Multi-system fusion combining platform and signal transmission method

Abstract

The invention provides a multi-system fusion combining platform and a signal transmission method. The method comprises the following steps: receiving a first frequency band signal through a second system signal transmission main body module; receiving a second frequency band signal and / or a third frequency band signal through the first system signal transmission main body module; respectively carrying out resonance processing on the first frequency band signal and the second frequency band signal through a resonator in a second system signal transmission main body module to obtain a first intermediate signal and a second intermediate signal; filtering the first intermediate signal and the second intermediate signal through a filter to obtain a first output signal and a second output signal; performing resonance processing on the third frequency band signal to obtain a third output signal; and combining the first output signal, the second output signal and the third output signal, and outputting through an antenna port of the multi-system fusion combining platform. According to the scheme, multi-system signal fusion communication can be supported, a modular design is adopted, and the communication cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of communication equipment technology, and in particular to a multi-system fusion platform and signal transmission method. Background Technology

[0002] Point of Interface (POI) is a communication device that has been used for many years. Applying POI can effectively reduce the investment in antenna feeder. With the continuous development of the communication field, especially in subway, high-speed rail projects and indoor coverage projects, the demand for POI is increasing.

[0003] However, current POIs on the market can only cover the standard requirements of telecommunications operators, i.e., public network requirements. They still cannot directly integrate with public networks for dedicated network needs such as railway and industrial wireless communications. Therefore, in many communication construction scenarios, two lines need to be laid—one for the public network and the other for the dedicated network—to meet the basic communication construction needs of the users. This results in high equipment costs and poor versatility. Summary of the Invention

[0004] This invention provides a multi-system fusion and signal transmission platform and a method for supporting multi-system signal fusion communication. It adopts a modular design to reduce communication costs.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0006] This invention provides a signal transmission method for a multi-system fusion and combining platform. The multi-system fusion and combining platform includes: a first system signal transmission main module and a second system signal transmission main module electrically connected to the output terminal of the first system signal transmission main module. The method includes:

[0007] The second system signal transmission main module receives the first frequency band signal;

[0008] The first system signal transmission main module receives at least one second frequency band signal and / or at least one third frequency band signal;

[0009] The first frequency band signal is resonated by the first resonator in the second system signal transmission main module to obtain the first intermediate signal;

[0010] The second frequency band signal is resonated by the second resonator in the second system signal transmission main module to obtain the second intermediate signal;

[0011] The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module to obtain the first output signal;

[0012] The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module to obtain the second output signal;

[0013] The third frequency band signal is resonated through the third resonator of the second system signal transmission main module to obtain the third output signal;

[0014] The first output signal, the second output signal, and the third output signal are combined and then output through the antenna port of the multi-system fusion combining platform.

[0015] Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater than or equal to the maximum value of the second frequency range of the second frequency band signal.

[0016] Optionally, the first frequency range of the first frequency band signal is 350-470MHz; the first frequency band signal is resonated through the first resonator in the second system signal transmission main module to obtain a first intermediate signal, including:

[0017] The first frequency band signal in the first frequency range is nonlinearly distorted by the first resonator to obtain the first harmonic and intermodulation signal and the first frequency band retained signal;

[0018] The first intermediate signal is obtained based on the first frequency band reserved signal and the first harmonic and intermodulation signal.

[0019] Optionally, the second frequency range of the second frequency band signal is 703-960MHz; the second frequency band signal is resonated through the second resonator in the second system signal transmission main module to obtain a second intermediate signal, including:

[0020] The second frequency band signal in the second frequency range is nonlinearly distorted by the second resonator to obtain the second harmonic and intermodulation signal and the second frequency band retained signal;

[0021] The second intermediate signal is obtained based on the second frequency band reserved signal and the second harmonic and intermodulation signal.

[0022] Optionally, the first intermediate signal is filtered by a filter connected in series with the first resonator in the second system signal transmission main module to obtain a first output signal, including:

[0023] The first harmonic and intermodulation signal in the first intermediate signal are first blocked by the first inductance of the filter to obtain the first blocked intermediate signal.

[0024] The first blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the first discharged intermediate signal;

[0025] The second inductance of the filter is used to perform a second blocking on the first bleed intermediate signal to obtain a second blocked intermediate signal;

[0026] The second blocking intermediate signal is discharged a second time according to the second capacitor of the filter to obtain the first output signal.

[0027] Optionally, the second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module to obtain the second output signal, including:

[0028] The first inductance of the filter is used to first block the second harmonic and intermodulation signal in the second intermediate signal to obtain the third blocked intermediate signal.

