WO2018126973A1 - 一种信号传输方法、装置及存储介质 - Google Patents

一种信号传输方法、装置及存储介质 Download PDF

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Publication number
WO2018126973A1
WO2018126973A1 PCT/CN2017/119139 CN2017119139W WO2018126973A1 WO 2018126973 A1 WO2018126973 A1 WO 2018126973A1 CN 2017119139 W CN2017119139 W CN 2017119139W WO 2018126973 A1 WO2018126973 A1 WO 2018126973A1
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Prior art keywords
sequence
modulation symbol
carrying
group
symbol
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PCT/CN2017/119139
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English (en)
French (fr)
Inventor
韩祥辉
夏树强
苟伟
张雯
石靖
任敏
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中兴通讯股份有限公司
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Priority claimed from CN201710065929.6A external-priority patent/CN108282435B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP17890245.8A priority Critical patent/EP3567816B1/en
Publication of WO2018126973A1 publication Critical patent/WO2018126973A1/zh

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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
    • H04L27/26136—Pilot sequence conveying additional information
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H04L1/0073—Special arrangements for feedback channel
    • 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
    • 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
    • H04L27/262—Reduction thereof by selection of pilot symbols
    • 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
    • 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
    • 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
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK

Definitions

  • the application is based on a Chinese patent application with an application number of 201710015168.3, an application date of January 6, 2017, and an application number of 201710065929.6, and an application date of February 6, 2017, and requires the priority of the Chinese patent application.
  • the entire contents of the Chinese Patent Application are incorporated herein by reference.
  • the present disclosure relates to wireless communication technologies, and in particular, to a signal transmission method, apparatus, and storage medium.
  • the fifth-generation mobile communication technology will support higher speed (generally Gbps), massive link (1M/km 2 ), ultra-low latency (1ms), higher reliability, 100 times energy efficiency improvement, etc. To support new changes in demand. This means more flexible frame structure support.
  • two types of transmission time slots are initially defined in the 5G standard, one is a downlink-based transmission time unit, and the other is an uplink-based transmission time unit.
  • HARQ Hybrid Automatic Repeat reQuest
  • both transmission time units may contain uplink control symbols.
  • Embodiments of the present disclosure provide a signal transmission method, apparatus, and storage medium.
  • An embodiment of the present disclosure provides a signaling method, including:
  • N is a positive integer
  • the M positions are even sequence point positions of the first sequence, or are odd sequence point positions of the first sequence.
  • the M locations are a subset of all even point locations of the first sequence.
  • the M locations are a subset of all odd point locations of the first sequence.
  • the first sequence is obtained by phase-rotating the second sequence through different frequency domains, and/or the first sequence is obtained by cyclically shifting the second sequence through different timings;
  • the amplitude of the second sequence is a non-zero constant, and the length of the second sequence is N.
  • the second sequence is a Zadoff-Chu sequence, or is obtained by a Zadoff-Chu sequence transformation.
  • the second sequence is obtained by truncating the Zadoff-Chu sequence, or is obtained by cyclic extension of the Zadoff-Chu sequence.
  • the second sequence is a machine selection sequence obtained by quadrature phase shift keying (QPSK) phase modulation.
  • QPSK quadrature phase shift keying
  • the first sequence when the first sequence is obtained by cyclically shifting the second sequence through different timings, the first sequence is included in a sequence set, and the sequence set includes K times by the second sequence through different timings.
  • a sequence obtained by cyclic shift; K is a positive integer, and
  • the sequence set is that the cyclic shift amount of the second sequence is respectively
  • the generated sequence constitutes a subset of the set; ⁇ k is greater than or equal to zero.
  • the sequence set is that the cyclic shift amount of the second sequence is respectively
  • the generated sequence constitutes a subset of the set; ⁇ k is greater than or equal to zero.
  • the K sequences satisfy at least one of the following conditions:
  • Sequences of length N/2 formed by even bits of different sequences are orthogonal to each other;
  • Sequences of length N/2 composed of odd bits of different sequences are orthogonal to each other.
  • N is 12, or 24, or 36.
  • N is 12 or 24.
  • the first modulation symbol is an ACK (ACK) or a NACK (Negative Acknowledgement) message or data information.
  • the first modulation symbol is modulated at M positions of the first sequence, and the first modulation symbol is subjected to binary phase shift keying (BPSK) modulation.
  • BPSK binary phase shift keying
  • the first modulation symbol is modulated at M positions of the first sequence, and the first modulation symbol is a QPSK-modulated ACK or NACK message.
  • the M positions of the first sequence are divided into G groups, each group modulating the same modulation symbol.
  • the M positions of the first sequence are divided into three groups, and each group modulates the same modulation symbol.
  • the three sets of modulation symbols are ⁇ s G1 , s G2 , s G3 ⁇ , where s G1 is a modulation symbol corresponding to the first group position, s G2 is a modulation symbol corresponding to the second group position, and s G3 is a modulation symbol corresponding to the third set of positions;
  • ⁇ s G1 , s G2 , s G3 ⁇ takes values ⁇ 1,1,1 ⁇ , ⁇ j,-1,-j ⁇ , ⁇ -1,1,-1 ⁇ , ⁇ -j,-1,j ⁇ One, or, ⁇ s G1 , s G2 , s G3 ⁇ takes the values ⁇ 1,1,1 ⁇ , ⁇ -1,-1,-1 ⁇ , ⁇ j,j,j ⁇ , ⁇ -j,- One of j, -j ⁇ ; where j is the unit imaginary number.
  • the sequence points are the second group, and the sequence points with the index ⁇ 3, 7, 11 ⁇ in the first sequence are the third group.
  • the first modulation symbol carried by the first sequence is 1, or the G group modulation symbols carried by the first sequence are all 1.
  • the first sequence is a sequence corresponding to the SR.
  • the transmitting by the transmitting symbol, the first sequence carrying the first modulation symbol or transmitting the first sequence carrying the G group modulation, includes:
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbols is mapped and transmitted on N non-contiguous subcarriers in equal intervals in the frequency domain.
  • the first sequence corresponding to each transmission symbol is different.
  • the corresponding first sequence is different for different transmitting ends, or the frequency domain locations mapped by the transmission symbols are different.
  • the method when the first sequence carrying the first modulation symbol or the G group modulation symbol is carried on the transmission symbol, the method further includes:
  • the scrambled first sequence carrying the first modulation symbol or with the G group modulation symbols is transmitted on the transmission symbol.
  • the embodiment of the present disclosure further provides a signal receiving method, including:
  • a first sequence carrying the first modulation symbol Receiving, on the transmission symbol, a first sequence carrying the first modulation symbol; and the first sequence carrying the first modulation symbol is obtained by modulating the first modulation symbol at M positions of the first sequence of length N N is a positive integer; demodulation is performed using sequence points of M positions carrying the first sequence of the first modulation symbol to obtain a first modulation symbol; the first modulation symbol represents a modulated signal; a positive integer less than N; or,
  • the first sequence carrying the G group modulation symbols is to divide the M positions of the first sequence of length N into G groups, and within each group Assuming that the same modulation symbol is modulated; N is a positive integer; G is an integer equal to or greater than 2, and G is equal to or smaller than N; the modulation symbol represents a modulated signal; and the modulation symbol carrying the G group is used
  • the sequence points of the M positions of the first sequence are demodulated to obtain a G group modulation symbol; M is a positive integer smaller than N; or
  • N is a positive integer
  • M is a positive integer less than N
  • G is an integer equal to or greater than 2
  • G is equal to or less than N
  • non-coherent demodulation is performed using all sequence points carrying the first sequence of corresponding modulation symbols , get the corresponding modulation symbol.
  • the method further includes:
  • Channel estimation is performed using sequence points other than the M positions in the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • Demodulation is performed using sequence points of M positions carrying the first modulation symbol or the SR sequence carrying the G group modulation symbols to obtain a first modulation symbol.
  • the receiving, by the transmission symbol, the first sequence carrying the first modulation symbol or carrying the G group modulation symbol includes:
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbol is received on N non-contiguous subcarriers that are equally spaced in the frequency domain.
  • the corresponding first sequence is different for different transmitting ends, or the frequency domain locations mapped by the transmission symbols are different.
  • the method further includes:
  • Cell-level descrambling processing is performed on the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • the embodiment of the present disclosure further provides a signal sending apparatus, including:
  • N is a positive integer
  • a modulating unit configured to modulate the first modulation symbol at each of the M positions of the first sequence, or to divide the M positions of the first sequence into G groups, each of which modulates the same modulation symbol;
  • the first modulation symbol represents a modulated signal;
  • the modulation symbol represents a modulated signal;
  • M is a positive integer less than N;
  • G is an integer equal to or greater than 2, and G is equal to or less than N;
  • a sending unit configured to send, on the transmission symbol, a first sequence that carries the first modulation symbol or carries the G group modulation symbol.
  • the device further includes:
  • the scrambling unit is configured to perform cell level scrambling processing on the first sequence carrying the first modulation symbol or carrying the G group modulation symbol;
  • the sending unit is configured to send, on the transmission symbol, the first sequence that carries the first modulation symbol or carries the G group modulation symbol after being scrambled.
  • the embodiment of the present disclosure further provides a signal receiving apparatus, including:
  • a receiving unit configured to receive, on the transmission symbol, a first sequence carrying the first modulation symbol; the first sequence carrying the first modulation symbol is a first sequence of the first sequence of length N Obtained after modulation symbols; N is a positive integer;
  • a demodulation unit configured to perform demodulation using a sequence of M positions carrying the first sequence of the first modulation symbol to obtain a first modulation symbol; the first modulation symbol represents a modulated signal; a positive integer less than N; or,
  • a receiving unit configured to receive, on the transmission symbol, a first sequence carrying the G group modulation symbols; the first sequence carrying the G group modulation symbols is to divide the M positions of the first sequence of length N into G groups And each group is modulated by the same modulation symbol; N is a positive integer; G is an integer equal to or greater than 2, and G is equal to or smaller than N; the modulation symbol represents the modulated signal;
  • a demodulation unit configured to perform demodulation using a sequence point of M positions carrying the first sequence of the G group modulation symbols to obtain a G group modulation symbol;
  • M is a positive integer smaller than N;
  • a receiving unit configured to receive, on a transmission symbol, a first sequence carrying a first modulation symbol or carrying a G group modulation symbol; the first sequence carrying the first modulation symbol is a first sequence of length N
  • the first sequence is modulated by the first modulation symbol; the first sequence carrying the G group modulation symbols is to divide the M positions into the G group of the first sequence of length N, and the modulation is the same in each group.
  • N is a positive integer
  • M is a positive integer less than N
  • G is an integer equal to or greater than 2
  • G is equal to or less than N;
  • a demodulation unit configured to perform non-coherent demodulation using all sequence points carrying the first sequence of corresponding modulation symbols to obtain corresponding modulation symbols.
  • the device further includes:
  • the channel estimation unit is configured to perform channel estimation by using a sequence point of the first sequence other than the M positions in the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • the device further includes:
  • a descrambling unit configured to perform cell level descrambling processing on the first sequence carrying the first modulation symbol or carrying the G group modulation symbol.
