WO2024035142A1 - 반송파 신호를 이용하여 데이터를 전송하는 전송 장치 및 전송 방법 - Google Patents
반송파 신호를 이용하여 데이터를 전송하는 전송 장치 및 전송 방법 Download PDFInfo
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- WO2024035142A1 WO2024035142A1 PCT/KR2023/011810 KR2023011810W WO2024035142A1 WO 2024035142 A1 WO2024035142 A1 WO 2024035142A1 KR 2023011810 W KR2023011810 W KR 2023011810W WO 2024035142 A1 WO2024035142 A1 WO 2024035142A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
Definitions
- the present invention relates to a transmission device and a transmission method for transmitting data using a carrier signal. More specifically, the present invention relates to a transmission device and a transmission method for transmitting data using a carrier signal that modulates data and transmits it as a carrier signal. It's about.
- Wireless communication systems are being widely deployed in various fields to wirelessly transmit and receive various data such as voice, images, and video.
- This wireless communication system is a multiple access system that can support communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
- wireless communication systems include a CDMA (Code Division Multiple access) system, FDMA (Frequency Division Multiple access) system, TDMA (Time Division Multiple access) system, OFDMA (Orthogonal Frequency Division Multiple access) system, and SC-FDMA (Single Carrier Frequency Division Multiple access) systems are mainly used.
- CDMA Code Division Multiple access
- FDMA Frequency Division Multiple access
- TDMA Time Division Multiple access
- OFDMA Orthogonal Frequency Division Multiple access
- SC-FDMA Single Carrier Frequency Division Multiple access
- the wireless communication system uses one bandwidth for data transmission.
- the 2nd generation wireless communication system uses a bandwidth of 200KHz to 1.25MHz
- the 3rd generation wireless communication system uses a bandwidth of 5MHz to 10MHz.
- a multi-carrier system that defines a main carrier with one bandwidth and center frequency and transmits and receives data in a broadband manner through multiple carriers.
- the multi-carrier system has the problem that when the number of carriers increases, interference between carriers frequently occurs and it is vulnerable to external noise signals in the process of transmitting and receiving information on the carriers.
- data is transmitted and transmitted in a multi-carrier system that performs wireless communication.
- Patent Document 1 (Republic of Korea) Publication of Patent No. 10-2002-0068374
- the present invention was developed to solve the above problems, and the purpose of the present invention is to provide a transmission device and method for transmitting data using a carrier signal that maps data to a carrier wave and modulates it into a transmission signal.
- a transmission device for transmitting data using a carrier wave signal is a transmission device for transmitting data using a plurality of carrier waves, and includes a receiving unit for receiving a plurality of data from an antenna; a mapping unit that selects one or more data among the plurality of data, checks the value and order of the data, and maps the order information of the data to a carrier wave existing in the same order as the value; and a modulator that modulates the carrier wave into a transmission signal.
- the mapping unit may map order information of one of the data with the same value to a carrier existing in the first order.
- the modulator may perform an inverse fast Fourier transform (IFFT) on the carrier wave and modulate it into a transmission signal.
- IFFT inverse fast Fourier transform
- the transmission method of the present invention for achieving the above object is a transmission method performed in a transmission device that transmits using a plurality of carrier waves.
- mapping step if data with the same value exists among the plurality of data, the order information of one of the data with the same value may be mapped to the carrier existing in the first order. .
- the carrier wave in the modulation step, can be modulated into a transmission signal by performing an Inverse Fast Fourier Transform (IFFT).
- IFFT Inverse Fast Fourier Transform
- data transmission efficiency can be improved by providing a transmission device and method for transmitting data using a carrier signal.
- Figure 1 is an example diagram of a multi-carrier system including a transmission device that transmits data using a carrier signal according to an embodiment of the present invention.
- Figure 2 is a block diagram of a transmission device that transmits data using a carrier signal according to an embodiment of the present invention.
- FIG. 3 is a detailed block diagram of the transmission device of FIG. 2.
