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Radio unit and radio link transceiver for cross-polar signal transfer

A technology of radio units and radio links, applied in electromagnetic transceivers, radio transmission systems, electrical components, etc., to solve problems such as loss, difficulty in connecting and disconnecting cables, etc.

Active Publication Date: 2021-03-26
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such cables can be difficult to connect and disconnect if a transceiver needs to be changed or installed, especially if the work is performed high on a mast
Cable-based connections also suffer from losses at high frequencies; signals transmitted between transceivers for XPIC may have bandwidths greater than 1 GHz

Method used

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  • Radio unit and radio link transceiver for cross-polar signal transfer
  • Radio unit and radio link transceiver for cross-polar signal transfer
  • Radio unit and radio link transceiver for cross-polar signal transfer

Examples

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Embodiment Construction

[0045] Aspects of the present disclosure will now be described more fully with reference to the accompanying drawings. However, the different apparatus and methods disclosed herein may be implemented in many different forms and should not be construed as limited to the aspects set forth herein. Like numbers in the figures refer to like elements throughout.

[0046] The terms used herein are for describing aspects of the present disclosure only and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0047] refer to figure 1 , there is a first point-to-point radio link 100 which in turn comprises a first antenna 110A, a first radio link transceiver 101A, a second antenna 110B and a second radio link transceiver 101B. The radio link 100 is adapted to communicate via two linear polarizations; a horizontal polarization H-POL and a...

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PUM

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Abstract

The present disclosure relates to a radio unit (420, 420A, 420B) adapted for cross-polar signal transfer (230), comprising an optical transmit interface (430, 430A, 430B) and an optical receive interface (440, 440A, 440B) which are arranged to transfer cross-polar signals for cross-polar interference cancellation, XPIC, to and from an external source, respectively. The optical transmit interface (430, 430A, 430B) and the optical receive interface (440, 440A, 440B) are arranged at equal distances (D) from a symmetry line (450) of the interfaces, and in a plane (451) perpendicular to the symmetry line (450). Upon rotation of the radio unit (420, 420A, 420B) about the symmetry line (450) by 180 degrees, the optical transmit interface after rotation aligns with the optical receive interface before rotation, and the optical receive interface after rotation aligns with the optical transmit interface before rotation.

Description

technical field [0001] The present disclosure relates to point-to-point radio communication links, such as microwave radio links. Methods and arrangements for transmitting radio signals between a first and a second radio unit are disclosed herein. Background technique [0002] There is a dual-polarized radio link carrying two signal streams, one for each polarization, using cross-polar signaling for cross-polar interference cancellation (XPIC) . When two streams are received, there is residual mutual interference which should be properly suppressed. The two received polarizations (typically linear horizontal H and vertical V) are each routed to corresponding transceivers, one for H polarization and one for V polarization. [0003] In order to implement XPIC, there must be a connection between one transceiver for H polarization and one for V polarization, so that in a previously known manner, the transceiver for H polarization can compensate for the interference of V polar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/74H04B7/00H04B1/59H04B10/80
CPCH04B10/801H04B10/40
Inventor J·桑德伯格
Owner TELEFON AB LM ERICSSON (PUBL)