Method for transmitting digital channel with priority of mobile communication terminal

• US 20040033802A1
• Filed: 08/15/2003
• Published: 02/19/2004
• Est. Priority Date: 08/16/2002
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Young-Shim, Koo, Bon-Young
• Granted Patent: US 7,218,942 B2
• Time in Patent Office: Days
• US Class Current: 455/432.1
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A method for transmitting a digital channel with priority in a mobile communication terminal, includes: attempting a call origination in an analog area; re-scanning an MRU table to judge whether a digital channel identical to a currently obtained digital channel; performing a originating in a digital mode in an analog area if there is the same digital channel; and performing a call originating in an analog mode if there is no same digital channel. A call originating is performed through a digital channel with priority even in the analog area, so that a speech quality can be enhanced.

Claims

1. A method for transmitting a digital channel with priority in a mobile communication terminal,

wherein when a call originating is attempted, a calling signal is transmitted through a digital channel identical to a currently obtained digital channel among digital channels existing in a most recently used (MRU) table.

2. The method of claim 1, wherein If there is no same digital channel in the MRU table as the currently obtained digital channel, the originating call is transmitted through an analog channel.

3. A method for transmitting a digital channel with priority in a mobile communication terminal, comprising:

attempting a call origination in an analog area;

judging whether there is a usable digital channel by re-scanning the MRU table; and

performing a call originating in a digital mode in the analog area if there is a usable digital channel.

4. The method of claim 3, wherein the analog area is an advanced mobile phone service (AMPS) area.

5. The method of claim 3, wherein the usable channel is a digital channel identical to the digital channel obtained in the mobile communication terminal among digital channels stored in the MRU table.

6. The method of claim 3, wherein if there is no usable channel, the call originating is performed in the analog mode.

7. A method for transmitting a digital channel with priority in a mobile communication terminal, comprising:

determining so as for a mobile communication terminal to support an analog system;

inputting a call origination command;

re-scanning an MRU table;

judging whether a digital channel stored in the MRU table and a currently obtained digital channel are identical;

performing a call originating in a digital mode if the digital channels are identical; and

performing a call originating in an analog mode if the digital channels are not identical.

8. The method of claim 7, wherein the analog system is an AMPS system.

9. The method of claim 7, wherein, in the step of performing a call originating in the digital mode, the mobile communication terminal transmits an originating call through a digital channel in the analog channel.