A small base station and repeater integrated device

Abstract

The application discloses a small base station and repeater integrated equipment, which comprises an equipment main body, a repeater module and a small base station module. The repeater module comprises a transceiving connection unit, a diplexer, a repeater transmitting link and a repeater receiving link. The transceiving connection unit is used for receiving signals transmitted by a donor base station or a near-end machine and transmitting signals of the repeater to the donor base station or the near-end machine. The diplexer is used for realizing isolation and filtering of uplink signals and downlink signals and switching of the uplink signals and the downlink signals. The repeater transmitting link and the repeater receiving link are used for amplifying and transmitting repeater signals. The small base station module comprises a small base station transceiving link, a protocol and OAM processing unit and a backhaul interface and an interference suppression module which is used for suppressing signal interference between the small base station module and the repeater module in the same frequency spectrum. The small base station and the repeater are integrated in the same equipment, so that signal coverage is enhanced, capacity is improved and the problem of co-frequency interference is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wireless communication, in particular to a small base station and repeater integrated device. BACKGROUND

[0002] The coverage range of mobile communication base station generally has macro base station, micro base station, pico base station and femto base station from large to small. For the convenience of description, the micro base station, pico base station and femto base station are collectively referred to as small base station. The small base station has complete base station function, thereby providing capacity and signal coverage for blind spots and hot spots. In addition, in order to solve the signal coverage quality problem of blind spots, repeaters are also used to provide signal coverage enhancement. The repeater amplifies the transmission signal of the base station in the downlink direction and amplifies the transmission signal of the terminal in the uplink direction, thereby enhancing the coverage.

[0003] The repeater can generally realize enhancement of more carriers, modes (such as mobile communication 3G, 4G, 5G, etc.), larger bandwidth signals, but can only realize enhancement of coverage signal energy and cannot provide capacity enhancement in capacity limited scenarios. The small base station has small coverage range, and the types of supported modes, the number of carriers, the bandwidth, etc. are generally weak from the perspective of cost, power consumption, etc. However, the small base station has complete base station function and can provide certain capacity, thereby having certain advantages in capacity limited scenarios.

[0004] For the scenario of small capacity and weak signal coverage, if the macro base station is increased, the cost will be greatly increased, the deployment difficulty is also high, and it is also difficult to meet the network planning requirements. If only the small base station is increased, part of the capacity problem can be solved, but the capacity of the original base station providing coverage in the target area is not fully utilized. For example, as shown in the figure, if the small base station and the repeater are deployed at the same time, the capacity enhancement and the enhancement of larger bandwidth signals can be realized at the same time, but the deployment cost is still high, and the repeater and the small base station are prone to interference. Figure 1 SUMMARY

[0005] Based on the deficiencies of the prior art, the present application provides a small base station and repeater integrated device, which integrates the small base station and the repeater in the same device, thereby enhancing the signal coverage and providing capacity improvement, and effectively avoiding the same frequency interference problem.

[0006] The present application discloses a small base station and repeater integrated device, which comprises:

[0007] The device main body is provided with a repeater module and a small base station module, and an interference suppression module.

[0008] ​The repeater module comprises a transceiving connection unit, a diplexer, a repeater transmitting link and a repeater receiving link. The transceiving connection unit is used for receiving signals transmitted by a donor base station or a near-end machine or transmitting signals of the repeater to the donor base station or the near-end machine. The diplexer is used for realizing isolation and filtering of uplink signals and downlink signals and uplink and downlink switching functions. The repeater transmitting link and the repeater receiving link are used for amplifying and transmitting repeater signals.

[0009] The small base station module comprises a small base station transceiving link, a protocol and OAM processing unit and a backhaul interface. The small base station transceiving link is used for transmitting signals between the small base station and a terminal. The backhaul interface is used for data transmission between the small base station and a core network. The protocol and OAM processing unit is used for processing communication protocols between the small base station and the terminal / core network and operation and maintenance functions of the device.

[0010] The interference suppression module is used for suppressing signal interference between the small base station module and the repeater module in the same frequency spectrum and ensuring stability of signal transmission.

[0011] In some embodiments, a link multiplexing unit is further included. The link multiplexing unit is used for multiplexing the small base station transceiving link and the repeater transceiving link facing the terminal side. The transceiving link of the repeater module is adapted to the input and output signals of the small base station module. The link multiplexing unit comprises a full multiplexing mode and a partial multiplexing mode.

[0012] In some embodiments, the interference suppression module suppresses overlapping signals according to a processing node of a link where the combining unit is located. The overlapping signals are signals of a frequency spectrum coinciding with the small base station module before a transmitting signal of the repeater module facing the terminal side enters the combining unit and before a receiving signal of the repeater module facing the terminal side enters the repeater from the splitting unit.

[0013] In some embodiments, when the processing node of the link where the combining unit is located is a digital frequency domain, the amplitude of the overlapping signal is assigned as zero.

