CN115276705A - Wireless micro-distribution system - Google Patents
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及无线通信的技术领域，特别是涉及一种无线微分布系统。The invention relates to the technical field of wireless communication, in particular to a wireless micro-distribution system.
背景技术Background technique
对于室内的覆盖方案，传统4G(the 4th generation mobile communicationtechnology，第四代移动通信技术)系统无源DAS(Distributed Antenna System，分布式天线系统)系统的馈线链路频率只能支持到3G(3rd-Generation，第三代移动通信技术)，3G以上的5G(5th Generation Mobile Communication Technology，第五代移动通信技术)频率无线覆盖，不能直接利用目前室内的无源DAS系统和无源器件实现，目前的无源器件在3GHz以上的损耗很大，对现有DAS系统的改造需要推动无源器件的指标优化和器件的升级，实现周期长难度大。在很多5G室分场景，需要新建5G室分系统。For indoor coverage solutions, the feeder link frequency of the traditional 4G (the 4th generation mobile communication technology, fourth generation mobile communication technology) system passive DAS (Distributed Antenna System, distributed antenna system) system can only support 3G (3rd- Generation, third-generation mobile communication technology), 5G (5th Generation Mobile Communication Technology, fifth-generation mobile communication technology) frequency wireless coverage above 3G, cannot directly use the current indoor passive DAS system and passive devices to achieve, the current The loss of passive devices above 3 GHz is very large. The transformation of the existing DAS system needs to promote the optimization of the indicators of passive devices and the upgrading of devices, and the implementation period is long and difficult. In many 5G indoor distribution scenarios, a new 5G indoor distribution system needs to be built.
目前室分无线覆盖的系统布局上面，业界通用方案是，采用5G的小站系统实现室内带容量的无线覆盖，小站系统采用的三级系统架构为接入单元(Access Unit，AU)、扩展单元(Extended Unit，EU)和覆盖单元(Remote Unit，RU)组成。但是针对新建的室分系统，既要满足5G的无线覆盖，同时也要满足4G或3G的多业务无线覆盖，则需要3G、4G或5G的单模小基站实现或5G的单模小基站和3G、4G的无源DAS系统实现室分的多业务覆盖，这样一来增加了工程施工的成本和难度。At present, the system layout of indoor wireless coverage, the common solution in the industry is to use 5G small cell system to achieve indoor wireless coverage with capacity. The three-level system architecture adopted by the small cell system is Access Unit (AU), extension Unit (Extended Unit, EU) and coverage unit (Remote Unit, RU). However, for the newly built indoor distribution system, it is necessary to meet the wireless coverage of 5G and the multi-service wireless coverage of 4G or 3G at the same time, which requires 3G, 4G or 5G single-mode small base stations or 5G single-mode small base stations and The passive DAS system of 3G and 4G realizes indoor multi-service coverage, which increases the cost and difficulty of engineering construction.
发明内容Contents of the invention
鉴于上述问题，提出了以便提供克服上述问题或者至少部分地解决上述问题的一种无线微分布系统，包括：In view of the above problems, it is proposed to provide a wireless micro-distribution system that overcomes the above problems or at least partially solves the above problems, including:
有源天线单元、扩展单元和覆盖单元，所述有源天线单元与所述扩展单元连接，所述扩展单元与所述覆盖单元连接；an active antenna unit, an extension unit and a coverage unit, the active antenna unit is connected to the extension unit, and the extension unit is connected to the coverage unit;
所述有源天线单元包括宽频双极化有源天线和针对不同频段的多个第一射频单元；所述宽频双极化有源天线用于收发不同频段的射频信号，所述多个第一射频单元用于对不同频段的射频信号进行第一信号处理；The active antenna unit includes a broadband dual-polarization active antenna and a plurality of first radio frequency units for different frequency bands; the broadband dual-polarization active antenna is used to send and receive radio frequency signals in different frequency bands, and the plurality of first radio frequency units The radio frequency unit is used to perform first signal processing on radio frequency signals in different frequency bands;
所述扩展单元，用于对所述有源天线单元发送给所述覆盖单元的光信号进行转发；以及，用于对所述覆盖单元发送给所述有源天线单元的光信号进行转发；The extension unit is configured to forward the optical signal sent by the active antenna unit to the covering unit; and is used to forward the optical signal sent by the covering unit to the active antenna unit;
所述覆盖单元，用于收发不同频段的射频信号；以及，用于对不同片段的射频信号进行第二信号处理。The covering unit is configured to send and receive radio frequency signals of different frequency bands; and is configured to perform second signal processing on radio frequency signals of different segments.
可选地，所述有源天线单元还包括射频板卡，所述射频板卡与所述宽频双极化有源天线和馈线连接，所述馈线的另一端与基站连接，所述多个第一射频单元分别与所述射频板卡连接；Optionally, the active antenna unit further includes a radio frequency board, the radio frequency board is connected to the broadband dual-polarized active antenna and a feeder, the other end of the feeder is connected to the base station, and the plurality of first A radio frequency unit is respectively connected to the radio frequency board;
所述射频板卡以有线耦合馈入的方式收发不同频段的射频信号；以及，以无线馈入的方式收发不同频段的射频信号。The radio frequency board card transmits and receives radio frequency signals of different frequency bands in the manner of wired coupling and feed-in; and transmits and receives radio frequency signals of different frequency bands in the manner of wireless feed-in.
可选地，所述宽频双极化有源天线包括针对不同频段的射频信号的宽频天线。Optionally, the broadband dual-polarized active antenna includes a broadband antenna for radio frequency signals in different frequency bands.
可选地，所述扩展单元包括光路分发单元和供电单元；Optionally, the extension unit includes an optical path distribution unit and a power supply unit;
所述光路分发单元用于对所述有源天线单元发送给所述覆盖单元的光信号进行分发；以及，用于对所述覆盖单元发送给所述有源天线单元的光信号进行转发；The optical path distribution unit is used for distributing the optical signal sent by the active antenna unit to the coverage unit; and for forwarding the optical signal sent by the coverage unit to the active antenna unit;
所述供电单元用于向所述有源天线单元和所述覆盖单元进行供电。The power supply unit is used to supply power to the active antenna unit and the covering unit.
可选地，所述有源天线单元还包括电源管理单元；Optionally, the active antenna unit further includes a power management unit;
所述电源管理单元，用于对所述供电单元进行控制。The power management unit is used to control the power supply unit.
可选地，所述有源天线单元还包括第一监控同步单元，所述覆盖单元包括第二监控同步单元；Optionally, the active antenna unit further includes a first monitoring and synchronization unit, and the coverage unit includes a second monitoring and synchronization unit;
所述第一监控同步单元和所述第二监控同步单元，用于所述有源天线单元与所述覆盖单元的信号同步。The first monitoring and synchronizing unit and the second monitoring and synchronizing unit are used for synchronizing signals of the active antenna unit and the coverage unit.
可选地，所述第一监控同步单元，还用于对所述扩展单元和所述覆盖单元的工作状态进行监控。Optionally, the first monitoring and synchronization unit is further configured to monitor the working states of the extension unit and the coverage unit.
可选地，所述多个第一射频单元包括针对第一频段的射频信号的第一射频链路，和针对第二频段的射频信号的第二射频链路；Optionally, the plurality of first radio frequency units include a first radio frequency link for radio frequency signals in the first frequency band, and a second radio frequency link for radio frequency signals in the second frequency band;
所述第一射频链路包括第一上行射频链路和第一下行射频链路；The first radio frequency link includes a first uplink radio frequency link and a first downlink radio frequency link;
所述第一上行射频链路包括依次连接的：第一双工器、第一上行第一低噪声放大器、第一数控衰减器、第一增益模块、第一选频带通滤波器和第二双工器；所述第一下行射频链路包括依次连接的：第二双工器、第二数控衰减器、第二增益模块、第二选频带通滤波器、第一功率放大器和第一双工器；The first uplink radio frequency link includes sequentially connected: a first duplexer, a first uplink first low-noise amplifier, a first digitally controlled attenuator, a first gain module, a first frequency-selective bandpass filter and a second dual The first downlink radio frequency link includes sequentially connected: a second duplexer, a second digitally controlled attenuator, a second gain module, a second frequency-selective bandpass filter, a first power amplifier, and a first dual Tool;
所述第二射频链路包括第二上行射频链路和第二下行射频链路；The second radio frequency link includes a second uplink radio frequency link and a second downlink radio frequency link;
所述第二上行射频链路包括依次连接的：第一滤波器、第一射频开关、第二低噪声放大器、第三数控衰减器、第三增益模块、第三选频带通滤波器、第二射频开关和第二滤波器；所述第二下行射频链路包括依次连接的：第二滤波器、第二射频开关、第四数控衰减器、第四增益模块、第四选频带通滤波器、第二功率放大器、第一射频开关和第一滤波器。The second uplink radio frequency link includes sequentially connected: the first filter, the first radio frequency switch, the second low noise amplifier, the third digital control attenuator, the third gain module, the third frequency selection bandpass filter, the second A radio frequency switch and a second filter; the second downlink radio frequency link includes sequentially connected: a second filter, a second radio frequency switch, a fourth digitally controlled attenuator, a fourth gain module, a fourth frequency-selective bandpass filter, A second power amplifier, a first radio frequency switch and a first filter.
可选地，所述覆盖单元包括多个第二射频单元，多个第二射频单元包括针对第一频段的射频信号的第三射频链路，和针对第二频段的射频信号的第四射频链路；Optionally, the coverage unit includes a plurality of second radio frequency units, and the plurality of second radio frequency units include a third radio frequency chain for radio frequency signals in the first frequency band, and a fourth radio frequency chain for radio frequency signals in the second frequency band road;
所述第三射频链路包括第三上行射频链路和第三下行射频链路；The third radio frequency link includes a third uplink radio frequency link and a third downlink radio frequency link;
所述第三上行射频链路包括依次连接的：第三滤波器、第三射频开关、第五数控衰减器、第五增益模块、第五选频带通滤波器、第三功率放大器、第四射频开关和第四滤波器；所述第三下行射频链路包括依次连接的：第四滤波器、第四射频开关、第三低噪声放大器、第六数控衰减器、第六增益模块、第六选频带通滤波器、第三射频开关和第三滤波器；The third uplink radio frequency link includes sequentially connected: a third filter, a third radio frequency switch, a fifth digitally controlled attenuator, a fifth gain module, a fifth frequency-selective bandpass filter, a third power amplifier, and a fourth radio frequency switch and a fourth filter; the third downlink radio frequency link includes sequentially connected: the fourth filter, the fourth radio frequency switch, the third low noise amplifier, the sixth numerical control attenuator, the sixth gain module, the sixth selection a frequency bandpass filter, a third radio frequency switch and a third filter;
所述第四射频链路包括第四上行射频链路和第四下行射频链路；The fourth radio frequency link includes a fourth uplink radio frequency link and a fourth downlink radio frequency link;
所述第四上行射频链路包括依次连接的：第三双工器、第七数控衰减器、第七增益模块、第七选频带通滤波器、第四功率放大器和第四双工器；所述第四下行射频链路包括依次连接的：第四双工器、第四低噪声放大器、第八数控衰减器、第八增益模块、第八选频带通滤波器和第三双工器。The fourth uplink radio frequency link includes sequentially connected: a third duplexer, a seventh digitally controlled attenuator, a seventh gain module, a seventh frequency-selective bandpass filter, a fourth power amplifier, and a fourth duplexer; The fourth downlink radio frequency link includes sequentially connected: a fourth duplexer, a fourth low noise amplifier, an eighth digitally controlled attenuator, an eighth gain module, an eighth frequency-selective bandpass filter and a third duplexer.
可选地，所述扩展单元，包括光纤转换智能管理单元；Optionally, the extension unit includes an optical fiber conversion intelligent management unit;
所述光纤转换智能管理单元，用于对所述扩展单元所接收到的光信号进行光电转换，以及对所述扩展单元所接收到的光信号进行监测和调整The optical fiber conversion intelligent management unit is used to perform photoelectric conversion on the optical signal received by the extension unit, and to monitor and adjust the optical signal received by the extension unit
本发明实施例具有以下优点：Embodiments of the present invention have the following advantages:
本发明实施例的一种无线微分布系统，包括：有源天线单元、扩展单元和覆盖单元，有源天线单元与扩展单元连接，扩展单元与覆盖单元连接；有源天线单元包括宽频双极化有源天线和针对不同频段的多个第一射频单元；宽频双极化有源天线用于收发不同频段的射频信号，多个第一射频单元用于对不同频段的射频信号进行第一信号处理；扩展单元，用于对有源天线单元发送给覆盖单元的光信号进行转发；以及，用于对覆盖单元发送给有源天线单元的光信号进行转发；覆盖单元，用于收发不同频段的射频信号；以及，用于对不同片段的射频信号进行第二信号处理。通过本发明实施例，实现了由一个部署有宽频有源天线的无线微分布系统对不同频段的射频信号的收发和处理，使得无线微分布系统支持5G无线信号多频段同时覆盖，从而使得无线微分布系统集成度高；且通过宽频天线，可以减少无线微分布系统所占用的体积；从而，降低了工程施工的成本和难度。A wireless micro-distribution system according to an embodiment of the present invention includes: an active antenna unit, an extension unit and a coverage unit, the active antenna unit is connected to the extension unit, and the extension unit is connected to the coverage unit; the active antenna unit includes a broadband dual-polarization The active antenna and multiple first radio frequency units for different frequency bands; the broadband dual-polarized active antenna is used to send and receive radio frequency signals of different frequency bands, and the multiple first radio frequency units are used to perform first signal processing on the radio frequency signals of different frequency bands ; The extension unit is used to forward the optical signal sent by the active antenna unit to the coverage unit; and is used to forward the optical signal sent by the coverage unit to the active antenna unit; signal; and, used for performing second signal processing on radio frequency signals of different segments. Through the embodiment of the present invention, it is realized that a wireless micro-distribution system deployed with a broadband active antenna transmits, receives and processes radio frequency signals of different frequency bands, so that the wireless micro-distribution system supports simultaneous coverage of multiple frequency bands of 5G wireless signals, so that the wireless micro-distribution The distribution system has a high degree of integration; and through the broadband antenna, the volume occupied by the wireless micro-distribution system can be reduced; thus, the cost and difficulty of engineering construction are reduced.
且通过可选频的选频带通滤波器设计，可以满足实际组网频段选型的要求，进一步降低设备和施工成本。And through the frequency-selectable frequency-selection band-pass filter design, it can meet the requirements of the actual networking frequency band selection, and further reduce equipment and construction costs.
附图说明Description of drawings
为了更清楚地说明本发明的技术方案，下面将对本发明的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings that need to be used in the description of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings without paying creative labor.
图1是本发明实施例的一种无线微分布系统的结构框图；Fig. 1 is a structural block diagram of a kind of wireless micro-distribution system of the embodiment of the present invention;
图2是本发明实施例的一种无线微分布系统的结构示意图；2 is a schematic structural diagram of a wireless micro-distribution system according to an embodiment of the present invention;
图3是本发明实施例的一种有源天线单元的结构示意图；FIG. 3 is a schematic structural diagram of an active antenna unit according to an embodiment of the present invention;
图4a是本发明实施例的一种针对4G的第一射频单元的结构示意图；Fig. 4a is a schematic structural diagram of a first radio frequency unit for 4G according to an embodiment of the present invention;
图4b是本发明实施例的一种针对5G的第一射频单元的结构示意图；Fig. 4b is a schematic structural diagram of a first radio frequency unit for 5G according to an embodiment of the present invention;
图5是本发明实施例的一种扩展单元的结构示意图；FIG. 5 is a schematic structural diagram of an extension unit according to an embodiment of the present invention;
图6是本发明实施例的一种覆盖单元的结构示意图；Fig. 6 is a schematic structural diagram of a covering unit according to an embodiment of the present invention;
图7是本发明实施例的一种针对5G的第二射频单元和一种针对4G的第二射频单元的结构示意图。Fig. 7 is a schematic structural diagram of a second radio frequency unit for 5G and a second radio frequency unit for 4G according to an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
参照图1，示出了本发明实施例的一种无线微分布系统的结构框图；如图1所示的无线微分布系统，可以包括有源天线单元、扩展单元和覆盖单元，有源天线单元可以与扩展单元连接，扩展单元可以与覆盖单元连接。Referring to Fig. 1, it shows a structural block diagram of a kind of wireless micro-distribution system of the embodiment of the present invention; The wireless micro-distribution system as shown in Fig. 1 can comprise active antenna unit, extension unit and coverage unit, active antenna unit Can be connected with extension unit, which can be connected with cover unit.
其中，有源天线单元可以与基站通过有线或无线的方式进行交互；覆盖单元可以与用户终端通过有线或无线的方式进行交互。Wherein, the active antenna unit may interact with the base station in a wired or wireless manner; the coverage unit may interact with the user terminal in a wired or wireless manner.
扩展单元可以用于将有源天线单元从基站接收到的信号转发给覆盖单元，以及用于将覆盖单元从用户终端接收到的信号转发给有源天线单元。The extension unit may be used to forward signals received by the active antenna unit from the base station to the coverage unit, and for forwarding signals received by the coverage unit from the user terminal to the active antenna unit.
在本发明一实施例中，有源天线单元可以包括宽频双极化有源天线和针对不同频段的多个第一射频单元；宽频双极化有源天线用于收发不同频段的射频信号，多个第一射频单元用于对不同频段的射频信号进行第一信号处理。In an embodiment of the present invention, the active antenna unit may include a broadband dual-polarized active antenna and a plurality of first radio frequency units for different frequency bands; the broadband dual-polarized active antenna is used to send and receive radio frequency signals in different frequency bands, and multiple A first radio frequency unit is used to perform first signal processing on radio frequency signals of different frequency bands.
具体的，宽频双极化有源天线可以设置为接收不同频段的射频信号；例如：宽频双极化有源天线可以包括有针对不同频段的射频信号的宽频天线。Specifically, the broadband dual-polarization active antenna may be configured to receive radio frequency signals of different frequency bands; for example, the broadband dual-polarization active antenna may include a broadband antenna for radio frequency signals of different frequency bands.
作为一示例，宽频双极化有源天线可以包括有针对1800-2100MHz的第一宽频天线和针对3500MHz的第二宽频天线，以分别收发4G模式下的射频信号和5G模式下的射频信号。As an example, the broadband dual-polarized active antenna may include a first broadband antenna for 1800-2100 MHz and a second broadband antenna for 3500 MHz, to respectively send and receive radio frequency signals in 4G mode and radio frequency signals in 5G mode.
针对不同频段的宽频天线可以与对应的第一射频单元连接，以便第一射频单元可以对对应频段的射频信号进行第一信号处理；其中第一信号处理可以包括放大、增益调整、带外抑制等，本发明实施例对此不作限制。Broadband antennas for different frequency bands can be connected to the corresponding first radio frequency unit, so that the first radio frequency unit can perform first signal processing on the radio frequency signal of the corresponding frequency band; wherein the first signal processing can include amplification, gain adjustment, out-of-band suppression, etc. , which is not limited in this embodiment of the present invention.
在本发明一实施例中，有源天线单元还包括射频板卡，射频板卡与宽频双极化有源天线和馈线连接，馈线的另一端与基站连接，多个第一射频单元分别与射频板卡连接；射频板卡以有线耦合馈入的方式收发不同频段的射频信号；以及，以无线馈入的方式收发不同频段的射频信号。In an embodiment of the present invention, the active antenna unit further includes a radio frequency board, and the radio frequency board is connected to the broadband dual-polarized active antenna and the feeder, the other end of the feeder is connected to the base station, and the plurality of first radio frequency units are respectively connected to the radio frequency The board is connected; the radio frequency board sends and receives radio frequency signals of different frequency bands in the way of wired coupling and feed-in; and transmits and receives radio frequency signals of different frequency bands in the way of wireless feed-in.
具体的，可以在有源天线单元中部署射频板卡，例如：射频可热插拨的板卡；射频板卡可以与宽频双极化有源天线和一馈线连接，馈线的另一端可以与基站连接，以便通过射频板卡实现有源天线单元的有线耦合馈入和无线耦合馈入。Specifically, a radio frequency board can be deployed in the active antenna unit, for example: a radio frequency hot-swappable board; the radio frequency board can be connected with a broadband dual-polarized active antenna and a feeder, and the other end of the feeder can be connected to the base station Connection, in order to realize the wired coupling feed and wireless coupling feed of the active antenna unit through the radio frequency board.
例如：基站可以通过馈线向有源天线单元发送不同频段的射频信号，射频板卡可以以有线耦合馈入的方式接收基站所发送的不同频段的射频信号；以及，射频板卡可以将有源天线单元所接收到的用户终端发送来的不同频段的射频信号，通过馈线发送给基站。For example: the base station can send radio frequency signals of different frequency bands to the active antenna unit through the feeder, and the radio frequency board can receive the radio frequency signals of different frequency bands sent by the base station in the form of wired coupling and feeding; and the radio frequency board can connect the active antenna unit The radio frequency signals of different frequency bands received by the unit from the user terminal are sent to the base station through the feeder.
