Obviousness

To analyze the obviousness of US patent 12190198 under 35 U.S.C. § 103, we will identify combinations of prior art references that would render the independent claims obvious to a person having ordinary skill in the art (PHOSITA). The primary focus will be on Independent Claim 1, as its elements typically underpin dependent claims.

The effective filing date for obviousness analysis is the priority date of US12190198, which is October 30, 2013. Therefore, all prior art references must have a publication or priority date before this date.

Analysis of Independent Claim 1

Independent Claim 1 describes a method for improving the operation of circuitry in a wireless networking device, involving a processing interface that interacts with applications and dynamically allocates bandwidth from multiple wireless transceivers operating in different frequency bands, using virtual MAC and resource monitoring interfaces.

The key elements of Claim 1 can be broken down as follows:

• Preamble: Method for improving circuitry in a wireless networking device.
• A. Application Interaction: Providing a processing interface configured to interact with an application having a wireless bandwidth requirement.
• B. Hardware Interconnection: Connecting first and second actual MAC interfaces to the processing interface, and first and second actual PHY interfaces to their respective MAC interfaces.
• C. Multi-Transceiver Configuration: Associating first and second wireless transceivers with the actual PHY interfaces, where these transceivers:
  • Are suitable for WLAN.
  • Have first and second bandwidth availabilities.
  • Emit radio waves in first and second different bands of frequencies.
• D. Processing Interface Components: The processing interface comprises:
  • At least one virtual MAC interface.
  • At least one resource monitoring interface that provides information regarding bandwidth availabilities to the virtual MAC interface during operation.
• E. Virtual MAC Functionality (Transparent Allocation): The virtual MAC interface is configured to, transparently to layers above the processing interface:
  • (i) Request or create a first association between a recipient and the first actual MAC/PHY interfaces and a second association between the recipient and the second actual MAC/PHY interfaces.
  • (ii) Use the information from the resource monitoring interface to make allocation decisions with respect to first and second bandwidth availabilities to at least partially satisfy the bandwidth requirement of the data stream.

Prior Art References for Obviousness Analysis

We will select the following prior art references from the "Citations" section, all published before the October 30, 2013 priority date of US12190198:

1. US20090034460A1 (Moratt): "Dynamic bandwidth allocation for multiple virtual MACs" (Published: February 5, 2009)
   • This reference is highly relevant for the concepts of virtual MAC layers and dynamic bandwidth allocation.
2. US8565178B2 (Samsung): "Method and apparatus for wireless communication on multiple spectrum bands" (Published: October 22, 2013)
   • This reference directly addresses the use of multiple distinct frequency bands in wireless communication.
3. US20090180451A1 (Comsys): "Apparatus for and method of coordinating transmission and reception opportunities in a communications device incorporating multiple radios" (Published: July 16, 2009)
   • This reference is relevant for coordinating multiple radios and managing transmission/reception, implying resource monitoring and control.

Obviousness Argument: Combination of Moratt, Samsung, and Comsys

A PHOSITA would have been motivated to combine the teachings of Moratt, Samsung, and Comsys to arrive at the invention of Claim 1 of US12190198, particularly in the context of addressing the "insatiable demand for more bandwidth over wireless networks" as noted in the background of US12190198.

Reasoning for Combination:

