KR20050028688A - A method and apparatus of smart antenna system for mobile phone - Google Patents

Abstract

A smart antenna device and a method of a portable terminal are provided to wirelessly transmit 3G TD-SCDMA and WCDMA signals to smart antennas, respectively, and to separate signals received in the smart antennas into TD-SCDMA signals from WCDMA signals, then to process the received signals through combining/multimedia processes, thereby reducing the number of components. The first smart unit(100) receives 3G TD-SCDMA and WCDMA signals to output the signals to paths separated by a circulator(140), wirelessly transmits the outputted signals to one antenna(110) by switching the signals, and switches signals wirelessly received in the antenna(110) to apply the switched signals to TD-SCDMA and WCDMA paths. The second smart unit(200) receives 3G TD-SCDMA and WCDMA signals to output the signals to paths separated by a circulator(240), wirelessly transmits the outputted signals to one antenna(210) by switching the signals, and switches signals wirelessly received in the antenna(210) to apply the switched signals to TD-SCDMA and WCDMA paths. A processing controller(300) multiple-generates the TD-SCDMA and WCDMA signals, combines the signals together, and outputs a control signal. A multimedia unit(400) processes the signals in multimedia type.

Description

Smart antenna device and method of mobile terminal {A METHOD AND APPARATUS OF SMART ANTENNA SYSTEM FOR MOBILE PHONE}

By applying the space diversity smart antenna to the dual mode portable terminal, in particular, in the dual mode portable terminal that accepts both the next-generation mobile communication TD-SCDMA and WCDMA system signals for transmitting and receiving high-speed multimedia data, the circuit configuration is simplified. The present invention relates to a smart antenna device and a method of a portable terminal for applying a space diversity smart antenna at a low cost by reducing the number of parts and reducing the size.

The mobile communication system is a mobile terminal (MS) registered and registered, and freely moves in the service area, and communicates with the other party at any time and anywhere by wireless connection. The communication method using an initial voice level signal includes a symbol. It is developing into a multimedia communication method including a text communication method and a video signal.

The text communication method and the multimedia communication method are data communication methods using digital data signals. In particular, in the case of a video signal included in the multimedia communication method, the amount of data to be transmitted is large. It is evolving into 2nd generation (2G: GENERATION) and 2.5th generation mobile communication systems, and is now developing into the next generation 3rd generation (3GPP: 3rd GENERATION PARTNERSHIP PROJECT) mobile communication system.

The next generation mobile communication system (3GPP), which is the third generation mobile communication system (3GPP), has been adopted in China, and has been developed in the code division multiple access (CDMA) method. : Wideband Code Division Multiple Access (WCDMA) is an evolution from GLOBAL SYSTEM FOR MOBILE COMMUNICATION.

The TD-SCDMA scheme uses a radio frequency signal of some bands as a carrier frequency from 1880 MHz to 2025 MHz band (BANDWIDTH), and the WCDMA scheme uses a radio frequency of 1920 MHz to 1980 MHz in a mobile terminal. It is used as the transmission carrier frequency, and the radio frequency in the 2110 MHz to 2170 MHz band is used as the reception carrier frequency of the mobile terminal, and the frequency bands are adjacent to each other.

The next generation (3GPP) mobile communication system as described above requires a higher data transmission rate and a stable quality of service (QOS: QUALITY OF SERVICE) than the existing 2G or 2.5G mobile communication system.

In addition, the hot spot (HOT SPOT) area with high traffic density and high traffic density, which require the above conditions, is mainly an urban area consisting of forests as buildings, and the hot spot area as described above overlaps with reflections of buildings and the like. Since the data signal is transmitted through the MULTI PATH, the interference generated between the multipath fading and the transmitted signal (ISI: INTER SYMBOL INTERFERENCE) and the channel (CHANNEL) is generated. CHANNEL INTERFERENCE) causes severe signal damage.

As a technique for reducing fading and interference as described above, there is a diversity technique, and the diversity technique includes frequency diversity, time diversity, polarization (angle) diversity, phase diversity, spatial diversity, and the like. In order to improve the quality of a wireless signal transmitted and received by the SPACE DIVERSITY, a smart antenna system (SMART ANTENNA SYSTEM).

As described above, in the next generation (3GPP) mobile communication system that transmits digital data signals at high speed, it is necessary to develop a method for reducing data corruption. In particular, a dual mode (TD-SCDMA method and a WCDMA method in which radio frequency bands are adjacent to each other) is required. DUAL MODE) It is necessary to develop technology that reduces the size and weight of the portable terminal, reduces the size, makes the configuration simple, and lowers the price.

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

1 is a functional configuration diagram and a usage environment diagram of a general mobile communication system, FIG. 2 is a radio frequency allocation state diagram of a third generation mobile communication terminal, and FIG. Smart antenna operation function configuration of the third generation portable terminal.

Referring to FIG. 1, a general mobile communication system includes: a third generation mobile terminal (MS) 10 for freely moving in a mobile communication service area and communicating with the other party at any time and wirelessly; A hot spot area 20 having a large amount of communication at the same time as the obstacles such as high-rise buildings are concentrated on the transmission path of the radio signal; A base station (BS) 30 wirelessly connected to the portable terminal 10 to transmit and receive 3G communication signals and to form a mobile communication service area; A mobile switching station (MSC: MOBILE SWITCHING CENTER) 40 which analyzes and switches the call connection request signal applied to the base station 30 to establish a communication path and simultaneously monitors and controls the entire mobile communication system.

