CN217656751U - 5G radio frequency remote device and indoor distribution system - Google Patents
5G radio frequency remote device and indoor distribution systemDownload PDFInfo
- Publication number
- CN217656751U CN217656751UCN202220794888.0UCN202220794888UCN217656751UCN 217656751 UCN217656751 UCN 217656751UCN 202220794888 UCN202220794888 UCN 202220794888UCN 217656751 UCN217656751 UCN 217656751U
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- signal
- frequency
- remote
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本实用新型涉及移动通信技术领域，尤其涉及一种5G射频拉远装置以及室内分布系统。The utility model relates to the technical field of mobile communication, in particular to a 5G radio frequency remote device and an indoor distribution system.
背景技术Background technique
室内分布系统是针对室内用户群、用于改善建筑物内移动通信环境的一种成功的方案。是利用室内天线分布系统将移动基站的信号均匀分布在室内每个角落，从而使得室内区域拥有理想的信号覆盖强度。Indoor distribution system is a successful solution for indoor user groups to improve the mobile communication environment in buildings. It uses the indoor antenna distribution system to evenly distribute the signal of the mobile base station in every corner of the room, so that the indoor area has an ideal signal coverage strength.
目前，大部分室内普通场景，在2G(2th Generation Mobile CommunicationTechnology，第二代移动通信技术)网络、3G(3th Generation Mobile CommunicationTechnology，第三代移动通信技术) 网络以及4G(4th Generation Mobile CommunicationTechnology，第四代移动通信技术)网络的基础建设时，已经部署了数量巨大的室内分布系统(Distribute Antenna System，DAS)。一般通过2G、3G以及4G 等射频拉远装置(RemoteRadio Unit，RRU)作为信源进行信号接入，并经射频馈线连接至各室内分布天线，实现室内覆盖。At present, most common indoor scenarios are used in 2G (2th Generation Mobile Communication Technology) networks, 3G (3th Generation Mobile Communication Technology, third generation mobile communication technology) networks and 4G (4th Generation Mobile Communication Technology, fourth generation mobile communication technology) networks. A huge number of indoor distribution systems (Distribute Antenna System, DAS) have been deployed during the infrastructure construction of the modern mobile communication technology) network. Generally, a remote radio unit (Remote Radio Unit, RRU) such as 2G, 3G, and 4G is used as a signal source for signal access, and is connected to each indoor distributed antenna via a radio frequency feeder to achieve indoor coverage.
由于现网的室内分布系统支持传输的频段一般为500～2700MHz。而5G(5thGeneration Mobile Communication Technology，第五代移动通信技术)信号频段一般高于2700MHz。因此，在部署5G室内网络时，无法直接利用现网的室内分布系统。The frequency band supported by the indoor distribution system of the existing network is generally 500-2700MHz. The 5G (5th Generation Mobile Communication Technology, fifth-generation mobile communication technology) signal frequency band is generally higher than 2700MHz. Therefore, when deploying a 5G indoor network, the indoor distribution system of the existing network cannot be directly utilized.
实用新型内容Utility model content
本实用新型的目的在于提供一种5G射频拉远装置以及室内分布系统。旨在解决在部署5G室内网络时无法直接利用现网室内分布系统的问题。The purpose of the present invention is to provide a 5G radio frequency remote device and an indoor distribution system. It aims to solve the problem that the existing indoor distribution system cannot be directly utilized when deploying 5G indoor networks.
为达到上述目的，本实用新型采用如下技术方案：To achieve the above object, the utility model adopts the following technical solutions:
一方面，本实用新型实施例提供一种射频拉远模块，包括基带端口、中频模块、射频模块、第一混频器以及射频端口。其中，基带端口用于连接5G基带处理单元。中频模块与基带端口电连接，并传输 5G基带信号，中频模块用于5G基带信号与5G中频信号的转换。射频模块与中频模块电连接，射频模块用于5G中频信号与5G射频信号的转换。第一混频器用于与射频模块电连接，第一混频器用于5G射频信号与5G变频信号的转换。5G变频信号的频段与现网的室内分布系统支持传输的信号频段相同，且5G射频信号的频段大于5G变频信号的频段。而射频端口与第一混频器电连接，并传输5G变频信号。In one aspect, an embodiment of the present invention provides a remote radio frequency module, which includes a baseband port, an intermediate frequency module, a radio frequency module, a first mixer, and a radio frequency port. Among them, the baseband port is used to connect the 5G baseband processing unit. The intermediate frequency module is electrically connected to the baseband port, and transmits the 5G baseband signal, and the intermediate frequency module is used for the conversion of the 5G baseband signal and the 5G intermediate frequency signal. The radio frequency module is electrically connected to the intermediate frequency module, and the radio frequency module is used for the conversion of the 5G intermediate frequency signal and the 5G radio frequency signal. The first mixer is used for electrical connection with the radio frequency module, and the first mixer is used for the conversion of the 5G radio frequency signal and the 5G frequency conversion signal. The frequency band of the 5G frequency conversion signal is the same as the signal frequency band supported by the indoor distribution system of the existing network, and the frequency band of the 5G radio frequency signal is larger than that of the 5G frequency conversion signal. The radio frequency port is electrically connected to the first mixer and transmits 5G frequency conversion signals.
可选的，5G信号拉远装置还包括至少一个近端覆盖模块，近端覆盖模块包括第三功率分配器以及第三射频天线。第三功率分配器安装于射频模块与第一混频器之间，并分别与射频模块以及第一混频器电连接。第三功率分配器与射频模块之间通过5G射频信号进行信号传输，且第三功率分配器用于将第三功率分配器与射频模块之间的5G射频信号转换为多路5G射频信号。第三功率分配器与第一混频器之间通过其中一路5G射频信号进行信号传输。第三射频天线与第三功率分配器电连接，第三射频天线与第三功率分配器之间通过另一路5G射频信号进行信号传输，并通过第三射频天线进行5G信号覆盖。Optionally, the 5G signal remote device further includes at least one near-end covering module, and the near-end covering module includes a third power splitter and a third radio frequency antenna. The third power divider is installed between the radio frequency module and the first mixer, and is electrically connected to the radio frequency module and the first mixer, respectively. The third power divider and the radio frequency module perform signal transmission through 5G radio frequency signals, and the third power divider is used to convert the 5G radio frequency signals between the third power divider and the radio frequency module into multiple 5G radio frequency signals. Signal transmission is performed between the third power divider and the first mixer through one of the 5G radio frequency signals. The third radio frequency antenna is electrically connected to the third power divider, and another 5G radio frequency signal is used for signal transmission between the third radio frequency antenna and the third power divider, and the third radio frequency antenna is used for 5G signal coverage.
可选的，第三功率分配器为无源功分器或者无源耦合器。Optionally, the third power divider is a passive power divider or a passive coupler.
可选的，近端覆盖模块包括多个第三射频天线，每个第三射频天线通过一个第三功率分配器与射频模块电连接。Optionally, the near-end coverage module includes a plurality of third radio frequency antennas, and each third radio frequency antenna is electrically connected to the radio frequency module through a third power distributor.
可选的，第一混频器为多路混频器，用于多路5G射频信号与多路 5G变频信号的转换。Optionally, the first mixer is a multi-channel mixer, which is used for conversion of the multi-channel 5G radio frequency signal and the multi-channel 5G frequency conversion signal.
可选的，中频模块包括数字上变频器以及数字下变频器。数字上变频器与基带端口电连接，用于接受5G基带信号并输出5G中频信号。数字下变频器与基带端口电连接，用于接受5G中频信号并输出5G基带信号。Optionally, the intermediate frequency module includes a digital up-converter and a digital down-converter. The digital upconverter is electrically connected to the baseband port for receiving 5G baseband signals and outputting 5G intermediate frequency signals. The digital downconverter is electrically connected to the baseband port for receiving 5G intermediate frequency signals and outputting 5G baseband signals.
可选的，射频模块包括数字模拟转换器、模拟数字转换器、第二混频器、第三混频器、功率放大器、低讯杂放大器以及双工器。数字上变频器与双工器之间依次电连接数字模拟转换器、第二混频器以及功率放大器。数字下变频器与双工器之间依次电连接模拟数字转换器、第三混频器以及低讯杂放大器。双工器还用于与第一混频器电连接，并传输5G射频信号。Optionally, the radio frequency module includes a digital-to-analog converter, an analog-to-digital converter, a second mixer, a third mixer, a power amplifier, a low noise amplifier, and a duplexer. A digital-to-analog converter, a second mixer and a power amplifier are electrically connected between the digital up-converter and the duplexer in sequence. The analog-to-digital converter, the third mixer and the low noise amplifier are electrically connected between the digital down-converter and the duplexer in sequence. The duplexer is also used to electrically connect with the first mixer and transmit 5G radio frequency signals.
可选的，中频模块还包括安装于数字上变频器与模拟数字转换器之间的数字滤波器与数字预失真器。数字滤波器分别与数字上变频器以及数字预失真器电连接，数字预失真器还与模拟数字转换器电连接。Optionally, the intermediate frequency module further includes a digital filter and a digital predistorter installed between the digital up-converter and the analog-to-digital converter. The digital filter is respectively electrically connected with the digital up-converter and the digital predistorter, and the digital predistorter is also electrically connected with the analog-to-digital converter.
可选的，射频模块还包括第一带通滤波器以及第二带通滤波器。第一带通滤波器安装于第二混频器与功率放大器之间，并分别与第二混频器与功率放大器电连接。第二带通滤波器安装于低讯杂放大器与双工器之间，并分别与低讯杂放大器与双工器电连接。Optionally, the radio frequency module further includes a first bandpass filter and a second bandpass filter. The first bandpass filter is installed between the second mixer and the power amplifier, and is electrically connected to the second mixer and the power amplifier, respectively. The second bandpass filter is installed between the low noise amplifier and the duplexer, and is electrically connected to the low noise amplifier and the duplexer, respectively.
另一方面，本实用新型实施例还提供了一种室内分布系统，包括上衣方面中的5G射频拉远装置、接入端多频合路器、无源室分网络、输出端多频合路器以及远端覆盖模块。接入端多频合路器与射频端口电连接，并传输5G变频信号，接入端多频合路器用于5G变频信号与合路信号的转换。输出端多频合路器通过无源室分网络与接入端多频合路器电连接，输出端多频合路器与接入端多频合路器之间通过合路信号进行信号传输，输出端多频合路器用于合路信号与5G射频信号的转换。远端覆盖模块包括至少一个远端机以及至少一个第二射频天线，远端机用于与输出端多频合路器电连接，并传输5G变频信号，且远端机还用于5G变频信号与5G射频信号的转换。每个第二射频天线与一个远端机电连接并传输5G射频信号，且通过第二射频天线进行5G信号覆盖。On the other hand, the embodiment of the present invention also provides an indoor distribution system, including a 5G radio frequency remote device in the jacket aspect, a multi-frequency combiner at the access end, a passive indoor sub-network, and a multi-frequency combiner at the output end. device and remote coverage module. The multi-frequency combiner at the access end is electrically connected to the radio frequency port, and transmits the 5G frequency conversion signal, and the multi-frequency combiner at the access end is used for the conversion of the 5G frequency conversion signal and the combined signal. The multi-frequency combiner at the output end is electrically connected to the multi-frequency combiner at the access end through the passive room sub-network, and the multi-frequency combiner at the output end and the multi-frequency combiner at the access end perform signal transmission through a combined signal , the output multi-frequency combiner is used to convert the combined signal and the 5G radio frequency signal. The remote coverage module includes at least one remote unit and at least one second radio frequency antenna. The remote unit is used for electrical connection with the output multi-frequency combiner and transmits 5G frequency conversion signals, and the remote unit is also used for 5G frequency conversion signals Conversion with 5G RF signals. Each second radio frequency antenna is electromechanically connected to a remote end and transmits 5G radio frequency signals, and 5G signal coverage is performed through the second radio frequency antenna.
可选的，远端机与第二射频天线的数量为多个。远端覆盖模块还包括第二功率分配器，且每个远端机通过第二功率分配器与输出端多频合路器电连接。Optionally, the number of the remote unit and the second radio frequency antenna is multiple. The remote coverage module further includes a second power divider, and each remote unit is electrically connected to the output end multi-frequency combiner through the second power divider.
可选的，室内分布系统还包括供电模块，用于分别向每个远端机供电。Optionally, the indoor distribution system further includes a power supply module for supplying power to each remote unit respectively.
本实用新型实施例提供的5G射频拉远装置在应用于室内分布系统时，由于5G射频拉远装置可以通过基带端口接收5G基带处理单元的5G基带信号，并依次经中频模块、射频模块、第一混频器以及射频端口直接传输频段为500～2700MHz的5G变频信号。如此，5G射频拉远装置可以通过直接利用室内分布系统传输5G变频信号，从而实现 5G信号的覆盖。相较于现有技术，无需额外设置近连接电源的近端机设备，可以减少室内分布系统中5G信号覆盖时使用设备的数量，有利于降低建网成本，并降低整个系统设备的运行功耗，更加节能。When the 5G remote radio frequency device provided by the embodiment of the present invention is applied to an indoor distribution system, because the 5G remote radio frequency device can receive the 5G baseband signal of the 5G baseband processing unit through the baseband port, and sequentially pass through the intermediate frequency module, the radio frequency module, the first radio frequency A mixer and a radio frequency port directly transmit 5G frequency conversion signals with a frequency band of 500-2700MHz. In this way, the 5G radio remote device can transmit the 5G frequency conversion signal directly by using the indoor distribution system, so as to realize the coverage of the 5G signal. Compared with the existing technology, there is no need to set up additional near-end equipment near the power supply, which can reduce the number of equipment used when the 5G signal is covered in the indoor distribution system, which is conducive to reducing network construction costs and reducing the operating power consumption of the entire system equipment. , more energy efficient.
附图说明Description of drawings
为了更清楚地说明本实用新型实施例的技术方案，下面将对实施例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实用新型的一些实施例，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 solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.
图1为相关技术提供的一种室内分布系统的结构示意图；1 is a schematic structural diagram of an indoor distribution system provided by the related art;
图2为本实用新型实施例提供的一种室内分布系统的结构示意图；2 is a schematic structural diagram of an indoor distribution system provided by an embodiment of the present invention;
图3为图2中所示的5G射频拉远装置的结构示意图；FIG. 3 is a schematic structural diagram of the 5G radio frequency remote device shown in FIG. 2;
图4为图3中所示的射频模块与第一混频器之间安装有近端覆盖模块的结构示意图；4 is a schematic structural diagram of a near-end covering module installed between the radio frequency module shown in FIG. 3 and the first mixer;
图5为图3中所示的中频模块与射频模块的结构示意图；5 is a schematic structural diagram of the intermediate frequency module and the radio frequency module shown in FIG. 3;
图6为图5中所示的中频模块与射频模块的下行结构示意图；6 is a schematic diagram of the downlink structure of the intermediate frequency module and the radio frequency module shown in FIG. 5;
图7位图5中所示的中频模块与射频模块的上行结构示意图。FIG. 7 is a schematic diagram of the uplink structure of the intermediate frequency module and the radio frequency module shown in FIG. 5 .
附图标记：Reference number:
01-第一射频拉远装置；02-第二射频拉远装置；03-近端机；04-第一合路器；05-无源室分系统；06-第二合路器；07-功分耦合器；08-天线；09-远端机；010-供电单元；01-First remote radio device; 02-Second radio remote device; 03-Near-end machine; 04-First combiner; 05-Passive room sub-system; 06-Second combiner; 07- Power split coupler; 08-antenna; 09-remote unit; 010-power supply unit;
1-第一射频拉远装置；1- the first radio frequency remote device;
2-5G射频拉远装置；21-基带端口；2-5G radio remote device; 21-baseband port;
22-中频模块；221-数字上变频器；222-数字下变频器；223-数字滤波器；224-数字预失真器；22-IF module; 221-Digital upconverter; 222-Digital downconverter; 223-Digital filter; 224-Digital predistorter;
23-射频模块；231-数字模拟转换器；232-第二混频器；232-功率放大器；234-双工器；235-模拟数字转换器；236-第三混频器；237-低讯杂放大器；238-第一带通滤波器；239-第二带通滤波器；23-RF module; 231-Digital to analog converter; 232-Second mixer; 232-Power amplifier; 234-Duplexer; 235-Analog-to-digital converter; 236-Third mixer; 237-Low signal Miscellaneous amplifier; 238-first bandpass filter; 239-second bandpass filter;
24-第一混频器；25-射频端口；24-The first mixer; 25-RF port;
26-近端覆盖模块；261-第三功率分配器；262-第三射频天线；26-near-end coverage module; 261-third power divider; 262-third radio frequency antenna;
3-接入端多频合路器；3-Multi-frequency combiner at the access end;
4-无源室分网络；4- Passive room sub-network;
5-输出端多频合路器；5- Multi-frequency combiner at the output end;
6-远端覆盖模块；61-第一功率分配器；62-第二功率分配器；63- 第一射频天线；64-远端机；65-第二射频天线；6-remote coverage module; 61-first power divider; 62-second power divider; 63-first radio frequency antenna; 64-remote unit; 65-second radio frequency antenna;
7-供电模块。7- Power supply module.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。基于本实用新型中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本实用新型保护的范围。The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本实用新型的描述中，除非另有说明，“多个”的含义是两个或两个以上。The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Removal connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
基站即公用移动通信基站，是移动设备接入互联网的接口设备，也是无线电台站的一种形式，是指在一定的无线电覆盖区中，通过移动通信交换中心，与移动电话终端之间进行信息传递的无线电收发信电台。A base station is a public mobile communication base station, which is an interface device for mobile devices to access the Internet, and is also a form of radio station. Passed radio transceiver station.
随着技术的不断发展，由于一体化基站馈线损耗大、功耗大、散热难等缺点，并且难以满足日益增长的信道容量需求。基于此，基站系统朝着分体式模块化的方向不断前进。With the continuous development of technology, the integrated base station has disadvantages such as large feeder loss, high power consumption, and difficult heat dissipation, and it is difficult to meet the increasing channel capacity requirements. Based on this, the base station system is moving forward in the direction of split modularization.
室内基带处理单元(Building Base band Unit，BBU)与射频拉远单元是 2G、3G以及4G网络大量使用的分布式基站架构。射频拉远单元和室内基带处理单元之间一般需要用光纤连接，也可以使用双绞网线进行连接。一个室内基带处理单元可以支持连接多个射频拉远单元。采用BBU+RRU多通道的技术方案，可以很好地解决大型场馆的室内覆盖的问题。Indoor baseband unit (Building Baseband Unit, BBU) and remote radio unit are distributed base station architectures that are widely used in 2G, 3G and 4G networks. The remote radio unit and the indoor baseband processing unit generally need to be connected by an optical fiber, or a twisted pair network cable can be used for connection. An indoor baseband processing unit can support the connection of multiple remote radio units. Using the BBU+RRU multi-channel technical solution can well solve the indoor coverage problem of large venues.
现有技术中的室内覆盖方案的室内分布系统，一般是通过2G、3G以及 4G等射频拉远单元作为信源进行信号接入，并经射频馈线连接至各室内分布天线，实现室内覆盖移动信号的覆盖。由于在2G、3G以及4G网络基础建设时，已经部署了数量巨大的室内分布系统。但是，现有的室内分布系统的射频馈线的通道有限，且射频馈线支持传输的变频信号的频段一般为 500～2700MHz。而5G射频信号一般包括3400MHz～3500MHz、 3500MHz～3600MHz以及4800MHz～4900MHz等频段，即5G射频信号的频段一般大于变频信号的频段。因此，射频拉远单元输出的5G信号频段不能直接通过射频馈线(即现网室内分布系统)进行传输。The indoor distribution system of the indoor coverage scheme in the prior art generally uses 2G, 3G, and 4G radio frequency remote units as signal sources for signal access, and is connected to each indoor distribution antenna through radio frequency feeders to achieve indoor coverage of mobile signals. coverage. As the 2G, 3G and 4G network infrastructure has been deployed, a huge number of indoor distribution systems have been deployed. However, the channels of the RF feeder of the existing indoor distribution system are limited, and the frequency band of the frequency conversion signal supported by the RF feeder to transmit is generally 500-2700 MHz. The 5G radio frequency signal generally includes frequency bands such as 3400MHz to 3500MHz, 3500MHz to 3600MHz, and 4800MHz to 4900MHz, that is, the frequency band of the 5G radio frequency signal is generally larger than the frequency band of the frequency conversion signal. Therefore, the 5G signal frequency band output by the remote radio unit cannot be directly transmitted through the radio frequency feeder (that is, the indoor distribution system of the existing network).
基于此，如图1所示，现有技术提供了一种室内分布系统。包括第一射频拉远装置01、第二射频拉远装置02、近端机03、第一合路器04、无源室分网络(射频馈线网络)05、第二合路器06、功分耦合器07、天线08、远端机09以及供电单元010。其中，第一射频拉远装置01可以是一个，也可以是多个，每个第一射频拉远装置01分别与第一合路器04电连接，并可以传输 2G射频信号、3G射频信号或者4G射频信号，在此不作限定。同样的，第二射频拉远装置02可以是一个，也可以是多个，但第二射频拉远装置02用于与5G室内基带处理单元(即5G基站)电连接，并可以传输5G基带信号，第二射频拉远装置02还用于5G基带信号与5G射频信号的转换。第二射频拉远装置02可以与近端机03电连接，并传输5G射频信号，且近端机03用于5G射频信号与5G变频信号的转换。其中，变频信号可以包括2G射频信号、3G射频信号、4G射频信号以及5G变频信号。Based on this, as shown in FIG. 1 , the prior art provides an indoor distribution system. It includes a first remote radio device 01, a second remote radio device 02, a near-end unit 03, a first combiner 04, a passive room sub-network (RF feeder network) 05, a second combiner 06, a power divider Coupler 07, antenna 08, remote unit 09 and
由于第一射频拉远装置01与近端机03分别与第一合路器04电连接，且第一合路器04与无源室分网络(射频馈线网络)05电连接。在下行(TX) 方向，第一合路器04可以将多路变频信号(2G射频信号、3G射频信号以及 4G射频信号中的至少一路，以及5G变频信号)合路，并将下行的合路信号馈入单通道的无源室分网络(射频馈线网络)05中进行传输。或者，在上行 (RX)方向，第一合路器04可以由无源室分网络(射频馈线网络)05中接收上行的合路信号，并将上行的合路信号分路后分别对应传输至第一射频拉远装置01以及近端机03。Because the first remote radio device 01 and the near-end unit 03 are respectively electrically connected to the first combiner 04 , and the first combiner 04 is electrically connected to the passive room sub-network (RF feeder network) 05 . In the downlink (TX) direction, the first combiner 04 can combine multiple frequency conversion signals (at least one of 2G radio frequency signals, 3G radio frequency signals, and 4G radio frequency signals, and 5G frequency conversion signals), and combine the downlink combined circuits. The signal is fed into a single-channel passive room sub-network (RF feeder network) 05 for transmission. Alternatively, in the uplink (RX) direction, the first combiner 04 can receive the uplink combined signal from the passive room sub-network (RF feeder network) 05, and split the uplink combined signal and transmit it to The first remote radio device 01 and the near-end device 03 .
如图1所示，在天线08侧，第二合路器06分别与无源室分网络05以及功分耦合器07电连接。示例性的，在下行方向，第二合路器06可以接收无源室分网络05传输的下行的合路信号，并将合路信号进行分路，将分路的变频信号分别馈入对应的功分耦合器07中。由于2G射频信号、3G射频信号以及4G射频信号的频段为500～2700MHz，可以直接由无源室分网络05进行传输，如此，第二合路器06分出的2G射频信号、3G射频信号或者4G射频信号可以由功分耦合器07分为多路信号，并通过天线08进行无线信号覆盖。而第二合路器06分出的5G变频信号可以通过功分耦合器07与多个远端机 09电连接，通过远端机09可以将5G变频信号还原为5G射频信号，并可以通过远端机09的天线模块(图中未示处)进行5G信号覆盖。As shown in FIG. 1 , on the side of the antenna 08 , the second combiner 06 is electrically connected to the passive room sub-network 05 and the power division coupler 07 , respectively. Exemplarily, in the downlink direction, the second combiner 06 may receive the downlink combined signal transmitted by the passive room branch network 05, split the combined signal, and feed the split frequency conversion signal into the corresponding In the power division coupler 07. Since the frequency band of the 2G radio frequency signal, 3G radio frequency signal and 4G radio frequency signal is 500-2700MHz, they can be directly transmitted by the passive room network 05, so the 2G radio frequency signal, 3G radio frequency signal separated by the second combiner 06 or The 4G radio frequency signal can be divided into multiple signals by the power division coupler 07 and covered by the wireless signal through the antenna 08 . The 5G frequency conversion signal split by the second combiner 06 can be electrically connected to a plurality of remote units 09 through the power division coupler 07, and the 5G frequency conversion signal can be restored to a 5G radio frequency signal through the remote unit 09, and can be transmitted through the remote unit 09. The antenna module (not shown in the figure) of the terminal 09 performs 5G signal coverage.
或者，在上行方向，远端机09的天线模块可以接收5G射频信号后可以经远端机09转化为5G变频信号，并经功分耦合器07传向第二合路器06。对应天线08接收2G射频信号、3G射频信号或者4G射频信号等变频信号后经功分耦合器07传向第二合路器06，第二合路器06将接收的多路变频信号进行合路后馈入无源室分网络05中。其中，无源室分网络05一般以便于传输高频信号的同轴线缆布设。Alternatively, in the uplink direction, the antenna module of the remote unit 09 can receive the 5G radio frequency signal and convert it into a 5G frequency conversion signal through the remote unit 09 , and transmit it to the second combiner 06 through the power division coupler 07 . Corresponding antenna 08 receives 2G radio frequency signal, 3G radio frequency signal or 4G radio frequency signal and other frequency conversion signals, and then transmits it to the second combiner 06 through the power division coupler 07, and the second combiner 06 combines the received multi-channel frequency conversion signals. Then feed into the passive room sub-network 05. Among them, the passive room sub-network 05 is generally arranged for coaxial cables for transmitting high-frequency signals.
在上述实施例中，继续参照图1，由于近端机03以及远端机09在5G射频信号与5G变频信号的转换过程中需要接电。因此，可以将供电单元010分别与近端机03以及远端机09电连接，以分别向近端机03以及远端机09提供频率转换时的能量。同时，连接电源的远端机09还可以直接向天线模块供电，可以避免直接由第二射频拉远装置02或者近端机03供电时造成的能量损耗。In the above-mentioned embodiment, referring to FIG. 1 continuously, since the near-end unit 03 and the far-end unit 09 need to be powered on during the conversion process of the 5G radio frequency signal and the 5G frequency conversion signal. Therefore, the
但是，在通过上述实施例覆盖5G移动网络时，由于第二射频拉远装置02与第一合路器04之间需要安装近端机03，并且还需要额外对近端机03进行供电，结构较为复杂。However, when the 5G mobile network is covered by the above embodiment, since the near-end unit 03 needs to be installed between the second remote radio device 02 and the first combiner 04, and the near-end unit 03 needs to be additionally powered, the structure more complicated.
基于此，如图2所示，本实用新型实施例提供了一种室内分布系统。该室内分布系统包括第一射频拉远装置1、5G射频拉远装置2、接入端多频合路器3、无源室分网络4、输出端多频合路器5、远端覆盖模块6以及供电模块7。Based on this, as shown in FIG. 2 , an embodiment of the present invention provides an indoor distribution system. The indoor distribution system includes a first remote radio device 1, a 5G remote radio device 2, an access end multi-frequency combiner 3, a passive indoor network 4, an output end multi-frequency combiner 5, and a remote coverage module 6 and the power supply module 7.
继续参照图2，其中，第一射频拉远装置1相当于图1中的第一射频拉远装置01。第一射频拉远装置1可以与接入端多频合路器3电连接，并可以传输2G射频信号、3G射频信号以及4G射频信号中的一种或者多种。而5G射频拉远装置可以是一个，也可以是多个。5G射频拉远装置2用于与5G室内基带处理单元(即5G基站，图中未示处)电连接，并传输5G基带信号，且 5G射频拉远装置2用于5G基带信号与5G变频信号的转换。5G射频拉远装置2还可以直接与接入端多频合路器3电连接，两者之间可以直接传输5G变频信号(即频段为500MHz～2700MHz的变频信号)。Continuing to refer to FIG. 2 , the first remote radio device 1 is equivalent to the first remote radio device 01 in FIG. 1 . The first remote radio device 1 can be electrically connected to the multi-frequency combiner 3 at the access end, and can transmit one or more of 2G radio frequency signals, 3G radio frequency signals and 4G radio frequency signals. The 5G radio remote device can be one or multiple. The 5G radio remote device 2 is used for electrical connection with the 5G indoor baseband processing unit (ie, the 5G base station, not shown in the figure), and transmits 5G baseband signals, and the 5G radio remote device 2 is used for 5G baseband signals and 5G frequency conversion signals conversion. The 5G radio remote device 2 can also be directly electrically connected to the multi-frequency combiner 3 at the access end, and 5G frequency conversion signals (ie, frequency conversion signals with a frequency band of 500MHz to 2700MHz) can be directly transmitted between the two.
由于接入端多频合路器3分别与第一射频拉远装置1以及5G射频拉远装置2电连接。如此，在下行方向，接入端多频合路器3可以接收5G射频拉远装置2发送的下行的5G变频信号，并同时接收第一射频拉远装置1发送的下行的2G射频信号、下行的3G射频信号以及下行的4G射频信号中的至少一路。随后，接入端多频合路器3将上述多路下行的变频信号进行合路，并将下行的合路信号馈入与接入端多频合路器3电连接的无源室分网络4中进行传输。Because the multi-frequency combiner 3 at the access end is electrically connected to the first remote radio device 1 and the 5G remote radio device 2 respectively. In this way, in the downlink direction, the multi-frequency combiner 3 at the access end can receive the downlink 5G frequency conversion signal sent by the 5G remote radio device 2, and simultaneously receive the downlink 2G radio frequency signal sent by the first remote radio device 1, and the downlink At least one of the 3G radio frequency signal and the downlink 4G radio frequency signal. Then, the access-side multi-frequency combiner 3 combines the above-mentioned downlink frequency conversion signals, and feeds the combined downlink signal into the passive room sub-network electrically connected to the access-side multi-frequency combiner 3 4 for transmission.
或者，在上行方向，接入端多频合路器3可以接收无源室分网络4中传输的上行的合路信号，并通过接入端多频合路器3将上行的合路信号进行分路，包括上行的2G射频信号、上行的3G射频信号以及上行的4G射频信号中的至少一路以及上行的5G变频信号。随后将上行的5G变频信号传输至5G 射频拉远装置2，并将其他上行的射频信号传输至对应的第一射频拉远装置1。Alternatively, in the uplink direction, the access-side multi-frequency combiner 3 can receive the uplink combined signal transmitted in the passive room network 4, and use the access-side multi-frequency combiner 3 to perform the uplink combined signal. Branching, including at least one of the uplink 2G radio frequency signal, the uplink 3G radio frequency signal, the uplink 4G radio frequency signal, and the uplink 5G frequency conversion signal. Then, the uplink 5G frequency conversion signal is transmitted to the 5G remote radio device 2 , and other uplink radio frequency signals are transmitted to the corresponding first remote radio device 1 .
