WO2021135859A1 - 一种功耗控制方法、芯片系统及终端设备 - Google Patents

一种功耗控制方法、芯片系统及终端设备 Download PDF

Info

Publication number
WO2021135859A1
WO2021135859A1 PCT/CN2020/134564 CN2020134564W WO2021135859A1 WO 2021135859 A1 WO2021135859 A1 WO 2021135859A1 CN 2020134564 W CN2020134564 W CN 2020134564W WO 2021135859 A1 WO2021135859 A1 WO 2021135859A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal device
power consumption
low power
mode
modem
Prior art date
Application number
PCT/CN2020/134564
Other languages
English (en)
French (fr)
Inventor
鄂楠
薛剑韬
Original Assignee
荣耀终端有限公司
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 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to EP20908739.4A priority Critical patent/EP4044694B1/en
Priority to US17/774,819 priority patent/US20220408366A1/en
Publication of WO2021135859A1 publication Critical patent/WO2021135859A1/zh

Links

Images

Classifications

    • 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
    • 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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0258—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity controlling an operation mode according to history or models of usage information, e.g. activity schedule or time of day
    • 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
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • 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
    • H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission 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
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • 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
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • 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
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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

  • This application relates to the field of terminal technology, and in particular to a power consumption control method, chip system and terminal equipment.
  • terminal devices such as mobile phones, tablets, and wearable devices
  • terminal devices have gradually become indispensable tools in people's lives.
  • the standby time is a major factor in people's selection of terminal equipment. Therefore, how to extend the standby time is a major research direction of various manufacturers.
  • the embodiments of the present application provide a power consumption control method, a chip system, and a terminal device, which can reduce the power consumption of the terminal device and extend the standby time.
  • the present application provides a power consumption control method, the method includes: a terminal device detects the screen state and data flow of the terminal device; when the screen state is the off-screen state and the data flow is less than or equal to the expected When the flow threshold is set, the terminal device switches from the normal operating mode to the low power consumption mode; wherein, in the low power consumption mode, the terminal device does not receive downlink data, and the radio frequency path of the terminal device The current drops to a preset current, and the preset current is less than the current value of the radio frequency path in the normal operating mode.
  • the terminal device is switched from the normal working mode to the low power consumption mode when the terminal device is in the off-screen state and the data flow is less than or equal to the flow threshold, so that the radio frequency of the terminal device The current of the path drops to the preset current, thereby reducing the power consumption of the terminal equipment and extending the standby time.
  • the present application provides a terminal device.
  • the terminal device includes a processor, a memory is used to store instructions, and the processor is used to read and execute instructions in the memory so that the terminal device executes: detecting the The screen state and data flow of the terminal device; when the screen state is the screen off state and the data flow is less than or equal to the preset flow threshold, the terminal device switches from the normal working mode to the low power consumption mode; wherein, In the low power consumption mode, the terminal device does not receive downlink data, and the current of the radio frequency path of the terminal device drops to a preset current, which is less than the radio frequency path in the normal operating mode The current value under.
  • the terminal device when the screen is off and the data flow is less than or equal to the flow threshold, it can switch from the normal working mode to the low power consumption mode, so that the current of the radio frequency path of the terminal device can be reduced to the preset value. Current, thereby reducing the power consumption of the terminal equipment and extending the standby time.
  • the terminal device is switched from the normal operating mode to the low power consumption mode, when the terminal device detects that there is downlink data to be transmitted, the terminal device is The low power consumption mode is switched to the normal operation mode to complete the reception of the downlink data, and the normal operation mode is maintained for a preset time period.
  • the terminal device after the terminal device enters the low power consumption mode, it can switch back to the normal working mode in time based on the burst service, ensuring that the terminal device can also respond to the burst task in time after entering the low power consumption mode.
  • the terminal device switches from the normal working mode to the low power consumption mode
  • the terminal device detects that the subframe type of the current transmission time interval TTI is a preset subframe type
  • the terminal device changes from the low
  • the power consumption mode is switched to the normal working mode, and after the current TTI ends, the normal working mode is switched to the low power consumption mode.
  • the terminal device after entering the low-power mode, can switch back to the normal working mode based on the specified subframe type in time, ensuring that the terminal device can also respond to the specified subframe in time after entering the low-power mode task.
  • the terminal device performs radio frequency shutdown on the radio frequency path after completing the reception of the downlink control information DCI in each TTI, and the DCI is used to indicate whether there is Downlink data needs to be received.
  • the terminal device when the terminal device switches to the low power consumption mode, the terminal device switches the antenna diversity of the radio frequency path to the minimum antenna diversity; the terminal device switches from the normal operating mode to the low power consumption mode After the mode, when the terminal device detects that there is downlink data to be transmitted, the terminal device switches the antenna diversity of the radio frequency path to the maximum antenna diversity.
  • the terminal device can further reduce power consumption and extend the standby time.
  • the terminal device switches from the normal working mode to the low power consumption mode
  • the terminal device switches from the off-screen state to the on-screen state
  • the terminal device switches from the low power consumption mode to the normal working mode
  • the terminal device receives downlink data.
  • this application provides a chip system applied to a terminal device, including an application processor AP and a modem.
  • the AP detects the screen state of the terminal device; when the terminal device switches from the on-screen state to the off state In the screen state, the AP detects the data flow of the terminal device; when the data flow is less than or equal to the preset flow threshold, the AP sends first indication information to the Modem, the first indication information Used to instruct the Modem to switch to the low power consumption mode; after receiving the first indication information, the Modem switches from the normal operation mode to the low power consumption mode; wherein, in the low power consumption mode, The modem does not receive downlink data, and the current of the radio frequency path of the modem drops to a preset current, and the preset current is less than the current value of the radio frequency path in the normal operating mode.
  • the Modem performs radio frequency shutdown on the radio frequency path after completing the reception of the downlink control information DCI within each transmission time interval TTI, and the DCI is used to indicate Whether there is downlink data to be received.
  • the Modem After the Modem is switched from the normal operating mode to the low power consumption mode, if the Modem determines that the DCI received in the current TTI indicates that there is downlink data to be received, the Modem starts from the next Starting from one TTI, switching from the low power consumption mode to the normal operation mode to complete the reception of the downlink data, and maintain the normal operation mode for a preset time period.
  • the Modem switches from the normal operation mode to the low power consumption mode, if the Modem determines that the subframe type of the current TTI is a preset subframe type, the Modem switches from the low power mode The power consumption mode is switched to the normal working mode, and after the current TTI ends, the normal working mode is switched to the low power consumption mode.
  • the Modem switches the antenna diversity of the radio frequency path to the minimum antenna diversity; the Modem switches from the normal operation mode After switching to the low power consumption mode, when the Modem detects that there is downlink data to be transmitted, the Modem switches the antenna diversity of the radio frequency path to the maximum antenna diversity.
  • the AP when the AP detects that the terminal device is switched from the off-screen state to the on-screen state, the AP sends second indication information to the Modem, where the second indication information is used for Instruct the Modem to switch to the normal operation mode; after receiving the second instruction information, the Modem switches from the low power consumption mode to the normal operation mode.
  • the terminal device receives downlink data.
  • the present application provides a computer storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the terminal device as described in the second aspect or any optional manner of the second aspect is realized Function.
  • the embodiments of the present application provide a computer program product, the program product includes a program, and when the program is run, the terminal device described in the second aspect or any optional manner of the second aspect is Features.
  • FIG. 1 is a first flowchart of an embodiment of a power consumption control method provided by this application
  • FIG. 2 is a schematic diagram of a lock screen key provided by this application.
  • FIG. 3 is a schematic diagram of a radio frequency in a normal working mode provided by this application.
  • FIG. 4 is a schematic diagram 1 of a radio frequency in a low power consumption mode provided by this application.
  • FIG. 5 is a schematic diagram 2 of a radio frequency in a low power consumption mode provided by this application.
  • FIG. 6 is a second flowchart of an embodiment of a power consumption control method provided by this application.
  • FIG. 7 is a schematic diagram of a threshold of antenna diversity provided by this application.
  • FIG. 8 is a third flowchart of an embodiment of a power consumption control method provided by this application.
  • FIG. 9 is a schematic diagram of a chip system provided by this application.
  • FIG. 10 is a schematic diagram 1 of the work flow of a chip system provided by this application.
  • FIG. 11 is a second schematic diagram of the work flow of a chip system provided by this application.
  • FIG. 12 is a first schematic diagram of switching of a low power consumption mode provided by this application.
  • FIG. 13 is a second schematic diagram of switching of a low power consumption mode provided by this application.
  • FIG. 14 is a third schematic diagram of the working process of a chip system provided by this application.
  • FIG. 15 is a fourth schematic diagram of the working process of a chip system provided by this application.
  • FIG. 16 is a schematic structural diagram of a terminal device provided by this application.
  • a terminal device when a terminal device is in an off-screen state (generally referred to as a locked-screen state or a black-screen state), service transmission is not performed at least 98% of the time.
  • an off-screen state generally referred to as a locked-screen state or a black-screen state
  • service transmission is not performed at least 98% of the time.
  • the terminal device in order to ensure that the terminal device can receive burst business data in time, such as chat messages, emails, application notifications, etc., even when the screen is off, the terminal device is always ready to receive data. Therefore, a lot of unnecessary power consumption is caused, and the standby time of the terminal device is reduced.
  • this application provides a power consumption control method that can make the terminal device in the off-screen state, the current switched to the radio frequency path drops to a preset current range, and the terminal device does not receive downlink data in a low power consumption mode . In order to reduce the power loss of the terminal equipment in the off-screen state, thereby extending the standby time of the terminal equipment.
  • the power consumption control method provided in this application is applicable to terminal devices such as mobile phones, mobile computers, tablet computers, and wearable devices.
  • Support fourth generation (4G) access technology such as long term evolution (LTE) access technology, LTE evolution (LTE-Advanced, LTE-A) access technology; support fifth generation (fifth generation, LTE-A) access technology , 5G) access technology, such as new radio (NR) access technology; it can also support systems with multiple wireless technologies, such as systems that support LTE and NR dual connectivity. Of course, it can also support future-oriented communication technologies.
  • FIG. 1 is a flowchart of an embodiment of a power consumption control method provided by this application. As shown in Figure 2, the method includes:
  • the terminal device detects the screen status and data flow of the terminal device.
  • the terminal device when the terminal device determines to trigger the lock screen signal through a user operation in the on-screen state, the terminal device enters the locked and off-screen state. Therefore, the terminal device can determine the screen state based on the user operation. For example, when the terminal device detects the screen lock signal triggered by the user, it can determine that the screen is switched from the on-screen state to the off-screen state.
  • the lock screen signal may be triggered by the user pressing the lock screen key, and the lock screen key may be a virtual key or a physical key.
  • the virtual key may be an icon displayed on the screen of the terminal device.
  • a "one-key lock screen” icon is displayed on the screen of the terminal device.
  • the terminal device detects that the "one-key lock screen” icon is clicked, the terminal device can control the screen to switch from the on-screen state to the off-screen state.
  • the physical key can be a dedicated screen control key or a power key with screen control function.
  • a physical button is provided on the side of the screen of the terminal device. When the physical button is pressed, a screen-off signal is generated. When the terminal device detects the screen-off signal, the terminal device determines that the screen is switched from the on-screen state to the screen-off signal. The screen is off.
  • the power button of the terminal device is pressed for a long time (that is, it exceeds the preset first time period, such as 2s), the terminal device can be controlled to turn on, shut down, or restart. When the power button is clicked, you can control the screen to turn on or off.
  • the terminal device can also detect the lock screen time of the terminal device to determine the screen status.
  • the lock screen time can be understood as the time period during which the terminal device does not detect the user's operation.
  • the terminal device When the user operation is not detected within the predetermined lock screen time, the terminal device generally also automatically enters the state of the screen being locked and the screen is off.
  • the predetermined lock screen time can be set by the user.
  • the terminal device When the terminal device detects the data flow, it can perform data flow detection through the built-in flow detection application. Generally speaking, the traffic monitoring application will count all the applications installed in the terminal device and count the traffic of each application. It will also periodically add the data traffic generated by all applications during the period to obtain the terminal device traffic. Statistical data. Then, the terminal device can directly obtain the traffic statistics of the traffic monitoring application to determine the data traffic situation of the terminal device.
  • the terminal device may first detect the screen state, and start to detect the data flow when the screen state is switched from the on-screen state to the off-screen state.
  • the terminal device determines that the time when the screen switches from the on-screen state to the off-screen state is time 1, the terminal device can detect the data traffic in a specified time period (for example, 5s, 2s, etc.) with time 1 as the end time. It is also possible to detect the data flow in a specified time period starting from time 1 as the starting time. Of course, the terminal device can also detect the data traffic in a specified time period with time 1 as the intermediate time. In this regard, this application does not impose restrictions.
  • a specified time period for example, 5s, 2s, etc.
  • the terminal device may also detect whether the screen state is in the off-screen state when detecting that the data flow is less than or equal to a preset flow threshold.
  • the terminal device can also detect the data flow and the screen state at the same time, and determine the moment when the data flow is less than or equal to the preset flow threshold and the screen state is the screen off state.
  • the current of the radio frequency (RF) path of the terminal device can drop to a preset current, and the terminal device may not receive downlink data.
  • the preset current The range is smaller than the current of the radio frequency path in the normal operating mode (hereinafter referred to as the normal operating current).
  • Downlink data refers to the downlink data carried on the Physical Downlink Shared Channel (PDSCH).
  • the terminal device can switch between the normal working mode and the low power consumption mode by controlling the radio frequency path to turn on and off the radio frequency.
  • the so-called normal operating mode refers to that the radio frequency channel is turned on and off according to a conventional protocol (for example, the LTE protocol or the NR protocol). That is, the radio frequency channel of the terminal equipment will turn on the radio frequency in each transmission time interval (TTI), and monitor the downlink control information (Downlink Control Information, DCI) carried on the Physical Downlink Control Channel (PDCCH) ).
  • a conventional protocol for example, the LTE protocol or the NR protocol. That is, the radio frequency channel of the terminal equipment will turn on the radio frequency in each transmission time interval (TTI), and monitor the downlink control information (Downlink Control Information, DCI) carried on the Physical Downlink Control Channel (PDCCH) ).
  • DCI Downlink Control Information
  • DCI is a kind of control signaling sent by network equipment to terminal equipment, and DCI in different formats indicates different control information.
  • format 1 is used to indicate the resource scheduling information of PDSCH, including modulation and coding scheme (generally occupying 5 bits), hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) process number (generally occupying 4 bits), and new data indication (generally occupying 4 bits).
  • 1bit used to indicate whether there is downlink data to be transmitted
  • redundancy version generally occupying 2bit
  • PUCCH physical uplink control channel
  • transmission power control command generally occupying 2bit
  • downlink allocation index Generally occupy 2bit
  • a TTI includes 14 symbols, and the radio frequency path of the terminal device will receive the DCI at the first, second, or third symbol in the TTI.
  • the radio frequency channel completes the reception of DCI within the 2nd or 3rd symbol.
  • the radio frequency path completes the reception of DCI within the first or second symbol.
  • the terminal device keeps the radio frequency of the radio frequency channel turned on and performs DCI analysis. Then, it is determined whether the downlink data needs to be transmitted according to the analysis result of the DCI.
  • the terminal device If there is downlink data to be transmitted, the terminal device continues to turn on the radio frequency of the radio frequency path, and receives the downlink data on the corresponding PDSCH according to the resource scheduling information and transmission format and other control information parsed from the DCI. That is to say, in the case of data transmission, the radio frequency channel is in a radio-on state throughout the TTI.
  • the terminal equipment turns off the radio frequency of the radio frequency channel at the 10th to 14th symbols or at the 11th to 14th symbols. After the radio frequency is turned off, the radio frequency channel cannot receive any data.
  • the radio frequency path completes the reception of DCI in the third symbol, and then the terminal equipment analyzes the DCI to determine whether there is downlink data to be transmitted. If there is data transmission, as shown in Figure 3(a), the radio frequency path is in the radio-on state throughout the TTI. If there is no downlink data, the terminal device turns off the radio frequency of the radio frequency channel at the 11th to 14th symbols until entering the next TTI, restarts the radio frequency and continues to monitor the PDCCH. That is, as shown in Figure 3(b), in the first 10 symbols of the TTI, the radio frequency channel is in the radio-on state, and in the last 4 symbols of the TTI, the radio frequency channel is in the radio-frequency off state.
  • the radio frequency channel has 64.2% (i.e. 9/14) of the time, or 71.4% (i.e. 10/14) of the time in the radio frequency.
  • the normal working current of the radio frequency path is A
  • the normal working current of the radio frequency path is 64.2%*A or 71.4%*A.
