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84 results about "Packet aggregation" patented technology

In a packet-based communications network, packet aggregation is the process of joining multiple packets together into a single transmission unit, in order to reduce the overhead associated with each transmission.

Packet aggregation for real time services on packet data networks

A method and equipment is used to transmit and/or receive time delay-intolerant information over a communication system. The information is transmitted in aggregated form. A plurality of packets representing time delay-intolerant information is combined to form an aggregate packet. The aggregate packet is formed based on user service requirements while maintaining time delay requirements of the information. The size of the aggregated is formed from a negotiation between the transmitting equipment and receiving equipment. Because of the use of an aggregated packet less scheduling of packets is done and the aggregated packet can be transmitted at a rate different than the fixed rate of the time delay-intolerant information. The equipment comprises transmit equipment and receive equipment. The transmit equipment contains an aggregator that combines a plurality of packets based on user service requirements. The packets to be transmitted are retrieved at the fixed rate of the time delay-intolerant information. The size of the aggregate packet can be determined on a static or dynamic basis. The receiving equipment contains a de-aggregator circuit that receives aggregated packets and generates individual packets from the received aggregated packet. The generated individual packets are retrieved from the de-aggregator at the fixed rate of the time delay-intolerant information.
Owner:GEMPLU

Method for two-stage packet aggregation facing wireless sensor network of hybrid topology structure

A method for two-stage packet aggregation facing wireless sensor network with hybrid topology structure including: building various nodes in a wireless sensor network into a hybrid topology structure which combines the star topology and mesh topology; establishing a two-stage packet aggregation architecture for periodic sensor data based on the above described topology structure; determining the packet format, aggregating and disaggregating the two-stage packets based on the topology structure and aggregation architecture; according to the application, the aggregated nodes in the network configuring router nodes and aggregation attributes of the nodes; according to the aggregation attribute, the sensor nodes performing the first-stage aggregation and generates an first-stage aggregation packet; according to the aggregation attributes, the router node implementing second-stage aggregation and generating a second-stage aggregation packet; the aggregation nodes taking charge of disaggregating the aggregated packets. Embodiments of the invention adopt the above described hybrid topology structure, feature a two-stage packet aggregation method, decrease the overhead of packet-head, reduce the energy consumption of the nodes and inter-node interference, and save communication resources.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Network data packet aggregation method and system and device

The invention provides a network data packet aggregation method which comprises that whether to-be-compressed data packets are enough in number is judged by a central processing unit (CPU), if the to-be-compressed data packets are enough in number, when the CPU detects that the number of the aggregated to-be-compressed data packets reaches a first preset number, the to-be-compressed data packets of the first preset number are aggregated to be data blocks to be loaded into a request queue, otherwise, the CPU detects data compression efficiency of an acceleration card, when the data compression efficiency accords with a preset condition, the to-be-compressed data packets aggregated during the period from a last aggregation end point to current time are aggregated into the data blocks to be loaded into the request queue, finally, the data blocks of the request queue are read in a compression engine by the acceleration card to be compressed and then the generated data packets are loaded into a response queue, and the CPU obtains compressed data packets in the response queue. The method can carry out self regulation according to compression efficiency of the acceleration card, improves efficiency of the acceleration card, and has timeliness and usability. The invention further discloses a network data packet aggregation system and a data packet aggregation processing device.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Methods and apparatus for optimum packet aggregation in a communication network

The present invention is a method and apparatus to aggregate or bundle packets to optimize the resource utilization and improve the transport efficiency of packets which are transferred between various protocol layers in a communications network. One embodiment of the invention sets forth a method of aggregating packets of a first size to packets of a second size for transmission in a wireless communications network between, for example, a base station controller and base transmitting station. The method includes the steps of calculating a maximum bundling factor represented by (an IP packet MTU size at a first location minus protocol overhead) divided by an application layer packet size and determining a most efficient bundling factor in terms of packet fragments, where the most efficient bundling factor is determined by a largest packet per fragment ratio. If the number of packets to be bundled is less than or equal to the maximum bundling factor then all packets are bundled together for a next step in the transmission. If the number of packets to be bundled is greater than the maximum bundling factor, then packets are bundled according to the most efficient bundling factor for the next step in the transmission. If there are multiple bundling factors having a same bundling efficiency, a larger of the multiple bundling factors having the same bundling efficiency is selected as the most efficient bundling factor.
Owner:LUCENT TECH INC +1

DTN network data transmission method using bundle block aggregation on dual-hop asymmetric channel

The invention provides a DTN network data transmission method using bundle block aggregation on a dual-hop asymmetric channel. The method is characterized by repackaging, on the premise that the last-hop data is not completely absorbed, a part of data into a bundle according to a link characteristic when a link is communicated in a next hop by using bundle block technology, and accelerating transmission and increasing link utilization efficiency by using a block manner; by using bundle aggregation technology, aggregating multiple data packets to form a large data packet and then transmitting the large data packet. The method decreases the number of the data packets by means of the bundle aggregation so as to reduce the number of feedback packets, shorten data transmission time, and increase throughput. In addition, the method improves the structure of RS so as to enable the RS to change within a small range even in a high bit error rate case. The method effectively solves problems that a DTN is overlong in network transmission and storage waiting time, wastes transmission opportunities, and is low in throughput in the case that an upper link and a lower link are asymmetric in transmission rate and high in bit error rate.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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