Wireless Terminal Multi-User Uplink Trigger Frame Scheduling
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing simultaneous data transmissions from multiple terminals in high-density environments, leading to potential data collisions and reduced spectral efficiency.
Innovation Solution
A wireless communication method and terminal that utilize a processor to transmit a trigger frame for multi-user uplink transmission, receive and allocate resources for multi-user uplink data, and transmit block ACKs simultaneously across allocated resources, ensuring synchronized termination of block ACK transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminals transmit data simultaneously in high-density environments, then data transmission throughput increases, but data collisions and interference increase leading to reduced reliability
Solution Approach 1:
The patent segments the transmission medium by introducing trigger frames that divide the transmission opportunity into distinct time slots for different terminals. The access point sends a trigger frame that schedules specific terminals to transmit uplink data at specific times, thereby segmenting the previously simultaneous transmissions into sequential, collision-free time slots while maintaining high overall throughput
Solution Approach 2:
The access point performs preliminary scheduling by sending trigger frames before the actual data transmission. These trigger frames contain scheduling information that pre-arranges the transmission sequence of multiple terminals, preventing collisions before they occur and ensuring reliable data transmission while maintaining high throughput
2Productivity
If block ACK transmissions are sent simultaneously across multiple channels, then acknowledgment efficiency increases, but channel occupancy time increases reducing spectral efficiency
Solution Approach 1:
The patent implements periodic action by sending block ACK transmissions in a structured sequence rather than simultaneously. The access point sends trigger frames that schedule block ACK transmissions at specific time intervals, creating a periodic pattern that maintains acknowledgment efficiency while controlling the total channel occupancy time through optimized timing
Solution Approach 2:
The patent applies dynamics by making the block ACK transmission timing flexible and adaptive. The trigger frames contain dynamic scheduling information that adjusts the transmission timing based on current channel conditions and traffic patterns, optimizing the balance between acknowledgment efficiency and spectral efficiency in real-time
Data Source
AI summary
The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.