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WO2025087003A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2025087003A1
WO2025087003A1 PCT/CN2024/122007 CN2024122007W WO2025087003A1 WO 2025087003 A1 WO2025087003 A1 WO 2025087003A1 CN 2024122007 W CN2024122007 W CN 2024122007W WO 2025087003 A1 WO2025087003 A1 WO 2025087003A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency domain
information
domain unit
domain units
network device
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/122007
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English (en)
Chinese (zh)
Inventor
肖朝昆
李成
秦启波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2025087003A1 publication Critical patent/WO2025087003A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams

Definitions

  • the present application relates to the field of communication technology, and in particular to a communication method and device.
  • AoA positioning technology In communication technology, in order to locate terminal devices, positioning technologies are proposed, such as angle of arrival (AoA) positioning technology.
  • AoA positioning technology requires beam scanning alignment, which makes the beam overhead large.
  • the present application provides a communication method and device, which can reduce beam overhead and further improve positioning accuracy.
  • a communication method which can be executed by a terminal device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal device, or by a logical node, a logical module, or software that can realize all or part of the functions of the terminal device.
  • a reference signal from a network device can be received through a first beam on M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units.
  • the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam.
  • Different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; thereby, the first information can be sent to the network device, and the first information is used to determine the first frequency domain unit with the largest energy information among the M frequency domain units. Further, after receiving the reference signal from the network device through the first beam, the energy of the reference signal on the M frequency domain units can be measured respectively to obtain the energy information of each frequency domain unit in the M frequency domain units, so that the first information can be sent to the network device.
  • the terminal device can receive the reference signal from the network device through the first beam on M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the terminal device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, so that the first information used to determine the first frequency domain unit (that is, the frequency domain unit with the largest energy information in the M frequency domain units) can be sent to the network device, so that the network device can send indication information for determining the position of the terminal device to the positioning server based on the first frequency domain unit.
  • the first information used to determine the first frequency domain unit that is, the frequency domain unit with the largest energy information in the M frequency domain units
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the method further includes: receiving second information from a network device, where the second information is used to determine M frequency domain units.
  • a communication method which can be executed by a terminal device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal device, or by a logical node, a logical module, or software that can realize all or part of the terminal device functions.
  • a module such as a processor, a chip, or a chip system, etc.
  • a second information from a network device can be received, and the second information is used to determine M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, and different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; so that a reference signal from the network device can be received through the first beam on the M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units.
  • the first information can be sent to the network device, and the first information is used to determine the first frequency domain unit with the largest energy information among the M frequency domain units.
  • the energy of the reference signal on the M frequency domain units can be measured respectively to obtain the energy information of each frequency domain unit in the M frequency domain units, so that the first information can be sent to the network device.
  • the terminal device can receive the reference signal from the network device through the first beam on the M frequency domain units indicated by the network device. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the terminal device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, so that the first information for determining the first frequency domain unit (that is, the frequency domain unit with the largest energy information in the M frequency domain units) can be sent to the network device, thereby enabling the network device to determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal.
  • a frequency domain unit sends indication information for determining the location of the terminal device to the positioning server.
  • this realizes positioning based on the energy information of the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the first information includes an index of the first frequency domain unit.
  • the terminal device indicates the index of the first frequency domain unit to the network device, which not only allows the network device to obtain the frequency domain unit with the largest energy information among the M frequency domain units, but also saves signaling overhead.
  • the first information includes energy information of each frequency domain unit in the M frequency domain units, and the energy information of each frequency domain unit in the M frequency domain units is used to determine the first frequency domain unit. That is, after receiving the first information, the network device can determine the first frequency domain unit based on the energy information of each frequency domain unit in the M frequency domain units.
  • the energy information of each frequency domain unit in the M frequency domain units includes an energy value on N transmission paths, where the transmission path is a transmission path between a terminal device and a network device, and N is an integer greater than or equal to 1.
  • the energy information of each frequency domain unit in the M frequency domain units includes the energy value on N transmission paths, that is, the first frequency domain unit is related to the energy value of the frequency domain unit level on the transmission path, which can make the first frequency domain unit more accurate, and therefore, positioning based on the frequency of the first frequency domain unit can also be more accurate.
  • the method further includes: receiving third information from the positioning server, the third information being used to instruct the terminal device to report frequency domain unit-level energy information.
  • a communication method which can be executed by a network device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the network device, or by a logical node, a logical module, or software that can realize all or part of the network device functions.
  • a reference signal can be sent to a terminal device through a first beam on M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units.
  • the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam.
  • Different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; thereby, the first information from the terminal device can be received, and the first information is used to determine the first frequency domain unit with the largest energy information in the M frequency domain units.
  • an indication information can be sent to a positioning server, and the indication information is used to determine the location of the terminal device, and the indication information is determined based on the first frequency domain unit. Further, after receiving the first information from the terminal device, the indication information can be determined based on the first frequency domain unit, so that the indication information can be sent to the positioning server.
  • the network device can send a reference signal to the terminal device through the first beam on M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the terminal device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, so that the first information used to determine the first frequency domain unit (that is, the frequency domain unit with the largest energy information in the M frequency domain units) can be sent to the network device, so that the network device can send indication information for determining the position of the terminal device to the positioning server based on the first frequency domain unit.
  • the first information used to determine the first frequency domain unit that is, the frequency domain unit with the largest energy information in the M frequency domain units
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the method also includes: sending second information to the terminal device, where the second information is used to determine M frequency domain units.
  • a communication method is provided, which can be executed by a network device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the network device, or by a logical node, a logical module, or software that can realize all or part of the network device functions.
  • a module such as a processor, a chip, or a chip system, etc.
  • a second information can be sent to a terminal device, and the second information is used to determine M frequency domain units; the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, and different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; thus, a reference signal can be sent to the terminal device through the first beam on the M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units; and then the first information from the terminal device can be received, and the first information is used to determine the first frequency domain unit with the largest energy information in the M frequency domain units.
  • an indication information can be sent to a positioning server, and the indication information is used to determine the location of the terminal device, and the indication information is determined based on the first frequency domain unit. Furthermore, after receiving the first information from the terminal device, the indication information may be determined based on the first frequency domain unit, so that the indication information may be sent to the positioning server.
  • the network device can indicate M frequency domain units to the terminal device, so that the terminal device receives the reference signal from the network device through the first beam on the M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the terminal device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, and thus can send the first information for determining the first frequency domain unit (i.e., the frequency domain unit with the largest energy information in the M frequency domain units) to the network device. This enables the network device to send indication information for determining the location of the terminal device to the positioning server based on the first frequency domain unit.
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the first information includes an index of the first frequency domain unit.
  • the network device can obtain the frequency domain unit with the largest energy information among the M frequency domain units through the index of the first frequency domain unit, which can save signaling overhead.
  • the first information includes energy information of each frequency domain unit in the M frequency domain units, and the energy information of each frequency domain unit in the M frequency domain units is used to determine the first frequency domain unit. That is, after receiving the first information, the network device can determine the first frequency domain unit based on the energy information of each frequency domain unit in the M frequency domain units.
  • the energy information of each of the M frequency domain units includes energy values on N transmission paths, where the transmission path is a transmission path between a terminal device and a network device, and N is an integer greater than or equal to 1; before sending indication information to the positioning server, the method also includes: determining the maximum energy value of each of the M frequency domain units on the transmission path; and determining the first frequency domain unit based on the maximum energy value of each of the M frequency domain units on the transmission path.
  • the network device can determine the maximum energy value of each frequency domain unit in the M frequency domain units on the transmission path; based on the maximum energy value of each frequency domain unit in the M frequency domain units on the transmission path, the first frequency domain unit is determined.
  • the first frequency domain unit is related to the energy value of the frequency domain unit level on the transmission path, which can make the first frequency domain unit more accurate, so positioning based on the frequency of the first frequency domain unit can also be more accurate.
  • the indication information is determined based on the first frequency domain unit, including: the indication information is determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion; or, the indication information is determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value, and the first angle value is an angle value in the angular range of the first beam dispersion.
  • the indication information can be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion; or, the indication information can be determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information for determining the position of the terminal device can be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion, or the indication information can be determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information includes a directional angle corresponding to the first frequency domain unit.
  • the network device can indicate the directional angle corresponding to the first frequency domain unit to the positioning server, which reduces the process of calculating the directional angle by the positioning server, thereby speeding up the positioning process.