- FIG. 4 is an example diagram of a first constellation used by the transmission device of FIG. 2.
- FIG. 5 is an example diagram of a second constellation used by the transmission device of FIG. 2.
- FIG. 6 is an example diagram of a plurality of carrier waves transmitted by the modulator of FIG. 2.
- Figure 7 is a flow diagram of a transmission method according to an embodiment of the present invention.
- Figure 1 is an example diagram of a multi-carrier system including a transmission device that transmits data using a carrier signal according to an embodiment of the present invention.
- a multi-carrier system (S) including a transmission device 10 that transmits data using a carrier signal includes Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SC-FDMA). Access), QAM (Quadrature Amplitude Modulation), etc.
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Carrier Frequency Division Multiple Access
- Access QAM (Quadrature Amplitude Modulation), etc.
- OFDMA is a technology implemented by wireless technologies such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, and Evolved UTRA (E-UTRA).
- Wi-Fi IEEE 802.11
- WiMAX IEEE 802.16
- WiMAX IEEE 802.16
- IEEE 802-20 IEEE 802-20
- E-UTRA Evolved UTRA
- UTRA is part of UMTS (Universal Mobile Telecommunications System).
- 3GPP (3rd Generation Partnership Project) LTE long term evolution
- E-UMTS Evolved UMTS
- SC-FDMA SC-FDMA
- the OFDM transmission method in which the multi-carrier system (S) modulates using the QAM modulation technique is described in detail, but is not limited thereto.
- a multi-carrier system includes a transmission device (hereinafter referred to as a transmission device) 10, a terminal (R), and a base station (B) that transmit data using a carrier signal.
- a transmission device hereinafter referred to as a transmission device
- R terminal
- B base station
- a base station (B) may be provided to provide communication services for a specific geographic area (generally referred to as a cell).
- the cell may be divided into multiple areas.
- This base station (B) is generally set as a fixed station that communicates with the transmission device 10 and the terminal (R), or is an evolved-NodeB (eNB), Base Transceiver System (BTS), or access point ( It may be a communication facility referred to as an Access Point, etc.
- eNB evolved-NodeB
- BTS Base Transceiver System
- Access Point It may be a communication facility referred to as an Access Point, etc.
- the terminal (R) may be prepared to receive data or transmission signals from the base station (B).
- the terminal R is a device that substantially receives data and transmission signals from the transmission device 10, and may be fixed or mobile.
- R include mobile stations (MS), user terminals (UTs), subscriber stations (SS), wireless devices, personal digital assistants (PDAs), wireless modems, and handheld devices. device), etc.
- Figure 2 is a block diagram of a transmission device that transmits data using a carrier signal according to an embodiment of the present invention
- Figure 3 is a detailed block diagram of the transmission device of Figure 2
- Figure 4 is a transmission device used by the transmission device of Figure 2.
- Figure 5 is an example diagram of a first constellation used by the transmission device of Figure 2
- Figure 6 is an example diagram of a plurality of carrier waves transmitted by the modulation unit of Figure 2.
- the transmission device 10 is provided to modulate a plurality of data received through communication with the base station B into a transmission signal.
- This transmission device 10 may be mobile or fixed.
- the transmission device 10 may be in the form of a server or engine, and may be an apparatus, terminal, user equipment (UE), mobile station (MS), wireless device, or handheld device. It may be called by other terms such as device).
- the transmission device 10 can execute or produce various software based on an operating system (OS), that is, a system.
- OS operating system
- the operating system is a system program that allows software to use the hardware of the device, and includes mobile computer operating systems such as Android OS, iOS, Windows Mobile OS, Bada OS, Symbian OS, Blackberry OS, Windows series, Linux series, Unix series, etc. It can include all computer operating systems such as MAC, AIX, and HP-UX.
- the transmission device 10 may be provided including a reception unit 110, a mapping unit 130, and a modulation unit 150 to perform a transmission method of modulating and transmitting data.
