WLAN Terminal Data Frame Merging Power Save Poll and Uplink Transmission
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Solution Overview
Problem
Data transmission efficiency in wireless local area networks (WLANs) is relatively low, particularly when terminals are in a power save state, as existing methods do not effectively utilize power save polls to coordinate uplink and downlink data transmission.
Innovation Solution
A method and device for WLANs that involve transmitting a first data frame with indication information and uplink data to indicate a power save poll, allowing the terminal to receive a response frame from the access device, which includes response information, enabling simultaneous inquiry or request of downlink data during uplink data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a terminal in power save state transmits uplink data separately from power save poll, then the terminal can maintain power save mode, but data transmission efficiency is reduced due to separate transmission steps
Solution Approach 1:
The patent merges the power save poll function and uplink data transmission into a single data frame. The indication information field in the data frame serves dual purposes: indicating power save poll status and carrying uplink data, eliminating the need for separate transmission steps and improving transmission efficiency
2Productivity
If downlink data inquiry and uplink data transmission are performed separately, then the terminal can follow traditional protocols, but the transmission process is extended and efficiency is reduced
Solution Approach 1:
The data frame is designed with multi-functionality, where the indication information field can indicate both power save poll status and uplink data presence. This universal design allows a single frame structure to handle multiple functions (power management and data transmission) that traditionally required separate protocols and frames
Data Source
AI summary
Disclosed are methods and devices for data transmission in a wireless local area network. According to the embodiments of the present application, through transmitting by a terminal a first data frame to an access device, where the first data frame includes indication information and uplink data and the indication information is used to indicate a power save poll and uplink data transmission, the terminal can receive a second data frame which is transmitted by the access device according to the first data frame, where the second data frame includes response information of the power save poll indicated by the indication information. Since the first data frame carrying the uplink data indicates the power save poll simultaneously, downlink data from the access device can be inquired or requested at the same time of transmitting the uplink data, so that data transmission efficiency is improved.