WO2023040796A1 - Procédé de prédiction d'écart de phase de canal et dispositif associé - Google Patents

Procédé de prédiction d'écart de phase de canal et dispositif associé Download PDF

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Publication number
WO2023040796A1
WO2023040796A1 PCT/CN2022/118323 CN2022118323W WO2023040796A1 WO 2023040796 A1 WO2023040796 A1 WO 2023040796A1 CN 2022118323 W CN2022118323 W CN 2022118323W WO 2023040796 A1 WO2023040796 A1 WO 2023040796A1
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WIPO (PCT)
Prior art keywords
base station
main lobe
user equipments
lobe
side lobe
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PCT/CN2022/118323
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English (en)
Chinese (zh)
Inventor
龚政委
谭维锴
韩小江
吴文谦
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华为技术有限公司
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Publication of WO2023040796A1 publication Critical patent/WO2023040796A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/15—Performance testing
    • H04B17/17—Detection of non-compliance or faulty performance, e.g. response deviations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/373—Predicting channel quality or other radio frequency [RF] parameters

Definitions

  • the embodiments of the present application relate to the communication field, and in particular, to a channel phase deviation prediction method and related equipment.
  • MIMO multiple-in multiple-out
  • a channel calibration scheme based on terminal air interface measurement can be used, that is, the baseband unit sends the test signal to different terminals, namely user equipment, through the air interface through the radio frequency unit, feeder and antenna
  • the precoding vector and/or channel quality and other measurement information are fed back, and the feedback information includes channel phase deviation information, thereby estimating the phase deviation among multiple channels.
  • the accurate measurement based on the terminal air interface needs to be based on a reasonable assumption, that is, due to the different geographical locations of the user equipment, it is necessary to assume that the amplitude-phase consistency of the corresponding transmitting-side antennas of the user equipment in different locations is ideal, and the amplitude-phase consistency It shows that the amplitude and/or phase of different antennas are completely consistent with the change of angle, but there is a deviation in the amplitude and phase consistency in the actual situation, so the estimated phase deviation between multiple channels is not accurate enough.
  • the embodiment of the present application provides a channel phase deviation prediction method and related equipment for accurately estimating the phase deviation between channels.
  • the embodiment of the present application also provides a corresponding communication device, a computer-readable storage medium, a chip system and a computer program products, etc.
  • the first aspect of the present application provides a channel phase deviation prediction method, the method includes: the base station determines the main lobe device from multiple user equipments, the main lobe device is located in the main lobe direction of the antenna radiation of the base station; the base station sends a test signal to the main lobe The device; the base station receives the feedback signal sent by the main lobe device; the base station predicts the channel phase deviation of the base station based on the feedback signal.
  • the main lobe is the largest radiation beam located on the antenna pattern.
  • the origin of the main lobe is related to the antenna directivity.
  • the antenna directivity refers to the relative value of the antenna radiation field at the same distance from the far zone.
  • the relationship between the spatial direction, the antenna directivity is represented by the antenna pattern, because the antenna pattern is generally petal-shaped, so it is also called the lobe pattern, and the beam within the first zero radiation direction line on both sides of the maximum radiation direction is called main lobe.
  • the main lobe device is the user equipment located in the direction of the main lobe radiated by the antenna of the base station.
  • the main-lobe device passes back the measurement information such as the precoding matrix indicator (precoding matrix indicator, PMI) or channel quality indicator (channel quality indicator, CQI) of the air interface of the base station, and receives
  • the received signal includes the channel phase deviation information, so that the channel phase deviation of the base station can be estimated and predicted.
  • the base station determines the main lobe device from multiple user equipments, then sends a test signal to the main lobe device, and receives the feedback signal sent by the main lobe device, and can predict the channel phase deviation of the base station based on the feedback signal, because the main lobe
  • the lobe device is located in the main lobe direction of the antenna radiation of the base station, and the accuracy of the amplitude-phase consistency corresponding to the main lobe direction of the antenna radiation is relatively high. Therefore, estimation based on the main lobe device can improve the estimation accuracy of the phase deviation based on the terminal air interface measurement, thereby accurately The estimated phase deviation between channels.
