WO2014090038A1 - Signal interference processing method and apparatus, and relay device - Google Patents

Signal interference processing method and apparatus, and relay device Download PDF

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Publication number
WO2014090038A1
WO2014090038A1 PCT/CN2013/085197 CN2013085197W WO2014090038A1 WO 2014090038 A1 WO2014090038 A1 WO 2014090038A1 CN 2013085197 W CN2013085197 W CN 2013085197W WO 2014090038 A1 WO2014090038 A1 WO 2014090038A1
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WO
WIPO (PCT)
Prior art keywords
signal
antenna
interference
power
module
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Application number
PCT/CN2013/085197
Other languages
French (fr)
Chinese (zh)
Inventor
韩波
林华炯
吕林军
陈卫民
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2014090038A1 publication Critical patent/WO2014090038A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842Weighted combining
    • H04B7/086Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03891Spatial equalizers

Definitions

  • the present invention relates to the field of communications, and in particular, to a signal interference processing method, apparatus, and relay device.
  • a base station sends data to a core network through a network cable, but in a place where there is no wired resource or inconvenient to lay a line, such as a Gobi, a mountain, or the like, or, for example, a time zone after the earthquake
  • a line such as a Gobi, a mountain, or the like
  • the user equipment (User Equipment, UE for short) in the wireless backhaul technology sends data to the relay device, and then the relay sends the data to the remote base station, and then the remote base station sends the data to the core network.
  • Time division or frequency division is usually used to avoid interference between the data sent by the relay to the UE and the data sent by the remote base station to the relay.
  • Embodiments of the present invention provide a signal interference processing method, apparatus, and relay device to overcome the problem of reducing spectrum utilization efficiency caused by self-interference in a time division or frequency division method in the prior art.
  • An aspect of the present invention provides a signal interference processing apparatus, including: a power distribution module, a interference reconstruction module, and a power synthesis module;
  • the power distribution module is configured to acquire a first signal to be sent by the first antenna, separate a second signal of the first set power from the first signal, and input the second signal to the interference Reconstruction module;
  • the interference reconstruction module is configured to generate an interference cancellation signal according to the second signal, and input the interference cancellation signal to the power synthesis module;
  • the power combining module is configured to perform interference cancellation on the third signal received by the second antenna by using the interference cancellation signal.
  • the interference reconstruction module includes: a power distribution unit, a signal adjustment unit, and a power synthesis unit;
  • the power distribution unit is configured to separate the second signal into at least two sub-signals of a second set power, and input the at least two sub-signals to the signal adjusting unit;
  • the signal adjustment unit is configured to separately perform amplitude adjustment and/or delay adjustment on the sub-signal, and input the adjusted and/or delay-adjusted sub-signals to the power synthesis unit; And a synthesizing unit, configured to perform power synthesis on the adjusted and/or time-delayed sub-signals to generate the interference cancellation signal.
  • the second set powers of the at least two sub-signals are the same or different.
  • the first antenna and the second antenna are disposed in the The signal interferes with the processing device; or the first antenna and the second antenna are base station antennas.
  • the device further The method includes: at least one interface unit;
  • the interface unit is configured to input a third signal received by the second antenna, and output the third signal to the power synthesis module.
  • the interface unit is further configured to input the power distribution module to separate the first signal from the first a fourth signal obtained by setting a second signal of power, and outputting the fourth signal to the first antenna;
  • the interface unit includes: a filter, configured to: the first antenna The transmitted uplink signal and the downlink signal are spectrally separated; and/or, the uplink signal and the downlink signal transmitted by the second antenna are spectrally separated.
  • the interface unit further includes: a circulator; the circulator for transmitting the first antenna
  • the uplink signal and the downlink signal are time-separated; and/or, the uplink signal and the downlink signal transmitted by the second antenna are time-separated.
  • the method further includes: a radio frequency unit, configured to perform analog-to-digital conversion on the first signal, and convert the first signal into an analog signal Signal input to the power distribution module; or
  • the method further includes: accessing a digital processing unit, performing access processing on a third signal that has been interfered with, and The signal is transmitted to the digital processing unit of the base station.
  • the present invention provides a relay device comprising the signal interference processing device and the digital processing unit as described above;
  • the digital processing unit is configured to receive a third signal transmitted by the interference processing device, and perform packet filtering processing on the third signal.
  • the present invention provides a signal interference processing method, including:
  • the interference cancellation signal is used to perform interference cancellation on the third signal received by the second antenna.
  • the generating the interference cancellation signal according to the second signal includes:
  • the second set powers of the at least two sub-signals are the same or different.
  • the signal interference processing method, device, and relay device of the embodiment of the present invention are configured to obtain a first signal to be sent by the first antenna, and separate a second signal of the first set power from the first signal by using a power distribution module. And inputting the second signal to the interference reconstruction module, and then the interference reconstruction module is used to generate the interference cancellation signal for the second signal, and input the interference cancellation signal to the power synthesis module, and finally pass the power synthesis module for using the interference cancellation signal Interference cancellation is performed on the third signal received by the second antenna.
  • the signal transmitted by the first antenna interferes with the signal received by the second antenna, and the signal interference processing device provided by the second antenna does not pass the signal received by the second antenna and the signal to be transmitted by the first antenna. Time-division or frequency-division mode of transmission, thus avoiding the use of time division or frequency division, reducing the efficiency of spectrum use.
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a signal interference processing apparatus according to the present invention
  • FIG. 2 is a schematic structural diagram of a first embodiment of a feasible interference reconstruction module
  • 3 is a schematic diagram of the working principle of the first embodiment of the interference reconstruction module
  • Embodiment 4 is a schematic structural diagram of Embodiment 2 of a signal interference processing apparatus according to the present invention.
  • FIG. 5 is a schematic diagram showing the working principle of a relay device for setting a signal interference processing device according to the present invention
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a relay device according to the present invention
  • Embodiment 7 is a schematic structural diagram of Embodiment 2 of a relay device according to the present invention.
  • Embodiment 8 is a schematic structural diagram of Embodiment 3 of a relay device according to the present invention.
  • Embodiment 4 of a relay device is a schematic structural diagram of Embodiment 4 of a relay device according to the present invention.
  • FIG. 10 is a flowchart of Embodiment 1 of a signal interference processing method according to the present invention.
  • FIG. 11 is a flowchart of Embodiment 1 of a method for generating an interference cancellation signal 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.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Divided Multiple Access
  • FDMA Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Addressing
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • the signal interference processing apparatus may be disposed on a relay device, such as a relay, or may be set in a base station as a relay device.
  • a relay device such as a relay
  • the signal interference processing means can be used to process the interference of the transmitted signals of one of the antennas with the received signals of the other set of antennas.
  • the signal interference processing device includes: a power distribution module 10, an interference reconstruction module 11, and a power synthesis module 12.
  • the power distribution module 10 is configured to acquire a first signal to be transmitted by the first antenna 14, separate a second signal of the first set power from the first signal, and input the second signal to the interference reconstruction module 11.
  • the function of the power distribution module 10 can be implemented by a device such as a power splitter, a directional coupler, or the like.
  • the first antenna 14 and the second antenna 13 may be an antenna disposed on the relay device, or may be an antenna directly disposed on the signal interference processing device.
  • the first signal is the signal to be transmitted by the first antenna 14, and the third signal is the signal received by the second antenna 13.
  • the first signal to be sent by the first antenna 14 may be an uplink signal or a downlink signal.
  • the first signal may be sent to the relay device by the UE, and then sent by the first antenna of the relay device to the signal of the remote base station; if the first signal is a downlink signal, the first signal A signal may be sent to the relay device by the remote base station, and then sent by the relay device to the UE.
  • the power distribution module 10 can perform power allocation on the first signal, and separate the second signal from the first signal.
  • the specific power value of the first set power can be set according to actual requirements or empirical values, which is not limited herein.
  • the signal obtained by separating the second signal from the first signal needs to ensure that the normal requirements sent to the UE or the remote base station are met.
  • the interference reconstruction module 11 is configured to generate an interference cancellation signal according to the second signal, and input the interference cancellation signal to the power synthesis module 12.
  • the interference reconstruction module 11 may process the second signal by adjusting the amplitude and/or adjusting the phase to generate an interference cancellation signal.
  • the signal transmitted by the first antenna 14 can interfere with the signal received by the second antenna 13, and the signal received by the second antenna 13 is usually mixed with the signal transmitted by the first antenna 14, the present invention is implemented.
  • a second signal of a certain power is separated from the first signal to be transmitted by the first antenna 14 to perform interference cancellation on the third signal received by the second antenna 13.
  • the interference reconstruction module 11 can make the amplitude and/or phase of the received interference signal closer to the third signal received by the second antenna 13 by performing the process of adjusting the amplitude and/or adjusting the phase of the second signal. Signal of interference. It can be understood that the amplitude adjustment and/or phase adjustment performed by the interference reconstruction module 11 can be performed based on empirical values.
  • the power combining module 12 is configured to perform interference cancellation on the third signal received by the second antenna 13 by using the interference cancellation signal.
  • the function of the power synthesis module 12 can be implemented by means of a combiner, a power splitter, a coupler, and the like. Specifically, the power combining module 12 performs power synthesis on the interference cancellation signal and the third signal received by the second antenna 13, and cancels the interference signal in the third signal by using the interference cancellation signal, thereby canceling the interference, so The signal is closer to the signal received by the second antenna 13 in an ideal state.
  • the third signal received by the second antenna 13 may be an uplink signal or a downlink signal. If the third signal is an uplink signal, the third signal may be a signal sent by the UE received by the second antenna 13 of the relay device, and the relay device may further obtain the signal after the interference cancellation by the third signal. The signal is sent to the remote device; if the third signal is a downlink signal, the third signal may be a signal sent by the remote device received by the second antenna 13 of the relay device, and the relay device may also interfere with the third signal. The signal obtained after the cancellation is sent to the UE.
  • the first antenna and the second antenna according to the embodiment of the present invention may be directly disposed on the signal interference processing device, so that the existing relay device may not be used. Any improvement is made, and the function of signal transceiving is realized directly by the first antenna and the second antenna.
  • This modular signal interference processing device is easy to install.
  • the first antenna and the second antenna may be antennas on a relay device such as a base station, so that the signal interference processing device can utilize an antenna on the existing relay device, which can save cost.
  • the second signal of a certain power is separated from the first signal to be sent by the first antenna by the power distribution module, and the interference cancellation signal is generated according to the second signal by the interference reconstruction module.
  • the interference cancellation signal is used in the power synthesis module to perform interference cancellation on the third signal received by the second antenna. Thereby, the interference of the first antenna transmitting signal on the second antenna receiving signal is reduced, and the use efficiency of the spectrum is improved.
  • FIG. 2 is a schematic structural diagram of Embodiment 1 of a feasible interference reconstruction module.
  • the interference reconstruction module 11 includes: a power distribution unit 110, a signal adjustment unit 111, and power synthesis. Unit 112.
  • the power distribution unit 110 is configured to separate the second signal into at least two sub-signals of the second set power, and input at least two sub-signals to the signal adjusting unit 111.
  • FIG. 3 is a schematic diagram of the working principle of the first embodiment of the interference reconstruction module.
  • the power distribution unit 110 can separate the second signal into at least two of the second set powers.
  • the path signal, wherein the power of at least two sub-signals may be equal or unequal, and is not limited herein.
  • the signal adjusting unit 111 is configured to perform amplitude adjustment and/or delay adjustment on the sub-signals, respectively, and input the adjusted and/or time-delay adjusted sub-signals to the power synthesizing unit 112.
  • the signal adjusting unit 111 may separately perform amplitude adjustment and/or delay adjustment on each of the sub-signals, and the sub-signals after amplitude adjustment and/or delay adjustment may eliminate the signal interference processing apparatus.
  • the self-interference signal can also eliminate multipath self-interference caused by environmental reflection in the third signal received by the second antenna.
  • the amplitude adjusted by the signal adjustment unit 111 And the adjustment range of the delay may be fixed or may vary according to actual needs. Specifically, the amplitude adjustment and/or the delay adjustment are controlled by a specific algorithm, which is not limited by the present invention.
  • the power combining unit 112 is configured to perform power combining on the amplitude adjustment and/or the delay adjusted sub-signals to generate an interference cancellation signal.
  • the power combining unit 112 sends the generated interference cancellation signal to the power combining module 12 of Fig. 1.
  • the signal interference processing device may further include: at least one interface unit.
  • an interface unit configured to input a third signal received by the second antenna, and output the third signal to the power synthesis module.
  • the interface unit acts as an interface between the second antenna and the power synthesis module in the signal interference processing device.
  • the interface unit is further configured to: input the fourth signal obtained by the power distribution module separating the second signal of the first set power from the first signal, and output the fourth signal to the first antenna, the first antenna, Also used to transmit a fourth signal.
  • the interface unit can also serve as an interface between the first antenna and the power distribution module in the signal interference processing device.
  • FIG. 4 is a schematic structural diagram of Embodiment 2 of the signal interference processing apparatus according to the present invention. As shown in FIG. 4, this embodiment provides The signal interference processing device includes two interface units, the first antenna 14 is connected to the first interface unit 16, and the second antenna 13 is connected to the second interface unit 15.
