WO2014048178A1 - 一种移动终端及其通信方法 - Google Patents

一种移动终端及其通信方法 Download PDF

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Publication number
WO2014048178A1
WO2014048178A1 PCT/CN2013/081370 CN2013081370W WO2014048178A1 WO 2014048178 A1 WO2014048178 A1 WO 2014048178A1 CN 2013081370 W CN2013081370 W CN 2013081370W WO 2014048178 A1 WO2014048178 A1 WO 2014048178A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
antenna
signal strength
external antenna
terminal body
Prior art date
Application number
PCT/CN2013/081370
Other languages
English (en)
French (fr)
Inventor
陈锋
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 WO2014048178A1 publication Critical patent/WO2014048178A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/10Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets

Definitions

  • the present invention relates to the field of mobile terminal technologies, and in particular, to a mobile terminal and a communication method thereof. Background technique
  • the reduction in volume and the thinning of the thickness will result in a decrease in the performance of the antenna of the communication product, thereby affecting the communication of the mobile terminal, especially in areas where the signal coverage is not very good, such as:
  • the formation of signal blind spots, rural areas and wild areas, mobile phones and other mobile terminals how to achieve good communication in these weak signal areas has become an urgent problem in the field of mobile terminals.
  • the introduction of an external antenna is an effective method to solve the problem that the weak signal region cannot communicate well.
  • the existing technical solution needs to temporarily assemble the attached external object into a usable external antenna, or the user needs to determine the current
  • the strength of the communication signal in the environment is artificially determined whether it is necessary to access the external antenna. If necessary, the external antenna to be carried is connected to the mobile terminal, and the external antenna is taken out from the mobile terminal when not needed.
  • the external antenna is connected, regardless of the strength of the communication signal in the current environment, only the external antenna can be used for communication. To use the mobile terminal's own antenna, the external antenna must be manually removed.
  • the strength of the communication signal in the current environment intelligently uses the built-in or external antenna for communication, thus reducing the user experience.
  • the external antenna is physically accessed to the mobile terminal and the mobile terminal is removed, and the physical access interface is easily worn.
  • the reliability and effective use time of the external antenna will be Faced with the test; also, the external antenna needs to be carried when not in use, which will also greatly reduce the user experience.
  • the main objective of the embodiments of the present invention is to provide a mobile terminal and a communication method thereof, which can achieve good communication in an environment with poor signal quality, thereby improving communication quality.
  • An embodiment of the present invention provides a mobile terminal communication method, where an external antenna is disposed in a protection back shell of the mobile terminal; the method includes:
  • the mobile terminal detects the signal strength in the current environment
  • the mobile terminal is controlled to perform wireless communication using the built-in antenna or the external antenna based on the detected signal strength value.
  • the controlling the mobile terminal to perform wireless communication using the built-in antenna or the external antenna according to the detected signal strength value is:
  • Determining whether the currently received signal strength value is greater than a set threshold If it is greater than, the mobile terminal uses the built-in antenna for wireless communication; if it is less than or equal, it determines whether the external antenna is successfully connected with the mobile terminal body, if it is unsuccessful When connected, the mobile terminal uses the built-in antenna for wireless communication. If the connection is successful, the mobile terminal switches to an external antenna on the protected rear case for wireless communication.
  • the signal strength is at least one of a received signal strength indicator RSSI, a received signal code power RSCP, and a chip energy/interference density Ec/Io.
  • the embodiment of the present invention further provides a mobile terminal, where the mobile terminal includes a mobile terminal body and a protective back shell; the protective back shell is fastened to the mobile terminal body, and the two are connected through an electrical connection point; An external antenna is disposed on the protective rear case; wherein
  • the mobile terminal body is configured to detect a signal strength in the current environment, and control the mobile terminal to perform wireless communication using the built-in antenna or the external antenna according to the detected signal strength value;
  • Protecting the rear case configured to provide protection for the mobile terminal body, and providing an external antenna for the mobile terminal body;
  • An external antenna configured to receive and transmit signals.
  • the mobile terminal body includes a communication module unit, a signal strength detecting unit, a radio frequency circuit control unit, an antenna selecting unit, and an external antenna detecting unit;
  • a communication module unit configured to receive and transmit signals through a built-in antenna or an external antenna of the mobile terminal body itself;
  • a signal strength detecting unit configured to detect a signal strength in a current environment, and send the detected signal strength value to a radio frequency circuit control unit;
  • the external antenna detecting unit is configured to detect whether the external antenna on the protected back shell is successfully connected to the mobile terminal body, and feed the detection result to the RF circuit control unit;
  • the RF circuit control unit is configured to send an instruction to switch the antenna to the antenna selection unit according to the signal strength value sent by the signal strength detecting unit and the detection result of the external antenna detecting unit; the antenna selecting unit is configured to send according to the RF circuit control unit The instruction to switch the antenna performs antenna switching.
  • the mobile terminal body further includes an electrical connection point 1 configured to electrically connect the radio frequency path of the mobile terminal main body with the electrical connection point 2 on the protection rear case;
  • the protection rear case further includes an electrical connection Point two is configured to electrically connect the external antenna to an electrical connection point on the mobile terminal body.
  • the electrical connection point 1 and the electrical connection point 2 are probes or metal domes.
  • the external antenna is a monopole antenna, or a helical antenna, or a PCB printed helical antenna, or a whip antenna.
  • the antenna selection unit switches between selecting an internal antenna or an external antenna through an antenna selection switch.
  • the radio frequency circuit control unit is further configured to send to the antenna selection unit.
