WO2013120311A1

WO2013120311A1 - Method and apparatus for controlling antenna of mobile terminal, and mobile terminal

Info

Publication number: WO2013120311A1
Application number: PCT/CN2012/073605
Authority: WO
Inventors: 王启胜
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-02-17
Filing date: 2012-04-06
Publication date: 2013-08-22
Also published as: CN102611468A

Abstract

Disclosed are a method and an apparatus for controlling an antenna of a mobile terminal, and a mobile terminal. The method comprises: controlling, through high and low levels of a baseband chip, a multimode switch to switch between different application function chips; after the multimode switch executes switching, prompting a user to adjust an external telescopic antenna to a length corresponding to the application function chip after the switching; by using the application function chip after the switching and the adjusted external telescopic antenna, executing an application function after the switching. The present invention solves the problem in the related technology that interference between antennas is strong because of efforts in ensuring performance of application functions of a mobile terminal in a small room inside the mobile terminal, improves the performance of application functions of the mobile terminal, and improves the user experience.

Description

The present invention relates to the field of communications, and in particular to a method, an apparatus, and a mobile terminal for controlling an antenna in a mobile terminal. BACKGROUND OF THE INVENTION With the rapid development of wireless communication, the functions of wireless terminals are becoming more and more abundant, and the number of antennas included in the terminals is also increasing, and accordingly, the interference between these antennas is becoming stronger. How to effectively avoid the interference between these antennas has always been a headache for many engineers. In recent years, with the continuous development of modern communication technologies, wireless terminal products, especially mobile phone products, have more and more powerful processing capabilities and functions, such as wireless fidelity (Wireless Fidelity, which we often use). WiFi) function, Global Positioning System (GPS) function, Bluetooth (BT) function, mobile phone built-in FM (Frequency Modulation) FM function and China Mobile Multimedia Broadcasting, referred to as CMMB) (for example, mobile TV) features. These more and more features can bring consumers a more powerful experience and pleasure, but at the same time, the developers of mobile phone products are getting more and more headaches - the more functions, the more antennas; The more antennas there are, the more interference there is, and the performance of the product is bound to drop a lot. The traditional solution is to make the distance of these antennas as far as possible. The purpose of this is to reduce the interference between the antennas. However, the size of mobile phone products is getting smaller and smaller, and the space available for antennas is getting smaller and smaller. The distance between the antennas required for various functions on mobile phones is getting closer and closer. The interference between them is getting bigger and bigger, and the performance is getting worse. How to reduce the interference between antennas has become a headache. 1 is a schematic diagram of a multi-functional mobile phone antenna layout according to the related art. As shown in FIG. 1, we can see from the figure: 1. The higher the end of the mobile phone, the more performance it contains, and the number of antennas required. more. In Figure 1, the mobile phone requires a total of six antennas, namely the RF main antenna, the built-in FM antenna, the GPS antenna, the CMMB antenna, the WiFi antenna and the Bluetooth antenna. The antennas are respectively printed on the printed circuit board (PCB). The internal traces are connected to their respective chips. They are indicated by dashed lines in Figure 1. The chip models are labeled as 6, 1, 2, 5, 4, and 3; 2. The more antennas are used, the more antennas are used during operation. Will inevitably produce mutual dryness Disturb. The above-mentioned antennas are distributed around the board, and the number thereof is limited. Not only the layout and structure are limited, but also the performance is not guaranteed because the antennas easily interfere with each other during operation. An effective solution has not been proposed for the problem that the interference between the antennas is strong in order to ensure the performance of the application function in a small space within the mobile terminal in the related art. SUMMARY OF THE INVENTION The present invention provides a control scheme for an antenna in a mobile terminal in the embodiment of the present invention, in order to solve the problem that the interference between the antennas is strong in the mobile terminal. At least solve the above problem. According to an embodiment of the present invention, a method for controlling an antenna in a mobile terminal is provided, including: switching between different application function chips by a high-low level control multi-mode switch of a baseband chip; after the multi-mode switch performs switching, prompting a user to The external whip antenna is adjusted to the length corresponding to the switched application function chip; the switched application function and the adjusted external whip antenna are used to perform the switched application function. Preferably, the application function chip comprises at least one of the following: a frequency modulation function chip, a global positioning system function chip, a Bluetooth function chip, a wireless fidelity function chip, and a China Mobile multimedia broadcast function chip. Preferably, before the switching of the high-level control