KR20210116069A - An electronic device for providing a message chat service and a method thereof - Google Patents

Abstract

Various embodiments of the present disclosure relate to an electronic device for controlling the transmission power of at least a part of symbols transmitting data and a reference signal in one uplink, and a control method thereof. The electronic device may acquire a modulation method to be used for transmission of a data symbol in the uplink, adjust transmission power for a part of data symbols and reference signal symbols to be transmitted in one transmission unit in consideration of a structure of an uplink channel when the acquired modulation method has a relatively small peak-to-average power ratio (PAPR) compared to other modulation method, and multiplex and transmit the data symbols and reference signal symbols to the uplink channel using the adjusted transmission power.

Description

Electronic device for uplink power control and method therefor

Various embodiments of the present disclosure relate to an electronic device for controlling the power of a symbol to be transmitted in an uplink, and a method for controlling the same.

New wireless (radio new, NR) communication system (such as: 5 ^th -generation communication system or a communication system pre-5G) is before the communication system: the radio in the increase (for example 4G (4 ^th -generation) communication system) It was developed and commercialized to meet the traffic demand. For this reason, the NR communication system is also called a 4G network beyond (beyond 4G network) communication system or an LTE system after (post LTE) communication system.

The NR communication system uses a high-frequency band as a frequency resource to provide a high data rate. In the NR communication system, beamforming, massive multi-input multi-output (massive MIMO), full dimensional MIMO: FD-MIMO, array antenna, analog Analog beam-forming, or large scale antenna techniques have been applied. The above applied techniques can alleviate the path loss of radio waves in a high frequency band or increase the propagation distance of radio waves in the NR communication system.

The NR communication system is an advanced small cell, an advanced small cell, a cloud radio access network (cloud RAN), an ultra-dense network, and a device to device communication system. Consider the adoption of technologies such as communication: D2D), wireless backhaul, moving network, cooperative communication, coordinated multi-points (CoMP), or receive interference cancellation; have.

In addition, the NR communication system includes hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC), which are advanced coding modulation (ACM) methods, and filter bank multi carrier (FBMC), which is an advanced access technology, Applications of non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA) are also being considered.

The NR communication system in which various technologies discussed above have been introduced can improve communication performance so that high-capacity information can be processed at a high speed. For example, the NR communication system can provide various services such as multimedia services or Internet of things (IoT) services requiring high quality, high capacity, high speed, or stability.

The NR communication system may support communication through downlink and uplink. The downlink may be a path through which the base station transmits a signal to the user terminal (hereinafter referred to as 'downlink transmission'), and the uplink is a path through which the user terminal transmits a signal to the base station (hereinafter referred to as 'uplink transmission'). ) can be a path.

For example, for uplink transmission, the base station may allocate an uplink radio resource to a user terminal. The user terminal may perform uplink transmission using the uplink radio resource allocated by the base station.

In the NR communication system, the user terminal may apply various modulation schemes during uplink transmission. In particular, a Pi/2 binary phase shift keying (BPSK) scheme is introduced as a modulation scheme for uplink data transmission in an NR communication system. The pi/2-BPSK method has a peak power to average power ratio compared to other modulation methods such as a quadrature phase shift keying (QPSK) method, 16 quadrature amplitude modulation (16 QAM), and 64 QAM. It has a small (peak-to-average power ratio, PAPR) feature. Due to this feature, when multiplexing a data symbol and a reference signal symbol (eg, a DMRS symbol) and transmitting it on the uplink, the PAPR of the data symbol modulated by the pi/2-BPSK method is relatively higher than the PAPR of the reference signal symbol. can be small as

According to various embodiments of the present disclosure, there are provided an electronic device for controlling transmission power of at least some symbols among a plurality of symbols for transmitting data constituting one uplink transmission and a plurality of symbols for transmitting a reference signal, and a method for controlling the same. can provide

The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems within the range that can be clearly understood by those of ordinary skill in the art to which various embodiments to be proposed in the description below belong Challenges may be predictable.

According to various embodiments of the present disclosure, an electronic device identifies a communication module configured to multiplex a data symbol and a reference signal symbol and transmit it through an uplink channel and a modulation method to be used for transmitting the data symbol, and the checked modulation method is different When it has a relatively small peak power to average power ratio compared to the modulation scheme, it is configured to adjust the transmission power of some of the data symbols and reference signal symbols to be transmitted in one transmission unit in consideration of the structure of the uplink channel. It may include at least one processor.

According to various embodiments of the present disclosure, a method for controlling uplink power in an electronic device includes an operation of checking a modulation scheme to be used for data symbol transmission and a peak power band in which the checked modulation scheme is relatively small compared to other modulation schemes. When the average power ratio is obtained, the operation of adjusting the transmission power of some of the data symbols to be transmitted in one transmission unit and the reference signal symbols in consideration of the structure of the uplink channel may be included.

According to various embodiments of the present disclosure, the electronic device adjusts the transmission power of some symbols within one transmission unit in which a data symbol and a reference signal symbol are multiplexed and transmitted, thereby increasing the data reception success probability of the base station. A high data reception success probability of the base station may increase cell coverage for data transmission/reception.

The effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects within a range that can be clearly understood by those of ordinary skill in the art to which various embodiments to be proposed in the description below belong may be predicted.

1 is a diagram illustrating a block configuration of an electronic device 101 according to various embodiments of the present disclosure;
2 is a diagram illustrating an example of signaling for uplink transmission in a wireless network, according to various embodiments of the present disclosure;
FIG. 3 is a diagram 300 illustrating a structure of an electronic device 101 (eg, the electronic device 101 of FIG. 1 ) for uplink transmission in a wireless network according to various embodiments of the present disclosure;
4 is a diagram 400 illustrating a structure for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure;
5 is a diagram illustrating a control flow 500 for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure;
6 is a diagram illustrating a control flow 600 for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure;
7 is a diagram illustrating an example of resource allocation for an uplink by the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various proposed embodiments of the present disclosure; and
8(a) to 8(d) are diagrams illustrating examples of a physical uplink shared channel (PUSCH) structure to which various embodiments of the present disclosure are applied.

Hereinafter, various embodiments to be proposed in the present disclosure will be described in detail with reference to the accompanying drawings. However, in the drawings for convenience of description, the size of the components may be exaggerated or reduced. For example, it should be noted that the size and thickness of each component shown in the drawings are arbitrarily indicated for convenience of description, and various embodiments to be proposed in the present disclosure are not necessarily limited to the illustrated bar.

1 is a diagram illustrating a block configuration of an electronic device 101 according to various embodiments of the present disclosure.

Referring to FIG. 1 , in a network environment 100 , the electronic device 101 communicates with the electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as a single integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, the program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to an embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190) to the volatile memory 132 . may be loaded into the volatile memory 132 , process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and an auxiliary processor 123 (eg, a graphic processing unit or an image signal processor) that can be operated independently or together with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 may be, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as a part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). The data may include, for example, input data or output data for software (eg, the program 140 ) and instructions related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134 .

The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system 142 , middleware 144 , or an application 146 .

The input device 150 may receive a command or data to be used in a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

The sound output device 155 may output a sound signal to the outside of the electronic device 101 . The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive incoming calls. According to an embodiment, the receiver may be implemented separately from or as a part of the speaker.

The display device 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The sound may be output through the electronic device 102 (eg, a speaker or a headphone).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more specified protocols that may be used for the electronic device 101 to directly or wirelessly connect with an external electronic device (eg, the electronic device 102 ). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101 . According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101 . According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104), or the server 108). It can support the establishment of and communication performance through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to an embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or IrDA (infrared data association)) or a second network 199 (eg, a cellular network, the Internet, or It can communicate with an external electronic device over a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module 197 may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from among the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same or a different type of the electronic device 101 . According to an embodiment, all or part of the operations performed by the electronic device 101 may be executed by one or more of the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. The one or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

In the present disclosure, various embodiments for controlling the transmission power of some symbols among data symbols and reference signal symbols to be transmitted through an uplink channel by an electronic device (eg, the electronic device 101 of FIG. 1 ) will be proposed. The electronic device controls the transmission power in consideration of, for example, the transmission power of the data symbol (hereinafter referred to as 'data transmission power') and the transmission power of the reference signal symbol (hereinafter referred to as 'reference signal transmission power'). It is possible to determine one or a plurality of target symbols and transmit power of the one or a plurality of target symbols. The uplink channel may be, for example, a physical uplink shared channel (PUSCH).

According to various embodiments of the present disclosure, the electronic device may check a radio resource for uplink transmission by receiving an instruction from a network, and determine the structure of an uplink channel for transmitting a data symbol and a reference signal symbol based on the checked radio resource. can decide More specifically, the electronic device may receive a network scheduling, ie, uplink transmission instruction, through downlink control information (DCI) provided by a physical downlink control channel (PDCCH).