- the transmission device 10 may be installed and executed with software (application) for performing the transmission method, and the reception unit 110, mapping unit 130, and modulation unit 150 may be installed in the transmission device 10. ) can be controlled by software to perform the transmission method performed.
- the transmission device 10 may further include a storage unit for storing data received from the outside and preset constellations, and a communication unit for network communication with the base station (B) and the terminal (R).
- these storage units and communication units can also be controlled by software to perform the transmission method performed by the transmission device.
- the transmission device 10 may be a separate terminal or a module.
- the receiving unit 110, mapping unit 130, and modulation unit 150 may be formed as an integrated module or may be comprised of one or more modules. However, on the contrary, each configuration may be comprised of a separate module.
- the transmission device 10 is equipped with an antenna (A) and can receive data from the outside through a communication unit or transmit a transmission signal to a base station.
- the receiver 110 receives a plurality of data from the base station (B).
- the receiver 110 receives at least one external data from the base station (B) through the antenna (A) formed in the transmission device 10, or binary data (voice, video, etc.) generated from the terminal (R). etc.) can be received.
- the receiving unit 110 may transmit a plurality of data received through the antenna A to the mapping unit 130.
- the mapping unit 130 selects one or more data from among the plurality of data and checks the value and order of the data.
- mapping unit 130 can check the data value according to the number of carriers in OFDM with 2 n sub-carriers.
- the mapping unit 130 may check the data value as a 6-bit value.
- the mapping unit 130 may select one or more initially input data and check the order.
- the mapping unit 130 selects initial data, that is, the first data, among a plurality of data as data for mapping. Mapping can be performed.
- mapping unit 130 maps the data order information to a carrier wave that exists in the same order as the confirmed value.
- the mapping unit 130 may map data order information to a carrier wave that exists in the same order as the value of the data selected from among the plurality of data.
- the mapping unit 130 may set the order of the data to the sequence number existing in the preset first constellation and generate data order information.
- the mapping unit 130 selects the first to third data among a plurality of data and sets them as Sequence 1 to 3. And, if the 6-bit value of the first selected data is 27, the 6-bit value of the second data is 63, and the 6-bit value of the third data is 33, the Sequence is selected on the carrier that exists in the 27th order among the 63 carriers. You can map the Sequence 1 constellation, map the Sequence 2 constellation to the carrier that exists in the 63rd order, and map the Sequence 3 constellation to the carrier that exists in the 33rd order.
- the mapping unit 130 can select some data among the plurality of data received from the base station (B), check the value and order of the data, and map the data order information to the same carrier as the value of the data. there is.
- the mapping unit 130 may map the order information of one of the data with the same value to the carrier existing in the first order.
- the mapping unit 130 may select one of the data having the same value and map it to the first carrier.
- the mapping unit 130 selects the first to fifth data among a plurality of data and sets them as Sequences 1 to 5. And, if the 6-bit value of the third data and the 6-bit value of the fourth data are the same as 33, the Sequence 3 constellation is mapped to the carrier that exists in the 33rd order among the 63 carriers, and carrier mapping is stopped from Sequence 4. , Overlapping data can be classified by mapping QAM constellations in the same way as the existing OFDM modulation method, starting from the first carrier that was not selected as a sequence.
- the mapping unit 130 may further include a conversion unit 131 and an alignment unit 133.
- the conversion unit 131 may be provided to convert data not selected by the mapping unit 130 among a plurality of data into a binary data value.
- the conversion unit 131 may convert each piece of data not selected by the mapping unit 130 into a binary data value.
- the converter 131 may generate transpose image data by performing transpose conversion on pixel information included in the video or image.
- the image data may be data in which the values of each pixel constituting the image are implemented in a matrix form.
- the transposed image data may be data obtained by converting rows of image data implemented in the form of a matrix into columns and converting the columns into rows.
- the conversion unit 131 may load the transposed image data in a direction corresponding to the row of the transposed image data.
- the conversion unit 131 can load pixel information arranged in the same row from transposed image data implemented in matrix form at once.
