WO2019157703A1

WO2019157703A1 - Output power adjustment method and related product

Info

Publication number: WO2019157703A1
Application number: PCT/CN2018/076828
Authority: WO
Inventors: 唐海
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-02-14
Filing date: 2018-02-14
Publication date: 2019-08-22
Also published as: CN111373706B; CN111373706A

Abstract

An output power adjustment method and related product, comprising: a terminal starting a self-calibration process of a power amplifier (PA) in an uplink calibration time window to obtain a pre-distortion calibration file, the pre-distortion calibration file being used to determine a high transmission power after a pre-distortion, and the terminal being in a connected state. The described method is beneficial to obtaining a higher linear output power in real time and achieving the goals of improving PA linearity and enhancing uplink coverage.

Description

Output power adjustment method and related products

Technical field

The present application relates to the field of communications technologies, and in particular, to an output power adjustment method and related products.

Background technique

The state of the terminal in the network includes the idle state and the connected state. When the terminal is in the connected state, in addition to the cell edge scenario, if a large amount of data needs to be sent, a higher transmit power is also required, which is transmitted to the terminal. Power requirements.

The performance of the power amplifier (PA) of the millimeter wave terminal is greatly affected by the external environment and the thermal noise of the terminal itself, so that the PA linearization improvement technology such as predistortion in the low frequency band cannot be directly applied, so that the millimeter wave terminal linearly emits. Low power and limited uplink coverage.

Summary of the invention

The embodiment of the present application provides an output power adjustment method and related products, which are beneficial to obtaining higher linear output power in real time, thereby improving the PA linearity and improving the uplink coverage.

In a first aspect, an embodiment of the present application provides an output power adjustment method, which is applied to a terminal, where the method includes:

The self-calibration process of the power amplifier PA is initiated within the upstream calibration time window to obtain a pre-distortion calibration file for determining the high transmit power after pre-distortion, the terminal being in a connected state.

In a second aspect, an embodiment of the present application provides an output power adjustment method, which is applied to a network device, where the method includes:

Receiving uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, where the pre-distorted high transmit power is determined by the terminal calling a pre-distortion calibration file, the pre-distortion calibration The file is obtained by the terminal starting a self-calibration process of the power amplifier PA in an uplink calibration time window, the terminal is in a connected state, and the first uplink time slot is an uplink other than the uplink calibration time window. Gap.

In a third aspect, an embodiment of the present application provides a terminal, where the terminal has a function of implementing a behavior of a terminal in the foregoing method design. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the terminal includes a processor configured to support the terminal in performing the corresponding functions of the above methods. Further, the terminal may further include a transceiver for supporting communication between the terminal and the network device. Further, the terminal may further include a memory for coupling with the processor, which stores program instructions and data necessary for the terminal.

In a fourth aspect, an embodiment of the present application provides a network device, where the network device has a function of implementing behavior of a first network device in the foregoing method design. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to the functions described above. In one possible design, the network device includes a processor configured to support the network device to perform corresponding functions in the methods described above. Further, the network device may further include a transceiver for supporting communication between the network device and the terminal. Further, the network device can also include a memory for coupling with the processor that holds program instructions and data necessary for the network device.

In a fifth aspect, an embodiment of the present application provides a network device, including a processor, a memory, a transceiver, and one or more programs, where the one or more programs are stored in the memory, and are configured by The processor executes, the program comprising instructions for performing the steps in any of the methods of the first aspect of the embodiments of the present application.

In a sixth aspect, an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory, and configured by the The processor executes, the program comprising instructions for performing the steps in any of the methods of the second aspect of the embodiments of the present application.

In a seventh aspect, the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application. Some or all of the steps described in any of the methods of the first aspect.

In an eighth aspect, the embodiment of the present application provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute as implemented in the present application. Some or all of the steps described in any of the methods of the second aspect.

In a ninth aspect, the embodiment of the present application provides a computer program product, where the computer program product includes a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause the computer to execute Apply some or all of the steps described in any of the methods of the first aspect of the embodiments. The computer program product can be a software installation package.

In a tenth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to execute Apply some or all of the steps described in any of the methods of the second aspect of the embodiments. The computer program product can be a software installation package.

It can be seen that, in the embodiment of the present application, when the terminal is in the connected state, the self-calibration process of the power amplifier PA can be started in the uplink calibration time window to obtain a pre-distortion calibration file, which is used to determine the height after the pre-distortion. Transmit power. It can be seen that when the terminal is in the connected state, the self-calibration process of the PA can be started in real time in the uplink calibration time window, and a pre-distortion calibration file adapted to the current scene environment condition is dynamically generated, so that the terminal can determine the pre-distortion according to the dynamic pre-distortion calibration file. After the high transmit power, and in the current scenario, the uplink data transmission is performed according to the high transmit power, which is beneficial to the terminal to obtain higher linear output power in real time, thereby improving the PA linearity and improving the uplink coverage.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The drawings to be used in the embodiments or the description of the prior art will be briefly described below.

