KR101159708B1 - System for power saving of radio terminal in cellular networks - Google Patents

Abstract

A power saving system of a wireless terminal is disclosed in a cellular network for minimizing power consumption of a wireless terminal by allowing a delay until access to a wireless network capable of high-speed transmission without immediately transmitting a large data request.

In the disclosed cellular network, a power saving system of a wireless terminal transmits a large amount of data by delaying the access request data of a user in a transmitting terminal (wireless terminal) until access of a wireless network capable of high-speed transmission of the large amount of data. When the transmission request data of the user is a large amount of data, the large amount of data is transmitted to a receiving terminal by delaying until a connection of a wireless network capable of high speed transmission is performed based on the delay allowance information included in the received packet.

Cellular network, transmission delay, large data, wireless local area network, anchor pointer

Description

System for power saving of radio terminal in cellular networks

The present invention relates to the power saving of a wireless terminal in a cellular network, and more particularly, to minimize the power consumption of the wireless terminal by allowing a delay until access to a wireless network capable of high-speed transmission without immediately transmitting a large data transfer request. The present invention relates to a power saving system of a wireless terminal in a cellular network.

A general cellular network system (GSM, CDMA, WCDMA, LTE, etc.) is a wireless terminal for transmitting a large amount of data at the request of the user, as shown in FIG. 1, a transmitter station ( 20), the cellular network 30, the receiver station 40, and the receiving terminal 50. Here, the transmitting terminal 10 and the receiving terminal 50 are wireless terminals.

When the user requests transmission of various data such as short message (SMS), multimedia message (MMS), large-capacity message (LMMS) and large-capacity data, the transmitting mobile phone 10 immediately checks the connection status with the wireless network and can be connected. If the transfer starts.

In the case of normally connected to a wireless network and transmitting data, the data transmitted from the mobile station 10 is finally received through the receiver station 40, which is a cellular base station that manages the receiving terminal 50. Is sent to.

At this time, in case of a large amount of data requiring a long transmission time, the wireless terminal (mobile station) continuously consumes high power, which has a fatal adverse effect on the usage time of the wireless terminal.

In general, not all types of transmissions over a wireless wide area network require real-time transmission. Larger data requiring longer transmission time requires less real-time transmission. (Currently, the demand for large data transmission of 10-100MB or more is very low in current expensive network plans. However, in the next generation wireless wide area network, such a demand may increase rapidly. ).

During long transmission times that require large amounts of data transmission, wireless terminals continue to consume high power (the power consumption is very high due to the low transmission speed in the wireless wide area network but the transmission distance of 1km). Fatal adverse effects on the usage time of the terminal.

Accordingly, the present invention has been proposed to solve the problem of power waste caused when transmitting large data in the wireless terminal of the conventional cellular network as described above,

The problem to be solved by the present invention is to allow a delay until access to a wireless network capable of high-speed transmission without immediately transmitting a large data transfer request, so as to minimize the power consumption of the wireless terminal in a cellular network To provide a power saving system.

Another object of the present invention is to provide a power saving system for a wireless terminal in a cellular network that temporarily stores the large amount of data until a connection of a wireless network capable of high speed transmission when a large amount of data is requested to be transmitted.

Another problem to be solved by the present invention, when transmitting a large amount of data to the receiving terminal, the power consumption of the receiving terminal by delaying the large amount of data to be transmitted to the receiving terminal until the receiving terminal can immediately receive a large amount of data The present invention provides a power saving system of a wireless terminal in a cellular network which minimizes the number of cells.

In the cellular network according to the present invention, a power saving system of a wireless terminal includes a transmitting terminal for transmitting data by delaying until a connection of a wireless network capable of high-speed transmission of the large data when the transmission request data is large data. It is done.

The wireless network capable of high speed transmission may be a wireless local area network having a short transmission distance.

In addition, the wireless local area network is characterized in that it comprises anchor points (anchor points) for high-speed transmission of delayed large-capacity data to the cellular network.

In addition, the delay is characterized in that the time-based delay.

In addition, the transmitting terminal is characterized in that the maximum delay up to a delay time arbitrarily set by the user, and when the maximum delay time arrives, immediately transmits the large amount of data delayed to the cellular network.

