CN212727434U

CN212727434U - 5G frequency conversion distribution system covers end

Info

Publication number: CN212727434U
Application number: CN202021677778.3U
Authority: CN
Inventors: 张晖; 宋键; 李平; 翁伟佳
Original assignee: Guangzhou Hanyun Information Technology Co ltd
Current assignee: Guangzhou Hanyun Information Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-03-16
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a 5G frequency conversion distribution system covers end, intermediate frequency filter connects between intermediate frequency input/output port and mixer, the mixer is connected with fourth radio frequency switch's base end, fourth radio frequency switch's normally closed end is connected with third radio frequency switch's normally closed end, fourth radio frequency switch's normally open end is connected with second radio frequency switch's normally open end, third radio frequency switch's base end is connected with radio frequency filter, radio frequency filter and amplification tube coupling, third radio frequency switch's normally open end is connected with first radio frequency switch's normally open end, first radio frequency switch's base end is used for and covers antenna interface connection, first radio frequency switch's normally closed end is connected with second radio frequency switch's normally closed end, second radio frequency switch's base end and amplification tube coupling. The utility model discloses under the prerequisite that reaches and conventional scheme performance, make it can reduce the material cost that covers the unit with less device relatively to reduce the whole cost that covers the unit, improve frequency conversion system's price/performance ratio.

Description

5G frequency conversion distribution system covers end

Technical Field

The utility model relates to a 5G technical field, more specifically say, in particular to 5G frequency conversion distribution system covers end.

Background

The 5G mobile communication network has the obvious technical advantages of high speed, ubiquitous performance, low power consumption and low time delay, but the requirement is difficult to meet in high-capacity indoor wireless signal coverage, the operation quality is not high, and the experience effect is not good. At present, 80% of the traffic of mobile communication is generated indoors. Therefore, how to develop a new generation indoor distribution system to improve the indoor wireless coverage quality of the 5G mobile communication network has become a key common problem to be solved urgently in 5G network scale networking.

In the initial stage of networking coverage of the 5G network, due to the fact that the number of base stations is limited, site resources are tight, indoor signal coverage is mainly covered by hot spots and key areas, and a domestic and foreign 5G indoor distribution system mainly adopts a digital optical fiber distribution system of each 5G base station master equipment manufacturer as a main solution and mainly adopts 4T4R in configuration. The system can meet the access and coverage requirements of key business scenes currently. However, with the large-scale 5G networking and the popularization of terminals, especially the rapid growth of 5G vertical applications, the wireless coverage requirements for common commercial buildings and social mass-event scenes face explosive growth, and the currently adopted high-capacity hotspot coverage scheme and system cannot meet the coverage requirements of most scenes in terms of network deployment and network construction cost performance.

At present, in most indoor common scenes, during the network infrastructure of 3G and 4G, a great number of passive indoor subsystems are already deployed, as shown in fig. 1, the passive indoor subsystems mainly comprise a high-power information source, a combiner, a power division coupler, a feeder line and an antenna, and are low in manufacturing cost and high in reliability. 5G-oriented indoor coverage, mobile, telecom and telecom 5G TDD systems are also starting to carry out the push work of indoor branch information sources. At present, the passive room division has the defects that only one channel is designed for cable arrangement in the prior art, so that the future requirements cannot be met in the aspect of 5G access capacity, and if a set of new indoor distribution system is completely built, the property coordination and construction difficulty is high, and the manufacturing cost is high. Preferably, the existing feeder line and distribution network can be utilized, and the access, transmission and coverage of 2 x 2MIMO of the 5G signal are realized by an innovative technical means, so that the coverage capacity is greatly improved, and the 5G application experience of indoor users is supported.

For the application scheme, some radio frequency conversion systems have been proposed in the industry at present, as shown in fig. 2, a 5G single channel or dual channel signal is moved to an idle frequency band suitable for transmission of the current indoor distribution system through frequency conversion, then at an antenna coverage end, the frequency is restored, and transmission coverage is performed through a new antenna, so that the transmission of the 5G dual channel signal in the existing single channel indoor passive distribution network is realized. The current frequency conversion system consists of a conventional 5G RRU, an access host, an access end combiner and a covering unit. The covering unit is used for replacing the existing indoor antenna, the using amount is large, the manufacturing cost of the covering unit determines the whole manufacturing cost of the frequency conversion covering system, the existing conventional 5G covering unit adopts circuits such as frequency conversion, filtering, amplification and the like which are independently carried out by an uplink channel and a downlink channel, the cost is difficult to reach a lower level, and the popularization and mass commercial use of the scheme are greatly hindered.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 5G frequency conversion distribution system covers end and control method to overcome the defect that prior art exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A5G frequency conversion distribution system cover terminal comprises a first radio frequency switch, a second radio frequency switch, a third radio frequency switch, a fourth radio frequency switch, a radio frequency filter, an intermediate frequency filter, a mixer and an amplifying tube, wherein the intermediate frequency filter is connected between an intermediate frequency input/output port and the mixer, the mixer is connected with a base end S40 of the fourth radio frequency switch, a normally closed end S41 of the fourth radio frequency switch is connected with a normally closed end S31 of the third radio frequency switch, a normally open end S42 of the fourth radio frequency switch is connected with a normally open end S22 of the second radio frequency switch, a base end S30 of the third radio frequency switch is connected with the radio frequency filter, the radio frequency filter is connected with the amplifying tube, a normally open end S32 of the third radio frequency switch is connected with a normally open end S12 of the first radio frequency switch, the base end S10 of the first radio frequency switch is used for being connected with a cover antenna interface, and a normally closed end S11 of the first radio frequency switch is connected with a normally closed end S21 of the second radio frequency, the base end S20 of the second rf switch is connected to the amplification tube.