[0029] The third blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the second discharged intermediate signal;

[0030] The second inductance of the filter is used to perform a second blocking on the second bleed intermediate signal to obtain a fourth blocked intermediate signal;

[0031] The second output signal is obtained by second-discharging the fourth blocking intermediate signal using the second capacitor of the filter.

[0032] Optionally, the third frequency range of the third frequency band signal is 1710-3800MHz; the third frequency band signal is resonated through the third resonator of the second system signal transmission main module to obtain a third output signal, including:

[0033] The third frequency band signal in the third frequency range is subjected to nonlinear distortion by the third resonator to obtain the third harmonic and intermodulation signal and the third frequency band retained signal;

[0034] The third output signal is obtained based on the third frequency band reserved signal and the third harmonic and intermodulation signal.

[0035] Optionally, after combining the first output signal, the second output signal, and the third output signal, the output is transmitted through the antenna port of the multi-system fusion combining platform, including:

[0036] The first output signal, the second output signal, and the third output signal, after being filtered by the filter, are combined to form a full-band composite signal, which is then output through the antenna port of the multi-system fusion and combining platform.

[0037] This invention also provides a multi-system fusion and combining platform, comprising:

[0038] First system signal transmission main module;

[0039] A second system signal transmission main module electrically connected to the output terminal of the first system signal transmission main module;

[0040] The second system signal transmission main module includes: a first frequency band path, a second frequency band path, a third frequency band path, and a filter; a first resonator is provided in the first frequency band path, a second resonator is provided in the second frequency band path, and a third resonator is provided in the third frequency band path; the outputs of the first and second resonators are connected to the input of the filter, and the outputs of the third resonator and the filter are combined and then connected to the antenna port of the multi-system fusion and combining platform;

[0041] The first frequency band signal is received through the second system signal transmission main module;

[0042] The first system signal transmission main module receives at least one second frequency band signal and / or at least one third frequency band signal;

[0043] The first frequency band signal is resonated by the first resonator in the second system signal transmission main module to obtain the first intermediate signal;

[0044] The second frequency band signal is resonated by the second resonator in the second system signal transmission main module to obtain the second intermediate signal;

[0045] The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module to obtain the first output signal;

[0046] The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module to obtain the second output signal;

[0047] The third frequency band signal is resonated through the third resonator of the second system signal transmission main module to obtain the third output signal;

[0048] The first output signal, the second output signal, and the third output signal are combined and then output through the antenna port of the multi-system fusion combining platform.

[0049] Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater than or equal to the maximum value of the second frequency range of the second frequency band signal.

[0050] Optionally, the first resonator, the second resonator, and the third resonator each include:

[0051] The resonant unit is used to nonlinearly distort the input signal to obtain harmonic and intermodulation signals and frequency band reserved signals; based on the harmonic and intermodulation signals and frequency band reserved signals, a first intermediate signal, a second intermediate signal, or a third output signal is obtained.

[0052] Optionally, the filter includes:

[0053] First inductor; first capacitor connected to the first inductor;

[0054] The second inductor; the second capacitor connected to the second inductor.

[0055] The technical solution of the present invention has at least the following effects:

[0056] The above-described solution of the present invention receives a first frequency band signal through a second system signal transmission main module; receives a second frequency band signal and / or a third frequency band signal through the first system signal transmission main module; performs resonance processing on the first and second frequency band signals respectively through a resonator in the second system signal transmission main module to obtain a first intermediate signal and a second intermediate signal; performs filtering processing on the first and second intermediate signals respectively through a filter to obtain a first output signal and a second output signal; performs resonance processing on the third frequency band signal to obtain a third output signal; and combines the first, second, and third output signals and outputs them through the antenna port of the multi-system fusion combining platform. This supports multi-system signal fusion communication, adopts a modular design, reduces communication costs, increases product stability, and enables the upgrade from a single network to a dual network without adding new lines. Attached Figure Description

[0057] Figure 1This is a flowchart of the signal transmission method of the multi-system fusion and combining platform provided in the embodiments of the present invention;

[0058] Figure 2 This is a schematic diagram of the signal transmission principle of the multi-system fusion and combining platform provided in this embodiment of the invention;

[0059] Figure 3 This is a schematic diagram of the overall structure of the multi-system fusion and combining platform provided in an embodiment of the present invention;

[0060] Figure 4 This is a schematic diagram of the internal structure of the second system signal transmission main module of the multi-system fusion and combining platform provided in this embodiment of the invention;

[0061] Figure 5 This is a schematic diagram of the circuit structure of the resonator of the multi-system fusion combining platform provided in this embodiment of the invention;

[0062] Figure 6 This is a schematic diagram of the circuit structure of the filter of the multi-system fusion and combining platform provided in an embodiment of the present invention;

