CN217363096U

CN217363096U - 5G single-channel frequency shift remote terminal

Info

Publication number: CN217363096U
Application number: CN202220220515.2U
Authority: CN
Inventors: 易宇升; 刘东洋
Original assignee: Jiangsu Tongding Broadband Co ltd
Current assignee: Jiangsu Tongding Broadband Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-09-02
Anticipated expiration: 2032-01-26

Abstract

The utility model provides a 5G single channel frequency shift remote terminal, include: the 5G single-path frequency shift remote terminal comprises a single chip microcomputer, an FPGA synchronous module, a clock chip, a frequency mixer and a multi-function device; the single chip microcomputer, the FPGA synchronous module, the clock chip and the frequency mixer are connected with one another in pairs, and the multi-function device is connected with the input end of the frequency mixer. The input end of the multifunctional device is connected with the 5G single-path frequency shift near-end machine through a feeder line, the multifunctional device comprises three output ends, 1.1G, 1.3G and the second path of 3.5G radio frequency output signals are respectively output, and the 1.1G radio frequency output signals and the 1.3G radio frequency output signals are correspondingly connected with the two input ends of the frequency mixer one by one. And the output end of the frequency mixer outputs a first path of 3.5G radio frequency output signal. The utility model has the advantages that: modular design, can install and remove. Low cost and short development period.

Description

5G single-channel frequency shift remote terminal

Technical Field

The utility model relates to a 5G communication equipment field, concretely relates to 5G single channel frequency shift remote terminal.

Background

With the large-scale construction of 5G, the high-frequency band propagation loss of the 5G network is large. The existing network original antenna feeder supports 2.7G at most and cannot meet the requirements of 3.5G and above of a 5G network. The existing network original single antenna feeder can not meet the MIMO (multiple input multiple output) requirement of the 5G network.

The traditional antenna feeder supports 2.7G at the highest, and in the 5G era, 5G is generally high in frequency and is not available. The line loss is too large at 3.5G high frequency by using the traditional cable and the traditional transmission mode, thereby wasting equipment power resources and causing high energy consumption.

At present, a 5G single-path frequency shift remote terminal self-research synchronization module needs a longer time period, has higher research and development cost, and has higher requirements on the research and development capabilities of engineering hardware and software.

SUMMERY OF THE UTILITY MODEL

In order to solve the original single set of antenna feeder of present net and can't satisfy 5G network MIMO (multiple input multiple output) demand, with traditional cable and traditional transmission mode line loss too big at 3.5G high frequency to extravagant equipment power resource leads to technical problem such as high energy consumption, the utility model discloses a realize through following technical scheme.

A 5G single-channel frequency-shifting remote, comprising:

the 5G single-path frequency shift remote terminal comprises a single chip microcomputer, an FPGA synchronous module, a clock chip, a frequency mixer and a multi-function device; the single chip microcomputer, the FPGA synchronous module, the clock chip and the frequency mixer are connected with one another in pairs, and the multi-function device is connected with the input end of the frequency mixer.

Furthermore, the input end of the multiplexer is connected with the 5G single-path frequency shift near-end machine through a feeder line, the multiplexer comprises three output ends which respectively output 1.1G, 1.3G and a second path of 3.5G radio frequency output signals, wherein the 1.1G and 1.3G radio frequency output signals are connected with two input ends of the mixer in a one-to-one correspondence manner.

Further, the output end of the mixer outputs a first path of 3.5G radio frequency output signal.

Furthermore, the FPGA synchronization module is a TD-LTE baseband synchronization module of Mini PCI-E specification.

Furthermore, the FPGA synchronization module is used for completing cell search and wireless signaling processing of the TD-LTE wireless network to obtain TDD uplink and downlink time slots and uplink and downlink time slot ratio information, and outputting uplink and downlink time slot indication signals through a GPIO interface.

Furthermore, the FPGA synchronization module supports the data card function of TD-LTE, and realizes the 4G internet data transmission function.

Furthermore, the FPGA synchronization module and the client application docking interface are standard Mini PCI-E interfaces.

Further, the 5G single-path frequency shift near-end machine supplies power to the 5G single-path frequency shift far-end machine through feeding.

Further, the 5G single-path frequency shift remote terminal integrates a dual-polarized antenna.

Further, a POE external power supply mode is adopted to supply power to the 5G single-path frequency shift remote terminal.

The utility model has the advantages of: modular design, can install and remove. Low cost and short development period.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 shows an internal structural schematic diagram of a 5G single-channel frequency-shift remote according to embodiment 1 of the present invention.

Fig. 2 is a timing diagram of DL/UL measured at an allocation ratio of 1:1 in uplink and downlink.

Fig. 3 is a schematic diagram of GPIO output waveforms of the synchronization module when the uplink and downlink configurations are in a time slot configuration ratio of 1:3 and the special subframe structure is 7.

Detailed Description

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

Example 1

Fig. 1 is a schematic diagram of an internal structure of a 5G single-channel frequency-shift remote.

