Fusion equipment of small base station and repeater

Abstract

The invention discloses fusion equipment of a small base station and a repeater. The fusion equipment comprises an equipment main body; the repeater module comprises a transceiving connection unit, a duplexer, a repeater transmitting link and a repeater receiving link; the transceiving connection unit is used for receiving a signal sent by a donor base station or a near-end machine / sending a signal of a repeater to the donor base station or the near-end machine; the duplexer is used for isolating and filtering an uplink signal and a downlink signal and switching the uplink signal and the downlink signal; 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, an OAM processing unit and a return interface, and the interference suppression module is used for suppressing signal interference of the small base station module and the repeater module in the same frequency spectrum. According to the invention, the small base station and the repeater are integrated in the same equipment, so that the signal coverage can be enhanced, the capacity can be improved, and the problem of same-frequency interference can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and particularly to a small base station and a repeater integrated device. Background Art

[0002] The coverage range of mobile communication base stations generally decreases from large to small, including macro base stations, micro base stations, pico base stations, and femto base stations. For the sake of convenience of expression, micro base stations, pico base stations, and femto base stations are collectively referred to as small base stations. Since small base stations have complete base station functions, they can provide both capacity and signal coverage for blind spots and hot spots. In addition, to solve the signal coverage quality problem of coverage blind spots, repeaters are also used to provide signal coverage enhancement. The repeater amplifies the transmitted signal of the base station in the downlink direction and amplifies the transmitted signal of the terminal in the uplink simulation, thereby enhancing the coverage.

[0003] Generally, repeaters can achieve the enhancement of more carriers, systems (such as mobile communication 3G, 4G, 5G, etc.), and signals with larger bandwidths, but they can only achieve the enhancement of the energy of the covered signal and cannot provide capacity enhancement in scenarios with limited capacity. Due to the small coverage range of small base stations, considering factors such as cost and power consumption, the types of supported systems, the number of carriers, and the bandwidth are generally weaker. However, since small base stations have complete base station functions, they can provide a certain amount of capacity and have certain advantages in scenarios with limited capacity.

[0004] For scenarios with limited capacity and weak signal coverage in a small area, if a macro base station is added, the cost will increase significantly, the deployment difficulty will also be relatively high, and it is also difficult to meet the requirements of network planning. If only small base stations are added, some capacity problems can be solved, but the capabilities of the original base stations providing coverage in the target area are not fully utilized. As Figure 1 shown, if a small base station and a repeater are deployed simultaneously in this scenario, both capacity enhancement and enhancement of signals with larger bandwidths can be achieved, but the deployment cost is still relatively high, and there is interference between the repeater and the small base station. Summary of the Invention

[0005] Based on the above deficiencies of the prior art, the present invention provides a small base station and a repeater integrated device, which integrates a small base station and a repeater in the same device, can not only enhance signal coverage but also provide capacity improvement, and effectively avoids the problem of co-frequency interference at the same time.

[0006] The present invention discloses a small base station and a repeater integrated device, including:

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

[0008] 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 proximal unit / send signals of the repeater to the donor base station or the proximal unit; the duplexer is used to isolate, filter the uplink signal and the downlink signal, and implement the uplink and downlink switching function; the repeater transmission link and the repeater reception link are used to amplify and transmit the repeater signals;

[0009] The small cell module includes a small cell transceiver link, a protocol and OAM processing unit, and a fronthaul interface. The small cell transceiver link is used to transmit signals between the small cell and the terminal, and the fronthaul interface is used for data transmission between the small cell and the core network; the protocol and OAM processing unit is used to process the communication protocol between the small cell and the terminal / core network and the operation and maintenance functions of the device;

[0010] The interference suppression module is used to suppress the signal interference between the small cell module and the repeater module in the same spectrum to ensure the 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 cell transceiver link and the repeater transceiver link facing the terminal side, and adapting the transceiver link of the repeater module to the input and output signals of the small cell module; the link multiplexing unit includes a full multiplexing mode and a partial multiplexing mode.

