WO2019100739A1 - Procédé et dispositif de détermination de séquence - Google Patents

Procédé et dispositif de détermination de séquence Download PDF

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Publication number
WO2019100739A1
WO2019100739A1 PCT/CN2018/096897 CN2018096897W WO2019100739A1 WO 2019100739 A1 WO2019100739 A1 WO 2019100739A1 CN 2018096897 W CN2018096897 W CN 2018096897W WO 2019100739 A1 WO2019100739 A1 WO 2019100739A1
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Prior art keywords
sequence
group
subcarriers
combination
mapped
Prior art date
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PCT/CN2018/096897
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English (en)
Chinese (zh)
Inventor
龚名新
孙昊
曲秉玉
Original Assignee
华为技术有限公司
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
Priority claimed from CN201711487326.1A external-priority patent/CN109842478A/zh
Priority to CN201880002134.3A priority Critical patent/CN110089094B/zh
Priority to CA3083561A priority patent/CA3083561C/fr
Priority to PL18882146T priority patent/PL3554041T3/pl
Priority to KR1020207018263A priority patent/KR102495784B1/ko
Priority to CN202011101932.7A priority patent/CN112152770B/zh
Priority to BR112020010387-0A priority patent/BR112020010387B1/pt
Priority to NZ765368A priority patent/NZ765368A/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20204043.2A priority patent/EP3855696A1/fr
Priority to EP18882146.6A priority patent/EP3554041B1/fr
Priority to JP2020528880A priority patent/JP7106641B2/ja
Priority to US16/352,475 priority patent/US10439779B2/en
Publication of WO2019100739A1 publication Critical patent/WO2019100739A1/fr
Priority to US16/566,207 priority patent/US10979188B2/en
Priority to US17/227,077 priority patent/US11646843B2/en
Priority to JP2022112484A priority patent/JP7379604B2/ja
Priority to US18/183,742 priority patent/US11902200B2/en
Priority to US18/487,572 priority patent/US20240063966A1/en

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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
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • Embodiments of the present invention relate to the field of communications, and, more particularly, to a sequence determining method and apparatus.
  • the Long Term Evolution (LTE) system sends and sends Uplink Control Information (UCI) through a physical uplink control channel (PUCCH), where one PUCCH occupies more than one slot.
  • Uplink Control Information UCI
  • PUCCH physical uplink control channel
  • OFDM Orthogonal Frequency Division Multiplexing
  • OFDM Discrete Fourier Transform
  • DFT-s-OFDM Discrete Fourier Transform-spread-OFDM
  • the demodulation reference signal (DMRS) of the PUCCH is generated based on the Zadoff-Chu (ZC) sequence.
  • the LTE system includes multiple sequences.
  • terminal devices of different cells can use different sequences of the same length to reduce interference between cells to a certain extent.
  • a signal generated by a sequence of a longer length may generate a signal generated by a sequence of a shorter length.
  • the LTE system introduces the concept of sequence groups, in which each sequence group contains sequences of different lengths, and the sequence correlation within the same group is higher.
  • the index v of the sequence group is calculated according to a predefined rule, where v ⁇ ⁇ 0, 1, . . . , 29 ⁇ .
  • q is determined according to the index v of the sequence group by the following formula:
  • N ZC is the largest prime number less than the length of the DMRS sequence.
  • the base sequence of the DMRS sequence Determined by the following formula
  • M represents the length of the DMRS sequence.
  • a reference signal sequence (eg, a DMRS sequence) is defined as a cyclic shift sequence of a base sequence.
  • At least two terminal devices in the adjacent cell use sequences in different sequence groups at the same time, so that interference between cells can be reduced to some extent.
  • the demodulation reference signal (DMRS) of different formats of PUCCH is also based on sequence generation.
  • the DMRS is generated based on a Computer Generated Sequence (CGS) or based on a Zadoff-Chu (ZC) sequence.
  • CGS Computer Generated Sequence
  • ZC Zadoff-Chu
  • Embodiments of the present invention provide a sequence determining method and apparatus.
  • a sequence determination method determines an index of the first sequence or the first sequence in the sequence group according to an index of the sequence group, wherein the sequence group includes the sequence ⁇ x n ⁇ and the sequence ⁇ y m ⁇ .
