WO2012103830A2 - 天线***、基站***和通信*** - Google Patents
天线***、基站***和通信*** Download PDFInfo
- Publication number
- WO2012103830A2 WO2012103830A2 PCT/CN2012/072604 CN2012072604W WO2012103830A2 WO 2012103830 A2 WO2012103830 A2 WO 2012103830A2 CN 2012072604 W CN2012072604 W CN 2012072604W WO 2012103830 A2 WO2012103830 A2 WO 2012103830A2
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- WIPO (PCT)
- Prior art keywords
- antenna
- signals
- signal
- frequency band
- unit group
- Prior art date
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Classifications
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- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- 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
- H04B7/10—Polarisation diversity; Directional diversity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
Definitions
- Antenna system base station system and communication system
- the present invention relates to the field of communications technologies, and in particular, to an antenna system, a base station system, and a communication system.
- a wireless distributed base station system can be connected to a passive antenna by using a radio remote unit (RRU).
- RRU radio remote unit
- the current evolution trend of the wireless distributed base station system is that the radio unit is integrated with the antenna, that is, the radio unit is integrated.
- the Active Antenna System (AAS) architecture is an integrated antenna architecture.
- the antenna system in the prior art is shown in FIG. 1 , which includes two columns of antenna unit groups, two columns of antenna unit groups are transmitting and receiving resonators, and one column of antenna unit groups 1 is connected with an active device transceiver (Transceiver) 2 .
- the source antenna architecture implements two transmissions and two receptions (2T2R), and the other antenna antenna unit group 3 is connected to the RRU, which is a passive antenna.
- the prior art can support the receiving performance benefit of two channels, that is, the receiving performance benefit of 2R, and the network performance gain is poor.
- the technical solution of the present invention provides an antenna system, a base station system, and a communication system to improve network performance gains.
- the present invention provides an antenna system comprising:
- a first antenna device at least one second antenna device, and at least one pair of receiving channels
- the first antenna device includes: a first antenna unit group, a first combining splitter, and an active module; and the second antenna device includes: a second antenna unit group and a second combining splitter;
- the first antenna unit group and the second antenna unit group each include a plurality of antenna elements, and the first combining splitter is configured to receive the plurality of antenna elements in the first antenna unit group. Signaling is combined in the two different polarization directions;
- the active module is configured to receive the two different polarizations through the first combiner a signal that is combined in the direction, and performs frequency conversion processing on the signal that is combined by the first combining splitter to obtain a baseband signal;
- the second combining splitter is configured to combine signals received by the plurality of antenna elements in the second antenna element group in the two different polarization directions;
- Each of the second antenna devices further corresponds to the at least one pair of receiving channels, and the at least one pair of receiving channels are respectively configured to receive the two different polarization directions through the second combining splitter Signal of the road;
- the active module is further configured to perform frequency conversion processing on the signals received by the at least one pair of receiving channels to obtain a baseband signal.
- the present invention also provides a base station system, including: an antenna system;
- the antenna system includes: a first antenna device, at least one second antenna device, and at least one pair of receiving channels;
- the first antenna device includes: a first antenna unit group, a first combining splitter, and an active module; and the second antenna device includes: a second antenna unit group and a second combining splitter;
- the first antenna unit group and the second antenna unit group each include a plurality of antenna elements, and the first combining splitter is configured to receive the plurality of antenna elements in the first antenna unit group. Signaling is combined in the two different polarization directions;
- the active module is configured to receive a signal that is combined in the two different polarization directions by the first combining splitter, and perform a signal that is combined by the first combining splitter Frequency conversion processing to obtain a baseband signal;
- the second combining splitter is configured to combine signals received by the plurality of antenna elements in the second antenna element group in the two different polarization directions;
- Each of the second antenna devices further corresponds to the at least one pair of receiving channels, and the at least one pair of receiving channels are respectively configured to receive the two different polarization directions through the second combining splitter Signal of the road;
- the active module is further configured to perform frequency conversion processing on the signals received by the at least one pair of receiving channels to obtain a baseband signal.
- the present invention further provides a communication system, including: a base station system, where the base station system includes an antenna system;
- the antenna system includes: a first antenna device, at least one second antenna device, and at least one pair of receiving channels;
- the first antenna device includes: a first antenna unit group, a first combining splitter, and an active module; and the second antenna device includes: a second antenna unit group and a second combining splitter;
- the first antenna unit group and the second antenna unit group each include a plurality of antenna elements, and the first combining splitter is configured to receive the plurality of antenna elements in the first antenna unit group. Signaling is combined in the two different polarization directions;
- the active module is configured to receive a signal that is combined in the two different polarization directions by the first combining splitter, and perform a signal that is combined by the first combining splitter Frequency conversion processing to obtain a baseband signal;
- the second combining splitter is configured to combine signals received by the plurality of antenna elements in the second antenna element group in the two different polarization directions;
- Each of the second antenna devices further corresponds to the at least one pair of receiving channels, and the at least one pair of receiving channels are respectively configured to receive the two different polarization directions through the second combining splitter Signal of the road;
- the active module is further configured to perform frequency conversion processing on the signals received by the at least one pair of receiving channels to obtain a baseband signal.
- An antenna system, a base station system, and a communication system provided by the technical solution of the present invention, in an antenna system composed of an active antenna unit group and a passive antenna unit group, in a polarization direction of a passive antenna unit group by a splitter After the received signals are combined, at least one pair of receiving channels are used for receiving, and then the signals received by the receiving channels are subjected to frequency conversion processing to obtain a baseband signal. Since the antenna system realizes receiving and frequency-converting signals in different polarization directions in the passive antenna unit group, the antenna system composed of the active antenna unit group and the passive antenna unit group in the antenna system can be realized.
- FIG. 1 is a schematic structural view of a conventional antenna system
- FIG. 2 is a schematic structural diagram of an embodiment of an antenna system provided by the present invention.
- FIG. 3 is a schematic structural diagram of a first antenna device according to an embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of still another embodiment of an antenna system according to the present invention.
- FIG. 5 is a schematic structural diagram of another embodiment of an antenna system according to the present invention.
