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WO2021129525A1 - 天线电路、电子设备及天线性能的调整方法 - Google Patents

天线电路、电子设备及天线性能的调整方法 Download PDF

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Publication number
WO2021129525A1
WO2021129525A1 PCT/CN2020/137417 CN2020137417W WO2021129525A1 WO 2021129525 A1 WO2021129525 A1 WO 2021129525A1 CN 2020137417 W CN2020137417 W CN 2020137417W WO 2021129525 A1 WO2021129525 A1 WO 2021129525A1
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Prior art keywords
antenna
throughput
rssi
preset value
unit
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PCT/CN2020/137417
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English (en)
French (fr)
Inventor
杨少华
李帅
Original Assignee
维沃移动通信有限公司
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Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2021129525A1 publication Critical patent/WO2021129525A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers

Definitions

  • the present invention relates to the field of communication technology, in particular to an antenna circuit, electronic equipment and antenna performance adjustment method.
  • Wi-Fi wireless local area network
  • the Wi-Fi (wireless local area network) function is a commonly used short-distance communication method for electronic devices, and the commonly used frequency ranges are 2.4-2.4835GHz and 5.150-5850MHz.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • MU-MIMO Multi-User Multiple-Input Multiple-Output
  • Wi-Fi is a more commonly used method of Internet communication.
  • Wi-Fi is a short-distance communication method.
  • the Wi-Fi function of electronic equipment uses a router to access the Internet.
  • the router is fixed in position and is often installed in a specific location.
  • the coverage area of the antenna used by the router is often small.
  • a relatively obvious antenna directivity is formed.
  • the position of the Wi-Fi antenna is relatively fixed, the number of Wi-Fi antennas is small, and the occupied area is small.
  • the design of the existing Wi-Fi circuit scheme has the following two limitations:
  • the Wi-Fi antenna will be covered due to the way the user holds it, resulting in weaker performance of the Wi-Fi antenna.
  • the antenna pattern is relatively fixed, so that the maximum signal main lobe of the Wi-Fi antenna pattern cannot coincide with the directional main lobe of the router antenna during the user's movement, resulting in reduced antenna performance.
  • the embodiment of the present invention provides an antenna circuit, an electronic device, and an antenna performance adjustment method, which can solve the problem of reduced throughput due to the limitation of the antenna structure for short-distance communication in the prior art.
  • An antenna circuit includes:
  • a short-distance communication chip where the short-distance communication chip is connected to N signal transceiving units, and the N is greater than or equal to 2;
  • Each antenna interface is also connected to an antenna radiating unit through a signal path, and the signal path is provided with a phase shifter for adjusting the phase of the signal.
  • An embodiment of the present invention also provides an electronic device, including the antenna circuit described above.
  • the embodiment of the present invention provides a method for adjusting antenna performance, which is applied to the above-mentioned electronic device, and the method includes:
  • the state of the switch unit and the phase adjustment value of the phase shifter are adjusted , So that the throughput of the antenna radiation unit is greater than the first preset value and/or the RSSI is greater than the second preset value.
  • the electronic device by adding a switch unit and a phase shifter in the antenna circuit, with the advantage of multiple antennas, by adjusting the switch unit to turn on or off the signal path and the phase shifter to adjust the signal phase, the electronic device
  • the short-distance communication signal radiated to the outside changes the antenna pattern through the beamforming mechanism, thereby maximizing the antenna performance, reducing the attenuation of the short-distance communication signal during the hand and moving, and improving the throughput of short-distance communication.
  • FIG. 1 shows a schematic structural diagram of an antenna circuit provided by an embodiment of the present invention
  • FIG. 2 shows a flowchart of steps of a method for adjusting antenna performance provided by an embodiment of the present invention
  • FIG. 3 shows a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiment of the present invention should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the electronic device provided by the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, a wearable device (Wearable Device), a vehicle-mounted device, or a personal digital assistant ( Personal Digital Assistant, PDA), etc.
  • UMPC Ultra-Mobile Personal Computer
  • PDA Personal Digital Assistant
  • LTE and NR systems are taken as examples, but are not limited to this system, and the technical solution provided by the present invention can be applied to other systems with the same problem.
  • An embodiment of the present invention provides an antenna circuit.