  • a sequence determining wireless device comprising a processor and a memory coupled to the processor.
  • the processor is configured to determine, according to an index of a sequence group, an index of a first sequence or the first sequence in the sequence group, where the sequence group includes a sequence ⁇ x n ⁇ and a sequence ⁇ y m ⁇ ;
  • the processor is configured to generate a second sequence based on the first sequence, or generate a second sequence based on an index of the first sequence, where if the first sequence is the sequence ⁇ x n ⁇ , The second sequence is the sequence ⁇ f n ⁇ , or, if the first sequence is the sequence ⁇ y m ⁇ , the second sequence is the sequence ⁇ g m ⁇ .
  • a sequence determination method is provided.
  • the wireless device determines the sequence index based on the index of the sequence group. Further, the wireless device generates a second sequence based on the sequence index.
  • the sequence group comprises a sequence ⁇ x n ⁇ and a sequence ⁇ y m ⁇
  • the second sequence is a sequence ⁇ f n ⁇
  • the second sequence is a sequence ⁇ g m ⁇ .
  • a sequence determining wireless device comprising a processor and a memory coupled to the processor.
  • the processor is configured to determine a sequence index according to an index of the sequence group. Further, the processor is further configured to generate a second sequence based on the sequence index.
  • the sequence group comprises a sequence ⁇ x n ⁇ and a sequence ⁇ y m ⁇
  • the second sequence is a sequence ⁇ f n ⁇
  • the second sequence is a sequence ⁇ g m ⁇ .
  • f n is an element in the sequence ⁇ f n ⁇
  • g m is an element in the sequence ⁇ g m ⁇
  • the length of the sequence ⁇ f n ⁇ is N
  • the length of the sequence ⁇ g m ⁇ is M
  • the n and the m are integers, and 0 ⁇ n ⁇ N-1
  • m is an integer, 0 ⁇ m ⁇ M-1, wherein
  • A is a non-zero complex number
  • ⁇ is a real number
  • u is a non-zero complex number
  • s n is an element in the sequence ⁇ s n ⁇ .
  • the i is an integer, 0 ⁇ i ⁇ M prime -1, where M prime is the largest prime number less than M.
  • the index of the sequence index or the first sequence is the n or the q.
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the i is an integer, 0 ⁇ i ⁇ 30.
  • the roots of different sequence groups can maintain a low cross-correlation between the roots.
  • the long PUCCH long PUCCH
  • the interference between the long PUCCH cells can be reduced while ensuring the coverage of the long PUCCH.
  • the wireless device may be a terminal device, or a device in the terminal device, for example, a modem processor, or may be an access network device, or a device in the access network device, for example, a modem processor.
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the q is at least one of the following combinations:
  • the i is an integer, 0 ⁇ i ⁇ 30.
  • the long PUCCH long PUCCH
  • the interference between the long PUCCH cells can be reduced while ensuring the coverage of the long PUCCH.
  • the foregoing wireless device may be a terminal device, or may be an access network device.
  • the step of transmitting a signal may be performed by the terminal device.
  • the step involved in processing the received signal may be performed by the access network device.
  • the embodiment may further include: the wireless device mapping the second sequence to the subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , and the sequence ⁇ f n ⁇ is mapped to The spacing of the center frequencies of any two adjacent subcarriers of the N subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped to M subcarriers, and the center frequency interval of any two adjacent subcarriers of the M subcarriers is t times subcarrier spacing, t is a positive integer; The signal generated by the second sequence.
  • the second sequence is the sequence ⁇ f n ⁇ , and the sequence ⁇ f n ⁇ is mapped to 12 subcarriers, any adjacent one of the 12 subcarriers
  • the interval between the center frequencies of the two subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , and the sequence ⁇ g m ⁇ is mapped to 36 subcarriers.
  • the center frequency interval of any two adjacent subcarriers of the 36 subcarriers is t times the subcarrier spacing, t is a positive integer; and the signal generated based on the second sequence is transmitted.
  • the embodiment may further include: the wireless device mapping the second sequence to the subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , and the sequence ⁇ f n ⁇ is mapped to The spacing of the center frequencies of any two adjacent subcarriers of the N subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped onto M subcarriers, which are consecutive subcarriers, where t is a positive integer; and the wireless device transmits a signal generated based on the second sequence.
