TWI503015B - Mobile communication devices with dual mode, dual standby and dual active function and methods for dynamically changing coupling paths of antennas - Google Patents

Description

Method for coupling path of dual-mode dual standby dual-pass mobile communication device and dynamic switching antenna

The present invention relates to a mobile communication device capable of supporting dual mode dual standby dual communication; and more particularly to a dual communication dual communication dual communication mobile communication device capable of effectively improving antenna design freedom.

With the development of communication technology, more and more mobile communication standards have been standardized, such as: GSM and CDMA of the second generation (2G) mobile communication system, WCDMA and CDMA2000 of the third generation (3G) mobile communication system. TD-SCDMA and fourth-generation (4G) mobile communication systems such as LTE and other mobile communication standards, so mobile communication devices that can support more than one mobile communication standard are also dual-mode (ie, have The mobile communication devices of the two mobile communication modules are the mainstream in this field.

The traditional mobile communication device only supports the dual-mode dual standby single-pass, in which the dual standby represents two communication modules that can stand by at the same time, so that the message transmitted by the network is not missed. The single pass represents only one communication module at the same time and can establish a call or data transmission connection with the remote device: for example, the base station, and another communication module enters an unserviced state in which the message cannot be sent or received.

In order to further enhance the communication performance of mobile communication devices, today A dual-mode mobile communication device capable of supporting dual standby dual-pass has been developed. Since the two communication modules of the dual-mode dual-standby dual-pass mobile communication device can simultaneously establish a call or data transmission connection with the remote device, it is necessary to configure corresponding antennas for each of the two modules. However, in order to make the two modules have good communication quality at the same time, the difficulty of antenna design will increase, which further limits the internal space application and design of the communication device.

Therefore, this case proposes an antenna design that can effectively improve Mobile communication device for space application and design freedom.

According to an embodiment of the present invention, a dual mode dual standby dual communication mobile communication device includes: a first communication module for supporting a first wireless access technology, and a second wireless access technology. a second communication module, a first processor, a first antenna for transmitting and receiving a radio frequency signal in a first frequency range, for operating in a second frequency range to provide a radio frequency A second antenna for transmitting and receiving signals, and a switching device. The switching device is coupled between the first antenna, the second antenna, the first communication module, and the second communication module, and is configured to switch the first antenna and the second antenna respectively with the first communication module and the first The coupling mode of the two communication modules. The second frequency range overlaps at least a portion of the first frequency range, and the second frequency range is narrower than the first frequency range, and when the first communication module establishes a connection with the remote device by using the first wireless access technology, a processor controls the switching device to couple the first antenna to the first communication module, and the second antenna to the second communication module, and when the first communication module does not utilize the first wireless access technology The first process when establishing a connection with the remote device The device controls the switching device to couple the first antenna to the second communication module, and couples the second antenna to the first communication module.

According to another embodiment of the present invention, a dynamic switching of a plurality of days The method for coupling the line is applicable to a dual-mode dual-standby dual-pass mobile communication device, and the dual-mode dual-standby dual-pass mobile communication device includes a first communication module supporting at least the first wireless access technology, and supporting at least a second communication module of the second wireless access technology, a first antenna, a second antenna, and a switching device, wherein the first antenna and the second antenna are coupled to the first communication module through the switching device a second communication module, the method comprising: determining whether the first communication module establishes a connection with a remote device by using the first wireless access technology; and using the first wireless access technology and the remote device by the first communication module When the connection is established, the first antenna is coupled to the first communication module through the switching device, and the second antenna is coupled to the second communication module; and when the first communication module does not utilize the first wireless memory When the connection is established with the remote device, the second antenna is coupled to the first communication module through the switching device, and the first antenna is coupled to the second communication module.

