WO2015192373A1 - 信号处理通信系统、信号处理通信装置和基站 - Google Patents
信号处理通信系统、信号处理通信装置和基站 Download PDFInfo
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- WO2015192373A1 WO2015192373A1 PCT/CN2014/080408 CN2014080408W WO2015192373A1 WO 2015192373 A1 WO2015192373 A1 WO 2015192373A1 CN 2014080408 W CN2014080408 W CN 2014080408W WO 2015192373 A1 WO2015192373 A1 WO 2015192373A1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/12—Frequency diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
Definitions
- Signal processing communication system Signal processing communication device and base station
- the present invention relates to wireless communication technologies, and more particularly to a signal processing communication system, a signal processing communication device, and a base station. Background technique
- the E-Band in the millimeter wave has a bandwidth of 10 GHz (71-76, 81-86 GHz) and is at a low atmospheric fading, so it is favored by long-distance high-speed wireless point-to-point systems in Gigabit wireless systems.
- the entire E-band supports transmission rates up to hundreds of Gbps. In practical base station applications, the rate that can be handled by the entire high frequency band needs to be allocated to multiple different sectors (directions) of the antenna as needed.
- the field-programmable gate array (FPGA) device and the radio frequency device are used to control bandwidth allocation and rate allocation, and the number of FPGAs and radio frequency devices required by the antenna is allocated.
- FPGA field-programmable gate array
- the number of FPGAs and radio frequency devices required by the antenna is allocated.
- an antenna corresponding to the bandwidth of 10 GHz E-BAND if 10 GHz is divided into 10 sub-bandwidth, and each sub-bandwidth requires an FPGA and a radio device for processing, therefore, an antenna Corresponding to 10 FPGAs and 10 RF devices, and in practical applications, if there are two antennas, 20 FPGAs and 20 RF devices are needed.
- Embodiments of the present invention provide a signal processing communication system, a signal processing communication device, and a base station to overcome the problems of high cost and complexity of a base station in the prior art.
- a first aspect of the present invention provides a signal processing communication device, including: a radio frequency switch and a power combination Generator
- the RF switch is configured to be closed under the control of a control signal sent by the digital interface, so that the digital processing unit is connected to the power combiner, and the modulated signal corresponding to the one or more sub-bands obtained by the digital processing unit Input to the power combiner;
- the power synthesizer is configured to superimpose a modulation signal corresponding to one or more sub-bands output by the radio frequency switch, and input the signal to a corresponding antenna.
- the number of the antennas is one, and the number of the power synthesizers is one;
- the radio frequency switch comprises: a plurality of single-pole single-throw switching devices, an input end of each of the single-pole single-throw switching devices is connected to the digital processing unit, and an output end is connected to the power combiner.
- the number of the antennas is one, and the number of the power synthesizers is multiple;
- the RF switch includes: a plurality of single-pole multi-throw switching devices, an input of each of the single-pole multi-throw switching devices being coupled to the digital processing unit, each output being coupled to a plurality of the power combiners.
- the number of the antennas is at least two, and each of the antennas corresponds to one of the power synthesizers;
- the RF switch includes: a plurality of single-pole single-throw switching devices, wherein an input end of each of the single-pole single-throw switching devices is connected to the digital processing unit, and an output end is connected to the power synthesizer corresponding to the signal modulation unit .
- the number of the antennas is at least two, and each of the antennas corresponds to multiple power synthesizers;
- the radio frequency switch includes: a plurality of single-pole multi-throw switching devices, wherein an input end of each of the single-pole multi-throw switching devices is connected to the digital processing unit, and a plurality of the power synthesis corresponding to the signal modulation unit at an output end Connected.
- a second aspect of the present invention provides a signal processing communication system, the system bandwidth comprising a plurality of sub-bands, the system comprising: a digital interface, at least one digital processing unit, a combining unit and at least one antenna;
- the digital interface is configured to generate a plurality of baseband signals, each of the baseband signals corresponding to one of the subbands; and further configured to determine a subband corresponding to each of the antennas, and output control to the combining unit Signal
- the digital processing unit is configured to separately modulate the plurality of baseband signals generated by the digital interface, and each of the baseband signals is modulated to obtain a modulated signal;
- the combining unit is configured to superimpose the modulation signals corresponding to the one or more sub-bands obtained by the digital processing unit according to the control signal sent by the digital interface, and input the modulated signals to the corresponding antennas;
- the antenna is configured to transmit a modulated signal output by the combining unit.
- the combining unit includes:
- a radio frequency switch configured to be closed under control of the control signal sent by the digital interface, to connect the digital processing unit to the power combiner, and the one or more sub-bands obtained by the digital processing unit Corresponding modulation signal is input to the power combiner;
- a power synthesizer configured to superimpose the modulation signals corresponding to the one or more sub-bands output by the radio frequency switch, and input the signals to the corresponding antennas.
- the system includes one of the antennas, and the number of the power synthesizers is one;
- the RF switch comprises: a plurality of single-pole single-throw switching devices, an input of each of the single-pole single-throw switching devices is connected to the digital processing unit, and an output is connected to the power combiner.
- the system includes one of the antennas, and the number of the power synthesizers is multiple;
- the radio frequency switch comprises: a plurality of single-pole multi-throw switching devices, wherein the input end of each of the single-pole multi-throw switching devices is connected to the digital processing unit, and each output terminal is connected to a plurality of the power combiners.
- the system includes at least two antennas, and each of the antennas corresponds to one of the power synthesizers ;
- the RF switch includes: a plurality of single-pole single-throw switching devices, wherein an input end of each of the single-pole single-throw switching devices is connected to the digital processing unit, and an output end is connected to the power synthesizer corresponding to the signal modulation unit .
- the system includes at least two antennas, and each of the antennas corresponds to multiple Rate synthesizer
- the radio frequency switch includes: a plurality of single-pole multi-throw switching devices, wherein an input end of each of the single-pole multi-throw switching devices is connected to the digital processing unit, and a plurality of the power synthesis corresponding to the signal modulation unit at an output end Connected.
- the digital processing unit includes:
- a field programmable gate array FPGA device configured to respectively modulate a plurality of baseband signals generated by the digital interface, and each of the baseband signals is modulated to obtain a modulated signal;
- a digital-to-analog conversion device is configured to perform digital-to-analog conversion on the modulated signal to obtain an analog signal.
- the method further includes:
- a first band pass filter BPF device configured to filter the analog signal obtained by the analog to digital conversion device to obtain a first filtered signal
- a signal amplifier configured to amplify the first filtered signal obtained by the first BPF device.
- the first to seventh possible implementation manners of the second aspect, the eighth possible implementation manner of the second aspect further includes: a second BPF device;
- the second BPF device is configured to filter a signal superposed by a modulation signal corresponding to one or more sub-bands output by the combining unit, and input the filtered signal to a corresponding antenna.
- a third aspect of the present invention provides a base station, comprising the system of any of the first to eighth possible implementations of the second aspect, the second aspect.
- a fourth aspect of the present invention provides a signal processing communication system, the system bandwidth includes a plurality of sub-bands, and the system includes: a generating module, a modulation module, a processing module, and at least one antenna;
- the generating module is configured to generate a plurality of baseband signals, each of the baseband signals corresponding to one of the subbands, and further configured to determine a subband corresponding to each of the antennas, and output a control signal to the processing module;
- the modulating module is configured to respectively modulate the plurality of baseband signals generated by the generating module, and each of the baseband signals is modulated to obtain a modulated signal;
- the processing module is configured to superimpose a modulation signal corresponding to one or more sub-bands obtained by the modulation module according to the control signal sent by the generating module, and then input the modulated signal to a corresponding antenna;
- the antenna is configured to transmit a modulation signal output by the processing module.
- the modulating module includes:
- a modulating unit configured to separately modulate a plurality of baseband signals generated by the generating module, and each of the baseband signals is modulated to obtain a modulated signal
- the method further includes:
- a first filtering unit configured to filter the analog signal obtained by the digital-to-analog conversion device to obtain a first filtered signal
- a signal amplifying unit configured to amplify the first filtered signal obtained by the filtering unit.
- the second filtering unit is configured to filter a signal superposed by a modulation signal corresponding to one or more sub-bands output by the processing module, and input the filtered signal to a corresponding antenna.
- a fifth aspect of the present invention provides a base station, comprising the system of any of the first to third possible implementations of the fourth aspect, the fourth aspect.
- the invention provides a signal processing communication system, a signal processing communication device and a base station, comprising: a radio frequency switch and a power synthesizer, wherein the radio frequency switch is closed under the control of a control signal sent by the digital interface, and the digital processing unit and the power synthesizer are Connected, the modulated signal corresponding to one or more sub-bands obtained by the digital processing unit is input to the power combiner, and finally the power combiner superimposes the modulated signals corresponding to one or more sub-bands output by the RF switch and inputs the corresponding signals to the corresponding Antenna.
- FIG. 1 is a schematic structural diagram of a signal processing communication apparatus according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a signal processing communication system according to an embodiment of the present invention
- FIG. 3 is a schematic structural diagram of a single-pole single-throw switch in a combination unit according to an embodiment of the present invention
- FIG. 4 is a schematic structural view of a single-pole multi-throw switch in a combination unit according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a signal processing communication system according to another embodiment of the present invention
- FIG. 6 is a schematic structural diagram of a signal processing communication system according to another embodiment of the present invention
- FIG. 7 is a single-tool single according to an embodiment of the present invention. Schematic diagram of throwing switch structure
- FIG. 8 is a schematic structural diagram of a single-pole multi-throw switch according to an embodiment of the present invention.
- FIG. 9 is a schematic structural diagram of a single-pole single-throw switch according to another embodiment of the present invention.
- FIG. 10 is a schematic structural diagram of a single-pole multi-throw switch according to another embodiment of the present invention;
- FIG. 11 is a signal processing communication according to another embodiment of the present invention.
- FIG. 12 is a schematic structural diagram of a signal processing communication system according to still another embodiment of the present invention.
- the signal processing apparatus 100 includes: a radio frequency switch 101 and a power synthesizer 102, wherein the radio frequency switch 101 is used in a digital interface.
- the control signal is sent under control to be closed, so that the digital processing unit is connected to the power combiner 102, and the modulated signal corresponding to the one or more sub-bands obtained by the digital processing unit is input to the power combiner 102; the power combiner 102,
- the modulated signals corresponding to one or more sub-bands outputted by the RF switch 101 are superimposed and input to the corresponding antennas.
- the RF switch 101 when the number of the antennas is one, the number of the power combiners is one, and the RF switch 101 includes: a plurality of single-pole single-throw switching devices, each single-pole The input of the single throw switching device is connected to the digital processing unit, and the output is connected to the power combiner 102 Pick up.