1A is a network architecture diagram of a possible communication system according to an embodiment of the present application;

1B is a diagram showing an example of a predistortion structure provided by an embodiment of the present application;

2A is a schematic flowchart of an output power adjustment method according to an embodiment of the present application;

2B is a diagram showing an example of a structure of a self-calibration period of a PA according to an embodiment of the present application;

3 is a schematic flowchart of an output power adjustment method according to an embodiment of the present application;

4 is a schematic flowchart of an output power adjustment method according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a network device according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

By way of example, FIG. 1A illustrates a wireless communication system to which the present application relates. The wireless communication system 100 can operate in a high frequency band, is not limited to a Long Term Evolution (LTE) system, and can be a 5th generation (5G) system and a new air interface (NR) in the future. System, machine to machine (Machine to Machine, M2M) system. The wireless communication system 100 can include one or more network devices 101, one or more terminals 103, and a core network device 105. The network device 101 can be a base station, and the base station can be used for communicating with one or more terminals, and can also be used for communicating with one or more base stations having partial terminal functions (such as a macro base station and a micro base station). The base station may be a Base Transceiver Station (BTS) in a Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or may be an evolved base station in an LTE system (Evolutional Node B). , eNB), and base stations in 5G systems, new air interface (NR) systems. In addition, the base station may also be an Access Point (AP), a TransNode (Trans TRP), a Central Unit (CU), or other network entity, and may include some or all of the functions of the above network entities. . The core network device 105 includes an Access and Mobility Management Function (AMF) entity, a User Plane Function (UPF) entity, and a Session Management Function (SMF). . Terminals 103 may be distributed throughout wireless communication system 100, either stationary or mobile. In some embodiments of the present application, the terminal 103 may be a mobile device (such as a smart phone), a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, and a mobile client. and many more.

It should be noted that the wireless communication system 100 shown in FIG. 1A is only for the purpose of more clearly explaining the technical solutions of the present application, and does not constitute a limitation of the present application. Those skilled in the art may know that with the evolution of the network architecture and new services. The appearance of the scenario, the technical solution provided by the present application is equally applicable to similar technical problems.

The related art related to the present application will be described below.

Predistortion is a commonly used low frequency PA calibration method. The basic predistortion structure is shown in Figure 1B. The low-frequency PA characteristics are stable and basically do not change greatly with external factors. Therefore, the PA pre-distortion calibration file is generally obtained in the laboratory during the terminal production design phase, and written into the terminal storage unit and used in the user's actual use. Directly call to improve linearity and increase output power.

Assuming that the gain function of the predistorter is D(f, A) and the gain function of PA is H(f, A), the overall gain function can be expressed by:

H(f,A): D(f,A)x P(f,A)=constant C

But for millimeter-wave terminals, the situation is different. Due to the high frequency band of the millimeter wave PA, the PA gain function H(f, A) will change greatly with external thermal noise, phase noise, interference signal, temperature, etc., and the static predistortion scheme used in the low frequency band cannot be directly applied to the millimeter. Wave terminal, we need to study how to dynamically adjust the predistortion algorithm to adapt to changes in PA performance.

In view of the above problems, the following embodiments are provided in the embodiments of the present application, and are described in detail below with reference to the accompanying drawings.

Referring to FIG. 2A, FIG. 2A illustrates an output power adjustment method according to an embodiment of the present application, which is applied to the foregoing example communication system, and the method includes:

In section 201, the terminal initiates a self-calibration process of the power amplifier PA in an uplink calibration time window to obtain a predistortion calibration file for determining a high distortion power after predistortion, and the terminal is connected. state.

The terminal includes a single transmit link millimeter wave terminal.

For example, an example distribution diagram of an uplink calibration time window, as shown in FIG. 2B, wherein each of the periods 0 and 1 includes a first uplink time slot and a second time slot, respectively, and the first uplink time slot is used. In the uplink data transmission, the second time slot is an uplink calibration time window, which is used for the uplink self-calibration process of the PA. In the uplink calibration time window, the terminal is in an uplink self-calibration state, and uplink data transmission cannot be performed.

It can be seen that, in the embodiment of the present application, when the terminal is in the connected state, the self-calibration process of the power amplifier PA can be started in the uplink calibration time window to obtain a pre-distortion calibration file, which is used to determine the pre-distortion. High transmit power. It can be seen that when the terminal is in the connected state, the self-calibration process of the PA can be started in real time in the uplink calibration time window, and a pre-distortion calibration file adapted to the current scene environment condition is dynamically generated, so that the terminal can determine the pre-distortion according to the dynamic pre-distortion calibration file. After the high transmit power, and in the current scenario, the uplink data transmission is performed according to the high transmit power, which is beneficial to the terminal to obtain higher linear output power in real time, thereby improving the PA linearity and improving the uplink coverage.

