Method and device for switching different MeNBs in small cell system

A small cell and auxiliary cell technology, applied in connection management, wireless communication, electrical components, etc., can solve the problems of not effectively using dual connections to improve system capacity, UE data transmission speed, frequent bearer reconfiguration, etc., to reduce unnecessary Deletion and re-establishment, reducing data forwarding, and avoiding the effect of deleting bearers

Active Publication Date: 2016-11-23
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the bearer is frequently reconfigured, and the dual connection is not effectively used to improve the system capacity and the data transmission speed provided to the UE.

Method used

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  • Method and device for switching different MeNBs in small cell system
  • Method and device for switching different MeNBs in small cell system
  • Method and device for switching different MeNBs in small cell system

Examples

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Embodiment 1

[0163] The signaling flow chart of Embodiment 1 of the present invention is as follows Figure 7 shown. exist Figure 3 to Figure 6 Methods 1 to 4 have described in detail how to decide whether to maintain the SeNB, so how to determine whether to maintain the SeNB will not be described in detail in this embodiment. This embodiment mainly describes how to solve the second to sixth problems raised by the present invention. Figure 7 The flow shown includes steps:

[0164] Step 701, the source primary base station sends a handover request to the target primary base station, and the handover request message may include: information of the source secondary base station, identification information of the UE in the secondary base station, bearers of the UE in the secondary base station, and whether these bearers are split bearers or SCG Carrying information, etc. This step is the same as step 303 and will not be repeated here.

[0165] For the situation that there is no SeNB cha...

Embodiment 2

[0204] The signaling flow chart of Embodiment 2 of the present invention is as follows Figure 8 shown. exist Figure 3 to Figure 6 Methods 1 to 4 have described in detail how to decide whether to maintain the SeNB, so how to determine whether to maintain the SeNB will not be described in detail in this embodiment. This embodiment mainly describes how to solve the second to sixth problems raised by the present invention. Figure 8 The flow shown includes steps:

[0205] Step 801, the source primary base station sends a handover request to the target primary base station, and the handover request message may include: information of the source secondary base station, identification information of the UE in the secondary base station, bearers of the UE in the secondary base station, and whether these bearers are split bearers or SCG Carrying information, etc. This step is the same as step 303 and will not be repeated here.

[0206] For the situation that there is no SeNB cha...

Embodiment 3

[0249] The signaling flow chart of Embodiment 3 of the present invention is as follows Figure 9 shown. exist Figure 3 to Figure 6 How to decide whether to keep the secondary base station has been described in detail in method 1 to method 4 respectively. Therefore, how to decide whether to maintain the secondary base station will not be described in detail in this embodiment. This embodiment mainly describes how to solve the second to sixth problems raised by the present invention. Figure 9 The flow shown includes steps:

[0250] In step 901, the source master base station sends a handover request to the destination master base station. This step is the same as step 303 and will not be repeated here.

[0251] For the situation that there is no SeNB change during handover between different MeNBs, the source SeNB is also the target SeNB. Therefore, the source SeNB, the target SeNB and the SeNB refer to the same base station, that is, refer to the second base station that ...

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Abstract

The invention discloses a method for switching different MeNBs in a small cell system. The method comprises the following steps: during switching, deciding whether to keep an auxiliary base station by a source main base station and / or a destination main base station; and triggering different switching processes according to a decision result of whether to keep the auxiliary base station. The invention further provides a corresponding device for switching different MeNBs in the small cell system. By adopting the method and the device for switching different MeNBs in the small cell system, unnecessary deletion and reestablishment of a UE bearer on the auxiliary base station can be reduced, wrong bearer deletion is avoided, data forwarding is reduced, SeNB can be maintained according to the actual situation of network deployment, and SGW reselection is supported, so that the system capacity and the data transmission speed are increased.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a method and equipment for switching between different MeNBs in a small cell (Small cell) system. Background technique [0002] Modern mobile communication tends to provide users with high-speed multimedia services, such as figure 1 Shown is the system architecture diagram of System Architecture Evolution (SAE). in: [0003] User Equipment (UE) 101 is a terminal device for receiving data. Evolved Universal Terrestrial Radio Access Network (E-UTRAN) 102 is a radio access network including macro base stations (eNodeBs / NodeBs) that provide UEs with an interface to access the radio network. Mobility Management Entity (MME) 103 is responsible for managing UE's mobility context, session context and security information. Serving Gateway (SGW) 104 mainly provides user plane functions, and MME 103 and SGW 104 may be in the same physical entity. The packet data network gate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/08H04W36/30
CPCH04W36/08H04W36/0069H04W76/15H04W36/0058H04W76/11H04W36/0061H04W36/0094H04W36/18H04W36/38
Inventor 许丽香柯小婉王弘
Owner BEIJING SAMSUNG TELECOM R&D CENT
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