WO2019047622A1 - Procédé et appareil de traitement de signal basé sur une séquence - Google Patents

Procédé et appareil de traitement de signal basé sur une séquence Download PDF

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Publication number
WO2019047622A1
WO2019047622A1 PCT/CN2018/096168 CN2018096168W WO2019047622A1 WO 2019047622 A1 WO2019047622 A1 WO 2019047622A1 CN 2018096168 W CN2018096168 W CN 2018096168W WO 2019047622 A1 WO2019047622 A1 WO 2019047622A1
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WIPO (PCT)
Prior art keywords
sequence
sequences
subcarriers
elements
signal
Prior art date
Application number
PCT/CN2018/096168
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English (en)
Chinese (zh)
Inventor
曲秉玉
孙昊
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 CN201711140559.4A external-priority patent/CN109474408B/zh
Priority to JP2020514183A priority Critical patent/JP7217269B2/ja
Priority to EP20216979.3A priority patent/EP3866354B8/fr
Priority to EP23189656.4A priority patent/EP4325785A3/fr
Priority to CA3075193A priority patent/CA3075193C/fr
Priority to RU2020112246A priority patent/RU2776782C2/ru
Priority to CN201880058345.9A priority patent/CN111434054B/zh
Priority to EP18853944.9A priority patent/EP3598666B1/fr
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202210840878.0A priority patent/CN115208544B/zh
Priority to BR112020004558-6A priority patent/BR112020004558A2/pt
Priority to US16/248,527 priority patent/US10827515B2/en
Publication of WO2019047622A1 publication Critical patent/WO2019047622A1/fr
Priority to US16/519,922 priority patent/US10568120B2/en
Priority to US16/746,652 priority patent/US10764915B2/en
Priority to US16/991,141 priority patent/US11464032B2/en
Priority to US17/940,824 priority patent/US20230141169A1/en
Priority to JP2022177554A priority patent/JP7463477B2/ja

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    • 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
    • H04L5/0008—Wavelet-division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a sequence-based signal processing method and apparatus.
  • a physical uplink control channel occupies 13 or 14 orthogonal frequency division multiplexing (OFDM) in one subframe.
  • the symbolic or discrete Fourier transform spread OFDM (DFT-s-OFDM) symbol transmits uplink control information (UCI).
  • the PCUUH format 1a/1b (PUCCH format 1a/1b) transmits 1-bit or 2-bit response information, and the PUCCH format 1a/1b is transmitted in a sequence modulation manner.
  • PUCCH format 1a/1b transmits 1-bit or 2-bit response information
  • the PUCCH format 1a/1b is transmitted in a sequence modulation manner.
  • PAPR peak to average power ratio
  • CM cubic metric
  • the PUCCH format 1a/1b transmits a UCI or a demodulation reference signal (DMRS).
  • DMRS demodulation reference signal
  • these 30 root sequences of length N are mainly designed at the beginning of the LTE system, mainly considering the optimization of CM values and sequence cross-correlation. Because of the relationship between the CM value and the PAPR value, the CM value is low, and the PAPR is not necessarily low. Therefore, when ensuring that 30 root sequences of length N maintain a low CM value and low cross-correlation, it is impossible to ensure that the PAPR value is also low.
  • the PAPR of the 24-length CGS sequence in LTE is large, and the PAPR values are as follows:
  • the embodiments of the present application provide a sequence-based signal processing method, a signal processing apparatus, and a communication system, which are used to solve the problem that 30 existing root sequences in the prior art cannot meet the current communication application environment using PUCCH to transmit signals.
  • the problem is a sequence-based signal processing method, a signal processing apparatus, and a communication system, which are used to solve the problem that 30 existing root sequences in the prior art cannot meet the current communication application environment using PUCCH to transmit signals. The problem.
  • the mapping the sequence ⁇ f n ⁇ to the N subcarriers comprises: mapping the N elements in the sequence ⁇ f n ⁇ to consecutive N subcarriers respectively; Alternatively, the N elements in the sequence ⁇ f n ⁇ are respectively mapped onto equally spaced N subcarriers.
  • the first signal is a reference signal; or the first signal is a signal for carrying communication information.
  • the sequence consisting of the elements s n ⁇ s n ⁇ is equivalent to one fourth of the sequence of one of the sequences in the sequence set or the fourth set of sequences, where the The sequences in the fourth sequence set are described in the specification.
  • the set consisting of the sequence ⁇ s n ⁇ consisting of the elements s n comprises part or all of the sequence in the fifth set of sequences or part of the equivalent sequence of the sequence in the set of fifth sequences Or all, here, the sequence in the fifth sequence set is described in the specification.
  • the sequence ⁇ s n ⁇ of the elements s n is one of the sequences in the sixth sequence set or one of the equivalent sequences of the sequences in the sixth sequence set, here, The sequences in the sixth sequence set can be found in the description.
  • One of the valence sequences, or one of the sequences in the second set of sequences or one of the equivalent sequences of the sequences in the second set of sequences, or one of the sequences in the third set of sequences or the third sequence One of the equivalence sequences of the sequences in the set, where the sequences in the first sequence set, the second sequence set, and the third sequence set can be referred to in the specification
  • the first signal is processed according to the N elements in the sequence ⁇ f n ⁇ .
