| US 7,602,735 B2 | ||
| Method and apparatus for routing between mobile networks | ||
| Jung-Hoon Cheon, Suwon-si (Korea, Republic of); and Ji-Hoon Lee, Choonglu-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Sep. 07, 2005, as Appl. No. 11/221,162. | ||
| Claims priority of application No. 10-2005-0019371 (KR), filed on Mar. 08, 2005. | ||
| Prior Publication US 2006/0203788 A1, Sep. 14, 2006 | ||
| Int. Cl. H04L 12/28 (2006.01) | ||
| U.S. Cl. 370—254 [370/392; 370/401; 709/220; 709/238] | 12 Claims |
| 1. A method for routing between Mobile Networks (MNs), each of the MNs including a Mobile Router (MR) connected to a backbone
network via an access router for transmitting a data packet from a first MN to a second MN, the method comprising:
broadcasting, by a first MR of the first MN, a first message including a flag indicating if an internal network prefix of
a destination MN is included in the first message;
receiving, by a second MR of the second MN, the first message;
determining, by the second MR, if the internal network prefix is included in the first message based on the flag;
comparing, by the second MR, the internal network prefix included in the first message with an internal network prefix of
the second MR, when the internal network prefix is included in the first message;
broadcasting, by the second MR, a second message including an internal network prefix of the first MN and the internal network
prefix of the second MN, when the internal network prefix included in the first message corresponds to the internal network
prefix of the second MR;
receiving, by the first MR, the second message; and
transmitting, by the first MR, the data packet using the internal network prefix of the second MR included in the second message,
when the second message includes the internal network prefix of the destination MN.
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