  • a black solid line with an arrow indicates a transmission process of a signal, and the signal may be an uplink signal or a downlink signal, but the signal interference processing device 11 provided in this embodiment may receive simultaneously.
  • the uplink signal and the downlink signal that is, the second antenna 13 receives the downlink signal and also transmits the uplink signal, and the corresponding first antenna 14 also receives the uplink signal while transmitting the downlink signal.
  • the second antenna 13 can also receive the uplink signal and transmit the downlink signal, and the first antenna 14 adjusts accordingly.
  • the signal or the received signal that is specifically transmitted by the first antenna 14 and the second antenna 13 is not limited in this embodiment.
  • the embodiment introduces an interface unit, and the function thereof is to perform duplex transmission on the uplink signal and the downlink signal.
  • the signal interference processing device when the signal interference processing device is disposed on a base station of a Frequency Division Duplexing (FDD) mode as a relay device, the signal is dried.
  • the access processing unit of the interference processing device can be connected to the digital processing unit of the base station through a network cable.
  • the digital processing unit of the base station is mainly used for filtering the uplink signal or the downlink signal, and the signal interference processing device can receive the input of the digital processing unit. Filtered upstream or downstream signals.
  • the interface unit may include: a filter for performing spectral separation on the uplink signal and the downlink signal transmitted by the first antenna, and/or performing spectral separation on the uplink signal and the downlink signal transmitted by the second antenna.
  • the access digital processing unit of the signal interference processing device can communicate with the digital processing unit of the base station through the network cable.
  • the interface unit may further include: a circulator.
  • the circulator is used for time separation of the uplink signal and the downlink signal transmitted by the first antenna. And/or, performing time separation on the uplink signal and the downlink signal transmitted by the second antenna.
  • the signal interference processing device may further include an access digital processing unit, configured to perform access processing on the third signal that has been canceled by interference, and transmit the third signal to the digital processing unit of the base station.
  • an access digital processing unit configured to perform access processing on the third signal that has been canceled by interference, and transmit the third signal to the digital processing unit of the base station.
  • the access digital processing unit provided in the signal interference processing device may be connected to the digital processing unit in the base station as the relay device through the network cable, so that the signal interference processing device is set on the base station as the relay device. It is no longer necessary to modify and upgrade related modules and circuits inside the base station, which simplifies the installation process. Moreover, in the case where the access digital processing unit is integrated with the existing base station as the relay device, since the existing base station integrates the function of accessing the digital processing unit, the signal interference processing device may not include the access digital processing unit.
  • the present invention further provides an embodiment of a relay device, which may be a device of the type of Relay, NodeB, eNodeB, etc., on which the signal interference processing device provided by the embodiment of the present invention is disposed.
  • a relay device which may be a device of the type of Relay, NodeB, eNodeB, etc.
  • This embodiment uses a base station as a relay device as an example for description.
  • FIG. 5 is a schematic diagram of the working principle of a relay device for setting a signal interference processing device according to the present invention.
  • the relay device is composed of an existing base station and a signal interference processing device, and ensures a core network and a UE connected by the remote base station. The communication between the signal interference processing device and the digital processing unit of the existing base station is convenient.
  • the signal interference processing device can generate an interference cancellation signal according to the transmission signal of one of the antennas, and the interference cancellation signal is The received signals of the other set of antennas are combined to eliminate the interference of the transmitted signal on the received signal, thereby reducing the received signal of the first antenna and the received signal of the second antenna. Interference, improve the efficiency of spectrum use.
  • the digital processing unit in the base station as the relay device is configured to receive the third signal transmitted by the interference processing device, and perform filtering processing on the third signal.
  • the third signal may also have a residual interference signal, and the residual interference signal is filtered out by the digital processing unit in the base station as the relay device.
  • the relay device provided by the present invention has different internal structures in different implementation scenarios.
  • the following embodiments respectively describe relay devices in different scenarios.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a relay device according to the present invention. It should be noted that, as shown in FIG. 6, a solid black line with an arrow is an uplink signal, a black dotted line with an arrow is a downlink signal, and an uplink signal and
  • the downlink signal can be divided into multiple uplink signals and multiple downlink signals in the signal interference processing device, and each of the above-mentioned row signals and downlink signals in FIG. 6 is divided into two paths as an example for description.
  • a first antenna and a second antenna are disposed on the signal interference processing device of the relay device, and the first antenna and the second antenna may respectively include one or more antennas.
  • the base station serving as the relay device in this embodiment transmits signals in the FDD mode.
  • the access digital processing unit 18 of the signal interference processing device is connected to the digital processing unit 19 of the base station via a network cable.
  • the signal interference processing device can receive the downlink signal sent by the remote base station to the UE, and send the downlink signal to the UE.
  • the uplink signal sent by the UE to the remote base station can also be received, and the uplink signal is sent to the remote base station. Therefore, the first antenna shown in FIG. 6 can receive the downlink signal sent by the remote base station or the uplink signal to the remote base station.
  • the second antenna can receive the uplink signal sent by the UE or the downlink signal to the UE.
  • the interface unit may include the first filter 16 and the second filter for duplex transmission of the uplink signal and the downlink signal.
  • the first filter 16 is configured to perform frequency division transmission on the uplink signal received by the first antenna and the downlink signal to be transmitted.
  • the second filter 15 is configured to perform frequency division transmission on the downlink signal received by the second antenna and the uplink signal to be transmitted.
  • the group of radio frequency units includes: The transmit signal processing module 171 and the first receive signal processing module 172, and the other set of radio frequency units include: a second transmit signal processing module 173 and a second receive signal processing module 174.
  • the first antenna and the second antenna can also share a group of radio frequency units.
  • the first transmit signal processing module 171 is configured to convert the downlink signal to be sent received from the digital processing unit 19 in the existing base station from a digital signal to an analog signal, and The analog signal is transmitted to the third power distribution module 103 and the fourth power distribution module 104.
  • the first received signal processing module 172 converts the uplink signal received by the first antenna from an analog signal to a digital signal, and transmits it to the digital processing unit 19 for access processing. Specifically, the uplink signal received by the first antenna is combined with the second power combining module 122 and the second power combining module 122 to input the interference cancellation signal to the first received signal processing module 172.
  • the second transmit signal processing module 173 is configured to convert the uplink signal to be sent received from the access digital processing unit 18 from a digital signal to an analog signal, and transmit the analog signal to the first power distribution module 101 and the first Two power distribution modules 102.
  • the second received signal processing module 174 converts the downlink signal received by the second antenna from the analog signal into a digital signal, and transmits the signal to the access digital processing unit 18 for access processing. Specifically, the downlink signal received by the second antenna is combined with the fourth power combining module 123 and the fourth power combining module 124 to input the interference cancellation signal to the second received signal processing module 172.
  • the downlink device is processed by the relay device as an example for description.
  • the second antenna receives the downlink signal (ie, the third signal) sent by the remote base station, and the signal is an analog signal.
  • the second antenna transmits the downlink signal to the second filter 15. Since the second antenna also performs the uplink signal transmission, the second filter 15 performs the frequency division transmission processing on the downlink signal and the uplink signal to be transmitted, and The downlink signal is transmitted to the third power combining module 123 and the fourth power combining module 124.
  • the third power combining module 123 and the fourth power combining module 124 respectively correspond to one downlink signal received by the second antenna.
  • the third power distribution module 103 and the fourth power distribution module 104 acquire a downlink signal (ie, a first signal) to be transmitted by the first antenna, and separate a second power of the first set power from the downlink signal. Signaling, and transmitting the second signal to the interference reconstruction module 11, the interference reconstruction module 11 generating an interference cancellation signal according to the second signal.
  • the interference reconstruction module 11 may obtain the interference cancellation signal by using the technical solution shown in FIG. 3.
  • the interference reconstruction module 11 respectively inputs the interference cancellation signal to the third power synthesis module 123 and the fourth power synthesis module 124, and the second antenna receives the downlink signal sent by the remote base station for power synthesis, thereby canceling the first antenna.
  • the interference of the signal to the signal received by the second antenna are examples of the signals received by the second antenna.
  • the downlink signal after the interference cancellation signal synthesis processing is passed through the second receiving signal processing module 174 - accessing the digital processing unit 18 - the digital processing unit 19 of the existing base station
  • the second received signal processing module 174 converts the downlink signal from the analog signal to a digital signal, and inputs the signal to the access digital processing unit 18 to access the digital processing unit 18.
  • the downlink signal is subjected to access processing.
  • the access digital processing unit 18 inputs the downlink signal for completing the access processing to the digital processing unit 19 of the base station through the network cable, and the digital processing unit 19 of the base station performs corresponding filtering processing on the downlink signal.
  • the digital processing unit 19 of the base station transmits the filtered downlink signal to the transmit signal processing module in another set of radio frequency units through the Common Public Radio Interface (CRPI), that is, the first in FIG.
  • CRPI Common Public Radio Interface
  • the first transmit signal processing module 171 converts the downlink signal from a digital signal to an analog signal, and the downlink signal is converted from the digital signal to the analog signal by the first transmit signal processing module 171 to the third power.
  • the third power distribution module 103 and the fourth power distribution module 104 further perform power allocation on the downlink signal, and separate the signal of the first set power (ie, the second signal).
  • the interference reconstruction module 11 is sent to generate the interference cancellation signal to the power synthesis module, that is, the third power synthesis module 123 and the fourth power synthesis module 124 in FIG. 6 to enable the power synthesis module to use the interference cancellation signal and the second antenna.
  • the received downlink signal is then combined to cancel the signal interference.
  • the downlink signal ie, the fourth signal
  • the downlink signal obtained by separating the third power distribution module 103 and the fourth power distribution module 104 is transmitted to the first filter 16, and is transmitted to the UE through the first antenna.
  • the third power distribution module 103 and The fourth power distribution module 104 does not obtain the downlink signal to be sent, so the interference cancellation signal is not generated in the power combining module 11, and the downlink signal does not perform power synthesis processing when passing through the third power combining module 123 and the fourth power combining module 124.
  • the signal of the first set power ie, the second signal
  • the power combining module 11 can generate the signal according to the second signal. Interference cancellation signal.
  • the technical solution for processing the black solid line as the uplink signal in this embodiment is similar to the technical solution for processing the downlink signal in this embodiment.
  • the difference is that the uplink signal sent by the UE to the remote base station is received by the first antenna, and finally by the second. Antenna transmission.
  • the first antenna is used to receive the uplink signal and the downlink signal is sent
  • the second antenna is used to receive the downlink signal and send the uplink signal.
  • the mutual replacement of the function of the first antenna and the function of the second antenna does not affect the technical solution provided by the present invention, and thus is not limited.
  • FIG. 7 is a schematic structural diagram of a second embodiment of a relay device according to the present invention.
  • the technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again. It should be noted that, as shown in FIG. 7, when the interference processing apparatus in this embodiment is connected to the digital processing module of the base station transmitted in the TDD mode as the relay device, two circulators need to be added on the basis of FIG. The first circulator 20 and the second circulator 21.
  • the first circulator 20 and the second circulator 21 are used for time-division transmission processing of the up signal and the down signal.
  • the first circulator 20 and the second circulator 21 are configured to separate the uplink signal and the downlink signal into different RF channels for corresponding processing.
  • the second circulator 21 separates the uplink signal and the downlink signal to the second transmission signal processing module 173 and the second reception signal processing module 174, respectively, for corresponding processing.
  • FIG. 8 is a schematic structural diagram of a third embodiment of a relay device according to the present invention.
  • the technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again.
  • the interference processing apparatus in this embodiment is connected to the digital processing module 19 of the base station that is the FDD mode transmission of the relay device, the digital processing unit 19 on the base station is integrated with a group of radio frequency units, the number The processing unit 19 has a function of converting the analog signal and the digital signal to each other. At this time, it is necessary to replace a group of radio frequency units with the third filter 22 on the basis of FIG. 6 and connect to the digital processing unit 19 of the base station.
  • the third filter 22 is connected to the data processing unit 19 via a network cable, and the third filter 22 transmits the uplink signal sent to the data processing unit, as indicated by the black line with an arrow in FIG. 8, to the digital processing unit 19 for digital processing.
  • the downlink signal transmitted by the unit 19 to the third filter 22 is transmitted to the third power distribution module 103 and the fourth power distribution module 104.
  • FIG. 9 is a schematic structural diagram of Embodiment 4 of a relay device according to the present invention.
  • the technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again.
  • the interference processing apparatus in this embodiment is connected to the digital processing module 19 of the existing base station that transmits the FDD mode as the relay device, the digital processing unit 19 on the base station is integrated with the radio frequency unit, and The access digital processing unit 18 is integrated with the radio unit.
  • the access digital processing unit 18 has a function of converting an analog signal and a digital signal to each other. At this time, it is necessary to replace the fourth filter 23 with a group of radio frequency units connected to the access digital processing unit 18 on the basis of FIG.
  • a fourth filter 23 is connected to the access data processing unit 18 through the network cable for receiving the uplink signal sent by the digital processing unit 18, and transmitting the uplink signal to the A power distribution module 101 and a second power distribution module 102. Or receiving the downlink signal transmitted by the third power synthesizing module 123 and the fourth power synthesizing module 124, and transmitting the downlink signal to the access digital processing unit 18.
