WO2021083021A1 - 公共参考信号的序列映射方法及装置、存储介质、终端 - Google Patents

公共参考信号的序列映射方法及装置、存储介质、终端 Download PDF

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Publication number
WO2021083021A1
WO2021083021A1 PCT/CN2020/122687 CN2020122687W WO2021083021A1 WO 2021083021 A1 WO2021083021 A1 WO 2021083021A1 CN 2020122687 W CN2020122687 W CN 2020122687W WO 2021083021 A1 WO2021083021 A1 WO 2021083021A1
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WIPO (PCT)
Prior art keywords
sequence
resource block
reference signal
ssb
common reference
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PCT/CN2020/122687
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English (en)
French (fr)
Inventor
王化磊
周欢
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北京紫光展锐通信技术有限公司
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Priority to US17/773,107 priority Critical patent/US20220385426A1/en
Publication of WO2021083021A1 publication Critical patent/WO2021083021A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communication technology, and in particular to a method and device for sequence mapping of a common reference signal, a storage medium, and a terminal.
  • the reference point of sequence mapping In the downlink system of the NR system, for the demodulation reference signal (De-Modulation Reference Signal, DMRS), during sequence mapping, it is necessary to determine the reference point of sequence mapping to determine the frequency domain start point of sequence mapping, and then use the sequence from The frequency domain starting point maps the demodulation reference signal to obtain the demodulation reference signal.
  • the reference point may be used to indicate the starting point of the sequence in the frequency domain mapping, and may also be used to indicate the time domain sampling point position of the sequence before transform precoding.
  • the technical problem solved by the present invention is to provide a common reference signal sequence mapping method and device, storage medium, and terminal, which can implement mapping using the sequence of the common reference signal to obtain data of the common reference signal.
  • an embodiment of the present invention provides a common reference signal sequence mapping method, including the following steps: determining a reference point for sequence mapping of the common reference signal; using the common reference signal according to the reference point To obtain the data of the common reference signal.
  • determining the reference point of the sequence mapping of the common reference signal includes: determining a time slot with an SSB (SS/PBCH block); in the time slot with the SSB, according to the resource block where the SSB is located, Determine the reference point of the sequence mapping of the common reference signal.
  • SS/PBCH block SS/PBCH block
  • the sequence of the common reference signal includes a first sequence for demodulating the PBCH; according to the resource block where the SSB is located, determining the reference point of the sequence mapping of the common reference signal includes: determining where the SSB is located The subcarrier 0 of the resource block with the smallest number in the resource blocks is the reference point of the sequence mapping for the first sequence used to demodulate the PBCH.
  • the sequence of the common reference signal includes a second sequence used to demodulate the CORESET 0 (Control resource set 0) and/or the PDSCH scheduled by the CORESET 0; determine the second sequence according to the resource block where the SSB is located.
  • CORESET 0 can refer to the control resource set 0 in the frequency domain, or it can refer to the control resource set 0 in the time domain. If CORESET 0 refers to the control resource set 0 in the time domain, then it can be assumed to be in the time domain.
  • the resource and the frequency domain have a certain correspondence, such as a one-to-one correspondence.
  • the sequence of the common reference signal includes a second sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0; the sequence of the common reference signal is determined according to the resource block where the SSB is located
  • the reference points of the mapping include: judging whether the resource block offset between the CORESET 0 and the resource block where the SSB is> 0; if the resource block offset between the CORESET 0 and the resource block where the SSB is> 0, the resource block where the SSB is located Block, the subcarrier 0 of the resource block with the smallest number of the resource block where the SSB is located is determined as the reference point for sequence mapping of the second sequence; if the CORESET 0 is offset from the resource block of the resource block where the SSB is> 0, for resource blocks other than the resource block where the SSB is located, the subcarrier 0 of the resource block with the smallest number of the resource block where the CORESET 0 is located is determined as the reference point of the sequence
  • the second sequence is obtained by cyclic shifting the original sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0.
  • the sequence of the common reference signal includes a second sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0; the sequence of the common reference signal is determined according to the resource block where the SSB is located
  • the reference points of the mapping include: judging whether the CORESET 0 and the resource block offset of the resource block where the SSB is located> 0; if the CORESET 0 and the resource block offset of the resource block where the SSB is located> 0, determine the CORESET The subcarrier 0 of the resource block with the smallest number of the resource block where 0 is located; determine the original sequence used to demodulate CORESET 0 and/or the PDSCH scheduled by the CORESET 0; perform cyclic shift on the original sequence to obtain the The second sequence; subcarrier 0 of the resource block with the smallest number of the resource block where the CORESET 0 is located is used as a reference point for sequence mapping of the second sequence.
  • the sequence of the common reference signal includes a first sequence for demodulating PBCH, a second sequence for demodulating CORESET 0 and/or a PDSCH scheduled by CORESET 0; according to the resource where the SSB is located Block, determining the reference point of the sequence mapping of the common reference signal includes: determining the offset between the SSB and the reference point; determining the reference point of the first sequence according to the resource block where the SSB is located and the offset Point and the reference point of the second sequence.
  • determining the reference point of the sequence mapping of the common reference signal further includes: determining a time slot without SSB; in the time slot without SSB, determining subcarrier 0 of common resource block 0 as the common reference Reference point for sequence mapping of signals.
  • determining the reference point of the sequence mapping of the common reference signal further includes: in a time slot with an SSB, determining the frequency domain resource of the SSB as the SSB frequency domain resource; when the SSB is not available In a slot or an SSB time slot, determine that the frequency domain resource of the first signal to be demodulated is located in the SSB frequency domain resource; determine that the subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is used for demodulation
  • the sequence of the second signal to be demodulated is obtained by cyclically shifting the original sequence used to demodulate the second signal to be demodulated.
