Data packet retransmission method, data packet receiving method and device
A data packet and data technology, applied in digital transmission systems, transmission systems, error prevention/detection using return channels, etc., can solve problems such as resource waste, and achieve the effect of reducing resource waste and data volume
Active Publication Date: 2016-08-17
XFUSION DIGITAL TECH CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In the above retransmission process, the sender will retransmit the first error packet and other packets that have been sent after the first error packet, but in fact some packets do not need to be retransmitted. Therefore, the existing QPI The retransmission mechanism will cause waste of resources
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0035] figure 1 It is a flowchart of a data packet retransmission method provided by an embodiment of the present invention. Such as figure 1As shown, the data packet retransmission method in this embodiment includes:
[0036] Step 101: Receive a retransmission request, the retransmission request is sent by the sender, and the retransmission re...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a data packet retransmission method, a data packet receiving method, and a data packet receiving device. The retransmission method comprises: receiving a retransmission request comprising a packet reception total sequence number corresponding to a data packet of which retransmission is requested; according to mapping between the packet reception total sequence number corresponding to the data packet of which retransmission is requested and a packet transmission sequence number of each message type and mapping between a locally stored packet transmission total sequence number and a packet transmission sequence number of each message type, acquiring a message type of the data packet of which retransmission is requested and a packet transmission sequence number in the message type; and according to the acquired message type of the data packet of which retransmission is requested and the packet transmission sequence number in the message type, retransmitting to a receiving end the data packet of which retransmission is requested and subsequently sent data packets that have the same message type as the data packet of which retransmission is requested. The technical solution of the present invention can retransmit data packets of the same type only, thereby reducing the data traffic for retransmission and lowering resource waste caused by a retransmission mechanism.
Description
technical field [0001] The invention relates to link retransmission technology, in particular to a data packet retransmission method, a data packet receiving method and a device. Background technique [0002] The Quick Path Interconnect (QPI) is the data exchange between the Central Processing Unit (Central Processing Unit, CPU) and the CPU, between the CPU and the Input Output Hub (Input Output Hub, IOH), and even between the CPU and the remote memory. important highway. [0003] Existing QPI implementation solutions include QPI protocol layer (Upper Layer), link layer (Link Layer) and physical layer (Physical Layer). QPI has two data packet paths, one is the data sending path and the other is the data receiving path. For the transmission path: the local protocol layer sends the data packets to the link layer; the link layer sends these packets to the physical layer and also stores them in the retransmission buffer; the local physical layer sends these packets to the remo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
CPCH04L1/1887
Inventor 杨荣玉王海彬
Owner XFUSION DIGITAL TECH CO LTD