Method and system for packet data transmission
First Claim
1. A method for transmitting packet data in a communications system, comprising:
- assigning an IP address to a network access identifier corresponding to a mobile terminal;
sending data to the terminal over a link using said IP address;
detecting release of the IP address assigned to the NAI of the mobile terminal after termination of the link; and
changing IP address information stored in a mobile domain name system after said release, wherein different procedures are used to assign the IP address and change the IP address information stored in the mobile domain name system for different types of IP users, wherein said method further includes;
sending an accounting request message to an authentication, authorization, and accounting server after said release, andperforming an accounting operation in response to the accounting request message, wherein information including the IP address of the terminal is sent to the authentication, authorization, and accounting server independent of an accounting request message.
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Accused Products
Abstract
A system and method for transmitting packet data in a communications system assigns an IP address to a terminal based on a network access identifier corresponding to the terminal, and then sends packet data to the terminal using the IP address. The terminal may be a simple IP user terminal or a mobile IP user terminal, and the packet data being sent preferably corresponds to an IP push service. In order to send the packet data, a protocol link is established between the terminal and network. Transmission of packet data on this link may be managed using an information table which relates information corresponding to the IP address to the network access identifier. This table is updated with information relating to the IP address when, for example, the network access identifier changes, when a point-to-point protocol timer expires, when an IP registration expires a location of the terminal changes. Upon expiration of any of the aforementioned time periods, the link between the terminal and network may be eliminated, thereby freeing the IP address for use by other terminals in the system.
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Citations
26 Claims
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1. A method for transmitting packet data in a communications system, comprising:
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assigning an IP address to a network access identifier corresponding to a mobile terminal; sending data to the terminal over a link using said IP address; detecting release of the IP address assigned to the NAI of the mobile terminal after termination of the link; and changing IP address information stored in a mobile domain name system after said release, wherein different procedures are used to assign the IP address and change the IP address information stored in the mobile domain name system for different types of IP users, wherein said method further includes; sending an accounting request message to an authentication, authorization, and accounting server after said release, and performing an accounting operation in response to the accounting request message, wherein information including the IP address of the terminal is sent to the authentication, authorization, and accounting server independent of an accounting request message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for transmitting packet data, comprising:
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a packet data processor which assigns a network access identifier to a terminal; a domain name processor which generates and assigns an IP address for the network access identifier of the terminal; and a server to store the network access identifier assigned to the IP address, wherein the domain name processor changes information relating to the IP address when a data link to the terminal is released, the packet data processor and domain name processor performing different procedures to respectively assign the IP address and change the IP address information for different types of IP users, said method further comprising; an authentication, authorization, and accounting (AAA) server which receives an accounting request message after said release, said AAA server performing an accounting operation in response to the accounting request message, and wherein information including the IP address is received by the AAA server independent of an accounting request message. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A The method for providing information in a communications system, comprising:
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assigning a network access identifier to a mobile terminal requesting an IP push service; generating an IP network address for the terminal, the IP address being allotted to the network access identifier; and providing the IP push service to the terminal based on the IP network address, said providing including; determining that the IP network address has been released from the terminal, identifying the network access identifier of the terminal; determining a new IP network address which has been assigned to the network access identifier of the terminal; and providing the IP push service to the terminal based on the new IP network address assigned to the network access identifier, wherein the IP push service is provided to the terminal based on the network access identifier irrespective of subsequent changes in the IP network address. - View Dependent Claims (26)
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Specification