WO2015103936A1 - 降低功耗的方法与装置 - Google Patents

降低功耗的方法与装置 Download PDF

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Publication number
WO2015103936A1
WO2015103936A1 PCT/CN2014/095754 CN2014095754W WO2015103936A1 WO 2015103936 A1 WO2015103936 A1 WO 2015103936A1 CN 2014095754 W CN2014095754 W CN 2014095754W WO 2015103936 A1 WO2015103936 A1 WO 2015103936A1
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WO
WIPO (PCT)
Prior art keywords
wireless communication
communication module
service data
supply voltage
voltage value
Prior art date
Application number
PCT/CN2014/095754
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English (en)
French (fr)
Inventor
王同波
庞治华
唐英明
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to KR1020167021593A priority Critical patent/KR101842606B1/ko
Priority to JP2016563232A priority patent/JP6332883B2/ja
Priority to US15/111,458 priority patent/US9907021B2/en
Priority to EP14878291.5A priority patent/EP3082367B1/en
Publication of WO2015103936A1 publication Critical patent/WO2015103936A1/zh

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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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • 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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • 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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for reducing power consumption.
  • Wi-Fi Wireless Fidelity
  • Wi-Fi technology brings a lot of convenience to users, due to its lack of 2G/3G power control technology, there is a problem of large power consumption, which affects the use of smart terminals.
  • the following devices are required to implement the Wi-Fi function, as shown in FIG. 1 : a Wi-Fi chip, a power amplifier (Power Amplifier, PA), a filter, and an antenna.
  • the Wi-Fi chip sets the PA to be enabled (the PA_EN enable signal is valid), and sends a service request signal carrying the data to be transmitted to the PA, and the PA amplifies the service request signal during the valid period of the PA and sends it to the The filter and the filter filter the processed service request signal, and then transmit the signal to the external communication device through the antenna.
  • the Wi-Fi chip sets the static bias point of the PA to be high, otherwise, it will result in transmission. Signal cut-off distortion; and, the Wi-Fi chip sets the same static bias point for the PA for different transmission rates, and thus unified management.
  • the prior art implementation of the Wi-Fi function also exposes the following drawbacks: at different transmission rates, the Wi-Fi chip sets a uniform static bias point for the PA, so that the PA function is high when the transmission rate is high. The consumption is in a higher state, and when the transmission rate is low, the power consumption of the PA is also in a high state. The power consumption of the PA is always in a high state and cannot be reduced. At the same time, since the power consumption of the PA is always in a high state, the battery in the communication device needs to continuously supply power to the Wi-Fi chip and the PA, resulting in power consumption of the battery. The amount is too large.
  • Embodiments of the present invention provide a method and apparatus for reducing power consumption, which enable a Wi-Fi chip to set different static bias points according to different transmission rates, thereby reducing power consumption of the PA, and also reducing communication equipment.
  • the power consumption of the battery achieves the purpose of saving electricity.
  • an embodiment of the present invention provides a method for reducing power consumption, where the method includes:
  • the wireless communication module included in the communication device identifies whether there is currently service data to be sent;
  • the wireless communication module acquires the receiving attribute information of the wireless communication module
  • the wireless communication module determines a sending rate of sending the service data
  • the receiving attribute information acquired by the wireless communications module specifically includes: received signal strength indication RSSI information and error packet rate PER information;
  • the wireless communication module determines, by the wireless communication module, the sending rate of sending the service data by using the receiving attribute information, specifically:
  • the wireless communication module uses the signal strength indication RSSI information and the error packet rate PER information to search for the signal strength indication RSSI information and the error packet rate PER information from the stored transmission rate table. Sending the transmission rate of the service data.
  • the wireless communication is performed according to the sending rate
  • the module determines a power supply voltage value of the power amplifier connected to the wireless communication module, specifically:
  • the wireless communication module acquires a modulation and coding policy MCS index number corresponding to the sending rate
  • the wireless communication module acquires a rate grouping category to which the modulation and coding policy MAC index number belongs according to the modulation and coding policy MAC index number;
  • the wireless communication module determines a supply voltage value for the power amplifier that matches the rate packet class.
  • the method further includes:
  • the wireless communication module transmits a first control signal to a DC-DC converter connected to the wireless communication module, the first control signal including first power supply information, such that the DC-DC converter is according to the first A power supply message that provides a matching supply voltage value for the power amplifier.
  • the wireless communication module includes:
  • the wireless communication module determines that the power amplifier has a supply voltage value of 0V.
  • the method further includes:
  • the wireless communication module determines whether the service data has been sent
  • the wireless communication module determines that the power supply voltage value of the power amplifier is 0V;
  • the wireless communication module acquires the received attribute information.
  • the method further includes:
  • the wireless communication module transmits a second control signal to a DC-DC converter connected to the wireless communication module, the second control signal including second power supply information, such that the DC-DC converter is according to the
  • the two power supply information stops providing the power amplifier with a matching supply voltage value.
  • an embodiment of the present invention provides an apparatus for reducing power consumption, where the apparatus includes:
  • An identification unit configured to identify whether there is currently service data to be sent when the communication device has turned on the wireless fidelity Wi-Fi mode
  • An obtaining unit configured to acquire receiving attribute information of the device if the service data currently exists
  • a determining unit configured to determine, by using the receiving attribute information, a sending rate of sending the service data
  • the determining unit is further configured to determine, according to the sending rate, a power supply voltage value of a power amplifier connected to the wireless communication module, so that the power amplifier carries the service data under the power supply voltage value
  • the service request signal is amplified.
  • the receiving attribute information acquired by the acquiring unit specifically includes: received signal strength indication RSSI information and error packet rate PER information;
  • the determining unit is specifically configured to: use the signal strength indication RSSI information and the error packet rate PER information to search for the signal strength indication RSSI information and the error packet rate PER information from the stored transmission rate table. Matching the transmission rate of the transmitted service data.
  • the determining unit is specifically configured to:
  • a supply voltage value of the power amplifier that matches the rate packet class is determined.
  • the apparatus further includes:
  • a sending unit configured to send a first control signal to a DC-DC converter connected to the wireless communication module, where the first control signal includes first power supply information, so that the DC-DC converter is configured according to the A power supply message that provides a matching supply voltage value for the power amplifier.
  • the determining unit is further configured to:
  • the power supply voltage value of the power amplifier is 0V.
