CN214429537U - Relay device and relay system - Google Patents
Relay device and relay system Download PDFInfo
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- CN214429537U CN214429537U CN202120610892.2U CN202120610892U CN214429537U CN 214429537 U CN214429537 U CN 214429537U CN 202120610892 U CN202120610892 U CN 202120610892U CN 214429537 U CN214429537 U CN 214429537U
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Abstract
The utility model provides a relay equipment and relay system relates to the communication technology field, can guarantee relay equipment's coverage effect, improves user's experience. The relay device includes: the frequency conversion device comprises a first transceiving unit, a first frequency shift unit and a second transceiving unit; the first transceiver unit is connected with the second transceiver unit through the first frequency shift unit; the first transceiving unit is used for acquiring a first signal; the frequency of the first signal is a first frequency; the first frequency shifting unit is used for adjusting the frequency of the first signal acquired by the first transceiving unit to a second frequency to obtain a second signal; the second frequency is different from the first frequency; and the second transceiving unit is used for transmitting a second signal. The embodiment of the utility model provides a repeater, the signal frequency of receipt is different with the signal frequency of transmission, consequently can not produce the interference between the signal of signal and transmission received, can guarantee repeater's coverage effect, improves user's experience.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a relay equipment and relay system.
Background
The relay device is a signal amplification device capable of further amplifying the base station signal, thereby extending the coverage of the signal.
Existing relay devices receive the same frequency of signal as the transmitted signal. Because interference is generated between signals with the same frequency, the coverage effect of the relay device will be affected under the condition that the frequency of the signal received by the relay device is the same as the frequency of the signal transmitted by the relay device, resulting in poor user experience.
SUMMERY OF THE UTILITY MODEL
The utility model provides a relay equipment and relay system can guarantee relay equipment's coverage effect, improves user's experience.
In order to achieve the above purpose, the utility model provides a following technical scheme:
in a first aspect, the present invention provides a relay device, comprising a first transceiving unit, a first frequency shift unit, and a second transceiving unit; the first transceiver unit is connected with the second transceiver unit through the first frequency shift unit; the first transceiver unit is used for acquiring a first signal; the frequency of the first signal is a first frequency; the first frequency shift unit is configured to adjust the frequency of the first signal acquired by the first transceiver unit to a second frequency to obtain a second signal; the second frequency is different from the first frequency; the second transceiver is configured to transmit the second signal.
The embodiment of the utility model provides a relay equipment, owing to including first frequency shift unit, can launch for the frequency of difference with the signal frequency adjustment that relay equipment received to the signal frequency that relay equipment received is different with the signal frequency of transmission. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal of the signal that relay equipment received and transmission, can guarantee relay equipment's coverage effect, improve user's experience.
Further, the utility model provides a relay device still includes receiving antenna; the receiving antenna is connected with the first transceiving unit; the first transceiver unit acquires a first signal through the receiving antenna.
The embodiment of the utility model provides a relay, owing to including receiving antenna, first receiving and dispatching unit acquires first signal through receiving antenna, need not use the radio frequency cable to acquire first signal to make relay simple to operate and mounted position nimble, and can save installation cost.
Furthermore, the relay device provided by the utility model also comprises a transmitting antenna; the transmitting antenna is connected with the second transceiving unit; the second transceiving unit transmits a second signal through the transmitting antenna.
The embodiment of the utility model provides a relay, owing to including transmitting antenna, second receiving and dispatching unit passes through transmitting antenna transmission second signal, need not use the radio frequency cable to launch the second signal to make relay simple to operate and mounted position nimble, and can save installation cost.
In a second aspect, the present invention provides a relay system comprising a first relay device and at least one second relay device; the first relay device comprises a first transceiver unit, a first frequency shift unit and a second transceiver unit, wherein the first transceiver unit is connected with the second transceiver unit through the first frequency shift unit; the second relay device comprises a third transceiver unit, a second frequency shift unit and a fourth transceiver unit; the third transceiver unit is connected with the fourth transceiver unit through the second frequency shift unit; the first transceiver unit is configured to acquire a first signal; the frequency of the first signal is a first frequency; the first frequency shift unit is configured to adjust the frequency of the first signal to a second frequency to obtain a second signal; the second frequency is different from the first frequency; the second transceiver unit is configured to transmit the second signal; the third transceiver unit is configured to acquire the second signal; the second frequency shift unit is configured to adjust the frequency of the second signal to the first frequency to obtain a third signal; the fourth transceiving unit is configured to transmit the third signal.