100, 100A, 100B‧‧‧ mobile communication devices

110, 120‧‧‧ communication module

111, 121‧‧‧ fundamental frequency processing device

112, 122‧‧‧RF Transceiver

113, 123‧‧‧Antenna Switching Module

115, 125‧‧‧ processor

114, 124‧‧‧ User Identity Module

130‧‧‧Switching device

A, B‧‧‧ input

ANT1, ANT2‧‧‧ antenna

Path_1, Path_2, Path_3, Path_4‧‧‧ coupling path

X, Y‧‧‧ output

1 is a block diagram showing a dual mode dual standby dual communication mobile communication device according to an embodiment of the present invention.

Figure 2 is a block diagram showing a dual mode dual standby dual communication mobile communication device according to another embodiment of the present invention.

Figure 3 is a block diagram showing a dual mode dual standby dual communication mobile communication device according to still another embodiment of the present invention.

Figure 4 is a diagram showing dynamic switching of complex numbers according to an embodiment of the present invention. A flow chart of a method for coupling a path of an antenna.

Figure 5 is a flow chart showing a method of dynamically switching a coupling path of a plurality of antennas according to another embodiment of the present invention.

In order to make the manufacturing, operation, operation, and advantages of the present invention more obvious, the following detailed description of the preferred embodiments and the accompanying drawings are described in detail as follows: The problem is that at the same time, to improve the antenna design, internal space application and design freedom of the mobile communication device, the present invention proposes a novel mobile communication device architecture, which can support dual mode dual standby dual communication, and can Dynamically switching or changing the coupling path of the plurality of antennas through a switching device. According to an embodiment of the present invention, the mobile communication device of the present invention may include at least two communication modules, a switching device, and at least two antennas. The mobile communication device can be a mobile phone, or a tablet with a mobile phone function, and the two communication modules can each support one or more mobile communication technologies (Radio Access Technology, abbreviated as RAT). .

1 is a block diagram showing a dual mode dual standby dual communication mobile communication device according to an embodiment of the present invention. As shown, the mobile communication device 100 can include communication modules 110 and 120, a switching device 130, and antennas ANT1 and ANT2. The communication module 110 can include at least one baseband processing device 111, a radio frequency transceiver 112, and an antenna switching module 113. The baseband processing device 111 can include a processor 115 and is coupled to a user identity module ( Subscriber Identity Module, abbreviated as SIM) card 114. On the other hand, the communication module 120 The baseband processing device 121 can include a processor 125 and is coupled to a user identity module (SIM). The baseband processing device 121 can include a processor 125. ) Card 124. In an embodiment of the present invention, the user identity module (SIM) card 124 of the communication module 120 and the user identity module (SIM) card 114 of the communication module 110 can be separately issued by two different telecommunication operators. Identity Module (SIM) card, but not limited to this.

In addition, in an embodiment of the present invention, the communication module 110 can support For example, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) and Global System for Mobile Communications (GSM) are two mobile communication standards. Wireless access technology, and the communication module 120 can support, for example, GSM wireless access technology and Wideband Code Division Multiple Access (WCDMA) two mobile communication standards, but Not limited to this.

Since the communication module 110 can support two kinds of mobile communication standards The line access module 113 can be used to transmit the radio frequency signals of the two radio access technologies to the switching device 130, and transmit the received radio frequency signals to the radio frequency transceiver through the corresponding channel according to the radio access technology. Machine 112. Similarly, since the communication module 120 can also support the wireless access technologies of the two mobile communication standards, the antenna switching module 123 can be used to selectively transmit the radio frequency signals of the two wireless access technologies to the switching device 130, and according to the wireless The access technology transmits the received RF signal to the RF transceiver 122 through the corresponding channel.