  • determining the reference point of the sequence mapping of the common reference signal further includes: determining the subcarrier of the common resource block 0 for other signals except the first signal to be demodulated and the second signal to be demodulated 0 is a reference point for sequence mapping of the common reference signal.
  • the sequence mapping method of the common reference signal further includes: determining a downlink shared channel and a control channel that carry signals other than the common reference signal; determining to demodulate the downlink shared channel,
  • the reference point of the control channel is subcarrier 0 of the resource block with the smallest number of the resource block where CORESET 0 is located, or subcarrier 0 of common resource block 0.
  • an embodiment of the present invention provides a common reference signal sequence mapping device including: a reference point determination module adapted to determine a reference point for sequence mapping of the common reference signal; and a mapping module adapted to determine a reference point for sequence mapping of the common reference signal;
  • the reference point uses the sequence of the common reference signal to map the common reference signal to obtain the data of the common reference signal.
  • an embodiment of the present invention provides a storage medium having computer instructions stored thereon, and the computer instructions execute the steps of the sequence mapping method of the public reference signal when the computer instructions are run.
  • an embodiment of the present invention provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the computer instructions when the computer instructions are run.
  • the steps of the sequence mapping method of the above-mentioned common reference signal are provided.
  • the reference point of the sequence mapping of the common reference signal is determined; according to the reference point, the sequence of the common reference signal is used for mapping to obtain the data of the common reference signal.
  • the sequence of the common reference signal can be used for mapping to obtain the data of the common reference signal and fill the gap in the prior art, thereby It can demodulate the downlink shared channel, control channel, and broadcast channel.
  • the reference point of the sequence mapping of the common reference signal can be determined based on the existing SSB. Parameters, determine the reference point, and then realize the mapping of the common reference signal to obtain the data of the common reference signal.
  • subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is the reference point for sequence mapping of the first sequence used to demodulate the PBCH.
  • CORESET0 and The symbol of the PDSCH scheduled by CORESET 0 can be applied to all symbols of the common reference signal by adopting the scheme of the embodiment of the present invention, so that the downlink shared channel, control channel, and broadcast channel can be demodulated.
  • subcarrier 0 of common resource block 0 is the reference point for sequence mapping of the common reference signal, and it can also be determined according to whether the frequency domain resource of the signal to be demodulated is located in the SSB frequency.
  • Domain resources and/or CORESET 0 frequency domain resources respectively determine the reference point of sequence mapping.
  • FIG. 1 is a flowchart of a method for sequence mapping of a common reference signal in an embodiment of the present invention
  • FIG. 2 is a flowchart of a specific implementation of step S11 in FIG. 1;
  • FIG. 3 is a flowchart of a specific implementation of step S22 in FIG. 2;
  • FIG. 4 is a flowchart of another specific implementation manner of step S22 in FIG. 2;
  • Figure 5 is a schematic diagram of a time-frequency resource in an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another time-frequency resource in an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a sequence mapping apparatus for a common reference signal in an embodiment of the present invention.
  • the reference point is subcarrier 0 of the resource block with the smallest number in the resource block where CORESET 0 is located; in other cases, the reference point is subcarrier 0 of common resource block 0 (Common resource block 0).
  • the reference point is the subcarrier 0 of the resource block with the smallest number in the resource block where the CORESET is located. ; In other cases, the reference point is subcarrier 0 of common resource block 0.
  • PBCH Physical Broadcast Channel
  • the inventor of the present invention has discovered through research that, for public reference signals, no specific method for determining sequence mapping reference points is currently provided.
  • the reference point of the sequence mapping of the common reference signal is determined; according to the reference point, the sequence of the common reference signal is used for mapping to obtain the data of the common reference signal.
  • the sequence of the common reference signal can be used for mapping to obtain the data of the common reference signal and fill the gap in the prior art, thereby It can demodulate the downlink shared channel, control channel, and broadcast channel.
  • FIG. 1 is a flowchart of a method for sequence mapping of a common reference signal in an embodiment of the present invention.
  • the sequence mapping method may include step S11 to step S12:
  • Step S11 Determine the reference point of the sequence mapping of the common reference signal
  • Step S12 According to the reference point, the sequence of the common reference signal is used for mapping to obtain the data of the common reference signal.
  • step S11 since the reference point is determined for the common reference signal, compared with the DMRS in the prior art, it is more divided from the time domain resources, and for the signals carried on different time domain resources, Use different methods to determine the reference point.
  • FIG. 2 is a flowchart of a specific implementation of step S11 in FIG. 1.
  • the step of determining the reference point of the sequence mapping of the common reference signal may include step S21 to step S22, and may also include step S23 to step S24. Each step is described below.
  • step S21 it is determined that there is a slot of SSB.
  • step S22 in a time slot with the SSB, a reference point for sequence mapping of the common reference signal is determined according to the resource block where the SSB is located.
  • the time slot with the SSB can be determined, and then in the time slot with the SSB, the reference point of the sequence mapping of the common reference signal can be determined according to the resource block where the SSB is located. Based on the existing parameter of SSB, the reference point is determined, and then the common reference signal is mapped to obtain the data of the common reference signal.
  • the step of determining the reference point of the sequence mapping of the common reference signal may include determining that subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is the use The reference point of sequence mapping for demodulating the first sequence of the PBCH.
  • the sequence of the common reference signal includes the first sequence for demodulating the PBCH.
  • the subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is determined as the reference point for sequence mapping of the first sequence used to demodulate the PBCH, which is compared with
  • the existing protocol scheme is only applicable to the symbols of the PDSCH scheduled by CORESET0 and CORESET0.
  • the scheme of the embodiment of the present invention can be applied to the common reference signal, so that the downlink shared channel, control channel, and broadcast channel can be demodulated.
