KR20110105461A - Method of message service on dual band dual mode modem - Google Patents

Abstract

A method of receiving a message in a dual band dual mode modem for receiving a message when a user using a DBDM modem is connected to a network that does not provide a message is disclosed. In a message receiving method of a DBDM modem including a first modem and a second modem, when a cycle time for receiving a message has elapsed, the first modem transitions from a low power mode to an active mode; and the first modem transitioned to an active mode. Registering the first modem to the first network if the received signal strength of the first network is greater than a predetermined value, and receiving a message from the registered first network using the first modem. Therefore, a portable terminal user can receive a message even when connected to a network that does not provide a message.

Description

How to Receive Message on Dual Band Dual Mode Modem {METHOD OF MESSAGE SERVICE ON Dual Band Dual Mode MODEM}

The present invention relates to a DBDM modem that can be used in a portable terminal, and more particularly, to a method for receiving a message using a DBDM modem in a portable terminal.

Dual Band Dual Mode Modem (DBDM) refers to a modem that can operate in different modes according to each frequency band in two or more different bands (frequency bands). For example, it is a modem that enables communication using two networks so that WCDMA can be used in places where WCDMA networks are implemented and CDMA can be used in shaded areas where WCDMA networks are not implemented. In addition, when a portable terminal exists in a cell that can use both networks, the DBDM modem can be used to take advantage of both networks.

The development of technology to satisfy both high speed wireless data service provided in wireless LAN and mobility, which is the strength of wireless internet, is proceeding in two directions. HSPA (High Speed Packet Access), a mobile communication type developed from the existing 3G network, WCDMA, improves the download speed and upload speed compared to the existing WCDMA network. This HSPA technology is up to 7 times faster than the existing WCDMA speed, enabling users of portable terminals to implement multimedia services such as mobile video telephony while moving at high speed. HSPA technology is currently used for voice and data services, and mobility is excellent enough to enable data communication at 250 km / h.

The other is the WIBRO technology, which is a technology that gives mobility to the WLAN with IP-based technology. WIBRO is a data-centric service that has disadvantages in mobility and coverage compared to HSPA, but its transmission rate is superior to that of HSPA. HSPA and WIBRO show a big difference in terms of the terminal and the available services. WIBRO can use various types of portable terminals, ranging from PCMCIA card type installed in notebooks to existing smartphones, PDAs, and WIBRO dedicated terminals. Therefore, in the same user environment as the wired Internet, IP-based large data and multimedia-oriented services similar to existing WLANs can be efficiently provided.

On the other hand, HSPA is constructed by updating the packet module of the WCDMA system rather than a separate network, so it is possible to use both voice (WCDMA line module) and data (HSPA 고속 WCDMA high-speed packet module) rather than HSPA dedicated terminal or terminal optimized for data communication. Supporting existing mobile phone type terminals is preferred. Therefore, in case of the HSPA portable terminal, the limited wireless Internet service similar to the wireless Internet service of the existing mobile communication system is expected to be mainly provided. In addition, HSPA is able to provide wireless Internet service throughout the country, but WIBRO provides services mainly in urban areas with high speed and large data usage.

The relationship between WIBRO and existing wireless Internet service is important for technical factors, but also for the cost factor felt by users of telecommunications services. In other words, the low-cost telecommunications service among the various telecommunications services of the same technology level may occupy an excellent position in the telecommunications market. WIBRO is optimized for providing IP-based data services, which provides high transmission efficiency. WCDMA, including HSPA, is optimized for providing voice and data services, which guarantees quality of service (QoS) for real-time traffic.

Therefore, it is more likely that the WIBRO service fee will be cheaper than the HSPA, which is likely to adopt a pay-as-you-go plan. Therefore, when mainly using data such as notebook, it is advantageous for notebook users to use WIBRO network if WIBRO network and HSPA network can be used at the same time. However, in case of services that need to use HSPA network such as message service, the message service, which is a service provided in the existing voice data communication network, cannot be provided using only the WIBRO network.