[0063] Figure 7 This is a schematic diagram of the internal structure of the first side of the first system signal transmission main module of the multi-system fusion and combining platform provided in this embodiment of the invention;

[0064] Figure 8 This is a schematic diagram of the internal structure of the second side of the first system signal transmission main module of the multi-system fusion and combining platform provided in this embodiment of the invention. Detailed Implementation

[0065] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0066] like Figures 1 to 8 As shown, an embodiment of the present invention proposes a signal transmission method for a multi-system fusion and combining platform, wherein the multi-system fusion and combining platform includes: a first system signal transmission main module 1 and a second system signal transmission main module 2 electrically connected to the output terminal of the first system signal transmission main module 1, comprising:

[0067] Step 11: Receive the first frequency band signal through the second system signal transmission main module 2;

[0068] Step 12: Receive at least one second frequency band signal and / or at least one third frequency band signal through the first system signal transmission main module 1;

[0069] Step 13: The first frequency band signal is resonated through the first resonator in the second system signal transmission main module 2 to obtain the first intermediate signal;

[0070] Step 14: The second frequency band signal is resonated through the second resonator in the second system signal transmission main module 2 to obtain the second intermediate signal;

[0071] Step 15: The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module 2 to obtain the first output signal;

[0072] Step 16: The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module 2 to obtain the second output signal;

[0073] Step 17: The third frequency band signal is resonated through the third resonator of the second system signal transmission main module 2 to obtain the third output signal;

[0074] Step 18: After combining the first output signal, the second output signal, and the third output signal, output them through the antenna port of the multi-system fusion combining platform;

[0075] Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater than or equal to the maximum value of the second frequency range of the second frequency band signal.

[0076] In this embodiment, the first system signal transmission main module 1 can be a public network signal transmission main module, and the second system signal transmission main module 2 can be a private network signal transmission main module. The first system signal transmission main module 1 and the second system signal transmission main module 2 can be electrically connected through a low intermodulation radio frequency cable 3. The signal frequency band of the public network signal transmission main module is different from that of the private network signal transmission main module. Generally, the signal frequency band range of the public network signal transmission main module includes 703-960MHz and 1710-3800MHz, while the signal frequency band range of the private network includes 350-470MHz. The number of antenna ports of the multi-system fusion and combining platform is set according to requirements.

[0077] Each public network signal and each private network signal are passed through resonators suitable for different frequency bands to prevent out-of-band noise and interference from passing through. The resonant circuit of the resonator is as follows: Figure 5 As shown. Harmonic and intermodulation signals include first harmonic and intermodulation signals, second harmonic and intermodulation signals, and third harmonic and intermodulation signals; frequency band reserved signals include first frequency band reserved signals, second frequency band reserved signals, and third frequency band reserved signals.

[0078] Because higher-frequency harmonics and intermodulation signals are generated during the signal's passage through the resonator, for signals in the 350-470MHz and 703-960MHz frequency bands, some high-frequency harmonics and intermodulation signals in the 1710-3800MHz frequency band will be generated, causing secondary resonance interference to the third frequency band signal. Therefore, a filter is needed to filter the first and second intermediate signals to obtain the first and second output signals; the filter circuit is as follows. Figure 6 As shown.

[0079] The three output signals generated after processing the public network and private network signals of each channel are combined and sent to the antenna port for output.

[0080] The interior of the first surface of the first system signal transmission main module 1 is as follows: Figure 7 As shown; the internal cross-section of the second side of the first system signal transmission main module 1 is as follows. Figure 8 As shown.

[0081] like Figures 2 to 3As shown, the output terminal of the first system signal transmission main module 1 and the input terminal of the second system signal transmission main module 2 are externally connected via a low intermodulation radio frequency cable 3. Public network signals are processed jointly by the first system signal transmission main module 1 and the second system signal transmission main module 2, while private network signals are processed by the second system signal transmission main module 2. Multiple signal sources in the first system signal transmission main module 1 can be input to the second system signal transmission main module 2 via a bridge circuit. The bridge circuit can be a power divider bridge with one input and two outputs or a dual-path independent bridge system. The second system signal transmission main module 2 can be mounted on the first system signal transmission main module 1 through a modular structure design. Modular design facilitates production and transportation and increases equipment stability. The signal path through the first resonator is the first frequency band path, which operates at a frequency of 350-470MHz. The stripline stub of the first resonator is supported by PTFE gaskets and secured with polystyrene screws. The stripline's front end is connected in series with a bridge circuit using a 50-ohm through-wall transmission line to achieve reliable high-frequency insulation and avoid introducing additional parasitic parameters. The signal path through the second resonator is the second frequency band path, which operates at a frequency of 703-960MHz. In the second frequency band path, the output tap utilizes... The capacitive coupling plate is coupled to the low-pass transmission line, and the input port tap shares the same input port as the third frequency band path section. The signal path of the third resonator is the third frequency band path section, which operates at a frequency of 1710-3800MHz. Both the input and output ports of the third resonator adopt the feedthrough capacitor coupling method. The input port shares the same input port as the second frequency band path section, and the output port shares the same output port as the first and second frequency band path sections. The capacitive coupling is enhanced by a polytetrafluoroethylene sleeve, and the window reinforcing ribs are used to increase the coupling holes, thereby enhancing the adjustment margin and mechanical strength of the coupling window.