[0014] When the processing node of the link where the combining unit is located is a digital time domain, the overlapping signal is suppressed by a digital filter.

[0015] When the processing node of the link where the combining unit is located is an analog part, the overlapping signal is suppressed by an analog filter.

[0016] In some embodiments, the small base station transceiving link comprises a small base station first receiving link, a small base station second receiving link, a small base station first transmitting link and a small base station second transmitting link.

[0017] The output signal of the repeater station transmitting link is adapted to the first receiving link of the small base station, and the input signal of the repeater station receiving link is adapted to the first transmitting link and the output signal of the second transmitting link of the small base station.

[0018] In some embodiments, when the link multiplexing unit is in full multiplexing mode, the first transmitting link and the second transmitting link of the small base station are multiplexed with the transmitting link of the repeater station facing the terminal side, and the signal combination is completed by the combination unit; or the first receiving link and the second receiving link of the small base station are multiplexed with the receiving link of the repeater station facing the terminal side, and the signal separation is completed by the separation unit; or the transmitting link multiplexing and the receiving link multiplexing exist simultaneously.

[0019] In some embodiments, when the link multiplexing unit is in partial multiplexing mode, the first part of the first transmitting link of the small base station is multiplexed with the transmitting link of the repeater station facing the terminal side, and the second transmitting link of the small base station operates independently; or the first receiving link of the small base station is multiplexed with the receiving link of the repeater station facing the terminal side, and the second receiving link of the small base station operates independently; or the transmitting link multiplexing and the receiving link multiplexing exist simultaneously.

[0020] The application also discloses a small base station and repeater station fusion device, comprising:

[0021] a device main body provided with a repeater station circuit module, a small base station circuit module, a power module, and an operation and maintenance unit;

[0022] The repeater station circuit module completes the signal transmission and reception and amplification of the repeater station facing the donor base station and the signal transmission and reception and amplification of the repeater station facing the terminal; the small base station circuit module realizes the signal transmission and reception between the terminal, the protocol processing, and the data transmission and protocol processing between the core network; the power module is responsible for power supply for the repeater station circuit module, the small base station circuit module, and the operation and maintenance unit; and the operation and maintenance unit is responsible for the operation and maintenance management of the device.

[0023] The device main body comprises a power interface, an operation and maintenance interface, a backhaul interface, a repeater station donor base station signal transmission and reception interface, a repeater station terminal signal transmission and reception interface, and a small base station terminal signal transmission and reception interface; the operation and maintenance interface realizes the operation and maintenance management of the device main body; and the backhaul interface realizes the data transmission between the small base station and the core network.

[0024] The power module is connected to the power interface, the operation and maintenance unit is connected to the operation and maintenance interface, and the small base station circuit module and the repeater station circuit module are connected to the same power module and the same operation and maintenance unit.

[0025] In some embodiments, the power module comprises a power conversion circuit, and the small base station circuit module and the repeater station circuit module are connected to the same or different power conversion circuits.

[0026] In some embodiments, the transceiving connection unit of the repeater module, the repeater circuit module comprises at least one of an antenna, a radio frequency connector, a twisted pair or an optical fiber.

[0027] Compared with the prior art, the present application has the beneficial effects that:

[0028] The present application provides a small base station and repeater integrated device, integrating a small base station and a repeater, which can meet the demand in a capacity-limited and weak signal coverage scenario, while reducing the deployment and maintenance costs and reducing the integration cost. For different deployment environments and signal coverage conditions, flexible deployment options are provided. At the same time, the spectrum overlapping between the repeater module and the small base station module is suppressed, thereby avoiding interference between them. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 A schematic diagram of simultaneously deploying independent small base stations and independent repeaters is provided as background technology;

[0030] Figure 2 A structural schematic diagram of a small base station and repeater integrated device provided by the present application is provided;

[0031] Figure 2.1 A structural schematic diagram of a small base station and repeater integrated device power converter and operation and maintenance unit implementation provided by the present application is shown; Figure 2

[0032] Figure 2.2 Another structural schematic diagram of a small base station and repeater integrated device power converter and operation and maintenance unit implementation provided by the present application is shown; Figure 2

[0033] A structural schematic diagram of a small base station and repeater integrated device link multiplexing provided by the present application is shown; Figure 3

[0034] A structural schematic diagram of a small base station and repeater integrated device embodiment 1 provided by the present application is shown; Figure 4

[0035] A structural schematic diagram of a small base station and repeater integrated device embodiment 1 provided by the present application is shown; Figure 4.1

[0036] An application scenario diagram of a small base station and repeater integrated device embodiment 1 provided by the present application is shown; Figure 4.2

[0037] A structural schematic diagram of a first repeater digital processing unit of a small base station and repeater integrated device embodiment 1 provided by the present application is shown; Figure 4.3 ​A small base station first digital processing unit structure schematic view of a small base station and repeater fusion device embodiment 1 provided by the present application;