  • the receiving the first signal that is carried on the N subcarriers includes: acquiring the first signal on the N subcarriers on consecutive N subcarriers; or at equal intervals Acquiring the first signal on the N subcarriers on the N subcarriers.
  • the first signal is a reference signal; or the first signal is a signal for carrying communication information.
  • the sequence consisting of the elements s n ⁇ s n ⁇ is equivalent to one fourth of the sequence of one of the sequences in the sequence set or the fourth set of sequences, where the The sequences in the fourth sequence set can be found in the description.
  • sequence of elements s n ⁇ s n ⁇ consisting of group consisting of a partial sequence comprises a sequence set in the fifth or the equivalent sequence of all or a fifth portion of the sequence set Or all, here, the sequence in the fifth sequence set can be referred to the description in the specification.
  • the sequence ⁇ s n ⁇ of the elements s n is one of the sequences in the sixth sequence set or one of the equivalent sequences of the sequences in the sixth sequence set, here, The sequences in the sixth sequence set can be found in the description.
  • a third aspect of the embodiments of the present application provides a signal processing apparatus, which may be a communication device, or a chip in a communication device, the communication device or the chip having the first aspect or The functionality of a sequence-based signal processing method in any possible design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the communication device includes: a processing unit and a transceiver unit, the processing unit may be a processor, the transceiver unit may be a transceiver, the transceiver includes a radio frequency circuit, and optionally, the communication device further includes a storage unit
  • the storage unit may be, for example, a memory.
  • the communication device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing unit is coupled to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit to The communication device performs a sequence-based signal processing method in the first aspect or any possible design thereof.
  • the chip includes a processing unit and a transceiver unit, and the processing unit may be a processor, and the transceiver unit may be an input/output interface, a pin or a circuit on the chip.
  • the processing unit may execute computer-executed instructions stored by the memory unit to cause the chip to perform a sequence-based signal processing method in the first aspect or any possible design thereof.
  • the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, and the storage unit may also be a storage unit located outside the chip in the communication device (for example, Read-only memory (ROM) or other types of static storage devices (eg, random access memory (RAM)) that store static information and instructions.
  • ROM Read-only memory
  • RAM random access memory
  • the processor mentioned in the third aspect may be a central processing unit (CPU), a microprocessor or an application specific integrated circuit (ASIC), or may be one or more for controlling A program-implemented integrated circuit on the one hand or any of its possible designed sequence-based signal processing methods.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • a fourth aspect of the embodiments of the present application provides a signal processing apparatus, which may be a communication device, or a chip in a communication device, the communication device or the chip having the second aspect or The functionality of a sequence-based signal processing method in any possible design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the communication device includes: a processing unit and a transceiver unit, the processing unit may be a processor, the transceiver unit may be a transceiver, the transceiver includes a radio frequency circuit, and optionally, the communication device further includes a storage unit
  • the storage unit may be, for example, a memory.
  • the communication device includes a storage unit, the storage unit is configured to store a computer execution instruction, the processing unit is coupled to the storage unit, and the processing unit executes a computer execution instruction stored by the storage unit to The communication device performs a sequence-based signal processing method in the second aspect or any possible design thereof.
  • the chip includes a processing unit and a transceiver unit, and the processing unit may be a processor, and the transceiver unit may be an input/output interface, a pin or a circuit on the chip.
  • the processing unit may execute computer-executed instructions stored by the memory unit to cause the chip to perform a sequence-based signal processing method in the second aspect or any possible design thereof.
  • the storage unit may be a storage unit (for example, a register, a cache, etc.) in the chip, and the storage unit may also be a storage unit located outside the chip in the communication device (for example, Read-only memory (ROM) or other types of static storage devices (eg, random access memory (RAM)) that store static information and instructions.
  • ROM Read-only memory
  • RAM random access memory
  • the processor mentioned in the fourth aspect may be a central processing unit (CPU), a microprocessor or an application specific integrated circuit (ASIC), or may be one or more for controlling A program-implemented integrated circuit of two aspects or any of its possible designed sequence-based signal processing methods.
  • CPU central processing unit
  • ASIC application specific integrated circuit
  • a fifth aspect of the present application provides a communication system, which includes the communication device provided by the third aspect of the embodiment of the present application, and the communication device provided by the fourth aspect of the embodiment of the present application.
  • a sixth aspect of the embodiments of the present application provides a computer readable storage medium for storing computer instructions, when executed on a computer, causing a computer to perform the first aspect or the second aspect provided by the embodiments of the present application. Sequence signal processing method.
  • a seventh aspect of the embodiments of the present application provides a computer program product comprising instructions, when executed on a computer, causing a computer to perform the sequence-based signal processing method provided by the first aspect or the second aspect of the embodiments of the present application .
  • An eighth aspect of the embodiments of the present application provides a chip, the chip comprising an input interface, an output interface, at least one memory, and at least one processor, the at least one memory for storing code, the at least one processor for The code in the memory is executed, and when the code is executed, the processor implements the sequence-based signal processing method provided by the first aspect or the second aspect of the embodiments of the present application.
  • the sequence includes N elements of the sequence ⁇ f n ⁇ , f n refers to the elements in ⁇ f n ⁇ of the sequence, the determined sequence ⁇ f n ⁇ is a sequence satisfies a preset condition, then the sequence ⁇ f n ⁇ is mapped to the N subcarriers, generating The first signal is sent.
