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公开(公告)号：US20230308972A1
公开(公告)日：2023-09-28
申请号：US18013888
申请日：2021-05-13
Inventor： Jiancheng SUN , Ye ZHOU , Dajun ZHANG , Aijuan LIU
CPC classification number: H04W36/08 , H04W36/0072 , H04W36/00835
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. According to the present method, the DU can be handed over from the source CU to the target CU, such that under CU-DU separated network architecture, when the source CU cannot provide network services for the DU, the DU is handed over to the target CU that can provide network services for the DU, thereby improving the communication quality of UEs served by the DU.
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公开(公告)号：US20240080720A1
公开(公告)日：2024-03-07
申请号：US18261662
申请日：2022-01-10
Inventor： Ruiwei WANG , Aijuan LIU
CPC classification number: H04W36/0055 , H04W36/305 , H04W36/362
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.
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3.发明申请公开(公告)号：US20220322167A1
公开(公告)日：2022-10-06
申请号：US17634429
申请日：2020-08-14
Inventor： Aijuan LIU
IPC: H04W36/00
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.
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公开(公告)号：US20220159520A1
公开(公告)日：2022-05-19
申请号：US17439079
申请日：2020-02-27
Inventor： Ye ZHOU , Aijuan LIU , Ying WANG
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.
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公开(公告)号：US20220104092A1
公开(公告)日：2022-03-31
申请号：US17426073
申请日：2019-12-20
Inventor： Aijuan LIU , Nan YAN , Jing LIANG
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.
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Patent Agency Ranking
公开(公告)号：US20210385705A1
公开(公告)日：2021-12-09
申请号：US17287995
申请日：2019-09-03
Inventor： Aijuan LIU , Jing LIANG
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.
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7.发明公开公开(公告)号：US20240195578A1
公开(公告)日：2024-06-13
申请号：US18553541
申请日：2022-04-06
Inventor： Ye ZHOU , Aijuan LIU
CPC classification number: H04L5/0053 , H04W72/23 , H04W92/04
Abstract: The present application provides a data processing method and apparatus, a network device, a storage medium and a program product. The method is applied to a first network element in a radio access network, and includes: receiving a downlink data packet, where the downlink data packet includes downlink user data and an identifier of a data flow to which the downlink user data belongs; and transmitting a first interface message to a second network element in the radio access network, where the first interface message includes the identifier of the data flow, and the first interface message is used for determining a target bearer to which the data flow is mapped. Thereby, it is ensured that data on a data flow can be transmitted in the manner of meeting a QoS requirement thereof.
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8.发明公开公开(公告)号：US20240129773A1
公开(公告)日：2024-04-18
申请号：US17768843
申请日：2020-11-11
Inventor： Nan YAN , Aijuan LIU , Ruiwei WANG
CPC classification number: H04W24/10 , H04W36/305
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.
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9.发明公开公开(公告)号：US20230156843A1
公开(公告)日：2023-05-18
申请号：US17917121
申请日：2021-03-24
Inventor： Ruiwei WANG , Aijuan LIU , Nan YAN
CPC classification number: H04W76/19 , H04W24/08 , H04W24/10 , H04W36/0079 , H04W8/02
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.
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公开(公告)号：US20220295358A1
公开(公告)日：2022-09-15
申请号：US17635069
申请日：2020-08-12
Inventor： Aijuan LIU , Jing FU , Nan YAN
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.
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