Patent ID: 7697473
Filing Date: 2010-04-13
Classification: H04L,H04W

Abstract:
1. A terminal of a wireless broadband communication system supporting Internet Protocol version 6 (IPv6) communications based on a neighbor discovery protocol, the terminal comprising: an IPv6 module for generating a multicast neighbor discovery message to search for at least one of a neighbor terminal and a router; and a medium access control (MAC) module for exchanging MAC management messages with a base station for IPv6 communications, wherein a network emulation device is provided between the IPv6 module and the MAC module, and the network emulation device collects network information from a MAC management message received from the base station, the network emulation device determines whether the multicast neighbor discovery message has been created for address resolution, in response to the multicast neighbor discovery message being created for address resolution, the network emulation device determines, with an analysis module, whether the network information comprises information for generation of a response message for the multicast neighbor discovery message, in response to the network information comprising information for generation of the response message, the network emulation device generates, with a response message generation module, a response message for the multicast neighbor discovery message based on the network information and provides the response message to the IPv6 module, in response to the network information not comprising information for generation of the response message, the network emulation device converts, with a message conversion module, the multicast neighbor discovery message to a unicast neighbor discovery message and provides the unicast neighbor discovery message to the MAC module, and in response to the multicast neighbor discovery message not being created for address resolution, the network emulation device discards the multicast neighbor discovery message.