WO2018028293A1 - 下行信号的发送、接收方法以及发送端设备、接收端设备 - Google Patents

下行信号的发送、接收方法以及发送端设备、接收端设备 Download PDF

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Publication number
WO2018028293A1
WO2018028293A1 PCT/CN2017/087738 CN2017087738W WO2018028293A1 WO 2018028293 A1 WO2018028293 A1 WO 2018028293A1 CN 2017087738 W CN2017087738 W CN 2017087738W WO 2018028293 A1 WO2018028293 A1 WO 2018028293A1
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Prior art keywords
signal
time domain
sequence
location information
difference
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PCT/CN2017/087738
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English (en)
French (fr)
Inventor
秦熠
栗忠峰
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to KR1020197005935A priority Critical patent/KR20190034300A/ko
Priority to JP2019507142A priority patent/JP6765507B2/ja
Priority to EP17838425.1A priority patent/EP3487139B1/en
Publication of WO2018028293A1 publication Critical patent/WO2018028293A1/zh
Priority to US16/270,647 priority patent/US10904063B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26136—Pilot sequence conveying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2671—Time domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2673—Details of algorithms characterised by synchronisation parameters
    • H04L27/2676—Blind, i.e. without using known symbols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present invention relates to the field of communications, and more particularly to the transmission and reception of downlink signals in a wireless communication system.
  • Beamforming includes analog beamforming and digital beamforming, and analog beamforming is less expensive than digital beamforming.
  • analog beamforming technology can only form one beam at a time. Therefore, in order to transmit information to different directions, analog beamforming technology needs to transmit information with different beams at different times, which results in the synchronization signals must be scanned and sent on different beams at different times. Compared with the existing omnidirectional synchronization signal transmission mode of the Long Term Evolution (LTE) system, the analog beamforming technology can achieve wider coverage, but the number of transmissions is significantly increased.
  • the analog beamforming technique can transmit a beam multiple times in one subframe or a plurality of subframes in one frame.
  • the symbol sequence number of the currently detected synchronization signal in one subframe cannot be acquired, and the subframe number cannot be obtained.
  • Position information of the synchronization signal such as the frame number, the beam ID (beam identification), and the beam group ID (beam group identification).
  • the existing communication system As in the LTE system, there is only one synchronization signal in each subframe, and the symbol in which the synchronization signal is located is fixed, so there is no need to indicate the symbol number in which the synchronization signal is located.
  • there are two synchronization signals in each frame including a secondary synchronization signal (SSS) and a primary synchronization signal (PSS).
  • the primary synchronization signal PSS and the secondary synchronization signal SSS adopt a time division transmission mode in the time domain, so the PSS and the SSS occupy at least two symbols.
  • the existing communication system such as the existing LTE system and the LTE evolution system
  • the symbol sequence in which the synchronization signal is located cannot be distinguished; if in one frame If a synchronization signal is transmitted on multiple subframes within, the molecular frame number cannot be located.
  • different synchronization signals such as PSS and SSS occupy at least two symbols. Therefore, the existing communication system does not support the single symbol.
  • the transmission of the synchronization signal of the number causes the scanning speed of the beam to be limited.
  • the embodiments of the present invention provide a method for transmitting and receiving a downlink signal, and a device at the transmitting end and a device at the receiving end, to indicate location information of the signal in the time domain or a subcarrier spacing of the channel.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain;
  • a frame including the first signal and the second signal is transmitted.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the transmitting end device indicates, according to a frequency difference between the subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal, or a subcarrier sequence number difference, indicating that the first signal and/or the second signal are Location information on the time domain.
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the sending end device indicates, according to a time difference value or a symbol sequence number difference between a symbol occupied by the second signal and a symbol occupied by the first signal, indicating that the first signal and/or the second signal are in a time domain. location information.
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the transmitting end device indicates that the first signal and/or the second signal are in accordance with a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference Location information on the time domain.
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the transmitting end device indicates that the first signal and/or the second signal are in time according to a time difference value of the resource block occupied by the second signal and a time difference value of the corresponding resource block occupied by the first signal or a resource block number difference Location information on the domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • the obtaining the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • determining location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain include:
  • determining location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain include:
  • determining location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain include:
  • the receiving end device indicates that the first signal and/or the second signal are in accordance with a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference Location information on the time domain.
  • determining location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain include:
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • the transmitting device indicates the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the sending end device indicates the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain, including:
  • the transmitting end device indicates a subcarrier spacing of the channel according to a frequency difference between the subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal or a subcarrier sequence number difference.
  • the sending end device indicates the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain, including:
  • the transmitting end device indicates a subcarrier spacing of the channel according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the sending end device indicates the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain, including:
  • the transmitting end device indicates a subcarrier spacing of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference.
  • the transmitting device is located in the frequency domain and/or the time domain according to the first signal and the second signal. Relationship, indicating the subcarrier spacing of the channel, including:
  • the transmitting end device indicates a subcarrier spacing of the channel according to a time difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference.
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • Determining a subcarrier spacing of the channel according to a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • determining the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain specifically:
  • Determining a subcarrier spacing of the channel according to a relative positional relationship of the first signal and the second signal in a frequency domain and/or a time domain.
  • determining the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain includes:
  • the receiving end device determines a subcarrier spacing of the channel according to a frequency difference between the subcarrier occupied by the second signal and a subcarrier occupied by the first signal or a subcarrier sequence number difference.
  • determining the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain includes:
  • the receiving end device determines a subcarrier spacing of the channel according to a time difference value or a symbol sequence number difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • determining the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain includes:
  • the receiving end device determines a subcarrier spacing of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference.
  • determining the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain includes:
  • the receiving end device determines a subcarrier spacing of the channel according to a time difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • a frame including the first signal and the second signal is transmitted.
  • the sending end device indicates location information of the first signal and/or the second signal in the time domain according to a sequence of the first signal, specifically:
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to a root sequence number of the sequence of the first signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • the root sequence value is correspondingly determined by the symbol number, the subframe number, the frame number, the beam number, the beam group number, and the number in the cell identification group of the first signal and/or the second signal.
  • One or more oks are included in the root sequence value.
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • Position information of the first signal and/or the second signal in the time domain is determined based on the sequence of the first signal.
  • the receiving end device detects the first signal and obtains a root sequence number of the sequence of the first signal
  • Position information of the first signal and/or the second signal in the time domain is determined based on a root sequence number of the sequence of the first signal.
  • the receiving end device detects the first signal, and obtains a root sequence number of the first signal, including:
  • the receiving end device detects the first signal, obtains a sequence of the first signal, and calculates the first signal sequence obtained by the detection and the sequence generated according to the root sequence number and the sequence of the first signal.
  • a signal sequence is subjected to correlation detection to obtain the first signal having the strongest correlation and its corresponding root number.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • the transmitting device indicates the subcarrier spacing of the channel according to the sequence of the first signal
  • a frame including the first signal, the second signal, and the channel is transmitted.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the sending end device indicates the subcarrier spacing of the channel according to the sequence of the first signal, specifically:
  • the transmitting end device indicates a subcarrier spacing of the channel according to a root sequence number of the sequence of the first signal.
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • a subcarrier spacing of the channel is determined based on the sequence of the first signal.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the receiving end device detects the first signal and obtains a root sequence number of the sequence of the first signal
  • a subcarrier spacing of the channel is determined based on a root sequence number of the sequence of the first signal.
  • the receiving end device detects the first signal and obtains the sequence of the first signal, and further includes:
  • the receiving end device detects the first signal, obtains a sequence of the first signal, and generates a first signal sequence obtained by the detection and a sequence according to the sequence of the root sequence number and the first signal, and the first calculated
  • the signal sequence is correlated and the first signal with the strongest correlation and its corresponding root number are obtained.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • the transmitting device indicates the position information of the first signal and/or the second signal in the time domain by a third signal, and the position of the third signal is in the time domain by the first signal and/or the second signal Location information generation;
  • a frame including the first signal, the second signal, and the third signal is transmitted.
  • the method further includes determining, by the sequence of the first signal and/or the second signal, location information in the time domain and scrambling by the cell identity.
  • the method further includes determining, by the cell identity, a sequence of the third signal and scrambling the location information on the time domain by the first signal and/or the second signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically: the first One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of a signal and/or a second signal;
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • a frame including a first signal, a second signal, and a third signal
  • Detecting a sequence of the third signal, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain;
  • the method further includes: the receiving end device detecting the first signal and/or the second signal, acquiring the cell identifier;
  • determining, according to the sequence of the third signal, location information of the first signal and/or the second signal in a time domain including:
  • Detecting the sequence of the third signal to obtain a sequence of the third signal and determining location information of the first signal and/or the second signal in the time domain according to a root sequence number of the sequence of the third signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a method for transmitting a downlink signal, where the method includes:
  • the transmitting device indicates the subcarrier spacing of the channel by using a third signal, and the location of the third signal is generated by the location information of the first signal and/or the second signal in the time domain;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the method further includes:
  • the sequence of the third signal is determined according to location information of the first signal and/or the second signal in the time domain, and is scrambled by the cell identifier.
  • the method further includes:
  • the sequence of the third signal is determined according to the cell identity and is scrambled by the location information of the first signal and/or the second signal in the time domain.
  • an embodiment of the present invention provides a method for receiving a downlink signal, where the method includes:
  • a frame including a first signal, a second signal, and a third signal
  • Detecting a sequence of the third signal, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the method further includes:
  • the receiving end device detects the first signal and/or the second signal, and acquires the cell identifier
  • a subcarrier spacing of the channel is determined based on the sequence of the third signal.
  • determining the subcarrier spacing of the channel according to the sequence of the third signal includes:
  • the sequence of the third signal is detected to obtain a sequence of the third signal, and the subcarrier spacing of the channel is determined according to the root sequence number of the sequence of the third signal.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain;
  • a sending unit configured to send a frame including the first signal and the second signal.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the indicating unit is further configured to indicate the first signal according to a frequency difference or a subcarrier number difference between a subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal. And/or position information of the second signal in the time domain.
  • the indication unit is further configured to indicate the first signal and/or the first signal according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the position information of the two signals in the time domain is further configured to indicate the first signal and/or the first signal according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal. The position information of the two signals in the time domain.
  • the indication unit is further configured to indicate the first signal according to a frequency difference or a resource block number difference between a resource block occupied by the second signal and a corresponding resource block occupied by the first signal. And/or position information of the second signal in the time domain.
  • the indicating unit is further configured to indicate, according to a time difference value or a resource block number difference value of a resource block occupied by the second signal and a corresponding resource block occupied by the first signal, indicating the first signal and / or location information of the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiving unit configured to receive a frame including the first signal and the second signal
  • An acquiring unit configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • a determining unit configured to determine location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain.
  • the obtaining the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the determining unit is configured to determine the first signal according to a frequency difference between a subcarrier occupied by the second signal and a subcarrier occupied by the first signal or a subcarrier sequence number difference. And/or position information of the second signal in the time domain.
  • the determining unit is configured to determine the first signal and/or according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the position information of the second signal in the time domain is configured to determine the first signal and/or according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal. The position information of the second signal in the time domain.
  • the determining unit is specifically configured to: according to the resource block occupied by the second signal, A frequency difference value or a resource block number difference value of a corresponding resource block occupied by a signal, indicating location information of the first signal and/or the second signal in a time domain.
  • the determining unit is configured to determine, according to a time difference of a resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block number difference, to determine the first The positional information of the signal and/or the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate a subcarrier spacing of the channel according to a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • a sending unit configured to send a frame including the first signal, the second signal, and the channel
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the indicating unit is specifically configured to: indicate a subcarrier of the channel according to a frequency difference or a subcarrier sequence difference between a subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal interval.
  • the indicating unit is specifically configured to indicate a subcarrier spacing of the channel according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the indication unit is specifically configured to: indicate a subcarrier of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference interval.
  • the indicating unit is specifically configured to: indicate a subcarrier spacing of the channel according to a time difference of the resource block occupied by the second signal and a time difference of a corresponding resource block occupied by the first signal or a resource block number difference .
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiving unit configured to receive a frame including the first signal and the second signal
  • An acquiring unit configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • a determining unit configured to determine a subcarrier spacing of the channel according to a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the determining unit is specifically configured to determine a subcarrier spacing of the channel according to a relative positional relationship between the first signal and the second signal in a frequency domain and/or a time domain.
  • the determining unit is configured to determine a subcarrier spacing of the channel according to a frequency difference between the subcarrier occupied by the second signal and a subcarrier occupied by the first signal or a subcarrier sequence difference.
  • the determining unit is specifically configured to determine a subcarrier spacing of the channel according to a time difference or a symbol sequence difference of a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the determining unit is configured to determine a subcarrier of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference. interval.
  • the determining unit is configured to determine a subcarrier of the channel according to a time difference of the resource block occupied by the second signal and a corresponding resource block of the first signal or a resource block number difference. interval.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate location information of the first signal and/or the second signal in a time domain according to a sequence of the first signal
  • a sending unit configured to send a frame including the first signal and the second signal.
  • the indication unit is specifically configured to indicate location information of the first signal and/or the second signal in the time domain according to a root sequence number of the sequence of the first signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • the root sequence value is correspondingly determined by the symbol number, the subframe number, the frame number, the beam number, the beam group number, and the number in the cell identification group of the first signal and/or the second signal.
  • One or more oks are included in the root sequence value.
  • an embodiment of the present invention provides a receiving end device, including:
  • a detecting unit configured to detect the first signal, and obtain a sequence of the first signal
  • a determining unit configured to determine location information of the first signal and/or the second signal in a time domain based on the sequence of the first signal.
  • the detecting unit is specifically configured to detect a first signal, obtain a root sequence number of the sequence of the first signal, and the determining unit is specifically configured to determine, according to a root sequence number of the sequence of the first signal, Position information of the first signal and/or the second signal in the time domain.
  • the detecting unit is specifically configured to: detect a first signal, obtain a sequence of the first signal, and use the detected first signal sequence, according to the root sequence number and the first signal
  • the first signal sequence calculated by the sequence generation formula is subjected to correlation detection to obtain the first signal having the strongest correlation and its corresponding root number.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate a subcarrier spacing of the channel according to the sequence of the first signal
  • a sending unit configured to send a frame including the first signal, the second signal, and the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the indicating unit is specifically configured to indicate a subcarrier spacing of the channel according to a root sequence number of the sequence of the first signal.
  • an embodiment of the present invention provides a receiving end device, including:
  • a detecting unit configured to detect the first signal, and obtain a sequence of the first signal
  • a determining unit configured to determine a subcarrier spacing of the channel based on the sequence of the first signal.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the detecting unit is specifically configured to determine a subcarrier spacing of the channel based on a root sequence number of the sequence of the first signal.
  • the detecting unit is further configured to detect the first signal, obtain a sequence of the first signal, generate the first signal sequence obtained by the detection, and generate a sequence according to the root sequence number and the first signal.
  • the formula, the calculated first signal sequence performs correlation detection to obtain the first signal having the strongest correlation and its corresponding root number.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate, by using a third signal, position information of the first signal and/or the second signal in a time domain, and the position of the third signal is in the time domain by the first signal and/or the second signal Location information generated on;
  • a sending unit configured to send a frame including the first signal, the second signal, and the third signal.
  • the transmitting device further includes a determining unit, configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in a time domain, and Scrambling is performed by the cell identity.
  • the transmitting device further includes a determining unit, configured to determine, according to the cell identifier, a sequence of the third signal, and by using the first signal and/or the second signal The location information on the time domain is scrambled.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiving unit configured to receive a frame including the first signal, the second signal, and the third signal
  • a detecting unit configured to detect a sequence of the third signal, and a position of the third signal is generated by position information of the first signal and/or the second signal in a time domain;
  • a determining unit configured to determine location information of the first signal and/or the second signal in a time domain according to the sequence of the third signal.
  • the detecting unit is configured to: detect the first signal and/or the second signal, and acquire the cell identifier; the determining unit is specifically configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects the third signal, thereby obtaining a sequence of the third signal, and determining position information of the first signal and/or the second signal in the time domain according to the sequence of the third signal.
  • the detecting unit is further configured to: detect a sequence of the third signal to obtain a sequence of the third signal; the determining unit is further configured to: according to a root of the sequence of the third signal The sequence number determines location information of the first signal and/or the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a sending end device, including:
  • An indicating unit configured to indicate, by using a third signal, a subcarrier spacing of the channel, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain;
  • a sending unit configured to send a frame including the third signal and the channel
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the transmitting device further includes a determining unit, configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in a time domain, and Scrambling by cell identity.
  • the transmitting device further includes a determining unit, configured to determine a sequence of the third signal according to the cell identifier, and by using the first signal and/or the second signal in a time domain The location information is scrambled.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiving unit configured to receive a frame including the first signal, the second signal, and the third signal
  • a detecting unit configured to detect a sequence of the third signal, and a location of the third signal by the first signal And/or position information of the second signal in the time domain is generated;
  • a determining unit configured to determine a subcarrier spacing of the channel according to the sequence of the third signal
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the detecting unit is further configured to: detect the first signal and/or the second signal, and acquire the cell identifier; the determining unit is further configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects the third signal to obtain a sequence of third signals, and determines a subcarrier spacing of the channel based on the sequence of the third signals.
  • the determining unit is further configured to: detect a sequence of the third signal, to obtain a sequence of the third signal, and determine a subcarrier spacing of the channel according to a root sequence number of the sequence of the third signal.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate location information of the first signal and/or the second signal in a time domain according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain;
  • a transmitter configured to send a frame including the first signal and the second signal.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the processor is further configured to indicate the first signal according to a frequency difference or a subcarrier number difference between a subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal. And/or position information of the second signal in the time domain.
  • the processor is further configured to indicate the first signal and/or the first signal according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the position information of the two signals in the time domain is further configured to indicate the first signal and/or the first signal according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal. The position information of the two signals in the time domain.
  • the processor is further configured to indicate the first signal according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block sequence number difference. And/or position information of the second signal in the time domain.
  • the processor is further configured to indicate, according to a time difference value or a resource block number difference value of a resource block occupied by the second signal and a corresponding resource block occupied by the first signal, indicating the first signal and / or location information of the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • the embodiment of the present invention provides a receiving end device, including:
  • a receiver configured to receive a frame including the first signal and the second signal
  • a processor configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain, according to a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain Determining position information of the first signal and/or the second signal in the time domain.