  • the indication information includes at least one of the following: the frequency of the first frequency domain unit, the angular range of the first beam dispersion; or, the indication information includes at least one of the following: the frequency of the first frequency domain unit, the width of the first beam, and the first angle value, and the first angle value is an angle value within the angular range of the first beam dispersion.
  • the indication information for determining the position of the terminal device includes the frequency of the first frequency domain unit, so that the positioning server can determine the position of the terminal device based on the frequency of the first frequency domain unit.
  • This realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the first angle value is the angle value corresponding to the center frequency of the frequency band where the reference signal is located; or, the first angle value is the minimum angle value in the angle range of the first beam dispersion; or, the first angle value is the maximum angle value in the angle range of the first beam dispersion.
  • a communication method is provided, which can be executed by a terminal device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal device, or by a logical node, a logical module, or software that can realize all or part of the functions of the terminal device.
  • a module such as a processor, a chip, or a chip system, etc.
  • a reference signal can be sent to a network device through a first beam on M frequency domain units; wherein the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, and different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the terminal device can send a reference signal to the network device through the first beam on M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the network device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, and determine the first frequency domain unit (i.e., the frequency domain unit with the largest energy information among the M frequency domain units). Frequency domain unit), so that the network device can send indication information for determining the position of the terminal device to the positioning server based on the first frequency domain unit.
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the method also includes: receiving first information from a network device, the first information being used to determine M frequency domain units.
  • a communication method which can be executed by a terminal device, or by a module (such as a processor, a chip, or a chip system, etc.) applied to the terminal device, or by a logical node, a logical module, or software that can realize all or part of the functions of the terminal device.
  • a first information from a network device can be received, and the first information is used to determine M frequency domain units, and the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam.
  • a reference signal can be sent to the network device through the first beam on the M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units.
  • the terminal device can send a reference signal to the network device through the first beam on the M frequency domain units indicated by the network device. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the network device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, and determine the first frequency domain unit (that is, the frequency domain unit with the largest energy information in the M frequency domain units), so that the network device can send indication information for determining the position of the terminal device to the positioning server based on the first frequency domain unit.
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the terminal device can send a reference signal to the network device through the first beam on M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the network device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, and determine the first frequency domain unit (that is, the frequency domain unit with the largest energy information in the M frequency domain units), so that the network device can send indication information for determining the position of the terminal device to the positioning server based on the first frequency domain unit.
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • Different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; thus, a reference signal from the terminal device can be received through the first beam on the M frequency domain units, and the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units.
  • an indication information can be sent to a positioning server, and the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit with the largest energy information among the M frequency domain units.
  • the energy of the reference signal in M frequency domain units can be measured respectively to obtain the energy information of each of the M frequency domain units, so that the indication information can be determined based on the first frequency domain unit and sent to the positioning server.
  • the network device can indicate M frequency domain units to the terminal device, so that the terminal device can send a reference signal to the network device through the first beam on the M frequency domain units. Because different frequency domain units in the M frequency domain units have different pointing angles under the first beam, the network device can determine the energy information of each frequency domain unit in the M frequency domain units based on the reference signal, and determine The first frequency domain unit (i.e., the frequency domain unit with the largest energy information among the M frequency domain units) enables the network device to send indication information for determining the location of the terminal device to the positioning server based on the first frequency domain unit.
  • the first frequency domain unit i.e., the frequency domain unit with the largest energy information among the M frequency domain units
  • this realizes positioning based on the energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the energy information of each of the M frequency domain units includes energy values on N transmission paths, where the transmission path is a transmission path between a terminal device and a network device, and N is an integer greater than or equal to 1; before sending indication information to the positioning server, the method also includes: determining the maximum energy value of each of the M frequency domain units on the transmission path; and determining the first frequency domain unit based on the maximum energy value of each of the M frequency domain units on the transmission path.
  • the indication information is determined based on the first frequency domain unit with the largest energy information among the M frequency domain units, including: the indication information is determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion; or, the indication information is determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value, and the first angle value is an angle value in the angular range of the first beam dispersion.
  • the indication information can be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion; or, the indication information can be determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information for determining the position of the terminal device can be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion, or the indication information can be determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information includes a directional angle corresponding to the first frequency domain unit.
  • the network device can indicate the directional angle corresponding to the first frequency domain unit to the positioning server, which reduces the process of calculating the directional angle by the positioning server, thereby speeding up the positioning process.
  • the indication information includes at least one of the following: the frequency of the first frequency domain unit, the angular range of the first beam dispersion; or, the indication information includes at least one of the following: the frequency of the first frequency domain unit, the width of the first beam, the first angle value.
  • the indication information for determining the position of the terminal device includes the frequency of the first frequency domain unit, so that the positioning server can determine the position of the terminal device based on the frequency of the first frequency domain unit.
  • This realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the first angle value is the angle value corresponding to the center frequency of the frequency band where the reference signal is located; or, the first angle value is the minimum angle value in the angle range of the first beam dispersion; or, the first angle value is the maximum angle value in the angle range of the first beam dispersion.
  • the method also includes: receiving second information from a positioning server, the second information being used to instruct the network device to determine energy information at a frequency domain unit level.
  • the second information is used to instruct the network device to determine energy information at the frequency domain unit level, including: the second information is used to instruct the network device to determine the energy value at the frequency domain unit level on the transmission path between the terminal device and the network device.
  • a communication method which can be executed by a positioning server, or by a module (such as a processor, a chip, or a chip system, etc.) applied to a positioning server, or by a logical node, a logical module, or software that can implement all or part of the positioning server functions.
  • indication information from a network device can be received, the indication information is used to determine the location of the terminal device, and the indication information is determined based on a first frequency domain unit, the first frequency domain unit is a frequency domain unit with the largest energy information among M frequency domain units, and M is an integer greater than or equal to 2.
  • the positioning server can receive indication information from the network device, the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit.
  • this realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the indication information is determined based on the first frequency domain unit, including: the indication information is determined based on the frequency of the first frequency domain unit. or, the indication information is determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value, and the first angle value is an angle value in the angle range of the first beam dispersion.
  • the indication information for determining the position of the terminal device can be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion, or the indication information can be determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information includes a directional angle corresponding to the first frequency domain unit.
  • the positioning server can obtain the directional angle corresponding to the first frequency domain unit, which reduces the process of calculating the directional angle by the positioning server, thereby speeding up the positioning process.
  • the indication information includes at least one of the following items: the frequency of the first frequency domain unit, the angle range of the first beam dispersion; or, the indication information includes at least one of the following items: the frequency of the first frequency domain unit, the width of the first beam, and the first angle value, and the first angle value is an angle value within the angle range of the first beam dispersion.
  • the indication information for determining the position of the terminal device includes the frequency of the first frequency domain unit, so that the positioning server can determine the position of the terminal device based on the frequency of the first frequency domain unit.
  • This realizes positioning based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the first angle value is the angle value corresponding to the center frequency of the frequency band where the reference signal is located; or, the first angle value is the minimum angle value in the angle range of the first beam dispersion; or, the first angle value is the maximum angle value in the angle range of the first beam dispersion.
  • the method also includes: sending third information to the terminal device, the third information being used to instruct the terminal device to report energy information at the frequency domain unit level.
  • the method also includes: sending second information to the network device, the second information being used to instruct the network device to determine energy information at the frequency domain unit level.
  • the second information is used to instruct the network device to determine energy information at the frequency domain unit level, including: the second information is used to instruct the network device to determine the energy value at the frequency domain unit level on the transmission path between the terminal device and the network device.
  • a communication device comprising a unit or module for implementing any one of the methods described in any one of aspects 1 to 9.
  • the communication device may be a terminal device, a network device, or a positioning server, or a module (such as a processor, a chip, or a chip system) of the terminal device, the network device, or the positioning server, or a logical node, a logical module, or software that can implement all or part of the functions of the terminal device, the network device, or the positioning server.
  • a communication device in the eleventh aspect, includes at least one processor; wherein the at least one processor is used to execute any of the methods described in any of the first aspect to the ninth aspect.
  • the communication device can be a terminal device, a network device or a positioning server, or a module of a terminal device, a network device or a positioning server (such as a processor, a chip, or a chip system, etc.), or a logical node, a logical module or software that can implement all or part of the functions of a terminal device, a network device or a positioning server.
  • At least one processor can execute a computer program or instruction in a memory so that the above method is executed.
