WO2020151480A1 - 一种信号发送、接收方法及装置 - Google Patents

一种信号发送、接收方法及装置 Download PDF

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WO2020151480A1
WO2020151480A1 PCT/CN2020/070322 CN2020070322W WO2020151480A1 WO 2020151480 A1 WO2020151480 A1 WO 2020151480A1 CN 2020070322 W CN2020070322 W CN 2020070322W WO 2020151480 A1 WO2020151480 A1 WO 2020151480A1
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codeword
belongs
length
sequence
vector
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PCT/CN2020/070322
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English (en)
French (fr)
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WO2020151480A9 (zh
Inventor
曲秉玉
龚名新
王建国
周永行
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华为技术有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/008Transmission of channel access control information with additional processing of random access related information at receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access

Definitions

  • This application relates to the field of communication technology, and in particular to a signal sending and receiving method and device.
  • a random access channel is an uplink channel in a wireless communication system.
  • the RACH signal uses Zadoff-Chu (ZC) sequence, such as a Zadoff-Chu long sequence 139, or 839 long Zadoff-Chu sequence.
  • ZC Zadoff-Chu
  • the RACH signal sent by the terminal equipment also adds a cyclic prefix (CP).
  • CP cyclic prefix
  • the Zadoff-Chu sequence of length N has a total of N-1 different root sequences (root sequences).
  • the same root sequence can generate multiple sequences through time-domain cyclic shift.
  • a cell is generally allocated multiple RACH sequences for use by terminal equipment in the cell.
  • the RACH sequences of the same cell can be Zadoff-Chu sequences corresponding to different root sequences, or can be corresponding to the same root sequence Different time-domain cyclic shift sequences of Zadoff-Chu sequence.
  • the probability of different terminal devices selecting the same RACH sequence increases, resulting in a greater probability of RACH access conflicts.
  • more RACH sequences are required.
  • different RACH sequences can also be allocated to different terminal devices in advance. When there are more terminal devices that need to be supported, more RACH sequences are required. Or, during RACH access, it may be necessary to carry more information through different RACH sequences, which also requires more RACH sequences.
  • the embodiments of the present application provide a signal sending and receiving method and device for providing more sequences.
  • a signal sending method where the signal is a preamble signal or a reference signal, and the method includes:
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the method may be executed by a first communication device.
  • the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be another communication device, such as a chip system.
  • the first communication device is a terminal device.
  • the sequence ⁇ c(n) ⁇ can be obtained through at least two M-length codewords. Then, the number of codewords used to generate the sequence ⁇ c(n) ⁇ is different, and the resulting sequence ⁇ c (n) ⁇ is different, or, as long as one of the at least two M-length codewords is different, the resulting sequence ⁇ c(n) ⁇ is also different, and the first of the at least two M-length codewords
  • the codeword belongs to the codeword set of the first cyclic code
  • the second codeword in the at least two M-length codewords belongs to the codeword set of the second cyclic code, that is, the Each M-length codeword is cyclically separately, so for any one of the codewords, as long as the time domain cyclic shift is performed, another different codeword will be obtained.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the elements of the sequence s satisfy among them Satisfy:
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • sequence ⁇ c(n) ⁇ is a constant sequence
  • the different cyclic shifts of the sequence ⁇ c(n) ⁇ are the same. If the different cyclic shifts of the sequence ⁇ c(n) ⁇ are allocated to different terminal devices for use , The sequence ⁇ c(n) ⁇ used by each terminal device is the same. For the network device, it is impossible to distinguish which sequence comes from which terminal device, which will cause the network device to receive errors and cannot distinguish the delay of the terminal device. information. Therefore, the sequence ⁇ c(n) ⁇ can be made not a constant sequence to reduce interference between terminal devices and improve the reception success rate of network devices.
  • any two sequences ⁇ s 1 (n) ⁇ and ⁇ s 2 (n) ⁇ in the sequence set composed of ⁇ s(n) ⁇ can meet the above conditions, And doing so can also improve the reception success rate of network devices.
  • the method further includes: receiving first indication information from a network device, where the first indication information is used to indicate a sequence ⁇ c(n) ⁇
  • the cyclic shift value belongs to a third set, the third set includes at least two elements, and the difference between any two elements of the at least two elements is greater than or equal to L after modulo 2M, L is an integer greater than 1.
  • the sequence ⁇ c(n) ⁇ corresponding to different cyclic shift values can be allocated to different terminal devices. If the cyclic shift value of the sequence ⁇ c(n) ⁇ is small, and the delay between the two terminal devices Similarly, the signals from the two terminal devices received by the network device may be exactly the same, so that the network device cannot distinguish the delay information of different terminal devices. Therefore, the embodiment of the application uses the third set method to make the cyclic shift value of the sequence ⁇ c(n) ⁇ larger, so that the network device can determine the delay information of the terminal device according to the sequence ⁇ c(n) ⁇ , so that the The technical solution of the application embodiment can also be applied to the case where there is no uplink timing advance information.
  • the at least two M-length codewords include 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • M is the length of the at least two codewords comprises codewords Example 2 K, 2 K, and wherein the first codeword may be considered the last codeword of length M at least two codewords, and the second The k codewords are, for example, codewords that the network device first needs to decode after receiving the first signal.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence .
  • the shift register sequence can obtain different sequences by fixing the initial value and using different cyclic shift values.
  • the sequence generated in this way meets the characteristics of the cyclic code, and can be different by indicating the cyclic shift value.
  • the terminal devices are assigned different sequences.
  • At least two of M length codeword includes only 2 k code words, M is the number of the at least two codewords of length 2 k, then one of the 2 k th
  • the cyclic code (that is, the 2k- th codeword) can be a shift register sequence.
  • the method further includes: receiving second indication information from a network device, where the second indication information is used to indicate the at least two M lengths
  • the cyclic shift value of the 2k- th codeword in the codeword of, the cyclic shift value belongs to a second set, and the second set includes at least two elements, any two of the at least two elements After the differential mode M is greater than or equal to L, L is an integer greater than 1.
  • the network device needs to decode the 2k- th codeword first. If the M-length codewords assigned to two terminal devices, only the 2k- th codeword is different (among which, because the terminal device may all need to send to the network device Therefore, the technical solution provided in the embodiments of this application is applicable to multiple terminal devices.
  • the network device can assign different codewords to the terminal devices, and each terminal device can be assigned at least two codewords, and the codeword of terminal devices, as long as one code word different, it indicates that different), if the cyclic shift value of 2 k codewords allocated to the codeword small terminal device, the terminal equipment and two If the delay between the two terminals is similar, the signals received by the network device from the two terminal devices may be completely the same, so that the network device cannot distinguish the delay information of different terminal devices.
  • the present embodiment mode application through the second set, so that the first cycle 2 k codewords shift value is larger, so that the network delay information decoding apparatus according to the second codeword 2 k, the terminal device may be determined, so that the present application
  • the technical solution of the embodiment can also be applied to the case where there is no uplink timing advance information.
  • a signal receiving method including:
  • the first signal is a preamble signal or a reference signal
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • obtaining the preamble sequence of the first signal includes:
  • the at least one M-length codeword includes 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes;
  • the preamble sequence is obtained.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, wherein each element included in the constant sequence is the same.
  • first indication information is received from a network device, where the first indication information is used to indicate the cyclic shift value of the sequence ⁇ c(n) ⁇ , and the The cyclic shift value belongs to a third set, the third set includes at least two elements, and the difference between any two elements of the at least two elements is greater than or equal to L after a modulus of 2M, and L is an integer greater than 1.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence
  • the method further includes:
  • Send second indication information where the second indication information is used to indicate the cyclic shift value of the 2k- th codeword among the at least two M-length codewords, and the cyclic shift value belongs to the second set, so
  • the second set includes at least two elements, and the differential modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • a first communication device is provided, for example, the communication device is the first communication device as described above.
  • the communication device is configured to execute the foregoing first aspect or any possible implementation of the first aspect.
  • the communication device may include a module for executing the method in the first aspect or any possible implementation of the first aspect, for example, including a processing module and a transceiver module coupled with each other.
  • the communication device is a terminal device. among them,
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the transceiver module is used to send the preamble sequence.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, the first set is ⁇ 0, 1, ..., N-1 ⁇ ;
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver module is further configured to:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the at least two M-length codewords include 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence .
  • the transceiver module is further configured to:
  • the second indication information is used to indicate the cyclic shift value of the 2k- th codeword in the at least two M-length codewords, where the cyclic shift value belongs to the first Two sets, the second set includes at least two elements, the difference modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • a second communication device is provided, for example, the communication device is the second communication device as described above.
  • the communication device is used to execute the foregoing second aspect or any possible implementation of the second aspect.
  • the communication device may include a module for executing the method in the second aspect or any possible implementation of the second aspect, for example, including a processing module and a transceiver module that are coupled with each other.
  • the communication device is a network device. among them,
  • a transceiver module for receiving a first signal, where the first signal is a preamble signal or a reference signal
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the processing module is configured to obtain the preamble sequence of the first signal in the following manner:
  • the at least one M-length codeword includes 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes;
  • the preamble sequence is obtained.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver module is further configured to:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence .
  • the transceiver module is further configured to:
  • Send second indication information where the second indication information is used to indicate the cyclic shift value of the 2k- th codeword among the at least two M-length codewords, and the cyclic shift value belongs to the second set, so
  • the second set includes at least two elements, and the differential modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • a third communication device is provided.
  • the communication device is, for example, the first communication device described above.
  • the communication device includes a processor and a transceiver, and is used to implement the method described in the first aspect or various possible designs of the first aspect.
  • the communication device is a chip provided in a communication device.
  • the communication device is a terminal device.
  • the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. Connect with the radio frequency transceiving component in the communication equipment, so as to realize the information transmission and reception through the radio frequency transceiving component. among them,
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the transceiver is used to send the preamble sequence.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver is further used for:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the at least two M-length codewords include 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence .
  • the transceiver is further used for:
  • the second indication information is used to indicate the cyclic shift value of the 2k- th codeword in the at least two M-length codewords, where the cyclic shift value belongs to the first Two sets, the second set includes at least two elements, the difference modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • a fourth communication device is provided.
  • the communication device is, for example, the second communication device as described above.
  • the communication device includes a processor and a transceiver, and is used to implement the foregoing second aspect or the methods described in various possible designs of the second aspect.
  • the communication device is a chip provided in a communication device.
  • the communication device is a network device.
  • the transceiver is realized by, for example, an antenna, a feeder, a codec in the communication device, or, if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. Connect with the radio frequency transceiving component in the communication equipment, so as to realize the information transmission and reception through the radio frequency transceiving component. among them,
  • a transceiver for receiving a first signal, where the first signal is a preamble signal or a reference signal
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the processing module is configured to obtain the preamble sequence of the first signal in the following manner:
  • the at least one M-length codeword includes 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes;
  • the preamble sequence is obtained.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver is further configured to:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence .
  • the transceiver is further configured to:
  • Send second indication information where the second indication information is used to indicate the cyclic shift value of the 2k- th codeword among the at least two M-length codewords, and the cyclic shift value belongs to the second set, so
  • the second set includes at least two elements, and the differential modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • a fifth communication device is provided.
  • the communication device may be the first communication device in the above method design.
  • the communication device is a chip provided in a terminal device.
  • the communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the fifth communication device is caused to execute the foregoing first aspect or the method in any one of the possible implementation manners of the first aspect.
  • the fifth type of communication device may also include a communication interface, and the communication interface may be a transceiver in a terminal device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the fifth type of communication If the device is a chip set in a terminal device, the communication interface may be an input/output interface of the chip, such as input/output pins.
  • a sixth communication device may be the second communication device in the above method design.
  • the communication device is a chip set in a network device.
  • the communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the sixth communication device executes the second aspect or the method in any one of the possible implementation manners of the second aspect.
  • the sixth communication device may also include a communication interface, and the communication interface may be a transceiver in a network device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the sixth communication
  • the device is a chip set in a network device, and the communication interface may be an input/output interface of the chip, such as input/output pins.
  • a communication system may include the first communication device described in the third aspect, the third communication device described in the fifth aspect, or the fifth communication device described in the seventh aspect , And including the second communication device described in the fourth aspect, the fourth communication device described in the sixth aspect, or the sixth communication device described in the eighth aspect.
  • a computer storage medium stores instructions, which when run on a computer, cause the computer to execute the first aspect or any one of the possible designs of the first aspect The method described.
  • a computer storage medium stores instructions that, when run on a computer, cause the computer to execute the above-mentioned second aspect or any one of the possible designs of the second aspect The method described in.
  • a computer program product containing instructions.
  • the computer program product stores instructions that, when run on a computer, cause the computer to execute the first aspect or any one of the first aspects described above. The method described in the design.
  • a computer program product containing instructions.
  • the computer program product stores instructions that, when run on a computer, cause the computer to execute the second aspect or any one of the possibilities of the second aspect above. The method described in the design.
  • each of the at least two M-length codewords can be cycled individually, and the overall cycle of the sequence ⁇ c(n) ⁇ can be ensured by construction, and the receiving end can also reduce the complexity of reception.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the application
  • FIG. 2 is a flowchart of a signal sending and receiving method provided by an embodiment of this application
  • FIG. 3 is a schematic diagram of constructing a 4M-long codeword according to the method provided by an embodiment of the present application
  • FIG. 4A is another schematic diagram of constructing a 4M-long codeword according to the method provided by an embodiment of the present application.
  • FIG. 4B is a schematic diagram of constructing a 2M-long codeword according to the method provided by an embodiment of the present application.
  • FIG. 4C is another schematic diagram of constructing a 2M-length codeword according to the method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the processing procedure of the receiving end in an embodiment of the application.
  • FIG. 6 is a schematic diagram of a communication device capable of realizing the functions of a terminal device provided by an embodiment of the application;
  • FIG. 7 is a schematic diagram of a communication device capable of realizing the function of a network device provided by an embodiment of the application.
  • 8A to 8B are two schematic diagrams of a communication device provided by an embodiment of this application.
  • Terminal devices including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems.
  • the terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote Station (remote station), access point (access point, AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), or user Equipment (user device), etc.
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal devices, portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, smart wearable devices, and so on.
  • PCS personal communication service
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • Use such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.
  • Network equipment for example, includes access network (AN) equipment.
  • An access network device such as a base station (for example, an access point), may refer to a device that communicates with a wireless terminal device through one or more cells on an air interface in an access network.
  • the network device can be used to convert received air frames and Internet Protocol (IP) packets into each other, as a router between the terminal device and the rest of the access network, where the rest of the access network can include an IP network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-A), or It may also include the next generation node B (gNB) in the 5G NR system, or it may also include the centralized unit (CU) and the centralized unit (CU) in the cloud radio access network (CloudRAN) system.
  • Distributed unit (DU) is not limited in the embodiment of the present application.
  • the preamble is a signal used for time synchronization between terminal equipment and network equipment in the communication system.
  • Reference signal is a signal used for channel estimation or channel sounding in a communication system.
  • “Multiple” refers to two, three or more. In view of this, “multiple” may also be understood as “at least two” in the embodiments of the present application. "At least one” can be understood as one or more, for example, one, two, three or more. For example, including at least one means including one, two or more, and does not limit which ones are included. For example, including at least one of A, B and C, then the included can be A, B, C, A and B, A and C, B and C, or A and B and C. “At least two” can be understood as two, three or more.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance.
  • the first codeword and the second codeword are only used to distinguish different codewords, and do not indicate the difference in priority or importance of the two codewords.
  • the technical solutions provided by the embodiments of the present application can be applied to 5G NR systems, or can be applied to LTE systems, or can be applied to next-generation mobile communication systems or other similar communication systems, and are not specifically limited.
  • FIG. 1 is an application scenario of an embodiment of this application.
  • Figure 1 includes network equipment and terminal equipment, and the terminal equipment is connected to a network equipment.
  • the number of terminal devices in Figure 1 is just an example.
  • network devices can provide services for multiple terminal devices. All or some of the terminal devices in the multiple terminal devices can be provided by the embodiments of this application.
  • the method sends a signal to the network device.
  • the network device in FIG. 1 is, for example, a base station.
  • the network device corresponding to the different systems in different devices for example, in the fourth generation mobile communication technology (the 4 th generation, 4G) system
  • the eNB may correspond to, corresponding to the network device 5G 5G system, e.g. gNB.
  • the embodiment of the present application provides a first signal sending and receiving method. Please refer to FIG. 2 which is a flowchart of this method.
  • the application of this method to the network architecture shown in FIG. 1 is taken as an example.
  • the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a network device or can support the network device to implement the functions required by the method.
  • the communication device or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be other communication devices, such as a chip system. The same is true for the second communication device.
  • the second communication device may be a network device or a communication device capable of supporting the functions required by the network device to implement the method, or the second communication device may be a terminal device or capable of supporting the terminal device to implement the method.
  • the communication device with the required functions can of course also be other communication devices, such as a chip system.
  • the first communication device may be a network device
  • the second communication device may be a terminal device, or both the first communication device and the second communication device are network devices.
  • the device, or the first communication device and the second communication device are both terminal devices, or the first communication device is a network device, and the second communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on.
  • the network device is, for example, a base station.
  • the method is executed by the network device and the terminal device as an example, that is, the first communication device is the network device and the second communication device is the terminal device as an example. If this embodiment is applied to the network architecture shown in FIG. 1, therefore, the network device described below may be the network device in the network architecture shown in FIG. 1, and the terminal device described below may be the network device shown in FIG. 1. The terminal equipment in the network architecture shown.
  • the signal is called the first signal, for example;
  • the terminal device sends the preamble sequence, and the network device receives the preamble sequence, or it can be considered that the terminal device sends the first signal, and the network device also receives the first signal from the terminal device.
  • the first signal is a preamble signal or a reference signal;
  • the first signal is, for example, a preamble signal, or a reference signal, etc., which is not specifically limited.
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1
  • its superscript b means Is a vector of length 2 b M, for example Means Is a vector of length M,
  • the subscript a of represents a different sequence, that is to say, the subscript a is used to distinguish different sequences, for example with It means two different sequences.
  • a longer codeword can be constructed from an M-length codeword.
  • a 2M-length codeword can be constructed by two M-length codewords, such as the first codeword. And the second codeword It is two M-length codewords, through these two M-length codewords, a 2M-length codeword can be constructed, the codeword is for example (c(0), c(1),..., c(M-1 )), (c(M), c(M+1),..., c(2M-1)). If two 2M long codewords are constructed, then a 4M long codeword can be constructed through these two 2M long codewords.
  • Codewords can be constructed to obtain 8M long codewords. If two 8M long codewords are constructed, then 16M long codewords can be constructed through these two 8M long codewords, and so on.
  • the network device can assign a dedicated sequence to the user, and the dedicated sequence is the sequence ⁇ c(n) ⁇ or the sequence s.
  • the network device may configure a sequence set for the terminal device, and the sequence set can be shared by multiple terminal devices, for example, shared by terminal devices in one cell.
  • a sequence can be selected from the sequence set as sequence ⁇ c(n) ⁇ or sequence s, for example, the terminal device can be selected randomly.
  • the network device may configure a dedicated sequence set for the terminal device, and the dedicated sequence set is only used by the terminal device.
  • Different sequences in the dedicated sequence set can correspond to different information, and the terminal device can select a sequence from the dedicated sequence set as sequence ⁇ c(n) ⁇ or sequence s according to the information to be sent, that is, the terminal device passes Send information in a sequence selected way.
  • the dedicated sequence set configured by a network device for a terminal device contains 4 sequences, and these 4 sequences correspond to 2-bit information.
  • the terminal device can select the corresponding sequence from these 4 sequences according to the 2-bit information to be transmitted. . For example, if the 2-bit information to be transmitted by the terminal device is "11", the terminal device can select the sequence corresponding to the value "11" from these 4 sequences as the sequence ⁇ c(n) ⁇ or the sequence s.
  • the value of M can be specified through an agreement, or it can be determined by the network device and notified to the terminal device in advance.
  • the value of N can be stipulated by an agreement, or it can be determined by the network device and notified to the terminal device in advance.
  • the value of k can be stipulated by agreement, or it can be determined by network equipment and notified to terminal equipment in advance.
  • the at least two M-long codewords may be pre-configured by the network device to the terminal device, or may be specified through a protocol.
  • the codeword set of the cyclic code can be defined as a group of codewords, and the cyclic shift of any codeword in this group of codewords still belongs to this group of codewords.
  • about (Or modular N addition operation) can be defined as, "+" is the usual arithmetic addition, and mod means modulo operation.
  • the sequence s can be obtained by modulating the sequence ⁇ c(n) ⁇ , for example, the modulation method is binary phase shift keying (BPSK), or The modulation is either quaternary phase shift keying (QPSK) modulation or high-order modulation.
  • the modulation method is binary phase shift keying (BPSK)
  • the modulation is either quaternary phase shift keying (QPSK) modulation or high-order modulation.
  • the element c(n) in the sequence ⁇ c(n) ⁇ can be mapped to the N-order modulation symbol s(n)
  • the element c(n) in the sequence ⁇ c(n) ⁇ can be mapped to the N-order modulation symbol s(n)
  • s(n) is the element in the sequence s. It is the unit of imaginary number.
  • the terminal device can map the sequence s to the transmission resource for transmission.
  • it can forward mapping, for example, the element s(n) in the sequence s is mapped first, and the element s(n+1) in the sequence s After mapping, or when the terminal device maps the sequence s, the reverse mapping may also be used. For example, the element s(n+1) in the sequence s is mapped first, and the element s(n) in the sequence s is mapped later.
  • codeword To There is a mapping relationship between.
  • the mapping method can be implemented by looking up a table or generating a matrix, or can be implemented by other methods, and there is no specific limitation.
  • the sequence ⁇ c(n) ⁇ can be obtained through at least two M-length codewords. Then, the number of codewords used to generate the sequence ⁇ c(n) ⁇ is different, and the resulting sequence ⁇ c (n) ⁇ is different, or, as long as one codeword in at least two M-length codewords is different, the resulting sequence ⁇ c(n) ⁇ will be different, and the first of at least two M-length codewords
  • the codeword belongs to the codeword set of the first cyclic code
  • the second codeword in the at least two M-length codewords belongs to the codeword set of the second cyclic code, that is, the Each M-length codeword is cyclically separately, so for any one of the codewords, as long as the time domain cyclic shift is performed, another different codeword will be obtained.
  • first cyclic code and the second cyclic code may be different sub-codes of the same cyclic code, for example, the first cyclic code and the second cyclic code are both intercepted from the same cyclic code, or the first cyclic code
  • the cyclic code and the second cyclic code may also be sub-codes of different cyclic codes.
  • the first cyclic code and the second cyclic code are both truncated cyclic first-order Reed-Muller code words of length M, but the first cyclic code and the second cyclic code are different, or the first cyclic code Both the second cyclic code and the second cyclic code are truncated cyclic high-order Reed-Muller code words of length M, but the first cyclic code is different from the second cyclic code, or the first cyclic code is a truncated cyclic code
  • the codeword of length M in the first-order Reed-Muller code, the second cyclic code is the codeword of length M in the truncated cyclic high-order Reed-Muller code, and so on.
  • At least two M-length codewords can be subcodes of the same cyclic code, or at least two M-length codewords are subcodes of at least two cyclic codes. Code, where different codewords are subcodes of different cyclic codes, or at least two M-length codewords are subcodes of D cyclic codes, and D is a positive integer less than or equal to M, that is, at least two In an M-length codeword, multiple codewords may be different subcodes of the same cyclic code, or a single codeword may be a subcode of a cyclic code, and so on.
  • the embodiment of the present application does not limit the selection manner of at least two M-length codewords, as long as each of the at least two M-length codewords is a cyclic codeword.
  • the sequence ⁇ c(n) ⁇ is not a constant sequence.
  • a constant sequence means that every element of the sequence is the same. If the sequence ⁇ c(n) ⁇ is a constant sequence, then the different cyclic shifts of the sequence ⁇ c(n) ⁇ are the same. If the different cyclic shifts of the sequence ⁇ c(n) ⁇ are allocated to different terminal devices for use , The sequence ⁇ c(n) ⁇ used by each terminal device is the same. For the network device, it is impossible to distinguish which sequence comes from which terminal device, which will cause the network device to receive errors and cannot distinguish the delay of the terminal device. information. Therefore, the sequence ⁇ c(n) ⁇ can be made not a constant sequence to reduce interference between terminal devices and improve the reception success rate of network devices.
  • Different sequences in the sequence set composed of sequence ⁇ s(n) ⁇ may be allocated to different terminal devices. If the two sequences differ by only a constant, the network device may not be able to distinguish the two sequences.
  • any two sequences ⁇ s 1 (n) ⁇ and ⁇ s 2 (n) ⁇ in the sequence set composed of ⁇ s(n) ⁇ can meet the above conditions, And doing so can also improve the reception success rate of network devices.
  • a 4M long codeword can be constructed by two 2M long codewords. For example, a 4M long codeword is (c(0), c(1),..., c(2M-1) ), (c(2M), c(2M+1),...,c(4M-1)).
  • the codeword To Mapping relationship and codeword To The mapping relationship among them may be the same kind of mapping relationship or different mapping relationships.
  • M 31
  • Figure 3 it can be seen from Figure 3 that according to with These two M-length codewords are constructed to obtain a 2M-length codeword, and according to with The two M-length codeword structures obtain a 2M-length codeword, and then the 4M-length codeword is obtained according to the two 2M-length codeword structures.
  • z3(n+5) (z3(n)+z3(n+2))mod2
  • z4(n+5) (z4(n)+z4(n+2)+z4(n+3) +z4(n+4))mod2.
  • the initial state of the shift register sequence is determined, or the cyclic shift value of the shift register sequence is determined, and the corresponding shift register sequence is determined. For example, determined with The initial state of the shift register sequence, or the cyclic shift value of the shift register sequence, is also determined with
  • Figure 3 shows an example of constructing a 4M-long codeword in a linear manner, and an example of constructing a 4M-length codeword in a nonlinear manner will be introduced below.
  • v2 is a 31-long cyclic code, such as [1,1,1,...,1] or [0,0,0,...,0].
  • v3 is constructed from u2 and v2 and can be expressed as
  • u1′(v1) is a code word of 31 length,
  • g2 is a 6 ⁇ 31 generator matrix:
  • g2 [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ,0 ,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,0, 1,1,1,0,0,0,0,1,1,1,0,0,0,0,1,0,0,0,1,0 ,0,0,1,1 0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0
  • u3 is constructed by u1, v1 and u1′(v1), which can be expressed as
  • a 2M-long codeword can be constructed through two M-length codewords, and the two M-length codewords are cyclic codes, and it can be ensured that the constructed 2M-length codeword is a cyclic code.
  • the two M-length codewords can also be constructed from two M/2-length codewords in the same manner.
  • the M/2-length codeword can also be The codeword passing M/4 is constructed in the same way, and so on.
  • a 2M-long codeword is obtained through the first codeword and the second codeword.
  • the first codeword can be constructed from two M/2 codewords
  • the second codeword can also be constructed from two M/ 2 long codeword structure is obtained.
  • the first codeword and the second codeword are both M-length codewords, and the first codeword Meet the first condition, or, the second code word Meet the second condition, or, the first codeword Meet the first condition, and the second code word Meet the second condition.
  • the first condition includes: among them for Long vector, and among them for Long vector, and Is the ninth code word, Is the tenth codeword, the ninth codeword belongs to the codeword set of the ninth cyclic code, and the tenth codeword belongs to the codeword set of the tenth cyclic code,
  • the value of the element included in the ninth codeword belongs to the first set
  • the value of the element included in the tenth codeword belongs to the first set, where N is an integer greater than 1
  • Represents modulo N addition operation, the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the second condition includes: among them for Long vector, and among them for Long vector, and among them, Is the eleventh codeword, Is the twelfth codeword, the eleventh codeword belongs to the codeword set of the eleventh cyclic code, and the twelfth codeword belongs to the codeword set of the twelfth cyclic code, With related For a long vector, the values of the elements included in the eleventh codeword belong to the first set, and the values of the elements included in the twelfth codeword belong to the first set.
  • Figure 4B As can be seen from Figure 4B, according to with The two M/2-length codewords are constructed to obtain the M-length codeword, and according to with The two M/2-length codewords are constructed to obtain an M-length codeword, and the two M-length codewords are constructed to obtain a 2M-length codeword.
  • z3(n+5) (z3(n)+z3(n+2))mod 2
  • z4(n+5) (z4(n)+z4(n+2)+z4(n+3 )+z4(n+4))mod 2.
  • the initial state of the shift register sequence is determined, or the cyclic shift value of the shift register sequence is determined, and the corresponding shift register sequence is also determined. For example, determined with The initial state of the shift register sequence, or the cyclic shift value of the shift register sequence, is also determined with
  • FIG. 4B shows an example of constructing a 2M-long codeword in a linear manner, and an example of constructing a 2M-long codeword in a nonlinear manner will be introduced below.
  • M/2 31
  • Figure 4C for this example.
  • v2 is a 31-long cyclic code, such as [1,1,1,...,1] or [0,0,0,...,0].
  • u1′(v1) is a code word of 31 length,
  • g2 is a 6 ⁇ 31 generator matrix:
  • g2 [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 ,0 ,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,1,0, 1,1,1,0,0,0,0,1,1,1,0,0,0,0,1,0,0,0,1,0 ,0,0,1,1 0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0
  • a 2M-length codeword is obtained through the first codeword and the second codeword.
  • the first codeword can be constructed from two M/2-length ninth codewords and tenth codewords.
  • the second codeword is also It can be constructed from two M/2 long eleventh codewords and twelfth codewords.
  • the conditions satisfied by the codeword may include one of the following or any combination of the following multiple: the ninth codeword meets the third condition, the tenth codeword meets the fourth condition, and the eleventh codeword meets the The fifth condition, or, the twelfth codeword satisfies the sixth condition.
  • the ninth codeword meets the third condition, the tenth codeword meets the fourth condition, the eleventh codeword meets the fifth condition, and the twelfth codeword meets the sixth condition, or the ninth codeword meets the third condition.
  • the tenth codeword does not meet the fourth condition, the eleventh codeword does not meet the fifth condition, and the twelfth codeword meets the sixth condition, or the ninth codeword does not meet the third condition
  • the ninth codeword meets the third condition
  • the tenth codeword meets the fourth condition, and the eleventh codeword
  • the word does not meet the fifth condition, and the twelfth code word does not meet the sixth condition, and so on.