  • FIG. 10 is a flowchart of Embodiment 1 of a method for processing signal interference according to the present invention. As shown in FIG. 10, the method includes the following steps:
  • Step 100 Acquire a first signal to be sent by the first antenna.
  • the power distribution module in the signal interference processing device acquires the first signal to be transmitted by the first antenna.
  • the first signal may be an uplink signal or a downlink signal.
  • Step 101 Separate a second signal of the first set power from the first signal.
  • the power distribution module in the signal interference processing device separates the second signal of the first set power from the first signal.
  • the specific power value of the first set power may be set according to the actual demand or the experience value, which is not limited herein. It can be understood that the signal obtained after the first signal is separated from the second signal needs to ensure that the normal communication requirement is met. can.
  • Step 102 Generate an interference cancellation signal according to the second signal.
  • the interference reconstruction module in the signal interference processing device generates an interference cancellation signal according to the second signal.
  • Step 103 Perform interference cancellation on the third signal received by the second antenna by using the interference cancellation signal.
  • the power combining module in the signal interference processing device performs power combining the interference cancellation signal with the third signal received by the second antenna, thereby canceling the third signal received by the first antenna to be transmitted by the first antenna and the second antenna.
  • the third signal can also be an uplink signal or a downlink signal.
  • the first signal to be sent by the first antenna may be an uplink signal or a downlink signal, that is, the first antenna may be an interface antenna corresponding to the remote base station, or may be an interface antenna corresponding to the UE.
  • the second antenna may be an interface antenna corresponding to the UE, or may be an interface antenna corresponding to the remote base station.
  • the uplink signal and the downlink signal can be processed simultaneously. For example, when the first antenna is the corresponding antenna of the remote base station, the first antenna can receive the downlink signal sent by the remote base station and send the uplink signal to the remote base station.
  • the second antenna can receive the uplink signal sent by the UE, and simultaneously send the downlink signal to the UE.
  • the method provided in this embodiment uses the technical solution provided in FIG. 1 to implement similar technical effects, and details are not described herein again.
  • FIG. 11 is a flowchart of Embodiment 1 of a method for generating an interference cancellation signal according to the present invention. As shown in FIG. 11, for step 102, an interference cancellation signal may be generated by the following steps:
  • Step 102a Separating the second signal into at least two sub-signals of the second set power.
  • the power distribution unit in the interference reconstruction module separates the second signal into at least two sub-signals of the second set power.
  • the second set power of the at least two sub-signals is the same or different, and is not limited herein.
  • Step 102b performing amplitude adjustment and/or delay adjustment on the sub-signals respectively.
  • the signal adjustment unit in the interference reconstruction module performs amplitude adjustment and/or delay adjustment on the sub-signals, respectively.
  • the signal adjusting unit may separately perform amplitude adjustment and/or delay adjustment on each sub-signal, and the sub-signal after amplitude adjustment and/or delay adjustment may cancel the self-interference signal of the signal interference processing device, and may also eliminate the Multipath self-interference caused by environmental reflection in the third signal received by the two antennas.
  • the amplitude adjusted by the signal adjustment unit and the adjustment range of the delay may be fixed or may be changed according to actual needs.
  • Step 102c Perform power synthesis on the amplitude-adjusted and/or delay-adjusted sub-signals to generate an interference cancellation signal.
  • the power combining unit in the interference reconstruction module performs power synthesis on the amplitude-adjusted and/or time-delay-adjusted sub-signals to generate an interference cancellation signal.
  • the interference cancellation signal is generated by referring to the technical solution shown in FIG. 3.
  • the method for generating an interference cancellation signal provided in this embodiment uses the technical solution provided in FIG. 3 to implement similar technical effects, and details are not described herein again.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as ROM, RAM, disk or optical disk.

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Abstract

Provided are a signal interference processing method and apparatus and a relay device. The signal interference processing apparatus of the present invention comprises: a power allocation module, an interference reconstruction module and a power synthesis module, wherein the power allocation module is used for acquiring a first signal to be sent by a first antenna, separating a second signal with a first set power from the first signal, and inputting the second signal into the interference reconstruction module; the interference reconstruction module is used for generating an interference cancellation signal using the second signal, and inputting the interference cancellation signal into the power synthesis module; and the power synthesis module is used for performing interference cancellation on a third signal received by a second antenna using the interference cancellation signal. The interference of the signal emitted by the first antenna to the signal received by the second antenna is avoided, and at the same time, the utilization efficiency of frequency spectrums is reduced when using the manner of time division or frequency division is avoided.

Description

信号干扰处理方法、 装置及中继设备  Signal interference processing method, device and relay device
本申请要求于 2012 年 12 月 11 日提交中国专利局、 申请号为 201210531488. 1、 发明名称为 "信号干扰处理方法、 装置及中继设备" 的中 国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 This application claims priority to Chinese Patent Application No. 201210531488. Combined in this application. Technical field
本发明涉及通信领域, 尤其涉及一种信号干扰处理方法、 装置及中继设 备。 背景技术 在目前的基站***中, 基站将数据通过网线发送至核心网, 但是, 在没 有有线资源或者不方便铺设线路的地方, 例如戈壁、 高山等地形, 又或者, 例如震后灾区等时间性紧迫的场景, 为基站***铺设光纤网络不够现实, 因 此针对基站***的无线回程技术 (Wireless Backhual ) 有效解决了上述场 景的问题。  The present invention relates to the field of communications, and in particular, to a signal interference processing method, apparatus, and relay device. BACKGROUND In a current base station system, a base station sends data to a core network through a network cable, but in a place where there is no wired resource or inconvenient to lay a line, such as a Gobi, a mountain, or the like, or, for example, a time zone after the earthquake In the urgent scenario, it is not realistic to lay a fiber network for the base station system. Therefore, the wireless backhaul technology for the base station system effectively solves the above problem.
现有技术中, 无线回程技术中用户设备 (User Equipment , 简称 UE ) 将数据发送给中继设备(Relay) , 再由 Relay发送给远端的基站, 进而由远 端的基站发送至核心网。 通常采用时分或者频分方式来避免 Relay 发送给 UE的数据和远端的基站发送给 Relay的数据之间所产生的干扰。  In the prior art, the user equipment (User Equipment, UE for short) in the wireless backhaul technology sends data to the relay device, and then the relay sends the data to the remote base station, and then the remote base station sends the data to the core network. Time division or frequency division is usually used to avoid interference between the data sent by the relay to the UE and the data sent by the remote base station to the relay.
但是, 这种采用时分或频分的方法, 会降低频谱的使用效率。 发明内容 本发明实施例提供一种信号干扰处理方法、 装置及中继设备, 以克服现 有技术中采用时分或频分的方法避免自干扰, 造成的降低频谱使用效率的问 题。  However, this method of using time division or frequency division will reduce the efficiency of spectrum usage. SUMMARY OF THE INVENTION Embodiments of the present invention provide a signal interference processing method, apparatus, and relay device to overcome the problem of reducing spectrum utilization efficiency caused by self-interference in a time division or frequency division method in the prior art.
本发明一方面, 提供一种信号干扰处理装置, 包括: 功率分配模块、 干 扰重建模块和功率合成模块;  An aspect of the present invention provides a signal interference processing apparatus, including: a power distribution module, a interference reconstruction module, and a power synthesis module;
所述功率分配模块, 用于获取第一天线待发送的第一信号, 从所述第一 信号中分离出第一设定功率的第二信号, 并将所述第二信号输入至所述干扰 重建模块; The power distribution module is configured to acquire a first signal to be sent by the first antenna, separate a second signal of the first set power from the first signal, and input the second signal to the interference Reconstruction module;
所述干扰重建模块, 用于根据所述第二信号生成干扰抵消信号, 并将所 述干扰抵消信号输入至所述功率合成模块;  The interference reconstruction module is configured to generate an interference cancellation signal according to the second signal, and input the interference cancellation signal to the power synthesis module;
所述功率合成模块, 用于采用所述干扰抵消信号对第二天线接收的第三 信号进行干扰抵消。  And the power combining module is configured to perform interference cancellation on the third signal received by the second antenna by using the interference cancellation signal.
本发明第一方面的第一种可能的实现方式, 所述干扰重建模块包括: 功 率分配单元、 信号调整单元和功率合成单元;  A first possible implementation manner of the first aspect of the present invention, the interference reconstruction module includes: a power distribution unit, a signal adjustment unit, and a power synthesis unit;
所述功率分配单元, 用于将所述第二信号分离成第二设定功率的至少两 路子信号, 并将所述至少两路子信号输入至所述信号调整单元;  The power distribution unit is configured to separate the second signal into at least two sub-signals of a second set power, and input the at least two sub-signals to the signal adjusting unit;
所述信号调整单元, 用于分别对所述子信号进行幅值调整和 /或时延调 整, 并将经过调整和 /或时延调整后的子信号输入至所述功率合成单元; 所述功率合成单元, 用于对经过调整和 /或时延调整后的子信号进行功 率合成, 生成所述干扰抵消信号。  The signal adjustment unit is configured to separately perform amplitude adjustment and/or delay adjustment on the sub-signal, and input the adjusted and/or delay-adjusted sub-signals to the power synthesis unit; And a synthesizing unit, configured to perform power synthesis on the adjusted and/or time-delayed sub-signals to generate the interference cancellation signal.
结合本发明第一方面的第一种可能的实现方式,在第二种可能的实现方 式中, 所述至少两路子信号的第二设定功率相同或不同。  In conjunction with the first possible implementation of the first aspect of the present invention, in a second possible implementation, the second set powers of the at least two sub-signals are the same or different.
结合本发明第一方面或者第一方面的第一种可能的实现方式或者第二 种可能的实现方式, 在第三种可能的实现方式中, 所述第一天线和第二天线 设置在所述信号干扰处理装置上; 或者, 所述第一天线和第二天线为基站天 线。  With reference to the first aspect of the present invention or the first possible implementation or the second possible implementation of the first aspect, in a third possible implementation, the first antenna and the second antenna are disposed in the The signal interferes with the processing device; or the first antenna and the second antenna are base station antennas.
结合本发明第一方面的第三种可能的实现方式,在第四种可能的实现方 式中, 若所述第一天线和第二天线设置在所述信号干扰处理装置上, 则所述 装置还包括: 至少一个接口单元;  With reference to the third possible implementation manner of the first aspect of the present invention, in a fourth possible implementation, if the first antenna and the second antenna are disposed on the signal interference processing device, the device further The method includes: at least one interface unit;
所述接口单元, 用于输入所述第二天线接收的第三信号, 并将所述第三 信号输出至所述功率合成模块。  The interface unit is configured to input a third signal received by the second antenna, and output the third signal to the power synthesis module.
结合本发明第一方面的第四种可能的实现方式,在第五种可能的实现方 式中, 所述接口单元, 还用于输入所述功率分配模块将所述第一信号中分离 出第一设定功率的第二信号后得到的第四信号, 并将所述第四信号输出至所 述第一天线;  With reference to the fourth possible implementation manner of the first aspect of the present invention, in a fifth possible implementation, the interface unit is further configured to input the power distribution module to separate the first signal from the first a fourth signal obtained by setting a second signal of power, and outputting the fourth signal to the first antenna;
所述第一天线, 还用于发射所述第四信号。 结合本发明第一方面的第四种可能的实现方式或者第五种可能的实现 方式, 在第六种可能的实现方式中, 所述接口单元包括: 滤波器, 用于对所 述第一天线传输的上行信号和下行信号进行频谱分离; 和 /或, 对所述第二 天线传输的上行信号和下行信号进行频谱分离。 The first antenna is further configured to transmit the fourth signal. With reference to the fourth possible implementation or the fifth possible implementation manner of the first aspect of the present disclosure, in a sixth possible implementation, the interface unit includes: a filter, configured to: the first antenna The transmitted uplink signal and the downlink signal are spectrally separated; and/or, the uplink signal and the downlink signal transmitted by the second antenna are spectrally separated.
结合本发明第一方面的第六种可能的实现方式,在第七种可能的实现方 式中, 所述接口单元还包括: 环形器; 所述环形器, 用于对所述第一天线传 输的上行信号和下行信号进行时间分离; 和 /或, 对所述第二天线传输的上 行信号和下行信号进行时间分离。  With the sixth possible implementation of the first aspect of the present invention, in a seventh possible implementation, the interface unit further includes: a circulator; the circulator for transmitting the first antenna The uplink signal and the downlink signal are time-separated; and/or, the uplink signal and the downlink signal transmitted by the second antenna are time-separated.
结合第一方面的上述各种可能的实现方式, 在第九种可能的实现方式 中, 还包括: 射频单元, 用于对所述第一信号进行模数转换, 将转化为模拟 信号的第一信号输入给所述功率分配模块; 或者,  In conjunction with the foregoing various possible implementations of the first aspect, in a ninth possible implementation, the method further includes: a radio frequency unit, configured to perform analog-to-digital conversion on the first signal, and convert the first signal into an analog signal Signal input to the power distribution module; or
用于对所述第三信号进行模数转换,将转化为数字信号的第三信号输入 给所述功率合成模块。  And performing analog-to-digital conversion on the third signal, and inputting a third signal converted into a digital signal to the power synthesis module.
