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US 6,781,999 B2Granted
Broadcasting and multicasting in wireless communication
AssigneeAirvana, Inc.
InventorsM. Vedat Eyuboglu, Dae-Young Kim
Life of this patent
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Abstract
In a radio access network, multicast packets are delivered each identified by a multicast network layer address representing a multicast group of access terminals. The multicast packets are delivered in one or more air link frames using a common control channel that is shared among access terminals in a sector. Each airlink frame carries a multicast air link address that identifies the multicast group of terminals.
Claims17
A method comprising
- in a radio access network, delivering multicast packets each identified by a multicast network layer address representing a multicast group of access terminals,
- the multicast packets being delivered in one or more air link frames using a common channel that is shared among access terminals in a sector,
- each airlink frame carrying a multicast air link address that identifies the multicast group of terminals.
A method comprising
- in a radio network, sending multicast packets from a router to a radio access network using a multicast network layer tunnel,
- the router comprising a packet data serving node and using a stateless simple link layer protocol to frame the network layer multicast packets for transmission to access terminals in a sector.
A method comprising
- in a radio network, sending multicast packets from a router to a radio access network,
- the router using a stateless simple link layer protocol to frame the network layer multicast packets for transmission to access terminals in a sector,
- wherein the router comprises a Packet Data Serving Node (PDSN) or a Home Agent (HA).
Dependencies are inferred from the claim text.