  • the obtaining the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the processor is configured to determine the first signal according to a frequency difference between a subcarrier occupied by the second signal and a subcarrier occupied by the first signal or a subcarrier sequence number difference. And/or position information of the second signal in the time domain.
  • the processor is configured to determine the first signal and/or according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the processor is configured to: indicate, according to a frequency difference between a resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block sequence number difference, indicating the first The positional information of the signal and/or the second signal in the time domain.
  • the processor is specifically configured to determine the first according to a time difference of a resource block occupied by the second signal and a corresponding resource block of the first signal or a resource block number difference. The positional information of the signal and/or the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate a subcarrier spacing of the channel according to a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain;
  • a transmitter configured to send a frame including the first signal, the second signal, and the channel
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically:
  • the processor is specifically configured to: indicate a subcarrier of the channel according to a frequency difference between the subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal or a subcarrier sequence number difference interval.
  • the processor is specifically configured to indicate a subcarrier spacing of the channel according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the processor is specifically configured to: indicate a subcarrier of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference interval.
  • the processor is specifically configured to: indicate a subcarrier spacing of the channel according to a time difference of a resource block occupied by the second signal and a time difference of a corresponding resource block occupied by the first signal or a resource block number difference .
  • the embodiment of the present invention provides a receiving end device, including:
  • a receiver configured to receive a frame including the first signal and the second signal
  • a processor configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain, where the determining unit is configured to perform frequency domain and/or time according to the first signal and the second signal Positional relationship on the domain to determine the subcarrier spacing of the channel;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the processor is specifically configured to determine a subcarrier spacing of the channel according to a relative positional relationship of the first signal and the second signal in a frequency domain and/or a time domain.
  • the processor is configured to determine a subcarrier spacing of the channel according to a frequency difference between the subcarrier occupied by the second signal and a subcarrier occupied by the first signal or a subcarrier sequence difference. .
  • the processor is specifically configured to determine a subcarrier spacing of the channel according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the processor is specifically configured to determine a subcarrier of the channel according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal or a resource block number difference. interval.
  • the processor is configured to determine a subcarrier of the channel according to a time difference of the resource block occupied by the second signal and a corresponding resource block of the first signal or a resource block number difference. interval.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate location information of the first signal and/or the second signal in a time domain according to a sequence of the first signal
  • a transmitter configured to send a frame including the first signal and the second signal.
  • the processor is specifically configured to indicate location information of the first signal and/or the second signal in a time domain according to a root sequence number of the sequence of the first signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • the root sequence value is correspondingly determined by the symbol number, the subframe number, the frame number, the beam number, the beam group number, and the number in the cell identification group of the first signal and/or the second signal.
  • One or more oks are included in the root sequence value.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiver for receiving a frame including the first signal
  • a processor configured to detect the first signal, obtain a sequence of the first signal, and determine location information of the first signal and/or the second signal in a time domain based on the sequence of the first signal.
  • the processor is specifically configured to detect the first signal, obtain a root sequence number of the sequence of the first signal, and determine the first signal and/or based on a root sequence number of the sequence of the first signal.
  • the processor is specifically configured to: detect a first signal, obtain a sequence of the first signal, and use the detected first signal sequence, according to the root sequence number and the first signal
  • the first signal sequence calculated by the sequence generation formula is subjected to correlation detection to obtain the first signal having the strongest correlation and its corresponding root number.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate a subcarrier spacing of the channel according to the sequence of the first signal
  • a transmitter configured to send a frame including the first signal, the second signal, and the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the processor is specifically configured to indicate a subcarrier spacing of the channel according to a root sequence number of the sequence of the first signal.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiver for receiving a frame including the first signal
  • a processor configured to detect the first signal, obtain a sequence of the first signal, and determine a subcarrier spacing of the channel based on the sequence of the first signal.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the processor is specifically configured to determine a subcarrier spacing of the channel based on a root sequence number of the sequence of the first signal.
  • the processor is further configured to detect the first signal, obtain a sequence of the first signal, Determining the first signal sequence obtained by detecting the first signal sequence according to the root sequence number and the sequence of the first signal, and performing correlation detection to obtain the first signal having the strongest correlation and corresponding Root number.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate, by using a third signal, location information of the first signal and/or the second signal in a time domain, and the location of the third signal is in the time domain by the first signal and/or the second signal Location information generated on;
  • a transmitter configured to send a frame including the first signal, the second signal, and the third signal.
  • the processor is further configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in a time domain, and perform scrambling by using the cell identifier.
  • the processor is further configured to determine, according to the cell identifier, a sequence of the third signal, and perform scrambling by location information of the first signal and/or the second signal in a time domain. .
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiver configured to receive a frame including a first signal, a second signal, and a third signal
  • a processor configured to detect a sequence of the third signal, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain, according to the third signal a sequence determining location information of the first signal and/or the second signal in a time domain.
  • the processor is specifically configured to: detect the first signal and/or the second signal, and acquire the cell identifier; the determining unit is specifically configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects the third signal, thereby obtaining a sequence of the third signal, and determining position information of the first signal and/or the second signal in the time domain according to the sequence of the third signal.
  • the processor is further configured to: detect a sequence of the third signal to obtain a sequence of the third signal; the determining unit is further configured to: according to a root of the sequence of the third signal The sequence number determines location information of the first signal and/or the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically:
  • One or more of a symbol number, a subframe number, a frame number, a beam number, and a beam group number of the first signal and/or the second signal are included in the first signal and/or the second signal.
  • an embodiment of the present invention provides a sending end device, including:
  • a processor configured to indicate, by using a third signal, a subcarrier spacing of the channel, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain;
  • a transmitter configured to send a frame including the third signal and the channel
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the processor is further configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in a time domain, and perform scrambling by using a cell identifier.
  • the processor is further configured to determine a sequence of the third signal according to a cell identity, and perform scrambling by location information of the first signal and/or the second signal in a time domain.
  • an embodiment of the present invention provides a receiving end device, including:
  • a receiver configured to receive a frame including a first signal, a second signal, and a third signal
  • a processor configured to detect a sequence of the third signal, and a location of the third signal by the first signal and / Or generating location information of the second signal in the time domain, and determining a subcarrier spacing of the channel according to the sequence of the third signal;
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the processor is further configured to: detect the first signal and/or the second signal, and acquire the cell identifier; the determining unit is further configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects the third signal to obtain a sequence of third signals, and determines a subcarrier spacing of the channel based on the sequence of the third signals.
  • the processor is further configured to detect a sequence of the third signal to obtain a sequence of the third signal, and determine a subcarrier spacing of the channel according to a root sequence number of the sequence of the third signal.
  • the position of the synchronization signal in the time domain and the subcarrier spacing of the channel are indicated by the relative positional relationship of the synchronization signal in the time domain or the frequency domain.
  • the embodiment of the present invention indicates the location of the synchronization signal in the time domain and the subcarrier spacing of the channel by the root sequence number of the synchronization sequence.
  • the embodiment of the present invention can also indicate the position of the synchronization signal in the time domain by the third signal. Therefore, the embodiment of the present invention can distinguish the symbol sequence number in which the synchronization signal is located, and the subframe number.
  • the embodiment of the invention supports the transmission of the single symbol synchronization signal, and increases the scanning speed of the beam.
  • FIG. 1 is a schematic diagram of an application scenario of the present invention
  • FIG. 2 is a schematic diagram of a method for transmitting and receiving downlink data according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic structural diagram of PSS and SSS of multiple symbols in one subframe according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic diagram of a method for transmitting and receiving downlink data according to Embodiment 2 of the present invention.
  • FIG. 5 is a schematic diagram of a method for sending and receiving downlink data according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of PSS and SSS of multiple symbols in one subframe according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic diagram of a method for transmitting and receiving downlink data according to Embodiment 4 of the present invention.
  • FIG. 8 is a schematic diagram of a method and a receiving method for downlink data according to Embodiment 5 of the present invention.
  • FIG. 9 is a schematic structural diagram of PSS and SSS of multiple symbols in a frame according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic diagram of a method for transmitting and receiving downlink data according to Embodiment 6 of the present invention.
  • FIG. 11 is a schematic diagram of a first type of sending end device according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a first receiving end device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of a second sending end device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of a second receiving end device according to an embodiment of the present invention.
  • FIG. 15 is a schematic diagram of a third type of sending end device according to an embodiment of the present invention.
  • FIG. 16 is a schematic diagram of a third receiving end device according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of a fourth type of sending end device according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram of a fourth receiving end device according to an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of a fifth type of transmitting end device according to an embodiment of the present invention.
  • FIG. 20 is a schematic diagram of a fifth receiving end device according to an embodiment of the present invention.
  • FIG. 21 is a schematic diagram of a sixth type of sending end device according to an embodiment of the present invention.
  • FIG. 22 is a schematic diagram of a sixth receiving device according to an embodiment of the present invention.
  • the transmitting end device indicates location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and/or the second signal in the frequency domain. For example, the transmitting end device indicates the symbol number and/or the subframe number of the first signal and the second signal according to the difference between the lowest subcarrier number of the second signal and the highest subcarrier number of the first signal.
  • the receiving device receives the frame including the first signal and the second signal, and obtains a positional relationship between the first signal and the second signal in the frequency domain and/or the time domain. And determining position information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain. For example, the receiving end device obtains the symbol sequence number and/or the subframe number of the first signal and the second signal according to the difference between the lowest subcarrier number of the second signal and the highest subcarrier number of the first signal.
  • the transmitting end device indicates a subcarrier spacing of the channel according to a positional relationship of the first signal and the second signal in a frequency domain and/or a time domain, where the channel includes a broadcast channel and/or a shared channel and/or a control channel.
  • the transmitting device indicates the subcarrier spacing of the channel according to the difference between the lowest subcarrier number of the second signal and the highest subcarrier number of the first signal.
  • the receiving device receives the frame including the first signal and the second signal, and obtains a positional relationship between the first signal and the second signal in the frequency domain and/or the time domain.
  • the subcarrier spacing of the channel is determined according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain. For example, the receiving device obtains the subcarrier spacing of the channel according to the difference between the lowest subcarrier number of the second signal and the highest subcarrier number of the first signal.
  • the transmitting device indicates location information of the first signal and/or the second signal in the time domain according to the first signal sequence. For example, if the source device indicates the symbol sequence number of the first signal and the second signal according to the root sequence number of the first signal, the value of the root sequence number is determined by the symbol sequence number.
  • the receiving device receives the frame including the first signal and the second signal, detects the first signal, and obtains a sequence of the first signal.
  • the receiving end device determines location information of the first signal and/or the second signal in the time domain according to the sequence of the first signal. For example, the receiving device obtains the root sequence number of the sequence of the first signal. Position information of the first signal and/or the second signal in the time domain is determined based on a root sequence number of the sequence of the first signal.
  • the transmitting device indicates the subcarrier spacing of the channel according to the sequence of the first signal sequence.
  • the channel includes a broadcast channel and/or a shared channel and/or a control channel.
  • the receiving device receives the frame including the first signal and the second signal, detects the first signal, and obtains a sequence of the first signal.
  • the receiving end device determines the subcarrier spacing of the channel according to the sequence of the first signal.
  • the transmitting device indicates the position information of the first signal and/or the second signal in the time domain by a third signal.
  • the sequence of the third signal is generated from position information of the first signal and/or the second signal in the time domain.
  • the receiving device receives the frame including the first signal, the second signal, and the third signal. A sequence of the third signal is detected. And determining location information of the first signal and/or the second signal in the time domain according to the sequence of the third signal.
  • the transmitting device transmits a frame including the third signal and the channel by using a third signal indicating a subcarrier spacing of the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the receiving end device receives the frame including the first signal, the second signal, and the third signal, detects a sequence of the third signal, and determines a subcarrier spacing of the channel according to the sequence of the third signal.
  • LTE Long Term Evolution
  • 5G Fifth Generation
  • 3gPP 3g Partnership Project
  • the device at the sending end of the embodiment of the present invention may be a base station, a relay, an access device, etc.
  • the device at the receiving end may be a User Equipment (UE), a Mobile Station (MS), or a terminal. (Terminal) and so on.
  • the sender device may also be a transceiver device TRP integrated in one device
  • the receiver device may also be a transceiver device TRP integrated in one device.
  • the transmitting device is a base station and the receiving device is a terminal.
  • Embodiment 1 of the present invention The method for transmitting and receiving downlink data provided in Embodiment 1 of the present invention is described in detail below with reference to FIG. 2 and FIG.
  • Step 201 The base station indicates location information of the first signal and the second signal in the time domain according to a relative position relationship between the first signal, that is, the primary synchronization signal PSS and the second signal, that is, the secondary synchronization signal SSS, in the frequency domain.
  • the base station may also indicate location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the time domain.
  • the embodiment of the present invention only states that the base station indicates the position information of the first signal and the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station indicates the first signal, the symbol number of the second signal, and/or the subframe number according to the relative positional relationship of the PSS and the SSS in the frequency domain.
  • the base station indicates the symbol number and/or the subframe number of the PSS signal and the SSS signal according to the difference between the PSS lowest subcarrier sequence number and the SSS highest subcarrier sequence number, as shown in Table 1 and Table 3 below.
  • the base station indicates the symbol number and/or the subframe number of the PSS signal and the SSS signal according to the difference between the PSS minimum resource block RB sequence number and the SSS highest resource block RB sequence number, as shown in Table 2 and Table 4 below.
  • the base station transmits PSS and SSS on a plurality of symbols in subframe 1, and the PSS and SSS are frequency-divided in the frequency domain. For example, if one subframe contains 12 symbols, the base station transmits the primary synchronization signal PSS and the secondary on all of the symbols 0 to 11 of the subframe 1 that match or part of the symbols (symbol 0 to symbol 3 as shown in FIG. 3).
  • the synchronization signal SSS, and the primary synchronization signal PSS and the secondary synchronization signal SSS under the same beam are mapped on one symbol. For example, mapping on the same OFDM symbol.
  • each primary synchronization signal PSS and the secondary synchronization signal SSS under the same beam are mapped on one symbol.
  • each primary synchronization signal PSS is mapped on six resource blocks (RBs).
  • the primary synchronization signal PSS is mapped on 6 RBs in the center of the frequency band, and the primary synchronization signal PSS is mapped on the other subcarriers except the 5 subcarriers of the highest sequence number and the 5 subcarriers of the lowest sequence number among the 6 RBs.
  • each RB includes 12 subcarriers, and 6 RBs include 72 subcarriers.
  • the primary synchronization signal PSS is mapped on consecutive 62 subcarriers except the 5 subcarriers with the highest sequence number and the 5 subcarriers with the lowest sequence number.
  • the secondary synchronization signal SSS is mapped on six consecutive RBs except for the 6 RBs occupied by the PSS, and the secondary synchronization signal SSS is also mapped to the 5 subcarriers except the highest sequence number among the 6 RBs. And 62 subcarriers other than the 5 subcarriers of the lowest sequence number.
  • each secondary synchronization signal SSS and the primary synchronization signal PSS under the same beam are mapped on one symbol.
  • the subcarrier numbers occupied by each primary synchronization signal PSS are the same, and the subcarrier numbers occupied by the secondary synchronization signal SSS increase with the increase of the symbol number occupied by the secondary synchronization signal SSS.
  • the subcarrier number occupied by the PSS may also decrease as the number of symbols it occupies increases (not shown in FIG. 3). In this case, the SSS highest subcarrier number is smaller than the PSS lowest subcarrier number. The following is only explained in conjunction with the example of FIG. 3.
  • the base station passes the difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS, Indicate the symbol number of the SSS and PSS, see Table 1 below.
  • a represents the highest subcarrier number of the PSS mapping. As shown in Table 1, as the symbol sequence number increases, the difference between the lowest subcarrier number of the SSS mapping and the highest subcarrier number of the PSS map gradually increases.
  • the symbol number of the PSS and the SSS can be obtained by the difference between the lowest subcarrier number mapped by the SSS and the highest subcarrier number mapped by the PSS.
  • Table 1 is an example where the minimum difference between the lowest subcarrier number mapped by the SSS and the highest subcarrier number mapped by the PSS is 11.
  • the difference between the lowest subcarrier number of the SSS mapping and the highest subcarrier number of the PSS mapping may be any integer greater than or equal to 10. The reason is that the PSS and the SSS are mapped on subcarriers other than the 5 subcarriers of the highest sequence number and the 5 subcarriers of the lowest sequence number.
  • the base station indicates the location information of the PSS and/or the SSS in the time domain according to the difference between the sequence number of the lowest subcarrier occupied by the SSS and the sequence number of the highest subcarrier occupied by the PSS.
  • the base station may also indicate the PSS and/or the difference between the sequence number of the next-lowest subcarrier occupied by the SSS and the sequence number of the next highest subcarrier occupied by the PSS.
  • the location information of the SSS in the time domain may be indicated.
  • the base station of the embodiment of the present invention indicates the position information of the first signal and/or the second signal in the time domain according to the difference between the subcarrier number occupied by the second signal SSS and the corresponding subcarrier sequence number occupied by the first signal SSS. .
  • the base station in the embodiment of the present invention is not limited to indicating location information of the first signal and/or the second signal in the time domain according to the difference of the subcarrier numbers.
  • the base station may also be based on the subcarrier frequency occupied by the second signal and the corresponding subcarrier frequency occupied by the first signal.
  • the difference in rate indicating the position information of the first signal and/or the second signal in the time domain.
  • the base station in the embodiment of the present invention is not limited to indicating the position information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station may also indicate location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the time domain.
  • the base station indicates location information of the first signal and/or the second signal in the time domain according to a time difference or a symbol sequence difference between the symbol occupied by the second signal and the symbol occupied by the first signal.
  • the above table 1 indicates the symbol sequence number of the PSS and the SSS, that is, the subcarrier level adjustment granularity, based on the difference between the lowest subcarrier number mapped by the SSS and the highest subcarrier number mapped by the PSS.
  • the difference between the lowest resource block RB sequence number mapped by the SSS and the highest resource block RB sequence number mapped by the PSS may be used to indicate the symbol sequence number of the PSS and the SSS, that is, the RB level adjustment granularity is adopted, as shown in Table 2 below.
  • b represents the highest RB sequence number of the PSS mapping. As shown in Table 2, as the symbol sequence number increases, the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS map gradually increases.
  • Table 2 is an example where the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS mapping is 1.
  • the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number mapped by the PSS may be any integer greater than or equal to 1.
  • the base station transmits the primary synchronization signal PSS and the auxiliary signal in a subframe, such as multiple symbols of the subframe 1.