  • Embodiments of the present disclosure also provide a storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of any of the above-described signal transmitting methods, or implements the steps of any of the above-described signal receiving methods.
  • the transmitting end acquires a first sequence of length N; N is a positive integer; and modulates the first modulation symbol at M positions of the first sequence;
  • the first modulation symbol represents a modulated signal; M is a positive integer less than N; the first sequence carrying the first modulation symbol is transmitted on the transmission symbol; or the M positions of the first sequence are divided a group of G, each of which modulates the same modulation symbol; the modulation symbol characterizes the modulated signal; G is an integer equal to or greater than 2, and G is equal to or less than N;
  • the transmission carries the G on the transmission symbol a first sequence of modulation symbols; and the receiving end receives a first sequence carrying the first modulation symbol or carrying the G group modulation symbols on the transmission symbol; using the M of the first sequence carrying the corresponding modulation symbol
  • the sequence points of the positions are demodulated, or all the sequence points carrying the first sequence of the corresponding modulation symbols are used for non-coherent demodulation to obtain
  • FIG. 1 is a schematic flow chart of a method for signaling according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flow chart of a method for receiving a signal according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flow chart of a method for signal transmission according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a user terminal transmitting an SR and an ACK/NACK message simultaneously in one symbol according to Embodiment 5 of the present disclosure
  • FIG. 8 is a schematic diagram of a user terminal mapping a predefined sequence to a frequency domain equally spaced subcarrier on one symbol according to Embodiment 7 of the present disclosure
  • FIG. 10 is a schematic diagram of a user terminal modulating data in three sets of positions of a predefined sequence on one symbol according to Embodiment 9 of the present disclosure
  • FIG. 11 is a schematic structural diagram of a signal transmitting apparatus according to Embodiment 11 of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a signal receiving apparatus according to Embodiment 11 of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a signal transmission system according to Embodiment 11 of the present disclosure.
  • the uplink control symbols may occupy only one or two Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier-Frequency Division Multiplexing Access (SC-FDMA) symbols. Therefore, in this case, the performance of the Physical Uplink Control Channel (PUCCH) may become a bottleneck of cell coverage. To this end, the uplink single carrier characteristics should be maintained as much as possible to support higher coverage.
  • the PUCCH occupies only one symbol, how to transmit the reference signal (RS, Reference Signal) and data (PUCCH) on one symbol and keep the lower peak-to-average ratio becomes a problem.
  • the PUCCH can be used to send an ACK message, a NACK message, and an SR.
  • the PUCCH Format 1/1a/1b when the ACK/NACK message and the SR are simultaneously transmitted, the ACK/NACK message can be transmitted by using the channel resource of the SR, which better solves the problem of multiplexing between the two.
  • the channel structure designed by the 5G system should also solve the problem of ACK/NCK message and SR multiplexing efficiently.
  • the transmitting end acquires a first sequence of length N; N is a positive integer; and modulates the first modulation symbol at M positions of the first sequence; a modulation symbol characterizing the modulated signal; M is a positive integer less than N; transmitting a first sequence carrying the first modulation symbol on a transmission symbol; or dividing the M positions of the first sequence into G a group, each group modulating the same modulation symbol; the modulation symbol characterizing the modulated signal; G being an integer equal to or greater than 2, and G being equal to or less than N; transmitting on the transmission symbol carrying the G group modulation a first sequence of symbols; and the receiving end receives the first sequence carrying the corresponding modulation symbols on the transmission symbols; demodulating using the sequence points of the M positions carrying the first sequence of the corresponding modulation symbols, or carrying All sequence points of the first sequence with corresponding modulation symbols are non-coherently demodulated to obtain corresponding modulation symbols.
  • the method for signaling in the embodiment of the present disclosure is applied to a user terminal. As shown in FIG. 1 , the method includes the following steps:
  • Step 101 Acquire a first sequence of length N;
  • N is a positive integer.
  • the first sequence is a predefined sequence. That is to say, the user terminal has previously learned the first sequence.
  • the first sequence may be obtained by phase rotation of the second sequence through different frequency domains, and/or the first sequence is obtained by cyclically shifting the second sequence through different timings;
  • the second sequence may be a sequence having an amplitude of a non-zero constant and a length of N.
  • the second sequence may be a Zadoff-Chu sequence or may be obtained by a Zadoff-Chu sequence transformation.
  • the second sequence is obtained by a Zadoff-Chu sequence transformation. Specifically, the second sequence is obtained by truncating a Zadoff-Chu sequence, or is obtained by cyclic extension of a Zadoff-Chu sequence.
  • N is 12, or 24, or 36.
  • the second sequence may also be an optional sequence obtained by QPSK phase modulation.
  • N can be 12 or 24.
  • the first sequence is obtained by cyclic shifting of the second sequence by different timings
  • the first sequence is included in a sequence set, and the sequence set includes K blocks that are cyclically shifted by the second sequence by different timings.
  • the resulting sequence; K is a positive integer, and
  • the sequence set is that the cyclic shift amount of the second sequence is respectively
  • the generated sequence constitutes a subset of the set.
  • the sequence set is that the cyclic shift amount of the second sequence is respectively
  • the generated sequence constitutes a subset of the set.
  • ⁇ k is greater than or equal to another integer. Indicates rounding up.
  • the K sequences satisfy at least one of the following conditions:
  • Sequences of length N/2 formed by even bits of different sequences are orthogonal to each other;
  • Sequences of length N/2 composed of odd bits of different sequences are orthogonal to each other.
  • N may be 12, 24, or 36.
  • Step 102 Modulate the first modulation symbol at each of the M positions of the first sequence, or modulate the same modulation symbol in each group of the G groups divided into M positions;
  • the first modulation symbol represents a modulated signal.
  • M is a positive integer less than N.
  • the transmitting end divides the M positions of the first sequence into G groups, and each group modulates the same modulation symbol.
  • the modulation symbol represents a modulated signal
  • G is an integer equal to or greater than 2
  • G is equal to or smaller than N.
  • the M locations are predefined, that is, the user terminal implements the specific location of the M locations.
  • the M positions may be even sequence point positions of the first sequence, or may be odd sequence point positions of the first sequence.
  • the M positions when the M positions are the even sequence point positions of the first sequence, the M positions may specifically be a subset of all even point positions of the first sequence.
  • the M locations may specifically be a subset of all odd point locations of the first sequence.
  • the signal may be an uplink control signal, such as an ACK or NACK message.
  • the first modulation symbol can be a modulated ACK or NACK message or data information.
  • the first modulation symbol is modulated by the BPSK-modulated ACK or NACK message when the 1-bit ACK or NACK message is sent.
  • the first modulation symbol is modulated at M positions of the first sequence, and the first modulation symbol is a QPSK-modulated ACK or NACK message.
  • the uplink refers to a direction in which a user terminal sends information to a base station.
  • the M positions of the first sequence are divided into G groups, each group modulating the same modulation symbol.
  • the M positions of the first sequence are divided into three groups, each of which modulates the same modulation symbol.
  • the three sets of modulation symbols are defined as ⁇ s G1 , s G2 , s G3 ⁇ , where s G1 is the modulation symbol corresponding to the first group position, s G2 is the modulation symbol corresponding to the second group position, and s G3 is the third group The modulation symbol corresponding to the position;
  • ⁇ s G1 , s G2 , s G3 ⁇ takes values ⁇ 1,1,1 ⁇ , ⁇ j,-1,-j ⁇ , ⁇ -1,1,-1 ⁇ , ⁇ -j,-1,j ⁇ One, or, ⁇ s G1 , s G2 , s G3 ⁇ takes the values ⁇ 1,1,1 ⁇ , ⁇ -1,-1,-1 ⁇ , ⁇ j,j,j ⁇ , ⁇ -j,- One of j, -j ⁇ .
  • the sequence point of ⁇ is set to the second group, and the sequence points whose index is ⁇ 3, 7, 11 ⁇ in the first sequence are set to the third group.
  • the time-domain cyclic shift amounts of the two first sequences differing by N/2.
  • the first modulation symbol carried by the first sequence is 1, or the G group modulation symbols carried by the first sequence are all 1.
  • the first sequence is a sequence corresponding to the SR, that is, an SR sequence.
  • the SR sequence refers to a sequence that has been carried with an SR.
  • Step 103 Send a first sequence carrying the corresponding modulation symbol on the transmission symbol.
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbol is mapped and transmitted on N consecutive subcarriers in the frequency domain; or, the first modulation symbol or The first sequence map carrying the G sets of modulation symbols is transmitted on N non-contiguous subcarriers of equal frequency in the frequency domain.
  • Transmitting by using the first modulation symbol or the first sequence carrying the G group modulation symbols, on N non-contiguous subcarriers that are equally spaced in the frequency domain, may be used in an unmapped frequency domain location ( On the subcarriers, a sounding reference signal (SRS) is transmitted.
  • SRS sounding reference signal
  • the number of the transmission symbols may be at least two;
  • a first sequence carrying the first modulation symbol is transmitted on each transmission symbol.
  • the first sequence corresponding to each transmission symbol is different.
  • the frequency domain positions mapped by different transmission symbols are different, and thus, the frequency division gain can be obtained.
  • the corresponding first sequence is different, or the frequency domain locations mapped by the transmission symbols are different, so that interference between different user terminals in the network cell can be avoided.
  • different first sequences may be used between different network cells, or cell-level scrambling may be performed when different network cells transmit signals.
  • the method when the first sequence carrying the first modulation symbol or carrying the G group modulation symbol is transmitted on the transmission symbol, the method further includes:
  • a first sequence carrying the first modulation symbol or carrying the G group modulation symbol after scrambling is transmitted on the transmission symbol.
  • the cell-level scrambling process may be performed on the first sequence carrying the first modulation symbol or carrying the G group modulation symbols by using a cell-specific scrambling code sequence.
  • an embodiment of the present disclosure further provides a signal receiving method, which is applied to a base station. As shown in FIG. 2, the method includes the following steps:
  • Step 201 Receive, on a transmission symbol, a first sequence that carries the first modulation symbol or carries the G group modulation symbol.
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbol is received on N consecutive subcarriers in the frequency domain; or N non-contiguous subcarriers equally spaced in the frequency domain And receiving a first sequence carrying the first modulation symbol or carrying the G group modulation symbol.
  • Step 202 Perform demodulation by using sequence points of M positions carrying the first modulation symbol or the first sequence carrying the G group modulation symbols, or perform non-coherent demodulation by using all sequence points to obtain corresponding modulation symbols. .
  • the receiving end receives the first sequence carrying the first modulation symbol on the transmission symbol; the first sequence carrying the first modulation symbol is the first sequence of length N Obtaining the first modulation symbol after the M positions are modulated; demodulating by using the sequence points of the M positions carrying the first sequence of the first modulation symbol to obtain the first modulation symbol.
  • the receiving end receives the first sequence carrying the G group modulation symbols on the transmission symbol; the first sequence carrying the G group modulation symbols is to divide the M positions of the first sequence of length N into G groups. And obtaining the same modulation symbol in each group; demodulating by using the sequence points of the M positions carrying the first sequence of the G group modulation symbols to obtain G group modulation symbols.
