35results about How to "Avoid Communication Anomalies" patented technology

The embodiment of the invention provides a control method and an electronic device. After the electronic device obtains first parameters corresponding to a first antenna and second parameters corresponding to a second antenna, the electronic device determines performance relations between the first antenna and the second antenna according to the first parameters and the second parameters. When the performance of the first antenna is superior to that of the second antenna, the first antenna is taken as a master antenna; the second antenna is taken as an assist antenna; the assist antenna is used for assisting the master antenna to send and receive signals; if the performance of the second antenna is superior to that of the first antenna, the first antenna is taken as the assist antenna; the second antenna is taken as the master antenna; in this way, when the radiation field of one antenna is shielded, the electronic device can switch the master and assist relations between the two antennas; therefore, the electronic device can send and receive data normally; and the communication stability of the electronic device can be ensured.

The application provides a method and device for selecting a link, and is applied to a vehicle-mounted access point AP in a wireless grid Mesh network. The vehicle-mounted AP is used for starting a first frequency section and a second frequency section, the link is established by the vehicle-mounted AP, a plurality of detected trackside APs of the first frequency section and a plurality of detected trackside APs of the second frequency section, and the first frequency section is a preferential frequency section. The method comprises the following steps: obtaining first signal strength of which the signal strength is highest from the signal strength of the detected trackside APs of the first frequency section; obtaining second signal strength of which the signal strength is highest from the signal strength of the detected trackside APs of the second frequency section; selecting one of the links corresponding to the first signal strength and the second signal strength to transmit data according to the first signal strength and the second signal strength. According to the method and the device disclosed by the application, the anti-interference property of a wireless link can be improved, and besides a communication failure caused by the ring formation of the links can be avoided.

The invention discloses a firmware upgrading method for equipment. The firmware upgrading method for the equipment includes the following steps of when a firmware upgrading instruction is received, determining other equipment associated with the current equipment, obtaining upgrading information of the current equipment, and according to the upgrading information of the current equipment, controlling firmware of the current equipment and firmware of the other equipment for upgrading. The invention also discloses the equipment, a firmware upgrading device for the equipment and a storage medium.The operational reliability of a system composed of a large quantity of the equipment is improved.

The invention discloses an IAB node configuration method and a communication device. The method comprises the steps that a target IAB host receives first information from a source IAB host and sends first configuration information to the source IAB host; the IAB node comprises an MT and a DU, the first configuration information is determined according to the first information and is used for indicating the transmission direction of a time domain resource configured for the MT by the target IAB host, and the first information is used for indicating one or more of the following four kinds of information: when the MT is supported or not supported to receive data, the DU sends the data; the DU receives the data while supporting or not supporting the MT to receive the data; the DU sends the data while supporting or not supporting the MT to send the data; the DU receives the data while supporting or not supporting the MT to send the data. The first information can be duplex capability information, the first configuration information takes the first information as the premise, and in the cross-host switching process of the IAB node, the transceiving conflict between the DU and the MT can be avoided.

The invention provides a communication network delay jitter smoothing method, device and system. The method comprises the steps that a receiving module clears a forward delay threshold and a backward delay threshold at the beginning of initialization time; each business flow fragment is performed within the initialization time; and when the maximum value of the forward delay real-time value corresponding to the current business flow fragment and the backward delay threshold corresponding to the current business flow fragment is greater than the current value of the forward delay threshold, the current value of the forward delay threshold is replaced by the maximum value. Therefore, the delay threshold after the end of initialization is determined at the end of initialization and applied to delay compensation so that bidirectional asymmetric delay jittering can be substantially reduced, and the problem of abnormal user communication caused by excessive jittering can be prevented.

Provided are: a communication system for connecting a vehicle and a power-supply device by a charging cable which houses a power-supply line and a control line therein, and capable of suppressing the occurrence of communication abnormalities while keeping noise imparted to the power-supply line at or below a stipulated upper limit, in communication such as inband communication for transmitting and receiving a communication signal with the control line as the medium therefor; a communication device; a power-supply device; and a vehicle. A power-supply device (2) reads the settings pertaining to the output of each frequency stored in advance in a memory unit (221b), and performs mapping processing for adjusting an output waveform pertaining to communication signal transmission to the amplitude set in advance for each frequency, on the basis of the read settings. In addition, by subjecting the mapped communication signal to an inverse Fourier transform, the power-supply device (2) converts the communication signal expressed as digital data in a frequency region to digital data in a time region, and also D/A converts the same into analog data.