  • the so-called low power consumption mode refers to a mode in which the terminal device can perform radio frequency shutdown on the radio frequency channel after completing the reception of the downlink control information DCI in each TTI.
  • the terminal device does not need to wait for the completion of the DCI analysis, and can turn off the radio frequency of the radio frequency path before the completion of the DCI analysis.
  • the terminal device may immediately turn off the radio frequency of the radio frequency channel after receiving the DCI, that is, turn off the radio frequency from the first symbol after receiving the DCI.
  • the radio frequency path completes the DCI reception at the second symbol of the TTI, then, as shown in Figure 4(a), starting from the third symbol, the radio frequency path is 12 (14-2) after the TTI. )
  • the radio frequency is turned off within the symbols, and the downlink data cannot be received. That is, 14.2% (ie, 2/14) of the radio frequency channel is in radio frequency to monitor the DCI carried on the PDCCH.
  • the current of the radio frequency path drops from 64.2%*A to 14.2%*A when there is no downlink data to be transmitted.
  • the radio frequency path completes DCI reception in the third symbol of TTI, then, as shown in Figure 4(b), starting from the fourth symbol, the radio frequency path is in radio frequency within the last 11 (14-3) symbols of TTI.
  • downlink data cannot be received. That is, 21.4% (ie, 3/14) of the radio frequency channel is in radio frequency to monitor the DCI carried on the PDCCH.
  • the current of the radio frequency path drops from 71.4%*A to 21.4%*A when there is no downlink data to be transmitted.
  • the radio frequency path completes the DCI reception at the first symbol of the TTI, then, as shown in Figure 4(c), starting from the second symbol, the radio frequency path is 13(14- 1)
  • the radio frequency is turned off within one symbol, and the downlink data cannot be received. That is, 7.1% (ie 1/14) of the radio frequency channel is in radio frequency to monitor the DCI carried on the PDCCH.
  • the current of the radio frequency path drops from 64.2%*A to 7.1%*A when there is no downlink data to be transmitted.
  • the radio frequency path completes DCI reception in the second symbol of TTI, then, as shown in Figure 4(a), starting from the third symbol, the radio frequency path is in radio frequency within the last 12 (14-2) symbols of TTI.
  • downlink data cannot be received. That is, 14.2% (ie, 2/14) of the radio frequency channel is in radio frequency to monitor the DCI carried on the PDCCH.
  • the current of the radio frequency path drops from 71.4%*A to 14.2%*A when there is no downlink data to be transmitted.
  • the terminal device may also turn off the radio frequency from the designated symbol position after receiving the DCI on the radio frequency path.
  • the designated symbol position is located at any symbol position before the 9th symbol after receiving the DCI.
  • the terminal device when a normal cyclic prefix (NCP) is used between symbols, as shown in Figure 5(a), after receiving DCI in the radio channel, the terminal device can start from the fifth symbol Turn off the radio frequency of the radio frequency path.
  • NCP normal cyclic prefix
  • the current of the radio frequency path drops from 64.2%*A to 28.6%*A, or from 71.4%*A to 28.6%*A when there is no downlink data to be transmitted.
  • the terminal device can turn off the radio frequency of the radio frequency path starting from the fourth symbol.
  • ECP extended cyclic prefix
  • the terminal device when the terminal device switches from the normal working mode to the low power consumption mode, compared with the normal working mode, the current of the radio frequency path of the terminal device has a greater degree of decrease, for example, a decrease of 20%. %the above. Therefore, after switching to the low power consumption mode, the terminal device can save more than 20% of the power consumption, thereby extending the standby time.
  • this application also provides an escape mechanism. That is, when the terminal device detects that there is downlink data to be transmitted, the terminal device switches from the low power consumption mode to the normal working mode to complete the reception of the downlink data, and maintains the normal working mode for a preset time period.
  • the terminal device After the terminal device switches to the low power consumption mode, it will still receive DCI in each TTI. If in a certain TTI (for example, TTI1), after the terminal device completes the DCI analysis and finds that there is downlink data to be transmitted, the terminal device can start the escape timer and start from the next TTI of TTI1 (for example, TTI2), Switch back to normal working mode. Before the escape timer expires, the terminal device is always maintained in the normal working mode.
  • TTI1 for example, TTI2
  • the network-side device For a network device that sends downlink data to a terminal device, when the network device detects that the terminal device does not correctly receive the downlink data in TTI1, the network-side device will start the retransmission mechanism and resend the downlink data in TTI2. In TTI2, the terminal device has switched back to the normal working mode, so the terminal device can receive the downlink data normally.
  • the escape mechanism for the low power consumption mode provided in this application can ensure the transmission of downlink data without affecting the user experience.
  • the terminal device needs to perform a specified task in a specified type of subframe.
  • terminal equipment performs EMU measurement tasks in EMU measurement task subframes; performs cell search tasks in cell search task subframes; performs paging tasks in paging subframes; performs paging tasks in system information demodulation task subframes
  • Perform system information demodulation for example, demodulate master information block (Master Information Block, MIB) or system information block (System Information Blocks, SIB); perform channel state information reference signal (Channel State Information- Reference Signals, CSI-RS) pilot configuration, etc.
  • MIB Master Information Block
  • SIB System Information Blocks
  • CSI-RS Channel State Information- Reference Signals
  • the terminal equipment needs the radio frequency channel to maintain the radio frequency open state in order to successfully perform the corresponding task. Therefore, the generation mechanism provided in this application may also include the detection of specified types of subframes.
  • a subframe set is preset in the terminal device, and the subframe set includes multiple preset subframe types. For example, EMU measurement task subframe, cell search task subframe, paging subframe, system information demodulation task subframe, pilot configuration subframe and other subframe types.
  • the subframe set may also include other subframe types that need to maintain a radio frequency state, which can be specifically set based on actual requirements, and this application does not limit it.
  • the terminal device determines whether the subframe type of the current TTI belongs to the subframe set. If the subframe type of the current TTI is a preset subframe type in the subframe set, the terminal device switches from the low power consumption mode to the normal working mode, so as to perform tasks corresponding to the preset subframe type. After the current TTI is received, the terminal device switches from the normal working mode to the low power consumption mode.
  • the working process of the terminal device includes:
  • the terminal device is in a low power consumption mode.
  • S602 The terminal device detects whether the subframe type in the current TTI belongs to the subframe set.
  • the terminal device when the terminal device enters the network, it will receive the subframe ratio information issued by the network device, and the subframe ratio information includes the position of some subframe types, such as the position of the pilot configuration subframe. Therefore, the terminal device can determine the subframe type in the current TTI according to the subframe ratio information.
  • the network device when the network device instructs some subframe tasks, it will send control information through the Physical Broadcast Channel (PBCH). Then, when the terminal device receives the control information on the PBCH, it can be based on the control information. Determine the subframe type in the current TTI.
  • PBCH Physical Broadcast Channel
  • S603 may be performed. If the terminal device determines that the subframe type in the current TTI does not belong to the subframe set, S604 may be performed.
  • S603 The terminal device switches from the low power consumption mode back to the normal working mode.
  • the terminal device switches back to the normal mode, when entering the next TTI, it can continue to detect the subframe type in the next TTI. If the subframe type in the next TTI does not belong to the subframe set, the terminal device can switch back to the low power consumption mode again, otherwise it still maintains the normal working mode.
  • the terminal device parses the DCI and determines whether there is downlink data.
  • the terminal device can maintain the low power consumption mode, and return to S602 to start the next round of detection. If there is downlink data to be transmitted, the terminal device can perform S605.
  • S605 Start the escape timer, and switch from the low power consumption mode back to the normal working mode.
  • the terminal device When detecting that there is downlink data to be transmitted, the terminal device can switch from the low power consumption mode back to the normal working mode to receive the downlink data. At the same time, the terminal device starts the escape timer timing, and during the timing period of the escape timer, the terminal device maintains a normal working mode.
  • the terminal device can switch to the low power consumption mode again, and start the next round of detection from S601.
  • the terminal device can further reduce power consumption by reducing the antenna diversity of the radio frequency path. That is, when the terminal device switches to the low power consumption mode, the terminal device switches the antenna diversity of the radio frequency path to the minimum antenna diversity.
  • the radio frequency path of the terminal device supports three antenna diversity, which are 4Rx (4 receiving antennas), 2Rx (2 receiving antennas), and 1Rx (1) receiving antennas.
  • the terminal device can directly switch the current antenna diversity to the minimum antenna diversity 1RX. If the current antenna diversity is 4Rx, after the terminal device switches 4Rx to 1Rx, the power consumption can be reduced by 60% on the basis of turning off the radio frequency described above. If the current antenna diversity is 2Rx, after the terminal device switches 2Rx to 1Rx, the power consumption can be reduced by 30% on the basis of turning off the radio frequency described above.
  • the terminal device can keep the current antenna diversity unchanged when determining to switch to the low power consumption mode.
  • the terminal device After the terminal device switches from the normal working mode to the low power consumption mode, the terminal device can always control the antenna diversity of the radio frequency path to the minimum antenna diversity without detecting that there is downlink data to be transmitted.
  • the terminal equipment can also adjust the size of the antenna diversity by detecting the signal quality. For example, it is possible to detect signal strength indication (Received Signal Strength Indication, RSSI), signal-to-noise ratio (signal noise ratio, SNR) signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), etc.
  • RSSI Received Signal Strength Indication
  • SNR signal-to-noise ratio
  • SINR Signal to Interference plus Noise Ratio
  • the three antenna diversity 4Rx, 2Rx, and 1Rx supported by the terminal device are respectively set with a corresponding SINR threshold, which is threshold 1, threshold 2, and threshold 3.
  • the SINR threshold may be configured by the network side device to the terminal device, or may be pre-configured. When the terminal device is in the low power consumption mode, the terminal device can periodically detect the SINR.
  • the terminal device detects that the SINR is less than the threshold 2 and greater than the threshold 1, then 1Rx is switched to 2Rx; if the SINR is detected to be less than the threshold 1, then 1Rx is switched to 4Rx; if the SINR is detected to be greater than the threshold 2 , Then maintain 1Rx unchanged.
  • the terminal device detects that the SINR is less than the threshold 3 and greater than the threshold 2, 4Rx is switched to 2Rx; if the SINR is detected to be greater than the threshold 3, 4Rx is switched to 1Rx; if the SINR is detected to be less than the threshold 2 , Keep 4Rx unchanged.
  • the terminal device detects that the SINR is less than the threshold 1, then 2Rx is switched to 4Rx; if the SINR is detected to be greater than the threshold 3, then 2Rx is switched to 1Rx; if the SINR is detected to be greater than the threshold 1 and less than the threshold 3. , Then maintain 2Rx unchanged.
  • the setting of the SINR threshold and the switching rule based on the SINR threshold can be set based on actual application requirements, which is not limited in this application.
  • the terminal device When the terminal device detects that there is downlink data to be transmitted, the terminal device can directly switch the antenna diversity of the radio frequency path to the maximum antenna diversity.
  • Fig. 8 is a flowchart of an embodiment of another power control method provided by an embodiment of this application. The method includes:
  • S801 The terminal device detects that the screen state is a bright screen state. The next step is to execute S802.
  • the terminal device may detect the screen lock key of the terminal device when the screen is off. For example, when the terminal device detects that the physical button is pressed in the off-screen state, it can control the screen of the terminal device to switch from the off-screen state to the on-screen state.
  • the terminal device if the terminal device turns on the bright screen reminder function for a specified application (such as a social application), that is, when a chat message is received, the terminal device automatically turns on the bright screen state and displays the chat message on the screen. Then, when the terminal device detects the data of the specified application in the off-screen state, it can switch from the off-screen state to the on-screen state.
  • a specified application such as a social application
  • the terminal device when the terminal device is in the on-screen state and it is found that the terminal device is still in the low power consumption mode, the terminal device can exit the low power consumption mode and switch from the low power consumption mode to the normal working mode.
  • the terminal device can switch between the normal working mode and the low power consumption mode based on different screen states and different data transmission states.
  • the terminal device switches to a low power consumption mode to reduce the power consumption of the terminal device, thereby prolonging the standby time of the terminal device.
  • the following introduces a chip system that can implement the above-mentioned power control method provided by the present application, as shown in FIG. 9, including AP and Modem.
  • the AP can include a central processing unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), and a ready-made programmable gate array (Field-Programmable Gate Array).
  • Array FPGA
  • FPGA field-Programmable Gate Array
  • the AP is used to execute various functional applications and data processing of the terminal device, thereby controlling the operation of the terminal device's operating system, user interface, and application programs.
  • Modem can also be called baseband processor (Baseband Processor, BP), which is used to control the radio frequency path of the terminal device to perform operations such as data transmission and reception and signal modulation to realize the radio frequency communication function of the terminal device.
  • Baseband Processor Baseband Processor
  • the AP can control the Modem to switch between the normal working mode and the low power consumption mode according to the screen state and data flow of the terminal device, so as to implement the above-mentioned power control method.
  • Fig. 10 is a flowchart of an embodiment in which the AP controls the Modem to switch to the low power consumption mode, including:
  • the AP detects the screen status of the terminal device.
  • the AP can detect the screen status by detecting a signal triggered by the lock screen key. For example, when the AP detects that the virtual button of the lock screen key displayed on the screen of the terminal device is clicked, the AP determines that the terminal device switches from the on-screen state to the off-screen state.
  • the physical button of the lock screen key (for example, a dedicated lock screen key or a power key with lock screen function) is pressed to generate an off-screen signal.
  • the AP detects the off-screen signal, it determines that the terminal device switches from the on-screen state to The screen is off.
  • the AP can also detect the lock screen time of the terminal device. When the screen lock time of the terminal device is up, the AP can determine that the screen is switched from the on-screen state to the off-screen state.
  • the AP When the AP determines that the terminal device switches from the on-screen state to the off-screen state, the AP starts to detect data traffic. For example, if a flow monitoring application is installed in the terminal device, the AP can directly obtain the monitoring data of the flow monitoring application. Alternatively, the AP can also obtain statistical information about the data traffic transmitted by the modem on the radio frequency path, and modern can perform traffic statistics based on the size of the uplink and downlink data packets.
  • the AP can detect data traffic in a specified time period (for example, 5s, 2s, etc.) with time 1 as the end time. It is also possible to detect the data flow in a specified time period starting from time 1 as the starting time. Of course, the AP can also detect the data traffic in a specified time period with time 1 as the intermediate time. In this regard, this application does not impose restrictions.
  • the AP When the data flow is less than or equal to the preset flow threshold, the AP sends first indication information to the Modem, where the first indication information is used to instruct the Modem to switch to a low power consumption mode.
  • the Modem After receiving the first indication information, the Modem switches from the normal operation mode to the low power consumption mode.
  • the Modem in the low power consumption mode, does not receive downlink data, and the current of the Modem's radio frequency path drops to a preset current.
  • the low power consumption mode for the specific implementation of the low power consumption mode, reference may be made to the related description in the foregoing step S102, and details are not described herein again.
  • the AP may further confirm the working mode of the Modem after detecting a change in the screen state of the terminal device.
  • status record information can be set in AP and Modem.
  • the status record information in the AP is used to record whether the mode switch indication information sent by the AP last time is the first indication information or the second indication information. If the first indication information is recorded in the status record information, it means that the first indication information was sent last time, and the AP can determine that the current Modem is in the low power consumption mode. If the second indication information is recorded in the status record information, it means that the second indication information was sent last time, and the AP can determine that the current Modem is in the normal working mode. Each time the AP sends the mode switching instruction information, the status record information will be updated at the same time. Wherein, the second indication information is used to instruct the Modem to switch to the normal working mode.
  • the status record information in the Modem is used to record the current working mode of the Modem.
  • the Modem receives the first indication information, it updates the status record information to the first indication information, and switches to the low power consumption mode.
  • the Modem receives the second indication information, it updates the status record information to the second indication information and switches to the normal operation mode.
  • the mode switching indication information may be a flag bit.
  • the flag When the flag is assigned a value of "true”, it represents the first indication information, and when the flag is assigned a value of "false", it represents the second indication information.
  • the process for the AP to send the first indication information may also be as shown in FIG. 11, including:
  • S1101 The AP detects that the terminal device is switched from the on-screen state to the off-screen state.
  • S1102 The AP determines whether the Modem is currently in a low power consumption mode.
  • the AP after the AP detects that the terminal device is switched from the on-screen state to the off-screen state, it can first determine whether the Modem is currently in the low-power consumption mode based on the status record information. When the Modem is currently in the normal working mode, that is, when it detects that the flag is assigned "false", it will further detect the data flow of the terminal device.
  • the AP If the Modem is currently in the normal working mode, the AP returns to execute S1102 after delaying the preset time period to re-determine whether the Modem is in the low power consumption mode. If the Modem is currently in the low power consumption mode, the AP executes S1103.
  • S1103 The AP determines whether the data flow of the terminal device is less than or equal to a flow threshold.
  • the AP may perform S1104. If the data flow of the terminal device is greater than the flow threshold, the AP may return to execute S1102 after a delay of a preset period of time.
  • the AP sends first indication information to the Modem.
  • the AP when the AP sends the first indication information to the Modem, it may be sent through shared memory. That is, the AP stores the first indication information in the shared memory of the terminal device, and the Modem can obtain the first indication information from the shared memory.
