Solutions for testing emergency call handling capability include: receiving, into a user equipment (UE), a dialed number (e.g., 922); mapping, by the UE, the dialed number to a test service uniform resource name (URN); and transmitting the test service URN to a wireless network. Further solutions include: receiving, by the wireless network, from the UE, the test service URN; differentiating, by the wireless network, the test service URN from an SOS URN; and based on at least receiving the test service URN, establishing an emergency test voice call between the UE and a public safety answering point (PSAP) emulator. In some examples, the test service URN comprises urn:service and test (e.g., urn:service:test.sos or urn:service:sos.test), and is flagged by a bit field of an emergency service category value. In some examples, the wireless network transmits to the UE, an indication that the dialed number maps to the test service URN.

Communication systems and communication methods capable of evaluating a voice quality in a voice communication of a communication network and a presence or absence of a call drop of the voice communication are provided. A voice communication of transceiving a test signal for voice communication quality evaluation between a communication terminal apparatus 100 and a voice communication evaluation system 400 via the communication network 300 is performed. A voice quality evaluation value is calculated based on the test signal before transmission and the test signal after reception in the voice communication. A presence or absence of a call drop of the voice communication is determined based on a presence or absence of reception interruption of the test signal.

Communication systems and communication methods capable of evaluating a voice quality in a voice communication of a communication network and a presence or absence of a call drop of the voice communication are provided. A voice communication of transceiving a test signal for voice communication quality evaluation between a communication terminal apparatus 100 and a voice communication evaluation system 400 via the communication network 300 is performed. A voice quality evaluation value is calculated based on the test signal before transmission and the test signal after reception in the voice communication. A presence or absence of a call drop of the voice communication is determined based on a presence or absence of reception interruption of the test signal.

The voltage monitoring circuit includes a first multiplexer, a controller, a resistor-network circuit and a first comparison circuit. The first multiplexer receives a plurality of first subject voltages. The controller controls the first multiplexer to output one of the plurality of first subject voltages and generates a testing signal including a plurality of electric potentials. The controller is configured to output the plurality of electric potentials switching according to a switch command. The resistor-network circuit is configured to sequentially generate a plurality of first reference voltages according to switches of the plurality of potentials. The first comparison circuit is configured to sequentially compare each of the plurality of first reference voltages to the first subject voltage for sequentially outputting a plurality of first comparing results and sending the plurality of first comparing results to the controller so that a voltage value of the first subject voltage is determined.

The voltage monitoring circuit includes a first multiplexer, a controller, a resistor-network circuit and a first comparison circuit. The first multiplexer receives a plurality of first subject voltages. The controller controls the first multiplexer to output one of the plurality of first subject voltages and generates a testing signal including a plurality of electric potentials. The controller is configured to output the plurality of electric potentials switching according to a switch command. The resistor-network circuit is configured to sequentially generate a plurality of first reference voltages according to switches of the plurality of potentials. The first comparison circuit is configured to sequentially compare each of the plurality of first reference voltages to the first subject voltage for sequentially outputting a plurality of first comparing results and sending the plurality of first comparing results to the controller so that a voltage value of the first subject voltage is determined.

A method and an apparatus for classifying a telephone dialing test audio based on AI is provided. Data of a telephone dialing test audio is acquired first, then the data of the telephone dialing test audio is processed via a preset classifier so as to obtain similarities among the data of the telephone dialing test audio and telephone types in the preset classifier, in which the preset classifier is a deep-learning model determined by historical data of telephone dialing test audios and their corresponding telephone types; finally, the telephone type corresponding to the telephone dialing test audio is determined according to the similarities. With the method and apparatus, the telephone dialing test audio is classified via machine learning to determine whether a user is a normal user, thus human costs is saved and an efficiency of dialing test is increased.

A method and an apparatus for classifying a telephone dialing test audio based on AI is provided. Data of a telephone dialing test audio is acquired first, then the data of the telephone dialing test audio is processed via a preset classifier so as to obtain similarities among the data of the telephone dialing test audio and telephone types in the preset classifier, in which the preset classifier is a deep-learning model determined by historical data of telephone dialing test audios and their corresponding telephone types; finally, the telephone type corresponding to the telephone dialing test audio is determined according to the similarities. With the method and apparatus, the telephone dialing test audio is classified via machine learning to determine whether a user is a normal user, thus human costs is saved and an efficiency of dialing test is increased.

Systems and methods of testing call quality and control devices are provided according to examples of the present disclosure. In one aspect, the system includes a simulation base station, a tested communication device, a control device configured to transmit a call instruction such that a call between the tested communication device and the simulation base station is established, and a testing device configured to provide a standard audio, where the standard audio becomes a test audio after it is processed by the tested communication device during a transmission process via the call and the test audio is sent back to the testing device, and perform a similarity comparison between the test audio and the standard audio to obtain a similarity comparison result, where the similarity comparison result shows the call quality of the tested communication device.

The embodiments of the present invention provide a method for configuring a reference signal, a base station and a user equipment. The method includes: receiving, by a first base station, candidate reference signal configuration information of a second base station transmitted by the second base station, and/or candidate reference signal configuration information of the first base station transmitted by an operation and maintenance entity (OAM); and configuring, by the first base station, a reference signal for a user equipment (UE) according to the candidate reference signal configuration information of the second base station, and/or, configuring, by the first base station, a reference signal for a UE according to the candidate reference signal configuration information of the first base station.

The embodiments of the present invention provide a method for configuring a reference signal, a base station and a user equipment. The method includes: receiving, by a first base station, candidate reference signal configuration information of a second base station transmitted by the second base station, and/or candidate reference signal configuration information of the first base station transmitted by an operation and maintenance entity (OAM); and configuring, by the first base station, a reference signal for a user equipment (UE) according to the candidate reference signal configuration information of the second base station, and/or, configuring, by the first base station, a reference signal for a UE according to the candidate reference signal configuration information of the first base station.