Wireless Control Channel Packet Scrambling for Overhead Reduction
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Solution Overview
Problem
Current wireless communication systems face significant processing and transmission overhead due to the need for each access terminal to process and handle control information intended for other terminals, leading to wasted computing power and bandwidth.
Innovation Solution
Implementing a method where control packets are scrambled using a Media Access Controller Identifier (MAC-ID) or other identifiers, allowing only targeted access terminals to correctly descramble and process the information, while others discard it as corrupted, thereby reducing processing and transmission overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control packets are broadcast to all access terminals, then all terminals can receive control information, but processing overhead and computational waste increase significantly
Solution Approach 1:
The patent applies local quality by making control packets specific to individual access terminals through unique identifiers (MAC addresses) and selective addressing. Instead of broadcasting to all terminals uniformly, the system tailors control information to specific terminals, thereby reducing processing overhead for terminals not targeted by the control packet while maintaining the ability to broadcast when necessary.
Solution Approach 2:
The patent segments the control channel into multiple sub-channels or logical channels, each dedicated to specific access terminals or groups of terminals. This segmentation allows the system to distribute control information more efficiently by dividing the overall control traffic into manageable segments that can be selectively delivered to interested terminals only, reducing unnecessary processing for others.
2Reliability
If all access terminals process control packets, then no information is lost, but computational resources are wasted on irrelevant packets
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of a control packet processor or filter that sits between the control channel and the access terminals. This intermediary selectively forwards control packets to terminals based on their identifiers and current state, ensuring reliable delivery to interested terminals while preventing unnecessary processing for others, thus optimizing computational resource usage.
Solution Approach 2:
The patent implements preliminary action by having access terminals register their identifiers and receive priorities in advance before control packets are transmitted. The system pre-configures the filtering and routing logic so that when control packets arrive, terminals can quickly determine relevance without complex real-time processing, reducing computational burden while maintaining reliable information delivery.
3Adaptability or versatility
If control packets are broadcast to all terminals, then comprehensive control is achieved, but transmission overhead and bandwidth consumption increase
Solution Approach 1:
The patent applies local quality by directing control packets to specific access terminals based on their unique identifiers and operational requirements. Instead of broadcasting to all terminals uniformly, the system tailors control information delivery to local needs, thereby reducing overall bandwidth consumption while maintaining comprehensive control coverage for terminals that require it.
Solution Approach 2:
The patent implements dynamics by making the control packet transmission adaptive rather than static. The system dynamically adjusts which terminals receive control packets based on real-time conditions such as terminal activity, priority levels, and network state. This dynamic approach allows comprehensive control when needed while minimizing bandwidth consumption during periods when fewer terminals require updates.
Data Source
AI summary
Various methods and systems receiving information from an access point over a wireless link in order to reduce processing and/or transmission overhead are disclosed. Such methods and systems may include the processing of a received packet using a descrambling operation on at least a portion of the packet's information based on a MAC-ID associated with an access terminal to produce at least a first processed packet, and determining whether the received packet is targeted to the access terminal based on the first processed packet.