  • the step signal SSS indicates the symbol number of the PSS and the SSS according to the positional relationship of the primary synchronization signal PSS and the secondary synchronization signal SSS in the frequency domain.
  • the base station may also transmit the PSS and the SSS in multiple subframes of one frame, and indicate the subframe number and the symbol sequence number of the PSS and the SSS according to the positional relationship of the PSS and the SSS in the frequency domain.
  • the base station can transmit the PSS and the SSS on all the symbols of all the subframes of one frame, or can transmit the PSS and the SSS on all the symbols of the partial subframe of one frame, and can also be on the partial symbols of the partial subframe of one frame.
  • Send PSS and SSS The following is an example of transmitting a synchronization signal on a partial subframe of a frame, subframe 0, partial symbol of subframe 1, symbol 0-symbol 5, and illustrates that the base station transmits multiple symbols in multiple subframes of one frame. To indicate the symbol number of the PSS and SSS.
  • a represents the highest subcarrier number of the PSS mapping; and in the subcarrier and symbol number list in Table 3, 00 represents the 0th symbol of the 0th subframe, and 01 represents the 1st of the 0th subframe.
  • the difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS can indicate the subframe number and symbol number of the PSS and the SSS.
  • Table 3 is an example where the minimum difference between the SSS lowest subcarrier number and the PSS highest subcarrier number is 11. In fact, the difference between the SSS minimum subcarrier sequence number and the PSS highest subcarrier sequence number may be greater than or equal to 10. Any integer. The reason is that the PSS and the SSS are mapped on subcarriers other than the 5 subcarriers of the highest sequence number and the 5 subcarriers of the lowest sequence number.
  • the above table 3 is an example in which the difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS, indicating the subframe number and the symbol number of the PSS, the SSS, that is, the subcarrier level adjustment granularity.
  • the difference between the lowest resource block RB sequence number of the SSS and the highest resource block RB sequence number of the PSS may be used to indicate the subframe number and the symbol sequence number of the PSS and the SSS, that is, the RB level adjustment granularity is adopted, as shown in Table 4 below.
  • b represents the highest RB sequence number of the PSS mapping; and in the subcarrier and symbol number list in Table 4, 00 represents the 0th symbol of the 0th subframe, and 01 represents the 1st symbol of the 0th subframe.
  • 02 indicates the 2nd symbol of the 0th subframe, 03 indicates the 3rd symbol of the 0th subframe, 04 indicates the 4th symbol of the 0th subframe, and 05 indicates the 5th symbol of the 0th subframe, 10
  • Indicates the 0th symbol of the first subframe 11 indicates the first symbol of the first subframe, 12 indicates the second symbol of the first subframe, 13 indicates the third symbol of the first subframe, and 14 indicates the first symbol.
  • the fourth symbol of one subframe, and 15 indicates the fifth symbol of the first subframe.
  • Table 4 is an example in which the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS mapping is 1.
  • the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS mapping may be Is any integer greater than or equal to 1.
  • the base station indicates the location information of the PSS and/or the SSS in the time domain according to the difference between the sequence number of the lowest resource block RB occupied by the SSS and the sequence number of the highest resource block RB occupied by the PSS. .
  • Field The embodiment of the present invention is not limited thereto.
  • the base station may also indicate the PSS and/or the difference between the sequence number of the second lowest resource block RB occupied by the SSS and the sequence number of the second highest resource block RB occupied by the PSS. Or the location information of the SSS in the time domain.
  • the base station indicates that the first signal and/or the second signal are in the time domain according to the difference between the resource block RB sequence number occupied by the second signal SSS and the corresponding resource block RB sequence number occupied by the first signal SSS. location information.
  • the base station in the embodiment of the present invention is not limited to indicating location information of the first signal and/or the second signal in the time domain according to the difference value of the resource block RB sequence number.
  • the base station may also indicate location information of the first signal and/or the second signal in the time domain according to a difference between a resource block RB frequency occupied by the second signal and a corresponding resource block RB frequency occupied by the first signal.
  • the base station in the embodiment of the present invention is not limited to indicating the position information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station may also indicate location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the time domain.
  • the base station indicates location information of the first signal and/or the second signal in the time domain according to a time difference or a symbol sequence difference between the symbol occupied by the second signal and the symbol occupied by the first signal.
  • the base station can transmit the primary synchronization signal PSS and the secondary synchronization signal SSS on multiple symbols of one subframe, and indicate the symbols of the PSS and the SSS according to the positional relationship of the primary synchronization signal PSS and the secondary synchronization signal SSS in the frequency domain.
  • Serial number The base station may also transmit the PSS and the SSS in multiple subframes of one frame, and indicate the subframe number and symbol sequence number of the PSS and the SSS according to the positional relationship of the PSS and the SSS in the frequency domain.
  • the base station may also send the PSS and the SSS on multiple frames, and indicate the frame number, the subframe number, and the symbol sequence number of the PSS and the SSS according to the positional relationship of the PSS and the SSS in the frequency domain.
  • the base station can also indicate the beam group number and the beam number by using the positional relationship between the PSS and the SSS in the frequency domain. That is, the base station indicates the symbol sequence number, the subframe number, the frame number, the beam number, and the beam number of the synchronization signal by the positional relationship of the synchronization signal in the frequency domain, for example, the difference between the SSS lowest subcarrier number and the PSS highest subcarrier number.
  • One or more of the beam group numbers are examples of the beam group numbers.
  • the embodiment of the present invention is not limited to determining the location information of the synchronization signal in the time domain according to the difference between the SSS lowest subcarrier sequence number (or the SSS lowest RB sequence number) and the PSS highest subcarrier sequence number (or the PSS highest RB sequence number).
  • the location information of the primary synchronization signal PSS and the secondary synchronization signal SSS in the time domain may be determined by the positional relationship of the comb frequency division mapping of the adjacent subcarriers on the same symbol between the PSS and the SSS.
  • the comb frequency division mapping means that PSS and SSS are mapped on one symbol in the time domain, and PSS and SSS are cross-mapped on each subcarrier in the frequency domain. For example, in the time domain, PSS and SSS are mapped on symbol 1, in the frequency domain, PSS is mapped on subcarriers 0, 2, 4, 6, 8, ..., and SSS is mapped on subcarriers 1, 3, 5, and 7. ......on.
  • PCI physical cell identifier
  • the physical cell identifier PCI is a wireless signal used by the terminal to distinguish different cells. PCI is shown by the number within the cell ID group and the cell ID.
  • the base station indicates the cell ID (cell identifier) by indicating the number in the cell ID group (the number in the cell identifier group) through the PSS sequence, and indicates the cell ID (cell identifier) through one sequence set in the SSS sequence set 1 or the SSS sequence set 2; wherein the cell ID may be physical
  • the cell ID may also be a virtual cell ID or a super cell ID.
  • the base station indicates the numbers 0, 1, and 2 in the cell ID group by the three PSS sequences, respectively.
  • the SSS sequence set 1 and the SSS sequence set 2 respectively contain 168 different sequences, and the base station indicates the cell ID 0-167 by the 168 different sequences of the SSS sequence set 1 or the SSS sequence set 2, respectively.
  • Step 202 The terminal receives a frame including a primary synchronization signal PSS and a secondary synchronization signal SSS, and performs blind detection on the PSS.
  • the frequency of each subcarrier mapped by the PSS is obtained, including the frequency of the highest subcarrier mapped by the PSS.
  • the terminal obtains the PSS sequence by detecting the PSS, and further determines the number in the cell ID group.
  • Step 203 The terminal detects the secondary synchronization signal SSS, and obtains the frequency of each subcarrier mapped by the SSS, including the frequency of the highest subcarrier mapped by the PSS. Further, the terminal obtains the SSS sequence by detecting the SSS, thereby determining the cell ID. The terminal determines the physical cell identifier PCI based on the cell ID and the number in the cell ID group (obtained in step 202). Thereafter, the terminal can determine the scrambling manner of the signal and the channel in the communication process according to the PCI.
  • Step 204 The terminal determines location information of the PSS and the SSS in the time domain based on the frequency of the SSS mapped subcarrier and the frequency of the PSS mapped subcarrier.
  • the terminal obtains a difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS according to the difference between the frequency of the lowest subcarrier of the SSS and the frequency of the highest subcarrier of the PSS, and the lowest subcarrier sequence number of the SSS and the PSS.
  • the highest subcarrier sequence number is used as the difference, and the location information of the PSS and SSS in the time domain is determined by looking up the table. For example, the terminal determines the symbol sequence number mapped by the SSS and the PSS according to the calculated difference value.
  • steps 202-204 are based on the positional relationship of the terminal according to the first signal PSS and the second signal SSS in the frequency domain, for example, according to the difference between the SSS lowest subcarrier sequence number and the PSS highest subcarrier sequence number. Position information of the first signal and/or the second signal in the time domain.
  • the embodiment of the present invention is not limited thereto, and the terminal of the embodiment of the present invention may further determine the location information of the first signal and/or the second signal in the time domain by using the positional relationship of the PSS and the SSS in the time domain.
  • the specific implementation is the same as the steps 202-204, and details are not described herein again.
  • the base station transmits PSS and SSS on multiple symbols in one subframe
  • the terminal detects multiple symbols on the subframe, and further determines symbol numbers of PSS and SSS; and the base station is in one frame.
  • the PSS and the SSS are transmitted in a plurality of subframes, and the subframe number and the symbol number of the PSS and the SSS are determined as an example. In fact, embodiments of the invention are not limited thereto.
  • the base station determines the frame number and/or the beam number and/or the beam group number through the relative frequency domain positional relationship between the PSS and the SSS
  • the terminal can also detect the relative of the PSS and the SSS.
  • the frequency domain position relationship is determined, and the corresponding frame number and/or the beam number and/or the beam group number are determined.
  • the method is the same as the method for determining the symbol number, and details are not described herein again.
  • the subcarrier spacing is fixed, however, for future communication systems, for example, for 5G communication systems, the subcarrier spacing is likely to be unfixed.
  • the prior art does not solve the problem of how the base station indicates the subcarrier spacing, and how the terminal determines the subcarrier spacing.
  • the second embodiment of the present invention provides a method for solving the problem.
  • Step 401 The base station indicates a subcarrier spacing of the channel according to a first signal, that is, a primary synchronization signal PSS, and a second signal, that is, a positional relationship of the secondary synchronization signal SSS in the frequency domain, where the channel includes a broadcast channel and/or a shared channel and / or control channel.
  • a first signal that is, a primary synchronization signal PSS
  • a second signal that is, a positional relationship of the secondary synchronization signal SSS in the frequency domain
  • the channel includes a broadcast channel and/or a shared channel and / or control channel.
  • the base station may also indicate the subcarrier spacing of the channel according to the positional relationship of the first signal PSS and the second signal SSS in the time domain.
  • the embodiment of the present invention only describes the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station indicates the subcarrier spacing of the channel based on the relative positional relationship of the PSS and the SSS in the frequency domain. For example, the base station indicates the sub-channel of the channel according to the difference between the lowest subcarrier number of the PSS and the highest subcarrier number of the SSS. Carrier spacing, see Table 5 below. For another example, the base station indicates the subcarrier spacing of the channel according to the difference between the PSS minimum resource block RB sequence number and the SSS highest resource block RB sequence number, as shown in Table 6 below.
  • a represents the highest subcarrier number of the PSS mapping. It can be understood by those skilled in the art that the specific value of the subcarrier spacing is only an example. The specific value of the subcarrier spacing is not limited in the embodiment of the present invention.
  • the subcarrier spacing type n represents a (15*2n) KHz subcarrier spacing.
  • the subcarrier spacing of the channel can be obtained by the difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS.
  • Table 5 is an example where the minimum difference between the lowest subcarrier number mapped by the SSS and the highest subcarrier number mapped by the PSS is 11.
  • the difference between the lowest subcarrier number of the SSS mapping and the highest subcarrier number of the PSS mapping may be any integer greater than or equal to 10.
  • the base station indicates the subcarrier spacing of the channel according to the difference between the sequence number of the lowest subcarrier occupied by the SSS and the sequence number of the highest subcarrier occupied by the PSS. It can be understood by those skilled in the art that the embodiment of the present invention is not limited thereto.
  • the base station may also indicate the sub-channel of the channel by the difference between the sequence number of the next-lowest subcarrier occupied by the SSS and the sequence number of the next highest subcarrier occupied by the PSS. Carrier spacing.
  • the base station of the embodiment of the present invention indicates the subcarrier spacing of the channel according to the difference between the subcarrier number occupied by the second signal SSS and the corresponding subcarrier number occupied by the first signal SSS. Furthermore, the base station of the embodiment of the present invention is not limited to indicating the subcarrier spacing of the channel according to the difference of the subcarrier numbers. The base station may also be based on the subcarrier frequency occupied by the second signal and the corresponding subcarrier frequency occupied by the first signal. The difference, indicating the subcarrier spacing of the channel.
  • the base station in the embodiment of the present invention is not limited to indicating the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station may also indicate the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the time domain.
  • the base station indicates the subcarrier spacing of the channel according to the time difference or the symbol sequence difference between the symbol occupied by the second signal and the symbol occupied by the first signal.
  • the above table 5 is an example of indicating the subcarrier spacing of the channel by using the difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS, that is, the subcarrier level adjustment granularity.
  • the subcarrier spacing of the channel may be indicated by the difference between the lowest resource block RB sequence number of the SSS and the highest resource block RB sequence number of the PSS, that is, the RB level adjustment granularity is adopted, as shown in Table 6 below.
  • b denotes the highest RB sequence number of the PSS mapping. It can be understood by those skilled in the art that the specific value of the subcarrier spacing of Table 6 is only an example, which is not limited by the embodiment of the present invention.
  • Table 6 is an example in which the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS mapping is 1.
  • the difference between the lowest RB sequence number of the SSS mapping and the highest RB sequence number of the PSS mapping may be Is any integer greater than or equal to 1.
  • the base station indicates the subcarrier spacing of the channel according to the difference between the sequence number of the lowest resource block RB occupied by the SSS and the sequence number of the highest resource block RB occupied by the PSS.
  • the base station may also indicate the subcarrier spacing of the channel by using the difference between the sequence number of the second lowest resource block RB occupied by the SSS and the sequence number of the second highest resource block RB occupied by the PSS.
  • the base station of the embodiment of the present invention indicates the subcarrier spacing of the channel according to the difference between the resource block RB sequence number occupied by the second signal SSS and the corresponding resource block RB sequence number occupied by the first signal SSS.
  • the base station in the embodiment of the present invention is not limited to indicating location information of the first signal and/or the second signal in the time domain according to the difference value of the resource block RB sequence number.
  • the base station may also indicate the subcarrier spacing of the channel according to the difference between the resource block RB frequency occupied by the second signal and the corresponding resource block RB frequency occupied by the first signal.
  • the base station in the embodiment of the present invention is not limited to indicating the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain.
  • the base station may also indicate the subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the time domain.
  • the base station indicates the subcarrier spacing of the channel according to the time difference or the symbol sequence difference between the symbol occupied by the second signal and the symbol occupied by the first signal.
  • the embodiment of the present invention is not limited to determining the subcarrier spacing of the channel according to the difference between the SSS lowest subcarrier sequence number (or the SSS lowest RB sequence number) and the PSS highest subcarrier sequence number (or the PSS highest RB sequence number).
  • the subcarrier spacing of the channel may also be determined by the positional relationship of the comb frequency division mapping of the adjacent subcarriers on the same symbol between the PSS and the SSS.
  • Step 402 The terminal receives the frame including the primary synchronization signal PSS and the secondary synchronization signal SSS, and performs blind detection on the PSS to obtain the frequency of each subcarrier mapped by the PSS, including the frequency of the highest subcarrier mapped by the PSS.
  • the terminal obtains the PSS sequence by detecting the PSS, and further determines the number in the cell ID group.
  • Step 403 The terminal detects the secondary synchronization signal SSS, and obtains the frequency of each subcarrier mapped by the SSS, including the frequency of the highest subcarrier mapped by the PSS.
  • the terminal obtains the SSS sequence by detecting the SSS, thereby determining the cell ID.
  • the terminal determines the physical cell identifier PCI based on the cell ID and the number in the cell ID group (obtained in step 202). Thereafter, the terminal can determine the scrambling manner of the signal and the channel in the communication process according to the PCI.
  • Step 404 The terminal determines a subcarrier spacing of the channel based on a frequency of the SSS mapped subcarrier and a frequency of the PSS mapped subcarrier.
  • the terminal obtains a difference between the lowest subcarrier number of the SSS and the highest subcarrier number of the PSS according to the difference between the frequency of the lowest subcarrier of the SSS and the frequency of the highest subcarrier of the PSS, and the lowest subcarrier sequence number of the SSS and the PSS.
  • the highest subcarrier sequence number is used as a difference, and the subcarrier spacing of the channel is determined by looking up the table. For example, the terminal determines the subcarrier spacing of the channel according to the calculated difference and by looking up Table 5 or Table 6.
  • Embodiment 3 of the present invention The method for transmitting and receiving downlink data provided in Embodiment 3 of the present invention is described in detail below with reference to FIG. 5 and FIG.
  • Step 501 The base station indicates location information of the PSS and the SSS in the time domain according to the sequence of the first signal, that is, the primary synchronization signal PSS.
  • the base station indicates location information of the PSS and the SSS in the time domain according to the root sequence number corresponding to the PSS sequence.
  • PSS and the SSS are mapped on the same symbol, for example, onto the OFDM symbol.
  • the base station may transmit the PSS and the SSS through all symbols or partial symbols of one subframe.
  • the base station transmits the PSS and the SSS through all symbols of the subframe 1, including the symbol 0-symbol 11, and the base station transmits the PSS and the SSS through the partial symbols of the subframe 1, including the symbol 0-symbol 3 (as shown in FIG. 6).
  • the base station can also pass multiple subframes All or part of the symbol is sent to PSS and SSS.
  • the root sequence number corresponds to the PSS sequence one by one, that is, one PSS sequence corresponds to one root sequence number, and the number of PSS sequences is the same as the number of root sequence numbers. For example, there are 36 sequences, and there are 36 root sequence numbers. Since each PSS is mapped on 62 subcarriers, there are 62 elements per PSS sequence.
  • PSS sequence An example of a PSS sequence is:
  • each root sequence number corresponds to one PSS sequence, and each PSS sequence contains 62 elements.
  • the root sequence number u has 36 values
  • the 36 root sequence numbers can be used to indicate the number of the three cell ID groups and the 12 symbol numbers. See Table 7 below.
