Secondary mmWave Channel Assignment for WLAN Coexistence
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Solution Overview
Problem
Wireless local area networks (WLANs) face challenges in efficiently managing bandwidth and coexistence with legacy devices, particularly due to differences in communication protocols and hardware limitations, which affect response times and overall network performance.
Innovation Solution
The proposed solution involves a radio architecture that integrates WLAN and Bluetooth functionalities within a single radio architecture, utilizing a front-end module, radio IC circuitry, and baseband processing circuitry to enable efficient coexistence and operation across various frequency spectrums, including 2.4 GHz, 5 GHz, and 60 GHz, using advanced signal processing and channel assignment methods to optimize channel utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple devices share the same wireless resources, then network coverage is extended, but bandwidth availability and response times deteriorate
Solution Approach 1:
The patent segments the wireless medium into multiple channels (primary channel and secondary channels) to allow simultaneous transmissions. By dividing the shared resource into distinct channel segments, multiple devices can transmit data concurrently without interfering with each other, thus maintaining bandwidth availability while extending network coverage.
Solution Approach 2:
The patent introduces a new dimension for resource allocation by implementing channel bonding that combines multiple 2.16 GHz channels to form wider channels (4.32 GHz, 6.48 GHz, 8.64 GHz). This dimensional expansion of frequency resources allows the network to serve more devices simultaneously while maintaining adequate bandwidth for each device.
2Productivity
If newer protocols are implemented, then communication efficiency is improved, but compatibility with legacy devices deteriorates
Solution Approach 1:
The patent implements a universal channel assignment mechanism that works across different protocol versions. The primary channel and secondary channel assignment framework, along with the channel bonding capability, is designed to be protocol-agnostic, allowing both newer high-efficiency devices and legacy devices to coexist and communicate effectively on the same wireless medium.
Solution Approach 2:
The patent introduces management frames and signaling mechanisms that act as intermediaries between newer and legacy devices. These intermediary protocols enable coordination of channel usage, allowing high-efficiency devices to utilize bonded channels while legacy devices operate on individual channels, thus maintaining compatibility while enabling advanced functionality.
3Productivity
If channel bonding is implemented, then bandwidth is increased, but device complexity and protocol overhead are increased
Solution Approach 1:
The patent implements channel bonding by changing the channel width parameter, allowing devices to bond multiple 2.16 GHz channels into wider channels (4.32 GHz, 6.48 GHz, 8.64 GHz). This parameter-based approach enables flexible bandwidth adjustment without requiring fundamental changes to the device architecture, thus increasing bandwidth while controlling complexity through standardized parameter modifications.
Data Source
AI summary
Apparatuses, methods, and computer readable media for assignment of secondary millimeter wave channels. An apparatus of a station (STA) is disclosed that includes processing circuitry configured to decode a basic service set (BSS) operating channels field and a primary channel field from an access point (AP) or personal basic service set control point (PCP), wherein the BSS operating channels field is a bitmap that indicates which 2.16 GHz channels of a plurality of 2.16 GHz channels are permitted to be used for transmissions in the BSS, and wherein the primary channel field indicates a 2.16 GHz channel of the plurality of 2.16 GHz channels that is a primary channel of the BSS. The processing circuitry may be further configured to determine the primary channel, a secondary channel, a secondary1 channel, and a secondary2 channel based on the BSS operating channels field and the primary channel field.