KR100598975B1 - Method for saving power of mobile station - Google Patents

Abstract

The present invention relates to a power saving method of a terminal, and more particularly, in a terminal in which a wireless connection modem and a mobile communication modem are combined, the wireless connection modem can be operated only when the AP is located nearby. It is about how to save money. The mobile communication base station receives the api presence information and the api system information and transmits it to the combined terminal, and the combined terminal displays the api presence information and the api system information on the display of the combined terminal so that the holder of the combined terminal can identify the api service It operates only when the holder of the combined terminal wishes to use the wireless access modem within the coverage, thereby preventing unnecessary state of the wireless access modem and saving the power of the combined terminal.

Combined Terminals, Power Saving Methods, AP, WLAN, WiBro, WiMax, OnePhone

Description

Terminal power saving method {Method for saving power of mobile station}             

1 is a flowchart of a method for saving power of a combined terminal through notification of existence information of AP in a mobile communication network according to the present invention;

2 is a conceptual diagram of service coverage of a mobile communication base station and an AP according to an embodiment of the present invention;

3 is a conceptual diagram of service coverage of a mobile communication base station and an AP according to an embodiment of the present invention;

4 is a block diagram illustrating a base ID field included in a system parameter message transmitted from a mobile communication base station to a combined terminal according to an embodiment of the present invention;

5 is an exemplary diagram showing the AP presence information and the AP system information in the combined terminal having a wireless access modem and a mobile communication modem together according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100, 202, 204, 206, 320: api

102, 210, 220. 310: mobile communication base station

104: combined terminal

302.304, 306: sector

402 default base station bits

404: api beat

406: base station ID

The present invention relates to a power saving method of a terminal, and more particularly, to a wireless connection only when an AP (AP) is located in a terminal in which a wireless access modem and a mobile communication modem are combined. The present invention relates to a method of saving power of a terminal by allowing a modem to operate.

Recently, the communication environment is developing with the integration trend of wired and wireless, communication and broadcasting. In particular, a combined service for interworking a mobile communication network of a WLAN (Wireless LAN) / WiBro (WiBro) and the like is a typical wired / wireless complex service. WLAN / WiBro has the disadvantage of narrow service coverage while guaranteeing high data rates at low equipment prices. Therefore, services using WLAN / WiBro are suitable for high-speed data transmission in urban areas or in crowded areas (eg, airports, shopping malls, etc.). On the other hand, the mobile communication system has the advantage of having a nationwide service coverage while supporting the medium / low data transmission speed. Therefore, combining these two services provides high-speed data service through WLAN / WiBro in stationary or pedestrian environments such as urban areas, and mobile communication networks in other areas or high-speed mobile environments to ensure service continuity. can do.

In order to provide a combined service of a high-speed data system and a mobile communication network, a terminal technology capable of simultaneously accessing a WLAN / WiBro and a mobile communication network is essential. A terminal equipped with both a wireless access modem and a mobile communication modem centering on a PDA OnePhone is being released to enable integrated wireless and wired and wireless services, and WiBro / WiMax and mobile communication devices are expected to be released in the future. Users can freely select and use mobile communication networks and various wireless access networks using these terminals. However, since mobile networks currently have almost nationwide coverage, they can be accessed from anywhere at any time.However, WLAN / WiBro will have relatively limited service coverage per AP, and will be installed or installed in urban centers. Therefore, it is not possible to know exactly whether WLAN / WiBro service is available in the area where the user is currently located. Therefore, the user has no choice but to determine whether the WLAN / WiBro connection is possible by directly attempting to search for a wireless access by using a combined terminal in a downtown area, etc., and thus, users have a low usage rate of the combined service.