- the direction corresponding to the transposed image may refer to the direction of sequentially loading data arranged in the same row among the data constituting the transposed image data.
- the transform unit 131 performs Fourier transform on the data arranged in the same row of the transposed image data using the SIMD (single instruction multiple data) method, and performs Fourier transform on the data arranged in the same row of the transposed image data, and Data bits can be generated.
- SIMD single instruction multiple data
- the SIMD method is a method of processing multiple data simultaneously with one command, and the converter 130 groups data arranged in each row among the data included in the transposed image data, and groups the grouped data.
- the Fourier transform for can be performed using a single command.
- the transform unit 131 may obtain first real part data by performing Fourier transform on the transposed image data.
- the converter 131 further generates transposed first real part data by applying a transpose matrix operation to the first real part data, and performs Fourier transform on the transposed first real part data to determine the frequency of the image data. Data bits corresponding to the domain can be generated.
- the converter 131 can convert the video or image into a data bit form through the SIMD technique and Fourier transform.
- the converter 131 performs pulse amplitude modulation (PAM; Pulse Amplitude Modulation), pulse width modulation (PWM; Pulse Width Modulation), and pulse position modulation (PPM; Pulse Position Modulation).
- PAM pulse amplitude modulation
- PWM pulse width modulation
- PPM Pulse Width Modulation
- PPM Pulse Position Modulation
- Voice or sound in the form of analog data can be converted into data bits using any one of the following analog-frequency modulation techniques: pulse number modulation (PNM), pulse number modulation (PNM), and pulse code modulation (PCM). .
- PPM pulse amplitude modulation
- PWM Pulse Width Modulation
- PPM Pulse Position Modulation
- Voice or sound in the form of analog data can be converted into data bits using any one of the following analog-frequency modulation techniques: pulse number modulation (PNM), pulse number modulation (PNM), and pulse code modulation (PCM).
- the conversion unit 131 best uses a pulse code modulation technique that converts analog data with continuous time and amplitude into digital bits in the order of sampling, quantizing, and encoding.
- a pulse code modulation technique that converts analog data with continuous time and amplitude into digital bits in the order of sampling, quantizing, and encoding.
- any one of the analog-frequency modulation techniques described above may be used, and is not limited thereto.
- mapping unit 130 may map the binary data value converted by the conversion unit 131 based on one data to the carrier wave in the second constellation shown in FIG. 5.
- the alignment unit 133 may align the carrier wave in the first constellation and the carrier wave in the second constellation mapped by the mapping unit 130.
- the alignment unit 133 may first align carriers in the first constellation in parallel, and then align carriers in the second constellation in parallel.
- the alignment unit 133 sorts the carriers in the first constellation first because the mapping unit 130 preferentially selects initial data, that is, the first data, among a plurality of carriers and maps it to the carrier in the first constellation.
- the carrier waves in the first constellation are first aligned in parallel.
- the alignment unit 133 may further consider the position of the carrier wave in the process of aligning the carrier wave in the first constellation and the carrier wave in the second constellation.
- the alignment unit 133 determines the position of the carrier set as the pilot carrier. More can be considered.
- the pilot carrier is a carrier used to synchronize the phase of the carrier and obtain information from the base station (B), and is not mapped to actual data, but is a carrier used to separate data bits for each data.
- the alignment unit 133 stores the carrier in the first constellation at the position of the pilot carrier. can be sorted.
- the modulator 150 modulates the carrier wave into a transmission signal.
- the modulator 150 may perform an inverse fast Fourier transform (IFFT) on each of the plurality of carrier waves transmitted from the alignment unit 133 and modulate them into a transmission signal.
- IFFT inverse fast Fourier transform
- the inverse fast Fourier transform is the inverse transform of the Fast Fourier Transformer (FFT), and the known Prime Factor Algorithm (PFA), Bruun's FFT Algorithm, Rader's FFT Algorithm, and Bluestein's FFT algorithm can be used.
- FFT Fast Fourier Transformer
- PFA Prime Factor Algorithm
- Bruun's FFT Algorithm Rader's FFT Algorithm
- Bluestein's FFT algorithm can be used.