SMS (Short Message Service), which is one of the message services, is a service that delivers messages up to 160 bytes in length to portable terminals that users carry. Unlike a general voice call, a message is transmitted to a short message service-service center (SMS-SC) through a mobile switching center (MSC). The SMS-SC stores the message received from the terminal and inquires the location information of the receiving terminal in the HLR (Home Location Register) and delivers the information to the corresponding MSC where the terminal is located. SM-TP (Short Message Transport Protocol) is used for the transport. As mentioned above, the message service is a service through a voice data network such as the HSPA network. Therefore, when the user of the mobile terminal uses the WIBRO network, in order to check the message provided by each communication company on a laptop rather than a portable terminal such as a mobile phone, HSPA You must connect to the network to receive the message.

Conventionally, when a user of a portable terminal uses a WIBRO network, each carrier must subscribe to a service providing a message through an internet network, not a voice data communication network, in order to check a message provided by each existing communication company on a portable terminal such as a notebook computer. did. However, if you use DBDM modem, you can receive the message directly using the existing HSPA, so no additional service is required. However, when judging the usage fee and service conditions, when data-based services such as laptops are frequently used, users are constantly connected to the WIBRO network, so it is difficult to receive the message service that can be obtained using the HSPA network. In addition, if both networks are connected to receive the message service, unnecessary power consumption may occur because the usage time of the portable terminal should be maximized at the limited battery capacity due to the characteristics of the portable terminal.

Accordingly, a first object of the present invention is to provide a message provided through the HSPA network while minimizing the power consumed in the DBDM modem of the portable terminal even when the user of the portable terminal including the DBDM modem is communicating using the WIBRO network. It provides a way to check.

In order to achieve the above object of the present invention, a message receiving method of a DBDM modem including a first modem and a second modem according to the first object of the present invention may be performed when the period of time for receiving a message has elapsed. Transitioning from the low power mode to the activation mode, registering the first modem to the first network when the received signal strength of the first network measured by the first modem transitioned to the activation mode is greater than a predetermined value; Receiving a message from the registered first network using the first modem. Transitioning the first modem to a low power mode after receiving the message. The first network may be an HSPA network and the second network may be a WIBRO network. If the received signal strength of the first network measured by the first modem transitioned to the activation mode is greater than a predetermined value, the constant value is registered by the user of the portable terminal in the step of registering the first modem with the first network. Can be selected. A message receiving method of a DBDM modem including a first modem and a second modem is a low power state of the first modem when the received signal strength of the first network measured by the first modem transitioned to the activation mode is not greater than a predetermined value. The method may further include transitioning to. The message receiving method of a DBDM modem including a first modem and a second modem may include determining whether a received signal strength of a first network measured by the first modem transitioned to the activation mode is greater than a predetermined value, and then, The method may further include registering the first modem to the first network when the power consumed by the portable terminal in the received signal strength of the network is smaller than a predetermined value. Transmitting the first modem to a low power state when the power consumed by the portable terminal in the received signal strength of the first network is not less than a predetermined value. A message receiving method of a DBDM modem including a first modem and a second modem includes receiving a message using the first modem from the first network after receiving a message using the first modem from the registered first network. When the step is finished, the method may further include transitioning to a low power state. Determining whether receiving a message from the first network using a first modem is finished may further include receiving a message from the first network if the receiving of the message is not finished. have. The message receiving method of a DBDM modem including a first modem and a second modem further includes a step of selecting, by a user of the portable terminal, a time period for receiving the message before periodically determining a time for receiving the message. It may include. The time period for receiving the message may be directly provided by the user of the portable terminal a time period for receiving the message service. The time period for receiving the message may be selected by a user of the portable terminal according to a predetermined predetermined time period for receiving the message service. The method of receiving a message of a DBDM modem including a first modem and a second modem may further include receiving, by the user of the portable terminal, whether to receive a message service using the portable terminal.

As described above, according to the message receiving method in the DBDM modem according to the embodiment of the present invention, a user of a portable terminal that mainly uses IP-based large-capacity data, such as a notebook, checks a message while being connected to a WIBRO network. When you want to do this, DBDM modems can periodically search the HSPA network to deliver messages to users' mobile phones while minimizing the power consumed by DBDM.

Therefore, the user can efficiently use all the services provided by both networks, and when the modem is not used when only one network is used, the modem transitions to the low power mode (LPM) to solve the battery power problem of the portable terminal. Can be.