  • all the sequence points carrying the first sequence of the corresponding modulation symbol may also be used for non-coherence Demodulation, the corresponding modulation symbols are obtained.
  • the method may further include:
  • Channel estimation is performed using sequence points other than the M positions in the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • the method may further include:
  • Cell-level descrambling processing is performed on the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • the cell-level descrambling process may be performed on the first sequence carrying the first modulation symbol or carrying the G group modulation symbol by using a cell-specific scrambling code sequence.
  • the sequence points of the M positions carrying the first modulation symbol or the SR sequence carrying the G group modulation symbols are used. Demodulation is performed to obtain corresponding modulation symbols.
  • the corresponding first sequence is different, or the frequency domain locations mapped by the transmission symbols are different.
  • an embodiment of the present disclosure further provides a signal transmission method, as shown in FIG. 3, the method includes:
  • Step 301 The sender acquires a first sequence of length N.
  • N is a positive integer.
  • Step 302 The transmitting end modulates the first modulation symbol or M positions in the M positions of the first sequence to modulate the same modulation symbol in each group.
  • the first modulation symbol represents a modulated signal
  • M is a positive integer less than N.
  • the modulation symbol characterizes the modulated signal; G is an integer equal to or greater than 2, and G is equal to or less than N.
  • Step 303 The transmitting end sends a first sequence carrying a corresponding modulation symbol on the transmission symbol.
  • Step 304 The receiving end receives the first sequence carrying the corresponding modulation symbol on the transmission symbol.
  • Step 305 The receiving end performs demodulation by using sequence points of M positions of the first sequence carrying the corresponding modulation symbols or non-coherent demodulation by using all sequence points to obtain corresponding modulation symbols.
  • the transmitting end acquires a first sequence of length N; N is a positive integer; and modulates the first modulation symbol at M positions of the first sequence; the first modulation symbol Characterizing the modulated signal; M is a positive integer less than N; transmitting a first sequence carrying the first modulation symbol on a transmission symbol; or dividing the M positions of the first sequence into G groups, each Each of the groups modulates the same modulation symbol; the modulation symbol characterizes the modulated signal; G is an integer equal to or greater than 2, and G is equal to or less than N; and transmits a signal carrying the G group modulation symbol on the transmission symbol a sequence; the receiving end receives a first sequence carrying the corresponding modulation symbols on the transmission symbols; demodulating using the sequence points of the M positions carrying the first sequence of the corresponding modulation symbols, or carrying the corresponding modulation All sequence points of the first sequence of symbols are non-coherently demodulated to obtain corresponding modulation symbols, and partial sequence points in the first sequence
  • the value of N can be relatively large, so that inter-cell interference can be made lower.
  • the first sequence is a sequence corresponding to the SR, that is, an SR sequence. In this way, multiplexing of ACK/NACK messages and SRs can be achieved.
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • the modulated ACK/NACK message S k is obtained , and then S k is multiplied by the odd bit of the predefined sequence W(n). That is, S k is modulated in the odd bits of the predefined sequence W(n), and the remaining sequence points remain unchanged, that is, the sequence points of the even bits remain unchanged, and then mapped to 12 consecutive subcarriers in the frequency domain for transmission.
  • the machine selection sequence of the QPSK can be expressed in the frequency domain as 0 ⁇ n ⁇ N, where, Can take values in 1, -1, 3, -3. Different base sequences The values are different.
  • the phase deflection sequence in the frequency domain can be expressed as: among them Indicates the amount of phase rotation, and ⁇ can be defined as the amount of cyclic shift in the time domain.
  • the sequence selected at this time can satisfy at least one of the following conditions:
  • Predefined sequences of different user terminals are orthogonal to each other;
  • Sequences of length 6 formed by even bits of a predefined sequence of different user terminals are orthogonal to each other;
  • Sequences of length 6 formed by odd bits of a predefined sequence of different user terminals are orthogonal to each other.
  • the even-numbered bits in the sequence can be used for channel estimation according to the local sequence, and then the valid data of the odd-numbered bits are demodulated.
  • Different user terminals are distinguished by different predefined sequences.
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • the modulated ACK/NACK message S k is obtained , and then S k is multiplied by the even bit of the predefined sequence W(n). That is, S k is modulated in even bits of the predefined sequence W(n), and the remaining sequence points remain unchanged, that is, the sequence points of the odd bits remain unchanged, and then mapped to 24 consecutive subcarriers in the frequency domain for transmission.
  • the Zadoff-Chu sequence can be expressed in the frequency domain as 0 ⁇ n ⁇ N, where q is the base sequence index and is relatively prime to the length N.
  • the phase deflection sequence in the frequency domain can be expressed as: among them Indicates the amount of phase rotation, and ⁇ can be defined as the amount of cyclic shift in the time domain.
  • the selected predefined sequence meets at least one of the following conditions:
  • Predefined sequences of different user terminals are orthogonal to each other;
  • Sequences of length 12 formed by even bits of a predefined sequence of different user terminals are orthogonal to each other;
  • Sequences of length 12 consisting of odd bits of a predefined sequence of different user terminals are orthogonal to each other.
  • the predefined sequence still maintains a good peak-to-average ratio in the time domain after superimposing the row control information at predetermined positions.
  • the odd-numbered bits (characterized reference signals) in the sequence can be used for channel estimation according to the local sequence, and then the effective data of the even-numbered bits is demodulated.
  • Different user terminals are distinguished by different predefined sequences.
  • this embodiment describes the predefined sequence in detail.
  • the predefined sequence length N is greater than 24.
  • predefined sequence can be generated by the even length ZC sequence as described in the third embodiment.
  • It can also be generated by truncating an odd-length ZC sequence, or by cyclically spreading an odd-length ZC sequence.
  • odd-length ZC sequence can be expressed in the frequency domain as Where q is the base sequence index and is relatively prime to the length X.
  • phase deflection sequence in the frequency domain can be expressed as: among them
  • ⁇ can be defined as the amount of cyclic shift in the time domain.
  • the 18 predefined sequences satisfy at least one of the following conditions:
  • Predefined sequences of different user terminals are orthogonal to each other;
  • Sequences of length 18 formed by even bits of a predefined sequence of different user terminals are orthogonal to each other;
  • Sequences of length 18 formed by odd bits of a predefined sequence of different user terminals are orthogonal to each other.
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • FIG. 6 is a schematic diagram of a user terminal transmitting an SR and an ACK/NACK message simultaneously with one symbol.
  • W(n) is a predefined sequence for transmitting an ACK/NACK message assigned to the user terminal
  • WSR (n) is a predefined sequence for transmitting the SR assigned to the user terminal.
  • the ACK/NACK message pre-defined sequence is defined as W SR (n).
  • W SR (n) carries the SR.
  • the modulated ACK/NACK (Control Information) message is BPSK or QPSK modulated
  • the selected sequence of the QPSK that sends the ACK/NACK message can be expressed in the frequency domain as 0 ⁇ n ⁇ N, where It can take values in 1, -1, 3, -3. Different base sequences The values are different.
  • the phase deflection sequence in the frequency domain can be expressed as: among them
  • ⁇ can be defined as the amount of cyclic shift in the time domain.
  • the receiving end After the pre-defined sequence is issued, for the receiving end, the receiving end performs the detection of the SR and the detection of the ACK/NACK message by using the local sequence W SR (n) (demodulating the effective data of the even bits). Different user terminals are distinguished by different predefined sequences. Of course, the receiving end can utilize the odd bits in the sequence (characterizing the reference signal) for channel estimation.
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • the modulated ACK/NACK message S k is obtained , and then S k is multiplied by the predefined sequence W 1 (n), W 2 .
  • the even bits of (n), that is, the even bits of the predefined sequences W 1 (n) and W 2 (n) are modulated by S k , and the remaining sequence points remain unchanged, that is, the sequence points of the odd bits remain unchanged, and then map Transmitted on 24 consecutive subcarriers in the frequency domain.
  • the subcarrier positions mapped on each symbol are in different frequency domain positions, and thus, it is advantageous to obtain the frequency division gain.
  • odd subcarriers (characterized reference signals) on each symbol can be utilized for channel estimation according to the local sequence, and then the effective data of the even bits is demodulated.
  • Different user terminals are distinguished by different predefined sequences.
  • two symbols may be two independent symbols, and two symbols may also be two symbols obtained by splitting one symbol, and the split refers to obtaining shorter time domain symbols by using a larger subcarrier spacing. .
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • FIG. 8 is a schematic diagram of a user terminal mapping a predefined sequence to a frequency domain equally spaced subcarrier on one symbol.
  • the modulated ACK/NACK message (control information) is BPSK or QPSK modulated
  • the modulated ACK/NACK message S k is obtained , and then S k is multiplied by the odd bit of the predefined sequence W(n). That is, the odd bits of the predefined sequence W(n) are modulated by S k , and the remaining sequence points remain unchanged, that is, the sequence points of the even bits remain unchanged, and then mapped to 12 subcarriers equally spaced in the frequency domain for transmission.
  • the mapping structure facilitates sending SRS in unmapped frequency domain locations.
  • this embodiment describes in detail the manner in which the reference signals and data are transmitted.
  • the four predetermined positions are the first, fourth, seventh, and ten sequence points of the predefined sequence.
  • the modulated ACK/NACK message S k is obtained , and then S k is multiplied by the first in the predefined sequence W(n). , 4, 7, 10 sequence points, that is, S k is modulated at the 1st, 4th, 7th, and 10th sequence points of the predefined sequence W(n), and the remaining sequence points remain unchanged, and then mapped to the frequency domain 12 Transmitted on consecutive subcarriers.
  • the channel estimation can be performed by using the sequence point positions 0, 2, 3, 5, 6, 8, 9, 11 according to the local sequence, and then demodulating the first, fourth, seventh, and ten sequence points. Modulated data.
  • Different user terminals are distinguished by different predefined sequences.
  • the sequences of the first, fourth, seventh, and ten sequence points of the predefined sequence of different user terminals are orthogonal to each other, and the 0, 2, 3, 5, 6, 8, 9, 11 of the predefined sequence of different user terminals
  • the sequences formed by the sequence points are orthogonal to each other.
  • each set of points is modulated with the same modulation symbol.
  • the corresponding modulation symbols of each group are s k1 , s k2 , s k3 .
  • the set ⁇ s k1 , s k2 , s k3 ⁇ is defined, and the set values are determined according to the four possibilities of the 2-bit information, namely 00, 01, 10, 11.
  • ⁇ s k1 , s k2 , s k3 ⁇ are ⁇ 1,1,1 ⁇ , ⁇ j,-1,-j ⁇ , ⁇ -1,1,-1 ⁇ , ⁇ -j,-1,j ⁇
  • ⁇ s k1 , s k2 , s k3 ⁇ is ⁇ 1, 1, 1 ⁇ .
  • Different user terminals use different cyclic shift sequences of the same base sequence, and preferably, the difference in cyclic shift amounts of different user terminals is A, where A mod 3 is 1 or 2.
