KR100664136B1 - A method and a structure and a apparatus of space diversity antenna with cradle for mobile phone - Google Patents

Abstract

The present invention provides a spatial diversity antenna using an external antenna provided in a cradle unit for multimedia communication of a portable terminal, and includes: an antenna antenna unit configured to transmit and receive a high frequency signal allocated to the portable terminal; A matrix switch unit connected to the antenna antenna unit and configured to change and set a high frequency signal transmission path under control; An external antenna unit connected to the matrix switch unit in a detachable state and configured to operate as a diversity antenna; A duplexer unit connected to the matrix switch unit to distinguish a transmission path and a reception path of a high frequency signal and to transmit each path; A diversity amplifier for inputting a received high frequency signal of an external antenna unit which is connected to the matrix switch unit and operated as a diversity antenna and amplifies and outputs a low noise; It is characterized by the configuration including a control unit for controlling and monitoring the operation of each functional unit, etc., operating as a spatial diversity antenna to improve the reception quality of the communication signal, transfer to a high performance external antenna unit to improve the quality of the transmission and reception signal It works.

Description

Cradle diversity antenna device, method and structure of mobile terminal TECHNICAL FIELD [A METHOD AND A STRUCTURE AND A APPARATUS OF SPACE DIVERSITY ANTENNA WITH CRADLE FOR MOBILE PHONE}

1 is a diagram illustrating a diversity antenna function of a portable terminal according to the prior art;

2 is a flowchart illustrating a method for operating a diversity antenna of a mobile terminal according to the prior art;

3 is a functional diagram of a cradle diversity antenna device of a mobile terminal of the present invention;

4 is a diagram illustrating a matrix switch diversity path setting state of a mobile terminal according to the present invention;

5 is a diagram illustrating a matrix switch switching path setting state of a mobile terminal according to the present invention;

6 is a structural diagram of a cradle diversity antenna of a mobile terminal according to the present invention;

7 is a flowchart illustrating a cradle diversity antenna method of a portable terminal of the present invention.

          ** Explanation of symbols on the main parts of the drawing **

100: antenna antenna portion 110: external antenna portion

120: matrix switch unit 130: duplexer unit

140: low noise amplifier 150: first saw filter unit

160: directional coupling section 170: power amplifier

180: diversity amplifier 190: second saw filter

200: high frequency part 210: control part 300: cradle part

310: receptacle part 320: connector part 330: antenna cable part

340: sliding fixing

The present invention is to operate the external antenna unit provided in the cradle unit as a spatial diversity antenna in order to improve the quality of the multimedia communication reception signal of the portable terminal, in particular, the cradle unit for fixing in a detachable state for a long time multimedia communication of the portable terminal The present invention relates to a cradle diversity antenna device, a method and a structure of a portable terminal for selectively operating as a spatial diversity antenna using a high performance external antenna that is integrally formed.

The mobile terminal (UE: USER EQUIPMENT) freely moves in the service area (SERVICE AREA) formed by the corresponding base station (RAN: RADIO ACCESS NETWORK) of the registered mobile communication system and monitors and monitors the mobile switching center (MSC). It is a high-tech wireless communication device that allows an individual to carry it anywhere while always carrying it directly by wirelessly connecting and communicating with a desired party anytime and anywhere through a communication path established by control and switching.

The mobile terminal UE changes its movement speed and location from time to time by guaranteed mobility, and changes the path of a received signal, that is, the surrounding wireless environment.

If it is located in the line of sight (LINE OF SIGHT), there is no obstacle between the mobile terminal (UE) and the base station (RAN), it is the most ideal wireless environment, but in reality, there are countless obstacles between the base station.

Examples of the obstacles include mountains, buildings, propaganda boards, tunnels, underground spaces, and the like. If there are no obstacles, the obstacles are transmitted through direct paths. Alternatively, the signal is transmitted through a diffraction path or a refraction path, and in particular, the signal is transmitted through MULTIPATH or fading in which the indirect path is repeated in an area with many obstacles such as the urban area (URBAN).

The area with high traffic density due to the high usage of mobile terminals is called HOT SPOT area, and it is mainly an urban area that forms a forest as a building, and the data reflection is transmitted by multi-path due to the overlapping reflections of the buildings. Therefore, signal damage is prevented due to multipath fading, interference generated between transmitted signals (ISI: INTERFERENCE), and interference generated between channels (CCI: CO-CHANNEL INTERFERENCE). Occurs badly.

A technique for reducing fading and interference by the MULTIPATH includes diversity technology, and the diversity technology includes frequency diversity, time diversity, polarization (angle) diversity, phase diversity, and space. Diversity and so on.

The diversity antenna arranges a plurality of antenna elements at multiples of a wavelength λ, and each antenna element receives signals transmitted through multipaths by independent paths, and among the received signals. Selecting or adding larger levels will result in higher antenna gain, and typically use a lot of configuration with two antenna elements.

