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Reception confirmation processing method and base station

A processing method and technology for receiving acknowledgment, applied in network traffic/resource management, digital transmission system, error prevention and other directions, which can solve the problems of TCP retransmission data misjudgment and packet loss, reduction of transmission traffic, etc.

Inactive Publication Date: 2014-10-22
深圳市恒程汇文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an ACK processing method and a base station, which solves the problem of a decrease in sending flow due to misjudgment of the cause of packet loss when TCP is used to retransmit data

Method used

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  • Reception confirmation processing method and base station
  • Reception confirmation processing method and base station
  • Reception confirmation processing method and base station

Examples

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Embodiment Construction

[0049] Use the TCP protocol to transmit packets when the signal quality of the traditional base station is not good. If TCP packet No. 1 is lost on the wireless network link, then when the second and third packets arrive at the receiving end, the receiving end will repeatedly generate a pair of packet 1 ACK with number 1, repeated ACKs are transmitted to the sender, the sender finds that the message is lost, and retransmits message 1, reliable transmission is guaranteed, but at the same time, the sender has received the same ACK multiple times No. 1), it is considered that the network is congested, and the sending window is halved.

[0050]HARQ can also be used to retransmit the message, but if HARQ is only used, the base station has not received the confirmation of the message No. 1 after sending the TCP message No. 2 and No. 3. Lost TCP packet number 1. But before this, message No. 2 and message No. 3 have been sent to the receiving end, and the receiving end will generate ...

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Abstract

An acknowledgement processing method and a base station are provided in the invention. The invention relates to the field of mobile communications and solves the problem of transmission traffic reduction caused by the misjudgement of packet loss when retransmitting data using TCP. The method comprises: after determining the validity of the received ACK, querying the ACK duplicate times of the ACK, wherein the ACK duplicate times is stored in the ACK control block which matches the ACK; if the ACK duplicate times does not reach to the preset restraint threshold, adding one time to the ACK duplicate times and discarding the ACK. The technical solution provided in the invention is applicable to the network using the hybrid automatic repeat request (HARQ) retransmission mechanism.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method for processing acknowledgment (ACK) and a base station. Background technique [0002] The wireless network is affected by various interference factors in the transmission environment, and the link quality is difficult to be guaranteed. Through the transmission control protocol (Transmission Control Protocol, TCP) technology, the application layer sends a data stream represented by 8-bit bytes for inter-network transmission to the TCP layer, and then divides the data stream into messages of appropriate length at the TCP layer Segment, pass the result packet to the IP layer, and transmit the packet to the TCP layer of the receiving end entity through the network. In order to ensure that no packet loss occurs, a sequence number is assigned to each segment at the TCP layer, and the sequence number also ensures that the packets sent to the receiving entity are rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04W28/04H04W88/08
CPCH04L1/1867
Inventor 刘军吴立杰
Owner 深圳市恒程汇文化科技有限公司