1 is a block diagram showing a DBDM modem according to an embodiment of the present invention.
2 is a flowchart illustrating a method of receiving a message in a DBDM modem according to an embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is said to be “connected” or “connected” to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprise” or “have” are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. Hereinafter, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

Hereinafter, the message mentioned in the embodiment of the present invention may be a text or multimedia message that can be transmitted and received through a portable terminal such as a short message service (SMS), a multimedia message service (MMS), or a long message service (LMS). Can be.

1 is a diagram illustrating a connection management unit 11 (CM, Connection Manager) for controlling the DBDM modem 100 and the DBDM modem 100 according to an embodiment of the present invention. The DBDM modem 100 may include a USB switch 110, a first modem 130, a second modem 150, and a UICC (Universal Integrated Circuit Card) 170. According to an embodiment of the present invention, the first modem 130 may be configured as an HSPA modem and the second modem 150 may be configured as a WIBRO modem. In addition, in using a communication network, the first network may be an HSPA network and the second network may be a WIBRO network. The present invention is not limited to the HSPA network and the WIBRO network as in the above embodiment, and can be utilized for DBDM modems used in various communication networks.

The connection manager 11 (CM, Connection Manager) is a part for controlling the operation of each modem can be implemented in software form in the external device 10, such as a portable terminal for supplying power to each modem. The connection management unit 11 may not only play a role of controlling the operation of the DBDM modem 100 as a whole, but also may be used when accessing the WIBRO network and terminating the connection of the network. In addition, the connection management unit 11 may receive a signal generated from the DBDM modem 100 through the USB switch 110 may serve to control the operation of the modem.

The USB switch 110 is connected to the external device 10 and serves to switch the operation of the modem according to the type of the network used by the user in the DBDM modem 100 and the modem generated from the connection management unit 11 to each modem. It can play the role of sending control commands. It may also serve to supply power to the DBDM modem 100. The USB hub used in the conventional method has power consumed by the hub itself, so that the auxiliary power supplying power to the USB hub operates only when the DBDM modem 100 is built in the stable operation, but the USB hub according to an embodiment of the present invention The switch 110 may be used in a manner that does not require an auxiliary power since there is no power consumed by the USB switch 110 itself in switching each modem.

The first modem 130 and the second modem 150 accept a signal used in each communication network and convert it into a form of a signal that can be used in a portable terminal or data communication with the outside based on a signal of the portable terminal. It converts into a signal. Each modem may be activated according to a control signal of the connection management unit 11. The first modem 130 and the second modem 150 may be implemented in one module or may be implemented in different modules. In addition, the first modem 130 and the second modem 150 may be directly connected to each other to exchange information without going through the connection management unit (11).

According to an embodiment of the present invention, the unused modem is in a low power mode (LPM) state. The LPM state is the state in which the RF module of the modem is not used and the power consumption of the components of the modem which are not used is minimized. Unlike the method of completely turning off the power of the modem which is not used in the conventional DBDM modem, the DBDM modem 100 of the present invention utilizes the LPM mode to guarantee the continuity of switching between modems included in the DBDM modem 100. Use Therefore, it is possible to efficiently use the limited battery capacity of the portable terminal and improve the user's satisfaction with the data service of the portable terminal by avoiding persistent data communication during handover of each network.

The UICC 170 may be used to authenticate the user's authority when the user connects to the first network to access the wireless data network using the DBDM modem 100.

If the first network is an HSPA network and the second network is a WIBRO network, a Wibro Subscriber Identity Module (WSIM) that can be used in the user authentication procedure to access the second network can be used for the user authentication procedure to access the first network. Although it may be configured separately from the Universal Subscriber Identity Module (USIM), according to the embodiment of the present invention, the UIIM 170 may have a configuration in which the USIM and the WSIM are included together. The WSIM may not be physically present with the USIM, but may be included together in the UICC 170. Using a single UICC 170 through the procedure of configuring each logical channel for WSIM and USIM in the UICC 170 and connecting to the UICC 170 through the operation manager (11, CM, Connection Manager) User authentication can be performed for each network. If necessary, a chip for authentication may be implemented in one module separately in each network.

As the authentication procedure for connecting each modem to the existing network, there is no conflict when connecting to each network by using only one interface using one UICC (170) without using both interface methods of USIM and WSIM. It can interface with the UICC 170 in the DBDM modem 100 in a stable and efficient manner.