The embodiment of the utility model provides a relay system, owing to including first frequency shift unit and second frequency shift unit, first frequency shift unit can be launched for the frequency of difference with the signal frequency adjustment that first relay equipment received to the signal frequency that first relay equipment received is different with the signal frequency of transmission, and the second frequency shift unit can be launched for the frequency of difference with the signal frequency adjustment that second relay equipment received, thereby the signal frequency that second relay equipment received is different with the signal frequency of transmission. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal that first relay equipment and second relay equipment among the relay system received and the signal of transmission, can guarantee relay system's coverage effect, improve user's experience.
Further, in the relay system provided by the present invention, the first relay device further includes a first receiving antenna; the first receiving antenna is connected with the first transceiving unit; the first transceiver unit acquires a first signal through the first receiving antenna.
The embodiment of the utility model provides a relay system, because first relay equipment includes first receiving antenna, first receiving and dispatching unit acquires first signal through first receiving antenna, need not use the radio frequency cable to acquire first signal to make first relay equipment simple to operate and mounted position nimble, and can save installation cost.
Further, in the relay system provided by the present invention, the first relay device further includes a first transmitting antenna; the first transmitting antenna is connected with the second transceiving unit; the second transceiver unit transmits a second signal through the first transmitting antenna.
The embodiment of the utility model provides a relay system, because first repeater includes first transmitting antenna, second receiving and dispatching unit does not need to use the radio frequency cable to launch the second signal through first transmitting antenna transmission second signal to make first repeater simple to operate and mounted position nimble, and can save installation cost.
Further, in the relay system provided by the present invention, the second relay device further includes a second receiving antenna; the second receiving antenna is connected with the third transceiving unit; the third transceiver unit acquires a second signal through the second receiving antenna.
The embodiment of the utility model provides a relay system, because second repeater includes second receiving antenna, third receiving and dispatching unit acquires the second signal through second receiving antenna, need not use the radio frequency cable to acquire the second signal to make second repeater simple to operate and mounted position nimble, and can save installation cost.
Further, in the relay system provided by the present invention, the second relay device further includes a second transmitting antenna; the second transmitting antenna is connected with the fourth transceiving unit; the fourth transceiving unit transmits a third signal through the second transmitting antenna.
The embodiment of the utility model provides a relay system, because second repeater includes second transmitting antenna, fourth transceiver unit passes through second transmitting antenna transmission third signal, need not use the radio frequency cable to transmit the third signal to make second repeater simple to operate and mounted position nimble, and can save installation cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional indoor relay system;
fig. 2 is a first schematic structural diagram of a conventional digital wireless access micro indoor relay system;
fig. 3 is a schematic structural diagram of a conventional digital wireless access micro indoor relay system;
fig. 4 is a third schematic structural diagram of a conventional digital wireless access micro indoor relay system;
fig. 5 is a schematic structural diagram of a relay device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a relay device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a relay device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a relay device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a relay system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
For the convenience of clear description of the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, words such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and actions, and those skilled in the art can understand that words such as "first" and "second" are not used to limit the number and execution sequence.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," in an embodiment of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. It should be noted that, in the embodiments of the present invention, "corresponding" and "corresponding" may be sometimes used in combination, and it should be noted that, when the difference is not emphasized, the intended meaning is consistent.
The relay device is a signal amplification device capable of further amplifying the base station signal, thereby extending the coverage of the signal. Currently, a relay system is usually configured by a relay device to further amplify a base station signal, so as to extend the coverage of the signal.
Existing relay systems include conventional indoor relay systems and digital wireless access micro indoor relay systems.
As shown in fig. 1, the conventional indoor relay system 10 includes a base station 101, a repeater 102, a coupler/power divider 103, a first coupler 104, a first coverage antenna 105, a second coupler 106, a second coverage antenna 107, a first power divider 108, a third antenna 109, a second power divider 110, a fourth antenna 111, a third coupler 112, and a fifth antenna 113.
