CN107801239A - A kind of method, device and mobile terminal of dynamic adjustment radio-frequency front-end mode of operation - Google Patents
A kind of method, device and mobile terminal of dynamic adjustment radio-frequency front-end mode of operation Download PDFInfo
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Abstract
本发明公开了一种动态调整射频前端工作模式的方法、装置及移动终端，本发明在移动终端使用长期演进LTE的高频信号时，通过获取移动终端和基站的位置，计算移动终端和基站之间的距离，并在该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。
The invention discloses a method, device and mobile terminal for dynamically adjusting the working mode of the radio frequency front end. When the mobile terminal uses the high-frequency signal of long-term evolution LTE, the invention calculates the position of the mobile terminal and the base station When the distance exceeds the maximum distance of valid information that the mobile terminal can transmit uplink, the high transmission mode of the mobile terminal is turned on, so that the radio frequency front end of the mobile terminal works in the high transmission mode, thereby ensuring that the mobile terminal operates at high frequency. The data sent down can be received by the base station, so as to improve the demodulation efficiency of the base station, and then solve the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency radio electromagnetic waves.
Description
技术领域technical field
本发明涉及通信技术领域，特别是涉及一种动态调整射频前端工作模式的方法、装置及移动终端。The invention relates to the field of communication technologies, in particular to a method, device and mobile terminal for dynamically adjusting the working mode of a radio frequency front end.
背景技术Background technique
根据无线电磁波传输特点，频率越高，直线传播路径上信号衰减越大。以Sprint拥有的频谱资源为例，Sprint拥有的三个频谱上，按照衰减大小来排序依次是：B26<B25<B41。B41频率最高，衰减最大。其中B25衰减比B41小3dB。B26比B25小7.4dB。按照Sprint的实际网络部署统计，同样的技术条件，B41的网络覆盖比B25小了近30％。According to the characteristics of wireless electromagnetic wave transmission, the higher the frequency, the greater the signal attenuation on the straight-line propagation path. Taking the spectrum resources owned by Sprint as an example, the three spectrums owned by Sprint are sorted according to the attenuation: B26<B25<B41. B41 has the highest frequency and the largest attenuation. Among them, the attenuation of B25 is 3dB smaller than that of B41. B26 is 7.4dB smaller than B25. According to Sprint's actual network deployment statistics, under the same technical conditions, the network coverage of B41 is nearly 30% smaller than that of B25.
综合Sprint的频率资源来看，Sprint的频谱在B41最丰富，理论上网络容量和速率可以是最高，远远超过Sprint其他频段B25，B26。但是缺点也很明显，就是无线传输衰减最大，信号差，导致实际的网络速率反而低，用户体验差。From the perspective of Sprint's frequency resources, Sprint's spectrum is the most abundant in B41. In theory, the network capacity and speed can be the highest, far exceeding Sprint's other frequency bands B25 and B26. But the shortcomings are also obvious, that is, the wireless transmission has the largest attenuation and the signal is poor, resulting in a low actual network rate and poor user experience.
发明内容Contents of the invention
本发明提供了一种动态调整射频前端工作模式的方法、装置及移动终端，以解决现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。The present invention provides a method, a device and a mobile terminal for dynamically adjusting the working mode of the radio frequency front end, so as to solve the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency wireless electromagnetic waves.
本发明一方面提供一种动态调整射频前端工作模式的方法，该方法包括：One aspect of the present invention provides a method for dynamically adjusting the working mode of the radio frequency front end, the method comprising:
在移动终端使用长期演进LTE的高频信号时，分别获取移动终端的位置信息和基站的位置信息；When the mobile terminal uses the high-frequency signal of the long-term evolution LTE, the location information of the mobile terminal and the location information of the base station are obtained respectively;
根据所述移动终端的位置信息和所述基站的位置信息，计算所述移动终端和所述基站之间的距离；calculating the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the location information of the base station;
判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则开启所述移动终端射频前端的高功率等级模式。Judging whether the distance exceeds the maximum distance of effective uplink information that can be sent by the mobile terminal, and if so, enabling the high power level mode of the radio frequency front end of the mobile terminal.
进一步地，获取移动终端的位置信息，具体包括：Further, acquiring the location information of the mobile terminal specifically includes:
通过移动终端的全球定位系统获取所述移动终端的当前位置信息。The current location information of the mobile terminal is acquired through the global positioning system of the mobile terminal.