  • the apparatus further includes:
  • a determining unit configured to determine whether the service data has been sent
  • the determining unit is further configured to: if the service data has been sent, determine that the power supply voltage value of the power amplifier is 0V;
  • the obtaining unit is further configured to acquire the receiving attribute information if the service data is not sent.
  • the sending unit is further configured to:
  • the wireless communication module determines, according to the acquired receiving attribute information, the sending rate of the service data to be sent, and determines the power amplifier connected to the self according to the sending rate.
  • Supply voltage value to make power amplification The device amplifies the service request signal carrying the service data under the determined supply voltage value, and the wireless communication module determines the power supply voltage value of the power amplifier according to different transmission rates, and further determines the power supply voltage value according to different power supply voltage values. Determine the static working point at different positions, so that the power amplifier adjusts the power consumption according to different transmission rates during the enable period, thereby reducing the power consumption of the power amplification, and also reducing the power consumption of the battery in the communication device. The purpose of saving electricity.
  • FIG. 1 is a block diagram of a hardware circuit for implementing a Wi-Fi function in the prior art
  • FIG. 2 is a flowchart of a method for reducing power consumption according to Embodiment 1 of the present invention
  • FIG. 3 is a block diagram of a hardware circuit according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an apparatus for reducing power consumption according to Embodiment 2 of the present invention.
  • FIG. 2 is a flowchart of a method for reducing power consumption according to the embodiment of the present invention.
  • the implementation body is a wireless communication module, and the wireless communication module may be included in the communication device, and the communication device may be specifically a device that needs to perform service data transmission, such as a mobile terminal or a router.
  • the embodiment specifically includes the following steps:
  • Step 210 When the communication device has turned on the wireless fidelity Wi-Fi mode, the wireless communication module included in the communication device identifies whether there is currently service data to be sent.
  • the wireless communication module included in the communication device identifies whether there is currently any service data to be transmitted.
  • the service data to be transmitted specifically includes data input by a user or data generated by a processor in the communication device.
  • the communication device receives an operation instruction input by the user, and the communication device turns on the Wi-Fi mode according to the operation instruction, thereby entering the Wi-Fi mode, and when the communication device enters the Wi-Fi mode, the wireless communication module The trigger itself starts to identify whether there is currently a service data to be sent.
  • the user desires to use the communication device to connect to the wireless network.
  • the user first inputs an operation instruction, and the communication device turns on the Wi-Fi mode according to the operation instruction, and the wireless communication module identifies whether there is currently a service data to be transmitted.
  • the wireless communication module is specifically a Wi-Fi chip.
  • Step 220 If the service data currently exists, the wireless communication module acquires the receiving attribute information of the wireless communication module.
  • the wireless communication module acquires its own receiving attribute information.
  • the acquiring, by the wireless communication module, the receiving attribute information of the wireless communication module specifically includes:
  • the wireless communication module detects a related attribute of the received signal received by the antenna, wherein the antenna is in the communication device, and the received signal specifically refers to another Wi- that performs data communication with the communication device. Fi device sent.
  • the wireless communication module can determine the transmission rate of the transmitted service data according to the attributes of the received signal.
  • the receiving attribute information specifically includes: Received Signal Strength Indication (RSSI) information and a pairwise error probability, as an example and not limitation.
  • RSSI Received Signal Strength Indication
  • PER pairwise error probability
  • the user inputs the user name and password for the wireless network connection again, and the wireless communication module recognizes that there is currently the service data to be sent, and the wireless communication module acquires the RSSI information and the PER information.
  • Step 230 Using the receiving attribute information, the wireless communication module determines a sending rate of sending the service data.
  • the wireless communication module determines the sending rate of the service data to be sent.
  • the using the receiving attribute information, the determining, by the wireless communication module, the sending rate of the sending the service data specifically includes:
  • the wireless communication module finds the transmission rate of the transmission service data that matches the signal strength indication RSSI information and the packet error rate PER information from the stored transmission rate table.
  • the transmission rate table is determined by the manufacturer before the wireless communication module is shipped from the manufacturer, and the transmission rate table determined by each manufacturer is different.
  • the sending rate specifically refers to a physical layer sending rate (PHY_RATE) used when the wireless communication module sends service data.
  • PHY_RATE physical layer sending rate
  • the sending rate table is stored in a storage unit of the wireless communication module, and is stored by the manufacturer before the wireless communication module is shipped from the factory, and includes a plurality of RSSI information and PER information in the sending rate table. Corresponding different transmission rates.
  • Step 240 The wireless communication module determines, according to the sending rate, a power supply voltage value of a power amplifier connected to the wireless communication module, so that the power amplifier carries the service data under the power supply voltage value.
  • the service request signal is amplified.
  • the wireless communication module determines a power supply voltage value of the power amplifier connected to itself, so that the power amplifier performs the service request signal carrying the service data under the power supply voltage value. Zoom in.
  • the line communication module determines the power supply voltage value of the power amplifier according to different transmission rates, and determines the static working point of the different positions according to different power supply voltage values, so that the power amplifier is in an enabling period according to different transmission rates.
  • the power consumption of the power amplification is reduced, and at the same time, the power consumption of the battery in the communication device is also reduced, thereby achieving the purpose of power saving.
  • the determining, by the wireless communication module, the power supply voltage value of the power amplifier connected to the wireless communication module according to the sending rate specifically includes:
  • the wireless communication module acquires a modulation and coding policy MCS index number corresponding to the sending rate.
  • Table 1 is a table of MCS and transmission rate correspondence
  • each Modulation and Coding Scheme (MCS) index number corresponds to a set of RSSI information and a transmission rate corresponding to the PER information, that is, multiple transmission rates correspond to one MCS.
  • the index number corresponds to a set of RSSI information and a transmission rate corresponding to the PER information, that is, multiple transmission rates correspond to one MCS.
  • GI is the guard interval (Guard Interval) in order to ensure data transmission.
  • a guard interval that is, a GI, is set between the adjacent service data to ensure that the receiver can correctly parse the service data; ns is nanosecond.
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying (QPSK), or quadrature phase shift keying; it uses four different phase differences of the carrier to characterize the input digital information.
  • Each modulation in QPSK can transmit 2 bits of information, which is transmitted through the four phases of the carrier.
