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公开(公告)号：US12108307B2
公开(公告)日：2024-10-01
申请号：US17331303
申请日：2021-05-26
发明人： Meng Li , Yanmei Yang
摘要： Embodiments of this application disclose a communications method, apparatus, and system. Specifically, after receiving information about a multicast area from a sender of a multicast service, a first core network device in a first network obtains, based on the information, indication information indicates that the first network cannot support the multicast service in the multicast area, or indicates that the first network supports the multicast service in a portion of areas of the multicast area; and sends the indication information to the sender. In this way, the sender of the multicast service can determine whether the first network supports the multicast service in the multicast area.
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公开(公告)号：US12068876B2
公开(公告)日：2024-08-20
申请号：US17899275
申请日：2022-08-30
发明人： Meng Li , Yanmei Yang
IPC分类号： H04L12/18
CPC分类号： H04L12/184 , H04L12/1845
摘要： A communication method for transmitting multicast data by using a same multicast user plane function (UPF) includes: a first session management function (SMF) obtains forwarding configuration information or quality of service (QoS) context information of multicast data, and sends, to a second SMF, first path information for establishing a transmission path for multicast data transmission between a multicast UPF and a unicast UPF, or second path information for establishing a transmission path between the multicast UPF and an access network device.
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公开(公告)号：US20240244711A1
公开(公告)日：2024-07-18
申请号：US18621110
申请日：2024-03-29
IPC分类号： H04W76/40 , H04W72/0453 , H04W76/20
CPC分类号： H04W76/40 , H04W72/0453 , H04W76/20
摘要： This disclosure provides a communication method and apparatus. The method includes: A multicast session management network element receives first information of a first multicast service from an application server, where the first information indicates at least one of the following: a first service area of the first multicast service, a type of the first multicast service, or the first multicast service. The multicast session management network element sends a service area identifier of the first multicast service to the application server based on the first information. In this way, the application server may obtain the service area identifier of the first multicast service, namely, a service area identifier (SAI) of the first multicast service when the application server does not learn of network topology information.
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公开(公告)号：US12041501B2
公开(公告)日：2024-07-16
申请号：US17520411
申请日：2021-11-05
发明人： Shengfeng Xu , Jiangwei Ying , Meng Li , Yanmei Yang
CPC分类号： H04W36/08 , H04W12/06 , H04W36/00837 , H04W72/1263 , H04W92/10 , H04W92/18
摘要： Example communication methods apparatus are described. One example method includes receiving air interface link signal information of neighboring network devices by a source network device from a terminal device. The source network device determines a target network device based on sidelink information of the terminal device and the air interface link signal information of the neighboring network devices. Then, the source network device may send a handover request to the target network device, so that the terminal device can be handed over from the source network device to the target network device. Therefore, the target network device determined by the source network device can better meet an air interface link communication requirement and a sidelink communication requirement of the terminal device.
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公开(公告)号：US20230371049A1
公开(公告)日：2023-11-16
申请号：US18360852
申请日：2023-07-28
发明人： Meng Li , Yanmei Yang
IPC分类号： H04W72/30 , H04W76/12 , H04W72/543
CPC分类号： H04W72/30 , H04W76/12 , H04W72/543
摘要： This disclosure provides a multicast service transmission method and apparatus, to avoid a resource waste and help save resources. The method is applied to a scenario in which a terminal device moves from a source access network device to a target access network device. The method includes: obtaining multicast capability information of the target access network device; and sending information about a multicast session to the target access network device when the multicast capability information indicates that the target access network device supports multicast, where the information about the multicast session is used for allocating a transmission resource to the multicast session, and the multicast session is used for transmitting data of a multicast service corresponding to the terminal device.
