KR100644898B1 - Wireless communication device and wireless communication system - Google Patents

Abstract

A wireless communication terminal and a wireless communication system are provided to control a communication connection among mobile stations, base stations or mobile stations and base stations and to play a role of other special base station for other mobile stations. A wireless communication terminal comprises the first transceiver(101), the first RF block(102), the first baseband block(103), the second transceiver(104), the second RF block(105), and the second baseband block(106). The first transceiver(101) transmits/receives signals to/from base stations. The first RF block(102) filters the signals, received by the first transceiver(101), into downlink band signals, and filters the signals, transmitted by the first transceiver(102), into uplink band signals. The first baseband block(103) transmits/receives signals to/from the first RF block(102). The second transceiver(104) transmits signals to or from mobile stations. The second RF block(105) filters the signals, received by the second transceiver(104), into uplink band signals, and filters the signals, transmitted by the first transceiver(104), into downlink band signals. The second baseband block(106) transmits/receives signals to/from the second RF block(105), and processes the signals filtered by the second RF block(105).

Description

Wireless communication device and wireless communication system

1 is a block diagram showing a state in which a signal is transmitted inside an embodiment of a wireless communication terminal of the present invention.

2a to 2d briefly show how signals are transmitted between the mobile station and the base station or the wireless communication terminal according to the position of the mobile station in one embodiment of the wireless communication system of the present invention.

{Description of main parts of the drawing}

101: first transceiver end 102: first RF block

103: first baseband block 104: second transceiver

105: second RF block 106: second baseband block

201: base station 202: cell of a base station

203: wireless communication terminal 204: cell of a wireless communication terminal

205: mobile station in cell of base station 206: communication between base station and mobile station

207: mobile station in a cell of a wireless communication terminal

208: communication between a wireless communication terminal and a mobile station

209: communication between a wireless communication terminal and a base station

210: change the cell of the mobile station

The present invention relates to a wireless communication terminal and a communication system in which a cell is formed around a specific wireless communication terminal, and more particularly, a separate circuit module for allowing a specific wireless communication terminal to perform a role as a server or a base station. It relates to a communication system between a wireless communication terminal having a and a terminal performing the role of the server or base station and another terminal connected thereto.

Recently, the use of wireless communication terminals has become more common with the development of wireless communication service-related technologies, and wireless communication terminals are being used for various new types of services in addition to the telephone connection function of conventional telephones, which were originally main functions.

In Korea, the capacity of the system is much larger than other methods of mobile communication system, and the voice quality and noise are distinguished based on the codes given to each individual. Method "). The CDMA method uses the same frequency band in all cells simultaneously, assigns different codes with low correlation to each subscriber, modulates the transmission signal, and demodulates the receiver with the same code used for transmission. All carriers that do not match the code are recognized as noise.

In the conventional wireless communication terminal, communication and other services are performed in such a way that the terminal is located at the far end of the wireless communication service network and connected to a base station that is in charge of a predetermined area (cell, cell) to perform a communication service. In this manner, the terminal functions only as a client requesting a service manually. In order to perform a separate service other than communication, a terminal requires a separate operation to connect to a device that performs the service. The terminal performs limited functions that are less than expected in the performance of the device and the architecture of the system to which it belongs.

An object of the present invention devised to solve the above problems is to provide a wireless communication terminal that functions as a base station or a service server for another mobile station by configuring an independent cell.

Another object of the present invention is to provide a communication system comprising a mobile station, a base station, and a terminal for controlling a communication connection between the mobile station and the base station or serving as a separate base station for the mobile station.

In order to solve the above problems, the wireless communication terminal of the present invention comprises a first transceiver for transmitting and receiving a signal between the base station; A first RF block (RF block) for filtering a signal received from the first transceiver and a downlink band, and filtering a signal transmitted from the first transceiver to an uplink band; A first baseband block for transmitting and receiving a signal with the first RF block and processing a signal filtered by the first RF block; A second transceiver for transmitting and receiving a signal to and from a mobile station; A second RF block for filtering a signal received from the second transceiver to an uplink band and a signal transmitted from the second transceiver to a downlink band; And a second baseband block that exchanges signals with the second RF block and processes the signal filtered by the second RF block.

In the present invention, the wireless communication terminal is a signal in which the unique identification number information included in the signal received in the first transceiver or the second transceiver is filtered in the uplink band from the first RF block or the second RF A unit for discriminating whether or not coinciding with the unique identification number information included in the signal filtered by the downlink band in the block, and received by the first transceiver or the second transceiver according to the discrimination result of the unit. If the unique identification number information included in the signal coincides with the unique identification number information included in the signal filtered from the first RF block into the uplink band, the first baseband block is downlinked from the second RF block. In the case of matching with the unique identification number information included in the band-filtered signal, it is preferable to drive the second baseband blocks, respectively.

