Oppo

A satellite communication method, a terminal, a satellite, a communication system, and a storage medium are provided, which relate to the field of communication technologies. The satellite communication method is applied to a terminal and includes: receiving (S302) a spread-spectrum signal transmitted from a satellite; and performing (S304) despreading processing on the spread-spectrum signal and obtaining notification information sent from the satellite. The spread-spectrum signal is obtained through the satellite performing spread-spectrum processing based on the notification information. The notification information is configured to notify the terminal that a satellite communication service exists.

A near-field communication method, a radio frequency chip (10), an electronic device (1), and a computer-readable storage medium are disclosed. The method includes: transmitting (S201) a carrier signal of a preset frequency, the preset frequency is different from a near-field communication frequency; receiving (S202) a radio frequency signal within a near-field communication range; and performing (S203), in a case where the radio frequency signal includes a signal from a near-field communication device within the near-field communication range in response to the transmitted carrier signal, near-field communication with the near-field communication device.

A radio frequency system (100) and an electronic device (1000). The radio frequency system includes a radio frequency transceiver module (10), a radio frequency front-end module (20), at least one antenna radiator (30), and at least one first low-noise amplification module (40). The radio frequency front-end module includes at least one transmission path (21) and at least one reception path (22). The transmission path is electrically connected to the radio frequency transceiver module, and the reception path is electrically connected to the radio frequency transceiver module. The first low-noise amplification module is connected between the antenna radiator and the reception path. When the first low-noise amplification module is in a first working state, it is conductive between the antenna radiator and the reception path, and when the first low-noise amplification module is in a first bypass state, it is short-circuited between the antenna radiator and the reception path.

A wireless communication method (200), a network device (400) and a terminal device (1000, 1100) are provided. The method includes: acquiring (S210), by a network device, target information, where the target information is information related to a connection between a first terminal and a second terminal; where the first terminal and the second terminal are connected via a first interface, and the first interface is not an interface defined by a 3GPP protocol.

The disclosure related to a RF front-end device, a RF system and an electronic device. The RF front-end device is configured with an antenna terminal, a control terminal for receiving multiple control signals, and multiple input terminals for receiving multiple RF signals. The RF front-end device includes: a first switch unit having multiple first terminals connected to the multiple input terminals respectively; a power amplification unit, having an input terminal connected to a second terminal of the first switch unit, and an output terminal connected to the antenna terminal; and a control unit, where the control unit is connected to each of the control terminal and the power amplification unit, and is configured to control, based on a received target control signal, the power amplification unit to perform power amplification processing on a received target RF signal. The target control signal is one of the multiple control signals, and frequency bands of the multiple RF signals are different. This can increase the multiplexing efficiency of the power amplifier unit, enhance the integration level of RF front-end device, and achieve a low cost.

The present application relates to a radio frequency system and a communication device. The radio frequency system may include: a transceiver circuit (10); a receiving circuit (20); a first coupling circuit (30), configured to support coupling of a transmit signal on a transceiver path and coupling of a reflected signal of the transmit signal, and output a first forward coupled signal and a first backward coupled signal; a second coupling circuit (40), configured to selectively turn on the receiving path and the coupling path, support coupling of the first forward coupled signal and coupling of the reflected signal, and output a second forward coupled signal and a second backward coupled signal; and, a processing circuit (50), configured to determine second impedance information of the receiving path according to the second forward coupled signal and the second backward coupled signal.

The present disclosure relates to a communication device and a communication control method. The communication device includes a radio frequency transceiver, multiple radio frequency modules, a radio frequency power supply, and an electric power supply. When the communication device is configured to support a standalone mode, the radio frequency power supply outputs a radio frequency voltage to individual radio frequency modules ready for transmission that are conductively connected to one transmission channel group, the radio frequency voltage being determined based on the power information of each radio frequency module. This can meet the higher power demand and greater radio frequency power consumption of each radio frequency module ready for transmission in the standalone mode. When the communication device is configured to support a combined mode of frequency bands of different transmission channel groups, the radio frequency power supply outputs the radio frequency voltage to a radio frequency module ready for transmission that are conductively connected to one transmission channel group, and the electric power supply outputs a power supply voltage to other radio frequency modules ready for transmission that are conductively connected to another transmission channel group. Different radio frequency modules simultaneously transmit radio frequency signals from different channel groups under the power supply of different power supplies, which can support the non-standalone mode and also the DSDA mode.

Provided in embodiments of the present application are a wireless communication method, terminal device and network device. The method includes: determining (210), by a network device (500), a plurality of slots starting from a first slot, wherein the plurality of slots are used for transmitting a first channel, and a number of time domain symbols available for transmitting the first channel within each slot of the plurality of slots is greater than or equal to a predetermined value, wherein a physical resource position for transmitting the first channel in each slot of the plurality of slots meets a constraint condition, wherein the first channel is a physical uplink control channel, PUCCH, and the first channel is repeatedly transmitted in the plurality of slots.

The disclosure provides a RF system and an electronic device. The RF system includes first and second RF transceiver modules, first and second switch units, a first front-end circuit, first and second filters, and first and second antenna radiators. The first and second RF transceiver modules are respectively configured for transmission and receipt a first network signal of a first frequency band and a second network signal of a second frequency band. Two selection terminals of the first switch unit are electrically connected to the first and second RF transceiver modules respectively. The first front-end circuit is electrically connected between the first switch unit and the first filter, and between the first switch unit and the second filter. The first antenna radiator is electrically connected to the other terminal of the first filter. The second antenna radiator is electrically connected to the other terminal of the second filter. According to the disclosure, the architecture of the RF system can be simplified and the size of the RF system can be reduced, while supporting multiple network signals.

Provided are a radio frequency (RF) system, an impedance tuning method, and an electronic device. The RF system includes a first RF path, a second RF path, a first power detector, and a processor. The first RF path includes a first coupler and a first antenna radiator. The second RF path includes a second antenna radiator. The first power detector is electrically connected with the first coupler, and used to obtain, through the first coupler, a first coupled power received by the first antenna radiator from the second antenna radiator when the second antenna radiator transmits an antenna signal. The processor is configured to obtain a first voltage standing wave ratio (VSWR) based on the first coupled power, and generate, when the first VSWR is outside a preset VSWR range, a first impedance adjustment instruction used to make the first VSWR fall within the preset VSWR range. It enables tuning for antenna impedance matching.