Method, system and apparatus for the operation of reordering and repeated elimination

A technology of repetition elimination and reordering, applied in the field of communication, can solve the problems of disorder, increase the amount of calculation, inaccurate value, etc., and achieve the effect of avoiding deadlock and inaccurate time setting.

Active Publication Date: 2010-03-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially to solve the increased calculation amount or disorder generated due to the inaccurate value when the Flush_timer timer is used to control the reordering and duplicate elimination operations in the prior art question

Method used

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  • Method, system and apparatus for the operation of reordering and repeated elimination
  • Method, system and apparatus for the operation of reordering and repeated elimination
  • Method, system and apparatus for the operation of reordering and repeated elimination

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0036] For the downlink and uplink, the out-of-order situations are different, and the reasons for the out-of-order will be briefly introduced below.

[0037] For downlink:

[0038] In the downlink, for the DRB (Data Radio Bearer, data radio bearer) mapped to the RLC AM, the main task to be completed by PDCP during the handover process is that the source eNB forwards the following three types of PDCP SDUs through the X2 / S1 interface (forwarding ) to the target eNB, and then sent to the UE by the target eNB. The three types of PDCP SDUs...

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Abstract

The invention provides a method for controlling the operation of reordering and repeated elimination, includes the following steps: a receiving end receiving the sequence number SN of the upper boundary after receiving, wherein, the upper boundary SN is the upper boundary of SN of Packet Data Convergence Protocol Service Data Unit PDCP SDU where disorder may occur; the receiving end determining the termination time of the operation of reordering and repeated elimination based on the received upper boundary SN. By the transmission of the upper boundary SN, the receiving end determines the termination time of the operations of reordering and repeated elimination based on the upper boundary SN, so that the Flush-timer timer in the prior art is not needed, thereby avoiding the technology defect caused by inaccurate timing length setting of the Flush-timer timer.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for controlling reordering and duplicate elimination operations. Background technique [0002] In order to ensure a high competitiveness in a longer period of time, the 3GPP (Third Generation Partnership Project, Third Generation Partnership Project) has launched a research project on LTE (Long Term Evolution, Long Term Evolution) of 3G radio interface technology. [0003] In the LTE system, data forwarding between eNBs (evolved base stations) during handover is mainly completed by a PDCP (Packet Data Converge Protocol, data convergence protocol) layer. In non-handover, the RLC (Radio Link Control, radio link control) AM receiving entity processes the data received from the sending entity (forms RLC SDU) and submits it to the receiving entity PDCP layer in sequence. For the downlink , the receiving entity is a UE (User Equipment), and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L12/56H04L47/2466
Inventor 赵毅李国庆刘佳敏
Owner DATANG MOBILE COMM EQUIP CO LTD
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