或者，基站可以向有源天线单元中的宽频双极化有源天线发送不同频段的射频信号，射频板卡可以以无线耦合馈入的方式接收基站所发送的不同频段的射频信号；以及，射频板卡可以将有源天线单元所接收到的用户终端发送来的不同频段的射频信号，通过宽频双极化有源天线发送给基站，本发明实施例对此不做限制。Alternatively, the base station can send radio frequency signals of different frequency bands to the broadband dual-polarized active antenna in the active antenna unit, and the radio frequency board can receive radio frequency signals of different frequency bands sent by the base station in a wireless coupling and feeding manner; and, the radio frequency The board can transmit radio frequency signals of different frequency bands received by the active antenna unit from the user terminal to the base station through the broadband dual-polarization active antenna, which is not limited in the embodiment of the present invention.
在本发明一实施例中，多个第一射频单元可以用于射频信号的收发、增益调整、带外抑制等；多个第一射频单元可以包括针对第一频段的射频信号的第一射频链路，和针对第二频段的射频信号的第二射频链路；其中，第一频段可以指4G模式下的频段，例如：1800-2100MHz，第二频段可以指5G模式下的频段，例如：3500MHz，本发明实施例对此不作限制。In an embodiment of the present invention, multiple first radio frequency units may be used for transmitting and receiving radio frequency signals, gain adjustment, out-of-band suppression, etc.; multiple first radio frequency units may include a first radio frequency chain for radio frequency signals in the first frequency band and a second radio frequency link for radio frequency signals in the second frequency band; where the first frequency band can refer to the frequency band in 4G mode, for example: 1800-2100MHz, and the second frequency band can refer to the frequency band in 5G mode, for example: 3500MHz , which is not limited in this embodiment of the present invention.
作为一示例，第一射频链路可以包括第一上行射频链路和第一下行射频链路；第一上行射频链路包括依次连接的：第一双工器、第一低噪声放大器、第一数控衰减器、第一增益模块、第一选频带通滤波器和第二双工器；第一下行射频链路包括依次连接的：第二双工器、第二数控衰减器、第二增益模块、第二选频带通滤波器、第一功率放大器和第一双工器。As an example, the first radio frequency link may include a first uplink radio frequency link and a first downlink radio frequency link; the first uplink radio frequency link includes sequentially connected: a first duplexer, a first low noise amplifier, a first A numerically controlled attenuator, a first gain module, a first frequency-selective bandpass filter and a second duplexer; the first downlink radio frequency link includes sequentially connected: the second duplexer, the second numerically controlled attenuator, the second A gain module, a second frequency-selective bandpass filter, a first power amplifier and a first duplexer.
其中，第一双工器可以与第一宽频天线连接，以对第一宽频天线所接收到的4G模式下的频段对应的射频信号进行提取和分离；第二双工器可以与有源天线单元中的光纤转换单元连接，以将处理后的信号进行光电转换并传输给扩展单元；第一、二双工器可以是高隔离度双工器，用于对FDD(Frequency Division Duplexing，频分双工)信号的上下行信号提取和分离，同时提供高隔离和抑制度，防止链路自激。Wherein, the first duplexer can be connected with the first broadband antenna, so as to extract and separate the radio frequency signal corresponding to the frequency band under the 4G mode received by the first broadband antenna; the second duplexer can be connected with the active antenna unit The optical fiber conversion unit in the connection is used to perform photoelectric conversion on the processed signal and transmit it to the expansion unit; the first and second duplexers can be high-isolation duplexers for FDD (Frequency Division Duplexing, Frequency Division Duplexing The uplink and downlink signal extraction and separation of industrial) signals, while providing high isolation and suppression to prevent link self-excitation.
第一低噪声放大器可以用于对从基站发送给用户终端的4G模式下的频段对应的射频信号进行处理，以保证接收链路的增益和噪声系数良好。The first low noise amplifier can be used to process the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal, so as to ensure that the gain and noise figure of the receiving link are good.
第一数控衰减器可以用于对从基站发送给用户终端的4G模式下的频段对应的射频信号进行处理，实现下行链路增益自动调整。The first digitally controlled attenuator can be used to process the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal, so as to realize the automatic adjustment of the downlink gain.
第一增益模块可以用于小信号的放大，以满足接收链路需要的增益范围。The first gain module can be used for amplifying small signals to meet the gain range required by the receiving link.
第一选频带通滤波器可以用于根据馈入的信号(例如：从基站发送给用户终端的4G模式下的频段对应的射频信号)，来进行频段选择，提高信号的信噪比和带外抑制性能。The first frequency-selection band-pass filter can be used to select the frequency band according to the fed-in signal (for example: the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal), and improve the signal-to-noise ratio and out-of-band inhibit performance.
另外，第一功率放大器可以用于对信号的功率进行放大，第一功率放大器的输出功率等级可以从30dm-43dBm，本发明实施例对此不作限制。In addition, the first power amplifier may be used to amplify the power of the signal, and the output power level of the first power amplifier may be from 30dm-43dBm, which is not limited in this embodiment of the present invention.
其他组成第一下行链路的第二双工器、第二数控衰减器、第二增益模块、第二选频带通滤波器和第一双工器与上述组成第一上行射频链路的结构的作用类似，在此不再赘述。The second duplexer, the second numerically controlled attenuator, the second gain module, the second frequency-selective bandpass filter and the first duplexer that make up the first downlink and the above-mentioned structure that make up the first uplink radio frequency link The functions are similar and will not be repeated here.
第一下行链路可以用于处理从用户终端发送给基站的4G模式下的频段对应的射频信号。The first downlink may be used to process a radio frequency signal corresponding to a frequency band in 4G mode sent from the user terminal to the base station.
作为另一示例，第二射频链路可以包括第二上行射频链路和第二下行射频链路；第二上行射频链路包括依次连接的：第一滤波器、第一射频开关、第二低噪声放大器、第三数控衰减器、第三增益模块、第三选频带通滤波器、第二射频开关和第二滤波器；第二下行射频链路包括依次连接的：第二滤波器、第二射频开关、第四数控衰减器、第四增益模块、第四选频带通滤波器、第二功率放大器、第一射频开关和第一滤波器。As another example, the second radio frequency link may include a second uplink radio frequency link and a second downlink radio frequency link; the second uplink radio frequency link includes sequentially connected: a first filter, a first radio frequency switch, a second low A noise amplifier, a third numerically controlled attenuator, a third gain module, a third frequency-selective bandpass filter, a second radio frequency switch and a second filter; the second downlink radio frequency link includes sequentially connected: the second filter, the second A radio frequency switch, a fourth numerically controlled attenuator, a fourth gain module, a fourth frequency-selective bandpass filter, a second power amplifier, a first radio frequency switch and a first filter.
其中，第一滤波器可以与第二宽频天线连接，以对第二宽频天线所接收到的5G模式下的频段对应的射频信号进行滤波处理；第二滤波器可以与有源天线单元中的光纤转换单元连接，以将处理后的信号进行光电转换并传输给扩展单元。Wherein, the first filter can be connected with the second broadband antenna, so as to filter the radio frequency signal corresponding to the frequency band under the 5G mode received by the second broadband antenna; the second filter can be connected with the optical fiber in the active antenna unit The conversion unit is connected to perform photoelectric conversion on the processed signal and transmit it to the expansion unit.