The coupler/power divider 103 is connected to the first coupler 104 and the first power divider 108, the first coupler 104 and the second coupler 106, the first power divider 108 and the second power divider 110, and the second power divider 110 and the third coupler 112 through radio frequency cables.
The second coverage antenna 107 includes three antennas. The fifth antenna 113 includes two antennas.
The base station 101 or the repeater 102 is used as a source input, and a source signal is split by the coupler/power splitter 103. The signal branched by the coupler/power divider 103 is transmitted by a radio frequency cable, enters the first coverage antenna 105 through the first coupler 104 for transmission, enters the second coverage antenna 107 through the second coupler 106 for transmission, enters the third antenna 109 through the first power divider 108 for transmission, enters the fourth antenna 111 through the second power divider 110 for transmission, enters the third antenna 109 through the first power divider 108 for transmission, and enters the fifth antenna 113 through the third coupler 112 for transmission.
As shown in fig. 2, the digital radio access micro indoor relay system 20 includes a base station 201, a receiving antenna 202, an access unit 203, an extension unit 204, four coverage units 205, and four coverage antennas 206.
The access unit 203 receives signals of the outdoor base station through the receiving antenna 202, and the access unit 203 transmits the signals to the expansion unit 204 through the radio frequency cable; the expansion unit 204 is internally provided with a four-centimeter device, transmits the signal to each covering unit 205 through a radio frequency cable after shunting, and feeds power to each unit of the system by using the radio frequency cable; the coverage unit 205 performs signal coverage on the target area through the coverage antenna 206.
Illustratively, in frequency division duplex-long term evolution (FDD-LTE), the access unit 203 and the coverage unit 205 include two sets of radio frequency links, i.e., uplink and downlink, respectively.
As shown in fig. 3, the access unit 203 includes a first duplexer 30, a first low noise amplifier 31, a first sound table amplifier 32, a first voltage-controlled gain amplifier 33, a first analog-to-digital converter 34, a field programmable gate array 35, a first digital-to-analog converter 36, a second voltage-controlled gain amplifier 37, a second sound table filter 38, a first power amplifier 39, a second duplexer 40, a second power amplifier 41, a fourth sound table filter 42, a fourth voltage-controlled gain amplifier 43, a second digital-to-analog converter 44, a second analog-to-digital converter 45, a third voltage-controlled gain amplifier 46, a third sound table filter 47, and a second low noise amplifier 48.
The first duplexer 30, the first low noise amplifier 31, the first acoustic meter amplifier 32, the first voltage controlled gain amplifier 33, the first analog-to-digital converter 34, the field programmable gate array 35, the first digital-to-analog converter 36, the second voltage controlled gain amplifier 37, the second acoustic meter filter 38, the first power amplifier 39, and the second duplexer 40 form a downlink. The downlink receives a wireless signal transmitted by an outdoor base station through an access antenna 202, amplifies, filters, and transmits the amplified and filtered wireless signal to an extension unit 204 through a radio frequency cable.
The second duplexer 40, the second low noise amplifier 48, the third acoustic surface filter 47, the third voltage controlled gain amplifier 46, the second analog-to-digital converter 45, the field programmable gate array 35, the second digital-to-analog converter 44, the fourth voltage controlled gain amplifier 43, the fourth acoustic surface filter 42, the second power amplifier 41, and the first duplexer 30 constitute an uplink. The uplink receives signals of the expansion unit 204 through the radio frequency cable, and the signals are amplified, filtered and transmitted to the base station 201 through the receiving antenna 202.
As shown in fig. 3, the access unit 203 includes a first duplexer 30, a first low noise amplifier 31, a first sound table amplifier 32, a first voltage-controlled gain amplifier 33, a first analog-to-digital converter 34, a field programmable gate array 35, a first digital-to-analog converter 36, a second voltage-controlled gain amplifier 37, a second sound table filter 38, a first power amplifier 39, a second duplexer 40, a second power amplifier 41, a fourth sound table filter 42, a fourth voltage-controlled gain amplifier 43, a second digital-to-analog converter 44, a second analog-to-digital converter 45, a third voltage-controlled gain amplifier 46, a third sound table filter 47, and a second low noise amplifier 48.
