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公开(公告)号:US20240015618A1
公开(公告)日:2024-01-11
申请号:US18026883
申请日:2020-09-18
Applicant: NEC CORPORATION
CPC classification number: H04W36/026 , H04W36/00837 , H04W36/0061 , H04W36/0058 , H04W36/0235 , H04W88/06
Abstract: Embodiments of the present disclosure relate to methods, devices and computer readable media for communications. A method comprises receiving, at a terminal device and from a network device, a first message indicative of a switching condition for the terminal device to switch to a second service providing mode, the terminal device being served by the network device in a first service providing mode. The method further comprises: in accordance with a determination that the switching condition is satisfied, establishing a connection with the network device to be served by the network device in the second service providing mode. In this manner, a dynamic and efficient switching process between multicast mode and unicast mode can be autonomously triggered at the terminal device.
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公开(公告)号:US20250150862A1
公开(公告)日:2025-05-08
申请号:US18838331
申请日:2023-02-27
Applicant: NEC CORPORATION
Inventor: Zhe CHEN , Neeraj GUPTA , Yuhua CHEN
IPC: H04W24/04
Abstract: A communication system is disclosed which includes a distributed base station apparatus comprising a control plane unit, a user plane unit, and a distributed unit. Respective interfaces are set up between the control plane unit and the user plane unit, between the control plane unit and the distributed unit, and between the control plane unit and a core network node. The control plane unit acts as a master control plane unit. The user plane unit or the distributed unit obtains information identifying a further control plane unit to act as a redundant unit in case of a failure the master control plane unit. Corresponding interfaces are set up between the further control plane unit and the user plane unit, between the further control plane unit and the distributed unit, and between the further control plane unit and a core network node for resiliency.
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公开(公告)号:US20250031017A1
公开(公告)日:2025-01-23
申请号:US18714657
申请日:2022-12-06
Applicant: NEC Corporation
Inventor: Zhe CHEN , Yuhua Chen
Abstract: The present invention relates to a wireless communication system and devices thereof operating according to the 3rd Generation Partnership Project (3GPP) standards or equivalents or derivatives thereof. A method performed by a base station (5) for providing Multicast and Broadcast Services (MBS) is disclosed. The method comprises transmit, to a network node, a message including first information identifying a tunnel associated with an MBS session, wherein the message indicates that the tunnel is a shared tunnel; and receive, via the shared tunnel, user plane protocol data unit for the MBS session for transmitting to the UE (3), upon transmitting the message.
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公开(公告)号:US20240365183A1
公开(公告)日:2024-10-31
申请号:US18687640
申请日:2021-08-31
Applicant: NEC CORPORATION
IPC: H04W36/00
CPC classification number: H04W36/0069
Abstract: According to embodiments of the present disclosure, a first device transmits configuration information associated with an Integrated Access Backhaul (IAB) node to a second device. The second device serves as a SN of the IAB node and the IAB node is moving. The configuration information comprises at least one of: a radio link control (RLC) channel of the IAB node, a RLC channel mapping rule of the IAB node or a routing table of the IAB node. In this way, the service interruption can be minimized and mobility robustness is enhanced.
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公开(公告)号:US20250039745A1
公开(公告)日:2025-01-30
申请号:US18716214
申请日:2022-12-06
Applicant: NEC CORPORATION
Inventor: Zhe CHEN , Neeraj Gupta
Abstract: A communication system(1) is disclosed in which a first access network node (base station) receives information indicating whether a second access network node supports Multicast and Broadcast Services (MBS). Interaction such as handover between the first access network node and the second access network node is controlled based on the information.
A communication system(1) is disclosed in which a first access network node (base station) receives information indicating whether a second access network node supports Multicast and Broadcast Services (MBS). Interaction such as handover between the first access network node and the second access network node is controlled based on the information.-
公开(公告)号:US20230247389A1
公开(公告)日:2023-08-03
申请号:US18015615
申请日:2020-07-13
Applicant: NEC CORPORATION
IPC: H04W4/06 , H04L1/1812 , H04L1/08
CPC classification number: H04W4/06 , H04L1/1812 , H04L1/08
Abstract: Embodiments of the present disclosure relate to method, device and computer readable medium of communication. The method comprises determining, at a network device, a data radio bearer associated with a multicast service; and transmitting, to a terminal device, first information comprising an identity of the multicast service and an identity of the data radio bearer. The method further comprises receiving, at the terminal device, the first information from the network device; and performing a communication between the terminal device and the network device based on the first information. In this way, simultaneous transmission of multicast and unicast for a MBMS can be achieved and reliability of the MBMS can be enhanced.
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公开(公告)号:US20250168601A1
公开(公告)日:2025-05-22
申请号:US18841718
申请日:2023-03-16
Applicant: NEC Corporation
Inventor: Zhe CHEN
Abstract: A communication system is disclosed in which Multicast and Broadcast Services (MBS) may be provided via multicast, for user equipment (UE) in an inactive state. A distributed unit of a base station apparatus receives, from a central unit of the base station apparatus, information identifying at least one MBS session and information identifying that the at least one MBS session is to be provided in a cell via multicast for the UE in the inactive state.
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公开(公告)号:US20240064601A1
公开(公告)日:2024-02-22
申请号:US18270004
申请日:2020-12-28
Applicant: NEC CORPORATION
CPC classification number: H04W36/362 , H04W36/08 , H04W36/0055
Abstract: According to embodiments of the present disclosure, a first device receives first information from a second device. The first information is associated with a conditional handover through a source Integrated Access Backhaul (IAB) node to a target IAB node. If the conditional handover is completed at an ancestor IAB node, the first device transmits, to the second device, second information associated with the conditional handover. In this way, it avoids the child IAB node performs the handover before its parent IAB node.
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