Since the portable terminal is made small in order to ensure mobility and simplicity of portability, it becomes difficult to secure a space or an area for the wavelength λ spacing, which is the separation distance of the antenna element.

The first generation (1G) of the mobile terminal is a communication method using an analog voice level signal, the next generation (2G) includes a text message transmission method by digital data processing, the current next generation (3G) and the voice level signal It uses a multimedia communication method that includes a text message signal and a video signal.

Since the next generation or third generation or 3G multimedia-class communication method includes a video signal, a large amount of data is transmitted, and a bandwidth allocated to a channel CH is required to rapidly transmit such a large amount of data. (BANDWIDTH) should be wide.

In the mobile communication system, a plurality of mobile terminals simultaneously occupy channels to communicate and allocate a wide band for a multimedia-class communication method. Therefore, a frequency band used for wireless communication must be relatively high, for example, a band of 1.8 GHz or more. Use radio frequency of.

As described above, since the band of the radio frequency used in the portable terminal is increased, it is relatively easy to secure a wavelength? Interval, which is a separation distance of the diversity antenna, but the size of the portable terminal is relatively smaller.

The mobile terminal continues to increase the preference of the INTENA antenna, which has increased the portability, and uses a multimedia-class communication method with a large amount of data transmission and high radio frequency, thereby ensuring mobility, and thus receiving sensitivity in a given wireless environment. Is more adversely affected.

Accordingly, there is a need to develop a technique using a diversity antenna in order to increase the reception sensitivity of a multimedia communication signal in the miniaturized portable terminal.

Hereinafter, a diversity antenna method of a portable terminal according to the prior art will be described with reference to the accompanying drawings.

1 is a diagram illustrating a diversity antenna function of a portable terminal according to the prior art, and FIG. 2 is a flowchart of a method of operating a diversity antenna of a portable terminal according to the prior art.

Referring to FIG. 1, a diversity antenna apparatus of a mobile terminal (UE) according to the prior art will be described. The antenna (ANTENNA) unit 10 is an intena (INTENA) built in a portable terminal, and the duplexer 20 Sets different paths between the transmission signal and the reception signal.

The duplexer 20 passes only a radio frequency signal for mobile communication from the signal received by the antenna unit 10, and the passed signal is output to a low noise amplifier (LNA) 30.

The low noise amplifier 30 amplifies the received input signal with low noise and outputs it to the SAW filter unit 40, and the saw filter unit 40 removes a noise component of the input signal to generate a high frequency signal. Output to the unit 50.

The high frequency unit 50 outputs the input signal to the control unit 60 by demodulating the input signal, and the control unit 60 outputs the demodulated received signal through an audio unit not shown in the drawing. The signal input through the unit is applied to the high frequency unit 50.

The high frequency unit 50 modulates a signal input through the control unit 60 and applies it to a power amplifier unit (PAM) 70, and the power amplifier unit 70 inputs the input signal. Amplification to the level LEVEL is applied to the isolator unit 80, the isolator unit 80 applies the input signal to the duplexer unit 20 in one direction.

Since the duplexer unit 20 outputs the signal input from the isolator unit 80 to the antenna unit 10 composed of the antenna, it wirelessly transmits to the base station.

Since the portable terminal is small in size and satisfies portability and mobility, and generally has a weak reception signal, it selectively uses a spatial diversity antenna that increases the gain of the received signal, and provides low noise amplification of a signal received through the spatial diversity antenna. The second low noise amplifier 35 and the second saw filter 45 are connected to the high frequency unit 50, and the second low noise amplifier 35 is external to diversity by selection. The antenna 15 is connected.

As described above, the reception gain of the weakly received radio signal is improved by using the diversity antenna configured according to the related art, but the distance between the external antenna 15 and the antenna antenna 10 fixed integrally with the portable terminal is The spacing of the wavelengths λ must be maintained.

However, since it is difficult to maintain a constant distance between the antenna 10 of the portable terminal and the external antenna 15 for spatial diversity, it is difficult to expect a large effect.

Hereinafter, a diversity antenna method of a portable terminal according to the prior art will be described with reference to FIG. 2.

If the portable terminal determines whether to perform a multi- (multimedia) communication including a voice signal, a text message signal and a video signal (S10), and if the multimedia communication is to be performed in the determination (S10), whether a diversity antenna is used. Determine (S20).

In the case where the diversity antenna is used for multimedia communication in the determination (S20), an external diversity antenna is connected and driven to the diversity antenna connection terminal (S30).

The portable terminal driving the diversity antenna in step S30 may wirelessly connect with the base station and communicate by call connection processing. When receiving the radio signal from the base station RAN in the communication, the driven diversity ( DIVERSITY) to use the antenna system (S40).

