CN202889657U - Dual-mode, dual-standby, and dual-pass mobile communication device - Google Patents

Abstract

A dual-mode dual-standby dual-pass mobile communication device comprises a first communication module and a second communication module, wherein the first communication module comprises a first radio frequency transceiver, a first transmission path, a first receiving path and a first antenna switching module. The first transmission path comprises a first power amplifier, a first switch, a first bypass path and a first filtering path. The first power amplifier is coupled to the first radio frequency transceiver. The first switch is coupled to the first power amplifier. The first switch selectively transmits a transmission signal from the first power amplifier to one of the first bypass path and the first filtering path according to a first control signal, so as to reduce interference of the transmission signal of the first communication module on a reception signal of the second communication module.

Description

Dual-mode, dual-standby, and dual-pass mobile communication device

technical field

The utility model relates to a mobile communication device, in particular to a mobile communication device that can support dual-mode, dual-standby, and dual-communication, and can effectively reduce the mutual interference of radio frequency signals generated when operating in dual-communication.

Background technique

With the development of communication technology, more and more communication specifications have been regulated, so mobile communication devices that can support more than one Radio Access Technology (abbreviated as RAT) have also emerged accordingly. A mobile communication device with a single module (that is, with two communication modules) is the mainstream in this field.

Traditional mobile communication devices only support dual-mode, dual-standby, and single-communication. Dual-standby means that two communication modules can be on standby at the same time, so that messages sent from the network will not be missed. The single communication means that only one communication module can establish a call or data transmission connection with a remote device such as a base station at the same time, and at this time the other communication module enters a no-service state where it cannot send and receive messages.

In order to further improve the communication performance of the mobile communication device, a dual-mode mobile communication device capable of supporting dual-standby and dual-communication has been developed. However, when the two communication modules of the dual-mode, dual-standby, and dual-pass mobile communication device establish a call or data transmission connection with the remote device at the same time, since the antennas of the two modules are arranged very close to each other, the radio frequency signals of the two communication modules have May interfere with each other, this phenomenon is particularly obvious when the two communication modules use adjacent or overlapping communication frequency bands.

Therefore, solving the mutual interference between radio frequency signals is an important issue that must be faced in the development of mobile communication devices.

Contents of the invention

According to an embodiment of the present invention, a dual-mode, dual-standby, and dual-communication mobile communication device includes a first communication module capable of supporting communication of a first wireless access technology and a second communication module of a second wireless access technology Two communication modules. The first communication module includes a first radio frequency transceiver, a first transmission path, a first reception path and a first antenna switching module. The first transmission path is coupled to the first radio frequency transceiver for transmitting a first transmission signal belonging to a first RAT. The first receive path is coupled to the first radio frequency transceiver for receiving a second receive signal belonging to the first RAT. The first antenna switching module is coupled to the first transmission path, the first reception path and at least one first antenna. The first transmission path includes a first power amplifier, a first switch, a first bypass path and a first filtering path. The first power amplifier is coupled to the first radio frequency transceiver. The first switch is coupled to the first power amplifier and receives a first control signal. The first bypass path is coupled between the first switch and the first antenna switching module. The first filtering path is coupled between the first switch and the first antenna switching module, and includes a first filter. The first switch selectively transmits the first transmission signal from the first power amplifier to one of the first bypass path and the first filter path according to the first control signal, so as to reduce the impact of the first transmission signal of the first communication module on the first transmission signal. Interference generated by the received signal of the second communication module.

The utility model has the beneficial effects of providing a dual-mode, dual-standby, and dual-communication mobile communication device, which includes a first communication module that can support communication of a first wireless access technology and a second communication module of a second wireless access technology. The second communication module can greatly reduce the interference caused by the transmission signal of the TD-SCDMA system to the reception of the radio frequency signal of the DCS frequency band of the GSM system of the other communication module 120, and improve the transmission performance.

Description of drawings

1A and 1B are block diagrams showing a dual-mode, dual-standby, and dual-communication mobile communication device according to a first embodiment of the present invention.

2A and 2B are block diagrams showing a dual-mode, dual-standby, and dual-communication mobile communication device according to a second embodiment of the present invention.

