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WO2018059349A1 - 设置符号的方法和装置 - Google Patents

设置符号的方法和装置 Download PDF

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Publication number
WO2018059349A1
WO2018059349A1 PCT/CN2017/103157 CN2017103157W WO2018059349A1 WO 2018059349 A1 WO2018059349 A1 WO 2018059349A1 CN 2017103157 W CN2017103157 W CN 2017103157W WO 2018059349 A1 WO2018059349 A1 WO 2018059349A1
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WO
WIPO (PCT)
Prior art keywords
blank symbol
subcarrier
length
reference blank
symbol
Prior art date
Application number
PCT/CN2017/103157
Other languages
English (en)
French (fr)
Inventor
赵悦莹
张健
刘炬
楚东雨
朱常青
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17854799.8A priority Critical patent/EP3496352B1/en
Publication of WO2018059349A1 publication Critical patent/WO2018059349A1/zh
Priority to US16/369,353 priority patent/US11108531B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04L27/2602—Signal structure
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0066—Requirements on out-of-channel emissions

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a method and an apparatus for setting symbols.
  • the above-mentioned 5G communication system may use a plurality of subcarriers, so that the base station and the terminal device under the communication system can use different subcarrier spacings in different services, different deployment scenarios, and different frequency bands.
  • the specific application scenarios mentioned above may be, for example, an interference measurement scenario of a dynamic TDD, an electromagnetic sensing measurement scenario, and a Listen-Before-Talk (LBT) scenario of an unlicensed spectrum.
  • LBT Listen-Before-Talk
  • the embodiment of the present invention provides a method and an apparatus for setting a symbol, which is used to solve the technical problem of how to determine the length of a blank symbol corresponding to a subcarrier in each subcarrier interval when a communication system uses multiple subcarrier spacings in the prior art. .
  • a first aspect of the present application provides a method for setting a symbol in a communication system using multiple subcarrier spacings, including: acquiring, by a terminal, a length of a reference blank symbol; wherein a length of the reference blank symbol is spaced from a first subcarrier
  • the first subcarrier spacing is a minimum subcarrier spacing of the plurality of subcarrier spacings
  • the terminal is configured according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the subcarrier corresponding to the second subcarrier spacing in the subcarrier spacing sets a blank symbol.
  • the terminal may be based on the reference blank.
  • the length of the symbol and the time domain information of the reference blank symbol set a blank symbol for the subcarrier corresponding to the other subcarrier spacing in the plurality of subcarrier intervals.
  • the terminal uses the length of the reference symbol and sets a blank symbol on the subframe corresponding to the subcarrier used by itself, one or more complete symbols can be set as a blank symbol, and no The part of a symbol is set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol is used to indicate a position of the reference blank symbol on a subframe corresponding to the reference subcarrier; and the reference subcarrier is a subcarrier corresponding to the first subcarrier interval.
  • the time domain information of the reference blank symbol includes: first time domain information; or the time domain information of the reference blank symbol includes: first time domain information and second time domain information;
  • the first time domain information includes: a symbol number of the reference blank symbol;
  • the second time domain information includes: a subframe number of the reference blank symbol, and/or a frame number of the reference blank symbol.
  • the method for setting symbols provided by the possible implementation manner enables the terminal to set a blank symbol for the subcarriers used according to the time domain information of the reference blank symbol and the length of the reference blank symbol.
  • the way of setting blank symbols increases the flexibility of the terminal setting symbols, so that the above-mentioned method of setting symbols is applicable to a wider range of scenarios, and further improves the spectrum efficiency of the system.
  • the obtaining the length of the reference blank symbol includes: acquiring a length of the reference blank symbol according to a preset reference subcarrier interval; and the reference subcarrier spacing is the first subcarrier spacing; or Obtaining the length of the reference blank symbol according to the length information of the reference blank symbol.
  • the length information of the reference blank symbol includes: a subcarrier spacing set that is formed by the multiple subcarrier spacings; and the obtaining the length of the reference blank symbol according to the length information of the reference blank symbol, including: The first subcarrier spacing in the set of subcarrier spacings is obtained, and the length of the reference blank symbols is obtained.
