Communication chip power control system and control method

Abstract

This invention discloses a power control system and method for a communication chip. In the power control system, the enable terminals of the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator outside the communication chip are respectively connected to the communication interface module. When the processor module detects a preset event, it controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module inside the communication chip to turn on or off. It also controls the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator to turn on or off through the communication interface module to reduce power consumption. This enables the communication chip to control the power consumption of each functional module inside the communication chip, and also controls the power consumption of the external low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator through the communication interface module. This reduces the power consumption of the communication chip and the terminal where the communication chip is located, and eliminates the need for additional resources on the terminal to control the power consumption of the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator.

Description

Technical Field

[0001] The present invention relates to the field of chip power supply technology, and in particular to a power control system and control method for communication chips. Background Technology

[0002] Communication chips are used in terminals to provide radio frequency transmission and reception functions to enable the terminal's communication functions.

[0003] Communication chips are typically connected to external active devices such as temperature-compensated crystal oscillators (TCQS), low-noise amplifiers (LNOA), and power amplifiers. Internally, communication chips contain multiple functional modules. Currently, to reduce terminal power consumption, communication chips only control the power consumption of their internal functional modules. They cannot control the power consumption of externally connected active devices such as TQS, LNOA, and power amplifiers. Additional resources on the terminal are needed to control the power consumption of these connected devices. Summary of the Invention

[0004] The purpose of this invention is to provide a power control system and method for a communication chip, so as to solve the problem that existing communication chips cannot control the power consumption of external temperature-compensated crystal oscillators, low-noise amplifiers, and power amplifiers connected to them.

[0005] To solve the above problems, the embodiments of the present invention adopt the following technical solutions:

[0006] In a first aspect, the present invention provides a power control system for a communication chip, which is applied to a communication chip connected to a low-noise amplifier, a power amplifier, and a temperature-compensated crystal oscillator. The communication chip includes a power management module and a processor module, an RF receiving module, a baseband receiving module, an RF transmitting module, a baseband transmitting module, a crystal clock processing module, and a communication interface module, which are respectively connected to the power management module. The enable terminals of the low-noise amplifier, the power amplifier, and the temperature-compensated crystal oscillator are respectively connected to the communication interface module.

[0007] The processor module is used to determine whether a preset event is detected; when a preset event is detected, it controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module in the communication chip to turn on or off according to a preset power supply strategy, and controls the low noise amplifier, power amplifier, and temperature-compensated crystal oscillator to turn on or off through the communication interface module.

[0008] In an optional embodiment of the present invention, the input terminal of the power amplifier is connected to the signal output pin of the RF transmitting module via a passive transmitting filter, the output terminal of the power amplifier is connected to the RF antenna, the enable terminal of the power amplifier is connected to the communication interface module, and the processor module is specifically used for:

[0009] Upon receiving a transmission mission, determine the on-time, off-time, and power required for the radio frequency transmission module, baseband transmission module, and power amplifier to execute the transmission command;

[0010] The module with the longest turn-on time among the radio frequency transmitting module, baseband transmitting module, and power amplifier is turned on first, and the module with the highest power among the radio frequency transmitting module, baseband transmitting module, and power amplifier is turned on last.

[0011] Upon detecting the completion of the transmission task, control the RF transmission module, the baseband transmission module, and the power amplifier module with the highest power to shut down first, and / or control the RF transmission module, the baseband transmission module, and the power amplifier module with the longest shutdown time to shut down first.

[0012] As an optional embodiment of the present invention, the input terminal of the power amplifier is connected to the signal output pin of the radio frequency transmitting module through a passive transmitting filter, the output terminal of the power amplifier is connected to the radio frequency antenna, and the enable terminal of the power amplifier is connected to the power supply terminal of the radio frequency transmitting module.

[0013] When the power management module powers on or off the radio frequency transmitting module, the power supply terminal of the radio frequency transmitting module outputs an enable or disable signal to the enable terminal of the power amplifier.

[0014] The power amplifier is used to turn on or off when the enable terminal receives an enable or disable enable signal.

[0015] In an optional embodiment of the present invention, the output terminal of the low-noise amplifier is connected to the input terminal of the radio frequency receiving module, the input terminal of the low-noise amplifier is connected to the radio frequency antenna through a passive receiving filter, the enable terminal of the low-noise amplifier is connected to the communication interface module, and the processor module is used for:

[0016] Upon receiving a receiving task, the low-noise amplifier and the radio frequency receiving module are turned on.

[0017] When the radio frequency receiving module processes and generates the intermediate frequency digital signal, the baseband receiving module is controlled to turn on;

[0018] When the completion of the receiving task is detected, a timer is started to obtain the duration of the timer, and it is determined whether the duration of the timer is greater than the first duration.

[0019] If a new receiving task is received when the timing duration is less than or equal to the first duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received.

[0020] If no new receiving task is received when the timing duration exceeds the first duration, the low-noise amplifier and the radio frequency receiving module are turned off.