[0012] In some embodiments, the interference suppression module suppresses the overlapping signals according to the processing nodes of the link where the combining unit is located; the overlapping signals are the signals of the overlapping part of the spectrum with the small cell module before the transmission signal of the repeater module facing the terminal side enters the combining unit and before the reception 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 the digital frequency domain, the amplitude of the overlapping signal is assigned zero;

[0014] When the processing node of the link where the combining unit is located is the 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 the analog part, the overlapping signal is suppressed by an analog filter.

[0016] In some embodiments, the small cell transceiver link includes a small cell first reception link, a small cell second reception link, a small cell first transmission link, and a small cell second transmission link;

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

[0018] In some embodiments, when the link multiplexing unit is in the 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 a 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 splitting is completed through a splitting unit; or, both the transmitting link multiplexing and the receiving link multiplexing exist simultaneously.

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

[0020] The present invention also discloses a small base station and repeater integrated device, including:

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

[0022] The repeater circuit module completes the signal transceiver and amplification of the repeater facing the donor base station and the signal transceiver and amplification facing the terminal; the small base station circuit module realizes the signal transceiver, protocol processing between the small base station and the terminal, and data transmission and protocol processing between the small base station and 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 and maintenance management of the device;

[0023] The device main body 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 main body, and the backhaul interface realizes the data transmission between the small base station and the core network;

[0024] 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.

[0025] In some embodiments, 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.

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

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] The present invention provides a small cell and repeater integrated device that integrates a small cell and a repeater, can meet the requirements in scenarios with limited capacity and weak signal coverage, while reducing the deployment and maintenance costs and the integration cost. Flexible deployment options are provided for different deployment environments and signal coverage situations. At the same time, the overlapping spectrum between the repeater module and the small cell module is suppressed, thus avoiding interference between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of simultaneously deploying an independent small cell and an independent repeater provided for the background art;

[0030] Figure 2 Schematic diagram of the structure of a small cell and repeater integrated device provided by the present invention;

[0031] Figure 2.1 For the present invention Figure 2 Schematic diagram of a structure implemented by a power converter and an operation and maintenance unit of a small cell and repeater integrated device shown in the present invention;

[0032] Figure 2.2 For the present invention Figure 2 Another schematic diagram of a structure implemented by a power converter and an operation and maintenance unit of a small cell and repeater integrated device shown in the present invention;

[0033] Figure 3 Schematic diagram of the link multiplexing of a small cell and repeater integrated device provided by the present invention;

[0034] Figure 4 Schematic diagram of the structure of Embodiment 1 of a small cell and repeater integrated device provided by the present invention;

[0035] Figure 4.1 Application scenario diagram of Embodiment 1 of a small cell and repeater integrated device provided by the present invention;

[0036] Figure 4.2 Schematic diagram of the structure of the first repeater digital processing unit of Embodiment 1 of a small cell and repeater integrated device provided by the present invention;

[0037] Figure 4.3Schematic diagram of the first digital processing unit of the small base station in Embodiment 1 of the small base station and repeater integrated device provided by the present invention;

[0038] Figure 4.4 Another schematic diagram of the small base station and repeater integrated device in Embodiment 1 provided by the present invention;

[0039] Figure 4.5 Another schematic diagram of the first digital processing unit of the repeater in Embodiment 1 of the small base station and repeater integrated device provided by the present invention;

[0040] Figure 4.6 Another schematic diagram of the first digital processing unit of the small base station in Embodiment 1 of the small base station and repeater integrated device provided by the present invention;

[0041] Figure 4.7 Another schematic diagram of the first digital processing unit of the small base station in Embodiment 1 of the small base station and repeater integrated device provided by the present invention;

[0042] Figure 5 Schematic diagram of the small base station and repeater integrated device in Embodiment 2 provided by the present invention;

