Multi-Station Block ACK Handling for Dense Wireless Uplinks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing data transmission between multiple wireless communication terminals, particularly in high-density environments, where legacy and non-legacy devices coexist, necessitating improved methods to utilize bandwidths effectively.
Innovation Solution
A wireless communication method and terminal that utilize a multi-station Block ACK frame to identify and manage data transmission from both associated and unassociated terminals, employing a processor to insert identifiers and trigger frames for efficient resource allocation and random access, enabling simultaneous data transmission and reception across various frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless communication terminals transmit data simultaneously in high-density environments, then communication throughput increases, but interference and collision between signals worsen
Solution Approach 1:
The patent segments the wireless communication system into associated terminals (with AID) and unassociated terminals (without AID). The base station differentiates between these two groups and applies different acknowledgment mechanisms: multi-station Block ACK for associated terminals and individual ACK or CBG ACK for unassociated terminals. This segmentation allows simultaneous data transmission from multiple terminals while managing interference through differentiated resource allocation and acknowledgment strategies.
Solution Approach 2:
The patent introduces a new dimension of identification by using the presence or absence of Association Identifier (AID) to distinguish between associated and unassociated terminals. This dimensional change enables the base station to apply different resource allocation, modulation and coding schemes, and acknowledgment mechanisms to different terminal groups, thereby increasing overall throughput while managing signal collision through differentiated handling.
2Adaptability or versatility
If legacy wireless communication devices are supported for backward compatibility, then device compatibility improves, but bandwidth utilization efficiency deteriorates
Solution Approach 1:
The patent creates a universal acknowledgment mechanism that works for both associated terminals (using multi-station Block ACK) and unassociated terminals (using individual ACK or CBG ACK). The base station can selectively apply different acknowledgment types based on terminal association status, enabling backward compatibility with legacy devices while optimizing bandwidth utilization through efficient multi-terminal acknowledgment for modern devices.
Solution Approach 2:
The patent changes the acknowledgment parameter dynamically based on terminal association status. For unassociated legacy terminals, individual ACK or CBG ACK is used, while for associated modern terminals, multi-station Block ACK is employed. This parameter change allows the system to maintain compatibility with legacy devices while achieving high bandwidth utilization through optimized acknowledgment for contemporary devices.
3Reliability
If individual ACK is used for each unassociated terminal, then transmission reliability improves, but communication efficiency and resource allocation complexity worsen
Solution Approach 1:
The patent applies different acknowledgment qualities locally based on terminal association status. Unassociated terminals receive individual ACK or CBG ACK ensuring high reliability for each transmission, while associated terminals receive multi-station Block ACK providing efficient batch acknowledgment. This local quality differentiation ensures transmission reliability for unassociated terminals while improving overall communication efficiency through the optimized acknowledgment mechanism for associated terminals.
4Productivity
If multi-station Block ACK is used for multiple associated terminals, then resource allocation efficiency improves, but complexity in managing unassociated terminals worsens
Solution Approach 1:
The patent segments terminal management into two distinct pathways: associated terminals managed through AID-based multi-station Block ACK mechanisms, and unassociated terminals managed through individual acknowledgment mechanisms. This segmentation simplifies the overall system by providing clear, differentiated management protocols for each terminal type, reducing the complexity of managing unassociated terminals while maintaining high resource allocation efficiency through optimized multi-terminal acknowledgment for associated terminals.
Data Source
AI summary
A wireless communication terminal communicating wirelessly with a base wireless communication terminal and unassociated with the base wireless communication terminal is disclosed. The wireless communication terminal includes: a transceiver; and a processor configured to receive, by using the transceiver, a multi-station Block ACK frame which indicates whether at least one of MAC frames transmitted from at least one of wireless communication terminals is received by using a first field of the multi-station Block ACK frame for indicating an association identifier corresponding to an association of each of the at least one of wireless communication terminals and the base wireless communication terminal, from the base wireless communication terminal, and determine whether a MAC frame transmitted from the wireless communication terminal is received by the base wireless communication terminal based on whether a second field of the multi-station Block ACK frame includes a MAC address of the wireless communication terminal.