- the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- WiMAX Worldwide Interoperability for Microwave Access
- LTE Long Term Evolution
- the base station system can be a system including an antenna and a base station.
- the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNB or e-NodeB, evolved Node B) in LTE.
- BTS Base Transceiver Station
- NodeB base station
- eNB or e-NodeB, evolved Node B evolved Node B
- the antenna system includes: a first antenna device, at least one second antenna device, and at least one pair of receiving channels 3;
- the first antenna device includes: a first antenna unit group 11, a first combining splitter 12, and an active module 13;
- the second antenna device includes: a second antenna unit group 21 and a second combining splitter 22;
- the first antenna unit group 11 and the second antenna unit group 21 each include a plurality of antenna elements, and an antenna
- the vibrator is used to transmit and receive signals in two different polarization directions;
- a first combining splitter 12 configured to combine signals received by multiple antenna elements in the first antenna unit group 11 in two different polarization directions;
- the active module 13 is configured to receive signals that are combined in two different polarization directions by the first combining splitter 12, and perform frequency conversion processing on the signals that are combined by the first combining splitter 12 to obtain a baseband signal. ;
- a second combining splitter 22 configured to combine signals received by the plurality of antenna elements in the second antenna unit group 21 in two different polarization directions;
- Each of the second antenna devices further corresponds to at least one pair of receiving channels 3, and at least one pair of receiving channels 3 are respectively configured to receive signals that are combined in two different polarization directions by the second combining splitter 22;
- the active module 13 is further configured to frequency-convert the signals received by the at least one pair of receiving channels 3 to obtain a baseband signal.
- the first antenna element group 11 and the second antenna element group 21 each include a plurality of antenna elements (each antenna element, that is, one of the antenna element groups), and the number of antenna elements included in the first antenna unit 11
- the number of antenna elements included in the second antenna unit group 21 may be the same or different.
- Each antenna element transmits and receives signals in two different polarization directions.
- Each antenna element in the first antenna unit 11 has the same two polarization directions, and each antenna element in the second antenna unit 21 also has the same two. The direction of polarization.
- each antenna element in the first antenna unit 11 can transmit and receive signals in two transmitting and receiving directions of positive 45 degrees and negative 45 degrees with the horizontal plane; likewise, each antenna element in the second antenna unit 21 can be The horizontal plane transmits and receives signals in two transmission and reception directions of positive 45 degrees and negative 45 degrees.
- each antenna element involved in the embodiment of the present invention can be used for both receiving signals and transmitting signals. That is, both the first antenna unit group 11 and the second antenna unit group 21 in the embodiment of the present invention can adopt a transceiving resonator structure.
- the first antenna device formed by the first antenna unit group 11, the first combining splitter 12 and the active module 13 is an active antenna architecture, for example: the first antenna device may be an AAS active antenna architecture, or may be There are other active antenna architectures.
- the active antenna architecture can achieve 2-channel receive performance gains, that is, achieve 2R receive performance gains, as follows:
- the embodiment of the present invention provides a feasible structure of the first antenna device, as shown in FIG. 3, where:
- the first antenna unit group 11 includes: b antenna elements.
- the first combiner 12 can be used to combine the 2b signals received by the b antenna elements in the first antenna unit group 11 into the 2a channel signal, and the b channel signal and the 2a channel signal in the 2b channel signal.
- One a-channel signal corresponds to one polarization direction of b antenna elements, and the other b-channel signal and the other a-channel signal correspond to another polarization direction of b antenna elements, wherein b and a are both greater than 1
- the integer, a is less than or equal to b;
- the active module 13 may specifically include: a pair of transceiver channels 131 and a signal processor 132; wherein: a pair of transceiver channels 131, two pairs of signals in each of the pair of transceiver channels 131 and 2a signals in two different polarization directions Correspondingly, each pair of transceiver channels 131 is configured to receive two signals in two different polarization directions of the 2a channel signals;
- the signal processor 132 is configured to perform frequency conversion processing on the signals received by the a pair of transceiver channels 131 and the signals received by at least one pair of receiving channels.
- the first combining splitter 12 may be composed of an existing two a-drive b-shunt network or a 2a-drive 2b split-route network.
- the signal received by each of the antenna elements in the first antenna unit group 11 in one polarization direction can be input as a signal to the first combining splitter 12, that is, the second antenna unit group 11 has a total of 2b channels.
- the signal is input to the first combiner 12, one of the 2b signals corresponds to one polarization direction of the b antenna elements, and the other b signal corresponds to the other polarization direction of the b antenna elements.
- the first combining splitter 12 can combine the b channel signals in one polarization direction of the 2b channel signal into one channel signal output, and the 2b channel signal is located at the other pole.
- the b-way signal combination in the direction of the direction is the output of the other a-way signal. That is, among the 2a signals obtained after the first combining splitter 12 is combined, one a signal corresponds to one polarization direction of the b antenna elements, and the other a signal corresponds to the other polarization direction of the b antenna elements. .
- a and b are integers greater than 1, a is less than or equal to b, and the ratio of a and b is not a fixed value, which may be determined by the performance index of the antenna (eg, coverage performance, gain, etc.) and the implementation cost.
- each transceiver channel 131 can be set, and each transceiver channel 131 is configured to receive one of the signals of the 2a channel. Therefore, the transceiver channel 131 needs to be set in pairs, and each pair of transceiver channels 131 and 2a are located in two different signals. Corresponding to two signals in the polarization direction, each pair of transceiver channels 131 is used to receive two signals in two different polarization directions of the 2a channel signals.
- a pair of transceiver channels 131, a pair of transceiver channels 131 in each of the transceiver channels 131 may be provided, including a transceiver channel TRX M in the M polarization direction and a transceiver channel in the D polarization direction.
- TRX_D wherein the M polarization direction and the D polarization direction are two different polarization directions of each antenna element receiving signal in the first antenna element group 11.
- a pair of transceiver channels 131 can be: TRX-M1 and TRX-D1, TRX-M2 and TRX-D2, TRX_Ma and TRX_Da, respectively.
- the transceiver channel 131 may be an existing transceiver channel, and the existing transceiver channel 131 may perform analog-to-digital conversion and down-conversion processing on the received signal to obtain an intermediate frequency signal.
