WO2021035705A1 - 天线校正装置和天线校正方法 - Google Patents
天线校正装置和天线校正方法 Download PDFInfo
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- WO2021035705A1 WO2021035705A1 PCT/CN2019/103763 CN2019103763W WO2021035705A1 WO 2021035705 A1 WO2021035705 A1 WO 2021035705A1 CN 2019103763 W CN2019103763 W CN 2019103763W WO 2021035705 A1 WO2021035705 A1 WO 2021035705A1
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- compensation parameter
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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
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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
- H04B17/14—Monitoring; Testing of transmitters for calibration of the whole transmission and reception path, e.g. self-test loop-back
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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
- H04B1/38—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- This application relates to the communication field, and in particular to an antenna correction device and antenna correction method in the communication field.
- multi-antenna technology has become one of the key technologies for wireless transmission. Because when the signal is transmitted in the radio frequency channel, the amplitude and phase of the signal will change due to the nonlinear characteristics of the channel itself, so the antenna correction function is designed.
- the purpose of multi-channel antenna calibration is to obtain the amplitude and phase characteristics of the radio frequency channel, and to compensate for it, to ensure the consistency of the amplitude and phase between the transceiver channels and the reciprocity of the amplitude and phase.
- the traditional antenna correction coupling port is located between the antenna feed filter and the antenna, that is, the antenna feed unit, and the antenna correction circuit is located in the radio frequency unit where the radio frequency link is located.
- the antenna correction circuit needs to be connected to the antenna feed unit to receive or Acquire the signal, and then connect to the RF unit to process the signal.
- the link of the antenna correction circuit needs to span the above-mentioned antenna feed unit and RF unit, and one or more cables (or connectors) and combining units need to be added, which increases the number of components. , The assembly process is complicated and the realization cost is high.
- the present application provides an antenna correction device and an antenna correction method, which simplifies the assembly process of the antenna correction device, and helps reduce the implementation cost of the antenna correction device.
- an antenna correction device including: l antennas, where l is an integer greater than or equal to 2; l antenna-feed filters, the first end of the l antenna-feed filters and the l One antenna connection; one radio frequency link, which is connected to the second end of the one antenna feeder filter; a correction circuit, which is connected to the second end of the one antenna feeder filter, and is used to: pass through the one The position between each antenna feeder filter and the radio frequency link connected to the second end of each antenna feeder filter sends or receives the first correction signal, and according to the first correction signal The correction signal is used to correct each of the l antennas.
- the position of the antenna correction coupling port is set between the antenna feed filter and the radio frequency link, so that the correction circuit can directly send or receive the correction signal at the radio frequency unit, thereby performing antenna correction without
- the addition of components such as cables, connectors, and combining units simplifies the assembly process of the antenna correction device and helps reduce the implementation cost of the antenna correction device.
- the above-mentioned antenna may also be called an antenna element, an antenna-fed antenna or other names
- the above-mentioned antenna channel may also be called a channel or other names
- the above-mentioned correction circuit may also be called an antenna correction circuit or other names. This is not limited.
- the antenna calibration coupling port is the connection port of the calibration circuit, and can also be called the antenna calibration interface or other names.
- the position of the antenna correction coupling port of each antenna is between the antenna feed filter and the radio frequency link, so that the correction circuit can send or receive the first correction signal through the antenna correction coupling port.
- the correction circuit can send or receive the first correction signal through the position between the antenna feed filter and the radio frequency link connected to the second end of the antenna feed filter.
- the first correction signal refers to the correction signal generated during the operation of the existing network.
- the correction circuit is specifically configured to: determine the first compensation parameter of each antenna; and according to the first compensation parameter and the first correction signal , Determine the second compensation parameter of each antenna; and perform correction on each antenna according to the second compensation parameter.
- the antenna correction coupling port is located between the antenna feeder filter and the radio frequency link, the signal sent or received by the correction circuit may not pass through the antenna feeder filter.
- errors in the link between the antenna and the antenna feeder filter It can include, for example, PCB trace error, connector error, antenna feed filter error, antenna feed network error, antenna element error, etc.
- the purpose of preparing a meter is to compensate for the inconsistency of various hardware links.
- the signal measurement is performed and the compensation parameters obtained are stored in the memory (for example, the memory) for subsequent correction and use.
- the compensation parameter in the above-mentioned equipment metering process is called the first compensation parameter, but it should be understood that the first compensation parameter can also be referred to as the equipment metering compensation parameter or other names.
- the embodiment of this application does not describe this. limited.
- the above-mentioned first compensation parameters have been stored.
- the above-mentioned first compensation parameter is stored in the memory in the form of a table (for example, an equipment table), but the embodiment of the present application does not limit this.
- the correction circuit can obtain the first compensation parameter of each antenna from the memory, and combine the first compensation parameter with the first correction signal obtained from the antenna correction coupling port to determine the first compensation parameter of each antenna. Two compensation parameters, and then use the second compensation parameter to perform antenna calibration.