  • the base station determining the main lobe device from multiple user equipments includes: the base station based on timing advances of multiple user equipments and reference signals of multiple user equipments in multiple cells The received power and/or the received power of reference signals of multiple user equipments in the cell determine the main lobe equipment.
  • the method for determining the main lobe device includes based on the timing advances of multiple user equipments, the reference signal received power of multiple user equipments in multiple cells, and/or the reference signals of multiple user equipments in this cell.
  • the base station determines the main lobe device based on the timing advances of multiple user equipments includes: the base station obtains the working parameters of the antenna, and the working parameters include antenna height, vertical plane inclination and side The maximum angle of lobe expansion; the base station determines the upper side lobe angle and the lower side lobe angle according to the vertical plane inclination angle and the maximum side lobe expansion angle; the base station determines the upper side lobe distance and the lower side lobe according to the antenna height, upper side lobe angle and lower side lobe angle Distance; the base station determines the target timing advance level according to the upper side lobe distance and the lower side lobe distance; the base station determines the main lobe equipment from multiple user equipments, and the timing advance level of the main lobe equipment is the target timing advance level.
  • the base station can determine the main lobe device based on the timing advances of multiple user equipments, which improves the feasibility of the solution.
  • the base station determines the main lobe device based on the reference signal received power of multiple user equipments in multiple cells includes: the base station sends a control signal to the multiple user equipments, and the control signal is used to Instruct multiple user equipments to report when they are the main lobe equipment, the reference signal received power difference of the main lobe equipment is greater than the preset first threshold value, and the reference signal received power difference is based on the reference signal received power of the current cell and the neighbor cell The received power of the reference signal is determined; the base station determines that the reported multiple user equipments are the main lobe equipment.
  • the base station can determine the main lobe device based on the received power of reference signals of multiple user equipments in multiple cells, which improves the feasibility of the solution.
  • the first threshold value is determined based on the antenna gain value of the own cell corresponding to the maximum side lobe expansion angle and the antenna gain value of the neighboring cell corresponding to the maximum side lobe expansion angle.
  • the first threshold value is based on the antenna gain value of the cell corresponding to the maximum angle of side lobe expansion and The antenna gain value of the adjacent cell corresponding to the maximum side lobe expansion angle is determined, which improves the feasibility of the solution.
  • the first threshold value is based on the antenna gain value of the own cell corresponding to the maximum side lobe expansion angle, the antenna gain value of the neighboring cell corresponding to the maximum side lobe expansion angle, the antenna gain value of the current cell.
  • the first threshold value is based on the antenna gain value of the cell corresponding to the maximum angle of side lobe expansion, The antenna gain value of the adjacent cell corresponding to the maximum side lobe expansion angle, the transmit power value of the current cell, and the transmit power value of the adjacent cell are determined, which improves the feasibility of the solution.
  • the base station determines the main lobe device based on the reference signal received power of multiple user equipments in the cell includes: the base station receives sounding signals sent by multiple user equipments; The signal obtains the reference signal received power between the uplink channels of multiple user equipments; the base station determines the main lobe device from multiple user equipments, and the maximum value of the difference value of the reference signal received power between the uplink channels of the main lobe device is less than the preset second threshold.
  • the base station can determine the main lobe device based on the received reference signal power of multiple user equipments in the cell, which improves the feasibility of the solution.
  • the second threshold value is based on the maximum value of the difference between the antenna gain value of the channel corresponding to the maximum sidelobe expansion angle and the antenna gain value of the neighboring cell corresponding to the maximum sidelobe expansion angle Sure.
  • the second threshold value is based on the antenna gain value and side lobe value of the channel corresponding to the maximum angle of side lobe expansion.
  • the maximum value of the antenna gain value difference of the adjacent cell corresponding to the maximum lobe expansion angle is determined.
