CN112512055B - Indoor distribution single-path coverage system - Google Patents
Indoor distribution single-path coverage system Download PDFInfo
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- CN112512055B CN112512055B CN202011332859.4A CN202011332859A CN112512055B CN 112512055 B CN112512055 B CN 112512055B CN 202011332859 A CN202011332859 A CN 202011332859A CN 112512055 B CN112512055 B CN 112512055B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the application provides an indoor distributed single-path coverage system, which comprises: a multi-system combiner and an antenna; the multi-system combiner is used for receiving three first signals with different frequencies and at least four second signals with the same frequency, combining the three first signals with different frequencies with at least one second signal and transmitting the three first signals through a first antenna oscillator of the antenna; at least three second signals with the same frequency are respectively transmitted through a second antenna element of the antenna, a third antenna element of the antenna and a fourth antenna element of the antenna. According to the indoor distribution single-channel coverage system provided by the embodiment of the application, 5G 4 x 4MIMO can be realized on the existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and the user perception experience is improved.
Description
Technical Field
The application belongs to the technical field of wireless communication, and particularly relates to an indoor distributed single-path coverage system.
Background
With the development of mobile data, more and more users access to the fifth generation mobile communication technology (5th generation mobile networks,5G) network, but the fifth generation mobile communication technology (4th generation mobile networks,4G) network and the 5G network coexist for a long time at present because the 5G technology is still immature.
In practical application, the indoor distribution system is one of key areas of 5G network deployment, most of the original 4G indoor distribution systems are single-path 2 x 2 multiple-input multiple-output (multiple input multiple output, MIMO) indoor distribution systems, the indoor distribution system is one of key areas of 5G technology, 80% of the original 4G indoor distribution systems are single-path 2 x 2MIMO indoor distribution systems, and if the 4G indoor distribution systems and the 5G indoor distribution systems are directly combined, uplink throughput and downlink throughput are greatly reduced.
The existing 5G indoor distribution system technology has the problems of poor signal quality, poor user perception and the like.
Disclosure of Invention
The embodiment of the application provides a 5G indoor distribution single-path coverage system, which can realize 5G 4 x 4MIMO on the existing single-path indoor distribution system, improve the signal quality of the indoor distribution system and improve the user perception experience.
The embodiment of the application provides an indoor distributed single-path coverage system, which comprises a multi-system combiner and an antenna;
a multi-system combiner for receiving three first signals of different frequencies and at least four second signals of the same frequency, combining the three first signals of different frequencies with at least one second signal, and transmitting through a first antenna element of the antenna;
at least three second signals with the same frequency are respectively transmitted through the second antenna element of the antenna, the third antenna element of the antenna and the fourth antenna element of the antenna.
In one possible implementation, the system further comprises a coupler for distributing radio frequency power for the first antenna element, the second antenna element, the third antenna element and the fourth antenna element transmit signals of the antenna.
In one possible implementation, the coupler satisfies the rf index requirement information of the system, where the rf index requirement information includes at least one of a coupling degree, an insertion loss, a standing wave ratio, or a passive intermodulation.
In one possible implementation, the multi-system combiner includes a first variable frequency filter unit, and the antenna includes a second variable frequency filter unit;
the first frequency conversion filter unit is used for respectively converting at least three second signals with the same frequency, wherein the frequencies of the at least three second signals after frequency conversion are at least three different frequencies;
the second frequency conversion filter unit is used for respectively converting the at least three second signals converted by the first frequency conversion filter unit, wherein the frequencies of the at least three second signals converted by the second frequency conversion filter unit are the same.
In one possible implementation, the frequencies of the at least three second signals after being converted by the first conversion filtering unit are separated by at least 40MHz.
In one possible implementation, a multi-system combiner includes:
a monitoring unit for monitoring power information and frequency information of at least three first signals of a first frequency and at least four second signals;
when the power or the frequency of the three first signals with different frequencies and the at least four second signals with the same frequency deviate from a preset value, the monitoring unit is further used for correcting the power or the frequency according to the preset value.
In one possible implementation, an antenna includes:
the information acquisition unit is used for acquiring the radio frequency power information and the frequency information of each vibrator in the antenna.
