WO2014134996A1 - 发射功率控制方法及装置 - Google Patents

发射功率控制方法及装置 Download PDF

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Publication number
WO2014134996A1
WO2014134996A1 PCT/CN2014/072014 CN2014072014W WO2014134996A1 WO 2014134996 A1 WO2014134996 A1 WO 2014134996A1 CN 2014072014 W CN2014072014 W CN 2014072014W WO 2014134996 A1 WO2014134996 A1 WO 2014134996A1
Authority
WO
WIPO (PCT)
Prior art keywords
target object
mobile terminal
sensing area
movement
sar antenna
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/072014
Other languages
English (en)
French (fr)
Inventor
张飞飞
齐骞
侯志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to EP14760379.9A priority Critical patent/EP3068185B1/en
Priority to US15/034,945 priority patent/US9807705B2/en
Priority to KR1020167014973A priority patent/KR20160085806A/ko
Publication of WO2014134996A1 publication Critical patent/WO2014134996A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/283—Power depending on the position of the mobile
    • 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
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/285—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission taking into account the mobility of the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
    • H04W52/288—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission taking into account the usage mode, e.g. hands-free, data transmission or telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method and apparatus for controlling transmit power.
  • BACKGROUND OF THE INVENTION Mobile terminals have become an indispensable communication and entertainment tool in current life work, and the trend of mobile terminals is developing toward a large screen and an intelligent direction.
  • PCs personal computers
  • the electromagnetic absorption ratio (SAR) test is a very important indicator.
  • the SAR's radiation performance constraints greatly reduce the impact of the product on the human body.
  • the SAR method used in the current product is to reduce the SAR antenna, that is, the sensor is used to detect the proximity of the human body, thereby controlling the output power of the mobile terminal to be reduced.
  • the above processing method is generally used in a tablet computer.
  • the amplitude reduction is flexible and controllable
  • the disadvantage is that the sensitivity of the SAR antenna to sense the proximity of the human body is reduced.
  • An embodiment of the present invention provides a method for controlling a transmission power, including: determining a location of a target object close to a mobile terminal when detecting that the target object is close to the mobile terminal, and selecting an optimal SAR antenna for sensing the movement of the target object according to the location Inductive area; sensing the movement of the target object in the optimal sensing area by the falling SAR antenna, acquiring the movement information of the target object, and controlling the transmission power of the mobile terminal according to the movement information.
  • the above method further comprises: redetermining the position of the target object close to the mobile terminal every predetermined time, and determining whether the currently acquired position is the same as the position determined in the previous cycle; if the same, then The optimal sensing area determined in one cycle is used as the current optimal sensing area. Otherwise, the optimal sensing area of the moving target object moving by the falling SAR antenna is re-determined according to the currently acquired position.
  • the range of the location of the target object close to the mobile terminal is: extending outwardly within a predetermined range centering on the communication antenna of the mobile terminal.
  • the optimal sensing area is an area within a predetermined range closest to the target object.
  • the sensing the movement of the target object in the optimal sensing area by the falling SAR antenna, acquiring the movement information of the target object, and controlling the size of the transmitting power of the mobile terminal according to the movement information specifically includes: switching the logic selection switch to different The preset access port on the descending SAR antenna is connected to the falling SAR antenna; the respective access ports of the descending SAR antenna sense the movement of the target object in the optimal sensing area, and respectively acquire the movement information of the target object of each access port.
  • the mobile terminal's transmit power is not adjusted; if the mobile information obtained from one of the access ports reaches the preset threshold Limiting, switching the logical selection switch to the access port, and controlling the size of the mobile terminal's transmit power according to the mobile information acquired from the access port; if the mobile information acquired from the multiple access ports reaches the advance Set the threshold value, the mobile information will be obtained from multiple access ports.
  • the comparison result selection logic switch to the optimal induction access port, and control the size of the transmission power of the mobile terminal according to the movement information acquired from the access port.
  • the embodiment of the present invention further provides a transmission power control apparatus, including: a determination selection module, configured to determine a location of the target object close to the mobile terminal when detecting that the target object is close to the mobile terminal, and select a downlink SAR of the mobile terminal according to the location
  • the antenna senses the optimal sensing area of the moving of the target object; the SAR antenna senses the movement of the target object in the optimal sensing area, and feeds back the movement information of the target object;
  • the power control module is configured to acquire the movement information, and control the movement according to the movement information The size of the transmit power of the terminal.
  • the determining selection module is further configured to: redetermine the position of the target object close to the mobile terminal every predetermined time, and determine whether the currently acquired position is the same as the position determined in the previous cycle; if the same, the previous cycle The determined optimal sensing area is used as the current optimal sensing area. Otherwise, the optimal sensing area of the SAR antenna sensing target object movement is re-determined according to the currently acquired position.
  • the range of the location of the target object close to the mobile terminal is: extending outwardly within a predetermined range centering on the communication antenna of the mobile terminal.
  • the optimal sensing area is an area within a predetermined range closest to the target object.
