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A method, receiving device and sending device for realizing retransmission of packet loss request

A receiving device, packet loss technology, applied in the transmission system, data exchange through path configuration, electrical components, etc., can solve the problem of prolonged packet loss transmission, long time to request retransmission, increased processing complexity and processing time, etc. question

Active Publication Date: 2020-09-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, due to the need to support the protocol above the third layer, the processing complexity and processing time of the protocol increase; on the other hand, only the decapsulation of the protocol message above the , to determine whether there is packet loss in the network, which makes it take longer to detect packet loss and request retransmission, thus making the transmission delay longer when packet loss occurs

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  • A method, receiving device and sending device for realizing retransmission of packet loss request
  • A method, receiving device and sending device for realizing retransmission of packet loss request
  • A method, receiving device and sending device for realizing retransmission of packet loss request

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Embodiment Construction

[0064] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0065] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0066] The header of the data message of the IPsec protocol includes a message sequence number (SN, Sequence Number). Before performing IPSec protocol communication, an IPSec protocol tunnel needs to be established between IPSec protocol gateways, and the...

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Abstract

A method for requesting packet loss retransmission, a receiving apparatus and a sending apparatus. The method comprises: a receiving side IPSec protocol gateway determining whether there is a data message needing to be retransmitted in unreceived data messages according to a current receiving window of an IPSec protocol tunnel corresponding to a received valid IPSec protocol data message; and if so, requesting a sending side IPSec protocol gateway to retransmit the data message needing to be retransmitted. By means of the technical solution provided in the present invention, packet loss retransmission is requested on an IPSec protocol in a three-layer network protocol of the Internet, and time for requesting retransmission during packet loss is shortened, thereby reducing a packet loss transmission delay.

Description

technical field [0001] The invention relates to data network communication technology, in particular to a method, a receiving device and a sending device for realizing packet loss request retransmission. Background technique [0002] As we all know, the Internet based on the Internet Protocol (IP) is becoming more and more popular. It can be said that people's production and life are inseparable from the Internet, so the security of the Internet is getting more and more attention. In order to improve the security of the Internet, an IP security (IPSec, IP Security) protocol is formulated on the basis of the IP protocol. The IPSec protocol provides security services such as access control, connectionless data integrity, data confidentiality, data source verification, anti-replay attack and automatic key management. [0003] The IPsec protocol defines Encapsulating Security Payloads (ESP, Encapsulating SecurityPayloads) and Authentication Headers (AH, Authentication Headers) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L12/46H04L29/06
CPCH04L1/18
Inventor 唐大圆
Owner ZTE CORP