  • sequences of sequence points ⁇ 1, 2, 3, 5, 6, 7, 9, 10, 11 ⁇ of different user terminals are orthogonal to each other, and sequences constituted by ⁇ 0, 4, 8 ⁇ are orthogonal to each other.
  • decoupling can be performed using coherent detection. Specifically, channel estimation is performed using the positions of the sequence points 0, 4, and 8 in the figure, and then the three sets of sequence points are demodulated. Or, because the sequences used by different user terminals are orthogonal to each other and modulated by the modulation symbols, the receiving end user can judge by using the peak according to the non-coherent detection.
  • the receiving end can select the receiving end detection method according to the channel condition, such as coherent detection when the high signal to noise ratio is used, non-coherent detection when the low signal to noise ratio is used, or coherent and non-coherent joint detection.
  • This embodiment provides a transmission method when the base station predefines a plurality of first sequences for each user terminal.
  • the receiving end user can judge by the peak according to the non-coherent detection, or realize the coherent detection by performing channel estimation on the partial sequence point position.
  • the first modulation symbol or the G group modulation symbol described in the embodiment of the present disclosure is 1.
  • the embodiment provides a signal sending device, which can be disposed in a user terminal. As shown in FIG. 11, the device includes:
  • the obtaining unit 111 is configured to acquire a first sequence of length N; N is a positive integer;
  • the modulating unit 112 is configured to modulate the first modulation symbol at M positions of the first sequence, or divide the M positions of the first sequence into G groups, each of which modulates the same modulation symbol;
  • the first modulation symbol represents a modulated signal;
  • the modulation symbol represents a modulated signal;
  • M is a positive integer less than N;
  • G is an integer equal to or greater than 2, and G is equal to or less than N;
  • the sending unit 113 is configured to send, on the transmission symbol, a first sequence carrying the first modulation symbol or carrying the G group modulation symbol.
  • the obtaining unit 111 is specifically configured to:
  • the sequence corresponding to the SR is taken as the first sequence. That is, the SR sequence serves as the first sequence.
  • the sending unit 113 is specifically configured to:
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbols is mapped and transmitted on N non-contiguous subcarriers in equal intervals in the frequency domain.
  • the apparatus may further include:
  • the scrambling unit is configured to perform cell level scrambling processing on the first sequence carrying the first modulation symbol or carrying the G group modulation symbol;
  • the sending unit 113 is configured to send, on the transmission symbol, the first sequence that carries the first modulation symbol or carries the G group modulation symbol after being scrambled.
  • the obtaining unit 111, the modulating unit 112, and the scrambling unit may be processed by a processor in a signal transmitting device (such as a central processing unit (CPU), a microprocessor (MCU), and digital signal processing.
  • a processor in a signal transmitting device
  • a signal transmitting device such as a central processing unit (CPU), a microprocessor (MCU), and digital signal processing.
  • the DSP Digital Signal Processor
  • FPGA Field-Programmable Gate Array
  • the transmitting unit 113 can be implemented by a transceiver in the signal transmitting device.
  • the embodiment further provides a signal receiving device, which can be disposed at a base station.
  • the device includes:
  • the receiving unit 121 is configured to receive, on the transmission symbol, a first sequence carrying the first modulation symbol; and the first sequence carrying the first modulation symbol is a M sequence of the first sequence of length N Obtained after modulating the first modulation symbol; N is a positive integer;
  • the demodulation unit 122 is configured to perform demodulation by using sequence points of M positions of the first sequence carrying the first modulation symbol to obtain a first modulation symbol; the first modulation symbol represents a modulated signal; Is a positive integer less than N.
  • the receiving unit 121 is configured to receive, on the transmission symbol, a first sequence carrying the G group modulation symbols; and the first sequence carrying the G group modulation symbols is to divide the M positions of the first sequence of length N into A group of G groups, each of which is modulated by the same modulation symbol; N is a positive integer; G is an integer equal to or greater than 2, and G is equal to or smaller than N; the modulation symbol represents a modulated signal;
  • the demodulation unit 122 is configured to perform demodulation using a sequence of M positions carrying the first sequence of the G group modulation symbols to obtain a G group modulation symbol; M is a positive integer smaller than N.
  • the receiving unit 121 is configured to receive, on the transmission symbol, a first sequence carrying the first modulation symbol or carrying the G group modulation symbol; the first sequence carrying the first modulation symbol is a length N
  • the first sequence of M bits of the first sequence is modulated by the first modulation symbol; the first sequence carrying the G group of modulation symbols is divided into M groups of the first sequence of length N, and each group Having the same modulation symbol internally;
  • N is a positive integer;
  • M is a positive integer less than N;
  • G is an integer equal to or greater than 2, and G is equal to or less than N;
  • the demodulation unit 122 is configured to perform non-coherent demodulation using all sequence points carrying the first sequence of corresponding modulation symbols to obtain corresponding modulation symbols.
  • the device may further comprise:
  • the channel estimation unit 123 is configured to perform channel estimation by using sequence points of the first sequence other than the M positions in the first sequence carrying the first modulation symbol or carrying the G group modulation symbols.
  • the demodulation unit 122 is specifically configured as follows:
  • the sequence points of the M positions carrying the first modulation symbol or the SR sequence carrying the G group modulation symbols are used for demodulation.
  • the receiving unit 121 is specifically configured to:
  • the first sequence carrying the first modulation symbol or carrying the G group modulation symbol is received on N non-contiguous subcarriers that are equally spaced in the frequency domain.
  • the apparatus may further include:
  • a descrambling unit configured to perform cell level descrambling processing on the first sequence carrying the first modulation symbol or carrying the G group modulation symbol.
  • the receiving unit 121 may be implemented by a transceiver in a signal receiving device, and the demodulating unit 122, the channel estimating unit 123, and the descrambling unit may be implemented by a processor (such as a CPU, an MCU, a DSP, or a DSP) in the signal receiving device. FPGA, etc.) implementation.
  • a processor such as a CPU, an MCU, a DSP, or a DSP
  • the embodiment further provides a signal transmission system.