- the RF switch 101 when the number of the antennas is one, and the number of the power combiners is multiple, the RF switch 101 includes: a plurality of single-pole multi-throw switching devices, each single-pole The inputs of the multi-throw switching device are coupled to a digital processing unit, each output being coupled to a plurality of power combiners 102.
- the number of antennas is at least two, and each antenna corresponds to one power combiner 102.
- the RF switch 101 includes: a plurality of single-pole single-throw switch devices, each single-pole The input of the single throw switching device is connected to the digital processing unit, and the output is connected to the power combiner 102 corresponding to the signal modulation unit.
- the number of antennas is at least two, and each antenna corresponds to multiple power combiners 102
- the radio frequency switch 101 includes: a plurality of single-pole multi-throw switching devices, each The input end of the single-pole multi-throw switch device is connected to the digital processing unit, and the output end is connected to a plurality of power combiners 102 corresponding to the signal modulation unit.
- the digital interface unit when the digital interface unit generates a plurality of baseband signals, and according to the method of minimizing the system outage probability, or according to the method of minimizing the total power in the system, etc., determining which subband of the antenna the baseband signal can be transmitted, the digital interface Inputting the generated plurality of baseband signals to the digital processing unit, so that the digital processing unit modulates the baseband signal, and then the RF switch 101 is closed under the control of the control signal sent by the digital interface, and the signal modulated by the digital processing unit Switching to the power combiner 102 corresponding to the antenna sub-band, the power combiner 102 superimposes the signals modulated by the multi-channel digital processing unit in the same antenna direction, and inputs the superimposed modulated signals to the corresponding antenna direction, and transmits through the antenna.
- the number of antennas is one and three sub-bands in different directions can be used for signal transmission
- three digital processing units are required to modulate the baseband signal generated by the digital interface, because each digital processing unit modulates After the signal can only choose one of the antennas Directional transmission, but multiple antennas can be selected to transmit in the same direction.
- the number of antennas is two, there are also three sub-bands in different directions that can be used for signal transmission, because the signal modulated by the digital processing unit can only Select one antenna to transmit in one direction, because there are three directions, so at this time, only three digital processing units are required to modulate the baseband signal generated by the digital interface, and the number of subbands used for transmitting the signal is constant. Under the premise, the number of digital processing units does not increase as the number of antennas increases, thereby reducing the cost.
- a signal processing apparatus includes: an RF switch and a power combiner, The RF switch is closed under the control of the control signal sent by the digital interface, and the digital processing unit is connected to the power combiner, and the modulated signal corresponding to one or more sub-bands obtained by the digital processing unit is input to the power combiner, and finally the power
- the synthesizer superimposes the modulated signals corresponding to one or more sub-bands output by the RF switch and inputs them to the corresponding antenna.
- the signal processing communication system 200 includes: a digital interface 201, at least one digital processing unit. 202, a combining unit 203 and at least one antenna 204; wherein
- the digital interface 201 is configured to generate a plurality of baseband signals, each of the baseband signals corresponding to one subband, and further configured to determine a subband corresponding to each antenna 204, and output a control signal to the combining unit 203;
- the digital processing unit 202 is configured to separately modulate a plurality of baseband signals generated by the digital interface 201, and obtain a modulated signal after each baseband signal is modulated;
- the combining unit 203 is configured to superimpose the modulated signals corresponding to the one or more sub-bands obtained by the digital processing unit 202 according to the control signal sent by the digital interface 201, and input the modulated signals to the corresponding antenna 204;
- the antenna 204 is configured to transmit a modulated signal output by the combining unit 203.
- the system bandwidth needs to be divided into different sub-bands, and each sub-band corresponds to one user, and the system transmits data to the user through the sub-band corresponding to the user.
- the system bandwidth is 10 GHz
- the system bandwidth can be equally distributed to 5 users, that is, the system bandwidth is divided into 5 2 GHz sub-bands for communication.
- the system bandwidth can also be divided into five sub-bands according to the method of minimizing the system outage probability; the bandwidth can be allocated according to the bandwidth that minimizes the total power in the system, and the present invention does not limit the manner in which the system bandwidth is divided.
- each sub-band corresponds to a digital processing unit 202
- the digital processing unit 202 is configured to modulate the signal transmitted in the corresponding sub-band to a signal that meets the system requirements, and further
- the digital processing unit 202 may include: a Field-Programmable Gate Array (FPGA) device and a digital-to-analog conversion device.
- FPGA Field-Programmable Gate Array
- the FPGA device is configured to separately modulate a plurality of baseband signals generated by the digital interface 201, and obtain a modulated signal after each baseband signal is modulated;
- a digital-to-analog conversion device for performing digital-to-analog conversion on a modulated signal to obtain an analog signal.
- the digital processing unit 202 further includes a first band pass filter (BPF) device and a signal amplifier, wherein the first BPF device is used for the analog signal obtained by the digital-to-analog conversion device. Performing filtering to obtain a first filtered signal;
- BPF band pass filter
- a signal amplifier configured to amplify the first filtered signal obtained by the first BPF device.
- the combining unit 203 in the signal processing communication system 200 may further include: a radio frequency switch and a power synthesizer, wherein the radio frequency switch is used under the control of the control signal sent by the digital interface 201. Closed, so that the digital processing unit 202 is connected to the power combiner, and the modulated signal corresponding to the one or more sub-bands obtained by the digital processing unit 202 is input to the power combiner; the power combiner is used to output one of the RF switches. The modulated signals corresponding to the plurality of sub-bands are superimposed and input to the corresponding antenna 204.
- the antenna system of the base station has three sub-bands for signal transmission, respectively: Y 2 and direction, when the RF switch in the combined unit is a single-pole single-throw switch, single-pole single-throw
- the number of switches is 3, 2 and 3 respectively, the number of power combiners is one, and the input of each single-pole single-throw switch is connected with one digital processing unit, and the output of single-pole single-throw switch is combined with power.
- Connected, and the output of the power combiner is connected to the sub-bands of the antenna in all directions, that is, the output of the power combiner is three, which are respectively used to connect the antenna's Yi, ⁇ 2 and direction; as shown in FIG.
- the antenna system of the base station has three sub-bands for signal transmission, which are: ⁇ 2 and ⁇ 3 directions.
- the RF switch in the combined unit is a single-pole multi-throw switch
- the number of single-pole multi-throw switches is 3.
- the number of power synthesizers is three.
- the input of each single-pole multi-throw switch is connected to a digital processing unit.
- the output of the single-pole multi-throw switch is connected to a power combiner.
- the output of the power combiner It is connected to the sub-bands of one direction of the antenna, that is, each power synthesizer can only output one signal, and three power synthesizers correspond to sub-bands of three different directions of the antenna.
- each antenna has 10 sub-bands of different directions for the sub-bands divided by the transmission system, and each direction is a single antenna, that is, one sub-band corresponding to one antenna
- each antenna corresponds to 10 digital processing units to modulate the signals transmitted in the sub-bands; when the sub-bands in each direction are dual antennas, that is, the sub-bands in one direction correspond to two antennas,
- each antenna must correspond to a complete sub-band, that is, there are 10 sub-bands in the system, and each antenna needs 10 digital processing units to modulate the signals transmitted in the sub-bands, There are 2 antennas, and the system needs 20 digital processing units to modulate the signals transmitted in the sub-bands,
- the above signal processing communication system 200 may further include a second BPF device 205 for superimposing the modulated signals corresponding to one or more sub-bands output by the combining unit 203.
- the signal is filtered and the filtered signal is input to the corresponding antenna 204.
- the modulated signal processed by the combining unit 203 is first modulated by a mixer to a frequency band transmitted by the antenna 204 suitable for the system, and mixed.
- the signal after the frequency includes a noise signal
- the second BPF device 205 filters the mixed signal, filters out the noise signal, obtains the second filtered signal, and finally filters the second BPF device 205.
- the filtered signal is amplified and transmitted through antenna 204.
- the FPGA device in the digital processing unit 202 is configured to modulate the baseband signal to obtain a modulated signal, and the modulation may be single carrier modulation or multi-carrier modulation, wherein the single carrier modulation modulates the data stream to be transmitted to a single carrier.
- the transmission is performed, such as Quadrature Amplitude Modulation (QAM); multi-carrier modulation is to divide the channel into several orthogonal sub-channels, convert the high-speed data signal into parallel low-speed sub-data streams, and then modulate to each
- the sub-channels are transmitted, such as: n-coded orthogonal frequency division multiplexing (n-COFDM), where n is the number of subcarriers.
- n-COFDM orthogonal frequency division multiplexing
- the modulation of the baseband signal may be at least one of the following modulation modes: channel coding, Orthogonal Frequency Division Multiplexing (OFDM) modulation, pulse shaping, sample rate conversion, pre-emphasis, pre-equalization , peak-to-average ratio suppression, etc.
- channel coding refers to inserting some symbols into the source data stream to achieve the purpose of error determination and error correction at the receiving end, which can improve data transmission efficiency and reduce error rate; OFDM modulation divides the channel into channels.
- a number of orthogonal subchannels that convert high speed data signals into parallel low speed sub-data streams, modulated onto each sub-channel for transmission; pulse shaping to reduce inter-frame interference caused by signal multipath reflection; sample rate conversion for Reduce the storage capacity and achieve compatibility between different systems; Pre-emphasis refers to the use of the difference between signal characteristics and noise characteristics to effectively process the signal, effectively improving the output signal-to-noise ratio; pre-equalization is used to maintain good orthogonality of the signal
- the peak-to-average ratio suppression is used to avoid signal distortion and orthogonality destruction when a plurality of subchannel signals are superimposed, and the present invention does not limit the modulation mode of the baseband signal.
- the digital-to-analog conversion device is used for digital-to-analog conversion of the signal to be modulated to obtain an analog signal; since the useful signal in the analog signal is flooded in the interference noise, the first BPF device pair simulation is required.
- the signal is selected by frequency, the interference noise is filtered out, and a useful analog signal is obtained.
- the mixer performs mixing processing on the filtered analog signal of the first BPF device, and the analog signal output by the mixer is filtered by the BPF2 device twice. Thereafter, it is amplified by an amplifier and sent to the combining unit 203.
- the combining unit 203 receives the modulated signal modulated by the digital processing unit, and receives a control signal sent by the digital interface, where the control signal is used to determine the received signal according to the idle condition of the antenna or the total power transmission power of the antenna.
- the corresponding transmitting antenna of each signal modulated by the processing unit and the transmitting direction of the corresponding antenna, wherein the control signal can switch the modulated signals to the corresponding power synthesizer by controlling the closing of the RF switch, and the power combiner will The modulated signals of the antennas in the same transmitting direction are combined, and the combined signals are sent to the second BPF device 205, and the second BPF device 205 filters the combined signals output by the combining unit 203. Input to antenna 204.
