CN112260709B

CN112260709B - POI power feedback device and method

Info

Publication number: CN112260709B
Application number: CN201910596943.8A
Authority: CN
Inventors: 黄磊; 谢瑞华; 罗伟
Original assignee: Prologis Communication Technology Suzhou Co Ltd
Current assignee: Prologis Communication Technology Suzhou Co Ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2023-02-28
Anticipated expiration: 2039-07-03
Also published as: CN112260709A

Abstract

The invention discloses a POI power feedback device and a method thereof, wherein the device comprises at least one input port with an idle POI input end and at least one output port with an idle POI output end, and the input ports and the output ports are correspondingly matched one by one and then connected through cables. The invention utilizes a power feedback method to connect redundant output ports and input ports of the POI by cables in a one-to-one correspondence mode, and replaces loads by the cables, thereby reducing the cost of the POI and lightening the weight.

Description

POI power feedback device and method

Technical Field

The invention relates to a multi-system combiner platform, in particular to a POI power feedback device and a POI power feedback method.

Background

A multisystem access platform, also called Point Of Interface (POI for short), is a device that outputs a plurality Of mobile signals in a downlink combination way and receives uplink signals in a shunt way to a corresponding receiver in a multisystem shared distribution link. Any two frequency bands or a plurality of specific frequency bands are selected according to different application scenes for combining and shunting, so that the distribution sharing of a plurality of systems is completed, and the purposes of fully utilizing resources and saving investment are achieved. The main function is to provide isolation and separation-combination paths among different systems, solve the transmission interference among the systems, prevent the blockage introduced by a receiving path and effectively improve the transmission intermodulation index of an information source

In a conventional POI design, redundant input and output ports are blocked with a load, where the input ports are blocked with a small load and the output ports are blocked with a power load. Because the power load is bulky and expensive, a large amount of heat temperature rise can be generated while absorbing redundant power, heat dissipation teeth are often required to be added, and any load occupies a certain space, so that the POI volume is increased.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a POI power feedback device and a POI power feedback method.

In order to achieve the purpose, the invention provides the following technical scheme: a POI power feedback device comprises at least one input port with an idle POI input end and at least one output port with an idle POI output end, wherein the idle input port and the idle output port are correspondingly paired in a one-to-one mode, and the paired input port and the paired output port are connected through a cable.

Preferably, the POI comprises a bridge, the input and output ports being input and output ports of the bridge, respectively.

Preferably, the POI includes a plurality of combiners and at least one bridge connected to an antenna, the output port is an output port of the bridge, and the input port is an input port of the same combiner or a different combiner connected to the bridge.

Preferably, the POI includes a plurality of combiners and a plurality of bridges connected to the antenna, the output port is an output port of the bridge, some of the input ports are input ports of the combiners connected to the bridges, and some of the input ports are input ports of the bridges.

Preferably, the input port and the output port which are matched with redundant idle ports are connected with loads.

The invention also discloses another technical scheme: a POI power feedback method, comprising: and carrying out one-to-one corresponding pairing on at least one input port with idle POI input ends and at least one output port with idle POI output ends, and then connecting the paired input ports and output ports by adopting cables.

Preferably, the POI comprises a bridge, and an input end and an output end of the bridge respectively have at least one idle input port and at least one idle output port, and the input port and the output port are connected in a one-to-one correspondence.

Preferably, the POI comprises a plurality of combiners and at least one bridge connected with an antenna, the output end of the bridge is provided with a plurality of idle output ports, the plurality of combiners are provided with a plurality of idle input ports, and the input ports and the output ports are connected by cables in a one-to-one correspondence manner.

Preferably, the POI includes a plurality of combiners and a plurality of bridges connected to the antennas, the plurality of bridges have a plurality of idle output ports and at least one input port, the plurality of combiners have a plurality of idle input ports, the output ports of some bridges are connected to the input ports of the combiners connected thereto in a one-to-one correspondence, and the output ports of some bridges are connected to their own input ports in a one-to-one correspondence.

Preferably, redundant input ports and output ports which are idle are connected with loads.

The invention has the beneficial effects that: the invention uses the power feedback method to correspond the redundant output ports of POI and the input ports one by one, and the output ports are connected by cables, so that the Transmission (TX) signals of the output ports are transmitted back to the input ports until the signal power is completely absorbed. The cost is significantly reduced because the unnecessary input and output loads of the POI are replaced by cables, and the elements are greatly reduced; and since the elements are greatly reduced, the volume and weight of the POI are reduced correspondingly. In addition, due to the power feedback, link insertion loss is reduced to a certain extent.