  • the spacing of the center frequencies of any two adjacent subcarriers of the 12 subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇
  • the sequence ⁇ g m ⁇ is mapped onto 36 subcarriers, which are consecutive subcarriers, where t is a positive integer; and the wireless device transmits a signal generated based on the second sequence.
  • the wireless device further includes: a transceiver.
  • the processor is further configured to map the second sequence to a subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , and the sequence ⁇ f n ⁇ is mapped to N subcarriers, An interval between a center frequency of any two adjacent subcarriers of the N subcarriers is 2t times a subcarrier spacing or a t times subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped to M subcarriers, wherein a center frequency interval of any two adjacent subcarriers of the M subcarriers is t times a subcarrier spacing, t is a positive integer; and the transceiver is configured to transmit based on The signal generated by the second sequence.
  • the processor is further configured to map the second sequence to a subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , The sequence ⁇ f n ⁇ is mapped to 12 subcarriers, and an interval between center frequencies of any two adjacent subcarriers of the 12 subcarriers is 2t times subcarrier spacing or t times subcarrier spacing, or The second sequence is the sequence ⁇ g m ⁇ , and the sequence ⁇ g m ⁇ is mapped to 36 subcarriers, and the center frequency interval of any two adjacent subcarriers of the 36 subcarriers is t times the subcarrier spacing.
  • t is a positive integer; and the transceiver is configured to transmit a signal generated based on the second sequence.
  • one sequence group number corresponds to at least two sequences, and one sequence may be For use in continuous subcarrier mapping, at least one sequence is used for equal interval subcarrier mapping, and by designing the combination relationship of the above sequences, the transmission signal with equal interval mapping and other components in the group are adopted.
  • the cross-correlation of the transmitted signal after the sequence is continuously mapped is as high as possible.
  • A is a modulation symbol, or is a constant, or is a value determined based on the power control parameter.
  • the embodiment may further include: determining, by the wireless device, an index of the sequence group based on a cell identifier of a cell where the terminal device is located; or The wireless device determines an index of the sequence group based on the identity received through the higher layer signaling.
  • the wireless device further includes: a transceiver, wherein the processor is further configured to map the second sequence to a subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , The sequence ⁇ f n ⁇ is mapped to the N subcarriers, and the center frequency interval of any two adjacent subcarriers of the N subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the The second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped onto M subcarriers, the M subcarriers are consecutive subcarriers, where t is a positive integer; and the transceiver is used for A signal generated based on the second sequence is transmitted.
  • the processor is further configured to map the second sequence to a subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , The sequence ⁇ f n ⁇ is mapped to the N subcarriers, and the center frequency interval of any two adjacent subcarriers of the
  • the processor is further configured to map the second sequence to a subcarrier, where the second sequence is the sequence ⁇ f n ⁇ , The sequence ⁇ f n ⁇ is mapped to 12 subcarriers, and an interval between center frequencies of any two adjacent subcarriers of the 12 subcarriers is 2t times subcarrier spacing or t times subcarrier spacing, or The second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped onto 36 subcarriers, the 36 subcarriers are consecutive subcarriers, where t is a positive integer; and the transceiver is used for A signal generated based on the second sequence is transmitted.
  • A is a modulation symbol, either a constant or a value determined based on the power control parameters.
  • the processor is further configured to determine an index of the sequence group based on a cell identifier of a cell where the terminal device is located before determining the first sequence in the sequence group according to an index of the sequence group; or The identifier received by the signaling determines an index of the sequence group.
  • the wireless device further includes: a transceiver, wherein the processor is further configured to determine, according to the identifier of the first time unit, before determining the first sequence in the sequence group according to an index of the sequence group An index of the sequence group; the transceiver is configured to transmit a signal generated based on the second sequence in the first time unit.
