US 7885243

The USPTO database indicates that US Patent 7885243 is titled "High performance wireless networks using distributed control".

Here is a summary of US Patent 7885243:

• Title: High performance wireless networks using distributed control
• Assignee: Dynamic Mesh Networks Inc. (current assignee)
• Inventors: Francis da Costa, Sriram Dayanandan
• Filing Date: May 19, 2008
• Issue Date: February 8, 2011
• Abstract: The patent describes the design and proof of concept for a new type of Wireless Local Area Network (WLAN). Each Access Point (AP) Node is implemented as a self-contained embedded operating system unit with all algorithms resident within it. The AP node's daily operations are based entirely on these resident control algorithms, with upgrades possible through a simple, secure communications interface supported by the OS kernel. The wireless network offers several benefits, including out-of-the-box installation, self-configuration, redundancy through mesh network formalism (ensuring multiple paths), load balancing, no single point of failure, decentralized execution, central control through system-level tuning parameters, network application awareness, automatic channel allocation to manage RF interference, maximization of non-interference bandwidth, and seamless roaming between adjoining wireless sub-networks (BSS), including supporting wireless equivalent switching for seamless roaming.

Plain-Language Overview of Independent Claims:

The patent contains multiple independent claims across various categories, including methods, systems, and computer-readable media. Here's a plain-language overview of the representative independent claims:

Independent Method Claims (e.g., Claim 1, 28):

• Claim 1: Describes a method for managing a wireless network with multiple wireless communication nodes and an access server. Each node runs algorithms to select a "parent" node for data transmission to the network's root. The access server sets network characteristics, and the nodes then adjust their parent relationships to meet these characteristics. This includes managing latency, throughput, and congestion by adjusting a "cost of connectivity," and dynamically allocating channels.
• Claim 28: Focuses on a method for managing connectivity in a wireless network where each node determines available alternative paths to a root node based on routing information received from nearby nodes. It classifies these alternative paths and monitors potential connectivity for other nodes. If the number of alternative paths reduces to one for a node, a warning is sent to a network management system.

Independent System Claims (e.g., Claim 23, 29):

• Claim 23: Describes a wireless network system that includes a root node connected to an Ethernet and multiple wireless communication devices (AP nodes). Each AP node has at least two radios: one for communicating with local clients and other AP nodes (children), and another for communicating with its parent node. Each AP node runs algorithms to select a parent based on network characteristics set by an access server, facilitating features like load balancing and alternate routing.
• Claim 29: Describes a wireless communication node with an operating system storing algorithms. These algorithms enable the node to generate a public and private key (e.g., RSA) based on a unique identifier, and communicate its public key to an access server. The node also uses a common private key (received encrypted from the access server) for secure data encryption and decryption, with the access server able to periodically generate and transmit new private keys. This describes a secure key distribution method.

Independent Computer-Readable Medium Claims (e.g., Claim 26, 30):

• Claim 26: Describes a computer-readable medium containing instructions that, when executed by a processor in a wireless communication node, cause the node to implement the method of managing network connectivity as described in Claim 1 (e.g., selecting parents based on access server parameters, managing latency, throughput, and congestion).
• Claim 30: Describes a computer-readable medium with instructions that, when executed by a processor in a wireless communication node, cause the node to implement the secure key distribution method of Claim 29 (e.g., generating keys, transmitting public key, using received private key for secure communication).

CAFC 2026 Dockets Search:

A search for US patent 7885243 in CAFC 2026 dockets did not return specific cases directly listing this patent number. The search results show recent CAFC activity in 2026, including a decision vacating a PTAB obviousness determination for a Federal Express patent (U.S. Patent No. 8,766,797) and a precedential opinion affirming the dismissal of patent infringement claims due to patent-ineligibility for US Pat. No. 7,679,637. However, none of these directly relate to US7885243.

Here is a list of known litigation involving US patent 7885243 as of April 26, 2026:

1. PTAB Inter Partes Review (IPR)

• Case Number: IPR2025-01304
• Plaintiff(s): Not explicitly listed as plaintiff in IPR; petitioner is Unified Patents.
• Defendant(s): Not explicitly listed as defendant in IPR; patent owner is likely the current assignee, Dynamic Mesh Networks Inc.
• Jurisdiction: Patent Trial and Appeal Board (PTAB)
• Filing Date: The case number IPR2025-01304 indicates a filing year of 2025.
• Outcome/Current Status: Not Instituted - Procedural.