- the signal processing communication system includes a plurality of sub-bands on a system bandwidth, and includes: a digital interface, at least one digital processing unit, a combining unit, and at least one antenna, wherein the digital interface generates a plurality of baseband signals, each The baseband signals correspond to one subband, and determine the subbands corresponding to each antenna, output control signals to the combining unit, and further, the digital processing unit respectively modulates the plurality of baseband signals generated by the digital interface, each After the baseband signal is modulated, a modulation signal is obtained, and then, the combining unit superimposes the modulated signal corresponding to one or more sub-bands obtained by the digital processing unit according to the control signal sent by the digital interface, and then inputs the signal to the corresponding antenna, and finally, the antenna The modulation signal output by the combining unit is transmitted.
- the modulation signal corresponding to one or more sub-bands obtained by the digital processing unit is superimposed by the combining unit and input to the corresponding antenna, and the antenna is The increase in the number does not require an increase in the number of signal modulation units, so that the cost and complexity of the base station can be reduced.
- FIG. 5 is a schematic structural diagram of a signal processing communication system according to another embodiment of the present invention.
- the total bandwidth of the system is 5 GHz, and the average is divided into 6 sub-bands, that is, the bandwidth of each sub-band is 5/6 GHz, and each sub-band corresponds to One way digital processing unit.
- the signal processing communication system 300 includes: a digital interface 301, a digital processing unit 302, a combining unit 303, and an antenna 304;
- the digital interface 301 divides the total bandwidth of 5 GHz into 6 sub-bands, and the bandwidth in each sub-band is 5/6 GHz, and each sub-band corresponds to one digital processing unit 202.
- each digital processing unit 302 includes an FPGA device, a digital to analog conversion device,
- BPF1 device mixer, BPF2 device, amplifier
- FPGA device for modulating baseband signal
- digital-to-analog converter for converting digital signal modulated by FPGA device to analog signal
- BPF1 device for digital-to-analog conversion device
- the converted analog signal is subjected to filtering processing; the mixer is used for mixing the signal processed by the BPF1 device; the BPF2 device is used for secondary filtering of the mixed-processed signal of the mixer;
- the signal after the secondary filtering of the BPF2 device is amplified and input to the combining unit 303.
- the combining unit 303 includes: a radio frequency switch and a power combiner; wherein the radio frequency switch is used to be closed under the control of the control signal sent by the digital interface, so as to correspond to one or more sub-bands obtained by the digital processing unit 302.
- the modulated signal is input to the corresponding power combiner; the power combiner is configured to superimpose the modulated signals corresponding to the one or more sub-bands output by the RF switch, and input to the corresponding antenna 304.
- the signal processing communication system 300 further includes: an analog radio frequency unit 305, wherein the analog radio frequency unit 305 is configured to transmit the modulated signal superimposed by the power synthesizer in the combining unit 303 in the antenna 304. Previously, the superposed modulated signal output by the power combiner is processed. Specifically, as shown in FIG.
- the method includes: a mixer 3051, a first amplifier 3052, a BPF device 3053, and a a second amplifier 3054, wherein the mixer 3051 is configured to up-convert the superposed modulated signal outputted by the power combiner in the combining unit 303 to a frequency band suitable for antenna transmission; the first amplifier 3052 is configured to use the up-converted signal The amplification is performed; the BPF device is used to filter out noise in the amplified signal of the first amplifier; the second amplifier 3053 is used to amplify the filtered signal of the BPF device 3052, and input the signal to the corresponding antenna 304.
- the RF switch in the combining unit 303 can be a single-pole single-throw switch as shown in FIG. 7, and the number of single-pole single-throw switches is 6.
- the number of power combiners is one, and the input of each single-pole single-throw switch is connected to a digital processing unit 302, and the output of each single-pole single-throw switch is connected to the power combiner.
- X 2 , ... X 5 , X 6 are analog signals processed by the digital signal generated by the digital interface by the digital processing unit 302, Y 2 , ... ⁇ 5 , ⁇ 6 corresponds to the sub-band of the antenna in one direction.
- the signal modulated by the digital processing unit and the modulated ⁇ 2 need to be transmitted through the sub-band of the antenna, and the modulated signal 3 and the modulated signal ⁇ 5 need to pass through the sub-band of the antenna in the ⁇ 4 direction.
- the RF switch switches the modulated signal and the modulated signal ⁇ 2 to the sub-band corresponding to the ⁇ 5 direction under the control of the control signal sent by the digital interface, the modulated signal and the modulated signal ⁇ 5 Switching to the sub-band corresponding to the ⁇ 4 direction, and then the power combiner combines the modulated signal that needs to be transmitted through the sub-band corresponding to the ⁇ 5 direction with the modulated signal ⁇ 2 , that is, recombined and input to the antenna
- the sub-band corresponding to the ⁇ direction will need to pass
- each modulated signal can only transmit subbands in one direction of the antenna, but different modulated signals can be selected by subbands in the same direction of the antenna.
- the radio frequency switch in the combining unit 303 can be a single-pole multi-throw switch as shown in FIG. 8, and the number of the power synthesizers is Six, the input end of each single-pole multi-throw switch is connected with one-way digital processing unit 302, and the output end of each single-pole multi-throw switch is connected with six power synthesizers, wherein Xi, X 2 , Vietnamese X 5 and X 6 are modulated signals processed by the digital signal generated by the digital interface 301 by the digital processing unit 302, and Yi, Y 2 , ... ⁇ 5 and ⁇ 6 respectively correspond to the sub-bands of the antenna in one direction.
- a sub-band of one direction of 304 is A sub-band of one direction of 304.
- the signal ⁇ ⁇ 2 modulated by the digital processing unit 302 needs to be transmitted through the sub-band of the ⁇ 5 direction of the antenna, and the modulated signal and the modulated signal ⁇ 5 need to pass through the sub-band of the antenna in the ⁇ 4 direction.
- the RF switch control signal is a digital interface, the signal ⁇ modulated signal and the modulation switch 2 to 5 Upsilon direction corresponding subband power combiner
- the modulated signal ⁇ 5 is switched to the power combiner 4 corresponding to the sub-band corresponding to the ⁇ 4 direction, and then the power combiner 5 will need to transmit through the sub-band corresponding to the ⁇ 5 direction.
- the modulated signal ⁇ modulated signal ⁇ 2 is combined, that is, recombined and transmitted through the sub-band corresponding to the ⁇ 5 direction of the antenna, and the power combiner 4 needs to pass through the sub-band corresponding to the ⁇ 4 direction.
- the transmitted analog signal and the analog signal ⁇ 5 are combined, that is, recombined and transmitted through the sub-band corresponding to the ⁇ 4 direction of the antenna. It should be noted that each modulated signal can only be selected in one direction of the antenna for transmission, but different modulated signals can be selected by subbands in the same direction of the antenna for transmission.
- the RF switch in the combining unit 303 can be a single-pole single-throw switch as shown in FIG. 9, and the number of the RF switches is 12, because The number of antennas is two, so the number of power combiners is two; the input of each single-pole single-throw switch is connected to a digital processing unit 302, and the output of each single-pole single-throw switch is connected to one power combiner. .
- Y id represents the signal on the i-th sub-band, the j-th antenna.
- the signals processed by the signal modulation unit 302 are X u , X 12 ; X 21 , X 22 ; X 31 , X 32 , ..., X 61 , X 62 , where X u , X 21 ... ... X 61 is transmitted through a sub-band in either direction on the first antenna;
- X 12 , x 22 ?? ⁇ 62 is transmitted through the sub-bands in either direction on the second antenna. It should be noted that the signals processed by the digital processing unit 302 can only be allocated to sub-bands of one direction of one of the antennas for transmission.
- the total bandwidth of the system is divided into six sub-bands, and each sub-band corresponds to one digital processing unit, so there are six digital processing units and 12 radio frequency switches in the system, 2 A power synthesizer, the input of each RF switch is connected to a digital processing unit, and the output of each RF switch is connected to a corresponding one of the power combiners.
- Xll represents a first sub antennas need of a tape transfer direction
- 2 represents a need of Sub-band transmission in the first direction of the two antennas
- 22 indicates sub-band transmission in the second direction through the second antenna
- X 32 indicates sub-band transmission in the third direction through the second antenna.
- the signal processed by the digital processing unit needs to transmit two signals through the sub-band in the first direction of the first antenna, and the signal transmitted through the sub-band in the first direction of the second antenna is One, the signal to be transmitted through the third direction of the second antenna is two, the signal that needs to be transmitted through the second direction of the second antenna is one, and the control signal sent by the single-pole single-throw switch on the digital interface Under the control Switching the signal modulated by the digital processing unit to the corresponding power combiner, that is, switching X u to the power combiner corresponding to the first antenna, and switching x 12 , x 22 , 2 to the power combiner corresponding to the second antenna Since the signal to be transmitted through the first sub-band in the first direction is two, the power combiner corresponding to the first antenna combines the two signals transmitted by the sub-band in the first direction of the first antenna.
- the road, and the signal after the combined signal is sent to the first direction of the first antenna by up-conversion, filtering and amplification processing; similarly, the sub-band is transmitted through the first direction of the second antenna.
- the signal is one.
- the power combiner corresponding to the second antenna is not required to perform the combining process, and the signal is directly sent to the first direction of the second antenna by up-conversion, filtering and amplification processing;
- the sub-band of the second antenna in the second direction also transmits one signal.
- the power combiner corresponding to the second antenna is not required to perform the combining processing, and the signal is directly up-converted.
- the second antenna is transmitted in the first direction; since the signal transmitted by the second third direction subband is required, the power combiner corresponding to the second antenna will need to be
- the two signals transmitted by the sub-bands of the two antennas in the third direction are combined, and the combined signals are transmitted to the third direction of the second antenna by up-conversion, filtering and amplification processing.
- the combining unit in another embodiment in an implementation scenario where the number of antennas is two, the combining unit
- the RF switch in 303 can be a single-pole multi-throw switch as shown in FIG. 10, the number of single-pole multi-throw switches is 12, and the number of power synthesizers is 12, that is, one direction for each direction of each antenna.
- the power combiner, the input of each single-pole multi-throw switch is connected with six signal processing units, and the output of each single-pole multi-throw switch is connected with 12 power synthesizers.
- Xi represents the subband in the i-th direction, and the signal on the jth antenna.
- Yi, j represents the sub-band in the i-th direction, the signal on the j-th antenna.
- Each power combiner corresponds to a subband of one direction of each antenna.
- each sub-band corresponds to 1 digital processing unit, so there are 6 digital processing units and 12 RF switches in the system.
- a power synthesizer the input of each RF switch is connected to 6 digital processing units, and the output of each RF switch is connected to 12 power combiners.
- Xii represents require tape transport by the first sub-direction of an antenna
- 2 denotes required by the second Sub-band transmission in the first direction of the root antenna
- 22 indicates sub-band transmission in the second direction through the second antenna
- X 32 indicates sub-band transmission in the third direction through the second antenna. That is, after the digital processing unit The signal to be processed needs to be transmitted by the sub-band in the first direction of the first antenna, and the signal to be transmitted through the sub-band in the first direction of the second antenna is one.