Diversity antenna operating method according to the prior art of the configuration as described above, the distance between the antenna fixed to the mobile terminal (UE) and the external antenna, it is difficult to maintain a constant wavelength (λ) distance by the radio frequency used. there is a problem.

In addition, there is a problem that can not replace the performance of the antenna fixed to the portable terminal with a high performance external antenna.

According to the present invention, a matrix switch is integrally provided between the portable terminal and the antenna, and the external antenna unit provided in the cradle unit is selected to replace the internal antenna unit with the internal antenna unit or to establish a diversity antenna, and simultaneously slide the cradle. It is an object of the present invention to provide a cradle diversity antenna device, a method and a structure of a portable terminal for adjusting the structure of a fixed part to set an angle suitable for multimedia communication.

In order to achieve the above object, the present invention includes an antenna antenna unit for transmitting and receiving a high frequency signal embedded in the portable terminal; A matrix switch unit connected to the antenna antenna unit and configured to change and set a high frequency signal transmission path under control; An external antenna unit connected to the matrix switch unit in a detachable state and configured to operate as a diversity antenna; A duplexer unit connected to the matrix switch unit to distinguish a transmission path and a reception path of a high frequency signal and to transmit the received paths to respective paths; A diversity amplifier which is connected to the matrix switch unit and inputs a received high frequency signal of an external antenna unit operated as a diversity antenna to amplify and output low noise; Characterized in that the configuration comprises a control unit for controlling and monitoring the operation of each functional unit.

In addition, the present invention has been made in order to achieve the above object, the mounting portion for fixing the mobile terminal main body in a detachable state; A receptacle unit integrally formed at a lower end of the seating unit and connected to a receptacle terminal of a portable terminal; A connector portion configured on one side of the seating portion and connected to and disconnected from the matrix switch terminal of the portable terminal; An external antenna unit configured to be fixed to an upper end portion of the seating unit to wirelessly transmit and receive a mobile communication high frequency signal; It is configured to be fixed to the rear portion of the seating portion is configured to include a sliding fixing part that moves when an external force is applied, and an antenna cable part electrically connecting the connector part and the external antenna part.

In addition, the present invention has been made in order to achieve the above object, the multimedia communication to the mobile terminal, the preparation process for determining whether to use a diversity antenna; A cradle process of mechanically fixing and electrically connecting the portable terminal to the cradle unit when using the diversity antenna, and setting and driving an external antenna unit connected to the cradle unit as a diversity antenna; A connection process of setting an angle of the connected cradle and communicating by call processing request; Determining whether to use an external antenna when the diversity antenna is not used in the preparation process, and when the external antenna is not used, proceeding to the connection process to perform call processing and communication; In the case of using the external antenna in the external process, it is characterized in that it is made of a transfer process of connecting to the cradle portion, switching the external antenna portion to switch, and proceeding to the connection process.

Hereinafter, a cradle diversity antenna device, a method and a structure of a mobile terminal according to the present invention will be described with reference to the accompanying drawings.

3 is a diagram illustrating a functional configuration of a cradle diversity antenna device of a mobile terminal according to the present invention, and FIG. 4 is a state diagram of a matrix switch diversity path setting of the mobile terminal according to the present invention. 5 is a diagram illustrating a matrix switch switching path setting state of the portable terminal according to the present invention, FIG. 6 is a structural diagram of a cradle diversity antenna of the portable terminal according to the present invention, and FIG. 7 is a cradle diversity of the portable terminal according to the present invention. It is an antenna method flowchart.

Referring to FIG. 3, the cradle diversity antenna device of the mobile terminal according to the present invention is to transmit and receive an allocated high frequency signal embedded in the mobile terminal for mobile communication, and does not protrude outside the mobile terminal. An antenna antenna unit 100 which is integrally provided inside the antenna and wirelessly transmits and receives radio frequency signals allocated to mobile communication,

A matrix switch unit 120 connected to the antenna antenna unit 100 and operating as a diversity antenna or alternately connecting a high frequency signal transmission path with an external antenna unit under control;

It is connected to the matrix switch unit 120 in a detachable state and is set and operated as a diversity antenna, and is integrally formed in a cradle that fixes the portable terminal in a detachable state, and is connected to and disconnected from the matrix switch unit 120 by a connector. It is integrally fixed to the cradle that fixes the portable terminal in a detachable state, and is connected to the matrix switch unit 120 of the portable terminal in a state where the portable terminal is attached to and fixed to the cradle, and is configured to set the path of the matrix switch unit 120. An external antenna unit 110 constituting a spatial diversity antenna with the antenna antenna unit 100 or having a connection path established with the duplexer unit 130;

A duplexer unit 130 connected to the matrix switch unit 120 for distinguishing a transmission path and a reception path of a high frequency signal and transmitting them to respective corresponding paths;