- the above-mentioned second compensation parameter is a compensation parameter during the actual operation of the existing network, and the second compensation parameter may also be referred to as a correction compensation parameter or other names, which is not limited in the embodiment of the present application.
- the i-th antenna among the l antennas is used as a reference antenna, and the first compensation parameter ⁇ j of the j-th antenna among the l antennas Satisfy:
- the radio frequency link corresponding to the jth antenna includes a receiving link and a transmitting link, the receiving link is connected to the receiving module, the transmitting link is connected to the transmitting module, and the jth antenna is connected to the test Antenna connection, a j is the second correction signal received by the receiving module and sent by the test antenna, b j is the second correction signal received by the receiving module and sent by the correction circuit, and c j is the The second correction signal received by the test antenna and sent by the transmitting module, d j is the second correction signal received by the correction circuit and sent by the transmitting module, i is an integer, and 1 ⁇ i ⁇ l, j is Take an integer from 1 to 1.
- the above-mentioned second correction signal refers to the correction signal generated in the process of making a watch.
- a watch antenna which is also called a test antenna in this article.
- each antenna of the l antennas can be scanned by adjusting the position of the device as a watch antenna each time.
- the i-th antenna is the reference antenna.
- the first correction signal includes e j and f j , and e j is received by the correction circuit and sent by the transmitting module corresponding to the jth antenna.
- F j is the correction signal received by the receiving module corresponding to the jth antenna and sent by the correction circuit;
- the second compensation parameter of the jth antenna includes the transmission corresponding to the jth antenna The second compensation parameter of the link The second compensation parameter of the receiving link corresponding to the jth antenna Taking the i-th antenna among the l antennas as the reference antenna, the second compensation parameter of the transmission link corresponding to the j-th antenna among the l antennas Satisfy: The second compensation parameter of the receiving link corresponding to the jth antenna among the l antennas Satisfy:
- the above-mentioned first correction signal may include the correction signal e j corresponding to the transmitting link and the correction signal f j corresponding to the receiving link.
- the second compensation parameter may include the compensation parameter corresponding to the transmission link Compensation parameters corresponding to the receiving link The second compensation parameter may be obtained by calculation based on the above-mentioned first compensation parameter and the first correction signal.
- the correction circuit is configured to: obtain the first correction signals e j and f j corresponding to each antenna;
- the first compensation parameter ⁇ j , the first correction signal e j corresponding to each antenna, and the second compensation parameter of the transmission link corresponding to each antenna is determined
- Set the second compensation parameter of the transmit link corresponding to each antenna Compensate to the transmit link corresponding to each antenna, and set the second compensation parameter of the receive link corresponding to each antenna Compensation to the receiving link corresponding to each antenna.
- the l antennas correspond to the first frequency band
- the antenna correction device further includes: k antennas corresponding to the second frequency band, and k is greater than or equal to 2 Integer, k antenna feed filters, the first ends of the k antenna feed filters are connected to the k antennas; k radio frequency links are connected to the second ends of the k antenna feed filters;
- the correction circuit is connected to the second end of the k antenna-feed filters, and is configured to: pass each antenna-feed filter of the k antenna-feed filters and communicate with the k antenna-feed filters. Send or receive a third correction signal at a position between the radio frequency links connected to the second end of each antenna feeder filter, and correct each of the k antennas according to the third correction signal .
- the position of the antenna correction coupling port of each of the k antennas is between the antenna feed filter and the radio frequency link, so that the correction circuit can transmit through the antenna correction coupling port Or receive the third correction signal.
- the correction circuit 140 may transmit or receive the third correction signal through a position between the antenna feed filter and the radio frequency link connected to the second end of the antenna feed filter.
- the third correction signal refers to the correction signal generated during the operation of the existing network.
- the correction circuit is specifically configured to: determine the first compensation parameter of each of the k antennas; Determine the second compensation parameter of each of the k antennas according to the first compensation parameter of each antenna and the third correction signal; and determine the second compensation parameter of each of the k antennas according to the second compensation parameter of each of the k antennas.
- Each of the k antennas performs correction.
- the second frequency band Similar to the first frequency band corresponding to l antennas, the second frequency band also needs to be equipped with a table to obtain the first compensation parameter, and write the first compensation parameter into the memory for subsequent calibration and use.
- the equipment table and calibration process of k antennas is similar to the equipment table and calibration process in the first frequency band, and will not be repeated here.
- the antenna correction device of the embodiment of the present application can simplify the assembly process of the antenna correction device and help reduce the implementation cost of the antenna correction device, realize the antenna correction of multiple frequencies and multiple antenna channels, and further reduce the development cost.
- the reference antenna used to determine the first compensation parameter of each of the k antennas is the qth antenna of the k antennas, q is an integer, and 1 ⁇ q ⁇ k.
