Multicast service transmission method and device

Abstract

A multicast service transmission method includes: a management device that receives a first message; the management device based on the first message, instructs a gateway device to send a data packet of the first multicast service to the terminal device or the access network device, or the management device instructs a gateway device to stop sending a data packet of the first multicast service to the terminal device or the access network device.

What is claimed is: 
     
         1 . A multicast service transmission method comprising:
 receiving, by a management device, a first message, wherein the first message comprises at least one or more of: an identifier corresponding to a first multicast service, an indication for requesting to receive or terminate the first multicast service, an identifier corresponding to a terminal device requesting to receive or terminate the first multicast service, or an identifier corresponding to an access network device serving the terminal device; and   instructing, by the management device, a gateway device to send a data packet of the first multicast service to the terminal device or the access network device, or instructing, by the management device, a gateway device to stop sending a data packet of the first multicast service to the terminal device or the access network device.   
     
     
         2 . The method according to  claim 1 , wherein the method further comprises:
 updating, by the management device, a multicast member list, wherein the multicast member list comprises at least one or more of: an identifier corresponding to a multicast service whose connection has been established, an identifier corresponding to a terminal device requesting the multicast service whose connection has been established, and an identifier corresponding to an access network device serving the terminal device requesting the multicast service whose connection has been established.   
     
     
         3 . The method according to  claim 1 , wherein the method further comprises:
 instructing, by the management device, the gateway device to establish a connection related to the first multicast service to a network device.   
     
     
         4 . The method according to  claim 1 , wherein the method further comprises:
 sending, by the management device, second configuration information to the access network device, wherein the second configuration information comprises at least one or more of: first indication information used to indicate a mode in which the gateway device sends the data packet of the first multicast service to the access network device, and second indication information used to indicate a mode in which the access network device sends the data packet of the first multicast service to the terminal device, wherein   the mode in which the gateway device sends the data packet of the first multicast service to the access network device comprises that the gateway device sends the data packet of the first multicast service to the access network device in a unicast mode or a multicast mode, and the mode in which the access network device sends the data packet of the first multicast service to the terminal device comprises that the access network device sends the data packet of the first multicast service to the terminal device in a unicast mode or a multicast mode.   
     
     
         5 . The method according to  claim 1 , wherein the method further comprises:
 sending, by the management device, a third message to the access network device, wherein the third message comprises at least one or more of: an indication for adding or deleting a multicast member, an identifier corresponding to an added or deleted terminal device that is served by the access network device and that is in a member of the first multicast service, and the identifier corresponding to the first multicast service; and the member of the first multicast service comprises the terminal device requesting to receive the first multicast service.   
     
     
         6 . A multicast service transmission method comprising:
 receiving, by a gateway device, a data packet of a first multicast service and sent by a network device; and   sending, by the gateway device, the data packet of the first multicast service to an access network device, wherein the sending, by the gateway device, the data packet of the first multicast service to an access network device comprises: sending, by the gateway device, the data packet of the first multicast service to the access network device in a multicast mode, or sending, by the gateway device, the data packet of the first multicast service to the access network device in a unicast mode.   
     
     
         7 . The method according to  claim 6 , wherein the sending, by the gateway device, the data packet of the first multicast service to the access network device in a multicast mode comprises:
 sending, by the gateway device, the data packet of the first multicast service to the access network device through a first channel, wherein the first channel is a channel for transmitting the data packet of the first multicast service; or   sending, by the gateway device, the data packet of the first multicast service to the access network device through a first channel, wherein the first channel is a channel for transmitting data packets of a plurality of different multicast services.   
     
     
         8 . The method according to  claim 6 , wherein the sending, by the gateway device, the data packet of the first multicast service to the access network device in a unicast mode comprises:
 replicating, by the gateway device, a received data packet of the first multicast service according to a quantity of terminal devices requesting to receive the first multicast service, wherein a data packet that is of the first multicast service and that is obtained after the replication comprises a first identifier, and the first identifier is used to indicate a terminal device requesting to receive the data packet of the first multicast service; or   the sending, by the gateway device, the data packet of the first multicast service to the access network device in a multicast mode comprises:   replicating, by the gateway device, a received data packet of the first multicast service according to a quantity of access network devices serving terminal devices requesting to receive the first multicast service, wherein a data packet that is of the first multicast service and that is obtained after the replication comprises a second identifier, and the second identifier is used to indicate the first multicast service.   
     
     
         9 . A multicast service transmission method comprising:
 receiving, by an access network device, a data packet of a first multicast service from a gateway device; and   sending, by the access network device, the data packet of the first multicast service to a terminal device, wherein   the sending, by the access network device, the data packet of the first multicast service to a terminal device comprises: sending, by the access network device, the data packet of the first multicast service to the terminal device in a multicast mode, or sending, by the access network device, the data packet of the first multicast service to the terminal device in a unicast mode.   
     
     
         10 . The method according to  claim 9 , wherein the method further comprises:
 receiving, by the access network device, a third message from a management device, wherein the third message comprises at least one or more of: an indication for adding or deleting a multicast member, an identifier corresponding to an added or deleted terminal device, and an identifier corresponding to the first multicast service; or   receiving, by the access network device, a fifth message from the terminal device, wherein the fifth message is a message used by the terminal device to request to receive or terminate the first multicast service, and the fifth message comprises at least one or more of: an identifier corresponding to the first multicast service and an identifier corresponding to the terminal device.   
     