The first duplexer 30, the first low noise amplifier 31, the first acoustic meter amplifier 32, the first voltage controlled gain amplifier 33, the first analog-to-digital converter 34, the field programmable gate array 35, the first digital-to-analog converter 36, the second voltage controlled gain amplifier 37, the second acoustic meter filter 38, the first power amplifier 39, and the second duplexer 40 form a downlink of the access unit 203. The downlink of the access unit 203 receives the wireless signals transmitted by the outdoor base station through the access antenna 202, amplifies and filters the wireless signals, and transmits the amplified and filtered wireless signals to the extension unit 204 through the radio frequency cable.
The second duplexer 40, the second low noise amplifier 48, the third acoustic surface filter 47, the third voltage controlled gain amplifier 46, the second analog-to-digital converter 45, the field programmable gate array 35, the second digital-to-analog converter 44, the fourth voltage controlled gain amplifier 43, the fourth acoustic surface filter 42, the second power amplifier 41, and the first duplexer 30 constitute an uplink of the access unit 203. The uplink of the access unit 203 receives the signal of the extension unit 204 through the radio frequency cable, amplifies and filters the signal, and transmits the amplified and filtered signal to the base station 201 through the receiving antenna 202.
As shown in fig. 4, the overlay unit 205 includes a first duplexer 50, a first low noise amplifier 51, a first sound table amplifier 52, a first voltage-controlled gain amplifier 53, a first analog-to-digital converter 54, a field programmable gate array 55, a first digital-to-analog converter 56, a second voltage-controlled gain amplifier 57, a second sound table filter 58, a first power amplifier 59, a second duplexer 60, a second power amplifier 61, a fourth sound table filter 62, a fourth voltage-controlled gain amplifier 63, a second digital-to-analog converter 64, a second analog-to-digital converter 65, a third voltage-controlled gain amplifier 66, a third sound table filter 67, and a second low noise amplifier 68.
The first duplexer 50, the first low noise amplifier 51, the first acoustic table amplifier 52, the first voltage controlled gain amplifier 53, the first analog-to-digital converter 54, the field programmable gate array 55, the first digital-to-analog converter 56, the second voltage controlled gain amplifier 57, the second acoustic table filter 58, the first power amplifier 59, and the second duplexer 60 constitute a downlink of the overlay unit 205. The downlink of the covering unit 205 receives the signal transmitted by the extension unit 204 through the radio frequency cable, amplifies the signal, filters the signal, and transmits the amplified signal through the covering antenna 206.
The second duplexer 60, the second low noise amplifier 68, the third acoustic surface filter 67, the third voltage controlled gain amplifier 66, the second analog-to-digital converter 65, the field programmable gate array 65, the second digital-to-analog converter 64, the fourth voltage controlled gain amplifier 63, the fourth acoustic surface filter 62, the second power amplifier 61, and the first duplexer 50 form an uplink of the overlay unit 205. The uplink of the coverage unit 205 receives an uplink signal sent by the mobile terminal through the coverage antenna 206, and transmits the uplink signal to the extension unit 204 through the radio frequency cable after amplification and filtering.
However, the conventional indoor relay system is a passive system, all the radio frequency devices in the system are passive devices, and the working frequency band of the passive devices and the coverage antenna in the conventional indoor relay system is only up to 2700 MHz. If a newly built or worn 5G indoor relay system needs to be additionally provided with a 5G information source, a coupler and a power divider supporting a 5G frequency band need to be replaced, a covering antenna also needs to be replaced, and the manufacturing cost is extremely high; meanwhile, the traditional indoor relay system cannot achieve 100% coverage, a weak coverage area and a blind coverage area can be generated, the number of indoor distributed coverage antennas needs to be increased, and construction is troublesome and the transformation cost is high; due to the difference of indoor and outdoor physical cells, ping-pong effect may occur in the areas covering weak areas, entrances and exits, etc., causing the user terminal to frequently switch and occupy the cells, causing trawling or call drop.
In the digitalized wireless access micro indoor relay system, all the access unit to the extension unit and all the extension unit to the coverage unit are connected by radio frequency cables, wiring and routing in construction are complicated, and installation positions are rigid; all units of the system are uniformly powered by the expansion units, and the inspection and maintenance are difficult if short circuit or power failure caused by equipment failure occurs.
In the digitalized wireless access micro indoor relay system, the input signal frequency and the output signal frequency of the access unit and the covering unit are consistent, so that the self-excitation of the micro indoor distribution system is probably caused by the insecure connection or the unreasonable installation position, and the covering effect is influenced.
Therefore, the frequency of the signal received by the existing relay device is the same as the frequency of the signal transmitted. Because interference is generated between signals with the same frequency, the coverage effect of the relay device will be affected under the condition that the frequency of the signal received by the relay device is the same as the frequency of the signal transmitted by the relay device, resulting in poor user experience.
To the above problem, the embodiment of the utility model provides a relay device and relay system, because relay device includes first frequency shift unit, can transmit for different frequencies with the signal frequency adjustment that relay device received to the signal frequency that relay device received is different with the signal frequency of transmission. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal of the signal that relay equipment received and transmission, can guarantee relay equipment's coverage effect, improve user's experience.
The utility model provides a relay device 500, as shown in FIG. 5. The relay device 500 includes a first transceiver unit 501, a first frequency shift unit 502, and a second transceiver unit 503. The first transceiver unit 501 and the second transceiver unit 503 are connected through the first frequency shift unit 502.
The first transceiver unit 501 is configured to acquire a first signal. The frequency of the first signal is a first frequency.
Optionally, the first signal may be a signal sent by a base station, and may also be a signal sent by other relay devices.
Optionally, the first signal may be a 5G signal, and the frequency of the first signal is 3.4 gigahertz (GHz) -3.6 GHz.
The first frequency shifting unit 502 is configured to adjust the frequency of the first signal acquired by the first transceiver unit 501 to a second frequency to obtain a second signal. The second frequency is different from the first frequency.
Optionally, when the first signal is a 5G signal and the frequency of the first signal is 3.4 gigahertz (GHz) -3.6GHz, the second frequency may be a dedicated frequency band for a 5G indoor coverage signal, that is, the second frequency may be 3.3GHz-3.4 GHz. Since the dedicated frequency band for 5G indoor coverage signals is pure and non-interfering at present, no interference is caused by other signals when the second frequency (i.e. 3.3GHz-3.4GHz) is adopted for transmitting signals.
It should be noted that the relay device 500 includes an uplink and a downlink. The first frequency shift unit 502 may adjust the frequency of the first signal acquired by the first transceiving unit 501 to the second frequency in the downlink. In the uplink, the first frequency shifting unit 502 may adjust the frequency of the signal acquired by the second transceiver unit 503 to a first frequency.
The signal acquired by the second transceiver unit 503 may be a signal acquired from a terminal device of a user, or may be a signal acquired from another relay device.
A second transceiver unit 503, configured to transmit a second signal.
Since the relay device includes the first frequency shift unit, the frequency of the signal received by the relay device can be adjusted to a different frequency for transmission, so that the frequency of the signal received by the relay device is different from the frequency of the signal transmitted. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal of the signal that relay equipment received and transmission, can guarantee relay equipment's coverage effect, improve user's experience.
Further, in conjunction with fig. 5, as shown in fig. 6, the relay device 500 further includes a receiving antenna 504. The receiving antenna 504 is connected to the first transceiver unit 501.
The first transceiving unit 501 acquires a first signal through the receiving antenna 504.
The first receiving and sending unit obtains the first signal through the receiving antenna without using a radio frequency cable, so that the relay equipment is convenient to install and flexible in installation position, and installation cost can be saved.
Further, in conjunction with fig. 5, as shown in fig. 7, the relay device 500 further includes a transmitting antenna 505. The transmitting antenna 505 is connected to the second transceiving unit 503. The second transceiving unit 503 transmits a second signal through the transmitting antenna 505.
Because the relay equipment comprises the transmitting antenna, the second receiving and transmitting unit transmits the second signal through the transmitting antenna without using a radio frequency cable to transmit the second signal, the relay equipment is convenient to install and flexible in installation position, and the installation cost can be saved.
Illustratively, in conjunction with fig. 5, as shown in fig. 8, the relay device 500 further includes a first rf switch 70, a second rf switch 90, and a control unit 506.
The first transceiver unit 501 includes a first low noise amplifier 71, a first acoustic surface amplifier 72, a first voltage-controlled gain amplifier 73, a fourth voltage-controlled gain amplifier 83, a fourth acoustic surface filter 82, and a second power amplifier 81.