  • the Modem after receiving the first indication information, the Modem can directly switch to the low power consumption mode. For example, as shown in FIG. 12, assuming that the Modem receives the first indication information sent by the AP at TTI2, the Modem switches to the low power consumption mode starting from the first TTI (assuming TTI3) after TTI2.
  • the Modem may also perform data detection first to determine the handover timing. Then switch to the low power consumption mode after determining the switching timing.
  • the modem may first detect whether there is at least one DCI in the sliding decision window indicating that there is downlink data to be transmitted. If there is no DCI in the sliding decision window indicating that there is downlink data transmission, the Modem will switch to the low power consumption mode starting from the TTI corresponding to the sliding decision window.
  • the sliding decision window of a TTI refers to a time period formed by consecutive M (M ⁇ 0) TTIs before the TTI.
  • TTI0-TTI10 are consecutive 11 TTIs.
  • TTI0-TTI2 are the sliding decision windows of TTI3
  • TTI1-TTI3 are the sliding decision windows of TTI4
  • TTI2-TTI4 are the sliding decision windows of TTI5
  • TTI7-TTI9 are the sliding decision windows of TTI10.
  • the modem receives the first indication information sent by the AP at TTI2, the modem starts data detection from the first TTI after TTI2, that is, TTI3, and determines the TTI for performing mode switching. That is, the Modem first determines whether there is at least one DCI in the 3 DCIs received in the sliding decision window TTI0-TTI2 of TTI3 indicating that there is downlink data transmission. If no DCI indicates that there is downlink data transmission, the Modem can determine that the TTI for mode switching is TTI3. Modem switches to low power consumption mode in accordance with TTI3.
  • the modem continues to detect whether TTI4 is the TTI for performing mode switching. That is, the Modem determines whether there is at least one DCI in the three DCIs received in the sliding decision window TTI1-TTI3 of TTI4, indicating that there is downlink data transmission. If no DCI indicates that there is downlink data transmission, the Modem can determine that the TTI for performing mode switching is TTI4. Modem switches to low power consumption mode starting from TTI4.
  • the modem continues to detect whether TTI5 is a TTI for performing mode switching. The analogy is repeated until the TTI for performing the mode switching is determined, and the low power consumption mode is switched from this TTI.
  • the Modem After the Modem receives the first indication information, by performing data detection in the sliding decision window, it can further ensure that when switching to the low-power mode, no downlink data needs to be transmitted, thereby avoiding the low-power mode from affecting the terminal during the switching process. The influence of the device's downlink data transmission.
  • the terminal device may receive burst services at any time and needs to receive downlink data.
  • the modem After the modem receives the DCI, it turns off the radio frequency of the radio frequency path without completing the analysis of the DCI. Therefore, when the modem completes the analysis of the DCI and finds that there is downlink data to be transmitted, the modem cannot control the radio frequency path to receive the downlink data on the designated PDSCH.
  • the chip system provided in this application is also provided with an escape mechanism. That is, when the Modem detects that there is downlink data to be transmitted, the Modem switches from the low power consumption mode to the normal working mode to complete the reception of the downlink data, and maintains the normal working mode for a preset period of time.
  • the modem when the modem is in the low power consumption mode, the modem will analyze the DCI in a state where the radio frequency is turned off after receiving the DCI in each TTI. If in the current TTI, the modem determines that there is downlink data transmission through the analysis of the DCI, the modem can start the escape mechanism. That is, the Modem starts the escape timer and switches back to the normal working mode from the next TTI, so as to receive the downlink data indicated by the DCI. The Modem maintains the normal working mode before the escape timer expires.
  • the Modem monitors the PDCCH in a low power consumption mode, and turns off the radio frequency after receiving DCI11.
  • the modem determines that there is downlink data transmission by analyzing the DCI11, and the modem immediately starts the escape timer and switches back to the normal working mode from the next TTI (assuming TTI12) to facilitate receiving the downlink data indicated by the DCI11.
  • the Modem maintains the normal working mode in the 20 TTIs of TTI12-TTI32 after the escape timer is turned on.
  • the network-side device For a network device that transmits downlink data to a terminal device, when the network device detects that the terminal device does not correctly receive the downlink data in TTI11, the network-side device will start the retransmission mechanism and resend the downlink data in TTI12. Since the terminal device is in the off-screen state and the reconstruction interval is only one TTI, it is difficult for a user using the terminal device to perceive that the downlink data has been retransmitted. Therefore, the escape mechanism of the chip system provided by the present application does not affect the user experience of the user while guaranteeing the downlink data transmission.
  • the AP does not send the second indication information
  • the first indication information is still recorded in the status record information of the Modem. Then, when the escape timer expires, the Modem automatically switches back to the low power consumption mode based on the first indication information recorded in the status record information.
  • the modem updates the status record information according to the second indication information.
  • the Modem maintains the normal working mode based on the second indication information recorded in the status record information.
  • the terminal device needs to perform a specified task in a specified type of subframe.
  • terminal equipment performs EMU measurement tasks in EMU measurement task subframes; performs cell search tasks in cell search task subframes; performs paging tasks in paging subframes; performs system information in system information demodulation task subframes Demodulate, for example, demodulate MIB or SIB; perform CSI-RS pilot configuration in the pilot configuration subframe, etc.
  • the Modem needs to maintain the radio frequency state to perform the corresponding tasks smoothly. Therefore, the escape mechanism set in the chip system provided in this application may also include the detection of a specified type of subframe.
  • a subframe set is preset in the modem, and the subframe set includes multiple preset subframe types.
  • EMU measurement task subframe For example, EMU measurement task subframe, cell search task subframe, paging subframe, system information demodulation task subframe, pilot configuration subframe and other subframe types.
  • the subframe set may also include other subframe types that need to maintain a radio frequency state, which can be specifically set based on actual requirements, and this application does not limit it.
  • the Modem When the Modem is in the low power consumption mode, it determines whether the subframe type of the TTI belongs to the subframe set in each TTI. If the subframe type of the TTI is a subframe type in the subframe set, the Modem switches to the journey working mode in the TTI so as to perform tasks corresponding to the preset subframe type. And after the TTI is received, the Modem switches from the normal working mode to the low power consumption mode.
  • the workflow of Modem includes:
  • S1401 The Modem detects whether the first indication information is recorded in the status record information.
  • the Modem may execute S1402.
  • the modem detects that the second indication information is recorded in the status record information
  • the modem can execute S1408.
  • the modem switches to low power consumption mode.
  • S1403 The modem detects whether the subframe type in the current TTI belongs to the subframe set.
  • S1404 may be performed. If the Modem determines that the subframe type in the current TTI does not belong to the subframe set, S1405 may be performed.
  • the Modem switches back to the normal mode, when entering the next TTI, it can continue to detect the subframe type in the next TTI. If the subframe type in the next TTI does not belong to the subframe set, the terminal device can switch back to the low power consumption mode again, that is, return to execute S1402, otherwise the normal operation mode is still maintained.
  • S1405 The modem parses the DCI and determines whether there is downlink data.
  • the Modem can maintain the low power consumption mode and return to S1041 to start the next round of detection. If there is downlink data to be transmitted, the terminal device can perform S1406.
  • the Modem When it is detected that there is downlink data to be transmitted, the Modem can switch from the low power consumption mode back to the normal working mode to receive the downlink data. At the same time, the Modem starts the escape timer timing, and the Modem maintains the normal working mode during the time period of the escape timer.
  • the Modem determines that the escape timer has expired, the Modem can return to execute S1041 for the next round of detection.
  • the Modem after the Modem enters the low power consumption mode, it can switch back to the normal working mode in time based on the burst service and the specified subframe type. Even after the radio frequency channel enters the low power consumption mode, it can respond to burst tasks and designated subframe tasks in time.
  • the Modem can further reduce power consumption by reducing the antenna diversity of the radio frequency path. That is, when the Modem switches to the low power consumption mode, the Modem switches the antenna diversity of the radio frequency path to the minimum antenna diversity.
  • the radio frequency path supports three antenna diversity, which are 4Rx (4 receiving antennas), 2Rx (2 receiving antennas), and 1Rx (1) receiving antennas.
  • the Modem can directly switch the current antenna diversity to the minimum antenna diversity 1RX. If the current antenna diversity is 4Rx, after the Modem switches 4Rx to 1Rx, the power consumption can be reduced by 60% on the basis of turning off the radio frequency described above. If the current antenna diversity is 2Rx, after the Modem switches 2Rx to 1Rx, the power consumption can be reduced by 30% on the basis of turning off the radio frequency described above.
  • the Modem can keep the current antenna diversity unchanged when determining to switch to the low power consumption mode.
  • the Modem After the Modem switches from the normal working mode to the low power consumption mode, the Modem can always control the antenna diversity of the radio frequency path to the minimum antenna diversity without detecting that there is downlink data to be transmitted.
  • the modem can also adjust the size of the antenna diversity in real time according to the Signal to Interference plus Noise Ratio (SINR).
  • SINR Signal to Interference plus Noise Ratio
  • the manner in which the Modem adjusts the size of the antenna diversity in real time according to the SINR can refer to the description in the example shown in FIG. 7, which will not be repeated here.
  • the Modem When the Modem detects that there is downlink data to be transmitted, the Modem can directly switch the antenna diversity of the radio frequency path to the maximum antenna diversity.
  • the foregoing embodiments mainly describe the work flow of the AP controlling the Modem to switch to the low power consumption mode and the Modem in the low power consumption mode.
  • the following is an exemplary description of the process of AP controlling and controlling the Modem to switch to the normal working mode.
  • a possible implementation manner is that when the AP detects that the terminal device is switched from the off-screen state to the on-screen state, the AP can send second indication information to the Modem to instruct the Modem to switch to the normal working mode.
  • the AP when the terminal device switches from the off-screen state to the on-screen state, the AP sends second indication information when determining that the Modem is in the low-power mode, and controls the Modem to switch from the low-power mode to Normal working mode.
  • the process for the AP to send the second indication information may be as shown in FIG. 15, including:
  • S1501 The AP detects that the AP switches from the off-screen state to the on-screen state.
  • the AP can detect the screen lock button of the AP when the screen is off. For example, when the AP detects that the physical button is pressed in the off-screen state, it can control the screen of the terminal device to switch from the off-screen state to the on-screen state.
  • a designated application for example, a social application
  • the terminal device activates the bright screen reminder function, that is, when a chat message is received
  • the terminal device automatically turns on the bright screen state and displays the chat message on the screen.
  • the AP detects the data of the specified application in the off-screen state, it can control the terminal device to switch from the off-screen state to the on-screen state.
  • S1502 The AP determines whether the Modem is currently in a low power consumption mode.
  • the AP may first determine whether the Modem is currently in the low power consumption mode based on the state record information.
  • the Modem is currently in a low power consumption mode, for example, when it is detected that the flag is assigned as "true", the operation of sending the second indication information is performed.
  • the AP sends second indication information to the Modem.
  • the AP controls the Modem to switch between the normal working mode and the low power consumption mode to adapt to terminal devices in different screen states and different data transmission states.
  • the AP controls the Modem to switch to the low power consumption mode to reduce the power consumption of the Modem and prolong the standby time of the terminal device.
  • This application also provides a terminal device, which may be a mobile phone, a tablet computer, a notebook computer, a wearable device, a robot, and the like.
  • the terminal device includes components such as a processor 1601, a communication unit 1603, a memory 1602, a display unit 1604, and an input unit 1605.
  • a processor 1601 a communication unit 1603, a memory 1602, a display unit 1604, and an input unit 1605.
  • the structure of the terminal device shown in FIG. 16 does not constitute a limitation on the terminal device, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different component arrangement.
  • the processor 1601 is the control center of the terminal device. It uses various interfaces and lines to connect the various parts of the entire terminal device, runs or executes the software programs and/or modules stored in the memory 1602, and calls and stores them in the memory 1602. Execute various functions of the terminal equipment and process data, so as to monitor the terminal equipment as a whole.
  • the processor 1601 may include at least one of the following types: a general-purpose central processing unit (Central Processing Unit, CPU), a digital signal processor (Digital Signal Processor, DSP), a microprocessor, an application-specific integrated circuit, an application specific integrated circuit (Application-Specific Integrated Circuit, ASIC), Microcontroller (Microcontroller Unit, MCU), Field Programmable Gate Array (Field Programmable Gate Array, FPGA), or an integrated circuit used to implement logic operations.
  • the processor 1601 may be a single-CPU processor or a multi-CPU processor.
  • the processor 1601 may also include a chip system as shown in FIG. 9.
  • the communication unit 1603 may be used to send and receive information under the control of the processor 1601, including transmitting the received information to the processor 1601 for processing, and then sending the information transmitted by the processor 1601 to other communication devices.
  • the communication unit 1603 includes a radio frequency path, which includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a LNA (low noise amplifier, low noise amplifier), a duplexer, and the like.
  • the communication unit 1603 may also communicate with the network and other devices through wireless communication.
  • the wireless communication can use any communication standard or protocol, including but not limited to GSM (global system of mobile communication, global system for mobile communication), GPRS (general packet radio service, general packet radio service), CDMA (code division multiple access) , Code division multiple access), WCDMA (wideband code division multiple access, wideband code division multiple access), LTE (long term evolution), email, SMS (short messaging service, short message service), short-distance communication technology Wait.
  • GSM global system of mobile communication, global system for mobile communication
  • GPRS general packet radio service, general packet radio service
  • CDMA code division multiple access
  • Code division multiple access Code division multiple access
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • email short messaging service, short message service
  • SMS short messaging service, short message service
  • short-distance communication technology Wait any communication standard or protocol, including but not limited to GSM (global system of mobile communication, global system for mobile communication), GPRS (general packet radio service, general packet radio service), CDMA (code division multiple access) ,
  • the memory 1602 may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or storage Other types of dynamic storage devices for information and instructions may also be electrically erasable programmable read-only memory (EEPROM).
  • ROM read-only memory
  • RAM random access memory
  • EEPROM electrically erasable programmable read-only memory
  • the memory can also be a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.) , A magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory 1602 may exist independently and is connected to the processor 1601.
  • the memory 1602 may also be integrated with the processor 1601, for example, integrated in a chip.
  • the memory 1602 can store computer execution instructions for executing the technical solutions of the embodiments of the present application, and the processor 1601 controls execution, and various types of calculation execution instructions that are executed can also be regarded as driver programs of the processor 1601.
  • the processor 1601 is configured to execute computer-executable instructions stored in the memory 1602, so as to implement the method procedures shown in FIGS. 10, 11, 12, and 13 in the foregoing embodiment of the present application.
  • the input unit 1605 can be used to receive input digital or character information, and generate key signal inputs related to user settings and function control of the terminal device.
  • the input unit 1605 may include a touch screen and other input devices.
  • the touch screen also known as the touch panel, can collect the user's touch operations on or near it (for example, the user uses fingers, stylus and other suitable objects or accessories to operate on the touch screen or near the touch screen).
  • the specified program drives the corresponding connection device.
  • the touch screen may include two parts: a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 1601, and can receive and execute the commands sent by the processor 1601.
  • multiple types of resistive, capacitive, infrared, and surface acoustic waves can be used to implement touch screens.
  • the input unit 1605 may also include other input devices. Specifically, other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, power switch keys, etc.).
  • the display unit 1604 may be used to display information input by the user or information provided to the user, as well as various menu bars and/or icons of the terminal device.
  • the display unit 1604 may include a display panel.
  • the display panel can be configured in the form of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode, organic light emitting diode), etc.
  • the touch screen may cover the display panel. When the touch screen detects a touch operation on or near it, it is transmitted to the processor 1601 to determine the type of the touch event, and then the processor 1601 provides corresponding information on the display panel according to the type of the touch event. Visual output.
  • the touch screen and the display panel are used as two independent components to realize the input and input functions of the terminal device, but in some embodiments, the touch screen and the display panel can be integrated to realize the input and output of the terminal device.
  • the embodiment of the present application also provides a computer-readable storage medium.
  • the methods described in the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions can be stored on a computer-readable medium or transmitted on a computer-readable medium as one or more instructions or codes.
  • Computer-readable media may include computer storage media and communication media, and may also include any media that can transfer a computer program from one place to another.
  • the storage medium may be any available medium that can be accessed by a computer.
  • the computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used for carrying or with instructions or data structures
  • the required program code is stored in the form of and can be accessed by the computer.
  • any connection is properly termed a computer-readable medium.
  • coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave
  • coaxial cable, fiber optic cable , Twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of the medium.
  • Magnetic disks and optical disks as used herein include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVD), floppy disks, and blu-ray disks, where disks usually reproduce data magnetically, while optical disks reproduce data optically using lasers. Combinations of the above should also be included in the scope of computer-readable media.
  • the embodiment of the present application also provides a computer program product.
  • the methods described in the foregoing embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If it is implemented in software, it can be fully or partially implemented in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on the computer, the procedures or functions described in the above method embodiments are generated in whole or in part.
  • the above-mentioned computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices.

