WO2024077962A1

WO2024077962A1 - Microwave transmission system and method, and storage medium

Info

Publication number: WO2024077962A1
Application number: PCT/CN2023/095597
Authority: WO
Inventors: 吴华; 杨旭; 李雷鸣
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-10-09
Filing date: 2023-05-22
Publication date: 2024-04-18
Also published as: CN117896224A

Abstract

Embodiments of the present disclosure relate to the technical field of communications, and provide a microwave transmission system and method, and a storage medium. The system comprises: a primary antenna configured to transmit a first uplink signal and receive a primary downlink signal; a diversity antenna configured to transmit a second uplink signal and receive a diversity downlink signal; a primary radio frequency unit set connected to a modulation/demodulation unit set and the primary antenna, and configured to transmit the first uplink signal acquired from the modulation/demodulation unit set to the primary antenna and transmit the primary downlink signal acquired from the primary antenna to the modulation/demodulation unit set; and a diversity radio frequency unit set connected to the modulation/demodulation unit set and the diversity antenna, and configured to transmit the second uplink signal acquired from the modulation/demodulation unit set to the diversity antenna and transmit the diversity downlink signal acquired from the diversity antenna to the modulation/demodulation unit set, wherein the number of radio frequency units of the primary radio frequency unit set is the same as the number of radio frequency units of the diversity radio frequency unit set, and the width of a received carrier is twice or more than the width of a transmitted carrier.

Description

Microwave transmission system, method and storage medium

Technical Field

The present disclosure relates to the field of communication technology, and in particular to a microwave transmission system, method and storage medium.

Background technique

In the field of microwave transmission, spatial diversity protection is a common protection system. In recent years, with the increase in transmission capacity, multiple transmission and multiple reception has become the basic configuration of microwave transmission spatial diversity protection. However, in the multiple transmission and multiple reception system, the RF splitter and combiner equipment has brought many challenges to the system gain and cost.

Traditional multi-transmit and multi-receive systems often use N+N spatial diversity systems, where N represents the number of transmitted and received carriers, and "+N" represents redundant design. However, this system has equipment redundancy and high equipment costs; and the multi-transmit and multi-receive frequency points of this system are concentrated under the same antenna for splitting and combining or carrier aggregation, resulting in a large loss of system gain.

Summary of the invention

The main purpose of the embodiments of the present disclosure is to provide a microwave transmission system, method and storage medium, aiming to solve the problems of high equipment cost and large gain loss in traditional multi-transmitter and multi-receiver microwave transmission systems.

In a first aspect, an embodiment of the present disclosure provides a microwave transmission system, the system comprising:

Modem unit group;

a main antenna, configured to transmit a first uplink signal and receive a main downlink signal;

a diversity antenna, configured to transmit a second uplink signal and receive a diversity downlink signal;

a main RF unit group, respectively connected to the modem unit group and the main antenna for communication, and configured to transmit the first uplink signal obtained from the modem unit group to the main antenna, and to transmit the main downlink signal obtained from the main antenna to the modem unit group;

A diversity radio frequency unit group is respectively connected to the modem unit group and the diversity antenna for communication, and is configured to transmit the second uplink signal obtained from the modem unit group to the diversity antenna, and transmit the diversity downlink signal obtained from the diversity antenna to the modem unit group;

The number of RF units in the main RF unit group and the diversity RF unit group is the same, and the receiving carrier width of the main RF unit group and the diversity RF unit group is 2 times or more than 2 times the transmitting carrier width.

In a second aspect, the embodiments of the present disclosure further provide a microwave transmission method, which is applied to a microwave transmission system, and the method includes:

When the modulation and demodulation unit group receives multiple groups of uplink data to be transmitted, the modulation and demodulation unit group is controlled to modulate the uplink data to obtain multiple uplink carriers;

Control the modem unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group, and transmit the first uplink carrier group to the main radio frequency unit group, and transmit the second uplink carrier group to the diversity radio frequency unit group, wherein the first uplink carrier group and the second uplink carrier group have the same number of carriers, and the number of carriers in the first uplink carrier group is the same as the number of radio frequency units in the main radio frequency unit group;

Controlling the main radio frequency unit group to convert the first uplink carrier group into the first uplink signal, and transmitting the first uplink signal to the main antenna, so that the main antenna transmits the first uplink signal;

The diversity radio frequency unit group is controlled to convert the second uplink carrier group into the second uplink signal, and the second uplink signal is transmitted to the diversity antenna, so that the diversity antenna transmits the second uplink signal.

