Mobile communication terminal and call handover method

• US 20080014926A1
• Filed: 07/11/2007
• Published: 01/17/2008
• Est. Priority Date: 07/13/2006
• Status: Active Grant

• Current Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Sanyo Electric Company Limited (Panasonic Holdings Corporation)
• Inventors: Ono, Koji
• Granted Patent: US 8,050,677 B2
• Time in Patent Office: Days
• US Class Current: 455/426.1
• CPC Class Codes: H04W 36/08 Reselecting an access point
• CPC Class Codes: H04W 76/22 Manipulation of transport tunnels

Abstract

Disclosed is a mobile communication terminal including: a user information storage unit for storing user information having a terminal identifier for identifying an arbitrary communication terminal, and a user identifier for identifying the user of the communication terminal associated with each other; an identifier storage unit for storing, at the time of beginning of a call with the other party of the call, a first identifier for identifying the communication terminal of the other party of the call; a terminal identifier determination unit for determining whether the first terminal identifier and a second terminal identifier are associated with the same user identifier, with reference to the user information, upon receipt of a call-out signal including the second terminal identifier during the call with the communication terminal of the other party; and a call controller for handing over the call to a communication terminal indicated by the second terminal identifier when the terminal identifier determination unit determines that the first and second terminal identifiers are associated with the same user identifier.

Claims

1. A mobile communication terminal comprising:

a user information storage unit configured to store user information in which a terminal identifier for identifying an arbitrary communication terminal, and a user identifier for identifying a user of the communication terminal are associated with each other;

an identifier storage unit configured to store, at the time of beginning of a call with a communication terminal of the other party of the call, a first identifier for identifying the communication terminal of the other party of the call;

a terminal identifier determination unit configured to determine whether the first terminal identifier and a second terminal identifier are associated with the same user identifier, with reference to the user information, in a case where a call-out signal including the second terminal identifier is received during the call with the communication terminal of the other party; and

a call controller configured to hand over the call to a communication terminal indicated by the second terminal identifier in a case where the terminal identifier determination unit determines that the first terminal identifier and the second terminal identifier are associated with the same user identifier.

2. The mobile communication terminal according to claim 1, wherein the user information is created by a function of an address book.

3. The mobile communication terminal according to claim 1, wherein, in the case where the terminal identifier determination unit determines that the first terminal identifier and the second terminal identifier are associated with the same user identifier, the call controller automatically begins the call with the communication terminal indicated by the second identifier.

4. The mobile communication terminal according to claim 1, wherein, in the case where the terminal identifier determination unit determines that the first terminal identifier and the second terminal identifier are associated with the same user identifier, the call controller prompts the user to select whether to begin the call with the communication terminal indicated by the second terminal identifier, and

in accordance with the selection made by the user, the call controller begins the call with the communication terminal indicated by the second terminal identifier.

5. A call handover method of handing over a call being made between a first mobile communication terminal and a second mobile communication tonal both communicating via a communication network, the method comprising the steps of:

transmitting from the first mobile communication terminal a call setting request including a first terminal identifier for identifying the first mobile communication terminal;

storing the first terminal identifier in the second mobile communication terminal in a case where the second mobile communication terminal receives a call-out signal including the first terminal identifier;

connecting the first mobile communication terminal to a fixed-line communication terminal during a call with the second mobile communication terminal, and transmitting a call setting request including a second terminal identifier for identifying the fixed-line communication terminal, from the first mobile communication terminal via the fixed-line communication terminal; and

determining, in a case where the second mobile communication terminal receives a call-out signal including the second terminal identifier, whether users of communication terminals indicated by the first terminal identifier and the second terminal identifier are the same, and then, handing over the call to the fixed-line communication terminal in accordance with the result of the determination.

6. A call handover method of handing over a call being made between a first mobile communication terminal and a second mobile communication terminal both communicating via a communication network, the method comprising the steps of:

transmitting a call setting request for the second mobile communication terminal from the first mobile communication terminal, and also storing in the first mobile communication terminal a first terminal identifier for identifying the second mobile communication terminal;

connecting the second mobile communication terminal to a fixed-line communication terminal during a call with the first mobile communication terminal, and transmitting a call setting request including a second terminal identifier for identifying the fixed-line communication terminal, from the second mobile communication terminal via the fixed-line communication terminal; and

determining, in a case where the first mobile communication terminal receives a call-out signal including the second terminal identifier, whether users of communication terminals indicated by the first terminal identifier and the second terminal identifier are the same, and then, handing over the call to the fixed-line communication terminal in accordance with the result of the determination.

7. A call handover method of handing over a call being made between a first mobile communication terminal and a second mobile communication terminal both communicating via a communication network, the method comprising the steps of:

transmitting a call setting request for the second mobile communication terminal from the first mobile communication terminal and also storing in the first mobile communication terminal a first terminal identifier for identifying the second mobile communication terminal;

connecting the second mobile communication terminal to a fixed-line communication terminal during a call with the first mobile communication terminal, and transmitting a call setting request including a second terminal identifier for identifying the fixed-line communication terminal, from the second mobile communication terminal via the fixed-line communication terminal;

determining, in a case where the first mobile communication terminal receives a call-out signal including the second terminal identifier, whether user of communication terminals respectively indicated by the first terminal identifier and the second terminal identifier are the same, and then disconnecting the first mobile communication terminal from the second mobile communication terminal in accordance with the call-out signal, and transmitting from the first mobile communication terminal a call setting request for the second mobile communication terminal; and

causing the second mobile communication terminal to resume the call with the first mobile communication terminal via the fixed-line communication terminal in response to a call-out signal.