The first frequency shift unit 502 includes a mixer 89, a crystal oscillator 90, and a mixer 91.
The second transceiver unit 503 includes a second voltage-controlled gain amplifier 77, a second acoustic surface filter 78, a first power amplifier 79, a third voltage-controlled gain amplifier 86, a third acoustic surface filter 87, and a second low noise amplifier 88.
The control unit 506 comprises a first analog-to-digital converter 74, a field programmable gate array 75, a first digital-to-analog converter 76, a second digital-to-analog converter 84 and a second analog-to-digital converter 85.
The first radio frequency switch 70, the first low noise amplifier 71, the first acoustic meter amplifier 72, the first voltage controlled gain amplifier 73, the first analog-to-digital converter 74, the field programmable gate array 75, the first digital-to-analog converter 76, the second voltage controlled gain amplifier 77, the second acoustic meter filter 78, the first power amplifier 79, and the second radio frequency switch 90 constitute a downlink of the relay device 500.
The downlink of the relay device 500 is configured to receive a 5G signal transmitted by the outdoor base station through the receiving antenna, filter and amplify the received signal, perform frequency shift processing, and transmit the frequency shifted signal through the transmitting antenna.
The second radio frequency switch 80, the second low noise amplifier 88, the third sound table amplifier 87, the third voltage controlled gain amplifier 86, the second analog-to-digital converter 85, the field programmable gate array 75, the second digital-to-analog converter 84, the fourth voltage controlled gain amplifier 83, the fourth sound table filter 82, the second power amplifier 81, and the first radio frequency switch 70 constitute an uplink of the relay device 500.
The uplink of the relay device 500 receives signals sent by the terminal device of the user or other relay devices through the transmitting antenna, performs filtering amplification, and sends the recovered 5G signals to the outdoor base station through the receiving antenna after frequency shift recovery processing.
The first rf switch 70 is responsible for docking with the receiving antenna, and mainly realizes switching between uplink and downlink signals at the base station.
The first transceiver unit 501 is responsible for interfacing with the first rf switch 70 and the first frequency shifter unit 502. The first transceiver unit 501 is mainly responsible for low noise amplification, filtering, level control, and the like of the downlink signal of the base station received by the first rf switch 70, and transmits the processed signal to the first frequency shift unit 502.
The first frequency shift unit 502 is interfaced with the first transceiver unit 501 and the control unit 506. A Local Oscillation (LO) is sent from a crystal oscillator 90 into a mixer 89 and a mixer 91. In downlink, the first frequency shift unit 502 is mainly responsible for performing frequency shift on the downlink signal processed by the first transceiver unit 501, and sending the frequency shift signal to the control unit 506. In uplink, the first frequency shifting unit 502 frequency-shifts the uplink signal processed by the second transceiver unit 503 to the original 5G frequency, and sends the restored signal to the first transceiver unit 501.
The control unit 506 interfaces with the first frequency shift unit 502 and the second transceiver unit 503. The control unit 506 is mainly responsible for analog-to-digital/digital-to-analog conversion of the frequency shift signal, and sends a control signal for controlling uplink and downlink gains, power, and the like to the first transceiver unit 501 or the second transceiver unit 503.
The second transceiver unit 503 is responsible for interfacing with the control unit 506 and the second rf switch 80. In the downlink, the second transceiver unit 503 is mainly responsible for amplifying, filtering, level controlling, and the like the frequency-shifted rf signal, and sends the rf signal to the second rf switch 80. In uplink, the second transceiver unit 503 is mainly responsible for performing low noise amplification, filtering, level control, and the like on the uplink signal received by the second rf switch 80 by frequency shifting, and sending the processed signal to the control unit 506.
The utility model also provides a relay system. As shown in fig. 9, the relay system 900 provided by the present invention includes a first relay device 901, at least one second relay device 902, and a base station 903. Only four second relay apparatuses 902 are schematically illustrated in the figure.
The first relay apparatus 901 includes a first transceiver unit 903, a first frequency shift unit 904, a second transceiver unit 905, a first receiving antenna 906, and a first transmitting antenna 907. The first transceiver 903 and the second transceiver 905 are connected through a first frequency shift unit 904. The first transceiver 903 is connected to the first receiving antenna 906, and the second transceiver 905 is connected to the first transmitting antenna 907.
The second relay apparatus 902 includes a third transceiving unit 908, a second frequency shift unit 909, a fourth transceiving unit 910, a second receiving antenna 911, and a second transmitting antenna 912. The third transceiving unit 908 and the fourth transceiving unit 910 are connected through a second frequency shifting unit 909. The third transceiver unit 908 is connected to the second receiving antenna 911, and the fourth transceiver unit 910 is connected to the second transmitting antenna 912.
A first transceiver 903, configured to acquire a first signal.
The first transceiver unit 903 is connected to a first receiving antenna 906. The first transceiving unit 903 receives a first signal through the first receiving antenna 906.
Because the first relay equipment comprises the first receiving antenna, the first receiving and transmitting unit obtains the first signal through the first receiving antenna without using a radio frequency cable, the first relay equipment is convenient to install and flexible in installation position, and the installation cost can be saved.
The first signal may be a signal transmitted by a base station. The frequency of the first signal is a first frequency.
Illustratively, when the first signal is a 5G signal, the frequency of the first signal is 3.4GHz-3.6 GHz.
The first frequency shifting unit 904 is configured to adjust the frequency of the first signal to a second frequency to obtain a second signal. The second frequency is different from the first frequency.
Optionally, when the first signal is a 5G signal, the frequency of the first signal is 3.4GHz-3.6GHz, and the second frequency may be 3.3GHz-3.4 GHz.
A second transceiving unit 905, configured to transmit a second signal.
The first relay apparatus 901 includes a first transmission antenna 907. The second transceiver 905 is connected to the first transmitting antenna 907. The second transceiving unit 905 transmits a second signal through the first transmitting antenna 907.
Because the first relay equipment comprises the first receiving antenna, the first receiving and transmitting unit obtains the first signal through the first receiving antenna without using a radio frequency cable, the first relay equipment is convenient to install and flexible in installation position, and the installation cost can be saved.
A third transceiving unit 906, configured to acquire the second signal.
The second relay device 902 comprises a second receiving antenna 911. The second transceiver unit 902 is connected to a second receiving antenna 911. The second transceiving unit 905 receives the second signal through the second receiving antenna 911.
The second relay equipment comprises the second receiving antenna, the third transceiving unit obtains the second signal through the second receiving antenna, and the radio frequency cable is not needed to obtain the second signal, so that the second relay equipment is convenient to install and flexible in installation position, and installation cost can be saved.
The second frequency shifting unit 907 is configured to adjust the frequency of the second signal to the first frequency to obtain a third signal.
A fourth transceiving unit 908 for transmitting the third signal.
The second relay equipment comprises the second transmitting antenna, the fourth transceiving unit transmits the third signal through the second transmitting antenna without using a radio frequency cable to transmit the third signal, so that the second relay equipment is convenient to install and flexible in installation position, and the installation cost can be saved.
The embodiment of the utility model provides a relay system, owing to including first frequency shift unit and second frequency shift unit, first frequency shift unit can be launched for the frequency of difference with the signal frequency adjustment that first relay equipment received to the signal frequency that first relay equipment received is different with the signal frequency of transmission, and the second frequency shift unit can be launched for the frequency of difference with the signal frequency adjustment that second relay equipment received, thereby the signal frequency that second relay equipment received is different with the signal frequency of transmission. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal that first relay equipment and second relay equipment among the relay system received and the signal of transmission, can guarantee relay system's coverage effect, improve user's experience.
The configurations and the included components of the first relay apparatus 901 and the second relay apparatus 902 may be the same or different. The structures of the first relay device 901 and the second relay device 902 and the included components may refer to the relay device shown in fig. 8, and are not described herein again.
That is, the principle of the first relay device 901 and the principle of the second relay device 902 are the same, except that uplink and downlink frequency shift mechanisms of the first relay device 901 and the second relay device 902 are opposite, that is, when the downlink is performed, the first relay device 901 adjusts the frequency of the first signal acquired from the base station to the second frequency for transmission, after the second relay device 902 acquires the signal of the second frequency, the frequency of the signal of the second frequency is adjusted to the first frequency, and the second relay device 902 transmits the signal of the adjusted first frequency, so that the terminal can acquire the signal of the first frequency transmitted by the second relay device 902. In uplink, the second relay device 902 adjusts the frequency of the first signal acquired from the terminal to the second frequency for transmission, after the first relay device 901 acquires the signal of the second frequency, the frequency of the signal of the second frequency is adjusted to the first frequency, and the first relay device 901 transmits the signal of the adjusted first frequency, so that the base station can acquire the signal of the first frequency transmitted by the first relay device 901.