[0038] Figure 4.4 Another structure schematic view of a small base station and repeater fusion device embodiment 1 provided by the present application;

[0039] Figure 4.5 Another structure schematic view of a first repeater digital processing unit of a small base station and repeater fusion device embodiment 1 provided by the present application;

[0040] Figure 4.6 Another structure schematic view of a first repeater digital processing unit of a small base station and repeater fusion device embodiment 1 provided by the present application;

[0041] Figure 4.7 Another structure schematic view of a first repeater digital processing unit of a small base station and repeater fusion device embodiment 1 provided by the present application;

[0042] Figure 5 A structure schematic view of a small base station and repeater fusion device embodiment 2 provided by the present application;

[0043] Figure 5.1 An application scenario view of a small base station and repeater fusion device embodiment 2, 3 provided by the present application;

[0044] Figure 6 A structure schematic view of a small base station and repeater fusion device embodiment 3 provided by the present application;

[0045] Figure 6.1 Another structure schematic view of a second repeater digital processing unit of a small base station and repeater fusion device embodiment 3 provided by the present application;

[0046] Figure 6.2 Another structure schematic view of a second repeater digital processing unit of a small base station and repeater fusion device embodiment 3 provided by the present application;

[0047] Figure 6.3 Another structure schematic view of a second repeater digital processing unit of a small base station and repeater fusion device embodiment 3 provided by the present application;

[0048] Figure 7 A structure schematic view of a small base station and repeater fusion device embodiment 4 provided by the present application;

[0049] Figure 7.1A schematic diagram of first transmitting analog signal and second receiving analog signal processing of the small base station and repeater integrated device embodiment 4 provided by the present application is shown in FIG. 4;

[0050] Figure 7.2 Another schematic diagram of first transmitting analog signal and second receiving analog signal processing of the small base station and repeater integrated device embodiment 4 provided by the present application is shown in FIG. 5;

[0051] Figure 7.3 A schematic diagram of second transmitting analog signal processing and first receiving analog signal processing of the small base station and repeater integrated device embodiment 4 provided by the present application is shown in FIG. 6;

[0052] Figure 7.4 Another schematic diagram of second transmitting analog signal processing and first receiving analog signal processing of the small base station and repeater integrated device embodiment 4 provided by the present application is shown in FIG. 7;

[0053] Figure 7.5 A structural schematic diagram of the second digital processing unit of the small base station and repeater integrated device embodiment 4 provided by the present application is shown in FIG. 8. DETAILED DESCRIPTION

[0054] For better understanding and implementation, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0055] The terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover the inclusions not exclusively, for example, the processes, methods, systems, products or devices comprising a series of steps or modules do not have to be limited to the clearly listed steps or modules, but can include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0056] The present application provides a small base station and repeater integrated device, which integrates the small base station and the repeater in the same device, and can enhance signal coverage and provide capacity improvement.

[0057] Specifically, the device includes a device body, which is provided with a repeater circuit module, a small base station module circuit module, a power module, and an operation and maintenance unit; the repeater circuit module completes the signal transmission, reception, and amplification of the repeater to the donor base station and the signal transmission, reception, and amplification to the terminal; the small base station circuit module implements signal transmission and reception and protocol processing between the terminal and the core network, as well as data transmission and protocol processing; the power module is responsible for supplying power to the repeater circuit module, the small base station circuit module, the operation and maintenance unit, etc.; the operation and maintenance unit is responsible for the operation, maintenance, and management of the device;

[0058] The device body also includes a power supply interface, an operation and maintenance interface, a backhaul interface, a repeater donor base station signal transceiver interface, a repeater terminal signal transceiver interface, and a small base station terminal signal transceiver interface. The operation and maintenance interface realizes the operation and maintenance management of the device body, and the backhaul interface realizes data transmission between the small base station and the core network; the power supply module is connected to the power supply interface, the operation and maintenance unit is connected to the operation and maintenance interface, and the small base station circuit module and the repeater circuit module are connected to the same power supply module and the same operation and maintenance unit.

[0059] like Figure 2 As shown, the small base station circuit module and the repeater circuit module are simply integrated into one device, sharing equipment structural parts, power supply and operation and maintenance interfaces. The repeater circuit module is responsible for enhancing signal coverage, and the small base station circuit module provides base station services. The signal links of the two are completely independent, solving the problem of relatively high deployment and maintenance costs when the two are deployed simultaneously in the same area.

[0060] The small base station circuit module and the repeater circuit module are set in one device, and a power supply module is used to power both. The power supply module includes a power conversion circuit, and the small base station circuit module and the repeater circuit module are connected to the same or different power conversion circuits. Figure 2.1 As shown, the power module inside the device can be split into two to supply power to the repeater module and the small base station module respectively, and the power conversion circuits of the two are independent. Figure 2.2 As shown, the repeater module and the small base station module share a power conversion circuit and are powered by the same power module. Similarly, the small base station module and the repeater module can share the same operation and maintenance interface, such as using the same processor to implement operation and maintenance.