  • a second aspect of the present application provides a communications device configured to execute the method in the foregoing first aspect or any possible implementation manner of the first aspect.
  • the base station includes modules or units for performing the method in the above first aspect or any possible implementation manner of the first aspect, such as: a determining unit, a sending unit, a receiving unit, and a predicting unit.
  • the third aspect of the present application provides a communication device, the communication device includes a processor and a memory, the processor is coupled to the memory, and the memory is used to store programs or instructions executed by the processor, or to store input data required by the processor to run instructions, Or store the data generated after the processor executes the instruction, and when the program or the instruction is executed by the processor, the communication device executes the method of the above-mentioned first aspect or any possible implementation manner of the first aspect.
  • the communication device further includes an interface, and the processor is coupled to the interface. Interfaces are used to communicate with other devices.
  • the interface can be a transceiver or an input-output interface.
  • the interface can be, for example, an interface circuit.
  • the fourth aspect of the present application provides a computer-readable storage medium storing instructions, and when the instructions are run on the computer, the method according to the above-mentioned first aspect or any possible implementation manner of the first aspect is executed.
  • the fifth aspect of the present application provides a chip system, the chip system includes at least one processor and an interface, the interface is used to receive data and/or signals, and the at least one processor is used to support the computer device to implement the above first aspect or the first Functions involved in any possible implementation of the aspect.
  • the system-on-a-chip may further include a memory, and the memory is used for storing necessary program instructions and data of the computer device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the sixth aspect of the present application provides a computer program product storing a computer program.
  • the computer program When the computer program is executed, the first aspect or any one of the possible implementation methods of the first aspect can be realized.
  • the base station determines the main-lobe device from multiple user equipments, then sends a test signal to the main-lobe device, and receives the feedback signal sent by the main-lobe device, so that the channel phase deviation of the base station can be predicted based on the feedback signal, because
  • the main lobe device is located in the main lobe direction of the antenna radiation of the base station, and the accuracy of the amplitude-phase consistency corresponding to the main lobe direction of the antenna radiation is high. Therefore, estimation based on the main lobe device can improve the phase deviation estimation accuracy based on the terminal air interface measurement, thereby Accurately estimate the phase deviation between channels.
  • FIG. 1 is a structural diagram of a base station
  • FIG. 2 is a schematic diagram of a channel calibration scheme based on terminal air interface measurement provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of an embodiment of a channel phase deviation prediction method provided in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of amplitude and phase of different antennas provided in the embodiment of the present application.
  • FIG. 5 is another schematic diagram of different antennas provided in the embodiment of the present application.
  • FIG. 6 is a schematic diagram of a base station antenna propagation coverage radius provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the amplitude and phase of the vertical region provided by the embodiment of the present application.
  • FIG. 8 is a schematic diagram of the amplitude and phase of the horizontal region provided by the embodiment of the present application.
  • FIG. 9 is a schematic diagram of an embodiment of a communication device provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of another embodiment of a communication device provided by an embodiment of the present application.
  • the embodiment of the present application provides a channel phase deviation prediction method and related equipment for accurately estimating the phase deviation between channels.
  • the embodiment of the present application also provides a corresponding communication device, a computer-readable storage medium, a chip system and a computer program products, etc. Each will be described in detail below.
  • the base station can be a gNodeB (5G base station) based on (5th generation mobile communication technology, 5G).
  • the base station includes a baseband processing unit, a radio frequency unit and an antenna.
  • the baseband processing unit can be an indoor baseband processing unit (building base band unite , BBU), the radio frequency unit can be a radio remote unit (radio remote unit, RRU), and the communication between the baseband processing unit and the radio frequency unit is completed through multiple optical fiber connections.
  • BBU building base band unite
  • RRU radio remote unit
  • Each optical fiber can be understood as a baseband processing unit and radio frequency
  • the communication channel between the units, the radio frequency unit and the antenna are connected through multiple cables to complete the communication
  • each cable can be understood as a communication channel between the radio frequency unit and the antenna
  • the optical fiber and the cable correspond
  • An antenna is driven by an optical fiber, a radio frequency unit and a cable, that is, one antenna corresponds to one channel, and there are multiple channels between the baseband processing unit and the radio frequency unit.