  • the memory can be included in the communication device or can be located outside the communication device.
  • the communication device may also include an interface.
  • a computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the computer executes any method as described in any one of aspects 1 to 9.
  • a computer program product comprising: a computer program code, when the computer program code is executed by a computer, the computer executes any method as described in any one of aspects one to nine.
  • a chip comprising at least one processor and an interface, wherein the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes any method described in any one of aspects one to nine.
  • FIG1 is a basic architecture of a communication system provided in an embodiment of the present application.
  • FIG2 is a schematic diagram of a specific possible network architecture applicable to an embodiment of the present application.
  • FIG3 is a flow chart of a communication method provided in an embodiment of the present application.
  • FIG4 is an antenna pattern provided in an embodiment of the present application.
  • FIG5 is a schematic diagram of different frequencies corresponding to different energy peaks provided in an embodiment of the present application.
  • FIG7 is a flow chart of another communication method provided in an embodiment of the present application.
  • FIG8 is a schematic diagram of a process based on downlink reference signal positioning provided in an embodiment of the present application.
  • FIG9 is a schematic diagram of a process based on uplink reference signal positioning provided in an embodiment of the present application.
  • FIG11 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.
  • references to "one embodiment” or “some embodiments” etc. described in the embodiments of the present application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • the technical solutions of the embodiments of the present application can be applied to the long term evolution (LTE) architecture, the fifth generation mobile communication technology (5G), wireless local area network (WLAN) system, vehicle to everything (V2X) communication system, LTE-vehicle (LTE-V), vehicle to vehicle (V2V), vehicle networking, machine type communications (MTC), etc.
  • LTE long term evolution
  • 5G fifth generation mobile communication technology
  • WLAN wireless local area network
  • V2X vehicle to everything
  • LTE-V LTE-vehicle
  • V2V vehicle to vehicle
  • vehicle networking machine type communications
  • MTC machine type communications
  • the communication system provided by the present application may include one or more network devices, one or more terminal devices, and a positioning server.
  • the terminal device 120 is connected to the RAN node 110 in a wireless manner, and the RAN node 110 is connected to the core network 200 in a wireless or wired manner.
  • the core network device in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or may be the same physical device that integrates the logical functions of the core network device and the logical functions of the RAN node.
  • Terminal devices and terminal devices as well as RAN nodes and RAN nodes may be connected to each other via wired or wireless means.
  • RAN100 may be a cellular system related to the 3rd Generation Partnership Project (3GPP), for example, LTE, 5G mobile communication system, or an evolution system after 5G (for example, a 6G mobile communication system).
  • 3GPP 3rd Generation Partnership Project
  • RAN100 may also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (cloud radio access network, CRAN), etc.
  • RAN100 may also be a communication system that integrates two or more of the above systems.
  • the core network device may include a positioning server.
  • the core network device may also include an access and mobility management device.
  • the positioning server may communicate with the network device through the access and mobility management device.
  • Terminal equipment is an entity on the user side that is used to receive signals, or send signals, or both receive and send signals. Terminal equipment is used to provide one or more of voice services and data connectivity services to users. Terminal equipment can be a device that includes wireless transceiver functions and can cooperate with network equipment to provide communication services to users. Specifically, terminal equipment can refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication equipment, user agent, user device or road side unit (RSU).
  • UE user equipment
  • RSU road side unit
  • the terminal device can also be a drone, an Internet of Things (IoT) device, a station (ST) in a wireless local area network (WLAN), a cellular phone, a smart phone, a cordless phone, a wireless data card, a tablet computer, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a laptop computer, a machine type communication (MTC) device, or a wireless communication device.
  • IoT Internet of Things
  • ST wireless local area network
  • WLAN wireless local area network
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • MTC machine type communication
  • the terminal device can also be a terminal in 5G system or a terminal in next generation communication system, which is not limited in the embodiments of the present application.
  • the embodiments of the present application do not limit the device form of the terminal device.
  • the device for realizing the function of the terminal device can be the terminal device; it can also be a device that can support the terminal device to realize the function, such as a chip system.
  • the device can be installed in the terminal device or used in combination with the terminal device.
  • the chip system can be composed of chips, or it can include chips and other discrete devices.
  • a network device is an entity on the network side that is used to send signals, or receive signals, or both.
  • a network device can be a device deployed in a radio access network (RAN) to provide wireless communication functions for terminal devices.
  • RAN radio access network
  • the network device may be a device with base station functions, such as an evolved NodeB (eNodeB), a transmission and receiving point (TRP), a transmitting point (TP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, an integrated access and backhaul (IAB) node, a non-terrestrial network device in a non-terrestrial network (NTN), that is, a device that can be deployed on a high altitude platform or a satellite, etc.
  • the network device may be a transmission reception point (TRP), a base station, or various forms of control nodes. For example, a network controller, a wireless controller, etc.
  • the network device may be various forms of macro base stations, micro base stations (also called small stations) in heterogeneous network (HetNet) scenarios, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved nodeBs, or home node Bs, HNBs), baseband units (BBUs) and remote radio units (RRUs) in distributed base station scenarios, transmission points (TRPs), transmitting points (TPs), mobile switching centers, etc., and may also be antenna panels of base stations.
  • the control node may connect to multiple base stations and configure resources for multiple terminals covered by multiple base stations.
  • the names of devices with base station functions may be different.
  • it can be a gNB in 5G, or a network-side device in a network after 5G, or a network device in a future public land mobile (communication) network (public land mobile network, PLMN) network, or a device that performs base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, and vehicle network communication.
  • PLMN public land mobile network
  • M2M machine-to-machine
  • vehicle network communication This application does not limit the specific name of the network device.
  • the network device can also be an open access network (open RAN, O-RAN or ORAN), a baseband pool (BBU pool) under a cloud radio access network (cloud radio access network, CRAN) and RRU, etc.
  • open RAN open RAN, O-RAN or ORAN
  • BBU pool baseband pool
  • cloud radio access network cloud radio access network
  • CRAN cloud radio access network
  • RRU etc.
  • the network device may include a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU).
  • the CU and DU may be set separately, or may be included in the same network element, such as a baseband unit (BBU).
  • BBU baseband unit
  • the RU may be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU may be classified as a network device in an access network RAN, or the CU may be classified as a network device in a core network (CN), which is not limited here.
  • CN core network
  • CU or CU-CP and CU-UP
  • DU or RU may also have different names, but those skilled in the art can understand their meanings.
  • CU may also be called an open CU (openCU, O-CU)
  • DU may also be called an open DU (open DU, O-DU)
  • CU-CP may also be called an open CU-CP (open CU-CP, O-CU-CP)
  • CU-UP may also be called an open CU-UP (open CU-UP, O-CU-UP)
  • RU may also be called an open RU (open RU, O-RU).
  • CU, CU-CP, CU-UP, DU and RU are used as examples for description in this application.
  • Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.
  • the form of the network device is not limited.
  • the device for realizing the function of the network device can be the network device; or it can be a device that can support the network device to realize the function, such as a chip system.
  • the device can be installed in the network device or used in conjunction with the network device.
  • the positioning server is used to provide the interaction of the information required for positioning by selecting the corresponding positioning method according to the positioning accuracy requirements, latency requirements, etc., and selecting the corresponding communication protocol, and is used to provide other information required for positioning services, or positioning strategies.
  • the positioning server can be an evolved serving mobile location center (E-SMLC).
  • E-SMLC evolved serving mobile location center
  • 5G communications the positioning server can be a location management function (LMF) network element.
  • LMF location management function
  • future communications such as the 6th generation (6G) communications, the positioning server can still be an LMF network element, or have other names, and this application does not limit this.
  • the access and mobility management device is mainly used for the registration, mobility management, and tracking area update process of terminal devices in the mobile network.
  • the access and mobility management device terminates the non-access stratum (NAS) message, completes registration management, connection management, and reachability management, allocates the tracking area list (TAlist) and mobility management, and transparently routes the session management (SM) message to the session management network element.
  • the access and mobility management device can be an access and mobility management function (AMF) network element.
  • Namf is a service-based interface provided by the AMF network element.
  • the AMF network element can communicate with other network functions through Namf.
  • future communications such as the 6th generation (6G) communication, the access and mobility management device can still be an AMF network element, or have other names, which is not limited in this application.
  • FIG. 2 a specific possible network architecture diagram applicable to the embodiment of the present application is described in combination with Figure 2. As shown in Figure 2, it includes the above-mentioned UE, gNB (or ng-eNB), AMF network element and LMF network element.
