5 results about "Minimum latency" patented technology

Embodiments of the present invention provide computer-implemented methods, computer program products and computer systems. Embodiments of the present invention can identify an effective channel on a transmission stream framework comprising a plurality of channels and nodes using current capacity states and current transmission schedules. Embodiments of the present invention can then determine whether to continue marshalling on a current channel or to marshal to the effective channel based on transmission demands between nodes and channel providing a minimum latency between available options within the transmission stream framework

The embodiment of the invention provides a time delay reporting method, and the method comprises the steps: reporting target time delays corresponding to data at a plurality of specific positions in a data stream, and enabling the specific positions to be spaced by a fixed length; wherein the period of the plurality of specific positions corresponds to the length of one or more convolution interleaving sequences, and the specific positions correspond to a delay line with the maximum or minimum time delay introduced in convolution interleaving; or, the period of the plurality of specific positions corresponds to the length of one or more distribution sequences, and each distribution sequence corresponds to eight distributed subsequences; or the period of the plurality of specific positions corresponds to an integral multiple of N data blocks, each data block in the N data blocks corresponds to a forward error correction (FEC) code word, N is a positive integer, and the length of each data block is 120 bits, or 128 bits, or 110 bits, or 126 bits. By using the scheme, the time delay can be accurately reported.

The embodiment of the application provides a communication negotiation method and device, which are used for controlling the single transmission duration of an access hot spot AP and a station STA, and ensuring that the low-latency service requirement is met. Specifically, the communication negotiation device determines the minimum latency requirement according to the latency requirement of a plurality of to-be-transmitted data devices, wherein the plurality of to-be-transmitted data devices include the AP and the STA; meanwhile, the communication negotiation device determines the to-be-transmitted data device in a transmission cycle according to the minimum latency requirement and the latency requirement of the plurality of to-be-transmitted data devices; the communication negotiation device determines the single maximum transmission duration according to the minimum latency requirement and the number of the to-be-transmitted data device in the transmission cycle, wherein the single maximum transmission duration meets the total duration of the to-be-transmitted data device in the transmission cycle for transmitting a data packet once in sequence is less than or equal to the minimum latency requirement; and the communication negotiation device instructs the to-be-transmitted data device in the transmission cycle to transmit the data packet according to the single maximum transmission duration.

This invention discloses a minimum latency MPTCP data scheduling method based on predicted packet arrival time. When the current data packet arrives at the sending buffer, the round-trip time is obtained based on the ACKs returned by the receiver to each sub-stream. The flight time of data packets in each sub-stream is calculated, the link parameters of each sub-stream are statistically analyzed, and the throughput of each sub-stream is calculated. Network jitter is calculated using previously recorded round-trip time samples from each sub-stream. The total number of bytes of unsent data packets in the sending queue of each sub-stream and the number of bytes of the current data packet are calculated. The time required for both unsent data packets and the current data packet to be sent is calculated. Considering packet loss feedback, the predicted arrival time of data packets in each sub-stream is comprehensively calculated, and the sub-stream with the smallest value is selected to schedule the current data packet. This invention can reasonably schedule data packets based on the arrival time of each data packet in each sub-stream, thereby reducing the number of out-of-order data packets at the receiver, reducing transmission latency, and meeting the low latency requirements of real-time video services.

Apparatus and techniques are provided for on-time packet transmission through a series of computing nodes in a network. A node receives a packet from an input network interface, enforces an earliest allowed time for transmission of the packet to a next node based on data extracted from an information field in the packet, determines a transmission time for the packet that is no earlier than the earliest allowed transmission time, stores an indication of a minimum latency for the packet at the next node in the information field of the packet based on the determined transmission time, and transmits the packet to the next node through an output network interface.