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公开(公告)号：US11800481B2
公开(公告)日：2023-10-24
申请号：US16988927
申请日：2020-08-10
发明人： Jiangwei Ying , Yanmei Yang , Meng Li , Dario Serafino Tonesi
CPC分类号： H04W60/04 , H04W4/021 , H04W4/40 , H04W84/042
摘要： This application discloses a communication method and a communications apparatus. The method includes: receiving, by a mobility management network element, a registration request message from a terminal, where the registration request message is used to request a vehicle-to-everything V2X configuration parameter for the terminal, and the V2X configuration parameter is used by the terminal to perform a V2X service; sending, by the mobility management network element, a parameter request message to a V2X parameter configuration network element based on the registration request message, where the parameter request message is used to request the V2X configuration parameter of the terminal from the V2X parameter configuration network element; and receiving, by the mobility management network element, the V2X configuration parameter from the V2X parameter configuration network element, and sending the V2X configuration parameter to the terminal. Use of this application helps improve security of the V2X service.
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公开(公告)号：US11765624B2
公开(公告)日：2023-09-19
申请号：US17903711
申请日：2022-09-06
发明人： Jiangwei Ying , Yanmei Yang , Meng Li
摘要： This application discloses example communications methods and apparatuses. One example method includes receiving a first request message from a terminal, where the first request message is used to request information used for PC5 interface-based communication of the terminal. A second request message can be sent to a policy and charging function network element based on the first request message, where the second request message is used to request the information used for the PC5 interface-based communication. A quality of service (QoS) rule used for the PC5 interface-based communication can then be received from the policy and charging function network element. The QoS rule can then be sent to the terminal based on the first request message, where the apparatus is a mobility management network element or located in a mobility management network element.
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公开(公告)号：US11470671B2
公开(公告)日：2022-10-11
申请号：US17066927
申请日：2020-10-09
发明人： Jiangwei Ying , Yanmei Yang , Meng Li , Hui Ni , Yan Wang
摘要： This application provides a communication method and apparatus, to resolve a problem that a PDU session of a terminal in an inactive mode fails to be activated. The method performed by a first core network device includes: sending first downlink information to a first RAN node, where the first downlink information is used by the first RAN node to activate a PDU session of a terminal, and the PDU session is in an inactive state; receiving indication information from the first RAN node, where the indication information indicates that the PDU session fails to be activated; and sending second downlink information to a second RAN node based on the indication information, where the second downlink information is used by the second RAN node to activate the PDU session of the terminal. This application relates to the field of communications technologies.
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公开(公告)号：US11202250B2
公开(公告)日：2021-12-14
申请号：US16569735
申请日：2019-09-13
发明人： Meng Li , Qiang Deng , Zhenglei Huang , Yanmei Yang
摘要： A communication method, including, when a terminal device is in an idle mode or an inactive mode, a first control plane functional entity that obtains access network information of the terminal device and sends context information of the terminal device to an access network device corresponding to the access network information. Therefore, when the terminal device is in the idle mode or the inactive mode, the first control plane functional entity obtains the access network information of the terminal device and pre-sends the context information of the terminal device to the access network device corresponding to the access network information. When the terminal device needs to transmit data, the terminal device does not need to wait for the process of transmitting the context information of the terminal device, thereby facilitating reducing a delay.
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公开(公告)号：US20190188837A1
公开(公告)日：2019-06-20
申请号：US16281606
申请日：2019-02-21
发明人： Meng Li , Hai Chen , Jianhua Zheng
IPC分类号： G06T5/00
CPC分类号： G06T5/009 , G06T2207/10024 , G06T2207/20208 , H04N19/85 , H04N21/2343 , H04N21/235
摘要： An image processing method and apparatus, where the method includes determining a maximum value in nonlinear primary color values of all components of each pixel of a first to-be-processed image, determining dynamic parameters of a first transfer function, converting the maximum value of each pixel into a transfer value based on the first transfer function for which the dynamic parameters are determined, calculating a ratio between the transfer value and the maximum value of each pixel, and adjusting a dynamic range for the nonlinear primary color values of all the components of each pixel based on the ratio to obtain nonlinear primary color values of all components of each corresponding pixel of a first target image.
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