According to various embodiments of the present disclosure, the electronic device may check whether uplink transmission is permitted or not and a radio resource for uplink transmission by receiving an instruction from a network, and based on the checked radio resource, a data symbol and a reference signal symbol It is possible to determine the structure of an uplink channel through which to transmit . The electronic device may receive uplink transmission configuration information through at least one of higher layer signaling and/or DCI provided by PDCCH. The electronic device may configure uplink transmission based on uplink transmission configuration information provided from the network, and transmit a signal through the uplink without a separate uplink scheduling procedure using PDCCH based on the uplink transmission configuration. . Transmitting a signal through the uplink without the uplink scheduling procedure may be referred to as, for example, 'non-acknowledgment-based uplink transmission'. The 'non-approval-based uplink transmission' may be, for example, 'non-approval-based PUSCH transmission'.

According to various embodiments of the present disclosure, an electronic device performs uplink transmission with data symbols constituting uplink transmission in consideration of _{PAPR (PARA DATA} and PAPR _{RS ) or peak power for data transmission power and reference signal transmission power during uplink transmission.} It is possible to adjust (increase or decrease) the transmission power for some of the reference signal symbols. The electronic device may additionally consider a modulation scheme applied to a data symbol and/or a type of a symbol transmitted through an uplink channel in order to adjust the transmission power. The type of symbol transmitted through the uplink channel may be determined by, for example, whether uplink control information to be transmitted from a PUSCH to an uplink control channel (PUCCH) is transmitted. The type of symbol transmitted on the uplink channel may also be determined by, for example, the type of data transmitted on the PUSCH. The data type may be, for example, enhanced mobile broadband (eMBB) data and ultra-reliable & low latency communications (URLLC) data.

According to various embodiments of the present disclosure, the electronic device may perform uplink power control such that, during uplink transmission, the transmission power of symbols constituting one uplink transmission is maintained within a predetermined threshold range. For example, the electronic device increases the transmit power of a symbol having a relatively low transmit power or reduces the total peak power by clipping the transmit power of the entire symbol, and then converts the transmit power of the data symbol to the transmit power. can increase

2 is a diagram illustrating an example of signaling for uplink transmission in a wireless network according to various embodiments of the present disclosure.

Referring to FIG. 2 , in operation 211 according to an embodiment, the base station 210 (eg, the electronic device 104 of FIG. 1 ) transmits uplink scheduling information to the user terminal 220 (eg, the electronic device of FIG. 1 ). 101)) can be provided. The uplink scheduling information may be used, for example, for the user terminal 220 to perform uplink transmission.

(not shown) According to an embodiment, the base station 210 (eg, the electronic device 104 of FIG. 1 ) provides uplink configuration information to the user terminal 220 (eg, the electronic device 101 of FIG. 1 ). can do. The uplink configuration information may be used, for example, by the user terminal 220 to perform uplink transmission. Referring to FIG. 2 , according to an embodiment, the base station 210 (eg, the electronic device of FIG. 1 ). The device 104 may provide uplink configuration information to the user terminal 220 (eg, the electronic device 101 of FIG. 1 ). (configuration message not shown) In operation 211 , the base station 210 (eg: The electronic device 104 of FIG. 1 may provide an indication of whether to activate or deactivate uplink transmission to the user terminal 220 (eg, the electronic device 101 of FIG. 1 ). The uplink configuration information may be used, for example, by the user terminal 220 to configure non-approval-based uplink transmission. In the case of the non-approval-based uplink transmission, the user terminal 220 can perform uplink transmission without separate scheduling of the base station 210 . That is, the user terminal 220 may perform uplink transmission without receiving uplink scheduling.

According to an embodiment, the uplink scheduling information may include various parameters in addition to resource allocation information for the user terminal 220 to transmit a signal (eg, a data symbol and/or a reference signal symbol) through the PUSCH. The resource allocation information is, for example, time axis resource allocation information, frequency axis resource allocation information, frequency hopping, demodulation reference signal (DMRS) setting, modulation and coding scheme (MCS) table , MCS, resource block group (resource block group, RBG) size, the number of repeated transmissions, and may include at least one of a redundancy version (RV).

According to an embodiment, the uplink configuration information may include various parameters in addition to resource allocation information for the user terminal 220 to transmit a signal (eg, a data symbol and/or a reference signal symbol) through the PUSCH. The resource allocation information may include, for example, at least one of time axis resource allocation information, frequency axis resource allocation information, and period information. Parameters for transmitting the PUSCH are, for example, frequency hopping, demodulation reference signal (DMRS) configuration, modulation and coding scheme (MCS) table, MCS, resource block group (resource block) group, RBG) size, the number of repeated transmissions, or a redundancy version (RV).

According to an embodiment, the base station 210 may provide the uplink configuration information to the user terminal 220 through at least one of higher layer signaling (eg, RRC signaling) or DCI provided through PDCCH.

In operation 221 according to an embodiment, the user terminal 220 may perform uplink transmission based on uplink scheduling information provided from the base station 210 .

In operation 221 according to an embodiment, the user terminal 220 configures uplink transmission based on uplink configuration information provided from the base station 210 and performs non-approval based uplink transmission based on the uplink transmission configuration. can do. The user terminal 220 may, for example, transmit a data symbol and a reference signal symbol through the PUSCH without receiving uplink scheduling based on the uplink transmission configuration. The user terminal 220 may transmit one or more symbols in one uplink transmission. One or a plurality of symbols constituting the one-time uplink transmission may include at least one data symbol and at least one reference signal symbol. The at least one data symbol may be a different type of data symbol. For example, the at least one data symbol may include, for example, an eMBB data symbol and a URLLC data symbol. The at least one data symbol may contain data information or control information.

According to an embodiment, the user terminal 220 may determine whether PUSCH transmission is possible and obtain the PUSCH structure. The user terminal 220 may determine whether PUSCH transmission is possible and adjust the transmission power of a symbol to be transmitted through the PUSCH in consideration of the PUSCH structure.

According to an embodiment, the user terminal 220 may receive uplink configuration information or uplink scheduling information from the base station 210 through at least one of higher layer signaling or DCI provided through PDCCH. The user terminal 220 may check whether PUSCH is transmitted and the PUSCH structure based on uplink configuration information or uplink scheduling information. The user terminal 220 may adjust (increase or decrease) the transmission power of some of the data symbols and reference signal symbols to be transmitted through the PUSCH based on the confirmed PUSCH transmission status and PUSCH structure. The user terminal 220 may, for example, increase the transmission power of some data symbols or all data symbols to be transmitted through PUSCH.

According to an embodiment, the user terminal 220 should be able to transmit a signal through the uplink without uplink scheduling information in order to provide various services and/or support a high data rate. When the user terminal 220 transmits a signal through the uplink without uplink scheduling information, for example, it may be referred to as 'non-approval-based PUSCH transmission'. When an uplink signal is transmitted without the uplink scheduling information, uplink configuration information such as resource allocation and MCS for uplink transmission may be configured by higher layer signaling and/or DCI transmitted through PDCCH.

Hereinafter, various embodiments to be proposed in the present disclosure will be described in more detail.

According to various embodiments, in order to obtain a structure of a PUSCH that is an uplink channel, the user terminal 220 should be able to determine a mapping type of the PUSCH. The mapping type of the PUSCH may be determined as one of two mapping types (eg, mapping type A and mapping type B). The user terminal 220 may have different transmission start symbols and transmission durations in PUSCH for each mapping type.

Table 1 below defines a transmission start symbol ( S ) and a transmission length ( L ) for each mapping type of PUSCH.

Mapping type Normal Cyclic Prefix Extended cyclic prefix S L S+L S L S+L type A 0 {4… } {4… } 0 {4… } {4… } type B {0… ,13} {One… } {One… } {0… 11} {One… } {One… }

In <Table 1>, in the case of mapping type A, symbol 0 is always used for both a normal cyclic prefix and an extended cyclic prefix, and the number of symbols is between normals. It can be used from 4 to 14 for the click prefix, and from 4 to 12 for the extended cyclic prefix.

In <Table 1>, in the case of mapping type B, as the start symbol, one of 0 to 13 may be used for the normal cyclic prefix, and one of 0 to 11 may be used for the extended cyclic prefix. The number may be used from 1 to 14 for the normal cyclic prefix and from 1 to 12 for the extended cyclic prefix.

For example, time domain allocation resource information for PUSCH (PUSCH-TimeDomainResourceAllocation IE) may include a slot unit offset (K2), a mapping type (mappingType, which determines mapping type A or B), a start symbol position and length (startSymbolAndLength). have. The start symbol position and length included in the time domain allocation resource information may be, for example, encoded information. The time domain allocation resource information may be configured for a plurality of user terminals, and one of time domain allocation resource information configured for the plurality of user terminals is transmitted in DCI format 0-0 or DCI format 0-1 through a PDCCH. It may be provided to the user terminal through one field (eg, time domain resource assignment).

According to an embodiment, at least one reference signal symbol may exist in the PUSCH transmitted by the user terminal 220 . For example, in the case of mapping type A, the first reference signal symbol in the PUSCH is the third or fourth slot for each cell through a predetermined parameter (eg, dmrs-TypeA-Position parameter) in the serving cell configuration common information element (ServingCellConfigCommon IE). It can be specified as a symbol. For example, in the case of mapping type B, the first reference signal symbol in the PUSCH may be designated as the first symbol in the PUSCH. The presence and position of the additional reference signal symbol may be set in the user terminal 220 through a predetermined parameter (eg, dmrs-AdditionalPosition parameter) in the DMRS uplink configuration information element (DMRS-UplinkConfig IE). In addition, the maximum number of first reference signal symbols in the PUSCH may be set in the user terminal 220 through a predetermined parameter (eg, maxLength parameter) in the DMRS uplink configuration information element (DMRS-UplinkConfig IE).