  • the third condition includes: among them for Long vector, and among them for Long vector, and among them, Is the thirteenth codeword, Is the fourteenth codeword, the thirteenth codeword belongs to the codeword set of the thirteenth cyclic code, and the fourteenth codeword belongs to the codeword set of the fourteenth cyclic code, With related For a long vector, the values of the elements included in the thirteenth codeword belong to the first set, and the values of the elements included in the fourteenth codeword belong to the first set.
  • the fourth condition includes: among them for Long vector, and or, among them for Long vector, and among them, Is the fifteenth code word, Is the sixteenth codeword, the fifteenth codeword belongs to the codeword set of the fifteenth cyclic code, and the sixteenth codeword belongs to the codeword set of the sixteenth cyclic code, With related For a long vector, the values of the elements included in the fifteenth codeword belong to the first set, and the values of the elements included in the sixteenth codeword belong to the first set.
  • the fifth condition includes: among them for Long vector, and among them for Long vector, and among them, Is the seventeenth codeword, Is the eighteenth codeword, the seventeenth codeword belongs to the codeword set of the seventeenth cyclic code, and the eighteenth codeword belongs to the codeword set of the eighteenth cyclic code, With related For a long vector, the values of the elements included in the seventeenth codeword belong to the first set, and the values of the elements included in the eighteenth codeword belong to the first set.
  • the sixth condition includes: among them for Long vector, and among them for Long vector, and among them, Is the nineteenth code word, Is the twentieth codeword, the nineteenth codeword belongs to the codeword set of the nineteenth cyclic code, and the twentieth codeword belongs to the codeword set of the twentieth cyclic code, With related For a long vector, the values of the elements included in the nineteenth codeword belong to the first set, and the values of the elements included in the twentieth codeword belong to the first set.
  • a 8M-long codeword can be constructed by two 4M-long codewords.
  • the 8M-long codeword is for example (c(0), c(1),...,c(4M-1)), (c(4M) , C(4M+1),...,c(8M-1)).
  • the codeword To Mapping relationship, code word To Mapping relationship, code word To Mapping relationship and codeword To The four mapping relationships can be the same mapping relationship, or they can be different mapping relationships, or at least two of the four mapping relationships may be the same mapping relationship. Except for at least two of the four mapping relations, the remaining mapping relations are different mapping relations. Then when constructing longer codewords, more mapping relationships are also understood in the same way.
  • the above are two examples for constructing a 4M-long codeword and an 8M-long codeword. If a longer codeword needs to be constructed, the method is similar, so I won’t repeat it.
  • the description of the first codeword, the second codeword, or the third codeword is only for distinguishing different codewords, and does not limit the order of each codeword. For example, for a 2M codeword, the first A codeword may not necessarily be arranged before the second codeword, or for a 4M-length codeword, the third codeword may not necessarily be arranged before the fourth codeword, and so on.
  • At least two M-length codewords include 2 k codewords, which are respectively This 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • the terminal device can adjust the uplink transmission timing through the uplink timing advance information, so that the signals sent by each terminal device can reach the network device at the same time as possible. In the absence of uplink timing advance information, the farther the terminal device is from the network device, the later the signal sent by the terminal device will reach the network device.
  • the current RACH sequence is implemented by the ZC sequence
  • the ZC sequence is a complete cyclic sequence
  • the network device can obtain the delay information of the terminal device in the form of a complete cycle of the ZC sequence.
  • the sequence ⁇ c(n) ⁇ obtained by using at least two M-length codewords can be cyclic as a whole, and each codeword in the at least two M-length codewords can also be its own Circular.
  • the first 2 k codewords e.g. codewords network device after receiving the first signal to be decoded first the cyclic shift value of 2 k codewords may belong to a second set, the second set comprising at least two elements, at least two The difference between any two of the elements is greater than or equal to L after modulo M, and L is an integer greater than 1.
  • L is an integer greater than 1.
  • the network device may send the second indication information to the terminal device, and the second indication information may be used to indicate the cyclic shift value of the 2k- th codeword.
  • the terminal device receives a second indication information, you can determine the cyclic shift value of 2 k codewords.
  • the cyclic shift value of a codeword that is, the codeword can obtain different codewords through the cyclic shift value.
  • the network device needs to decode the 2k- th codeword first. If the M-length codewords assigned to two terminal devices, only the 2k- th codeword is different (among which, because the terminal device may all need to send to the network device Therefore, the technical solution provided in the embodiments of this application is applicable to multiple terminal devices.
  • the network device can assign different codewords to the terminal devices, and each terminal device can be assigned at least two codewords, and the codeword of terminal devices, as long as one code word different, it indicates that different), if the cyclic shift value of 2 k codewords allocated to the codeword small terminal device, the terminal equipment and two If the delay between the two terminals is similar, the signals received by the network device from the two terminal devices may be completely the same, so that the network device cannot distinguish the delay information of different terminal devices.
  • the present embodiment mode application through the second set, so that the first cycle 2 k codewords shift value is larger, so that the network delay information decoding apparatus according to the second codeword 2 k, the terminal device may be determined, so that the present application
  • the technical solution of the embodiment can also be applied to the case where there is no uplink timing advance information.
  • the sequence ⁇ c(n) ⁇ may also have a cyclic shift value
  • the cyclic shift value of the sequence ⁇ c(n) ⁇ may belong to the third set
  • the third set may include at least two Elements, the difference between any two elements of the at least two elements is greater than or equal to L after the difference modulus 2M, and L is an integer greater than 1.
  • the network device may send the first indication information to the terminal device, and the first indication information may be used to indicate the cyclic shift value of the sequence ⁇ c(n) ⁇ . After receiving the first indication information, the terminal device can determine the cyclic shift value of the sequence ⁇ c(n) ⁇ .
  • sequences may be free of ⁇ c (n) ⁇ and the cyclic shift values of cyclic shift values of 2 k codewords associated with, or, the sequence ⁇ c (n) ⁇ and the cyclic shift value 2 k code
  • the cyclic shift values of words can also satisfy a certain functional relationship.
  • the cyclic shift value of the sequence ⁇ c(n) ⁇ and the cyclic shift value of the 2k- th codeword may be equal or different.
  • sequence ⁇ c(n) ⁇ corresponding to different cyclic shift values can be allocated to different terminal devices.
  • the embodiment of the present application uses the third set method to make the cyclic shift value of the sequence ⁇ c(n) ⁇ larger, so that the network device can determine the delay information of the terminal device according to the sequence ⁇ c(n) ⁇ , so that the current
  • the technical solution of the application embodiment can also be applied to the case where there is no uplink timing advance information.
  • the shift register sequence can obtain different sequences by fixing the initial value and using different cyclic shift values.
  • the sequence generated in this way meets the characteristics of the cyclic code, and can be different by indicating the cyclic shift value.
  • the terminal devices are assigned different sequences.
  • At least two of M length codeword includes only 2 k code words, M is the number of the at least two codewords of length 2 k, then one of the 2 k th
  • the cyclic code (that is, the 2k- th codeword) can be a shift register sequence.
  • the shift register sequence described in the embodiment of the present application may be generated by a shift register, or may also be generated by other means, but conforms to the characteristics of the sequence generated by the shift register.
  • the preamble sequence of the first signal can be obtained.
  • the network device can generate at least two M-length codewords, and at least one M-length codeword includes 2 k codewords, which are This codeword 2 k 2 k codewords belong to a set of cyclic codes, wherein a code word belonging to a set cyclic code codeword, the network device can be obtained according to at least two preamble codeword length M.
  • Network equipment first detected one of them Is a sequence generated locally by a network device, Is the part of the sequence y that only includes v, for example Indicates that only v is left after removing u in sequence y.
  • the network device can further detect one of them That is, only the u part is included in the received signal, Is a sequence generated locally by a network device, Indicates that the network device performs a cross-correlation operation on the sequence generated locally by the network device and the portion of the received signal y that only includes u, and u 0 represents the portion of u detected by the network device.
  • the network device can decode the part that only includes v in the received sequence, and then decode the part that only includes u in the received sequence. There is no need to decode the entire received sequence, which reduces the complexity of receiving the network device. In addition, there is basically no sacrifice in performance.
  • FIG. 6 shows a schematic structural diagram of a communication device 600.
  • the communication device 600 can implement the functions of the terminal device mentioned above.
  • the communication device 600 may be the network device described above, or may be a chip set in the network device described above.
  • the communication device 600 may include a processor 601 and a transceiver 602.
  • the processor 601 may be used to execute S21 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein.
  • the processor 601 may be used to execute the above-mentioned terminal equipment except for receiving and sending. All other processes or part of other processes outside the process.
  • the transceiver 602 can be used to perform S22 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein, for example, it can perform all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the transceiver 602 is configured to send the preamble sequence.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver 602 is also used for:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the at least two M-length codewords include 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence.
  • the transceiver 602 is also used for:
  • the second indication information is used to indicate the cyclic shift value of the 2k- th codeword in the at least two M-length codewords, where the cyclic shift value belongs to the first Two sets, the second set includes at least two elements, the difference modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • FIG. 7 shows a schematic structural diagram of a communication device 700.
  • the communication apparatus 700 can implement the functions of the first terminal device mentioned above.
  • the communication apparatus 700 may be the first terminal device described above, or may be a chip set in the first terminal device described above.
  • the communication device 700 may include a processor 701 and a transceiver 702.
  • the processor 701 may be used to execute S23 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein.
  • the processor 701 may be used to execute the above-mentioned network device except for receiving and sending. All other processes or part of other processes outside the process.
  • the transceiver 702 may be used to perform S22 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein, for example, it may perform all the transceiving processes performed by the network device described above. Or part of the sending and receiving process.
  • the transceiver 702 is configured to receive a first signal, where the first signal is a preamble signal or a reference signal;
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the processor 701 is configured to obtain the preamble sequence of the first signal in the following manner:
  • the at least one M-length codeword includes 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes;
  • the preamble sequence is obtained.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver 702 is also used for:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence.
  • the transceiver 702 is also used for:
  • Send second indication information where the second indication information is used to indicate the cyclic shift value of the 2k- th codeword among the at least two M-length codewords, and the cyclic shift value belongs to the second set, so
  • the second set includes at least two elements, and the differential modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • the communication device 600 or the communication device 700 can also be implemented by the structure of the communication device 800 as shown in FIG. 8A.
  • the communication device 800 can implement the functions of the terminal equipment or network equipment mentioned above.
  • the communication device 800 may include a processor 801.
  • the processor 801 may be used to execute S21 in the embodiment shown in FIG. 2 and/or to support the technology described herein. Other processes, for example, all other processes or part of other processes performed by the terminal equipment described above except for the sending and receiving process may be executed; or, the communication device 800 is used to implement the functions of the network equipment mentioned above At this time, the processor 801 may be used to execute S23 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein. For example, the processor 801 may be used to execute the above-mentioned network device except for receiving and sending. All other processes or part of other processes outside the process.
  • the communication device 800 can use field-programmable gate array (FPGA), application specific integrated circuit (ASIC), system on chip (SoC), and central processor (central processor). unit, CPU), network processor (network processor, NP), digital signal processing circuit (digital signal processor, DSP), microcontroller (microcontroller unit, MCU), or programmable controller (programmable logic device, PLD) or other integrated chips, the communication device 800 can be set in the terminal device or the network device in the embodiment of the present application, so that the terminal device or the network device implements the method provided in the embodiment of the present application.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • central processor central processor
  • the communication device 800 may include a transceiver component for communicating with other devices through the device where the communication device 800 is located.
  • the transceiver component can be used to perform S22 in the embodiment shown in FIG. 2 and/or to support the functions described herein. Other processes of technology.
  • the communication device 800 may further include a memory 802, as shown in FIG. 8B, where the memory 802 is used to store computer programs or instructions, and the processor 801 is used to decode and execute these computer programs or instruction.
  • these computer programs or instructions may include functional programs of the aforementioned terminal devices or network devices.
  • the terminal device can be enabled to implement the function of the terminal device in the method provided in the embodiment shown in FIG. 2 of the embodiment of the present application.
  • the function program of the network device is decoded and executed by the processor 801
  • the network device can realize the function of the network device in the method provided in the embodiment shown in FIG. 2 of the embodiment of the present application.
  • the functional programs of these terminal devices or network devices are stored in a memory external to the communication device 800.
  • the memory 802 temporarily stores part or all of the above-mentioned functional program of the terminal device.
  • the function program of the network device is decoded and executed by the processor 801, the memory 802 temporarily stores part or all of the content of the function program of the network device.
  • the functional programs of these terminal devices or network devices are set in the memory 802 stored in the communication device 800.
  • the communication device 800 may be set in the terminal device in the embodiment of the present application.
  • the memory 802 inside the communication device 800 stores the function program of the network device
  • the communication device 800 may be set in the network device of the embodiment of the present application.
  • part of the content of the functional programs of these terminal devices is stored in a memory outside the communication device 800, and other parts of the content of the functional programs of these terminal devices are stored in the memory 802 inside the communication device 800.
  • part of the content of the functional programs of these network devices is stored in a memory outside the communication device 800, and other parts of the content of the functional programs of these network devices are stored in the memory 802 inside the communication device 800.
  • the communication device 600, the communication device 700, and the communication device 800 are presented in the form of dividing each functional module corresponding to each function, or may be presented in the form of dividing each functional module in an integrated manner.
  • the "module” here can refer to an ASIC, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above-mentioned functions.
  • the communication device 600 provided by the embodiment shown in FIG. 6 may also be implemented in other forms.
  • the communication device includes a processing module and a transceiver module.
  • the processing module may be implemented by the processor 601, and the transceiver module may be implemented by the transceiver 602.
  • the processing module can be used to perform S21 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein, for example, it can perform the above-mentioned terminal equipment other than the sending and receiving process. All other processes or part of other processes.
  • the transceiving module can be used to perform S22 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein, for example, it can perform all the transceiving processes or processes performed by the terminal device described above. Part of the sending and receiving process.
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the transceiver module is used to send the preamble sequence.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver module is also used to:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the at least two M-length codewords include 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence.
  • the transceiver module is also used to:
  • the second indication information is used to indicate the cyclic shift value of the 2k- th codeword in the at least two M-length codewords, where the cyclic shift value belongs to the first Two sets, the second set includes at least two elements, the difference modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • the communication device 700 provided by the embodiment shown in FIG. 7 may also be implemented in other forms.
  • the communication device includes a processing module and a transceiver module.
  • the processing module may be implemented by the processor 701, and the transceiver module may be implemented by the transceiver 702.
  • the processing module can be used to execute S23 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described in this article, for example, can execute the processes performed by the network device described above in addition to the transceiving process. All other processes or part of other processes.
  • the transceiving module can be used to perform S22 in the embodiment shown in FIG. 2 and/or to support other processes of the technology described herein, for example, it can perform all the transceiving processes or processes performed by the network device described above. Part of the sending and receiving process.
  • the transceiver module is configured to receive a first signal, where the first signal is a preamble signal or a reference signal;
  • the sequence ⁇ c(n) ⁇ is obtained through at least two M-length codewords, and the at least two M-length codewords include the first codeword And the second code word
  • the elements in the sequence ⁇ c(n) ⁇ satisfy:
  • the first codeword belongs to the codeword set of the first cyclic code
  • the second codeword belongs to the codeword set of the second cyclic code
  • both M and k are positive integers
  • N is an integer greater than 1.
  • the It belongs to the codeword set of the twenty-first cyclic code.
  • the processing module is configured to obtain the preamble sequence of the first signal in the following manner:
  • the at least one M-length codeword includes 2 k codewords, which are respectively The 2 k codewords are 2 k code words belonging to a set of cyclic codes;
  • the preamble sequence is obtained.
  • the k is greater than or equal to 2.
  • the values of elements included in the ninth codeword belong to the first set, and the values of elements included in the tenth codeword belong to the first set,
  • the values of the elements included in the eleventh codeword belong to the first set, the values of the elements included in the twelfth codeword belong to the first set, and N is an integer greater than 1, Represents modulo N addition operation, and the first set is ⁇ 0,1,...,N-1 ⁇ .
  • the conditions satisfied by the codeword include one of the following or any combination of the following multiple:
  • the sequence ⁇ c(n) ⁇ is not a constant sequence, and each element included in the constant sequence is the same.
  • the transceiver module is also used to:
  • Receive first indication information from a network device where the first indication information is used to indicate a cyclic shift value of the sequence ⁇ c(n) ⁇ , the cyclic shift value belongs to a third set, and the third set includes at least Two elements, the difference modulus of any two of the at least two elements is greater than or equal to L after 2M, and L is an integer greater than 1.
  • the number of codewords of the at least two M-length codewords is 2k
  • the 2kth cyclic code is a shift register sequence.
  • the transceiver module is also used to:
  • Send second indication information where the second indication information is used to indicate the cyclic shift value of the 2k- th codeword among the at least two M-length codewords, and the cyclic shift value belongs to the second set, so
  • the second set includes at least two elements, and the differential modulus M of any two of the at least two elements is greater than or equal to L, and L is an integer greater than 1.
  • the communication device 600, the communication device 700, and the communication device 800 provided in the embodiments of the present application can be used to execute the method provided in the embodiment shown in FIG. 2, the technical effects that can be obtained can refer to the above method embodiments. No longer.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another readable storage medium. For example, the computer instructions may be passed from a website, computer, server, or data center.
  • Wired for example, coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)
  • wireless for example, infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc (DVD)), or a semiconductor medium (for example, a solid state disk (SSD)). ))Wait.

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Abstract