  • the baseband unit sends the test signal to different terminals through the radio frequency unit, feeder and antenna, that is, user equipment, user equipment Feedback of measurement information such as precoding matrix indicator (PMI) or channel quality indicator (CQI) through the air interface of the base station can be expressed as channel state information (CSI) feedback, and the received received signal can be expressed as for: and further converted to: Where s is the test signal, ⁇ i is the phase deviation information between channels, and thus the phase deviation between multiple channels is estimated
  • PMI precoding matrix indicator
  • CQI channel quality indicator
  • CSI channel state information
  • An embodiment of the channel phase deviation prediction method in the embodiment of the present application includes:
  • the base station determines a main lobe device from multiple user equipments.
  • the base station sends a test signal to the main lobe device.
  • the base station receives the feedback signal sent by the main lobe device.
  • the base station predicts the channel phase deviation of the base station based on the feedback signal.
  • the base station can implement a channel calibration scheme based on the terminal air interface measurement based on the main lobe device. Specifically, the base station sends a test signal s to the main lobe device, and the main lobe device measures the PMI or CQI of the air interface of the base station.
  • the feedback of information can be expressed as channel state information (CSI) feedback, and the received received signal can be expressed as: and further converted to Where s is the test signal, ⁇ i is the phase deviation information between channels, and then the main lobe device returns the feedback signal to the base station, and the feedback signal includes the phase deviation information ⁇ i between channels, so that the base station can estimate the phase between multiple channels deviation
  • CSI channel state information
  • the base station determines the main-lobe device from multiple user equipments, then sends a test signal to the main-lobe device, and receives the feedback signal sent by the main-lobe device, so that the channel phase deviation of the base station can be predicted based on the feedback signal, because
  • the main lobe device is located in the main lobe direction of the antenna radiation of the base station, and the accuracy of the amplitude-phase consistency corresponding to the main lobe direction of the antenna radiation is high. Therefore, estimation based on the main lobe device can improve the phase deviation estimation accuracy based on the terminal air interface measurement, thereby Accurately estimate the phase deviation between channels.
  • the base station determines the main lobe device from multiple user equipments, which are described below:
  • the base station determines the main lobe device based on the timing advances of multiple user equipments:
  • the base station obtains the working parameters of the antenna, which can be obtained specifically by the BBU of the base station, where the working parameters of the antenna include the antenna height h BS , the vertical plane inclination angle and sidelobe spread maximum angle Then determine the distance range corresponding to the main lobe device, where the user equipment closer to the base station is in the lower side lobe of the vertical plane, and the user equipment farther away from the base station is in the upper side lobe of the vertical plane, then the maximum can be extended according to the vertical plane inclination and side lobe The angle determines the upper sidelobe angle and the lower sidelobe angle, where the upper sidelobe angle lower side lobe angle Then the base station determines the upper sidelobe distance and the lower sidelobe distance according to the antenna height, upper sidelobe angle and lower sidelobe angle, where the upper sidelobe distance lower side lobe distance
  • the target timing advance level can be determined according to the upper sidelobe distance and the lower sidelobe distance, specifically, according to the timing advance (timing advancement, TA) of the user equipment The relationship with the propagation distance determines the target timing advance level.
  • the base station can determine the timing advance level from multiple user equipments as the target timing advance level
  • the level user equipment is the main lobe equipment.
  • the user equipment whose timing advance level is the target timing advance level is located in the vertical main lobe area, and the accuracy of the amplitude-phase consistency is high, and the accuracy of the phase deviation between channels estimated based on the main lobe equipment is also improved.
  • the propagation distance of the user equipment can be determined based on the antenna parameters of the base station and the TA measurement value of the user equipment, and the main and side lobe characteristics of the user equipment can be determined based on the propagation distance level, so that the main lobe device can be determined .