进一步地，根据所述移动终端和所述基站位置信息，计算所述移动终端和所述基站之间的距离，具体包括：Further, calculating the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the base station, specifically includes:
计算移动终端和基站的距离Distance，Distance＝R*Arccos(C)*Pi/180，其中，C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)，A(LonA，LatA)为移动终端经纬度坐标，B(LonB，LatB)为基站纬度坐标。Calculate the distance Distance between the mobile terminal and the base station, Distance=R*Arccos(C)*Pi/180, wherein, C=sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos( MLatB), A (LonA, LatA) is the latitude and longitude coordinates of the mobile terminal, and B (LonB, LatB) is the latitude coordinates of the base station.
进一步地，所述移动终端可发送的上行有效信息的最大距离为移动终端有效上行距离半径。Further, the maximum distance of the effective uplink information that the mobile terminal can send is the effective uplink distance radius of the mobile terminal.
进一步地，判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则开启所述移动终端射频前端的高功率等级模式，具体包括：Further, it is judged whether the distance exceeds the maximum distance of effective uplink information that can be sent by the mobile terminal, and if yes, the high power level mode of the radio frequency front end of the mobile terminal is turned on, specifically including:
当所述距离大于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第三功率等级模式；When the distance is greater than the effective uplink distance radius R +23dBm of the mobile terminal, the radio frequency front end of the mobile terminal starts the third power level mode;
当所述距离小于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第二功率等级模式。When the distance is less than the effective uplink distance radius R +23dBm of the mobile terminal, the radio frequency front end of the mobile terminal starts the second power level mode.
本发明另一方面提供一种动态调整射频前端工作模式的装置，该装置包括：Another aspect of the present invention provides a device for dynamically adjusting the working mode of the radio frequency front end, the device comprising:
获取单元，用于在移动终端使用长期演进LTE的高频信号时，分别获取移动终端的位置信息和基站的位置信息；An acquiring unit, configured to respectively acquire the location information of the mobile terminal and the location information of the base station when the mobile terminal uses the high-frequency signal of Long Term Evolution LTE;
计算单元，用于根据所述移动终端的位置信息和所述基站的位置信息，计算所述移动终端和所述基站之间的距离；a calculation unit, configured to calculate the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the location information of the base station;
判断单元，用于判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则开启所述移动终端射频前端的高功率等级模式。The judging unit is used to judge whether the distance exceeds the maximum distance of the effective uplink information that can be sent by the mobile terminal, and if so, turn on the high power level mode of the radio frequency front end of the mobile terminal.
进一步地，所述获取单元还用于，通过移动终端的全球定位系统获取所述移动终端的当前位置信息。Further, the acquiring unit is further configured to acquire the current location information of the mobile terminal through the global positioning system of the mobile terminal.
进一步地，所述计算单元还用于，计算移动终端和基站的距离Distance，Distance＝R*Arccos(C)*Pi/180；Further, the calculation unit is also used to calculate the distance Distance between the mobile terminal and the base station, Distance=R*Arccos(C)*Pi/180;
C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)，C=sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB),
A(LonA，LatA)为移动终端经纬度坐标，B(LonB，LatB)为基站纬度坐标。A (LonA, LatA) is the latitude and longitude coordinates of the mobile terminal, and B (LonB, LatB) is the latitude coordinates of the base station.
进一步地，所述移动终端可发送的上行有效信息的最大距离为移动终端有效上行距离半径。Further, the maximum distance of the effective uplink information that the mobile terminal can send is the effective uplink distance radius of the mobile terminal.
进一步地，所述判断单元还用于，当所述距离大于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第三功率等级模式；当所述距离小于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第二功率等级模式。Further, the judging unit is also used for, when the distance is greater than the effective uplink distance radius R +23dBm of the mobile terminal, the radio frequency front end of the mobile terminal starts the third power level mode; when the distance is less than the effective uplink distance radius of the mobile terminal When R +23dBm , the RF front end of the mobile terminal starts the second power level mode.
本发明再一方面提供一种移动终端，该移动终端包括上述任意一项所述的装置。Another aspect of the present invention provides a mobile terminal, the mobile terminal including any one of the above devices.
