KR100664513B1 - Method and apparatus for repeating system of portable internet - Google Patents

Abstract

The present invention relates to a portable internet relay method and apparatus convertible to WLAN. In the repeater for providing a portable Internet service in conjunction with a PI (Portable Internet) base station according to the present invention, a first antenna for receiving a portable Internet signal from the PI base station, the received portable Internet signal digital unit (Digital Unit) A low frequency mixer converting the processed intermediate frequency signal into a digital frequency unit converting the mixed signal into a WLAN (Wireless LAN) signal, and converting the converted signal into a frequency that the wireless terminal can receive. It characterized in that it comprises a high frequency mixer for converting and a second antenna for transmitting the converted signal.

WiBro. PI, Portable Internet, Portable Internet, Repeater

Description

Mobile internet relay method and apparatus {Method and apparatus for repeating system of portable internet}             

1 is a schematic conceptual diagram of a mobile Internet service.

2 is a table roughly comparing the service range of the mobile Internet with that of other wireless services.

Figure 3a is a schematic diagram showing a wireless Internet service of the conventional WLAN.

Figure 3b is a schematic conceptual diagram showing a wireless Internet service of the portable Internet method.

4 is a schematic conceptual diagram illustrating a portable Internet service using a PI repeater convertible to WLAN according to an embodiment of the present invention.

5 is a conceptual diagram showing the approximate range of services associated with a PI repeater convertible to a PI base station and a WLAN according to an embodiment of the present invention.

6 is a conceptual diagram illustrating protocol conversion of a portable Internet service using a PI repeater capable of converting a WLAN according to an embodiment of the present invention.

7 is a schematic diagram of a PI repeater convertible to WLAN according to an embodiment of the present invention.

8 is a schematic flowchart of a portable Internet service method using an instrument of the PI convertible to WLAN according to an embodiment of the present invention.

9 is a conceptual diagram of an optical-portable internet repeater convertible to a WLAN according to an embodiment of the present invention.

10 is a conceptual diagram of a frequency-converted RF-Portable Internet (PI) repeater capable of converting into a WLAN according to an embodiment of the present invention.

11 is a conceptual diagram of a microwave PI (M / W-Portable Internet) repeater convertible into a WLAN according to an embodiment of the present invention.

12 is a schematic conceptual diagram of a frequency modulated RF-Portable Internet (PI) repeater convertible to a WLAN using a dedicated base station according to one preferred embodiment of the present invention.

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

401: wireless terminal supporting WLAN

403: A wireless terminal that supports portable Internet and WLAN at the same time

410: PI repeater convertible to WLAN

350: PI repeater

320: core network

The present invention relates to a portable Internet (PI) relay method and apparatus.

In the past few years, high-speed Internet service has been successfully introduced in Korea, and more than 70% of households in the country use the Internet at very high speeds of several Mbps, and many people have free access to the Internet at home.

In addition, mobile subscribers are currently more than 33 million, and almost all citizens, except children and the elderly, use voice communication services regardless of location. Mobile communication networks have also advanced with increasing number of users, providing not only voice communication services but also data services including mobile Internet. However, the mobile communication network is mainly used for voice communication until now, and the number of subscribers using the mobile Internet service is very small and the frequency of use is low. The reasons for this are that the transmission speed is lower than several hundred kbps or lower, the fee for use / communication is expensive, and it is inconvenient to use compared to the wired case.

Meanwhile, WLAN (Wireless LAN) technology, commonly based on the IEEE 802.11 standard technology called Wi-Fi, has been successfully introduced worldwide in the last few years, and almost all notebook computers now available on the market. Is installed by default. In addition, the installation of an access point (AP) connected to a network by wirelessly connecting to a WLAN card is accelerating. Along with the popularization, the price has become much cheaper, so it is possible to install it at home without any burden, and it is also installed in schools, companies, etc., and it is possible to connect to the Internet at high speed without restriction of a place within a certain range. In addition, service providers are increasingly installing public APs and providing wireless Internet services in public places, and the number of APs installed is increasing. Despite this success, WLANs have a deadly weakness that coverage is very small. Although the coverage of WLAN is usually within about 30 ~ 200m of each AP, even if the number of APs increases, the overall coverage is hardly comparable to that of mobile phones. In addition, when a user moves from the area of one AP to the area of another AP, there is a problem that handoff is not supported and mobility is not guaranteed.