[0082] This embodiment achieves POI that can be processed by both private and public networks by adding a second system signal transmission main module 2 corresponding to the private network, saving the cost of laying a separate private network system, realizing dual-network communication, and eliminating the impact of dual-network communication.

[0083] In an optional embodiment of the present invention, in step 11, the first frequency band signal is received through the second system signal transmission main module 2;

[0084] Step 111: The private network frequency band signal is filtered and received by the second system signal transmission main module 2 to obtain the first frequency band signal.

[0085] In this embodiment, the second system signal transmission main module 2 receives signals from the first frequency band, specifically signals from the 350-470MHz frequency band of the private network. Since the private network comprises multiple private network networks within a single frequency band, a bridge circuit is used in the second system signal transmission main module 2 to merge the multiple private network signals into a single signal. This single private network signal is then output as multiple identical private network signals destined for different antenna ports, ultimately distributing them to different antenna ports. The private network signals received by the second system signal transmission main module 2 include signals from railway and industrial wireless communication systems.

[0086] In an optional embodiment of the present invention, step 12, receiving at least one second frequency band signal and / or at least one third frequency band signal through the first system signal transmission main module 1, may include:

[0087] Step 121: The public network frequency band signal is filtered and received through the second system signal transmission main module 2 to obtain the second frequency band signal and / or the third frequency band signal.

[0088] In this embodiment, the first system signal transmission main module 1 receives at least one second frequency band signal and / or at least one third frequency band signal, specifically at least one 703-960MHz or at least one 1710-3800MHz frequency band signal from the public network. The public network comprises multiple public network networks with two frequency bands. Before entering the second system signal transmission main module 2, the multiple public network signals need to be merged into one through a bridge circuit in the first system signal transmission main module 1. This single public network signal is then output as multiple identical public network signals destined for different antenna ports, ultimately distributing them to different antenna ports. The public network signals received by the first system signal transmission main module 1 include signal sources from multiple communication operators and different frequency bands.

[0089] In an optional embodiment of the present invention, step 13, in which the first frequency band signal is resonated through the first resonator in the second system signal transmission main module 2 to obtain the first intermediate signal, may include:

[0090] Step 131: The first frequency band signal is nonlinearly distorted by the first resonator to obtain the first harmonic and intermodulation signal and the first frequency band retained signal;

[0091] Step 132: Obtain the first intermediate signal based on the first frequency band reserved signal and the first harmonic and intermodulation signal.

[0092] In this embodiment, a first frequency band signal enters a first resonator, and the first frequency band signal includes at least one private network signal. After the first frequency band signal enters the first resonator, nonlinear distortion occurs, thereby retaining the original frequency band signal while introducing new frequency components, resulting in a first frequency band retained signal and a first harmonic and intermodulation signal. The first intermediate signal includes the first frequency band retained signal and the first harmonic and intermodulation signal.

[0093] In an optional embodiment of the present invention, step 14, in which the second frequency band signal is resonated through the second resonator in the second system signal transmission main module 2 to obtain the second intermediate signal, may include:

[0094] Step 141: The second frequency band signal undergoes nonlinear distortion after passing through the second resonator, resulting in the second harmonic and intermodulation signal and the second frequency band retained signal;

[0095] Step 142: Obtain the second intermediate signal based on the second frequency band reserved signal and the second harmonic and intermodulation signal.

[0096] In this embodiment, the second frequency band signal enters the second resonator, and the second frequency band signal includes at least one public network signal. After the second frequency band signal enters the second resonator, nonlinear distortion occurs, thereby retaining the original frequency band signal while introducing new frequency components, resulting in the second frequency band retained signal and the second harmonic and intermodulation signal. The second intermediate signal includes the second frequency band retained signal and the second harmonic and intermodulation signal.

[0097] In an optional embodiment of the present invention, step 15, in which the first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module 2 to obtain the first output signal, may include:

[0098] Step 151: Based on the first inductance of the filter, the first harmonic and intermodulation signal in the first intermediate signal are first blocked to obtain the first blocked intermediate signal.

