WO2018166286A1 - 一种外置天线与移动终端的连接使用方法及装置 - Google Patents

一种外置天线与移动终端的连接使用方法及装置 Download PDF

Info

Publication number
WO2018166286A1
WO2018166286A1 PCT/CN2018/071945 CN2018071945W WO2018166286A1 WO 2018166286 A1 WO2018166286 A1 WO 2018166286A1 CN 2018071945 W CN2018071945 W CN 2018071945W WO 2018166286 A1 WO2018166286 A1 WO 2018166286A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
external
universal interface
external antenna
mobile terminal
Prior art date
Application number
PCT/CN2018/071945
Other languages
English (en)
French (fr)
Inventor
王凯
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2018166286A1 publication Critical patent/WO2018166286A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
    • H04B1/0064—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with separate antennas for the more than one band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Definitions

  • the present disclosure relates to, but is not limited to, the field of antenna technology, and in particular, to a method and an apparatus for connecting an external antenna to a mobile terminal.
  • the external antenna can be connected to the end of the RF signal path through the RF connector to realize the space signal and the feeding of the transceiver circuit.
  • the all-metal casing mobile phone and a variety of complex frequency bands are limited by the metal body and ultra-thin shape, making the metal integrated antenna debugging very difficult. It is often necessary to prioritize or trade the many frequency bands according to their importance. Antenna debugging is preferred. Some frequency bands that are required by the carrier network or are actually used in practice are used, and the use of fewer frequency bands will sacrifice to a certain extent. Moreover, limited by different mobile phone styling and radiation efficiency, limited by the mobile phone hardware circuit scheme, sometimes even some key frequency bands can not be adjusted to the ideal state. For example, the main antenna is generally at the lower end of the mobile phone body, and the diversity/GPS antenna is generally at the top of the mobile phone body. These two antenna signals are often prone to problems. After the antenna is debugged, the fuselage structure and the antenna form are basically solidified, and subsequent performance defects cannot be recovered.
  • the above technical conditions will affect the signal perception under weak signals when the user uses the mobile phone.
  • the method can be to connect an external antenna to obtain a good radiation space and improve the performance of the antenna OTA (Over The Air).
  • the external antenna is connected to the end of the RF signal path through the RF connector to realize the space signal and the feeding of the transceiver circuit.
  • This method requires the test socket to be exposed outside, and the mobile phone case needs to be opened.
  • the present disclosure provides a method and apparatus for connecting an external antenna to a mobile terminal, which can implement connection and time division multiplexing of an external antenna on an existing interface of the mobile terminal.
  • the present disclosure provides an external antenna interface device, which is located inside a mobile terminal, and includes: a detection circuit, a control circuit, and a switching circuit, where
  • the detecting circuit is configured to: electrically connect the detecting line of the universal interface with the mobile terminal, and send the potential state of the detecting line to the control circuit;
  • the control circuit is configured to: determine whether the external antenna is inserted into the universal interface according to the potential state, and control the switching circuit to switch the circuit connection manner of the universal interface according to the determination result;
  • the switching circuit is configured to: switch a circuit connection manner of the universal interface to switch the universal interface between a data transmission mode and an antenna operation mode.
  • the detecting circuit includes: a first voltage dividing component, wherein one end of the first voltage dividing component is connected to a weak electric power source in the mobile terminal, and the other end is connected to the detecting circuit of the universal interface. Electrical connection
  • the impedance of the first voltage dividing component and the insertion prompting circuit in the external antenna realizes a voltage division of the weak electric power source, and the detecting circuit exhibits an external antenna Different potential states when plugging in the general interface.
  • control circuit is further configured to: if it is determined that the external antenna is inserted into the universal interface, if the communication quality of the built-in antenna of the mobile terminal is lower than a set threshold, The universal interface switches from the data transmission mode to the antenna operation mode, and receives the radio frequency signal of the external antenna.
  • the switching circuit includes:
  • the first controlled switch is configured to be located in a data transmission line of the universal interface, and under the control of the control circuit, connect the data transmission line of the universal interface with the data transmission line inside the mobile terminal, or The data transmission line is connected to the radio frequency transmission line inside the mobile terminal;
  • the second controlled switch is configured to: connect the radio frequency transmission line inside the mobile terminal to the radio frequency module under the control of the control circuit, or connect the built-in antenna of the mobile terminal with the radio frequency module.
  • control circuit includes: an AP (Application Processor) chip or an audio decoding Codec chip;
  • the universal interface includes: a USB interface or a headphone interface;
  • the external antenna includes: an external main antenna, or an external diversity/GPS antenna.
  • the present disclosure also provides an external antenna, including: a universal interface plug, an external antenna module, and an insertion prompt circuit, wherein
  • the external antenna module is configured to be electrically connected to the data transmission line of the universal interface of the mobile terminal through the universal interface plug;
  • the insertion prompt circuit is configured to be electrically connected to the detection line of the universal interface of the mobile terminal through the universal interface plug, so that the detection line exhibits a different potential state than when the external antenna is not inserted into the universal interface.
  • the insertion prompting circuit includes: a second voltage dividing component, wherein one end of the second voltage dividing component is electrically connected to a detection line of a universal interface of the mobile terminal, and the other end is grounded.
  • the universal interface plug includes: a USB plug or a headphone plug;
  • the external antenna module includes: an external main antenna module, or an external diversity/GPS antenna module.
  • the present disclosure also provides a mobile terminal including the above external antenna interface device.
  • the present disclosure is also based on the foregoing external antenna interface device and an external antenna, and provides a method for connecting an external antenna to a mobile terminal, including:
  • the present disclosure has at least the following advantages:
  • the method and device for using the connection between the external antenna and the mobile terminal according to the present disclosure can make the external antenna function well integrated into the mobile terminal.
  • the universal interface such as the USB and the headphone jack of the mobile terminal functions normally.
  • the original built-in antenna of the mobile terminal also works according to the normal state; when the signal is weak, The user can add an external antenna. At this time, the mobile terminal detects the external antenna access and switches to the external antenna to improve the signal performance.
  • FIG. 1 is a schematic structural diagram of an external antenna interface device according to first and second embodiments of the present disclosure
  • FIG. 2 is a schematic structural diagram of an external antenna according to a third embodiment of the present disclosure.
  • FIG. 3 is a flowchart of a method for using an external antenna and a mobile terminal according to a fourth embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a lower end control circuit of a mobile phone according to a sixth embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of an external main antenna module according to a sixth embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a state detecting circuit 1 according to a sixth embodiment of the present disclosure.
  • FIG. 7 is a block diagram of a lower end system of a mobile phone according to a sixth embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a top control circuit of a mobile phone according to a sixth embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of an external diversity/GPS antenna module according to a sixth embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a state detecting circuit 2 according to a sixth embodiment of the present disclosure.
  • FIG. 11 is a block diagram of a top system of a mobile phone according to a sixth embodiment of the present disclosure.
  • the first embodiment of the present disclosure provides an external antenna interface device, which is located inside the mobile terminal. As shown in FIG. 1, the device includes: a detecting circuit 101, a control circuit 102, and a switching circuit 103.
  • detection circuit 101 is set to: electrically connected to the detection line 105 of the mobile terminal universal interface 104, the potential state of the detection line 105 is sent to the control circuit 102;
  • the control circuit 102 is configured to: determine whether the external antenna is inserted into the universal interface 104 according to the potential state, and control the switching circuit 103 to switch the circuit connection manner of the universal interface 104 according to the determination result;
