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WO2025118897A1 - Procédé de détermination et appareil associé - Google Patents

Procédé de détermination et appareil associé Download PDF

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Publication number
WO2025118897A1
WO2025118897A1 PCT/CN2024/129635 CN2024129635W WO2025118897A1 WO 2025118897 A1 WO2025118897 A1 WO 2025118897A1 CN 2024129635 W CN2024129635 W CN 2024129635W WO 2025118897 A1 WO2025118897 A1 WO 2025118897A1
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WO
WIPO (PCT)
Prior art keywords
sequence
parameter
pilot
communication device
parameter value
Prior art date
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PCT/CN2024/129635
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English (en)
Chinese (zh)
Inventor
张长
汪凡
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of WO2025118897A1 publication Critical patent/WO2025118897A1/fr
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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

Definitions

  • the present application relates to the field of communication technology, and in particular to a determination method and related devices.
  • the terminal device can use the Zadeoff-Chu (ZC) sequence to generate the pilot sequence. Specifically, the terminal device truncates or cyclically shifts the ZC sequence to obtain the pilot sequence.
  • ZC sequence has advantages in PAPR performance or CM performance, the ZC sequence has a small capacity and is difficult to meet the capacity requirements of the communication system.
  • the present application provides a determination method and a related device, which is used by a first communication device to determine a first candidate set and a second candidate set, wherein the first candidate set includes one or more values of a first parameter, and the second candidate set includes one or more values of a second parameter, and the first parameter and the second parameter are used together to determine an element in a first sequence, wherein the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first communication device determines one or more parameter value combinations based on the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter.
  • the first aspect of the present application provides a determination method, which is performed by a first communication device.
  • the first communication device may be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module, or control unit in the device or apparatus shown above, and the present application does not limit it.
  • the method provided by the present application includes: the first communication device determines a first candidate set and a second candidate set, the first candidate set includes one or more values of a first parameter, the second candidate set includes one or more values of a second parameter, the first parameter and the second parameter are used together to determine the elements in the first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; the first communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter. It can be seen that the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first sequence can be used to generate a pilot sequence, thereby increasing the capacity of the pilot sequence to meet the capacity requirements of the communication system. Further, the first communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set. It is convenient for the first communication device to use a suitable combination of parameter values to generate a first sequence, and to generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence.
  • the first sequence can also be used to generate a synchronization sequence or a scrambling sequence, which is beneficial to improve the relevant performance of the synchronization sequence and improve the capacity of the scrambling sequence. Furthermore, the relevant performance of the synchronization sequence or the scrambling sequence can be further improved through the above technical solution, and the application scenario of the present application is not specifically limited.
  • the second aspect of the present application provides a pilot sequence sending method, which is performed by a first communication device, and the first communication device can be a device or apparatus with a chip, or a device or apparatus with an integrated circuit, or a chip, chip system, module, or control unit in the device or apparatus shown above, and the specific application is not limited.
  • the method provided by the present application includes: the first communication device determines the value of the first parameter and the value of the second parameter, the value of the first parameter is the value of the first parameter in the target parameter value combination, the value of the second parameter is the value of the second parameter in the target parameter value combination, the target parameter value is one of one or more parameter value combinations, and the one or more parameter value combinations are determined according to the first candidate set and the second candidate set, the first candidate set includes one or more values of the first parameter, the second candidate set includes one or more values of the second parameter, the first parameter and the second parameter are used together to determine the elements in the first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; the first communication device generates a first sequence according to the value of the first parameter and the value of the second parameter; the first communication device generates a target pilot sequence according to the first sequence and sends the target pilot sequence.
  • the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first communication device generates a target pilot sequence based on the first sequence, thereby increasing the capacity of the target pilot sequence to meet the capacity requirements of the communication system.
  • the one or more parameters The number value combination is determined based on the first candidate set and the second candidate set, and the target parameter value is one of one or more parameter value combinations. It is beneficial to ensure the PAPR performance or CM performance of the target pilot sequence.
  • the first sequence can also be used to generate a synchronization sequence or a scrambling sequence, which is beneficial to improve the relevant performance of the synchronization sequence and improve the capacity of the scrambling sequence.
  • the relevant performance of the synchronization sequence or the scrambling sequence can be further improved through the above technical solution, and the application scenario of the present application is not specifically limited.
  • the first parameter and the second parameter are used together to determine the phase of an element in a first sequence.
  • the first sequence may be a constant modulus sequence, and therefore one or more parameter value combinations are selected through the technical solution of the present application.
  • the one or more parameter value combinations may be used for one or more different first sequences, and different first sequences mainly have different phases of elements in the first sequence. This is conducive to ensuring the PAPR performance or CM performance of the pilot sequence generated based on the first sequence.
  • the first parameter is the coefficient of the x-order term about the position index variable n used to generate the phase in the first sequence
  • the second parameter is the coefficient of the y-order term about the position index variable n used to generate the phase in the first sequence
  • x is an integer greater than or equal to 2
  • y is an integer greater than or equal to 2
  • x is greater than y
  • the first sequence is a z-order index sequence
  • z is an integer greater than or equal to 3.
  • the first parameter and the second parameter can both be coefficients of multiple terms in the first sequence, so that the first communication device can select one or more parameter value combinations through the scheme shown in the first aspect above.
  • the one or more parameter value combinations can be used for one or more different first sequences, and the different first sequences are mainly different in the phases of the elements in the first sequence.
  • the first communication device is implemented to generate a corresponding first sequence using a suitable parameter value combination, and generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence.
  • each parameter value combination satisfies the first target condition.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance or CM performance of the pilot sequence generated by the first communication device based on the first sequence.
  • each parameter value combination satisfies the first target condition including: among all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set, Q parameter value combinations corresponding to the Q values that make the value of the objective function the smallest, where Q is an integer greater than or equal to 1.
  • Q is an integer greater than or equal to 1.
  • the objective function is a function related to PAPR or a function related to CM.
  • one or more parameter value combinations are selected with the goal of minimizing PAPR performance or CM performance.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance or CM performance of the pilot sequence generated by the first communication device based on the first sequence.
  • the objective function is a function used to characterize PAPR or CM.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is the base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L
  • L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n).
  • the specific form of the objective function is shown according to the definition of PAPR, which is conducive to the implementation of the solution, so as to select one or more parameter value combinations with the goal of minimizing PAPR performance.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance of the pilot sequence generated by the first communication device based on the first sequence.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is a base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L, and L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance of the pilot sequence generated by the first communication device based on the first sequence.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is a base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L, and L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n)
  • f c is the frequency of the carrier to which the pilot sequence is mapped
  • f o is the center frequency of the carrier.
  • the specific form of the objective function is shown according to the definition of PAPR, which is conducive to the implementation of the scheme, so as to select one or more parameter value combinations with the goal of minimizing PAPR performance.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance of the pilot sequence generated by the first communication device based on the first sequence.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is a base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L, and L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • fc is the frequency of the carrier to which the pilot sequence is mapped
  • fo is the center frequency of the carrier.
  • the specific form of the objective function is shown according to the definition of PAPR, which is conducive to the implementation of the scheme, thereby realizing the selection of one or more parameter value combinations with the goal of minimizing PAPR performance.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the PAPR performance of the pilot sequence generated by the first communication device based on the first sequence.
  • the objective function is expressed as:
  • s o (n) z(n)
  • z(n) is the first sequence
  • s(t) is the time domain signal generated by using s o (n)
  • dB and C are constants
  • rms(u) represents the root mean square of u;
  • s o (n) is the first sequence
  • z(n) is the base sequence
  • the position index in the base sequence becomes
  • n belongs to the interval [0, P-1], P ⁇ L, L is the length of the pilot sequence; or, s(t) is a time domain signal generated using s o (n); RCM ref
  • the specific form of the objective function is shown according to the definition of CM, which is conducive to the implementation of the scheme, thereby realizing the selection of one or more parameter value combinations with the goal of minimizing CM performance.
  • the parameter value combination can be used to determine the first sequence, which is conducive to ensuring the CM performance of the pilot sequence generated by the first communication device based on the first sequence.
  • t(nP) is expressed as (t(0), t(1), ..., t(LP-1)), and (t(0), t(1), ..., t(LP-1)) is a set of (t(0), t(1), ..., t(LP-1)) that makes the objective function achieve the minimum value among all values of (t(0), t(1), ..., t(LP-1)).