结合第一方面的上述各种可能的实现方式, 在第十种可能的实现方式 中, 还包括: 接入数字处理单元, 用于对已经干扰抵消的第三信号进行接入 处理, 将第三信号传输给基站的数字处理单元。  With reference to the foregoing various possible implementations of the first aspect, in a tenth possible implementation, the method further includes: accessing a digital processing unit, performing access processing on a third signal that has been interfered with, and The signal is transmitted to the digital processing unit of the base station.
第二方面, 本发明提供一种中继设备, 包括如上述所述的信号干扰处理 装置和数字处理单元;  In a second aspect, the present invention provides a relay device comprising the signal interference processing device and the digital processing unit as described above;
所述数字处理单元, 用于接收干扰处理装置传输的第三信号, 并对所述 第三信号进行数据包过滤处理。  The digital processing unit is configured to receive a third signal transmitted by the interference processing device, and perform packet filtering processing on the third signal.
第三方面、 本发明提供一种信号干扰处理方法, 包括:  In a third aspect, the present invention provides a signal interference processing method, including:
获取第一天线待发送的第一信号;  Obtaining a first signal to be sent by the first antenna;
从所述第一信号中分离出第一设定功率的第二信号;  Separating a second signal of the first set power from the first signal;
根据所述第二信号生成干扰抵消信号;  Generating an interference cancellation signal according to the second signal;
采用所述干扰抵消信号对第二天线接收的第三信号进行干扰抵消。 在第三方面的第一种可能的实现方式中,所述根据所述第二信号生成干 扰抵消信号, 包括:  The interference cancellation signal is used to perform interference cancellation on the third signal received by the second antenna. In a first possible implementation manner of the third aspect, the generating the interference cancellation signal according to the second signal includes:
将所述第二信号分离成第二设定功率的至少两路子信号;  Separating the second signal into at least two sub-signals of a second set power;
分别对所述子信号进行幅值调整和 /或时延调整; 对经过调整和 /或时延调整后的子信号进行功率合成, 生成所述干扰抵 消信号。 Performing amplitude adjustment and/or delay adjustment on the sub-signals respectively; Performing power synthesis on the adjusted and/or time-delayed sub-signals to generate the interference cancellation signal.
结合第三方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述至少两路子信号的第二设定功率相同或不同。  In conjunction with the first possible implementation of the third aspect, in a second possible implementation, the second set powers of the at least two sub-signals are the same or different.
本发明实施例信号干扰处理方法、装置及中继设备,通过功率分配模块, 用于获取第一天线待发送的第一信号, 从第一信号中分离出第一设定功率的 第二信号, 并将第二信号输入至干扰重建模块, 再由干扰重建模块, 用于第 二信号生成干扰抵消信号, 并将干扰抵消信号输入至功率合成模块, 最终通 过功率合成模块,用于采用干扰抵消信号对第二天线接收的第三信号进行干 扰抵消。 避免了第一天线发射出去的信号对于第二天线接收到的信号的干 扰, 同时, 本实施例提供的信号干扰处理装置并没有将第二天线接收到的信 号与第一天线待发射的信号通过时分或者频分方式进行传输的方式, 这样避 免了采用时分或者频分的方式时, 降低频谱的使用效率。 附图说明  The signal interference processing method, device, and relay device of the embodiment of the present invention are configured to obtain a first signal to be sent by the first antenna, and separate a second signal of the first set power from the first signal by using a power distribution module. And inputting the second signal to the interference reconstruction module, and then the interference reconstruction module is used to generate the interference cancellation signal for the second signal, and input the interference cancellation signal to the power synthesis module, and finally pass the power synthesis module for using the interference cancellation signal Interference cancellation is performed on the third signal received by the second antenna. The signal transmitted by the first antenna interferes with the signal received by the second antenna, and the signal interference processing device provided by the second antenna does not pass the signal received by the second antenna and the signal to be transmitted by the first antenna. Time-division or frequency-division mode of transmission, thus avoiding the use of time division or frequency division, reducing the efficiency of spectrum use. DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下 面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在 不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。  In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.
图 1为本发明信号干扰处理装置实施例一的结构示意图;  1 is a schematic structural diagram of Embodiment 1 of a signal interference processing apparatus according to the present invention;
图 2为一种可行的干扰重建模块实施例一的结构示意图;  2 is a schematic structural diagram of a first embodiment of a feasible interference reconstruction module;
图 3为干扰重建模块实施例一的工作原理示意图;  3 is a schematic diagram of the working principle of the first embodiment of the interference reconstruction module;
图 4为本发明信号干扰处理装置实施例二的结构示意图;  4 is a schematic structural diagram of Embodiment 2 of a signal interference processing apparatus according to the present invention;
图 5为本发明设置信号干扰处理装置的中继设备的工作原理示意图; 图 6为本发明中继设备实施例一的结构示意图;  5 is a schematic diagram showing the working principle of a relay device for setting a signal interference processing device according to the present invention; FIG. 6 is a schematic structural diagram of Embodiment 1 of a relay device according to the present invention;
图 7为本发明中继设备实施例二的结构示意图;  7 is a schematic structural diagram of Embodiment 2 of a relay device according to the present invention;
图 8为本发明中继设备实施例三的结构示意图;  8 is a schematic structural diagram of Embodiment 3 of a relay device according to the present invention;
图 9为本发明中继设备实施例四的结构示意图;  9 is a schematic structural diagram of Embodiment 4 of a relay device according to the present invention;
图 10为本发明信号干扰处理方法实施例一的流程图  FIG. 10 is a flowchart of Embodiment 1 of a signal interference processing method according to the present invention;
图 11为本发明生成干扰抵消信号方法实施例一的流程图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本发 明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例是本发明一部分实施例, 而不是全部的实施例。 基于 本发明中的实施例, 本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都属于本发明保护的范围。 FIG. 11 is a flowchart of Embodiment 1 of a method for generating an interference cancellation signal 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. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.
本文中描述的技术可用于各种通信***, 例如当前 2G, 3G通信***和下 一代通信***, 例如全球移动通信*** (GSM, Global System for Mobi le communications ) , 码分多址 ( CDMA , Code Division Multiple Access ) ***, 时分多址 (TDMA , Time Division Multiple Access ) ***, 宽带码 分多址 (WCDMA, Wideband Code Divi sion Multiple Access Wireless ) , 频分多址 ( FDMA , Frequency Division Multiple Addressing) ***, 正交 步员分多址 ( 0FDMA , Orthogonal Frequency-Division Multiple Access ) 系 统,单载波 FDMA ( SC-FDMA)***,通用分组无线业务(GPRS , General Packet Radio Service ) ***, 长期演进 ( LTE , Long Term Evolution ) ***, 以 及其他此类通信***。  The techniques described herein can be used in a variety of communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA, Code Division). Multiple Access) system, Time Division Multiple Access (TDMA) system, Wideband Code Divided Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Frequency Division Multiple Addressing (FDMA) system, positive 0FDMA (Orthogonal Frequency-Division Multiple Access) system, single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE, Long Term Evolution) ) systems, and other such communication systems.
图 1为本发明信号干扰处理装置实施例一的结构示意图, 参照图 1, 该信 号干扰处理装置可以设置在中继设备上, 例如: Relay上, 或者, 还可以设 置在作为中继设备的基站上, 例如: NodeB , eNodeB等类型的基站。 而上述 中继设备具有两组天线, 该信号干扰处理装置可以用于对其中一组天线的发 射信号对另一组天线的接收信号的干扰进行处理。  1 is a schematic structural diagram of Embodiment 1 of a signal interference processing apparatus according to the present invention. Referring to FIG. 1, the signal interference processing apparatus may be disposed on a relay device, such as a relay, or may be set in a base station as a relay device. Above, for example: NodeB, eNodeB and other types of base stations. The above relay device has two sets of antennas, and the signal interference processing means can be used to process the interference of the transmitted signals of one of the antennas with the received signals of the other set of antennas.
该信号干扰处理装置包括: 功率分配模块 10、 干扰重建模块 11、 功率合 成模块 12。  The signal interference processing device includes: a power distribution module 10, an interference reconstruction module 11, and a power synthesis module 12.
功率分配模块 10, 用于获取第一天线 14待发送的第一信号, 从第一信号 中分离出第一设定功率的第二信号, 并将第二信号输入至干扰重建模块 11。  The power distribution module 10 is configured to acquire a first signal to be transmitted by the first antenna 14, separate a second signal of the first set power from the first signal, and input the second signal to the interference reconstruction module 11.
功率分配模块 10的功能可以采用功分器、 定向耦合器等器件实现。 本实 施例中, 第一天线 14和第二天线 13可以是设置在中继设备上的天线, 或者, 还可以是直接设置在该信号干扰处理装置上的天线。第一信号为第一天线 14 待发送的信号, 第三信号为第二天线 13接收的信号。 具体的, 第一天线 14待发送的第一信号可以是上行信号, 也可是下行信 号。 如果第一信号是上行信号, 则该第一信号可以为 UE发送给中继设备, 再 由中继设备的第一天线发送给远端基站的信号; 如果第一信号为下行信号, 则该第一信号可以为远端基站发送给中继设备, 再由中继设备发送给 UE的信 号。 功率分配模块 10可以对第一信号进行功率分配, 从第一信号中分离第二 信号, 第一设定功率的具体功率值可以根据实际需求或者经验值来设置, 此 处不做限定, 可以理解的是, 第一信号分离出第二信号后得到的信号需要保 证满足发送给 UE或者远端基站的正常需求即可。 The function of the power distribution module 10 can be implemented by a device such as a power splitter, a directional coupler, or the like. In this embodiment, the first antenna 14 and the second antenna 13 may be an antenna disposed on the relay device, or may be an antenna directly disposed on the signal interference processing device. The first signal is the signal to be transmitted by the first antenna 14, and the third signal is the signal received by the second antenna 13. Specifically, the first signal to be sent by the first antenna 14 may be an uplink signal or a downlink signal. If the first signal is an uplink signal, the first signal may be sent to the relay device by the UE, and then sent by the first antenna of the relay device to the signal of the remote base station; if the first signal is a downlink signal, the first signal A signal may be sent to the relay device by the remote base station, and then sent by the relay device to the UE. The power distribution module 10 can perform power allocation on the first signal, and separate the second signal from the first signal. The specific power value of the first set power can be set according to actual requirements or empirical values, which is not limited herein. The signal obtained by separating the second signal from the first signal needs to ensure that the normal requirements sent to the UE or the remote base station are met.
干扰重建模块 11, 用于根据第二信号生成干扰抵消信号, 并将干扰抵消 信号输入至功率合成模块 12。  The interference reconstruction module 11 is configured to generate an interference cancellation signal according to the second signal, and input the interference cancellation signal to the power synthesis module 12.
具体的, 干扰重建模块 11接收到功率分配模块 10输入的第二信号后, 干 扰重建模块 11可以采用调整幅值和 /或调整相位的方式对第二信号进行处 理, 生成干扰抵消信号。 需要说明的是, 由于第一天线 14发送的信号能够对 第二天线 13接收的信号产生干扰, 而第二天线 13接收的信号中通常混杂有第 一天线 14发送的信号, 因此, 本发明实施例中, 从第一天线 14待发送的第一 信号中分离出一定功率的第二信号来对第二天线 13接收到的第三信号进行 干扰抵消。 而干扰重建模块 11可以通过对第二信号进行调整幅值和 /或调整 相位的处理而使得到的干扰信号的幅值和 /或相位更接近于对第二天线 13接 收到的第三信号产生干扰的信号。 可以理解的是, 干扰重建模块 11所进行的 幅值调整和 /或相位调整可以根据经验值进行。  Specifically, after the interference reconstruction module 11 receives the second signal input by the power distribution module 10, the interference reconstruction module 11 may process the second signal by adjusting the amplitude and/or adjusting the phase to generate an interference cancellation signal. It should be noted that, since the signal transmitted by the first antenna 14 can interfere with the signal received by the second antenna 13, and the signal received by the second antenna 13 is usually mixed with the signal transmitted by the first antenna 14, the present invention is implemented. In an example, a second signal of a certain power is separated from the first signal to be transmitted by the first antenna 14 to perform interference cancellation on the third signal received by the second antenna 13. The interference reconstruction module 11 can make the amplitude and/or phase of the received interference signal closer to the third signal received by the second antenna 13 by performing the process of adjusting the amplitude and/or adjusting the phase of the second signal. Signal of interference. It can be understood that the amplitude adjustment and/or phase adjustment performed by the interference reconstruction module 11 can be performed based on empirical values.
功率合成模块 12,用于采用干扰抵消信号对第二天线 13接收的第三信号 进行干扰抵消。  The power combining module 12 is configured to perform interference cancellation on the third signal received by the second antenna 13 by using the interference cancellation signal.