  • the system includes:
  • the transmitting end 131 is configured to acquire a first sequence of length N; where N is a positive integer; and the first modulation symbol or the M positions are grouped into the G group at the M positions of the first sequence. Each group is modulated with the same modulation symbol; the corresponding modulation symbol characterizes the modulated signal; M is a positive integer less than N; G is an integer equal to or greater than 2, and G is equal to or less than N; and is carried on the transmitted symbol Having the first sequence of the respective modulation symbols;
  • the receiving end 132 is configured to receive, on the transmission symbol, a first sequence carrying the corresponding modulation symbol; demodulate or use all sequence points by using sequence points of the M positions carrying the first sequence of the corresponding modulation symbol Non-coherent demodulation is performed to obtain corresponding modulation symbols.
  • the transmitting end 131 may be a user terminal, and correspondingly, the receiving end 132 may be a base station.
  • embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • an embodiment of the present disclosure further provides a storage medium, particularly a computer readable storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the steps of any of the foregoing signal sending methods are implemented, or The steps of implementing any of the above signal receiving methods.
  • the transmitting end acquires a first sequence of length N; N is a positive integer; and modulates the first modulation symbol at M positions of the first sequence; the first modulation symbol represents modulation a subsequent signal; M is a positive integer less than N; transmitting a first sequence carrying the first modulation symbol on a transmission symbol; or dividing the M positions of the first sequence into G groups, within each group Equivalently modulating the same modulation symbol; the modulation symbol characterizes the modulated signal; G is an integer equal to or greater than 2, and G is equal to or less than N; transmitting a first sequence carrying the G-group modulation symbols on the transmission symbol And the receiving end receives the first sequence carrying the first modulation symbol or carrying the G group modulation symbol on the transmission symbol; and using the sequence point of the M positions carrying the first sequence of the corresponding modulation symbol Tuning, or using all sequence points carrying the first sequence of corresponding modulation symbols for non-coherent demodulation to obtain corresponding modulation symbols, using partial sequence points

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Abstract

本公开公开了一种信号发送方法，包括：获取长度为N的第一序列；N为正整数；在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列。本公开同时还公开了一种信号接收方法、信号发送装置、信号接收装置及存储介质。

Description

一种信号传输方法、装置及存储介质
相关申请的交叉引用
本申请基于申请号为201710015168.3、申请日为2017年01月06日、以及申请号为201710065929.6、申请日为2017年02月06日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及无线通信技术，尤其涉及一种信号传输方法、装置及存储介质。
背景技术
第五代移动通信技术(5G)将支持更高速率(一般为Gbps)、巨量链接(1M/km 2)、超低时延(1ms)、更高的可靠性、百倍的能量效率提升等以支撑新的需求变化。这意味着需要更为灵活的帧结构支撑。当前在5G的标准中初步定义了两种传输时间单元(slot)，一种为下行为主的传输时间单元，一种为上行为主的传输时间单元。为了更快地进行下行混合自动重传请求(HARQ，Hybrid Automatic Repeat reQuest)，必要时实现自包含反馈，所以两种传输时间单元中都可能含有上行控制符号。
在5G系统中，如何在保证较低峰均比的基础上同时发送导频信号和数据是目前亟待解决的问题。
发明内容
本公开实施例提供一种信号传输方法、装置及存储介质。
本公开实施例提供了一种信号发送方法，包括：
获取长度为N的第一序列；N为正整数；
在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列。
上述方案中，所述M个位置为所述第一序列的偶数序列点位置，或为所述第一序列的奇数序列点位置。
上述方案中，所述M个位置为所述第一序列的所有偶数点位置的子集。
上述方案中，所述M个位置为所述第一序列的所有奇数点位置的子集。
上述方案中，所述第一序列为第二序列经过不同频域相位旋转得到的，和/或所述第一序列为第二序列经过不同时序循环移位得到的；其中，
所述第二序列的幅值为非零常数，且所述第二序列的长度为N。
上述方案中，所述第二序列为Zadoff-Chu序列，或者由Zadoff-Chu序列变换得到。
上述方案中，所述第二序列由Zadoff-Chu序列截短获得，或者由Zadoff-Chu序列循环扩展获得。
上述方案中，所述第二序列为由正交相移键控(QPSK)相位调制获得的机选序列。
上述方案中，所述第一序列由第二序列经过不同时序循环移位得到时，所述第一序列包含在序列集合中，所述序列集合中包含K个由所述第二序列经过不同时序循环移位得到的序列；K为正整数，且
Figure PCTCN2017119139-appb-000001
上述方案中，当N为偶数时，所述序列集合为所述第二序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000002
所生成序列构成集合的子集；α k大于等于零的整数。
上述方案中，当N为奇数时，所述序列集合为所述第二序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000003
所生成序列构成集合的子集；α k大 于等于零的整数。
上述方案中，当N为偶数时，K个序列满足以下条件至少之一：
不同序列相互正交；
不同序列的偶数位构成的长度为N/2的序列相互正交；
不同序列的奇数位构成的长度为N/2的序列相互正交。
上述方案中，所述第二序列为Zadoff-Chu序列时，N为12、或为24、或为36。
上述方案中，N为12、或为24。
上述方案中，所述第一调制符号为调制的确认(ACK，ACKnowledgement)或非确认(NACK，Negative Acknowledgement)消息或数据信息。
上述方案中，当发送1比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过二进制相移键控(BPSK)调制后的ACK或NACK消息。
上述方案中，当发送2比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过QPSK调制后的ACK或NACK消息。
当发送大于或者等于2比特消息时，将所述第一序列的M个位置分为G组，每组均调制相同的调制符号。
上述方案中，当发送2比特的消息时，将所述第一序列的M个位置分为三组，每组均调制相同的调制符号。
上述方案中，所述三组调制符号为{s G1,s G2,s G3}，其中s G1为第一组位置对应的调制符号，s G2为第二组位置对应的调制符号，s G3为第三组位置对应的调制符号；
{s G1,s G2,s G3}取值为{1,1,1}，{j,-1,-j}，{-1,1,-1}，{-j,-1,j}之一，或者，{s G1,s G2,s G3}取值为{1,1,1}，{-1,-1,-1}，{j,j,j}，{-j,-j,-j}之一；其中，j表示单位虚数。
上述方案中，N＝12，M＝9，所述第一序列中索引为{1,5,9}的序列点为第一组，所述第一序列中索引为{2,6,10}的序列点为第二组，所述第一序列中索引为{3,7,11}的序列点为第三组。
上述方案中，当发送1比特消息时，确定两个第一序列，所述两个第一序列的时域循环移位量相差N/2。
上述方案中，当发送2比特消息时，确定四个第一序列，四个第一序列中任意两个序列的时域循环移位量的差值为N/4的整数倍。
上述方案中，所述第一序列携带的第一调制符号为1，或者所述第一序列携带的G组调制符号均为1。
上述方案中，当同时发送调度请求(SR，Scheduling Request)与ACK消息或同时发送SR和NACK消息时，所述第一序列为所述SR对应的序列。
上述方案中，所述在传输符号上发送携带有所述第一调制符号的第一序列或者发送携带有所述G组调制的第一序列，包括：
将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域的N个连续子载波上发送；
或者，
将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域等间隔的N个非连续子载波上发送。
上述方案中，当所述传输符号的个数为至少两个时，在每个传输符号上均发送携带有所述第一调制符号的第一序列。
上述方案中，每个传输符号对应的第一序列不同。
上述方案中，不同传输符号所映射的频域位置不同。
上述方案中，针对不同的发送端，对应的第一序列不同，或者传输符号所映射的频域位置不同。
上述方案中，在传输符号上发送携带有所述第一调制符号或者携带有所述G组调制符号的第一序列时，所述方法还包括：
对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列 进行小区级加扰处理；
相应地，在所述传输符号上发送加扰后的携带有所述第一调制符号或者带有所述G组调制符号的第一序列。
本公开实施例还提供了一种信号接收方法，包括：
在传输符号上接收携带有第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；N为正整数；利用携带有所述第一调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；或者，
在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；N为正整数；G为等于或者大于2的整数，且G等于或者小于N；所述调制符号表征调制后的信号；利用携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到G组调制符号；M为小于N的正整数；或者，
在传输符号上接收携带有第一调制符号或者携带有所述G组调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分成G组，且每组内均调制相同调制符号后得到的；N为正整数；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
上述方案中，所述方法还包括；
利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
上述方案中，当同时发送SR与ACK消息或同时发送SR和NACK消息时，所述利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号包括：
利用携带有所述第一调制符号或者携带有所述G组调制符号的SR序列的M个位置的序列点进行解调，得到第一调制符号。
上述方案中，所述在传输符号上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列，包括：
在频域的N个连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；
或者，
在频域等间隔的N个非连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
上述方案中，针对不同的发送端，对应的第一序列不同，或者传输符号所映射的频域位置不同。
上述方案中，所述方法还包括：
对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
本公开实施例又提供了一种信号发送装置，包括：
获取单元，配置为获取长度为N的第一序列；N为正整数；
调制单元，配置为在所述第一序列的M个位置上均调制第一调制符号，或者将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述第一调制符号表征调制后的信号；所述调制符号表征调制后的信号；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
发送单元，配置为在传输符号上发送携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
上述方案中，所述装置还包括：
加扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理；
相应地，所述发送单元，配置为在所述传输符号上发送加扰后的携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
本公开实施例还提供了一种信号接收装置，包括：
接收单元，配置为在传输符号上接收携带有第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；N为正整数；
解调单元，配置为利用携带有所述第一调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；或者，
接收单元，配置为在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；N为正整数；G为等于或者大于2的整数，且G等于或者小于N；所述调制符号表征调制后的信号；
