Multicast transmission to a radio access network
First Claim
1. A method of performing a multicast transmission in a cellular network, said method comprising the steps of:
- a) transmitting an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, to which said multicast transmission is directed, from a core network (100) to a radio access network (90) of said cellular network by using a control information transmission protocol;
b) establishing based on said identification information a signalling connection of a control and user data transmission protocol; and
c) using said established signalling connection for transmitting multicast related data and corresponding control information between said core network (100) and said radio access network (90).
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Accused Products
Abstract
The present invention relates to a method and system for performing a multicast transmission in a cellular network, wherein an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, is transmitted from a core network (100) to a radio access network of the cellular network by using a control information transmission protocol. Then, a signalling connection of a control and user data transmission protocol is establishing based on said identification information and used for transmitting multicast related data and corresponding control information between the core network (100) and the radio access network. Thereby, already defined protocol layers can be used for implementing multicast transmission, while modifications are minimized.
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Citations
33 Claims
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1. A method of performing a multicast transmission in a cellular network, said method comprising the steps of:
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a) transmitting an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, to which said multicast transmission is directed, from a core network (100) to a radio access network (90) of said cellular network by using a control information transmission protocol;
b) establishing based on said identification information a signalling connection of a control and user data transmission protocol; and
c) using said established signalling connection for transmitting multicast related data and corresponding control information between said core network (100) and said radio access network (90). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A system for performing a multicast transmission in a cellular network, said system comprising:
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a) a core network node (60;
150) for transmitting an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, to a radio access network (90) of said cellular network by using a control information transmission protocol; and
b) a radio access network node (30) for receiving said identification information and for establishing based on said identification information a signalling connection of a control and user data transmission protocol;
d) wherein said established signalling connection is used for transmitting multicast related data and corresponding control information between said core network node (60;
150) and said radio access network node (30). - View Dependent Claims (26, 27)
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- 28. A network node for providing a multicast transmission in a cellular network, said network node being adapted to transmit an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, to a radio access network (90) of said cellular network by using a control information transmission protocol.
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31. A network node for providing a multicast transmission in a cellular network, said network node being adapted to receive an identification information, which indicates terminal devices and/or areas in which authorized terminal devices are assumed to be located, and to establish based on said identification information a signalling connection of a control and user data transmission protocol;
wherein said established signalling connection is used for transmitting multicast related data and corresponding control information. - View Dependent Claims (32, 33)
Specification