WO2018149346A1 - Procédé de détermination de doa, procédé devant être utilisé dans une détermination de doa, dispositif de réseau d'accès, et terminal - Google Patents

Procédé de détermination de doa, procédé devant être utilisé dans une détermination de doa, dispositif de réseau d'accès, et terminal Download PDF

Info

Publication number
WO2018149346A1
WO2018149346A1 PCT/CN2018/075596 CN2018075596W WO2018149346A1 WO 2018149346 A1 WO2018149346 A1 WO 2018149346A1 CN 2018075596 W CN2018075596 W CN 2018075596W WO 2018149346 A1 WO2018149346 A1 WO 2018149346A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
terminal
access network
network device
indication information
Prior art date
Application number
PCT/CN2018/075596
Other languages
English (en)
Chinese (zh)
Inventor
罗晓宇
夏欣
刘云
阳建军
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2018149346A1 publication Critical patent/WO2018149346A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • Embodiments of the present application relate to the field of communications, and more particularly, to a method of determining a direction of arrival (DOA), a method for determining a DOA, an access network device, and a terminal.
  • DOA direction of arrival
  • Wireless communication in the high frequency band is one of the key technologies of new wireless (new) (NR) communication.
  • the high frequency band includes a centimeter wave band and a millimeter wave band.
  • the centimeter wave band usually refers to the spectrum in the range of 3 GHz to 30 GHz
  • the millimeter wave band usually refers to the spectrum in the range of 30 GHz to 300 GHz.
  • BF beam forming
  • Beamforming technology refers to controlling the direction of the transmitting beam by adding different weights to different antennas, so that the beam can better match the channel, so that the beam can concentrate energy-enhanced coverage.
  • Beamforming technology on the same time-frequency resource, data of different users can be transmitted through more spatial dimensions, thereby improving multiplexing gain.
  • An implementation manner of the beamforming technology is: the antenna of the access network device receives the signal, and transmits the signal to the baseband processing unit, and the baseband processing unit determines the DOA of the signal according to the signal received by the antenna, and uses the DOA information to design Excellent or optimal analog beam weights to obtain a better or optimal analog beam.
  • the access network device since the size of the signal received by the baseband processing unit is much smaller than the antenna dimension, that is, the signal obtained by the baseband processing unit is the mixed data of the signals received by all the antennas of the access network device, therefore, the access network device needs to be from these mixed After the data is estimated to be full channel information, the DOA can be determined based on the estimated full channel information.
  • the access network device needs to utilize the sparseness of the signal received by the antenna in the airspace, and uses the compressed sensing algorithm to estimate the full channel information of the antenna dimension according to the antenna signal transmitted by the radio frequency (RF) link.
  • RF radio frequency
  • the embodiments of the present application provide a method for determining a DOA, a method for determining a DOA, an access network device, and a terminal, which can reduce computational complexity of an access network device.
  • an embodiment of the present application provides a method for determining a DOA.
  • the method includes: the access network device receiving, by using the first antenna subset, the first signal sent by the first terminal, where the number of antennas in the first antenna subset is less than or equal to the number of radio link links of the access network device;
  • the access network device determines, according to the first signal, a first direction of arrival of the signal sent by the first terminal.
  • the access network device receives the first signal sent by the first terminal by using the first antenna subset, and the number of antennas in the first antenna subset is less than or equal to the number of the RF link, so the access network device receives
  • the dimension of the first signal is less than or equal to the dimension of the RF link, so the access network device may not need to use a more complex algorithm such as a compressed sensing algorithm to determine channel information, but may directly base the antenna according to the first antenna subset.
  • the received signal determines the DOA of the signal, thereby reducing the computational complexity of the access network device.
  • the access network device may be a Radio Access Network (RAN) device.
  • the first signal is a DOA for the access network device to determine the signal of the first terminal.
  • the first signal may be a pilot signal, and further, the first signal may be a pilot signal that is specifically sent by the terminal for determining, by the access network device, the signal sent by the first terminal to determine the DOA.
  • the antenna in the first antenna subset may be a collection of any of all antennas on the access network device. The first subset of antennas may be pre-configured on the access network device.
  • the access network device can connect the RF link with the first antenna subset by using a switch, so that the baseband processing unit of the access network device obtains the signal received by the first antenna subset, that is, the access network device passes The first antenna subset receives the first signal sent by the first terminal.
  • the number of selection switches can be equal to or less than the number of RF links.
  • the method before the access network device receives the first signal sent by the first terminal by using the first antenna subset, the method further includes: the access network device to the first terminal Sending the first indication information, where the first indication information is used to instruct the first terminal to send the first signal.
  • the first indication information is sent by the access network device to the first terminal, and the first terminal is sent to determine the DOA of the signal sent by the first terminal, so that the signal of the first terminal can be improved.
  • the flexibility of the DOA is sent by the access network device to the first terminal, and the first terminal is sent to determine the DOA of the signal sent by the first terminal, so that the signal of the first terminal can be improved.
  • the access network device may send the first indication information to the first terminal by using a downlink control channel (DCCH) or a downlink broadcast channel (DBCH).
  • DCCH downlink control channel
  • DBCH downlink broadcast channel
  • the first terminal may send the first signal to the access network device according to its own needs.
  • the method before the access network device receives the first signal sent by the first terminal by using the first antenna subset, the method further includes: the access network device to the first terminal Sending the second indication information, where the second indication information is used to indicate that the first terminal sends the target subframe of the first signal, where the access network device receives, by using the first antenna subset, the first terminal to send
  • the first signal includes: the access network device receiving the first signal by using the first antenna subset in the target subframe.
  • the access network device may send the second indication information to the first terminal, instructing the first terminal to send the target subframe of the first signal, and the access network device may send the first terminal to send in the target subframe.
  • the first signal can improve the flexibility of using the subframe when the first terminal sends the first signal, thereby improving communication flexibility.
  • the access network device may send the second indication information to the first terminal by using a downlink control channel or a downlink broadcast channel.
  • the access network device sends both the first indication information and the second indication information
  • the first indication information and the second indication information may be carried in the same message.
  • the first indication information and the second indication information may be the same indication information.
  • the second indication information may also implicitly indicate that the first terminal sends the first signal, that is, the second indication information may also be used as the first indication information; If the target subframe is not indicated, it indicates that the first terminal does not need to send the first signal.
  • the information about the target subframe that sends the first signal may be pre-configured on the first terminal, and the information about the target subframe that receives the first signal may be pre-configured on the access network device.
  • the method before the access network device receives the first signal sent by the first terminal by using the first antenna subset, the method further includes: the access network device to the first terminal Sending the third indication information, where the third indication information is used to indicate that the first terminal sends the following at least one location of the first signal: a time domain resource location and a frequency domain resource location.