- the reference antenna needs to be selected.
- the reference antenna of each frequency band is different.
- the first frequency band needs to be selected from its corresponding l antennas, and the second frequency band needs to be selected in its corresponding antennas.
- the calibration circuit can obtain the second compensation parameter corresponding to one antenna, and then calibrate one antenna, or after obtaining all the antennas corresponding to the second compensation parameter. After the second compensation parameter is set, all antennas are uniformly calibrated, which is not limited in the embodiment of the present application.
- an antenna correction method is provided, which is applied to an antenna correction device including l antennas, the l antennas are connected to the first end of l antenna feed filters, and the The second end is connected to the l radio frequency links and the correction circuit, and the method includes: acquiring a first correction signal, where the first correction signal is that the correction circuit passes through each of the l antenna feed filters. The position between the feed filter and the radio frequency link connected to the second end of each antenna feed filter is transmitted or received; the first compensation parameter of each antenna of the l antennas is determined; according to the The first compensation parameter and the first correction signal determine the second compensation parameter of each antenna; and the correction is performed on each antenna according to the second compensation parameter.
- the i-th antenna among the l antennas is used as the reference antenna, and the first compensation parameter ⁇ j of the j-th antenna among the l antennas Satisfy:
- the radio frequency link corresponding to the jth antenna includes a receiving link and a transmitting link, the receiving link is connected to the receiving module, the transmitting link is connected to the transmitting module, and the jth antenna is connected to the test Antenna connection, a j is the second correction signal received by the receiving module and sent by the test antenna, b j is the second correction signal received by the receiving module and sent by the correction circuit, and c j is the The second correction signal received by the test antenna and sent by the transmitting module, d j is the second correction signal received by the correction circuit and sent by the transmitting module, i is an integer, and 1 ⁇ i ⁇ l, j is Take an integer from 1 to 1.
- the first correction signal includes e j and f j , and e j is received by the correction circuit and sent by the transmitting module corresponding to the jth antenna.
- F j is the correction signal received by the receiving module corresponding to the jth antenna and sent by the correction circuit;
- the second compensation parameter of the jth antenna includes the transmission corresponding to the jth antenna The second compensation parameter of the link The second compensation parameter of the receiving link corresponding to the jth antenna Taking the i-th antenna among the l antennas as the reference antenna, the second compensation parameter of the transmission link corresponding to the j-th antenna among the l antennas Satisfy: The second compensation parameter of the receiving link corresponding to the jth antenna among the l antennas Satisfy:
- the acquiring the first correction signal includes: acquiring the first correction signal e j and f j corresponding to each antenna;
- the first compensation parameter and the first correction signal to determine the second compensation parameter of each antenna includes: according to the first compensation parameter ⁇ j of each antenna, the first compensation parameter corresponding to each antenna Correction signal e j to determine the second compensation parameter of the transmission link corresponding to each antenna Determine the second compensation parameter of the receiving link corresponding to each antenna according to the first compensation parameter ⁇ j of each antenna and the first correction signal f j corresponding to each antenna
- the correcting each antenna according to the second compensation parameter includes: setting the second compensation parameter of the transmission link corresponding to each antenna Compensate to the transmit link corresponding to each antenna, and set the second compensation parameter of the receive link corresponding to each antenna Compensation to the receiving link corresponding to each antenna.
- the 1 antenna corresponds to the first frequency band
- the antenna correction device further includes k antennas corresponding to the second frequency band, and k is an integer greater than or equal to 2.
- the k antennas are connected to the first ends of the k antenna feed filters, and the second ends of the k antenna feed filters are connected to the k radio frequency links and the correction circuit; the method further includes: Obtain the third correction signal, the third correction signal is that the correction circuit passes through each of the k antenna filters and interacts with each of the k antenna filters.
- the second end of the antenna feed filter is connected to the position between the radio frequency link to send or receive; determine the first compensation parameter of each of the k antennas; according to each of the k antennas Determining the second compensation parameter of each of the k antennas; according to the second compensation parameter of each of the k antennas, the Each of the k antennas performs correction.
- the reference antenna used to determine the first compensation parameter of each of the k antennas is the qth antenna of the k antennas, q is an integer, and 1 ⁇ q ⁇ k.
- a base station including the antenna correction device in the foregoing first aspect or any one of the possible implementation manners of the first aspect.
- Fig. 1 shows a schematic structural diagram of an antenna correction device according to an embodiment of the present application.
- Fig. 2 shows a schematic structural diagram of an antenna correction device in the process of making a table of equipment according to an embodiment of the present application.
- FIG. 3 shows a schematic structural diagram of another antenna calibration device in the process of making a table of equipment according to an embodiment of the present application.
- FIG. 4 shows a schematic flowchart of an antenna calibration method according to an embodiment of the present application.