[0061] Simply integrating the small base station module and the repeater module into the device reduces equipment costs, as well as deployment and maintenance costs. However, because the repeater module and the small base station module have completely independent transmit and receive links, costs and power consumption are still relatively high, and signal interference issues are prone to occur. Therefore, in another embodiment, the present invention further reduces the cost of the integrated device through link multiplexing, reduces power consumption, and avoids interference issues between the small base station and the repeater.

[0062] Specifically, the device comprises a device main body, which is provided with a repeater module and a small base station module, and an interference suppression module; the repeater module comprises a transceiving connection unit, a diplexer, a repeater transmitting link, a repeater receiving link and a control unit; the transceiving connection unit is used for receiving signals of a donor base station or a near-end machine or transmitting signals of the repeater to the donor base station or the near-end machine; the diplexer is used for realizing isolation (FDD system) and filtering of uplink signals and downlink signals and uplink / downlink switching function (TDD system); the repeater transmitting link and the repeater receiving link are used for amplifying and transmitting repeater signals; the small base station module is used for providing small base station functions, and comprises a small base station transceiving link, a protocol and OAM processing unit and a backhaul interface; the small base station transceiving link is used for realizing signal transceiving between the small base station and a terminal; the backhaul interface is used for data transmission between the small base station and a core network; the protocol and OAM processing unit is used for processing communication protocols between the small base station and the terminal / core network and operation and maintenance functions of the device; the interference suppression module is used for suppressing signal interference between the small base station module and the repeater module in the same frequency spectrum, so as to ensure stability of signal transmission.

[0063] As shown in Figure 3 , the repeater module comprises a transceiving connection unit, a diplexer, a repeater transmitting link, a repeater receiving link and a repeater digital processing and control unit. The transceiving connection unit is used for directly receiving or receiving, through a repeater near-end machine, a transmitting signal of a donor base station and transmitting a signal to the donor base station. In the embodiment, the diplexer is a second diplexer in Figure 3 , and its function depends on TDD or FDD system, and it realizes separation and isolation of signals. In the TDD system, the second diplexer realizes functions of a switch and a filter; for the FDD system, the second diplexer realizes isolation of transceiving frequency bands. The repeater transmitting link is used for amplifying uplink signals of a terminal, and the repeater receiving link is used for receiving and amplifying signals of a donor base station; the repeater transmitting link and the repeater receiving link both need to be adapted to the small base station transceiving link.

[0064] The repeater transmitting link realizes the amplification and transmission of the terminal uplink signal, which can include a digital part and an analog part, or only an analog part, but needs to be adapted to the output signal of the first receiving link of the small base station. If the small base station module is branched after the digital processing part, the repeater signal is output to the repeater transmitting link, such as the output after the FFT, then the repeater transmitting link also needs to include a digital processing part, and needs to process the frequency domain data after the FFT as input to start processing; if the small base station is branched in the analog circuit part, such as after the filter amplification of the received radio frequency signal, and without frequency conversion, the analog signal is sent to the repeater transmitting link through the branching unit, then the repeater transmitting link processes the received analog signal, without digital processing, digital-to-analog conversion and analog up-conversion, only amplification and filtering and other processing.

[0065] The repeater receiving link realizes the reception and amplification of the donor base station signal, which can include a digital part and an analog part, or only an analog part, but needs to be adapted to the signal input to the combining unit of the second transmitting link of the small base station, and the signal types and processing nodes of the output signal of the repeater receiving link and the output signal of the second transmitting link of the small base station before combining also need to be adapted.

[0066] The repeater module also includes a digital processing and control unit, which is used to derive the data required for controlling the repeater from the data collected by the repeater receiving link, such as deriving the TDD frame synchronization signal from the SSB signal transmitted by the 5G donor base station, and deriving the transceiving time slot ratio of the donor base station from the SIB1, so as to realize the control of the TDD switch switching.

[0067] The small base station module includes a small base station transceiving link, a protocol and OAM processing unit and a backhaul interface, the small base station transceiving link is used to realize the signal transceiving between the small base station and the terminal, the backhaul interface is used for data transmission between the small base station and the core network; the protocol and OAM processing unit is used to process the communication protocol between the small base station and the terminal / core network; the small base station transceiving link includes a small base station first receiving link, a small base station second receiving link, a small base station first transmitting link and a small base station second transmitting link.

[0068] The backhaul interface is used for data transmission between the small base station and the core network, and the small base station and the core network can pass through a gateway. The backhaul interface adopts different interface forms, such as optical interface, RJ-45, etc. The protocol and OAM processing unit is used to process the physical layer, layer two and layer three high layer protocol and OAM (operation and maintenance) function, and the OAM includes the control of the small base station radio frequency link.