A low noise amplifier (LNA) unit 140 connected to the duplexer unit 130 and amplifying and outputting a received high frequency (RF) signal with a low noise;

A first saw (SAW) filter unit 150 connected to the low noise amplifier 140 and outputting the high frequency signal by cutting off a noise high frequency signal band;

A high frequency unit 200 for inputting a high frequency signal applied from the first saw filter unit 150 and demodulating and outputting the high frequency signal;

When the external antenna unit 110 is connected to the high frequency unit 200, input / output processing of a multimedia communication signal, and controlling and monitoring the operation of the entire portable terminal are monitored and controlled by the matrix switch unit 120. Control the matrix switch unit 120 by selection, and set the diversity antenna path of the antenna antenna unit 100 and the external antenna unit 110 or route the external antenna unit 110 to the antenna antenna unit 100. A control unit 210 which is alternately set and connected to the duplexer unit 130,

A power amplifier (PAM: POWER AMPLIFIER MODULE) unit 170 for amplifying and outputting a high frequency signal modulated from the high frequency unit 200 to a predetermined level;

Directional coupling unit 160 to prevent the high frequency (RF) signal applied from the power amplifier 170 to flow in the reverse direction, and outputs to the duplexer 130 in one direction (ISOLATOR),

A diversity amplification unit 180 connected to the matrix switch unit 120 and inputting a received high frequency signal of an external antenna unit operated as a diversity antenna to amplify and output low noise;

The second saw filter unit 190 is configured to block the noise signal of the high frequency signal applied from the diversity amplifier 180 and to output the high frequency unit 200.

Hereinafter, the present invention having the configuration described above will be described in detail with reference to FIGS. 3, 4, and 5 attached to the cradle diversity antenna apparatus of the portable terminal.

The portable terminal (UE) that communicates using a multimedia signal has a built-in antenna (ANTENNA) unit 100 that does not protrude an antenna provided in a protruding form for miniaturization, portability, and mobility. It consists of.

Analyzing the market demand of the portable terminal, it is gradually required to have an internal antenna unit 100 of the built-in type, and the results of the market research according to an experiment example, about 86% of the new portable terminal by 2006 It has been investigated that the part 100 will be employed.

The reason for employing the antenna antenna unit 100 as described above is that the miniaturized design of the mobile terminal (UE) is possible, the flexibility of the external design is increased, and the protrusions are eliminated, so that the portable and storage are convenient, and the antenna is damaged. The rate is lowered, resulting in fewer failures, and reducing the burden on repair or replacement costs for consumers.

However, the transmission (TX) and reception (RX) functions, which are the functions of the antenna, are proportional to the length of the antenna, and the radio signal radiation (RADIATION) efficiency and reception performance of the built-in antenna antenna unit 100 are not deteriorated compared to the existing protrusion type. It should not be, but due to the theoretical and experimental results of the normal function only when there is no obstacle around, compared to the protruding external antenna, the performance of the internal antenna antenna 100 is bound to fall.

That is, in the current technology, since the internal antenna antenna unit 100 has a problem of lowering transmission and reception sensitivity than the external antenna, it is a technique of the present invention to solve the above problem.

The present invention includes a matrix switch unit 120 having two inputs and two outputs between the antenna antenna unit 100 and the duplexer unit 130, and the matrix switch unit 120 is controlled by the control unit 210. Switch the transmission path of high frequency signal.

An external antenna unit 110 is connected to the other input terminal of the matrix switch unit 120, and the external antenna unit 110 is a high performance antenna that is configured to protrude from the cradle unit 300.

When the portable terminal UE is fixedly attached to the cradle 300, the external antenna unit 110 maintains a distance between the antenna antenna unit 100 provided at the portable terminal and the wavelength λ.

When the mobile terminal UE is fixedly attached to the cradle 300, the antenna antenna 100 and the external antenna 110 is used as a space diversity antenna, so the quality of the received signal It is a configuration to improve.

The controller 210 does not connect the mobile terminal UE to the cradle 300, and thus, when the external antenna 110 is not connected to the matrix switch 120, the controller 210 connects the matrix switch 120. As shown in FIG. 4, the antenna antenna 100 and the duplexer 130 are connected to each other.

The radio signal received by the antenna antenna unit 100 is applied to the duplexer unit 130 through the matrix switch unit 120, the duplexer unit 130 is a low noise amplifier (LNA) by the path of the received signal Since it is applied to 140, the amplified output with low noise, and the amplified output signal is applied to the first saw filter unit 150 to remove the noise component is applied to the high frequency unit 200.

The high frequency unit 200 demodulates the input signal, converts the signal into a baseband signal, and applies it to the control unit 210. The control unit 210 applies and outputs the audio unit to the audio unit, not shown. The AUDIO signal input through the high frequency unit 200 is output.