  • s o (n) is obtained by length modulation based on z(n), and the first communication device can determine the redundant extension part in s o (n) through this implementation, thereby further ensuring the PARA performance or CM performance of the pilot sequence generated based on the first sequence.
  • the first parameter is a in z(n)
  • the second parameter is b in z(n)
  • N is the period of the cubic term about the position index variable n in z(n) for generating the phase
  • M is the period of the quadratic term about the position index variable n in z(n) for generating the phase
  • K or K′ is determined according to the number of cyclic shifts corresponding to the pilot sequence.
  • K or K′ is also determined according to N and M.
  • the method further includes: the first communication device receives first indication information, where the first indication information is used to indicate a target function, so that the first communication device selects one or more parameter value combinations based on the target function.
  • the first indication information is carried in downlink control information (DCI), media access control control element (MAC CE), or radio resource control (RRC) message.
  • DCI downlink control information
  • MAC CE media access control control element
  • RRC radio resource control
  • one or more parameter value combinations are used to generate a pilot sequence set, the pilot sequence set includes one or more pilot sequences, and one pilot sequence corresponds to one parameter value combination.
  • the first communication device obtains one or more pilot sequences, guarantees the PAPR performance or CM performance of the pilot sequence, and also guarantees the correlation performance between the pilot sequences, avoiding pilot interference between multiple users.
  • the method further includes: the first communication device receives second indication information, and the second indication information is used to indicate a parameter value combination in one or more parameter value combinations. It is convenient for the first communication device to generate a first sequence based on the parameter value combination, and then generate a pilot sequence based on the first sequence. Thereby, the capacity of the pilot sequence is guaranteed, and the PAPR performance or CM performance of the pilot sequence is further guaranteed.
  • the method further includes: the first communication device generates a first sequence according to a parameter value combination indicated by the second indication information; the first communication device generates a target pilot sequence according to the first sequence; and the first communication device sends the target pilot sequence.
  • the capacity of the pilot sequence is guaranteed.
  • the PAPR performance or CM performance of the pilot sequence is further guaranteed.
  • the second indication information is used to indicate the index of the parameter value combination; or the second indication information is used to indicate the value of the first parameter and the value of the second parameter in the parameter value combination.
  • the implementation method in which the second indication information indicates the index of the parameter value combination is conducive to reducing the indication overhead.
  • the method further includes: the first communication device generates a pilot sequence set according to one or more parameter value combinations and a first sequence, the pilot sequence set includes one or more pilot sequences, and one pilot sequence corresponds to one parameter value combination.
  • the first communication device obtains one or more pilot sequences, guarantees the PAPR performance or CM performance of the pilot sequence, and also guarantees the correlation performance between the pilot sequences, avoiding pilot interference between multiple users.
  • the pilot sequences in the pilot sequence set are sorted in ascending order or in descending order according to the values corresponding to the objective function under the parameter value combination corresponding to the pilot sequence; or, the pilot sequences in the pilot sequence set are sorted in ascending order or in descending order according to the values of the first parameter in the parameter value combination corresponding to the pilot sequence, and for the pilot sequences corresponding to the parameter value combination with the same value of the first parameter, the values of the second parameter in the parameter value combination with the same value of the first parameter are sorted in ascending order or in descending order; or, the pilot sequences in the pilot sequence set are sorted in ascending order or in descending order according to the values of the second parameter in the parameter value combination corresponding to the pilot sequence, and for the pilot sequences corresponding to the parameter value combination with the same value of the second parameter, the values of the first parameter in the parameter value combination with the same value of the second parameter are sorted in ascending order or in descending order.
  • the method further includes: the first communication device receives third indication information, the third indication information is used to indicate a target pilot sequence, and the target pilot sequence is a pilot sequence in a pilot sequence set.
  • the first communication device sends the target pilot sequence.
  • the capacity of the target pilot sequence is guaranteed, and the PAPR performance or CM performance of the target pilot sequence is further guaranteed.
  • the method further includes: the first communication device sends a target pilot sequence, thereby ensuring the capacity of the target pilot sequence sent by the first communication device, and further ensuring the PAPR performance or CM performance of the target pilot sequence.
  • the third indication information is used to indicate the index of the target pilot sequence, thereby facilitating reducing indication overhead.
  • the third indication information is carried in a DCI, MAC CE or RRC message.
  • the value of the first parameter in the first candidate set belongs to the interval (0, N-1], N is the maximum prime number not greater than L or the minimum prime number not less than L, and x is an integer greater than or equal to 2.
  • N is the period of the x-order term of the position index variable n used to generate the phase in the first sequence.
  • N is a prime number, and the mutual correlation performance or mutual ambiguity performance between any two first sequences containing different x-order terms is good.
  • the value of the second parameter in the second candidate set belongs to the interval (0, M-1], or the interval (0, N-1], or the interval (0, m-1], m is a prime number
  • M is the period of the y-order term of the position index variable n used to generate the phase in the first sequence
  • N is the period of the x-order term of the position index variable n used to generate the phase in the first sequence
  • x is an integer greater than or equal to 2
  • y is an integer greater than or equal to 2
  • x is greater than y
  • N is the maximum prime number not greater than L or the minimum prime number not less than L.
  • the first communication device determines the value of the first parameter and the value of the second parameter, including: the first communication device receives fourth indication information from the second communication device, and the fourth indication information is used to indicate a target parameter value combination.
  • the first communication device receives fourth indication information from the second communication device, and the fourth indication information is used to indicate a target parameter value combination.
  • This facilitates the first communication device to generate a first sequence according to the target parameter value combination, and to generate a target pilot sequence based on the first sequence. This improves the capacity of the target pilot sequence and ensures the PAPR performance or CM performance of the target pilot sequence.
  • a third aspect of the present application provides a first communication device, including:
  • a processing module is used to determine a first candidate set and a second candidate set, the first candidate set includes one or more values of a first parameter, the second candidate set includes one or more values of a second parameter, the first parameter and the second parameter are used together to determine elements in a first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; one or more parameter value combinations are determined according to the first candidate set and the second candidate set, each parameter value combination includes a value of the first parameter and a value of the second parameter.
  • a fourth aspect of the present application provides a first communication device, including:
  • a processing module used to determine a value of a first parameter and a value of a second parameter, the value of the first parameter is the value of the first parameter in a target parameter value combination, the value of the second parameter is the value of the second parameter in a target parameter value combination, the target parameter value is one of one or more parameter value combinations, the one or more parameter value combinations are determined according to a first candidate set and a second candidate set, the first candidate set includes one or more values of the first parameter, the second candidate set includes one or more values of the second parameter, the first parameter and the second parameter are used together to determine an element in a first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; generate a first sequence according to the value of the first parameter and the value of the second parameter; generate a target pilot sequence according to the first sequence;
  • the transceiver module is used to send the target pilot sequence.
  • the first parameter and the second parameter are used together to determine the phase of the element in the first sequence.
  • the first parameter is the coefficient of the x-order term of the position index variable n used to generate the phase in the first sequence
  • the second parameter is the coefficient of the y-order term of the position index variable n used to generate the phase in the first sequence
  • x is an integer greater than or equal to 2
  • y is an integer greater than or equal to 2
  • x is greater than y.
  • each parameter value group The first objective condition is met.
  • each parameter value combination that satisfies the first target condition includes: among all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set, there are Q parameter value combinations corresponding to the first Q values that make the value of the objective function the smallest, where Q is an integer greater than or equal to 1.
  • the objective function is a function related to PAPR or a function related to CM.
  • the objective function is a function used to characterize PAPR or CM.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is the base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L
  • L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n).
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is a base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L
  • L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the objective function is expressed as:
  • s o (n) is the first sequence
  • z(n) is the base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L
  • L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n)
  • f c is the frequency of the carrier to which the pilot sequence is mapped
  • f o is the center frequency of the carrier.
  • the objective function is expressed as:
  • the frequency of the carrier mapped to, f o is the center frequency of the carrier;
  • s o (n) is the first sequence
  • z(n) is the base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L
  • L is the length of the pilot sequence
  • C is a positive number
  • D is a positive number
  • N is the largest prime number not greater than L or the smallest prime number not less than L
  • fc is the frequency of the carrier to which the pilot sequence is mapped
  • fo is the center frequency of the carrier.