According to an embodiment, the user terminal 210 may support a configuration for uplink transmission differently for each type for transmission of a non-approval-based uplink channel (eg, PUSCH). For example, the disapproval-based PUSCH transmission type of the user terminal 210 includes 'first type (non-acknowledgment-based PUSCH transmission type-1)' for configuring uplink transmission using higher layer signaling, and higher layer signaling and downlink. It can be divided into a 'second type (non-acknowledgment-based PUSCH transmission type-2)' that configures uplink transmission using a control channel (eg, PDCCH).

- First type (type 1) (non-approval-based PUSCH transmission type 1): the base station 210 sets uplink transmission in the user terminal 220 using higher layer signaling and/or activation of uplink transmission ) or deactivation (release). In this case, the user terminal 220 uses uplink configuration information provided from the base station 210 by higher layer signaling to configure PUSCH transmission and/or activate uplink transmission. ) or can be disabled (released). For example, the user terminal 220 may configure MCS information through mcsAndTBS included in rrc-ConfiguredUplinkGrant in ConfiguredGrantConfig IE (Information Element).

- Second type (type 2) (non-approval-based PUSCH transmission type 2): the base station 210 configures uplink transmission in the user terminal 220 and/or activates uplink transmission by using higher layer signaling and PDCCH (activation) or deactivation (release) instructing the method. In this case, the user terminal 220 may configure PUSCH transmission using higher layer signaling, and may activate or deactivate uplink transmission using PDCCH. For example, the base station 210 may instruct activation or deactivation of PUSCH transmission through the DCI format of the PDCCH scrambled with configured scheduling-RNTI (CS-RNTI). In this case, the user terminal 220 may activate or deactivate PUSCH transmission by monitoring the DCI format of the PDCCH scrambled with CS-RNTI. For example, a cyclical redundancy check (CRC) of DCI format 0-0 or DCI format 0-1 is scrambled with CS-RNTI, and several bit fields present in DCI format 0-0 or DCI format 0-1 Among the bit fields, 'NDI field value for activated TB' is 0, 'HARQ process number field value' is all 0, 'redundancy version field value' is all 0 If set, the modulation scheme and the coding scheme may be determined by 'MCS' in the corresponding DCI format 0-0 or DCI format 0-1.

Hereinafter, disapproval-based PUSCH transmission type 1 and disapproval-based PUSCH transmission type 2 according to various embodiments of the present disclosure will be described in more detail.

(1) In case of non-acknowledgment-based PUSCH transmission type 1

According to an embodiment, the base station 210 may configure uplink transmission of the user terminal 220 using higher layer signaling. The base station 210 may set, for example, resource allocation information for the uplink channel and parameters for transmitting the uplink channel to the user terminal 220 through higher layer signaling. Table 2 below shows an example of configuration information provided by the base station 210 to the user terminal 220 through higher layer signaling for the first type.

ConfiguredGrantConfig ::= SEQUENCE {
frequencyHopping ENUMERATED {mode1, mode2} cg-DMRS-Configuration DMRS-UplinkConfig,
mcs-Table ENUMERATED {qam256, spare1}
mcs-TableTransformPrecoder (MCS table) ENUMERATED {qam256, spare1}
uci-OnPUSCH (UCI on PUSCH or not) SetupRelease { CG-UCI-OnPUSCH },
resourceAllocation (resource allocation type) ENUMERATED { resourceAllocationType0, resourceAllocationType1, dynamicSwitch },
rbg-Size (RBG size) ENUMERATED {config2}
powerControlLoopToUse(closed loop power control) ENUMERATED {n0, n1},
p0-PUSCH-Alpha (power adjustment parameter) P0-PUSCH-AlphaSetId,
transformPrecoder (whether transform precoding is applied) ENUMERATED {enabled}
nrofHARQ-Processes (number of HARQ processes) INTEGER(1..16),
repK (number of iterations) ENUMERATED {n1, n2, n4, n8},
repK-RV (redundant version) ENUMERATED {s1-0231, s2-0303, s3-0000}
periodicity ENUMERATED {
sym2, sym7, sym1x14, sym2x14, sym4x14, sym5x14, sym8x14, sym10x14, sym16x14, sym20x14,
sym32x14, sym40x14, sym64x14, sym80x14, sym128x14, sym160x14, sym256x14, sym320x14, sym512x14,
sym640x14, sym1024x14, sym1280x14, sym2560x14, sym5120x14,
sym6, sym1x12, sym2x12, sym4x12, sym5x12, sym8x12, sym10x12, sym16x12, sym20x12, sym32x12,
sym40x12, sym64x12, sym80x12, sym128x12, sym160x12, sym256x12, sym320x12, sym512x12, sym640x12,
sym1280x12, sym2560x12
},
configuredGrantTimer (configured grant timer) INTEGER (1..64)
rrc- ConfiguredUplinkGrant SEQUENCE {
timeDomainOffset (time domain offset) INTEGER (0..5119),
timeDomainAllocation INTEGER (0..15),
frequencyDomainAllocation BIT STRING (SIZE(18)),
antennaPort INTEGER (0..31),
dmrs-SeqInitialization (DMRS sequence initialization) INTEGER (0..1)
precodingAndNumberOfLayers(precoding and number of layers) INTEGER (0..63),
srs-ResourceIndicator (SRS resource indicator) INTEGER (0..15),
mcsAndTBS (MCS and TBS) INTEGER (0..31),
frequencyHoppingOffset INTEGER (1.. maxNrofPhysicalResourceBlocks-1) OPTIONAL, -- Need M
pathlossReferenceIndex(Path-loss reference index) INTEGER(0..maxNrofPUSCH-PathlossReferenceRSs-1),
...
}
}

Referring to <Table 2>, the base station 210 encodes the position and length of the 'PUSCH mapping type' and 'start symbol by using the 'timeDomainAllocation' parameter present in the rrc-ConfiguredUplinkGrant in the ConfiguredGrantConfig IE (Information Element). It is possible to instruct the user terminal 220 to set 'one information' and to instruct the user terminal 220 to set 'offset information associated with SFN=0' using the 'timeDomainOffset' parameter. In addition, the base station 210 may instruct the user terminal 220 to set the 'periodic information' using the 'periodicity' parameter, and use the 'DMRS-UplinkConfig IE' in the ConfiguredGrantConfig IE to provide 'DMRS related information' It may instruct the user terminal 220 to set.

According to an embodiment, when receiving uplink configuration information for non-approval-based PUSCH transmission type 1 from the base station 210 , the user terminal 220 uses the periodically configured uplink resource from the base station 210 . PUSCH can be transmitted without separate scheduling. Various parameters necessary for transmitting the PUSCH (eg, frequency hopping, DMRS setting, MCS table, RBG size, number of repeated transmissions, RV, number of precoding and layers, antenna port, frequency hopping offset, etc.) are determined by the base station 210 You can follow the value set by .

According to an embodiment, the user terminal 220 is based on the information transmitted by the base station 210 through higher layer signaling, the PUSCH position in radio resources, the position of the data symbol(s) in the PUSCH, and the DMRS symbol in the PUSCH. The location of (s) can be determined. The user terminal 220 may increase the transmission power of data symbol(s) in the PUSCH.

(2) In case of non-acknowledgment-based PUSCH transmission type 2

According to an embodiment, the base station 210 may configure uplink transmission through higher layer signaling, and may configure activation and deactivation of uplink transmission using DCI delivered by PDCCH.

Table 3 below shows an example of configuration information provided by the base station 210 to the user terminal 220 through higher layer signaling for the second type.