As a solution to this problem, there is a method in which the UE periodically searches for a WLAN / WiBro network. Mobile communication and WLAN / WiBro combined terminal generally monitors messages from the mobile communication network periodically for voice call terminating service. During this period, the WLAN / WiBro network search is periodically attempted and the result is displayed on the terminal monitor to inform the user whether the WLAN / WiBro connection is possible. However, in this case, since both the mobile communication modem and the WLAN / WiBro modem of the terminal should be in the ON state, the battery consumption of the terminal increases, which is inefficient. In addition, considering the fact that the service coverage of WLAN / WiBro is relatively extremely small compared to the mobile communication service coverage, the degree of inefficiency becomes very large.

Accordingly, in order to solve the above-mentioned problem, an object of the present invention is to find out whether an AP exists in a mobile communication network to inform whether a mobile communication base station can be connected to a combined terminal having a mobile communication modem and a wireless access modem at the same time. The present invention provides a method of saving power of a combined terminal through information notification.

Another object of the present invention is to provide a method for saving power of a combined terminal through notification of existence information of an AP in a mobile communication network so as to determine whether a connection for a wireless access modem can be determined after confirming the accessibility of the wireless access modem.

It is still another object of the present invention to provide a method for power saving of a combined terminal through notification of existence information of the AP in a mobile communication network so as to improve the power consumption efficiency of the combined terminal by operating the wireless access modem only in an area where a wireless access modem can be connected. To present.

In order to achieve the above objects, according to an aspect of the present invention, in a power saving method of a combined terminal having a wireless connection modem and a mobile communication modem, (a) the mobile communication base station is an AP (Access Point; wireless access device) Receiving an api presence information and ap system information of the; And (b) the mobile communication base station inserting the AP existence information and the AP system information into a message; And (c) the mobile communication base station transmitting the message to the combined terminal, wherein the combined terminal is configured to turn on the modem for wireless access in accordance with the api existence information and the ap system information inserted in the message. In the mobile communication network characterized in that the control of the off may be provided a method for saving the combined terminal power through notification of the presence of the AP information.

Preferably, the step (a) is such that the mobile communication base station receives from the IP installation operator the AP presence information and the AP system information corresponding to one or more APs present in the service coverage of the mobile communication base station; a) further includes registering, by the mobile communication base station, a mobile communication transmission module installed in the AP, wherein the mobile communication base station receives the AP existence information and the AP system information from the mobile communication transmission module. .

Further, the message may be a system parameter message received from the mobile communication base station when the combined terminal is first powered on or handed off, or a communication message periodically received from the mobile communication base station by the combined terminal for voice call reception. Can be.

In addition, the AP may be made of any one system of WLAN, WiBro, WiMax, and OnePhone.

According to another aspect of the present invention, to achieve the above objects, a mobile communication modem for communicating with a mobile communication base station, receiving a message from the mobile communication base station; A modem for wireless connection for data communication with API; An information extraction unit for extracting ap present information and ap system information from the message; An information display unit which displays the extracted ap present information and ap system information; And a modem controller configured to control on / off of the radio access modem according to the AP existence information and the AP system information.

Preferably, the modem control unit may control the on or off of the wireless connection modem or the mobile communication modem according to the input of the modem conversion button.

The modem controller may be configured to forcibly turn off the radio access modem when the AP does not exist in the service coverage of the mobile communication base station as a result of the confirmation of the existence of the AP, thereby preventing the modem from operating the radio access modem. When the AP exists in the service coverage of the mobile communication base station, the wireless connection modem can be operated by turning on the wireless connection modem.
Further, the message may be a system parameter message received from the mobile communication base station when the combined terminal is first powered on or handed off, or a communication message periodically received from the mobile communication base station by the combined terminal for voice call reception. Can be.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings. Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. A combined terminal means a mobile communication terminal including a wireless connection modem and a mobile communication modem, and api refers to a wireless access device (Access). Point).

1 is a flowchart of a method for power saving of a combined terminal through notification of AP presence information in a mobile communication network according to the present invention.