  • the information of the switching antenna is reported to the application processor AP side.
  • the mobile terminal and the communication method thereof are provided in the embodiment of the present invention.
  • the embodiment of the present invention uses the external antenna as a part of the mobile terminal protection back shell, and more conforms to the usage habits of the mobile terminal user, so that the mobile The user does not need to spend extra effort to carry or assemble the external antenna.
  • the protective back cover in the embodiment of the present invention provides an external antenna to the mobile terminal while protecting the mobile terminal, and the external antenna serves as a protective rear case. A part of the signal is also well protected and easy to use.
  • the embodiment of the present invention can intelligently switch between the built-in antenna and the external antenna of the mobile terminal according to the strength of the communication signal strength in the current environment. In the case of weak strength, the effective use of the external antenna has a wide frequency band, stable reception signal, and high antenna gain, which not only enables good communication of the mobile terminal under weak signals, but also has low cost and is easy to implement.
  • FIG. 1 is a schematic flowchart of a communication method of a mobile terminal according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a structure of a mobile terminal according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an implementation principle of an antenna selection switch according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of an implementation process of a mobile terminal communication method according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a mobile terminal in a specific application environment according to an embodiment of the present invention. detailed description
  • the basic idea of the embodiment of the present invention is: an external antenna is disposed in the protective back casing of the mobile terminal, and the communication antenna used by the mobile terminal is automatically selected according to the detection of the strength of the communication signal in the current environment by the mobile terminal.
  • FIG. 1 is a schematic flowchart of a mobile terminal communication method according to an embodiment of the present invention. As shown in FIG. 1, the mobile terminal communication method includes the following steps:
  • Step 101 The mobile terminal detects a signal strength in a current environment.
  • the signal strength may be measured by using indicators such as RSSI, RSCP, and Ec/Io.
  • Step 102 The mobile terminal determines the strength of the signal strength in the current communication environment according to the detected signal strength value. If the signal strength is good, Step 103 is performed; if the signal strength is weak, step 104 is performed;
  • the method for determining the strength of the signal strength in the current environment is: if the received received signal strength indication (RSI, Received Signal Strength Indication) value is greater than -102 dBm, it is determined that the current ambient signal strength is good; if the received RSSI value is If it is less than -102dBm, it is determined that the current environmental signal strength is weak.
  • the threshold value of the strength of the RSSI signal can be preset in the mobile terminal, and is not limited to -102 dBm.
  • the indicator strength of the signal strength can be measured by using the RSSI indicator, and the receiving signal can also be used. Number power (RSCP, Received Signal Code Power), chip energy/interference density (Ec/Io) and other indicators.
  • Step 103 The mobile terminal performs wireless communication by using the built-in antenna provided by the mobile terminal, and ends the current processing flow;
  • Step 104 detecting whether the external antenna on the rear shell of the mobile terminal is successfully connected to the mobile terminal body, if it is not successfully connected, return to step 103; if the connection is successful, step 105 is performed;
  • the successful connection means that the connection is successful physically, that is, the electrical connection is connected;
  • Step 105 The mobile terminal performs wireless communication using an external antenna on the protected rear case.
  • the antenna selection switch provided inside the mobile terminal is used to control connection to the determined antenna, and then the signal is transmitted and received by using the determined antenna.
  • the mobile terminal communication includes: a mobile terminal main body 21 and a protective rear case 22, and the protective rear case 22 is fastened to the mobile terminal main body 21, and the two are connected by an electrical connection point; further, the protective rear case 22 is provided with an external antenna. 23 ; Among them,
  • the mobile terminal body 21 is configured to detect a signal strength in a current environment, and control the mobile terminal to perform wireless communication using the built-in antenna or the external antenna 23 according to the detected signal strength value.
  • the mobile terminal body 21 further includes a communication module unit 211, a signal strength detecting unit 212, an external antenna detecting unit 213, a radio frequency circuit control unit 214, an antenna selecting unit 215, and an electrical connection point 216;
  • the communication module unit 211 is configured to receive and transmit signals through the built-in antenna or the external antenna 23 of the mobile terminal body 21 itself;
  • the signal includes a voice signal, a video signal, a text signal, an image signal, and the like.
  • the signal strength detecting unit 212 is configured to detect the strength of the signal strength in the current environment, and send the detected signal strength value to the RF circuit control unit 214;
  • the specific operation is: determining the current signal strength according to the signal strength of the signal sent by the nearby base station detected by the mobile terminal body 21, and then transmitting the detected signal strength value to the radio frequency circuit control unit 214 through the I2C interface.
  • the RSSI indicator can be used to measure the signal strength
  • RSCP, Ec/Io and other indicators can also be used to measure the signal strength.
  • the external antenna detecting unit 213 is configured to detect whether the external antenna 23 on the protected back shell successfully accesses the mobile terminal main body 21, and feed back the detection result to the radio frequency circuit control unit 214; here, when protecting the rear shell 22 and After the mobile terminal body 21 is fastened, the electrical connection point 216 on the mobile terminal body 21 is connected to the electrical connection point 221 on the protective rear case 22. At this time, the level of the electrical connection point 216 is pulled low by the height; Correspondingly, the external antenna detecting unit 213 can determine whether the external antenna 23 is connected by detecting the level of the electrical connection point 216 of the mobile terminal body, and then access the external antenna to access the state detection result through the I2C interface. Feedback to RF Circuit control unit 214.
  • the RF circuit control unit 214 is configured to send an instruction to switch the antenna to the antenna selection unit 215 according to the signal strength value sent by the signal strength detecting unit 212 and the detection result of the external antenna detecting unit 213;
  • the radio frequency circuit control unit 214 determines that the signal strength in the current environment is good, and sends the antenna selection unit 215 to the mobile terminal through the I2C interface.
