207results about How to "Guaranteed call quality" patented technology

The invention discloses a conversation voice monitoring method and system. The method comprises: collecting voice data of conversion of a server side and a client in real time; carrying out voice identification on the voice data of the service side and the client to obtain a server side identification text and a client identification text; and according to the conversation voice data of the server side and the corresponding identification text as well as the conversation voice data of the client and the corresponding identification text, carrying out real-time monitoring on the conversation voice of the server side. With the method and system, comprehensive and real-time monitoring of conversation voices of the customer service staff can be realized; and the service quality of the customer service staff is improved.

The invention discloses a video call system, device and method. The method comprises the steps: connecting a first LTE network, and building a first communication channel; building video call connection with an opposite side through the first LTE network, and transmitting call data through the first communication channel; connecting the second LTE network in a video call process when the preset condition is met, and building a second communication channel; and transmitting the call data through the first communication channel and the second communication channel. The beneficial effects of the invention are that the method starts two 4G networks in the video call process for transmitting the call data at the same time, thereby enlarging the network bandwidth, improving the data transmission rate, and improving the video communication quality. Even if the first 4G network signal is weaker, the second 4G network can be used for guaranteeing the video call quality, thereby improving the flexibility of video call and the intelligentization level of a mobile terminal, and improving the video call experience of a user.

The invention discloses an intelligent anti-interference wireless communication method, an intelligent anti-interference wireless communication system, a server and a storage medium. Whether a call environment is seriously interfered according to a delay time parameter, a packet loss probability parameter and an effective information proportion of the call environment through detecting the call environment of a current mobile terminal; when the call environment is seriously interfered, a target frequency band of which the frequency band call quality meets a preset screening condition is screened from a working frequency band corresponding to a communication signal of the current mobile terminal; a data signal to be transmitted and an interference signal are extracted from the communicationsignal, and the waveform and frequency component of the interference signal are acquired; the data to be transmitted is acquired from the data signal to be transmitted, and the interference signal isrebuilt according to the data to be transmitted and the waveform and frequency component of the interference signal, and the rebuilt interference signal is switched to the target frequency band fromthe current network frequency band. Therefore, the call environment with relatively large interference can be avoided, and the interference signal is eliminated, the call quality is ensured, and the user experience is enhanced.

The invention discloses a signal measuring method, equipment and a system. The method is suitable for a wireless communication system, the wireless communication system comprises a super cell, and the super cell comprises two or more than two sectors. The method comprises the following steps: a base station controller transmits to-be-measured information to a base station, wherein the to-be-measured information comprises a sector marker of the to-be-measured sector, a carrier wave marker of a carrier wave to be measured in the to-be-measured secotor and wireless resource information of user equipment (UE) to be measured, so that the base station measures an uplink signal of the UE to be measured in the sector to be measured according to the to-be-measured information; obtained measuring results of the uplink signal is reported to the base station controller; and the base station controller receives the uplink signal measuring results reported by the base station. Through adoption of the implementations of the invention, the uplink signal of the user equipment in the sector can be measured in the super cell, so that the base station controller can perform mobile management and other operations according to the measuring results.

This invention relates to a method for eliminating acoustic echo including the following steps: the minimum mean square algorithm of adaptive step wave band standardization, eliminating wave beams of noises to form non-linear filter to eliminate acoustic echoes. This invention applies an exclusive adaptive step non-linear filter technology to divide signals into multiple wave bands for process and alter steps adaptively according to the echo environment to eliminate echoes to increase convergence speed and reduce radiation speed to improve the ability for eliminating echo.

The invention provides a method and device for controlling audio output of a terminal. The method comprises the following steps: when it is determined that a terminal is connected with an earphone and that a call channel and a media channel need to output audio at the same time, judging whether an audio separate output mode of the terminal is opened; and if it is determined that the audio separate output mode of the terminal is opened, controlling the call channel to output call audio from the earphone and controlling the media channel to output media audio from a loudspeaker of the terminal; or controlling the call channel to output the call audio from the loudspeaker of the terminal and controlling the media channel to output the media audio from the earphone. That is, the call sound and media sound can be flexibly controlled to be output from different output channels, so that a call task and a media playing task of the terminal do not influence each other, which not only guarantees the clarity of the call sound and ensures the call quality, but also enables a user to listen to the media sound in a call process, and thus the user experience is improved.

