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Method and arrangement for coordinating polarizations in a wireless communication system

A radio device and wireless technology, applied in polarization/direction diversity, diversity/multi-antenna system, position diversity, etc., can solve problems such as interference

Inactive Publication Date: 2012-08-29
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the scheduler commands simultaneous transmissions at HP from eNBs 100c and 100a to the first UE 105a and at VP from eNBs 100c and 100b to the second UE 105b, then eNB 100c will proceed with opposite polarization compared to the other eNBs 100a, 100b transmission, resulting in severe interference at each UE 105a, 105b

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  • Method and arrangement for coordinating polarizations in a wireless communication system
  • Method and arrangement for coordinating polarizations in a wireless communication system
  • Method and arrangement for coordinating polarizations in a wireless communication system

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Embodiment Construction

[0032] The invention is described in more detail below with reference to certain examples and drawings. For purposes of illustration and not limitation, specific details such as specific situations, techniques, etc. are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments than these specific details.

[0033] Furthermore, those skilled in the art will appreciate that the functions and components described herein below can be implemented using software functioning in conjunction with a programmed microprocessor or general purpose computer and / or using application specific integrated circuits (ASICs). It will also be understood that although the invention has been described primarily in the form of methods and apparatus, the invention can also be implemented by means of a computer program product and by a system comprising a computer proces...

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Abstract

An object of the present invention is to enable coordination of VP / HP polarizations generated by cross-polarized, i.e. orthogonally polarized antenna configurations, of one radio device with another radio device. The object is achieved by a method in a first eNB (100c) of coordinating polarizations of the first eNB with polarizations of an additional eNB (100a). The polarizations are generated by an antenna configuration comprising at least two orthogonally polarized antennas. The first and additional eNB (100c, 100a) communicate wirelessly with a UE (150a). The method comprises the steps of establishing a first amplitude and / or phase offset of the antenna configuration generating a vertical or horizontal polarization, and a second amplitude and / or phase offset of the antenna configuration generating a polarization orthogonal to said polarization generated by the first amplitude and / or phase offset, defining the polarization generated by the first amplitude and / or phase offset to be vertical and the polarization generated by the second amplitude and / or phase offset to be horizontal, determining a polarization of the UE, and coordinating the defined polarizations with polarizations of the additional eNB based on the determined UE polarization.

Description

technical field [0001] Generally, the present invention relates to methods and apparatus in radio devices and control devices. More specifically, it concerns the coordination of the antenna polarization of one radio device with that of another radio device. Background technique [0002] Universal Mobile Telecommunications System (UMTS) is one of the third generation mobile communication technologies designed to succeed GSM. 3GPP Long Term Evolution (LTE) is a project within the 3rd Generation Partnership Project (3GPP) to improve the UMTS standard to address future demands for improved services such as higher data rates, increased efficiency, and reduced costs Require. The Universal Terrestrial Radio Access Network (UTRAN) is the radio access network of UMTS, and the Evolved UTRAN (E-UTRAN) is the radio access network of the LTE system. [0003] Such as figure 1 As shown, E-UTRAN generally comprises user equipment (UE) 150a, 150b wirelessly connected to radio base statio...

Claims

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Application Information

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IPC IPC(8): H04B7/02H04B7/10
CPCH04B7/022H04B7/10
Inventor H.阿斯普伦B.哈格曼
Owner TELEFON AB LM ERICSSON (PUBL)