Title:
DATA RETRANSMISSION METHOD, DEVICE, AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/125647
Kind Code:
A1
Abstract:
The present disclosure relates to a data retransmission method, a device and a system, belonging to the field of data transmission technology. Said method comprises: upon detection of a packet loss event, sending, to a sending end, a retransmission request for a lost data packet; acquiring an RTT, and determining, on the basis of the RTT, a retransmission parameter threshold; and when a retransmission duration has elapsed since the retransmission request was sent, if no data packet is received, sending, to the sending end, a retransmission request for the data packet, updating the RTT, and proceeding to the process of determining the retransmission parameter threshold on the basis of the RTT; and when the numerical value of the retransmission parameter reaches the corresponding retransmission parameter threshold, if no data packet is received, stopping sending a retransmission request for the data packet. The present disclosure can easily shorten the total time consumed by retransmission, avoiding a long wait time for a lost data packet, and improving the flexibility of data transmission.
Inventors:
ZHANG LONG (CN)
HUANG FANFU (CN)
WANG XINGHE (CN)
HUANG FANFU (CN)
WANG XINGHE (CN)
Application Number:
PCT/CN2019/126073
Publication Date:
June 25, 2020
Filing Date:
December 17, 2019
Export Citation:
Assignee:
HANGZHOU HIKVISION DIGITAL TEC (CN)
International Classes:
H04L1/16
Domestic Patent References:
| WO2016115916A1 | 2016-07-28 |
Foreign References:
| CN101222311A | 2008-07-16 | |||
| CN101222311A | 2008-07-16 | |||
| CN101146341A | 2008-03-19 | |||
| CN101146341A | 2008-03-19 |
Attorney, Agent or Firm:
BEIJING SAN GAO YONG XIN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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