- the signal input to the signal processor 132 by the transceiver channel 131 may be an intermediate frequency signal.
- the signal processor 132 can further convert the received intermediate frequency signal to obtain a baseband signal.
- the signal processor 132 finally obtains two baseband signals in the M polarization direction and the D polarization direction.
- the a pair of the transceiver modules 131 in the active module 13 in the first antenna device can receive the signals of the b antenna elements in the two polarization directions, and the signal processor 132 can pair the transceiver channels 131.
- the output signal is processed to obtain two baseband signals in two polarization directions.
- the receive performance gain achieved by the first antenna unit group 11, the first combiner 12, and the active module 13 to the transceiver channel 131 and the signal processor 132 can be regarded as 2 channels (each channel corresponds to The receiving performance gain of a polarization direction of the b antenna elements, that is, the a pair of the first antenna unit group 11, the first combining splitter 12, and the active module 13 can implement the pair of transceiver channels 131 and the signal processor 132.
- Receive performance gains for 2R Receive Among them, the receiving performance gain can be reflected by the terminal's transmit power, system coverage, system capacity, and / or system signal-to-noise ratio performance indicators.
- the second antenna unit group 21 and the second combining splitter 22 in the second antenna device form a passive antenna architecture, and the second combining splitter is disposed in the second antenna device. 22.
- the second antenna device is correspondingly provided with at least one pair of receiving channels 3, and each pair of receiving channels 3 can be respectively used to receive the second in two different polarization directions.
- the signal split by the splitter 22 is input to the active module 13 in the first antenna device for frequency conversion processing to obtain a baseband signal, and the second antenna unit group 21 can be received through at least one pair of receiving channels 3.
- the signals of the plurality of antenna elements in the two polarization directions, the active module 13 can process the signals output by the at least one pair of receiving channels 3 to obtain two paths in two polarization directions Baseband signal. Therefore, the receiving performance gain achieved by the second antenna unit group 21, the second combining splitter 22, and the at least one pair of receiving channels 3 and the active module 13 can be regarded as 2 channels (each channel corresponds to the second antenna unit group)
- the receiving performance benefit of one polarization direction of the plurality of antenna elements in 21, that is, the second antenna unit group 21, the second combining splitter 22, and the at least one pair of receiving channels 3 and the active module 13 can implement 2R ( Receive performance gains from Receive ).
- the first antenna unit group 11, the first combining splitter 12, and the active module 13 in the first antenna device can realize the receiving performance benefit of 2 channels.
- the second antenna unit group 21 and the second combining splitter 22 in each of the second antenna devices, the at least one pair of receiving channels 3, and the active module 13 in the first antenna device are capable of achieving a 2-channel reception performance benefit. Therefore, the antenna system provided by the embodiment of the present invention can achieve a 4-channel reception performance gain or a reception performance gain of 4 channels or more, that is, a reception performance gain of 4R or more.
- the multiple paths have mutual interference. Assuming that the signal received by the antenna system has 4 paths, if only the first antenna device in the antenna system can realize 2 channels (one polarization direction of each channel corresponding to b antenna elements), then each of the first antenna devices The channels correspond to the signals of the two paths, and there is interference between the signals of the two paths, so that the performance index such as the signal-to-noise ratio of the system is poor.
- the second antenna unit group 21 and the second combining splitter 22 in the second antenna device and at least one pair of receiving channels are provided on the basis that the first antenna device can realize 2-channel reception. 3 and the active module 13 in the first antenna device can realize reception of two channels (each channel corresponds to one polarization direction of a plurality of antenna elements in the second antenna element group 21).
- each channel implemented by the first antenna device, the second antenna device, the at least one pair of receiving channels 3, and each channel implemented by the active module 13 in the first antenna device only need to correspond to the signal of one path, therefore, improve the signal-to-noise ratio and other performance indicators of the system. It can be seen that the more channels the antenna system implements, the better the reception performance of the system.
- the above is only taking the signal-to-noise ratio of the system as an example, and the performance gain of the four-channel or more-channel reception implemented by the embodiment of the present invention is compared with the existing two-channel reception.
- the reception of 4 channels or more and the reception of 2 channels can realize the terminal to transmit less power, the system has better coverage and realizes the system with larger capacity, which is not described here.
- the second combiner 22 can be used for existing passive days.
- the combined split network of the line which is commonly referred to as a passive split network.
- the passive multiplexer network can combine signals received by the plurality of antenna elements in the second antenna unit group 21 into two signals, each signal corresponding to one pole of the plurality of antenna elements in the second antenna unit group 21.
- the second combination splitter 22 can set the second antenna element group 21
- the signals received by the antennas in the antennas in the direction of the positive polarization of 45 degrees with respect to the horizontal plane are combined into one signal, and all the antenna elements in the second antenna unit group 21 are located at a negative polarization of 45 degrees with the horizontal plane.
- the signals received by the antenna are combined into another signal.
- each of the second antenna devices may be correspondingly provided with a pair of receiving channels 3, and one of the pair of receiving channels 3 may be configured to receive the combined signals obtained by the second combining splitter 22 a signal, which may be, for example, a signal obtained by combining signals received by an antenna located in a polarization direction of a positive 45 degree with respect to a horizontal plane in all antenna elements of the second antenna unit group 21; another receiving channel 3 may be used to receive another signal obtained by combining the second combining splitter 22, and the path signal may be, for example: all of the antenna elements in the second antenna unit group 21 are located at a negative 45 degree polarization with the horizontal plane.
- a signal obtained after the signals received by the antennas are combined.
- the pair of receiving channels 3 can input the received signals into the active module 13 in the first antenna device for frequency conversion processing to obtain two baseband signals, thereby implementing the second antenna unit group in each of the second antenna devices.
- the 21 and second combiner 22, the at least one pair of receive channels 3, and the active module 13 of the first antenna device are capable of achieving a 2-channel receive performance benefit, i.e., 2R receive performance gain.
- the receiving channel 3 may be an existing receiving channel, and the existing receiving channel 3 may perform analog-to-digital conversion and down-conversion processing on the received signal to obtain an intermediate frequency signal.