  • QAM Quadrature Amplitude Modulation
  • 16-QAM refers to a QAM modulation scheme including 16 symbols
  • 64-QAM refers to a QAM modulation scheme including 64 symbols
  • 256QAM refers to a QAM modulation scheme of 256 symbols.
  • the wireless communication module After obtaining the MCS index number corresponding to the sending rate, the wireless communication module acquires the rate grouping class n to which the MCS index number belongs according to the MCS index number. As shown in Table 2, Table 2 is a rate grouping category table.
  • the wireless communication module After acquiring the rate packet class n to which the MCS index number belongs, using the rate packet class n, the wireless communication module determines the power supply voltage value VCC of the power amplifier that matches the rate packet class, so that the power amplifier is carried at the power supply voltage value.
  • the service request signal of the service data is amplified. As shown in Table 3, Table 3 is the power supply voltage meter.
  • the value of the Vi voltage included in the supply voltage VCC is the supply voltage value of the power amplifier.
  • the wireless communication module determines in step 230 that the MCS index number corresponding to the transmission rate of the service data to be transmitted is 0. Then, the rate grouping class n to which the MCS0 index number belongs is equal to 1, that is, the first category, and then the power supply voltage corresponding to the first category is V1, and the wireless communication module determines that the power supply voltage value of the power amplifier is V1, so that the power amplifier is When the power supply voltage value is V1, the service request signal carrying the service data is amplified.
  • the wireless communication module further includes a DC-straight
  • the flow converter transmits a first control signal, by which the DC-DC converter supplies power to the power amplifier according to the first power supply information included in the first control signal.
  • the wireless communication module transmits a first control signal to a DC-DC converter connected to the wireless communication module, the first control signal including first power supply information, such that the DC-DC converter is according to the first A power supply message that provides a matching supply voltage value for the power amplifier.
  • the wireless communication module determines the power supply voltage value of the power amplifier
  • the wireless communication module After the wireless communication module determines the power supply voltage value of the power amplifier, the wireless communication module generates a first control signal, where the first control signal includes the first power supply information, that is, the power supply voltage value of the power amplifier, and the wireless communication module will The DC-DC converter connected to itself transmits a first control signal such that the DC-DC converter provides a matching supply voltage value to the power amplifier based on the first power supply information.
  • step 210 of the embodiment of the present invention another implementation situation is further included, that is, if there is currently no service data to be sent, the wireless communication module determines a power supply voltage value of the power amplifier. It is 0V.
  • the wireless communication module transmits a second control signal to a DC-DC converter connected to the wireless communication module, the second control signal including second power supply information, such that the DC-DC converter is according to the
  • the two power supply information stops providing the power amplifier with a matching supply voltage value.
  • the wireless communication module determines that the power supply voltage value of the power amplifier is 0V
  • the wireless communication module generates a second control signal, where the second control signal includes the second power supply information, that is, the power supply voltage value of the power amplifier is 0V
  • the wireless The communication module will send a second control signal to the DC-DC converter connected to itself, so that the DC-DC converter stops providing a matching supply voltage value to the power amplifier according to the second power supply information, thereby reducing the power of the power amplifier. Consumption, to achieve the purpose of saving electricity.
  • the method further includes: determining, by the wireless communication module, whether the service data to be sent has been sent, determining the power supply voltage value of the power amplifier according to the actual situation of the sending, and reducing the power of the power amplifier. Consumption, to achieve the purpose of saving electricity. Specific steps are as follows:
  • the wireless communication module determines whether the service data has been sent
  • the wireless communication module determines that the power supply voltage value of the power amplifier is 0V;
  • the wireless communication module acquires the received attribute information.
  • the wireless communication module determines whether the service data to be sent has been sent.
  • the wireless communication module determines that the power supply voltage value of the power amplifier is 0V, and generates a second control signal, where the second control signal includes the second power supply information and sends the signal to the DC-DC converter.
  • the second control signal is such that the DC-DC converter stops providing a matching supply voltage value to the power amplifier according to the second power supply information, thereby reducing power consumption of the power amplifier and achieving power saving.
  • the wireless communication module acquires the receiving attribute information again, and repeatedly performs steps 220 to 240; re-determines the sending rate of the sending service data according to the currently acquired RSSI information and the PER information, and adjusts the power amplifier.
  • the value of the supply voltage which in turn reduces the power consumption of the power amplifier, saves power.
  • the wireless communication module determines, according to the acquired receiving attribute information, the sending rate of the service data to be sent, and determines the power supply of the power amplifier connected to itself according to the sending rate.
  • the voltage value is such that the power amplifier amplifies the service request signal carrying the service data under the determined supply voltage value, and the wireless communication module determines the power supply voltage value of the power amplifier according to different transmission rates, and then according to different
  • the power supply voltage value is a static working point at which the power amplifier determines different positions, so that the power amplifier adjusts the power consumption according to different transmission rates during the enable period, thereby reducing the power consumption of the power amplification, and also reducing the battery in the communication device.
  • the power consumption has reached the goal of saving electricity.
  • FIG. 3 is a block diagram of a hardware circuit according to an embodiment of the present invention.
  • the wireless communication module is specifically implemented by a Wi-Fi chip, and the Wi-Fi chip separately performs work.
  • the above Wi-Fi chip, power amplifier, DC-DC converter, filter connection, and antenna are all in the communication device.
  • the working process is as follows:
  • the Wi-Fi chip When the communication device has turned on the Wi-Fi mode, the Wi-Fi chip identifies whether there is currently any service data to be transmitted. If there is currently service data to be transmitted, the Wi-Fi chip acquires the reception attribute information.
  • the Wi-Fi chip sends a detection signal to the antenna through the power amplifier and the filter, and receives the reflected signal fed back by the antenna.
  • the Wi-Fi chip acquires the receiving attribute information according to the reflected signal, and the receiving attribute information specifically includes: RSSI information and PER information. .
  • the Wi-Fi chip determines the transmission rate of the transmitted service data. Using the RSSI information and the PER information, the Wi-Fi chip searches for the transmission rate of the transmission service data matching the RSSI information and the PER information from the stored transmission rate table (the Wi-Fi chip determines the transmission service based on the RSSI information and the PER information).
  • the transmission rate of the data has been described in detail in the foregoing first embodiment, and will not be repeated herein.
