公开(公告)号：US20250024547A1

公开(公告)日：2025-01-16

申请号：US18897521

申请日：2024-09-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Meng LI ,  Wenfu WU ,  Zaifeng ZONG ,  Fenqin ZHU

IPC: H04W76/27 ,  H04W68/02 ,  H04W76/40

Abstract: Embodiments of this application provide a multicast/broadcast service communication method, an apparatus, and a system. The method includes: a first terminal device receives first information, where the first information indicates activation or release of a first multicast/broadcast session, the first terminal device joins the first multicast/broadcast session, the first terminal device is in a radio resource control inactive state, and the first multicast/broadcast session is used for transmitting a first multicast/broadcast service; and the first terminal device enters a connected state or keeps in the radio resource control inactive state based on the first information. According to the method, a terminal device that is in a radio resource control inactive state and that is allowed to receive a multicast/broadcast service in this state does not enter a connected state, thereby helping reduce network overheads.

公开(公告)号：US20230188949A1

公开(公告)日：2023-06-15

申请号：US18163697

申请日：2023-02-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG

IPC: H04W4/06 ,  H04W68/00

CPC classification number: H04W4/06 ,  H04W68/005

Abstract: Embodiments of this application disclose a communication method, apparatus, and system. An example communication method includes: receiving, by an access network device from an access and mobility management function network element, information indicating to activate a multicast session corresponding to a multicast service; and sending, by the access network device based on the information, a paging message to a terminal in a radio resource control_inactive (RRC_inactive) state in the multicast session corresponding to the multicast service.

公开(公告)号：US20240365275A1

公开(公告)日：2024-10-31

申请号：US18764535

申请日：2024-07-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG ,  Xiaodong HU ,  Runze ZHOU

IPC: H04W64/00 ,  H04W8/22 ,  H04W68/02

CPC classification number: H04W64/00 ,  H04W8/22 ,  H04W68/02

Abstract: The present disclosure relates to positioning methods and communication apparatuses. In an example method, a first location management network element performs first positioning processing on a measured device to obtain first location information. The first location management network element requests a first network element in which a positioning reference device exists to determine one or more first positioning reference devices. The first positioning reference device performs second positioning measurement to obtain second positioning measurement information. The first positioning reference device sends the second positioning measurement information to the first location management network element.

公开(公告)号：US20220408162A1

公开(公告)日：2022-12-22

申请号：US17892119

申请日：2022-08-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG

IPC: H04N21/6405 ,  H04N21/6408 ,  H04N21/266

Abstract: This application provides a multicast service transmission method and apparatus, to deliver a multicast service regardless of whether there is a device supporting multicast in a system, so as to improve flexibility and reliability of the multicast service transmission. The method performed by a session management network element includes: receiving a first message or a second message, where the first message requests to add a terminal device to a multicast service, the second message is used to update a PDU session of the terminal device, and the PDU session is associated with the multicast service; and determining, based on multicast capability information of the terminal device and/or multicast capability information of an access network device, a delivery mode of the multicast service, where the access network device is an access network device currently accessed by the terminal device or a target access network device of the terminal device.

公开(公告)号：US20230067900A1

公开(公告)日：2023-03-02

申请号：US17982935

申请日：2022-11-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG

IPC: H04W72/00 ,  H04W4/06

Abstract: A communication method and apparatus, and a storage medium are provided, to resolve a problem in a conventional technology of discontinuity of a multicast/broadcast service of a UE during handover. The method includes: A target access network device receives first multicast/broadcast service data from a source access network device and second multicast/broadcast service data from a core network device; and if determining that the first multicast/broadcast service data is synchronous with the second multicast/broadcast service data, the target access network device sends the second multicast/broadcast service data to a terminal device, so that the continuity of the multicast/broadcast service of the UE during handover is ensured as much as possible.

公开(公告)号：US20230029292A1

公开(公告)日：2023-01-26

申请号：US17953500

申请日：2022-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG

IPC: H04W36/18 ,  H04W36/00

Abstract: A data transmission method and apparatus. The method includes: a source access network device that receives an end marker from a core network device through a transmission tunnel of a PDU session of a first terminal device, where the PDU session is associated with a first multicast/broadcast service; and in response to the end marker, the source access network device determines, based on the association between the PDU session and the first multicast/broadcast service, that the end marker acts on the first multicast/broadcast service of the first terminal device, to stop sending data of the first multicast/broadcast service to a target access network device through a forwarding tunnel of the first terminal device.

公开(公告)号：US20230164640A1

公开(公告)日：2023-05-25

申请号：US18152985

申请日：2023-01-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianxin JIA ,  Wenfu WU ,  Zaifeng ZONG

IPC: H04W36/00 ,  H04W76/30

CPC classification number: H04W36/0007 ,  H04W36/0016 ,  H04W76/30

Abstract: A communication method and apparatus. A first access network device determines that a first terminal device is a last terminal device that receives data of a first multicast service via the first access network device in response to the first terminal device being in a handover preparation phase in which the first terminal device is handed over from the first access network device to a second access network device. The first access network device sends first information that is used to release a first tunnel. The first tunnel is used to transmit the data of the first multicast service between the first access network device and a core network device.