Radio frequency unit, signal biasing unit, terminal unit and fusion system

Abstract

A radio frequency unit, a signal biasing unit, a terminal unit and a fusion system, which are used for realizing a low-cost deployment scheme of an antenna system and a sensor system. The fusion system comprises a signal processing unit and N terminal units, wherein the N terminal units comprise at least one radiation unit and at least one sensing unit, and / or comprise at least one radiation and sensing fusion unit, and the signal processing unit is used for sending radio frequency transmission signals and / or sensing request signals to the N terminal units, or receiving radio frequency reception signals and / or sensing collection signals from the N terminal units. Radiation units and sensing units are integrated in one feed network, such that not only can the deployment of an antenna system and a sensor system be completed at one time, but information transmission of the two systems can also be completed by means of multiplexing one transceiving link in the feed network, thereby effectively saving on manpower and material costs, and realizing a low-cost deployment scheme of the antenna system and the sensor system.

Description

A radio frequency unit, a signal bias unit, a terminal unit and a fusion system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on July 25, 2023, with application number 202310923070.3 and application name "A radio frequency unit, signal bias unit, terminal unit and fusion system", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a radio frequency unit, a signal bias unit, a terminal unit and a fusion system. Background Art

[0004] Due to the shielding effect of buildings, outdoor base station signals struggle to effectively propagate indoors. Therefore, distributed antenna systems are often deployed indoors to improve signal strength. Indoor antenna systems evenly transmit outdoor communication signals to every corner of the room, effectively addressing the uneven distribution of indoor signal strength and quality. Consequently, they have become a fundamental infrastructure, with nearly every building equipped with a corresponding indoor antenna system.

[0005] Similarly, for safety reasons, various sensors are often deployed indoors. For example, currently deployed indoors include smoke sensors in residential buildings, temperature sensors in computer rooms, vibration sensors in earthquake-prone areas, and humidity sensors in coastal areas. As people's quality of life improves, sensors have become a fundamental part of infrastructure. Wherever people live indoors, sensor systems are deployed, ensuring the safety of life and property by promptly identifying potential risks.

[0006] However, while some indoor environments deploy both antenna systems and sensor systems, current deployment solutions often require significant human and material resources, resulting in high deployment costs and inconvenient maintenance. Therefore, further research is needed to explore low-cost deployment of both antenna and sensor systems.

[0007] Summary of the Invention

[0008] The present application provides a radio frequency unit, a signal bias unit, a terminal unit and a fusion system to implement a low-cost deployment solution for an antenna system and a sensor system.

[0009] In a first aspect, the present application provides a radiation and perception fusion system, which includes a signal processing unit and N terminal units connected to the signal processing unit, wherein the N terminal units include at least one radiation unit and at least one perception unit, N is a positive integer greater than or equal to 2, and / or include at least one radiation and perception fusion unit, N is a positive integer. In the scenario of sending information, the signal processing unit may send a radio frequency transmission signal and / or a perception request signal to the N terminal units. In the scenario of receiving information, the signal processing unit may receive a radio frequency reception signal from the radiation unit in the N terminal units, a perception acquisition signal from the perception unit in the N terminal units, and a radio frequency reception signal and / or a perception acquisition signal from the fusion unit in the N terminal units.

[0010] In the above scheme, by integrating the radiation unit and the sensing unit into a set of feeding networks, not only can the deployment of the antenna system and the sensor system be completed at one time, saving labor costs, but the transceiver links in the same feeding network can also be reused to complete the information transmission of the antenna system and the sensing system, saving material costs. In this way, by designing a fusion system of the antenna system and the sensing system, it is helpful to realize a low-cost deployment scheme for the antenna system and the sensing system.

[0011] In a possible design of the first aspect, the fusion system may also include a power supply, which is connected to the signal processing unit. The power supply is used to send a DC power supply signal to the signal processing unit, and the signal processing unit is also used to send the DC power supply signal from the power supply to N terminal units.

[0012] In the above design, after the sensing unit is integrated into the feeding network of the existing antenna system, even if the original power supply capacity of the feeding network cannot meet the needs of the terminal unit in the integrated feeding network, the terminal unit in the feeding network can be powered by the set external power supply to support the integration of the radiation unit and the sensing unit into a fusion unit.

[0013] In a possible design of the first aspect, the signal processing unit may include a radio frequency unit and a signal bias unit, and the signal bias unit is connected to the radio frequency unit and the N terminal units, respectively. In the scenario of sending information, the radio frequency unit is used to send the radio frequency transmission signal and / or the perception request signal to the signal bias unit, and the signal bias unit is used to send the radio frequency transmission signal and / or the perception request signal from the radio frequency unit to the N terminal units. In the scenario of receiving information, the signal bias unit is used to send the radio frequency reception signal from the radiation unit in the N terminal units, the perception acquisition signal from the perception unit in the N terminal units, and the radio frequency reception signal and / or the perception acquisition signal from the fusion unit in the N terminal units to the radio frequency unit, and the radio frequency unit is used to receive the radio frequency reception signal and / or the perception acquisition signal from the signal bias unit.

[0014] In the above design, the signal processing unit includes a radio frequency unit (RFU) and a signal bias unit. The RFU structure can remain the same as that of the existing antenna system, while the signal bias unit can be a newly developed component added to the existing antenna system. This allows the design to directly utilize the existing RFU in the existing antenna system. Regardless of the scenario, as long as an antenna system is already deployed, the newly developed signal bias unit can be added to the existing antenna system to achieve the effect of integrating sensing functions into the antenna system. This integration method is relatively simple, requiring only minor modifications to the existing antenna system without requiring structural changes to the existing RFU, helping to reduce R&D costs, labor costs, and material costs.

[0015] In one possible implementation of the above design, the signal bias unit may include T third interfaces connected to T RF cables, each of which is provided with one or more terminal units, where T is a positive integer. In the information transmission scenario, the signal bias unit may send RF transmission signals and / or sensing request signals via the T third interfaces. In the information reception scenario, the signal bias unit may receive RF reception signals and / or sensing acquisition signals via the T third interfaces.

[0016] In the above implementation, N terminal units are dispersedly set up through T RF cables, so that the communication between the signal processing unit and the N terminal units can be evenly distributed on different RF cables, reducing the communication pressure of distributing all N terminal units on one RF cable.

[0017] In one possible implementation of the above design, the RF unit may include M RF interfaces, and the signal bias unit may include M first interfaces and T third interfaces. The M RF interfaces are connected to the M first interfaces in a one-to-one correspondence, and the T third interfaces are connected to N terminal units, where M and T are positive integers. In the information transmission scenario, the RF unit may send RF transmit signals through the M RF interfaces, and the signal bias unit may receive RF transmit signals through the T third interfaces. In the signal reception scenario, the signal bias unit may receive RF receive signals through the T third interfaces, and the RF unit may receive RF receive signals through the M RF interfaces.

[0018] In the above implementation method, the M RF interfaces can be the original RF interfaces of the RF unit on the existing antenna system. By configuring the interface of the signal bias unit with reference to the original RF interface of the RF unit, the RF transceiver function in the fusion unit can be realized without modifying the RF unit interface, thereby minimizing the modification of the original antenna system and reducing labor costs.

[0019] In one possible implementation of the above design, the RF unit may include a sensing interface, and the signal bias unit may include a second interface and T third interfaces, the sensing interface being connected to the second interface, and the T third interfaces being connected to N terminal units, where T is a positive integer. In the scenario of sending information, the RF unit may send a sensing request signal via the sensing interface, the signal bias unit may receive the sensing request signal via the second interface, and send the sensing request signal via the T third interfaces. In the scenario of receiving information, the signal bias unit may receive a sensing acquisition signal via the T third interfaces, and send the sensing acquisition signal via the second interface, and the RF unit may receive the sensing acquisition signal via the sensing interface.

[0020] In the above implementation method, the perception interface can be the original interface of the RF unit on the existing antenna system, such as the AISC interface. By configuring the interface of the signal bias unit with reference to the original interface of the RF unit, the perception transceiver function in the fusion unit can be realized without modifying the RF unit interface, thereby minimizing the modification of the original antenna system and reducing labor costs.

[0021] In one possible implementation of the above design, the signal bias unit may include a power interface and T third interfaces, where the power interface is connected to a power source and the T third interfaces are connected to N terminal units, where T is a positive integer. The signal bias unit may also receive a DC power signal from the power source via the power interface and transmit the DC power signal via the T third interfaces. In this way, the signal bias unit can provide the DC power signal from the power source to the N terminal units.

[0022] In one possible implementation of the above design, the RF transmit signal and RF receive signal received by the signal bias unit are high-frequency AC signals, and the sensing request signal and sensing acquisition signal received by the signal bias unit are low-frequency AC signals. In this case, the signal bias unit may include a first bias circuit, which includes at least one first filter element, a second filter element, and a third filter element. The first end of the at least one first filter element is used to receive the RF transmit signal from the RF unit or the RF receive signal from the terminal unit, the first end of the second filter element is used to receive the sensing request signal from the RF unit or the sensing acquisition signal from the terminal unit, and the first end of the third filter element is used to receive a DC power supply signal. The second end of the at least one first filter element, the second end of the second filter element, and the second end of the third filter element are connected and then connected to N terminal units. The first filter element can be used to filter DC signals and low-frequency AC signals from the input signal, the second filter element can be used to filter DC signals and high-frequency AC signals from the input signal, and the third filter element can be used to filter AC signals from the input signal.

[0023] In the above implementation, by setting the first filter element, the second filter element and the third filter element in the signal bias unit, relatively pure RF transmission signals, perception request signals and DC power supply signals can be transmitted to the terminal unit through the signal bias unit, and relatively pure RF reception signals and perception acquisition signals can be transmitted to the RF unit through the signal bias unit.

[0024] In a further possible implementation, the first and second filter elements are capacitors, and the third filter element is an inductor. This allows the capacitor's characteristic of "passing AC and blocking DC" to be utilized. By setting the first filter element's capacitor passband frequency to a high frequency, relatively pure high-frequency AC RF transmission and reception signals can be filtered out. By setting the second filter element's capacitor passband frequency to a low frequency, relatively pure low-frequency AC sensing request and acquisition signals can be filtered out. Furthermore, the inductor's characteristic of "passing DC and blocking AC" can be utilized to filter out relatively pure DC power supply signals.

[0025] In a possible implementation of the above design, the perception request signal from the radio frequency unit is a differential signal, and the perception acquisition signal from the terminal unit is a low-frequency AC signal. In this case, the signal bias unit may include a first conversion circuit, the first interface of the first conversion circuit is used to receive the perception request signal from the radio frequency unit, and the second interface of the first conversion circuit is used to connect N terminal units. In the scenario of sending information, the first conversion circuit can convert the perception request signal received by its first interface into a low-frequency AC signal, and send the converted perception request signal through its second interface. In the scenario of receiving signals, the first conversion circuit can receive the perception acquisition signal from the terminal unit through its second interface, convert the perception acquisition signal into a differential signal, and then send the converted perception acquisition signal through its first interface.

[0026] In the above implementation method, the type of signal sent by the network management device is converted into the type of signal received by the perception unit through the first conversion circuit, and the type of signal sent by the perception unit is converted into the type of signal received by the network management device, so that smooth communication between the network management device and the perception unit can be achieved.

[0027] In a possible design of the first aspect, the signal processing unit may include a radio frequency unit, the radio frequency unit including a radio frequency processing circuit and a bias processing circuit, and the bias processing circuit is connected to the radio frequency processing circuit and the N terminal units, respectively. In the scenario of sending information, the radio frequency processing circuit may send a radio frequency transmission signal and / or a perception request signal to the bias processing circuit, and the bias processing circuit may send the radio frequency transmission signal and / or the perception request signal from the radio frequency processing circuit to the N terminal units. In the scenario of receiving signals, the bias processing circuit may send radio frequency reception signals and / or perception acquisition signals from the N terminal units to the radio frequency processing circuit, and the radio frequency processing circuit may receive the radio frequency reception signal and / or perception acquisition signal from the bias processing circuit.

[0028] In the above design, the signal processing unit can be a unit obtained by improving the structure of the radio frequency unit in the existing antenna system. By integrating the bias processing function into the radio frequency unit of the existing antenna system, a system integrating the sensing function can be obtained by directly replacing the radio frequency unit in the existing antenna system. Such a setting can reduce labor and material costs while eliminating the need to set up new components, thereby reducing the space occupied by the system due to adding new functions and realizing a miniaturized design of the system.

[0029] In one possible implementation of the above design, the RF processing circuit may include a first interface and M second interfaces, and the bias processing circuit may include M first interfaces and T second interfaces. The M second interfaces of the RF processing circuit are connected to the M first interfaces of the bias processing circuit, and the T second interfaces of the bias processing circuit are connected to N terminal units, where M and T are positive integers. In the scenario of sending information, the RF processing circuit may receive RF transmission signals and / or perception request signals through its first interface, and send RF transmission signals and / or perception request signals to the bias processing circuit through its M second interfaces. The bias processing circuit may receive RF transmission signals and / or perception request signals from the RF processing circuit through its M first interfaces, and send RF transmission signals and / or perception request signals to the N terminal units through its T second interfaces. In the scenario of receiving information, the bias processing circuit can receive RF reception signals and / or perception acquisition signals from N terminal units through its T second interfaces, and send RF reception signals and / or perception acquisition signals to the RF processing circuit through its M first interfaces. The RF processing circuit can receive RF reception signals and / or perception acquisition signals from the bias processing circuit through its M second interfaces, and send RF reception signals and / or perception acquisition signals through its first interface.

[0030] In the above implementation, by configuring the interface connection relationship between the RF processing circuit and the bias processing circuit, a mixed signal including an RF transmission signal and a perception request signal, or a mixed signal including an RF reception signal and a perception acquisition signal can be transmitted through the interface. On the basis of the RF transceiver function of the RF unit of the existing antenna system, the perception transceiver function is further integrated.

[0031] In a possible implementation of the above design, the RF processing circuit may include a signal separation / coupling circuit, a second conversion circuit and a signal coupling / separation circuit, the second interface of the signal separation / coupling circuit is connected to the second interface of the signal coupling / separation circuit, the third interface of the signal separation / coupling circuit is connected to the first interface of the second conversion circuit, the second interface of the second conversion circuit is connected to the third interface of the signal coupling / separation circuit, and the first interface of the signal coupling / separation circuit is connected to the bias processing circuit. In the scenario of sending signals, the signal separation / coupling circuit can receive RF transmission signals and / or perception request signals through its first interface, send RF transmission signals through its second interface, and send perception request signals through its third interface; the second conversion circuit can convert the perception request signal input from its first interface into a low-frequency AC signal, and send the converted perception request signal through its second interface; the signal coupling / separation circuit can receive RF transmission signals through its second interface, receive the converted perception request signal through its third interface, and send RF transmission signals and / or converted perception request signals through its first interface. In the signal receiving scenario, the signal coupling / separation circuit can receive the RF receiving signal and / or the perception acquisition signal through its first interface, send the RF receiving signal through its second interface, and send the perception acquisition signal through its third interface; the second conversion circuit can convert the perception acquisition signal input by its second interface into a differential signal, and send the converted perception acquisition signal through its first interface; the signal separation / coupling circuit can receive the RF receiving signal through its second interface, receive the perception acquisition signal through its third interface, and send the RF receiving signal and / or the perception request signal through its first interface;

[0032] In the above implementation method, by configuring a signal separation / coupling circuit, a second conversion circuit and a signal coupling / separation circuit in the original radio frequency unit, these three circuits can convert the type of signal sent by the network management device into the type of signal received by the perception unit, and also convert the type of signal sent by the perception unit into the type of signal received by the network management device, thereby providing support for smooth communication between the network management device and the perception unit.