  • the determining selection module is specifically configured to: connect the logical selection switch to switch the preset access port on the descending SAR antenna to the falling SAR antenna; and pass each of the access ports of the descending SAR antenna in the optimal sensing area.
  • the movement information of the target object of each access port is respectively obtained; if the movement information acquired from each access port does not reach the preset threshold value, no feedback is given to the movement information; If the mobile information acquired by an access port reaches a preset threshold, the logical selection switch is switched to the access port, and the mobile information acquired from the access port is fed back; if obtained from multiple access ports When the mobile information reaches the preset threshold, the mobile information acquired from the multiple access ports is compared, and the logical selection switch is switched to the optimal sensing access port according to the comparison result, and the access is fed back from the access information.
  • the mobile information obtained by the port obtained by the port.
  • the beneficial effects of the embodiment of the present invention are as follows: by dynamically determining the position of the human body close to the mobile terminal, and then selecting the optimal working mode of the SAR antenna to sense the distance range of the human body close to the mobile terminal, and feeding back information to the mobile terminal, the mobile terminal according to the feedback.
  • the information dynamically controls its radiant power, and the SAR antenna can be kept at a constant working mode to sense the proximity of the human body, and the sensing distance and range of the SAR antenna are improved, that is, the sensing sensitivity is improved.
  • FIG. 1 is a flowchart of a method for controlling a transmission power according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for processing a SAR according to an embodiment of the present invention
  • FIG. 3 is a flowchart for performing a method for controlling transmission power according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a SAR of the mobile terminal shown in FIG. 3 according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a transmission power control apparatus according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method and an apparatus for controlling the transmission power, and the technical solution of the embodiment of the present invention is
  • the terminal dynamically determines the position of the human body close to the mobile terminal, and then selects the optimal working mode of the sensor antenna to sense the distance range of the human body close to the mobile terminal, and feeds the information back to the mobile terminal, and the mobile terminal dynamically controls the radiation power according to the feedback information.
  • the technical solution of the embodiment of the invention can ensure that the sensor antenna is in the optimal working mode to sense the position of the human body, and the sensing distance and range of the sensor are improved, that is, the sensing sensitivity is improved.
  • the embodiment of the present invention requires the sensor antenna to have more than two access ports and the logic selection switch for selection, but for the mobile terminal that currently increases the SAR function.
  • the overall layout will not have any effect.
  • Step 101 When detecting that the target object is close to the mobile terminal, determining a location of the target object close to the mobile terminal, and selecting a falling SAR antenna of the mobile terminal to sense the target object according to the location
  • the optimal sensing area of the mobile wherein, because the human body is far away from the communication antenna, the mobile terminal has little influence on the human body, and therefore, the range of the location of the target object close to the mobile terminal is:
  • the communication antenna extends outward from the center within a predetermined range.
  • Step 102 Inducing movement of the target object in the optimal sensing area by using the falling SAR antenna, acquiring movement information of the target object, and controlling a size of a transmitting power of the mobile terminal according to the moving information.
  • the location of the target object close to the mobile terminal is re-determined every predetermined time, and it is determined whether the currently acquired location is the same as the location determined in the previous cycle; if the same, Then, the optimal sensing area determined in the previous period is used as the current optimal sensing area. Otherwise, the optimal sensing area in which the falling SAR antenna senses the movement of the target object is re-determined according to the currently obtained position.
  • the interval between the predetermined time needs to be selected according to the specific use situation of the mobile terminal or the test authentication situation.
  • step 102 specifically includes the following processing:
  • the logical selection switch is switched to connect an access port preset on the down SAR antenna to the down SAR antenna;
  • the movement of the target object is sensed in the optimal sensing area by the respective access ports of the SAR antenna, and the movement information of the target object of each access port is respectively obtained; If the mobile information acquired by each access port does not reach the preset threshold, the size of the transmit power of the mobile terminal is not adjusted; if the mobile information acquired from a certain access port reaches a preset a threshold value, the logical selection switch is switched to the access port, and the size of the transmit power of the mobile terminal is controlled according to the mobile information acquired from the access port; if the movement is obtained from multiple access ports If the information reaches the preset threshold, the mobile information obtained from the multiple access ports is compared, and the logical selection switch is switched to the optimal sensing access port according to the comparison result, and according to the connection The mobile information acquired by the ingress port controls the size of the transmit power of the mobile terminal.
  • the mobile terminal dynamically determines the position where the human body is close when the human body approaches; the mobile terminal dynamically selects the sensing region that is close to the sensor antenna according to the determined position; the mobile terminal is optimal.
  • the sensing area works, the radiation power is controlled according to the sensing threshold; after a certain time interval, the mobile terminal dynamically judges the position of the human body again. If the position does not change, the radiation is continuously controlled according to the working condition of the previous optimal sensing area.
  • FIG. 2 is a flowchart of a method for processing a SAR according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps: Step 201: The mobile terminal dynamically determines the location of the human body and selects an optimal sensing area to sense the sin of the human body.