In the general mobile communication system as described above, the mobile terminal 10 freely moves in a service area defined by the base station 30 and communicates with the other by wireless connection.

If there is no obstruction between the mobile terminal 10 and the base station 30, the radio signal to be transmitted and received is transmitted in search of the transmission path according to the shortest distance, but if there is an obstruction, it is transmitted through reflection and diffraction.

In particular, the area where the buildings form a forest, such as the city center, and the area with high communication is called a hot spot area 20, and the hot spot area 20 as described above is, for example, made of a building or the like. The radio signal transmitted between the mobile terminal 10 and the base station 30 is reflected or diffracted by the first obstacle 22, and the radio signal is transmitted to another echo by the second obstacle 24. Transmitted by reflection or diffraction.

As described above, in the hot spot area 20, since the plurality of obstacles 22 and 24 overlap and interfere between the mobile terminal 10 and the base station 30, reflection and diffraction are repeatedly transmitted. Likewise, the radio signal reflected and diffracted in each direction has a long and short difference in the distance of the transmission path, and also a difference in the degree of signal intensity (LEVEL) and unnecessary noise (NOISE).

As described above, since the radio signal passing through the hot spot area 20 is transmitted through a plurality of transmission paths in which reflection and diffraction overlap, that is, transmitted through a multipath, the receiving side has a difference between fading and each path difference. This causes a problem such as a phase difference of the signal.

In particular, in the 3rd generation (3GPP) mobile communication system, since a large amount of data transmitted and received is simultaneously transmitted at a high speed, data damage is caused by multipath fading.

One of the techniques to solve the above-described multipath problem is a smart antenna system based on spatial diversity, in which a plurality of antennas are spaced at wavelength intervals and transmit and receive radio signals.

The diversity antenna controls the beam direction of the transmitted / received radio signal, thereby increasing the size of the service area or the cell with less power and transmitting / receiving the signal in a good signal transmission direction, thereby reducing the signal-to-noise ratio (SNR). There are advantages such as improvement.

Referring to FIG. 2, an embodiment shows a radio frequency region allocated for a third generation mobile communication system in the CHINA region. The TD-SCDMA scheme, which is developed from a code division multiple access scheme, is colored. In this part, radio frequencies in the 1880 MHz to 1920 MHz band (BAND WIDTH) and radio frequencies in the 2010 MHz to 2025 MHz band are allocated and used for transmission (TX) and reception (RX).

In addition, the WCDMA system of the third generation (3GPP) mobile communication system developed from the GSM (GSM) method is a colorless part, and assigns a radio frequency in the 1920 MHz to 1980 MHz band for use in transmission (TX), Radio frequencies in the 2110 MHz to 2170 MHz band are allocated and used for reception (RX).

As shown in FIG. 2, the radio frequency signals allocated for the third generation mobile communication system are adjacent to each other, and are generally distributed within the range of 300 MHz band. In particular, in the case of the transmission frequency, within the range of 145 MHz band. Make sure it is included.

As described above, when the radio frequency signals are adjacent to each other, the high frequency circuit components of the TD-SCDMA system and the WCDMA system may be manufactured and produced by almost the same or the same technology, so that both the TD-SCDMA and the WCDMA support high frequency circuits. Parts are being produced, and using the high-frequency components as described above to provide a dual mode (DUAL MODE) portable terminal 10 for operating the TD-SCDMA and WCDMA method in a single portable terminal.

In the dual-mode portable terminal as described above, in order to solve the problem caused by the multipath, a smart antenna of spatial diversity may be used. For example, in the case of a radio frequency of 2000 MHz, a quarter wavelength (λ) Since the length is 3.75 centimeters (cm), it is possible to apply a smart antenna that spaces each antenna space (SPACE) even in a small portable terminal.

Hereinafter, a smart antenna device of a portable terminal according to the prior art will be described with reference to FIG. 3.

A first antenna 51 for transmitting and receiving a radio signal of a TD-SCDMA system and a WCDMA system of a third generation (3GPP) mobile communication system; A first dual switch (52) connected to the first antenna (51) and distinguishing a TD-SCDMA signal and a WCDMA signal by corresponding control signals; A first time switch 53 connected to the first dual switch 52 and selecting a TD-SCDMA transmission and reception signal; A first time isolator (54) connected to said first time switch (53) for transmitting a TD-SCDMA transmission signal in one direction; A first high frequency transmitter (55) connected to said first time isolator (54) and outputting third generation TD-SCDMA and WCDMA transmission signals; A first code isolator (56) connected to the first high frequency transmitter (55) for transmitting a WCDMA transmission signal in one direction; A first high frequency receiver 57 connected to the first time switch 53 and inputting a third generation TD-SCDMA and WCDMA received signal; A signal (TX) input from the first high frequency transmitter 55 is output to the first dual switch 52 and is received by the first antenna 51 and input through the first dual switch 52. A first smart unit (50) comprising a duplexer (58) for outputting the first high frequency receiver (57),

A second antenna 61 for transmitting and receiving radio signals of a TD-SCDMA system and a WCDMA system of a third generation (3GPP) mobile communication system; A second dual switch (62) connected to the second antenna (61) and distinguishing a TD-SCDMA signal and a WCDMA signal by corresponding control signals; A second time switch 63 connected to the second dual switch 62 and selecting a TD-SCDMA transmission / reception signal; A second time isolator (64) connected to said second time switch (63) for transmitting a TD-SCDMA transmission signal in one direction; A second high frequency transmitter (65) connected to the second time isolator (64) and outputting a third generation TD-SCDMA and WCDMA transmission signal; A second code isolator (66) connected to the second high frequency transmitter (65) to transmit a WCDMA transmission signal in one direction; A second high frequency receiver 67 connected to the second time switch 63 and inputting a third generation TD-SCDMA and WCDMA received signal; A signal (TX) input from the second high frequency transmitter 65 is output to the second dual switch 62 and is received by the second antenna 61 and input through the second dual switch 62. A second smart unit 60 comprising a duplexer 58 for outputting the second high frequency receiver 67 to the second high frequency receiver unit 67;

It is connected to the first smart unit 50 and the second smart unit 60 and processes the dual mode (MODE) signal of the TD-SCDMA and WCDMA system to the baseband (BASE BAND) and at the same time the mobile terminal ( MS) It is the structure comprised by the process control part 70 which controls and monitors the whole function.