第一射频开关可以用于控制微波信号通道转换。The first radio frequency switch can be used to control microwave signal channel switching.
第二低噪声放大器可以用于对从基站发送给用户终端的5G模式下的频段对应的射频信号进行处理，以保证接收链路的增益和噪声系数良好。The second low noise amplifier can be used to process the radio frequency signal corresponding to the frequency band in the 5G mode sent from the base station to the user terminal, so as to ensure that the gain and noise figure of the receiving link are good.
第三数控衰减器可以用于对从基站发送给用户终端的5G模式下的频段对应的射频信号进行处理，实现下行链路增益自动调整。The third digitally controlled attenuator can be used to process the radio frequency signal corresponding to the frequency band in the 5G mode sent from the base station to the user terminal, so as to realize the automatic adjustment of the downlink gain.
第三增益模块可以用于小信号的放大，以满足接收链路需要的增益范围。The third gain module can be used for amplifying small signals to meet the gain range required by the receiving link.
第三选频带通滤波器可以用于根据馈入的信号(例如：从基站发送给用户终端的5G模式下的频段对应的射频信号)，来进行频段选择，提高信号的信噪比和带外抑制性能。The third frequency-selective band-pass filter can be used to select the frequency band according to the fed-in signal (for example: the radio frequency signal corresponding to the frequency band in the 5G mode sent from the base station to the user terminal), to improve the signal-to-noise ratio and out-of-band inhibit performance.
另外，第二功率放大器可以用于对信号的功率进行放大；而其他组成第二下行链路的第二滤波器、第二射频开关、第四数控衰减器、第四增益模块、第四选频带通滤波器、第一射频开关和第一滤波器与上述组成第二上行射频链路的结构的作用类似，在此不再赘述。In addition, the second power amplifier can be used to amplify the power of the signal; and the second filter, the second radio frequency switch, the fourth digitally controlled attenuator, the fourth gain module, and the fourth frequency selection band that make up the second downlink Functions of the pass filter, the first radio frequency switch, and the first filter are similar to those of the structure forming the second uplink radio frequency link, and will not be repeated here.
第二下行链路可以用于处理从用户终端发送给基站的5G模式下的频段对应的射频信号。The second downlink may be used to process the radio frequency signal corresponding to the frequency band in the 5G mode sent from the user terminal to the base station.
第一射频单元在处理完信号后，可以通过有源天线单元中的光纤转换单元对处理得到的信号进行光电转换，并发送至扩展单元。After the first radio frequency unit processes the signal, it can perform photoelectric conversion on the processed signal through the optical fiber conversion unit in the active antenna unit, and send it to the extension unit.
在本发明一实施例中，扩展单元，可以用于对有源天线单元发送给覆盖单元的光信号进行转发；以及，用于对覆盖单元发送给有源天线单元的光信号进行转发。In an embodiment of the present invention, the extension unit may be used for forwarding the optical signal sent by the active antenna unit to the covering unit; and for forwarding the optical signal sent by the covering unit to the active antenna unit.
具体的，扩展单元可以包括光路分发单元和供电单元；光路分发单元用于对有源天线单元发送给覆盖单元的光信号进行分发；以及，用于对覆盖单元发送给有源天线单元的光信号进行转发；供电单元用于向有源天线单元和覆盖单元进行供电。Specifically, the extension unit may include an optical path distribution unit and a power supply unit; the optical path distribution unit is used to distribute the optical signal sent by the active antenna unit to the coverage unit; and is used to distribute the optical signal sent by the coverage unit to the active antenna unit For forwarding; the power supply unit is used to supply power to the active antenna unit and the coverage unit.
其中，光路分发单元可以作为光路分发的结构；具体的，光路分发单元可以用于对有源天线单元发送给覆盖单元的光信号进行分发，以及用于对覆盖单元发送给有源天线单元的光信号进行转发。Wherein, the optical path distribution unit can be used as an optical path distribution structure; specifically, the optical path distribution unit can be used to distribute the optical signal sent by the active antenna unit to the coverage unit, and to distribute the optical signal sent by the coverage unit to the active antenna unit. The signal is forwarded.
供电单元中可以包括有电源，供电单元中的电源可以分别向有源天线单元和扩展单元供电；，通过由扩展单元中的供电单元向有源天线单元和覆盖单元的供电，可以方便工程施工以及覆盖组网。The power supply unit can include a power supply, and the power supply in the power supply unit can supply power to the active antenna unit and the extension unit respectively; through the power supply from the power supply unit in the extension unit to the active antenna unit and the coverage unit, it is convenient for engineering construction and Overlay networking.
作为一示例，扩展单元还可以包括光纤转换智能管理单元；光纤转换智能管理单元，用于对扩展单元所接收到的光信号进行光电转换，以及对扩展单元所接收到的光信号进行监测和调整As an example, the extension unit may also include an optical fiber conversion intelligent management unit; the optical fiber conversion intelligent management unit is used to perform photoelectric conversion on the optical signal received by the extension unit, and to monitor and adjust the optical signal received by the extension unit
其中，光纤转换和智能管理单元可以对扩展单元所接收到的光信号进行光电转换，以及实时监测和调整扩展单元所接收到的光信号的幅度，本发明实施例对此不作限制。The optical fiber conversion and intelligent management unit can perform photoelectric conversion on the optical signal received by the extension unit, and monitor and adjust the amplitude of the optical signal received by the extension unit in real time, which is not limited in the embodiment of the present invention.
作为另一实施例，有源天线单元还包括电源管理单元；电源管理单元，用于对供电单元进行控制。As another embodiment, the active antenna unit further includes a power management unit; the power management unit is configured to control the power supply unit.
具体的，有源天线单元中的电源管理单元可以从扩展单元的供电单元获取供电单元分别向有源天线单元和覆盖单元所提供的电的参数，以及对供电单元分别向有源天线单元和覆盖单元所提供的电进行控制和调整，例如：调整供电单元分别向有源天线单元和覆盖单元所提供的电的电压，本发明实施例对此不作限制。Specifically, the power management unit in the active antenna unit can obtain the parameters of the electricity provided by the power supply unit to the active antenna unit and the coverage unit respectively from the power supply unit of the extension unit, and provide the power supply unit to the active antenna unit and the coverage unit respectively. The power provided by the unit is controlled and adjusted, for example, the voltage of the power provided by the power supply unit to the active antenna unit and the coverage unit is adjusted, which is not limited in this embodiment of the present invention.
在本发明一实施例中，覆盖单元可以用于收发不同频段的射频信号；以及，用于对不同片段的射频信号进行第二信号处理；其中，第二信号处理可以包括放大、增益调整、带外抑制等，本发明实施例对此不作限制。In an embodiment of the present invention, the covering unit can be used to send and receive radio frequency signals in different frequency bands; and, to perform second signal processing on radio frequency signals of different segments; External inhibition, etc., are not limited in this embodiment of the present invention.