In the present invention, the unique identification number information is preferably information of the device serial number.

In the present invention, the first transceiver and the second transceiver is preferably an antenna, respectively.

The wireless communication system of the present invention includes a base station covering a specific range of cells; The wireless communication terminal of the present invention; And a mobile station, wherein the wireless communication terminal covers a separate cell independent of the cell of the base station and the mobile station is located in a cell of the base station or a cell of the wireless communication terminal.

In the present invention, the wireless communication system is configured to transfer a call between the mobile station and the base station to a call between the mobile station and the wireless communication terminal or a call between the mobile station and the wireless communication terminal according to the position of the mobile station. It is preferable to switch to a call between the base stations.

In the present invention, it is preferable that the wireless communication terminal communicates with the base station.

In the present invention, when the mobile station is located in a cell of the wireless communication terminal, it is preferable that the wireless communication terminal exchanges signals with the base station and the mobile station.

In the present invention, it is preferable that the range of the cell of the radio communication terminal can be adjusted by controlling the gain of the originating call of the second transceiver.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In adding reference numerals to components of the following drawings, it is determined that the same components have the same reference numerals as much as possible even if displayed on different drawings, and it is determined that they may unnecessarily obscure the subject matter of the present invention. Detailed descriptions of well-known functions and configurations will be omitted.

1 is a block diagram showing a state in which a signal is transmitted inside an embodiment of a wireless communication terminal of the present invention.

In the exemplary embodiment of FIG. 1, the wireless communication terminal includes a first transceiver 101 for exchanging a signal with an external base station, a first RF block 102 for filtering a signal transmitted and received by the first transceiver, and A first baseband block 103 for processing a signal to be filtered at a first RF block or a signal to be filtered, a second transceiver 104 for exchanging a signal with an external mobile station, and a signal transmitted and received at the second transceiver A second RF block 105 for filtering, and a second baseband block 106 for processing the signal to be filtered or the signal to be filtered in the second RF block.

In the above embodiment, the first transceiver 101 and the second transceiver 104 that receive a signal from an external base station or mobile station or transmit a signal to the outside are preferably antennas.

The first RF block 102 and the second RF block 105 are a unit for modulating and demodulating and filtering a frequency of a signal received from an antenna or the like and transmitted from an antenna or the like in a wireless communication terminal. The first RF block 102, which is connected to the first transceiver 101 and filters signals transmitted and received between the base station and the like, is an uplink at the transmitting end Tx, like an RF block provided in a typical mobile communication terminal. The band is filtered to transmit a signal to be transmitted to the first transceiver, and the receiving end Rx receiving the signal received by the first transceiver performs filtering of the downlink band.

In contrast to the first RF block 102, the second RF block 105 transmits a signal to be transmitted to the second transceiver by filtering on the downlink band at the transmitter Tx, and receives the signal received by the second transceiver. The receiving end (Rx) is filtered similarly to the uplink band, it is configured similarly to the RF block that is usually provided in the base station to exchange signals with the mobile communication terminal.

In the above embodiment, the first baseband block 103 and the second baseband block 106 process the signals exchanged with the RF block and the operating system and the operating system of the wireless communication terminal as in the conventional baseband block. And a first baseband block for transmitting and receiving signals transmitted and received through a first transceiver, i.e., a signal exchanged with a base station, and a second baseband block for transmitting and receiving through a second transceiver. It processes the received and exchanged signals with the mobile station.

In the above embodiment, since the first transceiver and the second transceiver are both implemented in the same terminal and configured in the form of an antenna, a signal transmitted from the base station may be received by the second transceiver in addition to the first transceiver. A signal transmitted from the mobile station may be received by the first transceiver in addition to the second transceiver. In this case, since the first baseband block is configured to process signals to and from the base station, and the second baseband block is to process signals to and from the mobile station, the baseband block is not intended to be processed. In this case, it is necessary to take an idle mode, and to do this, it is necessary to distinguish from where the signal received from the first or second transceiver is transmitted from before the signal processing in the first or second baseband block. Needs to be.

Accordingly, in the wireless communication terminal, the unique identification number information included in the signal received by the first transceiver or the second transceiver is down from the signal filtered by the uplink band from the first RF block or from the second RF block. It is preferable to include a unit for determining whether or not matching with the unique identification number information included in the signal filtered into the link band. The unit for determining whether the unique identification number information coincides with the signal input to the first baseband block and the second baseband block together, and operating in conjunction with the first and second baseband block desirable.