Hereinafter, a portable terminal smart antenna device according to the related art having the above configuration will be described in detail with reference to the accompanying drawings.

In order to reduce the effects of fading and the like, the third generation portable terminal uses a smart antenna system of spatial diversity, and the smart antenna system includes a plurality of antennas and a transceiver of the same number.

Referring to FIG. 3, a smart antenna is formed of a first antenna 51 and a second antenna 61 for spatial diversity, and each antenna includes a first smart unit 50 and a second smart unit 60. And transmit and receive 3G mobile communication signals, respectively.

The first smart unit 50 and the second smart unit 60 are connected to the processing control unit 70, and are monitored and controlled, and simultaneously process and transmit 3G signals to the baseband, and transmit to the baseband as described above. The signal to be processed and transmitted is a dual mode system including a TD-SCDMA system and a WCDMA system.

Since the first smart unit 50 and the second smart unit 60 have the same configuration and function, only the first smart unit 50 will be described in detail in order to avoid duplication.

The first dual switch 52 connected to the first antenna 51 path-connects the first antenna 51 to the first duplexer 58 by a corresponding control signal applied from the processing control unit 70. Or a path connection with the first time switch 53.

For example, when the processing controller 70 outputs and transmits a TD-SCDMA 3rd generation signal, the control signal is output together, and the output transmission signal is applied to the first high frequency transmitter 55 so as to be appropriate. Amplified to the level LEVEL and applied to the first time isolator 54 and transmitted in one direction, it is applied to the first time switch 53.

The first time switch 53 applies a TD-SCDMA signal input from the first time isolator 54 to the first dual switch 52, and the first dual switch 52 supplies a first antenna. It outputs through the radio frequency signal with the corresponding high frequency signal.

By the smart antenna system, the second antenna 61 receives the TD-SCDMA signal having the same content from the second smart unit 60 through the same process and wirelessly transmits a high frequency signal.

When receiving the TD-SCDMA signal, the first dual switch 52 connected to the first antenna 51 sets a path with the first time switch 53 according to the control signal, and the first The time switch 53 sets a path with the first high frequency receiver 57 according to the control signal.

The first high frequency receiver 57 processes the received and input third generation signal correspondingly and outputs it to the processing controller 70, and the second high frequency receiver 67 of the second smart unit 60 also receives the received signal. And outputs the input third generation signal to the processing control unit 70 through the corresponding processing.

The transmission of the WCDMA system signal is applied from the processing control unit 70 to the first high frequency transmission unit 57, and the first high frequency transmission unit 55 is connected to the first duplexer 58 through the first code isolator 56. The first duplexer 58 is applied to the first dual switch 52 by the filtering process, and applied to the first antenna 51 through the first dual switch 52, thereby wirelessly transmitting. In the second smart unit 60, the same signal is output in the same order and wirelessly transmits.

In the reception of the WCDMA scheme signal, a signal received through the first antenna 51 is applied to the first duplexer 58 by the first dual switch 52, and the first duplexer 58 is subjected to a corresponding filtering process. The first high frequency receiving unit 57 is applied to the first high frequency receiving unit 57, and the first high frequency receiving unit 57 outputs to the processing control unit 70 by the corresponding processing.

When the smart antenna system is applied to the 3rd generation dual mode portable terminal as described above, the functional configuration of the portable terminal is very complicated, the number of parts is increased, the circuit configuration is complicated, the size is large, and the manufacturing and life time takes much time. At the same time, the price is expensive.

The present invention is to provide a smart antenna device and method of a mobile terminal to reduce the size, reduce the production time and reduce the overall price, because the number of parts transmitting a signal in a dual-mode portable terminal applying a smart antenna system. That is the purpose.

In order to achieve the above object, the present invention, the third generation TD-SCDMA and WCDMA signals are generated in multiple times and separated by a circulator to wirelessly transmit to each of the smart antenna, the signal received by the smart antenna wireless three-stage switch By separating the TD-SCDMA and WCDMA signal, and characterized in that the combined signal and multimedia processing of the signal received by each smart antenna.

In addition, the present invention devised in order to achieve the above object, the third generation TD-SCDMA and WCDMA signals are separated by a circulator, respectively, and wirelessly transmitted by one antenna, the signal received by the smart antenna wirelessly TD-SCDMA And a WCDMA signal, and combine and multimedia process the signal received by the smart antenna.

In addition, the present invention has been made in order to achieve the above object, the transmission process when the mobile terminal transmits the third generation signal, the circulator process, the TD-SCDMA signal is time-switching processing and the WCDMA signal duplexing processing and; If the third generation signal is not transmitted in the above process, it is determined whether the signal is received. The TD-SCDMA signal is time-switched and the WCDMA signal is duplexed and received.