  • the base station determines the main lobe device based on the reference signal received power of multiple user equipments in multiple cells:
  • the base station sends a control signal to multiple user equipments.
  • the control signal is used to instruct multiple user equipments to report when the main lobe equipment is the main lobe equipment.
  • the power difference is determined based on the reference signal receiving power (reference signal receiving power, RSRP) of the current cell and the reference signal receiving power of the neighboring cell.
  • RSRP reference signal receiving power
  • the first threshold value may be preset.
  • each user equipment When each user equipment receives the control signal, each user equipment will perform corresponding measurement to determine the reference signal received power difference, wherein the reference signal received power difference
  • , RSRP Serving is the reference signal received power of the local cell
  • RSRP Neighbor is the reference signal received power of the neighboring cell.
  • the threshold value is determined according to the difference between the antenna gain and the transmission power of the cell and the adjacent cell in the corresponding side lobe angle or direction, and the main lobe device can be determined by better utilizing the directivity difference of the antenna.
  • the reference signal received power of multiple user equipments in the cell determines the main lobe equipment:
  • the second threshold value may be preset, and the base station receives sounding signals sent by multiple user equipments, where the sounding signals may be uplink channel sounding reference signals (sounding reference signals, SRS), and the base station may perform sounding reference signals based on the sounding signals.
  • the sounding signals may be uplink channel sounding reference signals (sounding reference signals, SRS)
  • SRS sounding reference signals
  • ⁇ Side is the side lobe angle corresponding to the cell, which can be determined by the normal direction of the cell and the side lobe angle range.
  • the acquisition method of ⁇ Side can be the same as that in method 1 are obtained in the same way.
  • the main lobe device may be determined based on the difference level of uplink RSRP among multiple channels of the current cell.
  • the above three ways of determining the main lobe device can be combined arbitrarily, so that the main lobe device can be determined more accurately, thereby improving the estimation accuracy of the phase deviation between channels.
  • the embodiment of the present application makes full use of the characteristic that the antennas corresponding to the sidelobe devices have a large difference in gain caused by the inconsistency of the amplitude and phase between the antennas corresponding to the multi-channels, eliminates the sidelobe devices, and determines the main lobe device.
  • an embodiment of a communication device 900 provided in this embodiment of the present application includes:
  • the determining unit 901 is configured to determine a main lobe device from a plurality of user equipments, and the main lobe device is located in the main lobe direction of antenna radiation of the base station; the determining unit 901 may execute step 301 in the above method embodiment.
  • the sending unit 902 is configured to send a test signal to the main lobe device; the sending unit 902 can execute step 302 in the above method embodiment.
  • the receiving unit 903 is configured to receive the feedback signal sent by the main lobe device; the receiving unit 903 may execute step 303 in the above method embodiment.
  • the predicting unit 904 is configured to predict the channel phase deviation of the base station based on the feedback signal.
  • the predicting unit 904 may execute step 304 in the foregoing method embodiments.
  • the determination unit 901 determines the main lobe device from multiple user equipments, and then the sending unit 902 sends a test signal to the main lobe device, and the receiving unit 903 receives the feedback signal sent by the main lobe device, and the prediction unit 904 can be based on The feedback signal predicts the channel phase deviation of the base station. Because the main lobe device is located in the main lobe direction of the antenna radiation of the base station, the accuracy of the amplitude-phase consistency corresponding to the main lobe direction of the antenna radiation is relatively high. Therefore, estimation based on the main lobe device can improve the The phase deviation estimation accuracy measured by the air interface of the terminal can accurately estimate the phase deviation between channels.
  • the determining unit 901 is specifically configured to determine the main lobe based on the timing advances of multiple user equipments, the reference signal received power of multiple user equipments in multiple cells, and/or the reference signal received power of multiple user equipments in this cell equipment.