2 is a flowchart illustrating a method of receiving a message coming in through a first network when a user using a portable terminal communicates using a second network according to an embodiment of the present invention. The DBDM modem may be configured as a DBDM modem in the form of switching both networks using a USB switch as shown in FIG.

According to an embodiment of the present invention, a user of the DBDM modem may check a message transmitted from the first network by setting a predetermined period. If a user of a portable terminal such as a laptop has a communication device that can receive a message separately using the HSPA network while performing data communication using the WIBRO network, power consumption to check the message by entering the HSPA network Since there is no need to do this, a step may be necessary to allow the user to select whether the user needs to receive a message service separately through a portable terminal such as a laptop (200).

If a user of a portable terminal such as a laptop does not want to receive a message service through the laptop, the first modem, the HSPA modem, may transition to a low power mode (LPM) to prevent unnecessary power consumption. The user may check whether or not to receive the message service using the DBDM modem at every connection, but may set the default value in advance through the connection management unit (CM) so as not to set the message service each time.

In addition, the connection management unit (CM) is continuously connected to a portable terminal such as a notebook without a portable battery, and is supplied with a power cord capable of supplying power. It can also be configured to automatically receive message services.

If the user decides to receive the message through the portable terminal, the method may include determining a period for checking the message by the user (205). If there is no urgent message according to the user's choice, it can prevent the unnecessary power consumption by switching the modem by prolonging the period of checking the message, and if the power can be supplied continuously instead of using the portable battery If it is, it is possible to receive a message quickly by setting a short interval for checking the message. This step may be a process of directly inputting a period in which the user receives the message service, but it is also possible to allow the user to select a preset step such as above and below. In addition, the step of selecting such a period can be set through a constant setting in the connection management unit and may also be set directly in the DBDM modem.

When the user of the portable terminal selects a period for checking a message, it may be determined through a connection manager (CM) whether a predetermined time for checking a message has passed (210). If the user has to check the message in a hurry, the control manager sends a control command separately through the connection manager in order to receive the message service even before the message check period set by the user. It may also be possible to activate the first modem and check the message that came to it through the first network.

When the message reception cycle according to the user's selection has elapsed, the first modem in the low power mode (LPM) on the DBDM modem is changed to an on-line state, that is, an active state (220). Unlike the low power mode (LPM), the active state of the modem is a state in which the RF module is powered on in the first modem to receive an RF signal for communication with the outside. At this time, the second modem communicating with the existing second network may be continuously activated, or the second modem in the activated state may be switched to the low power mode according to the power state of the portable terminal. This can be done by changing the setting of the connection management unit at the discretion of the user. The power state of the portable terminal can be automatically determined by checking the battery status of the portable terminal or whether a cord capable of supplying continuous stable power is connected. Can be.

When the first modem is active, the signal strength of the location where the terminal is located is determined by determining the received signal strength (RSSI) value and the Chip Energy / Others Interference (ECIO) value in the first network where the mobile terminal is currently located. It may be determined whether is greater than or equal to a threshold value (230). If it is determined that the received signal strength is difficult to use the first network, the first modem, which has been activated, may be changed to the low power mode (LPM) mode (280). The threshold value of the signal strength, which is the host of the connection of the first network, can be changed according to the user's setting. If the user wants to receive a message, the threshold value of the signal strength is a small value. Can be set.

RSSI and ECIO values, which are the criterion for receiving signal strength, are examples for determining one received signal strength, and when there are other reference values for determining the received signal strength, the portable terminal receives the current location from other locations. It is also possible to determine the strength of the received signal. The determining of the received signal may be possible by registering the first modem to the first network without performing the receiving signal short step if the user wants to receive the message despite the weak received signal strength.

If the strength of the RSSI signal and the ECIO signal is greater than or equal to a certain level, it is determined whether the power consumption required when the portable terminal receives the message is greater than or equal to a predetermined level using a table that estimates the power consumption of the terminal according to the strength of the signal (240) ). The step of determining whether the power consumption is above a certain level may be performed only by determining the strength of the RSSI signal and the ECIO signal, and the step of determining the power consumption may not be determined according to the user's selection.