In a possible implementation manner, the information acquisition unit is further configured to transmit radio frequency power information and frequency information of each vibrator in the antenna to the information acquisition unit.
In one possible implementation, the antenna is a multi-polarized antenna;
the first antenna oscillator is an oscillator vertical to the ground plane;
the first antenna oscillator is an oscillator horizontal to the ground plane;
the first antenna oscillator is an oscillator which is offset by 45 degrees clockwise relative to the ground plane;
the first antenna element is an element offset by 45 degrees counter-clockwise with respect to the ground plane.
In one possible implementation, the system further comprises a power supply module;
and the power supply module is used for supplying power to the multi-system combiner and the antenna.
The information acquisition unit is also used for receiving and monitoring the radio frequency power information and the frequency information of each oscillator in the antenna.
The technical scheme provided by the embodiment of the application at least brings the following beneficial effects:
according to the indoor distributed single-channel coverage system, three first signals with different frequencies and at least four second signals with the same frequency can be received through the multi-system combiner, the three first signals with different frequencies are combined with the at least one second signal, and the three first signals are transmitted through the first antenna oscillator of the antenna. And simultaneously, at least three second signals with the same frequency are respectively transmitted through a second antenna element of the antenna, a third antenna element of the antenna and a fourth antenna element of the antenna. Therefore, 5G 4 x 4MIMO can be realized on the existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and the user perception experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described, and it is possible for a person skilled in the art to obtain other drawings according to these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an indoor distributed single-path coverage system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of another indoor distributed single-path coverage system according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application are described in detail below to make the objects, technical solutions and advantages of the present application more apparent, and to further describe the present application in conjunction with the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to explain the present application and are not configured to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by showing examples of the present application.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
With the development of mobile data, more and more users access to the 5G network, but since the 5G technology is still not mature, the 4G technology and the 5G technology coexist for a long time.
In practical application, the indoor distribution system is one of key areas of 5G network deployment, most of the original 4G indoor distribution systems are single-path 2 x 2mimo indoor distribution systems, the indoor distribution system is one of key areas of 5G technology, 80% of the original 4G indoor distribution systems are single-path 2 x 2mimo indoor distribution systems, and if the 4G indoor distribution systems and the 5G indoor distribution systems are directly combined, uplink throughput and downlink throughput are greatly reduced.
The existing 5G indoor distribution system technology has the problems of poor signal quality, poor user perception and the like.
Based on the above-mentioned problems, the embodiment of the application provides an indoor distributed single-path coverage system, which can receive three first signals with different frequencies and at least four second signals with the same frequency through a multi-system combiner, combine the three first signals with different frequencies with at least one second signal, and transmit the signals through a first antenna oscillator of an antenna. And simultaneously, at least three second signals with the same frequency are respectively transmitted through a second antenna element of the antenna, a third antenna element of the antenna and a fourth antenna element of the antenna. Therefore, 5G 4 x 4MIMO can be realized on the existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and the user perception experience is improved.
An indoor distributed one-way coverage system provided in an embodiment of the present application will be described in detail with reference to fig. 1.
As shown in fig. 1, the indoor distributed single-path coverage system may include a multi-system combiner 110 and an antenna 120.
The antenna 120 includes a first antenna element 121, a second antenna element 122, a third antenna element 123, and a fourth antenna element 124.
The multi-system combiner 110 is configured to receive three first signals with different frequencies and at least four second signals with the same frequency, combine the three first signals with the different frequencies with the at least one second signal, and transmit the combined signals through the first antenna element 121 of the antenna.
At least three second signals of the same frequency are transmitted through the second antenna element 122 of the antenna 120, the third antenna element 123 of the antenna, and the fourth antenna element 124 of the antenna, respectively.
In one embodiment provided herein, the three first signals of different frequencies may include a second generation communication technology (2th generation mobile networks,2G) signal having a frequency of 900MHz, a 4G signal having a frequency of 1800MHz and a frequency of 2300 MHz. The at least four second signals of the same frequency may comprise four 5G signals of frequency 2600 MHz.
Any one of a 2G signal having a frequency of 900MHz, a 4G signal having a frequency of 1800MHz and a frequency of 2300MHz, and a 5G signal having four frequencies of 2600MHz is combined and transmitted through the first antenna element 121 of the antenna 120.