In a third aspect, an embodiment of the present disclosure further provides a storage medium, which is configured as a computer-readable storage, and is characterized in that the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any microwave transmission method provided in the specification of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic structural diagram of a microwave transmission system provided by an embodiment of the present disclosure;

FIG2 is a schematic diagram of a scenario of sending and receiving signals in a microwave transmission system provided by an embodiment of the present disclosure;

FIG3 is a schematic diagram of a flow chart of a microwave transmission method provided by an embodiment of the present disclosure;

FIG4 is a schematic block diagram of the structure of a microwave transmission device provided in an embodiment of the present disclosure.

Detailed ways

The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations/steps, nor must they be executed in the order described. For example, some operations/steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

It should be understood that the terms used in this disclosure are only for the purpose of describing specific embodiments and are not intended to limit the disclosure. As used in this disclosure and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

Embodiments of the present disclosure provide a microwave transmission system, method, and storage medium.

In conjunction with the accompanying drawings, some embodiments of the present disclosure are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1 , which is a schematic diagram of the structure of a microwave transmission system provided in an embodiment of the present disclosure.

As shown in Figure 1, the system includes:

Modem unit group 1;

A main antenna 2 is configured to transmit a first uplink signal and receive a main downlink signal;

Diversity antenna 3, configured to transmit a second uplink signal and receive a diversity downlink signal;

The main radio frequency unit group 4 is respectively connected to the modem unit group 1 and the main antenna 2 for communication, and is configured to transmit the first uplink signal obtained from the modem unit group 1 to the main antenna 2, and to transmit the main downlink signal obtained from the main antenna 2 to the modem unit group 1;

The diversity RF unit group 5 is respectively connected to the modem unit group 1 and the diversity antenna 3 for communication, and is configured to transmit the second uplink signal obtained from the modem unit group 1 to the diversity antenna 3, and to transmit the diversity signal obtained from the diversity antenna 3 to the diversity antenna 3. The downlink signal is transmitted to the modem unit group 1;

The number of RF units in the main RF unit group 4 and the diversity RF unit group 5 is the same, and the receiving carrier width of the main RF unit group 4 and the diversity RF unit group 5 is twice or more than twice the transmitting carrier width.

In some implementations, the microwave transmission system may adopt a frequency division duplex (FDD) mode, or may adopt other modes as required by circumstances, which are not limited herein.

It can be understood that, since the number of RF units in the main RF unit group 4 and the diversity RF unit group 5 is the same, the main RF unit group 4 and the diversity RF unit group 5 can receive and process uplink signals with the same number of carriers.

When the modem unit group 1 obtains the digital signal to be transmitted from a signal source such as a network port that is communicatively connected to the modem unit group 1, the modem unit group 1 converts the digital signal to be transmitted into an analog signal to be transmitted, and divides the analog signal to be transmitted into two groups, namely a first uplink analog signal and a second uplink analog signal, wherein the first uplink analog signal and the second uplink analog signal have the same number of carriers, and the number of carriers contained in the first uplink analog signal is the same as the number of RF units in the main RF unit group 4, and the number of carriers contained in the second uplink analog signal is the same as the number of RF units in the diversity RF unit group 5.

After acquiring the first uplink analog signal and the second uplink analog signal, in order to allow the first uplink analog signal and the second uplink analog signal to obtain electromagnetic frequencies that can be radiated into space, the modem unit group 1 needs to transmit the first uplink analog signal to the main RF unit group 4 for frequency modulation processing, and transmit the second uplink analog signal to the diversity RF unit group 5 for frequency modulation processing. After the main RF unit group 4 performs frequency modulation processing on the first uplink analog signal, the first uplink signal can be obtained; similarly, after the diversity RF unit group 5 performs frequency modulation processing on the second uplink analog signal, the second uplink signal can be obtained.

After the main RF unit group 4 transmits the first uplink signal to the main antenna 2 and the diversity RF unit group 5 transmits the second uplink signal to the diversity antenna 3, the microwave transmission system can transmit the first uplink signal through the main antenna 2 and the second uplink signal through the diversity antenna 3.

In this embodiment, the modulation and demodulation unit group 1 divides the analog signal to be transmitted into a first uplink analog signal and a second uplink analog signal with the same number of carriers. After the first uplink analog signal and the second uplink analog signal are frequency modulated by the main RF unit group 4 and the diversity RF unit group 5 respectively, the main antenna 2 is used to transmit the first uplink signal, and the diversity antenna 3 is used to transmit the second uplink signal. This solves the problem that in the traditional microwave transmission system, all uplink signals are transmitted through the main antenna. In this process, all multi-transmit and multi-receive frequency points are concentrated under the same antenna for splitting and combining or carrier aggregation, resulting in more system gain loss. In addition, because this embodiment transmits half of the uplink signals to the diversity antenna 3 for transmission through the diversity RF unit, the equipment cost of using splitting and combining equipment is reduced.