Therefore, users who are using the Internet as a living have naturally formed a demand for high-speed internet service at a low price by accessing the internet anytime, anywhere while stopping and moving. However, none of the current mobile communication networks and WLANs provide the services of high-speed mobility, high transmission speed, low usage fee, and wide-area coverage area to the extent that users require it.

The government recognized the need for the introduction of these new services and defined them as mobile Internet. In addition, the 100MHz band of 2.3-2.4GHz is allocated and known as a frequency for portable Internet service.

In order to provide high quality service in the major urban areas in the limited frequency band, the mobile Internet service has a cellular structure but has a smaller cell radius than the mobile communication system and moves at the speed of mobile, pedestrian speed or urban vehicle movement. It aims to provide broadband Internet service to subscribers of 1 ~ 2 Mbps or more. Therefore, the portable Internet service can be connected to the Internet both indoors and outdoors, and can make calls during stationary or medium low-speed mobility (up to 60 km / h or less), and supports high-speed internet transmission speeds (1 Mbps or more per subscriber). Must guarantee 1-2Km and be able to support handover.

1 is a schematic conceptual diagram of a portable Internet service.

Referring to FIG. 1, after the signal transmitted to the core network 110 through the Internet network 120 is transmitted to the PI base station 101, the PI base station is a PDA, in the region 100 of the PI base station. The portable Internet service is provided to the wireless terminal 103 such as a notebook computer, a smart phone, and a cellular phone.

2 is a table comparing the service range of the portable Internet with that of other wireless services.

Referring to FIG. 2, the vertical axis of the table means that the mobile service can be freely moved while moving upward with mobility 210, and the horizontal axis of the table shows a higher quality wireless service toward the right at the data rate 220. It means you can receive. In addition, the dotted line dividing the table is a line dividing the wired carrier and the wireless carrier, and the upper dotted line 230 is suitable for a business that emphasizes voice and mobility as a suitable business area for the wireless operator. In addition, the bottom 240 of the dotted line is a suitable area for wireline operators, and is suitable for a business that emphasizes data rate and quality of service.

Each circle in the table represents the scope of each existing or anticipated business. First, it belongs to the scope of wired business. WLL (241), ADSL / HFC / B-WLL (243), 2.4Ghz WLAN (245) There is. Also within the scope of the wireless business are PCS / cellular phone 231 and IMT-2000 233. As a next-generation wireless service method capable of receiving high-speed data while fusion of each feature, there may be a portable Internet service 250 that is a 2.3 GHz wireless Internet and a fourth generation wired / wireless integrated Internet service 260.

On the other hand, such a mobile Internet service also has a shaded area in which the PI base station cannot provide high quality communication service like the existing mobile communication service. Therefore, a repeater for a portable Internet service such as a current mobile communication repeater is required. However, the existing repeaters simply played a role of amplifying and transmitting a signal of a base station.

In addition, in the case of the wireless terminal to which the WLAN is widely used, there is a drawback that the existing repeater cannot provide the mobile Internet service.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a portable Internet relay method and apparatus in which a wireless terminal to which a WLAN is applied can receive portable Internet service.

It is still another object of the present invention to provide a mobile internet relay method and apparatus capable of receiving portable Internet service by a wireless terminal to which a WLAN which is located in an area where portable Internet service is not provided.

It is still another object of the present invention to provide a mobile internet relay method and apparatus capable of receiving a mobile internet service by a wireless terminal to which a WLAN is applied, which moves at a low speed and is present where a mobile internet service is not provided.

