An example embodiment includes a first subsystem, a second subsystem, and a third subsystem in different locations, where the first subsystem is configured to receive a request to deliver a set of packets to the third subsystem, send the set of packets to the second subsystem, and send, through first nodes, a first data stream containing the a set of packets to the third subsystem. The second subsystem is configured to receive the a set of packets and send, through second nodes that differ from the first nodes, a second data stream containing a set of packets to the third subsystem. In addition, the third subsystem is configured to receive the first and second data streams, determine that each data stream comprises the a set of packets, and send the set of packets from one of the first and second data streams to a downstream component.

A processing device includes a transceiver to be coupled to a link and control logic coupled to the transceiver. The control logic is to assign a unique sequence identifier to each packet to be transmitted across the link to a receiving node and transmit packets via the transceiver across the link to the receiving node. Each packet is to have a unique sequence identifier. The control logic also is to receive a message from the receiving node, the message containing the sequence identifier of a packet not correctly received by the receiving node. Based on the received message, the control logic is to cause an end-to-end negative acknowledgment (E2E NAK) packet to be transmitted to an originating node of the packet that was not correctly received.

A method transmits information, in particular consumption data and/or useful data, in the form of a data packet. The data packet is transmitted repeatedly, preferably at definable time intervals, via radio from a transmitter to a receiver and then the data packet is divided into data subpackets. An interference state of the data subpackets is established on the receiver side. Specific data subpackets are selected on the basis of the interference state, and the selected data subpackets are combined into a new data packet complementary to the data packet. The data packet is transmitted via both a first communication protocol and a second communication protocol, and the data packet is derived from the received data packets. The data packet has a lower level of interference than a data packet which is received exclusively via a single communication protocol.

Systems and methods to transmit data over multiple communication channels in parallel with forward error correction. Original packets are evenly distributed to the channels as the initial systematically channel-encoded packets. Subsequent channel-encoded packets are configured to be linearly independent of their base sets of channel-encoded packets, where a base set for a subsequent channel-encoded packet includes those scheduled to be transmitted before the subsequent packet in the same channel as the subsequent packet, and optionally one or more initial packets from other channels. The compositions of the sequences of the encoded packets can be predetermined without the content of the packets; and the channel-encoded packets can be generated from the original packets on-the-fly by the transmitters of the channels during transmission. When a sufficient number of packets have been received via the channels, a recipient may terminate their transmissions.

A data processing method includes: inserting multiple alignment markers (AMs) into a first data stream, where the first data stream is a data stream that is transcoded and scrambled after being encoded at a physical layer; adaptively allocating the first data stream that includes the multiple AMs to multiple physical coding sublayer (PCS) lanes to obtain second data streams; performing forward error correction (FEC) encoding on the second data streams on the multiple PCS lanes to obtain third data streams; and delivering the third data streams to multiple physical medium attachment (PMA) sublayer lanes according to an input bit width of a serializer/deserializer (SerDes) to obtain multiple fourth data streams, each fourth data stream includes at least one complete and continuous AM, and the at least one AM is an AM in the multiple AMs.

Group acknowledgement of a range of consecutive sequence numbers associated with non-received data. The acknowledgement includes indication of at least one endpoint of the range. It can include, for example, the sequence numbers of the first and last non-received data or the last received data packet. The feedback can refer also to a single sequence number, relating to a single PDU. The triggering of the acknowledgement can be done by conventional gap detection or receiver timers.

Advanced detectors for vector signaling codes are disclosed which utilize multi-input comparators, generalized on-level slicing, reference generation based on maximum swing, and reference generation based on recent values. Vector signaling codes communicate information as groups of symbols which, when transmitted over multiple communications channels, may be received as mixed sets of symbols from different transmission groups due to propagation time variations between channels. Systems and methods are disclosed which compensate receivers and transmitters for these effects and/or utilize codes having increased immunity to such variations, and circuits are described that efficiently implement their component functions.

The present disclosure is directed to systems, apparatuses, and methods for performing continuous or periodic link training. Existing link training protocols generally perform link training only once during startup or initialization of a link and, as a result, are limited in their applications. After link training is performed and Open Systems Interconnect (OSI) data link layer and other high-layer data is transmitted across the link, no further link training is performed using these existing link training protocols. However, parameters of the link may change over time after link training is performed, such as temperature of the link and voltage levels of signals transmitted over the link by the transmitter of the transmitter-receiver pair.

Systems and methods of reducing transmission time are described. Uniform-sized original packets are generated from a data frame having a payload with an identifier and data. The packets include the identifier, total block number, block index that specifies an order of the packet, and the data. The packets are encoded to form redundant packets with the identifier, block number, block index and redundant data. The available block index for the original and redundant packets are different. The packets are transmitted by individual modems over different channels at transmission rates that are each configured to minimize free space in an input buffer of the modem and are dependent on feedback from the receiver. The feedback indicates a difference between the transmission rate and a reception rate. The encoding rate is dependent on the original packets over the original and redundant packets or a maximum transmission rate over the remaining transmission rates.

A data distribution method, a data aggregation method, and related apparatuses are disclosed. The data distribution method may include: receiving a first packet stream; dividing the first packet stream to obtain a first data block stream; sending the first data block stream to a first circuit; processing, by the first circuit, the first data block stream to obtain a first data stream; distributing, by the first circuit, the first data stream to N1 second circuits of M second circuits in a PHY, where M is greater than N1, N1 is a positive integer, and M is a positive integer; and processing, by the N1 second circuits, the received first data stream to obtain N1 first code streams. The technical solutions provided by the embodiments of the present invention help to meet a requirement for complex bandwidth configuration and extend an application scenario.