The other three signals of the four 5G signals having a frequency of 2600MHz are transmitted through the second antenna element 122, the third antenna element 123, and the fourth antenna element 124 of the antenna 120, respectively.
According to the indoor distribution single-channel coverage system provided by the embodiment of the application, 2G, 4G and 5G signals can be received through multi-system combining and 2G, 4G and 5G signals are transmitted through the antennas, so that 5G 4 x 4MIMO is realized on an existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and user perception experience is improved.
In one embodiment provided herein, the indoor distributed single-path coverage system further includes a coupler, where the coupler is configured to allocate radio frequency power to the signals transmitted by the first antenna element 121, the second antenna element 122, the third antenna element 123, and the fourth antenna element 124 of the antenna.
The rf power refers to electromagnetic frequencies radiated into space, and the coupler allocates power for the signals according to the frequencies of the signals transmitted by the antennas, that is, three first signals of different frequencies and at least four second signals of different frequencies.
The system provided by the embodiment of the application can distribute power for the signals transmitted by the antenna, so that the strength of the signals transmitted by the antenna is ensured, and the perceived experience of a user when using a network is improved.
According to the indoor distributed single-channel coverage system, three first signals with different frequencies and at least four second signals with the same frequency can be received through the multi-system combiner, the three first signals with different frequencies are combined with the at least one second signal, and the three first signals are transmitted through the first antenna oscillator of the antenna. And simultaneously, at least three second signals with the same frequency are respectively transmitted through a second antenna element of the antenna, a third antenna element of the antenna and a fourth antenna element of the antenna. Therefore, 5G 4 x 4MIMO can be realized on the existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and the user perception experience is improved.
The above diagram provides an indoor distributed single-path coverage system, and another indoor distributed single-path coverage system provided in the embodiment of the present application is described below with reference to fig. 2.
As shown in fig. 2, in the indoor distributed single-path coverage system provided in the embodiment of the present application, the multi-system combiner 210 includes a first filtering unit 211, and the antenna 220 includes a second filtering unit 221.
The multi-system combiner 210 is configured to receive three first signals of different frequencies and at least four second signals of the same frequency.
The first variable frequency filtering unit 211 is configured to convert the at least three second signals with the same frequency into at least three different frequencies, where the frequencies of the at least three second signals after the frequency conversion are respectively.
The second frequency conversion filter unit 221 is configured to convert the at least three second signals converted by the first frequency conversion filter unit 211 into frequencies respectively, where the frequencies of the at least three second signals converted by the second frequency conversion filter unit are the same.
The multi-system combiner 210 combines the three first signals with different frequencies with the at least one second signal, then combines the combined signals with the at least three second signals after frequency conversion, and sends the combined signals to the antenna 220.
The antenna 220 receives the signal sent by the multi-system combiner 210, and splits the signal and transmits the signal through the antenna element. Wherein, three first signals with different frequencies and at least one second signal which is not subjected to frequency conversion by the first frequency conversion filtering unit are transmitted through the first antenna oscillator 223; the at least three second signals after being subjected to frequency conversion by the first frequency conversion filtering unit 211 are respectively converted into at least three second signals with the same frequency by the second frequency conversion filtering unit 221, and then are respectively transmitted by the second antenna element 224, the third antenna element 225 and the fourth antenna element 226.
In one embodiment provided herein, the three first signals of different frequencies may include a 2G signal of 900MHz, a fourth generation communication technology 4G signal of 1800MHz and a frequency 2300 MHz. The at least four second signals of the same frequency may comprise four 5G signals of frequency 2600 MHz. Then, the at least three second signals of the same frequency may be three 5G signals of 2600MHz frequency.
The multi-system combiner 210 combines one 2G signal having a frequency of 900MHz, one 4G signal having a frequency of 1800MHz and one 2300MHz, and any one of four 5G signals having a frequency of 2600 MHz.