[0069] The device also comprises a link multiplexing unit for multiplexing the small base station transceiving link and the repeater terminal-side transceiving link, and the repeater module transceiving link and the small base station module input / output signal must be adapted; the link multiplexing unit comprises a full multiplexing mode and a partial multiplexing mode.

[0070] The small base station first transmitting link and the small base station second transmitting link jointly realize the small base station transmitting function, and the division of the small base station first transmitting link and the small base station second transmitting link depends on the multiplexing mode of the repeater terminal-side repeater transmitting link and the small base station transmitting link. The multiplexing mode refers to the node at which the multiplexing starts in the transmitting link processing, i.e. the above-mentioned adaptation mode. If it is a full multiplexing mode, the small base station first transmitting link, the small base station second transmitting link and the repeater terminal-side repeater transmitting link are multiplexed, and the signal combination is completed through the combination unit; or the small base station first receiving link, the small base station second receiving link and the repeater terminal-side repeater receiving link are multiplexed, and the signal separation is completed through the separation unit; or the transmitting link multiplexing and the receiving link multiplexing exist simultaneously. That is, the small base station second transmitting link second part has no substantial function, and the small base station downlink data stream is directly sent to the small base station transmitting link first part through the combination.

[0071] Similarly, the small base station first receiving link and the small base station second receiving link jointly realize the small base station receiving function, and the division of the two depends on the multiplexing mode of the repeater terminal-side repeater receiving link and the small base station receiving link. The multiplexing mode mainly refers to the node at which the multiplexing starts in the small base station first receiving link and the small base station second receiving link processing, i.e. the above-mentioned adaptation mode. If it is a full multiplexing small base station receiving link, the small base station receiving link second part has no substantial function, and the small base station first receiving link data is directly sent to the protocol and OAM processing unit after the separation.

[0072] The small base station first transmitting link and the combination unit are the multiplexing part of the repeater and the small base station, and simultaneously realize the repeater terminal-side repeater transmitting function and the small base station part or all transmitting link function. The small base station first receiving link and the separation unit are the multiplexing part of the repeater and the small base station, and simultaneously realize the repeater terminal-side repeater receiving link function and the small base station part or all receiving link function.

[0073] The present application realizes the repeater terminal-side repeater transmitting link and receiving link through partial or full multiplexing small base station transmitting link and small base station receiving link, so as to realize both the repeater transceiving link function and the small base station transceiving link function, which greatly improves the integration degree and greatly reduces the cost compared with two functionally independent devices or simple integration.

[0074] As Figure 3As shown, it is a schematic diagram of the link multiplexing scheme of the device. The repeater module and the small base station module can implement one or more frequency bands and mobile communication functions of different systems. Different frequency bands or different systems can be implemented by one or more channels and antennas.

[0075] Since the repeater and the small base station are integrated, frequency interference problems may occur. To solve the above problems, considering the scene and cost, the signal bandwidth supported by the small base station is smaller than that of the repeater, so in this application, the interference signal is suppressed by the interference suppression module. Specifically, the interference suppression module suppresses the overlapping signal according to the processing node of the link unit. The link unit can suppress the overlapping signal through digital frequency domain, digital time domain or analog circuit; the overlapping signal is the signal of the frequency spectrum overlap part of the repeater module facing the terminal side before the transmission signal enters the link unit, and the receiving signal of the repeater module facing the terminal side before entering the repeater module from the branch unit.

[0076] Specifically, when the processing node of the link unit is a digital frequency domain, the amplitude of the overlapping signal is assigned as zero; for example, the frequency domain data of a 4G or 5G mobile communication base station, that is, the data of different carriers and subcarriers of different carriers is a digital signal, and is independent, so the amplitude of the part of the repeater signal that coincides with the carrier and subcarrier signal on the small base station side is directly assigned as zero.

[0077] When the processing node of the link unit is a digital time domain, the overlapping signal is suppressed by a digital filter. The digital filter suppresses the overlapping part of the repeater signal and the small base station signal. The performance parameters of the digital filter can be determined according to the suppression requirements, which are not limited in this application.

[0078] When the processing node of the link unit is an analog part, the overlapping signal is suppressed by an analog filter. The suppression effect depends on the performance of the analog filter. The receiving link of the repeater module facing the terminal side, that is, the signal that is multiplexed with the first receiving link of the small base station before entering the repeater transmission link from the branch unit, suppresses the overlapping signal that coincides with the frequency spectrum of the small base station. The suppression method is similar to that of the link node.

[0079] Furthermore, if the signal of the frequency spectrum overlap part of the repeater side and the small base station is a useful signal, such as data bearing the interaction between the donor base station and the terminal, then suppressing the overlapping signal will have an adverse effect on the service, which can be solved by changing the background configuration, such as adjusting the carrier, so that the frequency spectrum of the small base station carrier and the donor base station carrier does not overlap or the coordination between the donor base station and the small base station through the Xn interface for resource scheduling, so that the useful signals of the two do not overlap. It can be implemented according to the existing standard protocol, such as the standard protocol of 3GPP 4G and 5G NR.