As a result of the discrimination in the unit determining whether the unique identification number information matches, a signal in which the unique identification number information of the signal received by the first transceiver or the second transceiver is filtered from the first RF block into the uplink band When the first baseband block matches with the unique identification number information, the second baseband block is driven when the first baseband block matches the unique identification number information included in the downlink band filtered signal from the second RF block. do.

The unique identification number information is preferably an electronic serial number (esn) of the wireless communication terminal. When the wireless communication terminal functions as a general terminal and transmits a signal to a base station and the like, the first baseband block is driven. While the signal is transmitted to the base station, the information of the device serial number of the terminal in the first RF block intervenes in the signal. In this case, the signal transmitted from the base station to the feedback retains the information of the device serial number.

In the case of a signal transmitted as a feedback of a signal derived from the first baseband block, the unique identification number information held by the signal is the same as that of the signal filtered in the first RF block by the device serial number of the wireless communication terminal. Therefore, even when the signal is received in the second transceiver, the second baseband block is placed in the standby state and the first baseband block is driven by the unit for determining whether the unique identification number information matches.

In case of any signal other than the signal transmitted in the feedback of the signal derived from the first baseband block, the signal is a signal transmitted from another mobile station or the like and the unique identification number information held by the signal is a device serial number of another mobile station or the like. For example, the first baseband block is determined by a unit for determining whether the unique identification number information matches even when the signal is received in the first transceiver. The standby state is placed and the second baseband block is driven.

That is, when the unique identification number information is a device serial number, the unit for determining whether the unique identification number information matches the first baseband block when the unique identification number information is the same as the device serial number of the wireless communication terminal; If not the same as the device serial number of the wireless communication terminal to drive the second baseband block respectively.

As described above, the wireless communication terminal determines whether a received signal is a feedback signal from a base station or a signal transmitted from another mobile station for a signal transmitted by itself, and according to the above two cases, the first baseband block or the second base station. The baseband block may be driven to distinguish and communicate with a base station and with another mobile station.

In communicating with the mobile station, the wireless communication terminal preferably generates a pseudo noise code that can function as a BTS such that the mobile station recognizes the wireless communication terminal as being the same as the base station. The wireless communication terminal is recognized as a separate base station by the mobile station by generating the pseudo noise code, and can form a cell independent of the base station in the wireless communication system including the base station and the mobile station. A wireless communication system including the wireless communication terminal will be described with reference to the embodiments of FIGS. 2A to 2D below.

2a to 2d briefly show how signals are transmitted between the mobile station and the base station or the wireless communication terminal according to the position of the mobile station in one embodiment of the wireless communication system of the present invention. In the above embodiment, the wireless communication terminal is a wireless communication terminal mentioned in the embodiment of FIG. 1 and forms an independent cell separate from the cell of the base station.

FIG. 2A illustrates a range in which a cell formed by a wireless communication terminal forming a cell independent of a base station is in charge in the wireless communication system of the present invention, and FIG. 2B illustrates a mobile station in a cell of the base station of FIG. 3C shows that a mobile station exists in a cell of the wireless communication terminal of FIG. 2A to communicate with the wireless communication terminal, but the wireless communication terminal also communicates with a base station, and FIG. 3D shows that the mobile station communicates with the base station. This is a case where a handoff occurs between the base station and the wireless communication terminal when the location between cells is changed from the cell in charge to the cell in charge of the wireless communication terminal.

In FIG. 2A, a wireless communication terminal 203 is located within a range of a specific cell 202 that is served by a base transceiver system (BTS), and the wireless communication terminal forms an independent cell 204. The cell 204 formed by the wireless communication terminal is preferably formed within a predetermined distance with respect to the wireless communication terminal 203. The wireless communication terminal adjusts the strength of a signal transmitted to the mobile station or the like so that the mobile station is recognized as a service server or a base station instead of the base station 201, thereby providing the constant distance or the like. The range of cells in charge of the wireless communication terminal can be adjusted. If the wireless communication terminal is the same as the wireless communication terminal of the embodiment of FIG. 1 mentioned above, the strength of the signal transmitted by the wireless communication terminal to the mobile station or the like can be adjusted by controlling the gain of the transmission signal of the second transceiver.

In FIG. 2B, a mobile station 205 is located within cell 202 of the base station, which is not located within cell 204 of a wireless communication terminal forming the independent cell, thereby communicating 206 with the base station. .

In FIG. 2C, a mobile station 207 is located within a cell 204 of a wireless communication terminal that forms the independent cell, and the mobile station communicates 208 with the wireless communication terminal. The wireless communication terminal 203 communicates 208 with the mobile station as a server or base station, and also 209 with a base station as a normal mobile station.