  • the sequence determined above it is possible to maintain low cross-correlation between sequences while transmitting signals using PUCCH while maintaining a lower PAPR value and CM value, thereby satisfying a communication application environment in which signals are transmitted using PUCCH.
  • FIG. 1 is a schematic flowchart of a sequence-based signal transmission process according to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a terminal device determining sequence ⁇ f n ⁇ according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of generating and transmitting a first signal by a terminal device according to an embodiment of the present disclosure
  • 4a and 4b are schematic diagrams of a sequence ⁇ f n ⁇ including N elements mapped to N subcarriers according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of processing a first signal by a network device according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a communication system according to an embodiment of the present application.
  • the embodiment of the present application provides a sequence-based signal processing method, a related device, and a communication system.
  • a sequence used to satisfy a PUCCH transmission signal By determining a sequence used to satisfy a PUCCH transmission signal, a low cross-correlation between sequences can be maintained while transmitting signals using PUCCH while maintaining The lower PAPR value and CM value satisfy the communication application environment in which the signal is transmitted using the PUCCH.
  • PUCCH can be supported to transmit UCI and DMRS.
  • the PUCCH is transmitted in a sequence modulation manner. That is, on all OFDM symbols transmitting UCI, the signal to be transmitted is modulated onto a computer generated sequence (CGS).
  • CGS computer generated sequence
  • PUCCH is also used for cell boundaries. For users at the cell boundary, the screening of CGS also needs to consider the cross-correlation between sequences.
  • the first cell and the second cell are mutually adjacent cells. If the cross-correlation between the first sequence used by the first cell and the second sequence used by the second cell is high, the boundary of the first cell may cause the base station of the second cell to receive the signal when transmitting the signal by using the PUCCH.
  • the interference of the PUCCH transmitted by the user equipment in a cell causes the reception performance of the PUCCH to decrease. Therefore, when screening CGS, it is necessary to determine a sequence with low cross-correlation between sequences.
  • the PUCCH can maintain a lower PAPR value and a CM value when transmitting UCI and DMRS, while Ability to maintain low cross-correlation between sequences.
  • the embodiment of the present application provides a specific implementation process of sequence-based signal processing, which is described in detail through the following embodiments.
  • sequence-based signal processing is mainly described from a receiving side and a transmitting side in a communication system or a communication application environment.
  • the receiving side may be a network device, and the sending side may be a terminal device; or the receiving side may be a terminal device, and the sending side may be a network side.
  • the description is made by taking the receiving side as the network device and the transmitting side as the terminal device as an example, but the present invention is not limited thereto.
  • the terminal device involved in the embodiment of the present application may be a user equipment.
  • the user equipment can be a wired device or a wireless device.
  • the wireless device may be a handheld device having a wireless connection function, or another processing device connected to the wireless modem, and a mobile terminal that communicates with one or more core networks via the wireless access network.
  • the wireless terminal can be a mobile phone, a mobile phone, a computer, a tablet, a personal digital assistant (PDA), a mobile internet device (MID), a wearable device, an e-book reader, and the like.
  • the wireless terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the wireless terminal can be a mobile station or an access point.
  • the network device involved in the embodiment of the present application may be a base station.
  • the base station may include various forms of macro base stations, micro base stations, relay stations, access point base station controllers, transmission and reception points, and the like. In systems using different radio access technologies, the specific name of the base station may vary.
  • a schematic flowchart of a sequence-based signal processing method disclosed in an embodiment of the present application includes:
  • the terminal device determines a sequence ⁇ f n ⁇ including N elements.
  • N is a positive integer greater than 1, and may be, for example, 6, 18 or 24.
  • the terminal device determines a sequence ⁇ f n ⁇ including N elements after entering the network.
  • the network device determines the sequence ⁇ x n ⁇ and configures it to the terminal device, and the terminal device determines the sequence containing the N elements ⁇ f n ⁇ based on the sequence ⁇ x n ⁇ . .
  • f n means the element of a sequence ⁇ f n ⁇ is determined sequence ⁇ f n ⁇ is a sequence meets a preset condition.
  • n is an integer, and n is 0 to N-1.
  • A is a non-zero complex number.
  • a is a real number.
  • Exp(2 ⁇ j ⁇ a ⁇ n) represents e 2 ⁇ j ⁇ a ⁇ n .
  • Sequence of elements s n ⁇ s n ⁇ consisting of an equivalent sequence is one of a first set of one sequence or sequences of a first set of the sequence, or one sequence of the second set or sequence One of the equivalent sequences of the sequences in the second set of sequences, or one of the sequences in the set of third sequences or one of the equivalent sequences of the sequences in the set of third sequences.
  • the sequence length in the first sequence set is 18, and the sequence in the first sequence set includes the sequence in sequence set 1A and/or the sequence in sequence set 1B.
  • sequence in Sequence Set 1A includes some or all of the following 208 sequences, and the PAPR of ⁇ f n ⁇ corresponding to these sequences and their equivalent sequences are both less than 2.6 dB:
  • sequence in Sequence Set 1B includes some or all of the following 388 sequences, and the sequence of the sequence ⁇ f n ⁇ corresponding to its equivalent sequence has a PAPR greater than 2.6 dB but less than 2.7 Db:
  • the second sequence of sequence length 24 is set, the second set the sequence and their equivalents sequence corresponding to a sequence ⁇ f n ⁇ is less than 2.8dB PAPR, the second sequence comprises the sequence set item at least One: sequence in sequence set 2A, sequence in sequence set 2B, sequence in sequence set 2C.