Landscapes

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

Abstract

本申请适用于终端技术领域，提供了一种功耗控制方法、芯片系统及终端设备。该方法包括：终端设备检测所述终端设备的屏幕状态和数据流量；当所述屏幕状态为灭屏状态且所述数据流量小于或者等于预设的流量阈值时，所述终端设备从正常工作模式切换到低功耗模式；其中，在所述低功耗模式下，所述终端设备不接收下行数据，且所述终端设备的射频通路的电流下降至预设电流，所述预设电流小于所述射频通路在所述正常工作模式下的电流值。

Description

一种功耗控制方法、芯片系统及终端设备
本申请要求于2020年01月03日提交国家知识产权局、申请号为202010005401.1、申请名称为“一种功耗控制方法、芯片系统及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及终端技术领域，尤其涉及一种功耗控制方法、芯片系统及终端设备。
背景技术
随着手机、平板、穿戴设备等终端设备的智能化发展，终端设备逐渐成为人们生活中不可或缺的工具。待机时间是人们挑选终端设备的一个主要因素，因此，如何延长待机时间是各生产厂家的一个主要研究方向。
发明内容
本申请实施例提供了一种功耗控制方法、芯片系统及终端设备，能够降低终端设备的功耗，延长待机时间。
第一方面，本申请提供一种功耗控制方法，该方法包括：终端设备检测所述终端设备的屏幕状态和数据流量；当所述屏幕状态为灭屏状态且所述数据流量小于或者等于预设的流量阈值时，所述终端设备从正常工作模式切换到低功耗模式；其中，在所述低功耗模式下，所述终端设备不接收下行数据，且所述终端设备的射频通路的电流下降至预设电流，所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
采用本申请提供的功耗控制方法，通过在终端设备处于灭屏状态且数据流量小于或者等于流量阈值的情况下，将终端设备从正常工作模式切换到低功耗模式，以使得终端设备的射频通路的电流下降至预设电流，从而降低了终端设备的功耗，延长了待机时间。
第二方面，本申请提供一种终端设备，所述终端设备包括处理器，存储器用于存储指令，所述处理器用于读取并执行存储器中的指令，使得所述终端设备执行：检测所述终端设备的屏幕状态和数据流量；当所述屏幕状态为灭屏状态且所述数据流量小于或者等于预设的流量阈值时，所述终端设备从正常工作模式切换到低功耗模式；其中，在所述低功耗模式下，所述终端设备不接收下行数据，且所述终端设备的射频通路的电流下降至预设电流，所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
采用本申请提供的终端设备，能够在处于灭屏状态且数据流量小于或者等于流量阈值的情况下，从正常工作模式切换到低功耗模式，以使得终端设备的射频通路的电流下降至预设电流，从而降低了终端设备的功耗，延长了待机时间。
基于上述第一方面和第二方面，可选的，所述终端设备从正常工作模式切换到低功耗模式之后，当所述终端设备检测到有下行数据需要传输时，所述终端设备从所述 低功耗模式切换到所述正常工作模式以完成所述下行数据的接收，并在预设时间段内维持所述正常工作模式。
基于该可选的方式，使得终端设备在进入低功耗模式后，能够基于突发业务及时切换回正常工作模式，保证终端设备在进入低功耗模式后，也能及时响应突发任务。
可选的，所述终端设备从正常工作模式切换到低功耗模式之后，当终端设备检测到当前传输时间间隔TTI的子帧类型为预设子帧类型时，所述终端设备从所述低功耗模式切换到所述正常工作模式，并在所述当前TTI结束后，从所述正常工作模式切换到所述低功耗模式。
基于该可选的方式，使得终端设备在进入低功耗模式后，能够基于指定子帧类型，及时切换回正常工作模式，保证终端设备在进入低功耗模式后，也能及时响应指定子帧任务。
可选的，在所述低功耗模式下，所述终端设备在每个TTI内，完成下行控制信息DCI的接收后，对所述射频通路进行射频关断，所述DCI用于指示是否存在下行数据需要接收。
可选的，当所述终端设备切换到所述低功耗模式时，所述终端设备将所述射频通路的天线分集切换到最小天线分集；所述终端设备从正常工作模式切换到低功耗模式之后，当所述终端设备检测到有下行数据需要传输时，所述终端设备将所述射频通路的天线分集切换到最大天线分集。
基于该可选的方式，终端设备能够进一步降低功耗，并延长待机时间。
可选的，所述终端设备从正常工作模式切换到低功耗模式之后，当终端设备从灭屏状态切换到亮屏状态时，终端设备从所述低功耗模式切换到所述正常工作模式。
可选的，在所述正常工作模式下，所述终端设备接收下行数据。
第三方面，本申请提供一种芯片系统，应用于终端设备，包括应用处理器AP和调制解调器Modem，所述AP检测所述终端设备的屏幕状态；当所述终端设备从亮屏状态切换到灭屏状态时，所述AP检测所述终端设备的数据流量；当所述数据流量小于或者等于预设的流量阈值时，所述AP向所述Modem发送第一指示信息，所述第一指示信息用于指示所述Modem切换到低功耗模式；所述Modem接收到所述第一指示信息后，从正常工作模式切换到所述低功耗模式；其中，在所述低功耗模式下，所述Modem不接收下行数据，且所述Modem的射频通路的电流下降至预设电流，且所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
可选的，在所述低功耗模式下，所述Modem在每个传输时间间隔TTI内，完成下行控制信息DCI的接收后，对所述射频通路进行射频关断，所述DCI用于指示是否存在下行数据需要接收。
可选的，当所述Modem从所述正常工作模式切换到所述低功耗模式之后，若所述Modem确定在当前TTI内接收到的DCI指示有下行数据需要接收，所述Modem则从下一个TTI开始，从所述低功耗模式切换到所述正常工作模式以完成所述下行数据的接收，并在预设时间段内维持所述正常工作模式。
可选的，当所述Modem从所述正常工作模式切换到所述低功耗模式之后，若所述Modem确定当前TTI的子帧类型为预设子帧类型，所述Modem从所述低功耗模式切换 到所述正常工作模式，并在所述当前TTI结束后，从所述正常工作模式切换到所述低功耗模式。
可选的，当所述Modem从所述正常工作模式切换到所述低功耗模式时，所述Modem将所述射频通路的天线分集切换到最小天线分集；所述Modem从所述正常工作模式切换到所述低功耗模式之后，当所述Modem检测到有下行数据需要传输时，所述Modem将所述射频通路的天线分集切换到最大天线分集。
可选的，当所述AP检测到所述终端设备从所述灭屏状态切换到所述亮屏状态时，所述AP向所述Modem发送第二指示信息，所述第二指示信息用于指示所述Modem切换到所述正常工作模式；Modem接收到所述第二指示信息后，从所述低功耗模式切换到所述正常工作模式。
可选的，在所述正常工作模式下，所述终端设备接收下行数据。
第四方面，本申请提供一种计算机存储介质，计算机可读存储介质存储有计算机程序，计算机程序被处理器执行时实现如第二方面或第二方面的任一可选方式所述的终端设备的功能。
第五方面，本申请实施例提供了一种计算机程序产品，该程序产品包括程序，当该程序被运行时，使得上述第二方面或第二方面的任一可选方式所述的终端设备的功能。
本申请提供的第三方面至第五方面的技术效果可以参见上述第二方面或第二方面的各个实现方式的技术效果，此处不再赘述。
附图说明
图1为本申请提供的一种功耗控制方法的一个实施例的流程图一；
图2为本申请提供的一种锁屏键的示意图；
图3为本申请提供的一种正常工作模式下的射频示意图；
图4为本申请提供的一种低功耗模式下的射频示意图一；
图5为本申请提供的一种低功耗模式下的射频示意图二；
图6为本申请提供的一种功耗控制方法的一个实施例的流程图二；
图7为本申请提供的一种天线分集的门限示意图；
图8为本申请提供的一种功耗控制方法的一个实施例的流程图三；
图9为本申请提供的一种芯片系统的示意图；
图10为本申请提供的一种芯片系统的工作流程示意图一；
图11为本申请提供的一种芯片系统的工作流程示意图二；
图12为本申请提供的一种低功耗模式的切换示意图一；
图13为本申请提供的一种低功耗模式的切换示意图二；
图14为本申请提供的一种芯片系统的工作流程示意图三；
图15为本申请提供的一种芯片系统的工作流程示意图四；
图16为本申请提供的一种终端设备的结构示意图。
具体实施方式
据统计，终端设备在灭屏状态(一般也称为锁屏状态或者黑屏状态)下，有至少98％的时间是不进行业务传输的。目前，为了保证终端设备能够及时接收到突发业务数 据，例如聊天消息、邮件、应用的通知等，即使在灭屏状态下，终端设备也始终保持准备接收数据的状态。因此，造成很多不必要的功率消耗，降低了终端设备的待机时间。
针对这一问题，本申请提供一种功耗控制方法，能够使得终端设备在灭屏状态下，切换到射频通路的电流下降至预设电流范围，且终端设备不接收下行数据的低功耗模式。以降低终端设备在灭屏状态下的功率损耗，从而延长终端设备的待机时间。
首先，在介绍本申请提供的功耗控制方法、芯片系统及终端设备的实施例之前，需要先对下文中即将提及的部分术语进行说明。当本申请提及术语“第一”或者“第二”等序数词时，除非根据上下文其确实表达顺序之意，否则应当理解为仅仅是起区分之用。
术语“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
除非另有说明，本文中“/”一般表示前后关联对象是一种“或”的关系，例如，A/B可以表示A或B。术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，在本申请的描述中，“多个”是指两个或两个以上。
其次，本申请提供的功耗控制方法适用于手机、移动电脑、平板电脑、穿戴设备等终端设备。支持第四代(fourth generation，4G)接入技术，例如长期演进(long term evolution，LTE)接入技术、LTE演进(LTE-Advanced，LTE-A)接入技术；支持第五代(fifth generation，5G)接入技术，例如新无线(new radio，NR)接入技术；还可以支持多种无线技术的系统，例如支持LTE和NR双连接的系统。当然，也可以支持面向未来的通信技术。
下面结合具体实施例，对本申请提供的功率控制方法进行示例性的说明。
参见图1，为本申请提供的一种功耗控制方法的一个实施例的流程图。如图2所示，该方法包括：
S101，终端设备检测该终端设备的屏幕状态和数据流量。
在一个实施例中，当终端设备在亮屏状态下通过用户操作确定触发锁屏信号时，终端设备则会进入锁屏且灭屏的状态，因此，终端设备可以基于用户操作确定屏幕状态。例如，当终端设备检测到用户触发的锁屏信号时，即可确定屏幕从亮屏状态切换到灭屏状态。其中，锁屏信号可以是用户按压锁屏键所触发的，锁屏键可以是虚拟按键也可以是物理按键。
例如，虚拟按键可以是终端设备的屏幕上显示的图标。示例性的，如图2所示，终端设备的屏幕上显示有“一键锁屏”图标。当终端设备检测到该“一键锁屏”图标被点击时，终端设备即可控制屏幕从亮屏状态切换到灭屏状态。
物理按键可以是专用的屏幕控制键，也可以是具备屏幕控制功能的电源键。例如，如图2所示，终端设备的屏幕侧边设置有物理按键，该物理按键被按压后产生灭屏信号，当终端设备检测到灭屏信号时，终端设备确定屏幕从亮屏状态切换到灭屏状态。 一般来讲，终端设备的电源键被长按(即超过预设第一时长，例如2s)时，可以控制终端设备开机、关机或者重启。电源键被单击时，可以控制屏幕亮或者灭。
可选的，终端设备也可以检测终端设备的锁屏时间，确定屏幕状态。锁屏时间可以理解为终端设备未检测到用户操作的时间段。当在预定锁屏时间内未检测到用户操作时，终端设备一般也会自动进入到锁屏且灭屏的状态。其中，预定锁屏时间可以由用户设定。
终端设备在检测数据流量时，可以通过内置的流量检测应用进行数据流量检测。一般来讲，流量监测应用会统计终端设备中安装的所有应用，并对每一个应用的流量进行统计，也会周期性的将所有应用在周期内产生的数据流量相加，得到终端设备的流量统计数据。那么，终端设备则可以直接获取流量监测应用的流量统计数据，以确定终端设备的数据流量情况。
在本申请实施例中，终端设备可以先检测屏幕状态，并在屏幕状态从亮屏状态切换到灭屏状态时，开始检测数据流量。
示例性的，假设终端设备确定屏幕从亮屏状态切换到灭屏状态的时刻为时刻1，终端设备可以检测以时刻1为结束时刻的指定时间段(例如5s、2s等)内的数据流量。也可以检测从时刻1为起始时刻的指定时间段内的数据流量。当然，终端设备也可以检测以时刻1为中间时刻的指定时间段内的数据流量。对此，本申请不做限制。
或者，终端设备也可以在检测到数据流量小于或者等于预设的流量阈值，检测屏幕状态是否处于灭屏状态。当然，终端设备也可以同时检测数据流量和屏幕状态，确定数据流量小于或者等于预设的流量阈值且屏幕状态为灭屏状态的时刻。
S102，当终端设备为灭屏状态，且数据流量小于或者等于预设的流量阈值时，终端设备从正常工作模式切换到低功耗模式。
在本申请实施例中，当终端处于低功耗模式下，终端设备的射频(Radio Frequency，RF)通路的电流可以下降至预设电流，终端设备还可以不接收下行数据，其中，预设电流范围小于射频通路在正常工作模式下的电流(下文中将称为正常工作电流)大小。下行数据是指承载在物理下行共享信道(Physical Downlink Shared CHannel，PDSCH)上的下行数据。