  • the instruction of the internal antenna of the terminal body itself receives and transmits a signal by using the built-in antenna of the mobile terminal; when the RSSI value transmitted by the signal strength detecting unit 212 through the I2C interface is less than the threshold value of -102 dBm, the RF circuit control unit 214 determines the current environment.
  • the signal strength is weak.
  • the radio frequency circuit control unit 214 sends the antenna selecting unit 215 to the antenna selecting unit 215. Sending an instruction to switch to the external antenna 23 through the I2C interface, notifying the antenna selection unit 215 to switch to the external antenna 23 to receive and transmit a signal; if the external antenna detecting unit 213 reports that the external antenna is not successfully accessed, the radio frequency is Circuit control unit 214 Instruction to switch transmission antennas, using the mobile terminal body to maintain the internal antenna receiving and transmitting signals;
  • the RF circuit control unit 214 sends an instruction to switch the antenna to the antenna selection unit 215, and reports the information of the switching antenna to the application processor (AP), and prompts the user to prepare accordingly through the user interface (UI), for example,
  • the AP side gives a prompt to the user through the UI, and the user can pull out the external antenna such as the rod antenna; when the transmission is switched to the internal antenna of the mobile terminal body
  • the RSSI signal strength determination threshold is preset in the mobile terminal by the mobile terminal manufacturer, and is not limited to -102 dBm.
  • the antenna selection unit 215 is configured to switch according to the radio frequency circuit control unit 214 Antenna instructions for antenna switching;
  • the antenna selection unit 215 after the antenna selection unit 215 receives the instruction of the radio frequency circuit control unit 214 to switch to the external antenna 23, the antenna selection unit 215 sends a control signal through a General Purpose Input/Output (GPIO) interface.
  • the antenna selection switch is switched to the external antenna 23; after the antenna selection unit 215 receives an instruction from the radio frequency circuit control unit 214 to switch to the internal antenna of the mobile terminal body, the antenna selection unit 214 sends a control signal to switch the antenna selection switch to The built-in antenna of the mobile terminal body 21.
  • GPIO General Purpose Input/Output
  • the antenna selection switch is composed of a main transceiver communication path pl, a switch logic control terminal p2, a connected internal antenna terminal p3, and a connected external antenna terminal p4, as shown in FIG.
  • the specific control is realized by the logic level, that is, the switching logic control terminal p2 uses the logic level of the input high and low as the control signal selected by the antenna.
  • a two-to-one switch of a logic control port can be used, for example: logic high means that the built-in antenna is turned on, and logic low means that the external one is selected.
  • Antenna which logic can be set by the user.
  • multiple logic control interface switches can also be used to implement the antenna selection function. Which antenna is selected by the switch, the transceiver module of the mobile terminal communicates with the selected antenna, and uses the selected antenna to transmit and receive signals to complete the wireless. Communication.
  • the electrical connection point 216 is configured to electrically connect the RF path of the mobile terminal body 21 with the electrical connection point 221 on the protective back shell 22 to form a complete signal transmission and reception with the external antenna 22 on the protective back shell.
  • the electrical connection point 216 may be a device such as a probe or a metal dome that can be configured to be electrically connected.
  • the protective rear case 22 is configured to provide protection for the mobile terminal body 21 and to provide an external antenna 23 for the mobile terminal body 1.
  • the protective rear case 22 further includes: an electrical connection point 221 and an external antenna 23; wherein The electrical connection point 221 is configured to electrically connect the external antenna 23 to the electrical connection point 216 on the mobile terminal body 21 to form a complete signal transceiving system with the radio frequency circuit of the mobile terminal body 21;
  • the electrical connection point 2 221 may be a metal probe, a metal dome or the like that can be configured to electrically connect.
  • the external antenna 23 is configured to receive and transmit a signal
  • the type of the external antenna 23 may be a monopole antenna, a helical antenna, a PCB printed helical antenna, or a whip antenna.
  • the communication module unit 211, the signal strength detecting unit 212, the external antenna detecting unit 213, the radio frequency circuit control unit 214, and the antenna selecting unit 215 may be implemented by a central processing unit (CPU) of a mobile terminal, or a digital signal processor ( DSP, Digital Signal Processor) or Field Programmable Gate Array (FPGA).
  • CPU central processing unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • the external antenna 23 has various types of options, and the shapes of different types of antennas are different, it is possible to determine how to set the external antenna on the protective back shell according to the type of the external antenna used. , for example: can be mounted on the protective back shell, or attached to the protective back shell, or embedded in the protective back shell; and protect the electrical connection point 221 on the back shell 22 and the external antenna 23 on the protective back shell 22 Electrically connected.
  • FIG. 4 is a schematic flowchart of a mobile terminal communication method according to an embodiment of the present invention. As shown in FIG. 4, the mobile terminal communication method in this embodiment includes the following steps:
  • Step S401 The signal strength detecting unit 212 of the mobile terminal detects the signal strength indicator RSSI in the current environment, and sends the detected signal strength RSSI value to the radio frequency circuit control unit 214 through the I2C bus.
  • Step S402 The external antenna detecting unit 213 determines whether the external antenna 23 on the protected back shell is successfully accessed by detecting the level of the electrical connection point 216, and sends the judgment result to the RF circuit control unit through the I2C interface. 214. In actual applications, the execution order of steps S401 and S402 can be reversed.