Hereinafter, a smart antenna device and a method of a portable terminal according to the present invention will be described with reference to the accompanying drawings.

4 is a functional block diagram of a portable terminal smart antenna device according to an embodiment of the present invention, Figure 5 is a functional configuration of a mobile terminal smart antenna device according to another embodiment of the present invention 6 is a flowchart illustrating a smart antenna method of a mobile terminal according to the present invention.

Referring to FIG. 4, the portable terminal smart antenna device according to an embodiment of the present invention generates three generations of TD-SCDMA and WCDMA signals, and separates them into a CIRCULATOR to wirelessly connect them to a smart antenna. The signal transmitted by the smart antenna is wirelessly separated into a TD-SCDMA and WCDMA signal by a three-stage switch, and the signal received by each smart antenna is combined and processed by multimedia. .

More specifically, the 3rd generation TD-SCDMA signal and the WCDMA signal are input and output to each path separated by the circulator, and are switched and wirelessly transmitted to one antenna, and the signal wirelessly received by one antenna is switched to TD. A first smart antenna 110 applied to the SCDMA and WCDMA paths to receive and process radio frequency signals of TD-SCDMA and WCDMA; The first three-stage switch 120 is connected to the first smart antenna 110, and separately set the transmission and reception path of the TD-SCDMA signal by time division switching (TD: TIME DIVISION) switching (SWITCHING) and to set the transmission path of the WCDMA signal (120) ); A first duplexer (DUPLEXER) 130 connected to the first three-stage switch 120 and separating a transmission path (TX PATH) and a reception path (RX PATH) of a WCDMA signal; A first circulator connected to the first three-stage switch 120 and the first duplexer 130 to apply a TD-SCDMA signal to the first three-stage switch 120 and to apply the WCDMA signal to the first duplexer 130. 140); A first high frequency receiver configured to input a third generation TD-SCDMA signal received by connecting to the first three-stage switch 120 and to input and receive a third generation WCDMA signal received by connecting to the first duplexer 130; 150); A first smart unit 100 comprising a first high frequency transmission unit 160 for outputting a third generation TD-SCDMA signal and a WCDMA signal inputted in connection with the first circulator 140;

Receives 3rd generation TD-SCDMA signal and WCDMA signal and outputs them in separate paths by circulator and transmits them by wireless transmission to one antenna, and the signals received by one antenna are switched by TD- A second smart antenna 210 which is applied to the SCDMA and WCDMA paths to receive and process the radio frequency signals of the TD-SCDMA and WCDMA; A second three-stage switch 220 connected to the second smart antenna 210 to separately set a transmission / reception path of a TD-SCDMA signal by time division switching and to set a transmission path of a WCDMA signal; A second duplexer 230 connected to the second three-stage switch 220 and separating a transmission path and a reception path of a WCDMA signal; A second circulator connected to the second three-stage switch 220 and the second duplexer 230 to apply a TD-SCDMA signal to the second three-stage switch 220 and to apply the WCDMA signal to the second duplexer 230. 240); A second high frequency receiver configured to input the third generation TD-SCDMA signal received by connecting to the second three-stage switch 220 and to input and detect the third generation WCDMA signal by connecting to the second duplexer 230; 250); A second smart unit 200 comprising a second high frequency transmitter 260 for outputting a third generation TD-SCDMA signal and a WCDMA signal connected to the second circulator 240;

It is connected to the first smart unit 100 and the second smart unit 200 and generates and outputs a third generation TD-SCDMA signal and a WCDMA signal, and combines the multiple input signals respectively and outputs a corresponding control signal. A combine block 310 for combining and analyzing the third generation TD-SCDMA signal and the WCDMA signal respectively received and input from the first smart unit 100 and the second smart unit 200; A processing control unit 300 including a transmission block 320 for generating and outputting the third generation TD-SCDMA signal and the WCDMA signal, respectively;

The multimedia control unit 400 is connected to the processing control unit 300 to process a multimedia signal.

Hereinafter, the portable terminal smart antenna device of the present invention as described above will be described in detail with reference to the accompanying drawings.

Since the third generation mobile terminal has a multi-function including a function of processing a TD-SCDMA signal and a WCDMA signal, and the third generation signal has a large amount of data to be transmitted, it is transmitted quickly. There are conditions in which signal quality (QOS: QUALITY OF SIGNAL) should be good, such as signal-to-noise ratio (SNR) and electromagnetic absorption ratio (SAR).

In order to satisfy the condition that the signal quality should be good as described above, there is a smart antenna based on spatial diversity, and in particular, according to the portable terminal standard of the 3rd generation (3GPP) mobile communication system, the option in the WCDMA method (OPTION) It is required to have a smart antenna, and the effect is known to be very large in the TD-SCDMA system.

However, when the smart antenna is applied in the dual mode portable terminal that accommodates both the 3D TD-SCDMA system and the WCDMA system, the number of components for applying the smart antenna function to each of the above methods is increased. The present invention seeks to solve problems such as size increase, weight increase, manufacturing cost and production time increase or increase, and the price of the portable terminal is high.

In the prior art, each of the corresponding isolators, i.e., two isolators are used to transmit the third generation TD-SCDMA signal and the WCDMA signal to be transmitted on each assigned path. In the invention, the use of a single circulator reduces the number of parts, reduces the area to be occupied, reduces the size, reduces manufacturing costs and production time, and lowers the price.

