Method for determining type of data packet and device thereof

A data packet and type technology, applied in the field of communication, can solve the problem of reducing the receiving quality of the receiving end, and achieve the effect of improving the receiving quality

Inactive Publication Date: 2009-09-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The embodiment of the present invention provides a data packet type judgment method and its device, which can solve the problem of discarding valid data packets and reducing the reception quality of the receiving end in the prior art

Method used

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  • Method for determining type of data packet and device thereof
  • Method for determining type of data packet and device thereof
  • Method for determining type of data packet and device thereof

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0023] In the first embodiment of the present invention, the receiving end sets the judgment timer T_Dup, and the duration can be uniformly set according to the minimum retransmission interval RTT of the HARQ mechanism of the system and the system delay requirements. When the receiving end receives the RLC PDU i Falls within the reordering window, and the RLC PDU i When the sequence number is different from the sequence number of the rece...

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Abstract

The invention discloses a method for determining the type of a data packet. The method comprises the following steps: setting a determination timer; and determining the type of a newly received data packet according to the operation state of the determination timer and a sequence number of the newly received data packet when the newly received data packet drops in a reordering window, thereby distinguishing that whether the newly received RLC PDU is a repeated invalid data packet or a new effective data packet. The invention also discloses a device for determining the type of the data packet, which avoids the problem that the effective data packet is abandoned in the prior technical proposal, and improves the receiving quality of a receiving terminal.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method and device for judging data packet types in a communications system. Background technique [0002] The LTE (Long Term Evolution) project is mainly aimed at the mobile communication system architecture that the 3GPP organization intends to promote in the next 10 years, E-UTRAN (Evolved Universal Terrestrial Radio Access Network, evolved UMTS terrestrial radio access network), which is currently A set of system architecture evolved on the UMTS standard. [0003] figure 1 It is a schematic diagram of the user plane protocol architecture of the E-UTRAN system in the prior art. Such as figure 2 As shown, the layers from top to bottom are: PDCP (Packet Data Convergence Protocol, packet data convergence layer), RLC (Radio Link Control, radio link control layer), MAC (Medium Access Control, media access control layer) ) And PHY (Physical Layer, physical layer). [0004] The R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L12/56H04L12/861H04L29/06
Inventor 高闻
Owner HUAWEI TECH CO LTD
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