  • Step 202 The mobile terminal, in step 201, determines the selected sensing mode, and feeds back the sensed signal information to the next step 203; Step 203, the mobile terminal dynamically controls the transmit power of the mobile terminal according to the feedback signal information of step 202; 204.
  • the mobile terminal repeats steps 201-204 after a certain time interval to reciprocate.
  • a sensor antenna ie, a SAR down antenna
  • the SAR antenna of the embodiment of the present invention may be configured with at least two access ports, and a logical selection switch for selecting an access port.
  • FIG. 3 is a structural block diagram of a mobile terminal performing a transmit power control method according to an embodiment of the present invention.
  • the mobile terminal includes: a judgment selection module 32, and a power control module 34.
  • the judgment selection module 32 includes: a sensor antenna configured to sense proximity of the human body, a logic selection switch having a logic selection function, and a falling SAR sensor chip having a logic control function.
  • the sensor antenna described in the embodiment of the present invention must have more than two access ports, and the specific number and specific location of the port on the antenna may be determined according to actual mobile terminal conditions.
  • the power control module 34 may be, but not limited to, a chip configured to transmit information with a logic control function.
  • the determination selection module 32 that has been in the determination state causes the logic selection switch to switch. Different channels are connected to the sensor antenna for judgment (the case where two ports are selected in the embodiment of the present invention).
  • the mobile terminal does not perform any operation and continues to judge; if the signal value sensed by one of the two ports reaches the required power The threshold value of the control, then the logic selection switch is switched to the port, and the sensor chip will feel The signal to be sent is fed back to the power control module 34; if the signal values sensed by the two ports reach the threshold value for which power control is required, the determination selection module 32 compares the signal values sensed by the two ports, and the logic selection switch is switched to The optimally sensed port, while the sensor chip feeds back the sensed signal to the power control module 34.
  • the power control module 34 controls the transmit power of the mobile terminal based on the received feedback signal.
  • the sensor antenna can be ensured that the sensor antenna is in the optimal working mode to sense the proximity of the human body, and the sensing distance and range of the sensor are improved, that is, the sensing sensitivity is improved. It avoids the possibility that the sensing range of the sensor may be too small or too small, which may cause misjudgment, and cannot control the radiation power of the mobile terminal in time, and cannot protect the human body in time.
  • the power control module 34 controls the transmit power of the mobile terminal, and the workflow ends. After a certain time interval, the mobile terminal dynamically judges the position of the human body again, and repeats the above process.
  • FIG. 5 is a schematic structural diagram of a transmission power control apparatus according to an embodiment of the present invention.
  • the device includes: a judgment selection module 50, and a power control module 52.
  • the respective modules of the embodiments of the present invention are described in detail below.
  • the determining selection module 50 is configured to determine a position of the target object close to the mobile terminal when detecting that the target object is close to the mobile terminal, and select an optimal sensing area of the mobile terminal's falling SAR antenna to sense the moving of the target object according to the position; In the optimal sensing area, the movement of the target object is sensed, and the movement information of the target object is fed back; wherein the range of the position of the target object close to the mobile terminal is: extending the area within the predetermined range with the communication antenna of the mobile terminal as the center.
  • the optimal sensing area is an area within a predetermined range closest to the target object.
  • the determining selection module 50 is further configured to: redetermine the position of the target object close to the mobile terminal every predetermined time, and determine whether the currently acquired position is the same as the position determined in the previous cycle; if the same, Then, the optimal sensing area determined in the previous period is used as the current optimal sensing area. Otherwise, the optimal sensing area of the moving target object moving by the falling SAR antenna is re-determined according to the currently acquired position.
  • the power control module 52 is configured to acquire mobile information, and control the size of the transmit power of the mobile terminal according to the mobile information.
  • the determining selection module 50 is specifically configured to: connect the logical selection switch to different access ports preset on the descending SAR antenna and connect to the falling SAR antenna; and sense the target in the optimal sensing area by using each of the descending SAR antennas
  • the movement of the object acquires the movement information of the target object of each access port respectively; if the movement information acquired from each access port does not reach the preset threshold, the mobile information is not fed back; if the access is from a certain one If the mobile information acquired by the port reaches a preset threshold, the logical selection switch is switched to the access port, and the mobile information acquired from the access port is fed back; if the mobile information obtained from the multiple access ports is When the preset threshold is reached, the mobile information acquired from the multiple access ports is compared, and the logical selection switch is switched to the optimal sensing access port according to the comparison result, and feedback is obtained from the access port.
  • the optimal working mode of the SAR antenna is selected to sense the distance range of the human body close to the mobile terminal, and the information is fed back to the information.
  • the mobile terminal dynamically controls the radiation power according to the feedback information, and can ensure that the SAR antenna is in an optimal working mode to sense the proximity of the human body, and the sensing distance and range of the falling SAR antenna are improved, that is, the mobile terminal is improved. Sensing sensitivity. It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention.
