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Method for judging reverse data packet byte loss

A data packet and reverse technology, applied in the field of mobile communication, can solve the problems of reverse data packet retransmission and affect the reverse communication rate, etc., to reduce the calculation pressure, avoid the loss of reverse bytes, and speed up Effect

Inactive Publication Date: 2008-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the reverse data packet B is only delayed, which will cause unnecessary retransmission of the reverse data packet and affect the rate of reverse communication.

Method used

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  • Method for judging reverse data packet byte loss
  • Method for judging reverse data packet byte loss
  • Method for judging reverse data packet byte loss

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The core idea of ​​the present invention is that, for out-of-order reverse data packets, firstly calculate the waiting time, and judge whether byte loss in the data packet occurs according to the waiting time.

[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] Please refer to figure 2 , figure 2 It is a flow chart of calculating the waiting time provided by the present invention. For ease of understanding without loss of generality, the figure 1 The shown reverse data packet C is taken as an example to illustrate the calculation process. according to figure 1 , from an intuitive point of view, the reverse data packet C does not need to wait for the reverse data packet A, but needs to wait for the reverse data packet B.

[0046] In step 201, the reverse data packet w...

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PUM

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Abstract

This invention discloses a method for judging the lost of rverse data packet bytes including two methods: 1, deciding the waiting time length of the reverse data packet successful in decoding currently and judging if the reverse bytes are received sent before the byte in the current reverse data packet, if not, then it is assured that the reverse bytes are lost, 2, setting a packet buffer-storage queue including: deciding the waiting time length of the reverse data packet successful in decoding currently and putting said packet in a packet buffer-storage queue then selecting out the data packet successful in decoding and the packet before it as the ordered reverse data packets and judging if there are lost bytes, if so, then it is determined that the reverse bytes are lost.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a method for judging the byte loss of reverse data packets. Background technique [0002] The new data service (Evolution Data Optimized, EV-DO) of the Code Division Multiple Access (CDMA) 2000 system has been developed from the original Rev 0 version to Rev A version. figure 1 It shows the effect when the base station as the receiver receives the reverse data packet sent by the mobile terminal as the sender in EV-DO Rev A. [0003] In EV-DO Rev A, on the mobile terminal, each reverse data packet to be sent is divided into 4 sub-packets, the first sub-packet carries all the valid information and some redundant information of the original data packet, and the other The three data packets all carry redundant information to help decoding; at the same time, there are three interleaving numbers of 0, 1, and 2, which are used to send sub-packets belonging to three different reverse d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
Inventor 敬晓云
Owner HUAWEI TECH CO LTD
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