CN115696539A

CN115696539A - Method, device, terminal and storage medium for determining transmission power

Info

Publication number: CN115696539A
Application number: CN202110867036.XA
Authority: CN
Inventors: 王勇; 吴凯
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2023-02-03

Abstract

The application discloses a method, a device, a terminal and a storage medium for determining transmission power, which belong to the technical field of communication, and the method for determining the transmission power comprises the following steps: the terminal determines a first transmission power to be applied by the terminal in a first time window based on first information; the first time window is a duration configured for joint channel estimation or demodulation reference signal (DMRS) bundling transmission by the terminal, and the first transmission power is fixed or has a variation amplitude within a preset threshold value within the duration of the first time window.

Description

Method, device, terminal and storage medium for determining transmission power

Technical Field

The present application belongs to the field of communication technologies, and in particular, to a method, an apparatus, a terminal, and a storage medium for determining transmit power.

Background

In a protocol related to a Demodulation Reference Signal (DMRS) bundling (bundling) transmission technique, power consistency and phase continuity need to be maintained among multiple transmissions, so that a network may jointly perform channel estimation based on multiple uplink transmissions, thereby improving reception performance.

However, when a User Equipment (UE) operates in a time window of DMRS bundling, in order to meet a protocol specification, a power class (power class) used by the UE may be adjusted in a certain evaluation period (evaluation period) due to a duty ratio of an uplink transmission symbol, and then corresponding uplink transmission power is adjusted, which may cause that the UE cannot maintain power consistency in the time window, and further cause performance degradation of demodulation performed by a receiving end through joint channel estimation, which affects coverage capability.

Disclosure of Invention

The embodiment of the application provides a method, a device, a terminal and a storage medium for determining transmission power, which can solve the problem that in the prior art, when a UE works in a time window of DMRS bundling, the consistency of the transmission power cannot be maintained.

In a first aspect, a method for determining transmit power is provided, where the method is applied to a terminal, and the method includes:

the terminal determines a first transmission power to be applied by the terminal in a first time window based on first information;

the first time window is a duration configured for joint channel estimation or demodulation reference signal (DMRS) bundling transmission by the terminal, and the first transmission power is fixed or has a variation amplitude within a preset threshold value within the duration of the first time window.

In a second aspect, an apparatus for determining transmit power is provided, and is applied to a terminal, and the apparatus includes:

the first processing module is used for determining first transmission power to be applied by the terminal in a first time window based on the first information;

In a third aspect, a terminal is provided, the terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.

In a fourth aspect, a terminal is provided, which includes a processor and a communication interface, where the processor is configured to determine, based on first information, a first transmit power to be applied by the terminal in a first time window;

In a fifth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, performs the steps of the method according to the first aspect.

In a sixth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect.

In a seventh aspect, a computer program/program product stored in a non-transitory storage medium is provided, which is executed by at least one processor to implement the steps of the method for determining transmit power according to the first aspect.

In the embodiment of the application, before the joint channel estimation or DMRS bundling is started, the UE determines and sets the transmission power, which is not changed continuously in the time window of the joint channel estimation or DMRS bundling, based on the first information, so that when the UE processes according to the transmission power in the subsequent actual joint channel estimation or DMRS bundling process, the consistency of the transmission power of the UE can be ensured, thereby ensuring the performance of demodulation by the receiving end through the joint channel estimation.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic flowchart of a method for determining transmit power according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a device for determining transmit power according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 5 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally used herein in a generic sense to distinguish one element from another, and not necessarily from another element, such as a first element which may be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, and a character "/" generally means that the former and latter related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposesAnd in much of the description below NR terminology is used, but these techniques may also be applied to applications other than NR systems applications, such as 6 th generation (6) ^th Generation, 6G) communication system.

Fig. 1 is a block diagram showing a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 101 and a network-side device 102. Wherein, the terminal 101 may also be called a terminal Device or a User terminal or a User Equipment (UE), the terminal 101 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (week Device), a vehicle mounted Device (VUE), a pedestrian terminal (PUE), a smart home (a Wearable Device with wireless communication function, such as refrigerator, television, washing machine or furniture) and other terminal side devices, and the Wearable Device includes: smart watch, smart bracelet, smart earphone, smart glasses, smart jewelry (smart bracelet, smart ring, smart necklace, smart anklet, etc.), smart wristband, smart garment, game console, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 101. The network-side device 102 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.

