Method, device and terminal for selective response packet transmission

A packet transmission and selective technology, applied in the direction of network traffic/resource management, electrical components, wireless communication, etc., can solve the problems of SACK packet disorder, retransmission, transmission throughput reduction, etc., and achieve the effect of improving throughput.

Inactive Publication Date: 2010-01-20
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Therefore, the SACK packet transmission method in the prior art may cause the SACK packets arriving at the sender to be out of order, thereby causing unnecessary retransmission of data packets from the sender to the receiver, resulting in a decrease in transmission bandwidth and a decrease in transmission throughput.

Method used

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  • Method, device and terminal for selective response packet transmission
  • Method, device and terminal for selective response packet transmission
  • Method, device and terminal for selective response packet transmission

Examples

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Embodiment Construction

[0037] According to the embodiment of the present invention, after selecting (determining) a path from multiple paths established between the sender and the receiver as the SACK packet transmission path, the receiver sends all SACK packets to the sender through the SACK packet transmission path. Specific as image 3 As shown, the sender sends data packet group 1 to the receiver through path 1, and sends data packet group 2 to the receiver through path 2; the receiver generates an acknowledgment packet SACK1 when receiving data packet group 1, and receives data packet group 2 SACK2 is generated at this time; the receiver selects path 2 as the SACK packet transmission path, and transmits both SACK1 and SACK2 to the sender through the SACK packet transmission path (that is, path 2). Since both SACK1 and SACK2 arrive at the sender through one path, it can be guaranteed that the SACK packet sent first arrives first, thereby avoiding disorder of the SACK packets arriving at the send...

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Abstract

The invention relates to the field of mobile communication, in particular to a technique for transmitting selective response SACK packets in multi-path transmission protocols. A selective response packet transmission method comprises the steps of determining one single path among a plurality of paths as a selective response SACK packet transmission path and transmitting the SACK packets through the SACK packet transmission path. The invention also provides a selective response packet transmission device. As one path is selected from a plurality of paths as the SACK packet transmission path and all the SACK packets are sent to a sender through the SACK packet transmission path, that the earlier sent SACK packets arrive earlier can be ensured so as to avoid the disorder of the SACK packets arriving at the sender. In addition, as the path with minimum round-trip delay is selected as the SACK packet transmission path, the SACK packets can be accelerated to arrive at the sender so as to improve the end-to-end throughput of multi-path concurrent transmission.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to the technology for transmitting the selective response SACK packet in the multipath transmission protocol. Background technique [0002] The future mobile communication network presents a development trend of broadband and the coexistence of various heterogeneous wireless access networks. In a heterogeneous network environment, it is common for multiple wireless access networks to cover the same area and provide services; on the other hand, with the reduction of network interface costs, multi-mode mobile terminals have become a development trend, and mobile terminals Has multiple heterogeneous wireless interfaces, such as Wi-Fi (Wireless Fidelity, wireless fidelity), 2.5G (2.5th generation mobile communication), 3G (3rd generation mobile communication), WiMAX (World Interoperability for Microwave Access, global microwave access interoperability), etc. In an area covered by m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W28/14H04L1/16
Inventor 阳旺彭聪李风华李贺武吴茜陈荣第
Owner CHINA MOBILE COMM GRP CO LTD
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