WO2016090947A1 - 一种实现功率控制的方法及装置 - Google Patents
一种实现功率控制的方法及装置 Download PDFInfo
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- WO2016090947A1 WO2016090947A1 PCT/CN2015/087391 CN2015087391W WO2016090947A1 WO 2016090947 A1 WO2016090947 A1 WO 2016090947A1 CN 2015087391 W CN2015087391 W CN 2015087391W WO 2016090947 A1 WO2016090947 A1 WO 2016090947A1
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- adjustment
- gain
- uplink transmit
- transmit power
- gain adjustment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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- This application relates to, but is not limited to, radio frequency technology.
- a ground-to-air communication terminal In the wireless system, a ground-to-air communication terminal, a customer premises equipment (CPE), a relay (Relay Node), a test terminal equipment, and the like require a special terminal side device. Terminal equipment such as ground-to-air communication, CPE and Relay for backhaul function and edge coverage, and terminal equipment dedicated to drive test and test.
- CPE customer premises equipment
- Relay Node relay Node
- Terminal equipment such as ground-to-air communication, CPE and Relay for backhaul function and edge coverage, and terminal equipment dedicated to drive test and test.
- Terminal-side devices need to support high-power transmission, long-distance communication, special test functions, and special performance indicators.
- the terminal equipment needs to perform uplink power control, so as to ensure that the receiving power of the base station equipment is normal, and mutual interference of the terminal equipment does not occur.
- FIG. 1 is a flowchart of a power control process of a terminal device of the related art, as shown in FIG. 1 , including:
- Step 100 After the power is turned on, the terminal side device accesses the network.
- Step 101 The terminal side device detects the expected received power value sent by the base station, and calculates the wireless link path loss.
- Step 102 The terminal side device calculates uplink transmit power according to the expected received power of the base station and the path loss of the wireless link.
- Step 103 Calculate the power control factor of the baseband according to the calculated uplink transmission power according to the RF gain, and use the factor to perform baseband signal processing;
- Step 104 If the terminal does not currently perform service processing, or the base station does not schedule uplink services, the system may enter the power off state.
- the terminal side device requires a large dynamic range of the transmit power, and the power amplifier (Power Amplifier, PA for short) has a limited dynamic range, when a large power dynamic adjustment is required, there is not necessarily a device that conforms to the performance of the power amplifier; The PA cost is high, and the technical method of power control through PA cannot be applied in practice.
- the power amplifier Power Amplifier, PA for short
- This paper provides a method and device for implementing power control, which can solve the application and cost problem of using PA to adjust when performing uplink transmit power.
- a method of implementing power control comprising:
- the bins of two or more RF gain adjustments in which the adjustment interval is equal are set in advance;
- the binning of the radio frequency gain adjustment is determined according to the uplink transmit power value required by the terminal, and the baseband digital power is adjusted according to the adjustment unit within the determined bin of the RF gain adjustment.
- adjacent ones of the RF gain adjusted bins have coincident regions.
- the determining, according to the uplink transmit power value required by the terminal, determining a bin of the radio frequency gain adjustment, and before adjusting the baseband digital power according to the adjustment unit in the determined offset of the radio gain adjustment further comprising: receiving The expected received power of the base station is calculated to obtain the uplink transmit power value required by the terminal.
- determining the binning of the radio frequency gain adjustment according to the uplink transmit power value required by the terminal includes:
- the current RF gain bin is kept unchanged; when the current uplink transmit power value is not in the current RF gain adjusted bin.
- the interval of the radio frequency gain adjustment including the current uplink transmit power value is determined according to the current uplink transmit power value and the interval of each radio gain gain bin.
- adjusting the baseband digital power according to the adjustment unit includes:
- An apparatus for implementing power control comprising: an RF gain unit, a baseband digital unit, and a power control unit;
- the RF gain unit is configured to: preset two or more RF gain adjustment bins with equal adjustment intervals according to an adjustment range of the uplink transmit power of the terminal;
- the baseband digital unit is set to: preset the baseband digital power adjustment unit according to the set frequency offset adjustment bin;
- the power control unit is configured to: determine a binning of the radio frequency gain adjustment according to the uplink transmit power value required by the terminal, and adjust the baseband digital power according to the adjustment unit in the determined bin of the RF gain adjustment.
- adjacent ones of the RF gain adjusted bins have coincident regions.
- the apparatus further includes a power calculation unit, configured to: calculate an uplink transmit power value required to obtain the terminal according to the expected received power of the received base station.