[0021] Determine whether the timeout duration is greater than the second duration;

[0022] If a new receiving task is received when the timing duration is less than or equal to the second duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received.

[0023] If no new receiving task is received when the timing duration is longer than the second duration, the clock of the baseband receiving module is controlled;

[0024] Determine whether the timeout duration is greater than the third duration;

[0025] If a new receiving task is received when the timing duration is less than or equal to the third duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received.

[0026] If no new receiving task is received when the timing duration exceeds the third duration, the power management module is controlled to stop supplying power to the baseband receiving module.

[0027] As an optional embodiment of the present invention, the processor module is further configured to:

[0028] Switch the clock of the communication chip to the clock of the temperature-compensated crystal oscillator.

[0029] As an optional embodiment of the present invention, the output terminal of the low noise amplifier is connected to the input terminal of the radio frequency receiving module, the input terminal of the low noise amplifier is connected to the radio frequency antenna through a passive receiving filter, and the enable terminal of the low noise amplifier is connected to the power supply terminal of the radio frequency receiving module.

[0030] When the power management module powers on or off the RF receiving module, the power supply terminal of the RF receiving module outputs an enable or disable signal to the enable terminal of the low-noise amplifier.

[0031] The low-noise amplifier is used to turn on or off when the enable terminal receives an enable or disable enable signal.

[0032] In an optional embodiment of the present invention, the output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, the enable terminal of the temperature-compensated crystal oscillator is connected to the communication interface module, and the processor module is used for:

[0033] Upon receiving a sleep command, the communication interface module controls the temperature-compensated crystal oscillator to shut down, and also controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, crystal clock processing module, low-noise amplifier, and power amplifier to shut down.

[0034] Upon receiving a wake-up command, the temperature-compensated crystal oscillator is turned on via the communication interface module.

[0035] As an optional embodiment of the present invention, the output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, and the enable terminal of the temperature-compensated crystal oscillator is connected to the power supply terminal of the crystal clock processing module.

[0036] When the power management module powers on or off the crystal clock processing module, the power supply terminal of the crystal clock processing module outputs an enable or disable signal to the enable terminal of the temperature-compensated crystal.

[0037] The temperature-compensated crystal oscillator is used to turn on or off when the enable terminal receives an enable or disable signal.

[0038] As an optional embodiment of the present invention, the output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, and the power supply terminal of the temperature-compensated crystal oscillator is connected to the power supply terminal of the crystal clock processing module.

[0039] The power management module powers on or off the temperature-compensated crystal oscillator when it powers on or off the crystal clock processing module.

[0040] In a second aspect, the present invention provides a power control method for a communication chip, applied to the power control system for a communication chip as described in any one of the first aspects, comprising:

[0041] Determine whether a preset event has been detected;

[0042] When a preset event is detected, the radio frequency receiving module, baseband receiving module, radio frequency transmitting module, baseband transmitting module, and crystal clock processing module in the communication chip are turned on or off according to a preset power supply strategy. The low noise amplifier, power amplifier, and temperature-compensated crystal oscillator are also turned on or off through the communication interface module.

[0043] In the communication chip power control system of this invention, the enable terminals of the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator outside the communication chip are respectively connected to the communication interface module. The processor module is used to control the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module inside the communication chip to turn on or off according to the preset power supply strategy when a preset event is detected, and to control the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator to turn on or off through the communication interface module. This enables the processor module to control the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module inside the communication chip to turn off, and the external low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator to turn off when events such as no receiving task, no transmitting task, or sleep are detected, thereby reducing the power consumption of the communication chip and the terminal where the communication chip is located. Furthermore, no additional resources on the terminal are required to control the power consumption of the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator, saving terminal resources. Attached Figure Description

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0045] Figure 1 This is a schematic diagram of the structure of a communication chip power control system according to an embodiment of the present invention;

[0046] Figure 2 This is one of the structural schematic diagrams of the low-power control of the power amplifier in an embodiment of the present invention;

[0047] Figure 3 This is the second schematic diagram of the low-power control structure of the power amplifier in this embodiment of the invention;

[0048] Figure 4 This is one of the structural schematic diagrams of low-noise amplifier low-power control in an embodiment of the present invention;

[0049] Figure 5 This is the second schematic diagram of the low-noise amplifier low-power control structure in an embodiment of the present invention;

[0050] Figure 6 This is one of the structural schematic diagrams of the low-power control of the temperature-compensated crystal oscillator in an embodiment of the present invention;

[0051] Figure 7 This is the second schematic diagram of the low-power control structure of the temperature-compensated crystal oscillator in an embodiment of the present invention;

[0052] Figure 8 This is the third schematic diagram of the low-power control structure of the temperature-compensated crystal oscillator in this embodiment of the invention;

[0053] Figure 9This is a flowchart of the power control method for a communication chip in an embodiment of the present invention.