multi-mode switch of the baseband chip in different application function chips, the method further comprises: the baseband chip acquiring an instruction to switch the application function chip. Preferably, switching between the high-low level control multi-mode switches of the baseband chip in different application function chips comprises: switching between different application function chips by the high-low level control multi-mode switches of the GPIO pins of the baseband chip. Preferably, switching between the high-low level control multi-mode switches of the baseband chip in different application function chips comprises: switching between the high-low level control multi-mode switches of the two GPIO pins of the baseband chip in different application function chips. According to another embodiment of the present invention, a control device for an antenna in a mobile terminal is provided, including: a control module configured to switch between different application function chips by a high-low level control multi-mode switch of a baseband chip; After the multi-mode switch performs switching, the user is prompted to adjust the external whip antenna to the length corresponding to the switched application function chip; and the execution module is set to use the switched application function chip and the adjusted external lever The antenna performs the application function after switching. Preferably, the device further comprises: an obtaining module, configured to acquire, by the baseband chip, an instruction to switch the application function chip. Preferably, the control module comprises: a control unit configured to switch between different application function chips through the high and low level control multi-mode switches of the GPIO pins of the baseband chip. According to still another embodiment of the present invention, a mobile terminal is provided, including a baseband chip, a multimode switch, and an external whip antenna, wherein the baseband chip is configured to control the multimode switch in different application function chips through its high and low levels. Medium switching; multimode switch, electrically connected to the baseband chip and the external whip antenna, configured to couple different application function chips to the external whip antenna under the control of the baseband chip; and an external whip antenna, set to pass Adjust its length to receive signals from different application functions of the mobile terminal. Preferably, the external whip antenna comprises a multi-section pull rod, wherein when the multi-section pull rod is in different sections, the external whip antennas respectively correspond to an antenna for realizing an application function. Through the embodiment of the invention, the external rod antenna capable of adjusting the length is used together with the multi-mode switch, so that the same rod antenna can realize the function of multiple application function antennas in the related art, thereby maintaining the original performance of the application function. In this case, the number of antennas in the internal space of the mobile terminal is reduced, and the interference between the antennas can be reduced, thereby solving the interference between the antennas in the related art in order to ensure the performance of the application function in a small space. Strong problems improve the performance of mobile terminal application functions and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic diagram of a multi-functional mobile phone antenna layout according to the related art; FIG. 2 is a flowchart of a method for controlling an antenna in a mobile terminal according to an embodiment of the present invention; FIG. 3 is a mobile terminal according to an embodiment of the present invention. 4 is a structural block diagram of a control device for an antenna in a mobile terminal according to a preferred embodiment of the present invention; FIG. 5 is a block diagram showing the structure of a mobile terminal according to an embodiment of the present invention; An antenna scheme used in the optimization of the preferred embodiment of the invention; FIG. 7 is a schematic structural view of a whip antenna according to a preferred embodiment of the present invention; 8 is a connection diagram of a chip, a multimode switch, and a whip antenna of different functions according to a preferred embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The present embodiment provides a method for controlling an antenna in a mobile terminal. FIG. 2 is a flowchart of a method for controlling an antenna in a mobile terminal according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps: Step S202: The high-low level control multi-mode switch of the baseband chip is switched in different application function chips; Step S204, after the multi-mode switch performs switching, prompting the user to adjust the external whip antenna to the length corresponding to the switched application function chip; Step S206, performing the switched application function by using the switched application function chip and the adjusted external whip antenna. In this embodiment, by controlling the multi-mode switch to achieve switching between different application function chips, the external whip antenna is adjusted to the length corresponding to the switched application function chip, and the switched application function chip and the switch are used. The adjusted external rod antenna performs the switching application function, and the external rod antenna capable of adjusting the length is used together with the multi-mode switch, so that the same rod antenna can realize the function of multiple application function antennas in the related art, thereby In the case of maintaining the original performance of the application function, the number of antennas in the internal space of the mobile terminal is