  • the present invention cover the modifications and the modifications of the invention INDUSTRIAL APPLICABILITY
  • the technical solution provided by the embodiments of the present invention can be applied to the field of communication, by dynamically determining the position of the human body close to the mobile terminal, and then selecting the optimal working mode of the SAR antenna to sense the distance range of the human body near the mobile terminal, and simultaneously information Feedback to the mobile terminal, the mobile terminal dynamically controls the radiation power according to the feedback information, and can timely keep the SAR antenna in the optimal working mode to sense the proximity of the human body, and improve the sensing distance and range of the falling SAR antenna, that is, improve Its sensitivity is sensitive.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
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Abstract

本发明公开了一种发射功率控制方法及装置。该方法包括：在检测到目标物体靠近移动终端时，确定目标物体靠近移动终端的位置，并根据位置选择移动终端的降SAR天线感应目标物体移动的最优感应区域；通过降SAR天线在最优感应区域中感应目标物体的移动，获取目标物体的移动信息，并根据移动信息控制移动终端的发射功率的大小。借助于本发明的技术方案，能够时刻保降SAR天线是在最优的工作模式下去感应人体靠近的位置，提高了降SAR天线的感应距离以及范围，即提高了其感应敏感度。

Description

发射功率控制方法及装置 技术领域 本发明涉及移动通讯领域， 特别是涉及一种发射功率控制方法及装置。 背景技术 移动终端已经成为目前生活工作中不可缺少的通讯以及娱乐工具， 移动终端的趋 势向着大屏化、 智能化的方向发展。 目前大屏幕智能手机和平板电脑的使用越来越广 泛， 有进一步侵占传统个人电脑（Personal Computer, 简称为 PC)市场的迹象。 因此， 各个设备生产商对于移动终端的重视和投入是无需多言的。 但另一方面， 移动终端的辐射对人体的影响也引起了各个国家和组织及消费者的 重视。 目前， 在移动终端认证中， 尤其是平板电脑类产品， 电磁波吸收比值 （Specific Absorption Rate, 简称为 SAR) 测试是非常重要的指标， SAR对产品辐射性能的约束 大大降低了产品对人体的影响。 目前产品中使用的降 SAR方法， 即通过增加降 SAR 天线即传感器用来检测人体接近， 从而控制移动终端输出功率进行降低。 上述处理方 法一般用于平板电脑中， 目前随着手机尺寸越来越接近平板电脑， 在手机中使用也是 早晚的事， 其优点是降幅灵活可控制， 缺点是降 SAR天线感应人体靠近的敏感度（感 应范围） 制约着移动终端辐射功率变化的敏感度， 出现的情况的是人体未靠近终端传 感器已经开始工作或者人体已经靠近终端传感器未开始工作， 发生误判。 发明内容 鉴于上述降 SAR天线的敏感度不准确的问题，提出了一种发射功率控制方法及装 置。 本发明实施例提供一种发射功率控制方法， 包括： 在检测到目标物体靠近移动终 端时， 确定目标物体靠近移动终端的位置， 并根据位置选择移动终端的降 SAR天线感 应目标物体移动的最优感应区域；通过降 SAR天线在最优感应区域中感应目标物体的 移动， 获取目标物体的移动信息， 并根据移动信息控制移动终端的发射功率的大小。 优选地， 上述方法进一步包括： 每隔预定时间， 重新确定目标物体靠近移动终端 的位置， 并判断当前获取的位置与上一周期确定的位置是否相同； 如果相同， 则将上 一周期确定的最优感应区域作为当前最优感应区域， 否则， 根据当前获取的位置重新 确定降 SAR天线感应目标物体移动的最优感应区域。 