[0054] In the attached image:

[0055] 1. Communication chip; 10. Power management module; 20. Processor module; 30. Crystal clock processing module; 40. Communication interface module; 50. RF receiver module; 60. Baseband receiver module; 70. RF transmitter module; 80. Baseband transmitter module; 2. Low noise amplifier; 3. Power amplifier; 4. Temperature compensated crystal oscillator; 5. Receiver passive filter; 6. RF antenna; 7. Transmitter passive filter. Detailed Implementation

[0056] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to electrical connections; direct connections or indirect connections via an intermediate medium; or internal connections between two elements or the interaction between two elements. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0058] Figure 1 This is a schematic diagram of the structure of a communication chip power control system according to an embodiment of the present invention, as shown below. Figure 1 As shown, the communication chip power control system of this embodiment of the invention is applied to the communication chip 1 which is connected to the low-noise amplifier 2, the power amplifier 3 and the temperature-compensated crystal oscillator 4.

[0059] The communication chip 1 can be a Beidou communication chip, or other communication chips such as Bluetooth or WiFi. The communication chip 1 includes a power management module 10 and a processor module 20, an RF receiver module 50, a baseband receiver module 60, an RF transmitter module 70, a baseband transmitter module 80, a crystal clock processing module 30, and a communication interface module 40, all connected to the power management module 10. The power management module 10 can be a circuit located inside the communication chip 1 that supplies power to the other modules. The input terminal of the power management module 10 is connected to an external power source to supply power to the processor module 20, RF receiver module 50, baseband receiver module 60, RF transmitter module 70, baseband transmitter module 80, crystal clock processing module 30, and communication interface module 40.

[0060] The enable terminals of the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 are used to control the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 to turn on or off. The enable terminals of the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 are respectively connected to the communication interface module 40. The communication interface module 40 can be a GPIO interface exposed outside the communication chip 1. The communication interface module 40 can be connected to the processor module 20, so that the processor module 20 can control the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 through the communication interface module 40. In addition, the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 can be powered by an external power supply or by the power management module 10 inside the communication chip 1.

[0061] In this embodiment of the invention, the processor module 20 is used to control the RF receiving module 50, baseband receiving module 60, RF transmitting module 70, baseband transmitting module 80, and crystal clock processing module 30 within the communication chip 1 to turn on or off according to a preset power supply strategy when a preset event is detected. It also controls the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 to turn on or off through the communication interface module 40. The preset event can be an event that triggers low-power control. For example, the preset event could be not receiving a transmission task, not receiving a reception task, receiving a transmission task, receiving a reception task, receiving a sleep command, etc. When different preset events are detected, different modules are controlled to turn on or off according to different strategies, so that the corresponding module is turned off when it is not needed, thereby reducing the power consumption of the communication chip 1, low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4. This achieves the goal of reducing the overall power consumption of the terminal where the communication chip 1 is located. In other words, the communication chip 1 can control the power consumption of the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4 external to the communication chip 1, without requiring additional resources from the terminal to control the power consumption of the low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal 4.

[0062] To more clearly illustrate the low-power control of the communication chip 1 on the external low-noise amplifier 2, power amplifier 3, and temperature-compensated crystal oscillator 4 in the embodiments of the present invention, the following description is provided in conjunction with the accompanying drawings.

[0063] like Figure 2 As shown, in one embodiment, the input terminal of the power amplifier 3 is connected to the signal output pin of the RF transmitting module 70 via the passive transmitting filter 7, the output terminal of the power amplifier 3 is connected to the RF antenna 6, and the enable terminal EN of the power amplifier 3 is connected to the communication interface module 40. The communication interface module 40 can be the GPIO of the communication chip 1 exposed externally. Figure 2 In the communication interface module 40, there is an exposed pin PAD1. The enable terminal EN of the power amplifier 3 is connected to the pin PAD1 of the communication interface module 40. When the processor module 20 receives a transmission task, it determines the turn-on duration, turn-off duration, and power required for the RF transmission module 70, the baseband transmission module 80, and the power amplifier 3 to execute the transmission command. It controls the module with the longest turn-on duration among the RF transmission module 70, the baseband transmission module 80, and the power amplifier 3 to turn on first, and controls the module with the highest power among the RF transmission module 70, the baseband transmission module 80, and the power amplifier 3 to turn on last. When the transmission task is detected to be finished, it controls the module with the highest power among the RF transmission module 70, the baseband transmission module 80, and the power amplifier 3 to turn off first, and / or controls the module with the longest turn-off duration among the RF transmission module 70, the baseband transmission module 80, and the power amplifier 3 to turn off first.

[0064] Specifically, the processor module 20 can output an enable signal to the enable terminal of the power amplifier 3 through the communication interface module 40 to enable or disable the power amplifier 3. It can also control the power management module 10 to enable or disable the radio frequency transmitter module 70 and the baseband transmitter module 80.

