CN-121984531-A - Multisystem fusion combining platform and signal transmission method

CN121984531ACN 121984531 ACN121984531 ACN 121984531ACN-121984531-A

Abstract

The invention provides a multi-system fusion and combination platform and a signal transmission method, wherein the method comprises the steps of receiving a first frequency band signal through a second system signal transmission main body module; the method comprises the steps of receiving a second frequency band signal and/or a third frequency band signal through a first system signal transmission main body module, carrying out resonance processing on the first frequency band signal and the second frequency band signal through a resonator in the second system signal transmission main body module to obtain a first intermediate signal and a second intermediate signal, carrying out filtering processing on the first intermediate signal and the second intermediate signal through a filter to obtain a first output signal and a second output signal, carrying out resonance processing on the third frequency band signal to obtain a third output signal, and outputting the first output signal, the second output signal and the third output signal through an antenna port of a multi-system fusion and combination platform after combining. The scheme can support multi-system signal fusion communication, adopts a modularized design, and reduces communication cost.

Inventors

WU JINGKAI
KANG JIZHI
LI XIN
ZHANG DONGDONG
XIANG TAO
LI ZHONGCHENG
WANG FENG
YANG SHUICHENG
RUI DAOYUN
LI MAOYANG

Assignees

铁塔智联河北有限公司
中国铁塔股份有限公司河北省分公司
中国铁塔股份有限公司河北雄安分公司
南京华脉科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260409

Claims (10)