- the first, second, third, and various numerical numbers are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different signals, distinguish different parameters, and so on.
- "including” and “having” and any variations thereof are intended to cover non-exclusive inclusions, for example, other steps or units inherent in a process, method, system, product, or device that include a series of steps or units.
- LTE long term evolution
- FDD frequency division duplex
- LTE time division duplex LTE time division duplex
- TDD time division duplex
- UMTS universal mobile telecommunication system
- WiMAX worldwide interoperability for microwave access
- 5G future 5th generation
- NR New radio
- FIG. 1 is a schematic block diagram of an antenna calibration device 100 according to an embodiment of the present application.
- the antenna correction device 100 includes: one antenna 110, one antenna feed filter 120, one radio frequency link 130, and a correction circuit 140, where l is an integer greater than or equal to 2.
- l antennas 110 are antenna 1, antenna 2,..., antenna 1, l antenna 110 and l antenna feed filter 120 (respectively antenna feed filter 1, antenna feed filter 2, ..., antenna feeder filter 1, not marked in the figure) and 1 radio frequency link 130 (respectively radio frequency link 1, radio frequency link 2, ..., radio frequency link 1, not marked in the figure), thereby Form l antenna channels.
- one radio frequency link 130 may include one radio frequency transmitting link 131 and one radio frequency receiving link 132, which respectively form one antenna transmitting channel and one antenna receiving channel with the above-mentioned antenna and antenna feed filter.
- one antenna 110 is connected to the first end of one antenna feeder filter 120, and one radio frequency link 130 is connected to the second end of one antenna feeder filter 120.
- the second ends of the 1 antenna feeder filters are also connected to the correction circuit 140 respectively.
- antenna 1 is connected to the first end of antenna feeder filter 1
- the second end of antenna feeder filter 1 is connected to radio frequency link 1
- the second end of antenna feeder filter 1 is also connected to a correction circuit 140. connection.
- the second ends of the l antenna filters are all connected to the correction circuit 140.
- the above-mentioned antenna may also be called an antenna element, an antenna-fed antenna or other names
- the above-mentioned antenna channel may also be called a channel or other names
- the above-mentioned correction circuit may also be called an antenna correction circuit or other names. This is not limited.
- the antenna calibration coupling port is the connection port of the calibration circuit, and can also be called the antenna calibration interface or other names.
- the position of the antenna correction coupling port of each antenna is between the antenna feed filter and the radio frequency link.
- the correction circuit 140 can transmit or transmit through the antenna correction coupling port. Receive the first correction signal.
- the correction circuit 140 may transmit or receive the first correction signal through a position between the antenna feed filter and the radio frequency link connected to the second end of the antenna feed filter.
- the first correction signal refers to the correction signal generated during the operation of the existing network.
- the position of the antenna correction coupling port is set between the antenna feed filter and the radio frequency link, so that the correction circuit can directly send or receive the correction signal at the radio frequency unit, thereby performing antenna correction without
- the addition of components such as cables, connectors, and combining units simplifies the assembly process of the antenna correction device and helps reduce the implementation cost of the antenna correction device.
- the above-mentioned correction circuit may be specifically a printed circuit board (printed circuit board, PCB), or may be composed of other components, or may be integrated into a chip system. It should be understood that the above-mentioned correction circuit may include an input circuit or interface for sending a signal, and an output circuit or interface for receiving a signal. Further, the above-mentioned correction circuit may further include a memory and a processor, and the memory may store the signal obtained by the correction circuit and a corresponding processing program, and the processor may perform correction processing according to the processing program stored in the memory. Optionally, there may be one or more processors, and there may be one or more memories. Optionally, the memory and the processor may be integrated together, or may be provided separately, which is not limited in the embodiment of the present application.
- the above-mentioned antenna correction device may be any multi-antenna device capable of realizing the above-mentioned functions, which is not limited in the embodiment of the present application.
- the above-mentioned antenna correction device is a base station, for example, an evolved NodeB (evolved NodeB, eNB or eNodeB), a home base station (for example, home evolved NodeB, or home NodeB, HNB) in an LTE system , Or gNB in the new radio system (new radio, NR) system, etc.
- the above-mentioned correction circuit is specifically configured to determine the first compensation parameter of each antenna of the l antennas, and determine the first compensation parameter of each antenna according to the first compensation parameter and the first correction signal. A second compensation parameter, and, according to the second compensation parameter, the correction is performed on each antenna.
- the antenna correction coupling port is located between the antenna feeder filter and the radio frequency link, the signal sent or received by the correction circuit may not pass through the antenna feeder filter.
- errors in the link between the antenna and the antenna feeder filter It can include, for example, PCB trace error, connector error, antenna feed filter error, antenna feed network error, antenna element error, etc.
- the purpose of preparing a meter is to compensate for the inconsistency of various hardware links.
- the signal measurement is performed and the compensation parameters obtained are stored in the memory (for example, the memory) for subsequent correction and use.
