Huawei Technologies Co., Limited

Guangdong Xinbao Electrical Appliances Holdings Co., Ltd.

Zhenyu Shi

Yi Bin Wang

Jian Li

Yi Wang

Lei Chen

Su Huang

Yingjie Yu

Min Li

Yingpei Lin

Lei Huang

Yang Zhang

Jiang Chen

Haihui Peng

Dongchuan Xing

Zhijian Ma

This application provides a beam information obtaining method and an apparatus, relates to the field of communications technologies, and resolves a problem that resources of positioning reference signals are wasted because the positioning reference signals need to be omnidirectionally sent because of an unknown direction, of a terminal, caused by use of a beam, when the terminal is positioned in, e.g., a 5G system. The method in this application resolves the problem and saves overheads of sending a reference signal. The method includes: The terminal receives a beam information request sent by a location management device, where the beam information request is used to request the terminal to provide measurement information of a downlink beam. The terminal obtains beam information, where the beam information includes information about a reference signal that is sent by at least one network device and that is measured by the terminal.

Positioning beam information obtaining method and apparatus

This application provides a reference signal generation method, a reference signal detection method, and a communications apparatus, so that a terminal device or a network device can generate a reference signal by using a pseudo-random sequence initial factor cprovided in embodiments of this application. Compared with a solution in the current technology, the generation manner can support a relatively large quantity of reference signal sequences, to better meet requirements of a plurality of 5G scenarios. The method may include: obtaining a reference signal sequence based on a pseudo-random sequence initial factor c; and mapping the sequence to one or more OFDM symbols, where the pseudo-random sequence initial factor cis related to a parameter d, d max(log(n+1)−10,0) or d=max(log(n+1)−12,0), max represents that a larger value is selected from two values, and nrepresents a maximum value of a reference signal sequence ID.

Reference signal generation method, reference signal detection method, and communications 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 a positioning reference signal sending method and a related apparatus. The method includes: receiving identification information, positioning reference signal (PRS) indication information, and PRS identification information of a terminal device from a location management function network element; sending the PRS identification information to the terminal device; and sending a first PRS to the terminal device. Based on the foregoing technical solutions, the terminal device may receive a PRS of another type other than a periodic PRS. Therefore, more PRSs are used for location measurement. In this way, positioning precision can be improved.

Positioning reference signal sending method and related apparatus

This application provides a reference signal generation method in which a terminal device or a network device generates a reference signal by using a pseudo-random sequence initial factor cprovided in the embodiments of this application. Compared with a solution in the current technology, the reference signal generation method can support a relatively large quantity of reference signal sequences, to better meet the requirements of different 5G scenarios. The reference signal generation method may include obtaining a reference signal sequence based on a pseudo-random sequence initial factor c, and mapping the sequence to one or more OFDM symbols. The pseudo-random sequence initial factor cis related to a parameter d, d=max(log(n+1)&#x2212;10,0) or d=max(log)(n+1)&#x2212;12,0), max represents that a larger value is selected from two values, and nrepresents a maximum value of a reference signal sequence ID.

Embodiments of this application disclose a method, an apparatus, and a system for positioning a terminal device. Location measurement data for a to-be-positioned terminal device is obtained by a terminal-side measurement function entity and/or an access-side measurement function entity, where the location measurement data includes a channel estimation and/or a channel impulse response that are/is obtained based on a corresponding downlink/uplink reference signal. The terminal-side measurement function entity and/or the access-side measurement function entity report/reports the location measurement data to a positioning service function entity in a network, so that the positioning function entity can estimate a location of the terminal device based on the location measurement data, thereby positioning the terminal device and improving positioning accuracy. This technical solution can be applied to both a single-base-station-based positioning environment and a multi-base-station-based positioning environment, to position the terminal device.

Method, apparatus, and system for positioning terminal device

A resource allocation notification method, in which a wireless access point receives capability information of a terminal device; and after receiving the capability information of the terminal device, the wireless access point determines, according to the capability information, to use one or more channel extension types to allocate a channel to the terminal device, and sends channel allocation information and/or channel extension type information to the terminal device, where the channel allocation information indicates that the terminal device sends and receives data on one or more channels, and the channel extension type information indicates the one or more channel extension types that the wireless access point determines to use.

Resource allocation notification method, and apparatus

Embodiments provide a resource allocation method. The method includes: obtaining, by a first base station, an access transmission rate of at least one second base station, where the access transmission rate is a ratio of a total throughput to a total bandwidth occupied by all the user equipments. The throughput being of all user equipments for which the at least one second base station performs scheduling, The method further includes determining, by the first base station, resource allocation information of an access link and a backhaul link of the at least one second base station according to the access transmission rate and a backhaul transmission rate of the at least one second base station, and sending the resource allocation information. The backhaul transmission rate is a ratio of a total throughput of the backhaul link of the at least one second base station to a total bandwidth of the backhaul link.

Resource allocation method, apparatus, and system, and base station

Embodiments of the present disclosure provide a signal synchronization method and apparatus for high frequency communication, and pertain to the field of wireless communications technologies. The method includes: performing, on a first beam pair, high frequency data communication with user equipment; if it is determined that the user equipment enters a dead zone state, sending a synchronization indication signal to the user equipment, where the synchronization indication signal includes at least quick synchronization indication information and user equipment information, and the user equipment information includes user ID information, beam ID information of a beam pair, and cell ID information; sending, on a specified high frequency resource, a synchronization signal to the user equipment. In the present disclosure, high frequency data communication is implemented by quickly performing re-synchronization in a dead zone state. Therefore, communication service quality is relatively high.

Signal synchronization method and apparatus for high frequency communication

The present provides a soymilk machine/juicer with grinding function, comprising a pair of concentric rotator () and stator () that are vertically arranged in a house. There are at least two thread convex ribs () on said rotator (), and the thread convex ribs () are evenly distributed on the outer surface of a rotator body (). Rotary clearance is defined between the thread convex ribs () of the rotator () and the inner wall of the stator (). The middle upper part of said rotator body () is a revolved portion with small upside and large downside. The clearance of the upside of the rotator body () corresponding to an upper filter net () on the stator () is largest, which is the smashing section for dealing with stuff after stuff is fed. The clearance of the middle part of the rotator body () corresponding to the middle upper part of an abrasive disc of the stator () is medium-size, which is for smashing stuff further. The clearance of the middle lower part of the rotator body () corresponding to the lower part of the abrasive disc of the stator () is gradually shortened to less than 1 mm, which is the grinding section for stuff. The part of the rotator () under the grinding section corresponding to a lower filter net () on the stator () is the separating section for the soymilk from residue. The rotator of said soymilk machine/juicer can rotate stably and have less noise, and stuff can be grinded to be finer.

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Shanghai, China

Zhenyu Shi