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Method of building radio bearer in dual-connection network and system

A bearer establishment and wireless bearer technology, applied in wireless communication, connection management, electrical components, etc., to achieve the effect of ensuring normal business transmission, reducing changes, and simple implementation methods

Inactive Publication Date: 2015-07-22
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the 3C architecture, there is no S1 interface between SeNB and MME, so it is impossible to establish a DRB between SeNB and UE by sending a bearer establishment request from MME to SeNB according to the existing LTE system bearer establishment process

Method used

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  • Method of building radio bearer in dual-connection network and system
  • Method of building radio bearer in dual-connection network and system
  • Method of building radio bearer in dual-connection network and system

Examples

Experimental program
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Effect test

Embodiment 1

[0076] In this embodiment, the newly established EPS bearer is offloaded. For this situation, refer to Figure 5 , the method of this embodiment includes:

[0077] 1. The PGW sends a bearer establishment request to the SGW;

[0078] 2. The SGW sends a bearer establishment request to the MME;

[0079] 3. When the MeNB receives the bearer establishment request sent by the MME, the MeNB will first judge whether it is necessary to trigger the DRB establishment process between the SeNB and the UE.

[0080] MeNB can comprehensively consider based on factors such as its own load, service quality and channel quality, UE measurement report results or combined with SeNB load, service quality and channel conditions at this time, and judge whether to trigger SeNB to establish a DRB. The specific trigger conditions depend on MeNB realization.

[0081] 4. If it is judged that the trigger condition for SeNB to establish a DRB is met, MeNB sends a bearer establishment instruction to SeNB, ...

Embodiment 2

[0089] To offload the established EPS bearer, in this case, the method of this embodiment only needs to execute steps 3 to 8 in embodiment 1, but step 3 is different from that in embodiment 1, and does not need to accept the bearer establishment sent by the MME The request is actively triggered by the MeNB. Step 3 of this embodiment includes: the MeNB judges whether it is necessary to trigger the DRB establishment process between the SeNB and the UE. The MeNB can report the results of the UE measurement or combine the SeNB according to factors such as its own load, service quality, and channel quality. At this time, factors such as load, service quality, and channel conditions are considered comprehensively to determine whether to trigger the SeNB to establish a DRB, and the specific trigger conditions depend on the implementation of the MeNB.

[0090] In this embodiment, after the SeNB completes the DRB establishment process, the MeNB does not need to feed back information to ...

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PUM

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Abstract

The invention discloses a method of building a radio bearer in a dual-connection network and a system, which relates to the technical field of radio communication. The problem of building a DRB (Data Radio Bearer) between a SeNB and UE in the dual-connection network by adopting a 3C frame can be solved. In certain trigger conditions, a MeNB can initiate a DRB building process between the SeNB and the UE, whether the MeNB carries out an EPS (Evolved Packet System) bearing shunt process and when the MeNB carries out the EPS bearing shunt process have no influence on core network processing, changes on the prior system are reduced maximally, the realization method is simple, advantages of the dual-connection technology are used thoroughly, and normal service transmission of the user can be ensured.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and system for establishing a radio bearer in a dual connectivity network. Background technique [0002] Dual-connection network is a research hotspot in current wireless communication technology. The network architecture is as follows: figure 1 shown. In this kind of network, the user terminal (UE) maintains an air interface connection with the macro base station (MeNB) and the micro base station (SeNB) at the same time, which means that the macro base station and the micro base station can provide services for the UE at the same time. By using dual connectivity communication, when the UE moves inside the macro cell and enters or leaves a small cell, the handover process may not be performed, but the macro base station uses the resource reconfiguration process to configure or release small cell resources for the UE. The relevant control process ...

Claims

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Application Information

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IPC IPC(8): H04W76/02
CPCH04W76/10H04W76/15
Inventor 林佩潘瑜高兴航高伟东陈喆
Owner POTEVIO INFORMATION TECH
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