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Systems and methods for mitigating self-interference

A technology of self-interference and wireless devices, applied in orthogonal multiplexing systems, transmission systems, digital transmission systems, etc., can solve UL self-interference and other problems

Active Publication Date: 2018-03-30
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As discussed in detail below, a serious design challenge is UL self-interference, where a UE's uplink transmission on an uplink component carrier results in intermodulation products that fall within the downlink component carrier used by the UE

Method used

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  • Systems and methods for mitigating self-interference
  • Systems and methods for mitigating self-interference
  • Systems and methods for mitigating self-interference

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Embodiment Construction

[0060] The embodiments set forth below represent the necessary information to enable one skilled in the art to practice the embodiments and illustrate the best mode of carrying out the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not specifically addressed herein. It should be understood that these concepts and applications are within the scope of this disclosure and the appended claims.

[0061] Systems and methods for mitigating self-interference at wireless devices in a cellular communication network are disclosed. Before describing these systems and methods, however, it is instructive to discuss 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) and self-interference issues. LTE (which as used herein includes LTE and LTE-Advanced) is a mobile broadband wireless term in which communic...

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Abstract

Systems and methods for mitigating self-interference at a wireless device (14) in a cellular communication network (10) are disclosed. In one embodiment, the network node (12, 14) obtains one or more self-interference parameters of self-interference at the wireless device (14) within a downlink frequency band utilized by the wireless device (14). In one embodiment, the one or more self-interference parameters include frequency location of self-interference, strength of self-interference, or frequency location and strength of self-interference. The network node (12, 14) then controls the uplink transmission of the wireless device (14), the downlink reception of the wireless device (14) and / or the wireless device ( 14) downlink transmission.

Description

[0001] related application [0002] This application claims the benefit of Provisional Patent Application No. 61 / 724,748, filed November 9, 2012, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates to systems and methods for mitigating self-interference at wireless devices in cellular communication networks. Background technique [0004] In Long Term Evolution (LTE) Release 8, separate uplink and downlink frequency bands are utilized for Frequency Division Duplex (FDD) operation, where the uplink and downlink frequency bands are paired to allow transmitted at the same time. The paired uplink and downlink frequency bands have sufficient separation so that the transmitted signals can not unduly impair receiver performance. In LTE Release 10, carrier aggregation is used to support bandwidths greater than 20 megahertz (MHz), while providing legacy support for LTE Release 8 user equipment devices (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J11/00H04L5/00
CPCH04J11/0023H04L5/0053H04L5/0066H04L5/0058
Inventor C.朴郑荣富
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD