[go: up one dir, main page]

WO2008037160A1 - Système de réception radio, procédé et duplexeur - Google Patents

Système de réception radio, procédé et duplexeur 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
English (en)
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/fr

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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un système de réception radio comprenant des antennes et au moins deux unités à fréquence radio employant une antenne unique. L'unité à fréquence radio comprend un duplexeur et un émetteur-récepteur. Le duplexeur de l'unité à fréquence radio est utilisé pour copier le signal reçu par l'antenne, et transmettre le signal copié respectivement à au moins deux émetteurs-récepteurs des unités à fréquence radio. Le système de réception radio, le procédé et le duplexeur emploient la technologie de croisement de données pour copier le signal reçu et le croiser, ce qui donne l'effet d'une antenne multiple bien que chaque duplexeur emploie une antenne unique pour la réception du signal.
PCT/CN2007/001682 2006-09-26 2007-05-24 Système de réception radio, procédé et duplexeur WO2008037160A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610159941.5 2006-09-26
CNA2006101599415A CN1956349A (zh) 2006-09-26 2006-09-26 无线信号接收系统、方法以及双工器

Publications (1)

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

Family

ID=38063478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001682 WO2008037160A1 (fr) 2006-09-26 2007-05-24 Système de réception radio, procédé et duplexeur

Country Status (2)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105099476A (zh) * 2015-07-20 2015-11-25 联想(北京)有限公司 电子设备及其信号处理方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1132579A (zh) * 1993-08-27 1996-10-02 诺基亚电信股份公司 采用分集接收的基地台设备
CN1316831A (zh) * 2000-04-06 2001-10-10 汤姆森特许公司 双向通信设备的信号接口
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 (zh) * 2002-04-25 2005-08-17 株式会社东芝 棚架装置及具有该棚架装置的冰箱
WO2006071005A1 (fr) * 2004-12-31 2006-07-06 Kmw Inc. Appareil d'utilisation partagee d'une station de base de communication sans fil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1132579A (zh) * 1993-08-27 1996-10-02 诺基亚电信股份公司 采用分集接收的基地台设备
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 (zh) * 2000-04-06 2001-10-10 汤姆森特许公司 双向通信设备的信号接口
US20020102945A1 (en) * 2001-01-30 2002-08-01 Kon-Hee Lee Transmit-receive switching circuit and method of wireless communication system
CN1656349A (zh) * 2002-04-25 2005-08-17 株式会社东芝 棚架装置及具有该棚架装置的冰箱
WO2006071005A1 (fr) * 2004-12-31 2006-07-06 Kmw Inc. Appareil d'utilisation partagee d'une station de base de communication sans fil

Also Published As

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

Similar Documents

Publication Publication Date Title
US10966201B2 (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
US11611422B2 (en) Sub-band-full-duplex adaptive base station transceiver
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
US8560018B2 (en) Flexible sectorization in wireless communication systems
KR101803342B1 (ko) 무선 네트워크에서 운용되는 다중대역 라디오 장치 및 방법
WO2008034330A1 (fr) Procédé de combinaison de signaux de liaison montante en mode de division de secteur et système de station de base associé
JP5884737B2 (ja) 無線通信装置
CN104348535B (zh) 紧凑、双极化的全室外点对点微波无线电架构
WO2013007213A1 (fr) Système, dispositif et procédé de transmission de signaux à entrées multiples et sorties multiples
CN202713298U (zh) 适合电力无线通信专用网的多天线系统
WO2008037160A1 (fr) Système de réception radio, procédé et duplexeur
EP2803146B1 (fr) Systèmes et procédés pour une haute capacité améliorée dans des systèmes de communication sans fil
CN101197605B (zh) 实现4天线接收分集的系统、数据接收模块及方法
ART BS SECTOR 2 Y
HK1205375B (zh) 紧凑、双极化的全室外点对点微波无线电架构

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