[0043] Figure 5.1 Application scenario diagram of the small base station and repeater integrated device in Embodiments 2 and 3 provided by the present invention;

[0044] Figure 6 Schematic diagram of the small base station and repeater integrated device in Embodiment 3 provided by the present invention;

[0045] Figure 6.1 Another schematic diagram of the second digital processing unit of the repeater in Embodiment 3 of the small base station and repeater integrated device provided by the present invention;

[0046] Figure 6.2 Another schematic diagram of the second digital processing unit of the repeater in Embodiment 3 of the small base station and repeater integrated device provided by the present invention;

[0047] Figure 6.3 Another schematic diagram of the second digital processing unit of the repeater in Embodiment 3 of the small base station and repeater integrated device provided by the present invention;

[0048] Figure 7 Schematic diagram of the small base station and repeater integrated device in Embodiment 4 provided by the present invention;

[0049] Figure 7.1Schematic diagram for processing the first transmitted analog signal and the second received analog signal in Embodiment 4 of a small base station and repeater integrated device provided by the present invention;

[0050] Figure 7.2 Another schematic diagram for processing the first transmitted analog signal and the second received analog signal in Embodiment 4 of a small base station and repeater integrated device provided by the present invention;

[0051] Figure 7.3 Schematic diagram for processing the second transmitted analog signal and the first received analog signal in Embodiment 4 of a small base station and repeater integrated device provided by the present invention;

[0052] Figure 7.4 Another schematic diagram for processing the second transmitted analog signal and the first received analog signal in Embodiment 4 of a small base station and repeater integrated device provided by the present invention;

[0053] Figure 7.5 Schematic diagram of the structure of the second digital processing unit in Embodiment 4 of a small base station and repeater integrated device provided by the present invention. Detailed implementation manners

[0054] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] The terms "including" and "having" in the embodiments of the present invention and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or modules does not necessarily limit to those clearly listed steps or modules, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0056] The present invention provides a small base station and repeater integrated device, which integrates a small base station and a repeater in the same device, can not only enhance signal coverage, but also provide capacity improvement.

[0057] Specifically, this device includes a device main body, which is provided with a repeater circuit module, a small base station module circuit module, a power supply module, and an operation and maintenance unit. The repeater circuit module completes signal transceiver and amplification for the repeater facing the donor base station and signal transceiver and amplification for the terminal. The small base station circuit module realizes signal transceiver and protocol processing with the terminal and data transmission and protocol processing with the core network. The power supply module is responsible for powering 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 and maintenance management of the device.

[0058] The device main body further 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 main 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] As Figure 2 shown, the small base station circuit module and the repeater circuit module are simply integrated into one device, sharing the device structure parts, power supply, and operation and maintenance interface. The repeater circuit module is responsible for enhancing signal coverage, and the small base station circuit module provides base station services. Their signal links are completely independent, solving the problem of relatively high deployment and maintenance costs in the scenario of simultaneous deployment of the two in the same area.

[0060] The small base station circuit module and the repeater circuit module are arranged in one device, and one 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. As Figure 2.1 shown, the power supply module inside the device can be divided into two to supply power to the repeater module and the small base station module respectively, and their power conversion circuits are independent. Or as Figure 2.2 shown, the repeater module and the small base station module share the power conversion circuit and are powered by the same power supply 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 realize operation and maintenance.

[0061] The small base station module and the repeater module are simply integrated into the device body, reducing the device cost and the deployment and maintenance costs. However, since the transceiver links of the repeater module and the small base station module are completely independent, the cost and power consumption are still relatively high, and there is easily a signal interference problem. Therefore, in another embodiment shown below, the present invention further reduces the cost of the integrated device through link multiplexing, reduces the power consumption, and avoids the interference problem between the small base station and the repeater.