一种信号发送、接收方法及装置,通过至少两个M长的码字得到序列{c(n)},那么,用于生成序列{c(n)}的码字的数量不同,得到的序列{c(n)}就不同,或者,至少两个M长的码字中只要有一个码字不同,得到的序列{c(n)}也不同。至少两个M长的码字中的每个M长的码字是分别循环的,对于其中的任何一个码字来说,只要进行时域循环移位,就会得到另一个不同的码字,可见,因为至少两个M长的码字有足够多的变换方式,因此可得到较多的序列{c(n)},从而满足对于序列的数量的需求。而且至少两个M长的码字中的每个码字可以单独循环,通过构造可以保证序列{c(n)}整体循环,对于接收端来说,也可以减小接收的复杂度。

Description

一种信号发送、接收方法及装置
相关申请的交叉引用
本申请要求在2019年1月21日提交国家知识产权局、申请号为201910054857.4、申请名称为“一种信号发送、接收方法及装置”的中国专利申请的优先权,以及要求在2019年7月11日提交国家知识产权局、申请号为201910626252.8、申请名称为“一种信号发送、接收方法及装置”的中国专利申请的优先权,这两篇中国专利申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种信号发送、接收方法及装置。
背景技术
随机接入信道(random access channel,RACH)是无线通信系统中的上行信道。例如在第五代移动通信技术(the 5 th generation,5G)新无线(new radio,NR)系统中,RACH信号采用的是Zadoff-Chu(ZC)序列,例如139长的Zadoff-Chu序列,或者839长的Zadoff-Chu序列。为了克服不同终端设备发射的RACH信号到达网络设备的时间不同的问题,终端设备发送的RACH信号还增加了循环前缀(cyclic prefix,CP)。
长度为N的Zadoff-Chu序列,共有N-1个不同的根序列(root sequences)。同一个根序列可以通过时域循环移位生成多个序列。一个小区一般会被分配多个RACH序列,供该小区中的终端设备使用,同一个小区的RACH序列可以是对应不同的根序列的Zadoff-Chu序列,或者也可以是对应于同一个根序列的Zadoff-Chu序列的不同的时域循环移位序列。当系统中存在的终端设备的个数增加时,不同的终端设备选择到相同的RACH序列的概率增加,导致RACH接入冲突概率变大。为了减少碰撞概率,需要更多的RACH序列。或者,也可以预先为不同的终端设备分配不同的RACH序列,当需要支持的终端设备较多时,需要更多的RACH序列。又或者,RACH接入时,可能需要通过不同的RACH序列携带更多的信息,这也需要更多的RACH序列。
可见,目前的趋势是需要更多的RACH序列,而使用ZC序列作为RACH序列时可能无法满足此要求。
发明内容
本申请实施例提供一种信号发送、接收方法及装置,用于提供更多的序列。
第一方面,提供一种信号发送方法,所述信号为前导信号或参考信号,该方法包括:
根据长度为2 kM的序列s生成所述信号的前导序列,所述序列s中的元素
Figure PCTCN2020070322-appb-000001
或者
Figure PCTCN2020070322-appb-000002
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000003
表示下取整,
Figure PCTCN2020070322-appb-000004
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000005
以及第二码字
Figure PCTCN2020070322-appb-000006
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000007
其中
Figure PCTCN2020070322-appb-000008
为M长的向量,且
Figure PCTCN2020070322-appb-000009
或,
Figure PCTCN2020070322-appb-000010
Figure PCTCN2020070322-appb-000011
其中
Figure PCTCN2020070322-appb-000012
为M长的向量,且
Figure PCTCN2020070322-appb-000013
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000014
是与
Figure PCTCN2020070322-appb-000015
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000016
表示模N加运算,所述第一集合为{0,1,…,N-1};
发送所述前导序列。
该方法可由第一通信装置执行,第一通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片系统。这里以第一通信装置是终端设备为例。
在本申请实施例中,可以通过至少两个M长的码字得到序列{c(n)},那么,用于生成序列{c(n)}的码字的数量不同,得到的序列{c(n)}就不同,或者,至少两个M长的码字中只要有一个码字不同,得到的序列{c(n)}也不同,而且至少两个M长的码字中的第一码字属于第一循环码的码字集合,至少两个M长的码字中的第二码字属于第二循环码的码字集合,也就是说,至少两个M长的码字中的每个M长的码字是分别循环的,那么对于其中的任何一个码字来说,只要进行时域循环移位,就会得到另一个不同的码字,可见,因为至少两个M长的码字有足够多的变换方式,因此可以得到较多的序列{c(n)},从而满足对于序列的数量的需求。而且,至少两个M长的码字中的每个码字可以单独循环,通过构造后保证序列{c(n)}整体循环,对于接收端来说,也可以减小接收的复杂度。
结合第一方面,在第一方面的一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000017
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000018
Figure PCTCN2020070322-appb-000019
Figure PCTCN2020070322-appb-000020
Figure PCTCN2020070322-appb-000021
Figure PCTCN2020070322-appb-000022
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000023
给出了
Figure PCTCN2020070322-appb-000024
Figure PCTCN2020070322-appb-000025
的几种实现方式。使得
Figure PCTCN2020070322-appb-000026
Figure PCTCN2020070322-appb-000027
满足如上的条件,可以保证序列{c(n)}是整体循环的。
结合第一方面,在第一方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000028
属于第二十一循环码的码字集合。
Figure PCTCN2020070322-appb-000029
也是循环码,可以保证序列{c(n)}是整体循环的。
结合第一方面,在第一方面的一种可能的实施方式中,所述序列s的元素满足
Figure PCTCN2020070322-appb-000030
其中
Figure PCTCN2020070322-appb-000031
满足:
Figure PCTCN2020070322-appb-000032
或,
Figure PCTCN2020070322-appb-000033
其中
Figure PCTCN2020070322-appb-000034
为M长的向量,且
Figure PCTCN2020070322-appb-000035
或,
Figure PCTCN2020070322-appb-000036
或,
Figure PCTCN2020070322-appb-000037
其中
Figure PCTCN2020070322-appb-000038
为M长的向量,且
Figure PCTCN2020070322-appb-000039
其中,
Figure PCTCN2020070322-appb-000040
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000041
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000042
是与
Figure PCTCN2020070322-appb-000043
相关的M长的向量,所述k大于或等于2。
这里给出了采用本申请实施例的方法,通过4个M长的码字构造4M长的码字的一种示例。
结合第一方面,在第一方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000044
Figure PCTCN2020070322-appb-000045
其中:
Figure PCTCN2020070322-appb-000046
其中,
Figure PCTCN2020070322-appb-000047
Figure PCTCN2020070322-appb-000048
或,
Figure PCTCN2020070322-appb-000049
Figure PCTCN2020070322-appb-000050
或,
Figure PCTCN2020070322-appb-000051
其中
Figure PCTCN2020070322-appb-000052
是与
Figure PCTCN2020070322-appb-000053
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-000054
Figure PCTCN2020070322-appb-000055
或,
Figure PCTCN2020070322-appb-000056
Figure PCTCN2020070322-appb-000057
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000058
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000059
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000060
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000061
均为M长的向量,
Figure PCTCN2020070322-appb-000062
是与
Figure PCTCN2020070322-appb-000063
相关的M长的向量,
Figure PCTCN2020070322-appb-000064
是与
Figure PCTCN2020070322-appb-000065
相关的M长的向量,所述k大于或等于3。
这里给出了采用本申请实施例的方法,通过8个M长的码字构造8M长的码字的一种示例。
结合第一方面,在第一方面的一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000066
满足:
Figure PCTCN2020070322-appb-000067
Figure PCTCN2020070322-appb-000068
其中
Figure PCTCN2020070322-appb-000069
Figure PCTCN2020070322-appb-000070
长的向量,且
Figure PCTCN2020070322-appb-000071
Figure PCTCN2020070322-appb-000072
Figure PCTCN2020070322-appb-000073
其中
Figure PCTCN2020070322-appb-000074
Figure PCTCN2020070322-appb-000075
长的向量,且
Figure PCTCN2020070322-appb-000076
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000077
满足
Figure PCTCN2020070322-appb-000078
Figure PCTCN2020070322-appb-000079
其中
Figure PCTCN2020070322-appb-000080
Figure PCTCN2020070322-appb-000081
长的向量,且
Figure PCTCN2020070322-appb-000082
Figure PCTCN2020070322-appb-000083
Figure PCTCN2020070322-appb-000084
其中
Figure PCTCN2020070322-appb-000085
Figure PCTCN2020070322-appb-000086
长的向量,且
Figure PCTCN2020070322-appb-000087
其中,
Figure PCTCN2020070322-appb-000088
为第九码字,
Figure PCTCN2020070322-appb-000089
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000090
是与
Figure PCTCN2020070322-appb-000091
相关的
Figure PCTCN2020070322-appb-000092
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000093
为第十一码字,
Figure PCTCN2020070322-appb-000094
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000095
是与
Figure PCTCN2020070322-appb-000096
相关的
Figure PCTCN2020070322-appb-000097
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000098
表示模N加运算,所述第一集合为{0,1,…,N-1}。
这里给出了采用本申请实施例的方法,通过4个M/2长的码字构造2M长的码字的一种示例。
结合第一方面,在第一方面的一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000099
满足:
Figure PCTCN2020070322-appb-000100
Figure PCTCN2020070322-appb-000101
其中
Figure PCTCN2020070322-appb-000102
Figure PCTCN2020070322-appb-000103
长的向量,且
Figure PCTCN2020070322-appb-000104
Figure PCTCN2020070322-appb-000105
其中
Figure PCTCN2020070322-appb-000106
Figure PCTCN2020070322-appb-000107
长的向量,且
Figure PCTCN2020070322-appb-000108
所述第十码字
Figure PCTCN2020070322-appb-000109
满足:
Figure PCTCN2020070322-appb-000110
Figure PCTCN2020070322-appb-000111
其中
Figure PCTCN2020070322-appb-000112
Figure PCTCN2020070322-appb-000113
长的向量,且
Figure PCTCN2020070322-appb-000114
Figure PCTCN2020070322-appb-000115
其中
Figure PCTCN2020070322-appb-000116
Figure PCTCN2020070322-appb-000117
长的向量,且
Figure PCTCN2020070322-appb-000118
所述第十一码字
Figure PCTCN2020070322-appb-000119
满足:
Figure PCTCN2020070322-appb-000120
Figure PCTCN2020070322-appb-000121
其中
Figure PCTCN2020070322-appb-000122
Figure PCTCN2020070322-appb-000123
长的向量,且
Figure PCTCN2020070322-appb-000124
Figure PCTCN2020070322-appb-000125
其中
Figure PCTCN2020070322-appb-000126
Figure PCTCN2020070322-appb-000127
长的向量,且
Figure PCTCN2020070322-appb-000128
或,
所述第十二码字
Figure PCTCN2020070322-appb-000129
满足:
Figure PCTCN2020070322-appb-000130
Figure PCTCN2020070322-appb-000131
其中
Figure PCTCN2020070322-appb-000132
Figure PCTCN2020070322-appb-000133
长的向量,且
Figure PCTCN2020070322-appb-000134
Figure PCTCN2020070322-appb-000135
其中
Figure PCTCN2020070322-appb-000136
Figure PCTCN2020070322-appb-000137
长的向量,且
Figure PCTCN2020070322-appb-000138
其中,
Figure PCTCN2020070322-appb-000139
为第十三码字,
Figure PCTCN2020070322-appb-000140
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000141
是与
Figure PCTCN2020070322-appb-000142
相关的
Figure PCTCN2020070322-appb-000143
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000144
为第十五码字,
Figure PCTCN2020070322-appb-000145
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000146
是与
Figure PCTCN2020070322-appb-000147
相关的
Figure PCTCN2020070322-appb-000148
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000149
为第十七码字,
Figure PCTCN2020070322-appb-000150
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000151
是与
Figure PCTCN2020070322-appb-000152
相关的
Figure PCTCN2020070322-appb-000153
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000154
为第十九码字,
Figure PCTCN2020070322-appb-000155
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000156
是与
Figure PCTCN2020070322-appb-000157
相关的
Figure PCTCN2020070322-appb-000158
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000159
表示模N加运算,所述第一集合为{0,1,…,N-1}。
这里给出了采用本申请实施例的方法,通过8个M/4长的码字构造2M长的码字的一 种示例。
结合第一方面,在第一方面的一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
如果序列{c(n)}是常数序列,那么序列{c(n)}的不同循环移位是相同的,如果将序列{c(n)}的不同循环移位分配给不同的终端设备使用,则每个终端设备使用的序列{c(n)}都相同,对于网络设备来说就无法区分哪个序列是来自于哪个终端设备的,会导致网络设备接收错误,同时无法分辨终端设备的延迟信息。因此,可以令序列{c(n)}不是常数序列,以减小终端设备之间的干扰,提高网络设备的接收成功率。
结合第一方面,在第一方面的一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
序列{s(n)}所组成的序列集合中的不同的序列可能分配给不同的终端设备使用,如果两个序列只相差一个常数,网络设备可能会无法区分这两个序列。因此为了减小终端设备之间的干扰,可以令{s(n)}所组成的序列集合中的任意两个序列{s 1(n)}和{s 2(n)}满足如上的条件,且这样做也可以提高网络设备的接收成功率。
结合第一方面,在第一方面的一种可能的实施方式中,所述方法还包括:接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
对应于不同的循环移位值的序列{c(n)}可以被分配给不同的终端设备,如果序列{c(n)}的循环移位值较小,而两个终端设备之间的延迟又相差不多,则网络设备接收的来自两个终端设备的信号就可能是完全相同的,这样网络设备就无法区分不同的终端设备的延迟信息。因此本申请实施例通过第三集合的方式,使得序列{c(n)}的循环移位值较大,从而网络设备根据序列{c(n)}就可以确定终端设备的延迟信息,使得本申请实施例的技术方案也能够适用于没有上行timing advance信息的情况。
结合第一方面,在第一方面的一种可能的实施方式中,所述至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000160
所述2 k个码字分别属于2 k个循环码的码字集合。
这里是以至少两个M长的码字中包括2 k个码字为例,且其中的第2 k个码字可以认为是至少两个M长的码字中的最后一个码字,第2 k个码字例如是网络设备在接收第一信号后首先需要解码的码字。
结合第一方面,在第一方面的一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
当终端设备发送RACH序列时,如果没有上行timing advance信息,则需要不同的终端设备使用的序列的循环移位值之差足够大,以克服时延的偏差,因此需要给不同的终端设备分配合适的循环移位值。而移位寄存器序列可以通过固定初始值、使用不同的循环移位值的方式得到不同的序列,使用这种方式生成的序列满足循环码的特征,且可以通过指 示循环移位值的方式为不同的终端设备分配不同的序列。因此在本申请实施例中,例如至少两个M长的码字中仅包括2 k个码字,也就是至少两个M长的码字的个数为2 k,那么其中的第2 k个循环码(也就是第2 k个码字)可以是移位寄存器序列。
结合第一方面,在第一方面的一种可能的实施方式中,所述方法还包括:接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
网络设备需要首先解码第2 k个码字,如果分配给两个终端设备的M长的码字中,只有第2 k个码字是不同的(其中,因为终端设备可能都需要向网络设备发送信号,因此本申请实施例提供的技术方案是适用于多个终端设备的,网络设备可以给终端设备分配不同的码字,给每个终端设备都可以分配至少两个码字,而分配给两个终端设备的码字中,只要有一个码字不同,就表明分配给终端设备的码字是不同的),如果第2 k个码字的循环移位值较小,而两个终端设备之间的延迟又相差不多,则网络设备接收的来自两个终端设备的信号就可能是完全相同的,这样网络设备就无法区分不同的终端设备的延迟信息。因此本申请实施例通过第二集合的方式,使得第2 k个码字的循环移位值较大,从而网络设备根据解码第2 k个码字,可以确定终端设备的延迟信息,使得本申请实施例的技术方案也能够适用于没有上行timing advance信息的情况。
第二方面,提供一种信号接收方法,该方法包括:
接收第一信号,所述第一信号为前导信号或参考信号,;
获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-000161
或者s(n)=j ne j2Π·c(n)/2,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000162
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000163
以及第二码字
Figure PCTCN2020070322-appb-000164
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000165
其中
Figure PCTCN2020070322-appb-000166
为M长的向量,且
Figure PCTCN2020070322-appb-000167
或,
Figure PCTCN2020070322-appb-000168
Figure PCTCN2020070322-appb-000169
或,
Figure PCTCN2020070322-appb-000170
Figure PCTCN2020070322-appb-000171
其中
Figure PCTCN2020070322-appb-000172
为M长的向量,且
Figure PCTCN2020070322-appb-000173
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000174
是与
Figure PCTCN2020070322-appb-000175
相关的M长的向量,所述第一码字包括的元素的 取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000176
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第二方面,在第二方面的一种实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000177
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000178
Figure PCTCN2020070322-appb-000179
Figure PCTCN2020070322-appb-000180
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000181
结合第二方面,在第二方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000182
属于第二十一循环码的码字集合。
结合第二方面,在第二方面的一种实施方式中,获得所述第一信号的前导序列,包括:
生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000183
Figure PCTCN2020070322-appb-000184
所述2 k个码字分别属于2 k个循环码的码字集合;
根据所述至少一个M长的码字,获得所述前导序列。
结合第二方面,在第二方面的一种实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000185
Figure PCTCN2020070322-appb-000186
其中
Figure PCTCN2020070322-appb-000187
满足:
Figure PCTCN2020070322-appb-000188
或,
Figure PCTCN2020070322-appb-000189
其中
Figure PCTCN2020070322-appb-000190
为M长的向量,且
Figure PCTCN2020070322-appb-000191
或,
Figure PCTCN2020070322-appb-000192
或,
Figure PCTCN2020070322-appb-000193
其中
Figure PCTCN2020070322-appb-000194
为M长的向量,且
Figure PCTCN2020070322-appb-000195
其中,
Figure PCTCN2020070322-appb-000196
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000197
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000198
是与
Figure PCTCN2020070322-appb-000199
相关的M长的向量,所述k大于或等于2。
结合第二方面,在第二方面的一种实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000200
满足:
Figure PCTCN2020070322-appb-000201
Figure PCTCN2020070322-appb-000202
其中
Figure PCTCN2020070322-appb-000203
Figure PCTCN2020070322-appb-000204
长的向量,且
Figure PCTCN2020070322-appb-000205
Figure PCTCN2020070322-appb-000206
Figure PCTCN2020070322-appb-000207
其中
Figure PCTCN2020070322-appb-000208
Figure PCTCN2020070322-appb-000209
长的向量,且
Figure PCTCN2020070322-appb-000210
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000211
满足
Figure PCTCN2020070322-appb-000212
Figure PCTCN2020070322-appb-000213
其中
Figure PCTCN2020070322-appb-000214
Figure PCTCN2020070322-appb-000215
长的向量,且
Figure PCTCN2020070322-appb-000216
Figure PCTCN2020070322-appb-000217
Figure PCTCN2020070322-appb-000218
其中
Figure PCTCN2020070322-appb-000219
Figure PCTCN2020070322-appb-000220
长的向量,且
Figure PCTCN2020070322-appb-000221
其中,
Figure PCTCN2020070322-appb-000222
为第九码字,
Figure PCTCN2020070322-appb-000223
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000224
是与
Figure PCTCN2020070322-appb-000225
相关的
Figure PCTCN2020070322-appb-000226
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000227
为第十一码字,
Figure PCTCN2020070322-appb-000228
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000229
是与
Figure PCTCN2020070322-appb-000230
相关的
Figure PCTCN2020070322-appb-000231
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000232
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第二方面,在第二方面的一种实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000233
满足:
Figure PCTCN2020070322-appb-000234
Figure PCTCN2020070322-appb-000235
其中
Figure PCTCN2020070322-appb-000236
Figure PCTCN2020070322-appb-000237
长的向量,且
Figure PCTCN2020070322-appb-000238
Figure PCTCN2020070322-appb-000239
其中
Figure PCTCN2020070322-appb-000240
Figure PCTCN2020070322-appb-000241
长的向量,且
Figure PCTCN2020070322-appb-000242
所述第十码字
Figure PCTCN2020070322-appb-000243
满足:
Figure PCTCN2020070322-appb-000244
Figure PCTCN2020070322-appb-000245
其中
Figure PCTCN2020070322-appb-000246
Figure PCTCN2020070322-appb-000247
长的向量,且
Figure PCTCN2020070322-appb-000248
Figure PCTCN2020070322-appb-000249
其中
Figure PCTCN2020070322-appb-000250
Figure PCTCN2020070322-appb-000251
长的向量,且
Figure PCTCN2020070322-appb-000252
所述第十一码字
Figure PCTCN2020070322-appb-000253
满足:
Figure PCTCN2020070322-appb-000254
Figure PCTCN2020070322-appb-000255
其中
Figure PCTCN2020070322-appb-000256
Figure PCTCN2020070322-appb-000257
长的向量,且
Figure PCTCN2020070322-appb-000258
Figure PCTCN2020070322-appb-000259
其中
Figure PCTCN2020070322-appb-000260
Figure PCTCN2020070322-appb-000261
长的向量,且
Figure PCTCN2020070322-appb-000262
或,
所述第十二码字
Figure PCTCN2020070322-appb-000263
满足:
Figure PCTCN2020070322-appb-000264
Figure PCTCN2020070322-appb-000265
其中
Figure PCTCN2020070322-appb-000266
Figure PCTCN2020070322-appb-000267
长的向量,且
Figure PCTCN2020070322-appb-000268
Figure PCTCN2020070322-appb-000269
其中
Figure PCTCN2020070322-appb-000270
Figure PCTCN2020070322-appb-000271
长的向量,且
Figure PCTCN2020070322-appb-000272
其中,
Figure PCTCN2020070322-appb-000273
为第十三码字,
Figure PCTCN2020070322-appb-000274
为第十四码字,所述第十三码字属于第十三循环码 的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000275
是与
Figure PCTCN2020070322-appb-000276
相关的
Figure PCTCN2020070322-appb-000277
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000278
为第十五码字,
Figure PCTCN2020070322-appb-000279
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000280
是与
Figure PCTCN2020070322-appb-000281
相关的
Figure PCTCN2020070322-appb-000282
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000283
为第十七码字,
Figure PCTCN2020070322-appb-000284
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000285
是与
Figure PCTCN2020070322-appb-000286
相关的
Figure PCTCN2020070322-appb-000287
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000288
为第十九码字,
Figure PCTCN2020070322-appb-000289
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000290
是与
Figure PCTCN2020070322-appb-000291
相关的
Figure PCTCN2020070322-appb-000292
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000293
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第二方面,在第二方面的一种实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
结合第二方面,在第二方面的一种实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
结合第二方面,在第二方面的一种实施方式中,接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
结合第二方面,在第二方面的一种实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000294
Figure PCTCN2020070322-appb-000295
其中:
Figure PCTCN2020070322-appb-000296
其中,
Figure PCTCN2020070322-appb-000297
Figure PCTCN2020070322-appb-000298
或,
Figure PCTCN2020070322-appb-000299
Figure PCTCN2020070322-appb-000300
或,
Figure PCTCN2020070322-appb-000301
其中
Figure PCTCN2020070322-appb-000302
是与
Figure PCTCN2020070322-appb-000303
相关的长度为2M的向量, 其中,
Figure PCTCN2020070322-appb-000304
Figure PCTCN2020070322-appb-000305
或,
Figure PCTCN2020070322-appb-000306
Figure PCTCN2020070322-appb-000307
Figure PCTCN2020070322-appb-000308
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000309
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000310
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000311
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000312
均为M长的向量,
Figure PCTCN2020070322-appb-000313
是与
Figure PCTCN2020070322-appb-000314
相关的M长的向量,
Figure PCTCN2020070322-appb-000315
是与
Figure PCTCN2020070322-appb-000316
相关的M长的向量,所述k大于或等于3。
结合第二方面,在第二方面的一种实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
结合第二方面,在第二方面的一种实施方式中,所述方法还包括:
发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
关于第二方面或第二方面的各种可能的实施方式所带来的技术效果,可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第三方面,提供第一种通信装置,例如该通信装置为如前所述的第一通信装置。所述通信装置用于执行上述第一方面或第一方面的任一可能的实现方式中的方法。具体地,所述通信装置可以包括用于执行第一方面或第一方面的任一可能的实现方式中的方法的模块,例如包括相互耦合的处理模块和收发模块。示例性地,所述通信装置为终端设备。其中,
处理模块,用于根据长度为2 kM的序列s生成信号的前导序列,所述信号为前导信号或参考信号,所述序列s中的元素
Figure PCTCN2020070322-appb-000317
或者
Figure PCTCN2020070322-appb-000318
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000319
表示下取整,
Figure PCTCN2020070322-appb-000320
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000321
以及第二码字
Figure PCTCN2020070322-appb-000322
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000323
其中
Figure PCTCN2020070322-appb-000324
为M长的向量,且
Figure PCTCN2020070322-appb-000325
或,
Figure PCTCN2020070322-appb-000326
Figure PCTCN2020070322-appb-000327
或,
Figure PCTCN2020070322-appb-000328
Figure PCTCN2020070322-appb-000329
其中
Figure PCTCN2020070322-appb-000330
为M长的向量,且
Figure PCTCN2020070322-appb-000331
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000332
是与
Figure PCTCN2020070322-appb-000333
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000334
表示模N加运算,所述第一集合为{0,1,…,N-1};
收发模块,用于发送所述前导序列。
结合第三方面,在第三方面的一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000335
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000336
Figure PCTCN2020070322-appb-000337
Figure PCTCN2020070322-appb-000338
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000339
结合第三方面,在第三方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000340
属于第二十一循环码的码字集合。
结合第三方面,在第三方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000341
Figure PCTCN2020070322-appb-000342
其中
Figure PCTCN2020070322-appb-000343
满足:
Figure PCTCN2020070322-appb-000344
或,
Figure PCTCN2020070322-appb-000345
其中
Figure PCTCN2020070322-appb-000346
为M长的向量,且
Figure PCTCN2020070322-appb-000347
或,
Figure PCTCN2020070322-appb-000348
或,
Figure PCTCN2020070322-appb-000349
其中
Figure PCTCN2020070322-appb-000350
为M长的向量,且
Figure PCTCN2020070322-appb-000351
其中,
Figure PCTCN2020070322-appb-000352
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000353
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000354
是与
Figure PCTCN2020070322-appb-000355
相关的M长的向量,所述k大于或等于2。
结合第三方面,在第三方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000356
Figure PCTCN2020070322-appb-000357
其中:
Figure PCTCN2020070322-appb-000358
其中,
Figure PCTCN2020070322-appb-000359
Figure PCTCN2020070322-appb-000360
或,
Figure PCTCN2020070322-appb-000361
Figure PCTCN2020070322-appb-000362
或,
Figure PCTCN2020070322-appb-000363
其中
Figure PCTCN2020070322-appb-000364
是与
Figure PCTCN2020070322-appb-000365
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-000366
Figure PCTCN2020070322-appb-000367
或,
Figure PCTCN2020070322-appb-000368
Figure PCTCN2020070322-appb-000369
Figure PCTCN2020070322-appb-000370
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000371
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000372
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000373
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000374
均为M长的向 量,
Figure PCTCN2020070322-appb-000375
是与
Figure PCTCN2020070322-appb-000376
相关的M长的向量,
Figure PCTCN2020070322-appb-000377
是与
Figure PCTCN2020070322-appb-000378
相关的M长的向量,所述k大于或等于3。
结合第三方面,在第三方面的一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000379
满足:
Figure PCTCN2020070322-appb-000380
Figure PCTCN2020070322-appb-000381
其中
Figure PCTCN2020070322-appb-000382
Figure PCTCN2020070322-appb-000383
长的向量,且
Figure PCTCN2020070322-appb-000384
Figure PCTCN2020070322-appb-000385
Figure PCTCN2020070322-appb-000386
其中
Figure PCTCN2020070322-appb-000387
Figure PCTCN2020070322-appb-000388
长的向量,且
Figure PCTCN2020070322-appb-000389
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000390
满足
Figure PCTCN2020070322-appb-000391
Figure PCTCN2020070322-appb-000392
其中
Figure PCTCN2020070322-appb-000393
Figure PCTCN2020070322-appb-000394
长的向量,且
Figure PCTCN2020070322-appb-000395
Figure PCTCN2020070322-appb-000396
Figure PCTCN2020070322-appb-000397
其中
Figure PCTCN2020070322-appb-000398
Figure PCTCN2020070322-appb-000399
长的向量,且
Figure PCTCN2020070322-appb-000400
其中,
Figure PCTCN2020070322-appb-000401
为第九码字,
Figure PCTCN2020070322-appb-000402
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000403
是与
Figure PCTCN2020070322-appb-000404
相关的
Figure PCTCN2020070322-appb-000405
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000406
为第十一码字,
Figure PCTCN2020070322-appb-000407
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000408
是与
Figure PCTCN2020070322-appb-000409
相关的
Figure PCTCN2020070322-appb-000410
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000411
表示模N加运算,所述第一集合为{0,1,…,N-1};
结合第三方面,在第三方面的一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000412
满足:
Figure PCTCN2020070322-appb-000413
Figure PCTCN2020070322-appb-000414
其中
Figure PCTCN2020070322-appb-000415
Figure PCTCN2020070322-appb-000416
长的向量,且
Figure PCTCN2020070322-appb-000417
Figure PCTCN2020070322-appb-000418
其中
Figure PCTCN2020070322-appb-000419
Figure PCTCN2020070322-appb-000420
长的向量,且
Figure PCTCN2020070322-appb-000421
所述第十码字
Figure PCTCN2020070322-appb-000422
满足:
Figure PCTCN2020070322-appb-000423
Figure PCTCN2020070322-appb-000424
其中
Figure PCTCN2020070322-appb-000425
Figure PCTCN2020070322-appb-000426
长的向量,且
Figure PCTCN2020070322-appb-000427
Figure PCTCN2020070322-appb-000428
其中
Figure PCTCN2020070322-appb-000429
Figure PCTCN2020070322-appb-000430
长的向量,且
Figure PCTCN2020070322-appb-000431
所述第十一码字
Figure PCTCN2020070322-appb-000432
满足:
Figure PCTCN2020070322-appb-000433
Figure PCTCN2020070322-appb-000434
其中
Figure PCTCN2020070322-appb-000435
Figure PCTCN2020070322-appb-000436
长的向量,且
Figure PCTCN2020070322-appb-000437
Figure PCTCN2020070322-appb-000438
其中
Figure PCTCN2020070322-appb-000439
Figure PCTCN2020070322-appb-000440
长的向量,且
Figure PCTCN2020070322-appb-000441
或,
所述第十二码字
Figure PCTCN2020070322-appb-000442
满足:
Figure PCTCN2020070322-appb-000443
Figure PCTCN2020070322-appb-000444
其中
Figure PCTCN2020070322-appb-000445
Figure PCTCN2020070322-appb-000446
长的向量,且
Figure PCTCN2020070322-appb-000447
Figure PCTCN2020070322-appb-000448
其中
Figure PCTCN2020070322-appb-000449
Figure PCTCN2020070322-appb-000450
长的向量,且
Figure PCTCN2020070322-appb-000451
其中,
Figure PCTCN2020070322-appb-000452
为第十三码字,
Figure PCTCN2020070322-appb-000453
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000454
是与
Figure PCTCN2020070322-appb-000455
相关的
Figure PCTCN2020070322-appb-000456
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000457
为第十五码字,
Figure PCTCN2020070322-appb-000458
为第十六码字,所述第十五码字属于第十 五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000459
是与
Figure PCTCN2020070322-appb-000460
相关的
Figure PCTCN2020070322-appb-000461
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000462
为第十七码字,
Figure PCTCN2020070322-appb-000463
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000464
是与
Figure PCTCN2020070322-appb-000465
相关的
