Method and system for establishing data radio bearer (DRB)

A wireless bearer and establishment method technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as no data wireless bearer

Active Publication Date: 2010-09-29
北京万海云科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Although the above-mentioned RN start-up process and UE bearer establishment process are given in the prior art, there is no solution on how to establish a data radio bearer (DRB, DataRadio Bearer) when the RN starts up

Method used

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  • Method and system for establishing data radio bearer (DRB)
  • Method and system for establishing data radio bearer (DRB)
  • Method and system for establishing data radio bearer (DRB)

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Embodiment Construction

[0030] Figure 4 It is a flowchart of a method for establishing a DRB according to an embodiment of the present invention. This method is applied to the DRB establishment of the Un interface when the RN starts, such as Figure 4 As shown, the method includes:

[0031] In step 401, the RN indicates the initial DRB resource information to be established to the MME in the EPC during the UE attach process.

[0032] Step 402: After receiving the indication indicating the DRB resource information to be initially connected, the MME sends bearer establishment configuration parameters to the donor node DeNB serving the RN.

[0033] Step 403, after receiving the bearer establishment configuration parameters, the DeNB completes the establishment of the initial DRB on the Un interface through the RRC reconfiguration process.

[0034] Through the above solutions, it can be realized that the DRB is established during the RN start-up process.

[0035] In order to make the object, technic...

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PUM

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Abstract

The invention discloses a method and a system for establishing a data radio bearer (DRB). The method comprises the following steps that: a relay node (RN) indicates DRB resource information which needs establishing initially to a mobility management entity (MME) in an evolution packet core (EPC) in the attachment process of user equipment (UE); after receiving the indication which shows the DRB resource information which needs establishing initially, the MME transmits a bearer establishing configuration parameter to a donor evolution node B (DeNB) which provides service for the RN; and after receiving the bearer establishing configuration parameter, the DeNB performs the initial DRB establishment of a Un interface through the reconfiguration process of radio resource control (RRC) at the Un interface. The method and the system can establish the DRB when the RN starts.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and system for establishing a data radio bearer. Background technique [0002] After 3GPP's Long Term Evolution (LTE, Long Term Evolution) technology, the 3GPP organization continued to enhance the LTE solution. This enhanced technology is called LTE-A (LTE-Advanced) technology, that is, LTE-A is the LTE technology subsequent evolution. [0003] In the LTE-A technology, a relay node (RN, Relay Node) is added to the architecture of the access network. RN can be regarded as an extension of evolved base station (eNB), providing more economical coverage for the system. The RN is connected to the eNB through a wireless interface. It can enhance the coverage quality at the edge of the eNB coverage, and can also be deployed outside the eNB coverage area to expand the coverage range. [0004] figure 1 It is a schematic diagram of an RN in an existing LTE...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04W76/02
Inventor 张鹏姜怡华赵训威
Owner 北京万海云科技有限公司
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