Aiming at the defect that the power consistency of the UE cannot be ensured when the power adjusting process of the UE according to the duty ratio is in the time window of the DMRS bundling in the prior art, the consistent transmission power of the UE can be ensured when the subsequent actual joint channel estimation or the DMRS bundling process is processed according to the transmission power by determining and setting the continuous transmission power in the time window of the joint channel estimation or the DMRS bundling based on the first information before the joint channel estimation or the DMRS bundling is started, so that the demodulation performance of a receiving end through the joint channel estimation can be ensured. The following describes a method, an apparatus, a terminal and a storage medium for determining transmit power according to embodiments of the present application in detail through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 2 is a flowchart of a method for determining transmit power according to an embodiment of the present application, where the method may be executed by a terminal, and the terminal may specifically be the terminal 101 shown in fig. 1. As shown in fig. 2, the method includes:

step 201, the terminal determines a first transmission power to be applied by the terminal in a first time window based on the first information.

The first time window is a duration configured for performing joint channel estimation or for performing demodulation reference signal DMRS bundling transmission by the terminal, and the first transmission power is fixed or varies within a preset threshold in the duration of the first time window.

It can be understood that, in order to avoid the problem that the power consistency in the first time window of the joint channel estimation or DMRS bundling cannot be guaranteed when the terminal adjusts the power level according to the existing protocol, in the embodiment of the present application, before the joint channel estimation or DMRS bundling, a first transmission power to be used by the terminal within the entire first time window duration of the joint channel estimation or DMRS bundling is determined and set according to the obtained first information in advance, where the first transmission power may be a configured transmission power.

It should be understood that, in the embodiment of the present application, in the case of setting the first transmission power, the value of the first transmission power is fixed throughout the duration of the first time window, or the amplitude of the change is allowed to be within a preset threshold range according to an actual application scenario. The preset threshold may be determined by some power requirement or other index, which enables the terminal to maintain the conditions required for power consistency. For example, by means of the parameter aggregate power tolerance, it is possible to give a power variation that can be tolerated within a certain time.

In the uplink transmission application of the embodiment of the present application, the receiving end may be a network side device, such as a base station, and the terminal serves as the sending end.

According to the method for determining the transmission power, the UE determines and sets the transmission power which is not changed continuously in the time window of joint channel estimation or DMRS bundling based on the first information before the joint channel estimation or DMRS bundling is started, so that when the UE processes according to the transmission power in the subsequent actual joint channel estimation or DMRS bundling process, the consistency of the transmission power of the UE can be ensured, and the demodulation performance of a receiving end through the joint channel estimation is ensured.

The first information in the above embodiments is a parameter or information related to determining the first transmission power of the terminal. Optionally, the method further comprises: determining the first information in at least one of the following ways:

the method comprises the steps of determining based on first indication information received by the terminal, wherein the first indication information is indication information associated with joint channel estimation or demodulation reference signal (DMRS) bundling transmission;

determining based on first configuration information, a first duty ratio determined by the terminal and/or first reporting information in the terminal capability reporting;

wherein the first configuration information is used for indicating at least one of the following:

whether a first maximum output power is configured;

a value of the configured first maximum output power;

the first maximum output power is used for limiting the maximum transmission power of the terminal;

the first duty cycle is a duty cycle of an uplink transmission available time slot or symbol of the terminal in the first time window, or is a duty cycle of the terminal at any set time in the first time window;

the first reporting information is used for indicating at least one of the following:

whether to report an uplink duty ratio threshold value;

and reporting the value of the uplink duty ratio threshold.

It is to be understood that the terminal may determine the first information according to the above-listed processing manner before determining the first transmission power based on the first information. Specifically, according to different combination forms of the processing manners, the first information may be determined through the following three ways:

first, before entering the first time window, the terminal may receive indication information related to joint channel estimation or DMRS bundling, which may be referred to as first indication information. First information may be generated based on the first indication information.

Optionally, the first indication information includes at least one of:

enabling indication of joint channel estimation or demodulation reference signal (DMRS) bundling transmission;

a signaling indication (including an explicit or implicit signaling indication) for configuring the first time window;

an enable indication of power consistency is maintained.

It should be understood that, according to practical applications, the first indication information in the embodiment of the present application may be any one of the above types of indication information or indication information determined by a combination of any multiple of the above types of indication information. For example, if the terminal receives an enable indication for maintaining power consistency, the enable indication may be directly used as the first indication information; if the terminal receives the enabling indication for maintaining the power consistency and also receives a signaling indication for configuring the first time window, one of the enabling indication and the signaling indication can be determined through a certain decision and used as first indication information.