- the modulator 150 can perform inverse fast Fourier transform on each of the plurality of carrier waves arranged in parallel in the alignment unit 133 and modulate them into a transmission signal to be transmitted to the base station (B).
- the transmission device 10 improves data transmission efficiency by selecting one or more data among a plurality of data, checking the value and order of the data, and mapping the order information of the data to the same carrier wave as the confirmed value. You can do it.
- FIG. 7 is a flow diagram of a transmission method according to an embodiment of the present invention. Since the transmission method according to an embodiment of the present invention is carried out on the same configuration as the transmission device 10 shown in FIGS. 1 to 6, FIG. The same reference numerals as the transmission device 10 in FIGS. 1 to 6 will be assigned, and repeated descriptions will be omitted.
- the transmission method according to an embodiment of the present invention is a transmission method performed by the transmission device 10 that transmits using a plurality of carrier waves, and includes a reception step (S10), a mapping step (S30), and It includes a modulation step (S50).
- the transmission device 10 performs a reception step (S10) of receiving a plurality of data from the antenna A.
- the transmission device 10 selects one or more data among a plurality of data, checks the value and order of the data, and maps the order information of the data to a carrier existing in the same order as the value (S30). ) is performed.
- mapping step (S30) if data with the same value exists among a plurality of data, the transmission device 10 selects the order of any one of the data with the same value in the carrier existing in the first order. Information can be mapped.
- the transmission device 10 performs a modulation step (S50) to modulate the carrier wave into a transmission signal.
- the transmission device 10 may perform an inverse fast Fourier transform (IFFT) on the carrier wave and modulate it into a transmission signal in the modulation step (S50).
- IFFT inverse fast Fourier transform
- the transmission device 10 can improve data transmission efficiency by performing the transmission method.
- mapping unit 130 mapping unit 130: mapping unit 130: mapping unit
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Abstract
Description
Claims (6)
- 복수의 반송파를 이용하여 전송하는 전송 장치에 있어서,안테나로부터 복수의 데이터를 수신하는 수신부;상기 복수의 데이터 중 어느 하나 이상의 데이터를 선택하여 해당 데이터의 값과 순서를 확인하고, 상기 값과 동일한 순서에 존재하는 반송파에 상기 데이터의 순서 정보를 매핑하는 매핑부; 및상기 반송파를 송신 신호로 변조시키는 변조부;를 포함하는 전송 장치.
- 제1항에 있어서,상기 매핑부는,상기 복수의 데이터 중 동일한 값을 갖는 데이터가 존재하는 경우, 첫 번째 순서에 존재하는 반송파에 동일한 값을 갖는 데이터 중 어느 하나의 데이터의 순서 정보를 매핑하는 것을 특징으로 하는, 전송 장치.
- 제1항에 있어서,상기 변조부는,상기 반송파를 역 고속 푸리에 변환(IFFT; Inverse Fast Fourier Transformer)하여 송신 신호로 변조시키는 것을 특징으로 하는, 전송 장치.
- 복수의 반송파를 이용하여 전송하는 전송 장치에서 수행되는 전송 방법에 있어서,안테나로부터 복수의 데이터를 수신하는 수신 단계;상기 복수의 데이터 중 어느 하나 이상의 데이터를 선택하여 해당 데이터의 값과 순서를 확인하고, 상기 값과 동일한 순서에 존재하는 반송파에 상기 데이터의 순서 정보를 매핑하는 매핑 단계; 및상기 반송파를 송신 신호로 변조시키는 변조 단계;를 포함하는, 전송 방법.
- 제4항에 있어서,상기 매핑 단계는,상기 복수의 데이터 중 동일한 값을 갖는 데이터가 존재하는 경우, 첫 번째 순서에 존재하는 반송파에 동일한 값을 갖는 데이터 중 어느 하나의 데이터의 순서 정보를 매핑하는 것을 특징으로 하는, 전송 방법.