- the signal input to the active module 13 by the receiving channel 3 may be an intermediate frequency signal.
- the signal processing portion of the active module 13, such as the signal processor 132 shown in Fig. 3, can further convert the intermediate frequency signal input to the receiving channel 3 to obtain a baseband signal.
- the second antenna device can be configured by providing a passive splitting network (ie, a conventional splitting network applied to the passive antenna), and each second antenna device corresponds to Providing a pair of receiving channels 3, realizing the second antenna unit group 21 in each second antenna device, the passive combining branch network, the pair of receiving channels 3, and the active modules 13 in the first antenna device, Now 2 channels of receiving performance gains.
- a passive splitting network ie, a conventional splitting network applied to the passive antenna
- each second antenna device corresponds to Providing a pair of receiving channels 3, realizing the second antenna unit group 21 in each second antenna device, the passive combining branch network, the pair of receiving channels 3, and the active modules 13 in the first antenna device, Now 2 channels of receiving performance gains.
- one or more second antenna devices may be disposed, so that at least one second antenna device and the first antenna device can achieve 4 channels of receiving performance gain or more than 4 channels of receiving performance gains. That is, the reception performance gain of 4R and above is achieved.
- the second combiner 22 can employ a shunt device similar to the first combiner 12 of the first antenna device.
- the second combiner 22 can be composed of two existing m-drive n-shunt networks or a 2m-drive 2n-split network.
- the signal received by each antenna element can be input as a signal to the second combining splitter 22, that is, the second antenna unit group 21 has a total of 2n signals.
- one of the 2n signals corresponds to one polarization direction of the n antenna elements, and the other n signal corresponds to the other polarization direction of the n antenna elements.
- the second combining splitter 22 After receiving the 2n signal, the second combining splitter 22 combines the n signals in one polarization direction of the 2n signal into m signals, and combines the n signals in the other polarization direction.
- the m-channel signal output that is, one m-channel signal of the 2m road signal obtained after the second combining splitter 22 is combined corresponds to one polarization direction of the n antenna elements, and the other m-channel signal corresponds to n antenna elements.
- Another polarization direction where m and n are integers greater than 1, m is less than equal to n, and the ratio of m to n is not a fixed value, which may be determined by the performance index of the antenna (eg, coverage performance, gain, etc.) and the implementation cost.
- n and b are generally equal, m and a may be the same or different.
- each receiving channel 3 is configured to receive one of the 2m signals. Therefore, the receiving channels 3 need to be arranged in pairs, and each pair of receiving channels 3 and 2m signals are located in two different polarization directions. Corresponding to the two signals, each pair of receiving channels 3 is used to receive two signals in two different polarization directions of the 2m channel signals. Therefore, m pairs of receiving channels 3 can be correspondingly arranged in each of the second antenna devices.
- Each pair of receiving channels 3 in the pair of receiving channels 3 includes a receiving channel RX_M in the M polarization direction and a receiving channel RX_D in the D polarization direction, and the m pair receiving channels 3 can be: RX_M1 and RX_D1, respectively. RX_M2 and RX_D2, ...
- the receiving channel 3 can be an existing receiving channel, and the existing receiving channel 3 can perform analog-to-digital conversion and down-conversion processing on the received signal to obtain an intermediate frequency signal. Therefore, in the embodiment of the present invention, the receiving channel 3 is input.
- the signal to the active module 13 can be an intermediate frequency signal.
- the signal processing portion of the active module 13, such as the signal processor 132 shown in FIG. 3, can further convert the intermediate frequency signal input to the receiving channel 3 to obtain two paths in the M polarization direction and the D polarization direction. Baseband signal.
- the active module 13 is further configured to: perform beamforming on the signals of the first combining splitter 12 and the at least one pair of receiving and receiving signals.
- the active module 13 can beamform the signals combined by the first combining splitter 12 and the signals received by the at least one pair of receiving channels by various methods, for example: beamforming can be performed in the analog domain. , beamforming can also be performed in the digital domain.
- each second antenna device can be correspondingly disposed with the second combiner 22 (may be composed of two m-drive n-shared networks, or a 2m-driven 2n-split network) And m to the receiving channel 3, the second antenna unit group 21, the m-drive n-shunt network, the m-pair receiving channel 3, and the active module 13 in the first antenna device in each of the second antenna devices can be realized 2 channel receive performance gains.
- one or more second antenna devices may be disposed, so that at least one second antenna device and the first antenna device can achieve 4 channels of receiving performance gain or more than 4 channels of receiving performance gains. That is, the reception performance gain of 4R and above is achieved.
- the antenna system in the antenna system formed by the active antenna unit group and the passive antenna unit group, after the signals received by the passive antenna unit groups in different polarization directions are combined by the splitter, At least one pair of receiving channels is used for receiving, and then the signal received by the receiving channel is subjected to frequency conversion processing to obtain a baseband signal. Since the antenna system realizes receiving and frequency-converting signals in different polarization directions in the passive antenna unit group, the antenna system composed of the active antenna unit group and the passive antenna unit group in the antenna system can be realized.
- FIG. 4 is a schematic structural diagram of still another embodiment of an antenna system according to the present invention.
- a conventional split-circuit network applied to a passive antenna is disposed in a second antenna device, that is, a source-splitting and shunting network, and a pair of receiving channels corresponding to each of the second antenna devices, each implementing The second antenna unit group 21, the passive shunt network, the pair of receiving channels 3, and the active module 13 in the first antenna device in the second antenna device are capable of achieving 2-channel reception performance gain.
- the specific instructions are as follows:
- the second combining splitter 22 is specifically configured to: combine signals received by multiple antenna elements in the second antenna unit group 21 into two signals, and each signal corresponds to the second antenna unit group 21 a polarization direction of a plurality of antenna elements in the medium;
- each of the second antenna devices corresponds to a pair of receiving channels 3 for receiving two signals obtained after the second combining device 22 is combined.
- the second combiner 22 can be an existing passive shunt network, and the passive shunt network can combine signals received by multiple antenna elements in the second antenna unit group 21 into two paths.
- the signal, each signal corresponds to a polarization direction of the plurality of antenna elements in the second antenna unit group 21.
