JP6971569B2 - 送信装置、および送信方法 - Google Patents
送信装置、および送信方法 Download PDFInfo
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- JP6971569B2 JP6971569B2 JP2016249604A JP2016249604A JP6971569B2 JP 6971569 B2 JP6971569 B2 JP 6971569B2 JP 2016249604 A JP2016249604 A JP 2016249604A JP 2016249604 A JP2016249604 A JP 2016249604A JP 6971569 B2 JP6971569 B2 JP 6971569B2
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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
- H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
- H04L27/3411—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power reducing the peak to average power ratio or the mean power of the constellation; Arrangements for increasing the shape gain of a signal set
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/141—Discrete Fourier transforms
- G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0059—Out-of-cell user aspects
-
- 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
- H04L27/2614—Peak power aspects
- H04L27/2621—Reduction thereof using phase offsets between subcarriers
-
- 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
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
-
- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
- H04L27/2675—Pilot or known symbols
-
- 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
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
- H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
- H04L27/3872—Compensation for phase rotation in the demodulated signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J2011/0003—Combination with other multiplexing techniques
- H04J2011/0009—Combination with other multiplexing techniques with FDM/FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0083—Signalling arrangements
- H04L2027/0087—Out-of-band signals, (e.g. pilots)
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Discrete Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Description
2 受信装置
101 誤り訂正符号化部
102 コンスタレーションマッパー
205 コンスタレーションデマッパー
103 周波数配置部
104 パイロット挿入部
105 セグメント分割部
106 部分波形生成部
106a IFFT部
106b 位相回転部
107 加算部
108 PAPR評価部
109 GI挿入部
110 位相回転パターン生成部
201 GI削除部
202 FFT部
203 帯域切出部
204 伝送路推定部
206 誤り訂正復号化部
Claims (3)
- OFDM(Orthogonal Frequency Division Multiplexing)のサブキャリアの周波数帯域に、予め設定された間隔でパイロットシンボルを挿入する挿入部と、
前記サブキャリアの周波数帯域内に、当該周波数帯域の一部であり、予め設定された外部装置へ送信する送信信号に従って変調されかつ一方の端に前記パイロットシンボルを有する所定帯域を配置する配置部と、
前記サブキャリアの周波数帯域を複数のブロックに分割する分割部と、
前記ブロックに対して逆高速フーリエ変換を行うIFFT部と、
逆高速フーリエ変換を行った前記ブロック毎に、PAPR(Peak-to-Average Power Ratio)特性を低減する位相回転を行う位相回転部と、
前記位相回転部によって位相回転を行った前記送信信号を合成して前記外部装置に送信する送信部と、を備え、
前記分割部は、前記所定帯域と、当該所定帯域において前記一方の端とは反対側の他方の端の外側の少なくとも1つの前記パイロットシンボルとを、1つの前記ブロックに含め、
前記位相回転部は、前記ブロックのうち前記所定帯域を含む第1ブロックに対して行う位相回転の量の候補を、前記ブロックのうち前記所定帯域を含まない第2ブロックに対して行う位相回転の量の候補より多くする送信装置。 - 前記送信部は、前記所定帯域の前記送信信号をブーストする請求項1に記載の送信装置。
- OFDMのサブキャリアの周波数帯域に、予め設定された間隔でパイロットシンボルを挿入し、
前記サブキャリアの周波数帯域内に、当該周波数帯域の一部であり、予め設定された外部装置へ送信する送信信号に従って変調されかつ一方の端に前記パイロットシンボルを有する所定帯域を配置し、
前記サブキャリアの周波数帯域を複数のブロックに分割し、
前記ブロックに対して逆高速フーリエ変換を行い、
逆高速フーリエ変換を行った前記ブロック毎に、PAPR特性を低減する位相回転を行い、
位相回転を行った前記送信信号を合成して前記外部装置に送信し、
前記所定帯域と、当該所定帯域において前記一方の端とは反対側の他方の端の外側の少なくとも1つの前記パイロットシンボルとを、1つの前記ブロックに含め、
前記ブロックのうち前記所定帯域を含む第1ブロックに対して行う位相回転の量の候補を、前記ブロックのうち前記所定帯域を含まない第2ブロックに対して行う位相回転の量の候補より多くする、
ことを含む送信方法。
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JP2016249604A JP6971569B2 (ja) | 2016-12-22 | 2016-12-22 | 送信装置、および送信方法 |
US15/839,373 US10587448B2 (en) | 2016-12-22 | 2017-12-12 | Transmission device, reception device, and transmission method |
JP2021074354A JP7250062B2 (ja) | 2016-12-22 | 2021-04-26 | 受信装置 |
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Families Citing this family (5)
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CN111865858B (zh) * | 2019-04-30 | 2022-01-11 | 华为技术有限公司 | 一种基于部分传输序列技术的边信息传输方法和装置 |
CN112637098B (zh) * | 2020-11-25 | 2022-01-14 | 北京智芯微电子科技有限公司 | 降低ofdm系统峰均比的方法和装置、信号发送端与接收端 |
CN112803973B (zh) * | 2021-04-01 | 2021-07-09 | 中国人民解放军国防科技大学 | 一种mimo-ofdm系统及其分集方法、装置、系统 |
TWI792954B (zh) * | 2022-03-23 | 2023-02-11 | 瑞昱半導體股份有限公司 | 處理峰均功率比的通訊裝置及方法 |
US20240195671A1 (en) * | 2022-12-09 | 2024-06-13 | Qualcomm Incorporated | Techniques for partial transmit sequence transmission using multi-mode index modulation |
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JP2018107516A (ja) | 2018-07-05 |
US20180183648A1 (en) | 2018-06-28 |
JP7250062B2 (ja) | 2023-03-31 |
JP2021106435A (ja) | 2021-07-26 |
US10587448B2 (en) | 2020-03-10 |
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