如图2所示，在远端覆盖模块6侧，远端覆盖模块6可以包括第一功率分配器61、第二功率分配器62、第一射频天线63、远端机64以及第二射频天线65。输出端多频合路器5的一端可以与无源室分网络4电连接，另一端可以分别与第一功率分配器61以及第二功率分配器62电连接。As shown in FIG. 2, on the side of the remote coverage module 6, the remote coverage module 6 may include a first power divider 61, a second power divider 62, a first
示例性的，继续参照图2，在下行方向，输出端多频合路器5可以接收无源室分网络4传输的下行的合路信号，并将合路信号分路，包括下行的2G射频信号、下行的3G射频信号以及下行的4G射频信号中的至少一路以及下行的5G变频信号。随后将下行的5G变频信号传输至第二功率分配器62，并将其他下行的射频信号传输至对应的第一功率分配器61。由于2G射频信号、 3G射频信号以及4G射频信号的频段为500～2700MHz，可以直接通过无源室分网络05进行传输。如此，经输出端多频合路器5分出的下行的2G射频信号、下行的3G射频信号或者下行的4G射频信号可以由第一功率分配器61 分为两路下行的射频信号，且两路下行的射频信号可以分别通过与第一功率分配器61电连接的第一射频天线63输出，并进行5G信号覆盖，从而发射下行的射频信号。对于5G信号而言，输出端多频合路器5分出的下行的5G变频信号可以通过第二功率分配器62连接多个远端机64，且每个远端机64分别与一个第二射频天线65电连接。如此，下行的5G变频信号经第二功率分配器62进行分路后，通过每个远端机64可以将分路后的下行的5G变频信号还原为下行的5G射频信号，且下行的5G射频信号可以通过第二射频天线65 输出，以实现5G信号的覆盖，即发射下行的5G射频信号。2, in the downstream direction, the output multi-frequency combiner 5 can receive the downstream combined signal transmitted by the passive room network 4, and split the combined signal, including the downstream 2G radio frequency. At least one of the signal, the downlink 3G radio frequency signal, the downlink 4G radio frequency signal, and the downlink 5G frequency conversion signal. Then, the downlink 5G frequency conversion signal is transmitted to the second power distributor 62 , and other downlink radio frequency signals are transmitted to the corresponding first power distributor 61 . Since the frequency band of the 2G radio frequency signal, the 3G radio frequency signal and the 4G radio frequency signal is 500-2700MHz, they can be directly transmitted through the passive room sub-network 05. In this way, the downlink 2G radio frequency signal, the downlink 3G radio frequency signal or the downlink 4G radio frequency signal separated by the output multi-frequency combiner 5 can be divided into two downlink radio frequency signals by the first power divider 61, and the two The downlink radio frequency signals can be respectively output through the first
或者，在上行方向，第二射频天线65可以接收上行的5G射频信号，如手机、定位器等无线终端发出的上行的5G射频信号。如此，远端机64可以接收第二射频天线65传输的上行的5G射频信号，并该上行的5G射频信号转换为上行的5G变频信号，随后将该上行的5G变频信号经第二功率分配器 62传向输出端多频合路器5。对应的，第一射频天线63也可以接收无线终端发出的上行的2G射频信号、上行的3G射频信号或者上行的4G射频信号，随后通过第一功率分配器61将上述上行的射频信号也传向输出端多频合路器 5。这样，输出端多频合路器5上行的多路变频信号(上行的2G射频信号、上行的3G射频信号以及上行的4G射频信号中的至少一路，以及上行的5G 变频信号)进行合路后，将上行的合路信号馈入无源室分网络4中。Alternatively, in the uplink direction, the second
本实用新型实施例提供的包括5G射频拉远装置2的室内分布系统，通过 5G射频拉远装置可以输出能够直接利用无源室分网络4进行传输的5G变频信号，从而使得射频频段较高的5G移动网络可以直接利用现网的室内分系统实现5G信号覆盖。相较于现有技术，本实用新型实施例的技术方案，无需在 5G射频拉远装置2以及接入端多频合路器3之间额外设置近端机，减少了室内分布系统中5G信号覆盖时使用设备的数量，有利于降低建网成本。并且，由于近端机是用于射频信号变频的有源设备，即需要消耗电能维持设备的运行，因此，本实用新型实施例提供的室内分布系统还有利于降低整个系统设备的运行功耗，更加节能。The indoor distribution system including the 5G radio frequency remote device 2 provided by the embodiment of the present invention can output the 5G frequency conversion signal that can be directly transmitted by the passive indoor distribution network 4 through the 5G radio frequency remote device, so that the radio frequency frequency is relatively high. The 5G mobile network can directly utilize the indoor sub-system of the existing network to achieve 5G signal coverage. Compared with the prior art, the technical solution of the embodiment of the present invention does not require an additional near-end unit between the 5G remote radio device 2 and the access-end multi-frequency combiner 3, which reduces the number of 5G signals in the indoor distribution system. The number of devices used during coverage is conducive to reducing network construction costs. In addition, since the near-end unit is an active device used for frequency conversion of radio frequency signals, that is, it needs to consume electrical energy to maintain the operation of the device. Therefore, the indoor distribution system provided by the embodiment of the present invention is also conducive to reducing the operating power consumption of the entire system device. More energy efficient.
因此，在本实用新型实施例中，继续参照图2，供电模块7可以分别与多个远端机64电连接，从而为远端机64中5G射频信号以及5G变频信号之间的频率转换提供动力，以保证设备的稳定运行。并且，通过远端机64，供电模块7还可以对分路后的5G射频信号进行放大，从而提高第二射频天线65的5G信号的覆盖强度。Therefore, in the embodiment of the present invention, referring to FIG. 2 , the power supply module 7 can be electrically connected to a plurality of remote units 64 respectively, so as to provide frequency conversion between 5G radio frequency signals and 5G frequency conversion signals in the remote units 64 . power to ensure the stable operation of the equipment. In addition, through the remote unit 64 , the power supply module 7 can also amplify the branched 5G radio frequency signal, thereby improving the coverage strength of the 5G signal of the second
在一些实施例中，可以在每层室内空间或者预设范围的区域内设置一个远端覆盖模块6，该远端覆盖模块6可以包括三个远端机64、三个第二射频天线65以及两个第二功率分配器62。其中，在下行方向，每个第二功率分配器62可以将一路下行的5G变频信号分为两路下行的5G 变频信号，这样，通过串联的两个第二功率分配器62可以分出三路下行的5G变频信号，并分别通过三个远端机64转换后经第二射频天线65 进行5G信号覆盖。In some embodiments, a remote coverage module 6 may be provided in each floor of the indoor space or a preset range area, and the remote coverage module 6 may include three remote units 64 , three second
在上述实施例中，第二功率分配器62也可以是三功分器。如此，在下行方向上，该第二功率分配器62具有一个输入口以及三个输出口。此时，第二功率分配器62只需一个即可。In the above embodiment, the second power divider 62 may also be a three-power divider. Thus, in the downstream direction, the second power divider 62 has one input port and three output ports. In this case, only one second power divider 62 is required.