- the second combining splitter 22 can polarize all the antenna elements in the second antenna element group 21 at M.
- the signals received in the direction are combined into one signal, and the signals received by all the antenna elements in the second antenna unit group 21 in the D polarization direction are combined into another signal.
- the second antenna device may be correspondingly provided with a pair of receiving channels 3, and one of the pair of receiving channels 3 may be configured to receive a signal obtained by combining the second combining splitter 22
- the path signal may be, for example, a signal obtained by combining the signals received by the antenna elements in the second antenna unit group 21 in the M polarization direction; and another receiving channel 3 may be used for receiving the
- the other signal obtained by combining the two-way splitter 22 may be, for example, a path obtained by combining the signals received by the antenna elements corresponding to the antenna elements in the second antenna unit group 21 in the D polarization direction. signal.
- the pair of receiving channels 3 can be an existing receiving channel, and can perform analog-to-digital conversion and down-conversion processing on the received signals to obtain an intermediate frequency signal. Therefore, the signal input to the active module 13 of the receiving channel 3 can be an intermediate frequency signal.
- the signal processing part in the active module 13, such as the signal processor 132 shown in FIG. 3, can further convert the intermediate frequency signal input to the receiving channel 3 to obtain two baseband signals, thereby implementing each second antenna device.
- the second antenna unit group 21, the passive shunt network, the pair of receiving channels 3, and the active module 13 in the first antenna device can achieve a 2-channel reception performance gain.
- the second antenna device can be used as a passive antenna to connect with a module such as an RRU.
- signals received by multiple antenna elements in the first antenna unit group 11 may be set to a first frequency band
- signals received by multiple antenna elements in the second antenna unit group 21 may be set as a second frequency band, wherein the second frequency band includes the first frequency band and the second frequency band is greater than the first frequency band;
- the signal frequency band received by the second antenna unit group 21 includes the signal frequency band received by the first antenna unit group 11, the first frequency band of the two signals obtained after passing through the second combining splitter 22 can be filtered. And outputted to a pair of receiving channels 3 to achieve 2R reception in the two polarization directions of the second antenna element group 21. Among the two signals obtained by combining the output through the second combining splitter 22, the remaining signals except the first frequency band are output to the RRU and other modules, so that the second antenna device is used as a passive antenna.
- At least one first filter 23 may be disposed in the second antenna device, and at least one first filter 23 may be disposed in the second combiner 22 Between the pair of transceiver channels 3, the first frequency band of the two signals obtained after the second combining splitter 22 is combined can be filtered out and output to a pair of receiving channels corresponding to the second antenna device.
- a first filter 23 may be disposed, and each of the first filters 23 may be provided with two input ports and two output ports, and each input port is received after being combined by the second combining splitter 22. One signal, each output port is used to input the filtered one signal into one receiving channel 3.
- each of the first filters 23 may be provided with an input port and an output port for receiving a path obtained after the second combining splitter 22 is combined.
- the signal, the filtered one signal is input to a receiving channel 3.
- the at least one first filter 23 may further output all or part of the two signals except the first frequency band to the RRU and the RRU module among the two signals obtained after the second combining splitter 22 is combined. Or in a non-distributed base station, thereby implementing the use of the second antenna device as a passive antenna.
- At least one second filter may be disposed between the second antenna unit group 21 and the second combining splitter 22 for the first of the signals received by the n antenna elements.
- a frequency band is filtered out and output to the second combiner 22 .
- the second filter can be an existing resonant sub-filter.
- the number of the second filters may be the same as the number of antenna elements, that is, n second filters are set, and each second filter may be configured with two input ports and two output ports, for Receiving a signal received by one antenna element of the second antenna unit 21 in two polarization directions, and filtering out the first frequency band of the received signal and outputting to the second combining splitter 22, and then The second combiner 22 performs a combined process.
- each of the second filters is provided with an input port and an output port, and each second filter is configured to receive one antenna element in the second antenna unit 21 in one
- the signal in the polarization direction filters out the first frequency band of the received signal and outputs it to the second combining splitter 22, and then combines the processing by the second combining splitter 22.
- a second filter may be further disposed, and 2n input ports and 2n output ports are disposed on the second filter for receiving signals of n antenna elements in two polarization directions, and The first frequency band of the received signal is filtered out and outputted to the second combining splitter 22, and then combined by the second combining splitter 22.
- the at least one second filter may also output all or part of the received signals other than the first frequency band to implement the second antenna device for use as a passive antenna.
- a third combining splitter may be further disposed in the second antenna device, where the third combined splitter may be an existing passive combined split network, and the third combined splitter may Combining all or part of the remaining signals of the second filter output except the first frequency band into two signals, wherein each signal can correspond to one polarization direction of the n antenna elements, the third combination
- the splitter can output the two signals obtained after the combination to the RRU, the RRU module or the non-distributed base station, thereby realizing the use of the second antenna device as a passive antenna.
- the antenna system further includes: a radio remote unit module (not shown), where the radio remote unit module can be used to receive two outputs of the first filter 23 or the third splitter output. All or part of the remaining signals except the first frequency band, and the two received signals are subjected to frequency conversion processing to obtain two baseband signals, and then sent to the baseband unit through the digital interface.
- the antenna system provided in this embodiment implements two poles in the second antenna unit group by providing a passive combining branch network in each second antenna device, and correspondingly setting a pair of receiving channels for each second antenna device.
- the 2R reception in the direction of the realization achieves the reception performance gain of the antenna system of 4R or more.
- the signals received by the plurality of antenna elements in the first antenna unit group are set to the first frequency band
- the signals received by the plurality of antenna elements in the second antenna unit group are set to the second frequency band, so that the second The frequency band includes the first frequency band and the second frequency band has a larger range than the first frequency band.
- the first frequency band of the two signals obtained after the second combining splitter is combined is filtered out by setting at least one first filter between the second combining splitter and the pair of receiving channels, and outputting to In a pair of receiving channels, 2R reception on a first frequency band in two polarization directions of the second antenna element group is achieved.
- the remaining signals except the first frequency band may be all or partially outputted to the RRU or the non-distributed base station, so that the second antenna device is used as the The source antenna is used.