  • Step S403 The RF circuit control unit 214 sends a corresponding instruction to switch the antenna according to the signal strength indicator RSSI value sent by the signal strength detecting unit 212 and the external antenna access state fed back by the external antenna detecting unit 213.
  • the information of the switching antenna is reported to the AP side, and the AP side gives an indication to the user through the UI;
  • step 404 is performed; if the RSSI value is less than -102 dBm and the external antenna is accessed, step 405 is performed.
  • the RF circuit control unit 214 determines the signal strength indicator RSSI value sent by the signal strength detecting unit 212. If the received RSSI value is greater than -102 dBm, it is determined that the signal strength in the current environment is good, and the RF circuit control unit 214 The antenna selection unit 215 issues an instruction to switch to the internal antenna of the mobile terminal body, and receives and transmits a signal by using the built-in antenna. If the received RSSI value is less than -102 dBm, it is determined that the signal strength is weak in the current environment, and is reported according to the external antenna detecting unit 213.
  • the detection result is as follows: If the external antenna detecting unit 213 reports that the external antenna 23 is successfully accessed, the radio frequency circuit control unit 214 sends an instruction to the antenna selection unit 215 to switch to the external antenna through the I2C interface, and notifies The antenna selection unit 215 switches to the external antenna 23; if the external antenna detection unit 213 reports that the external antenna 23 is not successfully accessed, the RF circuit control unit 214 does not send an instruction to switch the antenna, and maintains the built-in using the mobile terminal body. Antenna receives and transmits signalsThe RF circuit control unit 214 sends an instruction to switch the antenna to the antenna selection unit 215 and also reports it to the AP side, and prompts the user through the UI: corresponding preparation.
  • Step S404 The antenna selection unit 215 sends a control signal to switch the antenna selection switch to the internal antenna of the mobile terminal body, performs wireless communication using the built-in antenna, and ends the current processing flow.
  • Step S405 The antenna selection unit 215 sends a control signal through the GPIO interface to switch the antenna selection switch to the external antenna 23 of the protection rear case, and performs wireless communication by using an external antenna.
  • FIG. 5 is a schematic structural diagram of a mobile terminal in a specific application environment according to an embodiment of the present invention. As shown in FIG. 5, the mobile terminal includes a mobile terminal body 21, a protection back shell 22, an electrical connection point 216, and an electrical connection point 2 221 and an external antenna 23.