在一个实施例中，终端设备可以通过控制射频通路进行射频开启和关断实现正常工作模式和低功耗模式之间的切换。
在该实施例中，所谓正常工作模式是指射频通路按照常规的协议(例如LTE协议或者NR协议)规定进行射频的开启与关断。即终端设备的射频通路会在每个传输时间间隔(Transmission Time Interval，TTI)内开启射频，并监听物理下行控制信道(Physical Downlink Control Channel，PDCCH)上承载的下行控制信息(Downlink Control Information，DCI)。
DCI是一种由网络设备发送给终端设备的控制信令，不同格式的DCI指示不同的控制信息。例如格式1用于指示PDSCH的资源调度信息，包括调制编码方案(一般占用5bit)、混合式自动重送请求(Hybrid Automatic Repeat Request，HARQ)进程数(一般占用4bit)、新数据指示(一般占用1bit，用于指示是否有下行数据需要传输)、冗余版本(一般占用2bit)、物理上行链路控制信道(Physical Uplink Control Channel， PUCCH)传输功率控制命令(一般占用2bit)、下行分配索引(一般占用2bit)等字段。终端设备可以根据DCI确定是否有下行数据需要传输。Modem
基于常规的协议规定，一个TTI包括14个符号(symbol)，终端设备的射频通路会在TTI内的第1、2或者3个符号接收到DCI。例如，在LTE中，射频通路在第2或3个符号内完成DCI的接收。在NR中，射频通路在第1或2个符号内完成DCI的接收。在接收DCI后，终端设备保持开启射频通路的射频并进行DCI解析。然后根据DCI的解析结果确定是否下行数据需要传输。
如果有下行数据需要传输，终端设备则继续开启射频通路的射频，并根据从DCI中解析出的资源调度信息以及传输格式等控制信息，在对应的PDSCH上接收下行数据。也就是说，在有数据传输的情况下，射频通路在整个TTI内均处于射频开启的状态。
如果没有下行数据需要传输，终端设备则在第10～14个符号或者在第11～14个符号关断射频通路的射频。射频关断后，射频通路无法接收任何数据。
以LTE为例，射频通路在第3个符号完成DCI的接收，然后终端设备解析DCI，确定是否有下行数据需要传输。如果有数据传输，如图3(a)所示，射频通路在整个TTI内均处于射频开启的状态。若没有下行数据，终端设备在第11～14个符号关断射频通路的射频，直至进入下一个TTI，重新开启射频并继续监听PDCCH。即如图3(b)所示，在TTI的前10个符号内，射频通路处于射频开启的状态，在TTI的后4个符号内，射频通路处于射频关断的状态。
也就是说，在正常工作模式下，如果没有下行数据需要传输，射频通路有64.2％(即9/14)的时间，或者71.4％(即10/14)的时间在进行射频。假设，在有数据传输的情况下，射频通路的正常工作电流为A，那么在没有数据传输的情况下，射频通路的正常工作电流为64.2％*A或者71.4％*A。
在该实施例中，所谓低功耗模式是指终端设备在每个TTI内，完成下行控制信息DCI的接收后，即可对射频通路进行射频关断的模式。在低功耗模式下，终端设备不需要等待DCI解析完成，在DCI解析完成之前就可以关断射频通路的射频。
示例性的，终端设备可以在接收到DCI后立即关断射频通路的射频，也就是从在接收到DCI后的第一个符号开始关断射频。
例如，在LTE中，若射频通路在TTI的第2个符号完成DCI的接收，那么，如图4(a)所示，从第3个符号开始，射频通路在TTI的后12(14-2)个符号内处于射频关断的状态，无法接收下行数据。即射频通路有14.2％(即2/14)的时间在进行射频，用以监测PDCCH上承载的DCI。与LTE的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从64.2％*A下降至14.2％*A。
若射频通路在TTI的第3个符号完成DCI的接收，那么，如图4(b)所示，从第4个符号开始，射频通路在TTI的后11(14-3)个符号内处于射频关断的状态，无法接收下行数据。即射频通路有21.4％(即3/14)的时间在进行射频，用以监测PDCCH上承载的DCI。与LTE的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从71.4％*A下降至21.4％*A。
同理，在NR中，若射频通路在TTI的第1个符号完成DCI的接收，那么，如图4(c)所示，从第2个符号开始，射频通路在TTI的后13(14-1)个符号内处于射频 关断的状态，无法接收下行数据。即射频通路有7.1％(即1/14)的时间在进行射频，用以监测PDCCH上承载的DCI。与NR的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从64.2％*A下降至7.1％*A。
若射频通路在TTI的第2个符号完成DCI的接收，那么，如图4(a)所示，从第3个符号开始，射频通路在TTI的后12(14-2)个符号内处于射频关断的状态，无法接收下行数据。即射频通路有14.2％(即2/14)的时间在进行射频，用以监测PDCCH上承载的DCI。与NR的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从71.4％*A下降至14.2％*A。
可选的，终端设备也可以在射频通路接收到DCI之后，并从指定符号位置开始关断射频。其中，指定符号位置位于接收到DCI之后，第9个符号之前的任一符号位置。
示例性的，在LTE中，当符号之间采用常规循环前缀(normal cyclic prefix，NCP)时，如图5(a)所示，射频通路接收到DCI之后，终端设备可以从第5个符号开始关断射频通路的射频。与LTE的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从64.2％*A下降至28.6％*A，或者从71.4％*A下降至28.6％*A。
当符号之间采用扩展循环前缀(extended cyclic prefix，ECP)时，如图5(b)所示，射频通路接收到DCI之后，终端设备可以从第4个符号开始关断射频通路的射频。与LTE的正常工作模式相比，在没有下行数据需要传输的情况下，射频通路的电流从71.4％*A下降至21.4％*A，或者从64.2％*A下降至21.4％*A。
可以看出，在该实施例中，当终端设备从正常工作模式切换到低功耗模式后，相比于正常工作模式，终端设备的射频通路的电流具有较大程度的下降，例如下降了20％以上。因此，在切换到低功耗模式后，终端设备能够节省20％以上的功耗，从而延长待机时间。
由于在低功耗模式下，终端设备不接收下行数据。但灭屏状态下，终端设备也会接收到突发业务，需要进行下行数据接收。为了减少低功耗模式对下行数据传输的影响，本申请提供还提供有逃生机制。即当终端设备检测到有下行数据需要传输时，终端设备从低功耗模式切换到正常工作模式以完成下行数据的接收，并在预设时间段内维持正常工作模式。
例如，终端设备切换到低功耗模式后，每个TTI内仍然会接收DCI。若在某个TTI(例如，TTI1)内，终端设备完成DCI的解析后，发现有下行数据需要传输，终端设备即可开启逃生定时器，并从TTI1的下一个TTI(例如，TTI2)开始，切换回正常工作模式。在逃生定时器定时结束之前，终端设备始终维持在正常工作模式。
对于向终端设备发送下行数据的网络设备来说，当网络设备检测到终端设备在TTI1内未正确接收下行数据，网络侧设备则会启动重传机制，在TTI2重新发送下行数据。而在TTI2内，终端设备已经切换回正常工作模式，因此，终端设备可以正常接收该下行数据。
由于终端设备处于灭屏状态，且重传间隔仅为一个TTI，使用该终端设备的用户较难感知到下行数据发送了重传。因此，本申请提供的针对低功耗模式的逃生机制，能够保证下行数据的传输，且不会影响用户体验。
此外，即使在灭屏状态下，终端设备也需要在指定类型的子帧执行指定的任务。 例如，终端设备在EMU测量任务子帧执行EMU测量任务；在小区搜索任务子帧中执行小区搜索任务；在寻呼(Paging)子帧中进行寻呼任务；在系统信息解调任务子帧中进行系统信息解调，例如，解调主信息块(Master Information Block，MIB)或者系统信息块(System Information Blocks，SIB)；在导频配置子帧中进行信道状态信息参考信号(Channel State Information-Reference Signals，CSI-RS)导频配置等。在这些指定类型的子帧中，终端设备均需要射频通路维持射频开启状态才能顺利执行对应的任务。因此，本申请提供的生机制还可以包括对指定类型的子帧的检测。
例如，终端设备中预先设置有子帧集合，该子帧集合中包括多种预设子帧类型。例如，EMU测量任务子帧、小区搜索任务子帧、寻呼子帧、系统信息解调任务子帧、导频配置子帧等子帧类型。当然，除了前面列举的子帧类型外，该子帧集合中还可以包括其他需要维持射频状态的子帧类型，具体可以基于实际需求设置，本申请不做限制。
在终端设备处于低功耗模式的过程中，终端设备确定当前TTI的子帧类型是否属于子帧集合。若当前TTI的子帧类型为子帧集合中的一个预设子帧类型，终端设备则从低功耗模式切换到正常工作模式，以便于执行该预设子帧类型对应的任务。在当前TTI接收后，终端设备从正常工作模式切换到低功耗模式。
下面结合图6所示的流程图，对终端设备在切换到低功耗模式后的工作流程进行示例性的说明。参见图6，终端设备的工作流程包括：
S601，终端设备处于低功耗模式。
S602，终端设备检测当前TTI内的子帧类型是否属于子帧集合。
例如，终端设备在入网时会接收到网络设备下发的子帧配比信息，子帧配比信息中包括部分子帧类型的位置，例如导频配置子帧的位置。因此，终端设备可以根据子帧配比信息确定当前TTI内的子帧类型。
又或者，当网络设备指示一些子帧任务时，会通过物理广播信道(Physical Broadcast Channel，PBCH)下发控制信息，那么，当终端设备在接收到PBCH上的控制信息时，即可根据控制信息确定当前TTI内的子帧类型。
如果终端设备确定当前TTI内的子帧类型属于子帧集合时，则可以执行S603。如果终端设备确定当前TTI内的子帧类型不属于子帧集合，则可以执行S604。
S603，终端设备从低功耗模式切换回正常工作模式。
可以理解的是，终端设备切换回正常模式后，当进入下一个TTI时，可以继续检测下一个TTI内的子帧类型。如果下一个TTI内的子帧类型不属于子帧集合，终端设备即可再次切换回低功耗模式，否则仍然保持正常工作模式。
S604，终端设备解析DCI，确定是否有下行数据。
如果DCI指示没有下行数据需要传输，那么终端设备即可维持低功耗模式，并返回S602开始进行下一轮检测。若有下行数据需要传输，终端设备则可以执行S605。
S605，启动逃生定时器，并从低功耗模式切换回正常工作模式。
当检测到有下行数据需要传输时，终端设备即可从低功耗模式切换回正常工作模式，以接收该下行数据。同时，终端设备开启逃生定时器定时，在逃生定时器的定时时间段内，终端设备维持正常工作模式。
S606，逃生定时器定时结束。
当逃生定时器定时结束，终端设备即可再次切换到低功耗模式，并从S601开始进行下一轮检测。
值得说明的是，基于本申请提供的逃生机制，能够保证终端设备进入低功耗模式后，能够基于突发业务以及指定子帧类型，及时切换回正常工作模式。使得终端设备即使进入低功耗模式后，也能及时响应突发任务和指定子帧任务。
可选的，终端设备还可以通过减小射频通路的天线分集来进一步降低功耗。即当终端设备切换到低功耗模式时，终端设备将射频通路的天线分集切换到最小天线分集。
例如，终端设备的射频通路支持三种天线分集，分别为4Rx(4个接收天线)、2Rx(2个接收天线)以及1Rx(1)个接收天线。当终端设备切换到的低功耗模式时，终端设备可以直接将当前天线分集切换到最小天线分集1RX。若当前天线分集为4Rx，终端设备将4Rx切换到1Rx后，可以在上述关断射频的基础上在降低60％的功耗。若当前天线分集为2Rx，终端设备将2Rx切换到1Rx后，可以在上述关断射频的基础上在降低30％的功耗。当然，若当前天线分集已经是最小天线分集，终端设备在确定切换到低功耗模式时，可以保持当前的天线分集不变。
终端设备从正常工作模式切换到低功耗模式之后，在没有检测到有下行数据需要传输的情况下，终端设备可以始终控制射频通路的天线分集为最小天线分集。
为了保证DCI的误码率，终端设备也可以通过检测信号质量，调整天线分集的大小。例如，可以检测信号强度指示(Received Signal Strength Indication，RSSI)、信噪比(signal noise ratio，SNR)信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)等。
例如，以SINR为例，如图7所示，终端设备支持的三种天线分集4Rx、2Rx以及1Rx分别设置有一个对应的SINR门限，分别为门限1、门限2以及门限3。该SINR门限可以是网络侧设备配置给终端设备的，也可以是预先配置的。在终端设备处于低功耗模式期间，终端设备可以周期性的检测SINR。