解调单元，配置为利用携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到G组调制符号；M为小于N的正整数；或者，
接收单元，配置为在传输符号上接收携带有第一调制符号或者携带有G组调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；携带有所述G组调制符号的第一序列是将长度为N的第一序列的将M个位置分成G组，且每组内均调制相同调制符号后得到的；N为正整数；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
解调单元，配置为利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
上述方案中，所述装置还包括：
信道估计单元，配置为利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
上述方案中，所述装置还包括：
解扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调 制符号的第一序列进行小区级解扰处理。
本公开实施例还提供了一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述任一信号发送方法的步骤，或者实现上述任一信号接收方法的步骤。
本公开实施例提供的信号传输方法、装置及存储介质，发送端获取长度为N的第一序列；N为正整数；在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列；而接收端在传输符号上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；利用携带有相应调制符号的第一序列的M个位置的序列点进行解调，或者利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号，采用第一序列中的部分序列点调制数据(信号)，而其它序列点可以发送参考信号，这样，能够实现同时发送参考信号和数据，且同时发送参考信号和数据时能够保持较低的峰均比。
附图说明
在附图(其不一定是按比例绘制的)中，相似的附图标记可在不同的视图中描述相似的部件。附图以示例而非限制的方式大体示出了本文中所讨论的各个实施例。
图1为本公开实施例一信号发送的方法流程示意图；
图2为本公开实施例一信号接收的方法流程示意图；
图3为本公开实施例一信号传输的方法流程示意图；
图4为本公开实施例二用户终端在1个符号上将数据调制在长度N＝12的预定义序列奇数位的示意图；
图5为本公开实施例三用户终端在1个符号上将数据调制在长度N＝24 的预定义Zadoff-Chu序列偶数位的示意图；
图6为本公开实施例五用户终端在1个符号同时发送SR和ACK/NACK消息的示意图；
图7本公开实施例六用户终端在2个符号上将数据调制在长度N＝24的预定义Zadoff-Chu序列偶数位的示意图；
图8为本公开实施例七用户终端在1个符号上将预定义序列映射到频域等间隔子载波的示意图；
图9为本公开实施例八用户终端在1个符号上将数据调制在长度N＝12的预定义序列中4个预定位置的示意图；
图10为本公开实施例九用户终端在1个符号上将数据调制在预定义序列的三组位置的示意图；
图11为本公开实施例十一信号发送装置结构示意图；
图12为本公开实施例十一信号接收装置结构示意图；
图13为本公开实施例十一信号传输系统结构示意图。
具体实施方式
下面结合附图及实施例对本公开再作进一步详细的描述。
目前，由于上行控制符号可能只占用1～2个正交频分复用(OFDM，Orthogonal Frequency Division Multiplexing)符号或者单载波频分复用(SC-FDMA，Single Carrier-Frequency Division Multiplexing Access)符号。所以在这种情况下，物理上行控制信道(PUCCH，Physical Uplink Control Channel)的性能将可能会成为小区覆盖的瓶颈。为此，应当尽可能保持上行单载波特性以支持更高的覆盖。而当PUCCH只占用一个符号时，如何将参考信号(RS，Reference Signal)(导频信号)和数据(PUCCH)在一个符号上发送，并保持较低峰均比将成为一个问题。
另外，PUCCH可用于发送ACK消息、NACK消息及SR。在PUCCH Format 1/1a/1b中，当同时发送ACK/NACK消息和SR时，可以利用SR的信道资源发送ACK/NACK消息，较好地解决了两者复用问题。然而当 PUCCH的符号数只有1个时，5G系统所设计的信道结构也应能高效解决ACK/NCK消息和SR复用的问题。
基于此，在本公开的各种实施例中：发送端获取长度为N的第一序列；N为正整数；在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列；而接收端在传输符号上接收携带有相应调制符号的第一序列；利用携带有所述相应调制符号的第一序列的M个位置的序列点进行解调，或者利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应调制符号。
实施例一
本公开实施例信号发送的方法，应用于用户终端，如图1所示，该方法包括以下步骤：
步骤101：获取长度为N的第一序列；
这里，N为正整数。
实际应用时，所述第一序列是预先定义的序列。也就是说，用户终端事先已获知第一序列。
这里，在一实施例中，所述第一序列可以为第二序列经过不同频域相位旋转得到的，和/或所述第一序列为第二序列经过不同时序循环移位得到的；其中，
所述第二序列可以是幅值为非零常数，且长度为N的序列。
其中，所述第二序列可以为Zadoff-Chu序列，或者由Zadoff-Chu序列变换得到。
所述第二序列由Zadoff-Chu序列变换得到，具体可以是：所述第二序列由Zadoff-Chu序列截短获得，或者由Zadoff-Chu序列循环扩展获得。
这里，所述第二序列为Zadoff-Chu序列时，N为12、或为24、或为36。
实际应用时，所述第二序列还可以为由QPSK相位调制获得的机选序列。此时，N可以为12或者24。
当所述第一序列由第二序列经过不同时序循环移位得到时，所述第一序列包含在序列集合中，所述序列集合中包含K个由所述第二序列经过不同时序循环移位得到的序列；K为正整数，且
Figure PCTCN2017119139-appb-000004
其中，当N为偶数时，所述序列集合为所述第二序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000005
所生成序列构成集合的子集。
当N为奇数时，所述序列集合为所述第二序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000006
所生成序列构成集合的子集。
这里，α k大于等于另的整数。
Figure PCTCN2017119139-appb-000007
表示向上取整。
其中，当N为偶数时，K个序列满足以下条件至少之一：
不同序列相互正交；
不同序列的偶数位构成的长度为N/2的序列相互正交；
不同序列的奇数位构成的长度为N/2的序列相互正交。
所述第二序列为Zadoff-Chu序列时，N可以为12、24、或者36。
步骤102：在所述第一序列的M个位置上均调制第一调制符号或者M个位置所分成的G组中每组内均调制相同的调制符号；
这里，所述第一调制符号表征调制后的信号。
M为小于N的正整数。
在M个位置所分成的G组中每组内均调制相同的调制符号时，所述发送端将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号。
其中，所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N。
实际应用时，M个位置是预定义的，也就是说，用户终端实现已获知M个位置的具体位置。
在一实施例中，所述M个位置可以为所述第一序列的偶数序列点位置，也可以为所述第一序列的奇数序列点位置。
其中，实际应用时，当所述M个位置为所述第一序列的偶数序列点位置时，所述M个位置具体可以为所述第一序列的所有偶数点位置的子集。
当所述M个位置为所述第一序列的奇数序列点位置时，所述M个位置具体可以为所述第一序列的所有奇数点位置的子集。
实际应用时，所述信号可以是上行控制信号，比如ACK或NACK消息等。
因此，所述第一调制符号可以为调制的ACK或NACK消息或数据信息。
其中，当发送1比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过BPSK调制后的ACK或NACK消息。
当发送2比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过QPSK调制后的ACK或NACK消息。
所述上行是指：用户终端向基站发送信息的方向。
当发送大于或者等于2比特消息时，将所述第一序列的M个位置分为G组，每组均调制相同的调制符号。
具体地，当发送2比特的消息时，将所述第一序列的M个位置分为三组，每组均调制相同的调制符号。
其中，三组调制符号定义为{s G1,s G2,s G3}，其中s G1为第一组位置对应的调制符号，s G2为第二组位置对应的调制符号，s G3为第三组位置对应的调制符号；
{s G1,s G2,s G3}取值为{1,1,1}，{j,-1,-j}，{-1,1,-1}，{-j,-1,j}之一，或者，{s G1,s G2,s G3}取值为{1,1,1}，{-1,-1,-1}，{j,j,j}，{-j,-j,-j}之一。
其中，j表示单位虚数。
这里，当N＝12，M＝9时，所述第一序列中索引为{1,5,9}的序列点设为 第一组，所述第一序列中索引为{2,6,10}的序列点设为第二组，所述第一序列中索引为{3,7,11}的序列点设为第三组。
在一实施例中，当发送1比特消息时，确定两个第一序列，所述两个第一序列的时域循环移位量相差N/2。
当发送2比特消息时，确定四个第一序列，四个第一序列中任意两个序列的时域循环移位量的差值为N/4的整数倍。
在一实施例中，所述第一序列携带的第一调制符号为1，或者所述第一序列携带的G组调制符号均为1。
当需要同时发送SR和ACK与NACK消息中的之一时，即同时发送SR与ACK消息或同时发送SR与NACK消息时，所述第一序列为所述SR对应的序列，即SR序列。
这里，SR序列是指已经承载有SR的序列。
步骤103：在传输符号上发送携带有相应调制符号的第一序列。
具体地，将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域的N个连续子载波上发送；或者，将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域等间隔的N个非连续子载波上发送。
其中，将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域等间隔的N个非连续子载波上发送，可以利于在未映射的频域位置(子载波上)发送探测参考信号(SRS)。
实际应用时，所述传输符号的可以个数为至少两个；
相应地，当所述传输符号的个数为至少两个时，在每个传输符号上均发送携带有所述第一调制符号的第一序列。
其中，每个传输符号对应的第一序列不同。
不同传输符号所映射的频域位置不同，如此，能够获得频分增益。
针对不同的发送端，对应的第一序列不同，或者传输符号所映射的频域位置不同，如此，可以避免网络小区内不同用户终端之间的干扰。
其中，实际应用时，为了降低小区间的干扰，不同网络小区之间可使用不同的第一序列，或者不同网络小区发送信号时进行小区级的加扰。
基于此，在传输符号上发送携带有所述第一调制符号或者携带有所述G组调制符号的第一序列时，所述方法还包括：
对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理；
相应地，在所述传输符号上发送加扰后的携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
这里，实际应用时，可以采用小区专用扰码序列对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理。
相应地，本公开实施例还提供了一种信号接收方法，应用于基站，如图2所示，该方法包括以下步骤：
步骤201：在传输符号上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；
具体地，在频域的N个连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；或者，在频域等间隔的N个非连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
其中，当携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域的N个连续子载波上发送时，在频域的N个连续子载波上接收携带有所述第一调制符号或者带携有所述G组调制符号的第一序列。
当携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域等间隔的N个非连续子载波上发送时，在频域等间隔的N个非连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
步骤202：利用携带有所述第一调制符号或者携带有所述G组调制符 号的第一序列的M个位置的序列点进行解调或者利用所有序列点进行非相干解调，得到相应调制符号。
对于步骤201～202，具体地，所述接收端在传输符号上接收携带有第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；利用携带有所述第一调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号。
所述接收端在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；利用携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到G组调制符号。
当所述接收端在传输符号上接收携带有第一调制符号或者携带有所述G组调制符号的第一序列时，还可以利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
这里，实际应用时，该方法还可以包括：
利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
这里，当携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理后，在执行本步骤之前，该方法还可以包括：
对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
这里，实际应用时，可以采用小区专用扰码序列对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
实际应用时，当同时发送了SR与ACK消息或同时发送了SR与NACK消息时，利用携带有所述第一调制符号或者携带有所述G组调制符号的SR序列的M个位置的序列点进行解调，得到相应调制符号。
需要说明的是：针对不同的发送端(用户终端)，对应的第一序列不同，或者传输符号所映射的频域位置不同。
相应地，本公开实施例还提供了一种信号传输方法，如图3所示，该方法包括：
步骤301：发送端获取长度为N的第一序列；
这里，N为正整数。
步骤302：所述发送端在所述第一序列的M个位置上均调制第一调制符号或者M个位置所分成的G组中每组内均调制相同的调制符号；
这里，所述第一调制符号表征调制后的信号；M为小于N的正整数。
所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N。
步骤303：所述发送端在传输符号上发送携带有相应调制符号的第一序列；
步骤304：接收端在传输符号上接收携带有相应调制符号的第一序列；
步骤305：所述接收端利用携带有所述相应调制符号的第一序列的M个位置的序列点进行解调或者利用所有序列点进行非相干解调，得到相应的调制符号。
需要说明的是：发送端和接收端的具体处理过程已在上文详述，这里不再赘述。
本公开实施例提供的信号传输方法，发送端获取长度为N的第一序列；N为正整数；在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列；而接收端在传输符号上接收携带有相应调制符号的第一序列；利用携带有所述相应调制符号的第一序列的M个位置的序列点进行解调，或者利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应调制符号，采用第一序列中的部分 序列点调制数据(信号)，而其它序列点可以发送参考信号，这样，能够实现同时发送参考信号和数据，且同时发送参考信号和数据时能够保持较低的峰均比低。
另外，实际应用时，N的取值可以比较大，从而可以使得小区间干扰更低。