In addition, when the transmission terminal delays the transmission of the large data, the transmission terminal may include the delay allowance information in the large data packet for transmission.

The delay allowance information may include delay allowance time information arbitrarily set by a user and time information delayed by the transmitting terminal.

In the cellular network according to the present invention,

When the transmission request data is a large amount of data, it characterized in that it comprises a cellular switching station for transmitting the large amount of data to the receiving terminal by delaying until the connection of a wireless network capable of high-speed transmission based on the delay allowance information included in the received packet. .

According to the present invention, by allowing a delay until access to a wireless network capable of high-speed transmission without immediately transmitting upon request for transmission of large-capacity data, and immediately transmitting large data when accessing a wireless network capable of high-speed transmission, the transmission time can be shortened. There is an advantage to minimize the power consumption of the wireless terminal.

In addition, after delaying the large-capacity data based on the allowable transmission time when the large-capacity data is transmitted to the receiving terminal, the receiving terminal transmits the large-capacity data to the receiving terminal when the receiving terminal can receive the large-capacity data at high speed. By shortening the transmission time, there is an advantage that can minimize the power consumption of the receiving terminal.

Furthermore, the wireless local area network implemented by any one of existing Bluetooth, Wi-Fi, ultra wideband (UWB), and wireless USB based devices installed in individual spaces or public places By using the, and by using the anchor pointer provided in such a wireless local area network, there is an advantage that can reduce the additional cost for implementing a high-speed wireless network.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

2 is a diagram illustrating a configuration of a power saving system 100 for a wireless terminal in a cellular network according to the present invention. The transmission terminal 110, the transmitter station 120, the wireless local area network 130, 160, and the anchor are shown in FIG. Pointer 131, 161, cellular network 140, cellular switching center 150, and receiving terminal 170.

Here, the transmitting terminal 110 and the receiving terminal 170 mean a wireless terminal.

The transmitting terminal 110 according to the present invention is a mobile communication terminal possessed by a plurality of users, when a user requests transmission of large data (capacity data of 10 ~ 100MB, such as SMS, MMS, LMMS), do not immediately transmit Area for temporarily storing a large amount of data using an internal data storage device, delaying the temporarily stored large amount of data until access to a local wireless network 130 capable of high-speed transmission of the large amount of data, and then enabling the high-speed transmission. When the wireless network 130 is connected, it performs a function of transmitting a large amount of data temporarily stored in the data storage device. Here, the data storage device refers to a digital data storage device such as a RAM or a ROM.

Although not shown in the drawing, the micro control unit, which is a control device provided in the transmitting terminal 110, determines whether it is a local wireless network capable of temporarily storing a large amount of data or transmitting at high speed. Of course, it is assumed that a control program for delayed transmission of large amounts of data is previously stored in the internal memory.

In the present invention, temporarily storing a large amount of data requested for transmission for a predetermined time is called a DTN-Delay Tolerant Networking function.

That is, the transmitting terminal 110 transmits a voice, a video call, a short message (SMS), a multimedia message (MMS), a large amount of message (LMMS), and a large amount of data. The information is transmitted in real time such as a voice and a video call. In addition, short messages (SMS), multimedia messages (MMS), large-size messages (LMMS) and a large amount of data includes a function for delaying the transmission of a certain time, if not immediately necessary.

The delay allowance time for temporarily storing such a large amount of data may be set by the user in advance or may be changed as necessary. In addition, any one of a predetermined time may be selected when a large amount of data is transmitted.

For example, when a multimedia data transmission request is made, various settings such as immediate transmission, transmission within 3 hours, transmission within 6 hours, and transmission within 12 hours can be set in advance, and a predetermined time (eg transmission within 6 hours) can be set arbitrarily. It may be.

In this case, it is preferable to charge the service fee differentially according to the delay allowance time selected by the user. That is, the longer the delay allowable time, the lower the service charge, and recommend the use of allowance for delayed transmission of large amounts of data, thereby preventing data congestion due to immediate transmission of unnecessary data.

