WO2023065950A1 - 一种信号传输装置以及信号传输方法 - Google Patents

一种信号传输装置以及信号传输方法 Download PDF

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Publication number
WO2023065950A1
WO2023065950A1 PCT/CN2022/120490 CN2022120490W WO2023065950A1 WO 2023065950 A1 WO2023065950 A1 WO 2023065950A1 CN 2022120490 W CN2022120490 W CN 2022120490W WO 2023065950 A1 WO2023065950 A1 WO 2023065950A1
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Prior art keywords
unit
signal
radio frequency
correction
electrically connected
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PCT/CN2022/120490
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English (en)
French (fr)
Inventor
官鹭
游燕珍
孙强
邓爱林
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华为技术有限公司
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Priority to EP22882561.8A priority Critical patent/EP4391418A1/en
Priority to KR1020247011291A priority patent/KR20240060629A/ko
Publication of WO2023065950A1 publication Critical patent/WO2023065950A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults

Definitions

  • the embodiments of the present application relate to the communication field, and in particular, to an interaction method and related equipment.
  • the channel state information on Transceiver (CSIT) known at the sender can significantly increase the channel capacity.
  • TDD time division duplex technology
  • the uplink and downlink channels can use the same frequency band when sending messages, the uplink and downlink channels can achieve reciprocity.
  • downlink channel information can be obtained by estimating the uplink channel. Since the uplink and downlink radio frequency channels have different responses, the channel information obtained directly through the uplink channel cannot accurately represent the channel information obtained through the downlink channel.
  • the remote radio unit (remote radio unit, RRU) of the macro base station adopting TDD technology has an internal correction channel, and through the internal correction method, the difference between the uplink and downlink channels is obtained by correcting the loopback of the signal inside the RRU. That is the correction factor.
  • the network device obtains the correction coefficient, it compensates the uplink channel from the baseband, that is, obtains the downlink channel after eliminating the reciprocity error.
  • indoor RRUs generally cannot add internal correction channels, and cannot reuse the solution for internal correction in macro stations.
  • the indoor RRU due to the cost of networking, the indoor RRU generally adopts the method of combining radio frequency/IF/baseband to reduce the consumption of front-end software and hardware resources, and reduce the cost of networking while meeting the coverage requirements.
  • the baseband digital channel is not in a one-to-one relationship with the RRU analog channel, the baseband cannot perform differential compensation for all pRRU RF channels, resulting in poor compensation effect and affecting the communication quality of network equipment.
  • the embodiment of the present application provides a signal transmission device and a signal transmission method.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication of the signal transmission device is improved. quality.
  • the first aspect of the present application provides a signal transmission device, the signal transmission device includes a baseband processing unit, a branching/combining unit, a first channel and a second channel, and the first channel includes a first correction unit and a first radio frequency unit, and the second channel includes a second calibration unit and a second radio frequency unit.
  • the first end of the first calibration unit is electrically connected to the branching/combining unit, and the second end of the first calibration unit is electrically connected to the first radio frequency unit.
  • the baseband processing unit can generate a service signal corresponding to the service according to service requirements, and the signal is called a first service signal.
  • the baseband processing unit transmits the generated first service signal to the splitting/combining unit.
  • the scheduling of the first service signal is implemented through the branching/combining unit.
  • the branching/combining unit receives the first service signal sent by the baseband processing unit
  • the branching and combining unit can copy the first service signal, respectively transmit the first service signal to the first channel and the second channel, and the first correction
  • the unit and the second correction unit will respectively perform corresponding correction processing on the first service signal according to different correction coefficients.
  • the first radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the first correction unit
  • the second radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the second correction unit, and then transmits the radio frequency processed signal.
  • the branching/combining unit included in the signal transmission device can copy the first service signal generated by the baseband processing unit, and the first correction unit belonging to the first channel can correct the first service signal through the first correction coefficient to obtain the second service signal.
  • the second correction unit belonging to the second channel can correct the first service signal by using the second correction coefficient to obtain the third service signal.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • the baseband processing unit may further generate a first verification signal.
  • the branching/combining unit may also select the first channel to send the first radio frequency signal.
  • the first calibration unit can also correct the first calibration signal by the third calibration coefficient to obtain the first calibration signal, and the first radio frequency unit can further perform radio frequency processing on the first calibration signal to obtain the first radio frequency signal.
  • the branching/combining unit can also select the second channel to receive the first radio frequency signal.
  • the second correction unit corrects the first radio frequency signal by using the fourth correction coefficient to obtain the second correction signal.
  • the signal transmission device can be controlled by a combination switch, select a designated RRU (channel) to transmit and receive a calibration signal, the baseband calculates the correction coefficient of the participating RRU, polls multiple times, and completes All RRU correction coefficients are calculated, and a global correction coefficient is synthesized.
  • the correction coefficient calculated by the baseband processing unit can be characterized by time delay, amplitude, and initial phase, and compensated at the intermediate frequency of the RRU.
  • the baseband processing unit may further generate a second verification signal.
  • the branching/combining unit may also select a second channel to send the second radio frequency signal.
  • the branching/combining unit can also select the first channel to receive the second radio frequency signal.
  • the first correction unit corrects the second radio frequency signal by the fifth correction coefficient to obtain a third correction signal.
  • the signal transmission device can be controlled by a combination switch, select a designated RRU (channel) to transmit and receive a calibration signal, the baseband calculates the correction coefficient of the participating RRU, polls multiple times, and completes All RRU correction coefficients are calculated, and a global correction coefficient is synthesized.
  • the correction coefficient calculated by the baseband processing unit can be characterized by time delay, amplitude, and initial phase, and compensated at the intermediate frequency of the RRU.
  • the baseband processing unit may also obtain a first correction coefficient according to the third correction coefficient, the fourth correction coefficient, the fifth correction coefficient and the sixth correction coefficient, where the first correction coefficient is used to compensate the first channel.
  • an acquisition manner of the first correction coefficient is provided, which improves the feasibility of the solution.
  • the baseband processing unit is further configured to obtain a second correction coefficient according to the third correction coefficient, the fourth correction coefficient, the fifth correction coefficient and the sixth correction coefficient, where the second correction coefficient is used to compensate the second channel.
  • a second correction coefficient acquisition manner is provided, which improves the feasibility of the solution.
  • the first end of the first intermediate frequency unit is electrically connected to the baseband processing unit, and the second end of the first intermediate frequency unit is electrically connected to the splitter/combiner unit.
  • the output terminals of the branching/combining unit are respectively electrically connected to the first correction and compensation unit and the second correction and compensation unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit, and the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the first intermediate frequency unit can perform intermediate frequency processing on the first service signal, and send the first service signal after the intermediate frequency processing to the branching/combining unit, and then the branching/combining unit
  • the first service signal is copied and transmitted to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • the baseband processing unit is electrically connected to the branching/combining unit, the first end of the second intermediate frequency unit is electrically connected to the branching/combining unit, and the first end of the second intermediate frequency unit
  • the two terminals are electrically connected with the first calibration unit.
  • the first end of the third intermediate frequency unit is electrically connected to the branching/combining unit, and the second end of the third intermediate frequency unit is electrically connected to the second correction unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit, and the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the circuit/combining unit copies the first service signal and transmits it to the second intermediate frequency unit and the third intermediate frequency unit respectively
  • the second intermediate frequency unit and the third intermediate frequency unit can respectively perform intermediate frequency processing on the first service signal, and send the intermediate frequency processed first service signal to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the second intermediate frequency unit and the third intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or do the same Intermediate frequency processing improves the flexibility of the solution.
  • the baseband processing unit is electrically connected to the splitting/combining unit
  • the first end of the second intermediate frequency unit is electrically connected to the splitting/combining unit
  • the splitting/combining unit They are respectively electrically connected to the first correction and compensation unit and the second correction and compensation unit.
  • the first end of the fourth intermediate frequency unit is electrically connected to the first correction unit
  • the second end of the fourth intermediate frequency unit is electrically connected to the first radio frequency unit
  • the first end of the fifth intermediate frequency unit is electrically connected to the second correction unit
  • the fifth intermediate frequency is electrically connected with the second radio frequency unit.
  • the branching/combining unit copies the first service signal and transmits it to the first correction compensation unit and the second correction unit respectively.
  • compensation unit The fourth intermediate frequency unit and the fifth intermediate frequency unit can respectively perform intermediate frequency processing on the corrected and compensated first correction signal and the second correction signal, and send the intermediate frequency processed signals to the first radio frequency unit and the second radio frequency unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the fourth intermediate frequency unit and the fifth intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or can do the same Intermediate frequency processing improves the flexibility of the solution.
  • the baseband processing unit includes a baseband logical cell, a first baseband processing module, and a second baseband processing module, wherein the baseband logical cell and the first end circuit of the branching/combining unit To connect, the first end of the first baseband processing module and the first end of the second baseband processing module are respectively electrically connected to the second end of the branching/combining unit.
  • the second terminal of the first baseband processing module is electrically connected to the first calibration unit, and the second terminal of the second baseband processing module is electrically connected to the second calibration unit.
  • the signal transmission device may further include a sixth intermediate frequency unit and a seventh intermediate frequency unit, wherein the position of the sixth intermediate frequency unit may be located between the branching/combining unit and the first baseband processing module It may also be located between the first baseband processing module and the first correction unit, or between the first correction unit and the first radio frequency unit, which is not specifically limited here.