[0062] Specifically, this device includes a device main body, and the device main body is provided with a repeater module, a small cell module, and an interference suppression module; the repeater module includes a transceiver connection unit, a duplexer, a repeater transmission link, a repeater reception link, and a control unit; the transceiver connection unit is used to receive signals from a donor base station or a proximal unit / send signals of the repeater to a donor base station or a proximal unit; the duplexer is used to implement isolation (FDD mode) and filtering of uplink signals and downlink signals and the function of uplink and downlink switching (TDD mode); the repeater transmission link and the repeater reception link are used to amplify and transmit repeater signals; the small cell module is used to provide small cell functions, and the small cell module includes a small cell transceiver link, a protocol and OAM processing unit, and a backhaul interface. The small cell transceiver link is used to implement signal transceiver between the small cell and the terminal, and the backhaul interface is used for data transmission between the small cell and the core network; the protocol and OAM processing unit is used to process communication protocols between the small cell and the terminal / core network and the operation and maintenance functions of the device; the interference suppression module is used to suppress signal interference between the small cell module and the repeater module in the same spectrum to ensure the stability of signal transmission.

[0063] As Figure 3 shown, the repeater module includes a transceiver connection unit, a duplexer, a repeater transmission link, a repeater reception link, and a repeater digital processing and control unit. The transceiver connection unit is used to directly receive or receive the transmitted signal of the donor base station through the repeater proximal unit and send signals to the donor base station. In this embodiment, the duplexer is the second duplexer in Figure 3 , and its function depends on the TDD or FDD mode to achieve signal separation and isolation. In the TDD mode, the second duplexer implements the functions of a switch and a filter; for the FDD mode, the second duplexer implements isolation of the transceiver frequency bands. The repeater transmission link is used to amplify the terminal uplink signal, and the repeater reception link is used to receive and amplify the signals of the donor base station. The repeater transmission link and the repeater reception link both need to be adapted to the small cell transceiver link.

[0064] The repeater transmitting link realizes the amplification and transmission functions of the terminal uplink signal. It can include a digital part and an analog part, or only an analog part, but all need to be adapted to the output signal of the first receiving link of the small base station. If the small base station module distributes the signal after the digital processing part and outputs the repeater signal to the repeater transmitting link, for example, it is output after FFT, then the repeater transmitting link also needs to include a digital processing part and needs to start processing with the frequency-domain data after FFT as the input; if the small base station distributes the signal in the analog circuit part, for example, after the radio frequency signal filter of its received signal is amplified and without down-conversion, and the analog signal is sent to the repeater transmitting link through the distribution unit, then the repeater transmitting link processes the received analog signal and does not need to go through digital processing, digital-to-analog conversion, and analog up-conversion, but only needs to perform processing such as amplification and filtering.

[0065] The repeater receiving link realizes the reception and amplification of the donor base station signal. It 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 by the second transmitting link of the small base station. The signal type and processing node of the output signal of the repeater receiving link before combining with the output signal of the second transmitting link of the small base station also need to be adapted.

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

[0067] 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 realize the signal transceiver 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 protocols between the small base station and the terminal / core network; the small base station transceiver link includes a first receiving link of the small base station, a second receiving link of the small base station, a first transmitting link of the small base station, and a second transmitting link of the small base station.

[0068] The backhaul interface is used for data transmission between the small base station and the core network, and it is possible to go through a gateway between the small base station and the core network. The backhaul interface adopts different interface forms, such as optical interfaces, RJ-45, etc. The protocol and OAM processing unit is used to process high-level protocols such as the physical layer, layer 2, and layer 3, as well as the OAM (operation and maintenance) function. OAM includes the control of the small base station radio frequency link, etc.

[0069] The device also includes a link multiplexing unit, which is used for multiplexing the transceiver link of the small base station and the transceiver link of the repeater facing the terminal side. The transceiver link of the repeater module and the input / output signals of the small base station module must be adapted; the link multiplexing unit includes a full multiplexing mode and a partial multiplexing mode.