  • the root sequence numbers are from 0-35, which are used to indicate the number and symbol sequence number in the cell ID group.
  • the value of the root number u is not limited to 36, and the number is determined by the number of numbers in the cell ID group and the symbol number of the synchronization signal to be transmitted.
  • the values in Table 7 are only an example.
  • the root number u is not limited to the indicator symbol number and the number within the cell ID group.
  • the root number u may only indicate the symbol sequence number, as shown in the following Table 8.
  • the number of the cell ID group (which will be described later) may be indicated by a Master Information Block (MIB).
  • MIB Master Information Block
  • the root number u may also indicate one or more of a symbol sequence number, a subframe number, a frame number, a beam number, and a beam group number, and details are not described herein again.
  • the base station may indicate the number in all the cell ID groups by the root number u (see Table 7), or may not indicate the number in the cell ID group (see Table 8), or may only indicate the number in the partial cell ID group.
  • the number in the partial cell ID group is indicated by the root number u
  • the number in the other cell ID group is indicated by the MIB.
  • the number within the cell ID group may be indicated only by the MIB, and the number within the cell ID group is no longer indicated by the root sequence number u (as shown in Table 8).
  • the number in the cell ID group is indicated by the MIB and there are three numbers in the cell ID group, when the MIB is 00, the number in the cell ID group is 0, and when the MIB is 01, the number in the cell ID group is 1, MIB. When it is 10, it indicates that the number in the cell ID group is 2.
  • the base station uses the number in the cell ID group to the MIB pilot, and the initialization value of the MIB pilot is:
  • n s is the slot number
  • the following describes how the base station indicates the physical cell identity PCI.
  • PCI is used to distinguish between different cells, which are shown by the number within the cell ID group and the cell ID.
  • the base station can indicate the number in the cell ID group by the root sequence number u and/or the main message block MIB; the base station indicates the cell ID by using one sequence set in the SSS sequence set 1 or the SSS sequence set 2.
  • Step 502 The terminal receives a frame including a primary synchronization signal PSS and a secondary synchronization signal SSS, and performs blind detection on the PSS to obtain a root sequence number of the PSS sequence.
  • the terminal substitutes the root number u in the table 7 into values 0-35 into the above formula (1), and calculates a PSS sequence (including 62 elements) corresponding to each root number.
  • the terminal performs correlation detection on the calculated PSS sequence and the PSS sequence obtained by blind detection, and obtains a root sequence number corresponding to the most relevant PSS sequence in the root number u value 0-35, and the root sequence number This is the root sequence number of the received PSS sequence.
  • the terminal obtains the location information of the PSS and the SSS in the time domain according to the root sequence number of the PSS sequence and by looking up the table. For example, by querying Table 7 above, the number and symbol number in the cell ID group are obtained.
  • the base station may indicate the number and symbol sequence number in the cell ID group by using the root sequence number u.
  • the base station may also indicate only the symbol sequence number by the root sequence number u, and indicate the number within the cell ID group by the PSS sequence.
  • the terminal obtains the corresponding symbol sequence number by querying the above table 8, and determines the number in the cell ID group by using the PSS sequence corresponding to the root sequence number.
  • the base station may also indicate one or more of a subframe number, a frame number, a beam number, and a beam group number through a root sequence number of the PSS sequence.
  • the terminal obtains the corresponding subframe number and/or frame number and/or beam number and/or beam group number by querying the corresponding entry, and details are not described herein again.
  • Step 504 The terminal detects the secondary synchronization signal SSS, determines the cell ID through the SSS, and determines the physical cell identifier PCI by using the cell ID and the cell ID group number (obtained in step 503).
  • the subcarrier spacing is fixed, however, for future communication systems, for example, for 5G communication systems, the subcarrier spacing is likely to be unfixed.
  • the prior art does not solve the problem of how the base station indicates the subcarrier spacing, and how the terminal determines the subcarrier spacing.
  • the second embodiment of the present invention provides a method for solving the problem.
  • Embodiment 4 of the present invention The method for transmitting and receiving downlink data provided in Embodiment 4 of the present invention is described in detail below with reference to FIG.
  • Step 701 The base station indicates a subcarrier spacing of the channel according to the first signal, that is, the primary synchronization signal PSS sequence.
  • the base station indicates the subcarrier spacing of the channel according to the root sequence number corresponding to the PSS sequence.
  • the PSS and the SSS are mapped on the same symbol, and the symbol is an OFDM symbol.
  • the PSS sequence corresponds to the root sequence number, that is, one PSS sequence corresponds to one root sequence number, and the number of PSS sequences is the same as the number of root sequence numbers. For example, there are 36 sequences, and there are 36 root sequence numbers. Due to each PSS The mapping is on 62 subcarriers, so there are 62 elements per PSS sequence. The specific PSS and its relationship with the sequence are described in Equation (1) and related content.
  • the base station may indicate the subcarrier spacing and the number within the entire cell ID group by the root sequence number of the PSS.
  • the base station may indicate the subcarrier spacing and the partial cell ID group number by the root sequence number of the PSS, and the other cell ID group number is indicated by the primary message block MIB.
  • the base station and the terminal store the correspondence between the root sequence number and the subcarrier spacing in a table manner, or the root sequence number and the subcarrier spacing and the main message block MIB.
  • the base station uses the number in the cell ID group to the MIB pilot, and the initialization value of the MIB pilot is:
  • n s is the slot number
  • the following describes how the base station indicates the physical cell identity PCI.
  • PCI is used to distinguish different cells, which are represented by the number within the cell ID group and the cell ID.
  • the base station may indicate the number within the cell ID group by the root sequence number u and/or the primary message block MIB; the base station indicates the cell ID by using one sequence set in the SSS sequence set 1 or the SSS sequence set 2.
  • Step 702 The terminal receives a frame including a primary synchronization signal PSS and a secondary synchronization signal SSS, and performs blind detection on the PSS to obtain a root sequence number of the PSS sequence.
  • the terminal substitutes the root number u in the table 7 into values 0-35 into the above formula (1), and calculates a PSS sequence (including 62 elements) corresponding to each root number.
  • the terminal detects the correlation between the calculated PSS sequence and the PSS sequence obtained by blind detection, and obtains the root sequence number corresponding to the PSS sequence with the strongest correlation value of 0-35.
  • the root sequence number is Is the root sequence number of the received PSS sequence.
  • Step 703 The terminal obtains a subcarrier spacing of the channel according to the root sequence number of the PSS sequence and obtains a subcarrier spacing of the channel according to the root number of the PSS sequence.
  • Step 704 The terminal detects the secondary synchronization signal SSS, determines the cell ID through the SSS, and determines the physical cell identifier PCI by using the cell ID and the cell ID group number (obtained in step 703).
  • Embodiment 5 of the present invention The method for transmitting and receiving downlink data provided in Embodiment 5 of the present invention is described in detail below with reference to FIG. 8 and FIG.
  • Step 801 The base station indicates, by using a third signal, location information of the first signal and/or the second signal in the time domain, and The position of the third signal is generated from position information of the first signal and/or the second signal in the time domain.
  • the base station sends a plurality of synchronization signals, including a first signal, that is, a primary synchronization signal PSS, a second signal, that is, a secondary synchronization signal SSS, and a third signal, and the sequence of the third signal is based on the first signal and the second signal.
  • a first signal that is, a primary synchronization signal PSS
  • a second signal that is, a secondary synchronization signal SSS
  • a third signal and the sequence of the third signal is based on the first signal and the second signal.
  • the base station transmits the first signal PSS, the second signal SSS, and the third signal in a subframe, such as a plurality of symbols in the subframe 1, and the PSS, the SSS, and the third signal in each beam.
  • a subframe such as a plurality of symbols in the subframe 1
  • the PSS, the SSS, and the third signal in each beam.
  • One symbol is occupied, such as occupying one OFDM symbol, and the PSS, SSS, and third signals are frequency-divided in the frequency domain.
  • the primary synchronization signal PSS sequence may adopt a PSS sequence in LTE
  • the secondary synchronization signal SSS sequence may adopt an SSS first sequence group or an SSS second sequence group in LTE; wherein, the PSS sequence is used to indicate the number within the cell ID group, and the SSS sequence Used to indicate the cell ID.
  • the sequence of the third signal is determined by the first signal, the primary synchronization signal PSS, the second signal, the secondary synchronization signal SSS, in the time domain and is scrambled by the cell ID.
  • the sequence of the third signal is determined by the cell ID and is scrambled by the location information on the time domain by the PSS, SSS.
  • the location information of the PSS and the SSS in the time domain includes one or more of a symbol sequence number, a subframe number, a frame number, a beam number, and a beam group number.
  • the sequence of the third signal is determined by the position information of the PSS and the SSS in the time domain, and the cell ID scrambling is taken as an example to explain how to generate the sequence of the third signal.
  • the sequence of the third signal is:
  • u is the root sequence number of the third signal sequence
  • N ID is the cell ID.
  • the third signal indicates that the location information of the PSS and the SSS in the time domain is one or more of a PSS, a symbol number of the SSS, a subframe number, a frame number, a beam number, and a beam group number, and the root number u is taken.
  • the value is correspondingly one or more of a symbol sequence number, a subframe number, a frame number, a beam number, and a beam group number.
  • the value of the root sequence number u is a symbol sequence number, for example, the root sequence number is 0-11.
  • Step 802 The terminal receives the frame including the first signal PSS, the second signal SSS, and the third signal, performs blind detection on the first signal PSS, obtains a PSS sequence, and obtains a number in the cell ID group according to the PSS sequence.
  • Step 803 The terminal detects the second signal SSS, obtains an SSS sequence, and acquires a cell ID according to the SSS sequence.
  • Step 804 the terminal obtains a scrambling sequence according to the cell ID and according to the above formula (3).
  • the terminal according to the scrambling sequence And the sequence of the third signal is obtained by the formula (2).
  • the terminal performs correlation detection according to the sequence of the third signal, thereby obtaining a sequence u corresponding to the third signal sequence with the strongest correlation.
  • the terminal obtains the position information of the first signal PSS and the second signal SSS in the time domain according to the sequence u, such as obtaining the symbol number of the PSS and the SSS. It can be seen that the position of the third signal is generated from the position information of the first signal and/or the second signal in the time domain.
  • the terminal obtains a sequence of the third signal by using formulas (2) and (3), that is, if the base station indicates, by the third signal, that the location information of the PSS and the SSS in the time domain is the symbol number of the PSS and the SSS, then Substituting the coincidence number such as 0-11 into equations (2) and (3) respectively calculates a sequence of 12 third signals.
  • the terminal detects the correlation between the sequence of the third signal detected by the terminal and the calculated sequence of the 12 third signals, and obtains the third signal sequence with the strongest correlation and its corresponding root sequence number. Since the root sequence number corresponds to the location information of the PSS and the SSS in the time domain, if the root sequence number corresponds to the symbol sequence one by one. Therefore, by obtaining the root number based on the correlation operation, the symbol number corresponding to the root number can be obtained, that is, the position information of the PSS and the SSS in the time domain is obtained.
  • Embodiment 6 of the present invention The method for transmitting and receiving downlink data provided in Embodiment 6 of the present invention is described in detail below with reference to FIG.
  • Step 1001 The base station indicates a subcarrier spacing of the channel by using a third signal, and the location of the third signal is generated by location information of the first signal and/or the second signal in the time domain; wherein the channel includes a broadcast channel and/or Or shared channels and/or control channels.
  • the base station sends a plurality of synchronization signals, including a first signal, that is, a primary synchronization signal PSS, a second signal, that is, a secondary synchronization signal SSS, and a third signal, and the sequence of the third signal is based on the first signal and the second signal.
  • a first signal that is, a primary synchronization signal PSS
  • a second signal that is, a secondary synchronization signal SSS
  • a third signal and the sequence of the third signal is based on the first signal and the second signal.
  • the base station transmits the first signal PSS, the second signal SSS, and the third signal on multiple symbols in one subframe, and the PSS, SSS, and third signals under each beam occupy one symbol, such as One OFDM symbol is occupied, at which time the PSS, SSS, and third signals are frequency-divided in the frequency domain.
  • the primary synchronization signal PSS sequence may adopt a PSS sequence in LTE
  • the secondary synchronization signal SSS sequence may adopt an SSS first sequence group or an SSS second sequence group in LTE; wherein, the PSS sequence is used to indicate the number within the cell ID group, and the SSS sequence Used to indicate the cell ID.
  • the sequence of the third signal is determined by the first signal, the primary synchronization signal PSS, the second signal, the secondary synchronization signal SSS, in the time domain and is scrambled by the cell ID.
  • the sequence of the third signal is determined by the cell ID and is scrambled by the location information on the time domain by the PSS, SSS.
  • the sequence of the third signal is determined by the position information of the PSS and the SSS in the time domain, and the cell ID scrambling is taken as an example to explain how to generate the sequence of the third signal.
  • Step 1002 The terminal receives a frame including the first signal PSS, the second signal SSS, and the third signal, performs blind detection on the first signal PSS, obtains a PSS sequence, and obtains a number in the cell ID group according to the PSS sequence.
  • Step 1003 The terminal detects the second signal SSS, obtains an SSS sequence, and acquires a cell ID according to the SSS sequence.
  • Step 1004 The terminal obtains a scrambling sequence according to the cell ID and according to the above formula (3).
  • the terminal according to the scrambling sequence And the sequence of the third signal is obtained by the formula (2).
  • the terminal performs correlation detection according to the sequence of the third signal, thereby obtaining a sequence u corresponding to the third signal sequence with the strongest correlation.
  • the terminal obtains the subcarrier spacing of the channel according to the sequence u. It can be seen that the position of the third signal is generated from the position information of the first signal and/or the second signal in the time domain.
  • FIG. 11 is a schematic diagram of a first type of sending end device according to an embodiment of the present invention, where the sending end device includes an indicating unit 111 and a sending unit 112.
  • the indicating unit 111 is configured to indicate location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the transmitting unit 112 is configured to send a frame including the first signal and the second signal.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically: the relative relationship between the first signal and the second signal in the frequency domain and/or the time domain. Positional relationship.
  • the indicating unit 111 is further configured to indicate the first according to a frequency difference or a subcarrier number difference between a subcarrier occupied by the second signal and a corresponding subcarrier occupied by the first signal.
  • the indicating unit 111 is further configured to indicate the first signal and/or according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the indication unit 111 is further configured to indicate the first according to a frequency difference or a resource block number difference between a resource block occupied by the second signal and a corresponding resource block occupied by the first signal.
  • the indication unit 111 is further configured to indicate the first signal according to a time difference value or a resource block sequence number difference between a resource block occupied by the second signal and a corresponding resource block occupied by the first signal. And/or position information of the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • FIG. 12 is a schematic diagram of a first receiving end device according to an embodiment of the present invention.
  • the receiving end device includes a receiving unit 121, an obtaining unit 122, and a determining unit 123.
  • the receiving unit 121 is configured to receive a frame including the first signal and the second signal.
  • the obtaining unit 121 is configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain.
  • the determining unit 123 is configured to determine location information of the first signal and/or the second signal in the time domain according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the obtaining the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically: obtaining the first signal and the second signal in the frequency domain and/or time. The relative positional relationship on the domain.
  • the determining unit 123 is configured to determine, according to a frequency difference between the subcarrier occupied by the second signal and a subcarrier occupied by the first signal, or a subcarrier sequence number difference, to determine the first Signal and / or second letter The location information of the number in the time domain.
  • the determining unit 123 is configured to determine the first signal and/or according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal. Or location information of the second signal in the time domain.
  • the determining unit 123 is configured to: indicate, according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block sequence number difference, Position information of a signal and/or second signal in the time domain.
  • the determining unit 123 is configured to determine, according to a time difference of a resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block sequence number difference. Position information of a signal and/or second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • FIG. 13 is a schematic diagram of a second sending end device according to an embodiment of the present disclosure, where the sending end device includes an indicating unit 131 and a sending unit 132.
  • the indicating unit 131 is configured to indicate a subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the transmitting unit 132 is configured to send a frame including the first signal, the second signal, and the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the positional relationship between the first signal and the second signal in the frequency domain and/or the time domain is specifically: the relative relationship between the first signal and the second signal in the frequency domain and/or the time domain. Positional relationship.
  • the indicating unit 131 is specifically configured to: indicate a sub-channel of the channel according to a frequency difference or a sub-carrier number difference between the subcarrier occupied by the second signal and the corresponding subcarrier occupied by the first signal Carrier spacing.
  • the indicating unit 131 is specifically configured to indicate a subcarrier spacing of the channel according to a time difference or a symbol sequence difference between a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the indicating unit 131 is specifically configured to: indicate, according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block number difference, indicating a sub-channel of the channel Carrier spacing.
  • the indicating unit 131 is specifically configured to: indicate a subcarrier of the channel according to a time difference of the resource block occupied by the second signal and a time difference of a corresponding resource block occupied by the first signal or a resource block number difference interval.
  • FIG. 14 is a schematic diagram of a second receiving end device according to an embodiment of the present invention.
  • the receiving end device includes a receiving unit 141, an obtaining unit 142, and a determining unit 143.
  • the receiving unit 141 is configured to receive a frame including the first signal and the second signal.
  • the obtaining unit 142 is configured to acquire a positional relationship between the first signal and the second signal in a frequency domain and/or a time domain.
  • the determining unit 143 is configured to determine a subcarrier spacing of the channel according to the positional relationship of the first signal and the second signal in the frequency domain and/or the time domain.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the determining unit 143 is specifically configured to determine a subcarrier spacing of the channel according to a relative positional relationship of the first signal and the second signal in a frequency domain and/or a time domain.
  • the determining unit 143 is configured to determine, according to a frequency difference between the subcarrier occupied by the second signal and a subcarrier occupied by the first signal, or a subcarrier sequence difference, to determine a subcarrier of the channel. interval.
  • the determining unit 143 is specifically configured to determine a subcarrier spacing of the channel according to a time difference or a symbol sequence difference of a symbol occupied by the second signal and a symbol occupied by the first signal.
  • the determining unit 143 is specifically configured to determine, according to a frequency difference between the resource block occupied by the second signal and a corresponding resource block occupied by the first signal, or a resource block number difference, Carrier spacing.
  • the determining unit 143 is configured to determine, according to a time difference of the resource block occupied by the second signal and a time difference value of the corresponding resource block occupied by the first signal, or a resource block sequence number difference, Carrier spacing.