  • the seventh intermediate frequency unit can be located between the branching/combining unit and the second baseband processing module, or between the second baseband processing module and the second correction unit, or between the second correction unit and the second correction unit. Between the second radio frequency units, the details are not limited here.
  • the second aspect of the present application provides a signal transmission method, the method is applied in a signal transmission device, the signal transmission device includes a baseband processing unit, a branching/combining unit, a first channel and a second channel, and the first channel includes The first calibration unit and the first radio frequency unit, and the second channel includes the second calibration unit and the second radio frequency unit.
  • the first end of the first calibration unit is electrically connected to the branching/combining unit, and the second end of the first calibration unit is electrically connected to the first radio frequency unit.
  • the baseband processing unit can generate a service signal corresponding to the service according to service requirements, and the signal is called a first service signal.
  • the baseband processing unit transmits the generated first service signal to the splitting/combining unit.
  • the scheduling of the first service signal is implemented through the branching/combining unit.
  • the branching/combining unit receives the first service signal sent by the baseband processing unit
  • the branching and combining unit can copy the first service signal, respectively transmit the first service signal to the first channel and the second channel, and the first correction
  • the unit and the second correction unit will respectively perform corresponding correction processing on the first service signal according to different correction coefficients.
  • the first radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the first correction unit
  • the second radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the second correction unit, and then transmits the radio frequency processed signal.
  • the first service signal generated by the baseband processing unit can be copied through the branching/combining unit included in the signal transmission device, and the first correction unit belonging to the first channel can correct the first service signal through the first correction coefficient to obtain
  • the second correction unit belonging to the second channel can correct the first service signal by using the second correction coefficient to obtain the third service signal.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • the baseband processing unit may further generate the first verification signal.
  • the branching/combining unit may also select the first channel to send the first radio frequency signal.
  • the first calibration unit can also correct the first calibration signal by the third calibration coefficient to obtain the first calibration signal, and the first radio frequency unit can further perform radio frequency processing on the first calibration signal to obtain the first radio frequency signal.
  • the branching/combining unit can also select the second channel to receive the first radio frequency signal.
  • the second correction unit corrects the first radio frequency signal by using the fourth correction coefficient to obtain the second correction signal.
  • the signal transmission device can be controlled by a combination switch, select a designated RRU (channel) to transmit and receive a calibration signal, the baseband calculates the correction coefficient of the participating RRU, polls multiple times, and completes All RRU correction coefficients are calculated, and a global correction coefficient is synthesized.
  • the correction coefficient calculated by the baseband processing unit can be characterized by time delay, amplitude, and initial phase, and compensated at the intermediate frequency of the RRU.
  • the baseband processing unit may further generate a second verification signal.
  • the branching/combining unit may also select a second channel to send the second radio frequency signal.
  • the branching/combining unit can also select the first channel to receive the second radio frequency signal.
  • the first correction unit corrects the second radio frequency signal by the fifth correction coefficient to obtain a third correction signal.
  • the signal transmission device can be controlled by a combination switch, select a designated RRU (channel) to transmit and receive a calibration signal, the baseband calculates the correction coefficient of the participating RRU, polls multiple times, and completes All RRU correction coefficients are calculated, and a global correction coefficient is synthesized.
  • the correction coefficient calculated by the baseband processing unit can be characterized by time delay, amplitude, and initial phase, and compensated at the intermediate frequency of the RRU.
  • the baseband processing unit may also obtain a first correction coefficient according to the third correction coefficient, the fourth correction coefficient, the fifth correction coefficient and the sixth correction coefficient, where the first correction coefficient is used to compensate the first channel.
  • an acquisition manner of the first correction coefficient is provided, which improves the feasibility of the solution.
  • the baseband processing unit is further configured to obtain a second correction coefficient according to the third correction coefficient, the fourth correction coefficient, the fifth correction coefficient and the sixth correction coefficient, where the second correction coefficient is used to compensate the second channel.
  • a second correction coefficient acquisition manner is provided, which improves the feasibility of the solution.
  • the first end of the first intermediate frequency unit is electrically connected to the baseband processing unit, and the second end of the first intermediate frequency unit is electrically connected to the branching/combining unit.
  • the output ends of the branching/combining unit are respectively electrically connected to the first correction and compensation unit and the second correction and compensation unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit, and the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the first intermediate frequency unit can perform intermediate frequency processing on the first service signal, and send the first service signal after the intermediate frequency processing to the branching/combining unit, and then the branching/combining unit
  • the first service signal is copied and transmitted to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • the baseband processing unit is electrically connected to the branching/combining unit, the first end of the second intermediate frequency unit is electrically connected to the branching/combining unit, and the first end of the second intermediate frequency unit
  • the two terminals are electrically connected with the first calibration unit.
  • the first end of the third intermediate frequency unit is electrically connected to the branching/combining unit, and the second end of the third intermediate frequency unit is electrically connected to the second correction unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit, and the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the circuit/combining unit copies the first service signal and transmits it to the second intermediate frequency unit and the third intermediate frequency unit respectively
  • the second intermediate frequency unit and the third intermediate frequency unit can respectively perform intermediate frequency processing on the first service signal, and send the intermediate frequency processed first service signal to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the second intermediate frequency unit and the third intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or do the same Intermediate frequency processing improves the flexibility of the solution.
  • the baseband processing unit is electrically connected to the splitting/combining unit
  • the first end of the second intermediate frequency unit is electrically connected to the splitting/combining unit
  • the splitting/combining unit They are respectively electrically connected to the first correction and compensation unit and the second correction and compensation unit.
  • the first end of the fourth intermediate frequency unit is electrically connected to the first correction unit
  • the second end of the fourth intermediate frequency unit is electrically connected to the first radio frequency unit
  • the first end of the fifth intermediate frequency unit is electrically connected to the second correction unit
  • the fifth intermediate frequency is electrically connected with the second radio frequency unit.
  • the branching/combining unit copies the first service signal and transmits it to the first correction compensation unit and the second correction unit respectively.
  • compensation unit The fourth intermediate frequency unit and the fifth intermediate frequency unit can respectively perform intermediate frequency processing on the corrected and compensated first correction signal and the second correction signal, and send the intermediate frequency processed signals to the first radio frequency unit and the second radio frequency unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the fourth intermediate frequency unit and the fifth intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or can do the same Intermediate frequency processing improves the flexibility of the solution.
  • the baseband processing unit includes a baseband logical cell, a first baseband processing module, and a second baseband processing module, wherein the baseband logical cell and the first end circuit of the branching/combining unit To connect, the first end of the first baseband processing module and the first end of the second baseband processing module are respectively electrically connected to the second end of the branching/combining unit.
  • the second terminal of the first baseband processing module is electrically connected to the first calibration unit, and the second terminal of the second baseband processing module is electrically connected to the second calibration unit.
  • the signal transmission device may further include a sixth intermediate frequency unit and a seventh intermediate frequency unit, wherein the position of the sixth intermediate frequency unit may be located between the branching/combining unit and the first baseband processing module It may also be located between the first baseband processing module and the first correction unit, or between the first correction unit and the first radio frequency unit, which is not specifically limited here.
  • the seventh intermediate frequency unit can be located between the branching/combining unit and the second baseband processing module, or between the second baseband processing module and the second correction unit, or between the second correction unit and the second correction unit. Between the second radio frequency units, the details are not limited here.
  • a third aspect of the present application provides a network system, where the network system includes the signal transmission device described in the first aspect or any possible implementation manner of the first aspect.
  • the branching/combining unit included in the signal transmission device can copy the first service signal generated by the baseband processing unit, and the first correction unit belonging to the first channel can correct the first service signal through the first correction coefficient to obtain the second service signal.
  • the second correction unit belonging to the second channel can correct the first service signal by using the second correction coefficient to obtain the third service signal.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • FIG. 1 is a schematic structural diagram of a signal transmission device provided by the present application.
  • FIG. 2 is a schematic diagram of an application of a signal transmission device provided by the present application
  • FIG. 3 is a schematic diagram of another application of a signal transmission device provided by the present application.
  • FIG. 4 is another schematic structural diagram of a signal transmission device provided by the present application.
  • FIG. 5 is another structural schematic diagram of a signal transmission device provided by the present application.
  • FIG. 6 is another schematic structural diagram of a signal transmission device provided by the present application.
  • FIG. 7 is another schematic structural diagram of a signal transmission device provided in the present application.
  • the channel state information on Transceiver (CSIT) known at the sender can significantly increase the channel capacity.
  • TDD time division duplex technology
  • the uplink and downlink channels can use the same frequency band when sending messages, the uplink and downlink channels can achieve reciprocity.
  • downlink channel information can be obtained by estimating the uplink channel. Since the uplink and downlink radio frequency channels have different responses, the channel information obtained directly through the uplink channel cannot accurately represent the channel information obtained through the downlink channel.
  • the remote radio unit (remote radio unit, RRU) of the macro base station adopting TDD technology has an internal correction channel, and through the internal correction method, the difference between the uplink and downlink channels is obtained by correcting the loopback of the signal inside the RRU. That is the correction factor.
  • the network device obtains the correction coefficient, it compensates the uplink channel from the baseband, that is, obtains the downlink channel after eliminating the reciprocity error.
  • indoor RRUs generally cannot add internal correction channels, and cannot reuse the solution for internal correction in macro stations.
  • the indoor RRU due to the cost of networking, the indoor RRU generally adopts the method of combining radio frequency/IF/baseband to reduce the consumption of front-end software and hardware resources, and reduce the cost of networking while meeting the coverage requirements.