  • the antenna circuit includes (N in the antenna circuit shown in FIG. 1 is equal to 2):
  • a short-distance communication chip which is used to complete the modulation and demodulation of short-distance communication signals; the short-distance communication chip is connected to N signal transceiving units, and the N is greater than or equal to 2;
  • Each antenna interface is also connected to an antenna radiating unit through a signal path, and the signal path is provided with a phase shifter for adjusting the phase of the signal.
  • the electronic device also includes a central processing unit CPU, which is used for scheduling control signals, such as controlling the turn-off or conduction of the switch unit, controlling the phase adjustment value of the phase shifter, and controlling the short-distance communication chip. Sending or receiving, etc. are not enumerated here.
  • a central processing unit CPU which is used for scheduling control signals, such as controlling the turn-off or conduction of the switch unit, controlling the phase adjustment value of the phase shifter, and controlling the short-distance communication chip. Sending or receiving, etc. are not enumerated here.
  • the CPU completes the switching of the antenna according to the throughput and/or RSSI collected in real time to realize the optimization of the antenna; and adjusts the phase of the radio frequency signal by continuously adjusting the phase adjustment value of the phase shifter. Antenna pattern, select the optimal radio frequency signal phase to optimize antenna performance.
  • the switch unit is a multi-pole multi-throw switch.
  • the switch unit is a double-pole double-throw switch DPDT.
  • the directivity of the router is more obvious due to the relatively fixed location of the router.
  • the switch unit to turn on or off the signal path and adjust the phase shifter to adjust the signal phase, it can make the short-distance communication signal radiated by electronic equipment.
  • the beamforming mechanism to change the antenna pattern, the main lobe direction formed by the multiple Wi-Fi antennas is closer to the main lobe direction of the router antenna, thereby maximizing the antenna performance and reducing Wi-Fi during hand grip and movement.
  • -The attenuation of Fi signal improves Wi-Fi throughput.
  • An embodiment of the present invention also provides an electronic device, which is characterized by including the antenna circuit as described above.
  • the electronic device can radiate externally.
  • the short-distance communication signal changes the antenna pattern through the beamforming mechanism, thereby maximizing the antenna performance, reducing the attenuation of the short-distance communication signal during the hand and moving, and improving the throughput of the short-distance communication.
  • an embodiment of the present invention also provides a method for adjusting antenna performance, which is applied to the electronic device described above, and the method includes:
  • Step 201 Obtain the throughput of the antenna radiating unit of the antenna circuit and/or the received signal strength indicator RSSI of the antenna radiating unit;
  • Step 202 When the throughput of the antenna radiating unit is less than a first preset value and/or the RSSI is less than a second preset value, adjust the state of the switch unit and the phase of the phase shifter The value is adjusted so that the throughput of the antenna radiating unit is greater than the first preset value and/or the RSSI is greater than the second preset value.
  • the antenna performance is improved by adjusting the phase of the short-distance communication signal and the antenna interface through which the signal transceiving unit is connected.
  • step 202 includes:
  • the currently detected target throughput is greater than the first preset value and/or the target RSSI is greater than the second preset value, it is determined to use the target throughput and/or the combined data corresponding to the target RSSI.
  • the electronic device when the electronic device is working, it monitors the RSSI and throughput of the antenna radiating unit corresponding to the short-distance communication in real time.
  • the CPU first traverses the state and phase shift of the known switch unit in the call register The phase adjustment value of the receiver, and judge whether the throughput and RSSI are improved. If there is improvement, use the current state of the switch unit and the phase adjustment value of the phase shifter.
  • the state of the switch unit includes: turning on or turning off the connection between any signal transceiving unit and any antenna interface.
  • the method further includes:
  • the state of the switch unit corresponding to the optimal throughput and/or the optimal RSSI and the phase adjustment value of the phase shifter are formed as combined data and stored in the register.
  • the switch unit and phase shifter in the above-mentioned antenna circuit are set by default according to the OTA (over-the-air performance) performance.
  • the default setting is to move the electronic device to different positions of the router under different hand holding conditions, perform traversal scanning, select the optimal combination data of the switch unit and the phase shifter, and store it in the CPU register.
  • the method further includes:
  • the currently detected throughput is greater than the first preset value and/or the RSSI is greater than the second preset value, it is determined to use the currently adjusted state of the switch unit and the phase adjustment value of the phase shifter.
  • the electronic device starts to scan the switch unit and the phase shifter to obtain a set of combined data of the switch unit and the phase shifter with the best throughput and RSSI in the current state, thus maximizing the antenna radiation. Hope the throughput improves the user experience.