According to the delayed allowable time, the transmitting terminal 110 does not transmit immediately when a request for transmitting a large amount of data is generated by the user, and after storing the large amount of data to be transmitted to the data storage device, continuously checks the progress of the delayed allowable time. At the same time, it is checked whether the wireless local area network 130 having a high transmission rate is connected. In other words, the transmitting terminal 110 is connected to a myriad of wireless local area networks 130 while moving, and each time, the transmitting terminal 110 checks the wireless local area network 130 that can transmit data within a short time. In this case, since the transmission speed can be confirmed according to the current position and the situation of the wireless local area network 130, it is preferable to use such transmission speed confirmation information.

When the transmission terminal 110 accesses the wireless local area network 130 capable of high-speed transmission within the allowable delay time, the transmitting terminal 110 transmits the large-capacity data temporarily stored in the data storage device to the wireless local area network 130, and the wireless local area network ( Anchor pointer 131 in 130 immediately sends the received large amount of data to cellular network 140. The delay allowance time information and the delay time information are preferably recorded together in the spare area of the header portion of the data packet for transmitting the large amount of data. For example, the delay allowance time information is a maximum delayable time preset by the user, and if 6 hours is used, the delay allowance time information becomes 6 hours, and the delay time information indicates that the transmitting terminal transmits a large amount of data to the wireless local area network. Actually delayed time before transmission. If delayed for 3 hours, delay time information becomes 3 hours.

In this case, the transmission terminal 110 can minimize the transmission time for transmitting a large amount of data, thereby reducing the power consumption of the transmission terminal.

In general, a wireless local area network having a short transmission distance has a transmission speed of 10 to 100 times that of a wireless wide area network (mobile communication network), but uses a similar level of power since the transmission distance is short.

The cellular switching center 150 in the cellular network 140 does not immediately transmit the received large data, but checks the delay time information and the delay time information included in the received data packet (packet including the large data), After calculating the delayable time (6 hours-3 hours = 3 hours), it is checked whether the wireless local area network 160 having a high transmission speed is connected while delaying the transmission of large data for the delayable time again. That is, the receiving terminal 170 checks whether the wireless local area network 160 and the receiving terminal 170 having high transmission speeds are accessible so that the receiving terminal 170 can receive a large amount of data at high speed.

This confirmation method is performed in the same manner as the transmission terminal 110 to check the transmission speed described above, when the receiving terminal 170 can receive a large amount of data at high speed, that is, a wireless local area network with a high transmission speed If the 160 and the receiving terminal 170 are accessible, the cellular switching center 150 transmits the temporarily stored large-capacity data to the wireless local area network 160, and then the wireless local area network 160 and the receiving terminal 170. ), A large amount of data is received by the receiving terminal 170 at high speed.

In this case, the reception terminal 170 can minimize the reception time for receiving a large amount of data, thereby reducing the power consumption of the reception terminal.

Meanwhile, if the transmitting terminal 110 fails to access a wireless local area network having a high transmission rate during a delay allowable time set by a user at the time of data transmission delay, the transmitting base station 120 transmits large-capacity data temporarily stored as before, in the wireless wide area network. Will be sent to. In this case, the power consumption of the transmitting terminal 110 is the same as the conventional method.

In addition, the cellular switching center 150 also transmits a large amount of data to the receiving base station 180 in the same manner as before, when the large amount of data is transmitted in a state where the delay allowance time is exhausted. In this case, the power consumption of the receiving terminal 170 is the same as the conventional method.

In addition, when a large amount of data is received by the cellular switching center 150 while the delay allowance time remains, the cellular switching center 150 searches for and connects to a wireless local area network having a high transmission speed during the remaining delay allowance time as described above. In this case, if the wireless local area network with high transmission speed cannot be found even when all the remaining delay time is consumed, the large capacity data is temporarily transferred to the receiving base station 180 of the wireless wide area network. In this case, the power consumption of the reception terminal 170 is the same as that of the reception of the existing large capacity data.

FIG. 3 illustrates an embodiment of a power saving system 100 for a wireless terminal in a cellular network according to the present invention. Various anchor pointers 131, 132, and 133 provided in the wireless local area network 130 are provided. It may be a personal anchor location, that is, a data transmission device (laptop, computer, etc.) that is formed in a home or a company space mainly used by an individual, and is formed in a social anchor location where many people gather. It refers to a data transmission device that is formed in a hotspot, which is a public place where cell phone users are concentrated, such as a space, a hospital, an airport, a hotel, a conference hall, a cafe, a bus stop, and a subway station.