reduced, thereby reducing the interference between the antennas, and solving the related art in the mobile terminal to ensure the application function in a small space. The performance causes a strong interference between the antennas, improves the performance of the mobile terminal application function, and improves the user experience. The application function chip may include, but is not limited to, at least one of the following: a frequency modulation (Frequency Modulation, FM for short) function chip, a global positioning system (GPS) functional chip, and a Bluetooth (referred to as BT). ) Function chip, Wireless Fidelity (WiFi) function chip, Mobile TV (CMMB) function chip. Preferably, before the step S202 switches the high-mode control multi-mode switch of the baseband chip in different application function chips, the baseband chip can acquire an application function that needs to be executed, for example, an instruction to switch the application function chip can be acquired, thereby according to the instruction. Get the application function chip that needs to be switched to. This method is convenient and easy. In step S202, there are various ways to switch the multi-mode switch in the different application function chips through the high-low level control of the baseband chip, for example, the general purpose input output (GPIO) can be passed through the baseband chip. The high and low level control of the pin switches the multimode switch in different application function chips. This method is easy to implement. Preferably, the multi-mode switch of the two GPIO pins of the baseband chip can be switched in different application function chips, and the control mode can conveniently control the multi-mode switch in four different application function chips. Switch. Corresponding to the above method, the embodiment further provides a control device for the antenna in the mobile terminal, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used hereinafter, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. 3 is a structural block diagram of a control device for an antenna in a mobile terminal according to an embodiment of the present invention. As shown in FIG. 3, the device includes: a control module 32, a prompting module 34, and an execution module 36. The above modules will be described in detail below. The control module 32 is configured to switch between different application function chips by the high-low level control multi-mode switch of the baseband chip; the prompting module 34 is coupled with the control module 32, and is set to prompt the user to be outside after the multi-mode switch performs the switching. The lever antenna is adjusted to a length corresponding to the switched application function chip; the execution module 36 is coupled to the control module 32 and the prompt module 34, and is configured to use the application function chip switched by the control module 32 and the prompt module 34 to prompt the adjustment. The external whip antenna performs the application function after switching. In the embodiment, the external rod antenna capable of adjusting the length is used together with the multi-mode switch, so that the same rod antenna can realize the function of multiple application function antennas in the related art, thereby maintaining the application function. In the case of performance, the number of antennas in the internal space of the mobile terminal is reduced, and interference between the antennas can be reduced, thereby solving the interference between the antennas in the related art in order to ensure the performance of the application function in a small space. Stronger problems have improved the performance of mobile terminal application functions and improved the user experience. 4 is a structural block diagram of a control device for an antenna in a mobile terminal according to a preferred embodiment of the present invention. As shown in FIG. 4, the device may further include: an obtaining module 42 coupled to the control module 32 and configured to acquire a baseband chip. Application of the instructions of the function chip. The control module 32 may include: a control unit 322 configured to switch between different application function chips through the high and low level control multi-mode switches of the GPIO pins of the baseband chip. Preferably, the control unit 322 can also be configured to switch between different application function chips through the high and low level control multi-mode switches of the two GPIO pins of the baseband chip. According to another aspect of the embodiment, a mobile terminal is further provided. FIG. 5 is a structural block diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 5, the mobile terminal includes a baseband chip 52 and a multimode switch 54. And an external whip antenna 56, wherein the baseband chip 52 is configured to switch between different application function chips through its high and low level control multimode switches; the multimode switch 54 is electrically connected to the baseband chip 52 and the external whip antenna 56 The different application function chips are coupled to the external whip antenna 56 under the control of the baseband chip 52; the external whip antenna 56 is arranged to receive signals of different application functions of the mobile terminal by adjusting its length. In this embodiment, the external lever antenna 56 capable of adjusting the length is used together with the multi-mode switch 54 by using the above-mentioned mobile terminal, so that the same rod antenna can realize the function of multiple application function antennas in the related art, thereby maintaining the application function. The original performance reduces the number of antennas in the internal space of the mobile terminal, thereby reducing interference between the antennas, and solving the antenna in the related art in order to