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US 12,068,876 B2Granted
Communication method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsMeng Li, Yanmei Yang
Life of this patent
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Abstract
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.
Claims19
A communication method, comprising:
- receiving, by a first session management network element, a protocol data unit (PDU) session modification request, wherein the PDU session modification request comprises first identification information of multicast data and identification information of a first PDU session, and the first session management network element is configured to manage a user plane network element corresponding to the first PDU session;
- obtaining, by the first session management network element, quality of service (QoS) context information of the multicast data based on the first identification information of the multicast data;
- and
- sending, by the first session management network element to an access network device, QoS context information of unicast data and identification information of a multicast group corresponding to the multicast data, wherein the identification information of the multicast group corresponding to the multicast data is usable by the access network device for determining the QoS context information of the multicast data;
- wherein obtaining the QoS context information of the multicast data based on the first identification information of the multicast data comprises:
- obtaining, by the first session management network element, identification information of a second session management network element based on the first identification information of the multicast data, wherein the second session management network element manages a multicast user plane network element, and the multicast user plane network element is an anchor for transmitting the multicast data;
- sending, by the first session management network element, second identification information of the multicast data to the second session management network element based on the identification information of the second session management network element;
- and
- receiving, by the first session management network element, the QoS context information of the multicast data from the second session management network element.
6 more elements
A communication apparatus, comprising:
- at least one processor;
- and
- a non-transitory storage medium storing executable instructions, wherein the non-transitory storage medium is coupled to the at least one processor;
- wherein the executable instructions, when executed by the at least one processor, facilitate performance of the following by the communication apparatus:
- receiving a protocol data unit (PDU) session modification request, wherein the PDU session modification request comprises first identification information of multicast data and identification information of a first PDU session, and the communication apparatus is configured to manage a user plane network element corresponding to the first PDU session;
- obtaining quality of service (QoS) context information of the multicast data based on the first identification information of the multicast data;
- and
- sending, to an access network device, QoS context information of unicast data and identification information of a multicast group corresponding to the multicast data, wherein the identification information of the multicast group corresponding to the multicast data is usable by the access network device for determining the QoS context information of the multicast data;
- wherein obtaining the QoS context information of the multicast data based on the first identification information of the multicast data comprises:
- obtaining identification information of a second session management network element based on the first identification information of the multicast data, wherein the second session management network element manages a multicast user plane network element, and the multicast user plane network element is an anchor for transmitting the multicast data;
- sending second identification information of the multicast data to the second session management network element based on the identification information of the second session management network element;
- and
- receiving the QoS context information of the multicast data from the second session management network element.
10 more elements
A communication system, comprising:
- a first session management network element;
- and
- a user plane network element;
- wherein the first session management network element is configured to:
- receive a protocol data unit (PDU) session modification request, wherein the PDU session modification request comprises first identification information of multicast data and identification information of a first PDU session, and the first session management network element is configured to manage the user plane network element;
- obtain quality of service (QoS) context information of the multicast data based on the first identification information of the multicast data;
- and
- send, to an access network device, QoS context information of unicast data and identification information of a multicast group corresponding to the multicast data, wherein the identification information of the multicast group corresponding to the multicast data is usable by the access network device for determining the QoS context information of the multicast data;
- and
- wherein the user plane network element corresponds to the first PDU session;
- wherein obtaining the QoS context information of the multicast data based on the first identification information of the multicast data comprises:
- obtaining identification information of a second session management network element based on the first identification information of the multicast data, wherein the second session management network element is configured to manage a multicast user plane network element, and the multicast user plane network element is an anchor for transmitting the multicast data;
- sending second identification information of the multicast data to the session management network element based on the identification information of the second session management network element;
- and
- receiving the QoS context information of the multicast data from the second session management network element.
12 more elements
A non-transitory computer-readable medium having processor-executable instructions stored thereon for a communication method for a first session management network, wherein the processor-executable instructions, when executed, facilitate performance of the following:
- receiving a protocol data unit (PDU) session modification request, wherein the PDU session modification request comprises first identification information of multicast data and identification information of a first PDU session, and the first session management network element is configured to manage a user plane network element corresponding to the first PDU session;
- obtaining quality of service (QoS) context information of the multicast data based on the first identification information of the multicast data;
- and
- sending, to an access network device, QoS context information of unicast data and identification information of a multicast group corresponding to the multicast data, wherein the identification information of the multicast group corresponding to the multicast data is usable by the access network device for determining the QoS context information of the multicast data;
- wherein obtaining the QoS context information of the multicast data based on the first identification information of the multicast data comprises:
- obtaining identification information of a second session management network element based on the first identification information of the multicast data, wherein the second session management network element is configured to manage a multicast user plane network element, and the multicast user plane network element is an anchor for transmitting the multicast data;
- sending second identification information of the multicast data to the second session management network element based on the identification information of the second session management network element;
- and
- receiving the QoS context information of the multicast data from the second session management network element.
6 more elements
Dependencies are inferred from the claim text.