  • the UE and ng-eNB can communicate through the LTE-Uu interface, and the UE and gNB can communicate through the new radio (newradio, NR)-Uu interface.
  • the gNB (or ng-eNB) may include multiple transmission nodes (transmit point, TP).
  • the gNB (or ng-eNB) may also include multiple reception nodes (reception point, RP).
  • the gNB (or ng-eNB) may include multiple transmission-reception nodes (transmit and reception point, TRP).
  • the gNB and ng-eNB can communicate through the Xn interface.
  • the gNB (or ng-eNB) and the AMF network element can communicate through the NG control plane (NG-C) interface.
  • the AMF network element can communicate through the NLs interface.
  • control plane and user plane of the LMF network element are E-SMLC and secure user plane positioning platform (SUPL location platform, SLP), which can realize the interaction of various types of information with gNB, ng-eNB, UE, etc.
  • SLP secure user plane positioning platform
  • network elements or functions shown in Figures 1 and 2 can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform).
  • a platform e.g., a cloud platform
  • the above network elements or functions can be implemented by one device, or by multiple devices, or can be a functional module in one device, which is not specifically limited in the embodiments of the present application.
  • "network element" can be omitted.
  • the LMF network element in the application embodiment has the same meaning as LMF.
  • the word “network element” is omitted just for the convenience of description. The rest are similar.
  • the frequency domain unit mentioned in this application may refer to a continuous resource in the frequency domain.
  • the frequency domain unit may be at least one subcarrier, or other frequency domain granularity, such as at least one resource element (RE), at least one resource block (RB), at least one resource block group (RBG), at least one sub-channel, at least one bandwidth part (BWP) or at least one carrier, etc.
  • RE resource element
  • RB resource block
  • RBG resource block group
  • BWP bandwidth part
  • a resource block can be a plurality of subcarriers that are continuous in the frequency domain, for example, a resource block can include 12 subcarriers, etc. Multiple resource blocks can constitute a resource block group.
  • a carrier is a continuous frequency range that complies with the system regulations. This frequency range can be determined by the center frequency of the carrier (referred to as the carrier frequency) and the bandwidth of the carrier.
  • a carrier can include one or more partial bandwidths.
  • a partial bandwidth can include one or more subchannels, and a subchannel includes multiple resource blocks.
  • a subchannel can also be called a subband.
  • the frequency domain unit index may be used to uniquely identify the frequency domain unit.
  • the frequency domain unit index may also have other names, such as the identification of the frequency domain unit, the number of the frequency domain unit, etc., which are not limited in the present application.
  • the energy information involved in this application is the result of measuring the energy of the reference signal, such as one or more of the reference signal received power (RSRP), reference signal received quality (RSRQ), received signal strength indicator (RSSI), and signal to interference plus noise ratio (SINR).
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • SINR signal to interference plus noise ratio
  • the reference signal can be a reference signal that can be used for positioning, which is divided into an uplink reference signal and a downlink reference signal.
  • the uplink reference signal can be a sounding reference signal (SRS) or other reference signals, such as a channel state information reference signal (CSI-RS).
  • the downlink reference signal can be a positioning reference signal (PRS) or other reference signals, such as a tracking reference signal (TRS), CSI-RS, etc.
  • PRS positioning reference signal
  • TRS tracking reference signal
  • the transmission path mentioned in this application can be called a propagation path, which can be divided into a non-line of sight (NLOS) path and a line of sight (LOS) path.
  • NLOS non-line of sight
  • LOS line of sight
  • the wireless signal When the direct path between the transmitter and receiver is blocked by an obstacle, the wireless signal reaches the receiver after reflection and diffraction.
  • the data measured by the receiver such as arrival time, time difference, incident angle, etc., will not correctly reflect the actual distance between the transmitter and the receiver.
  • This can be called NLOS.
  • the wireless signal does not reach the receiver directly from the transmitter, but reaches the receiver through reflection, scattering and diffraction of other objects.
  • the wireless signal transmission path is called NLOS path.
  • LOS line of sight
  • the transmission path of the wireless signal between the transmitter and the receiver is a straight line.
  • the wireless signal transmission path is called LOS path.
  • the sending end device may be a terminal device, and the receiving end device may be a network device.
  • the sending end device may be a network device, and the receiving end device may be a terminal device.
  • a beam can be a set of predefined beamforming weights in the context of codebook-based precoding, or a set of dynamically defined beamforming weights in the context of non-codebook-based precoding (e.g., eigen-based beamforming (EBB)).
  • a beam can also be a predefined set of phase shift preprocessors used to combine signals from an antenna array in the radio frequency (RF) domain.
  • RF radio frequency
  • a terminal device can rely on codebook-based precoding to transmit uplink signals or receive downlink signals
  • a network device can rely on non-codebook-based precoding to form certain radiation patterns to send downlink signals or receive uplink signals.
  • a transmitting device may transmit data to a receiving device via a transmitting beam, and a receiving device may receive data from the transmitting device via a receiving beam.
  • the transmitting beam and the receiving beam may be referred to as a beam pair, and these beams may have similar spatial domain characteristics, such as beam directions, and are referred to as spatially quasi-collocated (QCL).
  • QCL spatially quasi-collocated
  • most of the transmitted energy of the transmitting beam and most of the received energy of the receiving beam may be directed in similar but opposite directions. For example, in a two-dimensional plane, the transmitted energy of the transmitting beam and the received energy of the receiving beam may be directed 180 degrees relative to each other.
  • the present application provides a communication method to solve this problem.
  • the terminal device, network device and positioning server mentioned below may be the terminal device, network device and positioning server involved in Figure 1, respectively.
  • the message name between the network elements or the name of each parameter in the message in the following embodiment is only an example, and other names may also be used in the specific implementation, which is not specifically limited in the embodiments of the present application.
  • the processing performed by the single execution subject (terminal device or network device) shown in the embodiments of the present application may also be divided into executions by multiple execution subjects, and these execution subjects may be logically and/or physically separated.
  • the processing performed by the network device may be divided into executions by at least one of the CU, DU and RU.
  • a communication method is provided in an embodiment of the present application, which includes but is not limited to the following steps:
  • the terminal device receives a reference signal from a network device through a first beam on M frequency domain units.
  • the reference signal is used to determine energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the network device sends a reference signal to the terminal device through the first beam on the M frequency domain units.
  • the reference signal here may refer to a downlink reference signal, and the details may refer to the above related description, which will not be repeated here.
  • the first beam may refer to a receiving beam of a terminal device or a transmitting beam of a network device.
  • the terminal device may receive a reference signal from the network device through the receiving beam on M frequency domain units.
  • the network device may send a reference signal to the terminal device through the transmitting beam on M frequency domain units. Therefore, the transmitting beam and receiving beam here may be understood as a beam pair.
  • the total bandwidth corresponding to the M frequency domain units may be included in the bandwidth corresponding to the first beam.
  • the two frequency domain units are subcarrier 0 to subcarrier 1.
  • the total bandwidth of subcarrier 0 and subcarrier 1 is included in the bandwidth corresponding to the first beam.
  • the bandwidths corresponding to different frequency domain units in the M frequency domain units may be the same or different.
  • the pointing angle of the frequency domain unit in the first beam mentioned in the present application may refer to the angle value corresponding to the energy peak of the frequency domain unit in the first beam.
  • the first beam covers the area from 0° to 90° (not shown in Figure 4).
  • the pointing angle of the frequency domain unit in the first beam is the angle value of the line between the point in the antenna radiation pattern where the antenna gain is 0 and the point corresponding to the energy peak of the frequency domain unit in the first beam relative to 0°.
  • the terminal device measures the energy of the reference signal on M frequency domain units respectively to obtain the energy information of each frequency domain unit in the M frequency domain units.
  • the reference signal can be transmitted on N transmission paths. Therefore, the terminal device can also measure the energy of the reference signal on the N transmission paths respectively.
  • the energy information of each frequency domain unit in the M frequency domain units can be understood as one of the following, specifically:
  • the energy information of each frequency domain unit in the M frequency domain units may be the sum or maximum value of the energy values on the N transmission paths.
  • the energy information of the reference signal on subcarrier 0 may be the sum of the energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 1 may be the sum of the energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 2 may be the sum of the energy values on the LOS path and the NLOS path.