On the other hand, when the microwave transmission system at the other end sends the first uplink signal and the second uplink signal to the present microwave transmission system through its own main antenna 2 and diversity antenna 3 respectively, the main antenna 2 of the present microwave transmission system can receive the main downlink signal, and at the same time, the diversity antenna 3 of the present microwave transmission system can also receive the diversity downlink signal, wherein the number of carriers contained in the main downlink signal is greater than or equal to the sum of the number of carriers contained in the first uplink signal and the second uplink signal, and the number of carriers contained in the diversity downlink signal is also greater than or equal to the sum of the number of carriers contained in the first uplink signal and the second uplink signal.

It can be understood that the main RF unit group 4 and the diversity RF unit group 5 are respectively configured to receive all downlink carriers, because the receiving carrier width of the main RF unit group 4 and the diversity RF unit group 5 of the microwave transmission system is 2 times or more than 2 times the transmitting carrier width. Therefore, even if the number of carriers of the main downlink signal is twice the number of RF units of the main RF unit group 4, the main RF unit group 4 can also perform frequency modulation processing on the main downlink signal transmitted from the main antenna 2 without causing gain loss as much as possible. Similarly, the diversity RF unit group 5 can also perform frequency modulation processing on the main downlink signal transmitted from the main antenna 2 without causing gain loss as much as possible. The diversity downlink signal transmitted from the diversity antenna 3 is frequency modulated.

The main RF unit group 4 performs frequency modulation on the main downlink signal, and after the diversity RF unit group 5 performs frequency modulation on the diversity downlink signal, each of the processed downlink signals can be transmitted to the modem unit group 1. After the modem unit group 1 converts the downlink signal into a digital signal, the digital signal can be transmitted to a signal receiving device such as a network port that communicates with the modem unit group 1.

It can be understood that, using the microwave transmission system provided in this embodiment, when the total number of carriers of the uplink signal to be transmitted or the downlink signal to be received is 4, the radio frequency unit under this microwave transmission system can complete signal transmission and reception without using a splitter/combiner device.

Specifically, as shown in FIG1 , the main RF unit group 4 includes a first RF unit 41 and a second RF unit 42 , and the diversity RF unit group 5 includes a third RF unit 51 and a fourth RF unit 52 ;

The first radio frequency unit 41 is connected to the vertical polarization signal port of the main antenna 2, and the second radio frequency unit 42 is connected to the horizontal polarization signal port of the main antenna 2;

The third RF unit 51 is connected to the vertical polarization signal port of the diversity antenna 3 , and the fourth RF unit 52 is connected to the horizontal polarization signal port of the diversity antenna 3 .

It can be understood that if the total number of carriers contained in the uplink signal to be transmitted is 4, then after the uplink signal is converted into an analog signal by the modulation and demodulation unit group 1, the total number of carriers contained in the analog signal is also 4.

Assume that the analog signal includes a first analog signal, a second analog signal, a third analog signal, and a fourth analog signal, and each of the first analog signal, the second analog signal, the third analog signal, and the fourth analog signal includes a carrier.

At this time, the modem unit group 1 transmits the first analog signal to the first RF unit 41 and transmits the second analog signal to the second RF unit 42. The first RF unit 41 performs frequency modulation on the first analog signal, and can transmit the first FM signal obtained after the frequency modulation processing to the main antenna 2 through the vertical polarization signal port of the main antenna 2; similarly, the second RF unit 42 performs frequency modulation on the second analog signal, and can also transmit the second FM signal obtained after the frequency modulation processing to the main antenna 2 through the horizontal polarization signal port of the main antenna 2, so as to transmit the first FM signal and the second FM signal through the main antenna 2.

Correspondingly, the modem unit group 1 transmits the third analog signal to the third RF unit 51 and transmits the fourth analog signal to the fourth RF unit 52. The third RF unit 51 performs frequency modulation on the third analog signal, and can transmit the third FM signal obtained after the frequency modulation processing to the diversity antenna 3 through the vertical polarization signal port of the diversity antenna 3; similarly, the fourth RF unit 52 performs frequency modulation on the fourth analog signal, and can also transmit the fourth FM signal obtained after the frequency modulation processing to the diversity antenna 3 through the horizontal polarization signal port of the diversity antenna 3, so as to transmit the third FM signal and the fourth FM signal through the diversity antenna 3.

In this embodiment, when the total number of carriers of the uplink signal is 4, the microwave transmission system can achieve multiple transmission and reception of signals without using a splitter/combiner device. Compared with the traditional microwave transmission system, the present disclosure greatly reduces the equipment cost of the splitter/combiner device.