Figure PCTCN2020070322-appb-000466
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000467
为第十九码字,
Figure PCTCN2020070322-appb-000468
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000469
是与
Figure PCTCN2020070322-appb-000470
相关的
Figure PCTCN2020070322-appb-000471
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000472
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第三方面,在第三方面的一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
结合第三方面,在第三方面的一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
结合第三方面,在第三方面的一种可能的实施方式中,所述收发模块还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
结合第三方面,在第三方面的一种可能的实施方式中,所述至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000473
所述2 k个码字分别属于2 k个循环码的码字集合。
结合第三方面,在第三方面的一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
结合第三方面,在第三方面的一种可能的实施方式中,所述收发模块还用于:
接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
关于第三方面或第三方面的各种可能的实施方式所带来的技术效果,可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第四方面,提供第二种通信装置,例如该通信装置为如前所述的第二通信装置。所述 通信装置用于执行上述第二方面或第二方面的任一可能的实现方式中的方法。具体地,所述通信装置可以包括用于执行第二方面或第二方面的任一可能的实现方式中的方法的模块,例如包括相互耦合的处理模块和收发模块。示例性地,所述通信装置为网络设备。其中,
收发模块,用于接收第一信号,所述第一信号为前导信号或参考信号;
处理模块,用于获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-000474
或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000475
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000476
以及第二码字
Figure PCTCN2020070322-appb-000477
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000478
其中
Figure PCTCN2020070322-appb-000479
为M长的向量,且
Figure PCTCN2020070322-appb-000480
或,
Figure PCTCN2020070322-appb-000481
Figure PCTCN2020070322-appb-000482
或,
Figure PCTCN2020070322-appb-000483
Figure PCTCN2020070322-appb-000484
其中
Figure PCTCN2020070322-appb-000485
为M长的向量,且
Figure PCTCN2020070322-appb-000486
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000487
是与
Figure PCTCN2020070322-appb-000488
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000489
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第四方面,在第四方面的一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000490
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000491
Figure PCTCN2020070322-appb-000492
Figure PCTCN2020070322-appb-000493
Figure PCTCN2020070322-appb-000494
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000495
结合第四方面,在第四方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000496
属于第二十一循环码的码字集合。
结合第四方面,在第四方面的一种可能的实施方式中,所述处理模块用于通过如下方式获得所述第一信号的前导序列:
生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000497
Figure PCTCN2020070322-appb-000498
所述2 k个码字分别属于2 k个循环码的码字集合;
根据所述至少一个M长的码字,获得所述前导序列。
结合第四方面,在第四方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000499
Figure PCTCN2020070322-appb-000500
其中
Figure PCTCN2020070322-appb-000501
满足:
Figure PCTCN2020070322-appb-000502
或,
Figure PCTCN2020070322-appb-000503
其中
Figure PCTCN2020070322-appb-000504
为M长的向量,且
Figure PCTCN2020070322-appb-000505
或,
Figure PCTCN2020070322-appb-000506
或,
Figure PCTCN2020070322-appb-000507
其中
Figure PCTCN2020070322-appb-000508
为M长的向量,且
Figure PCTCN2020070322-appb-000509
其中,
Figure PCTCN2020070322-appb-000510
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000511
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000512
是与
Figure PCTCN2020070322-appb-000513
相关的M长的向量,所述k大于或等于2。
结合第四方面,在第四方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000514
Figure PCTCN2020070322-appb-000515
其中:
Figure PCTCN2020070322-appb-000516
其中,
Figure PCTCN2020070322-appb-000517
Figure PCTCN2020070322-appb-000518
或,
Figure PCTCN2020070322-appb-000519
Figure PCTCN2020070322-appb-000520
或,
Figure PCTCN2020070322-appb-000521
其中
Figure PCTCN2020070322-appb-000522
是与
Figure PCTCN2020070322-appb-000523
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-000524
Figure PCTCN2020070322-appb-000525
或,
Figure PCTCN2020070322-appb-000526
Figure PCTCN2020070322-appb-000527
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000528
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000529
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000530
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000531
均为M长的向量,
Figure PCTCN2020070322-appb-000532
是与
Figure PCTCN2020070322-appb-000533
相关的M长的向量,
Figure PCTCN2020070322-appb-000534
是与
Figure PCTCN2020070322-appb-000535
相关的M长的向量,所述k大于或等于3。
结合第四方面,在第四方面的一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000536
满足:
Figure PCTCN2020070322-appb-000537
Figure PCTCN2020070322-appb-000538
其中
Figure PCTCN2020070322-appb-000539
Figure PCTCN2020070322-appb-000540
长的向量,且
Figure PCTCN2020070322-appb-000541
Figure PCTCN2020070322-appb-000542
Figure PCTCN2020070322-appb-000543
其中
Figure PCTCN2020070322-appb-000544
Figure PCTCN2020070322-appb-000545
长的向量,且
Figure PCTCN2020070322-appb-000546
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000547
满足
Figure PCTCN2020070322-appb-000548
Figure PCTCN2020070322-appb-000549
其中
Figure PCTCN2020070322-appb-000550
Figure PCTCN2020070322-appb-000551
长的向量,且
Figure PCTCN2020070322-appb-000552
Figure PCTCN2020070322-appb-000553
Figure PCTCN2020070322-appb-000554
其中
Figure PCTCN2020070322-appb-000555
Figure PCTCN2020070322-appb-000556
长的向 量,且
Figure PCTCN2020070322-appb-000557
其中,
Figure PCTCN2020070322-appb-000558
为第九码字,
Figure PCTCN2020070322-appb-000559
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000560
是与
Figure PCTCN2020070322-appb-000561
相关的
Figure PCTCN2020070322-appb-000562
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000563
为第十一码字,
Figure PCTCN2020070322-appb-000564
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000565
是与
Figure PCTCN2020070322-appb-000566
相关的
Figure PCTCN2020070322-appb-000567
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000568
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第四方面,在第四方面的一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000569
满足:
Figure PCTCN2020070322-appb-000570
Figure PCTCN2020070322-appb-000571
其中
Figure PCTCN2020070322-appb-000572
Figure PCTCN2020070322-appb-000573
长的向量,且
Figure PCTCN2020070322-appb-000574
Figure PCTCN2020070322-appb-000575
其中
Figure PCTCN2020070322-appb-000576
Figure PCTCN2020070322-appb-000577
长的向量,且
Figure PCTCN2020070322-appb-000578
所述第十码字
Figure PCTCN2020070322-appb-000579
满足:
Figure PCTCN2020070322-appb-000580
Figure PCTCN2020070322-appb-000581
其中
Figure PCTCN2020070322-appb-000582
Figure PCTCN2020070322-appb-000583
长的向量,且
Figure PCTCN2020070322-appb-000584
Figure PCTCN2020070322-appb-000585
其中
Figure PCTCN2020070322-appb-000586
Figure PCTCN2020070322-appb-000587
长的向量,且
Figure PCTCN2020070322-appb-000588
所述第十一码字
Figure PCTCN2020070322-appb-000589
满足:
Figure PCTCN2020070322-appb-000590
Figure PCTCN2020070322-appb-000591
其中
Figure PCTCN2020070322-appb-000592
Figure PCTCN2020070322-appb-000593
长的向量,且
Figure PCTCN2020070322-appb-000594
Figure PCTCN2020070322-appb-000595
其中
Figure PCTCN2020070322-appb-000596
Figure PCTCN2020070322-appb-000597
长的向量,且
Figure PCTCN2020070322-appb-000598
或,
所述第十二码字
Figure PCTCN2020070322-appb-000599
满足:
Figure PCTCN2020070322-appb-000600
Figure PCTCN2020070322-appb-000601
其中
Figure PCTCN2020070322-appb-000602
Figure PCTCN2020070322-appb-000603
长的向量,且
Figure PCTCN2020070322-appb-000604
Figure PCTCN2020070322-appb-000605
其中
Figure PCTCN2020070322-appb-000606
Figure PCTCN2020070322-appb-000607
长的向量,且
Figure PCTCN2020070322-appb-000608
其中,
Figure PCTCN2020070322-appb-000609
为第十三码字,
Figure PCTCN2020070322-appb-000610
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000611
是与
Figure PCTCN2020070322-appb-000612
相关的
Figure PCTCN2020070322-appb-000613
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000614
为第十五码字,
Figure PCTCN2020070322-appb-000615
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000616
是与
Figure PCTCN2020070322-appb-000617
相关的
Figure PCTCN2020070322-appb-000618
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000619
为第十七码字,
Figure PCTCN2020070322-appb-000620
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000621
是与
Figure PCTCN2020070322-appb-000622
相关的
Figure PCTCN2020070322-appb-000623
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000624
为第十九码字,
Figure PCTCN2020070322-appb-000625
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000626
是与
Figure PCTCN2020070322-appb-000627
相关的
Figure PCTCN2020070322-appb-000628
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000629
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第四方面,在第四方面的一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
结合第四方面,在第四方面的一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
结合第四方面,在第四方面的一种可能的实施方式中,所述收发模块还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
结合第四方面,在第四方面的一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
结合第四方面,在第四方面的一种可能的实施方式中,所述收发模块还用于:
发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
关于第四方面或第四方面的各种可能的实施方式所带来的技术效果,可以参考对第二方面或第二方面的各种可能的实施方式的技术效果的介绍。
第五方面,提供第三种通信装置,该通信装置例如为如前所述的第一通信装置。该通信装置包括处理器和收发器,用于实现上述第一方面或第一方面的各种可能的设计所描述的方法。示例性地,所述通信装置为设置在通信设备中的芯片。示例性的,所述通信设备为终端设备。其中,收发器例如通过通信设备中的天线、馈线和编解码器等实现,或者,如果所述通信装置为设置在通信设备中的芯片,那么收发器例如为芯片中的通信接口,该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。其中,
处理器,用于根据长度为2 kM的序列s生成信号的前导序列,所述信号为前导信号或参考信号,所述序列s中的元素
Figure PCTCN2020070322-appb-000630
或者
Figure PCTCN2020070322-appb-000631
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000632
表示下取整,
Figure PCTCN2020070322-appb-000633
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000634
以及第二码字
Figure PCTCN2020070322-appb-000635
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000636
其中
Figure PCTCN2020070322-appb-000637
为M长的向量,且
Figure PCTCN2020070322-appb-000638
或,
Figure PCTCN2020070322-appb-000639
Figure PCTCN2020070322-appb-000640
或,
Figure PCTCN2020070322-appb-000641
Figure PCTCN2020070322-appb-000642
其中
Figure PCTCN2020070322-appb-000643
为M长的向量,且
Figure PCTCN2020070322-appb-000644
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000645
是与
Figure PCTCN2020070322-appb-000646
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的 整数,
Figure PCTCN2020070322-appb-000647
表示模N加运算,所述第一集合为{0,1,…,N-1};
收发器,用于发送所述前导序列。
结合第五方面,在第五方面的一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000648
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000649
Figure PCTCN2020070322-appb-000650
Figure PCTCN2020070322-appb-000651
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000652
结合第五方面,在第五方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000653
属于第二十一循环码的码字集合。
结合第五方面,在第五方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000654
Figure PCTCN2020070322-appb-000655
其中
Figure PCTCN2020070322-appb-000656
满足:
Figure PCTCN2020070322-appb-000657
或,
Figure PCTCN2020070322-appb-000658
其中
Figure PCTCN2020070322-appb-000659
为M长的向量,且
Figure PCTCN2020070322-appb-000660
或,
Figure PCTCN2020070322-appb-000661
或,
Figure PCTCN2020070322-appb-000662
其中
Figure PCTCN2020070322-appb-000663
为M长的向量,且
Figure PCTCN2020070322-appb-000664
其中,
Figure PCTCN2020070322-appb-000665
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000666
为所述至少两个M长的码 字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000667
是与
Figure PCTCN2020070322-appb-000668
相关的M长的向量,所述k大于或等于2。
结合第五方面,在第五方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000669
Figure PCTCN2020070322-appb-000670
其中:
Figure PCTCN2020070322-appb-000671
其中,
Figure PCTCN2020070322-appb-000672
Figure PCTCN2020070322-appb-000673
或,
Figure PCTCN2020070322-appb-000674
Figure PCTCN2020070322-appb-000675
或,
Figure PCTCN2020070322-appb-000676
其中
Figure PCTCN2020070322-appb-000677
是与
Figure PCTCN2020070322-appb-000678
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-000679
Figure PCTCN2020070322-appb-000680
或,
Figure PCTCN2020070322-appb-000681
Figure PCTCN2020070322-appb-000682
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000683
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000684
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000685
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000686
均为M长的向量,
Figure PCTCN2020070322-appb-000687
是与
Figure PCTCN2020070322-appb-000688
相关的M长的向量,
Figure PCTCN2020070322-appb-000689
是与
Figure PCTCN2020070322-appb-000690
相关的M长的向量,所述k大于或等于3。
结合第五方面,在第五方面的一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000691
满足:
Figure PCTCN2020070322-appb-000692
Figure PCTCN2020070322-appb-000693
其中
Figure PCTCN2020070322-appb-000694
Figure PCTCN2020070322-appb-000695
长的向量,且
Figure PCTCN2020070322-appb-000696
Figure PCTCN2020070322-appb-000697
Figure PCTCN2020070322-appb-000698
其中
Figure PCTCN2020070322-appb-000699
Figure PCTCN2020070322-appb-000700
长的向 量,且
Figure PCTCN2020070322-appb-000701
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000702
满足
Figure PCTCN2020070322-appb-000703
Figure PCTCN2020070322-appb-000704
其中
Figure PCTCN2020070322-appb-000705
Figure PCTCN2020070322-appb-000706
长的向量,且
Figure PCTCN2020070322-appb-000707
Figure PCTCN2020070322-appb-000708
Figure PCTCN2020070322-appb-000709
其中
Figure PCTCN2020070322-appb-000710
Figure PCTCN2020070322-appb-000711
长的向量,且
Figure PCTCN2020070322-appb-000712
其中,
Figure PCTCN2020070322-appb-000713
为第九码字,
Figure PCTCN2020070322-appb-000714
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000715
是与
Figure PCTCN2020070322-appb-000716
相关的
Figure PCTCN2020070322-appb-000717
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000718
为第十一码字,
Figure PCTCN2020070322-appb-000719
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000720
是与
Figure PCTCN2020070322-appb-000721
相关的
Figure PCTCN2020070322-appb-000722
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000723
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第五方面,在第五方面的一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000724
满足:
Figure PCTCN2020070322-appb-000725
Figure PCTCN2020070322-appb-000726
其中
Figure PCTCN2020070322-appb-000727
Figure PCTCN2020070322-appb-000728
长的向量,且
Figure PCTCN2020070322-appb-000729
Figure PCTCN2020070322-appb-000730
其中
Figure PCTCN2020070322-appb-000731
Figure PCTCN2020070322-appb-000732
长的向量,且
Figure PCTCN2020070322-appb-000733
所述第十码字
Figure PCTCN2020070322-appb-000734
满足:
Figure PCTCN2020070322-appb-000735
Figure PCTCN2020070322-appb-000736
其中
Figure PCTCN2020070322-appb-000737
Figure PCTCN2020070322-appb-000738
长的向量,且
Figure PCTCN2020070322-appb-000739
Figure PCTCN2020070322-appb-000740
其中
Figure PCTCN2020070322-appb-000741
Figure PCTCN2020070322-appb-000742
长的向量,且
Figure PCTCN2020070322-appb-000743
所述第十一码字
Figure PCTCN2020070322-appb-000744
满足:
Figure PCTCN2020070322-appb-000745
Figure PCTCN2020070322-appb-000746
其中
Figure PCTCN2020070322-appb-000747
Figure PCTCN2020070322-appb-000748
长的向量,且
Figure PCTCN2020070322-appb-000749
Figure PCTCN2020070322-appb-000750
其中
Figure PCTCN2020070322-appb-000751
Figure PCTCN2020070322-appb-000752
长的向量,且
Figure PCTCN2020070322-appb-000753
或,
所述第十二码字
Figure PCTCN2020070322-appb-000754
满足:
Figure PCTCN2020070322-appb-000755
Figure PCTCN2020070322-appb-000756
其中
Figure PCTCN2020070322-appb-000757
Figure PCTCN2020070322-appb-000758
长的向量,且
Figure PCTCN2020070322-appb-000759
Figure PCTCN2020070322-appb-000760
其中
Figure PCTCN2020070322-appb-000761
Figure PCTCN2020070322-appb-000762
长的向量,且
Figure PCTCN2020070322-appb-000763
其中,
Figure PCTCN2020070322-appb-000764
为第十三码字,
Figure PCTCN2020070322-appb-000765
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000766
是与
Figure PCTCN2020070322-appb-000767
相关的
Figure PCTCN2020070322-appb-000768
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000769
为第十五码字,
Figure PCTCN2020070322-appb-000770
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000771
是与
Figure PCTCN2020070322-appb-000772
相关的
Figure PCTCN2020070322-appb-000773
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000774
为第十七码字,
Figure PCTCN2020070322-appb-000775
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000776
是与
Figure PCTCN2020070322-appb-000777
相关的
Figure PCTCN2020070322-appb-000778
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000779
为第十九码字,
Figure PCTCN2020070322-appb-000780
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000781
是与
Figure PCTCN2020070322-appb-000782
相关的
Figure PCTCN2020070322-appb-000783
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述 第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000784
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第五方面,在第五方面的一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
结合第五方面,在第五方面的一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
结合第五方面,在第五方面的一种可能的实施方式中,所述收发器还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
结合第五方面,在第五方面的一种可能的实施方式中,所述至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000785
所述2 k个码字分别属于2 k个循环码的码字集合。
结合第五方面,在第五方面的一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
结合第五方面,在第五方面的一种可能的实施方式中,所述收发器还用于:
接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
关于第五方面或第五方面的各种可能的实施方式所带来的技术效果,可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第六方面,提供第四种通信装置,该通信装置例如为如前所述的第二通信装置。该通信装置包括处理器和收发器,用于实现上述第二方面或第二方面的各种可能的设计所描述的方法。示例性地,所述通信装置为设置在通信设备中的芯片。示例性的,所述通信设备为网络设备。其中,收发器例如通过通信设备中的天线、馈线和编解码器等实现,或者,如果所述通信装置为设置在通信设备中的芯片,那么收发器例如为芯片中的通信接口,该通信接口与通信设备中的射频收发组件连接,以通过射频收发组件实现信息的收发。其中,
收发器,用于接收第一信号,所述第一信号为前导信号或参考信号;
处理器,用于获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-000786
或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000787
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000788
以及第二码字
Figure PCTCN2020070322-appb-000789
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000790
其中
Figure PCTCN2020070322-appb-000791
为M长的向量,且
Figure PCTCN2020070322-appb-000792
或,
Figure PCTCN2020070322-appb-000793
Figure PCTCN2020070322-appb-000794
或,
Figure PCTCN2020070322-appb-000795
Figure PCTCN2020070322-appb-000796
其中
Figure PCTCN2020070322-appb-000797
为M长的向量,且
Figure PCTCN2020070322-appb-000798
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000799
是与
Figure PCTCN2020070322-appb-000800
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000801
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第六方面,在第六方面的一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-000802
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-000803
Figure PCTCN2020070322-appb-000804
Figure PCTCN2020070322-appb-000805
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000806
结合第六方面,在第六方面的一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-000807
属于第二十一循环码的码字集合。
结合第六方面,在第六方面的一种可能的实施方式中,所述处理模块用于通过如下方 式获得所述第一信号的前导序列:
生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-000808
Figure PCTCN2020070322-appb-000809
所述2 k个码字分别属于2 k个循环码的码字集合;
根据所述至少一个M长的码字,获得所述前导序列。
结合第六方面,在第六方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000810
Figure PCTCN2020070322-appb-000811
其中
Figure PCTCN2020070322-appb-000812
满足:
Figure PCTCN2020070322-appb-000813
或,
Figure PCTCN2020070322-appb-000814
其中
Figure PCTCN2020070322-appb-000815
为M长的向量,且
Figure PCTCN2020070322-appb-000816
或,
Figure PCTCN2020070322-appb-000817
或,
Figure PCTCN2020070322-appb-000818
其中
Figure PCTCN2020070322-appb-000819
为M长的向量,且
Figure PCTCN2020070322-appb-000820
其中,
Figure PCTCN2020070322-appb-000821
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-000822
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-000823
是与
Figure PCTCN2020070322-appb-000824
相关的M长的向量,所述k大于或等于2。
结合第六方面,在第六方面的一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-000825
Figure PCTCN2020070322-appb-000826
其中:
Figure PCTCN2020070322-appb-000827
其中,
Figure PCTCN2020070322-appb-000828
Figure PCTCN2020070322-appb-000829
或,
Figure PCTCN2020070322-appb-000830
Figure PCTCN2020070322-appb-000831
或,
Figure PCTCN2020070322-appb-000832
其中
Figure PCTCN2020070322-appb-000833
是与
Figure PCTCN2020070322-appb-000834
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-000835
Figure PCTCN2020070322-appb-000836
或,
Figure PCTCN2020070322-appb-000837
Figure PCTCN2020070322-appb-000838
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-000839
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-000840
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-000841
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-000842
均为M长的向量,
Figure PCTCN2020070322-appb-000843
是与
Figure PCTCN2020070322-appb-000844
相关的M长的向量,
Figure PCTCN2020070322-appb-000845
是与
Figure PCTCN2020070322-appb-000846
相关的M长的向量,所述k大于或等于3。
结合第六方面,在第六方面的一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-000847
满足:
Figure PCTCN2020070322-appb-000848
Figure PCTCN2020070322-appb-000849
其中
Figure PCTCN2020070322-appb-000850
Figure PCTCN2020070322-appb-000851
长的向量,且
Figure PCTCN2020070322-appb-000852
Figure PCTCN2020070322-appb-000853
Figure PCTCN2020070322-appb-000854
其中
Figure PCTCN2020070322-appb-000855
Figure PCTCN2020070322-appb-000856
长的向量,且
Figure PCTCN2020070322-appb-000857
和\或,
所述第二码字
Figure PCTCN2020070322-appb-000858
满足
Figure PCTCN2020070322-appb-000859
Figure PCTCN2020070322-appb-000860
其中
Figure PCTCN2020070322-appb-000861
Figure PCTCN2020070322-appb-000862
长的向量,且
Figure PCTCN2020070322-appb-000863
Figure PCTCN2020070322-appb-000864
Figure PCTCN2020070322-appb-000865
其中
Figure PCTCN2020070322-appb-000866
Figure PCTCN2020070322-appb-000867
长的向量,且
Figure PCTCN2020070322-appb-000868
其中,
Figure PCTCN2020070322-appb-000869
为第九码字,
Figure PCTCN2020070322-appb-000870
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-000871
是与
Figure PCTCN2020070322-appb-000872
相关的
Figure PCTCN2020070322-appb-000873
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-000874
为第十一码字,
Figure PCTCN2020070322-appb-000875
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-000876
是与
Figure PCTCN2020070322-appb-000877
相关的
Figure PCTCN2020070322-appb-000878
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-000879
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第六方面,在第六方面的一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-000880
满足:
Figure PCTCN2020070322-appb-000881
Figure PCTCN2020070322-appb-000882
其中
Figure PCTCN2020070322-appb-000883
Figure PCTCN2020070322-appb-000884
长的向量,且
Figure PCTCN2020070322-appb-000885
Figure PCTCN2020070322-appb-000886
其中
Figure PCTCN2020070322-appb-000887
Figure PCTCN2020070322-appb-000888
长的向量,且
Figure PCTCN2020070322-appb-000889
所述第十码字
Figure PCTCN2020070322-appb-000890
满足:
Figure PCTCN2020070322-appb-000891
Figure PCTCN2020070322-appb-000892
其中
Figure PCTCN2020070322-appb-000893
Figure PCTCN2020070322-appb-000894
长的向量,且
Figure PCTCN2020070322-appb-000895
Figure PCTCN2020070322-appb-000896
其中
Figure PCTCN2020070322-appb-000897
Figure PCTCN2020070322-appb-000898
长的向量,且
Figure PCTCN2020070322-appb-000899
所述第十一码字
Figure PCTCN2020070322-appb-000900
满足:
Figure PCTCN2020070322-appb-000901
Figure PCTCN2020070322-appb-000902
其中
Figure PCTCN2020070322-appb-000903
Figure PCTCN2020070322-appb-000904
长的向量,且
Figure PCTCN2020070322-appb-000905
Figure PCTCN2020070322-appb-000906
其中
Figure PCTCN2020070322-appb-000907
Figure PCTCN2020070322-appb-000908
长的向量,且
Figure PCTCN2020070322-appb-000909
或,
所述第十二码字
Figure PCTCN2020070322-appb-000910
满足:
Figure PCTCN2020070322-appb-000911
Figure PCTCN2020070322-appb-000912
其中
Figure PCTCN2020070322-appb-000913
Figure PCTCN2020070322-appb-000914
长的向量,且
Figure PCTCN2020070322-appb-000915
Figure PCTCN2020070322-appb-000916
其中
Figure PCTCN2020070322-appb-000917
Figure PCTCN2020070322-appb-000918
长的向量,且
Figure PCTCN2020070322-appb-000919
其中,
Figure PCTCN2020070322-appb-000920
为第十三码字,
Figure PCTCN2020070322-appb-000921
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-000922
是与
Figure PCTCN2020070322-appb-000923
相关的
Figure PCTCN2020070322-appb-000924
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000925
为第十五码字,
Figure PCTCN2020070322-appb-000926
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-000927
是与
Figure PCTCN2020070322-appb-000928
相关的
Figure PCTCN2020070322-appb-000929
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000930
为第十七码字,
Figure PCTCN2020070322-appb-000931
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-000932
是与
Figure PCTCN2020070322-appb-000933
相关的
Figure PCTCN2020070322-appb-000934
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-000935
为第十九码字,
Figure PCTCN2020070322-appb-000936
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-000937
是与
Figure PCTCN2020070322-appb-000938
相关的
Figure PCTCN2020070322-appb-000939
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-000940
表示模N加运算,所述第一集合为{0,1,…,N-1}。
结合第六方面,在第六方面的一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
结合第六方面,在第六方面的一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
结合第六方面,在第六方面的一种可能的实施方式中,所述收发器还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
结合第六方面,在第六方面的一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
结合第六方面,在第六方面的一种可能的实施方式中,所述收发器还用于:
发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
关于第六方面或第六方面的各种可能的实施方式所带来的技术效果,可以参考对第二 方面或第二方面的各种可能的实施方式的技术效果的介绍。
第七方面,提供第五种通信装置。该通信装置可以为上述方法设计中的第一通信装置。示例性地,所述通信装置为设置在终端设备中的芯片。该通信装置包括:存储器,用于存储计算机可执行程序代码;以及处理器,处理器与存储器耦合。其中存储器所存储的程序代码包括指令,当处理器执行所述指令时,使第五种通信装置执行上述第一方面或第一方面的任意一种可能的实施方式中的方法。
其中,第五种通信装置还可以包括通信接口,该通信接口可以是终端设备中的收发器,例如通过所述通信装置中的天线、馈线和编解码器等实现,或者,如果第五种通信装置为设置在终端设备中的芯片,则通信接口可以是该芯片的输入/输出接口,例如输入/输出管脚等。
第八方面,提供第六种通信装置。该通信装置可以为上述方法设计中的第二通信装置。示例性地,所述通信装置为设置在网络设备中的芯片。该通信装置包括:存储器,用于存储计算机可执行程序代码;以及处理器,处理器与存储器耦合。其中存储器所存储的程序代码包括指令,当处理器执行所述指令时,使第六种通信装置执行上述第二方面或第二方面的任意一种可能的实施方式中的方法。
其中,第六种通信装置还可以包括通信接口,该通信接口可以是网络设备中的收发器,例如通过所述通信装置中的天线、馈线和编解码器等实现,或者,如果第六种通信装置为设置在网络设备中的芯片,则通信接口可以是该芯片的输入/输出接口,例如输入/输出管脚等。
第九方面,提供一种通信系统,该通信系统可以包括第三方面所述的第一种通信装置、第五方面所述的第三种通信装置或第七方面所述的第五种通信装置,以及包括第四方面所述的第二种通信装置、第六方面所述的第四种通信装置或第八方面所述的第六种通信装置。
第十方面,提供一种计算机存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述第一方面或第一方面的任意一种可能的设计中所述的方法。
第十一方面,提供一种计算机存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述第二方面或第二方面的任意一种可能的设计中所述的方法。