  • the energy information of the reference signal on subcarrier 0 may be the maximum value of the energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 1 may be the maximum value of the energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 2 may be the maximum value of the energy values on the LOS path and the NLOS path.
  • the energy information of each frequency domain unit in the M frequency domain units may include the energy value on N transmission paths.
  • the energy information of the reference signal on subcarrier 0 may include energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 1 may include energy values on the LOS path and the NLOS path
  • the energy information of the reference signal on subcarrier 2 may include energy values on the LOS path and the NLOS path.
  • the method may further include: the terminal device receives second information from the network device, and the second information is used to determine M frequency domain units.
  • the second information may include the frequency domain resources of the reference signal (the frequency point resources where the reference signal is located, the number of frequency domain resources used by the reference signal, and the subcarrier spacing), and the frequency domain resources of the reference signal include M frequency domain units.
  • the second information may also include at least one of the following: the time domain resources of the reference signal (period, offset, occupied length, number of repetitions, repetition interval, time domain position used to determine the occurrence of the reference signal and the occupied time domain length, etc.), code domain resources (sequence of the reference signal, cyclic shift of the reference signal), etc.
  • the second information may also be referred to as the resource configuration information of the reference signal.
  • the second information may be carried in a radio resource control (RRC) message, a downlink control message, or a (downlink control information, DCI) or media access control layer control element (media access control-control element, MAC CE).
  • RRC radio resource control
  • DCI downlink control information
  • MAC CE media access control layer control element
  • the network device receives first information from the terminal device, where the first information is used to determine a first frequency domain unit having the largest energy information among the M frequency domain units.
  • the terminal device sends the first information to the network device.
  • the terminal device needs to know the way to report the energy information to the network device.
  • the terminal device can obtain the way to report the energy information to the network device through instructions from the positioning server.
  • the terminal device receives the third information from the positioning server, and the third information is used to instruct the terminal device to report the energy information at the frequency domain unit level.
  • the third information can be, for example, the Long Term Evolution Technology Positioning Protocol Request Location Information (LPPrequestlocationinformation) or the New Radio Positioning Protocol Request Location Information (NRPParequestlocationinformation).
  • the first information may be a measurement report (measurement report).
  • the first information may be carried in an RRC message, uplink control information (UCI) or MAC CE, for example.
  • the first information is used to determine the first frequency domain unit with the largest energy information among the M frequency domain units.
  • the first information includes an index of the first frequency domain unit.
  • M frequency domain units are associated with M indexes.
  • the network device may indicate to the terminal device an association relationship between the M frequency domain units and the M indexes.
  • the association relationship between the M frequency domain units and the M indexes includes an association relationship between the first frequency domain unit and the index of the first frequency domain unit.
  • the first information includes energy information of each frequency domain unit in the M frequency domain units, and the energy information of each frequency domain unit in the M frequency domain units is used to determine the first frequency domain unit. That is, after receiving the first information, the network device can determine the first frequency domain unit based on the energy information of each frequency domain unit in the M frequency domain units.
  • the first information includes energy information of at least one frequency domain unit among the M frequency domain units whose energy information is greater than a threshold. That is, after receiving the first information, the network device can determine the first frequency domain unit based on the energy information of each frequency domain unit in at least one frequency domain unit.
  • the threshold value can be a predefined or preconfigured value greater than 0, which is not limited here.
  • the energy information of each frequency domain unit in the M frequency domain units is the sum or maximum value of the energy values on the N transmission paths.
  • the network device can determine the first frequency domain unit with the largest energy information in the M frequency domain units based on the energy information of each frequency domain unit in the M frequency domain units. Exemplarily, it is assumed that M is 4, N is 2, the 3 frequency domain units are subcarrier 0 to subcarrier 3, and the N transmission paths are LOS path and NLOS path.
  • the energy information of the reference signal on subcarrier 0 can be the sum of the energy values on the LOS path and the NLOS path, that is, 41dB;
  • the energy information of the reference signal on subcarrier 1 can be the sum of the energy values on the LOS path and the NLOS path, that is, 31dB;
  • the energy information of the reference signal on subcarrier 2 can be the sum of the energy values on the LOS path and the NLOS path, that is, 150dB;
  • the energy information of the reference signal on subcarrier 3 can be the sum of the energy values on the LOS path and the NLOS path, that is, 30dB. Therefore, the energy information of the reference signal on subcarrier 2 is the largest, and the network device can use subcarrier 2 as the first frequency domain unit.
  • the energy information of each of the M frequency domain units may include an energy value on N transmission paths.
  • the network device may determine the maximum energy value of each of the M frequency domain units on the transmission path, and thus may determine the first frequency domain unit based on the maximum energy value of each of the M frequency domain units on the transmission path.
  • M 2
  • N 2
  • the 2 frequency domain units are subcarrier 0 to subcarrier 1
  • the N transmission paths are LOS path and NLOS path.
  • the energy information of the reference signal on subcarrier 0 may include the energy value of the LOS path and the energy value on the NLOS path, and the energy value of the reference signal on subcarrier 0 and the LOS path is greater than the energy value of the reference signal on subcarrier 0 and the NLOS path.
  • the energy information of the reference signal on subcarrier 1 may include the energy value of the LOS path and the energy value on the NLOS path, and the energy value of the reference signal on subcarrier 1 and the LOS path is greater than the energy value of the reference signal on subcarrier 1 and the NLOS path. If the energy value of the reference signal on subcarrier 0 and the LOS path is greater than the energy value of the reference signal on subcarrier 1 and the LOS path, the network device may use subcarrier 0 as the first frequency domain unit.
  • the positioning server receives indication information from the network device, where the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit.
  • the network device sends indication information to the positioning server.
  • the indication information is determined based on the first frequency domain unit and can be understood as one of the following, specifically:
  • the indication information is determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion. In this case, it can also be understood that the indication information is the directional angle corresponding to the first frequency domain unit.
  • the directional angle corresponding to the first frequency domain unit satisfies the following conditions:
  • ⁇ 0 is the minimum angle value in the angle range of the first beam dispersion
  • f is the difference between the frequency of the first frequency domain unit and the frequency of the frequency domain unit corresponding to the minimum angle value in the angle range of the first beam dispersion
  • ⁇ M is the maximum angle value in the angle range of the first beam dispersion
  • fc is the RF carrier frequency corresponding to the first beam
  • F is the bandwidth corresponding to the first beam.
  • the frequency of a certain frequency domain unit (such as the first frequency domain unit, etc.) mentioned in the present application may refer to the center frequency of the frequency domain unit, or other frequencies except the center frequency, which is not limited here.
  • beam dispersion can refer to the different pointing angles corresponding to different frequencies within the bandwidth corresponding to the beam. It can also be said that the spatial angles at which the energy peaks corresponding to different frequencies within the bandwidth corresponding to the beam are located are different. As shown in Figure 5, there are three subcarriers, namely subcarrier 0 to subcarrier 2.
  • the pointing angles corresponding to each subcarrier are presented in the form of a subbeam similar to a certain beam, but in essence, the three subcarriers all correspond to the same beam, that is, the bandwidth of each subcarrier in the three subcarriers is included in the bandwidth of the same beam.
  • the pointing angle corresponding to subcarrier 1 is aligned with the terminal device.
  • the pointing angle corresponding to subcarrier 2 is aligned with the terminal device.
  • the spatial angle at which the energy peak corresponding to subcarrier 1 is located is different from the spatial angle at which the energy peak corresponding to subcarrier 2 is located.
  • the angular range of the first beam dispersion may include an interval determined by a minimum angle value and a maximum angle value, and the angular range may also include boundary points or not include boundary points, such as a minimum angle value and/or a maximum angle value, which are not limited here.
  • the angular range may be predefined or preconfigured.
  • the minimum angle value and the maximum angle value may also be referred to as a starting angle value and an ending angle value, respectively.
  • the angle value in the angle range of the first beam dispersion can be achieved by configuring a phase shifter (PS) and a time delayer (TD) in a network device.
  • the phase shifter is used to adjust the phase value of an antenna array in the network device
  • the time delayer is used to adjust the delay value of the antenna array.
  • the number of the antenna arrays can be one or more, used to transmit the first beam. It can be seen from here that by configuring the phase shifter and the time delayer, the pointing angles of different frequency domain units in the M frequency domain units under the first beam can be different.
  • the following describes in detail the specific process of configuring phase shifters and time delayers to make different pointing angles of different frequency domain units in the M frequency domain units under the first beam different in combination with FIG.