  • FIG. 15 is a schematic diagram of a third type of sending end device according to an embodiment of the present invention, where the sending end device includes an indicating unit 151 and a sending unit 152.
  • the indicating unit 151 is configured to indicate location information of the first signal and/or the second signal in the time domain according to a sequence of the first signal.
  • the transmitting unit 152 is configured to send a frame including the first signal and the second signal.
  • the indication unit 151 is specifically configured to indicate location information of the first signal and/or the second signal in the time domain according to a root sequence number of the sequence of the first signal.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • the root sequence value is correspondingly determined by the symbol number, the subframe number, the frame number, the beam number, the beam group number, and the number in the cell identification group of the first signal and/or the second signal.
  • One or more oks are included in the root sequence value.
  • FIG. 16 is a schematic diagram of a third receiving end device according to an embodiment of the present invention.
  • the receiving end device includes a detecting unit 161 and a determining unit 162.
  • the detecting unit 161 is configured to detect the first signal to obtain a sequence of the first signal.
  • the determining unit 162 is configured to determine location information of the first signal and/or the second signal in the time domain based on the sequence of the first signal.
  • the detecting unit 161 is specifically configured to detect a first signal, obtain a root sequence number of the sequence of the first signal, and the determining unit 162 is specifically configured to use a root sequence number based on a sequence of the first signal, Position information of the first signal and/or the second signal in the time domain is determined.
  • the detecting unit 161 is specifically configured to: detect a first signal, obtain a sequence of the first signal, and use the detected first signal sequence, according to the root sequence number and the first The sequence of signals is generated by the first signal sequence calculated by the formula, and correlation detection is performed to obtain the first signal having the strongest correlation and its corresponding root number.
  • FIG. 17 is a schematic diagram of a fourth type of sending end device according to an embodiment of the present invention, where the sending end device includes an indicating unit 171 and a sending unit 172.
  • the indicating unit 171 is configured to indicate a subcarrier spacing of the channel according to the sequence of the first signal.
  • the transmitting unit 172 is configured to send a frame including the first signal, the second signal, and the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the indicating unit 171 is specifically configured to indicate a subcarrier spacing of the channel according to a root sequence number of the sequence of the first signal.
  • FIG. 18 is a schematic diagram of a fourth receiving end device according to an embodiment of the present invention, where the receiving end device includes a detecting unit 181 and a determining unit 182.
  • the detecting unit 181 is configured to detect the first signal to obtain a sequence of the first signal.
  • the determining unit 182 is configured to determine a subcarrier spacing of the channel based on the sequence of the first signal.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the detecting unit 181 is specifically configured to determine a subcarrier spacing of the channel based on a root sequence number of the sequence of the first signal.
  • the detecting unit 181 is further configured to detect the first signal, obtain a sequence of the first signal, and use the detected first signal sequence and the sequence according to the root sequence number and the first signal. A formula is generated, the obtained first signal sequence is calculated, and correlation detection is performed to obtain a first signal having the strongest correlation and its corresponding root number.
  • FIG. 19 is a schematic diagram of a fifth type of sending end device according to an embodiment of the present invention.
  • the sending end device includes an indicating unit 191, a sending unit 192, and a determining unit 193.
  • the indicating unit 191 is configured to indicate, by the third signal, position information of the first signal and/or the second signal in the time domain, and the position of the third signal is in the time domain by the first signal and/or the second signal Location information generated on;
  • the transmitting unit 192 is configured to send a frame including the first signal, the second signal, and the third signal.
  • the determining unit 193 element is configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in a time domain, and perform scrambling by using the cell identifier. .
  • the determining unit 193 is configured to determine a sequence of the third signal according to the cell identifier, and perform scrambling by location information of the first signal and/or the second signal in a time domain. .
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • FIG. 20 is a schematic diagram of a fifth receiving device according to an embodiment of the present invention.
  • the receiving device includes a receiving unit 2001, a detecting unit 2002, and a determining unit 2003.
  • the receiving unit 2001 is configured to receive a frame including the first signal, the second signal, and the third signal.
  • the detecting unit 2002 is configured to detect a sequence of the third signal, and the position of the third signal is generated by position information of the first signal and/or the second signal in the time domain.
  • the determining unit 2003 is configured to determine location information of the first signal and/or the second signal in the time domain according to the sequence of the third signal.
  • the detecting unit 2002 is specifically configured to: detect the first signal and/or the second signal, and acquire the cell identifier; the determining unit is specifically configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects the third signal, thereby obtaining a sequence of the third signal, and determining position information of the first signal and/or the second signal in the time domain according to the sequence of the third signal.
  • the detecting unit 2002 is further configured to: detect a sequence of the third signal, thereby acquiring a sequence of the third signal; the determining unit is further configured to: according to the sequence of the third signal The root sequence number determines location information of the first signal and/or the second signal in the time domain.
  • the location information of the first signal and/or the second signal in the time domain is specifically: a symbol sequence number, a subframe number, a frame number, and a beam of the first signal and/or the second signal.
  • a symbol sequence number a subframe number
  • a frame number a frame number
  • a beam of the first signal and/or the second signal One or more of the number and beam group number.
  • FIG. 21 is a schematic diagram of a sixth type of sending end device according to an embodiment of the present invention.
  • the transmitting end device includes an indicating unit 2101, a sending unit 2102, and a determining unit 2103.
  • the indicating unit 2101 is configured to indicate a subcarrier spacing of the channel by the third signal, and the location of the third signal is generated by the location information of the first signal and/or the second signal in the time domain.
  • the transmitting unit 2102 is configured to send a frame including the third signal and the channel.
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the determining unit 2103 is configured to determine a sequence of the third signal according to location information of the first signal and/or the second signal in the time domain, and perform scrambling by the cell identifier.
  • the determining unit 2103 is configured to determine a sequence of the third signal according to the cell identifier, and perform scrambling by the first signal and/or the second signal in the time domain.
  • FIG. 22 is a schematic diagram of a sixth receiving end device according to an embodiment of the present invention.
  • the receiving end device includes a receiving unit 2201, a detecting unit 2202, and a determining unit 2203.
  • the receiving unit 2201 is configured to receive a frame including the first signal, the second signal, and the third signal;
  • the detecting unit 2202 is configured to detect a sequence of the third signal, and a location of the third signal is generated by location information of the first signal and/or the second signal in a time domain;
  • the determining unit 2203 is configured to determine a subcarrier spacing of the channel according to the sequence of the third signal
  • the channel comprises a broadcast channel and/or a shared channel and/or a control channel.
  • the detecting unit 2202 is further configured to detect the first signal and/or the second signal, and obtain the cell identifier.
  • the determining unit 2203 is further configured to obtain a scrambling sequence according to the cell identifier, according to the The scrambling sequence detects a third signal to obtain a sequence of third signals, and determines a subcarrier spacing of the channel based on the sequence of the third signals.
  • the determining unit 2203 is further configured to: detect a sequence of the third signal, to obtain a sequence of the third signal, and determine a subcarrier spacing of the channel according to a root sequence of the sequence of the third signal .

Abstract

本发明涉及下行信号的发送、接收方法以及发送端设备、接收端设备。发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息。发送包含所述第一信号、第二信号的帧。本发明实施例能够指示同步信号在时域上的位置信息，也支持单符号同步信号的发送。

Description

下行信号的发送、接收方法以及发送端设备、接收端设备
本申请要求于2016年08月11日提交国家知识产权局、申请号为201610658788.4、发明名称为“下行信号的发送、接收方法以及发送端设备、接收端设备”的专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及无线通信系统中的下行信号的发送和接收。
背景技术
随着移动互联网技术的快速发展以及4G技术的广泛应用，对通信容量的需求变得越来越大。现有的频带资源已无法满足通信容量的需求，因此高频通信成为未来通信技术如5G技术的重要研究方向。
在无线通信系统中，特别是在高频通信系统中，为了保证无线信号的广泛覆盖，需要采用波束成型技术。在高频通信中，一般采用较多的天线进行波束成型操作，从而获得较远的覆盖。波束成型包括模拟波束成型和数字波束成型，模拟波束成型相对于数字波束成型成本较低。
模拟波束成型技术相对于数字波束成型技术的不同点之一是，模拟波束成型技术在同一时间只能形成一个波束。因此为了使信息传输到不同的方向，模拟波束成型技术需要在不同的时间内，用不同的波束进行信息发送，这也就导致了同步信号必须在不同的时间在不同的波束上扫描式发送。相比现有长期演进(Long Term Evolution，LTE)系统的全向同步信号的发送方式，模拟波束成型技术可以实现更广的覆盖，但发送次数显著增多。模拟波束成型技术可以在一个子帧上多次发送波束，也可以在一个帧内的多个子帧上发送波束。无论是在一个子帧内多次发送波束，还是在一个帧内的多个子帧上发送波束，都无法获取一个子帧内的当前检测到的同步信号的符号序号，也不能获取到子帧号、帧号、波束ID(波束标识)、波束组ID(波束组标识)等同步信号的位置信息。
在现有通信系统中，如在LTE系统中，每个子帧内仅有一个同步信号，同步信号所在的符号是固定的，因此无需指示同步信号所在的符号序号。并且现有LTE系统中，每个帧内有两个同步信号，包括辅同步信号(Secondary synchronization signal，英文简称SSS)和主同步信号(Primary synchronization signal，英文简称PSS)。主同步信号PSS与辅同步信号SSS在时域上采用时分发送方式，因此PSS和SSS至少占用两个符号。
由此可见，在现有的通信系统中，如现有的LTE系统、LTE演进系统中，如果在一个子帧内发送多个同步信号，则无法区分同步信号所在的符号序号；如果在一个帧内的多个子帧上发送同步信号，则无法区分子帧号。并且在现有LTE系统、LTE演进系统等通信系统中，不同的同步信号如PSS、SSS至少占用两个符号，因此，现有通信系统不支持单符 号的同步信号的发送，从而导致了波束的扫描速度受限。
发明内容
本发明实施例提供了下行信号的发送、接收方法以及发送端设备、接收端设备，以指示信号在时域上的位置信息或信道的子载波间隔。
在第一方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息；
发送包含所述第一信号、第二信号的帧。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
所述发送端设备根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
所述发送端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
所述发送端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
所述发送端设备根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第二方面，本发明实施例提供了一种下行信号的接收方法，其特征在于，所述方法包括：
接收端设备接收包含第一信号、第二信号的帧；
获得所述第一信号、第二信号在频域和/或时域上的位置关系；
根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述获取所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
获得所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
所述接收端设备根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
所述接收端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第三方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔；
发送包含所述第一信号、第二信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔，包括：
所述发送端设备根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示信道的子载波间隔。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔，包括：
所述发送端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔，包括：
所述发送端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示信道的子载波间隔。
在一个示例中，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置 关系，指示信道的子载波间隔，包括：