  • the embodiment of the present invention improves the antenna throughput of short-distance communication by adding phase shifters and switching units, and providing a method for calling known parameters during use, and dynamically adjusting the switching units and phase shifters in real time. Limited to factory performance. By calling the known parameters, the function can be realized fast, and the appropriate status can be found quickly, and the user experience can be improved; further, the real-time status adjustment can be used to maximize the use of hardware to find the current use when the known parameters cannot improve the antenna performance. Optimal antenna performance in the scene, improving antenna throughput and improving user experience.
  • the antenna performance adjustment method provided by the embodiment of the present invention is also applicable to the cellular communication circuit.
  • the judgment and adjustment method of the short-distance antenna circuit can also be referred to. , Improve the signal quality of cellular communication.
  • the electronic device 300 includes but is not limited to: a radio frequency unit 301, a network module 302, an audio output unit 303, an input unit 304, a sensor 305, and a display unit 306, a user input unit 307, an interface unit 308, a memory 309, a processor 310, and a power supply 311 and other components.
  • a radio frequency unit 301 includes but is not limited to: a radio frequency unit 301, a network module 302, an audio output unit 303, an input unit 304, a sensor 305, and a display unit 306, a user input unit 307, an interface unit 308, a memory 309, a processor 310, and a power supply 311 and other components.
  • the electronic device may include more or fewer components than those shown in the figure, or a combination of certain components, or different components. Layout.
  • electronic devices include, but are not limited to, mobile phones, tablet computers, notebook computers, palmtop computers, vehicle-mounted terminals, wearable devices, and pedometers.
  • the radio frequency unit 301 is used to obtain the throughput of the antenna radiating unit of the antenna circuit and/or the received signal strength indicator RSSI of the antenna radiating unit;
  • the processor 310 is configured to check the state of the switch unit and the phase shifter when the throughput of the antenna radiation unit is less than a first preset value and/or the RSSI is less than a second preset value. Adjusting the phase adjustment value of, so that the throughput of the antenna radiating unit is greater than the first preset value and/or the RSSI is greater than the second preset value;
  • the electronic device provided by the embodiment of the present invention can implement the various processes implemented by the electronic device in the method embodiments of FIG. 1 to FIG. 2. To avoid repetition, details are not described herein again.
  • the embodiment of the present invention improves the antenna throughput of short-distance communication by adding phase shifters and switching units, and providing a method for calling known parameters during use, and dynamically adjusting the switching units and phase shifters in real time. Limited to factory performance. By calling the known parameters, the function can be realized fast, and the appropriate status can be found quickly, and the user experience can be improved; further, the real-time status adjustment can be used to maximize the use of hardware to find the current use when the known parameters cannot improve the antenna performance. Optimal antenna performance in the scene, improving antenna throughput and improving user experience.
  • the electronic device provided by the embodiment of the present invention is an electronic device capable of performing the above-mentioned antenna performance adjustment method, and all the embodiments of the above-mentioned antenna performance adjustment method are applicable to the electronic device, and all can achieve the same or Similar beneficial effects.
  • the radio frequency unit 301 can be used for receiving and sending signals during the process of sending and receiving information or talking. Specifically, the downlink data from the base station is received and processed by the processor 310; in addition, Uplink data is sent to the base station.
  • the radio frequency unit 301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 301 can also communicate with the network and other devices through a wireless communication system.
  • the electronic device provides users with wireless broadband Internet access through the network module 302, such as helping users to send and receive emails, browse web pages, and access streaming media.
  • the audio output unit 303 may convert the audio data received by the radio frequency unit 301 or the network module 302 or stored in the memory 309 into an audio signal and output it as sound. Moreover, the audio output unit 303 may also provide audio output related to a specific function performed by the electronic device 300 (for example, call signal reception sound, message reception sound, etc.).
  • the audio output unit 303 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 304 is used to receive audio or video signals.
  • the input unit 304 may include a graphics processing unit (GPU) 3041 and a microphone 3042.
  • the graphics processor 3041 is used for the image of a still picture or video obtained by an image capture device (such as a camera) in the video capture mode or the image capture mode. Data is processed.
  • the processed image frame may be displayed on the display unit 306.
  • the image frame processed by the graphics processor 3041 may be stored in the memory 309 (or other storage medium) or sent via the radio frequency unit 301 or the network module 302.
  • the microphone 3042 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be sent to the mobile communication base station via the radio frequency unit 301 for output in the case of a telephone call mode.
