Abstract: [Object] To simplify the operation of a terminal device for performing D2D communication in which the same communication scheme as the communication scheme of cellular communication is adopted. [Solution] Provided is a terminal device including: a detection unit configured to detect a synchronization signal for wireless communication with a base station; and a control unit configured to control transmission of a synchronization signal for inter-device communication. A radio frame used in the wireless communication with the base station and a radio frame used in the inter-device communication have a same frame structure. A timing of the synchronization signal for the inter-device communication in the same frame structure is same as a timing of the synchronization signal for the wireless communication with the base station in the same frame structure.

Abstract: A method and apparatus to configure grant-free transmission resources are provided. At least two configuration options can co-exist for configuring the grant-free transmission resources. The base station may explicitly or implicitly notify a user equipment which option is selected for grant-free transmission by that user equipment.

Abstract: An automotive network switch includes multiple ports, a switch core and one or more processors. The ports are configured to receive packets from electronic subsystems of a vehicle over a computer network deployed in the vehicle, and to transmit the packets to other electronic subsystems of the vehicle over the computer network. The switch core is configured to receive the packets from one or more of the ports, to forward the packets to at least one of the ports, and to transmit the packets over network links of the computer network. The processors are configured to obtain at least some of the packets processed by the switch, to analyze the obtained packets to identify an anomaly in one or more of the electronic subsystems of the vehicle, and to send a notification of the anomaly over the computer network to a central processor that is external to the switch.

Abstract: A packet transfer apparatus is configured to perform packet exchange processing for exchanging multiple continuous packets with low delay while maintaining fairness between communication flows of the same priority level. The packet transfer apparatus includes: a packet classification unit; queues that holds the classified packets for each classification; and a dequeue processing unit that extracts packets from the queues. The dequeue processing unit includes a scheduling unit that controls the packet extraction amount extracted from the queue for a specific communication flow based on information on the amount of data that is requested by the communication flow and is to be continuously transmitted in packets.

Abstract: A method of managing data bearers between a cellular network subscriber device and a packet data gateway in a cellular network core, the cellular network subscriber device and the packet data gateway being connected by a default bearer, the method including receiving at least one dedicated bearer request for a communication session between the cellular network subscriber device and an external network resource; comparing at least one parameter of the received dedicated bearer against a set of predetermined rules; and if at least one parameter of the received dedicated bearer request matches at least one of the set of predetermined rules: storing the at least one parameter of the received dedicated bearer request; and sending a message to the subscriber device to cause the cellular network subscriber device and packet data gateway to use the default bearer for the communication session.

Abstract: Example communication methods and apparatus are described. One example method includes determining a random access preamble by a terminal device. The random access preamble includes six symbol groups. The terminal device determines a frequency location of the random access preamble based on random access configuration information and a preset rule. A frequency hopping interval between a first symbol group and a second symbol group and a frequency hopping interval between a fifth symbol group and a sixth symbol group are equal and are first intervals. A frequency hopping interval between the second symbol group and a third symbol group and a frequency hopping interval between a fourth symbol group and the fifth symbol group are equal and are second intervals. A frequency hopping interval between the third symbol group and the fourth symbol group is a third interval. The random access preamble is sent based on the frequency location.

Abstract: A communication apparatus includes a transition information generation unit that generates a plurality of pieces of different transition information related to transition from a first mode in which centralized communication is performed by an access point to a second mode in which no centralized communication by an access point is performed and a frame generation unit that generates a frame containing the transition information.

Abstract: An application processor and a system on chip (SoC) that incorporates the application processor are provided. The application processor includes a first core configured to process first data per unit time, a second core configured to process second data larger than the first data per unit time, and a lookup table configured to determine whether to activate the first core or the second core based on at least one of an analysis result of a message signal received by a communications processor, a sensing signal supplied to the application processor and a power level supplied to the communications processor.

Abstract: In some embodiments an apparatus includes a wireless sensor configured to be operatively coupled to a network gateway device that is configured to receive one of a first data packet or a second packet from the wireless sensor. The wireless sensor is configured to send the first data packet at a first time on a first frequency, the first data packet including a payload associated with a value of a measurement that was measured by the wireless sensor. The wireless sensor is configured to send the second data packet at a second time on a second frequency, the second data packet includes a payload associated with the value.

Abstract: A mobile station receives a control message containing an indicator of presence of a first access network that operates according to a first protocol that is capable of interworking with a second access network that operates according to a second, different protocol. In response to receiving the indicator, the mobile station performs a procedure to establish a personality for the mobile station that specifies the configuration to allow the mobile station to use features of the first access network that enable interworking with the second access network.

Abstract: A method is performed at a router configured to perform Bit Index Explicit Replication (BIER) for forwarding of multicast packets in a network. The method includes, upon receiving a multicast packet of a multicast flow, accessing flow mappings in which multicast flows are mapped to fixed accounting values corresponding to the multicast flows. The method further comprises generating a BIER header for the multicast packet by encoding a multi-segment entropy field of the BIER header with (i) a variable entropy value for equal-cost multi-path (ECMP) load balancing, and (ii) a fixed accounting value among the fixed accounting values that is mapped to the multicast flow in the flow mappings. The method also includes encapsulating the multicast packet with the BIER header to produce an encapsulated multicast packet, and forwarding the encapsulated multicast packet.

