Wireless Terminal Trigger Frames for OFDMA Channel Allocation
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently utilizing bandwidths for simultaneous data transmission between multiple stations and access points in high-density wireless LAN environments.
Innovation Solution
A wireless communication method and terminal that utilize a transceiver and processor to manage channel allocation and data transmission through trigger frames, allowing access points and stations to transmit data simultaneously using OFDMA, with channel information being signaled to multiple terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional wireless communication methods are used in high-density environments, then device compatibility and basic connectivity are maintained, but bandwidth utilization efficiency and data transmission capacity are insufficient
Solution Approach 1:
The system enables autonomous channel allocation where wireless devices automatically select and negotiate channels without centralized control. Devices independently perform channel assessments, select optimal channels, and establish connections, eliminating the need for complex centralized channel management infrastructure while improving bandwidth utilization in high-density environments
Solution Approach 2:
The patent introduces a new dimension of operation by enabling simultaneous data transmission across multiple frequency channels (2.4 GHz, 5 GHz, 60 GHz) and multiple spatial streams through MIMO technology. This multi-dimensional approach transforms single-channel sequential communication into multi-channel parallel communication, dramatically increasing data transmission capacity without proportionally increasing system complexity
2Speed
If single-channel sequential transmission is used, then device complexity is low, but bandwidth utilization efficiency and communication speed are limited
Solution Approach 1:
The patent merges multiple frequency channels (2.4 GHz, 5 GHz, 60 GHz) and multiple spatial streams into a unified communication framework. By combining these resources simultaneously, the system achieves multi-channel parallel transmission where devices can exchange data across multiple channels at once, dramatically increasing communication speed while managing complexity through standardized protocols
Solution Approach 2:
The system performs preliminary channel assessment and selection before actual data transmission. Devices conduct channel quality evaluations, identify optimal channels, and establish transmission parameters in advance, which simplifies the subsequent data transmission process and reduces coordination complexity during active communication phases
3Productivity
If centralized channel allocation is implemented, then channel utilization efficiency improves, but system complexity and coordination overhead increase
Solution Approach 1:
The system replaces centralized channel allocation with self-service autonomous channel selection. Each wireless device independently performs channel quality assessment, selects optimal channels, and negotiates transmission parameters with communicating peers without requiring centralized control. This distributed approach maintains high bandwidth utilization efficiency while eliminating centralized control complexity and coordination overhead
Data Source
AI summary
Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal, and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a trigger frame including information on a channel to be used, by a plurality of wireless communication terminals including the wireless communication terminal, in communication with a base wireless communication terminal that is any one wireless communication terminal different from the plurality of wireless communication terminals.