In step S101, the mobile communication base station 102 receives the AP presence information and the AP system information. When the AP 100 is in the service coverage of the mobile communication base station 102, the AP presence information is in close proximity to the mobile communication base station 102 in which the AP 100 is currently serving the area where the combined terminal 104 is located. It is present. And the AP system information is information on what system the API 100 supports.

The mobile communication base station 102 receives the AP presence information and the AP system information as follows. First, after the AP 100 is installed by the AP system installation operator, the AP presence information and the AP system information are directly transmitted to the mobile communication system operator by notifying the AP existence information and the AP system information to the mobile communication system operator. ) Can receive.

Secondly, the AP 100 may be equipped with a mobile communication transmission module. When the mounted mobile communication transmission module is registered with the mobile communication base station 102, the mobile communication transmission module may transmit the AP existence information and the AP system information to the mobile communication base station 102. If the mobile communication base station 102 receives a signal from a mobile communication transmission module mounted on the AP 100, this means that the AP 100 is currently within service coverage of the mobile communication base station 102.

Here, the AP existence information includes information that the AP 100 exists, and the AP system information is information that the mobile communication base station 102 receives from the mobile communication transmission module, and the system supported by the AP on which the mobile communication module is installed. Contains information about what this is.

In step S102, the mobile communication base station 102 transmits a message to the combined terminal 104. The message includes the AP presence information and the AP system information. In step S103, the combined terminal 104 extracts the api existence information and the ap system information from the message received from the mobile communication base station 102. The extracted AP presence information and the AP system information are displayed on the display of the coupling terminal 104 so that the holder of the coupling terminal 104 can recognize them. From this indication, the holder can determine whether or not a modem for wireless connection is available. That is, when the AP 100 confirms that the information is within the service coverage of the mobile communication base station 102, the wireless connection modem may be turned on to enable high-speed data transmission. In this case, the system may check the AP system information and check whether the system is supported by the associated terminal 104.

Here, turning on the radio connection modem may be selected by the holder of the coupling terminal 104 or automatically selected inside the coupling terminal 104. In addition, many modifications are possible by those skilled in the art.

In the present invention, the message transmitted from the mobile communication base station 102 to the combined terminal 104 is as follows. Firstly it can be a system parameter message. The system parameter message is a message received from the mobile communication base station 102 when the combined terminal 104 is handed off by first powering on or moving to a new mobile communication base station 102. The system parameter message includes a 16-bit Base ID field 406. The mobile communication base station 102 utilizes the base station ID field to determine whether the AP 100 is currently installed in the service coverage of the mobile communication base station 102 in the combined terminal 104 and information of the system that the AP 100 supports. Can tell.

4 is a diagram illustrating a base station ID (406) field included in a system parameter message transmitted from the mobile communication base station 102 to the combined terminal 104. FIG. Since the base station ID 406 basically consists of 16 bits, several bits of the base station ID 406 may be used to inform whether or not the AP 100 is installed in the mobile communication base station 102 and the supporting system information. Referring to FIG. 4, the basic base station bit 402 is a bit that stores basic information of the mobile communication base station 102, and the api existence information and the ap system information related to the ap according to the present invention are stored in the ap bit 404. It is. The AP bit 404 may be composed of five bits of the AP 412, the WL 414, the WB 416, the WM 418, and the OP 420 as in <Example 1>. The AP 412 bit is a bit indicating whether the AP 100 exists within the service coverage of the mobile communication base station 102. The AP 412 bit is '1' if the AP 100 is present and '0' if it is not present. It can be represented as Four bits of the WL 414, the WB 416, the WM 418, and the OP 420 are bits representing system information of the AP 100 when the AP 100 is present. 1 'and the remaining bits may be represented as' 0'. In addition, as in <Example 2>, it may be composed of three bits of the AP 412, # 1 422, and # 2 424. The AP 412 bits may be represented as described above. Two bits of # 1 (422) and # 2 (424) are bits representing one piece of information consecutively, such as WLAN for '00', WiBro for '01', WiMax for '10', and OnePhone system for '11'. It can be displayed as showing. In addition, the method of representing the AP presence information and the AP system information in the base station ID 406 field of the system parameter message may be naturally modified by those skilled in the art.

