Vivo Mobile Communication Co., Ltd.

Yue Ma

Yumin Wu

Xiaodong Yang

Zichao Ji

Li Chen

Siqi Liu

Yu Ding

Xueming Pan

Peng Sun

Qian Zheng

Xiaowan Ke

Jing Liang

This disclosure discloses a method for dual connectivity handover, a terminal, and a network device. The method includes: receiving a handover command sent from a source node, where the handover command carries dual connectivity DC configuration information for the source node and a target node, and single connectivity SC configuration information for the target node; when the DC configuration information is supported, establishing dual connectivity with the source node and the target node based on the DC configuration information; and based on the SC configuration information, disconnecting the connection with the source node in the dual connectivity and maintaining a single connection with the target node.

Method for dual connectivity handover, terminal, and network device

The present disclosure provides a synchronization indication method and device. The method includes: receiving synchronization indication information transmitted by a network device, where the synchronization indication information indicates one or more serving cells as timing reference for a neighboring cell; taking time of a corresponding serving cell as timing reference for the neighboring cell according to the synchronization indication information.

Synchronization indication method and device

A random access method and apparatus, and a communications device are provided, and relates to the field of wireless communications technologies. The random access method includes: receiving, by a terminal, random access configuration information from a network side device, wherein the random access configuration information comprises at least a random access threshold; and selecting, by the terminal, a random access manner according to the random access configuration information.

Random access method and apparatus, and communications device

Embodiments of this disclosure provide a random access method and a device, and relate to the field of communications technologies, to resolve the problem of random access failure existing in the related art. The method includes: initiating second random access after first random access fails, where first uplink data in the first random access and second uplink data in the second random access are the same in data size, the first uplink data is uplink data corresponding to a first resource for the first random access, the second uplink data is uplink data corresponding to a second resource for the first random access, the first random access includes two-step random access or four-step random access, and the second random access includes two-step random access or four- step random access.

Random access method and device

A wireless communication method includes sending indication information to at least one target network side device. The target network side device is a network side device that has established an RRC with the terminal device or that is establishing or resuming an RRC connection with the terminal device, and the indication information is used to indicate that the terminal device does not expect to receive a dual connectivity configuration, and/or the indication information is used to indicate a carrier that the terminal device does not expect to configure.

Wireless communication method and terminal device

A sidelink buffer status report sending method includes: in a case where an uplink resource is not enough to report a total data amount of buffer data of all sidelink logical channels, sending a truncated SL BSR based on preset information of the buffer data, at least one domain of the SL BSR being associated with the preset information; or in a case where an uplink resource is not enough to report a total data amount of buffer data of all sidelink logical channels, sending the SL BSR in at least one SL BSR format based on preset priorities, the SL BSR format being determined based on the preset information of the buffer data.

Sidelink buffer status report sending method, sidelink buffer status report receiving method, and device

An access control method, a base station and a terminal are provided. The method comprises: receiving a system message transmitted by a base station; determining whether to camp on a cell of the base station according to the system message to obtain a determination result; and performing, according to the determination result, a procedure of camping on the cell of the base station or a procedure of not camping on the cell of the base station.

Access control method, base station and terminal

A mobility management method, a User Equipment (UE) and a network side device are provided. The mobility management method includes: receiving core network information about each cell from a network side device, the core network information being used to indicate a type of a core network; and when a UE is in an idle state, performing cell reselection in accordance with the type of the core network for each cell and a capability of the UE for supporting the core network.

Mobility management method, user equipment, and network side device

Provided by the present disclosure are a random access method and a related device, the method comprises: sending a first message to a network-side device; receiving a response message sent by the network side device and carrying target configuration information; there is a correlation between at least part of the target configuration information and relevant parameters, and the relevant parameters are parameters that can be learned before a terminal device receives the response message; and obtaining, according to the correlation, configuration information, in the target configuration information, related with a target relevant parameter of the terminal device.

Random access method and related device

A PDCCH candidate allocation method for cross-carrier scheduling and a device are provided. This method includes: when configuration of a first cell includes search space set configuration or PDCCH candidate quantity configuration thereof, determining a PDCCH candidate quantity and/or a monitoring parameter thereof based on the configuration thereof; or when a first cell has no PDCCH configuration and configuration of a second cell includes only PDCCH configuration thereof, determining a PDCCH candidate quantity and/or a monitoring parameter of the first cell based on the PDCCH configuration of the second cell; or when a first cell has no PDCCH configuration and PDCCH configuration of a second cell includes search space set configuration or PDCCH candidate quantity configuration of the first cell, determining a PDCCH candidate quantity and/or a monitoring parameter of the first cell based on the search space set configuration or PDCCH candidate quantity configuration of the first cell.

PDCCH candidate allocation method for cross-carrier scheduling and device

The disclosure provides a random access resource configuration method, and a network device and a terminal device thereof. The method applied to the terminal device includes: receiving a first resource configured by a network device for the terminal device, where the first resource is used for 2-step random access, and the first resource is different from a resource of normal random access channel.

Random access resource configuration method and device

This disclosure provides a data transmission method and a communications device. The data transmission method includes: generating a plurality of RRC segments by using an RRC segmentation function of an RRC layer entity of the sender communications device or an RRC segmentation function of a new protocol layer entity, where each of the plurality of RRC segments carries partial data content of an RRC message generated by the sender communications device; and sending the plurality of RRC segments to a receiver communications device.

Data transmission method and communications device

A control method and a terminal are provided. The control method includes: acquiring dedicated RRC information and/or system information; performing a control operation on a CORESET and/or CSS according to information carried in the dedicated RRC information and/or system information, wherein the information is related to the CORESET and/or CSS.

Control method and terminal

A method and a device for cell change. The method includes: receiving cell change configuration information sent by a source node, where the cell change configuration information includes at least one of: information for a terminal device to determine a target cell, cell change trigger condition information, a cell change command, and association relationship information related to the cell change; and performing an operation related to the cell change based on the cell change configuration information.

Method and device for cell change

A reconfiguration method, a network device, and a terminal are provided. The reconfiguration method in this disclosure includes: sending, by a first network node, a reconfiguration request of cell change configuration information to a second network node; and obtaining, by the first network node, a reconfiguration response sent by the second network node based on the reconfiguration request.

Growing community of inventors

Chang'an Dongguan, China

Yue Ma