Huawei Technologies Co., Limited

Ntt Docomo, Inc.

Future Wei Technologies, Inc.

Beijing Nufront Mobile Multimedia Technology Co. Ltd.

Nit Docomo, Inc.

Yongbo Zeng

Jian Wang

Yu Cai

Da Wang

Bin Liu

Guorong Li

Qun Zhao

Haibo Xu

Satoshi Nagata

Nathan Edward Tenny

Hongcheng Zhuang

Hui Jin

Hiroki Harada

Jing Wang

Lili Zhang

Yongsheng Zhang

Yun Liu

Shimpei Yasukawa

Yiru Kuang

Fenghui Dou

Yanliang Sun

Hongyue Wang

Feifei Wang

Dongshan Bao

Shenfa Liu

Liping Chen

Zhigang Yan

Jun Lei

Le Jin

Lijun Pan

Yubao Zhou

Cheng Qin

Richard Stirling-Gallacher

Yue He

Xiaoyan Duan

Yifan Xue

Bin Hua Liu

Chen Dong

Xiaocui Li

Xiaoli Wang

Bingguang Peng

Yunbo Han

Kai Yuan

Chaofeng Lian

Lingjun Liu

Tao Guo

Zhiqiang Song

Huiyun Dong

A communication method includes a terminal device having a dual-card function that obtains, before passing through a target section and from a network device, network status information of the target section through which the terminal device is about to pass, and determines, in advance based on the network status information, a target subscriber identity module (SIM) card used when the terminal device passes through the target section. Subsequently, before or when the terminal device passes through the target section, the terminal device can switch to the target SIM card in advance for communication.

Communication method and apparatus

A method and an apparatus for obtaining installation information of a network access device. The network access device may be CPE. When a user installs the CPE, after the user uses a terminal device to send a request for obtaining installation information of the CPE to a network device, and to receive the installation information of the CPE that is fed back by the network device, the received installation information of the CPE can be displayed on a display interface.

Method and apparatus for obtaining installation information of network access device

A data transmission method, applied to a first terminal device, includes receiving a first message from a second terminal device, determining a first session parameter based on the first message, determining a first session based on the first session parameter, receiving first data from the second terminal device, and sending the first data to a network device using the first session. The first terminal device may determine, based on the first message from the second terminal device, the first session parameter that meets a service requirement of the second terminal device, determine, based on the first session parameter, the first session that meets the service requirement of the second terminal device, and forward data of the second terminal device to the network device using the first session.

Data transmission method and apparatus

A Physical Random Access Channel (PRACH) resource selection method includes a terminal device receiving N synchronization signal blocks (SSBs) from an access device, determining a target PRACH resource selection manner based on at least one of a service type, a type of a trigger event that triggers random access, a signal strength change status of a reference signal received by the terminal device, mobility of the terminal device, and historical information, and selecting, in the determined selection manner, a target PRACH resource from N PRACH resources corresponding to the N SSBs.

PRACH resource selection method and apparatus

A method of performing a random access procedure includes randomly selecting a backoff time from within a backoff window ranging from 0 to a specified multiple of a random access preamble unit, waiting until a time initialized with the backoff time expires, and retransmitting a random access preamble.

System and method for random access backoffs

A method includes: determining, by a first terminal device, a first resource, where the first resource includes one or more of a resource used by a second terminal device to transmit data, a resource reserved by the second terminal device to transmit data, a resource determined based on the resource used by the second terminal device to transmit data, and a resource determined based on the resource reserved by the second terminal device to transmit data; and skipping, by the first terminal device, using a second resource, or reselecting, by the first terminal device, a resource, if the first resource and the second resource overlap.

Resource selection method and terminal device

Example methods and apparatus for transmitting ACK/NACK information for data are disclosed. One method includes sending a data packet from a base station to a user equipment. A control signaling is transmitted from the base station to the user equipment and is used to indicate a subframe to be used by the user equipment to send ACK/NACK information corresponding to the data packet.

Method for feeding back ACK/NACK information for downlink data and related device

A user apparatus in a mobile communication system includes an allocation means that divides a message that includes control information and data into a plurality of partial messages, and allocates resources included in one or more resource pools to the plurality of partial messages; and a transmission means that transmits the plurality of partial messages using the resources allocated by the allocation means.

User apparatus, and transmission method

A service data transmission method, user equipment, and a network device are provided. The method includes: determining, by a network device, a control message used to indicate at least two SPS configurations, and sending the control message to user equipment; and receiving, by the user equipment, the control message sent by the network device, and activating the at least two SPS configurations based on the control message, where each of the at least two activated SPS configurations is used to transmit corresponding service data. In embodiments of the present invention, at least two SPS configurations can be simultaneously performed, thereby improving service data transmission efficiency.

Service data transmission method, user equipment, and network device

A radio resource configuration adjustment method includes detecting, by user equipment, an overheating problem or that the overheating problem is alleviated, and sending, by the user equipment, a first message to a network device, where the first message is used to notify the network device that the overheating problem occurs in the user equipment or the overheating problem is alleviated; receiving, by the user equipment, a response message sent by the network device, where the response message is used to instruct the user equipment to perform one of the following operations, and the operations include deactivating a secondary serving cell, activating a secondary serving cell, releasing a secondary serving cell, and adding a secondary serving cell; and deactivating, by the user equipment, a secondary serving cell, or activating a secondary serving cell, or releasing a secondary serving cell, or adding a secondary serving cell according to the response message.

Radio resource configuration adjustment method, apparatus, and system

A terminal synchronization method and a terminal relate to the communications field, where the terminal sends synchronization signals in a distributed manner by controlling a sequence for sending the synchronization signals such that terminals in a vehicle to vehicle communications system can have uniform timing. The method includes obtaining, by a terminal, a configurable transmission period for sending a first synchronization signal, and sending, by the terminal, the first synchronization signal based on the configurable transmission period.

Terminal synchronization method and terminal

A resource selection method, an apparatus, and a device, where the method includes determining, by first user equipment (UE), parameter information of a sensing window, where the parameter information includes at least one of a start time, a time span, or a quantity, sensing, by the first UE, the resource in the sensing window according to the parameter information of the sensing window, and selecting, by the first UE, a resource according to a sensing result.

Resource selection method, apparatus, and device

Embodiments of the present invention disclose a communication method and a communications apparatus. In the communication method, a network-side device determines a resource configuration policy. The network-side device determines an operation mode of a terminal based on the resource configuration policy; broadcasts information about a plurality of configured resource pools and the operation mode, so that the terminal performs sending based on the configured one or more resource pools; and determines, based on the operation mode, that the terminal sends information on one or more resource units of the plurality of resource pools. According to the communication method and the communications apparatus provided in the specific embodiments of the present invention, the one or more resource pools are configured for a plurality of carriers for inter-terminal communication, so that the terminal can send a message on the one or more resource pools of the plurality of carriers.

Communication method and communications apparatus

First configuration information is configured for a second device by a first device. The first configuration information is used to indicate a first time-frequency resource allocated by the first device. The first time-frequency resource is different from a second time-frequency resource that is allocated by the first device to a third device in a same group. The first time-frequency resource comprises a third time-frequency resource and a fourth time-frequency resource. The third time-frequency resource is a time-frequency resource used when the first device receives a message sent by the second device. The fourth time-frequency resource is a time-frequency resource used when the first device sends a message to the second device. The third time-frequency resource is different from the fourth time-frequency resource. Control information that includes the first configuration information is sent by the first device.

Resource allocation method and communications device

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Beijing, China

Yongbo Zeng