[Description of main component labels]

100, 200～mobile communication device; 110, 120, 210, 220～communication module;

111, 121～processor; 112, 122～radio frequency transceiver;

113, 123～antenna switching module; 114, 124～subscriber identity module card;

115, 116, 125～transmission path;

117, 118, 119, 126, 127, 128～receiving path;

151, 161, 251～power amplifier;

152, 171, 191, 252, 271, 352, 371, 452, 471552, 652 ~ switch;

153, 154, 172, 173, 181, 192, 193, 253, 261, 272, 273, 281～filter;

155, 254, 255～bypass path; 300～interface;

ANT1, ANT2～antenna;

Ctrl_1, Ctrl_2, Ctrl_3, Ctrl_4, Ctrl_5, DCS_RX, GSM_HB_RX, GSM_LB_RX, GSM_HB_TX, GSM_LB_TX, PCS_RX, TD-SCDMA_RX, TD-SCDMA_TX ~ signal.

Detailed ways

In order to make the manufacture, operation method, objectives and advantages of the present utility model more obvious and easy to understand, several preferred embodiments are given below, together with the accompanying drawings, as follows:

Example:

1A and 1B are block diagrams showing a dual-mode, dual-standby, and dual-communication mobile communication device according to a first embodiment of the present invention. The mobile communication device 100 can be a mobile phone, a smart phone or a tablet computer with telephone and Internet functions, and it includes two communication modules 110 and 120, wherein the communication modules 110 and 120 can support more than one wireless access technology (Radio Access Technology, abbreviated as RAT) communication. For example, in this embodiment, the communication module 110 can support Time Division-Synchronous Code Division Multiple Access (Time Division-Synchronous Code Division Multiple Access, abbreviated as TD-SCDMA) and Global System for Mobile Communications (Global System for Mobile Communications, abbreviated as GSM ) communication of two wireless access technologies, and the communication module 120 can at least support the communication of GSM wireless access technology.

The communication module 110 may include at least a processor 111 , a radio frequency transceiver 112 , and an antenna switching module 113 , wherein the processor 111 may be coupled to a Subscriber Identity Module (SIM) card 114 . The communication module 110 may further include a plurality of transmission and reception paths for respectively transmitting or receiving radio frequency signals of different frequency bands, including a transmission path 115 for transmitting the transmission signal TD-SCDMA_TX belonging to the TD-SCDMA system, and a transmission path 115 for transmitting the transmission signal belonging to the TD-SCDMA system. The transmission path 116 of the transmission signals GSM_HB_TX and GSM_LB_TX of the GSM system, the reception path 117 for receiving the reception signal GSM_HB_RX belonging to the high frequency band of the GSM system, the reception path 118 for receiving the reception signal GSM_LB_RX of the low frequency band of the GSM system, And a receiving path 119 for receiving a receiving signal TD-SCDMA_RX belonging to the TD-SCDMA system. Among them, the low frequency band of the GSM system may include GSM-850, GSM-900 and enhanced GSM (ie, EGSM)-900 frequency band, etc., while the high frequency band of the GSM system may include GSM-1800 (also known as digital cellular service ( Digital Cellular Service, abbreviated as DCS)) and GSM-1900 (also known as Personal Communications Service (Personal Communications Service, abbreviated as PCS)) frequency bands, etc. In addition, the radio frequency signal includes a transmission signal and a reception signal.

On the other hand, the communication module 120 may include at least a processor 121 , a radio frequency transceiver 122 , and an antenna switching module 123 , wherein the processor 121 may be coupled to a Subscriber Identity Module (SIM) card 124 . In this embodiment, the SIM card 124 of the communication module 120 and the SIM card 114 of the communication module 110 may be SIM cards issued by two different telecom operators. But not limited to this. The communication module 120 may further include a plurality of transmitting and receiving paths for respectively transmitting or receiving radio frequency signals of different frequency bands, including the transmitting path 125 for transmitting the transmission signals GSM_HB_TX and GSM_LB_TX belonging to the GSM system, and for receiving the transmission signals belonging to the GSM system The reception path 126 of the received signal GSM_LB_RX of the low frequency band, the reception path 127 of the received signal DCS_RX of the high frequency band belonging to the GSM system, for example, the DCS frequency band, and the reception path 127 of the high frequency band belonging to the GSM system, such as , the receiving path 128 of the received signal PCS_RX of the PCS frequency band.