  • the sequence determined by the sequence in sequence set 2C ⁇ f n ⁇ has a PAPR of less than 2.45 dB.
  • sequence in Sequence Set 2A includes some or all of the following 195 sequences:
  • sequence in Sequence Set 2B includes some or all of the following 88 sequences with a PAPR less than 2.6 dB:
  • sequence in the set of sequences 2C includes some or all of the following sequences:
  • the sequence in the third sequence set includes at least one of the following: a sequence in sequence set 3A, a sequence in sequence set 3B, and a sequence in sequence set 3C.
  • the sequence in Sequence Set 3A includes some or all of the following sequences:
  • sequence in Sequence Set 3B includes some or all of the following sequences:
  • Sequences in Sequence Set 3C include some or all of the following sequences:
  • the PAPR of the sequence ⁇ f n ⁇ corresponding to the sequence in the set 3A is less than 4.2597 dB
  • the cubic metric CM is less than 1.5140 dB
  • the sequence corresponding to the sequence in the set 3B ⁇ f n ⁇ has a PAPR less than 4.7 dB
  • the cubic metric CM is less than 2.4. dB.
  • the equivalent sequence of the sequence ⁇ s n ⁇ in each of the sequence sets referred to above may be represented by ⁇ q n ⁇ .
  • an optional sequence consisting of a u n ⁇ u n ⁇ comprising:
  • sequence ⁇ -3,3,1,-1,1,-1,-3,-1,3,-3,-3,-1,1,3,-3,3,3,-1, 3, -3, 3, -3, -3, -3 ⁇ are equivalent to the following 16 sequences:
  • an equivalent sequence of ⁇ s n ⁇ is ⁇ q n ⁇ , then the sequence And sequence The difference between them is a constant, or a constant and a cyclic shift transform, so the absolute value of the cyclic shift autocorrelation value of the two sequences has a maximum value of 1.
  • the process of determining the sequence ⁇ f n ⁇ including the N elements may be as shown in FIG. 2 .
  • the specific process is:
  • the terminal device determines the sequence ⁇ x n ⁇ and A.
  • the value of n is 0 to N-1.
  • A is a non-zero complex number.
  • the sequence ⁇ x n ⁇ may be stored by the terminal device, or may be configured by the network device to the terminal device, or may be calculated by the terminal device according to a predefined formula.
  • A has a value range of ⁇ 1, -1, j, -j ⁇ .
  • the terminal device maps a sequence ⁇ f n ⁇ including N elements to N subcarriers, generates a first signal, and sends the signal to the network device.
  • the execution of S102 mainly refers to that the N elements in the sequence ⁇ f n ⁇ configured by the terminal device are respectively mapped to N subcarriers, and the first signal is generated and sent to the network device.
  • the terminal maps the sequence ⁇ f n ⁇ of the N elements to the N subcarriers, generates a first signal, and sends the signal to the network device, as shown in FIG. 3, including:
  • the terminal device maps a sequence ⁇ f n ⁇ including N elements to N subcarriers to obtain a frequency domain signal of N points (that is, a frequency domain signal including N elements).
  • s denotes an index of the first subcarrier of the N subcarriers mapped by the sequence ⁇ f n ⁇ in the subcarriers in the communication system.
  • the terminal device maps the sequence ⁇ f n ⁇ of the N elements to consecutive N subcarriers.
  • the elements f 0 to f N-1 in the sequence ⁇ f n ⁇ are respectively mapped to N consecutive subcarriers, and the subcarrier labels are s+0, s+1, ..., s. +N-1.
  • the terminal device sequentially maps N elements in the sequence ⁇ f n ⁇ to N subcarriers in descending order of subcarriers. Among them, an element in a sequence ⁇ f n ⁇ is mapped to one frequency domain subcarrier.
  • the frequency domain subcarrier is the smallest unit of frequency domain resources used to carry data information.
  • the terminal device sequentially maps N elements in the sequence ⁇ f n ⁇ to N subcarriers in descending order of subcarriers. Mapping an element of the sequence ⁇ f n ⁇ to a subcarrier is to carry this element on this subcarrier. After the mapping, when the terminal device transmits data through the radio frequency, it is equivalent to transmitting the element on the subcarrier.
  • different terminal devices can occupy different subcarriers to transmit data.
  • the location of the plurality of subcarriers in which the N subcarriers exist in the communication system may be predefined or the network device is configured by signaling.
  • the N elements in the sequence ⁇ f n ⁇ may also be mapped to the equally spaced N subcarriers, respectively.
  • the interval between the N subcarriers is 1, and the N subcarriers are equally spaced in the frequency domain.
  • the interval of the subcarriers mapped by the elements f 0 to f N-1 in the sequence ⁇ f n ⁇ is 1 subcarrier. Specifically, it is mapped to N equally spaced subcarriers, and the subcarrier numbers are s+0, s+2, ..., s+2(N-1)
  • S302 Convert the frequency domain signal of the N point into a time domain signal by using (inverse fast Fourier transforming, IFFT), and add a cyclic prefix to the time domain signal to generate a first signal.
  • IFFT inverse fast Fourier transforming
  • the time domain signal obtained by the terminal device by using the generated N-point frequency domain signal by the IFFT is an OFDM symbol.
