Method and system for multicast and broadcast services
AssigneeHuawei Technologies Co., Ltd.
InventorsNgoc Dung DAO, Xu LI
Life of this patent
Estimating the term…
Abstract
A method of MB delivery of Downlink (DL) MB Data to a plurality of Electronic Devices (EDs) connected to a (Radio) Access Network (R)AN node, the method comprises: storing the DL MB Data in a buffer of the (R)AN node; and transmitting, by the (R)AN node, the DL MB Data to the plurality of EDs.
Claims18
A method of multicast/broadcast (MB) session establishment, the method comprising:
- receiving, by a session management function (SMF), a request for a MB session establishment;
- selecting, by the SMF, an access and mobility management function (AMF) according to the request;
- sending, by the SMF, a notification indicating the MB session establishment to a plurality of electronic devices (EDs) via the selected AMF;
- and
- receiving, by the SMF, an acknowledgement from at least one of the selected AMF and at least one of the plurality of EDs.
A method of multicast/broadcast (MB) session establishment, the method comprising:
- receiving, by an access and mobility management function (AMF), a request for a MB session establishment from a network exposure function (NEF);
- sending, by the AMF, a request to a network repository function (NRF) to provide session management function (SMF) information for SMF selection;
- and
- requesting, by the AMF, a MB session establishment to a selected SMF.
A method of multicast/broadcast (MB) delivery, the method comprising:
- receiving, by a network exposure function (NEF), a request for a MB session establishment from an application function;
- notifying a session management function (SMF), by the NEF, of the request for the MB session establishment;
- receiving and buffering downlink MB data of a MB session;
- receiving information, by the NEF, associated with a user plane (UP) function (UPF) which is responsible for transmitting the downlink MB data of the MB session;
- and
- transmitting the downlink MB data to a RAN node via the UPF.
A method of multicast/broadcast (MB) delivery, the method comprising:
- storing downlink (DL) MB data associated with a MB session in a buffer of a radio access network (R)AN node;
- transmitting, by the (R)AN node, the DL MB data to a plurality of electronic devices (EDs) connected to the (R)AN node;
- receiving, by the (R)AN node, a retransmission request from at least one of the plurality of EDs after the MB data associated with the MB session has been transmitted;
- and
- retransmitting at least a part of the MB data associated with the MB session, by the (R)AN node, according to the retransmission request.
A method of multicast/broadcast (MB) delivery, comprising:
- receiving, by an electronic device (ED), downlink (DL) multicast/broadcast (MB) data associated with a MB session from a radio access network (R)AN node of the network;
- if a part of the DL MB data is missing, requesting the (R)AN node to retransmit the missing part of the DL MB data;
- and
- receiving, by the ED, a retransmission of the part of the DL MB data from the (R)AN node.
Dependencies are inferred from the claim text.