  • the access network device may indicate, by using the third indication information, that the first terminal sends the time domain resource location or the frequency domain resource location of the first signal, or indicates both the time domain resource location and the frequency domain resource location, and The time domain resource location or the frequency domain resource location receives the first signal sent by the first terminal, so that the use flexibility of the time domain resource or the frequency domain resource can be improved, thereby improving communication flexibility.
  • the access network device may send the third indication information to the first terminal by using a downlink control channel or a downlink broadcast channel.
  • the second indication information and the third indication information may be carried in the same message, and the third indication information indicates the time domain resource location or The frequency domain resource location may be a location in a target subframe indicated by the second indication information.
  • the method further includes: the access network device receiving, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to The number of radio link links of the access network device; the access network device determines a second direction of arrival of the signal sent by the first terminal according to the second signal and the first direction of arrival.
  • the accuracy of the second direction of arrival can be improved, that is, the first terminal is improved.
  • the accuracy of the direction of arrival of the signal can improve the efficiency of communication.
  • the second antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the access network device can connect the RF link with the second antenna subset by using a selection switch, so that the baseband processing unit of the access network device obtains the signal received by the second antenna subset, that is, the access network device passes The second subset of antennas receives the second signal transmitted by the first terminal.
  • the method further includes: the access network device receiving, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to The number of radio link links of the access network device, where the access network device determines, according to the first signal, a first direction of arrival of the signal sent by the first terminal, where: the access network device is configured according to Determining, by the first signal and the second signal, the first direction of arrival of the signal sent by the first terminal.
  • the first direction of arrival is determined by the access network device based on signals received by the two antenna subsets. Compared with the direction of arrival determined according to the signal received by one antenna subset, since more signals are based, the accuracy of the first direction of arrival can be improved, that is, the accuracy of the direction of arrival of the signal of the first terminal is improved. Therefore, the efficiency of communication can be improved.
  • the second antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the first signal and the second signal described herein, and the third signal described later, are for convenience of description, and are not intended to distinguish the signals transmitted by the first terminal.
  • the first terminal includes a first port and a second port, where the access network device receives the first signal sent by the first terminal by using the first antenna subset, including: Receiving, by the access network device, the first signal sent by the first port of the first terminal by using the first antenna subset; and determining, by the access network device, the first terminal according to the first signal
  • the first direction of arrival of the sent signal includes: determining, by the access network device, a first direction of arrival of the signal sent by the first port according to the first signal; the method further includes: Receiving, by the third antenna subset, the third signal sent by the second port of the first terminal, where the first signal and the third signal are in a time division multiplexing manner and a frequency division multiplexing manner. And transmitting, by the at least one mode, the access network device determines, according to the third signal, a direction of arrival of the signal sent by the second port.
  • the first terminal may include multiple ports, and the access network device receives multiple ports of the first terminal by time division multiplexing or frequency division multiplexing, or by time division and frequency division multiplexing. signal of.
  • the method of the method of determining the access network device is specifically the direction of the signal sent by the different ports of the first terminal, so that the direction of the arrival determined by the access network device is accurate to the port of the first terminal, thereby improving The accuracy of the communication.
  • the port can be a logical port or an antenna or an antenna port.
  • the third antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the third indication information may be used to indicate that the first port of the first terminal sends the at least one of the time domain resource location and the frequency domain resource location of the first signal, and may further indicate that the second port of the first terminal sends the third port. At least one of a time domain resource location and a frequency domain resource location of the signal.
  • the method further includes: the access network device receiving, by using a fourth antenna subset, a fourth signal sent by the second terminal; and the access network device according to the fourth signal, Determining a direction of arrival of the second terminal to transmit a signal, where the fourth signal and the first signal are sent in at least one of a time division multiplexing manner and a frequency division multiplexing manner.
  • the access network device may receive the first signal sent by the first terminal and the other terminal in at least one of a time division multiplexing manner and a frequency division multiplexing manner, that is, the access network device may further
  • the signals transmitted by other terminals determine the DOA of the signals of other terminals, thereby improving the efficiency of communication.
  • the fourth antenna subset may be the same as or different from the first antenna subset.
  • the method further includes: determining, by the access network device, a beam that communicates with the first terminal according to the first direction of arrival.
  • the access network device may determine, according to the second direction of arrival, a beam that communicates with the first terminal. At this time, since the second direction of arrival is more accurate than the first direction of arrival, a beam having a higher communication quality is determined, so that communication quality can be improved.
  • the method further includes: the access network device transmitting a signal by using a beam scanning manner in a downlink subframe; the access network device receiving beam improvement information sent by the first terminal or a beam state information; the access network device selects a beam that communicates with the first terminal according to the beam improvement information or beam state information; wherein the access network device sends the first indication information to the first terminal, including When the access network device determines that the selected beam does not meet the preset communication condition, the access network device sends the first indication information to the first terminal.
  • the access network device may send at least one of the first indication information, the second indication information, and the third indication information to the first terminal when the beam selected by the traditional beam scanning method does not meet the communication condition.
  • the information is such that the access network device can perform the method in any one of the foregoing possible implementation manners, determine a direction of arrival of the signal of the first terminal, and determine a beam that communicates with the first terminal according to the direction of arrival.
  • the access network device can directly communicate with the first terminal by using the beam if the beam selected by the access network device according to the beam improvement information or the beam state information satisfies the communication condition.
  • an embodiment of the present application provides a method for determining a DOA.
  • the method includes: the terminal receiving the first indication information sent by the access network device, where the first indication information is used to instruct the terminal to send the first signal received by the first antenna subset of the access network device, where The first signal is used by the access network device to determine a DOA of the signal sent by the terminal, where the number of antennas in the first antenna subset is less than or equal to the number of radio link links of the access network device;
  • the terminal sends the first signal according to the first indication information.
  • the terminal may send the first signal to the access network device according to the first indication information sent by the access network device, so that the access network device can determine the DOA of the signal sent by the terminal according to the first signal, thereby improving Determine the flexibility of the DOA of the signal of the terminal.
  • the first signal may be a pilot signal.
  • the pilot signal may be a pilot signal specifically transmitted by the terminal for determining, by the access network device, the DOA of the signal sent by the terminal.
  • the terminal may also send the first signal to the access network device according to its own needs, without sending the first signal according to the first indication information.