- the third antenna transmits two signals in the third direction, and one signal needs to be transmitted through the second direction of the second antenna.
- the single-pole multi-throw switch controls the digital processing unit under the control of the control signal sent by the digital interface.
- the modulated signal is switched to the corresponding power combiner, also about ⁇ knife transducer to the first direction of the first antenna of the subbands in the power combiner, the first sub directions 2 is switched to the second antennas with the corresponding power combiner sub second direction 22 is switched to the second antenna with the corresponding power combiner sub third direction 2 is switched to the second antenna with the corresponding power combiner Since there are two signals to be transmitted by the first sub-band in the first direction, the power combiner corresponding to the sub-band in the first direction of the first antenna needs the first direction of the first antenna.
- the two signals transmitted by the sub-band are combined and combined
- the subsequent signal is sent to the first direction of the first antenna by up-conversion, filtering, and amplification processing.
- the signal transmitted by the sub-band in the first direction of the second antenna is one, this is When the power combiner corresponding to the first direction of the second antenna is not required to perform the combining process, the signal is directly sent to the first direction of the second antenna by up-conversion, filtering, and amplification processing;
- the sub-bands in the second direction of the two antennas also transmit one signal.
- the power combiner corresponding to the second direction of the second antenna is not required to perform the combining processing, and the signal is directly subjected to up-conversion, filtering, and After the amplification process, the second antenna is transmitted in the first direction; since the number of signals to be transmitted through the second sub-band in the third direction is two, the sub-band in the third direction of the second antenna corresponds to The power combiner combines the two signals transmitted by the sub-bands in the third direction of the second antenna, and combines the combined signals into the second antenna by up-conversion, filtering, and amplification processing. Launch in 3 directions.
- the digital interface first decomposes the total bandwidth into a plurality of sub-bands, and then processes the data into a combined unit through a digital processing unit, and modulates the digital processing unit through a radio frequency switch in the combining unit.
- the signal is switched to the corresponding antenna, and the different signals in the sub-bands in the same direction of the antenna are combined by the power combiner in the combining unit, and the combined signals are input to the corresponding sub-bands of the antenna for transmission, wherein
- the number of digital processing units is still six, that is, as the number of antennas increases, there is no need to increase the number of digital processing units. Thereby the base station cost and complexity can be reduced.
- An embodiment of the present invention provides a base station, including the embodiment corresponding to the foregoing FIG. 2 to FIG.
- the signal processing communication system has a similar implementation principle and technical effect.
- the digital interface in the base station first decomposes the total bandwidth into a plurality of sub-bands, and then processes the digital processing unit and sends it to the combining unit through the RF switch in the combining unit.
- the sub-band transmits, wherein, compared with the number of antennas of the base station is one, in the scenario where the number of antennas of the base station is two, the number of digital processing units is still six, that is, the number of base station antennas
- the increase does not require an increase in the number of digital processing units, thereby reducing base station cost and complexity.
- FIG. 11 is a schematic structural diagram of a signal processing communication system according to another embodiment of the present invention.
- the system bandwidth includes multiple sub-bands.
- the signal processing communication system 400 includes: a generating module 401, a modulation module 402, and a processing module. 403 and at least one antenna 404; wherein, the generating module 401 is configured to generate a plurality of baseband signals, each baseband signal corresponding to one subband; and is further configured to determine a subband corresponding to each antenna 404, and output to the processing module 403.
- the control module 402 is configured to respectively modulate a plurality of baseband signals generated by the generating module 401, and each of the baseband signals is modulated to obtain a modulated signal.
- the processing module 403 is configured to use the control signal sent by the generating module 401.
- the modulation signals corresponding to one or more sub-bands obtained by the modulation module 402 are superimposed and input to the corresponding antenna 404.
- the antenna 404 is used to transmit the modulation signal output by the processing module 403.
- the modulation module 402 in the above signal processing communication system 400 includes:
- the modulating unit 4021 is configured to separately adjust a plurality of baseband signals generated by the generating module 401, and each of the baseband signals is modulated to obtain a modulated signal.
- the digital-to-analog conversion unit 4022 is configured to perform digital-to-analog conversion on the modulated signal to obtain an analog signal. Further, as shown in FIG. 12, for the modulation module in the above signal processing communication system 400
