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US 11,388,550 B2Granted
Positioning method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsYi Wang, Bin Hu, Xiaodong Xu
Life of this patent
Estimating the term…
Abstract
This application provides a positioning method and apparatus. The method includes: obtaining, by a positioning apparatus, information about a transmission environment of each channel in a plurality of channels for a terminal device; determining, by the positioning apparatus, a target channel from the plurality of channels based on the information about the transmission environment of each channel; and locating, by the positioning apparatus, the terminal device based on positioning measurement information of the target channel. The positioning method and apparatus provided in this application helps improve positioning accuracy.
Claims12
A positioning method comprising:
- obtaining, by a positioning apparatus, information about a transmission environment of each channel in a plurality of channels for a terminal device, wherein obtaining, by the positioning apparatus, information about the transmission environment of each channel in the plurality of channels for the terminal device includes:
- sending, by the positioning apparatus, a first request message to the terminal device or a network device corresponding to each channel in the plurality of channels, wherein the first request message is used to request the information about the transmission environment of each channel, and receiving, by the positioning apparatus, a first feedback message from the terminal device or the network device corresponding to each channel in the plurality of channels, wherein the first feedback message carries the information about the transmission environment of each channel, wherein the transmission environments of the plurality of channels comprise line-of-sight (LOS) transmission, non-line-of-sight (NLOS) transmission, near LOS, and near NLOS, wherein determining the transmission environment includes:
- obtaining a difference between a direction of arrival (DOA) of a high frequency signal and a DOA of a low frequency signal on the channel;
- and determining the transmission environment of the channel based on the difference includes upon determining the difference is less than or equal to a first preset value, determine the transmission environment of the channel is line of sight (LOS), upon determining the difference is greater than the first preset value and is less than or equal to a second preset value, determine the transmission environment of the channel is near LOS, wherein the second preset value is greater than the first preset value;
- determining, by the positioning apparatus, a target channel from the plurality of channels based on the information about the transmission environment of each channel;
- and
- locating, by the positioning apparatus, the terminal device based on positioning measurement information of the target channel.
4 more elements
A positioning apparatus comprising:
- a processor configured to determine a transmission environment of a channel between a terminal device and a network device;
- and
- a transceiver configured to send information about the transmission environment that is of the channel and that is determined by the processor of the positioning apparatus, wherein the positioning apparatus obtains information about the transmission environment of each channel in a plurality of channels for the terminal device by:
- sending, by the transceiver of the positioning apparatus, a first request message to the terminal device or the network device corresponding to each channel in the plurality of channels, wherein the first request message is used to request the information about the transmission environment of each channel, and receiving, by transceiver of the positioning apparatus, a first feedback message from the terminal device or the network device corresponding to each channel in the plurality of channels, wherein the first feedback message carries the information about the transmission environment of each channel, and wherein, the processor determines a target channel from the plurality of channels based on the information about the transmission environment of each channel and a location of the terminal device based on positioning measurement information of the target channel;
- wherein transmission environments of the plurality of channels comprise line-of-sight (LOS) transmission, non-line-of-sight (NLOS) transmission, near LOS, and near NLOS, and wherein the processor is further configured to:
- obtain a difference between a direction of arrival (DOA) of a high frequency signal and a DOA of a low frequency signal on the channel;
- and determine the transmission environment of the channel based on the difference, and, when the difference is less than or equal to a first preset value, determine the transmission environment of the channel is LOS, when the difference is greater than the first preset value and is less than or equal to a second preset value, determine the transmission environment of the channel is near LOS, wherein the second preset value is greater than the first preset value.
4 more elements
Dependencies are inferred from the claim text.