- the remaining signals of the signals output by the plurality of antenna elements except the first frequency band may be outputted in whole or in part.
- the third combined splitter is combined into two signals to be output to the RRU or the non-distributed base station, so that the second antenna device is used as a passive antenna.
- FIG. 5 is a schematic structural diagram of another embodiment of an antenna system according to the present invention.
- an m-drive n-shunt network is disposed in the second antenna device, and each second antenna device can be configured with m.
- the active module 13 in the first antenna device can realize the benefit of the 2-channel reception performance as an example.
- the second combiner 22 can be specifically configured to: combine the 2n signals received by the n antenna elements in the second antenna unit group 21 into a 2m signal, and one of the 2n signals.
- One of the road signal and the 2m signal corresponds to one polarization direction of the n antenna elements, and the other n signal and the other m signal correspond to the other polarization direction of the n antenna elements, n and m Is an integer greater than 1, m is less than or equal to n;
- each second antenna device can be configured with m pairs of receiving channels 3, each pair of receiving channels 3 corresponding to two signals in two different polarization directions of the 2m road signals, each pair of receiving channels 3 for receiving Two signals in the two different polarization directions in the 2m road signal.
- the second combiner 22 can be used with the first combiner 12 in the first antenna device. A similar splitter device.
- the second combiner 22 can be composed of two existing m-drive n-share shunt networks, or can be composed of a conventional 2m-drive 2n shunt network. It is assumed that the second antenna element group 21 includes n antenna elements, and the signal received by each antenna element in one polarization direction can be input as one signal to the second combination splitter 22, that is, the second antenna unit group.
- a total of 2n signals are input to the second combining splitter 22, one of the 2n signals corresponds to one polarization direction of the n antenna elements, and the other n signal corresponds to the other of the n antenna elements. Polarization direction.
- the second combining splitter 22 After receiving the 2n signal, the second combining splitter 22 combines the n signals in one polarization direction into m signal outputs, and combines the n signals in the other polarization direction into m signal outputs. .
- m and n are integers greater than 1, m is less than or equal to n, and the ratio of m and n is not a fixed value, which can be determined by the performance index of the antenna and the implementation cost.
- Each receiving channel 3 is configured to receive one of the 2m signals. Therefore, the receiving channels 3 are arranged in pairs, and each pair of receiving channels 3 and 2m signals correspond to two signals in two different polarization directions, and each The receiving channel 3 is respectively used to receive two signals in two different polarization directions among the 2m road signals. Therefore, m pairs of receiving channels 3 can be correspondingly arranged in each of the second antenna devices.
- Each pair of receiving channels 3 in the pair of receiving channels 3 includes a receiving channel RX_M in the M polarization direction and a receiving channel RX_D in the D polarization direction, m to the receiving channel 3 are: RX_M1 and RX_D1, RX_M2 And RX_D2, ... RX_Mm and RX_Dm.
- each pair of receiving channels in the receiving channel 3 is an existing receiving channel, and the received signal can be subjected to analog-to-digital conversion and down-conversion processing to obtain an intermediate frequency signal. Therefore, the signal input to the active module 13 by the receiving channel 3 can be It is an intermediate frequency signal.
- the signal processing portion of the active module 13, such as the signal processor 132 shown in Fig. 3, can further convert the intermediate frequency signal input to the receiving channel 3 to obtain two baseband signals.
- two m-drive n-share split networks or a 2m-drive 2n split-segment network are correspondingly disposed by each second antenna device, and each second antenna device correspondingly sets m to receive channels 3 to implement 2R reception in the two polarization directions of the second antenna element group 21.
- the second antenna unit group 21, the m-drive n-shunt network, the m-pair receiving channel 3, and the active module 13 in the first antenna device in each of the second antenna devices can achieve a 2-channel reception performance gain.
- the second antenna device can also be used as a passive antenna, such as a RRU or a non-distributed base station.
- multiple antenna elements in the first antenna unit group 11 may be used.
- the received signal is set to the first frequency band
- the signal received by the plurality of antenna elements in the second antenna unit group 21 is set to the second frequency band, wherein the second frequency band includes the first frequency band and the second frequency band is greater than the first frequency band; Since the signal band received by the second antenna unit group 21 includes the signal band received by the first antenna unit group 11, the first frequency band of the signal output by each antenna element in the second antenna unit group 21 can be filtered out.
- the 2n signals input to the second combining splitter 22 are all located in the first frequency band, so that the 2m signals obtained after the second combining splitter 22 are combined are also located.
- the first frequency band is to achieve 2R reception in the two polarization directions of the second antenna element group 21. Further, all or part of the signals output by each antenna element in the second antenna unit group 21 except the first frequency band may be output to the RRU, the RRU module, or the non-distributed base station to implement the second antenna.
- the device is used as a passive antenna.
- At least one second filter 24 may be disposed in the second antenna device for filtering out the first frequency band of the signals received by the n antenna elements. And output to the second combiner 22 .
- the second filter 24 can be an existing resonator filter.
- the number of the second filters 24 may be equal to the number of antenna elements in the second antenna unit group 21, that is, n second filters 24 are disposed; wherein, each The second filter 24 may be provided with two input ports and two output ports for receiving signals received by one antenna element of the second antenna unit 21 in two polarization directions, and the first of the received signals The frequency band is filtered out and outputted to the second combiner 22, and the second combiner 22 performs a combined process.
- each of the second filters 24 may be disposed, and each of the second filters 24 may be provided with an input port and an output port, and each of the second filters 24 may be configured to receive the second antenna unit 21 a signal of an antenna element in a polarization direction, and filtering out a first frequency band of the received signal and outputting it to the second combining splitter 22, and then combining by the second combining splitter 22 Road processing.
- a second filter 24 may be further disposed, and 2n input ports and 2n output ports may be disposed on the second filter 24 for receiving signals of the n antenna elements in two polarization directions. And filtering out the first frequency band of the received signal and outputting it to the second combining splitter 22, and then performing the combining processing by the second combining splitter 22.
- the at least one second filter 24 is further configured to: output all or part of the received signals except the first frequency band.