In addition, the wireless local area network can be implemented separately, but personally installed Bluetooth (Wi-Fi), Wi-Fi (Wi-Fi), ultra-wideband (UWB- ultra wideband), wireless USB based access equipment or It is desirable to use any one of Bluetooth, Wi-Fi, ultra wideband, and wireless USB based access devices installed in public places.

Here, the load of cellular base stations and expensive cellular network equipment can be greatly reduced depending on the installation density of anchor pointers and the efficiency of site selection, and network operators can receive more data traffic from users requiring immediate leasing. As a result, network transmission efficiency can be increased.

4A and 4B are diagrams illustrating the utilization of a cellular system according to a delay allowance, and show a transmission delay allowance of data, power consumption and data rate efficiency of a wireless terminal, and increase transmission delay time. As a result, power consumption is minimized and data rate efficiency is increased.

)과 200Mbps를 가진 무선지역망(

)이 있다면, 800Mb(100MB)의 대용량 데이터를 전송할 때, 400초와 4초의 시간이 소요된다.5 is a simplified view of the usefulness of the present invention. Wireless broadband network with a transmission rate of 2Mbps

) And a wireless local area network with 200 Mbps

), It takes 400 seconds and 4 seconds to transfer 800 Mb (100 MB) of large data.

For example, the case of transmitting the large amount of data through the anchor pointer capable of high speed transmission after 5 minutes without delaying the 800Mb large amount of data immediately is expressed by Equation 1 below.

L = 800 Mb

은 거의 비슷하다.WLAN and cellular transmissions differ by approximately 50 to 100 times in terms of transmission, but consume power

Is almost similar.

That is, according to the present invention, the power consumption of the wireless broadband network and the wireless local area network is similar, so if the delay until the high-speed network is met instead of starting the transmission immediately, the power consumption can be saved up to 100 times (difference in transmission rate). It will be possible.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

1 is a block diagram of a conventional cellular network.

2 is a block diagram of a power saving system of a wireless terminal in a cellular network according to the present invention;

3 is a conceptual diagram of an embodiment of the present invention.

4A and 4B are diagrams illustrating a relationship between delay tolerance time, power consumption, and data rate efficiency in a data transmission delay system in a cellular network.

5 is a power relationship diagram of a wireless terminal in the case of using a wireless local area network and a wireless wide area network in the present invention.

<Explanation of symbols for main parts of the drawings>

110... Sending terminal

120... Transmitting base station

130, 160... Wireless local area network

131, 161... Anchor pointer

140... Cellular network

150... Cellular exchange

170... Receiving terminal

180... Receiving base station

Claims (10)

In a cellular network system including a transmitting terminal, a transmitting station, a wireless terminal, and a cellular network, the power saving system of the wireless terminal, The transmitting terminal includes a micro control unit that is a control device, If the transmission request data in the micro control unit is a large amount of data of 10 ~ 100MB, if the large capacity data is delayed and the wireless network is connected, the delayed large data is transmitted to the wireless network, The transmitting terminal performs a maximum delay up to a delay time arbitrarily set by a user, and immediately transmits a large amount of data delayed to the cellular network when the maximum delay time arrives. When the transmitting terminal delays and transmits the large data, the transmitting terminal includes delay allowance information in the large data packet. The system of claim 1, wherein the wireless network is a wireless local area network having a short transmission distance. 3. The system of claim 2, wherein said wireless local area network includes anchor points for high speed transmission of delayed large capacity data to the cellular network. The cellulite of claim 3, wherein the anchor pointer is a data transmission device formed in individual anchor locations, or a social data transmission device formed in a social anchor location where a plurality of members gather. In a wireless network 4. The wireless local area network of claim 3, wherein the wireless local area network is any one of a Bluetooth network, a Wi-Fi network, and an ultra wideband network connected to a cellular network through a high-speed wired network. Power saving system of a wireless terminal in a cellular network, characterized in that. The system of claim 1, wherein the delay is a time based delay and the time is set by a user. delete delete The system of claim 1, wherein the delay allowance information includes delay allowance time information arbitrarily set by a user and delay time information delayed by the transmitting terminal. delete

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