  • the objective function is expressed as:
  • s o (n) z(n)
  • z(n) is the first sequence
  • s(t) is the time domain signal generated by using s o (n)
  • dB and C are constants
  • rms(u) represents the root mean square of u;
  • s o (n) is the first sequence
  • z(n) is a base sequence
  • the position index variable n in the base sequence belongs to the interval [0, P-1], P ⁇ L, and L is the length of the pilot sequence
  • s(t) is the time domain signal generated using s o (n)
  • dB and C are constants
  • rms(u) represents the root mean square of u.
  • t(n-P) is expressed as (t(0), t(1),..., t(L-P-1)), and (t(0), t(1),..., t(L-P-1)) is a set of (t(0), t(1),..., t(L-P-1)) that makes the objective function achieve the minimum value among all values of (t(0), t(1),..., t(L-P-1)).
  • the first parameter is a in z(n)
  • the second parameter is b in z(n)
  • N is the period of the cubic term about the position index variable n in z(n) for generating the phase
  • M is the period of the quadratic term about the position index variable n in z(n) for generating the phase
  • K or K′ is determined according to the number of cyclic shifts corresponding to the pilot sequence.
  • K or K′ is also determined according to N and M.
  • the first communication device also includes a transceiver module, where the transceiver module is used to receive first indication information, where the first indication information is used to indicate the target function.
  • the transceiver module is further used to receive first indication information, where the first indication information is used to indicate the target function.
  • the first indication information is carried in a DCI, MAC CE, or RRC message.
  • one or more parameter value combinations are used to generate a pilot sequence set, where the pilot sequence set includes one or more pilot sequences, and one pilot sequence corresponds to one parameter value combination.
  • the first communication device also includes a transceiver module, the transceiver module is used to receive second indication information, and the second indication information is used to indicate a parameter value combination among one or more parameter value combinations.
  • the processing module is further used to: generate a first sequence according to a parameter value combination indicated by the second indication information; generate a target pilot sequence according to the first sequence;
  • the first communication device also includes a transceiver module, which is used to send a target pilot sequence.
  • the second indication information is used to indicate an index of a parameter value combination; or, the second indication information is used to indicate a value of a first parameter and a value of a second parameter in the parameter value combination.
  • the processing module is also used to: generate a pilot sequence set according to one or more parameter value combinations and a first sequence, the pilot sequence set including one or more pilot sequences, and one pilot sequence corresponds to one parameter value combination.
  • the pilot sequences in the pilot sequence set are sorted in an ascending order or a descending order according to the values corresponding to the objective function under the parameter value combination corresponding to the pilot sequence; or, the pilot sequences in the pilot sequence set are sorted in an ascending order or a descending order according to the values of the first parameter in the parameter value combination corresponding to the pilot sequence.
  • the pilot sequences in the pilot sequence set are sorted in the order of the values of the second parameter in the parameter value combination corresponding to the pilot sequences, and the pilot sequences corresponding to the parameter value combination having the same value of the first parameter are sorted in the order of the values of the second parameter in the parameter value combination having the same value of the first parameter from small to large or from large to small; or, the pilot sequences in the pilot sequence set are sorted in the order of the values of the second parameter in the parameter value combination corresponding to the pilot sequences from small to large or from large to small, and the pilot sequences corresponding to the parameter value combination having the same value of the second parameter are sorted in the order of the values of the first parameter in the parameter value combination having the same value of the second parameter from small to large or from large to small.
  • the first communication device also includes a transceiver module, the transceiver module is used to receive third indication information, the third indication information is used to indicate a target pilot sequence, and the target pilot sequence is a pilot sequence in a pilot sequence set.
  • the first communication device also includes a transceiver module, which is used to send a target pilot sequence.
  • the third indication information is used to indicate an index of a target pilot sequence.
  • the third indication information is carried in a DCI, MAC CE or RRC message.
  • the value of the first parameter in the first candidate set belongs to the interval (0, N-1], N is the maximum prime number not greater than L or the minimum prime number not less than L, and x is an integer greater than or equal to 2.
  • N is the period of the x-order term of the position index variable n used to generate the phase in the first sequence.
  • the value of the second parameter in the second candidate set belongs to the interval (0, M-1], or the interval (0, N-1], or the interval (0, m-1], m is a prime number
  • M is the period of the y-order term of the position index variable n used to generate the phase in the first sequence
  • N is the period of the x-order term of the position index variable n used to generate the phase in the first sequence
  • x is an integer greater than or equal to 2
  • y is an integer greater than or equal to 2
  • x is greater than y
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the processing module is specifically used to: receive fourth indication information from the second communication device, where the fourth indication information is used to indicate a target parameter value combination.
  • the present application provides a communication device, comprising: a processor and a memory.
  • the memory stores a computer program or a computer instruction
  • the processor is used to call and run the computer program or the computer instruction stored in the memory, so that the processor implements any one of the implementation methods in the first aspect or the second aspect.
  • the communication device further includes a transceiver, and the processor is used to control the transceiver to send and receive signals.
  • the present application provides a communication device, comprising a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and execute the method described in the first aspect or the second aspect.
  • the processor comprises one or more.
  • the present application provides a communication device, including a processor, which is connected to a memory and is used to call a program stored in the memory to execute the method described in the first aspect or the second aspect.
  • the memory can be located inside the communication device or outside the communication device.
  • the processor includes one or more.
  • the communication device of the third aspect and the fourth aspect may be a chip or a chip system.
  • An eighth aspect of the present application provides a computer program product comprising computer instructions, characterized in that when the computer program product is run on a computer, the computer is caused to execute any one of the implementation methods of the first aspect or the second aspect.
  • a ninth aspect of the present application provides a computer-readable storage medium, comprising computer instructions, which, when executed on a computer, enable the computer to execute any one of the implementation methods of the first aspect or the second aspect.
  • the present application provides a chip device, including a processor, for calling a computer program or computer instruction in a memory so that the processor executes any implementation of the first or second aspect above.
  • the processor is coupled to the memory via an interface.
  • a chip system which includes a processor, and the processor is used to call a computer program or computer instructions so that a communication device equipped with the chip system executes an implementation method such as any one of the first aspect or the second aspect, or causes the communication device to execute an implementation method such as any one of the first aspect or the second aspect.
  • the chip system also includes a communication interface for communicating with other devices.
  • the twelfth aspect of the present application provides a chip system, which is applied to an electronic device.
  • the chip system includes one or more processors, and the one or more processors are used to call computer instructions and enable the electronic device to execute any one of the implementation methods of the first aspect or the second aspect.
  • the first communication device determines the first candidate set and the second candidate set, the first candidate set includes one or more values of the first parameter, the second candidate set includes one or more values of the second parameter, the first parameter and the second parameter are used together to determine the elements in the first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; the first communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter. It can be seen that the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set. It is convenient for the first communication device to select a corresponding parameter value combination from one or more parameter value combinations to generate a first sequence, and generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG2 is a schematic diagram of an embodiment of a determination method according to an embodiment of the present application.
  • FIG3 is a schematic diagram of an embodiment of a method for sending a pilot sequence according to an embodiment of the present application
  • FIG4 is a schematic diagram of a structure of a communication device according to an embodiment of the present application.
  • FIG5 is another schematic diagram of the structure of the communication device according to an embodiment of the present application.
  • FIG6 is a schematic diagram of a structure of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the structure of a network device according to an embodiment of the present application.
  • the embodiment of the present application provides a determination method and a related device, which is used for a first communication device to determine a first candidate set and a second candidate set, the first candidate set includes one or more values of a first parameter, the second candidate set includes one or more values of a second parameter, the first parameter and the second parameter are used together to determine an element in a first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first communication device determines one or more parameter value combinations based on the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter.
  • the first communication device determines one or more parameter value combinations based on the first candidate set and the second candidate set. It is convenient for the first communication device to select a corresponding parameter value combination from one or more parameter value combinations to generate a first sequence, and generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this application generally indicates that the associated objects before and after are in an "or" relationship.
  • an efficient communication method can make better use of instantaneous channel information and perform appropriate information and/or signal preprocessing at the transmitter side so that the ship speed and can match the instantaneous channel capacity. This problem is even more important and complex in multi-user communication and multi-antenna communication.