Compared with the prior art, the utility model has the advantages of: the utility model discloses an implement, under the prerequisite that reaches and conventional scheme performance, make it can reduce the material cost of covering the unit with less device relatively to reduce the whole cost of covering the unit, improve frequency conversion system's price/performance ratio.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a conventional 5G frequency conversion distribution system.

Fig. 2 is a schematic diagram of a coverage end of a conventional 5G frequency conversion distribution system.

Fig. 3 is a schematic diagram of a 5G frequency conversion distribution system coverage end of the present invention.

Fig. 4 is the down signal of 5G frequency conversion distribution system cover end goes to the graph.

Fig. 5 is the upward signal of 5G frequency conversion distribution system overlay end goes to the graph.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 3, the present embodiment discloses a 5G frequency conversion distribution system overlay terminal, including a first rf switch, a second rf switch, a third rf switch, a fourth rf switch, a rf filter, an if filter, a mixer and an amplifier tube, wherein the if filter is connected between the if input/output port and the mixer, the mixer is connected to a base terminal S40 of the fourth rf switch, a normally closed terminal S41 of the fourth rf switch is connected to a normally closed terminal S31 of the third rf switch, a normally open terminal S42 of the fourth rf switch S4 is connected to a normally open terminal S22 of the second rf switch, a base terminal S30 of the third rf switch is connected to the rf filter, the rf filter is connected to the amplifier tube, a normally open terminal S32 of the third rf switch is connected to a normally open terminal S12 of the first rf switch, a base terminal S10 of the first rf switch is used for interfacing with an overlay antenna, a normally closed terminal S11 of the first rf switch is connected to a normally closed terminal S21 of the second rf switch, the base end S20 of the second rf switch is connected to the amplification tube.

In the embodiment of the present application, the first rf switch, the second rf switch, the third rf switch, the fourth rf switch, the rf filter, the if filter, the mixer, and the amplifier tube may be selected from components in the prior art.

Referring to fig. 4 and 5, the present invention further provides a method for controlling the coverage end of the 5G frequency conversion distribution system, which includes:

when in the downlink working time slot, as shown in fig. 4, the base end S10 and the normally-closed end S11 of the first rf switch are turned on, the base end S20 and the normally-closed end S21 of the second rf switch are turned on, the base end S30 and the normally-closed end S31 of the third rf switch are turned on, the base end S40 and the normally-closed end S41 of the fourth rf switch are turned on, and the signal trend is as shown by an arrow in the figure, that is, a downlink intermediate frequency signal enters from the intermediate frequency filter and passes through the mixer, enters the fourth rf switch and the third rf switch, then enters the rf filter and the amplifier tube in sequence, and finally reaches the coverage antenna interface through the second rf switch and the first rf switch;

when in the uplink working time slot, as shown in fig. 5, the base end S10 and the normally open end S12 of the first rf switch are turned on, the base end S20 and the normally open end S22 of the second rf switch are turned on, the base end S30 and the normally open end S32 of the first rf switch are turned on, the base end S40 and the normally open end S42 of the first rf switch are turned on, and the direction of the signal is as shown by the arrow in the figure, that is, the uplink signal enters from the coverage antenna interface and sequentially passes through the first rf switch and the third rf switch to enter the rf filter, then passes through the amplification tube to reach the second rf switch, then enters the mixer through the fourth rf switch, and finally passes through the if filter to be output to the if input/.

Through the utility model discloses an implement, under the prerequisite that reaches with conventional scheme performance, make it can reduce the material cost of covering the unit with less device relatively to reduce the whole cost of covering the unit, improve frequency conversion system's price/performance ratio.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims

1. A5G frequency conversion distribution system cover terminal is characterized by comprising a first radio frequency switch, a second radio frequency switch, a third radio frequency switch, a fourth radio frequency switch, a radio frequency filter, an intermediate frequency filter, a mixer and an amplifying tube, wherein the intermediate frequency filter is connected between an intermediate frequency input/output port and the mixer, the mixer is connected with a base end S40 of the fourth radio frequency switch, a normally closed end S41 of the fourth radio frequency switch is connected with a normally closed end S31 of the third radio frequency switch, a normally open end S42 of the fourth radio frequency switch is connected with a normally open end S22 of the second radio frequency switch, a base end S30 of the third radio frequency switch is connected with the radio frequency filter, the radio frequency filter is connected with the amplifying tube, a normally open end S32 of the third radio frequency switch is connected with a normally open end S12 of the first radio frequency switch, a base end S10 of the first radio frequency switch is used for being connected with a cover antenna interface, and a normally closed end S11 of the first radio frequency switch is connected with a normally closed end S21 of the second radio frequency switch, the base end S20 of the second rf switch is connected to the amplification tube.