功率合成模块 12的功能可以采用合路器、功分器、耦合器等器件来实现。 具体的, 功率合成模块 12将干扰抵消信号与第二天线 13接收的第三信号进行 功率合成, 通过干扰抵消信号将第三信号中的干扰信号抵消, 由于抵消了干 扰, 因此, 合成后得到的信号更接近于第二天线 13理想状态下接收的信号。  The function of the power synthesis module 12 can be implemented by means of a combiner, a power splitter, a coupler, and the like. Specifically, the power combining module 12 performs power synthesis on the interference cancellation signal and the third signal received by the second antenna 13, and cancels the interference signal in the third signal by using the interference cancellation signal, thereby canceling the interference, so The signal is closer to the signal received by the second antenna 13 in an ideal state.
需要说明的是, 第二天线 13接收的第三信号可以为上行信号或下行信 号。 如果第三信号是上行信号, 则该第三信号可以是中继设备的第二天线 13 接收的 UE发送的信号, 中继设备还可以将该第三信号经过干扰抵消后得到的 信号发送给远端设备; 如果第三信号是下行信号, 则第三信号可以是中继设 备的第二天线 13接收的远端设备发送的信号, 中继设备还可以将该第三信号 经过干扰抵消后得到的信号发送给 UE。 It should be noted that the third signal received by the second antenna 13 may be an uplink signal or a downlink signal. If the third signal is an uplink signal, the third signal may be a signal sent by the UE received by the second antenna 13 of the relay device, and the relay device may further obtain the signal after the interference cancellation by the third signal. The signal is sent to the remote device; if the third signal is a downlink signal, the third signal may be a signal sent by the remote device received by the second antenna 13 of the relay device, and the relay device may also interfere with the third signal. The signal obtained after the cancellation is sent to the UE.
可选的, 为了便于使用本发明实施例涉及的信号干扰处理装置, 本发明 实施例涉及的第一天线和第二天线可以直接设置在该信号干扰处理装置上, 从而可以不对现有中继设备进行任何改进, 而直接由第一天线和第二天线来 实现信号收发的功能, 这种模块化的信号干扰处理装置便于安装。  Optionally, in order to facilitate the use of the signal interference processing device according to the embodiment of the present invention, the first antenna and the second antenna according to the embodiment of the present invention may be directly disposed on the signal interference processing device, so that the existing relay device may not be used. Any improvement is made, and the function of signal transceiving is realized directly by the first antenna and the second antenna. This modular signal interference processing device is easy to install.
或者, 第一天线和第二天线可以为基站等中继设备上的天线, 这样信号 干扰处理装置可以利用现有的中继设备上的天线, 可以节约成本。  Alternatively, the first antenna and the second antenna may be antennas on a relay device such as a base station, so that the signal interference processing device can utilize an antenna on the existing relay device, which can save cost.
本实施例提供的信号干扰处理装置,通过功率分配模块从第一天线待发 送的第一信号中分离出一定功率的第二信号, 并通过干扰重建模块根据该第 二信号生成干扰抵消信号, 在功率合成模块中采用干扰抵消信号对第二天线 接收的第三信号进行干扰抵消。从而降低了第一天线发射信号对第二天线接 收信号的干扰, 提高频谱的使用效率。  The signal interference processing apparatus provided in this embodiment, the second signal of a certain power is separated from the first signal to be sent by the first antenna by the power distribution module, and the interference cancellation signal is generated according to the second signal by the interference reconstruction module. The interference cancellation signal is used in the power synthesis module to perform interference cancellation on the third signal received by the second antenna. Thereby, the interference of the first antenna transmitting signal on the second antenna receiving signal is reduced, and the use efficiency of the spectrum is improved.
在图 1所示实施例的基础上, 图 2为一种可行的干扰重建模块实施例一的 结构示意图, 参照图 2, 干扰重建模块 11包括: 功率分配单元 110、 信号调整 单元 111、 功率合成单元 112。  On the basis of the embodiment shown in FIG. 1, FIG. 2 is a schematic structural diagram of Embodiment 1 of a feasible interference reconstruction module. Referring to FIG. 2, the interference reconstruction module 11 includes: a power distribution unit 110, a signal adjustment unit 111, and power synthesis. Unit 112.
功率分配单元 110, 用于将第二信号分离成第二设定功率的至少两路子 信号, 并将至少两路子信号输入至信号调整单元 111。  The power distribution unit 110 is configured to separate the second signal into at least two sub-signals of the second set power, and input at least two sub-signals to the signal adjusting unit 111.
在图 2所示实施例的基础上, 图 3为干扰重建模块实施例一的工作原理示 意图, 参照图 2以及 3, 功率分配单元 110可以将第二信号分离成第二设定功 率的至少两路子信号,其中,至少两路子信号的功率可以相等也可以不相等, 此处不予限定。  On the basis of the embodiment shown in FIG. 2, FIG. 3 is a schematic diagram of the working principle of the first embodiment of the interference reconstruction module. Referring to FIGS. 2 and 3, the power distribution unit 110 can separate the second signal into at least two of the second set powers. The path signal, wherein the power of at least two sub-signals may be equal or unequal, and is not limited herein.
信号调整单元 111, 用于分别对子信号进行幅值调整和 /或时延调整, 并 将经过调整和 /或时延调整后的子信号输入至功率合成单元 112。  The signal adjusting unit 111 is configured to perform amplitude adjustment and/or delay adjustment on the sub-signals, respectively, and input the adjusted and/or time-delay adjusted sub-signals to the power synthesizing unit 112.
具体的, 参照图 3, 信号调整单元 111可以对每一路子信号分别进行幅值 调整和 /或时延调整, 经过幅值调整和 /或时延调整后的子信号可以消除信号 干扰处理装置的自干扰信号, 也可以消除第二天线接收到的第三信号中由于 环境反射造成的多径自干扰。 需要说明的是, 信号调整单元 111调整的幅值 以及时延的调整幅度可以是固定的,也可以是根据实际需求变化的。具体的, 幅值调整和 /或时延调整通过具体的算法进行控制, 本发明不予限定。 Specifically, referring to FIG. 3, the signal adjusting unit 111 may separately perform amplitude adjustment and/or delay adjustment on each of the sub-signals, and the sub-signals after amplitude adjustment and/or delay adjustment may eliminate the signal interference processing apparatus. The self-interference signal can also eliminate multipath self-interference caused by environmental reflection in the third signal received by the second antenna. It should be noted that the amplitude adjusted by the signal adjustment unit 111 And the adjustment range of the delay may be fixed or may vary according to actual needs. Specifically, the amplitude adjustment and/or the delay adjustment are controlled by a specific algorithm, which is not limited by the present invention.
功率合成单元 112,用于对经过幅值调整和 /或时延调整后的子信号进行 功率合成, 生成干扰抵消信号。 功率合成单元 112将生成的干扰抵消信号发 送给图 1中的功率合成模块 12。  The power combining unit 112 is configured to perform power combining on the amplitude adjustment and/or the delay adjusted sub-signals to generate an interference cancellation signal. The power combining unit 112 sends the generated interference cancellation signal to the power combining module 12 of Fig. 1.
可选的,在第一天线和第二天线设置在信号干扰处理装置上的实施场景 下, 信号干扰处理装置还可以进一歩包括: 至少一个接口单元。  Optionally, in the implementation scenario where the first antenna and the second antenna are disposed on the signal interference processing device, the signal interference processing device may further include: at least one interface unit.
接口单元, 用于输入第二天线接收的第三信号, 并将第三信号输出至功 率合成模块。 gp, 该接口单元作为信号干扰处理装置中第二天线和功率合成 模块之间的接口。  And an interface unit, configured to input a third signal received by the second antenna, and output the third signal to the power synthesis module. Gp, the interface unit acts as an interface between the second antenna and the power synthesis module in the signal interference processing device.
该接口单元, 还用于输入功率分配模块将第一信号中分离出第一设定功 率的第二信号后得到的第四信号, 并将第四信号输出至第一天线, 该第一天 线, 还用于发射第四信号。 gp, 该接口单元还可以作为信号干扰处理装置中 第一天线和功率分配模块之间的接口。  The interface unit is further configured to: input the fourth signal obtained by the power distribution module separating the second signal of the first set power from the first signal, and output the fourth signal to the first antenna, the first antenna, Also used to transmit a fourth signal. Gp, the interface unit can also serve as an interface between the first antenna and the power distribution module in the signal interference processing device.
具体的, 第一天线和第二天线可以共用一个接口单元, 也可以分别连接 一个接口单元, 图 4为本发明信号干扰处理装置实施例二的结构示意图, 如 图 4所示, 该实施例提供的信号干扰处理装置包括 2个接口单元, 第一天线 14 与第一接口单元 16连接, 第二天线 13与第二接口单元 15连接。 图 4所示的信 号干扰处理装置中, 带箭头黑色实线标示出一个信号的传输过程, 该信号可 以为上行信号或者下行信号, 但是对于本实施例提供的信号干扰处理装置 11, 可以同时接收上行信号和下行信号, 即第二天线 13接收下行信号的同时 也发送上行信号, 相应的第一天线 14在发送下行信号的同时也接收上行信 号。 当然, 第二天线 13也可以接收的是上行信号而发送的是下行信号, 则第 一天线 14进行相应调整。对于第一天线 14和第二天线 13具体发送的信号或者 接收的信号, 本实施例不予限定。 而为了能够保证上行信号与下行信号同时 传输, 本实施例引入接口单元, 其作用在于, 对上行信号和下行信号进行双 工传输。  Specifically, the first antenna and the second antenna may share one interface unit, or may be respectively connected to one interface unit. FIG. 4 is a schematic structural diagram of Embodiment 2 of the signal interference processing apparatus according to the present invention. As shown in FIG. 4, this embodiment provides The signal interference processing device includes two interface units, the first antenna 14 is connected to the first interface unit 16, and the second antenna 13 is connected to the second interface unit 15. In the signal interference processing device shown in FIG. 4, a black solid line with an arrow indicates a transmission process of a signal, and the signal may be an uplink signal or a downlink signal, but the signal interference processing device 11 provided in this embodiment may receive simultaneously. The uplink signal and the downlink signal, that is, the second antenna 13 receives the downlink signal and also transmits the uplink signal, and the corresponding first antenna 14 also receives the uplink signal while transmitting the downlink signal. Of course, the second antenna 13 can also receive the uplink signal and transmit the downlink signal, and the first antenna 14 adjusts accordingly. The signal or the received signal that is specifically transmitted by the first antenna 14 and the second antenna 13 is not limited in this embodiment. In order to ensure that the uplink signal and the downlink signal are simultaneously transmitted, the embodiment introduces an interface unit, and the function thereof is to perform duplex transmission on the uplink signal and the downlink signal.
可选的, 在信号干扰处理装置设置在一个作为中继设备的频分双工 ( Frequency Divi sion Duplexing , 简称 FDD ) 模式的基站上时, 该信号干 扰处理装置的接入数字处理单元可以与基站的数字处理单元通过网线连接, 该基站的数字处理单元主要用于对上行信号或者下行信号进行过滤处理, 该 信号干扰处理装置可以接收数字处理单元输入的经过过滤处理的上行信号 或者下行信号。 该接口单元可以包括: 滤波器, 用于对第一天线传输的上行 信号和下行信号进行频谱分离, 和 /或, 对第二天线传输的上行信号和下行 信号进行频谱分离。 Optionally, when the signal interference processing device is disposed on a base station of a Frequency Division Duplexing (FDD) mode as a relay device, the signal is dried. The access processing unit of the interference processing device can be connected to the digital processing unit of the base station through a network cable. The digital processing unit of the base station is mainly used for filtering the uplink signal or the downlink signal, and the signal interference processing device can receive the input of the digital processing unit. Filtered upstream or downstream signals. The interface unit may include: a filter for performing spectral separation on the uplink signal and the downlink signal transmitted by the first antenna, and/or performing spectral separation on the uplink signal and the downlink signal transmitted by the second antenna.
在信号干扰处理装置设置在一个作为中继设备的时分双工(Time Division Duplexing , 简称 TDD)模式的基站上时, 该信号干扰处理装置的接 入数字处理单元可以与基站的数字处理单元通过网线连接, 此时, 接口单元 还可以包括: 环形器。 环形器用于对第一天线传输的上行信号和下行信号进 行时间分离。 和 /或, 对第二天线传输的上行信号和下行信号进行时间分离。  When the signal interference processing device is disposed on a base station of a Time Division Duplexing (TDD) mode as a relay device, the access digital processing unit of the signal interference processing device can communicate with the digital processing unit of the base station through the network cable. Connection, at this time, the interface unit may further include: a circulator. The circulator is used for time separation of the uplink signal and the downlink signal transmitted by the first antenna. And/or, performing time separation on the uplink signal and the downlink signal transmitted by the second antenna.
可选的, 信号干扰处理装置还可以包括接入数字处理单元, 用于对已经 干扰抵消的第三信号进行接入处理, 将第三信号传输给基站的数字处理单 元。  Optionally, the signal interference processing device may further include an access digital processing unit, configured to perform access processing on the third signal that has been canceled by interference, and transmit the third signal to the digital processing unit of the base station.