  • the baseband digital channel is not in a one-to-one relationship with the RRU analog channel, the baseband cannot perform differential compensation for all pRRU RF channels, resulting in poor compensation effect and affecting the communication quality of network equipment.
  • the present application provides a signal transmission device, a signal transmission method and a communication system.
  • the signal transmission device can adjust different compensation parameters for different Channels are compensated for differences, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • FIG. 1 is a schematic structural diagram of a signal transmission device provided by an embodiment of the present application.
  • the signal transmission device 10 at least includes: a baseband processing unit 101 , a branching/combining unit 102 , a first channel and a second channel.
  • the first channel includes a first calibration unit 103 and a first radio frequency unit 104
  • the second channel includes a second calibration unit 105 and a second radio frequency unit 106 .
  • the output terminal of the baseband processing unit 101 is electrically connected to the branching/combining unit 102
  • the first terminal of the first correction unit 103 is electrically connected to the branching/combining unit 102
  • the second terminal of the first correction unit 103 terminal is electrically connected to the first radio frequency unit 104.
  • the baseband processing unit 101 is configured to generate a first service signal.
  • the baseband processing unit can generate a service signal corresponding to the service according to service requirements, and the signal is called a first service signal.
  • the baseband processing unit 101 transmits the generated first service signal to the splitting/combining unit 102 . Furthermore, the scheduling of the first service signal is implemented through the branching/combining unit.
  • the branching/combining unit 102 is configured to duplicate the first service signal.
  • the branching/combining unit 102 After the branching/combining unit 102 receives the first service signal sent by the baseband processing unit, the branching/combining unit 102 can copy the first service signal, and transmit the first service signal to the first channel and the second channel respectively, The first correction unit 103 and the second correction unit 105 will respectively perform corresponding correction processing on the first service signal according to different correction coefficients.
  • the first correction unit is configured to correct the first service signal by using the first correction coefficient to obtain the second service signal.
  • the second correction unit is configured to correct the first service signal by using the second correction coefficient to obtain the third service signal.
  • the first channel can correct the first service signal according to the first correction coefficient through the first correction unit 103, and the second channel can Correction processing is performed on the second service signal by the second correction unit 105 according to the second correction coefficient.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • the first radio frequency unit is configured to perform radio frequency processing on the second service signal.
  • the second radio frequency unit is configured to perform radio frequency processing on the third service signal.
  • the first radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the first correction unit
  • the second radio frequency unit performs radio frequency processing on the first service signal corrected and processed by the second correction unit, and then transmits the radio frequency The processed signal.
  • the signal transmission device adopts a combined structure.
  • the service data (the first service signal) is copied in multiple copies in the branching/combining unit, and then delivered to each RRU respectively, and each RRU passes through the correction unit (such as the first The correction unit, the second correction unit), and the radio frequency unit (which may include an antenna) process the baseband data and then transmit it.
  • the service data can be transmitted from the correction unit to the splitter/combiner unit, and merged at the splitter/combiner unit.
  • the combination method may be a combination method such as maximum ratio combination, equal gain combination, or other combination methods, which are not specifically limited here.
  • the combined signal can be sent to the baseband processing unit for processing.
  • the entire combining architecture is deployed on multiple RRUs. Take N RRUs and each RRU has M antennas as an example. At this time, the number of air interface antennas is M*N; but after multiple pRRUs are combined, The logical antennas that can be seen by the baseband are only M antennas, so from the perspective of the baseband, it is actually a cell where M transmits and M receives.
  • the baseband processing unit 101, the branching/combining unit 102, the first correction unit 103, the first radio frequency unit 104, the second The numbers of the second calibration unit 105 and the second radio frequency unit 106 are only for illustration.
  • the signal transmission device may include more baseband processing units, splitting/combining units, correction units and/or radio frequency units than those shown in FIG. 1 , which are not specifically limited here.
  • the branching/combining unit included in the signal transmission device can copy the first service signal generated by the baseband processing unit, and the first correction unit belonging to the first channel can correct the first service signal through the first correction coefficient to obtain the second service signal.
  • the second correction unit belonging to the second channel can correct the first service signal by using the second correction coefficient to obtain the third service signal.
  • the signal transmission device can perform differential compensation on different channels according to different compensation parameters, the compensation effect is good, and the communication quality of the signal transmission device is improved.
  • each channel simultaneously receives signals at the uplink time and transmits signals at the same time at the downlink time, that is, each RRU simultaneously receives signals at the uplink time, and each pRRU simultaneously transmits signals at the downlink time.
  • the first channel sends the correction signal
  • the second channel receives the correction signal, that is, some RRUs transmit the correction signal, and some RRUs receive the correction signal.
  • the specified RRU channel
  • the baseband calculates the correction coefficient of the RRU participating in this time, and polls multiple times to complete All RRU correction coefficients are calculated, and a global correction coefficient is synthesized.
  • the correction coefficient calculated by the baseband is characterized by time delay, amplitude, and initial phase, and the compensation is performed at the intermediate frequency of the RRU.
  • the baseband processing unit may also generate the first verification signal.
  • the branching/combining unit may also select the first channel to send the first radio frequency signal.
  • the first calibration unit can also correct the first calibration signal by the third calibration coefficient to obtain the first calibration signal, and the first radio frequency unit can further perform radio frequency processing on the first calibration signal to obtain the first radio frequency signal.
  • the branching/combining unit can also select the second channel to receive the first radio frequency signal.
  • the second correction unit corrects the first radio frequency signal by using the fourth correction coefficient to obtain the second correction signal.
  • the baseband processing unit 101 At time T0, the baseband processing unit 101 generates a correction reference signal and sends it to the splitting/combining unit 102, and the splitting/combining unit 102 no longer performs downlink signal (downlink only selects the first channel, that is, RRU0), and only transmits the correction reference signal to RRU0. Put RRU0 in the transmitting state, and the calibration reference signal is transmitted to the air interface through the first radio frequency unit (including the antenna) 104 in the RRU.
  • RRU1 (the second channel) is placed in the receiving state, RRU1 receives the correction reference signal transmitted by RRU0, and passes the processed signal to the splitting/combining unit 102 after receiving processing by RRU1.
  • the branching/combining unit 102 only receives the RRU1 signal (uplink only gates the RRU1 signal), and the branching and combining unit transmits the correction reference signal received by the RRU1 to the baseband processing unit 101 .
  • the baseband processing unit 101 performs channel estimation on the calibration reference signal to obtain the equivalent channel in the entire loopback process. Taking the channel 0 transmission of RRU0 and the channel 0 reception of RRU1 as an example, the following formula can be obtained:
  • H 01 represents the estimated channel value obtained after transmission via RRU0, air interface transmission and RRU1 reception
  • H 0 represents the transmit channel response value of channel 0 of RRU0
  • H Air represents the channel response of the air interface between channel 0 of RRU0 and channel 0 of RRU1 Value
  • H 1,UL indicates the receiving channel response value of channel 0 of RRU1.
  • the baseband processing unit may also generate a second verification signal.
  • the branching/combining unit may also select a second channel to send the second radio frequency signal.
  • the branching/combining unit can also select the first channel to receive the second radio frequency signal.
  • the first correction unit corrects the second radio frequency signal by the fifth correction coefficient to obtain a third correction signal.
  • the baseband processing unit 101 At time T1, the baseband processing unit 101 generates a correction reference signal and sends it to the splitting/combining unit, and the splitting/combining unit 102 no longer performs downlink signal processing.
  • Replication downlink only selects the second path, that is, RRU1
  • RRU1 Put the RRU1 in the transmitting state, and the calibration reference signal is transmitted to the air interface through the second radio frequency unit 106 (including the antenna) of the RRU.
  • RRU0 the first channel
  • RRU0 receives the correction reference signal transmitted by RRU1
  • RRU0 transmits the processed signal to the splitting/combining unit.
  • the branching/combining unit only receives the RRU0 signal (only the first channel is selected for uplink, that is, RRU0), and the branching/combining unit 102 transmits the correction reference signal received by RRU0 to the baseband processing unit 101 .
  • the baseband processing unit 101 performs channel estimation on the calibration reference signal to obtain the equivalent channel in the entire loopback process. Taking channel 0 of RRU1 for transmission and channel 0 of RRU0 for reception as an example, the following formula is obtained:
  • H 10 H 1,DL H Air H 0,UL
  • H 10 represents the channel estimation value obtained after sending through channel 0 of RRU1, air interface transmission and channel 0 of RRU0 receiving, H 1,DL represents the transmit channel response value of channel 1 of RRU1, H Air represents the channel 0 and RRU0 of RRU1
  • the air interface channel response value between channel 0, H 0,UL indicates the receiving channel response value of RRU1 channel 0.
  • the air interface channel received by RRU1 channel 0 sent from RRU0 channel 0 is the same as the air interface channel received by RRU0 channel 0 sent from RRU1 channel 0, both are H Air .
  • the equivalent channel estimates obtained by the baseband unit at T0 and T1 respectively can calculate the reciprocity correction coefficient ⁇ between channel 0 of RRU0 and channel 0 of RRU1 as follows:
  • the correction coefficient corresponds to the correction compensation amount of channel 0 of RRU1. Its reference base is channel 0 of RRU0.
  • the signal transmission device may further include other channels except the first channel and the second channel, which are not specifically limited here.