The invention provides a method for blocking access to an abnormal network cell, a mobile terminal and a storage medium. The method comprises the steps of: identifying the network cell in the trackingarea when accessing the network; Judging whether the network cell is an abnormal network cell according to a preset recording table; A list of abnormal network cell is recorded in that record table;If so, access to the abnormal network cell is blocked. A main object of that invention is to avoid access to abnormal network cell and to overcome the problem of abnormal network communication.

The invention discloses a communication method and device, which belongs to the technical field of communication. The communication method comprises the steps of: receiving first input of a user, wherein the first input comprises input requesting audio and video conversation; and in response to the first input, acquiring state information of a plurality of first servers corresponding to a plurality of first applications, determining a target server in the plurality of first servers based on the state information, controlling a target application corresponding to the target server in the plurality of first applications, and sending an audio and video call request to the target server, wherein the plurality of first applications are local applications supporting audio and video calls. According to the communication method and the device, the conditions of call interruption or picture damage and blockage in the audio and video call process can be avoided.

A synchronous communication method, the method includes: a first terminal acquires first configuration information, and the first configuration information includes a first parameter; the first terminal determines the current time in a device-to-device D2D communication system according to a global navigation satellite system (GNSS) clock Corresponding transmission time slot; the first terminal judges whether the current moment is the synchronization information transmission time according to the transmission time slot and the first parameter; if so, the first terminal sends the direct link synchronization information at the synchronization information transmission time, and the direct connection link The synchronization information carries indication information, the direct link synchronization information is used to synchronize the second terminal with the first terminal, and the indication information is used to indicate to the second terminal that the first terminal is a synchronization source using a GNSS clock.

The invention provides a system for testing a wired measurement and control interface of a deep space exploration surrounding device to a lander. The system comprises a main control module, an OC gate instruction receiving module, a voltage remote measurement simulation module, a thermistor simulation module, an RS422 communication simulation module, a heater simulation module and a power supply module. The OC gate instruction receiving module, the voltage remote measurement simulation module, the thermistor simulation module, the RS422 communication simulation module and the heater simulation module are all connected to the main control module; and the OC gate instruction receiving module, the voltage remote measurement simulation module, the thermistor simulation module, the RS422 communication simulation module and the heater simulation module are all connected to the power supply module. According to the invention, the function of the surround device to the lander wired measurement and control interface can be tested before the surround device is in butt joint with the lander electrical interface, the correctness of the interface and the coordination of information interaction are fully verified, and abnormal communication or potential safety hazards between the two devices caused by mismatching of the interfaces after the two devices are in butt joint are avoided.

The invention discloses a group call processing control method for a railway dedicated mobile terminal, which comprises the following steps: when a user initiates a point-to-point call/group call/broadcast or answers the point-to-point call, when the mobile terminal receives a channel allocation message from a Um port and joins in the channel allocation message and when the user joins in the groupcall, in the process that the wireless resource management layer joins the group call service channel, setting the group call join permission state to be FALSE; when a user hangs up a group call/broadcast, ending a point-to-point call or quitting a group call/broadcast, quitting from a traffic channel (TCH), entering an idle state and residing in a serving cell, starting up to monitor the BCCH, the CCCH and the NCH, and when a handheld terminal monitors a complete NCH notification period on the NCH, adding the group call into allowable state. According to the method, the problem that the handheld station joins in the released group call channel in the call can be solved, and the problem that the group call notification parameters of the network on the FACCH are wrong under some conditionscan be solved.

The invention relates to a two-wire system power carrier communication device, which comprises a carrier system power supply bus, a signal coupling circuit, a signal conversion circuit, an MCU, a power conversion circuit and a subsystem power supply conversion circuit, and is characterized in that the signal coupling circuit is directly connected with the carrier system power supply bus, the signal conversion circuit is directly connected with the signal coupling circuit and the MCU, the power conversion circuit is directly connected with a carrier system power supply bus, and the subsystem power supply conversion circuit is directly connected with the power conversion circuit; a two-wire system power supply carrier communication method comprises the following steps: step 1, carrier system power supply bus signal stripping; step 2, signal conversion; and step 3, MCU processing. The invention provides a high-speed, stable and long-distance transmission communication device and method.

The invention provides a WIFI communication ARP fool-proof control method based on a POS. the method comprises the following steps of S, starting POS; S2, judging whether to use WIFI communication ornot, if yes, entering the step S3, and if not, timing for a first preset time and repeating the step S2; S3, judging whether the WIFI connection is successful or not, if yes, entering the step S4, andif not, entering the step S2; S4, judging whether the IP address is successfully acquired or not, if yes, entering the step S5, and if not, entering the step S2; and S5, timing a second preset time to send a Gratiitoues ARP to the WIFI wireless router, and requesting the physical address of the IP address of the POS. The invention further provides a POS system with the WIFI communication ARP fool-proof function and a computer readable storage medium.