[0033] In one possible implementation of the above design, the bias processing circuit may include a power interface connected to a power supply. The bias processing circuit may also receive a DC power signal from the power supply through its power interface and transmit the DC power signal to the N end units. In this way, the DC power signal output by the power supply, after passing through the power interface of the RF unit, can be fully supplied to the N end units, achieving maximum power supply capability.

[0034] In one possible implementation of the above design, the bias processing circuit may include a seventh filter element. A first end of the seventh filter element corresponds to the bias processing circuit's power interface, and a second end of the seventh filter element is connected to the N terminal units. The seventh filter element can filter AC signals from the input signal. In this way, even if the DC power supply signal output by the power supply is impure, the seventh filter element can filter the AC signals from the impure signal, allowing a relatively pure DC power supply signal to be transmitted to the N terminal units through the seventh filter element.

[0035] In a further possible implementation, the seventh filtering element is an inductor, so that the characteristic of the inductor of "passing DC and blocking AC" can be utilized to filter and obtain a relatively pure DC power supply signal.

[0036] In a possible design of the first aspect, the radiation and perception fusion unit may include a radiation unit, a perception unit, and a second bias circuit. The first interface of the second bias circuit is connected to the signal processing unit, the second interface of the second bias circuit is connected to the radiation unit, and the third interface of the second bias circuit is connected to the perception unit. In the information transmission scenario, the second bias circuit may receive a radio frequency transmission signal and / or a perception request signal from the signal processing unit through its first interface, send a radio frequency transmission signal to the radiation unit through its second interface, and send a perception request signal to the perception unit through its third interface; the radiation unit may convert the radio frequency transmission signal from the second bias circuit into an electromagnetic wave signal and send it out; the perception unit may perform corresponding collection operations according to the instructions of the perception request signal from the second bias circuit. In the signal reception scenario, the radiation unit may convert the received electromagnetic wave signal into a radio frequency reception signal and send it to the second bias circuit. The perception unit may send the perception collection signal collected over a period of time to the second bias circuit. The second bias circuit may receive the radio frequency reception signal from the radiation unit through its second interface, receive the perception collection signal from the perception unit through its third interface, and send the radio frequency reception signal and / or the perception collection signal to the signal processing unit through its first interface.

[0037] In the above design, by setting a second bias circuit in the fusion unit, the function of separating and transmitting the signal input from the signal processing unit to the fusion unit and merging and transmitting the signal input from the radiation unit and the sensing unit can be realized, thereby realizing the fusion of the antenna transceiver function and the sensing transceiver function.

[0038] In one possible implementation of the above design, the second bias circuit may further include a fourth interface connected to the power interface of the sensing unit. The second bias circuit may also receive a DC power signal from the signal processing unit via its first interface and transmit the DC power signal to the sensing unit via its fourth interface. In this manner, the DC power signal output by the power supply may be provided to the N terminal units via the second bias circuit.

[0039] In one possible implementation of the above design, the second bias circuit may include a fourth filter element, a fifth filter element, and a sixth filter element. The first end of the fourth filter element, the first end of the fifth filter element, and the first end of the sixth filter element are connected and then connected to the first interface of the second bias circuit. The second end of the fourth filter element corresponds to the second interface of the second bias circuit, the second end of the fifth filter element corresponds to the third interface of the second bias circuit, and the second end of the sixth filter element corresponds to the fourth interface of the second bias circuit. The fourth filter element can be used to filter DC signals and low-frequency AC signals from the input signal, the fifth filter element can be used to filter DC signals and high-frequency AC signals from the input signal, and the sixth filter element can be used to filter AC signals from the input signal.

[0040] In the above implementation, by setting the fourth filter element, the fifth filter element and the sixth filter element in the second bias circuit, relatively pure RF transmission signals, perception request signals and DC power supply signals can be transmitted to the terminal unit through the second bias circuit, and relatively pure RF reception signals and perception acquisition signals can be transmitted to the signal processing unit through the second bias circuit.

[0041] In a further possible implementation, the fourth and fifth filter elements are capacitors, and the sixth filter element is an inductor. This allows the capacitor's characteristic of "passing AC and blocking DC" to be utilized. By setting the fourth filter element's capacitor passband frequency to a high frequency, relatively pure high-frequency AC RF transmission and reception signals can be filtered out. By setting the fifth filter element's capacitor passband frequency to a low frequency, relatively pure low-frequency AC sensing request and acquisition signals can be filtered out. Furthermore, the inductor's characteristic of "passing DC and blocking AC" can be utilized to filter out relatively pure DC power supply signals.

[0042] In one possible design of the first aspect, the fusion system may further include a baseband unit connected to the signal processing unit. In the information transmission scenario, the baseband unit may send a radio frequency transmit signal to the signal processing unit, and the signal processing unit may receive the radio frequency transmit signal from the baseband unit. In the information reception scenario, the signal processing unit may send a radio frequency receive signal to the baseband unit, and the baseband unit may receive the radio frequency receive signal from the signal processing unit.

[0043] In the above design, by setting the baseband unit to be connected to the signal processing unit, the signal processing unit can realize the communication connection between the baseband unit and the radiation unit or fusion unit in the terminal unit to realize the transmission and reception operations of the radio frequency signal.

[0044] In one possible design of the first aspect, the fusion system may further include a network management device connected to the baseband unit. In the information transmission scenario, the network management device may send a perception request signal to the baseband unit, the baseband unit may send the perception request signal to the signal processing unit, and the signal processing unit may receive the perception request signal from the baseband unit. In the information reception scenario, the signal processing unit may send a perception collection signal to the baseband unit, the baseband unit may receive the perception collection signal from the signal processing unit, and send the perception collection signal to the network management device, and the network management device may receive the perception collection signal from the baseband unit.

[0045] In the above design, by setting up a network management device connected to the baseband unit, the communication connection between the network management device and the perception unit or fusion unit in the terminal unit can be realized through the baseband unit and the signal processing unit to realize the sending and receiving operations of the perception signal.

[0046] In a second aspect, the present application provides a radio frequency unit, which includes a first interface and at least one second interface, the first interface is used to connect to a baseband unit, and the at least one second interface is used to connect to N terminal units, wherein the N terminal units include at least one radiation unit and at least one sensing unit, N is an integer greater than or equal to 2, and / or include at least one radiation and sensing fusion unit, N is a positive integer. In the scenario of sending information, the radio frequency unit is used to: receive a radio frequency transmission signal and / or a sensing request signal from the baseband unit through the first interface, and send a radio frequency transmission signal and / or a sensing request signal to the N terminal units through at least one second interface. In the scenario of receiving information, the radio frequency unit is used to: receive a radio frequency reception signal from the radiation unit in the N terminal units, a sensing acquisition signal from the sensing unit in the N terminal units, and a radio frequency reception signal and / or a sensing acquisition signal from the fusion unit in the N terminal units through at least one second interface, and send a radio frequency reception signal and / or a sensing acquisition signal to the baseband unit through the first interface.

[0047] In one possible design of the second aspect, the at least one second interface may include M RF interfaces and sensing interfaces, the M RF interfaces being connected in a one-to-one correspondence to the M first interfaces of the signal bias unit, the sensing interface being connected to the second interface of the signal bias unit, and the third interface of the signal bias unit being connected to N terminal units, where M is a positive integer. The RF unit is specifically configured to send RF transmit signals or receive RF receive signals via the M RF interfaces, and to send sensing request signals or receive sensing acquisition signals via the sensing interface.

[0048] In a possible design of the second aspect, the RF unit may include a RF processing circuit and a bias processing circuit, the RF processing circuit includes a first interface and M second interfaces, the bias processing circuit includes M first interfaces and T second interfaces, the first interface of the RF processing circuit corresponds to the first interface of the RF unit, the M second interfaces of the RF processing circuit are connected to the M first interfaces of the bias processing circuit, the T second interfaces of the bias processing circuit correspond to at least one third interface of the RF unit, and T is a positive integer. In the scenario of sending information, the RF processing circuit can receive RF transmission signals and / or perception request signals through its first interface, and send RF transmission signals and / or perception request signals to the bias processing circuit through its M second interfaces; the bias processing circuit can receive RF transmission signals and / or perception request signals from the RF processing circuit through its M first interfaces, and send RF transmission signals and / or perception request signals to N terminal units through its T second interfaces. In the scenario of receiving information, the bias processing circuit can receive RF reception signals and / or perception acquisition signals from N terminal units through its T second interfaces, and send RF reception signals and / or perception acquisition signals to the RF processing circuit through its M first interfaces; the RF processing circuit can receive RF reception signals and / or perception acquisition signals from the bias processing circuit through its M second interfaces, and send RF reception signals and / or perception acquisition signals through its first interface.

[0049] In a possible implementation of the above design, the RF processing circuit may include a signal separation / coupling circuit, a second conversion circuit, and a signal coupling / separation circuit, wherein the first interface of the signal separation / coupling circuit corresponds to the first interface of the RF processing circuit, the second interface of the signal separation / coupling circuit is connected to the second interface of the signal coupling / separation circuit, the third interface of the signal separation / coupling circuit is connected to the first interface of the second conversion circuit, the second interface of the second conversion circuit is connected to the third interface of the signal coupling / separation circuit, and the first interface of the signal coupling / separation circuit is connected to M second interfaces of the RF processing circuit. In the scenario of sending information, the signal separation / coupling circuit may receive a RF transmission signal and / or a perception request signal through its first interface, send a RF transmission signal through its second interface, and send a perception request signal through its third interface; the second conversion circuit may convert the perception request signal input from its first interface into a low-frequency AC signal, and send the converted perception request signal through its second interface; the signal coupling / separation circuit may receive a RF transmission signal through its second interface, receive the converted perception request signal through its third interface, and send the RF transmission signal and / or the converted perception request signal through its first interface. In the scenario of receiving information, the signal coupling / separation circuit can receive RF reception signals and / or perception acquisition signals through its first interface, send RF reception signals through its second interface, and send perception acquisition signals through its third interface; the second conversion circuit can convert the perception acquisition signals input by its second interface into differential signals, and send the converted perception acquisition signals through its first interface; the signal separation / coupling circuit can receive RF reception signals through its second interface, receive perception acquisition signals through its third interface, and send RF reception signals and / or perception request signals through its first interface.

[0050] In a possible implementation of the above design, the bias processing circuit may also include a power supply interface, which is connected to a power supply. The bias processing circuit is also used to: receive a DC power supply signal from the power supply through its power supply interface, and send a DC power supply signal to N terminal units through its T second interfaces.

[0051] In a further possible implementation, the bias processing circuit also includes a seventh filter element, a first end of the seventh filter element corresponds to the power interface of the bias processing circuit, a second end of the seventh filter element is connected to the M first interfaces of the bias processing circuit and then connected to the T second interfaces of the bias processing circuit, and the seventh filter element can be used to filter AC signals in the input signal.

[0052] In a further possible implementation, the seventh filtering element is an inductor.

[0053] On the third aspect, the present application provides a signal bias unit, including M first interfaces, a second interface and T third interfaces, the M first interfaces are connected to the M radio frequency interfaces of the radio frequency unit, the second interface is connected to the perception interface of the radio frequency unit, and the T third interfaces are connected to N terminal units, the N terminal units include at least one radiation unit and at least one perception unit, N is an integer greater than or equal to 2, and / or include at least one radiation and perception fusion unit, N is a positive integer; M and T are positive integers. In the scenario of sending information, the signal bias unit is used to: receive radio frequency transmission signals from the radio frequency unit through the M first interfaces, receive perception request signals from the radio frequency unit through the second interface, and send radio frequency transmission signals and / or perception request signals to the N terminal units through the T third interfaces. In the scenario of receiving information, the signal bias unit is used to: receive RF receiving signals from the radiating units in N terminal units, perception acquisition signals from the perception units in N terminal units, and RF receiving signals and / or perception acquisition signals from the fusion units in N terminal units through T third interfaces, send RF receiving signals to the RF unit through M first interfaces, and send perception acquisition signals to the RF unit through the second interface.

[0054] In a possible design of the third aspect, the T second interfaces are connected to the T radio frequency cables in a one-to-one correspondence, and each radio frequency cable is provided with one or more terminal units.

[0055] In a possible design of the third aspect, the signal bias unit may also include a power supply interface, which is connected to a power supply. The signal bias unit is also used to: receive a DC power supply signal from the power supply through the power supply interface, and send a DC power supply signal to N terminal units through T third interfaces.

[0056] In a possible design of the third aspect, the RF transmission signal and RF reception signal received by the signal bias unit are high-frequency AC signals, and the perception request signal and perception acquisition signal received by the signal bias unit are low-frequency AC signals. In this case, the signal bias unit may also include a first bias circuit, which includes M first filter elements, a second filter element, and a third filter element. The first ends of the M first filter elements are connected to the M first interfaces of the signal bias unit in a one-to-one correspondence, the first end of the second filter element is used to connect to the second interface of the signal bias unit, the first end of the third filter element is connected to the power interface of the signal bias unit, and the second ends of the M first filter elements, the second end of the second filter element, and the second end of the third filter element are connected and then connected to the T third interfaces of the signal bias unit. The first filter element can be used to filter the DC signal and low-frequency AC signal in the input signal, the second filter element can be used to filter the DC signal and high-frequency AC signal in the input signal, and the third filter element can be used to filter the AC signal in the input signal.

[0057] In a further possible design, the first filter element and the second filter element are capacitors, and the third filter element is an inductor.

[0058] In a possible design of the third aspect, the perception request signal from the radio frequency unit is a differential signal, and the perception acquisition signal from the terminal unit is a low-frequency AC signal. In this case, the signal bias unit may include a first conversion circuit, the first interface of the first conversion circuit corresponds to the second interface of the signal bias unit, and the second interface of the first conversion circuit is used to connect T third interfaces of the signal bias unit. In the scenario of sending information, the first conversion circuit can receive the perception request signal from the radio frequency unit through its first interface, convert the perception request signal into a low-frequency AC signal, and then send the converted perception request signal through its second interface. In the scenario of receiving information, the first conversion circuit can receive the perception acquisition signal from the terminal unit through its second interface, convert the perception acquisition signal into a differential signal, and then send the converted perception acquisition signal through its first interface.