  • An electrical connection point 216 is disposed on one side of the mobile terminal body 21, and a radio frequency path for the mobile terminal body 21 is electrically connected to the electrical connection point 221 on the protective rear case 22 so as to be externally attached to the protective rear case 22.
  • the antenna 23 constitutes a complete signal transceiving system.
  • the external antenna 23 and the electrical connection point 221 are disposed on the same side of the protective rear case 22 for electrically connecting the external antenna 23 to the electrical connection point 216 on the mobile terminal body 21 so as to be connected to the mobile terminal body 21
  • the RF circuit forms a complete signal transceiving system.
  • the electrical connection point 216 and the electrical connection point 2 221 may be various types of devices that can be used for electrical connection, such as probes, metal domes, and the like.
  • the external antenna 23 shown in FIG. 5 is a whip antenna.
  • the external antenna 23 can also be a plurality of types of antennas such as a monopole antenna, a helical antenna, and a PCB printed spiral antenna.
  • an external antenna is disposed in the protection back shell of the mobile terminal; the mobile terminal detects the signal strength in the current environment; and controls the mobile terminal to perform wireless communication using the built-in antenna or the external antenna according to the detected signal strength value, In this way, good communication can be achieved in an environment with poor signal quality, thereby improving communication quality.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种移动终端通信方法,在移动终端的保护后壳中设置外置天线;所述方法包括:移动终端检测当前环境下的信号强度;根据检测到的信号强度值控制移动终端使用内置天线或外置天线进行无线通信。本发明还同时公开一种移动终端。采用本发明,能在信号质量不好的环境中实现良好地通信,从而提高通信质量。

Description

一种移动终端及其通信方法 技术领域
本发明涉及移动终端技术领域, 尤其涉及一种移动终端及其通信方法。 背景技术
伴随着现代通信技术的飞速发展以及人们信息量需求的增大, 手机等 移动通信设备已经逐渐成为人们日常生活中不可缺少的通信工具。 而用户 作为移动终端的使用者, 除了要求移动终端具有其传统的便携性以外, 对 手机等移动终端的外观、 体积等也提出了更高的要求, 这就造就了目前市 场上移动终端外观时尚、 体积小巧、 极致纤薄的特点。 但是, 体积的减小、 厚度的变薄, 都将会导致通信产品天线性能的下降, 从而对移动终端的通 信造成影响, 特别是在信号覆盖不是很好的区域, 比如: 城市中因为建筑 物而形成的信号盲区、 农村以及野外区域, 手机等移动终端如何在这些弱 信号区域实现良好的通信, 成为移动终端领域一个急需解决的问题。
目前, 外置天线的引入是解决弱信号区域无法良好通信问题的一个有 效方法, 但是, 现有的技术方案要么需要临时由附属小物件组装成可用的 外置天线, 要么需要使用者去判定当前环境下通信信号的强度, 人为判定 是否需要接入外置天线, 如果需要就将携带的外置天线接入移动终端, 不 需要时就将外置天线从移动终端上取出。 并且, 一旦接入外置天线之后, 不管当前环境下通信信号强度强弱, 都只能使用外置天线进行通信, 要想 使用移动终端自身天线, 就必须要手动拔出外置天线, 不能根据当前环境 下通信信号强弱智能地选用内置或外置天线进行通信, 这样, 降低了用户 体验。 另外, 现有技术中, 外置天线经过多次的物理接入移动终端与拔出 移动终端, 物理接入接口容易磨损, 外置天线的可靠性及有效使用时效将 面临考验; 还有, 外置天线在不使用时需要随身携带, 这也将使用户体验 大打折扣。 发明内容
有鉴于此, 本发明实施例的主要目的在于提供一种移动终端及其通信 方法, 能在信号质量不好的环境中实现良好地通信, 从而提高通信质量。
为达到上述目的, 本发明实施例的技术方案是这样实现的:
本发明实施例提供了一种移动终端通信方法, 在移动终端的保护后壳 中设置外置天线; 所述方法包括:
移动终端检测当前环境下的信号强度;
根据检测到的信号强度值控制移动终端使用内置天线或外置天线进行 无线通信。
上述方案中, 所述根据检测到的信号强度值控制移动终端使用内置天 线或外置天线进行无线通信为:
判断当前接收到的信号强度值是否大于设定的门限值, 如果大于, 则 移动终端使用内置天线进行无线通信; 如果小于等于, 则判断外置天线是 否与移动终端主体成功连接, 如果未成功连接, 则移动终端使用所述内置 天线进行无线通信, 如果成功连接, 则移动终端切换到保护后壳上的外置 天线进行无线通信。
上述方案中, 所述信号强度为接收信号强度指示 RSSI、 接收信号码功 率 RSCP、 码片能量 /干扰语密度 Ec/Io中至少一种。
本发明实施例还提供了一种移动终端, 所述移动终端包括移动终端主 体和保护后壳; 所述保护后壳扣合于所述移动终端主体上, 两者通过电气 连接点连通; 所述保护后壳上设置有外置天线; 其中,
移动终端主体, 配置为检测当前环境下的信号强度, 并根据检测到的 信号强度值控制移动终端使用内置天线或外置天线进行无线通信; 保护后壳, 配置为为所述移动终端主体提供保护, 并为所述移动终端 主体提供外置天线;
外置天线, 配置为接收和发送信号。
上述方案中, 所述移动终端主体包括通信模块单元、 信号强度检测单 元、 射频电路控制单元、 天线选择单元、 外置天线检测单元; 其中,
通信模块单元, 配置为通过移动终端主体自身的内置天线或外置天线 进行接收和发送信号;
信号强度检测单元, 配置为检测当前环境下信号强度, 并将检测到的 信号强度值发送给射频电路控制单元;
外置天线检测单元, 配置为检测保护后壳上的外置天线是否成功接入 移动终端主体, 并将检测结果反馈给射频电路控制单元;
射频电路控制单元, 配置为根据信号强度检测单元发来的信号强度值 和外置天线检测单元的检测结果向天线选择单元发送切换天线的指令; 天线选择单元, 配置为根据射频电路控制单元发来的切换天线的指令 进行天线切换。
上述方案中, 所述移动终端主体还包括电气连接点一, 配置为将所述 移动终端主体的射频通路与保护后壳上的电气连接点二进行电气连接; 所述保护后壳还包括电气连接点二, 配置为将外置天线与所述移动终 端主体上的电气连接点一进行电气连接。
上述方案中, 所述电气连接点一、 电气连接点二为探针、 或金属弹片。 上述方案中, 所述外置天线为单极子天线、 或螺旋天线、 或 PCB印制 螺旋天线、 或拉杆天线。
上述方案中, 所述天线选择单元通过天线选择开关切换选择内置天线 或外置天线。
上述方案中, 所述射频电路控制单元, 还配置为在给天线选择单元发 送切换天线指令的同时, 将切换天线的信息上报给应用处理器 AP侧。
本发明实施例所提供的移动终端及其通信方法, 与现有技术相比, 本 发明实施例将外置天线作为移动终端保护后壳的一部分, 更符合移动终端 使用者的使用习惯, 使移动用户无需花额外的精力去携带或组装外置天线; 并且, 本发明实施例中的保护后壳在保护移动终端的同时又给移动终端提 供了外置天线, 且外置天线作为保护后壳的一部分也得到了很好的保护, 易用性好; 同时, 本发明实施例能够根据当前环境下通信信号强度的强弱, 智能地在移动终端的内置天线和外置天线之间切换, 在信号强度弱的情况 下有效利用外置天线频带范围宽、 接收信号稳定、 天线增益高的特点, 不 仅能实现移动终端在弱信号下的良好通信, 而且成本低廉、 易于实现。 附图说明
图 1为本发明实施例一种移动终端通信方法的流程示意图;
图 2为本发明实施例一种移动终端的组成结构示意图;
图 3为本发明实施例中天线选择开关的实现原理示意图;
图 4为本发明实施例一种移动终端通信方法的实现流程示意图; 图 5为本发明实施例一种移动终端在具体应用环境中的结构示意图。 具体实施方式
本发明实施例的基本思想为: 在移动终端的保护后壳中设置外置天线, 根据移动终端对当前环境下通信信号强弱的检测, 自动选择移动终端所使 用的通信天线。
具体的, 当检测到信号良好的情况下, 使用移动终端自身带有的内置 天线接收和发送电磁波信号, 进行无线通信; 当检测到信号弱的情况下, 切换到外置天线进行电磁波信号的发送和接收, 完成无线通信, 从而实现 弱信号下移动终端的良好通信。 图 1为本发明实施例一种移动终端通信方法的流程示意图, 如图 1所 示, 该移动终端通信方法包括以下步骤:
步骤 101 : 移动终端检测当前环境下的信号强度;
其中, 所述信号强度可以采用 RSSI、 RSCP、 Ec/Io等指标来衡量; 步骤 102: 移动终端根据检测到的信号强度值, 判断当前通信环境下信 号强度的强弱, 如果信号强度良好, 则执行步骤 103 ; 如果信号强度弱, 则 执行步骤 104;
具体的, 当前环境下信号强度强弱的判定方法为: 如果接收到的接收 信号强度指示( RSSI, Received Signal Strength Indication )值大于 -102dBm, 则判定当前环境信号强度良好; 如果接收到的 RSSI值小于 -102dBm, 则判 定当前环境信号强度弱。 其中, 所述 RSSI信号强弱判定的门限值可在移动 终端中预先设置, 不局限于为 -102dBm; 另外, 信号强度强弱的指标, 除了 可以采用 RSSI指标来衡量, 还可以采用接收信号码功率(RSCP, Received Signal Code Power ), 码片能量 /干扰语密度(Ec/Io )等指标来衡量。
步骤 103: 移动终端使用自身带有的内置天线进行无线通信, 结束当前 处理流程;
步骤 104:检测移动终端保护后壳上的外置天线是否与移动终端主体成 功连接, 如果未成功连接, 则返回步骤 103 ; 如果成功连接, 则执行步骤 105;
这里, 所述成功连接是指物理上已连接成功, 即电气连接已连通; 步骤 105: 移动终端使用保护后壳上的外置天线进行无线通信。
上述处理流程中, 确定使用内置天线还是外置天线后, 具体是通过移 动终端内部设置的天线选择开关来控制连接到确定的天线, 之后利用确定 的天线进行信号收发。
图 2为本发明实施例一种移动终端的组成结构示意图, 如图 2所示, 该移动终端通信包括: 移动终端主体 21以及保护后壳 22, 保护后壳 22扣 合于移动终端主体 21上, 两者通过电气连接点连通; 进一步的, 保护后壳 22上设置有外置天线 23 ; 其中,
所述移动终端主体 21, 配置为检测当前环境下的信号强度, 并根据检 测到的信号强度值控制移动终端使用内置天线或外置天线 23 进行无线通 信。
进一步的, 移动终端主体 21还包括通信模块单元 211、 信号强度检测 单元 212、 外置天线检测单元 213、 射频电路控制单元 214、 天线选择单元 215、 电气连接点一 216; 其中,
所述通信模块单元 211, 配置为通过移动终端主体 21 自身的内置天线 或外置天线 23接收和发送信号;
这里, 所述信号包括语音信号、 视频信号、 文字信号、 图像信号等。 所述信号强度检测单元 212, 配置为检测当前环境下信号强度的强弱, 并将检测到的信号强度值发送给射频电路控制单元 214;