  • the electronic device 300 also includes at least one sensor 305, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 3061 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 3061 and the display panel 3061 when the electronic device 300 is moved to the ear. / Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of electronic devices (such as horizontal and vertical screen switching, related games) , Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, percussion), etc.; sensor 305 can also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, Infrared sensors, etc., will not be repeated here.
  • the display unit 306 is used to display information input by the user or information provided to the user.
  • the display unit 306 may include a display panel 3061, and the display panel 3061 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • LCD liquid crystal display
  • OLED organic light-emitting diode
  • the user input unit 307 may be used to receive inputted numeric or character information, and generate key signal input related to user settings and function control of the electronic device.
  • the user input unit 307 includes a touch panel 3071 and other input devices 3072.
  • the touch panel 3071 also called a touch screen, can collect user touch operations on or near it (for example, the user uses any suitable objects or accessories such as fingers, stylus, etc.) on the touch panel 3071 or near the touch panel 3071. operating).
  • the touch panel 3071 may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 310, the command sent by the processor 310 is received and executed.
  • the touch panel 3071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
  • the user input unit 307 may also include other input devices 3072.
  • other input devices 3072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackball, mouse, and joystick, which will not be repeated here.
  • the touch panel 3071 can be overlaid on the display panel 3061.
  • the touch panel 3071 detects a touch operation on or near it, it is transmitted to the processor 310 to determine the type of the touch event, and then the processor 310 determines the type of the touch event according to the touch.
  • the type of event provides corresponding visual output on the display panel 3061.
  • the touch panel 3071 and the display panel 3061 are used as two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 3071 and the display panel 3061 can be integrated
  • the implementation of the input and output functions of the electronic device is not specifically limited here.
  • the interface unit 308 is an interface for connecting an external device and the electronic device 300.
  • the external device may include a wired or wireless headset port, an external power source (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input/output (I/O) port, video I/O port, headphone port, etc.
  • the interface unit 308 can be used to receive input (for example, data information, power, etc.) from an external device and transmit the received input to one or more elements in the electronic device 300 or can be used to connect the electronic device 300 to an external device. Transfer data between devices.
  • the memory 309 can be used to store software programs and various data.
  • the memory 309 may mainly include a program storage area and a data storage area.
  • the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of mobile phones (such as audio data, phone book, etc.), etc.
  • the memory 309 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
  • the processor 310 is the control center of the electronic device. It uses various interfaces and lines to connect the various parts of the entire electronic device, runs or executes the software programs and/or modules stored in the memory 309, and calls the data stored in the memory 309 , Perform various functions of electronic equipment and process data, so as to monitor the electronic equipment as a whole.
  • the processor 310 may include one or more processing units; preferably, the processor 310 may integrate an application processor and a modem processor, where the application processor mainly processes the operating system, user interface, and application programs.
  • the processor mainly deals with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 310.
  • the electronic device 300 may also include a power source 311 (such as a battery) for supplying power to various components.
  • a power source 311 such as a battery
  • the power source 311 may be logically connected to the processor 310 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. And other functions.
  • the electronic device 300 includes some functional modules not shown, which will not be repeated here.
  • the embodiment of the present invention also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and running on the processor.
  • the computer program is executed by the processor to achieve the above-mentioned antenna performance.
  • Each process of the embodiment of the method is adjusted, and the same technical effect can be achieved. In order to avoid repetition, details are not repeated here.
  • the embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the above-mentioned antenna performance adjustment method embodiment is realized, and the same can be achieved. In order to avoid repetition, I won’t repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the method described in each embodiment of the present invention.
  • a terminal which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.

