Signal cancelling method and apparatus of wireless communication system

A signal cancellation and wireless communication technology, which is applied in the field of wireless communication, can solve the problems that the bandwidth cannot be widened, the control of amplitude, phase and delay can not be very fine, and it is difficult to meet the needs of equipment miniaturization, etc., to achieve fine control , Eliminate signal leakage, offset the effect of good effect

Active Publication Date: 2014-11-26
ZTE CORP
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Problems solved by technology

Traditional isolation methods are difficult to meet the needs of equipment miniaturization
[0004] In the analog domain interference cancellation technology in the prior art, since the channel characteristic matching is carried out in the analog domain, the control of characteristics such as amplitude, phase and delay cannot be very fine. The impact of fluctuations on the offset result, so the bandwidth cannot be widened, only suitable for narrowband offset

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  • Signal cancelling method and apparatus of wireless communication system
  • Signal cancelling method and apparatus of wireless communication system
  • Signal cancelling method and apparatus of wireless communication system

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Embodiment Construction

[0055] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0056] figure 1 It is a flow chart of the signal cancellation method of the wireless communication system provided by the present invention, such as figure 1 As shown, the steps include:

[0057] Step 101: Perform splitting processing on the transmitted signal to obtain a main channel signal transmitted on the main channel and an auxiliary channel signal transmitted on the auxiliary channel.

[0058] Wherein, the main channel 102 and the auxiliary channel 103 are linear channels, and their components include but are not limited to amplifiers, filters, matching, attenuation, paths, ADCs, DACs, frequency conversion, modulation, and the like.

[0059] Step...

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Abstract

Disclosed is a signal cancellation method for a wireless communication system, comprising: performing shunting processing on sent signals to obtain a main channel signal which is transmitted over a main channel and an auxiliary channel signal which is transmitted over an auxiliary channel; performing digital domain channel characteristic matching processing on the main channel signal and the auxiliary channel signal respectively, to obtain a main channel characteristic matched signal and an auxiliary channel characteristic matched signal; and performing combination processing on the main channel characteristic matched signal and the auxiliary channel characteristic matched signal which are coupled to a receiving channel, so as to perform signal cancellation. Also disclosed is a signal cancellation device for a wireless communication system. By means of the technical solution of the present invention, the signal cancellation problem of broadband can be better solved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a signal cancellation method and a related device of a wireless communication system. Background technique [0002] In a wireless communication system, in order to prevent each part of the system from interfering with each other, to ensure the internal electromagnetic compatibility of the system, and to ensure the normal operation of each part, passive means such as shielding, filtering, and wave absorption are usually used to enhance isolation, etc., to ensure that the mutual influence can be ignored. . However, passive shielding, passive filtering, absorbing and other means have large volume, weight and high cost. [0003] With the development of communication technology, operators have higher and higher requirements for miniaturization and light weight of wireless communication equipment. The miniaturization of wireless communication equipment is also in line with the t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03
CPCH04L25/03H04L27/368H04B1/0475H04B1/0483
Inventor 田其杨青崔亦军王建利宗柏青
Owner ZTE CORP
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