A node and method for mitigation of interference from a mobile relay node to a heterogeneous network

A mobile relay and node technology, applied in network planning, radio relay system, diversity/multi-antenna system, etc., to achieve the effect of reducing interference and reducing interference

Active Publication Date: 2019-08-20
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although in theory, limiting in the time domain when relay nodes of neighboring macro donor cells can transmit on their Un and Uu links may be sufficient to mitigate interference, this would require Strict time synchronization between mobile relay nodes in adjacent donor macrocells, while in general, cellular networks may not be time synchronized

Method used

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  • A node and method for mitigation of interference from a mobile relay node to a heterogeneous network
  • A node and method for mitigation of interference from a mobile relay node to a heterogeneous network
  • A node and method for mitigation of interference from a mobile relay node to a heterogeneous network

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Embodiment Construction

[0028] Exemplary embodiments will next be described in detail with reference to the accompanying drawings. The same reference numbers in different drawings indicate the same or similar elements. Also, the ensuing detailed description does not limit the invention. Rather, the scope of the invention is defined by the appended claims.

[0029]Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment," or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

[0030] For example, to address the issues mentioned in the Background section, a ...

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Abstract

An apparatus, system, and method for mitigating interference caused by mobile relay nodes in a heterogeneous network are described. The technique applies fractional frequency reuse and power steered beamforming to mitigate this interference.

Description

technical field [0001] The present invention relates generally to reducing interference in wireless communication systems, and more particularly to reducing interference from mobile relay nodes in heterogeneous wireless networks. Background technique [0002] The continuously increasing demand for higher data rates in cellular networks requires new ways to meet this demand. Different mechanisms have evolved for increasing the data rate of cellular networks, such as increasing macro base station (BS) density, increasing cooperation between macro base stations, and deploying smaller BSs in areas requiring high data rates within the macro base station grid. base station or relay node (RN). The option of deploying smaller base stations or relay nodes in a grid of macro base stations is often referred to as a heterogeneous deployment (constituting a heterogeneous network), and the layer of smaller base stations is characteristics. [0003] Although each of the above options re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06H04W52/46
CPCH04W52/46H04W16/10H04W16/28H04W16/32H04B7/0617H04B7/14H04W72/0453
Inventor G·D·布罗K·迪谋
Owner TELEFON AB LM ERICSSON (PUBL)
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