| US 7,486,671 B2 | ||
| Data transmission in communication system | ||
| Pekka Taipale, Espoo (Finland); and Jouni Borgman, Vantaa (Finland) | ||
| Assigned to Nokia Corporation, Epsoo (Finland) | ||
| Filed on Aug. 23, 2004, as Appl. No. 10/923,506. | ||
| Claims priority of application No. 20045234 (FI), filed on Jun. 21, 2004. | ||
| Prior Publication US 2005/0281256 A1, Dec. 22, 2005 | ||
| Int. Cl. H04J 3/24 (2006.01) | ||
| U.S. Cl. 370—389 [370/395.52] | 38 Claims |
| 1. A method comprising:
transmitting data in messages between a first system entity and at least one third system entity through a second system entity
by using a transmission control protocol/internet protocol (TCP/IP) or a user datagram protocol/internet protocol (UDP/IP)
transport protocol, wherein each message comprises a port number parameter indicating a transmission control protocol or user
datagram protocol port number, respectively, and
using a modified port number parameter further indicating an identity of the at least one third system entity, to which and
from which a message is transmitted, in the transmission of such as message between the first system entity and the second
system entity,
wherein the use of a modified port number parameter comprises
including, in the first system entity, the identity of the at least one third system entity to which a message is transmitted
in the port number parameter of the message;
transmitting the message to the second system entity; and
removing, in the second system entity, the identity of the at least one third system entity from the port number parameter
of the message before transmitting the message to the at least one third system entity.
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