Full-duplex self-interference weakening method and full-duplex self-interference weakening system
A self-interference and full-duplex technology, applied in the field of communication, can solve problems such as antenna number limitation and antenna location limitation, and achieve the effect of solving antenna location limitation, reducing the number of antennas, and large signal coverage
Active Publication Date: 2019-10-29
HUAWEI TECH CO LTD
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[0005] The embodiment of the present application provides a full-duplex self-interference mitigation method and a full-duplex self-interference mitigation system, which are used to solve the problems of antenna number limitation and antenna location limitation in existing antenna interference cancellation methods
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[0037] The technical solutions in the embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.
[0038] figure 1 A full-duplex self-interference mitigation system to which this embodiment of the present application may be applicable is shown. Such as figure 1 As shown, the full-duplex self-interference mitigation system provided in this embodiment at least includes a transmitting antenna, a dual-polarized receiving antenna, a signal processor, and a combiner. The transmit antenna transmits signals through transmit port 0, and the two receive ports of the dual-polarized receive antenna, such as figure 1 Port 1 and port 2 in the system receive signals sent by the transmitting antenna through port 0 at the same time. In the embodiment of the present application, the two receiving ports receive signals respectively, and the signal processor adjusts at least one of the signals received by the two rece...
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The invention provides a full-duplex self-interference weakening method and a full duplex self-interference weakening system. The full-duplex self-interference weakening method comprises the steps that a first port of a dual-polarization receiving antenna and a second port of the dual-polarization receiving antenna receive signals sent by a transmitting antenna respectively; and the signal received by the first port of the dual-polarized receiving antenna and / or the signal received by the second port of the dual-polarized receiving antenna are adjusted and combined so as to weaken the interference of the transmitting antenna on the dual-polarized receiving antenna. According to the full-duplex self-interference weakening method and the full-duplex self-interference weakening system provided by the invention, the problems of antenna number limitation and antenna position limitation in an existing antenna interference elimination method are solved.
Description
technical field [0001] The present application relates to the communication field, in particular to a full-duplex self-interference mitigation method and a full-duplex self-interference mitigation system. Background technique [0002] In order to alleviate the problem that wireless spectrum resources are becoming more and more scarce with the exponential increase of wireless devices, the communication field usually adopts co-frequency full duplex (Co-time Co-frequency Full Duplex, CCFD) technology to improve the utilization of wireless spectrum resources Rate. Compared with the traditional half-duplex (Half Duplex, HD) mode (such as frequency-division duplex mode and time-division duplex mode), the CCFD mode nearly doubles the spectrum utilization. A CCFD system is generally composed of a receiver and a transmitter. Since the receiving antenna of the receiver is close to the transmitting antenna of the transmitter, the receiving antenna will receive the signal sent by the t...
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Login to View More IPC IPC(8): H04L5/14H04B1/12
CPCH04L5/14H04B1/12H04L5/1461H04L5/0023H04B1/525H01Q9/0435H04B1/10
Inventor 黄晶晶淦明左鑫
Owner HUAWEI TECH CO LTD