  • the terminal device sends the first signal through the radio frequency. That is, the terminal device transmits the first signal carrying the sequence ⁇ f n ⁇ on the N subcarriers.
  • the terminal device can transmit the first signal carrying the sequence ⁇ f n ⁇ on one OFDM symbol.
  • the first signal carrying the sequence ⁇ f n ⁇ may also be transmitted on multiple OFDM symbols.
  • the first signal is a reference signal.
  • the first signal may be UCI and DMRS. It can also be an acknowledgement (ACK) message, or a negative acknowledgement (NACK) message, or an uplink schedule request (SR) message.
  • ACK acknowledgement
  • NACK negative acknowledgement
  • SR uplink schedule request
  • the embodiment of the present application is not limited to including the above information for the first signal.
  • the first signal is a signal for carrying communication information.
  • the carrying manner of the communication information may be carried by means of sequence selection, or may be carried by means of sequence modulation, but is not limited thereto.
  • the sequence is selected by assigning 2 n orthogonal sequences to one terminal device.
  • This 2 n orthogonal sequences may be a 2 n cycles shifted root sequence, which 2 n orthogonal sequences capable of carrying n-bit information.
  • the four sequences labeled 0, 1, 2, and 3. Wherein, 00 corresponds to sequence 0, 01 corresponds to sequence 1, 10 corresponds to sequence ⁇ 2 ⁇ , and 11 corresponds to sequence 3, such that four sequences can carry 2-bit information.
  • the sequence modulation is performed by assigning one sequence to a user and generating modulation symbols for the information that the user needs to transmit.
  • the modulation symbols include, but are not limited to, BPSK symbols, QPSK symbols, 8QAM symbols, 16QAM symbols, and the like.
  • the modulation symbol is multiplied by the sequence to generate an actual transmission sequence.
  • a BPSK match may be 1 or -1.
  • the transmitted sequence may be ⁇ f n ⁇ or ⁇ -f n ⁇ .
  • the terminal device in the network, and by A sequence ⁇ x n ⁇ is determined network device configuration comprises a sequence ⁇ f n ⁇ N elements.
  • A can be a modulation symbol.
  • one channel of data information bits or control information bits is modulated to obtain A.
  • A is carried on the N elements contained in the sequence ⁇ f n ⁇ , and A does not change with the change of n.
  • A is a constant.
  • A 1.
  • A can be a symbol known to both terminal devices and network devices.
  • A can also be expressed as amplitude.
  • A is a constant in one transmission time unit does not mean that A is fixed.
  • A may be changed.
  • the network device receives the first signal carried on the N subcarriers, and acquires N elements in the sequence ⁇ f n ⁇ .
  • the first signal is generated by mapping N elements to N subcarriers by a sequence ⁇ f n ⁇ including N elements.
  • sequence ⁇ f n ⁇ For a detailed description of the sequence ⁇ f n ⁇ , reference may be made to the corresponding descriptions in the above S101 and S102, and details are not described herein again.
  • Step S103 is performed.
  • the process of the network device receiving the first signal carried on the N subcarriers is: acquiring a time domain signal and de-circulating the prefix. Then, the FFT of the M point is performed on the signal of the de-cyclic prefix, and M is greater than or equal to N, and the frequency domain signal of the N point is obtained. Then, the terminal device receiving a first carrier signal on the N subcarriers, the signal comprising a first sequence ⁇ f n ⁇ N elements. For example, the receiving device receives signals on N subcarriers at a position in a subcarrier of the communication system according to a predefined or base station configured N subcarriers.
  • the PUCCH is sent by using the configured sequence ⁇ f n ⁇ , and the network device receives the PUCCH by using the sequence ⁇ f n ⁇ configured to the terminal device.
  • the network device processes the first signal according to the N elements in the sequence ⁇ f n ⁇ .
  • a schematic diagram of a processing procedure of the first signal by the network device obtains all possible sequences according to traversing the locally stored sequence ⁇ f′ n ⁇ .
  • the acquired sequence ⁇ f n ⁇ is processed separately from all possible sequences of the sequence ⁇ f' n ⁇ and subjected to maximum likelihood comparison to obtain data transmitted by the terminal device.
  • the combination of values for the two-bit information is ⁇ (0, 0), (0, 1), (1, 0), (1, 1) ⁇ .
  • the obtained sequence ⁇ f' n ⁇ is the sequence ⁇ f' 1, n ⁇
  • the two-bit information is (0, 1)
  • the obtained sequence is obtained.
  • ⁇ f' n ⁇ is the sequence ⁇ f' 2,n ⁇ .
  • the obtained sequence ⁇ f' n ⁇ is the sequence ⁇ f' 3,n ⁇ when the two-bit information is At (1, 1)
  • the resulting sequence ⁇ f' n ⁇ is the sequence ⁇ f' 4, n ⁇ .
  • the sequence ⁇ f n ⁇ is correlated with ⁇ f' 1, n ⁇ , ⁇ f' 2, n ⁇ , ⁇ f' 3, n ⁇ , ⁇ f' 4, n ⁇ , respectively, to obtain four correlation values.
  • the value of the two-bit information corresponding to the maximum correlation value is the data acquired by the network device. For example, the maximum correlation value is obtained by correlating the sequence ⁇ f n ⁇ with ⁇ f' 1, n ⁇ , and the two-bit information is (0, 0).