本发明有益效果如下：The beneficial effects of the present invention are as follows:
本发明在移动终端使用长期演进(Long Term Evolut ion，LTE)的高频信号时，通过获取移动终端和基站的位置，计算移动终端和基站之间的距离，并在该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。The present invention calculates the distance between the mobile terminal and the base station by acquiring the positions of the mobile terminal and the base station when the mobile terminal uses a long-term evolution (Long Term Evolution, LTE) high-frequency signal, and when the distance exceeds the mobile terminal uplink When the maximum distance of the transmitted effective information is reached, the high transmission mode of the mobile terminal is turned on, so that the radio frequency front end of the mobile terminal works in the high transmission mode, so as to ensure that the data sent by the mobile terminal at high frequency can be received by the base station, so as to improve the efficiency of the base station. The demodulation efficiency solves the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency radio electromagnetic waves.
附图说明Description of drawings
图1是本发明实施例提供的一种动态调整射频前端工作模式的方法的流程示意图；FIG. 1 is a schematic flowchart of a method for dynamically adjusting the working mode of a radio frequency front-end provided by an embodiment of the present invention;
图2是本发明实施例提供的基站下行的最大有效范围；Fig. 2 is the maximum effective range of the downlink of the base station provided by the embodiment of the present invention;
图3是本发明实施例提供的一种动态调整射频前端工作模式的方法的流程示意图；FIG. 3 is a schematic flowchart of a method for dynamically adjusting the working mode of a radio frequency front-end provided by an embodiment of the present invention;
图4是本发明实施例提供的一种动态调整射频前端工作模式的装置的结构示意图。Fig. 4 is a schematic structural diagram of an apparatus for dynamically adjusting the working mode of a radio frequency front-end provided by an embodiment of the present invention.
具体实施方式Detailed ways
为了解决现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题，本发明提供了一种动态调整射频前端工作模式的方法、装置及移动终端，本发明在移动终端使用长期演进(Long Term Evolut ion，LTE)的高频信号时，通过获取移动终端和基站的位置，计算移动终端和基站之间的距离，并在该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。。以下结合附图以及实施例，对本发明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。In order to solve the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency wireless electromagnetic waves, the present invention provides a method, device and mobile terminal for dynamically adjusting the working mode of the radio frequency front end. When using long-term evolution (Long Term Evolution, LTE) high-frequency signals, the distance between the mobile terminal and the base station is calculated by obtaining the positions of the mobile terminal and the base station, and when the distance exceeds the effective information that the mobile terminal can transmit uplink At the maximum distance, turn on the high transmission mode of the mobile terminal, so that the RF front end of the mobile terminal works in the high transmission mode, so as to ensure that the data sent by the mobile terminal at high frequency can be received by the base station, so as to improve the demodulation efficiency of the base station, and then It solves the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency radio electromagnetic waves. . The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
方法实施例method embodiment
本发明实施例提供了一种动态调整射频前端工作模式的方法，参见图1，该方法包括：The embodiment of the present invention provides a method for dynamically adjusting the working mode of the radio frequency front end, referring to Fig. 1, the method includes:
S101、在移动终端使用长期演进LTE的高频信号时，分别获取移动终端的位置信息和基站的位置信息；S101. When the mobile terminal uses the high frequency signal of Long Term Evolution LTE, respectively acquire the location information of the mobile terminal and the location information of the base station;
S102、根据所述移动终端的位置信息和所述基站的位置信息，计算所述移动终端和所述基站之间的距离；S102. Calculate the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the location information of the base station;
S103、判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则进入S104；S103, judging whether the distance exceeds the maximum distance of uplink effective information that can be sent by the mobile terminal, if yes, proceed to S104;
S104、开启所述移动终端射频前端的高功率等级模式。S104. Turn on the high power level mode of the radio frequency front end of the mobile terminal.
也就是说，在移动终端使用长期演进LTE的高频信号时，本发明通过获取移动终端和基站的位置，计算移动终端和基站之间的距离，并在该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。That is to say, when the mobile terminal uses the high-frequency signal of Long Term Evolution LTE, the present invention calculates the distance between the mobile terminal and the base station by acquiring the positions of the mobile terminal and the base station, and when the distance exceeds the effective uplink transmission capability of the mobile terminal When the maximum distance of information is reached, the high transmission mode of the mobile terminal is turned on, so that the RF front end of the mobile terminal works in the high transmission mode, so as to ensure that the data sent by the mobile terminal at high frequency can be received by the base station, so as to improve the demodulation efficiency of the base station , and then solve the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency radio electromagnetic waves.