Secondly, the message transmitted from the mobile communication base station 102 to the combined terminal 104 may be a communication message. The combined terminal 104 periodically checks whether the mobile terminal can be connected to the mobile communication network when the mobile terminal is connected to the mobile communication network for voice call reception. At this time, the combined terminal 104 periodically transmits a signal indicating the position of the combined terminal 104 to the mobile communication base station 102, and in response, the mobile communication base station 102 periodically transmits a communication message to the combined terminal ( 104). Accordingly, if the communication message includes the api existence information and the ap system information, the coupling terminal 104 may extract the information from the communication message.

In the present invention, the API system may be as follows. First, it may be a WLAN system. WLAN is an abbreviation of Wireless LAN, and is called a wireless LAN. It refers to a local area network using radio waves or infrared transmission. It's also called Wi-fi in the sense that it makes the wireless network as convenient as hi-fi audio. Wireless LAN also cannot use the Internet without a base station relaying radio waves wirelessly. Hotspot refers to a wireless LAN base station that relays radio waves installed to solve this problem. In order to install a hotspot, there must be an AP that acts as a base station, which transmits signals from a wireless LAN card installed in a notebook computer or a PDA (portable personal digital assistant) to the network, and sends the signals received from the network back to the wireless LAN card. Because it acts as a sender. In the case of wireless LAN, the data transmission rate is 5 Mbps, which is 5 million individuals per second, but the response radius is only about 200m, so it has to be installed in a limited area such as the center of a crowded city or a university library. . Therefore, you can't use it while moving like a cell phone, but you can use it while staying in a specific place like a cafe or library.

Next may be the WiBro system. WiBro stands for Wireless Broadband Internet, which refers to the high-speed portable Internet using the 2.3GHz frequency. It is a system that can service at a distance of about 1km from AP and the data rate is about 1Mbps.

It may also be a WiMax system. WiMax is a system with a data rate of 70Mbps at a radio wave radius of about 30km to overcome the disadvantage that the existing Wi-Fi equipment has a response radius of only a few tens of meters, which requires a large number of apis and its limitation in availability.

It may also be a OnePhone system. OnePhone is a wired / wireless integrated service that sends and receives voice and data through a wired network within the AIP service area and a mobile communication network outside the AIP service area by embedding a technology such as Bluetooth capable of short-range wireless communication in a mobile phone terminal.

2 is a conceptual diagram of service coverage of a mobile communication base station and an AP according to an embodiment of the present invention. If there is an AP in a specific area, the service coverage of the mobile communication base station includes the service coverage of the AP. In addition, there is a case where there is no api in the service coverage of a specific mobile communication base station, and in reality, the latter case is much more. Therefore, continuously turning on the modem for wireless access within the service coverage of the mobile communication base station in which the AP does not exist greatly affects the power consumption of the combined terminal. How to prevent this is as follows.

Referring to FIG. 2, in the case of mobile communication base station # 2 220, no AP exists in the service coverage, and in case of mobile communication base station # 1 210, the AP # 1 202 and the AP # 2 ( 204), there are three APs of AP # 3 206. If the mobile communication service user is at the location of 212, it is within the service coverage of the mobile communication base station # 2 220, and since there is no ap within the service coverage of the mobile communication base station # 2 220, the mobile communication base station # 2 ( 220 transmits information indicating that the AP does not exist to the service user. Therefore, the service user can recognize that there is no API in the region and can save power of the terminal without having to turn on the wireless access modem.

In addition, when the service user moves to reach the position of 214 or 216, it corresponds to the service coverage of the mobile communication base station # 1 210, wherein the mobile communication base station # 1 210 is within its service coverage. The AP presence information indicating that the AP exists is transmitted to the service user. The service user may recognize that the AP exists in the service coverage of the mobile communication base station # 1 210, and turn on the wireless access modem to use the service of WLAN, WiBro, WiMax, or OnePhone.