第十二方面,提供一种包含指令的计算机程序产品,所述计算机程序产品中存储有指令,当其在计算机上运行时,使得计算机执行上述第一方面或第一方面的任意一种可能的设计中所述的方法。
第十三方面,提供一种包含指令的计算机程序产品,所述计算机程序产品中存储有指令,当其在计算机上运行时,使得计算机执行上述第二方面或第二方面的任意一种可能的设计中所述的方法。
在本申请实施例中,因为至少两个M长的码字有足够多的变换方式,因此可以得到较多的序列{c(n)},从而满足对于序列的数量的需求。而且,至少两个M长的码字中的每个码字可以单独循环,通过构造可以保证序列{c(n)}整体循环,对于接收端来说,也可以减小接收的复杂度。
附图说明
图1为本申请实施例的一种应用场景示意图;
图2为本申请实施例提供的一种信号发送、接收方法的流程图;
图3为按照本申请实施例提供的方法构造4M长的码字的一种示意图;
图4A为按照本申请实施例提供的方法构造4M长的码字的另一种示意图;
图4B为按照本申请实施例提供的方法构造2M长的码字的一种示意图;
图4C为按照本申请实施例提供的方法构造2M长的码字的另一种示意图;
图5为本申请实施例中接收端的处理过程示意图;
图6为本申请实施例提供的能够实现终端设备的功能的通信装置的一种示意图;
图7为本申请实施例提供的能够实现网络设备的功能的通信装置的一种示意图;
图8A~图8B为本申请实施例提供的一种通信装置的两种示意图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚,下面将结合附图对本申请实施例作进一步地详细描述。
以下,对本申请实施例中的部分用语进行解释说明,以便于本领域技术人员理解。
1)终端设备,包括向用户提供语音和/或数据连通性的设备,例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network,RAN)与核心网进行通信,与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment,UE)、无线终端设备、移动终端设备、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point,AP)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如,可以包括移动电话(或称为“蜂窝”电话),具有移动终端设备的计算机,便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,智能穿戴式设备等。例如,个人通信业务(personal communication service,PCS)电话、无绳电话、会话发起协议(session initiation protocol,SIP)话机、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、等设备。还包括受限设备,例如功耗较低的设备,或存储能力有限的设备,或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification,RFID)、传感器、全球定位系统(global positioning system,GPS)、激光扫描器等信息传感设备。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能头盔、智能首饰等。
2)网络设备,例如包括接入网(access network,AN)设备。接入网设备例如基站(例如,接入点),可以是指接入网中在空中接口上通过一个或多个小区与无线终端设备通信的设备。网络设备可用于将收到的空中帧与网际协议(IP)分组进行相互转换,作为终端设备与接入网的其余部分之间的路由器,其中接入网的其余部分可包括IP网络。网络设备还可协调对空中接口的属性管理。例如,网络设备可以包括长期演进(long term evolution,LTE)系统或演进的LTE系统(LTE-Advanced,LTE-A)中的演进型基站(NodeB或eNB或e-NodeB,evolutional Node B),或者也可以包括5G NR系统中的下一代节点B(next generation node B,gNB),或者也可以包括云接入网(cloud radio access network,CloudRAN)系统中的集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU),本申请实施例并不限定。
3)前导信号(preamble),是通信系统中用于终端设备和网络设备之间进行时间同步的信号。
4)参考信号(reference signal,RS),是通信系统中用于信道估计或信道探测的信号。
5)本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个、三个或更多个,鉴于此,本申请实施例中也可以将“多个”理解为“至少两个”。“至少一个”,可理解为一个或多个,例如理解为一个、两个、三个或更多个。例如,包括至少一个,是指包括一个、两个或更多个,而且不限制包括的是哪几个,例如,包括A、B和C中的至少一个,那么包括的可以是A,B,C,A和B,A和C,B和C,或A和B和C。“至少两个”,可理解为两个、三个或更多个。同理,对于“至少一种”等描述的理解,也是类似的。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,或单独存在B这三种情况。另外,字符“/”,如无特殊说明,一般表示前后关联对象是一种“或”的关系。
以及,除非有相反的说明,本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分,不用于限定多个对象的顺序、时序、优先级或者重要程度。例如,第一码字和第二码字,只是为了区分不同的码字,并不是表示这两种码字的优先级或者重要程度等的不同。
本申请实施例提供的技术方案可以应用于5G NR系统,或者可以应用于LTE系统,或者可以应用于下一代移动通信系统或其他类似的通信系统,具体的不做限制。
请参考图1,为本申请实施例的一种应用场景。图1中包括网络设备和终端设备,终端设备与一个网络设备连接。当然图1中的终端设备的数量只是举例,在实际应用中,网络设备可以为多个终端设备提供服务,多个终端设备中的全部终端设备或者部分终端设备都可以采用本申请实施例提供的方法向网络设备发送信号。
图1中的网络设备例如为基站。其中,网络设备在不同的系统对应不同的设备,例如在第四代移动通信技术(the 4 th generation,4G)系统中可以对应eNB,在5G系统中对应5G中的网络设备,例如gNB。
下面结合附图介绍本申请实施例提供的技术方案。
本申请实施例提供第一种信号发送、接收方法,请参见图2,为该方法的流程图。在下文的介绍过程中,以该方法应用于图1所示的网络架构为例。另外,该方法可由两个通信装置执行,这两个通信装置例如为第一通信装置和第二通信装置,其中,第一通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置,或者第一通信装 置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片系统。对于第二通信装置也是同样,第二通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置,或者第二通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置,当然还可以是其他通信装置,例如芯片系统。且对于第一通信装置和第二通信装置的实现方式均不做限制,例如第一通信装置可以是网络设备,第二通信装置是终端设备,或者第一通信装置和第二通信装置都是网络设备,或者第一通信装置和第二通信装置都是终端设备,或者第一通信装置是网络设备,第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置,等等。其中,网络设备例如为基站。
为了便于介绍,在下文中,以该方法由网络设备和终端设备执行为例,也就是,以第一通信装置是网络设备、第二通信装置是终端设备为例。如果将本实施例应用在图1所示的网络架构,因此,下文中所述的网络设备可以是图1所示的网络架构中的网络设备,下文中所述的终端设备可以是图1所示的网络架构中的终端设备。
S21、终端设备根据长度为2 kM的序列s生成信号的前导序列,所述序列s中的元素
Figure PCTCN2020070322-appb-000941
或者
Figure PCTCN2020070322-appb-000942
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-000943
表示下取整,所述序列{c(n)}是通过至少两个M长的码字得到的,
Figure PCTCN2020070322-appb-000944
所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000945
以及第二码字
Figure PCTCN2020070322-appb-000946
所述信号例如称为第一信号;
S22、终端设备发送所述前导序列,网络设备接收所述前导序列,或者可以认为,终端设备是发送所述第一信号,网络设备也是接收来自终端设备的所述第一信号,图2就是以第一信号为例,所述第一信号为前导信号或参考信号;
S23、网络设备获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-000947
或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-000948
以及第二码字
Figure PCTCN2020070322-appb-000949
在本申请实施例中,第一信号例如为前导信号,或者为参考信号等,具体的不做限制。
其中,序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-000950
其中
Figure PCTCN2020070322-appb-000951
为M长的向量,且
Figure PCTCN2020070322-appb-000952
或,
Figure PCTCN2020070322-appb-000953
Figure PCTCN2020070322-appb-000954
或,
Figure PCTCN2020070322-appb-000955
Figure PCTCN2020070322-appb-000956
其中
Figure PCTCN2020070322-appb-000957
为M长的向量,且
Figure PCTCN2020070322-appb-000958
其中,第一码字属于第一循环码的码字集合,第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-000959
是与
Figure PCTCN2020070322-appb-000960
相关的M长的向量,第一码字包括的元素的取值属于第一集合,第二码字包括的元素的取值也属于第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-000961
表示模N加运算,第一集合为{0,1,…,N-1}。另外对于
Figure PCTCN2020070322-appb-000962
来说,其上标b表示
Figure PCTCN2020070322-appb-000963
是长度为2 bM的向量,例如
Figure PCTCN2020070322-appb-000964
表示
Figure PCTCN2020070322-appb-000965
是长度为M的向量,
Figure PCTCN2020070322-appb-000966
的下标a表示不同的序列,也就是说,下标a用于区分不同的序列,例如
Figure PCTCN2020070322-appb-000967
Figure PCTCN2020070322-appb-000968
就表示两个不同的序列。
Figure PCTCN2020070322-appb-000969
可以属于第二十一循环码的码字集合。令
Figure PCTCN2020070322-appb-000970
也是循环码,可以保证序列{c(n)}是整体循环的。
简单来讲,就是可以通过M长的码字构造更长的码字,例如可以通过两个M长的码字构造得到2M长的码字,例如第一码字
Figure PCTCN2020070322-appb-000971
和第二码字
Figure PCTCN2020070322-appb-000972
就是两个M长的码字,通过这两个M长的码字可以构造得到2M长的码字,该码字例如为(c(0),c(1),…,c(M-1)),(c(M),c(M+1),…,c(2M-1))。如果构造了两个2M长的码字,那么通过这两个2M长的码字就可以构造得到4M长的码字,如果构造了两个4M长的码字,那么通过这两个4M长的码字就可以构造得到8M长的码字,如果构造了两个8M长的码字,那么通过这两个8M长的码字就可以构造得到16M长的码字,以此类推。
关于终端设备确定序列{c(n)}或序列s,可以有不同的方法。例如,网络设备可以给用户分配专用的序列,该专用的序列就是序列{c(n)}或序列s。或者,网络设备可以给终端设备配置序列集合,该序列集合可供多个终端设备共享,例如可供一个小区的终端设备共享。对于一个终端设备来说,可以从该序列集合中选取一个序列作为序列{c(n)}或序列s,例如终端设备可以随机选择。或者,网络设备可以给终端设备配置专用序列集合,该专用序列集合只供该终端设备使用。该专用序列集合中的不同的序列可以对应不同的信息,则终端设备可以根据待发送的信息,从该专用序列集合中选择一个序列作为序列{c(n)}或序列s,即终端设备通过序列选择的方式发送信息。例如网络设备给一个终端设备配置的专用序列集合中包含4个序列,这4个序列对应2比特的信息,终端设备可以根据待传输的2比特的信息,从这4个序列中选择相应的序列。例如终端设备待传输的2比特的信息为“11”,则终端设备可以从这4个序列中选择对应于取值“11”的序列作为序列{c(n)}或序列s。
其中,
Figure PCTCN2020070322-appb-000973
例如,如果M为奇数,则
Figure PCTCN2020070322-appb-000974
Figure PCTCN2020070322-appb-000975
也就是说,对于
Figure PCTCN2020070322-appb-000976
如果x为奇数,则
Figure PCTCN2020070322-appb-000977
而如果x为偶数,则
Figure PCTCN2020070322-appb-000978
而对于
Figure PCTCN2020070322-appb-000979
如果y为奇数,则
Figure PCTCN2020070322-appb-000980
而如果x为偶数,则
Figure PCTCN2020070322-appb-000981
或者,如果M为奇数,
Figure PCTCN2020070322-appb-000982
Figure PCTCN2020070322-appb-000983
也就是说,对于
Figure PCTCN2020070322-appb-000984
如果x为偶数,则
Figure PCTCN2020070322-appb-000985
而如果x为奇数,则
Figure PCTCN2020070322-appb-000986
而对于
Figure PCTCN2020070322-appb-000987
如果y为偶数,则
Figure PCTCN2020070322-appb-000988
而如果x为奇数,则
Figure PCTCN2020070322-appb-000989
例如,如果M为偶数,则
Figure PCTCN2020070322-appb-000990
Figure PCTCN2020070322-appb-000991
Figure PCTCN2020070322-appb-000992
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-000993
M的取值可以通过协议规定,或者也可以由网络设备确定并事先通知终端设备。N的取值可以通过协议规定,或者也可以由网络设备确定并事先通知终端设备。k的取值可以通过协议规定,或者也可以由网络设备确定并事先通知终端设备。而至少两个M长的码字,可以是网络设备事先配置给终端设备的,或者可以是通过协议规定的。
循环码的码字集合可定义为一组码字,这一组码字中的任意一个码字的循环移位仍然属于这一组码字。另外,关于
Figure PCTCN2020070322-appb-000994
(或者说模N加运算)可定义为,
Figure PCTCN2020070322-appb-000995
“+”为通常的算术加法(arithmetic addition),mod表示取模运算。
序列s可以是对序列{c(n)}进行调制后得到的,调制方式例如为二进制相移键控(binary phase shift keying,BPSK),或者为
Figure PCTCN2020070322-appb-000996
调制,或者为四进制相移键控(quadrature phase shift keying,QPSK)调制,或者为高阶调制。例如对于N阶调制来说,序列{c(n)}中的元素c(n)可以映射为N阶调制符号s(n),
Figure PCTCN2020070322-appb-000997
或者对于
Figure PCTCN2020070322-appb-000998
调制来说,序列{c(n)}中的元素c(n)可以映射为N阶调制符号s(n),
Figure PCTCN2020070322-appb-000999
而s(n)就是序列s中的元素。
Figure PCTCN2020070322-appb-001000
是虚数的单位。
终端设备可以将序列s映射到传输资源上发送,终端设备在映射序列s时,可以正向映射,例如序列s中的元素s(n)先映射,序列s中的元素s(n+1)后映射,或者,终端设备在映射序列s时,也可以逆向映射,例如序列s中的元素s(n+1)先映射,序列s中的元素s(n)后映射。
其中,
Figure PCTCN2020070322-appb-001001
是与
Figure PCTCN2020070322-appb-001002
相关的M长的向量。在码字
Figure PCTCN2020070322-appb-001003
确定后,有唯一的码字
Figure PCTCN2020070322-appb-001004
与之对 应,可以理解为,码字
Figure PCTCN2020070322-appb-001005
Figure PCTCN2020070322-appb-001006
之间存在映射关系。
Figure PCTCN2020070322-appb-001007
的生成方式可以为,确定码字
Figure PCTCN2020070322-appb-001008
根据
Figure PCTCN2020070322-appb-001009
Figure PCTCN2020070322-appb-001010
的映射关系生成
Figure PCTCN2020070322-appb-001011
该映射方式可以通过查表或者生成矩阵的方式实现,也可以通过其他方式实现,具体的不做限制。
在本申请实施例中,可以通过至少两个M长的码字得到序列{c(n)},那么,用于生成序列{c(n)}的码字的数量不同,得到的序列{c(n)}就不同,或者,至少两个M长的码字中只要有一个码字不同,得到的序列{c(n)}就不同,而且至少两个M长的码字中的第一码字属于第一循环码的码字集合,至少两个M长的码字中的第二码字属于第二循环码的码字集合,也就是说,至少两个M长的码字中的每个M长的码字是分别循环的,那么对于其中的任何一个码字来说,只要进行时域循环移位,就会得到另一个不同的码字,可见,因为至少两个M长的码字有足够多的变换方式,而且序列{c(n)}的长度在理论上来说也可以无限长,因此可以得到较多的序列{c(n)},从而满足对于序列的数量的需求。而且,至少两个M长的码字中的每个码字可以单独循环,通过构造后保证序列{c(n)}整体循环,对于接收端来说,也可以减小接收的复杂度。
其中,第一循环码和第二循环码可以是同一个循环码的不同的子码,例如,第一循环码和第二循环码都是从同一个循环码中截取得到的,或者,第一循环码和第二循环码也可以是不同的循环码的子码。例如,第一循环码和第二循环码都是截短的循环的一阶Reed-Muller code中的长度为M的码字,只是第一循环码和第二循环码不同,或者第一循环码和第二循环码都是截短的循环的高阶Reed-Muller code中的长度为M的码字,只是第一循环码和第二循环码不同,或者第一循环码是截短的循环的一阶Reed-Muller code中的长度为M的码字,第二循环码是截短的循环的高阶Reed-Muller code中的长度为M的码字,等等。推广到至少两个M长的码字也是如此,至少两个M长的码字可以都是同一个循环码的子码,或者,至少两个M长的码字是至少两个循环码的子码,其中不同的码字是不同的循环码的子码,或者,至少两个M长的码字是D个循环码的子码,D为小于或等于M的正整数,也就是,至少两个M长的码字中,可能有多个码字是同一个循环码的不同的子码,也可能有单独的一个码字是一个循环码的子码,等等。本申请实施例对于至少两个M长的码字的选取方式不做限制,只要至少两个M长的码字中的每个码字都是循环的码字即可。
在本申请实施例中,序列{c(n)}不是常数序列。常数序列是指,序列的每个元素都相同。如果序列{c(n)}是常数序列,那么序列{c(n)}的不同循环移位是相同的,如果将序列{c(n)}的不同循环移位分配给不同的终端设备使用,则每个终端设备使用的序列{c(n)}都相同,对于网络设备来说就无法区分哪个序列是来自于哪个终端设备的,会导致网络设备接收错误,同时无法分辨终端设备的延迟信息。因此,可以令序列{c(n)}不是常数序列,以减小终端设备之间的干扰,提高网络设备的接收成功率。
另外,序列{s(n)}所组成的序列集合中的任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。也就是说,不存在能够使得s 1(n)=γs 2(n)的复数γ。序列{s(n)}所组成的序列集合中的不同的序列可能分配给不同的终端设备使用,如果两个序列只相差一个常数,网络设备可能会无法区分这两个序列。因此为了减小终端设备之间的干扰,可以令{s(n)}所组成的序列集合中的任意两个序列{s 1(n)}和{s 2(n)}满足如上的条件,且这样做也可以提高网络设备的接收成功率。
作为第一种示例,如果k大于或等于2,那么序列s的元素可以满足
Figure PCTCN2020070322-appb-001012
Figure PCTCN2020070322-appb-001013
其中
Figure PCTCN2020070322-appb-001014
满足:
Figure PCTCN2020070322-appb-001015
或,
Figure PCTCN2020070322-appb-001016
其中
Figure PCTCN2020070322-appb-001017
为M长的向量,且
Figure PCTCN2020070322-appb-001018
或,
Figure PCTCN2020070322-appb-001019
或,
Figure PCTCN2020070322-appb-001020
其中
Figure PCTCN2020070322-appb-001021
为M长的向量,且
Figure PCTCN2020070322-appb-001022
其中,
Figure PCTCN2020070322-appb-001023
为至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-001024
为至少两个M长的码字中的第四码字,第三码字属于第三循环码的码字集合,第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-001025
是与
Figure PCTCN2020070322-appb-001026
相关的M长的向量。根据如前的定义可知,
Figure PCTCN2020070322-appb-001027
Figure PCTCN2020070322-appb-001028
均为M长的向量,
Figure PCTCN2020070322-appb-001029
Figure PCTCN2020070322-appb-001030
均为2M长的码字,通过两个2M长的码字就可以构造4M长的码字,4M长的码字例如为(c(0),c(1),…,c(2M-1),(c(2M),c(2M+1),…,c(4M-1))。
关于
Figure PCTCN2020070322-appb-001031
的生成方式,可参考对于前文中的
Figure PCTCN2020070322-appb-001032
的生成方式的介绍,不多赘述。其中,码字
Figure PCTCN2020070322-appb-001033
Figure PCTCN2020070322-appb-001034
之间的映射关系和码字
Figure PCTCN2020070322-appb-001035
Figure PCTCN2020070322-appb-001036
之间的映射关系可以是同一种映射关系,或者也可以是不同的映射关系。
例如,M=31,要通过4个M长的码字构造4M长的码字,也就是序列{c(n)}的长度=124。关于本示例可以参考图3。从图3中可知,根据
Figure PCTCN2020070322-appb-001037
Figure PCTCN2020070322-appb-001038
这两个M长的码字构造得到了2M长的码字,以及根据
Figure PCTCN2020070322-appb-001039
Figure PCTCN2020070322-appb-001040
这两个M长的码字构造得到了2M长的码字,再根据这两个2M长的码字构造得到了4M长的码字。
其中
Figure PCTCN2020070322-appb-001041
为31长的码字,例如为[1,1,1,…,1]或[0,0,0,…,0]。
Figure PCTCN2020070322-appb-001042
为31长的码字,
Figure PCTCN2020070322-appb-001043
例如N为2,则
Figure PCTCN2020070322-appb-001044
表示模2加。
例如z1为31长的码字,可以通过移位寄存器生成,例如z1(n+5)=(z1(n)+z1(n+2))mod2,z1的初始状态[z1(1),z1(2),z1(3),z1(4),z1(5)]可以为[0,0,0,0,0]。
Figure PCTCN2020070322-appb-001045
Figure PCTCN2020070322-appb-001046
Figure PCTCN2020070322-appb-001047
构造而成,可表示为
Figure PCTCN2020070322-appb-001048
Figure PCTCN2020070322-appb-001049
为31长的循环码,
Figure PCTCN2020070322-appb-001050
其中z2(n+5)=(z2(n)+z2(n+2)mod2。z2的初始状态[z2(1),z2(2),z2(3),z2(4),z2(5)]可以为[0,0,0,0,0]或者其它初始值。
Figure PCTCN2020070322-appb-001051
例如为31长的Gold序列,
Figure PCTCN2020070322-appb-001052
其中,z3(n+5)= (z3(n)+z3(n+2))mod2,z4(n+5)=(z4(n)+z4(n+2)+z4(n+3)+z4(n+4))mod2。
z3的初始状态[z3(1),z3(2),z3(3),z3(4),z3(5)]和z4的初始状态[z4(1),z4(2),z4(3),z4(4),z4(5)]中,至少有一个不是[0,0,0,0,0],也就是不包括两个初始状态同时全为零的情况。
Figure PCTCN2020070322-appb-001053
Figure PCTCN2020070322-appb-001054
Figure PCTCN2020070322-appb-001055
构造而成,可表示为
Figure PCTCN2020070322-appb-001056
其中,对于移位寄存器序列来说,确定了移位寄存器序列的初始状态,或者确定了移位寄存器序列的循环移位值,也就确定了相应的移位寄存器序列。例如,确定了
Figure PCTCN2020070322-appb-001057
Figure PCTCN2020070322-appb-001058
的移位寄存器序列的初始状态,或者移位寄存器序列的循环移位值,也就确定了
Figure PCTCN2020070322-appb-001059
Figure PCTCN2020070322-appb-001060
图3所示是通过线性方式构造4M长的码字的一个示例,下面再介绍通过非线性的方式构造4M长的码字的一个示例。
例如,M=31,要通过4个M长的码字构造4M长的码字,也就是序列{c(n)}的长度=124。关于本示例可以参考图4A。
其中,v2为31长的循环码,例如为[1,1,1,…,1]或[0,0,0,…,0]。
u2为31长的循环码,u2=(a×g1)mod 2,其中a为6长的向量,a=[a(1),a(2),…,a(6)],g1为6×31的生成矩阵:
g1=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0 0,1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1 0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0 0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0 0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1];
v3由u2和v2构造而成,可表示为
Figure PCTCN2020070322-appb-001061
v1为31长的循环码,v1=(b×g1)mod 2,其中b=[b(1),b(2),…,b(6)]为6长的向量,g1为6×31的生成矩阵。
u1′(v1)为31长的码字,
Figure PCTCN2020070322-appb-001062
其中g2为6×31的生成矩阵:
g2=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1 0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,1,1,1,1,1,0,0,0,0,0,1,1 0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0,0,0 0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0,0 0,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0];
u1为31长的循环码,u1=(c×g3)mod 2,其中c=[c(1),c(2),…,c(11)]为11长的向量,c 不能为全零向量,g3为11×31的生成矩阵:
g3=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0 0,1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1 0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0 0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0 0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1 1,0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0 0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1 0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1 0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1,0 0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1]
u3由u1,v1和u1′(v1)构造而成,可表示为
Figure PCTCN2020070322-appb-001063
在本申请实施例中,通过两个M长的码字可以构造得到2M长的码字,两个M长的码字为循环码,并可以保证构造得到的2M长码字是循环码。而同时,所述的两个M长的码字也可以是分别由两个M/2长的码字通过相同的方式构造得到,进一步的,所述的M/2长的码字也可以是通过M/4的码字通过相同方式构造得到,以此类推。
例如,通过第一码字和第二码字得到了2M长的码字,而第一码字可以由两个M/2长的码字构造得到,第二码字也可以由两个M/2长的码字构造得到。那么作为第二种示例,第一码字和第二码字均为M长的码字,第一码字
Figure PCTCN2020070322-appb-001064
满足第一条件,或,第二码字
Figure PCTCN2020070322-appb-001065
满足第二条件,或,第一码字
Figure PCTCN2020070322-appb-001066
满足第一条件,以及第二码字
Figure PCTCN2020070322-appb-001067
满足第二条件。
其中,第一条件包括:
Figure PCTCN2020070322-appb-001068
Figure PCTCN2020070322-appb-001069
其中
Figure PCTCN2020070322-appb-001070
Figure PCTCN2020070322-appb-001071
长的向量,且
Figure PCTCN2020070322-appb-001072
Figure PCTCN2020070322-appb-001073
其中
Figure PCTCN2020070322-appb-001074
Figure PCTCN2020070322-appb-001075
长的向量,且
Figure PCTCN2020070322-appb-001076
为第九码字,
Figure PCTCN2020070322-appb-001077
为第十码字,第九码字属于第九循环码的码字集合,第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-001078
是与
Figure PCTCN2020070322-appb-001079
相关的
Figure PCTCN2020070322-appb-001080
长的向量,第九码字包括的元素的取值属于第一集合,第十码字包括的元素的取值属于第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-001081
表示模N加运算,第一集合为{0,1,…,N-1}。
第二条件包括:
Figure PCTCN2020070322-appb-001082
Figure PCTCN2020070322-appb-001083
其中
Figure PCTCN2020070322-appb-001084
Figure PCTCN2020070322-appb-001085
长的向量,且
Figure PCTCN2020070322-appb-001086
Figure PCTCN2020070322-appb-001087
其中
Figure PCTCN2020070322-appb-001088
Figure PCTCN2020070322-appb-001089
长的向量,且
Figure PCTCN2020070322-appb-001090
其中,
Figure PCTCN2020070322-appb-001091
为第十一码字,
Figure PCTCN2020070322-appb-001092
为第十二码字,第十一码字属于第十一循环码的码字集合,第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-001093
是与
Figure PCTCN2020070322-appb-001094
相关的
Figure PCTCN2020070322-appb-001095
长的向量,第十一码字包括的元素的取值属于第一集合,第十二码字包括的元素的取值属于第一集合。
例如M/2=31,要通过4个M/2长的码字构造2M长的码字,也就是序列{c(n)}的长度=124。关于本示例可以参考图4B。从图4B中可知,根据
Figure PCTCN2020070322-appb-001096
Figure PCTCN2020070322-appb-001097
这两个M/2长的码字构造得到了M长的码字,以及根据
Figure PCTCN2020070322-appb-001098
Figure PCTCN2020070322-appb-001099
这两个M/2长的码字构造得到了M长的码字,再根据这两个M长的码字构造得到了2M长的码字。
其中
Figure PCTCN2020070322-appb-001100
为31长的码字,例如为[1,1,1,…,1]或[0,0,0,…,0]。
Figure PCTCN2020070322-appb-001101
为31长的码字,
Figure PCTCN2020070322-appb-001102
例如N为2,则
Figure PCTCN2020070322-appb-001103
表示模2加。
例如z1为31长的码字,可以通过移位寄存器生成,例如z1(n+5)=(z1(n)+z1(n+2))mod2,z1的初始状态[z1(1),z1(2),z1(3),z1(4),z1(5)]可以为[0,0,0,0,0]。
Figure PCTCN2020070322-appb-001104
Figure PCTCN2020070322-appb-001105
Figure PCTCN2020070322-appb-001106
构造而成,可表示为
Figure PCTCN2020070322-appb-001107
其中
Figure PCTCN2020070322-appb-001108
Figure PCTCN2020070322-appb-001109
为31长的循环码,
Figure PCTCN2020070322-appb-001110
其中z2(n+5)=(z2(n)+z2(n+2)mod2。z2的初始状态[z2(1),z2(2),z2(3),z2(4),z2(5)]可以为[0,0,0,0,0]或者其它初始值。
Figure PCTCN2020070322-appb-001111
例如为31长的Gold序列,
Figure PCTCN2020070322-appb-001112
其中,z3(n+5)=(z3(n)+z3(n+2))mod 2,z4(n+5)=(z4(n)+z4(n+2)+z4(n+3)+z4(n+4))mod 2。
z3的初始状态[z3(1),z3(2),z3(3),z3(4),z3(5)]和z4的初始状态[z4(1),z4(2),z4(3),z4(4),z4(5)]中,至少有一个不是[0,0,0,0,0],也就是不包括z3和z4的初始状态同时全为零的情况。
Figure PCTCN2020070322-appb-001113
Figure PCTCN2020070322-appb-001114
Figure PCTCN2020070322-appb-001115
构造而成,可表示为
Figure PCTCN2020070322-appb-001116
其中
Figure PCTCN2020070322-appb-001117
Figure PCTCN2020070322-appb-001118
2M长的码字
Figure PCTCN2020070322-appb-001119
Figure PCTCN2020070322-appb-001120
Figure PCTCN2020070322-appb-001121
构造而成,可表示为
Figure PCTCN2020070322-appb-001122
其中
Figure PCTCN2020070322-appb-001123
Figure PCTCN2020070322-appb-001124
对于移位寄存器序列来说,确定了移位寄存器序列的初始状态,或者确定了移位寄存器序列的循环移位值,也就确定了相应的移位寄存器序列。例如,确定了
Figure PCTCN2020070322-appb-001125
Figure PCTCN2020070322-appb-001126
的移位寄存器序列的初始状态,或者移位寄存器序列的循环移位值,也就确定了
Figure PCTCN2020070322-appb-001127
Figure PCTCN2020070322-appb-001128
图4B所示是通过线性方式构造2M长的码字的一个示例,下面再介绍通过非线性的方式构造2M长的码字的一个示例。
例如,M/2=31,要通过4个M/2长的码字构造2M长的码字,也就是序列{c(n)}的长度=124。关于本示例可以参考图4C。
其中,v2为31长的循环码,例如为[1,1,1,…,1]或[0,0,0,…,0]。
u2为31长的循环码,u2=(a×g1)mod 2,其中a为6长的向量,a=[a(1),a(2),…,a(6)],g1为6×31的生成矩阵:
g1=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0 0,1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1 0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0 0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0 0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1];
v3由u2和v2构造而成,可表示为
Figure PCTCN2020070322-appb-001129
其中(v2 a(0),v2 a(1),v2 a(2),v2 a(3),...,v2 a(30))=(v2(0),0,v2(2),0,...,v2(30)),(v2 b(0),v2 b(1),v2 b(2),v2 b(3),...,v2 b(30))=(0,v2(1),0,v2(3),...,0)。
v1为31长的循环码,v1=(b×g1)mod 2,其中b=[b(1),b(2),…,b(6)]为6长的向量,g1为6×31的生成矩阵。
u1′(v1)为31长的码字,
Figure PCTCN2020070322-appb-001130
其中g2为6×31的生成矩阵:
g2=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1 0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,1,0,0,1,1,1,1,1,1,0,0,0,0,0,1,1 0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0,0,0 0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0,0  0,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,1,1,0,0,1,1,0];
u1为31长的循环码,u1=(c×g3)mod 2,其中c=[c(1),c(2),…,c(11)]为11长的向量,c能为全零向量,g3为11×31的生成矩阵:
g3=[1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0 0,1,0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1 0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0 0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0 0,0,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1 1,0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0 0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1 0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1 0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1,0 0,0,0,1,0,1,0,1,1,0,1,0,0,0,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1]
u3由u1,v1和u1′(v1)构造而成,可表示为
Figure PCTCN2020070322-appb-001131
Figure PCTCN2020070322-appb-001132
其中(v1 a(0),v1 a(1),v1 a(2),v1 a(3),...,v1 a(30))=(v1(0),0,v1(2),0,...,v1(30)),(v1 b(0),v1 b(1),v1 b(2),v1 b(3),...,v1 b(30))=(0,v1(1),0,v1(3),...,0)。
2M长的码字u4由u3,v3构造而成,可表示为
Figure PCTCN2020070322-appb-001133
其中(v3 a(0),v3 a(1),v3 a(2),v3 a(3),...,v3 a(30))=(v3(0),0,v3(2),0,...,v3(30)),(v3 b(0),v3 b(1),v3 b(2),v3 b(3),...,v3 b(30))=(0,v3(1),0,v3(3),...,0)。
例如,通过第一码字和第二码字得到了2M长的码字,第一码字可以由两个M/2长的第九码字和第十码字构造得到,第二码字也可以由两个M/2长的第十一码字和第十二码字构造得到。作为第三种示例,码字所满足的条件可以包括如下的一项或如下多项的任意组合:第九码字满足第三条件,第十码字满足第四条件,第十一码字满足第五条件,或,第十二码字满足第六条件。例如,第九码字满足第三条件,第十码字满足第四条件,第十一码字满足第五条件,以及第十二码字满足第六条件,或者,第九码字满足第三条件,第十码字不满足第四条件,第十一码字不满足第五条件,以及第十二码字满足第六条件,或者,第九码字不满足第三条件,第十码字满足第四条件,第十一码字满足第五条件,以及第十二码字满足第六条件,或者,第九码字满足第三条件,第十码字满足第四条件,第十一码字不满足第五条件,以及第十二码字不满足第六条件,等等。
第三条件包括:
Figure PCTCN2020070322-appb-001134
Figure PCTCN2020070322-appb-001135
其中
Figure PCTCN2020070322-appb-001136
Figure PCTCN2020070322-appb-001137
长的向量,且
Figure PCTCN2020070322-appb-001138
Figure PCTCN2020070322-appb-001139
Figure PCTCN2020070322-appb-001140
其中
Figure PCTCN2020070322-appb-001141
Figure PCTCN2020070322-appb-001142
长的向量,且
Figure PCTCN2020070322-appb-001143
其中,
Figure PCTCN2020070322-appb-001144
为第十三码字,
Figure PCTCN2020070322-appb-001145
为第十四码字,第十三 码字属于第十三循环码的码字集合,第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-001146
是与
Figure PCTCN2020070322-appb-001147
相关的
Figure PCTCN2020070322-appb-001148
长的向量,第十三码字包括的元素的取值属于第一集合,第十四码字包括的元素的取值属于第一集合。
第四条件包括:
Figure PCTCN2020070322-appb-001149
Figure PCTCN2020070322-appb-001150
其中
Figure PCTCN2020070322-appb-001151
Figure PCTCN2020070322-appb-001152
长的向量,且
Figure PCTCN2020070322-appb-001153
或,
Figure PCTCN2020070322-appb-001154
Figure PCTCN2020070322-appb-001155
其中
Figure PCTCN2020070322-appb-001156
Figure PCTCN2020070322-appb-001157
长的向量,且
Figure PCTCN2020070322-appb-001158
其中,
Figure PCTCN2020070322-appb-001159
为第十五码字,
Figure PCTCN2020070322-appb-001160
为第十六码字,第十五码字属于第十五循环码的码字集合,第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-001161
是与
Figure PCTCN2020070322-appb-001162
相关的
Figure PCTCN2020070322-appb-001163
长的向量,第十五码字包括的元素的取值属于第一集合,第十六码字包括的元素的取值属于第一集合。
第五条件包括:
Figure PCTCN2020070322-appb-001164
Figure PCTCN2020070322-appb-001165
其中
Figure PCTCN2020070322-appb-001166
Figure PCTCN2020070322-appb-001167
长的向量,且
Figure PCTCN2020070322-appb-001168
Figure PCTCN2020070322-appb-001169
Figure PCTCN2020070322-appb-001170
其中
Figure PCTCN2020070322-appb-001171
Figure PCTCN2020070322-appb-001172
长的向量,且
Figure PCTCN2020070322-appb-001173
其中,
Figure PCTCN2020070322-appb-001174
为第十七码字,
Figure PCTCN2020070322-appb-001175
为第十八码字,第十七码字属于第十七循环码的码字集合,第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-001176
是与
Figure PCTCN2020070322-appb-001177
相关的
Figure PCTCN2020070322-appb-001178
长的向量,第十七码字包括的元素的取值属于第一集合,第十八码字包括的元素的取值属于第一集合。
第六条件包括:
Figure PCTCN2020070322-appb-001179
Figure PCTCN2020070322-appb-001180
其中
Figure PCTCN2020070322-appb-001181
Figure PCTCN2020070322-appb-001182
长的向量,且
Figure PCTCN2020070322-appb-001183
Figure PCTCN2020070322-appb-001184
Figure PCTCN2020070322-appb-001185
其中
Figure PCTCN2020070322-appb-001186
Figure PCTCN2020070322-appb-001187
长的 向量,且
Figure PCTCN2020070322-appb-001188
其中,
Figure PCTCN2020070322-appb-001189
为第十九码字,
Figure PCTCN2020070322-appb-001190
为第二十码字,第十九码字属于第十九循环码的码字集合,第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-001191
是与
Figure PCTCN2020070322-appb-001192
相关的
Figure PCTCN2020070322-appb-001193
长的向量,第十九码字包括的元素的取值属于第一集合,第二十码字包括的元素的取值属于第一集合。
作为第二种示例,如果k大于或等于3,则序列s的元素可以满足
Figure PCTCN2020070322-appb-001194
Figure PCTCN2020070322-appb-001195
其中:
Figure PCTCN2020070322-appb-001196
其中,
Figure PCTCN2020070322-appb-001197
Figure PCTCN2020070322-appb-001198
或,
Figure PCTCN2020070322-appb-001199
Figure PCTCN2020070322-appb-001200
或,
Figure PCTCN2020070322-appb-001201
其中
Figure PCTCN2020070322-appb-001202
是与
Figure PCTCN2020070322-appb-001203
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-001204
Figure PCTCN2020070322-appb-001205
或,
Figure PCTCN2020070322-appb-001206
Figure PCTCN2020070322-appb-001207
为至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-001208
为至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-001209
为至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-001210
为至少两个M长的码字中的第八码字,第五码字属于第五循环码的码字集合,第六码字属于第六循环码的码字集合,第七码字属于第七循环码的码字集合,第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-001211
均为M长的向量,
Figure PCTCN2020070322-appb-001212
是与
Figure PCTCN2020070322-appb-001213
相关的M长的向量,
Figure PCTCN2020070322-appb-001214
是与
Figure PCTCN2020070322-appb-001215
相关的M长的向量。根据如前的定义可知,
Figure PCTCN2020070322-appb-001216
Figure PCTCN2020070322-appb-001217
均为M长的向量,
Figure PCTCN2020070322-appb-001218
Figure PCTCN2020070322-appb-001219
均为2M长的码字,
Figure PCTCN2020070322-appb-001220
Figure PCTCN2020070322-appb-001221
均为4M长的码字。通过两个4M长的码字就可以构造8M长的码字,8M长的码字例如为(c(0),c(1),…,c(4M-1)),(c(4M),c(4M+1),…,c(8M-1))。
关于
Figure PCTCN2020070322-appb-001222
的生成方式,可参考对于前文中的
Figure PCTCN2020070322-appb-001223
的生成方式的介绍,不多赘述。其中,码字
Figure PCTCN2020070322-appb-001224
Figure PCTCN2020070322-appb-001225
之间的映射关系、码字
Figure PCTCN2020070322-appb-001226
Figure PCTCN2020070322-appb-001227
之间的映射关系、码字
Figure PCTCN2020070322-appb-001228
Figure PCTCN2020070322-appb-001229
之间的映射关系和码字
Figure PCTCN2020070322-appb-001230
Figure PCTCN2020070322-appb-001231