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Abstract

本发明提供一种天线电路、电子设备及天线性能的调整方法，该方法包括：获取天线电路的天线辐射单元的吞吐量和/或天线辐射单元的接收信号强度指示RSSI；在天线辐射单元的吞吐量小于第一预设值和/或RSSI小于第二预设值的情况下，对开关单元的状态和移相器的相位调整值进行调整，以使天线辐射单元的吞吐量大于第一预设值和/或RSSI大于第二预设值。

Description

天线电路、电子设备及天线性能的调整方法
相关申请的交叉引用
本申请主张在2019年12月24日在中国提交的中国专利申请号No.201911346706.2的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及通信技术领域，尤其是指一种天线电路、电子设备及天线性能的调整方法。
背景技术
Wi-Fi(无线局域网)功能是电子设备常用的一种短距离通信方式，常用频率范围为2.4-2.4835GHz和5.150～5850MHz。目前最新的Wi-Fi 6通过正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)+多用户-多输入多输出(Multi-User Multiple-Input Multiple-Output，MU-MIMO)技术极大地提升了吞吐量和设备连接数，最高速率可以到达9.6Gbps。在实际中，Wi-Fi是比较常用的一种上网通信方式。
但是Wi-Fi功能在实际使用过程中，Wi-Fi是一种短距离通信方式，电子设备的Wi-Fi功能借助路由器进行上网，而实际情况下路由器位置固定，常安装于某一个具体位置，同时路由器采用的天线所能覆盖的范围往往较小，固定环境下，由于摆放位置的原因，形成比较明显的天线方向性，同时环境干扰因素较多，这样就会造成电子设备Wi-Fi吞吐量在实际使用过程中降低。
在Wi-Fi电路设计中，由于电子设备外观和其他功能模块的限定，Wi-Fi的天线位置相对固定，Wi-Fi天线数量少，占用面积小。现有Wi-Fi电路方案的设计存在以下两种限制：
1.实际用户场景下，由于用户手握方式会使得Wi-Fi天线被覆盖，导致Wi-Fi天线性能减弱。
2.由于天线结构的限制，天线的方向图比较固定，这样用户在移动过程中，Wi-Fi的天线方向图最大信号主瓣往往不能与路由器天线的方向主瓣重合， 导致天线性能降低。
上述两个因素都会影响Wi-Fi的吞吐量。
发明内容
本发明实施例提供一种天线电路、电子设备及天线性能的调整方法，能够解决现有技术中由于短距离通信的天线结构的限制导致吞吐量降低的问题。
为了解决上述技术问题，本发明是这样实现的：一种天线电路，包括：
短距离通信芯片，所述短距离通信芯片与N个信号收发单元连接，所述N大于或等于2；
N个天线接口；
连接在所述N个信号收发单元与所述N个天线接口之间的开关单元，所述开关单元导通或关断任一信号收发单元与任一天线接口之间的连接；
每个天线接口还分别通过一路信号通路连接至一个天线辐射单元，且所述信号通路上设置有用于调整信号相位的移相器。
本发明实施例还提供了一种电子设备，包括如上所述的天线电路。
本发明实施例提供了一种天线性能的调整方法，应用于如上所述的电子设备，所述方法包括：
获取所述天线电路的天线辐射单元的吞吐量和/或天线辐射单元的接收信号强度指示RSSI；
在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，对所述开关单元的状态和所述移相器的相位调整值进行调整，以使所述天线辐射单元的吞吐量大于所述第一预设值和/或所述RSSI大于第二预设值。
在本发明实施例中，通过在天线电路中增加开关单元和移相器，借助多天线的优势，通过调整开关单元导通或关断信号通路以及调整移相器调整信号相位，能够使得电子设备对外辐射的短距离通信信号通过波束赋形的机制改变天线的方向图，从而最大化地提升天线性能，减少了手握以及移动过程中短距离通信信号的衰减，提升短距离通信的吞吐量。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示本发明实施例提供的天线电路的结构示意图；
图2表示本发明实施例提供的天线性能的调整方法的步骤流程图；
图3表示本发明实施例提供的电子设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本发明实施例提供的电子设备可以为手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、上网本、可穿戴式设备(Wearable Device)、车载设备或者个人数字助理(Personal Digital Assistant，PDA)等。需要说明的是，在本发明实施例中并不限定电子设备的具体类型。本发明实施例中以LTE以及NR系统为例，然不限于此系统，本发明提供的技术方案可以应用于存在相同问题的其他系统。
本发明实施例提供一种天线电路，如图1所示，该天线电路包括(图1中示出的天线电路中N等于2)：
短距离通信芯片，该短距离通信芯片用于完成短距离通信信号的调制和解调；所述短距离通信芯片与N个信号收发单元连接，所述N大于或等于2；
N个天线接口(图中未示出)；
连接在所述N个信号收发单元与所述N个天线接口之间的开关单元，所述开关单元导通或关断任一信号收发单元与任一天线接口之间的连接；
每个天线接口还分别通过一路信号通路连接至一个天线辐射单元，且所述信号通路上设置有用于调整信号相位的移相器。
如图1所示，电子设备还包括中央处理器CPU，该CPU用于进行控制信号的调度，例如控制开关单元的关断或导通，控制移相器的相位调整值，控制短距离通信芯片的发送或接收等，在此不一一枚举。