  • the correction coefficient between any channel, any RRU and a certain common reference can be obtained according to the manner described in the foregoing embodiments.
  • the baseband sends the correction coefficient to the RRU, and performs compensation in the intermediate frequency digital domain of the RRU. Since channel estimation is generally performed in the frequency domain, the correction coefficient obtained directly from the baseband is the correction coefficient in the frequency domain. If the pRRU intermediate frequency has no frequency domain compensation capability (eCPRI segmentation scenario, IFU has a frequency domain compensation point), the correction coefficient needs to be converted to the time domain, and the correction coefficient compensation is performed in the time domain.
  • eCPRI segmentation scenario IFU has a frequency domain compensation point
  • the signal transmission device may further include an intermediate frequency unit, and the signal transmission device including the intermediate frequency unit has various structures, and the following embodiments will describe various structures of the signal transmission device in detail.
  • FIG. 4 is a schematic structural diagram of a signal transmission device provided in the present application.
  • the signal transmission device further includes a first intermediate frequency unit 107 .
  • the first end of the first intermediate frequency unit is electrically connected to the baseband processing unit, and the second end of the first intermediate frequency unit is electrically connected to the branching/combining unit.
  • the output ends of the branching/combining unit are respectively electrically connected to the first correction and compensation unit and the second correction and compensation unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit, and the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the first intermediate frequency unit may perform intermediate frequency processing on the first service signal, and send the first service signal after the intermediate frequency processing to the branching/combining unit, Then the branching/combining unit copies the first service signal and transmits it to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • FIG. 5 is a schematic structural diagram of a signal transmission device provided in the present application.
  • the signal transmission device further includes a second intermediate frequency unit 108 and a third intermediate frequency unit 109 .
  • the baseband processing unit is electrically connected to the splitting/combining unit
  • the first end of the second intermediate frequency unit is electrically connected to the splitting/combining unit
  • the second end of the second intermediate frequency unit is electrically connected to the first calibration unit
  • the first end of the third intermediate frequency unit is electrically connected to the branching/combining unit
  • the second end of the third intermediate frequency unit is electrically connected to the second correction unit.
  • the input end of the first radio frequency unit is electrically connected to the output end of the first correction and compensation unit
  • the input end of the second radio frequency unit is electrically connected to the output end of the second correction and compensation unit.
  • the circuit/combining unit copies the first service signal and transmits it to the second intermediate frequency unit and the third intermediate frequency unit respectively
  • the second intermediate frequency unit and the third intermediate frequency unit can respectively perform intermediate frequency processing on the first service signal, and send the intermediate frequency processed first service signal to the first correction and compensation unit and the second correction and compensation unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the second intermediate frequency unit and the third intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or do the same Intermediate frequency processing improves the flexibility of the solution.
  • FIG. 6 is a schematic structural diagram of a signal transmission device provided in the present application.
  • the signal transmission device further includes a fourth intermediate frequency unit 110 and a fifth intermediate frequency unit 111 .
  • the baseband processing unit is electrically connected to the splitting/combining unit
  • the first end of the second intermediate frequency unit is electrically connected to the splitting/combining unit
  • the splitting/combining unit is respectively connected to the first correction compensation unit and the second
  • the two correction compensation units are electrically connected.
  • the first end of the fourth intermediate frequency unit is electrically connected to the first correction unit
  • the second end of the fourth intermediate frequency unit is electrically connected to the first radio frequency unit
  • the first end of the fifth intermediate frequency unit is electrically connected to the second correction unit
  • the fifth intermediate frequency is electrically connected with the second radio frequency unit.
  • the branching/combining unit copies the first service signal and transmits it to the first correction compensation unit and the second correction unit respectively.
  • compensation unit The fourth intermediate frequency unit and the fifth intermediate frequency unit can respectively perform intermediate frequency processing on the corrected and compensated first correction signal and the second correction signal, and send the intermediate frequency processed signals to the first radio frequency unit and the second radio frequency unit respectively.