- the compensation parameter in the above-mentioned equipment metering process is called the first compensation parameter, but it should be understood that the first compensation parameter can also be referred to as the equipment metering compensation parameter or other names.
- the embodiment of this application does not describe this. limited.
- the above-mentioned first compensation parameters have been stored.
- the above-mentioned first compensation parameter is stored in the memory in the form of a table (for example, an equipment table), but the embodiment of the present application does not limit this.
- the calibration circuit can obtain the first compensation parameter of each antenna from the memory, and combine the first compensation parameter with the first compensation parameter obtained from the antenna calibration coupling port.
- a calibration signal determines the second compensation parameter of each antenna, and then uses the second compensation parameter to perform antenna calibration.
- the above-mentioned second compensation parameter is a compensation parameter during the actual operation of the existing network, and the second compensation parameter may also be referred to as a correction compensation parameter or other names, which is not limited in the embodiment of the present application.
- the first compensation parameter ⁇ j of the j-th antenna among the l antennas satisfies:
- the radio frequency link corresponding to the jth antenna includes a receiving link and a transmitting link, the receiving link is connected to the receiving module, the transmitting link is connected to the transmitting module, and the jth antenna is connected to the test antenna, a j is the second correction signal received by the receiving module and sent by the test antenna, b j is the second correction signal received by the receiving module and sent by the correction circuit, and c j is the second correction signal received by the test antenna and sent by the transmitting module.
- D j is the second correction signal received by the correction circuit and sent by the transmitting module, i is an integer, and 1 ⁇ i ⁇ l, j is an integer from 1 to 1.
- the above-mentioned second correction signal refers to the correction signal generated in the process of making a watch.
- a watch antenna which is also called a test antenna in this article.
- each antenna of the l antennas can be scanned by adjusting the position of the device as a watch antenna each time.
- the i-th antenna is the reference antenna.
- h j the jth antenna
- C j the system transfer function of the common part of the jth antenna (which can include the PCB trace error after the transceiver link is combined, and the connection Antenna error, antenna filter error, antenna network error, antenna element error, etc.)
- R j the transfer function of the j-th antenna receiving link
- T j the transfer function of the j-th antenna transmitting link
- D j the transfer function of the link between the jth antenna and the correction circuit.
- FIG. 2 shows the antenna calibration device in the process of equipping and making a watch.
- antenna 1 as the reference antenna (that is, the first antenna) as an example, first scan the equipment as antenna 10 to antenna 1, and perform the following steps:
- the above description only takes antenna 1 as the reference antenna as an example.
- the reference antenna may be any one of the l antennas.
- Figure 2 only takes one piece of equipment as a watch antenna as an example, and introduces the process of making a watch on each of the l antennas in turn.
- the number of equipped watch antennas can be More, for example, the number of antennas equipped for watch making is 1, so that all or part of the antennas in l antennas can be equipped for watch making in parallel at the same time, which helps to improve the efficiency of making watch.
- the first correction signal e j and F j comprises, e j correction signal correction circuit for receiving the j-th transmission antenna corresponding to the transmission module, j for the j-th F
- the second compensation parameter of the jth antenna includes the second compensation parameter of the transmission link corresponding to the jth antenna
- the second compensation parameter of the receiving link corresponding to the jth antenna Taking the i-th antenna among the l antennas as the reference antenna, the second compensation parameter of the transmission link corresponding to the j-th antenna among the l antennas Satisfy:
- the above-mentioned first correction signal may include the correction signal e j corresponding to the transmitting link and the correction signal f j corresponding to the receiving link.
- the second compensation parameter may include the compensation parameter corresponding to the transmission link Compensation parameters corresponding to the receiving link The second compensation parameter may be obtained by calculation based on the above-mentioned first compensation parameter and the first correction signal.
- the correction circuit is used to: obtain the first correction signals e j and f j corresponding to each antenna; according to the first compensation parameter ⁇ j of each antenna, the corresponding antenna The first correction signal e j , and determine the second compensation parameter of the transmit link corresponding to each antenna According to the first compensation parameter ⁇ j of each antenna and the first correction signal f j corresponding to each antenna, the second compensation parameter of the receiving link corresponding to each antenna is determined The second compensation parameter of the transmit link corresponding to each antenna Compensate to the transmit link corresponding to each antenna, and the second compensation parameter of the receive link corresponding to each antenna Compensate to the receiving link corresponding to each antenna.
- the above-mentioned correction of the receiving link and the correction of the transmitting link are two independent correction processes, which can be performed in a first-to-last order or can be processed in parallel, which is not limited in the embodiment of the present application.
- the error of equipment metering (also called the accuracy of equipment metering) will affect the value of ⁇ j , which only affects condition one and has nothing to do with condition two.
- the correction algorithm will affect the value of ⁇ j , and will affect condition one and condition two.