- the power control unit is set to,
- the current RF gain bin is kept unchanged; when the current uplink transmit power value is not in the current RF gain adjusted bin And determining, according to the current uplink transmit power value and the interval of each radio gain gain bin, a binning of the radio frequency gain adjustment including the current uplink transmit power value;
- the baseband digital power is adjusted in accordance with the adjustment unit within the determined binning of the RF gain adjustment.
- the power control unit is set to,
- a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
- the technical solution provided by the embodiment of the present invention includes: presetting two or more radio frequency gain adjustment bins with equal adjustment intervals according to an adjustment range of uplink transmit power of the terminal; Adjusting the gain adjustment, presetting the adjustment unit of the baseband digital power; determining the bin of the RF gain adjustment according to the required uplink transmit power value of the terminal, and adjusting according to the adjustment unit in the determined offset of the RF gain adjustment Baseband digital power.
- the uplink transmission power required by the terminal is obtained through the adjustment of the binning of the RF gain adjustment and the adjustment of the baseband digital power, and the power control is realized, thereby achieving the effect of reducing the cost of the power amplifier device.
- 1 is a power control flow of a terminal side device of the related art
- FIG. 2 is a flowchart of a method for implementing power control according to an embodiment of the present invention
- FIG. 3 is a structural block diagram of an apparatus for implementing power control according to an embodiment of the present invention.
- FIG. 4 is a schematic diagram of implementing power control according to an embodiment of the present invention.
- FIG. 2 is a flowchart of a method for implementing power control according to an embodiment of the present invention. According to an adjustment range of an uplink transmit power of a terminal, a binning of two or more radio frequency gain adjustments in which an adjustment interval is equal is set in advance;
- the adjustment unit of the baseband digital power is preset; as shown in FIG. 2, it also includes:
- Step 201 Determine a bin of the radio frequency gain adjustment according to the uplink transmit power value required by the terminal, and adjust the baseband digital power according to the adjustment unit in the determined bin of the RF gain adjustment.
- the baseband value adjustment is the power adjustment in the RF gain adjustment bin.
- the RF gain adjustment has a binning of 10-20, and when the power fluctuates between 10 and 20, the baseband digital adjustment is used to adjust. Determining the bins of the RF gain adjustment according to the required uplink transmit power value of the terminal includes:
- the current RF gain bin is kept unchanged; when the current uplink transmit power value is not in the bin of the current RF gain adjustment And determining, according to the current uplink transmit power value and the interval of each radio gain gain bin, a binning of the radio frequency gain adjustment including the current uplink transmit power value.
- the current uplink transmit power value is not within the range of the current RF gain adjustment, there may be two cases of the re-determined RF gain bin; one is that the determined RF gain adjusted bin is not in the RF gain adjustment.
- Adjusting the baseband digital power according to the adjustment unit includes:
- the minimum value of the interval of the binning of the RF gain adjustment may be replaced by other reference coordinate values set by a technician, such as an intermediate value, a maximum value, and the like.
- step 201 the method of the embodiment of the present invention further includes step 200,
- Step 200 Calculate, according to the expected received power of the received base station, an uplink transmit power value required to obtain the terminal.
- the adjacent RF gain adjusted bins have coincident regions.
- Setting the corresponding coincidence area between each bin is a coincidence value obtained according to the experience of the technician. Generally, it is set by the fluctuating frequency of the power adjustment; for example, the power fluctuates frequently within a certain range, and the overlap region can be set. The value is larger, that is, the overlap area between the two RF gain adjustment bins is larger, because the coincidence area is larger, the RF gain can be avoided frequently between each file. Adjustment.
- the binning of a general instrument mainly uses a binning of a non-coinciding region, for example, 0 to 10, 10 to 20, 20 to 30, etc.; in order to avoid frequent adjustment of the binning of the RF gain adjustment, in the embodiment of the present invention,
- the overlapping area is set between the adjacent RF gain adjustment bins.
- the 0 to 30 is still used as an example.
- the RF gain adjustment of 0 to 12.5, 7.5 to 22.5, and 17.5 to 30 can be set to adjust the power in the coincident area.
- the baseband digital power can be used for power control while maintaining the current RF gain adjustment bin.
- the power required by the terminal is obtained by adjusting the RF gain bin and the baseband digital power, and the power control is realized, thereby achieving the effect of reducing the cost of the power amplifier device.