In the prior art, although a switch for selecting a TD-SCDMA method and a WCDMA method and a time division switch for selecting a transmission / reception path are selected for the TD-SCDMA method, the present invention uses one three-stage switch. The number of parts is reduced, the footprint is reduced, the size is reduced, the manufacturing cost and production time are reduced, and the price is reduced.

The first smart unit 100 and the second smart unit 200 have the same configuration and function, and each constitutes a smart antenna system, and will be described based on the first smart unit 100 to avoid overlapping descriptions. Let's do it.

As an example, a case in which a third generation (3GPP) signal is received through the first smart antenna 110, that is, a case in which a TD-SCDMA and a WCDMA signal are received will be described.

The first three-stage switch 120 is time-division switching (SWITCHING) so that the first smart antenna 110 and the first duplexer 130 is connected by the control signal of the processing control unit 300, and the first Time division switching so that the smart antenna 110 and the first high frequency receiver 150 is connected.

The first high frequency receiver 150 detects and processes the signal input from the first duplexer 130 by the WCDMA method, and the signal directly input from the first three-stage switch 120 is a TD-SCDMA method. Is detected and output to the process control unit 300.

In addition, not described above, the processing signal of the second smart unit 200 of the smart antenna system (SMART ANTENNA SYSTEM) by the space diversity (SPACE DIVERSITY) is also processed according to the same process and sequence as described above. 300).

The processing controller 300 applies a third generation TD-SCDMA signal and a WCDMA signal, respectively, input from the first smart unit 100, to the combine block 310, and from the second smart unit 200. The third generation TD-SCDMA signal and the WCDMA signal, respectively, are input to the combine block 310.

The processing control unit 300 controls the combine block 310 to combine the TD-SCDMA signal with the TD-SCDMA signal and the third generation signal received from each of the smart antennas 110 and 210, and the WCDMA signal is WCDMA. Combine the signals together.

The combine processing as described above is to improve the signal-to-noise ratio (SNR), the bit error occurrence rate (BER), the electromagnetic wave absorption rate (SAR), and the like, and is variously processed by the dedicated application process.

As described above, the third generation TD-SCDMA signal and the WCDMA signal processed by the combine block 310 of the processing control unit 300 are respectively applied to the multimedia unit 400 to process the corresponding multimedia. (MULTIMEDIA) Information can be checked.

As another example, the multimedia unit 400 outputs the multimedia information transmitted to the counterpart to the processing control unit 300, and the processing control unit 300 applies the transmission block 320 to perform corresponding processing.

The transmission block 320 generates a plurality of multimedia signals equally divided by the control of the processing control unit 300 and simultaneously processes the generated signals in a third generation TD-SCDMA method or a WCDMA method. The plurality of generated third generation signals are output to the first smart unit 100 and the second smart unit 200, respectively.

Since the first smart unit 100 and the second smart unit 200 have the same function by the same configuration and function, the first smart unit 100 will be mainly described in order to avoid redundant description.

The first smart unit 100 inputs a third generation TD-SCDMA signal and a WCDMA signal applied from the processing control unit 300 to the first high frequency transmitter 160, and the first high frequency transmitter 160 is at an appropriate level. After converting the signal to the signal, the output signal is output to the first circulator 140 through the respective paths of TD-SCDMA and WCDMA.

Since the first circulator 140 directly applies the TD-SCDMA signal input through the corresponding path to the first three-stage switch 120, the first smart switch is controlled by the time-division switching action of the first three-stage switch 120. It is applied to the antenna 110 to wireless output.

In addition, since the WCDMA signal input through the corresponding path to the first circulator 140 is applied to the first duplexer 130, the WCDMA signal is applied to the first three-stage switch 120 after the corresponding filter processing, and the first three-stage switch. Since it is applied to the first smart antenna 110 by the corresponding time division switching action of 120, the wireless output.

Although not described above, the transmission TD-SCDMA signal and the WCDMA signal applied to the second smart unit 200 are processed in the same order as the processes of the first smart unit 100, and the second smart unit. Since the wireless output through the antenna 210, the output of the smart antenna system by the spatial diversity.

Therefore, in applying a smart antenna system that separates a plurality of antennas at a corresponding wavelength interval in a dual mode portable terminal that accommodates both 3rd generation TD-SCDMA and WCDMA, the number of parts is reduced, the size is reduced, and the manufacturing time And reduce the cost of production, thereby reducing the price of the product.

Hereinafter, a smart terminal smart terminal device of the present invention according to another embodiment will be described with reference to FIG. 5.

The third generation TD-SCDMA and WCDMA signals, which are communicated using multimedia information, are separated by a circulator and wirelessly transmitted by one antenna, and the signals wirelessly received by the smart antenna are separated into TD-SCDMA and WCDMA signals. Combined and multimedia processing of the signal received by the antenna.

Referring to the configuration according to an embodiment of the present invention in more detail, the third generation TD-SCDMA signal and WCDMA signal is received and output to each path to the circulator (CIRCULATOR) and switched to wireless transmission to one antenna A third smart antenna 510 for wirelessly transmitting and receiving high-frequency signals of 3rd generation TD-SCDMA and WCDMA by switching and applying the radio signal received by one antenna to the TD-SCDMA and WCDMA paths; A third three-stage switch 520 connected to the third smart antenna 510 and configured to separately set a transmission / reception path of a TD-SCDMA signal by switching and to set a transmission path of a WCDMA signal; A third duplexer 530 connected to the third three-stage switch 520 and separating a transmission path and a reception path of a WCDMA signal; A third circulator connected to the third three-stage switch 520 and the third duplexer 530 to apply a TD-SCDMA signal to the third three-stage switch 520 and to apply the WCDMA signal to the third duplexer 530. 540); A third high frequency receiver 550 for inputting the received TD-SCDMA signal connected to the third three-stage switch 520 and for inputting the received WCDMA signal to the third duplexer 530 for detection processing; A transmitter / receiver 500 comprising a third high frequency transmitter 560 for outputting a TD-SCDMA signal and a WCDMA signal connected to the third circulator 540,

