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Data transmission with re-transmission demand and method for presenting receiving-end state report

A status report and retransmission request technology, applied in the field of communication, can solve problems such as inaccurate identification, segment sequence numbering, etc., and achieve the effects of improving system performance, fast data transmission, and reducing waste

Active Publication Date: 2011-09-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fragments of such ordered data units cannot be accurately identified with only a sequence number, and this problem cannot even be solved by sequentially numbering the fragments, because in a possible retransmission, these fragments also have the same Possibility of split

Method used

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  • Data transmission with re-transmission demand and method for presenting receiving-end state report
  • Data transmission with re-transmission demand and method for presenting receiving-end state report
  • Data transmission with re-transmission demand and method for presenting receiving-end state report

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Embodiment Construction

[0049] The invention discloses a data transmission method with a retransmission request and a receiving end status report preparation method. The data transmission supports dividing or cascading ordered data units to be sent into sending units and sending them in an orderly manner. The data transmission method is one of the basic transmission forms used by the wireless access network. The ordered data unit should be understood in a broad sense, including the data unit that needs to be sent initially and / or the data block that needs to be retransmitted. The data block Segments comprising undivided ordered data units and divided ordered data units. The basic idea of ​​the present invention is to accurately describe the position information of the data block in the receiving sequence by adding the segment sequence number parameter in addition to the sequence number of the ordered data unit in the preparation of the status report. The segment sequence number is the sequence number...

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Abstract

The method comprises: adding the parameters of the segmentation serial number into the method for editing state report, which is used for accurately describing the location information of data bock in the receiving sequence; the description of said location information has historical inheritance so as to make the confirmation of data block no longer being affected by the segmentation times. By the invention, the sending end can accurately learn the data content to be transmitted.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data transmission method with a retransmission request and a method for preparing a status report at a receiving end. The invention is particularly suitable for the evolution of wireless interface standards in communication networks. Background technique [0002] From the early 1990s to the present, the technical specification of WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access) system has gone through the stages of Release99, Release4, Release5, and Release6. Currently, the standardization work on Release7 has been completed. Started. At the same time, research on longer-term LTE (Long Term Evolution, long-term evolution) has gradually become a new focus of standardization work. The goal of the currently discussed Release7 protocol is to further improve system performance and provide users with services with higher speed and better ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04L29/06
CPCH04L1/1607
Inventor 邵飞
Owner HUAWEI TECH CO LTD