具体的, 信号干扰处理装置中设置的接入数字处理单元, 可以通过网线 与作为中继设备的基站中的数字处理单元连接, 这样, 在作为中继设备的基 站上设置信号干扰处理装置过程中, 不需要再对基站内部的相关模块以及电 路进行修改升级, 简化了安装过程。 并且, 对于接入数字处理单元与作为中 继设备的现有基站一体化设置的情况, 由于现有基站集成了接入数字处理单 元的功能, 信号干扰处理装置可以不包括接入数字处理单元。  Specifically, the access digital processing unit provided in the signal interference processing device may be connected to the digital processing unit in the base station as the relay device through the network cable, so that the signal interference processing device is set on the base station as the relay device. It is no longer necessary to modify and upgrade related modules and circuits inside the base station, which simplifies the installation process. Moreover, in the case where the access digital processing unit is integrated with the existing base station as the relay device, since the existing base station integrates the function of accessing the digital processing unit, the signal interference processing device may not include the access digital processing unit.
本发明还提供了一种中继设备的实施例, 该种中继设备可以是 Relay、 NodeB, eNodeB等类型的设备, 其上设置有本发明实施例提供的信号干扰处 理装置。 本实施例以基站作为中继设备为例进行说明。 图 5为本发明设置信 号干扰处理装置的中继设备的工作原理示意图, 参照图 5, 该中继设备由现 有的基站和信号干扰处理装置组成,保证了远端基站连接的核心网与 UE的之 间的通信, 并且该信号干扰处理装置与现有基站的数字处理单元连接方便, 通过信号干扰处理装置可以根据其中一组天线的发射信号产生干扰抵消信 号, 同过将该干扰抵消信号与另一组天线的接收信号进行合并, 消除发射信 号对接收信号的干扰, 从而降低了第一天线发射信号对第二天线接收信号的 干扰, 提高频谱的使用效率。 The present invention further provides an embodiment of a relay device, which may be a device of the type of Relay, NodeB, eNodeB, etc., on which the signal interference processing device provided by the embodiment of the present invention is disposed. This embodiment uses a base station as a relay device as an example for description. FIG. 5 is a schematic diagram of the working principle of a relay device for setting a signal interference processing device according to the present invention. Referring to FIG. 5, the relay device is composed of an existing base station and a signal interference processing device, and ensures a core network and a UE connected by the remote base station. The communication between the signal interference processing device and the digital processing unit of the existing base station is convenient. The signal interference processing device can generate an interference cancellation signal according to the transmission signal of one of the antennas, and the interference cancellation signal is The received signals of the other set of antennas are combined to eliminate the interference of the transmitted signal on the received signal, thereby reducing the received signal of the first antenna and the received signal of the second antenna. Interference, improve the efficiency of spectrum use.
其中, 作为中继设备的基站中的数字处理单元, 用于接收干扰处理装置 传输的第三信号, 并对第三信号进行过滤处理。  The digital processing unit in the base station as the relay device is configured to receive the third signal transmitted by the interference processing device, and perform filtering processing on the third signal.
具体的, 第三信号可能还有残留的干扰信号, 此时通过作为中继设备的 基站中的数字处理单元将残留的干扰信号滤除。  Specifically, the third signal may also have a residual interference signal, and the residual interference signal is filtered out by the digital processing unit in the base station as the relay device.
本发明提供的中继设备在不同的实施场景中, 其内部结构略有不同, 以 下实施例对于不同的场景下的中继设备分别进行说明。  The relay device provided by the present invention has different internal structures in different implementation scenarios. The following embodiments respectively describe relay devices in different scenarios.
图 6为本发明中继设备实施例一的结构示意图, 需要说明的是, 如图 6所 示, 其中带箭头的黑色实线为上行信号, 带箭头的黑色虚线为下行信号, 并 且上行信号和下行信号在信号干扰处理装置中可以被分为多路上行信号和 多路下行信号, 图 6中各以上行信号和下行信号分别分为两路为例进行说明。 在该中继设备的信号干扰处理装置上设置了第一天线和第二天线, 第一天线 和第二天线分别可以包含一根或多根天线。本实施例中作为中继设备的基站 采用 FDD模式传输信号。 信号干扰处理装置的接入数字处理单元 18与基站的 数字处理单元 19通过网线连接。  6 is a schematic structural diagram of Embodiment 1 of a relay device according to the present invention. It should be noted that, as shown in FIG. 6, a solid black line with an arrow is an uplink signal, a black dotted line with an arrow is a downlink signal, and an uplink signal and The downlink signal can be divided into multiple uplink signals and multiple downlink signals in the signal interference processing device, and each of the above-mentioned row signals and downlink signals in FIG. 6 is divided into two paths as an example for description. A first antenna and a second antenna are disposed on the signal interference processing device of the relay device, and the first antenna and the second antenna may respectively include one or more antennas. The base station serving as the relay device in this embodiment transmits signals in the FDD mode. The access digital processing unit 18 of the signal interference processing device is connected to the digital processing unit 19 of the base station via a network cable.
由于信号干扰处理装置既可以接收远端基站发送给 UE的下行信号, 并将 该下行信号发送给 UE; 也可以接收 UE发送给远端基站的上行信号, 并将该上 行信号发送给远端基站, 所以, 图 6所示的第一天线既可以接收远端基站发 送的下行信号, 也可以向远端基站发送上行信号。 第二天线既可以接收 UE发 送的上行信号, 也可以向 UE发送下行信号。  The signal interference processing device can receive the downlink signal sent by the remote base station to the UE, and send the downlink signal to the UE. The uplink signal sent by the UE to the remote base station can also be received, and the uplink signal is sent to the remote base station. Therefore, the first antenna shown in FIG. 6 can receive the downlink signal sent by the remote base station or the uplink signal to the remote base station. The second antenna can receive the uplink signal sent by the UE or the downlink signal to the UE.
由于本实施例中该信号干扰处理装置与作为中继设备的 FDD模式传输的 现有基站连接, 为了对上行信号和下行信号进行双工传输, 接口单元可以包 括第一滤波器 16以及第二滤波器 15。  Since the signal interference processing device is connected to the existing base station transmitted in the FDD mode as the relay device in this embodiment, the interface unit may include the first filter 16 and the second filter for duplex transmission of the uplink signal and the downlink signal. Device 15.
第一滤波器 16,用于对第一天线接收到的上行信号以及待发送的下行信 号进行频分传输。  The first filter 16 is configured to perform frequency division transmission on the uplink signal received by the first antenna and the downlink signal to be transmitted.
第二滤波器 15,用于对第二天线接收到的下行信号以及待发送的上行信 号进行频分传输。  The second filter 15 is configured to perform frequency division transmission on the downlink signal received by the second antenna and the uplink signal to be transmitted.
在本实施例的信号干扰处理装置, 设置了两组射频单元, 由于信号干扰 处理装置可以同时处理上行信号与下行信号, 所以一组射频单元包括: 第一 发射信号处理模块 171和第一接收信号处理模块 172, 另一组射频单元包括: 第二发射信号处理模块 173和第二接收信号处理模块 174。 当然, 第一天线与 第二天线也可以共用一组射频单元。 In the signal interference processing apparatus of this embodiment, two sets of radio frequency units are provided. Since the signal interference processing apparatus can simultaneously process the uplink signal and the downlink signal, the group of radio frequency units includes: The transmit signal processing module 171 and the first receive signal processing module 172, and the other set of radio frequency units include: a second transmit signal processing module 173 and a second receive signal processing module 174. Of course, the first antenna and the second antenna can also share a group of radio frequency units.
以第一组射频单元为例, 其中第一发射信号处理模块 171, 用于将从现 有基站中的数字处理单元 19接收到的待发送的下行信号从数字信号转化为 模拟信号, 并将该模拟信号传输给第三功率分配模块 103和第四功率分配模 块 104。  Taking the first group of radio frequency units as an example, the first transmit signal processing module 171 is configured to convert the downlink signal to be sent received from the digital processing unit 19 in the existing base station from a digital signal to an analog signal, and The analog signal is transmitted to the third power distribution module 103 and the fourth power distribution module 104.
第一接收信号处理模块 172将第一天线接收到的上行信号从模拟信号转 化为数字信号, 并传输给数字处理单元 19进行接入处理。 具体的, 第一天线 接收到的上行信号经第一功率合成模块 121与第二功率合成模块 122将干扰 抵消信号合成后输入给第一接收信号处理模块 172。  The first received signal processing module 172 converts the uplink signal received by the first antenna from an analog signal to a digital signal, and transmits it to the digital processing unit 19 for access processing. Specifically, the uplink signal received by the first antenna is combined with the second power combining module 122 and the second power combining module 122 to input the interference cancellation signal to the first received signal processing module 172.
以第二组射频单元为例。 其中第二发射信号处理模块 173, 用于将从接 入数字处理单元 18接收到的待发送的上行信号从数字信号转化为模拟信号, 并将该模拟信号传输给第一功率分配模块 101和第二功率分配模块 102。  Take the second group of RF units as an example. The second transmit signal processing module 173 is configured to convert the uplink signal to be sent received from the access digital processing unit 18 from a digital signal to an analog signal, and transmit the analog signal to the first power distribution module 101 and the first Two power distribution modules 102.
第二接收信号处理模块 174将第二天线将第二天线接收到的下行信号从 模拟信号转化为数字信号, 并传输给接入数字处理单元 18进行接入处理。 具 体的, 第二天线接收到的下行信号经第三功率合成模块 123与第四功率合成 模块 124将干扰抵消信号合成后输入给第二接收信号处理模块 172。  The second received signal processing module 174 converts the downlink signal received by the second antenna from the analog signal into a digital signal, and transmits the signal to the access digital processing unit 18 for access processing. Specifically, the downlink signal received by the second antenna is combined with the fourth power combining module 123 and the fourth power combining module 124 to input the interference cancellation signal to the second received signal processing module 172.
下面参照图 6, 对本实施例提供的中继设备的工作原理进行说明。  The working principle of the relay device provided in this embodiment will be described below with reference to FIG.
首先, 以中继设备对下行信号进行处理为例进行说明。  First, the downlink device is processed by the relay device as an example for description.
第二天线接收到远端基站发送的下行信号(即第三信号) , 该信号为模 拟信号。 第二天线将该下行信号传输给第二滤波器 15, 由于第二天线同时还 进行上行信号的发送,所以第二滤波器 15将该下行信号与待发送的上行信号 进行分频传输处理, 并将该下行信号传输给第三功率合成模块 123和第四功 率合成模块 124。 该第三功率合成模块 123和第四功率合成模块 124分别与第 二天线接收到的一路下行信号对应。  The second antenna receives the downlink signal (ie, the third signal) sent by the remote base station, and the signal is an analog signal. The second antenna transmits the downlink signal to the second filter 15. Since the second antenna also performs the uplink signal transmission, the second filter 15 performs the frequency division transmission processing on the downlink signal and the uplink signal to be transmitted, and The downlink signal is transmitted to the third power combining module 123 and the fourth power combining module 124. The third power combining module 123 and the fourth power combining module 124 respectively correspond to one downlink signal received by the second antenna.
参照图 6, 第三功率分配模块 103和第四功率分配模块 104获取第一天线 待发送的下行信号(即第一信号) , 从该下行信号中分别分离出一路第一设 定功率的第二信号, 并将该第二信号发送给干扰重建模块 11, 干扰重建模块 11根据第二信号生成干扰抵消信号, 可选的, 干扰重建模块 11可以采用图 3 所示的技术方案获得干扰抵消信号。干扰重建模块 11分别将干扰抵消信号输 入到第三功率合成模块 123和第四功率合成模块 124, 与第二天线接收到远端 基站发送的下行信号进行功率合成, 从而抵消第一天线发射出的信号对第二 天线接收到的信号的干扰。 Referring to FIG. 6, the third power distribution module 103 and the fourth power distribution module 104 acquire a downlink signal (ie, a first signal) to be transmitted by the first antenna, and separate a second power of the first set power from the downlink signal. Signaling, and transmitting the second signal to the interference reconstruction module 11, the interference reconstruction module 11 generating an interference cancellation signal according to the second signal. Optionally, the interference reconstruction module 11 may obtain the interference cancellation signal by using the technical solution shown in FIG. 3. The interference reconstruction module 11 respectively inputs the interference cancellation signal to the third power synthesis module 123 and the fourth power synthesis module 124, and the second antenna receives the downlink signal sent by the remote base station for power synthesis, thereby canceling the first antenna. The interference of the signal to the signal received by the second antenna.
经过第三功率合成模块 123和第四功率合成模块 124将干扰抵消信号合 成处理后的下行信号经过第二接收信号处理模块 174-接入数字处理单元 18- 现有基站的数字处理单元 19-第一发射信号处理模块 171-功率分配模块 (即 第三功率分配模块 103和第四功率分配模块 104 ) -第一滤波器 16, 最终由第 一天线发送给 UE。  After the third power combining module 123 and the fourth power combining module 124, the downlink signal after the interference cancellation signal synthesis processing is passed through the second receiving signal processing module 174 - accessing the digital processing unit 18 - the digital processing unit 19 of the existing base station A transmit signal processing module 171 - a power distribution module (ie, a third power distribution module 103 and a fourth power distribution module 104) - a first filter 16, which is ultimately transmitted by the first antenna to the UE.
