H04L12/40156

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.

Method for configuring control units

Method for configuring a functionality of real and/or simulated control units, comprising a functionality belonging to a functionality class, such that the functionality has one or more functions and parameters dependent on the functionality class. The functionality is further assigned to at least one control unit. The functionality class has categories, including an else category and a default category and its functionalities each belong to a category. A predetermined value is stored for parameter and if the functionality is assigned to the default category, the predetermined value is adopted for the parameter. If the predetermined value of the parameter changes, the change is adopted for all functionalities which have already been assigned to the default category. And the control unit assigned to the functionality is configured with the function and the values of the parameters of the functionality.

COMMUNICATION APPARATUS, COMMUNICATION METHOD, PROGRAM, AND COMMUNICATION SYSTEM
20200012615 · 2020-01-09 ·

The present disclosure relates to a communication apparatus, a communication method, a program, and a communication system that enable more reliable communication.

An I3C master receives a max read length and a max write length from an I3C slave. Then, when transmitting/receiving data to/from the I3C slave, the I3C master controls transmission/reception of the data so that the data to be transferred in one data transfer has a data length equal to or shorter than the max read length and the max write length, and transmits transfer length information indicating the data length of the data to be transferred, prior to data transfer of the data. The present technology is applicable to a bus IF, for example.

Method for transmitting data via a serial communication bus, bus interface, and computer program
10530606 · 2020-01-07 · ·

An extension of the existing CAN FD data transmission protocol. The extension enables the use of the IPv6 protocol for the CAN bus. The CAN FD protocol is further developed in an incompatible way. One modification measure relates to the lengthening of the Data Field, which is positioned in the transmission frame after an Arbitration Field. An arbitrary number of bytes can be entered in the extended Data Field within a specified upper limit. Since the Data Field is transmitted at a higher bit rate field than the Arbitration Field, the data throughput is increased dramatically.

METHOD FOR RAPIDLY FLASHING SENSOR NODES VIA AN ETHERNET NETWORK
20240073060 · 2024-02-29 ·

A method for rapidly flashing sensor nodes via an Ethernet network having a head node and a plurality of associated nodes. The method includes: determining the number of active nodes by a head node; classifying the identified nodes into multiple classifications to prioritize the Ethernet network communication by the head node; receiving reservation requests from at least some of the plurality of nodes by the head node; assigning to one or more nodes in the upcoming communication window time slots in response to reservation requests based on a node priority and the priority assigned to the nodes in accordance with their classification. A necessary download data rate is then determined and, a current bus utilization is ascertained by calculating the time difference of a final beacon and the number of nodes, and the bus cycle of the Ethernet network is optimized in terms of the necessary download data rate.

Shaping Traffic on PLCA-Enabled 10SPE Networks

A 10SPE network node includes a processor, a memory, instructions in the memory configured to cause the processor to generate data to be sent to other nodes, and a network stack. The network stack includes circuitry configured to delay transmission of data in a sending slot in a transmission cycle on a 10SPE network based upon a bandwidth sharing scheme.

Communication control device and communication system

Provided are a communication control device and a communication system capable of detecting message transmission in the case where an invalid device transmits a message to a common communication line. A monitoring device decides a reference time point t0 for periodical message transmission by an ECU, decides multiple scheduled transmission time points t1, t2, . . . obtained by adding a period corresponding to an integer multiple of a transmission cycle T of a message to the reference time point t0, and decides that a predetermined period including each of the scheduled transmission time points is a permission period for message transmission. The monitoring device determines whether or not a detected message on a CAN bus has been transmitted during the permission period. If determined that transmission of an invalid message is not permitted, the monitoring device performs processing of causing the ECU which receives the message to discard the message.

Synchronous slave-to-slave communications

Disclosed herein are systems and techniques for slave-to-slave communication in a multi-node, daisy-chained network. Slave nodes may provide or receive upstream or downstream data directly to/from other slave nodes, without the need for data slots first to route through the master node.

IN-DATAGRAM CRITICAL-SIGNALING USING PULSE-COUNT-MODULATION FOR I3C BUS

Systems, methods, and apparatus are described that enable a device to indicate availability of priority data to be communicated over a half-duplex serial bus without waiting for an ongoing transmission to be completed. In-datagram critical signaling is accommodated without breaking backward compatibility. A method implemented at a transmitting device coupled to a serial bus includes transmitting a data byte over a first line of the serial bus to a receiving device in accordance with a clock signal transmitted by a master device on a second line of the serial device, detecting a first pulse on the first line of the serial bus during a cycle of the clock signal designated for an acknowledgement or negative acknowledgement by the second device, and processing an alert indicated by the first pulse.

Facilitating determination of transmission type via demodulation reference signal patterns

A method facilitating determination of transmission type via demodulation reference signal (DMRS) patterns is provided. In one example, the method can include generating information according to a protocol for receipt by a mobile device, wherein the information is indicative of a defined transmission type for the mobile device and wherein the protocol employs demodulation reference signal patterns; and transmitting the information to the mobile device. In some embodiments, the protocol comprises a first protocol in which the information comprises a first message transmitted in a first set of resources to communicate to the mobile device a first downlink control information (DCI) format associated with a first transmission type, and wherein the protocol further comprises a second protocol in which the information comprises a second message transmitted in a second set of resources to communicate to the mobile device a second DCI format associated with a second transmission type.