Dynamic Bit Map for Multicast Group Traffic Indication
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Solution Overview
Problem
Current wireless communication networks are inefficient as they require wireless stations to transmit data to an access point, which then relays it to other stations, especially when communicating with a large number of stations, leading to overhead and inefficiency.
Innovation Solution
Implementing a dynamic bit map system that allows wireless stations to communicate directly with each other by forming clusters and using hashed MAC addresses to indicate which stations are intended to receive multicast frames, reducing the need for centralized access points and minimizing data transmission overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless stations use centralized access point relay for data transmission, then network management and control is simplified, but communication efficiency deteriorates especially when transmitting to large numbers of stations
Solution Approach 1:
The patent segments the centralized network into distributed peer-to-peer communication clusters. Stations are divided into groups that can communicate directly without requiring centralized relay, thereby improving communication efficiency while maintaining manageable cluster sizes for operational simplicity.
Solution Approach 2:
The patent introduces a new dimension of direct peer-to-peer communication channels alongside the traditional centralized architecture. This allows stations to communicate directly in parallel with the centralized system, adding a efficient communication path without abandoning the manageable centralized control structure.
2Productivity
If wireless stations form direct peer-to-peer communication groups, then communication efficiency improves, but device complexity increases due to dynamic bit map generation and management
Solution Approach 1:
The patent applies partial action by using hashed truncated MAC addresses rather than complete addresses in the bit maps. This reduces the complexity of bit map generation and management while maintaining sufficient functionality for identifying target stations in peer-to-peer communication.
Solution Approach 2:
The patent uses copied and hashed versions of MAC addresses rather than the original complete addresses. This creates simplified representations that reduce bit map complexity while preserving the ability to identify and communicate with specific stations in the peer-to-peer network.
3Measurement precision
If complete MAC addresses are used in indication maps, then station identification precision is improved, but data transmission overhead increases
Solution Approach 1:
The patent extracts only the essential identifying portion of MAC addresses by using hashed truncated versions. This removes unnecessary data while retaining sufficient information for accurate station identification in the indication maps, thereby reducing overhead.
Solution Approach 2:
The patent uses partial MAC address information (hashed and truncated) rather than complete addresses. This partial action provides sufficient identification precision for peer-to-peer communication while significantly reducing the data overhead in indication maps.
Data Source
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AI summary
This disclosure describes methods, apparatuses, and systems related to: identifying, at a first wireless communication station, one or more second wireless communication stations within a predetermined proximity of the first wireless communication station; determining, at the first wireless communication station, one or more second wireless communication stations identified within the predetermined proximity of the first wireless communication station for which a multicast frame is intended; generating, at the first wireless communication station, a bit map comprising a hashed identifier of each of the one or more second wireless communication stations for which the multicast frame is intended, wherein the bit map is included in the multicast frame; and causing to transmit, by the first wireless communication station, the multicast frame from the first wireless communication station to the one or more second wireless communication stations for which the multicast frame is intended.