ConfiguredGrantConfig ::= SEQUENCE {
frequencyHopping ENUMERATED {mode1, mode2}
cg-DMRS-Configuration DMRS-UplinkConfig ,
mcs-Table ENUMERATED {qam256, spare1}
mcs-TableTransformPrecoder (MCS table) ENUMERATED {qam256, spare1}
uci-OnPUSCH (UCI on PUSCH or not) SetupRelease { CG-UCI-OnPUSCH },
resourceAllocation (resource allocation type) ENUMERATED { resourceAllocationType0, resourceAllocationType1, dynamicSwitch },
rbg-Size (RBG size) ENUMERATED {config2}
powerControlLoopToUse(closed loop power control) ENUMERATED {n0, n1},
p0-PUSCH-Alpha (power adjustment parameter) P0-PUSCH-AlphaSetId,
transformPrecoder (whether transform precoding is applied) ENUMERATED {enabled}
nrofHARQ-Processes (number of HARQ processes) INTEGER(1..16),
repK (number of iterations) ENUMERATED {n1, n2, n4, n8},
repK-RV (redundant version) ENUMERATED {s1-0231, s2-0303, s3-0000}
periodicity ENUMERATED {
sym2, sym7, sym1x14, sym2x14, sym4x14, sym5x14, sym8x14, sym10x14, sym16x14, sym20x14,
sym32x14, sym40x14, sym64x14, sym80x14, sym128x14, sym160x14, sym256x14, sym320x14, sym512x14,
sym640x14, sym1024x14, sym1280x14, sym2560x14, sym5120x14,
sym6, sym1x12, sym2x12, sym4x12, sym5x12, sym8x12, sym10x12, sym16x12, sym20x12, sym32x12,
sym40x12, sym64x12, sym80x12, sym128x12, sym160x12, sym256x12, sym320x12, sym512x12, sym640x12,
sym1280x12, sym2560x12
},
configuredGrantTimer (configured grant timer) INTEGER (1..64)
}

Referring to <Table 3>, the base station 210 may instruct the user terminal 220 to set the 'periodic information' using the 'periodicity' parameter, and select the 'DMRS-UplinkConfig IE' in the ConfiguredGrantConfig IE. It can be used to instruct the user terminal 220 to set 'DMRS-related information'. The base station 210, for example, through higher layer signaling to set some (eg, period information, etc.) of information on a specific time/frequency resource that allows non-approval-based PUSCH transmission to the user terminal 220 . can direct In addition, the base station 210, for example, various parameters (eg, frequency hopping, DMRS configuration, MCS table, RBG size, number of repeated transmissions) for transmission of an uplink channel (eg, PUSCH) to the user terminal 220 . , RV, etc.) can be set as higher layer signaling.

Also, the base station 210 may configure a CS-RNTI to the user terminal 220 . The base station 210 may provide the DCI format scrambled using CS-RNTI to the user terminal 220 through the PDCCH. The scrambled DCI may be used for the purpose of activating the second type (ie, the purpose of allowing non-approval-based PUSCH to the UE).

According to an embodiment, the base station 210 may provide configuration information that is not provided through higher layer signaling to the user terminal 220 through the PDCCH. According to an embodiment, the base station 210 may provide the user terminal 220 ) to instruct a trigger for disapproval-based PUSCH transmission using the values of specific fields, and at the same time provide specific time allocation information and frequency allocation information for a resource region in which disapproval-based PUSCH transmission can be performed, such as DCI The user terminal 220 may be notified with the resource allocation field of .

According to an embodiment, the user terminal 220 may monitor the DCI format scrambled with CS-RNTI. The DCI scrambled with the CS-RNTI may be used to indicate activation of the non-acknowledgment-based PUSCH transmission type 2. Activation of the non-approval-based PUSCH transmission type 2 may mean, for example, allowing the UE to transmit the non-approval-based PUSCH transmission.

Table 4 below defines an example of a condition for determining a trigger for non-approval-based PUSCH transmission.

DCI format 0_0/0_1 HARQ process number set to all '0's Redundancy version set to '00'

According to <Table 4>, in the user terminal 220, both the HARQ process number and the redundancy version included in the DCI field of the DCI format scrambled with the received CS-RNTI are '0'. ', it may be determined that non-approval-based PUSCH transmission is triggered by the base station 210 .

According to an embodiment, the user terminal 220 is a resource for PUSCH transmission based on time resource allocation information and frequency resource allocation information obtained from DCI scrambled with CS-RNTI corresponding to the period information set to the upper layer and the trigger. area can be obtained. The user terminal 220 may perform PUSCH transmission in the acquired resource region without separate scheduling of the base station 210 . That is, after receiving the DCI corresponding to the trigger, the user terminal 220 may transmit the PUSCH without additional scheduling of the base station 210 by using periodically set resources. The user terminal 220 includes some parameters defined in <Table 3>, such as DMRS configuration information, MCS table, RBG size, number of repeated transmissions, RV, and power control parameters, among various parameters necessary for transmitting the PUSCH. ) can all follow the value set by higher layer signaling. The user terminal 220 sets other parameters (eg, parameters corresponding to fields of DCI format 0_0/0_1 such as MCS, number of precoding and layers, antenna port, and frequency hopping offset) using DCI. can follow

As described above, the user terminal 220 determines whether to transmit the PUSCH based on information included in the DCI transmitted through higher layer signaling and the PDCCH, and when the PUSCH needs to be transmitted, the PUSCH location on radio resources, It is possible to determine the data symbol(s) position in the PUSCH and the DMRS symbol(s) position in the PUSCH. The user terminal 220 may increase the transmission power of the data symbol(s) to be transmitted at the previously determined position.

According to an embodiment, the user terminal 220 may additionally consider a modulation scheme to be applied to a data symbol to be transmitted through the PUSCH in addition to the configuration for uplink transmission in order to adjust the transmission power for the uplink. The user terminal 220 may additionally consider whether an uplink control signal is transmitted through the PUSCH in order to adjust the transmission power for the uplink. The user terminal 220 may consider the type of data to be transmitted through an uplink channel when determining a symbol for which transmission power is to be adjusted.

FIG. 3 is a diagram 300 illustrating a structure of an electronic device 101 (eg, the electronic device 101 of FIG. 1 ) for uplink transmission in a wireless network according to various embodiments of the present disclosure. The electronic device 101 may be a user terminal (eg, the user terminal 220 of FIG. 2 ) capable of transmitting a data symbol and/or a reference signal symbol through an uplink channel.

Referring to FIG. 3 , the electronic device 101 according to an embodiment includes a communication module 320 (eg, the communication module 190 of FIG. 1 ) or at least one processor 310 (eg, the processor of FIG. 1 ). 120)) at least.

According to an embodiment, the communication module 320 performs downlink reception and uplink transmission with a base station (eg, the base station 210 of FIG. 2 ) through a network (eg, the second network 199 of FIG. 1 ). can do. The communication module 320, for example, uplink configuration information or scheduling through higher layer signaling (eg, radio resource control signaling, hereinafter referred to as 'RRC signaling') or DCI transmitted through PDCCH The communication module 320 may check whether PUSCH is transmitted, a modulation scheme to be applied for uplink transmission, and an uplink channel (eg, PUSCH) structure based on the received uplink configuration information. The communication module 320, for example, when Pi/2-BPSK is determined as a modulation scheme to be applied to a data symbol, adjusts transmission power for some or all of the symbols included in one uplink transmission unit. For example, if Pi/2-BPSK is determined as a modulation method to be applied to a data symbol, the communication module 320 may increase the transmission power of some or all of the data symbols included in one uplink transmission unit. The communication module 320 may transmit a data symbol and/or a reference signal symbol through a PUSCH based on, for example, uplink configuration information and/or uplink scheduling information.

According to an embodiment, the communication module 320 may adjust the transmission power of some of the data symbols and/or reference signal symbols to be transmitted through the PUSCH in response to the control of the processor 310 . The communication module 320, for example, increases the transmission power of a data symbol or a part of the control symbol so that the transmission power of the data symbol and/or the reference signal symbol to be transmitted through the PUSCH can be maintained within a threshold range. can do it

According to an embodiment, the processor 310 may determine a modulation scheme to be used for data to be transmitted in uplink based on configured or indicated MCS information. When the pi/2-BPSK method is determined as the modulation method, the processor 310 may adjust the transmission power of the data symbol(s) to be transmitted through the uplink in consideration of predetermined requirements.

According to an embodiment, the processor 310 may check the modulation used in uplink transmission to determine whether to increase the transmission power of the data symbol(s). The processor 310 may receive DCI format 0-0 or DCI format 0-1 transmitted through the PDCCH when, for example, an uplink signal is transmitted through uplink scheduling information. The processor 310 may check information on 'modulation and coding scheme (MCS)' in DCI format 0-0 or DCI format 0-1. For example, the base station may set whether the user terminal can use pi/2-BPSK as a modulation scheme for data symbols through the tp-pi2BPSK parameter included in PUSCH-Config of higher signaling (RRC signaling). The base station may set the modulation scheme for the data symbol to the user terminal as pi/2-BPSK by using the MCS information included in the DCI to be provided through the PDCCH. When the user terminal recognizes that the modulation scheme for the data symbol is set to pi/2-BPSK by the MCS information included in the DCI, the user terminal may increase the transmission power of some or all of the data symbols transmitted through the PUSCH.

According to an embodiment, when the processor 310 multiplexes and transmits the data symbol and the reference signal symbol in the uplink, in consideration of the data transmission power and the reference signal transmission power, some symbols of the data symbol and the reference signal symbol are The transmit power can be controlled. The uplink transmission may be, for example, PUSCH transmission. The processor 310 checks the structure of the uplink channel, and selects a target symbol for adjusting (increasing or decreasing) transmit power among symbols to be transmitted within one transmission unit in consideration of the checked structure of the uplink channel. can decide

According to an embodiment, the processor 310 calculates a first peak-to-average power ratio (PAPR) (PAPR _DATA ) according to data symbol transmission power within one transmission unit. A second peak-to-average power ratio (PAPR) (PAPR _RS ) may be obtained according to the reference signal symbol transmission power.