  • the acquiring the length of the reference blank symbol according to the first subcarrier spacing in the set of subcarrier intervals includes: lengthming the derivative of the first subcarrier spacing and the sum of cyclic prefixes As the length of the reference blank symbol.
  • the length information of the reference blank symbol includes: a mini-slot set composed of mini-slots corresponding to the multiple sub-carrier intervals; and the length of the reference blank symbol is obtained according to length information of the reference blank symbol
  • the method includes: acquiring, according to the first minislot in the set of minislots, a length of the reference blank symbol; the first minislot is a largest minislot in the minislot set, The first minislot is a minislot corresponding to the first subcarrier spacing.
  • the acquiring the length of the reference blank symbol according to the first minislot in the minislot set includes: using a duration corresponding to the first minislot as the reference blank symbol length.
  • the length information of the reference blank symbol includes any one of the following: a subcarrier spacing corresponding to the reference blank symbol, a length of the reference blank symbol, and a mini slot corresponding to the reference blank symbol.
  • the length information of the reference blank symbol further includes: frequency domain information of the reference blank symbol.
  • the method of setting symbols provided by the possible implementation manner makes the setting of the blank symbols more flexible, thereby making the above-mentioned manner of setting the symbols applicable to the wider scene.
  • a second aspect of the embodiments of the present application provides a method for setting a symbol in a communication system using multiple subcarrier spacings, including: a base station acquiring a length of a reference blank symbol; wherein a length of the reference blank symbol is spaced from a first subcarrier
  • the first subcarrier spacing is a minimum subcarrier spacing of the plurality of subcarrier spacings
  • the base station is at least one subtitle according to a length of the reference blank symbol and time domain information of the reference blank symbol.
  • the subcarriers corresponding to the carrier spacing are set with blank symbols.
  • the base station may according to the reference blank
  • the length of the symbol and the time domain information of the reference blank symbol which are one or more subcarriers used in the communication system
  • the subcarriers in the wave interval set a blank symbol.
  • the base station uses the length of the reference symbol and sets a blank symbol on a subframe corresponding to the subcarrier in one or more subcarrier intervals used in the communication system, one or more complete ones may be completed.
  • the symbol of the symbol is set to a blank symbol, and the part of a symbol is not set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol is used to indicate a position of the reference blank symbol on a subframe corresponding to the reference subcarrier; and the reference subcarrier is a subcarrier corresponding to the first subcarrier interval.
  • the base station sets a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol, including: the base station according to the reference blank The length of the symbol and the time domain information of the reference blank symbol, and setting a blank symbol for the subcarrier corresponding to each subcarrier interval; or, the base station according to the length of the reference blank symbol and the time domain information of the reference blank symbol And setting a blank symbol for the subcarrier corresponding to the first subcarrier spacing, and setting a subband width corresponding to the first subcarrier spacing to a full bandwidth.
  • the method of setting symbols provided by the possible implementation manner makes the setting of the blank symbols more flexible, thereby making the above-mentioned manner of setting the symbols applicable to the wider scene.
  • the time domain information of the reference blank symbol includes: first time domain information; or the time domain information of the reference blank symbol includes: first time domain information and second time domain information;
  • the first time domain information includes: a symbol number of the reference blank symbol;
  • the second time domain information includes: a subframe number of the reference blank symbol, and/or a frame number of the reference blank symbol.
  • the method for setting symbols provided by the possible implementation manner enables the terminal to set a blank symbol for the subcarriers used according to the time domain information of the reference blank symbol and the length of the reference blank symbol.
  • the way of setting blank symbols increases the flexibility of the terminal setting symbols, so that the above-mentioned method of setting symbols is applicable to a wider range of scenarios, and further improves the spectrum efficiency of the system.
  • the obtaining the length of the reference blank symbol includes: acquiring a length of the reference blank symbol according to a preset reference subcarrier interval; and the reference subcarrier spacing is the first subcarrier spacing; or Obtaining the length of the reference blank symbol according to the length information of the reference blank symbol.
  • the length information of the reference blank symbol includes: a subcarrier spacing set that is formed by the multiple subcarrier spacings; and the obtaining the length of the reference blank symbol according to the length information of the reference blank symbol, including: The first subcarrier spacing in the set of subcarrier spacings is obtained, and the length of the reference blank symbols is obtained.
