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WO2018031061A1 - Conception de signaux de référence de démodulation de liaison latérale - Google Patents

Conception de signaux de référence de démodulation de liaison latérale Download PDF

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Publication number
WO2018031061A1
WO2018031061A1 PCT/US2017/014033 US2017014033W WO2018031061A1 WO 2018031061 A1 WO2018031061 A1 WO 2018031061A1 US 2017014033 W US2017014033 W US 2017014033W WO 2018031061 A1 WO2018031061 A1 WO 2018031061A1
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WO
WIPO (PCT)
Prior art keywords
sequence
symbol
sidelink
dmrs
physical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2017/014033
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English (en)
Inventor
Alexey Khoryaev
Andrey Chervyakov
Dmitry Belov
Mikhail Shilov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intel Corp
Original Assignee
Intel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel Corp filed Critical Intel Corp
Publication of WO2018031061A1 publication Critical patent/WO2018031061A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

Definitions

  • the orthogonal sequence w ( ⁇ ) for V2X PSBCH may be defined to be [+1 + 1 + 1] (e.g., a single sequence). It is noted that the selection rule may be inversed without departing from the scope of the description.
  • the DMRS sequence may vary on a per-symbol basis.
  • one or more of the enhanced PC5 physical channels e.g., V2X PSSCH, V2X PSCCH, V2X PSBCH
  • V2X PSSCH V2X PSSCH
  • V2X PSCCH V2X PSBCH
  • per symbol sequence variation may be the result of modifying the reference signal sequence
  • the sequence shift pattern s may be modified to change on a per-DMRS symbols basis
  • the sequence shift pattern may be defined as
  • FIG. 3 is a block diagram illustrating one example of how DMRS 210 may be mapped to the PSCCH.
  • the mapping pattern of DMRS 210 to the PSCCH is a 12 subcarrier pattern (k) that is one subframe 1 10 (e.g., two slots 1 15) in length.
  • the mapping pattern of DMRS 210 to the PSCCH is a 12 subcarrier pattern (k) that is one subframe 1 10 (e.g., two slots 1 15) in length.
  • method 600 may be performed by an application specific processor, programmable application specific integrated circuit (ASIC), field programmable gate array (FPGA), or the like.
  • ASIC programmable application specific integrated circuit
  • FPGA field programmable gate array
  • the baseband circuitry 910 may include at least one of a second generation (2G) baseband processor 91 OA, a third generation (3G) baseband processor 910B, a fourth generation (4G) baseband processor 910C, other baseband processor(s) 910D for other existing generations, and generations in development or to be developed in the future (e.g., fifth generation (5G), 6G, etc.).
  • the baseband circuitry 910 e.g., at least one of baseband processors 910A-910D
  • the radio control functions may include signal modulation/demodulation,
  • modulation/demodulation circuitry of the baseband circuitry 910 may be programmed to perform Fast-Fourier Transform (FFT), precoding, constellation mapping/demapping functions, other functions, and combinations thereof.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 910 may be programmed to perform convolutions, tail-biting convolutions, turbo, Viterbi, Low Density Parity Check (LDPC) encoder/decoder functions, other functions, and combinations thereof.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 910 may be programmed to perform convolutions, tail-biting convolutions, turbo, Viterbi, Low Density Parity Check (LDPC) encoder/decoder functions, other functions, and combinations thereof.
  • LDPC Low Density Parity Check
  • the baseband circuitry 910 may include elements of a protocol stack.
  • elements of an evolved universal terrestrial radio access network (E-UTRAN) protocol including, for example, physical (PHY), media access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP), and/or radio resource control (RRC) elements.
  • a central processing unit (CPU) 910E of the baseband circuitry 910 may be programmed to run elements of the protocol stack for signaling of the PHY, MAC, RLC, PDCP and/or RRC layers.
  • the baseband circuitry 910 may include one or more audio digital signal processor(s) (DSP) 91 OF.
  • the audio DSP(s) 91 OF may include elements for compression/decompression and echo cancellation.
  • the audio DSP(s) 91 OF may also include other suitable processing elements.
  • the synthesizer circuitry 915D may be configured to synthesize an output frequency for use by the mixer circuitry 915A of the RF circuitry 915 based on a frequency input and a divider control input. In some embodiments, the synthesizer circuitry 915D may be a fractional N/N+1 synthesizer.
  • the FEM circuitry 920 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 925, amplify the received signals, and provide the amplified versions of the received signals to the RF circuitry 915 for further processing.
  • the FEM circuitry 920 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 915 for transmission by at least one of the one or more antennas 925.