之间的映射关系,这四种映射关系可以是同一种映射关系,或者也可以分别是不同的映射关系,或者也可能这四种映射关系中的至少两种映射关系是 同一种映射关系,这四种映射关系中除了至少两种映射关系之外剩余的映射关系是不同的映射关系。那么在构造更长的码字时,更多的映射关系之间也是同样的理解。
如上是对于构造4M长的码字和8M长的码字的两个示例,如果需要构造更长的码字,则方法也是类似的,不多赘述。另外,对于第一码字、第二码字或第三码字等描述,只是为了区分不同的码字,并不是限制各个码字之间的顺序,例如对于2M长的码字来说,第一码字不一定排在第二码字之前,或者对于4M长的码字来说,第三码字不一定排在第四码字之前,等等。
在本申请实施例中,至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001232
Figure PCTCN2020070322-appb-001233
这2 k个码字分别属于2 k个循环码的码字集合。其中,前文中所述的第一码字、第二码字、第三码字、第四码字、第五码字、第六码字、第七码字、第八码字、第九码字、第十码字、第十一码字、第十二码字、第十三码字、第十四码字、第十五码字、第十六码字、第十七码字、第十八码字、第十九码字和第二十码字等均属于2 k个码字。
目前终端设备在发送信号时,由于各个终端设备与网络设备之间的距离可能不同,即使各个终端设备同时发送信号,网络设备可能也无法同时接收。那么,终端设备可以通过上行时间提前(timing advance)信息来调整上行发射定时,使得各个终端设备发送的信号尽量能够同时到达网络设备。而在没有上行timing advance信息的情况下,终端设备距离网络设备越远,则该终端设备发送的信号到达网络设备的时间就越晚。以终端设备发送RACH序列为例,目前的RACH序列通过ZC序列实现,ZC序列是完全循环序列,网络设备可以通过ZC序列的完全循环的形式获得终端设备的延迟信息。而本申请实施例中,通过至少两个M长的码字得到的序列{c(n)}整体可以是循环的,且至少两个M长的码字中的每个码字也可以是各自循环的。在本申请实施例中,例如至少两个M长的码字的个数为2 k,其中的第2 k个码字可以认为是至少两个M长的码字中的最后一个码字,第2 k个码字例如是网络设备在接收第一信号后首先需要解码的码字,第2 k个码字的循环移位值可以属于第二集合,第二集合包括至少两个元素,至少两个元素中的任意两个元素之差再模M后大于或等于L,L为大于1的整数。例如,第二集合中包括元素c和元素d,那么也就是,(c-d)mod M≥L。例如网络设备可以向终端设备发送第二指示信息,第二指示信息可以用于指示第2 k个码字的循环移位值。终端设备接收第二指示信息后,就可以确定第2 k个码字的循环移位值。一个码字的循环移位值,也就是该码字可以通过该循环移位值得到不同的码字。网络设备需要首先解码第2 k个码字,如果分配给两个终端设备的M长的码字中,只有第2 k个码字是不同的(其中,因为终端设备可能都需要向网络设备发送信号,因此本申请实施例提供的技术方案是适用于多个终端设备的,网络设备可以给终端设备分配不同的码字,给每个终端设备都可以分配至少两个码字,而分配给两个终端设备的码字中,只要有一个码字不同,就表明分配给终端设备的码字是不同的),如果第2 k个码字的循环移位值较小,而两个终端设备之间的延迟又相差不多,则网络设备接收的来自两个终端设备的信号就可能是完全相同的,这样网络设备就无法区分不同的终端设备的延迟信息。因此本申请实施例通过第二集合的方式,使得第2 k个码字的循环移位值较大,从而网络设备根据解码第2 k个码字,可以确定终端设备的延迟信息,使得本申请实施例的技术方案也能够适用于没有上行timing advance信息的情况。
另外,作为一种可选的方式,序列{c(n)}也可以有循环移位值,序列{c(n)}的循环移位值可以属于第三集合,第三集合可以包括至少两个元素,所述的至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。例如网络设备可以向终端设备发送第一指示信息,第一指示信息可以用于指示序列{c(n)}的循环移位值。终端设备接收第一指示信息后,就可以确定序列{c(n)}的循环移位值。序列{c(n)}的循环移位值和第2 k个码字的循环移位值之间可以没有关联,或者,序列{c(n)}的循环移位值和第2 k个码字的循环移位值之间也可以满足一定的函数关系。序列{c(n)}的循环移位值和第2 k个码字的循环移位值可以相等,也可以不等。对应于不同的循环移位值的序列{c(n)}可以被分配给不同的终端设备,如果序列{c(n)}的循环移位值较小,而两个终端设备之间的延迟又相差不多,则网络设备接收的来自两个终端设备的信号就可能是完全相同的,这样网络设备就无法区分不同的终端设备的延迟信息。因此本申请实施例通过第三集合的方式,使得序列{c(n)}的循环移位值较大,从而网络设备根据序列{c(n)}就可以确定终端设备的延迟信息,使得本申请实施例的技术方案也能够适用于没有上行timing advance信息的情况。
而且,当终端设备发送RACH序列时,如果没有上行timing advance信息,则需要不同的终端设备使用的序列的循环移位值之差足够大,以克服时延的偏差,因此需要给不同的终端设备分配合适的循环移位值。而移位寄存器序列可以通过固定初始值、使用不同的循环移位值的方式得到不同的序列,使用这种方式生成的序列满足循环码的特征,且可以通过指示循环移位值的方式为不同的终端设备分配不同的序列。因此在本申请实施例中,例如至少两个M长的码字中仅包括2 k个码字,也就是至少两个M长的码字的个数为2 k,那么其中的第2 k个循环码(也就是第2 k个码字)可以是移位寄存器序列。另外在本申请实施例中所述的移位寄存器序列,可能是通过移位寄存器生成的,或者也可能是通过其他方式生成的,但是符合通过移位寄存器生成的序列的特性。
对于网络设备来说,接收第一信号后,可以获得第一信号的前导序列。例如,网络设备可以生成至少两个M长的码字,至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001234
Figure PCTCN2020070322-appb-001235
这2 k个码字属于2 k个循环码的码字集合,其中,一个码字属于一个循环码的码字集合,网络设备可以根据至少两个M长的码字获得前导序列。
例如终端设备发送的是2M长的序列,该序列例如为
Figure PCTCN2020070322-appb-001236
请参考图5,网络设备接收到的信号为y={y(n),n=0,1,…,2M-1},图5中,
Figure PCTCN2020070322-appb-001237
Figure PCTCN2020070322-appb-001238
需注意的是,图5中的h是需要网络设备进行估计的终端设备的时延。
网络设备首先检测
Figure PCTCN2020070322-appb-001239
其中的
Figure PCTCN2020070322-appb-001240
是网络设备本地生成的序列,
Figure PCTCN2020070322-appb-001241
是序列y中仅包括v的部分,例如
Figure PCTCN2020070322-appb-001242
Figure PCTCN2020070322-appb-001243
表示序列y中去掉u后只剩下v的部分。
Figure PCTCN2020070322-appb-001244
表示对
Figure PCTCN2020070322-appb-001245
Figure PCTCN2020070322-appb-001246
进行互相关操作,v 0表示本地序列中与
Figure PCTCN2020070322-appb-001247
互相关值最大的序列,通过v 0可以得到时延导致的循环移位值h以及
Figure PCTCN2020070322-appb-001248
其中,时延导致的循环移位值h也就是网络设备估计的终端设备的时延。
在得到v 0后,网络设备可以进一步检测
Figure PCTCN2020070322-appb-001249
其中的
Figure PCTCN2020070322-appb-001250
就是接收的信号里只包括u的部分,
Figure PCTCN2020070322-appb-001251
是网络设备本地生成的序列,
Figure PCTCN2020070322-appb-001252
表示网络设备对网络设备本地生成的序列和接收的信号y中只包括u的部分进行互相关操作,u 0表示网络设备检测得到的u的部分。
可以看到,网络设备可以对接收的序列中只包括v的部分进行解码,再对接收的序列中只包括u的部分进行解码,无需对接收的序列整个进行解码,降低了网络设备的接收复杂度,而且在性能上也基本没有牺牲。
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此,上文中的内容均可以用于后续实施例中,重复的内容不再赘述。
图6示出了一种通信装置600的结构示意图。该通信装置600可以实现上文中涉及的终端设备的功能。该通信装置600可以是上文中所述的网络设备,或者可以是设置在上文中所述的网络设备中的芯片。该通信装置600可以包括处理器601和收发器602。其中,处理器601可以用于执行图2所示的实施例中的S21,和/或用于支持本文所描述的技术的其他过程,例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器602可以用于执行图2所示的实施例中的S22,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如,处理器601,用于根据长度为2 kM的序列s生成信号的前导序列,所述信号为前导信号或参考信号,所述序列s中的元素
Figure PCTCN2020070322-appb-001253
或者
Figure PCTCN2020070322-appb-001254
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-001255
表示下取整,
Figure PCTCN2020070322-appb-001256
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-001257
以及第二码字
Figure PCTCN2020070322-appb-001258
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-001259
其中
Figure PCTCN2020070322-appb-001260
为M长的向量,且
Figure PCTCN2020070322-appb-001261
或,
Figure PCTCN2020070322-appb-001262
Figure PCTCN2020070322-appb-001263
或,
Figure PCTCN2020070322-appb-001264
Figure PCTCN2020070322-appb-001265
其中
Figure PCTCN2020070322-appb-001266
为M长的向量,且
Figure PCTCN2020070322-appb-001267
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-001268
是与
Figure PCTCN2020070322-appb-001269
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的 整数,
Figure PCTCN2020070322-appb-001270
表示模N加运算,所述第一集合为{0,1,…,N-1};
收发器602,用于发送所述前导序列。
在一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-001271
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-001272
Figure PCTCN2020070322-appb-001273
Figure PCTCN2020070322-appb-001274
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-001275
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001276
Figure PCTCN2020070322-appb-001277
其中
Figure PCTCN2020070322-appb-001278
满足:
Figure PCTCN2020070322-appb-001279
或,
Figure PCTCN2020070322-appb-001280
其中
Figure PCTCN2020070322-appb-001281
为M长的向量,且
Figure PCTCN2020070322-appb-001282
或,
Figure PCTCN2020070322-appb-001283
或,
Figure PCTCN2020070322-appb-001284
其中
Figure PCTCN2020070322-appb-001285
为M长的向量,且
Figure PCTCN2020070322-appb-001286
其中,
Figure PCTCN2020070322-appb-001287
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-001288
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-001289
是与
Figure PCTCN2020070322-appb-001290
相关的M长的向量,所述k大于或等于2。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001291
Figure PCTCN2020070322-appb-001292
其中:
Figure PCTCN2020070322-appb-001293
其中,
Figure PCTCN2020070322-appb-001294
Figure PCTCN2020070322-appb-001295
或,
Figure PCTCN2020070322-appb-001296
Figure PCTCN2020070322-appb-001297
或,
Figure PCTCN2020070322-appb-001298
其中
Figure PCTCN2020070322-appb-001299
是与
Figure PCTCN2020070322-appb-001300
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-001301
Figure PCTCN2020070322-appb-001302
或,
Figure PCTCN2020070322-appb-001303
Figure PCTCN2020070322-appb-001304
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-001305
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-001306
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-001307
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-001308
均为M长的向量,
Figure PCTCN2020070322-appb-001309
是与
Figure PCTCN2020070322-appb-001310
相关的M长的向量,
Figure PCTCN2020070322-appb-001311
是与
Figure PCTCN2020070322-appb-001312
相关的M长的向量,所述k大于或等于3。
在一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-001313
满足:
Figure PCTCN2020070322-appb-001314
Figure PCTCN2020070322-appb-001315
其中
Figure PCTCN2020070322-appb-001316
Figure PCTCN2020070322-appb-001317
长的向量,且
Figure PCTCN2020070322-appb-001318
Figure PCTCN2020070322-appb-001319
Figure PCTCN2020070322-appb-001320
其中
Figure PCTCN2020070322-appb-001321
Figure PCTCN2020070322-appb-001322
长的向量,且
Figure PCTCN2020070322-appb-001323
和\或,
所述第二码字
Figure PCTCN2020070322-appb-001324
满足
Figure PCTCN2020070322-appb-001325
Figure PCTCN2020070322-appb-001326
其中
Figure PCTCN2020070322-appb-001327
Figure PCTCN2020070322-appb-001328
长的向量,且
Figure PCTCN2020070322-appb-001329
Figure PCTCN2020070322-appb-001330
Figure PCTCN2020070322-appb-001331
其中
Figure PCTCN2020070322-appb-001332
Figure PCTCN2020070322-appb-001333
长的向量,且
Figure PCTCN2020070322-appb-001334
其中,
Figure PCTCN2020070322-appb-001335
为第九码字,
Figure PCTCN2020070322-appb-001336
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-001337
是与
Figure PCTCN2020070322-appb-001338
相关的
Figure PCTCN2020070322-appb-001339
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-001340
为第十一码字,
Figure PCTCN2020070322-appb-001341
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-001342
是与
Figure PCTCN2020070322-appb-001343
相关的
Figure PCTCN2020070322-appb-001344
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-001345
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-001346
满足:
Figure PCTCN2020070322-appb-001347
Figure PCTCN2020070322-appb-001348
其中
Figure PCTCN2020070322-appb-001349
Figure PCTCN2020070322-appb-001350
长的向量,且
Figure PCTCN2020070322-appb-001351
Figure PCTCN2020070322-appb-001352
其中
Figure PCTCN2020070322-appb-001353
Figure PCTCN2020070322-appb-001354
长的向量,且
Figure PCTCN2020070322-appb-001355
所述第十码字
Figure PCTCN2020070322-appb-001356
满足:
Figure PCTCN2020070322-appb-001357
Figure PCTCN2020070322-appb-001358
其中
Figure PCTCN2020070322-appb-001359
Figure PCTCN2020070322-appb-001360
长的向量,且
Figure PCTCN2020070322-appb-001361
Figure PCTCN2020070322-appb-001362
其中
Figure PCTCN2020070322-appb-001363
Figure PCTCN2020070322-appb-001364
长的向量,且
Figure PCTCN2020070322-appb-001365
所述第十一码字
Figure PCTCN2020070322-appb-001366
满足:
Figure PCTCN2020070322-appb-001367
Figure PCTCN2020070322-appb-001368
其中
Figure PCTCN2020070322-appb-001369
Figure PCTCN2020070322-appb-001370
长的向量,且
Figure PCTCN2020070322-appb-001371
Figure PCTCN2020070322-appb-001372
其中
Figure PCTCN2020070322-appb-001373
Figure PCTCN2020070322-appb-001374
长的向量,且
Figure PCTCN2020070322-appb-001375
或,
所述第十二码字
Figure PCTCN2020070322-appb-001376
满足:
Figure PCTCN2020070322-appb-001377
Figure PCTCN2020070322-appb-001378
其中
Figure PCTCN2020070322-appb-001379
Figure PCTCN2020070322-appb-001380
长的向量,且
Figure PCTCN2020070322-appb-001381
Figure PCTCN2020070322-appb-001382
其中
Figure PCTCN2020070322-appb-001383
Figure PCTCN2020070322-appb-001384
长的向量,且
Figure PCTCN2020070322-appb-001385
其中,
Figure PCTCN2020070322-appb-001386
为第十三码字,
Figure PCTCN2020070322-appb-001387
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-001388
是与
Figure PCTCN2020070322-appb-001389
相关的
Figure PCTCN2020070322-appb-001390
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001391
为第十五码字,
Figure PCTCN2020070322-appb-001392
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-001393
是与
Figure PCTCN2020070322-appb-001394
相关的
Figure PCTCN2020070322-appb-001395
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001396
为第十七码字,
Figure PCTCN2020070322-appb-001397
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-001398
是与
Figure PCTCN2020070322-appb-001399
相关的
Figure PCTCN2020070322-appb-001400
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001401
为第十九码字,
Figure PCTCN2020070322-appb-001402
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-001403
是与
Figure PCTCN2020070322-appb-001404
相关的
Figure PCTCN2020070322-appb-001405
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-001406
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
在一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
在一种可能的实施方式中,收发器602还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
在一种可能的实施方式中,所述至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001407
Figure PCTCN2020070322-appb-001408
所述2 k个码字分别属于2 k个循环码的码字集合。
在一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
在一种可能的实施方式中,收发器602还用于:
接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
图7示出了一种通信装置700的结构示意图。该通信装置700可以实现上文中涉及的第一终端设备的功能。该通信装置700可以是上文中所述的第一终端设备,或者可以是设置在上文中所述的第一终端设备中的芯片。该通信装置700可以包括处理器701和收发器702。其中,处理器701可以用于执行图2所示的实施例中的S23,和/或用于支持本文所描述的技术的其他过程,例如可以执行前文中所述的网络设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器702可以用于执行图2所示的实施例中的S22,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的网络设备所执行的全部的收发过程或部分的收发过程。
例如,收发器702,用于接收第一信号,所述第一信号为前导信号或参考信号;
处理器701,用于获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-001409
或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-001410
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-001411
以及第二码字
Figure PCTCN2020070322-appb-001412
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-001413
其中
Figure PCTCN2020070322-appb-001414
为M长的向量,且
Figure PCTCN2020070322-appb-001415
或,
Figure PCTCN2020070322-appb-001416
Figure PCTCN2020070322-appb-001417
或,
Figure PCTCN2020070322-appb-001418
Figure PCTCN2020070322-appb-001419
其中
Figure PCTCN2020070322-appb-001420
为M长的向量,且
Figure PCTCN2020070322-appb-001421
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-001422
是与
Figure PCTCN2020070322-appb-001423
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-001424
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-001425
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-001426
Figure PCTCN2020070322-appb-001427
Figure PCTCN2020070322-appb-001428
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-001429
在一种可能的实施方式中,处理器701用于通过如下方式获得所述第一信号的前导序列:
生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001430
Figure PCTCN2020070322-appb-001431
所述2 k个码字分别属于2 k个循环码的码字集合;
根据所述至少一个M长的码字,获得所述前导序列。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001432
Figure PCTCN2020070322-appb-001433
其中
Figure PCTCN2020070322-appb-001434
满足:
Figure PCTCN2020070322-appb-001435
或,
Figure PCTCN2020070322-appb-001436
其中
Figure PCTCN2020070322-appb-001437
为M长的向量,且
Figure PCTCN2020070322-appb-001438
或,
Figure PCTCN2020070322-appb-001439
或,
Figure PCTCN2020070322-appb-001440
其中
Figure PCTCN2020070322-appb-001441
为M长的向量,且
Figure PCTCN2020070322-appb-001442
其中,
Figure PCTCN2020070322-appb-001443
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-001444
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-001445
是与
Figure PCTCN2020070322-appb-001446
相关的M长的向量,所述k大于或等于2。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001447
Figure PCTCN2020070322-appb-001448
其中:
Figure PCTCN2020070322-appb-001449
其中,
Figure PCTCN2020070322-appb-001450
Figure PCTCN2020070322-appb-001451
或,
Figure PCTCN2020070322-appb-001452
Figure PCTCN2020070322-appb-001453
或,
Figure PCTCN2020070322-appb-001454
其中
Figure PCTCN2020070322-appb-001455
Figure PCTCN2020070322-appb-001456
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-001457
Figure PCTCN2020070322-appb-001458
或,
Figure PCTCN2020070322-appb-001459
Figure PCTCN2020070322-appb-001460
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-001461
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-001462
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-001463
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-001464
均为M长的向量,
Figure PCTCN2020070322-appb-001465
是与
Figure PCTCN2020070322-appb-001466
相关的M长的向量,
Figure PCTCN2020070322-appb-001467
是与
Figure PCTCN2020070322-appb-001468
相关的M长的向量,所述k大于或等 于3。
在一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-001469
满足:
Figure PCTCN2020070322-appb-001470
Figure PCTCN2020070322-appb-001471
其中
Figure PCTCN2020070322-appb-001472
Figure PCTCN2020070322-appb-001473
长的向量,且
Figure PCTCN2020070322-appb-001474
Figure PCTCN2020070322-appb-001475
Figure PCTCN2020070322-appb-001476
其中
Figure PCTCN2020070322-appb-001477
Figure PCTCN2020070322-appb-001478
长的向量,且
Figure PCTCN2020070322-appb-001479
和\或,
所述第二码字
Figure PCTCN2020070322-appb-001480
满足
Figure PCTCN2020070322-appb-001481
Figure PCTCN2020070322-appb-001482
其中
Figure PCTCN2020070322-appb-001483
Figure PCTCN2020070322-appb-001484
长的向量,且
Figure PCTCN2020070322-appb-001485
Figure PCTCN2020070322-appb-001486
Figure PCTCN2020070322-appb-001487
其中
Figure PCTCN2020070322-appb-001488
Figure PCTCN2020070322-appb-001489
长的向量,且
Figure PCTCN2020070322-appb-001490
其中,
Figure PCTCN2020070322-appb-001491
为第九码字,
Figure PCTCN2020070322-appb-001492
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-001493
是与
Figure PCTCN2020070322-appb-001494
相关的
Figure PCTCN2020070322-appb-001495
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-001496
为第十一码字,
Figure PCTCN2020070322-appb-001497
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-001498
是与
Figure PCTCN2020070322-appb-001499
相关的
Figure PCTCN2020070322-appb-001500
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-001501
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-001502
满足:
Figure PCTCN2020070322-appb-001503
Figure PCTCN2020070322-appb-001504
其中
Figure PCTCN2020070322-appb-001505
Figure PCTCN2020070322-appb-001506
长的向量,且
Figure PCTCN2020070322-appb-001507
Figure PCTCN2020070322-appb-001508
其中
Figure PCTCN2020070322-appb-001509
Figure PCTCN2020070322-appb-001510
长的向量,且
Figure PCTCN2020070322-appb-001511
所述第十码字
Figure PCTCN2020070322-appb-001512
满足:
Figure PCTCN2020070322-appb-001513
Figure PCTCN2020070322-appb-001514
其中
Figure PCTCN2020070322-appb-001515
Figure PCTCN2020070322-appb-001516
长的向量,且
Figure PCTCN2020070322-appb-001517
Figure PCTCN2020070322-appb-001518
其中
Figure PCTCN2020070322-appb-001519
Figure PCTCN2020070322-appb-001520
长的向量,且
Figure PCTCN2020070322-appb-001521
所述第十一码字
Figure PCTCN2020070322-appb-001522
满足:
Figure PCTCN2020070322-appb-001523
Figure PCTCN2020070322-appb-001524
其中
Figure PCTCN2020070322-appb-001525
Figure PCTCN2020070322-appb-001526
长的向量,且
Figure PCTCN2020070322-appb-001527
Figure PCTCN2020070322-appb-001528
其中
Figure PCTCN2020070322-appb-001529
Figure PCTCN2020070322-appb-001530
长的向量,且
Figure PCTCN2020070322-appb-001531
或,
所述第十二码字
Figure PCTCN2020070322-appb-001532
满足:
Figure PCTCN2020070322-appb-001533
Figure PCTCN2020070322-appb-001534
其中
Figure PCTCN2020070322-appb-001535
Figure PCTCN2020070322-appb-001536
长的向量,且
Figure PCTCN2020070322-appb-001537
Figure PCTCN2020070322-appb-001538
其中
Figure PCTCN2020070322-appb-001539
Figure PCTCN2020070322-appb-001540
长的向量,且
Figure PCTCN2020070322-appb-001541
其中,
Figure PCTCN2020070322-appb-001542
为第十三码字,
Figure PCTCN2020070322-appb-001543
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-001544
是与
Figure PCTCN2020070322-appb-001545
相关的
Figure PCTCN2020070322-appb-001546
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001547
为第十五码字,
Figure PCTCN2020070322-appb-001548
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-001549
是与
Figure PCTCN2020070322-appb-001550
相关的
Figure PCTCN2020070322-appb-001551
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001552
为第十七码字,
Figure PCTCN2020070322-appb-001553
为第十八码字,所述第十七码 字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-001554
是与
Figure PCTCN2020070322-appb-001555
相关的
Figure PCTCN2020070322-appb-001556
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001557
为第十九码字,
Figure PCTCN2020070322-appb-001558
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-001559
是与
Figure PCTCN2020070322-appb-001560
相关的
Figure PCTCN2020070322-appb-001561
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-001562
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
在一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
在一种可能的实施方式中,收发器702还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
在一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
在一种可能的实施方式中,收发器702还用于:
发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
在一个简单的实施例中,本领域的技术人员可以想到,还可以将通信装置600或通信装置700通过如图8A所示的通信装置800的结构实现。该通信装置800可以实现上文中涉及的终端设备或网络设备的功能。该通信装置800可以包括处理器801。
其中,在该通信装置800用于实现上文中涉及的终端设备的功能时,处理器801可以用于执行图2所示的实施例中的S21,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程;或者,在该通信装置800用于实现上文中涉及的网络设备的功能时,处理器801可以用于执行图2所示的实施例中的S23,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的网络设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。
其中,通信装置800可以通过现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片(application specific integrated circuit,ASIC),系统芯片(system on chip, SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路(digital signal processor,DSP),微控制器(micro controller unit,MCU),还可以是可编程控制器(programmable logic device,PLD)或其他集成芯片实现,则通信装置800可被设置于本申请实施例的终端设备或网络设备中,以使得终端设备或网络设备实现本申请实施例提供的方法。
在一种可选的实现方式中,该通信装置800可以包括收发组件,用于通过该通信装置800所在的设备与其他设备进行通信。其中,在该通信装置800用于实现上文中涉及的终端设备或网络设备的功能时,收发组件可以用于执行图2所示的实施例中的S22,和/或用于支持本文所描述的技术的其它过程。
在一种可选的实现方式中,该通信装置800还可以包括存储器802,可参考图8B,其中,存储器802用于存储计算机程序或指令,处理器801用于译码和执行这些计算机程序或指令。应理解,这些计算机程序或指令可包括上述终端设备或网络设备的功能程序。当第一终端设备的功能程序被处理器801译码并执行时,可使得终端设备实现本申请实施例图2所示的实施例所提供的方法中终端设备的功能。当网络设备的功能程序被处理器801译码并执行时,可使得网络设备实现本申请实施例图2所示的实施例所提供的方法中网络设备的功能。
在另一种可选的实现方式中,这些终端设备或网络设备的功能程序存储在通信装置800外部的存储器中。当终端设备的功能程序被处理器801译码并执行时,存储器802中临时存放上述终端设备的功能程序的部分或全部内容。当网络设备的功能程序被处理器801译码并执行时,存储器802中临时存放上述网络设备的功能程序的部分或全部内容。
在另一种可选的实现方式中,这些终端设备或网络设备的功能程序被设置于存储在通信装置800内部的存储器802中。当通信装置800内部的存储器802中存储有终端设备的功能程序时,通信装置800可被设置在本申请实施例的终端设备中。当通信装置800内部的存储器802中存储有网络设备的功能程序时,通信装置800可被设置在本申请实施例的网络设备中。
在又一种可选的实现方式中,这些终端设备的功能程序的部分内容存储在通信装置800外部的存储器中,这些终端设备的功能程序的其他部分内容存储在通信装置800内部的存储器802中。或,这些网络设备的功能程序的部分内容存储在通信装置800外部的存储器中,这些网络设备的功能程序的其他部分内容存储在通信装置800内部的存储器802中。
在本申请实施例中,通信装置600、通信装置700及通信装置800对应各个功能划分各个功能模块的形式来呈现,或者,可以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指ASIC,执行一个或多个软件或固件程序的处理器和存储器,集成逻辑电路,和/或其他可以提供上述功能的器件。
另外,图6所示的实施例提供的通信装置600还可以通过其他形式实现。例如该通信装置包括处理模块和收发模块。例如处理模块可通过处理器601实现,收发模块可通过收发器602实现。其中,处理模块可以用于执行图2所示的实施例中的S21,和/或用于支持本文所描述的技术的其他过程,例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发模块可以用于执行图2所示的实施例中的S22,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的终端设 备所执行的全部的收发过程或部分的收发过程。
例如,处理模块,用于根据长度为2 kM的序列s生成信号的前导序列,所述信号为前导信号或参考信号,所述序列s中的元素
Figure PCTCN2020070322-appb-001563
或者
Figure PCTCN2020070322-appb-001564
δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-001565
表示下取整,
Figure PCTCN2020070322-appb-001566
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-001567
以及第二码字
Figure PCTCN2020070322-appb-001568
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-001569
其中
Figure PCTCN2020070322-appb-001570
为M长的向量,且
Figure PCTCN2020070322-appb-001571
或,
Figure PCTCN2020070322-appb-001572
Figure PCTCN2020070322-appb-001573
或,
Figure PCTCN2020070322-appb-001574
Figure PCTCN2020070322-appb-001575
其中
Figure PCTCN2020070322-appb-001576
为M长的向量,且
Figure PCTCN2020070322-appb-001577
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-001578
是与
Figure PCTCN2020070322-appb-001579
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-001580
表示模N加运算,所述第一集合为{0,1,…,N-1};
收发模块,用于发送所述前导序列。
在一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-001581
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-001582
Figure PCTCN2020070322-appb-001583
Figure PCTCN2020070322-appb-001584
Figure PCTCN2020070322-appb-001585
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-001586
在一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-001587
属于第二十一循环码的码字集合。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001588
Figure PCTCN2020070322-appb-001589
其中
Figure PCTCN2020070322-appb-001590
满足:
Figure PCTCN2020070322-appb-001591
或,
Figure PCTCN2020070322-appb-001592
其中
Figure PCTCN2020070322-appb-001593
为M长的向量,且
Figure PCTCN2020070322-appb-001594
或,
Figure PCTCN2020070322-appb-001595
或,
Figure PCTCN2020070322-appb-001596
其中
Figure PCTCN2020070322-appb-001597
为M长的向量,且
Figure PCTCN2020070322-appb-001598
其中,
Figure PCTCN2020070322-appb-001599
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-001600
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
Figure PCTCN2020070322-appb-001601
是与
Figure PCTCN2020070322-appb-001602
相关的M长的向量,所述k大于或等于2。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001603
Figure PCTCN2020070322-appb-001604
其中:
Figure PCTCN2020070322-appb-001605
其中,
Figure PCTCN2020070322-appb-001606
Figure PCTCN2020070322-appb-001607
或,
Figure PCTCN2020070322-appb-001608
Figure PCTCN2020070322-appb-001609
或,
Figure PCTCN2020070322-appb-001610
其中
Figure PCTCN2020070322-appb-001611
是与
Figure PCTCN2020070322-appb-001612
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-001613
Figure PCTCN2020070322-appb-001614
或,
Figure PCTCN2020070322-appb-001615
Figure PCTCN2020070322-appb-001616
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-001617
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-001618
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-001619
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-001620
均为M长的向量,
Figure PCTCN2020070322-appb-001621
是与
Figure PCTCN2020070322-appb-001622
相关的M长的向量,
Figure PCTCN2020070322-appb-001623
是与
Figure PCTCN2020070322-appb-001624
相关的M长的向量,所述k大于或等于3。
在一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-001625
满足:
Figure PCTCN2020070322-appb-001626
Figure PCTCN2020070322-appb-001627
其中
Figure PCTCN2020070322-appb-001628
Figure PCTCN2020070322-appb-001629
长的向量,且
Figure PCTCN2020070322-appb-001630
Figure PCTCN2020070322-appb-001631
Figure PCTCN2020070322-appb-001632
其中
Figure PCTCN2020070322-appb-001633
Figure PCTCN2020070322-appb-001634
长的向量,且
Figure PCTCN2020070322-appb-001635
和\或,
所述第二码字
Figure PCTCN2020070322-appb-001636
满足
Figure PCTCN2020070322-appb-001637
Figure PCTCN2020070322-appb-001638
其中
Figure PCTCN2020070322-appb-001639
Figure PCTCN2020070322-appb-001640
长的向量,且
Figure PCTCN2020070322-appb-001641
Figure PCTCN2020070322-appb-001642
Figure PCTCN2020070322-appb-001643
其中
Figure PCTCN2020070322-appb-001644
Figure PCTCN2020070322-appb-001645
长的向量,且
Figure PCTCN2020070322-appb-001646
其中,
Figure PCTCN2020070322-appb-001647
为第九码字,
Figure PCTCN2020070322-appb-001648
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-001649
是与
Figure PCTCN2020070322-appb-001650
相关的
Figure PCTCN2020070322-appb-001651
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-001652
为第十一码字,
Figure PCTCN2020070322-appb-001653
为第十二码字,所述第十一码字属于第十一循环码的码字集 合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-001654
是与
Figure PCTCN2020070322-appb-001655
相关的