Alternatively, the terminal may determine the duty ratio of uplink transmission (referred to as the first duty ratio) in advance by predicting, or assuming that all timeslots in the first time window are available for uplink transmission, or determining the uplink available timeslots in the first time window according to a certain RRC signaling or scheduling signaling, or determining the uplink available timeslots in the first time window according to the uplink available timeslot pattern. Meanwhile, the terminal can obtain the first configuration information and the first reporting information of the terminal in the capability reporting. The first information may be determined according to the first duty ratio, the first configuration information, and/or the first reporting information.

The first reporting information represents the reporting condition of the uplink duty ratio threshold, including whether to report the duty ratio threshold and/or the reported duty ratio threshold, and the like. For example, whether the parameter maxuplinkdtycycle-PC 2-FR1 is included in the terminal reporting capability (UE capability) message, what the value of maxuplinkdtycycle-PC 2-FR1 is if maxuplinkdtycycle-PC 2-FR1 is configured, and the like. The parameter maxuplinkdtycycle-PC 2-FR1 belongs to a field (field) of a specific class, and a value corresponding to the field is used to define a duty cycle threshold for uplink transmission of a terminal supporting the default power class and the second power class. I.e., to specify the maximum duty cycle for uplink transmissions for terminals supporting the second power level on a band under FR 1. The configurable value range of the domain maxuplinkdutycycler-PC 2-FR1 may be {60%,70%,80%,90%,100% }, and an evaluation period (evaluation period) of the domain maxuplinkdutycycler-PC 2-FR1 is specified to be not less than 1 radio frame.

The first configuration information indicates a configuration situation of the first maximum output power, including whether the first maximum output power is configured and/or what the configured first maximum output power is. Optionally, the first maximum output power is one of:

maximum output power of Intra-frequency (Intra-frequency) neighboring cells (e.g., NR cells);

maximum output power of neighboring cells (e.g., NR cells) of the same carrier frequency (carrier frequency);

the maximum transmit power allowed by the current serving cell.

The first configuration information includes, for example, whether or not the parameter p-Max is configured, if the parameter p-Max is configured, what value the configured parameter p-Max is, and the like. The parameter p-Max is a maximum output power corresponding to an inter-frequency adjacent cell new interference (NR) cell, or a maximum output power of an adjacent NR cell with the same carrier frequency, or a maximum transmission power allowed by a current serving cell, and a value range of the parameter p-Max may be [ -30 \8230; 33], and a unit of dBm.

The first duty cycle is an available symbol duty cycle determined by the terminal within a first time window. Optionally, the first duty cycle is a duty cycle of an uplink transmission available time slot or symbol of the terminal in the first time window, or a duty cycle of the terminal at any set time in the first time window.

Wherein the uplink transmission available time slot or symbol is determined based on at least one of the following signaling:

tdd-UL-DL-ConfigurationCommon；

tdd-UL-DL-ConfigurationDedicated；

ssb-PositionsInBurst；

an SSB-based Measurement Timing configuration (SMTC) indication based on a synchronization signal block (SS/PBCH block, SSB) Measurement;

type 0-CORESET 0 in PDCCH CSS set.

It can be understood that the terminal may determine the first duty cycle according to the duty cycle of the uplink transmission available time slot or symbol in the first time window and/or the duty cycle at any set time in the first time window. Wherein the time slot or symbol available for uplink transmission is further determined according to one or any more of the above listed signaling. Wherein, the signaling TDD-UL-DL-configuration common is used to indicate uplink and downlink frame structure configuration of a Time Division Duplex (TDD) system at a cell level; the signaling TDD-UL-DL-configuration determined is used for indicating the uplink and downlink frame structure configuration of the dedicated/user-level TDD system; the signaling SSB-positioninburst is used to indicate the SSB candidate set position.

Or, the terminal may also determine one of the first information and the second information as the first information through a certain decision based on the first information and the first information determined based on the first duty cycle, the first configuration information, and/or the first reporting information.

According to the embodiment of the application, the first information is determined through the configuration condition of the first indication information and/or the first maximum output power received by the terminal and the reporting condition of the first duty ratio and/or the uplink duty ratio threshold determined by the terminal, so that the consistency of the transmission power of the terminal in the first time window is maintained according to the first transmission power determined by the first information.

Optionally, the first information is a first target power level and/or a second target power level applied by the terminal in the first time window;

the first target power level is used for setting the configured first transmission power, and the power requirement or radio frequency index corresponding to the second target power level is used for applying to the first target power level.

It can be understood that, in the process of determining the first transmission power according to the first information, since the first transmission power is related to the power level applied by the terminal, the terminal also determines and sets the target power level applied by the terminal in the first time window.