又或者，每个远端覆盖模块6可以包括一个远端机64以一个第二射频天线65。如此，第二射频天线65可以通过远端机64直接连接输出端多频合路器5。Alternatively, each remote coverage module 6 may include a remote unit 64 and a second
因此，在本实用新型实施例中，对于远端覆盖模块6中远端机64的数量与第二射频天线65的数量，可以是一个、两个、三个甚至更多。一般远端机64的数量可以与第二射频天线65的数量相等，或者，也可以使每个远端机64分别与两个、三个设置多的第二射频天线65电连接。当第二功率分配器62为二功分结构时，第二功率分配器62的数量比远端机64的数量少一个；当第二功率分配器62为三功分结构时，第二功率分配器62的数量比远端机64的数量少两个。在此不作限定。Therefore, in the embodiment of the present invention, the number of remote units 64 and the number of second
需要说明的是，在本实用新型实施例中，射频拉远装置可以是RRU，也可以是pRRU(Pico Remote Radio Unit，即微射频拉远装置)。射频拉远装置与基带处理单元之间一般通过CPRI(Common Public Radio Interface，即通用公共无线接口)协议或者eCPRI(enhanced Common Public Radio Interface，即增强型通用公共无线接口)协议传输基带信号。本实用新型对此不作限定。It should be noted that, in the embodiment of the present invention, the remote radio device may be an RRU or a pRRU (Pico Remote Radio Unit, that is, a micro radio remote device). The baseband signal is generally transmitted between the remote radio device and the baseband processing unit through the CPRI (Common Public Radio Interface, ie Common Public Radio Interface) protocol or the eCPRI (enhanced Common Public Radio Interface, ie enhanced Common Public Radio Interface) protocol. The present invention does not limit this.
如图3所示，示例性的，5G射频拉远装置2可以包括依次电连接的基带端口21、中频模块22、射频模块23、第一混频器24以及射频端口 25。As shown in FIG. 3, exemplarily, the 5G remote radio device 2 may include a baseband port 21, an intermediate frequency module 22, a radio frequency module 23, a first mixer 24, and a
其中，在下行方向，基带端口21用于连接5G基带处理单元(图中未示出)，并接收5G基带处理单元传输的下行的基带信号。示例性的，基带端口21与5G基带处理单元之间可以通过光纤信号承载并传输下行的5G基带信号，对应基带端口21为光模块，且基带端口21可以由光纤信号中解析出下行的5G基带信号并输出，一般为数字信号。随后，中频模块22接收下行的5G基带信号，且中频模块22将下行的5G基带信号转换为下行的5G中频信号并输出，该下行的5G中频信号一般为数字信号。之后，射频模块23接收下行的5G中频信号，且射频模块23 将下行的5G中频信号转换为下行的5G射频信号并输出。第一混频器24 接收下行的5G射频信号，且第一混频器24将下行的5G射频信号转换为5G变频信号并输出。射频端口25可以接收5G变频信号并将之发送出去，一般通过同轴线缆传输5G变频信号，也可以直接与接入端多频合路器3电连接。Wherein, in the downlink direction, the baseband port 21 is used to connect to the 5G baseband processing unit (not shown in the figure), and receive the downlink baseband signal transmitted by the 5G baseband processing unit. Exemplarily, between the baseband port 21 and the 5G baseband processing unit, the downlink 5G baseband signal can be carried and transmitted through the optical fiber signal, the corresponding baseband port 21 is an optical module, and the baseband port 21 can be analyzed from the optical fiber signal. signal and output, generally a digital signal. Then, the intermediate frequency module 22 receives the downlink 5G baseband signal, and the intermediate frequency module 22 converts the downlink 5G baseband signal into a downlink 5G intermediate frequency signal and outputs it. The downlink 5G intermediate frequency signal is generally a digital signal. After that, the radio frequency module 23 receives the downlink 5G intermediate frequency signal, and the radio frequency module 23 converts the downlink 5G intermediate frequency signal into a downlink 5G radio frequency signal and outputs it. The first mixer 24 receives the downlink 5G radio frequency signal, and the first mixer 24 converts the downlink 5G radio frequency signal into a 5G frequency conversion signal and outputs it. The
此外，在上行方向，射频端口25可以接收接入端多频合路器3输出的上行的5G变频信号，并将至传输至第一混频器24处。第一混频器24 可以将上行的5G变频信号转换为上行的5G射频信号，并传输至射频模块23。射频模块23可以将上行的5G射频信号转换为上行的5G中频信号，并传输至中频模块22。中频模块22可以将上行的5G中频信号转换为上行的5G基带信号，并最终经基带端口21通过光纤信号承载并传输 5G基带信号至5G基带处理单元(即基站)处，用于连接城域网。In addition, in the upstream direction, the
因此，本实用新型实施例提供的5G射频拉远装置2可以用于室内分布系统的信号覆盖，由于5G射频拉远装置2同时集成射频拉远装置以及降频的远端机的功能，无需额外设置远端机，具有更高的集成度。并且，该方案只需在射频拉远装置2中添加用于变频的第一混频器24即可，无需额外的改动，结构简单，功能实用。Therefore, the 5G remote radio device 2 provided by the embodiment of the present invention can be used for signal coverage of an indoor distribution system. Since the 5G remote radio device 2 integrates the functions of the remote radio device and the down-frequency remote unit at the same time, there is no need for additional Set the remote machine, with higher integration. In addition, this solution only needs to add the first mixer 24 for frequency conversion in the remote radio device 2, no additional modification is required, the structure is simple, and the function is practical.
在一些实施例中，如图4所示，5G射频拉远装置2还可以包括近端覆盖模块26，近端覆盖模块26可以包括第三功率分配器261以及第三射频天线262。示例性的，第三功率分配器261安装于射频模块23与第一混频器24之间，在下行方向，第三功率分配器261的输入端与其中一个输出端分别于射频模块23以及第一混频器24电连接，第三功率分配器261的其他输出端口与第三射频天线262电连接。如此，第三功率分配器261与射频模块23之间可以传输5G射频信号，且第三功率分配器 261通过功分器或者耦合器将5G射频信号分为多路5G射频信号。其中一个5G射频信号在第三功率分配器261与第一混频器24之间传输，其他的5G射频信号在第三功率分配器261与第三射频天线262之间传输，并通过第三射频天线262实现5G信号覆盖。In some embodiments, as shown in FIG. 4 , the 5G remote radio frequency device 2 may further include a near-end covering module 26 , and the near-end covering module 26 may include a third power splitter 261 and a third radio frequency antenna 262 . Exemplarily, the third power divider 261 is installed between the radio frequency module 23 and the first mixer 24. In the downstream direction, the input end and one of the output ends of the third power divider 261 are respectively connected to the radio frequency module 23 and the first frequency mixer 24. A mixer 24 is electrically connected, and other output ports of the third power divider 261 are electrically connected to the third radio frequency antenna 262 . In this way, a 5G radio frequency signal can be transmitted between the third power divider 261 and the radio frequency module 23, and the third power divider 261 divides the 5G radio frequency signal into multiple 5G radio frequency signals through a power divider or a coupler. One of the 5G radio frequency signals is transmitted between the third power divider 261 and the first mixer 24, and the other 5G radio frequency signals are transmitted between the third power divider 261 and the third radio frequency antenna 262, and pass through the third radio frequency The antenna 262 achieves 5G signal coverage.
因此，上述5G射频拉远装置可以通过近端覆盖模块26中的第三射频天线262进行5G信号覆盖。如可以对布置5G射频拉远装置附近的区域空间直接进行5G信号覆盖，而无需利用室内分布网络。即本实用新型实施例提供的5G射频拉远装置可以用于自身附近区域的5G信号覆盖，也可以同时通过室内分布网络输出5G变频信号，以满足其他区域的5G 信号覆盖。结构简单，应用广泛。Therefore, the above-mentioned 5G remote radio frequency device can perform 5G signal coverage through the third radio frequency antenna 262 in the near-end coverage module 26 . For example, 5G signal coverage can be directly carried out in the area near the 5G radio remote device without using the indoor distribution network. That is, the 5G radio frequency remote device provided by the embodiment of the present invention can be used for 5G signal coverage in the vicinity of itself, and can also output 5G frequency conversion signals through an indoor distribution network to meet 5G signal coverage in other areas. Simple structure and wide application.
