Patent classifications
H04L12/4035
INFORMATION TRANSMISSION NETWORK AND CORRESPONDING NETWORK NODE
The network according to the invention, including functional nodes connected in series by information transmission means, in which the information assumes the form of discrete messages propagating from node to node in the network, is characterized in that the information transmission means between the nodes are bidirectional to allow information to propagate in both circulation directions of the network, and each node includes at least one first and second associated information input/output port, connected by corresponding information transmission means to neighboring nodes and the operation of which is controlled exclusively and sequentially, by means forming a communication automaton, between a mode of operation with asynchronous reception of information from its neighboring nodes and a mode of operation for synchronous transmission of information to its neighboring nodes.
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.
Robust electromagnetic compatibility performance for in-vehicle Ethernet PHYs utilizing time division duplexing
Currently, there exists low power Ethernet PHY solutions running at 10 Gbps over twin-ax cables with SFP+ connectors. However, the cost and range of these cables, along with the size of the connectors, do not match the requirements of in-vehicle networks. If the cable is replaced with a single pair of shielded or coaxial cables, a different mechanism is needed to provide bi-directional communication. Time division duplexing (TDD) can be used to emulate full duplex communication over the single pair of cables by taking turns, in time, transmitting data over the pair of cables in each direction.
Anomaly detection method and anomaly detection device
An anomaly detection device included in a communication network adopting a time-triggered protocol based on a time slot includes: a frame transceiver that receives frames; and an anomaly detector that detects an occurrence of an anomalous frame in accordance with a time slot among a plurality of time slots included in a cycle and the number of repeated cycles of the cycle for each frame. The anomaly detector detects an occurrence of an anomalous frame by verifying a statistic on the frames received while the cycle is repeated a predetermined number of times, which is at least once, against a rule indicating a reference range of the statistic.
EXTENDED DISCONTINUOUS RECEIVE (eDRX) CYCLES
A core network node (e.g., Serving GPRS Support Node), a radio access network node (e.g., Base Station Subsystem) and various methods are described herein for implementing longer paging cycles (e.g., Extended Discontinuous Receive (eDRX) cycles) for wireless devices in a wireless communication network.
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.
METHODS AND DEVICES FOR UPDATING AN UPLINK CONTENTION WINDOW SIZE IN A WIRELESS COMMUNICATION SYSTEM
Updating an uplink contention window size in a listen before talk process in a wireless communication system such as LTE may be done by the eNB if transport blocks contained in the starting subframe of a reference scheduled burst transmitted by a User Equipment are successfully decoded at the eNB. Otherwise, the User equipment adjusts the contention window size depending on information supplied by the eNB. This information identifies the first subframe in the burst whose transport block the base station was able to successfully decode. Depending on whether the User Equipment was first transmitting before or on the identified subframe, the User Equipment can either increase or reset the contention window size.
COMMUNICATION SYSTEM FOR BATTERY MANAGEMENT SYSTEMS IN ELECTRIC OR HYBRID VEHICLES
A circuit can include a CAN bus and multiple nodes. The multiple nodes can reboot at the same time so that a Time 0 is set at boot for each node. Each node can store an ID node and determine from its ID node one time slot of a plurality of periodic time slots starting from Time 0 in which to transmit on the CAN bus. Each node can transmit messages on the CAN bus in its determined time slot subsequent to Time 0.
Wireless communication system and associated wireless communication method and wireless device having efficient polling mechanism in overlapping network environments
A wireless communication system under a contention-based protocol comprises an access point and at least one station, wherein the station is arranged for wirelessly communicating with the access point under the contention-based protocol. In the operations of the wireless communication system, the access point broadcasts a polling usage sequence to assign a time slot for the station, and the station subsequently uses the assigned time slot to transmit a data packet to the access point.
ETHERNET-BASED FIELDBUS PACKET EXCHANGE WITHIN A MOBILE WIRELESS COMMUNICATION NETWORK
Apparatuses, methods, and systems are disclosed for ethernet-based fieldbus packet exchange within a mobile wireless communication network. One apparatus (700) includes a transceiver (725) in communication with a first node in an ethernet-based fieldbus system and a plurality of user equipment (UE) devices via a mobile wireless communication network. The apparatus includes a processor (705) that determines configuration information that comprises a mapping defining which datagrams of a packet each of the plurality of UE devices within the mobile wireless communication network receives and a sequence in which each UE device receives the datagrams. The processor (705) further receives a packet comprising a plurality of datagrams. The processor (705) further determines which datagrams of the plurality of datagrams are for each UE device according to the configuration information and sends to each UE device, in order of the sequence defined by the configuration information, a packet comprising the datagrams.