5G multimode transmission POI combiner device

Abstract

The utility model relates to the technical field of 5G communication, in particular to a 5G multimode transmission POI combiner device, which comprises a first input port, a second input port, a splitter, a first switch K1, a second switch K2, a first multi-frequency combiner, a second multi-frequency combiner, a bridge, a first double-frequency combiner, a second double-frequency combiner, a POI output port ANT1 and a POI output port ANT2. Through the mutual electrical connection relation and the mutual cooperation of the first switch K1 and the second switch K2, the transmission of single-mode signals, dual-mode signals and dual-channel MIMO signals of multi-system 5G communication system RRU of multiple operators in three modes of single-mode input, dual-mode input and MIMO input in the POI combiner device is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of 5G communication, in particular to a 5G multi-mode transmission POI combiner device. Background Art

[0002] Indoor is an important application scenario for 5G network coverage. In the 4G era, 70% of applications occurred indoors, and this data will increase to 85% in the 5G era. The importance of 5G indoor distribution construction is even more prominent. Currently, 5G indoor distribution is generally based on co-construction. Networks of different systems of the three major operators are combined into a set of antenna feeder systems through a POI combiner to cover the target area. With the development of 5G RRU equipment towards intensification, a single device can transmit signals of two network systems on the same port. For example, a dual-mode RRU device of 5G NR 2.6 GHz and 4G FDD 1.8 GHz. However, the traditional indoor distribution POI combiner only supports the separate access of two ports of 5G NR 2.6 GHz and 4G FDD 1.8 GHz, resulting in the inability of the dual-mode RRU device to be used in the indoor distribution scenario. At the same time, for some indoor distribution scenarios with high data traffic, the POI combiner needs to support the access of dual-channel MIMO signals. The traditional indoor distribution POI combiner needs to use two units for networking and cannot be implemented on a single device. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a 5G multi-mode transmission POI combiner device, which can realize the single-mode signal, dual-mode signal, and dual-channel MIMO signal of the RRU in a 5G communication system with multiple systems of multiple operators to perform three modes of transmission, namely single-mode input, dual-mode input, and MIMO input, within the POI combiner device.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A 5G multi-mode transmission POI combiner device includes a first input port, a second input port, a splitter, a first switch K1, a second switch K2, a first multi-frequency combiner, a second multi-frequency combiner, a hybrid coupler, a first dual-frequency combiner, a second dual-frequency combiner, a POI output port ANT1, and a POI output port ANT2;

[0006] The first input port is electrically connected to the input end of the splitter. The output end of the splitter is respectively electrically connected to the first input end of the second switch K2 and the input end of the first multi-frequency combiner. The output end of the first multi-frequency combiner is electrically connected to the first input end of the hybrid coupler. The first output end of the second switch K2 and the first output end of the hybrid coupler are respectively electrically connected to the two input ends of the first dual-frequency combiner. The output end of the first dual-frequency combiner is electrically connected to the POI output port ANT1;

[0007] The second input port is electrically connected to the input end of the first switch K1. The first output end of the first switch K1 is electrically connected to the second input end of the second switch K2. The second output end of the second switch K2 is electrically connected to the input end of the second multi-frequency combiner. The output end of the second multi-frequency combiner is electrically connected to the second input end of the hybrid coupler. The second output end of the first switch K1 and the second output end of the hybrid coupler are respectively electrically connected to the two input ends of the second dual-frequency combiner. The output end of the second dual-frequency combiner is electrically connected to the POI output port ANT2.

[0008] Further, both the first switch K1 and the second switch K2 are passive mechanical switches.

[0009] Further, the passive mechanical switch adopts a jumper switch.

[0010] Further, a controller is further included. Both the first switch K1 and the second switch K2 are electronic switches, and the electronic switches are electrically connected to the controller.

[0011] Further, the controller adopts a 51 single-chip microcomputer.

[0012] Further, the splitter adopts a third-order intermodulation suppression PIM value less than -155 dBc@2*43 dBm splitter.