- the error of the equipment metering only affects, but has no effect on the uplink and downlink reciprocity. Since the shaping accuracy of the open loop beam has a weaker impact on the multi-antenna system, the antenna calibration device of the embodiment of the present application The accuracy requirements for the equipment table are not high, and it is relatively easy to meet the requirements.
- the frequency bands of the l antennas are the same, and all correspond to the first frequency band.
- the antenna correction device also includes other frequency bands.
- the antenna correction device is multi-frequency and multi-antenna channels.
- the l antennas correspond to the first frequency band
- the antenna correction device further includes: k antennas corresponding to the second frequency band, k is an integer greater than or equal to 2, and k antenna feed filters.
- the first ends of the k antenna feed filters are connected to the k antennas; the k radio frequency links are connected to the second ends of the k antenna feed filters; the correction circuit is connected to the first ends of the k antenna feed filters.
- Two-terminal connection for: passing through each of the k antenna-feed filters and the radio frequency link connected to the second end of each of the k antenna-feed filters
- a third correction signal is sent or received between the positions, and each of the k antennas is corrected according to the third correction signal.
- the above-mentioned antenna correction device also includes k antennas corresponding to the second frequency band. Similar to the first frequency band, the k antennas are connected with k antenna feed filters and k radio frequency links, thereby forming k antenna channels. Further, the k radio frequency links may include k radio frequency transmission links and k radio frequency reception links, which form k antenna transmission channels and k antenna reception channels with the above k antennas and k antenna feed filters, respectively.
- the k antennas are connected to the first ends of the k antenna feed filters, and the k radio frequency links are connected to the second ends of the k antenna feed filters. The second ends of the k antenna-fed filters are also connected to the correction circuit respectively.
- the position of the antenna correction coupling port of each of the k antennas is between the antenna feed filter and the radio frequency link, so that the correction circuit can transmit through the antenna correction coupling port Or receive the third correction signal.
- the correction circuit 140 may transmit or receive the third correction signal through a position between the antenna feed filter and the radio frequency link connected to the second end of the antenna feed filter.
- the third correction signal refers to the correction signal generated during the operation of the existing network.
- the correction circuit is specifically configured to: determine the first compensation parameter of each of the k antennas; according to the first compensation parameter of each of the k antennas and the third The correction signal determines the second compensation parameter of each of the k antennas; and corrects each of the k antennas according to the second compensation parameter of each of the k antennas.
- the second frequency band Similar to the first frequency band corresponding to l antennas, the second frequency band also needs to be equipped with a table to obtain the first compensation parameter, and write the first compensation parameter into the memory for subsequent calibration and use.
- the equipment table and calibration process of k antennas is similar to the equipment table and calibration process in the first frequency band, and will not be repeated here.
- the antenna correction device of the embodiment of the present application can simplify the assembly process of the antenna correction device and help reduce the implementation cost of the antenna correction device, realize the antenna correction of multi-frequency and multi-antenna channels, and further reduce the development cost.
- the reference antenna used to determine the first compensation parameter of each of the k antennas is the qth antenna among the k antennas, q is an integer, and 1 ⁇ q ⁇ k .
- the reference antenna needs to be selected.
- the reference antenna of each frequency band is different.
- the first frequency band needs to be selected from its corresponding l antennas, and the second frequency band needs to be selected in its corresponding antennas.
- Fig. 3 shows a schematic structural diagram of another antenna correction device in the process of equipping and making a watch.
- the antenna correction device shown in FIG. 3 includes N frequency bands, and N is an integer greater than or equal to 2.
- the number of antennas included in each of the N frequency bands may be the same or different, which is not limited in the embodiment of the present application.
- frequency band 1 corresponds to the first frequency band and includes l antennas
- frequency band 2 corresponds to the second frequency band and includes k antennas.
- the frequency band N includes m antennas, and m is an integer greater than or equal to 2.
- the reference antenna of frequency band 1 is antenna 1.
- formulas (20) and (24), namely the second compensation parameter can be obtained.
- the reference antenna of frequency band 2 may be antenna 1+1
- the reference antenna of frequency band N may be antenna 1+k+1, which is the same as frequency band 1.
- the second compensation parameter corresponding to each frequency band can be obtained, and the second compensation parameter corresponding to each frequency band can be obtained.
- the second compensation parameter corresponding to each frequency band is compensated to the corresponding receiving link and transmitting link, thereby completing the antenna correction.
- FIG. 3 only shows one equipment as a watch antenna, and each antenna of the l+k+m antennas can be scanned by adjusting the position of the equipment as a watch antenna each time.
- one or more equipment watch antennas may also be provided for each frequency band mentioned above, so that the equipment watch making process of each frequency band is performed in parallel, which helps to improve the efficiency of equipment making watch.
