Patent ID: 8233454

Claim:
A communication system comprising: a wireless terminal configured to establish a wireless connection with a plurality of base stations; a management apparatus including: a first controller configured to send a switching instruction to the wireless terminal via at least one of the plurality of base stations; and a destination information manager configured to transmit in a broadcast mode a request message including a destination of the wireless terminal; and a relay apparatus configured to relay communication between the plurality of base stations and the management apparatus, the relay apparatus including a storage device configured to store information used to determine a forwarding destination of a received message, wherein the wireless terminal includes a second controller configured to switch the wireless connection from the at least one of the plurality of base stations to another one of the plurality of base stations based on the switching instruction received from the first controller, and to transmit a response message to the relay apparatus to update the information stored by the storage device in a case that the second controller completes switching of the wireless connection, and wherein the relay apparatus is further configured to update the information stored by the storage device based on the response message transmitted from the wireless terminal, and wherein the second controller of the wireless terminal transmits the response message in response to the request message.