A method and system provides for execution of calibration cycles from time to time during normal operation of the communication channel. A calibration cycle includes de-coupling the normal data source from the transmitter and supplying a calibration pattern in its place. The calibration pattern is received from the communication link using the receiver on the second component. A calibrated value of a parameter of the communication channel is determined in response to the received calibration pattern. The steps involved in calibration cycles can be reordered to account for utilization patterns of the communication channel. For bidirectional links, calibration cycles are executed which include the step of storing received calibration patterns on the second component, and retransmitting such calibration patterns back to the first component for use in adjusting parameters of the channel at first component.

According to certain embodiments, a method (500) by a wireless device (110) includes receiving information relating to a Narrowband Secondary Synchronization Signal (NSSS) transmit diversity scheme. The information indicates a number of NSSS occasions that use different NSSS transmit diversity configurations. Based on the NSSS transmit diversity scheme, at least one measurement is performed across NSSS occasions.

Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.

A transport framework for heterogeneous data streams includes session management module and a connection management module. The session management module is configured to receive a request to establish a first stream that is used for transmitting or receiving data, where the request includes an express indication as to whether the first stream is reliable or unreliable; construct a first data frame based on application data; handoff the first data frame to the connection management module; and maintain a record for the first data frame that includes whether the first data frame is successfully transmitted to the receiver. The connection management module is configured to receive the first data frame of the first stream from the session management module; receive a second frame from the session management module; encapsulate the first data frame and the second frame in a packet; and transmit the packet to the receiver using an unreliable protocol.

Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.

A multi-chip module (MCM) includes a first integrated circuit (IC) chip to receive first data. The first IC chip includes a first transfer interface to transmit the first data off the first IC chip. A second IC chip includes an input interface to receive the first data from the first IC chip. The second IC chip includes switching circuitry to selectively forward the first data to one of a first output interface or a second output interface. The first output interface is communicatively coupled to a third IC chip, while the second output interface is configured to output the first data from the MCM.

Interface devices and systems that include interface devices are disclosed. In some implementations, a device includes a transceiver configured to transmit and receive data, a lane margining controller in communication with the transceiver and configured to control the transceiver to transmit, through a margin command, to an external device, a request for requesting a state of an elastic buffer of the external device, and control the transceiver to receive the state of the elastic buffer of from the external device, and a port setting controller adjust a clock frequency range of a spread spectrum clocking scheme based on the state of the elastic buffer.

Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.

According to certain embodiments, a method (500) by a wireless device (110) includes receiving information relating to a Narrowband Secondary Synchronization Signal (NSSS) transmit diversity scheme. The information indicates a number of NSSS occasions that use different NSSS transmit diversity configurations. Based on the NSSS transmit diversity scheme, at least one measurement is performed across NSSS occasions.

Provided are a device synchronization method and apparatus, a device, and a storage medium. The device synchronization method includes: in response to determining that a second device does not receive a first data packet, determining a target time cycle for sending data packets by the second device based on a preset cycle adjustment parameter and a preset time slice length; determining whether the second device receives a second data packet sent by the first device based on the time slice length and the target time cycle of the second device; and in response to determining that the second device receives the second data packet sent by the first device, determining a time point for sending a data packet next time by the second device according to data packet information of the first device, achieving cycle synchronization of the second device in a preset synchronization cycle time period.