除此以外，当同时SR和ACK与NACK消息中的之一时，即同时发送SR与ACK消息或同时发送SR与NACK消息时，所述第一序列为所述SR对应的序列，即SR序列，这样，能够实现ACK/NACK消息与SR的复用。
实施例二
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图4为用户终端在1个符号上将数据(即控制信息)调制在长度N＝12的预定义序列奇数位的示意图。
结合图4可以看出，ACK/NACK消息(控制信息)进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W(n)的奇数位，即在预定义序列W(n)的奇数位均调制S k，其余序列点保持不变，即偶数位的序列点保持不变，然后映射到频域的12个连续子载波上发送。
其中，W(n)为长度N＝12的QPSK机选序列。
这里，所述QPSK的机选序列在频域上可表示为
Figure PCTCN2017119139-appb-000008
0≤n＜N，其中，
Figure PCTCN2017119139-appb-000009
可在1，-1，3，-3中取值。不同的基序列的
Figure PCTCN2017119139-appb-000010
取值不同。
对于确定的基序列，即确定的
Figure PCTCN2017119139-appb-000011
取值，其频域上的相位偏转序列可表示为：
Figure PCTCN2017119139-appb-000012
其中
Figure PCTCN2017119139-appb-000013
表示相位旋转量，α可以定义为时域上的循环移位量。
假设确定的
Figure PCTCN2017119139-appb-000014
取值为[-1，1，3，-3，3，3，1，1，3，1，-3，3]，其对应的频域上的基序列以及其经过5种不同循环移位量获得的相位偏转序列，如表1所示。
Figure PCTCN2017119139-appb-000015
Figure PCTCN2017119139-appb-000016
表1
实际应用时，可以选取其中的任意
Figure PCTCN2017119139-appb-000017
个由一个序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000018
所生成的序列构成预定义序列集合。举个例子来说，假设α k＝0，则可选取表1中的6列作为不同用户终端的QPSK机选序列，即预定义序列。
此时选取的序列可以满足以下条件至少之一：
不同用户终端的预定义序列相互正交；
不同用户终端的预定义序列的偶数位构成的长度为6的序列相互正交；
不同用户终端的预定义序列的奇数位构成的长度为6的序列相互正交。
发出预定义序列后，对于接收端，可以根据本地序列，利用序列中的偶数位(表征参考信号)进行信道估计，然后解调奇数位的有效数据。且不同用户终端之间采用不同的预定义序列区分。
实施例三
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图5中为用户终端在1个符号上将数据(即控制信息)调制在长度N＝24的预定义Zadoff-Chu序列偶数位的示意图。
结合图5可以看出，ACK/NACK(控制信息)消息进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W(n)的偶数位，即在预定义序列W(n)的偶数位均调制S k，其余序列点保持不变，即奇数位的序列点保持不变，然后映射到频域的24个连续子载波上发送。
其中，W(n)为长度N＝24的Zadoff-Chu序列。
这里，Zadoff-Chu序列在频域上可表示为
Figure PCTCN2017119139-appb-000019
0≤n＜N，其中， q为基序列索引，与长度N互质。
对于确定的基序列，即确定的q值，其频域上的相位偏转序列可表示为：
Figure PCTCN2017119139-appb-000020
其中
Figure PCTCN2017119139-appb-000021
表示相位旋转量，α可以定义为时域上的循环移位量。
实际应用时，可以选取其中的任意
Figure PCTCN2017119139-appb-000022
个由一个序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000023
所生成的序列构成构成所述预定义序列集合。举个例子来说，假设α k＝12，则可选取由一个基序列经过循环移位量分别为12,13,…,23所生成的序列构成预定义序列。
此时，选取的预定义序列满足以下条件至少之一：
不同用户终端的预定义序列相互正交；
不同用户终端的预定义序列的偶数位构成的长度为12的序列相互正交；
不同用户终端的预定义序列的奇数位构成的长度为12的序列相互正交。
另外，预定义序列在预定位置上叠加行控制信息后时域上仍保持良好的峰均比。
发出预定义序列后，对于接收端，可以根据本地序列，利用序列中的奇数位(表征参考信号)进行信道估计，然后解调偶数位的有效数据。且不同用户终端之间采用不同的预定义序列区分。
实施例四
在实施例一、三的基础上，本实施例详细描述预定义的序列。
在本实施例中，预定义的序列长度N大于24。
需要说明的是：预定义的序列可以利用实施例三中所描述的通过偶数长度ZC序列产生。
也可以通过对奇数长度的ZC序列截短生成，或者通过对奇数长度的ZC序列循环扩展生成。
其中，奇数长度的ZC序列在频域上可以表示为
Figure PCTCN2017119139-appb-000024
Figure PCTCN2017119139-appb-000025
其中q为基序列索引，与长度X互质。
对于确定的基序列，即确定的q值，其频域上的相位偏转序列可表示为：
Figure PCTCN2017119139-appb-000026
其中
Figure PCTCN2017119139-appb-000027
为相位旋转量，α可以定义为时域上的循环移位量。
比如N＝36为例，其可由长度为X＝31的ZC序列产生。
实际应用时，可以选取其中的任意
Figure PCTCN2017119139-appb-000028
个由一个基序列经过循环移位量分别为
Figure PCTCN2017119139-appb-000029
所生成的序列构成预定义序列集合。以α k＝6为例，则可选取由一个基序列经过循环移位量分别为6,7,…,23所生成的序列构成预定义序列。
此时这18个预定义序列满足以下条件至少之一：
不同用户终端的预定义序列相互正交；
不同用户终端的预定义序列的偶数位构成的长度为18的序列相互正交；
不同用户终端的预定义序列的奇数位构成的长度为18的序列相互正交。
实施例五
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图6为用户终端在1个符号同时发送SR和ACK/NACK消息的示意图。
假设W(n)是分配给用户终端的用于发送ACK/NACK消息的预定义序列，W SR(n)是分配给用户终端的用于发送SR的预定义序列。
W(n)，W SR(n)均为长度N＝24的QPSK机选序列。
当同时发送SR和ACK/NACK消息时，发送ACK/NACK消息预定义序列定义为W SR(n)。其中，W SR(n)承载了SR。
结合图6可以看出，ACK/NACK(控制信息)消息进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W SR(n) 的偶数位，即在预定义序列W SR(n)的偶数位均调制S k，其余序列点保持不变，即偶＝奇数位的序列点保持不变，然后映射到频域的24个连续子载波上发送。
其中，发送ACK/NACK消息的所述QPSK的机选序列在频域上可表示为
Figure PCTCN2017119139-appb-000030
0≤n＜N，其中
Figure PCTCN2017119139-appb-000031
可取在1，-1，3，-3中取值。不同的基序列的
Figure PCTCN2017119139-appb-000032
取值不同。
对于确定的基序列，即确定的
Figure PCTCN2017119139-appb-000033
取值，其频域上的相位偏转序列可表示为：
Figure PCTCN2017119139-appb-000034
其中
Figure PCTCN2017119139-appb-000035
为相位旋转量，α可以定义为时域上的循环移位量。
发出预定义序列后，对于接收端，接收端利用本地序列W SR(n)分别进行SR的检测及ACK/NACK消息的检测(解调偶数位的有效数据)。且不同用户终端之间采用不同的预定义序列区分。当然，接收端可以利用序列中的奇数位(表征参考信号)进行信道估计。
实施例六
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图7为用户终端在2个符号上将数据(即控制信息)调制在长度N＝24的预定义Zadoff-Chu序列偶数位的示意图。
结合图7可以看出，ACK/NACK消息(控制信息)进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W 1(n)、W 2(n)的偶数位，即在预定义序列W 1(n)、W 2(n)的偶数位均调制S k，其余序列点保持不变，即奇数位的序列点保持不变，然后映射到频域的24个连续子载波上发送。
其中，W 1(n)、W 2(n)均为长度N＝24的Zadoff-Chu序列。
这里，每个符号上所映射的子载波位置在不同的频域位置，如此，有利于获得频分增益。
发出预定义序列后，对于接收端，可以根据本地序列，利用每个符号上的奇数子载波(表征参考信号)用于信道估计，然后解调偶数位的有效 数据。且不同用户终端之间采用不同的预定义序列区分。
实际应用时，两个符号可以是两个独立的符号，两个符号也可以为由一个符号经过分裂获得的两个符号，所述分裂指采用更大的子载波间隔获得更短的时域符号。
实施例七
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图8中为用户终端在1个符号上将预定义序列映射到频域等间隔子载波的示意图。
假设W(n)为长度N＝12的QPSK机选序列，表示分配给用户终端用于发生ACK/NACK消息的预定义序列。
从图8可以看出，ACK/NACK消息(控制信息)进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W(n)的奇数位，即在预定义序列W(n)的奇数位均调制S k，其余序列点保持不变，即偶数位的序列点保持不变，然后映射到频域等间隔的12个子载波上发送，这种映射结构有利于在未映射的频域位置发送SRS。
实施例八
在实施例一的基础上，本实施例详细描述参考信号和数据的发送方式。
图9为用户终端在1个符号上将数据(即控制信息)调制在长度N＝12的预定义序列中4个预定位置的示意图。
假设4个预定位置为预定义序列的第1,4,7,10个序列点。
结合图9可以看出，ACK/NACK消息(控制信息)进行BPSK或QPSK调制后，得到调制后的ACK/NACK消息S k，接着将S k乘在预定义序列W(n)中的第1,4,7,10个序列点，即在预定义序列W(n)的第1,4,7,10个序列点均调制S k，其余序列点保持不变，然后映射到频域的12个连续子载波上发送。
其中，W(n)为长度N＝12的QPSK机选序列。
那么在接收端，可根据本地序列，分别利用序列点位置0,2,3,5,6,8,9,11进行信道估计，然后解调第1,4,7,10个序列点位上的调制数据。且不同用户终端之间采用不同的预定义序列区分。不同用户终端的预定义序列的第1,4,7,10个序列点构成的序列相互正交，不同用户终端的预定义序列的第0,2,3,5,6,8,9,11个序列点构成的序列相互正交。
实施例九
图10为本公开实施例九用户终端在1个符号上将数据调制在预定义序列的3组位置的示意图；图中序列长度为N＝12，发送信息的比特数为2bit，采用的调制方式为QPSK。
图10中，将序列点分为三组，其中序列点{1,5,9}为一组，序列点{2,6,10}为一组，序列点{3,7,11}为一组，每组点调制上相同的调制符号。其中每组对应的调制符号分别为s k1，s k2，s k3。定义集合{s k1,s k2,s k3}，根据2bit信息的四种可能即00,01,10,11确定集合值。其中，{s k1,s k2,s k3}为{1,1,1}，{j,-1,-j}，{-1,1,-1}，{-j,-1,j}之一，如发送00时，{s k1,s k2,s k3}为{1,1,1}。
不同用户终端采用同一基序列的不同循环移位序列，且优选地，不同用户终端的循环移位量的差值为A，其中A mod 3为1或者2。此时不同用户终端的序列点{1,2,3,5,6,7,9,10,11}构成的序列相互正交，{0,4,8}构成的序列相互正交。
在接收端，可以利用相干检测进行解调。具体地，利用图中的序列点0,4,8所在位置进行信道估计，然后对三组序列点进行解调。或者，因为不同用户终端采用的序列相互正交且调制上调制符号后仍正交，因此接收端用户可以根据非相干检测通过峰值进行判断。
进一步，接收端可以根据信道状况选择接收端检测方法，如高信噪比时采用相干检测，低信噪比时采用非相干检测，或者采用相干和非相干联合检测。
实施例十
本实施例给出了当基站给每个用户终端预定义多个第一序列时的发送方法。当发送1比特信息，如1比特ACK/NACK信息时，基站为用户终端定义两个预定义序列。所述预定义序列满足时域循环移位量相差N/2。此时在同一频域资源位置可以复用的发送1比特信息的用户数为N/2。如当N＝12时，定义序列组合对(0,6)，(1,7)，(2,8)，(3,9)，(4,10)，(5,11)，不同用户终端选择不同的序列对，对于某一特定用户终端在发送ACK、NACK时采用序列对中的一个发送。
需要说明的是，上述括号中的值为基于某一序列的时域循环移位量。
当发送2比特信息，基站为用户终端定义四个第一序列，任意两个序列的时域循环移位量的差值为N/4的整数倍。如当N＝12时，定义序列组合对(0,3,6,9)，(1,4,7,10)，(2,5,8,11)，不同用户终端选择不同的序列对，对于某一特定用户终端根据发送的2bit信息选择序列对中的一个发送。
采用此实施例确定多个第一预定义序列时，接收端用户可以根据非相干检测通过峰值进行判断，或者通过对部分序列点位置进行信道估计来实现相干检测。
当定义多个第一序列时，优选地，本公开实施例所述的第一调制符号或者G组调制符号均为1。
实施例十一
为实现本公开实施例的方法，本实施例提供一种信号发送装置，可以设置在用户终端，如图11所示，所述装置包括：
获取单元111，配置为获取长度为N的第一序列；N为正整数；
调制单元112，配置为在所述第一序列的M个位置上均调制第一调制符号，或者将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述第一调制符号表征调制后的信号；所述调制符号表征调制后的信号；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
发送单元113，配置为在传输符号上发送携带有所述第一调制符号或者 携带有所述G组调制符号的第一序列。
其中，所述获取单元111，具体配置为：
当同时发送SR与ACK消息或同时发送SR与NACK消息时，将所述SR对应的序列作为所述第一序列。即SR序列作为所述第一序列。
所述发送单元113，具体配置为：
将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域的N个连续子载波上发送；
或者，
将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域等间隔的N个非连续子载波上发送。
在一实施例中，该装置还可以包括：
加扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理；
相应地，所述发送单元113，配置为在所述传输符号上发送加扰后的携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
实际应用时，获取单元111、调制单元112及加扰单元可由信号发送装置中的处理器(比如中央处理器(CPU，Central Processing Unit)、微处理器(MCU，Micro Control Unit)、数字信号处理器(DSP，Digital Signal Processor)或可编程逻辑阵列(FPGA，Field－Programmable Gate Array)等)实现；所述发送单元113可由信号发送装置中的收发机实现。
为实现本公开实施例的方法，本实施例还提供了一种信号接收装置，可以设置在基站，如图12所示，该装置包括：
接收单元121，配置为在传输符号上接收携带有所述第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；N为正整数；
解调单元122，配置为利用携带有所述第一调制符号的第一序列的M 个位置的序列点进行解调，得到第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数。
或者，接收单元121，配置为在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；N为正整数；G为等于或者大于2的整数，且G等于或者小于N；所述调制符号表征调制后的信号；