  • the transmitter needs to obtain instantaneous channel information before transmission. Obviously, the more accurate the instantaneous channel information obtained by the transmitter, the better.
  • the most common way to obtain instantaneous channel information is channel measurement.
  • the transmitter can obtain instantaneous channel information by estimating the channel from the receiver to the transmitter.
  • the terminal device transmits a reference signal to the base station, thereby assisting the base station in obtaining the instantaneous channel information between the terminal device and the base station by measuring the reference signal.
  • the reference signal can be an SRS.
  • SRS needs to support a certain capacity, and the correlation between SRSs is relatively good to avoid the SRSs corresponding to terminal devices within the cell and terminal devices between cells being different. Interference.
  • a base station simultaneously receives SRSs from multiple terminal devices in the cell, if multiple SRSs occupy non-orthogonal time-frequency resources, and without loss of generality, it is assumed that two SRSs occupy the same time-frequency resources, then the lower the correlation between the two SRSs, the lower the interference of another SRS on the SRS currently being parsed when each SRS is parsed to estimate the channel between the terminal device corresponding to the SRS and the base station, and the more realistic the channel between the terminal device and the base station can be obtained through the SRS currently being parsed.
  • the receiving end in order to correctly receive and demodulate data, it is also necessary to obtain instantaneous channel information. This can be achieved by transmitting specific information known to both the transmitter and receiver on some specific time-frequency resources.
  • the signal carrying this information can be called DMRS.
  • the receiving end on the time-frequency resources corresponding to the DMRS, because the information transmitted by the DMRS is known, it can decode the channel through which the DMRS passes, that is, the channel from the transmitter to the receiver.
  • the terminal device can use the ZC sequence to generate a pilot sequence. Specifically, the terminal device shortens or cyclically shifts the ZC sequence to obtain a pilot sequence.
  • a first communication device determines a first candidate set and a second candidate set, the first candidate set includes one or more values of a first parameter, the second candidate set includes one or more values of a second parameter, the first parameter and the second parameter are used together to determine an element in a first sequence, and the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • This facilitates the first communication device to generate a pilot sequence based on the first sequence, thereby improving the capacity of the pilot sequence to meet the capacity requirements of the communication system.
  • the first communication device determines one or more parameter value combinations based on the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter. It is further convenient for the first communication device to select a corresponding parameter value combination from one or more parameter value combinations to generate a first sequence, and generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence. For details, please refer to the relevant introduction of the embodiments below.
  • the technical solution of the present application can be applied to cellular communication systems related to the 3rd generation partnership project (3GPP). For example, communication systems after the 4th generation (4G) communication system, the 5G communication system, and the 5th generation communication system.
  • the 6th generation communication system For example, the 4th generation communication system.
  • the 4th generation communication system may include the long term evolution (LTE) communication system.
  • the 5th generation communication system may include the new radio (NR) communication system.
  • WiFi wireless fidelity
  • communication systems that support the integration of multiple wireless technologies
  • D2D device-to-device
  • V2X vehicle to everything
  • the communication system to which the technical solution provided by the present application is applicable includes a first communication device and a second communication device, and the first communication device and the second communication device implement the technical solution of the present application.
  • the first communication device is a network device
  • the second communication device is a terminal device.
  • the first communication device is a terminal device
  • the second communication device is a network device.
  • Terminal equipment also known as user equipment (UE), mobile station (MS), mobile terminal (MT), customer premise equipment (CPE), etc.
  • Terminal equipment is equipment that includes wireless communication functions (providing voice/data connectivity to users).
  • terminal devices may include: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, etc.
  • wireless terminals in self-driving can be drones, helicopters, or airplanes, etc.
  • wireless terminals in the Internet of Vehicles can be vehicle-mounted equipment, vehicle equipment, vehicle-mounted modules, vehicles, or ships, etc.
  • Wireless terminals in industrial control can be cameras, robots, or robotic arms, etc.
  • the wireless terminals in a smart home can be TVs, air conditioners, vacuum cleaners, speakers, or set-top boxes.
  • the terminal device may be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, module or control unit in the device or apparatus shown above, and this application does not limit this specifically.
  • a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices.
  • a radio access network (RAN) node that is connected to a wireless network may also be called an access network device, a RAN entity, an access node, a network node, or a communication device.
  • RAN radio access network
  • the network equipment includes, but is not limited to, evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be a network device in a 5G mobile communication system.
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved NodeB, or home Node B, HNB
  • BBU baseband unit
  • AP access point
  • WIFI wireless fidelity
  • TP transmission point
  • TRP transmission and reception point
  • a next generation NodeB (gNB), TRP, or transmission point (TP) in an NR system may also be a network node constituting a gNB or a transmission point.
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • AAU active antenna unit
  • the CU implements some functions of the gNB
  • the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implementing the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer.
  • the DU is responsible for processing the physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • the AAU implements some physical layer processing functions, RF processing, and related functions of active antennas.
  • the information of the RRC layer will eventually become the information of the PHY layer, or be converted from the information of the PHY layer. Therefore, under this architecture, high-level signaling (such as RRC layer signaling) can also be considered to be sent by the DU, or by the DU and the AAU.
  • the network device may be a device or apparatus with a chip, or a device or apparatus with integrated circuits, or a chip, module or control unit in the device or apparatus shown above, and this application does not make any specific limitation.
  • Figure 1 only introduces the scenario of transmitting SRS or DMRS between the base station 101 and the terminal device 102.
  • the present application is also applicable to the transmission of synchronization signals or scrambled signals between the base station 101 and the terminal device 102, and does not specifically limit the applicable scenarios of the present application.
  • FIG2 is a schematic diagram of an embodiment of a determination method of an embodiment of the present application. Referring to FIG2 , the method includes:
  • a first communication device determines a first candidate set and a second candidate set.
  • the first candidate set includes one or more values of the first parameter.
  • the second candidate set includes one or more values of the second parameter.
  • the first parameter and the second parameter are used together to determine an element in a first sequence, where the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first sequence is a cubic exponential sequence, a quaternary exponential sequence, or a quintic exponential sequence.
  • the first parameter and the second parameter are used together to determine the phase of the elements in the first sequence.
  • the first parameter is the coefficient of the x-order term of the position index variable n used to generate the phase in the first sequence, and the first parameter is an integer.
  • the second parameter is the coefficient of the y-order term of the position index variable n used to generate the phase in the first sequence, and the second parameter is an integer.
  • x is an integer greater than or equal to 2
  • y is an integer greater than or equal to 2
  • x is greater than y.
  • the first sequence is a cubic exponential sequence, which can be specifically expressed as or, 0 ⁇ n ⁇ P-1.
  • P L, or P ⁇ L
  • L is the length of the pilot sequence.
  • the first parameter can be a
  • the second parameter can be b.
  • the first parameter can be The second parameter can be and Both can be integers or non-integers.
  • N is the period of the x-order term about the position index variable n used to generate the phase in the first sequence, and N is an integer.
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the first sequence is a cubic exponential sequence, and N is the period of the cubic term about the position index variable n used to generate the phase in the first sequence.
  • M is the period of the y-order term about the position index variable n used to generate the phase in the first sequence, and M is an integer.
  • the first sequence is a cubic exponential sequence
  • M is the period of the quadratic term about the position index variable n used to generate the phase in the first sequence.
  • M N.
  • M is a prime number that is not equal to N.
  • M 2N.
  • M sm 2 , where s and m are both prime numbers.
  • the value of the first parameter in the first candidate set belongs to the interval (0, N-1].
  • N is the period of the x-order term of the position index variable n used to generate the phase in the first sequence.
  • the value of the first parameter is an integer, that is, the value of the first parameter can be an integer in the interval (0, N-1].
  • Implementation method 1 The value of the second parameter in the second candidate set belongs to the interval (0, M-1].
  • Implementation method 2 The value of the second parameter in the second candidate set belongs to the interval (0, N-1].
  • N is a factor of M.
  • M 2N.
  • Implementation method 3 The value of the second parameter in the second candidate set belongs to the interval (0, m-1], where m is a prime number.
  • M sm 2 .
  • the value of the second parameter is an integer, that is, the value of the second parameter can be an integer in the range shown in the above implementation modes 1 to 3.