[0065] In this embodiment, through the communication interface module 40, the processor module 20 can control the RF transmitter module 70, the baseband transmitter module 80, and the power amplifier 3 to start first during the execution of the transmission task, and control the RF transmitter module 70, the baseband transmitter module 80, and the power amplifier 3 to start last. This ensures that the module with the shortest total start time and the highest power consumption starts last. After the transmission task is completed, the module with the highest power and the longest shutdown time among the RF transmitter module 70, the baseband transmitter module 80, and the power amplifier 3 is controlled to shut down first, thereby reducing the total power consumption during the execution of the transmission task.

[0066] like Figure 3As shown, in another embodiment, the enable terminal EN of the power amplifier 3 is connected to the pin PAD2 connected to the power supply terminal of the RF transmitter module 70. The pin PAD2 is the pin of the external filter capacitor on the communication chip 1 that is connected to the power supply terminal of the power management module 10 and the RF transmitter module 70. The power supply terminal of the RF transmitter module 70 is the port on the RF transmitter module 70 that is connected to the power management module 10.

[0067] like Figure 3 As shown, when the power management module 10 powers on or off the RF transmitter module 70, the power supply terminal of the RF transmitter module 70 outputs an enable signal to the enable terminal EN of the power amplifier 3 through pin PAD2. The power amplifier 3 turns on or off when the enable terminal EN receives the enable signal. This realizes that when the power management module 10 powers on the RF transmitter module 70 upon receiving a transmission task, it outputs an enable signal to trigger the power amplifier 3 to turn on, and when the power management module 10 powers off the RF transmitter module 70 after the transmission task is completed, it outputs a disable enable signal to trigger the power amplifier 3 to turn off. This realizes the synchronous turning on and off of the RF transmitter module 70 and the power amplifier 3 to reduce power consumption. Furthermore, the enable terminal EN of the power amplifier 3 is connected to the external pin PAD2 of the power supply terminal of the RF transmitter module 70. This pin PAD2 is the pin of an external filter capacitor, which occupies additional pin resources of the communication chip 1.

[0068] like Figure 4 As shown, in another embodiment, the output of the low-noise amplifier 2 is connected to the input of the radio frequency receiver module 50. The input of the low-noise amplifier 2 is connected to the radio frequency antenna 6 through the passive receiver filter 5. The enable terminal EN of the low-noise amplifier 2 is connected to the communication interface module 40. Specifically, the enable terminal EN of the low-noise amplifier 2 is connected to the PAD1 pin of the communication interface module 40 exposed outside the communication chip 1. The processor module 20 can execute the following control steps:

[0069] S1. When a receiving task is received, control the low-noise amplifier 2 and the radio frequency receiving module 50 to turn on.

[0070] For example, an enable signal is sent from pin PAD1 of the communication interface module 40 to the enable terminal EN of the low noise amplifier 2, thereby enabling the low noise amplifier 2 and controlling the power management module 10 to power on the radio frequency receiver module 50, thereby enabling the radio frequency receiver module 50.

[0071] S2. When the RF receiving module 50 processes and generates the intermediate frequency digital signal, the baseband receiving module 60 is turned on.

[0072] After the low-noise amplifier 2 and the radio frequency receiving module 50 are turned on, the radio frequency receiving module 50 processes the received radio frequency signal to generate an intermediate frequency digital signal and outputs it to the baseband receiving module 60. The processor module 20 can control the power management module 10 to power on the baseband receiving module 60 so that the baseband receiving module 60 is turned on.

[0073] S3. When the receiving task is detected to be completed, start the timer to obtain the time duration, and determine whether the time duration is greater than the first duration T1. If yes, execute S5; otherwise, execute S4.

[0074] S4. If a new receiving task is received when the timing duration is less than or equal to the first duration T1, the timer is reset and the process returns to S1.

[0075] If no new task is received within a timeout period of less than the first timeout period T1, continue waiting until the timeout period exceeds the first timeout period T1.

[0076] S5. If no new receiving task is received when the timing duration is longer than the first duration T1, control the low noise amplifier 2 and the radio frequency receiving module 50 to shut down, and execute S6.

[0077] For example, the communication interface module 40 sends a shutdown enable signal to the enable terminal EN of the low noise amplifier 2 through the PAD1 pin, thereby turning off the low noise amplifier 2, and controls the power management module 10 to power down the radio frequency receiver module 50, thereby turning off the radio frequency receiver module 50.

[0078] After the low-noise amplifier 2 and the radio frequency receiver module 50 are turned off, the timer continues to count and S6 is executed.

[0079] S6. Determine if the timing duration is greater than the second duration T2. ​​If yes, execute S8; otherwise, execute S7.

[0080] S7. If a new receiving task is received when the timing duration is less than or equal to the second duration T2, the timer is reset and the process returns to S1.

[0081] S8. If no new receiving task is received when the timing duration is longer than the second duration T2, the clock of the baseband receiving module 60 is turned off.