The high frequency unit 200 converts an audio signal input from the control unit 210 into a high frequency RF signal, modulates a corresponding MODULATION, and outputs the same to a power amplifier PMA 170. The power amplifier 170 amplifies the power at a predetermined level LEVEL and outputs the power to the directional coupler 160, and the directional coupler 160 in one direction to the duplexer 130. Is passed to.

Since the duplexer unit 130 outputs a radio frequency (RF) signal applied from the directional coupler 160 to the antenna antenna unit 100 through a path formed by the matrix switch unit 120, the duplexer unit 130 emits a radio signal. RADIATION).

The mobile terminal UE is as described above. For example, since it is a folding type, slide type, bar type, etc., and is made small, it is possible to carry out video communication of 3G multimedia VT (VIDEO TELEPHONY) including a video signal for a long time. In this case, since it is difficult to continue communication with the hand, it is common to fix it using the cradle (CRADLE) unit 300 as shown in FIG.

Since the cradle unit 300 is not limited by physical size, the cradle unit 300 includes an antenna having good transmission and reception sensitivity, and a structure capable of adjusting an angle for convenient viewing angle adjustment of a multimedia signal in a desk top. Have

Particularly, in order to provide a communication service based on high quality of service (QoS: QUALS OF SERVICE) in a poor surrounding wireless environment in an urban area, the cradle unit 300 provides a high reception sensitivity of a radio signal. SPACE DIVERSITY antenna scheme is applied.

Since the external antenna unit 110 provided in the cradle unit 300 maintains a distance interval corresponding to the antenna antenna unit 100 and the wavelength λ, it is possible to apply a spatial diversity antenna method.

That is, since the matrix switch unit 120 sets the path as shown in FIG. 4, the control unit 210 controls the diversity of the external antenna unit 110 and the diversity provided in the cradle unit 300. A path with the amplifier 180 is set.

When the spatial diversity antenna system is configured as described above, the wireless signal received from the external antenna unit 110 is applied to the diversity amplifier 180 to be amplified with a low noise characteristic and amplified as described above. The high frequency (RF) signal is applied to the second saw filter unit 190 and the noise high frequency signal component is removed and applied to the high frequency unit 200.

The high frequency unit 200 performs a demodulation process on a signal applied by the second saw filter unit 190 as described above under the control of the control unit 210 and converts the signal into a baseband signal. The controller 210 converts the signal to the controller 210 and outputs the received signal to the controller 210. The controller 210 selects or adds an optimal signal to the signal applied from the antenna antenna unit 100 by the corresponding process to increase the antenna reception gain GAIN. .

The controller 210 selects and operates the external antenna unit 110 that is integrally provided in the cradle unit 300 and connected to the matrix switch unit 120 as the spatial diversity antenna system as described above. If necessary, the antenna antenna unit 100 may be replaced or switched to operate.

Since the controller 210 controls the matrix switch unit 120 to set the path of FIG. 5, the external antenna unit 110 having a high performance transmission / reception function is connected to the duplexer unit 130. To replace the function of the antenna antenna unit 100.

Accordingly, the present invention having the above-described configuration is used for the video communication of the VT for a long time in a folding type, bar type, slide type, etc. by miniaturization and diversification of a multimedia portable terminal. Since the cradle unit 300 is used, a spatial diversity antenna method for increasing the gain GAIN of the received signal is selected.

In addition, a 3G wireless transmission system employs a SPACE DIVERSITY antenna to transmit 15 FPS (FRAME PER SECOND) at a QCIF level in which the frame unit of the video signal has a size of 176 pixels by 144 pixels (PIXEL). The signal reception sensitivity is increased, and the reception radio wave quality is improved. As a result, the service area or the cell coverage of the base station RAN is expanded.

In addition, by using the cradle unit 300 to implement a spatial diversity antenna system that requires a certain distance while meeting the physical miniaturization trend of the portable terminal, while also using a USB connection method for processing the battery charging and multimedia data, etc. There is an advantage to providing.

In addition, when the mobile terminal is not used for communication, the matrix switch unit 120 is controlled to turn off the path between the antenna antenna unit 100 and the duplexer unit, thereby reducing overall power consumption in the mobile terminal. There is an advantage, and instead of the antenna antenna unit 100, because the transfer operation to the external antenna unit 110, there is an advantage to improve the quality of the radio signal transmitted and received.

Hereinafter, a cradle diversity antenna structure of a mobile terminal according to the present invention will be described with reference to FIG. 6.