  • the first communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set.
  • Each parameter value combination in the one or more parameter value combinations includes a value of the first parameter and a value of the second parameter.
  • the one or more parameter value combinations may be a subset of all parameter value combinations consisting of all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set.
  • each parameter value combination satisfies the first target condition.
  • each parameter value combination in the one or more parameter value combinations satisfies the first target condition, including: among all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set, Q parameter value combinations corresponding to the first Q values that minimize the value of the objective function.
  • Q is an integer greater than or equal to 1.
  • the objective function is a function related to PAPR or a function related to CM, that is, the objective function is a function used to characterize PAPR or CM.
  • the objective function is represented by f(s o (n)).
  • the first communication device may ignore the first-order term and the constant term on the phase in z(n).
  • the first communication device determines one or more parameter value combinations from all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set according to the objective function f(s o (n)).
  • the goal of the first communication device is to select a certain number of one or more parameter value combinations that optimize the performance of the objective function.
  • (a,b) Q represents the combination of Q groups (a, b), arg a,b min Q (f(s o (n))) represents the combination of Q groups (a, b) corresponding to the Q values that make the value of the objective function f(s o (n)) the smallest among all values of a and all values of b in the first candidate set. That is, the value of the objective function f(s o (n)) under this combination of Q groups (a, b) is not greater than the value of the objective function f(s o (n)) under other combinations of (a, b).
  • the objective function f(s o (n)) may be a function related to PAPR, so that the combination of the obtained Q groups (a, b) is selected so that the PAPR of the corresponding so (n) is minimized.
  • f(s o (n)) may also be expressed as PAPR(s o (n)).
  • f(s o (n)) can be expressed as:
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n), and R is a positive number.
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the first sequence may also be referred to as a base sequence.
  • f(s o (n)) can be expressed as:
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • the first sequence may also be referred to as a base sequence.
  • f(s o (n)) can be expressed as:
  • R represents the number of sampling points for sampling the time domain signal generated by s o (n), and R is a positive number.
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • fc is the frequency of the carrier to which the pilot sequence is mapped, and f0 is the center frequency of the carrier.
  • f(s o (n)) can be expressed as:
  • N is the largest prime number not greater than L or the smallest prime number not less than L.
  • fc is the frequency of the carrier to which the pilot sequence is mapped, and f0 is the center frequency of the carrier.
  • R may be predefined by the protocol, or configured and indicated by indication information, which is not specifically limited in this application.
  • R ⁇ L In general, R ⁇ 4L.
  • f(s o (n)) can be expressed as:
  • dB and C are both constants.
  • dB can be defined in continuous form, which can be expressed as rms(u) represents the root mean square of u, s(t) is the time domain signal generated by using s o (n), that is,
  • dB can be defined in discrete form, which can be expressed as rms(u) means the root mean square of u.
  • the parameter value combination corresponding to the Q values that minimize the value of the objective function is selected through the above objective function, and the parameter value combination is used to determine the first sequence, and the first sequence can be used to generate the pilot sequence.
  • the objective function may be a function related to the PAPR performance or CM performance, which is helpful to further improve the PAPR performance or CM performance of the pilot sequence.
  • the first sequence is represented as s o (n), the position index variable n in the first sequence belongs to the interval [0, P-1], 0 ⁇ n ⁇ P-1, P ⁇ L, L is the length of the pilot sequence.
  • (t(0), t(1), ..., t(LP-1)) represents a set of combinations of (t(0), t(1), ..., t(LP-1)), arg t(0), t(1), ..., t(LP-1) min(f([z(0), z(1), ..., z(P), t(0), t(1), ..., t(LP-1)])) represents a set of combinations of (t(0), t(1), ..., t(LP-1)) that minimize the objective function f(s o (n)) in the range of all possible values of (t(0), t(1), ..., t(LP-1)).
  • the ellipsis part includes t(2), t(3) to t(tP-2).
  • the first communication device determines one or more parameter value combinations from all values of the first parameter in the first candidate set and all values of the second parameter in the second candidate set according to the objective function f(s o (n)). In other words, the first communication device aims to select a certain number of one or more parameter value combinations that optimize the performance of the objective function.
  • s o (n) in formula 1 is replaced by s o (n) shown in the above formula 7.
  • the objective function f(s o (n)) may be a function related to PAPR or CM. Specifically, some possible representations of the objective function f(s o (n)) are shown in Formulas 2 to 6 above, except that s o (n) in Formulas 2 to 6 is replaced by s o (n) shown in Formula 7 above.
  • z(n) in the above formulas 2 to 6 can also be generated by a basic sequence and a supplementary sequence.
  • z(n) x(n)y(n)
  • basic sequence Supplementary sequence That is, the sequence z(n) is obtained by performing element-by-element dot product of x(n) and y(n).
  • the one or more parameter value combinations are used to generate a pilot sequence set, the pilot sequence set includes one or more pilot sequences, and one pilot sequence corresponds to one parameter value combination.
  • Implementation method 1 The pilot sequences in the pilot sequence set are sorted in ascending order or in descending order according to the values corresponding to the objective function under the parameter value combinations corresponding to the pilot sequences.
  • the Q parameter value combinations include 4 parameter value combinations, namely parameter value combination 1 to parameter value combination 4.
  • Parameter value combination 1 corresponds to pilot sequence 1
  • parameter value combination 2 corresponds to pilot sequence 2
  • parameter value combination 3 corresponds to pilot sequence 3
  • parameter value combination 4 corresponds to pilot sequence 4.
  • the value of the objective function under parameter value combination 1 is a1
  • the value of the objective function under parameter value combination 2 is a2
  • the value of the objective function under parameter value combination 3 is a3
  • the value of the objective function under parameter value combination 4 is a4.
  • a1>a3>a2>a4. Therefore, the pilot sequence set can be expressed as ⁇ pilot sequence 1, pilot sequence 3, pilot sequence 2, pilot sequence 4 ⁇ .
  • pilot sequences in the pilot sequence set may also be sorted in other orders according to the values corresponding to the objective function under the parameter value combinations corresponding to the pilot sequences, which is not specifically limited in this application.
  • Implementation method 2 The pilot sequences in the pilot sequence set are sorted in the order of the values of the first parameter in the parameter value combination corresponding to the pilot sequence from small to large or from large to small. For the pilot sequences corresponding to the parameter value combination with the same value of the first parameter, the pilot sequences are sorted in the order of the values of the second parameter in the parameter value combination with the same value of the first parameter from small to large or from large to small.
  • the Q parameter value combinations include 4 parameter value combinations, namely parameter value combination 1 to parameter value combination 4.
  • Parameter value combination 1 corresponds to pilot sequence 1
  • parameter value combination 2 corresponds to pilot sequence 2
  • parameter value combination 3 corresponds to pilot sequence 3
  • parameter value combination 4 corresponds to pilot sequence 5.
  • Value combination 4 corresponds to pilot sequence 4.
  • Parameter value combination 1 is represented as (a1, b1)
  • parameter value combination 2 is represented as (a2, b2)
  • parameter value combination 3 is represented as (a3, b3)
  • parameter value combination 4 is represented as (a4, b4).
  • pilot sequences in the pilot sequence set may also be sorted according to other orders of the values of the first parameter in the parameter value combination corresponding to the pilot sequence.
  • pilot sequences corresponding to the parameter value combination with the same value of the first parameter they may also be sorted according to other orders of the values of the second parameter in the parameter value combination with the same value of the first parameter.
  • Implementation method 3 The pilot sequences in the pilot sequence set are sorted in the order of the values of the second parameter in the parameter value combination corresponding to the pilot sequence from small to large or from large to small. For the pilot sequences corresponding to the parameter value combination with the same value of the second parameter, they are sorted in the order of the values of the first parameter in the parameter value combination with the same value of the second parameter from small to large or from large to small.
  • pilot sequences in the pilot sequence set may also be sorted according to other orders of the values of the second parameter in the parameter value combination corresponding to the pilot sequence.
  • pilot sequences corresponding to the parameter value combination with the same value of the second parameter they may also be sorted according to other orders of the values of the first parameter in the parameter value combination with the same value of the second parameter.
  • the first sequence of the present application may also be used to generate other types of sequences, which is not limited in the present application.
  • the first sequence may also be used to generate a synchronization sequence or a scrambling sequence.
