US 9,854,458 B2Granted

Data transmission method and system, and a non-transitory computer-readable storage medium

AssigneeZte Corporation

InventorsShuai Zhang, Jin Xu, Guanghui Yu, Shuanshuan Wu, Lin Chen

Life of this patent

Estimating the term…

Loading patent…

Abstract

A method for data transmission includes: if correctly receiving one or more source data packets, a destination node selecting source data packets which have not been saved from the source data packets to save; if receiving one or more network coded data packets, the destination node decoding them, and if the decoding can be correctly conducted and source data packets can be obtained, the destination node selecting source data packets which have not been saved from obtained source data packets to save; if judging that the number of currently saved source data packets is greater than one, the destination node selecting and sending one saved source data to other destination nodes, or after conducting network coding according to part or all of saved source data packets to obtain one or more network coded data packets, the destination node selecting and sending one network coded data packet to other destination nodes.

Claims16

Dependent claims

A method for data transmission, comprising:

if correctly receiving one or more source data packets sent by a source node or other destination nodes, a destination node selecting source data packets that have not yet been saved from the source data packets to save;
if receiving one or more network coded data packets sent by other destination nodes, the destination node decoding the network coded data packets, and if decoding can be correctly performed and source data packets can be obtained, the destination node selecting source data packets that have not yet been saved from the source data packets obtained through the decoding to save;
if determining that the number of currently saved source data packets is greater than one, the destination node selecting one saved source data packet and sending the one saved source data packet to other destination nodes, or after performing network coding according to part or all of saved source data packets to obtain one or more network coded data packets, the destination node selecting one network coded data packet and sending the one network coded data packet to other destination nodes;
wherein if determining that the number of currently saved source data packets is greater than one, the destination node selecting one saved source data packet and sending the one saved source data packet to other destination nodes, or after selecting part or all of saved source data packets to perform the network coding to obtain one or more network coded data packets, the destination node selecting one network coded data packet and sending the one network coded data packet to other destination nodes, comprises:
if determining that the number of currently saved source data packets is greater than one, the destination node generating one random number, and judging whether the random number falls within a preset transmission probability interval of source data packets, and if yes, the destination node selecting one saved source data packet and sending the one saved source data packet to other destination nodes, otherwise, after selecting part or all of the saved source data packets to perform the network coding to obtain one or more network coded data packets, the destination node selecting one network coded data packet and sending the one network coded data packet to other destination nodes.

2 more elements

A system for data transmission, applied to destination nodes, comprising a processor, and a storage device for storing computer executable instructions that when executed by the processor cause the processor to perform the steps in the following modules:

a receiving module, which is configured to:
if correctly receiving one or more source data packets sent by a source node or other destination nodes, select source data packets that have not yet been saved from the source data packets to save;
if receiving one or more network coded data packets sent by other destination nodes, decode the network coded data packets, and if decoding can be correctly performed and source data packets can be obtained, select source data packets that have not yet been saved from the source data packets obtained through the decoding to save;
and
a sending module, which is configured to:
if determining that the number of currently saved source data packets is greater than one, select one saved source data packet and send the one saved source data packet to other destination nodes, or after performing network coding according to part or all of saved source data packets to obtain one or more network coded data packets, select one network coded data packet and send the one network coded data packet to other destination nodes;
wherein the sending module is configured to:
if determining that the number of currently saved source data packets is greater than one, generate one random number, judge whether the random number falls within a preset transmission probability interval of source data packets, and if yes, select one saved source data packet and send the one saved source data packet to other destination nodes, otherwise, after selecting part or all of saved source data packets to perform the network coding to obtain one or more network coded data packets, select one network coded data packet and send the one network coded data packet to other destination nodes.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/108,236Filed 1 Jul 2014
Priority: CN 2013 1 074045027 Dec 2013
Published: US 2016/0330634 A110 Nov 2016
Granted: 26 Dec 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04W 24/02
Supervisory, monitoring or testing arrangements: arrangements for optimising operational condition
H04L 1/1835
Arrangements specially adapted for the receiver end: buffer management
H04L 69/22
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
H04B 7/15557
Ground-based stations: selecting relay station operation mode, e.g. between amplify and forward mode, decode and forward mode or FDD - and TDD mode