本发明实施例所述获取移动终端的位置信息，具体包括：The acquisition of the location information of the mobile terminal described in the embodiment of the present invention specifically includes:
通过移动终端的全球定位系统GPS获取所述移动终端的当前位置信息。The current location information of the mobile terminal is acquired through the global positioning system (GPS) of the mobile terminal.
当然，本领域的技术人员也可以通过其他方式来获取移动终端的当前位置信息，如，通过用户输入当前位置信息等等。Certainly, those skilled in the art may also acquire the current location information of the mobile terminal in other ways, for example, inputting the current location information by the user and so on.
具体来说，移动终端自带卫星定位接收装置，利用该装置可以定位出终端所处的位置，即经度和纬度。基站在建站时，会记录下卫星定位的位置。此时，获取了移动终端和基站的位置，可以通过经纬度坐标计算出移动终端和基站的相对距离。根据这个距离，终端作出判断。如果移动终端和终端的距离超过了移动终端上行可以发射的有效信息的最大距离，则开启高功率High Power模式，使射频前端PA工作在高功率High Power模式下，提高基站解调效率。避免因为移动终端的上行功率不够导致手机无法和基站进行交互。Specifically, the mobile terminal has its own satellite positioning receiving device, which can be used to locate the location of the terminal, that is, the longitude and latitude. When the base station is building a station, it will record the location of the satellite positioning. At this time, the positions of the mobile terminal and the base station are obtained, and the relative distance between the mobile terminal and the base station can be calculated through the latitude and longitude coordinates. According to this distance, the terminal makes a judgment. If the distance between the mobile terminal and the terminal exceeds the maximum distance that the mobile terminal can transmit effective information uplink, the high power High Power mode is turned on, so that the radio frequency front-end PA works in the high power High Power mode to improve the demodulation efficiency of the base station. Avoid that the mobile phone cannot interact with the base station due to insufficient uplink power of the mobile terminal.
本发明实施例所述根据所述移动终端和所述基站位置信息，计算所述移动终端和所述基站之间的距离，具体包括：According to the embodiment of the present invention, calculating the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the base station specifically includes:
计算移动终端和基站的距离Distance，Distance＝R*Arccos(C)*Pi/180，其中，C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)，A(LonA，LatA)为移动终端经纬度坐标，B(LonB，LatB)为基站纬度坐标。Calculate the distance Distance between the mobile terminal and the base station, Distance=R*Arccos(C)*Pi/180, wherein, C=sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos( MLatB), A (LonA, LatA) is the latitude and longitude coordinates of the mobile terminal, and B (LonB, LatB) is the latitude coordinates of the base station.
图2是本发明实施例提供的基站下行的最大有效范围，如图2所示，+23dBm的半径是移动终端在class3等级下的上行链接的最大范围。而移动终端的下行最大有效范围如下图最大的外圈半径。这样上行和下行的距离差了5dB。而+26dBm的移动终端在class2等级下的上行半径比+23dBm多了3dB，也就是说，在class2等级下，基站和移动终端上行半径就只差2dB了，如果移动终端工作在class2等级下，就可以大大提高移动终端的小区边缘性能和用户体验。Fig. 2 is the maximum effective range of the downlink of the base station provided by the embodiment of the present invention. As shown in Fig. 2, the radius of +23dBm is the maximum range of the uplink of the mobile terminal under the class3 level. The maximum effective downlink range of the mobile terminal is the maximum outer circle radius as shown in the figure below. In this way, the distance between uplink and downlink is 5dB different. However, the uplink radius of +26dBm mobile terminals in class2 is 3dB more than that of +23dBm. That is to say, in class2, the uplink radius between base station and mobile terminal is only 2dB apart. If the mobile terminal works in class2, The cell edge performance and user experience of the mobile terminal can be greatly improved.
本发明实施例所述移动终端可发送的上行有效信息的最大距离为移动终端有效上行距离半径R+23dBm。According to the embodiment of the present invention, the maximum distance of the effective uplink information that the mobile terminal can send is the effective uplink distance radius of the mobile terminal R +23dBm .
