Patent ID: 7120452

Claim:
A radio apparatus comprising: positioning means for determining a position of said radio apparatus; receiving means for receiving a radio signal; checking means for checking whether said radio signal includes a search request requesting the position of said radio apparatus; judging means for judging whether said apparatus can determine its position; sending means for sending a message to a sender of said radio signal in response to said search request if said judging means judges that said apparatus cannot determine its position; wherein said message comprises the position of a base station located nearest to said radio apparatus; said radio apparatus further comprising storing means for storing said message; setting means for setting a response hold state if said judging means determines that said radio apparatus cannot determine its position; identification means for checking the identification of the sender of said radio signal after said response hold state is set; and reading means for reading the message stored in said storing means after said response hold state is set; wherein after said message is read from said storing means, said response hold state ends and said sending means sends said message.