所述发送端设备根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示信道的子载波间隔。
在第四方面，本发明实施例提供了一种下行信号的接收方法，所述方法包括：
接收端设备接收包含第一信号、第二信号的帧；
获得所述第一信号、第二信号在频域和/或时域上的位置关系；
根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔，具体为：
根据所述第一信号、第二信号在频域和/或时域上的相对位置关系，确定信道的子载波间隔。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔，包括：
所述接收端设备根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定信道的子载波间隔。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔，包括：
所述接收端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定信道的子载波间隔。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔，包括：
所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，确定信道的子载波间隔。
在一个示例中，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔，包括：
所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定信道的子载波间隔。
在第五方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备根据第一信号的序列，指示所述第一信号和/或第二信号在时域上的位置信息；
发送包含所述第一信号、第二信号的帧。
在一个示例中，所述发送端设备根据第一信号的序列，指示所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述发送端设备根据第一信号的序列的根序号，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一 个或多个。
在一个示例中，所述根序号取值相应地由所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号、小区标识组内编号中的一个或多个确定。
在第六方面，本发明实施例提供了一种下行信号的接收方法，所述方法包括：
接收端设备检测第一信号，获得所述第一信号的序列；
基于所述第一信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，接收端设备检测第一信号，获得所述第一信号的序列的根序号；
基于所述第一信号的序列的根序号，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述接收端设备检测第一信号，获得所述第一信号的根序号，包括：
所述接收端设备检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及所述第一信号的序列生成公式计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第七方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备根据第一信号的序列，指示信道的子载波间隔；
发送包含所述第一信号、第二信号和所述信道的帧。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述发送端设备根据第一信号的序列，指示信道的子载波间隔，具体为：
所述发送端设备根据第一信号的序列的根序号，指示信道的子载波间隔。
在第八方面，本发明实施例提供了一种下行信号的接收方法，所述方法包括：
接收端设备检测第一信号，获得所述第一信号的序列；
基于所述第一信号的序列，确定信道的子载波间隔。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，接收端设备检测第一信号，获得所述第一信号的序列的根序号；
基于所述第一信号的序列的根序号，确定信道的子载波间隔。
在一个示例中，所述接收端设备检测第一信号，获得所述第一信号的序列，还包括：
所述接收端设备检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及第一信号的序列生成公式，计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第九方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送包含所述第一信号、第二信号、第三信号的帧。
在一个示例中，所述方法还包括：所述第三信号的序列根据所述第一信号和/或第二信号在时域上的位置信息确定，并通过所述小区标识进行加扰。
在一个示例中，所述方法还包括：所述第三信号的序列根据所述小区标识确定，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第 一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个；
在第十方面，本发明实施例提供了一种下行信号的接收方法，所述方法包括：
接收端设备接收包含第一信号、第二信号、第三信号的帧；
检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述方法还包括：所述接收端设备检测第一信号和/或第二信号，获取所述小区标识；
根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列；
根据所述第三信号的序列确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第十一方面，本发明实施例提供了一种下行信号的发送方法，所述方法包括：
发送端设备通过第三信号指示信道的子载波间隔，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送包含所述第三信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述方法还包括：
所述第三信号的序列根据所述第一信号和/或第二信号在时域上的位置信息确定，并通过小区标识进行加扰。
在一个示例中，所述方法还包括：
所述第三信号的序列根据小区标识确定，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在第十二方面，本发明实施例提供了一种下行信号的接收方法，所述方法包括：
接收端设备接收包含第一信号、第二信号、第三信号的帧；
检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
根据所述第三信号的序列，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述方法还包括：
所述接收端设备检测第一信号和/或第二信号，获取所述小区标识；
根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列；
根据所述第三信号的序列确定信道的子载波间隔。
在一个示例中，所述根据所述第三信号的序列确定信道的子载波间隔，包括：
对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定信道的子载波间隔。
在第十三方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息；
发送单元，用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述指示单元还用于根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元还用于根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元还用于根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元还用于根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第十四方面，本发明实施例提供了一种接收端设备，包括：
接收单元，用于接收包含第一信号、第二信号的帧；
获取单元，用于获取所述第一信号、第二信号在频域和/或时域上的位置关系；
确定单元，用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述获取所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
获得所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的资源块与所述第 一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第十五方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔；
发送单元，用于发送包含所述第一信号、第二信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述指示单元具体用于：根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元具体用于，根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示信道的子载波间隔。
在第十六方面，本发明实施例提供了一种接收端设备，包括：
接收单元，用于接收包含第一信号、第二信号的帧；
获取单元，用于获取所述第一信号、第二信号在频域和/或时域上的位置关系；
确定单元，用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述确定单元具体用于，根据所述第一信号、第二信号在频域和/或时域上的相对位置关系，确定信道的子载波间隔。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定信道的子载波间隔。
在第十七方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于根据第一信号的序列，指示所述第一信号和/或第二信号在时域上的位置信息；
发送单元，用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述指示单元具体用于，根据第一信号的序列的根序号，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在一个示例中，所述根序号取值相应地由所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号、小区标识组内编号中的一个或多个确定。
在第十八方面，本发明实施例提供了一种接收端设备，包括：
检测单元，用于检测第一信号，获得所述第一信号的序列；
确定单元，用于基于所述第一信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元具体用于检测第一信号，获得所述第一信号的序列的根序号；所述确定单元具体用于基于所述第一信号的序列的根序号，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元具体用于，检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及所述第一信号的序列生成公式计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第十九方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于根据第一信号的序列，指示信道的子载波间隔；
发送单元，用于发送包含所述第一信号、第二信号和所述信道的帧。其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述指示单元具体用于，根据第一信号的序列的根序号，指示信道的子载波间隔。
在第二十方面，本发明实施例提供了一种接收端设备，包括：
检测单元，用于检测第一信号，获得所述第一信号的序列；
确定单元，用于基于所述第一信号的序列，确定信道的子载波间隔。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述检测单元具体用于基于所述第一信号的序列的根序号，确定信道的子载波间隔。
在一个示例中，所述检测单元还用于检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及第一信号的序列生成公式，计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第二十一方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送单元，用于发送包含所述第一信号、第二信号、第三信号的帧。
在一个示例中，所述发送端设备还包括确定单元，所述确定单元用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过所述小区标识进行加扰。
在一个示例中，所述发送端设备还包括确定单元，所述确定单元用于列根据所述小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第二十二方面，本发明实施例提供了一种接收端设备，包括：
接收单元，用于接收包含第一信号、第二信号、第三信号的帧；
检测单元，用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
确定单元，用于根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元具体用于，检测第一信号和/或第二信号，获取所述小区标识；所确定单元具体用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列；所述确定单元还用于，根据所述第三信号的序列的根序号确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第二十三方面，本发明实施例提供了一种发送端设备，包括：
指示单元，用于通过第三信号指示信道的子载波间隔，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送单元，用于发送包含所述第三信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述发送端设备还包括确定单元，所述确定单元用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过小区标识进行加扰。
在一个示例中，所述发送端设备还包括确定单元，所述确定单元用于根据小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在第二十四方面，本发明实施例提供了一种接收端设备，包括：
接收单元，用于接收包含第一信号、第二信号、第三信号的帧；
检测单元，用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号 和/或第二信号在时域上的位置信息生成；
确定单元，用于根据所述第三信号的序列，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述检测单元还用于检测第一信号和/或第二信号，获取所述小区标识；所述确定单元还用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定信道的子载波间隔。
在一个示例中，所述确定单元还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定信道的子载波间隔。
在第二十五方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息；
发送器，用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述处理器还用于根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器还用于根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器还用于根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器还用于根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第二十六方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号、第二信号的帧；
处理器，用于获取所述第一信号、第二信号在频域和/或时域上的位置关系，根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述获取所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
获得所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第二十七方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔；
发送器，用于发送包含所述第一信号、第二信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述处理器具体用于：根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示信道的子载波间隔。
在第二十八方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号、第二信号的帧；
处理器，用于获取所述第一信号、第二信号在频域和/或时域上的位置关系，确定单元，用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述处理器具体用于，根据所述第一信号、第二信号在频域和/或时域上的相对位置关系，确定信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，确定信道的子载波间隔。
在一个示例中，所述处理器具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定信道的子载波间隔。
在第二十九方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于根据第一信号的序列，指示所述第一信号和/或第二信号在时域上的位置信息；
发送器，用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述处理器具体用于，根据第一信号的序列的根序号，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在一个示例中，所述根序号取值相应地由所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号、小区标识组内编号中的一个或多个确定。
在第三十方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号的帧；
处理器，用于检测所述第一信号，获得所述第一信号的序列，基于所述第一信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于检测第一信号，获得所述第一信号的序列的根序号，基于所述第一信号的序列的根序号，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于，检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及所述第一信号的序列生成公式计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第三十一方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于根据第一信号的序列，指示信道的子载波间隔；
发送器，用于发送包含所述第一信号、第二信号和所述信道的帧。其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述处理器具体用于，根据第一信号的序列的根序号，指示信道的子载波间隔。
在第三十二方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号的帧；
处理器，用于检测所述第一信号，获得所述第一信号的序列，基于所述第一信号的序列，确定信道的子载波间隔。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述处理器具体用于基于所述第一信号的序列的根序号，确定信道的子载波间隔。
在一个示例中，所述处理器还用于检测第一信号，获得所述第一信号的序列，将所 述检测得到的第一信号序列，与根据所述根序号及第一信号的序列生成公式，计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
在第三十三方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送器，用于发送包含所述第一信号、第二信号、第三信号的帧。
在一个示例中，所述处理器还用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过所述小区标识进行加扰。
在一个示例中，所述处理器还用于列根据所述小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第三十四方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号、第二信号、第三信号的帧；
处理器，用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成，根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器具体用于，检测第一信号和/或第二信号，获取所述小区标识；所确定单元具体用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述处理器还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列；所述确定单元还用于，根据所述第三信号的序列的根序号确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：
所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在第三十五方面，本发明实施例提供了一种发送端设备，包括：
处理器，用于通过第三信号指示信道的子载波间隔，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送器，用于发送包含所述第三信号和所述信道的帧；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述处理器还用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过小区标识进行加扰。
在一个示例中，所述处理器还用于根据小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在第三十六方面，本发明实施例提供了一种接收端设备，包括：
接收器，用于接收包含第一信号、第二信号、第三信号的帧；
处理器，用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/ 或第二信号在时域上的位置信息生成，根据所述第三信号的序列，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述处理器还用于检测第一信号和/或第二信号，获取所述小区标识；所述确定单元还用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定信道的子载波间隔。
在一个示例中，所述处理器还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定信道的子载波间隔。
本发明实施例通过同步信号在时域或者频域上的相对位置关系，指示同步信号在时域上的位置，以及信道的子载波间隔。此外，本发明实施例通过同步序列的根序号，指示同步信号在时域上的位置，以及信道的子载波间隔。以及，本发明实施例还能够通过第三信号，指示同步信号在时域上的位置。因此本发明实施例能够区分同步信号所在的符号序号，以及子帧号。并且本发明实施例支持单符号同步信号的发送，增大了波束的扫描速度。
附图说明
图1为本发明的一种应用场景示意图；
图2为本发明实施例一提供的下行数据的发送和接收方法示意图；
图3为本发明实施例一提供的一个子帧内多个符号的PSS、SSS结构示意图；
图4为本发明实施例二提供的下行数据的发送和接收方法示意图；
图5为本发明实施例三提供的下行数据的发送和接收方法示意图；
图6为本发明实施例三提供的一个子帧内多个符号的PSS、SSS结构示意图；
图7为本发明实施例四提供的下行数据的发送和接收方法示意图；
图8为本发明实施例五提供的下行数据的方法和接收方法示意图；
图9为本发明实施例五提供的一个帧内多个符号的PSS、SSS结构示意图；
图10为本发明实施例六提供的下行数据的发送和接收方法示意图；
图11为本发明实施例提供的第一种发送端设备示意图；
图12为本发明实施例提供的第一种接收端设备示意图；
图13为本发明实施例提供的第二种发送端设备示意图；
图14本发明实施例提供的第二种接收端设备示意图；
图15本发明实施例提供的第三种发送端设备示意图；
图16本发明实施例提供的第三种接收端设备示意图；
图17本发明实施例提供的第四种发送端设备示意图；
图18本发明实施例提供的第四种接收端设备示意图；
图19本发明实施例提供的第五种发送端设备示意图；
图20本发明实施例提供的第五种接收端设备示意图；
图21本发明实施例提供的第六种发送端设备示意图；
图22本发明实施例提供的第六种接收端设备示意图。
具体实施方式
下面将结合附图，对本发明实施例中的技术方案进行清楚、完整地描述。
如图1所示，发送端设备根据第一信号和/或第二信号在频域上的位置关系，指示第一信号和/或第二信号在时域上的位置信息。例如，发送端设备根据该第二信号的最低子载波序号与该第一信号的最高子载波序号的差值，指示第一信号、第二信号的符号序号和/或子帧号。接收端设备接收包含第一信号、第二信号的帧，获得该第一信号、第二信号在频域和/或时域上的位置关系。根据该第一信号、第二信号在频域和/或时域上的位置关系，确定该第一信号和/或第二信号在时域上的位置信息。例如，接收端设备根据第二信号的最低子载波序号与第一信号的最高子载波序号的差值，得到该第一信号、第二信号的符号序号和/或子帧号。
或者，发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔，其中，所述信道包括广播信道和/或共享信道和/或控制信道。例如，发送端设备根据该第二信号的最低子载波序号与该第一信号的最高子载波序号的差值，指示信道的子载波间隔。接收端设备接收包含第一信号、第二信号的帧，获得该第一信号、第二信号在频域和/或时域上的位置关系。根据该第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔。例如，接收端设备根据第二信号的最低子载波序号与第一信号的最高子载波序号的差值，得到信道的子载波间隔。
或者，发送端设备根据第一信号序列，指示该第一信号和/或第二信号在时域上的位置信息。例如，发送端设备根据第一信号的根序号指示第一信号、第二信号的符号序号，则该根序号的取值由符号序号确定。接收端设备接收包含该第一信号、第二信号的帧，检测该第一信号，获得该第一信号的序列。接收端设备根据该第一信号的序列，确定该第一信号和/或第二信号在时域上的位置信息。例如，接收端设备获得第一信号的序列的根序号。基于第一信号的序列的根序号，确定第一信号和/或第二信号在时域上的位置信息。