  • the method further includes: the terminal receiving the second indication information sent by the access network device, where the second indication information is used to instruct the terminal to send the first signal And the transmitting, by the terminal, the first signal according to the first indication information, where the terminal sends the first signal in the target subframe according to the first indication information.
  • the terminal may send the first signal to the access network device in the target subframe according to the second indication information, so that the flexibility of the terminal to send the first signal may be improved, thereby improving communication flexibility.
  • the method further includes: receiving, by the terminal, third indication information that is sent by the access network device, where the third indication information is used to instruct the terminal to send the first signal At least one of the following locations: a time domain resource location or a frequency domain resource location; wherein the terminal sends the first signal according to the first indication information, including: the terminal according to the first indication information, The at least one location transmits the first signal.
  • the terminal may send the first to the access network device according to the time domain resource location or the frequency domain resource location indicated by the third indication information, or according to the time domain resource location and the frequency domain resource location indicated by the third indication information.
  • Signals which can increase the flexibility of use of time domain resources or frequency domain resources, thereby improving communication flexibility.
  • the terminal sends the first signal according to the first indication information, including: the terminal uses a time division multiplexing manner and a frequency division multiplexing manner according to the first indication information. At least one mode, the first signal is sent by the first port of the terminal, and the second signal is sent by the second port of the terminal, where the first signal is used to determine that the first port is sent The DOA of the signal, the second signal being used to determine the DOA of the signal transmitted by the second port.
  • the terminal may send a signal to the access network device through multiple ports in at least one of a time division multiplexing manner and a frequency division multiplexing manner, so that the access network device can determine each port.
  • the direction of arrival of the signal can be used to determine a more accurate direction of arrival.
  • the terminal sends the first signal according to the first indication information, including: the terminal, according to the first indication information, time division multiplexing manner and frequency division with other terminals Transmitting the first signal in at least one of multiplexing modes.
  • the terminal may send a signal to the access network device in at least one of a time division multiplexing manner and a frequency division multiplexing manner, so that the access network device can determine multiple The direction of the signal of the terminal, which can improve the utilization of resources.
  • the terminal in the method may be the first terminal in the first aspect. Therefore, the technical features related to the first terminal in the first aspect are also applicable to the terminal in the method. For brevity, details are not described herein again.
  • an access network device comprising means for performing a method of determining a DOA in any of the possible implementations of the first aspect or the first aspect.
  • a terminal comprising means for performing the method for determining a DOA in any of the possible implementations of the second aspect or the second aspect.
  • an access network device including a receiver and a processor, and optionally, a transmitter.
  • the processor is for executing code.
  • the receiver and processor implement the method of determining a DOA in any one of the possible implementations of the first aspect or the first aspect.
  • a terminal including a receiver, a processor, and a transmitter.
  • the processor is for executing code.
  • the receiver, processor, and transmitter implement a method for determining a DOA in any one of the possible implementations of the second aspect or the second aspect.
  • a seventh aspect a computer readable medium storing program code for execution by an access network device, the program code comprising for performing any of the first aspect or the first aspect An instruction to determine the method of the DOA in a possible implementation.
  • a computer readable medium storing program code for execution by a terminal, the program code comprising for performing any one of the second aspect or the second aspect An instruction in the implementation for determining the method of the DOA.
  • a ninth aspect a computer program product comprising instructions for causing an access network device to perform DOA determination in any one of the possible implementations of the first aspect or the first aspect when operating on an access network device Methods.
  • a computer program product comprising instructions which, when run on a terminal, cause the terminal to perform the method for DOA in any of the possible implementations of the second aspect or the second aspect.
  • FIG. 1 is a schematic system architecture diagram of a method, an access network device, and a terminal to which an embodiment of the present application can be applied.
  • FIG. 2 is a schematic flowchart of a method for determining a DOA according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 4 is a schematic connection diagram of an antenna selection switch according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for determining an DOA by an access network device according to an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a method for determining an DOA by an access network device according to an embodiment of the present application.
  • FIG. 7 is a diagram showing an example of a signal transmitted by a plurality of ports of an access network device receiving terminal of an embodiment of the present application.
  • FIG. 8 is a diagram showing an example of a signal transmitted by a plurality of ports of an access network device receiving terminal of an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a method for determining a DOA according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an access network device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • a terminal which may also be referred to as a user equipment, a client terminal device or a mobile equipment (ME), is a device that provides voice and/or data connectivity to a user, for example, a handheld device with wireless connectivity. , in-vehicle equipment, etc.
  • Common terminals include, for example, mobile phones, tablets, notebook computers, PDAs, mobile internet devices (MIDs), wearable devices such as smart watches, smart bracelets, pedometers, and the like.
  • a radio access network (RAN) device which may also be called a base station, is a device that connects a terminal to a wireless network, including but not limited to: a transmission reception point (TRP), Evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (base transceiver) Station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), or Wifi access point (AP).
  • TRP transmission reception point
  • eNB Evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home base station
  • home base station for example, home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • Wifi access point AP
  • High frequency band Generally refers to frequency bands above 6 GHz, such as centimeter wave, millimeter wave, etc.
  • FIG. 1 is an application scenario diagram of a method, an access network device, and a terminal in an embodiment of the present application. It should be understood that the application scenario shown in FIG. 1 is only an example, and other devices or devices may be included in the application scenario of the embodiment of the present application, or include devices similar in function to the devices in FIG. 1 .
  • the application scenario shown in FIG. 1 includes an access network device 110 and a terminal 120.
  • the access network device 110 and the terminal 120 can communicate through the high frequency band.
  • the terminal 120 may be a single antenna terminal or a multiple antenna terminal.
  • FIG. 2 is an exemplary flowchart of a method of determining a DOA in an embodiment of the present application. It should be understood that FIG. 2 illustrates the steps or operations of the method of determining the DOA, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the various operations in FIG. 2.
  • the access network device receives, by using the first antenna subset, the first signal sent by the first terminal, where the number of antennas in the first antenna subset is less than or equal to the number of radio link links of the access network device.
  • the access network device may be a radio access network device.
  • the access network device may include an antenna array, a radio frequency link, a baseband processing unit, and the like.
  • the number of antennas included in the antenna array may be much larger than the number of radio links.
  • the radio frequency link may also be referred to as a channel.
  • the baseband processing unit may specifically be a digital beam forming (DBF) baseband processing unit.
  • DBF digital beam forming
  • the first signal is a signal for the access network device to determine the DOA of the first terminal.