  • the reference point may be determined according to the resource block offset between the CORESET 0 and the resource block where the SSB is located.
  • the offset is defined as the minimum RB index of the CORESET associated with the Type0-PDCCH CSS set.
  • Fig. 3 is a flowchart of a specific implementation of step S22 in Fig. 2.
  • the step of determining the reference point of the sequence mapping of the common reference signal may include step S31 to step S32, and may also include step S33 to step S35. Each step is described below.
  • the sequence of the common reference signal includes a second sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0.
  • subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is determined as a reference point, which may be applicable to common reference signals, This enables demodulation of downlink shared channels, control channels, and broadcast channels.
  • step S33 it is determined whether the resource block offset between the CORESET 0 and the resource block where the SSB is located>0.
  • step S34 if the resource block offset between CORESET 0 and the resource block where the SSB is located> 0, in the resource block where the SSB is located, it is determined that the subcarrier 0 of the resource block with the smallest number of the resource block where the SSB is located is The reference point of the sequence mapping of the second sequence.
  • step S35 if the resource block offset between the CORESET 0 and the resource block where the SSB is located> 0, for resource blocks other than the resource block where the SSB is located, determine the smallest number of the resource block where the CORESET 0 is located.
  • Subcarrier 0 of the resource block is a reference point for sequence mapping of the second sequence. It should be pointed out that the resource blocks other than the resource block where the SSB is located are resource blocks in the time slot where the SSB is located.
  • the sequence of the common reference signal includes a second sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0.
  • the subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located can be determined as a reference Point
  • the subcarrier 0 of the resource block with the smallest number of the resource block where the CORESET 0 is located can be determined, so that it can be applied to common reference signals, and can be used for downlink shared channels, control channels, and broadcast channels. Perform demodulation.
  • the second sequence may be obtained by cyclically shifting the original sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0.
  • the number of bits of the cyclic shift may be 0.
  • the sequence of the common reference signal includes the second sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0; the sequence mapping of the common reference signal is determined according to the resource block where the SSB is located
  • the reference point includes: judging whether the CORESET 0 and the resource block offset of the resource block where the SSB is located> 0; if the CORESET 0 and the resource block offset of the resource block where the SSB is located> 0, determine the CORESET 0 Subcarrier 0 of the resource block with the smallest number of the resource block; determine the original sequence used to demodulate the CORESET 0 and/or the PDSCH scheduled by the CORESET 0; perform a cyclic shift on the original sequence to obtain the first A second sequence; subcarrier 0 of the resource block with the smallest number of the resource block where the CORESET 0 is located is used as a reference point for sequence mapping of the second sequence.
  • the sequence of the common reference signal can be used for mapping to obtain the data of the common reference signal.
  • the reference point may also be determined according to the offset between the resource block where the SSB is located and the reference point.
  • Fig. 4 is a flowchart of another specific implementation of step S22 in Fig. 2.
  • the step of determining the reference point of the sequence mapping of the common reference signal may include step S41 to step S42:
  • Step S41 Determine the offset between the resource block where the SSB is located and the reference point.
  • Step S42 Determine as the reference point of the first sequence and the reference point of the second sequence according to the subcarrier 0 of the resource block with the smallest number of the resource block in which the SSB is located and the offset.
  • the sequence of the common reference signal includes a first sequence for demodulating PBCH, a second sequence for demodulating CORESET 0 and/or a PDSCH scheduled by CORESET 0.
  • FIG. 5 is a schematic diagram of a time-frequency resource in an embodiment of the present invention.
  • f0 is the reference point used to demodulate the sequence mapping of the downlink control channel and the data channel in the PDSCH scheduled by PBCH, CORESET0, and/or CORESET0
  • M is the reference point f0 and SSB Offset.
  • the value of M can be predefined, for example, the value of M can be set to 100. Among them, the value of M can be pre-defined through the protocol.
  • the offset is defined as the difference between the minimum resource block index of the common resource block and the first resource block of the SS/PBCH block and the index of the common resource block where the reference point is located. value.
  • the offset M between the reference point and the SSB is determined first, and then the reference point f0 and the offset M of the first sequence are determined according to the resource block where the SSB is located.
  • the reference point f0 of the second sequence can determine the reference point f0 suitable for the common reference signal, and then can demodulate the downlink shared channel, the control channel, and the broadcast channel.
  • step S23 a time slot without SSB is determined.
  • step S24 in the time slot without SSB, it is determined that subcarrier 0 of common resource block 0 is a reference point for sequence mapping of the common reference signal.
  • the time slot without SSB can be determined, and then in the time slot without the SSB, the subcarrier 0 of the common resource block 0 determined in the prior art can be reused.
  • the solution of the reference point of the sequence mapping of the common reference signal determines the reference point of the sequence mapping of the common reference signal, and then realizes the mapping of the common reference signal to obtain the data of the common reference signal, which helps Improve the adaptability of integration with existing technologies.
  • the reference point of the sequence mapping of the common reference signal can also be determined by using multiple methods, so that the user can follow Actual selection.
  • the reference point may be determined according to the time slot with the SSB.
  • the step of determining the reference point of the sequence mapping of the common reference signal may further include: in the time slot with the SSB, determining the frequency domain resource of the SSB as the SSB frequency domain resource; In an SSB time slot or an SSB time slot, determine that the frequency domain resource of the first signal to be demodulated is located in the SSB frequency domain resource; determine that subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located is used The reference point of sequence mapping for demodulating the first signal to be demodulated; and/or, in the time slot with the SSB, the frequency domain resource with CORESET 0 is determined as the CORESET 0 frequency domain resource; In the time slot of the SSB or the time slot with SSB, determining that the frequency domain resource of the second signal to be demodulated is located in the CORESET 0 frequency domain resource but not in the SSB frequency domain resource; determining the resource block where the CORESET 0 is located Subcarrier
  • sequence of the second signal to be demodulated is obtained by cyclically shifting the original sequence used to demodulate the second signal to be demodulated.
