Communication system, communication apparatus, and communication method

Abstract

In an ad hoc mode based on IEEE802.11 standard, when a wireless terminal performs a power save operation to create a network, and a network identifier identical to that of the network to be created is present, the wireless terminal does not join the network. When the wireless terminal is to join the network, and the network identifier identical to that of the network which the wireless terminal is to join is not present, the wireless terminal does not join any network. In this method, reliable connectivity can be obtained in the ad hoc mode which is not defined in the IEEE802.11 standard in detail.

1 - 5 . (canceled) 
     
     
         6 . A communication system comprising:
 a first communication apparatus which creates a network and includes a power saving management function;   a second communication apparatus which joins the network, the first communication apparatus and the second communication apparatus directly communicating with each other; and   a network identifier shared by at least the first communication apparatus and the second communication apparatus,   wherein when the first communication apparatus is to create the network by validating the power saving management function, and a signal including a network identifier identical to the network identifier of the network which is to be created by the first communication apparatus is detected, the first communication apparatus does not join the network.   
     
     
         7 . A communication method for a communication system, comprising:
 creating a network by a first communication apparatus which includes a power saving management function; and   joining a second communication apparatus to the network, the first communication apparatus and the second communication apparatus sharing a network identifier and directly communicating with each other,   wherein when the first communication apparatus is to create the network by validating the power saving management function, and a signal including a network identifier identical to the network identifier of the network which is to be created by the first communication apparatus is detected, the first communication apparatus does not join the network.