  • the switching circuit 103 is configured to switch the circuit connection manner of the universal interface 104 to switch the universal interface 104 between the data transmission mode and the antenna operation mode.
  • the detecting circuit 101 includes: a first voltage dividing component, one end of the first voltage dividing component is connected to a weak power source in the mobile terminal, and the other end is electrically connected to the detecting line of the universal interface; optionally
  • the first voltage dividing component is a first resistor that sets a resistance.
  • an impedance of the insertion prompt circuit in the first voltage dividing component and the external antenna implements a voltage division of the weak current power source, and the detection circuit exhibits Different potential states when the external antenna is not inserted into the general-purpose interface.
  • control circuit 102 includes: an AP chip or an audio decoding Codec chip;
  • the universal interface includes: a USB (Universal Serial Bus) interface or a headphone interface;
  • the external antenna includes: an external main antenna, or an external diversity/GPS (Global Position System) antenna.
  • GPS Global Position System
  • the embodiment of the present disclosure uses a universal interface such as a USB and a headphone interface existing in the mobile terminal, so that the external antenna function can be well integrated into the mobile terminal.
  • a universal interface such as a USB and a headphone interface existing in the mobile terminal
  • the universal interface such as the USB and the headphone jack of the mobile terminal functions normally.
  • the original built-in antenna of the mobile terminal also works according to the normal state; when the signal is weak, The user can add an external antenna. At this time, the mobile terminal detects the external antenna access and switches to the external antenna to improve the signal performance.
  • the second embodiment of the present disclosure provides an external antenna interface device, which may be located inside the mobile terminal.
  • the device includes: a detection circuit 101, a control circuit 102, and a switching circuit 103.
  • detection circuit 101 is set to: electrically connected to the detection line 105 of the mobile terminal universal interface 104, the potential state of the detection line 105 is sent to the control circuit 102;
  • the control circuit 102 is configured to: determine whether the external antenna is inserted into the universal interface 104 according to the potential state, and control the switching circuit 103 to switch the circuit connection manner of the universal interface 104 according to the determination result;
  • the switching circuit 103 is configured to switch the circuit connection manner of the universal interface 104 to switch the universal interface 104 between the data transmission mode and the antenna operation mode.
  • the detecting circuit 101 includes: a first voltage dividing component, one end of the first voltage dividing component is connected to a weak power source in the mobile terminal, and the other end is electrically connected to the detecting line of the universal interface; optionally
  • the first voltage dividing component is a first resistor that sets a resistance.
  • an impedance of the insertion prompt circuit in the first voltage dividing component and the external antenna implements a voltage division of the weak current power source, and the detection circuit exhibits Different potential states when the external antenna is not inserted into the general-purpose interface.
  • control circuit 102 includes: an AP chip or an audio decoding Codec chip;
  • the universal interface includes: a USB interface or a headphone interface;
  • the external antenna includes: an external main antenna, or an external diversity/GPS antenna.
  • control circuit 102 is further configured to: if it is determined that the external antenna is inserted into the universal interface 104, if the communication quality of the built-in antenna of the mobile terminal is lower than a set threshold, the universal interface is 104 switches from the data transmission mode to the antenna operation mode, and receives the radio frequency signal of the external antenna.
  • the basis for determining whether to switch from the data transmission mode to the antenna operation mode in this embodiment is based not only on whether the external antenna is inserted into the universal interface, but In the case that it is determined that the external antenna is inserted into the universal interface, the communication quality of the built-in antenna of the mobile terminal is combined with poor communication quality, so that the universal interface can be switched from the data transmission mode to the antenna working mode, thereby avoiding the signal strength of the built-in antenna. Under normal circumstances, the unnecessary internal and external antenna switching caused by inserting the external antenna into the communication interface of the mobile terminal makes the mobile terminal system work more stably.
  • the switching circuit 103 includes:
  • the first controlled switch is configured to be located in the data transmission line of the universal interface 104, and under the control of the control circuit 102, connect the data transmission line of the universal interface 104 with the data transmission line inside the mobile terminal. Or, the data transmission line of the universal interface 104 is connected to the radio frequency transmission line inside the mobile terminal; wherein the number of data transmission lines of the universal interface 104 is one or more;
  • the second controlled switch is configured to: connect the radio frequency transmission line inside the mobile terminal to the radio frequency module under the control of the control circuit 102, or connect the built-in antenna of the mobile terminal with the radio frequency module.
  • Another difference between the embodiment of the present disclosure and the first embodiment is that two controlled switches are used in the switching circuit 103 in the embodiment, respectively, and are controlled by the control circuit 102, and the first controlled switch can be guaranteed to be in use.
  • the external antenna is completely disconnected from the data transmission line of the universal interface 104 and the data transmission line inside the mobile terminal, the external antenna is not affected by the original data transmission circuit in the universal interface 104, but is restored to After the original data transmission function of the universal interface 104, the connection between the universal interface 104 and the radio frequency transmission line in the mobile terminal can be completely cut off.
  • the embodiment of the present disclosure synchronizes with the first controlled switch by the second controlled switch, and the second controlled switch connects the radio frequency transmission line inside the mobile terminal with the radio frequency module under the control of the control circuit 102. Or the internal antenna of the mobile terminal is connected to the radio frequency module, so that the two working modes of the universal interface 104 are time-multiplexed and do not affect each other.
  • the third embodiment of the present disclosure provides an external antenna, as shown in FIG. 2, including: a universal interface plug 201, an external antenna module 202, and an insertion prompt circuit 203, wherein
  • the external antenna module 202 is configured to be electrically connected to the data transmission line of the universal interface of the mobile terminal through the universal interface plug 201;
  • the insertion prompt circuit 203 is configured to be electrically connected to the detection line of the universal interface of the mobile terminal through the universal interface plug 201 so that the detection line exhibits a different potential state than when the external antenna is not inserted into the universal interface.
  • the insertion prompt circuit 203 includes: a second voltage dividing component, wherein one end of the second voltage dividing component is electrically connected to a detection line of a universal interface of the mobile terminal, and the other end is grounded.
  • the second voltage dividing element may be a second resistor that sets a resistance.
  • the universal interface plug includes: a USB plug or a headphone plug;
  • the external antenna module includes: an external main antenna module, or an external diversity/GPS antenna module.
  • the external antenna of the embodiment of the present disclosure has a plug adapted to a universal interface of the mobile terminal, that is, a universal interface plug, so that the external antenna function can be well integrated into the mobile terminal.
  • the external antenna of the embodiment further includes an insertion prompt circuit 203, and the universal interface plug 201 is electrically connected to the detection line of the universal interface of the mobile terminal, so that the detection line is presented with an external antenna.
  • Different potential states are inserted when the universal interface is inserted, so that the external antenna interface device located in the mobile terminal can determine whether an external antenna is inserted by detecting the potential state of the detection line of the universal interface of the mobile terminal.
  • the fourth embodiment of the present disclosure provides a mobile terminal, which includes the external antenna interface device described in the first and second embodiments, and is used in conjunction with the external antenna of the third embodiment.
  • the embodiment of the present disclosure uses a universal interface such as a USB and a headphone interface existing in the mobile terminal, the external antenna function can be well integrated into the mobile terminal.
  • the universal interface such as the USB and the headphone jack of the mobile terminal functions normally.