[0013] The beneficial effects of the present utility model are as follows:

[0014] A 5G multi-mode transmission POI combiner device provided by the present utility model includes a first input port, a second input port, a splitter, a first switch K1, a second switch K2, a first multi-frequency combiner, a second multi-frequency combiner, a hybrid coupler, a first dual-frequency combiner, a second dual-frequency combiner, a POI output port ANT1, and a POI output port ANT2. Through the electrical connection relationships among them and the mutual cooperation of the first switch K1 and the second switch K2, single-mode signals, dual-mode signals, and dual-channel MIMO signals of the RRU of a 5G communication system with multiple operators and multiple systems can be transmitted in three modes, namely single-mode input, dual-mode input, and MIMO input, within the POI combiner device. Description of the Drawings

[0015] Figure 1 The following shows a structural block diagram of a 5G multi-mode transmission POI combiner device of the present utility model;

[0016] Figure 2 The following shows a connection structure diagram of the first switch K1 of a 5G multi-mode transmission POI combiner device of the present utility model;

[0017] Figure 3The figure shows the connection structure diagram of the second switch K2 of a 5G multi-mode transmission POI combiner device of the present utility model;

[0018] Figure 4 The figure shows the connection structure diagram of the electronic switch of a 5G multi-mode transmission POI combiner device of the present utility model;

[0019] Figure 5 The figure shows the structural block diagram of the single-mode input transmission mode of a 5G multi-mode transmission POI combiner device of the present utility model;

[0020] Figure 6 The figure shows the structural block diagram of the dual-mode input transmission mode of a 5G multi-mode transmission POI combiner device of the present utility model;

[0021] Figure 7 The figure shows the structural block diagram of the MIMO input transmission mode of a 5G multi-mode transmission POI combiner device of the present utility model;

[0022] Figure 8 The figure shows the structural block diagram of the MIMO + dual-mode input transmission mode of a 5G multi-mode transmission POI combiner device of the present utility model;

[0023] Explanation of the reference numerals in the drawings:

[0024] 1 - First input port; 2 - Second input port; 3 - Splitter; 4 - First switch K1; 5 - Second switch K2; 6 - First multi-frequency combiner; 7 - Second multi-frequency combiner; 8 - Hybrid coupler; 9 - First dual-frequency combiner; 10 - Second dual-frequency combiner; 11 - POI output port ANT1; 12 - POI output port ANT2. Detailed implementation manners

[0025] The following further describes the present utility model in conjunction with the drawings and specific embodiments as follows:

[0026] As Figures 1-8 shown, a 5G multi-mode transmission POI combiner device provided by the present utility model includes a first input port 1, a second input port 2, a splitter 3, a first switch K1 4, a second switch K2 5, a first multi-frequency combiner 6, a second multi-frequency combiner 7, a hybrid coupler 8, a first dual-frequency combiner 9, a second dual-frequency combiner 10, a POI output port ANT1 11, and a POI output port ANT2 12;

[0027] The first input port 1 is electrically connected to the input end of the splitter 3. The output ends of the splitter 3 are respectively electrically connected to the first input end (node 1) of the second switch K2 5 and the input end of the first multi-frequency combiner 6. The output end of the first multi-frequency combiner 6 is electrically connected to the first input end of the hybrid coupler 8. The first output end (node 2) of the second switch K2 5 and the first output end of the hybrid coupler 8 are respectively electrically connected to the two input ends of the first dual-frequency combiner 9. The output end of the first dual-frequency combiner 9 is electrically connected to the POI output port ANT1 11;

[0028] The second input port 2 is electrically connected to the input end (node 1) of the first switch K1 4. The first output end (node 2) of the first switch K1 4 is electrically connected to the second input end (node 3) of the second switch K2 5. The second output end (node 4) of the second switch K2 5 is electrically connected to the input end of the second multi-frequency combiner 7. The output end of the second multi-frequency combiner 7 is electrically connected to the second input end of the hybrid coupler 8. The second output end (node 3) of the first switch K1 4 and the second output end of the hybrid coupler 8 are respectively electrically connected to the two input ends of the second dual-frequency combiner 10. The output end of the second dual-frequency combiner 10 is electrically connected to the POI output port ANT2 12.

[0029] From the above description, it can be seen that the present utility model has the following beneficial effects: A 5G multi-mode transmission POI combiner device provided by the present utility model includes a first input port, a second input port, a splitter, a first switch K1, a second switch K2, a first multi-frequency combiner, a second multi-frequency combiner, a hybrid coupler, a first dual-frequency combiner, a second dual-frequency combiner, a POI output port ANT1, and a POI output port ANT2. Through the electrical connection relationships among them and the mutual cooperation of the first switch K1 and the second switch K2, it realizes the single-mode signal, dual-mode signal, and dual-channel MIMO signal of the RRU of the 5G communication system with multiple operators and multiple systems to be transmitted in three modes, namely single-mode input, dual-mode input, and MIMO input, within the POI combiner device.