Figure PCTCN2020070322-appb-001656
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-001657
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-001658
满足:
Figure PCTCN2020070322-appb-001659
Figure PCTCN2020070322-appb-001660
其中
Figure PCTCN2020070322-appb-001661
Figure PCTCN2020070322-appb-001662
长的向量,且
Figure PCTCN2020070322-appb-001663
Figure PCTCN2020070322-appb-001664
其中
Figure PCTCN2020070322-appb-001665
Figure PCTCN2020070322-appb-001666
长的向量,且
Figure PCTCN2020070322-appb-001667
所述第十码字
Figure PCTCN2020070322-appb-001668
满足:
Figure PCTCN2020070322-appb-001669
Figure PCTCN2020070322-appb-001670
其中
Figure PCTCN2020070322-appb-001671
Figure PCTCN2020070322-appb-001672
长的向量,且
Figure PCTCN2020070322-appb-001673
Figure PCTCN2020070322-appb-001674
其中
Figure PCTCN2020070322-appb-001675
Figure PCTCN2020070322-appb-001676
长的向量,且
Figure PCTCN2020070322-appb-001677
所述第十一码字
Figure PCTCN2020070322-appb-001678
满足:
Figure PCTCN2020070322-appb-001679
Figure PCTCN2020070322-appb-001680
其中
Figure PCTCN2020070322-appb-001681
Figure PCTCN2020070322-appb-001682
长的向量,且
Figure PCTCN2020070322-appb-001683
Figure PCTCN2020070322-appb-001684
其中
Figure PCTCN2020070322-appb-001685
Figure PCTCN2020070322-appb-001686
长的向量,且
Figure PCTCN2020070322-appb-001687
或,
所述第十二码字
Figure PCTCN2020070322-appb-001688
满足:
Figure PCTCN2020070322-appb-001689
Figure PCTCN2020070322-appb-001690
其中
Figure PCTCN2020070322-appb-001691
Figure PCTCN2020070322-appb-001692
长的向量,且
Figure PCTCN2020070322-appb-001693
Figure PCTCN2020070322-appb-001694
其中
Figure PCTCN2020070322-appb-001695
Figure PCTCN2020070322-appb-001696
长的向量,且
Figure PCTCN2020070322-appb-001697
其中,
Figure PCTCN2020070322-appb-001698
为第十三码字,
Figure PCTCN2020070322-appb-001699
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-001700
是与
Figure PCTCN2020070322-appb-001701
相关的
Figure PCTCN2020070322-appb-001702
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001703
为第十五码字,
Figure PCTCN2020070322-appb-001704
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-001705
是与
Figure PCTCN2020070322-appb-001706
相关的
Figure PCTCN2020070322-appb-001707
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001708
为第十七码字,
Figure PCTCN2020070322-appb-001709
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-001710
是与
Figure PCTCN2020070322-appb-001711
相关的
Figure PCTCN2020070322-appb-001712
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001713
为第十九码字,
Figure PCTCN2020070322-appb-001714
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-001715
是与
Figure PCTCN2020070322-appb-001716
相关的
Figure PCTCN2020070322-appb-001717
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-001718
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
在一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
在一种可能的实施方式中,收发模块还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
在一种可能的实施方式中,所述至少两个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001719
Figure PCTCN2020070322-appb-001720
所述2 k个码字分别属于2 k个循环码的码字集合。
在一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
在一种可能的实施方式中,收发模块还用于:
接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
另外,图7所示的实施例提供的通信装置700还可以通过其他形式实现。例如该通信装置包括处理模块和收发模块。例如处理模块可通过处理器701实现,收发模块可通过收发器702实现。其中,处理模块可以用于执行图2所示的实施例中的S23,和/或用于支持本文所描述的技术的其他过程,例如可以执行前文中所述的网络设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发模块可以用于执行图2所示的实施例中的S22,和/或用于支持本文所描述的技术的其它过程,例如可以执行前文中所述的网络设备所执行的全部的收发过程或部分的收发过程。
例如,收发模块,用于接收第一信号,所述第一信号为前导信号或参考信号;
处理模块,用于获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
Figure PCTCN2020070322-appb-001721
或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},
Figure PCTCN2020070322-appb-001722
所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
Figure PCTCN2020070322-appb-001723
以及第二码字
Figure PCTCN2020070322-appb-001724
其中,所述序列{c(n)}中的元素满足:
Figure PCTCN2020070322-appb-001725
其中
Figure PCTCN2020070322-appb-001726
为M长的向量,且
Figure PCTCN2020070322-appb-001727
或,
Figure PCTCN2020070322-appb-001728
Figure PCTCN2020070322-appb-001729
或,
Figure PCTCN2020070322-appb-001730
Figure PCTCN2020070322-appb-001731
其中
Figure PCTCN2020070322-appb-001732
为M长的向量,且
Figure PCTCN2020070322-appb-001733
其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
Figure PCTCN2020070322-appb-001734
是与
Figure PCTCN2020070322-appb-001735
相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
Figure PCTCN2020070322-appb-001736
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,
当M为奇数时,
Figure PCTCN2020070322-appb-001737
Figure PCTCN2020070322-appb-001738
或者,
当M为偶数时,
Figure PCTCN2020070322-appb-001739
Figure PCTCN2020070322-appb-001740
Figure PCTCN2020070322-appb-001741
其中k′为M的最大奇数因子,
Figure PCTCN2020070322-appb-001742
在一种可能的实施方式中,所述
Figure PCTCN2020070322-appb-001743
属于第二十一循环码的码字集合。
在一种可能的实施方式中,处理模块用于通过如下方式获得所述第一信号的前导序列:
生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
Figure PCTCN2020070322-appb-001744
Figure PCTCN2020070322-appb-001745
所述2 k个码字分别属于2 k个循环码的码字集合;
根据所述至少一个M长的码字,获得所述前导序列。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001746
Figure PCTCN2020070322-appb-001747
其中
Figure PCTCN2020070322-appb-001748
满足:
Figure PCTCN2020070322-appb-001749
或,
Figure PCTCN2020070322-appb-001750
其中
Figure PCTCN2020070322-appb-001751
为M长的向量,且
Figure PCTCN2020070322-appb-001752
或,
Figure PCTCN2020070322-appb-001753
或,
Figure PCTCN2020070322-appb-001754
其中
Figure PCTCN2020070322-appb-001755
为M长的向量,且
Figure PCTCN2020070322-appb-001756
其中,
Figure PCTCN2020070322-appb-001757
为所述至少两个M长的码字中的第三码字,
Figure PCTCN2020070322-appb-001758
为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环 码的码字集合,
Figure PCTCN2020070322-appb-001759
是与
Figure PCTCN2020070322-appb-001760
相关的M长的向量,所述k大于或等于2。
在一种可能的实施方式中,
所述序列s的元素满足
Figure PCTCN2020070322-appb-001761
Figure PCTCN2020070322-appb-001762
其中:
Figure PCTCN2020070322-appb-001763
其中,
Figure PCTCN2020070322-appb-001764
Figure PCTCN2020070322-appb-001765
或,
Figure PCTCN2020070322-appb-001766
Figure PCTCN2020070322-appb-001767
或,
Figure PCTCN2020070322-appb-001768
其中
Figure PCTCN2020070322-appb-001769
是与
Figure PCTCN2020070322-appb-001770
相关的长度为2M的向量,其中,
Figure PCTCN2020070322-appb-001771
Figure PCTCN2020070322-appb-001772
或,
Figure PCTCN2020070322-appb-001773
Figure PCTCN2020070322-appb-001774
为所述至少两个M长的码字中的第五码字,
Figure PCTCN2020070322-appb-001775
为所述至少两个M长的码字中的第六码字,
Figure PCTCN2020070322-appb-001776
为所述至少两个M长的码字中的第七码字,
Figure PCTCN2020070322-appb-001777
为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
Figure PCTCN2020070322-appb-001778
均为M长的向量,
Figure PCTCN2020070322-appb-001779
是与
Figure PCTCN2020070322-appb-001780
相关的M长的向量,
Figure PCTCN2020070322-appb-001781
是与
Figure PCTCN2020070322-appb-001782
相关的M长的向量,所述k大于或等于3。
在一种可能的实施方式中,
所述第一码字
Figure PCTCN2020070322-appb-001783
满足:
Figure PCTCN2020070322-appb-001784
Figure PCTCN2020070322-appb-001785
其中
Figure PCTCN2020070322-appb-001786
Figure PCTCN2020070322-appb-001787
长的向量,且
Figure PCTCN2020070322-appb-001788
Figure PCTCN2020070322-appb-001789
Figure PCTCN2020070322-appb-001790
其中
Figure PCTCN2020070322-appb-001791
Figure PCTCN2020070322-appb-001792
长的向量,且
Figure PCTCN2020070322-appb-001793
和\或,
所述第二码字
Figure PCTCN2020070322-appb-001794
满足
Figure PCTCN2020070322-appb-001795
Figure PCTCN2020070322-appb-001796
其中
Figure PCTCN2020070322-appb-001797
Figure PCTCN2020070322-appb-001798
长的向量,且
Figure PCTCN2020070322-appb-001799
Figure PCTCN2020070322-appb-001800
Figure PCTCN2020070322-appb-001801
其中
Figure PCTCN2020070322-appb-001802
Figure PCTCN2020070322-appb-001803
长的向量,且
Figure PCTCN2020070322-appb-001804
其中,
Figure PCTCN2020070322-appb-001805
为第九码字,
Figure PCTCN2020070322-appb-001806
为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
Figure PCTCN2020070322-appb-001807
是与
Figure PCTCN2020070322-appb-001808
相关的
Figure PCTCN2020070322-appb-001809
长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
Figure PCTCN2020070322-appb-001810
为第十一码字,
Figure PCTCN2020070322-appb-001811
为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
Figure PCTCN2020070322-appb-001812
是与
Figure PCTCN2020070322-appb-001813
相关的
Figure PCTCN2020070322-appb-001814
长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
Figure PCTCN2020070322-appb-001815
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,码字所满足的条件包括如下的一项或如下多项的任意组合:
所述第九码字
Figure PCTCN2020070322-appb-001816
满足:
Figure PCTCN2020070322-appb-001817
Figure PCTCN2020070322-appb-001818
其中
Figure PCTCN2020070322-appb-001819
Figure PCTCN2020070322-appb-001820
长的向量,且
Figure PCTCN2020070322-appb-001821
Figure PCTCN2020070322-appb-001822
其中
Figure PCTCN2020070322-appb-001823
Figure PCTCN2020070322-appb-001824
长的向量,且
Figure PCTCN2020070322-appb-001825
所述第十码字
Figure PCTCN2020070322-appb-001826
满足:
Figure PCTCN2020070322-appb-001827
Figure PCTCN2020070322-appb-001828
其中
Figure PCTCN2020070322-appb-001829
Figure PCTCN2020070322-appb-001830
长的向量,且
Figure PCTCN2020070322-appb-001831
Figure PCTCN2020070322-appb-001832
其中
Figure PCTCN2020070322-appb-001833
Figure PCTCN2020070322-appb-001834
长的向量,且
Figure PCTCN2020070322-appb-001835
所述第十一码字
Figure PCTCN2020070322-appb-001836
满足:
Figure PCTCN2020070322-appb-001837
Figure PCTCN2020070322-appb-001838
其中
Figure PCTCN2020070322-appb-001839
Figure PCTCN2020070322-appb-001840
长的向量,且
Figure PCTCN2020070322-appb-001841
Figure PCTCN2020070322-appb-001842
其中
Figure PCTCN2020070322-appb-001843
Figure PCTCN2020070322-appb-001844
长的向量,且
Figure PCTCN2020070322-appb-001845
或,
所述第十二码字
Figure PCTCN2020070322-appb-001846
满足:
Figure PCTCN2020070322-appb-001847
Figure PCTCN2020070322-appb-001848
其中
Figure PCTCN2020070322-appb-001849
Figure PCTCN2020070322-appb-001850
长的向量,且
Figure PCTCN2020070322-appb-001851
Figure PCTCN2020070322-appb-001852
其中
Figure PCTCN2020070322-appb-001853
Figure PCTCN2020070322-appb-001854
长的向量,且
Figure PCTCN2020070322-appb-001855
其中,
Figure PCTCN2020070322-appb-001856
为第十三码字,
Figure PCTCN2020070322-appb-001857
为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
Figure PCTCN2020070322-appb-001858
是与
Figure PCTCN2020070322-appb-001859
相关的
Figure PCTCN2020070322-appb-001860
长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001861
为第十五码字,
Figure PCTCN2020070322-appb-001862
为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
Figure PCTCN2020070322-appb-001863
是与
Figure PCTCN2020070322-appb-001864
相关的
Figure PCTCN2020070322-appb-001865
长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001866
为第十七码字,
Figure PCTCN2020070322-appb-001867
为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
Figure PCTCN2020070322-appb-001868
是与
Figure PCTCN2020070322-appb-001869
相关的
Figure PCTCN2020070322-appb-001870
长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
Figure PCTCN2020070322-appb-001871
为第十九码字,
Figure PCTCN2020070322-appb-001872
为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
Figure PCTCN2020070322-appb-001873
是与
Figure PCTCN2020070322-appb-001874
相关的
Figure PCTCN2020070322-appb-001875
长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
Figure PCTCN2020070322-appb-001876
表示模N加运算,所述第一集合为{0,1,…,N-1}。
在一种可能的实施方式中,所述序列{c(n)}不是常数序列,其中,所述常数序列所包 括的每个元素均相同。
在一种可能的实施方式中,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
在一种可能的实施方式中,收发模块还用于:
接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
在一种可能的实施方式中,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
在一种可能的实施方式中,收发模块还用于:
发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
其中,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。
由于本申请实施例提供的通信装置600、通信装置700及通信装置800可用于执行图2所示的实施例所提供的方法,因此其所能获得的技术效果可参考上述方法实施例,在此不再赘述。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,数字通用光盘(digital versatile disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。
显然,本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样,倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。

Claims (52)

  1. 一种信号发送方法,其特征在于,所述信号为前导信号或参考信号,所述方法包括:
    根据长度为2 kM的序列s生成所述信号的前导序列,所述序列s中的元素
    Figure PCTCN2020070322-appb-100001
    或者
    Figure PCTCN2020070322-appb-100002
    δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
    Figure PCTCN2020070322-appb-100003
    表示下取整,
    Figure PCTCN2020070322-appb-100004
    所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
    Figure PCTCN2020070322-appb-100005
    以及第二码字
    Figure PCTCN2020070322-appb-100006
    其中,所述序列{c(n)}中的元素满足:
    Figure PCTCN2020070322-appb-100007
    或,
    Figure PCTCN2020070322-appb-100008
    其中
    Figure PCTCN2020070322-appb-100009
    为M长的向量,且
    Figure PCTCN2020070322-appb-100010
    或,
    Figure PCTCN2020070322-appb-100011
    Figure PCTCN2020070322-appb-100012
    或,
    Figure PCTCN2020070322-appb-100013
    Figure PCTCN2020070322-appb-100014
    其中
    Figure PCTCN2020070322-appb-100015
    为M长的向量,且
    Figure PCTCN2020070322-appb-100016
    其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
    Figure PCTCN2020070322-appb-100017
    是与
    Figure PCTCN2020070322-appb-100018
    相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
    Figure PCTCN2020070322-appb-100019
    表示模N加运算,所述第一集合为{0,1,…,N-1};
    发送所述前导序列。
  2. 根据权利要求1所述的方法,其特征在于,
    当M为奇数时,
    Figure PCTCN2020070322-appb-100020
    Figure PCTCN2020070322-appb-100021
    Figure PCTCN2020070322-appb-100022
    Figure PCTCN2020070322-appb-100023
    或者,
    当M为偶数时,
    Figure PCTCN2020070322-appb-100024
    Figure PCTCN2020070322-appb-100025
    Figure PCTCN2020070322-appb-100026
    Figure PCTCN2020070322-appb-100027
    Figure PCTCN2020070322-appb-100028
    其中k′为M的最大奇数因子,
    Figure PCTCN2020070322-appb-100029
  3. 根据权利要求1或2所述的方法,其特征在于,
    所述
    Figure PCTCN2020070322-appb-100030
    属于第二十一循环码的码字集合。
  4. 根据权利要求1~3任一项所述的方法,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100031
    Figure PCTCN2020070322-appb-100032
    其中
    Figure PCTCN2020070322-appb-100033
    满足:
    Figure PCTCN2020070322-appb-100034
    或,
    Figure PCTCN2020070322-appb-100035
    其中
    Figure PCTCN2020070322-appb-100036
    为M长的向量,且
    Figure PCTCN2020070322-appb-100037
    或,
    Figure PCTCN2020070322-appb-100038
    或,
    Figure PCTCN2020070322-appb-100039
    其中
    Figure PCTCN2020070322-appb-100040
    为M长的向量,且
    Figure PCTCN2020070322-appb-100041
    其中,
    Figure PCTCN2020070322-appb-100042
    为所述至少两个M长的码字中的第三码字,
    Figure PCTCN2020070322-appb-100043
    为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
    Figure PCTCN2020070322-appb-100044
    是与
    Figure PCTCN2020070322-appb-100045
    相关的M长的向量,所述k大于或等于2。
  5. 根据权利要求1~4任一项所述的方法,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100046
    Figure PCTCN2020070322-appb-100047
    其中:
    Figure PCTCN2020070322-appb-100048
    其中,
    Figure PCTCN2020070322-appb-100049
    Figure PCTCN2020070322-appb-100050
    或,
    Figure PCTCN2020070322-appb-100051
    Figure PCTCN2020070322-appb-100052
    或,
    Figure PCTCN2020070322-appb-100053
    其中
    Figure PCTCN2020070322-appb-100054
    是与
    Figure PCTCN2020070322-appb-100055
    相关的长度为2M的向量,其中,
    Figure PCTCN2020070322-appb-100056
    Figure PCTCN2020070322-appb-100057
    或,
    Figure PCTCN2020070322-appb-100058
    Figure PCTCN2020070322-appb-100059
    Figure PCTCN2020070322-appb-100060
    为所述至少两个M长的码字中的第五码字,
    Figure PCTCN2020070322-appb-100061
    为所述至少两个M长的码字中的第六码字,
    Figure PCTCN2020070322-appb-100062
    为所述至少两个M长的码字中的第七码字,
    Figure PCTCN2020070322-appb-100063
    为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
    Figure PCTCN2020070322-appb-100064
    均为M长的向量,
    Figure PCTCN2020070322-appb-100065
    是与
    Figure PCTCN2020070322-appb-100066
    相关的M长的向量,
    Figure PCTCN2020070322-appb-100067
    是与
    Figure PCTCN2020070322-appb-100068
    相关的M长的向量,所述k大于或等于3。
  6. 根据权利要求1~5任一项所述的方法,其特征在于,
    所述第一码字
    Figure PCTCN2020070322-appb-100069
    满足:
    Figure PCTCN2020070322-appb-100070
    Figure PCTCN2020070322-appb-100071
    其中
    Figure PCTCN2020070322-appb-100072
    Figure PCTCN2020070322-appb-100073
    长的向量,且
    Figure PCTCN2020070322-appb-100074
    Figure PCTCN2020070322-appb-100075
    或,
    Figure PCTCN2020070322-appb-100076
    Figure PCTCN2020070322-appb-100077
    其中
    Figure PCTCN2020070322-appb-100078
    Figure PCTCN2020070322-appb-100079
    长的向量,且
    Figure PCTCN2020070322-appb-100080
    和\或,
    所述第二码字
    Figure PCTCN2020070322-appb-100081
    满足
    Figure PCTCN2020070322-appb-100082
    Figure PCTCN2020070322-appb-100083
    其中
    Figure PCTCN2020070322-appb-100084
    Figure PCTCN2020070322-appb-100085
    长的向量,且
    Figure PCTCN2020070322-appb-100086
    Figure PCTCN2020070322-appb-100087
    或,
    Figure PCTCN2020070322-appb-100088
    Figure PCTCN2020070322-appb-100089
    其中
    Figure PCTCN2020070322-appb-100090
    Figure PCTCN2020070322-appb-100091
    长的向量,且
    Figure PCTCN2020070322-appb-100092
    其中,
    Figure PCTCN2020070322-appb-100093
    为第九码字,
    Figure PCTCN2020070322-appb-100094
    为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
    Figure PCTCN2020070322-appb-100095
    是与
    Figure PCTCN2020070322-appb-100096
    相关的
    Figure PCTCN2020070322-appb-100097
    长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集 合,
    Figure PCTCN2020070322-appb-100098
    为第十一码字,
    Figure PCTCN2020070322-appb-100099
    为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
    Figure PCTCN2020070322-appb-100100
    是与
    Figure PCTCN2020070322-appb-100101
    相关的
    Figure PCTCN2020070322-appb-100102
    长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
    Figure PCTCN2020070322-appb-100103
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  7. 根据权利要求6所述的方法,其特征在于,码字所满足的条件包括如下的一项或如下多项的任意组合:
    所述第九码字
    Figure PCTCN2020070322-appb-100104
    满足:
    Figure PCTCN2020070322-appb-100105
    Figure PCTCN2020070322-appb-100106
    其中
    Figure PCTCN2020070322-appb-100107
    Figure PCTCN2020070322-appb-100108
    长的向量,且
    Figure PCTCN2020070322-appb-100109
    或,
    Figure PCTCN2020070322-appb-100110
    Figure PCTCN2020070322-appb-100111
    其中
    Figure PCTCN2020070322-appb-100112
    Figure PCTCN2020070322-appb-100113
    长的向量,且
    Figure PCTCN2020070322-appb-100114
    所述第十码字
    Figure PCTCN2020070322-appb-100115
    满足:
    Figure PCTCN2020070322-appb-100116
    Figure PCTCN2020070322-appb-100117
    其中
    Figure PCTCN2020070322-appb-100118
    Figure PCTCN2020070322-appb-100119
    长的向量,且
    Figure PCTCN2020070322-appb-100120
    或,
    Figure PCTCN2020070322-appb-100121
    Figure PCTCN2020070322-appb-100122
    其中
    Figure PCTCN2020070322-appb-100123
    Figure PCTCN2020070322-appb-100124
    长的向量,且
    Figure PCTCN2020070322-appb-100125
    所述第十一码字
    Figure PCTCN2020070322-appb-100126
    满足:
    Figure PCTCN2020070322-appb-100127
    Figure PCTCN2020070322-appb-100128
    其中
    Figure PCTCN2020070322-appb-100129
    Figure PCTCN2020070322-appb-100130
    长的向量,且
    Figure PCTCN2020070322-appb-100131
    或,
    Figure PCTCN2020070322-appb-100132
    Figure PCTCN2020070322-appb-100133
    其中
    Figure PCTCN2020070322-appb-100134
    Figure PCTCN2020070322-appb-100135
    长的向量,且
    Figure PCTCN2020070322-appb-100136
    或,
    所述第十二码字
    Figure PCTCN2020070322-appb-100137
    满足:
    Figure PCTCN2020070322-appb-100138
    Figure PCTCN2020070322-appb-100139
    其中
    Figure PCTCN2020070322-appb-100140
    Figure PCTCN2020070322-appb-100141
    长的向量,且
    Figure PCTCN2020070322-appb-100142
    或,
    Figure PCTCN2020070322-appb-100143
    Figure PCTCN2020070322-appb-100144
    其中
    Figure PCTCN2020070322-appb-100145
    Figure PCTCN2020070322-appb-100146
    长的向量,且
    Figure PCTCN2020070322-appb-100147
    其中,
    Figure PCTCN2020070322-appb-100148
    为第十三码字,
    Figure PCTCN2020070322-appb-100149
    为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
    Figure PCTCN2020070322-appb-100150
    是与
    Figure PCTCN2020070322-appb-100151
    相关的
    Figure PCTCN2020070322-appb-100152
    长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100153
    为第十五码字,
    Figure PCTCN2020070322-appb-100154
    为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
    Figure PCTCN2020070322-appb-100155
    是与
    Figure PCTCN2020070322-appb-100156
    相关的
    Figure PCTCN2020070322-appb-100157
    长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100158
    为第十七码字,
    Figure PCTCN2020070322-appb-100159
    为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
    Figure PCTCN2020070322-appb-100160
    是与
    Figure PCTCN2020070322-appb-100161
    相关的
    Figure PCTCN2020070322-appb-100162
    长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100163
    为第十九码字,
    Figure PCTCN2020070322-appb-100164
    为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
    Figure PCTCN2020070322-appb-100165
    是与
    Figure PCTCN2020070322-appb-100166
    相关的
    Figure PCTCN2020070322-appb-100167
    长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
    Figure PCTCN2020070322-appb-100168
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  8. 根据权利要求1~7任一项所述的方法,其特征在于,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
  9. 根据权利要求1~8任一项所述的方法,其特征在于,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
  10. 根据权利要求1~9任一项所述的方法,其特征在于,所述方法还包括:
    接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
  11. 根据权利要求1~10任一项所述的方法,其特征在于,所述至少两个M长的码字 中包括2 k个码字,分别为
    Figure PCTCN2020070322-appb-100169
    所述2 k个码字分别属于2 k个循环码的码字集合。
  12. 根据权利要求11所述的方法,其特征在于,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
  13. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
  14. 一种信号接收方法,其特征在于,包括:
    接收第一信号,所述第一信号为前导信号或参考信号;
    获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
    Figure PCTCN2020070322-appb-100170
    或者s(n)=j ne j2π·c(n)/2,n属于{1,1,...,2 kM-1},
    Figure PCTCN2020070322-appb-100171
    所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
    Figure PCTCN2020070322-appb-100172
    以及第二码字
    Figure PCTCN2020070322-appb-100173
    其中,所述序列{c(n)}中的元素满足:
    Figure PCTCN2020070322-appb-100174
    或,
    Figure PCTCN2020070322-appb-100175
    其中
    Figure PCTCN2020070322-appb-100176
    为M长的向量,且
    Figure PCTCN2020070322-appb-100177
    或,
    Figure PCTCN2020070322-appb-100178
    Figure PCTCN2020070322-appb-100179
    或,
    Figure PCTCN2020070322-appb-100180
    Figure PCTCN2020070322-appb-100181
    其中
    Figure PCTCN2020070322-appb-100182
    为M长的向量,且
    Figure PCTCN2020070322-appb-100183
    其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
    Figure PCTCN2020070322-appb-100184
    是与
    Figure PCTCN2020070322-appb-100185
    相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
    Figure PCTCN2020070322-appb-100186
    表示模N加运算,所述第一集合为{0,1,...,N-1}。
  15. 根据权利要求14所述的方法,其特征在于,
    当M为奇数时,
    Figure PCTCN2020070322-appb-100187
    Figure PCTCN2020070322-appb-100188
    Figure PCTCN2020070322-appb-100189
    Figure PCTCN2020070322-appb-100190
    或者,
    当M为偶数时,
    Figure PCTCN2020070322-appb-100191
    Figure PCTCN2020070322-appb-100192
    Figure PCTCN2020070322-appb-100193
    Figure PCTCN2020070322-appb-100194
    Figure PCTCN2020070322-appb-100195
    其中k′为M的最大奇数因子,
    Figure PCTCN2020070322-appb-100196
  16. 根据权利要求14或15所述的方法,其特征在于,
    所述
    Figure PCTCN2020070322-appb-100197
    属于第二十一循环码的码字集合。
  17. 根据权利要求14~16任一项所述的方法,其特征在于,获得所述第一信号的前导序列,包括:
    生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
    Figure PCTCN2020070322-appb-100198
    Figure PCTCN2020070322-appb-100199
    所述2 k个码字分别属于2 k个循环码的码字集合;
    根据所述至少一个M长的码字,获得所述前导序列。
  18. 根据权利要求14~17任一项所述的方法,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100200
    Figure PCTCN2020070322-appb-100201
    其中
    Figure PCTCN2020070322-appb-100202
    满足:
    Figure PCTCN2020070322-appb-100203
    或,
    Figure PCTCN2020070322-appb-100204
    其中
    Figure PCTCN2020070322-appb-100205
    为M长的向量,且
    Figure PCTCN2020070322-appb-100206
    或,
    Figure PCTCN2020070322-appb-100207
    或,
    Figure PCTCN2020070322-appb-100208
    其中
    Figure PCTCN2020070322-appb-100209
    为M长的向量,且
    Figure PCTCN2020070322-appb-100210
    其中,
    Figure PCTCN2020070322-appb-100211
    为所述至少两个M长的码字中的第三码字,
    Figure PCTCN2020070322-appb-100212
    为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
    Figure PCTCN2020070322-appb-100213
    是与
    Figure PCTCN2020070322-appb-100214
    相关的M长的向量,所述k大于或等于2。
  19. 根据权利要求14~18任一项所述的方法,其特征在于,
    所述第一码字
    Figure PCTCN2020070322-appb-100215
    满足:
    Figure PCTCN2020070322-appb-100216
    Figure PCTCN2020070322-appb-100217
    其中
    Figure PCTCN2020070322-appb-100218
    Figure PCTCN2020070322-appb-100219
    长的向量,且
    Figure PCTCN2020070322-appb-100220
    Figure PCTCN2020070322-appb-100221
    或,
    Figure PCTCN2020070322-appb-100222
    Figure PCTCN2020070322-appb-100223
    其中
    Figure PCTCN2020070322-appb-100224
    Figure PCTCN2020070322-appb-100225
    长的向量,且
    Figure PCTCN2020070322-appb-100226
    和\或,
    所述第二码字
    Figure PCTCN2020070322-appb-100227
    满足
    Figure PCTCN2020070322-appb-100228
    Figure PCTCN2020070322-appb-100229
    其中
    Figure PCTCN2020070322-appb-100230
    Figure PCTCN2020070322-appb-100231
    长的向量,且
    Figure PCTCN2020070322-appb-100232
    Figure PCTCN2020070322-appb-100233
    或,
    Figure PCTCN2020070322-appb-100234
    Figure PCTCN2020070322-appb-100235
    其中
    Figure PCTCN2020070322-appb-100236
    Figure PCTCN2020070322-appb-100237
    长的向量,且
    Figure PCTCN2020070322-appb-100238
    其中,
    Figure PCTCN2020070322-appb-100239
    为第九码字,
    Figure PCTCN2020070322-appb-100240
    为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
    Figure PCTCN2020070322-appb-100241
    是与