解调单元122，配置为利用携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到G组调制符号；M为小于N的正整数。
或者，接收单元121，配置为在传输符号上接收携带有第一调制符号或者携带有所述G组调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分成G组，且每组内均调制相同调制符号后得到的；N为正整数；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
解调单元122，配置为利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
其中，该装置还可以包括：
信道估计单元123，配置为利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
其中，所述解调单元122，具体配置为：
当同时发送SR与ACK消息或同时发送SR与NACK消息时，利用携带有所述第一调制符号或者携带有所述G组调制符号的SR序列的M个位置的序列点进行解调，得到第一调制符号。
所述接收单元121，具体配置为：
在频域的N个连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；
或者，
在频域等间隔的N个非连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
在一实施例中，该装置还可以包括：
解扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
实际应用时，所述接收单元121可由信号接收装置中的收发机实现，所述解调单元122、信道估计单元123以及解扰单元可由信号接收装置中的处理器(比如CPU、MCU、DSP或FPGA等)实现。
相应地，为实现本公开实施例的方法，本实施例还提供了一种信号传输系统，如图13所示，该系统包括：
发送端131，配置为获取长度为N的第一序列；这里，N为正整数；在所述第一序列的M个位置上均调制第一调制符号或者讲M个位置所分成的G组中每组内均调制相同的调制符号；相应调制符号表征调制后的信号；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；以及在传输符号上发送携带有所述相应调制符号的第一序列；
接收端132，配置为在传输符号上接收携带有所述相应调制符号的第一序列；利用携带有所述相应调制符号的第一序列的M个位置的序列点进行解调或者利用所有序列点进行非相干解调，得到相应调制符号。
实际应用时，发送端131可以是用户终端，相应地，接收端132可以是基站。
需要说明的是：发送端131和接收端132的具体功能已在上文详述，这里不再赘述。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘 存储器和光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
基于此，本公开实施例还提供了一种存储介质，具体为计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现上述任一信号发送方法的步骤，或者实现上述任一信号接收方法的步骤。
以上所述，仅为本公开的较佳实施例而已，并非用于限定本公开的保护范围。
工业实用性
本公开实施例提供的方案，发送端获取长度为N的第一序列；N为正整数；在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G 组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列；而接收端在传输符号上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；利用携带有相应调制符号的第一序列的M个位置的序列点进行解调，或者利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号，采用第一序列中的部分序列点调制数据(信号)，而其它序列点可以发送参考信号，这样，能够实现同时发送参考信号和数据，且同时发送参考信号和数据时能够保持较低的峰均比。

Claims (44)

  1. 一种信号发送方法，包括：
    获取长度为N的第一序列；N为正整数；
    在所述第一序列的M个位置上均调制第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；在传输符号上发送携带有所述第一调制符号的第一序列；或者，将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述调制符号表征调制后的信号；G为等于或者大于2的整数，且G等于或者小于N；在传输符号上发送携带有所述G组调制符号的第一序列。
  2. 根据权利要求1所述的方法，其中，所述M个位置为所述第一序列的偶数序列点位置，或为所述第一序列的奇数序列点位置。
  3. 根据权利要求2所述的方法，其中，所述M个位置为所述第一序列的所有偶数点位置的子集。
  4. 根据权利要求2所述的方法，其中，所述M个位置为所述第一序列的所有奇数点位置的子集。
  5. 根据权利要求1所述的方法，其中，所述第一序列为第二序列经过不同频域相位旋转得到的，和/或所述第一序列为第二序列经过不同时序循环移位得到的；其中，
    所述第二序列的幅值为非零常数，且所述第二序列的长度为N。
  6. 根据权利要求5所述的方法，其中，所述第二序列为Zadoff-Chu序列，或者由Zadoff-Chu序列变换得到。
  7. 根据权利要求6所述的方法，其中，所述第二序列由Zadoff-Chu序列截短获得，或者由Zadoff-Chu序列循环扩展获得。
  8. 根据权利要求5所述的方法，其中，所述第二序列为由正交相移键控相位调制获得的机选序列。
  9. 根据权利要求5所述的方法，其中，所述第一序列由第二序列经过不同时序循环移位得到时，所述第一序列包含在序列集合中，所述序列集 合中包含K个由所述第二序列经过不同时序循环移位得到的序列；K为正整数，且
    Figure PCTCN2017119139-appb-100001
  10. 根据权利要求9所述的方法，其中，当N为偶数时，所述序列集合为所述第二序列经过循环移位量分别为
    Figure PCTCN2017119139-appb-100002
    所生成序列构成集合的子集；α k大于等于零的整数。
  11. 根据权利要求9所述的方法，其中，当N为奇数时，所述序列集合为所述第二序列经过循环移位量分别为
    Figure PCTCN2017119139-appb-100003
    所生成序列构成集合的子集；α k大于等于零的整数。
  12. 根据权利要求9所述的方法，其中，当N为偶数时，K个序列满足以下条件至少之一：
    不同序列相互正交；
    不同序列的偶数位构成的长度为N/2的序列相互正交；
    不同序列的奇数位构成的长度为N/2的序列相互正交。
  13. 根据权利要求6所述的方法，其中，所述第二序列为Zadoff-Chu序列时，N为12、或为24、或为36。
  14. 根据权利要求8所述的方法，其中，N为12、或为24。
  15. 根据权利要求1所述的方法，其中，所述第一调制符号为调制的确认ACK或非确认NACK消息或数据信息。
  16. 根据权利要求15所述的方法，其中，当发送1比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过二进制相移键控调制后的ACK或NACK消息。
  17. 根据权利要求15所述的方法，其中，当发送2比特的ACK或NACK消息时，将所述第一序列的M个位置上均调制第一调制符号，所述第一调制符号为经过正交相移键控调制后的ACK或NACK消息。
  18. 根据权利要求1所述的方法，其中，当发送大于或者等于2比特消息时，将所述第一序列的M个位置分为G组，每组均调制相同的调制符号。
  19. 根据权利要求18所述的方法，其中，当发送2比特的消息时，将所述第一序列的M个位置分为三组，每组均调制相同的调制符号。
  20. 根据权利要求19所述的方法，其中，所述三组调制符号为{s G1,s G2,s G3}，其中s G1为第一组位置对应的调制符号，s G2为第二组位置对应的调制符号，s G3为第三组位置对应的调制符号；
    {s G1,s G2,s G3}取值为{1,1,1}，{j,-1,-j}，{-1,1,-1}，{-j,-1,j}之一，或者，{s G1,s G2,s G3}取值为{1,1,1}，{-1,-1,-1}，{j,j,j}，{-j,-j,-j}之一；其中，j表示单位虚数。
  21. 根据权利要求20所述的方法，其中，N＝12，M＝9，所述第一序列中索引为{1,5,9}的序列点为第一组，所述第一序列中索引为{2,6,10}的序列点为第二组，所述第一序列中索引为{3,7,11}的序列点为第三组。
  22. 根据权利要求5所述的方法，其中，当发送1比特消息时，确定两个第一序列，所述两个第一序列的时域循环移位量相差N/2。
  23. 根据权利要求5所述的方法，其中，当发送2比特消息时，确定四个第一序列，四个第一序列中任意两个序列的时域循环移位量的差值为N/4的整数倍。
  24. 根据权利要求22或23所述的方法，其中，所述第一序列携带的第一调制符号为1，或者所述第一序列携带的G组调制符号均为1。
  25. 根据权利要求1所述的方法，其中，当同时发送调度请求与确认ACK消息或同时发送调度请求和非确认NACK消息时，所述第一序列为所述调度请求对应的序列。
  26. 根据权利要求1所述的方法，其中，所述在传输符号上发送携带有所述第一调制符号的第一序列或者发送携带有所述G组调制的第一序列，包括：
    将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列映射在频域的N个连续子载波上发送；
    或者，
    将携带有所述第一调制符号或者携带有所述G组调制符号的第一序列 映射在频域等间隔的N个非连续子载波上发送。
  27. 根据权利要求1所述的方法，其中，当所述传输符号的个数为至少两个时，在每个传输符号上均发送携带有所述第一调制符号的第一序列。
  28. 根据权利要求27所述的方法，其中，每个传输符号对应的第一序列不同。
  29. 根据权利要求27所述的方法，其中，不同传输符号所映射的频域位置不同。
  30. 根据权利要求1所述的方法，其中，针对不同的发送端，对应的第一序列不同，或者传输符号所映射的频域位置不同。
  31. 根据权利要求1所述的方法，其中，在传输符号上发送携带有所述第一调制符号或者携带有所述G组调制符号的第一序列时，所述方法还包括：
    对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理；
    相应地，在所述传输符号上发送加扰后的携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
  32. 一种信号接收方法，包括：
    在传输符号上接收携带有第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；N为正整数；利用携带有所述第一调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；或者，
    在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；N为正整数；G为等于或者大于2的整数，且G等于或者小于N；所述调制符号表征调制后的信号；利用携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到G组调制符号；M为小于N的正整数；或者，
    在传输符号上接收携带有第一调制符号或者携带有所述G组调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分成G组，且每组内均调制相同调制符号后得到的；N为正整数；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
  33. 根据权利要求32所述的方法，其中，所述M个位置为所述第一序列的偶数序列点位置，或为所述第一序列的奇数序列点位置。
  34. 根据权利要求32所述的方法，其中，所述方法还包括；
    利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
  35. 根据权利要求32所述的方法，其中，当同时发送调度请求与确认ACK消息或同时发送调度请求和非确认NACK消息时，所述利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号包括：
    利用携带有所述第一调制符号或者携带有所述G组调制符号的调度请求序列的M个位置的序列点进行解调，得到第一调制符号。
  36. 根据权利要求32所述的方法，其中，所述在传输符号上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列，包括：
    在频域的N个连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列；
    或者，
    在频域等间隔的N个非连续子载波上接收携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
  37. 根据权利要求32所述的方法，其中，针对不同的发送端，对应的第一序列不同，或者传输符号所映射的频域位置不同。
  38. 根据权利要求35所述的方法，其中，所述方法还包括：
    对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
  39. 一种信号发送装置，包括：
    获取单元，配置为获取长度为N的第一序列；N为正整数；
    调制单元，配置为在所述第一序列的M个位置上均调制第一调制符号，或者将所述第一序列的M个位置分为G组，每组内均调制相同的调制符号；所述第一调制符号表征调制后的信号；所述调制符号表征调制后的信号；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
    发送单元，配置为在传输符号上发送携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
  40. 根据权利要求39所述的装置，其中，所述装置还包括：
    加扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级加扰处理；
    相应地，所述发送单元，配置为在所述传输符号上发送加扰后的携带有所述第一调制符号或者携带有所述G组调制符号的第一序列。
  41. 一种信号接收装置，包括：
    接收单元，配置为在传输符号上接收携带有第一调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；N为正整数；
    解调单元，配置为利用携带有所述第一调制符号的第一序列的M个位置的序列点进行解调，得到第一调制符号；所述第一调制符号表征调制后的信号；M为小于N的正整数；或者，
    接收单元，配置为在传输符号上接收携带有G组调制符号的第一序列；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分为G组，且每组内均调制相同调制符号后得到的；N为正整数；G为等于或者大于2的整数，且G等于或者小于N；所述调制符号表征调制后的信号；
    解调单元，配置为利用携带有所述G组调制符号的第一序列的M个位 置的序列点进行解调，得到G组调制符号；M为小于N的正整数；或者，
    接收单元，配置为在传输符号上接收携带有第一调制符号或者携带有G组调制符号的第一序列；携带有所述第一调制符号的第一序列是长度为N的第一序列的M个位置上均调制第一调制符号后得到的；携带有所述G组调制符号的第一序列是将长度为N的第一序列的M个位置分成G组，且每组内均调制相同调制符号后得到的；N为正整数；M为小于N的正整数；G为等于或者大于2的整数，且G等于或者小于N；
    解调单元，配置为利用携带有相应调制符号的第一序列的所有序列点进行非相干解调，得到相应的调制符号。
  42. 根据权利要求41所述的装置，其中，所述装置还包括：
    信道估计单元，配置为利用携带有所述第一调制符号或者携带有所述G组调制符号的第一序列中除M个位置外的其它位置的序列点进行信道估计。
  43. 根据权利要求41所述的装置，其中，所述装置还包括：
    解扰单元，配置为对携带有所述第一调制符号或者携带有所述G组调制符号的第一序列进行小区级解扰处理。
  44. 一种存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1至31任一项所述方法的步骤，或者实现权利要求32至38任一项所述方法的步骤。
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