[0082] Specifically, the clock of the baseband receiver module 60 is turned off, the power supply to the baseband receiver module 60 is maintained to facilitate the quick restoration of the function of the baseband receiver module 60, and the timer is controlled to continue timing and execute S9. If a new receiving task is received after the timing duration is longer than the second duration T2, the process returns to S1.

[0083] S9. Determine if the timing duration is greater than the third duration T3. If yes, execute S11; otherwise, execute S10.

[0084] S10. If a new receiving task is received when the timing duration is less than or equal to the third duration T3, the timer is reset and the process returns to S1.

[0085] S11. If no new receiving task is received within a time period longer than the third time period T3, the power management module 10 will stop supplying power to the baseband receiving module 60.

[0086] That is, the power management module 10 stops supplying power to the baseband receiver module 60, switches the communication chip 1 to operate on the clock of the temperature-compensated crystal oscillator 4, shuts down the clock of the processor module 20, and retains the interrupt response function.

[0087] This embodiment controls the opening and closing of the low-noise amplifier 2, the radio frequency receiving module 50, and the baseband receiving module 60 by controlling the duration of the timer and the execution status of the receiving task. This reduces the power consumption during the radio frequency signal reception process and avoids the frequent opening and closing of the low-noise amplifier 2, the radio frequency receiving module 50, and the baseband receiving module 60.

[0088] like Figure 5 As shown, in another embodiment, the output terminal of the low-noise amplifier 2 is connected to the input terminal of the radio frequency receiving module 50. The input terminal of the low-noise amplifier 2 is connected to the radio frequency antenna 6 through the passive receiving filter 5. The enable terminal EN of the low-noise amplifier 2 is connected to the power supply terminal of the radio frequency receiving module 50. Specifically, the power supply terminal of the radio frequency receiving module 50 is connected to the enable terminal EN of the low-noise amplifier 2 through the pin PAD2 of the communication chip 1 with the external filter capacitor. When the power management module 10 powers on or off the radio frequency receiving module 50, the power supply terminal of the radio frequency receiving module 50 outputs an enable or disable signal to the enable terminal EN of the low-noise amplifier 2 through the pin PAD2. The low-noise amplifier 2 is used to turn on or off when the enable terminal EN receives the enable or disable signal, realizing the synchronous turn-on and turn-off of the radio frequency receiving module 50 and the low-noise amplifier 2. This allows the communication chip 1 to control the turn-on or turn-off of the radio frequency receiving module 50 and the low-noise amplifier 2 to achieve low-power control, and also to control the turn-on or turn-off of the low-noise amplifier 2 through the pin PAD2 of the shared external filter capacitor, saving the pin resources of the communication chip 1.

[0089] like Figure 6As shown, in one embodiment, the output terminal of the temperature-compensated crystal oscillator 4 is connected to the crystal clock processing module 30, and the enable terminal EN of the temperature-compensated crystal oscillator 4 is connected to the communication interface module 40. The communication interface module 40 includes an exposed pin PAD1. The enable terminal EN of the temperature-compensated crystal oscillator 4 is connected to the pin PAD1. When the processor module 20 receives a sleep command, it controls the temperature-compensated crystal oscillator 4 to turn off through the pin PAD1 of the communication interface module 40, and controls the RF receiving module 50, the baseband receiving module 60, the RF transmitting module 70, the baseband transmitting module 80, the crystal clock processing module 30, the low-noise amplifier 2, and the power amplifier 3 to turn off, so as to reduce power consumption. When it receives a wake-up command, it controls the temperature-compensated crystal oscillator 4 to turn on through the pin PAD1 of the communication interface module 40.

[0090] Specifically, when the processor module 20 receives a sleep command, it can also save the currently tracked communication beam information and time information to the normally open area memory, and shut down other functional modules except for the power management module 10 which provides low-power control and wake-up functions. When it receives a wake-up command, it turns on the power and clock of the relevant modules required for the receiving function, such as turning on the power and clock of the baseband receiving module 60, the radio frequency receiving module 50, and the temperature-compensated crystal oscillator 4. In order to save power consumption, the power of the modules related to the transmission function is only turned on when a transmission task is received.

[0091] like Figure 7 As shown, in another embodiment, the output terminal of the temperature-compensated crystal oscillator 4 is connected to the crystal clock processing module 30, and the enable terminal EN of the temperature-compensated crystal oscillator 4 is connected to the power supply terminal of the crystal clock processing module 30. Specifically, the enable terminal EN of the temperature-compensated crystal oscillator 4 is connected to the power supply terminal of the crystal clock processing module 30, and the external filter capacitor pin PAD2 is connected to it. When the power management module 10 powers on or off the crystal clock processing module 30, the power supply terminal of the crystal clock processing module 30 outputs an enable or disable signal to the enable terminal EN of the temperature-compensated crystal oscillator 4 through the pin PAD2, so that the temperature-compensated crystal oscillator 4 turns on or off when the enable terminal EN receives the enable or disable signal. This realizes the synchronous turning on and off of the crystal clock processing module 30 and the temperature-compensated crystal oscillator 4, so that the communication chip 1 can control the crystal clock processing module 30 and the temperature-compensated crystal oscillator 4 to turn on or off to achieve low power consumption control, and also control the temperature-compensated crystal oscillator 4 to turn on or off through the shared external filter capacitor pin PAD2, saving the pin resources of the communication chip 1.