According to an embodiment, when the difference between the first and second PAPRs (PAPR _RS - PAPR _DATA ) exceeds a threshold value, the processor 310 is configured with one or a plurality of data symbols to be transmitted within one transmission unit. Alternatively, the transmit power of some of the plurality of reference signal symbols may be adjusted (increased or decreased). The processor 310, for example, if the second PAPR (PAPR _RS ) is larger than the first PAPR (PAPR _DATA ) by a threshold value or more, some or all of the data symbols among the data symbols to be transmitted within one transmission unit Transmission power can be increased. As another example, if the second PAPR (PAPR _RS ) is greater than the first PAPR (PAPR _DATA ) by a threshold value or more, the processor 310 reduces the total transmission power for one transmission unit, and the one transmission unit It is possible to increase the transmission power of some symbols (eg, data symbols) to be transmitted within the .

According to an embodiment, the processor 310 may obtain first peak power according to data transmission power and second peak power according to reference signal transmission power within one transmission unit. can When the difference between the first and second peak powers exceeds a threshold value, the processor 310 determines whether one or more data symbols to be transmitted within one transmission unit and some symbols among one or more reference signal symbols are transmitted. It is possible to adjust (increase or decrease) the transmit power. For example, if the second peak power is greater than the first peak power by a threshold value or more, the processor 310 may increase the transmission power of some or all of the data symbols to be transmitted within one transmission unit. have. As another example, if the second peak power is greater than the first peak power by a threshold value or more, the processor 310 reduces the total transmission power for one transmission unit, and some symbols to be transmitted within the one transmission unit. It is possible to increase the transmission power of data symbols (eg, data symbols).

According to an embodiment, the processor 310, when a modulation scheme having a small PAPR characteristic is used to transmit symbols in the uplink, the structure of data symbols and reference signal symbols arranged for transmission in the uplink can be checked. For example, a modulation scheme having a small PAPR may be, for example, a Pi/2-BPSK modulation scheme. For example, the processor 310 may boost the transmission power of one or a plurality of data symbols to be transmitted within one transmission unit in consideration of the uplink structure. As another example, the processor 310 reduces the total transmission power of symbols to be transmitted within one transmission unit in consideration of the uplink structure, and then reduces some symbols (eg, data symbols) among the symbols to be transmitted. transmit power can be increased. The uplink structure may be, for example, a PUSCH structure.

According to an embodiment, when a power control event for the uplink occurs, the processor 310 adjusts only the transmit power of a symbol to which a specific type of data is mapped among heterogeneous data to be multiplexed and transmitted in the uplink ( increase or decrease). The heterogeneous data may include, for example, enhanced mobile broadband (eMBB) data and ultra-reliable & low latency communications (URLLC) data. The processor 310 increases the power of a symbol to which URLLC data is mapped by a specific offset compared to the power of a symbol to which eMBB data is mapped when, for example, an uplink power control event occurs. can The power control event for the uplink is, for example, the second PAPR (PAPR obtained by the reference signal symbol) (PAPR _RS ) is more critical than the first PAPR (PAPR obtained by the data symbol) (PAPR _{DATA )} It may occur when the value is greater than or equal to the threshold value or when the second peak power (peak power of the reference signal symbol) is greater than the first peak power (peak power of the data symbol) by more than a threshold value. The power control event for the uplink may be, for example, a case in which a modulation scheme having a small PAPR in the uplink, for example, a Pi/2-BPSK modulation scheme is used. In addition, the power control event for the uplink may be issued by a combination of several conditions (eg, modulation scheme, PAPR or peak power) disclosed. For example, the electronic device compares the first PAPR and the second PAPR only when the Pi/2-BPSK modulation scheme is used in the uplink, and considers the result for some symbols among symbols to be transmitted in the uplink. It is possible to adjust (increase or decrease) the transmit power.

According to an embodiment, the processor 310 may include two or more types of data in one uplink transmission. The processor 310 may, for example, multiplex eMBB data and URLLC data and transmit the multiplexed data through the communication module 320 . The processor 310 may increase the transmission power of symbol(s) to which data of a specific type is mapped among symbols constituting one uplink transmission. For example, when URLLC data is generated and needs to be transmitted while transmitting eMBB data through PUSCH, the processor 310 determines symbol(s) to which URLLC data is to be transmitted, and symbol(s) to which URLLC data is to be transmitted. transmit power can be increased. For example, the processor 310 may increase the transmission power of the URLLC data transmission symbol by a specific offset compared to the transmission power of the eMBB data transmission symbol.

According to an embodiment, the processor 310 may control the transmission power of a symbol to be transmitted through the PUSCH in consideration of the type of symbol transmitted through the PUSCH. The processor 10 may, for example, perform uplink power control in consideration of whether or not uplink control information is transmitted in PUSCH. For example, the processor 10 may determine the case of transmitting uplink control information through the PUSCH based on the following criteria.

In the first case, the upper signal or RRC signal is set to transmit CSI or SR information through PUCCH in several specific symbols of one cell, or a physical signal is instructed to transmit HARQ-ACK or CSI in the specific multiple symbols can be assumed. In this case, when a physical signal indicates to transmit uplink data through the PUSCH in a symbol having the same time index as several specific symbols, the processor 310 multiplexes the uplink control signal to be transmitted in the PUCCH with the data symbol. Therefore, it can be transmitted through PUSCH. In this case, when the PUSCH and one or more symbols transmitted through the PUCCH are the same, the processor 310 may multiplex the uplink control signal to the data symbol and transmit the UL control signal in the PUSCH.

In the second case, the physical signal indicates to transmit data symbols in specific multiple symbols through the PUSCH, and the bit field of the aperiodic channel report indicator (CSI request) included in the physical signal indicates to report the aperiodic channel. In this case, the processor 310 may multiplex the uplink control signal including the aperiodic channel information with the data symbol and transmit it through the PUSCH.

In the third case, when the physical signal indicates to transmit only the uplink control signal through the PUSCH without data symbols in several specific symbols, the processor 310 transmits the uplink control signal including the aperiodic channel information through the PUSCH. can

In all three cases described above, the type of CSI transmission information required for CSI transmission or aperiodic channel transmission, for example, CRI (CSI-RS resource indicator) or RI (rank indicator) or LI ( layer indicator) is included, whether the channel information to be reported is subband CQI or wideband CQI or subband PMI or wideband PMI, and whether the type of channel information to be reported is type I or type II signal or Uplink information for the user terminal may be configured using the RRC signal.

In addition, in all three cases described above, the uplink control signal may use different channel coding according to the bit size. For example, when the uplink control signal is less than or equal to 11 bits, the processor 310 may encode the uplink control signal using reed-muller coding (RM). When the uplink control signal is greater than 11 bits, the processor 310 may encode the uplink control signal using polar coding.

When the uplink control signal is transmitted through the PUSCH together with the data symbol as in the first and second described above, the processor 310 may not adjust the transmission power when transmitting the PUSCH. However, as in the third case, when only the uplink control signal is transmitted through the PUSCH without a data symbol, the processor 310 may change the transmission power when transmitting the PUSCH.

According to an embodiment, the following <Equation 1> may be an example of determining the transmission power of the PUSCH.

The parameters used in <Equation 1> may be defined as follows.

: 사용자 단말(예: 도 2의 사용자 단말(220))에게 허용된 최대 전송 전력으로, 사용자 단말의 파워 클래스 및 상위 시그널링의 설정에 의해 정해진다. (One)

: The maximum transmission power allowed for the user terminal (eg, the user terminal 220 of FIG. 2 ), and is determined by the power class and upper signaling settings of the user terminal.

: 기지국(예: 도 2의 기지국(210))이 측정하여 사용자 단말에게 시그널링한 간섭(interference) 양, 인덱스 j는 스케줄링 되는 데이터의 종류에 따라, 랜덤 액세스 과정에서 사용자 단말의 상향링크 데이터 전송의 경우 j=0, grant-free 데이터 혹은 스케줄링 정보가 일정 시간구간동안 변함없이 유지되는 반영속적(semi-persistent) 스케줄링 데이터의 경우 j=1, 동적 스케줄링 (dynamic scheduling) 되는 데이터의 경우 j=2로 구분된다.(2)

: The amount of interference measured by the base station (eg, the base station 210 in FIG. 2 ) and signaled to the user terminal, index j, according to the type of scheduled data, the uplink data transmission of the user terminal in the random access process In the case of j = 0, in the case of semi-persistent scheduling data in which grant-free data or scheduling information is maintained unchanged for a certain period of time, j = 1, in the case of dynamic scheduling data, j = 2 are separated

(3) μ: sub-carrier spacing configuration value

: 슬롯 i에 대해 기지국이 스케줄링한 주파수 자원의 양인 PRB (physical resource block) 개수(4)

: The number of physical resource blocks (PRBs) that are the amount of frequency resources scheduled by the base station for slot i

: 기지국과 사용자 단말사이의 경로 손실(pathloss)을 부분적으로 보상해 주기 위한 값,

(5)

: A value for partially compensating for pathloss between the base station and the user terminal,

: 기지국과 사용자 단말사이의 경로 손실로서, 사용자 단말이 기지국에 의해 시그널링된 기준신호(RS; reference signal) 자원

의 전송전력과 상기 기준신호의 사용자 단말의 수신 신호 레벨과의 차이로부터 경로 손실을 계산한다. 인덱스

는 기준신호 중 SS 블록 혹은 CSI-RS 혹은 두 자원 모두를 사용하여 계산할지 구분한다. (6)

: As a path loss between the base station and the user terminal, the user terminal is a reference signal (RS; reference signal) resource signaled by the base station

A path loss is calculated from the difference between the transmit power of the reference signal and the received signal level of the user terminal of the reference signal. index

I distinguish whether to calculate using the SS block, CSI-RS, or both resources among the reference signals.