如果当前天线分集为1Rx，那么，若终端设备检测到SINR小于门限2且大于门限1，则1Rx切换为2Rx；若检测到SINR小于门限1，则1Rx切换为4Rx；若检测到SINR大于门限2，则维持1Rx不变。
如果当前天线分集为2Rx，那么，若终端设备检测到SINR小于门限3且大于门限2，则4Rx切换为2Rx；若检测到SINR大于门限3，则4Rx切换为1Rx；若检测到SINR小于门限2，则维持4Rx不变。
如果当前天线分集为4Rx，那么，若终端设备检测到SINR小于门限1，则2Rx切换为4Rx；若检测到SINR大于门限3，则2Rx切换为1Rx；若检测到SINR大于门限1且小于门限3，则维持2Rx不变。
其中，SINR门限的设置以及基于SINR门限的切换规则可以基于实际应用的需求进行设置，本申请不做限制。
当终端设备检测到有下行数据需要传输时，终端设备即可直接将射频通路的天线分集切换到最大天线分集。
参见图8，为本申请实施例提供的另一种功率控制方法的实施例的流程图，该方 法包括：
S801，终端设备检测到屏幕状态为亮屏状态。下一步执行S802。
示例性的，终端设备可以在灭屏状态下检测终端设备的锁屏键。例如，当终端设备在灭屏状态下检测到该物理按键被按压时，即可控制终端设备的屏幕从灭屏状态切换到亮屏状态。
或者，若终端设备针对指定的应用(例如社交应用)开启的亮屏提醒功能，即当接收到聊天消息时，终端设备自动开启亮屏状态并在屏幕显示聊天消息。那么，当终端设备在灭屏状态下检测到指定应用的数据时，即可从灭屏状态切换到亮屏状态。
S802，当终端设备处于低功耗模式时，终端设备从低功耗模式切换到正常工作模式。
在该实施例中，当终端设备处于亮屏状态时，发现终端设备仍处于低功耗模式，终端设备则可以退出低功耗模式，从低功耗模式切换到正常工作模式。
至此，为本申请提供的功率控制方法，终端设备可以基于不同的屏幕状态以及不同的数据传输状态，在正常工作模式和低功耗模式之间切换。在终端设备处于可能大部分时间都没有下数据传输的灭屏状态的情况下，终端设备通过切换到低功耗模式以降低终端设备的功耗，从而延长终端设备的待机时间。
下面介绍本申请提供的一种能够实现上述功率控制方法的芯片系统，如图9所示，包括AP和Modem。
其中，AP可以包括中央处理单元(Central Processing Unit，CPU)、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现成可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。AP用于执行终端设备的各种功能应用以及数据处理，从而控制终端设备的操作系统、用户界面、应用程序等的运行。Modem也可以称为基带处理器(Base band Processor，BP)，用于控制终端设备的射频通路进行数据收发以及信号调制等操作，以实现终端设备的射频通信功能。
在本申请实施例中，AP可以根据终端设备的屏幕状态以及数据流量控制Modem在正常工作模式和低功耗模式之间切换，实现上述功率控制方法。
下面结合流程图，对本申请提供的芯片系统中，AP对Modem的控制流程以及Modem切换到低功耗模式后的工作流程进行示例性的说明。
图10为AP控制Modem切换到低功耗模式的一个实施例的流程图，包括：
S1001，AP检测终端设备的屏幕状态。
示例性的，AP可以通过检测锁屏键触发的信号来检测屏幕状态。例如，当AP检测到终端设备的屏幕所显示的锁屏键的虚拟按键被点击时，AP确定终端设备从亮屏状态切换到灭屏状态。锁屏键的物理按键(例如，专用的锁屏键或者是具备锁屏功能的电源键)被按压后产生灭屏信号，当AP检测到灭屏信号时，确定终端设备从亮屏状态切换到灭屏状态。
或者，AP也可以检测终端设备的锁屏时间。当终端设备的锁屏时间到时时，AP即可确定屏幕从亮屏状态切换到灭屏状态。
S1002，当AP检测到终端设备从亮屏状态切换到灭屏状态时，AP检测终端设备的数据流量。
当AP确定终端设备从亮屏状态切换到灭屏状态时，AP开始检测数据流量。例如，终端设备中安装有流量监测应用，那么AP可以直接获取流量监测应用的监控数据。或者，AP也可以获取Modem对射频通路上传输的数据流量的统计信息，modern可以通过上下行数据包的大小进行流量统计。
示例性的，假设AP确定终端设备从亮屏状态切换到灭屏状态的时刻为时刻1，AP可以检测以时刻1为结束时刻的指定时间段(例如5s、2s等)内的数据流量。也可以检测从时刻1为起始时刻的指定时间段内的数据流量。当然，AP也可以检测以时刻1为中间时刻的指定时间段内的数据流量。对此，本申请不做限制。
S1003，当数据流量小于或者等于预设的流量阈值时，AP向Modem发送第一指示信息，第一指示信息用于指示Modem切换到低功耗模式。
S1004，Modem接收到第一指示信息后，从正常工作模式切换到低功耗模式。
其中，在低功耗模式下，Modem不接收下行数据，且Modem的射频通路的电流下降至预设电流。低功耗模式的具体实现方式可以参见上述步骤S102中的相关描述，此处不再赘述。
在一个实例中，为了避免AP出现错判，导致低功耗模式和正常工作模式反向切换，AP可以在检测到终端设备的屏幕状态发生变化之后，进一步确认Modem的工作模式。
示例性的，AP和Modem中可以设置状态记录信息。AP中的状态记录信息用于记录AP上一次发送的模式切换指示信息是第一指示信息还是第二指示信息。若状态记录信息中记录的是第一指示信息，则表示上一次发送的是第一指示信息，AP可以确定当前Modem处于低功耗模式。若状态记录信息中记录的是第二指示信息，则表示上一次发送的是第二指示信息，AP可以确定当前Modem处于正常工作模式。AP每次发送模式切换指示信息时，都会同时更新状态记录信息。其中，第二指示信息用于指示Modem切换到正常工作模式。
Modem中的状态记录信息用于记录Modem当前的工作模式。当Modem接收到第一指示信息，则将状态记录信息更新为第一指示信息，并切换到低功耗模式。当Modem接收到第二指示信息时，则将状态记录信息更新为第二指示信息，并切换到正常工作模式。
示例性的，模式切换指示信息可以是一个标志位flag，当flag赋值为“true”时，表示第一指示信息，当flag赋值为“false”时，表示第二指示信息。
在该示例中，AP发送第一指示信息的流程，还可以如图11所示，包括：
S1101，AP检测到终端设备从亮屏状态切换到灭屏状态。
S1102，AP确定Modem当前是否处于低功耗模式。
即AP在检测到终端设备从亮屏状态切换到灭屏状态后，可以先基于状态记录信息确定Modem当前是否处于低功耗模式。在Modem当前处于正常工作模式下，也就是检测到flag赋值为“false”时，才会进一步对终端设备的数据流量进行检测。
如果Modem当前处于正常工作模式，AP则在延迟预设时间段后，返回执行S1102，重新确定Modem是否处于低功耗模式。如果Modem当前处于低功耗模式，AP则执行 S1103。
S1103，AP确定终端设备的数据流量是否小于或者等于流量阈值。
如果AP检测到终端设备的数据流量小于或者等于流量阈值，AP可以则执行S1104。如果终端设备的数据流量大于流量阈值，AP则可以在延迟预设时间段后，返回执行S1102。
S1104，AP向Modem发送第一指示信息。
在一个示例中，AP向Modem发送第一指示信息时，可以通过共享内存发送。即AP将第一指示信息存入终端设备的共享内存中，Modem即可从共享内存中获取第一指示信息。
对于Modem来说，当接收到第一指示信息后，Modem可以直接切换到低功耗模式。例如，如图12所示，假设Modem在TTI2接收到AP发送的第一指示信息，Modem则从TTI2之后的第一个TTI(假设为TTI3)开始，切换到低功耗模式。
或者，Modem在接收到第一指示信息后，也可以先进行数据检测，确定切换时机。然后在确定切换时机之后切换到低功耗模式。
例如，Modem在接收到第一指示信息后，可以先在滑动判决窗内检测是否存在至少一个DCI指示有下行数据需要传输。若滑动判决窗内没有一个DCI指示有下行数据传输，Modem则从该滑动判决窗对应的TTI开始，切换到低功耗模式。
其中，一个TTI的滑动判决窗是指该TTI之前连续的M(M≥0)个TTI所构成的时间段。
例如，假设M＝3，TTI0-TTI10为连续的11个TTI。TTI0-TTI2为TTI3的滑动判决窗，TTI1-TTI3为TTI4的滑动判决窗，TTI2-TTI4为TTI5的滑动判决窗，依次类推，TTI7-TTI9为TTI10的滑动判决窗。若Modem在TTI2接收到AP发送的第一指示信息，Modem则从TTI2之后的第一个TTI，也就是TTI3开始进行数据检测，确定执行模式切换的TTI。即Modem首先确定在TTI3的滑动判决窗TTI0-TTI2内接收到的3个DCI中是否存在至少一个DCI指示有下行数据传输。若没有一个DCI指示有下行数据传输，Modem即可确定执行模式切换的TTI为TTI3。Modem从TTI3开始按照切换到低功耗模式。
若在TTI3的滑动判决窗内接收到的3个DCI中存在指示有下行数据需要传输的DCI，如图13所示，Modem则继续检测TTI4是否为执行模式切换的TTI。即Modem确定TTI4的滑动判决窗TTI1-TTI3内接收到的3个DCI中是否存在至少一个DCI指示有下行数据传输。若没有一个DCI指示有下行数据传输，Modem即可确定执行模式切换的TTI为TTI4。Modem从TTI4开始切换到低功耗模式。
若在TTI4的滑动判决窗内接收到的3个DCI中存在指示有下行数据传输的DCI，Modem则继续检测TTI5是否为执行模式切换的TTI。依次类推，直至确定执行模式切换的TTI，并从该TTI开始切换到低功耗模式。
Modem在接收到第一指示信息后，通过在滑动判决窗内进行数据检测，能够进一步保证在切换到低功耗模式时，没有下行数据需要传输，从而避免低功耗模式在切换过程中对终端设备的下行数据传输的影响。
在实际应用中，终端设备即使在灭屏状态下，也可能随时接收到突发业务，需要 进行下行数据接收。由于Modem接收到DCI之后，在未完成DCI的解析情况下便关断射频通路的射频。因此，当Modem完成DCI的解析，发现有下行数据需要传输时，Modem则无法控制射频通路在指定的PDSCH上接收下行数据。
为了减少低功耗模式对下行数据传输的影响，本申请提供的芯片系统还设置有逃生机制。即当Modem检测到有下行数据需要传输时，Modem从低功耗模式切换到正常工作模式以完成下行数据的接收，并在预设时间段内维持正常工作模式。
示例性的，当Modem处于低功耗模式时，Modem在每个TTI内接收到DCI后会在射频关断的状态下解析DCI。若在当前TTI内，Modem通过对DCI的解析确定有下行数据传输，Modem即可启动逃生机制。即Modem启动逃生定时器，并从下一个TTI开始，切换回正常工作模式，以便于接收DCI指示的下行数据。在逃生定时器定时结束之前Modem维持正常工作模式。
示例性的，在TTI11内，Modem采用低功耗模式监听PDCCH，在接收到DCI11之后关断射频。Modem通过对DCI11的解析确定有下行数据传输，Modem则立即启动逃生定时器，并从下一个TTI(假设为TTI12)开始，切换回正常工作模式，以便于接收DCI11指示的下行数据。假设，逃生定时器的定时时间为20个TTI，那么Modem在开启逃生定时器后，在TTI12-TTI32这20个TTI内均保持正常工作模式。
对于向终端设备传输下行数据的网络设备来说，当网络设备检测到终端设备在TTI11内未正确接收下行数据，网络侧设备则会启动重传机制，在TTI12重新发送下行数据。由于终端设备处于灭屏状态，且重建间隔仅为一个TTI，使用该终端设备的用户较难感知到下行数据发送了重传。因此，本申请提供的芯片系统的逃生机制，在保证下行数据传输的情况下，并不会影响用户的用户体验。
可以理解的是，在逃生定时器的定时期间，若AP没有发送第二指示信息，Modem的状态记录信息中仍然记录的是第一指示信息。那么，当逃生定时器的定时结束后，Modem基于状态记录信息中记录的第一指示信息，自动切换回低功耗模式。
相应的，在逃生定时器的定时期间，若AP发送了第二指示信息指示Modem切换到正常工作模式。Modem则根据第二指示信息更新状态记录信息。当逃生定时器的定时结束后，Modem基于状态记录信息中记录的第二指示信息，维持正常工作模式。
此外，终端设备即使在灭屏状态下，也需要在指定类型的子帧执行指定的任务。例如，终端设备在EMU测量任务子帧执行EMU测量任务；在小区搜索任务子帧中执行小区搜索任务；在寻呼子帧中进行寻呼任务；在系统信息解调任务子帧中进行系统信息解调，例如，解调MIB或者SIB；在导频配置子帧中进行CSI-RS导频配置等。在这些子帧中，Modem均需要维持射频状态才能顺利执行对应的任务。因此，本申请提供的芯片系统中设置的逃生机制还可以包括对指定类型的子帧的检测。
示例性的，Modem中预先设置有子帧集合，该子帧集合中包括多种预设子帧类型。例如，EMU测量任务子、小区搜索任务子帧、寻呼子帧、系统信息解调任务子帧、导频配置子帧等子帧类型。当然，除了前面列举的子帧类型外，该子帧集合中还可以包括其他需要维持射频状态的子帧类型，具体可以基于实际需求设置，本申请不做限制。