具体实施时，本发明实施例所述判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则开启所述移动终端射频前端的高功率等级模式，具体包括：During specific implementation, the embodiment of the present invention determines whether the distance exceeds the maximum distance of the effective uplink information that can be sent by the mobile terminal, and if so, turns on the high power level mode of the radio frequency front end of the mobile terminal, specifically including:
当所述距离大于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第三功率等级模式，即class3模式；When the distance is greater than the effective uplink distance radius R +23dBm of the mobile terminal, the radio frequency front end of the mobile terminal starts the third power level mode, i.e. class3 mode;
当所述距离小于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第二功率等级模式，即class2模式。When the distance is less than the effective uplink distance radius R +23dBm of the mobile terminal, the radio frequency front end of the mobile terminal starts the second power level mode, that is, the class2 mode.
图3是本发明实施例提供的一种动态调整射频前端工作模式的方法的流程示意图，下面将结合图3对本发明所述的方法进行详细的解释和说明：Fig. 3 is a schematic flowchart of a method for dynamically adjusting the working mode of a radio frequency front end provided by an embodiment of the present invention. The method of the present invention will be explained and described in detail below in conjunction with Fig. 3:
本发明所使用的设备包括：移动终端一台，带有GPS模块以及拥有class 3等级的射频芯片。The equipment used in the present invention includes: a mobile terminal with a GPS module and a class 3 radio frequency chip.
S301、根据GPS模块获取移动终端的经纬度坐标A(LonA，LatA)；S301. Obtain the latitude and longitude coordinates A (LonA, LatA) of the mobile terminal according to the GPS module;
具体为，通过移动终端上的GPS模块，获取移动终端的经纬度坐标A(LonA，LatA)。Specifically, the longitude and latitude coordinates A (LonA, LatA) of the mobile terminal are acquired through the GPS module on the mobile terminal.
S302、读取基站位置信息B(LonB，LatB)；S302. Read base station location information B (LonB, LatB);
基站在建站时，会记录下经纬度坐标B(LonB，LatB)When the base station is being built, it will record the latitude and longitude coordinates B (LonB, LatB)
S303、根据A和B的经纬度坐标，计算出移动终端距离基站的距离Distance；S303. Calculate the distance Distance between the mobile terminal and the base station according to the latitude and longitude coordinates of A and B;
其中，C＝s in(MLatA)*s in(MLatB)*cos(MLonA-MLonB)+Among them, C=s in(MLatA)*s in(MLatB)*cos(MLonA-MLonB)+
cos(MLatA)*cos(MLatB)cos(MLatA)*cos(MLatB)
Distance＝R*Arccos(C)*Pi/180Distance＝R*Arccos(C)*Pi/180
S304、判断移动终端和基站的距离Distance与class 3功率等级的终端有效上行距离R+23dBm的大小，如果，Distance<R+23dBm，则进入S305，否则，进入S306；S304, judging the distance Distance between the mobile terminal and the base station and the size of the effective uplink distance R +23dBm of the terminal of the class 3 power level, if Distance<R +23dBm , then enter S305, otherwise, enter S306;
S305、将移动终端切换到射频前端的class3模式；S305. Switch the mobile terminal to the class3 mode of the radio frequency front end;
S306、将移动终端切换到射频前端的class2模式。S306. Switch the mobile terminal to the class2 mode of the radio frequency front end.
对比+23dBm UL的半径R+23dBm。当Distance<R+23dBm时，移动终端的上行信号强度可以保证鉴权的要求不会影响下行链路性能，下行链路可以得到足够高的吞吐率。Compare the radius R +23dBm of +23dBm UL. When Distance<R +23dBm , the uplink signal strength of the mobile terminal can ensure that the authentication requirement will not affect the downlink performance, and the downlink can obtain a sufficiently high throughput.
移动终端切换到class3功率等级模式，降低功耗，提升电池续航。The mobile terminal switches to the class3 power level mode to reduce power consumption and improve battery life.
当Distance>R+23dBm时，移动终端的上行信号强度受到鉴权的限制，导致吞吐率下降。移动终端在小区边缘时使用更保守的调试技术和编码方式，以便eNB可以顺利接受并解调移动终端的信号。When Distance>R +23dBm , the uplink signal strength of the mobile terminal is limited by authentication, resulting in a decrease in throughput. When the mobile terminal is at the edge of the cell, a more conservative debugging technique and coding method are used so that the eNB can smoothly receive and demodulate the signal of the mobile terminal.