- the first filtering unit 4023 is configured to filter the analog signal obtained by the analog-to-digital conversion unit 4022 to obtain a first filtered signal.
- the signal amplifying unit 4024 is configured to amplify the first filtered signal obtained by the first filtering unit 4023.
- the signal processing communication device 400 further includes: a second filtering unit 407, configured to superimpose the modulated signal corresponding to one or more sub-bands output by the processing module 403 Filtering is performed, and the filtered signal is input to the corresponding antenna 404.
- a second filtering unit 407 configured to superimpose the modulated signal corresponding to one or more sub-bands output by the processing module 403 Filtering is performed, and the filtered signal is input to the corresponding antenna 404.
- a signal processing communication system provided by an embodiment of the present invention first generates a plurality of baseband signals, and each baseband signal corresponds to one subband, and is further configured to determine a subband corresponding to each antenna, and output control to the processing module. a signal, and then a modulation module, respectively modulating a plurality of baseband signals generated by the generating module, and each baseband signal is modulated to obtain a modulated signal, and the processing module obtains the modulation module according to the control signal sent by the generating module.
- the modulated signals corresponding to one or more sub-bands are superimposed and input to the corresponding antenna.
- the antenna transmits the modulated signal output by the processing module.
- the modulation module corresponding to one or more sub-bands obtained by the modulation module is superimposed and input to the corresponding antenna by the processing module, and as the number of antennas increases, the number of modulation modules does not need to be increased, thereby reducing the cost of the base station and the complexity.
- the generating module in the base station generates multiple baseband signals. And each baseband signal corresponds to one subband, and is further configured to determine a subband corresponding to each antenna, and output a control signal to a processing module in the base station, and then modulate the module, and generate multiple basebands for the generating module in the base station.
- the signals are separately modulated, and each of the baseband signals is modulated to obtain a modulated signal.
- the processing module After the processing, the processing module superimposes the modulated signals corresponding to one or more sub-bands obtained by the modulation module according to the control signal sent by the generating module, and then inputs the corresponding signals to the corresponding signals.
- the antenna finally, the antenna transmits the modulated signal output by the processing module.
- the modulation signal corresponding to one or more sub-bands obtained by the modulation module is superimposed and input to the corresponding antenna by the processing module in the base station, and the number of modulation modules in the base station does not need to be increased as the number of antennas in the base station increases. Thus, the cost and complexity of the base station can be reduced.
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Abstract
本发明提供了一种信号处理通信系统、信号处理通信装置和基站,其中,射频开关在数字接口发送的控制信号的控制下闭合,将数字处理单元与功率合成器相连接,数字处理单元得到的一个或多个子带所对应的调制信号输入至功率合成器,最后功率合成器对射频开关所输出的一个或多个子带所对应的调制信号进行叠加后输入至对应的天线。其中,随着天线数量的增加,只需增加射频开关和功率合成器的数量,而无需增加数字处理单元的数量,从而降低了成本。
Description
信号处理通信系统、 信号处理通信装置和基站 技术领域
本发明涉及无线通信技术, 尤其涉及一种信号处理通信系统、 信号处 理通信装置和基站。 背景技术
随着通信技术的发展, 现在的无线通信技术已经进入了 Gigabit时代。 由于毫米波可以提供极宽的带宽, 所以正逐渐成为 Gigabit无线系统市场 的主角。 而毫米波中的 E-Band因具有 10GHz(71-76,81-86GHz)的带宽, 且 处于大气衰落低谷, 因此得到了 Gigabit无线系统中长距离高速无线点对 点系统的青睐。 整个 E-band支持的传输速率可以达到上百 Gbps。 在实际 的基站应用中, 整个高频段所能处理的速率需要按需分配到天线的多个不 同的扇区 (方向) 中。
现有技术的方案中,通过现场可编程门阵列(Field— Programmable Gate Array简称为: FPGA)器件以及射频器件来控制带宽的分配和速率的分配, 通过分配天线需要的 FPGA以及射频器件的个数, 实现速率的按需分配, 例如, 一根天线对应 10GHZ的 E-BAND的带宽, 如果将 10GHZ分为 10 个子带宽,并且每一个子带宽需要一个 FPGA以及一路射频器件进行处理, 因此, 一个天线对应 10个 FPGA以及 10路射频器件, 而当实际应用中, 如果有两根天线, 就需要 20个 FPGA以及 20路射频器件。
然而, 利用上述方法控制带宽的分配和速率的分配, 随着天线数目的 增加, 会导致 FPGA以及射频器件的个数的增加, 从而导致基站成本以及 复杂度高的问题。 发明内容 本发明实施例提供一种信号处理通信系统、 信号处理通信装置和基 站, 以克服现有技术中基站成本以及复杂度高的问题。
本发明第一方面提供一种信号处理通信装置, 包括: 射频开关和功率合
成器;
所述射频开关, 用于在数字接口发送的控制信号的控制下闭合, 以使数 字处理单元与所述功率合成器相连接, 所述数字处理单元得到的一个或多个 子带所对应的调制信号输入至所述功率合成器;
所述功率合成器, 用于对所述射频开关所输出的一个或多个子带所对应 的调制信号进行叠加后输入至对应的天线。
在第一方面的第一种可能的实现方式中, 所述天线的个数为一根, 所述 功率合成器的个数为一个;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述功率合成器连接。
在第一方面的第二种可能的实现方式中, 所述天线的个数为一根, 所述 功率合成器的个数为多个;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 每个输出端与多个所述功率合成器连 接。
在第一方面的第三种可能的实现方式中, 所述天线的个数为至少两根, 每根所述天线对应一个所述功率合成器;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的所 述功率合成器连接。
在第一方面的第四种可能的实现方式中, 所述天线的个数为至少两根, 每根所述天线对应多个所述功率合成器;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的多 个所述功率合成器连接。
本发明第二方面提供一种信号处理通信系统,系统带宽上包括多个子带, 所述系统包括: 数字接口, 至少一个数字处理单元, 合路单元和至少一根天 线;
所述数字接口, 用于产生多个基带信号, 每个所述基带信号对应一个所 述子带; 还用于确定每根所述天线对应的子带, 并向所述合路单元输出控制
信号;
所述数字处理单元, 用于对所述数字接口所产生的所述多个基带信号分 别进行调制, 每个所述基带信号调制后得到一个调制信号;
所述合路单元, 用于根据所述数字接口发送的所述控制信号, 将所述数 字处理单元得到的一个或多个子带所对应的调制信号叠加后输入给对应的天 线;
所述天线, 用于发射所述合路单元输出的调制信号。
在第二方面的第一种可能的实现方式中, 所述合路单元包括:
射频开关, 用于在所述数字接口发送的所述控制信号的控制下闭合, 以 使所述数字处理单元与所述功率合成器相连接, 所述数字处理单元得到的一 个或多个子带所对应的调制信号输入至所述功率合成器;
功率合成器, 用于对所述射频开关所输出的一个或多个子带所对应的调 制信号进行叠加后输入至对应的天线。
结合第二方面的第一种可能的实现方式, 在第二方面的第二种可能的实 现方式中, 所述系统包括一根所述天线, 所述功率合成器的个数为一个; 所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述功率合成器连接。
结合第二方面的第一种可能的实现方式, 在第二方面的第三种可能的实 现方式中, 所述系统包括一根所述天线, 所述功率合成器的个数为多个; 所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 每个输出端与多个所述功率合成器连 接。
结合第二方面的第一种可能的实现方式, 在第二方面的第四种可能的实 现方式中, 所述系统包括至少两根所述天线, 每根所述天线对应一个所述功 率合成器;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的所 述功率合成器连接。
结合第二方面的第一种可能的实现方式, 在第二方面的第五种可能的实 现方式中, 所述系统包括至少两根所述天线, 每根所述天线对应多个所述功