  • the original built-in antenna of the mobile terminal also works according to the normal state; when the signal is weak, The user can add an external antenna. At this time, the mobile terminal detects the external antenna access and switches to the external antenna to improve the signal performance.
  • the fifth embodiment of the present disclosure provides a connection and use method of the external antenna and the mobile terminal based on the external antenna interface device in the first and second embodiments and the external antenna in the third embodiment, as shown in FIG. Show, including the following steps:
  • Step S301 detecting a potential state at a detection line of a universal interface of the mobile terminal
  • Step S302 determining whether the external antenna is inserted into the universal interface according to the detected potential state, and controlling the universal interface to switch between the data transmission mode and the antenna working mode according to the determination result.
  • step S302 further includes:
  • the universal interface When it is determined that the external antenna is inserted into the universal interface, if the communication quality of the built-in antenna of the mobile terminal is lower than a set threshold, the universal interface is switched from the data transmission mode to the antenna working mode, and the external antenna is received. RF signal.
  • the sixth embodiment of the present disclosure is based on the above-mentioned embodiment. Taking the USB interface and the earphone interface of the mobile phone as an example, an application example of the present disclosure will be described with reference to FIGS. 4 to 11.
  • Embodiments of the present disclosure provide a connection identification control apparatus for an external antenna and a mobile phone terminal.
  • the external antenna may include an external main antenna or an external diversity/GPS antenna.
  • the external antenna in the embodiment of the present disclosure may be in the form of a general mobile phone case or a miniaturized external antenna card fastener.
  • the lower end of the mobile phone terminal of the embodiment of the present disclosure may have a USB interface and a main antenna, and the top end may have a headphone jack and a diversity/GPS antenna.
  • the external main antenna according to the embodiment of the present disclosure may have a USB plug, and the external diversity/GPS antenna described in the embodiment of the present disclosure may have a headphone plug.
  • the embodiment of the present disclosure combines an external main antenna link and a USB communication link inherent to a mobile phone, and adds a small number of switches and detection circuits, thereby ensuring normal USB communication functions and enabling the mobile phone to selectively be in an external main antenna. Flexible switching between mode and built-in main antenna mode. Similarly, the embodiments of the present disclosure combine the external diversity/GPS antenna link with the earphone audio link inherent in the mobile phone, and add a small number of switches and detection circuits to ensure the function of the normal earphone jack and the mobile phone selectively. Flexible switching between external diversity/GPS antenna mode and built-in diversity/GPS antenna mode. Therefore, embodiments of the present disclosure include a mobile phone lower device and a mobile phone top device. The embodiment of the present disclosure realizes the identification of the external antenna insertion action by the detection circuit on the mobile terminal side.
  • the mobile phone lower device embodiment (external main antenna + USB interface + built-in main antenna)
  • the external main antenna module may be connected to a USB jack at the lower end of the mobile phone terminal motherboard through a USB plug to implement an external main antenna unit and a PCB (Printed Circuit). Board, printed circuit board) electrical connection, the external main antenna module can be equipped with a USB head, can share the same USB interface on the mobile phone motherboard with the general USB cable or OTG (On-The-Go abbreviation) device.
  • the main antenna at the lower end of the mobile phone terminal can also be designed with an external antenna branch.
  • the external main antenna signal line and a data line DP (or DM) of the USB interface of the lower end of the mobile phone motherboard can be switched by an SP2T RF switch (first SP2T switch); the external main antenna signal path and the built-in main antenna signal path can be Switching through another SP2T RF switch (first SP2T switch); at the same time, two SP2T switches can be cascaded to realize time division multiplexing of an external main antenna signal line and a data line DP (or DM) of the USB interface, and Switching between external antenna and built-in antenna.
  • DP is the USB data line D+ (green line)
  • DM is the USB data line D- (white line).
  • the external main antenna module of the embodiment of the present disclosure may be configured with a USB head, a data line pin foot DP (or DM) of the USB head is connected to the external antenna unit, and another data line DM (or DP) is connected. Then, the USB head's USB_ID detection line pin is connected to a fixed value of the voltage dividing resistor R1, the other end of the resistor is grounded, and the GND pin of the USB head is connected to the main ground of the external main antenna module.
  • the USB_ID detection line on the main board of the mobile phone terminal according to the embodiment of the present disclosure is pulled up to the “high impedance state” through the resistor R2, and the detection circuit is connected with the USB_ID signal on the mobile phone main board, where the detection circuit is divided into general GPIO (General- Purpose Input/Output Ports and ADC (Analog-to-Digital Converter) are two types of detection.
  • general GPIO General- Purpose Input/Output Ports
  • ADC Analog-to-Digital Converter
  • the resistor R1 and the resistor R2 form a voltage dividing circuit, and the ADC detection circuit on the main board detects that the “intermediate resistance state” is reported to the AP chip, and the system is It is determined that the external main antenna module is inserted.
  • the first SP2T switch hits the side of the external main antenna signal path, and the USB data path is disconnected; at this time, the second SP2T switch also hits the side of the external main antenna signal path. The built-in main antenna signal path is disconnected, so the system is in the external main antenna operating mode.
  • USB_ID detection line When a general USB cable or OTG device is inserted into the USB jack of the lower end of the mobile phone, the USB_ID detection line is pulled low, and the GPIO on the motherboard detects a "low resistance state", and the system determines that the normal USB cable or the OTG device is inserted.
  • the SP2T switch hits the USB data path, and the external main antenna signal path is disconnected; at this time, the second SP2T switch hits the side of the built-in main antenna path, and the external main antenna path is disconnected, so the system is in the built-in main antenna and normal. USB interface working mode.
  • the lower end control circuit of the mobile phone terminal described in the embodiment of the present disclosure is as shown in FIG. 4, and the USB connection base generally defines five signal lines: only the two lines of the data line USB_DP and the detection line USB_ID_DET are modified here. The other three lines do not change. Look at the signal name in the figure.
  • the signal line USB_DP/RF is shared between the USB_DP and the RF signal. After the first SP2T switch is divided into USB_DP and RF, the USB_DP re-connects with the USB_DM to the AP chip, and the RF signal goes to the second SP2T switch.
  • the path A, the first SP2T and the second SP2T are cascaded, and the branch B of the second SP2T is connected to the built-in main antenna.
  • the external main antenna module described in the embodiment of the present disclosure may be as shown in FIG. 5, and five signal lines are also defined on the USB plug: only the data line USB_DP/RF, the detection line USB_ID_DET, and the signal ground GND are used here. Three lines, the other two lines are suspended.
  • the detection line Antenna_ID_DET is grounded via a fixed value resistor R1, and the USB_DP/RF is connected to an external antenna unit.
  • the USB socket of the external main antenna module and the USB connector of the mobile phone motherboard are exactly the same.
  • the state detecting circuit 1 may be as shown in FIG. 6.
  • the USB_ID_DET is pulled up by the fixed value resistor R2, and the USB_ID_DET detection line has both GPIO and ADC detection capabilities.
  • the GPIO1 is connected to the AP chip. Connected to the PMIC (Power Management Integrated Circuit) chip through ADC1.
  • the resistors R1 and R2 form a voltage dividing circuit.
  • the USB_ID_DET presents an "intermediate resistance state"
  • the ADC1 detection line detects the “intermediate resistance state” and reports it to the PMIC chip, and the system determines The external antenna module is inserted, thereby controlling the first SP2T and the second SP2T switch action, and the mobile phone switches to the external main antenna working mode.
  • the USB_DP signal line is disconnected, and the built-in main antenna link is disconnected.
  • the USB_ID_DET presents a "low-resistance state”.
  • GPIO1 detects the "low-resistance state” and reports it to the AP chip.
  • the system determines that the USB cable or OTG device is inserted.
  • the first SP2T switch And the second SP2T switch defaults to the built-in main antenna and normal USB interface operating mode.
  • mobile phone top device embodiment (external diversity / GPS antenna + headphone jack + built-in diversity / GPS antenna)
  • the external diversity/GPS antenna module may be connected to a headphone jack at the top of the mobile phone terminal motherboard through a headphone plug to implement an external diversity/GPS antenna unit and
  • the electrical connection of the PCB, the external diversity / GPS antenna module can be equipped with a headphone plug, and the general headphone cable or audio equipment can share the same headphone jack on the mobile phone motherboard.