  • the processor is further configured to perform processing according to the first signal received by the second sequence, where the second sequence is the sequence ⁇ f n ⁇ , where
  • the sequence ⁇ f n ⁇ is mapped to the N subcarriers, and the center frequency interval of any two adjacent subcarriers of the N subcarriers is 2t times the subcarrier spacing or the t times the subcarrier spacing, or the
  • the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped onto M subcarriers, the M subcarriers being consecutive subcarriers, where t is a positive integer; or, the sequence ⁇ f n ⁇ is mapped to N subcarriers, wherein an interval of a center frequency of any two adjacent subcarriers of the N subcarriers is 2t times a subcarrier spacing or a t times subcarrier spacing, or the second sequence is the The sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped to M subcarriers, and the center frequency interval of any two adjacent subcarriers of the M subcarriers is t times the subcarrier spacing, and t is
  • the sequence ⁇ f n ⁇ is mapped to 12 subcarriers, and the center frequency of any two adjacent subcarriers of the 12 subcarriers is separated by 2t.
  • Carrier spacing or t times subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped to 36 subcarriers, and the 36 subcarriers are consecutive subcarriers.
  • t is a positive integer; or, the sequence ⁇ f n ⁇ is mapped to 12 subcarriers, and the center frequency interval of any two adjacent subcarriers of the 12 subcarriers is 2t times the subcarrier spacing or t times Subcarrier spacing, or the second sequence is the sequence ⁇ g m ⁇ , the sequence ⁇ g m ⁇ is mapped to 36 subcarriers, and the center frequency of any two adjacent subcarriers of the 36 subcarriers The interval is t times the subcarrier spacing, and t is a positive integer.
  • A is a constant when the wireless device is an access network device.
  • the processor is further configured to determine an index of the sequence group based on an identifier of the first time unit before determining the first sequence in the sequence group according to an index of the sequence group; where the first The signal is received within the first time unit.
  • the wireless device further includes a transceiver, where
  • the processor is further configured to determine an index of the sequence group based on the cell identifier before determining the first sequence in the sequence group according to an index of the sequence group; or
  • the transceiver is configured to send an identifier to the terminal device by using high layer signaling, where the identifier is used to determine an index of the sequence group.
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, and a fifth sequence group. Part or all,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, a fifth sequence group, and a first sequence group.
  • a sixth sequence group a seventh sequence group, an eighth sequence group, a ninth sequence group, a tenth sequence group, and some or all of the eleventh sequence group,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a sixth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a seventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including an eighth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a ninth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a tenth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including the eleventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, and a fifth sequence group. Part or all,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, a fifth sequence group, and a first sequence group. Part or all of the six sequence groups,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a sixth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, a fifth sequence group, and a first sequence group.
  • a sixth sequence group a seventh sequence group, an eighth sequence group, a ninth sequence group, a tenth sequence group, and some or all of the eleventh sequence group,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a sixth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a seventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including an eighth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a ninth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a tenth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including the eleventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group is one of a plurality of sequence groups, and the plurality of sequence groups includes a first sequence group, a second sequence group, a third sequence group, a fourth sequence group, a fifth sequence group, and a first sequence group.
  • a sixth sequence group a seventh sequence group, an eighth sequence group, a ninth sequence group, a tenth sequence group, an eleventh sequence group, and some or all of the twelfth sequence group,
  • the first sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the second sequence comprises a sequence set ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the third sequence comprises a set of sequences ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fourth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the fifth sequence group comprising a sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a sixth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a seventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including an eighth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a ninth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a tenth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group including the eleventh sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group comprising a twelfth sequence ⁇ x n ⁇ and ⁇ y m ⁇ sequence corresponding to a combination of the ⁇ s n ⁇ is the q:
  • the sequence group further includes a sequence ⁇ z m ⁇ , and if the first sequence is the sequence ⁇ z m ⁇ , the second sequence is a sequence ⁇ h m ⁇ ,
  • the i is an integer, 0 ⁇ i ⁇ M prime -1, wherein M prime is the largest prime number less than M
  • the combination of the sequence ⁇ s n ⁇ and the p is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the p is at least one of the following combinations:
  • the combination of the sequence ⁇ s n ⁇ and the p is at least one of the following combinations:
  • the sequence ⁇ h m ⁇ is mapped to the M subcarriers, and the interval between the center frequencies of any two adjacent subcarriers of the M subcarriers is 2t times the subcarrier spacing, and t is a positive integer.
  • the i is an integer, 0 ⁇ i ⁇ 30, and the sequence ⁇ g m ⁇ is mapped to 36 subcarriers, and the center frequency interval of any two adjacent subcarriers of the 36 subcarriers is 2t times the subcarrier spacing.