In order to achieve the above objects, according to an aspect of the present invention, a repeater for providing a portable Internet service in combination with a PI base station, the first antenna for receiving a portable Internet signal from the PI base station, the received portable Internet A low frequency mixer for converting a signal into an intermediate frequency signal that can be processed by a digital unit, a digital unit unit for converting the mixed signal into a wireless LAN (WLAN) signal, and a wireless terminal to receive the converted signal. And a second antenna for transmitting the converted signal.

The digital unit unit may include a digital unit source coding part unit for encoding the converted intermediate frequency signal, and a digital unit channel coding unit for channel coding the source coded signal. A digital unit channel coding part, a digital unit modulator for modulating the channel coded signal, a digital unit demodulator for demodulating the modulated signal, and a digital for channel decoding the demodulated signal. And a digital unit source decoding part for source decoding the channel decoded signal. In addition, the wireless terminal is characterized in that it can be simultaneously provided with a wireless LAN (WLAN) service and a portable Internet service. The apparatus may further include an apparatus for converting a signal transmitted from the PI base station into an optical signal and transmitting the optical signal to the repeater. The apparatus may further include a device for converting a signal transmitted from the PI base station into a microwave (M / W) signal and transmitting the signal to a repeater. The apparatus may further include an apparatus for converting a signal transmitted from the PI base station into an RF signal and transmitting the signal to a repeater.

According to another aspect of the present invention, in the method for providing a portable Internet service in a repeater combined with a PI base station, receiving a portable Internet signal from the PI base station, the digital unit can process the received portable Internet signal Converting an intermediate frequency signal, converting the mixed signal into a wireless LAN (WLAN) signal, converting the converted signal into a frequency that a wireless terminal can receive, and transmitting the converted signal It may provide a mobile Internet service comprising the step.

In a preferred embodiment, the converting the mixed signal into a wireless LAN (WLAN) signal may include encoding the converted intermediate frequency signal, channel coding the source coded signal, Modulating the channel coded signal, demodulating the modulated signal, channel decoding the demodulated signal, and decoding the channel decoded signal ( It may provide a portable Internet service comprising the step of source decoding). In addition, the wireless terminal is characterized in that it can be simultaneously provided with a wireless LAN (WLAN) service and a portable Internet service. The method may further include converting a signal transmitted from the PI base station into an optical signal and transmitting the optical signal to the repeater. The method may further include converting a signal transmitted from the PI base station into a microwave (M / W) signal and transmitting the signal to a repeater. The method may further include converting a signal transmitted from the PI base station into an RF signal and transmitting the signal to a repeater.

Next, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a schematic conceptual diagram illustrating a conventional wireless Internet service compared to a preferred embodiment of the present invention.

Referring to FIG. 3, FIG. 3A is a schematic conceptual view illustrating a conventional WLAN type wireless internet service, and FIG. 3B is a schematic conceptual view illustrating a portable internet type wireless internet service.

Referring to FIG. 3A, the WLAN type wireless Internet service includes a wireless terminal 301 supporting an WLAN, an access point 310, and a core network 320.

The WLAN supporting terminal 301 corresponds to the majority of existing portable data devices such as laptops and PDAs, and devices such as WLAN cards that can support WLAN by combining with terminals that cannot support the existing WLAN. Many also exist.

The access point (AP) 310 is a device capable of providing WLAN service to the terminal 301 supporting the WLAN over the predetermined area (hundreds to hundreds of meters) 300.

The core network 320 is connected to the access point 310 by wire to connect data to the Internet.

Referring to FIG. 3B, the wireless Internet service of the portable Internet system includes a wireless terminal 331 supporting a portable Internet, a PI repeater 340, a PI base station 350, and a core network 320.

The wireless terminal 331 supporting the portable Internet may be a target for most portable data devices such as a smart phone, a PDA, a notebook computer, and the like, in combination with a wireless terminal that does not support the portable internet such as the WLAN card. There may also be devices that can support the mobile Internet. In other words, compared to WLAN, the wireless terminals 301 and 331 may be applied to almost similar kinds of devices.