In FIG. 2D, the mobile station 205 located in the cell of the base station changes 210 to the location of the mobile station 207 located in the cell of the wireless communication terminal. The mobile station communicates 206 with the base station when it is located in the cell 202 of the base station, but communicates with the wireless communication terminal 208 when it is located within the cell 204 of the radio communication terminal, so that the change of the location When it occurs, a handoff occurs that changes the cell that manages the mobile station's connection to the communication network so that services such as call calls that the mobile station has made are maintained without interruption.

In FIG. 2D, when the mobile station is located in a cell of the base station (205), it is in communication with the base station (206), but when the mobile station enters the cell of the wireless communication terminal (207, 210), communication between the mobile station and the base station is lost. It is handed off by communication between the wireless communication terminal and the mobile station. The entry of the mobile station into the cell of the wireless communication terminal is determined by which of the pseudo noise code of the base station and the pseudo noise code of the wireless communication terminal causes the receiving end of the mobile station to detect the greater signal strength.

When the mobile station enters a cell of the wireless communication terminal, the wireless communication terminal recognizes a signal transmitted from the mobile station and downlinks a control signal, an information request signal, and the like, which is normally requested by the base station to the mobile station, and the mobile station communicates with the wireless communication terminal. Uplinking the requested signal to the terminal, and the transmission of the downlink and the reception of the uplink in the wireless communication terminal is performed in the second transceiver, the second RF block, the second baseband block of the wireless communication terminal of FIG. Is performed. The wireless communication terminal requests additional information about the mobile station from a base station or the like, in this case, communicates with a base station through a first transceiver, a first RF block, and a first baseband block of the wireless communication terminal of FIG. Obtains information of the mobile station from the mobile station and manages the mobile station's connection to a wireless communication network.

By performing the handoff as described above, the mobile station maintains a connection to the wireless communication network through the wireless communication terminal and the base station, and the wireless communication terminal can function as a separate service server for the mobile station.

Although FIG. 2D describes only the handoff that occurs when the mobile station moves from a cell of the base station to an independent cell of the wireless communication terminal, the handoff is similarly performed when the mobile station moves out of the cell of the wireless communication terminal to the cell of the base station. Happens.

As described above, it has been described with reference to the preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

As described above, according to the present invention, it is possible to provide a communication service and various other services to a mobile station by using a wireless communication terminal that actively operates in a system and forms an independent cell.

In addition, according to the present invention, in performing various services using a wireless communication terminal, communication and the use of the wireless communication terminal as a separate service server without the need to insert a separate recognition means such as a chip into the terminal and A service system can be provided.

Claims (9)

A first transceiver for transmitting and receiving a signal to and from a base station; A first RF block (RF block) for filtering a signal received from the first transceiver and a downlink band, and filtering a signal transmitted from the first transceiver to an uplink band; A first baseband block for transmitting and receiving a signal with the first RF block and processing a signal filtered by the first RF block; A second transceiver for transmitting and receiving a signal to and from a mobile station; A second RF block for filtering a signal received from the second transceiver to an uplink band and a signal transmitted from the second transceiver to a downlink band; And a second baseband block for transmitting and receiving a signal with the second RF block and processing a signal filtered by the second RF block. The wireless communication terminal of claim 1, wherein the unique identification number information included in the signal received by the first transceiver or the second transceiver is a signal filtered by the uplink band from the first RF block or the first signal; And a unit for discriminating whether or not it matches the unique identification number information included in the signal filtered by the downlink band in the RF block, and the first transceiver or the second transceiver according to the determination result of the unit. If the unique identification number information included in the received signal coincides with the unique identification number information included in the signal filtered from the first RF block into the uplink band, the first baseband block is stored in the second RF block. If the identification number information included in the signal filtered to the downlink band is matched to drive the second baseband block, respectively Wireless communication terminal. The wireless communication terminal of claim 2, wherein the unique identification number information is information of a device serial number. The wireless communication terminal of claim 1, wherein the first transceiver and the second transceiver are antennas. A base station covering a specific range of cells; The wireless communication terminal of any one of claims 1 to 4; And a mobile station, wherein the wireless communication terminal covers a separate cell independent of the cell of the base station and the mobile station is located in a cell of the base station or a cell of the wireless communication terminal. 6. The wireless communication system of claim 5, wherein the wireless communication system calls the call between the mobile station and the base station to a call between the mobile station and the wireless communication terminal or a call between the mobile station and the wireless communication terminal according to the position of the mobile station. And switching to a call between a mobile station and the base station. The wireless communication system of claim 5, wherein the wireless communication terminal exchanges signals with the base station. 6. The wireless communication system according to claim 5, wherein the wireless communication terminal exchanges signals with the base station and the mobile station when the mobile station is located in a cell of the wireless communication terminal. 6. The radio communication system according to claim 5, wherein the range of cells of the radio communication terminal can be adjusted by controlling the gain of the outgoing signal of the second transceiver.

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