  • the acquiring the length of the reference blank symbol according to the first subcarrier spacing in the set of subcarrier intervals includes: lengthming the derivative of the first subcarrier spacing and the sum of cyclic prefixes As the length of the reference blank symbol.
  • the length information of the reference blank symbol includes: a mini-slot set composed of mini-slots corresponding to the multiple sub-carrier intervals; and the length of the reference blank symbol is obtained according to length information of the reference blank symbol
  • the method includes: acquiring, according to the first minislot in the set of minislots, a length of the reference blank symbol; the first minislot is a largest minislot in the minislot set, The first minislot is a minislot corresponding to the first subcarrier spacing.
  • the acquiring the length of the reference blank symbol according to the first minislot in the minislot set includes: using a duration corresponding to the first minislot as the reference blank symbol length.
  • the length information of the reference blank symbol includes any one of the following: a reference corresponding to the blank symbol a carrier spacing, a length of the reference blank symbol, and a minislot corresponding to the reference blank symbol.
  • the length information of the reference blank symbol further includes: frequency domain information of the reference blank symbol.
  • the method of setting symbols provided by the possible implementation manner makes the setting of the blank symbols more flexible, thereby making the above-mentioned manner of setting the symbols applicable to the wider scene.
  • a third aspect of embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacings, the apparatus comprising the method for performing the first aspect and the various implementations of the first aspect, Module or means.
  • a fourth aspect of embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacings, the apparatus comprising the method for performing the second aspect and the various implementations of the second aspect. Module or means.
  • a fifth aspect of embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacing, the apparatus comprising a processor and a memory, the memory is configured to store a program, and the processor calls a program stored in the memory to execute The method provided by the first aspect of the application.
  • a sixth aspect of the embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacings, the apparatus comprising a processor and a memory, the memory is configured to store a program, and the processor calls a program stored in the memory to execute The method provided by the second aspect of the application.
  • a seventh aspect of embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacings, comprising at least one processing element (or chip) for performing the method of the above first aspect.
  • An eighth aspect of embodiments of the present application provides an apparatus for setting a symbol in a communication system using a plurality of subcarrier spacings, comprising at least one processing element (or chip) for performing the method of the above second aspect.
  • a ninth aspect of the embodiments of the present application provides a program for performing the method of the above first aspect when executed by a processor.
  • a tenth aspect of the embodiments of the present application provides a program product, such as a computer readable storage medium, comprising the program of the ninth aspect.
  • An eleventh aspect of the embodiments of the present application provides a program for performing the method of the above second aspect when executed by a processor.
  • a twelfth aspect of the embodiments of the present application provides a program product, such as a computer readable storage medium, including the program of the eleventh aspect.
  • the base station or the terminal uses the length of the reference symbol
  • the subcarrier corresponding to the subcarrier interval is set as a blank symbol
  • one or more complete symbols can be set as a blank symbol, and no The part of a symbol is set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • FIG. 1 is a schematic diagram of a corresponding relationship between subcarrier spacing and symbols according to an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a method for setting a symbol according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart diagram of another method for setting symbols according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an apparatus for setting symbols according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of another apparatus for setting symbols according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of another apparatus for setting symbols according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another apparatus for setting symbols according to an embodiment of the present application.
  • a base station also known as a radio access network (RAN) device, is a device that connects a terminal to a wireless network, and can be a Global System of Mobile communication (GSM) or code division multiple access.
  • GSM Global System of Mobile communication
  • a Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA) may also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or may be a long term evolution.
  • Evolutional Node B, eNB or eNodeB in the Long Term Evolution (LTE), or a relay station or an access point, or a base station in a future 5G network, etc., is not limited herein.
  • the wireless terminal can be a wireless terminal or a wired terminal.
  • the wireless terminal can be a device that provides voice and/or other service data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal.
  • RAN Radio Access Network
  • it may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network.
  • the wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal.
  • the access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.
  • a plurality means two or more.
  • "and/or” describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • the 5G communication system can simultaneously use a plurality of different subcarriers at the same frequency point, so that the base station and the terminal device under the communication system can be in different services, different deployment scenarios, and different spectrums. Use different subcarrier spacing.