Drawings

FIG. 1 is a schematic structural view of an unconnected cable of POI embodiment 1 of the present invention;

FIG. 2 is a schematic view of the construction of a connecting cable according to embodiment 1 of the POI;

FIG. 3 is a schematic structural view of an unconnected cable of POI embodiment 2 of the present invention;

fig. 4 is a schematic diagram of the structure of the connecting cable of POI embodiment 2 of the present invention.

Reference numerals:

1. output port, 2, input port, 3, cable, 4, combiner, 5, bridge.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the present invention.

According to the POI power feedback device and method disclosed by the invention, redundant output ports of the POI are connected with the input ports after being correspondingly matched one by one, redundant signals of the output ports are fed back to the input ports to be completely absorbed by using a power feedback method, and the high-power load design of the POI is reduced, so that the cost of the POI is reduced, the weight is lightened, and the reliability of a product is improved.

Referring to fig. 1 to 4, a POI power feedback device disclosed in the present invention includes at least one output port 1 idle at the output end of the POI and at least one input port 2 idle at the input end of the POI, wherein the input ports 2 and the output ports 1 are paired in a one-to-one correspondence, and the paired ports are connected by a cable 3.

There are many alternatives to the implementation of the POI, and the inventive solution is applicable to all POIs with at least one redundant output port 1 and at least one redundant input port 2. In an embodiment 1, as shown in fig. 1, the POI specifically includes a plurality of combiners 4 and at least one bridge 5 connected to an antenna, an input end of each combiner 4 receives a signal in at least one frequency band, output ends of the combiners are connected to input ends of the bridge 5, and an output end of the bridge 5 is connected to the antenna, where an output port of an output end of the bridge 5 is an output port 1 of the POI where the output end is idle, and input ports of inputs of the plurality of combiners 4 are input ports 2 of the POI where the input end is idle.

In this embodiment 1, the POI specifically includes four combiners 4 and one bridge 5, wherein an output end of the bridge 5 has two idle output ports 1, the four combiners 4 have two idle input ports 2, the two input ports 2 are respectively disposed on the two combiners 4, the two idle output ports 1 of the bridge 5 are paired with the two idle input ports 2 of the combiner 4 in a one-to-one correspondence manner, and the paired output ports are respectively connected by cables 3, as shown in fig. 2, so that the TX signal of each idle output port 1 is returned to the input port 2 correspondingly connected to the combiner 4, in this process, the returned signal passes through loss, line loss, insertion loss of a filter, and the like of the bridge 5, so that the power of the signal re-output through the bridge 5 is small and almost absorbed, and the remaining unabsorbed signal is output from the other two output ports 1 of the bridge 5 or is returned to be completely absorbed again. Of course, the idle input ports 2 may be on the same combiner 4.

Alternatively, the POI may comprise only one bridge 5, wherein the output port of the bridge 5 with no input is the output port 1 with no input of the POI, and the input port of the bridge 5 with no input is the input port 2 with no input of the POI. And pairing the idle input port and the idle output port of the bridge 5, and connecting the input port and the idle output port by using the cable 3 to realize power feedback absorption.

As another specific embodiment 2, as shown in fig. 3, the POI includes a plurality of combiners 4 and a plurality of bridges 5 connected to antennas, wherein output ends of the combiners 4 are connected to an input end of one bridge 5, and an output end of the bridge 5 is connected to an antenna port; there is also an electric bridge 5 with an input terminal directly connected to the base station signal (i.e. not connected to the combiner 4) and an output terminal connected to the antenna port.

As shown in fig. 3, in this embodiment 2, the POI includes four combiners 4 and two bridges 5, wherein output terminals of the four combiners 4 are connected to an input terminal of one bridge 5 (for convenience of description, the bridge is defined as a bridge 51), an output terminal of the bridge 51 is connected to an antenna port, an input terminal of the other bridge (i.e., defined as a bridge 52) is connected to a base station signal, and an output terminal is connected to the antenna port.

The output end of the bridge 51 has three idle output ports 1, the four combiners 4 connected to the bridge 51 have two idle input ports 2, the two idle output ports 1 of the bridge 51 are connected with the two input ports 2 of the combiners 4 in a one-to-one correspondence manner, and the extra 1 output port is connected with a load. The output end of the bridge 2 has 3 idle output ports 1, the input end has 1 idle input port 2, one output port 1 of the bridge 2 is correspondingly connected with the input port 2, and the other two output ports 1 are connected with a load, as shown in fig. 4.