  • the pointing angle of one of the M frequency domain units under the first beam is made to be the maximum angle value in the angle range of the first beam dispersion.
  • f M is the frequency of the frequency domain unit corresponding to the maximum angle value
  • m is the serial number of the mth array in the antenna array of the network device.
  • the baseband signal output by the baseband of the network device after the baseband signal output by the baseband of the network device is input into the RF chain, it can pass through the phase shifter and the time delayer in sequence, and finally be transmitted through the antenna array, that is, the first beam is transmitted. Because the phase shifter and the time delayer are configured to corresponding values, the pointing angles of different frequency domain units in the M frequency domain units under the first beam can be different, such as nonlinearly distributed between ⁇ 0 and ⁇ M.
  • the angular range of the first beam dispersion may be determined based on the width of the first beam and the first angle value. That is, the angular range of the first beam dispersion may also be replaced by the width of the first beam and the first angle value. Therefore, the indication information is determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion, and may also be replaced by: the indication information is determined based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the width of the first beam may refer to the width of the first beam dispersion and/or the range of the width of the first beam dispersion, etc.
  • the first angle value is an angle value in the angle range of the first beam dispersion.
  • the first angle value is the angle value corresponding to the center frequency of the frequency band where the reference signal is located; or, the first angle value is the minimum angle value in the angle range of the first beam dispersion; or, the first angle value is the maximum angle value in the angle range of the first beam dispersion.
  • the angle value corresponding to the center frequency of the frequency band where the reference signal is located may be included in the angle range of the first beam dispersion.
  • the angular range of the first beam dispersion can be determined based on any two different angle values in the angular range of the first beam dispersion. That is to say, the angular range of the first beam dispersion can also be replaced by any two different angle values in the angular range of the first beam dispersion. Therefore, the indication information is determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion, and can also be replaced by: the indication information is determined based on the frequency of the first frequency domain unit and any two different angle values in the angular range of the first beam dispersion.
  • any two different angle values in the angle range of the first beam dispersion can be, for example, the minimum angle value and the maximum angle value in the angle range, or the minimum angle value and other angle values in the angle range except the minimum angle value and the maximum angle value, or the maximum angle value and other angle values, etc., which are not listed here one by one.
  • the indication information includes the frequency of the first frequency domain unit.
  • the indication information further includes an angular range of the first beam dispersion.
  • the positioning server The directional angle corresponding to the first frequency domain unit may be determined based on the frequency of the first frequency domain unit and the angular range of the first beam dispersion.
  • the indication information further includes a width of the first beam and a first angle value.
  • the positioning server may determine the directional angle corresponding to the first frequency domain unit based on the frequency of the first frequency domain unit, the width of the first beam and the first angle value.
  • the indication information further includes any two different angle values in the angle range of the first beam dispersion.
  • the positioning server can determine the pointing angle corresponding to the first frequency domain unit based on the frequency of the first frequency domain unit and any two different angle values in the angle range of the first beam dispersion.
  • the position of the terminal device may be the absolute position of the terminal device, such as the global positioning system (GPS) coordinates or the Beidou system coordinates.
  • the position of the terminal device may be the relative position of the terminal device, such as the position of the terminal device relative to the network device.
  • the position of the terminal device relative to the network device may be the angle of departure (AoD), etc.
  • positioning is achieved based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • another communication method provided in an embodiment of the present application includes but is not limited to the following steps:
  • the terminal device sends a reference signal to the network device through the first beam on M frequency domain units.
  • the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the network device receives the reference signal from the terminal device through the first beam on M frequency domain units.
  • the reference signal here may refer to the uplink reference signal, and the details may refer to the above-mentioned related description, which will not be repeated here.
  • the network device may measure the energy of the reference signal on the M frequency domain units respectively, and obtain the energy information of each frequency domain unit in the M frequency domain units. This means that the network device needs to know the specific method of measuring energy.
  • the network device may receive second information from the positioning server, and the second information is used to instruct the network device to determine the energy information at the frequency domain unit level.
  • the second information may, for example, be positioning information requested by the long-term evolution technology positioning protocol or positioning information requested by the new wireless positioning protocol.
  • the terminal device there may be at least one transmission path between the terminal device and the network device, such as N, where N is an integer greater than or equal to 1. That is, the reference signal may be transmitted on N transmission paths. Therefore, the network device may also measure the energy of the reference signal on the N transmission paths respectively. In this way, the energy information of each frequency domain unit in the M frequency domain units may be understood as one of the following, specifically:
  • the energy information of each frequency domain unit in the M frequency domain units may be the sum or maximum value of the energy values on the N transmission paths.
  • the energy information of each frequency domain unit in the M frequency domain units may include the energy value on N transmission paths.
  • the network device also needs to know how to measure energy on the transmission path.
  • the second information is used to instruct the network device to determine the energy information at the frequency domain unit level, which can also be understood as: the second information is used to instruct the network device to determine the energy value at the frequency domain unit level on the transmission path between the terminal device and the network device.
  • the first beam may refer to a transmit beam of a terminal device or a receive beam of a network device.
  • the terminal device may send a reference signal to the network device through the transmit beam on M frequency domain units.
  • the network device may receive a reference signal from the terminal device through the receive beam on M frequency domain units. Therefore, the transmit beam and receive beam here may be understood as a beam pair.
  • the total bandwidth corresponding to the M frequency domain units may be included in the bandwidth corresponding to the first beam.
  • the method further includes: the terminal device receives first information from the network device, and the first information is used to determine M frequency domain units.
  • the first information may include the frequency domain resources of the reference signal (the frequency point resources where the reference signal is located, the number of frequency domain resources used by the reference signal, and the subcarrier spacing), and the frequency domain resources of the reference signal include M frequency domain units.
  • the first information may also include at least one of the following: time domain resources of the reference signal (period, offset, occupied length, number of repetitions, repetition interval, time domain position used to determine the occurrence of the reference signal and the occupied time domain length, etc.), code domain resources (sequence of the reference signal, cyclic shift of the reference signal), etc.
  • the first information may also be referred to as resource configuration information of the reference signal.
  • the first information may be carried in an RRC message, DCI or MAC CE, for example.
  • the positioning server receives indication information from the network device, where the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit having the largest energy information among the M frequency domain units.
  • the network device sends indication information to the positioning server.
  • step 702 is similar to step 303 in Figure 3 and is not described again here.
  • positioning is achieved based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • the positioning server and the network device perform TRP configuration information exchange (configuration information exchange).
  • TRP configuration information exchange can be implemented through a TRP request message (TRP information request) and a TRP response message (TRP information response).
  • the positioning server sends a TRP request message to the network device to request TRP configuration information from the base station; the positioning server receives a TRP response message from the network device, and the TRP response message includes TRP configuration information.
  • the TRP configuration information may include at least one of the following: the physical cell index of the TRP in the network device, the global cell index, the TRP index, the downtilt angle of the network device, the location information of the TRP, etc.
  • the TRP here can be a group of co-located radio frequency units in the network device.
  • the positioning server may communicate with the network device through the access and mobility management device, such as sending a TRP request message to the network device through the access and mobility management device.
  • the positioning server and the terminal device execute the Long Term Evolution Positioning Protocol (LTE Positioning Protocol, LPP) capability transfer.
  • LTE Positioning Protocol LPP
  • the network device receives a positioning request message from the positioning server.
  • the network device sends second information to the terminal device, where the second information is used to determine M frequency domain units.
  • the terminal device receives the second information from the network device.
  • step 804 please refer to the relevant description of step 301 in Figure 3, and no further details are given here.
  • the network device may determine the second information based on the above positioning capability information.
  • the positioning server receives a positioning response message (positioninginformationresponse) from the network device, where the positioning response message is used to indicate that resource configuration of the reference signal has been completed.
  • the network device sends a positioning response message to the positioning server.
  • the terminal device receives third information from the positioning server, where the third information is used to instruct the terminal device to report energy information at the frequency domain unit level.
  • the positioning server sends the third information to the terminal device.
  • step 806 please refer to the related description of step 302 in FIG. 3, which will not be elaborated here.
  • step 806 can be executed before or after any one of steps 803 to 805, or can be executed simultaneously with any one of steps 803 to 805.
  • the terminal device receives a reference signal from the network device through the first beam on the M frequency domain units.
  • the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the network device sends a reference signal to the terminal device through the first beam on M frequency domain units.