- FIG. 3 is a structural block diagram of an apparatus for implementing power control according to an embodiment of the present invention. As shown in FIG. 3, the method includes: an RF gain unit 31, a baseband digital unit 32, and a power control unit 33;
- the RF gain unit 31 is configured to: preset two or more RF gain adjustment bins with equal adjustment intervals according to an adjustment range of the uplink transmit power of the terminal;
- the baseband digital unit 32 is configured to: preset a baseband digital power adjustment unit according to the set frequency offset adjustment bin;
- the power control unit 33 is configured to: determine a bin of the radio frequency gain adjustment according to the uplink transmit power value required by the terminal, and adjust the baseband digital power according to the adjustment unit in the determined bin of the radio gain adjustment.
- adjacent bins of the RF gain adjustment have overlapping regions between them.
- the apparatus of the embodiment of the present invention further includes a power calculating unit 34, configured to: calculate an uplink transmit power value required by the terminal according to the expected received power of the received base station.
- the power control unit 33 is set to,
- the current RF gain bin is kept unchanged; when the current uplink transmit power value is not in the current RF gain adjusted bin And determining, according to the current uplink transmit power value and the interval of each radio gain gain bin, a binning of the radio frequency gain adjustment including the current uplink transmit power value;
- P Time represents the baseband digital power in dbfs
- P Ant indicates the uplink transmit power when the terminal device is working, and the unit is dbm;
- P Max represents the minimum transmit power supported by the terminal device
- P Min represents the maximum transmit power supported by the terminal device
- G i represents the value of each binned RF gain, and the existing RF link gain [G 0 , G 1 ... G i ] of the gear position [0, 1, ... i ].
- the baseband digital power has a corresponding power adjustment range on each of the RF gain adjustment bins, and the adjustment unit is the same. For example, when the RF gain is in the binning, assuming that the binning value represented by each gear is 10dbm, then in the binning of each RF gain adjustment, after determining the binning of the RF gain adjustment, the baseband digital power can be adjusted. Achieve power adjustment in the range of 10dbm. The size of each adjustment is determined according to the setting of the adjustment unit.
- the uplink transmit power working range is satisfied,
- FIG. 4 is a schematic diagram of implementing power control according to an embodiment of the present invention. As shown in FIG. 4, the uplink transmit power corresponding to the device at time [T 0 , T 1 , T 2 , T 3 , ] is sequentially changed.
- T 0 time Assume the required uplink transmit power Adjustment interval of the binning of the RF gain adjustment of the binning of the level 0 RF gain adjustment
- the baseband digital power is calculated according to the required uplink transmit power and the power magnitude represented by the RF gain bin G 0 , and the offset of the determined RF gain adjustment and the adjustment of the baseband digital power are determined.
- the power control of the required uplink transmit power at time T 0 is completed.
- T 1 time required uplink transmit power
- the bins in the RF gain adjustment are G 0 and the offset of the RF gain adjustment is the coincident region of G 1
- the calculation determines that the binning of the RF gain adjustment is G 0 and the baseband digital adjustment cannot be completed. Therefore according to Calculating a binning of the RF gain adjustment that determines the required uplink transmit power, assuming G 1 , by based on the uplink transmit power
- the power level represented by the binning G 1 of the RF gain adjustment is calculated to obtain the adjusted value of the baseband digital power, and the power control at the time T 2 is completed by adjusting the baseband digital power.
- T 3 moment required uplink transmit power
- the adjustment interval of the bin still in the level 1 RF gain adjustment But at the same time, it is also in the adjustment range of the 0th-level RF gain adjustment.
- the power level calculation of the baseband digital power is obtained by calculating the power level indicated by the binning G 1 of the RF gain adjustment, and the power control at the time T 3 is completed by adjusting the baseband digital power.
- the power value represented by the binning G 0 of the RF gain adjustment is calculated to obtain the adjusted value of the baseband digital power, and the power control at the time T 4 is completed by adjusting the baseband digital power.
- T 5 time required uplink transmit power Already out of the working range of the device According to the minimum power of the terminal equipment Perform binning of RF gain adjustment and adjustment of baseband digital power.
- T 6 moment required uplink transmit power Already out of the working range of the device [P Min , P Max ], according to the minimum power of the terminal device Perform binning of RF gain adjustment and adjustment of baseband digital power.
- the dynamic range of the uplink transmit power of the device is ensured [P Min , P Max ]; according to the working scene and power variation of the device, the coincident region between each RF gain bin is reasonably selected; Buffer range to avoid frequent switching of RF gain.