The invention relates to a high-frequency and low-frequency combined multi-frequency antenna array. The high-frequency and low-frequency combined multi-frequency antenna array comprises a low-frequency array composed of low-frequency vibrators and a first high-frequency array, a second high-frequency array and a third high-frequency array which are each composed of high-frequency vibrators. The high-frequency and low-frequency combined multi-frequency antenna array is characterized in that the middle of an antenna is provided with a double-frequency array which is formed by coaxially nesting the low-frequency array and the first high-frequency array, the second high-frequency array and the third high-frequency array are distributed at the two sides of the double-frequency array in a shoulder-by-shoulder and staggered mode, and the spacing distance among the high-frequency vibrators in the second high-frequency array is equal to that among the high-frequency vibrators in the third high-frequency array. According to the high-frequency and low-frequency combined multi-frequency antenna array, high gain, multiple frequency bands, high isolation and high reliability of the antenna are achieved on the premise that the size is small, and a new array antenna array arrangement scheme is provided for achieving the section coverage purposes of achieving station antenna coverage, high-quality communication and data transmission ratio, saving station space, increasing customer volume and the like.

The invention provides an anti-interference circuit, a mobile terminal and a method for suppressing harmonic interference. The method comprises the following steps: acquiring a base frequency signal by detecting a frequency band in which the mobile terminal is positioned; performing frequency doubling, amplification and delay processing on the base frequency signal to obtain an anti-interference signal which has the same frequency and amplitude as an interference signal, and is reverse to the interference signal in phase; and outputting the anti-interference signal and a communication signal of the mobile terminal together in order to eliminate the interference signal in the communication signal. The base frequency signal is subjected to frequency doubling to generate the anti-interference signal which is reverse to the interference signal in phase, and the anti-interference signal is output together with the communication signal in order to offset the interference signal, so that radio frequency interference caused by higher harmonics generated by the base frequency signal in the communication signal is eliminated; normal running and conversation quality of the mobile terminal are ensured; and the user experience is improved.

The invention provides a wireless communication method and a base station controller. The wireless communication method comprises the following steps of receiving a data service request transmitted through a first network by a terminal, wherein a CS (circuit switch) domain and a PS (packet switch) domain of the terminal are attached to the first network; judging whether a data service is required to be switched to a second network or not, wherein the data transmission rate of the second network is higher than that of the first network; and when the data service is required to be switched to the second network, transmitting a switch control instruction to the terminal, and controlling the terminal to switch the PS domain from the first network to the second network. According to the wireless communication method and the base station controller, the voice service call quality can be ensured, and meanwhile, a high-speed data service is supported.

This invention involves in the mobile communication field and discloses a wireless linkage condition monitoring method and its device, which enable the effective monitoring on the wireless linkage condition in its leisure time. In this invention, after entering the leisure time, Node B and UE all stop the monitoring on the wireless linkage, the Node B cyclically starts the downlink channel launching, and the UE examines its quality. When the quality of the examined downlink channel surpasses the pre-limit, the uplink channel is launched; if the quality of the uplink channel is examined over the pre-limit by the Node B in certain time, the wireless linkage is normal; otherwise, it is out of step. UE cyclically examines the quality of the downlink channel launching, if the time of the quality of the downlink channel to surpass the limit is larger than the pre-value, the wireless linkage is determined normal; otherwise, it is determined out-of-step.

The invention discloses a call control method. When electronic equipment is in a handheld call mode, the method comprises the steps of receiving a voice signal sent by an opposite side, outputting the voice signal via a receiver of the electronic equipment and simultaneously acquiring local voice via a main microphone of the electronic equipment; acquiring sound within preset time via a secondary microphone; determining the magnitude of a first sound signal matched with the voice signal from the sound; and adjusting the volume of the receiver based on the magnitude of the first sound signal to prevent the receiver from leaking voice. Meanwhile, the invention further discloses electronic equipment. By adopting the technical solution, call voice missing can be prevented, the call quality of the electronic equipment is guaranteed, and the user experience is improved.

The present invention discloses a conversation method and a conversation device, and belongs to the communication field. The method comprises the steps of during the process of communicating with a conversation opposite end by using a network telephone, a callback telephone or an operator telephone, monitoring whether a conversation condition of communicating with the conversation opposite end by using the network telephone is superior to a preset condition; when the conversation condition is worse than the preset condition, using the callback telephone or the operator telephone to carry out the subsequent conversation; and when conversation condition is superior to the preset condition, using the network telephone to carry out the subsequent conversation. According to the present invention, by monitoring the current conversation condition during the process of using the free network telephone to communicate with the conversation opposite end, and when the conversation condition is worse than the preset condition, the callback telephone or the operator telephone having relatively stable conversation quality is switched to carry out the subsequent conversation, thereby solving the problem that the conversation quality can not be guaranteed by using the network telephone to communicate, and realizing the effect of guaranteeing the conversation quality even the network telephone is used to communicate.