The 5G single-path frequency shift remote terminal comprises a single chip microcomputer, an FPGA synchronous module, a clock chip, a frequency mixer and a multi-function device; the input end of the multiplexer is connected with the 5G single-path frequency shift near-end machine through a feeder line. The multiplexer comprises three output ends which respectively output 1.1G, 1.3G and a second path of 3.5G radio frequency output signals, wherein the 1.1G and 1.3G radio frequency output signals are connected with two input ends of the frequency mixer one by one. The mixer, the single chip microcomputer, the clock chip and the FGPA synchronous module are connected with each other pairwise, and the output end of the mixer outputs a first path of 3.5G radio frequency output signal.

In this embodiment, the 5G single-channel frequency-shift remote terminal integrates a dual-polarized antenna.

It should be noted that, in this embodiment 1, the 5G single-channel frequency shift near-end device supplies power to the 5G single-channel frequency shift far-end device through power feeding, or supplies power to the 5G single-channel frequency shift far-end device by using a POE external power supply mode.

The FPGA synchronization module is a TD-LTE baseband synchronization module with Mini PCI-E specification. The module can automatically complete cell search and wireless signaling processing of the TD-LTE wireless network, obtain accurate information such as TDD uplink and downlink time slot timing, uplink and downlink time slot ratio and the like, and output uplink and downlink time slot indication signals through the GPIO interface. Meanwhile, the FPGA synchronization module supports the data card function of TD-LTE and can realize the 4G internet data transmission function. The module and client application interface is a standard Mini PCI-E interface.

The utility model provides a various implementation methods such as chip, singlechip, FPGA can be adopted to FPGA synchronization module, clock chip, singlechip, because its concrete hardware implementation form is the ordinary selection of various prior art, no longer gives unnecessary details here.

The utility model provides a pair of 5G single pass remote transmitter frequently shifts, near-end machine feed-in 2 way 5G signals frequently shifting, near-end machine frequently shifts the signal of information source feed-in to intermediate frequency signal frequently shifting, realizes single port output 2 way 5G signals, transmits through single feeder, locates to resume 2 way intermediate frequency signals 2X 2 MIMO's 5G signals frequently shifting remote transmitter.

The technical characteristics of the FPGA synchronization module are as follows:

example of the relationship between GPIO output and uplink and downlink timeslots:

1. as shown in fig. 2, this is a timing chart of DL/UL actually measured at an arrangement ratio of 1:1 in uplink downlink configuration.

2. As shown in fig. 3, when the uplink downlink configuration is a time slot configuration ratio of 1:3 and the special subframe structure is 7, the GPIO output waveform of the synchronization module is shown.

Wherein, the channel 1 is synchronous 10ms pulse indication;

channel 2 is a synchronization status indication;

the channel 3 is a synchronous uplink time slot indication;

channel 4 is the synchronous downlink timeslot indicator.

It should be noted that:

in the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Moreover, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments, not other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several systems, several of these systems may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A 5G single-channel frequency-shifting remote, comprising:

2. A5G single-channel frequency-shifting remote terminal according to claim 1,

the input end of the multifunctional device is connected with the 5G single-path frequency shift near-end machine through a feeder line, the multifunctional device comprises three output ends, 1.1G, 1.3G and the second path of 3.5G radio frequency output signals are respectively output, and the 1.1G radio frequency output signals and the 1.3G radio frequency output signals are correspondingly connected with the two input ends of the frequency mixer one by one.

3. A5G single-channel frequency-shifting remote according to claim 1 or 2,

and the output end of the frequency mixer outputs a first path of 3.5G radio frequency output signal.

4. A5G single-channel frequency-shifting remote according to claim 1 or 2,

the FPGA synchronization module is a TD-LTE baseband synchronization module with Mini PCI-E specification.

5. The 5G single-channel frequency-shifting remote terminal according to claim 4,

the FPGA synchronization module is used for completing cell search and wireless signaling processing of the TD-LTE wireless network to obtain TDD uplink and downlink time slots and uplink and downlink time slot ratio information, and outputting uplink and downlink time slot indication signals through a GPIO interface.

6. A5G single-channel frequency-shifting remote according to claim 1 or 2,

the FPGA synchronization module supports the data card function of TD-LTE and realizes the 4G internet data transmission function.

7. A5G single-channel frequency-shifting remote according to claim 1 or 2,

the FPGA synchronization module and the client application docking interface are standard Mini PCI-E interfaces.

8. A5G single-channel frequency-shifting remote according to claim 2,

and the 5G single-path frequency shift near-end machine supplies power to the 5G single-path frequency shift far-end machine through feeding.

9. A5G single-channel frequency-shifting remote according to claim 1 or 2,

and the 5G single-path frequency shift remote terminal integrates a dual-polarized antenna.

10. A5G single-channel frequency-shifting remote terminal according to claim 1 or 2,

and a POE external power supply mode is adopted to supply power to the 5G single-path frequency shift remote terminal.