[0099] Step 152: Perform a first discharge on the first blocking intermediate signal according to the first capacitor of the filter to obtain a first discharge intermediate signal;

[0100] Step 153: The first bleed intermediate signal is blocked in the second way according to the second inductance of the filter to obtain the second blocked intermediate signal;

[0101] Step 154: The second blocking intermediate signal is discharged a second time according to the second capacitor of the filter to obtain the first output signal.

[0102] In this embodiment, the process of obtaining the first output signal from the first intermediate signal is consistent with the process of obtaining the second output signal from the second intermediate signal. The output signal is obtained by passing through the first inductor, second inductor, first capacitor, and second capacitor in the same filter. Before entering the filter, the first and second intermediate signals can be combined. After passing through the filter, a combined signal consisting of the first and second output signals is obtained.

[0103] In step 16, the second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module 2 to obtain the second output signal, which may include:

[0104] Step 161: Based on the first inductance of the filter, the second harmonic and intermodulation signal in the second intermediate signal are first blocked to obtain the third blocked intermediate signal;

[0105] Step 162: Perform a first discharge on the third blocking intermediate signal according to the first capacitor of the filter to obtain a second discharge intermediate signal;

[0106] Step 163: The second bleed intermediate signal is blocked in the second way according to the second inductance of the filter to obtain the fourth blocked intermediate signal;

[0107] Step 164: The second capacitor of the filter is used to perform a second discharge on the fourth blocking intermediate signal to obtain a second output signal.

[0108] In this embodiment, the combined signal of the first intermediate signal and the second intermediate signal is: The output taps of the first intermediate signal and / or the second intermediate signal are coupled to the filter transmission line using capacitive couplers, and then pass through the filter together. This ensures that the two frequency band signals undergo identical filtering processing, have the same group delay and amplitude response, and prevent changes in the relative relationship between the two frequency band signals. ,get For the first frequency band retained signal in the first intermediate signal and the second frequency band retained signal in the second intermediate signal, since the frequency is less than the filter frequency, it can be... and Approximately and For the first harmonic and intermodulation signal in the first intermediate signal and the second harmonic and intermodulation signal in the second intermediate signal, since the frequency is much higher than the filter frequency, it can be... and Approximately 0, thus obtaining ,Right now , .

[0109] in, This represents the combined signal of the first and second intermediate signals; This represents the combined signal of the first and second output signals obtained after filtering. and These represent the attenuation coefficients of the first and second intermediate signals, respectively, both of which are constants; and Indicates the first intermediate signal and the second intermediate signal; and This indicates the reserved signal for the first frequency band and the reserved signal for the second frequency band; and This represents the first harmonic and intermodulation signal, and the second harmonic and intermodulation signal; and Indicates the first output signal and the second output signal; The impulse response of the filter is a fixed time function determined by the filter hardware. It is an integral variable, representing a specific moment within all past time periods; Is The input signal at any given moment; Indicates from the past moment The time difference to the current time t; It is the memory weight function of the filter; This indicates the fixed time delay caused by the filter on the first intermediate signal; This indicates the fixed time delay that the filter causes to the second intermediate signal.

[0110] In an optional embodiment of the present invention, step 17, in which the third frequency band signal is resonated through the third resonator of the second system signal transmission main module 2 to obtain the third output signal, may include:

[0111] In step 171, the third frequency band signal in the third frequency range is subjected to nonlinear distortion by the third resonator to obtain the third harmonic and intermodulation signal and the third frequency band retained signal.

[0112] Step 172: Obtain the third output signal based on the third frequency band reserved signal and the third harmonic and intermodulation signal.

[0113] In this embodiment, the third frequency band signal enters the third resonator. The third frequency band signal includes at least one public network signal. After the third frequency band signal enters the third resonator, nonlinear distortion occurs, resulting in the appearance of new frequency components while retaining the original frequency band signal. This yields the third frequency band retained signal and the third harmonic and intermodulation signal. The third intermediate signal includes the third frequency band retained signal and the third harmonic and intermodulation signal.

[0114] Specifically, the input-output relationship of the first resonator can be determined through... To express, This represents the input of the first resonator. This represents the output of the first resonator;

[0115] When the first frequency band signal passes through the first resonator, the first frequency band retained signal and the first harmonic and intermodulation signal are obtained; the first frequency band retained signal is a linear term, i.e. The first harmonic and intermodulation signal includes second-order nonlinear terms, third-order nonlinear terms, and higher-order nonlinear terms, namely... , ... ; can be simplified to ;

[0116] in, Indicates the first frequency band signal; , ... This represents the frequencies corresponding to the m network signals in the first frequency band; t represents time. Indicates linear coefficients; , and Represents second-order, third-order, and b-order nonlinear coefficients; Indicates the reserved signal in the first frequency band; and This represents second-order, third-order, and b-order nonlinear terms; Indicates the first harmonic and intermodulation signal; These represent the multiples corresponding to the m network signals in the first frequency band, respectively. ; This indicates the frequency of the distortion product, namely the first harmonic and the intermodulation signal; This represents the amplitude coefficient, corresponding to the frequency. The amplitude of the distorted product.