  • t is a positive integer.
  • the second sequence is used to send uplink control information or a reference signal.
  • a communication device for performing the above method.
  • These functions can be implemented in hardware or in software by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • a computing storage medium containing instructions that, when run on a computer, cause the computer to perform the above method.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic diagram of a wireless communication system applied to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram showing a possible structure of an access network device in the above wireless communication system.
  • FIG. 3 is a schematic diagram showing a possible structure of a terminal device in the above wireless communication system.
  • FIG. 4 is a schematic diagram of signaling of a method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a frequency domain subcarrier mapping manner according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a frequency domain subcarrier mapping manner according to another embodiment of the present invention.
  • One in the embodiments of the present invention means a single individual, and does not mean that it can only be one individual, and cannot be applied to other individuals.
  • a terminal device in the embodiment of the present invention refers to a certain terminal device, and does not mean that it can be applied to only one specific terminal device.
  • system can be used interchangeably with "network”.
  • references to "one embodiment” (or “an implementation") or “an embodiment” (or “an implementation”) in this application are meant to include the particular features, structures, features, etc. described in connection with the embodiments, in at least one embodiment. . Thus, “in one embodiment” or “in an embodiment” or “an”
  • the terms "and/or” and “at least one” in the case of “A and/or B” and “at least one of A and B” in the embodiment of the present invention include any one of three schemes, That is, a scheme including A but not including B, a scheme including B not including A, and a scheme including both options A and B.
  • such a phrase includes any of the six schemes, ie, includes A, but does not include the B and C schemes, including B without A and C, including C but not A and B, including A and B but not C, including B and C but not A
  • the scheme includes the schemes of A and C but not B, and the schemes of all three options A, B and C.
  • FIG. 1 shows a schematic diagram of communication between a wireless device and a wireless communication system.
  • the wireless communication system may be a system that applies various radio access technologies (RATs), such as code division multiple access (CDMA), time division multiple access (TDMA), Frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), or single carrier frequency division multiple access (SC-FDMA) and other systems .
  • RATs radio access technologies
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA Frequency division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • the wireless communication system may be a long term evolution (LTE) system, a CDMA system, a wideband code division multiple access (wideband CDMA (WCDMA) system, a global system for mobile communications (GSM) system, a wireless local area network ( Wireless local area network (WLAN) system, New Radio (NR) system, various evolved or fused systems, and systems for future-oriented communication technologies.
  • LTE long term evolution
  • CDMA compact code division multiple access
  • WCDMA wideband CDMA
  • GSM global system for mobile communications
  • WLAN Wireless local area network
  • NR New Radio
  • a wireless communication system can include any number of network devices as well as terminal devices.
  • the wireless communication system may also include one or more core network devices or devices for carrying virtualized network functions, and the like.
  • the access network device 102 can provide services to the wireless device over one or more carriers.
  • the access network device and the terminal device are collectively referred to as a wireless device.
  • the access network device 102 is a device deployed in a wireless access network to provide a wireless communication function for a terminal device.
  • the access network device may include various forms of a macro base station (BS), a micro base station (also referred to as a small station), a relay station, or an access point.
  • BS macro base station
  • a micro base station also referred to as a small station
  • a relay station or an access point.
  • the name of a device with radio access capability may be different, for example, in an LTE system, called an evolved Node B (eNB or eNodeB),
  • eNB evolved Node B
  • 3G third generation
  • it Node B
  • it is simply referred to as an access network device, sometimes also referred to as a base station.
  • the wireless device involved in the embodiments of the present invention may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to the wireless modem.
  • the wireless device may be referred to as a terminal device, and may also be referred to as a mobile station (MS), a terminal, a user equipment (UE), or the like.
  • the wireless device may be a subscriber unit, a cellular phone, a smart phone, a wireless data card, a personal digital assistant (PDA) computer, a tablet computer, a modem ( Modem) or modem processor, handheld, laptop computer, netbook, cordless phone or wireless local loop (WLL) station, Bluetooth device , machine type communication (MTC) terminal, etc.