  • a sequence-based signal processing method disclosed in the embodiment of the present application determines a sequence that satisfies a PUCCH transmission signal, the sequence is a sequence containing N elements ⁇ f n ⁇ , and f n refers to a sequence ⁇ f n ⁇
  • A is a non-zero complex number
  • a is a real number
  • element u is zero complex
  • the sequence of elements s n ⁇ s n ⁇ consisting of an equivalent sequence is one of a sequence of one or a first set of a first sequence of the sequence set, or set of sequences in the second sequence
  • One of the equivalent sequences of the sequence in one or the second sequence set, and then N elements in the sequence ⁇ f n ⁇ are respectively mapped onto the N subcarriers to generate a first signal and transmit.
  • the signal processing sequence of sequence-based methods, determined in S101 includes the sequence of N elements ⁇ f n ⁇ sequences involved ⁇ s n ⁇ , the composition of the elements s n further, embodiments of the present disclosure based on the above embodiment of the application ⁇ s n ⁇ may be one of the sequences in the fourth sequence set or an equivalent sequence of the sequence in the fourth sequence set.
  • the fourth sequence corresponding to the sequence set sequence ⁇ f n ⁇ peak to average ratio is less than 2.8dB, any of the sequences of any sequence and the fourth sequence set ⁇ f n ⁇ corresponding to a cyclic shift of
  • the cross-correlation value between the bit and any cyclic shift of another sequence is less than 0.52.
  • the PAPR is much larger than 3 dB
  • the cross-correlation value distribution is generally larger than the cross-correlation value distribution of the sequences in the fourth sequence set.
  • the sequence in the fourth set of sequences includes at least one of the following: a sequence in sequence set 4A, a sequence in sequence set 4B, a sequence in sequence set 4C.
  • sequence in Sequence Set 4A includes some or all of the following 30 sequences of length 18, which have a PAPR of less than 3.0 dB and a cross-correlation value of less than 0.543:
  • the sequence set 4B includes the following 31 sequences of length 18, wherein the sequence corresponding to the sequence in the sequence set ⁇ f n ⁇ has a peak-to-average ratio of less than 2.8 dB, and the sequence corresponding to any sequence in the sequence set ⁇ f n
  • the cross-correlation value between any cyclic shift of ⁇ and any cyclic shift of the sequence ⁇ f n ⁇ corresponding to another sequence is less than 0.54:
  • the sequence in the sequence set 4C includes part or all of the sequence in which the peak-to-average ratio of the sequence corresponding to the sequence is less than 2.8 dB, and any sequence corresponding to any sequence in the sequence set
  • the cross-correlation value between the cyclic shift and any cyclic shift of the corresponding sequence of another sequence is less than 0.56:
  • the signal processing sequence of sequence-based methods, determined in S101 includes the sequence of N elements ⁇ f n ⁇ sequences involved ⁇ s n ⁇ , the composition of the elements s n further, embodiments of the present disclosure based on the above embodiment of the application
  • the set of ⁇ s n ⁇ may include part or all of the sequence in the fifth sequence set or part or all of the equivalent sequence of the sequence in the fifth sequence set.
  • the sequence in the fifth sequence set includes at least one of the following: sequence in sequence set 5A, sequence in sequence set 5B, sequence in sequence set 5C, sequence in sequence set 5D, sequence set 5E the sequence of.
  • sequence in sequence set 5A sequence in sequence set 5A
  • sequence in sequence set 5B sequence in sequence set 5C
  • sequence in sequence set 5D sequence set 5E the sequence of.
  • the cross-correlation of the sequence ⁇ f n ⁇ determined by the sequence in the sequence set 5D is less than 0.49
  • the cross-correlation of the sequence ⁇ f n ⁇ determined by the sequence in the sequence 5E is less than 0.48.
  • the sequence in sequence set 5A includes some or all of the following 30 sequences of length 24, and the sequence corresponding to the sequence in the sequence set ⁇ f n ⁇ has a peak-to-average ratio of less than 2.8 dB and a cross-correlation value of less than 0.53:
  • the sequence in the sequence set 5B includes some or all of the following 30 sequences of length 24, and the sequence corresponding to the sequence in the sequence set ⁇ f n ⁇ has a peak-to-average ratio of less than 2.8 dB and a cross-correlation value of less than 0.5:
  • the sequence in the set sequence 5C includes some or all of the following 24 sequences, and the sequence corresponding to the sequence in the sequence set ⁇ f n ⁇ has a peak-to-average ratio of less than 2.8 dB and a cross-correlation value of less than 0.482:
  • sequence in sequence set 5D includes some or all of the following sequences:
  • sequence in sequence set 5E includes some or all of the following sequences:
  • the set consisting of the sequence ⁇ s n ⁇ consisting of the elements s n is part or all of the sequence in the sixth sequence set, or part or all of the equivalent sequence of the sequence in the sixth sequence set.
  • the peak-to-average ratio of the sequences in the sixth sequence set is less than 5.5 dB, and any cyclic shift of the sequence ⁇ f n ⁇ corresponding to any one of the sixth sequence sets corresponds to another sequence ⁇ f n ⁇
  • the cross-correlation value between any cyclic shifts is less than 0.75 or 0.917 or 0.9.
