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Method for supporting user equipment transferability in LTE system

A mobility and user-friendly technology, applied in the direction of transmission system, electrical components, radio/inductive link selection and arrangement, etc., can solve problems such as poor upgradeability, long call establishment time, complex system structure, etc.

Inactive Publication Date: 2007-03-21
BEIJING SAMSUNG TELECOM R&D CENT +1
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Problems solved by technology

[0017] 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

[0044] In the present invention, taking the LTE system structure of Fig. 4 as an example to describe the method for UE to move between two ENBs, 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.

[0045] FIG. 5 shows method 1 of UE moving from one ENB to another ENB in ​​connected mode. The feature of this method is that there is a process of preparing radio resources in advance before the UE actually switches to a ne...

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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 to measurement report received from UE and sending resource request message to destination ENB, sending resource report message to source ENB by destination ENB and sending distributed resource to source ENB, sending UE logon message to EGGSN for making 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 structure of the existing Third Generation Partnership Project (hereinafter referred to as 3GPP) is shown in FIG. 1 . The following is a description of the 3GPP system structure in Fig. 1 . [0003] 101 User equipment (hereinafter referred to as UE) is a terminal device for receiving data. 102 NodeB is a node responsible for wireless reception / transmission in the radio network subsystem (abbreviated as RNS). 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 (hereinafter referre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04L29/06H04W36/08H04W36/38H04W92/20
Inventor 许丽香李小强
Owner BEIJING SAMSUNG TELECOM R&D CENT
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