  • the objective function may be a function related to the relevant performance.
  • Q may be predefined by the protocol, or may be determined by L, or multiple preset values may be predefined by the protocol and indicated through indication information, which is not specifically limited in this application.
  • the objective function may be predefined by the protocol, or the protocol may predefine a candidate set of objective functions and then indicate by the indication information. This implementation method is described below in conjunction with step 202a.
  • step 202a may be performed before step 202.
  • the second communication device sends first indication information to the first communication device.
  • the first communication device receives the first indication information from the second communication device.
  • the first indication information is used to indicate the target function.
  • the first indication information may be carried in a physical broadcast channel.
  • the first indication information may be carried in a DCI, a MAC CE, or an RRC message.
  • the embodiment shown in FIG. 2 further includes steps 202b to 202c.
  • the second communication device determines a first candidate set and a second candidate set.
  • the second communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set.
  • Step 202b to step 202c are similar to step 201 to step 202 in the embodiment shown in FIG. 2 .
  • Step 202b to step 202c are similar to step 201 to step 202 in the embodiment shown in FIG. 2 .
  • Step 202a there is no fixed execution order between the above steps 202b to 202c and step 202a.
  • Steps 202b to 202c may be executed first, and then step 202a; or, step 202a may be executed first, and then steps 202b to 202c; or, steps 202b to 202c and step 202a may be executed simultaneously according to circumstances, and this application does not make any specific limitation.
  • steps 202b to 202c are merely an example implementation method.
  • the first communication device may send the one or more parameter value combinations to the second communication device.
  • the second communication device may indicate one of the parameter value combinations to the first communication device. This will be described below in conjunction with step 203.
  • Step 203 may be performed after step 202.
  • the second communication device sends second indication information to the first communication device.
  • the first communication device receives the second indication information from the second communication device.
  • the second indication information is used to indicate a parameter value combination among one or more parameter value combinations.
  • the second indication information is used to indicate the index of the parameter value combination.
  • the second indication information is used to indicate the value of the first parameter and the value of the second parameter in the parameter value combination.
  • the second indication information is carried in a DCI, MAC CE or RRC message.
  • step 203 may be performed after step 202c.
  • the embodiment shown in FIG2 further includes steps 204 to 206. Steps 204 to 206 may be performed after step 203.
  • the first communication device generates a first sequence according to the parameter value combination indicated by the second indication information.
  • the first communication device determines the first sequence according to the value of the first parameter and the value of the second parameter in the parameter value combination.
  • the first communication device generates a target pilot sequence according to the first sequence.
  • the second indication information further indicates at least one of the following: a value of a third parameter, a value of a fourth parameter, or a value of a fifth parameter.
  • the third parameter indicates the number of cyclic shifts corresponding to the target pilot sequence
  • the fourth parameter indicates the index of the cyclic shift used by the target pilot sequence
  • the fifth parameter indicates that the same constant phase rotation is added to each element in the target pilot sequence.
  • the first communication device generates the first sequence according to the value of the third parameter, at least one of the value of the third parameter and the value of the fifth parameter, and the parameter value combination indicated by the second indication information.
  • the first communication device sends a target pilot sequence to the second communication device.
  • the second communication device receives the target pilot sequence from the first communication device.
  • the first communication device generates a pilot signal using a corresponding waveform according to a target pilot sequence in a predetermined time-frequency resource.
  • the first communication device is a terminal device
  • the second communication device is a network device
  • the target pilot sequence is an SRS sequence.
  • the network device can measure the SRS sequence to complete the detection and/or estimation of the uplink channel between the terminal device and the network device.
  • the network device can estimate the downlink channel based on the estimation result of the uplink channel.
  • the first communication device is a network device
  • the second communication device is a terminal device
  • the target pilot sequence is a DMRS sequence.
  • the terminal device measures the DMRS sequence to complete the detection and/or estimation of the downlink channel between the network device and the terminal device.
  • the terminal device can estimate the uplink channel according to the estimation result of the downlink channel.
  • the first communication device and the second communication device may respectively determine a pilot sequence set based on one or more parameter value combinations. Then, the second communication device may indicate one of the pilot sequences to the first communication device.
  • the embodiment shown in FIG2 further includes step 207. Step 207 may be performed after step 202.
  • the first communication device generates a pilot sequence set according to one or more parameter value combinations and a first sequence.
  • the pilot sequence set includes one or more pilot sequences, one pilot sequence corresponds to one parameter value combination, and different pilot sequences correspond to different parameter value combinations.
  • different pilot sequences correspond to different parameter value combinations.
  • the embodiment shown in FIG. 2 also includes step 208 .
  • the second communication device generates a pilot sequence set according to one or more parameter value combinations and the first sequence.
  • Step 208 is similar to the aforementioned step 207.
  • Step 208 please refer to the relevant introduction of the aforementioned step 207, which will not be repeated here.
  • step 207 may be executed first, and then step 208; or, step 208 may be executed first, and then step 207; or, step 207 and step 208 may be executed simultaneously depending on the circumstances, which is not specifically limited in this application.
  • step 208 is only an exemplary implementation method.
  • the first communication device may send the pilot sequence set to the second communication device.
  • step 209 may be performed after step 208.
  • the second communication device sends third indication information to the first communication device.
  • the first communication device receives the third indication information from the second communication device.
  • the third indication information is used to indicate a target pilot sequence, and the target pilot sequence is a pilot sequence in a pilot sequence set.
  • the third indication information is used to indicate the index of the target pilot sequence.
  • Step 210 may be performed after step 209.
  • the first communication device sends a target pilot sequence to the second communication device.
  • the second communication device receives the target pilot sequence from the first communication device.
  • Step 210 is similar to step 206.
  • Step 210 please refer to the relevant introduction of step 206, which will not be repeated here.
  • a first communication device determines a first candidate set and a second candidate set, the first candidate set includes one or more values of a first parameter, the second candidate set includes one or more values of a second parameter, the first parameter and the second parameter are used together to determine an element in a first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; the first communication device determines one or more parameter value combinations based on the first candidate set and the second candidate set, each parameter value combination includes a value of the first parameter and a value of the second parameter. It can be seen that the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the communication device determines one or more parameter value combinations according to the first candidate set and the second candidate set. It is convenient for the first communication device to select a corresponding parameter value combination from the one or more parameter value combinations to generate a first sequence, and generate a pilot sequence based on the first sequence. It is beneficial to ensure the PAPR performance or CM performance of the pilot sequence.
  • the embodiment shown in FIG. 2 above only shows the implementation method of the first communication device determining the parameter value combination including the first parameter and the second parameter.
  • the first communication device can also determine some values of other parameters in a similar manner, which is not limited in this application. That is, the parameter value combination can include more parameters.
  • the first sequence is The first parameter is a
  • the second parameter is b.
  • the first communication device may also determine some possible values corresponding to c and d in the first sequence in a similar manner.
  • the first sequence is a quartic exponential sequence
  • the first parameter is the coefficient of the cubic term of the position index variable n used to generate the phase in the first sequence
  • the second parameter is the coefficient of the quadratic term of the position index variable n used to generate the phase in the first sequence.
  • the first communication device may also determine the coefficient of the quartic term of the position index variable n used to generate the phase in the first sequence in a similar manner.
  • FIG3 is a schematic diagram of an embodiment of a pilot sequence sending method of the present application.
  • the method includes:
  • a first communication device determines a value of a first parameter and a value of a second parameter.
  • the value of the first parameter is the value of the first parameter in the target parameter value combination
  • the value of the second parameter is the value of the second parameter in the target parameter value combination.
  • the target parameter value combination belongs to one or more parameter value combinations, and the one or more parameter value combinations are determined according to the first candidate set and the second candidate set.
  • the first candidate set includes one or more values of the first parameter
  • the second candidate set includes one or more values of the second parameter.
  • the first communication device determines a value of the first parameter and a value of the second parameter, including: the first communication device receives fourth indication information from the second communication device, where the fourth indication information is used to indicate a target parameter value combination.
  • the first communication device generates a first sequence according to a value of the first parameter and a value of the second parameter.
  • Step 302 is similar to step 204 in the embodiment shown in FIG. 2 .
  • Step 302 please refer to the relevant introduction of step 204 in the embodiment shown in FIG. 2 , which will not be repeated here.