  • PDA personal digital assistant
  • WLL wireless local loop
  • Bluetooth device machine type communication
  • the wireless device can support one or more wireless technologies for wireless communication, such as 5G, LTE, WCDMA, CDMA, 1X, Time Division-Synchronous Code Division Multiple Access (TS-SCDMA), GSM, 802.11 and more.
  • Wireless devices can also support carrier aggregation techniques.
  • Multiple wireless devices can perform the same or different services. For example, mobile broadband services, Enhanced Mobile Broadband (eMBB) services, and Ultra-Reliable and Low-Latency Communication (URLLC) services.
  • eMBB Enhanced Mobile Broadband
  • URLLC Ultra-Reliable and Low-Latency Communication
  • the access network device 102 is capable of performing the method provided by the embodiments of the present invention.
  • the access network device 102 may include a controller or a processor 201 (hereinafter, the processor 201 is taken as an example) and a transceiver 202.
  • Controller/processor 201 is sometimes also referred to as a modem processor.
  • Modem processor 201 can include a baseband processor (BBP) (not shown) that processes the digitized received signal to extract information or data bits conveyed in the signal.
  • BBP baseband processor
  • DSPs digital signal processors
  • ICs integrated circuits
  • the transceiver 202 can be used to support the transmission and reception of information between the access network device 102 and the terminal device, and to support radio communication between the terminal devices.
  • the processor 201 can also be used to perform functions of communication between various terminal devices and other network devices.
  • the uplink signal from the terminal device is received via the antenna, coordinated by the transceiver 202, and further processed by the processor 201 to recover the traffic data and/or signaling information transmitted by the terminal device.
  • the traffic data and/or signaling messages are processed by the terminal device and modulated by the transceiver 202 to generate a downlink signal and transmitted to the UE via the antenna.
  • the access network device 102 can also include a memory 203 that can be used to store program code and/or data for the access network device 102.
  • the transceiver 202 can include separate receiver and transmitter circuits, or the same circuit can implement transceiving functions.
  • the access network device 102 can also include a communication unit 204 for supporting the access network device 102 to communicate with other network entities. For example, it is used to support the access network device 102 to communicate with a network device or the like of the core network.
  • the access network device may further include a bus.
  • the transceiver 202, the memory 203, and the communication unit 204 can be connected to the processor 201 through a bus.
  • the bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus may include an address bus, a data bus, a control bus, and the like.
  • FIG. 3 is a schematic diagram of a possible structure of a terminal device in the above wireless communication system.
  • the terminal device is capable of performing the method provided by the embodiment of the present invention.
  • the terminal device can be any of the two terminal devices 104.
  • the terminal device includes a transceiver 301, an application processor 302, a memory 303, and a modem processor 304.
  • the transceiver 301 can condition (e.g., analog convert, filter, amplify, upconvert, etc.) the output samples and generate an uplink signal that is transmitted via an antenna to the base station described in the above embodiments. On the downlink, the antenna receives the downlink signal transmitted by the access network device. Transceiver 301 can condition (eg, filter, amplify, downconvert, digitize, etc.) the signals received from the antenna and provide input samples.
  • Modem processor 304 also sometimes referred to as a controller or processor, may include a baseband processor (BBP) (not shown) that processes the digitized received signal to extract information conveyed in the signal Or data bits.
  • BBP baseband processor
  • the BBP is typically implemented in one or more numbers within the modem processor 304 or as a separate integrated circuit (IC), as needed or desired.
  • a modem processor 304 may include an encoder 3041, a modulator 3042, a decoder 3043, and a demodulator 3044.
  • the encoder 3041 is for encoding the signal to be transmitted.
  • encoder 3041 can be used to receive traffic data and/or signaling messages to be transmitted on the uplink and to process (eg, format, encode, or interleave, etc.) the traffic data and signaling messages.
  • Modulator 3042 is used to modulate the output signal of encoder 3041.
  • the modulator can perform symbol mapping and/or modulation processing on the encoder's output signals (data and/or signaling) and provide output samples.
  • a demodulator 3044 is used to demodulate the input signal.
  • demodulator 3044 processes the input samples and provides symbol estimates.
  • the decoder 3043 is configured to decode the demodulated input signal.
  • the decoder 3043 deinterleaves, and/or decodes the demodulated input signal and outputs the decoded signal (data and/or signaling).