A fourth smart antenna 610 for duplexing the signal received by one antenna to separate the TD-SCDMA signal and the WCDMA signal and receiving the received signal, and wirelessly receiving high-frequency signals of 3rd generation TD-SCDMA and WCDMA; A fourth duplexer 620 connected to the fourth smart antenna 610 and separating the received signal into a TD-SCDMA and a WCDMA signal; A receiving unit 600 connected to the fourth duplexer 620 and including a fourth high frequency receiving unit 630 for detecting and processing the TD-SCDMA and WCDMA signals respectively applied thereto;

It is connected to the transceiver 500 and the receiver 600, and outputs the third generation TD-SCDMA signal and WCDMA signal, and combines the multiple input signals, respectively, and outputs the corresponding control signal, the transceiver 500 and the receiver A processing control unit 700 including a combine block 710 for combining and analyzing the TD-SCDMA signal and the WCDMA signal input from the 600;

The multimedia controller is connected to the processing control unit 700 to process multimedia signals.

In addition, the third high frequency receiver 550 detects and processes a signal applied from the third duplexer 530 in a WCDMA manner, and directly inputs a signal directly input from the third three-stage switch 520 in a TD-SCDMA scheme. It is a structure for detecting.

The third high frequency transmitter 560 is configured to process a third generation TD-SCDMA signal and a WCDMA signal and output the same to the third circulator via respective paths.

Hereinafter, by the configuration as described above, a mobile terminal smart device according to another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Another embodiment of the present invention. Since the transmission signal is output to one antenna and the reception signal uses a smart antenna based on spatial diversity, it is intended to reduce the number of components of the mobile terminal while improving the quality of the received signal.

Since the transmission and reception unit 500 functions by the same configuration and function as the first smart unit 100 and the second smart unit 200 described above, it will be avoided redundant description.

The receiver 600 applies the third generation TD-SCDMA signal and the WCDMA signal received by the fourth smart antenna 610 to the fourth duplexer 620, and the fourth duplexer 620 is allocated to the TD-SCDMA. It consists of a filter that passes only signals in a band and a filter that passes only signals in a band allocated to WCDMA.

The TD-SCDMA signal and the WCDMA signal, which are separated from the fourth duplexer 620 and output, are respectively applied to the fourth high frequency receiver 630, and the fourth high frequency receiver 630 detects and processes the processing controller 700. )

The process control unit 700 combines the TD-SCDMA and WCDMA signals input from the third high frequency receiver 550 and the TD-SCDMA and WCDMA signals input from the fourth high frequency receiver 630 and the corresponding application. Process to improve signal-to-noise ratio (SNR), bit error rate (BER), electromagnetic wave absorption rate (SAR), etc., and the processing controller 700 applies the processed signal to the multimedia unit 800 to confirm the user. Do it.

Since the signal to be transmitted from the multimedia unit 800 to the counterpart is applied to the processing control unit 700, the processing control unit outputs the control signal together with the control signal to the transceiver 500, as described above. It is output as a wireless signal through the three high frequency transmitter 560, the third circulator 540, the third duplexer 530, the third three-stage switch 520 and the third smart antenna 510.

According to another embodiment of the present invention, the third generation TD-SCDMA and WCDMA transmission signals are wirelessly output to one smart antenna 510, and the reception signals are transmitted and received using the transceiver 500 and the receiver 600. Receive processing with a smart antenna system using spatial diversity.

This reduces the number of components, reduces production time and manufacturing costs, reduces size, and lowers costs while receiving third-generation TD-SCDMA and WCDMA dual-mode signals from the smart antenna system.

Hereinafter, a smart antenna method of a mobile terminal according to the present invention will be described with reference to FIG.

When the portable terminal transmits (TX) the 3rd generation TD-SCDMA and WCDMA signals, it transmits the TD-SCDMA signal by time division switching or time switching processing and transmits the WCDMA signal by duplexing processing. Determining whether the terminal transmits 3G TD-SCDMA and WCDMA signals (S100); A circulator process of outputting a transmission signal in a corresponding direction by a CIRCULATOR when the transmission is determined in the step S100; Determining whether the signal processed in step S110 is a TD-SCDMA signal or a WCDMA signal (S120); If it is determined in step S120 that the signal is a TD-SCDMA signal, time division switching or time switching processing (S130); If it is determined in step S120 that the signal is WCDMA, performing a duplexing process by the corresponding band filter (S140); A transmission process comprising wirelessly transmitting the processed signal through an antenna (S150);

If the third generation signal is not transmitted in the transmission process, it is determined whether to receive the signal, and the TD-SCDMA signal is time-switched and the WCDMA signal is received by duplexing. The portable terminal receives the third-generation TD-SCDMA and WCDMA signals. Determining whether to receive (S160); Determining whether the received signal is a TD-SCDMA signal or a WCDMA signal when it is determined and received in step S160 (S170); If it is determined that the signal is a TD-SCDMA signal, a time switching process (180); Performing duplexing when determining that the WCDMA signal is determined at step S170; It consists of a receiving process consisting of the process of detecting the processed signal through a high-frequency receiver to separate the received signal.