具体的, 下行信号经过第二接收信号处理模块 174时, 第二接收信号处 理模块 174将该下行信号从模拟信号转换为数字信号, 并输入给接入数字处 理单元 18, 接入数字处理单元 18对该下行信号进行接入处理。 接入数字处理 单元 18将完成接入处理的下行信号通过网线输入给基站的数字处理单元 19, 基站的数字处理单元 19对该下行信号进行相应的过滤处理。基站的数字处理 单元 19通过通用公共无线接口(The Common Pub l ic Radio Interface , 简 称 CRPI)将过滤处理过的下行信号传输给另一组射频单元中的发射信号 处理模块, 即图 6中的第一发射信号处理模块 171, 第一发射信号处理模 块 171将该下行信号从数字信号转换为模拟信号, 在该下行信号经第一发 射信号处理模块 171从数字信号转换为模拟信号传输给第三功率分配模块 103和第四功率分配模块 104时, 第三功率分配模块 103和第四功率分配模块 104将该下行信号再进行功率分配, 分离出第一设定功率的信号 (即第二信 号)并发送给干扰重建模块 11,以便产生干扰抵消信号发送给功率合成模块, 即图 6中第三功率合成模块 123和第四功率合成模块 124, 以使功率合成模块 将该干扰抵消信号与第二天线之后接收到的下行信号进行合成抵消信号干 扰。 同时, 将第三功率分配模块 103和第四功率分配模块 104分离出后得到的 下行信号 (即第四信号) 传输给第一滤波器 16, 通过第一天线发送给 UE。  Specifically, when the downlink signal passes through the second received signal processing module 174, the second received signal processing module 174 converts the downlink signal from the analog signal to a digital signal, and inputs the signal to the access digital processing unit 18 to access the digital processing unit 18. The downlink signal is subjected to access processing. The access digital processing unit 18 inputs the downlink signal for completing the access processing to the digital processing unit 19 of the base station through the network cable, and the digital processing unit 19 of the base station performs corresponding filtering processing on the downlink signal. The digital processing unit 19 of the base station transmits the filtered downlink signal to the transmit signal processing module in another set of radio frequency units through the Common Public Radio Interface (CRPI), that is, the first in FIG. a transmit signal processing module 171, the first transmit signal processing module 171 converts the downlink signal from a digital signal to an analog signal, and the downlink signal is converted from the digital signal to the analog signal by the first transmit signal processing module 171 to the third power. When the module 103 and the fourth power distribution module 104 are allocated, the third power distribution module 103 and the fourth power distribution module 104 further perform power allocation on the downlink signal, and separate the signal of the first set power (ie, the second signal). The interference reconstruction module 11 is sent to generate the interference cancellation signal to the power synthesis module, that is, the third power synthesis module 123 and the fourth power synthesis module 124 in FIG. 6 to enable the power synthesis module to use the interference cancellation signal and the second antenna. The received downlink signal is then combined to cancel the signal interference. At the same time, the downlink signal (ie, the fourth signal) obtained by separating the third power distribution module 103 and the fourth power distribution module 104 is transmitted to the first filter 16, and is transmitted to the UE through the first antenna.
需要说明的是, 在中继设备初始化阶段, 当第二天线设备接收到下行信 号时, 此时由于第一天线没有待发送的下行信号, 第三功率分配模块 103和 第四功率分配模块 104并没有获得待发送的下行信号, 所以功率合成模块 11 中没有产生干扰抵消信号, 下行信号经过第三功率合成模块 123和第四功率 合成模块 124时不做功率合成处理, 而需要等到该下行信号经过第三功率分 配模块 103和第四功率分配模块 104时, 分离出第一设定功率的信号(即第二 信号) 后, 功率合成模块 11才能根据该第二信号产生干扰抵消信号。 It should be noted that, in the initialization phase of the relay device, when the second antenna device receives the downlink signal, at this time, because the first antenna has no downlink signal to be transmitted, the third power distribution module 103 and The fourth power distribution module 104 does not obtain the downlink signal to be sent, so the interference cancellation signal is not generated in the power combining module 11, and the downlink signal does not perform power synthesis processing when passing through the third power combining module 123 and the fourth power combining module 124. When the downlink signal passes through the third power distribution module 103 and the fourth power distribution module 104, the signal of the first set power (ie, the second signal) is separated, and the power combining module 11 can generate the signal according to the second signal. Interference cancellation signal.
而本实施例处理黑色实线为上行信号的技术方案与本实施例处理上述 下行信号的技术方案类似, 不同点在于, UE向远端基站发送的上行信号由第 一天线接收, 最终由第二天线发送。 需要说明的是, 在本实施例中, 第一天 线用于接收上行信号以及发送下行信号,第二天线用于接收下行信号以及发 送上行信号。而将第一天线的功能与第二天线的功能相互替换并不对本发明 提供的技术方案造成影响, 所以不予限定。  The technical solution for processing the black solid line as the uplink signal in this embodiment is similar to the technical solution for processing the downlink signal in this embodiment. The difference is that the uplink signal sent by the UE to the remote base station is received by the first antenna, and finally by the second. Antenna transmission. It should be noted that, in this embodiment, the first antenna is used to receive the uplink signal and the downlink signal is sent, and the second antenna is used to receive the downlink signal and send the uplink signal. The mutual replacement of the function of the first antenna and the function of the second antenna does not affect the technical solution provided by the present invention, and thus is not limited.
图 7为本发明中继设备实施例二的结构示意图, 其技术方案与工作原理 与本发明中继设备实施例一类似, 此处不再赘述。 需要说明的是, 如图 7所 示, 本实施例中的干扰处理装置与作为中继设备的 TDD模式传输的基站的数 字处理模块连接时, 需要在图 6基础上添加两个环形器, 即第一环形器 20和 第二环形器 21。  FIG. 7 is a schematic structural diagram of a second embodiment of a relay device according to the present invention. The technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again. It should be noted that, as shown in FIG. 7, when the interference processing apparatus in this embodiment is connected to the digital processing module of the base station transmitted in the TDD mode as the relay device, two circulators need to be added on the basis of FIG. The first circulator 20 and the second circulator 21.
第一环形器 20和第二环形器 21用于对上行信号和下行信号进行时分传 输处理。  The first circulator 20 and the second circulator 21 are used for time-division transmission processing of the up signal and the down signal.
具体的,第一环形器 20和第二环形器 21用于对上行信号和下行信号进行 分离到不同的射频通道进行相应的处理。 参照图 7, 以第二环形器 21为例, 第二环形器 21分别将上行信号和下行信号分离到第二发射信号处理模块 173 和第二接收信号处理模块 174进行相应处理。  Specifically, the first circulator 20 and the second circulator 21 are configured to separate the uplink signal and the downlink signal into different RF channels for corresponding processing. Referring to Fig. 7, taking the second circulator 21 as an example, the second circulator 21 separates the uplink signal and the downlink signal to the second transmission signal processing module 173 and the second reception signal processing module 174, respectively, for corresponding processing.
图 8为本发明中继设备实施例三的结构示意图, 其技术方案与工作原理 与本发明中继设备实施例一类似, 此处不再赘述。 需要说明的是, 本实施例 中的干扰处理装置与作为中继设备的 FDD模式传输的基站的数字处理模块 19 连接时, 基站上的数字处理单元 19与一组射频单元集成在一起, 该数字处理 单元 19具有了对信号进行模拟信号与数字信号相互转换的功能。此时需要在 图 6基础上将一组射频单元替换为第三滤波器 22与基站的数字处理单元 19连 接。 第三滤波器 22与数据处理单元 19通过网线连接,第三滤波器 22将发送给 数据处理单元的上行信号, 即图 8中带箭头黑线所示, 传输给数字处理单元 19,将数字处理单元 19传输给第三滤波器 22的下行信号传输给第三功率分配 模块 103和第四功率分配模块 104。 FIG. 8 is a schematic structural diagram of a third embodiment of a relay device according to the present invention. The technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again. It should be noted that, when the interference processing apparatus in this embodiment is connected to the digital processing module 19 of the base station that is the FDD mode transmission of the relay device, the digital processing unit 19 on the base station is integrated with a group of radio frequency units, the number The processing unit 19 has a function of converting the analog signal and the digital signal to each other. At this time, it is necessary to replace a group of radio frequency units with the third filter 22 on the basis of FIG. 6 and connect to the digital processing unit 19 of the base station. The third filter 22 is connected to the data processing unit 19 via a network cable, and the third filter 22 transmits the uplink signal sent to the data processing unit, as indicated by the black line with an arrow in FIG. 8, to the digital processing unit 19 for digital processing. The downlink signal transmitted by the unit 19 to the third filter 22 is transmitted to the third power distribution module 103 and the fourth power distribution module 104.
图 9为本发明中继设备实施例四的结构示意图, 其技术方案与工作原理 与本发明中继设备实施例一类似, 此处不再赘述。 需要说明的是, 本实施例 中的干扰处理装置与作为中继设备的 FDD模式传输的现有基站的数字处理模 块 19连接时, 基站上的数字处理单元 19与射频单元集成在一起, 并且, 接入 数字处理单元 18与射频单元集成在一起。该接入数字处理单元 18具有了对信 号进行模拟信号与数字信号相互转换的功能。 此时需要在图 8基础上将与接 入数字处理单元 18连接的一组射频单元替换第四滤波器 23。  FIG. 9 is a schematic structural diagram of Embodiment 4 of a relay device according to the present invention. The technical solution and working principle are similar to the first embodiment of the relay device of the present invention, and details are not described herein again. It should be noted that, when the interference processing apparatus in this embodiment is connected to the digital processing module 19 of the existing base station that transmits the FDD mode as the relay device, the digital processing unit 19 on the base station is integrated with the radio frequency unit, and The access digital processing unit 18 is integrated with the radio unit. The access digital processing unit 18 has a function of converting an analog signal and a digital signal to each other. At this time, it is necessary to replace the fourth filter 23 with a group of radio frequency units connected to the access digital processing unit 18 on the basis of FIG.
因为在接入数据处理单元 18与射频单元, 具体为第二发射信号处理模块 173和第二接收信号处理模块 174集成在一起的情况下,在将信号干扰处理装 置安装到现有基站上时, 不能对射频单元的电路进行修改, 所以设置一个第 四滤波器 23与接入数据处理单元 18通过网线连接,用于接收接入数字处理单 元 18发送的上行信号, 并将该上行信号传输给第一功率分配模块 101和第二 功率分配模块 102。或者用于接收第三功率合成模块 123和第四功率合成模块 124传输的下行信号, 并将该下行信号传输给接入数字处理单元 18。  Because when the access data processing unit 18 and the radio frequency unit, specifically the second transmit signal processing module 173 and the second receive signal processing module 174 are integrated, when the signal interference processing device is installed on the existing base station, The circuit of the radio unit cannot be modified, so a fourth filter 23 is connected to the access data processing unit 18 through the network cable for receiving the uplink signal sent by the digital processing unit 18, and transmitting the uplink signal to the A power distribution module 101 and a second power distribution module 102. Or receiving the downlink signal transmitted by the third power synthesizing module 123 and the fourth power synthesizing module 124, and transmitting the downlink signal to the access digital processing unit 18.
图 10为本发明信号干扰处理方法实施例一的流程图, 如图 10所示, 包括 如下歩骤:  FIG. 10 is a flowchart of Embodiment 1 of a method for processing signal interference according to the present invention. As shown in FIG. 10, the method includes the following steps:
歩骤 100、 获取第一天线待发送的第一信号。  Step 100: Acquire a first signal to be sent by the first antenna.
具体的,信号干扰处理装置中的功率分配模块获取第一天线待发送的第 一信号。 该第一信号可以为上行信号, 也可以为下行信号。  Specifically, the power distribution module in the signal interference processing device acquires the first signal to be transmitted by the first antenna. The first signal may be an uplink signal or a downlink signal.
歩骤 101、 从第一信号中分离出第一设定功率的第二信号。  Step 101: Separate a second signal of the first set power from the first signal.
具体的,信号干扰处理装置中的功率分配模块从第一信号中分离出第一 设定功率的第二信号。第一设定功率的具体功率值可以根据实际需求或者经 验值来设置, 此处不做限定, 可以理解的是, 第一信号分离出第二信号后得 到的信号需要保证满足通信的正常需求即可。  Specifically, the power distribution module in the signal interference processing device separates the second signal of the first set power from the first signal. The specific power value of the first set power may be set according to the actual demand or the experience value, which is not limited herein. It can be understood that the signal obtained after the first signal is separated from the second signal needs to ensure that the normal communication requirement is met. can.
歩骤 102、 根据第二信号生成干扰抵消信号。 具体的,信号干扰处理装置中的干扰重建模块根据第二信号生成干扰抵 消信号。 Step 102: Generate an interference cancellation signal according to the second signal. Specifically, the interference reconstruction module in the signal interference processing device generates an interference cancellation signal according to the second signal.