In a possible example, the terminal starts the self-calibration process of the power amplifier PA to obtain a pre-distortion calibration file, including: the terminal gradually increases the input power of the PA to a target maximum transmit power according to a preset step size. The process of recording the output power amplitude and the output power phase of the PA to obtain a first correspondence relationship and a second correspondence relationship, where the first correspondence relationship is a relationship between an output power amplitude and an input power amplitude, and the second relationship The correspondence relationship is a relationship of the output power phase with the input power amplitude; and generating a predistortion calibration file according to the first correspondence relationship and the second correspondence relationship.

The preset step size may be, for example, 0.5 dbm, 1 dbm, etc., and the value of the target maximum transmit power may be, for example, 28 dbm, 31 dbm, etc., and may be an empirical value, which is not limited herein. The specific configuration of the first correspondence relationship and the second correspondence relationship may be, for example, a variation curve, which is not limited herein.

In a specific implementation, the terminal may synchronously record the output power amplitude and the output power phase of the PA by controlling the input power of the PA from a preset initial value and gradually increasing to a target maximum transmit power according to a preset step size. The output is output with the input AM/AM (output amplitude as a function of input amplitude) and AM/PM (output phase as a function of input amplitude).

It can be seen that in this example, the terminal performs AM/AM and AM/PM calibration on a power region exceeding its own linear output power range in a certain step size, and achieves the purpose of extending the linear power output range of the terminal by calibration.

In a possible example, the terminal starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, the method further includes: the terminal calling the pre-distortion calibration file to determine Decoding the high transmit power; performing data transmission in the first uplink time slot according to the pre-distorted high transmit power, wherein the first uplink time slot is an uplink time slot except the uplink calibration time window .

It can be seen that, in this example, after dynamically generating the predistortion calibration file, the terminal may call the predistortion calibration file to determine the pre-distorted high transmit power, and perform uplink data transmission according to the pre-distorted high transmit power, by improving the PA. The linearity can increase the effective output power of the PA to some extent.

In a possible example, before the terminal starts the self-calibration process of the power amplifier PA in the uplink calibration time window, the method further includes: the terminal detecting that the physical uplink shared channel PUSCH transmit power is in the first preset transmission. a power interval, sending a configuration request message to the network device, where the configuration request message is used to request to configure the uplink calibration time window; receiving a configuration response message from the network device, where the configuration response message includes the uplink calibration time window Configuration information including window length and window period.

The first preset transmit power interval may be, for example, an interval greater than 20 dBm, and the interval is used to determine a weak signal scenario.

It can be seen that, in this example, the terminal requests the network device to configure the uplink calibration time window when detecting that the PUSCH transmit power is in the first preset transmit power interval, that is, the terminal triggers the configuration uplink calibration time when the terminal recognizes the weak signal scenario. After the window is confirmed and the uplink calibration time window is configured, the self-calibration process of the PA is performed to avoid the signaling self-calibration process in the non-essential scenario, which wastes signaling interaction and transmission resources, and improves scene positioning accuracy and resource utilization.

In a possible example, the terminal starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, the method further includes: the terminal detecting the physical uplink shared channel PUSCH transmit power After being in the second preset transmit power interval for a certain time, sending an extension request message to the network device, the extension request message is used to lengthen the calibration period; and receiving an extended acknowledgement message from the network device.

The second preset transmit power interval may be, for example, 15 dBm to 20 dBm, and the interval is used to determine a medium signal scenario, and the process may be used in the medium signal scenario, so that when the transmit power needs to be increased, the network does not need to be The device interaction reconfigures the calibration cycle and only needs to use the extended calibration cycle directly for the PA self-calibration process, so that it can respond faster.

In a possible example, the terminal starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, the method further includes: the terminal detecting the physical uplink shared channel PUSCH transmit power After being in the third preset transmit power for a certain time, sending a cancel request message to the network device, where the cancel request message is used to request cancellation of the uplink calibration time window; receiving a cancel confirmation message from the network device, and in the second uplink The slot performs data transmission, and the second uplink time slot includes the uplink calibration time window that is cancelled.

The third preset transmit power may be, for example, an interval less than 15 dBm, and the interval is used to determine a strong signal scenario, and the process of the cancel message may be used in a case of quickly switching from a weak signal scenario to a strong signal scenario.

It can be seen that, in this example, after the dynamic calibration process is enabled, when detecting that the current scene is no longer a weak signal scenario, the terminal can terminate the occupation of the uplink calibration time window in time, so that the second uplink can be included in the uplink calibration time window. More uplink data transmission is performed on the time slot to improve the utilization of transmission resources.