Specifically, the terminal may determine, in the determining manner of the first information, a target power level directly used for setting the configured first transmission power, and use the target power level as the first target power level, where the first target power level is the first information. Alternatively, a second target power level may be determined by determining the first information, where a power requirement or a radio frequency indicator corresponding to the second target power level is used for applying to the first target power level, and the second target power level may also be used as the first information. Alternatively, the first target power level and the second target power level may be determined simultaneously to determine the corresponding power requirement and the radio frequency indicator and Set the configured first transmit power (Set the configured transmitted power).

That is, the terminal may determine a first target power level to be used within a first time window, the first target power level being used to set a configured transmit power; and/or determining a second target power level used by the terminal in the first time window, wherein power requirements (requirements) corresponding to the second target power level are applied to the first target power level, and both the first target power level and the second target power level can be used as the first information.

The Configured transmit power may be determined by combining with other related processes, and the Configured first transmit power may be set according to the determined target power level.

It should be noted that, the first target power level and the second target power level may correspond to the same power class (power class).

According to the embodiment of the application, the configured sending power can be set more conveniently and quickly on the basis by determining the target power level related to the configured sending power, and the configured sending power conforms to the existing protocol regulations and is convenient to maintain.

Optionally, the terminal supports a default power class, or the terminal supports both an outer and a second power class of the default power class; wherein the maximum output power of the second power level is higher than the maximum output power of the default power level.

It is to be understood that the method for determining transmission power according to the embodiment of the present application is applicable not only to the case where the terminal supports only the default power class (default power class), but also to the case where the terminal may support a second power class (power class) having a higher maximum output power than the default power class in addition to the default power class. For the prior art, it is known that at present, a terminal can support at most 2 power classes on a certain band, but the scheme of the embodiment of the present application is also applicable to a scenario in which the terminal supports more power classes. That is to say, the technical solution of the embodiment of the present application is also applicable to a scenario that the terminal may support the second power class in addition to the default power class, and the maximum output power of the second power class is higher than the maximum output power of the default power class.

The embodiment of the application has the advantages that the expandability is stronger and the applicability is wider by limiting the applicable various power grade scenes.

Optionally, when the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the determining, by the terminal, the first target power level includes:

the terminal determines any one of the second power classes as the first target power class when a first condition is met, otherwise, determines the default power class as the first target power class, wherein the first condition includes at least one of the following:

the terminal does not contain the uplink duty ratio threshold in the capability report, and the first duty ratio is larger than 50%;

the terminal does not contain the uplink duty ratio threshold in the capability report, the first duty ratio is not more than 50%, and the first maximum output power is not configured;

the terminal does not contain the uplink duty ratio threshold in the capability report, the first duty ratio is not more than 50%, and the configured first maximum output power is higher than the maximum output power corresponding to the default power level;

the terminal comprises the uplink duty ratio threshold in the capability report, and the first duty ratio is larger than the uplink duty ratio threshold;

the terminal comprises the uplink duty ratio threshold in the capability report, the first duty ratio is not more than the uplink duty ratio threshold, and the first maximum output power is not configured;

the terminal includes the uplink duty ratio threshold in the capability report, the first duty ratio is not larger than the uplink duty ratio threshold, and the configured first maximum output power is higher than the maximum output power corresponding to the default power level.

It can be understood that, according to the above embodiments, the embodiments of the present application are also applicable to a scenario in which the terminal supports the second power level in addition to the default power level. In this scenario, when the first information is determined based on the first configuration information, the first duty cycle, and/or the first reported information, determining the first target power level may include the following cases:

first, the terminal determines the second power level as a first target power level in the following cases:

(1) The domain maxuplinkdtycycle-PC 2-FR1 is not included in the UE capability report, and,

the first duty cycle is greater than 50%,

or, the first duty cycle is not more than 50% and the first maximum output power is not configured,

or the first duty ratio is not more than 50% and the configured first maximum output power is higher than the maximum output power corresponding to the default power class;

(2) The UE capability report contains a domain maxUplinkDutyCycle-PC2-FR1, and,

the first duty cycle is greater than a threshold value specified by the domain maxuplinkdtycycle-PC 2-FR1,

or, the first duty cycle is not greater than a threshold specified by the domain maxUpLinkDutyCycle-PC2-FR1 and the first maximum output power is not configured,

or the first duty ratio is not larger than a threshold value specified by the domain maxUpLinkDutyCycle-PC2-FR1 and the first maximum output power is configured to be higher than the maximum output power corresponding to the default power class.