On the other hand, because the first RF unit 41 can be directly installed on the vertical polarization signal port of the main antenna 2, and the second RF unit 42 can be directly installed on the horizontal polarization signal port of the main antenna 2, the first RF unit 41 and the second RF unit 42 can transmit signals to the main antenna 2 without using a feeder or a splitter-combiner device. Similarly, because the third RF unit 51 can be directly installed on the vertical polarization signal port of the diversity antenna 3, and the fourth RF unit 52 can be directly installed on the horizontal polarization signal port of the diversity antenna 3, the third RF unit 51 and the fourth RF unit 52 can also transmit signals to the diversity antenna 3 without using a feeder or a splitter-combiner device. The technical solution provided by this embodiment solves the problem that in a traditional microwave transmission system, after multiple RF units are connected to a splitter-combiner device, the splitter-combiner device connects to the diversity antenna 3 through a feeder. The antenna transmits signals, causing gain loss during the signal transmission process.

In some embodiments, the main RF unit group 4 includes a first RF unit group and a second RF unit group, and the diversity RF unit group 5 includes a third RF unit group and a fourth RF unit group;

The number of radio frequency units in the first radio frequency unit group, the second radio frequency unit group, the third radio frequency unit group and the fourth radio frequency unit group is the same, and the system further includes:

A first splitter/combiner device is connected to the first radio frequency unit group and the vertical polarization signal port of the main antenna 2 respectively;

The second splitter/combiner device is connected to the second radio frequency unit group and the horizontal polarization signal port of the main antenna 2 respectively;

The third splitter/combiner device is connected to the third radio frequency unit group and the vertical polarization signal port of the diversity antenna 3 respectively;

The fourth splitter-combiner device is connected to the fourth radio frequency unit group and the horizontal polarization signal port of the diversity antenna 3 respectively.

It can be understood that, because the main antenna 2 has only one vertical polarization signal port and one horizontal polarization signal port, the diversity antenna 3 also has only one vertical polarization signal port and one horizontal polarization signal port. Therefore, if the number of carriers of the uplink signal to be transmitted is greater than 4, it is necessary to first use a splitter-combiner device to combine multiple carriers into one, and then transmit the combined uplink signal to the main antenna 2 and the diversity antenna 3 through the splitter-combiner device, so as to transmit the uplink signal through the main antenna 2 and the diversity antenna 3.

Through the technical solution provided in this embodiment, when the uplink signal or the downlink signal exceeds 4 carriers, the microwave transmission system achieves multiple transmission and multiple reception.

In some embodiments, the first uplink signal includes a first signal and a second signal, and the second uplink signal includes a third signal and a fourth signal;

The operating frequencies of the first RF unit group and the third RF unit group cover the carrier frequencies of the first signal and the third signal, and the operating frequencies of the second RF unit group and the fourth RF unit group cover the carrier frequencies of the second signal and the fourth signal.

Through the technical solution provided in this embodiment, the carrier frequency range of the uplink signal transmitted by the main antenna 2 and the diversity antenna 3 of the microwave transmission system can be improved, while ensuring that the main antenna 2 and the diversity antenna 3 can receive complete downlink signals, thereby reducing the problem of gain loss in the process of multiple transmission and reception of signals in the microwave transmission system.

Please refer to FIG. 2 , which is a schematic diagram of a scenario of sending and receiving signals in a microwave transmission system provided in an embodiment of the present disclosure.

As shown in Figure 2, assume that the first uplink signal includes a first signal f1 and a second signal f2, and assume that the second uplink signal includes a third signal f3 and a fourth signal f4, wherein the frequencies of f1, f2, f3 and f4 are different, and the frequencies of f1 and f2 are adjacent, and the frequencies of f3 and f4 are adjacent.

It can be understood that the working frequency width of the RF unit is limited. If the working frequency range of the first RF unit group and the second RF unit group can only cover the frequencies of f1 and f2, and the working frequency range of the third RF unit group and the fourth RF unit group can only cover the frequencies of f3 and f4. Then when the downlink signals received by the microwave transmission system include f1', f2', f3' and f4', the main antenna 2 can only receive f1' and f2' through the first RF unit group and the second RF unit group, and the diversity antenna 3 can only receive f3' and f4' through the third RF unit group and the fourth RF unit group, where f1' is the downlink signal corresponding to f1, f2' is the downlink signal corresponding to f2, f3' is the downlink signal corresponding to f3, and f4' is the downlink signal corresponding to f4. In this way, spatial diversity protection cannot be achieved.

In this embodiment, the operating frequencies of the first RF unit group and the third RF unit group are set to cover the carrier frequencies of the first signal and the third signal, and the operating frequencies of the second RF unit group and the fourth RF unit group are set to cover the carrier frequencies of the second signal and the fourth signal. Then, when the downlink signals received by the microwave transmission system include f1′, f2′, f3′ and f4′, the main antenna 2 can receive f1′ and f2′ through the first RF unit group, and can receive f3′ and f4′ through the second RF unit group, while the diversity antenna 3 can receive f1′ and f2′ through the third RF unit group, and can receive f3′ and f4′ through the fourth RF unit group, wherein, f1′ is the downlink signal corresponding to f1, f2′ is the downlink signal corresponding to f2, f3′ is the downlink signal corresponding to f3, and f4′ is the downlink signal corresponding to f4. In this embodiment, since the main antenna 2 and the diversity antenna 3 can both receive f1′, f2′, f3′ and f4′, diversity protection can be achieved for each carrier signal.