率合成器;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的多 个所述功率合成器连接。
结合第二方面, 第二方面的第一至第五种任一种可能的实现方式, 在第 二方面的第六种可能的实现方式中, 所述数字处理单元包括:
现场可编程门阵列 FPGA器件,用于对所述数字接口所产生的多个基带信 号分别进行调制, 每个所述基带信号调制后得到一个调制信号;
数模转换器件, 用于对所述调制信号进行数模转换, 得到模拟信号。 结合第二方面的第六种可能的实现方式, 在第二方面第七种可能的实现 方式中, 还包括:
第一带通滤波器 BPF器件, 用于对经过所述模数转换器件得到的所述模 拟信号进行滤波, 得到第一滤波信号;
信号放大器, 用于对所述第一 BPF器件得到的所述第一滤波信号进行放 大。
结合第二方面, 第二方面的第一至第七种任一种可能的实现方式, 在第 二方面的第八种可能的实现方式中, 还包括: 第二 BPF器件;
所述第二 BPF器件, 用于对所述合路单元输出的一个或多个子带所对应 的调制信号叠加后的信号进行滤波, 并将滤波后的信号输入给对应的天线。
本发明第三方面提供一种基站, 包括如第二方面、 第二方面的第一至第 八种可能的实现方式中任一项所述的系统。
本发明第四方面提供一种信号处理通信系统,系统带宽上包括多个子带, 所述系统包括: 生成模块, 调制模块, 处理模块和至少一根天线;
所述生成模块, 用于产生多个基带信号, 每个所述基带信号对应一个所 述子带; 还用于确定每根所述天线对应的子带, 并向所述处理模块输出控制 信号;
所述调制模块, 用于对所述生成模块所产生的所述多个基带信号分别进 行调制, 每个所述基带信号调制后得到一个调制信号;
所述处理模块, 用于根据所述生成模块发送的所述控制信号, 将所述调 制模块得到的一个或多个子带所对应的调制信号叠加后输入给对应的天线;
所述天线, 用于发射所述处理模块输出的调制信号。
在第四方面的第一种可能的实现方式中, 所述调制模块包括:
调制单元, 用于对所述生成模块所产生的多个基带信号分别进行调制, 每个所述基带信号调制后得到一个调制信号;
数模转换单元, 用于对所述调制信号进行数模转换, 得到模拟信号。 结合第四方面的第一种可能的实现方式, 在第四方面的第二种可能的实 现方式中, 还包括:
第一滤波单元, 用于对经过所述数模转换器件得到的所述模拟信号进行 滤波, 得到第一滤波信号;
信号放大单元,用于对所述滤波单元得到的所述第一滤波信号进行放大。 结合第四方面、 第四方面的第一或第二种可能的实现方式, 在第四方面 的第三种可能的实现方式中, 还包括: 第二滤波单元;
所述第二滤波单元, 用于对所述处理模块输出的一个或多个子带所对应 的调制信号叠加后的信号进行滤波, 并将滤波后的信号输入给对应的天线。
本发明第第五方面提供一种基站, 包括如第四方面、 第四方面的第一至 第三种可能的实现方式中任一项所述的系统。
本发明提供一种信号处理通信系统、信号处理通信装置和基站,包括: 射频开关和功率合成器, 其中, 射频开关在数字接口发送的控制信号的控制 下闭合, 将数字处理单元与功率合成器相连接, 数字处理单元得到的一个或 多个子带所对应的调制信号输入至功率合成器, 最后功率合成器对射频开关 所输出的一个或多个子带所对应的调制信号进行叠加后输入至对应的天线。 其中, 随着天线数量的增加, 只需增加射频开关和功率合成器的数量, 而无 需增加数字处理单元的数量, 从而降低了成本。 附图说明 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。
图 1为本发明实施例提供的信号处理通信装置的结构示意图;
图 2为本发明实施例提供的信号处理通信系统的结构示意图; 图 3为本发明实施例提供的合路单元中的射频开关为单刀单掷开关时 的结构示意图;
图 4为本发明实施例提供的合路单元中的射频开关为单刀多掷开关时 的结构示意图;
图 5为本发明另一个实施例提供的信号处理通信系统的结构示意图; 图 6为本发明还一个实施例提供的信号处理通信系统的结构示意图; 图 7为本发明一个实施例提供的单刀单掷开关结构示意图;
图 8为本发明一个实施例提供的单刀多掷开关结构示意图;
图 9为本发明另一个实施例提供的单刀单掷开关结构示意图; 图 10为本发明另一个实施例提供的单刀多掷开关结构示意图; 图 11为本发明另一个实施例提供的信号处理通信系统的结构示意图; 图 12为本发明再一个实施例提供的信号处理通信系统的结构示意图。 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。
图 1为本发明实施例提供的信号处理通信装置的结构示意图, 如图 1所 示, 该信号处理装置 100包括: 射频开关 101和功率合成器 102, 其中, 射 频开关 101, 用于在数字接口发送的控制信号的控制下闭合, 以使数字处理 单元与功率合成器 102相连接, 数字处理单元得到的一个或多个子带所对应 的调制信号输入至功率合成器 102; 功率合成器 102, 用于对射频开关 101所 输出的一个或多个子带所对应的调制信号进行叠加后输入至对应的天线。
可选的, 在本发明一个实施例中, 当天线的个数为 1根时, 功率合成器 的个数为 1个, 其中, 射频开关 101包括: 多个单刀单掷开关器件, 每个单 刀单掷开关器件的输入端与数字处理单元连接, 输出端与功率合成器 102连
接。
可选的, 在本发明另一个实施例中, 当天线的个数为 1根, 功率合成器 的个数为多个, 其中, 射频开关 101包括: 多个单刀多掷开关器件, 每个单 刀多掷开关器件的输入端与数字处理单元连接, 每个输出端与多个功率合成 器 102连接。
可选的, 在本发明还一个实施例中, 天线的个数为至少两根, 每根天线 对应一个功率合成器 102, 其中, 射频开关 101包括: 多个单刀单掷开关器 件, 每个单刀单掷开关器件的输入端与数字处理单元连接, 输出端与信号调 制单元对应的功率合成器 102连接。
可选的, 在本发明再一个实施例中, 天线的个数为至少两根, 每根天线 对应多个功率合成器 102, 其中, 射频开关 101包括: 多个单刀多掷开关器 件, 每个单刀多掷开关器件的输入端与数字处理单元连接, 输出端与信号调 制单元对应的多个功率合成器 102连接。
具体的, 当数字接口单元产生多个基带信号, 并按照使系统中断概率最 小的方式、 或者按照使得系统中总功率最小的方式等, 确定基带信号可以通 过天线的哪一个子带发射, 数字接口将产生的多个基带信号输入至数字处理 单元, 以使数字处理单元对基带信号进行调制, 然后, 射频开关 101就会在 数字接口发送的控制信号的控制下闭合, 将数字处理单元调制的信号切换到 天线子带对应的功率合成器 102, 功率合成器 102将同一个天线方向的多路 数字处理单元调制的信号进行叠加, 并将叠加后的调制信号输入至对应的天 线方向, 通过天线发射, 当天线的数量为一根, 且有三个不同方向的子带可 以用于信号的发射时, 此时需要三个数字处理单元对数字接口产生的基带信 号进行调制, 因为每一个数字处理单元调制后的信号只能选择天线的一个方 向发射, 但多个天线可以选择同一个方向发射, 而当天线的数量为两根, 也 有三个不同的方向的子带可以用于信号的发射时, 由于数字处理单元调制后 的信号只能选择一个天线的一个方向进行发射, 因为有三个方向, 所以, 此 时, 同样只需要三个数字处理单元对数字接口产生的基带信号进行调制, 在 天线用于发射信号的子带数目不变的前提下, 数字处理单元的个数不会随着 天线数量的增加而增加, 从而可以降低成本。
本发明实施例提供的信号处理装置, 包括: 射频开关和功率合成器, 其
中, 射频开关在数字接口发送的控制信号的控制下闭合, 将数字处理单元与 功率合成器相连接, 数字处理单元得到的一个或多个子带所对应的调制信号 输入至功率合成器, 最后功率合成器对射频开关所输出的一个或多个子带所 对应的调制信号进行叠加后输入至对应的天线。其中, 随着天线数量的增加, 无需增加数字处理单元的数量, 从而降低了基站的成本。
图 2为本发明实施例提供的信号处理通信系统的结构示意图, 其中, 系 统带宽上包括多个子带, 如图 2所示, 该信号处理通信系统 200包括: 数字 接口 201、 至少一个数字处理单元 202, 合路单元 203和至少一根天线 204; 其中,
数字接口 201用于产生多个基带信号, 每个基带信号对应一个子带, 还 用于确定每根天线 204对应的子带, 并向合路单元 203输出控制信号;
数字处理单元 202, 用于对数字接口 201所产生的多个基带信号分别进 行调制, 每个基带信号调制后得到一个调制信号;
合路单元 203, 用于根据数字接口 201发送的控制信号, 将数字处理单 元 202 得到的一个或多个子带所对应的调制信号叠加后输入给对应的天线 204;
天线 204, 用于发射合路单元 203输出的调制信号。
具体的, 当系统中有多个用户与基站进行通信时, 就需要将系统带宽划 分为不同的子带, 并且每个子带对应一个用户, 系统通过用户对应的子带为 用户传输数据。 例如, 当系统带宽为 10GHZ时, 如果系统中与基站进行通信 的用户为 5个, 可以将系统带宽平均分配给 5个用户, 也即, 将系统带宽划 分为 5个 2GHZ的子带, 进行通信; 也可以按照使系统中断概率最小的方式 系统带宽划分为 5个子带; 也可以按照使得系统中总功率最小的带宽进行分 配, 本发明不对系统带宽划分的方式加以限制。
当系统按照需求将系统带宽划分为不同的子带后, 每个子带对应一个数 字处理单元 202, 数字处理单元 202用于将对应子带中传输的信号调制为符 合系统要求的信号, 进一歩的, 数字处理单元 202可以包括: 现场可编程门 阵列(Field—Programmable Gate Array简称为: FPGA)器件、数模转换器件。
其中, FPGA器件, 用于对数字接口 201所产生的多个基带信号分别进 行调制, 每个基带信号调制后得到一个调制信号;
数模转换器件, 用于对调制信号进行数模转换, 得到模拟信号。
进一歩的, 数字处理单元 202还包括第一带通滤波器 (Band Pass Filter, 简称为: BPF) 器件和信号放大器, 其中, 第一 BPF器件, 用于对经过数模 转换器件得到的模拟信号进行滤波, 得到第一滤波信号;
信号放大器, 用于对第一 BPF器件得到的第一滤波信号进行放大。
进一歩的, 对于上述信号处理通信系统 200中的合路单元 203, 其还可 以进一歩的包括: 射频开关和功率合成器, 其中, 射频开关用于在数字接口 201发送的控制信号的控制下闭合, 以使数字处理单元 202与功率合成器相 连接, 数字处理单元 202得到的一个或多个子带所对应的调制信号输入至功 率合成器; 功率合成器, 用于对射频开关所输出的一个或多个子带所对应的 调制信号进行叠加后输入至对应的天线 204。
例如, 如图 3所示, 基站的天线系统有三个方向的子带用于信号的发射, 分别为: Y 2和 方向, 当合路单元中的射频开关为单刀单掷开关时, 单 刀单掷开关的数量为 3个, 分别为 2和 3, 功率合成器的数量为 1个, 且每个单刀单掷开关的输入端与 1路数字处理单元连接, 单刀单掷开关的输 出端与功率合成器连接, 并且功率合成器的输出端与天线的各个方向的子带 连接, 也即功率合成器的输出端为 3个, 分别用于连接天线的 Yi、 ¥2和 方向; 如图 4所示, 基站的天线系统有三个方向的子带用于信号的发射, 分 别为: ¥2和¥3方向, 当合路单元中的射频开关为单刀多掷开关时, 单刀 多掷开关的数量为 3个, 功率合成器的数量为 3个, 每个单刀多掷开关的输 入端与一路数字处理单元连接, 单刀多掷开关的输出端与一个功率合成器连 接, 功率合成器的输出端与天线的 1个方向的子带连接, 也即, 每个功率合 成器只能输出 1路信号, 且 3个功率合成器对应天线的三个不同的方向的子 带。
进一歩的, 假设系统总带宽为 10GHZ, 将总带宽划分为 10个不同的子 带, 且每个子带中的带宽相同, 也即, 将总带宽 10GHZ划分为 10个 1GHZ 的子带, 每个子带对应 1路数字处理单元, 每根天线有 10个不同的方向的子 带用于传输系统所划分的子带, 且每个方向是单天线, 也即 1个方向的子带 对应 1根天线, 此时, 每根天线对应 10路数字处理单元对子带中传输的信号 进行调制; 当每个方向的子带是双天线, 也即 1个方向的子带对应 2根天线,
在现有技术中, 每根天线都必须对应完整的子带, 也就是说, 系统中有 10个 子带, 每根天线就需要有 10路数字处理单元对子带中传输的信号进行调制, 由于有 2根天线,此时系统就需要 20路数字处理单元对子带中传输的信号进 行调制, 也即, 在现有技术中数字处理单元的数量会随着天线数量的增加而 增加; 而本发明实施例中, 由于将总带宽 10GHZ划分为 10个 1GHZ的子带, 每个子带对应 1路数字处理单元,因此只需 10路数字处理单元对对应子带中 的信号进行调制, 也即, 在本发明实施例中, 在子带数量不变的情况下, 数 字处理单元的数量不会改变, 不会随着天线数量的增加而增加, 可以有效降 低成本。
进一歩的, 如图 2所示, 对于上述信号处理通信系统 200, 其还可以包 括第二 BPF器件 205, 用于对合路单元 203输出的一个或多个子带所对应的 调制信号叠加后的信号进行滤波, 并将滤波后的信号输入给对应的天线 204。
具体的, 由于经过合路单元 203处理后的合路信号的传输频段会发生变 化, 首先通过混频器将合路单元 203处理后的调制信号调制到适合系统中的 天线 204发射的频段, 混频后的信号中含有噪声信号, 第二 BPF器件 205将 混频后的信号进行滤波处理, 滤除其中的噪声信号, 得到第二滤波信号, 最 后将第二 BPF器件 205滤波处理后的第二滤波信号放大并通过天线 204发射。