[0080] The application will be further described in connection with different embodiments:

[0081] Embodiment 1

[0082] As shown in Figure 4.1 , the transceiving connection unit of the repeater module uses an antenna to realize the wireless signal transceiving between the repeater module and the donor base station through the antenna. The repeater transmitting link includes an analog circuit part, a second digital-to-analog conversion and a digital processing part. The analog circuit includes a second up-conversion, signal amplification and filtering, etc. In the specific implementation scheme of the analog circuit, a certain type of circuit can have multiple levels of implementation, or the type of circuit is less than Figure 4 the listed circuit composition.

[0083] The repeater receiving link includes an analog circuit part, a second analog-to-digital conversion and a digital processing part. In the specific implementation scheme of the analog circuit, a certain type of circuit can have multiple levels of implementation, or the type of circuit is less than Figure 4 the listed circuit composition. Figure 4 The first repeater digital processing unit in Figure 3 includes the digital processing part of the repeater transmitting link and the digital processing part of the repeater receiving link.

[0084] In one implementation manner of the embodiment, Figure 4 the structure diagram of the first repeater digital processing unit in is shown in 4.2. The transceiving link of the repeater module facing the donor base station includes a digital and analog processing part, and the digital part includes a frequency domain data node. Figure 4 The first implementation of the first digital processing unit of the small base station in Figure 4.3 is shown. The transceiving link of the small base station is completely multiplexed with the transceiving link of the repeater facing the terminal side, that is Figure 3 the second transmitting link of the small base station and the second receiving link of the small base station in have no substantial functions. The combining and splitting of the digital frequency domain data of the repeater module and the small base station module are realized through the first repeater digital processing unit and the first digital processing unit of the small base station, and the two are adaptive.

[0085] When it is necessary to process overlapping signals, the suppression function in the digital frequency domain as shown in Figure 4.4 can be added, that is, the repeater module assigns zero to the amplitude of the frequency domain data of the overlapping part of the transmitting data facing the terminal side before outputting to the combining unit. The small base station module assigns zero to the amplitude of the frequency domain data of the signal overlapping part before or after the data is output to the repeater module.

[0086] In another implementation manner of the embodiment, Figure 4 the second implementation of the first repeater digital processing unit in Figure 4.5 is shown. Figure 4The second implementation of the first digital processing unit of the small base station is as shown in Figure 4.6 The direct station module in the present application directly uses the data branched at the small base station side to perform buffering and synchronization and then sends to the second digital-to-analog conversion unit on the direct station transmitting link of the donor base station. The direct station module facing the direct station receiving link of the donor base station is directly sent to the small base station combining unit after the second analog-to-digital conversion and then buffering and synchronization. When the overlapping signal needs to be suppressed, a digital filter as shown in Figure 4.7 is also needed to implement.

[0087] Compared with the first implementation, the second implementation of the first direct station digital processing unit needs less digital processing links and generally needs less resources, but the flexibility is poor because the sub-carrier data cannot be distinguished, and the interface data rate between the direct station module and the small base station is high, which is not easy to process with the existing chips.

[0088] Because the digital processing link also has many nodes, the two implementation modes of the present embodiment are only two implementations of combining and branching in the digital domain for the link multiplexing between the direct station module and the small base station module, and the combining and branching are performed at other nodes, and the present application is also effective.

[0089] In the embodiment 1, the antenna is used for wireless signal transmission and reception between the direct station and the donor base station, so the deployment is relatively flexible, but it is not suitable for the area where the coverage of the donor base station is extremely weak.

[0090] The embodiment 2 is as shown in

[0091] As shown in Figure 5 , the transceiving connection unit of the direct station module in the present embodiment uses a radio frequency connector and is applied to the scenario as shown in Figure 5.1 , the direct station near-end machine and the small base station and the direct station fusion device transmit analog signals, which can generally use radio frequency cables for transmission. The other functional units in the present embodiment can use the functional units described in the embodiment 1.

[0092] The direct station module and the donor base station cannot directly transmit and receive signals in the embodiment 2, and the near-end machine is needed to realize the signal transmission and reception between the direct station and the donor base station. The present embodiment is suitable for the area where the coverage of the donor base station is extremely weak. The near-end machine is deployed in the area where the signal coverage is good, so as to realize the better signal interaction between the direct station and the donor base station.