  • the corrected service signal is then subjected to radio frequency processing by the first radio frequency unit and the second radio frequency unit respectively.
  • An implementation of a signal transmission device including an intermediate frequency unit is provided.
  • the fourth intermediate frequency unit and the fifth intermediate frequency unit belonging to different channels can choose to perform differentiated intermediate frequency processing on the first service signal, or can do the same Intermediate frequency processing improves the flexibility of the solution.
  • FIG. 7 is a schematic structural diagram of a signal transmission device provided in the present application.
  • the signal transmission device further includes a first baseband processing module 112 and a second baseband processing module 113 .
  • the baseband processing unit includes a baseband logic cell 114, a first baseband processing module, and a second baseband processing module, wherein the baseband logic cell 114 is electrically connected to the first end of the branching/combining unit, and the first baseband processing module The first end of the second baseband processing module and the first end of the second baseband processing module are respectively electrically connected to the second end of the branching/combining unit.
  • the second terminal of the first baseband processing module is electrically connected to the first calibration unit, and the second terminal of the second baseband processing module is electrically connected to the second calibration unit.
  • the signal transmission device may further include a sixth intermediate frequency unit and a seventh intermediate frequency unit, wherein the position of the sixth intermediate frequency unit may be located between the branching/combining unit and the first baseband processing module It may also be located between the first baseband processing module and the first correction unit, or between the first correction unit and the first radio frequency unit, which is not specifically limited here.
  • the seventh intermediate frequency unit can be located between the branching/combining unit and the second baseband processing module, or between the second baseband processing module and the second correction unit, or between the second correction unit and the second correction unit. Between the second radio frequency units, the details are not limited here.
  • the present application also provides another signal transmission method and network system.
  • the specific implementation of the signal transmission method and network system can be understood with reference to the signal transmission devices described above in FIG. 1 to FIG. Do repeat.
  • the technical solutions provided by the embodiments of the present application may be fully or partially implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present invention will be generated in whole or in part.
  • the computer may be a general computer, a special computer, a computer network, a network device, a terminal device or other programmable devices.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, or a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD)), or a semiconductor medium.

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Abstract

本申请提供了一种信号传输装置以及信号传输方法，本申请中，信号传输装置中包括的分路/合路单元可以复制基带处理单元生成的第一业务信号，属于第一通道的第一校正单元可以通过第一校正系数校正第一业务信号得到第二业务信号，属于第二通道的第二校正单元可以通过第二校正系数校正第一业务信号得到第三业务信号。在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。

Description

一种信号传输装置以及信号传输方法
本申请要求于2021年10月22日提交中国国家知识产权局、申请号为CN202111234396.2、申请名称为“一种信号传输装置以及信号传输方法”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
本申请实施例涉及通信领域，尤其涉及一种交互方法以及相关设备。
背景技术
传统通信技术中，发端已知信道信息(Channel State Information on Transceiver,CSIT)可以显著提升信道容量。采用时分双工技术(time division duplex，TDD)的通信***中，由于上下行信道发送报文时可以采用相同的频段，因此，上下行信道可以实现互易。这样，便可以通过估计上行信道以获取下行信道信息。由于上下行射频通道具有不同的响应，直接利用上行信道获取的信道信息不能准确代表下行信道所获取的信道信息。
通常，采用TDD技术的宏基站的射频拉远单元(remote radio unit，RRU)中具有一个内校正通道，通过内校正的方式，通过校正信号在RRU内部的环回，获取上下行通道的差异，即校正系数。网络设备获取校正系数之后，从基带对上行信道进行补偿，即得到消除互易性误差之后的下行信道。
然而，室内RRU基于功耗、体积以及成本等方面的考虑，一般无法增加内校正通道，无法复用宏站内校正的方案。另一方面，由于组网成本的原因，室内RRU一般会采用射频/中频/基带合路的方法，降低对前级软硬件资源的消耗，在满足覆盖需求的前提下降低组网成本。在合路场景下，由于基带数字通道与RRU的模拟通道不是一对一的关系，因此，基带无法针对所有pRRU射频通道进行差异性补偿，导致补偿效果差，影响了网络设备的通信质量。
发明内容
本申请实施例提供了一种信号传输装置和信号传输方法，在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
本申请中第一方面提供了一种信号传输装置，该信号传输装置包括基带处理单元，分路/合路单元，第一通道和第二通道，第一通道包括第一校正单元和第一射频单元，第二通道包括第二校正单元和第二射频单元。其中，第一校正单元的第一端与分路/合路单元电连接，第一校正单元的第二端与第一射频单元电连接。基带处理单元可以根据业务需求生成与业务相对应的业务信号，该信号被称为第一业务信号。基带处理单元将生成好的第一业务信号传输至分路/合路单元。进而，通过分路/合路单元实现对于第一业务信号的调度。分路/合路单元接收到基带处理单元发送的第一业务信号后，分路合路单元可以复制第一业务信号，分别将第一业务信号传输至第一通道和第二通道，第一校正单元和第二校正单元将分别根据不同的校正系数对第一业务信号做相应的校正处理。第一射频单元对第一校正 单元校正处理后的第一业务信号做射频处理，第二射频单元对第二校正单元校正处理后的第一业务信号做射频处理，进而传输射频处理后的信号。
本申请中，信号传输装置中包括的分路/合路单元可以复制基带处理单元生成的第一业务信号，属于第一通道的第一校正单元可以通过第一校正系数校正第一业务信号得到第二业务信号，属于第二通道的第二校正单元可以通过第二校正系数校正第一业务信号得到第三业务信号。在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
在第一方面的一种可能的实现方式中，基带处理单元还可以生成第一校验信号。在基带处理单元生成第一校验信号之后，分路/合路单元还可以选择第一通道发送第一射频信号。第一校正单元还可以通过第三校正系数校正第一校验信号得到第一校正信号，第一射频单元还可以对第一校正信号做射频处理后得到第一射频信号。分路/合路单元还可以选择第二通道接收第一射频信号。进而，第二射频单元接收第一射频信号后，第二校正单元通过第四校正系数校正第一射频信号得到第二校正信号。该种可能的实现方式中，信号传输装置可以通过合路开关控制，选择指定的RRU(通道)进行发射和接收校验信号，基带计算该次所参与RRU的校正系数，多次轮询，完成所有RRU校正系数计算，并综合出全局的校正系数。进而，可以将基带处理单元计算的校正系数用时延、幅度、初相方式进行表征，在RRU中频进行补偿。
在第一方面的一种可能的实现方式中，基带处理单元还可以生成第二校验信号。在基带处理单元生成第二校验信号之后，分路/合路单元还可以选择第二通道发送第二射频信号。分路/合路单元还可以选择第一通道接收第二射频信号。进而，第一射频单元接收第二射频信号后，第一校正单元通过第五校正系数校正第二射频信号得到第三校正信号。该种可能的实现方式中，信号传输装置可以通过合路开关控制，选择指定的RRU(通道)进行发射和接收校验信号，基带计算该次所参与RRU的校正系数，多次轮询，完成所有RRU校正系数计算，并综合出全局的校正系数。进而，可以将基带处理单元计算的校正系数用时延、幅度、初相方式进行表征，在RRU中频进行补偿。
