Radio Parameter Configuration for 802.11ax Trigger-Based Reception
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Solution Overview
Problem
In the 802.11ax wireless local area network protocol, the uplink single-user transmission mechanism limits overall network efficiency, and the scheduling-based uplink multi-user transmission process faces issues where the preamble of a trigger-based PPDU does not carry signaling information required for the access point station to parse data, preventing normal reception of the trigger-based PPDU.
Innovation Solution
A method, apparatus, and system for configuring radio transmission and reception parameters, where a station configures a transmission module using a first parameter set to transmit a radio frame with a second parameter set, and configures a reception module using the same or a different parameter set to receive a radio frame, including common and user parameter/signaling information such as bandwidth, coding type, and resource allocation, to ensure proper reception of the trigger-based radio frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the preamble of trigger-based PPDU does not carry signaling information, then the transmission structure is simplified, but the AP station cannot normally receive and parse the data
Solution Approach 1:
The patent segments the parameter configuration into two distinct sets: first parameter set for transmission module configuration and second parameter set for reception module configuration. This segmentation allows the transmission and reception processes to be independently optimized, resolving the contradiction between simplified transmission structure and reliable data reception.
Solution Approach 2:
The patent applies preliminary action by configuring the reception module with the second parameter set before the actual data reception occurs. This pre-configuration ensures that the AP station is ready to correctly receive and parse the trigger-based PPDU, preventing reception failures while maintaining transmission simplicity.
2Ease of operation
If uplink single-user transmission mechanism is used, then the transmission process is simple, but the overall network transmission efficiency is limited
Solution Approach 1:
The patent introduces dynamic parameter configuration where the system can adapt between different transmission modes. By dynamically configuring transmission and reception parameters based on network conditions, the system achieves both operational simplicity and high transmission efficiency in dense scenarios.
Solution Approach 2:
The patent utilizes parameter changes by switching between different parameter sets (first for transmission, second for reception) depending on the transmission mode. This allows the system to maintain ease of operation while achieving high network transmission efficiency through optimized parameter configurations for multi-user scenarios.
3Loss of information
If the AP station uses conventional uplink single-user transmission, then the signaling information can be acquired from the preamble, but the network transmission efficiency is limited in dense scenarios
Solution Approach 1:
The patent makes the parameter configuration system universal by designing it to handle both single-user and multi-user transmission modes. The same configuration mechanism works for different transmission types, ensuring signaling information is properly acquired while enabling high-efficiency multi-user transmissions in dense scenarios.
Solution Approach 2:
The patent introduces parameter sets as intermediaries between the transmission process and the reception process. These parameter sets act as mediators that carry the necessary configuration information, ensuring that signaling information is properly transmitted and received without limiting network transmission efficiency.
Data Source
AI summary
Disclosed is a method for configuring radio transmission and reception parameters. The method includes: configuring, by a station, a transmission module by using a first parameter set and transmitting a first radio frame, where the first radio frame has a second parameter set; and configuring, by the station, a reception module by using the second parameter set and receiving a second radio frame triggered by the first radio frame. Also disclosed are an apparatus and system for configuring radio transmission and reception parameters.