Network quality detection method and device

Abstract

The invention discloses a network quality detection method and device, and the method comprises the steps that a roadside unit (RSU) obtains a received signal strength indicator (RSSI) at a first moment and measurement information from at least one OBU, wherein the measurement information comprises a reference signal receiving power (RSRP); determining a network quality mark according to the RSSIand the RSRP; comparing the network quality mark with a network quality mark threshold value, and determining the network quality according to a comparison result. According to the method, the networkquality condition of an LTE-V2X system is calculated by utilizing RSSI and RSRP; for factors such as mutual collision or external interference of data sent by vehicles due to configuration errors inthe existing network, suggestions about poor network quality caused by external reasons can be effectively given, the network quality can be improved in time, and user experience is prevented from being affected.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a network quality detection method and device. Background technique [0002] LTE-based vehicle-to-everything (LTE-Vehicle to everything, LTE-V2X) technology is an interconnection technology between vehicles based on LTE technology and all possible network devices. Vehicles communicate through direct communication and cellular communication. , realizing the simultaneous support of short-distance and long-distance communication transmission. Among them, the direct connection communication in LTE-V2X technology is mostly used in short-distance communication, that is, point-to-multipoint communication. For example, a vehicle sends a message to surrounding vehicles and roadside units (RSU) through PC5 communication. . [0003] In the LTE-V2X vehicle networking communication technology, the main key performance indicators (Key Performance Indicator, KPI) are: p...

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Problems solved by technology

Among them, PRR is used to represent the packet loss rate of the network, and CBR is used to represent the resource occupancy rate of the network. When there are a large number of vehicles in the LTE-V2X system, it may cause collisions between the resources randomly allocated by the system for each vehicle, and each vehicle will move to the nearby RSUs may interfere with each other when transmitting data, and these situations include both normal vehicle congestion scenarios and abnormal vehicle congestion scenarios when represented by PRR and CBR, so KPIs cannot be used to characterize the current Internet of Vehicles Network Quality Index

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