Second, in other cases than the above, the terminal determines the default power class as the first target power class.

Optionally, when the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the determining, by the terminal, the second target power level includes:

the terminal determines any one of the second power classes as the second target power class when a second condition is met, otherwise, determines the default power class as the second target power class, wherein the second condition includes at least one of the following:

the terminal comprises the uplink duty ratio threshold in the capacity report, the first duty ratio is not greater than the uplink duty ratio threshold, and the first maximum output power is not configured;

the terminal includes the uplink duty ratio threshold in the capability report, the first duty ratio is not greater than the uplink duty ratio threshold, and the configured first maximum output power is higher than the maximum output power corresponding to the default power class.

It can be understood that, according to the above embodiments, the embodiments of the present application are also applicable to a scenario in which the terminal supports the second power level in addition to the default power level. In this scenario, when the first information is determined based on the first configuration information, the first duty cycle, and/or the first reported information, determining the second target power level may include the following cases:

first, the terminal determines the second power level as a second target power level in the following cases:

(1) The domain maxuplinkdetycycle-PC 2-FR1 is not included in the UE capability report, and,

the first duty cycle is no greater than 50% and the first maximum output power is not configured,

or, the first duty ratio is not more than 50% and the configured first maximum output power is higher than the maximum output power corresponding to the default power class;

(2) The UE capability report contains a domain maxUplinkDutyCycle-PC2-FR1, and,

the first duty cycle is not greater than the threshold specified by the domain maxuplinkdtycycle-PC 2-FR1 and the first maximum output power is not configured,

or the first duty ratio is not larger than a threshold value specified by the domain maxUpLinkDutyCycle-PC2-FR1 and the configured first maximum output power is higher than the maximum output power corresponding to the default power class.

Second, in other cases than the above, the terminal determines the default power class as the second target power class.

According to the embodiment of the application, the target power level used by the UE in the time window is determined according to the duty ratio corresponding to the uplink available transmission time slot/symbol, the configuration condition of the first maximum output power and/or the report condition of the terminal on the uplink duty ratio threshold in the capability report in the time window of the joint channel estimation/DMRS bundling, so that the consistency of the UE power in the time window can be maintained, the demodulation performance of the joint channel estimation of the receiving end is ensured, and the coverage capability is improved.

Optionally, in a case that the terminal supports a default power level and the second power level, and the first information is determined based on the first indication information, the determining, by the terminal, the first information includes:

and under the condition that the terminal carries out uplink transmission of DMRS (demodulation reference signal) binding transmission in the first time window or a receiving end of the DMRS binding transmission carries out joint channel estimation in the first time window, the terminal determines the default power level to be the first target power level and/or the second target power level based on the first indication information, or determines any one second power level to be the first target power level and/or the second target power level.

It can be understood that, according to the above embodiments, the embodiments of the present application are also applicable to a scenario in which the terminal supports the second power level in addition to the default power level. In this scenario, when the first information is determined according to the first indication information, determining the first target power level and/or the second target power level may include, for example:

the terminal firstly judges whether the terminal is in an uplink transmission scene for carrying out DMRS bundling/joint channel estimation in a first time window. If so, the terminal determines that the default power class is the first target power class and/or the second target power, or the terminal determines that another power class except the default power class is the first target power class and/or the second target power class in the power classes supported by the UE. Otherwise, the terminal determines a first target power level according to a mode specified by the existing protocol.

The target power level of the terminal is determined based on the first indication information, the first sending power to be used by the terminal in the first time window can be set before the terminal enters the first time window, and consistency of the sending power in DMRS (demodulation reference signal) binding transmission of the terminal or joint channel estimation of a receiving end is guaranteed.

For example, suppose that the UE supports two power classes, power class2 and power class 3, and it is known that power class 3 is default power class, the TDD frame structure used for transmission is in the form of "ddsudddsu", the threshold specified by the domain maxunliktycycle-PC 2-FR1 in the UE capability is 60%, and the first maximum output power is not configured.

If the receiving end (such as a base station) of the data transmission configures the PUSCH retransmission transmission: and if the repetition type A is 16, the UE performs corresponding PUSCH repetition transmission in 16 continuous time slots starting from the time slot n after receiving the scheduling authorization. Before transmission, the UE needs to determine the target power level used:

if the UE calculates that the uplink available slot duty ratio is 6/16 based on tdd-UL-DL-configuration common, it may determine that the first target power level is power class2, i.e., the configured transmission power is set using power class 2;

if the UE calculates that the uplink available timeslot duty cycle is 6/16 based on tdd-UL-DL-configuration common, it may determine that the second target power level is power class2, i.e. apply power requirements (requirements) corresponding to power class 2.