- 제4항에 있어서,상기 변조 단계는,상기 반송파를 역 고속 푸리에 변환(IFFT : Inverse Fast Fourier Transformer)하여 송신 신호로 변조시키는 것을 특징으로 하는, 전송 방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/996,419 US20250350524A1 (en) | 2022-08-12 | 2023-08-10 | Transmission device and transmission method for transmitting data by using carrier signal |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2022-0101605 | 2022-08-12 | ||
| KR1020220101605A KR102736628B1 (ko) | 2022-08-12 | 2022-08-12 | 반송파 신호를 이용하여 데이터를 전송하는 전송 장치 및 전송 방법 |
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| WO2024035142A1 true WO2024035142A1 (ko) | 2024-02-15 |
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| PCT/KR2023/011810 Ceased WO2024035142A1 (ko) | 2022-08-12 | 2023-08-10 | 반송파 신호를 이용하여 데이터를 전송하는 전송 장치 및 전송 방법 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250350524A1 (ko) |
| KR (1) | KR102736628B1 (ko) |
| WO (1) | WO2024035142A1 (ko) |
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| KR20070017610A (ko) * | 2005-08-08 | 2007-02-13 | 삼성전자주식회사 | 무선통신시스템에서 대역폭이 다른 송수신기를 사용하기위한 장치 및 방법 |
| KR20120112367A (ko) * | 2009-12-07 | 2012-10-11 | 엘지전자 주식회사 | 복수의 콤포넌트 반송파를 지원하는 무선 통신 시스템에서 신호 송수신 방법 및 장치 |
| KR20130081237A (ko) * | 2010-05-21 | 2013-07-16 | 퀄컴 인코포레이티드 | 다중-반송파 통신 시스템들에서의 링크 적응 |
| KR20150012654A (ko) * | 2013-07-26 | 2015-02-04 | 삼성전자주식회사 | 이동통신 시스템에서 효과적인 다중 반송파 다중 셀 스케줄링 장치 및 방법 |
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|---|---|---|---|---|
| KR20020068374A (ko) | 1999-12-16 | 2002-08-27 | 어웨어, 인크. | 반송파 시스템에서의 비트 할당 방법 |
| US8238475B2 (en) * | 2007-10-30 | 2012-08-07 | Qualcomm Incorporated | Methods and systems for PDCCH blind decoding in mobile communications |
| KR101790523B1 (ko) * | 2010-04-22 | 2017-10-26 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
| WO2016137064A1 (ko) * | 2015-02-23 | 2016-09-01 | 엘지전자(주) | 무선 통신 시스템의 송수신 장치 및 방법 |
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2022
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2023
- 2023-08-10 US US18/996,419 patent/US20250350524A1/en active Pending
- 2023-08-10 WO PCT/KR2023/011810 patent/WO2024035142A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990088086A (ko) * | 1998-05-08 | 1999-12-27 | 카네코 히사시 | 다중반송파전송시스템,장치및방법 |
| KR20070017610A (ko) * | 2005-08-08 | 2007-02-13 | 삼성전자주식회사 | 무선통신시스템에서 대역폭이 다른 송수신기를 사용하기위한 장치 및 방법 |
| KR20120112367A (ko) * | 2009-12-07 | 2012-10-11 | 엘지전자 주식회사 | 복수의 콤포넌트 반송파를 지원하는 무선 통신 시스템에서 신호 송수신 방법 및 장치 |
| KR20130081237A (ko) * | 2010-05-21 | 2013-07-16 | 퀄컴 인코포레이티드 | 다중-반송파 통신 시스템들에서의 링크 적응 |
| KR20150012654A (ko) * | 2013-07-26 | 2015-02-04 | 삼성전자주식회사 | 이동통신 시스템에서 효과적인 다중 반송파 다중 셀 스케줄링 장치 및 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102736628B1 (ko) | 2024-12-03 |
| KR20240022916A (ko) | 2024-02-20 |
| US20250350524A1 (en) | 2025-11-13 |
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