  • the diversity/GPS antenna at the top of the mobile terminal can also be designed with an external antenna branch.
  • An external diversity/GPS antenna signal cable and an audio cable HPH_R (or HPH_L) on the top of the phone motherboard can be switched by an SP2T RF switch (third SP2T switch); external diversity / GPS antenna signal path and built-in diversity /
  • the GPS antenna signal path can be switched by another SP2T RF switch (fourth SP2T switch); at the same time, two SP2T switches can be cascaded to realize an external diversity/GPS antenna signal line and an audio line HPH_R of the headphone interface (or HPH_L) Time division multiplexing, and switching between external antennas and built-in antennas.
  • HPH_L can be the left channel of the headphone audio line
  • HPH_R can be the right channel of the headphone audio line.
  • An external diversity/GPS antenna may be configured with an earphone plug, an audio line HPH_R (or HPH_L) pin of the earphone plug is connected to the external diversity/GPS antenna unit, and the other audio line HPH_L (or HPH_R) is left floating, the HPH_DET detection line pin of the headphone plug is connected to a fixed value resistor R3, the other end of the resistor is grounded, and the GND pin of the headphone plug is connected to the main of the external diversity/GPS antenna module. Ground.
  • the earphone detection line HPH_DET on the main board of the mobile phone terminal according to the embodiment of the present disclosure is pulled up to the “high resistance state” through the resistor R4, and the detection circuit is connected with the HPH_DET signal on the mobile phone main board, where the detection circuit is divided into a general GPIO and an ADC. Two are detected.
  • the resistor R3 and the resistor R4 form a voltage dividing circuit, and the ADC detection circuit on the main board detects the “intermediate resistance state” and reports it to the Codec chip. The system determines that the external diversity/GPS antenna module is inserted.
  • the third SP2T switch hits the side of the external diversity/GPS antenna signal path, and the audio channel of the earphone is disconnected; at this time, the fourth SP2T switch is also externally connected.
  • the diversity/GPS antenna signal path is on one side, while the built-in diversity/GPS antenna signal path is broken, so the system is in the external diversity/GPS antenna mode of operation.
  • the HPH_DET detection line is pulled low, the GPIO on the main board detects the "low resistance state", and the system determines that the normal earphone or audio device is inserted.
  • the third SP2T The switch hits the headphone audio path, and the external diversity/GPS antenna signal path is broken; at this time, the fourth SP2T switch hits the side of the built-in diversity/GPS antenna path, and the external diversity/GPS antenna path is disconnected, so the system is in Built-in diversity/GPS antenna and normal headphone interface operating mode.
  • the above “high resistance state” can be defined as 1.8V
  • the “low resistance state” can be defined as 0.5V or less
  • the “intermediate resistance state” can be defined as about 1V.
  • the top end circuit of the mobile phone terminal described in the embodiment of the present disclosure may be as shown in FIG. 8.
  • the earphone connection base generally defines five signal lines: only the two lines of the audio line HPH_R and the detection line HPH_DET are modified here. The other three lines do not change.
  • the signal line HPH_R/RF is shared by HPH_R and RF signal.
  • HPH_R re-pairs with HPH_L to codec chip
  • the RF signal goes to the fourth SP2T switch.
  • Road A the third SP2T and the fourth SP2T are cascaded, and the branch SP of the fourth SP2T is connected to the built-in diversity/GPS antenna.
  • the external diversity/GPS module described in the embodiment of the present disclosure can be as shown in FIG. 9, and five signal lines are also defined on the earphone plug.
  • the signal line HPH_R/RF, the detection line HPH_DET, and the signal ground GND are used. Three lines, the other two lines are suspended.
  • Antenna_ID_DET is grounded via a fixed value resistor R3 and HPH_R/RF is connected to an external diversity/GPS antenna unit.
  • the headphone plug of the external diversity/GPS antenna module and the headphone jack pin line sequence on the mobile phone motherboard are exactly the same.
  • the state detecting circuit 2 may be as shown in FIG. 10, HPH_DET is pulled up by a fixed value resistor R4, and the HPH_DET detection line has both GPIO and ADC detection capabilities, and on the one hand, the GPIO2 is connected to the codec chip. Connect to the codec chip via ADC2.
  • the resistors R3 and R4 form a voltage dividing circuit.
  • the “intermediate resistance state” is displayed on the HPH_DET, and the “intermediate resistance state” is detected by the ADC2 detection line and reported to the coedc chip.
  • the system determines that the external diversity/GPS antenna module is inserted, thereby controlling the third SP2T and the fourth SP2T switch action, and the mobile phone switches to the external diversity/GPS antenna working mode, at which time the HPH_R signal line is disconnected, and the built-in diversity/GPS The antenna link is broken.
  • the HPH_DET presents a "low-resistance state"
  • the GPIO2 detects the "low-resistance state” and reports it to the AP chip.
  • the system determines that the headphone cable or other audio device is inserted.
  • the SP2T switch and the fourth SP2T switch default to the built-in diversity/GPS antenna and normal headphone interface operating modes.
  • the user can choose to use an external antenna or an internal antenna according to the quality of the existing network signal.
  • the user can quickly and flexibly switch between the built-in/external antenna without affecting the overall shape of the mobile phone, thereby significantly improving the mobile phone signal experience.
  • Embodiments of the present disclosure relate to a mobile phone terminal device, and a method for connecting an external antenna and a mobile phone terminal, and an external antenna identification and control method.
  • the mobile phone has a USB interface and a headphone jack.
  • the USB interface is naturally close to the main antenna at the lower end of the mobile phone.
  • the headphone jack is naturally close to the diversity/GPS antenna at the top of the mobile phone. With this nearby convenience, the mobile terminal in the present disclosure will be one.
  • the external antenna signal line (such as the main antenna of the lower end of the mobile phone) and the USB interface signal line are multiplexed, and another external antenna signal line (such as the GPS antenna or diversity antenna of the mobile phone) and the headphone jack signal line are multiplexed through the USB interface.
  • the headphone jack enables the connection of two key external antennas and hardware circuits without changing the original shape of the phone.
  • the USB port of the mobile phone in the embodiment of the present disclosure can meet the time division switching of the USB communication and the antenna signal transmission, and the earphone jack in the embodiment of the present disclosure can satisfy the time division switching of the audio transmission and the antenna signal transmission.
  • the mobile phone terminal of the embodiment of the present disclosure can identify whether the current USB port is an OTG device or an external antenna device.
  • the mobile phone terminal of the embodiment of the present disclosure can identify whether the earphone jack is an earphone or an external antenna.
  • the internal circuit board of the mobile phone terminal of the embodiment of the present disclosure can complete the switching between the external main antenna signal line and the USB communication line of the lower end of the mobile phone through an SP2T switch, and can also complete the external main antenna signal and the built-in main antenna through another SP2T switch. Signal switching.
  • the internal circuit board of the mobile phone terminal of the embodiment of the present disclosure can complete the switching between the external diversity of the mobile phone top/GPS antenna signal line and the earphone signal line through an SP2T switch, and can also complete the external diversity/GPS antenna signal through another SP2T switch. Switching with built-in diversity/GPS antenna signals.
  • the mobile phone terminal in the embodiment of the present disclosure may further include two state detecting circuits, which are respectively configured to perform USB interface insertion detection and earphone interface insertion detection, and the detection circuit includes two types of general GPIO and ADC.
  • the mobile phone terminal of the embodiment of the present disclosure in combination with the external antenna member of the embodiment of the present disclosure, can make the external antenna function well integrated into the mobile phone terminal.
  • the USB and headphone jacks of the mobile phone function normally.
  • the original built-in antenna of the mobile phone also works according to the normal state; when the signal is weak, the user can add the outside. Set the antenna unit. At this time, the mobile phone detects the external antenna access and switches to the external antenna to improve the signal performance.
  • the method and device for using the connection between the external antenna and the mobile terminal according to the present disclosure can make the external antenna function well integrated into the mobile terminal.
  • the universal interface such as the USB and the headphone jack of the mobile terminal functions normally.
  • the original built-in antenna of the mobile terminal also works according to the normal state; when the signal is weak, The user can add an external antenna. At this time, the mobile terminal detects the external antenna access and switches to the external antenna to improve the signal performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Function (AREA)

