one non-AP station (STA). For example, the AP may be configured to transmit the DBE announcement frame including the frequency-resource field. For example, a non-AP STA may be configured to process the frequency-resource field in the DBE announcement frame, and to communicate with the AP based on the announced frequency resource within the second dynamic BSS BW.