在第一方面的一种可能的实现方式中，本申请中，由于TDD***空口信道的互易性，RRU0的通道0发RRU1的通道0收得到的空口信道与RRU1的通道0发RRU0的通道0收得到的空口信道是相同的。这样，基带处理单元还可以根据第三校正系数、第四校正系数、第五校正系数和第六校正系数获取第一校正系数，该第一校正系数用于补偿第一通道。该种可能的实现方式中，提供了一种第一校正系数的获取方式，提升了方案的可实现性。
在第一方面的一种可能的实现方式中，本申请中，由于TDD***空口信道的互易性，RRU0的通道0发RRU1的通道0收得到的空口信道与RRU1的通道0发RRU0的通道0收得到的空口信道是相同的。这样，基带处理单元，还用于根据第三校正系数、第四校正系数、第五校正系数和第六校正系数获取第二校正系数，该第二校正系数用于补偿第二通道。该种可能的实现方式中，提供了一种第二校正系数的获取方式，提升了方案的可实现性。
在第一方面的一种可能的实现方式中，第一中频单元的第一端与基带处理单元电连接，第一中频单元的第二端与分路/合路单元电连接。分路/合路单元的输出端分别与第一校正 补偿单元和第二校正补偿单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。基带处理单元输出第一业务信号后，第一中频单元可以对第一业务信号做中频处理，将中频处理后的第一业务信号发送至分路/合路单元，再由分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，提升了方案的可实现性。
在第一方面的一种可能的实现方式中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，第二中频单元的第二端与第一校正单元电连接。第三中频单元的第一端与分路/合路单元电连接，第三中频单元的第二端与第二校正单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，路/合路单元将第一业务信号复制后分别传输至第二中频单元和第三中频单元，第二中频单元和第三中频单元可以分别对第一业务信号做中频处理，将中频处理后的第一业务信号分别发送至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第二中频单元和第三中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
在第一方面的一种可能的实现方式中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，分路/合路单元分别与第一校正补偿单元和第二校正补偿单元电连接。第四中频单元的第一端与第一校正单元电连接，第四中频单元的第二端与第一射频单元电连接第五中频单元的第一端与第二校正单元电连接，第五中频单元的第二端与第二射频单元电连接。该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。第四中频单元和第五中频单元可以分别对校正补偿后的第一校正信号和第二校正信号做中频处理，将中频处理后的信号分别发送至第一射频单元和第二射频单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第四中频单元和第五中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
在第一方面的一种可能的实现方式中，基带处理单元包括基带逻辑小区、第一基带处理模块和第二基带处理模块，其中，基带逻辑小区与分路/合路单元的第一端电连接，第一基带处理模块的第一端、第二基带处理模块的第一端分别与分路/合路单元的第二端电连接。第一基带处理模块的第二端与第一校正单元电连接，第二基带处理模块的第二端与第二校正单元电连接。该种可能的实现方式中，提供了一种信号传输装置的一种实现方式，提升了方案的可实现性。可选的，该种可能的实现方式中，信号传输装置还可以包括第六中频 单元和第七中频单元，其中，第六中频单元的位置可以位于分路/合路单元与第一基带处理模块之间，也可以位于第一基带处理模块和第一校正单元之间，还可以位于第一校正单元和第一射频单元之间，具体此处不做限定。同理，第七中频单元的位置可以位于分路/合路单元与第二基带处理模块之间，也可以位于第二基带处理模块和第二校正单元之间，还可以位于第二校正单元和第二射频单元之间，具体此处不做限定。
本申请第二方面提供了一种信号传输方法，该方法应用于信号传输装置中，该信号传输装置包括基带处理单元，分路/合路单元，第一通道和第二通道，第一通道包括第一校正单元和第一射频单元，第二通道包括第二校正单元和第二射频单元。其中，第一校正单元的第一端与分路/合路单元电连接，第一校正单元的第二端与第一射频单元电连接。基带处理单元可以根据业务需求生成与业务相对应的业务信号，该信号被称为第一业务信号。基带处理单元将生成好的第一业务信号传输至分路/合路单元。进而，通过分路/合路单元实现对于第一业务信号的调度。分路/合路单元接收到基带处理单元发送的第一业务信号后，分路合路单元可以复制第一业务信号，分别将第一业务信号传输至第一通道和第二通道，第一校正单元和第二校正单元将分别根据不同的校正系数对第一业务信号做相应的校正处理。第一射频单元对第一校正单元校正处理后的第一业务信号做射频处理，第二射频单元对第二校正单元校正处理后的第一业务信号做射频处理，进而传输射频处理后的信号。
本申请中，通过信号传输装置中包括的分路/合路单元可以复制基带处理单元生成的第一业务信号，属于第一通道的第一校正单元可以通过第一校正系数校正第一业务信号得到第二业务信号，属于第二通道的第二校正单元可以通过第二校正系数校正第一业务信号得到第三业务信号。在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
在第二方面的一种可能的实现方式中，基带处理单元还可以生成第一校验信号。在基带处理单元生成第一校验信号之后，分路/合路单元还可以选择第一通道发送第一射频信号。第一校正单元还可以通过第三校正系数校正第一校验信号得到第一校正信号，第一射频单元还可以对第一校正信号做射频处理后得到第一射频信号。分路/合路单元还可以选择第二通道接收第一射频信号。进而，第二射频单元接收第一射频信号后，第二校正单元通过第四校正系数校正第一射频信号得到第二校正信号。该种可能的实现方式中，信号传输装置可以通过合路开关控制，选择指定的RRU(通道)进行发射和接收校验信号，基带计算该次所参与RRU的校正系数，多次轮询，完成所有RRU校正系数计算，并综合出全局的校正系数。进而，可以将基带处理单元计算的校正系数用时延、幅度、初相方式进行表征，在RRU中频进行补偿。
在第二方面的一种可能的实现方式中，基带处理单元还可以生成第二校验信号。在基带处理单元生成第二校验信号之后，分路/合路单元还可以选择第二通道发送第二射频信号。分路/合路单元还可以选择第一通道接收第二射频信号。进而，第一射频单元接收第二射频信号后，第一校正单元通过第五校正系数校正第二射频信号得到第三校正信号。该种可能的实现方式中，信号传输装置可以通过合路开关控制，选择指定的RRU(通道)进行发射和接收校验信号，基带计算该次所参与RRU的校正系数，多次轮询，完成所有RRU校正系 数计算，并综合出全局的校正系数。进而，可以将基带处理单元计算的校正系数用时延、幅度、初相方式进行表征，在RRU中频进行补偿。
在第二方面的一种可能的实现方式中，本申请中，由于TDD***空口信道的互易性，RRU0的通道0发RRU1的通道0收得到的空口信道与RRU1的通道0发RRU0的通道0收得到的空口信道是相同的。这样，基带处理单元还可以根据第三校正系数、第四校正系数、第五校正系数和第六校正系数获取第一校正系数，该第一校正系数用于补偿第一通道。该种可能的实现方式中，提供了一种第一校正系数的获取方式，提升了方案的可实现性。
在第二方面的一种可能的实现方式中，本申请中，由于TDD***空口信道的互易性，RRU0的通道0发RRU1的通道0收得到的空口信道与RRU1的通道0发RRU0的通道0收得到的空口信道是相同的。这样，基带处理单元，还用于根据第三校正系数、第四校正系数、第五校正系数和第六校正系数获取第二校正系数，该第二校正系数用于补偿第二通道。该种可能的实现方式中，提供了一种第二校正系数的获取方式，提升了方案的可实现性。
在第二方面的一种可能的实现方式中，第一中频单元的第一端与基带处理单元电连接，第一中频单元的第二端与分路/合路单元电连接。分路/合路单元的输出端分别与第一校正补偿单元和第二校正补偿单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。基带处理单元输出第一业务信号后，第一中频单元可以对第一业务信号做中频处理，将中频处理后的第一业务信号发送至分路/合路单元，再由分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，提升了方案的可实现性。
在第二方面的一种可能的实现方式中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，第二中频单元的第二端与第一校正单元电连接。第三中频单元的第一端与分路/合路单元电连接，第三中频单元的第二端与第二校正单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，路/合路单元将第一业务信号复制后分别传输至第二中频单元和第三中频单元，第二中频单元和第三中频单元可以分别对第一业务信号做中频处理，将中频处理后的第一业务信号分别发送至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第二中频单元和第三中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
在第二方面的一种可能的实现方式中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，分路/合路单元分别与第一校正补偿单元和第二校正补偿单元电连接。第四中频单元的第一端与第一校正单元电连接，第四中频单元的第二端与第一射频单元电连接第五中频单元的第一端与第二校正单元电连接，第五中频单元 的第二端与第二射频单元电连接。该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。第四中频单元和第五中频单元可以分别对校正补偿后的第一校正信号和第二校正信号做中频处理，将中频处理后的信号分别发送至第一射频单元和第二射频单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第四中频单元和第五中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
在第二方面的一种可能的实现方式中，基带处理单元包括基带逻辑小区、第一基带处理模块和第二基带处理模块，其中，基带逻辑小区与分路/合路单元的第一端电连接，第一基带处理模块的第一端、第二基带处理模块的第一端分别与分路/合路单元的第二端电连接。第一基带处理模块的第二端与第一校正单元电连接，第二基带处理模块的第二端与第二校正单元电连接。该种可能的实现方式中，提供了一种信号传输装置的一种实现方式，提升了方案的可实现性。可选的，该种可能的实现方式中，信号传输装置还可以包括第六中频单元和第七中频单元，其中，第六中频单元的位置可以位于分路/合路单元与第一基带处理模块之间，也可以位于第一基带处理模块和第一校正单元之间，还可以位于第一校正单元和第一射频单元之间，具体此处不做限定。同理，第七中频单元的位置可以位于分路/合路单元与第二基带处理模块之间，也可以位于第二基带处理模块和第二校正单元之间，还可以位于第二校正单元和第二射频单元之间，具体此处不做限定。
本申请第三方面提供了一种网络***，所述网络***包括上述第一方面或第一方面任意一种可能实现方式中所描述的信号传输装置。
从以上技术方案可以看出，本申请实施例具有以下优点：
本申请中，信号传输装置中包括的分路/合路单元可以复制基带处理单元生成的第一业务信号，属于第一通道的第一校正单元可以通过第一校正系数校正第一业务信号得到第二业务信号，属于第二通道的第二校正单元可以通过第二校正系数校正第一业务信号得到第三业务信号。在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
附图说明
图1为本申请提供的一种信号传输装置的一种结构示意图；
图2为本申请提供的一种信号传输装置的一种应用示意图；
图3为本申请提供的一种信号传输装置的另一种应用示意图；
图4为本申请提供的一种信号传输装置的另一种结构示意图；
图5为本申请提供的一种信号传输装置的另一种结构示意图；
图6为本申请提供的一种信号传输装置的另一种结构示意图；