优选地， 上述目标物体靠近移动终端的位置的范围为： 以移动终端的通讯天线为 中心向外延伸预定范围内的区域。 优选地， 上述最优感应区域为距离目标物体最近的预定范围内的区域。 优选地， 上述通过降 SAR天线在最优感应区域中感应目标物体的移动， 获取目标 物体的移动信息， 并根据移动信息控制移动终端的发射功率的大小具体包括： 将逻辑 选择开关切换不同的在降 SAR天线上预先设置的接入端口与降 SAR天线相连接； 通 过降 SAR天线的各个接入端口在最优感应区域中感应目标物体的移动，分别获取各个 接入端口的目标物体的移动信息； 如果从各个接入端口获取的移动信息均没有达到预 先设置的门限值， 则不对移动终端的发射功率的大小进行调整； 如果从某一个接入端 口获取的移动信息达到了预先设置的门限值， 则将逻辑选择开关切换至该接入端口， 并根据从该接入端口获取的移动信息控制移动终端的发射功率的大小； 如果从多个接 入端口获取的移动信息均达到了预先设置的门限值， 则将从多个接入端口获取的移动 信息进行对比， 根据对比结果将逻辑选择开关切换至最优感应的接入端口， 并根据从 该接入端口获取的移动信息控制移动终端的发射功率的大小。 本发明实施例还提供了一种发射功率控制装置， 包括： 判断选择模块， 设置为在 检测到目标物体靠近移动终端时， 确定目标物体靠近移动终端的位置， 并根据位置选 择移动终端的降 SAR天线感应目标物体移动的最优感应区域； 通过降 SAR天线在最 优感应区域中感应目标物体的移动， 反馈目标物体的移动信息； 功率控制模块， 设置 为获取移动信息， 并根据移动信息控制移动终端的发射功率的大小。 优选地， 上述判断选择模块进一步设置为： 每隔预定时间， 重新确定目标物体靠 近移动终端的位置， 并判断当前获取的位置与上一周期确定的位置是否相同； 如果相 同， 则将上一周期确定的最优感应区域作为当前最优感应区域， 否则， 根据当前获取 的位置重新确定降 SAR天线感应目标物体移动的最优感应区域。 优选地， 上述目标物体靠近移动终端的位置的范围为： 以移动终端的通讯天线为 中心向外延伸预定范围内的区域。 优选地， 上述最优感应区域为距离目标物体最近的预定范围内的区域。 优选地， 上述判断选择模块具体设置为： 将逻辑选择开关切换不同的在降 SAR天 线上预先设置的接入端口与降 SAR天线相连接； 通过降 SAR天线的各个接入端口在 最优感应区域中感应目标物体的移动，分别获取各个接入端口的目标物体的移动信息; 如果从各个接入端口获取的移动信息均没有达到预先设置的门限值， 则不对移动信息 进行反馈； 如果从某一个接入端口获取的移动信息达到了预先设置的门限值， 则将逻 辑选择开关切换至该接入端口， 并反馈从该接入端口获取的移动信息； 如果从多个接 入端口获取的移动信息均达到了预先设置的门限值， 则将从多个接入端口获取的移动 信息进行对比， 根据对比结果将逻辑选择开关切换至最优感应的接入端口， 并反馈从 该接入端口获取的移动信息。 本发明实施例有益效果如下： 通过动态判断人体靠近移动终端的位置，进而选择降 SAR天线最优的工作模式去 感应人体靠近移动终端的距离范围， 同时将信息反馈给移动终端， 移动终端根据反馈 的信息动态控制其辐射功率，能够时刻保降 SAR天线是在最优的工作模式下去感应人 体靠近的位置， 提高了降 SAR天线的感应距离以及范围， 即提高了其感应敏感度。 上述说明仅是本发明实施例技术方案的概述， 为了能够更清楚了解本发明实施例 的技术手段， 而可依照说明书的内容予以实施， 并且为了让本发明实施例的上述和其 它目的、 特征和优点能够更明显易懂， 以下特举本发明实施例的具体实施方式。 附图说明 通过阅读下文优选实施方式的详细描述， 各种其他的优点和益处对于本领域普通 技术人员将变得清楚明了。 附图仅用于示出优选实施方式的目的， 而并不认为是对本 发明的限制。 而且在整个附图中， 用相同的参考符号表示相同的部件。 在附图中： 图 1是本发明实施例的发射功率控制方法的流程图； 图 2是本发明实施例的降 SAR处理方法的流程图； 图 3是本发明实施例的执行发射功率控制方法的移动终端的结构框图； 图 4是本发明实施例的如图 3所示的移动终端的降 SAR的优选流程图； 图 5是本发明实施例的发射功率控制装置的结构示意图。 具体实施方式 下面将参照附图更详细地描述本公开的示例性实施例。 虽然附图中显示了本公开 的示例性实施例， 然而应当理解， 可以以各种形式实现本公开而不应被这里阐述的实 施例所限制。 相反， 提供这些实施例是为了能够更透彻地理解本公开， 并且能够将本 公开的范围完整的传达给本领域的技术人员。 在现有技术中， 常用的降 SAR方法， 不能判断出人体靠近移动终端的准确位置， 不能以传感器天线的最优的工作模式去感应人体靠近， 常出现其感应范围过近过小， 甚者产生误判， 不能及时的控制移动终端的辐射功率， 不能及时的起到保护人体的作 用。 