Heterogeneous Wireless Network Augmentation via Proxy Handoff
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Solution Overview
Problem
Current wireless access technologies face a tradeoff between coverage and capacity, with no single technology providing ubiquitous, high-bandwidth coverage, and managed networks limit simultaneous users, leading to spotty availability and interference issues.
Innovation Solution
A system and method for creating opportunistic data transfer over heterogeneous wireless networks by using multiple network interfaces and a proxy to maintain connections and application states, allowing seamless communication path changes based on policies and technologies, and facilitating data transfer across different access networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wide-area wireless access technologies are used, then coverage is improved, but per-user capacity deteriorates
Solution Approach 1:
The patent combines multiple wireless access technologies (WiFi, WWAN, Bluetooth) into a unified access network that can simultaneously provide wide-area coverage and high per-user capacity. The system merges the coverage advantage of WWAN with the capacity advantage of WiFi, allowing users to access high-bandwidth resources while maintaining broad geographic coverage.
Solution Approach 2:
The access network is designed to support multiple communication technologies and protocols simultaneously, making it universal in its capability. The system can handle both wide-area wireless communications and local-area high-speed communications through a single unified infrastructure, eliminating the need for separate networks for different coverage-capacity requirements.
2Quantity of substance
If short-range access networks are deployed to provide coverage, then per-user capacity is improved, but capital cost deteriorates
Solution Approach 1:
The patent merges short-range high-capacity WiFi networks with wide-area WWAN infrastructure into a unified access network. This combination allows the system to leverage existing WWAN towers for coverage while using WiFi access points strategically to provide high capacity, thereby reducing the total capital cost compared to deploying only short-range networks for broad coverage.
Solution Approach 2:
The unified access network acts as an intermediary layer between the wide-area WWAN infrastructure and end-user devices. It mediates between the low-cost, wide-coverage WWAN and the high-capacity, short-range WiFi, optimizing the balance between capital expenditure and service quality.
3Ease of operation
If managed wireless technologies are used, then network control is improved, but number of simultaneous users deteriorates
Solution Approach 1:
The patent implements dynamic resource allocation and load balancing mechanisms that automatically adjust network control parameters based on current traffic conditions and user demands. The system can dynamically switch between managed and unmanaged modes, and between different access technologies, to optimize both control and user capacity under varying conditions.
Solution Approach 2:
The system changes operational parameters such as bandwidth allocation, access priority, and connection management policies based on real-time network conditions. This allows the network to maintain effective control while accommodating a larger number of simultaneous users by adapting parameters rather than maintaining fixed limits.
4Area of stationary object
If 802.11 mesh network deployment is used, then ubiquitous wireless broadband access is improved, but capacity deteriorates when multi-hop count is large
Solution Approach 1:
The patent segments the wireless network into hierarchical levels: direct single-hop connections for high-capacity access points, and controlled multi-hop connections for extended coverage. The system identifies and prioritizes single-hop connections for capacity-critical traffic while allowing multi-hop connections for less demanding applications, thereby maintaining overall network capacity while achieving ubiquitous coverage.
Data Source
AI summary
Systems and methods are discussed for providing multiple network interfaces to devices to communicate with each other using various policies, for using a proxy to maintain a connection with a legacy system such that a data connection to the legacy system may be continued when an end device connects with the proxy, and for maintaining application states when devices become disconnected such that their activities may be resumed when reconnected. Multiple wireless networks allow communication sessions to transfer across each of the multiple wireless networks in a seamless fashion. One wireless network may control the handoff to another wireless network or a mobile device with an OCMP may control the handoff.