图7为本申请提供的一种信号传输装置的另一种结构示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，下面结合附图，对本申请的实 施例进行描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。本领域普通技术人员可知，随着新应用场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。在本申请中出现的对步骤进行的命名或者编号，并不意味着必须按照命名或者编号所指示的时间/逻辑先后顺序执行方法流程中的步骤，已经命名或者编号的流程步骤可以根据要实现的技术目的变更执行次序，只要能达到相同或者相类似的技术效果即可。
传统通信技术中，发端已知信道信息(Channel State Information on Transceiver,CSIT)可以显著提升信道容量。采用时分双工技术(time division duplex，TDD)的通信***中，由于上下行信道发送报文时可以采用相同的频段，因此，上下行信道可以实现互易。这样，便可以通过估计上行信道以获取下行信道信息。由于上下行射频通道具有不同的响应，直接利用上行信道获取的信道信息不能准确代表下行信道所获取的信道信息。
通常，采用TDD技术的宏基站的射频拉远单元(remote radio unit，RRU)中具有一个内校正通道，通过内校正的方式，通过校正信号在RRU内部的环回，获取上下行通道的差异，即校正系数。网络设备获取校正系数之后，从基带对上行信道进行补偿，即得到消除互易性误差之后的下行信道。
然而，室内RRU基于功耗、体积以及成本等方面的考虑，一般无法增加内校正通道，无法复用宏站内校正的方案。另一方面，由于组网成本的原因，室内RRU一般会采用射频/中频/基带合路的方法，降低对前级软硬件资源的消耗，在满足覆盖需求的前提下降低组网成本。在合路场景下，由于基带数字通道与RRU的模拟通道不是一对一的关系，因此，基带无法针对所有pRRU射频通道进行差异性补偿，导致补偿效果差，影响了网络设备的通信质量。
针对现有的网络设备在通信过程中所存在的上述问题，本申请提供了一种信号传输装置、信号传输方法以及通信***，在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
下面将结合本申请中的附图，对本申请提供的信号传输装置、信号传输方法以及通信***分别进行详细介绍，首先介绍本申请提供的信号传输装置。
图1是本申请实施例提供的一种信号传输装置的一种结构示意图。
本申请提供的信号传输装置10中至少包括：基带处理单元101、分路/合路单元102、第一通道和第二通道。其中，第一通道包括第一校正单元103和第一射频单元104，第二通道包括第二校正单元105和第二射频单元106。
下面详细说明本申请提供的信号传输装置中各个单元的连接关系。
本申请中，基带处理单元101的输出端与分路/合路单元102电连接，第一校正单元103的第一端与分路/合路单元102电连接，第一校正单元103的第二端与第一射频单元104电连接。
下面详细说明本申请提供的信号传输装置中各个单元的作用。
本申请中，基带处理单元101，用于生成第一业务信号。
基带处理单元可以根据业务需求生成与业务相对应的业务信号，该信号被称为第一业务信号。基带处理单元101将生成好的第一业务信号传输至分路/合路单元102。进而，通过分路/合路单元实现对于第一业务信号的调度。
本申请中，分路/合路单元102，用于复制第一业务信号。
分路/合路单元102接收到基带处理单元发送的第一业务信号后，分路/合路单元102可以复制第一业务信号，分别将第一业务信号传输至第一通道和第二通道，第一校正单元103和第二校正单元105将分别根据不同的校正系数对第一业务信号做相应的校正处理。
本申请中，第一校正单元，用于通过第一校正系数校正第一业务信号得到第二业务信号。同理，第二校正单元，用于通过第二校正系数校正第一业务信号得到第三业务信号。
信号传输装置中，第一通道和第二通道接分别收到第一业务信号后，第一通道可以通过第一校正单元103根据第一校正系数对第一业务信号进行校正处理，第二通道可以通过第二校正单元105根据第二校正系数对第二业务信号进行校正处理。这样，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
本申请中，第一射频单元，用于对第二业务信号做射频处理。同理，第二射频单元，用于对第三业务信号做射频处理。
信号传输装置中，第一射频单元对第一校正单元校正处理后的第一业务信号做射频处理，第二射频单元对第二校正单元校正处理后的第一业务信号做射频处理，进而传输射频处理后的信号。
本申请中，假设信号传输装置采用合路架构。在合路架构下的下行时刻，以图1为例，业务数据(第一业务信号)在分路/合路单元复制多份，然后分别传递给各个RRU，各个RRU通过校正单元(如第一校正单元、第二校正单元)、射频单元(可以包含天线)对基带数据处理后进行发射。在合路架构下的上行时刻，同样以图1为例，业务数据可以由校正单元传递给分路/合路单元，并在分路/合路单元进行合并。可选的，合并方法可以是最大比合并、等增益合并等合并方式，合并方法也可以采用其他合并方式，具体此处不做限定。合并之后的信号可以传递给基带处理单元进行处理。这样虽然从物理上，整个合路架构下部署在多个RRU，以N个RRU，每个RRU M个天线为例，此时空口天线数为M*N个；但是多个pRRU合路之后，基带能看到的逻辑天线只有M天线，因此从基带来看实际是一个M发射M接收的小区。
可以理解的是，可选的，本申请中图1所示的信号传输装置中所包括的基带处理单元101、分路/合路单元102、第一校正单元103、第一射频单元104、第二校正单元105和第 二射频单元106的数量仅做示例性说明。实际应用过程中，信号传输装置中可以包括比图1所示更多的基带处理单元、分路/合路单元、校正单元和/或射频单元，具体此处不做限定。
本申请中，信号传输装置中包括的分路/合路单元可以复制基带处理单元生成的第一业务信号，属于第一通道的第一校正单元可以通过第一校正系数校正第一业务信号得到第二业务信号，属于第二通道的第二校正单元可以通过第二校正系数校正第一业务信号得到第三业务信号。在通信过程中，信号传输装置可以根据不同的补偿参数对不同的通道进行差异性补偿，补偿效果好，提升了信号传输装置的通信质量。
本申请中，在得到第一校正单元的的第一校正系数和第二单元的第二校正系数时，具有具体的实现方式，该种可能的实现方式将在下面的示例中进行说明。
本申请中，在传输业务信号的过程中，各个通道在上行时刻同时接受信号，在下行时刻同时发送信号，即上行时刻各个RRU同时接收信号，下行时刻各个pRRU同时发射信号。在对各个通道的校正系数进行校正的过程中，第一通道发送校正信号，第二通道接收校正信号，即部分RRU发射校正信号，部分RRU接收校正信号。
本申请中提供的信号传输装置和信号传输方法中，首先通过合路开关控制，选择指定的RRU(通道)进行发射和接收，基带计算该次所参与RRU的校正系数，多次轮询，完成所有RRU校正系数计算，并综合出全局的校正系数。将基带计算的校正系数用时延、幅度、初相方式进行表征，在RRU中频进行补偿。
在一种可能的实现方式中，可选的，基带处理单元还可以生成第一校验信号。在基带处理单元生成第一校验信号之后，分路/合路单元还可以选择第一通道发送第一射频信号。第一校正单元还可以通过第三校正系数校正第一校验信号得到第一校正信号，第一射频单元还可以对第一校正信号做射频处理后得到第一射频信号。分路/合路单元还可以选择第二通道接收第一射频信号。进而，第二射频单元接收第一射频信号后，第二校正单元通过第四校正系数校正第一射频信号得到第二校正信号。
示例性的，如图2所示的信号传输装置中，在T0时刻，基带处理单元101生成校正参考信号并发送给分路/合路单元102，分路/合路单元102不再进行下行信号的复制(下行只选通第一通道，即RRU0)，只将校正参考信号传递给RRU0。将RRU0置于发射状态，校正参考信号经RRU中的第一射频单元(含天线)104发射至空口。
在T0时刻，将RRU1(第二通道)置于接收状态，RRU1接收RRU0发射的校正参考信号，经过RRU1的接收处理，将处理后的信号传递给分路/合路单元102。此时，分路/合路单元102只接收RRU1信号(上行只选通RRU1信号)，分路合路单元将RRU1接收到的校正参考信号传递给基带处理单元101。
基带处理单元101对校正参考信号进行信道估计可以得到整个环回过程中的等效信道，以RRU0的通道0发射，RRU1的通道0接收为例可以得到如下公式：
H 01＝H 0,DLH AirH 1,UL
其中，H 01表示经由RRU0发送、空口传输以及RRU1接收后得到的信道估计值，H 0表示RRU0的通道0的发射通道响应值，H Air表示RRU0通道0与RRU1通道0之间的空口信道响 应值，H 1,UL表示RRU1通道0的接收通道响应值。
在一种可能的实现方式中，可选的，基带处理单元还可以生成第二校验信号。在基带处理单元生成第二校验信号之后，分路/合路单元还可以选择第二通道发送第二射频信号。分路/合路单元还可以选择第一通道接收第二射频信号。进而，第一射频单元接收第二射频信号后，第一校正单元通过第五校正系数校正第二射频信号得到第三校正信号。
示例性的，如图3所示的信号传输装置中，在T1时刻，基带处理单元101生成校正参考信号并发送给分路/合路单元，分路/合路单元102不再进行下行信号的复制(下行只选通第二通路，即RRU1)，只将校正参考信号传递给RRU1。将RRU1置于发射状态，校正参考信号经RRU的第二射频单元106(含天线)发射至空口。
在T1时刻，将RRU0(第一通道)置于接收状态，RRU0接收RRU1发射的校正参考信号，经过RRU0的接收处理，将处理后的信号传递给分路/合路单元。此时，分路/合路单元只接收RRU0信号(上行只选通第一通道，即RRU0)，分路/合路单元102将RRU0接收到的校正参考信号传递给基带处理单元101。
基带处理单101元对校正参考信号进行信道估计可以得到整个环回过程中的等效信道，以RRU1的通道0发射，RRU0的通道0接收为例得到如下公式：
H 10＝H 1,DLH AirH 0,UL
其中，H 10表示经由RRU1的通道0发送、空口传输以及RRU0的通道0接收后得到的信道估计值，H 1,DL表示RRU1的通道1的发射通道响应值，H Air表示RRU1通道0与RRU0通道0之间的空口信道响应值，H 0,UL表示RRU1通道0的接收通道响应值。
上述图2、图3所述的实施例说明了得到H 01和H 10的具体过程，下面将详细讲述根据H 01和H 10得到第一校正系数和第二校正系数的具体过程。
本申请中，由于TDD***空口信道的互易性，RRU0的通道0发RRU1的通道0收得到的空口信道与RRU1的通道0发RRU0的通道0收得到的空口信道是相同的，都是H Air。
基带单元对T0、T1时刻分别得到的等效信道估计可以计算出RRU0的通道0与RRU1的通道0之间的互易性校正系数β公式如下：
Figure PCTCN2022120490-appb-000001
该校正系数对应RRU1通道0的校正补偿量。其参考基准为RRU0的通道0。
本申请中，可选的，在实际应用中，信号传输装置中还可以包括除第一通道、第二通道之外的其他通道，具体此处不做限定。按照上述实施例中阐述的方式可以得出任意通道、任意RRU与某一个公共基准之间的校正系数。
本申请中，基带将校正系数发送给RRU，在RRU中频数字域进行补偿。由于信道估计一般在频域进行，基带直接得出的校正系数为频域的校正系数。如果pRRU中频没有频域补偿能力(eCPRI切分场景，IFU存在频域补偿点)，则需要将校正系数转换到时域，在时域进行校正系数补偿。
本申请中，信号传输装置中还可以包括中频单元，包括中频单元的信号传输装置具有多种结构，下面的实施例将详细说明该信号传输装置的多种结构。
结构一：
图4为本申请提供的一种信号传输装置的一种结构示意图。
请参阅图4，信号传输装置还包括第一中频单元107。
本申请中，第一中频单元的第一端与基带处理单元电连接，第一中频单元的第二端与分路/合路单元电连接。分路/合路单元的输出端分别与第一校正补偿单元和第二校正补偿单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。
该种可能的实现方式中，基带处理单元输出第一业务信号后，第一中频单元可以对第一业务信号做中频处理，将中频处理后的第一业务信号发送至分路/合路单元，再由分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，提升了方案的可实现性。
结构二：
图5为本申请提供的一种信号传输装置的一种结构示意图。
请参阅图5，信号传输装置还包括第二中频单元108和第三中频单元109。
本申请中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，第二中频单元的第二端与第一校正单元电连接。第三中频单元的第一端与分路/合路单元电连接，第三中频单元的第二端与第二校正单元电连接。第一射频单元的输入端与第一校正补偿单元的输出端电连接，第二射频单元的输入端与第二校正补偿单元的输出端电连接。
该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，路/合路单元将第一业务信号复制后分别传输至第二中频单元和第三中频单元，第二中频单元和第三中频单元可以分别对第一业务信号做中频处理，将中频处理后的第一业务信号分别发送至第一校正补偿单元和第二校正补偿单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第二中频单元和第三中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