Processor of communication module 110 according to an embodiment of the invention 115 can determine which wireless access technology and communication module 110 need to use next The remote device establishes a connection to control the switching state of the switching device. In an embodiment of the invention, the antennas ANT1 and ANT2 can provide transmission and reception of radio frequency signals in different frequency ranges, respectively. For example, the antenna ANT1 can support the transmission and reception of radio frequency signals of 800 to 2300 megahertz (MHz), and the antenna ANT2 can support the transmission and reception of radio frequency signals of 800 to 1900 megahertz (MHz), which is supported by the antenna ANT1. The frequency range overlaps at least partially with the frequency range supported by the antenna ANT2, and the frequency range supported by the antenna ANT2 is narrower than the frequency range supported by the antenna ANT1. Since only the antenna ANT1 can support the transmission and reception of the radio frequency signals above 1900 MHz, the processor 115 can determine according to which radio access technology the communication module 110 needs to use to establish a connection with the remote device. This information indicates how many megahertz (MHz) the frequency range that the communication module 110 will utilize, and accordingly determines whether the switching state of the switching device 130 needs to be changed.

According to an embodiment of the invention, the switching device 130 can be a pair Double Pole (Double Throw, abbreviated as DPDT) switch with two inputs A and B and two output terminals X and Y. The switching device 130 can be switched to two different states. For example, in the first state, the input terminal A is electrically connected to the output terminal X, and the intermediate input terminal B is electrically connected to the output terminal Y. In the second state, the input terminal A is electrically connected to the output terminal Y, and the intermediate input terminal B is electrically connected to the output terminal X. According to an embodiment of the present invention, the processor 115 can control whether the switching device 130 changes its switching state through some control signals, such as a general-purpose input/output (GPIO) pin control signal.

Figure 2 is a diagram showing a double according to another embodiment of the present invention. Block diagram of a dual-pass dual-pass mobile communication device, wherein the mobile communication device 100A The result of switching the switching device 130 of the mobile communication device 100 shown in FIG. 1 to the first state. When the switching device 130 is switched to the first state, the antenna switching module 113 of the communication module 110 can be coupled to the antenna ANT1 via the coupling path Path_1, and the antenna switching module 123 of the communication module 120 can be coupled via the coupling path. Path_2 is coupled to the antenna ANT2. In this way, the communication module 110 can transmit and receive radio frequency signals through the antenna ANT1, and the communication module 120 can transmit and receive radio frequency signals through the antenna ANT2. For example, the direction of the arrow in the figure shows that the communication module 110/120 transmits the signal transmission path of the RF signal through the antennas ANT1/ANT2, respectively, and the receiving path of the RF signal is in the opposite direction.

According to an embodiment of the invention, the first state can be set To switch the preset state of the device 130. For example, after the mobile communication device is turned on, the processor 115 can control the switching device 130 to switch to the first state first. When the processor 115 determines that the communication module 110 only needs to use a narrow frequency range to establish a connection with a remote device (such as a base station), or judges that the communication module 110 does not need to use a high frequency. The frequency range, such as the above-described frequency range above 1900 MHz, can be controlled to switch to the second state when a connection is established with the remote device.

Figure 3 is a view showing still another embodiment of the present invention. A block diagram of a dual mode dual standby dual communication mobile communication device, wherein the mobile communication device 100B is a result of switching the switching device 130 of the mobile communication device 100 shown in FIG. 1 to the second state. When the switching device 130 is switched to the second state, the antenna switching module 113 of the communication module 110 can be coupled to the antenna ANT2 via the coupling path Path_3, and the antenna switching module 123 of the communication module 120 can be coupled via the coupling path. Path_4 is coupled to the antenna ANT1. In this way, the communication module 110 can transmit through the antenna The ANT2 transmits and receives radio frequency signals, and the communication module 120 can transmit and receive radio frequency signals through the antenna ANT1. For example, the direction of the arrow in the figure shows that the communication module 110/120 transmits the signal transmission path of the RF signal through the antenna ANT2/ANT1, respectively, and the receiving path of the RF signal is in the opposite direction.