[0059] In a fourth aspect, the present application provides a terminal unit comprising a radiating unit, a sensing unit, and a second bias circuit, wherein the first interface of the second bias circuit is connected to the signal processing unit, the second interface of the second bias circuit is connected to the radiating unit, and the third interface of the second bias circuit is connected to the sensing unit. In the scenario of sending information, the second bias circuit can receive a radio frequency transmission signal and / or a sensing request signal from the signal processing unit through its first interface, send a radio frequency transmission signal to the radiating unit through its second interface, and send a sensing request signal to the sensing unit through its third interface; the radiating unit can convert the radio frequency transmission signal from the second bias circuit into an electromagnetic wave signal and send it out; the sensing unit can perform corresponding collection operations according to the instructions of the sensing request signal from the second bias circuit. In the scenario of receiving information, the radiating unit can convert the received electromagnetic wave signal into a radio frequency reception signal and send it to the second bias circuit; the sensing unit can send the sensing collection signal collected over a period of time to the second bias circuit; the second bias circuit can receive a radio frequency reception signal from the radiating unit through its second interface, receive a sensing collection signal from the sensing unit through its third interface, and send a radio frequency reception signal and / or a sensing collection signal to the signal processing unit through its first interface.

[0060] In a possible design of the fourth aspect, the second bias circuit may also include a fourth interface, which is connected to the power interface of the sensing unit. The second bias circuit is also used to: receive a DC power supply signal from the signal processing unit through its first interface, and send a DC power supply signal to the sensing unit through its fourth interface.

[0061] In one possible design of the fourth aspect, the second bias circuit may include a fourth filter element, a fifth filter element, and a sixth filter element. The first end of the fourth filter element, the first end of the fifth filter element, and the first end of the sixth filter element are connected and then connected to the first interface of the second bias circuit. The second end of the fourth filter element corresponds to the second interface of the second bias circuit, the second end of the fifth filter element corresponds to the third interface of the second bias circuit, and the second end of the sixth filter element corresponds to the fourth interface of the second bias circuit. The fourth filter element can be used to filter DC signals and low-frequency AC signals from the input signal, the fifth filter element can be used to filter DC signals and high-frequency AC signals from the input signal, and the sixth filter element can be used to filter AC signals from the input signal.

[0062] In a further possible design, the fourth filter element and the fifth filter element are capacitors, and the sixth filter element is an inductor.

[0063] The various designs in the above-mentioned first aspect are also applicable to the above-mentioned second to fourth aspects. For the corresponding beneficial effects, please refer to the technical effects that can be achieved by the corresponding designs in the above-mentioned first aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] FIG1 exemplarily shows a schematic diagram of a possible application scenario provided by the present application;

[0065] FIG2 exemplarily shows a schematic diagram of the architecture of a radiation and sensing fusion system provided by the present application;

[0066] FIG3 exemplarily shows a structural diagram of a radiation and sensing fusion system provided by the present application;

[0067] FIG4 exemplarily shows a structural diagram of a signal bias unit provided by the present application;

[0068] FIG5 exemplarily shows a schematic structural diagram of a first bias circuit provided by the present application;

[0069] FIG6 exemplarily shows a structural diagram of a first conversion circuit provided by the present application;

[0070] FIG7 exemplarily shows a schematic structural diagram of a radio frequency unit provided by the present application;

[0071] FIG8 exemplarily shows a schematic diagram of the specific structure of a radio frequency unit provided in an embodiment of the present application;

[0072] FIG9 exemplarily shows a structural diagram of a fusion unit provided in an embodiment of the present application;

[0073] FIG10 exemplarily shows a schematic structural diagram of a second bias circuit provided by the present application;

[0074] FIG11 exemplarily shows a specific structural diagram of a second bias circuit provided in the present application. DETAILED DESCRIPTION

[0075] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0076] The following is an explanation of some of the terms used in this application. It should be noted that these explanations are for the purpose of facilitating understanding by those skilled in the art and do not limit the scope of protection claimed in this application.

[0077] 1. Radiating unit.

[0078] Radiating elements, also known as antenna elements, are the core components of an antenna array, used to transmit and receive radio waves. Antenna arrays typically consist of multiple radiating elements arranged in a certain pattern. If the radiating elements are arranged in a straight line, it's called a linear antenna array. If the radiating elements are arranged on a plane, it's called a planar antenna array.

[0079] 2. Perception unit.

[0080] A sensing unit is a unit that has a data collection function. The collected data may include various physical quantities, identifiers, audio data, or video data. Some examples of sensing units include: sensors, such as infrared sensors, air pressure sensors, smoke sensors, humidity sensors, temperature sensors, and vibration sensors; multimedia information collection devices, such as optical drives, sound cards, video capture cards, microphones, electronic keyboards, scanners, recorders, digital cameras, and video cameras; QR code collection devices, such as scanners, QR code collectors, and point-of-sale (POS) terminals; and real-time positioning devices, such as Global Positioning System (GPS) transceivers, Beidou Satellite Navigation System transceivers, Global Navigation Satellite System transceivers, Galileo Satellite Navigation System transceivers, and Quasi-Zenith Satellite System transceivers.

[0081] 3. Fusion unit of radiation and perception.

[0082] The fusion unit of radiation and perception refers to a unit obtained by fusing at least one radiation unit and at least one perception unit. For example, it may refer to a unit obtained by fusing a radiation unit and a perception unit, or a unit obtained by fusing a radiation unit and multiple perception units, or a unit obtained by fusing multiple radiation units and a perception unit, or a unit obtained by fusing multiple radiation units and multiple perception units. There is no specific limitation.

[0083] The previous text introduced some of the terms involved in this application. The following text introduces the possible application scenarios of this application.

[0084] In one possible implementation, the fusion radiation and perception system can be deployed indoors. For example, see Figure 1, which illustrates a possible application scenario for this application. This application scenario uses the fusion radiation and perception system deployed on an indoor ceiling as an example. It is understood that the fusion radiation and perception system can also be deployed in other locations indoors, such as on a wall, floor, or ceiling in any or multiple directions of up, down, left, or right, to enhance indoor antenna signal quality and capture and transmit indoor perception signals.

[0085] It should be understood that the above application scenarios are merely examples, and the fusion system provided in this application can also be applied in other possible scenarios, not limited to the examples above. For example, the radiation and perception fusion system can also be deployed in outdoor environments as an integrated system for transmitting antenna signals and perception signals from access network equipment such as base stations or core networks. In another example, the radiation and perception fusion system can also be deployed in vehicles. By integrating in-vehicle antennas and sensors, the number of in-vehicle wiring can be reduced, leaving more functional space for the vehicle. In another example, the radiation and perception fusion system can also be applied in agricultural cultivation. By integrating temperature and humidity sensors and communication antennas in greenhouses, an integrated design for crop environmental monitoring and environmental information transmission can be achieved. In another example, the radiation and perception fusion system can also be applied in drones as an integrated system of airborne antenna systems and airborne sensor systems, achieving miniaturization and low-cost design of drones. In another example, the radiation and perception fusion system can also be integrated in air-raid shelters as a detection system for geological disaster perception and disaster warning. In another example, the radiation and perception fusion system can also be integrated in weather stations as an integrated system for air quality environmental monitoring and air quality broadcasting. It should be noted that the application scenarios described in this application are intended to more clearly illustrate the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application.

[0086] As described in the background technology, in an indoor environment where both an antenna system and a perception system (also called a sensor system) need to be deployed, the deployment of the antenna system and the perception system usually needs to be carried out in batches. In other words, the antenna system and the perception system each have their own separate signal transceiver links, which requires the introduction of a large amount of manpower and material costs, and does not conform to the low-cost design concept.

[0087] In view of the above problems, this application proposes a solution to integrate the deployment of the antenna system and the perception system. By reusing the feeding network in the antenna system, the deployment of the perception system can be completed simultaneously with the deployment of the antenna system, thereby reducing manpower and material costs.

[0088] Based on the above content, the solution proposed in this application is described in detail below with reference to the accompanying drawings.

[0089] Please refer to Figure 2, which is a schematic diagram of the architecture of a radiation and sensing fusion system provided in this application. The system architecture includes a signal processing unit 210 and N terminal units connected to the signal processing unit 210. The N terminal units may include at least one radiation unit and at least one sensing unit, and / or may include at least one radiation and sensing fusion unit. For example, the N terminal units may include only radiation units and sensing units, in which case N is a positive integer greater than or equal to 2. Alternatively, the N terminal units may include only radiation and sensing fusion units, in which case N is a positive integer. Alternatively, the N terminal units may include both radiation and sensing fusion units and at least one of radiation units and sensing units, in which case N is a positive integer greater than or equal to 2. It is understood that when the N terminal units include at least two radiation and sensing fusion units, any two radiation and sensing fusion units may include the same number of radiation units and the same number of sensing units, or may include different numbers of radiation units and / or different numbers of sensing units, without limitation.

[0090] To facilitate the introduction of the solution, the radiation and perception fusion unit will be referred to as the fusion unit below.

[0091] It is understandable that the specific number of radiation units, sensing units, and fusion units included in the N terminal units can be determined based on the number of radiation units and sensing units required to be deployed in the current environment. For example, if each fusion unit fuses one radiation unit and one sensing unit, and if 10 radiation units and 5 sensing units are required to be deployed in the current environment, then the N terminal units may include 10 radiation units and 5 sensing units, or 5 radiation units and 5 fusion units, or 7 radiation units, 3 fusion units, and 2 sensing units, and so on. These are not listed here one by one.

[0092] Continuing with FIG2 , in the information transmission scenario, the signal processing unit 210 may transmit a radio frequency transmission signal and / or a sensing request signal to N terminal units. For example, the radio frequency transmission signal and / or the sensing request signal may be transmitted to each of the N terminal units to instruct the corresponding terminal unit to receive and respond to the signal in a polling manner. Alternatively, the radio frequency transmission signal may be directly transmitted to the corresponding radiation unit or fusion unit in the N terminal units, and the sensing request signal may be directly transmitted to the corresponding sensing unit or fusion unit in the N terminal units to directly instruct the corresponding terminal unit to respond to the signal.

[0093] Optionally, after receiving the RF transmission signal, the radiating unit or fusion unit in the N terminal units may convert the RF transmission signal into a radio electromagnetic wave signal and then transmit it into the air. After receiving the sensing request signal, the sensing unit or fusion unit in the N terminal units may respond according to the instructions of the sensing request signal. For example, when the sensing unit is a sensor module, the sensor module may return the sensor signal collected within a certain time period according to the instructions of the sensing request signal, or adjust the sensor signal collection frequency according to the instructions of the sensing request signal, or adjust the period of the sensor module sending the sensor signal to the signal processing unit 210 according to the instructions of the sensing request signal, etc., which are not listed here one by one.

[0094] Conversely, in the scenario of receiving information, the signal processing unit 210 may receive radio frequency reception signals sent by the radiating units in the N terminal units, may receive sensing acquisition signals sent by the sensing units in the N terminal units, and may receive radio frequency reception signals and / or sensing acquisition signals sent by the fusion units in the N terminal units. The radio frequency reception signals may be, for example, electrical-to-optical conversions of radio electromagnetic wave signals propagating in the air received by the radiating units or the fusion units, and the sensing acquisition signals may be, for example, sensor signals collected over a period of time and returned by the sensing units or the fusion units, or signals indicating whether the acquisition frequency or period has been successfully adjusted.

[0095] By adopting the system architecture shown in Figure 2 and integrating the radiating unit and the sensing unit into a feed network, not only can the deployment of both the antenna system and the sensing system be completed at one time, saving labor costs, but the transceiver links in the same feed network can also be reused to complete information transmission between the antenna system and the sensing system, saving material costs. In this way, by designing a fusion system of the antenna system and the sensing system, a low-cost deployment solution for the antenna system and the sensing system can be achieved.

[0096] In a possible implementation, please continue to refer to FIG2 , N terminal units may be distributed on T radio frequency cables, and the signal processing unit 210 may include T second interfaces connected to the T radio frequency cables in a one-to-one correspondence, such as the second interface C1, the second interface C2, ..., the second interface C T, T is a positive integer. In the scenario of sending information, the signal processing unit 210 can send the RF transmission signal and / or perception request signal to the RF cable connected to the second interface through any second interface, and then transmit it to each terminal unit or the corresponding terminal unit set on the RF cable through the RF cable. In the scenario of receiving information, the RF reception signal and / or perception acquisition signal sent by any terminal unit can be transmitted to the second interface connected to the RF cable through the RF cable where it is located, and then transmitted to the signal processing unit 210 through the second interface. In this implementation, N terminal units are dispersedly set up through T RF cables, so that the communication between the signal processing unit 210 and the N terminal units can be evenly distributed on different RF cables, reducing the communication pressure of distributing the N terminal units on one RF cable.

[0097] It is understandable that the present application does not limit the type and number of terminal units distributed on each RF cable. For example, FIG2 takes the example of 6 terminal units distributed on each RF cable, and a fusion unit distributed on one of the RF cables, and a radiation unit and a sensing unit distributed on the other RF cable, but this is only an optional solution. In actual deployment, the same number of terminal units can be distributed on all RF cables, or different numbers of terminal units can be distributed on all RF cables, or the same number of terminal units can be distributed on some RF cables, and different numbers of terminal units can be distributed on another part of the RF cables. In addition, any RF cable can be set as all radiation units, or all sensing units, or all fusion units, or some can be set as radiation units and some as sensing units, or some can be set as radiation units and some can be set as fusion units, or some can be set as sensing units and some can be set as fusion units, or some can be set as radiation units, some can be set as sensing units, and some can be set as fusion units. There is no specific limitation.

[0098] In one possible implementation, please continue to refer to Figure 2. The fusion system may also include a baseband unit 220, which is connected to the signal processing unit 210, for example, by connecting to the first interface IN of the signal processing unit 210 via an optical fiber. In the scenario of sending a signal, the baseband unit 220 can send a radio frequency transmit signal to the first interface IN to send the radio frequency transmit signal to the signal processing unit 210. In the scenario of receiving a signal, after the signal processing unit 210 receives the radio frequency receive signal from the radiation unit or the fusion unit in the N terminal units, it can be sent to the baseband unit 220 through the first interface IN so that the baseband unit 220 can perform subsequent processing on the radio frequency receive signal. It can be seen that by setting the baseband unit to be connected to the signal processing unit, the signal processing unit can realize the communication connection between the baseband unit and the radiation unit or the fusion unit in the terminal unit to realize the transmission and reception of radio frequency signals.

[0099] As will be appreciated, since optical fibers transmit digital signals, while the end unit receives analog signals, the signal processing unit 210, upon receiving the RF transmit signal from the baseband unit 220, may first perform digital-to-analog conversion on the RF transmit signal before transmitting the converted RF transmit signal to the end unit. Alternatively, upon receiving the RF receive signal from the radiating unit or the fusion unit, the signal processing unit 210 may first perform analog-to-digital conversion on the RF receive signal before transmitting the converted RF receive signal to the baseband unit 220. This allows the baseband unit and the end unit to receive signals in formats that they can parse.