The first variable frequency filtering unit 211 converts the other three signals in the four 5G signals with the frequency of 2600MHz into signals with the frequencies of 1020MHz-1120MHz, 1300MHz-1400MHz and 1440MHz-1540MHz respectively, and filters the three signals after the frequency conversion to ensure that the signal frequency is within a preset frequency band (the preset frequency band is 1020MHz-1120MHz, 1300MHz-1400MHz and 1440MHz-1540 MHz). The multisystem combiner 210 then combines the three signals of the different frequencies after the frequency conversion filtering with any one of the combined 2G signal of 900MHz, the combined 4G signal of 1800MHz and 2300MHz, and the combined 5G signal of 2600 MHz. The combined signals are sent to the antenna 220.
The antenna 220 receives the signal sent by the multi-system combiner 210, and splits the signal and transmits the signal through the antenna element. Wherein a 2G signal with a frequency of 900MHz, a 4G signal with a frequency of 1800MHz and a frequency of 2300MHz, and a 5G signal with a frequency of 2600MHz are transmitted through the first antenna vibrator 223; signals with frequencies of 1020MHz-1120MHz, 1300MHz-1400MHz and 1440MHz-1540MHz are respectively converted into three signals with frequencies of 2600MHz through the second frequency conversion filtering unit 221, and then are respectively transmitted through the second antenna element 224, the third antenna element 225 and the fourth antenna element 226.
The second variable frequency filtering unit 221 may convert the 1020MHz-1120MHz, 1300MHz-1400MHz, 1440MHz-1540MHz signals received by the antenna into 2600MHz signals, and filter the three converted signals to ensure that the signal frequency is a preset frequency (the preset frequency is 2600 MHz).
In the system provided by the embodiment of the application, the first variable frequency filtering unit of the multi-system combiner converts at least three second signals with the same frequency into at least three second signals with different frequencies and transmits the second signals to the antenna, the second variable frequency filtering unit of the antenna can convert the at least three second signals with different frequencies into three signals with the same frequency, the purity of the frequency in the system is guaranteed, the influence among the signals in the transmission process is reduced, the quality of the antenna transmitting signals is guaranteed, and the perception experience of a user is improved.
In one embodiment provided in the present application, the frequencies of the at least three second signals after being subjected to frequency conversion by the first frequency conversion filtering unit are separated by at least 40M.
In the system provided by the embodiment of the application, the frequency interval is larger than 40M when signals are transmitted between the multi-system combiner and the antenna, so that the isolation between frequencies is guaranteed to be larger than 85dB, and the influence among multiple channels can be ignored.
In the indoor distribution single-channel coverage system provided by the embodiment of the application, the multi-system combiner can convert at least three second signals with the same frequency into at least three second signals with different frequencies and transmit the second signals to the antenna, the antenna can convert the at least three second signals with different frequencies into three signals with the same frequency, the purity of the frequencies in the system is ensured, the influence of the signals during transmission between the multi-system combiner and the antenna is reduced, and the perception experience of a user is improved.
In one embodiment provided herein, the indoor distributed single-path coverage system further includes a coupler, where the coupler is configured to allocate radio frequency power for transmitting signals to the first antenna element 223, the second antenna element 224, the third antenna element 225, and the fourth antenna element 226 of the antenna. Power may also be allocated for three first signals of different frequencies and at least four second signals of the same frequency through a multi-system combiner.
In one example, the coupler may allocate power for one 2G signal at 900MHz, one 4G signal at 1800MHz and one 2300MHz, four 5G signals at 2600MHz received by the multi-system combiner 210. The frequency may also be allocated to a signal having a frequency of 1020MHz-1120MHz, a frequency of 1300MHz-1400MHz, and a frequency of 1440MHz-1540MHz after the frequency conversion by the first frequency conversion filtering unit 211. Power may also be allocated to the combined signals transmitted via the multiple systems and the routers. The frequency can also be allocated for a signal with the frequency of 1020MHz-1120MHz, a frequency of 1300MHz-1400MHz and a frequency of 1440MHz-1540MHz after the antenna is shunted. Power may also be allocated to three 5G signals having a frequency of 2600MHz after being converted by the second conversion filtering unit 221.
The coupler in the system provided by the embodiment of the application can distribute power for the signals in the system, so that the signal quality is ensured, and the perception experience of a user is improved.