结构三：
图6为本申请提供的一种信号传输装置的一种结构示意图。
请参阅图6，信号传输装置还包括第四中频单元110和第五中频单元111。
本申请中，基带处理单元与分路/合路单元电连接，第二中频单元的第一端与分路/合路单元电连接，分路/合路单元分别与第一校正补偿单元和第二校正补偿单元电连接。第四中频单元的第一端与第一校正单元电连接，第四中频单元的第二端与第一射频单元电连接第五中频单元的第一端与第二校正单元电连接，第五中频单元的第二端与第二射频单元电连接。
该种可能的实现方式中，基带处理单元向分路/合路单元输出第一业务信号后，分路/合路单元将第一业务信号复制后分别传输至第一校正补偿单元和第二校正补偿单元。第四 中频单元和第五中频单元可以分别对校正补偿后的第一校正信号和第二校正信号做中频处理，将中频处理后的信号分别发送至第一射频单元和第二射频单元。再通过第一射频单元和第二射频单元分别将校正后的业务信号做射频处理。提供了一种包括中频单元的信号传输装置的一种实现方式，分属于不同通道的第四中频单元和第五中频单元可以选择对第一业务信号做差异化的中频处理，也可以做相同的中频处理，提升了方案的灵活性。
图7为本申请提供的一种信号传输装置的一种结构示意图。
请参阅图7，信号传输装置还包括第一基带处理模块112和第二基带处理模块113。
本申请中，基带处理单元包括基带逻辑小区114、第一基带处理模块和第二基带处理模块，其中，基带逻辑小区114与分路/合路单元的第一端电连接，第一基带处理模块的第一端、第二基带处理模块的第一端分别与分路/合路单元的第二端电连接。第一基带处理模块的第二端与第一校正单元电连接，第二基带处理模块的第二端与第二校正单元电连接。该种可能的实现方式中，提供了一种信号传输装置的一种实现方式，提升了方案的可实现性。
可选的，该种可能的实现方式中，信号传输装置还可以包括第六中频单元和第七中频单元，其中，第六中频单元的位置可以位于分路/合路单元与第一基带处理模块之间，也可以位于第一基带处理模块和第一校正单元之间，还可以位于第一校正单元和第一射频单元之间，具体此处不做限定。同理，第七中频单元的位置可以位于分路/合路单元与第二基带处理模块之间，也可以位于第二基带处理模块和第二校正单元之间，还可以位于第二校正单元和第二射频单元之间，具体此处不做限定。
本申请还提供了另外一种信号传输方法以及网络***，同理，该信号传输方法以及网络***的具体实现方式可以参照上述图1至图6所述的信号传输装置进行理解，具体此处不做赘述。
本申请实施例提供的技术方案可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、终端设备或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机可以存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，数字视频光盘(digital video disc，DVD))、或者半导体介质等。
以上对本申请实施例所提供的信号传输装置以及信号传输方法进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮 助理解本申请的方法及其核心思想。同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (21)

  1. 一种信号传输装置，其特征在于，所述信号传输装置包括：基带处理单元，分路/合路单元，第一通道和第二通道，所述第一通道包括第一校正单元和第一射频单元，所述第二通道包括第二校正单元和第二射频单元；
    所述第一校正单元的第一端与所述分路/合路单元电连接，所述第一校正单元的第二端与所述第一射频单元电连接；
    所述基带处理单元，用于生成第一业务信号；
    所述分路/合路单元，用于复制所述第一业务信号；
    所述第一校正单元，用于通过第一校正系数校正所述第一业务信号得到第二业务信号；
    所述第二校正单元，用于通过第二校正系数校正所述第一业务信号得到第三业务信号；
    所述第一射频单元，用于对所述第二业务信号做射频处理；
    所述第二射频单元，用于对所述第三业务信号做射频处理。
  2. 根据权利要求1所述的信号传输装置，其特征在于，
    所述基带处理单元，还用于生成第一校验信号；
    所述第一校正单元，还用于通过第三校正系数校正所述第一校验信号得到第一校正信号；
    所述第一射频单元，还用于对所述第一校正信号做射频处理后得到第一射频信号；
    所述第二射频单元，还用于接收所述第一射频信号；
    所述第二校正单元，还用于通过第四校正系数校正所述第一射频信号得到第二校正信号；
    所述分路/合路单元，还用于选择所述第一通道发送所述第一射频信号，选择所述第二通道接收所述第一射频信号。
  3. 根据权利要求2所述的信号传输装置，其特征在于，
    所述基带处理单元，还用于生成第二校验信号；
    所述第二校正单元，还用于通过第五校正系数校正所述第二校验信号得到第三校正信号；
    所述第二射频单元，还用于对所述第三校正信号做射频处理后得到第二射频信号；
    所述第一射频单元，还用于接收所述第二射频信号；
    所述第一校正单元，还用于通过第六校正系数校正所述第二射频信号得到第四校正信号；
    所述分路/合路单元，还用于选择所述第二通道发送所述第二射频信号，选择所第一通道接收所述第二射频信号。
  4. 根据权利要求3所述的信号传输装置，其特征在于，
    所述基带处理单元，还用于根据所述第三校正系数、第四校正系数、第五校正系数和第六校正系数获取所述第一校正系数，所述第一校正系数用于补偿所述第一通道。
  5. 根据权利要求3或4所述的信号传输装置，其特征在于，
    所述基带处理单元，还用于根据所述第三校正系数、第四校正系数、第五校正系数和 第六校正系数获取所述第二校正系数，所述第二校正系数用于补偿所述第二通道。
  6. 根据权利要求1至5中任意一项所述的信号传输装置，其特征在于，所述信号传输装置还包括第一中频单元；
    所述第一中频单元的第一端与所述基带处理单元电连接，所述第一中频单元的第二端与所述分路/合路单元电连接。
  7. 根据权利要求1至5中任意一项所述的信号传输装置，其特征在于，所述信号传输装置还包括第二中频单元和第三中频单元；
    所述第二中频单元的第一端与所述分路/合路单元电连接，所述第二中频单元的第二端与所述第一校正单元电连接；
    所述第三中频单元的第一端与所述分路/合路单元电连接，所述第三中频单元的第二端与所述第二校正单元电连接。
  8. 根据权利要求1至5中任意一项所述的信号传输装置，其特征在于，所述信号传输装置还包括第四中频单元和第五中频单元；
    所述第四中频单元的第一端与所述第一校正单元电连接，所述第四中频单元的第二端与所述第一射频单元电连接；
    所述第五中频单元的第一端与所述第二校正单元电连接，所述第五中频单元的第二端与所述第二射频单元电连接。
  9. 根据权利要求1至5所述的信号传输装置，其特征在于，所述基带处理单元包括基带逻辑小区、第一基带处理模块和第二基带处理模块，所述信号传输装置还包括第六中频单元和第七中频单元；
    所述基带逻辑小区的输出端与所述分路/合路单元的第一端电连接；
    所述分路/合路单元的第二端与基带处理模块的第一端和第二基带处理模块的第一端电连接；
    所述第一校正单元的第一端与所述分路/合路单元电连接，所述第一校正单元的第二端与所述第一基带处理模块电连接；
    所述第二校正单元的第一端与所述分路/合路单元电连接，所述第二校正单元的第二端与所述第二基带处理模块电连接。
  10. 一种信号传输方法，其特征在于，所述信号传输方法应用于信号传输装置，所述信号传输装置包括：基带处理单元，分路/合路单元，第一通道和第二通道，所述第一通道包括第一校正单元和第一射频单元，所述第二通道包括第二校正单元和第二射频单元；
    所述第一校正单元的第一端与所述分路/合路单元电连接，所述第一校正单元的第二端与所述第一射频单元电连接；
    通过所述基带处理单元生成第一业务信号；
    通过所述分路/合路单元复制所述第一业务信号；
    通过所述第一校正单元根据第一校正系数校正所述第一业务信号得到第二业务信号；
    通过所述第二校正单元根据第二校正系数校正所述第一业务信号得到第三业务信号；
    通过所述第一射频单元对所述第二业务信号做射频处理；
    通过所述第二射频单元对所述第三业务信号做射频处理。
  11. 根据权利要求10所述的信号传输方法，其特征在于，
    还通过所述基带处理单元生成第一校验信号；
    还通过所述第一校正单元根据第三校正系数校正所述第一校验信号得到第一校正信号；
    还通过所述第一射频单元对所述第一校正信号做射频处理后得到第一射频信号；
    还通过所述第二射频单元接收所述第一射频信号；
    还通过所述第二校正单元根据第四校正系数校正所述第一射频信号得到第二校正信号；
    还通过所述分路/合路单元选择所述第一通道发送所述第一射频信号，选择所述第二通道接收所述第一射频信号。
  12. 根据权利要求11所述的信号传输方法，其特征在于，
    还通过所述基带处理单元生成第二校验信号；
    还通过所述第二校正单元根据第五校正系数校正所述第二校验信号得到第三校正信号；
    还通过所述第二射频单元对所述第三校正信号做射频处理后得到第二射频信号；
    还通过所述第一射频单元接收所述第二射频信号；
    还通过所述第一校正单元根据第六校正系数校正所述第二射频信号得到第四校正信号；
    还通过所述分路/合路单元选择所述第二通道发送所述第二射频信号，选择所第一通道接收所述第二射频信号。
  13. 根据权利要求12所述的信号传输方法，其特征在于，
    还通过所述基带处理单元根据所述第三校正系数、第四校正系数、第五校正系数和第六校正系数获取所述第一校正系数，所述第一校正系数用于补偿所述第一通道。
  14. 根据权利要求12或13所述的信号传输方法，其特征在于，
    还通过所述基带处理单元根据所述第三校正系数、第四校正系数、第五校正系数和第六校正系数获取所述第二校正系数，所述第二校正系数用于补偿所述第二通道。
  15. 根据权利要求10至14中任意一项所述的信号传输方法，其特征在于，所述信号传输装置还包括第一中频单元；
    所述第一中频单元的第一端与所述基带处理单元电连接，所述第一中频单元的第二端与所述分路/合路单元电连接。
  16. 根据权利要求10至14中任意一项所述的信号传输方法，其特征在于，所述信号传输装置还包括第二中频单元和第三中频单元；
    所述第二中频单元的第一端与所述分路/合路单元电连接，所述第二中频单元的第二端与所述第一校正单元电连接；
    所述第三中频单元的第一端与所述分路/合路单元电连接，所述第三中频单元的第二端与所述第二校正单元电连接。
  17. 根据权利要求10至14中任意一项所述的信号传输方法，其特征在于，所述信号传输装置还包括第四中频单元和第五中频单元；
    所述第四中频单元的第一端与所述第一校正单元电连接，所述第四中频单元的第二端与所述第一射频单元电连接；
    所述第五中频单元的第一端与所述第二校正单元电连接，所述第五中频单元的第二端与所述第二射频单元电连接。
  18. 根据权利要求10至15中任意一项所述的信号传输方法，其特征在于，所述基带处理单元包括基带逻辑小区、第一基带处理模块和第二基带处理模块，所述信号传输装置还包括第六中频单元和第七中频单元；
    所述基带逻辑小区的输出端与所述分路/合路单元的第一端电连接；
    所述分路/合路单元的第二端与基带处理模块的第一端和第二基带处理模块的第一端电连接；
    所述第六中频单元的第一端与所述分路/合路单元电连接，所述第六中频单元的第二端与所述第一基带处理模块电连接；
    所述第七中频单元的第一端与所述分路/合路单元电连接，所述第七中频单元的第二端与所述第二基带处理模块电连接。
  19. 一种通信***，其特征在于，所述通信***中包括如权利要求1至9中任意一项所述的信号传输装置。
  20. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储有指令，当所述指令在计算机上运行时，使得计算机执行权利要求10至18任一项所述的方法。
  21. 一种计算机程序产品，其特征在于，包括指令，当所述指令在计算机上运行时，使得计算机执行权利要求10至18任一项所述的方法。
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CN107395533A (zh) * 2017-06-20 2017-11-24 上海华为技术有限公司 一种通道校正方法以及校正装置
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