  • sequence of the sixth sequence set includes some or all of the following sequences:
  • the last three sequences in the sixth sequence set are the sequences in the LTE standard specification:
  • the other sequences are the sequences in the sequence set A3.
  • sequence in the sixth sequence set includes at least one of the following: a sequence in sequence set 6A, a sequence in sequence set 6B, and a sequence in sequence set 6A includes a portion of the following sequence or All:
  • sequence in the sequence set 6A includes some or all of the following sequences
  • sequence in sequence set 6B includes some or all of the following sequences
  • the sequence corresponding to the sequence in sequence set 6A or 6B is less than 0.9597 dB and 4.7 dB, respectively, except for PAPR and CM, respectively, and the correlation values are less than 0.917 and 0.9, respectively.
  • the PAPR is lower in sequence and the CM value is also smaller.
  • the above sequence has been verified to have very small CM values.
  • the equivalent sequence of each sequence set involved above may be represented by ⁇ q n ⁇ .
  • an optional sequence consisting of a u n ⁇ u n ⁇ comprising:
  • a sequence-based signal processing method provided by an embodiment of the present application determines a sequence that satisfies a PUCCH transmission signal, the sequence is a sequence of N elements ⁇ f n ⁇ , and f n refers to a sequence ⁇ f n ⁇
  • the element, the determined sequence ⁇ f n ⁇ is a sequence satisfying a preset condition, and then N elements in the sequence ⁇ f n ⁇ are respectively mapped onto N subcarriers, and a first signal is generated for transmission.
  • the embodiment of the present application further discloses a signal processing apparatus and a communication system that perform the sequence-based signal processing method.
  • FIG. 6 is a schematic structural diagram of a sequence-based signal processing apparatus 600 disclosed in an embodiment of the present application.
  • the signal processing device 600 can be a communication device or a chip within the communication device.
  • the signal processing device 600 includes a processing unit 601 and a transceiving unit 602.
  • the processing unit 601 is further configured to: map the N elements in the sequence ⁇ f n ⁇ to the N subcarriers to generate a first signal.
  • the transceiver unit 602 is configured to: send the first signal.
  • the signal processing apparatus disclosed in the embodiments of the present application may also be directly implemented by hardware, a memory executed by a processor, or a combination of the two.
  • the signal processing apparatus 700 includes a processor 701 and a transceiver 703.
  • signal processing device 700 also includes a memory 702.
  • Processor 701 is coupled to memory 702 via a bus.
  • Processor 701 is coupled to transceiver 703 via a bus.
  • the processor 701 may be a central processing unit (CPU), a network processor (NP), an application-specific integrated circuit (ASIC), or a programmable logic device (PLD). ).
  • the PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or a general array logic (GAL).
  • the memory 702 may specifically be a content-addressable memory (CAM) or a random-access memory (RAM).
  • CAM can be a tri-state content addressing memory (TCAM).
  • the transceiver 703 can be a radio frequency circuit.
  • the transceiver 703 can be an input/output interface, a pin or a circuit on the chip.
  • the memory 702 can also be integrated in the processor 701. If memory 702 and processor 701 are mutually independent devices, memory 702 is coupled to processor 701, for example, memory 702 and processor 701 can communicate over a bus.
  • the transceiver 703 and the processor 701 can communicate via a bus, and the transceiver 703 can also be directly connected to the processor 701.
  • the memory 702 is configured to store an operation program, code or instruction of sequence-based signal processing.
  • the memory 702 includes an operating system and an application for storing operating procedures, code or instructions for sequence-based signal processing.
  • code or instruction stored in the memory 702 may complete the sequence device-based signal performed by the terminal device involved in FIGS.
  • the process of processing For the specific process, refer to the corresponding parts of the foregoing embodiment of the present application, and details are not described herein again.
  • FIG. 7 only shows a simplified design of the signal processing device 700.
  • the signal processing device 700 can include any number of transceivers, processors, memories, etc., and all of the signal processing devices 700 that can implement the embodiments of the present application are within the protection scope of the embodiments of the present application.
  • FIG. 8 is a schematic structural diagram of a sequence-based signal processing apparatus 800 disclosed in an embodiment of the present application.
  • the signal processing device 800 can be a communication device or a chip within the communication device.
  • the signal processing device 800 includes a transceiving unit 801 and a processing unit 802.
  • the transceiver unit 801 is configured to: receive the first signal carried on the N subcarriers.
  • the processing unit 802 is configured to: acquire a sequence ⁇ f n ⁇ of N elements, the first signal comprising N elements of a sequence ⁇ f n ⁇ are mapped to N elements to generate the N sub-carriers, f n meant that the said sequence of elements ⁇ f n ⁇ is the sequence ⁇ f n ⁇ is a sequence satisfies a preset condition.
  • the processing unit 802 is further configured to process the first signal according to the N elements in the sequence ⁇ f n ⁇ .
  • the signal processing apparatus disclosed in the embodiments of the present application may also be directly implemented by hardware, a memory executed by a processor, or a combination of the two.
  • the signal processing apparatus 900 includes a processor 901 and a transceiver 903.
  • the signal processing device 900 further includes a memory 902.
  • the processor 901 is coupled to the memory 902 via a bus.
  • the processor 901 is coupled to the transceiver 903 via a bus.
  • the processor 901 may specifically be a CPU, an NP, an ASIC, or a PLD.
  • the above PLD can be a CPLD, an FPGA, or a GAL.
