Method and apparatus for data packet transport in a wireless communication system using an internet protocol
First Claim
1. In a wireless communication system supporting broadcast transmissions, the system having a broadcast source node and at least one termination node, at least one router coupled between the source node and the at least one termination node, a method for setting up transmission paths comprising:
- determining a transmission range for a broadcast transmission within the system;
building a multicast tree from a first termination node to the broadcast source node, the multicast tree including the at least one router; and
transmitting a broadcast message through the multicast tree over the transmission range.
1 Assignment
0 Petitions
Accused Products
Abstract
Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. A multicast tree is built between nodes through neighboring routers. The multicast tree forms a tunnel through which the broadcast content is transmitted. The broadcast message is encapsulated in an Internet Protocol packet for transmission through the multicast tree. At least one multicast tree is formed between the Internet portion of the system and the wireless portion of the system, such as the Access Network. In one embodiment, an external multicast tree is formed between a content source and a packet data service node, and an internal multicast tree is formed between the packet data service node and a packet control function node.
-
Citations
21 Claims
-
1. In a wireless communication system supporting broadcast transmissions, the system having a broadcast source node and at least one termination node, at least one router coupled between the source node and the at least one termination node, a method for setting up transmission paths comprising:
-
determining a transmission range for a broadcast transmission within the system;
building a multicast tree from a first termination node to the broadcast source node, the multicast tree including the at least one router; and
transmitting a broadcast message through the multicast tree over the transmission range. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for processing Internet Protocol packets in a wireless transmission system supporting broadcast transmissions, the method comprising:
-
receiving an Internet Protocol packet, the Internet Protocol packet encapsulating a broadcast message;
extracting the broadcast message;
encapsulating the extracted broadcast message for transmission. - View Dependent Claims (7, 8)
-
-
9. An infrastructure element for generating Internet Protocol packets in a wireless transmission system supporting broadcast transmissions, the infrastructure element comprising:
-
means for determining a broadcast transmission range;
means for generating an Internet Protocol packet, the Internet Protocol packet having a multicast address; and
means for transmitting the Internet Protocol packet.
-
-
10. A wireless communication system for processing broadcast transmissions in a wireless communication system, the system comprising:
-
a packet service data node adapted to receive a broadcast message; and
a packet control function node adapted to receive the broadcast message, the broadcast message encapsulated in an Internet Protocol packet addressed to a multicast address. - View Dependent Claims (11, 12)
-
-
13. An infrastructure element for processing broadcast transmissions in a wireless communication system, the infrastructure element comprising:
-
means for receiving a broadcast message, the broadcast message encapsulated in an Internet Protocol packet, the Internet Protocol packet addressed to a multicast address;
means for processing the Internet Protocol packet; and
means for addressing the broadcast message to an intended recipient. - View Dependent Claims (14, 15, 16)
-
-
17. An infrastructure element for processing broadcast transmissions in a wireless communication system, the infrastructure element comprising:
-
means for receiving a broadcast message, the broadcast message encapsulated in an Internet Protocol packet, the Internet Protocol packet addressed to a multicast address;
means for processing the Internet Protocol packet; and
means for preparing a second Internet Protocol packet encapsulating the broadcast message and addressed to a multicast address. - View Dependent Claims (18, 19)
-
-
20. A communication path for processing broadcast messages in a wireless communication system, comprising:
-
a first multicast tree portion, wherein the broadcast message is transmitted addressed to a multicast Internet Protocol address;
a second multicast tree portion, wherein the broadcast message is transmitted addressed to a multicast Internet Protocol address; and
a third portion, wherein the broadcast message is transmitted addressed to at least one unicast address. - View Dependent Claims (21)
-
Specification