In one embodiment provided by the application, the coupler satisfies the radio frequency index requirement information of the indoor distributed single-path coverage system, wherein the radio frequency index requirement information comprises at least one of coupling degree, insertion loss, standing wave ratio or passive intermodulation.
In one example, the rf index satisfied by the coupler provided in the embodiments of the present application is shown in table 1. The frequency range of the coupler is 798MHz-2700MHz signal distribution power; the coupling degree is 6dB plus or minus 0.8dB, 10dB plus or minus 1.0dB or 15dB plus or minus 1.0dB; the insertion loss is 6dB: less than or equal to 2.0dB and 10dB: less than or equal to 1.0dB or 15dB: less than or equal to 0.8dB; the directivity is more than or equal to 15dB; standing wave ratio is less than or equal to 1.5; the radio frequency power capacity is more than or equal to 200W (average power); passive intermodulation is less than or equal to-145 dBc (+43dbm×2); the maximum passing current of the coupling end is more than or equal to 10A (DC); the maximum passing current of the through end is more than or equal to 20A (DC).
Table 1 RF index satisfied by coupler
The coupler provided by the embodiment of the application can improve radio frequency indexes of variable frequency bands (1020-1120 MHz, 1300-1400MHz and 1440-1540 MHz) in the embodiment of the application, can ensure the strength of signals transmitted by an antenna, and improves the perceived experience of a user when the user uses a network.
In one embodiment provided herein, the multi-system combiner 210 includes:
a monitoring unit 212, configured to monitor power information and frequency information of the three first signals with different frequencies and the at least four second signals with the same frequency.
When the power or frequency of the three first signals with different frequencies and the at least four second signals with the same frequency deviate from a preset value, the monitoring unit 212 is further configured to correct the power or frequency according to the preset value.
In one embodiment provided herein, the monitoring unit 212 collects frequency information and corresponding power information of the input and output signals of the multi-system combiner 210. And judging the rationality and balance of the collected power information, so as to judge whether the working state of the multi-system combiner is normal, and facilitate the operation maintenance and optimization of a system by staff.
In one embodiment provided herein, the monitoring unit 212 may correct the power or the frequency according to a preset value when the power or the frequency of the three first signals with different frequencies and the at least four second signals with the same frequency deviate from the preset value.
The system provided by the embodiment of the application can correct the power or the frequency of the signal in the system to ensure that the signal is a preset value, thereby ensuring the running stability of the system.
And the information acquisition unit 222 is configured to acquire radio frequency power information and frequency information of each oscillator in the antenna 220.
The system provided by the embodiment of the application can monitor the radio frequency power information and the frequency information of the antenna element, and a worker can judge whether the antenna works normally or not, so that the worker can conveniently operate, maintain and optimize the system.
In one embodiment provided herein, the information collecting unit 222 is further configured to transmit the rf power information and the rf frequency information of each transducer in the antenna 220 to the information monitoring unit 212. So that the monitoring unit 212 can judge the rationality and balance of the power information acquired by the information acquisition unit 222, and when the power is unreasonable, the monitoring unit 412 gives an alarm instruction; when the power is unbalanced, the monitor unit 212 gives a gain adjustment instruction.
According to the system provided by the embodiment of the application, the information acquisition module of the antenna can transmit the radio frequency power information and the frequency information of the antenna element to the monitoring unit so that the monitoring unit can judge the rationality and the balance of the acquired power information, and when the power is unreasonable, the monitoring unit gives an alarm instruction; when the power is unbalanced, the monitoring unit gives a gain adjustment instruction. The stability of the radio frequency power of the antenna is guaranteed, and the perception experience of a user when the user uses a network is improved.
In one embodiment provided herein, antenna 220 is a multi-polarized antenna.
The first antenna element 223 is an element perpendicular to the ground plane.
The second antenna element 224 is an element that is horizontal with respect to the ground plane.
The third antenna element 225 is an element offset 45 degrees clockwise with respect to the ground plane.
The fourth antenna element 226 is an element offset 45 degrees counter-clockwise with respect to the ground plane.
The polarization directions of the antenna elements of the system are different, mutual isolation of radio frequencies of the four antenna elements is guaranteed, throughput efficiency of the system is improved, and perceived experience of a user when the user uses a network is improved.