Since multiple operating frequency bands of the TD-SCDMA system are adjacent to the operating frequency bands of GSM, for example, the 34th frequency band (Band34: 2010-2025MHz) and the 39th frequency band (Band39: 1880-1920MHz) of the TD-SCDMA system are closely related to the GSM-1800 ( That is, the frequency bands of DCS) are very close. Therefore, when the mobile communication device 100 is designed to support the simultaneous operation of the two systems, the possible mutual interference between the TD-SCDMA system and the GSM system must be resolved.

According to the first embodiment of the present invention, in the communication module 110 , the transmission path 115 may include a power amplifier 151 , a switch 152 , filters 153 and 154 and a bypass path 155 . The power amplifier 151 is used to amplify the transmission signal TD-SCDMA_TX of the TD-SCDMA system. The switch 152 can selectively transmit the amplified transmission signal TD-SCDMA_TX from the power amplifier 151 to the bypass path 155 or one of the two filtering paths including the filter 153 or 154 according to the control signal Ctrl_1 (the following paragraphs will refer to the switch 152 Switching is described in more detail). Filters 153 and 154 can be designed as band-pass filters for filtering out signals outside a specific frequency band of TD-SCDMA. For example, the filters 153 and 154 can respectively aim at the 34th frequency band (Band34: 2010-2025MHz) and the 39th frequency band (Band34: 2010-2025MHz) that may interfere with the operating frequency band (for example, DCS) of the adjacent communication module 120 in the TD-SCDMA system. The frequency band (Band39: 1880-1920MHz) is designed to filter out signals outside the frequency band.

It should be noted that, in this specification, a signal transmission path including a filter can be regarded as a filtering path. In addition, the bypass path may represent a path directly connected to the devices at both ends, for example, a signal transmission path connected by wires or signal transmission lines.

The transmission path 116 may include a power amplifier 161 for respectively amplifying the transmission signals GSM_HB_TX and GSM_LB_TX of the GSM system.

The receive path 117 may include a switch 171 and filters 172 and 173 . The switch 171 can selectively transmit the received signal GSM_HB_RX belonging to the high frequency band of the GSM system from the antenna switching module 113 to one of the two filtering paths including the filter 172 or 173 according to the control signal Ctrl_2, wherein the filter 172 and 173 can be It is designed for the DCS and PCS frequency bands of the GSM system to filter out signals outside these frequency bands.

The receiving path 118 may include a filter 181, and the filter 181 may be designed for the low frequency band of the GSM system to filter out signals outside the low frequency band.

The receive path 119 may include a switch 191 and filters 192 and 193 . The switch 191 can selectively transmit the received signal TD-SCDMA_RX belonging to the TD-SCDMA system from the antenna switching module 113 to one of the two filtering paths including the filter 192 or 193 according to the control signal Ctrl_3, wherein the filter 192 and 193 can be The designs are respectively designed for the operating frequency bands of the TD-SCDMA system (for example, the 34th frequency band and the 39th frequency band) to filter out signals outside these frequency bands.

On the other hand, according to the first embodiment of the present invention, in the communication module 120 , the transmission path 125 may include a power amplifier 251 , a switch 252 , a filter 253 and bypass paths 254 and 255 . The power amplifier 251 is used for respectively amplifying the transmission signals GSM_HB_TX and GSM_LB_TX of the GSM system. The bypass path 255 is used to directly transmit the amplified transmission signal GSM_LB_TX to the antenna switching module 123 . The switch 252 can selectively transmit the transmission signal GSM_HB_TX or GSM_LB_TX belonging to the GSM system from the power amplifier 251 to one of the bypass path 254 or the filter path including the filter 253 according to the control signal Ctrl_4 (the following paragraphs will be directed to the switching of the switch 252 for more details). The filter 253 can be designed as a pass filter for filtering out signals outside the DCS frequency band of GSM.

The receiving path 126 may include a filter 261, and the filter 261 may be designed for the low frequency band of the GSM system to filter out signals outside the low frequency band.

The receive path 127 may include a switch 271 and filters 272 and 273 . The switch 271 can selectively transmit the received signal DCS_RX of the DCS frequency band of the GSM system from the antenna switching module 123 to one of the two filtering paths including the filter 272 or 273 according to the control signal Ctrl_5, wherein the filter 272 and 273 can be used for GSM The DCS frequency band of the system is designed, but may have different bandwidths (the following paragraphs will introduce the bandwidths of the filters 272 and 273 in more detail) to filter out signals outside the frequency band.