  • determining the reference point of the sequence mapping of the common reference signal further includes: determining the subcarrier 0 of the common resource block 0 for signals other than the first signal to be demodulated and the second signal to be demodulated. Is a reference point for sequence mapping of the common reference signal.
  • FIG. 6 is a schematic diagram of another time-frequency resource in an embodiment of the present invention.
  • area A is used to indicate the time slot where the SSB is located
  • area B is used to indicate the frequency domain resources of SSB and CORESET 0, where area B1 is used to indicate the frequency domain resource of CORESET 0, and area B2 is used to indicate the frequency domain resource.
  • SSB frequency domain resources are used to indicate the time slot where the SSB is located.
  • the B1 area corresponds to the frequency domain resource of the second signal to be demodulated in the time slot without SSB or the time slot with SSB, and determines the subcarrier of the resource block with the smallest number in the resource block where the SSB is located.
  • 0 is the reference point of the sequence mapping used to demodulate the second signal to be demodulated.
  • the reference point of sequence mapping for demodulating the first signal to be demodulated is located at Subcarrier 0 of the resource block with the smallest number in the resource block where the SSB is located.
  • subcarrier 0 of common resource block 0 is the common reference signal The reference point for sequence mapping.
  • subcarrier 0 of common resource block 0 is the reference point for sequence mapping of the common reference signal, and it can also be determined according to whether the frequency domain resource of the signal to be demodulated is Located in the SSB frequency domain resource and/or CORESET 0 frequency domain resource, the reference points of sequence mapping are determined respectively.
  • the sequence mapping method of the common reference signal further includes: determining to carry the signal other than the common reference signal.
  • the downlink shared channel and control channel of other signals outside; the reference point for demodulating the downlink shared channel and control channel is determined to be subcarrier 0 of the resource block with the smallest number of the resource block where CORESET0 is located, or common resource block 0 Subcarrier 0.
  • the reference point of the sequence mapping can realize the mapping of the common reference signal to obtain the data of the common reference signal, and help to improve the adaptability of fusion with the existing technology.
  • the sequence of the common reference signal can be used for mapping, so as to obtain the data of the common reference signal, and fill in the prior art.
  • Blank which can realize the demodulation of the downlink shared channel, control channel, and broadcast channel.
  • FIG. 7 is a schematic structural diagram of a common reference signal sequence mapping apparatus in an embodiment of the present invention.
  • the sequence mapping device may include:
  • the reference point determining module 71 is adapted to determine the reference point of the sequence mapping of the common reference signal
  • the mapping module 72 is adapted to use the sequence of the common reference signal to map the common reference signal according to the reference point to obtain data of the common reference signal.
  • the embodiment of the present invention also provides a storage medium on which computer instructions are stored, and when the computer instructions are run, the steps of the sequence mapping method for the common reference signal shown in FIGS. 1 to 6 are executed.