示例性的，近端覆盖模块26可以包括一个第三功率分配器261以及一个射频天线262。此时，第三功率分配器261可以是无源功分器或者无源耦合器，以将与射频模块23之间的一路5G射频信号转换为两路5G 射频信号，其中一路与第一混频器24进行传输，另一路与第三射频天线 262进行传输，以实现5G射频拉远装置附近的5G信号覆盖。Exemplarily, the near-end coverage module 26 may include a third power splitter 261 and a radio frequency antenna 262 . At this time, the third power divider 261 may be a passive power divider or a passive coupler, so as to convert one 5G radio frequency signal with the radio frequency module 23 into two 5G radio frequency signals, one of which is mixed with the first frequency The transmitter 24 performs transmission, and the other channel transmits with the third radio frequency antenna 262, so as to achieve 5G signal coverage near the 5G radio frequency remote device.
或者，近端覆盖模块26也可以包括多个第三功率分配器261以及多个射频天线262。此时，第三功率分配器261可以是二功分的功分器或者耦合器。在射频模块23与第一混频器25之间，多个第三功率分配器 261依次电连接，且每个第三功率分配器261还与一个第三射频天线262 电连接，从而实现5G射频拉远装置附近多路的5G信号覆盖。Alternatively, the near-end coverage module 26 may also include a plurality of third power dividers 261 and a plurality of radio frequency antennas 262 . At this time, the third power divider 261 may be a two-power divider or a coupler. Between the radio frequency module 23 and the
又或者，近端覆盖模块26也可以包括一个第三功率分配器261以及多个射频天线262。此时，第三功率分配器261可以是三功分、四功分或者五功分甚至更多分路的功分器或者耦合器。在下行方向，第三功率分配器261的输入端与射频模块23电连接，其中一个输出端与第一混频器24电连接，且第三功率分配器261的其他输出端分别与一个射频天线 262电连接，也可以实现5G射频拉远装置附近多路的5G信号覆盖。Alternatively, the near-end coverage module 26 may also include a third power divider 261 and multiple radio frequency antennas 262 . At this time, the third power divider 261 may be a power divider or a coupler with three power divisions, four power divisions, or five power divisions or even more branches. In the downstream direction, the input end of the third power divider 261 is electrically connected to the radio frequency module 23, one output end of which is electrically connected to the first mixer 24, and the other output ends of the third power divider 261 are respectively connected to a radio frequency antenna 262 electrical connection, and can also achieve multi-channel 5G signal coverage near the 5G radio remote device.
需要说明的是，在上述第三射频天线262为多个的两个实施例中，第三功率分配器261一般为有源功分器或者有源耦合器，从而使得分路的5G射频信号具有足够的信号强度，以使第三射频天线262具有较高的5G信号覆盖强度。其中，功分器一般是指可以将一路信号平均分配的功率分配器，耦合器一般是指可以将一路信号按照预设比例进行分配的功率分配器。此外，在远端覆盖模块6中，由于远端机64可以与供电模块7电连接，因此，对于第一功率分配器61而言，可以是有源器件也可以是无源器件，在此不作限定。It should be noted that, in the above two embodiments in which there are multiple third radio frequency antennas 262, the third power divider 261 is generally an active power divider or an active coupler, so that the branched 5G radio frequency signal has Sufficient signal strength, so that the third radio frequency antenna 262 has a high 5G signal coverage strength. Among them, the power divider generally refers to a power divider that can evenly distribute a signal of one channel, and the coupler generally refers to a power divider that can distribute a signal of one channel according to a preset ratio. In addition, in the remote coverage module 6, since the remote unit 64 can be electrically connected to the power supply module 7, the first power distributor 61 can be an active device or a passive device, which is not described here. limited.
其中，5G射频拉远装置2可以是单通道的射频拉远装置。如5G射频拉远装置2与接入端多频合路器3之间一般传输一个频段的5G变频信号。此外，为了提高信道容量，5G射频拉远装置2也可以是多通道的射频拉远装置。如5G射频拉远装置2与接入端多频合路器3之间可以传输两个、三个甚至更多频段的5G变频信号，从而通过多个频段的信道提高信道容量。示例性的，在下行方向，与射频模块23或者第三功率分配器261电连接的第一混频器24可以接入频段为3500MHz～3600MHz 的下行的5G射频信号，并将下行的5G射频信号转换为频段分别为 1100MHz～1200MHz以及500MHz～600MHz的两路下行的5G变频信号，并通过接入端多频合路器3合路后输出至无源室分网络4中。The 5G remote radio device 2 may be a single-channel remote radio device. For example, a 5G frequency conversion signal of one frequency band is generally transmitted between the 5G remote radio device 2 and the multi-frequency combiner 3 at the access end. In addition, in order to improve the channel capacity, the 5G remote radio device 2 may also be a multi-channel remote radio device. For example, two, three or even more frequency bands of 5G frequency conversion signals can be transmitted between the 5G radio remote device 2 and the access-end multi-frequency combiner 3, thereby improving channel capacity through channels of multiple frequency bands. Exemplarily, in the downlink direction, the first mixer 24 electrically connected to the radio frequency module 23 or the third power divider 261 can access downlink 5G radio frequency signals with a frequency band of 3500MHz to 3600MHz, and combine the downlink 5G radio frequency signals. It is converted into two downlink 5G frequency conversion signals with frequency bands of 1100MHz to 1200MHz and 500MHz to 600MHz respectively, and is combined by the multi-frequency combiner 3 at the access end and then output to the passive room sub-network 4.
对应的，在远端覆盖模块6中，远端机64可以通过输出端多频合路器5以及第二功率分配器62接收下行的两路5G变频信号，即频段分别为1100MHz～1200MHz以及500MHz～600MHz的两路下行的5G变频信号。且远端机64可以将两路下行的5G变频信号分别转换为两路对应的 5G射频信号并放大处理后，通过两路第二射频天线65输出并进行5G 信号覆盖。Correspondingly, in the remote coverage module 6, the remote unit 64 can receive two downlink 5G frequency conversion signals through the output multi-frequency combiner 5 and the second power divider 62, that is, the frequency bands are 1100MHz-1200MHz and 500MHz respectively. ～600MHz two-way downlink 5G frequency conversion signal. And the remote unit 64 can convert the two channels of downlink 5G frequency conversion signals into two channels of corresponding 5G radio frequency signals respectively, and after amplifying and processing, the two channels of second
在一些实施例中，如图5所示，中频模块22可以包括数字上变频器 221以及数字下变频器222。对应射频模块可以包括数字模块转换器231、第二混频器232、功率放大器233、双工器234、模拟数字转换器235、第三混频器236以及低讯杂放大器237。In some embodiments, as shown in FIG. 5 , the intermediate frequency module 22 may include a digital up-
参照图5，示例性的，在下行方向，数字上变频器221可以与基带端口21(如图3所示)电连接，以接收下行的5G基带信号，并将下行的5G基带信号进行升频处理，转换为下行的5G中频信号进行输出。数字上变频器221与双工器234之间依次电连接数字模拟转换器231、第二混频器232以及信号放大器231。数字模拟转换器231可以接收下行的5G中频信号，并将下行的5G中频信号转换为下行的模拟信号。第二混频器232可以接收下行的模拟信号进行升频处理，并将之转换为5G 射频信号。而功率放大器233可以接收5G射频信号并将该信号放大处理后通过双工器234输出至第一混频端口24或者第三功率分配器261(如图4所示)处。Referring to FIG. 5 , exemplarily, in the downstream direction, the digital up-
继续参照图5，在上行方向，双工器234依次与低讯杂放大器237、第三混频器236、模拟数字转换器235以及数字下变频器222电连接。其中，双工器234可以接收来自第一混频端口24或者第三功率分配器 261的上行的5G射频信号，并将之传输至低讯杂放大器237。低讯杂放大器237可以将上行的5G射频信号进行放大处理，并将之传输至第三混频器236。第三混频器236可以将放大后的上行的5G射频信号进行降频，并转换为上行的模拟信号进行输出。模拟数字转换器235可以接收上行的模拟信号，并将之转换为上行的5G中频信号(数字信号)进行输出。数字下变频器222可以接收上行的5G中频信号，并将之转换为上行的5G基带信号。且数字下变频器222用于将上行的5G基带信号传输至基带端口21处。Continuing to refer to FIG. 5 , in the upstream direction, the