[0117] according to The first intermediate signal is obtained; where, Indicates the reserved signal in the first frequency band; Indicates the first harmonic and intermodulation signal; This indicates the first intermediate signal.

[0118] The process by which the second frequency band signal passes through the second resonator to obtain the second frequency band retained signal and the second harmonic and intermodulation signal, and the process by which the third frequency band signal passes through the third resonator to obtain the third frequency band retained signal and the third harmonic and intermodulation signal, is consistent with the process by which the first frequency band signal passes through the first resonator to obtain the first frequency band retained signal and the first harmonic and intermodulation signal; wherein, the frequency of the second frequency band signal is greater than the frequency of the first frequency band signal, and the frequency of the third frequency band signal is greater than the frequency of the second frequency band signal.

[0119] In an optional embodiment of the present invention, step 18, combining the first output signal, the second output signal, and the third output signal and outputting them through the antenna port of the multi-system fusion combining platform, may include:

[0120] Step 181: The first output signal, the second output signal and the third output signal after being filtered by the filter are combined to form a full-band composite signal, and output through the antenna port of the multi-system fusion and combining platform.

[0121] In this embodiment, the first output signal, the second output signal, and the third output signal, after being filtered by the filter, are combined. This indicates that the final spectrum of the low-frequency composite signal is spliced ​​with the independently processed high-frequency signal to form a full-band composite signal. Because there is a sufficient guard interval of 960-1710MHz between the high-frequency and low-frequency signals, and because the high-frequency noise generated in the low-frequency signal has been eliminated by filters, power combining can be performed directly without additional filtering to prevent mutual interference. The combined signal covers a complete frequency band including all three signal bands. This represents the combined signal of the first and second output signals obtained after filtering. Indicates a full-band composite signal; and These represent the attenuation coefficients of the combined first and second output signals and the attenuation coefficient of the third output signal, respectively, both of which are constants. This indicates the third output signal.

[0122] The signal transmission method of the multi-system fusion and combining platform proposed in this invention adopts a modular design, which enables private networks to be used in conjunction with existing and current conventional public network POIs for ultra-low frequency channel upgrades and transformations. At the same time, ultra-wideband design is carried out in the private network frequency band to facilitate the subsequent expansion of ultra-low frequency ports, reduce communication costs, and realize dual networks communicating through a set of equipment without interference.

[0123] like Figures 2 to 8 As shown, this embodiment of the invention also provides a multi-system fusion and convergence platform 20, comprising:

[0124] The second system signal transmission main module 2 receives the first frequency band signal;

[0125] The first system signal transmission main module 1 receives at least one second frequency band signal and / or at least one third frequency band signal;

[0126] The first frequency band signal is resonated by the first resonator in the second system signal transmission main module 2 to obtain the first intermediate signal;

[0127] The second frequency band signal is resonated by the second resonator in the second system signal transmission main module 2 to obtain the second intermediate signal;

[0128] The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module 2 to obtain the first output signal;

[0129] The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module 2 to obtain the second output signal;

[0130] The third frequency band signal is resonated through the third resonator of the second system signal transmission main module 2 to obtain the third output signal;

[0131] The first output signal, the second output signal, and the third output signal are combined and then output through the antenna port of the multi-system fusion combining platform.

[0132] Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater than or equal to the maximum value of the second frequency range of the second frequency band signal.

[0133] Optionally, the second system signal transmission main module 2 is specifically used for:

[0134] The first frequency band signal in the first frequency range is nonlinearly distorted by the first resonator to obtain the first harmonic and intermodulation signal and the first frequency band retained signal;

[0135] The first intermediate signal is obtained based on the first frequency band reserved signal and the first harmonic and intermodulation signal.

[0136] Optionally, the second system signal transmission main module 2 is specifically used for:

[0137] The second frequency band signal in the second frequency range is nonlinearly distorted by the second resonator to obtain the second harmonic and intermodulation signal and the second frequency band retained signal;

[0138] The second intermediate signal is obtained based on the second frequency band reserved signal and the second harmonic and intermodulation signal.

[0139] Optionally, the second system signal transmission main module 2 is specifically used for:

[0140] The first harmonic and intermodulation signal in the first intermediate signal are first blocked by the first inductance of the filter to obtain the first blocked intermediate signal.