- all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
- the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
- the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
- the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
- the uplink transmission power required by the terminal is obtained through the adjustment of the binning of the RF gain adjustment and the adjustment of the baseband digital power, and the power control is realized, thereby achieving the effect of reducing the cost of the power amplifier device. Since the adjacent RF gain adjustment bins have overlapping regions, the RF gain is frequently switched, thereby improving the stability of the device.
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Abstract
本文公布一种实现功率控制的方法及装置,所述方法包括:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
Description
本申请涉及但不限于射频技术。
无线系统中,存在地空通信终端,用户端设备(Customer Premise Equipment,简称CPE)、中继(Relay Node)、测试终端设备等要求特殊的终端侧设备。如地空通信的终端侧设备、实现回传功能和边缘覆盖的CPE和Relay、以及专门用于路测和测试的终端设备。
终端侧设备需要支持大功率发射,远距离通信,特殊的测试功能、特殊的性能指标等功能。同时终端设备需要做上行功率控制,从而保证基站设备接收功率正常,并且不会发生终端设备的相互干扰。
图1为相关技术的终端侧设备功率控制流程,如图1所示,包括:
步骤100、上电后,终端侧设备接入到网络中;
步骤101、终端侧设备检测到基站下发的期望接收功率值,同时计算无线链路路损;
步骤102、终端侧设备根据基站期望接收功率,无线链路路损,计算出上行发射功率;
步骤103、根据计算获得的上行发射功率,根据射频增益直接计算出基带的功率控制因子,并用该因子进行基带信号处理;
步骤104、如果终端当前不进行业务处理,或者基站未调度上行业务,则可进入关闭功放状态。
由于终端侧设备需要较大的发射功率动态范围,而功率放大器(Power Amplifier,简称PA)动态范围有限,在需要进行较大的功率动态调整时,不一定存在符合功放性能的器件;另外,由于PA成本较高,通过PA实现功率控制的技术方法无法在实际中进行应用。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本文提供一种实现功率控制的方法及装置,能够解决进行上行发射功率时采用PA进行调整的应用和成本问题。
一种实现功率控制的方法,包括:
根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;
根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;
根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
可选地,相邻的所述射频增益调整的分档之间具有重合区域。
可选地,所述根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率之前还包括:根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
可选地,根据终端所需的上行发射功率值确定射频增益调整的分档包括:
根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;
当所述当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档。
可选地,根据调整单位调整基带数字功率包括:
计算所述所需的上行发射功率值与射频增益调整的分档的区间的最小值
的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
一种实现功率控制的装置,包括:射频增益单元、基带数字单元和功率控制单元;其中,
射频增益单元,设置为:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;
基带数字单元,设置为:根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;
功率控制单元,设置为:根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
可选地,相邻的所述射频增益调整的分档之间具有重合区域。
可选地,该装置还包括功率计算单元,设置为:根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
可选地,功率控制单元是设置为,
根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;
当所述当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档;
在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
可选地,功率控制单元是设置为,
根据所述终端所需的上行发射功率值确定射频增益调整的分档;
计算所述所需的上行发射功率值与射频增益调整的分档的区间的最小值的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行上述任一项的方法。