: 슬롯 i에 대해 기지국이 스케줄링한 데이터의 포맷 (transport format; TF) 혹은 MCS (modulation and coding scheme)에 따른 전력 오프셋(7)

: Power offset according to the format (transport format; TF) or MCS (modulation and coding scheme) of data scheduled by the base station for slot i

: 슬롯 i에 대해 기지국 스케줄링 정보에 포함되어 있는 전력제어명령에 따라 계산하는 l 번째 전력제어 상태함수이다. 전력제어 상태함수의 개수는 상위 시그널링을 통해 알려준다. (8)

: This is the l- th power control state function calculated according to the power control command included in the base station scheduling information for slot i. The number of power control state functions is notified through higher level signaling.

값이 변경될 수 있다. 보다 구체적으로,

값은 상위 시그널링인 델타(delta) MCS에 의해 제공되는 K_s=0인 경우

으로 결정할 수 있고, K_s=1.25인 경우

으로 결정될 수 있다. 이때, 각 파라미터는 하기와 같이 정의될 수 있다.If only the uplink control signal is transmitted through the PUSCH without a data symbol as in the third case, the parameter included in Equation 1

The value can be changed. More specifically,

_{If the value is K s} = 0 provided by the upper signaling delta MCS

It can be determined as , and if K _s =1.25

can be determined as In this case, each parameter may be defined as follows.

식을 통해 계산하고, 상향링크 스케줄링된 데이터를 포함하지 않는 PUSCH인 경우

식을 통해 계산된다.(1) BPRE (bit per resource element): A parameter indicating the number of bits per RE. In case of PUSCH including uplink scheduled data

In case of PUSCH calculated through the formula and does not include uplink scheduled data

It is calculated through the formula

Here, C is the number of code blocks, K _r is the size of the code block, O _CSI is the number of CSI part 1 bits including CRC bits, and N _RE indicates the number of REs used for PUSCH transmission excluding DMRS.

: 수신 신뢰도를 조절하기 위한 상수 값을 나타낸다. 상향링크 스케줄링된 데이터를 포함하는 PUSCH인 경우에

, 상향링크 스케줄링된 데이터를 포함하지 않는 PUSCH인 경우에 상위 시그널링 및/또는 DCI에 포함된 beta_offset indicator field 값에 의해 결정된다. (2)

: Indicates a constant value for adjusting the reception reliability. In case of PUSCH including uplink scheduled data

, is determined by the beta_offset indicator field value included in higher signaling and/or DCI in the case of a PUSCH that does not include uplink scheduled data.

According to an embodiment, the processor 310 may determine whether the PUSCH scheduled through the PDCCH and the PUCCH are transmitted in the same symbol, and may determine the PUSCH transmission including the uplink control signal. When it is necessary to transmit a PUSCH including an uplink control signal, the processor 310 determines the position of the PUSCH on radio resources, the position of the data symbol(s) in the PUSCH, and the position of the DMRS symbol(s) in the PUSCH through RRC signaling and PUSCH It can be determined through DCI including scheduling. The processor 310 may increase the transmission power of the determined data symbol(s).

4 is a diagram 400 illustrating a structure for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure. The electronic device 101 may be a user terminal (eg, the user terminal 220 of FIG. 2 ) capable of transmitting a data symbol, a control symbol, and/or a reference signal symbol through an uplink channel.

Referring to FIG. 4 , the electronic device 101 according to an embodiment may include at least a data signal processing module 410 , a reference signal processing module 420 , or a multiplexer 430 .

According to an embodiment, the data signal processing module 410 may generate a data symbol to be transmitted through an uplink channel (eg, PUSCH) and output the generated data symbol in consideration of the PUSCH structure.

According to an embodiment, the reference signal processing module 420 may generate a reference signal symbol to be transmitted through an uplink channel (eg, PUSCH), and output the generated reference signal symbol in consideration of the PUSCH structure.

According to an embodiment, the multiplexer 430 multiplexes the data symbols output by the data signal processing module 410 and/or the reference signal symbols output by the reference signal processing module 420 based on the PUSCH structure to obtain the PUSCH It can be output as a signal for transmission through The multiplexer 430 may perform multiplexing of data symbols and reference signal symbols in consideration of a PUSCH structure according to, for example, a PUSCH mapping type.

According to an embodiment, when PUSCH transmission using Pi/2-BPSK as a modulation method occurs, the data signal processing module 410 may amplify data symbols and transmit them to the multiplexer 430 . According to another embodiment, when PUSCH transmission using Pi/2-BPSK as a modulation scheme occurs, the multiplexer 430 may amplify only data symbols and transmit the amplified data symbols to the network.

FIG. 5 is a diagram illustrating a control flow 500 for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure. The electronic device 101 may be a user terminal (eg, the user terminal 220 of FIG. 2 ) capable of transmitting a data symbol and/or a reference signal symbol through an uplink channel.

Referring to FIG. 5 , in operation 510 according to an embodiment, the electronic device 101 may determine whether PUSCH transmission exists in a specific slot(s). The electronic device 101 determines, for example, whether PUSCH transmission exists by the presence of DCI format 0-0 or DCI format 0-1, or by specific parameters in RRC signaling, or It can be determined by specific parameters in RRC signaling and whether a specific bit field of DCI transmitted through the PDCCH is set to a specific value.

If the PUSCH transmission is present, in operation 520 according to an embodiment, the electronic device 101 may perform an operation of checking a PUSCH structure for boosting transmission power of a data symbol. The operation of confirming the PUSCH structure is, for example, made through a specific parameter in RRC signaling, or through RRC signaling and a specific bit field in DCI format 0-0 or DCI format 0-1 transmitted through PDCCH Through confirmation can be done

According to an embodiment, operations 510 and 520 may be performed based on a prior uplink transmission configuration or may be performed in real time through uplink scheduling.

In operation 530 according to an embodiment, in consideration of the PUSCH structure, the electronic device 101 responds to _{the difference between PAPR DATA (or peak power) of data symbol(s) and PAPR RS} (or peak power) of reference signal symbol(s). Based on the above, it may be determined whether adjustment of the data transmission power is necessary. The electronic device 101, for example, determines whether a difference (PAPR _RS - PAPR _{DATA ) between PAPR RS of the reference signal symbol(s) and PAPR DATA} of the data symbol(s) is greater than a threshold value TH. can The electronic apparatus 101 includes a difference in PAPR _DATA of PAPR _RS and the data symbol (s) of a reference signal symbol (s) (PAPR _RS - PAPR _DATA), the threshold adjustment to the data transmission power to a greater than (TH) may be deemed necessary.

If the difference (PAPR _RS - PAPR _{DATA ) between PAPR RS} of the reference signal symbol(s) _{and PAPR DATA} of the data symbol(s) is not greater than the threshold value TH, in operation 550 according to an embodiment, the electronic device 101 ) may transmit a data symbol, a control signal symbol, and/or a reference signal symbol through the PUSCH by applying the transmission power according to Equation 1 defined above.

If the difference (PAPR _RS - PAPR _{DATA ) between PAPR RS} of the reference signal symbol(s) _{and PAPR DATA} of the data symbol(s) is greater than the threshold value TH, in operation 540 according to an embodiment, the electronic device 101 can be transmitted to the network (gNB) after adjusting (eg, increasing) transmission power for data symbols in the PUSCH. As another example, the electronic device 101 may reduce the transmission power of the entire transmission unit, and may transmit by increasing the transmission power of some symbols, for example, data symbols. As a result, as a result, the transmission power of the data symbol can be boosted relative to the transmission power of the reference signal symbol.

6 is a diagram illustrating a control flow 600 for uplink transmission in the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure. The electronic device 101 may be a user terminal (eg, the user terminal 220 of FIG. 2 ) capable of transmitting a data symbol, a control symbol, and/or a reference signal symbol through an uplink channel.

Referring to FIG. 6 , in operation 610 according to an embodiment, the electronic device 101 may determine whether PUSCH transmission exists in a specific slot(s). The electronic device 101 determines, for example, whether PUSCH transmission exists by the presence of DCI format 0-0 or DCI format 0-1, or by specific parameters in RRC signaling, or It can be determined by specific parameters in RRC signaling and whether a specific bit field of DCI transmitted through the PDCCH is set to a specific value.

If the PUSCH transmission exists, in operation 620 according to an embodiment, the electronic device 101 may determine whether a modulation scheme to be applied to a data symbol to be transmitted through the PUSCH is a specific modulation scheme. When a data symbol and a reference signal symbol are multiplexed and transmitted in one uplink transmission, the specific modulation scheme is pi/2-BPSK, which is a modulation scheme that allows the data symbol to have relatively low PAPR or peak power compared to the reference signal symbol. can be

If the modulation scheme to be applied to the data symbol is not pi/2-BPSK, in operation 630 according to an embodiment, the electronic device 101 applies the transmission power according to Equation 1 defined above to the data symbol through PUSCH. and/or may transmit a reference signal symbol.