  • the first communication device generates a target pilot sequence according to the first sequence.
  • Step 303 is similar to step 205 in the embodiment shown in FIG. 2 .
  • Step 303 is similar to step 205 in the embodiment shown in FIG. 2 .
  • the first communication device sends a target pilot sequence to the second communication device.
  • the second communication device receives the target pilot sequence from the first communication device.
  • Step 304 is similar to step 206 in the embodiment shown in FIG. 2 .
  • Step 304 please refer to the relevant introduction of step 206 in the embodiment shown in FIG. 2 , which will not be repeated here.
  • the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3.
  • the first communication device generates a target pilot sequence based on the first sequence, thereby increasing the capacity of the target pilot sequence to meet the capacity requirements of the communication system.
  • the one or more parameter value combinations are determined based on the first candidate set and the second candidate set, and the target parameter value is one of the one or more parameter value combinations. This is conducive to ensuring the PAPR performance or CM performance of the target pilot sequence.
  • the communication device provided in the embodiment of the present application is described below.
  • Fig. 4 is a schematic diagram of a structure of a communication device according to an embodiment of the present application.
  • a communication device 400 can be used to execute the process executed by the first communication device or the second communication device in the embodiments shown in Fig. 2 and Fig. 3.
  • Fig. 4 please refer to the relevant introduction in the above method embodiments.
  • the communication device 400 includes a processing module 401.
  • the communication device 400 also includes a transceiver module 402.
  • the processing module 401 is used for data processing.
  • the transceiver module 402 can realize the corresponding communication function.
  • the transceiver module 402 can also be called a communication interface or a communication module.
  • the communication device 400 may further include a storage module, which may be used to store instructions and/or data.
  • the processing module 401 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.
  • the communication device 400 may be used to perform the actions performed by the first communication device in the above method embodiment.
  • the communication device 400 may be the first communication device or a component that can be configured in the first communication device.
  • the processing module 401 is used to perform the processing-related operations on the first communication device side in the above method embodiment.
  • the transceiver module 402 is used to perform the reception-related operations on the first communication device side in the above method embodiment.
  • the communication device 400 is used to perform the following scheme:
  • the processing module 401 is used to determine a first candidate set and a second candidate set, wherein the first candidate set includes one or more options of the first parameter. value, the second candidate set includes one or more values of the second parameter, the first parameter and the second parameter are used together to determine the elements in the first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; one or more parameter value combinations are determined according to the first candidate set and the second candidate set, and each parameter value combination includes a value of the first parameter and a value of the second parameter.
  • the communication device 400 may be used to perform the actions performed by the second communication device in the above method embodiment.
  • the communication device 400 may be a second communication device or a component that can be configured in the second communication device.
  • the processing module 401 is used to perform the processing-related operations on the second communication device side in the above method embodiment.
  • the transceiver module 402 is used to perform the reception-related operations on the second communication device side in the above method embodiment.
  • the transceiver module 402 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 400 may include a sending module but not a receiving module.
  • the communication device 400 may include a receiving module but not a sending module. Specifically, it may depend on whether the above solution executed by the communication device 400 includes a sending action and a receiving action.
  • the communication device 400 is used to perform the actions performed by the first communication device or the second communication device in the embodiments shown in Figures 2 and 3.
  • the processing module 401 in the above embodiment can be implemented by at least one processor or processor-related circuit.
  • the transceiver module 402 can be implemented by a transceiver or a transceiver-related circuit.
  • the transceiver module 402 can also be called a communication module or a communication interface.
  • the storage module can be implemented by at least one memory.
  • Fig. 5 is another schematic diagram of the structure of the communication device of the embodiment of the present application.
  • the communication device 500 can be used to execute the process executed by the first communication device or the second communication device in the embodiments shown in Fig. 2 and Fig. 3.
  • the relevant introduction in the above method embodiments please refer to the relevant introduction in the above method embodiments.
  • the communication device 500 includes a processing module 501 and a transceiver module 502 .
  • the processing module 501 is used for data processing.
  • the transceiver module 502 can realize the corresponding communication function.
  • the transceiver module 502 can also be called a communication interface or a communication module.
  • the communication device 500 may further include a storage module, which may be used to store instructions and/or data.
  • the processing module 501 may read the instructions and/or data in the storage module so that the communication device implements the aforementioned method embodiment.
  • the communication device 500 may be used to perform the actions performed by the first communication device in the above method embodiment.
  • the communication device 500 may be the first communication device or a component that may be configured in the first communication device.
  • the processing module 501 is used to perform the processing-related operations on the first communication device side in the above method embodiment.
  • the transceiver module 502 is used to perform the reception-related operations on the first communication device side in the above method embodiment.
  • the communication device 500 is used to perform the following scheme:
  • the processing module 501 is used to determine the value of a first parameter and the value of a second parameter, the value of the first parameter is the value of the first parameter in the target parameter value combination, the value of the second parameter is the value of the second parameter in the target parameter value combination, the target parameter value is one of one or more parameter value combinations, the one or more parameter value combinations are determined according to a first candidate set and a second candidate set, the first candidate set includes one or more values of the first parameter, the second candidate set includes one or more values of the second parameter, the first parameter and the second parameter are used together to determine an element in a first sequence, the first sequence is a z-order exponential sequence, and z is an integer greater than or equal to 3; a first sequence is generated according to the value of the first parameter and the value of the second parameter; a target pilot sequence is generated according to the first sequence; a transceiver module 502 is used to send a target pilot sequence.
  • the communication device 500 may be used to perform the actions performed by the second communication device in the above method embodiment.
  • the communication device 500 may be a second communication device or a component that can be configured in the second communication device.
  • the processing module 501 is used to perform the processing-related operations on the second communication device side in the above method embodiment.
  • the transceiver module 502 is used to perform the reception-related operations on the second communication device side in the above method embodiment.
  • the transceiver module 502 may include a sending module and a receiving module.
  • the sending module is used to perform the sending operation in the above method embodiment.
  • the receiving module is used to perform the receiving operation in the above method embodiment.
  • the communication device 500 may include a sending module but not a receiving module.
  • the communication device 500 may include a receiving module but not a sending module. Specifically, it depends on whether the above solution executed by the communication device 500 includes a sending action and a receiving action.
  • the communication device 500 is used to execute the operations performed by the first communication device or the second communication device in the embodiments shown in FIG. 2 and FIG. 3.
  • the processing module 501 in the above embodiment can be implemented by at least one processor or processor-related circuit.
  • the transceiver module 502 can be implemented by a transceiver or a transceiver-related circuit.
  • the transceiver module 502 can also be called a communication module or a communication interface.
  • the storage module can be implemented by at least one memory.
  • the present application also provides a communication device 600, which may be a terminal device, a processor in the terminal device, or a chip.
  • the communication device 600 may be used to execute the operations executed by the first communication device or the second communication device in the above method embodiment.
  • the communication device 600 is a terminal device
  • a simplified schematic diagram of the structure of the terminal device is shown in Figure 6.
  • the terminal device includes a processor.
  • the processor is mainly used to process the communication protocol and communication data; control the terminal device, execute the software program and process the data of the software program, etc.
  • the terminal device further includes a memory and/or a transceiver.
  • the memory can store computer program codes
  • the transceiver includes at least one of the following: a transmitter 631, a receiver 632, a radio frequency circuit (not shown in the figure), an antenna 633, or an input/output device (not shown in the figure).
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • the input and output device may include a touch screen, a display screen, or a keyboard.
  • the input and output device is mainly used to receive data input by the user and output data to the user. It should be noted that some types of terminal devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. Then, the RF circuit performs RF processing on the baseband signal and sends the RF signal outward in the form of electromagnetic waves through the antenna.
  • the RF circuit receives the RF signal through the antenna.
  • the RF circuit converts the RF signal into a baseband signal and outputs the baseband signal to the processor.
  • the processor converts the baseband signal into data and processes the data.
  • FIG6 only one memory, processor and transceiver are shown in FIG6. In the actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or a storage device, etc.
  • the memory may be set independently of the processor or integrated with the processor, and the embodiment of the present application does not limit this.
  • the antenna and the radio frequency circuit with transceiver functions can be regarded as the transceiver module of the terminal device, and the processor with processing function can be regarded as the processing module of the terminal device.