3 is a conceptual diagram of service coverage of a mobile communication base station and an AP according to an embodiment of the present invention. Referring to FIG. 3, there is one AP 320 in service coverage of the mobile communication base station 310. In this case, the service coverage of the mobile communication base station 310 may be divided into the α sector 302, the β sector 304, and the γ sector 306. When the mobile communication base station 310 uses a sector antenna, the number of mobile communication service users that can be accommodated within the service coverage of the same mobile communication base station 310 increases. Accordingly, the mobile communication service is divided into three sectors of 120 [deg.] Around the antenna of the mobile communication base station 310.

Here, the AP 320 is present in the α sector. Thus, although within the service coverage of the mobile communication base station 310, it is necessary to transmit information that the AP 320 is within the service coverage of the mobile communication base station 310 when the combined terminal 104 is in the β sector or the γ sector. none. Since the mobile communication base station 310 recognizes each sector as if it were another base station, the api 320 exists only in the combined terminal 104 located in the a sector, and it is necessary to transmit what the system information of the api 320 is. . In addition, the coupling terminal 104 located in the β sector or the gamma sector transmits information indicating that the AP 320 does not exist.

FIG. 5 is an exemplary diagram showing AP presence information and AP system information in a combined terminal having both a wireless access modem and a mobile communication modem according to an embodiment of the present invention. On the display of the combined terminal 104, an antenna indicating whether or not the reception area is always present, and the capacity of the battery remaining, etc. are displayed. Like these indications, the presence information and the system information of the system may be basically displayed on the display. If there is no AP 100 in the service coverage of the mobile communication base station 102, there is no indication. If the AP 100 exists in the service coverage of the mobile communication base station 102, the display indicates WL for WLAN, WB for WiBro, WM for WiMax, and OP for OnePhone according to the AP system information. It can be represented by In addition, the system may be distinguished by using different colors such as red, orange, yellow, and green according to the information of the AP system while displaying it as an API.

In addition, by making one of the menu of the coupling terminal 104 without being displayed on the display basically, when the holder of the coupling terminal 104 wants to know whether the service of the AP 100 is available at the current location, the corresponding search menu of the API is displayed. If it is selected and displayed on the display, it is possible to display whether or not the system 100 exists at the current location and if present, the system information of the system 100.

According to another embodiment according to the present invention there is a combined terminal including a wireless connection modem and a mobile communication modem. And a mobile communication modem, a wireless connection modem, an information extracting unit, an information display unit, and a modem control unit.

The modem for mobile communication always communicates with a mobile communication base station. And receives a message transmitted by the mobile communication base station within the service coverage of the mobile communication base station. The message may be a system parameter message or a voice paging message as described above.

The modem for wireless connection is a modem selected by the holder of the combined terminal to communicate with the AP. When the owner confirms the existence information of the api and the system information and determines that the api exists in the service coverage of the mobile communication base station, the wireless access modem is turned on for high speed data transmission.

The information extracting unit extracts the AP existence information and the AP system information from the message received by the mobile communication modem from the mobile communication base station. If the message is a system parameter message, the AP presence information and the AP system information may be extracted by checking the AP bit 404.

The information display unit displays the AP presence information and the AP system information extracted by the information extraction unit on the display of the combined terminal. Referring to FIG. 5, a method of displaying on a display is illustrated.

The modem controller controls ON-OFF of the modem for mobile communication and the modem for wireless access. At the combined terminal, the holder can turn on the modem for wireless access through the input of a button or by selecting a menu, where the modem for mobile communication is turned off or turned on for voice call reception. You can. In addition, when the AP existence information is checked, if the AP does not exist in the service coverage of the mobile communication base station in which the combined terminal is currently located, the modem controller forcibly prevents the modem for wireless access from being turned on. The power consumption caused by the ON can be prevented.