或者，发送端设备根据第一信号序列的序列，指示信道的子载波间隔。该信道包括广播信道和/或共享信道和/或控制信道。接收端设备接收包含该第一信号、第二信号的帧，检测该第一信号，获得该第一信号的序列。接收端设备根据该第一信号的序列，确定信道的子载波间隔。
或者，发送端设备通过第三信号指示第一信号和/或第二信号在时域上的位置信息。该第三信号的序列由该第一信号和/或第二信号在时域上的位置信息生成。接收端设备接收包含该第一信号、第二信号、第三信号的帧。检测该第三信号的序列。根据该第三信号的序列，确定该第一信号和/或第二信号在时域上的位置信息。
或者，发送端设备通过第三信号指示信道的子载波间隔，发送包含该第三信号和该信道的帧。其中，该信道包括广播信道和/或共享信道和/或控制信道。接收端设备接收包含第一信号、第二信号、第三信号的帧，检测该第三信号的序列，根据该第三信号的序列，确定信道的子载波间隔。
本发明实施例适用于长期演进(Long Term Evolut ion,简称LTE)系统、LTE系统后续的演进系统、5G系统等，或其他采用各种无线接入技术的无线通信系统，例如wifi、wimax、3gPP相关的蜂窝系统等。
此外，本发明实施例的发送端设备可以是基站、中继、接入设备等，接收端设备可以是用户设备(User Equipment,简称UE)、移动台(Mobile station,简称MS)、终端 (Terminal)等。并且发送端设备也可以是集成在一个设备中的收发设备TRP，接收端设备也可以是集成在一个设备中的收发设备TRP。下面仅以发送端设备是基站，接收端设备是终端为例，进行阐述。
实施例一
下面结合附图2、附图3详细阐述本发明实施例一提供的下行数据的发送和接收方法。
步骤201，基站根据第一信号即主同步信号PSS、第二信号即辅同步信号SSS在频域上的相对位置关系，指示该第一信号、第二信号在时域上的位置信息。
需要说明的是，基站也可以根据第一信号、第二信号在时域上的位置关系，指示该第一信号和/或第二信号在时域上的位置信息。为方便描述，本发明实施例仅以基站根据第一信号、第二信号在频域上的位置关系，指示第一信号、第二信号在时域上的位置信息为例，进行阐述。
在一个示例中，基站根据PSS与SSS在频域上的相对位置关系，指示第一信号、第二信号的符号序号和/或子帧号。例如，基站根据PSS最低子载波序号与SSS最高子载波序号的差值，指示PSS信号、SSS信号的符号序号和/或子帧号，参见下表1和表3。又如，基站根据PSS最低资源块RB序号与SSS最高资源块RB序号的差值，指示PSS信号、SSS信号的符号序号和/或子帧号，参见下表2和表4。
如图3所示，基站在子帧1内的多个符号上发送PSS和SSS，且PSS和SSS在频域上频分。例如，一个子帧包含12个符号，则基站在子帧1的符号0至符号11的全部符合或者部分符号(如图3所示的符号0至符号3)上，发送主同步信号PSS和辅同步信号SSS，且该主同步信号PSS和相同波束下的该辅同步信号SSS映射在一个符号上。例如，映射在同一个OFDM符号上。
需要说明的是，在子帧1上发送多个符号仅是一个例子，本发明实施例并未对具体子帧作出限定。
具体地，对于子帧1，在时域上，每个主同步信号PSS和相同波束下的辅同步信号SSS，映射在一个符号上。在频域上，每个主同步信号PSS映射在6个资源块(resource block，RB)上。例如，主同步信号PSS映射在频带中心的6个RB上，并且该主同步信号PSS映射在该6个RB中除最高序号的5个子载波和最低序号的5个子载波之外的其它子载波上。例如，每个RB包含12个子载波，6个RB共包含72个子载波，则主同步信号PSS映射在除最高序号的5个子载波和最低序号的5个子载波之外的其它连续62个子载波上。在频域上，辅同步信号SSS映射在除PSS所占用的6个RB之外的其它连续的6个RB上，并且辅同步信号SSS同样映射在该6个RB中除最高序号的5个子载波和最低序号的5个子载波之外的其它62个子载波上。在时域上，每个辅同步信号SSS和相同波束下的主同步信号PSS，映射在一个符号上。
由图3可知，每个主同步信号PSS所占用的子载波序号相同，而辅同步信号SSS所占用的子载波序号随着其所占用的符号序号的增大而增大。此外，PSS所占用的子载波序号也可以随着其所占用的符号序号的增大而减小(图3未示出)。此种情况下，SSS最高子载波序号小于PSS最低子载波序号。下面仅结合图3的例子做阐述。
在一个示例中，基站通过SSS的最低子载波序号与PSS的最高子载波序号的差值， 指示SSS、PSS的符号序号，参见下表1。
Figure PCTCN2017087738-appb-000001
表1
表1中，a表示PSS映射的最高子载波序号。如表1所示，随着符号序号的增加，SSS映射的最低子载波序号与PSS映射的最高子载波序号的差值逐渐增加。
由表1可知，通过SSS映射的最低子载波序号与PSS映射的最高子载波序号的差值，能够得到PSS和SSS的符号序号。
需要说明的是，表1是以SSS映射的最低子载波序号与PSS映射的最高子载波序号的最小差值是11为例。实际上，SSS映射的最低子载波序号与PSS映射的最高子载波序号的差值可以是大于等于10的任意整数。原因是，PSS和SSS映射在除最高序号的5个子载波和最低序号的5个子载波之外的子载波上。
需要说明的是，本发明实施例以基站根据SSS占用的最低子载波的序号与PSS占用的最高子载波的序号之间的差值，指示PSS和/或SSS在时域上的位置信息。本领域技术人员可以理解，本发明实施例不限于此，例如，基站也可以通过SSS占用的次低子载波的序号与PSS占用的次高子载波的序号之间的差值，指示PSS和/或SSS在时域上的位置信息。因此，本发明实施例的基站根据第二信号SSS占用的子载波序号与第一信号SSS占用的相应子载波序号差值，指示该第一信号和/或第二信号在时域上的位置信息。此外，本发明实施例的基站不限于根据子载波序号的差值指示该第一信号和/或第二信号在时域上的位置信息。基站也可以根据第二信号占用的子载波频率与第一信号占用的相应子载波频 率的差值，指示该第一信号和/或第二信号在时域上的位置信息。
由前文可知，本发明实施例的基站不限于根据第一信号、第二信号在频域上的位置关系，指示第一信号和/或第二信号在时域上的位置信息。基站也可以根据第一信号、第二信号在时域上的位置关系，指示第一信号和/或第二信号在时域上的位置信息。例如，基站根据第二信号占用的符号与第一信号占用的符号的时间差值或符号序号差值，指示该第一信号和/或第二信号在时域上的位置信息。
上表1是以通过SSS映射的最低子载波序号与PSS映射的最高子载波序号的差值，指示PSS、SSS的符号序号，即子载波级调整粒度。实际上，也可以通过SSS映射的最低资源块RB序号与PSS映射的最高资源块RB序号的差值，指示PSS、SSS的符号序号，即采用RB级调整粒度，详见下表2。
Figure PCTCN2017087738-appb-000002
表2
表2中，b表示PSS映射的最高RB序号。如表2所示，随着符号序号的增加，SSS映射的最低RB序号与PSS映射的最高RB序号的差值逐渐增加。
需要说明的是，表2是以SSS映射的最低RB序号与PSS映射的最高RB序号的差值是1为例。实际上，SSS映射的最低RB序号与PSS映射的最高RB序号的差值，可以是大于等于1的任意整数。
由前文可知，基站在一个子帧，如子帧1的多个符号上发送主同步信号PSS和辅同 步信号SSS，根据该主同步信号PSS和辅同步信号SSS在频域上的位置关系，指示PSS和SSS的符号序号。此外，基站也可以在一个帧的多个子帧上发送PSS和SSS，并根据PSS和SSS在频域上的位置关系，指示PSS和SSS的子帧号和符号序号。并且基站可以在一个帧的全部子帧的全部符号上发送PSS和SSS，也可以在一个帧的部分子帧的全部符号上发送PSS和SSS，还可以在一个帧的部分子帧的部分符号上发送PSS和SSS。下面以在一个帧的部分子帧——子帧0、子帧1的部分符号——符号0-符号5上，发送同步信号为例，阐述基站在一个帧的多个子帧上发送多个符号，以指示PSS和SSS的符号序号。
Figure PCTCN2017087738-appb-000003
表3
表3中，a表示PSS映射的最高子载波序号；且在表3中的子载波和符号序号列表中，00表示第0个子帧的第0个符号，01表示第0个子帧的第1个符号，02表示第0个子帧的第2个符号，03表示第0个子帧的第3个符号，04表示第0个子帧的第4个符号，05表示第0个子帧的第5个符号，10表示第1个子帧的第0个符号，11表示第1个子帧的第1个符号，12表示第1个子帧的第2个符号，13表示第1个子帧的第3个符号，14表示第1个子帧的第4个符号，15表示第1个子帧的第5个符号。
由表3可知，通过SSS的最低子载波序号与PSS的最高子载波序号的差值，能够指示PSS和SSS的子帧号和符号序号。
需要说明的是，表3是以SSS最低子载波序号与PSS最高子载波序号的最小差值是11为例。实际上，SSS最低子载波序号与PSS最高子载波序号的差值可以是大于等于10 的任意整数。原因是，PSS和SSS映射在除最高序号的5个子载波和最低序号的5个子载波之外的子载波上。
上表3是以通过SSS的最低子载波序号与PSS的最高子载波序号的差值，指示PSS、SSS的子帧号和符号序号为例，即子载波级调整粒度。实际上，也可以通过SSS的最低资源块RB序号与PSS的最高资源块RB序号的差值，指示PSS、SSS的子帧号和符号序号，即采用RB级调整粒度，参见下表4。
Figure PCTCN2017087738-appb-000004
表4
表4中，b表示PSS映射的最高RB序号；且在表4中的子载波和符号序号列表中，00表示第0个子帧的第0个符号，01表示第0个子帧的第1个符号，02表示第0个子帧的第2个符号，03表示第0个子帧的第3个符号，04表示第0个子帧的第4个符号，05表示第0个子帧的第5个符号，10表示第1个子帧的第0个符号，11表示第1个子帧的第1个符号，12表示第1个子帧的第2个符号，13表示第1个子帧的第3个符号，14表示第1个子帧的第4个符号，15表示第1个子帧的第5个符号。
需要说明的是，表4是以SSS映射的最低RB序号与PSS映射的最高RB序号的差值是1为例，实际上，SSS映射的最低RB序号与PSS映射的最高RB序号的差值可以是大于等于1的任意整数。
需要说明的是，本发明实施例以基站根据SSS占用的最低资源块RB的序号与PSS占用的最高资源块RB的序号之间的差值，指示PSS和/或SSS在时域上的位置信息。本领域 技术人员可以理解，本发明实施例不限于此，例如，基站也可以通过SSS占用的次低资源块RB的序号与PSS占用的次高资源块RB的序号之间的差值，指示PSS和/或SSS在时域上的位置信息。因此，本发明实施例的基站根据第二信号SSS占用的资源块RB序号与第一信号SSS占用的相应资源块RB序号差值，指示该第一信号和/或第二信号在时域上的位置信息。此外，本发明实施例的基站不限于根据资源块RB序号的差值指示该第一信号和/或第二信号在时域上的位置信息。基站也可以根据第二信号占用的资源块RB频率与第一信号占用的相应资源块RB频率的差值，指示该第一信号和/或第二信号在时域上的位置信息。
由前文可知，本发明实施例的基站不限于根据第一信号、第二信号在频域上的位置关系，指示第一信号和/或第二信号在时域上的位置信息。基站也可以根据第一信号、第二信号在时域上的位置关系，指示第一信号和/或第二信号在时域上的位置信息。例如，基站根据第二信号占用的符号与第一信号占用的符号的时间差值或符号序号差值，指示该第一信号和/或第二信号在时域上的位置信息。
由前文可知，基站可以在一个子帧的多个符号上发送主同步信号PSS和辅同步信号SSS，根据主同步信号PSS和辅同步信号SSS在频域上的位置关系，指示PSS和SSS的符号序号。基站也可以在一个帧的多个子帧上发送PSS和SSS，并根据PSS和SSS在频域上的位置关系，指示PSS和SSS的子帧号和符号序号。此外，基站还可以在多个帧上发送PSS和SSS，并根据PSS和SSS在频域上的位置关系，指示PSS和SSS的帧号和子帧号、符号序号。并且基站还可以通过PSS和SSS在频域上的位置关系，指示波束组号、波束号。也就是说，基站通过同步信号在频域上的位置关系，例如，SSS最低子载波序号和PSS最高子载波序号的差值，指示同步信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
此外，本发明实施例不限于根据SSS最低子载波序号(或SSS最低RB序号)与PSS最高子载波序号(或PSS最高RB序号)的差值，确定同步信号在时域上的位置信息。例如，本发明实施例可以通过PSS与SSS在同一符号上的相邻子载波的梳状频分映射的位置关系，确定主同步信号PSS、辅同步信号SSS在时域上的位置信息。该梳状频分映射是指：在时域上PSS和SSS映射在一个符号上，在频域上PSS和SSS交叉映射在各子载波上。例如，在时域上，PSS、SSS映射在符号1上，在频域上，PSS映射在子载波0、2、4、6、8……，SSS映射在子载波1、3、5、7……上。
下面继续阐述基站如何指示物理小区标识(Physical Cell Identifier，英文简称PCI)。
物理小区标识PCI是终端用以区分不同小区的无线信号。PCI由小区ID组内编号和小区ID示出。基站通过PSS序列指示小区ID组内编号(小区标识组内编号)，通过SSS序列集合1或者SSS序列集合2中的一个序列集合，指示小区ID(小区标识)；其中，该小区ID可以是物理小区ID也可以是虚拟小区ID还可以是超小区ID。
例如，PSS序列有3种，基站通过该3种PSS序列分别指示小区ID组内编号0、1、2。SSS序列集合1和SSS序列集合2分别包含168种不同的序列，基站通过SSS序列集合1或SSS序列集合2的该168种不同序列，分别指示小区ID 0-167。
步骤202，终端接收包含主同步信号PSS和辅同步信号SSS的帧，对该PSS进行盲检， 获得该PSS所映射的各子载波的频率，包括PSS所映射的最高子载波的频率。
进一步地，终端通过检测PSS，得到PSS序列，进而确定小区ID组内编号。
步骤203，终端检测辅同步信号SSS，获得SSS所映射的各子载波的频率，包括PSS所映射的最高子载波的频率。进一步地，终端通过检测SSS，得到SSS序列，进而确定小区ID。终端根据该小区ID以及根据小区ID组内编号(由步骤202得到)，进而确定物理小区标识PCI。此后，终端可以根据PCI确定通信过程中的信号和信道的加扰方式。
步骤204，终端基于SSS映射的子载波的频率以及PSS映射的子载波的频率，确定PSS、SSS在时域上的位置信息。
具体地，终端根据SSS的最低子载波的频率与PSS最高子载波的频率之间的差值，得到SSS最低子载波序号与PSS最高子载波序号的差值，将SSS的最低子载波序号与PSS的最高子载波序号)做差值，并通过查表的方式，确定PSS、SSS在时域上的位置信息。例如，终端根据计算得到的差值，并通过查表确定SSS、PSS映射的符号序号。
需要说明的是，上述步骤202-204是以终端根据第一信号PSS、第二信号SSS在频域上的位置关系，例如，根据SSS最低子载波序号与PSS最高子载波序号的差值，确定第一信号和/或第二信号在时域上的位置信息。实际上，本发明实施例并不限于此，本发明实施例的终端还可以通过PSS、SSS在时域上的位置关系，确定第一信号和/或第二信号在时域上的位置信息，具体实现方法与步骤202-204相同，在此不再赘述。
需要说明的是，上文是以基站在一个子帧内的多个符号上发送PSS、SSS，终端检测该子帧上的多个符号，进而确定PSS、SSS的符号序号；以及基站在一个帧内的多个子帧上发送PSS、SSS，进而确定发送PSS、SSS的子帧号和符号序号为例，进行阐述。实际上，本发明实施例并不限于此。本领域技术人员可以理解的是，当基站通过PSS和SSS的相对频域位置关系，确定帧号和/或波束号和/或波束组号时，终端也能够通过检测到的PSS和SSS的相对频域位置关系，进而确定相应帧号和/或波束号和/或波束组号，方法与确定符号序号方法相同，在此不再赘述。
实施例二
在现有的通信系统中，例如，在LTE系统中，子载波间隔是固定的，然而，对于未来的通信系统，例如，对于5G通信系统，子载波间隔很可能是不固定的。对于不固定的子载波间隔，现有技术并未解决基站如何指示子载波间隔，终端如何确定子载波间隔的问题，本发明实施例二提供了一种解决该问题的方法。
下面结合附图4详细阐述本发明实施例二提供的下行数据发送方法和接收方法。
步骤401，基站根据第一信号即主同步信号PSS、第二信号即辅同步信号SSS在频域上的位置关系，指示信道的子载波间隔；其中，该信道包括广播信道和/或共享信道和/或控制信道。
需要说明的是，基站也可以根据第一信号PSS、第二信号SSS在时域上的位置关系，指示信道的子载波间隔。为方便描述，本发明实施例仅以基站根据第一信号、第二信号在频域上的位置关系，指示信道的子载波间隔为例，进行阐述。
在一个示例中，基站根据PSS与SSS在频域上的相对位置关系，指示信道的子载波间隔。例如，基站根据PSS最低子载波序号与SSS最高子载波序号的差值，指示信道的子 载波间隔，参见下表5。又如，基站根据PSS最低资源块RB序号与SSS最高资源块RB序号的差值，指示信道的子载波间隔，参见下表6。
Figure PCTCN2017087738-appb-000005
表5
表5中，a表示PSS映射的最高子载波序号。本领域技术人员可以理解，子载波间隔具体数值仅是一个例子，本发明实施例并未对子载波间隔的具体数值作出限定，例如子载波间隔类型n表示(15*2n)KHz子载波间隔。
由表5可知，通过SSS的最低子载波序号与PSS的最高子载波序号的差值，能够得到信道的子载波间隔。
需要说明的是，表5是以SSS映射的最低子载波序号与PSS映射的最高子载波序号的最小差值是11为例。实际上，SSS映射的最低子载波序号与PSS映射的最高子载波序号的差值可以是大于等于10的任意整数。
需要说明的是，本发明实施例以基站根据SSS占用的最低子载波的序号与PSS占用的最高子载波的序号之间的差值，指示信道的子载波间隔。本领域技术人员可以理解，本发明实施例不限于此，例如，基站也可以通过SSS占用的次低子载波的序号与PSS占用的次高子载波的序号之间的差值，指示信道的子载波间隔。因此，本发明实施例的基站根据第二信号SSS占用的子载波序号与第一信号SSS占用的相应子载波序号的差值，指示信道的子载波间隔。此外，本发明实施例的基站不限于根据子载波序号的差值指示该信道的子载波间隔。基站也可以根据第二信号占用的子载波频率与第一信号占用的相应子载波频率 的差值，指示信道的子载波间隔。
由前文可知，本发明实施例的基站不限于根据第一信号、第二信号在频域上的位置关系，指示信道的子载波间隔。基站也可以根据第一信号、第二信号在时域上的位置关系，指示信道的子载波间隔。例如，基站根据第二信号占用的符号与第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
上表5是以通过SSS的最低子载波序号与PSS的最高子载波序号的差值，指示信道的子载波间隔为例做出的阐述，即子载波级调整粒度。实际上，也可以通过SSS的最低资源块RB序号与PSS的最高资源块RB序号的差值，指示信道的子载波间隔，即采用RB级调整粒度，参见下表6。
Figure PCTCN2017087738-appb-000006
表6
表6中，b表示PSS映射的最高RB序号。本领域技术人员可以理解，表6子载波间隔具体数值仅是一个例子，本发明实施例并未对此作出限定。
需要说明的是，表6是以SSS映射的最低RB序号与PSS映射的最高RB序号的差值是1为例，实际上，SSS映射的最低RB序号与PSS映射的最高RB序号的差值可以是大于等于1的任意整数。
需要说明的是，本发明实施例以基站根据SSS占用的最低资源块RB的序号与PSS占用的最高资源块RB的序号之间的差值，指示信道的子载波间隔。本领域技术人员可以理 解，本发明实施例不限于此，例如，基站也可以通过SSS占用的次低资源块RB的序号与PSS占用的次高资源块RB的序号之间的差值，指示信道的子载波间隔。因此，本发明实施例的基站根据第二信号SSS占用的资源块RB序号与第一信号SSS占用的相应资源块RB序号差值，指示信道的子载波间隔。此外，本发明实施例的基站不限于根据资源块RB序号的差值指示该第一信号和/或第二信号在时域上的位置信息。基站也可以根据第二信号占用的资源块RB频率与第一信号占用的相应资源块RB频率的差值，指示信道的子载波间隔。
由前文可知，本发明实施例的基站不限于根据第一信号、第二信号在频域上的位置关系，指示信道的子载波间隔。基站也可以根据第一信号、第二信号在时域上的位置关系，指示信道的子载波间隔。例如，基站根据第二信号占用的符号与第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
此外，本发明实施例不限于根据SSS最低子载波序号(或SSS最低RB序号)与PSS最高子载波序号(或PSS最高RB序号)的差值，确定信道的子载波间隔。例如，本发明实施例也可以通过PSS与SSS在同一符号上的相邻子载波的梳状频分映射的位置关系，确定信道的子载波间隔。
步骤402，终端接收包含主同步信号PSS和辅同步信号SSS的帧，对PSS进行盲检，获得PSS所映射的各子载波的频率，包括PSS所映射的最高子载波的频率。
进一步地，终端通过检测PSS，得到PSS序列，进而确定小区ID组内编号。
步骤403，终端检测辅同步信号SSS，获得SSS所映射的各子载波的频率，包括PSS所映射的最高子载波的频率。
进一步地，终端通过检测SSS，得到SSS序列，进而确定小区ID。终端根据该小区ID以及根据小区ID组内编号(由步骤202得到)，进而确定物理小区标识PCI。此后，终端可以根据PCI确定通信过程中的信号和信道的加扰方式。
步骤404，终端基于SSS映射的子载波的频率以及PSS映射的子载波的频率，确定信道的子载波间隔。
具体地，终端根据SSS的最低子载波的频率与PSS最高子载波的频率之间的差值，得到SSS最低子载波序号与PSS最高子载波序号的差值，将SSS的最低子载波序号与PSS的最高子载波序号做差值，并通过查表的方式，确定信道的子载波间隔。例如，终端根据计算得到的差值，并通过查表5或表6，确定信道的子载波间隔。
实施例三
下面结合附图5、附图6详细阐述本发明实施例三提供的下行数据的发送和接收方法。
步骤501，基站根据第一信号即主同步信号PSS的序列，指示PSS、SSS在时域上的位置信息。
在一个示例中，基站根据PSS序列对应的根序号，指示PSS、SSS在时域上的位置信息。
进一步地，PSS、SSS映射在同一符号上，例如映射到OFDM符号上。
具体地，基站可以通过一个子帧的全部符号或者部分符号发送PSS和SSS。例如，基站通过子帧1的全部符号，包括符号0-符号11发送PSS和SSS，又如基站通过子帧1的部分符号，包括符号0-符号3发送PSS和SSS(如图6所示)。基站也可以通过多个子帧 的全部或者部分符号发送PSS和SSS。
若基站通过一个子帧的k个符号发送PSS和SSS，假设小区ID组内编号为3，则PSS的序列有3k个，例如，k＝12时，则PSS序列总共有36种。下面以PSS序列有36种为例，进行阐述。
根序号与PSS序列一一相对应，也就是说，一个PSS序列对应一个根序号，PSS序列的数量与根序号数量相同，例如有36个序列，就会有36个根序号。由于每个PSS映射在62个子载波上，因此每个PSS序列有62个元素。
PSS序列的一个例子为：
Figure PCTCN2017087738-appb-000007
其中，n为序列元素编号，u为根序号。由公式(1)可知，每个根序号对应一个PSS序列，每个PSS序列包含62个元素。
当基站通过一个子帧的全部符号发送PSS、SSS时，k＝12，根序号u共有36个值，该36个根序号可用于指示3个小区ID组内编号和12个符号序号。参见下表7。
小区ID组内编号 符号序号 根序号u
0 0 0
0 1 1
0 2 2
0 3 3
0 4 4
0 5 5
0 6 6
0 7 7
0 8 8
0 9 9
0 10 10
0 11 11
1 0 12
1 1 13
1 2 14
1 3 15
1 4 16
1 5 17
1 6 18
1 7 19
1 8 20
1 9 21
1 10 22
1 11 23
2 0 24
2 1 25
2 2 26
2 3 27
2 4 28
2 5 29
2 6 30
2 7 31
2 8 32
2 9 33
2 10 34
2 11 35
表7
表7中，根序号取值从0-35，分别用于指示小区ID组内编号和符号序号。
需要说明的是，根序号u取值并不限于36个，其数目由小区ID组内编号数量以及需要发送同步信号的符号序号决定，表7中的数值仅是一个例子。
此外，根序号u不限于指示符号序号和小区ID组内编号。例如，根序号u可以仅指示符号序号，参见下表8，此种情况下可以由主消息块(Master Information Block，英文简称MIB)指示小区ID组内编号(下文将会详述)。根序号u也可以指示符号序号、子帧号、帧号、波束号、波束组号中的一个或多个，在此不再赘述。
符号序号 根序号u
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
11 11
表8
需要说明的是，基站可以通过根序号u指示全部小区ID组内编号(参见表7)，也可以不指示小区ID组内编号(参见表8)，还可以仅指示部分小区ID组内编号。例如，由根序号u指示部分小区ID组内编号，由MIB指示其他小区ID组内编号。同样，也可以仅由MIB指示小区ID组内编号，而不再由根序号u指示小区ID组内编号(如表8)。
若通过MIB指示小区ID组内编号，且小区ID组内编号有3个时，则MIB为00时，指示小区ID组内编号为0，MIB为01时指示小区ID组内编号为1，MIB为10时指示小区ID组内编号为2。
进一步地，为了提高信号传输的可靠性，基站采用小区ID组内编号对MIB导频，且MIB导频的初始化值为：
Figure PCTCN2017087738-appb-000008
其中，
Figure PCTCN2017087738-appb-000009
为小区ID组内编号，
Figure PCTCN2017087738-appb-000010
Figure PCTCN2017087738-appb-000011
ns为时隙编号。
下面阐述基站如何指示物理小区标识PCI。
PCI用以区分不同小区，其由小区ID组内编号和小区ID示出。由上表7可知，基站可以通过根序号u和/或主消息块MIB指示小区ID组内编号；基站通过SSS序列集合1或SSS序列集合2中的一个序列集合，指示小区ID。
步骤502，终端接收包含主同步信号PSS和辅同步信号SSS的帧，对PSS进行盲检，获得PSS序列的根序号。
具体地，终端将表7中的根序号u取值0-35分别代入上述公式(1)，计算得到各根序号对应的PSS序列(包含62个元素)。终端将该计算得到的该PSS序列与其通过盲检获得的PSS序列进行相关性检测，得到该根序号u取值0-35中相关性最强的PSS序列所对应的根序号，则该根序号即为接收到的PSS序列的根序号。
步骤503，终端根据PSS序列的根序号，并通过查表的方式，得到PSS、SSS在时域上的位置信息。例如，通过查询上表7，得到小区ID组内编号和符号序号。
需要说明的是，基站可以通过根序号u指示小区ID组内编号和符号序号。基站也可以通过根序号u仅指示符号序号，并通过PSS序列指示小区ID组内编号。此种情况下，终端通过查询上表8得到相应符号序号，并通过该根序号对应的PSS序列确定小区ID组内编号。
此外，基站也可以通过PSS序列的根序号u指示子帧号、帧号、波束号、波束组号中的一个或多个。此种情况下，终端通过查询相应表项，获取相应的子帧号和/或帧号和/或波束号和/或波束组号，在此不再赘述。
步骤504，终端检测辅同步信号SSS，通过SSS确定小区ID，进而通过小区ID和小区ID组内编号(由步骤503得到)确定物理小区标识PCI。
实施例四
在现有的通信系统中，例如，在LTE系统中，子载波间隔是固定的，然而，对于未来的通信系统，例如，对于5G通信系统，子载波间隔很可能是不固定的。对于不固定的子载波间隔，现有技术并未解决基站如何指示子载波间隔，终端如何确定子载波间隔的问题，本发明实施例二提供了一种解决该问题的方法。
下面结合附图7详细阐述本发明实施例四提供的下行数据的发送和接收方法。
步骤701，基站根据第一信号即主同步信号PSS序列，指示信道的子载波间隔。
在一个示例中，基站根据PSS序列对应的根序号，指示信道的子载波间隔。
进一步地，PSS、SSS映射在同一符号上，且该符号为OFDM符号。
具体地，PSS序列与根序号一一相对应，，也就是说，一个PSS序列对应一个根序号，PSS序列的数量与根序号数量相同，例如有36个序列，就会有36个根序号。由于每个PSS 映射在62个子载波上，因此每个PSS序列有62个元素。具体PSS及其与跟序列的关系参见公式(1)及相关内容阐述。