The weak signal scenario, the medium signal scenario, and the strong signal scenario described in this application may be partitioned according to the level of the transmit power corresponding to the current environment of the terminal. Specifically, the current signal strength interval of the terminal corresponding to the strong signal scene may be, for example, less than 15 dBm; the current transmission power intensity interval of the medium signal scene corresponding to the terminal may be, for example, 15 dBm to 20 dBm; the weak signal scene corresponds to the current transmission of the terminal. The power intensity interval can be, for example, greater than 20 dBm. In addition, the specific transmit power intensity interval values for the weak signal scenario, the medium signal scenario, and the strong signal scenario are only examples, and are not limited herein.

The method for adjusting the output power according to the embodiment of the present invention is the same as the embodiment of the present invention. The method is applicable to the foregoing example communication system. The method includes:

In Section 301, the network device receives uplink data sent by the terminal on the first uplink time slot according to the pre-distorted high transmit power, where the pre-distorted high transmit power is determined by the terminal calling the pre-distortion calibration file. The predistortion calibration file is obtained by the terminal starting a self-calibration process of the power amplifier PA in an uplink calibration time window, the terminal is in a connected state, and the first uplink time slot is in addition to the uplink calibration time. Uplink time slot outside the window.

It can be seen that, in the embodiment of the present application, since the uplink data received by the network device is sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, the pre-distorted high transmit power is that the terminal is connected. The predistortion calibration file determined by calling the predistortion calibration file is obtained by the terminal starting the self-calibration process of the power amplifier PA in the uplink calibration time window, wherein the first uplink time slot is in addition to the uplink calibration time window. The external uplink time slot, that is, the terminal can initiate a PA self-calibration process to generate a pre-distortion file that adapts the current system state, and dynamically adjust the pre-distorted high-transmit power according to the pre-distortion file to perform uplink data transmission. It is beneficial for the terminal to obtain higher linear output power in real time, and achieve the purpose of improving PA linearity and improving uplink coverage.

In one possible example, before the network device receives uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, the method further includes: the network device receiving the terminal from the terminal The configuration request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a first preset transmit power interval, and the configuration request message is used to request to configure the uplink calibration time. a window; sending a configuration response message to the terminal, the configuration response message including configuration information of the uplink calibration time window, the configuration information including a window length and a window period.

In one possible example, after the network device receives uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, the method further includes: the network device receiving the terminal from the terminal The extension request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in the second preset transmit power interval for a certain time, the extended request message is used to lengthen the calibration period Sending an extension confirmation message to the terminal.

The second preset transmit power interval may be, for example, 15 dBm to 20 dBm, where the interval is used to determine a medium signal scenario, and the process may be used in the medium signal scenario, so that when the transmit power needs to be increased, the network device is not needed. Inter-reconfigure the calibration cycle and only need to use the extended calibration cycle directly for the PA self-calibration process, so that it can respond faster.

In one possible example, after the network device receives uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, the method further includes: the network device receiving the terminal from the terminal The cancel request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a third preset transmit power interval, and the cancel request message is used to request cancellation of the uplink calibration time window; Sending a cancellation confirmation message to the terminal; receiving uplink data sent from a second uplink time slot of the terminal, where the second uplink time slot includes the cancelled uplink calibration time window.

The third preset transmit power interval may be, for example, an interval less than 15 dBm, where the interval is used to determine a strong signal scenario, and the cancel message may be used in the case of rapidly switching from a weak signal scenario to a strong signal scenario.

4A and FIG. 3, FIG. 4 is a schematic diagram of an output power adjustment method according to an embodiment of the present application, which is applied to the above example communication system, and the method includes:

In Section 401, the terminal initiates a self-calibration process of the power amplifier PA within the upstream calibration time window to obtain a predistortion calibration file for determining the high transmit power after predistortion, the terminal being in a connected state.

In section 402, the terminal invokes the predistortion calibration file to determine the high distortion power after the predistortion;

In 403, the terminal performs data transmission in the first uplink time slot according to the pre-distorted high transmit power, where the first uplink time slot is an uplink time slot except the uplink calibration time window.

In 404, the network device receives uplink data sent by the terminal on the first uplink time slot according to the pre-distorted high transmit power, where the pre-distorted high transmit power is the terminal calls the pre-distortion calibration file. Determining that the predistortion calibration file is obtained by the terminal starting a self-calibration process of the power amplifier PA in an uplink calibration time window, the terminal is in a connected state, and the first uplink time slot is in addition to the uplink Calibrate the upstream time slot outside the time window.