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

The portable terminal communicating with the third generation TD-SCDMA signal and the WCDMA signal for multimedia communication determines whether to transmit using the third generation signal (S100), and if not transmitting in the determination (S100), the reception process ( The process proceeds to S160, in which case the circulator process is performed in the case of transmitting in the determination (S100).

In step S110, whether the signal processed by the circulator is a TD-SCDMA signal or a WCDMA signal is determined (S120). In the case where the signal processed by the circulator is a TD-SCDMA signal, the time switching process is performed. In operation S130, the duplexing process is performed when the signal processed by the determination is a WCDMA signal.

The signal processed by the above processes (S130, S140) is transmitted in a spatial diversity scheme by the smart antenna (S150).

If it is determined that the portable terminal receives the third generation signal (S160), it is determined whether the received signal is a TD-SCDMA signal or a WCDMA signal (S170), and when the determination (S170) is a TD-SCDMA signal, The time switching process is performed (S180), and the duplexing process is performed in the case of the determination of the WCDMA signal (S170).

In the above process, the respective processed signals are detected by the reception unit (S200), and then applied and processed to improve the signal-to-noise ratio (SNR), bit error rate (BER), and electromagnetic wave absorption rate (SAR). The user can confirm the signal processed by the multimedia processing.

Therefore, while using the smart antenna (SMART ANT.) In the dual mode portable terminal that accepts both the 3rd generation TD-SCDMA signal and the WCDMA signal, the number of parts is reduced by the circulator (CIRCULATOR) processing. Improve production efficiently, reduce size and reduce price

The present invention having the above-described configuration has an industrial use effect of applying a smart antenna system to a dual mode portable terminal that accommodates both 3rd generation TD-SCDMA and WCDMA signals, while reducing the size and cost.

In addition, there is a convenient effect of improving the reliability by reducing the number of parts of the dual-mode portable terminal applying the smart antenna, reducing the size, reducing the manufacturing time and production cost, while reducing the cost of failure. .

1 is a functional configuration and use environment diagram of a general mobile communication system,

2 is a radio frequency allocation state diagram of a third generation mobile communication terminal;

3 is a configuration diagram of a smart antenna operating function of a third generation portable terminal of the prior art;

4 is a functional diagram of a portable terminal smart antenna device according to an embodiment of the present invention;

5 is a functional diagram of a portable terminal smart antenna device according to another embodiment of the present invention;

6 is a flowchart illustrating a smart antenna method of a mobile terminal according to the present invention.

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

100: first smart unit 110: first smart antenna

120: first three-stage switch 130: the first duplexer

140: first circulator 150: first high frequency receiver

160: first high frequency transmission unit 200: second smart unit

300,700: processing control part 310,710: combine block

320: transmission block 400, 800: multimedia unit

500: transceiver 600: receiver

610: fourth smart antenna 620: fourth duplexer

630: fourth high frequency receiving unit

Claims (19)

