Measurement message sending method and device of RTT measurement and location system

Abstract

The invention discloses a measurement message sending method and a measurement message sending device of an RTT measurement and location system. The method comprises the following steps: checking the retransmission mark aiming at the sending finish state of each group of measurement message of terminal STA to be measured, confirming whether the terminal STA to be measured is in the network communication chip open state or in the network communication chip close state according to the retransmission mark; confirming the state change event of the terminal STA to be measured according to the history state and current state of the terminal STA to be measured; and adjusting the number of the measurement message sent to the terminal STA to be measured according to the state change event. The measurement message sending method and the measurement message sending device can raise the measurement efficiency and reduce the resource consumption.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for sending measurement messages in an RTT measurement and positioning system. Background technique [0002] With the application of mobile Internet and big data, indoor positioning technology based on WLAN network is becoming more and more popular, and has bright application prospects in many industries such as retail, hotel, transportation, and medical care. [0003] The traditional WLAN positioning technology depends on the RSSI signal strength, and can be divided into the following two specific methods: the triangulation positioning method based on the signal transmission model and the fingerprint feature method based on signal sampling. Due to indoor multipath effects, obstacles and other factors, the RSSI value is very unstable, resulting in unreliable positioning results based on the RSSI value. The new generation of positioning system is based ...

AI Technical Summary

Problems solved by technology

[0007] This type of terminal that turns off the network communication chip in a specific state has the advantage of saving battery power to the greatest extent and bringing users the ultimate experience; however, this working method brings measurement efficiency to the RTT active measurement system Low, waste of resources and other issues

[0008] Specifically, in a common RTT measurement and positioning system, the AP sends a positioning detection request message to the STA according to the request of the server, and receives a positioning detection response message from the STA. However, if the STA is in the energy-saving mode and has shut down the network If the communication chip is used, the STA cannot perceive the positioning detection request message, nor can it respond to the positioning detection response message, which will cause the AP to continuously send the positioning detection request message to the STA and cannot receive the positioning detection message sent by the corresponding STA. Response messages, such measurements are invalid measurements, which not only leads to a decrease in measurement efficiency, but also wastes air interface resources, especially considering that the hardware retransmission function is generally enabled on the AP, which will cause invalid measurement messages to be generated. double increase

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