这里, 具体操作为: 根据移动终端主体 21检测到的附近基站发送的信 号的信号强度来衡定当前信号强弱, 然后将检测到的信号强度值通过 I2C 接口发送给射频电路控制单元 214。 其中, 可使用 RSSI指标来衡量信号强 度, 还可以采用 RSCP、 Ec/Io等指标来衡量信号强度。
所述外置天线检测单元 213, 配置为检测保护后壳上的外置天线 23是 否成功接入移动终端主体 21, 并将检测结果反馈给射频电路控制单元 214; 这里, 当保护后壳 22与移动终端主体 21扣合后, 移动终端主体 21上 电气连接点一 216与保护后壳 22上的电气连接点二 221连接, 此时, 电气 连接点一 216处的电平由高被拉低; 相应的, 外置天线检测单元 213通过 检测移动终端主体的电气连接点一 216处的电平高低, 即可判断外置天线 23是否接入, 然后通过 I2C接口将外置天线接入状态检测结果反馈给射频 电路控制单元 214。
所述射频电路控制单元 214,配置为根据信号强度检测单元 212发来的 信号强度值和外置天线检测单元 213的检测结果向天线选择单元 215发送 切换天线的指令;
具体的, 当信号强度检测单元 212通过 I2C接口传送过来的 RSSI值大 于门限值 -102dBm时, 射频电路控制单元 214判定当前环境下信号强度良 好, 通过 I2C接口给天线选择单元 215发送切换到移动终端主体自身的内 置天线的指令, 采用移动终端的内置天线接收和发送信号; 信号强度检测 单元 212通过 I2C接口传送过来的 RSSI值小于门限值 -102dBm时,射频电 路控制单元 214判定当前环境下信号强度弱, 那么, 根据外置天线检测单 元 213上报的检测结果做出如下操作: 如果外置天线检测单元 213上报结 果为外置天线成功接入, 则射频电路控制单元 214向天线选择单元 215通 过 I2C接口发送一个切换到外置天线 23的指令, 通知天线选择单元 215切 换到外置天线 23接收和发送信号; 如果外置天线检测单元 213上报结果为 外置天线未成功接入, 则射频电路控制单元 214 不发送切换天线的指令, 维持使用移动终端主体的内置天线接收和发送信号;
射频电路控制单元 214在向天线选择单元 215发送切换天线的指令同 时, 会将切换天线的信息上报给应用处理器(AP, Application Processor ) 侧, 通过用户界面 (UI )提示用户做相应准备, 比如: 当射频电路控制单 元 214发送切换到外置天线的指令时, AP侧通过 UI向用户给出提示, 用 户可以将外置天线如拉杆天线拉出; 当发送切换到移动终端主体的内置天 线的指令时, 用户可以将外置天线如拉杆天线收缩到保护后壳内; 这里的 RSSI信号强弱判定门限值由移动终端厂商预置在移动终端中, 不局限于为 -102dBm。
所述天线选择单元 215,配置为根据射频电路控制单元 214发来的切换 天线的指令进行天线切换;
具体的, 当天线选择单元 215接收到射频电路控制单元 214发来的切 换到外置天线 23的指令后,天线选择单元 215通过通用输入 /输出( GPIO , General Purpose Input Output )接口发送控制信号将天线选择开关切换到外 置天线 23; 当天线选择单元 215接收到射频电路控制单元 214发来的切换 到移动终端主体的内置天线的指令后, 天线选择单元 214发送控制信号将 天线选择开关切换到移动终端主体 21的内置天线。
这里, 天线选择开关由主收发通信通路 pl、 开关逻辑控制端 p2、 连通 内置天线端 p3、 连通外置天线端 p4组成, 如图 3所示。 移动终端主体 21 通过天线选择开关来接通两个天线之一时, 具体控制通过逻辑电平来实现, 即开关逻辑控制端 p2通过输入高低不同的逻辑电平作为天线选择的控制信 号。 具体的, 由于有内置天线和外置天线两种天线可选, 使用一个逻辑控 制口的二选一开关即可实现, 比如: 逻辑高代表选择接通内置天线, 逻辑 低代表选择接通外置天线, 具体使用何种逻辑可由用户设定。 当然, 实际 应用中也可以使用多个逻辑控制接口的开关来实现天线选择功能, 开关选 择哪个天线, 移动终端的收发模块就与所选择的天线连通, 并使用所选择 的天线收发信号, 完成无线通信。
所述电气连接点一 216, 配置为将移动终端主体 21的射频通路与保护 后壳 22上的电气连接点二 221进行电气连接, 以便与保护后壳上的外置天 线 22构成完整的信号收发系统;
其中, 电气连接点一 216可以是探针、 金属弹片等可配置为进行电气 连接的各类器件。
所述保护后壳 22, 配置为为移动终端主体 21提供保护, 并为移动终端 主体 1提供外置天线 23。
具体的,保护后壳 22还包括: 电气连接点二 221和外置天线 23 ;其中, 所述电气连接点二 221,配置为将外置天线 23与移动终端主体 21上的 电气连接点一 216进行电气连接, 以便与移动终端主体 21的射频电路构成 完整的信号收发系统;
其中, 所述电气连接点二 221 可以是金属探针、 金属弹片等可配置为 进行电气连接的各类器件。
所述外置天线 23, 配置为接收和发送信号;
这里, 所述外置天线 23的类型可以是单极子天线、 螺旋天线、 PCB印 制螺旋天线、 或拉杆天线等。
上述通信模块单元 211、信号强度检测单元 212、外置天线检测单元 213、 射频电路控制单元 214 和天线选择单元 215 可由移动终端的中央处理器 ( CPU, Central Processing Unit ), 或数字信号处理器(DSP, Digital Signal Processor )或可编程门阵列 ( FPGA, Field Programmable Gate Array )实现。
实际应用中, 由于外置天线 23有多种可选的类型, 类型不同天线的形 状也不同, 所以, 可以根据所使用外置天线的类型, 来确定如何将外置天 线设置于保护后壳上, 比如: 可安装在保护后壳上、 或贴在保护后壳上、 或镶嵌在保护后壳上;且保护后壳 22上的电气连接点二 221与保护后壳 22 上的外置天线 23电气连通。
图 4为本发明实施例一种移动终端通信方法的实现流程示意图,如图 4 所示, 本实施例中移动终端通信方法包括以下步骤:
步骤 S401 : 移动终端的信号强度检测单元 212检测当前环境下的信号 强度指标 RSSI, 并将所检测到的信号强度 RSSI值通过 I2C总线发送给射 频电路控制单元 214。
步骤 S402: 外置天线检测单元 213通过检测电气连接点一 216处电平 的高低, 判断保护后壳上的外置天线 23是否成功接入, 并将判断结果通过 I2C接口发送给射频电路控制单元 214。 实际应用中, 步骤 S401、 S402的执行顺序可以调换。