如此，对于5G射频拉远装置2而言，在将5G基带信号转换为5G 射频信号的过程中，通过中频模块22中的数字上变频器221以及数字下变频器222处理的5G中频信号，有利于使转换的5G射频信号具有更高的频率。其中，双工器234是一种可以将上行信号以及下行信号相互隔离，保证上行信号以及下行信号都能够同时正常传输的设备。双工器234 一般有两组不同频率的带阻滤波器组成。从而使得功率放大器233输出下行的5G射频信号可以经双工器234传输至第一混频端口24或者第三功率分配器261处，并使低讯杂放大器237可以通过双工器234接收第一混频端口24或者第三功率分配器261传输的上行的5G射频信号。In this way, for the 5G radio frequency remote device 2, in the process of converting the 5G baseband signal into a 5G radio frequency signal, the 5G intermediate frequency signal processed by the
在一些实施例中，如图6所示，在下行方向，中频模块22还可以包括数字滤波器223以及数字预失真器224，对应射频模块23还可以包括第一带通滤波器238。示例性的，数字滤波器223与数字预失真器224 可以安装于数字上变频器221与数字模拟转换器231之间，数字滤波器 223分别与数字上变频器221与数字预失真器224电连接，且数字预失真器224还与数字模拟转换器电连接。而第一带通滤波器238安装于第二混频器232与功率放大器233之间，且第一带通滤波器238分别与第二混频器232与功率放大器233电连接。In some embodiments, as shown in FIG. 6 , in the downstream direction, the intermediate frequency module 22 may further include a
由于中频信号一般具有较大的峰均比(Peak to Average Ratio，PAR)，且一般符合高斯分布。但是功率放大器233的线性区间是有限的，即较大峰均比的中频信号会降低功率放大器233的工作范围，从而降低功率放大器233的工作效率。因此，可以在数字下变频器221后连接数字滤波器223用于波峰修整或者波峰消减，以减小波峰比，有利于保证功率放大器233输出的线性度，降低带外辐射并提高功率放大器233的工作效率。Because the intermediate frequency signal generally has a larger Peak to Average Ratio (PAR), and generally conforms to a Gaussian distribution. However, the linear range of the power amplifier 233 is limited, that is, an intermediate frequency signal with a larger peak-to-average ratio will reduce the working range of the power amplifier 233 , thereby reducing the working efficiency of the power amplifier 233 . Therefore, a
而数字预失真器224用于对中频信号进行预失真处理，有利于矫正功率放大器233的非线性特性，以使功率放大器233可以输出具有较高线性度的5G射频信号。第一带通滤波器238可以对输入功率放大器233 之前的射频信号进行过滤，以使特定频率范围(频带)的高频类比讯号通过，将不需要的频率范围滤除，得到我们需要的5G射频信号，以便于功率放大器233对5G射频信号进行放大处理并输出。The
对应的，如图7所示，在上行方向，射频模块23还可以包括依次电连接的第二带通滤波器239、低讯杂放大器237、第三混频器236以及模拟数字转换器235。结合图5，第二带通滤波器239安装于双工器234与低讯杂放大器237之间，并分别与双工器234与低讯杂放大器237电连接。这样，第二带通滤波器239可以对低讯杂放大器237之前的射频信号进行过滤，以使特定频率范围(频带)的高频类比讯号通过，将不需要的频率范围滤除，得到我们需要的5G射频信号，以便于低讯杂放大器237对5G射频信号进行放大处理并输出至第三混频器236。Correspondingly, as shown in FIG. 7 , in the upstream direction, the radio frequency module 23 may further include a second bandpass filter 239 , a low noise amplifier 237 , a
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, the particular features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
以上，仅为本实用新型的具体实施方式，但本实用新型的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本实用新型的保护范围之内。因此，本实用新型的保护范围应以权利要求所述的保护范围为准。The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present invention. , all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope described in the claims.
Claims (10)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220794888.0UCN217656751U (en) | 2022-04-06 | 2022-04-06 | 5G radio frequency remote device and indoor distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220794888.0UCN217656751U (en) | 2022-04-06 | 2022-04-06 | 5G radio frequency remote device and indoor distribution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217656751Utrue CN217656751U (en) | 2022-10-25 |
Family
ID=83662957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220794888.0UActiveCN217656751U (en) | 2022-04-06 | 2022-04-06 | 5G radio frequency remote device and indoor distribution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217656751U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116032341A (en)* | 2023-03-09 | 2023-04-28 | 深圳国人无线通信有限公司 | Configuration method of base station parameters and base station |
| CN117156448A (en)* | 2023-11-01 | 2023-12-01 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
| CN118158693A (en)* | 2024-02-04 | 2024-06-07 | 安科讯(福建)科技有限公司 | 5G (5G) capacity baseband unit and 5G communication indoor distribution system |
| CN118432648A (en)* | 2024-03-18 | 2024-08-02 | 深圳市普方众智精工科技有限公司 | A 5G passive frequency conversion module and a passive frequency conversion omnidirectional ceiling antenna |
- 2022
- 2022-04-06CNCN202220794888.0Upatent/CN217656751U/enactiveActive
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116032341A (en)* | 2023-03-09 | 2023-04-28 | 深圳国人无线通信有限公司 | Configuration method of base station parameters and base station |
| CN117156448A (en)* | 2023-11-01 | 2023-12-01 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
| CN117156448B (en)* | 2023-11-01 | 2024-01-30 | 中国铁塔股份有限公司 | Signal transmission method, device and medium |
| CN118158693A (en)* | 2024-02-04 | 2024-06-07 | 安科讯(福建)科技有限公司 | 5G (5G) capacity baseband unit and 5G communication indoor distribution system |
| CN118432648A (en)* | 2024-03-18 | 2024-08-02 | 深圳市普方众智精工科技有限公司 | A 5G passive frequency conversion module and a passive frequency conversion omnidirectional ceiling antenna |
| CN118432648B (en)* | 2024-03-18 | 2025-04-22 | 深圳市普方众智精工科技有限公司 | A 5G passive frequency-converting omnidirectional ceiling antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217656751U (en) | 5G radio frequency remote device and indoor distribution system | |
| US11923905B2 (en) | Distributed antenna system, method and apparatus | |
| CN106712851B (en) | Distributed wireless signal coverage system | |
| CN115276679B (en) | Frequency shift system and frequency shift method | |
| CN211830769U (en) | 5G frequency conversion light distribution system | |
| CN112804691B (en) | Indoor distribution system and signal transmission method | |
| CN102457458B (en) | A method and device for implementing digital predistortion in a base station | |
| US20230354053A1 (en) | Remote device and 5g distributed system | |
| US11617091B1 (en) | Distributed antenna system | |
| CN215186707U (en) | Remote unit and multi-band distributed system | |
| TW201803296A (en) | Multi-business digital light distribution system and multi-business capacity scheduling method | |
| CN102208940A (en) | Radio frequency system | |
| CN110875777A (en) | Multi-frequency multi-mode distributed access system | |
| CN104769855A (en) | Signal transmission device applicable to combined distributed antenna systems | |
| WO2023050551A1 (en) | Remote transmission coverage method and system, and remote unit | |
| CN113014275A (en) | Remote unit, multi-band distributed system and signal processing method | |
| CN102664683A (en) | Remote signal processing method and remote unit used in remote optical fiber type wireless distribution systems | |
| CN213879818U (en) | Support MIMO's 5G room and divide device | |
| CN216414597U (en) | Miniature far-end radio frequency module and indoor distribution system | |
| CN202565279U (en) | Remote terminal for fiber far-pulling type wireless distribution system | |
| CN212231430U (en) | Intermediate frequency signal processing device and communication system | |
| CN214481282U (en) | Remote device and 5G distributed system | |
| CN214315621U (en) | Indoor distribution system | |
| WO2015064938A1 (en) | Donor unit, remote unit, and mobile communication base station system having same | |
| CN218648978U (en) | Low-cost 5G Telecom Indoor Coverage System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |