Switching method and switching system

A handover system and user technology, applied in the field of E-UTRAN, can solve the problems of increasing handover delay and complicated handover process, and achieve the effect of reducing handover delay and simplifying handover process.

Inactive Publication Date: 2012-12-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a Mobility Management Entity (MME, Mobility Management Entity) is required for access control, in general, only the S1 handover process can be used for handover to HeNB. The existing S1 handover process needs to exchange signaling with the core network for access control, so that the handover The process is too complicated, which increases the switching delay

Method used

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  • Switching method and switching system

Examples

Experimental program
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Effect test

no. 1 example

[0082] The first embodiment, this embodiment describes the scenario where the MME sends access control related information to the access side during the initial access process for handover optimization. Such as Figure 5 shown, including the following steps:

[0083] Step 500: UE sends an attach request (Attach Request) message to a source access side such as eNB or HeNB (herein referred to as (H)eNB for short), so as to initiate an initial access procedure.

[0084] In this step, if the base station serving the UE is a macro base station, after receiving the Attach Request message, the eNB directly forwards the received Attach Request message to the MME;

[0085] If the base station serving the UE is a home base station, and the HeNB is directly connected to the MME, the HeNB directly sends the Attach Request message to the MME; if the HeNB is connected to the MME through the HeNB GW, the HeNB first sends the Attach Request message to the HeNB GW, The HeNB GW then sends the...

Embodiment 2

[0095] Embodiment 2. This embodiment describes a handover optimization scenario in which the MME sends access control related information to the access side during the handover process, and the eNB performs access control. Such as Figure 6 shown, including:

[0096] Step 600: UE is handed over from access side 1 to access side 2 through S1 or X2 handover process. During the handover process, the MME sends UE's access control related information to access side 2.

[0097] If the UE is handed over from access side 1 to access side 2 through the S1 handover process, the MME sends the UE's access control related information to the access side 2 through the S1 handover request (Handover Request) message; A message, such as an Access Control Information Transfer (Access Control Information Transfer) message, sends the UE's access control-related information to the access side 2;

[0098] If the UE is handed over from access side 1 to access side 2 through the X2 handover process,...

no. 3 example

[0103] The third embodiment, this embodiment describes the scenario where the MME sends the access control related information to the access side during the handover process, and the HeNB performs the handover optimization of the access control. The specific process is as Figure 6 As shown, it will not be repeated here.

[0104] According to the third embodiment, the E-UTRAN architecture of the HeNB performing access control scenario is as follows: Figure 8 As shown, HeNB2 can be directly connected to MME, or connected to MME through HeNB GW1. Roughly includes: firstly, UE is handed over from (H)eNB1 to HeNB2, assuming that this handover is realized through S1 handover or X2 handover procedure, however, during this handover process, HeNB2 uses the method of the second embodiment of the present invention, During this handover process, the access control information of the UE is received and stored; then, the UE initiates a handover from HeNB2 to HeNB3, where HeNB3 can be di...

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Abstract

The invention discloses a switching method and a switching system. The switching method includes that a mobility management entity sends relevant access control information of users to an access-side network element, and the access-side network element realizes access control when the users switch to target cells according to the relevant access control information. According to the switching method, the relevant access control information is sent to the access-side network element in advance by a core network element, the users can complete switching at an access network as needed, interaction with the core network is omitted, and accordingly a switching process is simplified and switching delay is reduced.

Description

technical field [0001] The present invention relates to the E-UTRAN technology deployed with home base stations, and in particular to a handover method and system. Background technique [0002] Femtocells are small, low-power base stations that are mainly used in small-scale indoor places such as homes and offices. Femtocells are connected to the core network of mobile operators through wired access equipment such as indoor cables, digital subscriber lines (DSL) or optical fibers, and provide specific users with access services based on wireless mobile communication networks. The femtocell is an effective supplement to the existing network deployment. It can effectively improve the coverage of indoor voice and high-speed data services. It has many advantages, such as low cost, low power, simple access, plug and play, saving backhaul, and existing Terminal compatibility, improve network coverage, etc. [0003] In a Long Term Evolution (LTE, Long Term Evolution) system, a ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/24
Inventor 谢峰奚进黄莹陈琳祝建建翟恒星
Owner ZTE CORP
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