The receiving path 128 may include a filter 281, and the filter 281 may be designed for the PCS of the GSM system to filter out signals outside the frequency band.

According to the first embodiment of the present utility model, the processors 111 and 121 can be electrically connected through an interface 300, wherein the processors 111 and 121 can be baseband processors in the communication module, or baseband processors an additional processor. The processors 111 and 121 can receive an operation status information of another communication module through the interface 300 . For example, the processor 111 can actively inform the processor 121 of the operation state information of the communication module to which it belongs via the interface 300 , and vice versa. The processors 111 and 121 can further generate corresponding control signals Ctrl_1, Ctrl_2, Ctrl_3, Ctrl_4, and Ctrl_5 according to the operating state information of the corresponding communication module and another communication module, to respectively control the switches 152, 171, 191, 252, and 271 switch.

For example, assume that filter 172 is designed as a band-pass filter for filtering out signals outside the DCS frequency band of the GSM system, and filter 173 is designed as a band-pass filter for filtering out signals outside the PCS frequency band of the GSM system , then when the communication module 110 intends to receive the signal of the DCS frequency band of the GSM system, the processor 111 can control the switch 171 through the control signal Ctrl_2 to couple the antenna switching module 113 to the filtering path including the filter 172, and when the communication module 110 When the signal of the PCS frequency band of the GSM system is to be received, the processor 111 can control the switch 171 through the control signal Ctrl_2 to couple the antenna switching module 113 to the filtering path including the filter 173 .

Similarly, assume that the filter 192 is designed as a bandpass filter for filtering out signals outside the 34th frequency band of the TD-SCDMA system, and the filter 193 is designed to filter out signals outside the 39th frequency band of the TD-SCDMA system A band-pass filter for the signal of the TD-SCDMA system, when the communication module 110 intends to receive the signal of the 34th frequency band of the TD-SCDMA system, the processor 111 can control the switch 191 through the control signal Ctrl_3 to couple the antenna switching module 113 to the filter 192 filtering path, and when the communication module 110 intends to receive the signal of the 39th frequency band of the TD-SCDMA system, the processor 111 can control the switch 191 through the control signal Ctrl_3 to couple the antenna switching module 113 to the filtering path including the filter 193 .

In addition, according to the first embodiment of the present invention, when the communication modules 110 and 120 transmit or receive radio frequency signals at the same time, especially when the communication module 110 intends to transmit or receive radio frequency signals belonging to the 34th or 39th frequency band of the TD-SCDMA system , and at the same time, when the communication module 120 intends to transmit or receive a radio frequency signal belonging to the DCS frequency band of the GSM system, the processors 111 and 121 can control the switching of the switches 152, 252 and 271 through the control signals Ctrl_1, Ctrl_4 and Ctrl_5 for Reduce mutual interference between radio frequency signals of different systems transmitted or received at the same time.

According to an embodiment of the present invention, when the communication module 110 intends to transmit or receive radio frequency signals belonging to the 34th or 39th frequency band of the TD-SCDMA system, at the same time the communication module 120 intends to transmit or receive radio frequency signals belonging to the DCS frequency band of the GSM system signal, the processor 111 can connect the power amplifier 151 to one of the two filter paths including the filter 153 or 154 through the control signal Ctrl_1, so that the transmission signal belonging to the TD-SCDMA system can pass through the filter path including the filter 153 or 154 One of the two filtered paths is sent to the antenna ANT1.

For example, assuming that the filter 153 is designed as a bandpass filter for filtering out signals outside the 34th frequency band of the TD-SCDMA system, then when the radio frequency signal of the TD-SCDMA system to be transmitted is the radio frequency signal of the 34th frequency band , the processor 111 can connect the power amplifier 151 to the filtering path including the filter 153 through the control signal Ctrl_1, so that the radio frequency signal belonging to the 34th frequency band of the TD-SCDMA system can be transmitted to the antenna ANT1 through the filter 153. Since the signals outside the 34th frequency band have been filtered by the filter 153 before transmission, the transmission signal of the TD-SCDMA system can greatly reduce the interference produced by the reception of the radio frequency signal of the DCS frequency band of the GSM system of the other communication module 120 .