In addition, the combined terminal may select a modem for wireless connection or a modem for mobile communication through the input of a button or selection of a menu by a user interface. Therefore, the holder of the combined terminal may check the existence information of the AP displayed on the screen and may arbitrarily turn on the wireless access modem when there is an AP in the service coverage of the mobile communication base station serving the current location. In addition, the combining terminal checks the existence information of the AP and if it is confirmed that the AP is not within the service coverage of the mobile communication base station, forcibly turns off the wireless connection modem so that the holder of the coupling terminal does not operate the wireless connection modem. can do. In addition, the combined terminal may automatically turn on and operate the modem for wireless connection when the AP is within the service coverage of the mobile communication base station.

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

 As described above, in the mobile communication network according to the present invention, the mobile communication base station is connected to the combined terminal having the mobile communication modem and the wireless connection modem simultaneously by the combined terminal power saving method through notification of the existence of the AP information. You can tell if it is possible.

In addition, in the mobile communication network according to the present invention, after confirming whether the connection for the wireless access modem can be connected by the method of saving power of the combined terminal through notification of the existence of the AP, it is possible to determine the connection attempt of the wireless access modem.

In addition, in the mobile communication network according to the present invention, the power consumption efficiency of the combined terminal can be improved by operating the wireless connection modem only in an area where the wireless connection modem can be connected by the method of saving the combined terminal power through the notification of the existence of the information of the AP. .

Claims (9)

In the power saving method of a combined terminal having a modem for wireless connection and a modem for mobile communication, (a) receiving, by the mobile communication base station, the AP presence information and the AP system information of an access point (radio access point); And (b) the mobile communication base station inserting the AP existence information and the AP system information into a message; And (c) the mobile communication base station transmitting the message to the combined terminal, The method of claim 2, wherein the combined terminal controls on / off of the modem for wireless access in response to the api presence information and the ap system information inserted in the message. The method of claim 1, wherein step (a) The mobile communication base station receives the AP presence information and the AP system information corresponding to one or more APs existing in the service coverage of the mobile communication base station from an AP installation service provider. Combined terminal power saving method. The method of claim 1, wherein step (a) Registering, by the mobile communication base station, a mobile communication transmission module installed in the AP; The method of claim 2, wherein the mobile communication base station receives the ap existence information and the ap system information from the mobile communication transmission module. The method of claim 1, The message may be a system parameter message received from the mobile communication base station when the combined terminal is first powered on or handed off, or a communication message periodically received from the mobile communication base station for voice call reception. Combined terminal power saving method through the notification of the presence of the AP in the mobile communication network. The method of claim 1, The AP is a wireless terminal (WLAN), WiBro (WiBro), WiMax (WiMax) and OnePhone (OnePhone) any one of the system characterized in that the mobile terminal, power saving method of the combined terminal through the notification of the presence information in the mobile communication network. A mobile communication modem communicating with a mobile communication base station, the mobile communication modem receiving a message from the mobile communication base station; A modem for wireless connection for data communication with API; An information extraction unit for extracting ap present information and ap system information from the message; An information display unit which displays the extracted ap present information and ap system information; And And a modem controller configured to control on / off of the radio access modem according to the AP existence information and the AP system information. The method of claim 6, And the modem controller controls on / off of the wireless connection modem or the mobile communication modem according to an input of a modem conversion button. The method of claim 6, The modem controller prevents the wireless access modem from operating by forcibly turning off the wireless access modem when the AP does not exist in the service coverage of the mobile communication base station as a result of confirming the existence of the AP. And the wireless connection modem is operated by turning on the wireless connection modem when the AP exists in the service coverage of the base station. The method of claim 6, The message may be a system parameter message received from the mobile communication base station when the combined terminal is first powered on or handed off, or a communication message periodically received from the mobile communication base station for voice call reception. Combined terminal.

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