  • the terminal device includes a processor 610.
  • the terminal device also includes a memory 620 and/or a transceiver 630.
  • the processor 610 may also be referred to as a processing unit, a processing board, a processing module, or a processing device, etc.
  • the transceiver 630 may also be referred to as a transceiver unit, a transceiver, or a transceiver device, etc.
  • the device for implementing the receiving function in the transceiver 630 is regarded as a receiving module
  • the device for implementing the sending function in the transceiver 630 is regarded as a sending module
  • the transceiver 630 includes a receiver and a transmitter.
  • the transceiver may sometimes be referred to as a transceiver, a transceiver module, or a transceiver circuit.
  • the receiver may sometimes be referred to as a receiver, a receiving module, or a receiving circuit.
  • the transmitter may sometimes be referred to as a transmitter, a transmitting module, or a transmitting circuit.
  • the processor 610 is used to execute the processing actions of the first communication device or the second communication device in the embodiments shown in Figures 2 and 3.
  • the transceiver 630 is used to execute the transceiver actions of the first communication device or the second communication device in the embodiments shown in Figures 2 and 3.
  • FIG6 is merely an example and not a limitation, and the terminal device including the transceiver module and the processing module may not rely on the structure shown in FIG4 or FIG6.
  • the chip When the communication device 600 is a chip, the chip includes a processor, a memory and a transceiver. Among them, the transceiver can be an input-output circuit or a communication interface.
  • the processor can be a processing module or a microprocessor or an integrated circuit integrated on the chip.
  • the sending operation of the first communication device or the second communication device in the above method embodiment can be understood as the output of the chip, and the receiving operation of the first communication device or the second communication device in the above method embodiment can be understood as the input of the chip.
  • the present application also provides a communication device 700, which can be a network device or a chip.
  • the communication device 700 can be used to perform the operations performed by the first communication device or the second communication device in the embodiments shown in FIG. 2 and FIG. 3 .
  • Fig. 7 shows a simplified schematic diagram of a base station structure.
  • the base station includes a part 710.
  • the base station also includes a part 720 and/or a part 730.
  • Part 710 is mainly used for baseband processing, controlling the base station, etc.; Part 710 is usually the control center of the base station, which can usually be called a processor, and is used to control the base station to perform the processing operations on the network device side in the above method embodiment.
  • the 720 part is mainly used to store computer program code and data.
  • Part 730 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals into baseband signals; Part 730 can generally be referred to as a transceiver module, a transceiver, a transceiver circuit, or a transceiver.
  • the transceiver module of Part 730 can also be referred to as a transceiver or a transceiver, etc. It includes an antenna 733 and a radio frequency circuit (not shown in the figure), wherein the radio frequency circuit is mainly used for radio frequency processing.
  • the device used to implement the receiving function in Part 730 can be regarded as a receiver, and the device used to implement the transmitting function can be regarded as a transmitter, that is, Part 730 includes a receiver 732 and/or a transmitter 731.
  • a receiver can also be referred to as a receiving module, a receiver, or a receiving circuit, etc.
  • a transmitter can be referred to as a transmitting module, a transmitter, or a transmitting circuit, etc.
  • Part 710 and part 720 may include one or more single boards, each of which may include one or more processors and one or more memories.
  • the processor is used to read and execute the program in the memory to realize the baseband processing function and the control of the base station. If there are multiple single boards, each single board can be interconnected to enhance the processing capability. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processors at the same time.
  • the transceiver module of part 730 is used to execute the transceiver-related process performed by the first communication device or the second communication device in the embodiments shown in Figures 2 and 3.
  • the processor of part 710 is used for the processing-related process performed by the first communication device or the second communication device in the embodiments shown in Figures 2 and 3.
  • FIG. 7 is merely an example and not a limitation, and the network device including the processor, the memory, and the transceiver may not rely on the structure shown in FIG. 5 or FIG. 7 .
  • the chip When the communication device 700 is a chip, the chip includes a transceiver, a memory and a processor.
  • the transceiver may be an input/output circuit or a communication interface;
  • the processor may be a processor, a microprocessor or an integrated circuit integrated on the chip.
  • the sending operation of the network device in the above method embodiment may be understood as the output of the chip, and the receiving operation of the network device in the above method embodiment may be understood as the input of the chip.
  • An embodiment of the present application also provides a computer-readable storage medium on which computer instructions for implementing the method executed by the first communication device or the second communication device in the above method embodiment are stored.
  • the computer when the computer program is executed by a computer, the computer can implement the method performed by the first communication device or the second communication device in the above method embodiment.
  • An embodiment of the present application also provides a computer program product including instructions, which, when executed by a computer, enables the computer to implement the method performed by the first communication device or the second communication device in the above method embodiment.
  • the embodiment of the present application also provides a communication system, which includes the first communication device in the above embodiment and the second communication device in the above embodiment.
  • the first communication device is used to perform some or all of the operations performed by the first communication device in the above method embodiment
  • the second communication device is used to perform some or all of the operations of the second communication device in the above method embodiment.
  • An embodiment of the present application also provides a chip device, including a processor, for calling a computer program or computer instruction stored in the memory so that the processor executes the method provided in the embodiments shown in Figures 2 and 3 above.
  • the input of the chip device corresponds to the receiving operation in any one of the embodiments shown in FIG. 2 and FIG. 3
  • the output of the chip device corresponds to the sending operation in any one of the embodiments shown in FIG. 2 and FIG. 3 .
  • the processor is coupled to the memory via an interface.
  • the chip device further comprises a memory, in which computer programs or computer instructions are stored.
  • the processor mentioned in any of the above places may be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the method provided in any of the embodiments shown in Figures 2 and 3.
  • the memory mentioned in any of the above places may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM), etc.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed over multiple network units. Some or all of the units may be selected to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the part that essentially contributes to the technical solution of the present application or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

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Abstract

L'invention concerne un procédé de détermination et un appareil associé. Le procédé consiste à : déterminer un premier ensemble candidat et un second ensemble candidat, le premier ensemble candidat comprenant une ou plusieurs valeurs d'un premier paramètre, le second ensemble candidat comprenant une ou plusieurs valeurs d'un second paramètre, le premier paramètre et le second paramètre étant utilisés conjointement pour déterminer des éléments dans une première séquence, la première séquence étant une z-ème séquence exponentielle, et z étant un nombre entier supérieur ou égal à 3 ; et déterminer une ou plusieurs combinaisons de valeurs de paramètre sur la base du premier ensemble candidat et du second ensemble candidat, chaque combinaison de valeurs de paramètre comprenant une valeur du premier paramètre et une valeur du second paramètre. Ainsi, un premier appareil de communication peut générer une séquence de fréquences pilotes sur la base d'une première séquence, ce qui permet d'augmenter la capacité de la séquence de fréquences pilotes de satisfaire les exigences de capacité d'un système de communication. En outre, les performances de rapport puissance crête à puissance moyenne (PAPR) ou les performances de métrique cubique (CM) de la séquence de fréquences pilotes peuvent être assurées.
PCT/CN2024/129635 2023-12-05 2024-11-04 Procédé de détermination et appareil associé Pending WO2025118897A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112822786A (zh) * 2019-10-31 2021-05-18 华为技术有限公司 一种数据处理方法及其装置
WO2022082792A1 (fr) * 2020-10-23 2022-04-28 华为技术有限公司 Procédé et appareil de transmission de signal et de détection de signal
CN115314346A (zh) * 2022-08-17 2022-11-08 Oppo广东移动通信有限公司 一种参数估计二维搜索方法、芯片、设备和存储介质
WO2023191973A1 (fr) * 2022-03-28 2023-10-05 Microsoft Technology Licensing, Llc Procédés d'optimisation de système

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112822786A (zh) * 2019-10-31 2021-05-18 华为技术有限公司 一种数据处理方法及其装置
WO2022082792A1 (fr) * 2020-10-23 2022-04-28 华为技术有限公司 Procédé et appareil de transmission de signal et de détection de signal
WO2023191973A1 (fr) * 2022-03-28 2023-10-05 Microsoft Technology Licensing, Llc Procédés d'optimisation de système
CN115314346A (zh) * 2022-08-17 2022-11-08 Oppo广东移动通信有限公司 一种参数估计二维搜索方法、芯片、设备和存储介质

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