  • step 807 please refer to the related description of step 301 in FIG. 3, which will not be elaborated here.
  • the network device receives first information from the terminal device, where the first information is used to determine a first frequency domain unit having the largest energy information among the M frequency domain units.
  • the terminal device sends the first information to the network device.
  • step 808 please refer to the related description of step 302 in FIG. 3, which will not be elaborated here.
  • the positioning server receives indication information from the network device, where the indication information is used to determine the location of the terminal device, and the indication information is determined based on the first frequency domain unit.
  • the network device sends indication information to the positioning server.
  • step 809 please refer to the relevant description of step 303 in Figure 3, which will not be repeated here.
  • positioning is achieved based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • a process based on uplink reference signal positioning includes but is not limited to the following steps:
  • the positioning server and the network device perform TRP configuration information exchange (configuration information exchange).
  • step 901 is similar to step 801 in Figure 8 and is not repeated here.
  • the positioning server and the terminal device perform LPP capability transfer.
  • step 902 is similar to step 802 in Figure 8 and is not repeated here.
  • the positioning server sends a positioning request message to the network device, where the positioning request message is used to request the network device to configure resource configuration information of a reference signal for the terminal device.
  • the network device receives a positioning request message from the positioning server.
  • step 903 is similar to step 803 in Figure 8 and is not repeated here.
  • the network device sends first information to the terminal device, where the first information is used to determine M frequency domain units.
  • the terminal device receives the first information from the network device.
  • step 904 please refer to the relevant description of step 701 in Figure 7, and no further details are given here.
  • the network device may determine the first information based on the above positioning capability information.
  • the positioning server receives a positioning response message from the network device, where the positioning response message is used to indicate that resource configuration of the reference signal has been completed.
  • the network device sends a positioning response message to the positioning server.
  • the network device receives second information from the positioning server, where the second information is used to instruct the network device to determine energy information at a frequency domain unit level.
  • the positioning server sends the second information to the network device.
  • step 906 please refer to the relevant description of step 701 in Figure 7, and no further details are given here.
  • the terminal device sends a reference signal to the network device through the first beam on the M frequency domain units.
  • the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the network device receives the reference signal from the terminal device through the first beam on M frequency domain units.
  • step 907 please refer to the relevant description of step 701 in Figure 7, and no further details are given here.
  • the positioning server receives indication information from the network device, where the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit having the largest energy information among the M frequency domain units.
  • the network device sends indication information to the positioning server.
  • step 908 please refer to the relevant description of step 702 in Figure 7, and no further details are given here.
  • positioning is achieved based on energy information at the frequency domain unit level on a single beam, which not only avoids the problem of large beam overhead caused by beam scanning alignment, but also avoids the problem of low positioning accuracy caused by positioning based on beam-level energy information.
  • FIG3, FIG7, FIG8 and FIG9 are all illustrated with one network device. In actual applications, there may be multiple network devices, and the operations of these network devices are the same as the operations performed by the network devices in FIG3, FIG7, FIG8 or FIG9.
  • the positioning server can receive indication information from different network devices, and then can determine the location of the terminal device based on the indication information from different network devices, and the specific process is not limited here.
  • the above devices include hardware structures and/or software modules corresponding to executing each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
  • the embodiment of the present application can divide the functional modules of the terminal device, network device or positioning server according to the above method example.
  • each functional module can be divided according to each function, or two or more functions can be integrated into one processing module.
  • the above integrated module can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.
  • FIG. 10 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • the communication device 1000 can be applied to the method shown in any of the embodiments shown in FIG. 3, FIG. 7, FIG. 8 and FIG. 9.
  • the communication device 1000 includes: a processing module 1001 and a transceiver module 1002.
  • the processing module 1001 can be one or more processors, and the transceiver module 1002 can be a transceiver or a communication interface. It can also be said that the transceiver module 1002 includes a sending module and/or a receiving module.
  • the sending module is used to perform the sending action in the method shown in any of the embodiments shown in FIG. 3, FIG. 7, FIG. 8 and FIG.
  • the communication device can be used to implement the terminal device, network device or positioning server involved in any of the above method embodiments, or to implement the function of the network element involved in any of the above method embodiments.
  • the network element or network function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (e.g., a cloud platform).
  • the communication device 1000 may further include a storage module 1003 for storing program codes and data of the communication device 1000 .
  • the communication device when used as a terminal device or a chip used in a terminal device, and performs the steps performed by the terminal device in the above method embodiment.
  • the transceiver module 1002 is used to specifically perform the sending and/or receiving actions performed by the terminal device in any embodiment of Figures 3, 7, 8 and 9, such as supporting the terminal device to perform other processes of the technology described herein.
  • the processing module 1001 can be used to support the communication device 1000 to perform the processing actions in the above method embodiment, for example, supporting the terminal device to perform other processes of the technology described herein.
  • the transceiver module 1002 is used to: receive a reference signal from a network device through a first beam on M frequency domain units, where the reference signal is used to determine energy information of each of the M frequency domain units, where the bandwidth corresponding to each of the M frequency domain units is included in the bandwidth corresponding to the first beam, where different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; send first information to the network device, where the first information is used to determine the first frequency domain unit with the largest energy information among the M frequency domain units.
  • the transceiver module 1002 is further used to receive second information from a network device, where the second information is used to determine M frequency domain units.
  • the transceiver module 1002 is further used to receive third information from the positioning server, where the third information is used to instruct the terminal device to report energy information at the frequency domain unit level.
  • the transceiver module 1002 is used to: send a reference signal to a network device through a first beam on M frequency domain units; wherein the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2.
  • the transceiver module 1002 is further used to receive first information from a network device, where the first information is used to determine M frequency domain units.
  • the communication device when used as a network device or a chip used in a network device, and performs the steps performed by the network device in the above method embodiment.
  • the transceiver module 1002 is used to specifically perform the sending and/or receiving actions performed by the network device in any embodiment of Figures 3, 7, 8 and 9, for example, to support the network device to perform other processes of the technology described herein.
  • the processing module 1001 can be used to support the communication device 1000 to perform the processing actions in the above method embodiment, for example, to support the network device to perform other processes of the technology described herein.
  • the transceiver module 1002 is used to: send a reference signal to a terminal device through a first beam on M frequency domain units, where the reference signal is used to determine the energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; receive first information from the terminal device, where the first information is used to determine the first frequency domain unit with the largest energy information among the M frequency domain units; send indication information to a positioning server, where the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit.
  • the transceiver module 1002 is further used to send second information to the terminal device, where the second information is used to determine M frequency domain units.
  • the energy information of each of the M frequency domain units includes energy values on N transmission paths, where the transmission path is the transmission path between the terminal device and the network device, and N is an integer greater than or equal to 1; the processing module 1001 is used to: determine the maximum energy value of each of the M frequency domain units on the transmission path; and determine the first frequency domain unit based on the maximum energy value of each of the M frequency domain units on the transmission path.
  • the transceiver module 1002 is used to: receive a reference signal from a terminal device through a first beam on M frequency domain units, the reference signal is used to determine energy information of each frequency domain unit in the M frequency domain units, the bandwidth corresponding to each frequency domain unit in the M frequency domain units is included in the bandwidth corresponding to the first beam, different frequency domain units in the M frequency domain units have different pointing angles under the first beam, and M is an integer greater than or equal to 2; send indication information to a positioning server, the indication information is used to determine the position of the terminal device, and the indication information is determined based on the first frequency domain unit with the largest energy information among the M frequency domain units.
  • the transceiver module 1002 is further used to send first information to the terminal device, where the first information is used to determine M frequency domain units.
  • the energy information of each of the M frequency domain units includes energy values on N transmission paths, where the transmission path is the transmission path between the terminal device and the network device, and N is an integer greater than or equal to 1; the processing module 1001 is used to: determine the maximum energy value of each of the M frequency domain units on the transmission path; and determine the first frequency domain unit based on the maximum energy value of each of the M frequency domain units on the transmission path.
  • the transceiver module 1002 is further used to receive second information from the positioning server, where the second information is used to instruct the network device to determine energy information at the frequency domain unit level.
  • the communication device when used as a positioning server or a chip used in a positioning server, and performs the steps performed by the positioning server in the above method embodiment.
  • the transceiver module 1002 is used to specifically perform the sending and/or receiving actions performed by the positioning server in any embodiment of Figures 3, 7, 8 and 9, for example, to support the positioning server to perform other processes of the technology described herein.