歩骤 103、采用干扰抵消信号对第二天线接收的第三信号进行干扰抵消。 具体的,信号干扰处理装置中的功率合成模块将干扰抵消信号与第二天 线接收的第三信号进行功率合并, 从而抵消了第一天线待发送的第一信号对 第二天线接收的第三信号的干扰。并且第三信号也可以为上行信号或下行信 号。  Step 103: Perform interference cancellation on the third signal received by the second antenna by using the interference cancellation signal. Specifically, the power combining module in the signal interference processing device performs power combining the interference cancellation signal with the third signal received by the second antenna, thereby canceling the third signal received by the first antenna to be transmitted by the first antenna and the second antenna. Interference. And the third signal can also be an uplink signal or a downlink signal.
需要说明的是,第一天线待发送的第一信号可以是上行信号也可以是下 行信号, 即第一天线可以为远端基站对应接口天线, 也可以是 UE对应接口天 线, 同理, 对应的第二天线可以为 UE对应接口天线, 也可以为远端基站对应 接口天线。 并且, 对于本发明提供的方法, 可以同时处理上行信号和下行信 号。 以第一天线为远端基站对应接口天线时为例, 第一天线可以接收远端基 站发送的下行信号, 同时向远端基站发送上行信号。 对应的, 第二天线可以 接收 UE发送的上行信号, 同时向 UE发送下行信号。  It should be noted that the first signal to be sent by the first antenna may be an uplink signal or a downlink signal, that is, the first antenna may be an interface antenna corresponding to the remote base station, or may be an interface antenna corresponding to the UE. Similarly, corresponding The second antenna may be an interface antenna corresponding to the UE, or may be an interface antenna corresponding to the remote base station. Moreover, for the method provided by the present invention, the uplink signal and the downlink signal can be processed simultaneously. For example, when the first antenna is the corresponding antenna of the remote base station, the first antenna can receive the downlink signal sent by the remote base station and send the uplink signal to the remote base station. Correspondingly, the second antenna can receive the uplink signal sent by the UE, and simultaneously send the downlink signal to the UE.
本实施例提供的方法, 采用图 1提供的技术方案, 实现了类似的技术效 果, 此处不再赘述。  The method provided in this embodiment uses the technical solution provided in FIG. 1 to implement similar technical effects, and details are not described herein again.
进一歩的, 图 11为本发明生成干扰抵消信号方法实施例一的流程图, 如 图 11所示, 对于歩骤 102, 可以通过如下歩骤生成干扰抵消信号:  Further, FIG. 11 is a flowchart of Embodiment 1 of a method for generating an interference cancellation signal according to the present invention. As shown in FIG. 11, for step 102, an interference cancellation signal may be generated by the following steps:
歩骤 102a、 将第二信号分离成第二设定功率的至少两路子信号。  Step 102a: Separating the second signal into at least two sub-signals of the second set power.
具体的, 干扰重建模块中的功率分配单元将第二信号分离成第二设定功 率的至少两路子信号。 其中, 至少两路子信号的第二设定功率相同或不同, 此处不予限定。  Specifically, the power distribution unit in the interference reconstruction module separates the second signal into at least two sub-signals of the second set power. The second set power of the at least two sub-signals is the same or different, and is not limited herein.
歩骤 102b、 分别对子信号进行幅值调整和 /或时延调整。  Step 102b: performing amplitude adjustment and/or delay adjustment on the sub-signals respectively.
干扰重建模块中的信号调整单元分别对子信号进行幅值调整和 /或时延 调整。信号调整单元可以对每一路子信号分别进行幅值调整和 /或时延调整, 经过幅值调整和 /或时延调整后的子信号可以消除信号干扰处理装置的自干 扰信号, 也可以消除第二天线接收到的第三信号中由于环境反射造成的多径 自干扰。 需要说明的是, 信号调整单元调整的幅值以及时延的调整幅度可以 是固定的, 也可以是根据实际需求变化的。 歩骤 102c、 对经过幅值调整和 /或时延调整后的子信号进行功率合成, 生成干扰抵消信号。 The signal adjustment unit in the interference reconstruction module performs amplitude adjustment and/or delay adjustment on the sub-signals, respectively. The signal adjusting unit may separately perform amplitude adjustment and/or delay adjustment on each sub-signal, and the sub-signal after amplitude adjustment and/or delay adjustment may cancel the self-interference signal of the signal interference processing device, and may also eliminate the Multipath self-interference caused by environmental reflection in the third signal received by the two antennas. It should be noted that the amplitude adjusted by the signal adjustment unit and the adjustment range of the delay may be fixed or may be changed according to actual needs. Step 102c: Perform power synthesis on the amplitude-adjusted and/or delay-adjusted sub-signals to generate an interference cancellation signal.
具体的, 干扰重建模块中的功率合成单元对经过幅值调整和 /或时延调 整后的子信号进行功率合成, 生成干扰抵消信号。 可选的, 参照图 3所示的 技术方案, 生成干扰抵消信号。  Specifically, the power combining unit in the interference reconstruction module performs power synthesis on the amplitude-adjusted and/or time-delay-adjusted sub-signals to generate an interference cancellation signal. Optionally, the interference cancellation signal is generated by referring to the technical solution shown in FIG. 3.
本实施例提供的生成干扰抵消信号方法, 采用图 3提供的技术方案, 实 现了类似的技术效果, 此处不再赘述。  The method for generating an interference cancellation signal provided in this embodiment uses the technical solution provided in FIG. 3 to implement similar technical effects, and details are not described herein again.
本领域普通技术人员可以理解: 实现上述各方法实施例的全部或部分歩 骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可 读取存储介质中。 该程序在执行时, 执行包括上述各方法实施例的歩骤; 而 前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码的 介质。  One of ordinary skill in the art will appreciate that all or a portion of the steps of implementing the various method embodiments described above can be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as ROM, RAM, disk or optical disk.
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。  It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

权 利 要 求 Rights request
1、 一种信号干扰处理装置, 包括: 功率分配模块、 干扰重建模块和功 率合成模块; 1. A signal interference processing device, including: a power distribution module, an interference reconstruction module and a power synthesis module;
所述功率分配模块, 用于获取第一天线待发送的第一信号, 从所述第一 信号中分离出第一设定功率的第二信号, 并将所述第二信号输入至所述干扰 重建模块; The power distribution module is used to obtain the first signal to be sent by the first antenna, separate the second signal with the first set power from the first signal, and input the second signal to the interference rebuild module;
所述干扰重建模块, 用于根据所述第二信号生成干扰抵消信号, 并将所 述干扰抵消信号输入至所述功率合成模块; The interference reconstruction module is configured to generate an interference cancellation signal according to the second signal, and input the interference cancellation signal to the power synthesis module;
所述功率合成模块, 用于采用所述干扰抵消信号对第二天线接收的第三 信号进行干扰抵消。 The power synthesis module is configured to use the interference cancellation signal to perform interference cancellation on the third signal received by the second antenna.
2、根据权利要求 1所述的装置,所述干扰重建模块包括:功率分配单元、 信号调整单元和功率合成单元; 2. The device according to claim 1, the interference reconstruction module includes: a power distribution unit, a signal adjustment unit and a power synthesis unit;
所述功率分配单元, 用于将所述第二信号分离成第二设定功率的至少两 路子信号, 并将所述至少两路子信号输入至所述信号调整单元; The power distribution unit is used to separate the second signal into at least two sub-signals of the second set power, and input the at least two sub-signals to the signal adjustment unit;
所述信号调整单元, 用于分别对所述子信号进行幅值调整和 /或时延调 整, 并将经过调整和 /或时延调整后的子信号输入至所述功率合成单元; 所述功率合成单元, 用于对经过幅值调整和 /或时延调整后的子信号进 行功率合成, 生成所述干扰抵消信号。 The signal adjustment unit is configured to perform amplitude adjustment and/or delay adjustment on the sub-signals respectively, and input the adjusted and/or delay-adjusted sub-signals to the power synthesis unit; the power A synthesis unit, configured to perform power synthesis on the amplitude-adjusted and/or delay-adjusted sub-signals to generate the interference cancellation signal.
3、 根据权利要求 2所述的装置, 所述至少两路子信号的第二设定功率相 同或不同。 3. The device according to claim 2, the second set powers of the at least two sub-signals are the same or different.
4、 根据权利要求 1-3任一项所述的装置, 所述第一天线和第二天线设置 在所述信号干扰处理装置上; 或者, 所述第一天线和第二天线为基站天线。 4. The device according to any one of claims 1 to 3, the first antenna and the second antenna are provided on the signal interference processing device; or, the first antenna and the second antenna are base station antennas.
5、 根据权利要求 4所述的装置, 若所述第一天线和第二天线设置在所述 信号干扰处理装置上, 则所述装置还包括: 至少一个接口单元; 5. The device according to claim 4, if the first antenna and the second antenna are provided on the signal interference processing device, then the device further includes: at least one interface unit;
所述接口单元, 用于输入所述第二天线接收的第三信号, 并将所述第三 信号输出至所述功率合成模块。 The interface unit is used to input the third signal received by the second antenna, and output the third signal to the power synthesis module.
6、 根据权利要求 5所述的装置, 所述接口单元, 还用于输入所述功率分 配模块将所述第一信号中分离出第一设定功率的第二信号后得到的第四信 号, 并将所述第四信号输出至所述第一天线; 所述第一天线, 还用于发射所述第四信号。 6. The device according to claim 5, the interface unit is further configured to input a fourth signal obtained by separating the second signal of the first set power from the first signal by the power distribution module, and output the fourth signal to the first antenna; The first antenna is also used to transmit the fourth signal.
7、 根据权利要求 5或 6所述的装置, 所述接口单元包括: 滤波器, 用于 对所述第一天线传输的上行信号和下行信号进行频谱分离; 和 /或, 对所述 第二天线传输的上行信号和下行信号进行频谱分离。 7. The device according to claim 5 or 6, the interface unit comprising: a filter, used to perform spectrum separation on the uplink signal and the downlink signal transmitted by the first antenna; and/or, on the second The uplink signal and downlink signal transmitted by the antenna are spectrum separated.
8、 根据权利要求 7所述的装置, 所述接口单元还包括: 环形器; 所述环 形器, 用于对所述第一天线传输的上行信号和下行信号进行时间分离; 和 / 或, 对所述第二天线传输的上行信号和下行信号进行时间分离。 8. The device according to claim 7, the interface unit further includes: a circulator; the circulator, used to time separate the uplink signal and the downlink signal transmitted by the first antenna; and/or, The uplink signal and the downlink signal transmitted by the second antenna are time separated.
9、 根据权利要求 1-8任一项所述的装置, 还包括: 射频单元, 用于对所 述第一信号进行模数转换, 将转化为模拟信号的第一信号输入给所述功率分 配模块; 或者, 9. The device according to any one of claims 1 to 8, further comprising: a radio frequency unit, configured to perform analog-to-digital conversion on the first signal, and input the first signal converted into an analog signal to the power distribution module; or,
用于对所述第三信号进行模数转换,将转化为数字信号的第三信号输入 给所述功率合成模块。 Used to perform analog-to-digital conversion on the third signal, and input the third signal converted into a digital signal to the power synthesis module.
10、 根据权利要求 1-9任一项所述的装置, 还包括: 接入数字处理单元, 用于对已经干扰抵消的第三信号进行接入处理,将第三信号传输给基站的数 字处理单元。 10. The device according to any one of claims 1 to 9, further comprising: an access digital processing unit, configured to perform access processing on the third signal that has been interfered with, and transmit the third signal to the base station for digital processing. unit.
11、 一种中继设备, 包括如权利要求 1-10任一项所述的信号干扰处理装 置和数字处理单元; 11. A relay device, including the signal interference processing device and digital processing unit according to any one of claims 1-10;
所述数字处理单元, 用于接收干扰处理装置传输的第三信号, 并对所述 第三信号进行过滤处理。 The digital processing unit is configured to receive the third signal transmitted by the interference processing device, and perform filtering processing on the third signal.
12、 一种信号干扰处理方法, 包括: 12. A signal interference processing method, including:
获取第一天线待发送的第一信号; Obtain the first signal to be sent by the first antenna;
从所述第一信号中分离出第一设定功率的第二信号; Separate a second signal of a first set power from the first signal;
根据所述第二信号生成干扰抵消信号; Generate an interference cancellation signal based on the second signal;
采用所述干扰抵消信号对第二天线接收的第三信号进行干扰抵消。 The interference cancellation signal is used to perform interference cancellation on the third signal received by the second antenna.
13、 根据权利要求 12所述的方法, 所述根据所述第二信号生成干扰抵消 信号, 包括: 13. The method according to claim 12, said generating an interference cancellation signal according to the second signal, comprising:
将所述第二信号分离成第二设定功率的至少两路子信号; Separate the second signal into at least two sub-signals of a second set power;
分别对所述子信号进行幅值调整和 /或时延调整; Perform amplitude adjustment and/or delay adjustment on the sub-signals respectively;
对经过调整和 /或时延调整后的子信号进行功率合成, 生成所述干扰抵 消信号。 Power synthesis is performed on the adjusted and/or delay-adjusted sub-signals to generate the interference cancellation signal.
14、 根据权利要求 13所述的方法, 所述至少两路子信号的第二设定功 率相同或不同。 14. The method according to claim 13, wherein the second set powers of the at least two sub-signals are the same or different.
PCT/CN2013/085197 2012-12-11 2013-10-14 Signal interference processing method and apparatus, and relay device WO2014090038A1 (en)

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