由于LTE是一个上行受限的系统，移动终端的上行功率衰减严重，这导致基站小区的覆盖率相比WCDMA和CDMA2000要差很多，因此，需要更多的基站数量去保证移动网络的覆盖。这无疑大大增加了运营商的前期投入。而当采用本发明所述的方法后，可在不增加额外基站资源投入的情况下，可以有效提高30％小区的覆盖率，所以本发明可大大节约运营商的前期投入。Since LTE is an uplink-limited system, the uplink power of mobile terminals is severely attenuated, which leads to a much worse base station cell coverage than WCDMA and CDMA2000. Therefore, more base stations are needed to ensure mobile network coverage. This will undoubtedly greatly increase the operator's initial investment. However, when the method of the present invention is adopted, the coverage rate of 30% of the cells can be effectively improved without increasing additional base station resource investment, so the present invention can greatly save the operator's initial investment.
装置实施例Device embodiment
本发明实施例提供了一种动态调整射频前端工作模式的装置，参见图4，包括：An embodiment of the present invention provides a device for dynamically adjusting the working mode of the radio frequency front end, as shown in Figure 4, including:
获取单元，用于在移动终端使用长期演进LTE的高频信号时，分别获取移动终端的位置信息和基站的位置信息；An acquiring unit, configured to respectively acquire the location information of the mobile terminal and the location information of the base station when the mobile terminal uses the high-frequency signal of Long Term Evolution LTE;
计算单元，用于根据所述移动终端的位置信息和所述基站的位置信息，计算所述移动终端和所述基站之间的距离；a calculation unit, configured to calculate the distance between the mobile terminal and the base station according to the location information of the mobile terminal and the location information of the base station;
判断单元，用于判断该距离是否超过了所述移动终端可发送的上行有效信息的最大距离，如果是，则开启所述移动终端射频前端的高功率等级模式。The judging unit is used to judge whether the distance exceeds the maximum distance of the effective uplink information that can be sent by the mobile terminal, and if so, turn on the high power level mode of the radio frequency front end of the mobile terminal.
即，本发明在移动终端使用长期演进LTE的高频信号时，本发明通过获取单元获取移动终端和基站的位置，由计算单元计算移动终端和基站之间的距离，并在判断单元确定该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。That is, in the present invention, when the mobile terminal uses the high-frequency signal of Long Term Evolution LTE, the present invention obtains the positions of the mobile terminal and the base station through the acquisition unit, calculates the distance between the mobile terminal and the base station by the calculation unit, and determines the distance in the judgment unit When the maximum distance of effective information that can be transmitted by the mobile terminal uplink is exceeded, the high transmission mode of the mobile terminal is turned on, so that the radio frequency front end of the mobile terminal works in the high transmission mode, thereby ensuring that the data sent by the mobile terminal at high frequency can be received by the base station To improve the demodulation efficiency of the base station, and then solve the problem in the prior art that the actual network rate is low due to the large attenuation of high-frequency radio electromagnetic waves.
进一步地，本发明所述获取单元还用于，通过移动终端的全球定位系统获取所述移动终端的当前位置信息。Further, the acquiring unit of the present invention is further configured to acquire the current location information of the mobile terminal through the global positioning system of the mobile terminal.
当然，本领域的技术人员也可以通过其他方式来获取移动终端的当前位置信息，如，通过用户输入当前位置信息等等。Certainly, those skilled in the art may also acquire the current location information of the mobile terminal in other ways, for example, inputting the current location information by the user and so on.
具体实施时，本发明实施例所述计算单元还用于，计算移动终端和基站的距离Distance，Distance＝R*Arccos(C)*Pi/180；During specific implementation, the calculation unit described in the embodiment of the present invention is also used to calculate the distance Distance between the mobile terminal and the base station, Distance=R*Arccos(C)*Pi/180;
C＝sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB)，C=sin(MLatA)*sin(MLatB)*cos(MLonA-MLonB)+cos(MLatA)*cos(MLatB),
A(LonA，LatA)为移动终端经纬度坐标，B(LonB，LatB)为基站纬度坐标。A (LonA, LatA) is the latitude and longitude coordinates of the mobile terminal, and B (LonB, LatB) is the latitude coordinates of the base station.
进一步地，本发明所述判断单元还用于，当所述距离大于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第三功率等级模式；当所述距离小于移动终端有效上行距离半径R+23dBm时，移动终端的射频前端启动第二功率等级模式。Further, the judging unit of the present invention is also used for, when the distance is greater than the mobile terminal effective uplink distance radius R + 23dBm , the radio frequency front end of the mobile terminal starts the third power level mode; when the distance is less than the effective uplink distance radius of the mobile terminal When the distance radius R +23dBm , the radio frequency front end of the mobile terminal starts the second power level mode.