  • the Wi-Fi chip determines the power supply voltage value of the power amplifier according to the determined transmission rate (the Wi-Fi chip determines the power supply voltage value of the power amplifier according to the transmission rate, which has been described in detail in the foregoing first embodiment, and will not be repeated here. And transmitting a first control signal to the DC-DC converter, the DC-DC converter providing a matching supply voltage value to the power amplifier according to the first power supply information included in the first control signal, so that the power amplifier is at the supply voltage At the value, the service request signal carrying the service data is amplified.
  • the Wi-Fi chip determines the power supply voltage value of the power amplifier according to different transmission rates, and determines the static working point of the different position according to different power supply voltage values, the power amplifier is making The energy consumption can be adjusted according to different transmission rates, thereby reducing the power consumption of the power amplification, and at the same time reducing the power consumption of the battery in the communication device, thereby achieving the purpose of power saving.
  • the second embodiment of the present invention further provides a device for reducing power consumption, which is used to implement the method for reducing power consumption in the first embodiment.
  • the device includes: an identifying unit 410, and acquiring Unit 420 and determining unit 430.
  • the identifying unit 410 is configured to: when the communication device has turned on the wireless fidelity Wi-Fi mode, identify whether there is currently service data to be sent;
  • the obtaining unit 420 is configured to acquire the receiving attribute information of the device if the service data currently exists;
  • a determining unit 430 configured to determine, by using the receiving attribute information, a sending rate of sending the service data
  • the determining unit 430 is further configured to determine, according to the sending rate, a power supply voltage value of a power amplifier connected to the wireless communication module, so that the power amplifier carries the service under the power supply voltage value.
  • the service request signal of the data is amplified.
  • the receiving attribute information acquired by the acquiring unit 420 specifically includes: received signal strength indication RSSI information and error packet rate PER information;
  • the determining unit 430 is specifically configured to: use the signal strength indication RSSI information and the error packet rate PER information to find out the signal strength indication RSSI information and the packet error rate PER from the stored transmission rate table. The information is matched to the transmission rate of the transmitted service data.
  • the determining unit 430 is specifically configured to acquire, according to the sending rate, a modulation and coding policy MCS index number corresponding to the sending rate;
  • a supply voltage value of the power amplifier that matches the rate packet class is determined.
  • the device further includes: a sending unit 440, configured to send a first control signal to a DC-DC converter connected to the wireless communication module, where the first control signal includes first power supply information, so that the DC a DC converter provides a match for the power amplifier based on the first power supply information The value of the supply voltage.
  • a sending unit 440 configured to send a first control signal to a DC-DC converter connected to the wireless communication module, where the first control signal includes first power supply information, so that the DC a DC converter provides a match for the power amplifier based on the first power supply information The value of the supply voltage.