The embodiment of the present disclosure also provides a microwave transmission method, which is applied to the microwave transmission system as described above.

Please refer to FIG. 3 , which is a schematic flow chart of a microwave transmission method provided by an embodiment of the present disclosure;

As shown in FIG. 1 , the microwave transmission method includes steps S10 to S13 .

Step S10: When the modulation and demodulation unit group receives multiple groups of uplink data to be transmitted, the modulation and demodulation unit group is controlled to modulate the uplink data to obtain multiple uplink carriers;

Step S11, controlling the modulation and demodulation unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group, and transmitting the first uplink carrier group to the main radio frequency unit group, and transmitting the second uplink carrier group to the diversity radio frequency unit group, wherein the first uplink carrier group and the second uplink carrier group have the same number of carriers, and the number of carriers in the first uplink carrier group is the same as the number of radio frequency units in the main radio frequency unit group;

Step S12: Control the main radio frequency unit group to convert the first uplink carrier group into the first uplink signal, and transmit the first uplink signal to the main antenna, so that the main antenna transmits the first uplink signal;

Step S13: Control the diversity radio frequency unit group to convert the second uplink carrier group into the second uplink signal, and transmit the second uplink signal to the diversity antenna, so that the diversity antenna transmits the second uplink signal.

In some embodiments, when multiple uplink carriers are divided into a first uplink carrier group and a second uplink carrier group, if the number of carriers contained in the uplink signal to be transmitted is an even number, the multiple uplink carriers can be equally divided into two groups to obtain a first uplink carrier group and a second uplink carrier group, wherein the number of carriers in the first uplink carrier group is the same as that in the second uplink carrier group.

In some embodiments, if the number of carriers contained in the uplink signal to be transmitted is an odd number, when the multiple uplink carriers are divided into a first uplink carrier group and a second uplink carrier group, one more carrier can be allocated to the first uplink carrier group so that the number of carriers of the first uplink carrier group is 1 greater than the number of carriers of the second uplink carrier group, or one more carrier can be allocated to the second uplink carrier group so that the number of carriers of the second uplink carrier group is 1 greater than the number of carriers of the first uplink carrier group.

After the modem unit group divides the multiple uplink carriers into the first uplink carrier group and the second uplink carrier group, the first uplink carrier group can be transmitted to the main RF unit group for frequency modulation processing, and the second uplink carrier group can be transmitted to the diversity RF unit group for frequency modulation processing.

In this process, after the main RF unit group performs frequency modulation processing on the first uplink carrier group, the frequency of the first uplink carrier group can be adjusted to an electromagnetic frequency that can be radiated in space, thereby obtaining a first uplink signal. Similarly, after the diversity RF unit group performs frequency modulation processing on the second uplink carrier group, the frequency of the second uplink carrier group can be adjusted to an electromagnetic frequency that can be radiated in space, thereby obtaining a second uplink signal.

Afterwards, the main RF unit group transmits the first uplink signal to the main antenna, and the diversity RF unit group transmits the second uplink signal to the diversity antenna. The microwave transmission system can transmit the first uplink signal through the main antenna and the second uplink signal through the diversity antenna.

In this method, the uplink carriers are distributed as evenly as possible in the first uplink carrier group and the second uplink carrier group, and the main antenna and the diversity antenna are used to jointly transmit the uplink signal. This solves the problem that in the traditional microwave transmission system, all uplink signals are transmitted through the main antenna. If the number of carriers of the uplink signal is greater than 2, the main antenna will inevitably need to use a splitter-combiner device to perform multi-carrier combination on the uplink signal before transmitting the signal, resulting in a large gain loss. In addition, because this embodiment transmits half of the uplink signal to the diversity antenna for transmission through the diversity RF unit, the microwave transmission system only needs to use a splitter-combiner device when the number of carriers of the uplink signal is greater than 4. The use of this method can reduce Reduce the equipment cost of the combining equipment.

In some implementations, controlling the modem unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group includes:

When the multiple uplink carriers include a first carrier and a second carrier adjacent to the first carrier, the first carrier is stored in a first uplink carrier group, and the second carrier is stored in a second uplink carrier group, wherein the distance between the carrier frequencies of the first carrier and the second carrier is within a preset distance range.

It can be understood that because the distance between the carrier frequencies of the first carrier and the second carrier is within the preset distance range, the first carrier and the second carrier are adjacent carriers. In addition, because the operating frequency width of the RF unit is limited, the use scenario of this embodiment is based on the fact that the carrier frequencies of the first carrier and the second carrier are within the operating frequency coverage range of the first RF unit group, and the carrier frequencies of the first carrier and the second carrier are also within the operating frequency coverage range of the third RF unit group.

