Aspects of present disclosure include devices within a transmission path of streamed content forwarding received data packets of the stream to the next device or “hop” in the path prior to buffering the data packet at the device. In this method, typical buffering of the data stream may therefore occur at the destination device for presentation at a consuming device, while the devices along the transmission path may transmit a received packet before buffering. Further, devices along the path may also buffer the content stream after forwarding to fill subsequent requests for dropped data packets of the content stream. Also, in response to receiving the request for the content stream, a device may first transmit a portion of the contents of the gateway buffer to the requesting device to fill a respective buffer at the receiving device.

A packet group processor of a network device defines groups of packets among packets that are being processed by the network device, each of at least some of the groups of packets defining a respective group of at least two different packets. Each group includes one or more packets to be transmitted via a respective same network interface. A transmit processor makes a single transmit decision that a particular group of at least two packets is to be transmitted via a corresponding network interface, and in response to the single transmit decision, transfers the particular group of at least two packets to the corresponding network interface for transmission.

Embodiments of the present application provide a method and a device for transmitting data, which are capable of achieving timely data transmission. The method includes: starting, by a receiving end, a timer of a first delivery mode when determining that data delivered and data to be delivered are not continuous, where the first delivery mode is used to indicate that the receiving end directly delivers data to an upper layer upon the receipt of the data; and delivering, the receiving end, the data to be delivered to the high level using the first delivery mode in a case where the timer of the first delivery mode does not expire.

Embodiments of the present application provide a method and a device for transmitting data, which are capable of achieving timely data transmission. The method includes: starting, by a receiving end, a timer of a first delivery mode when determining that data delivered and data to be delivered are not continuous, where the first delivery mode is used to indicate that the receiving end directly delivers data to an upper layer upon the receipt of the data; and delivering, the receiving end, the data to be delivered to the high level using the first delivery mode in a case where the timer of the first delivery mode does not expire.

Deterministic real-time multi-protocol heterogeneous packet-based transport is achieved by traffic shaping. When receiving a plurality of packets from a root complex where contents of each packet from the plurality of packets organized in accordance with a first protocol, a sequence number is added to each packet and a packet type is identified. Every packet in the first plurality of packets is encapsulated into at least one packet organized in accordance with a second protocol to form a second plurality of packets organized in accordance with the second protocol. All the packets from the second plurality of packets pass traffic scheduling or traffic shaping prior being sent via a plurality of connections to avoid burstiness and to achieve bounded transport latency in the plurality of connections, thereby providing deterministic real-time behavior in distributed systems.

Deterministic real-time multi-protocol heterogeneous packet-based transport is achieved by traffic shaping. When receiving a plurality of packets from a root complex where contents of each packet from the plurality of packets organized in accordance with a first protocol, a sequence number is added to each packet and a packet type is identified. Every packet in the first plurality of packets is encapsulated into at least one packet organized in accordance with a second protocol to form a second plurality of packets organized in accordance with the second protocol. All the packets from the second plurality of packets pass traffic scheduling or traffic shaping prior being sent via a plurality of connections to avoid burstiness and to achieve bounded transport latency in the plurality of connections, thereby providing deterministic real-time behavior in distributed systems.

In an example embodiment a data transmission device for transmitting data packets comprises at least one receive interface configured to receive data packets from a respective data source; a respective receive buffer configured to buffer the data packets received via the respective receive interface; a transfer device configured to transfer the data packets from the respective receive buffer to a transmit buffer, the transmit buffer selected for the respective data packet from a plurality of existing transmit buffers; and a respective transmit interface configured to transmit the data packets stored in the respective transmit buffer to a receiving device, wherein the transfer device is configured to transfer the respective data packet from the respective receive buffer into the selected transmit buffer only when an enable condition exists, the enable condition being based on a fill level of one of the transmit buffers other than the selected transmit buffer.

In an example embodiment a data transmission device for transmitting data packets comprises at least one receive interface configured to receive data packets from a respective data source; a respective receive buffer configured to buffer the data packets received via the respective receive interface; a transfer device configured to transfer the data packets from the respective receive buffer to a transmit buffer, the transmit buffer selected for the respective data packet from a plurality of existing transmit buffers; and a respective transmit interface configured to transmit the data packets stored in the respective transmit buffer to a receiving device, wherein the transfer device is configured to transfer the respective data packet from the respective receive buffer into the selected transmit buffer only when an enable condition exists, the enable condition being based on a fill level of one of the transmit buffers other than the selected transmit buffer.

A data processing apparatus (1) includes a signal processing unit (31, 32) and an insertion/deletion unit (33). The signal processing unit performs predetermined signal processing on the wirelessly received data for each frame that includes a predetermined number of samples, and stores the data in the buffers (41, 42). In the case where an amount of the data accumulated in the buffer is out of a predetermined range, the insertion/deletion unit (33) performs insertion/deletion processing that inserts or deletes the data in units of samples.

A data processing apparatus (1) includes a signal processing unit (31, 32) and an insertion/deletion unit (33). The signal processing unit performs predetermined signal processing on the wirelessly received data for each frame that includes a predetermined number of samples, and stores the data in the buffers (41, 42). In the case where an amount of the data accumulated in the buffer is out of a predetermined range, the insertion/deletion unit (33) performs insertion/deletion processing that inserts or deletes the data in units of samples.