  • the foregoing services may be, for example, enhanced mobile broadband (eMBB) services, Massive Machine Type Communication (mMTC) services, and ultra-reliable low latency communications (Ultra-reliable and low latency communications). , URLLC) services, Multimedia Broadcast Multicast Service (MBMS) and positioning services.
  • eMBB enhanced mobile broadband
  • mMTC Massive Machine Type Communication
  • URLLC ultra-reliable low latency communications
  • URLLC Wireless Local Area Network
  • MBMS Multimedia Broadcast Multicast Service
  • the deployment scenarios mentioned above may be, for example, indoor hotspot scenes, dense urban scenes, suburban scenes, urban macro coverage scenes, high-speed rail scenes, and the like.
  • the above-mentioned spectrum may be, for example, any frequency range of 100 GHz
  • FIG. 1 is a schematic diagram of a corresponding relationship between subcarrier spacing and symbols according to an embodiment of the present disclosure. It is assumed that the above communication system uses three subcarrier spacings, respectively 15 kHz subcarrier spacing, 30 kHz subcarrier spacing and 60 kHz subcarrier spacing.
  • the base station and the terminal use a 60 kHz subcarrier spacing when transmitting the eMBB service, and the base station and the terminal use the 15 kHz subcarrier spacing when transmitting the mMTC service, and the base station and the terminal use the 30 kHz subcarrier spacing when transmitting the URLLC service.
  • Figure 1 shows the number of symbols corresponding to each subcarrier spacing over the same length of time (the symbol shown here may be a symbol containing a cyclic prefix). As shown in FIG. 1, the 15 kHz subcarrier spacing corresponds to 4 symbols, the 30 kHz subcarrier spacing corresponds to 8 symbols, and the 60 kHz subcarrier spacing corresponds to 16 symbols over the same length of time.
  • the smaller the subcarrier spacing the longer the symbol length corresponding to the subcarrier spacing. It can be seen from the above example that the symbol lengths corresponding to different subcarrier spacings are different, and the number of corresponding symbols between the subcarrier spacings is a multiple relationship.
  • blank symbols that is, symbols that do not transmit service data or transmit signaling.
  • transmit specific signals or implement specific functions can be as follows:
  • the first scenario a Time-Division Duplex (TDD) interference measurement application scenario, specifically:
  • the 5G communication system introduces dynamic TDD technology, that is, different cells can adopt different TDD configurations.
  • the dynamic TDD technology enables flexible deployment of services between base stations.
  • the base station and the terminal device in each cell transmit and receive data using the same frequency channel when communicating using the dynamic TDD technology, the base station and/or the terminal device are easy to use when transmitting data using the dynamic TDD technology.
  • the base station and the terminal that are transmitting data within the coverage of the neighboring cell cause cross interference. Therefore, in order to avoid cross interference, the base station and/or the terminal to which data is to be transmitted may transmit the cross interference sensing signal using a blank symbol to perform cross interference measurement before transmitting the data. In this way, the base station and/or the terminal to which the data is to be transmitted can adjust the transmission power of the data when transmitting the data by the result of the cross interference measurement, so as to eliminate or suppress the cross interference.
  • the second scenario an electromagnetic sensing application scenario, specifically:
  • the radar signal referred to herein may be a linear frequency modulation (LFM) or a modulated signal that approximates a linear modulated signal by using an Orthogonal Frequency Division Multiplexing (OFDM) modulated signal.
  • LFM linear frequency modulation
  • OFDM Orthogonal Frequency Division Multiplexing
  • the LFM is approximated by the OFDM modulation signal.
  • the subcarriers of the plurality of adjacent OFDM symbols may be stepped up in the frequency domain, so that adjacent OFDM symbols form a close slope to approximate the LFM waveform.