[0092] like Figure 8As shown, in another embodiment, the output terminal of the temperature-compensated crystal oscillator 4 is connected to the crystal clock processing module 30, and the power supply terminal VIN of the temperature-compensated crystal oscillator 4 is connected to the power supply terminal of the crystal clock processing module 30. Specifically, the power supply terminal VIN of the temperature-compensated crystal oscillator 4 is connected to the PAD2 pin of the external filter capacitor connected to the power supply terminal of the crystal clock processing module 30, so that the temperature-compensated crystal oscillator 4 obtains power from the power supply branch of the power management module 10 to the crystal clock processing module 30. When the power management module 10 powers on or off the crystal clock processing module 30, through... Pin PAD2 powers on or off the temperature-compensated crystal oscillator 4, thereby enabling the crystal clock processing module 30 and the temperature-compensated crystal oscillator 4 to be turned on and off synchronously. This allows the communication chip 1 to control the crystal clock processing module 30 and the temperature-compensated crystal oscillator 4 to turn on or off for low power consumption control, and also to control the temperature-compensated crystal oscillator 4 to turn on or off through pin PAD2 which shares an external filter capacitor. This saves pin resources of the communication chip 1 and is suitable for the power management module 10 inside the communication chip 1 to power the temperature-compensated crystal oscillator 4, without the need to set up a separate external power supply for the temperature-compensated crystal oscillator 4.

[0093] like Figure 9 As shown, this embodiment of the invention also provides a communication chip power control method, which is applied to the communication chip power control system of this embodiment, such as... Figure 1 As shown, the communication chip power control system is applied to the communication chip 1, which is connected to the low-noise amplifier 2, the power amplifier 3, and the temperature-compensated crystal oscillator 4. The communication chip 1 includes a power management module 10 and processor module 20, RF receiver module 50, baseband receiver module 60, RF transmitter module 70, baseband transmitter module 80, crystal clock processing module 30, and communication interface module 40, all connected to the power management module 10. The power management module 10 can be a circuit located inside the communication chip 1 that supplies power to other modules. The input terminal of the power management module 10 is connected to an external power source to supply power to the processor module 20, RF receiver module 50, baseband receiver module 60, RF transmitter module 70, baseband transmitter module 80, crystal clock processing module 30, and communication interface module 40. The communication chip power control method specifically includes the following steps:

[0094] S101. Determine whether a preset event has been detected.

[0095] S102. When a preset event is detected, the radio frequency receiving module, baseband receiving module, radio frequency transmitting module, baseband transmitting module, and crystal clock processing module in the communication chip are turned on or off according to the preset power supply strategy, and the low noise amplifier, power amplifier and temperature compensated crystal are turned on or off through the communication interface module.

[0096] In one embodiment, the preset event may be receiving a launch mission, and S102 may specifically include the following sub-steps:

[0097] S1021. Upon receiving a transmission mission, determine the turn-on duration, turn-off duration, and power required for the RF transmission module, baseband transmission module, and power amplifier to execute the transmission command.

[0098] S1022, the module with the longest turn-on time among the control RF transmitter module, baseband transmitter module, and power amplifier is turned on first, and the module with the highest power among the control RF transmitter module, baseband transmitter module, and power amplifier is turned on last.

[0099] S1023. When the completion of the transmission mission is detected, control the RF transmission module, the baseband transmission module and the power amplifier with the highest power to shut down first, and / or control the RF transmission module, the baseband transmission module and the power amplifier with the longest shutdown time to shut down first.

[0100] In another embodiment, the preset event may be receiving a receiving task, and S102 may specifically include the following sub-steps:

[0101] S1. When a receiving task is received, control the low-noise amplifier 2 and the radio frequency receiving module 50 to turn on.

[0102] S2. When the RF receiving module 50 processes and generates the intermediate frequency digital signal, the baseband receiving module 60 is turned on.

[0103] S3. When the receiving task is detected to be completed, start the timer to obtain the time duration, and determine whether the time duration is greater than the first duration T1. If yes, execute S5; otherwise, execute S4.

[0104] S4. If a new receiving task is received when the timing duration is less than or equal to the first duration T1, the timer is reset and the process returns to S1.

[0105] S5. If no new receiving task is received when the timing duration is longer than the first duration T1, control the low noise amplifier 2 and the radio frequency receiving module 50 to shut down, and execute S6.

[0106] S6. Determine if the timing duration is greater than the second duration T2. ​​If yes, execute S8; otherwise, execute S7.

[0107] S7. If a new receiving task is received when the timing duration is less than or equal to the second duration T2, the control timer is cleared and the process returns to S1.

[0108] S8. If no new receiving task is received when the timing duration is longer than the second duration T2, the clock of the baseband receiving module 60 is turned off.

[0109] S9. Determine if the timing duration is greater than the third duration T3. If yes, execute S11; otherwise, execute S10.

[0110] S10. If a new receiving task is received when the timing duration is less than or equal to the third duration T3, the timer is reset and the process returns to S1.

[0111] S11. If no new receiving task is received within a time period longer than the third time period T3, the power management module 10 will stop supplying power to the baseband receiving module 60.

[0112] In yet another embodiment, the preset event may be receiving a sleep command, and S102 may specifically include the following sub-steps:

[0113] S1024. Upon receiving a sleep command, control the temperature-compensated crystal oscillator to shut down via the communication interface module, and control the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, crystal oscillator clock processing module, low-noise amplifier, and power amplifier to shut down.

[0114] S1025. Upon receiving a wake-up command, the temperature-compensated crystal oscillator is turned on via the communication interface module.

[0115] The power control method for the communication chip in this embodiment of the invention is described in a relatively simple way. For details, please refer to the power control system for the communication chip, which will not be described in detail here.

[0116] The communication chip power control method of this invention is applied to a communication chip power control system. In this system, the enable terminals of the low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator (TCQSO) external to the communication chip are connected to a communication interface module. When a preset event is detected, the system controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module within the communication chip to turn on or off according to a preset power supply strategy. It also controls the low-noise amplifier, power amplifier, and TQSO to turn on or off through the communication interface module. This achieves the following: when preset events such as no receiving task, no transmitting task, or sleep mode are detected, the system can control the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module within the communication chip to turn off, and control the external low-noise amplifier, power amplifier, and TQSO to turn off through the communication interface module. This reduces the power consumption of the communication chip and the terminal where the chip is located, and eliminates the need for additional resources on the terminal to control the power consumption of the low-noise amplifier, power amplifier, and TQSO, thus saving terminal resources.

[0117] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A power control system for a communication chip, characterized in that, A communication chip is used in connection with a low-noise amplifier, a power amplifier, and a temperature-compensated crystal oscillator. The communication chip includes a power management module and a processor module, an RF receiving module, a baseband receiving module, an RF transmitting module, a baseband transmitting module, a crystal clock processing module, and a communication interface module, which are respectively connected to the power management module. The enable terminals of the low-noise amplifier, the power amplifier, and the temperature-compensated crystal oscillator are respectively connected to the communication interface module. The processor module is used to determine whether a preset event is detected. When a preset event is detected, it controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module in the communication chip to turn on or off according to a preset power supply strategy. It also controls the low noise amplifier, power amplifier, and temperature-compensated crystal oscillator to turn on or off through the communication interface module. The output terminal of the low-noise amplifier is connected to the input terminal of the RF receiving module. The input terminal of the low-noise amplifier is connected to the RF antenna through a passive receiving filter. The enable terminal of the low-noise amplifier is connected to the communication interface module. The processor module is used for: Upon receiving a receiving task, the low-noise amplifier and the radio frequency receiving module are turned on. When the radio frequency receiving module processes and generates the intermediate frequency digital signal, the baseband receiving module is controlled to turn on; When the completion of the receiving task is detected, a timer is started to obtain the duration of the timer, and it is determined whether the duration of the timer is greater than the first duration. If a new receiving task is received when the timing duration is less than or equal to the first duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration exceeds the first duration, the low-noise amplifier and the radio frequency receiving module are turned off. Determine whether the timeout duration is greater than the second duration; If a new receiving task is received when the timing duration is less than or equal to the second duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration is longer than the second duration, the clock of the baseband receiving module is controlled; Determine whether the timeout duration is greater than the third duration; If a new receiving task is received when the timing duration is less than or equal to the third duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration exceeds the third duration, the power management module is controlled to stop supplying power to the baseband receiving module.

2. The communication chip power control system according to claim 1, characterized in that, The input terminal of the power amplifier is connected to the signal output pin of the RF transmitting module via a passive transmitting filter; the output terminal of the power amplifier is connected to the RF antenna; the enable terminal of the power amplifier is connected to the communication interface module; and the processor module is specifically used for: Upon receiving a transmission mission, determine the turn-on duration, turn-off duration, and power required for the radio frequency transmission module, baseband transmission module, and power amplifier to execute the transmission command; The module with the longest turn-on time among the radio frequency transmitting module, baseband transmitting module, and power amplifier is turned on first, and the module with the highest power among the radio frequency transmitting module, baseband transmitting module, and power amplifier is turned on last. Upon detecting the completion of the transmission task, control the RF transmission module, the baseband transmission module, and the power amplifier module with the highest power to shut down first, and / or control the RF transmission module, the baseband transmission module, and the power amplifier module with the longest shutdown time to shut down first.

3. The communication chip power control system according to claim 1, characterized in that, The input terminal of the power amplifier is connected to the signal output pin of the radio frequency transmitting module through a passive transmitting filter, the output terminal of the power amplifier is connected to the radio frequency antenna, and the enable terminal of the power amplifier is connected to the power supply terminal of the radio frequency transmitting module. When the power management module powers on or off the radio frequency transmitting module, the power supply terminal of the radio frequency transmitting module outputs an enable or disable signal to the enable terminal of the power amplifier. The power amplifier is used to turn on or off when the enable terminal receives an enable or disable enable signal.

4. The communication chip power control system according to claim 1, characterized in that, The processor module is also used to switch the clock of the communication chip to the clock of the temperature-compensated crystal oscillator.

5. The communication chip power control system according to claim 1 or 4, characterized in that, The output terminal of the low-noise amplifier is connected to the input terminal of the radio frequency receiving module. The input terminal of the low-noise amplifier is connected to the radio frequency antenna through a passive receiving filter. The enable terminal of the low-noise amplifier is connected to the power supply terminal of the radio frequency receiving module. When the power management module powers on or off the RF receiving module, the power supply terminal of the RF receiving module outputs an enable or disable signal to the enable terminal of the low-noise amplifier. The low-noise amplifier is used to turn on or off when the enable terminal receives an enable or disable enable signal.

6. The communication chip power control system according to claim 1, characterized in that, The output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, and the enable terminal of the temperature-compensated crystal oscillator is connected to the communication interface module. The processor module is used for: Upon receiving a sleep command, the communication interface module controls the temperature-compensated crystal oscillator to shut down, and also controls the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, crystal clock processing module, low-noise amplifier, and power amplifier to shut down. Upon receiving a wake-up command, the temperature-compensated crystal oscillator is turned on via the communication interface module.

7. The communication chip power control system according to claim 6, characterized in that, The output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, and the enable terminal of the temperature-compensated crystal oscillator is connected to the power supply terminal of the crystal clock processing module. When the power management module powers on or off the crystal clock processing module, the power supply terminal of the crystal clock processing module outputs an enable or disable signal to the enable terminal of the temperature-compensated crystal. The temperature-compensated crystal oscillator is used to turn on or off when the enable terminal receives an enable or disable signal.

8. The communication chip power control system according to claim 1, characterized in that, The output terminal of the temperature-compensated crystal oscillator is connected to the crystal clock processing module, and the power supply terminal of the temperature-compensated crystal oscillator is connected to the power supply terminal of the crystal clock processing module. The power management module powers on or off the temperature-compensated crystal oscillator when it powers on or off the crystal clock processing module.

9. A power control method for a communication chip, applied to the power control system for a communication chip according to any one of claims 1-8, comprising: Determine whether a preset event has been detected; When a preset event is detected, the radio frequency receiving module, baseband receiving module, radio frequency transmitting module, baseband transmitting module, and crystal clock processing module in the communication chip are turned on or off according to a preset power supply strategy, and the low noise amplifier, power amplifier and temperature-compensated crystal oscillator are turned on or off through the communication interface module. The output terminal of the low-noise amplifier is connected to the input terminal of the RF receiving module. The input terminal of the low-noise amplifier is connected to the RF antenna through a passive receiving filter. The enable terminal of the low-noise amplifier is connected to the communication interface module. When a preset event is detected, the RF receiving module, baseband receiving module, RF transmitting module, baseband transmitting module, and crystal clock processing module within the communication chip are controlled to turn on or off according to a preset power supply strategy. The low-noise amplifier, power amplifier, and temperature-compensated crystal oscillator are also controlled to turn on or off through the communication interface module. Upon receiving a receiving task, the low-noise amplifier and the radio frequency receiving module are turned on. When the radio frequency receiving module processes and generates the intermediate frequency digital signal, the baseband receiving module is controlled to turn on; When the completion of the receiving task is detected, a timer is started to obtain the duration of the timer, and it is determined whether the duration of the timer is greater than the first duration. If a new receiving task is received when the timing duration is less than or equal to the first duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration exceeds the first duration, the low-noise amplifier and the radio frequency receiving module are turned off. Determine whether the timeout duration is greater than the second duration; If a new receiving task is received when the timing duration is less than or equal to the second duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration is longer than the second duration, the clock of the baseband receiving module is controlled; Determine whether the timeout duration is greater than the third duration; If a new receiving task is received when the timing duration is less than or equal to the third duration, the timer is reset to zero, and the process returns to the step of controlling the low-noise amplifier and the radio frequency receiving module to be turned on when the receiving task is received. If no new receiving task is received when the timing duration exceeds the third duration, the power management module is controlled to stop supplying power to the baseband receiving module.

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