- a second combining device 25 can be further disposed in the second antenna device, where the third combining splitter 25 can be used to remove the first frequency band from the signal output by the at least one second filter 24. All or part of the remaining signals are combined into two signals for outputting to the RRU, the RRU module or the non-distributed base station, wherein each signal corresponds to one polarization direction of the n antenna elements, thereby implementing the second antenna
- the device is used as a passive antenna.
- At least one second filter 24 may be disposed in the second antenna device, and may be used for the first frequency band of the 2m channel signals obtained after combining the second combining splitter 22 Filter out and output to m to receive channel 3.
- the number of the second filters 24 may be m, wherein each of the second filters 24 may be configured with two input ports and two output ports for receiving the second combining splitter 22 after combining Two signals of different 2m road signals in different polarization directions are obtained, and the first frequency band of the received signals is filtered out and outputted to m pair of receiving channels 3 in the receiving channel 3.
- each second filter 24 may be provided with one input port and one output port for receiving the 2m path obtained after the second combining splitter 22 is combined.
- a second filter 24 may be further disposed, and 2m input ports and 2m output ports may be disposed on the second filter 24 for receiving 2m obtained after the second combining splitter 22 is combined.
- the road signal is filtered out and outputted to the m-pair receiving channel 3 by the first frequency band of the received signal.
- the at least one second filter 24 may be further configured to: output the 2m channel signals obtained after the second combiner 22 is combined, among the remaining signals except the first frequency band All or part.
- the second antenna device 25 can further be disposed in the second antenna device, and the third combining splitter 25 can be used to remove the 2m channel signal output by the at least one second filter 24. All or part of the remaining signals outside the first frequency band are combined into two signals for output to the RRU, In the RRU module or non-distributed base station, the second antenna device is used as a passive antenna.
- the antenna system further includes: a radio remote unit module (not shown in the figure), where the radio remote unit module can be used to receive the two signals output by the third combiner 25 All or part of the remaining signals outside the first frequency band, and the two received signals are subjected to frequency conversion processing to obtain two baseband signals, and then sent to the baseband unit through the digital interface.
- each second antenna device is correspondingly configured with m-pair receive channels
- the reception in the two polarization directions of the second antenna element group is realized, and the reception performance gain of 4R or more of the antenna system is achieved.
- the signals received by the plurality of antenna elements in the first antenna unit group are set to the first frequency band
- the signals received by the plurality of antenna elements in the second antenna unit group are set to the second frequency band, so that the second The frequency band includes the first frequency band and the second frequency band has a larger range than the first frequency band.
- At least one second filter may be disposed between the second combiner and the receive channel, and the second The first frequency band of the signal received by each antenna element in the antenna unit group or the signal output by the second combination splitter is filtered out to achieve the first frequency band in the two polarization directions of the second antenna element group. 2R reception.
- the signal received by the at least one second filter may be outputted to the RRU, the RRU module, or the signal output of the remaining frequency bands except the first frequency band and obtained by combining the signals through the third combined splitter.
- the second antenna device is implemented for use as a passive antenna.
- FIG. 2 to FIG. 5 are each a case where the antenna system includes a second antenna device.
- the structure and function of each of the second antenna devices See the description in the above embodiment.
- the embodiment of the present invention further provides a base station system, where the base station system includes: an antenna system, where the antenna system includes: a first antenna device, at least one second antenna device, and at least one pair of receiving channels; the first antenna device includes: a first antenna unit group, a first combining splitter and an active module; the second antenna device comprises: a second antenna unit group and a second combining splitter;
- the first antenna unit group and the second antenna unit group each include a plurality of antenna elements, and the antenna elements are used for transmitting and receiving signals in two different polarization directions;
- a first combining splitter configured to combine signals received by multiple antenna elements in the first antenna unit group in two different polarization directions
- An active module configured to receive a signal that is combined by the first combining splitter, and perform frequency conversion processing on a signal that is combined in two different polarization directions by the first combining splitter to obtain a baseband signal
- a second combining splitter configured to combine signals received by the plurality of antenna elements in the second antenna element group in two different polarization directions
- Each of the second antenna devices further corresponds to at least one pair of receiving channels, and at least one pair of receiving channels are respectively configured to receive signals that are combined in two different polarization directions by the second combining splitter;
- the active module is further configured to perform frequency conversion processing on signals received by at least one pair of receiving channels to obtain a baseband signal.
- the second combiner can combine the 2n signals received by the n antenna elements in the second antenna unit group into two signals, and one of the 2n signals corresponds to one signal.
- the other n-channel signal corresponds to another polarization direction, and each of the two signals corresponds to one polarization direction, and n is an integer greater than one;
- Each of the second antenna devices may correspond to a pair of receiving channels for receiving two signals obtained after the second combining splitter is combined.
- the signals received by the multiple antenna elements in the first antenna unit group may be located in the first frequency band, and the signals received by the multiple antenna elements in the second antenna unit group are located in the second frequency band, where the second frequency band includes the first frequency band and The range of the second frequency band is larger than the first frequency band;
- At least one first filter may be disposed in the second antenna device, where the at least one first filter may filter out the first frequency band of the two signals obtained after the second combining splitter is combined. And outputting to a pair of receiving channels corresponding to the second antenna device.
- the at least one first filter may further output all or part of the remaining signals except the first frequency band among the two signals obtained after the second combining splitter is combined.
- the base station system provided by the embodiment of the present invention may further include:
- the radio remote unit may be configured to receive all or part of the two signals output by the at least one first filter in the antenna system, and perform frequency conversion processing on the received two signals to obtain two baseband signals, and then pass through the digital interface. Send to the baseband unit.
- the base station system provided by the embodiment of the present invention may further include:
- the non-distributed base station may be configured to receive all or part of the two signals output by the at least one first filter in the antenna system, and perform frequency conversion processing on the received two signals to obtain two baseband signals, and then pass the digital The interface is sent to the baseband unit.
- the second combining splitter may be further configured to: combine the 2n signals received by the n antenna elements in the second antenna unit group into a 2m road signal, and one of the 2n road signals The road signal corresponds to one polarization direction, and the other n signal corresponds to the other polarization direction.
- One of the 2m signals corresponds to one polarization direction, and the other m signal corresponds to the other polarization direction, n and m.