As shown in Figure 2, assuming that the uplink signal f1 includes a first carrier, assuming that the uplink signal f2 includes a second carrier, in this embodiment, the first carrier is stored in the first uplink carrier group to transmit the first carrier through the main antenna; and the second carrier is stored in the second uplink carrier group to transmit the second carrier through the diversity antenna. Then, when the microwave transmission system at the other end configured the same as that of this embodiment receives the corresponding downlink signal, the microwave transmission system at the other end can simultaneously receive and process the first carrier and the second carrier through the first radio frequency unit group, and the microwave transmission system at the other end can also receive and process the first carrier and the second carrier through the third radio frequency unit group, wherein f1′ is the downlink signal corresponding to f1, and f2′ is the downlink signal corresponding to f2. In this embodiment, all carrier signals are received from the main antenna and the diversity antenna respectively, so diversity protection for each carrier signal can be achieved.

In some embodiments, the method further comprises:

When the main antenna receives the main downlink signal and the diversity antenna receives the diversity downlink signal, the main antenna transmits the main downlink signal to the main RF unit group, and the diversity antenna transmits the diversity downlink signal to the diversity RF unit group, wherein the main downlink signal has the same number of carriers as the diversity downlink signal, and the number of carriers of the main downlink signal is greater than or equal to the sum of the number of carriers of the first uplink signal and the second uplink signal;

Controlling the main radio frequency unit group to convert the main downlink signal into a first receiving carrier, and controlling the diversity radio frequency unit group to convert the diversity downlink signal into a second receiving carrier;

Control the main radio frequency unit group to transmit the first receiving carrier to the modem unit group, and control the diversity radio frequency unit group to transmit the second receiving carrier to the modem unit group;

The modulation and demodulation unit group is controlled to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain multiple receiving separated carriers, and carrier signals with the same frequency and polarization are selected from the multiple receiving separated carriers for synthesis or selective receiving processing to obtain the target carrier signal, thereby realizing diversity protection.

In this implementation, when the main antenna receives a main downlink signal, the main downlink signal is transmitted to the main RF unit group; when the diversity antenna receives a diversity downlink signal, the diversity downlink signal is transmitted to the diversity RF unit group.

The main radio frequency unit group performs frequency modulation processing on the main downlink signal to obtain a first receiving carrier; similarly, the diversity radio frequency unit group performs frequency modulation processing on the diversity downlink signal to obtain a second receiving carrier.

Among them, the first receiving carrier is obtained by processing the main downlink signal received by the main antenna, and the second receiving carrier is obtained by processing the diversity downlink signal received by the diversity antenna. The number of subcarriers in the first receiving carrier and the second receiving carrier is the same. The difference is that the signal quality of the subcarrier under a certain frequency point and polarization in the first receiving carrier and the second receiving carrier may be different. The carrier quality of some subcarriers in the first receiving carrier is better, while the carrier quality of some subcarriers in the second receiving carrier is better.

It can be understood that when using the main antenna and the diversity antenna to simultaneously receive downlink signals, if the carrier quality of a subcarrier signal at a certain frequency and a certain polarization is poor at one antenna, but the carrier quality received at another antenna is relatively good, by using the modulation and demodulation unit group to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier, the carrier signal with the same frequency and polarization is selected from the separation result for synthesis or selective reception processing, so that the signal quality of each subcarrier signal in the obtained target carrier signal can be guaranteed to be good as much as possible. The technical solution provided by this embodiment realizes spatial diversity protection.

In some implementations, the controlling the modulation and demodulation unit group to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain a plurality of receiving separated carriers includes:

Controlling the modulation and demodulation unit group to perform ADC sampling on the first received carrier to obtain a sampling signal including a plurality of subcarriers;

Selecting a target subcarrier from the sampled signal, and moving the center frequency of the target subcarrier to a preset frequency;

A preset filter is used to filter out other interference signals outside the preset frequency range in the sampled signal to obtain a receiving separated carrier corresponding to the target subcarrier, wherein the center frequency point of the preset frequency range is the preset frequency point.

It can be understood that the modulation and demodulation unit group can convert the first received carrier from an analog signal into a digital signal by performing ADC sampling on the first received carrier.

After ADC sampling, the obtained sampling signal includes several subcarriers received by the main antenna, and each subcarrier has a different frequency point and polarization direction in the sampling signal.

A target subcarrier is selected from multiple subcarriers included in the sampling signal, and a receiving separated carrier corresponding to the target subcarrier is obtained by performing frequency shift processing on the target subcarrier and then filtering using a filter.

