Datang Mobile Communications Equipment Co., Ltd.

China Academy of Telecommunications Technology

Aijuan Liu

Dajun Zhang

Ying Wang

Jing Liang

Fangli Xu

Jing Fu

Jiancheng Sun

Yan Wang

Jiamin Liu

Nan Yan

Ye Zhou

Chen Wang

Hucheng Wang

Bin Jiao

Yumin Wu

Qiang Deng

Ruiwei Wang

Disclosed in the present application are a method and device for data forwarding. The method includes: sending to a second wireless access network node a first interface message requesting to modify the node; receiving a second interface message returned by the second wireless access network node, where the information in the second interface message includes first radio resource control (RRC) configuration information and first data forwarding and distribution information used for indicating first data that needs data forwarding; and sending a third interface message carrying the information in the second interface message to a third wireless access network node, to request the third wireless access network node to receive the first data forwarded from the second wireless access network node.

Method and device for data forwarding

Disclosed are a method for modification in dual-connection mode and a device. The method for modification in dual-connection mode provided includes: an MN determines an SN to which at least one flow is to be transferred, the MN sending to the SN a transfer instruction carrying the indication information of the PDU session to which the at least one flow belongs, the transfer instruction is used for the SN to determine whether to receive the flow transferred by the MN, the indication information of the PDU session is used for indicating that the at least one flow includes part or all of the flow under a PDU session.

Method for modification in dual-connection mode and device

Provided in the embodiments are an information processing method, an information processing device, an apparatus, and a computer-readable storage medium. The information processing method includes: obtaining first information in the case that a handover process has been initiated for a UE in a DC state, the first information being used to indicate whether an SN supports direct data forwarding between the SN and a target node; and performing corresponding handover processing in accordance with the first information.

Information processing method, device and apparatus, and computer-readable storage medium

Embodiments of the present application relate to the field of communication and provide a method, a network device, and an apparatus for communication system handover, and a medium, for handover of the communication system of a terminal. The method includes: includes an AMF sends a handover request carrying first indication information to an NG-RAN node corresponding to an identifier of a target NG-RAN node; and the NG-RAN node determines the address of data forwarding according to the first indication information.

Method, network device, and apparatus communication system handover, and medium

Embodiments of the present application provide a mobility robustness implementation method, a device, and an apparatus, used to detect unnecessary handover from a 5GS to an EPS. The method comprises: a first network-side apparatus determining first measurement information after a terminal has performed inter-system handover; and sending the determined first measurement information to a second network-side apparatus, such that the second network-side apparatus notifies, according to the first measurement information, the terminal to continue measuring a cell signal under a source system of the inter-system handover. In the method, when inter-system handover occurs, the first network-side apparatus enables the terminal to continue measuring the cell signal under the source system by means of the first measurement information, thereby determining whether the terminal has performed an unnecessary handover.

Mobility robustness implementation method, device, and apparatus

A data forwarding method and device, a master base station and a slave base station are provided. The data forwarding method includes: after receiving a handover request message sent by a second master base station, if it is determined that a slave base station node is newly added, a service data adaptation protocol (SDAP) layer of a part of flows of a preset protocol data unit (PDU) session is configured at a master base station node, and an SDAP layer of the rest part of flows of the preset PDU is configured at the newly added slave base station node, sending a handover request response message carrying first preset information to a second master base station. The first preset information includes: first identity identifications of all flows configured for the first master base station and data forwarding addresses corresponding to the first identity identifications, and second identity identifications of all flows configured for the newly added first slave base station and data forwarding addresses corresponding to the second identity identifications.

Data forwarding method and device, master base station and slave base station

The present application relates to the field of communications, and disclosed are a handover method, a handover device and a computer readable storage medium. In the embodiments of the present application, by means of carrying first indication information in a handover request message sent by a base station where a source cell is located to a base station where a target cell is located, a recommendation may be provided to the target cell when determining whether to establish a dual connection, so that when the current cell handover is relatively urgent, cell handover may be immediately carried out by preventing the target cell from establishing the dual connection, reducing the probability of handover failure, and improving the user experience.

Handover method, handover device and computer readable storage medium

An information reporting method and apparatus, terminal and network-side device are provided. One implementation of the information reporting method is applied to a terminal and includes: reporting, in a case that that an abnormality is detected in a master cell group (MCG), MCG abnormality information via a signaling radio bearer 3 (SRB3).

Information reporting method and apparatus, terminal and network-side device

The present disclosure provides a method for activating a packet data convergence protocol (PDCP) duplication and a node device. The method includes: receiving, by a second node, a notification message transmitted by a first node when the first node configures a PDCP duplication for a bearer; after the second node receives the notification message, changing or determining, by the second node, an activation or deactivation state of uplink (UL) PDCP duplication of the bearer.

Method for activating packet data convergence protocol duplication and node device

The present application can provide a method and device for determining an RRM measurement configuration. The method includes a first node receiving resource information sent by a second node and used by at least one RRM measurement corresponding to a neighbor node of the second node; and determining an RRM measurement configuration required for a UE to perform an RRM measurement according to the resource information used by the at least one RRM measurement.

Method and device for determining RRM measurement configuration

A method and a device for tight interworking processing, and a base station are provided, which relate to the technical field of communications. The method for tight interworking processing, applied to a first base station, includes: transmitting association information between a first cell and a second cell to a second base station; where the first cell is a cell belonging to the first base station, and the second cell is a cell requested by the first base station and belonging to the second base station.

Method and device for tight interworking processing, and base station

Disclosed in the present application are a handover method and apparatus, relating to the field of communications, and being used for reducing the interruption time of data transmission in a distributed unit DU handover process when the central unit control plane/central unit user plane CU-CP/CU-UP in a base station are separated, enhancing the user experience. In the handover method provided in the embodiments of the present application, a notification sent by the CU-CP to the CU-UP not only carries tunnel switching instruction information, but also comprises maintenance instruction information, the maintenance instruction information instructing the CU-UP to continue sending downlink data by means of the original downlink tunnel, such that downlink data can still be received when the user device is not yet connected to a target DU, thereby reducing the interruption time of data transmission during the DU handover process, and enhancing the user experience.

Handover method and apparatus

A layer 2 processing method, a CU and a DU are provided. The layer 2 processing method includes: sending channel reconstruction indication information to the DU; receiving a response message sent by the DU; generating an RRC reconfiguration message based on the response message; and sending the RRC reconfiguration message to a UE, and performing, by the UE, a corresponding operation.

Layer 2 processing method, central unit and distributed unit

Provided in embodiments of the present disclosure a QoS processing method and a QoS processing device. The QoS processing method includes transmitting, by a target base station, a first message to a source base station. The first message at least comprises first information and second information; the first information is configured for notifying the source base station that the target base station is incapable of meeting a QoS requirement on one or more flows of a UE; and the second information is information of a QoS parameter capable of being accepted by the target base station and recommended with respect to the one or more flows.

Quality of service processing method and device

Disclosed are a system message notification and sending method and apparatus. The method comprises: a CU determines system message relevant information; and the CU sends the system message relevant information to a DU. The DU receives the system message relevant information sent by the CU; and the DU notifies a terminal of the information. The present application provides an access control and system message processing solution under a CU-DU architecture, and a CU can provide sufficient auxiliary information to a DU, and thus the DU can generate suitable system information according to same. The two coordinate to provide a service to a UE, and the system efficiency is improved and a good user experience is ensured.

Growing community of inventors

Beijing, China

Aijuan Liu