Modem在处于低功耗模式的过程中，在每个TTI内确定该TTI的子帧类型是否属于子帧集合。若该TTI的子帧类型为该子帧集合中的一个子帧类型，Modem在该TTI 内切换到征程工作模式，以便于执行该预设子帧类型对应的任务。并且在该TTI接收后，Modem从正常工作模式切换到低功耗模式。
下面结合图14所示的流程图，对Modem却换到低功耗模式后的工作流程进行示例性的说明。参见图14，Modem的工作流程包括：
S1401，Modem检测状态记录信息中记录的是否为第一指示信息。
当Modem检测到状态记录信息中记录的是第一指示信息时，Modem则可以执行S1402。当Modem检测到状态记录信息中记录的是第二指示信息时，Modem则可以执行S1408。
S1402，Modem切换到低功耗模式。
S1403，Modem检测当前TTI内的子帧类型是否属于子帧集合。
如果Modem确定当前TTI内的子帧类型属于子帧集合时，则可以执行S1404。如果Modem确定当前TTI内的子帧类型不属于子帧集合，则可以执行S1405。
S1404，Modem切换到正常工作模式。
可以理解的是，Modem切换回正常模式后，当进入下一个TTI时，可以继续检测下一个TTI内的子帧类型。如果下一个TTI内的子帧类型不属于子帧集合，终端设备即可再次切换回低功耗模式，即返回执行S1402，否则仍然保持正常工作模式。
S1405，Modem解析DCI，确定是否有下行数据。
如果DCI指示没有下行数据需要传输，那么Modem即可维持低功耗模式，并返回S1041开始进行下一轮检测。若有下行数据需要传输，终端设备则可以执行S1406。
S1406，启动逃生定时器，并切换到正常工作模式。
当检测到有下行数据需要传输时，Modem即可从低功耗模式切换回正常工作模式，以接收该下行数据。同时，Modem开启逃生定时器定时，在逃生定时器的定时时间段内，Modem维持正常工作模式。
S1407，确定逃生定时器定时结束。
当Modem确定逃生定时器定时结束，Modem则可以返回执行S1041，进行下一轮检测。
S1408，Modem切换到正常工作模式。
可以看出，基于本申请提供的逃生机制，Modem进入低功耗模式后，能够基于突发业务以及指定子帧类型，及时切换回正常工作模式。使得射频通路即使进入低功耗模式后，也能及时响应突发任务和指定子帧任务。
可选的，Modem还可以通过减小射频通路的天线分集来进一步降低功耗。即当Modem切换到低功耗模式时，Modem将射频通路的天线分集切换到最小天线分集。
例如，射频通路支持三种天线分集，分别为4Rx(4个接收天线)、2Rx(2个接收天线)以及1Rx(1)个接收天线。当Modem切换到的低功耗模式时，Modem可以直接将当前天线分集切换到最小天线分集1RX。若当前天线分集为4Rx，Modem将4Rx切换到1Rx后，可以在上述关断射频的基础上在降低60％的功耗。若当前天线分集为2Rx，Modem将2Rx切换到1Rx后，可以在上述关断射频的基础上在降低30％的功耗。当然，若当前天线分集已经是最小天线分集，Modem在确定切换到低功耗模式时，可以保持当前的天线分集不变。
Modem从正常工作模式切换到低功耗模式之后，在没有检测到有下行数据需要传输的情况下，Modem可以始终控制射频通路的天线分集为最小天线分集。
或者，为了保证DCI的误码率，Modem也可以根据信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)，实时调整天线分集的大小。
具体的，Modem根据SINR实时时调整天线分集的大小的方式可以参见上述图7所示的示例中的描述，此处不再赘述。
当Modem检测到有下行数据需要传输时，Modem即可直接将射频通路的天线分集切换到最大天线分集。
上述实施例主要描述了AP控制Modem切换到低功耗模式以及Modem在低功耗模式的工作流程。下面对AP控制控制Modem切换到正常工作模式的流程进行示例性的说明。
一种可能的实现方式为，当AP检测到终端设备从灭屏状态切换到亮屏状态时，AP即可发送第二指示信息给Modem，指示Modem切换到正常工作模式。
另一种可能的实现方式为，当终端设备从灭屏状态切换到亮屏状态时，AP在确定Modem处于低功耗模式的情况下发送第二指示信息，控制Modem从低功耗模式切换到正常工作模式。
示例性的，AP发送第二指示信息的流程，可以如图15所示，包括：
S1501，AP检测到AP从灭屏状态切换到亮屏状态。
示例性的，AP可以在灭屏状态下检测AP的锁屏键。例如，当AP在灭屏状态下检测到该物理按键被按压时，即可控制终端设备的屏幕从灭屏状态切换到亮屏状态。
或者，若终端设备中指定的应用(例如社交应用)开启的亮屏提醒功能，即当接收到聊天消息时，终端设备自动开启亮屏状态并在屏幕显示聊天消息。那么，当AP在灭屏状态下检测到指定应用的数据时，即可控制终端设备从灭屏状态切换到亮屏状态。
S1502，AP确定Modem当前是否处于低功耗模式。
相应的，AP在检测到终端设备从亮屏状态切换到灭屏状态后，可以先基于状态记录信息确定Modem当前是否处于低功耗模式。在Modem当前处于低功耗模式下，例如，检测到flag赋值为“true”时，才执行第二指示信息发送的操作。
S1503，AP向Modem发送第二指示信息。
至此，为本申请提供的芯片系统，由AP控制Modem在正常工作模式和低功耗模式之间切换，以适应处于不同屏幕状态、不同数据传输状态的终端设备。在终端设备处于可能大部分时间都没有数据传输的灭屏状态时，AP通过控制Modem切换到低功耗模式，以达到降低Modem的功耗，延长终端设备的待机时间的效果。
本申请还提供一种包括终端设备，该终端设备可以是手机、平板电脑、笔记本电脑、穿戴设备、机器人等。
下面结合图16对与本申请的各个实施例相关的终端设备的部分结构进行示例性的说明书。
如图16所示，终端设备包括处理器1601、通信单元1603、存储器1602、显示单元1604以及输入单元1605等部件。本领域技术人员可以理解，图16中示出的终端设备结构并不构成对终端设备的限定，可以包括比图示更多或更少的部件，或者组合某 些部件，或者不同的部件布置。
其中，处理器1601是终端设备的控制中心，利用各种接口和线路连接整个终端设备的各个部分，通过运行或执行存储在存储器1602内的软件程序和/或模块，以及调用存储在存储器1602内的数据，执行终端设备的各种功能和处理数据，从而对终端设备进行整体监控。可选的，处理器1601可包括如下至少一种类型：通用中央处理器(Central Processing Unit，CPU)、数字信号处理器(Digital Signal Processor，DSP)、微处理器、特定应用集成电路专用集成电路(Application-Specific Integrated Circuit，ASIC)、微控制器(Microcontroller Unit，MCU)、现场可编程门阵列(Field Programmable Gate Array，FPGA)、或者用于实现逻辑运算的集成电路。例如，处理器1601可以是一个单核(single-CPU)处理器或多核(multi-CPU)处理器。可选的，处理器1601也可以包括如如图9所示的芯片系统。
其中，通信单元1603可用于在处理器1601的控制下收发信息，包括将接收到的信息传输给处理器1601处理，然后将处理器1601传输的信息发送给其他通信设备。通常，通信单元1603包括射频通路，射频通路包括但不限于天线、至少一个放大器、收发信机、耦合器、LNA(low noise amplifier，低噪声放大器)、双工器等。此外，通信单元1603还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议，包括但不限于GSM(global system of mobile communication，全球移动通讯系统)、GPRS(general packet radio service，通用分组无线服务)、CDMA(code division multiple access，码分多址)、WCDMA(wideband code division multiple access,宽带码分多址)、LTE(long term evolution,长期演进)、电子邮件、SMS(short messaging service，短消息服务)、短距离通信技术等。
存储器1602可以包括如下至少一种类型：只读存储器(read-only memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(random access memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically erasable programmabler-only memory，EEPROM)。在某些场景下，存储器还可以是只读光盘(compact disc read-only memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。
存储器1602可以是独立存在，与处理器1601相连。可选的，存储器1602也可以和处理器1601集成在一起，例如集成在一个芯片之内。其中，存储器1602能够存储执行本申请实施例的技术方案的计算机执行指令，并由处理器1601来控制执行，被执行的各类计算执行指令也可被视为是处理器1601的驱动程序。例如，处理器1601用于执行存储器1602中存储的计算机执行指令，从而实现上述本申请实施例中如图10、11、12、13所示的方法流程。
输入单元1605可用于接收输入的数字或字符信息，以及产生与终端设备的用户设置以及功能控制有关的键信号输入。具体地，输入单元1605可包括触摸屏以及其他输入设备。触摸屏，也称为触控面板，可收集用户在其上或附近的触摸操作(比如用户 使用手指、触笔等任何适合的物体或附件在触摸屏上或在触摸屏附近的操作)，并根据预先设定的程式驱动相应的连接装置。可选的，触摸屏可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1601，并能接收处理器1601发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触摸屏。除了触摸屏，输入单元1605还可以包括其他输入设备。具体地，其他输入设备可以包括但不限于物理键盘、功能键(比如音量控制按键、电源开关按键等)等中的一种或多种。
显示单元1604可用于显示由用户输入的信息或提供给用户的信息以及终端设备的各种菜单栏和/或图标。显示单元1604可包括显示面板。可选的，可以采用LCD(Liquid Crystal Display，液晶显示器)、OLED(Organic Light-Emitting Diode,有机发光二极管)等形式来配置显示面板。进一步的，触摸屏可覆盖显示面板，当触摸屏检测到在其上或附近的触摸操作后，传送给处理器1601以确定触摸事件的类型，随后处理器1601根据触摸事件的类型在显示面板上提供相应的视觉输出。虽然在图16中，触摸屏与显示面板是作为两个独立的部件来实现终端设备的输入和输入功能，但是在某些实施例中，可以将触摸屏与显示面板集成而实现终端设备的输入和输出功能。
本申请实施例还提供了一种计算机可读存储介质。上述实施例中描述的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。如果在软件中实现，则功能可以作为一个或多个指令或代码存储在计算机可读介质上或者在计算机可读介质上传输。计算机可读介质可以包括计算机存储介质和通信介质，还可以包括任何可以将计算机程序从一个地方传送到另一个地方的介质。存储介质可以是可由计算机访问的任何可用介质。
作为一种可选的设计，计算机可读介质可以包括RAM，ROM，EEPROM，CD-ROM或其它光盘存储器，磁盘存储器或其它磁存储设备，或可用于承载的任何其它介质或以指令或数据结构的形式存储所需的程序代码，并且可由计算机访问。而且，任何连接被适当地称为计算机可读介质。例如，如果使用同轴电缆，光纤电缆，双绞线，数字用户线(DSL)或无线技术(如红外，无线电和微波)从网站，服务器或其它远程源传输软件，则同轴电缆，光纤电缆，双绞线，DSL或诸如红外，无线电和微波之类的无线技术包括在介质的定义中。如本文所使用的磁盘和光盘包括光盘(CD)，激光盘，光盘，数字通用光盘(DVD)，软盘和蓝光盘，其中磁盘通常以磁性方式再现数据，而光盘利用激光光学地再现数据。上述的组合也应包括在计算机可读介质的范围内。
本申请实施例还提供了一种计算机程序产品。上述实施例中描述的方法可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。如果在软件中实现，可以全部或者部分得通过计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行上述计算机程序指令时，全部或部分地产生按照上述方法实施例中描述的流程或功能。上述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。
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，凡在本发明的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明的保护范围之内。