Similarly, assuming that the filter 154 is designed as a bandpass filter for filtering out signals outside the 39th frequency band of the TD-SCDMA system, then when the radio frequency signal of the TD-SCDMA system to be transmitted at present is the radio frequency of the 39th frequency band signal, the processor 111 can connect the power amplifier 151 to the filter path including the filter 154 through the control signal Ctrl_1, so that the radio frequency signal belonging to the 39th frequency band of the TD-SCDMA system can be transmitted to the antenna ANT1 through the filter 154. Since the signals outside the 39th frequency band have been filtered by the filter 154 before transmission, the interference generated by the transmission signal of the TD-SCDMA system to the reception of the radio frequency signal of the DCS frequency band of the GSM system of the GSM system of another communication module 120 can be greatly reduced. .

On the other hand, when the communication modules 110 and 120 are not transmitting or receiving radio frequency signals at the same time, the processor 111 can connect the power amplifier 151 to the bypass path 155 through the control signal Ctrl_1, so that the transmission signals belonging to the TD-SCDMA system can pass through the bypass path 155. The path 155 is directly transmitted to the antenna ANT1 to improve the transmission performance.

According to another embodiment of the present invention, when the communication module 110 intends to transmit or receive radio frequency signals belonging to the 34th or 39th frequency band of the TD-SCDMA system, and at the same time the communication module 120 intends to transmit or receive radio frequency signals belonging to the DCS frequency band of the GSM system For radio frequency signals, the processor 121 can connect the power amplifier 251 to the filtering path including the filter 253 through the control signal Ctrl_4, so that the transmission signal belonging to the DCS frequency band of the GSM system can be transmitted to the antenna ANT2 through the filtering path including the filter 253. Since the signals outside the DCS frequency band of the GSM system have been filtered by the filter 253 before transmission, the transmission signal of the DCS frequency band of the GSM system can be greatly reduced for the reception of the radio frequency signal of the TD-SCDMA system of another communication module 110. interference.

On the other hand, when the communication modules 110 and 120 do not transmit or receive radio frequency signals at the same time, the processor 121 can connect the power amplifier 251 to the bypass path 254 through the control signal Ctrl_4, so that the transmission signals belonging to the DCS frequency band of the GSM system can pass through The bypass path 254 is directly transmitted to the antenna ANT2 to improve transmission performance.

According to yet another embodiment of the present utility model, when the communication module 110 intends to transmit or receive radio frequency signals belonging to the 34th or 39th frequency band of the TD-SCDMA system, and at the same time the communication module 120 intends to transmit or receive the DCS frequency band belonging to the GSM system When receiving a radio frequency signal, the processor 121 can connect the antenna switching module 123 to the filtering path including the filter 272 through the control signal Ctrl_5, so that the received signal belonging to the DCS frequency band of the GSM system is transmitted to the radio frequency via the filtering path including the filter 272 Transceiver 122.

On the other hand, when the communication modules 110 and 120 do not transmit or receive radio frequency signals at the same time, the processor 121 can connect the antenna switching module 123 to the filtering path including the filter 273 through the control signal Ctrl_5, so that the RF signals belonging to the DCS frequency band of the GSM system The received signal is transmitted to the RF transceiver 122 via a filtering path including filter 273 .

According to a preferred embodiment of the present utility model, the filter bandwidth of filter 272 can be designed to be narrower than the filter bandwidth of filter 273, in order to reduce the transmission signal belonging to TD-SCDMA system to the DCS frequency band of GSM system Interference caused by the received signal. For example, the filter 272 can be designed as a band-pass filter that can only pass the signal of the 1805-1850MHz frequency band, and the filter 273 can be designed as a band-pass filter that can pass the signal of the 1805-1880MHz frequency band, so that when the communication module When 110 and 120 transmit or receive radio frequency signals at the same time, the interference generated by the transmitted signal of the TD-SCDMA system on the received signal of the DCS frequency band of the GSM system can be reduced by the filter 272 .

It is worth noting that those skilled in the art can choose to send the transmission and reception signals that may cause mutual interference to the filter path or the bypass path to reduce interference or improve transmission according to the operating status information of the two communication modules described above. The concept of performance makes different circuit designs, resulting in different communication module designs. Therefore, although the preferred embodiments of the present invention are disclosed above, they are not intended to limit the scope of the present invention.

