Multi-Link Association ID Segmentation for Buffered Data Identification
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Solution Overview
Problem
Current multi-link communications technologies fail to efficiently identify communication links with buffered data, leading to inefficiencies in data transmission between access points and station devices.
Innovation Solution
The method involves an access point multi-link device allocating a unique Association ID to non-access point multi-link devices, which is included in a Traffic Indication Map element within management frames to indicate buffered data across multiple communication links, allowing for efficient identification of buffered data across different links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If typical multi-link communications technology is used, then the system can operate with multiple access points and stations, but it cannot efficiently identify which communication links have buffered data
Solution Approach 1:
The patent segments the Association ID space into distinct ranges: AIDs 1-2n-1 are reserved for indicating buffered data status across multiple links, while AIDs 2n+1 onwards are allocated to non-AP MLDs. This segmentation allows the system to efficiently identify which links have buffered data without compromising productivity, as the segmented AID structure enables quick link status identification while maintaining normal data transmission operations.
2Quantity of substance
If Association IDs are allocated to non-AP MLDs without reservation, then more AIDs are available for station devices, but there is no clear indication of which links have buffered data
Solution Approach 1:
The AID space is segmented into reserved ranges for link status indication and available ranges for non-AP MLDs. Specifically, AIDs 1-2n-1 are reserved for buffered data indication, while AIDs 2n+1 onwards are allocated to stations. This segmentation ensures both sufficient AID availability for many stations and clear buffered data link information through the reserved AID ranges.
Solution Approach 2:
The patent introduces an intermediary mechanism where specific AID ranges act as indicators for buffered data status. The TIM element uses these reserved AID ranges to signal which links have buffered data, serving as an intermediary between the buffer status and the communication links, thereby preserving link information while maintaining AID availability for stations.
3Adaptability or versatility
If the same AID range is used for both link indication and station allocation, then the AID space is maximized, but confusion arises about which AIDs correspond to which links
Solution Approach 1:
The AID space is clearly segmented into distinct non-overlapping ranges: AIDs 1-2n-1 for link status indication and AIDs 2n+1 onwards for non-AP MLDs. This segmentation provides adaptability for different network configurations while reducing management complexity through clear, rule-based allocation that eliminates confusion about AID-link correspondence.
Data Source
AI summary
Embodiments of a method and an apparatus for multi-link communications are disclosed. In an embodiment, a method for multi-link communications involves associating, by an access point (AP) multi-link device (MLD), with a non-AP MLD operating on a first set of links, and allocating, by the AP MLD, an Association ID (AID) to the non-AP MLD, such that the AID is included in a first plurality of AIDs, wherein the first plurality of AIDs does not include a first set of AIDs, and wherein at least one of the first set of AIDs are assigned to at least one of APs and Basic Service Set Identifiers (BSSIDs) on a second set of links.