It should be noted that, in the method for determining transmission power provided in the embodiment of the present application, the execution subject may be a device for determining transmission power, or a control module in the device for determining transmission power, which is used for executing the method for determining transmission power. In the embodiment of the present application, a method for determining transmission power performed by a device for determining transmission power is taken as an example, and the device for determining transmission power provided in the embodiment of the present application is described.

As shown in fig. 3, a schematic structural diagram of a device for determining transmit power provided in this embodiment of the present application is a device that can be used to determine transmit power in the foregoing method for determining transmit power, where the device includes:

a first processing module 301, configured to determine, based on the first information, a first transmit power to be applied by the terminal in the first time window.

According to the device for determining the transmission power, the UE determines and sets the transmission power which is not changed continuously in the time window of the joint channel estimation or the DMRS bundling based on the first information before the joint channel estimation or the DMRS bundling is started, so that when the UE is processed according to the transmission power in the subsequent actual joint channel estimation or DMRS bundling process, the consistency of the transmission power of the UE can be ensured, and the performance of demodulation by the joint channel estimation of a receiving end is ensured.

Optionally, the method further comprises: determining the first information in at least one of the following ways:

whether a first maximum output power is configured;

a value of the configured first maximum output power;

the first reporting information is used to indicate at least one of the following:

whether to report an uplink duty ratio threshold value;

and reporting the value of the uplink duty ratio threshold.

According to the method and the device, the configured sending power can be set more conveniently and rapidly on the basis by determining the target power level related to the configured sending power, and the configured sending power is in accordance with the existing protocol regulations and is convenient to maintain.

Optionally, when the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the first processing module, when configured to determine the first target power level, is configured to:

determining any of the second power levels as the first target power level if a first condition is met, otherwise determining the default power level as the first target power level, wherein the first condition comprises at least one of:

the terminal does not contain the uplink duty cycle threshold in the capability report, and the first duty cycle is larger than 50%;

According to the method and the device, the target power level used by the UE in the time window is determined according to the duty ratio corresponding to the uplink available transmission time slot or symbol, the configuration condition of the first maximum output power and/or the report condition of the terminal on the uplink duty ratio threshold in the capability report in the time window of the joint channel estimation or DMRS bundling, the consistency of the UE power in the time window can be maintained, the demodulation performance of the joint channel estimation of the receiving end is ensured, and the coverage capability is improved.

Optionally, when the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the first processing module, when configured to determine the second target power level, is configured to:

determining any of the second power levels as the second target power level if a second condition is satisfied, otherwise determining the default power level as the second target power level, wherein the second condition includes at least one of:

According to the method and the device, the target power level used by the UE in the time window is determined according to the configuration situation of the duty ratio corresponding to the uplink available transmission time slot or symbol to the first maximum output power and/or the reporting situation of the uplink duty ratio threshold in the capability report of the terminal in the time window of the joint channel estimation or DMRS bundling, the consistency of the UE power in the time window can be maintained, the demodulation performance of the joint channel estimation of the receiving end is ensured, and the coverage capability is improved.

Optionally, in a case that the terminal supports a default output power and the second power level, and the first information is determined based on the first indication information, the first processing module, when configured to determine the first information, is configured to:

and under the condition that the terminal carries out uplink transmission of DMRS (demodulation reference signal) binding transmission in the first time window or a receiving end of the DMRS binding transmission carries out joint channel estimation in the first time window, determining the default power level as the first target power level and/or the second target power level based on the first indication information, or determining any one of the second power levels as the first target power level and/or the second target power level.

The target power level of the terminal is determined based on the first indication information, the first sending power to be used by the terminal in the first time window can be set before entering the first time window, and consistency of the sending power in DMRS binding transmission of the terminal or joint channel estimation of a receiving end is ensured.

Optionally, the first indication information includes at least one of:

a signaling indication for configuring the first time window;

an enable indication to maintain power consistency.

Optionally, the first duty cycle is a duty cycle of an uplink transmission available time slot or symbol of the terminal in the first time window, or a duty cycle of the terminal at any set time in the first time window;

tdd-UL-DL-ConfigurationCommon；

tdd-UL-DL-ConfigurationDedicated；

ssb-PositionsInBurst；

configuring an SMTC indication based on timing of synchronization signal block SSB measurements;

type0 — CORESET0 in PDCCH CSS set.