When each subcarrier in the sampling signal is used as a target subcarrier, after frequency shifting and filtering to obtain the corresponding receiving separated carrier, each receiving separated carrier is sent to the corresponding demodulation channel of the modulation and demodulation unit group. The modulation and demodulation unit group can select the carrier signal with the same frequency and polarization from multiple receiving separated carriers for synthesis or selective receiving processing to obtain the target carrier signal.

It can be understood that the multi-carrier separation processing process of the second received carrier is the same as the multi-carrier separation processing process of the first received carrier, and will not be described in detail here.

Please refer to FIG. 4 , which is a schematic block diagram of the structure of a microwave transmission device provided in an embodiment of the present disclosure.

As shown in Figure 4, the microwave transmission device 300 includes a processor 301 and a memory 302, and the processor 301 and the memory 302 are connected through a bus 303, which is, for example, an I2C (Inter-integrated Circuit) bus.

Specifically, the processor 301 is configured to provide computing and control capabilities to support the operation of the entire microwave transmission device. The processor 301 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

Specifically, the memory 302 can be a Flash chip, a read-only memory (ROM) disk, an optical disk, a U disk or a mobile hard disk, etc.

Those skilled in the art will appreciate that the structure shown in FIG. 4 is merely a block diagram of a portion of the structure related to the embodiment of the present disclosure, and does not constitute a limitation on the microwave transmission device to which the embodiment of the present disclosure is applied. The specific microwave transmission device may include more or fewer components than those shown in the figure, or may combine certain components, or may have different components. Pieces arrangement.

The processor 301 is configured to run a computer program stored in a memory, and implement any one of the microwave transmission methods provided in the embodiments of the present disclosure when executing the computer program.

In one embodiment, the processor 301 is configured to run a computer program stored in a memory, and implement the following steps when executing the computer program:

In one embodiment, when the number of carriers contained in the uplink signal to be transmitted is an odd number, the number of carriers of the first uplink carrier group is 1 greater than the number of carriers of the second uplink carrier group, or the number of carriers of the second uplink carrier group is 1 greater than the number of carriers of the first uplink carrier group.

In one embodiment, when the processor 301 controls the modem unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group, the processor 301 includes:

In one embodiment, the processor 301 is further configured to:

The modem unit group is controlled to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain multiple receiving separated carriers, and carrier signals with the same frequency and polarization are selected from the multiple receiving separated carriers for synthesis or selective receiving processing to obtain a target carrier signal.

In one embodiment, when the processor 301 controls the modulation and demodulation unit group to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain multiple receiving separated carriers, it includes:

It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the microwave transmission equipment described above can refer to the corresponding process in the aforementioned microwave transmission method embodiment, and will not be repeated here.

The embodiments of the present disclosure also provide a storage medium, which is configured as a computer-readable storage medium, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of any microwave transmission method provided in the description of the embodiments of the present disclosure.

The storage medium may be an internal storage unit of the microwave transmission device described in the aforementioned embodiment, such as a hard disk or memory of the microwave transmission device. The storage medium may also be an external storage device of the microwave transmission device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc., equipped on the microwave transmission device.

It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules/units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware embodiment, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

It should be understood that the term "and/or" used in this disclosure and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, including these combinations. It should be noted that, in this article, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "including a..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

The serial numbers of the embodiments of the present disclosure are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present disclosure, and these modifications or replacements should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

A microwave transmission system, comprising:

Modem unit group;

a main antenna, configured to transmit a first uplink signal and receive a main downlink signal;

a diversity antenna, configured to transmit a second uplink signal and receive a diversity downlink signal;

a main RF unit group, respectively connected to the modem unit group and the main antenna for communication, and configured to transmit the first uplink signal obtained from the modem unit group to the main antenna, and to transmit the main downlink signal obtained from the main antenna to the modem unit group;

A diversity radio frequency unit group is respectively connected to the modem unit group and the diversity antenna for communication, and is configured to transmit the second uplink signal obtained from the modem unit group to the diversity antenna, and to transmit the diversity downlink signal obtained from the diversity antenna to the modem unit group;

The number of RF units in the main RF unit group and the diversity RF unit group is the same, and the receiving carrier width of the main RF unit group and the diversity RF unit group is 2 times or more than 2 times the transmitting carrier width.
The system according to claim 1, wherein the main RF unit group includes a first RF unit and a second RF unit, and the diversity RF unit group includes a third RF unit and a fourth RF unit;

The first radio frequency unit is connected to the vertical polarization signal port of the main antenna, and the second radio frequency unit is connected to the horizontal polarization signal port of the main antenna;

The third radio frequency unit is connected to the vertical polarization signal port of the diversity antenna, and the fourth radio frequency unit is connected to the horizontal polarization signal port of the diversity antenna.
The system according to claim 1, wherein the main radio frequency unit group includes a first radio frequency unit group and a second radio frequency unit group, and the diversity radio frequency unit group includes a third radio frequency unit group and a fourth radio frequency unit group;