[0100] In a further possible implementation, please continue to refer to FIG. 2 . The fusion system may further include a network management device 230. The network management device 230 may be connected to the baseband unit 220 via any type of full-duplex communication bus. The full-duplex communication bus may be, for example, a universal asynchronous receiver / transmitter (UART) bus, an integrated circuit (IC) bus, or a serial bus. 2 C) bus or serial peripheral interface (SPI) bus, etc. In the scenario of sending signals, the network management device 230 can send a perception request signal to the baseband unit 220. After receiving the perception request signal, the baseband unit 220 can send the perception request signal to the first interface IN to send it to the signal processing unit 210. In the scenario of receiving signals, after the signal processing unit 210 receives the perception acquisition signal from the perception unit or fusion unit in the N terminal units, it can send it to the baseband unit 220 through the first interface IN, and then the baseband unit 220 forwards it to the network management device 230. In this way, by setting the network management device to be connected to the baseband unit, the communication connection between the network management device and the perception unit or fusion unit in the terminal unit can be realized through the baseband unit and the signal processing unit to realize the sending and receiving operations of the perception signal.

[0101] It can be understood that the fusion radiation and sensing system can be considered a new system resulting from integrating a sensing unit into an existing antenna system. In other words, the aforementioned T RF cables, baseband unit 220, and the optical fiber connecting baseband unit 220 and signal processing unit 210 can all be considered existing components of the existing antenna system's feed network. The network management device 230 can be considered a newly added component to the existing antenna system's feed network, and the signal processing unit 210 can be considered an improved RF unit on the existing antenna system's feed network, or a component that integrates the RF unit on the existing antenna system's feed network. Thus, by reusing the existing antenna system's feed network, only minor hardware and functional modifications are required to integrate the antenna and sensing functions, achieving the layout of a fusion system without requiring system redevelopment or re-layout from scratch. This further reduces labor costs and improves the applicability of the new system.

[0102] In one possible implementation, after the sensing unit is integrated into the feeding network of the existing antenna system, the number of terminal units in the feeding network increases, or the specifications of the fusion unit in which the sensing unit and the radiation unit are integrated become larger. Therefore, the original power supply capacity of the feeding network is likely to be unable to meet the needs of the terminal units in the integrated feeding network. In order to solve the power supply problem of the integrated feeding network, the present application also proposes an external power supply solution: Please continue to refer to Figure 2. The fusion system may also include a power supply 240, and the signal processing unit 210 may also include a power supply interface P. The power supply 240 is connected to the power supply interface P. After the system is powered on, the power supply 240 can output a DC power supply signal to the power supply interface P. After the signal processing unit 210 receives the DC power supply signal through the power supply interface P, it can transmit the DC power supply signal through T second interfaces C1~C T The power is transmitted to T RF cables to be evenly distributed to the terminal units on each RF cable. In this way, by setting an external power supply to power the integrated terminal units, it is possible to support the installation of more terminal units in the fusion system, and it is also possible to support the integration of the radiation unit and the sensing unit in a fusion unit in the fusion system. For example, through experimental tests, it was found that according to the original power supply capacity of the existing antenna system, one RF cable can only support the layout of 3 to 6 radiation units. After the external power supply is set, the power provided by the original power supply capacity and the external power supply can support the layout of 20 to 30 fusion units on one RF cable, which greatly increases the number of terminal units that can be arranged on each RF cable.

[0103] The above content introduces the functions of some functional components involved in FIG. 2 . The following describes the structure of each functional component shown in FIG. 2 to provide an exemplary specific implementation solution.

[0104] 1. Signal Processing Unit

[0105] In one possible implementation, the signal processing unit 210 has the functions of signal merging and signal transmission. For example, the signal processing unit 210 can receive the RF transmission signal from the baseband unit 220, the perception request signal from the network management device 230 forwarded by the baseband unit 220, and the DC power supply signal from the power supply 240, and can transmit these three signals to the terminal unit on each RF cable. In addition, the signal processing unit 210 can also receive the RF reception signal sent from the radiating unit on each RF cable, the perception collection signal sent from the perception unit on each RF cable, and the RF reception signal and perception collection signal sent from the fusion unit on each RF cable, and can transmit these two signals to the baseband unit 220. There are various possible structures of the signal processing unit that can implement this function. The following exemplifies two possible signal processing unit structures.

[0106] In implementation scheme 1, the signal processing unit includes a radio frequency unit and a signal bias unit.

[0107] As a possible implementation method, the signal processing unit 210 may include a radio frequency unit and a signal bias unit. The structure of the radio frequency unit is the same as that of the radio frequency unit on the feeding network of the existing antenna system, and is used to realize the radio frequency transceiver function and the sensing transceiver function, while the signal bias unit is a new unit added to the feeding network of the existing antenna system, and is used to realize the DC power supply function and the signal merging function.

[0108] Please refer to Figure 3, which illustrates a specific structural diagram of a radiation and perception fusion system provided by the present application. In this example, the signal processing unit 210 includes a radio frequency unit 211 and a signal bias unit 212, and the signal bias unit 212 is connected to the radio frequency unit 211 and N terminal units, respectively. In the scenario of sending signals, the radio frequency unit 211 can send radio frequency transmission signals and / or perception request signals to the signal bias unit 212, and the signal bias unit 212 sends the radio frequency transmission signals and / or perception request signals to the N terminal units. In the scenario of receiving signals, the signal bias unit 212 can receive radio frequency reception signals and / or perception acquisition signals from N terminal units, and can send radio frequency reception signals and / or perception acquisition signals to the radio frequency unit 211.

[0109] Optionally, referring to FIG3 , the RF unit 211 may be further connected to the baseband unit 220, and the signal bias unit 212 may be further connected to N terminal units via T RF cables. In the signal transmission scenario, the RF unit 211 may receive a RF transmission signal from the baseband unit 220 and / or a perception request signal from the network management device 230 forwarded by the baseband unit 220, and may send the RF transmission signal and / or the perception request signal to the signal bias unit 212. The signal bias unit 212 may send the RF transmission signal and / or the perception request signal to the T RF cables for transmission to the N terminal units via the T RF cables. In the scenario of receiving signals, the signal bias unit 212 can receive RF receiving signals sent by the radiation units in the N terminal units, perception acquisition signals sent by the perception units in the N terminal units, and RF receiving signals and / or perception acquisition signals sent by the fusion units in the N terminal units, and can send the RF receiving signals and / or perception acquisition signals to the RF unit 211. The RF unit 211 can forward the RF receiving signals and / or perception acquisition signals to the baseband unit 220, and the perception acquisition signals can also be forwarded by the baseband unit 220 to the network management device 230.

[0110] Optionally, referring to FIG. 2 and FIG. 3 , the RF unit 211 may include a first interface IX, which may be the interface IN of the signal processing unit 210, or may be connected to the interface IN of the signal processing unit 210 via a line. The RF unit 211 may implement signal transmission and reception operations with the baseband unit 220 via the first interface IX. For example, in a signal transmission scenario, the RF unit 211 may receive a RF transmission signal from the baseband unit 220 and / or a sensing request signal from the network management device 230 forwarded by the baseband unit 220 via the first interface IN. In a signal reception scenario, the RF unit 211 may forward a RF reception signal and / or a sensing acquisition signal from the signal bias unit 212 to the baseband unit 220 via the first interface IN.

[0111] Optionally, referring to FIG3 , the radio frequency unit 211 may include M radio frequency interfaces, such as the radio frequency interface RF1, the radio frequency interface RF2, ..., the radio frequency interface RF M The signal bias unit 212 may include M radio frequency interfaces RF1 to RF M The M first interfaces connected in a one-to-one correspondence, such as the first interface A1, the first interface A2, ..., the first interface A M The radio frequency unit 211 and the signal bias unit 212 can be connected to the radio frequency interface RF1 through M radio frequency interfaces RF1 to RF M and M first interfaces A1 to A MTo realize the operation of receiving and sending radio frequency signals, for example, in the scenario of sending signals, the radio frequency unit 211 can transmit signals through the M radio frequency interfaces RF1 to RF M The radio frequency transmission signal from the baseband unit 220 is sent to the M first interfaces A1 to A2 of the signal bias unit 212. M To transmit to the signal bias unit 212, in the scenario of receiving the signal, the signal bias unit 212 can pass the M first interfaces A1~A M The RF receiving signals from the radiation units and fusion units in the N terminal units are sent to the M RF interfaces RF1 to RF2 of the RF unit 211. M to transmit to the RF unit 211.

[0112] Optionally, please refer to Figures 2 and 3 together. The RF unit 211 may further include a perception interface (AISG), and the signal bias unit 212 may further include a second interface B, and the second interface B is connected to the perception interface AISG. The RF unit 211 and the signal bias unit 212 can implement the transmission and reception operations of the perception signal through the perception interface AISG and the second interface B. For example, in the scenario of sending a signal, the RF unit 211 can send the perception request signal from the baseband unit 220 to the second interface B of the signal bias unit 212 through the perception interface AISG for transmission to the signal bias unit 212. In the scenario of receiving a signal, the signal bias unit 212 can send the perception collection signals from the perception units and fusion units in the N terminal units to the perception interface AISG of the RF unit 211 through the second interface B for transmission to the RF unit 211.

[0113] Optionally, please refer to FIG. 2 and FIG. 3 , the signal bias unit 212 may further include T third interfaces, such as the third interface D1, the third interface D2, the third interface D3, ..., the third interface D T , T third interfaces D1~D T It can be T second interfaces C1-C of the signal processing unit 210. T Alternatively, the T second interfaces C1 to C2 of the signal processing unit 210 may be connected one by one through lines. T The signal bias unit 212 can be connected to the T third interfaces D1 to D T To realize the receiving and sending operation of radio frequency signal and sensing signal, for example, in the scenario of sending signal, the signal bias unit 212 can transmit the signal through T third interfaces D1 to D T The RF transmission signal and / or sensing request signal from the baseband unit 220 is sent to T RF cables for transmission to N terminal units. In the scenario of receiving the signal, the signal bias unit 212 can transmit the signal to the terminal unit through T third interfaces D1 to D TReceives RF reception signals and sensing acquisition signals from N terminal units and forwards them to the RF unit 211.

[0114] Optionally, referring to Figures 2 and 3 , the RF unit 211 may further include a power interface P1, which may be connected to the power interface P of the signal processing unit 210 via a line to achieve connection with the power supply 240. The RF unit 211 may receive a DC power signal output by the power supply 240 via the power interface P1, and may use the DC power signal to drive an electrical tilt device located on a certain RF cable to enable the electrical tilt device to adjust the angle of a radiating element located on the RF cable so that the radiating element transmits and receives signals at a preferred angle. In some embodiments, considering that the AISG interface of the RF unit in an existing antenna system is used to transmit and receive electrical tilt signals, the power interface P1 may also be connected to the AISG interface of the RF unit 211 to facilitate the transmission of the DC power signal provided by the power supply 240 to the electrical tilt device via the AISG interface, along with the electrical tilt signal.

[0115] Optionally, referring to Figures 2 and 3 , the signal bias unit 212 may further include a power interface P2, which can be connected to the power interface P of the signal processing unit 210 via a line to achieve connection with the power supply 240. The signal bias unit 212 can receive the DC power signal output by the power supply 240 via the power interface P2 and provide this DC power signal to N end units. For example, this DC power signal can be sent to T RF cables for transmission to the N end units on the T RF cables. In this way, although the RF unit 211 in the original antenna system can only provide limited power to drive the electrical tilt device connected to a particular RF cable and cannot simultaneously support multiple end units connected to the RF cable, by introducing the DC power signal provided by the power supply 240 into the signal bias unit 212, the signal bias unit 212 can provide sufficient DC power to all RF cables to drive all end units connected to the RF cable, thereby ensuring that the additional sensing units integrated on each RF cable also have sufficient DC power to operate.

[0116] The above content describes the interface connection relationship between the RF unit 211 and the signal bias unit 212. The internal circuit structure of the signal bias unit 212 is described below. It should be noted that since the internal circuit structure of the RF unit 211 is the same as that of the RF unit in the existing antenna system, the internal circuit structure of the RF unit 211 can be directly referred to in the existing technology and will not be further described in this application.

[0117] It is understood that the internal circuitry of the signal bias unit 212 needs to be configured based on the types of signals that can be parsed by the baseband unit 220 and the end unit interacting with the signal bias unit 212. For example, in some scenarios, the RF signals (e.g., RF transmit signals and RF receive signals) exchanged between the signal bias unit 212, the baseband unit 220, and the end unit are all high-frequency AC signals; the sensing signals (e.g., sensing request signals and sensing acquisition signals) exchanged between the signal bias unit 212 and the baseband unit 220 are all differential signals; the sensing signals (e.g., sensing request signals and sensing acquisition signals) exchanged between the signal bias unit 212 and the end unit are all low-frequency AC signals; and the signals (e.g., DC power supply signals) exchanged between the signal bias unit 212 and the power supply 240 are all DC signals. Therefore, based on the types of signals interacting in this scenario, the signal bias unit 212 needs to filter the signals transmitted from the baseband unit 220, the end unit, or the power supply 240 so that the signals emitted by the signal bias unit 212 can be successfully parsed by the end unit or baseband unit 220.

[0118] Please refer to Figure 4, which exemplifies a structural diagram of a signal bias unit provided in the present application. In this example, the signal bias unit 212 may include a first bias circuit 2121, and the first bias circuit 2121 includes a second filter element 21212, a third filter element 21213 and at least one first filter element, such as the M first filter elements shown in the figure: the first filter element 212111, the first filter element 212112, the first filter element 212113, ..., the first filter element 21211M. Among them, the first ends of the M first filter elements 212111~21211M are used to receive RF transmit signals and send RF receive signals, for example, by connecting the M first interfaces A1~A111 of the signal bias unit 212 in a one-to-one correspondence. M , the receiving baseband unit 220 sends to M first interfaces A1~A M The radio frequency transmission signal on the M first interfaces A1 to A MThe RF receiving signal is sent to the baseband unit 220. The first end of the second filtering element 21212 is used to receive a sensing request signal and send a sensing acquisition signal. For example, it can be connected to the second interface B of the signal bias unit 212 to receive the sensing request signal sent by the baseband unit 220 to the second interface B, and send the sensing acquisition signal to the baseband unit 220 through the second interface B. The first end of the third filtering element 21213 is used to receive a DC power supply signal. For example, it can be connected to the power interface P2 of the signal bias unit 212 to receive the DC power supply signal sent by the power supply 240 to the power interface P2. The second ends of the M first filtering elements 212111~21211M, the second end of the second filtering element 21212 and the second end of the third filtering element 21213 are connected and then connected to N terminal units. For example, the second ends of the filtering elements are connected and divided into T branches, which are connected to the T interfaces D1~D2 of the signal bias unit 212 in a one-to-one correspondence through the T branches. T , to achieve connection with N end units on T RF cables.