Figure 4 is a diagram showing the dynamics according to an embodiment of the present invention. A flow chart of a method for switching a coupling path of a plurality of antennas. As shown in the figure, the processor first determines whether the associated communication module establishes a connection with a remote device using a higher frequency wireless access technology (step S402). When the communication module establishes a connection with the remote device by using a higher frequency wireless access technology, the first antenna supporting the higher frequency range is coupled to the communication module through the switching device, and the next day The line is coupled to another communication module (step S404). When the communication module does not use the higher frequency wireless access technology to establish a connection with the remote device, the second antenna is coupled to the communication module through the switching device, and the first frequency of the higher frequency range is supported. The antenna is coupled to another communication module (step S406). It should be noted that, in other embodiments of the present invention, the determining condition of step S402 may be modified to determine which wireless access technology the communication module belongs to establish a connection with the remote device, and determine the associated communication module. Next, which frequency range is used to establish a connection with the remote device, or the like, and decide which state to switch the switching device to according to different judgment conditions. Therefore, the invention is not limited to the embodiments described in the above embodiments. In addition, in the embodiment of the present invention, the communication module does not use a specific wireless access technology to establish a connection with the remote device. The communication module may not be able to find or connect to the support through the antenna to which the communication module is connected. The particular wireless access technology remote device or the communication module is selected to utilize other wireless access technologies, and the invention is not limited to the specific implementation.

The following paragraphs will describe in more detail the method for dynamically switching the coupling path of a plurality of antennas proposed by the present invention. In the following embodiments, the first communication module can support the wireless access technology of the TD-SCDMA and GSM mobile communication standards, and the second communication module can support the wireless access technology of the WCDMA and GSM mobile communication standards, and the antenna. ANT1 can support the transmission and reception of RF signals from 800 to 2300 megahertz (MHz). Antenna ANT2 can support the transmission and reception of RF signals from 800 to 1900 MHz. However, it is worth noting that the implementation of the present invention is not limited to three radio access technologies, such as TD-SCDMA, GSM, and WCDMA, and their corresponding operating frequency ranges. Anyone skilled in the art can apply the concept of the present invention to other different wireless access technologies or operating frequency ranges and correspondingly design antenna support without departing from the spirit and scope of the present invention. Different frequency ranges, and the antennas are dynamically coupled to different communication modules by switching devices to achieve the same or similar results. Therefore, the scope of the invention is defined by the scope of the appended claims.

FIG. 5 is a flow chart showing a method for dynamically switching a coupling path of a plurality of antennas according to another embodiment of the present invention, wherein the communication device provided by the present invention includes two communication modules, and the two communication modes The group can operate simultaneously and independently, and the switching of the switching device is designed to be controlled by the first communication module, so the flow shown in FIG. 5 is only used to describe the operation flow of the first communication module. In this embodiment, the first communication module can support the wireless access technology of the TD-SCDMA and GSM mobile communication standards, and the second communication module can support the wireless access technology of the WCDMA and GSM mobile communication standards. When the mobile communication device is powered on (step S502), the switching device switches to the first state in advance. (As shown in Fig. 2), at this time, the first communication module presets that the antenna ANT1 can be used for transmitting and receiving radio frequency signals. Next, the first communication module attempts to connect to the network of the TD-SCDMA (step S504). In the embodiment of the present invention, since the data transmission speed of the TD-SCDMA wireless access technology is faster than the data transmission speed of the GSM wireless access technology, the first communication module is designed to be prioritized to connect to the network. TD-SCDMA network. Next, the first communication module determines whether the TD-SCDMA network can be successfully camped on via the antenna ANT1 (step S506). If the first communication module can search for and successfully connect to the remote device in the TD-SCDMA network through the antenna ANT1, the first communication module uses the antenna ANT1 to connect with the TD-SCDMA network (step S508). . If the first communication module cannot find or cannot connect to the remote device in the TD-SCDMA network through the antenna ANT1, the first communication module then attempts to connect to the GSM network (step S510).