  • Example 3 is the apparatus of Example 2 and/or any of the other
  • Example 10 is the apparatus of Example 9 and/or any of the other
  • Example 1 1 is an apparatus for a user equipment.
  • the apparatus includes logic to determine a symbol index (m) from a plurality of symbol indices, where the plurality of symbol indices include 0, 1 , and 2; and one or more processing units to: generate a reference signal sequence for the determined symbol index (m), apply an element of an orthogonal sequence (w ( ⁇ ( ) m)) to the reference signal sequence to generate a demodulation reference signal (DMRS), where the element is selected based on the determined symbol index (m), and map the generated DMRS to a symbol of a subframe of a sidelink physical channel, where the subframe includes a DMRS for each of the plurality of symbol indices (m).
  • DMRS demodulation reference signal
  • PSCCH PSCCH
  • the plurality of symbol indices include 0, 1 , 2, and 3.
  • Example 28 is the apparatus of Example 26 and/or any of the other Examples described herein, where the orthogonal sequence (w ( ⁇ ) (m)) is selected from a set of orthogonal sequences that includes a first sequence and a second sequence, and where the first sequence is [+1 , +1 , +1 ], and where the second sequence is [+1 , -1 , +1 ].
  • Example 30 is the apparatus of Example 25 and/or any of the other Examples described herein, where the LTE sidelink physical channel is one of a Physical Sidelink Shared Channel (PSSCH) and a Physical Sidelink Control Channel (PSCCH).
  • PSSCH Physical Sidelink Shared Channel
  • PSCCH Physical Sidelink Control Channel
  • Example 35 is an apparatus for a user equipment.
  • the apparatus includes one or more baseband processing units, where instructions are executable by the one or more baseband processing that cause the one or more baseband processing units to: determine a symbol index (m) from a plurality of symbol indices, where the plurality of symbol indices include 0, 1 , and 2, generate a reference signal sequence for the determined symbol index (m), apply an element of an orthogonal sequence (w ( ⁇ ( ) m)) to the reference signal sequence to generate a demodulation reference signal (DMRS), where the element is selected based on the determined symbol index (m), and map the generated DMRS to a symbol of a subframe of a sidelink physical channel, where the subframe includes a DMRS for each of the plurality of symbol indices (m).
  • DMRS demodulation reference signal
  • sequence-group number (u) is changed for each symbol index (m).
  • Example 73 is a method for wireless communication.
  • the method includes determining a symbol index (m) from a plurality of symbol indices, where each symbol index (m) corresponds to a symbol (/) of a subframe of a Long-Term Evolution (LTE) sidelink physical channel, and where the plurality of symbol indices includes at least three symbol indices (m), determining a plurality of elements of an orthogonal sequence (w ( ⁇ ) (m)), where each element in the orthogonal sequence (w ( ⁇ ) (m)) corresponds to one of the symbol indices (m) in the plurality of symbol indices, generating a plurality of demodulation reference signals (DMRSs) based on the plurality of elements of the orthogonal sequence (w ( ⁇ ) (m)), where each DMRS in the plurality of DMRSs corresponds to one of the elements in the orthogonal sequence (w ( ⁇ ) (m)), and mapping each DMRS of the plurality of DMRSs to its corresponding
  • Example 82 is the method of Example 81 and/or any of the other
  • Example 1 10 is the computer-readable medium of Example 109 and/or any of the other Examples described herein, where the orthogonal sequence
  • Example 1 16 is the computer-readable medium of Example 107 and/or any of the other Examples described herein, where the instructions further cause the computing device to generate the reference signal sequence using a
  • sequence-group number (u) and where the sequence-group number (u) is changed for each symbol index (m).

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne des systèmes, des procédés et des dispositifs de communication par liaison latérale. Un indice de symbole (m) est déterminé à partir d'une pluralité d'indices de symbole, chaque indice de symbole (m) correspondant à un symbole (l) d'une sous-trame d'un canal physique de liaison latérale d'évolution à long terme (LTE). En outre, la pluralité d'indices de symboles comprend au moins trois indices de symbole (m). Une pluralité d'éléments d'une séquence orthogonale (w( λ) (m)) sont également déterminés, chaque élément de la séquence orthogonale (w( λ) (m)) correspondant à l'un des indices de symbole (m) de la pluralité d'indices de symbole. Une pluralité de signaux de référence de démodulation (DMRS) sont générés sur la base de la pluralité d'éléments de la séquence orthogonale (w( λ) (m)). Chaque DMRS de la pluralité de DMRS est mis en correspondance avec son symbole correspondant (l) de la sous-trame.
PCT/US2017/014033 2016-08-10 2017-01-19 Conception de signaux de référence de démodulation de liaison latérale Ceased WO2018031061A1 (fr)