    Figure PCTCN2020070322-appb-100242
    相关的
    Figure PCTCN2020070322-appb-100243
    长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
    Figure PCTCN2020070322-appb-100244
    为第十一码字,
    Figure PCTCN2020070322-appb-100245
    为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
    Figure PCTCN2020070322-appb-100246
    是与
    Figure PCTCN2020070322-appb-100247
    相关的
    Figure PCTCN2020070322-appb-100248
    长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
    Figure PCTCN2020070322-appb-100249
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  20. 根据权利要求19所述的方法,其特征在于,码字所满足的条件包括如下的一项或如下多项的任意组合:
    所述第九码字
    Figure PCTCN2020070322-appb-100250
    满足:
    Figure PCTCN2020070322-appb-100251
    Figure PCTCN2020070322-appb-100252
    其中
    Figure PCTCN2020070322-appb-100253
    Figure PCTCN2020070322-appb-100254
    长的向量,且
    Figure PCTCN2020070322-appb-100255
    或,
    Figure PCTCN2020070322-appb-100256
    Figure PCTCN2020070322-appb-100257
    Figure PCTCN2020070322-appb-100258
    Figure PCTCN2020070322-appb-100259
    长的向量,且
    Figure PCTCN2020070322-appb-100260
    所述第十码字
    Figure PCTCN2020070322-appb-100261
    满足:
    Figure PCTCN2020070322-appb-100262
    Figure PCTCN2020070322-appb-100263
    其中
    Figure PCTCN2020070322-appb-100264
    Figure PCTCN2020070322-appb-100265
    长的向量,且
    Figure PCTCN2020070322-appb-100266
    或,
    Figure PCTCN2020070322-appb-100267
    Figure PCTCN2020070322-appb-100268
    其中
    Figure PCTCN2020070322-appb-100269
    Figure PCTCN2020070322-appb-100270
    长的向量,且
    Figure PCTCN2020070322-appb-100271
    所述第十一码字
    Figure PCTCN2020070322-appb-100272
    满足:
    Figure PCTCN2020070322-appb-100273
    Figure PCTCN2020070322-appb-100274
    其中
    Figure PCTCN2020070322-appb-100275
    Figure PCTCN2020070322-appb-100276
    长的向量,且
    Figure PCTCN2020070322-appb-100277
    或,
    Figure PCTCN2020070322-appb-100278
    Figure PCTCN2020070322-appb-100279
    其中
    Figure PCTCN2020070322-appb-100280
    Figure PCTCN2020070322-appb-100281
    长的向量,且
    Figure PCTCN2020070322-appb-100282
    或,
    所述第十二码字
    Figure PCTCN2020070322-appb-100283
    满足:
    Figure PCTCN2020070322-appb-100284
    Figure PCTCN2020070322-appb-100285
    其中
    Figure PCTCN2020070322-appb-100286
    Figure PCTCN2020070322-appb-100287
    长的向量,且
    Figure PCTCN2020070322-appb-100288
    或,
    Figure PCTCN2020070322-appb-100289
    Figure PCTCN2020070322-appb-100290
    其中
    Figure PCTCN2020070322-appb-100291
    Figure PCTCN2020070322-appb-100292
    长的向量,且
    Figure PCTCN2020070322-appb-100293
    其中,
    Figure PCTCN2020070322-appb-100294
    为第十三码字,
    Figure PCTCN2020070322-appb-100295
    为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
    Figure PCTCN2020070322-appb-100296
    是与
    Figure PCTCN2020070322-appb-100297
    相关的
    Figure PCTCN2020070322-appb-100298
    长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100299
    为第十五码字,
    Figure PCTCN2020070322-appb-100300
    为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
    Figure PCTCN2020070322-appb-100301
    是与
    Figure PCTCN2020070322-appb-100302
    相关 的
    Figure PCTCN2020070322-appb-100303
    长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100304
    为第十七码字,
    Figure PCTCN2020070322-appb-100305
    为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
    Figure PCTCN2020070322-appb-100306
    是与
    Figure PCTCN2020070322-appb-100307
    相关的
    Figure PCTCN2020070322-appb-100308
    长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100309
    为第十九码字,
    Figure PCTCN2020070322-appb-100310
    为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
    Figure PCTCN2020070322-appb-100311
    是与
    Figure PCTCN2020070322-appb-100312
    相关的
    Figure PCTCN2020070322-appb-100313
    长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
    Figure PCTCN2020070322-appb-100314
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  21. 根据权利要求14~20任一项所述的方法,其特征在于,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
  22. 根据权利要求14~21任一项所述的方法,其特征在于,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
  23. 根据权利要求14~22任一项所述的方法,其特征在于,接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
  24. 根据权利要求14~23任一项所述的方法,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100315
    Figure PCTCN2020070322-appb-100316
    其中:
    Figure PCTCN2020070322-appb-100317
    其中,
    Figure PCTCN2020070322-appb-100318
    Figure PCTCN2020070322-appb-100319
    或,
    Figure PCTCN2020070322-appb-100320
    Figure PCTCN2020070322-appb-100321
    或,
    Figure PCTCN2020070322-appb-100322
    其中
    Figure PCTCN2020070322-appb-100323
    是与
    Figure PCTCN2020070322-appb-100324
    相关的长度为2M的向量,其中,
    Figure PCTCN2020070322-appb-100325
    Figure PCTCN2020070322-appb-100326
    或,
    Figure PCTCN2020070322-appb-100327
    Figure PCTCN2020070322-appb-100328
    Figure PCTCN2020070322-appb-100329
    为所述至少两个M长的码字中的第五码字,
    Figure PCTCN2020070322-appb-100330
    为所述至少两个M长的码字中的第六码字,
    Figure PCTCN2020070322-appb-100331
    为所述至少两个M长的码字中的第七码字,
    Figure PCTCN2020070322-appb-100332
    为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
    Figure PCTCN2020070322-appb-100333
    均为M长的向量,
    Figure PCTCN2020070322-appb-100334
    是与
    Figure PCTCN2020070322-appb-100335
    相关的M长的向量,
    Figure PCTCN2020070322-appb-100336
    是与
    Figure PCTCN2020070322-appb-100337
    相关的M长的向量,所述k大于或等于3。
  25. 根据权利要求14~24任一项所述的方法,其特征在于,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
  26. 根据权利要求14~25任一项所述的方法,其特征在于,所述方法还包括:
    发送指示信息,所述指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
  27. 一种通信装置,其特征在于,包括:
    处理模块,用于根据长度为2 kM的序列s生成信号的前导序列,所述信号为前导信号或参考信号,所述序列s中的元素
    Figure PCTCN2020070322-appb-100338
    或者
    Figure PCTCN2020070322-appb-100339
    δ=1或者δ=-1,ω=2或者ω=4,n属于{0,1,...,2 kM-1},
    Figure PCTCN2020070322-appb-100340
    表示下取整,
    Figure PCTCN2020070322-appb-100341
    所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
    Figure PCTCN2020070322-appb-100342
    以及第二码字
    Figure PCTCN2020070322-appb-100343
    其中,所述序列{c(n)}中的元素满足:
    Figure PCTCN2020070322-appb-100344
    或,
    Figure PCTCN2020070322-appb-100345
    其中
    Figure PCTCN2020070322-appb-100346
    为M长的向量,且
    Figure PCTCN2020070322-appb-100347
    或,
    Figure PCTCN2020070322-appb-100348
    Figure PCTCN2020070322-appb-100349
    或,
    Figure PCTCN2020070322-appb-100350
    Figure PCTCN2020070322-appb-100351
    其中
    Figure PCTCN2020070322-appb-100352
    为M长的向量,且
    Figure PCTCN2020070322-appb-100353
    其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码 字集合,M和k均为正整数,
    Figure PCTCN2020070322-appb-100354
    是与
    Figure PCTCN2020070322-appb-100355
    相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
    Figure PCTCN2020070322-appb-100356
    表示模N加运算,所述第一集合为{0,1,…,N-1};
    收发模块,用于发送所述前导序列。
  28. 根据权利要求27所述的通信装置,其特征在于,
    当M为奇数时,
    Figure PCTCN2020070322-appb-100357
    Figure PCTCN2020070322-appb-100358
    Figure PCTCN2020070322-appb-100359
    Figure PCTCN2020070322-appb-100360
    或者,
    当M为偶数时,
    Figure PCTCN2020070322-appb-100361
    Figure PCTCN2020070322-appb-100362
    Figure PCTCN2020070322-appb-100363
    Figure PCTCN2020070322-appb-100364
    Figure PCTCN2020070322-appb-100365
    其中k′为M的最大奇数因子,
    Figure PCTCN2020070322-appb-100366
  29. 根据权利要求27或28所述的通信装置,其特征在于,
    所述
    Figure PCTCN2020070322-appb-100367
    属于第二十一循环码的码字集合。
  30. 根据权利要求27~29任一项所述的通信装置,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100368
    Figure PCTCN2020070322-appb-100369
    其中
    Figure PCTCN2020070322-appb-100370
    满足:
    Figure PCTCN2020070322-appb-100371
    或,
    Figure PCTCN2020070322-appb-100372
    其中
    Figure PCTCN2020070322-appb-100373
    为M长的向量,且
    Figure PCTCN2020070322-appb-100374
    或,
    Figure PCTCN2020070322-appb-100375
    或,
    Figure PCTCN2020070322-appb-100376
    其中
    Figure PCTCN2020070322-appb-100377
    为M长的向量,且
    Figure PCTCN2020070322-appb-100378
    其中,
    Figure PCTCN2020070322-appb-100379
    为所述至少两个M长的码字中的第三码字,
    Figure PCTCN2020070322-appb-100380
    为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
    Figure PCTCN2020070322-appb-100381
    是与
    Figure PCTCN2020070322-appb-100382
    相关的M长的向量,所述k大于或等于2。
  31. 根据权利要求27~30任一项所述的通信装置,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100383
    Figure PCTCN2020070322-appb-100384
    其中:
    Figure PCTCN2020070322-appb-100385
    其中,
    Figure PCTCN2020070322-appb-100386
    Figure PCTCN2020070322-appb-100387
    或,
    Figure PCTCN2020070322-appb-100388
    Figure PCTCN2020070322-appb-100389
    或,
    Figure PCTCN2020070322-appb-100390
    其中
    Figure PCTCN2020070322-appb-100391
    是与
    Figure PCTCN2020070322-appb-100392
    相关的长度为2M的向量,其中,
    Figure PCTCN2020070322-appb-100393
    Figure PCTCN2020070322-appb-100394
    或,
    Figure PCTCN2020070322-appb-100395
    Figure PCTCN2020070322-appb-100396
    为所述至少两个M长的码字中的第五码字,
    Figure PCTCN2020070322-appb-100397
    为所述至少两个M长的码字中的第六码字,
    Figure PCTCN2020070322-appb-100398
    为所述至少两个M长的码字中的第七码字,
    Figure PCTCN2020070322-appb-100399
    为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
    Figure PCTCN2020070322-appb-100400
    均为M长的向量,
    Figure PCTCN2020070322-appb-100401
    是与
    Figure PCTCN2020070322-appb-100402
    相关的M长的向量,
    Figure PCTCN2020070322-appb-100403
    是与
    Figure PCTCN2020070322-appb-100404
    相关的M长的向量,所述k大于或等于3。
  32. 根据权利要求27~31任一项所述的通信装置,其特征在于,
    所述第一码字
    Figure PCTCN2020070322-appb-100405
    满足:
    Figure PCTCN2020070322-appb-100406
    Figure PCTCN2020070322-appb-100407
    其中
    Figure PCTCN2020070322-appb-100408
    Figure PCTCN2020070322-appb-100409
    长的向量,且
    Figure PCTCN2020070322-appb-100410
    Figure PCTCN2020070322-appb-100411
    或,
    Figure PCTCN2020070322-appb-100412
    Figure PCTCN2020070322-appb-100413
    其中
    Figure PCTCN2020070322-appb-100414
    Figure PCTCN2020070322-appb-100415
    长的向 量,且
    Figure PCTCN2020070322-appb-100416
    和\或,
    所述第二码字
    Figure PCTCN2020070322-appb-100417
    满足
    Figure PCTCN2020070322-appb-100418
    Figure PCTCN2020070322-appb-100419
    其中
    Figure PCTCN2020070322-appb-100420
    Figure PCTCN2020070322-appb-100421
    长的向量,且
    Figure PCTCN2020070322-appb-100422
    Figure PCTCN2020070322-appb-100423
    或,
    Figure PCTCN2020070322-appb-100424
    Figure PCTCN2020070322-appb-100425
    其中
    Figure PCTCN2020070322-appb-100426
    Figure PCTCN2020070322-appb-100427
    长的向量,且
    Figure PCTCN2020070322-appb-100428
    其中,
    Figure PCTCN2020070322-appb-100429
    为第九码字,
    Figure PCTCN2020070322-appb-100430
    为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
    Figure PCTCN2020070322-appb-100431
    是与
    Figure PCTCN2020070322-appb-100432
    相关的
    Figure PCTCN2020070322-appb-100433
    长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集合,
    Figure PCTCN2020070322-appb-100434
    为第十一码字,
    Figure PCTCN2020070322-appb-100435
    为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
    Figure PCTCN2020070322-appb-100436
    是与
    Figure PCTCN2020070322-appb-100437
    相关的
    Figure PCTCN2020070322-appb-100438
    长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
    Figure PCTCN2020070322-appb-100439
    表示模N加运算,所述第一集合为{1,1,…,N-1}。
  33. 根据权利要求32所述的通信装置,其特征在于,码字所满足的条件包括如下的一项或如下多项的任意组合:
    所述第九码字
    Figure PCTCN2020070322-appb-100440
    满足:
    Figure PCTCN2020070322-appb-100441
    Figure PCTCN2020070322-appb-100442
    其中
    Figure PCTCN2020070322-appb-100443
    Figure PCTCN2020070322-appb-100444
    长的向量,且
    Figure PCTCN2020070322-appb-100445
    或,
    Figure PCTCN2020070322-appb-100446
    Figure PCTCN2020070322-appb-100447
    其中
    Figure PCTCN2020070322-appb-100448
    Figure PCTCN2020070322-appb-100449
    长的向量,且
    Figure PCTCN2020070322-appb-100450
    所述第十码字
    Figure PCTCN2020070322-appb-100451
    满足:
    Figure PCTCN2020070322-appb-100452
    Figure PCTCN2020070322-appb-100453
    其中
    Figure PCTCN2020070322-appb-100454
    Figure PCTCN2020070322-appb-100455
    长的向量,且
    Figure PCTCN2020070322-appb-100456
    或,
    Figure PCTCN2020070322-appb-100457
    Figure PCTCN2020070322-appb-100458
    其中
    Figure PCTCN2020070322-appb-100459
    Figure PCTCN2020070322-appb-100460
    长的向量,且
    Figure PCTCN2020070322-appb-100461
    所述第十一码字
    Figure PCTCN2020070322-appb-100462
    满足:
    Figure PCTCN2020070322-appb-100463
    Figure PCTCN2020070322-appb-100464
    其中
    Figure PCTCN2020070322-appb-100465
    Figure PCTCN2020070322-appb-100466
    长的向量,且
    Figure PCTCN2020070322-appb-100467
    或,
    Figure PCTCN2020070322-appb-100468
    Figure PCTCN2020070322-appb-100469
    其中
    Figure PCTCN2020070322-appb-100470
    Figure PCTCN2020070322-appb-100471
    长的向量,且
    Figure PCTCN2020070322-appb-100472
    或,
    所述第十二码字
    Figure PCTCN2020070322-appb-100473
    满足:
    Figure PCTCN2020070322-appb-100474
    Figure PCTCN2020070322-appb-100475
    其中
    Figure PCTCN2020070322-appb-100476
    Figure PCTCN2020070322-appb-100477
    长的向量,且
    Figure PCTCN2020070322-appb-100478
    或,
    Figure PCTCN2020070322-appb-100479
    Figure PCTCN2020070322-appb-100480
    其中
    Figure PCTCN2020070322-appb-100481
    Figure PCTCN2020070322-appb-100482
    长的向量,且
    Figure PCTCN2020070322-appb-100483
    其中,
    Figure PCTCN2020070322-appb-100484
    为第十三码字,
    Figure PCTCN2020070322-appb-100485
    为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
    Figure PCTCN2020070322-appb-100486
    是与
    Figure PCTCN2020070322-appb-100487
    相关的
    Figure PCTCN2020070322-appb-100488
    长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100489
    为第十五码字,
    Figure PCTCN2020070322-appb-100490
    为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
    Figure PCTCN2020070322-appb-100491
    是与
    Figure PCTCN2020070322-appb-100492
    相关的
    Figure PCTCN2020070322-appb-100493
    长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100494
    为第十七码字,
    Figure PCTCN2020070322-appb-100495
    为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
    Figure PCTCN2020070322-appb-100496
    是与
    Figure PCTCN2020070322-appb-100497
    相关的
    Figure PCTCN2020070322-appb-100498
    长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100499
    为第十九码字,
    Figure PCTCN2020070322-appb-100500
    为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
    Figure PCTCN2020070322-appb-100501
    是与
    Figure PCTCN2020070322-appb-100502
    相关的
    Figure PCTCN2020070322-appb-100503
    长的向量,所述第十九码字包括的元素的取值属于第一集合,所述 第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
    Figure PCTCN2020070322-appb-100504
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  34. 根据权利要求27~33任一项所述的通信装置,其特征在于,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
  35. 根据权利要求27~34任一项所述的通信装置,其特征在于,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
  36. 根据权利要求27~35任一项所述的通信装置,其特征在于,所述收发模块还用于:
    接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
  37. 根据权利要求27~36任一项所述的通信装置,其特征在于,所述至少两个M长的码字中包括2 k个码字,分别为
    Figure PCTCN2020070322-appb-100505
    所述2 k个码字分别属于2 k个循环码的码字集合。
  38. 根据权利要求37所述的通信装置,其特征在于,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
  39. 根据权利要求38所述的通信装置,其特征在于,所述收发模块还用于:
    接收来自网络设备的第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
  40. 一种通信装置,其特征在于,包括:
    收发模块,用于接收第一信号,所述第一信号为前导信号或参考信号;
    处理模块,用于获得所述第一信号的前导序列,其中,所述前导序列承载序列s,所述序列s中的元素
    Figure PCTCN2020070322-appb-100506
    或者s(n)=j ne j2π·c(n)/2,n属于{0,1,...,2 kM-1},
    Figure PCTCN2020070322-appb-100507
    所述序列{c(n)}是通过至少两个M长的码字得到的,所述至少两个M长的码字包括第一码字
    Figure PCTCN2020070322-appb-100508
    以及第二码字
    Figure PCTCN2020070322-appb-100509
    其中,所述序列{c(n)}中的元素满足:
    Figure PCTCN2020070322-appb-100510
    或,
    Figure PCTCN2020070322-appb-100511
    其中
    Figure PCTCN2020070322-appb-100512
    为M长的向量,且
    Figure PCTCN2020070322-appb-100513
    或,
    Figure PCTCN2020070322-appb-100514
    Figure PCTCN2020070322-appb-100515
    或,
    Figure PCTCN2020070322-appb-100516
    Figure PCTCN2020070322-appb-100517
    其中
    Figure PCTCN2020070322-appb-100518
    为M长的向量,且
    Figure PCTCN2020070322-appb-100519
    其中,所述第一码字属于第一循环码的码字集合,所述第二码字属于第二循环码的码字集合,M和k均为正整数,
    Figure PCTCN2020070322-appb-100520
    是与
    Figure PCTCN2020070322-appb-100521
    相关的M长的向量,所述第一码字包括的元素的取值属于第一集合,所述第二码字包括的元素的取值属于所述第一集合,其中N为大于1的整数,
    Figure PCTCN2020070322-appb-100522
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  41. 根据权利要求40所述的通信装置,其特征在于,
    当M为奇数时,
    Figure PCTCN2020070322-appb-100523
    Figure PCTCN2020070322-appb-100524
    Figure PCTCN2020070322-appb-100525
    Figure PCTCN2020070322-appb-100526
    或者,
    当M为偶数时,
    Figure PCTCN2020070322-appb-100527
    Figure PCTCN2020070322-appb-100528
    Figure PCTCN2020070322-appb-100529
    Figure PCTCN2020070322-appb-100530
    Figure PCTCN2020070322-appb-100531
    其中k′为M的最大奇数因子,
    Figure PCTCN2020070322-appb-100532
  42. 根据权利要求40或41所述的通信装置,其特征在于,
    所述
    Figure PCTCN2020070322-appb-100533
    属于第二十一循环码的码字集合。
  43. 根据权利要求40~42任一项所述的通信装置,其特征在于,所述处理模块用于通过如下方式获得所述第一信号的前导序列:
    生成至少一个M长的码字,所述至少一个M长的码字中包括2 k个码字,分别为
    Figure PCTCN2020070322-appb-100534
    Figure PCTCN2020070322-appb-100535
    所述2 k个码字分别属于2 k个循环码的码字集合;
    根据所述至少一个M长的码字,获得所述前导序列。
  44. 根据权利要求40~43任一项所述的通信装置,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100536
    Figure PCTCN2020070322-appb-100537
    其中
    Figure PCTCN2020070322-appb-100538
    满足:
    Figure PCTCN2020070322-appb-100539
    或,
    Figure PCTCN2020070322-appb-100540
    其中
    Figure PCTCN2020070322-appb-100541
    为M长的向量,且
    Figure PCTCN2020070322-appb-100542
    或,
    Figure PCTCN2020070322-appb-100543
    或,
    Figure PCTCN2020070322-appb-100544
    其中
    Figure PCTCN2020070322-appb-100545
    为M长的向量,且
    Figure PCTCN2020070322-appb-100546
    其中,
    Figure PCTCN2020070322-appb-100547
    为所述至少两个M长的码字中的第三码字,
    Figure PCTCN2020070322-appb-100548
    为所述至少两个M长的码字中的第四码字,所述第三码字属于第三循环码的码字集合,所述第四码字属于第四循环码的码字集合,
    Figure PCTCN2020070322-appb-100549
    是与
    Figure PCTCN2020070322-appb-100550
    相关的M长的向量,所述k大于或等于2。
  45. 根据权利要求40~44任一项所述的通信装置,其特征在于,
    所述第一码字
    Figure PCTCN2020070322-appb-100551
    满足:
    Figure PCTCN2020070322-appb-100552
    Figure PCTCN2020070322-appb-100553
    其中
    Figure PCTCN2020070322-appb-100554
    Figure PCTCN2020070322-appb-100555
    长的向量,且
    Figure PCTCN2020070322-appb-100556
    Figure PCTCN2020070322-appb-100557
    或,
    Figure PCTCN2020070322-appb-100558
    Figure PCTCN2020070322-appb-100559
    其中
    Figure PCTCN2020070322-appb-100560
    Figure PCTCN2020070322-appb-100561
    长的向量,且
    Figure PCTCN2020070322-appb-100562
    和\或,
    所述第二码字
    Figure PCTCN2020070322-appb-100563
    满足
    Figure PCTCN2020070322-appb-100564
    Figure PCTCN2020070322-appb-100565
    其中
    Figure PCTCN2020070322-appb-100566
    Figure PCTCN2020070322-appb-100567
    长的向量,且
    Figure PCTCN2020070322-appb-100568
    Figure PCTCN2020070322-appb-100569
    或,
    Figure PCTCN2020070322-appb-100570
    Figure PCTCN2020070322-appb-100571
    其中
    Figure PCTCN2020070322-appb-100572
    Figure PCTCN2020070322-appb-100573
    长的向量,且
    Figure PCTCN2020070322-appb-100574
    其中,
    Figure PCTCN2020070322-appb-100575
    为第九码字,
    Figure PCTCN2020070322-appb-100576
    为第十码字,所述第九码字属于第九循环码的码字集合,所述第十码字属于第十循环码的码字集合,
    Figure PCTCN2020070322-appb-100577
    是与
    Figure PCTCN2020070322-appb-100578
    相关的
    Figure PCTCN2020070322-appb-100579
    长的向量,所述第九码字包括的元素的取值属于第一集合,所述第十码字包括的元素的取值属于所述第一集 合,
    Figure PCTCN2020070322-appb-100580
    为第十一码字,
    Figure PCTCN2020070322-appb-100581
    为第十二码字,所述第十一码字属于第十一循环码的码字集合,所述第十二码字属于第十二循环码的码字集合,
    Figure PCTCN2020070322-appb-100582
    是与
    Figure PCTCN2020070322-appb-100583
    相关的
    Figure PCTCN2020070322-appb-100584
    长的向量,所述第十一码字包括的元素的取值属于第一集合,所述第十二码字包括的元素的取值属于所述第一集合,N为大于1的整数,
    Figure PCTCN2020070322-appb-100585
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  46. 根据权利要求45所述的通信装置,其特征在于,码字所满足的条件包括如下的一项或如下多项的任意组合:
    所述第九码字
    Figure PCTCN2020070322-appb-100586
    满足:
    Figure PCTCN2020070322-appb-100587
    Figure PCTCN2020070322-appb-100588
    其中
    Figure PCTCN2020070322-appb-100589
    Figure PCTCN2020070322-appb-100590
    长的向量,且
    Figure PCTCN2020070322-appb-100591
    或,
    Figure PCTCN2020070322-appb-100592
    Figure PCTCN2020070322-appb-100593
    其中
    Figure PCTCN2020070322-appb-100594
    Figure PCTCN2020070322-appb-100595
    长的向量,且
    Figure PCTCN2020070322-appb-100596
    所述第十码字
    Figure PCTCN2020070322-appb-100597
    满足:
    Figure PCTCN2020070322-appb-100598
    Figure PCTCN2020070322-appb-100599
    其中
    Figure PCTCN2020070322-appb-100600
    Figure PCTCN2020070322-appb-100601
    长的向量,且
    Figure PCTCN2020070322-appb-100602
    或,
    Figure PCTCN2020070322-appb-100603
    Figure PCTCN2020070322-appb-100604
    其中
    Figure PCTCN2020070322-appb-100605
    Figure PCTCN2020070322-appb-100606
    长的向量,且
    Figure PCTCN2020070322-appb-100607
    所述第十一码字
    Figure PCTCN2020070322-appb-100608
    满足:
    Figure PCTCN2020070322-appb-100609
    Figure PCTCN2020070322-appb-100610
    其中
    Figure PCTCN2020070322-appb-100611
    Figure PCTCN2020070322-appb-100612
    长的向量,且
    Figure PCTCN2020070322-appb-100613
    或,
    Figure PCTCN2020070322-appb-100614
    Figure PCTCN2020070322-appb-100615
    其中
    Figure PCTCN2020070322-appb-100616
    Figure PCTCN2020070322-appb-100617
    长的向量,且
    Figure PCTCN2020070322-appb-100618
    或,
    所述第十二码字
    Figure PCTCN2020070322-appb-100619
    满足:
    Figure PCTCN2020070322-appb-100620
    Figure PCTCN2020070322-appb-100621
    其中
    Figure PCTCN2020070322-appb-100622
    Figure PCTCN2020070322-appb-100623
    长的向量,且
    Figure PCTCN2020070322-appb-100624
    或,
    Figure PCTCN2020070322-appb-100625
    Figure PCTCN2020070322-appb-100626
    其中
    Figure PCTCN2020070322-appb-100627
    Figure PCTCN2020070322-appb-100628
    长的向量,且
    Figure PCTCN2020070322-appb-100629
    其中,
    Figure PCTCN2020070322-appb-100630
    为第十三码字,
    Figure PCTCN2020070322-appb-100631
    为第十四码字,所述第十三码字属于第十三循环码的码字集合,所述第十四码字属于第十四循环码的码字集合,
    Figure PCTCN2020070322-appb-100632
    是与
    Figure PCTCN2020070322-appb-100633
    相关的
    Figure PCTCN2020070322-appb-100634
    长的向量,所述第十三码字包括的元素的取值属于第一集合,所述第十四码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100635
    为第十五码字,
    Figure PCTCN2020070322-appb-100636
    为第十六码字,所述第十五码字属于第十五循环码的码字集合,所述第十六码字属于第十六循环码的码字集合,
    Figure PCTCN2020070322-appb-100637
    是与
    Figure PCTCN2020070322-appb-100638
    相关的
    Figure PCTCN2020070322-appb-100639
    长的向量,所述第十五码字包括的元素的取值属于第一集合,所述第十六码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100640
    为第十七码字,
    Figure PCTCN2020070322-appb-100641
    为第十八码字,所述第十七码字属于第十七循环码的码字集合,所述第十八码字属于第十八循环码的码字集合,
    Figure PCTCN2020070322-appb-100642
    是与
    Figure PCTCN2020070322-appb-100643
    相关的
    Figure PCTCN2020070322-appb-100644
    长的向量,所述第十七码字包括的元素的取值属于第一集合,所述第十八码字包括的元素的取值属于所述第一集合;
    Figure PCTCN2020070322-appb-100645
    为第十九码字,
    Figure PCTCN2020070322-appb-100646
    为第二十码字,所述第十九码字属于第十九循环码的码字集合,所述第二十码字属于第二十循环码的码字集合,
    Figure PCTCN2020070322-appb-100647
    是与
    Figure PCTCN2020070322-appb-100648
    相关的
    Figure PCTCN2020070322-appb-100649
    长的向量,所述第十九码字包括的元素的取值属于第一集合,所述第二十码字包括的元素的取值属于所述第一集合;N为大于1的整数,
    Figure PCTCN2020070322-appb-100650
    表示模N加运算,所述第一集合为{0,1,…,N-1}。
  47. 根据权利要求40~46任一项所述的通信装置,其特征在于,所述序列{c(n)}不是常数序列,其中,所述常数序列所包括的每个元素均相同。
  48. 根据权利要求40~47任一项所述的通信装置,其特征在于,所述序列{s(n)}所组成的序列集合中任意两个序列{s 1(n)}和{s 2(n)}满足:不存在复数γ使得s 1(n)=γs 2(n),n=0,1,2,...,2M-1。
  49. 根据权利要求40~48任一项所述的通信装置,其特征在于,所述收发模块还用于:
    接收来自网络设备的第一指示信息,所述第一指示信息用于指示序列{c(n)}的循环移位值,所述循环移位值属于第三集合,所述第三集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模2M后大于或等于L,L为大于1的整数。
  50. 根据权利要求40~49任一项所述的通信装置,其特征在于,
    所述序列s的元素满足
    Figure PCTCN2020070322-appb-100651
    Figure PCTCN2020070322-appb-100652
    其中:
    Figure PCTCN2020070322-appb-100653
    其中,
    Figure PCTCN2020070322-appb-100654
    Figure PCTCN2020070322-appb-100655
    或,
    Figure PCTCN2020070322-appb-100656
    Figure PCTCN2020070322-appb-100657
    或,
    Figure PCTCN2020070322-appb-100658
    其中
    Figure PCTCN2020070322-appb-100659
    是与
    Figure PCTCN2020070322-appb-100660
    相关的长度为2M的向量,其中,
    Figure PCTCN2020070322-appb-100661
    Figure PCTCN2020070322-appb-100662
    或,
    Figure PCTCN2020070322-appb-100663
    Figure PCTCN2020070322-appb-100664
    Figure PCTCN2020070322-appb-100665
    为所述至少两个M长的码字中的第五码字,
    Figure PCTCN2020070322-appb-100666
    为所述至少两个M长的码字中的第六码字,
    Figure PCTCN2020070322-appb-100667
    为所述至少两个M长的码字中的第七码字,
    Figure PCTCN2020070322-appb-100668
    为所述至少两个M长的码字中的第八码字,所述第五码字属于第五循环码的码字集合,所述第六码字属于第六循环码的码字集合,所述第七码字属于第七循环码的码字集合,所述第八码字属于第八循环码的码字集合,其中
    Figure PCTCN2020070322-appb-100669
    均为M长的向量,
    Figure PCTCN2020070322-appb-100670
    是与
    Figure PCTCN2020070322-appb-100671
    相关的M长的向量,
    Figure PCTCN2020070322-appb-100672
    是与
    Figure PCTCN2020070322-appb-100673
    相关的M长的向量,所述k大于或等于3。
  51. 根据权利要求40~50任一项所述的通信装置,其特征在于,所述至少两个M长的码字的码字个数为2 k,所述第2 k个循环码是移位寄存器序列。
  52. 根据权利要求40~51任一项所述的通信装置,其特征在于,所述收发模块还用于:
    发送第二指示信息,所述第二指示信息用于指示所述至少两个M长的码字中第2 k个码字的循环移位值,所述循环移位值属于第二集合,所述第二集合包括至少两个元素,所述至少两个元素中的任意两个元素之差模M后大于或等于L,L为大于1的整数。
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