Multicast transmission in packet based cellular networks
First Claim
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1. A multicast support unit, comprising:
- an input interface adapted to receive messages exchanged between mobile stations and a cellular packet support node;
a filter adapted to identify in messages received by the input interface, not directed to the multicast support unit, messages which indicate an intent of a mobile unit to receive multicast data; and
a controller adapted to instruct a mobile unit, indicated in a message identified by the filter, to receive a specific multicast channel.
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Abstract
A method of transmitting data packets to a cellular mobile unit, comprising: establishing a data transfer path for providing data from a data network gateway to a base station controller, for a first mobile station identity; and transmitting data received along the established path to at least one mobile station having at least one second identity different from the first identity.
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Citations
24 Claims
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1. A multicast support unit, comprising:
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an input interface adapted to receive messages exchanged between mobile stations and a cellular packet support node; a filter adapted to identify in messages received by the input interface, not directed to the multicast support unit, messages which indicate an intent of a mobile unit to receive multicast data; and a controller adapted to instruct a mobile unit, indicated in a message identified by the filter, to receive a specific multicast channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of establishing a terrestrial mobile connection, comprising:
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receiving a message indicating the intent of a mobile unit to receive multicast data, by an intercepting unit to which the message was not directed; and generating an instruction to the mobile unit to receive a multicast channel, responsive to receiving the message. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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Specification