Partial Association Identifier for WLAN M2M Collision Reduction
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Solution Overview
Problem
In Machine-to-Machine (M2M) communication within WLAN systems, the increasing number of devices leads to prolonged channel access times for individual devices, hindering power saving and degrading overall system performance due to shared medium communication.
Innovation Solution
A method for configuring a frame with a Partial Association Identifier (PAID) is introduced to optimize channel access and reduce collisions in IEEE 802.11 WLAN systems, particularly in M2M scenarios, by determining PAID values for control frames to ensure proper virtual carrier sensing and prevent unnecessary channel access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of devices increases in M2M communication, then the network capacity and device connectivity are improved, but the channel access time for each device increases and system performance degrades
Solution Approach 1:
The patent segments the Association Identifier (AID) into a Partial Association Identifier (PAID) and a full AID. The PAID is used for initial frame identification and virtual carrier sensing, while the full AID is used only when necessary for complete device identification. This segmentation reduces the overhead in frequent communication scenarios while maintaining the ability to identify all devices when needed.
Solution Approach 2:
The patent applies partial action by using only the PAID (a partial identifier) for virtual carrier sensing and initial frame processing instead of the complete AID. This partial identification is sufficient for most communication scenarios, reducing the time and resources required for channel access while maintaining system functionality.
2Quantity of substance
If the number of devices increases in M2M communication, then the network capacity is improved, but power consumption of individual devices increases
Solution Approach 1:
By segmenting the identifier system into PAID and full AID, the patent enables devices to use shorter identifiers for frequent communications. This reduces the processing overhead and energy consumption for each transmission, allowing battery-powered M2M devices to operate more efficiently while supporting large numbers of connected devices.
Solution Approach 2:
The patent uses partial identification (PAID) for most communication operations, which requires less processing power and energy than using complete identifiers. This partial action approach significantly reduces the power consumption of individual devices in large-scale M2M networks.
3Quantity of substance
If the number of devices increases in M2M communication, then the network capacity is improved, but overall system performance degrades
Solution Approach 1:
The patent segments the identifier handling into two levels: PAID for rapid identification and virtual carrier sensing, and full AID for complete device management. This segmentation enables the system to handle large numbers of devices efficiently by using the lightweight PAID for frequent operations, thereby maintaining high system performance despite increased device density.
Solution Approach 2:
By using partial identification (PAID) for virtual carrier sensing and frame processing, the patent reduces the computational overhead and time required for each communication operation. This partial action approach maintains high system productivity even when supporting a large number of M2M devices.
Data Source
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AI summary
The present invention relates to a wireless communication system, and more particularly disclosed are a method and a device for transceiving a frame comprising a partial association identifier (PAID) in the wireless communication system. A method for transmitting the frame in a station (STA) of the wireless communication system according to one embodiment of the present invention comprises a step of transmitting the frame comprising a PAID field, and: if the frame is a frame other than a control frame when the frame is an uplink frame to be transmitted to an access point (AP), the value of the PAID field can be set as a value other than 0, which is calculated on the basis of BSSID (Basic Service Set ID) of the AP; and if the frame is the control frame when the frame is the uplink frame, the value of the PAID field can be set as 0.