Patent classifications
H04L12/4035
Data transmission method and automation-communication network
In an automation-communication network, at least one distribution node comprises input/output interfaces each connected to at least one network segment. In a first network segment a first subscriber and in a second network segment a second subscriber are arranged. Data are exchanged between the first and the second subscriber by telegrams realized as scheduled telegrams and unscheduled telegrams. The distribution node receives an unscheduled telegram on an input/output interface and sends an unscheduled telegram on a further input/output interface. The distribution node determines a transmission duration for transmission of the unscheduled telegram. The distribution node transmits the unscheduled telegram. Prior to transmission, the distribution node deposits a first telegram information in a data field. The distribution node fragments the unscheduled telegram if the telegram cannot be transmitted within a time slot. Prior to transmission of the unscheduled telegram, the distribution node enters a second telegram information into the data field.
System and methods for efficiently communicating between low-power devices
A system includes a first electronic device that activates a first receiver according to a communication schedule that includes a plurality of frames. Each frame is organized according to a grid including a plurality of cells, wherein the cells are associated with a plurality of communication channels and a plurality of time slots. The system also includes a second electronic device that communicates with the first electronic device by transmitting a wake-up packet during a first time slot on a first communication channel. The first time slot and the first communication channel are located at a known position of a respective grid in each frame of the communication schedule. The first electronic device performs an operation based on the wake-up packet after receiving the wake-up packet. The second electronic device also receives a first acknowledgment packet associated with the wake-up packet.
COMMUNICATION SYSTEM AND METHOD FOR CONTROLLING AND MONITORING AT LEAST ONE PERIPHERAL
Systems and methods are provided for controlling and monitoring a peripheral in an aircraft that includes a master module connected to each slave module. Each slave module is disposed around a controlled peripheral and is connected to a port of the master module by a bidirectional link. The master module sends data frames comprising the value of a counter. Each slave module reads the value of the counter included in the data frame received, updates a counter with the value read, checks whether the value of the updated counter corresponds to a time-period index associated with the slave module and if so transfers a data frame to the master module. The master module selects, from a table comprising time period indices and identifiers, the port connecting the master module to the slave module the identifier of which is associated with the time-period index that corresponds to the counter's value.
Two-wire communication systems and applications
Disclosed herein are two-wire communication systems and applications thereof. In some embodiments, a slave node transceiver for low latency communication may include upstream transceiver circuitry to receive a first signal transmitted over a two-wire bus from an upstream device and to provide a second signal over the two-wire bus to the upstream device; downstream transceiver circuitry to provide a third signal downstream over the two-wire bus toward a downstream device and to receive a fourth signal over the two-wire bus from the downstream device; and clock circuitry to generate a clock signal at the slave node transceiver based on a preamble of a synchronization control frame in the first signal, wherein timing of the receipt and provision of signals over the two-wire bus by the node transceiver is based on the clock signal.
Method and apparatus for handling contention resolution for a random access procedure in a wireless communication system
Methods and apparatuses for a User Equipment (UE) to monitor the Physical Downlink Control Channel (PDCCH) appropriately in order to reduce power consumption and perform Contention Resolution for a Random Access (RA) procedure in a Non-Terrestrial Network (NTN). The UE can perform a Msg3 transmission during a RA procedure in a NTN and start a RA contention resolution timer in the first symbol after the end of the Msg3 transmission plus a timing offset. In response to expiry of the RA contention resolution timer, the UE determines whether to consider Contention Resolution not successful based on at least whether the RA contention resolution timer expires during a time duration of the timing offset after a Msg3 retransmission.
Two-wire communication systems and applications
Disclosed herein are two-wire communication systems and applications thereof. In some embodiments, a slave node transceiver for low latency communication may include upstream transceiver circuitry to receive a first signal transmitted over a two-wire bus from an upstream device and to provide a second signal over the two-wire bus to the upstream device; downstream transceiver circuitry to provide a third signal downstream over the two-wire bus toward a downstream device and to receive a fourth signal over the two-wire bus from the downstream device; and clock circuitry to generate a clock signal at the slave node transceiver based on a preamble of a synchronization control frame in the first signal, wherein timing of the receipt and provision of signals over the two-wire bus by the node transceiver is based on the clock signal.
METHOD AND APPARATUS FOR ALLOCATING TRANSMISSION OPPORTUNITIES IN VEHICLE NETWORK
An operation method of a first end node constituting an Ethernet-based vehicle network includes receiving a first beacon from a second end node, the beacon including first configuration information of a first main-cycle including a plurality of sub-cycles each of which includes N time slots; transmitting a signal in a time slot corresponding to an identifier of the first end node among the N time slots within a sub-cycle # k of the plurality of sub-cycles; and transmitting a signal in a time slot corresponding to the identifier of the first end node among the N time slots in a sub-cycle # (k+1) consecutive with the sub-cycle # k of the plurality of sub-cycles.
ACTIVE ATTACK DETECTION IN AUTONOMOUS VEHICLE NETWORKS
Systems, methods, computer-readable storage media, and apparatuses to provide active attack detection in autonomous vehicle networks. An apparatus may comprise a plurality of electronic control units communicably coupled by a network, and logic, at least a portion of which is implemented in hardware, the logic to: receive an indication from a first electronic control unit (ECU) of the plurality of ECUs specifying to transmit a first data frame via the network, determine, based on a message identifier (ID) of the first ECU, whether a transmit window for the first ECU is open, and permit the first ECU to transmit the first data frame via the network based on a determination that the transmit window for the first ECU is open.
Method for isochronous data communication in a realtime ethernet data network
In order to be able to better and more flexibly utilize the available isochronous bandwidth of a realtime capable Ethernet network protocol, it is provided that a number (k) of transmission cycles (Z1, . . . , Zk) are combined to create a slow transmission cycle (ZL) and two network nodes (M, S1, . . . , Sn) communicate with one another in this slow transmission cycle (ZL) in that data communication of these two network nodes (M, S1, . . . , Sn) is provided in each kth transmission cycle (Z), and/or a transmission cycle (Z) is divided into a plurality (j) of rapid transmission cycles (ZS) and two network nodes (M, S1, . . . , Sn) communicate with one another in this rapid transmission cycle (ZS) in that data communication of these two network nodes (M, S1, . . . , Sn) is provided j times in each transmission cycle (ZS).
Access method with access slots and priority resolution
A time-division multiplex method for serial data transmission includes executing a first priority resolution for messages to be transmitted by a plurality of stations on a communications channel and which are assigned to a first prefix, and transmitting a first data frame by a first station of the multiplicity of stations, wherein the first station transmits a first message with the first prefix and with the highest priority, during a predefined first access slot. The method also includes executing a second priority resolution for messages to be transmitted on the communications channel and which are assigned to a second prefix, and then transmitting of a second data frame by a second station of the plurality of stations, where the second station transmits a second message with the second prefix and with the highest priority of the second priority resolution, during a predefined second access slot.