1. The signal transmission method of the multi-system fusion and combination platform is characterized in that the multi-system fusion and combination platform comprises a first system signal transmission main body module (1) and a second system signal transmission main body module (2) electrically connected with the output end of the first system signal transmission main body module (1), and the method comprises the following steps: receiving a first frequency band signal through the second system signal transmission main body module (2); Receiving at least one second frequency band signal and/or at least one third frequency band signal by the first system signal transmission main body module (1); Carrying out resonance processing on the first frequency band signal through a first resonator in the second system signal transmission main body module (2) to obtain a first intermediate signal; carrying out resonance processing on the second frequency band signal through a second resonator in the second system signal transmission main body module (2) to obtain a second intermediate signal; the first intermediate signal is filtered through a filter connected in series with the first resonator in the second system signal transmission main body module (2) to obtain a first output signal; The second intermediate signal is filtered through the filter connected with the second resonator in series in the second system signal transmission main body module (2) to obtain a second output signal; Carrying out resonance processing on the third frequency band signal through a third resonator of the second system signal transmission main body module (2) to obtain a third output signal; after the first output signal, the second output signal and the third output signal are combined, the first output signal, the second output signal and the third output signal are output through an antenna port of the multi-system fusion combining platform; The maximum value of the first frequency range of the first frequency band signal is smaller than the minimum value of the second frequency range of the second frequency band signal, the maximum value of the second frequency range of the second frequency band signal is smaller than the minimum value of the third frequency range of the third frequency band signal, and the maximum value of the frequency range of the filter is larger than or equal to the maximum value of the second frequency range of the second frequency band signal.
2. The signal transmission method of the multi-system fusion and combination platform according to claim 1, wherein the first frequency range of the first frequency band signal is 350-470MHz, the first frequency band signal is subjected to resonance processing through a first resonator in the second system signal transmission main body module (2) to obtain a first intermediate signal, and the method comprises the following steps: generating nonlinear distortion for the first frequency band signal in a first frequency range through the first resonator to obtain a first harmonic wave, an intermodulation signal and a first frequency band reserved signal; and obtaining a first intermediate signal according to the first frequency band reserved signal, the first harmonic and the intermodulation signal.
3. The signal transmission method of the multi-system fusion and combination platform according to claim 1, wherein the second frequency range of the second frequency band signal is 703-960MHz, and the resonance processing is performed on the second frequency band signal through a second resonator in the second system signal transmission main body module (2) to obtain a second intermediate signal, which includes: Generating nonlinear distortion for the second frequency band signal in a second frequency range through the second resonator to obtain a second harmonic and intermodulation signal and a second frequency band reserved signal; and obtaining a second intermediate signal according to the second frequency band reserved signal, the second harmonic and the intermodulation signal.
4. The signal transmission method of the multi-system fusion and combiner platform according to claim 2, wherein filtering the first intermediate signal by a filter connected in series with the first resonator in the second system signal transmission main module (2) to obtain a first output signal comprises: according to the first inductance of the filter, first blocking is carried out on first harmonic waves and intermodulation signals in the first intermediate signals, and first blocking intermediate signals are obtained; Performing first bleeding on the first blocking intermediate signal according to a first capacitor of the filter to obtain a first bleeding intermediate signal; performing second blocking on the first bleeding intermediate signal according to a second inductor of the filter to obtain a second blocking intermediate signal; and performing second discharge on the second blocking intermediate signal according to a second capacitor of the filter to obtain a first output signal.
5. A signal transmission method of a multi-system fusion and combiner platform according to claim 3, wherein filtering the second intermediate signal by the filter connected in series with the second resonator in the second system signal transmission main module (2) to obtain a second output signal comprises: performing first blocking on the second harmonic and intermodulation signals in the second intermediate signal according to the first inductor of the filter to obtain a third blocking intermediate signal; performing first discharge on the third blocking intermediate signal according to a first capacitor of the filter to obtain a second discharge intermediate signal; Performing second blocking on the second bleeding intermediate signal according to a second inductor of the filter to obtain a fourth blocking intermediate signal; And performing second discharge on the fourth blocking intermediate signal according to a second capacitor of the filter to obtain a second output signal.
6. The signal transmission method of the multi-system fusion and combination platform according to claim 1, wherein the third frequency range of the third frequency band signal is 1710-3800MHz, and the third frequency band signal is subjected to resonance processing through a third resonator of the second system signal transmission main body module (2) to obtain a third output signal, and the method comprises the following steps: generating nonlinear distortion for the third frequency band signal in a third frequency range through the third resonator to obtain a third harmonic wave, an intermodulation signal and a third frequency band reserved signal; And obtaining a third output signal according to the third frequency band reserved signal, the third harmonic and the intermodulation signal.
7. The signal transmission method of the multi-system fusion and combiner platform according to claim 1, wherein after combining the first output signal, the second output signal and the third output signal, the signal is output through an antenna port of the multi-system fusion and combiner platform, comprising: And combining the first output signal and the second output signal filtered by the filter with the third output signal to form a full-frequency-band composite signal, and outputting the full-frequency-band composite signal through an antenna port of the multi-system fusion and combination platform.
8. A multi-system fusion combining platform, comprising: A first system signal transmission main body module (1); a second system signal transmission main body module (2) electrically connected with the output end of the first system signal transmission main body module (1); The second system signal transmission main body module (2) comprises a first frequency band passage, a second frequency band passage, a third frequency band passage and a filter, wherein a first resonator is arranged in the first frequency band passage, a second resonator is arranged in the second frequency band passage, and a third resonator is arranged in the third frequency band passage; Wherein, the first frequency band signal is received by the second system signal transmission main body module (2); Receiving at least one second frequency band signal and/or at least one third frequency band signal by the first system signal transmission main body module (1); Carrying out resonance processing on the first frequency band signal through a first resonator in the second system signal transmission main body module (2) to obtain a first intermediate signal; carrying out resonance processing on the second frequency band signal through a second resonator in the second system signal transmission main body module (2) to obtain a second intermediate signal; the first intermediate signal is filtered through a filter connected in series with the first resonator in the second system signal transmission main body module (2) to obtain a first output signal; The second intermediate signal is filtered through the filter connected with the second resonator in series in the second system signal transmission main body module (2) to obtain a second output signal; Carrying out resonance processing on the third frequency band signal through a third resonator of the second system signal transmission main body module (2) to obtain a third output signal; after the first output signal, the second output signal and the third output signal are combined, the first output signal, the second output signal and the third output signal are output through an antenna port of the multi-system fusion combining platform; The maximum value of the first frequency range of the first frequency band signal is smaller than the minimum value of the second frequency range of the second frequency band signal, the maximum value of the second frequency range of the second frequency band signal is smaller than the minimum value of the third frequency range of the third frequency band signal, and the maximum value of the frequency range of the filter is larger than or equal to the maximum value of the second frequency range of the second frequency band signal.
9. The multi-system fusion platform of claim 8, wherein the first resonator, the second resonator, and the third resonator each comprise: the device comprises a resonance unit, a first intermediate signal, a second intermediate signal or a third output signal, wherein the resonance unit is used for carrying out nonlinear distortion on an input signal to obtain a harmonic wave and intermodulation signal and a frequency band retaining signal, and the first intermediate signal, the second intermediate signal or the third output signal is obtained according to the harmonic wave and intermodulation signal and the frequency band retaining signal.
10. The multi-system fusion combining platform of claim 8, wherein the filter comprises: The first capacitor is connected with the first inductor; the second inductor and the second capacitor are connected with the second inductor.