此外，基站可以通过PSS的根序号u指示子载波间隔和全部小区ID组内编号。或者基站也可以通过PSS的根序号u指示子载波间隔和部分小区ID组内编号，而由主消息块MIB指示其他小区ID组内编号。
需要说明的是，基站和终端以表格的方式存储了根序号u与子载波间隔的对应关系，或者根序号与子载波间隔、主消息块MIB对应关系。
进一步地，为了提高信号传输的可靠性，基站采用小区ID组内编号对MIB导频，且MIB导频的初始化值为：
Figure PCTCN2017087738-appb-000012
其中，
Figure PCTCN2017087738-appb-000013
为小区ID组内编号，
Figure PCTCN2017087738-appb-000014
Figure PCTCN2017087738-appb-000015
ns为时隙编号。
下面阐述基站如何指示物理小区标识PCI。
PCI用以区分不同小区，其由小区ID组内编号和小区ID表示。基站可以通过根序号u和/或主消息块MIB指示小区ID组内编号；基站通过SSS序列集合1或SSS序列集合2中的一个序列集合，指示小区ID。
步骤702，终端接收包含主同步信号PSS和辅同步信号SSS的帧，对PSS进行盲检，获得PSS序列的根序号。
具体地，终端将表7中的根序号u取值0-35分别代入上述公式(1)，计算得到各根序号对应的PSS序列(包含62个元素)。终端将该计算得到的该PSS序列与其通过盲检获得的PSS序列进行相关性检测，得到根序号u取值0-35中相关性最强的PSS序列所对应的根序号，则该根序号即为接收到的PSS序列的根序号。
步骤703，终端根据PSS序列的根序号，并通过查表方式，得到信道的子载波间隔；或者终端根据PSS序列的根序号得到子载波间隔和小区ID组内编号。
步骤704，终端检测辅同步信号SSS，通过SSS确定小区ID，进而通过小区ID和小区ID组内编号(由步骤703得到)确定物理小区标识PCI。
实施例五
下面结合附图8、附图9详细阐述本发明实施例五提供的下行数据的发送和接收方法。
步骤801，基站通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且 该第三信号的位置由该第一信号和/或第二信号在时域上的位置信息生成。
具体地，基站发送多个同步信号，包括第一信号即主同步信号PSS、第二信号即辅同步信号SSS以及第三信号，且该第三信号的序列根据第一信号、第二信号在时域上的位置信息以及小区ID(小区标识)生成。
如图9所示，基站在一个子帧，如子帧1内的多个符号上发送第一信号PSS、第二信号SSS、第三信号，且每个波束下的PSS、SSS、第三信号占用一个符号，如占用一个OFDM符号，此时PSS、SSS、第三信号在频域上频分。
主同步信号PSS序列可以采用LTE中的PSS序列，辅同步信号SSS序列可以采用LTE中的SSS第一序列组或者SSS第二序列组；其中，PSS序列用于指示小区ID组内编号，SSS序列用于指示小区ID。
在一个示例中，第三信号的序列由第一信号即主同步信号PSS、第二信号即辅同步信号SSS在时域上的位置信息确定，并通过小区ID加扰。
在另一个示例中，第三信号的序列由小区ID确定，并通过PSS、SSS在时域上的位置信息加扰。
其中，PSS、SSS在时域上的位置信息包括符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
下面以第三信号的序列由PSS、SSS在时域上的位置信息确定，并通过小区ID加扰为例，阐述如何生成第三信号的序列。
该第三信号的序列为：
Figure PCTCN2017087738-appb-000016
其中，u为该第三信号序列的根序号，NID为小区ID，
Figure PCTCN2017087738-appb-000017
为加扰序列，f为该第三信号占用的子载波数的二分之一倍，例如，该第三信号占用的子载波数为62，则f＝31。
该第三信号指示PSS、SSS在时域上的位置信息为PSS、SSS的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个，则该根序号u的取值相应地为符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。例如，在第三信号指示PSS、SSS在时域上的位置信息为符号序号，则根序号u的取值为符号序号，例如根序号取值为0-11。
在公式(2)中，该加扰序列
Figure PCTCN2017087738-appb-000018
为：
Figure PCTCN2017087738-appb-000019
其中，x(0)＝0,x(1)＝0,x(2)＝0,x(3)＝0,x(4)＝1，mod为求余函数。
步骤802，终端接收包含第一信号PSS、第二信号SSS、第三信号的帧，对第一信号PSS进行盲检，得到PSS序列，根据PSS序列得到小区ID组内编号。
步骤803，终端检测第二信号SSS，得到SSS序列，根据SSS序列获取小区ID。
步骤804，终端根据小区ID，并根据上述公式(3)得到加扰序列
Figure PCTCN2017087738-appb-000020
终端根据该加扰序列
Figure PCTCN2017087738-appb-000021
并通过公式(2)得到第三信号的序列。终端根据该第三信号的序列做相关性检测，从而得到相关性最强的第三信号序列所对应的跟序列u。终端根据跟序列u得到第一信号PSS、第二信号SSS在时域上的位置信息，如得到PSS、SSS的符号序号。由此可见，该第三信号的位置由该第一信号和/或第二信号在时域上的位置信息生成。
综上，终端通过公式(2)、(3)得到第三信号的序列，也就是说，如果基站通过第三信号指示PSS、SSS在时域上的位置信息为PSS、SSS的符号序号，则将该符合序号如0-11代入公式(2)、(3)分别计算得到12个第三信号的序列。终端将其检测到的第三信号的序列与该计算得到的该12个第三信号的序列做相关性检测，得到相关性最强的第三信号序列及其相应根序号。由于根序号与PSS、SSS在时域上的位置信息一一相对应，如该根序号与符号序号一一相对应。因此，根据该相关性运算得到根序号，就能够得到与该根序号相对应的符号序号，即得到PSS、SSS在时域上的位置信息。
实施例六
下面结合附图10详细阐述本发明实施例六提供的下行数据的发送和接收方法。
步骤1001，基站通过第三信号指示信道的子载波间隔，且该第三信号的位置由该第一信号和/或第二信号在时域上的位置信息生成；其中，信道包括广播信道和/或共享信道和/或控制信道。
具体地，基站发送多个同步信号，包括第一信号即主同步信号PSS、第二信号即辅同步信号SSS以及第三信号，且该第三信号的序列根据第一信号、第二信号在时域上的位置信息以及小区ID(小区标识)生成。
如图9所示，基站在一个子帧内的多个符号上发送第一信号PSS、第二信号SSS、第三信号，且每个波束下的PSS、SSS、第三信号占用一个符号，如占用一个OFDM符号，此时PSS、SSS、第三信号在频域上频分。
主同步信号PSS序列可以采用LTE中的PSS序列，辅同步信号SSS序列可以采用LTE中的SSS第一序列组或者SSS第二序列组；其中，PSS序列用于指示小区ID组内编号，SSS序列用于指示小区ID。
在一个示例中，第三信号的序列由第一信号即主同步信号PSS、第二信号即辅同步信号SSS在时域上的位置信息确定，并通过小区ID加扰。
在另一个示例中，第三信号的序列由小区ID确定，并通过PSS、SSS在时域上的位置信息加扰。
下面以第三信号的序列由PSS、SSS在时域上的位置信息确定，并通过小区ID加扰为例，阐述如何生成第三信号的序列。
该第三信号的序列参见上述公式(2)、(3)以及相关内容阐述。
步骤1002，终端接收包含第一信号PSS、第二信号SSS、第三信号的帧，对第一信号PSS进行盲检，得到PSS序列，根据PSS序列得到小区ID组内编号。
步骤1003，终端检测第二信号SSS，得到SSS序列，根据SSS序列获取小区ID。
步骤1004，终端根据小区ID，并根据上述公式(3)得到加扰序列
Figure PCTCN2017087738-appb-000022
终端根据该加扰序列
Figure PCTCN2017087738-appb-000023
并通过公式(2)得到第三信号的序列。终端根据该第三信号的序列做相关性检测，从而得到相关性最强的第三信号序列所对应的跟序列u。终端根据跟序列u得到信道的子载波间隔。由此可见，该第三信号的位置由该第一信号和/或第二信号在时域上的位置信息生成。
下面继续阐述本发明实施例提供的发送端设备和接收端设备。
图11为本发明实施例提供的第一种发送端设备示意图，该发送端设备包括指示单元111、发送单元112。
指示单元111用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息。
发送单元112用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述指示单元111还用于根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元111还用于根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元111还用于根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述指示单元111还用于根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
图12为本发明实施例提供的第一种接收端设备示意图，该接收端设备包括接收单元121、获取单元122、确定单元123。
接收单元121用于接收包含第一信号、第二信号的帧。
获取单元121用于获取所述第一信号、第二信号在频域和/或时域上的位置关系。
确定单元123用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述获取所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：获得所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述确定单元123具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信 号在时域上的位置信息。
在一个示例中，所述确定单元123具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述确定单元123具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述确定单元123具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
图13为本发明实施例提供的第二种发送端设备示意图，该发送端设备包括指示单元131、发送单元132。
指示单元131用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示信道的子载波间隔。
发送单元132用于发送包含所述第一信号、第二信号和所述信道的帧。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：所述第一信号、第二信号在频域和/或时域上的相对位置关系。
在一个示例中，所述指示单元131具体用于：根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元131具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元131具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示信道的子载波间隔。
在一个示例中，所述指示单元131具体用于，根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示信道的子载波间隔。
图14本发明实施例提供的第二种接收端设备示意图，该接收端设备包括接收单元141、获取单元142、确定单元143。
接收单元141用于接收包含第一信号、第二信号的帧。
获取单元142用于获取所述第一信号、第二信号在频域和/或时域上的位置关系。
确定单元143用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定信道的子载波间隔。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述确定单元143具体用于，根据所述第一信号、第二信号在频域和/或时域上的相对位置关系，确定信道的子载波间隔。
在一个示例中，所述确定单元143具体用于，根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元143具体用于，根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元143具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，确定信道的子载波间隔。
在一个示例中，所述确定单元143具体用于，根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定信道的子载波间隔。
图15本发明实施例提供的第三种发送端设备示意图，该发送端设备包括指示单元151、发送单元152。
指示单元151用于根据第一信号的序列，指示所述第一信号和/或第二信号在时域上的位置信息。
发送单元152用于发送包含所述第一信号、第二信号的帧。
在一个示例中，所述指示单元151具体用于，根据第一信号的序列的根序号，指示所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
在一个示例中，所述根序号取值相应地由所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号、小区标识组内编号中的一个或多个确定。
图16本发明实施例提供的第三种接收端设备示意图，该接收端设备包括检测单元161、确定单元162。
检测单元161用于检测第一信号，获得所述第一信号的序列。
确定单元162用于基于所述第一信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元161具体用于检测第一信号，获得所述第一信号的序列的根序号；所述确定单元162具体用于基于所述第一信号的序列的根序号，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元161具体用于，检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及所述第一信号的序列生成公式计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
图17本发明实施例提供的第四种发送端设备示意图，该发送端设备包括指示单元171、发送单元172。
指示单元171用于根据第一信号的序列，指示信道的子载波间隔。
发送单元172用于发送包含所述第一信号、第二信号和所述信道的帧。其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述指示单元171具体用于，根据第一信号的序列的根序号，指示信道的子载波间隔。
图18本发明实施例提供的第四种接收端设备示意图，该接收端设备包括检测单元181、确定单元182。
检测单元181用于检测第一信号，获得所述第一信号的序列。
确定单元182用于基于所述第一信号的序列，确定信道的子载波间隔。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述检测单元181具体用于基于所述第一信号的序列的根序号，确定信道的子载波间隔。
在一个示例中，所述检测单元181还用于检测第一信号，获得所述第一信号的序列，将所述检测得到的第一信号序列，与根据所述根序号及第一信号的序列生成公式，计算得到的第一信号序列，进行相关性检测，得到具有最强相关性的第一信号及其相应根序号。
图19本发明实施例提供的第五种发送端设备示意图，该发送端设备包括指示单元191、发送单元192、确定单元193。
指示单元191用于通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
发送单元192用于发送包含所述第一信号、第二信号、第三信号的帧。
在一个示例中，所述确定单193元用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过所述小区标识进行加扰。
在一个示例中，所述确定单元193用于列根据所述小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
图20本发明实施例提供的第五种接收端设备示意图，该接收端设备包括接收单元2001、检测单元2002、确定单元2003。
接收单元2001用于接收包含第一信号、第二信号、第三信号的帧。
检测单元2002用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成。
确定单元2003用于根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元2002具体用于，检测第一信号和/或第二信号，获取所述小区标识；所确定单元具体用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述检测单元2002还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列；所述确定单元还用于，根据所述第三信号的序列的根序号确定所述第一信号和/或第二信号在时域上的位置信息。
在一个示例中，所述第一信号和/或第二信号在时域上的位置信息，具体为：所述第一信号和/或第二信号的符号序号、子帧号、帧号、波束号、波束组号中的一个或多个。
图21本发明实施例提供的第六种发送端设备示意图，该发送端设备包括指示单元2101、发送单元2102、确定单元2103。
指示单元2101用于通过第三信号指示信道的子载波间隔，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成。
发送单元2102用于发送包含所述第三信号和所述信道的帧。
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述确定单元2103用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过小区标识进行加扰。
在一个示例中，所述确定单元2103用于根据小区标识确定所述第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
图22本发明实施例提供的第六种接收端设备示意图，该接收端设备包括接收单元2201、检测单元2202、确定单元2203。
接收单元2201用于接收包含第一信号、第二信号、第三信号的帧；
检测单元2202用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
确定单元2203用于根据所述第三信号的序列，确定信道的子载波间隔；
其中，所述信道包括广播信道和/或共享信道和/或控制信道。
在一个示例中，所述检测单元2202还用于检测第一信号和/或第二信号，获取所述小区标识；所述确定单元2203还用于，根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列，根据所述第三信号的序列确定信道的子载波间隔。
在一个示例中，所述确定单元2203还用于，对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定信道的子载波间隔。
本领域技术人员可以理解，结合本发明公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现，在此不再赘述。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明的保护范围之内。

Claims (28)

  1. 一种下行信号的发送方法，其特征在于，所述方法包括：
    发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息；
    发送包含所述第一信号、第二信号的帧。
  2. 如权利要求1所述的方法，其特征在于，所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
    所述第一信号、第二信号在频域和/或时域上的相对位置关系。
  3. 如权利要求1或2所述的方法，其特征在于，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述发送端设备根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  4. 如权利要求1或2所述的方法，其特征在于，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述发送端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  5. 如权利要求1或2所述的方法，其特征在于，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述发送端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  6. 如权利要求1或2所述的方法，其特征在于，所述发送端设备根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述发送端设备根据所述第二信号占用的资源块与所第一信号占用的相应资源块的时间差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  7. 一种下行信号的接收方法，其特征在于，所述方法包括：
    接收端设备接收包含第一信号、第二信号的帧；
    获得所述第一信号、第二信号在频域和/或时域上的位置关系；
    根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
  8. 根据权利要求7所述的方法，其特征在于，所述获取所述第一信号、第二信号在频域和/或时域上的位置关系，具体为：
    获得所述第一信号、第二信号在频域和/或时域上的相对位置关系。
  9. 如权利要求7或8所述的方法，其特征在于，所述根据所述第一信号、第二信号 在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述接收端设备根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
  10. 如权利要求7或8所述的方法，其特征在于，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述接收端设备根据所述第二信号占用的符号与所述第一信号占用的符号的时间差值或符号序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
  11. 如权利要求7或8所述的方法，其特征在于，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  12. 如权利要求7或8所述的方法，其特征在于，所述根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
    所述接收端设备根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的时间差值或资源块序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
  13. 一种下行信号的发送方法，其特征在于，所述方法包括：
    发送端设备通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
    发送包含所述第一信号、第二信号、第三信号的帧。
  14. 如权利要求13所述的方法，其特征在于，所述方法还包括：所述第三信号的序列根据所述第一信号和/或第二信号在时域上的位置信息确定，并通过所述小区标识进行加扰。
  15. 如权利要求13所述的方法，其特征在于，所述方法还包括：
    所述第三信号的序列根据所述小区标识确定，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
  16. 一种下行信号的接收方法，其特征在于，所述方法包括：
    接收端设备接收包含第一信号、第二信号、第三信号的帧；
    检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
    根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
  17. 如权利要求16所述的方法，其特征在于，所述方法还包括：所述接收端设备检测第一信号和/或第二信号，获取所述小区标识；
    根据所述小区标识得到加扰序列，根据所述加扰序列检测第三信号，从而得到第三信号的序列；
    根据所述第三信号的序列确定所述第一信号和/或第二信号在时域上的位置信息。
  18. 根据权利要求17所述的方法，其特征在于，所述根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息，包括：
    对所述第三信号的序列进行检测，从而获取第三信号的序列，根据所述第三信号的序列的根序号确定所述第一信号和/或第二信号在时域上的位置信息。
  19. 一种发送端设备，其特征在于，包括：
    指示单元，用于根据第一信号、第二信号在频域和/或时域上的位置关系，指示所述第一信号和/或第二信号在时域上的位置信息；
    发送单元，用于发送包含所述第一信号、第二信号的帧。
  20. 如权利要求19所述的发送端设备，其特征在于，所述指示单元用于根据所述第二信号占用的子载波与所述第一信号占用的相应子载波的频率差值或子载波序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  21. 如权利要求19所述的发送端设备，其特征在于，所述指示单元用于根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  22. 一种接收端设备，其特征在于，包括：
    接收单元，用于接收包含第一信号、第二信号的帧；
    获取单元，用于获取所述第一信号、第二信号在频域和/或时域上的位置关系；
    确定单元，用于根据所述第一信号、第二信号在频域和/或时域上的位置关系，确定所述第一信号和/或第二信号在时域上的位置信息。
  23. 如权利要求22所述的接收端设备，其特征在于，所述确定单元还用于根据所述第二信号占用的子载波与所述第一信号占用的子载波的频率差值或子载波序号差值，确定所述第一信号和/或第二信号在时域上的位置信息。
  24. 如权利要求22所述的接收端设备，其特征在于，所述确定单元还用于根据所述第二信号占用的资源块与所述第一信号占用的相应资源块的频率差值或资源块序号差值，指示所述第一信号和/或第二信号在时域上的位置信息。
  25. 一种发送端设备，其特征在于，包括：
    指示单元，用于通过第三信号指示第一信号和/或第二信号在时域上的位置信息，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
    发送单元，用于发送包含所述第一信号、第二信号、第三信号的帧。
  26. 如权利要求25所述的发送端设备，其特征在于，所述发送端设备还包括确定单元，所述确定单元用于根据所述第一信号和/或第二信号在时域上的位置信息确定所述第三信号的序列，并通过所述小区标识进行加扰。
  27. 如权利要求25所述的发送端设备，其特征在于，所述发送端设备还包括确定单元，所述确定单元还用于根据所述小区标识确定所第三信号的序列，并通过所述第一信号和/或第二信号在时域上的位置信息进行加扰。
  28. 一种接收端设备，其特征在于，包括：
    接收单元，用于接收包含第一信号、第二信号、第三信号的帧；
    检测单元，用于检测所述第三信号的序列，且所述第三信号的位置由所述第一信号和/或第二信号在时域上的位置信息生成；
    确定单元，用于根据所述第三信号的序列，确定所述第一信号和/或第二信号在时域上的位置信息。
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