[0070] The first transmission link of the small base station and the second transmission link of the small base station jointly implement the transmission function of the small base station. The division of the first transmission link of the small base station and the second transmission link of the small base station depends on the multiplexing method of the repeater transmission link facing the terminal and the small base station transmission link. The multiplexing method refers to the node at which multiplexing starts in the processing of the transmission link, that is, the aforementioned adaptation method. If it is the full multiplexing mode, the first transmission link of the small base station, the second transmission link of the small base station, and the transmission link of the repeater facing the terminal side are multiplexed, and signal combining is completed through a 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 signal splitting is completed through a splitting unit; or, the above-mentioned transmission link multiplexing and receiving link multiplexing exist simultaneously. That is to say, the second part of the second transmission link of the small base station has no substantial function, and the downlink data stream of the small base station directly passes through the combiner and is sent to the first part of the small base station transmission link.

[0071] Similarly, the first receiving link of the small base station and the second receiving link of the small base station jointly implement the receiving function of the small base station. How they are divided depends on the multiplexing method of the repeater receiving link facing the terminal and the small base station receiving link. The multiplexing method mainly refers to the node at which multiplexing starts in the processing of the first receiving link of the small base station and the second receiving link of the small base station, that is, the aforementioned adaptation method. If it is the full multiplexing of the small base station receiving link, the second part of the small base station receiving link has no substantial function, and the data of the first receiving link of the small base station is directly sent to the protocol and OAM processing unit after splitting.

[0072] The first transmission link of the small base station and the combining unit are the multiplexing parts of the repeater and the small base station, and jointly implement the transmission of the repeater facing the terminal and the function of part or all of the transmission links of the small base station. The first receiving link of the small base station and the splitting unit are the multiplexing parts of the repeater and the small base station, and jointly implement the receiving link of the repeater facing the terminal and the function of part or all of the receiving links of the small base station.

[0073] The present invention realizes the transmission link and the receiving link of the repeater facing the terminal side by partially or fully multiplexing the transmission link and the receiving link of the small base station, thereby realizing both the transceiver link function of the repeater and the transceiver link function of the small base station. This represents a significant improvement in integration and a significant reduction in cost compared to two functionally independent devices or a simple integration method.

[0074] Such as Figure 3As shown in the figure, it is a schematic diagram of the device link multiplexing solution. The repeater module and the small cell module can implement mobile communication functions of one or more frequency bands and systems, and one or more channels and antennas can be used for different frequency bands or systems.

[0075] Since the repeater and the small cell are integrated, there will be a problem of frequency interference. To solve the above problem, considering the scenario and cost, generally the signal bandwidth supported by the small cell is less than that of the repeater. Therefore, in this application, the interference suppression module is used to suppress the interference signal. Specifically, the interference suppression module suppresses the overlapping signal according to the processing node of the link where the combining unit is located. The combining unit can suppress the overlapping signal through digital frequency domain, digital time domain or analog circuit; the overlapping signal is the signal of the overlapping part of the spectrum before the transmission signal of the repeater module facing the terminal side enters the combining unit and before the receiving signal of the repeater module facing the terminal side enters the repeater module from the splitting unit and the small cell module.

[0076] Specifically, when the processing node of the link where the combining unit is located is the digital frequency domain, the amplitude of the overlapping signal is assigned zero; for example, the frequency domain data of 4G and 5G mobile communication base stations, that is, the data of different carriers and sub-carriers of different carriers are digital domain signals and are independent, then directly assign zero to the amplitude of the overlapping part of the carrier and sub-carrier signals on the repeater signal side and the small cell side.

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

[0078] When the processing node of the link where the combining unit is located is the analog part, the overlapping signal is suppressed by an analog filter. The suppression effect depends on the performance of the analog filter. Before the receiving link of the repeater module facing the terminal side, that is, the signal of the part multiplexed with the first receiving link of the small cell enters the transmitting link of the repeater from the splitting unit, the overlapping signal overlapping with the spectrum of the small cell is suppressed, and the suppression method is similar to the suppression method of the combining node.