If the modulation scheme is pi/2-BPSK, in operation 640 according to an embodiment, the electronic device 101 may perform an operation of checking a PUSCH structure for boosting the transmission power of a data symbol. The operation of confirming the PUSCH structure is, for example, made through a specific parameter in RRC signaling, or through RRC signaling and a specific bit field in DCI format 0-0 or DCI format 0-1 transmitted through PDCCH Through confirmation can be done

According to an embodiment, operations 610 to 640 may be performed based on a prior uplink transmission configuration or may be performed in real time through uplink scheduling.

Upon checking the PUSCH structure, in operation 650 according to an embodiment, the electronic device 101 may boost transmission power for a data symbol in the PUSCH and transmit it to the network gNB. As another example, the electronic device 101 may reduce the transmission power of the entire transmission unit, and may transmit by increasing the transmission power of some symbols, for example, data symbols. As a result, as a result, the transmission power of the data symbol can be boosted relative to the transmission power of the reference signal symbol.

According to an embodiment, when the modulation scheme to be used for transmitting the data symbol is determined to be pi/2-BPSK based on the set or indicated MCS information, the electronic device 101 increases the transmission power of the data symbol(s). can do it The electronic device 101 may increase the data transmission power based on _{, for example, a difference between PAPR DATA} of data symbol(s) _{and PAPR RS} of reference signal symbol(s). _{The electronic device 101 may obtain a difference value between PAPR DATA} of the data symbol(s) _{and PAPR RS} of the reference signal symbol(s), and may increase the data transmission power when the difference value is greater than a predetermined value.

More specifically, when the electronic device 101 wants to transmit the data symbol and the reference signal symbol with the maximum transmission power, the electronic device 101 sends the data symbol(s) to the power amplifier based on the greater of the PAPR values of the data symbol(s) and the reference signal symbol(s). The peak power of the PUSCH can be reduced by reducing the transmission power of all symbols before entering (back-off) and/or by clipping a signal equal to or greater than a certain reference value by P _Clip. This may reduce a phenomenon in which an output signal is distorted in a power amplifier that is generated according to the PAPR of the data symbol(s) and the reference signal symbol(s).

According to an embodiment, since the PAPR value of the reference signal symbol(s) is greater than the PAPR value of the data symbol(s) modulated by pi/2-BPSK, the electronic device 101 controls the reference signal symbol(s). It is possible to increase the transmission power of the data symbol(s) based on the PAPR value.

According to an embodiment, when clipping is not performed or clipping is performed after increasing the transmission power of the data symbol(s), the electronic device 101 compares the transmission power of the data symbol(s) with the data symbol and the reference signal symbol. It can be increased based on the difference in PAPR values (PAPR _RS - PAPR _{DATA ).} Even in this case, the distortion of the output signal from the power amplifier can be reduced equally for the data and the reference signal.

According to an embodiment, when clipping is performed, the electronic device 101 calculates the transmission power of the data symbol(s) by subtracting the power reduced by clipping from the difference between the PAPR values of the data symbol and the reference signal symbol (PAPR _RS). - PAPR _DATA - P _Clip ), the distortion of the output signal from the power amplifier can be reduced equally for data and reference signals.

As described above, when the electronic device 101 is set to modulate the data symbol by pi/2-BPSK, the data symbol is based on the PAPR difference between the data symbol and the reference signal symbol and/or the transmission power reduced by clipping. It can be transmitted by increasing the power of (s). At this time, the PAPR value of the data symbol modulated by pi/2-BPSK is the number of PRBs scheduled for PUSCH transmission through PDCCH or higher signaling and the FFT/IFFT size (bandwidth size of active BWP and subcarrier spacing) may be changed according to In the PAPR _RS , a reference signal sequence is determined according to the number of PRBs scheduled for PUSCH transmission through the PDCCH or upper signaling and the number of reference signal CDM groups, and may be changed accordingly. The power P _Clip reduced by clipping may be determined by the implementation of the electronic device 101 .

Various embodiments proposed in the present disclosure are not limited to comparing the PAPR value of the data symbol(s) and the reference signal symbol(s), and instead of comparing the PAPR value, the data symbol(s) transmit power can be increased. In this case, if the average power of the data symbol and the reference signal symbol(s) is the same, the result of comparing the PAPR and the peak power may be the same. Specifically, when the electronic device 101 is set to modulate the data symbol with pi/2-BPSK, based on the difference between pi/2-BPSK and the peak power value of the reference signal and/or the power reduced by clipping It can be transmitted by increasing the transmission power of the data symbol(s).

7 is a diagram illustrating an example of resource allocation for uplink transmission of the electronic device 101 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments of the present disclosure.

Referring to FIG. 7 , according to an embodiment, a user terminal (eg, the user terminal 220 of FIG. 2 ) is connected to an uplink channel (eg, PUSCH) provided by a base station (eg, the base station 210 of FIG. 2 ). A resource (resource 700) to be transmitted by multiplexing a data symbol and/or a reference signal symbol using the resource allocation information for the resource 700, an allocation period 703 of the resource 700, or a repetition number of the resource (repetition) 704 can be set.

The resource 700 may be configured by a time allocation resource 701 and a frequency allocation resource 702 . For example, the user terminal 220 may set a time allocation resource 701 in consideration of the time allocation information included in the resource allocation information provided by the base station 210, and the resource allocation information included in the A frequency allocation resource 702 may be configured in consideration of the frequency allocation information. The user terminal 220 may allocate the resource 700 with repetition 704 or a periodicity 703 on the time axis in consideration of the period information included in the resource allocation information. As an example, in FIG. 7 , the resource 700 is repeated in two slots (slot 0 and 1 or slots 3 and 4) and is allocated in a period of three slots (slot 0 to 2 or slot 3 to 5). is showing

8(a) to 8(d) are diagrams illustrating examples of PUSCH structures to which various embodiments of the present disclosure are applied.

8(a) shows an example of a PUSCH structure to which a single symbol DM-RS is applied in mapping type A, and FIG. 8(b) is a PUSCH structure to which a double symbol DM-RS is applied in mapping type A. 8(c) shows an example of a PUSCH structure to which DM-RS of a single symbol is applied in mapping type B, and FIG. 8(d) is a diagram of a double symbol in mapping type B. An example of a PUSCH structure to which DM-RS is applied is shown.

According to various embodiments of the present disclosure, an electronic device (eg, the electronic device 101 of FIG. 1 ) may include: a communication module configured to multiplex a data symbol and a reference signal symbol and transmit it through an uplink channel; and a modulation scheme to be used for data symbol transmission is checked, and when the checked modulation scheme has a relatively small peak-to-average power ratio (PAPR) compared to other modulation schemes, the uplink channel It may include at least one processor configured to adjust the transmission power of some of the data symbols and reference signal symbols to be transmitted in one transmission unit in consideration of the structure.

According to various embodiments, the modulation scheme having a relatively small PAPR compared to the other modulation schemes may be a Pi/2 binary phase shift keying (BPSK) scheme.

According to various embodiments, the at least one processor receives control information from a base station through at least one of higher layer signaling and a downlink control channel, and uses the received control information to identify the structure of the uplink channel can be configured to

According to various embodiments, the at least one processor is configured to transmit resource allocation information for the uplink channel and the uplink channel from control information received through at least one of the higher layer signaling and the downlink control channel. Configure to acquire parameters and determine the position of the uplink channel on the radio resource, the position of data symbols in the uplink channel, and the position of reference signal symbols in the uplink channel using the acquired resource allocation information and parameters can be

According to various embodiments, the at least one processor may be configured to increase the transmission power of some or all of the to-be-transmitted data symbols by using the determined positions of the data symbols.

According to various embodiments, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the at least one processor is configured to perform some or all of the data symbols among the data symbols to be transmitted in one transmission unit. It may be configured to increase the transmit power.

According to various embodiments, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the at least one processor reduces the total transmission power of the one transmission unit, and and may be configured to increase the transmit power of some or all of the data symbols to be transmitted.

According to various embodiments, the at least one processor, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the ultra-high-speed broadband communication data included in the data symbols to be transmitted in one transmission unit It may be configured to increase the transmission power of the high-reliability/ultra-low-latency communication data symbol by a predetermined offset compared to the transmission power of the symbol.

According to various embodiments, the at least one processor, when the peak power of the reference signal symbol is greater than the peak power of the data symbol by a threshold value or more, some or all of the data symbols to be transmitted in the one transmission unit It can be configured to increase the transmit power of the symbols.

According to various embodiments, when the peak power of the reference signal symbol is greater than the peak power of the data symbol by a threshold value or more, the at least one processor reduces the total transmission power of the one transmission unit, and It may be configured to increase the transmission power of some or all of the data symbols to be transmitted as a unit.