本发明实施例提供的天线电路中，CPU根据实时采集的吞吐量和/或RSSI，完成天线的切换，实现天线的优选；并通过不断调整移相器的相位调整值来调整射频信号相位，改变天线方向图，挑选最优射频信号相位，实现天线性能最优化。
可选地，所述开关单元为多刀多掷开关。例如，N等于2的情况下，该开关单元为双刀双掷开关DPDT。
短距离通信为Wi-Fi的情况下，由于路由器放置位置相对固定，路由器的方向性比较明显。在天线电路设计增加移相器和开关切换功能，借助多天线的优势，通过调整开关单元导通或关断信号通路以及调整移相器调整信号相位，能够使得电子设备对外辐射的短距离通信信号通过波束赋形的机制改变天线的方向图，使得Wi-Fi多根天线形成的主瓣方向更加接近路由器的天线主瓣方向，从而最大化地提升天线性能，减少了手握以及移动过程中Wi-Fi信号的衰减，提升Wi-Fi的吞吐量。
本发明实施例还提供一种电子设备，其特征在于，包括如上所述的天线电路。
本发明实施例通过在天线电路中增加开关单元和移相器，借助多天线的优势，通过调整开关单元导通或关断信号通路以及调整移相器调整信号相位，能够使得电子设备对外辐射的短距离通信信号通过波束赋形的机制改变天线的方向图，从而最大化地提升天线性能，减少了手握以及移动过程中短距离通信信号的衰减，提升短距离通信的吞吐量。
如图2所示，本发明实施例还提供一种天线性能的调整方法，应用于如 上所述的电子设备，所述方法包括：
步骤201，获取所述天线电路的天线辐射单元的吞吐量和/或天线辐射单元的接收信号强度指示RSSI；
步骤202，在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，对所述开关单元的状态和所述移相器的相位调整值进行调整，以使所述天线辐射单元的吞吐量大于所述第一预设值和/或所述RSSI大于第二预设值。
本发明实施例中，通过调整短距离通信信号的相位以及信号收发单元导通的天线接口来改善天线性能。
作为一个可选实施例，步骤202包括：
在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，获取寄存器中预先存储的开关单元的状态和移相器的相位调整值的组合数据；
依次将所述开关单元的状态和移相器的相位调整值修改为所述寄存器中的组合数据，并在每次修改后检测所述天线辐射单元的吞吐量和/或所述RSSI；
若当前检测到的目标吞吐量大于第一预设值和/或目标RSSI大于第二预设值，确定使用所述目标吞吐量和/或目标RSSI对应的组合数据。
换言之，电子设备工作时，实时监测短距离通信对应的天线辐射单元的RSSI和吞吐量，当RSSI和/或吞吐量发生恶化时，CPU首先遍历调用寄存器中已知的开关单元的状态和移相器的相位调整值，并判断吞吐量和RSSI是否有改善。如果有改善，就使用当前的开关单元的状态和移相器的相位调整值。
其中，所述开关单元的状态包括：导通或关断任一信号收发单元与任一天线接口之间的连接。
可选地，所述方法还包括：
对处于不同状态的电子设备进行遍历扫描，选择天线接收的最优吞吐量和/或最优RSSI；
将最优吞吐量和/或最优RSSI对应的开关单元的状态和移相器的相位调整值形成为组合数据存在于所述寄存器中。
例如，电子设备出厂时上述天线电路中的开关单元和移相器根据OTA(空 中性能)性能进行默认设置。默认设置是指在不同手握情况下，通过移动电子设备，使得电子设备处于路由器的不同方位，进行遍历扫描，选取最优的开关单元和移相器的组合数据，存储于CPU寄存器中。
承接上例，遍历完寄存器中的组合数据后，吞吐量和RSSI未有改善；即若遍历所述寄存器中的组合数据后检测到的吞吐量均小于第一预设值和/或RSSI均小于第二预设值，所述方法还包括：
根据预设规则调整开关单元的状态和移相器的相位调整值，并在每次调整后检测所述天线辐射单元的吞吐量和/或所述RSSI；
若当前检测到的吞吐量大于第一预设值和/或RSSI大于第二预设值，确定使用当前调整得到的开关单元的状态和移相器的相位调整值。
此种情况下，电子设备开始对开关单元和移相器遍历扫描，得到一组当前状态下吞吐量和RSSI最优的开关单元和移相器的组合数据，这样就最大限度地改善了天线辐射但愿的吞吐量，提高了用户体验。
综上，本发明实施例通过增加移相器和开关单元，并提供在使用中调用已知参数，并可以实时动态调整开关单元和移相器的方法，改善了短距离通信的天线吞吐量受限于出厂性能。通过调用已知参数，实现功能速度快，能够很快地找到合适的状态，提高用户体验；进一步在已知参数无法改善天线性能的情况下通过实时状态调整，能够最大化地利用硬件找到当前使用场景下最优的天线性能，改善天线吞吐量，提高用户体验。
需要说明的是，本发明实施例提供的天线性能的调整方法也适用于蜂窝通信电路上，当蜂窝通信接入到室内微基站时，也可以参考该短距离通的天线电路的判定和调整方法，改善蜂窝通信方式的信号质量。
图3为实现本发明各个实施例的一种电子设备的硬件结构示意图，该电子设备300包括但不限于：射频单元301、网络模块302、音频输出单元303、输入单元304、传感器305、显示单元306、用户输入单元307、接口单元308、存储器309、处理器310、以及电源311等部件。本领域技术人员可以理解，图3中示出的电子设备结构并不构成对电子设备的限定，电子设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本发明实施例中，电子设备包括但不限于手机、平板电脑、笔记本电脑、掌上 电脑、车载终端、可穿戴设备、以及计步器等。
其中，射频单元301，用于获取所述天线电路的天线辐射单元的吞吐量和/或天线辐射单元的接收信号强度指示RSSI；