  • the third scenario a Listen-Before-Talk (LBT) application scenario in an unlicensed spectrum, specifically:
  • LAA-LTE Long Term Evolution
  • CA Carrier Aggregation
  • 5 GHz unlicensed spectrum also called unlicensed spectrum
  • the existing LTE service uses the unlicensed spectrum to carry part of the data service in the LTE system. Therefore, in order to use the unlicensed spectrum together with other systems, under the LAA-LTE system
  • LBT Listen-Before-Talk
  • the Clear Channel Assessment (CCA) method evaluates all channels on the unlicensed spectrum and uses the unlicensed spectrum to transmit data when it is determined by evaluation that all channels on the unlicensed spectrum are idle.
  • the symbol lengths of the subcarriers in different subcarrier intervals in the 5G communication system are different, if a blank symbol is set for each subcarrier spacing subcarrier based on the symbol length corresponding to any subcarrier spacing, the value is smaller than The symbols corresponding to other subcarrier spacings of the subcarrier spacing do not work properly.
  • the first symbol shown in FIG. 1 is set as a blank symbol with reference to the symbol length corresponding to the subcarriers of the subcarrier spacing of 30 kHz.
  • the first symbol length corresponding to the subcarrier of the subcarrier spacing of 15 kHz is larger than the length of the blank symbol, if the symbol length corresponding to the subcarrier of the subcarrier spacing of 30 kHz is the subcarrier spacing of 15 kHz.
  • the subcarriers with a subcarrier spacing of 15 kHz may not work properly corresponding to the first symbol, which reduces the spectral efficiency of the system. Therefore, when the communication system uses multiple subcarrier spacings, how to determine the length of the blank symbols corresponding to the subcarriers in each subcarrier spacing is an urgent problem to be solved.
  • a method for setting a symbol is proposed to solve the technical problem of how to determine the length of a blank symbol corresponding to a subcarrier in each subcarrier interval when the communication system uses multiple subcarrier spacings.
  • FIG. 2 is a schematic flowchart diagram of a method for setting symbols according to an embodiment of the present application.
  • the embodiment relates to a specific process of how a terminal sets a blank symbol for a subcarrier corresponding to a second subcarrier interval in a plurality of subcarrier intervals according to the length of the obtained reference blank symbol and the time domain information of the reference blank symbol.
  • the method includes:
  • the terminal acquires a length of the reference blank symbol.
  • the foregoing terminal may be a terminal under the “communication system using multiple subcarrier spacings”.
  • the multiple subcarrier spacings include at least: a first subcarrier spacing and a second subcarrier spacing.
  • the first subcarrier spacing and the second subcarrier spacing may be the subcarrier spacing currently used by the terminal, or the second subcarrier spacing is the subcarrier spacing currently used by the terminal.
  • the length of the reference blank symbol that is, the duration of the reference blank symbol in the time domain is related to the minimum subcarrier spacing (ie, the first subcarrier spacing) of the plurality of subcarrier spacings used in the communication system. Union. That is, the length of the reference blank symbol described above may be determined by the first subcarrier spacing or system parameters associated with the first subcarrier spacing.
  • the embodiment does not limit the manner in which the terminal obtains the length of the reference blank symbol.
  • the terminal may calculate the length of the reference blank symbol according to the first subcarrier interval, and may also associate the system according to the first subcarrier interval.
  • the parameter calculates the length of the reference blank symbol, and also receives the length of the reference blank symbol sent by the high layer signaling.
  • the terminal sets a blank symbol for the subcarrier corresponding to the second subcarrier spacing in the multiple subcarrier spacing according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the terminal may be based on the length of the reference blank symbol. And the time domain information of the reference blank symbol, and the blank symbol is set for the subcarrier corresponding to the second subcarrier interval. That is, the terminal sets a blank symbol for the subcarrier used by the terminal.
  • the length of the reference symbol is equal to the length of one or more symbols corresponding to other subcarrier spacings.
  • the terminal uses the length of the reference symbol and sets a blank symbol on the subframe corresponding to the subcarrier used by itself, one or more complete symbols are set as blank symbols, and a certain symbol does not appear.
  • the part is set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol is used to enable the terminal to determine the time domain location of the set blank symbol.
  • the time domain information of the reference blank symbol may be used to indicate a location of the reference blank symbol on a subframe corresponding to the reference subcarrier, where the reference subcarrier is a subcarrier corresponding to the first subcarrier spacing.