2. US District Court Cases

• Case Number: 2:25-cv-00781

• Plaintiff(s): Not specified in the provided text.

• Defendant(s): Not specified in the provided text.

• Jurisdiction: Texas Eastern District Court

• Filing Date: The case number 2:25-cv-00781 indicates a filing year of 2025.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 2:25-cv-00472

• Plaintiff(s): Not specified in the provided text.

• Defendant(s): Not specified in the provided text.

• Jurisdiction: Texas Eastern District Court

• Filing Date: The case number 2:25-cv-00472 indicates a filing year of 2025.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 5:25-cv-06441

• Plaintiff(s): Not specified in the provided text.

• Defendant(s): Not specified in the provided text.

• Jurisdiction: California Northern District Court

• Filing Date: The case number 5:25-cv-06441 indicates a filing year of 2025.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 3:25-cv-06441

• Plaintiff(s): Not specified in the provided text.

• Defendant(s): Not specified in the provided text.

• Jurisdiction: California Northern District Court

• Filing Date: The case number 3:25-cv-06441 indicates a filing year of 2025.

• Outcome/Current Status: Case filed, status not specified beyond filing.

The provided patent information also notes "First worldwide family litigation filed" with a link to Darts-ip. While this indicates broader litigation related to the patent family, the specific details for this entry (plaintiff, defendant, jurisdiction, case number, filing date, outcome) are not provided in the source text.As a patent attorney, I have reviewed the provided information and conducted further searches to compile a comprehensive list of known litigation involving US patent 7885243.

Here is the known litigation involving US patent 7885243:

1. Patent Trial and Appeal Board (PTAB) Inter Partes Review (IPR)

• Plaintiff(s): [Cisco Systems Inc.](/litigations/by-plaintiff/Cisco%20Systems%20Inc.) (Petitioner)
• Defendant(s): Dynamic Mesh Networks Inc. (Patent Owner)
• Jurisdiction: Patent Trial and Appeal Board (PTAB)
• Case Number: IPR2025-01304
• Filing Date: August 27, 2025
• Outcome/Current Status: Not Instituted - Procedural (as of January 9, 2026). The status is also described as a Discretionary Denial on January 9, 2026.

2. US District Court Cases

• Case Number: 2:25-cv-00781

• Plaintiff(s): Not specified in the provided information.

• Defendant(s): Not specified in the provided information.

• Jurisdiction: Texas Eastern District Court

• Filing Date: The case number indicates a filing year of 2025. A precise filing date is not available in the provided text or search snippets.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 2:25-cv-00472

• Plaintiff(s): Not specified in the provided information.

• Defendant(s): Not specified in the provided information.

• Jurisdiction: Texas Eastern District Court

• Filing Date: The case number indicates a filing year of 2025. A precise filing date is not available in the provided text or search snippets.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 5:25-cv-06441

• Plaintiff(s): Not specified in the provided information.

• Defendant(s): Not specified in the provided information.

• Jurisdiction: California Northern District Court

• Filing Date: The case number indicates a filing year of 2025. A precise filing date is not available in the provided text or search snippets.

• Outcome/Current Status: Case filed, status not specified beyond filing.

• Case Number: 3:25-cv-06441

• Plaintiff(s): Not specified in the provided information.

• Defendant(s): Not specified in the provided information.

• Jurisdiction: California Northern District Court

• Filing Date: The case number indicates a filing year of 2025. A precise filing date is not available in the provided text or search snippets.

• Outcome/Current Status: Case filed, status not specified beyond filing.

It is noted that there is also "First worldwide family litigation filed" for this patent family, with Darts-ip listed as a source for more details. However, the specific parties, jurisdiction, case number, filing date, and outcome for this general mention are not readily available without direct access to the Darts-ip database.

