Huawei Technologies Co., Limited

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Yinghui Yu

Baokun Shan

Chenwan Li

Yan Wang

Weiwei Song

Odile Rollinger

Xin Xiong

Lei Liu

Zhenzhen Cao

Xiaolei Tie

Mingchao Li

Feng Yu

Hang Liu

Li Chen

Hong Wang

Junren Chang

Guanglin Han

Zhenglei Huang

Yajuan Li

Yuhua Chen

Hui Ma

Hejun Wang

Jian Zhang

Mingzeng Dai

Wei Quan

Yi Guo

Zhe Jin

Yi Shan Jiang

Zhongbin Qin

Yiling Wu

Pingping Xing

Qiao Zhang

Boyun Xie

Nathan Edward Tenny

Yajun Zhao

Lei Wan

Xingqing Cheng

Weiliang Zhang

Tao Zhang

Zhe Chen

Zhihu Luo

Li Hu

Miao Zhang

Weihua Zhou

Stuart Geary

Jing Han

Wei Bai

Sha Ma

Li Chai

Tao N Zhang

Han Zhou

Xiaotao Ren

Xiao Xiao

Shulan Feng

Zhiyu Yan

Jinfang Zhang

Yong Wu

Jing Chen

Yue Li

Yuan Xia

Jiangwei Ying

Tong Ji

Yong Wang

Juan Wang

Xun Tang

Guangwei Yu

Jiantao Xue

Yuwan Su

Jun Chen

Yinghua Huang

Chunchang Tian

Steven James Wenham

Xiaofei Ma

Changjian Gao

Xiaosong Zhu

Zuoyan Zhu

Mingjiang Xie

Xiaorui Zheng

Jingdong Peng

A link re-establishment method, an apparatus, and a system are described. The method includes: obtaining, by user equipment UE, a MAC of the UE based on a NAS integrity key and a first MAC generation parameter, where the first MAC generation parameter includes an identifier of the UE; sending, by the UE, a re-establishment request message to a target RAN, where the re-establishment request message includes the MAC and the first MAC generation parameter; and receiving, by the UE, a re-establishment response message of the target RAN. The UE triggers, by sending the re-establishment request message, a CP functional entity to perform authentication on the UE. The method and apparatus of the present disclosure address a problem that an excessively long time is consumed to re-establish a connection to a target RAN by using an RAU procedure, increases a speed of re-establishing a connection between UE and a network, and improves user experience.

Link re-establishment method, apparatus, and system

Embodiments of this application provide a security protection method in an in-vehicle system and a device, relate to the field of internet of vehicles technologies, to deploy a first security protection module on an electronic control unit, deploy a second security protection module on a domain controller, and deploy a third security protection module on a gateway based on security level requirements of the gateway, the domain controller, and the electronic control unit, so that the gateway, the domain controller, and the electronic control unit have different security levels. A security level of the first security protection module is a first security level, a security level of the second security protection module is a second security level, and a security level of the third security protection module is a third security level.

Security protection method in in-vehicle system and device

A signal processing method, a device, and a system are provided, to reduce noise interference generated by a repeater. The method includes a first device that determines a first time domain resource position for transmitting a first signal and sends first control signaling to a second device at or before the start position of the first time domain resource position. The second device receives the first control signaling and enables a signal amplification function based on the received first control signaling.

Signal amplification methods and devices in signal processing

A radio access control method is provided. The method includes a terminal device receiving access control information sent by an access network device, the access control information indicating a barred service type and a barred data transmission attribute to the terminal device. The terminal device determines whether to send a radio resource control connection request to the access network device based on the barred service type and the barred data transmission attribute. The data transmission attribute comprises a transmission scheme type, and the transmission scheme type is used to indicate a transmission scheme used by the terminal device for transmitting service data used by the terminal device, thereby improving network resource utilization.

Radio access control method, apparatus, and system

Embodiments of this application provide a data transmission method and an apparatus, and relate to the communications field, to reduce power consumption and a delay for sending uplink data by a terminal device. The method includes: A terminal device receives a first resource configuration from a network device, where the first resource configuration is used to indicate a first resource, and the first resource is used by the terminal device to send data when the terminal device is in an idle mode; and when the terminal device is in the idle mode and has to-be-sent first uplink data, the terminal device sends the first uplink data to the network device on the first resource. The embodiments of this application are used in an Internet of Things communications system.

Data transmission method and apparatus

A method for early transmission of downlink data and an apparatus are disclosed, to implement early transmission of downlink data, improve utilization of resources, and reduce power consumption of a terminal. The method includes: sending a random access preamble to a network device; receiving a random access response from the network device; sending a message 3 to the network device in response to the random access response, wherein the message 3 carries a first indication, and the first indication is used to indicate a single downlink data packet; and receiving a message 4 from the network device, wherein the message 4 carries downlink data.