With reference to FIG. 5, FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure. The terminal is a first terminal. As shown in the figure, the terminal includes a processor, a memory, and a transceiver. And one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;

In one possible example, in the self-calibration process of the startup power amplifier PA, in terms of obtaining a pre-distortion calibration file, the instructions in the program are specifically configured to perform the following operations: controlling the input power of the PA according to a preset During the step of gradually increasing the step size to the target maximum transmit power, recording the output power amplitude and the output power phase of the PA, and obtaining a first correspondence relationship and a second correspondence relationship, where the first correspondence relationship is an output power amplitude with an input power a relationship of a change in amplitude, the second correspondence is a relationship of an output power phase as a function of an input power amplitude; and a pre-distortion calibration file generated according to the first correspondence and the second correspondence.

In one possible example, the program further includes instructions for: initiating a self-calibration process of the power amplifier PA within the uplink calibration time window, after the predistortion calibration file is obtained, invoking the predistortion The calibration file determines the high distortion power after the pre-distortion; and is configured to perform data transmission in the first uplink time slot according to the pre-distorted high transmission power, where the first uplink time slot is in addition to the uplink calibration time Uplink time slot outside the window.

In one possible example, the program further includes instructions for: detecting that the physical uplink shared channel PUSCH transmit power is in the first step before the self-calibration procedure of the power amplifier PA is initiated within the uplink calibration time window a preset transmit power interval, sending a configuration request message to the network device, the configuration request message for requesting configuration of the uplink calibration time window; and receiving a configuration response message from the network device, the configuration response message The configuration information of the uplink calibration time window is included, and the configuration information includes a window length and a window period.

In one possible example, the program further includes instructions for: initiating a self-calibration process of the power amplifier PA within the uplink calibration time window, after obtaining the pre-distortion calibration file, detecting physical uplink sharing After the channel PUSCH transmit power is at the second preset transmit power for a certain time, the network device sends an extension request message, the extension request message is used to lengthen the calibration period, and is configured to receive an extended acknowledgement message from the network device.

In one possible example, the program further includes instructions for: initiating a self-calibration process of the power amplifier PA within the uplink calibration time window, after obtaining the pre-distortion calibration file, detecting physical uplink sharing After the channel PUSCH transmit power is in the third preset transmit power interval for a certain time, sending a cancel request message to the network device, the cancel request message is used to request cancellation of the uplink calibration time window; and for receiving cancellation confirmation from the network device And transmitting data in the second uplink time slot, the second uplink time slot including the uplink calibration time window that is cancelled.

With reference to FIG. 6 , FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in the figure, the network device includes a processor, a memory, a communication interface, and one or more. a program, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the program comprising instructions for performing the following steps;

In one possible example, the program further includes instructions for: receiving the received data from the terminal before the uplink data transmitted on the first uplink time slot according to the pre-distorted high transmit power a configuration request message of the terminal, where the configuration request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a first preset transmit power interval, where the configuration request message is used to request to configure the uplink And calibrating a time window; and configured to send a configuration response message to the terminal, the configuration response message including configuration information of the uplink calibration time window, the configuration information including a window length and a window period.

In one possible example, the program further includes instructions for: receiving, after receiving, uplink data sent by the terminal from the pre-distorted high transmit power on the first uplink time slot, receiving An extension request message of the terminal, where the extension request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a second preset transmit power interval, the extended request message is used to set a calibration period Elongating; and for transmitting an extended acknowledgement message to the terminal.

In one possible example, the program further includes instructions for: receiving, after receiving, uplink data sent by the terminal from the pre-distorted high transmit power on the first uplink time slot, receiving The cancel request message of the terminal is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a third preset transmit power interval for a certain time, and the cancel request message is used to request to cancel the uplink. a calibration time window; and for transmitting a cancellation confirmation message to the terminal; and for receiving uplink data transmitted from a second uplink time slot of the terminal, the second uplink time slot including the cancelled uplink calibration Time window.

The foregoing describes the solution of the embodiment of the present application mainly from the perspective of interaction between the network elements. It can be understood that the terminal and the network device include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the application.

The embodiments of the present application may perform the division of functional units on the terminal and the network device according to the foregoing method. For example, each functional unit may be divided according to each function, or two or more functions may be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.

In the case of employing an integrated unit, FIG. 7 shows a block diagram of a possible functional unit composition of the terminal involved in the above embodiment, which is a first terminal. The terminal 700 includes a processing unit 702 and a communication unit 703. The processing unit 702 is configured to perform control management on the actions of the terminal. For example, the processing unit 702 is configured to support the terminal to perform step 201 in FIG. 2A, 401 to 403 in FIG. 4, and/or other processes for the techniques described herein. . The communication unit 703 is for supporting communication between the terminal and other devices, such as communication with the network device shown in FIG. 6. The terminal may further include a storage unit 701 for storing program codes and data of the terminal.

The processing unit 702 can be a processor or a controller, the communication unit 703 can be a transceiver, a transceiver circuit, a radio frequency chip, etc., and the storage unit 701 can be a memory.