  • the terminal can according to the corresponding relationship between the symbol and the subframe in the subcarrier spacing (ie, the second subcarrier spacing), the correspondence between the symbol and the subframe in the first subcarrier interval, and the reference blank symbol in the reference.
  • the position on the subframe corresponding to the subcarrier determines the position of the reference blank symbol on the subframe corresponding to the second subcarrier spacing.
  • the terminal may use the symbol of the position of the reference blank symbol corresponding to the subcarrier corresponding to the reference blank symbol according to the length of the reference blank symbol.
  • Set to a blank symbol For details on how to set a blank symbol, the terminal may refer to the prior art. For example, the terminal may use discontinuous transmission to pause data sent on the symbol, so that the symbol becomes a blank symbol.
  • the time domain information of the reference blank symbol may also be used to indicate a position of the reference blank symbol on the subframe corresponding to the subcarrier in the second subcarrier interval.
  • the terminal can directly set the symbol corresponding to the position of the reference blank symbol on the subframe corresponding to the subcarrier used by the terminal as a blank symbol according to the length of the reference blank symbol.
  • the symbol length corresponding to each sub-carrier interval may not be an integer multiple.
  • the time domain information of the reference blank symbol when used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, the time domain information may be indicated by a plurality of consecutive reference blank symbols. Time domain information such that any terminal under the communication system uses the time domain information, and the length of the reference symbol, when the blank symbol is set on the subcarrier used by itself, one or more complete symbols are Set to a blank symbol, there will be no need to set a part of a symbol to a blank symbol, resulting in the symbol not working properly, which improves the spectral efficiency of the system.
  • the terminal can avoid The symbol where the synchronization channel, broadcast channel, and Beam Reference Signaling (BRS) are located.
  • BRS Beam Reference Signaling
  • the terminal sets a plurality of symbols on a subframe corresponding to the subcarrier used by the terminal as a blank symbol, the multiple symbols may be consecutive symbols.
  • the terminal may be based on the reference blank.
  • the length of the symbol and the time domain information of the reference blank symbol set a blank symbol for the subcarrier corresponding to the other subcarrier spacing in the plurality of subcarrier intervals.
  • the foregoing embodiment relates to a specific process of how the terminal obtains the length of the reference blank symbol, and the foregoing S101 may include the following situations:
  • the first case the length of the reference blank symbol is obtained according to a preset reference subcarrier interval.
  • a reference subcarrier interval (ie, reference numerology) is preset in the foregoing communication system, and the reference subcarrier interval is the smallest subcarrier interval among the plurality of subcarrier intervals used in the communication system (ie, the first subcarrier)
  • the terminal may directly obtain the length of the reference blank symbol according to the preset reference subcarrier spacing.
  • the terminal may use the duration corresponding to the sum of the “derivative of the reference subcarrier spacing” and the “cyclic prefix corresponding to the symbol in the reference subcarrier spacing” as the length of the reference blank symbol.
  • the terminal may also use the duration of the mini-slot corresponding to the reference sub-carrier interval as the length of the reference blank symbol.
  • the terminal may also obtain the length of the reference blank symbol according to the reference subcarrier spacing, and the related technical means, and the details are not described herein.
  • the second case the length of the reference blank symbol is obtained according to the length information of the reference blank symbol.
  • the length information of the reference blank symbol may carry any information that can be used to obtain the length of the reference blank symbol.
  • the length information of the reference blank symbol may include: a subcarrier spacing set composed of a plurality of subcarrier spacings used by the communication system, and a minislot composed of minislots corresponding to each subcarrier spacing used by the communication system.
  • the length information of the reference blank symbol may be sent by the base station to the terminal.
  • the base station may send the information to the terminal through the existing common configuration signaling, for example, the main information block (MIB) signaling, the system information block (SIB) signaling, and the base station may also pass
  • the existing dedicated signaling is sent to the terminal, for example, Radio Resource Control (RRC) signaling, etc.; the base station may also send the length information of the reference blank symbol to the terminal as a separate message;
  • RRC Radio Resource Control
  • the base station may also send the length information of the reference blank symbol to the terminal as a separate message;
  • the length information of the reference blank symbol may be indicated to the terminal, and the manner in which the terminal can learn the length information of the reference blank symbol is within the protection scope of the embodiment of the present application.
