H04L12/841

Time sensitive network (TSN) scheduler with verification
11121978 · 2021-09-14 · ·

According to some embodiments, system and methods are provided, comprising receiving, at a verification module, a schedule for transmission of one or more data frames to one or more destination nodes via a Time Sensitive Network (TSN); receiving, at the verification module, a destination for each data frame; receiving, at the verification module, a maximum tolerable latency for each data frame; determining, via the verification module, the received schedule is correct; transmitting one or more data frames according to the schedule; accessing, via the verification module, the one or more destination nodes; verifying, via the verification module, the one or more data frames were transmitted to the one or more destination nodes within a maximum tolerable latency, based on accessing the one or more destination nodes; and controlling one or more operations of an installed product based on the transmitted one or more data frames. Numerous other aspects are provided.

COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND PROGRAM
20210266261 · 2021-08-26 · ·

A communication apparatus comprises a TCP terminating part that terminates TCP communication with an apparatus of data transmission destination, a monitoring part that monitors network status of the apparatus of data transmission destination on a per-session basis, and a transferring rate controlling part that changes size of a transmission buffer that is adopted to the session based on the network status.

Method, apparatus, and system for implementing rate adjustment at transmit end
11108699 · 2021-08-31 · ·

A method, an apparatus, and a system for implementing rate adjustment at a transmit end. The method includes: receiving, by a first network device, a first data packet sent by a previous-hop network device, where the first data packet includes a first required rate, a first deadline, and a first sending rate that correspond to a first data stream; obtaining, by the first network device, a second sending rate of the first data stream; and sending, by the first network device, a feedback packet to a second network device when the second sending rate is less than the first sending rate, where the feedback packet includes the second sending rate, and the feedback packet is used to instruct the second network device to inform, based on the second sending rate, the transmit end to adjust a rate for sending the first data stream.

COMMUNICATION CONTROL APPARATUS, METHOD, PROGRAM, AND NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM
20210273889 · 2021-09-02 · ·

A communication control apparatus includes: a first communication processing section configured to receive one or more packets from a transmitting apparatus, the one or more packets being transmitted from the transmitting apparatus to a receiving apparatus and being unable to be generated and modified at a relay point; and a second communication processing section configured to transmit the one or more packets to the receiving apparatus, wherein the second communication processing section receives, from the receiving apparatus, one or more acknowledgement packets for the one or more packets, the one or more acknowledgement packets being unable to be generated and modified at a relay point, and wherein the first communication processing section transmits the one or more acknowledgement packets to the transmitting apparatus, the communication control apparatus further including a control section configured to control the one or more packets or the one or more acknowledgement packets.

On-board vehicular communication system
11122489 · 2021-09-14 · ·

A system and method of obtaining update information include receiving a request for an update from a mobile device, determining whether the request for update is for a scheduled update or an unscheduled update, in response to determining that the request for update is for an unscheduled update: requesting a first update information from a high-speed provider, receiving the first update information from the high-speed provider, and sending the first update information to the mobile device, and in response to determining the update is for a scheduled update: requesting a second update information from the telematics system, receiving the second update information from the telematics system, and sending the second update information to the mobile device.

Content node selection using network performance profiles
11089128 · 2021-08-10 · ·

A communication system exchanges communications between end user devices, content delivery nodes (CDN) of a content delivery system, and a control system that selects CDNs of the content delivery system. The control system receives a domain name lookup request issued by an end user device for retrieving content cached by one or more CDNs of the content delivery system. The control system associates the end user device with a network performance profile to select a CDN of the content delivery system. The control system transfers a network address associated with the selected CDN for receipt by the end user device responsive to the domain name lookup request.

ROUND TRIP TIME (RTT) MEASUREMENT BASED UPON SEQUENCE NUMBER

Systems, methods, and computer-readable media are provided for determining a packet's round trip time (RTT) in a network. A system can receive information of a packet sent by a component of the network and further determine an expected acknowledgement (ACK) sequence number associated with the packet based upon received information of the packet. The system can receive information of a subsequent packet received by the component and determine an ACK sequence number and a receiving time of the subsequent packet. In response to determining that the ACK sequence number of the subsequent TCP packet matches the expected ACK sequence number, the system can determine a round trip time (RTT) of the packet based upon the received information of the packet and the received information of the subsequent packet.

Method and apparatus for detecting packet loss in staggercasting

In a staggercasting system, a receiver estimates a delivery time of a packet from a main stream and, if the packet from the main stream is not received at the estimated delivery time, the receiver substitutes a corresponding packet from the stagger stream. As a result, a loss can be detected quicker since the receiver does not have to wait until detection of a missing sequence number and, therefore, the receiver can accommodate the time of presentation such that the user does not suffer a loss in quality of service.

Method and apparatus for re-transmitting MMT packet and method and apparatus for requesting MMT packet re-transmission

The present invention discloses a method of re-transmission of a lost MMT packet by a packet transmission apparatus. The method includes generating a media processing unit (MPU) based on a media fragment unit (MFU) and generating an MMT asset by encapsulating the MPU; generating an MMT packet based on the MPU included in the generated MMT asset; and transmitting the generated MMT packet, wherein the method further comprises adding, in a signaling message related to re-transmission of the MMT packet, delay_constrained_ARQ_flag to indicate whether or not the MMT packet transmission apparatus supports a delay-constrained automatic repeat request (ARQ) function.

Multipath traffic management

One embodiment provides an apparatus. The apparatus includes client traffic management (CTM) logic. The CTM logic is to trigger implementation of a selected network traffic flow related to the client device, the triggering based, at least in part, on a network traffic flow related to the client device. The network traffic flow is associated with a connection and includes at least one subflow. Each subflow is carried by a respective path associated with the connection. The triggering includes at least one of constraining and/or adjusting an allowable throughput at a service provider for one or more of the at least one subflow. The selected traffic policy is to be implemented in a transport layer.