  • Encoder 3041, modulator 3042, demodulator 3044, and decoder 3043 may be implemented by a composite modem processor 304. These units are processed according to the radio access technology employed by the radio access network.
  • Modem processor 304 receives digitized data representative of voice, data or control information from application processor 302 and processes the digitized data for transmission.
  • the associated modem processor can support one or more of a variety of wireless communication protocols of various communication systems, such as LTE, new air interface, Universal Mobile Telecommunications System (UMTS), high speed packet access (High Speed) Packet Access, HSPA) and more.
  • UMTS Universal Mobile Telecommunications System
  • High Speed Packet Access High Speed Packet Access
  • one or more memories may also be included in the modem processor 304.
  • modem processor 304 and the application processor 302 may be integrated in one processor chip.
  • the memory 303 is used to store program code (sometimes referred to as programs, instructions, software, etc.) and/or data for supporting communication of the terminal device.
  • program code sometimes referred to as programs, instructions, software, etc.
  • the memory 203 or the memory 303 may include one or more storage units, for example, may be a processor 201 for storing program code or a storage unit inside the modem processor 304 or the application processor 302, or may Is an external storage unit separate from the processor 201 or the modem processor 304 or the application processor 302, or may also be a storage unit including the processor 201 or the modem processor 304 or the application processor 302 and with the processor 201 or modem
  • the processor 304 or the application processor 302 is a separate component of an external storage unit.
  • the processor 201 and the modem processor 301 may be the same type of processor or different types of processors. For example, it can be implemented in a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and a field programmable gate array ( Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, other integrated circuit, or any combination thereof.
  • the processor 201 and the modem processor 301 can implement or perform various exemplary logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing function devices, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, or a system-on-a-chip (SOC) or the like.
  • the physical uplink control channel (PUCCH) and the physical uplink shared channel (PUSCH) are both supported for channel estimation based on DRMS.
  • the DMRS corresponding to the PUSCH, on the time domain symbol for transmitting the DMRS, the DMRS is mapped on the equally spaced frequency domain subcarriers, for example, the interval may be 1 subcarrier spacing.
  • the DMRS corresponding to the PUCCH, on the time domain symbol for transmitting the DMRS, is mapped on consecutive frequency domain subcarriers.
  • the embodiment of the present invention further considers the cross-correlation between the transmission signal after the equal interval mapping and the transmission signal of the other sequence using the continuous mapping in the existing sequence.
  • Embodiments of the present invention provide a sequence group including a sequence ⁇ x n ⁇ and a sequence ⁇ y m ⁇ .
  • x n represents an element in the sequence ⁇ x n ⁇ , and x n satisfies
  • u is a non-zero complex number and s n is an element in the sequence ⁇ s n ⁇ .
  • y m represents an element in the sequence ⁇ y m ⁇ .
  • the i is an integer, 0 ⁇ i ⁇ M prime -1, where M prime is the largest prime number less than M.
  • the length of the sequence ⁇ x n ⁇ is N
  • the length of the sequence ⁇ y m ⁇ is M
  • the n and the m are integers
  • 0 ⁇ n ⁇ N-1 where m is an integer. 0 ⁇ m ⁇ M-1.
  • sequence group of this embodiment may further include sequences of other lengths.
  • sequences of integer multiples of 12 may be included, such as a sequence of length 48.
  • the structure of the sequence can refer to the base sequence generation manner of the reference signal sequence of the corresponding length in the LTE system, and details are not described herein again. Therefore, the value of M above may be an integer multiple of 12. Further, M may be a positive integer greater than or equal to 36 and is an integer multiple of 12.
  • M 36, 48, and 60 long sequences ⁇ y m ⁇ .
  • This embodiment of the present invention is not limited thereto.
  • M may be a positive integer greater than or equal to 36 and is an integer multiple of 12.
  • the value of M may also be a value in the first set, and the first set includes some or all of the following integers: 36, 48, 60, 72, 84, 96, 108, 120, 144, 156, 168, 180, 192, 216, 228, 240, 264, 288, 312, 336, 360, 384, 396, 408, 432, 456, 480, 504, 528, 552, 576, 624, 648, 672, 720, 768, 792, 816.
  • M prime is the largest prime number less than M.
  • first sequence and the second sequence may be the same sequence.
