A transmission apparatus including: a transport stream generation unit configured to generate a transport stream in which a first transport packet containing transport media in a payload and a second transport packet containing information about the transport media in a payload, are time-division multiplexed; a transport stream transmission unit configured to transmit the transport stream to a receiver through a predetermined transmission channel; and a time information insertion unit configured to insert time information for allowing the receiver to obtain decoding time and/or presentation time into the first transport packet or the second transport packet.

Slave units of a mobile communication system each determine (S907), out of a predefined sliding codebook of Q unique radio frame configurations, a radio frame configuration for communicating with user equipments, and transmit (S907), to a master unit of a cluster which the slave units belong to, a request to use the determined radio frame configuration. The predefined sliding codebook comprises sub-codebooks each grouping together radio frame configurations of the Q unique radio frame configurations, that share the same downlink-to-uplink subframe ratio but with a phase offset of the radio frame configurations. The master unit identifies (S909) a common sub-codebook out of the sub-codebooks of the predefined sliding codebook, that comprises most of the determined radio frame configurations indicated in the requests received from the slave units, and, for each of the determined radio frame configurations, selects (S911, S915, S917, S921) a radio frame configuration out of the Q unique radio frame configurations, that corresponds to a sub-codebook of the determined radio frame configuration and minimizes an average misalignment with a radio frame configuration of the common sub-codebook.

Slave units of a mobile communication system each determine (S907), out of a predefined sliding codebook of Q unique radio frame configurations, a radio frame configuration for communicating with user equipments, and transmit (S907), to a master unit of a cluster which the slave units belong to, a request to use the determined radio frame configuration. The predefined sliding codebook comprises sub-codebooks each grouping together radio frame configurations of the Q unique radio frame configurations, that share the same downlink-to-uplink subframe ratio but with a phase offset of the radio frame configurations. The master unit identifies (S909) a common sub-codebook out of the sub-codebooks of the predefined sliding codebook, that comprises most of the determined radio frame configurations indicated in the requests received from the slave units, and, for each of the determined radio frame configurations, selects (S911, S915, S917, S921) a radio frame configuration out of the Q unique radio frame configurations, that corresponds to a sub-codebook of the determined radio frame configuration and minimizes an average misalignment with a radio frame configuration of the common sub-codebook.

Methods and apparatuses for handling collision between sidelink feedback and sidelink data in a wireless communication system are disclosed herein. In one method, a User Equipment (UE) is (pre-)configured to perform one or more sidelink transmissions on multiple carriers, wherein the UE is able to transmit a first number of carriers among the multiple carriers at the same time. The UE selects a first resource for transmitting a first sidelink transmission in a first slot on a first carrier. The UE derives a second resource for transmitting a PSFCH delivering a feedback in a second slot on a second carrier, wherein the second slot is at least partly overlapping with the first slot in a time domain. The UE determines whether to prioritize either the PSFCH or the first sidelink transmission based on a rule when the number of carriers which the UE identifies to transmit in the overlapped slot exceeds the first number of carriers.

A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

An apparatus and method for generating broadcast signal frame using layered division multiplexing are disclosed. The apparatus includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.

An apparatus and method for generating broadcast signal frame using layered division multiplexing are disclosed. The apparatus includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame including a bootstrap and a preamble using the time-interleaved signal.

A method includes: obtaining, by a first communications device, a first carrier, where the first carrier is used to transmit a first message and a second message; obtaining, by the first communications device, a first transmission resource and a second transmission resource of the first carrier, where the first transmission resource is used to send the first message, the second transmission resource is used to send the second message, and the first transmission resource and the second transmission resource are different transmission resources; sending, by the first communications device, the first message on the first transmission resource by using a first wireless access technology; and sending, by the first communications device, the second message on the second transmission resource by using a second wireless access technology, where the first wireless access technology and the second wireless access technology are different inter-device direct communications technologies.

Devices, systems, and methods for event device system operation are described herein. In some examples, one or more embodiments include a controller comprising a memory and a processor to execute instructions stored in the memory to transmit, to a plurality of event devices via a power line communications (PLC) protocol, a synchronization message according to a predetermined schedule to cause the plurality of event devices to synchronize timing of the plurality of event devices with the controller, transmit, to the plurality of event devices via the PLC protocol, a command according to the predetermined schedule, and receive, from the plurality of event devices via the PLC protocol, a response to the command according to the predetermined schedule.