Abstract: Disclosed are a method and a device for controlling an EVPN route. According to an example of the method, when receiving an EVPN route from a second VTEP device, a first VTEP device checks whether the EVPN route carries a role attribute. When determining that the EVPN route carries a role attribute and the carried role attribute is a specified first role attribute value, the first VTEP device controls the distribution of the EVPN route according to a set route synchronization control strategy.

Abstract: A routing system for implementing a service and topology exchange protocol (STEP) comprises a primary STEP server configured to maintain a STEP repository and a plurality of routers, each router including a STEP client in communication with the primary STEP server. The STEP client of each router is configured to transmit, using the service and topology exchange protocol, service and topology state information for at least one route or service available through the router to the primary STEP server for storage in the STEP repository.

Abstract: In one embodiment, an apparatus includes n electrical communication channels, m optical communication media interfaces, and a plurality of muxes. The plurality of muxes are configured to receive an information stream. The information stream is carried over the n electrical communication channels and the m optical communication media interfaces. The plurality of muxes are further configured to transform the information stream from v virtual lanes. Each virtual lane includes a plurality of data blocks from the information stream and an alignment block, wherein v is a positive integer multiple of the least common multiple of m and n, v is greater than n, and n is equal to m.

Abstract: A method of transmitting a block from a bridge to a mesh network includes transmitting the block to at least a first node of a plurality of nodes, for distribution through the mesh network. The block includes a plurality of packets. The bridge receives, from the plurality of nodes, a plurality of status packets. Each status packet indicates reception status of the plurality of packets at a respective node of the plurality of nodes. The bridge selects at least a first packet of the plurality of packets for retransmission to the mesh network, based on the status packets. The bridge generates a retransmission block including at least the first packet. The first packet is included in the retransmission block a number of times based on the status packets. The bridge transmits the retransmission block to at least the first node, for distribution of the retransmission block through the mesh network.

Abstract: A multiplexer includes: a common filter, a first filter connected to the common terminal and having a passband including a reception band of a first communication band; a second filter connected to the common terminal and having a passband including a transmission band of the first communication band; a third filter connected to the common terminal and having a passband including a transmission band of a second communication band; and a fourth filter connected to the common terminal and having a passband including a reception band of the second communication band. The transmission band of the first communication band and the transmission band of the second communication band are located between the reception band of the first communication band and the reception band of the second communication band, and at least one of the first communication band or the second communication band is a 5G-NR communication band.

Abstract: A device and method for power optimization for a user equipment (UE) without neighbor cell measurement configuration. The UE may be configured with Connected Discontinuous Reception (C-DRX) functionality including a cycle with an onDuration. The UE may be configured with carrier aggregation (CA) in the unlicensed spectrum including a reference signal (DRS) monitoring timing configuration (DMTC) occasion that occurs outside of the onDuration. The UE determines at least one subframe of the onDuration for the UE to utilize an active mode of processing related to performing measurements corresponding to a cell utilizing the unlicensed spectrum. The UE determines to utilize a sleep mode of processing related to performing the measurements during the DMTC occasion based on detecting a first downlink signal transmitted by the cell during the at least one subframe of the onDuration.

Abstract: A network gateway is provided for routing data flows across a plurality of network connections, the network gateway including a plurality of network interfaces for transmitting data over the plurality of network connections, the plurality of network interfaces including a first network interface; at least one processor configured for: transmitting a sequential burst of packets across the first network interface; based on timestamps recorded when packets in the sequential burst of packets are received at a receiving node, and the size of the packets, generating a bandwidth of the first network interface; and routing a data flow of sequential packets across the plurality of network connections based on the generated bandwidth of the first network interface.

Abstract: Systems and methods for generating a virtual environment in a flock of vehicles are provided. In this method a reflector is utilized to define a coverage area. Sensory data from autonomous vehicles within this coverage area is collected, along with non-vehicle data. Then a virtual environment may be replicated using the data at a local computational device on each of the vehicles via the transmission of messages through the reflector. Each vehicle can use this data to make decisions regarding movements, as well as having the traffic patterns optimized based upon an objective. When traffic flow is being optimized it is also possible to assign weights to the vehicles to provide them preferential treatment in the traffic flow model. The traffic flow model that is generated may be a fluid dynamics model, or may be based upon deep learning techniques. The objective for the model is generally to maximize total vehicle throughput in order to reduce overall traffic congestion.

Abstract: A system and method for bandwidth management by controlling the bit rate of a signal stream in real time according to available link bandwidth. Applications include multiple-channel video data streams over a limited-bandwidth link such as a Digital Subscriber Line. A video signal is transrated at the head end to multiple streams having different bit rates, by a multirating device which sends the multiple streams over a network, along with metadata containing information about the data structure and parameters of the streams. At the network access edge, a demultirating device uses the metadata to select the stream with the highest video quality whose bit rate does not exceed the available bandwidth of the end-user's access link. This scheme provides multiple unicast signals to different end-users in place of a single multicast signal, supports multiple high-definition channels over a limited bandwidth link, and is compatible with standard encryption methods.