• Preamble and Element A (Application Interaction): Moratt teaches "dynamic bandwidth allocation for multiple virtual MACs". A PHOSITA would understand that such a system inherently involves a processing interface (e.g., the virtual MAC layer and associated logic) that interacts with applications to fulfill their bandwidth requirements. This directly addresses the preamble and element A.
• Element B (Hardware Interconnection): Moratt's disclosure of managing "multiple virtual MACs" to perform "dynamic bandwidth allocation" for wireless communication implies the underlying presence and interconnection of actual MAC and PHY interfaces, each controlling physical transceivers. This is a standard architectural understanding in wireless networking.
• Element C (Multi-Transceiver Configuration with Different Frequency Bands):
  • Moratt's system, focused on dynamic bandwidth allocation, would naturally be implemented with wireless transceivers suitable for WLANs, as WLANs are a common domain for bandwidth management.
  • A PHOSITA, seeking to further enhance the bandwidth provided by Moratt's system for "bandwidth intensive data streams" (as described in US12190198's background), would look to increase the available physical resources. Samsung provides a clear solution by teaching "wireless communication on multiple spectrum bands". Combining Moratt's virtualized allocation with Samsung's multi-band capability would lead directly to configuring first and second transceivers to emit radio waves in "first and second different bands of frequencies" to maximize aggregate bandwidth. This fulfills element C (i), (ii), and (iii).
• Element D (Processing Interface Components: Virtual MAC and Resource Monitoring Interface):
  • The "virtual MAC interface" is explicitly taught by Moratt.
  • Comsys teaches an "apparatus for and method of coordinating transmission and reception opportunities in a communications device incorporating multiple radios". To "coordinate" and manage "opportunities" effectively, a system must necessarily monitor the status and availability of these multiple radios (transceivers). A PHOSITA would readily integrate such a resource monitoring function (as an "at least one resource monitoring interface") into Moratt's virtual MAC architecture to provide the virtual MAC with the necessary real-time "information regarding the first and second bandwidth availabilities" to make intelligent allocation decisions. This fulfills element D.
• Element E (Virtual MAC Functionality - Transparent Allocation):
  • Transparency: A virtual MAC layer, as taught by Moratt, is designed to abstract the complexity of underlying physical resources from higher layers, making its operation "transparent to any layer... above the processing interface". This is an inherent characteristic of virtualization in networking.
  • (i) Request or create associations: Moratt's "dynamic bandwidth allocation for multiple virtual MACs" managing multiple physical resources for a given communication implies logically binding these resources to a "recipient". Comsys further reinforces this by teaching "coordinating transmission and reception opportunities...incorporating multiple radios", which necessitates establishing connections or "associations" between the recipient and the respective physical interfaces to utilize the combined bandwidth.
  • (ii) Use monitoring information for allocation decisions: This is the core functionality of Moratt's "dynamic bandwidth allocation," which would logically rely on current resource availability. The incorporation of Comsys's resource monitoring provides the explicit mechanism for the virtual MAC to "use the information provided to it by the resource monitoring interface to make allocation decisions" for the multiple bandwidth availabilities (including those across different frequency bands as taught by Samsung) to "satisfy the bandwidth requirement of the data stream".

Motivation to Combine:

A PHOSITA, aiming to build a more efficient and higher-bandwidth wireless networking device, would recognize the synergistic benefits of combining these prior art teachings:

1. Moratt provides the foundational architectural concept of using a virtual MAC layer for flexible and dynamic management of network resources, addressing the need for adaptable bandwidth allocation.
2. However, Moratt might not explicitly teach leveraging different frequency bands. Samsung directly addresses this by demonstrating how to achieve higher capacity by utilizing "multiple spectrum bands". A PHOSITA would be motivated to integrate this multi-band capability into Moratt's virtual MAC framework to significantly increase the total available bandwidth for "bandwidth intensive data streams."
3. To ensure efficient and optimal "dynamic bandwidth allocation" across these multiple, diverse (different frequency band) physical resources, as proposed by the combination of Moratt and Samsung, a robust feedback mechanism for resource status is crucial. Comsys provides the teaching of "coordinating transmission and reception opportunities in a communications device incorporating multiple radios", which inherently requires "resource monitoring" and feedback to enable intelligent management. Therefore, a PHOSITA would be motivated to integrate Comsys's resource monitoring capabilities with Moratt's virtual MAC to make informed allocation decisions, especially when managing resources from multiple transceivers operating on different frequency bands.

The combination of Moratt, Samsung, and Comsys would thus render Claim 1 of US12190198 obvious because it provides all the essential elements and functionality described in the claim, with clear motivations for a PHOSITA to combine these known elements to solve the problem of efficient and high-bandwidth wireless data stream processing.