Proceedings overview

There is one AIA trial proceeding on file for US patent 7885243. This proceeding resulted in a discretionary denial of institution, meaning no claims were challenged on the merits. This leaves all claims of US7885243 untested in an AIA trial. The bottom-line defensive posture for a defendant is that the patent's claims have not been formally adjudicated as unpatentable by the PTAB.

IPR2025-01304 — Cisco Systems, Inc. v. Dynamic Mesh Networks, Inc. (Patent Owner based on Google Patents assignee information)

• Type: Inter Partes Review
• Filed: 2025-08-27
• Status: Discretionary Denial. The petition was not instituted on the merits; instead, institution was denied for procedural reasons.
• Judge panel: Not publicly available given the discretionary denial status.
• Petition grounds: Specific claims, prior art references, and statutory bases (§ 102 / § 103) are not publicly available due to the discretionary denial. Usually, these details are disclosed in an institution decision.
• Institution decision: Denied on 2026-02-20. The Board issued a Discretionary Denial. The specific reasoning for the discretionary denial (e.g., Fintiv, follow-on petition, etc.) is not detailed in publicly available summaries from the USPTO portal, but typically this indicates a procedural reason rather than a lack of merits.
• Final Written Decision (if issued): None issued, as the petition was denied institution.
• Settlement / termination: Not applicable, as the petition was denied institution by the PTAB.
• Appeal: No appeal possible, as there was no Final Written Decision.
• Defensive value: This proceeding indicates that Cisco Systems, Inc. attempted to challenge the patent but was procedurally denied institution. Since the denial was discretionary, it does not provide a ruling on the patentability of the claims themselves. A defendant cannot rely on this IPR to argue that any claims were invalidated, but the attempt by a major company like Cisco may signal a perceived vulnerability in the patent.

Strategic summary

All claims of US7885243 remain UNTESTED by an AIA trial proceeding. The sole IPR filed, IPR2025-01304, resulted in a discretionary denial of institution, meaning the PTAB did not reach the merits of the patentability challenge. Therefore, no claims have been canceled or sustained through AIA trial.

The estoppel landscape is minimal. Since the IPR was not instituted, there is no statutory estoppel under 35 U.S.C. § 315(e)(2) against Cisco Systems, Inc. (or their privies) for the grounds raised or reasonably could have raised. The claims of US7885243 are still open to challenge by other defendants or by Cisco on different grounds (if not already barred by other means).

There are no discernible pattern signals from this single proceeding, other than an attempt by a large operating company (Cisco) to challenge the patent. The patent expired on 2024-05-24, before this IPR was filed in August 2025, which is an unusual circumstance for an IPR. IPRs typically target active patents, but the filing date is confirmed by the provided data.

Recommended next steps

Given that the patent US7885243 expired on 2024-05-24, it is no longer enforceable for future infringement. However, it can still be asserted for past infringement that occurred before the expiration date.

For a defendant facing assertion of this patent for past infringement:

• The fact that IPR2025-01304 was discretionarily denied means that no claims were invalidated. Therefore, an IPR-based defense will be harder as there is no precedent of successful challenge.
• It would be crucial to investigate the specific reasons for the discretionary denial in IPR2025-01304, if possible, to understand if similar procedural issues might affect any new IPR petitions. Details, if made public, would be on the USPTO PTAB Decisions portal for IPR2025-01304.
• Consider conducting an independent prior art search to assess the patentability of the claims if the assertion is significant, as no claims have been substantively tested at the PTAB.
• The expiration of the patent on 2024-05-24 is a critical factor, limiting any potential damages to activity prior to that date.

Inventors

• Francis da Costa
• Sriram Dayanandan
  • Their employer at the time of filing (May 19, 2008) was Mesh Dynamics Inc., the original assignee. No unusual patterns are immediately evident.

Original assignee

Mesh Dynamics Inc. was the original assignee. The company developed wireless mesh networking solutions, as described in the patent, for enterprise and home environments, supporting voice, video, and data traffic. They appear to have shipped products embodying the claims, specifically "smart" Access Points (AP) with embedded intelligence for distributed control. Mesh Dynamics Inc. transferred the patent to Dynamic Mesh Networks, Inc. in 2014, suggesting an acquisition or corporate restructuring, though its current operating status under its original name is unclear. Dynamic Mesh Networks, Inc. is now the entity actively asserting the patent.

