Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and device for handover between different menbs in a small cell system

A device and switching request message technology, applied in connection management, wireless communication, electrical components, etc., can solve the problems of frequent bearer reconfiguration, failure to effectively use dual connections to improve system capacity, UE data transmission speed, etc., to reduce unnecessary Deletion and re-establishment, reducing data forwarding, and avoiding the effect of deleting bearers

Active Publication Date: 2021-06-01
BEIJING SAMSUNG TELECOM R&D CENT +1
View PDF3 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for handover between different menbs in a small cell system
  • A method and device for handover between different menbs in a small cell system
  • A method and device for handover between different menbs in a small cell system

Examples

Experimental program
Comparison scheme
Effect test

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 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present application discloses a method for handover between different MeNBs in a small cell system, including: during the handover, the source primary base station and / or the destination primary base station decides whether to maintain the secondary base station; and triggers different Switching process. The present application also provides a corresponding handover device between different MeNBs in a small cell system. The method and device for handover between different MeNBs in the small cell system provided by the present invention can reduce unnecessary deletion and re-establishment of UE bearers on the secondary base station, avoid erroneous deletion of bearers, reduce data forwarding, and can be deployed according to the network The SeNB is maintained according to the actual situation, and SGW reselection is supported, thereby improving system capacity and data transmission speed.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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