  • the access network device can determine that the signal of the DOA of the first terminal can be referred to as a first signal.
  • the first signal may be a pilot signal.
  • the first signal may be a pilot signal that is specifically sent by the terminal for determining, by the access network device, the DOA of the first terminal to send a signal.
  • the antenna in the first antenna subset may be a collection of any of all antennas on the access network device.
  • the first subset of antennas may be pre-configured on the access network device.
  • the access network device determines, according to the first signal, a first direction of arrival of the signal sent by the first terminal.
  • the access network device may use multiple signal classification (MUSIC), Capon, etc. to determine the DOA of the first signal according to the first signal.
  • MUSIC multiple signal classification
  • Capon etc.
  • the access network device receives the first signal sent by the first terminal by using the first antenna subset, and the number of antennas in the first antenna subset is less than or equal to the number of the RF links, and therefore the access network device
  • the dimension of the received first signal is less than or equal to the dimension of the RF link, so the access network device may not need to use a more complex algorithm such as a compressed sensing algorithm to determine channel information, but may directly according to the first antenna subset.
  • the first signal received by the antenna determines the DOA, thereby reducing the computational complexity of the access network device.
  • the access network device when the access network device receives the first signal of the first terminal by using the antenna in the first antenna set, the access network device may be implemented in multiple manners.
  • An antenna selection unit may be added to the access network device, and the antenna selection unit may include a plurality of selection switches. The number of selection switches can be less than or equal to the number of radio links. Each selector switch can connect one of the RF link and one of the antenna arrays. All antennas connected to the radio frequency link through the selection switch constitute a first antenna set.
  • a selector switch can be fixedly coupled to an RF link that can connect the RF link to which it is connected to any antenna in the antenna array as desired.
  • all antennas connected to the RF link through the selection switch constitute an antenna set.
  • the set of antennas may be referred to as a first antenna set, a second antenna set, or a third antenna set, and the like.
  • FIG. 3 is a schematic structural diagram of an access network device in which the method shown in FIG. 2 can be implemented. It should be understood that the access network device shown in FIG. 3 is only an example, and the access network device in the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 3, or To include all the modules in Figure 3.
  • the access network device in this embodiment of the present application may include an antenna array 310, an antenna selection unit 320, a plurality of radio frequency links 330, and a baseband processing unit 340.
  • Antenna array 310 can include multiple antennas.
  • the antenna array 310, or the antenna array 310, may be used to transmit radio frequency signals to the terminal, and may also be used to receive radio frequency signals sent by the terminal.
  • the antenna selection unit 320 may include a plurality of antenna selection switches.
  • the plurality of antenna selection switches can be connected to the plurality of radio frequency links 330 one by one.
  • each antenna selection switch and the corresponding radio frequency link may be directly connected or indirectly connected, for example, there may be other units or devices between the antenna selection switch and the radio frequency link.
  • the antenna selection switch can connect the corresponding radio frequency link with any antenna in the antenna array. Specifically, the antenna selection switch can connect the corresponding radio frequency link with the corresponding antenna in the antenna array according to requirements.
  • each antenna selection switch shown in FIG. 4 can connect the corresponding radio frequency link with any antenna, which is only an example and should not constitute a limitation of the embodiment of the present application.
  • some antenna selection switches may only connect corresponding radio frequency links with certain specific antennas.
  • the access network device may receive, by using different antenna subsets, signals that are available for determining the DOA sent by the first terminal in different time periods.
  • the access network device may include four radio frequency links and four antenna selection switches.
  • the antenna array of the access network device includes four sub-arrays, and each sub-array includes four antennas.
  • one symbol represents a time period.
  • the antenna selection switch of the access network device may connect the five radio frequency links with the first sub-array of the antenna array in the first symbol, and the first sub-array 1 is an antenna set.
  • the access network device can receive the signal transmitted by the terminal through the four antennas in the sub-array 1, and determine the DOA according to the signal.
  • the antenna selection switch of the access network device can connect the four radio frequency links with the sub-array 4 in the antenna array in the fourth symbol, and the sub-array 4 is an antenna set.
  • the access network device can receive the signal transmitted by the terminal through the 4 antennas in the sub-array 4, and determine the DOA according to the signal.
  • the antenna selection switch of the access network device may connect the four radio frequency links with the first antenna of the four sub-arrays in the first symbol, and the first antenna of the four sub-arrays Form a subset of antennas.
  • the antenna selection switch of the access network device can connect the four RF links with the fourth antenna of the four sub-arrays in the fourth symbol.
  • the fourth antenna of the four sub-arrays constitutes a subset of antennas.
  • the manner in which the antenna selection switch shown in FIG. 5 and FIG. 6 connects the radio frequency link to the antenna in the antenna array is only an example, and should not be limited in the embodiment of the present application.
  • the method before the access network device receives the first signal sent by the first terminal by using the first antenna subset, the method further includes: the access network device sends the first indication information to the first terminal, where the first indication is The information is used to instruct the first terminal to send the first signal.
  • Sending the first indication information to the first terminal by the access network device, instructing the first terminal to send the first signal to determine the DOA of the signal sent by the first terminal may improve the flexibility of determining the DOA of the signal sent by the first terminal.
  • the access network device may send the first indication information to the first terminal by using a downlink control channel or a downlink broadcast channel.
  • the method may further include: the access network device sends the second indication information to the first terminal, where the second indication is The information is used to instruct the first terminal to send the target subframe of the first signal.
  • the access network device receives the first signal sent by the first terminal by using the first antenna subset
  • the method may include: the access network device receives the first sent by the first terminal by using the first antenna subset in the target subframe. signal.
  • the access network device sends the second indication information to the first terminal, instructing the first terminal to send the target subframe of the first signal, and receiving the first signal sent by the first terminal in the target subframe, which can improve the access network device and The flexibility of communication between terminals.
  • the access network device may send the second indication information to the first terminal by using a downlink control channel or a downlink broadcast channel.
  • the access network device sends both the first indication information and the second indication information
  • the first indication information and the second indication information may be carried in the same message.
  • the first indication information and the second indication information may be the same indication information.
  • the second indication information may also implicitly indicate that the first terminal sends the first signal, that is, the second indication information may also be used as the first indication information; If the target subframe is not indicated, it indicates that the first terminal does not need to send the first signal.
  • the information about the target subframe that sends the first signal may be pre-configured on the first terminal, and the information about the target subframe that receives the first signal may be pre-configured on the access network device.
  • the pre-configured target subframe receives the first signal sent by the first terminal.
  • the method before the access network device receives the first signal sent by the first terminal by using the first antenna subset, the method further includes: the access network device sends the third indication information to the first terminal, where the third indication is The information is used to indicate that the first terminal sends the following at least one location of the first signal: a time domain resource location and a frequency domain resource location.
