Abstract: The present disclosure provides an information reporting method, an information processing method, a UE, a network side device and a core network device. The information reporting method includes: recording failure-related information generated when a failure occurs in the UE, the failure-related information including tracking area information about a first network side device where the failure occurs in the UE; and reporting the failure-related information to a second network device to which the UE accesses.

Abstract: The present application provides a cell handover method which includes: receiving a first message transmitted by a first cell, where the first message indicates the terminal to perform a cell handover with an enhanced handover characteristic or a cell handover with a non-enhanced handover characteristic, and the cell handover with the enhanced handover characteristic includes a conditional handover (CHO) or a dual active protocol stack (DAPS) handover; performing a handover from the first cell to a second cell according to the first message; receiving a second message transmitted by the second cell, where the second message indicates the terminal to perform the cell handover with the enhanced handover characteristic; and performing a handover from the second cell to a third cell according to the second message, and generating an RLF report and recording timing duration in the RLF report if an RLF occurs in the second cell.

Abstract: Provided in embodiments of the present disclosure are a method and apparatus for determining a DAPS handover failure type. The method includes receiving DAPS handover failure related information sent by a terminal; and determining a DAPS handover failure type on the basis of the DAPS handover failure related information. In the embodiments of the present disclosure, a DAPS handover failure type is determined on the basis of DAPS handover failure related information reported by a terminal, which is suitable for a situation in which both a source cell side connection and a target cell side connection may fail in a DAPS handover process, implementing mobility robustness optimization for a DAPS handover process, assisting network optimization, and improving the handover success rate.

Abstract: The present application discloses a handover method and device. In embodiments of the present application, first, a DU determines that an inter-CU handover is required and then sends an F1 interface establishment request to a target CU, the F1 interface establishment request indicating that the reason for the establishment is the inter-CU handover for the DU; upon receiving the F1 interface establishment request sent from the DU, the target CU returns an F1 interface establishment response to the DU; upon receiving the F1 interface establishment response returned by the target CU, the DU sends to a source CU a message for instructing the DU to perform the inter-CU handover; and then, the DU is handed over from the source CU to the target CU.

Abstract: 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.

Abstract: The present disclosure provides a method of reporting radio link failure information, a method of obtaining radio link failure information, a terminal, and a network side device. The method of reporting radio link failure information, applied to a terminal, includes: recording radio link failure (RLF) information, in a process of the terminal performing a radio resource control (RRC) connection re-establishment or a RRC connection establishment, the RLF information including at least one of: a tracking area code (TAC), a tracking area identifier (TAI) and a system identifier of a terminal access cell, wherein the RLF information is related to a time of RRC connection establishment or RRC connection re-establishment; reporting the RLF information to a network side device.

Abstract: 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.

Abstract: A dual-connectivity handover method, a handover device and a storage medium. The target dual connectivity further comprises a target secondary node. A user terminal communicates with a source node before accessing the target dual connectivity. The method comprises: receiving handover request information, wherein the handover request information carries first information, and the first information is configuration information of the source node for the user terminal, or an index of the configuration information; and sending a first interface message to the target secondary node, wherein the first interface message carries the first information for enabling the target secondary node configure the user terminal according to the first information.

Abstract: 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.

Abstract: Disclosed are a method for modification in dual-connection mode and a device, for use in solving the problem that the communication performance of a terminal is easily reduced after establishment or modification in the current dual-connection architecture. The method for modification in dual-connection mode provided in the present application comprises: an MN determines an SN for flow transfer, the MN sending to the SN a transfer instruction carrying the indication information of the PDU session to which the flow belongs, so that the SN determines, according to the received transfer instruction, whether to receive the flow transferred by the MN, wherein the indication information of the PDU session is used for indicating whether the MN transfers part or all of the flow under a PDU session. The method effectively improves the communication performance of a terminal in a communication process.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Embodiments of the present application relate to the technical field of communication and provide a communication system handover method, a network device, an apparatus and a medium, for handover of the communication system of a terminal. The method comprises: 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. In this way, the first indication information about whether a source node supports direct data forwarding or not is sent to the target NG-RAN node, so that the NG-RAN node knows whether the source node supports direct data forwarding, to achieve the purpose that the decisions of a node of an EPS system and a node of a 5G system on the data forwarding mode are consistent.

Abstract: The present disclosure discloses a signaling exchange method, a base station and an apparatus. The method includes exchanging, by a base station information with other base stations, the information containing a list of base stations interfacing with the base station and/or load information of cells under the base stations interfacing with the base station; or the information containing load information, the load information being determined partially according to load-related information of cells under the base station and/or load information of cells under base stations configured to establish a dual connection for a terminal and interfacing with the base station.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.