Abstract

一种外置天线接口装置，位于移动终端内部，包括：检测电路，设置为：与移动终端通用接口的检测线路电连接，将所述检测线路的电位状态发送给控制电路；控制电路，设置为：根据所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制切换电路对所述通用接口的电路连接方式进行切换；切换电路，设置为：切换所述通用接口的电路连接方式，以使所述通用接口在数据传输模式和天线工作模式之间切换。

Description

一种外置天线与移动终端的连接使用方法及装置 技术领域
本公开涉及但不限于天线技术领域，尤其是一种外置天线与移动终端的连接使用方法及装置。
背景技术
连接外置天线，可以是将外置天线通过射频连接器串接到射频信号通路末端，实现空间信号和收发机电路的馈电。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
全金属外壳手机以及多种复杂频段组合，受限于金属机身以及超薄造型，使得金属一体化天线调试难度极大，往往需要对众多频段按照重要性进行优先级排序或取舍，天线调试优先保证运营商网络要求的或者实际中较常用到的一些频段，而使用较少的频段会做一定程度的牺牲。而且，受限于不同的手机造型和辐射效率，受限于手机硬件电路方案，有时候甚至会遇到一些重点频段无法调到理想状态的情况。例如主天线一般在手机机身下端，分集/GPS天线一般在手机机身顶端，这两个天线信号往往容易出问题。通过调试天线后，机身结构和天线形式基本固化，后续如果存在性能缺陷将无法重来。
上述技术状况会影响用户使用手机时弱信号下的信号感受。如果出现天线指标缺陷，已经发货的手机将很难找到根本的改进措施。办法可以是连接外置天线以获得良好的辐射空间，提升天线OTA(Over The Air，空口测试)性能。例如，将外置天线通过射频连接器串接到射频信号通路末端，实现空间信号和收发机电路的馈电，这种方法需要将测试座裸露在外面，手机壳上需要开孔。采用外置天线时，需要较好地实现天线小型化、天线与手机壳体 装配、与硬件电路板连接。
本公开提供一种外置天线与移动终端的连接使用方法及装置，能够在移动终端已有的接口上实现外置天线的连接和分时复用。
本公开提供一种外置天线接口装置，位于移动终端内部，所述装置包括：检测电路、控制电路和切换电路，其中，
检测电路，设置为：与移动终端通用接口的检测线路电连接，将所述检测线路的电位状态发送给控制电路；
控制电路，设置为：根据所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制切换电路对所述通用接口的电路连接方式进行切换；
切换电路，设置为：切换所述通用接口的电路连接方式，以使所述通用接口在数据传输模式和天线工作模式之间切换。
在一种示例性实施方式中，所述检测电路，包括：第一分压元件，设置为所述第一分压元件的一端与移动终端内的弱电电源相连，另一端与通用接口的检测线路电连接；
当外置天线插入所述通用接口时，所述第一分压元件与外置天线中的插入提示电路的阻抗实现对所述弱电电源的分压，所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
在一种示例性实施方式中，所述控制电路，还设置为：在判定外置天线插入所述通用接口的情况下，若移动终端内置天线的通信质量低于设定的阈值，则将所述通用接口从数据传输模式切换到天线工作模式，并接收外置天线的射频信号。
在一种示例性实施方式中，所述切换电路，包括：
第一受控开关，设置为：位于通用接口的数据传输线路中，在所述控制电路的控制下，将通用接口的数据传输线路与移动终端内部的数据传输线路连通，或者，将通用接口的数据传输线路与移动终端内部的射频传输线路连通；
第二受控开关，设置为：在所述控制电路的控制下，将移动终端内部的射频传输线路与射频模块连通，或者，将移动终端内置天线与射频模块连通。
在一种示例性实施方式中，所述控制电路，包括：AP(Application Processor，应用处理器)芯片或者音频解码Codec芯片；
所述通用接口，包括：USB接口或者耳机接口；
所述外置天线包括：外置主天线，或者，外置分集/GPS天线。
本公开还提供一种外置天线，包括：通用接口插头、外置天线模块、插入提示电路，其中，
外置天线模块，设置为：通过所述通用接口插头与移动终端的通用接口的数据传输线路电连接；
插入提示电路，设置为：通过所述通用接口插头与移动终端的通用接口的检测线路电连接，以使所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
在一种示例性实施方式中，所述插入提示电路，包括：第二分压元件，设置为所述第二分压元件的一端与移动终端的通用接口的检测线路电连接，另一端接地。
在一种示例性实施方式中，所述通用接口插头，包括：USB插头或者耳机插头；
所述外置天线模块包括：外置主天线模块，或者，外置分集/GPS天线模块。
本公开还提供一种移动终端，包括上述外置天线接口装置。
本公开还基于上述外置天线接口装置和外置天线，提供一种外置天线与移动终端的连接使用方法，包括：
对移动终端通用接口的检测线路处的电位状态进行检测；
根据检测到的所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制所述通用接口在数据传输模式和天线工作模式之间切换。
采用上述技术方案，本公开至少具有下列优点：
本公开所述外置天线与移动终端的连接使用方法及装置，可以使得外置天线功能很好地融入移动终端中。用户在实际使用中，当信号正常时无需加装外置天线，移动终端的USB和耳机插孔等通用接口发挥正常功能，移动终端原有内置天线也按照正常状态工作；当弱信号场景下，用户可以加上外置天线，这时候移动终端检测到外置天线接入，切换到外置天线工作，以提高信号性能。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本公开第一、二实施例的外置天线接口装置的组成结构示意图；
图2为本公开第三实施例的外置天线的组成结构示意图；
图3为本公开第四实施例的外置天线与移动终端的连接使用方法流程图；
图4为本公开第六实施例的手机下端控制电路示意图；
图5为本公开第六实施例的外置主天线模块示意图；
图6为本公开第六实施例的状态检测电路1的示意图；
图7为本公开第六实施例的手机下端系统框图；
图8为本公开第六实施例的手机顶端控制电路示意图；
图9为本公开第六实施例的外置分集/GPS天线模块示意图；
图10为本公开第六实施例的状态检测电路2的示意图；
图11为本公开第六实施例的手机顶端系统框图。
本公开的较佳实施方式
下面结合附图对本公开的实施方式进行描述。
本公开第一实施例提供一种外置天线(antenna)接口装置，位于移动终端内部，如图1所示，所述装置包括：检测电路101、控制电路102和切换电路103，其中，
1)检测电路101，设置为：与移动终端通用接口104的检测线路105电连接，将所述检测线路105的电位状态发送给控制电路102；
2)控制电路102，设置为：根据所述电位状态判断外置天线是否插入所述通用接口104，并根据判断结果控制切换电路103对所述通用接口104的电路连接方式进行切换；
3)切换电路103，设置为：切换所述通用接口104的电路连接方式，以使所述通用接口104在数据传输模式和天线工作模式之间切换。
可选地，所述检测电路101，包括：第一分压元件，所述第一分压元件的一端与移动终端内的弱电电源相连，另一端与通用接口的检测线路电连接；可选地，第一分压元件为设定阻值的第一电阻。
可选地，当外置天线插入所述通用接口时，所述第一分压元件与外置天线中的插入提示电路的阻抗实现对所述弱电电源的分压，所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
可选地，所述控制电路102，包括：AP芯片或者音频解码Codec芯片；
所述通用接口，包括：USB(Universal Serial Bus，通用串行总线)接口或者耳机接口；
所述外置天线包括：外置主天线，或者，外置分集/GPS(Global Position System，全球定位系统)天线。
本公开实施例使用了移动终端已有的USB和耳机接口等通用接口，可以使得外置天线功能很好地融入移动终端中。用户在实际使用中，当信号正常时无需加装外置天线，移动终端的USB和耳机插孔等通用接口发挥正常功能，移动终端原有内置天线也按照正常状态工作；当弱信号场景下，用户可以加上外置天线，这时候移动终端检测到外置天线接入，切换到外置天线工作，以提高信号性能。
本公开第二实施例提供一种外置天线接口装置，可以位于移动终端内部，如图1所示，所述装置包括：检测电路101、控制电路102和切换电路103，其中，
1)检测电路101，设置为：与移动终端通用接口104的检测线路105电连接，将所述检测线路105的电位状态发送给控制电路102；
2)控制电路102，设置为：根据所述电位状态判断外置天线是否插入所述通用接口104，并根据判断结果控制切换电路103对所述通用接口104的 电路连接方式进行切换；
3)切换电路103，设置为：切换所述通用接口104的电路连接方式，以使所述通用接口104在数据传输模式和天线工作模式之间切换。
