60 GHz WLAN Frame Length Synchronization to Reduce Interference
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Solution Overview
Problem
In wireless local area networks operating in the 60 GHz band, asynchronous information transmission on different channels leads to interference, affecting communication efficiency and quality due to varying frame lengths between the network device and user equipment.
Innovation Solution
The method involves determining channels within an announcement transmission interval, sending request frames with frame length indication information, and adjusting response frames to match the indicated length by padding or truncating, ensuring all response frames have a consistent length to synchronize transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the network device schedules multiple user equipments on multiple channels within the ATI, then the communication capacity and throughput are improved, but interference is caused due to asynchronous receiving and sending of information with different lengths on different channels
Solution Approach 1:
The patent changes the parameter of frame length by introducing frame length indication information in the request frame. This allows the network device to control and standardize the length of response frames from different user equipments, ensuring synchronous reception despite multi-channel operations. The frame length parameter is explicitly set and enforced through the indication mechanism.
Solution Approach 2:
The patent applies preliminary action by including frame length indication information in the request frame before the actual data transmission occurs. This allows user equipments to prepare and pad their response frames to the correct length in advance, preventing asynchronous reception and interference before it can occur during the ATI.
2Adaptability or versatility
If response frames from different user equipments have different lengths, then the adaptability to different data requirements is improved, but asynchronization occurs in the network device's receiving and sending operations
Solution Approach 1:
The patent standardizes the frame length parameter by using frame length indication information to control all response frames to have the same length. This eliminates asynchronization issues while still allowing adaptability through the structured format that can carry different data types within the standardized length framework.
3Productivity
If the network device receives and sends information asynchronously on different channels, then the communication efficiency is improved through parallel processing, but communication quality deteriorates due to interference
Solution Approach 1:
The patent changes the time parameter by standardizing frame lengths, which enables the network device to synchronously receive frames from multiple channels. This maintains parallel processing efficiency while improving communication quality by eliminating interference caused by asynchronization.
Solution Approach 2:
The patent uses preliminary action by pre-specifying frame lengths in the request frame, allowing user equipments to prepare properly formatted responses before transmission. This ensures that parallel communications on different channels do not cause interference, maintaining both efficiency and quality.
Data Source
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AI summary
Embodiments of this application provide an information transmission method, user equipment, and a network device. The information transmission method in the embodiments of this application includes: determining, by user equipment, a channel corresponding to the user equipment within an ATI; receiving, by the user equipment on the channel corresponding to the user equipment within the ATI, a request frame sent by a network device, where the request frame includes frame length indication information; and sending, by the user equipment based on the frame length indication information, a first response frame to the network device on the channel corresponding to the user equipment within the ATI, where a length of the first response frame is a frame length corresponding to the frame length indication information. In the embodiments of this application, it can be effectively avoided that different user equipments asynchronously receive information on different channels, interference caused when the network device receives and sends information on different channels is reduced, and communication efficiency and communication quality are improved.