因此， 为了解决现有技术降 SAR天线 （以下也称为传感器天线） 的敏感度不准确 的问题， 本发明实施例提供了一种发射功率控制方法及装置， 本发明实施例的技术方 案通过移动终端动态判断人体靠近移动终端的位置， 进而选择传感器天线最优的工作 模式去感应人体靠近移动终端的距离范围， 同时将信息反馈给移动终端， 移动终端根 据反馈的信息动态控制其辐射功率。 本发明实施例的技术方案能够时刻保证传感器天 线是在最优的工作模式下去感应人体靠近的位置，提高了传感器的感应距离以及范围， 即提高了其感应敏感度。 此外， 优选地， 本发明实施例在硬件设计上， 与当前增加降 SAR功能的移动终端相比， 需要传感器天线具有两个以上的接入端口， 以及增加用于 选择的逻辑选择开关， 但对于整机布局不会产生什么的影响。 以下结合附图以及实施例， 对本发明实施例进行进一步详细说明。 应当理解， 此 处所描述的具体实施例仅仅用以解释本发明， 并不限定本发明。 方法实施例 根据本发明的实施例， 提供了一种发射功率控制方法， 图 1是本发明实施例的发 射功率控制方法的流程图， 如图 1所示， 根据本发明实施例的发射功率控制方法包括 如下处理： 步骤 101， 在检测到目标物体靠近移动终端时， 确定所述目标物体靠近所述移动 终端的位置，并根据所述位置选择所述移动终端的降 SAR天线感应所述目标物体移动 的最优感应区域； 其中， 因为人体距离通讯天线较远的位置， 移动终端对于人体几乎 没有影响， 因此， 所述目标物体靠近所述移动终端的位置的范围为： 以所述移动终端 的通讯天线为中心向外延伸预定范围内的区域。 此外， 因为距离人体越近的传感器天 线区域对于人体的感应距离越远， 即敏感度越高， 因此， 所述最优感应区域为距离所 述目标物体最近的预定范围内的区域。 步骤 102，通过所述降 SAR天线在所述最优感应区域中感应所述目标物体的移动， 获取所述目标物体的移动信息， 并根据所述移动信息控制所述移动终端的发射功率的 大小。 优选地， 在本发明实施例中， 每隔预定时间， 重新确定所述目标物体靠近所述移 动终端的位置， 并判断当前获取的所述位置与上一周期确定的位置是否相同； 如果相 同， 则将上一周期确定的所述最优感应区域作为当前最优感应区域， 否则， 根据当前 获取的所述位置重新确定所述降 SAR天线感应所述目标物体移动的最优感应区域。其 中， 所述预定时间的间隔， 需要依据移动终端的具体使用情况或者测试认证情况进行 选择。 优选地， 步骤 102具体包括如下处理：
1、 将逻辑选择开关切换不同的在所述降 SAR天线上预先设置的接入端口与所述 降 SAR天线相连接；
2、 通过所述降 SAR天线的各个接入端口在所述最优感应区域中感应所述目标物 体的移动， 分别获取各个接入端口的所述目标物体的移动信息； 3、如果从所述各个接入端口获取的移动信息均没有达到预先设置的门限值， 则不 对所述所述移动终端的发射功率的大小进行调整； 如果从某一个接入端口获取的移动 信息达到了预先设置的门限值， 则将所述逻辑选择开关切换至该接入端口， 并根据从 该接入端口获取的移动信息控制所述移动终端的发射功率的大小； 如果从多个接入端 口获取的移动信息均达到了预先设置的门限值， 则将从多个接入端口获取的移动信息 进行对比， 根据对比结果将所述逻辑选择开关切换至最优感应的接入端口， 并根据从 该接入端口获取的移动信息控制所述移动终端的发射功率的大小。 需要说明的是， 移 动终端在最优的感应区域工作时依据预先设置的门限值控制其辐射功率， 需要事先在 实验室依据具体的移动终端的工作情况对平台参数进行的具体的配置。 综上所述， 在本发明实施例中， 移动终端在人体靠近时动态判断人体所靠近的位 置； 移动终端根据所判断出的位置动态选择接近传感器天线最优的感应区域； 移动终 端在最优的感应区域工作时依据感应门限值控制其辐射功率； 一定的时间间隔后， 移 动终端再一次动态判断人体所靠近的位置， 若位置不变化， 继续根据以前的最优感应 区域工作情况控制辐射功率， 若位置发生变化， 动态选择另一最优的感应区域工作依 据感应情况控制辐射功率； 一定的时间间隔后重复上述动态判断选择行为。 以下结合附图， 对本发明实施例的上述技术方案进行详细说明。 图 2是本发明实施例的降 SAR处理方法的流程图， 如图 2所示， 具体包括如下处 理： 步骤 201， 移动终端动态判断人体靠近的位置并选择最优的感应区域感应人体的 罪近； 步骤 202， 移动终端在步骤 201判断选择的感应模式下， 反馈其感应到的信号信 息至下一步骤 203 ; 步骤 203， 移动终端根据步骤 202的反馈信号信息动态控制移动终端的发射功率; 步骤 204， 移动终端在一定时间间隔后重复步骤 201-204， 往复循环。 在现有移动终端上， 如已有降 SAR功能， 则移动终端上存在感应人体与移动终端 位置关系的传感器天线（即降 SAR天线）， 但本发明实施例跟以往一般的降 SAR天线 相比， 本发明实施例的降 SAR天线可以设置至少两个以上的接入端口， 以及增加用于 选择接入端口的逻辑选择开关； 如无降 SAR功能， 则首先需要增加本发明实施例所述 的传感器天线才能起到相应作用。 