- the calibration circuit can obtain the second compensation parameter corresponding to one antenna, and then calibrate one antenna, or after obtaining all the antennas corresponding to the second compensation parameter. After the second compensation parameter is set, all antennas are uniformly calibrated, which is not limited in the embodiment of the present application.
- the antenna calibration device according to the embodiment of the present application is described in detail above with reference to FIGS. 1 to 3, and the antenna calibration method according to the embodiment of the present application will be described in detail below in conjunction with FIG. 4.
- FIG. 4 is a schematic flowchart of the antenna calibration method 400 proposed in this application.
- the method 400 is applied to an antenna correction device including one antenna, the one antenna is connected to the first end of one antenna feeder filter, and the second end of the one antenna feeder filter is connected to one radio frequency link and correction circuit. connection.
- the method 400 includes:
- S420 Determine a first compensation parameter of each antenna of the l antennas.
- S430 Determine a second compensation parameter of each antenna according to the first compensation parameter and the first correction signal
- the position of the antenna correction coupling port is set between the antenna feed filter and the radio frequency link, so that the correction circuit can directly send or receive the correction signal at the radio frequency unit, thereby performing antenna correction without
- the addition of components such as cables, connectors, and combining units simplifies the assembly process of the antenna correction device and helps reduce the implementation cost of the antenna correction device.
- the foregoing method 400 may be applied to the antenna calibration apparatus shown in FIG. 1 to FIG. 3, but the embodiment of the present application is not limited thereto.
- the specific calibration process please refer to the relevant description of the above antenna calibration device, which will not be repeated here.
- the radio frequency link corresponding to the jth antenna includes a receiving link and a transmitting link
- the receiving link is connected to the receiving module
- the transmitting link is connected to the transmitting module
- the jth antenna is connected to the test antenna
- a j is the second correction signal received by the receiving module and sent by the test antenna
- b j is the second correction signal received by the receiving module and sent by the correction circuit
- c j is the second correction signal received by the test antenna and sent by the transmitting module.
- D j is the second correction signal received by the correction circuit and sent by the transmitting module
- i is an integer
- j is an integer from 1 to 1.
- the first correction signal e j and F j comprises, e j correction signal correction circuit for receiving the j-th transmission antenna corresponding to the transmission module, j for the j-th F
- the second compensation parameter of the jth antenna includes the second compensation parameter of the transmission link corresponding to the jth antenna
- the second compensation parameter of the receiving link corresponding to the jth antenna Taking the i-th antenna among the l antennas as the reference antenna, the second compensation parameter of the transmission link corresponding to the j-th antenna among the l antennas Satisfy:
- the acquiring the first correction signal includes: acquiring the first correction signal e j and f j corresponding to each antenna; and determining according to the first compensation parameter and the first correction signal
- the second compensation parameter of each antenna includes: according to the first compensation parameter ⁇ j of each antenna and the first correction signal e j corresponding to each antenna, determining the second compensation parameter of the transmission link corresponding to each antenna 2.
- Compensation parameter ⁇ Tj determine the second compensation parameter of the receiving link corresponding to each antenna according to the first compensation parameter ⁇ j of each antenna and the first correction signal f j corresponding to each antenna
- the correcting each antenna according to the second compensation parameter includes: the second compensation parameter of the transmission link corresponding to each antenna Compensate to the transmit link corresponding to each antenna, and the second compensation parameter of the receive link corresponding to each antenna Compensate to the receiving link corresponding to each antenna.
- the l antennas correspond to the first frequency band
- the antenna correction device further includes k antennas corresponding to the second frequency band, where k is an integer greater than or equal to 2, and the k antennas and k antenna feeders The first end of the filter is connected, and the second ends of the k antenna-fed filters are connected to the k radio frequency links and the correction circuit; the method further includes: obtaining the third correction signal, the third correction signal being the The correction circuit transmits through the position between each of the k antenna-feed filters and the radio frequency link connected to the second end of each of the k antenna-feed filters.
- the reference antenna used to determine the first compensation parameter of each of the k antennas is the qth antenna among the k antennas, q is an integer, and 1 ⁇ q ⁇ k .
- At least one refers to one or more, and “multiple” refers to two or more.
- And/or describes the association relationship of the associated object, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
- the character “/” generally indicates that the associated objects before and after are in an “or” relationship.
- "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or a plurality of items (a).
- At least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c or a-b-c, where a, b, and c can be single or multiple.
- the disclosed system, device, and method may be implemented in other ways.
- the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .
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Abstract
Description
Claims (14)
- 一种天线校正装置,其特征在于,包括:l个天线,l为大于或等于2的整数;l个天馈滤波器,所述l个天馈滤波器的第一端与所述l个天线连接;l个射频链路,与所述l个天馈滤波器的第二端连接;校正电路,与所述l个天馈滤波器的第二端连接,用于:通过所述l个天馈滤波器中的每个天馈滤波器和与所述每个天馈滤波器的第二端连接的射频链路之间的位置发送或接收第一校正信号,以及根据所述第一校正信号,对所述l个天线的每个天线进行校正。
- 根据权利要求1所述的装置,其特征在于,所述校正电路具体用于:确定所述每个天线的第一补偿参数;根据所述第一补偿参数和所述第一校正信号,确定所述每个天线的第二补偿参数;根据所述第二补偿参数,对所述每个天线进行校正。
- 根据权利要求1至5中任一项所述的装置,其特征在于,所述l个天线对应第一频段,所述装置还包括:k个天线,对应第二频段,k为大于或等于2的整数,k个天馈滤波器,所述k个天馈滤波器的第一端与所述k个天线连接;k个射频链路,与所述k个天馈滤波器的第二端连接;所述校正电路与所述k个天馈滤波器的第二端连接,用于:通过所述k个天馈滤波器中的每个天馈滤波器和与所述k个天馈滤波器中的每个天馈滤波器的第二端连接的射频链路之间的位置发送或接收第三校正信号,以及根据所述第三校正信号,对所述k个天线中的每个天线进行校正。
- 根据权利要求6所述的装置,其特征在于,所述校正电路具体用于:确定所述k个天线中的每个天线的第一补偿参数;根据所述k个天线中的每个天线的第一补偿参数和所述第三校正信号,确定所述k个天线中的每个天线的第二补偿参数;根据所述k个天线中的每个天线的第二补偿参数,对所述k个天线中的每个天线进行校正。
- 根据权利要求7所述的装置,其特征在于,用于确定所述k个天线中的每个天线的第一补偿参数的参考天线为所述k个天线中的第q个天线,q为整数,且1≤q≤k。
- 一种天线校正方法,其特征在于,应用于包括l个天线的天线校正装置,所述l个天线与l个天馈滤波器的第一端连接,所述l个天馈滤波器的第二端与l个射频链路和校正电路连接,所述方法包括:获取第一校正信号,所述第一校正信号是所述校正电路通过所述l个天馈滤波器中的每个天馈滤波器和与所述每个天馈滤波器的第二端连接的射频链路之间的位置发送或接收的;确定所述l个天线的每个天线的第一补偿参数;根据所述第一补偿参数和所述第一校正信号,确定所述每个天线的第二补偿参数;根据所述第二补偿参数,对所述每个天线进行校正。
- 根据权利要求11所述的方法,其特征在于,所述获取第一校正信号,包括:获取所述每个天线对应的所述第一校正信号e j和f j;所述根据所述第一补偿参数和所述第一校正信号,确定所述每个天线的第二补偿参数,包括:所述根据所述第二补偿参数,对所述每个天线进行校正,包括:
- 根据权利要求9至12中任一项所述的方法,其特征在于,所述l个天线对应第一频段,所述天线校正装置还包括对应第二频段的k个天线,k为大于或等于2的整数,所述k个天线与k个天馈滤波器的第一端连接,所述k个天馈滤波器的第二端与k个射频链路和所述校正电路连接;所述方法还包括:获取所述第三校正信号,所述第三校正信号是所述校正电路通过所述k个天馈滤波器中的每个天馈滤波器和与所述k个天馈滤波器中的每个天馈滤波器的第二端连接的射频链路之间的位置发送或接收的;确定所述k个天线中的每个天线的第一补偿参数;根据所述k个天线中的每个天线的第一补偿参数和所述第三校正信号,确定所述k个天线中的每个天线的第二补偿参数;根据所述k个天线中的每个天线的第二补偿参数,对所述k个天线中的每个天线进行 校正。
- 根据权利要求13所述的方法,其特征在于,用于确定所述k个天线中的每个天线的第一补偿参数的参考天线为所述k个天线中的第q个天线,q为整数,且1≤q≤k。
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EP19943541.3A EP4016877A4 (en) | 2019-08-30 | 2019-08-30 | ANTENNA CORRECTION DEVICE AND METHOD |
KR1020227008246A KR102669932B1 (ko) | 2019-08-30 | 안테나 교정 장치 및 안테나 교정 방법 | |
PCT/CN2019/103763 WO2021035705A1 (zh) | 2019-08-30 | 2019-08-30 | 天线校正装置和天线校正方法 |
CN201980099705.4A CN114365432B (zh) | 2019-08-30 | 2019-08-30 | 天线校正装置和天线校正方法 |
JP2022513341A JP7416915B2 (ja) | 2019-08-30 | 2019-08-30 | アンテナ較正装置およびアンテナ較正方法 |
US17/682,861 US20220182156A1 (en) | 2019-08-30 | 2022-02-28 | Antenna calibration apparatus and antenna calibration method |
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KR20220044590A (ko) | 2022-04-08 |
US20220182156A1 (en) | 2022-06-09 |
JP2022545932A (ja) | 2022-11-01 |
JP7416915B2 (ja) | 2024-01-17 |
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