  • the storage medium may be a computer-readable storage medium, for example, it may include non-volatile memory (non-volatile) or non-transitory (non-transitory) memory, and may also include optical disks, mechanical hard drives, solid state hard drives, and the like.
  • An embodiment of the present invention also provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes the above-mentioned FIGS. 1 to 1 when the computer instructions are executed.
  • Fig. 6 shows the steps of a sequence mapping method for a common reference signal.
  • the terminal includes, but is not limited to, terminal devices such as mobile phones, computers, and tablets.

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Abstract

一种公共参考信号的序列映射方法及装置、存储介质、终端，所述方法包括：确定所述公共参考信号的序列映射的参考点；根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。上述方法可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。

Description

公共参考信号的序列映射方法及装置、存储介质、终端
本申请要求于2019年10月31日提交中国专利局、申请号为201911051748.3、发明名称为“公共参考信号的序列映射方法及装置、存储介质、终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种公共参考信号的序列映射方法及装置、存储介质、终端。
背景技术
在NR系统的下行系统中，对于解调参考信号(De-Modulation Reference Signal,DMRS)，在序列映射时，需要确定序列映射的参考点，以确定序列映射的频域起点，进而采用该序列自所述频域起点对所述解调参考信号进行映射，以获得所述解调参考信号。其中，所述参考点可以用于指示序列在频域映射的起点位置，还可以用于指示序列在变换预编码前的时域抽样点位置。
然而，对于下行采用单载波波形的系统，如卫星系统、高频系统，通常会利用公共参考信号解调下行数据信道、控制信道等，但对于公共参考信号，目前尚未提供具体的序列映射参考点的确定方法。
亟需一种公共参考信号的序列映射方法，能够用于公共参考信号，确定所述参考点，从而能够获得所述公共参考信号的数据。
发明内容
本发明解决的技术问题是提供一种公共参考信号的序列映射方法及装置、存储介质、终端，可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。
为解决上述技术问题，本发明实施例提供一种公共参考信号的序列映射方法，包括以下步骤：确定所述公共参考信号的序列映射的参考点；根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。
可选的，确定所述公共参考信号的序列映射的参考点包括：确定有SSB(SS/PBCH block)的时隙；在有所述SSB的时隙中，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点。
可选的，所述公共参考信号的序列包括用于解调PBCH的第一序列；根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调PBCH的第一序列的序列映射的参考点。
可选的，所述公共参考信号的序列包括用于解调CORESET 0(Control resource set 0)和/或所述CORESET 0调度的PDSCH的第二序列；根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：判断是否所述CORESET 0与SSB所在的资源块的资源块偏移<＝0；如果所述CORESET 0与SSB所在的资源块的资源块偏移<＝0，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点。
需要指出的是，CORESET 0可以是指频域的控制资源集0，也可以指时域的控制资源集0.如果CORESET 0是指时域的控制资源集0，那么可以假定其在时域的资源与频域具有一定的对应关系，如一一对应。
可选的，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；根据所述SSB所在 的资源块，确定所述公共参考信号的序列映射的参考点包括：判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0；如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，在SSB所在的资源块，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点；如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则对于除SSB所在的资源块之外的资源块，确定所述CORESET 0所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点。
可选的，所述第二序列是对用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列进行循环移位得到的。
可选的，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0；如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则确定所述CORESET 0所在的资源块最小编号的资源块的子载波0；确定用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列；对所述原始序列进行循环移位，以得到所述第二序列；以所述CORESET 0所在的资源块最小编号的资源块的子载波0作为所述第二序列的序列映射的参考点。
可选的，所述公共参考信号的序列包括用于解调PBCH的第一序列、用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：确定SSB与参考点的偏移量；根据所述SSB所在的资源块以及所述偏移量，确定为所述第一序列的参考点以及所述第二序列的参考点。
可选的，确定所述公共参考信号的序列映射的参考点还包括：确定无SSB的时隙；在所述无SSB的时隙中，确定公共资源块0的子 载波0为所述公共参考信号的序列映射的参考点。
可选的，确定所述公共参考信号的序列映射的参考点还包括：在有SSB的时隙中，确定有所述SSB的频域资源，作为SSB频域资源；在无所述SSB的时隙或者有SSB时隙中，确定第一待解调信号的频域资源位于所述SSB频域资源；确定所述SSB所在的资源块中最小编号的资源块的子载波0为用于解调所述第一待解调信号的序列映射的参考点；和/或，在有所述SSB的时隙中，确定有CORESET 0的频域资源，作为CORESET 0频域资源；在无所述SSB的时隙或者有SSB时隙中，确定第二待解调信号的频域资源位于所述CORESET 0频域资源但不位于SSB频域资源；确定所述CORESET 0所在的资源块中最小编号的资源块的子载波0为所述用于解调所述第二待解调信号的序列映射的参考点。
可选的，所述第二待解调信号的序列是对用于解调第二待解调信号的原始序列进行循环移位得到的。
可选的，确定所述公共参考信号的序列映射的参考点还包括：对于除所述第一待解调信号以及第二待解调信号之外的其他信号，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
可选的，所述的公共参考信号的序列映射方法，还包括：确定承载除所述公共参考信号之外的其他信号的下行共享信道、控制信道；确定用于解调所述下行共享信道、控制信道的参考点为CORESET 0所在的资源块最小编号的资源块的子载波0，或者公共资源块0的子载波0。
为解决上述技术问题，本发明实施例提供一种公共参考信号的序列映射装置包括：参考点确定模块，适于确定所述公共参考信号的序列映射的参考点；映射模块，适于根据所述参考点，采用所述公共参考信号的序列对所述公共参考信号进行映射，以获得所述公共参考信号的数据。