  • the determination unit 901 is also specifically configured to obtain the working parameters of the antenna, the working parameters include the antenna height, the vertical plane inclination and the maximum side lobe expansion angle; determine the upper side lobe angle and the lower side lobe angle according to the vertical plane inclination and the side lobe maximum expansion angle Sidelobe angle; determine the upper sidelobe distance and lower sidelobe distance according to the antenna height, upper sidelobe angle and lower sidelobe angle; determine the target timing advance level according to the upper sidelobe distance and lower sidelobe distance; from multiple user equipment
  • the main lobe device is determined in , and the timing advance level of the main lobe device is the target timing advance level.
  • the determining unit 901 is further configured to send a control signal to multiple user equipments, the control signal is used to instruct multiple user equipments to report when they are the main lobe equipment, and the reference signal received power difference of the main lobe equipment is greater than the preset
  • the first threshold value of the reference signal received power difference is determined based on the reference signal received power of the current cell and the reference signal received power of the neighboring cell; the plurality of user equipments determined to be reported are the main lobe equipment.
  • the first threshold value is determined based on the antenna gain value of the current cell corresponding to the maximum side lobe expansion angle and the antenna gain value of the neighboring cell corresponding to the maximum side lobe expansion angle.
  • the first threshold value is based on the antenna gain value of the own cell corresponding to the maximum side lobe expansion angle, the antenna gain value of the neighboring cell corresponding to the maximum side lobe expansion angle, the transmission power value of the current cell, and the transmission power value of the neighboring cell The value is determined.
  • the determining unit 901 is further configured to receive sounding signals sent by multiple user equipments; obtain reference signal received power between uplink channels of multiple user equipments based on the sounding signals; determine the main lobe device from multiple user equipments, The maximum value of the difference value of the received power of the reference signal between the uplink channels of the main lobe device is smaller than the preset second threshold value.
  • the second threshold value is determined based on the maximum value of the difference between the antenna gain value of the channel corresponding to the maximum side lobe expansion angle and the antenna gain value of the neighboring cell corresponding to the maximum side lobe expansion angle.
  • the communication device 1000 includes: a processor 1001 and an interface 1003 , and the processor 1001 is coupled to the interface 1003 .
  • the interface 1003 is used to communicate with other devices.
  • the interface 1003 may be a transceiver or an input-output interface.
  • Interface 1003 may be, for example, an interface circuit.
  • the communication device 1000 further includes a memory 1002, the processor 1001 is coupled to the memory 1002, and the memory 1002 is used to store the instructions executed by the processor 1001 or store the input data required by the processor 1001 to run the instructions or store the processor 1001 to run Data generated after the command.
  • the method performed by the base station in the above embodiments may be implemented by the processor 1001 calling a program stored in a memory (which may be the memory 1002 of the multi-antenna device, or may be an external memory). That is, the base station may include a processor 1001, and the processor 1001 executes the method performed by the base station in the above method embodiments by calling a program in a memory.
  • the processor here may be an integrated circuit with signal processing capabilities, such as a CPU.
  • a base station may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementation manners may be combined.
  • the functions/implementation process of the determining unit 901 and the predicting unit 904 in FIG. 9 may be realized by calling the computer-executable instructions stored in the memory 1002 by the processor 1001 in the communication device 1000 shown in FIG. 10 .
  • the function/implementation process of the sending unit 902 and the receiving unit 903 in FIG. 9 can be realized by the processor 1001 in the communication device 1000 shown in FIG.
  • the function/implementation process of the unit 902 and the receiving unit 903 can be realized through the interface 1003 in the communication device 1000 shown in FIG.
  • the program instructions in the memory are implemented with the driver interface 1003 .
  • the terminal device chip When the communication apparatus 1000 is a chip applied to a terminal device, the terminal device chip implements the functions of the terminal device in the above method embodiment.
  • the terminal device chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is from other terminal devices or network devices; or, the terminal device chip sends information to other modules in the terminal device (such as radio frequency modules) or antenna) to send information, which is sent by a terminal device to other terminal devices or network devices.
  • the network device chip When the communication apparatus 1000 is a chip applied to a network device, the network device chip implements the functions of the network device in the above method embodiments.