ensure the performance of the application function in a small space inside the mobile terminal. The problem of strong interference between the two increases the performance of the mobile terminal application function and improves the user experience. Preferably, the external whip antenna may comprise a multi-section tie rod, wherein when the multi-section pull rod is in different sections, the external whip antennas respectively correspond to an antenna for realizing an application function. For example, each of the levers of the external whip antenna may correspond to a WiFi function, a GPS function, a CMMB function, a Bluetooth function, and an FM function, respectively. In the above manner, it is easier to adjust to the designated position when adjusting the length of the external whip antenna, and it is advantageous for the protection of the external whip antenna. The following description is made in conjunction with the preferred embodiments incorporating the above-described embodiments and preferred embodiments thereof. The preferred embodiment is described by taking the mobile terminal as a mobile phone as an example. The performance of the original application function is kept unchanged in the inner space of the smaller and smaller mobile terminal, but at the same time, the number of antennas is reduced, thereby reducing the interference problem between the antennas. Under the premise that the layout space of the mobile phone is unchanged and the performance is unchanged, an external trolley antenna is introduced by adding a multi-mode switch, and the antennas with corresponding functions are removed at the same time, thereby effectively solving the problem that the mutual interference between the multiple antennas is strong. , reducing interference between the antennas. The multi-antenna scheme in the preferred embodiment may be designed as follows. The design includes the following steps: Step A: removing antennas of functions on the mobile phone, and connecting the transmitting and receiving ends of each functional chip through a multi-mode switch. And switching between the functions by the high-low level control multi-mode switch of the baseband chip; Step B, introducing a tunable length rod antenna at one end of the multi-mode switch, and adjusting the strength of the antenna signal by adjusting the length of the rod antenna; Step c, through the prompt on the operation interface of the mobile phone display, indicating the length of the user conditional rod antenna, and adjusting the length of the rod antenna corresponding to the corresponding function, thereby achieving the purpose of sharing one antenna by the multifunctional. In the increasingly complex mobile phone environment, the present embodiment reduces the number of antennas inside the mobile phone, thereby reducing mutual interference caused by multiple antennas inside the mobile phone, and finally achieving the purpose of optimizing antenna performance. The above method can not only ensure the performance of various functions on the terminal, but also effectively reduce the mutual interference between the antennas, and is superior and prominent on the function-rich intelligent machine and the function machine. The specific implementation of the preferred embodiment will be further described in detail below with reference to the accompanying drawings. This embodiment provides a solution that can be used to reduce mutual interference between multiple antennas on a mobile phone, and can effectively reduce the number of antennas in a mobile phone with complicated functions, and instead use a whip antenna instead of requiring multiple antennas. The function. As the number of antennas is reduced, the interference between them is also reduced, so the performance of the antenna is further improved. The solution of the preferred embodiment introduces a multi-mode switch and a whip antenna on the basis of a multi-functional mobile phone and multiple antennas, and the two together can completely replace the functions that can be realized by multiple antennas, so that the function is not reduced. The number of antennas is effectively reduced. FIG. 6 is an antenna scheme used for optimization according to a preferred embodiment of the present invention, as shown in FIG. 6. Compared with the antenna antenna layout of FIG. 1, the scheme is FM, WiFi, The antennas of the four functions of GPS and Bluetooth are removed; instead, a telescopic length of the whip antenna is connected, and the whip antenna is connected through a shrapnel and a Printed Circuit Board (PCB) board. FIG. 7 is a schematic structural diagram of a whip antenna according to a preferred embodiment of the present invention. As shown in FIG. 7, the whip antenna may include four bar rods, and the length of each bar may be different, and the length of each bar corresponds to an antenna. Performance, so the four-section length corresponds to four corresponding functions; the FM transceivers of FM, WiFi, GPS and Bluetooth chips are connected to the multi-mode switch (the multi-mode switch is indicated by the reference numeral 7 in Figure 6), The multimode switch is connected through the internal PCB trace and the whip antenna. FIG. 8 is a schematic diagram of a connection of a chip, a multimode switch, and a whip antenna with different functions according to a preferred embodiment of the present invention. As shown in FIG. 8, the baseband chip controls the working state of the multimode switch through a high level and a low level at the GPIO pin. , thus controlling the opening or closing of functions such as FM, WiFi, GPS, and Bluetooth. The following describes the operation of this connection. Table 1 is a logical control truth table of the multimode switch operating state in accordance with a preferred embodiment of the present invention, where L is represented as a low level and H is represented as a high level.

