KR20090004091A - Multiband processing apparatus - Google Patents

Abstract

A multiband processing apparatus is provided to transmit/receive a plurality of multiband signals at the same time by comprising separate processing modules for each antenna. The firs antenna(110) transmits and receives the first band signal, and a test port(111) is positioned between the first antenna and an antenna switch module(130) to receive various band signals from a connected test device. The second antenna(120) transmits and receives the second band signal, and the antenna switch module is connected to the first antenna to separate signals through the first antenna and test port. The first signal process module(140) receives the first band signal having the first band domain, and coverts the received first band signal in a signal which an multiband processing unit(100) can process. A switch(150) establishes a path for processing the received band signal according to the operational mode under the control of a controller(170) which controls the overall operation of the multiband processing unit.

Description

Multiband Processing Apparatus

1 is a block diagram showing the configuration of a multi-band processing apparatus according to the prior art.

2 is a block diagram showing the configuration of a multi-band processing apparatus according to an embodiment of the present invention.

3 is a block diagram showing in detail the configuration of the switch of FIG.

4 is a block diagram showing the configuration of a multi-band processing apparatus according to another embodiment of the present invention.

The present invention relates to a device for transmitting and receiving a multi-band signal, and more particularly, to a multi-band processing device for increasing the efficiency of the antenna by having a separate antenna for each of a plurality of network systems.

Currently, the European mobile communication standard is a global system for mobile communication (GSM) based on time division multiple access (TDMA). The GSM method has a method using a 900MHz frequency band and a method using a 1.8GHz frequency band. The 1.8 GHz band is used to expand radio frequency resources. A digital cordless system (hereinafter referred to as DCS) may be used, and a personal communication system (PCS) using the 1.9 GHz band is also included in the category of GSM.

Meanwhile, the third generation mobile communication system providing multimedia data in GSM is a universal mobile communication system (UMTS) based on a wideband code division multiple access (WCDMA) scheme. UMTS transmits data at high speed of 2Mbps using 2.1GHz frequency band and enables large capacity multimedia data service.

As such, voice calls and simple data transmission / reception use a GSM method including DCS, and a WCDMA method is used for multimedia communication, and thus, a study on a dual mode terminal capable of handling both GSM and WCDMA continues.

Accordingly, the prior art shown in FIG. 1 proposes a multiband processing apparatus 10 having an antenna supporting multiband. The multiband processing apparatus 10 includes an antenna 11, a test port 12, an antenna switch module 13, a first signal processing module 14, a second signal processing module 15, and a controller 16. do. Here, the antenna 11 receives WCDMA and GSM band signals. However, the antenna 11 supporting such a multi-band is inevitably deteriorated as the wider the band is received. For example, receiving both a WCDMA signal and a GSM signal simultaneously reduces antenna efficiency.

In order to overcome this problem, Korean Laid-Open Patent Publication No. 10-2006-0032365 ("Mobile communication terminal having dual mode antenna routing apparatus") according to the prior art has a separate antenna for each network to receive a multiband. An antenna routing device is disclosed. This increases the efficiency of the antenna by receiving each band signal for each network. However, the antenna routing device is equipped with a single poll double throw (SPDT) switch, which is inconvenient to receive and process GSM and WCDMA signals at the same time. For example, a mobile communication terminal having a multi-band processing apparatus receives a WCDMA signal and releases a call connection when the WCDMA signal is weakened during a call. When the user tries to connect again, the user receives a GSM signal to make a call. Since two signals cannot be received and processed simultaneously as described above, when the signal is unstable, the reception of one signal must be terminated and the other signal must be received and processed.

An object of the present invention is to increase the efficiency of the antenna by having a separate antenna for each network type.

Another object of the present invention is to transmit and receive a plurality of multi-band signals at the same time.

In order to achieve these objects, the multi-band processing apparatus according to the embodiment of the present invention, the first antenna unit for transmitting and receiving a first band signal, the second antenna unit for transmitting and receiving a second band signal, the first band signal processing A first signal processing module to perform the second signal processing module to process the second band signal, an antenna switch module connected to the first antenna unit and separating the received signal, and an operation mode according to an input control signal If the control mode and the operation mode is set to the test mode under the control of the control unit and the control mode for setting to one of the test mode and the real mode, and the second signal processing module and the antenna switch module is set to the real mode, It consists of a switching unit for connecting the two signal processing module and the second antenna unit.