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

[0080] The present invention will be further described below in conjunction with different embodiments:

[0081] Embodiment 1

[0082] As Figure 4.1 shown, the transceiver connection unit of the repeater module uses an antenna to directly realize the wireless signal transceiver between the repeater module and the donor base station through the antenna. The repeater transmission 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 a specific implementation scheme of the analog circuit, a certain type of circuit may have multiple levels of implementation, or the types of circuits are less than Figure 4 the circuits listed.

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

[0084] In one implementation manner of this embodiment, Figure 4 the structure diagram of the first repeater digital processing unit in Figure 4 is shown in Figure 4.2. The transceiver link of the repeater module facing the donor base station includes digital and analog processing parts, and the digital part includes frequency-domain data nodes. Figure 4.3 The first embodiment of the first digital processing unit of the small base station is as Figure 3 shown. The transceiver link of the small base station is completely multiplexed with the transceiver link of the repeater facing the terminal side, that is,

[0085] the second transmission link and the second receiving link of the small base station in Figure 4.4 have no substantial functions. The first repeater digital processing unit and the first digital processing unit of the small base station are used to realize the combining and splitting of the digital frequency-domain data of the repeater module and the small base station module, and the two are adapted.

[0086] When it is necessary to process overlapping signals, a digital frequency-domain suppression function as Figure 4 shown in Figure 4.5 can be added, that is, in the repeater module, before the transmission data facing the terminal side is output to the combining unit, the amplitude value of the frequency-domain data of the overlapping part with the signal output by the small base station module is set to zero; in the splitting unit of the small base station module, the amplitude value of the frequency-domain data of the overlapping part of the signal is set to zero before or after the data is output to the repeater module. Figure 4The second embodiment of the first digital processing unit of the small base station is as follows Figure 4.6 shown. In this application, the repeater module directly uses the data after splitting on the small base station side on the repeater transmission link of the donor base station side for caching and synchronization, and then sends it to the second digital-to-analog conversion unit. The repeater receiving link of the repeater module facing the donor base station is directly sent to the small base station combining unit after passing through the second analog-to-digital conversion and then through caching and synchronization. When it is necessary to suppress overlapping signals, it is also necessary to add digital filtering as shown in Figure 4.7 to implement.

[0087] Compared with the first embodiment, the second embodiment of the first digital processing unit of the repeater requires fewer digital processing links. Generally speaking, it may require fewer resources. However, since it cannot distinguish subcarrier data, its flexibility is poor, and the interface data rate between the repeater module and the small base station is high, which is not easy to process with existing chips.

[0088] Since there are also many nodes in the digital processing link, the two implementation methods in this embodiment are only two embodiments of realizing combining and splitting in the digital domain by multiplexing the links of the repeater module and the small base station module. The present invention is equally effective for combining and splitting at other nodes.

[0089] In Embodiment 1, an antenna is used for wireless signal transceiver between the repeater and the donor base station, so the deployment is relatively flexible, but it is not very suitable for areas with extremely weak coverage of the donor base station.

[0090] Embodiment 2

[0091] As Figure 5 shown, the transceiver connection unit of the repeater module uses a radio frequency connector in this embodiment and is applied to the scenario as shown in Figure 5.1 where an analog signal is transmitted between the near-end machine of the repeater and the fusion device of the small base station and the repeater. Generally, a radio frequency cable can be used for transmission. Other functional units in this embodiment can use the functional units described in Embodiment 1.

[0092] In Embodiment 2, the repeater module and the donor base station cannot directly transceiver signals, and a near-end machine is required in the middle to realize signal transceiver with the donor base station. This embodiment is applicable to areas with extremely weak coverage of the donor base station. By deploying a near-end machine in an area with good signal coverage, better signal interaction between the repeater and the donor base station can be realized.