Description

Multisystem fusion combining platform and signal transmission method Technical Field The invention relates to the technical field of communication equipment, in particular to a multi-system fusion and combination platform and a signal transmission method. Background As a communication device, a multi-system combining platform (Point of Interface, POI) has been used for many years, and the investment of an antenna feeder can be effectively reduced by using the POI, and along with the continuous development of the communication field, the use requirement of the POI is increased in subways, high-speed rail projects and indoor coverage projects. However, the POI on the market at present can only cover the standard requirement of the communication operators, namely the public network requirement, and the private network requirements such as railway and industrial wireless communication still cannot be directly integrated with the public network for use together, so that two lines are required to be laid in a large number of communication construction scenes, one line is used for the public network, and the other line is used for the private network, so that the basic communication construction requirement of the demander can be met. Thus, the equipment cost is high and the universality is poor. Disclosure of Invention The invention provides a multi-system fusion and combination platform and a signal transmission method, which support multi-system signal fusion communication and reduce communication cost by adopting a modularized design. In order to solve the technical problems, the technical scheme of the invention is as follows: The embodiment of the invention provides a signal transmission method of a multi-system fusion and combination platform, which comprises a first system signal transmission main body module and a second system signal transmission main body module electrically connected with the output end of the first system signal transmission main body module, wherein the method comprises the following steps: receiving a first frequency band signal through the second system signal transmission main body module; receiving at least one second frequency band signal and/or at least one third frequency band signal by the first system signal transmission main body module; carrying out resonance processing on the first frequency band signal through a first resonator in the second system signal transmission main body module to obtain a first intermediate signal; Carrying out resonance processing on the second frequency band signal through a second resonator in the second system signal transmission main body module to obtain a second intermediate signal; the first intermediate signal is filtered through a filter connected in series with the first resonator in the second system signal transmission main body module, so as to obtain a first output signal; The second intermediate signal is filtered through the filter connected in series with the second resonator in the second system signal transmission main body module, so as to obtain a second output signal; Carrying out resonance processing on the third frequency band signal through a third resonator of the second system signal transmission main body module to obtain a third output signal; after the first output signal, the second output signal and the third output signal are combined, the first output signal, the second output signal and the third output signal are output through an antenna port of the multi-system fusion combining platform; The maximum value of the first frequency range of the first frequency band signal is smaller than the minimum value of the second frequency range of the second frequency band signal, the maximum value of the second frequency range of the second frequency band signal is smaller than the minimum value of the third frequency range of the third frequency band signal, and the maximum value of the frequency range of the filter is larger than or equal to the maximum value of the second frequency range of the second frequency band signal. Optionally, the first frequency range of the first frequency band signal is 350-470MHz, and the resonance processing is performed on the first frequency band signal by a first resonator in the second system signal transmission main body module to obtain a first intermediate signal, which includes: generating nonlinear distortion for the first frequency band signal in a first frequency range through the first resonator to obtain a first harmonic wave, an intermodulation signal and a first frequency band reserved signal; and obtaining a first intermediate signal according to the first frequency band reserved signal, the first harmonic and the intermodulation signal. Optionally, the second frequency range of the second frequency band signal is 703-960MHz, and the second intermediate signal is obtained by performing resonance processing on the second frequency band signal through a second resonator in