A cradle portion 300 for mechanically fixing and electrically connecting a mobile terminal for a mobile communication in a detachable state, comprising: a seating portion for fixing and fixing a mobile terminal (UE) main body in a detachable state;

It is integrally formed at the lower end of the seating portion and is connected to the receptacle terminal of the portable terminal. Receptacle unit 310 for transmitting a signal,

A connector part 320 formed at one side of the seating part and connected to and disconnected from the matrix switch terminal of the portable terminal;

It is fixed to the upper end of the seating portion to wirelessly transmit and receive a mobile communication high-frequency signal, when the mobile terminal is fixedly fixed, the external to form a predetermined distance with the antenna antenna 100 built in the mobile terminal is selected and operated as a diversity antenna Antenna unit 110,

It is fixed to the rear portion of the seating part is configured to move when the external force is applied, the sliding is moved up and down when the external force is applied, and when the external force is removed, it is moved up and down to maintain the state, the sliding state A sliding fixing part 340 for changing an angle set by the seating part;

An antenna cable part 330 is connected to the connector part 320 and the external antenna part 110 and electrically connected thereto.

Hereinafter, according to the present invention having the configuration described above, a cradle diversity antenna structure of a mobile terminal will be described in detail with reference to the accompanying drawings.

The cradle unit 300 is configured to integrally configure the external antenna unit 110 on one side, and to the rear surface having a bottom surface, when an external force is applied, the sliding unit (SLIDING) moves, and when the external force is removed, the sliding state is fixed. The sliding fixing part 340 to maintain is integrally formed.

In addition, the outer portion of the mounting portion for attaching the mobile terminal to the cradle 300, the fence shape for mechanically holding the attached mobile terminal is integrally provided, the lower end of the fence shape receptacle of the mobile terminal The receptacle portion 310 electrically connected to the terminal is provided integrally.

The cradle part 300 is a connection part provided in the matrix switch part 120 of the mobile terminal to attach the mobile terminal UE in a fixed state by a fence-shaped portion of the outer portion of the seating portion. In order to connect the connector 320 to the connector, it is electrically connected.

In the state in which the connector unit 320 is connected to the matrix switch unit 120 as described above, the connector unit 320 is connected to the external antenna unit 110 by the antenna cable unit 330, and the external antenna unit 110 is connected to the matrix switch unit 120.

Since the matrix switch unit 120 sets a path as shown in FIG. 4 attached by the control unit 210, the antenna antenna unit 100 and the external antenna unit 110 of the portable terminal are spatial diversity antennas. Form and operate as a diversity antenna system.

When the control unit 210 controls the matrix switch unit 120 to set the path as shown in FIG. 5, the antenna antenna unit 100 and the external antenna unit 110 are replaced or replaced. .

The portable terminal fixedly attached to the seating unit in a detachable state is compact and capable of multimedia communication, and the multimedia communication transmits and receives video signals by 3G method.

The cradle unit 300 is difficult to hold the mobile terminal UE for a long time by hand when the multimedia communication is continued for a long time by using the mobile terminal UE, and also shakes or photographs due to vibration of the hand. This is to solve a problem such as a change in the position of the object.

As described above, the cradle unit 300 which fixes the mobile terminal UE in a detachable state should be able to change and adjust the angle ANGLE in order to accurately point out a photographing target or to facilitate the user to observe the displayed image signal. And, by changing the angle by the sliding fixing portion (340).

The sliding fixing part 340 is moved up and down in a sliding state by an external force, and when the external force is removed, the sliding fixing unit 340 is fixed to maintain a state in which it is slid and moved up and down.

The receptacle unit 310 provides a USB interface for charging a charge / discharge battery of a mobile terminal and externally processing a multimedia signal.

Hereinafter, a cradle diversity antenna method of a portable terminal according to the present invention will be described with reference to FIG.

In the case of multimedia communication with a mobile terminal for mobile communication, it is determined whether to use a diversity antenna, and wireless connection with a designated party using a multimedia signal including a voice signal, a message signal, and a video signal using the portable terminal. Determining whether or not to communicate (S100); When the multimedia communication with the other party in the process (S100), the preparation process consisting of the step (S110) of determining whether to use a diversity antenna to secure the gain (GAIN) of the received multimedia signal;

When the diversity antenna is used in the preparation process, the diversity terminal is connected to the cradle unit 300 and the external antenna unit 110 is connected to drive the diversity antenna. The portable terminal is mechanically fixed to the cradle unit 300. Attaching and electrically connecting (S120); A cradle process comprising a process of setting and driving an antenna of the cradle unit 300 connected in the process S120 as a diversity antenna (S130);

By setting the angle of the cradle unit 300 connected in the cradle process and communicating by a call processing request, by sliding the position of the sliding fixing unit 340, the angle of the cradle unit 300 at any angle Setting to change to step S170; A connection process consisting of controlling a mobile terminal UE attached to the cradle unit 300 of the above process and communicating with the called party (S80);

Determining whether to use an external antenna when the diversity antenna is not used in the preparation process, if the external antenna is not used, the process proceeds to the access process (S180) and the call process and communication (S140),

When the external antenna is used in the external process (S140), it is connected to the cradle unit 300, the external antenna unit is switched to the switching setting, and the process proceeds to the connection process (S170). When using the external antenna unit 110 instead of (100), the step of mechanically fixed and electrically connected to the mobile terminal to the cradle unit 300 (S150); In the process (S150) it is a configuration consisting of a switching process consisting of the step (S160) of switching the external antenna unit 110, which is integrally formed in the cradle unit 300 and the transfer setting with the antenna antenna unit 100.