Working status GPIO 1 GPIO 2

1 FM L L

4_WiFi LH

Table 1 As shown in Table 1, if the user needs to use the FM function, first select the FM function on the operation interface of the mobile phone. At this time, the mobile phone will send commands to the baseband chip through the internal software. Comparing Table 1, we can see that when the baseband chip controls its GPIO pins 1 and 2 to be low level L, respectively, its working state is FM working state. At this time, the multimode switch in Figure 8 will put FM. The chip receiving path is opened, and the user is prompted to open the first section of the whip antenna on the mobile phone interface. After the user pulls the first section of the whip antenna, the working state of the whip antenna becomes the receiving FM signal, and then passes the multimode. After the switch branch, the FM chip performs signal demodulation, etc., so that the working mode is in the FM receiving state. Similarly, if the user wants to use the GPS function, the baseband chip can set the two high and low levels of the GPIO pin to H and L respectively by the operation of the mobile phone software, so that the working state changes to the GPS state, and the prompt through the interface The user can receive the GPS signal by pulling the second length of the rod antenna. By analogy, if the user wants to use multiple functions at the same time, the function can be used as long as the corresponding branch corresponding to the whip antenna required for the function is opened. Referring to Figure 1, Figure 6 and Figure 7, we can find that in this way, FM, WiFi, GPS, Bluetooth and other antennas can be removed. Instead, only one rod antenna is needed to fully satisfy the four antennas. By adjusting the length of the rod antenna to improve the performance of the antenna, the user can adjust the position of the antenna through the signal strength on the mobile phone interface and the corresponding indication, so that the antenna works optimally. In the above specific implementation, by introducing a multi-mode switch and a telescopic length rod antenna on the mobile phone, the versatility of the mobile phone can be ensured, the number of antennas can be reduced, and the redundant antenna can be removed. The distance between different antennas is opened, thereby effectively reducing the mutual interference problems of these antennas during operation and other antennas, and improving the performance of the antenna. From the above description, it can be seen that the following technical effects are achieved in the embodiment of the present invention: an external rod antenna capable of adjusting the length is used together with a multi-mode switch, so that the same rod antenna can realize multiple applications in related technologies. The function of the functional antenna, thereby reducing the number of antennas in the internal space of the mobile terminal while maintaining the original performance of the application function, thereby reducing the interference between the antennas, and solving the related art in the small space inside the mobile terminal In order to ensure the performance of the application function, the interference between the antennas is strong, the performance of the application function of the mobile terminal is improved, and the user experience is improved. In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments. In another embodiment, a storage medium is also provided, the software being stored, including but not limited to an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for controlling an antenna in a mobile terminal, comprising:

Switching between the high-low level control multi-mode switches of the baseband chip in different application function chips; after the multi-mode switch performs switching, prompting the user to adjust the external whip antenna to the length corresponding to the switched application function chip;

The switched application function is performed using the switched application function chip and the adjusted external whip antenna.

2. The method according to claim 1, wherein the application function chip comprises at least one of the following: an FM FM function chip, a GPS function chip, a Bluetooth BT function chip, a wireless fidelity WiFi function chip, China Mobile Multimedia broadcast CMMB function chip.

3. The method according to claim 1, wherein before the switching of the multi-mode switch in different application function chips by the high and low level of the baseband chip, the method further comprises:

The baseband chip acquires an instruction to switch the application function chip.

4. The method according to claim 1, wherein controlling the switching of the multi-mode switch in different application function chips by the high and low level of the baseband chip comprises:

The multimode switch is switched between different application function chips by the high and low levels of the general purpose input and output GPIO pins of the baseband chip.

5. The method according to claim 4, wherein controlling switching of the multi-mode switch in different application function chips by the high and low level of the baseband chip comprises:

The multimode switch is controlled to switch between different application function chips by the high and low levels of the two GPIO pins of the baseband chip.

6. A control device for an antenna in a mobile terminal, comprising:

The control module is configured to switch between different application function chips through the high-low level control multi-mode switch of the baseband chip;

a prompting module, configured to prompt the user to adjust the external whip antenna to a length corresponding to the switched application function chip after performing the switching of the multi-mode switch; The execution module is configured to perform the switched application function by using the switched application function chip and the adjusted external rod antenna. The device according to claim 6, wherein the device further comprises: an obtaining module, configured to acquire, by the baseband chip, an instruction to switch the application function chip. The device according to claim 6, wherein the control module comprises:

And a control unit configured to switch the multi-mode switch in different application function chips by a high level and a low level of the GPIO pins of the baseband chip. A mobile terminal includes a baseband chip, a multimode switch, and an external whip antenna, wherein

The baseband chip is configured to switch the multi-mode switch in different application function chips by its high and low levels;

The multimode switch is electrically connected to the baseband chip and the external whip antenna, and is configured to couple the different application function chips to the external whip antenna under the control of the baseband chip; as well as

The external whip antenna is arranged to receive signals of different application functions of the mobile terminal by adjusting its length. The mobile terminal according to claim 9, wherein the external whip antenna comprises a multi-section tie rod, and when the multi-section pull rod is in different sections, the external whip antennas respectively correspond to an antenna for realizing an application function.