处理器310，用于在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，对所述开关单元的状态和所述移相器的相位调整值进行调整，以使所述天线辐射单元的吞吐量大于所述第一预设值和/或所述RSSI大于第二预设值；
本发明实施例提供的电子设备能够实现图1至图2的方法实施例中电子设备实现的各个过程，为避免重复，这里不再赘述。
综上，本发明实施例通过增加移相器和开关单元，并提供在使用中调用已知参数，并可以实时动态调整开关单元和移相器的方法，改善了短距离通信的天线吞吐量受限于出厂性能。通过调用已知参数，实现功能速度快，能够很快地找到合适的状态，提高用户体验；进一步在已知参数无法改善天线性能的情况下通过实时状态调整，能够最大化地利用硬件找到当前使用场景下最优的天线性能，改善天线吞吐量，提高用户体验。
需要说明的是，本发明实施例提供的电子设备是能够执行上述天线性能的调整方法的电子设备，则上述天线性能的调整方法的所有实施例均适用于该电子设备，且均能达到相同或相似的有益效果。
应理解的是，本发明实施例中，射频单元301可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器310处理；另外，将上行的数据发送给基站。通常，射频单元301包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元301还可以通过无线通信系统与网络和其他设备通信。
电子设备通过网络模块302为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元303可以将射频单元301或网络模块302接收的或者在存储器309中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元303还可以提供与电子设备300执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元303包括扬声器、蜂 鸣器以及受话器等。
输入单元304用于接收音频或视频信号。输入单元304可以包括图形处理器(Graphics Processing Unit，GPU)3041和麦克风3042，图形处理器3041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元306上。经图形处理器3041处理后的图像帧可以存储在存储器309(或其它存储介质)中或者经由射频单元301或网络模块302进行发送。麦克风3042可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元301发送到移动通信基站的格式输出。
电子设备300还包括至少一种传感器305，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板3061的亮度，接近传感器可在电子设备300移动到耳边时，关闭显示面板3061和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可检测出重力的大小及方向，可用于识别电子设备姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器305还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元306用于显示由用户输入的信息或提供给用户的信息。显示单元306可包括显示面板3061，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板3061。
用户输入单元307可用于接收输入的数字或字符信息，以及产生与电子设备的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元307包括触控面板3071以及其他输入设备3072。触控面板3071，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板3071上或在触控面板3071附近的操作)。触控面板 3071可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器310，接收处理器310发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板3071。除了触控面板3071，用户输入单元307还可以包括其他输入设备3072。具体地，其他输入设备3072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板3071可覆盖在显示面板3061上，当触控面板3071检测到在其上或附近的触摸操作后，传送给处理器310以确定触摸事件的类型，随后处理器310根据触摸事件的类型在显示面板3061上提供相应的视觉输出。虽然在图3中，触控面板3071与显示面板3061是作为两个独立的部件来实现电子设备的输入和输出功能，但是在某些实施例中，可以将触控面板3071与显示面板3061集成而实现电子设备的输入和输出功能，具体此处不做限定。
接口单元308为外部装置与电子设备300连接的接口。例如，外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元308可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到电子设备300内的一个或多个元件或者可以用于在电子设备300和外部装置之间传输数据。