  • the memory 902 may specifically be a CAM or a RAM.
  • the CAM can be a TCAM.
  • the transceiver 903 can be a radio frequency circuit.
  • the transceiver 903 can be an input/output interface, a pin or a circuit on the chip.
  • the memory 902 can also be integrated in the processor 901. If memory 902 and processor 901 are mutually independent devices, memory 902 is coupled to processor 901, for example, memory 902 and processor 901 can communicate over a bus.
  • the transceiver 903 and the processor 901 can communicate via a bus, and the transceiver 903 can also be directly connected to the processor 901.
  • the memory 902 is configured to store an operation program, code or instruction of sequence-based signal processing.
  • the memory 902 includes an operating system and an application for storing operating procedures, code or instructions for sequence based signal processing.
  • FIG. 9 only shows a simplified design of the signal processing device 900.
  • the signal processing device 900 can include any number of interfaces, processors, memories, etc., and all of the signal processing devices 900 that can implement the embodiments of the present application are within the protection scope of the embodiments of the present application.
  • FIG. 10 is a communication system 1000 according to an embodiment of the present application, including a first communication device 1001 and a second communication device 1002.
  • the first communication device 1001 is a device on the transmitting side
  • the second communication device 1002 is a device on the terminal side.
  • the first communication device 1001 is configured to determine a sequence ⁇ f n ⁇ including N elements, and map N elements in the sequence ⁇ f n ⁇ to N subcarriers respectively, generate a first signal and send the second signal to the second communication Device 1002.
  • the second communication device 1002 for receiving a first signal on a first communication device transmits N sub-carriers, obtaining a sequence of N elements ⁇ f n ⁇ , and based on the sequence of the N elements of the first ⁇ f n ⁇ A signal is processed.
  • the number of the first communication device 1001 and the second communication device 1002 is not limited.
  • the first communication device 1001 may be specifically the communication device disclosed in FIGS. 6 and 7.
  • it can be used to perform the corresponding operations performed by the terminal device in FIG. 1 to FIG. 5 in the embodiment of the present application.
  • the second communication device 1002 may be specifically the communication device disclosed in FIGS. 8 and 9.
  • it can be used to perform the corresponding operations performed by the network device in FIG. 1 to FIG. 5 in the embodiment of the present application.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

L'invention concerne un procédé et un appareil de traitement de signal basé sur une séquence. Le procédé consiste à : déterminer une séquence utilisée pour satisfaire un PUCCH transmettant un signal, la séquence étant une séquence {fn) comprenant N éléments, fn se référant à un élément dans la séquence {fn), et la séquence {fn) déterminée étant une séquence satisfaisant une condition prédéfinie; et ensuite mettre en correspondance respective les N éléments dans la séquence {fn} avec N sous-porteuses, et générer et envoyer un premier signal. Au moyen de la séquence déterminée, une faible interdépendance entre des séquences peut être maintenue lorsqu'un signal est transmis à l'aide d'un PUCCH, tandis qu'une valeur PAPR relativement faible et une valeur CM sont maintenues, satisfaisant ainsi un environnement d'application de communication dans lequel un PUCCH est utilisé pour transmettre un signal.
PCT/CN2018/096168 2017-09-08 2018-07-18 Procédé et appareil de traitement de signal basé sur une séquence WO2019047622A1 (fr)

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RU2020112246A RU2776782C2 (ru) 2017-09-08 2018-07-18 Устройство и способ обработки сигнала на основе последовательности
BR112020004558-6A BR112020004558A2 (pt) 2017-09-08 2018-07-18 método e aparelho de processamento de sinal baseado em sequência
CN202210840878.0A CN115208544B (zh) 2017-09-08 2018-07-18 基于序列的信号处理方法、终端设备、通信装置以及计算机可读存储介质
CA3075193A CA3075193C (fr) 2017-09-08 2018-07-18 Procede et appareil de traitement de signal base sur une sequence
EP20216979.3A EP3866354B8 (fr) 2017-09-08 2018-07-18 Procédé et appareil de traitement de signaux basés sur une séquence
CN201880058345.9A CN111434054B (zh) 2017-09-08 2018-07-18 基于序列的信号处理方法及装置
EP18853944.9A EP3598666B1 (fr) 2017-09-08 2018-07-18 Procédé et appareil de traitement de signal basé sur une séquence
JP2020514183A JP7217269B2 (ja) 2017-09-08 2018-07-18 系列に基づく信号処理方法および装置
EP23189656.4A EP4325785A3 (fr) 2017-09-08 2018-07-18 Procédé et appareil de traitement de signal basé sur une séquence
US16/248,527 US10827515B2 (en) 2017-09-08 2019-01-15 Sequence-based signal processing method and apparatus
US16/519,922 US10568120B2 (en) 2017-09-08 2019-07-23 Sequence-based signal processing method and apparatus
US16/746,652 US10764915B2 (en) 2017-09-08 2020-01-17 Sequence-based signal processing method and apparatus
US16/991,141 US11464032B2 (en) 2017-09-08 2020-08-12 Sequence-based signal processing method and apparatus
US17/940,824 US20230141169A1 (en) 2017-09-08 2022-09-08 Sequence-based signal processing method and apparatus
JP2022177554A JP7463477B2 (ja) 2017-09-08 2022-11-04 系列に基づく信号処理方法および装置

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