KR100498331B1 - Billing method of dual band dual mode terminal equipment - Google Patents

Abstract

The present invention relates to a technology for charging SIM card information in a dual band dual mode terminal. The present invention includes a first step of registering a SIM card information by informing the DBDM code together while registering the NAM information of the WCDMA in the location register after the phone performs initialization; This is accomplished by a second process of sending the CDMA MIN information allocated from the table of the location register to the phone so that the phone can use the call.

Description

BILLING METHOD OF DUAL BAND DUAL MODE TERMINAL EQUIPMENT}

The present invention relates to a technology for charging SIM card information in a dual band dual mode terminal, and in particular, a charging method of a dual band dual mode terminal capable of charging using only SIM card information while talking in both CDMA and WCDMA modes. It is about.

In the call processing of a CDMA phone, when a terminal is powered on, it reads the required system information (NAM) from EEPROM, sets it in RAM, and then uses a pilot channel and a synchronization channel. To synchronize with the system and receive the necessary system information.

The overall call processing process of the CDMA phone will be described with reference to FIG.

In an initialization state in which power is supplied to a mobile station (MS), the terminal is booted and receives a pilot channel and a synchronization channel. After the terminal receives all the system information and completes the normal operation, the terminal is in an idle state for continuously receiving a paging channel. Thereafter, the terminal goes through a system access state for accessing the system and is placed in a busy traffic state.

On the other hand, the call processing of the WCDMA phone is the same as the call processing of the CDMA phone except that information required by the terminal is read from the SIM card.

However, when configuring a dual band dual mode (DBDM) phone using the conventional technology, charging is performed by the SIM card in the WCDMA mode, while in the CDMA mode, the NAM information stored in the EEPROM of the device is used. Charging is done. Therefore, the replacement of the phone not only has to change the SIM card, but also the inconvenience of changing the device, and because the billing process separately, the original advantage of using the SIM card is also lost. In addition, the CDMA phone number should also be recorded when registering the device, but the actual user is assigned only one WCDMA phone number. Therefore, there is a problem that the operator needs a device for matching the CDMA phone number to the WCDMA phone number when making a call from a CDMA phone from the outside.

Accordingly, an object of the present invention is to provide a charging method of a dual band dual mode terminal for charging using only SIM card information while talking in both CDMA and WCDMA modes.

The charging method of a dual band dual mode terminal according to the present invention includes a first step of informing a DBDM code together with a phone registering NAM information of WCDMA in a location register after performing initialization; Registering, at the location register, the transmitted SIM card information; A third step of notifying the phone of the CDMA MIN information allocated from its table; The phone is a fourth step of storing the CDMA MIN information transmitted from the location register to use the call, and will be described in detail with reference to FIGS. 2 and 3 attached to the billing process of the present invention as follows. .

Typically, important phone information is loaded into RAM and used. In the present invention, the modification is not possible in the case of ESN (Electronic Serial Number), but in the case of MIN (MIN: Mobile Identification Number). I thought about it. When the phone registers with the location register (HLR) after initialization, the base station allocates the dummy CDMA MIN while registering the NAM information of the WCDMA. Therefore, since the call charge is assigned only to the registered SIM information number, the call charge can be charged regardless of the mode of the device.

The configuration of the network to which the present invention is applied is the same as the existing network, and the following new information is added to the location register. The location register must have a database with dummy MIN information as shown in FIG. 2, and the database must be configured with a lookup table.

When a user carries a DBDM phone and enters a service area, the user requests a registration to the location register. At this time, if the phone notifies the DBDM code, the location register registers the SIM card information sent thereto. The phone will notify the CDMA MIN information assigned by. Therefore, the phone stores the CDMA MIN information transmitted from the location register and uses it for the call.

As described in detail above, the present invention provides a device and a mode by allocating a dummy CDMA MIN at a base station while allocating a charge to a number of registered SIM card information while registering a NAM information of WCDMA when the phone registers with a location register. Regardless of whether you can charge the effect.

In addition, when a user uses a DBDM phone, even if only the SIM card is inserted, the phone service can be performed in two modes without a separate registration procedure.

1 is a signal flow diagram illustrating the overall call processing process of a CDMA phone according to the prior art.

Figure 2 is a lookup table example of a location register applied to the present invention.

3 is a signal flowchart of a charging method of a DBDM terminal according to the present invention;

*** Description of the symbols for the main parts of the drawings ***

S1-S5: Steps 1-5

Claims (3)

A first step of registering the SIM card information by informing the DBDM code together while registering the NAM information of the WCDMA in the location register after the phone performs initialization; And a second process of transmitting the CDMA MIN information allocated from the table of the location register to the phone, and allowing the phone to use the call. 2. The method of claim 1, wherein the first step comprises charging the registered SIM card information regardless of the device and the mode. The charging method of a dual band dual mode terminal according to claim 1, wherein the location register comprises a database having dummy MIN information.