图 3是本发明实施例的执行发射功率控制方法的移动终端结构框图，如图 3所示， 该移动终端包括： 判断选择模块 32， 功率控制模块 34。 判断选择模块 32包括： 设置为感应人体靠近的传感器天线、具有逻辑选择功能的 逻辑选择开关、 以及具有逻辑控制功能的降 SAR传感器芯片。优选地， 本发明实施例 中所述的传感器天线必须具有两个以上的接入端口， 端口的在天线上的具体数量， 具 体位置， 可以依据实际的移动终端情况而定。 功率控制模块 34， 可以采用但不限于： 具有逻辑控制功能的设置为信息传输的芯 片。 图 4是本发明实施例的如图 3所示的移动终端降 SAR的优选流程图，具体包括如 下处理： 当人体靠近移动终端的时候，一直处于判定状态的判断选择模块 32令逻辑选择开 关切换不同的通道与传感器天线连接进行判断 （本发明实施例选择了两个端口的情况 进行说明）。若两个端口感应的信号值都没有达到需要进行功率控制的门限值，移动终 端不会进行任何操作， 仍继续进行判断； 若两个端口中的一个端口感应的信号值达到 了需要进行功率控制的门限值， 则逻辑选择开关切换至该端口， 同时传感器芯片将感 应到的信号反馈至功率控制模块 34; 若两个端口感应的信号值都达到需要进行功率控 制的门限值，判断选择模块 32则对比两个端口感应到的信号值，逻辑选择开关切换至 最优感应的端口， 同时传感器芯片将感应到的信号反馈至功率控制模块 34。 功率控制模块 34根据接收到的反馈信号， 对移动终端的发射功率进行控制。 结合以上两步骤， 能时刻保证传感器天线是在最优的工作模式下去感应人体靠近 的位置， 提高了传感器的感应距离以及范围， 即提高了其感应敏感度。 避免了可能会 出现的传感器感应范围过近过小， 甚者产生误判， 不能及时的控制移动终端的辐射功 率， 不能及时的起到保护人体作用的情况。 当流程进行到功率控制模块 34时， 功率控制模块 34对移动终端的发射功率进行 控制， 一次工作流程结束。 一定的时间间隔后， 移动终端再一次动态判断人体所靠近 的位置， 周而复始上述过程。 综上所述， 借助于本发明实施例的技术方案， 通过动态判断人体靠近移动终端的 位置， 进而选择降 SAR天线最优的工作模式去感应人体靠近移动终端的距离范围， 同 时将信息反馈给移动终端， 移动终端根据反馈的信息动态控制其辐射功率， 能够时刻 保降 SAR天线是在最优的工作模式下去感应人体靠近的位置， 提高了降 SAR天线的 感应距离以及范围， 即提高了其感应敏感度。 装置实施例 根据本发明的实施例， 提供了一种发射功率控制装置， 图 5是本发明实施例的发 射功率控制装置的结构示意图， 如图 5所示， 根据本发明实施例的发射功率控制装置 包括： 判断选择模块 50、 以及功率控制模块 52， 以下对本发明实施例的各个模块进行 详细的说明。 判断选择模块 50， 设置为在检测到目标物体靠近移动终端时， 确定目标物体靠近 移动终端的位置，并根据位置选择移动终端的降 SAR天线感应目标物体移动的最优感 应区域； 通过降 SAR天线在最优感应区域中感应目标物体的移动， 反馈目标物体的移 动信息； 其中， 目标物体靠近移动终端的位置的范围为： 以移动终端的通讯天线为中 心向往延伸预定范围内的区域。 最优感应区域为距离目标物体最近的预定范围内的区 域。 具体地， 判断选择模块 50进一步设置为： 每隔预定时间， 重新确定目标物体靠近 移动终端的位置， 并判断当前获取的位置与上一周期确定的位置是否相同； 如果相同， 则将上一周期确定的最优感应区域作为当前最优感应区域， 否则， 根据当前获取的位 置重新确定降 SAR天线感应目标物体移动的最优感应区域。 功率控制模块 52， 设置为获取移动信息， 并根据移动信息控制移动终端的发射功 率的大小。 判断选择模块 50具体设置为： 将逻辑选择开关切换不同的在降 SAR天线上预先 设置的接入端口与降 SAR天线相连接； 通过降 SAR天线的各个接入端口在最优感应 区域中感应目标物体的移动， 分别获取各个接入端口的目标物体的移动信息； 如果从 各个接入端口获取的移动信息均没有达到预先设置的门限值， 则不对移动信息进行反 馈； 如果从某一个接入端口获取的移动信息达到了预先设置的门限值， 则将逻辑选择 开关切换至该接入端口， 并反馈从该接入端口获取的移动信息； 如果从多个接入端口 获取的移动信息均达到了预先设置的门限值， 则将从多个接入端口获取的移动信息进 行对比， 根据对比结果将逻辑选择开关切换至最优感应的接入端口， 并反馈从该接入 端口获取的移动信息。 综上所述， 借助于本发明实施例的技术方案， 通过动态判断人体靠近移动终端的 位置， 进而选择降 SAR天线最优的工作模式去感应人体靠近移动终端的距离范围， 同 时将信息反馈给移动终端， 移动终端根据反馈的信息动态控制其辐射功率， 能够时刻 保降 SAR天线是在最优的工作模式下去感应人体靠近的位置， 提高了降 SAR天线的 感应距离以及范围， 即提高了其感应敏感度。 显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精 神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的 范围之内， 则本发明也意图包含这些改动和变型在内。 工业实用性 本发明实施例提供的技术方案可以应用于通讯领域， 通过动态判断人体靠近移动 终端的位置，进而选择降 SAR天线最优的工作模式去感应人体靠近移动终端的距离范 围， 同时将信息反馈给移动终端， 移动终端根据反馈的信息动态控制其辐射功率， 能 够时刻保降 SAR天线是在最优的工作模式下去感应人体靠近的位置， 提高了降 SAR 天线的感应距离以及范围， 即提高了其感应敏感度。