进一歩的,数字处理单元 202中的 FPGA器件用于对基带信号进行调制, 得到调制信号, 调制可以为单载波调制或多载波调制, 其中, 单载波调制将 需要传输的数据流调制到单个载波上进行传送, 如正交振幅调制(Quadrature Amplitude Modulation, 简称: QAM) ; 多载波调制就是将信道分成若干正交 子信道, 将高速数据信号转换成并行的低速子数据流, 然后调制到在每个子 信道上进行传输, 如: 编码正交频分复用调制 (n-coded orthogonal frequency division multiplexing, 简称 n-COFDM) , 其中 n为子载波数目。 本发明不对 调制方式加以限制。
并且, 对基带信号的调制可以为以下调制方式中的至少一种: 信道编码、 正交频分复用 (Orthogonal Frequency Division Multiplexing , 简称 OFDM) 调制、 脉冲成形, 采样率转换, 预加重, 预均衡, 峰均比抑制等。 其中, 信 道编码是指在源数据码流中加插一些码元, 从而达到在接收端进行判错和纠 错的目的, 可以提高数据传输效率, 降低误码率; OFDM调制是将信道分成
若干正交子信道, 将高速数据信号转换成并行的低速子数据流, 调制到在每 个子信道上进行传输; 脉冲成形用于降低由信号多径反射引起的幅间干扰; 采样率转换用于减小存储容量, 实现不同系统相互兼容; 预加重是指利用信 号特性和噪声特性的差别来有效地对信号进行处理, 有效提高输出信噪比; 预均衡用于使得信号保持良好的正交性; 峰均比抑制用于避免多个子信道信 号叠加时, 信号畸变以及正交性的破坏, 本发明不对基带信号的调制方式加 以限制。
进一歩的, 数模转换器件, 用于对需要调制的信号进行数模转换, 得到 模拟信号; 由于模拟信号中有用的信号会被淹没在干扰噪声中, 因此, 就需 要第一 BPF器件对模拟信号进行频率选择, 滤除干扰噪声, 得到有用的模拟 信号, 然后混频器对第一 BPF器件滤波后的模拟信号进行混频处理, 混频器 输出的模拟信号经过 BPF2器件二次进行滤波处理后, 再通过放大器进行放 大处理后送入合路单元 203。
合路单元 203接收到经数字处理单元调制后的调制信号, 并且接收数字 接口发送的控制信号, 所述控制信号用于根据天线的空闲情况、 或天线的总 功发射功率情况来为确定接收信号处理单元调制的各路信号的对应的发射天 线以及对应天线的发射方向, 其中, 控制信号通过控制射频开关的闭合, 就 可以将调制的各路信号切换至对应的功率合成器, 功率合成器将天线同一发 射方向中的各路调制的信号进行合路, 并将合路后的信号送入第二 BPF器件 205 , 第二 BPF器件 205对合路单元 203输出的合路信号进行滤波处理后, 输入至天线 204。
本实施例提供的信号处理通信系统, 系统带宽上包括多个子带, 并包括: 数字接口, 至少一个数字处理单元, 合路单元和至少一根天线, 其中, 数字 接口产生多个基带信号, 每个基带信号对应一个子带, 并确定每根天线对应 的子带, 向合路单元输出控制信号, 进一歩的, 数字处理单元, 对数字接口 所产生的多个基带信号分别进行调制, 每个基带信号调制后得到一个调制信 号, 然后, 合路单元, 根据数字接口发送的控制信号, 将数字处理单元得到 的一个或多个子带所对应的调制信号叠加后输入给对应的天线, 最后, 天线 发射合路单元输出的调制信号。 其中, 通过合路单元将数字处理单元得到的 一个或多个子带所对应的调制信号叠加后输入给对应的天线, 并且随着天线
数目的增加, 无需增加信号调制单元的个数, 从而可以降低基站成本以及复 杂度。
图 5为本发明另一个实施例提供的信号处理通信系统的结构示意图, 系 统的总带宽为 5GHz, 平均分成 6个子带, 也即, 每个子带的带宽的 5/6GHz, 每一个子带对应一路数字处理单元。
如图 5所示, 该信号处理通信系统 300包括: 数字接口 301、 数字处理 单元 302、 合路单元 303和天线 304;
其中, 数字接口 301将 5GHz的总带宽平均分成 6个子带, 每个子带中 的带宽为 5/6GHz, 且每一个子带对应一路数字处理单元 202。
进一歩的, 每一路数字处理单元 302包括 FPGA器件、 数模转换器件、
BPF1器件、 混频器、 BPF2器件、 放大器; FPGA器件用于对基带信号进行 调制; 数模转换器件用于将 FPGA器件调制后的数字信号转换为模拟信号; BPF1器件用于对数模转换器件转换后的模拟信号进行滤波处理;混频器用于 对 BPF1器件滤波处理后的信号进行混频处理; BPF2器件用于对混频器进行 混频处理后的信号进行二次滤波处理; 放大器用于对 BPF2器件二次滤波后 处理后的信号进行放大, 并输入至合路单元 303。
进一歩的, 合路单元 303包括: 射频开关和功率合成器; 其中, 射频开 关用于在数字接口发送的控制信号的控制下闭合, 以使数字处理单元 302得 到的一个或多个子带所对应的调制信号输入至对应的功率合成器; 功率合成 器, 用于对射频开关所输出的一个或多个子带所对应的调制信号进行叠加, 并输入至对应的天线 304。
进一歩的, 如图 5所示, 该信号处理通信系统 300还包括: 模拟射频单 元 305, 其中, 模拟射频单元 305用于在天线 304发射合路单元 303中的功 率合成器叠加后的调制信号之前, 对功率合成器输出的叠加后的调制信号进 行处理, 具体的, 如图 6所示, 对于上述模拟射频单元 305, 其包括: 混频 器 3051、 第一放大器 3052、 BPF器件 3053和第二放大器 3054, 其中, 混频 器 3051用于对合路单元 303中的功率合成器输出的叠加后的调制信号上变频 至适合天线发射的频段; 第一放大器 3052用于对上变频后的信号进行放大; BPF器件用于滤除第一放大器放大后的信号中的噪声;第二放大器 3053用于 放大 BPF器件 3052滤波后的信号, 并将信号输入至对应的天线 304。
可选的,在天线数量为 1根的实施场景下的一个实施例中,合路单元 303 中的射频开关可以为如图 7所示的单刀单掷开关, 且单刀单掷开关的数量为 6个, 功率合成器的数量为 1个, 每个单刀单掷开关的输入端与一个数字处 理单元 302连接, 每个单刀单掷开关的输出端与功率合成器连接。 图 7中, X2、 ...... X5、 X6为数字接口产生的数字信号经过数字处理单元 302处理后 的模拟信号, 、 Y2、 ...... Υ5、 Υ6分别对应天线在一个方向的子带。
例如, 经过数字处理单元调制后的信号 和调制后的 χ2需要通过天线 的 ^方向的子带进行传输, 调制后的信号 3和调制后的信号 χ5需要通过天 线的 Υ4方向的子带进行传输,此时射频开关在数字接口发送的控制信号的控 制下将调制后的信号 和调制后的信号 Χ2切换至 Υ5方向对应的子带, 调制 后的信号 和调制后的信号 χ5切换至 Υ4方向对应的子带, 然后功率合成器 将需要通过 Υ5方向对应的子带进行传输的调制后的信号 和调制后的信号 χ2进行合路,也即重新组合后输入至天线的^方向对应的子带,将需要通过
Υ4方向对应的子带进行传输的调制后的信号 和调制后的信号 χ5进行合路, 也即重新组合后输入至天线的 Υ4方向对应的子带。 需要注意的是, 每个经过 调制后的信号只能选择天线的一个方向的子带进行发射, 但不同的调制信号 可以选择天线的同一个方向的子带进行发射。
可选的, 在天线数量为 1根的实施场景下的另一个实施例中, 合路单元 303中的射频开关可以为如图 8所示的单刀多掷开关, 且功率合成器的个数 为 6个, 每个单刀多掷开关的输入端与 1路数字处理单元 302连接, 每个单 刀多掷开关的输出端与 6个功率合成器连接, 其中, Xi、 X2、 ...... X5、 X6为数 字接口 301产生的数字信号经过数字处理单元 302处理后的调制信号, Yi、 Y2、 ...... Υ5、 Υ6分别对应天线在一个方向的子带, 每个功率合成器对应天线
304的一个方向的子带。
例如: 经过数字处理单元 302调制后的信号 Χ^Π Χ2需要通过天线的 Υ5 方向的子带进行传输, 调制后的信号 和调制后的信号 Χ5需要通过天线的 Υ4方向的子带进行传输, 此时射频开关在数字接口的控制信号的控制下, 将 调制后的信号 和调制后的信号 Χ2切换至 Υ5方向对应的子带对应的功率合 成器 5, 调制后的信号 和调制后的信号 Χ5切换至 Υ4方向对应的子带对应 的功率合成器 4, 然后功率合成器 5将需要通过 Υ5方向对应的子带进行传输
的调制后的信号 χ^π调制后的信号 χ2进行合路, 也即重新组合后通过天线 的 Υ5方向对应的子带发射, 功率合成器 4将需要通过 Υ4方向对应的子带进 行传输的模拟信号 和模拟信号 Χ5进行合路, 也即重新组合后通过天线的 Υ4方向对应的子带发射。 需要注意的是, 每个经过调制后的信号只能选择天 线的一个方向进行发射, 但不同的调制后的信号可以选择天线的同一个方向 的子带进行发射。
可选的,在天线数量为 2根的实施场景下的一个实施例中,合路单元 303 中的射频开关可以为如图 9所示的单刀单掷开关, 射频开关的数量为 12个, 由于天线的数量为两根, 所以功率合成器的数量为 2个; 每个单刀单掷开关 的输入端与一个数字处理单元 302连接, 每个单刀单掷开关的输出端与 1个 功率合成器连接。
其中, 表示第 i个子带, 第 j个天线上的信号。 其中 i=l,...,6, j=l,2。
Yid表示第 i个子带, 第 j个天线上的信号。 其中 i=l,... ,6, j=l,2。 经过信号调 制单元 302处理后的信号为 Xu、 X12; X21、 X22; X31、 X32, ......, X61、 X62, 其中 Xu、 X21... ... X61通过第一个天线上的任何一个方向上的子带进行传输;
X12、 x22...... χ62通过第二个天线上的任何一个方向的子带进行传输。 值得注 意的是, 各路通过数字处理单元 302处理后的信号只能分配给其中一个天线 的一个方向的子带进行传输。
具体的, 在系统中有 2根天线的场景中, 将系统的总带宽分为 6个子带, 每个子带对应一路数字处理单元, 因此系统中有 6路数字处理单元, 12个射 频开关, 2个功率合成器, 每个射频开关的输入端与一个数字处理单元连接, 每个射频开关的输出端与其对应的一个功率合成器连接。 假设经过数字接口 分解的数字信号为 Xll、 Xl2、 Xll、 X22、 X32、 X32, 其中 Xll表示需要通过第 一根天线的第 1个方向的子带传输, 2表示需要通过第二根天线的第 1个方 向的子带传输, 22表示需要通过第二根天线的第 2个方向的子带传输、 X32 表示需要通过第二根天线的第 3个方向的子带传输。 也即, 经过数字处理单 元处理后的信号需要通过第一根天线的第一个方向的子带传输的信号为两 个, 需要通过第二根天线的第 1个方向的子带发射的信号为 1个, 需要经过 第二根天线的第三个方向发射的信号为 2个, 需要经过第二根天线的第 2个 方向发射的信号为 1个, 单刀单掷开关在数字接口发送的控制信号的控制下
将数字处理单元调制的信号切换到对应的功率合成器, 也即将 Xu切换至第 一根天线对应的功率合成器, 将 x12、 x22、 2切换至第二根天线对应的功率 合成器; 由于需要通过第一根第一方向的子带发射的信号为 2个, 因此第一 根天线对应的功率合成器将需要第一根天线的第一方向的子带发射的两路信 号进行合路, 并将合路后的信号通过上变频、 滤波和放大处理后送入第一根 天线的第一个方向发射; 同理, 由于需要通过第二根天线的第一方向的子带 发射的信号为 1个, 此时无需第二根天线对应的功率合成器进行合路处理, 直接将信号通过上变频、 滤波和放大处理后送入第二根天线的第一个方向发 射; 由于需要通过第二根天线的第 2个方向的子带发射的信号也为 1个, 此 时无需第二根天线对应的功率合成器进行合路处理,直接将信号通过上变频、 滤波和放大处理后送入第二根天线的第一个方向发射; 由于需要通过第二根 第三方向的子带发射的信号为 2个, 因此第二根天线对应的功率合成器将需 要第二根天线的第三方向的子带发射的两路信号进行合路, 并将合路后的信 号通过上变频、 滤波和放大处理后送入第二根天线的第三个方向发射。
可选的, 在天线数量为 2根的实施场景下的另一个实施例中, 合路单元
303中的射频开关可以如图 10所示的单刀多掷开关, 单刀多掷开关的数量为 12个, 功率合成器的个数为 12个, 也即, 每一根天线的每一个方向对应一 个功率合成器, 每个单刀多掷开关的输入端与 6路信号处理单元连接, 每个 单刀多掷开关的输出端与 12个功率合成器连接。 其中 Xi,」表示第 i个方向的 子带,第 j个天线上的信号。其中 i=l,...,6, j=l,2。 Yi,j表示第 i个方向的子带, 第 j个天线上的信号。 其中 i=l,...,6, j=l,2。 每个功率合成器对应每根天线的 一个方向的子带。
例如, 在系统中有 2根天线的场景中, 将系统的总带宽分为 6个子带, 每个子带对应 1路数字处理单元, 因此系统中有 6路数字处理单元, 12个射 频开关, 12个功率合成器,每个射频开关的输入端与 6路数字处理单元连接, 每个射频开关的输出端与 12个功率合成器连接。假设经过数字接口单元分解 的数字信号为 Xll、 Xl2、 Xii、 X22、 X32、 X32, 其中 Xii表示需要通过第 1根 天线的第 1个方向的子带传输, 2表示需要通过第 2根天线的第 1个方向的 子带传输, 22表示需要通过第 2根天线的第 2个方向的子带传输、 X32表示 需要通过第 2根天线的第 3个方向的子带传输。 也即, 经过数字处理单元处