图2是本发明实施例提供的基站下行的最大有效范围，如图2所示，+23dBm的半径是移动终端在class3等级下的上行链接的最大范围。而移动终端的下行最大有效范围如下图最大的外圈半径。这样上行和下行的距离差了5dB。而+26dBm的移动终端在class2等级下的上行半径比+23dBm多了3dB，也就是说，在class2等级下，基站和移动终端上行半径就只差2dB了，如果移动终端工作在class2等级下，就可以大大提高移动终端的小区边缘性能和用户体验。Fig. 2 is the maximum effective range of the downlink of the base station provided by the embodiment of the present invention. As shown in Fig. 2, the radius of +23dBm is the maximum range of the uplink of the mobile terminal under the class3 level. The maximum effective downlink range of the mobile terminal is the maximum outer circle radius as shown in the figure below. In this way, the distance between uplink and downlink is 5dB different. However, the uplink radius of +26dBm mobile terminals in class2 is 3dB more than that of +23dBm. That is to say, in class2, the uplink radius between base station and mobile terminal is only 2dB apart. If the mobile terminal works in class2, The cell edge performance and user experience of the mobile terminal can be greatly improved.
具体来说，对比+23dBm UL的半径R+23dBm。当Distance<R+23dBm时，移动终端的上行信号强度可以保证鉴权的要求不会影响下行链路性能，下行链路可以得到足够高的吞吐率。Specifically, compare the radius R +23dBm of +23dBm UL. When Distance<R +23dBm , the uplink signal strength of the mobile terminal can ensure that the authentication requirement will not affect the downlink performance, and the downlink can obtain a sufficiently high throughput.
移动终端切换到class3功率等级模式，降低功耗，提升电池续航。The mobile terminal switches to the class3 power level mode to reduce power consumption and improve battery life.
当Distance>R+23dBm时，移动终端的上行信号强度受到鉴权的限制，导致吞吐率下降。移动终端在小区边缘时使用更保守的调试技术和编码方式，以便eNB可以顺利接受并解调移动终端的信号。When Distance>R +23dBm , the uplink signal strength of the mobile terminal is limited by authentication, resulting in a decrease in throughput. When the mobile terminal is at the edge of the cell, a more conservative debugging technique and coding method are used so that the eNB can smoothly receive and demodulate the signal of the mobile terminal.
本发明实施例装置的相关内容可参考方法实施例的相关内容进行理解，此处不再赘述。The relevant content of the device in the embodiment of the present invention can be understood by referring to the relevant content of the method embodiment, and details are not repeated here.
终端实施例terminal embodiment
本发明实施例提供了一种移动终端，该移动终端包括装置实施例中的任意一种所述的装置。An embodiment of the present invention provides a mobile terminal, and the mobile terminal includes any one of the devices described in the device embodiments.
本发明实施例装置的相关内容可参考其他实施例的相关内容进行理解，此处不再赘述。Relevant content of the device in the embodiment of the present invention may be understood with reference to relevant content of other embodiments, and details are not repeated here.
本发明可以至少可以达到以下的有益效果：The present invention can at least achieve the following beneficial effects:
本发明在移动终端使用长期演进的高频信号时，通过获取移动终端和基站的位置，计算移动终端和基站之间的距离，并在该距离超过移动终端上行可发射的有效信息的最大距离时，开启移动终端的高发射模式，使得移动终端的射频前端工作在高发射模式下，从而确保移动终端在高频下发送的数据能够被基站接收到，以提高基站解调效率，继而解决了现有技术中由于高频率的无线电磁波衰减大，而导致实际的网络速率低的问题。The present invention calculates the distance between the mobile terminal and the base station by acquiring the positions of the mobile terminal and the base station when the mobile terminal uses long-term evolution high-frequency signals, and when the distance exceeds the maximum distance of effective information that the mobile terminal can transmit uplink , turn on the high transmission mode of the mobile terminal, so that the radio frequency front end of the mobile terminal works in the high transmission mode, so as to ensure that the data sent by the mobile terminal at high frequency can be received by the base station, so as to improve the demodulation efficiency of the base station, and then solve the problem In the prior art, due to the large attenuation of high-frequency wireless electromagnetic waves, the actual network rate is low.
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。Although preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, and therefore, the scope of the present invention should not be limited to the above-described embodiments.
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Application publication date: 20180313 |