The number of radio frequency units in the first radio frequency unit group, the second radio frequency unit group, the third radio frequency unit group and the fourth radio frequency unit group is the same, and the system further includes:

A first splitter/combiner device is connected to the first radio frequency unit group and the vertical polarization signal port of the main antenna respectively;

A second splitter/combiner device is connected to the second radio frequency unit group and the horizontal polarization signal port of the main antenna respectively;

A third splitter/combiner device is connected to the third radio frequency unit group and the vertical polarization signal port of the diversity antenna respectively;

The fourth splitter-combiner device is connected to the fourth radio frequency unit group and the horizontal polarization signal port of the diversity antenna respectively.
The system according to claim 3, wherein the first uplink signal includes a first signal and a second signal, and the second uplink signal includes a third signal and a fourth signal;

Among them, the operating frequencies of the first RF unit group and the third RF unit group cover the carrier frequencies of the first signal and the third signal, and the operating frequencies of the second RF unit group and the fourth RF unit group cover the carrier frequencies of the second signal and the fourth signal.
A microwave transmission method, applied to the system according to claims 1-4, the method comprising:

When the modulation and demodulation unit group receives multiple groups of uplink data to be transmitted, the modulation and demodulation unit group is controlled to modulate the uplink data to obtain multiple uplink carriers;

Control the modem unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group, and transmit the first uplink carrier group to the main radio frequency unit group, and transmit the second uplink carrier group to the diversity radio frequency unit group, wherein the first uplink carrier group and the second uplink carrier group have the same number of carriers, and ... The number of carriers in an uplink carrier group is the same as the number of radio frequency units in the main radio frequency unit group;

Controlling the main radio frequency unit group to convert the first uplink carrier group into the first uplink signal, and transmitting the first uplink signal to the main antenna, so that the main antenna transmits the first uplink signal;

The diversity radio frequency unit group is controlled to convert the second uplink carrier group into the second uplink signal, and the second uplink signal is transmitted to the diversity antenna, so that the diversity antenna transmits the second uplink signal.
The method according to claim 5, wherein, when the number of carriers contained in the uplink signal to be transmitted is an odd number, the number of carriers of the first uplink carrier group is 1 greater than the number of carriers of the second uplink carrier group, or the number of carriers of the second uplink carrier group is 1 greater than the number of carriers of the first uplink carrier group.
The method according to any one of claims 5 to 6, wherein the controlling the modulation and demodulation unit group to divide the plurality of uplink carriers into a first uplink carrier group and a second uplink carrier group comprises:

When the multiple uplink carriers include a first carrier and a second carrier adjacent to the first carrier, the first carrier is stored in a first uplink carrier group, and the second carrier is stored in a second uplink carrier group, wherein the distance between the carrier frequencies of the first carrier and the second carrier is within a preset distance range.
The method according to any one of claims 5 to 6, wherein the method further comprises:

When the main antenna receives the main downlink signal and the diversity antenna receives the diversity downlink signal, the main antenna transmits the main downlink signal to the main RF unit group, and the diversity antenna transmits the diversity downlink signal to the diversity RF unit group, wherein the main downlink signal has the same number of carriers as the diversity downlink signal, and the number of carriers of the main downlink signal is greater than or equal to the sum of the number of carriers of the first uplink signal and the second uplink signal;

Controlling the main radio frequency unit group to convert the main downlink signal into a first receiving carrier, and controlling the diversity radio frequency unit group to convert the diversity downlink signal into a second receiving carrier;

Control the main radio frequency unit group to transmit the first receiving carrier to the modem unit group, and control the diversity radio frequency unit group to transmit the second receiving carrier to the modem unit group;

The modulation and demodulation unit group is controlled to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain multiple receiving separated carriers, and carrier signals with the same frequency and polarization are selected from the multiple receiving separated carriers for synthesis or selective receiving processing to obtain the target carrier signal, thereby realizing diversity protection.
The method according to claim 8, wherein the controlling the modulation and demodulation unit group to perform multi-carrier separation processing on the first receiving carrier and the second receiving carrier respectively to obtain multiple receiving separated carriers comprises:

Controlling the modulation and demodulation unit group to perform ADC sampling on the first received carrier to obtain a sampling signal including a plurality of subcarriers;

Selecting a target subcarrier from the sampled signal, and moving the center frequency of the target subcarrier to a preset frequency;

A preset filter is used to filter out other interference signals outside the preset frequency range in the sampled signal to obtain a receiving separated carrier corresponding to the target subcarrier, wherein the center frequency point of the preset frequency range is the preset frequency point.
A storage medium, configured as a computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the microwave transmission method described in any one of claims 5 to 9.