  • the determining unit 430 is further configured to determine that the power supply voltage value of the power amplifier is 0V if the service data does not currently exist.
  • the device further includes: a determining unit 450, configured to determine whether the service data has been sent;
  • the determining unit 430 is further configured to: if the service data has been sent, determining that the power supply voltage value of the power amplifier is 0V;
  • the obtaining unit 420 is further configured to acquire the receiving attribute information if the service data is not sent.
  • the sending unit 440 is further configured to send a second control signal to a DC-DC converter connected to the wireless communication module, where the second control signal includes second power supply information, so that the DC-DC converter According to the second power supply information, stopping providing the matched power supply voltage value to the power amplifier.
  • the apparatus for reducing power consumption determines, according to the acquired reception attribute information, the transmission rate of the service data to be transmitted, and determines the power amplifier connected to the transmission rate according to the transmission rate.
  • the supply voltage value is such that the power amplifier amplifies the service request signal carrying the service data under the determined supply voltage value, and the device that reduces the power consumption determines the power supply voltage value of the power amplifier according to different transmission rates.
  • the quiescent operating point of the power amplifier is determined at different positions, so that the power amplifier adjusts the power consumption according to different transmission rates during the enable period, thereby reducing the power consumption of the power amplification, and also reducing the power consumption.
  • the power consumption of the battery in the communication device achieves the purpose of power saving.
  • the steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both.
  • the software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明实施例涉及一种降低功率的方法与装置。所述方法包括：当通信设备已开启无线保真Wi-Fi模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据；如果当前存在所述业务数据，则所述无线通信模块获取接收属性信息；利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率；根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。

Description

降低功耗的方法与装置
本申请要求于2014年1月13日提交中国专利局、申请号为201410013503.2，发明名称为“降低功耗的方法与装置”的中国专利申请的优先权，在先申请文件的内容通过引用结合在本申请中。
技术领域
本发明涉及通讯技术领域，尤其涉及一种降低功耗的方法与装置。
背景技术
随着通信网络的快速普及，无线保真(Wireless Fidelity，简称：Wi-Fi)技术越来越受到大众的青睐，成为通信设备的必配功能。
尽管Wi-Fi技术给用户带来诸多便利，但是，由于其无类似2G/3G的功控技术，存在功耗较大的问题，影响了智能终端的使用。现有通信设备中，实现Wi-Fi功能需通过以下器件，如图1所示：Wi-Fi芯片、功率放大器(Power Amplifier，简称：PA)、滤波器以及天线。Wi-Fi芯片将PA设置为使能有效(PA_EN使能信号有效)，并向PA发送携带待发送数据的业务请求信号，PA在使能有效时期，对业务请求信号进行放大处理，并发送至滤波器，滤波器对经放大处理后的业务请求信号进行滤波处理后，通过天线向外部通信设备发送。
为了满足发送高速率(例如，调制方式为256QAM，64QAM)信号对线性度属性的要求，在现有技术中，Wi-Fi芯片将PA的静态偏置点设置较高,否则，将导致发送的信号截止失真；并且，Wi-Fi芯片针对不同的发送速率，为PA设置相同的静态偏置点，进而统一管理。
但是，现有技术中实现Wi-Fi功能的方案也暴露出以下缺陷：在不同的发送速率下，Wi-Fi芯片对PA设置统一的静态偏置点，使得在发送速率高时，PA的功耗处于较高的状态，在发送速率低时，PA的功耗也处于较高的状态， 导致PA的功耗一直处于较高的状态且无法降低，同时，由于PA的功耗一直处于较高的状态，通信设备中的电池需持续为Wi-Fi芯片以及PA供电，导致电池的耗电量过大。
发明内容
本发明实施例提供了一种降低功耗的方法与装置，实现了Wi-Fi芯片根据不同的发送速率，设置不同的静态偏置点，进而降低PA的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
在第一方面，本发明实施例提供了一种降低功耗的方法，所述方法包括：
当通信设备已开启无线保真Wi-Fi模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据；
如果当前存在所述业务数据，则所述无线通信模块获取所述无线通信模块的接收属性信息；
利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率；
根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
在第一种可能的实现方式中，所述无线通信模块获取的所述接收属性信息具体包括：接收信号强度指示RSSI信息以及误包率PER信息；
所述利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率具体包括：