[0093] Embodiment 3

[0094] As Figure 6 shown, the transceiver connection unit of the repeater module or the repeater circuit module uses a medium for transmitting digital signals such as twisted pair or optical fiber in this embodiment and is applied to the scenario as shown in Figure 5.1For the scenario shown, the repeater module is also provided with a proximal unit as in Embodiment 2. Different from Embodiment 2, digital signals are transmitted between the proximal unit of the repeater and the integrated device of the small base station and the repeater. The digital signal can be the signal of different digital processing nodes. If the signal is not a digital frequency domain signal such as 4G or 5G, the second digital processing unit of the repeater can have digital processing with multiple 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 that described in the second implementation manner of Embodiment 1.

[0095] The second digital processing unit of the repeater can also Figure 6.1 as shown, only cache and synchronize the digital signal. If it is necessary to suppress the overlapping signal, a function of zeroing the amplitude of the overlapping signal frequency domain data can be set as Figure 6.2 shown, that is, a function of zeroing the amplitude of the overlapping signal frequency domain data in the frequency domain digital signal transmitted between the repeater module and the proximal unit, or as Figure 6.3 shown, a digital filtering function in the time domain of the overlapping signal is added, for the time domain digital signal transmitted between the repeater module and the proximal unit. For Figure 6.1 , Figure 6.2 , Figure 6.3 the second digital processing unit, the first digital processing unit of the small base station can select an appropriate implementation scheme as in Embodiment 1.

[0096] In Embodiment 3, the repeater module and the donor base station cannot directly transmit and receive signals, and a proximal unit is required in the middle to realize signal transmission and reception with the donor base station. This is more suitable for areas with extremely weak coverage of the donor base station. In this scenario, a proximal unit must be deployed in an area with better signal coverage so that the repeater module and the donor base station described in the present invention in Embodiment 3 can achieve better signal interaction. Digital signals are transmitted between the repeater module and the proximal unit, using media such as twisted pairs or optical fibers, which simplifies the circuit on the side of the repeater module facing the donor base station and also avoids the problem of radio frequency link calibration of the repeater module.

[0097] Embodiment 4

[0098] For Embodiment 4, the transceiver connection unit of the repeater module or the repeater circuit module adopts the method of the antenna in Embodiment 1 or the method of the RF cable in Embodiment 2. As Figure 7 shown, the multiplexing of the transceiver link of the repeater module facing the terminal and the transceiver link of the small base station is all 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, and the main function is to extract synchronous signals such as TDD-mode carriers, etc., for realizing the control of the radio frequency link, rather than being used in the main links of the repeater module facing the donor base station and the terminal.

[0099] Examples of different implementations of the second received analog signal processing and the first transmitted analog signal processing are as follows:

[0100] The first implementation is as Figure 7.1 shown. The combination of the second received analog signal processing and the first transmitted analog signal processing signals is in the analog baseband or intermediate frequency part, where the frequency is low and it is easy to process the signals.

[0101] The second implementation is as Figure 7.2 shown. The combination of the second received analog signal processing and the first transmitted analog signal processing signals is in the radio frequency part, where the frequency is high and the signal processing is more difficult.

[0102] Examples of different implementations of the second transmitted analog signal processing and the first received analog signal processing are as follows:

[0103] The first implementation is as Figure 7.3 shown. The interface between the second transmitted analog signal processing and the first received analog signal processing signals is in the analog baseband or intermediate frequency part, where the frequency is low and the signal processing is easier.

[0104] The second implementation is as Figure 7.4 shown. The interface between the second transmitted analog signal processing and the first received analog signal processing signals is in the radio frequency part, where the frequency is high and the signal processing is more difficult.

[0105] An example of the second digital processing unit is as Figure 7.5 shown, including all links of digital processing, where CFR and DPD are optional units because CFR and DPD are not applicable to the analog circuit combination scheme.

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

[0107] The present invention provides a small base station and repeater integrated device, which integrates a small base station and a repeater, can meet the requirements in scenarios with limited capacity and weak signal coverage, reduces the deployment and maintenance costs at the same time, and suppresses signal interference. Flexible deployment options are provided for different deployment environments and signal coverage situations.

