The present invention discloses a data transmission method and apparatus, and a user equipment. The method includes: classifying, by using a transmission time interval TTI as a classification basis, TTIs on a carrier in a cell into a time division multiplexing TDM TTI and a code division multiplexing CDM TTI; and sending, to a user equipment UE, control information carrying a classified result, so as to instruct the UE to send uplink data according to the classified result and a data scheduling type of the UE in the TDM TTI or the CDM. By using the foregoing technical solution, a data transmission resource can be well saved and scheduling flexibility can be improved.

A transmission device according to the disclosure includes a power supply section, a first transmitter, and a controller. The power supply section includes a voltage generator that generates a power supply voltage, and a load section configured to be able to change a load current at the voltage generator. The first transmitter has a first operation mode and a second operation mode, and transmits a first signal on the basis of the power supply voltage. The controller controls an operation of the load section when an operation mode of the first transmitter transitions between the first operation mode and the second operation mode.

A transmission device according to the disclosure includes a power supply section, a first transmitter, and a controller. The power supply section includes a voltage generator that generates a power supply voltage, and a load section configured to be able to change a load current at the voltage generator. The first transmitter has a first operation mode and a second operation mode, and transmits a first signal on the basis of the power supply voltage. The controller controls an operation of the load section when an operation mode of the first transmitter transitions between the first operation mode and the second operation mode.

A method for Near Field Communication (NFC) based interactions can be implemented by a device when it is placed near an NFC tag and receives an electromagnetic signal associated with the NFC tag. The device retrieves the identifier of the NFC tag from the electromagnetic signal and, based on the identifier, the device can generate a first command. Furthermore, the device can identify a qualifying event, such as a predetermined orientation of the device. The device then generates a second command in response to the identification of the qualifying event. Each of the first and second command can cause a change in settings of the device, switching an operating mode of the device, activating/deactivating an application, enabling/disabling a feature of an application, and sending an instruction to a remote electronic device.

A transmission device according to the disclosure includes a power supply section, a first transmitter, and a controller. The power supply section includes a voltage generator that generates a power supply voltage, and a load section configured to be able to change a load current at the voltage generator. The first transmitter has a first operation mode and a second operation mode, and transmits a first signal on the basis of the power supply voltage. The controller controls an operation of the load section when an operation mode of the first transmitter transitions between the first operation mode and the second operation mode.

A transmission device according to the disclosure includes a power supply section, a first transmitter, and a controller. The power supply section includes a voltage generator that generates a power supply voltage, and a load section configured to be able to change a load current at the voltage generator. The first transmitter has a first operation mode and a second operation mode, and transmits a first signal on the basis of the power supply voltage. The controller controls an operation of the load section when an operation mode of the first transmitter transitions between the first operation mode and the second operation mode.

A method for Near Field Communication (NFC) based interactions can be implemented by a device when it is placed near an NFC tag and receives an electromagnetic signal associated with the NFC tag. The device retrieves the identifier of the NFC tag from the electromagnetic signal and, based on the identifier, the device can generate a first command. Furthermore, the device can identify a qualifying event, such as a predetermined orientation of the device. The device then generates a second command in response to the identification of the qualifying event. Each of the first and second command can cause a change in settings of the device, switching an operating mode of the device, activating/deactivating an application, enabling/disabling a feature of an application, and sending an instruction to a remote electronic device.

A driver circuit includes a first inverter, a bias-control circuit, and a second inverter. The first inverter, which is connected between a first supply voltage and ground, receives an input data signal and generates an inverted version of the input data signal. The bias-control circuit, which is connected between a second supply voltage and the first inverter, receives the inverted version of the input data signal and a bias signal, and generates a level-shifted data signal based on the inverted version of the input data signal, the bias signal, and the second supply voltage. The bias-control circuit reduces a difference between voltage levels of the second supply voltage and the inverted version of the input data signal. The second inverter is connected between the second supply voltage and ground, and further connected to the bias-control circuit and first inverter and generates an output data signal.

A driver circuit includes a first inverter, a bias-control circuit, and a second inverter. The first inverter, which is connected between a first supply voltage and ground, receives an input data signal and generates an inverted version of the input data signal. The bias-control circuit, which is connected between a second supply voltage and the first inverter, receives the inverted version of the input data signal and a bias signal, and generates a level-shifted data signal based on the inverted version of the input data signal, the bias signal, and the second supply voltage. The bias-control circuit reduces a difference between voltage levels of the second supply voltage and the inverted version of the input data signal. The second inverter is connected between the second supply voltage and ground, and further connected to the bias-control circuit and first inverter and generates an output data signal.

The present disclosure provides various modifications to existing techniques for transmitting ACK and/or NACK in an narrow band communications system. For example, in a first aspect, an apparatus receives a downlink transmission and transmits a single tone ACK on an ACK channel using time-spreading. In another aspect, an apparatus determines whether an ACK has been received from a UE within a threshold amount of time, and when an ACK has not been received from the UE for at least the threshold amount of time, transmitting an indication to the UE to transmit regarding the ACK.