Next, the first communication module determines whether the GSM network can be successfully connected to the network through the antenna ANT1 (step S512). If so, the first communication module uses the antenna ANT1 to connect to the GSM network (step S514). If not, the first communication module then determines whether it is now an unserviced state in which the message cannot be sent or received (step S516). If so, the first communication module is currently unable to receive any available signals, for example, entering the geographic area where the telecommunications carrier does not have a network, or entering a network without any network or any network. And the geographical area, etc. At this time, the first communication module can enter the no-service state mode (step S518) and re-execute the network search after a predetermined time (for example, returning to step S504) in an attempt to rediscover the available network. If not, the first communication module currently enters the roaming mode, that is, the first communication module can receive The signal of other networks cooperated with the telecommunications carrier to which it belongs. At this time, since the first communication module does not need to use the highest frequency band for connection, the first communication module can control the switching module to switch to the second. The state (as shown in Fig. 3) (step S520). It should be noted that, according to another embodiment of the present invention, when the first communication module determines that the cocoa can successfully connect to the GSM network, the switch module may be switched to the second state before or after step S514. .

In general, the switching of the switching module 130 is only a momentary operation. Therefore, the first communication module can determine any time after the connection with the remote device is not necessary or possible to use the higher frequency wireless access technology. The control switching module switches to the second state without affecting the communication quality of the mobile communication device. As for the second communication module, the operation process is the same as that of the first communication module, and the same can be designed to first connect to a more advanced or fast data transmission wireless access technology (for example, WCDMA), if not connected Line, then try to connect to other wireless access technologies (for example, GSM), which differs from the first communication module only in that the second communication module does not actively control the switching module. When the state of the switching module changes, only the signal transmission path is passively changed for the second communication module, that is, the radio frequency signal will be transmitted and received through different antennas, so the state of the switching module changes for the second The operational process of the communication module does not have any impact. Since the operation process of the second communication module is similar to that of the first communication module, any skilled person skilled in the art can derive the operation process of the second communication module according to the above description, and therefore will not be described again.

The above-described embodiments of the present invention can be performed in a variety of ways, such as using hardware, software, or a combination thereof. Those skilled in the art should be aware that any component or combination of components performing the above functions can be considered as one or more controls. The processor of the above functions. The one or more processors can be executed in a variety of manners, such as by specifying hardware, or general purpose hardware programmed using microcode or software.

The use of ordinal numbers such as "first," "second," etc. It is only used as an identifier to distinguish between different components with the same name (with different ordinal numbers).

The present invention has been described above with reference to the preferred embodiments thereof, and is not intended to limit the scope of the present invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧Mobile communication device

110, 120‧‧‧ communication module

111, 121‧‧‧ fundamental frequency processing device

112, 122‧‧‧RF Transceiver

113, 123‧‧‧Antenna Switching Module

115, 125‧‧‧ processor

114, 124‧‧‧ User Identity Module

130‧‧‧Switching device

A, B‧‧‧ input

ANT1, ANT2‧‧‧ antenna

X, Y‧‧‧ output

Claims (13)