If more than a certain level of power consumption is expected, the first modem may be registered in the first network if a less than a certain level of power consumption is expected without receiving a message using the first modem (250). In the case where the first network is an HSPA network and the second network is a WIBRO network, registration in the first network is performed by the authentication procedure between the user's portable terminal and the first network. The module (Card) card may use a method of exchanging information directly with a first modem through a universal asynchronous receiver / transmitter (UART). In this method, the user information in the USIM card can be transmitted through the first modem, thereby authenticating the user's authority to use the first network.

The DBDM modem using the second network and the first network requires a WSIM (WIBRO Subscriber Identity Module) used for accessing the second network as well as a USIM for accessing the first network. The authentication modules for accessing the two networks, USIM and WSIM, can be implemented in the DBDM modem as separate modules, but can be implemented in a single Universal IC Card (UICC). It is desirable for avoiding collisions.

If the user's network use authority is authenticated through the authentication procedure, a message may be received using the first modem registered in the first network (260). Receiving a message can be received using the same method as receiving a message using a portable terminal for a message service. In addition, in the case of a portable terminal such as a notebook, a message service through the first network can be checked through an application that can check a message implemented in the notebook.

After receiving the message service, it is determined whether there is no message remaining without being delivered to the portable terminal (270). Through the determination procedure, it is possible for the portable terminal to receive a message remaining in the network without being transferred while moving to the shadow area of the first network while receiving the message service using the first network.

If there are no more messages, the first modem is disconnected from the network and the first modem is switched to the low power mode (LPM) with the RF module in the modem turned off. If there is still a message to be received again, the remaining message is received using the first modem registered in the first network (260).

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

Claims (13)

In the DBDM modem message receiving method comprising a first modem and a second modem,
Transitioning the first modem from a low power mode to an activation mode when a cycle time for receiving a message has elapsed;
Registering the first modem to the first network when the received signal strength of the first network measured by the first modem transitioned to the activation mode is greater than a predetermined value; And
And receiving a message from the registered first network using the first modem. 2. The method of claim 1, comprising transitioning said first modem to a low power mode after receiving said message. The method of claim 1, wherein the first network is an HSPA network and the second network is a WIBRO network. The method of claim 1, wherein when the received signal strength of the first network measured by the first modem transitioned to the activation mode is greater than a predetermined value, the constant value is registered in the registering of the first modem to the first network. DBDM modem message receiving method, characterized in that can be selected by the user of the portable terminal. The method of claim 1, wherein the DBDM modem includes a first modem and a second modem.
Transitioning the first modem to a low power state if the received signal strength of the first network measured by the first modem transitioned to the activation mode is not greater than a predetermined value. The method of claim 1, wherein the DBDM modem includes a first modem and a second modem.
After checking whether the received signal strength of the first network measured by the first modem transitioned to the activation mode is greater than a predetermined value, the power consumed by the portable terminal in the received signal strength of the first network is smaller than the constant value. And registering the first modem in the first network. 7. The method of claim 6, further comprising transitioning the first modem to a low power state when the power consumed by the portable terminal in the received signal strength of the first network is not less than a predetermined value. The method of claim 1, wherein the DBDM modem including the first modem and the second modem has a message receiving method.
After receiving a message from the registered first network using a first modem,
Transitioning to a low power state when the step of receiving a message from the first network using the first modem is completed. The method of claim 8, wherein the determining of whether the step of receiving a message from the first network using the first modem is finished comprises:
Receiving a message from the first network if the step of receiving the message is not finished further comprising the step of receiving a message from the DBDM modem. The method of claim 1, wherein the DBDM modem including the first modem and the second modem has a message receiving method.
Before the step of periodically determining the time to receive the message
And selecting a time period for receiving the message by a user of the portable terminal. The method of claim 10, wherein the time period for receiving the message is directly received by the user of the portable terminal a time period for receiving the message service. 12. The method of claim 10, wherein the time period for receiving the message is selected by a user of the portable terminal according to a predetermined predetermined time period for receiving the message service. The method of claim 1, wherein the DBDM modem includes a first modem and a second modem.
The user of the portable terminal can receive a message service using the portable terminal.
DBDM modem message receiving method further comprising the step of receiving.

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