可选地，所述检测电路101，包括：第一分压元件，所述第一分压元件的一端与移动终端内的弱电电源相连，另一端与通用接口的检测线路电连接；可选地，第一分压元件为设定阻值的第一电阻。
可选地，当外置天线插入所述通用接口时，所述第一分压元件与外置天线中的插入提示电路的阻抗实现对所述弱电电源的分压，所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
可选地，所述控制电路102，包括：AP芯片或者音频解码Codec芯片；
所述通用接口，包括：USB接口或者耳机接口；
所述外置天线包括：外置主天线，或者，外置分集/GPS天线。
可选地，所述控制电路102，还设置为：在判定外置天线插入所述通用接口104的情况下，若移动终端内置天线的通信质量低于设定的阈值，则将所述通用接口104从数据传输模式切换到天线工作模式，并接收外置天线的射频信号。
本公开实施例与第一实施例的区别之一，就在于本实施例中判断是否需要从数据传输模式切换到天线工作模式的依据不仅是根据外置天线是否插入所述通用接口了，而是需要在判定外置天线插入所述通用接口的情况下，结合移动终端内置天线的通信质量不佳，才能将所述通用接口从数据传输模式切换到天线工作模式，这样能够避免在内置天线信号强度正常的情况下，由于将外置天线插入移动终端的通信接口而导致的不必要的内外天线切换，使移动终端系统工作得更加稳定。
可选地，所述切换电路103，包括：
第一受控开关，设置为：位于所述通用接口104的数据传输线路中，在所述控制电路102的控制下，将所述通用接口104的数据传输线路与移动终端内部的数据传输线路连通，或者，将所述通用接口104的数据传输线路与移动终端内部的射频传输线路连通；其中，所述通用接口104的数据传输线路的数量为一条或多条；
第二受控开关，设置为：在所述控制电路102的控制下，将移动终端内 部的射频传输线路与射频模块连通，或者，将移动终端内置天线与射频模块连通。
本公开实施例与第一实施例的另一个区别，就在于本实施例中的切换电路103中使用了两个受控开关，分别接受控制电路102的控制，第一受控开关能够保证在使用外置天线时彻底切断所述通用接口104的数据传输线路与移动终端内部的数据传输线路的连接，使得外置天线工作时不会受到通用接口104中原本数据传输电路的影响，而在恢复到通用接口104的原本数据传输功能后，又能完全切断通用接口104与移动终端内的射频传输线路的连接。另一方面，本公开实施例通过第二受控开关与第一受控开关同步动作，第二受控开关在所述控制电路102的控制下，将移动终端内部的射频传输线路与射频模块连通或者将移动终端内置天线与射频模块连通，使得通用接口104的两种工作模式分时复用、互相不影响。
本公开第三实施例提供一种外置天线，如图2所示，包括：通用接口插头201、外置天线模块202、插入提示电路203，其中，
外置天线模块202，设置为：通过所述通用接口插头201与移动终端的通用接口的数据传输线路电连接；
插入提示电路203，设置为：通过所述通用接口插头201与移动终端的通用接口的检测线路电连接，以使所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
可选地，所述插入提示电路203，包括：第二分压元件，设置为所述第二分压元件的一端与移动终端的通用接口的检测线路电连接，另一端接地。第二分压元件可以为设定阻值的第二电阻。
可选地，所述通用接口插头，包括：USB插头或者耳机插头；
所述外置天线模块包括：外置主天线模块，或者，外置分集/GPS天线模块。
本公开实施例的外置天线具备与移动终端的通用接口适配的插头，即通用接口插头，可以使得外置天线功能很好地融入移动终端中。另外，本实施例的外置天线中还设有插入提示电路203，通过所述通用接口插头201与移动终端的通用接口的检测线路电连接，以使所述检测线路呈现出与外置天线 未插入通用接口时不同的电位状态，从而使位于移动终端中的外置天线接口装置能够通过检测移动终端通用接口的检测线路的电位状态来判断是否有外置天线插入。
本公开第四实施例提供一种移动终端，包括上述第一、二实施例所述的外置天线接口装置，配合第三实施例的外置天线使用。
由于本公开实施例使用了移动终端已有的USB和耳机接口等通用接口，可以使得外置天线功能很好地融入移动终端中。用户在实际使用中，当信号正常时无需加装外置天线，移动终端的USB和耳机插孔等通用接口发挥正常功能，移动终端原有内置天线也按照正常状态工作；当弱信号场景下，用户可以加上外置天线，这时候移动终端检测到外置天线接入，切换到外置天线工作，以提高信号性能。
本公开第五实施例，基于第一、二实施例中的外置天线接口装置和第三实施例中的外置天线，提供一种外置天线与移动终端的连接使用方法，如图3所示，包括以下步骤：
步骤S301，对移动终端通用接口的检测线路处的电位状态进行检测；
步骤S302，根据检测到的所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制所述通用接口在数据传输模式和天线工作模式之间切换。
可选地，所述方法，在步骤S302中，还包括：
在判定外置天线插入所述通用接口的情况下，若移动终端内置天线的通信质量低于设定的阈值，则将所述通用接口从数据传输模式切换到天线工作模式，并接收外置天线的射频信号。
本公开第六实施例，本实施例是在上述实施例的基础上，以手机的USB接口和耳机接口为例，结合附图4至11介绍一个本公开的应用实例。
本公开实施例提出一种外置天线与手机终端的连接识别控制装置。所述外置天线可以包括：外置主天线，或者，外置分集/GPS天线。本公开实施例中的外置天线可以做成一般的手机套形式，或者做成小型化的外置天线卡扣 件。
本公开实施例所述手机终端下端可以有USB接口和主天线，顶端可以有耳机插孔和分集/GPS天线。本公开实施例所述的外置主天线上可以有一个USB插头，本公开实施例所述的外置分集/GPS天线上可以有一个耳机插头。
本公开实施例通过将外置主天线链路和手机固有的USB通讯链路结合在一起，外加少量开关和检测电路，既能保证正常USB通讯功能，又能使手机选择性地在外置主天线模式和内置主天线模式之间灵活切换。同样，本公开实施例通过将外置分集/GPS天线链路和手机固有的耳机音频链路结合在一起，外加少量开关和检测电路，既能保证正常耳机插孔功能，又能使手机选择性地在外置分集/GPS天线模式和内置分集/GPS天线模式之间灵活切换。因此，本公开实施例包括手机下端装置和手机顶端装置两部分。本公开实施例通过手机终端一侧的检测电路实现对外置天线插入动作的识别。
一、手机下端装置实施例(外置主天线+USB接口+内置主天线)
如图4至7所示，本公开实施例所述的外置主天线模块可以通过一个USB插头连接到所述手机终端主板下端的USB插孔上，实现外置主天线单元和PCB(Printed Circuit Board，印刷电路板)的电连接，外置主天线模块上可以配有一个USB头，可以和一般USB线或者OTG(On-The-Go的缩写)设备共用手机主板上同一个USB接口。所述手机终端下端的主天线除了基本的内置天线信号路径之外，还可以设计了外置天线分支。外置主天线信号线和手机主板下端USB接口的一根数据线DP(或DM)可以通过一个SP2T射频开关(第一SP2T开关)切换；外置主天线信号通路和内置主天线信号通路又可以通过另一个SP2T射频开关(第一SP2T开关)切换；同时，两个SP2T开关可以级联，实现外置主天线信号线和USB接口的一根数据线DP(或DM)分时复用，以及外置天线和内置天线的切换。其中，DP是USB的数据线D+(绿色线)，DM是USB的数据线D-(白色线)。
本公开实施例所述的外置主天线模块上可以配置一个USB头，USB头的一根数据线pin脚DP(或DM)连接到外置天线单元，另一根数据线DM(或DP)则悬空，USB头的USB_ID检测线pin脚连接到一个固定阻值的分压电阻R1，电阻的另一端接地，USB头的GND管脚连接到外置主天线模块的主地。
本公开实施例所述的手机终端主板上的USB_ID检测线通过电阻R2上拉到“高阻状态”，手机主板上设计了检测电路和USB_ID信号相连，这里的检测电路分一般的GPIO(General-Purpose Input/Output Ports，通用输入/输出端口)和ADC(Analog-to-Digital Converter，模数转换器)检测两种。当本公开实施例所述的外置主天线模块插入手机下端USB插孔时，电阻R1和电阻R2形成分压电路，主板上ADC检测电路检测到“中间阻态”上报给AP芯片，系统则判定为外置主天线模块插入，这时候第一SP2T开关打到外置主天线信号通路一侧，而USB数据通路断开；这时候第二SP2T开关也打到外置主天线信号通路一侧，而内置主天线信号通路断开，于是系统处于外置主天线工作模式。当一般USB线或OTG设备插入手机下端USB插孔时，USB_ID检测线被拉低，主板上的GPIO检测到“低阻状态”，系统则判定为正常USB线或OTG设备插入，这时候第一SP2T开关打到USB数据通路，而外置主天线信号通路断开；这时候第二SP2T开关打到内置主天线通路一侧，而外置主天线通路断开，于是系统处于内置主天线和正常USB接口工作模式。
可选地，本公开实施例中所述的手机终端下端控制电路如图4所示，USB连接座通常定义5根信号线：这里只对数据线USB_DP和检测线USB_ID_DET这两根线做修改，其他三根线不做任何变动。看图中的信号名，信号线USB_DP/RF给USB_DP和RF信号共用，经过第一SP2T开关分成USB_DP和RF两路后，USB_DP重新和USB_DM成对走向AP芯片，RF信号走向第二SP2T开关支路A，第一SP2T和第二SP2T级联，第二SP2T的支路B连接内置主天线。