为解决上述技术问题，本发明实施例提供一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述公共参考信号的序列映射方法的步骤。
为解决上述技术问题，本发明实施例提供一种终端，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述公共参考信号的序列映射方法的步骤。
与现有技术相比，本发明实施例的技术方案具有以下有益效果：
在本发明实施例中，确定所述公共参考信号的序列映射的参考点；根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。采用上述方案，通过确定所述公共参考信号的序列映射的参考点，可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据，填补现有技术中的空白，从而可以实现对下行共享信道、控制信道、广播信道的解调。
进一步，通过确定有SSB的时隙，进而在有所述SSB的时隙中，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点，可以基于SSB这一现有参数，确定参考点，进而实现对所述公共参考信号进行映射，以获得所述公共参考信号的数据。
进一步，确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调PBCH的第一序列的序列映射的参考点，相比于现有协议方案仅适用CORESET0和CORESET 0调度的PDSCH所在的符号，采用本发明实施例的方案，可以适用于公共参考信号的所有符号，从而能够对下行共享信道、控制信道、广播信道进行解调。
进一步，在无SSB的时隙中，可以确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点，还可以根据待解调信号的频域资源是否位于所述SSB频域资源和/或CORESET 0频域资源，分别确定序列映射的参考点。通过采用多种方式确定所述公共参考信 号的序列映射的参考点，便于用户根据实际情况选择。
附图说明
图1是本发明实施例中一种公共参考信号的序列映射方法的流程图；
图2是图1中步骤S11的一种具体实施方式的流程图；
图3是图2中步骤S22的一种具体实施方式的流程图；
图4是图2中步骤S22的另一种具体实施方式的流程图；
图5是本发明实施例中一种时频资源示意图；
图6是本发明实施例中另一种时频资源示意图；
图7是本发明实施例中一种公共参考信号的序列映射装置的结构示意图。
具体实施方式
如前所述，在NR系统的下行系统中，对于DMRS，已有确定序列映射的参考点的方案。
具体而言，对于用于物理下行共享信道(Physical Downlink Shared Channel，PDSCH)解调的DMRS：如果调度此PDSCH的物理下行控制信道(Physical Downlink Control Channel，PDCCH)，是关联于控制资源集0(Controlresource set 0，CORESET 0)和Type0-PDCCH公共搜索空间，且其循环冗余校验(Cyclic Redundancy Check，CRC)是由系统信息无线网络临时标识(System Information Radio Network Tempory Identity，SI-RNTI)加扰，则参考点是CORESET 0所在资源块中最小编号的资源块的子载波0；其他情况，则参考点是公共资源块0(Common resource block 0)的子载波0。
对于用于PDCCH解调的DMRS：如果此PDCCH关联的CORESET是由PBCH配置，或者是由PDCCH-ConfigCommon中的controlResourceSetZero配置，则参考点是此CORESET所在资源块中最小编号的资源块的子载波0；其他情况，则参考点是公共资源块0的子载波0。
对于用于物理广播信道(Physical Broadcast Channel，PBCH)解调的DMRS：其参考点是PBCH所在的资源块中最小编号的资源块的子载波0。
本发明的发明人经过研究发现，对于公共参考信号，目前尚未提供具体的序列映射参考点的确定方法。
在本发明实施例中，确定所述公共参考信号的序列映射的参考点；根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。采用上述方案，通过确定所述公共参考信号的序列映射的参考点，可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据，填补现有技术中的空白，从而可以实现对下行共享信道、控制信道、广播信道的解调。
为使本发明的上述目的、特征和有益效果能够更为明显易懂，下面结合附图对本发明的具体实施例做详细的说明。
参照图1，图1是本发明实施例中一种公共参考信号的序列映射方法的流程图。所述序列映射方法可以包括步骤S11至步骤S12：
步骤S11：确定所述公共参考信号的序列映射的参考点；
步骤S12：根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。
在步骤S11的具体实施中，由于是针对公共参考信号确定参考点，因此相比于现有技术中针对DMRS，更多是从时域资源上进行划分，针对不同时域资源上承载的信号，采用不同的方式确定参考点。
参照图2，图2是图1中步骤S11的一种具体实施方式的流程图。所述确定所述公共参考信号的序列映射的参考点的步骤可以包括步骤S21至步骤S22，还可以包括步骤S23至步骤S24，以下对每个步骤进行说明。
在步骤S21中，确定有SSB的时隙。
在步骤S22中，在有所述SSB的时隙中，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点。
在本发明实施例中，可以通过确定有SSB的时隙，进而在有所述SSB的时隙中，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点，可以基于SSB这一现有参数，确定参考点，进而实现对所述公共参考信号进行映射，以获得所述公共参考信号的数据。
进一步地，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点的步骤可以包括确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调PBCH的第一序列的序列映射的参考点。其中，所述公共参考信号的序列包括用于解调PBCH的第一序列。
在本发明实施例中，针对PBCH，确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调PBCH的第一序列的序列映射的参考点，相比于现有协议方案仅适用CORESET0和CORESET 0调度的PDSCH所在的符号，采用本发明实施例的方案，可以适用于公共参考信号，从而能够对下行共享信道、控制信道、广播信道进行解调。
进一步地，针对用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的序列，可以根据CORESET 0与SSB所在的资源块的资源块偏移确定参考点。
需要指出的是，基于由subCarrierSpacingCommon提供的 Type0-PDCCH公共搜索空间(Common search space，CSS)集合关联的CORESET的子载波间隔，偏移被定义为从Type0-PDCCH CSS集合关联的CORESET的最小RB索引到公共资源块与SS/PBCH块的第一个资源块重叠的最小资源块索引。
参照图3，图3是图2中步骤S22的一种具体实施方式的流程图。根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点的步骤可以包括步骤S31至步骤S32，还可以包括步骤S33至步骤S35，以下对每个步骤进行说明。
在步骤S31中，判断是否所述CORESET 0与SSB所在的资源块的资源块偏移<＝0。
在步骤S32中，如果所述CORESET 0与SSB所在的资源块的资源块偏移<＝0，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点。
其中，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列。
在本发明实施例中，针对CORESET 0和/或所述CORESET 0调度的PDSCH，确定所述SSB所在的资源块中最小编号的资源块的子载波0为参考点，可以适用于公共参考信号，从而能够对下行共享信道、控制信道、广播信道进行解调。
在步骤S33中，判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0。