The PI repeater 340 serves almost the same as a conventional mobile communication repeater. In the shaded area 330 where the radio wave transmitted from the portable Internet base station 350 does not reach properly, it is installed for smooth portable Internet service. The portable Internet repeater amplifies the portable Internet signal received by the PI base station 350 to send to the shaded area 330, and receives and amplifies the portable Internet signal transmitted from the terminal 331 supporting the portable Internet. To transmit to the PI base station.

The PI base station 350 receives a portable Internet signal from the terminal 331 or the PI repeater 340 that supports the portable Internet, and transmits the signal to a core network. Hand-off is supported.

4 is a schematic conceptual diagram illustrating a portable Internet service using a PI repeater convertible to WLAN according to an embodiment of the present invention.

Referring to FIG. 4, the portable Internet service using a PI repeater capable of converting into a WLAN includes a wireless terminal 401 supporting WLAN, a wireless terminal 403 supporting simultaneous WLAN and WLAN, and a PI repeater 410 convertible to WLAN. ), The PI repeater 350, and the core network 320.

The wireless terminal 401 supporting the WLAN is a terminal of the same type as the wireless terminal indicated by 301 of FIG. 3A.

The wireless terminal 403 which simultaneously supports the portable Internet and the WLAN is a terminal in which a PI receiving module or a WLAN receiving module is added to the wireless terminal 401 supporting the WLAN or the wireless terminal 331 supporting the PI. to be. That is, the wireless terminal may be used by adding some additional equipment to the terminal using existing wireless data.

The PI repeater 410 that can be converted into the WLAN receives a signal received from the PI base station 350 in the shadow area 400 from the PI module 413 as shown in FIG. In step 411, a WLAN signal is sent. On the contrary, the wireless terminals 401 and 403 receive the WLAN signal from the WLAN module 411, convert the form into the portable Internet signal, and transmit the portable terminal to the portable Internet signal from the PI module 413.

FIG. 5 is a conceptual diagram illustrating an approximate range of services linked to a PI repeater convertible to a PI base station and a WLAN according to an embodiment of the present invention.

Referring to FIG. 5, the approximate range of services linked to the PI base station and the PI relay convertible to WLAN is PI base station 350, the PI repeater 410 convertible to WLAN, service range 500 of PI base station, It consists of a service range 510 of a PI repeater that can be converted into a WLAN.

The service range 500 of the PI base station is wider than the service range 510 of the PI repeater. However, as in the existing mobile communication base station, it has a shaded area where portable Internet service is impossible. In order to receive the portable Internet service in the shaded area 510, a PI repeater is required. When the wireless terminal supporting the WLAN in the shaded area 510 wants to be provided with a portable Internet service, a PI repeater 410 convertible to WLAN may be installed in the shaded area 510 instead of the general PI repeater.

6 is a conceptual diagram illustrating protocol conversion of a portable Internet service using a PI repeater capable of converting WLAN according to an embodiment of the present invention.

Referring to FIG. 6, the portable Internet service using the PI repeater capable of converting the WLAN includes a terminal 401 supporting the WLAN, a PI repeater 410 convertible to the WALN, and a PI base station 350.

To describe the signal transmitted from the terminal 401 supporting the WLAN as an ISO communication layer, the lower two layers are applied to the WLAN (IEEE 802.11) in the ISO 7 layer. In other words, the WLAN service is applied to the physical layer and the data link layer (601). The higher layer 603 applies another standard for transmitting data, which remains unchanged in transmission to the base station.

The PI repeater 410 convertible to the WALN converts the lower two layers from the WLAN 601 to the portable Internet standard 610 in the signal received from the WLAN. Thus, the converted signal retains the existing data 603, but the transmission method is changed from WLAN to portable Internet. The changed portable Internet signal is transmitted to the PI base station.

7 is a schematic diagram of a PI repeater convertible to WLAN according to an embodiment of the present invention.

Referring to FIG. 7, the PI repeater convertible to WLAN may include a first antenna 701 duplexer 703, a low noise amplifier (LNA) 705, a low frequency mixer 707, and a digital unit 709. ), A high frequency mixer 711, a high power amplifier (HPA) 713, and a second antenna 715.