Method for early transmission of downlink data and apparatus

A link re-establishment method, an apparatus, and a system are provided. The method includes: obtaining, by user equipment (UE), a MAC of the UE based on a NAS integrity key and a first MAC generation parameter, where the first MAC generation parameter includes an identifier of the UE; sending, by the UE, a re-establishment request message to a target RAN, where the re-establishment request message includes the MAC and the first MAC generation parameter; and receiving, by the UE, a re-establishment response message of the target RAN. The UE triggers, by sending the re-establishment request message, a CP functional entity to perform authentication on the UE. This resolves a prior-art problem that an excessively long time is consumed to re-establish a connection to a target RAN by using an RAU procedure, increases a speed of re-establishing a connection between UE and a network, and improves user experience.

This disclosure provides a service transmission method. The terminal device determines, based on a relationship between radio resource information and transmission characteristic information, a first transmission resource set supporting a first transmission characteristic, when determining to transmit service data by using the first transmission characteristic, selects a direct link transmission resource from the first transmission resource set supporting the first transmission characteristic to transmit the service data, and transmits the service data on the selected direct link transmission resource.

Service transmission method and apparatus

A downlink scheduling data monitoring method, a downlink scheduling data sending method, and an apparatus are provided. The method includes: starting a timer; and after it is determined that the timer expires, monitoring, by using a first discontinuous reception DRX monitoring cycle, downlink scheduling data sent by a base station, where duration of the first DRX monitoring cycle is in a unit of minute or hour. After it is determined that the timer expires, the downlink scheduling data is monitored by using the first DRX monitoring cycle whose duration is in a unit of minute or hour. In this way, not only power consumption is reduced, but also the downlink scheduling data can be monitored.

Downlink scheduling data monitoring method, downlink scheduling data sending method, and apparatus

Embodiments of the present invention provide a radio access control method. The method includes that a terminal device receives access control information sent by an access network device, wherein the access control information indicates a barred service type and a barred data transmission attribute to the terminal device; and the terminal device determines whether to send a radio resource control (RRC) connection request to the access network device based on the barred service type and the barred data transmission attribute; wherein the data transmission attribute comprises a transmission scheme type, the transmission scheme type is used to indicate a transmission scheme used by the terminal device for transmitting service data used by the terminal device. Thereby improving network resource utilization.

Embodiments of this application disclose a resource scheduling method, an access network device, and user equipment, to reduce a quantity of times of applying for an uplink resource by using a random access process, reduce additional signaling overheads brought to the user equipment, and reduce power consumption of the user equipment. The method part in the embodiments of this application includes: determining, by an access network device, a target time interval in which user equipment monitors a downlink control channel; and sending, by the access network device, uplink resource scheduling information to the user equipment by using the downlink control channel in the target time interval.

Method and apparatus for resource scheduling using an access identifier

Example resource configuration methods and apparatus are described. One example resource configuration method includes applying, by a terminal device, to a network device for semi-persistent scheduling. The terminal device receives configuration information sent by the network device, where the configuration information is used to configure a first semi-persistent scheduling resource for the terminal device. The terminal device configures the first semi-persistent resource for the terminal device based on the configuration information, and sends uplink data to the network device on the first semi-persistent scheduling resource.

Resource configuration method and device

This application provides a data transmission method and communications apparatus, to improve transmission efficiency. The method may include obtaining, by a MAC entity of a first communications device from an upper layer, first data on each of at least one first logical channel and second data on each of at least one second logical channel, where a service type or a destination address of the first data is different from a service type or a destination address of the second data. The method may also include generating, by the first communications device, a MAC PDU, where the MAC PDU includes the first data on each first logical channel and the second data on each second logical channel; and sending, by the first communications device, the MAC PDU through a direct link.

Data transmission method and communications apparatus for communication of data from different service types or different destination addresses

The present disclosure discloses a data scheduling method, including: obtaining, by a base station, capability information of user equipment (UE), where a moment of obtaining the capability information of the UE is prior to that of receiving, by the base station, radio resource control (RRC) connection setup complete signaling that is sent by the UE to the base station; and allocating, by the base station, a data scheduling resource to the UE according to the capability information of the UE. By using embodiments of the present disclosure, resource utilization can be increased.

Data scheduling method, base station, and system

This application provides a random access method and apparatus. The method may include determining, by a terminal, a service attribute of to-be-transmitted data, where the service attribute includes one or more of the following: a service type attribute, a service packet attribute, and a service latency attribute. The method may also include sending, by the terminal when the service attribute meets a preset condition for early data transmission, a random access request to a network device using a dedicated resource for the early data transmission. In this way, the early data transmission is initiated after the service attribute meets the preset condition for the early data transmission, so that a quantity of times for which the early data transmission is initiated is reduced, thereby saving resources. In addition, a success rate of the early data transmission can be improved.

Random access method and apparatus

Growing community of inventors

Beijing, China

Yinghui Yu