[0119] In the first bias circuit 2121, the M first filter elements 212111 to 21211M can be used to filter DC signals and low-frequency AC signals from the input signal, the second filter element 21212 can be used to filter DC signals and high-frequency AC signals from the input signal, and the third filter element 21213 can be used to filter AC signals from the input signal, so that the signal transmitted through the first bias circuit 2121 is relatively pure. For example:

[0120] In the signal transmission scenario, the RF transmission signal is a high-frequency AC signal, and the M first filter elements 212111 to 21211M receive the M first interfaces A1 to A2 sent by the RF unit 211 to the signal bias unit 212. MAfter receiving the RF transmission signal on the second interface B sent by the RF unit 211, even if the RF transmission signal is not pure, the DC signal and the low-frequency AC signal in the impure signal can be filtered out by the M first filtering elements 212111~21211M, so that the relatively pure RF transmission signal is transmitted to the N terminal units through the M first filtering elements 212111~21211M. In addition, in the scenario of sending signals, the perception request signal is a low-frequency signal. After the second filtering element 21212 receives the perception request signal on the second interface B sent by the RF unit 211 to the signal bias unit 212, even if the perception request signal is not pure, the DC signal and the high-frequency AC signal in the impure signal can be filtered out by the second filtering element 21212, so that the relatively pure perception request signal is transmitted to the N terminal units through the second filtering element 21212. Furthermore, in the signal transmission scenario, the DC power supply signal is a DC signal. After the third filtering element 21213 receives the DC power supply signal sent by the power supply 240 to the power interface P2 of the signal bias unit 212, even if the DC power supply signal is impure, the third filtering element 21213 can filter the AC signal in the impure signal, so that a relatively pure DC power supply signal is transmitted to the N terminal units through the third filtering element 21213.

[0121] In the signal receiving scenario, the RF receiving signal is a high frequency AC signal, and the M first filter elements 212111~21211M receive the third interfaces D1~D1 from the radiation units or fusion units in the N terminal units and send them to the signal bias unit 212. T After receiving the RF received signal, even if the RF received signal is not pure, the DC signal and the low-frequency AC signal in the impure signal can be filtered through the M first filtering elements 212111~21211M, so that the relatively pure RF received signal is transmitted to the RF unit 211 through the M first filtering elements 212111~21211M. In addition, in the scenario of receiving the signal, the sensing acquisition signal is a low-frequency AC signal, and the second filtering element 21212 receives the third interface D1~D1 sent from the sensing unit or fusion unit in the N terminal units to the signal bias unit 212. T After the perception acquisition signal is received, even if the perception acquisition signal is not pure, the DC signal and the high-frequency AC signal in the impure signal can be filtered out by the second filtering element 21212, so that the relatively pure perception acquisition signal is transmitted to the RF unit 211 through the first filtering element 21211.

[0122] It can be understood that the first filter element 212111~21211M can be any filter device or a combination of any multiple filter devices that can allow high-frequency AC signals to pass through and prevent other signals except high-frequency AC signals from passing through, the second filter element 21212 can be any filter device or a combination of any multiple filter devices that can allow low-frequency AC signals to pass through and prevent other signals except low-frequency AC signals from passing through, and the third filter element 21213 can be any filter device or a combination of any multiple filter devices that can allow DC signals to pass through and prevent AC signals from passing through. Optionally, please refer to Figure 5, which exemplifies a specific structural schematic diagram of a first bias circuit provided in the present application. The figure takes M first filtering elements 212111~21211M and the second filtering element 21212 as capacitors and the third filtering element 21213 as an inductor as an example. With such a configuration, the characteristic of capacitors of "passing AC and blocking DC" can be utilized. By setting the capacitor bandpass frequency of the M first filtering elements 212111~21211M to high frequency, relatively pure high-frequency AC RF transmission signals and RF receiving signals are filtered out. By setting the capacitor bandpass frequency of the second filtering element 21212 to low frequency, relatively pure low-frequency AC perception request signals and perception acquisition signals are filtered out. In addition, the characteristic of inductors of "passing DC and blocking AC" can be utilized to filter out relatively pure DC power supply signals.

[0123] Optionally, the signals that the network management device 230 can transmit and receive are typically differential signals, such as 485 differential signals, while the signals that the sensing unit can transmit and receive are typically low-frequency AC signals, such as OOK signals. In this case, the signal bias unit 212, as a transit node between the network management device 230 and the sensing unit, is required to convert the signal types of the signals transmitted and received by the network management device 230 and the signals transmitted and received by the sensing unit so that the two can successfully communicate. Optionally, please continue to refer to Figure 4. The signal bias unit 212 may also include a first conversion circuit 2122, wherein the first interface of the first conversion circuit 2122 is connected to the second interface B of the signal bias unit 212, and the second interface of the first conversion circuit 2122 is connected to the first end of the second filter element 21212. In the signal transmission scenario, the first conversion circuit 2122 can receive a sensing request signal in the form of a differential signal forwarded by the RF unit 211 to the second interface B of the signal bias unit 212, and can convert the sensing request signal in the form of a differential signal into a sensing request signal in the form of a low-frequency AC signal, which is then sent to the second filtering element 21212. The DC signal and high-frequency AC signal are filtered by the second filtering element 21212 before being sent to the N terminal units. In the signal reception scenario, the sensing acquisition signal sent by the sensing unit or fusion unit in the N terminal units is first filtered by the second filtering element 21212 to become a relatively pure sensing acquisition signal in the form of a low-frequency AC signal. The signal is then sent to the first conversion circuit 2122. The first conversion circuit 2122 converts the sensing acquisition signal in the form of a low-frequency AC signal into a sensing acquisition signal in the form of a differential signal, which is then sent to the RF unit 211 via the second interface B of the signal bias unit 212. In this way, the first conversion circuit converts the type of signal sent by the network management device into the type of signal received by the perception unit, and the type of signal sent by the perception unit into the type of signal received by the network management device, thereby enabling smooth communication between the network management device and the perception unit.

[0124] It is understandable that the first conversion circuit 2122 can be any device or combination of devices that can realize mutual conversion between differential signals and low-frequency AC signals. For example, please refer to Figure 6, which exemplifies a specific structural diagram of a first conversion circuit provided by the present application, and takes the first conversion circuit 2122 converting 485 signals and OOK signals as an example. Optionally, the first conversion circuit 2122 may include a drive circuit 21221, a transceiver selection circuit 21222, a receive detection and demodulation circuit 21223, a transmit modulation circuit 21224, and a low-pass filter circuit 21225. Among them, interface 1 and interface 2 of the driving circuit 21221 are both connected to the second interface B of the signal bias unit 212, interface 3 of the driving circuit 21221 is connected to interface 3 of the receiving detection and demodulation circuit 21223, interface 4 of the driving circuit 21221 is connected to interface 3 of the transmitting modulation circuit 21224, interface 1 of the receiving detection and demodulation circuit 21223 and interface 1 of the transmitting modulation circuit 21224 are connected and then connected to interface 1 of the low-pass filtering circuit 21225, interface 2 of the receiving detection and demodulation circuit 21223 is connected to interface 1 of the transmitting and receiving selection circuit 21222, interface 2 of the transmitting and receiving selection circuit 21222 is connected to interface 2 of the transmitting modulation circuit 21224, and interface 2 of the low-pass filtering circuit 21225 is connected to interface 1 of the second filtering element 21212.

[0125] Referring to Figures 3 and 6 , in the signal transmission scenario, the driver circuit 21221 can receive, via its interfaces 1 and 2, a differential sensing request signal, such as the 485_A signal and the 485_B signal, sent by the RF unit 211 to the second interface B of the signal bias unit 212. The driver circuit 21221 can convert the differential sensing request signal into an OOK sensing request signal and send it to the transmit modulation circuit 21224 via its interface 4. The transmit modulation circuit 21224 can modulate the OOK sensing request signal from the driver circuit 21221 and send a notification message to the transceiver selection circuit 21222 via its interface 2, informing the transceiver selection circuit 21222 that the current transmission scenario is in effect. Based on the notification message regarding the transmission scenario, the transceiver selection circuit 21222 can choose to disconnect the receive link, for example, by disconnecting line ① between the low-pass filter circuit 21225 and the receive detection and demodulation circuit 21223. Transmitting modulation circuit 21224 can also transmit a modulated sensing request signal via its interface 1. Since line ② between low-pass filtering circuit 21225 and transmitting modulation circuit 21224 is not disconnected, the modulated sensing request signal can be transmitted to low-pass filtering circuit 21225. Low-pass filtering circuit 21225 filters the input signal of transmitting modulation circuit 21224, allowing low-frequency AC signals to pass through while blocking high-frequency AC and DC signals. This allows the relatively pure low-frequency AC sensing request signal to be transmitted to second filtering element 21212. Second filtering element 21212 then further filters the high-frequency AC and DC signals, resulting in a very pure sensing request signal. This signal, along with the pure RF transmission signals from M first filtering elements 212111-21211M and the pure DC power supply signal from third filtering element 21213, is transmitted to N terminal units.

[0126] Referring to Figures 3 and 6 , in the signal reception scenario, low-pass filter circuit 21225 receives the sensing acquisition signal from second filter element 21212 after initial filtering, and performs secondary filtering on the sensing acquisition signal, further filtering out high-frequency AC and DC signals, resulting in a very pure low-frequency AC sensing acquisition signal. This signal is then transmitted to receive detection and demodulation circuit 21223 via line ① between low-pass filter circuit 21225 and receive detection and demodulation circuit 21223. Receive detection and demodulation circuit 21223 demodulates the sensing acquisition signal from low-pass filter circuit 21225 and sends a notification message to transmit / receive selection circuit 21222 via its interface 2, informing transmit / receive selection circuit 21222 that the current receive scenario is in progress. Transmit / receive selection circuit 21222 can choose to disconnect the transmit link based on the notification message regarding the receive scenario, for example, by disconnecting line ③ between transmit modulation circuit 21224 and driver circuit 21221. The receiving detection and demodulation circuit 21223 can also send the demodulated sensing and acquisition signal through its interface 3. Since line ④ between the receiving detection and demodulation circuit 21223 and the driving circuit 21221 is not disconnected, the demodulated sensing and acquisition signal can be transmitted to the driving circuit 21221. The driving circuit 21221 can convert the demodulated sensing and acquisition signal into a differential signal and send it to the second interface B of the signal bias unit 212 through its interface 1 and its interface 2. The signal is then forwarded to the sensing interface AISG of the RF unit 211 through the signal bias unit 212, and then sent to the baseband unit 220 through the sensing interface AISG of the RF unit 211.

[0127] It should be noted that FIG6 is only an example of a possible structure of the first conversion circuit 2122. In practice, the first conversion circuit 2122 may include more or fewer components than those shown. For example, in some embodiments, the first conversion circuit 2122 may not include the low-pass filter circuit 21225. In this case, although the first conversion circuit 2122 does not perform low-pass filtering on the sensing request signal or the sensing acquisition signal, the low-pass filtering performed by the second filter element 21212 can ensure that the terminal unit receives a relatively pure low-frequency AC sensing request signal and that the radio frequency unit 211 receives a relatively pure differential signal sensing acquisition signal. For example, in other embodiments, the first conversion circuit 2122 may also include an anti-interference element, which can isolate different devices, prevent the signal transmitted by a certain device from being affected by other devices, and improve the quality of signal transmission. There are many possible implementation forms, which are not listed one by one in this application.

[0128] Optionally, referring to FIG6 , the signal bias unit 212 may further include one or more protection circuits. The figure illustrates an example of a circuit including multiple protection circuits, each of which is arranged at different locations within the signal bias unit 212. The protection circuit may be composed of resistors, inductors, capacitors, or other load-type components, and may be used to protect against abnormal circuit conditions, thereby safeguarding the safety of electronic components within the circuit. For example, in some scenarios, the protection circuit may be composed of capacitors to shunt the transient high current generated at the moment of circuit startup, preventing sensitive electronic components within the circuit from being broken down or damaged by the transient high current, thereby protecting the sensitive electronic components. For another example, in other scenarios, the protection circuit may be composed of control elements to promptly disconnect the circuit switch in the event of a short circuit, thereby quickly isolating the electronic components and preventing damage from the overcurrent generated by the short circuit. For another example, in yet other scenarios, the protection circuit may be composed of resistors to provide overvoltage protection. It should be understood that there are many possible structures and functions for the protection circuit, which are not listed here.

[0129] In the above-mentioned implementation scheme 1, the signal processing unit includes a radio frequency unit and a signal bias unit. The structure of the radio frequency unit remains the same as that of the radio frequency unit on the existing antenna system, while the signal bias unit is a new component that is developed and added to the existing antenna system. In other words, this scheme can directly utilize the existing radio frequency unit in the existing antenna system. By introducing only one adaptation network, namely the signal bias unit, there is no need to make major changes to the radio frequency unit and feeding network in the existing antenna system, thereby maximizing the reuse of old equipment. It is understandable that no matter what the scenario is, as long as the antenna system has been deployed, the newly developed signal bias unit can be added to the antenna system to achieve the effect of integrating the sensing function into the antenna system. This fusion method is relatively simple and only requires some minor changes to the existing antenna system without changing the structure of the radio frequency unit in the existing antenna system, which helps to reduce R&D costs, labor costs and material costs.

[0130] In implementation scheme 2, the signal processing unit is a radio frequency unit.

[0131] As another possible implementation method, the signal processing unit 210 may be a radio frequency unit. Compared with the radio frequency unit in the existing antenna system, the radio frequency unit has some improvements, so that the radio frequency unit has both the radio frequency transceiver function of the radio frequency unit in the existing antenna system and the sensing transceiver function, DC power supply function and signal merging function.

[0132] Please refer to Figure 7, which shows a schematic diagram of the structure of a radio frequency unit provided by the present application. In this example, the radio frequency unit includes a radio frequency processing circuit 213 and a bias processing circuit 214. The radio frequency processing circuit 213 includes a first interface I1 and M second interfaces RF1 to RFM The bias processing circuit 214 includes M first interfaces A1 to A M and T second interfaces H1 to H T , the M second interfaces RF1 to RF M The M first interfaces A1 to A1 of the bias processing circuit 214 are connected in a one-to-one correspondence. M The first interface I1 of the RF processing circuit 213 corresponds to the first interface IX of the RF unit. For example, the first interface I1 of the RF processing circuit 213 is the first interface IX of the RF unit, or the first interface I1 of the RF processing circuit 213 is connected to the first interface IX of the RF unit through a line. T Corresponding to the T second interfaces C1 to C of the radio frequency unit T For example, the T second interfaces H1 to H T That is, the T second interfaces C1 to C T , or the T second interfaces H1 to H2 of the bias processing circuit 214 T The T second interfaces C1 to C2 of the radio frequency unit are connected one by one through lines. T .

