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

A technique for eliminating duplication and reordering, applied in the field of communication, can solve problems such as increased calculation, out-of-sequence, and inaccurate values, and achieve the effect of avoiding inaccurate duration settings and deadlocks

Active Publication Date: 2012-12-26
DATANG MOBILE COMM EQUIP CO LTD
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  • 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] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

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

[0037] For downlink:

[0038] In the downlink, for the DRB (Data Radio Bearer) mapped to the RLC AM, the main task of 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 by the target eNB to the UE. The three t...

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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 technologies, and in particular, to a method, system and device for controlling reordering and duplication elimination operations. Background technique [0002] In order to ensure high competitiveness for a longer period of time, 3GPP (Third Generation Partnership Project, Third Generation Partnership Project) has started a LTE (Long Term Evolution, Long Term Evolution) research project of 3G wireless interface technology. [0003] In the LTE system, data forwarding between eNBs (evolved base stations) in the handover process is mainly completed by the PDCP (Packet Data Converge Protocol, data convergence protocol) layer. During non-handover, the RLC (Radio Link Control, Radio Link Control) AM receiving entity processes the data received from the transmitting entity (to form RLC SDU) and submits it to the receiving entity PDCP layer in sequence. For downlink , the receiving entity is UE (user...

Claims

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Application Information

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Patent Type & Authority Patents(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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