2A and 2B are block diagrams showing a dual-mode, dual-standby, and dual-communication mobile communication device according to a second embodiment of the present invention. The mobile communication device 200 can be a mobile phone, a smart phone or a tablet computer with telephone and Internet functions, and it can include two communication modules 210 and 220, wherein the communication modules 210 and 220 can support more than one wireless access Technology (Radio Access Technology, abbreviated as RAT) communication. For example, in this embodiment, both the communication modules 210 and 220 can support the communication of two radio access technologies of TD-SCDMA and GSM at the same time.

Similar to the communication module 110, the communication modules 210 and 220 respectively include power amplifiers, switches and corresponding filters on the transmission path of the TD-SCDMA system, and respectively include switches and corresponding filters on the receiving path of the TD-SCDMA system .

In addition, similar to the communication module 120, the communication modules 210 and 220 respectively include power amplifiers, switches, and corresponding filters on the transmission path of the GSM system, and include corresponding filters on the receiving paths of the low frequency band and the PCS frequency band of the GSM system. device, and respectively includes a switch and a corresponding filter on the receiving path of the DCS frequency band of the GSM system.

In order to reduce the mutual interference between the transmission and reception signals of the TD-SCDMA system and the GSM system, the communication modules 210 and 220 can respectively control the switches 352, 452 and 371 through corresponding control signals (not shown) according to the concept introduced above. And the switching of 552, 652 and 571, wherein the control mode of switches 352 and 552 is the same as that of switch 152, the control mode of switches 452 and 652 is the same as that of switch 252, and the control mode of switches 371 and 571 is the same as that of switch The control method of 271 is the same, so the description about the control method of the switch can refer to the relevant paragraphs of the first embodiment, and will not be repeated here. In addition, since the components contained in the communication modules 210 and 220 are substantially the same as those of the communication modules 110 and 120, the description of each component in the communication modules 210 and 220 can also refer to the relevant paragraphs of the first embodiment, and in This will not be repeated here.

Although the present utility model is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present utility model. Anyone skilled in the art may make some modifications and changes without departing from the spirit and scope of the present utility model. Modification, therefore, the scope of protection of the present utility model should be defined by the scope of the appended claims.

Claims (15)

1. the device for mobile communication of a dual-mode dual-standby bilateral is characterized in that, comprising:

One first communication module can be supported the communication of one first radio access technology, comprising:

One first radio frequency transceiver;

One first transfer path is coupled to this first radio frequency transceiver, is used for transmitting the first transmission signal that belongs to this first radio access technology;

One first RX path is coupled to this first radio frequency transceiver, is used for receiving the first reception signal that belongs to this first radio access technology; And

One first antenna handover module is coupled to this first transfer path, this first RX path and at least one the first antenna,

Wherein comprise on this first transfer path:

One first power amplifier is coupled to this first radio frequency transceiver;

One first switch is coupled to this first power amplifier, and receives one first control signal;

One first bypass path is coupled between this first switch and this first antenna handover module; And

One first filtering path is coupled between this first switch and this first antenna handover module, and comprises one first filter,

Wherein this first switch is sent to this first transmission signal the wherein one in this first bypass path and this first filtering path by this first power amplifier according to this first control signal selectivity; And

One second communication module can be supported the communication of one second radio access technology, comprising:

One second radio frequency transceiver;

One second transfer path is coupled to this second radio frequency transceiver, is used for transmitting the second transmission signal that belongs to this second radio access technology;

One second RX path is coupled to this second radio frequency transceiver, is used for receiving the second reception signal that belongs to this second radio access technology; And

One second antenna handover module is coupled to this second transfer path, this second RX path and at least one the second antenna.

2. the device for mobile communication of dual-mode dual-standby bilateral according to claim 1, it is characterized in that, this the first radio access technology is a time-division S-CDMA—Synchronous Code Division Multiple Access radio access technology, and this second radio access technology is a global system for mobile communications radio access technology.

3. the device for mobile communication of dual-mode dual-standby bilateral according to claim 2, it is characterized in that, comprise also on this first transfer path that wherein one second filtering path is coupled between this first switch and this first antenna handover module, and this second filtering path comprises one second filter, and wherein this first switch is sent to this first transmission signal the wherein one in this first bypass path, this first filtering path and this second filtering path by this first power amplifier according to this first control signal selectivity.