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

In describing the embodiments, descriptions of technical contents which are well known in the technical field to which the present invention belongs and are not directly related to the present invention will be omitted. This is to more clearly communicate without obscure the subject matter of the present invention by omitting unnecessary description.

2 is a block diagram illustrating a configuration of a multiband processing apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the multiband processing apparatus 100 includes a first antenna unit 110, a test port 111, a second antenna unit 120, an antenna switch module (ASM) 130, The first signal processing module 140, the switch 150, the second signal processing module 160, and the controller 170 are included.

The first antenna unit 110 transmits and receives a first band signal. In particular, the first antenna unit 110 transmits and receives a GSM band signal. For example, the first antenna unit 110 is a tri-mode antenna that receives all signals in a 900 MHz frequency band, a 1.8 GHz frequency band, and a 1.9 GHz frequency band.

The test port 111 is located between the first antenna unit 110 and the antenna switch module 130. In particular, the test port 111 is connected to a test device (not shown) to receive various band signals from the test device. For example, the band signal is any one of a GSM band signal and a WCDMA band signal.

The second antenna unit 120 transmits and receives a second band signal. For example, the second antenna unit 120 transmits and receives a WCDMA band signal. Here, the WCDMA band signal is a signal of the 2.1 GHz frequency band. By providing the first and second antenna units 110 and 120 in this way, the efficiency of the antenna can be increased by transmitting and receiving signals for each network.

The antenna switch module 130 is a module connected to the first antenna unit 110 to separate a signal received through the first antenna unit 110 and the test port 111. In particular, when the antenna switch module 130 receives the band signal through the test port 111, the antenna switch module 130 controls the diplexer included in the antenna switch module 130 to separate the band signal. Subsequently, the antenna switch module 130 transmits the separated band signal to the first signal processing module 140 and the second signal processing module 160, respectively.

The first signal processing module 140 receives the first band signal having the first band region and converts the first band signal into a form that can be processed by the multiband processing apparatus 100. Here, the first band signal is a signal included in the GSM band region. Specifically, the GSM band region is preferably three band regions of GSM / DCS / PCS having a band of 900 MHz, 1.8 GHz, and 1.9 GHz.

The switch 150 sets a path for processing the reception band signal according to the operation mode under the control of the controller 170. In particular, the switch 150 is a single poll double throw (SPDT) switch. The switch 150 is composed of one 'throw' and two 'poll', as shown in FIG. At this time, 'throw' is connected to the second signal processing module 160, two 'poll' is attached to the second antenna 120 and the antenna switch module 130, respectively. As shown in FIG. 3, the switch 150 contacts 'poll' connected to the second antenna unit 120 or 'poll' connected to the antenna switch module 130 under the control of the controller 170. Let's do it.

Specifically, when the operation mode is set to the test mode under the control of the controller 170, the switch 150 connects the second signal processing module 160 and the antenna switch module 130. Meanwhile, when the operation mode is set to the real mode, the switch 150 connects the second antenna unit 120 and the second signal processing module 160 under the control of the controller 170.

The controller 170 controls the overall operation of the multiband processor 100. In particular, the controller 170 sets the operation mode to either the test mode or the real mode according to the input of the external signal. Here, the external signal is a signal input to a port (not shown) previously allocated to control the switch 150. At this time, the port is controlled by the controller 170. In particular, if the signal input to the port is 'high', the test mode is used in the mass production process, and if the signal input to the port is 'low', the general real mode. At this time, during the mass production process, 'high' is input to the port and is set to the test mode, and 'low' is input to the port before shipment and set to the real mode.

The controller 170 controls the switch 150 according to the set operation mode. For example, when the operation mode is set to the test mode, the controller 170 controls the switch 150 to connect the second signal processing module 160 and the antenna switch module 130. The control unit 170 transmits the first band signal received from the test port 1110 to the first signal processing module 140 under the control of the switch 150, and transmits the second band signal to the second signal processing module 160. To send).