具体的，覆盖单元可以包括多个第二射频单元，多个第二射频单元可以用于射频信号的收发、增益调整、带外抑制等。Specifically, the coverage unit may include multiple second radio frequency units, and the multiple second radio frequency units may be used for transmitting and receiving radio frequency signals, gain adjustment, out-of-band suppression, and the like.
多个第二射频单元可以包括针对第一频段的射频信号的第三射频链路，和针对第二频段的射频信号的第四射频链路。The plurality of second radio frequency units may include a third radio frequency link for radio frequency signals of the first frequency band, and a fourth radio frequency link for radio frequency signals of the second frequency band.
作为一示例，第三射频链路包括第三上行射频链路和第三下行射频链路；第三上行射频链路包括依次连接的：第三滤波器、第三射频开关、第五数控衰减器、第五增益模块、第五选频带通滤波器、第三功率放大器、第四射频开关和第四滤波器；第三下行射频链路包括依次连接的：第四滤波器、第四射频开关、第三低噪声放大器、第六数控衰减器、第六增益模块、第六选频带通滤波器、第三射频开关和第三滤波器。As an example, the third radio frequency link includes a third uplink radio frequency link and a third downlink radio frequency link; the third uplink radio frequency link includes sequentially connected: a third filter, a third radio frequency switch, and a fifth numerically controlled attenuator , the fifth gain module, the fifth frequency-selective bandpass filter, the third power amplifier, the fourth radio frequency switch and the fourth filter; the third downlink radio frequency link includes sequentially connected: the fourth filter, the fourth radio frequency switch, The third low noise amplifier, the sixth digital control attenuator, the sixth gain module, the sixth frequency selection bandpass filter, the third radio frequency switch and the third filter.
其中，第三滤波器可以与覆盖单元的一光纤转换单元连接，以通过光纤转换单元接收从扩展单元发送来的光信号。Wherein, the third filter can be connected with an optical fiber conversion unit of the covering unit, so as to receive the optical signal sent from the extension unit through the optical fiber conversion unit.
第三、四射频开关可以用于控制微波信号通道转换。The third and fourth radio frequency switches can be used to control microwave signal channel conversion.
第五数控衰减器可以用于对从基站发送给用户终端的5G模式下的频段对应的射频信号进行处理，实现下行链路增益自动调整。The fifth digitally controlled attenuator can be used to process the radio frequency signal corresponding to the frequency band in the 5G mode sent from the base station to the user terminal, so as to realize the automatic adjustment of the downlink gain.
第五增益模块可以用于小信号的放大，以满足接收链路需要的增益范围。The fifth gain module can be used for amplifying small signals to meet the gain range required by the receiving link.
第五选频带通滤波器可以用于根据馈入的信号(例如：从基站发送给用户终端的5G模式下的频段对应的射频信号)，来进行频段选择，提高信号的信噪比和带外抑制性能。The fifth frequency-selective band-pass filter can be used to select the frequency band according to the fed-in signal (for example: the radio frequency signal corresponding to the frequency band in the 5G mode sent from the base station to the user terminal), and improve the signal-to-noise ratio and out-of-band inhibit performance.
第三功率放大器可以用于对信号的功率进行放大。The third power amplifier can be used to amplify the power of the signal.
另外，组成第三射频下行链路的第四滤波器、第四射频开关、第三低噪声放大器、第六数控衰减器、第六增益模块、第六选频带通滤波器、第三射频开关和第三滤波器与上述组成第三上行射频链路的结构的作用类似，在此不再赘述。In addition, the fourth filter, the fourth radio frequency switch, the third low noise amplifier, the sixth digital control attenuator, the sixth gain module, the sixth frequency selection bandpass filter, the third radio frequency switch and The function of the third filter is similar to that of the above-mentioned structure forming the third uplink radio frequency link, which will not be repeated here.
作为另一示例，第四射频链路可以包括第四上行射频链路和第四下行射频链路；第四上行射频链路包括依次连接的：第三双工器、第七数控衰减器、第七增益模块、第七选频带通滤波器、第四功率放大器和第四双工器；第四下行射频链路包括依次连接的：第四双工器、第四低噪声放大器、第八数控衰减器、第八增益模块、第八选频带通滤波器和第三双工器。As another example, the fourth radio frequency link may include a fourth uplink radio frequency link and a fourth downlink radio frequency link; the fourth uplink radio frequency link includes sequentially connected: the third duplexer, the seventh digitally controlled attenuator, the fourth Seven gain modules, a seventh frequency-selective bandpass filter, a fourth power amplifier, and a fourth duplexer; the fourth downlink radio frequency link includes sequentially connected: the fourth duplexer, the fourth low-noise amplifier, and the eighth digitally controlled attenuator device, an eighth gain block, an eighth frequency-selective bandpass filter and a third duplexer.
其中，第三双工器可以与覆盖单元的一光纤转换单元连接，以通过光纤转换单元接收从扩展单元发送来的光信号。Wherein, the third duplexer may be connected to a fiber conversion unit of the coverage unit, so as to receive the optical signal sent from the extension unit through the fiber conversion unit.
第三、四双工器可以是高隔离度双工器，用于对FDD信号的上下行信号提取和分离，同时提供高隔离和抑制度，防止链路自激。The third and fourth duplexers may be high-isolation duplexers, which are used to extract and separate the uplink and downlink signals of the FDD signal, while providing high isolation and suppression to prevent link self-excitation.
第四低噪声放大器可以用于对从基站发送给用户终端的4G模式下的频段对应的射频信号进行处理，以保证接收链路的增益和噪声系数良好。The fourth low noise amplifier can be used to process the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal, so as to ensure that the gain and noise figure of the receiving link are good.
第七数控衰减器可以用于对从基站发送给用户终端的4G模式下的频段对应的射频信号进行处理，实现下行链路增益自动调整。The seventh numerically controlled attenuator can be used to process the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal, so as to realize the automatic adjustment of the downlink gain.
第七增益模块可以用于小信号的放大，以满足接收链路需要的增益范围。The seventh gain module can be used for amplifying small signals to meet the gain range required by the receiving link.
第七选频带通滤波器可以用于根据馈入的信号(例如：从基站发送给用户终端的4G模式下的频段对应的射频信号)，来进行频段选择，提高信号的信噪比和带外抑制性能。The seventh frequency-selective band-pass filter can be used to select the frequency band according to the fed-in signal (for example: the radio frequency signal corresponding to the frequency band in the 4G mode sent from the base station to the user terminal), and improve the signal-to-noise ratio and out-of-band inhibit performance.
第四功率放大器可以用于对信号的功率进行放大。The fourth power amplifier can be used to amplify the power of the signal.
另外，组成第四下行射频链路的第四双工器、第四低噪声放大器、第八数控衰减器、第八增益模块、第八选频带通滤波器和第三双工器与上述组成第四上行射频链路的结构的作用类似，在此不再赘述。In addition, the fourth duplexer, the fourth low-noise amplifier, the eighth digitally controlled attenuator, the eighth gain module, the eighth frequency-selective bandpass filter, and the third duplexer that form the fourth downlink radio frequency link are the same as the above-mentioned composition of the first The functions of the structure of the four uplink radio frequency links are similar, and will not be repeated here.