Optionally, the first maximum output power is one of:

maximum output power of co-frequency adjacent cells;

maximum output power of neighboring cells of the same carrier frequency;

the maximum transmit power allowed by the current serving cell.

The determination device of the transmission power in the embodiment of the present application may be a device, a device or an electronic apparatus having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 101, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, and the embodiments of the present application are not limited in particular.

The apparatus for determining transmit power provided in this embodiment of the present application can implement each process implemented in the method embodiment of fig. 2, and is not described here again to avoid repetition.

Optionally, as shown in fig. 4, an embodiment of the present application further provides a communication device 400, which includes a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and executable on the processor 401, for example, when the communication device 400 is a terminal, the program or the instruction is executed by the processor 401 to implement each process of the foregoing method for determining a transmission power, and the same technical effect can be achieved, and details are not repeated here to avoid repetition.

The embodiment of the present application further provides a terminal, which includes a processor and a communication interface, where the processor is configured to determine, based on the first information, a first transmit power to be applied by the terminal in the first time window. The first time window is a duration configured for joint channel estimation or demodulation reference signal (DMRS) bundling transmission by the terminal, and the first transmission power is fixed or has a variation amplitude within a preset threshold value within the duration of the first time window. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect.

Specifically, fig. 5 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application. The terminal 500 includes but is not limited to: at least some of the radio frequency unit 501, the network module 502, the audio output unit 503, the input unit 504, the sensor 505, the display unit 506, the user input unit 507, the interface unit 508, the memory 509, and the processor 510, and the like.

Those skilled in the art will appreciate that the terminal 500 may further include a power supply (e.g., a battery) for supplying power to various components, and the power supply may be logically connected to the processor 510 via a power management system, so as to implement functions of managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 5 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that, in the embodiment of the present application, the input Unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042, and the Graphics processor 5041 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel 5071 and other input devices 5072. A touch panel 5071, also referred to as a touch screen. The touch panel 5071 may include two parts of a touch detection device and a touch controller. Other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in further detail herein.

In this embodiment, the radio frequency unit 501 receives downlink data from a network side device and then processes the downlink data to the processor 510; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 509 may be used to store software programs or instructions as well as various data. The memory 509 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 509 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 510 may include one or more processing units; alternatively, the processor 510 may integrate an application processor, which primarily handles operating system, user interface, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into processor 510.

Wherein, the processor 510 is configured to determine, based on the first information, a first transmit power to be applied by the terminal in the first time window;

According to the terminal provided by the embodiment of the application, the UE determines and sets the continuous and unchangeable transmission power in the time window of the joint channel estimation or the DMRS bundling based on the first information before the joint channel estimation or the DMRS bundling is started, so that the consistency of the transmission power of the UE can be ensured when the UE is processed according to the transmission power in the subsequent actual joint channel estimation or the DMRS bundling process, and the demodulation performance of a receiving end through the joint channel estimation is ensured.

Optionally, the processor 510 is further configured to determine the first information by using at least one of the following manners:

wherein the first configuration information is used for indicating at least one of:

whether a first maximum output power is configured;

a value of the configured first maximum output power;

whether to report an uplink duty ratio threshold value;

and reporting the value of the uplink duty ratio threshold.

According to the embodiment of the application, the first information is determined according to the configuration condition of the first indication information and/or the first maximum output power received by the terminal and the reporting condition of the first duty ratio and/or the uplink duty ratio threshold determined by the terminal, so that the consistency of the transmission power of the terminal is maintained in the first time window according to the first transmission power determined by the first information.

Optionally, under the condition that the terminal supports the mode power class and the second power class and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the processor 510 is further configured to determine any one of the second power classes as the first target power class if a first condition is satisfied, and otherwise, determine the default power class as the first target power class, where the first condition includes at least one of:

the terminal comprises the uplink duty ratio threshold in the capacity report, and the first duty ratio is larger than the uplink duty ratio threshold;

Optionally, when the terminal supports a default power class and the second power class, and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the processor 510 is further configured to determine any one of the second power classes as the second target power class if a second condition is met, and otherwise, determine the default power class as the second target power class, where the second condition includes at least one of:

Optionally, when the terminal supports the default power level and the second power level and the first information is determined based on the first indication information, the processor 510 is further configured to determine, based on the first indication information, that the default power level is the first target power level and/or the second target power level, or determine that any one of the second power levels is the first target power level and/or the second target power level, when the terminal performs uplink transmission of DMRS bundle transmission in the first time window or a receiving end of DMRS bundle transmission performs joint channel estimation in the first time window.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing method for determining a transmission power, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the foregoing method for determining a transmission power, and can achieve the same technical effect, and details are not repeated here to avoid repetition.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement each process of the foregoing method for determining a transmit power, and the same technical effects can be achieved, and are not described herein again to avoid repetition.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. A method for determining transmit power, comprising:

2. The method for determining transmit power of claim 1, further comprising: determining the first information in at least one of the following ways:

whether a first maximum output power is configured;

a value of the configured first maximum output power;

whether to report an uplink duty ratio threshold value;

and reporting the value of the uplink duty ratio threshold.