  • the network device chip receives information from other modules in the network device (such as radio frequency modules or antennas), and the information is from other network devices or terminal devices; or, the network device chip sends information to other modules in the network device (such as radio frequency modules) or antenna) to send information, which is sent by network devices to other network devices or terminal devices.
  • a computer-readable storage medium in which computer-executable instructions are stored, and when at least one processor of the device executes the computer-executable instructions, the device executes the above implementation
  • the channel phase deviation prediction method described in the example is also provided.
  • a computer program product in another embodiment, includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium;
  • the computer-executable instruction is read by reading the storage medium, and at least one processor executes the computer-executable instruction so that the device executes the channel phase deviation prediction method described in the foregoing embodiments.
  • a chip system in another embodiment, is also provided.
  • the chip system includes at least one processor and an interface, the interface is used to receive data and/or signals, and the at least one processor is used to support the implementation of the above-mentioned embodiment. Described channel phase deviation prediction method.
  • the system-on-a-chip may further include a memory, and the memory is used for storing necessary program instructions and data of the computer device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the disclosed system, device and method can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is realized in the form of a software function 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 is essentially or part of the contribution to the prior art or all or 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 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 (ROM, read-only memory), random access memory (RAM, random access memory), magnetic disk or optical disc, etc., which can store program codes. .

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Abstract

Selon des modes de réalisation, la présente invention concerne un procédé de prédiction d'écart de phase de canal et un dispositif associé, qui sont appliqués dans le domaine des communications et qui peuvent être mis en œuvre par une station de base. Le procédé comprend plus précisément les étapes suivantes : une station de base détermine un dispositif en lobe principal parmi une pluralité d'équipements utilisateur, puis envoie un signal de test au dispositif en lobe principal, et reçoit un signal de rétroaction envoyé par le dispositif en lobe principal, de telle sorte que l'écart de phase de canal de la station de base puisse être prédit sur la base du signal de rétroaction. Puisque le dispositif en lobe principal est situé dans une direction de lobe principal du rayonnement d'antenne de la station de base, et que la précision de la cohérence amplitude-phase correspondant à la direction de lobe principal du rayonnement d'antenne est élevée, l'estimation basée sur le dispositif en lobe principal peut augmenter la précision de l'estimation d'écart de phase basée sur une mesure d'interface radio de terminal, ce qui permet d'estimer avec précision l'écart de phase entre canaux.
PCT/CN2022/118323 2021-09-17 2022-09-13 Procédé de prédiction d'écart de phase de canal et dispositif associé WO2023040796A1 (fr)

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CN101109812A (zh) * 2007-07-06 2008-01-23 哈尔滨工程大学 警戒雷达主副瓣跟踪装置及其跟踪方法
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CN103828270A (zh) * 2013-06-27 2014-05-28 华为技术有限公司 基于天馈系统的通道校准方法、装置及基站
CN109075847A (zh) * 2016-02-03 2018-12-21 株式会社Ntt都科摩 用于无线通信的用户设备和方法
WO2021117010A1 (fr) * 2019-12-13 2021-06-17 Telefonaktiebolaget Lm Ericsson (Publ) Étalonnage d'antenne assisté pour systèmes radio partagés

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101109812A (zh) * 2007-07-06 2008-01-23 哈尔滨工程大学 警戒雷达主副瓣跟踪装置及其跟踪方法
CN103299667A (zh) * 2011-01-07 2013-09-11 株式会社Ntt都科摩 移动终端装置、无线基站装置、以及无线通信方法
CN103828270A (zh) * 2013-06-27 2014-05-28 华为技术有限公司 基于天馈系统的通道校准方法、装置及基站
CN109075847A (zh) * 2016-02-03 2018-12-21 株式会社Ntt都科摩 用于无线通信的用户设备和方法
WO2021117010A1 (fr) * 2019-12-13 2021-06-17 Telefonaktiebolaget Lm Ericsson (Publ) Étalonnage d'antenne assisté pour systèmes radio partagés

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