  • the access network device may instruct the first terminal to send the time domain resource location or the frequency domain resource location of the first signal, or may indicate both the time domain resource location and the frequency domain resource location.
  • the access network device instructs the first terminal to send the time domain resource location or the frequency domain resource location of the first signal, or both the time domain resource location and the frequency domain resource location, and in the time domain resource location or The frequency domain resource location receives the first signal sent by the first terminal, so that the flexibility of communication between the access network device and the first terminal can be improved.
  • the access network device may send the third indication information to the first terminal by using a downlink control channel or a downlink broadcast channel.
  • the second indication information and the third indication information may be carried in the same message, and the third indication information may be indicated by the second indication information.
  • the access network device sends the first indication information and the second indication information, and the third indication information is also sent, the first indication information, the second indication information, and the third indication information may be carried in the same message.
  • the access network device and the first terminal may be pre-configured with a time domain resource location or a frequency domain resource location where the first terminal sends the first signal. At this time, the access network device may not need to send the third indication information.
  • the method shown in FIG. 2 may further include: the access network device receiving, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to the radio frequency of the access network device.
  • the number of links the access network device determines the second direction of arrival of the signal sent by the first terminal according to the second signal and the first direction of arrival.
  • the accuracy of the second direction of arrival can be improved, that is, the direction of arrival of the signal of the first terminal is improved.
  • the accuracy of the communication can improve the efficiency of communication.
  • the access network device may determine, according to the signal received by the sub-array 1, the first DOA of the first terminal to send a signal, and then the access device may determine, according to the signal received by the sub-array 2 and the first DOA, that the first terminal sends the signal.
  • the second DOA of the signal may be determined, according to the signal received by the sub-array 1, the first DOA of the first terminal to send a signal, and then the access device may determine, according to the signal received by the sub-array 2 and the first DOA, that the first terminal sends the signal.
  • the second DOA of the signal may be determined, according to the signal received by the sub-array 1, the first DOA of the first terminal to send a signal.
  • the second antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the method for the access network device to receive the second signal sent by the first terminal by using the second antenna subset may refer to the method for the access network device to receive the first signal sent by the first terminal by using the first antenna subset, and details are not described herein again. .
  • the first signal and the second signal described herein, and the third signal described later, are for convenience of description, and are not intended to distinguish the signals transmitted by the first terminal.
  • the method shown in FIG. 2 may further include: the access network device receiving, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to the radio link of the access network device. Quantity.
  • the determining, by the access network device, the first direction of the first terminal to send the signal according to the first signal the method may include: determining, by the access network device, the first terminal according to the first signal and the second signal The first direction of arrival of the transmitted signal.
  • the first direction of arrival is determined by the access network device based on the signals received by the two antenna subsets. Compared with the direction of arrival determined according to the signal received by one antenna subset, since more signals are based, the accuracy of the first direction of arrival can be improved, that is, the accuracy of the direction of arrival of the signal of the first terminal is improved. Therefore, the efficiency of communication can be improved.
  • the access network device can determine the second DOA of the first terminal to transmit a signal according to the signal received by the sub-array 1 and the signal received by the sub-array 2.
  • the method for the access network device to receive the second signal sent by the first terminal by using the second antenna subset may refer to the method for the access network device to receive the first signal sent by the first terminal by using the first antenna subset, and details are not described herein again. .
  • the second antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the first terminal may include a first port and a second port.
  • the access network device receives the first signal sent by the first terminal by using the first antenna subset, and the method may include: the access network device receiving, by using the first antenna subset, the first signal sent by the first port of the first terminal.
  • the access network device determines, according to the first signal, the first direction of arrival of the signal sent by the first terminal, where the access network device determines, according to the first signal, the first direction of arrival of the signal sent by the first port.
  • the method shown in FIG. 2 may further include: the access network device receiving, by using the third antenna subset, the third signal sent by the second port of the first terminal, where the first signal and the third signal are time division multiplexed and frequency And transmitting, by the at least one mode, the access network device determines, according to the third signal, a direction of arrival of the signal sent by the second port.
  • the access network device receives signals sent by multiple ports of the first terminal by time division multiplexing or frequency division multiplexing, or by time division and frequency division multiplexing.
  • the method of the method of determining the access network device is specifically the direction of the signal sent by the different ports of the first terminal, so that the direction of the arrival determined by the access network device is accurate to the port of the first terminal, thereby improving The accuracy of the communication.
  • the port can be a logical port or an antenna or an antenna port.
  • the second antenna subset may be the same as or different from the first antenna subset, and the second signal and the first signal may be the same signal.
  • the first terminal may also include a larger number of ports, and the signals may be transmitted between the ports by time division multiplexing or frequency division multiplexing.
  • the third indication information may be used to indicate that the first port of the first terminal sends the at least one of the time domain resource location and the frequency domain resource location of the first signal, and may further indicate that the second port of the first terminal sends the third port. At least one of a time domain resource location and a frequency domain resource location of the signal.
  • FIG. 7 is a schematic diagram of signals transmitted by four ports of the first terminal in a time division multiplex manner.
  • the target resource may include four different time domain resources, and the terminal may send the signal by using the first port on the first time domain resource and using the second port on the second time domain resource.
  • the signal uses a third port to transmit the signal on the third time domain resource and a fourth port to transmit the signal on the fourth time domain resource.
  • the access network device may determine the DOA of the first port of the first terminal according to the signal on the first time domain resource, and determine the DOA of the second port of the first terminal according to the signal on the second time domain resource. Determining, by the signal on the third time domain resource, the DOA of the third port of the first terminal, and determining the DOA of the fourth port of the first terminal according to the signal on the fourth time domain resource.
  • FIG. 8 is a schematic diagram of signals transmitted by four ports of the first terminal in a frequency division multiplexing manner.
  • the target resource may include four different frequency domain resources, and the terminal may use the first port to send a signal on the first frequency domain resource and the second port on the second frequency domain resource.
  • the signal is sent, the third port is used to transmit the signal on the third frequency domain resource, and the fourth port is used to transmit the signal on the fourth frequency domain resource.
  • the access network device may determine the DOA of the first port of the first terminal according to the signal on the first frequency domain resource, and determine the DOA of the second port of the first terminal according to the signal on the second frequency domain resource. Determining a DOA of the third port of the first terminal according to the signal on the third frequency domain resource, and determining a DOA of the fourth port of the first terminal according to the signal on the fourth frequency domain resource.