与相关技术相比,本发明实施例提供的技术方案,包括:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。本发明实施例通过射频增益调整的分档的调整和基带数字功率的调整,获得了终端所需的上行发射功率,实现了功率控制,达到了降低功放器件成本的效果。
在阅读并理解了附图和详细描述后,可以明白其他方面。
附图概述
图1为相关技术的终端侧设备功率控制流程;
图2为本发明实施例实现功率控制的方法的流程图;
图3为本发明实施例实现功率控制的装置的结构框图;
图4为本发明实施例实现功率控制的示意图。
下文中将结合附图对本申请的实施方式进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
图2为本发明实施例实现功率控制的方法的流程图,根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;
根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;如图2所示,还包括:
步骤201、根据终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据调整单位调整基带数字功率。
基带数值调整是对射频增益调整分档内的功率调整,例如,射频增益调整的一个分档为10~20、当功率在10~20之间波动时,通过基带数字调整实现调整。根据终端所需的上行发射功率值确定射频增益调整的分档包括:
根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;
当当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档。
如果当前上行发射功率值不处于当前的射频增益调整的分档的区间内,则重新确定的射频增益分档可能存在两种情况;一种是确定的射频增益调整的分档不处于射频增益调整的分档之间的重合区域,此时只有一个符合条件的射频增益调整的分档;另一种是确定的射频增益调整的分档处于射频增益调整的分档之间的重合区域,此时有两个符合条件的射频增益调整的分档,此时,可以任意选择其中之一确定为射频增益调整的分档。
根据调整单位调整基带数字功率包括:
计算所需的上行发射功率值与射频增益调整的分档的区间的最小值的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
其中,射频增益调整的分档的区间的最小值可以用其他根据技术人员设定的参考坐标值进行替换,例如中间值、最大值等。
在步骤201之前,本发明实施例方法还包括步骤200,
步骤200、根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
在本发明实施例中,相邻的射频增益调整的分档之间具有重合区域。
每个分档之间设置相应的重合区域是根据技术人员经验获得的重合数值,一般的,通过功率调整的波动频率进行设定;例如、功率在一定区间范围内波动频繁,可以设置重合区域的数值较大,即两个射频增益调整分档之间重合区域较大,因为重合区域较大,可以避免射频增益在每个档之间频繁
调整。一般的仪器(例如示波器)的分档主要采用无重合区域的分档,例如0~10、10~20、20~30等;本发明实施例为了避免射频增益调整的分档的频繁调整,在相邻的射频增益调整的分档之间设立重合区域,仍以0~30为例,可以设置0~12.5、7.5~22.5、17.5~30的射频增益调整的分档,在重合区域进行功率调整时,可以在保持当前射频增益调整的分档不变的前提下,利用基带数字功率进行功率控制。
本发明实施例通过射频增益分档和基带数字功率的调整,获得了终端所需的功率,实现了功率控制,达到了降低功放器件成本的效果。
图3为本发明实施例实现功率控制的装置的结构框图,如图3所示,包括:射频增益单元31、基带数字单元32和功率控制单元33;其中,
射频增益单元31,设置为:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;
基带数字单元32,设置为:根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;
功率控制单元33,设置为:根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
本发明实施例中,相邻的射频增益调整的分档之间具有重合区域。
本发明实施例装置还包括功率计算单元34,设置为:根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
功率控制单元33是设置为,
根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;
当所述当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档;
计算所述所需的上行发射功率值与射频增益调整的分档的区间的最小值
的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
实施例1
为了清楚说明本实施例,对实施例中涉及的参数进行必要的说明。
PTime表示基带数字功率,单位为dbfs;
PAnt表示终端设备工作时的上行发射功率,单位为dbm;
PMax表示终端设备支持的最小发射功率;
PMin表示终端设备支持的最大发射功率;
Gi表示每个分档射频增益的数值,存在的档位[0,1,...i]对应的射频链路增益[G0,G1...Gi]。
每个分档射频增益之间存在重合区域,[G0,G1...Gi]可以表示终端的上行发射功率的调整范围。
基带数字功率在每一个射频增益调整的分档上都存在对应的功率调整范围,调整单位相同。例如、当射频增益在分档时,假设每档表示的分档数值为10dbm,则处于每个射频增益调整的分档时,在确定射频增益调整的分档后,可以通过基带数字功率的调整实现10dbm范围内的功率调整。每次调整的大小根据调整单位的设定进行确定。
基带数字功率PTime和射频增益为Gi,对应上行发射功率满足PAnt=Gi+PTime。
T0时刻:假设所需上行发射功率在第0级射频增益调整的分档的射频增益调整的分档的调整区间通过确定射频增益调整的分档为G0,基带数字功率根据所需上行发射功率与射频增益分档G0表示的功率大小计算获得,通过确定的射频增益调整的分档和基带数字功率的调整,完成T0时刻的所需上行发射功率的功率控制。