     
         11 . An apparatus for a management device comprising:
 at least one processor; and   a memory storing instructions executable by the at least one processor, wherein the instructions cause the at least one processor to perform operations comprising:   receiving, a first message, wherein the first message comprises at least one or more of: an identifier corresponding to a first multicast service, an indication for requesting to receive or terminate the first multicast service, an identifier corresponding to a terminal device requesting to receive or terminate the first multicast service, or an identifier corresponding to an access network device serving the terminal device; and   instructing a gateway device to send a data packet of the first multicast service to the terminal device or the access network device, or instructing, a gateway device to stop sending a data packet of the first multicast service to the terminal device or the access network device.   
     
     
         12 . The apparatus according to  claim 11 , wherein the instructions cause the at least one processor to perform operations further comprising:
 updating, a multicast member list, wherein the multicast member list comprises at least one or more of: an identifier corresponding to a multicast service whose connection has been established, an identifier corresponding to a terminal device requesting the multicast service whose connection has been established, and an identifier corresponding to an access network device serving the terminal device requesting the multicast service whose connection has been established.   
     
     
         13 . The apparatus according to  claim 11 , wherein the instructions cause the at least one processor to perform operations further comprising:
 instructing the gateway device to establish a connection related to the first multicast service to a network device.   
     
     
         14 . The apparatus according to  claim 11 , wherein the instructions cause the at least one processor to perform operations further comprising:
 sending second configuration information to the access network device, wherein, the second configuration information comprises at least one or more of: first indication information used to indicate a mode in which the gateway device sends the data packet of the first multicast service to the access network device, and second indication information used to indicate a mode in which the access network device sends the data packet of the first multicast service to the terminal device, wherein   the mode in which the gateway device sends the data packet of the first multicast service to the access network device comprises that the gateway device sends the data packet of the first multicast service to the access network device in a unicast mode or a multicast mode, and the mode in which the access network device sends the data packet of the first multicast service to the terminal device comprises that the access network device sends the data packet of the first multicast service to the terminal device in a unicast mode or a multicast mode.   
     
     
         15 . The apparatus according to  claim 11 , wherein the instructions cause the at least one processor to perform operations further comprising
 sending a third message to the access network device, wherein, the third message comprises at least one or more of: an indication for adding or deleting a multicast member, an identifier corresponding to an added or deleted terminal device that is served by the access network device and that is in a member of the first multicast service, and the identifier corresponding to the first multicast service; and the member of the first multicast service comprises the terminal device requesting to receive the first multicast service.   
     
     
         16 . An apparatus for a gateway device comprising:
 at least one processor; and   a memory storing instructions executable by the at least one processor, wherein the instructions cause the at least one processor to perform operations comprising:   receiving, a data packet of a first multicast service and sent by a network device; and   sending the data packet of the first multicast service to an access network device, wherein, the sending the data packet of the first multicast service to an access network device comprises: sending, the data packet of the first multicast service to the access network device in a multicast mode, or sending, the data packet of the first multicast service to the access network device in a unicast mode.   
     
     
         17 . The apparatus according to  claim 16 , wherein the sending, the data packet of the first multicast service to the access network device in a multicast mode comprises:
 sending, the data packet of the first multicast service to the access network device through a first channel, wherein the first channel is a channel for transmitting the data packet of the first multicast service; or   sending, the data packet of the first multicast service to the access network device through a first channel, wherein the first channel is a channel for transmitting data packets of a plurality of different multicast services.   
     
     
         18 . The apparatus according to  claim 16 , wherein the sending, the data packet of the first multicast service to the access network device in a unicast mode comprises:
 replicating, a received data packet of the first multicast service according to a quantity of terminal devices requesting to receive the first multicast service, wherein a data packet that is of the first multicast service and that is obtained after the replication comprises a first identifier, and the first identifier is used to indicate a terminal device requesting to receive the data packet of the first multicast service; or   the sending, the data packet of the first multicast service to the access network device in a multicast mode comprises:   replicating, a received data packet of the first multicast service according to a quantity of access network devices serving terminal devices requesting to receive the first multicast service, wherein a data packet that is of the first multicast service and that is obtained after the replication comprises a second identifier, and the second identifier is used to indicate the first multicast service.   
     
     
         19 . An apparatus for an access network device comprising:
 at least one processor; and   a memory storing instructions executable by the at least one processor, wherein the instructions cause the at least one processor to perform operations comprising:   receiving a data packet of a first multicast service from a gateway device; and   sending the data packet of the first multicast service to a terminal device, wherein   the sending the data packet of the first multicast service to a terminal device comprises: sending, the data packet of the first multicast service to the terminal device in a multicast mode, or sending, the data packet of the first multicast service to the terminal device in a unicast mode.   
     
     
         20 . The apparatus according to  claim 19 , wherein the instructions cause the at least one processor to perform operations further comprising:
 receiving, a third message from a management device, wherein the third message comprises at least one or more: an indication for adding or deleting a multicast member, an identifier corresponding to an added or deleted terminal device, and an identifier corresponding to the first multicast service; or   receiving, a fifth message from the terminal device, wherein the fifth message is a message used by the terminal device to request to receive or terminate the first multicast service, and the fifth message comprises at least one or more of: an identifier corresponding to the first multicast service and an identifier corresponding to the terminal device.