H04L49/9094

TELECOMMUNICATIONS SYSTEMS AND METHODS FOR MACHINE TYPE COMMUNICATION
20190141683 · 2019-05-09 · ·

A method for communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control Information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is transmitted.

Dynamic optimization for IP forwarding performance
10284502 · 2019-05-07 · ·

A host connected to at least one data network has a processor having a plurality of cores, and a memory. A network interface controller is coupled to the host, and configured to transmit and receive data packets via multiple distinct physical ports. The host and the network interface controller are cooperative upon receiving a packet for storing the packet in a receive buffer of the memory, deciding in the host, responsively to a destination identifier in the packet, to forward the packet from the host to the at least one data network via another one of the physical ports, and selecting one of the cores to perform a send operation.

Enhanced acknowledgement handling in communication packet transfer
10263920 · 2019-04-16 · ·

Described herein are methods, systems, and software for handling packet buffering between end users and content servers, such as content delivery nodes. In one example, a method of operating a content server includes generating first and second data packets for first and second content requests. Once generated, the method provides storing the first packets in a packet buffer and transferring the first packets to a first user device. Upon transfer, the first packets are deleted from the packet buffer and replaced with the second packets. Theses second packets are then transferred to a second user device and deleted from the packet buffer. Further, once the packets are transferred to the user devices, the method further includes monitoring for an acknowledgment from the user devices to ensure the packets are received.

Method and device for forwarding data messages

The present application discloses a method and device for forwarding a data message. A specific embodiment of the method comprises: receiving the data message and reading a data context length value of a first row in the data message; determining whether the data context length value is less than or equal to a maximum segment size in a single transmission according to a transmission control protocol; reading data from the data message in segments in response to the data context length value being less than or equal to the maximum segment size in the single transmission according to the transmission control protocol; reading data from the data message in rows in response to the data context length value being greater than the maximum segment size in the single transmission according to the transmission control protocol; and storing the read data in a user buffer, and sending the data in the user buffer to a terminal if the data in the user buffer exceeds a preset capacity threshold. According to this embodiment, the data messages can be quickly and efficiently forwarded.

PACKET SEQUENCE BATCH PROCESSING

An apparatus, including: a hardware platform; logic to execute on the hardware platform, the logic configured to: receive a batch including first plurality of packets; identify a common attribute of the batch; perform batch processing on the batch according to the common attribute; generate a hint for the batch, the hint comprising information about the batch to facilitate processing of the batch; and forward the batch to a host platform network interface with the hint.

Fixed HS-DSCH or E-DCH allocation for VoIP (or HS-DSCH without HS-SCCH/E-DCH without E-DPCCH)

In order to reduce the HS-SCCH overhead, a fixed time allocation approach could be used. In that case, the scheduling time of each VoIP user is semi-static and thus there is no need to transmit e.g. HS-SCCH toward the UE for the initial transmissions, if the UE knows when to receive data on the HS-DSCH and what transport format is used. There are at least two ways of implementing this: 1) HS-SCCH/E-DPCCH signalling to indicate parameters of a first transmission, with subsequent transmissions using the same parameters (and HS-SCCH/E-DPCCH always sent when changes needed), or 2) fixed allocation, RRC signalling used to allocate users and tell the default transport parameters.

Telecommunications systems and methods for machine type communication
10178662 · 2019-01-08 · ·

A method for communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is transmitted.

Openflow Match and Action Pipeline Structure
20190007331 · 2019-01-03 ·

An embodiment of the invention includes a packet processing pipeline. The packet processing pipeline includes match and action stages. Each match and action stage in incurs a match delay when match processing occurs and each match and action stage incurs an action delay when action processing occurs. A transport delay occurs between successive match and action stages when data is transferred from a first match and action stage to a second match and action stage.

Packet processing at a computer

A computer stores packets from a first device at a first buffer. The computer decodes the packets to obtain decoded packets at a decoder. The computer encodes encoding the decoded packets to obtain encoded packets at an encoder. The computer transmits the encoded packets from the encoder to a storage unit. The computer fetches the encoded packets from the storage unit using a second buffer. The computer causes a transmitter to transmit the encoded packets from the second buffer to a second device.

RELIABLE TRANSPORT OFFLOADED TO NETWORK DEVICES

Examples described herein relate to offload reliable transport management to a network interface device and store packets to be resent, based on received packet receipt acknowledgements (ACKs), into one or more kernel space queues that are also accessible in user space.