[0093] The embodiment 3 is as shown in

[0094] As shown in Figure 6 , the transceiving connection unit of the direct station module or the direct station circuit module in the present embodiment uses a twisted pair or an optical fiber to transmit digital signals and is applied to the scenario as shown in Figure 5.1The scenario shown, and the repeater module is also provided with a near-end machine as in embodiment 2. Unlike embodiment 2, the repeater near-end machine transmits digital signals with the small base station and the repeater fusion device. The digital signal can be a signal of different digital processing nodes. If the signal is not a digital frequency domain signal such as 4G or 5G, the second repeater digital processing unit can have multiple digital processing links as in embodiment 1 or embodiment 2. At this time, the first digital processing unit of the small base station is the same as the second embodiment of embodiment 1.

[0095] The second repeater digital processing unit can also be as shown in Figure 6.1 only cache and synchronize the digital signal. If it is necessary to suppress the overlapping signal, a function of assigning zero to the frequency domain data amplitude of the overlapping signal can be added as shown in Figure 6.2 or a digital filtering function of the time domain of the overlapping signal can be added as shown in Figure 6.3 The time domain digital signal transmitted between the repeater module and the near-end machine. For the second repeater digital processing unit of Figure 6.1 , Figure 6.2 , Figure 6.3 The first digital processing unit of the small base station can be adapted as in embodiment 1.

[0096] In embodiment 3, the repeater module and the donor base station cannot directly transmit and receive signals, and the near-end machine is needed to realize signal transmission and reception between the repeater module and the donor base station. It is more suitable for areas with extremely weak coverage of the donor base station. This scenario must deploy a near-end machine in an area with good signal coverage in order to realize better signal interaction between the repeater module and the donor base station according to the present application of embodiment 3. The digital signal transmitted between the repeater module and the near-end machine uses media such as twisted pair or optical fiber, which simplifies the circuit of the repeater module facing the donor base station side and avoids the problem of repeater module radio frequency link calibration.

[0097] Embodiment 4

[0098] In embodiment 4, the transceiver connection unit of the repeater module or the repeater circuit module adopts the antenna mode as in embodiment 1 or the radio frequency cable mode as in embodiment 2. As shown in Figure 7 The multiplexing of the transceiver link of the repeater module facing the terminal and the transceiver link of the small base station is in the analog circuit part. The receiving link of the repeater module facing the donor base station can further adopt analog-to-digital conversion and further digital processing, which is mainly used to extract synchronization signals such as TDD carrier signals, etc. for the control of the radio frequency link, but not for the main link of the repeater module facing the donor base station and the terminal.

[0099] The different implementations of the second receiving analog signal processing and the first transmitting analog signal processing are as follows:

[0100] The first implementation is shown in the following figure: Figure 7.1 The combination of the second receiving analog signal processing and the first transmitting analog signal processing is in the analog baseband or intermediate frequency part, which is low in frequency and easy to process signals.

[0101] The second implementation is shown in the following figure: Figure 7.2 The combination of the second receiving analog signal processing and the first transmitting analog signal processing is in the radio frequency part, which is high in frequency and difficult to process signals.

[0102] The different implementations of the second transmitting analog signal processing and the first receiving analog signal processing are as follows:

[0103] The first implementation is shown in the following figure: Figure 7.3 The combination of the second receiving analog signal processing and the first transmitting analog signal processing is in the analog baseband or intermediate frequency part, which is low in frequency and easy to process signals.

[0104] The second implementation is shown in the following figure: Figure 7.4 The combination of the second receiving analog signal processing and the first transmitting analog signal processing is in the radio frequency part, which is high in frequency and difficult to process signals.

[0105] The implementation of the second digital processing unit is as shown in the following figure: Figure 7.5 It includes all aspects of digital processing, and CFR and DPD are optional units because CFR and DPD cannot be applied to the analog circuit combination scheme.

[0106] Since the combination and separation are performed in the analog part, the cost of the repeater module part is lower, but the processing difficulty in the analog part is greater, and the flexibility is weaker than that in the digital part.

[0107] The application provides a small base station and repeater fusion device, which integrates a small base station and a repeater, can meet the demand in a capacity-limited and weak signal coverage scenario, reduces deployment and maintenance costs, and suppresses signal interference. Different deployment environments and signal coverage situations are provided for flexible deployment options.

[0108] The above-described embodiments are only illustrative, wherein the modules described as separate components can or can not be physically separated, and the components shown as modules can or can not be physical modules, i.e., they can be located in one place or distributed on multiple network modules. Part or all of the modules can be selected to achieve the purpose of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0109] Finally, it should be noted that the embodiments disclosed by the present application are only the preferred embodiments of the present application, and are used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A small base station and repeater fusion device, characterized in that: include: The device body is provided with a repeater module, a small base station module, and an interference suppression module; The repeater module includes a transceiver connection unit, a duplexer, a repeater transmission link, and a repeater reception link. The transceiver connection unit is used to receive signals sent by the donor base station or the near-end machine / send repeater signals to the donor base station or the near-end machine. The duplexer is used to isolate and filter uplink and downlink signals, and perform uplink and downlink switching. The repeater transmission link and the repeater reception link are used to amplify and transmit the repeater signals. The small base station module includes a small base station transceiver link, a protocol and OAM processing unit, and a backhaul interface. The small base station transceiver link is used to transmit and receive signals between the small base station and the terminal, and the backhaul interface is used for data transmission between the small base station and the core network; the protocol and OAM processing unit is used to process the communication protocol between the small base station and the terminal / core network and the operation and maintenance functions of the equipment; The interference suppression module is used to suppress signal interference between the small base station module and the repeater module in the same spectrum, ensuring the stability of signal transmission.