  • composition of the sequence ⁇ s n ⁇ can be as shown in Table 1:
  • the first column of Table 1 represents the index of the sequence ⁇ s n ⁇ , and s(0), ..., s(11) represent the elements of the sequence ⁇ s n ⁇ .
  • the first column of Table 2 represents the index of the sequence ⁇ s n ⁇ , and s(0), ..., s(17) represent the elements of the sequence ⁇ s n ⁇ .
  • the first column of Table 3 represents the index of the sequence ⁇ s n ⁇ , and s(0), ..., s(23) represent the elements of the sequence ⁇ s n ⁇ .
  • the i is an integer, 0 ⁇ i ⁇ J prime -1, wherein J prime is the largest prime number smaller than J, and the combination of the sequence ⁇ y m ⁇ and the sequence ⁇ h j ⁇ satisfies
  • the sequence ⁇ x n ⁇ , the sequence ⁇ y m ⁇ , and the sequence ⁇ h j ⁇ are respectively mapped to N, M, J subcarriers, and any two adjacent subcarriers of N, M, and J subcarriers.
  • the center frequency interval is t times the subcarrier spacing
  • the cross-correlation value is calculated by the first cross-correlation value calculation method shown in 3GPP proposal R1-163437:
  • cross-correlation values mentioned in the present invention are all calculated by the above method, and will not be described below.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, selon des modes de réalisation, un procédé de détermination de séquence. Le procédé fournit un groupe de séquences, un numéro de groupe de séquences correspondant à au moins deux séquences. Une séquence est destinée à être utilisée lors du mappage de sous-porteuses consécutives et l'autre séquence est destinée à être utilisée lors du mappage de sous-porteuses équidistantes. Les modes de réalisation de la présente invention garantissent, en ce qui concerne des séquences d'un groupe de séquences, que des corrélations croisées soient aussi élevées que possible pour des signaux de transmission pour lesquels un mappage équidistant est utilisé et des signaux de transmission pour lesquels un mappage consécutif est utilisé d'autres séquences dans le groupe.
PCT/CN2018/096897 2017-11-26 2018-07-24 Procédé et dispositif de détermination de séquence WO2019100739A1 (fr)

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EP20204043.2A EP3855696A1 (fr) 2017-11-26 2018-07-24 Procédé et appareil de détermination de séquence
EP18882146.6A EP3554041B1 (fr) 2017-11-26 2018-07-24 Procédé et dispositif de détermination de séquence
CA3083561A CA3083561C (fr) 2017-11-26 2018-07-24 Procede et dispositif de determination de sequence
JP2020528880A JP7106641B2 (ja) 2017-11-26 2018-07-24 シーケンス決定方法および装置
CN202011101932.7A CN112152770B (zh) 2017-11-26 2018-07-24 一种序列确定方法和装置
BR112020010387-0A BR112020010387B1 (pt) 2017-11-26 2018-07-24 Método de determinação de sequência e aparelho
NZ765368A NZ765368A (en) 2017-11-26 2018-07-24 Method and device for sequence determination
CN201880002134.3A CN110089094B (zh) 2017-11-26 2018-07-24 一种序列确定方法和装置
KR1020207018263A KR102495784B1 (ko) 2017-11-26 2018-07-24 시퀀스 결정 방법 및 장치
PL18882146T PL3554041T3 (pl) 2017-11-26 2018-07-24 Sposób i urządzenie do określania sekwencji
US16/352,475 US10439779B2 (en) 2017-11-26 2019-03-13 Sequence determining method and apparatus
US16/566,207 US10979188B2 (en) 2017-11-26 2019-09-10 Sequence determining method and apparatus
US17/227,077 US11646843B2 (en) 2017-11-26 2021-04-09 Sequence determining method and apparatus
JP2022112484A JP7379604B2 (ja) 2017-11-26 2022-07-13 シーケンス決定方法および装置
US18/183,742 US11902200B2 (en) 2017-11-26 2023-03-14 Sequence determining method and apparatus
US18/487,572 US20240063966A1 (en) 2017-11-26 2023-10-16 Sequence determining method and apparatus

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CN201810150435.2A CN110048821B (zh) 2017-11-26 2018-02-13 一种序列确定方法和装置
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