WO2008037160A1 - Radio receiving system, method and duplexer - Google Patents

Radio receiving system, method and duplexer Download PDF

Info

Publication number
WO2008037160A1
WO2008037160A1 PCT/CN2007/001682 CN2007001682W WO2008037160A1 WO 2008037160 A1 WO2008037160 A1 WO 2008037160A1 CN 2007001682 W CN2007001682 W CN 2007001682W WO 2008037160 A1 WO2008037160 A1 WO 2008037160A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
duplexer
radio frequency
antenna
received
Prior art date
Application number
PCT/CN2007/001682
Other languages
French (fr)
Chinese (zh)
Inventor
Yonggan Zhang
Xiang Fang
Xiangjun Zhang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008037160A1 publication Critical patent/WO2008037160A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station

Definitions

  • the present invention relates to the field of communications, and in particular, to a wireless signal receiving system, method, and duplexer. Background technique
  • diversity reception is usually adopted to resist fading.
  • the basic idea of diversity reception is to divide the received signal into multiple independent channels. The signals are not correlated, and then the signals of these different energies are combined according to different rules.
  • the dual antenna utilizes the diversity reception idea to obtain the gain from the diversity, which can improve the sensitivity of the single antenna reception by about 3db, and has anti-fast fading.
  • the dual antenna technology can improve the network performance and increase the uplink capacity. Therefore, dual antenna reception signals are commonly used in actual networks.
  • the dual antenna is the automatic coordination of the two antennas. It is also called antenna diversity. Usually, one antenna is only received, and the other is received again.
  • each sector includes at least 2 carriers, one base station simultaneously carries two carriers.
  • FIG. 1 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 1.
  • the base station includes a baseband processor, a radio frequency unit, and two antennas.
  • the baseband processor is configured to perform modulation, demodulation, encoding and decoding, etc. on the signal received from the radio frequency unit and the data signal to be sent to the radio frequency unit, and the modulation method has orthogonal frequency division multiplexing.
  • OFDM Orthogonal Frequency Division Multiplexing
  • COFDM Coded Orthogonal Frequency Division Multiplexing
  • QPSK Quadrature phase Shift keying
  • QAM Quadrature Amplitude Modulation
  • the coding method has variable coding, adaptive coding, and the like.
  • the radio unit includes a duplexer and a transceiver, wherein
  • the duplexer is used for filtering data and low noise amplification
  • the transceiver is configured to receive the signal sent by the duplexer, and perform filtering, digital frequency conversion, analog signal frequency conversion, etc., and then send the signal to the baseband processor and the baseband processor, and convert the signal into frequency. After processing, it is sent to the duplexer.
  • the ports of the duplexer and transceiver are usually directly connected through RF signal lines.
  • the antenna is used to receive and transmit wireless signals, and the antenna and the duplexer are connected by a feeder.
  • the duplexer of the radio unit needs to connect two single-polarized antennas or one dual-polarized antenna.
  • a single-polarized antenna is a conventional antenna that includes two basic single-polarization cases: vertical polarization and horizontal polarization.
  • the dual-polarized antenna is a new type of antenna technology. It combines the antennas with two polarization directions of +45° and -45° and is orthogonal to each other and works in the duplex mode. Therefore, the most prominent advantage is that it saves a single orientation.
  • the number of antennas of the base station is a conventional antenna that includes two basic single-polarization cases: vertical polarization and horizontal polarization.
  • Both the duplexer and the transceiver support multiple carriers, and each module includes one transmit channel and two receive channels.
  • the dual antenna realizes diversity reception.
  • One transmitting channel and one receiving channel share one channel, which is called a main set channel, and the other receiving channel independently occupies one channel, which is called a diversity channel.
  • One end of the main channel of the duplexer is connected to the main channel of the transceiver, and the other end is connected to the antenna; one end of the diversity channel of the duplexer is connected to the diversity channel of the transceiver, and the other end is connected to the antenna.
  • One end of the main channel of the transceiver is connected to the main channel of the duplexer, and the other end is connected to the baseband processor; one end of the diversity channel of the transceiver is connected to the diversity channel of the duplexer, and the other end is connected to the baseband processor.
  • the baseband processor sends the downlink signal to the radio unit first, and is processed by the radio unit and transmitted through the antenna.
  • the specific process is as follows:
  • the baseband processor first transmits the downlink signal to the main set transmit channel of the transceiver, and the signal is first filtered, frequency converted, digital-to-analog converted, analog signal amplified, and analog signal converted by the transceiver, and then the signal is amplified by the power amplifier.
  • the main set transmit channel of the transceiver is transmitted to the main set transmit channel of the duplexer, and the duplexer filters the received signal and sends it to the antenna through the main set transmit channel.
  • the two carriers together occupy one duplexer and one main set channel.
  • the uplink signal received from the antenna is first sent to the radio unit, processed by the radio unit, and sent to the baseband processor.
  • the specific process is as follows:
  • the uplink signal received from the antenna is divided into two paths, wherein one signal is transmitted to the duplexer through the main set receiving channel of the duplexer, and the duplexer filters and low-noises the received signal and passes through the main set receiving channel.
  • the main set receiving channel transmitted to the transceiver, the transceiver performs signal amplification, frequency conversion, analog-to-digital conversion, filtering, etc.
  • the duplexer receives the signal to the duplexer through the diversity receiving channel of the duplexer, and the duplexer filters and low-noises the received signal and transmits the signal to the diversity receiving channel of the transceiver through the diversity receiving channel, and the transceiver amplifies the signal. After being processed by frequency conversion, analog-to-digital conversion, filtering, etc., it is transmitted to the baseband processor through the diversity receiving channel of the transceiver.
  • the two carriers together occupy one duplexer and one master set channel.
  • the inventors have found that in this scheme, since two carriers share one transceiver and one transceiver includes only one power amplifier, for the downlink signal, two carriers use one transmission channel in common. And a power amplifier, which reduces the downstream power output of each carrier by half, and reduces the downlink signal coverage.
  • the existing scheme of the base station dual antenna reception is as follows:
  • the base station includes two baseband processors, two radio frequency units, and four antennas. That is, the equipment in the two sets of schemes 1 is used.
  • Each device includes a baseband processor, a radio frequency unit and two antennas, each carrying a carrier, each carrier using one transmit channel and one power amplifier.
  • An antenna is connected to the main set channel and the diversity channel of each duplexer.
  • the signal flow direction of each carrier is also the same as the signal flow direction in the first scheme.
  • the existing single antenna non-diversity implements the carrier receiving implementation scheme:
  • FIG. 3 is a schematic structural diagram of a conventional single antenna non-diversity implementation implementation of carrier receiving.
  • the base station includes two baseband processors, two radio frequency units and two antennas, and the existing base station dual antenna receiving. Compared with the second scheme, the two antennas are reduced. Moreover, the transmission channel and the reception are not divided into the main set channel and the diversity channel, but a main set channel is shared, and the main set channel of each duplexer is respectively connected with one antenna. . The flow of the main set signal is the same as the flow of the main set signal in the second scheme of the existing base station dual antenna reception.
  • the wireless signal receiving system of the embodiment of the present invention includes an antenna, at least two radio frequency units using a single antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to receive the antenna The received signal is copied, and the copied signal is sent to the transceivers of the at least two radio frequency units, respectively.
  • Another object of the embodiments of the present invention is to provide a wireless signal receiving method.
  • the wireless signal receiving method of the embodiment of the present invention is applied to an antenna, at least two adopting a single A signal receiving system of a radio frequency unit of an antenna, the radio frequency unit including a duplexer and a transceiver, comprising the following steps:
  • the antenna receives a signal and transmits the received signal to a duplexer of the radio frequency unit; the duplexer of the radio frequency unit copies the signal received by the antenna;
  • the duplexer of the radio frequency unit transmits the copied signals to the transceivers of the at least two radio frequency units, respectively.
  • Another object of embodiments of the present invention is to provide a duplexer.
  • the duplexer of the embodiment of the present invention includes an amplifying module for amplifying the received signal, and the duplexer further includes a signal copying module, configured to copy and output the signal output by the amplifying module.
  • each duplexer since the output signals of the duplexer are copied and the channels are crossed, each duplexer achieves the effect of multiple antennas by using one antenna, thereby reducing the number of antennas and improving The coverage of the uplink signal increases the capacity of the cell.
  • 1 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 1;
  • FIG. 2 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 2;
  • FIG. 3 is a schematic structural diagram of a conventional single-antenna non-diversity implementation implementation of carrier receiving;
  • FIG. 4 is a system structural diagram of a wireless signal receiving system according to an embodiment of the present invention.
  • FIG. 5 is a system structural diagram of a wireless signal receiving system according to Embodiment 1 of the present invention.
  • FIG. 6 is a structural diagram of a duplexer according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method for receiving an antenna according to an embodiment of the present invention.
  • FIG. 8 is a system structural diagram of a wireless signal receiving system according to Embodiment 2 of the present invention. detailed description
  • a wireless signal receiving system includes at least two radio frequency units using a single antenna and Corresponding antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to copy the signal received by the antenna, and send the copied signal to the at least two radio frequencies respectively.
  • the transceiver of the unit includes at least two radio frequency units using a single antenna and Corresponding antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to copy the signal received by the antenna, and send the copied signal to the at least two radio frequencies respectively.
  • the transceiver of the unit includes at least two radio frequency units using a single antenna and Corresponding antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to copy the signal received by the antenna, and send the copied signal to the at least two radio frequencies respectively.
  • the duplexer includes an amplification module and a signal replication module, wherein:
  • An amplifying module configured to amplify the signal received by the antenna, and send the amplified signal to the signal copying module;
  • a signal copying module configured to copy the received signals and send them to the transceivers of the at least two radio frequency units respectively.
  • the duplexer further includes a filtering module for filtering the signal and transmitting the signal to the amplifying module.
  • the radio frequency unit may be two or more. If four radio frequency units are used, four radio frequency units may share two dual-polarized antennas, and when there are more than four, such four-body antennas may be used.
  • FIG. 5 is a system structural diagram of a wireless signal receiving system according to Embodiment 1 of the present invention.
  • the wireless signal receiving system according to Embodiment 1 of the present invention is described by taking two radio frequency units as an example.
  • the wireless signal receiving system of the first embodiment of the present invention includes two radio frequency units and two antennas, each of which includes a duplexer and a transceiver, wherein the dual The device includes an amplification module, which is different from the existing wireless signal receiving system in that the duplexer further includes a signal copying module for receiving a signal output by the amplifying module, and copying the signal into two identical channels. And transmitting, by the duplexer, the at least two signals to the transceiver of the radio unit of the duplexer and the transceiver of the other radio unit.
  • two radio frequency units are taken as an example, and two or more radio frequency units may be used. If there are four carriers, four radio units are required to implement one sector * 4 carrier configuration. When multiple carriers are used, multiple radio units are required to implement multiple carrier configurations.
  • the radio frequency unit is a radio frequency unit inside the same base station.
  • Each duplexer and transceiver includes a transmit channel TX and two receive channels RXA, RXB, wherein the transmit channel TX and a receive channel RXA share a channel, called the master set.
  • another receiving channel RXB occupies one channel independently, which is called a diversity channel.
  • the duplexer includes at least two outputs, one connected to the input of the main set channel of the transceiver of the radio frequency unit, and the other connected to the input of the main set channel of the transceiver of the other radio frequency unit.
  • the duplexer is an active module.
  • the two RF signals copied by the signal replication module are copied after the amplified signal, and the attenuation caused has no effect on the signal.
  • the input signal since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, and the effect of dual antenna reception is realized by a single antenna.
  • the transceiver is composed of a power amplifier, a transmitting channel and a receiving channel, and is configured to receive a signal sent by the duplexer, send the signal to the baseband processor, and receive the signal sent by the baseband processor, and send the signal to the double Work tool.
  • each duplexer's main set channel RXA/TX (R means receiving, TX means transmitting) is connected to the antenna, and the output end is divided into two output terminals RXA0 and RXA1 through the signal copying module, wherein one output terminal RXA0 Connected to the input of the main set channel RXA/TX of the transceiver of the radio unit, and the other output RXA1 is connected to the input of the diversity channel RXB of the other radio unit; the output of the main set channel RXA/TX of the transceiver The output of the diversity channel RXB is connected to the baseband processor.
  • Each radio unit can carry one carrier or more carriers.
  • the antenna may be a single-polarized antenna or a dual-polarized antenna.
  • the antenna and the RF unit are connected by a feeder.
  • the uplink and downlink signal flow of each carrier is as follows:
  • the downlink signal of the carrier sent from the baseband processor is first sent to the transmitting channel TX of the transceiver, and the received signal is first filtered, frequency converted, digital-to-analog converted, analog signal amplified, analog signal frequency-converted by the transceiver, and then After the signal is amplified by the power amplifier, it is transmitted to the transmitting channel TX of the duplexer through the transmitting channel TX of the transceiver, and the duplexer filters the received signal and sends it to the antenna through the main set transmitting channel TX, and transmits the signal through the antenna. .
  • the downstream signal does not need to go through the signal replication module.
  • the uplink signal of the carrier received from the antenna is first sent to the filtering module of the duplexer of the radio frequency unit carrying the carrier. After filtering the out-of-band noise, the filtering module sends the signal to the amplification module of the duplexer, and the amplification module amplifies the signal. After the signal is copied to the duplexer, the signal replication module copies the signal into two signals, wherein one signal is sent to the receiving channel RXA of the transceiver carrying the carrier radio unit through the output RXA0 of the main set receiving channel.
  • another signal is sent to the input end of the receiving channel RXB of the transceiver of the radio frequency unit carrying the other carrier through the output terminal RXA1 of the main set receiving channel; the transceiver amplifies, frequency converts, analog-digital conversion, and filters the uplink signal After processing, it is sent to the baseband processor.
  • Fig. 6 is a structural diagram of a duplexer in an embodiment of the present invention.
  • the duplexer of the embodiment of the present invention includes a filtering module and an amplifying module, which is different from the existing duplexer in that the duplexer further includes a signal copying module for receiving antennas.
  • the uplink signal is transmitted, the signal output from the amplification module is received, and the signal is copied and transmitted to the outside.
  • the following is a copy of the two signals, and the copied signals are output to the transceiver 1 and the transceiver 2 as an example to illustrate the signal flow of the duplexer.
  • the duplexer After receiving the signal sent by the antenna, the duplexer first sends the signal to the filtering module.
  • the filtering module may be a cavity filter or a dielectric filter. After filtering the out-of-band noise, the filtering module sends the signal to the amplification module. After the signal is amplified to an appropriate level by the amplification module, the amplification module amplifies the signal and sends it to the signal replication module.
  • the signal copy module copies the signal into two signals, each signal is the same as the original signal, and then separately outputs the two signals to different transceivers. When the duplexer receives the downlink signal sent by the transceiver 2, the duplexer does not pass the signal replica module.
  • the antenna receiving method of the embodiment of the present invention is applied to a signal receiving system including an antenna and at least two radio frequency units, the radio frequency unit includes a duplexer and a transceiver, and FIG. 7 is a flowchart of an antenna receiving method according to an embodiment of the present invention. As shown in FIG. 7, the antenna receiving method of the embodiment of the present invention specifically includes the following steps:
  • the antenna receives the signal and transmits the received signal to the duplexer of the radio unit.
  • the duplexer of the radio frequency unit copies the signal received by the antenna.
  • the duplexer of the radio frequency unit filters and amplifies the signal received by the antenna, and then performs replication.
  • the duplexer of the radio frequency unit transmits the copied signals to the transceivers of the at least two radio frequency units, respectively.
  • the copied signal is sent to the transceiver of the radio unit to which the duplexer belongs, and the copied other signals are sent to other duplexers.
  • Transceiver of the radio unit Since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, and the effect of multi-antenna reception is realized by a single antenna. This reduces the number of antennas, feeders, jumpers, connectors, reduces cost and effort, increases uplink sensitivity, uplink coverage, and capacity.
  • Step 103) The subsequent processing is the same as the prior art: the transceiver performs amplification, frequency conversion, analog-to-digital conversion, filtering, etc. on the received signal, and then sends the signal to the baseband processing unit; the baseband processor receives the uplink sent by the transceiver. After the signal is processed, the signal is modulated, demodulated, coded, etc., and then sent to the base station controller, and sent by the base station controller to the mobile switching center for processing. Access to the mobile communication core network under the control of the mobile switching center.
  • a wireless signal receiving system includes an antenna and at least two base stations, each of which includes a single antenna.
  • RF unit includes a duplexer and a transceiver.
  • the duplexer further includes a signal copying module, and the signal copying module is configured to copy the uplink signal received by the duplexer.
  • the wireless signal receiving system of the second embodiment of the present invention is different from the wireless signal receiving system of the first embodiment of the present invention in that the radio frequency unit is a radio frequency unit of the same sector of different carrier frequencies of different base stations.
  • the following two base stations are taken as an example to illustrate the flow of signals:
  • the duplexers of the two base stations amplify and copy the uplink signals, and then divide them into two signals, one signal is used as the input signal of the transceiver of the base station, and the other channel is used. The signal is then used as the input to the receive signal of the transceiver of the other base station.
  • the radio frequency portion of the same sector with different carrier frequencies of the two base stations is interconnected by the wireless signal receiving system of the second embodiment of the present invention by using the channel crossing technology, thereby realizing the two base stations.
  • the same sector uses the same antenna to achieve coverage of multiple carriers in the same sector.
  • the two base stations may share a pair of dual-polarized antennas, or each may use a pair of single-polarized antennas.
  • the antenna receiving method of the second embodiment of the present invention is different from the antenna receiving method of the first embodiment of the present invention in that 103) is changed to the following steps:
  • the duplexer of the radio unit transmits the copied signal to the transceiver of the radio unit of the different base station.
  • the duplexer copies the received signal into two signals, wherein one signal is sent to the transceiver of the base station to which the duplexer belongs, and the other signal is sent to the transceiver of the base station to which the other duplexer belongs. Since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, which realizes the effect that the same sector of the two base stations uses the same pair of dual-polarized antennas.
  • the radio frequency part of the same sector with different carrier frequencies of the two base stations is interconnected by the method of the embodiment of the present invention by using the channel crossover technology, thereby realizing the same of the two base stations.
  • the sector uses the same pair of dual-polarized antennas to achieve the same coverage and reception performance as when a single base station uses a pair of dual-polarized antennas alone, and the capacity is doubled to achieve coverage of multiple carriers in the same sector.

Abstract

A radio receiving system includes antennae and at least two radio frequency units using single antenna. The radio frequency unit includes a duplexer and a transceiver. The duplexer of the radio frequency is used to copy the signal received by the antenna, and transmit the copied signal to at least two transceivers of the radio frequency units respectively. The radio receiving system, its method and the duplexer use data-crossing technology to copy received signal and cross it, which has the effect as multi-antenna although each duplexer uses single antenna to receive signal.

Description

无线信号接收***、 方法以及双工器  Wireless signal receiving system, method and duplexer
技术领域 Technical field
本发明涉及通信领域， 特别是涉及一种无线信号接收***、 方法以及双 工器。 背景技术  The present invention relates to the field of communications, and in particular, to a wireless signal receiving system, method, and duplexer. Background technique
在移动通讯中， 基站与移动台之间的通信不仅通过直达路径， 而且还通 过许多其他路径完成。 因为直达路径被建筑物或其他物体所阻碍， 大量传播 路径的存在就产生了所谓的多径现象， 其合成波的幅度和相位随移动台的运 动产生很大的起伏变化。  In mobile communications, communication between the base station and the mobile station is accomplished not only through the direct path, but also through many other paths. Since the direct path is obstructed by buildings or other objects, the existence of a large number of propagation paths produces a so-called multipath phenomenon in which the amplitude and phase of the resultant wave vary greatly with the motion of the mobile station.
为了减少多径现象对基站与移动台之间的通信造成的影响， 在实际的移 动通讯网络中， 通常采用分集接收来抗衰落， 分集接收的基本思想是将接收 到的信号分成多路的独立不相关信号， 然后将这些不同能量的信号按不同的 规则合并起来。 双天线利用分集接收思想， 从分集中获得增益， 比单天线接 收的灵敏度可以提高 3db左右， 具有抗快衰落性， 对基站来说， 采用双天线 技术可以很好的提高网络性能， 增加上行容量， 因此， 在实际的网络中普遍 采用了双天线接收信号。  In order to reduce the impact of multipath phenomenon on the communication between the base station and the mobile station, in the actual mobile communication network, diversity reception is usually adopted to resist fading. The basic idea of diversity reception is to divide the received signal into multiple independent channels. The signals are not correlated, and then the signals of these different energies are combined according to different rules. The dual antenna utilizes the diversity reception idea to obtain the gain from the diversity, which can improve the sensitivity of the single antenna reception by about 3db, and has anti-fast fading. For the base station, the dual antenna technology can improve the network performance and increase the uplink capacity. Therefore, dual antenna reception signals are commonly used in actual networks.
双天线是两根天线的自动协调， 也称天线分集， 通常， 一根天线只收， 另外一根又收又发。  The dual antenna is the automatic coordination of the two antennas. It is also called antenna diversity. Usually, one antenna is only received, and the other is received again.
现有的基站双天线接收的实现方案主要有以下两种：  There are two main implementation schemes for the existing base station dual antenna reception:
现有的基站双天线接收的实现方案一：  The implementation scheme of the existing base station dual antenna reception is as follows:
为了实现 1扇区 *2载波的接收分集， 由于每个扇区至少包括 2个载波，因 此， 一个基站同时承载两个载波。  In order to achieve reception diversity of 1 sector * 2 carrier, since each sector includes at least 2 carriers, one base station simultaneously carries two carriers.
图 1为现有的双天线分集接收方案一的结构示意图， 如图 1所示， 基站包括一个基带处理器、 一个射频单元和两根天线。  FIG. 1 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 1. As shown in FIG. 1, the base station includes a baseband processor, a radio frequency unit, and two antennas.
其中， 基带处理器用于对从射频单元接收到的信号和需要发送到射频单 元的数据信号进行调制解调、 编码解码等处理， 调制方式有正交频分复用 ( Orthogonal Frequency Division Multiplexing, OFDM )> 编码正交频分复用 ( Coded Orthogonal Frequency Division Multiplexing , COFDM )> 正交相移键 控 ( Quadrature phase Shift keying, QPSK )、 正交调幅 ( Quadrature Amplitude Modulation ， QAM )等， 编码方式有可变编码， 自适应编码等。 The baseband processor is configured to perform modulation, demodulation, encoding and decoding, etc. on the signal received from the radio frequency unit and the data signal to be sent to the radio frequency unit, and the modulation method has orthogonal frequency division multiplexing. (Orthogonal Frequency Division Multiplexing, OFDM) > Coded Orthogonal Frequency Division Multiplexing (COFDM) > Quadrature phase Shift keying (QPSK), Quadrature Amplitude Modulation (QAM) ), etc., the coding method has variable coding, adaptive coding, and the like.
射频单元包括双工器和收发器， 其中，  The radio unit includes a duplexer and a transceiver, wherein
双工器用于对数据进行滤波和低噪声放大等处理；  The duplexer is used for filtering data and low noise amplification;
收发器用于接收双工器发送来的信号， 并把该信号进行滤波、 数字变频、 模拟信号变频等处理后， 发送到基带处理器以及接收基带处理器发送来的信 号， 并把该信号进行变频等处理后发送到双工器。  The transceiver is configured to receive the signal sent by the duplexer, and perform filtering, digital frequency conversion, analog signal frequency conversion, etc., and then send the signal to the baseband processor and the baseband processor, and convert the signal into frequency. After processing, it is sent to the duplexer.
双工器和收发器的端口通常是通过射频信号线直接连接的。  The ports of the duplexer and transceiver are usually directly connected through RF signal lines.
天线用于接收和发送无线信号， 天线与双工器之间通过馈线相连接。 为了实现双天线接收， 射频单元的双工器需要接两根单极化天线或一根 双极化天线。  The antenna is used to receive and transmit wireless signals, and the antenna and the duplexer are connected by a feeder. In order to achieve dual antenna reception, the duplexer of the radio unit needs to connect two single-polarized antennas or one dual-polarized antenna.
单极化天线为传统天线， 包括两种基本的单极化的情况： 垂直极化和水 平极化。 双极化天线是一种新型天线技术， 组合了 +45°和 -45°两副极化方向相 互正交的天线并同时工作在收发双工模式下， 因此其最突出的优点是节省单 个定向基站的天线数量。  A single-polarized antenna is a conventional antenna that includes two basic single-polarization cases: vertical polarization and horizontal polarization. The dual-polarized antenna is a new type of antenna technology. It combines the antennas with two polarization directions of +45° and -45° and is orthogonal to each other and works in the duplex mode. Therefore, the most prominent advantage is that it saves a single orientation. The number of antennas of the base station.
双工器和收发器都支持多载波， 每个模块包括一个发射通道和两个接收 通道。 双天线实现分集接收， 一个发射通道和一个接收通道共用一个通道， 称为主集通道， 另外一个接收通道独立占用一个通道， 称为分集通道。  Both the duplexer and the transceiver support multiple carriers, and each module includes one transmit channel and two receive channels. The dual antenna realizes diversity reception. One transmitting channel and one receiving channel share one channel, which is called a main set channel, and the other receiving channel independently occupies one channel, which is called a diversity channel.
双工器的主集通道一端和收发器的主集通道相连， 另一端和天线相连； 双工器的分集通道一端和收发器的分集通道相连， 另一端和天线相连。  One end of the main channel of the duplexer is connected to the main channel of the transceiver, and the other end is connected to the antenna; one end of the diversity channel of the duplexer is connected to the diversity channel of the transceiver, and the other end is connected to the antenna.
收发器的主集通道一端和双工器的主集通道相连， 另一端和基带处理器 相连； 收发器的分集通道一端和双工器的分集通道相连， 另一端和基带处理 器相连。  One end of the main channel of the transceiver is connected to the main channel of the duplexer, and the other end is connected to the baseband processor; one end of the diversity channel of the transceiver is connected to the diversity channel of the duplexer, and the other end is connected to the baseband processor.
基带处理器将下行信号先发送到射频单元， 由射频单元处理后通过天线 发射出去， 具体过程如下： . 基带处理器将下行信号先发送到收发器的主集发射通道， 由收发器对该 信号先进行滤波、 变频、 数模转换、 模拟信号放大、 模拟信号变频， 然后对 该信号通过功率放大器放大后， 由收发器的主集发射通道传送到双工器的主 集发射通道， 双工器将收到的信号进行滤波后通过主集发射通道发送到天线。 两个载波共同占用一个双工器和一个主集通道。 The baseband processor sends the downlink signal to the radio unit first, and is processed by the radio unit and transmitted through the antenna. The specific process is as follows: The baseband processor first transmits the downlink signal to the main set transmit channel of the transceiver, and the signal is first filtered, frequency converted, digital-to-analog converted, analog signal amplified, and analog signal converted by the transceiver, and then the signal is amplified by the power amplifier. The main set transmit channel of the transceiver is transmitted to the main set transmit channel of the duplexer, and the duplexer filters the received signal and sends it to the antenna through the main set transmit channel. The two carriers together occupy one duplexer and one main set channel.
从天线接收的上行信号先发送到射频单元， 由射频单元处理后发送到基 带处理器， 具体过程如下：  The uplink signal received from the antenna is first sent to the radio unit, processed by the radio unit, and sent to the baseband processor. The specific process is as follows:
从天线接收的上行信号分为两路， 其中， 一路信号通过双工器的主集接 收通道传送到双工器， 双工器将收到的信号进行滤波和低噪放大后通过主集 接收通道传送到收发器的主集接收通道， 收发器对收到的信号进行信号放大、 变频， 模数转换、 滤波等处理后该信号通过收发器的主集接收通道传送到基 带处理器； 另一路信号通过双工器的分集接收通道传送到双工器， 双工器将 收到的信号进行滤波和低噪放大后通过分集接收通道传送到收发器的分集接 收通道， 收发器对该信号进行信号放大、 变频， 模数转换、 滤波等处理后， 通过收发器的分集接收通道传送到基带处理器。 两个载波共同占用一个双工 器， 和一个主集通道。  The uplink signal received from the antenna is divided into two paths, wherein one signal is transmitted to the duplexer through the main set receiving channel of the duplexer, and the duplexer filters and low-noises the received signal and passes through the main set receiving channel. The main set receiving channel transmitted to the transceiver, the transceiver performs signal amplification, frequency conversion, analog-to-digital conversion, filtering, etc. on the received signal, and the signal is transmitted to the baseband processor through the main receiver receiving channel of the transceiver; the other signal The duplexer receives the signal to the duplexer through the diversity receiving channel of the duplexer, and the duplexer filters and low-noises the received signal and transmits the signal to the diversity receiving channel of the transceiver through the diversity receiving channel, and the transceiver amplifies the signal. After being processed by frequency conversion, analog-to-digital conversion, filtering, etc., it is transmitted to the baseband processor through the diversity receiving channel of the transceiver. The two carriers together occupy one duplexer and one master set channel.
在实现本发明过程中， 发明人发现在该方案中， 由于两个载波共享一个 收发器， 而一个收发器只包括一个功率放大器， 因此， 对于下行信号来说， 两个载波共同使用一个发射通道和一个功率放大器， 这就使每个载波的下行 功率输出减半， 降^ ^了下行信号覆盖范围。  In the process of implementing the present invention, the inventors have found that in this scheme, since two carriers share one transceiver and one transceiver includes only one power amplifier, for the downlink signal, two carriers use one transmission channel in common. And a power amplifier, which reduces the downstream power output of each carrier by half, and reduces the downlink signal coverage.
现有的基站双天线接收的方案二：  The existing scheme of the base station dual antenna reception is as follows:
图 2为现有的双天线分集接收方案二的结构示意图， 如图 2所示， 基站 包括两个基带处理器， 两个射频单元和四根天线。 也就是使用了两套方案一 中的设备。  2 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 2. As shown in FIG. 2, the base station includes two baseband processors, two radio frequency units, and four antennas. That is, the equipment in the two sets of schemes 1 is used.
每一套设备包括一个基带处理器， 一个射频单元和两根天线， 分别承载 一个载波， 每个载波分别使用一个发射通道和一个功率放大器。 每个双工器 的主集通道和分集通道都连接一根天线。 各载波的信号流向也与方案一中的信号流向相同。 Each device includes a baseband processor, a radio frequency unit and two antennas, each carrying a carrier, each carrier using one transmit channel and one power amplifier. An antenna is connected to the main set channel and the diversity channel of each duplexer. The signal flow direction of each carrier is also the same as the signal flow direction in the first scheme.
该方案虽然解决了方案一中两个载波共同使用一个发射通道和一个功率 放大器， 使每个载波的下行功率输出减半的问题， 但是， 对每一载波多安装 了一根天线和一根馈线， 增加了成本和施工难度， 占用了过多的空间， 在实 际的工程安装中， 天线和馈线一般都安装在铁塔上， 而铁塔造价高， 空间位 置比较紧张， 并常和微波等多个设备共用， 不能安装过多的天线和馈线。 因 此， 通常采用单天线不分集实现载波接收。  Although this solution solves the problem that the two carriers use one transmission channel and one power amplifier together in scheme 1, the downlink power output of each carrier is halved, but one antenna and one feeder are installed for each carrier. Increased cost and construction difficulty, taking up too much space. In actual engineering installation, antennas and feeders are generally installed on the tower, and the tower is expensive, the space is tight, and often with microwaves and other equipment. Shared, too many antennas and feeders cannot be installed. Therefore, carrier reception is usually achieved by single antenna non-diversity.
现有的单天线不分集实现载波接收实现方案：  The existing single antenna non-diversity implements the carrier receiving implementation scheme:
图 3为现有的单天线不分集实现载波接收实现方案的结构示意图，如图 3 所示， 基站包括两个基带处理器， 两个射频单元和两根天线， 与现有的基站 双天线接收的方案二相比， 减少了两根天线， 而且， 发射通道和接收不划分 为主集通道和分集通道， 而是共用一个主集通道， 每个双工器的主集通道分 别连接一根天线。 主集信号的流向与现有的基站双天线接收的方案二中的主 集信号的流向相同。  FIG. 3 is a schematic structural diagram of a conventional single antenna non-diversity implementation implementation of carrier receiving. As shown in FIG. 3, the base station includes two baseband processors, two radio frequency units and two antennas, and the existing base station dual antenna receiving. Compared with the second scheme, the two antennas are reduced. Moreover, the transmission channel and the reception are not divided into the main set channel and the diversity channel, but a main set channel is shared, and the main set channel of each duplexer is respectively connected with one antenna. . The flow of the main set signal is the same as the flow of the main set signal in the second scheme of the existing base station dual antenna reception.
在实现本发明过程中， 发明人发现在该方案中， 由于采用单根单极化天 线， 对于上行信号来说， 只有一个接收通道， 降低了上行灵敏度， 同时也降 低了上行覆盖和容量。 发明内容  In the process of implementing the present invention, the inventors have found that in this scheme, since a single single-polarized antenna is used, there is only one receiving channel for the uplink signal, which reduces the uplink sensitivity and also reduces the uplink coverage and capacity. Summary of the invention
本发明实施例的一个目的是提供一种无线信号接收***， 使得每个双工 器用单天线接收实现了多天线的效果。  It is an object of embodiments of the present invention to provide a wireless signal receiving system such that each duplexer achieves the effect of multiple antennas with a single antenna.
本发明实施例的无线信号接收***， 包括天线， 至少两个采用单天线的 射频单元， 所述射频单元包括双工器和收发器， 所述射频单元的双工器用于 将所述天线所接收到的信号进行复制， 并将复制后的信号分别发送给所述至 少两个射频单元的收发器。  The wireless signal receiving system of the embodiment of the present invention includes an antenna, at least two radio frequency units using a single antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to receive the antenna The received signal is copied, and the copied signal is sent to the transceivers of the at least two radio frequency units, respectively.
本发明实施例的另一目的在于， 提供一种无线信号接收方法。  Another object of the embodiments of the present invention is to provide a wireless signal receiving method.
本发明实施例的无线信号接收方法， 应用于包括天线、 至少两个采用单 天线的射频单元的信号接收***， 所述射频单元包括一个双工器和一个收发 器， 包括以下步骤： The wireless signal receiving method of the embodiment of the present invention is applied to an antenna, at least two adopting a single A signal receiving system of a radio frequency unit of an antenna, the radio frequency unit including a duplexer and a transceiver, comprising the following steps:
所述天线接收信号， 并将接收到的信号发送到所述射频单元的双工器； 所述射频单元的双工器将天线所接收到的信号进行复制；  The antenna receives a signal and transmits the received signal to a duplexer of the radio frequency unit; the duplexer of the radio frequency unit copies the signal received by the antenna;
所述射频单元的双工器将复制后的信号分别发送给所述至少两个射频单 元的收发器。  The duplexer of the radio frequency unit transmits the copied signals to the transceivers of the at least two radio frequency units, respectively.
本发明实施例的另一目的在于， 提供一种双工器。  Another object of embodiments of the present invention is to provide a duplexer.
本发明实施例的双工器包括用于将接收到的信号进行放大的放大模块， 所述双工器还包括信号复制模块， 用于将所述放大模块输出的信号进行复制 后输出。  The duplexer of the embodiment of the present invention includes an amplifying module for amplifying the received signal, and the duplexer further includes a signal copying module, configured to copy and output the signal output by the amplifying module.
采用本发明实施例提供的技术方案， 由于通过将双工器的输出信号进行 复制和通道交叉， 使得每个双工器用单天线接收实现了多天线的效果， 从而 减少了天线的数目， 并提高了上行信号的覆盖范围， 提高了小区的容量。 附图说明  According to the technical solution provided by the embodiment of the present invention, since the output signals of the duplexer are copied and the channels are crossed, each duplexer achieves the effect of multiple antennas by using one antenna, thereby reducing the number of antennas and improving The coverage of the uplink signal increases the capacity of the cell. DRAWINGS
图 1为现有的双天线分集接收方案一的结构示意图；  1 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 1;
图 2为现有的双天线分集接收方案二的结构示意图；  2 is a schematic structural diagram of a conventional dual antenna diversity receiving scheme 2;
图 3为现有的单天线不分集实现载波接收实现方案的结构示意图； 图 4为本发明实施例的无线信号接收***的***结构图；  3 is a schematic structural diagram of a conventional single-antenna non-diversity implementation implementation of carrier receiving; FIG. 4 is a system structural diagram of a wireless signal receiving system according to an embodiment of the present invention;
图 5为本发明实施例一的无线信号接收***的***结构图；  FIG. 5 is a system structural diagram of a wireless signal receiving system according to Embodiment 1 of the present invention; FIG.
图 6为本发明实施例的双工器的结构图；  6 is a structural diagram of a duplexer according to an embodiment of the present invention;
图 7为本发明实施例天线接收方法的流程图；  7 is a flowchart of a method for receiving an antenna according to an embodiment of the present invention;
图 8为本发明实施例二的无线信号接收***的***结构图。 具体实施方式  FIG. 8 is a system structural diagram of a wireless signal receiving system according to Embodiment 2 of the present invention. detailed description
本发明实施例中， 利用通道交叉技术， 用单天线实现多天线分集接收。 图 4为本发明实施例的无线信号接收***的***结构图， 如图 4所示， 本发明实施例的无线信号接收***， 包括至少两个采用单天线的射频单元和 相应的天线， 所述射频单元包括双工器和收发器， 所述射频单元的双工器用 于将天线所接收到的信号进行复制， 并将复制后的信号分别发送给所述至少 两个射频单元的收发器。 In the embodiment of the present invention, multi-antenna diversity reception is realized by a single antenna by using a channel crossing technique. 4 is a system structural diagram of a wireless signal receiving system according to an embodiment of the present invention. As shown in FIG. 4, a wireless signal receiving system according to an embodiment of the present invention includes at least two radio frequency units using a single antenna and Corresponding antenna, the radio frequency unit includes a duplexer and a transceiver, and the duplexer of the radio frequency unit is configured to copy the signal received by the antenna, and send the copied signal to the at least two radio frequencies respectively. The transceiver of the unit.
所述双工器中包括放大模块、 信号复制模块， 其中：  The duplexer includes an amplification module and a signal replication module, wherein:
放大模块， 用于将天线接收到的信号进行放大， 并将放大后的信号发送 给信号复制模块；  An amplifying module, configured to amplify the signal received by the antenna, and send the amplified signal to the signal copying module;
信号复制模块， 用于将接收到的信号进行复制， 并将其分别发送到所述 至少两个射频单元的收发器。  And a signal copying module, configured to copy the received signals and send them to the transceivers of the at least two radio frequency units respectively.
所述双工器还包括滤波模块， 用于对信号滤波， 并发送到所述放大模块。 所述射频单元可以是两个， 也可以是两个以上， 如果是四个射频单元时， 四个射频单元可以共用两副双极化天线， 大于四个时以此类 4体。  The duplexer further includes a filtering module for filtering the signal and transmitting the signal to the amplifying module. The radio frequency unit may be two or more. If four radio frequency units are used, four radio frequency units may share two dual-polarized antennas, and when there are more than four, such four-body antennas may be used.
下面结合附图对本发明实施例作进一步详细的说明。  The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.
实施例一  Embodiment 1
图 5 为本发明实施例一的无线信号接收***的***结构图， 本发明实施 例一的无线信号接收***以两个射频单元为例进行说明。 如图 5 所示， 本发 明实施例一的无线信号接收***， 包括两个采用单天线的射频单元和两根天 线， 每个射频单元包括一个双工器和一个收发器， 其中， 所述双工器包括放 大模块， 与现有的无线信号接收***不同之处在于， 所述双工器还包括信号 复制模块， 用于接收放大模块输出的信号， 并将所述信号复制为两路相同的 信号， 由双工器将所述至少两路信号分别发送到双工器所属射频单元的收发 器以及其他射频单元的收发器。  FIG. 5 is a system structural diagram of a wireless signal receiving system according to Embodiment 1 of the present invention. The wireless signal receiving system according to Embodiment 1 of the present invention is described by taking two radio frequency units as an example. As shown in FIG. 5, the wireless signal receiving system of the first embodiment of the present invention includes two radio frequency units and two antennas, each of which includes a duplexer and a transceiver, wherein the dual The device includes an amplification module, which is different from the existing wireless signal receiving system in that the duplexer further includes a signal copying module for receiving a signal output by the amplifying module, and copying the signal into two identical channels. And transmitting, by the duplexer, the at least two signals to the transceiver of the radio unit of the duplexer and the transceiver of the other radio unit.
本实施例是以两个射频单元为例进行说明， 也可以是两个以上的射频单 元。 如果是四个载波时， 需要四个射频单元， 实现 1扇区 * 4载波配置， 多个 载波时， 需要多个射频单元实现多个载波配置。  In this embodiment, two radio frequency units are taken as an example, and two or more radio frequency units may be used. If there are four carriers, four radio units are required to implement one sector * 4 carrier configuration. When multiple carriers are used, multiple radio units are required to implement multiple carrier configurations.
所述射频单元为同一基站内部的射频单元。  The radio frequency unit is a radio frequency unit inside the same base station.
每个双工器和收发器都包括一个发射通道 TX 和两个接收通道 RXA、 RXB, 其中， 发射通道 TX和一个接收通道 RXA共用一个通道， 称为主集通 道， 另外一个接收通道 RXB独立占用一个通道， 称为分集通道。 Each duplexer and transceiver includes a transmit channel TX and two receive channels RXA, RXB, wherein the transmit channel TX and a receive channel RXA share a channel, called the master set. In addition, another receiving channel RXB occupies one channel independently, which is called a diversity channel.
双工器包括至少两个输出端， 一个与本射频单元的收发器的主集通道的 输入端相连， 另一个与其他射频单元的收发器的主集通道的输入端相连。  The duplexer includes at least two outputs, one connected to the input of the main set channel of the transceiver of the radio frequency unit, and the other connected to the input of the main set channel of the transceiver of the other radio frequency unit.
双工器是有源模块， 信号复制模块复制的两路射频信号为放大以后的信 号复制， 引起的衰减对信号没有什么影响。 同时， 由于对输入信号进行了复 制， 使得每一个收发器的主集通道和分集通道都有输入信号， 用单天线实现 了双天线接收的效果。  The duplexer is an active module. The two RF signals copied by the signal replication module are copied after the amplified signal, and the attenuation caused has no effect on the signal. At the same time, since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, and the effect of dual antenna reception is realized by a single antenna.
收发器由功率放大器， 发射通道和接收通道组成， 用于接收双工器发送 来的信号， 并把该信号发送到基带处理器以及接收基带处理器发送来的信号， 并把该信号发送到双工器。  The transceiver is composed of a power amplifier, a transmitting channel and a receiving channel, and is configured to receive a signal sent by the duplexer, send the signal to the baseband processor, and receive the signal sent by the baseband processor, and send the signal to the double Work tool.
具体连接关系如下：  The specific connection relationship is as follows:
每个双工器的主集通道 RXA/TX ( R 表示接收， TX表示发送 ) 的输入 端与天线相连， 输出端通过信号复制模块分为两个输出端 RXA0和 RXA1 , 其中， 一个输出端 RXA0与本射频单元的收发器的主集通道 RXA/TX的输入 端相连， 另一输出端 RXA1与其他射频单元的分集通道 RXB的输入端相连； 收发器的主集通道 RXA/TX的输出端和分集通道 RXB的输出端与基带处理器 相连。  The input end of each duplexer's main set channel RXA/TX (R means receiving, TX means transmitting) is connected to the antenna, and the output end is divided into two output terminals RXA0 and RXA1 through the signal copying module, wherein one output terminal RXA0 Connected to the input of the main set channel RXA/TX of the transceiver of the radio unit, and the other output RXA1 is connected to the input of the diversity channel RXB of the other radio unit; the output of the main set channel RXA/TX of the transceiver The output of the diversity channel RXB is connected to the baseband processor.
每个射频单元可以承载一个载波， 也可以承载更多的载波。  Each radio unit can carry one carrier or more carriers.
所述天线可以是单极化天线， 也可以是双极化天线。 天线与射频单元之 间通过馈线相连接。  The antenna may be a single-polarized antenna or a dual-polarized antenna. The antenna and the RF unit are connected by a feeder.
每个载波的上下行的信号流向如下：  The uplink and downlink signal flow of each carrier is as follows:
从基带处理器发出的载波的下行信号， 首先发送到收发器的发射通道 TX, 由收发器对收到的信号先进行滤波、 变频、 数模转换、 模拟信号放大、 模拟信号变频， 然后对该信号通过功率放大器放大后， 通过收发器的发射通 道 TX传送到双工器的发射通道 TX, 双工器将收到的信号进行滤波后通过主 集发射通道 TX发送到天线，通过天线进行信号发射。 下行信号不需要经过信 号复制模块。 从天线接收的载波的上行信号首先发送到承载该载波的射频单元的双工 器的滤波模块， 滤波模块对信号滤除带外噪声后， 发送到双工器的放大模块， 放大模块将信号放大后发送到双工器的信号复制模块， 信号复制模块将信号 复制为两路信号， 其中， 一路信号通过主集接收通道的输出端 RXA0发送到 承载该载波射频单元的收发器的接收通道 RXA的输入端， 另一路信号通过主 集接收通道的输出端 RXA1发送到承载另一载波的射频单元的收发器的接收 通道 RXB的输入端； 收发器对上行信号进行放大、 变频、 模数转换、 滤波等 处理后， 发送到基带处理器。 The downlink signal of the carrier sent from the baseband processor is first sent to the transmitting channel TX of the transceiver, and the received signal is first filtered, frequency converted, digital-to-analog converted, analog signal amplified, analog signal frequency-converted by the transceiver, and then After the signal is amplified by the power amplifier, it is transmitted to the transmitting channel TX of the duplexer through the transmitting channel TX of the transceiver, and the duplexer filters the received signal and sends it to the antenna through the main set transmitting channel TX, and transmits the signal through the antenna. . The downstream signal does not need to go through the signal replication module. The uplink signal of the carrier received from the antenna is first sent to the filtering module of the duplexer of the radio frequency unit carrying the carrier. After filtering the out-of-band noise, the filtering module sends the signal to the amplification module of the duplexer, and the amplification module amplifies the signal. After the signal is copied to the duplexer, the signal replication module copies the signal into two signals, wherein one signal is sent to the receiving channel RXA of the transceiver carrying the carrier radio unit through the output RXA0 of the main set receiving channel. At the input end, another signal is sent to the input end of the receiving channel RXB of the transceiver of the radio frequency unit carrying the other carrier through the output terminal RXA1 of the main set receiving channel; the transceiver amplifies, frequency converts, analog-digital conversion, and filters the uplink signal After processing, it is sent to the baseband processor.
图 6为本发明实施例中的双工器的结构图。 如图 6所示， 本发明实施例 的双工器包括滤波模块和放大模块， 与现有的双工器的不同之处在于， 所述 双工器还包括信号复制模块， 用于在接收天线发送来的上行信号时， 接收放 大模块输出的信号， 将该路信号进行复制后发送到外部。  Fig. 6 is a structural diagram of a duplexer in an embodiment of the present invention. As shown in FIG. 6, the duplexer of the embodiment of the present invention includes a filtering module and an amplifying module, which is different from the existing duplexer in that the duplexer further includes a signal copying module for receiving antennas. When the uplink signal is transmitted, the signal output from the amplification module is received, and the signal is copied and transmitted to the outside.
以下以复制为两路信号， 复制后的信号， 分别输出到收发器 1和收发器 2 为例说明所述双工器的信号流向。  The following is a copy of the two signals, and the copied signals are output to the transceiver 1 and the transceiver 2 as an example to illustrate the signal flow of the duplexer.
双工器接收到天线发送来的信号后， 首先， 发送到滤波模块， 所述滤波 模块可以是腔体滤波器或介质滤波器， 滤波模块对信号滤除带外噪声后， 发 送到放大模块， 由放大模块对信号放大至适当电平后， 放大模块将信号放大 后发送到信号复制模块。 信号复制模块将该路信号复制为两路信号， 每路信 号与原信号相同， 然后， 分别将两路信号分别输出到不同的收发器。 而双工 器在接收收发器 2发送来的下行信号时， 不经过所述信号复制模块。  After receiving the signal sent by the antenna, the duplexer first sends the signal to the filtering module. The filtering module may be a cavity filter or a dielectric filter. After filtering the out-of-band noise, the filtering module sends the signal to the amplification module. After the signal is amplified to an appropriate level by the amplification module, the amplification module amplifies the signal and sends it to the signal replication module. The signal copy module copies the signal into two signals, each signal is the same as the original signal, and then separately outputs the two signals to different transceivers. When the duplexer receives the downlink signal sent by the transceiver 2, the duplexer does not pass the signal replica module.
本发明实施例的天线接收方法应用于包括天线、 至少两个射频单元的信 号接收***， 所述射频单元包括一个双工器和一个收发器， 图 7 为本发明实 施例天线接收方法的流程图， 如图 7所示， 本发明实施例的天线接收方法具 体包括以下步骤：  The antenna receiving method of the embodiment of the present invention is applied to a signal receiving system including an antenna and at least two radio frequency units, the radio frequency unit includes a duplexer and a transceiver, and FIG. 7 is a flowchart of an antenna receiving method according to an embodiment of the present invention. As shown in FIG. 7, the antenna receiving method of the embodiment of the present invention specifically includes the following steps:
101 ) 天线接收信号， 并将接收到的信号发送到所述射频单元的双工器。 102 )所述射频单元的双工器将天线所接收到的信号进行复制。  101) The antenna receives the signal and transmits the received signal to the duplexer of the radio unit. 102) The duplexer of the radio frequency unit copies the signal received by the antenna.
复制后的每路信号与原信号相同。 所述射频单元的双工器将天线所接收到的信号进行滤波和放大后， 再进 行复制。 Each signal after copying is the same as the original signal. The duplexer of the radio frequency unit filters and amplifies the signal received by the antenna, and then performs replication.
103 )所述射频单元的双工器将复制后的信号分别发送给所述至少两个射 频单元的收发器。  103) The duplexer of the radio frequency unit transmits the copied signals to the transceivers of the at least two radio frequency units, respectively.
双工器将收到的信号进行复制后， 其中， 将复制后的一路信号发送到该 双工器所属的射频单元的收发器， 将复制后的其他路信号分别发送到其他双 工器所属的射频单元的收发器。 由于对输入信号进行了复制， 使得每一个收 发器的主集通道和分集通道都有输入信号， 用单天线实现了多天线接收的效 果。 从而减少了天线， 馈线， 跳线， 连接器的数目， 降低了成本和工作量， 提高上行灵敏度， 上行覆盖范围以及容量。  After the duplexer copies the received signal, the copied signal is sent to the transceiver of the radio unit to which the duplexer belongs, and the copied other signals are sent to other duplexers. Transceiver of the radio unit. Since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, and the effect of multi-antenna reception is realized by a single antenna. This reduces the number of antennas, feeders, jumpers, connectors, reduces cost and effort, increases uplink sensitivity, uplink coverage, and capacity.
步骤 103)以后的处理与现有技术相同： 收发器将接收到的信号进行放大、 变频， 模数转换、 滤波等处理后， 发送到基带处理单元； 基帶处理器接收到 收发器发送来的上行信号后， 对该信号进行调制解调、 编码解码等处理后， 发送到基站控制器， 由基站控制器发送到移动交换中心进行处理。 在移动交 换中心的控制下接入到移动通信核心网络。  Step 103) The subsequent processing is the same as the prior art: the transceiver performs amplification, frequency conversion, analog-to-digital conversion, filtering, etc. on the received signal, and then sends the signal to the baseband processing unit; the baseband processor receives the uplink sent by the transceiver. After the signal is processed, the signal is modulated, demodulated, coded, etc., and then sent to the base station controller, and sent by the base station controller to the mobile switching center for processing. Access to the mobile communication core network under the control of the mobile switching center.
实施例二  Embodiment 2
图 8为本发明实施例二的无线信号接收***的***结构图， 如图 8所示， 本发明实施例二的无线信号接收***包括天线和至少两个基站， 每个基站包 括一个采用单天线的射频单元。 其中， 射频单元包括一个双工器和一个收发 器。 所述双工器还包括一个信号复制模块， 所述信号复制模块用于对双工器 接收的上行信号进行复制。  8 is a system structural diagram of a wireless signal receiving system according to Embodiment 2 of the present invention. As shown in FIG. 8, a wireless signal receiving system according to Embodiment 2 of the present invention includes an antenna and at least two base stations, each of which includes a single antenna. RF unit. The radio unit includes a duplexer and a transceiver. The duplexer further includes a signal copying module, and the signal copying module is configured to copy the uplink signal received by the duplexer.
本发明实施例二的无线信号接收***与本发明实施例一的无线信号接收 ***的不同之处在于， 所述射频单元为不同基站的不同载频的同一扇区的射 频单元。  The wireless signal receiving system of the second embodiment of the present invention is different from the wireless signal receiving system of the first embodiment of the present invention in that the radio frequency unit is a radio frequency unit of the same sector of different carrier frequencies of different base stations.
下面以两个基站为例说明信号的流向： 两个基站的双工器将上行信号进 行放大和复制后， 分为两路信号， 一路信号作为本基站的收发器的接收信号 的输入， 另一路信号则作为另一个基站的收发器的接收信号的输入。 当遇到 一个基站的容量不能满足该地区要求时， 利用通道交叉技术把两个基站不同 载频的同一扇区的射频部分利用本发明实施例二的无线信号接收***互连， 就实现了两个基站的同一扇区使用同一副天线， 实现了同扇区多个载波的覆 盖。 The following two base stations are taken as an example to illustrate the flow of signals: The duplexers of the two base stations amplify and copy the uplink signals, and then divide them into two signals, one signal is used as the input signal of the transceiver of the base station, and the other channel is used. The signal is then used as the input to the receive signal of the transceiver of the other base station. When encountered When the capacity of a base station cannot meet the requirements of the region, the radio frequency portion of the same sector with different carrier frequencies of the two base stations is interconnected by the wireless signal receiving system of the second embodiment of the present invention by using the channel crossing technology, thereby realizing the two base stations. The same sector uses the same antenna to achieve coverage of multiple carriers in the same sector.
所述两个基站可以共用一副双极化天线， 也可以各自使用一副单极化天 线。  The two base stations may share a pair of dual-polarized antennas, or each may use a pair of single-polarized antennas.
本发明实施例二的天线接收方法与本发明实施例一的天线接收方法的不 同之处在于将 103)改为以下步骤：  The antenna receiving method of the second embodiment of the present invention is different from the antenna receiving method of the first embodiment of the present invention in that 103) is changed to the following steps:
103 )所述射频单元的双工器将复制后的信号分别发送给不同基站的射频 单元的收发器。  103) The duplexer of the radio unit transmits the copied signal to the transceiver of the radio unit of the different base station.
双工器将收到的信号复制为两路信号， 其中， 将一路信号发送到该双工 器所属基站的收发器， 将另一路信号发送到其他双工器所属基站的收发器。 由于对输入信号进行了复制， 使得每一个收发器的主集通道和分集通道都有 输入信号， 实现了两个基站的同一扇区使用同一副双极化天线的效果。  The duplexer copies the received signal into two signals, wherein one signal is sent to the transceiver of the base station to which the duplexer belongs, and the other signal is sent to the transceiver of the base station to which the other duplexer belongs. Since the input signal is copied, the input channel and the diversity channel of each transceiver have input signals, which realizes the effect that the same sector of the two base stations uses the same pair of dual-polarized antennas.
当遇到一个基站的容量不能满足该地区要求时， 利用通道交叉技术把两 个基站不同载频的同一扇区的射频部分利用本发明实施例的方法互连， 就实 现了两个基站的同一扇区使用同一副双极化天线， 达到与单个基站单独使用 一副双极化天线时相同的覆盖范围和接收性能， 而容量扩大一倍， 实现了同 扇区多个载波的覆盖。  When the capacity of a base station cannot meet the requirements of the local area, the radio frequency part of the same sector with different carrier frequencies of the two base stations is interconnected by the method of the embodiment of the present invention by using the channel crossover technology, thereby realizing the same of the two base stations. The sector uses the same pair of dual-polarized antennas to achieve the same coverage and reception performance as when a single base station uses a pair of dual-polarized antennas alone, and the capacity is doubled to achieve coverage of multiple carriers in the same sector.
显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本 发明的精神和范围。 这样， 倘若对本发明的这些修改和变型属于本发明权利 要求及其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。  It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Therefore, it is intended that the present invention cover the modifications and variations of the invention as claimed.