存储器309可用于存储软件程序以及各种数据。存储器309可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器309可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器310是电子设备的控制中心，利用各种接口和线路连接整个电子 设备的各个部分，通过运行或执行存储在存储器309内的软件程序和/或模块，以及调用存储在存储器309内的数据，执行电子设备的各种功能和处理数据，从而对电子设备进行整体监控。处理器310可包括一个或多个处理单元；优选的，处理器310可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器310中。
电子设备300还可以包括给各个部件供电的电源311(比如电池)，优选的，电源311可以通过电源管理系统与处理器310逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，电子设备300包括一些未示出的功能模块，在此不再赘述。
优选的，本发明实施例还提供一种电子设备，包括处理器，存储器，存储在存储器上并可在所述处理器上运行的计算机程序，该计算机程序被处理器执行时实现上述天线性能的调整方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本发明实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述天线性能的调整方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体 现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本发明各个实施例所述的方法。
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本发明的保护之内。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以权利要求的保护范围为准。

Claims (10)

  1. 一种天线电路，其特征在于，包括：
    短距离通信芯片，所述短距离通信芯片与N个信号收发单元连接，所述N大于或等于2；
    N个天线接口；
    连接在所述N个信号收发单元与所述N个天线接口之间的开关单元，所述开关单元导通或关断任一信号收发单元与任一天线接口之间的连接；
    每个天线接口还分别通过一路信号通路连接至一个天线辐射单元，且所述信号通路上设置有用于调整信号相位的移相器。
  2. 根据权利要求1所述的天线电路，其特征在于，所述开关单元为多刀多掷开关。
  3. 一种电子设备，其特征在于，包括如权利要求1或2所述的天线电路。
  4. 一种天线性能的调整方法，应用于如权利要求3所述的电子设备，其特征在于，所述方法包括：
    获取所述天线电路的天线辐射单元的吞吐量和/或天线辐射单元的接收信号强度指示RSSI；
    在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，对所述开关单元的状态和所述移相器的相位调整值进行调整，以使所述天线辐射单元的吞吐量大于所述第一预设值和/或所述RSSI大于第二预设值。
  5. 根据权利要求4所述的方法，其特征在于，所述在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，对所述开关单元的状态和所述移相器的相位调整值进行调整，包括：
    在所述天线辐射单元的吞吐量小于第一预设值和/或所述RSSI小于第二预设值的情况下，获取寄存器中预先存储的开关单元的状态和移相器的相位调整值的组合数据；
    依次将所述开关单元的状态和移相器的相位调整值修改为所述寄存器中的组合数据，并在每次修改后检测所述天线辐射单元的吞吐量和/或所述RSSI；
    若当前检测到的目标吞吐量大于第一预设值和/或目标RSSI大于第二预设值，确定使用所述目标吞吐量和/或目标RSSI对应的组合数据。
  6. 根据权利要求5所述的方法，其特征在于，若遍历所述寄存器中的组合数据后检测到的吞吐量均小于第一预设值和/或RSSI均小于第二预设值，所述方法还包括：
    根据预设规则调整开关单元的状态和移相器的相位调整值，并在每次调整后检测所述天线辐射单元的吞吐量和/或所述RSSI；
    若当前检测到的吞吐量大于第一预设值和/或RSSI大于第二预设值，确定使用当前调整得到的开关单元的状态和移相器的相位调整值。
  7. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    对处于不同状态的电子设备进行遍历扫描，选择天线接收的最优吞吐量和/或最优RSSI；
    将最优吞吐量和/或最优RSSI对应的开关单元的状态和移相器的相位调整值形成为组合数据存在于所述寄存器中。
  8. 根据权利要求4-7任一项所述的方法，其特征在于，所述开关单元的状态包括：
    导通或关断任一信号收发单元与任一天线接口之间的连接。
  9. 一种电子设备，其特征在于，包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求4至8中任一项所述的天线性能的调整方法的步骤。
  10. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质上存储计算机程序，所述计算机程序被处理器执行时实现如权利要求4至8中任一项所述的天线性能的调整方法的步骤。
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