According to various embodiments of the present disclosure, a method for controlling uplink power in an electronic device (eg, the electronic device 101 of FIG. 1 ) includes: checking a modulation scheme to be used for data symbol transmission; and when the checked modulation method has a relatively small peak-to-average power ratio (PAPR) compared to other modulation methods, data to be transmitted in one transmission unit in consideration of the structure of the uplink channel It may include the operation of adjusting the transmission power of some symbols among the symbols and the reference signal symbols.

According to various embodiments, the modulation scheme having a relatively small PAPR compared to the other modulation schemes may be a Pi/2 binary phase shift keying (BPSK) scheme.

According to various embodiments of the present disclosure, the method may include: receiving control information from a base station through at least one of higher layer signaling or a downlink control channel; and identifying the structure of the uplink channel using the received control information.

According to various embodiments, the identifying of the structure of the uplink channel includes resource allocation information for the uplink channel and the uplink from control information received through at least one of the higher layer signaling and the downlink control channel. obtaining parameters for transmitting a channel; and determining the location of the uplink channel, the location of data symbols in the uplink channel, and the location of reference signal symbols in the uplink channel on radio resources using the obtained resource allocation information and parameters. have.

According to various embodiments, the operation of adjusting the transmission power may be an operation of increasing the transmission power of some or all of the data symbols to be transmitted using the determined positions of the data symbols.

According to various embodiments, the adjusting of the transmission power may include, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, some or all of the data symbols to be transmitted in one transmission unit. It may be an operation to increase the transmit power of symbols.

According to various embodiments, the operation of adjusting the transmission power may include, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by more than a threshold, reducing the total transmission power of the one transmission unit, and The operation may be an operation of increasing the transmission power of some or all of the data symbols to be transmitted as a unit.

According to various embodiments, the adjusting of the transmission power may include, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the ultra-high-speed broadband included in the data symbols to be transmitted in one transmission unit. It may be an operation of increasing the transmission power of the high-reliability/ultra-low-delay communication data symbol by a predetermined offset compared to the transmission power of the communication data symbol.

According to various embodiments, the adjusting of the transmission power may include, when the peak power of the reference signal symbol is greater than the peak power of the data symbol by a threshold value or more, some of the data symbols to be transmitted in one transmission unit or It may be an operation of increasing the transmit power of all data symbols.

According to various embodiments, the adjusting of the transmission power may include, when the peak power of the reference signal symbol is greater than the peak power of the data symbol by more than a threshold, reducing the total transmission power of the one transmission unit, and It may be an operation of increasing the transmission power of some or all of the data symbols to be transmitted in a transmission unit of .

Electronic devices according to various embodiments disclosed in this document may be devices of various types. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a notebook computer, a PDA, a portable multimedia device, and a portable medical device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more items, unless the relevant context clearly dictates otherwise. As used herein, “A or B”, “at least one of A and B”, “or at least one of B”, “A, B or C”, “at least one of A, B and C” and “B, or Each of the phrases such as "at least one of C" may include any one of, or all possible combinations of, items listed together in the corresponding one of the phrases. Terms such as “first”, “second”, or “first” or “second” may simply be used to distinguish the component from other such components, and refer to the component in another aspect (e.g., importance or order) is not limited. that one (e.g., first) component is "coupled" or "connected" to another (e.g., second) component with or without the terms "functionally" or "communicatively" When referenced, it means that one component can be coupled to another component directly (eg, by wire), wirelessly, or through a third component.

As used herein, the term “module” may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as, for example, logic, logic block, component, or circuit. A module may be an integrally formed part or a minimum unit of a part or a part thereof that performs one or more functions. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

According to various embodiments of the present document, at least one stored in a storage medium (eg, the internal memory 136 or the external memory 138) readable by a machine (eg, the electronic device 101) It may be implemented as software (eg, program 140) including instructions. For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one command among one or more commands stored from the storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not include a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to an embodiment, the method according to various embodiments disclosed in this document may be provided by being included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play Store™) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to integration. According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repetitively, or heuristically, or one or more of the operations are executed in a different order, or , omitted, or one or more other operations may be added.

Claims (20)

In an electronic device,
a communication module configured to multiplex a data symbol and a reference signal symbol and transmit it through an uplink channel; and
If a modulation scheme to be used for data symbol transmission is identified, and the checked modulation scheme has a relatively small peak-to-average power ratio (PAPR) compared to other modulation schemes, the structure of the uplink channel An electronic device comprising: at least one processor configured to adjust transmission power for some of the data symbols and reference signal symbols to be transmitted in one transmission unit in consideration of the .
According to claim 1,
The modulation scheme having a relatively small PAPR compared to the other modulation schemes is a Pi/2 binary phase shift keying (BPSK) scheme.
3. The method of claim 2,
The at least one processor is configured to receive control information from a base station through at least one of higher layer signaling or a downlink control channel, and to identify a structure of the uplink channel using the received control information.
4. The method of claim 3,
The at least one processor obtains resource allocation information for the uplink channel and parameters for transmitting the uplink channel from control information received through at least one of the higher layer signaling and the downlink control channel, The electronic device is configured to determine a location of the uplink channel, a location of data symbols in the uplink channel, and a location of reference signal symbols in the uplink channel on a radio resource by using the obtained resource allocation information and parameters.
5. The method of claim 4,
and the at least one processor is configured to use the determined location of the data symbols to increase a transmit power of some or all of the to-be-transmitted data symbols.
5. The method of claim 4,
When the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the at least one processor increases the transmission power of some or all of the data symbols to be transmitted in the one transmission unit configured, electronics.
5. The method of claim 4,
The at least one processor, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, reduces the total transmission power of the one transmission unit, and among the data symbols to be transmitted in the one transmission unit An electronic device configured to increase transmit power of some or all data symbols.
5. The method of claim 4,
The at least one processor, when the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by more than a threshold, compared to the transmission power of the ultra-high-speed broadband communication data symbol included in the data symbols to be transmitted in the one transmission unit An electronic device configured to increase a transmit power of a high-reliability/ultra-low-latency communication data symbol by a predetermined offset.
5. The method of claim 4,
When the peak power of the reference signal symbol is greater than the peak power of the data symbol by a threshold value or more, the at least one processor increases the transmission power of some or all data symbols among the data symbols to be transmitted in one transmission unit An electronic device configured to do so.
5. The method of claim 4,
When the peak power of the reference signal symbol is greater than the peak power of the data symbol by a threshold value or more, the at least one processor reduces the total transmission power of the one transmission unit, and the data symbol to be transmitted in the one transmission unit An electronic device configured to increase the transmit power of some or all of the data symbols.
A method for controlling uplink power in an electronic device, the method comprising:
checking a modulation method to be used for data symbol transmission; and
When the confirmed modulation method has a relatively small peak-to-average power ratio (PAPR) compared to other modulation methods, data symbols to be transmitted in one transmission unit in consideration of the structure of the uplink channel and adjusting transmit power for some of the symbols and the reference signal symbols.
12. The method of claim 11,
The modulation scheme having a relatively small PAPR compared to the other modulation schemes is a Pi/2 binary phase shift keying (BPSK) scheme.
13. The method of claim 12,
receiving control information from a base station through at least one of higher layer signaling or a downlink control channel; and
The method further comprising the operation of identifying the structure of the uplink channel using the received control information.
The method of claim 13, wherein the identifying the structure of the uplink channel comprises:
obtaining resource allocation information for the uplink channel and parameters for transmitting the uplink channel from control information received through at least one of the higher layer signaling and the downlink control channel; and
and determining the position of the uplink channel, the position of data symbols in the uplink channel, and the position of reference signal symbols in the uplink channel on radio resources using the obtained resource allocation information and parameters. .
The method of claim 14, wherein the adjusting of the transmit power comprises:
and increasing the transmit power of some or all of the to-be-transmitted data symbols using the determined location of the data symbols.
The method of claim 14, wherein the adjusting of the transmit power comprises:
When the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by more than a threshold, increasing the transmission power of some or all of the data symbols among the data symbols to be transmitted in one transmission unit.
The method of claim 14, wherein the adjusting of the transmit power comprises:
When the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by a threshold value or more, the entire transmission power of the one transmission unit is reduced, and transmission of some or all data symbols among the data symbols to be transmitted in the one transmission unit A method of increasing power.
The method of claim 14, wherein the adjusting of the transmit power comprises:
When the PAPR of the reference signal symbol is greater than the PAPR of the data symbol by more than a threshold, high reliability/ultra-low delay communication data symbol compared to the transmission power of the ultra-high-speed broadband communication data symbol included in the data symbols to be transmitted in one transmission unit and increasing the transmit power of ? by a predetermined offset.
The method of claim 14, wherein the adjusting of the transmit power comprises:
When the peak power of the reference signal symbol is greater than the peak power of the data symbol by more than a threshold, increasing the transmission power of some or all data symbols among the data symbols to be transmitted in one transmission unit.
The method of claim 14, wherein the adjusting of the transmit power comprises:
When the peak power of the reference signal symbol is greater than the peak power of the data symbol by more than a threshold, the entire transmission power of the one transmission unit is reduced, and some or all data symbols among the data symbols to be transmitted in the one transmission unit the act of increasing their transmit power.

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