Applications Claiming Priority (2)

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US201662373051P 2016-08-10 2016-08-10
US62/373,051 2016-08-10

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WO2018031061A1 true WO2018031061A1 (fr) 2018-02-15

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WO2020209656A1 (fr) * 2019-04-12 2020-10-15 한양대학교 산학협력단 Procédé pour effectuer une communication de liaison latérale, et dispositif associé
CN112385252A (zh) * 2018-11-01 2021-02-19 松下电器（美国）知识产权公司 发送设备、接收设备及其方法
WO2021088618A1 (fr) * 2019-11-09 2021-05-14 上海朗帛通信技术有限公司 Procédé et dispositif de communication sans fil
WO2021098305A1 (fr) * 2019-11-21 2021-05-27 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Appareil et procédé d'émission ou de réception de canal de diffusion de liaison latérale physique
WO2021204049A1 (fr) * 2020-04-07 2021-10-14 维沃移动通信有限公司 Procédé et terminal de transmission de dmrs
CN113508629A (zh) * 2019-11-20 2021-10-15 三星电子株式会社 无线通信系统中收发侧链路数据的参考信号的方法和装置
CN114731320A (zh) * 2019-11-08 2022-07-08 高通股份有限公司 侧链路广播信道发送
US11489650B2 (en) 2019-04-12 2022-11-01 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Method for performing sidelink communication and device therefor
US11588569B2 (en) 2018-08-10 2023-02-21 Innovative Technology Lab Co., Ltd. Method and apparatus for transmitting and receiving sidelink synchronization signal in wireless communication system
US12232087B2 (en) 2018-11-23 2025-02-18 Beijing Xiaomi Mobile Software Co., Ltd. Direct link-based transmission method and apparatus

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11588569B2 (en) 2018-08-10 2023-02-21 Innovative Technology Lab Co., Ltd. Method and apparatus for transmitting and receiving sidelink synchronization signal in wireless communication system
US12375200B2 (en) 2018-08-10 2025-07-29 Innovative Technology Lab Co., Ltd. Method and apparatus for transmitting and receiving sidelink synchronization signal in wireless communication system
US11929825B2 (en) 2018-08-10 2024-03-12 Innovative Technology Lab Co., Ltd. Method and apparatus for transmitting and receiving sidelink synchronization signal in wireless communication system
CN112385252A (zh) * 2018-11-01 2021-02-19 松下电器（美国）知识产权公司 发送设备、接收设备及其方法
US12232087B2 (en) 2018-11-23 2025-02-18 Beijing Xiaomi Mobile Software Co., Ltd. Direct link-based transmission method and apparatus
EP3886521B1 (fr) * 2018-11-23 2025-09-03 Beijing Xiaomi Mobile Software Co., Ltd. Appareil et méthode de transmission basé sur liaison directe
US11489650B2 (en) 2019-04-12 2022-11-01 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Method for performing sidelink communication and device therefor
US11818078B2 (en) 2019-04-12 2023-11-14 Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University) Method for performing sidelink communication and device therefor
WO2020209656A1 (fr) * 2019-04-12 2020-10-15 한양대학교 산학협력단 Procédé pour effectuer une communication de liaison latérale, et dispositif associé
CN114731320A (zh) * 2019-11-08 2022-07-08 高通股份有限公司 侧链路广播信道发送
US12323935B2 (en) 2019-11-09 2025-06-03 Bunker Hill Technologies Llc Method and device of transmission relating to synchronization and dual link for wireless communication
WO2021088618A1 (fr) * 2019-11-09 2021-05-14 上海朗帛通信技术有限公司 Procédé et dispositif de communication sans fil
CN113508629A (zh) * 2019-11-20 2021-10-15 三星电子株式会社 无线通信系统中收发侧链路数据的参考信号的方法和装置
WO2021098305A1 (fr) * 2019-11-21 2021-05-27 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Appareil et procédé d'émission ou de réception de canal de diffusion de liaison latérale physique
US12120710B2 (en) 2019-11-21 2024-10-15 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Apparatus and method for transmitting or receiving physical sidelink broadcast channel
WO2021204049A1 (fr) * 2020-04-07 2021-10-14 维沃移动通信有限公司 Procédé et terminal de transmission de dmrs

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