T1时刻:所需上行发射功率仍然在第0级射频增益调整的分档的调整区间但同时也在第1级射频增益调整的分档的调整区间及处于射频增益调整的分档为G0和射频增益调整的分档为G1的重合区域通过判断可以不进行射频增益调整的分档的调整;通过根据所需上行发射功率与射频增益调整的分档G0表示的功率大小计算获得基带数字功率的调整数值,通过基带数字功率的调整,完成T1时刻的功率控制。
T2时刻:所需上行发射功率在第1级射频增益调整的分档的调整区间通过计算确定射频增益调整的分档为G0和基带数字调整无法完成将功率调整到因此根据计算确定该所需上行发射功率的射频增益调整的分档,假设是G1,通过根据上行发射功率与射频增益调整的分档G1表示的功率大小计算获得基带数字功率的调整数值,通过基带数字功率的调整,完成T2时刻的功率控制。
T3时刻:所需上行发射功率仍然在第1级射频增益调整的分档的调整区间但同时也在第0级射频增益调整的分档的调整区间通过判断可以不进行射频增益调整的分档的调整;通过根据上行发射功率与射频增益调整的分档G1表示的功率大小计算获得基带数字功率的调整数值,通过基带数字功率的调整,完成T3时刻的功率控制。
T4时刻:所需上行发射功率在第0级射频增益调整的分档的调整区间通过判断进行射频增益调整的分档的调整,调整到G0,通过根据上行发射功率与射频增益调整的分档G0表示的功率大小计算获得基带数字功率的调整数值,通过基带数字功率的调整,完成T4时刻的功率控制。
上述T0->T1->T2和T3->T4->T5过程中,和功率范围在被第0级和第1级重合区域。但按照计算规则,优先保证射频增益调整的分档不变。即发射功率变大时,只在超过进行射频增益调整的分档的切换;在发射功率变小时,只在超过时进行射频增益调整的分档切换,则发射功率在附近波动时,不产产生射频增益调整的分档的频繁切换,保证了射频工作稳定。
本发明实施例为保证设备的上行发射功率动态范围[PMin,PMax];根据设备工作场景和功率变化情况,合理选取每个射频增益分档之间的重合区域;保证射频有缓冲范围,避免射频增益进行频繁的切换。从而达到降低功放成本和功耗、提升设备稳定性的效果。
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。
上述实施例中的装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。
上述实施例中的装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。
本发明实施例通过射频增益调整的分档的调整和基带数字功率的调整,获得了终端所需的上行发射功率,实现了功率控制,达到了降低功放器件成本的效果。由于相邻的射频增益调整的分档之间具有重合区域,避免射频增益进行频繁的切换,从而提升了设备的稳定性。
Claims (11)
- 一种实现功率控制的方法,包括:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
- 根据权利要求1所述的方法,其中,相邻的所述射频增益调整的分档之间具有重合区域。
- 根据权利要求2所述的方法,其中,所述根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率之前还包括:根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
- 根据权利要求2或3所述的方法,其中,所述根据终端所需的上行发射功率值确定射频增益调整的分档包括:根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;当所述当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档。
- 根据权利要求2或3所述的方法,其中,所述根据调整单位调整基带数字功率包括:计算所述所需的上行发射功率值与射频增益调整的分档的区间的最小值的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
- 一种实现功率控制的装置,包括:射频增益单元、基带数字单元和功率控制单元;其中,射频增益单元,设置为:根据终端的上行发射功率的调整范围,预先设置调整区间均等的两个或两个以上射频增益调整的分档;基带数字单元,设置为:根据设置的射频增益调整的分档,预先设置基带数字功率的调整单位;功率控制单元,设置为:根据所述终端所需的上行发射功率值确定射频增益调整的分档,在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
- 根据权利要求6所述的装置,其中,相邻的所述射频增益调整的分档之间具有重合区域。
- 根据权利要求7所述的装置,还包括:功率计算单元,设置为:根据接收的基站的期望接收功率,计算获得所述终端所需的上行发射功率值。
- 根据权利要求7或8所述的装置,其中,所述功率控制单元是设置为,根据终端所需的上行发射功率值及当前射频增益调整的分档的区间,确定是否保持当前射频增益调整的分档不变;当所述当前上行发射功率值处于当前的射频增益调整的分档的区间内,则保持当前的射频增益分档不变;当所述当前上行发射功率值不处于当前的射频增益调整的分档的区间内,根据所述当前上行发射功率值及每个射频增益分档的区间,确定一个包含当前上行发射功率值的射频增益调整的分档;在确定的射频增益调整的分档内根据所述调整单位调整基带数字功率。
- 根据权利要求7或8所述的装置,其中,所述功率控制单元是设置为,根据所述终端所需的上行发射功率值确定射频增益调整的分档;计算所述所需的上行发射功率值与射频增益调整的分档的区间的最小值的差值,根据预先设置的所述调整单位及计算出的差值调整基带数字功率。
- 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行权利要求1-5任一项的方法。
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CN102369769A (zh) * | 2011-08-30 | 2012-03-07 | 华为技术有限公司 | 一种调整增益的方法及设备 |
CN103002552A (zh) * | 2011-09-08 | 2013-03-27 | 联芯科技有限公司 | 自动功率控制码表的获取方法、自动功率控制方法及装置 |
CN103298091A (zh) * | 2012-03-01 | 2013-09-11 | 中兴通讯股份有限公司 | 上行发射功率确定方法及装置 |
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