需要说明的是，覆盖单元中还可以包括射频合路单元，以实现多个频段合理输出；具体的，射频合路单元可以分别与不同的第二射频单元连接，以将不同的第二射频单元输出的不同频段的射频信号合路输出。It should be noted that the coverage unit may also include a radio frequency combination unit to achieve reasonable output of multiple frequency bands; specifically, the radio frequency combination unit may be connected to different second radio frequency units respectively, so as to combine different second radio frequency units The output RF signals of different frequency bands are combined and output.
当然，覆盖单元也可以分路输出，本发明实施例对此不作限制。Certainly, the overlay unit may also split the output, which is not limited in this embodiment of the present invention.
在本发明一实施例中，有源天线单元还包括第一监控同步单元，覆盖单元包括第二监控同步单元；第一监控同步单元和第二监控同步单元，用于有源天线单元与覆盖单元的信号同步。In an embodiment of the present invention, the active antenna unit further includes a first monitoring and synchronization unit, and the coverage unit includes a second monitoring and synchronization unit; the first monitoring and synchronization unit and the second monitoring and synchronization unit are used for the active antenna unit and the coverage unit signal synchronization.
其中，无线微分布系统可以通过有源天线单元中的第一监控同步单元和覆盖单元中的第二监控同步单元来对射频信号进行同步信号处理；当然，还可以对有源天线单元和覆盖单元进行系统时间同步处理，本发明实施例对此不作限制。Among them, the wireless micro-distribution system can carry out synchronous signal processing on the radio frequency signal through the first monitoring synchronization unit in the active antenna unit and the second monitoring synchronization unit in the coverage unit; of course, the active antenna unit and the coverage unit can also be Perform system time synchronization processing, which is not limited in this embodiment of the present invention.
作为一示例，第一监控同步单元还可以用于对扩展单元和覆盖单元的工作状态进行监控。As an example, the first monitoring and synchronization unit may also be used to monitor the working states of the extension unit and the coverage unit.
具体的，第一监控同步单元可以从扩展单元和覆盖单元获取对应的工作状态，并基于工作状态信息对扩展单元和覆盖单元是否出现异常进行检测。Specifically, the first monitoring and synchronization unit can obtain the corresponding working status from the extension unit and the coverage unit, and detect whether the extension unit and the coverage unit are abnormal based on the working status information.
作为另一示例，第一监控同步单元还可以基于有源天线单元的升级，对扩展单元和覆盖单元进行对应的升级，从而无需用户逐个对扩展单元和覆盖单元进行升级。As another example, the first monitoring and synchronization unit may also perform corresponding upgrades on the extension unit and the coverage unit based on the upgrade of the active antenna unit, so that the user does not need to upgrade the extension unit and the coverage unit one by one.
在本发明一实施例中，有源天线单元可以通过光纤与扩展单元，扩展单元可以通过光纤与覆盖单元连接，以减少链路的损耗，且覆盖效果更稳定。In an embodiment of the present invention, the active antenna unit may be connected to the extension unit through an optical fiber, and the extension unit may be connected to the coverage unit through an optical fiber, so as to reduce link loss and make the coverage effect more stable.
作为一示例，可以通过双纤传送一组信号的方式支持MIMO(Multiple-InMultiple Out，多进多出)2T2R。As an example, MIMO (Multiple-In Multiple Out, Multiple-In-Multiple-Out) 2T2R may be supported in a manner of transmitting a group of signals through dual fibers.
以下，针对本发明实施例中的无线微分布系统的结构和部分结构进行举例说明：In the following, the structure and partial structure of the wireless micro-distribution system in the embodiment of the present invention will be described with examples:
如图2，示出了本发明实施例的一种无线微分布系统的结构示意图；其中，无线微分布系统可以包括有源天线单元、扩展单元和覆盖单元。FIG. 2 shows a schematic structural diagram of a wireless micro-distribution system according to an embodiment of the present invention; wherein, the wireless micro-distribution system may include an active antenna unit, an extension unit and a coverage unit.
一台有源天线单元可以连接至少两台扩展单元，一台扩展单元可以连接至少两台覆盖单元。One active antenna unit can be connected with at least two expansion units, and one expansion unit can be connected with at least two coverage units.
如图3，示出了本发明实施例的一种有源天线单元的结构示意图；其中，有源天线单元可以包括：宽频双极化有源天线、第一射频单元1、第一射频单元2、第一监控同步单元、电源管理单元和第一光纤转换单元。Figure 3 shows a schematic structural diagram of an active antenna unit according to an embodiment of the present invention; wherein the active antenna unit may include: a broadband dual-polarized active antenna, a first radio frequency unit 1, and a first radio frequency unit 2 , a first monitoring synchronization unit, a power management unit and a first optical fiber conversion unit.
如图4a，示出了本发明实施例的一种针对4G的第一射频单元的结构示意图；其中，针对4G的第一射频单元分别与4G宽频天线和第一光纤转换单元连接；针对4G的第一射频单元可以包括第一上行射频链路和第一下行射频链路。Figure 4a shows a schematic structural view of a first radio frequency unit for 4G according to an embodiment of the present invention; wherein, the first radio frequency unit for 4G is respectively connected to a 4G broadband antenna and a first optical fiber conversion unit; for 4G The first radio frequency unit may include a first uplink radio frequency link and a first downlink radio frequency link.
第一上行射频链路可以包括依次连接的：第一双工器、第一低噪声放大器、第一数控衰减器、第一增益模块、第一选频带通滤波器和第二双工器。The first uplink radio frequency link may include sequentially connected: a first duplexer, a first low noise amplifier, a first digitally controlled attenuator, a first gain module, a first frequency-selective bandpass filter, and a second duplexer.
第一下行射频链路可以包括依次连接的：第二双工器、第二数控衰减器、第二增益模块、第二选频带通滤波器、第一功率放大器和第一双工器。The first downlink radio frequency link may include sequentially connected: a second duplexer, a second digitally controlled attenuator, a second gain module, a second frequency-selective bandpass filter, a first power amplifier, and a first duplexer.
如图4b，示出了本发明实施例的一种针对5G的第一射频单元的结构示意图；其中，针对5G的第一射频单元分别与5G宽频天线和第一光纤转换单元连接；针对5G的第一射频单元可以包括第二上行射频链路和第二下行射频链路。Figure 4b shows a schematic structural diagram of a first radio frequency unit for 5G according to an embodiment of the present invention; wherein, the first radio frequency unit for 5G is respectively connected to a 5G broadband antenna and a first optical fiber conversion unit; for 5G The first radio frequency unit may include a second uplink radio frequency link and a second downlink radio frequency link.
第二上行射频链路包括依次连接的：第一滤波器、第一射频开关、第二低噪声放大器、第三数控衰减器、第三增益模块、第三选频带通滤波器、第二射频开关和第二滤波器。The second uplink radio frequency link includes sequentially connected: a first filter, a first radio frequency switch, a second low noise amplifier, a third numerically controlled attenuator, a third gain module, a third frequency selective bandpass filter, and a second radio frequency switch and the second filter.