[0030] In this embodiment, the splitter 3 adopts a third-order intermodulation suppression PIM value less than -155 dBc@2*43 dBm frequency divider, which realizes the frequency division access of 5G NR 2.6 GHz and 4G FDD 1.8 GHz signal sources. At the same time, the third-order intermodulation PIM value of the frequency divider is better than the third-order intermodulation suppression PIM value of -150 dBc@2*43 dBm of the existing POI combiner device with independent port input in the market, ensuring that the overall third-order intermodulation index of the distribution system is not affected after the expansion device is accessed.

[0031] The first switch K1 4 and the second switch K2 5 are implemented in two ways, specifically as follows:

[0032] The first way: AsFigure 2 and Figure 3 Both the first switch K1 and the second switch K2 are passive mechanical switches. The passive mechanical switch uses a jumper switch. Specifically, the passive mechanical switch is a manual mechanical switch, which realizes the function of the switch by connecting different ports with jumpers. The switch node uses an N-F interface, and the jumper uses an N-M jumper connection to realize the function of the passive switch.

[0033] For the control mechanism of the first switch K1, nodes 1 and 2 are connected with an N-M jumper to realize the connection of nodes 1 and 2 of switch K1 in the structure diagram, and nodes 1 and 3 are connected with an N-M jumper to realize the connection of nodes 1 and 3 of switch K1 in the structure diagram. For the control mechanism of the second switch K2, nodes 1 and 2 are connected with an N-M jumper to realize the connection of nodes 1 and 2 of switch K2 in the structure diagram, and nodes 3 and 4 are connected with an N-M jumper to realize the connection of nodes 3 and 4 of switch K2 in the structure diagram.

[0034] The second type: As Figure 4 Both the first switch K1 and the second switch K2 are electronic switches, and the electronic switches are electrically connected to the controller. The controller uses a 51 single-chip microcomputer.

[0035] The electronic switch supports remote control and is realized by using a 51 single-chip microcomputer STC15F204EA as the controller to control the radio frequency digital PIN two-stage single-pole double-throw switch mode. The control principle is that when the 51 single-chip microcomputer outputs 1, the digital control switch is opened, and when the 51 single-chip microcomputer outputs 0, the digital control switch is closed. The remote control data transmission is realized by transmitting and receiving 4 / 5G mobile communication signals through the wireless communication module DTU TD210 (RS485 interface).

[0036] In this embodiment, as Figure 5 When a single-mode input transmission mode needs to be carried out, nodes 1 and 2 in the first switch K1 are connected, and nodes 3 and 4 in the second switch K2 are connected. The 4G FDD1.8GHz single-mode signal is input from input port 1 and combined with other systems in the multi-band combiner 1. The 5G NR2.1GHz single-mode signal is input from input port 2 and combined with other systems in the multi-band combiner 2. The two single-mode signals are then combined through a hybrid and jointly output to the POI output ports ANT1 and ANT2, realizing the transmission of the 4G FDD1.8GHz single-mode signal and the 5G NR2.1GHz single-mode signal in the indoor distributed antenna system after being combined by the POI.

[0037] In this embodiment, as Figure 6, when the dual-mode input transmission mode needs to be performed, disconnect the node 1 from the node 2 and the node 3 in the first switch K1, connect the node 1 to the node 3 in the second switch K2, and input the 5G NR2.6GHz + 4G FDD1.8GHz dual-mode signal from the input port 1. After frequency division by the splitter, the 4G FDD1.8GHz is combined with other systems in the multi-band combiner 1, and the 5G NR2.6GHz is combined with other systems in the multi-band combiner 2. The two signals are then combined by the bridge and jointly output to the POI output ports ANT1 and ANT2, realizing the transmission of the 4G FDD1.8GHz + 5G NR2.6GHz dual-mode signal in the indoor distributed antenna system after being combined by the POI.

[0038] In this embodiment, as Figure 7 , when the MIMO input transmission mode needs to be performed, connect the node 1 to the node 3 in the first switch K1, connect the node 1 to the node 2 in the second switch K2, and disconnect the node 4 from the node 3 in the second switch K2. Input the 5GNR2.6GHz channel 1 signal from the input port 1 and perform secondary combination with other systems in the dual-band combiner 1 after the bridge. Input the 5GNR2.6GHz channel 2 signal from the input port 2 and perform secondary combination with other systems in the dual-band combiner 2 after the bridge. The channel 1 and channel 2 signals are respectively output to the POI output ports ANT1 and ANT2, realizing the MIMO 2T2R mode transmission of the 5G NR2.6GHz dual-channel signal in the indoor distributed antenna system after being combined by the POI.

