RF-Aware Packet Filtering for Wireless Network Resource Optimization
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing RF resources due to the lack of consideration for RF circuit state information in packet filtering, leading to unnecessary activation of RF circuits and wastage of resources, especially during bursty traffic patterns or malicious attacks.
Innovation Solution
Implementing RF-aware packet filtering that takes into account the state of RF circuits, including established connections, history of transitions, and availability of resources to selectively permit or deny packet passage, potentially using special data channels to avoid dedicated RF circuit establishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If packet-based approaches are used without RF-aware filtering, then bandwidth utilization is improved and multiple transmissions can be interleaved, but unnecessary RF circuit activation occurs and network resources are wasted
Solution Approach 1:
The packet filter performs preliminary assessment of RF circuit state information before allowing packet transmission. By checking whether an RF circuit is already established for the destination mobile subscriber, the filter prevents unnecessary RF circuit activation and blocks packets that would waste network resources, while still allowing legitimate traffic through established circuits.
Solution Approach 2:
The system implements feedback by continuously monitoring RF circuit state information (whether circuits are established, dormant, or active) and using this information to dynamically control packet filtering decisions. This feedback loop enables the filter to adapt transmission permissions based on current network resource usage patterns.
2Reliability
If RF circuits are established for each packet transmission, then dedicated connection quality is improved, but setup time increases and costs rise
Solution Approach 1:
The patent merges multiple packet transmissions into a single established RF circuit by maintaining the circuit in an active state across multiple transmission opportunities. Instead of establishing separate circuits for each packet or transmission burst, the system combines these transmissions over the same persistent circuit, eliminating repeated setup times while maintaining connection quality.
Solution Approach 2:
The system maintains continuous useful action by keeping RF circuits in an established or active state for extended periods to handle multiple transmissions. Rather than repeatedly establishing and tearing down circuits, the patent sustains continuous circuit availability, allowing packets to be transmitted without interruption or repeated setup delays.
3Object-affected harmful factors
If packet filters block packets without RF circuit awareness, then network security is improved, but legitimate traffic is incorrectly blocked
Solution Approach 1:
The packet filter implements dynamic filtering rules that adapt based on real-time RF circuit state information. Rather than using static block/permit decisions, the filter dynamically adjusts its behavior according to whether RF circuits are established, dormant, or active, and according to the transmission patterns observed, allowing legitimate traffic while blocking malicious patterns.
Solution Approach 2:
The system changes filtering parameters based on RF circuit state conditions. The filter examines parameters such as the number of packets transmitted over an established circuit, the time since last transmission, and the current RF circuit state, using these parameter changes to distinguish between legitimate bursty traffic and malicious attacks.
4Adaptability or versatility
If header information is added to each packet for routing, then routing flexibility is improved, but bandwidth consumption increases
Solution Approach 1:
The patent makes the RF circuit header field serve multiple functions: it identifies the destination mobile subscriber, indicates the RF circuit state (established, dormant, or active), and provides transmission permission guidance. This multi-functional header reduces the need for separate routing information while maintaining routing flexibility and reducing overall bandwidth consumption.
Data Source
AI summary
Methods and systems are provided for filtering packets in a wireless communication system in the to-mobile subscriber direction. This filtering is at least in part based on RF circuit state information. For example, a packet filter is used that either permits or denies packets from reaching a mobile subscriber based on whether there is already an established RF circuit to provide packets to the mobile subscriber. Alternatively, or in addition, the packet filter may consider the history of circuit state transitions associated with a particular mobile subscriber, the percentage (or aggregate number) of available airlink resources that are currently in use, and/or the length of time associated with the dormancy of a mobile subscriber's RF connection. In various embodiments, the packet filter may cause one or more packets to be sent to a mobile subscriber using a special data channel that does not require the establishment of an RF circuit.