在步骤S34中，如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，在SSB所在的资源块，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点。
在步骤S35中，如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则对于除SSB所在的资源块之外的资源块，确定所述CORESET 0所在的资源块最小编号的资源块的子载波0为所述第二 序列的序列映射的参考点。需要指出的是，所述除SSB所在的资源块之外的资源块是在有所述SSB的时隙的资源块。
其中，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列。
在本发明实施例中，针对CORESET 0和/或所述CORESET 0调度的PDSCH，在有SSB的资源块中，可以确定所述SSB所在的资源块中最小编号的资源块的子载波0为参考点，在没有SSB的资源块中，可以确定所述CORESET 0所在的资源块最小编号的资源块的子载波0，从而能够适用于公共参考信号，进而能够对下行共享信道、控制信道、广播信道进行解调。
进一步地，所述第二序列可以是对用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列进行循环移位得到的。
需要指出的是，当采用所述SSB所在的资源块中最小编号的资源块的子载波0为参考点，与采用所述CORESET 0所在的资源块最小编号的资源块的子载波0为参考点，得到的结果一致时，所述循环移位的位数可以为0。
当采用所述SSB所在的资源块中最小编号的资源块的子载波0为参考点，与采用所述CORESET 0所在的资源块最小编号的资源块的子载波0为参考点，得到的结果不一致时，需要对第二序列进行循环移位。
具体地，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0；如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则确定所述CORESET 0所在的资源块最小编号的资源块的子载波0；确定用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列； 对所述原始序列进行循环移位，以得到所述第二序列；以所述CORESET 0所在的资源块最小编号的资源块的子载波0作为所述第二序列的序列映射的参考点。
在本发明实施例中，通过设置对所述原始序列进行循环移位，从而可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。
继续参照图2，在步骤S22的具体实施中，还可以根据SSB所在的资源块与参考点的偏移量确定参考点。
参照图4，图4是图2中步骤S22的另一种具体实施方式的流程图。根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点的步骤可以包括步骤S41至步骤S42：
步骤S41：确定SSB所在的资源块与参考点的偏移量。
步骤S42：根据所述SSB所在的资源块的最小编号的资源块的子载波0以及所述偏移量，确定为所述第一序列的参考点以及所述第二序列的参考点。
其中，所述公共参考信号的序列包括用于解调PBCH的第一序列、用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列。
参照图5，图5是本发明实施例中一种时频资源示意图。
具体地，在SSB所在的时隙，f0是用于解调PBCH、CORESET0、和/或者CORESET 0调度的PDSCH中的下行控制信道和数据信道的序列映射的参考点，M为参考点f0与SSB偏移量。
在具体实施中，可以对M的取值进行预定义，例如设置M取值为100。其中，可以通过协议对M的取值进行预定义。
需要指出的是，基于SSB的子载波间隔，偏移量被定义为公共资源块与SS/PBCH块的第一个资源块重叠的最小资源块索引与参考 点所在的公共资源块的索引的差值。
在本发明实施例中，通过先确定参考点与SSB的偏移量M，再根据所述SSB所在的资源块以及所述偏移量M，确定为所述第一序列的参考点f0以及所述第二序列的参考点f0，可以确定适用于公共参考信号的参考点f0，进而能够对下行共享信道、控制信道、广播信道进行解调。
继续参照图2，在步骤S23中，确定无SSB的时隙。
在步骤S24中，在所述无SSB的时隙中，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
在本发明实施例的一种具体实施方式中，可以通过确定无SSB的时隙，进而在无所述SSB的时隙中，复用现有技术中确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点的方案，确定所述公共参考信号的序列映射的参考点，进而实现对所述公共参考信号进行映射，以获得所述公共参考信号的数据，有助于提高与现有技术融合的适应性。
需要指出的是，在本发明实施例的另一种具体实施方式中，在无SSB的时隙中，还可以通过采用多种方式确定所述公共参考信号的序列映射的参考点，便于用户根据实际情况选择。
具体地，在无所述SSB的时隙中，可以根据有SSB的时隙确定参考点。
更具体地，确定所述公共参考信号的序列映射的参考点的步骤还可以包括：在有SSB的时隙中，确定有所述SSB的频域资源，作为SSB频域资源；在无所述SSB的时隙或者有SSB时隙中，确定第一待解调信号的频域资源位于所述SSB频域资源；确定所述SSB所在的资源块中最小编号的资源块的子载波0为用于解调所述第一待解调信号的序列映射的参考点；和/或，在有所述SSB的时隙中，确定有CORESET 0的频域资源，作为CORESET 0频域资源；在无所述 SSB的时隙或者有SSB时隙中，确定第二待解调信号的频域资源位于所述CORESET 0频域资源但不位于SSB频域资源；确定所述CORESET 0所在的资源块中最小编号的资源块的子载波0为所述用于解调所述第二待解调信号的序列映射的参考点。
进一步地，所述第二待解调信号的序列是对用于解调第二待解调信号的原始序列进行循环移位得到的。
进一步地，确定所述公共参考信号的序列映射的参考点还包括：对于除所述第一待解调信号以及第二待解调信号之外的其他信号，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
参照图6，图6是本发明实施例中另一种时频资源示意图。
具体地，A区域用于指示SSB所在的时隙，B区域用于指示SSB以及CORESET 0的频域资源，其中，B1区域用于指示所述CORESET 0频域资源，B2区域用于指示所述SSB频域资源。
具体而言，B1区域在无SSB的时隙或者有SSB的时隙中，对应于第二待解调信号的频域资源，确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调所述第二待解调信号的序列映射的参考点。
B2区域在无SSB的时隙或者有SSB的时隙中，对应于第一待解调信号的频域资源，确定用于解调所述第一待解调信号的序列映射的参考点位于所述SSB所在的资源块中最小编号的资源块的子载波0。
对于图6中示出的其他信号资源块，属于除所述第一待解调信号以及第二待解调信号之外的其他信号，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
在本发明实施例中，在无SSB的时隙中，可以确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点，还可以根据待解调信号的频域资源是否位于所述SSB频域资源和/或CORESET 0 频域资源，分别确定序列映射的参考点。通过采用多种方式确定所述公共参考信号的序列映射的参考点，便于用户根据实际情况选择。
在本发明实施例中，还对除所述公共参考信号之外的其他信号进行了设定，具体地，所述的公共参考信号的序列映射方法还包括：确定承载除所述公共参考信号之外的其他信号的下行共享信道、控制信道；确定用于解调所述下行共享信道、控制信道的参考点为CORESET0所在的资源块最小编号的资源块的子载波0，或者公共资源块0的子载波0。
在本申请实施例中，通过复用现有技术中确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点的方案，确定除所述公共参考信号之外的其他信号的序列映射的参考点，可以实现对所述公共参考信号进行映射，以获得所述公共参考信号的数据，并且有助于提高与现有技术融合的适应性。
在本发明实施例中，通过确定所述公共参考信号的序列映射的参考点，可以实现采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据，填补现有技术中的空白，从而可以实现对下行共享信道、控制信道、广播信道的解调。