4. the device for mobile communication of dual-mode dual-standby bilateral according to claim 3 is characterized in that, wherein comprises on this second transfer path:

One second power amplifier is coupled to this second radio frequency transceiver;

One second switch is coupled to this second power amplifier, and receives one second control signal;

One second bypass path is coupled between this second switch and this second antenna handover module; And

One the 3rd filtering path, be coupled between this second switch and this second antenna handover module, and comprise one the 3rd filter, wherein this second switch is sent to this second bypass path or three filtering path with this second transmission signal by this second power amplifier according to this second control signal selectivity.

5. the device for mobile communication of dual-mode dual-standby bilateral according to claim 4 is characterized in that, wherein comprises on this second RX path:

One the 3rd switch is coupled to this second antenna handover module, and receives one the 3rd control signal;

One the 4th filtering path is coupled between the 3rd switch and this second radio frequency transceiver, and comprises one the 4th filter; And

One the 5th filtering path is coupled between the 3rd switch and this second radio frequency transceiver, and comprises one the 5th filter,

Wherein the 3rd switch is sent to four filtering path or five filtering path with this second reception signal by this second antenna handover module according to the 3rd control signal selectivity.

6. the device for mobile communication of dual-mode dual-standby bilateral according to claim 4 is characterized in that, wherein this first filter is a band pass filter, in order to the signal beyond one first frequency band that filters this TD SDMA radio access technology; This second filter is a band pass filter, in order to the signal beyond one second frequency band that filters this TD SDMA radio access technology; And the 3rd filter is a band pass filter, in order to the signal beyond one the 3rd frequency band that filters this global system for mobile communications radio access technology.

7. the device for mobile communication of dual-mode dual-standby bilateral according to claim 2, it is characterized in that, wherein when this first communication module and this second communication module transmits simultaneously or during received RF signal, this first power amplifier is connected to this first filtering path by this first switch, so that this first transmission signal is transferred into this first antenna via this first filtering path.

8. the device for mobile communication of dual-mode dual-standby bilateral according to claim 7, it is characterized in that, wherein when this first communication module and this second communication module nonsimultaneous transmission or received RF signal, this first power amplifier is connected to this first bypass path by this first switch, so that this first transmission signal is transferred into this first antenna via this first bypass path.

9. the device for mobile communication of dual-mode dual-standby bilateral according to claim 4, it is characterized in that, wherein when this first communication module and this second communication module transmits simultaneously or during received RF signal, this second power amplifier is connected to the 3rd filtering path by this second switch, so that this second transmission signal is sent to this second antenna via the 3rd filtering path.

10. the device for mobile communication of dual-mode dual-standby bilateral according to claim 4, it is characterized in that, wherein when this first communication module and this second communication module nonsimultaneous transmission or received RF signal, this second power amplifier is connected to this second bypass path by this second switch, so that this second transmission signal is transferred into this second antenna via this second bypass path.

11. the device for mobile communication of dual-mode dual-standby bilateral according to claim 5, it is characterized in that, wherein when this first communication module and this second communication module transmits simultaneously or during received RF signal, this the second antenna handover module is connected to the 4th filtering path by the 3rd switch, so that this second reception signal is transferred into this second radio frequency transceiver via the 4th filtering path.

12. the device for mobile communication of dual-mode dual-standby bilateral according to claim 11, it is characterized in that, wherein when this first communication module and this second communication module nonsimultaneous transmission or received RF signal, this the second antenna handover module is connected to the 5th filtering path by the 3rd switch, so that this second reception signal is transferred into this second radio frequency transceiver via the 5th filtering path.

13. the device for mobile communication of dual-mode dual-standby bilateral according to claim 5 is characterized in that, wherein a filter frequency range of the 4th filter is narrower than a filter frequency range of the 5th filter.

14. the device for mobile communication of dual-mode dual-standby bilateral according to claim 5, it is characterized in that, wherein this first communication module also comprises a first processor, this second communication module also comprises one second processor, this first processor and this second processor are electrically connected by an interface, and this first/the second processor receives an operating state information of this second/the first communication module by this interface, in order to produce according to this operating state information this first, this second and/or the 3rd control signal.

15. the device for mobile communication of dual-mode dual-standby bilateral according to claim 14, it is characterized in that, wherein this first communication module comprises that also a first user identity module card is coupled to this first processor, and this second communication module comprises that also one second user identity module card is coupled to this second processor.

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