The processing unit 702 is configured to pass the communication unit 703.

It can be seen that, in this example, when the terminal is in the connected state, the self-calibration process of the power amplifier PA can be started in the uplink calibration time window to obtain a pre-distortion calibration file, which is used to determine the high-transmit power after pre-distortion. It can be seen that when the terminal is in the connected state, the self-calibration process of the PA can be started in real time in the uplink calibration time window, and a pre-distortion calibration file adapted to the current scene environment condition is dynamically generated, so that the terminal can determine the pre-distortion according to the dynamic pre-distortion calibration file. After the high transmit power, and in the current scenario, the uplink data transmission is performed according to the high transmit power, which is beneficial to the terminal to obtain higher linear output power in real time, thereby improving the PA linearity and improving the uplink coverage.

In one possible example, in the self-calibration process of the startup power amplifier PA, the processing unit 702 is specifically configured to: gradually increase the input power of the PA according to a preset step size. In the process of the target maximum transmit power, the output power amplitude and the output power phase of the PA are recorded, and a first correspondence relationship and a second correspondence relationship are obtained, where the first correspondence relationship is a relationship between the output power amplitude and the input power amplitude. The second correspondence relationship is a relationship between an output power phase and an input power amplitude; and configured to generate a predistortion calibration file according to the first correspondence relationship and the second correspondence relationship.

In one possible example, the processing unit 702 starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, is further used to: call the pre-distortion calibration file to determine the pre-distortion And a high transmit power; and configured to perform data transmission in the first uplink time slot by the communication unit 703 according to the pre-distorted high transmit power, where the first uplink time slot is in addition to the uplink calibration time window Upstream time slots outside.

In a possible example, before the self-calibration process of the power amplifier PA is started in the uplink calibration time window, the processing unit 702 is further configured to: detect that the physical uplink shared channel PUSCH transmit power is in the first preset transmit power interval, Sending a configuration request message to the network device, the configuration request message for requesting configuration of the uplink calibration time window; and for receiving, by the communication unit 703, a configuration response message from the network device, the configuration response message including The configuration information of the uplink calibration time window, the configuration information includes a window length and a window period.

In a possible example, the processing unit 702 starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, is further configured to: detect that the physical uplink shared channel PUSCH transmit power is in the second After the preset transmit power is for a certain time, an extension request message is sent to the network device, the extension request message is used to lengthen the calibration period, and is used to receive an extended acknowledgement message from the network device by the communication unit 703.

In one possible example, the processing unit 702 starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, is further configured to: detect that the physical uplink shared channel PUSCH transmit power is in the third After the preset transmit power interval is for a certain time, sending a cancel request message to the network device, where the cancel request message is used to request cancellation of the uplink calibration time window; and for receiving the cancel confirmation message from the network device by using the communication unit 703 And performing data transmission in a second uplink time slot, where the second uplink time slot includes the uplink calibration time window that is cancelled.

When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the terminal involved in the embodiment of the present application may be the terminal shown in FIG. 5.

In the case of employing an integrated unit, FIG. 8 shows a block diagram of one possible functional unit configuration of the network device involved in the above embodiment. The network device 800 includes a processing unit 802 and a communication unit 803. The processing unit 802 is configured to control and manage the actions of the network device. For example, the processing unit 802 is configured to support the network device to perform step 301 in FIG. 3, step 404 in FIG. 4 and/or other techniques for the techniques described herein. process. The communication unit 803 is for supporting communication between the network device and other devices, such as communication with the terminal shown in FIG. The network device can also include a storage unit 801 for storing program codes and data of the network device.

The processing unit 802 can be a processor or a controller, and can be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The communication unit 803 may be a transceiver, a transceiver circuit, or the like, and the storage unit 801 may be a memory.

The processing unit 802 is used to

It can be seen that, in this example, the uplink data received by the network device is sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, and the pre-distorted high transmit power is called when the terminal is in the connected state. The predistortion calibration file determined by the distortion calibration file is obtained by the terminal starting the self-calibration flow of the power amplifier PA in the uplink calibration time window, and the first uplink time slot is an uplink other than the uplink calibration time window. Gap, that is, the terminal can initiate a PA self-calibration process to generate a pre-distortion file that adapts to the current system state, and dynamically adjust the pre-distorted high-transmit power according to the pre-distortion file to perform uplink data transmission, which is beneficial to the terminal real-time. Obtain higher linear output power to improve PA linearity and improve uplink coverage.

In one possible example, the processing unit 802 is further configured to: pass through the communication unit to receive uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot. The communication unit 803 receives a configuration request message from the terminal, where the configuration request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a first preset transmit power interval, the configuration request message And configured to request to configure the uplink calibration time window; and configured to send, by using the communication unit 803, a configuration response message, where the configuration response message includes configuration information of the uplink calibration time window, where the configuration information includes Window length and window period.

In one possible example, the processing unit 802 is further configured to: after receiving, by the communication unit, uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, by using the communication The unit 803 receives an extension request message from the terminal, where the extension request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmission power is in the second preset transmit power interval for a certain time, the extension request message. For extending the calibration period; and for transmitting an extension confirmation message to the terminal through the communication unit 803.

In one possible example, the processing unit 802 receives, by the communication unit 803, after uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, and is further used to: pass the communication The unit 803 receives a cancel request message from the terminal, where the cancel request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a third preset transmit power interval for a certain time, the cancel request message Used to request cancellation of an uplink calibration time window; and for transmitting a cancellation confirmation message to the terminal through the communication unit 803; and for receiving, by the communication unit 803, an uplink sent from the second uplink time slot of the terminal Data, the second uplink time slot includes the uplink calibration time window that is cancelled.

When the processing unit 802 is a processor, the communication unit 803 is a communication interface, and the storage unit 801 is a memory, the network device involved in the embodiment of the present application may be the network device shown in FIG. 6.

The embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a terminal as in the above method embodiment Some or all of the steps described.

The embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute a network in the method embodiment as described above Some or all of the steps described by the device.

The embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform the method embodiment as described above Some or all of the steps described in the terminal. The computer program product can be a software installation package.

The embodiment of the present application further provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program, the computer program being operative to cause a computer to perform a network as in the above method Some or all of the steps described by the device. The computer program product can be a software installation package.

The steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented by a processor executing software instructions. The software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in an access network device, a target network device, or a core network device. Of course, the processor and the storage medium may also exist as discrete components in the access network device, the target network device, or the core network device.

Those skilled in the art should appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). )Wait.

The specific embodiments of the present invention have been described in detail with reference to the embodiments, technical solutions and advantages of the embodiments of the present application. It should be understood that the foregoing description is only The scope of the present invention is defined by the scope of the present invention, and any modifications, equivalents, improvements, etc., which are included in the embodiments of the present application, are included in the scope of protection of the embodiments of the present application.

Claims

An output power adjustment method is characterized in that it is applied to a terminal, and the method includes:

The self-calibration process of the power amplifier PA is initiated within the upstream calibration time window to obtain a pre-distortion calibration file for determining the high transmit power after pre-distortion, the terminal being in a connected state.
The method according to claim 1, wherein the self-calibration process of the power amplifier PA is started to obtain a predistortion calibration file, including:

During the process of controlling the input power of the PA to gradually increase to the target maximum transmit power according to the preset step size, recording the output power amplitude and the output power phase of the PA to obtain a first correspondence relationship and a second correspondence relationship, The first correspondence relationship is a relationship between an output power amplitude and an input power amplitude, and the second correspondence relationship is a relationship between an output power phase and an input power amplitude;

And generating a predistortion calibration file according to the first correspondence relationship and the second correspondence relationship.
The method according to claim 1 or 2, wherein the self-calibration process of the power amplifier PA is started in the uplink calibration time window to obtain a pre-distortion calibration file, the method further comprising:

Calling the predistortion calibration file to determine the high distortion power after the predistortion;

And performing data transmission in the first uplink time slot according to the pre-distorted high transmit power, where the first uplink time slot is an uplink time slot except the uplink calibration time window.
The method according to any one of claims 1 to 3, wherein the method further comprises: before the self-calibration process of the power amplifier PA is started in the uplink calibration time window, the method further comprises:

Detecting that the physical uplink shared channel PUSCH transmit power is in the first preset transmit power interval, and sending a configuration request message to the network device, where the configuration request message is used to request to configure the uplink calibration time window;

Receiving a configuration response message from the network device, the configuration response message including configuration information of the uplink calibration time window, the configuration information including a window length and a window period.
The method according to any one of claims 1-4, wherein the self-calibration process of the power amplifier PA is started in the uplink calibration time window to obtain a pre-distortion calibration file, the method further comprising:

After detecting that the physical uplink shared channel PUSCH transmit power is at the second preset transmit power for a certain period of time, sending an extension request message to the network device, where the extended request message is used to lengthen the calibration period;

Receiving an extended acknowledgement message from the network device.
The method according to any one of claims 1-4, wherein the self-calibration process of the power amplifier PA is started in the uplink calibration time window to obtain a pre-distortion calibration file, the method further comprising:

After detecting that the physical uplink shared channel PUSCH transmit power is in the third preset transmit power interval for a certain period of time, sending a cancel request message to the network device, where the cancel request message is used to request to cancel the uplink calibration time window;

Receiving a cancel acknowledgement message from the network device and performing data transmission in a second uplink time slot, the second uplink time slot including the cancelled uplink calibration time window.
An output power adjustment method is characterized in that it is applied to a network device, and the method includes:

Receiving uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, where the pre-distorted high transmit power is determined by the terminal calling a pre-distortion calibration file, the pre-distortion calibration The file is obtained by the terminal starting a self-calibration process of the power amplifier PA in an uplink calibration time window, the terminal is in a connected state, and the first uplink time slot is an uplink other than the uplink calibration time window. Gap.
The method according to claim 7, wherein the method further comprises: before receiving the uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, the method further comprising:

Receiving a configuration request message from the terminal, where the configuration request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a first preset transmit power interval, the configuration request message is used to request configuration The uplink calibration time window;

Sending a configuration response message to the terminal, the configuration response message including configuration information of the uplink calibration time window, the configuration information including a window length and a window period.
The method according to claim 7 or 8, wherein the method further comprises: after receiving the uplink data sent by the terminal on the first uplink time slot according to the pre-distorted high transmit power, the method further comprises:

Receiving an extension request message from the terminal, where the extension request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a second preset transmit power interval for a certain time, the extended request message is used. Extend the calibration cycle;

Sending an extension confirmation message to the terminal.
The method according to claim 7 or 8, wherein the method further comprises: after receiving the uplink data sent by the terminal on the first uplink time slot according to the pre-distorted high transmit power, the method further comprises:

Receiving a cancel request message from the terminal, where the cancel request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a third preset transmit power interval for a certain time, the cancel request message is used for Request to cancel the upstream calibration time window;

Sending a cancellation confirmation message to the terminal;

Receiving uplink data sent from a second uplink time slot of the terminal, where the second uplink time slot includes the uplink calibration time window that is cancelled.
A terminal, comprising: a processing unit and a communication unit,

The processing unit is configured to start a self-calibration process of the power amplifier PA in an uplink calibration time window to obtain a predistortion calibration file, where the predistortion calibration file is used to determine a high distortion power after predistortion, and the terminal is connected state.
The terminal according to claim 11, wherein in the self-calibration process of the startup power amplifier PA, the processing unit is specifically configured to: control the input power of the PA according to the pre-distortion calibration file. In the process of gradually increasing the step size to the target maximum transmit power, recording the output power amplitude and the output power phase of the PA, and obtaining a first correspondence relationship and a second correspondence relationship, where the first correspondence relationship is an output power amplitude with an input. a relationship of a change in power amplitude, the second correspondence is a relationship of an output power phase as a function of an input power amplitude; and a pre-distortion calibration file generated according to the first correspondence and the second correspondence.
The terminal according to claim 11 or 12, wherein the processing unit starts the self-calibration process of the power amplifier PA in the uplink calibration time window, and after obtaining the pre-distortion calibration file, is further used to: call the pre-distortion The calibration file determines the high-transmit power after the pre-distortion; and is configured to perform data transmission in the first uplink time slot by the communication unit 703 according to the pre-distorted high transmit power, where the first uplink time slot is An upstream time slot other than the upstream calibration time window.
A network device, comprising: a processing unit and a communication unit,

The processing unit is configured to receive, by using the communications unit, uplink data that is sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, where the pre-distorted high transmit power is the terminal call pre- Determining the distortion calibration file, the predistortion calibration file is obtained by the terminal starting a self-calibration process of the power amplifier PA in an uplink calibration time window, the terminal is in a connected state, and the first uplink time slot is An upstream time slot other than the upstream calibration time window.
The network device according to claim 14, wherein the processing unit, before receiving, by the communication unit, uplink data sent by the terminal according to the pre-distorted high transmit power on the first uplink time slot, The method is further configured to: receive, by using the communication unit, a configuration request message from the terminal, where the configuration request message is sent by the terminal when detecting that a physical uplink shared channel PUSCH transmit power is in a first preset transmit power interval, The configuration request message is used to request to configure the uplink calibration time window; and configured to send a configuration response message to the terminal by using the communication unit, where the configuration response message includes configuration information of the uplink calibration time window, where The configuration information includes the window length and the window period.
The network device according to claim 14 or 15, wherein the processing unit receives, after the uplink data sent by the terminal on the first uplink time slot according to the pre-distorted high transmission power, by the communication unit, The method further includes: receiving, by the communication unit, an extension request message from the terminal, where the extension request message is sent by the terminal when detecting that the physical uplink shared channel PUSCH transmit power is in a second preset transmit power interval for a certain time The extension request message is used to lengthen the calibration period; and is used to send an extension confirmation message to the terminal through the communication unit.
A terminal, comprising: a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program comprises instructions for performing the steps in the method of any of claims 1-6.
A network device, comprising a processor, a memory, a transceiver, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, The program comprises instructions for performing the steps in the method of any of claims 7-10.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any of claims 1-6.
A computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of any one of claims 7-10.