  • the method shown in FIG. 2 may further include: the access network device receiving the fourth signal sent by the second terminal by using the fourth antenna subset; and determining, by the access network device, the second terminal sending the signal according to the fourth signal a direction of arrival, wherein the fourth signal and the first signal are transmitted in at least one of a time division multiplexing manner and a frequency division multiplexing manner.
  • the access network device can receive signals transmitted by different terminals through time division multiplexing or frequency division multiplexing, and determine the DOA of each terminal according to the signal sent by each terminal, thereby improving the communication efficiency.
  • the method shown in FIG. 2 may further include: determining, by the access network device, a beam that communicates with the first terminal according to the first direction of arrival.
  • determining, by the access network device, the beam that is in communication with the first terminal may include: the access network device determining an analog beam weight that can communicate with the first terminal.
  • the access network device may determine the beam that communicates with the first terminal according to the second direction of arrival. At this time, since the second direction of arrival is more accurate than the first direction of arrival, a beam having a higher communication quality is determined, so that communication quality can be improved.
  • the corresponding beam can be determined according to the DOA.
  • the method shown in FIG. 2 may further include: the access network device transmits a signal by means of beam scanning in a downlink subframe; and the access network device receives beam improvement information or beam state information sent by the first terminal; The device selects a beam that communicates with the first terminal according to the beam improvement information or beam state information.
  • the first indication information is sent by the access network device to the first terminal, where the access network device sends the first indication information to the first terminal when the access network device determines that the selected beam does not meet the preset communication condition.
  • the access network device may send the first indication information (may also send the second indication information or the third indication information) to the first terminal when the beam selected by the traditional beam scanning method does not meet the communication condition. So that the access network device can perform the above corresponding method, determine the direction of arrival of the signal of the first terminal, and determine the beam that communicates with the first terminal according to the direction of arrival.
  • the access network device can directly communicate with the first terminal by using the beam if the beam selected by the access network device according to the beam improvement information or the beam state information satisfies the communication condition.
  • FIG. 9 is a schematic flowchart of a method for determining a DOA according to an embodiment of the present application. It should be understood that FIG. 9 illustrates steps or operations of a method for determining a DOA, but these steps or operations are merely examples, and other embodiments of the present application may also perform other operations or variations of the various operations in FIG.
  • the terminal receives the first indication information sent by the access network device, where the first indication information is used to indicate that the terminal sends the first signal received by the first antenna subset of the access network device, where the first signal is used by the access network device to determine The DOA of the signal transmitted by the terminal, the number of antennas in the first antenna subset is less than or equal to the number of radio links of the access network device.
  • the terminal sends the first signal according to the first indication information.
  • the terminal may send the first signal to the access network device according to the first indication information sent by the access network device, so that the access network device can determine the DOA of the signal sent by the terminal according to the first signal, thereby improving Determine the flexibility of the DOA of the signal of the terminal.
  • the first signal may be a pilot signal.
  • the pilot signal may be a pilot signal that is specifically sent by the terminal for determining, by the access network device, the DOA of the terminal to send a signal.
  • the terminal may also send the first signal to the access network device according to its own needs, without sending the first signal according to the first indication information.
  • the method shown in FIG. 9 may further include: the terminal receiving the second indication information sent by the access network device, where the second indication information is used to instruct the terminal to send the target subframe of the first signal.
  • the sending, by the terminal, the first signal according to the first indication information may include: the terminal transmitting the first signal in the target subframe according to the first indication information.
  • the terminal sends the first signal to the access network device in the target subframe according to the second indication information, so that the flexibility of the terminal to send the first signal can be improved, thereby improving communication flexibility.
  • the method shown in FIG. 9 may further include: the terminal receiving the third indication information sent by the access network device, where the third indication information is used to instruct the terminal to send the following at least one location of the first signal: a time domain resource location or frequency Domain resource location.
  • the sending, by the terminal, the first signal according to the first indication information may include: the terminal sending the first signal in the at least one location according to the first indication information.
  • the terminal sends the first signal to the access network device according to the time domain resource location or the frequency domain resource location indicated by the third indication information, or according to the time domain resource location and the frequency domain resource location indicated by the third indication information, so that the time can be improved.
  • the terminal sends the first signal according to the first indication information, which may include: the terminal uses at least one of a time division multiplexing manner and a frequency division multiplexing manner according to the first indication information, and the terminal passes through the terminal.
  • the first port transmits the first signal and the second signal is transmitted through the second port of the terminal.
  • the first signal is used to determine the DOA of the signal sent by the first port
  • the second signal is used to determine the DOA of the signal sent by the second port.
  • the terminal sends a signal to the access network device through multiple ports in at least one of a time division multiplexing mode and a frequency division multiplexing mode, so that the access network device can determine the direction of the signal of each port, that is, the terminal can Determine a more accurate direction of arrival.
  • the terminal sends the first signal according to the first indication information, which may include: at least one of a time division multiplexing manner and a frequency division multiplexing manner with the other terminal according to the first indication information, Send the first signal.
  • the first indication information may include: at least one of a time division multiplexing manner and a frequency division multiplexing manner with the other terminal according to the first indication information, Send the first signal.
  • the terminal and the other terminal send a signal to the access network device in at least one of a time division multiplexing manner and a frequency division multiplexing manner, so that the access network device can determine the direction of the signal of the multiple terminals, thereby Improve resource utilization.
  • the terminal in the method shown in FIG. 9 may be the first terminal in the method shown in FIG. 2. Therefore, the technical features related to the first terminal in the method shown in FIG. 2 are equally applicable to the terminal in the method shown in FIG. For the sake of brevity, it will not be repeated here.
  • FIG. 10 is a schematic frame of an access network device according to an embodiment of the present application. It should be understood that the access network device 1000 illustrated in FIG. 10 is only an example, and the access network device in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 10, or It is not intended to include all of the modules in Figure 10.
  • the receiving module 1010 is configured to receive, by using the first antenna subset, the first signal sent by the first terminal, where the number of antennas in the first antenna subset is less than or equal to the number of radio frequency links of the access network device.
  • the processing module 1020 is configured to determine, according to the first signal, a first direction of arrival of the signal sent by the first terminal.
  • the access network device receives the first signal sent by the first terminal by using the first antenna subset, and the number of antennas in the first antenna subset is less than or equal to the number of the RF links, so the first signal received by the access network device
