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Addressing method and addressing device for cell handover

A technology of cell switching and addressing, which is applied in the field of communication, can solve the problems of inaccurate location, low accuracy of addressing in the process of cell switching, and inability to find mobile anchor points, etc., to achieve the effect of improving the accuracy of addressing

Active Publication Date: 2017-05-24
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0025] After the mobility anchor point is introduced into the communication system, the mobility anchor point will generally be deployed between the DeNB and the MME of the UE (such as figure 1 or figure 2 As shown), the DeNB is no longer directly connected to the MME of the UE, that is, the mobility anchor shields the topological relationship between the DeNB and the MME of the UE, so that the target MME may not be able to find a suitable mobility anchor during cell handover. The mobility anchor may also fail to accurately send handover-related signaling to the correct mobile RN, resulting in low addressing accuracy during cell handover

Method used

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  • Addressing method and addressing device for cell handover
  • Addressing method and addressing device for cell handover
  • Addressing method and addressing device for cell handover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Embodiment 1 of the present invention provides an addressing method for cell handover. The method provides a specific implementation process for the process of addressing the mobile RN by the mobility anchor point and the process of addressing the mobility anchor point by the target MME. The main principles based on the two implementation processes are as follows:

[0060] 1. The process of addressing the mobile anchor by the target MME

[0061] The target MME addresses the mobility anchor, that is, the target MME determines the target mobility anchor after receiving the handover request message. Wherein, the handover request message carries the cell identity information of the target cell to which the UE is to handover, that is, the TAI of the target cell and the global base station identity. Wherein, the process of determining the target MME for UE handover is an existing process, which will not be described in detail here.

[0062] Specifically, the target MME dete...

Embodiment 2

[0099] Embodiment 2 aims at the addressing method in the cell handover process provided in Embodiment 1 above, and provides specific implementation processes of the addressing method in several specific application scenarios.

[0100] In the application scenario provided by the second embodiment, it is mainly based on the following two pre-configurations:

[0101] 1. Configure the global base station identity of the mobile RN to be the same as the global base station identity of the mobile anchor point to which it belongs. When the target MME addresses the mobile anchor point, the MME can address the unique mobility anchor point according to the global base station identity of the target cell; or

[0102] 2. Configure the TAI of each mobility anchor point to be different from each other. When the target MME addresses the mobility anchor point, the MME can address the unique mobility anchor point according to the TAI of the target cell.

specific Embodiment 1

[0104] The application scenario corresponding to the specific embodiment 1 is based on the situation that the S1 interface is directly established between the mobile RN and the mobility anchor, and the mobility anchor addresses the mobile RN based on ECGI, and the ECGI corresponding to the mobile RN is configured by OAM.

[0105] Figure 4 A schematic flow diagram of cell configuration and addressing in the specific embodiment 1 is shown, specifically, it mainly includes the following steps:

[0106] Step 401, after the mobile RN is registered in the network, the operator (specifically, through the OAM system) configures the global base station ID for the mobile RN to be equal to the global base station ID of the mobile anchor point to which it belongs.

[0107] Specifically, the ECGI corresponding to the mobile RN refers to the ECGI used by the mobile RN on the Uu interface. The mobile RN can obtain the ECGI used by the mobile RN on the Uu interface from the OAM, and the OAM ...

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Abstract

Disclosed are an addressing method for cell handover, and an addressing device. After receiving a handover request message, a mobility anchor can determine a destination mobile RN to which the mobility anchor is handed over according to an ECGI carried in the received handover request message, of a destination cell, or the mobility anchor determines a destination mobile RN to which the mobility anchor is handed over according to a global base station identity carried in the received handover request message, of the destination cell. According to the technical solution, the mobility anchor can accurately determine the destination mobile RN according to the ECGI of the destination cell to which the mobility anchor is handed over and send handover related signaling to the determined mobile RN, thereby improving the accuracy of the addressing during the cell handover.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to an addressing method and an addressing device for cell switching. Background technique [0002] In the Long Term Evolution-Advanced (LTE-A) system, a relay node (RN) is introduced to increase network coverage, and the RN is wirelessly connected to a donor base station (Donor evolved Node B, DeNB). At present, an important aspect of RN application is application in high-speed mobile environments such as railways. By deploying RN in high-speed mobile environments, the signal quality in the vehicle body can be enhanced, and user equipment (UE) can also be reduced through group switching. The number of handovers can also reduce the number of UE location updates. Generally, RNs deployed in high-speed mobile environments are called mobile RNs. [0003] In order to better support the mobility of the RN, a node that provides a mobility anchor function can be introduce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08H04W36/00
CPCH04W8/08H04W36/0061H04W80/04
Inventor 杨义焦斌汪颖鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD