CN111447050A - Signal enhancement system and duplex communication implementation method of signal enhancement system - Google Patents
Signal enhancement system and duplex communication implementation method of signal enhancement system Download PDFInfo
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- CN111447050A CN111447050A CN202010252964.0A CN202010252964A CN111447050A CN 111447050 A CN111447050 A CN 111447050A CN 202010252964 A CN202010252964 A CN 202010252964A CN 111447050 A CN111447050 A CN 111447050A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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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
- H04B7/10—Polarisation diversity; Directional diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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Abstract
The invention provides a signal enhancement system and a duplex communication method based on the signal enhancement system, wherein the signal enhancement system comprises a downlink signal receiving processing transmitting link group and an uplink signal receiving processing transmitting link group, and the downlink signal receiving processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group and a downlink signal transmitting antenna group; the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group and an uplink signal transmitting antenna group; the downlink signal processing link group at least comprises a signal processing link; the uplink signal processing link group at least comprises one signal processing link; the downlink signal receiving and processing transmitting link group and the uplink signal receiving and processing transmitting link group are independent to the signal receiving, enhancing and transmitting. The invention can improve the signal transmission rate.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a signal enhancement system and a duplex communication implementation method for the signal enhancement system.
Background
With the introduction of 5G networks, high networking cost is always a problem in commercialization of 5G communication networks. The signal amplifier is an indispensable part in the 2G, 3G and 4G communication networks, and effectively reduces the construction cost of the 2G, 3G and 4G communication networks. In the 5G era, 5G signal amplifiers of Sub6GHz and mmWave (signal amplifiers are a specific application of signal enhancement systems) have also been of great interest. However, in the early stage of 5G network construction, the invention is promoted because the conventional devices are missing and the synchronization module cannot be obtained in a short time or the price is high.
Disclosure of Invention
Therefore, a technical scheme for signal enhancement needs to be provided to solve the problem that duplex communication is difficult to realize in a 5G communication system due to multiplexing of the same group of antennas in the existing uplink signal and downlink signal transmission. And a signal receiving processing transmitting link group is provided, wherein a plurality of independent signal processing links realize the enhancement of the multi-path signal flow, thereby achieving the purpose of improving the transmission rate.
To solve the above problems and achieve the above object, the inventors provide a signal enhancement system comprising: a downlink signal receiving and transmitting link group and an uplink signal receiving and transmitting link group;
the downlink signal receiving and processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group and a downlink signal transmitting antenna group; the downlink signal receiving antenna group comprises at least one downlink signal receiving antenna, and the downlink signal transmitting antenna group comprises at least one downlink signal transmitting antenna; the downlink signal processing link group at least comprises a downlink signal processing link;
the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group and an uplink signal transmitting antenna group; the uplink signal receiving antenna group comprises at least one uplink signal receiving antenna, and the uplink signal transmitting antenna group comprises at least one uplink signal transmitting antenna; the uplink signal processing link group at least comprises an uplink signal processing link;
the downlink signal receiving and processing transmitting link group and the uplink signal receiving and processing transmitting link group are independent to the signal receiving, enhancing and transmitting.
As an optional embodiment, the number of antennas included in the downlink signal receiving antenna group and the downlink signal transmitting antenna group is multiple;
the downlink signal receiving antenna group is used for receiving downlink signals transmitted by a base station;
and the downlink signal transmitting antenna group is used for transmitting the downlink signal enhanced by the downlink signal processing link group to the terminal.
As an optional embodiment, the downlink signal receiving antenna group includes a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the downlink signal transmitting antenna group includes a first downlink signal transmitting antenna and a second downlink signal transmitting antenna;
the polarization direction of the first downlink signal receiving antenna is perpendicular to the polarization direction of the second downlink signal receiving antenna, and the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the second downlink signal transmitting antenna.
As an optional embodiment, the downlink signal receiving antenna group includes a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the downlink signal transmitting antenna group includes a first downlink signal transmitting antenna, a second downlink signal transmitting antenna, a third downlink signal transmitting antenna, a fourth downlink signal transmitting antenna, a fifth downlink signal transmitting antenna, and a sixth downlink signal transmitting antenna;
the polarization direction of the first downlink signal receiving antenna is vertical to the polarization direction of the second downlink signal receiving antenna;
the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the fourth downlink signal transmitting antenna, the polarization direction of the second downlink signal transmitting antenna is perpendicular to the polarization direction of the fifth downlink signal transmitting antenna, and the polarization direction of the third downlink signal transmitting antenna is perpendicular to the polarization direction of the sixth downlink signal transmitting antenna.
As an optional embodiment, the number of antennas included in the uplink signal receiving antenna group and the uplink signal transmitting antenna group is multiple;
the uplink signal receiving antenna group is used for receiving an uplink signal transmitted by a terminal;
and the uplink signal transmitting antenna group is used for transmitting the uplink signal enhanced by the uplink signal processing link group to the base station.
As an optional embodiment, the uplink signal receiving antenna group includes a first uplink signal receiving antenna and a second uplink signal receiving antenna, and the uplink signal transmitting antenna group includes a first uplink signal transmitting antenna and a second uplink signal transmitting antenna;
the polarization direction of the first uplink signal receiving antenna is perpendicular to the polarization direction of the second uplink signal receiving antenna, and the polarization direction of the first uplink signal transmitting antenna is perpendicular to the polarization direction of the second uplink signal transmitting antenna.
As an optional embodiment, the uplink signal transmitting antenna group includes a first uplink signal transmitting antenna and a second uplink signal transmitting antenna, and the uplink signal receiving antenna group includes a first uplink signal receiving antenna, a second uplink signal receiving antenna, a third uplink signal receiving antenna, a fourth uplink signal receiving antenna, a fifth uplink signal receiving antenna, and a sixth uplink signal receiving antenna;
the polarization direction of the first uplink signal transmitting antenna is vertical to the polarization direction of the second uplink signal transmitting antenna;
the polarization direction of the first uplink signal receiving antenna is perpendicular to the polarization direction of the fourth uplink signal receiving antenna, the polarization direction of the second uplink signal receiving antenna is perpendicular to the polarization direction of the fifth uplink signal receiving antenna, and the polarization direction of the third uplink signal receiving antenna is perpendicular to the polarization direction of the sixth uplink signal receiving antenna.
As an optional embodiment, the downlink signal processing link includes a first amplifier, a filter, a second amplifier, an attenuator, and a power amplifier, and the downlink signal is processed by the first amplifier, the filter, the second amplifier, the attenuator, and the power amplifier in sequence; the first amplifier is a low noise amplifier and the second amplifier is an enhancement amplifier.
As an optional embodiment, the uplink signal processing link includes a third amplifier, a filter, a fourth amplifier, an attenuator, and a power amplifier, and the uplink signal is processed by the third amplifier, the filter, the fourth amplifier, the attenuator, and the power amplifier in sequence; the third amplifier is a low noise amplifier and the fourth amplifier is an enhancement amplifier.
The inventor also provides a duplex communication implementation method of a signal enhancement system, wherein the signal enhancement system is the signal enhancement system as described in the foregoing;
the method comprises the following steps:
a downlink signal receiving antenna group receives a downlink signal transmitted by a base station;
the downlink signal transmitting antenna group transmits the downlink signal enhanced by the downlink signal processing link group to the terminal;
alternatively, the method comprises the steps of:
an uplink signal receiving antenna group receives an uplink signal transmitted by a terminal;
and the uplink signal transmitting antenna group transmits the uplink signal enhanced by the uplink signal processing link group to the base station.
The invention is different from the prior art, provides a signal enhancement system and a method for realizing duplex communication of the signal enhancement system and provides a signal receiving processing transmitting link group to realize enhancement of multi-channel signal streams, wherein the signal enhancement system comprises a downlink signal receiving processing transmitting link group and an uplink signal receiving processing transmitting link group, and the downlink signal receiving processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group and a downlink signal transmitting antenna group; the downlink signal receiving antenna group comprises at least one downlink signal receiving antenna, and the downlink signal transmitting antenna group comprises at least one downlink signal transmitting antenna; the downlink signal processing link group at least comprises a downlink signal processing link; the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group and an uplink signal transmitting antenna group; the uplink signal receiving antenna group comprises at least one uplink signal receiving antenna, and the uplink signal transmitting antenna group comprises at least one downlink signal transmitting antenna; the uplink signal processing link group at least comprises an uplink signal processing link; the downlink signal receiving and processing transmitting link group and the uplink signal receiving and processing transmitting link group are independent to the signal receiving, enhancing and transmitting.
Because the receiving and transmitting of the uplink signal and the downlink signal do not share the same antenna, the duplex communication is realized. The multiple independent signal processing links realize the enhancement of the multi-path signal flow, thereby achieving the purpose of improving the transmission rate.
Drawings
FIG. 1 is a schematic diagram of a conventional signal amplifier;
fig. 2 is a circuit block diagram of a signal amplifier in a conventional FDD duplex mode system;
fig. 3 is a circuit block diagram of a signal amplifier in a conventional TDD duplex mode system;
fig. 4 is a schematic diagram of an application of a signal enhancement system according to an embodiment of the present invention;
FIG. 5 is a block circuit diagram of a signal enhancement system according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an application of a signal enhancement system according to another embodiment of the present invention;
FIG. 7 is a block circuit diagram of a signal enhancement system according to another embodiment of the present invention;
fig. 8 is a schematic diagram of an application of a signal enhancement system according to another embodiment of the present invention;
FIG. 9 is a block circuit diagram of a signal enhancement system according to another embodiment of the present invention;
fig. 10 is a flowchart of a duplex communication method based on a signal enhancement system according to an embodiment of the present invention;
fig. 11 is a flowchart of a duplex communication method based on a signal enhancement system according to another embodiment of the present invention;
fig. 12 is a schematic structural diagram of a signal enhancement system according to an embodiment of the present invention;
fig. 13 is a schematic diagram illustrating a configuration of a signal receiving and processing transmission link set according to an embodiment of the present invention;
fig. 14 is a schematic diagram of a signal processing link set according to an embodiment of the present invention;
fig. 15 is a schematic diagram of a signal processing chain according to an embodiment of the present invention;
fig. 16 is a schematic diagram of another signal processing chain according to an embodiment of the present invention;
fig. 17 is a schematic diagram of another signal processing chain according to an embodiment of the present invention;
fig. 18 is a schematic diagram of another signal processing chain according to an embodiment of the present invention;
description of reference numerals:
1. a base station;
11. a downlink signal receiving antenna group;
12. an uplink signal receiving antenna group;
31. a downlink signal transmitting antenna group;
32. an uplink signal transmitting antenna group;
21. a downlink signal processing link group;
22. an uplink signal processing link group;
3. and (4) a terminal.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Fig. 1 is a schematic diagram of a conventional signal amplifier.
The signal enhancement system is a set of devices for receiving, enhancing or transmitting signals transmitted by a base station or a terminal, and may specifically include a signal amplifier. Taking a signal amplifier as an example, the signal amplifier may be used to improve the quality of wireless communication between a wireless device and a wireless communication access point (e.g., a base station). The signal amplifier may improve the quality of wireless communications by amplifying, filtering, and/or applying other processing techniques to the uplink and downlink signals communicated between the wireless device and the wireless communication access point.
The signal amplifier may receive a downlink signal from a wireless communication access point (base station) via an antenna. The signal amplifier may also amplify the downstream signal and then provide the amplified downstream signal to the wireless device. In other words, the signal amplifier may act as a relay between the wireless device and the wireless communication access point. The effect is that the wireless device can receive a stronger signal from the wireless communication access point. Similarly, upstream signals from wireless devices (e.g., mobile phones and other digital devices) may be sent to signal amplifiers. The signal amplifier may also transmit the amplified uplink signal to the wireless communication access point via the antenna.
As shown in fig. 1, it is easy to see that the transmission of both uplink and downlink signals in the conventional signal amplifier is accomplished by multiplexing the same set of antennas. In the emerging 5G communication era, most of the technologies supporting the multiplexing antenna are immature and expensive, so that they cannot be applied to 5G signal amplifiers. In addition, the conventional signal amplifier of a group of multiplexing antennas cannot process multi-stream signals, so that forwarding of high-speed multi-stream signals cannot be realized.
As shown in fig. 2 and 3, there is a block circuit diagram of a signal amplifier in a conventional FDD or TDD duplex mode system.
FDD, frequency division duplex, refers to operation of the uplink (mobile to base station) and downlink (base to mobile) using two separate frequencies (with a certain frequency separation requirement), which operate in a symmetric frequency band. FDD is suitable for wireless communication systems that provide a single radio frequency channel for each user. TDD is a duplex scheme of a communication system for separating a reception channel and a transmission channel (or uplink and downlink) in a mobile communication system. In a mobile communication system in a TDD mode, reception and transmission are performed in different time slots of the same frequency channel, i.e., carrier, and reception and transmission channels are separated by different time periods; in the FDD mode, the receiving and transmitting channels are separated by different frequency bands on two symmetrical frequency channels. Since the conventional FDD or TDD is that the antenna is multiplexed when transmitting uplink and downlink signals, most of the technologies for supporting the multiplexed antenna are immature and expensive in the emerging 5G communication era, and thus, the technology cannot be well applied to a 5G signal amplifier. In addition, the conventional signal amplifier of a group of multiplexing antennas cannot process multi-stream signals, so that forwarding of high-speed multi-stream signals cannot be realized.
Fig. 12 is a schematic structural diagram of a signal enhancement system according to an embodiment of the present invention.
The signal enhancement system comprises: a downlink signal receiving processing transmitting link group and an uplink signal receiving processing transmitting link group, wherein the downlink signal receiving processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group 11 at least comprising one downlink signal receiving antenna and a downlink signal transmitting antenna group 31 at least comprising one downlink signal transmitting antenna; the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group 12 at least comprising one uplink signal receiving antenna, and an uplink signal transmitting antenna group 32 at least comprising one uplink signal transmitting antenna;
the downlink signal receiving antenna group 11 is configured to receive a downlink signal transmitted by the base station 1; the downlink signal transmitting antenna group 31 is configured to transmit the downlink signal enhanced by the downlink signal processing link group to the terminal 3; the uplink signal receiving antenna group 12 is configured to receive an uplink signal transmitted by the terminal 3; the uplink signal transmitting antenna group 32 is configured to transmit the uplink signal enhanced by the uplink signal processing link group to the base station; the downlink signal receiving and transmitting link group and the uplink signal receiving and transmitting link group are independent to receive, enhance and transmit signals. Because the receiving and transmitting of the uplink signal and the downlink signal do not share the same antenna, the duplex communication is realized. The multiple independent signal processing links in the signal receiving and transmitting link group realize the enhancement of the multi-path signal flow, thereby achieving the purpose of improving the transmission rate.
The terminal is an electronic device with a mobile communication function, such as a mobile phone, a personal computer, a tablet and the like. A base station, i.e. a public mobile communication base station, is an interface device for a mobile device to access the internet, and is a form of a radio station, which is a radio transceiver station for information transmission with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area.
Fig. 4 is a schematic diagram illustrating an application of a signal enhancement system according to an embodiment of the present invention. The Booster (100) represents a signal amplifier, that is, a synthesis circuit of the downlink signal receiving and processing transmission link group and the uplink signal receiving and processing transmission link group described above, and a specific circuit structure thereof is shown in fig. 5. The signal amplifier, Booster and the like are specific applications of the signal enhancement system.
DonorAntenna1 is a downlink signal receiving antenna, DonorAntenna2 is an uplink signal transmitting antenna, serverAntenna1 is a downlink signal transmitting antenna, and serverAntenna2 is an uplink signal receiving antenna. Because the receiving enhancement and the emission of the uplink signal and the downlink signal are not shared, the duplex communication is realized.
As shown in fig. 5, the downlink signal processing link includes a first amplifier, a filter, a second amplifier, an attenuator, and a power amplifier, and the downlink signal is sequentially enhanced by the first amplifier, the filter, the second amplifier, the attenuator, and the power amplifier; the first amplifier is a low noise amplifier and the second amplifier is an enhancement amplifier. The uplink signal processing link comprises a third amplifier, a filter, a fourth amplifier, an attenuator and a power amplifier, and the uplink signal is subjected to enhancement processing by the third amplifier, the filter, the fourth amplifier, the attenuator and the power amplifier in sequence; the third amplifier is a low noise amplifier and the fourth amplifier is an enhancement amplifier.
Fig. 5 shows an enhancement process of a downlink signal from DonorAntenna1(101) to serverAntenna1(107), and specifically, the downlink signal is sequentially processed through L NA (102, low noise amplifier), Filter (103, Filter), GB L OCK (104, amplifier), controllablearattentuator (105, attenuator), and PA (106, power amplifier).
The downlink signal processing link input terminal Antenna Donorantenna1(101) and the uplink signal processing link output terminal Antenna Donorantenna2(114) are not shared independently of each other the isolation of the uplink signal processing link from the downlink signal processing link at the Donor terminal is provided primarily by the spatial isolation and polarization isolation characteristics of Donorantenna1(101) and Donor Antenna2 (114). adjustment matching of the beam width between Donorantenna1(101) and Donorantenna2(114) can also help to improve the isolation between these two antennas.
The method comprises the steps that a downlink signal receiving processing transmitting link group of only a single downlink signal processing link firstly receives a downlink signal transmitted by a base station through Donorantenna1(101), then the signal enters L NA (102) to be amplified, L NA is a low noise amplifier, and the low noise amplifier is generally placed at the first stage, so that the noise coefficient of the signal processing link can be reduced.
The signals processed by L NA enter a Filter (103) to be filtered to remove extra signals out of band, frequency spectrum is a very precious resource, so that adjacent frequency bands generally have different operation licenses, the introduction of the signals out of band is interference on own signals, and the output of extra nonlinear out-of-band is interference on other networks, so that the processing of the filtering out of band is very critical.
The filtered signal then enters a GainBlock (104) to be amplified. So that the signal can drive the PA of the later stage to reach the required output power.
The signal enhanced by the enhancing amplifier enters a Controllable attenuator (105) and is adjusted in size. The controllable attenuator can be controlled by the MCU to adjust the amount of attenuation (the signal detector is not shown in the embodiment of the figure) based on the signal level detected by the boost, thereby adjusting the signal level that is ultimately emitted. The closed-loop and open-loop control can specifically realize the limitation of output power, the limitation and the presetting of gain size, and can be used for judging whether a system has weak self-excitation caused by insufficient isolation. The existence of weak self-excitation is fatal to a communication system, the attenuation of a signal processing link can be reduced (namely the gain of the signal processing link is increased) within a short time to judge whether strong self-excitation exists or not (generally called self-excitation), if not, the signal processing link backs off a certain gain to enable the signal processing link to normally operate, if so, the gain of the signal processing link is adjusted until the strong self-excitation is eliminated, and then the signal processing link backs off a certain gain to enable the signal processing link to normally operate. The implementation of these algorithms requires the control of the controllable attenuator by operation.
The signal adjusted by the controllable attenuator 105 reenters the PA (106) to be amplified to a desired output power level. PA (power amplifier) is a key component of signal amplifier, and one of the main functions of signal amplifier is signal amplification to compensate for space and obstacle loss, so that signal coverage is extended and signal size is enhanced. The output power of a PA is a very critical technology, without infinite output power, which is limited by materials and processes. The maximum power that a PA can output is non-linear and produces many non-linear products that can affect the performance of the communication system. The output power of the PA cannot be output without an upper limit on the power level that can be achieved in the prior art, and also meets the requirements of health and environmental protection. The PA has some built-in functions or features that can be used for some algorithmic control, such as turning off the signal amplifier, strong self-excited decision. When the function defect which is not adjustable emergently occurs, the algorithm control of the MCU can select to close the PA so as to realize the effect of closing the whole signal processing link. Due to the characteristic of strong self-excitation, the strong self-excitation disappears when the signal feedback link is blocked, the function of blocking the signal feedback link can be realized by closing the PA or reducing the gain of the PA, and the MCU control algorithm judges whether the strong self-excitation exists or not by comparing the change of the signal intensity detected by the signal detector before and after the PA is switched off or the gain is reduced.
The enhanced downlink signal is transmitted by ServerAntenna1(107) and then transmitted to the mobile terminal through the space. The antenna in the present invention may have a filtering function. The antenna ServerAntenna1(107) at the output end of the downlink signal processing chain and the antenna ServerAntenna2(108) at the input end of the uplink signal processing chain are independent of each other and are not shared. The isolation of the upstream signal processing link from the downstream signal processing link at the Server side is mainly provided by the spatial isolation and polarization isolation characteristics of the Server antenna1(107) and the Server antenna2 (108). The adjusted matching of the beam width between ServerAntenna1(107) and ServerAntenna2(108) can also help to improve the isolation between these two antennas. ServerAntenna1(107) with filtering characteristics enables the downstream signal processing link output to have the function of filtering out-of-band non-linear products.
The uplink signal receive process transmit chain set is different from the downlink signal receive process transmit chain set only in the order and number of times the link functions are processed, the uplink signal receive process transmit chain set for only a single uplink signal process link is used by ServerAntenna2(108) to receive the uplink signal from the mobile terminal the ServerAntenna2(108) with filtering characteristics allows the uplink signal process link to have the function of preventing L NA out-of-band blocking, the enhanced uplink signal is transmitted by donoantenna 2(114) and transmitted spatially to the base station, the donoantenna 2(114) with filtering characteristics allows the uplink signal process link output to have the function of filtering out-of-band non-linear products.
Fig. 6 is a schematic diagram illustrating an application of a signal enhancement system according to an embodiment of the present invention. The difference between this embodiment and the embodiment shown in fig. 4 is that there are multiple signal processing links in the downlink signal receiving and processing transmit link group and the uplink signal receiving and processing transmit link group, so that multi-stream signal transmission processing can be implemented, and the purpose of increasing the transmission rate is achieved.
Fig. 7 is a circuit block diagram of a signal enhancement system according to another embodiment of the present invention. While the embodiment of fig. 7 is described in turn according to signal paths, those skilled in the art should understand that the paths through which the signal processing in fig. 7 passes are not fixed, that is, the number of times of processing is variable, and the sequence of processing may also vary according to actual needs, and is not necessarily strictly described according to this embodiment.
The embodiment of fig. 7 extends to the embodiment of fig. 5, and the processing of both the uplink and downlink signals includes a plurality of signal processing chains, each similar to that of fig. 5. That is, the processing procedures 201 to 207 and 208 to 214 in fig. 7 are similar to the processing procedures 101 to 107 in fig. 5, and the processing procedures 215 to 221 and 222 to 228 in fig. 7 are similar to the processing procedures 108 to 114 in fig. 5, and are not repeated here.
In this embodiment, the uplink signal receiving and processing transmitting link group performs uplink signal processing by the N signal processing links, the downlink signal receiving and processing transmitting link group performs downlink signal processing by the N signal processing links, and the number N of signal processing links in the uplink signal receiving and processing transmitting link group may not be equal to the number N of signal processing links in the downlink signal receiving and processing transmitting link group. In general, the number N of signal processing chains in the uplink signal receiving and processing transmission chain group is equal to the number N of signal processing chains in the downlink signal receiving and processing transmission chain group, and N is equal to 2. The polarization direction of the Donor Antenna1-1 is perpendicular to the polarization direction of the Donor Antenna1-2, the polarization direction of the Server Antenna1-1 is perpendicular to the polarization direction of the Server Antenna1-2, the polarization direction of the Donor Antenna2-1 is perpendicular to the polarization direction of the Donor Antenna2-2, and the polarization direction of the Server Antenna2-1 is perpendicular to the polarization direction of the Server Antenna2-2, because the polarization isolation effect is the best when the polarization directions between the two antennas are 90 degrees to each other, but cross polarization with multiple angles is not excluded.
Fig. 8 is a schematic diagram illustrating an application of a signal enhancement system according to an embodiment of the present invention. This embodiment differs from the embodiment shown in fig. 6 in that the number of antennas used for relaying base station signals and the number of antennas used for relaying terminal signals in the signal enhancement system are different, preferably, the number of antennas used for relaying terminal signals is larger than the number of antennas used for relaying base station signals.
Fig. 9 is a block circuit diagram of the signal enhancement system shown in fig. 8. The embodiment of fig. 9 is an application where the embodiment of fig. 7 is extended to multiple covering sectors. As can be seen from the application diagram in fig. 8, the Server side has multiple antenna groups, different Server-side antenna groups cover different areas, and in practical application, n is 1, 2, and 3 are common, where n is 1 represents that the Server side of the signal amplifier has 1 sector, n is 2 represents that the Server side of the signal amplifier has 2 sectors, and n is 3 represents that the Server side of the signal amplifier has 3 sectors. The embodiment of fig. 9 only shows the case of vertical cross polarization between signal receiving antennas and vertical cross polarization between transmitting antennas.
According to different requirements, the signal processing links of the downlink signal processing link group may be split at different positions, and the first signal processing link of the downlink signal processing link group shown in fig. 9 is split at a 302-n position. We can also choose to split at 303-n, 304-n, 305-n, 306-n or directly after 306. The second signal processing link of the downlink signal processing link group shown in fig. 9 is split at 309-n, and we can also choose to split at 310-n, 311-n, 312-n, 313-n or directly after 313.
According to different requirements, the signal processing links of the uplink signal processing link group may be combined at different positions, the first signal processing link of the uplink signal processing link group shown in fig. 9 is combined at 316-n, and we may also select to combine at 317-n, 318-n, 319-n, 320-n or directly combine at 320. The second signal processing chain of the set of uplink signal processing chains shown in fig. 9 is combined at 323-n, and we can also choose to combine at 324-n, 325-n, 326-n, 327-n, or combine immediately before 327.
In fig. 9, the processing of signals 301 to 306, 302-n to 306-n, 308 to 313, 309-n to 313-n is similar to the processing of signals 101 to 107 in fig. 5, and thus the description is omitted here. The processing of signals 315 to 320, 316-n to 320-n, 322 to 327, 323-n to 327-n is similar to the processing of signals 108 to 114 in fig. 5, and is not repeated here.
In short, the number of antennas for receiving downlink signals transmitted by the base station or transmitting signals to the base station is less than the number of antennas for receiving uplink signals transmitted by the terminal or transmitting signals to the terminal, so that the downlink signals transmitted by the base station can be branched and then transmitted to the corresponding antennas after being received, and then transmitted to the terminal; on the contrary, for signals transmitted by a plurality of terminals, the signals are combined and then transferred to the base station through corresponding antennas. Therefore, signal receiving and sending processing of the terminals in a plurality of sectors can be realized only by arranging a small number of antennas butted with the base station, and equipment cost of the system is effectively reduced.
In some embodiments, the number of the downlink signal receiving antennas and the number of the downlink signal transmitting antennas are multiple. The downlink signal receiving antenna group comprises a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the downlink signal transmitting antenna group comprises a first downlink signal transmitting antenna and a second downlink signal transmitting antenna; the polarization direction of the first downlink signal receiving antenna is perpendicular to the polarization direction of the second downlink signal receiving antenna, and the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the second downlink signal transmitting antenna.
The downlink signal receiving antenna group comprises a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the downlink signal transmitting antenna group comprises a first downlink signal transmitting antenna, a second downlink signal transmitting antenna, a third downlink signal transmitting antenna, a fourth downlink signal transmitting antenna, a fifth downlink signal transmitting antenna and a sixth downlink signal transmitting antenna; the polarization direction of the first downlink signal receiving antenna is vertical to the polarization direction of the second downlink signal receiving antenna; the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the fourth downlink signal transmitting antenna, the polarization direction of the second downlink signal transmitting antenna is perpendicular to the polarization direction of the fifth downlink signal transmitting antenna, and the polarization direction of the third downlink signal transmitting antenna is perpendicular to the polarization direction of the sixth downlink signal transmitting antenna.
In some embodiments, the number of the uplink signal receiving antennas and the number of the uplink signal transmitting antennas are multiple. The uplink signal receiving antenna group comprises a first uplink signal receiving antenna and a second uplink signal receiving antenna, and the uplink signal transmitting antenna group comprises a first uplink signal transmitting antenna and a second uplink signal transmitting antenna; the polarization direction of the uplink signal receiving antenna is perpendicular to the polarization direction of the second uplink signal receiving antenna, and the polarization direction of the first uplink signal transmitting antenna is perpendicular to the polarization direction of the second uplink signal transmitting antenna.
The uplink signal transmitting antenna group comprises a first uplink signal transmitting antenna and a second uplink signal transmitting antenna, and the uplink signal receiving antenna group comprises a first uplink signal receiving antenna, a second uplink signal receiving antenna, a third uplink signal receiving antenna, a fourth uplink signal receiving antenna, a fifth uplink signal receiving antenna and a sixth uplink signal receiving antenna; the polarization direction of the first uplink signal transmitting antenna is vertical to the polarization direction of the second uplink signal transmitting antenna; the polarization direction of the first uplink signal receiving antenna is perpendicular to the polarization direction of the fourth uplink signal receiving antenna, the polarization direction of the second uplink signal receiving antenna is perpendicular to the polarization direction of the fifth uplink signal receiving antenna, and the polarization direction of the third uplink signal receiving antenna is perpendicular to the polarization direction of the sixth uplink signal receiving antenna.
As shown in fig. 10 and fig. 11, the present invention further provides a duplex communication implementation method of a signal enhancement system, wherein the signal enhancement system is the signal enhancement system as described above;
the method comprises the following steps:
firstly, entering step S1011 downlink signal receiving antenna group to receive downlink signals transmitted by the base station;
then step S1012 is entered to transmit the downlink signal enhanced by the downlink signal processing link set to the terminal by the downlink signal transmitting antenna set;
alternatively, the method comprises the steps of:
firstly, entering step S1111 uplink signal receiving antenna group to receive uplink signals transmitted by the terminal;
then, step S1112 is entered to transmit the uplink signal enhanced by the uplink signal processing link set to the base station by the uplink signal transmitting antenna set.
In the method, because the receiving and the transmitting of the uplink signal and the downlink signal do not share the same antenna, the duplex communication is realized.
As shown in fig. 13, a schematic structural diagram of a signal receiving processing transmitting link according to an embodiment of the present invention is shown, and it is easily seen that the signal receiving processing transmitting link generally consists of three parts, which are a signal receiving antenna group, a signal processing link group and a signal transmitting antenna group, respectively, where the signal processing link group is disposed between the signal receiving antenna group and the signal transmitting antenna group, and is called a downlink signal receiving processing transmitting link group (i.e. the aforementioned "downlink signal receiving processing transmitting link group") when the signal receiving processing transmitting link group is used for processing a downlink signal; when the receiving processing transmitting link set is used for processing uplink signals, the receiving processing transmitting link set is called an uplink signal receiving processing transmitting link set (i.e. the aforementioned "uplink signal receiving processing transmitting link set").
Fig. 14 is a schematic structural diagram of a signal processing link group according to another embodiment of the present invention, where the signal processing link group is further composed of one or more signal processing links, and when the signal processing link group is used for processing a downlink signal, the signal processing link group is called a downlink signal processing link group; a signal processing link set is referred to as an upstream signal processing link set when it is used to process upstream signals.
Fig. 15 is a schematic structural diagram of a signal processing chain according to another embodiment of the present invention, where the signal processing chain is characterized in that: after receiving the uplink signal or the downlink signal from the signal receiving antenna group, the uplink signal or the downlink signal is sent to the transmitting antenna through the signal processing link group, and the intermediate signal is not combined or branched. 202 to 207, 209 to 213, 220 to 216, 227 to 223 in fig. 7 are all single signal processing chains in the present embodiment
Fig. 16 is a schematic structural diagram of a signal processing chain according to another embodiment of the present invention, where the signal processing chain is characterized in that: after a single signal receiving antenna receives a single signal, the single signal enters a signal processing link, then the single signal is split and processed into a plurality of signals before exiting the signal processing link, and then the plurality of signals are respectively sent to a plurality of signal transmitting antennas and then transmitted to a terminal or a base station. The nodes preceding 302 to 306, 306-N, 309 in FIG. 9 to 313, 313-N are all such split signal processing links
Fig. 17 is a schematic structural diagram of a signal processing chain according to another embodiment of the present invention, where the signal processing chain is characterized in that: after receiving a plurality of signals (also referred to as a plurality of signal streams), the plurality of signal receiving antennas respectively enter the signal processing link, the plurality of signals are combined into one signal before exiting the signal processing link, and then the one signal is sent to one signal transmitting antenna and then transmitted to the terminal or the base station. Nodes preceding 320, 320-N through 315, 327-N through 322 in fig. 9 are such combined signal processing links.
Fig. 18 is a schematic structural diagram of a signal processing chain according to another embodiment of the present invention, where the signal processing chain is characterized in that: after receiving a plurality of signals, a plurality of signal receiving antennas respectively enter a signal processing link, the plurality of signals are combined in the signal processing link to be processed into one signal, then the one signal is divided in the signal processing link to be processed into a plurality of signals, and then the plurality of signals are respectively sent to a plurality of signal transmitting antennas and then transmitted to a terminal or a base station.
The invention provides a signal enhancement system and a method for realizing duplex communication of the signal enhancement system, wherein the signal enhancement system comprises a downlink signal receiving processing transmitting link group and an uplink signal receiving processing transmitting link group, and the downlink signal receiving processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group and a downlink signal transmitting antenna group; the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group and an uplink signal transmitting antenna group; the downlink signal processing link group at least comprises a signal processing link; the uplink signal processing link group at least comprises one signal processing link; the downlink signal receiving and processing transmitting link group and the uplink signal receiving and processing transmitting link group are independent to the transmission or the reception of signals. Because the receiving and transmitting of the uplink signal and the downlink signal do not share the same antenna, the duplex communication is realized. The signal receiving processing transmitting link group is provided with a plurality of independent signal processing links to enhance a plurality of signal streams, thereby achieving the purpose of improving the transmission rate.
It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (10)
1. A signal enhancement system, comprising: a downlink signal receiving and transmitting link group and an uplink signal receiving and transmitting link group;
the downlink signal receiving and processing transmitting link group comprises a downlink signal processing link group, a downlink signal receiving antenna group and a downlink signal transmitting antenna group; the downlink signal receiving antenna group comprises at least one downlink signal receiving antenna, and the downlink signal transmitting antenna group comprises at least one downlink signal transmitting antenna; the downlink signal processing link group at least comprises a downlink signal processing link;
the uplink signal receiving and transmitting link group comprises an uplink signal processing link group, an uplink signal receiving antenna group and an uplink signal transmitting antenna group; the uplink signal receiving antenna group comprises at least one uplink signal receiving antenna, and the uplink signal transmitting antenna group comprises at least one uplink signal transmitting antenna; the uplink signal processing link group at least comprises an uplink signal processing link;
the downlink signal receiving and processing transmitting link group and the uplink signal receiving and processing transmitting link group are independent to the signal receiving, enhancing and transmitting.
2. The signal enhancement system of claim 1, wherein the downlink signal receiving antenna group and the downlink signal transmitting antenna group each include a plurality of antennas;
the downlink signal receiving antenna group is used for receiving downlink signals transmitted by a base station;
and the downlink signal transmitting antenna group is used for transmitting the downlink signal enhanced by the downlink signal processing link group to the terminal.
3. The signal enhancement system of claim 2, wherein the set of downlink signal receiving antennas comprises a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the set of downlink signal transmitting antennas comprises a first downlink signal transmitting antenna and a second downlink signal transmitting antenna;
the polarization direction of the first downlink signal receiving antenna is perpendicular to the polarization direction of the second downlink signal receiving antenna, and the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the second downlink signal transmitting antenna.
4. The signal enhancement system of claim 2, wherein the set of downlink signal receiving antennas comprises a first downlink signal receiving antenna and a second downlink signal receiving antenna, and the set of downlink signal transmitting antennas comprises a first downlink signal transmitting antenna, a second downlink signal transmitting antenna, a third downlink signal transmitting antenna, a fourth downlink signal transmitting antenna, a fifth downlink signal transmitting antenna, and a sixth downlink signal transmitting antenna;
the polarization direction of the first downlink signal receiving antenna is vertical to the polarization direction of the second downlink signal receiving antenna;
the polarization direction of the first downlink signal transmitting antenna is perpendicular to the polarization direction of the fourth downlink signal transmitting antenna, the polarization direction of the second downlink signal transmitting antenna is perpendicular to the polarization direction of the fifth downlink signal transmitting antenna, and the polarization direction of the third downlink signal transmitting antenna is perpendicular to the polarization direction of the sixth downlink signal transmitting antenna.
5. The signal enhancement system of claim 1, wherein the number of antennas comprised by the set of uplink signal receiving antennas and the set of uplink signal transmitting antennas is plural;
the uplink signal receiving antenna group is used for receiving an uplink signal transmitted by a terminal;
and the uplink signal transmitting antenna group is used for transmitting the uplink signal enhanced by the uplink signal processing link group to the base station.
6. The signal enhancement system of claim 5 wherein said set of uplink signal receiving antennas comprises a first uplink signal receiving antenna and a second uplink signal receiving antenna, and wherein said set of uplink signal transmitting antennas comprises a first uplink signal transmitting antenna and a second uplink signal transmitting antenna;
the polarization direction of the first uplink signal receiving antenna is perpendicular to the polarization direction of the second uplink signal receiving antenna, and the polarization direction of the first uplink signal transmitting antenna is perpendicular to the polarization direction of the second uplink signal transmitting antenna.
7. The signal enhancement system of claim 5, wherein the set of uplink signal transmitting antennas comprises a first uplink signal transmitting antenna and a second uplink signal transmitting antenna, and the set of uplink signal receiving antennas comprises a first uplink signal receiving antenna, a second uplink signal receiving antenna, a third uplink signal receiving antenna, a fourth uplink signal receiving antenna, a fifth uplink signal receiving antenna, a sixth uplink signal receiving antenna;
the polarization direction of the first uplink signal transmitting antenna is vertical to the polarization direction of the second uplink signal transmitting antenna;
the polarization direction of the first uplink signal receiving antenna is perpendicular to the polarization direction of the fourth uplink signal receiving antenna, the polarization direction of the second uplink signal receiving antenna is perpendicular to the polarization direction of the fifth uplink signal receiving antenna, and the polarization direction of the third uplink signal receiving antenna is perpendicular to the polarization direction of the sixth uplink signal receiving antenna.
8. The signal enhancement system of claim 1, wherein the downstream signal processing chain comprises a first amplifier, a filter, a second amplifier, an attenuator, and a power amplifier, the downstream signal being processed sequentially through the first amplifier, the filter, the second amplifier, the attenuator, and the power amplifier; the first amplifier is a low noise amplifier and the second amplifier is an enhancement amplifier.
9. The signal enhancement system of claim 1, wherein the uplink signal processing chain comprises a third amplifier, a filter, a fourth amplifier, an attenuator, and a power amplifier, the uplink signal being processed sequentially through the third amplifier, the filter, the fourth amplifier, the attenuator, and the power amplifier; the third amplifier is a low noise amplifier and the fourth amplifier is an enhancement amplifier.
10. A method for implementing duplex communication of a signal enhancement system, wherein the signal enhancement system is the signal enhancement system according to any one of claims 1 to 9;
the method comprises the following steps:
a downlink signal receiving antenna group receives a downlink signal transmitted by a base station;
the downlink signal transmitting antenna group transmits the downlink signal enhanced by the downlink signal processing link group to the terminal;
alternatively, the method comprises the steps of:
an uplink signal receiving antenna group receives an uplink signal transmitted by a terminal;
and the uplink signal transmitting antenna group transmits the uplink signal enhanced by the uplink signal processing link group to the base station.
Priority Applications (2)
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| CN202010252964.0A CN111447050A (en) | 2020-04-02 | 2020-04-02 | Signal enhancement system and duplex communication implementation method of signal enhancement system |
| PCT/CN2021/084827 WO2021197402A1 (en) | 2020-04-02 | 2021-04-01 | Signal enhancement system and signal enhancement system-based duplex communication implementing method |
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| CN202010252964.0A CN111447050A (en) | 2020-04-02 | 2020-04-02 | Signal enhancement system and duplex communication implementation method of signal enhancement system |
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| CN115459792A (en) * | 2022-09-23 | 2022-12-09 | 黄祥辉 | 5G signal receiving equipment and receiving method |
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| WO2021197402A1 (en) | 2021-10-07 |
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