[0133] In the signal transmission scenario, the RF processing circuit 213 can receive the RF transmission signal from the baseband unit 220 and / or the perception request signal from the network management device 230 forwarded by the baseband unit 220, and can perform digital-to-analog conversion on the RF transmission signal and / or the perception request signal, and then transmit the received signal to the network management device 230 through the M second interfaces RF1~RF M The RF transmission signal and the sensing request signal after digital-to-analog conversion are sent to the M first interfaces A1 to A2 of the bias processing circuit 214. M The bias processing circuit 214 can be connected to the T second interfaces H1 to H T The RF transmission signal and the sensing request signal after the digital-analog conversion are sent to T RF cables to be transmitted to N terminal units through T RF cables. In the scenario of receiving the signal, the bias processing circuit 214 can receive the signal through the T second interfaces H1 to H T Receive the radio frequency receiving signal sent by the radiation unit in the N terminal units, the sensing acquisition signal sent by the sensing unit in the N terminal units, and the radio frequency receiving signal and / or the sensing acquisition signal sent by the fusion unit in the N terminal units, and transmit the radio frequency receiving signal and / or the sensing acquisition signal through the M first interfaces A1 to A M The RF receiving signal and / or the sensing acquisition signal are sent to the M second interfaces RF1 to RF2 of the RF processing circuit 213. MIn the embodiment, the RF processing circuit 213 may forward the RF receiving signal and / or the sensing and collecting signal to the baseband unit 220 via the first interface I1, wherein the sensing and collecting signal may also be forwarded by the baseband unit 220 to the network management device 230.

[0134] Optionally, please continue to refer to Figure 7. The bias processing circuit 214 may also include a power interface P2, which corresponds to the power interface P of the signal processing unit 210. For example, the power interface P2 is the power interface P of the signal processing unit 210, or the power interface P2 is connected to the power interface P of the signal processing unit 210 via a line. In the signal transmission scenario, in addition to receiving the RF transmission signal and / or the perception request signal from the RF processing circuit 213, the bias processing circuit 214 can also receive the DC power supply signal from the power supply 240, and can send a mixed signal containing one or more of the RF transmission signal, the perception request signal, and the DC power supply signal to the N terminal units. It can be seen that by configuring the power interface on the bias processing circuit, the bias processing circuit can also transmit the power provided by the external power supply to the terminal unit, thereby realizing the power supply of the fused terminal unit.

[0135] Please refer to Figure 3 and Figure 7 together. Compared with the RF unit on the existing antenna system (such as the RF unit 211 shown in Figure 3), the RF unit in the implementation scheme 2 has mainly made three changes. These three changes are described in detail below.

[0136] Change point 1

[0137] Please refer to the radio frequency unit 211 shown in FIG3. The radio frequency unit 211 in the conventional antenna system includes radio frequency interfaces RF1 to RF M It also includes the perception interface AISG, and the radio frequency signal is transmitted from the radio frequency interface RF1 to RF M The perception signal is transmitted on the perception interface AISG, and each interface transmits a single signal.

[0138] As a change, please refer to the RF processing circuit 213 shown in FIG7 . Unlike the RF unit 211 in the existing antenna system, the second implementation eliminates the external AISG interface on the original RF unit, or in other words, the AISG interface on the original RF unit is not used in the fusion solution. In other words, in the second implementation, both RF signals and sensing signals can be transmitted from the RF interfaces RF1 to RF2 of the RF processing circuit 213. M Transmission is carried out on the radio frequency interface RF1~RF M What is transmitted is a mixed signal, which may include high-frequency AC RF signals, such as RF transmission signals and RF reception signals, and low-frequency AC perception signals, such as perception request signals and perception acquisition signals.

[0139] It is understandable that the signals that the network management device 230 can transmit and receive are usually two-end signals (such as differential signals), and the radio frequency interfaces RF1 to RF M The signals that can be sent and received are usually single-ended signals (such as AC signals). In this case, the radio frequency processing circuit 213 acts as a network management device 230 and the radio frequency interfaces RF1 to RF M The transfer node between the network management device 230 and the radio frequency interface RF1 to RF M The signal types of the sent and received signals are converted so that the two can communicate successfully.

[0140] As an example, please refer to Figure 8, which shows a specific structural diagram of a radio frequency unit provided by the present application. In this example, the radio frequency processing circuit 213 may include a signal separation / coupling circuit 2131, a second conversion circuit 2132 and a signal coupling / separation circuit 2133. The first interface of the signal separation / coupling circuit 2131 corresponds to the first interface I1 of the radio frequency processing circuit 213 (for example, the first interface of the signal separation / coupling circuit 2131 is the first interface I1 of the radio frequency processing circuit 213, or the first interface of the signal separation / coupling circuit 2131 is connected to the first interface I1 of the radio frequency processing circuit 213 through a line), the second interface of the signal separation / coupling circuit 2131 is connected to the second interface of the signal coupling / separation circuit 2133, the third interface of the signal separation / coupling circuit 2131 is connected to the first interface of the second conversion circuit 2132, the second interface of the second conversion circuit 2132 is connected to the third interface of the signal coupling / separation circuit 2133, and the first interface of the signal coupling / separation circuit 2133 is connected to the M second interfaces RF1~RF of the radio frequency processing circuit 213. M .

[0141] In the signal transmission scenario, the signal separation / coupling circuit 2131 can receive the RF transmission signal in the form of a high-frequency AC signal and the perception request signal in the form of a differential signal from the baseband unit 220 through its first interface, and can send the RF transmission signal in the form of a high-frequency AC signal to the signal coupling / separation circuit 2133 through its second interface, and send the perception request signal in the form of a differential signal to the second conversion circuit 2132 through its third interface. The second conversion circuit 2132 can convert the differential perception request signal into a low-frequency AC perception request signal, and can send it to the signal coupling / separation circuit 2133. The signal coupling / separation circuit 2133 can couple the RF transmission signal in the form of a high-frequency AC signal output by the signal separation / coupling circuit 2131 and the perception request signal in the form of a low-frequency AC signal output by the second conversion circuit 2132 into an AC mixed signal, and can transmit the mixed signal to the RF processing circuit 213 through the M RF terminals RF1 to RF MThe AC mixed signal is sent to the bias processing circuit 214 .

[0142] Conversely, in the signal reception scenario, the signal coupling / separation circuit 2133 can receive an AC mixed signal from the bias processing circuit 214 via its first interface. The AC mixed signal includes a high-frequency AC received RF signal and a low-frequency AC sense acquisition signal. The signal coupling / separation circuit 2133 can send the high-frequency AC received RF signal to the signal separation / coupling circuit 2131 via its second interface, and can send the low-frequency AC sense acquisition signal to the second conversion circuit 2132 via its third interface. The second conversion circuit 2132 can convert the low-frequency AC sense acquisition signal into a differential sense acquisition signal and send it to the signal separation / coupling circuit 2131. The signal separation / coupling circuit 2131 can couple the high-frequency AC received RF signal output by the signal coupling / separation circuit 2133 and the differential sense acquisition signal output by the second conversion circuit 2132 into a mixed signal, which can be sent to the baseband unit 220 via the first interface IX of the RF processing circuit 213.

[0143] In the above example, by configuring a signal separation / coupling circuit, a second conversion circuit and a signal coupling / separation circuit in the original radio frequency unit, these three circuits can convert the type of signal sent by the network management device into the type of signal received by the perception unit, and also convert the type of signal sent by the perception unit into the type of signal received by the network management device, thereby providing support for smooth communication between the network management device and the perception unit.

[0144] It can be understood that the second conversion circuit 2132 can be any device or combination of devices that can realize the mutual conversion between differential signals and low-frequency AC signals. For example, its internal structure can be seen from the first conversion circuit 2122 shown in Figure 6 above, and this application will not repeat them one by one.

[0145] In addition, the above content is only introduced using the example of transmitting a mixed signal in the RF processing circuit 213. In actual scenarios, the RF processing circuit 213 can also be used to transmit a single signal, such as transmitting only one of the RF transmit signal and the perception request signal, or transmitting only one of the RF receive signal and the perception acquisition signal. The specific transmission process can be found in the above content, and this application will not repeat it one by one.

[0146] Change point 2

[0147] As another change point, please refer to the RF unit shown in Figure 7. Unlike the RF unit 211 on the existing antenna system, the RF unit in implementation scheme two can also integrate a bias processing circuit 214. The bias processing circuit 214 can be used to mix and transmit the RF transmission signal and perception request signal sent by the RF processing circuit 213 and the DC power supply signal sent by the power supply 240 to the N terminal units, and to mix and transmit the RF receiving signal and perception acquisition signal sent by the N terminal units to the RF processing circuit 213.

[0148] It is understandable that there are many possible structures of the bias processing circuit that can achieve the above functions. For example, as an example, please continue to refer to Figure 8, the bias processing circuit 214 may include a seventh filter element 2141, the first end of the seventh filter element 2141 corresponds to the power interface P2 of the bias processing circuit 214 (for example, the first end of the filter element 2141 is the power interface P2 of the bias processing circuit 214, or the first end of the filter element 2141 is connected to the power interface P2 of the bias processing circuit 214 through a line), and the second end of the seventh filter element 2141 is connected to the M first interfaces A1~A1 of the bias processing circuit 214. M After being connected, the T second interfaces H1 to H2 of the bias processing circuit 214 are connected. T .

[0149] In the bias processing circuit 214, the seventh filter element 2141 can filter the AC signal in the input signal and only allow the DC signal therein to pass. For example, in the scenario of sending a signal, the seventh filter element 2141 can receive a DC power supply signal from the power supply 240. Even if the DC power supply signal is not pure, the AC signal in the impure signal can be filtered by the seventh filter element 2141, so that the relatively pure DC power supply signal is transmitted to the N terminal units through the seventh filter element 2141. In addition, due to the M first interfaces A1~A1 of the bias processing circuit 214 M After being connected, the T second interfaces H1 to H2 of the bias processing circuit 214 are directly connected. T Therefore, through the M radio frequency interfaces RF1 to RF M The M first interfaces A1 to A1 of the bias processing circuit 214 are sent to M The mixed AC signal (including the radio frequency transmission signal in the form of a high-frequency AC signal and the sensing request signal in the form of a low-frequency AC signal) can be transmitted through the T second interfaces H1 to H T Directly transmit to the N terminal units on T RF cables. On the contrary, in the scenario of receiving signals, due to the T second interfaces H1 to H T After being connected, the M first interfaces A1 to A1 of the bias processing circuit 214 are directly connected.M Therefore, the radiation unit or fusion unit in the N terminal units sends the T second interfaces H1 to H2 of the bias processing circuit 214. T The radio frequency receiving signal in the form of a high frequency AC signal on the N terminal units and the sensing unit or fusion unit in the N terminal units are sent to the T second interfaces H1 to H1 of the bias processing circuit 214. T The sensing acquisition signal in the form of a low-frequency AC signal on the bias processing circuit 214 can be transmitted through the M first interfaces A1 to A M The signal is directly transmitted to the RF processing circuit 213 , and then forwarded to the baseband unit 220 through high-frequency transmission and low-frequency conversion processing in the RF processing circuit 213 .

[0150] It can be understood that the seventh filtering element 2141 can be any filtering device or a combination of any multiple filtering devices that can allow DC signals to pass through but not AC signals to pass through, such as an inductor. With such a setting, the characteristic of inductance of "passing DC and blocking AC" can be utilized to filter out a relatively pure DC power supply signal.

[0151] Change point three

[0152] As another change, since the AISG interface is eliminated in the RF unit, the DC power supply signal input by the power supply 240 to the RF unit can be provided to the bias processing circuit 214 in its entirety, and no longer needs to be provided to the AISG interface. For example, please continue to refer to Figure 8. The power supply interface P2 of the bias processing circuit 214 can be directly configured as the power supply interface P of the RF unit, or can be connected to the power supply interface P of the RF unit through a line, and the power supply interface P of the RF unit can no longer be connected to other interfaces. In this way, the DC power supply signal output by the power supply 240 can be transmitted to the seventh filter element 2141 after passing through the power supply interface P of the RF unit, and then, after being filtered by the seventh filter element 2141, it can be provided to the N terminal units.

[0153] In the above-mentioned implementation scheme 2, the signal processing unit can be a unit obtained by improving the structure of the radio frequency unit in the existing antenna system. By integrating the bias processing function into the radio frequency unit of the existing antenna system, a system integrating the sensing function can be obtained by directly replacing the radio frequency unit in the existing antenna system. Such a setting can reduce labor and material costs while eliminating the need to set up new components, thereby reducing the space occupied by the system due to adding new functions and realizing a miniaturized design of the system.

[0154] It should be noted that the components and their positions shown in any of Figures 3 to 8 above are only one possible division of the signal processing unit. This division is merely a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. For example, in the above-mentioned implementation scheme 1, the radio frequency unit and the signal bias unit can be integrated into one physical entity, or they can exist separately as two different physical entities. The first conversion circuit and the first bias circuit can be integrated into one physical entity, or they can exist separately as two different physical entities, and so on. This application does not limit this.

[0155] 2. Fusion Unit

[0156] In one possible implementation, the fusion unit may have the functions of signal splitting, signal merging, and signal transmission. For example, in a signal transmission scenario, the fusion unit may receive one or more of a radio frequency transmission signal, a perception request signal, and a DC power supply signal from the signal processing unit 210, and may send the radio frequency transmission signal to the radiation unit in the fusion unit, and send the perception request signal and the DC power supply signal to the perception unit in the fusion unit. In a signal reception scenario, the fusion unit may convert the radio wave signal propagating in the air into a radio frequency reception signal, obtain a perception collection signal, and send the radio frequency reception signal and / or the perception collection signal to the signal processing unit 210.

[0157] Please refer to Figure 9, which shows an exemplary structural diagram of a fusion unit provided by the present application. In this example, the fusion unit may include a radiation unit 251, a sensing unit 252, and a second bias circuit 253. The first interface e1 of the second bias circuit 253 is connected to the signal processing unit 210, the second interface e2 of the second bias circuit 253 is connected to the radiation unit 251, the third interface e3 of the second bias circuit 253 is connected to the interface f1 of the sensing unit 252, and the fourth interface e4 of the second bias circuit 253 is connected to the power interface f2 of the sensing unit 252. In the scenario of sending a signal, the second bias circuit 253 can receive an input signal from the signal processing unit 210 through the first interface e1. The input signal may include one or more of a radio frequency transmission signal, a sensing request signal, and a DC power supply signal. The second bias circuit 253 can separate and transmit the input signal. Specifically, it can feed the RF transmission signal separated from the input signal to the radiating unit 251 via the second interface e2, where it is converted into a radio electromagnetic wave signal and then transmitted into the air. Furthermore, it can send the sensing request signal separated from the input signal to the sensing unit 252 via the third interface e3, and provide the DC power supply signal separated from the input signal to the sensing unit 252 via the fourth interface e4 to power the sensing unit 252. Conversely, in the signal reception scenario, the second bias circuit 253 can receive the RF receive signal from the radiating unit 251 via the second interface e2 and the sensing acquisition signal from the sensing unit 252 via the third interface e3, and can send the RF receive signal and the sensing acquisition signal to the signal processing unit 210 via the first interface e1. Thus, by providing the second bias circuit in the fusion unit, it is possible to separate and transmit the signal input from the signal processing unit to the fusion unit, and to combine and transmit the signals input from the radiating unit and the sensing unit, thereby integrating the antenna transceiver function with the sensing transceiver function.