The first antenna 701 serves to receive a WLAN signal from a wireless terminal supporting the WLAN. It also serves to transmit a signal received from the duplexer to a wireless terminal supporting the WLAN.

The duplexer 703 serves to process both the WLAN signal received from the wireless terminal supporting the WLAN and the WLAN signal received from the high power amplifier with a single first antenna. In addition, the second antenna side serves to process both the portable Internet signal transmitted by the repeater and the portable Internet signal received by the second antenna.

The low noise amplifier (LNA) 705 amplifies a signal received from the duplexer 703. Since the strength of the signal is very small, especially when amplifying the signal, the noise should be low. The low noise amplifier (LNA) 705 may amplify the WLAN signal and the portable Internet signal received from the duplexer 703.

The low frequency mixer 707 converts a signal received from the low noise amplifier (LNA) 705 into a frequency that can be processed by the digital unit 709.

The digital unit 709 converts a signal received from the low frequency mixer 707 into a portable Internet signal. It also converts from a portable Internet signal to a WLAN signal. The digital units 709 exist in pairs and perform modulation and demodulation, respectively.

The digital unit 709 may include a signal encoder, a channel encoder, a modulator, a demodulator, a channel decoder, and a signal decoder, and the signal encoder converts the original signal format and converts the signal from the channel encoder. It converts the frequency into the correct frequency, and modulates the frequency to be sent to the digital units existing in pairs in the modulator. In the digital units that exist in pairs, demodulation, channel decoding, and signal decoding are performed on the contrary.

8 is a schematic flowchart of a portable Internet service method using a PI repeater convertible to WLAN according to an embodiment of the present invention.

Referring to FIG. 8, in the portable Internet service method using a PI repeater convertible to WLAN, a WLAN signal is first transmitted from a wireless terminal 401 supporting WLAN (801). The WLAN signal is then received by the PI repeater 410 convertible to WLAN (803). The received signal is then converted to an intermediate frequency (805). Thereafter, the digital unit 709 undergoes encoding 807, encoding 809, and frequency modulation 811 of the signal. Thereafter, the digital units present in pairs undergo frequency demodulation 813, channel demodulation 815, and signal decoding 817. In this process, signals are converted from WLAN signals to portable Internet signals. The signal is then converted to a PI frequency that the portable Internet base station can receive (819). The converted signal is then sent 821 to the PI base station. The signal is then received 823 at the PI base station.

9 is a conceptual diagram of an optical-portable internet (PI) repeater convertible to a WLAN according to an exemplary embodiment of the present invention.

Referring to FIG. 9, an optical-portable internet (PI) repeater that can be converted into a WLAN may be broadly divided into a base station area 901 and a repeater area 910. There is a PI base station 350 having a F1 frequency, which can be directly serviced to a wireless terminal supporting the C1, and a converter 903 converting the F1 frequency into an optical signal. In addition, the PI base station 350 having the F1 frequency communicates directly with the wireless terminal supporting the Portable Internet (PI) in the base station area 901 at the F1 frequency.

The repeater region 910 includes an optical-portable internet (PI) repeater 911 and a service antenna 913 that can be converted into the WLAN. In addition, the wireless terminal supporting the WLAN in the relay region 910 communicates with the PI base station 350 having the F1 frequency through an optical-portable Internet (PI) repeater 911 convertible to the WLAN.

The PI base station 350 having the F1 frequency is coupled to an optical-portable Internet (PI) repeater 911 convertible to the WLAN through an optical cable between the converter 903 and the repeater 911.

FIG. 10 is a conceptual diagram of a frequency-converted RF-Portable Internet (PI) repeater capable of converting into a WLAN according to an embodiment of the present invention.

Referring to FIG. 10, a frequency-converted PI (RF-Portable Internet) repeater that can be converted into a WLAN can be broadly divided into a base station area 1001 and a repeater area 1010, and the PI base station having the F1 frequency in the base station area. 350, a converter 1003 converts the F1 frequency into a WLAN, and converts the F1 frequency into an F2 frequency for communication with a RF-Portable Internet (PI) repeater. In addition, the PI base station 350 having the F1 frequency communicates directly with the wireless terminal supporting the Portable Internet (PI) in the base station area 1001 at the F1 frequency.