[0108] The embodiments described above are only illustrative. The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative labor.

[0109] Finally, it should be noted that the disclosed embodiments of the present invention are only the preferred embodiments of the present invention, and are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; 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 various embodiments of the present invention.

Claims

1. A small base station and repeater integrated device, characterized in that Including: A device main body, which 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 transmitting link, and a repeater receiving link; the transceiver connection unit is used to receive signals sent by a donor base station or a proximal unit / to send signals of the repeater to a donor base station or a proximal unit; the duplexer is used to isolate, filter, and switch between the uplink signal and the downlink signal; the repeater transmitting link and the repeater receiving 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 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 communication protocols between the small base station and the terminal / core network and the operation and maintenance functions of the device; An interference suppression module, which is used to suppress signal interference between the small base station module and the repeater module in the same spectrum to ensure the stability of signal transmission.

2. The integrated device of a small base station and a repeater according to claim 1, characterized in that, It further includes a link multiplexing unit, which is used for multiplexing the small base station transceiver link and the repeater transceiver link facing the terminal side, and adapting the transceiver link of the repeater module 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 integrated device of a small base station and a repeater according to claim 2, characterized in that The interference suppression module suppresses the overlapping signals according to the processing nodes of the link where the combining unit is located; the overlapping signals are the signals in the overlapping part of the spectrum with the small base station module before the transmitting signal of the repeater module facing the terminal side enters the combining unit and before the receiving signal of the repeater module facing the terminal side enters the repeater from the splitting unit.

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

5. The integrated device of a small base station and a repeater 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, a small base station first transmitting link, and a small base station second transmitting link; The output signal of the repeater transmitting link is adapted to the input signal of the small base station first receiving link; the input signal of the repeater receiving link is adapted to the output signal of the small base station first transmitting link and the output signal of the small base station second transmitting link.

6. The integrated device of a small base station and a repeater according to claim 5, wherein When the link multiplexing unit is in the full multiplexing mode, the small base station first transmitting link, the small base station second transmitting link, and the repeater transmitting link facing the terminal side are multiplexed, and the signals are combined through a combining unit; or, the small base station first receiving link, the small base station second receiving link, and the repeater receiving link facing the terminal side are multiplexed, and the signals are split through a splitting unit; or, the multiplexing of the transmitting link and the multiplexing of the receiving link exist simultaneously.

7. The integrated device of a small base station and a repeater according to claim 5, characterized in that When the link multiplexing unit is in the partial multiplexing mode, the first part of the first transmission link of the small cell is multiplexed with the transmission link of the repeater facing the terminal side, and the second transmission link of the small cell operates independently; or, the first receiving link of the small cell is multiplexed with the receiving link of the repeater facing the terminal side, and the second receiving link of the small cell operates independently; or, both the transmission link multiplexing and the receiving link multiplexing exist simultaneously.

8. A small base station and repeater integrated device, characterized in that, Including: A device main body, which is provided with a repeater circuit module, a small cell circuit module, a power supply module, and an operation and maintenance unit; The repeater circuit module completes the signal transceiver and amplification of the repeater facing the donor base station and the signal transceiver and amplification facing the terminal; The small cell circuit module realizes the signal transceiver, protocol processing between the small cell and the terminal, and data transmission and protocol processing between the small cell and the core network; the power supply module is responsible for supplying power to the repeater circuit module, the small cell circuit module, and the operation and maintenance unit; the operation and maintenance unit is responsible for the operation and maintenance management of the device; The device main body 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 cell terminal signal transceiver 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 cell 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 cell circuit module and the repeater circuit module are connected to the power supply module and the operation and maintenance unit.

9. The integrated device of a small base station and a repeater according to claim 8, characterized in that, The power supply module includes a power conversion circuit, and the small cell circuit module and the repeater circuit module are connected to the same or different power conversion circuits.

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

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