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Transmitted signal determining method and system for repeater

A technology for transmitting signals and determining methods, applied in transmission systems, radio transmission systems, electrical components, etc., can solve the problems of difficult development and high construction costs of repeaters, and achieve the goal of controlling development difficulties, ensuring timeliness, and reducing noise. Effect

Active Publication Date: 2019-01-18
SUN YAT SEN UNIV
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Problems solved by technology

[0004] Based on this, it is necessary to provide a method and system, computer equipment, and computer storage medium for determining the transmission signal of a repeater in view of the technical problems that traditional solutions tend to make the development of the repeater difficult and the construction cost high

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  • Transmitted signal determining method and system for repeater
  • Transmitted signal determining method and system for repeater
  • Transmitted signal determining method and system for repeater

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0046]It should be noted that the term "first\second\third" involved in this embodiment of the present invention is only to distinguish similar objects, and does not represent a specific ordering of objects. Understandably, "first\second\third Three" are interchangeable in a specific order or sequence where permissible. It should be understood that the terms "first\second\third" are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein.

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Abstract

The invention relates to a transmitted signal determining method and system for a repeater, a computer device and a computer storage medium. The method includes the steps: determining a reference signal at a current sampling moment according to an output signal of the repeater at a set moment before the current sampling moment, wherein the set moment is the external echo delay of the repeater; filtering the reference signal by using a channel estimation parameter of an external echo channel of the repeater at the current sampling moment to obtain a predicted echo signal; subtracting a predicted echo signal from the input signal of the repeater at the current sampling moment, and determining a transmitted signal of the repeater at the current sampling moment according to the obtained signal. The method eliminates the coupled echo signal in the transmitted signal of the repeater, reduces the noise in the above-mentioned transmitted signal, and effectively controls the development difficulty and construction cost of the corresponding repeater.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and system for determining a transmitted signal of a repeater, computer equipment, and a computer storage medium. Background technique [0002] In the wireless communication network, the repeater is the priority equipment to provide effective coverage for the base station signal weak area or blind area. Among them, the wireless digital co-frequency repeater is widely used due to its flexible station setup and low installation cost. However, in the same-frequency repeater, the receiving antenna is interfered by the signal fed back from the transmitting antenna (referred to as coupling echo signal interference). Since the transmitting and receiving antennas work at the same frequency, the coupled echo signal cannot be filtered by ordinary filters. When the isolation between the transmitting antenna and the receiving antenna is insufficient, the coup...

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Application Information

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IPC IPC(8): H04B7/155
CPCH04B7/15585
Inventor 王雅楠潘云夏明华
Owner SUN YAT SEN UNIV
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