A dual-mode dual-standby dual-pass mobile communication device includes: a first communication module for supporting a first wireless access technology; and a second communication module for supporting a second wireless access technology; a first processor, configured to operate to transmit and receive radio frequency signals in a first frequency range, and a second antenna to operate to provide radio frequency signals in a second frequency range Transmitting and receiving; and a switching device coupled between the first antenna, the second antenna, the first communication module, and the second communication module, for switching the first antenna and the The second antenna is coupled to the first communication module and the second communication module, wherein the second frequency range overlaps with the first frequency range at least partially, and the second frequency range is narrower than The first frequency range; wherein when the first communication module establishes a connection with a remote device by using the first wireless access technology, the first processor controls the switching device to couple the first antenna to The first communication module simultaneously couples the second antenna The second communication module, and when the first communication module does not establish a connection with the remote device by using the first wireless access technology, the first processor controls the switching device to couple the first antenna The second communication module is coupled to the first communication module, and the switching device is a dual-axis double-cut switch. The dual-mode dual-standby dual-pass mobile communication device of claim 1, wherein the first processor is included in the first communication module, and the first communication module further includes a first RF The transceiver and a first antenna switching module are coupled between the switching device and the first RF transceiver; and the second communication module includes a second processor and a second antenna switching module Connected between the switching device and the second radio frequency transceiver. The dual-mode dual standby dual-pass mobile communication device according to claim 1, wherein the first communication module does not use the first wireless access technology to establish a connection with the remote device due to the first The communication module cannot find or connect to the remote device through the first antenna. The dual-mode dual-standby dual-pass mobile communication device of claim 3, wherein the first communication module further includes a first user identity module (SIM) card coupled to the first processor, The second communication module further includes a second user identity module (SIM) card coupled to the second processor. The dual-mode dual-standby dual-pass mobile communication device according to the first aspect of the invention, wherein the first communication module is further configured to support a third wireless access technology, and when the first communication module utilizes the When the third wireless access technology establishes a connection with the remote device, the first processor controls the switching device to couple the first antenna to the second communication module, and couples the second antenna To the first communication module. The dual-mode dual standby dual-pass mobile communication device according to claim 5, wherein the first RAT is a time division synchronous code division multiple access (TD-SCDMA) technology, and the second wireless storage The technology is a wideband code division multiple access (WCDMA) technology, and the third radio access technology is a global Wireless access technology for mobile communication systems (GSM). The dual-mode dual-standby dual-pass mobile communication device according to claim 1, wherein when the first processor controls the switching device to couple the first antenna to the second communication module, The second communication module establishes a connection with another remote device by using the second wireless access technology. A method for dynamically switching a coupling path of a plurality of antennas, which is suitable for a dual mode dual standby dual communication mobile communication device, the dual mode dual standby dual communication mobile communication device comprising one of at least one first wireless access technology a communication module supporting at least one second communication module of the second wireless access technology, a first antenna, a second antenna, and a switching device, wherein the first antenna and the second antenna pass through The switching device is coupled to the first communication module and the second communication module, the method includes: determining whether the first communication module establishes a connection with a remote device by using the first wireless access technology; When the first communication module establishes a connection with the remote device by using the first wireless access technology, the first antenna is coupled to the first communication module through the switching device, and the second day is The line is coupled to the second communication module; and when the first communication module does not establish a connection with the remote device by using the first wireless access technology, the second antenna is coupled through the switching device To the first communication module, the first antenna is coupled at the same time The second communication module, wherein the switching means is a double-cut switch biaxially. The method of claim 8, wherein the first antenna is configured to provide transmission and reception of a radio frequency signal in a first frequency range, the second day The line is configured to provide transmission and reception of a radio frequency signal in a second frequency range, the second frequency range overlapping at least a portion of the first frequency range, and the second frequency range is narrower than the first frequency range. The method of claim 8, wherein the first communication module is further configured to support a third wireless access technology, wherein the first communication module utilizes the third wireless access technology and the remote end When the device establishes a connection, the second communication module establishes a connection with another remote device by using the second wireless access technology. The method of claim 10, wherein the first RAT is a time division synchronous code division multiple access (TD-SCDMA) radio access technology, and the second radio access technology is a wideband code. A multiple access (WCDMA) wireless access technology, and the third wireless access technology is a Global System for Mobile Communications (GSM) wireless access technology. The method of claim 8, wherein the method further comprises: when the first antenna is coupled to the first communication module and the second antenna is coupled to the second communication module, the method further comprises: The first communication module transmits and receives a radio frequency signal through the first antenna; and the second communication module transmits and receives a radio frequency signal through the second antenna. The method of claim 8, wherein the method further comprises: when the first antenna is coupled to the second communication module and the second antenna is coupled to the first communication module, the method further comprises: The first communication module transmits and receives a radio frequency signal through the second antenna; and the second communication module transmits and receives the radio frequency signal through the first antenna.