Data transmission method for edge multimedia broadcast/multicast service (MBMS) service and related device
AssigneeHuawei Technologies Co., Ltd.
InventorsYihe Hou, Yan Wang
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Abstract
The present disclosure discloses a data transmission method for an edge MBMS service and a related device. The method includes providing an MBMS service data transmission system that includes a central BM-SC located on a core network and an edge BM-SC and an MBMS GW that are located on a network edge; creating, by the central BM-SC, a control-plane bearer context; sending a session start request to the edge BM-SC, so that the edge BM-SC creates a user-plane bearer context; receiving a session start response sent by the edge BM-SC; and delivering a service key to the edge BM-SC, so that the edge BM-SC encrypts data of the edge MBMS service by using the service key and sends data to UE via the MBMS GW.
Claims14
A data transmission method for an edge multimedia broadcast/multicast service (edge MBMS) service, the method comprising:
- receiving, by an edge broadcast/multicast service center (edge BM-SC), a session start request from a central broadcast/multicast service center (central BM-SC), wherein the session start request comprises a temporary mobile group identity (TMGI) of the edge MBMS service, wherein the central BM-SC and an MBMS gateway (MBMS GW) control-plane functional entity are located on a core network, wherein the edge BM-SC and an MBMS gateway (MBMS GW) user-plane functional entity are located on a network edge, and wherein the MBMS GW user-plane functional entity corresponds to the MBMS GW control-plane functional entity;
- creating, by the edge BM-SC, a user-plane bearer context for the edge MBMS service in response to the session start request;
- sending, by the edge BM-SC, the session start request comprising the TMGI to the MBMS GW control-plane functional entity, wherein the session start request is used for requesting allocation of an Internet Protocol (IP) multicast address and creation of a control-plane bearer context for the edge MBMS service;
- receiving, by the edge BM-SC, a session start response from the MBMS GW control-plane functional entity, wherein the session start response comprises the TMGI;
- sending, by the edge BM-SC, the session start response to the central BM-SC;
- receiving, by the edge BM-SC, data of the edge MBMS service from a content server located on the network edge;
- receiving, by the edge BM-SC, a service key delivered by the central BM-SC;
- encrypting, by the edge BM-SC, the data of the edge MBMS service by using the service key to generate encrypted data;
- and
- sending, by the edge BM-SC, the encrypted data of the edge MBMS service to a user equipment (UE) via the MBMS GW user-plane functional entity in accordance with the IP multicast address allocated by the MBMS GW control-plane functional entity.
A communications system for an edge multimedia broadcast/multicast service (edge MBMS) service, comprising:
- a central broadcast/multicast service center (central BM-SC) located on a core network, wherein the central BM-SC is configured to:
- allocate a temporary mobile group identity (TMGI) to the edge MBMS service;
- create a control-plane bearer context for the edge MBMS service, wherein the control-plane bearer context comprises the TMGI;
- transmit a session start request comprising the TMGI;
- and
- generate a service key;
- and
- an edge broadcast/multicast service center (edge BM-SC) located on a network edge, communicatively coupled to the central BM-SC, wherein the edge BM-SC is configured to:
- receive the session start request from the central BM-SC;
- in response to the session start request, create a user-plane bearer context for the edge MBMS service;
- send the session start request comprising the TMGI to an MBMS gateway (MBMS GW) control-plane functional entity;
- receive a session start response from the MBMS GW control-plane functional entity, wherein the session start response comprises the TMGI;
- receive data of the edge MBMS service from a content server located on the network edge;
- receive the service key delivered by the central BM-SC;
- encrypt the data of the edge MBMS service by using the service key to generate encrypted data;
- and
- transmit the encrypted data of the edge MBMS service to a user equipment (UE).
Dependencies are inferred from the claim text.