In one embodiment provided herein, the indoor distributed single-pass coverage system further includes a power supply module 230.
And a power supply module 230 for supplying power to the multi-system combiner 210 and the antenna 220.
In the system provided by the embodiment of the present application, the power supply module 230 may supply power to the multi-system combiner and the antenna, so as to ensure the normal operation of the multi-system combiner 210 and the antenna 220.
According to the indoor distributed single-channel coverage system, three first signals with different frequencies and at least four second signals with the same frequency can be received through the multi-system combiner, the three first signals with different frequencies are combined with the at least one second signal, and the three first signals are transmitted through the first antenna oscillator of the antenna. And simultaneously, converting at least three second signals with the same frequency into at least three second signals with different frequencies through a first frequency conversion filter unit, and sending the at least three second signals to the antenna, wherein the second frequency conversion filter unit of the antenna converts the at least three second signals with different frequencies into at least three second signals with the same frequency, and the at least three second signals are respectively transmitted through a second antenna oscillator of the antenna, a third antenna oscillator of the antenna and a fourth antenna oscillator of the antenna. Therefore, 5G 4 x 4MIMO can be realized on the existing single-channel indoor distribution system, the signal quality of the indoor distribution system is improved, and the user perception experience is improved.
It should be clear that the present application is not limited to the particular arrangements and processes described above and illustrated in the drawings. A detailed description of known systems is omitted here for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the system of the present application is not limited to the specific steps described and illustrated, and one skilled in the art can make various changes, modifications, and additions, or change the order between steps, after appreciating the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be different from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present application are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, which are intended to be included in the scope of the present application.
Claims (5)
1. An indoor distributed single-path coverage system is characterized by comprising a multi-system combiner and an antenna;
the multi-system combiner is used for receiving three first signals with different frequencies and at least four second signals with the same frequency, combining the three first signals with different frequencies with at least one second signal and transmitting the three first signals through a first antenna oscillator of the antenna;
at least three second signals with the same frequency are transmitted through a second antenna element of the antenna, a third antenna element of the antenna and a fourth antenna element of the antenna respectively;
the multi-system combiner comprises a first variable frequency filtering unit, and the antenna comprises a second variable frequency filtering unit;
the first frequency conversion filtering unit is used for respectively converting at least three second signals with the same frequency, wherein the frequencies of the at least three second signals after frequency conversion are at least three different frequencies;
the second frequency conversion filter unit is used for respectively converting the at least three second signals subjected to frequency conversion by the first frequency conversion filter unit, wherein the frequencies of the at least three second signals subjected to frequency conversion by the second frequency conversion filter unit are the same;
the frequencies of the at least three second signals subjected to frequency conversion by the first frequency conversion filter unit are at least 40MHz apart;
the multi-system combiner includes:
a monitoring unit for monitoring power information and frequency information of the three first signals of different frequencies and the at least four second signals of the same frequency;
when the power or the frequency of the three first signals with different frequencies and the at least four second signals with the same frequency deviate from a preset value, the monitoring unit is further used for correcting the power or the frequency according to the preset value;
the antenna comprises:
the information acquisition unit is used for acquiring radio frequency power information and frequency information of each oscillator in the antenna;
the information acquisition unit is further configured to transmit the radio frequency power information and the frequency information of each vibrator in the antenna to the monitoring unit.
2. The system of claim 1, further comprising a coupler for distributing radio frequency power for signals transmitted by the first antenna element, the second antenna element, the third antenna element, and the fourth antenna element of the antenna.
3. The system of claim 2, wherein the coupler satisfies radio frequency index requirement information of the system, wherein the radio frequency index requirement information includes at least one of a degree of coupling, an insertion loss, a standing wave ratio, or a passive intermodulation.
4. The system of claim 1, wherein the antenna is a multi-polarized antenna;
the first antenna oscillator is an oscillator vertical to the ground plane;
the first antenna oscillator is an oscillator horizontal to the ground plane;
the first antenna oscillator is an oscillator which is offset by 45 degrees clockwise relative to the ground plane;
the first antenna element is an element offset 45 degrees counter-clockwise with respect to the ground plane.
5. The system of claim 1, further comprising a power module;
the power supply module is used for supplying power to the multi-system combiner and the antenna.
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