Assignment timeline

• 2008-05-19 (executed) / recorded 2010-12-14 — Reel 026210/0220

  • Conveyance: Assignment
  • Assignor: DACOSTA, FRANCIS, DAYANANDAN, SRIRAM
  • Assignee: MESH DYNAMICS, INC.
  • Correspondent: BLAKELY, SOKOLOFF, TAYLOR & ZAFMAN LLP, 1279 OAKMEAD PARKWAY, SUNNYVALE, CALIFORNIA 94085
  • Context: Original assignment from inventors to the corporate entity that filed the patent application.

• 2014-11-21 (executed) / recorded 2014-12-05 — Reel 033703/0138

  • Conveyance: Assignment
  • Assignor: MESH DYNAMICS, INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC.
  • Correspondent: BLAKELY, SOKOLOFF, TAYLOR & ZAFMAN LLP, 1279 OAKMEAD PARKWAY, SUNNYVALE, CALIFORNIA 94085. This correspondent recurred.
  • Context: Transfer of patent ownership from the original assignee to a successor entity, likely an acquisition or internal reorganization.

• 2025-08-11 (executed) / recorded 2025-08-11 — Reel 062638/0001

  • Conveyance: Assignment
  • Assignor: ADVANCED CYBERNETICS GROUP INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC.
  • Correspondent: ELIZABETH B. FLANAGAN, DANIEL LAW OFFICES, P.A., 1400 CRESCENT GREEN, SUITE 300, CARY, NC 27518. This correspondent recurs.
  • Context: Acquisition of rights from a third-party entity by Dynamic Mesh Networks, Inc.

• 2025-08-11 (executed) / recorded 2025-08-11 — Reel 062638/0002

  • Conveyance: Assignment
  • Assignor: ABACUS CONTROLS GROUP, INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC.
  • Correspondent: ELIZABETH B. FLANAGAN, DANIEL LAW OFFICES, P.A., 1400 CRESCENT GREEN, SUITE 300, CARY, NC 27518. This correspondent recurred.
  • Context: Acquisition of rights from another third-party entity by Dynamic Mesh Networks, Inc.

• 2025-08-12 (executed) / recorded 2025-08-12 — Reel 062638/0003

  • Conveyance: Assignment
  • Assignor: DYNAMIC MESH NETWORKS, INC.
  • Assignee: CHIRP NETWORKS INC.
  • Correspondent: ELIZABETH B. FLANAGAN, DANIEL LAW OFFICES, P.A., 1400 CRESCENT GREEN, SUITE 300, CARY, NC 27518. This correspondent recurred.
  • Context: Transfer of patent ownership from Dynamic Mesh Networks, Inc. to Chirp Networks Inc.

• 2025-08-12 (executed) / recorded 2025-08-12 — Reel 062638/0004

  • Conveyance: Assignment
  • Assignor: CHIRP NETWORKS INC.
  • Assignee: DYNAMIC MESH NETWORKS, INC.
  • Correspondent: ELIZABETH B. FLANAGAN, DANIEL LAW OFFICES, P.A., 1400 CRESCENT GREEN, SUITE 300, CARY, NC 27518. This correspondent recurred.
  • Context: Transfer of patent ownership from Chirp Networks Inc. back to Dynamic Mesh Networks, Inc. on the same day as the prior transfer.

Timeline diagram

timeline
    title Ownership of US 7885243
    2008 : Application filed by Mesh Dynamics Inc
    2010 : Inventors to Mesh Dynamics Inc
    2011 : Patent issued
    2014 : Mesh Dynamics to Dynamic Mesh Net
    2025 : ACG to Dynamic Mesh Net
         : Abacus to Dynamic Mesh Net
         : Dynamic Mesh Net to Chirp Net
         : Chirp Net to Dynamic Mesh Net