Multiple generation of 3rd generation TD-SCDMA and WCDMA signals, separated by a circulator, and wirelessly transmitted by smart antennas, and the signals wirelessly received by smart antennas are separated into TD-SCDMA and WCDMA signals by a three-stage switch. Smart antenna device of a mobile terminal, characterized in that the configuration consisting of the combine processing and multimedia processing of the signal received by the smart antenna. According to claim 1, Receives 3rd generation TD-SCDMA signal and WCDMA signal, outputs them in separate paths by the circulator, switches them, transmits them wirelessly to one antenna, and transmits signals received by one antenna to the TD-SCDMA and WCDMA paths. A first smart unit for receiving and processing by authorization Receives 3rd generation TD-SCDMA signal and WCDMA signal, outputs them in separate paths by the circulator, switches them, transmits them wirelessly to one antenna, and transmits signals received by one antenna to the TD-SCDMA and WCDMA paths. A second smart unit for receiving and processing by authorization A processing control unit connected to the first smart unit and the second smart unit and generating and outputting a third generation TD-SCDMA signal and a WCDMA signal, combining the multiple input signals, and outputting a corresponding control signal; Smart antenna device of the portable terminal, characterized in that the configuration consisting of a multimedia unit for processing the multimedia signal is connected to the processing control unit. The method of claim 2, wherein the first smart unit, A first smart antenna for wirelessly transmitting and receiving high frequency signals of third generation TD-SCDMA and WCDMA; A first three-stage switch connected to the first smart antenna and configured to separately set a transmission / reception path of a TD-SCDMA signal by switching and to set a transmission path of a WCDMA signal; A first duplexer connected to the first three-stage switch and separating a transmission path and a reception path of a WCDMA signal; A first circulator connected to the first three-stage switch and the first duplexer to apply a TD-SCDMA signal to the first three-stage switch and to apply the WCDMA signal to the first duplexer; A first high frequency receiver for inputting the received TD-SCDMA signal connected to the first three-stage switch and inputting the received WCDMA signal to the first duplexer and detecting the received signal; And a first high frequency transmission unit for outputting a TD-SCDMA signal and a WCDMA signal inputted in connection with the first circulator. The method of claim 3, wherein the first high frequency receiver, And detecting a signal applied from the first duplexer using a WCDMA method and detecting a signal directly input from the first three-stage switch using a TD-SCDMA method. The method of claim 3, wherein the first high frequency transmission unit, And a third generation TD-SCDMA signal and a WCDMA signal, and output to the first circulator in respective paths. The method of claim 2, wherein the second smart unit, A second smart antenna for wirelessly transmitting and receiving high frequency signals of 3rd generation TD-SCDMA and WCDMA; A second three-stage switch connected to the second smart antenna and configured to separately set a transmission / reception path of a TD-SCDMA signal by switching and to set a transmission path of a WCDMA signal; A second duplexer connected to the second three-stage switch and separating a transmission path and a reception path of a WCDMA signal; A second circulator connected to the second three-stage switch and a second duplexer to apply a TD-SCDMA signal to a second three-stage switch and to apply a WCDMA signal to a second duplexer; A second high frequency receiver for inputting the received TD-SCDMA signal connected to the second three-stage switch and inputting the received WCDMA signal to the second duplexer and detecting the received signal; And a second high frequency transmitter for outputting a TD-SCDMA signal and a WCDMA signal inputted by connecting to the second circulator. The method of claim 6, wherein the second high frequency receiving unit, And detecting a signal applied from the second duplexer using a WCDMA method, and detecting and processing a signal directly input from the second three-stage switch using a TD-SCDMA method. The method of claim 6, wherein the second high frequency transmission unit, And a third generation TD-SCDMA signal and a WCDMA signal, and output to the second circulator in respective paths. The method of claim 2, wherein the processing control unit, A combine block for combining and analyzing the TD-SCDMA signal and the WCDMA signal respectively received and input from the first smart unit and the second smart unit; And a transmission block for generating and outputting the multiple TD-SCDMA signals and the WCDMA signals. The third generation TD-SCDMA and WCDMA signals are separated by a circulator and wirelessly transmitted by one antenna, and the signals wirelessly received by the smart antenna are separated by TD-SCDMA and WCDMA signals, and the signals received by the smart antenna are combined. Smart antenna device of a mobile terminal, characterized in that the configuration consisting of processing and multimedia processing. The method of claim 10, Receives 3rd generation TD-SCDMA signal and WCDMA signal, outputs to each path with circulator, switches, transmits wirelessly to one antenna, and transmits signal received wirelessly to one antenna to TD-SCDMA and WCDMA path A transceiver for receiving and processing A receiving unit for duplexing a signal received by one antenna into a TD-SCDMA signal and a WCDMA signal, and receiving each signal; A processing control unit connected to the transmission and reception unit and outputting a third generation TD-SCDMA signal and a WCDMA signal, combining the multiple input signals and outputting a corresponding control signal; Smart antenna device of the portable terminal, characterized in that the configuration consisting of a multimedia unit for processing the multimedia signal is connected to the processing control unit. The method of claim 11, wherein the transceiver unit, A third smart antenna for wirelessly transmitting and receiving high frequency signals of third generation TD-SCDMA and WCDMA; A third three-stage switch connected to the third smart antenna and configured to separately set a transmission / reception path of a TD-SCDMA signal by switching and to set a transmission path of a WCDMA signal; A third duplexer connected to the third three-stage switch and separating a transmission path and a reception path of a WCDMA signal; A third circulator connected to the third three-stage switch and a third duplexer to apply a TD-SCDMA signal to a third three-stage switch and to apply a WCDMA signal to a third duplexer; A third high frequency receiver for inputting the received TD-SCDMA signal connected to the third three-stage switch and inputting the received WCDMA signal to the third duplexer, respectively, for detecting and processing; And a third high frequency transmitter for outputting a TD-SCDMA signal and a WCDMA signal inputted by connecting to the third circulator. The method of claim 12, wherein the third high frequency receiver, And a process for detecting a signal applied from the third duplexer using a WCDMA method, and detecting and processing a signal directly input from the third three-stage switch using a TD-SCDMA method. The method of claim 12, wherein the third high frequency transmission unit, And a third generation TD-SCDMA signal and a WCDMA signal, and output to the third circulator in respective paths. The method of claim 11, wherein the receiving unit, Fourth smart antenna which wirelessly receives high frequency signal of 3rd generation TD-SCDMA and WCDMA, A fourth duplexer connected to the fourth smart antenna and separating a received signal into a TD-SCDMA and a WCDMA signal; And a fourth high frequency receiver configured to detect and process TD-SCDMA and WCDMA signals respectively applied to the fourth duplexer. The method of claim 11, wherein the processing control unit, And a combine block for combining and analyzing the TD-SCDMA signal and the WCDMA signal respectively received and input from the transceiver and the receiver, respectively. In the case where the portable terminal transmits the third generation signal, a transmission process in which the TD-SCDMA signal is time-switched and the WCDMA signal is duplexed is transmitted by circulating; In the process, if the third generation signal is not transmitted, it is determined whether it is received, and the TD-SCDMA signal is time-switched and WCDMA signals are duplexed and received. The method of claim 17, wherein the transmission process, Determining whether the portable terminal transmits a third generation signal; Circulating the transmission signal by the circulator in case of determining and transmitting in the above process; Determining whether the signal processed in the process is a TD-SCDMA signal or a WCDMA signal; Determining the TD-SCDMA signal in the determination process and performing time switching processing; Determining the WCDMA signal in the determination process, performing a duplexing process; Smart antenna method of the mobile terminal, characterized in that the process of wireless output through the antenna and transmitting the processed signal. The method of claim 17, wherein the receiving process, Determining whether the portable terminal receives a third generation signal; Judging whether the received signal is a TD-SCDMA signal or a WCDMA signal in the case of determining and receiving in the above process; Determining the TD-SCDMA signal in the determination process and performing time switching processing; Determining the WCDMA signal in the determination process, performing a duplexing process; Smart antenna method of the portable terminal, characterized in that the process of detecting the processed signal through a high-frequency receiver to separate the received signal.