利用所述信号强度指示RSSI信息以及所述误包率PER信息，所述无线通信模块从存储的发送速率表中查找出与所述信号强度指示RSSI信息以及所述误包率PER信息相匹配的发送所述业务数据的发送速率。
在第二种可能的实现方式中个，所述根据所述发送速率，所述无线通信 模块确定与所述无线通信模块连接的功率放大器的供电电压值具体包括：
根据所述发送速率，所述无线通信模块获取所述发送速率对应的调制与编码策略MCS索引号；
根据所述调制与编码策略MAC索引号，所述无线通信模块获取所述调制与编码策略MAC索引号所属的速率分组类别；
利用所述速率分组类别，所述无线通信模块确定与所述速率分组类别匹配的所述功率放大器的供电电压值。
结合第一方面的第二种可能的实现方式，在第三种可能的实现方式中，所述无线通信模块确定与所述速率分组类别匹配的所述功率放大器的供电电压值之后还包括：
所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配的供电电压值。
在第四种可能的实现方式中，所述当通信设备已开启无线保真Wi-F i模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据之后还包括：
如果当前未存在所述业务数据，则所述无线通信模块确定所述功率放大器的供电电压值为0V。
在第五种可能的实现方式中，所述根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值之后还包括：
所述无线通信模块判断所述业务数据是否已发送完毕；
如果所述业务数据已发送完毕，则所述无线通信模块确定所述功率放大器的供电电压值为0V；
如果所述业务数据未发送完毕，则所述无线通信模块获取所述接收属性信息。
结合第一方面的第四种或第五种可能的实现方式，在第六种可能的实现 方式中，所述无线通信模块将所述功率放大器的供电电压值设置为0V之后还包括：
所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压值。
在第二方面，本发明实施例提供了一种降低功耗的装置，所述装置包括：
识别单元，用于当通信设备已开启无线保真Wi-Fi模式时，识别当前是否存在待发送的业务数据；
获取单元，用于如果当前存在所述业务数据，则获取所述装置的接收属性信息；
确定单元，用于利用所述接收属性信息，确定发送所述业务数据的发送速率；
所述确定单元，还用于根据所述发送速率，确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
在第一种可能的实现方式中，所述获取单元获取的所述接收属性信息具体包括：接收信号强度指示RSSI信息以及误包率PER信息；
所述确定单元具体用于，利用所述信号强度指示RSSI信息以及所述误包率PER信息，从存储的发送速率表中查找出与所述信号强度指示RSSI信息以及所述误包率PER信息相匹配的发送所述业务数据的发送速率。
在第二种可能的实现方式中，所述确定单元具体用于，
根据所述发送速率，获取所述发送速率对应的调制与编码策略MCS索引号；
根据所述调制与编码策略MAC索引号，获取所述调制与编码策略MAC索引号所属的速率分组类别；
利用所述速率分组类别，确定与所述速率分组类别匹配的所述功率放大器的供电电压值。
结合第二方面的第二种可能的实现方式，在第三种可能的实现方式中，所述装置还包括：
发送单元，用于向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配的供电电压值。
结合第二方面的第三种可能的实现方式，在第四种可能的实现方式中，所述确定单元还用于，
如果当前未存在所述业务数据，则确定所述功率放大器的供电电压值为0V。
结合第二方面的第三种可能的实现方式，在第五种可能的实现方式中，所述装置还包括：
判断单元，用于判断所述业务数据是否已发送完毕；
所述确定单元还用于，如果所述业务数据已发送完毕，则确定所述功率放大器的供电电压值为0V；
所述获取单元还用于，如果所述业务数据未发送完毕，则获取所述接收属性信息。
结合第二方面的第四种或第五种可能的实现方式，在第六种可能的实现方式中，所述发送单元还用于，
向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压值。
因此，通过应用本发明实施例提供的降低功耗的方法与装置，无线通信模块根据获取的接收属性信息，确定发送待发送的业务数据的发送速率，并根据发送速率确定与自身连接的功率放大器的供电电压值，以使得功率放大 器在确定的供电电压值下，对携带业务数据的业务请求信号进行放大处理，由于无线通信模块根据不同的发送速率，确定出功率放大器的供电电压值，进而根据不同的供电电压值为功率放大器确定不同位置的静态工作点，使得功率放大器在使能期，根据不同的发送速率，调整功耗，进而实现了降低功率放大的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
附图说明
图1为现有技术中实现Wi-Fi功能的硬件电路框图；
图2为本发明实施例一提供的降低功耗的方法流程图；
图3为本发明实施例提供的硬件电路框图；
图4为本发明实施例二提供的降低功耗的装置结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为便于对本发明实时的理解，下面将结合附图以具体实施例做进一步的解释说明，实施例并不构成对本发明实施例的限定。
实施例一
下面以图2为例详细说明本发明实施例一提供的降低功耗方法，图2为本发明实施例一提供的降低功耗的方法流程图，在本发明实施例中，执行下述步骤的实施主体为无线通信模块，所述无线通信模块可包括在通信设备中，所述通信设备可具体为移动终端、路由器等需要进行业务数据发送的设备。如图2所示，该实施例具体包括以下步骤：
步骤210、当通信设备已开启无线保真Wi-Fi模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据。
具体地，当通信设备已开启Wi-Fi模式时，通信设备包括的无线通信模块识别当前自身是否存在有待发送的业务数据。
所述待发送的业务数据具体包括由用户输入的数据或者由通信设备中处理器生成的数据。
进一步地，在执行步骤210之前，通信设备接收用户输入的操作指令，通信设备根据操作指令，开启Wi-Fi模式，从而进入Wi-Fi模式，当通信设备进入Wi-Fi模式时，无线通信模块触发自身开始识别当前是否存在待发送的业务数据。
在一个例子中，用户希望使用通信设备进行无线网络的连接，用户首先输入操作指令，通信设备根据操作指令开启Wi-Fi模式，无线通信模块识别当前是否存在待发送的业务数据。
在本发明实施例中，所述无线通信模块具体为Wi-Fi芯片。
步骤220、如果当前存在所述业务数据，则所述无线通信模块获取所述无线通信模块的接收属性信息。
具体地，根据步骤210的识别，如果当前存在待发送的业务数据，则无线通信模块获取自身的接收属性信息。
进一步地，所述如果当前存在所述业务数据，则所述无线通信模块获取所述无线通信模块的接收属性信息具体包括：
如果当前存在待发送的业务数据，则无线通信模块检测天线所接收的接收信号的相关属性,其中，所述天线在通信设备中，接收信号具体是指与通信设备进行数据通信的另一个Wi-Fi设备发送的。根据接收信号的属性,无线通信模块可以确定发送业务数据的发送速率。其中，作为示例而非限定，所述接收属性信息具体包括：接收信号强度指示(Received Signal Strength Indication，简称：RSSI)信息以及误包率(pairwise error probability)， 简称：PER)信息。
根据步骤210中的例子，用户再次输入用于无线网络连接的用户名及密码，无线通信模块识别到当前存在待发送的业务数据，则无线通信模块获取RSSI信息以及PER信息。
步骤230、利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率。
具体地，根据步骤220中获取的接收属性信息，无线通信模块确定出发送待发送的业务数据的发送速率。
进一步地，所述利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率具体包括：
利用RSSI信息以及PER信息，无线通信模块从存储的发送速率表中查找出与信号强度指示RSSI信息以及误包率PER信息相匹配的发送业务数据的发送速率。
所述发送速率表为各生产厂商在无线通信模块出厂前，生产厂商自行确定的，并且各生产厂商确定的发送速率表不相同。
需要说明的是，所述发送速率具体是指无线通信模块发送业务数据时，采用的物理层发送速率(PHY_RATE)。
在本发明实施例中，所述发送速率表存储在无线通信模块的存储单元中，为制造厂商在无线通信模块出厂前进行存储的，在发送速率表中，包括了多个RSSI信息以及PER信息对应的不同发送速率。
步骤240、根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
