Huawei Technologies Co., Limited

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Denso Corporation

Jianqin Liu

Qiang Wu

Jianghua Liu

Bingyu Qu

Kunpeng Liu

Yongxing Zhou

Chi Gao

Di Zhang

Ruiqi Zhang

Yi Qin

Xu Zhang

Chuanfeng He

Peng Jiang

Xiang Gao

Peng Guan

Leiming Zhang

Hongzhe Shi

Lixia Xue

Guanglin Han

Shengyue Dou

Yong Wu

Ji Wu

Mingxin Gong

Xinghua Song

Zhiheng Guo

Jiayin Zhang

Wei Han

Xueru Li

Min Zhang

Wei Sun

Yan Cheng

Jianguo Wang

Lei Chen

Lei Wan

Xiaolei Tie

Zhongfeng Li

Wei Zhou

Junwei Wang

Mingchao Li

Jun Chen

Jun Zhu

Yi Ren

Yongzhao Cao

Xianda Liu

Yongbing Lin

Zhanzhan Zhang

Yuan Li

Xinrui Feng

Cheng Qin

Jian Zhang

Dezhi Qiao

Jiqiu Liu

This application discloses a synchronization signal sending method and a related device. The method includes: generating, a first synchronization signal sequence and a second synchronization signal sequence, where the first synchronization signal sequence is a sequence obtained based on a first m-sequence, the second synchronization signal sequence is a sequence obtained based on a Gold sequence, the Gold sequence is generated based on a second m-sequence and a third m-sequence, and a generator polynomial of the first m-sequence is the same as a generator polynomial of the second m-sequence; mapping, the first synchronization signal sequence onto M subcarriers in a first time unit to obtain a first synchronization signal, and mapping the second synchronization signal sequence onto M subcarriers in a second time unit to obtain a second synchronization signal, where M and N are positive integers greater than 1.

Techniques for synchronization in wireless communications

The present disclosure relates to positioning methods, systems, and apparatuses. One example method includes receiving, by a server, a first message from a first terminal device, where the first message includes first location information determined by the first terminal device, determining, by the server, a first reference object based on the first location information, and sending, by the server, a second message to the first terminal device, where the second message includes identification information of the first reference object, and the identification information of the first reference object is used by the first terminal device to update the first location information.

Positioning method and system, and apparatus

This application provides a sequence-based signal processing method and apparatus. A sequence used for sending a signal on a PUSCH is determined. The sequence is a sequence {x} including N elements, xis an element in the sequence {x}, and the determined sequence {x} is a sequence satisfying a preset condition. Then, a first signal is generated and sent. By using the determined sequence, when a signal is sent on the PUSCH, relatively good sequence frequency domain flatness can be maintained, and a relatively low PAPR value and a relatively low cross-correlation between sequences can be maintained, thereby satisfying a communications application environment in which a signal is sent on the PUSCH, especially an NR system scenario or an NR similar scenario.

Sequence-based signal processing method and signal processing apparatus

A vehicle terminal determines a data format of detection information, where the detection information is associated with a map element. The vehicle terminal sends the detection information to a first network device based on the determined data format. The vehicle terminal receives map element change information sent by the first network device or a second network device, to update an electronic map. The first network device and the second network device each may be a cloud server or a road side unit.

Data transmission method and apparatus

A map cloud allocates an identification code to a vehicle, maintains a correspondence between the identification code and a data processing manner, and sends the identification code to the vehicle. When reporting data, the vehicle reports the identification code allocated to the vehicle, that is, identifies the corresponding processing manner of the data by using the identification code, so that after receiving a data report message reported by the vehicle, the map cloud can quickly determine the data processing manner by using the identification code included in the data report message.

Data processing method and apparatus, and computer-readable storage medium

This application relates to the field of communications technologies, and discloses an internet of vehicles-based dynamic information sending method and device, to constrain a range of sent dynamic information in a high definition map, so as to reduce a transmission amount of the dynamic information in the high definition map and improve transmission efficiency of the dynamic information. The method includes: A first device determines an indication range of dynamic information in a high definition map based on path information of a navigation map. The first device sends first indication information to a second device. The first indication information is used to indicate the dynamic information in the indication range in the high definition map.