本公开实施例中所述的外置主天线模块可以如图5所示，USB插头上同样也定义了5根信号线：这里只用到数据线USB_DP/RF，检测线USB_ID_DET，信号地GND这三根线，其他两根线悬空。检测线Antenna_ID_DET通过定值电阻R1接地，USB_DP/RF连接到外置天线单元。外置主天线模块的USB插口和手机主板上USB连接座pin脚线序完全一致。
本公开实施例所述的状态检测电路1可以如图6所示，USB_ID_DET通过定值电阻R2上拉，USB_ID_DET检测线同时具备GPIO和ADC两种检测能力，一方面GPIO1连接到AP芯片，一方面通过ADC1连接到PMIC(Power  Management Integrated Circuit，电源管理集成电路)芯片。当外置主天线模块插入主板USB时，电阻R1和R2形成分压电路，这时候USB_ID_DET上呈现“中间阻态”，ADC1检测线检测到“中间阻态”并上报给PMIC芯片，系统则判定为外置天线模块插入，进而控制第一SP2T和第二SP2T开关动作，手机切换到外置主天线工作模式，此时USB_DP信号线断开，内置主天线链路断开。当USB线或OTG设备插入手机时，USB_ID_DET上呈现“低阻状态”，GPIO1检测到“低阻状态”并上报给AP芯片，系统则判定为USB线或OTG设备插入，这时候第一SP2T开关和第二SP2T开关默认处于内置主天线和正常USB接口工作模式。
本公开实施例中的“手机终端下端控制电路”，“外置主天线模块”和“状态检测电路1”三者连接关系如图7所示。
二、手机顶端装置实施例(外置分集/GPS天线+耳机插孔+内置分集/GPS天线)
如图8至11所示，本公开实施例所述的外置分集/GPS天线模块可以通过一个耳机插头连接到所述手机终端主板顶端的耳机插孔上，实现外置分集/GPS天线单元和PCB的电连接，外置分集/GPS天线模块上可以配有一个耳机插头，和一般的耳机线或音响设备可以共用手机主板上同一个耳机接口。所述手机终端顶端的分集/GPS天线除了基本的内置天线信号路径之外，还可以设计了外置天线分支。外置分集/GPS天线信号线和手机主板顶端耳机接口的一根音频线HPH_R(或HPH_L)可以通过一个SP2T射频开关(第三SP2T开关)切换；外置分集/GPS天线信号通路和内置分集/GPS天线信号通路又可以通过另一个SP2T射频开关(第四SP2T开关)切换；同时，两个SP2T开关可以级联，实现外置分集/GPS天线信号线和耳机接口的一根音频线HPH_R(或HPH_L)分时复用，以及外置天线和内置天线的切换。其中，HPH_L可以为耳机音频线左声道，HPH_R可以为耳机音频线右声道。
本公开实施例所述的外置分集/GPS天线上可以配置一个耳机插头，耳机插头的一根音频线HPH_R(或HPH_L)pin脚连接到外置分集/GPS天线单元，另一根音频线HPH_L(或HPH_R)则悬空，耳机插头的HPH_DET检测线pin脚连接到一个固定阻值的分压电阻R3，电阻的另一端接地，耳机插头的GND管脚连接到外置分集/GPS天线模块的主地。
本公开实施例所述的手机终端主板上的耳机检测线HPH_DET通过电阻R4上拉到“高阻状态”，手机主板上设计了检测电路和HPH_DET信号相连，这里的检测电路分一般的GPIO和ADC检测两种。当本公开实施例所述的外置分集/GPS天线模块插入手机顶端耳机插孔时，电阻R3和电阻R4形成分压电路，主板上ADC检测电路检测到“中间阻态”上报给Codec芯片，系统则判定为外置分集/GPS天线模块插入，这时候第三SP2T开关打到外置分集/GPS天线信号通路一侧，而耳机音频通路断开；这时候第四SP2T开关也打到外置分集/GPS天线信号通路一侧，而内置分集/GPS天线信号通路断开，于是系统处于外置分集/GPS天线工作模式。当一般耳机线或音响设备插入手机顶端耳机插孔时，HPH_DET检测线被拉低，主板上的GPIO检测到“低阻状态”，系统则判定为正常耳机或音响设备插入，这时候第三SP2T开关打到耳机音频通路，而外置分集/GPS天线信号通路断开；这时候第四SP2T开关打到内置分集/GPS天线通路一侧，而外置分集/GPS天线通路断开，于是系统处于内置分集/GPS天线和正常耳机接口工作模式。
上述“高阻状态”可以定义为1.8V，“低阻状态”可以定义为0.5V以下，“中间阻态”可以定义为1V左右。
可选地，本公开实施例中所述的手机终端顶端电路可以如图8所示，耳机连接座通常定义5根信号线：这里只对音频线HPH_R和检测线HPH_DET这两根线做修改，其他三根线不做任何变动。看图中的信号名，信号线HPH_R/RF为HPH_R和RF信号共用，经过第三SP2T开关分成HPH_R和RF两路后，HPH_R重新和HPH_L成对走向codec芯片，RF信号走向第四SP2T开关支路A，第三SP2T和第四SP2T级联，第四SP2T的支路B连接内置分集/GPS天线。
本公开实施例中所述的外置分集/GPS模块可以如图9所示，耳机插头上同样也定义了5根信号线，这里只用信号线HPH_R/RF，检测线HPH_DET，信号地GND这三根线，其他两根线悬空。Antenna_ID_DET通过定值电阻R3接地，HPH_R/RF连接到外置分集/GPS天线单元。外置分集/GPS天线模块的耳机插头和手机主板上耳机插孔pin脚线序完全一致。
本公开实施例所述的状态检测电路2可以如图10所示，HPH_DET通过定值电阻R4上拉，HPH_DET检测线同时具备GPIO和ADC两种检测能力， 一方面GPIO2连接到codec芯片，一方面通过ADC2连接到codec芯片。当外置分集/GPS天线模块插入主板耳机插孔时，电阻R3和R4形成分压电路，这时候HPH_DET上呈现“中间阻态”，ADC2检测线检测到“中间阻态”并上报给coedc芯片，系统则判定为外置分集/GPS天线模块插入，进而控制第三SP2T和第四SP2T开关动作，手机切换到外置分集/GPS天线工作模式，此时HPH_R信号线断开，内置分集/GPS天线链路断开。当耳机线或其他音响设备插入手机时，HPH_DET上呈现“低阻状态”，GPIO2检测到“低阻状态”并上报给AP芯片，系统则判定为耳机线或其他音响设备插入，这时候第三SP2T开关和第四SP2T开关默认处于内置分集/GPS天线和正常耳机接口工作模式。
本公开实施例中的“手机终端顶端控制电路”，“外置分集/GPS天线模块”和“状态检测电路2”三者连接关系如图11所示。
用户可以根据现网信号质量选择使用外置天线或者内置天线，在不会影响手机的整体造型情况下，用户可以快捷灵活地进行内置/外置天线切换，从而显著提升手机信号体验。
手机终端全金属一体化天线方案性能提升难度大，采用外置天线不方便也不现实。本公开实施例涉及一种手机终端装置，提出一种外置天线和手机终端连接方法，外置天线识别及控制方法。手机都有一个USB接口和一个耳机插孔，USB接口天然靠近手机下端的主天线，耳机插孔天然靠近手机顶端的分集/GPS天线，利用这种就近的便利，本公开中的手机终端将一个外置天线信号线(比如手机下端主天线)和USB接口信号线复用，将另一个外置天线信号线(比如手机上端GPS天线或分集天线)和耳机插孔信号线复用，通过USB接口和耳机插孔实现两个关键外置天线和硬件电路的连接，而不会改变手机原有造型。
本公开实施例中的手机USB口可以满足USB通信和天线信号传输的时分切换，本公开实施例中的耳机插孔可以满足音频传输和天线信号传输的时分切换。本公开实施例的手机终端可以识别当前插入USB口的是OTG设备还是外置天线设备，本公开实施例的手机终端可以识别当前插入耳机插孔的是耳机还是外置天线。
本公开实施例的手机终端内部电路板可以通过一个SP2T开关完成手机 下端外置主天线信号线和USB通讯线之间的切换，还可以通过另一个SP2T开关完成外置主天线信号和内置主天线信号的切换。本公开实施例的手机终端内部电路板可以通过一个SP2T开关完成手机顶端外置分集/GPS天线信号线和耳机信号线之间的切换，还可以通过另一个SP2T开关完成外置分集/GPS天线信号和内置分集/GPS天线信号的切换。
本公开实施例中的手机终端还可以包括两个状态检测电路，分别设置为：进行USB接口插入检测和耳机接口插入检测，检测电路包括一般GPIO和ADC两种类型。
本公开实施例的手机终端结合本公开实施例的外置天线构件，可以使得外置天线功能很好地融入手机终端中。用户在实际使用中，当信号正常时无需加装外置天线构件，手机USB和耳机插孔发挥正常功能，手机原有内置天线也按照正常状态工作；当弱信号场景下，用户可以加上外置天线单元，这时候手机检测到外置天线接入，切换到外置天线工作，以提高信号性能。
本领域的普通技术人员可以理解，可以对本公开的技术方案进行修改或者等同替换，而不脱离本公开技术方案的精神和范围，均应涵盖在本公开的权利要求范围当中。
工业实用性
本公开所述外置天线与移动终端的连接使用方法及装置，可以使得外置天线功能很好地融入移动终端中。用户在实际使用中，当信号正常时无需加装外置天线，移动终端的USB和耳机插孔等通用接口发挥正常功能，移动终端原有内置天线也按照正常状态工作；当弱信号场景下，用户可以加上外置天线，这时候移动终端检测到外置天线接入，切换到外置天线工作，以提高信号性能。