  • the dimension is less than or equal to the dimension of the RF link, so the access network device may not need to use a more complex algorithm such as a compressed sensing algorithm to determine the channel information, but may directly determine the signal received by the antenna in the first antenna subset.
  • the DOA can thus reduce the computational complexity of the access network device.
  • the access network device may further include a sending module 1030, configured to send the first indication information to the first terminal, where the first indication information is used to instruct the first terminal to send the first signal.
  • a sending module 1030 configured to send the first indication information to the first terminal, where the first indication information is used to instruct the first terminal to send the first signal.
  • the sending module 1030 is configured to send the second indication information to the first terminal, where the second indication information is used to indicate that the first terminal sends the target subframe of the first signal.
  • the receiving module is specifically configured to receive the first signal by using the first antenna subset in the target subframe.
  • the sending module 1030 is configured to send the third indication information to the first terminal, where the third indication information is used to indicate that the first terminal sends the following at least one location of the first signal: Domain resource location and frequency domain resource location.
  • the receiving module is further configured to receive, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to the radio frequency link of the access network device. Quantity.
  • the processing module is further configured to determine a second direction of arrival of the signal sent by the first terminal according to the second signal and the first direction of arrival.
  • the receiving module is further configured to receive, by using the second antenna subset, the second signal sent by the first terminal, where the number of antennas in the second antenna subset is less than or equal to the radio frequency link of the access network device.
  • Quantity The processing module is specifically configured to determine, according to the first signal and the second signal, the first direction of arrival of the signal sent by the first terminal.
  • the first terminal may include a first port and a second port.
  • the receiving module is specifically configured to receive, by using the first antenna subset, the first signal sent by the first port of the first terminal.
  • the processing module is specifically configured to determine, according to the first signal, a first direction of arrival of the first port sending signal.
  • the receiving module is further configured to receive, by using a third antenna subset, a third signal sent by the second port of the first terminal, where the first signal and the third signal are time division multiplexed and frequency
  • the sub-multiplexing method transmits at least one of the modes.
  • the processing module is further configured to determine a direction of arrival of the second port transmission signal according to the third signal.
  • the receiving module is further configured to receive, by using the fourth antenna subset, the fourth signal sent by the second terminal, where the processing module is further configured to determine, according to the fourth signal, that the second terminal sends The direction of arrival of the signal.
  • the fourth signal and the first signal are sent in at least one of a time division multiplexing manner and a frequency division multiplexing manner.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application. It should be understood that the terminal 1100 shown in FIG. 11 is only an example, and the terminal in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 11, or not included in FIG. All modules.
  • the receiving module 1110 is configured to receive first indication information that is sent by the access network device, where the first indication information is used to indicate that the terminal sends the first signal received by the first antenna subset of the access network device, where The first signal is used by the access network device to determine a DOA of the terminal to send a signal, where the number of antennas in the first antenna subset is less than or equal to the number of radio link links of the access network device.
  • the sending module 1120 is configured to send the first signal according to the first indication information.
  • the terminal may send the first signal to the access network device according to the first indication information sent by the access network device, so that the access network device may determine the DOA of the signal sent by the terminal according to the first signal, thereby improving the determining the terminal signal.
  • the flexibility of the DOA may be used to determine the DOA of the signal sent by the terminal according to the first signal, thereby improving the determining the terminal signal.
  • the receiving module is further configured to receive second indication information that is sent by the access network device, where the second indication information is used to instruct the terminal to send a target subframe of the first signal.
  • the sending module is specifically configured to send the first signal in the target subframe according to the first indication information.
  • the receiving module is further configured to receive the third indication information that is sent by the access network device, where the third indication information is used to indicate that the terminal sends the following at least one location of the first signal. : Time domain resource location or frequency domain resource location.
  • the processing module is specifically configured to send the first signal in the at least one location according to the first indication information.
  • the sending module is specifically configured to send, according to the first indication information, the first port by using the first port of the terminal by using at least one of a time division multiplexing manner and a frequency division multiplexing manner. And transmitting a second signal through the second port of the terminal.
  • the first signal is used to determine a DOA of the first port transmission signal
  • the second signal is used to determine a DOA of a signal sent by the second port.
  • the sending module is specifically configured to send, according to the first indication information, the first signal by using at least one of a time division multiplexing manner and a frequency division multiplexing manner with another terminal.
  • FIG. 12 is a schematic structural diagram of an access network device according to another embodiment of the present application. It should be understood that the access network device 1200 shown in FIG. 12 is only an example, and the access network device in the embodiment of the present application may further include other modules or units, or include modules similar in function to the respective modules in FIG. 12, or It is not intended to include all of the modules in Figure 12.
  • the receiver 1220 can be used to implement the operations or steps that the receiving module 1010 in FIG. 10 can implement.
  • the processor 1210 can be used to implement the operations or steps that the processing module 1020 in FIG. 10 can implement.
  • the transmitter 1230 can be used. The operations or steps that can be implemented by the transmitting module 1030 in FIG. 10 are implemented. For the sake of brevity, it will not be repeated here.
  • FIG. 13 is a schematic structural diagram of a terminal according to another embodiment of the present application. It should be understood that the terminal 1300 shown in FIG. 13 is only an example, and the terminal 1300 of the embodiment of the present application may further include other modules or units, or include modules similar to those of the modules in FIG. 13, or not including FIG. All modules in .
  • the processor 1210 can be used to implement the operations or steps that the receiving module 1110 in FIG. 11 can implement.
  • the transmitter 1330 can be used to implement the operations that the sending module 1120 in FIG. 11 can implement. Or steps. For the sake of brevity, it will not be repeated here.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé de détermination de DOA, un procédé devant être utilisé dans une détermination de DOA, un dispositif de réseau d'accès, et un terminal. Le procédé comprend les étapes suivantes : le dispositif de réseau d'accès reçoit, au moyen d'un premier sous-ensemble d'antennes, un premier signal envoyé par un premier terminal, le nombre d'antennes du premier sous-ensemble d'antennes étant inférieur ou égal au nombre de liaisons radiofréquence du dispositif de réseau d'accès ; et le dispositif de réseau d'accès détermine, d'après le premier signal, une première direction d'arrivée (DOA) du premier terminal envoyant le signal. Des modes de réalisation de la présente invention concernent un procédé de détermination de DOA, un procédé devant être utilisé dans une détermination de DOA, un dispositif de réseau d'accès, et un terminal, aptes à réduire une complexité de calcul de dispositifs de réseau d'accès.
PCT/CN2018/075596 2017-02-15 2018-02-07 Procédé de détermination de doa, procédé devant être utilisé dans une détermination de doa, dispositif de réseau d'accès, et terminal WO2018149346A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710081358.5 2017-02-15
CN201710081358.5A CN108430090B (zh) 2017-02-15 2017-02-15 确定和用于确定doa的方法以及接入网设备和终端