第二下行射频链路包括依次连接的：第二滤波器、第二射频开关、第四数控衰减器、第四增益模块、第四选频带通滤波器、第二功率放大器、第一射频开关和第一滤波器。The second downlink radio frequency link includes sequentially connected: the second filter, the second radio frequency switch, the fourth numerically controlled attenuator, the fourth gain module, the fourth frequency selection bandpass filter, the second power amplifier, the first radio frequency switch and first filter.
如图5，示出了本发明实施例的一种扩展单元的结构示意图；其中，扩展单元可以包括第一光纤转换智能单元、第二光纤转换智能单元、光路分发单元和供电单元。Fig. 5 shows a schematic structural diagram of an extension unit according to an embodiment of the present invention; wherein, the extension unit may include a first optical fiber conversion intelligent unit, a second optical fiber conversion intelligent unit, an optical path distribution unit, and a power supply unit.
如图6，示出了本发明实施例一种覆盖单元的结构示意图；其中，覆盖单元可以包括第二光纤转换单元、第二射频单元1、第二射频单元2、第二监控同步单元和射频合路单元。Figure 6 shows a schematic structural view of a coverage unit according to an embodiment of the present invention; wherein, the coverage unit may include a second optical fiber conversion unit, a second radio frequency unit 1, a second radio frequency unit 2, a second monitoring and synchronization unit, and a radio frequency combiner unit.
如图7，示出了本发明实施例的一种针对5G的第二射频单元和一种针对4G的第二射频单元的结构示意图。FIG. 7 shows a schematic structural diagram of a second radio frequency unit for 5G and a second radio frequency unit for 4G according to an embodiment of the present invention.
其中，针对5G的第二射频单元分别与第二光纤转换单元和射频合路单元连接；针对5G的第二射频单元可以包括第三上行射频链路和第三下行射频链路。Wherein, the second radio frequency unit for 5G is respectively connected with the second optical fiber conversion unit and the radio frequency combining unit; the second radio frequency unit for 5G may include a third uplink radio frequency link and a third downlink radio frequency link.
第三上行射频链路包括依次连接的：第三滤波器、第三射频开关、第五数控衰减器、第五增益模块、第五选频带通滤波器、第三功率放大器、第四射频开关和第四滤波器。The third uplink radio frequency link includes sequentially connected: the third filter, the third radio frequency switch, the fifth digitally controlled attenuator, the fifth gain module, the fifth frequency selection bandpass filter, the third power amplifier, the fourth radio frequency switch and Fourth filter.
第三下行射频链路包括依次连接的：第四滤波器、第四射频开关、第三低噪声放大器、第六数控衰减器、第六增益模块、第六选频带通滤波器、第三射频开关和第三滤波器。The third downlink radio frequency link includes sequentially connected: the fourth filter, the fourth radio frequency switch, the third low noise amplifier, the sixth numerically controlled attenuator, the sixth gain module, the sixth frequency selection bandpass filter, and the third radio frequency switch and a third filter.
针对4G的第二射频单元分别与第二光纤转换单元和射频合路单元连接；针对4G的第二射频单元可以包括第四上行射频链路和第四下行射频链路。The second radio frequency unit for 4G is respectively connected to the second optical fiber conversion unit and the radio frequency combining unit; the second radio frequency unit for 4G may include a fourth uplink radio frequency link and a fourth downlink radio frequency link.
第四上行射频链路包括依次连接的：第三双工器、第七数控衰减器、第七增益模块、第七选频带通滤波器、第四功率放大器和第四双工器。The fourth uplink radio frequency link includes sequentially connected: a third duplexer, a seventh digitally controlled attenuator, a seventh gain module, a seventh frequency-selective bandpass filter, a fourth power amplifier, and a fourth duplexer.
第四下行射频链路包括依次连接的：第四双工器、第四低噪声放大器、第八数控衰减器、第八增益模块、第八选频带通滤波器和第三双工器。The fourth downlink radio frequency link includes sequentially connected: a fourth duplexer, a fourth low noise amplifier, an eighth digitally controlled attenuator, an eighth gain module, an eighth frequency-selective bandpass filter and a third duplexer.
针对5G的第二射频单元中的第四滤波器，与针对4G的第二射频单元中的第四双工器分别与射频合路单元连接。The fourth filter in the second radio frequency unit for 5G and the fourth duplexer in the second radio frequency unit for 4G are respectively connected to the radio frequency combining unit.
本发明实施例的一种无线微分布系统，包括：有源天线单元、扩展单元和覆盖单元，有源天线单元与扩展单元连接，扩展单元与覆盖单元连接；有源天线单元包括宽频双极化有源天线和针对不同频段的多个第一射频单元；宽频双极化有源天线用于收发不同频段的射频信号，多个第一射频单元用于对不同频段的射频信号进行第一信号处理；扩展单元，用于对有源天线单元发送给覆盖单元的光信号进行转发；以及，用于对覆盖单元发送给有源天线单元的光信号进行转发；覆盖单元，用于收发不同频段的射频信号；以及，用于对不同片段的射频信号进行第二信号处理。通过本发明实施例，实现了将由一个部署有宽频有源天线的无线微分布系统对不同频段的射频信号的收发和处理，使得无线微分布系统支持5G无线信号多频段同时覆盖，从而使得无线微分布系统集成度高；且通过宽频天线，可以减少无线微分布系统所占用的体积；从而，降低了工程施工的成本和难度。A wireless micro-distribution system according to an embodiment of the present invention includes: an active antenna unit, an extension unit and a coverage unit, the active antenna unit is connected to the extension unit, and the extension unit is connected to the coverage unit; the active antenna unit includes a broadband dual-polarization The active antenna and multiple first radio frequency units for different frequency bands; the broadband dual-polarized active antenna is used to send and receive radio frequency signals of different frequency bands, and the multiple first radio frequency units are used to perform first signal processing on the radio frequency signals of different frequency bands ; The extension unit is used to forward the optical signal sent by the active antenna unit to the coverage unit; and is used to forward the optical signal sent by the coverage unit to the active antenna unit; signal; and, used for performing second signal processing on radio frequency signals of different segments. Through the embodiment of the present invention, it is realized that a wireless micro-distribution system deployed with a broadband active antenna can transmit, receive and process radio frequency signals of different frequency bands, so that the wireless micro-distribution system supports simultaneous coverage of multiple frequency bands of 5G wireless signals, so that the wireless micro-distribution The distribution system has a high degree of integration; and through the broadband antenna, the volume occupied by the wireless micro-distribution system can be reduced; thus, the cost and difficulty of engineering construction are reduced.
且通过可选频的选频带通滤波器设计，可以满足实际组网频段选型的要求，进一步降低设备和施工成本。And through the frequency-selectable frequency-selection band-pass filter design, it can meet the requirements of the actual networking frequency band selection, and further reduce equipment and construction costs.
最后，还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者终端设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者终端设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者终端设备中还存在另外的相同要素。Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.
以上对所提供的一种无线微分布系统，进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。A wireless micro-distribution system provided above has been introduced in detail. In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the core of the present invention. At the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as limiting the present invention.
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