[0141] The first blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the first discharged intermediate signal;

[0142] The second inductance of the filter is used to perform a second blocking on the first bleed intermediate signal to obtain a second blocked intermediate signal;

[0143] The second blocking intermediate signal is discharged a second time according to the second capacitor of the filter to obtain the first output signal.

[0144] Optionally, the second system signal transmission main module 2 is specifically used for:

[0145] The first inductance of the filter is used to first block the second harmonic and intermodulation signal in the second intermediate signal to obtain the third blocked intermediate signal.

[0146] The third blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the second discharged intermediate signal;

[0147] The second inductance of the filter is used to perform a second blocking on the second bleed intermediate signal to obtain a fourth blocked intermediate signal;

[0148] The second output signal is obtained by second-discharging the fourth blocking intermediate signal using the second capacitor of the filter.

[0149] Optionally, the second system signal transmission main module 2 is specifically used for:

[0150] The third frequency band signal in the third frequency range is subjected to nonlinear distortion by the third resonator to obtain the third harmonic and intermodulation signal and the third frequency band retained signal;

[0151] The third output signal is obtained based on the third frequency band reserved signal and the third harmonic and intermodulation signal.

[0152] Optionally, after combining the first output signal, the second output signal, and the third output signal, the output is transmitted through the antenna port of the multi-system fusion combining platform, including:

[0153] The first output signal, the second output signal, and the third output signal, after being filtered by the filter, are combined to form a full-band composite signal, which is then output through the antenna port of the multi-system fusion and combining platform.

[0154] Optionally, the first resonator, the second resonator, and the third resonator each include:

[0155] The resonant unit is used to nonlinearly distort the input signal to obtain harmonic and intermodulation signals and frequency band reserved signals; based on the harmonic and intermodulation signals and frequency band reserved signals, a first intermediate signal, a second intermediate signal, or a third output signal is obtained.

[0156] Optionally, the filter includes:

[0157] First inductor; first capacitor connected to the first inductor;

[0158] The second inductor; the second capacitor connected to the second inductor.

[0159] It should be noted that this device is a device corresponding to the above method. All implementation methods in the above method embodiments are applicable to this embodiment and can achieve the same technical effect.

[0160] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0161] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0162] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0163] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0164] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0165] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0166] Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent solutions of the present invention. Moreover, the steps performing the above series of processes can naturally be executed in the order described, but are not necessarily required to be executed in chronological order; some steps can be executed in parallel or independently of each other. Those skilled in the art will understand that all or any step or component of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof. This is something that those skilled in the art can achieve by using their basic programming skills after reading the description of the present invention.

[0167] Therefore, the object of the present invention can also be achieved by running a program or a set of programs on any computing device. The computing device can be a known general-purpose device. Therefore, the object of the present invention can also be achieved simply by providing a program product containing program code for implementing the method or apparatus. That is, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present invention, it is obvious that the components or steps can be decomposed and / or recombined. These decompositions and / or recombinations should be considered equivalent to the present invention. Furthermore, the steps for performing the above series of processes can naturally be performed in the order described, but are not necessarily required to be performed in chronological order. Some steps can be performed in parallel or independently of each other.

[0168] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A signal transmission method for a multi-system fusion and combining platform, characterized in that, The multi-system fusion and combining platform includes: a first system signal transmission main module (1) and a second system signal transmission main module (2) electrically connected to the output terminal of the first system signal transmission main module (1), the method including: The first frequency band signal is received through the second system signal transmission main module (2); The first system signal transmission main module (1) receives at least one second frequency band signal and / or at least one third frequency band signal; The first frequency band signal is resonated by the first resonator in the second system signal transmission main module (2) to obtain the first intermediate signal; The second frequency band signal is resonated by the second resonator in the second system signal transmission main module (2) to obtain the second intermediate signal; The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module (2) to obtain the first output signal; The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module (2) to obtain the second output signal; The third frequency band signal is resonated through the third resonator of the second system signal transmission main module (2) to obtain the third output signal; The first output signal, the second output signal, and the third output signal are combined and then output through the antenna port of the multi-system fusion combining platform. Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater 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 combining platform according to claim 1, characterized in that, The first frequency range of the first frequency band signal is 350-470MHz; the first frequency band signal is resonated through the first resonator in the second system signal transmission main module (2) to obtain a first intermediate signal, including: The first frequency band signal in the first frequency range is nonlinearly distorted by the first resonator to obtain the first harmonic and intermodulation signal and the first frequency band retained signal; The first intermediate signal is obtained based on the first frequency band reserved signal and the first harmonic and intermodulation signal.