[0039] In this embodiment, as Figure 8, when the MIMO + dual - mode input transmission mode needs to be carried out, connect node 1 and node 3 in the first switch K1, connect node 1 and node 2 in the second switch K2, and disconnect node 4 and node 3 in the second switch K2. The 5G NR 2.6 GHz channel 1 signal + 4G FDD 1.8 GHz is input from input port 1. Among them, after the 4G FDD 1.8 GHz signal is combined with other systems through a multi - frequency combiner and a hybrid coupler, a mixed - frequency signal is formed. The 5G NR 2.6 GHz channel 1 signal, the 4G FDD 1.8 GHz signal and the mixed - frequency signal of other systems are secondarily combined in the dual - frequency combiner 1 after the hybrid coupler. The 5G NR 2.6 GHz MIMO channel 2 signal is input from input port 2 and is secondarily combined with the 4G FDD 1.8 GHz signal and the mixed - frequency signal of other systems in the dual - frequency combiner 2 after the hybrid coupler. The POI output port ANT1 outputs the 5G NR 2.6 GHz channel 1 signal + 4G FDD 1.8 GHz signal + the mixed - frequency signal of other systems, and the POI output port ANT2 outputs the 5G NR 2.6 GHz channel 2 signal + 4G FDD 1.8 GHz signal + the mixed - frequency signal of other systems, realizing the MIMO 2T2R + dual - mode mode transmission of the 5G NR 2.6 GHz dual - channel signal + 4G FDD 1.8 GHz signal.

[0040] It should be noted that: This solution adopts the high - frequency signal secondary combination method, and the system insertion loss only increases by 1 dB. Moreover, the 5G NR 2.1 GHz band and the 4G FDD 1.8 GHz - 2.1 GHz dual - mode access device can also be customized according to actual needs.

[0041] The present utility model has been described by the above - mentioned related embodiments and drawings. However, the above - mentioned embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, modifications and equivalent arrangements included in the spirit and scope of the claims are all included in the scope of the present utility model.

Claims

1. A 5G multi-mode transmission POI combiner device, characterized in that: It includes a first input port, a second input port, a splitter, a first switch K1, a second switch K2, a first multi-frequency combiner, a second multi-frequency combiner, a bridge, a first dual-frequency combiner, a second dual-frequency combiner, a POI output port ANT1, and a POI output port ANT2; The first input port is electrically connected to the input end of the splitter, the output end of the splitter is electrically connected to the first input end of the second switch K2 and the input end of the first multi-frequency combiner respectively, the output end of the first multi-frequency combiner is electrically connected to the first input end of the bridge, the first output end of the second switch K2 and the first output end of the bridge are electrically connected to the two input ends of the first dual-frequency combiner respectively, and the output end of the first dual-frequency combiner is electrically connected to the POI output port ANT1; The second input port is electrically connected to the input end of the first switch K1, the first output end of the first switch K1 is electrically connected to the second input end of the second switch K2, the second output end of the second switch K2 is electrically connected to the input end of the second multi-frequency combiner, the output end of the second multi-frequency combiner is electrically connected to the second input end of the bridge, the second output end of the first switch K1 and the second output end of the bridge are electrically connected to the two input ends of the second dual-frequency combiner respectively, and the output end of the second dual-frequency combiner is electrically connected to the POI output port ANT2.

2. A 5G multi-mode transmission POI combiner device according to claim 1, characterized in that: The first switch K1 and the second switch K2 are both passive mechanical switches.

3. A 5G multi-mode transmission POI combiner device according to claim 2, characterized in that: The passive mechanical switch adopts a jumper switch.

4. A 5G multi-mode transmission POI combiner device according to claim 1, characterized in that: A controller is also included. The first switch K1 and the second switch K2 are both electronic switches, and the electronic switches are electrically connected to the controller.

5. A 5G multi-mode transmission POI combiner device according to claim 4, characterized in that: The controller adopts 51 single chip microcomputer.

6. A 5G multi-mode transmission POI combiner device according to claim 1, characterized in that: The splitter adopts a frequency divider with a third-order intermodulation suppression PIM value less than -155dBc@2*43dBm.

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