[0158] It is understood that the second bias circuit 253 can be any component or combination thereof that can achieve signal separation and signal merging. For example, please refer to Figure 10, which exemplifies a schematic structural diagram of a second bias circuit provided by the present application. The second bias circuit 253 may include a fourth filter element 2534, a fifth filter element 2535, and a sixth filter element 2536. The first end of the fourth filter element 2534, the first end of the fifth filter element 2535, and the first end of the sixth filter element 2536 are connected to form a first interface e1 of the second bias circuit 253. The second end of the fourth filter element 2534 serves as a second interface e2 of the second bias circuit 253. The second end of the fifth filter element 2535 serves as a third interface e3 of the second bias circuit 253. The second end of the sixth filter element 2536 serves as a fourth interface e4 of the second bias circuit 253.

[0159] In the second bias circuit 253, the fourth filter element 2534 can be used to filter the DC signal and low-frequency AC signal in the input signal, the fifth filter element 2535 can be used to filter the DC signal and high-frequency AC signal in the input signal, and the sixth filter element 2536 can be used to filter the AC signal in the input signal. For example, please continue to refer to Figure 10. In the input signal scenario, the input signal of the signal processing unit 210 is transmitted to the fourth filter element 2534, the fifth filter element 2535 and the sixth filter element 2536 respectively. The fourth filter element 2534 allows the high-frequency AC signal therein to pass through and blocks the low-frequency AC signal and DC signal therein, so that the relatively pure RF transmission signal in the input signal is coupled into the radiation unit 251. The fifth filter element 2535 allows the low-frequency AC signal therein to pass through and blocks the high-frequency AC signal and DC signal therein, so that the relatively pure perception request signal in the input signal is transmitted to the perception unit 252. The sixth filter element 2536 allows the DC signal therein to pass through and blocks the AC signal therein, so that the relatively pure DC power supply signal in the input signal is transmitted to the power supply terminal f2 of the perception unit 252 to power the perception unit 252. Conversely, in the signal reception scenario, the fourth filtering element 2534 can receive the RF reception signal from the radiating unit 251, and by allowing the high-frequency AC signal therein to pass through and blocking the low-frequency AC signal and DC signal therein, a relatively pure RF reception signal is transmitted to the signal processing unit 210. The fifth filtering element 2535 can receive the sensing acquisition signal from the sensing unit 252, and by allowing the low-frequency AC signal therein to pass through and blocking the high-frequency AC signal and DC signal therein, a relatively pure sensing acquisition signal is transmitted to the signal processing unit 210.

[0160] It can be understood that the fourth filter element 2534 can be any filter device or a combination of any multiple filter devices that can allow high-frequency AC signals to pass through and prevent signals other than high-frequency AC signals from passing through, the fifth filter element 2535 can be any filter device or a combination of any multiple filter devices that can allow low-frequency AC signals to pass through and prevent signals other than low-frequency AC signals from passing through, and the sixth filter element 2536 can be any filter device or a combination of any multiple filter devices that can allow DC signals to pass through and prevent AC signals from passing through. Optionally, please refer to Figure 11, which exemplifies a specific structural schematic diagram of a second bias circuit provided in the present application. The figure takes the fourth filter element 2534 and the fifth filter element 2535 as capacitors and the sixth filter element 2536 as an inductor as an example. With such a configuration, the characteristic of the capacitor "passing AC and blocking DC" can be utilized. By setting the capacitor bandpass frequency of the fourth filter element 2534 to high frequency, relatively pure high-frequency AC RF transmission signals and RF receiving signals are filtered out. By setting the capacitor bandpass frequency of the fifth filter element 2535 to low frequency, relatively pure low-frequency AC perception request signals and perception acquisition signals are filtered out. In addition, the characteristic of the inductor "passing DC and blocking AC" can be utilized to filter out relatively pure DC power supply signals.

[0161] It should be noted that the components and their positions shown in any of Figures 9 to 11 are only one possible division of the fusion unit. This division is merely a division of logical functions. In actual implementation, all or part of the components can be integrated into one physical entity, or they can be physically separated. For example, in some embodiments, the second bias circuit and the radiation unit can be integrated into one physical entity, or they can exist separately as two different physical entities; or the second bias circuit and the sensing unit can be integrated into one physical entity, or they can exist separately as two different physical entities, etc. This application does not limit this.

[0162] The above content is only introduced by taking the fusion of sensing units in an antenna system as an example. The antenna system can be an antenna system in any communication standard, such as a 5G communication system, a 5.5G communication system, or even a 6G communication system that may evolve in the future. In addition, the above fusion solution can also be applied to any device or system that needs to fuse two different functional units, and is not limited to the fusion of antennas and sensing units. By setting up a signal processing unit to merge and separate the signals of the two functional units in one piece, a set of feed networks can be reused to achieve at least two functions, reducing manpower and material costs.

[0163] In addition, based on the foregoing content, the present application also provides a chip, which may include any one or more of the above-mentioned RF unit, signal bias unit or fusion unit, and may also include an interface, any one or more units being used to read instructions through the interface to execute the method corresponding to any one or more units in the above-mentioned embodiments.

[0164] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed, the method corresponding to any one or more units in the above embodiments is implemented.

[0165] The embodiments of the present application further provide a computer program product, which, when executed, implements the method corresponding to any one or more units in the above embodiments.

[0166] Furthermore, in the various embodiments of the present application, unless otherwise specified or provided for, the terms and / or descriptions of the different embodiments are consistent and can be referenced by each other. The technical features of the different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0167] In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple. In the text description of this application, the character " / " generally indicates that the associated objects before and after are in an "or" relationship. In addition, in this application, the word "exemplary" is used to indicate an example, illustration or description. Any embodiment or design described as "example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or design. Alternatively, it can be understood that the use of the word "example" is intended to present concepts in a specific way and does not limit the present application.

[0168] It will be appreciated that the various numerical numbers involved in this application are merely for the purpose of describing the distinctions made, and are not intended to limit the scope of the embodiments of the present application. The size of the sequence numbers of the above-mentioned processes does not imply the order of execution, and the order of execution of each process should be determined by its function and inherent logic. Terms such as "first", "second", and similar expressions are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, comprising a series of steps or units. Methods, systems, products, or devices are not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are inherent to these processes, methods, products, or devices.

[0169] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A radio frequency unit, characterized in that: The device comprises a first interface and at least one second interface, wherein the first interface is used to connect a baseband unit, and the at least one second interface is used to connect N terminal units, wherein the N terminal units include at least one radiation unit and at least one sensing unit, where N is an integer greater than or equal to 2, and / or, includes at least one radiation and sensing fusion unit, where N is a positive integer; The radio frequency unit is used for: receiving a radio frequency transmission signal and / or a sensing request signal from the baseband unit through the first interface, and sending the radio frequency transmission signal and / or the sensing request signal to the N terminal units through the at least one second interface; or, The RF receiving signal from the radiation unit in the N terminal units, the perception collection signal from the perception unit in the N terminal units and the RF receiving signal and / or the perception collection signal from the fusion unit in the N terminal units are received through the at least one second interface, and the RF receiving signal and / or the perception collection signal are sent to the baseband unit through the first interface.

2. The radio frequency unit according to claim 1, characterized in that: The at least one second interface includes M radio frequency interfaces and a sensing interface, the M radio frequency interfaces are connected to the M first interfaces of the signal bias unit in a one-to-one correspondence, the sensing interface is connected to the second interface of the signal bias unit, and the third interface of the signal bias unit is connected to the N terminal units, where M is a positive integer; The radio frequency unit is specifically used for: The RF transmission signal is sent or the RF reception signal is received through the M RF interfaces, and the perception request signal is sent or the perception collection signal is received through the perception interface.

3. The radio frequency unit according to claim 1, characterized in that: The radio frequency unit includes a radio frequency processing circuit and a bias processing circuit, the radio frequency processing circuit includes a first interface and M second interfaces, the bias processing circuit includes M first interfaces and T second interfaces, the first interface of the radio frequency processing circuit corresponds to the first interface of the radio frequency unit, the M second interfaces of the radio frequency processing circuit are connected to the M first interfaces of the bias processing circuit, the T second interfaces of the bias processing circuit correspond to at least one third interface of the radio frequency unit, and T is a positive integer; The radio frequency processing circuit is used for: receiving the radio frequency transmission signal and / or the sensing request signal through its first interface, and sending the radio frequency transmission signal and / or the sensing request signal to the bias processing circuit through its M second interfaces; or, receiving the RF reception signal and / or the sensing acquisition signal from the bias processing circuit through its M second interfaces, and sending the RF reception signal and / or the sensing acquisition signal through its first interface; The bias processing circuit is used for: receiving the RF transmission signal and / or the sensing request signal from the RF processing circuit through its M first interfaces, and sending the RF transmission signal and / or the sensing request signal to the N terminal units through its T second interfaces; or, The RF receiving signals and / or the sensing acquisition signals are received from the N terminal units through its T second interfaces, and the RF receiving signals and / or the sensing acquisition signals are sent to the RF processing circuit through its M first interfaces.

4. The radio frequency unit according to claim 3, characterized in that: The radio frequency processing circuit comprises a signal separation / coupling circuit, a second conversion circuit and a signal coupling / separation circuit, wherein the first interface of the signal separation / coupling circuit corresponds to the first interface of the radio frequency processing circuit, the second interface of the signal separation / coupling circuit is connected to the second interface of the signal coupling / separation circuit, the third interface of the signal separation / coupling circuit is connected to the first interface of the second conversion circuit, the second interface of the second conversion circuit is connected to the third interface of the signal coupling / separation circuit, and the first interface of the signal coupling / separation circuit is connected to M second interfaces of the radio frequency processing circuit; The signal separation / coupling circuit is used for: receiving the radio frequency transmission signal and / or the perception request signal through its first interface, sending the radio frequency transmission signal through its second interface, and sending the perception request signal through its third interface; or, receiving the radio frequency reception signal through its second interface, receiving the perception acquisition signal through its third interface, and sending the radio frequency reception signal and / or the perception request signal through its first interface; The second conversion circuit is used for: converting the sensing request signal inputted by the first interface into a low-frequency AC signal, and sending the converted sensing request signal through the second interface; or, The sensing acquisition signal inputted by the second interface is converted into a differential signal, and the converted sensing acquisition signal is sent through the first interface. Collect signals; The signal coupling / separation circuit is used for: receiving the radio frequency transmission signal through its second interface, receiving the converted perception request signal through its third interface, and sending the radio frequency transmission signal and / or the converted perception request signal through its first interface; or, The radio frequency receiving signal and / or the sensing acquisition signal are received through its first interface, the radio frequency receiving signal is sent through its second interface, and the sensing acquisition signal is sent through its third interface.

5. The radio frequency unit according to claim 3 or 4, characterized in that: The bias processing circuit also includes a power supply interface, and the power supply interface is connected to a power supply; The bias processing circuit is further used for: It receives a DC power supply signal from the power supply through its power supply interface, and sends the DC power supply signal to the N terminal units through its T second interfaces.

6. The radio frequency unit according to claim 5, characterized in that: The bias processing circuit further includes a seventh filter element, a first end of the seventh filter element corresponds to the power interface of the bias processing circuit, and a second end of the seventh filter element is connected to the M first interfaces of the bias processing circuit and then connected to the T second interfaces of the bias processing circuit; The seventh filtering element is used to filter the AC signal in the input signal.

7. The radio frequency unit according to claim 6, characterized in that: The seventh filtering element is an inductor.

8. A signal bias unit, characterized in that: The system comprises M first interfaces, a second interface and T third interfaces, wherein the M first interfaces are connected to M radio frequency interfaces of a radio frequency unit, the second interface is connected to a sensing interface of the radio frequency unit, and the T third interfaces are connected to N terminal units, wherein the N terminal units include at least one radiation unit and at least one sensing unit, where N is an integer greater than or equal to 2, and / or include at least one radiation and sensing fusion unit, where N is a positive integer; M and T are positive integers; The signal bias unit is used for: receiving a radio frequency transmission signal from the radio frequency unit through the M first interfaces, receiving a sensing request signal from the radio frequency unit through the second interface, and sending the radio frequency transmission signal and / or the sensing request signal to the N terminal units through the T third interfaces; or, The RF receiving signals from the radiation units in the N terminal units, the perception collection signals from the perception units in the N terminal units, and the RF receiving signals and / or the perception collection signals from the fusion units in the N terminal units are received through the T third interfaces, the RF receiving signals are sent to the RF units through the M first interfaces, and the perception collection signals are sent to the RF units through the second interface.

9. The signal bias unit according to claim 8, characterized in that: The T second interfaces are connected to the T radio frequency cables in a one-to-one correspondence, and each of the radio frequency cables is provided with one or more terminal units.

10. The signal bias unit according to claim 8 or 9, characterized in that: The signal bias unit also includes a power interface, and the power interface is connected to a power source; The signal bias unit is further used for: A DC power supply signal is received from the power supply through the power supply interface, and the DC power supply signal is sent to the N terminal units through the T third interfaces.

11. The signal bias unit according to claim 10, characterized in that: The radio frequency transmission signal and the radio frequency reception signal received by the signal bias unit are high-frequency AC signals, and the perception request signal and the perception collection signal received by the signal bias unit are low-frequency AC signals; The signal bias unit further includes a first bias circuit, which includes M first filter elements, a second filter element and a third filter element, wherein the first ends of the M first filter elements are connected to the M first interfaces of the signal bias unit in a one-to-one correspondence, the first end of the second filter element is used to connect to the second interface of the signal bias unit, the first end of the third filter element is connected to the power interface of the signal bias unit, and the second ends of the M first filter elements, the second end of the second filter element and the second end of the third filter element are connected to each other and then connected to the T third interfaces of the signal bias unit; The first filtering element is used to filter the DC signal and the low-frequency AC signal in the input signal; The second filtering element is used to filter the DC signal and the high-frequency AC signal in the input signal; The third filtering element is used to filter the AC signal in the input signal.

12. The signal bias unit according to claim 11, characterized in that: The first filter element and the second filter element are capacitors, and the third filter element is an inductor.

13. The signal bias unit according to any one of claims 8 to 12, characterized in that: The sensing request signal from the radio frequency unit is a differential signal, and the sensing acquisition signal from the terminal unit is a low-frequency AC signal; The signal bias unit comprises a first conversion circuit, a first interface of the first conversion circuit corresponds to a second interface of the signal bias unit, and the second interface of the first conversion circuit is used to connect T third interfaces of the signal bias unit; The first conversion circuit is used for: receiving the sensing request signal from the radio frequency unit through its first interface, converting the sensing request signal into a low-frequency AC signal, and sending the converted sensing request signal through its second interface; or, The sensing acquisition signal is received from the terminal unit through its second interface, the sensing acquisition signal is converted into a differential signal, and then the converted sensing acquisition signal is sent through its first interface.