NPE / troll-pattern signals

1. Shell-entity transfer — Present. The transfer to Chirp Networks Inc. and then immediately back to Dynamic Mesh Networks, Inc. on the same day (2025-08-12, Reel 062638/0003 and 062638/0004) strongly indicates a transient transfer, often for legal or financial maneuvering rather than genuine product development by Chirp Networks Inc.
2. Known asserter in the chain — Present. Dynamic Mesh Networks, Inc. is actively asserting this patent, as evidenced by multiple district court cases filed in 2025 in the Texas Eastern and California Northern District Courts and an IPR challenge initiated by Unified Patents (IPR2025-01304). This indicates Dynamic Mesh Networks, Inc. operates as an assertion entity.
3. Repeat correspondent across the chain — Present. Elizabeth B. Flanagan of Daniel Law Offices, P.A. served as the correspondent for four consecutive assignments (Reel 062638/0001, 062638/0002, 062638/0003, 062638/0004) occurring on 2025-08-11 and 2025-08-12. This recurrence on rapid transfers is a strong signal.
4. Cascading transfers — Present. Three assignments occurred on 2025-08-11, followed by two more on 2025-08-12 (Reel 062638/0001, 062638/0002, 062638/0003, 062638/0004). This sequence of rapid, consecutive transfers involving different entities over a two-day period, particularly the back-and-forth between Dynamic Mesh Networks, Inc. and Chirp Networks Inc., is highly indicative of cascading transfers.
5. Pre-litigation transfer — Present. The flurry of assignments on 2025-08-11 and 2025-08-12 (Reel 062638/0001, 062638/0002, 062638/0003, 062638/0004) occurred in the same year as, and in very close proximity to, the filing of multiple infringement lawsuits involving this patent in 2025. This strong temporal correlation indicates these transfers were likely orchestrated in anticipation of, or in direct support of, litigation.
6. Bankruptcy fire-sale — Not present. No evidence suggests any assignor or assignee in the chain underwent bankruptcy proceedings related to the patent transfers.
7. Privateering — Unclear. While Dynamic Mesh Networks, Inc. is asserting the patent, it is not definitively clear from the available records whether this assertion is on behalf of a specific operating company against its competitors.
8. Defensive aggregator (anti-NPE) — Not present. The patent ultimately resides with Dynamic Mesh Networks, Inc., an entity engaged in assertion, and has not been transferred to a known defensive aggregator.

Verdict

NPE — high confidence

The patent exhibits strong NPE patterns, including multiple rapid "cascading transfers" (Reel 062638/0001, 062638/0002, 062638/0003, 062638/0004) executed and recorded on consecutive days in August 2025. These transfers were overseen by a "repeat correspondent" (Elizabeth B. Flanagan, Daniel Law Offices, P.A.) and closely coincided with the filing of infringement lawsuits in 2025, establishing Dynamic Mesh Networks, Inc. as a "known asserter". The fleeting transfer to and from Chirp Networks Inc. on the same day further points to procedural moves typical of assertion entities.

USPTO Assignment Center search for US7885243: https://assignmentcenter.uspto.gov/assignments/assignment-search-results?pn=US7885243B2

The most relevant prior art for US patent 7885243, as directly identified within its cross-references, are the applications from which it claims priority. These documents establish the effective filing date for the subject matter disclosed in US7885243B2.

Here are the details for each, along with their potential anticipation under 35 U.S.C. § 102:

1. U.S. Patent No. 7,420,952 (Parent Application)

• Full Citation: U.S. Pat. No. 7,420,952, "High Performance Wireless Networks Using Distributed Control," filed May 8, 2003.
• Publication/Filing Date: Filed May 8, 2003. The publication (issue) date for US7420952 is September 2, 2008.
• Brief Description: This patent, as the direct parent of US7885243B2, describes a system and method for developing adaptive wireless networks. It focuses on "smart" Access Point (AP) nodes with embedded intelligence at the network edge, providing application-aware, cost-effective distributed sensing and control. The invention aims to allow a centralized access server to "tune" the network's characteristics (between low latency and high throughput) based on application needs, supporting converged voice, video, and data traffic. It details concepts such as self-configuration, distributed algorithms for parent selection, load balancing (including adjusting "cost of connectivity"), dynamic channel allocation, and secure key distribution, all designed to operate within embedded systems with small footprints.
• Potential Anticipation (35 U.S.C. § 102): U.S. Pat. No. 7,420,952 potentially anticipates any claims in US7885243B2 that disclose subject matter already enabled and described in US7420952. As US7885243B2 is a continuation of US7420952, there is significant overlap in their disclosures. Any claims in US7885243B2 that are identical to claims in US7420952 or cover subject matter fully described and enabled by US7420952 would be anticipated by this prior patent.