The embodiment of the utility model provides a repeater and relay system because the repeater includes first frequency shift unit, can launch the signal frequency adjustment that the repeater received for different frequencies to the signal frequency that the repeater received is different with the signal frequency of transmission. Therefore, the embodiment of the utility model provides a can not produce the interference between the signal of the signal that relay equipment received and transmission, can guarantee relay equipment's coverage effect, improve user's experience.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention.
Claims (8)
1. A relay device is characterized in that the relay device comprises a first transceiver unit, a first frequency shift unit and a second transceiver unit; the first transceiver unit is connected with the second transceiver unit through the first frequency shift unit;
the first transceiver unit is used for acquiring a first signal; the frequency of the first signal is a first frequency;
the first frequency shift unit is configured to adjust the frequency of the first signal acquired by the first transceiver unit to a second frequency to obtain a second signal; the second frequency is different from the first frequency;
the second transceiver unit is configured to transmit the second signal.
2. The relay device of claim 1, wherein the relay device further comprises a receive antenna; the receiving antenna is connected with the first transceiving unit;
the first transceiver unit acquires the first signal through the receiving antenna.
3. The relay device of claim 1, wherein the relay device further comprises a transmit antenna; the transmitting antenna is connected with the second transceiving unit;
and the second transceiving unit transmits the second signal through the transmitting antenna.
4. A relay system, characterized in that the relay system comprises a first relay device and at least one second relay device; the first relay device comprises a first transceiver unit, a first frequency shift unit and a second transceiver unit, wherein the first transceiver unit is connected with the second transceiver unit through the first frequency shift unit; the second relay device comprises a third transceiver unit, a second frequency shift unit and a fourth transceiver unit; the third transceiver unit and the fourth transceiver unit are connected through the second frequency shift unit;
the first transceiver unit is used for acquiring a first signal; the frequency of the first signal is a first frequency;
the first frequency shift unit is configured to adjust the frequency of the first signal to a second frequency to obtain a second signal; the second frequency is different from the first frequency;
the second transceiver unit is configured to transmit the second signal;
the third transceiving unit is configured to acquire the second signal;
the second frequency shift unit is configured to adjust the frequency of the second signal to the first frequency to obtain a third signal;
the fourth transceiving unit is configured to transmit the third signal.
5. The relay system according to claim 4, wherein said first relay device further comprises a first receiving antenna; the first receiving antenna is connected with the first transceiving unit;
the first transceiver unit acquires the first signal through the first receiving antenna.
6. The relay system according to claim 4, wherein said first relay device further comprises a first transmission antenna; the first transmitting antenna is connected with the second transceiving unit;
the second transceiving unit transmits the second signal through the first transmitting antenna.
7. The relay system according to claim 4, wherein said second relay device further comprises a second receiving antenna; the second receiving antenna is connected with the third transceiving unit;
and the third transceiver unit acquires the second signal through the second receiving antenna.
8. The relay system according to claim 4, wherein said first relay device further comprises a second transmitting antenna; the second transmitting antenna is connected with the fourth transceiving unit;
and the fourth transceiving unit transmits the third signal through the second transmitting antenna.
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| CN202120610892.2U CN214429537U (en) | 2021-03-22 | 2021-03-22 | Relay device and relay system |
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| CN202120610892.2U CN214429537U (en) | 2021-03-22 | 2021-03-22 | Relay device and relay system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114268354A (en) * | 2021-11-29 | 2022-04-01 | 成都市联洲国际技术有限公司 | Wireless communication device and wireless communication system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114268354A (en) * | 2021-11-29 | 2022-04-01 | 成都市联洲国际技术有限公司 | Wireless communication device and wireless communication system |
| CN114268354B (en) * | 2021-11-29 | 2024-03-29 | 成都市联洲国际技术有限公司 | Wireless communication device and wireless communication system |
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