Hereinafter, the cradle diversity antenna method of the mobile terminal according to the present invention having the above configuration will be described in detail with reference to the accompanying drawings.

When the multimedia (MULTIMEDIA) portable terminal using the voice signal, the text message payment signal and the video signal including the motion sickness (multimedia) communication is determined (S100), if the multimedia communication in the determination (S10) In operation S110, it is determined whether to use a diversity antenna.

In the case of using the diversity antenna in the determination (S100), since it is connected to the cradle unit 300, the matrix switch unit 120 and the connector unit 320 of the portable terminal are electrically connected using the corresponding connector. In addition, the connector unit 320 is connected to the external antenna unit 110 by the antenna cable unit 330, and the portable terminal is connected to the external antenna unit 110 (S120).

As the external antenna unit 110 connected as described above, the matrix switch unit 120 sets the path as shown in FIG. Set and drive the diversity antenna system (S130).

When the diversity antenna system is driven as described above, the sensitivity of the received signal is improved, thereby improving the quality (QoS) of the multimedia received signal and at the same time, increasing the service area or the cell cover of the base station RAN. do.

In the state of multimedia communication using a portable terminal for driving the diversity antenna system as described above, in order to set the photographing angle of the video signal to be captured and to easily observe the output video signal, Since the position is adjusted by sliding movement, the angle formed by the cradle 300 is changed and set, and as a result, the angle set by the mobile terminal is changed and set (S170).

The diversity antenna system is driven as described above, and the call connection processing with the designated counterpart is performed while the angle change setting for the multimedia is completed.

If it is determined in the preparation process (S110) that the diversity antenna is not used, it is determined whether to use an external antenna (S140), and if the external antenna is not used in the determination, the process proceeds to the connection process (S180). , The call connection process and communication with the specified counterpart (S180).

If it is determined in the external process (S140) that the external antenna is used, the connector of the matrix switch unit 120 and the cradle unit 300 is connected to the mobile terminal UE at the same time. Since the connection unit 320 is connected, the external antenna unit 110 is connected to the matrix switch unit 120 (S150).

Since the external antenna unit 110 connected as described above is alternately connected or switched over with the antenna antenna unit 100 of the portable terminal, it is set to be connected to the duplexer unit 130 (S160), and proceeds to the connection process. By sliding the sliding fixing part 340, the cradle 300 is set at an angle suitable for multimedia communication (S170), and communication by call connection processing is performed (S180).

According to the present invention having the above-described configuration, the VT multimedia communication of mass data transmission corresponding to QCIF (QUARTER COMMON INTERFACE FORMAT) level, 15 FPS or more, using the antenna antenna unit 100 fixedly installed in the portable terminal. In order to improve the quality of radio waves, a spatial diversity antenna scheme is provided.

In particular, the problem that the wavelength (λ) interval cannot be secured due to the size of the miniaturized portable terminal is secured, and the spatial diversity antenna having a constant wavelength (λ) interval is secured by using the cradle unit 300 necessary for a long time multimedia communication. Provide advantages.

In addition, instead of the antenna antenna 100 provided in the built-in state of the portable terminal, the high performance external antenna unit 110 is connected and connected, thereby improving the quality of transmission and reception signals, thereby improving multimedia communication.

The present invention having the above-described configuration, by using a cradle portion for fixing the wavelength interval that can not be secured in the small portable terminal in a detachable state for a long time multimedia communication, to secure the external antenna of the wavelength interval, and operate as a spatial diversity antenna Therefore, there is an industrial use effect to improve the reception quality of the communication signal.

In addition, there is a convenience effect in use to improve the quality of the transmission and reception signal by switching to a high performance external antenna instead of the antenna antenna unit provided in the built-in state of the portable terminal itself.