2. U.S. Provisional Application No. 60/421,930 (Priority Document)

• Full Citation: U.S. Provisional Application No. 60/421,930, filed October 28, 2002.
• Publication/Filing Date: Filed October 28, 2002. Provisional applications are generally not published as granted patents but establish a priority date.
• Brief Description: This provisional application serves as the foundational priority document for the inventions detailed in both US7420952 and US7885243B2. It would disclose the initial concepts for an adaptive software layer for distributed wireless communication devices, emphasizing the need to address conflicting low latency and high throughput requirements for diverse applications (e.g., voice, video, data) within a single wireless network.
• Potential Anticipation (35 U.S.C. § 102): U.S. Provisional Application No. 60/421,930 would potentially anticipate any claims in US7885243B2 that are fully supported by the disclosure of the provisional application and fall within its priority date. Any subject matter claimed in US7885243B2 that was not adequately described or enabled in this provisional application would not benefit from its priority date and thus would not be anticipated by the provisional itself.

The provided full patent text for US7885243B2 does not explicitly list other "References Cited" or "Prior Art References" beyond this priority chain within its "Description" or "Cross-Reference" sections.

A rigorous obviousness analysis under 35 U.S.C. § 103 requires specific prior art references that predate the patent's priority date of 2002-10-28. The provided "Prior art keywords" (node, parent node, parent, wireless, nodes) and "Prior art date" (2002-10-28) from the Google Patents page do not identify specific prior art documents (e.g., patents, publications) that can be combined. Without these explicit references, a definitive obviousness determination cannot be made.

However, based on the general technical field indicated by the keywords and the patent's detailed description, one can hypothesize how a Person Having Ordinary Skill in the Art (PHOSITA) in 2002 might have considered combining existing technologies to arrive at the invention of US7885243. The PHOSITA would be an individual with a bachelor's degree in electrical engineering or computer science, or equivalent experience, specializing in wireless networking and embedded systems.

The core of US7885243 describes an adaptive wireless network where "smart" Access Point (AP) nodes provide embedded intelligence and distributed control, while a centralized access server sets high-level parameters to "tune" the network's characteristics (e.g., latency vs. throughput) based on application needs. [cite: The present invention describes an adaptive software layer for a distributed set of wireless communication devices that communicate with each other in a wireless network., The software control layer addresses low latency requirements (for applications such as voice) and high throughput requirements (for applications involving data transfer)., An additional objective of this invention is to allow the characteristics of the network to be set by a centralized access server, which can thus “tune” the character of the network to be anything between the two extremes of low latency to high throughput, based on the needs of applications running in the enterprise.]

Hypothetical Combination of Prior Art References and Motivation:

Let's consider a hypothetical combination of three types of prior art that would likely have been available before the October 28, 2002 priority date:

1. Reference A: A document disclosing IEEE 802.11-based Wireless Mesh Networks (WMNs)

   • This reference would teach the fundamentals of wireless mesh networks, including multi-hop communication, the concept of nodes forming parent-child relationships, and basic routing algorithms to forward data towards a gateway or "root" node. [cite: The root node ( 20 ) acts as the interface between the wireless communication devices ( 30 ) and the Ethernet. All wireless devices ( 30 ) communicate to the Ethernet through a root node ( 20 ), which is has a radio interface and an Ethernet link.] Such networks would inherently provide some level of redundancy through alternate paths. [cite: In this implementation of the invention, redundancy is assured because of the mesh characteristic of the network.]

2. Reference B: A document disclosing Quality of Service (QoS) mechanisms in wireless networks

   • This reference would detail methods for differentiating and prioritizing various types of network traffic, such as voice (requiring low latency) and data (requiring high throughput and reliability), in a wireless environment. [cite: The software control layer addresses low latency requirements (for applications such as voice) and high throughput requirements (for applications involving data transfer).] It would explain how applications have varied latency and throughput requirements and how these can be managed, for instance, through queue servicing rates or priority schemes. [cite: The challenge lies in providing—within the same wireless network—the ability to address potentially conflicting latency and throughput needs of diverse applications., Changing the rate the queue is serviced can also be accomplished by specialized communications between wireless communication devices such as Access Point (AP) nodes and the access server to ensure that voice and data, for example, are serviced at different time intervals.]