Claims (10)

  1. 一种外置天线接口装置，其特征在于，位于移动终端内部，所述装置包括：检测电路、控制电路和切换电路，其中，
    检测电路，设置为：与移动终端通用接口的检测线路电连接，将所述检测线路的电位状态发送给控制电路；
    控制电路，设置为：根据所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制切换电路对所述通用接口的电路连接方式进行切换；
    切换电路，设置为：切换所述通用接口的电路连接方式，以使所述通用接口在数据传输模式和天线工作模式之间切换。
  2. 根据权利要求1所述的外置天线接口装置，其中，所述检测电路，包括：第一分压元件，设置为所述第一分压元件的一端与移动终端内的弱电电源相连，另一端与通用接口的检测线路电连接；
    当外置天线插入所述通用接口时，所述第一分压元件与外置天线中的插入提示电路的阻抗实现对所述弱电电源的分压，所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
  3. 根据权利要求1所述的外置天线接口装置，所述控制电路，还设置为：在判定外置天线插入所述通用接口的情况下，若移动终端内置天线的通信质量低于设定的阈值，则将所述通用接口从数据传输模式切换到天线工作模式，并接收外置天线的射频信号。
  4. 根据权利要求1所述的外置天线接口装置，其中，所述切换电路，包括：
    第一受控开关，设置为：位于通用接口的数据传输线路中，在所述控制电路的控制下，将通用接口的数据传输线路与移动终端内部的数据传输线路连通，或者，将通用接口的数据传输线路与移动终端内部的射频传输线路连通；
    第二受控开关，设置为：在所述控制电路的控制下，将移动终端内部的射频传输线路与射频模块连通，或者，将移动终端内置天线与射频模块连通。
  5. 根据权利要求1至4中任一项所述的外置天线接口装置，其中，所述控制电路，包括：应用处理器芯片或者音频解码芯片；
    所述通用接口，包括：通用串行总线USB接口或者耳机接口；
    所述外置天线包括：外置主天线，或者，外置分集/全球定位系统GPS天线。
  6. 一种外置天线，包括：通用接口插头、外置天线模块、插入提示电路，其中，
    外置天线模块，设置为：通过所述通用接口插头与移动终端的通用接口的数据传输线路电连接；
    插入提示电路，设置为：通过所述通用接口插头与移动终端的通用接口的检测线路电连接，以使所述检测线路呈现出与外置天线未插入通用接口时不同的电位状态。
  7. 根据权利要求6所述的外置天线，其中，所述插入提示电路，包括：第二分压元件，设置为所述第二分压元件的一端与移动终端的通用接口的检测线路电连接，另一端接地。
  8. 根据权利要求6或7所述的外置天线，其中，所述通用接口插头，包括：通用串行总线USB插头或者耳机插头；
    所述外置天线模块包括：外置主天线模块，或者，外置分集/全球定位系统GPS天线模块。
  9. 一种移动终端，包括：如权利要求1至5中任一项所述的外置天线接口装置。
  10. 一种外置天线与移动终端的连接使用方法，包括：
    对移动终端通用接口的检测线路处的电位状态进行检测；
    根据检测到的所述电位状态判断外置天线是否插入所述通用接口，并根据判断结果控制所述通用接口在数据传输模式和天线工作模式之间切换。
PCT/CN2018/071945 2017-03-15 2018-01-09 一种外置天线与移动终端的连接使用方法及装置 WO2018166286A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710152819.3A CN108632404A (zh) 2017-03-15 2017-03-15 一种外置天线与移动终端的连接使用方法及装置
CN201710152819.3 2017-03-15

Publications (1)

Publication Number Publication Date
WO2018166286A1 true WO2018166286A1 (zh) 2018-09-20

Family

ID=63522744

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/071945 WO2018166286A1 (zh) 2017-03-15 2018-01-09 一种外置天线与移动终端的连接使用方法及装置

Country Status (2)

Country Link
CN (1) CN108632404A (zh)
WO (1) WO2018166286A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111736184A (zh) * 2020-05-11 2020-10-02 南京熊猫电子股份有限公司 一种外置与内置卫星定位接收信号的自动识别与切换电路装置
CN112350743B (zh) * 2020-10-23 2022-05-06 Tcl通讯（宁波）有限公司 一种天线选择电路结构、天线选择方法及客户前置设备
CN113660005B (zh) * 2021-08-16 2022-11-04 青岛海信移动通信技术股份有限公司 一种终端设备及天线切换方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101626106A (zh) * 2009-08-05 2010-01-13 中兴通讯股份有限公司南京分公司 Fm接收机的内置天线和外置天线的切换方法及终端
CN203398293U (zh) * 2013-06-27 2014-01-15 广东欧珀移动通信有限公司 外置天线、无线装置和无线设备
CN204231337U (zh) * 2014-11-20 2015-03-25 联想(北京)有限公司 电子设备以及外置天线
CN104617370A (zh) * 2015-01-15 2015-05-13 优能通信科技（杭州）有限公司 一种含多系统低频天线的通信终端及其通信方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102883006A (zh) * 2012-09-26 2013-01-16 中兴通讯股份有限公司 一种移动终端及其通信方法
CN105337049A (zh) * 2015-11-28 2016-02-17 广东欧珀移动通信有限公司 一种移动终端的天线装置和移动终端

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101626106A (zh) * 2009-08-05 2010-01-13 中兴通讯股份有限公司南京分公司 Fm接收机的内置天线和外置天线的切换方法及终端
CN203398293U (zh) * 2013-06-27 2014-01-15 广东欧珀移动通信有限公司 外置天线、无线装置和无线设备
CN204231337U (zh) * 2014-11-20 2015-03-25 联想(北京)有限公司 电子设备以及外置天线
CN104617370A (zh) * 2015-01-15 2015-05-13 优能通信科技（杭州）有限公司 一种含多系统低频天线的通信终端及其通信方法

Also Published As

Publication number Publication date
CN108632404A (zh) 2018-10-09

Similar Documents

Publication Publication Date Title
CN101951421B (zh) 一种手机耳机接口的扩展使用方法
EP2863652B1 (en) Audio interface self-adaptation device
US7298765B2 (en) System and method for multiplexing digital and analog signals using a single electrical connector
WO2018166286A1 (zh) 一种外置天线与移动终端的连接使用方法及装置
US9215541B2 (en) Apparatus for detecting type of audio interface
US20130101132A1 (en) Method and Device for Earphone and USB to Share Micro-USB Interface
US20100161860A1 (en) Pin sharing device and method thereof for a universal asynchronous receiver/transmitter module and a universal serial bus module
JP2011503814A (ja) 多目的ユニバーサルバスケーブル
CN102082846A (zh) 多外设共用接口的终端设备
WO2017101343A1 (zh) 移动终端以及外置天线
WO2020048298A1 (zh) 一种音频信号处理方法及设备
US20150269110A1 (en) Cable with multiple functions
CN105050001A (zh) 一种耳机兼容电路及其工作方法
CN207995366U (zh) 一种耳机兼容电路及电子终端
CN107635171B (zh) 一种提高耳机兼容性的电路
CN109478174B (zh) 用于可逆接口的开关
WO2023125188A1 (zh) 一种音频信号转接结构、识别方法以及音频信号传输系统
CN107908387B (zh) 信号传输电路、信号传输系统、信号传输方法及智能终端
CN104714116A (zh) 天线检测电路
CN100397725C (zh) 可检测插头插入或移出插孔的连接装置
TW202025637A (zh) 連接電路及其連接方法
US20220386050A1 (en) State detection device for use in an audio interface
CN113206906A (zh) 电子设备组件和数字耳机
US20130329917A1 (en) Portable electronic device having universal earphone jack
CN216357169U (zh) 一种麦克风转换开关电路

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18767016

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18767016

Country of ref document: EP

Kind code of ref document: A1