Claims

权利要求 Rights request
1、一种无线信号接收***， 包括天线， 至少两个采用单天线的射频单元， 所述射频单元包括双工器和收发器， 其特征在于， 所述射频单元的双工器用 于将所述天线所接收到的信号进行复制， 并将复制后的信号分别发送给所述 至少两个射频单元的收发器。  A wireless signal receiving system, comprising: an antenna, at least two radio frequency units using a single antenna, the radio frequency unit comprising a duplexer and a transceiver, wherein the duplexer of the radio frequency unit is configured to: The signals received by the antenna are copied, and the copied signals are respectively sent to the transceivers of the at least two radio frequency units.
2、 如权利要求 1所述的无线信号接收***， 其特征在于， 所述双工器中 包括：  2. The wireless signal receiving system according to claim 1, wherein the duplexer comprises:
放大模块， 用于将天线接收到的信号进行放大， 并将放大后的信号输出； 信号复制模块， 用于将所述放大模块输出的信号进行复制， 并将复制后 的信号分别发送到所述至少两个射频单元的收发器。  An amplifying module, configured to amplify a signal received by the antenna, and output the amplified signal; a signal copying module, configured to: copy the signal output by the amplifying module, and send the copied signal to the Transceivers for at least two radio frequency units.
3、 如权利要求 2所述的无线信号接收***， 其特征在于， 所述双工器还 包括滤波模块， 用于对所述天线所接收到的信号进行滤波， 并发送到所述放 大模块。  The wireless signal receiving system according to claim 2, wherein the duplexer further comprises a filtering module, configured to filter the signal received by the antenna and send the signal to the amplification module.
4、 如权利要求 1至 3中任一项所述的无线信号接收***， 其特征在于， 所述至少两个射频单元属于同一基站或属于不同基站。  The wireless signal receiving system according to any one of claims 1 to 3, wherein the at least two radio frequency units belong to the same base station or belong to different base stations.
5、 一种无线信号接收方法， 应用于包括天线、 至少两个采用单天线的射 频单元的信号接收***， 所述射频单元包括一个双工器和一个收发器， 其特 征在于， 包括以下步骤：  A radio signal receiving method is applied to a signal receiving system including an antenna and at least two radio frequency units using a single antenna. The radio frequency unit includes a duplexer and a transceiver, and the method includes the following steps:
所述天线接收信号， 并将接收到的信号发送到所述射频单元的双工器； 所述射频单元的双工器将天线所接收到的信号进行复制；  The antenna receives a signal and transmits the received signal to a duplexer of the radio frequency unit; the duplexer of the radio frequency unit copies the signal received by the antenna;
所述射频单元的双工器将复制后的信号分别发送给所述至少两个射频单 元的收发器。  The duplexer of the radio frequency unit transmits the copied signals to the transceivers of the at least two radio frequency units, respectively.
6、 如权利要求 5所述的无线信号接收方法， 其特征在于， 所述方法还包 括以下步骤：  The wireless signal receiving method according to claim 5, wherein the method further comprises the following steps:
所述至少两个射频单元的收发器将接收到的信号进行处理后， 发送到基 带处理单元； 基带处理单元对接收到的信号进行处理后， 发送到基站控制器， 由基站 控制器发送到移动交换中心， 在移动交换中心的控制下接入到移动通信核心 网络。 Transceivers of the at least two radio frequency units process the received signals and send them to the baseband processing unit; The baseband processing unit processes the received signal, sends it to the base station controller, transmits it to the mobile switching center by the base station controller, and accesses the mobile communication core network under the control of the mobile switching center.
7、 如权利要求 5所述的无线信号接收方法， 其特征在于， 所述射频单元 的双工器将天线所接收到的信号进行复制之前， 先对所述天线所接收到的信 号进行滤波和放大。  The wireless signal receiving method according to claim 5, wherein the duplexer of the radio frequency unit filters the signal received by the antenna before copying the signal received by the antenna amplification.
8、 如权利要求 5至 7中任一项所述的无线信号接收方法， 其特征在于， 所述的不同的射频单元属于同一基站或不同基站。  The wireless signal receiving method according to any one of claims 5 to 7, wherein the different radio frequency units belong to the same base station or different base stations.
9、 一种双工器， 包括用于将接收到的信号进行放大的放大模块， 其特征 在于， 所述双工器还包括信号复制模块， 用于将所述放大模块输出的信号进 行复制后输出。  A duplexer, comprising: an amplification module for amplifying the received signal, wherein the duplexer further comprises a signal copying module, configured to: after the signal output by the amplifying module is copied Output.
10、 如权利要求 9所述的双工器， 其特征在于， 所述双工器还包括滤波 模块， 用于对接收到的信号进行滤波， 并发送到所述放大模块。  The duplexer according to claim 9, wherein the duplexer further comprises a filtering module, configured to filter the received signal and send the signal to the amplifying module.
PCT/CN2007/001682 2006-09-26 2007-05-24 Radio receiving system, method and duplexer WO2008037160A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2006101599415A CN1956349A (en) 2006-09-26 2006-09-26 Radio signal receiving system, method and duplexer
CN200610159941.5 2006-09-26

Publications (1)

Publication Number Publication Date
WO2008037160A1 true WO2008037160A1 (en) 2008-04-03

Family

ID=38063478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001682 WO2008037160A1 (en) 2006-09-26 2007-05-24 Radio receiving system, method and duplexer

Country Status (2)

Country Link
CN (1) CN1956349A (en)
WO (1) WO2008037160A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099476A (en) * 2015-07-20 2015-11-25 联想(北京)有限公司 Electronic device and signal processing method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1132579A (en) * 1993-08-27 1996-10-02 诺基亚电信股份公司 Base station equipment using diversity reception
CN1316831A (en) * 2000-04-06 2001-10-10 汤姆森特许公司 Single interface of two-way communication equipment
US20020102945A1 (en) * 2001-01-30 2002-08-01 Kon-Hee Lee Transmit-receive switching circuit and method of wireless communication system
US6738367B1 (en) * 1999-01-23 2004-05-18 Samsung Electronics Co., Ltd. Apparatus for receiving signals in a base station for cellular radio telecommunication system
CN1656349A (en) * 2002-04-25 2005-08-17 株式会社东芝 Shelving unit and refrigerator having the same
WO2006071005A1 (en) * 2004-12-31 2006-07-06 Kmw Inc. Apparatus for using a wireless communication base station in common

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1132579A (en) * 1993-08-27 1996-10-02 诺基亚电信股份公司 Base station equipment using diversity reception
US6738367B1 (en) * 1999-01-23 2004-05-18 Samsung Electronics Co., Ltd. Apparatus for receiving signals in a base station for cellular radio telecommunication system
CN1316831A (en) * 2000-04-06 2001-10-10 汤姆森特许公司 Single interface of two-way communication equipment
US20020102945A1 (en) * 2001-01-30 2002-08-01 Kon-Hee Lee Transmit-receive switching circuit and method of wireless communication system
CN1656349A (en) * 2002-04-25 2005-08-17 株式会社东芝 Shelving unit and refrigerator having the same
WO2006071005A1 (en) * 2004-12-31 2006-07-06 Kmw Inc. Apparatus for using a wireless communication base station in common

Also Published As

Publication number Publication date
CN1956349A (en) 2007-05-02

Similar Documents

Publication Publication Date Title
US20210219293A1 (en) Embedded control signaling for self-organizing wireless backhaul radio and systems
US9209885B2 (en) Systems and methods for improved high capacity in wireless communication systems
US9654241B2 (en) Systems and methods for signal frequency division in wireless communication systems
US8706165B2 (en) Method and apparatus for reducing combiner loss in a multi-sector, omni-base station
AU2011239121B2 (en) Apparatus and method for Spatial Division Duplex(SDD) for millimeter wave communication system
US8560018B2 (en) Flexible sectorization in wireless communication systems
US11611422B2 (en) Sub-band-full-duplex adaptive base station transceiver
KR101803342B1 (en) Apparatus and method for a multiband radio operating in a wireless network
WO2008034330A1 (en) Method for combining uplink signals in the sector splitting mode and a base station system thereof
KR20100016591A (en) Method and apparatus for converting between a multi-sector, omni-base station configuration and a multi-sector base station configuration
KR20100036943A (en) Mimo repeater apparatus, mimo handheld terminal apparatus, mimo wireless communication method
JP5884737B2 (en) Wireless communication device
CN102882573A (en) Multiple-input multiple-output signal transmission realization method, device and system
EP2833559B1 (en) Compact dual all-outdoor point-to-point microwave radio architecture
WO2013007213A1 (en) System, device, and method for transmitting multi-input-multi-output signals
WO2008037160A1 (en) Radio receiving system, method and duplexer
EP2803146B1 (en) Systems and methods for improved high capacity in wireless communication systems

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07721255

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07721255

Country of ref document: EP

Kind code of ref document: A1