3. The method of claim 2, wherein the first information is a first target power level and/or a second target power level applied by the terminal in the first time window;

4. The method for determining transmission power according to claim 3, wherein the terminal supports a default power class, or the terminal supports a default power class and a second power class; wherein the maximum output power of the second power level is higher than the maximum output power of the default power level.

5. The method of claim 4, wherein in a case that the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reported information, the determining, by the terminal, the first target power level comprises:

the terminal determines any one of the second power levels as the first target power level when a first condition is met, otherwise, determines the default power level as the first target power level, wherein the first condition includes at least one of the following:

6. The method of claim 4, wherein when the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the terminal determines the second target power level, comprising:

the terminal does not contain the uplink duty ratio threshold value in the capacity report, the first duty ratio is not more than 50%, and the first maximum output power is not configured;

7. The method of claim 4, wherein in a case that the terminal supports a default power level and the second power level and the first information is determined based on the first indication information, the terminal determines the first information, and comprises:

and under the condition that the terminal carries out uplink transmission of DMRS (demodulation reference signal) binding transmission in the first time window or a receiving end of the DMRS binding transmission carries out joint channel estimation in the first time window, the terminal determines the default power level to be the first target power level and/or the second target power level based on the first indication information, or determines any one of the second power levels to be the first target power level and/or the second target power level.

8. The method for determining transmission power according to any of claims 2-4 and 7, wherein the first indication information comprises at least one of:

a signaling indication for configuring the first time window;

an enable indication to maintain power consistency.

9. Method for determining transmission power according to any of claims 2-6, wherein said first maximum output power is one of:

maximum output power of co-frequency adjacent cells;

maximum output power of adjacent cells of the same carrier frequency;

the maximum transmit power allowed by the current serving cell.

10. An apparatus for determining a transmission power, comprising:

11. The apparatus for determining transmit power of claim 10, wherein the first processing module is further configured to: determining the first information in at least one of the following ways:

whether a first maximum output power is configured;

a value of the configured first maximum output power;

whether to report an uplink duty ratio threshold value;

and reporting the value of the uplink duty ratio threshold.

12. The apparatus for determining transmission power according to claim 11, wherein the first information is a first target power level and/or a second target power level applied by the terminal in the first time window;

the first target power level is used for setting the configured first transmission power, and the power requirement or radio frequency index corresponding to the second target power level is used for being applied to the first target power level.

13. The apparatus for determining transmission power according to claim 12, wherein the terminal supports a default power class, or the terminal supports a default power class and a second power class; wherein the maximum output power of the second power level is higher than the maximum output power of the default power level.

14. The apparatus of claim 13, wherein in a case that the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the first processing module, when configured to determine the first target power level, is configured to:

determining any of the second power levels to be the first target power level if a first condition is satisfied, otherwise determining the default power level to be the first target power level, wherein the first condition includes at least one of:

15. The apparatus of claim 13, wherein in a case that the terminal supports a default power level and the second power level and the first information is determined based on the first configuration information, the first duty cycle, and/or the first reporting information, the first processing module, when configured to determine the second target power level, is configured to:

16. The apparatus of claim 13, wherein in a case that the terminal supports a default power level and the second power level and the first information is determined based on the first indication information, the first processing module, when configured to determine the first information, is configured to:

17. The apparatus for determining transmission power according to any of claims 11-13 and 16, wherein the first indication information comprises at least one of:

a signaling indication for configuring the first time window;

an enable indication to maintain power consistency.

18. The apparatus for determining transmission power according to any of claims 11-15, wherein the first maximum output power is one of:

maximum output power of co-frequency adjacent cells;

maximum output power of neighboring cells of the same carrier frequency;

the maximum transmit power allowed by the current serving cell.

19. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the method for determining transmit power according to any one of claims 1 to 9.

20. A readable storage medium, on which a program or instructions are stored, which, when executed by a processor, carry out the steps of the method for determining a transmission power according to any one of claims 1 to 9.