The invention provides a call quality improving method and a terminal. When the terminal is in a call state, the terminal determines a call posture according to reporting information of a gravity-acceleration sensor, and after determining a call parameter corresponding to the current call posture from a plurality of the call parameters according to the call posture, carries out noise cancellation according to the call parameter. In the process, through setting different call parameters for different call postures, and calling corresponding call parameter according to the call posture in a call for calling, the purpose of guaranteeing the call quality is realized.

The invention provides a call processing method and a call processing device. The call processing method comprises the following steps of: receiving a first call request sent by a calling subscriber, wherein a called subscriber is a mobile terminal user identifier; determining a vehicle-mounted terminal identifier corresponding to the mobile terminal user identifier according to a first corresponding relation between the mobile terminal user identifier stored in a home location register (HLR) and the vehicle-mounted terminal identifier; and sending a second call request to a vehicle-mounted terminal corresponding to the vehicle-mounted terminal identifier. The method is suitable for all the vehicle-mounted terminals and all mobile terminals; according to the corresponding relation between the mobile terminal user identifier and the vehicle-mounted terminal identifier, the called user can be converted from the mobile terminal user identifier into the corresponding vehicle-mounted terminal identifier, and the calling user can be converted from the vehicle-mounted terminal identifier into the mobile terminal user identifier; and therefore, a driver can answer a call and dial a number with a corresponding mobile terminal telephone by the vehicle-mounted terminal, and the safety of a driver during driving is guaranteed.

The invention discloses a speech switching method, a terminal, a server and a system. The method comprises the following steps: connecting to a Wifi network; when a dialing operation is detected, sending a test speech to a mean opinion score (MOS) evaluation system through the Wifi network; after the MOS evaluation system performs MOS evaluation on the test speech, obtaining an evaluation result; and determining whether a speech call is made by use of the Wifi network or a GSM network according to the evaluation result.

The invention discloses an automatic gain control (AGC) device for a global system for mobile communication (GSM) digital optical fiber frequency-selecting repeater and a quick adaptive time slot method for the AGC device. The AGC device comprises a core logic processing device, a coprocessor, an analog/digital converter (ADC), a radio frequency (RF) numerical control attenuator, an RF frequency mixer and a low noise amplifier. The quick adaptive time slot method for the AGC device comprises an adaptive time slot recovering process and a quick automatic gain control process. The invention has the advantages that a time slot recovering threshold value is calculated adaptively, the steps of installing and debugging by engineering staff are reduced, a signal level input into the ADC can be adjusted to a target level value by the adjusting process, an overall adjusting period is short, signal quality is not influenced substantially, the gain balance of an uplink and a downlink which have small signal time slots can be ensured, and the connection quality of users is ensured.

The invention discloses an aeronautical communication method, an aircraft and a base station. An optimal adjacent base station is determined as a target base station from adjacent base stations of the aircraft under comprehensive consideration of a plurality of factors such as flight attitude parameter values of the aircraft, distances between the aircraft and the adjacent base stations and signal quality parameters of the adjacent base stations, so that the communication quality of airborne terminals is ensured in a flight process of the aircraft, and the problem of communication signal interruption of the airborne terminal in the flight process is solved.

The invention discloses an emergency communication host with internal and external communication functions. The emergency communication host comprises a host case, a talkback button, a talkback handle, a power circuit, a host internal and external communication circuit and a talkback handle communication circuit, wherein the power circuit comprises a rechargeable battery, an isolated single-end flyback switching power buck circuit, a power switching circuit, a battery charging circuit, a battery protection circuit, a battery voltage detection circuit, a non-isolated Boost circuit, a linear voltage stabilizing circuit and an extension voltage supply control circuit; the host internal and external communication circuit comprises a GSM module, an SIM card seat, a GSM antenna, a watchdog circuit, a reset circuit, a voice signal processing circuit, a distress signal detection circuit, a handle on-hook detection button circuit, a buzzer circuit, a low battery capacity indication circuit and a GSM network signal indication circuit. The host is convenient to install and use, high in voice response speed, high in communication quality, high in working reliability and capable of realizing 24-hour emergency calls.

The invention discloses a voice service switching method and a voice service switching device, wherein the method comprises the following steps: acquiring voice quality of a current VOLTE call; determining a measurement indifference value of a LTE cell signal according to the voice quality; determining whether the measurement indifference value satisfies requirements of sending a measurement report, if so, sending the measurement report to a network side, thereby triggering switching to a WCDMA network. With the method and the device, a problem of relatively poor call quality caused by refusing to switch to the WCDMA network even if the call quality is already very poor in the existing technology is solved, and technical effects of effectively guaranteeing call quality and improving user experience are achieved.