  • the processing module 1001 can be used to support the communication device 1000 to perform the processing actions in the above method embodiment, for example, to support the positioning server to perform other processes of the technology described herein.
  • the transceiver module 1002 is used to receive indication information from a network device, the indication information is used to determine the location of the terminal device, and the indication information is determined based on a first frequency domain unit, which is a frequency domain unit with the largest energy information among M frequency domain units, and M is an integer greater than or equal to 2.
  • the transceiver module 1002 is further used to send third information to the terminal device, where the third information is used to instruct the terminal device to report energy information at the frequency domain unit level.
  • the transceiver module 1002 is further used to send second information to the network device, where the second information is used to instruct the network device to determine energy information at the frequency domain unit level.
  • the transceiver module 1002 may be a communication interface, a pin or a circuit, etc.
  • the communication interface may be used to input data to be processed to the processor, and may output the processing result of the processor to the outside.
  • the communication interface may be a general purpose input output (GPIO) interface, which may be connected to multiple peripheral devices (such as a display (LCD), a camera (camera), a radio frequency (RF) module, an antenna, etc.).
  • GPIO general purpose input output
  • peripheral devices such as a display (LCD), a camera (camera), a radio frequency (RF) module, an antenna, etc.
  • the communication interface is connected to the processor via a bus.
  • the processing module 1001 may be a processor, which may execute the computer execution instructions stored in the storage module so that the chip executes the method involved in any of the embodiments shown in FIG. 3, FIG. 7, FIG. 8 and FIG. 9. Further, the processor may include a controller, an operator and a register. Exemplarily, the controller is mainly responsible for instruction decoding and sends a control signal for the operation corresponding to the instruction.
  • the operator is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations and logical operations, etc., and may also perform address operations and conversions.
  • the register is mainly responsible for storing register operands and intermediate operation results temporarily stored during the execution of instructions.
  • the hardware architecture of the processor may be an application-specific integrated circuit (ASIC) architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced reduced instruction set machine (ARM) architecture or a second processor (NP) architecture, etc.
  • the processor may be single-core or multi-core.
  • the storage module may be a storage module within the chip, such as a register, a cache, etc.
  • the storage module may also be a storage module located outside the chip, such as a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.
  • processors and the interface can be implemented through hardware design, software design, or a combination of hardware and software, and there is no limitation here.
  • FIG11 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application.
  • the communication device 1110 includes, for example Modules, units, elements, circuits, or interfaces and other necessary forms of means are appropriately configured together to implement the present solution.
  • the communication device 1110 can be the above-mentioned terminal device, network device or positioning server, or a component (such as a chip) in these devices, to implement the method described in the above-mentioned method embodiment.
  • the communication device 1110 includes one or more processors 1111.
  • the processor 1111 can be a general-purpose processor or a dedicated processor, etc. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control the communication device (such as a terminal device, a network device, or a chip, etc.), execute software programs, and process data of software programs.
  • the processor 1111 may include a program 1113 (sometimes also referred to as code or instruction), and the program 1113 may be run on the processor 1111, so that the communication device 1110 performs the method described in the above embodiment.
  • the communication device 1110 includes a circuit (not shown in FIG. 11), and the circuit is used to implement the functions of the terminal device, network device or positioning server in the above embodiment.
  • the communication device 1110 may include one or more memories 1112, on which a program 1114 (sometimes also referred to as code or instruction) is stored, and the program 1114 can be run on the processor 1111, so that the communication device 1110 performs the method described in the above method embodiment.
  • data may also be stored in the processor 1111 and/or the memory 1112.
  • the processor and the memory may be provided separately or integrated together.
  • the communication device 1110 may further include a transceiver 1115 and/or an antenna 1116.
  • the processor 1111 may also be sometimes referred to as a processing unit, which controls the communication device (e.g., a terminal device, a network device, or a positioning server).
  • the transceiver 1115 may also be sometimes referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which is used to implement the transceiver function of the communication device through the antenna 1116.
  • the transceiver 1115 may include a transmitter and/or a receiver.
  • the transmitter may be referred to as a transmitting unit, a transmitter, or a transmitting circuit, etc., for implementing a transmitting function
  • the receiver may be referred to as a receiving unit, a receiver, or a receiving circuit, etc., for implementing a receiving function.
  • the communication device 1110 is a chip in a terminal device, a network device, or a positioning server
  • the transceiver 1115 may be an input and output interface of the chip, corresponding to the receiving and transmitting of any of the embodiments in FIG. 3, FIG. 7, FIG. 8, and FIG. 9, respectively.
  • An embodiment of the present application also provides a communication device, which includes at least one processor; wherein the at least one processor is configured to execute any method described in any one of the embodiments in Figures 3, 7, 8 and 9.
  • An embodiment of the present application also provides a computer-readable storage medium, which stores computer instructions.
  • the computer instructions When the computer instructions are executed, the computer executes any method described in any of the embodiments in Figures 3, 7, 8 and 9.
  • An embodiment of the present application further provides a computer program product, which includes: a computer program code, and when the computer program code is executed by a computer, the computer executes any of the methods described in any of the embodiments shown in Figures 3, 7, 8 and 9.
  • An embodiment of the present application also provides a chip, which includes at least one processor and an interface, wherein the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes any method described in any of the embodiments in Figures 3, 7, 8 and 9.
  • each network element unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware or in the form of software network element units.
  • the integrated unit is implemented in the form of a software network element unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the part that essentially contributes to the technical solution of the present application, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a terminal device, a cloud server, or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of each embodiment of the present application.
  • the aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.
  • program codes such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

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

Abstract

La présente demande se rapporte à un procédé et à un appareil de communication. Selon le procédé de communication, un dispositif terminal peut recevoir, sur M unités de domaine fréquentiel, un signal de référence provenant d'un dispositif réseau au moyen d'un premier faisceau. Comme différentes unités de domaine fréquentiel parmi les M unités de domaine fréquentiel ont des angles de pointage différents sous le premier faisceau, le dispositif terminal peut déterminer, d'après le signal de référence, les informations énergétiques de chaque unité de domaine fréquentiel parmi les M unités de domaine fréquentiel, et peut ainsi envoyer au dispositif réseau des premières informations permettant de déterminer une première unité de domaine fréquentiel (c'est-à-dire, l'unité de domaine fréquentiel ayant l'énergie la plus élevée parmi les M unités de domaine fréquentiel). En conséquence, sur la base de la première unité de domaine fréquentiel, le dispositif réseau peut envoyer à un serveur de positionnement des informations d'indication permettant de déterminer l'emplacement du dispositif terminal. En d'autres termes, le positionnement est réalisé sur la base d'informations énergétiques au niveau de l'unité de domaine fréquentiel sur un seul faisceau, ce qui permet d'éviter le problème des surdébits de faisceau importants provoqués par un alignement de balayage de faisceau et d'éviter le problème de faible précision de positionnement provoqué par la réalisation d'un positionnement sur la base d'informations énergétiques au niveau du faisceau.
PCT/CN2024/122007 2023-10-26 2024-09-27 Procédé et appareil de communication Pending WO2025087003A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
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US20120184302A1 (en) * 2011-01-19 2012-07-19 Telefonaktiebolaget Lm Ericsson (Publ) User equipment, a positioning node and methods therein
CN104467993A (zh) * 2013-09-25 2015-03-25 普天信息技术有限公司 一种到达方位角的测量方法及装置
CN116420090A (zh) * 2020-11-13 2023-07-11 高通股份有限公司 用于使用波束关系众包的定位增强的系统和方法
CN116711222A (zh) * 2020-12-28 2023-09-05 瑞典爱立信有限公司 用于使用角度和延迟互易性减少nr类型ii信道状态信息反馈的开销的方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120184302A1 (en) * 2011-01-19 2012-07-19 Telefonaktiebolaget Lm Ericsson (Publ) User equipment, a positioning node and methods therein
CN104467993A (zh) * 2013-09-25 2015-03-25 普天信息技术有限公司 一种到达方位角的测量方法及装置
CN116420090A (zh) * 2020-11-13 2023-07-11 高通股份有限公司 用于使用波束关系众包的定位增强的系统和方法
CN116711222A (zh) * 2020-12-28 2023-09-05 瑞典爱立信有限公司 用于使用角度和延迟互易性减少nr类型ii信道状态信息反馈的开销的方法

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