参照图7，图7是本发明实施例中一种公共参考信号的序列映射装置的结构示意图。所述序列映射装置可以包括：
参考点确定模块71，适于确定所述公共参考信号的序列映射的参考点；
映射模块72，适于根据所述参考点，采用所述公共参考信号的序列对所述公共参考信号进行映射，以获得所述公共参考信号的数据。
关于该公共参考信号的序列映射装置的原理、具体实现和有益效果请参照前文及图1至图6示出的关于公共参考信号的序列映射方法的相关描述，此处不再赘述。
本发明实施例还提供了一种存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述图1至图6示出的关于公共参考信号的序列映射方法的步骤。所述存储介质可以是计算机可读存储介质，例如可以包括非挥发性存储器(non-volatile)或者非瞬态(non-transitory)存储器，还可以包括光盘、机械硬盘、固态硬盘等。
本发明实施例还提供了一种终端，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述图1至图6示出的关于公共参考信号的序列映射方法的步骤。所述终端包括但不限于手机、计算机、平板电脑等终端设备。
虽然本发明披露如上，但本发明并非限定于此。任何本领域技术人员，在不脱离本发明的精神和范围内，均可作各种更动与修改，因此本发明的保护范围应当以权利要求所限定的范围为准。

Claims (16)

  1. 一种公共参考信号的序列映射方法，其特征在于，包括以下步骤：
    确定所述公共参考信号的序列映射的参考点；
    根据所述参考点，采用所述公共参考信号的序列进行映射，以获得所述公共参考信号的数据。
  2. 根据权利要求1所述的公共参考信号的序列映射方法，其特征在于，确定所述公共参考信号的序列映射的参考点包括：
    确定有SSB的时隙；
    在有所述SSB的时隙中，根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点。
  3. 根据权利要求2所述的公共参考信号的序列映射方法，其特征在于，所述公共参考信号的序列包括用于解调PBCH的第一序列；
    根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：
    确定所述SSB所在的资源块中最小编号的资源块的子载波0为所述用于解调PBCH的第一序列的序列映射的参考点。
  4. 根据权利要求2所述的公共参考信号的序列映射方法，其特征在于，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；
    根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：
    判断是否所述CORESET 0与SSB所在的资源块的资源块偏移<＝0；
    如果所述CORESET 0与SSB所在的资源块的资源块偏移<＝0，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述 第二序列的序列映射的参考点。
  5. 根据权利要求2所述的公共参考信号的序列映射方法，其特征在于，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；
    根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：
    判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0；
    如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，在SSB所在的资源块，则确定所述SSB所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点；
    如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则对于除SSB所在的资源块之外的资源块，确定所述CORESET 0所在的资源块最小编号的资源块的子载波0为所述第二序列的序列映射的参考点。
  6. 根据权利要求4或5所述的公共参考信号的序列映射方法，其特征在于，
    所述第二序列是对用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列进行循环移位得到的。
  7. 根据权利要求2所述的公共参考信号的序列映射方法，其特征在于，所述公共参考信号的序列包括用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；
    根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：
    判断是否所述CORESET 0与SSB所在的资源块的资源块偏移＞0；
    如果所述CORESET 0与SSB所在的资源块的资源块偏移＞0，则确定所述CORESET 0所在的资源块最小编号的资源块的子载波0；
    确定用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的原始序列；
    对所述原始序列进行循环移位，以得到所述第二序列；
    以所述CORESET 0所在的资源块最小编号的资源块的子载波0作为所述第二序列的序列映射的参考点。
  8. 根据权利要求2所述的公共参考信号的序列映射方法，其特征在于，所述公共参考信号的序列包括用于解调PBCH的第一序列、用于解调CORESET 0和/或所述CORESET 0调度的PDSCH的第二序列；
    根据所述SSB所在的资源块，确定所述公共参考信号的序列映射的参考点包括：
    确定SSB与参考点的偏移量；
    根据所述SSB所在的资源块以及所述偏移量，确定为所述第一序列的参考点以及所述第二序列的参考点。
  9. 根据权利要求1所述的公共参考信号的序列映射方法，其特征在于，确定所述公共参考信号的序列映射的参考点还包括：
    确定无SSB的时隙；
    在所述无SSB的时隙中，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
  10. 根据权利要求1所述的公共参考信号的序列映射方法，其特征在于，确定所述公共参考信号的序列映射的参考点还包括：
    在有SSB的时隙中，确定有所述SSB的频域资源，作为SSB频域 资源；
    在无所述SSB的时隙或者有SSB时隙中，确定第一待解调信号的频域资源位于所述SSB频域资源；
    确定所述SSB所在的资源块中最小编号的资源块的子载波0为用于解调所述第一待解调信号的序列映射的参考点；
    和/或，
    在有所述SSB的时隙中，确定有CORESET 0的频域资源，作为CORESET 0频域资源；
    在无所述SSB的时隙或者有SSB的时隙中，确定第二待解调信号的频域资源位于所述CORESET 0频域资源但不位于SSB频域资源；
    确定所述CORESET 0所在的资源块中最小编号的资源块的子载波0为所述用于解调所述第二待解调信号的序列映射的参考点。
  11. 根据权利要求10所述的公共参考信号的序列映射方法，其特征在于，
    所述第二待解调信号的序列是对用于解调第二待解调信号的原始序列进行循环移位得到的。
  12. 根据权利要求10所述的公共参考信号的序列映射方法，其特征在于，确定所述公共参考信号的序列映射的参考点还包括：
    对于除所述第一待解调信号以及第二待解调信号之外的其他信号，确定公共资源块0的子载波0为所述公共参考信号的序列映射的参考点。
  13. 根据权利要求1所述的公共参考信号的序列映射方法，其特征在于，还包括：
    确定承载除所述公共参考信号之外的其他信号的下行共享信道、 控制信道；
    确定用于解调所述下行共享信道、控制信道的参考点为CORESET0所在的资源块最小编号的资源块的子载波0，或者公共资源块0的子载波0。
  14. 一种公共参考信号的序列映射装置，其特征在于，包括：
    参考点确定模块，适于确定所述公共参考信号的序列映射的参考点；
    映射模块，适于根据所述参考点，采用所述公共参考信号的序列对所述公共参考信号进行映射，以获得所述公共参考信号的数据。
  15. 一种存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至13任一项所述公共参考信号的序列映射方法的步骤。
  16. 一种终端，包括存储器和处理器，所述存储器上存储有能够在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至13任一项所述公共参考信号的序列映射方法的步骤。
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