Claims (22)

  1. 一种功耗控制方法，其特征在于，所述方法包括：
    终端设备检测所述终端设备的屏幕状态和数据流量；
    当所述屏幕状态为灭屏状态且所述数据流量小于或者等于预设的流量阈值时，所述终端设备从正常工作模式切换到低功耗模式；
    其中，在所述低功耗模式下，所述终端设备不接收下行数据，且所述终端设备的射频通路的电流下降至预设电流，所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，所述方法还包括：
    当所述终端设备检测到有下行数据需要传输时，所述终端设备从所述低功耗模式切换到所述正常工作模式以完成所述下行数据的接收，并在预设时间段内维持所述正常工作模式。
  3. 根据权利要求1或2所述的方法，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，所述方法还包括：
    当终端设备检测到当前传输时间间隔TTI的子帧类型为预设子帧类型时，所述终端设备从所述低功耗模式切换到所述正常工作模式，并在所述当前TTI结束后，从所述正常工作模式切换到所述低功耗模式。
  4. 根据权利要求1-3任一项所述的方法，其特征在于，在所述低功耗模式下，所述终端设备在每个TTI内，完成下行控制信息DCI的接收后，对所述射频通路进行射频关断，所述DCI用于指示是否存在下行数据需要接收。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述方法还包括：
    当所述终端设备切换到所述低功耗模式时，所述终端设备将所述射频通路的天线分集切换到最小天线分集；
    所述终端设备从正常工作模式切换到低功耗模式之后，当所述终端设备检测到有下行数据需要传输时，所述终端设备将所述射频通路的天线分集切换到最大天线分集。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，所述方法还包括：
    当终端设备从灭屏状态切换到亮屏状态时，终端设备从所述低功耗模式切换到所述正常工作模式。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，在所述正常工作模式下，所述终端设备接收下行数据。
  8. 一种芯片系统，应用于终端设备，包括应用处理器AP和调制解调器Modem，其特征在于，
    所述AP检测所述终端设备的屏幕状态，所述屏幕状态包括亮屏状态和灭屏状态；
    当所述终端设备从亮屏状态切换到灭屏状态时，所述AP检测所述终端设备的数据流量；
    当所述数据流量小于或者等于预设的流量阈值时，所述AP向所述Modem发送第一指示信息，所述第一指示信息用于指示所述Modem切换到低功耗模式；
    所述Modem接收到所述第一指示信息后，从正常工作模式切换到所述低功耗模式；
    其中，在所述低功耗模式下，所述Modem不接收下行数据，且所述Modem的射频通路的电流下降至预设电流，且所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
  9. 根据权利要求8所述的芯片系统，其特征在于，在所述低功耗模式下，所述Modem在每个传输时间间隔TTI内，完成下行控制信息DCI的接收后，对所述射频通路进行射频关断，所述DCI用于指示是否存在下行数据需要接收。
  10. 根据权利要求9所述的芯片系统，其特征在于，当所述Modem从所述正常工作模式切换到所述低功耗模式之后，若所述Modem确定在当前TTI内接收到的DCI指示有下行数据需要接收，所述Modem则从下一个TTI开始，从所述低功耗模式切换到所述正常工作模式以完成所述下行数据的接收，并在预设时间段内维持所述正常工作模式。
  11. 根据权利要求9或10所述的芯片系统，其特征在于，当所述Modem从所述正常工作模式切换到所述低功耗模式之后，若所述Modem确定当前TTI的子帧类型为预设子帧类型，所述Modem从所述低功耗模式切换到所述正常工作模式，并在所述当前TTI结束后，从所述正常工作模式切换到所述低功耗模式。
  12. 根据权利要求8-11任一项所述的芯片系统，其特征在于，
    当所述Modem从所述正常工作模式切换到所述低功耗模式时，所述Modem将所述射频通路的天线分集切换到最小天线分集；
    所述Modem从所述正常工作模式切换到所述低功耗模式之后，当所述Modem检测到有下行数据需要传输时，所述Modem将所述射频通路的天线分集切换到最大天线分集。
  13. 根据权利要求8-12任一项所述的芯片系统，其特征在于，
    当所述AP检测到所述终端设备从所述灭屏状态切换到所述亮屏状态时，所述AP向所述Modem发送第二指示信息，所述第二指示信息用于指示所述Modem切换到所述正常工作模式；
    Modem接收到所述第二指示信息后，从所述低功耗模式切换到所述正常工作模式。
  14. 根据权利要求8-13任一项所述的芯片系统，其特征在于，在所述正常工作模式下，所述Modem接收下行数据。
  15. 一种终端设备，其特征在于，所述终端设备包括处理器和存储器，存储器用于存储指令，所述处理器用于读取并执行存储器中的指令，使得所述终端设备执行：
    检测所述终端设备的屏幕状态和数据流量；
    当所述屏幕状态为灭屏状态且所述数据流量小于或者等于预设的流量阈值时，所述终端设备从正常工作模式切换到低功耗模式；
    其中，在所述低功耗模式下，所述终端设备不接收下行数据，且所述终端设备的射频通路的电流下降至预设电流，所述预设电流小于所述射频通路在所述正常工作模式下的电流值。
  16. 根据权利要求15所述的终端设备，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，当所述终端设备检测到有下行数据需要传输时，所述终端 设备从所述低功耗模式切换到所述正常工作模式以完成所述下行数据的接收，并在预设时间段内维持所述正常工作模式。
  17. 根据权利要求15或16所述的终端设备，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，当终端设备检测到当前传输时间间隔TTI的子帧类型为预设子帧类型时，所述终端设备从所述低功耗模式切换到所述正常工作模式，并在所述当前TTI结束后，从所述正常工作模式切换到所述低功耗模式。
  18. 根据权利要求15-17任一项所述的终端设备，其特征在于，在所述低功耗模式下，所述终端设备在每个TTI内，完成下行控制信息DCI的接收后，对所述射频通路进行射频关断，所述DCI用于指示是否存在下行数据需要接收。
  19. 根据权利要求15-18任一项所述的终端设备，其特征在于，当所述终端设备切换到所述低功耗模式时，所述终端设备将所述射频通路的天线分集切换到最小天线分集；
    所述终端设备从正常工作模式切换到低功耗模式之后，当所述终端设备检测到有下行数据需要传输时，所述终端设备将所述射频通路的天线分集切换到最大天线分集。
  20. 根据权利要求15-19任一项所述的终端设备，其特征在于，所述终端设备从正常工作模式切换到低功耗模式之后，当终端设备从灭屏状态切换到亮屏状态时，终端设备从所述低功耗模式切换到所述正常工作模式。
  21. 根据权利要求15-20任一项所述的终端设备，其特征在于，在所述正常工作模式下，所述终端设备接收下行数据。
  22. 一种计算机存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被芯片系统执行时实现如权利要求15-21任一项所述的终端设备的功能。
PCT/CN2020/134564 2020-01-03 2020-12-08 一种功耗控制方法、芯片系统及终端设备 WO2021135859A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20908739.4A EP4044694B1 (en) 2020-01-03 2020-12-08 Power consumption control method and terminal device
US17/774,819 US20220408366A1 (en) 2020-01-03 2020-12-08 Power consumption control method, chip system, and terminal device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010005401.1A CN113079558B (zh) 2020-01-03 2020-01-03 一种功耗控制方法、芯片系统及终端设备
CN202010005401.1 2020-01-03

Publications (1)

Publication Number Publication Date
WO2021135859A1 true WO2021135859A1 (zh) 2021-07-08

Family

ID=76608585

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/134564 WO2021135859A1 (zh) 2020-01-03 2020-12-08 一种功耗控制方法、芯片系统及终端设备

Country Status (4)

Country Link
US (1) US20220408366A1 (zh)
EP (1) EP4044694B1 (zh)
CN (1) CN113079558B (zh)
WO (1) WO2021135859A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115514454A (zh) * 2022-09-19 2022-12-23 Oppo广东移动通信有限公司 数据传输方法及装置、电子设备、计算机可读存储介质
WO2023207267A1 (zh) * 2022-04-28 2023-11-02 中兴通讯股份有限公司 数据传输方法、模型训练方法、设备、计算机可读介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104244379A (zh) * 2013-06-07 2014-12-24 腾讯科技（深圳）有限公司 移动终端的无线网络控制方法和装置
US20180092090A1 (en) * 2016-09-29 2018-03-29 Mediatek Inc. Method And Apparatus For Transmission Resource Allocation In Mobile Communications
US20190268128A1 (en) * 2018-05-14 2019-08-29 Intel Corporation Interruption for scell activation and deactivation with short transmission time interval
CN110505679A (zh) * 2019-08-15 2019-11-26 Oppo广东移动通信有限公司 一种通信终端的功耗控制方法、装置及存储介质

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8908581B2 (en) * 2007-05-01 2014-12-09 Qualcomm Incorporated Extended microsleep for communications
US8369280B2 (en) * 2011-07-01 2013-02-05 Ofinno Techologies, LLC Control channels in multicarrier OFDM transmission
CN104137601B (zh) * 2012-02-27 2018-09-28 高通股份有限公司 用于响应于对提前解码的确认而提前终止传输的方法和系统
US9491704B2 (en) * 2012-03-23 2016-11-08 Blackberry Limited Methods and apparatus for controlling power consumption in an electronic device with a communication subsystem
US20140179235A1 (en) * 2012-12-20 2014-06-26 Mediatek Inc. Method for reducing power consumption and communications apparatus utilizing the same
KR102028117B1 (ko) * 2013-03-06 2019-10-02 삼성전자주식회사 무선 통신 시스템에서 전송 구간 단위 전력 절약 장치 및 방법
US9955333B2 (en) * 2014-08-20 2018-04-24 Qualcomm, Incorporated Secure wireless wake-up companion
CN104935044B (zh) * 2015-06-17 2018-10-12 努比亚技术有限公司 充电方法和充电装置
KR102658778B1 (ko) * 2016-02-18 2024-04-19 삼성전자주식회사 전자 장치에서 데이터를 송/수신하는 장치 및 방법
CN108023714A (zh) * 2016-11-04 2018-05-11 电信科学技术研究院 一种短传输时间间隔的监听指示及监听方法、装置
CN108616653B (zh) * 2018-03-30 2020-01-17 Oppo广东移动通信有限公司 信息处理方法、装置、移动终端和计算机可读存储介质
CN108809777B (zh) * 2018-06-15 2021-12-21 广东美的制冷设备有限公司 运行控制方法、Wi-Fi通信模块、家电设备、系统和存储介质
CN109219116B (zh) * 2018-08-09 2022-05-31 华为技术有限公司 一种终端设备的休眠方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104244379A (zh) * 2013-06-07 2014-12-24 腾讯科技（深圳）有限公司 移动终端的无线网络控制方法和装置
US20180092090A1 (en) * 2016-09-29 2018-03-29 Mediatek Inc. Method And Apparatus For Transmission Resource Allocation In Mobile Communications
US20190268128A1 (en) * 2018-05-14 2019-08-29 Intel Corporation Interruption for scell activation and deactivation with short transmission time interval
CN110505679A (zh) * 2019-08-15 2019-11-26 Oppo广东移动通信有限公司 一种通信终端的功耗控制方法、装置及存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4044694A4

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023207267A1 (zh) * 2022-04-28 2023-11-02 中兴通讯股份有限公司 数据传输方法、模型训练方法、设备、计算机可读介质
CN115514454A (zh) * 2022-09-19 2022-12-23 Oppo广东移动通信有限公司 数据传输方法及装置、电子设备、计算机可读存储介质
CN115514454B (zh) * 2022-09-19 2024-05-28 Oppo广东移动通信有限公司 数据传输方法及装置、电子设备、计算机可读存储介质

Also Published As

Publication number Publication date
EP4044694A4 (en) 2023-03-29
CN113079558B (zh) 2022-10-18
US20220408366A1 (en) 2022-12-22
EP4044694B1 (en) 2024-04-17
EP4044694A1 (en) 2022-08-17
CN113079558A (zh) 2021-07-06

Similar Documents

Publication Publication Date Title
CN110446235B (zh) 通话模式确定方法及装置、电子设备、存储介质
WO2021135859A1 (zh) 一种功耗控制方法、芯片系统及终端设备
EP3905753A1 (en) Dci transmission method, terminal, and network-side device
WO2020024096A1 (zh) 一种天线切换方法及装置
WO2020255424A1 (ja) 端末
US20230239796A1 (en) Wake up signal processing method and apparatus
CN109150476A (zh) 反馈信息的输出方法、通知信息的输出方法及相关产品
US11405920B2 (en) Method and device for transmitting information
CN110169108B (zh) 一种高速数据传输降级方法、设备及系统
WO2022206740A1 (zh) 波束切换方法、装置及存储介质
WO2020255423A1 (ja) 端末
JP2024512389A (ja) 半静的ｈａｒｑ－ａｃｋコードブックの生成方法及び端末
US20240023130A1 (en) Method, apparatus and computer program
KR20220158263A (ko) Harq 피드백 방법, 단말 및 기지국
US20230354185A1 (en) Method and apparatus for selecting resource, method and apparatus for processing power saving, and device
WO2020255421A1 (ja) 端末
WO2020255422A1 (ja) 端末
WO2023280275A1 (zh) 传输方法、终端及网络侧设备
CN108432302A (zh) 功率信息发送方法、终端设备和网络设备
US20240040490A1 (en) Access control method and apparatus, communication device, and medium
WO2022029987A1 (ja) 端末及び通信方法
JP2017220761A (ja) 移動端末及び通信制御方法
CN113260029A (zh) 终端设备、网络侧设备和通信方法
EP4145871A1 (en) Signal sending method and apparatus, signal receiving method and apparatus, and storage medium
WO2022218305A1 (zh) 信息信号的更新方法、终端及网络侧设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20908739

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020908739

Country of ref document: EP

Effective date: 20220503

NENP Non-entry into the national phase

Ref country code: DE