Host base station as well as method and device for coordinating interference of relay node and host base station access link
A relay node and host base station technology, applied in the field of host base stations, can solve the problems of poor interference coordination effect
Active Publication Date: 2015-07-01
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology
[0007] The purpose of the present invention is to propose a method, device and application for interference coordination between a relay node and a host base station access link in view of the defect that the interference coordination effect between the relay node and the host base station access link is poor in the prior art. The host base station of the device to overcome the above-mentioned defects in the prior art
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[0089] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0090] The interference coordination method and device between the relay node and the host base station access link of the present invention mainly propose a solution to the following technical problems: In the LTE-Advanced system after the relay node is introduced, in order to improve the system throughput, direct transmission between users and The frequency resources used by the two relay node users overlap, so there will be greater interference between the two.
[0091]In order to overcome the above defects in the prior art, the present invention makes full use of the relationship between the donor base station eNB and the relay node RN to which the donor base sta...
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The invention discloses a host base station as well as a method and device for coordinating interference of a relay node and host base station access link. The method comprises the following steps: (1) receiving the relay node information for providing services for a relay user, the candidate service node information which corresponds to the relay user, the candidate service node information which corresponds to a direct transfer user and the schedulable frequency set of the relay node; (2) establishing an interference graph according to the relay node information for providing services for the relay user, the candidate service node information which corresponds to the relay user and the candidate service node information which corresponds to the direct transfer user, and dividing a link bandwidth according to the schedulable frequency set of the relay node; and (3) scheduling the link resource used by the direct transfer user according to the interference graph and the bandwidth dividing result. The interference graph is established according to the service information sent by the relay user and the direct transfer user, and different frequency resources are allotted to the link used by the direct transfer user and the host base station to interact according to different interference.
Description
technical field [0001] The present invention relates to the relay technology in the communication field, and in particular, relates to a method and device for coordinating interference between access links between a relay node and a host base station, and a host base station using the device. Background technique [0002] In the process of evolving from LTE (Long Term Evolution) to LTE-Advanced (an evolution of LTE), 3GPP proposes to introduce a relay node RN (Relay Node) in the mobile communication network to improve the capacity of the system and / or expand the capacity of the system. coverage. Since the LTE system access uses OFDMA (Orthogonal Frequency Division Multiple Access) technology, and the resources in the cell are allocated to users by the host base station eNB, there is only inter-cell interference, but the introduction of relay In the LTE-Advanced system of the node RN, interference occurs between the relay node RN and the donor base station eNB. [0003] Spe...
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IPC IPC(8): H04W72/04H04W72/12
Inventor 李猛王亚峰沈晓冬
Owner CHINA MOBILE COMM GRP CO LTD