2. The small base station and repeater fusion device according to claim 1, characterized in that: It also includes a link multiplexing unit, which is used to multiplex the small base station transceiver link and the terminal-facing transceiver link of the repeater, and the transceiver link of the repeater module is adapted to the input and output signals of the small base station module; the link multiplexing unit includes a full multiplexing mode and a partial multiplexing mode.

3. The small base station and repeater fusion device according to claim 2, characterized in that: The interference suppression module suppresses overlapping signals according to the processing node of the link where the combining unit is located; the overlapping signals are the signals of the transmission signal of the repeater module facing the terminal side before entering the combining unit, and the receiving signal of the repeater module facing the terminal side before entering the repeater from the branching unit, which overlap with the spectrum of the small base station module.

4. The small base station and repeater fusion device according to claim 3, characterized in that: When the processing node of the link where the combining unit is located is in the digital frequency domain, assigning the amplitude of the overlapping signal to zero; When the processing node of the link where the combining unit is located is in the digital time domain, suppressing the overlapping signal by a digital filter; When the processing node of the link where the combining unit is located is an analog part, the overlapping signal is suppressed by an analog filter.

5. The small base station and repeater fusion device according to claim 4, characterized in that: The small base station transceiver link includes a small base station first receiving link, a small base station second receiving link and a small base station first transmitting link, and a small base station second transmitting link; The repeater transmission link is adapted to the output signal of the first receiving link of the small base station; the repeater receiving link is adapted to the input signal of the first transmitting link of the small base station and the output signal of the second transmitting link of the small base station.

6. The small base station and repeater fusion device according to claim 5, characterized in that: When the link multiplexing unit is in full multiplexing mode, the first transmitting link of the small base station, the second transmitting link of the small base station and the transmitting link of the repeater facing the terminal side are multiplexed, and the signal combining is completed through the combining unit; or, the first receiving link of the small base station, the second receiving link of the small base station and the receiving link of the repeater facing the terminal side are multiplexed, and the signal branching is completed through the branching unit; or, the transmitting link multiplexing and receiving link multiplexing exist at the same time.

7. The small base station and repeater fusion device according to claim 5, characterized in that: When the link multiplexing unit is in partial multiplexing mode, the first transmission link of the small base station is multiplexed with the transmission link of the repeater facing the terminal side, and the second transmission link of the small base station operates independently; or, the first receiving link of the small base station is multiplexed with the receiving link of the repeater facing the terminal side, and the second receiving link of the small base station operates independently; or, the transmission link multiplexing and reception link multiplexing exist at the same time.

8. The small base station and repeater fusion device according to claim 1, characterized in that: The repeater module transceiver connection unit includes at least one of an antenna, a radio frequency connector, a twisted pair or an optical fiber.

9. A small base station and repeater fusion device, characterized in that: include: The device body is provided with a repeater circuit module, a small base station circuit module, a power supply module, and an operation and maintenance unit; The repeater circuit module completes the signal transmission, reception and amplification of the repeater to the donor base station and the signal transmission, reception and amplification to the terminal; The small base station circuit module implements signal reception and transmission, protocol processing between the terminal and the core network, as well as data transmission and protocol processing between the core network; the power supply module is responsible for supplying power to the repeater circuit module, the small base station circuit module, and the operation and maintenance unit; the operation and maintenance unit is responsible for the operation, maintenance and management of the equipment; The device body includes a power interface, an operation and maintenance interface, a backhaul interface, a repeater donor base station signal transceiver interface, a repeater terminal signal transceiver interface, and a small base station terminal signal transceiver interface. The operation and maintenance interface implements operation and maintenance management of the device body, and the backhaul interface implements data transmission between the small base station and the core network. The power supply module is connected to the power supply interface, the operation and maintenance unit is connected to the operation and maintenance interface, and the small base station circuit module and the repeater circuit module are connected to the power supply module and the operation and maintenance unit.

10. The small base station and repeater fusion device according to claim 9, characterized in that: The power supply module includes a power conversion circuit, and the small base station circuit module and the repeater circuit module are connected to the same or different power conversion circuits; The repeater donor base station signal transceiver interface and the repeater terminal signal transceiver interface hardware of the repeater circuit module include at least one of an antenna, a radio frequency connector, a twisted pair or an optical fiber.

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