Corresponding to the above device, the POI power feedback method disclosed in the present invention comprises: and carrying out one-to-one corresponding pairing on at least one input port 2 with idle POI input ends and at least one output port 1 with idle POI output ends, and then connecting the paired input ports 2 and the paired output ports 1 by adopting cables 3.

As described in the above device, there may be various alternatives for implementing the POI, and when the POI specifically includes at least one bridge 5, the output port of the bridge 5 with the idle output end is the output port 1 with the idle output end of the POI, and the input port of the bridge 5 with the idle input end is the input port 1 with the idle input end of the POI. And pairing the idle input port 2 and the idle output port 1 of the bridge 5, and connecting the input port and the output port by using a cable 3 to realize power feedback absorption.

When the POI specifically includes a plurality of combiners 4 and at least one bridge 5 connected to the antenna, and the output ends of the combiners 4 are all connected to one bridge 5, wherein the output port of the bridge 5 with the idle output end is the output port 1 with the idle output end of the POI, the input ports of the plurality of combiners 4 with the idle input ends are the input ports 2 with the idle input ends of the POI, the input ports 2 with the idle output ports 1 of the bridges 5 and the idle output ports 1 of the combiners 4 are paired and connected by the cable 3, and the power feedback absorption is realized.

When the POI specifically includes a plurality of combiners 4 and a plurality of bridges 5 connected to the antenna, wherein output ends of the plurality of combiners 4 are all connected to an input end of one bridge 5, and an output end of the bridge 5 is connected to an antenna port; there is also an electric bridge 5 with an input terminal directly connected to the base station signal (i.e. not connected to the combiner) and an output terminal connected to the antenna port. The output ports of the bridge 5 (e.g., the bridge 51) connected to the combiner 4 are connected to the input ports of the combiner 4 in a one-to-one correspondence, and the output ports of the bridge 5 (e.g., the bridge 52) not connected to the combiner are connected to the input ports of the bridge 5 itself in a one-to-one correspondence, so as to realize power feedback absorption.

The specific structures and principles of the three embodiments of the POI described above can be referred to the above description. And will not be described in detail herein.

Therefore, the scope of the present invention should not be limited to the disclosure of the embodiments, but includes various alternatives and modifications without departing from the scope of the present invention, which is defined by the claims of the present patent application.

Claims

1. The POI power feedback device is characterized by comprising at least one input port with an idle POI input end and at least one output port with an idle POI output end, wherein the idle input port and the idle output port are matched in a one-to-one correspondence mode, and the matched input port and the matched output port are connected through a cable.

2. The apparatus of claim 1 wherein said POI comprises a bridge, and said input and output ports are input and output ports, respectively, of the bridge.

3. The apparatus of claim 1, wherein the POI comprises a plurality of combiners and at least one bridge connected to an antenna, the output port is an output port of the bridge, and the input port is an input port of the same combiner or a different combiner connected to the bridge.

4. The apparatus of claim 1, wherein the POI comprises a plurality of combiners and a plurality of bridges connected to the antennas, the output ports are output ports of the bridges, some of the input ports are input ports of the combiners connected to the bridges, and some of the input ports are input ports of the bridges.

5. The device according to any one of claims 1 to 4, wherein the redundant input port and output port are connected with a load.

6. A POI power feedback method, the method comprising: and carrying out one-to-one corresponding pairing on at least one input port with idle POI input ends and at least one output port with idle POI output ends, and then connecting the paired input ports and output ports by adopting cables.

7. The method of claim 6, wherein the POI comprises a bridge having at least one input port and at least one output port free at its input and output ends, respectively, and wherein the input and output ports are cabled in a one-to-one correspondence.

8. The method of claim 6, wherein the POI comprises a plurality of combiners and at least one bridge with an antenna, wherein the output end of the bridge has a plurality of idle output ports, and the plurality of combiners have a plurality of idle input ports, and the input ports and the output ports are connected in a one-to-one correspondence.

9. The method of claim 6, wherein the POI comprises a plurality of combiners and a plurality of bridges connected to the antennas, the plurality of bridges having a plurality of idle output ports and at least one input port, the plurality of combiners having a plurality of idle input ports, the output ports of some of the bridges being connected to the input ports of the combiners connected thereto in a one-to-one correspondence, and the output ports of some of the bridges being connected to their own input ports in a one-to-one correspondence.

10. The method according to any one of claims 6 to 9, wherein redundant pairs of said idle input and output ports are connected to a load.