Internet of vehicles based dynamic information sending method and device

A map update data processing apparatus and method are provided. The method includes: obtaining first information from at least one vehicle terminal in a time window; determining, based on the first information and second information in a map, first change information of the second information and precision information and/or confidence information of the first change information, wherein the first change information indicates a difference between the first information and the second information; and finally, sending the first change information of the second information and the precision information and/or the confidence information to a first vehicle terminal.

Map update data processing method, apparatus, and system

This application provides a transmission method and apparatus. The method includes: A terminal sends a random access preamble to a base station at a first transmit power, and sends a PUSCH to the base station at a second transmit power, where power deviation between the first transmit power and the second transmit power is indicated to the base station by indication information; and the terminal receives a random access response or a contention resolution message from the base station. Implementing this application can improve an existing random access procedure, so that the random access procedure is adapted to scenario requirements such as low delay, high reliability, and large-scale terminal access.

Transmission method and apparatus

A prediction method and apparatus for an autonomous driving manual takeover, and a system are provided. One example method includes: A first vehicle sends a first message to a second vehicle when detecting that the first vehicle has a manual takeover requirement, where the first message includes information about a first location of the first vehicle, and the information about the first location is used to indicate a location of the first vehicle when the first vehicle detects that the first vehicle has the manual takeover requirement.

Prediction method and apparatus for autonomous driving manual takeover, and system

A network device sends K reference signal resources, where K is an integer greater than 0. The network device receives a first random access preamble in a first random access time-frequency resource unit. The network device determines indexes of S reference signal resources and first channel state information CSI of the S reference signal resources based on the first random access preamble and the first random access time-frequency resource unit the S reference signal resources are reference signal resources in the K reference signal resources, and S is an integer greater than 0 and less than or equal to K.

Channel state information transmission method and apparatus

A paging message sending and receiving method and apparatus, the method including receiving, by a terminal device, paging indication information from a network device, where the paging indication information indicates whether at least one paging group needs to receive a paging message, and determining, by the terminal device based on the paging indication information, a paging occasion on which a paging group in which the terminal device is located receives the paging message.

Paging message sending and receiving method and apparatus

This application discloses a measurement method and apparatus, and a device. The method includes: the terminal device divides all neighbors detected on a same measurement frequency into at least two measurement groups, and performs RRM measurement separately on the at least two measurement groups based on an RRM measurement parameter corresponding to each measurement group, where the at least two measurement groups are in a one-to-one correspondence with at least two RRM measurement parameters, and the terminal device has different power consumption when performing RRM measurement on the at least two measurement groups based on the corresponding RRM measurement parameters.

Measurement method and apparatus, and device

Embodiments of this application disclose a resource allocation method, a base station, and a terminal. The method includes: A base station sends a configuration message to a terminal, where the configuration message is used to configure, for the terminal, a random access channel RACH resource used in a channel occupancy time COT. The base station receives a random access request that is sent by the terminal based on the RACH resource allocated by using the configuration message. According to embodiments of this application, a random access latency of the terminal can be reduced.

Resource allocation method, base station, and terminal

A communication method and a communications apparatus are disclosed. The method includes: receiving a discovery reference signal from a network device, where the discovery reference signal includes one or more first signals and one or more second signals, and the one or more first signals include at least a common signal block or a channel state information-reference signal (CSI-RS). The one or more first signals may be used to carry configuration information of the one or more second signals, or configuration information of the discovery reference signal may be received from the network device. The corresponding apparatus is also disclosed. By virtue of the disclosed communication method and apparatus, composition of the discovery reference signal can be accurately indicated, to avoid frequent channel discovery, and improve resource utilization efficiency of the discovery reference signal.

Communication method and communications apparatus

A data processing method includes initiating, to a cloud server, a first message used to access a roadside device or used to obtain signal transmit power-related information of static roadside equipment, receiving a second message fed back by the cloud server, where the second message is determined by the cloud server based on the first message and a prestored high-definition map, and the second message includes related information about accessing the roadside device by the vehicle-end device, or the signal transmit power-related information of the static roadside equipment, and accessing the roadside device based on the second message or determining a signal transmit power of the vehicle-end device based on the second message.

Data processing method and apparatus, vehicle-end device, cloud server, and electronic device

Growing community of inventors

Beijing, China

Jianqin Liu