Claims

权 利 要 求 书 、 一种发射功率控制方法， 包括：
在检测到目标物体靠近移动终端时， 确定所述目标物体靠近所述移动终端 的位置，并根据所述位置选择所述移动终端的降 SAR天线感应所述目标物体移 动的最优感应区域；
通过所述降 SAR天线在所述最优感应区域中感应所述目标物体的移动，获 取所述目标物体的移动信息， 并根据所述移动信息控制所述移动终端的发射功 率的大小。 、 如权利要求 1所述的方法， 其中， 所述方法进一步包括：
每隔预定时间， 重新确定所述目标物体靠近所述移动终端的位置， 并判断 当前获取的所述位置与上一周期确定的位置是否相同；
如果相同，则将上一周期确定的所述最优感应区域作为当前最优感应区域， 否则，根据当前获取的所述位置重新确定所述降 SAR天线感应所述目标物体移 动的最优感应区域。 、 如权利要求 1或 2所述的方法， 其中， 所述目标物体靠近所述移动终端的位置 的范围为： 以所述移动终端的通讯天线为中心向外延伸预定范围内的区域。 、 如权利要求 1或 2所述的方法， 其中， 所述最优感应区域为距离所述目标物体 最近的预定范围内的区域。 、 如权利要求 1或 2所述的方法，其中，通过所述降 SAR天线在所述最优感应区 域中感应所述目标物体的移动， 获取所述目标物体的移动信息， 并根据所述移 动信息控制所述移动终端的发射功率的大小具体包括：
将逻辑选择开关切换不同的在所述降 SAR天线上预先设置的接入端口与 所述降 SAR天线相连接；
通过所述降 SAR天线的各个接入端口在所述最优感应区域中感应所述目 标物体的移动， 分别获取各个接入端口的所述目标物体的移动信息；
如果从所述各个接入端口获取的移动信息均没有达到预先设置的门限值， 则不对所述所述移动终端的发射功率的大小进行调整； 如果从某一个接入端口 获取的移动信息达到了预先设置的门限值， 则将所述逻辑选择开关切换至该接 入端口， 并根据从该接入端口获取的移动信息控制所述移动终端的发射功率的 大小； 如果从多个接入端口获取的移动信息均达到了预先设置的门限值， 则将 从多个接入端口获取的移动信息进行对比， 根据对比结果将所述逻辑选择开关 切换至最优感应的接入端口， 并根据从该接入端口获取的移动信息控制所述移 动终端的发射功率的大小。 、 一种发射功率控制装置， 包括：
判断选择模块， 设置为在检测到目标物体靠近移动终端时， 确定所述目标 物体靠近所述移动终端的位置，并根据所述位置选择所述移动终端的降 SAR天 线感应所述目标物体移动的最优感应区域；通过所述降 SAR天线在所述最优感 应区域中感应所述目标物体的移动， 反馈所述目标物体的移动信息；
功率控制模块， 设置为获取所述移动信息， 并根据所述移动信息控制所述 移动终端的发射功率的大小。 、 如权利要求 6所述的装置， 其中， 所述判断选择模块进一步设置为- 每隔预定时间， 重新确定所述目标物体靠近所述移动终端的位置， 并判断 当前获取的所述位置与上一周期确定的位置是否相同；
如果相同，则将上一周期确定的所述最优感应区域作为当前最优感应区域， 否则，根据当前获取的所述位置重新确定所述降 SAR天线感应所述目标物体移 动的最优感应区域。 、 如权利要求 6或 7所述的装置， 其中， 所述目标物体靠近所述移动终端的位置 的范围为： 以所述移动终端的通讯天线为中心向外延伸预定范围内的区域。 、 如权利要求 6或 7所述的装置， 其中， 所述最优感应区域为距离所述目标物体 最近的预定范围内的区域。 0、 如权利要求 6或 7所述的装置， 其中， 判断选择模块具体设置为：
将逻辑选择开关切换不同的在所述降 SAR天线上预先设置的接入端口与 所述降 SAR天线相连接；
通过所述降 SAR天线的各个接入端口在所述最优感应区域中感应所述目 标物体的移动， 分别获取各个接入端口的所述目标物体的移动信息；
如果从所述各个接入端口获取的移动信息均没有达到预先设置的门限值， 则不对所述移动信息进行反馈； 如果从某一个接入端口获取的移动信息达到了 预先设置的门限值， 则将所述逻辑选择开关切换至该接入端口， 并反馈从该接 入端口获取的移动信息； 如果从多个接入端口获取的移动信息均达到了预先设 置的门限值， 则将从多个接入端口获取的移动信息进行对比， 根据对比结果将 所述逻辑选择开关切换至最优感应的接入端口， 并反馈从该接入端口获取的移 动信息。
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