Position-Based Terminal Grouping for Collision-Free Beacon Transmission
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Solution Overview
Problem
Current communication systems lack a concrete method for transmitting and receiving data in new frequency bands while maintaining service quality, particularly in wireless local area networks (WLANs), which hinders stable high-speed data transmission to multiple users.
Innovation Solution
The system employs a data transmission apparatus and method that includes a reception unit for gathering terminal information, a verification unit for position-based grouping of terminals, and a transmission unit for allocating different time intervals in beacon frames to prevent collisions, allowing multiple access in a CSMA scheme, thereby managing terminal access and maintaining service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminals access the AP simultaneously in a new frequency band, then data transmission speed increases, but collisions between terminals occur
Solution Approach 1:
The patent segments terminals into multiple terminal groups based on their positions and transmits different beacon frames to each group. Each beacon frame contains transmission opportunity information specific to its terminal group, allowing simultaneous access without collisions by dividing the overall transmission task into separate, coordinated segments.
2Reliability
If position-based grouping is implemented to manage terminal access, then collision prevention improves, but system complexity increases
Solution Approach 1:
The patent enables terminals to autonomously determine their own terminal group IDs based on their positions and transmit this information in beacon frames without requiring centralized management or complex coordination protocols. Each terminal independently identifies its group and transmits accordingly, simplifying the overall system architecture while maintaining collision prevention.
3Reliability
If different time intervals are allocated to terminal groups in beacon frames, then service quality is maintained, but transmission efficiency decreases
Solution Approach 1:
The patent allocates different time intervals to terminal groups within beacon frames in a periodic manner. Each terminal group receives beacon frames at specific periodic intervals, allowing coordinated access that maintains service quality through structured time allocation while enabling efficient transmission through repeated cycles of beacon frame transmission and data communication.
Data Source
AI summary
A data transmission apparatus in a communication system includes a reception unit configured to receive adjacent terminal information from a plurality of terminals through a new frequency band for transmission and reception of data between the terminals and one AP (access point); a verification unit configured to identify positions of the terminals within a service coverage of the AP through the adjacent terminal information, group the terminals into terminal groups through position-based grouping, and verify transmission possible times to the AP, in terminals included in the terminal groups; and a transmission unit configured to transmit the transmission possible times to the terminals included in the terminal groups through beacon frames in the AP, wherein, as the transmission possible times for the terminal groups, different time intervals are allocated in a beacon interval of the beacon frames.