Claims (17)

An antenna antenna unit for transmitting and receiving the allocated high frequency signal embedded in the mobile terminal; A matrix switch unit connected to the antenna antenna unit and configured to change and set a high frequency signal transmission path under control; An external antenna unit connected to the matrix switch unit in a detachable state and configured to operate as a diversity antenna; A duplexer unit which is connected to the matrix switch unit and distinguishes a transmission path and a reception path of a high frequency signal and transmits each path; A diversity amplifier for inputting a received high frequency signal of an external antenna unit which is connected to the matrix switch unit and operated as a diversity antenna and amplifies and outputs a low noise; Cradle diversity antenna device of the portable terminal, characterized in that the control unit for controlling and monitoring the operation of each functional unit is included. delete The antenna of claim 1, wherein the antenna antenna unit comprises: Cradle diversity antenna device of the portable terminal, characterized in that it is integrally provided inside so as not to protrude to the outside of the portable terminal and configured to wirelessly receive and wirelessly receive a high frequency signal assigned to mobile communication. The method of claim 1, wherein the external antenna portion, Cradle diversity antenna device of the portable terminal, characterized in that integrally configured to the cradle for fixing the portable terminal in a detachable state, and configured to be connected to and disconnected by the connector to the matrix switch unit. The method of claim 4, wherein the external antenna portion, It is integrally fixed to the cradle that fixes the portable terminal in a detachable state, and the portable terminal is connected to the matrix switch unit of the portable terminal in a state where the portable terminal is attached to and fixed to the cradle, and the antenna switch unit and the space diver are set by routing the matrix switch unit. A cradle diversity antenna device of a portable terminal, comprising a city antenna or a configuration in which a duplexer unit and a connection path are alternately set. The method of claim 1, wherein the control unit, When the external antenna unit is connected to the matrix switch unit, the matrix switch unit may be selectively controlled to set the diversity antenna paths of the antenna antenna unit and the external antenna unit, or the external antenna unit may be replaced with the antenna antenna unit to connect the duplexer unit. Cradle diversity antenna device of a mobile terminal, characterized in that consisting of. A seating part for fixing and mounting the main body of the mobile terminal in a detachable state; A receptacle unit integrally formed with a lower end of the seating unit and connected to a receptacle terminal of the portable terminal; A connector portion configured on one side of the seating portion and connected to and disconnected from the terminal of the matrix switch portion of the portable terminal; An external antenna unit configured to be fixed to an upper end portion of the seating unit to wirelessly transmit and receive a mobile communication high frequency signal; A sliding fixing part configured to be fixed to the rear part of the seating part to move when an external force is applied; Cradle diversity antenna structure of the portable terminal, characterized in that the configuration comprising a configuration comprising an antenna cable for electrically connecting the connector and the external antenna. delete The method of claim 7, wherein the sliding fixing unit, The seating part is configured on the rear part, and when the external force is applied, the sliding part moves, and when the external force is removed, the sliding part maintains the moved state and is configured to change the angle set by the seating part by the sliding state. Cradle diversity antenna structure of a mobile terminal. The method of claim 7, wherein the external antenna portion, When the portable terminal is fixedly mounted on the seating portion, the cradle diversity antenna structure of the portable terminal, characterized in that the predetermined distance to the antenna antenna built in the portable terminal is configured to operate as a diversity antenna. The method of claim 7, wherein the receptacle portion, It is integrally configured at the end of the seating portion, integrally provided at one side of a fence shape for fixing the portable terminal in a detachable state, and configured to electrically connect with a receptacle terminal of the portable terminal to transmit a corresponding signal. Cradle diversity antenna structure of a mobile terminal. In the case of multimedia communication with a mobile terminal, a preparation process for determining whether to use a diversity antenna, A cradle process of mechanically fixing and electrically connecting the portable terminal to the cradle unit when using the diversity antenna, and setting and driving an external antenna unit connected to the cradle unit as a diversity antenna; A connection process of setting an angle of the connected cradle and communicating by call processing request; Determining whether to use an external antenna when the diversity antenna is not used in the preparation process, and when the external antenna is not used, proceeds to the connection process to perform call processing and communication; When the external antenna is used in the external process, the cradle diversity antenna method of the portable terminal, characterized in that the connection to the cradle portion, the external antenna portion is switched to set by switching and the transfer process proceeds to the connection process. delete The method of claim 12, wherein the preparation process, Determining whether to wirelessly connect and communicate with a designated party using a multimedia signal including a voice level signal, a message level signal, and a video level signal using the portable terminal; When the multimedia communication with the other party, the cradle diversity antenna method of the portable terminal, characterized in that the process of determining whether to use a diversity antenna to secure the gain of the received multimedia signal. delete The method of claim 12, wherein the connection process, The process of setting the angle of the cradle portion connected in the cradle process is changed to an arbitrary angle by sliding the sliding fixing; Cradle diversity antenna method of the portable terminal characterized in that it comprises the step of controlling the mobile terminal attached to the cradle to communicate with the called party. The method of claim 12, wherein the transfer process, In the case of using the external antenna instead of the antenna antenna unit in which the portable terminal is embedded, the process of fixedly attaching and electrically connecting the portable terminal to the cradle; Cradle diversity antenna method of the portable terminal, characterized in that for switching the external antenna unit integrally configured with the cradle portion to set the antenna antenna unit.

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