3. The signal transmission method of the multi-system fusion and combining platform according to claim 1, characterized in that, The second frequency range of the second frequency band signal is 703-960MHz; the second frequency band signal is resonated through the second resonator in the second system signal transmission main module (2) to obtain a second intermediate signal, including: The second frequency band signal in the second frequency range is nonlinearly distorted by the second resonator to obtain the second harmonic and intermodulation signal and the second frequency band retained signal; The second intermediate signal is obtained based on the second frequency band reserved signal and the second harmonic and intermodulation signal.

4. The signal transmission method of the multi-system fusion and combining platform according to claim 2, characterized in that, The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module (2) to obtain the first output signal, including: The first harmonic and intermodulation signal in the first intermediate signal are first blocked by the first inductance of the filter to obtain the first blocked intermediate signal. The first blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the first discharged intermediate signal; The second inductance of the filter is used to perform a second blocking on the first bleed intermediate signal to obtain a second blocked intermediate signal; The second blocking intermediate signal is discharged a second time according to the second capacitor of the filter to obtain the first output signal.

5. The signal transmission method of the multi-system fusion and combining platform according to claim 3, characterized in that, The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module (2) to obtain the second output signal, including: The first inductance of the filter is used to first block the second harmonic and intermodulation signal in the second intermediate signal to obtain the third blocked intermediate signal. The third blocking intermediate signal is first discharged according to the first capacitor of the filter to obtain the second discharged intermediate signal; The second inductance of the filter is used to perform a second blocking on the second bleed intermediate signal to obtain a fourth blocked intermediate signal; The second output signal is obtained by second-discharging the fourth blocking intermediate signal using the second capacitor of the filter.

6. The signal transmission method of the multi-system fusion and combining platform according to claim 1, characterized in that, The third frequency range of the third frequency band signal is 1710-3800MHz; the third frequency band signal is resonated through the third resonator of the second system signal transmission main module (2) to obtain a third output signal, including: The third frequency band signal in the third frequency range is subjected to nonlinear distortion by the third resonator to obtain the third harmonic and intermodulation signal and the third frequency band retained signal; The third output signal is obtained based on the third frequency band reserved signal and the third harmonic and intermodulation signal.

7. The signal transmission method of the multi-system fusion and combining platform according to claim 1, characterized in that, After combining the first, second, and third output signals, the output signal is output through the antenna port of the multi-system fusion combining platform, including: The first output signal, the second output signal, and the third output signal, after being filtered by the filter, are combined to form a full-band composite signal, which is then output through the antenna port of the multi-system fusion and combining platform.

8. A multi-system fusion and integration platform, characterized in that, include: First system signal transmission main module (1); A second system signal transmission main module (2) is electrically connected to the output terminal of the first system signal transmission main module (1); The second system signal transmission main module (2) includes: a first frequency band path, a second frequency band path, a third frequency band path, and a filter; a first resonator is provided in the first frequency band path, a second resonator is provided in the second frequency band path, and a third resonator is provided in the third frequency band path; the outputs of the first resonator and the second resonator are connected to the input of the filter, and the outputs of the third resonator and the filter are combined and then connected to the antenna port of the multi-system fusion combining platform; The first frequency band signal is received through the second system signal transmission main module (2); The first system signal transmission main module (1) receives at least one second frequency band signal and / or at least one third frequency band signal; The first frequency band signal is resonated by the first resonator in the second system signal transmission main module (2) to obtain the first intermediate signal; The second frequency band signal is resonated by the second resonator in the second system signal transmission main module (2) to obtain the second intermediate signal; The first intermediate signal is filtered by the filter connected in series with the first resonator in the second system signal transmission main module (2) to obtain the first output signal; The second intermediate signal is filtered by the filter connected in series with the second resonator in the second system signal transmission main module (2) to obtain the second output signal; The third frequency band signal is resonated through the third resonator of the second system signal transmission main module (2) to obtain the third output signal; The first output signal, the second output signal, and the third output signal are combined and then output through the antenna port of the multi-system fusion combining platform. Wherein, the maximum value of the first frequency range of the first frequency band signal is less 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 less 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 greater than or equal to the maximum value of the second frequency range of the second frequency band signal.

9. The multi-system fusion and combining platform according to claim 8, characterized in that, The first resonator, the second resonator, and the third resonator each include: The resonant unit is used to nonlinearly distort the input signal to obtain harmonic and intermodulation signals and frequency band reserved signals; based on the harmonic and intermodulation signals and frequency band reserved signals, a first intermediate signal, a second intermediate signal, or a third output signal is obtained.

10. The multi-system fusion and combining platform according to claim 8, characterized in that, The filter includes: First inductor; first capacitor connected to the first inductor; The second inductor; the second capacitor connected to the second inductor.

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