Huawei Technologies Co., Limited

Shanghai University

Yingjie Yu

Yi Wang

Su Huang

Zhenyu Shi

Hongping Zhang

Yinghao Guo

Hongxia Shen

Huiming Sun

Shili Liu

Qinxin Liu

Wenjing Zhou

Guangcai Huang

This application discloses an indoor-outdoor determining-based uplink transmission method and apparatus. A terminal device or a positioning device determines whether the terminal device is located indoors or outdoors. The terminal device or the positioning device sends a first message to an access network device, where the first message includes a first information element, and the first information element indicates whether the terminal device is located indoors or outdoors. The access network device determines an access parameter of the terminal device based on the first information element, where the access parameter includes an access frequency. According to the method disclosed in embodiments of this application, uplink transmission of the terminal device in a proper frequency band is implemented, and communication interference is reduced.

Uplink transmission method and apparatus

Example methods for reporting user equipment location information and apparatus are described. In one example method, user equipment receives a first message, where the first message comprises a paging trigger indication, and the paging trigger indication is used to trigger the user equipment to report, when receiving a paging message, a measurement result of a positioning reference signal. The user equipment receives the paging message in an idle state or an inactive state. The measurement result of the positioning reference signal is reported by the user equipment based on the paging message.

User equipment location information reporting method, user equipment, and network device

Water dispenser

Electric saw

A preamble-based locating method and a device are provided. The method includes: a location management function network element receives first indication information from a first network device, wherein the first indication information indicates a first random access channel resource; sends second indication information to a terminal device, wherein the second indication information indicates a second random access channel resource, and the second indication information further indicates the terminal device to send a preamble to the first network device and a second network device; sends a location information request to the first network device and each second network device; the location management function network element receives measurement information from both the first network device and each second network device; and the location management function network element determines a location of the terminal device based on the measurement information.

Preamble-based locating method and device

This application provides a signal transmission method and apparatus. The method includes: A neighboring cell sends downlink reference signal resource configuration information to a serving cell. The serving cell sends a downlink reference signal measurement request including downlink reference signal resource configuration information to a terminal device. The neighboring cell and the terminal device transmit a downlink reference signal based on the downlink reference signal resource configuration information. The terminal device obtains a downlink reference signal measurement result. The terminal device sends the downlink reference signal measurement result to the serving cell. The serving cell sends the downlink reference signal measurement result to the neighboring cell, or sends, to the neighboring cell, beam information that is about a beam between the neighboring cell and the terminal device and that is determined based on the downlink reference signal measurement result.

Signal transmission method and apparatus

Children's slide

A signal transmission method includes receiving a first positioning reference signal (PRS) resource set, receiving a second PRS resource set, and determining that N first PRS resources in the first PRS resource set and N second PRS resources in the second PRS resource set satisfy a quasi-colocation (QCL) relationship, where N is an integer greater than or equal to 1.

Reference signal transmission method and device

An information configuration method and apparatus, the method including receiving first configuration information, where the first configuration information includes configuration information of a time-frequency resource to which a positioning reference signal (PRS) is mapped and configuration information of a time-frequency resource to which a synchronization signal/physical broadcast channel (SS/PBCH) block is mapped, determining, based on the first configuration information, the time-frequency resource to which the PRS is mapped and the time-frequency resource to which the SS/PBCH block is mapped, and skipping receiving, when the time-frequency resource to which the SS/PBCH block is mapped overlaps the time-frequency resource to which the PRS is mapped, the PRS on the overlapped time-frequency resource.

Wireless positioning signal reception configuration method and apparatus

A positioning method relating to the field of communications technologies includes: a positioning device obtains a positioning parameter set and sends the positioning parameter set to a positioning center, where the positioning parameter set includes multipath information of a to-be-positioned terminal, and the multipath information is used to position the to-be-positioned terminal. The positioning center may position the to-be-positioned terminal by using the multipath information of the to-be-positioned terminal.

Positioning method and apparatus

This application relates to the field of communications technologies, and provides a time synchronization method and an apparatus, to perform positioning and/or timing error measurement on a target terminal in a wireless communications system, so as to avoid a relatively large positioning error caused by a timing error between the target terminal and a base station. The method is used in a wireless positioning system, where the wireless positioning system includes a first node and a second node, and the method includes: The first node receives an arrival time tof a first reference signal and a sending time tof a second reference signal that are sent by a second node, where the first reference signal is sent by the first node, and the second reference signal is sent by the second node.

Time synchronization method and apparatus

A positioning method and a device, related to the communications field. In a 5G NR system, UE may be positioned only by measuring an uplink angle of arrival. The method includes: obtaining, by a location management function network element, a positioning measurement parameter set, where the positioning measurement parameter set at least includes at least two uplink angles of arrival that are obtained by measuring a reference signal sent by a terminal device; and determining, by the location management function network element, a location of the terminal device based on the at least two uplink angles of arrival in the positioning measurement parameter set.

Positioning method and device

This application provides an angle measurement result sending method and an apparatus. The method includes: The second device receives a reference signal sent by the first device; the second device measures the reference signal to obtain a first angle measurement result, where the first angle measurement result is a measurement result of a first measurement object, the first measurement object is a direct path or a reflection path, the first angle measurement result includes M angle measurement parameters, at least one of the M angle measurement parameters in the first angle measurement result includes a plurality of angle measurement values, and M is a positive integer greater than or equal to 1; the second device sends the first angle measurement result to the location management device; and the location management device determines the location of the first device based on the first angle measurement result.

Angle measurement result sending method and apparatus

The present invention discloses a method for detecting a microstructure of a functionally graded material based on digital acousto-optic holography, including the following steps: excite a sample with an ultrasonic wave; record a light wave; form a single tomographic acousto-optic hologram; perform numerical reconstruction of phase information, and perform global detection. The present invention uses an acoustic-optic modulation device to modulate a laser light source of a laser of a laser device to form two light waves of different frequencies. The two light waves each constitute a Mach-Zehnder interference system to record reflection wave information and transmission wave information of an ultrasound, and are finally combined and recorded in the same hologram to form the single tomographic acousto-optic hologram.

Growing community of inventors

Shanghai, China

Yingjie Yu