具体地，根据步骤230中确定出的发送速率，无线通信模块确定出与自身相连接的功率放大器的供电电压值，以使得功率放大器在该供电电压值下，对携带业务数据的业务请求信号进行放大处理。在本发明实施例中，由于无 线通信模块根据不同的发送速率，确定出功率放大器的供电电压值，并且根据不同的供电电压值为功率放大器确定不同位置的静态工作点，使得功率放大器在使能期，根据不同的发送速率，调整功耗，进而实现了降低功率放大的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
进一步地，所述根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值具体包括：
根据所述发送速率，所述无线通信模块获取所述发送速率对应的调制与编码策略MCS索引号。如表1所示，表1为MCS与发送速率对应表；
表1 MCS与发送速率对应表
Figure PCTCN2014095754-appb-000001
在表1中，每一个调制与编码策略(Modulation and Coding Scheme，简称：MCS)索引号均对应了一组RSSI信息以及PER信息对应的发送速率，也即是，多个发送速率对应1个MCS索引号。
其中，表1中，GI为保护间隔(Guard Interval)为了保证数据传输的 可靠性，无线通信模块在发送业务数据时，相邻发送的业务数据之间会设置有保护间隔，即GI，用以保证接收方能够正确的解析出各个业务数据；ns为纳秒。
表1中，BPSK为移相键控(Binary Phase Shift Keying，简称：BPSK)。是一种利用偏离相位的复数波浪组合来表现信息键控移相的方式。BPSK使用了基准的正弦波和相位反转的波浪，使一方为0，另一方为1，从而可以同时发送接收1比特的信息。
QPSK为正交相移键控(Quadrature Phase Shift Keying，简称：QPSK)，或四相移键控；是利用载波的四种不同相位差来表征输入的数字信息。QPSK中每次调制可传输2个比特的信息，这些信息是通过载波的四种相位来传递的。
QAM为正交幅度调制(Quadrature Amplitude Modulation，简称：QAM)；是用两路独立的基带信号对两个相互正交的同频载波进行抑制载波双边带调幅，利用这种已调信号的频谱在同一带宽内的正交性，实现两路并行的数字信息的传输。16-QAM是指包含16种符号的QAM调制方式；64-QAM是指包括64种符号的QAM调制方式；256QAM是指256种符号的QAM调制方式。
在获取与发送速率对应的MCS索引号后，根据该MCS索引号，无线通信模块获取该MCS索引号所属的速率分组类别n。如表2所示，表2为速率分组类别表。
表2速率分组类别表
Figure PCTCN2014095754-appb-000002
Figure PCTCN2014095754-appb-000003
在获取该MCS索引号所属的速率分组类别n后，利用速率分组类别n，无线通信模块确定与速率分组类别匹配的功率放大器的供电电压值VCC，以使得功率放大器在供电电压值下，对携带业务数据的业务请求信号进行放大处理。如表3所示，表3为供电电压表。
表3供电电压表
类别n 供电电压VCC
1 V1
2 V2
3 V3
4 V4
5 V5
在表3中，供电电压VCC包括的Vi电压值即为功率放大器的供电电压值。
在一个例子中，无线通信模块在步骤230中确定出发送待发送的业务数据的发送速率对应的MCS索引号为0号。则该MCS0索引号所属的速率分组类别n等于1，即第一类别，再根据第一类别对应的供电电压为V1，进而无线通信模块确定功率放大器的供电电压值为V1，以使得功率放大器在供电电压值为V1的情况下，对携带业务数据的业务请求信号进行放大处理。
可选地，在本发明实施例步骤240之后，还包括无线通信模块向直流-直 流转换器发送第一控制信号的步骤，通过该步骤，直流-直流转换器根据第一控制信号包括的第一供电信息，为功率放大器进行供电。具体步骤如下：
所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配的供电电压值。
具体地，无线通信模块确定出功率放大器的供电电压值后，无线通信模块生成第一控制信号，所述第一控制信号包括第一供电信息，即功率放大器的供电电压值，无线通信模块将向与自身连接的直流-直流转换器发送第一控制信号，以使的直流-直流转换器根据第一供电信息，为功率放大器提供匹配的供电电压值。
可选地，在本发明实施例步骤210的识别步骤中，还包括另一种实现情况，即如果当前未存在待发送的业务数据，则所述无线通信模块确定所述功率放大器的供电电压值为0V。
所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压值。
具体地，无线通信模块确定出功率放大器的供电电压值为0V后，无线通信模块生成第二控制信号，所述第二控制信号包括第二供电信息，即功率放大器的供电电压值为0V，无线通信模块将向与自身连接的直流-直流转换器发送第二控制信号，以使的直流-直流转换器根据第二供电信息，停止为功率放大器提供匹配的供电电压值，进而降低功率放大器的功耗，达到省电的目的。
可选地，在本发明实施例步骤240之后，还包括无线通信模块判断待发送的业务数据是否已发送完毕的步骤，根据发送的实际情况，确定功率放大器的供电电压值，降低功率放大器的功耗，达到省电的目的。具体步骤如下：
所述无线通信模块判断所述业务数据是否已发送完毕；
如果所述业务数据已发送完毕，则所述无线通信模块确定所述功率放大器的供电电压值为0V；
如果所述业务数据未发送完毕，则所述无线通信模块获取所述接收属性信息。
具体地，无线通信模块在确定功率放大器的供电电压值后，判断待发送的业务数据是否已发送完毕。
如果待发送的业务数据已发送完毕，则无线通信模块确定功率放大器的供电电压值为0V，并生成第二控制信号，所述第二控制信号包括第二供电信息，向直流-直流转换器发送第二控制信号，以使的直流-直流转换器根据第二供电信息，停止为功率放大器提供匹配的供电电压值，进而降低功率放大器的功耗，达到省电的目的。
如果待发送业务数据未发送完毕，则无线通信模块再次获取接收属性信息，重复执行步骤220至步骤240；根据当前获取的RSSI信息以及PER信息重新确定发送业务数据的发送速率，并调整功率放大器的供电电压值，进而降低功率放大器的功耗，达到省电的目的。
因此，通过应用本发明实施例提供的降低功耗的方法，无线通信模块根据获取的接收属性信息，确定发送待发送的业务数据的发送速率，并根据发送速率确定与自身连接的功率放大器的供电电压值，以使得功率放大器在确定的供电电压值下，对携带业务数据的业务请求信号进行放大处理，由于无线通信模块根据不同的发送速率，确定出功率放大器的供电电压值，进而根据不同的供电电压值为功率放大器确定不同位置的静态工作点，使得功率放大器在使能期，根据不同的发送速率，调整功耗，进而实现了降低功率放大的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
为便于对本发明实时的理解，下面将结合附图3对实施例一中降低功耗的方法进行具体描述。图3为本发明实施例提供的硬件电路框图。
在图3中，无线通信模块具体通过Wi-Fi芯片实现，Wi-Fi芯片分别与功 率放大器、直流-直流转换器连接，直流-直流转换器与功率放大器连接，为功率放大器提供供电电压，功率放大器与滤波器连接，滤波器与天线连接。
上述Wi-Fi芯片、功率放大器、直流-直流转换器、滤波器连接以及天线均处于通信设备中。工作过程如下：
当通信设备已开启Wi-Fi模式时，Wi-Fi芯片识别当前自身是否存在有待发送的业务数据，如果当前存在待发送的业务数据，则Wi-Fi芯片获取接收属性信息。
Wi-Fi芯片通过功率放大器、滤波器向天线发送检测信号，并接收天线反馈的反射信号；根据反射信号，Wi-Fi芯片获取接收属性信息，所述接收属性信息具体包括：RSSI信息以及PER信息。
Wi-Fi芯片确定出发送业务数据的发送速率。利用RSSI信息以及PER信息，Wi-Fi芯片从存储的发送速率表中查找出与RSSI信息以及PER信息相匹配的发送业务数据的发送速率(Wi-Fi芯片根据RSSI信息以及PER信息确定出发送业务数据的发送速率在前述实施例一中已详细描述，在此不再复述)。
根据确定出的发送速率，Wi-Fi芯片确定出功率放大器的供电电压值(Wi-Fi芯片根据发送速率确定出功率放大器的供电电压值在前述实施例一中已详细描述，在此不再复述)，并向直流-直流转换器发送第一控制信号，直流-直流转换器根据第一控制信号包括的第一供电信息，为功率放大器提供匹配的供电电压值，以使得功率放大器在该供电电压值下，对携带业务数据的业务请求信号进行放大处理。
在本发明实施例中，由于Wi-Fi芯片根据不同的发送速率，确定出功率放大器的供电电压值，并且根据不同的供电电压值为功率放大器确定不同位置的静态工作点，使得功率放大器在使能期，根据不同的发送速率，调整功耗，进而实现了降低功率放大的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