14. A terminal unit, characterized in that: It includes a radiation unit, a sensing unit and a second bias circuit, wherein a first interface of the second bias circuit is connected to a signal processing unit, a second interface of the second bias circuit is connected to the radiation unit, and a third interface of the second bias circuit is connected to the sensing unit; The second bias circuit is used for: receiving a radio frequency transmission signal and / or a sensing request signal from the signal processing unit through its first interface, sending the radio frequency transmission signal to the radiation unit through its second interface, and sending the sensing request signal to the sensing unit through its third interface; or, receiving a radio frequency receiving signal from the radiation unit through its second interface, receiving a sensing acquisition signal from the sensing unit through its third interface, and sending the radio frequency receiving signal and / or the sensing acquisition signal to the signal processing unit through its first interface; The radiation unit is used for: converting the radio frequency transmission signal from the second bias circuit into an electromagnetic wave signal and then sending it out; or, converting the received electromagnetic wave signal into the radio frequency receiving signal and sending it to the second bias circuit; The sensing unit is used for: performing a corresponding acquisition operation according to an instruction of the sensing request signal from the second bias circuit; or, The sensing acquisition signal acquired within a period of time is sent to the second bias circuit.

15. The terminal unit according to claim 14, characterized in that: The second bias circuit further includes a fourth interface, and the fourth interface is connected to a power interface of the sensing unit; The second bias circuit is further used for: The DC power supply signal is received from the signal processing unit through its first interface, and the DC power supply signal is sent to the sensing unit through its fourth interface.

16. The terminal unit according to claim 15, characterized in that: The second bias circuit comprises a fourth filter element, a fifth filter element and a sixth filter element, wherein a first end of the fourth filter element, a first end of the fifth filter element and a first end of the sixth filter element are connected and then connected to a first interface of the second bias circuit, a second end of the fourth filter element corresponds to a second interface of the second bias circuit, a second end of the fifth filter element corresponds to a third interface of the second bias circuit, and a second end of the sixth filter element corresponds to a fourth interface of the second bias circuit; The fourth filtering element is used to filter the DC signal and the low-frequency AC signal in the input signal; The fifth filtering element is used to filter the DC signal and the high-frequency AC signal in the input signal; The sixth filtering element is used to filter the AC signal in the input signal.

17. The terminal unit according to claim 16, characterized in that: The fourth filter element and the fifth filter element are capacitors, and the sixth filter element is an inductor.

18. A radiation and perception fusion system, characterized in that: The device comprises a signal processing unit and N terminal units connected to the signal processing unit, wherein the N terminal units include at least one radiation unit and at least one sensing unit, wherein N is a positive integer greater than or equal to 2, and / or comprises at least one radiation and sensing fusion unit, wherein N is a positive integer; The signal processing unit is used to send a radio frequency transmission signal and / or a perception request signal to the N terminal units, or to receive a radio frequency reception signal from a radiation unit in the N terminal units, a perception collection signal from a perception unit in the N terminal units, and the radio frequency reception signal and / or the perception collection signal from a fusion unit in the N terminal units.

19. The fusion system according to claim 18, characterized in that: The fusion system further includes a power supply, which is connected to the signal processing unit; The power supply is used to send a DC power supply signal to the signal processing unit; The signal processing unit is also used to send the DC power supply signal from the power supply to the N terminal units.

20. The fusion system according to claim 18 or 19, characterized in that: The signal processing unit includes a radio frequency unit and a signal bias unit, and the signal bias unit is connected to the radio frequency unit and the N terminal units respectively; The radio frequency unit is used to send the radio frequency transmission signal and / or the perception request signal to the signal bias unit, or to receive the radio frequency reception signal and / or the perception collection signal from the signal bias unit; The signal bias unit is used to send the RF transmission signal and / or the perception request signal from the RF unit to the N terminal units, or to send the RF reception signal from the radiation unit in the N terminal units, the perception collection signal from the perception unit in the N terminal units, and the RF reception signal and / or the perception collection signal from the fusion unit in the N terminal units to the RF unit.

21. The fusion system according to claim 20, characterized in that: The signal bias unit includes T third interfaces, the T third interfaces are connected to T radio frequency cables, each of the radio frequency cables is provided with one or more terminal units, and T is a positive integer; The signal bias unit is specifically used to send the RF transmission signal and / or the perception request signal through the T third interfaces, or to receive the RF reception signal and / or the perception acquisition signal through the T third interfaces.

22. The fusion system according to claim 20 or 21, characterized in that: The radio frequency unit includes M radio frequency interfaces, the signal bias unit includes M first interfaces and T third interfaces, the M radio frequency interfaces are connected to the M first interfaces in a one-to-one correspondence, the T third interfaces are connected to the N terminal units, and the M and T are positive integers; The radio frequency unit is specifically configured to send the radio frequency transmit signal and receive the radio frequency receive signal through the M radio frequency interfaces; The signal bias unit is specifically configured to receive the RF transmit signal and send the RF receive signal through the M first interfaces, and to send the RF transmit signal and receive the RF receive signal through the T third interfaces.

23. The fusion system according to any one of claims 20 to 22, characterized in that: The radio frequency unit includes a sensing interface, the signal bias unit includes a second interface and T third interfaces, the sensing interface is connected to the second interface, the T third interfaces are connected to the N terminal units, and T is a positive integer; The radio frequency unit is specifically used to send the sensing request signal and receive the sensing acquisition signal through the sensing interface; The signal bias unit is specifically used to receive the perception request signal and send the perception acquisition signal through the second interface, and to send the perception request signal and receive the perception acquisition signal through the T third interfaces.

24. The fusion system according to any one of claims 20 to 23, characterized in that: The signal bias unit includes a power interface and T third interfaces, the power interface is connected to a power source, the T third interfaces are connected to the N terminal units, and T is a positive integer; The signal bias unit is further used to receive a DC power supply signal from the power supply through the power supply interface, and to send the DC power supply signal through the T third interfaces.

25. The fusion system according to any one of claims 20 to 24, characterized in that The radio frequency transmission signal and the radio frequency reception signal received by the signal bias unit are high-frequency AC signals, and the perception request signal and the perception collection signal received by the signal bias unit are low-frequency AC signals; The signal bias unit includes a first bias circuit, the first bias circuit includes at least one first filter element, a second filter element and a third filter element, the first end of the at least one first filter element is used to receive the radio frequency transmission signal from the radio frequency unit or the radio frequency reception signal from the terminal unit, the first end of the second filter element is used to receive the perception request signal from the radio frequency unit or the perception collection signal of the terminal unit, the first end of the third filter element is used to receive a DC power supply signal, and the second end of the at least one first filter element, the second end of the second filter element and the second end of the third filter element are connected and then connected to the N terminal units; The first filtering element is used to filter the DC signal and the low-frequency AC signal in the input signal; The second filtering element is used to filter the DC signal and the high-frequency AC signal in the input signal; The third filtering element is used to filter the AC signal in the input signal.

26. The fusion system of claim 25, wherein: The first filter element and the second filter element are capacitors, and the third filter element is an inductor.

27. The fusion system according to any one of claims 20 to 26, characterized in that: The sensing request signal from the radio frequency unit is a differential signal, and the sensing acquisition signal from the terminal unit is a low-frequency AC signal; The signal bias unit includes a first conversion circuit, wherein a first interface of the first conversion circuit is used to receive a signal from the radio frequency unit. The sensing request signal, the second interface of the first conversion circuit is used to connect the N terminal units; The first conversion circuit is used to convert the perception request signal received by its first interface into a low-frequency AC signal, and send the converted perception request signal through its second interface; or, receive the perception acquisition signal from the terminal unit through its second interface, convert the perception acquisition signal into a differential signal, and then send the converted perception acquisition signal through its first interface.

28. The fusion system according to claim 18 or 19, characterized in that: The signal processing unit includes a radio frequency unit, the radio frequency unit includes a radio frequency processing circuit and a bias processing circuit, and the bias processing circuit is connected to the radio frequency processing circuit and the N terminal units respectively; The RF processing circuit is used to send the RF transmission signal and / or the sensing request signal to the bias processing circuit, or to receive the RF reception signal and / or the sensing acquisition signal from the bias processing circuit; The bias processing circuit is used to send the RF transmission signal and / or the perception request signal from the RF processing circuit to the N terminal units, or to send the RF reception signal and / or the perception acquisition signal from the N terminal units to the RF processing circuit.

29. The fusion system of claim 28, wherein: The RF processing circuit includes a first interface and M second interfaces, the bias processing circuit includes M first interfaces and T second interfaces, the M second interfaces of the RF processing circuit are connected to the M first interfaces of the bias processing circuit, the T second interfaces of the bias processing circuit are connected to the N terminal units, and M and T are positive integers; The RF processing circuit is specifically used to: receive the RF transmission signal and / or the perception request signal through its first interface, and send the RF transmission signal and / or the perception request signal to the bias processing circuit through its M second interfaces; or, receive the RF reception signal and / or the perception acquisition signal from the bias processing circuit through its M second interfaces, and send the RF reception signal and / or the perception acquisition signal through its first interface; The bias processing circuit is specifically used to: receive the RF transmission signal and / or perception request signal from the RF processing circuit through its M first interfaces, and send the RF transmission signal and / or perception request signal to the N terminal units through its T second interfaces; or, receive the RF reception signal and / or perception acquisition signal from the N terminal units through its T second interfaces, and send the RF reception signal and / or perception acquisition signal to the RF processing circuit through its M first interfaces.

30. The fusion system according to claim 28 or 29, characterized in that: The radio frequency processing circuit comprises a signal separation / coupling circuit, a second conversion circuit and a signal coupling / separation circuit, the second interface of the signal separation / coupling circuit is connected to the second interface of the signal coupling / separation circuit, the third interface of the signal separation / coupling circuit is connected to the first interface of the second conversion circuit, the second interface of the second conversion circuit is connected to the third interface of the signal coupling / separation circuit, and the first interface of the signal coupling / separation circuit is connected to the bias processing circuit; The signal separation / coupling circuit is used to receive the RF transmission signal and / or the perception request signal through its first interface, send the RF transmission signal through its second interface, and send the perception request signal through its third interface; or, receive the RF reception signal through its second interface, receive the perception acquisition signal through its third interface, and send the RF reception signal and / or the perception request signal through its first interface; The second conversion circuit is used to convert the perception request signal input by its first interface into a low-frequency AC signal, and send the converted perception request signal through its second interface; or, convert the perception acquisition signal input by its second interface into a differential signal, and send the converted perception acquisition signal through its first interface; The signal coupling / separation circuit is used to receive the RF transmission signal through its second interface, receive the converted perception request signal through its third interface, and send the RF transmission signal and / or the converted perception request signal through its first interface; or, receive the RF reception signal and / or the perception acquisition signal through its first interface, send the RF reception signal through its second interface, and send the perception acquisition signal through its third interface.

31. The fusion system according to any one of claims 28 to 30, characterized in that The bias processing circuit includes a power interface, and the power interface is connected to a power source; The bias processing circuit is also used to receive a DC power supply signal from the power supply through its power supply interface and send the DC power supply signal to the N terminal units.

32. The fusion system of claim 31, wherein: The bias processing circuit comprises a seventh filter element, a first end of the seventh filter element corresponds to a power interface of the bias processing circuit, and a second end of the seventh filter element is connected to the N terminal units; The seventh filtering element is used to filter the AC signal in the input signal.

33. The fusion system of claim 32, wherein: The seventh filtering element is an inductor.

34. The fusion system according to any one of claims 18 to 33, characterized in that The radiation and sensing fusion unit comprises a radiation unit, a sensing unit and a second bias circuit, wherein a first interface of the second bias circuit is connected to a signal processing unit, a second interface of the second bias circuit is connected to the radiation unit, and a third interface of the second bias circuit is connected to the sensing unit; The second bias circuit is used to receive the RF transmission signal and / or the perception request signal from the signal processing unit through its first interface, send the RF transmission signal to the radiation unit through its second interface, and send the perception request signal to the perception unit through its third interface; or, receive the RF reception signal from the radiation unit through its second interface, receive the perception collection signal from the perception unit through its third interface, and send the RF reception signal and / or the perception collection signal to the signal processing unit through its first interface; The radiation unit is used to: convert the radio frequency transmission signal from the second bias circuit into an electromagnetic wave signal and then send it out; or convert the received electromagnetic wave signal into the radio frequency reception signal and then send it to the second bias circuit; The sensing unit is used to: perform a corresponding acquisition operation according to the instruction of the sensing request signal from the second bias circuit; or send the sensing acquisition signal collected within a period of time to the second bias circuit.

35. The fusion system of claim 34, wherein: The second bias circuit further includes a fourth interface, and the fourth interface is connected to a power interface of the sensing unit; The second bias circuit is further used to: receive a DC power supply signal from the signal processing unit through its first interface, and send the DC power supply signal to the sensing unit through its fourth interface.

36. The fusion system of claim 35, wherein: The second bias circuit comprises a fourth filter element, a fifth filter element and a sixth filter element, wherein a first end of the fourth filter element, a first end of the fifth filter element and a first end of the sixth filter element are connected and then connected to a first interface of the second bias circuit, a second end of the fourth filter element corresponds to a second interface of the second bias circuit, a second end of the fifth filter element corresponds to a third interface of the second bias circuit, and a second end of the sixth filter element corresponds to a fourth interface of the second bias circuit; The fourth filtering element is used to filter the DC signal and the low-frequency AC signal in the input signal; The fifth filtering element is used to filter the DC signal and the high-frequency AC signal in the input signal; The sixth filtering element is used to filter the AC signal in the input signal.

37. The fusion system of claim 36, wherein: The fourth filter element and the fifth filter element are capacitors, and the sixth filter element is an inductor.

38. The fusion system according to any one of claims 18 to 37, characterized in that The fusion system further includes a baseband unit, and the baseband unit is connected to the signal processing unit; The baseband unit is used to send the radio frequency transmission signal to the signal processing unit, or receive the radio frequency reception signal from the signal processing unit; The signal processing unit is used to receive the radio frequency transmission signal from the baseband unit, or send the radio frequency reception signal to the baseband unit.

39. The fusion system of claim 38, wherein: Also included is a network management device, the network management device is connected to the baseband unit; The network management device is used to send the sensing request signal to the baseband unit, or receive the sensing acquisition signal from the baseband unit; The baseband unit is further used to send the perception request signal to the signal processing unit, or receive the perception collection signal from the signal processing unit and send the perception collection signal to the network management device; The signal processing unit is further used to receive the perception request signal from the baseband unit, or to send the perception acquisition signal to the baseband unit.

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