Publications (1)

Publication Number Publication Date
WO2018149346A1 true WO2018149346A1 (fr) 2018-08-23

Family

ID=63155411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/075596 WO2018149346A1 (fr) 2017-02-15 2018-02-07 Procédé de détermination de doa, procédé devant être utilisé dans une détermination de doa, dispositif de réseau d'accès, et terminal

Country Status (2)

Country Link
CN (1) CN108430090B (fr)
WO (1) WO2018149346A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111182561A (zh) * 2018-11-12 2020-05-19 中兴通讯股份有限公司 一种天线阵列的控制方法及系统
CN111830460B (zh) * 2020-07-23 2022-11-01 哈尔滨工业大学（威海） 基于序贯music的doa估计方法
CN115696359A (zh) * 2021-07-31 2023-02-03 华为技术有限公司 一种信道信息测量方法及通信装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1761171A (zh) * 2004-10-15 2006-04-19 北京大学 基于达波信号方向估计的信号处理系统和方法
CN101615943A (zh) * 2008-06-27 2009-12-30 中兴通讯股份有限公司 智能天线多子阵列系统的波达角估计方法
US20100066635A1 (en) * 2006-11-30 2010-03-18 Ulf Lindgren Microwave sparse array antenna arrangement
CN102271352A (zh) * 2010-06-03 2011-12-07 普天信息技术研究院有限公司 一种中继节点与ue间的下行数据传输方法
CN102445679A (zh) * 2011-09-22 2012-05-09 成都中安频谱科技有限公司 三信道空间谱估计测向系统的测向方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1761171A (zh) * 2004-10-15 2006-04-19 北京大学 基于达波信号方向估计的信号处理系统和方法
US20100066635A1 (en) * 2006-11-30 2010-03-18 Ulf Lindgren Microwave sparse array antenna arrangement
CN101615943A (zh) * 2008-06-27 2009-12-30 中兴通讯股份有限公司 智能天线多子阵列系统的波达角估计方法
CN102271352A (zh) * 2010-06-03 2011-12-07 普天信息技术研究院有限公司 一种中继节点与ue间的下行数据传输方法
CN102445679A (zh) * 2011-09-22 2012-05-09 成都中安频谱科技有限公司 三信道空间谱估计测向系统的测向方法

Also Published As

Publication number Publication date
CN108430090B (zh) 2020-07-28
CN108430090A (zh) 2018-08-21

Similar Documents

Publication Publication Date Title
JP6670411B2 (ja) Ｍｉｍｏトレーニング方法及び無線装置
EP3566332B1 (fr) Configuration de balayage de faisceau
WO2020030050A1 (fr) Procédé et appareil d'apprentissage d'un panneau d'antenne
WO2020088571A1 (fr) Procédé, appareil et dispositif de transmission d'informations
EP2582068A2 (fr) Apprentissage de formation de faisceaux dans un système de communication sans fil utilisant une antenne directionnelle
US11201651B2 (en) Electronic apparatus and server in wireless communication system, and wireless communication method
CN110278016B (zh) 一种信号传输方法和网络设备以及终端设备
WO2018095305A1 (fr) Procédé et appareil d'apprentissage de faisceau
JP2019509660A5 (fr)
US11626911B2 (en) Flexible beamforming control
WO2018149346A1 (fr) Procédé de détermination de doa, procédé devant être utilisé dans une détermination de doa, dispositif de réseau d'accès, et terminal
US11646770B2 (en) Method and apparatus for millimeter-wave MIMO mode selection
JP2021530161A (ja) 通信方法及び通信機器
CN106464329B (zh) 对定向天线进行导向的装置、系统和方法
US20210273702A1 (en) Uplink beam training method, terminal device, and network side device
EP3837773B1 (fr) Procédé et système de gestion des interférences dans des systèmes multi trp
CN116601883A (zh) 扩展类型ii端口选择码本以支持较高秩传输的方法
CN115699586A (zh) 全双工
US20240089885A1 (en) Beam time synchronization method, terminal device, and access network device
US20230403065A1 (en) Communication using a dual polarized antenna array
WO2022205177A1 (fr) Procédés et appareil de transmission ul multi-trp
WO2023088114A1 (fr) Procédé de récupération de faisceau, procédé de détection de défaillance de faisceau et appareil associé
WO2022242489A1 (fr) Procédé de mise en forme de faisceaux et appareil associé
CN116193485A (zh) 通信方法以及相关装置
CN117376938A (zh) 一种天线管理的方法、设备及通信系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18755104

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18755104

Country of ref document: EP

Kind code of ref document: A1