步骤 S403 : 射频电路控制单元 214根据信号强度检测单元 212发来的 信号强度指标 RSSI值、 以及外置天线检测单元 213反馈的外置天线接入状 态, 发出相应的切换天线的指令;
进一步的, 在发送切换天线的指令同时, 将切换天线的信息上报给 AP 侧, AP侧通过 UI向用户给出指示;
这里,如果 RSSI值大于 -102dBm或外置天线未接入,则执行步骤 404; 如果 RSSI值小于 -102dBm且外置天线接入, 则执行步骤 405。
具体的, 射频电路控制单元 214对信号强度检测单元 212发来的信号 强度指标 RSSI值做出判定, 如果接收到的 RSSI值大于 -102dBm, 判定当 前环境下信号强度良好, 射频电路控制单元 214向天线选择单元 215发出 切换到移动终端主体的内置天线的指令, 采用内置天线接收和发送信号; 如果接收到的 RSSI值小于 -102dBm, 判定当前环境下信号强度弱, 根据外 置天线检测单元 213 上报的检测结果做出如下操作: 如果外置天线检测单 元 213上报结果为外置天线 23成功接入, 则射频电路控制单元 214向天线 选择单元 215通过 I2C接口发送切换到外置天线的指令, 通知天线选择单 元 215切换到外置天线 23 ; 如果外置天线检测单元 213上报结果为外置天 线 23未成功接入, 则射频电路控制单元 214不发送切换天线的指令, 维持 使用移动终端主体的内置天线接收和发送信号。 射频电路控制单元 214在 向天线选择单元 215发送切换天线的指令同时还上报给 AP侧, 通过 UI提 示用户^:相应准备。
步骤 S404: 天线选择单元 215发送控制信号将天线选择开关切换到移 动终端主体的内置天线, 采用内置天线进行无线通信, 结束当前处理流程。
步骤 S405: 天线选择单元 215通过 GPIO接口发送控制信号将天线选 择开关切换到保护后壳的外置天线 23, 采用外置天线进行无线通信。 图 5 为本发明实施例一种移动终端在具体应用环境中的结构示意图, 如图 5所示, 该移动终端包括移动终端主体 21、 保护后壳 22、 电气连接点 一 216、 电气连接点二 221和外置天线 23。
电气连接点一 216设置在移动终端主体 21的一侧, 用于移动终端主体 21的射频通路与保护后壳 22上的电气连接点二 221进行电气连接,以便与 保护后壳 22上的外置天线 23构成完整的信号收发系统。
外置天线 23和电气连接点二 221设置在保护后壳 22的同一侧, 用于 将外置天线 23与移动终端主体 21上的电气连接点一 216进行电气连接, 以便与移动终端主体 21的射频电路构成完整的信号收发系统。
其中, 所述电气连接点一 216和电气连接点二 221都可以是探针、 金 属弹片等可用于进行电气连接的各类器件。
图 5 中给出的外置天线 23为拉杆天线, 在具体应用中, 外置天线 23 还可以是单极子天线、 螺旋天线、 PCB印制螺旋天线等多种类型的天线。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。 凡在本发明的精神和范围之内所作的任何修改、 等同替换和改进 等, 均包含在本发明的保护范围之内。 工业实用性
本发明实施例中, 在移动终端的保护后壳中设置外置天线; 移动终端 检测当前环境下的信号强度; 根据检测到的信号强度值控制移动终端使用 内置天线或外置天线进行无线通信, 如此, 能在信号质量不好的环境中实 现良好地通信, 从而能提高通信质量。

Claims

权利要求书
1、 一种移动终端通信方法, 在移动终端的保护后壳中设置外置天线; 所述方法包括:
移动终端检测当前环境下的信号强度;
根据检测到的信号强度值控制移动终端使用内置天线或外置天线进行 无线通信。
2、 根据权利要求 1所述的方法, 其中, 所述根据检测到的信号强度值 控制移动终端使用内置天线或外置天线进行无线通信为:
判断当前接收到的信号强度值是否大于设定的门限值, 如果大于, 则 移动终端使用内置天线进行无线通信; 如果小于等于, 则判断外置天线是 否与移动终端主体成功连接, 如果未成功连接, 则移动终端使用所述内置 天线进行无线通信, 如果成功连接, 则移动终端切换到保护后壳上的外置 天线进行无线通信。
3、 根据权利要求 1或 2所述的方法, 其中, 所述信号强度为接收信号 强度指示 RSSI、 接收信号码功率 RSCP、 码片能量 /干扰谱密度 Ec/Io中至 少一种。
4、 一种移动终端, 所述移动终端包括移动终端主体和保护后壳; 所述 保护后壳扣合于所述移动终端主体上, 两者通过电气连接点连通; 所述保 护后壳上设置有外置天线; 其中,
移动终端主体, 配置为检测当前环境下的信号强度, 并根据检测到的 信号强度值控制移动终端使用内置天线或外置天线进行无线通信;
保护后壳, 配置为为所述移动终端主体提供保护, 并为所述移动终端 主体提供外置天线;
外置天线, 配置为接收和发送信号。
5、 根据权利要求 4所述的移动终端, 其中, 所述移动终端主体包括通 信模块单元、 信号强度检测单元、 射频电路控制单元、 天线选择单元、 外 置天线检测单元; 其中,
通信模块单元, 配置为通过移动终端主体自身的内置天线或外置天线 进行接收和发送信号;
信号强度检测单元, 配置为检测当前环境下信号强度, 并将检测到的 信号强度值发送给射频电路控制单元;
外置天线检测单元, 配置为检测保护后壳上的外置天线是否成功接入 移动终端主体, 并将检测结果反馈给射频电路控制单元;
射频电路控制单元, 配置为根据信号强度检测单元发来的信号强度值 和外置天线检测单元的检测结果向天线选择单元发送切换天线的指令; 天线选择单元, 配置为根据射频电路控制单元发来的切换天线的指令 进行天线切换。
6、 根据权利要求 5所述的移动终端, 其中, 所述移动终端主体还包括 电气连接点一, 用于配置为将所述移动终端主体的射频通路与保护后壳上 的电气连接点二进行电气连接;
所述保护后壳还包括电气连接点二, 配置为将外置天线与所述移动终 端主体上的电气连接点一进行电气连接。
7、 根据权利要求 6所述的移动终端, 其中, 所述电气连接点一、 电气 连接点二为探针、 或金属弹片。
8、 根据权利要求 4至 7任一项所述的移动终端, 其中, 所述外置天线 为单极子天线、 或螺旋天线、 或 PCB印制螺旋天线、 或拉杆天线。
9、 根据权利要求 5、 6或 7所述的移动终端, 其中, 所述天线选择单 元通过天线选择开关切换选择内置天线或外置天线。
10、 根据权利要求 5、 6或 7所述的移动终端, 其中, 所述射频电路控 制单元, 还配置为在给天线选择单元发送切换天线指令的同时, 将切换天 线的信息上报给应用处理器 AP侧。
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