理后的信号需要通过第 1根天线的第 1个方向的子带传输的信号为两个, 需 要通过第 2根天线的第 1个方向的子带发射的信号为 1个, 需要经过第 2根 天线的第 3个方向发射的信号为 2个, 需要经过第 2根天线的第 2个方向发 射的信号为 1个, 单刀多掷开关在数字接口发送的控制信号的控制下将数字 处理单元调制的信号切换到对应的功率合成器, 也即将 ^刀换至第 1根天 线的第 1个方向的子带对应的功率合成器, 将 2切换至第 2根天线的第 1 个方向的子带对应的功率合成器、 将 22切换至第 2根天线的第 2个方向的 子带对应的功率合成器、 将 2切换至第 2根天线的第 3个方向的子带对应 的功率合成器; 由于需要通过第 1根第 1个方向的子带发射的信号为 2个, 因此第 1根天线的第 1个方向的子带对应的功率合成器将需要第 1根天线的 第 1方向的子带发射的两路信号进行合路, 并将合路后的信号通过上变频、 滤波和放大处理后送入第 1根天线的第 1个方向发射; 同理, 由于需要通过 第 2根天线的第 1方向的子带发射的信号为 1个, 此时无需第 2根天线的第 1个方向对应的功率合成器进行合路处理, 直接将信号通过上变频、 滤波和 放大处理后送入第 2根天线的第 1个方向发射; 由于需要通过第 2根天线的 第 2个方向的子带发射的信号也为 1个, 此时无需第 2根天线的第 2个方向 对应的功率合成器进行合路处理, 直接将信号通过上变频、 滤波和放大处理 后送入第 2根天线的第 1个方向发射; 由于需要通过第 2根第 3方向的子带 发射的信号为 2个, 因此第 2根天线的第 3个方向的子带对应的功率合成器 将需要第 2根天线的第 3个方向的子带发射的两路信号进行合路, 并将合路 后的信号通过上变频、滤波和放大处理后送入第 2根天线的第 3个方向发射。
本发明实施例提供的信号处理通信系统, 数字接口首先将总带宽分解为 多个子带, 然后通过数字处理单元处理后送入合路单元, 通过合路单元中的 射频开关将数字处理单元调制的信号切换至对应的天线, 再通过合路单元中 的功率合成器将天线同一方向的子带中的不同信号进行合路, 并将合路后的 信号输入至天线对应的子带进行发射, 其中, 与天线数量为 1根的相比, 在 天线的数量为 2根的场景中, 数字处理单元的数量仍然为 6个, 也即, 随着 天线数量的增加, 无需增加数字处理单元的数量, 从而可以降低基站成本以 及复杂度。
本发明实施例提供一种基站,包括如上述图 2-图 10对应的实施例所涉及
的信号处理通信系统, 其实现原理和技术效果类似, 基站中的数字接口首先 将总带宽分解为多个子带, 然后通过数字处理单元处理后送入合路单元, 通 过合路单元中的射频开关将数字处理单元调制的信号切换至对应的天线, 再 通过合路单元中的功率合成器将天线同一方向的子带中的不同信号进行合 路, 并将合路后的信号输入至天线对应的子带进行发射, 其中, 与基站的天 线数量为 1根的相比, 在基站的天线的数量为 2根的场景中, 数字处理单元 的数量仍然为 6个, 也即, 随着基站天线数量的增加, 无需增加数字处理单 元的数量, 从而可以降低基站成本以及复杂度。
图 11为本发明另一个实施例提供的信号处理通信系统的结构示意图,系 统带宽包括多个子带, 如图 11所示, 该信号处理通信系统 400包括: 生成模 块 401, 调制模块 402, 处理模块 403和至少一根天线 404; 其中, 生成模块 401, 用于产生多个基带信号, 每个基带信号对应一个子带; 还用于确定每根 天线 404对应的子带, 并向处理模块 403输出控制信号; 调制模块 402, 用 于对生成模块 401所产生的多个基带信号分别进行调制, 每个基带信号调制 后得到一个调制信号; 处理模块 403, 用于根据生成模块 401发送的控制信 号, 将调制模块 402得到的一个或多个子带所对应的调制信号叠加后输入给 对应的天线 404; 天线 404, 用于发射处理模块 403输出的调制信号。
进一歩的, 如图 12所示, 对于上述信号处理通信系统 400中的调制模块 402, 其包括:
调制单元 4021, 用于对生成模块 401所产生的多个基带信号分别进行调 制, 每个所述基带信号调制后得到一个调制信号;
数模转换单元 4022, 用于对调制信号进行数模转换, 得到模拟信号。 进一歩的, 如图 12所示, 对于上述信号处理通信系统 400中的调制模块
402, 还包括:
第一滤波单元 4023, 用于对经过模数转换单元 4022得到的模拟信号进 行滤波, 得到第一滤波信号;
信号放大单元 4024, 用于对第一滤波单元 4023得到的第一滤波信号进 行放大。
进一歩的,对于上述信号处理通信装置 400,还包括:第二滤波单元 407, 用于对处理模块 403输出的一个或多个子带所对应的调制信号叠加后的信号
进行滤波, 并将滤波后的信号输入给对应的天线 404。
本发明实施例提供的一种信号处理通信系统, 首先生成模块产生多个基 带信号, 并且每个基带信号对应一个子带, 还用于确定每根天线对应的子带, 并向处理模块输出控制信号, 然后调制模块, 对生成模块所产生的多个基带 信号分别进行调制, 每个基带信号调制后得到一个调制信号, 进一歩的, 处 理模块根据生成模块发送的控制信号, 将调制模块得到的一个或多个子带所 对应的调制信号叠加后输入给对应的天线, 最后, 天线发射处理模块输出的 调制信号。 其中, 通过处理模块将调制模块得到的一个或多个子带所对应的 调制信号叠加后输入给对应的天线, 并且随着天线数目的增加, 无需增加调 制模块的个数, 从而可以降低基站成本以及复杂度。
本发明另一实施例提供一种基站, 包括如上述图 11-图 12对应的实施例 所涉及的信号处理通信系统, 其实现原理和技术效果类似, 首先基站中的生 成模块产生多个基带信号, 并且每个基带信号对应一个子带, 还用于确定每 根天线对应的子带, 并向基站中的处理模块输出控制信号, 然后调制模块, 对基站中的生成模块所产生的多个基带信号分别进行调制, 每个基带信号调 制后得到一个调制信号, 进一歩的, 处理模块根据生成模块发送的控制信号, 将调制模块得到的一个或多个子带所对应的调制信号叠加后输入给对应的天 线, 最后, 天线发射处理模块输出的调制信号。 其中, 通过基站中的处理模 块将调制模块得到的一个或多个子带所对应的调制信号叠加后输入给对应的 天线, 并且随着基站中天线数目的增加, 无需增加基站中调制模块的个数, 从而可以降低基站成本以及复杂度。
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。
Claims
1、 一种信号处理装置, 其特征在于, 包括: 射频开关和功率合成器; 所述射频开关, 用于在数字接口发送的控制信号的控制下闭合, 以使数 字处理单元与所述功率合成器相连接, 所述数字处理单元得到的一个或多个 子带所对应的调制信号输入至所述功率合成器;
所述功率合成器, 用于对所述射频开关所输出的一个或多个子带所对应 的调制信号进行叠加后输入至对应的天线。
2、 根据权利要求 1所述的装置, 其特征在于, 所述天线的个数为一根, 所述功率合成器的个数为一个;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述功率合成器连接。
3、 根据权利要求 1所述的装置, 其特征在于, 所述天线的个数为一根, 所述功率合成器的个数为多个;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 每个输出端与多个所述功率合成器连 接。
4、 根据权利要求 1所述的装置, 其特征在于, 所述天线的个数为至少两 根, 每根所述天线对应一个所述功率合成器;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的所 述功率合成器连接。
5、 根据权利要求 1所述的装置, 其特征在于, 所述天线的个数为至少两 根, 每根所述天线对应多个所述功率合成器;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的多 个所述功率合成器连接。
6、 一种信号处理通信系统, 其特征在于, 系统带宽上包括多个子带, 所 述系统包括: 数字接口, 至少一个数字处理单元, 合路单元和至少一根天线; 所述数字接口, 用于产生多个基带信号, 每个所述基带信号对应一个所 述子带; 还用于确定每根所述天线对应的子带, 并向所述合路单元输出控制
信号;
所述数字处理单元, 用于对所述数字接口所产生的所述多个基带信号分 别进行调制, 每个所述基带信号调制后得到一个调制信号;
所述合路单元, 用于根据所述数字接口发送的所述控制信号, 将所述数 字处理单元得到的一个或多个子带所对应的调制信号叠加后输入给对应的天 线;
所述天线, 用于发射所述合路单元输出的调制信号。
7、 根据权利要求 6所述的系统, 其特征在于, 所述合路单元包括: 射频开关, 用于在所述数字接口发送的所述控制信号的控制下闭合, 以 使所述数字处理单元与所述功率合成器相连接, 所述数字处理单元得到的一 个或多个子带所对应的调制信号输入至所述功率合成器;
功率合成器, 用于对所述射频开关所输出的一个或多个子带所对应的调 制信号进行叠加后输入至对应的天线。
8、 根据权利要求 7所述的系统, 其特征在于, 所述系统包括一根所述天 线, 所述功率合成器的个数为一个;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述功率合成器连接。
9、 根据权利要求 7所述的系统, 其特征在于, 所述系统包括一根所述天 线, 所述功率合成器的个数为多个;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器 件的输入端与所述数字处理单元连接, 每个输出端与多个所述功率合成器连 接。
10、 根据权利要求 7所述的系统, 其特征在于, 所述系统包括至少两根 所述天线, 每根所述天线对应一个所述功率合成器;
所述射频开关包括: 多个单刀单掷开关器件, 每个所述单刀单掷开关器 件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的所 述功率合成器连接。
11、 根据权利要求 7所述的系统, 其特征在于, 所述系统包括至少两根 所述天线, 每根所述天线对应多个所述功率合成器;
所述射频开关包括: 多个单刀多掷开关器件, 每个所述单刀多掷开关器
件的输入端与所述数字处理单元连接, 输出端与所述信号调制单元对应的多 个所述功率合成器连接。
12、 根据权利要求 6-11任一项所述的系统, 其特征在于, 所述数字处理 单元包括:
现场可编程门阵列 FPGA器件, 用于对所述数字接口所产生的多个基带 信号分别进行调制, 每个所述基带信号调制后得到一个调制信号;
数模转换器件, 用于对所述调制信号进行数模转换, 得到模拟信号。
13、 根据权利要求 12所述的系统, 其特征在于, 还包括:
第一道通滤波器 BPF器件, 用于对经过所述模数转换器件得到的所述模 拟信号进行滤波, 得到第一滤波信号;
信号放大器, 用于对所述第一 BPF器件得到的所述第一滤波信号进行放
14、 根据权利要求 6-13任一项所述的系统, 其特征在于, 还包括: 第二 BPF器件;
所述第二 BPF器件, 用于对所述合路单元输出的一个或多个子带所对应 的调制信号叠加后的信号进行滤波, 并将滤波后的信号输入给对应的所述天 线。
15、 一种基站, 其特征在于, 包括如权利要求 6-14任一项所述的系统。
16、 一种信号处理通信系统, 其特征在于, 系统带宽上包括多个子带, 所述系统包括: 生成模块, 调制模块, 处理模块和至少一根天线;
所述生成模块, 用于产生多个基带信号, 每个所述基带信号对应一个所 述子带; 还用于确定每根所述天线对应的子带, 并向所述处理模块输出控制 信号;
所述调制模块, 用于对所述生成模块所产生的所述多个基带信号分别进 行调制, 每个所述基带信号调制后得到一个调制信号;
所述处理模块, 用于根据所述生成模块发送的所述控制信号, 将所述调 制模块得到的一个或多个子带所对应的调制信号叠加后输入给对应的天线; 所述天线, 用于发射所述处理模块输出的调制信号。
17、 根据权利要求 16所述的系统, 其特征在于, 所述调制模块包括: 调制单元, 用于对所述生成模块所产生的多个基带信号分别进行调制,
每个所述基带信号调制后得到一个调制信号;
数模转换单元, 用于对所述调制信号进行数模转换, 得到模拟信号。
18、 根据权利要求 17所述的系统, 其特征在于, 还包括:
第一滤波单元, 用于对经过所述数模转换单元得到的所述模拟信号进行 滤波, 得到第一滤波信号;
信号放大单元,用于对所述滤波单元得到的所述第一滤波信号进行放大。
19、 根据权利要求 16-18任一项所述的系统, 其特征在于, 还包括: 第 二滤波单元;
所述第二滤波单元, 用于对所述处理模块输出的一个或多个子带所对应 的调制信号叠加后的信号进行滤波, 并将滤波后的信号输入给对应的天线。
20、 一种基站, 其特征在于, 包括如权利要求 16-19任一项所述的系统。
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CN115314068A (zh) * | 2022-08-08 | 2022-11-08 | 深圳市远东华强导航定位有限公司 | 一种gnss和rsmc一体化芯片 |
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