- Each of the second antenna devices corresponds to m pairs of receiving channels, and each pair of receiving channels can correspond to two signals in two different polarization directions of the 2m channel signals, and each pair of receiving channels is used for receiving 2m signals. Two signals in two different polarization directions.
- the signals received by the multiple antenna elements in the first antenna unit group may be located in the first frequency band, and the signals received by the multiple antenna elements in the second antenna unit group are located in the second frequency band, where the second frequency band includes the first frequency band and The range of the second frequency band is larger than the first frequency band;
- the second antenna device may further be provided with at least one second filter for filtering out the first frequency band of the signals received by the n antenna elements and outputting to the second combining splitter.
- the second antenna device may further be provided with at least one second filter for filtering out the first frequency band of the 2m signal obtained after the second combiner is combined, and outputting to the m pair receiving channel.
- the at least one second filter may also output all or part of the received signals other than the first frequency band.
- the second antenna device is further configured to: a third combining splitter, configured to combine all or part of the remaining signals of the at least one second filter output signal except the first frequency band to Two signals, each signal corresponding to one polarization direction.
- a third combining splitter configured to combine all or part of the remaining signals of the at least one second filter output signal except the first frequency band to Two signals, each signal corresponding to one polarization direction.
- the radio remote unit provided in the base station system may also be used to receive all or part of the two signals output by the third combining splitter in the antenna system, except for the first frequency band. Two signals obtained after all or part of the road is combined.
- the non-distributed base station provided in the base station system can also be used to receive all or part of the two signals output by the third combining splitter, and perform frequency conversion processing on the received two signals. After the two baseband signals are sent to the baseband unit through the digital interface.
- the specific structure and function of the antenna system provided by the embodiment of the present invention can be referred to the antenna system embodiment provided by the present invention.
- the specific connection manner between the antenna system and the radio remote unit RRU can also be seen in the antenna system embodiment. The related description will not be repeated here.
- the base station system provided in this embodiment is composed of an active antenna unit group and a passive antenna unit group.
- the antenna system after the signals received by the passive antenna unit group are combined by the splitter, the signals after the road are used, and the signals received by the receiving channel are subjected to frequency conversion processing to obtain a baseband signal. Due to the frequency processing, the antenna system composed of the active antenna unit group and the passive antenna unit group in the base station system can achieve 4 channels of reception performance gain or 4 channels or more of reception performance gain, that is, 4R and 4R or more are realized. Receive performance gains that improve system receive performance gains. Further, the passive antenna unit group can also be used as a passive antenna to meet different application scenarios.
- the embodiment of the present invention may further provide a communication system, including any one of the base station systems described above.
- the above-mentioned 4-channel or more-channel receiving in the embodiment of the present invention utilizes the signal splitting function of the first filter or the second filter, and the second splitting circuit
- the split function of the device, or the combined function of the third combiner may include changing the corresponding receive channel to the transceiver channel, using the signal of the first filter or the second filter
- the road function utilizes the combined function of the second combiner and/or the split function of the third combiner.
- the deformation can also have other forms. Since the transmitting process and the receiving process are usually reverse processes, the structure and implementation can also be used for reference. Therefore, no explanation is given here.
- the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
- the devices and/or devices mentioned in the embodiments of the present invention may be physically set independently or integrated.
- the second combiner and the first filter may be physically implemented by the same split network.
- the second filter and the second combiner are physically implemented by the same split network.
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Description
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Priority Applications (6)
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CA2867894A CA2867894C (en) | 2012-03-20 | 2012-03-20 | Antenna system, base station system and communication system |
CN201280000818.2A CN103329355B (zh) | 2012-03-20 | 2012-03-20 | 天线***、基站***和通信*** |
EP12741651.9A EP2814115B1 (en) | 2012-03-20 | 2012-03-20 | Antenna system, base station system and communication system |
JP2015500731A JP5866701B2 (ja) | 2012-03-20 | 2012-03-20 | アンテナシステム、基地局システム、及び通信システム |
PCT/CN2012/072604 WO2012103830A2 (zh) | 2012-03-20 | 2012-03-20 | 天线***、基站***和通信*** |
US13/718,976 US8588856B2 (en) | 2012-03-20 | 2012-12-18 | Antenna system and base station system |
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PCT/CN2012/072604 WO2012103830A2 (zh) | 2012-03-20 | 2012-03-20 | 天线***、基站***和通信*** |
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2012
- 2012-03-20 JP JP2015500731A patent/JP5866701B2/ja active Active
- 2012-03-20 CN CN201280000818.2A patent/CN103329355B/zh active Active
- 2012-03-20 WO PCT/CN2012/072604 patent/WO2012103830A2/zh active Application Filing
- 2012-03-20 EP EP12741651.9A patent/EP2814115B1/en active Active
- 2012-03-20 CA CA2867894A patent/CA2867894C/en active Active
- 2012-12-18 US US13/718,976 patent/US8588856B2/en active Active
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103718379A (zh) * | 2013-03-27 | 2014-04-09 | 华为技术有限公司 | 一种多频段有源天线 |
US9799942B2 (en) | 2013-03-27 | 2017-10-24 | Huawei Technologies Co., Ltd. | Multi-band active antenna |
CN103312366A (zh) * | 2013-05-31 | 2013-09-18 | 华为技术有限公司 | 有源天线、基站和抑制干扰的方法 |
CN103312366B (zh) * | 2013-05-31 | 2015-04-08 | 华为技术有限公司 | 有源天线、基站和抑制干扰的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP2814115A2 (en) | 2014-12-17 |
EP2814115A4 (en) | 2015-01-28 |
US20130252671A1 (en) | 2013-09-26 |
WO2012103830A3 (zh) | 2013-02-28 |
EP2814115B1 (en) | 2023-04-19 |
JP2015514345A (ja) | 2015-05-18 |
CA2867894C (en) | 2017-05-16 |
CN103329355A (zh) | 2013-09-25 |
CN103329355B (zh) | 2016-01-20 |
US8588856B2 (en) | 2013-11-19 |
CA2867894A1 (en) | 2012-08-09 |
JP5866701B2 (ja) | 2016-02-17 |
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