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Flow control method, relay node and donor enodeb thereof

A flow control and donor base station technology, applied in radio relay systems, active electrical relay systems, network traffic/resource management, etc., to improve transmission performance, improve wireless resource utilization efficiency, and reduce cache load.

Active Publication Date: 2013-08-28
HONOR DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] During the research and practice of the prior art, the inventors of the present invention found that in the LTE-A relay network, in order to improve the data transmission efficiency between the DeNB and the UE and improve the resource utilization efficiency, it is necessary to Flow control is performed on the downlink between them, but the inventors of the present invention have found that there is no corresponding flow control method to solve the above problems in the prior art

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  • Flow control method, relay node and donor enodeb thereof
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  • Flow control method, relay node and donor enodeb thereof

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Embodiment Construction

[0033] The inventors of the present invention found that in the existing LTE-A relay network, the DeNB cannot know the data processing status at the RN and the link status between the UE and the RN, and there are problems of low data transmission efficiency and low resource utilization Problems, specifically, may lead to the following problems:

[0034] If the DeNB sends a lot of data of a certain UE to the RN, but due to the poor quality of the wireless link between the RN and the UE, the data cannot be forwarded in time, which will lead to the accumulation of the UE data at the RN. On the one hand, it will increase the cache load at the RN, and on the other hand, it will also increase the amount of data sent back when the UE switches.

[0035] However, if the DeNB sends less data of a certain UE to the RN, and because the quality of the wireless link between the RN and the UE is better, the data will be forwarded quickly, resulting in no data of the UE waiting to be transmit...

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Abstract

A flow control method, relay node (RN) and donor eNodeB (DeNB) thereof are disclosed. The method comprises: the relay node sends report information to the DeNB according to at least one of the data status of self maintenance and the link status of the user equipment (UE); the report information involves at least one of the ID information of data radio bearing (DRB), the ID information of DRB group, the ID information of UE, the ID information of UE group, the data information of DRB, the data information of DRB group, the data information of UE, the data information of UE group, the link information of UE, the link information of UE group, the ID information of service, and the data information of service; according to the report information, the DeNB controls the data which correspond to DRB, DRB group, UE, UE group or the service. The method enables the flow control in a targeted manner, and can promote the resource utilization efficiency and the data transmission performance.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a flow control method, a relay node and a donor base station. Background technique [0002] In 2006, the International Telecommunication Union Radiocommunication Sector (ITU-R) named the Beyond 3rd Generation in mobile communication system (B3G, Beyond 3rd Generation in mobile communication system) technology as the advanced global mobile communication (IMT-Advanced) technology. At present, various standardization organizations are conducting research on IMT-Advanced, including the International Standards Organization for the Third Generation Communication System (3GPP, 3rd Generation Partnership Project), and 3GPP will submit to the ITU-R the Advanced Long Term Evolution (LTE- A, Long Term Evolution Advanced) technology. [0003] IMT-Advanced technology needs to achieve higher data rate and larger system capacity, but the spectrum with large bandwidth eno...

Claims

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Application Information

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IPC IPC(8): H04W28/10H04B7/15
CPCH04B7/155
Inventor 李婷李亚娟张亮亮常俊仁
Owner HONOR DEVICE CO LTD
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