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Method for supporting user equipment transferability in LTE system

A Mobility, User Technology

Active Publication Date: 2012-10-24
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0018] The existing 3GPP system structure has many shortcomings such as poor upgradeability, long call establishment time, and complex system structure. Therefore, the 3GPP standardization organization is working on the standardization of LTE

Method used

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  • Method for supporting user equipment transferability in LTE system
  • Method for supporting user equipment transferability in LTE system
  • Method for supporting user equipment transferability in LTE system

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Embodiment Construction

[0045] In the present invention, the Figure 4 The LTE system structure of the present invention is used as an example to describe the method for the UE to move between two ENBs. Here, the interface between the ENB and the UE is called the air interface (hereinafter referred to as Uu), that is, the interface between the original RNC and the UE. The interface between the ENB and the EGGSN is the Iu+ interface (the original interface between the RNC and the SGSN is the Iu interface). The interface between ENBs is the Iur interface. The focus of the present invention lies in the forwarding method of Iur interface data, if the system structure of LTE changes in the future, for example, EGGSN is divided into two network entities of control plane and user plane, this invention is also applicable.

[0046] Figure 5 Method 1 of moving from one ENB to another ENB for UE in connected mode. The feature of this method is that there is a process of preparing radio resources in advance ...

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Abstract

A method for supporting movement of user device in LTE system includes deciding to switch over UE to cell of another destination ENB by source ENB according measurement report received from UE and sending resource request message to destination ENB, sending resource response message to source ENB by destination ENB and sending distributed resource to source ENB, sending UE logon message to EGGSN for carrying out logon by destination ENB, sending switch-over command to UE by source ENB and receiving switch-over finish message from UE by destination ENB.

Description

technical field [0001] The present invention relates to a method for supporting user equipment mobility in a mobile communication system long-term evolution (hereinafter referred to as LTE) system proposed by the Third Generation Partnership Project (hereinafter referred to as 3GPP). Background technique [0002] The existing structure of the Third Generation Partnership Project (hereinafter referred to as 3GPP) is as follows: figure 1 shown. Below is the right Figure 13 Description of the structure of the GPP system. [0003] 101 User equipment (hereinafter referred to as UE) is a terminal device for receiving data. 102NodeB is a node in the radio network subsystem (abbreviated as RNS) responsible for wireless reception / transmission. 103 Controlling Radio Network Controller (hereinafter referred to as CRNC) is a radio network controller that directly controls the NodeB. The interface between RNC and UE is called air interface. 104 Serving Radio Network Controller (he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W36/08H04W36/38H04W92/20
Inventor 许丽香李小强
Owner BEIJING SAMSUNG TELECOM R&D CENT
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