Meanwhile, when the operation mode is set to the real mode, the controller 170 controls the switch 150 to connect the second antenna unit 120 and the second signal processing module 160. In addition, the controller 170 controls the switch 150 to transmit the first band signal received from the first antenna unit 110 to the first signal processing module 140 and received from the second antenna unit 120. The second band signal is transmitted to the second signal processing module 160.

The controller 170 simultaneously receives the first band signal and the second band signal from the first antenna unit 110 and the second antenna unit 120, respectively, so that the first signal processing module 140 and the second signal processing module ( 160). In addition, the control unit 170 measures the strength of the first and second band signals received from the first antenna unit 110 and the second antenna unit 120 to maintain a call connection with the band signal of the counting side. For example, if the WCDMA band signal is weakened during the call connection with the WCDMA band signal, the controller 170 maintains the call connection state with the GSM band signal. At this time, the band signal of weak strength is also received at the same time. Therefore, by simultaneously transmitting and receiving GSM and WCDMA band signals at the same time, it is possible to prevent the termination of the call as the network is changed in the middle of the call.

4 is a block diagram illustrating a configuration of a multiband processing apparatus according to another embodiment of the present invention.

2 and 4, the multiband processor 200 may include a first antenna unit 210, a test port 211, a second antenna unit 220, an antenna switch module 230, and a first signal. It includes a processing module 240, a switch 250, a second signal processing module 260, and a controller 270. In particular, FIG. 4 shows an example of a case where the positions of the test port 211 and the switch 250 illustrated in FIG. 2 are changed.

Thus, each of the above devices is similar in function to the devices illustrated in FIG. 2. That is, the first antenna unit 210 is the first antenna unit 110 of FIG. 2, the test port 211 is the test port 111 of FIG. 2, and the second antenna unit 220 is the second antenna of FIG. 2. The antenna unit 120, the antenna switch module 230, the antenna switch module 130 of FIG. 2, and the first signal processing module 240, the first signal processing module 140 of FIG. 2, the switch 250. 2, the switch 150 and the second signal processing module 260 of FIG. 2 are similar in function to the second signal processing module 160 of FIG. 2 and the control unit 270 of FIG. 2. However, when the operation mode is the test mode, the controller 270 controls the switch 250 to connect the antenna switch module 230 and the first signal processing module 240. Meanwhile, if the operation mode is the real mode, the controller 270 controls the switch 250 to connect the first antenna 210 and the first signal processing module 240.

In the present invention has been described with an example having two antennas, it is of course possible to have two or more antennas.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention attached to the claims. .

According to the present invention, since a separate antenna is provided for each network, the efficiency of the antenna can be increased. In addition, a separate processing module is provided for each antenna to simultaneously transmit and receive a plurality of multiband signals.

Claims (6)

In the multi-band processing apparatus, A first antenna unit for transmitting and receiving a first band signal; A second antenna unit configured to transmit and receive a second band signal; A first signal processing module for processing the first band signal; A second signal processing module for processing the second band signal; An antenna switch module connected to the first antenna unit and separating the received signal; A controller configured to set an operation mode to one of a test mode and a real mode according to a control signal input from an external device; And When the operation mode is set to the test mode under the control of the control unit, and if the second signal processing module and the antenna switch module is set to the real mode, and comprises a switching unit for connecting the second signal processing module and the second antenna unit Multi-band processing apparatus, characterized in that. According to claim 1, And a test port positioned between the first antenna and the first signal processing module. The method of claim 2, wherein the test port And receiving one of the first band signal and the second band signal. The method of claim 1, wherein the switching unit And a throw of the SPDT switch is connected to a second signal processing module, and two throws are attached to the second antenna unit and the antenna switch module, respectively. The method of claim 4, wherein the switching unit And in the test mode, contacting the poll with a throw of an antenna switch module under control of a controller, and in real mode, contacting the poll with a throw of a second antenna unit. The method of claim 5, wherein the control unit And in the real mode, controlling the first and second antennas to simultaneously transmit and receive first and second band signals.

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