实施例二
相应地，本发明实施例二还提供了一种降低功耗的装置，用以实现前述实施例一中的降低功耗的方法，如图4所示，所述装置包括：识别单元410、获取单元420以及确定单元430。
所述装置中识别单元410，用于当通信设备已开启无线保真Wi-Fi模式时，识别当前是否存在待发送的业务数据；
获取单元420，用于如果当前存在所述业务数据，则获取所述装置的接收属性信息；
确定单元430，用于利用所述接收属性信息，确定发送所述业务数据的发送速率；
所述确定单元430，还用于根据所述发送速率，确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
所述获取单元420获取的所述接收属性信息具体包括：接收信号强度指示RSSI信息以及误包率PER信息；
所述确定单元430具体用于，利用所述信号强度指示RSSI信息以及所述误包率PER信息，从存储的发送速率表中查找出与所述信号强度指示RSSI信息以及所述误包率PER信息相匹配的发送所述业务数据的发送速率。
所述确定单元430具体用于，根据所述发送速率，获取所述发送速率对应的调制与编码策略MCS索引号；
根据所述调制与编码策略MAC索引号，获取所述调制与编码策略MAC索引号所属的速率分组类别；
利用所述速率分组类别，确定与所述速率分组类别匹配的所述功率放大器的供电电压值。
所述装置还包括：发送单元440，用于向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配 的供电电压值。
所述确定单元430还用于，如果当前未存在所述业务数据，则确定所述功率放大器的供电电压值为0V。
所述装置还包括：判断单元450，用于判断所述业务数据是否已发送完毕；
所述确定单元430还用于，如果所述业务数据已发送完毕，则确定所述功率放大器的供电电压值为0V；
所述获取单元420还用于，如果所述业务数据未发送完毕，则获取所述接收属性信息。
所述发送单元440还用于，向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压值。
因此，通过应用本发明实施例提供的降低功耗的装置，降低功耗的装置根据获取的接收属性信息，确定发送待发送的业务数据的发送速率，并根据发送速率确定与自身连接的功率放大器的供电电压值，以使得功率放大器在确定的供电电压值下，对携带业务数据的业务请求信号进行放大处理，由于降低功耗的装置根据不同的发送速率，确定出功率放大器的供电电压值，进而根据不同的供电电压值为功率放大器确定不同位置的静态工作点，使得功率放大器在使能期，根据不同的发送速率，调整功耗，进而实现了降低功率放大的功耗，同时，也降低通信设备中电池的耗电量，达到省电的目的。
专业人员应该还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为 超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (14)

  1. 一种降低功耗的方法，其特征在于，所述方法包括：
    当通信设备已开启无线保真Wi-Fi模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据；
    如果当前存在所述业务数据，则所述无线通信模块获取所述无线通信模块的接收属性信息；
    利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率；
    根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
  2. 根据权利要求1所述的降低功耗的方法，其特征在于，所述无线通信模块获取的所述接收属性信息具体包括：接收信号强度指示RSSI信息以及误包率PER信息；
    所述利用所述接收属性信息，所述无线通信模块确定发送所述业务数据的发送速率具体包括：
    利用所述信号强度指示RSSI信息以及所述误包率PER信息，所述无线通信模块从存储的发送速率表中查找出与所述信号强度指示RSSI信息以及所述误包率PER信息相匹配的发送所述业务数据的发送速率。
  3. 根据权利要求1所述的降低功耗的方法，其特征在于，所述根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值具体包括：
    根据所述发送速率，所述无线通信模块获取所述发送速率对应的调制与编码策略MCS索引号；
    根据所述调制与编码策略MAC索引号，所述无线通信模块获取所述调制与编码策略MAC索引号所属的速率分组类别；
    利用所述速率分组类别，所述无线通信模块确定与所述速率分组类别匹配的所述功率放大器的供电电压值。
  4. 根据权利要求3所述的降低功耗的方法，其特征在于，所述无线通信模块确定与所述速率分组类别匹配的所述功率放大器的供电电压值之后还包括：
    所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配的供电电压值。
  5. 根据权利要求1所述的降低功耗的方法，其特征在于，所述当通信设备已开启无线保真Wi-Fi模式时，所述通信设备包括的无线通信模块识别当前是否存在待发送的业务数据之后还包括：
    如果当前未存在所述业务数据，则所述无线通信模块确定所述功率放大器的供电电压值为0V。
  6. 根据权利要求1所述的降低功耗的方法，其特征在于，所述根据所述发送速率，所述无线通信模块确定与所述无线通信模块连接的功率放大器的供电电压值之后还包括：
    所述无线通信模块判断所述业务数据是否已发送完毕；
    如果所述业务数据已发送完毕，则所述无线通信模块确定所述功率放大器的供电电压值为0V；
    如果所述业务数据未发送完毕，则所述无线通信模块获取所述接收属性信息。
  7. 根据权利要求5或6所述的降低功耗的方法，其特征在于，所述无线通信模块将所述功率放大器的供电电压值设置为0V之后还包括：
    所述无线通信模块向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压 值。
  8. 一种降低功耗的装置，其特征在于，所述装置包括：
    识别单元，用于当通信设备已开启无线保真Wi-Fi模式时，识别当前是否存在待发送的业务数据；
    获取单元，用于如果当前存在所述业务数据，则获取所述装置的接收属性信息；
    确定单元，用于利用所述接收属性信息，确定发送所述业务数据的发送速率；
    所述确定单元，还用于根据所述发送速率，确定与所述无线通信模块连接的功率放大器的供电电压值，以使得所述功率放大器在所述供电电压值下，对携带所述业务数据的业务请求信号进行放大处理。
  9. 根据权利要求8所述的降低功耗的装置，其特征在于，所述获取单元获取的所述接收属性信息具体包括：接收信号强度指示RSSI信息以及误包率PER信息；
    所述确定单元具体用于，利用所述信号强度指示RSSI信息以及所述误包率PER信息，从存储的发送速率表中查找出与所述信号强度指示RSSI信息以及所述误包率PER信息相匹配的发送所述业务数据的发送速率。
  10. 根据权利要求8所述的降低功耗的装置，其特征在于，所述确定单元具体用于，
    根据所述发送速率，获取所述发送速率对应的调制与编码策略MCS索引号；
    根据所述调制与编码策略MAC索引号，获取所述调制与编码策略MAC索引号所属的速率分组类别；
    利用所述速率分组类别，确定与所述速率分组类别匹配的所述功率放大器的供电电压值。
  11. 根据权利要求10所述的降低功耗的装置，其特征在于，所述装置还 包括：
    发送单元，用于向与所述无线通信模块连接的直流-直流转换器发送第一控制信号，所述第一控制信号包括第一供电信息，以使得所述直流-直流转换器根据所述第一供电信息，为所述功率放大器提供匹配的供电电压值。
  12. 根据权利要求11所述的降低功耗的装置，其特征在于，所述确定单元还用于，
    如果当前未存在所述业务数据，则确定所述功率放大器的供电电压值为0V。
  13. 根据权利要求11所述的降低功耗的装置，其特征在于，所述装置还包括：
    判断单元，用于判断所述业务数据是否已发送完毕；
    所述确定单元还用于，如果所述业务数据已发送完毕，则确定所述功率放大器的供电电压值为0V；
    所述获取单元还用于，如果所述业务数据未发送完毕，则获取所述接收属性信息。
  14. 根据权利要求12或13所述的降低功耗的装置，其特征在于，所述发送单元还用于，
    向与所述无线通信模块连接的直流-直流转换器发送第二控制信号，所述第二控制信号包括第二供电信息，以使得所述直流-直流转换器根据所述第二供电信息，停止为所述功率放大器提供匹配的供电电压值。
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