The repeater area 1010 includes a donor antenna 1011, a frequency-converted PI (RF-Portable Internet) repeater 1013 and a service antenna 1015 that can be converted into WLANs. In addition, the wireless terminal supporting the WLAN in the relay region 1010 communicates with the PI base station 350 having the F1 frequency through the frequency-converted RF (Portable Internet) PI 1013 convertible to the WLAN.

The PI base station 350 having the F1 frequency is coupled with a frequency-converting PI (RF-Portable Internet) repeater 1013 that can be converted into the WLAN via the F2 frequency between the converter 1003 and the repeater 1013. have.

11 is a conceptual diagram of a microwave PI (M / W-Portable Internet) repeater convertible into a WLAN according to an embodiment of the present invention.

Referring to FIG. 11, a microwave PI (M / W-Portable Internet) repeater that can be converted into a WLAN can be broadly divided into a base station region 1101 and a repeater region 1110, and the base station region has the F1 frequency. There is a PI base station 350, a converter 1103 for converting the F1 frequency into a microwave frequency for communication with a microwave PI (M / W-Portable Internet) repeater that can be converted into a WLAN. In addition, the PI base station 350 having the F1 frequency communicates directly with the wireless terminal supporting the portable Internet (PI) in the base station area 1101 at the F1 frequency.

The repeater region 1110 includes a donor antenna 1111, a microwave PI (M / W-Portable Internet) repeater 1113 and a service antenna 1115 that can be converted into WLANs. In addition, the wireless terminal supporting the WLAN in the relay region 1110 communicates with the PI base station 350 having the F1 frequency through a microwave PI (M / W-Portable Internet) repeater 1113 convertible to the WLAN. Is done.

The PI base station 350 having the F1 frequency includes a microwave PI (M / W-Portable Internet) repeater 1113 capable of converting into the WLAN via the F2 frequency between the converter 1103 and the repeater 1113. Combined

12 is a schematic conceptual diagram of a frequency modulated RF-Portable Internet (PI) repeater convertible to WLAN using a dedicated base station according to an embodiment of the present invention.

Referring to FIG. 12, a frequency-modulated RF-Portable Internet (PI) repeater that can be converted into a WLAN using a dedicated base station can be broadly divided into a base station area 1201 and a repeater area 1210, and the base station area 1201 is a repeater. It consists of a PI base station 1200 having an F2 frequency for communication with.

The PI base station 1200 having the F2 frequency has a function of communicating with a frequency modulated PI (RF-Portable Internet) repeater that can be converted into a WLAN using the dedicated base station, and establishes a general portable Internet within the base station area 1201. Direct communication with the supporting terminal cannot be performed.

The repeater region 1210 includes a donor antenna 1211, a frequency modulated RF-Portable Internet (PI) repeater 1213 and a service antenna 1215 that can be converted into a WLAN using a dedicated base station.

The donor antenna 1211 receives a signal sent from the PI base station 1200 having the F2 frequency and is also sent from a frequency modulated RF (RF-Portable Internet) repeater 1213 that can be converted into a WLAN using the dedicated base station. Has the function to send a signal.

The frequency modulated PI (RF-Portable Internet) repeater 1213 convertible to WLAN using the dedicated base station is capable of receiving a F2 frequency sent from the PI base station 1200 received from the donor antenna 1211 by a terminal supporting WLAN. It converts and amplifies the F1 frequency, and also converts and amplifies the F1 frequency signal transmitted by the terminal supporting the WLAN to the F2 frequency that the PI base station 1200 can receive.

The service antenna 1215 transmits a signal converted and amplified by a frequency-modulated PI-Portable Internet Repeater (1213) convertible to a WLAN using the dedicated base station, and receives a signal from a terminal supporting WLAN. Has the function.