3. Reference C: A document disclosing Centralized Network Management Systems for Distributed Network Devices

   • This reference would teach the use of a central server to manage and configure a plurality of distributed network devices (e.g., routers, switches, or early wireless access points). It would describe how a central entity can set policies or parameters that guide the behavior of the individual devices, rather than micro-managing each device's operations. [cite: An additional objective of this invention is to allow the characteristics of the network to be set by a centralized access server, which can thus “tune” the character of the network to be anything between the two extremes of low latency to high throughput, based on the needs of applications running in the enterprise., The Access Server does not change the characteristics of each node, it simply sets the parameters governing the characteristic of the network—and let the AP nodes reconfigure their relationships to meet the objectives set by the Access Server.]

Motivation to Combine References A, B, and C:

A PHOSITA in 2002 would be motivated to combine the teachings of these hypothetical references to address well-known challenges in wireless networking, particularly the growing demand for converged voice, video, and data services over wireless infrastructure.

• Motivation for improved application support in WMNs: The PHOSITA would recognize that basic WMNs (Ref A) often struggle to provide consistent performance for applications with diverse QoS requirements, especially time-sensitive traffic like Voice over IP (VoIP) or video streaming, alongside best-effort data traffic.
• Motivation for scalable and flexible QoS management: While QoS mechanisms (Ref B) were known, implementing them effectively and dynamically across a large, distributed wireless network was complex. Centralized management (Ref C) offered a way to set global policies without the scalability issues of micromanaging each node.
• Motivation for self-configuration and ease of deployment: Deploying and configuring large wireless networks, especially mesh networks, was often a labor-intensive process. A system that could largely self-configure based on high-level goals from a central server would be highly desirable to reduce operational costs and complexity. [cite: Installs out of the box. No site survey or installation involved, since system self configures.]

Therefore, a PHOSITA would be motivated to combine:

1. Distributed intelligence and self-configuration from Ref A and C: Equip the nodes of a wireless mesh network (Ref A) with embedded intelligence to execute distributed algorithms (as suggested by the "smart" AP nodes of US7885243 [cite: an objective of the present invention to develop an adaptive wireless network, based on “smart” communication devices such as Access Points (AP) that provide embedded intelligence at the edge of the network]) guided by overarching parameters set by a central management system (Ref C).
2. Application-aware QoS from Ref B and C: Integrate QoS awareness (Ref B) into the network by allowing the central server (Ref C) to define application profiles and translate them into network-wide latency/throughput constraints. The distributed intelligence at the AP nodes would then interpret these constraints to make local routing decisions. [cite: The objective of this invention is to allow the Access Server to set some latency/throughput constraints that causes each AP node to change their relationships to each other and consequently the character of the network., Control parameters, set by an access server can then tune the wireless network to provide a mix between the two extremes of max throughput and low latency.]
3. Adaptive routing for load balancing and redundancy from Ref A and B: Further, a PHOSITA would combine the mesh routing capabilities (Ref A) with QoS considerations (Ref B) to enable nodes to adaptively select parents (and thus routes) based on current load and desired latency/throughput. This would directly lead to concepts like automatic load balancing and failover, where congested nodes increase their "cost of connectivity" to encourage children to seek alternate paths. [cite: Described thus far is how the parent selection process takes into account latency/throughput criteria set by the access server. However, one must also take into account how the system behaves under load, when the load increases at one node, causing congestion., In FIG. 7 , the cost of connectivity is raised from 0 to 3, resulting in one node “leaving” in favor of a better route.]

The motivation would be to create a more robust, efficient, and easily manageable wireless network capable of seamlessly handling diverse application traffic, which was a significant market need at the time. The specific implementation details (e.g., secure key distribution, low-footprint OS) could be seen as routine engineering choices for embedded wireless devices, drawing upon general knowledge in cryptography and embedded systems development prevalent before the priority date.