The PI base station 1200 having the F2 frequency is directly coupled to the donor antenna 1211 of the frequency-modulated PI (RF-Portable Internet) repeater that can be converted into a WLAN using the dedicated base station through the F2 frequency.

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.

According to the present invention, it is possible to provide a portable Internet relay method and apparatus in which a wireless terminal to which a WLAN is applied can receive portable Internet service. Therefore, the service subscriber can be provided with sufficient portable Internet service through the wireless terminal to which the existing WLAN is applied without purchasing a new wireless terminal.

In addition, according to the present invention, it is possible to provide a portable Internet relay method and apparatus in which a wireless terminal to which a WLAN which is located in an area where portable Internet service is not provided can receive portable Internet service. Therefore, the service subscriber can be sufficiently provided with the mobile Internet service through the wireless terminal to which the existing WLAN is applied even in the building, the basement, and the like.

In addition, according to the present invention, there is provided a portable Internet relay method and apparatus capable of receiving portable Internet service to a wireless terminal to which a WLAN is applied, which moves at a low speed and is present where no portable Internet service is provided. Therefore, the service subscriber can be sufficiently provided with the mobile Internet service through a wireless terminal to which an existing WLAN is applied even in a car in a downtown area or a subway moving at a low speed.

Claims (26)

In a repeater that provides a mobile Internet service in combination with a PI base station, A first antenna for receiving a portable Internet signal from the PI base station; A low frequency mixer for converting the received portable Internet signal into an intermediate frequency signal that can be processed by a digital unit; A digital unit for converting the mixed signal into a wireless LAN (WLAN) signal; A high frequency mixer for converting the converted signal into a frequency that the wireless terminal can receive; And A second antenna for transmitting the converted signal Including but not limited to: The digital unit, A digital unit source coding part for encoding the converted intermediate frequency signal; A digital unit channel coding part for channel coding the coded signal; A digital unit modulator for modulating the channel coded signal; A digital unit demodulator for demodulating the modulated signal; A digital unit channel decoding part for channel decoding the demodulated signal; And Digital unit source decoding part for source decoding the channel decoded signal Repeater comprising a. delete The method of claim 1, The wireless terminal Can provide both WLAN (Wireless LAN) service and portable Internet service at the same time Repeater characterized in that. The method of claim 1, Device for converting the signal transmitted from the PI base station into an optical signal and transmitting to the repeater Repeater comprising more. The method of claim 1, Device for converting the signal transmitted from the PI base station to a microwave (M / W) signal and transmitted to the repeater Repeater comprising more. The method of claim 1, Device for converting the signal transmitted from the PI base station to an RF signal and transmitting to the repeater Repeater comprising more. delete delete delete delete delete delete delete In a method for providing a mobile Internet service in a repeater combined with a PI base station Receiving a portable internet signal from the PI base station; Converting the received portable Internet signal into an intermediate frequency signal that the digital unit can process; Converting the mixed signal into a wireless local area network (WLAN) signal; Converting the converted signal into a frequency that the wireless terminal can receive; And Transmitting the converted signal; Method for providing a mobile Internet service comprising a. The method of claim 14, Converting the mixed signal into a wireless LAN (WLAN) signal Encoding the converted intermediate frequency signal; Channel coding the source coded signal; Modulating the channel coded signal; Demodulating the modulated signal; Channel decoding the demodulated signal; And Source decoding the channel decoded signal; Method for providing a mobile Internet service comprising a. The method of claim 14, The wireless terminal Can provide both WLAN (Wireless LAN) service and portable Internet service at the same time Method for providing a mobile Internet service, characterized in that. The method of claim 14, Converting the signal transmitted from the PI base station to an optical signal and transmitting it to a repeater The method of providing a mobile Internet service further comprising. The method of claim 14, Converting the signal transmitted from the PI base station into a microwave (M / W) signal and transmitting the signal to a repeater The method of providing a mobile Internet service further comprising. The method of claim 14, Converting the signal transmitted from the PI base station to an RF signal and transmitting the signal to a repeater The method of providing a mobile Internet service further comprising. delete delete delete delete delete delete delete

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