  • the terminal may be configured according to the smallest subcarrier spacing in the subcarrier spacing set (ie, the first subcarrier Interval), get the length of the reference blank symbol.
  • the terminal may use the duration corresponding to the sum of the “derivative of the first subcarrier spacing” and the “cyclic prefix corresponding to the symbol in the first subcarrier spacing” as the length of the reference blank symbol.
  • the length of the reference blank symbol determined by the terminal according to the subcarrier spacing set may be 1/15 k.
  • the terminal may also obtain the length of the reference blank symbol according to the first subcarrier spacing, and the like.
  • the terminal may be based on the largest mini-slot in the mini-slot set. , get the length of the reference blank symbol.
  • the largest mini-slot in the mini-slot set is the mini-slot corresponding to the minimum sub-carrier interval, that is, the mini-slot corresponding to the first sub-carrier interval.
  • the terminal may use the duration corresponding to the first minislot as the length of the reference blank symbol.
  • the mini-slot set included in the degree information is ⁇ 33.34 us, 16.67 us, 8.33 us ⁇ , and the length of the reference blank symbol determined by the terminal according to the mini-slot set may be 33.34 us.
  • the terminal may also obtain the length of the reference blank symbol according to the first mini-slot, and the related technical means, and the details are not described herein.
  • the terminal may further fix the mini-slot set when receiving the mini-slot set. The duration corresponding to the minislot is used as the length of the reference blank symbol.
  • the length information of the reference blank symbol includes the length of the reference blank symbol, and the terminal may directly obtain the length of the reference blank symbol according to the length information of the reference blank symbol.
  • the length of the reference blank symbol may be a specific duration. For example, if the length information of the reference blank symbol includes: 33.34us, the terminal may directly use the 33.34us as the length of the reference blank symbol.
  • the length information of the reference blank symbol is sent by the base station to the terminal by using dedicated signaling
  • the length of the reference blank symbol included in the length information of the reference blank symbol may be: “the terminal included in the reference blank symbol.
  • the number of symbols on the subframe corresponding to the used subcarrier For example, if the length information of the reference blank symbol includes: 3, the terminal may use the product of the symbol length on the subframe corresponding to the subcarrier used by the terminal as the length of the reference blank symbol.
  • the terminal may use “the derivative of the subcarrier spacing corresponding to the reference blank symbol” and “the cyclic prefix corresponding to the symbol in the subcarrier spacing”. The duration of the sum is taken as the length of the reference blank symbol.
  • the terminal may further obtain the length of the reference blank symbol according to the sub-carrier spacing corresponding to the reference blank symbol, and the length of the reference blank symbol is not described herein.
  • the length information of the reference blank symbol includes the mini slot corresponding to the reference blank symbol, and the terminal may use the duration of the mini slot corresponding to the reference blank symbol as the length of the reference blank symbol.
  • the terminal may also obtain the length of the reference blank symbol according to the mini-slot corresponding to the reference blank symbol, and the length of the reference blank symbol is not described herein.
  • the length information of the reference blank symbol may further include: frequency domain information of the reference blank symbol, where the frequency domain information of the reference blank symbol is used.
  • a blank symbol can be set for indicating to the terminal which frequency bands of the frequency band in the communication system.
  • the terminal may determine, according to the frequency domain information carried in the length information, whether the subcarrier used by the terminal is located in a frequency domain range included in the frequency domain information. If yes, the terminal obtains the length of the reference blank symbol according to the length information of the reference blank symbol, and further sets a blank symbol on the subcarrier used by the reference blank symbol according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the terminal does not set the blank symbol according to the length information of the reference blank symbol received this time. In this way, the setting of the blank symbol is made more flexible, and thus the above-mentioned method of setting the symbol is applied to a wider range of scenes.
  • the terminal may acquire a length of a reference blank symbol associated with a minimum subcarrier spacing among a plurality of subcarrier intervals, so that the terminal can be based on Referring to the length of the blank symbol and the time domain information of the reference blank symbol, a blank symbol is set for the subcarrier corresponding to the other subcarrier spacing in the plurality of subcarrier intervals.
  • the terminal uses the length of the reference symbol and sets a blank symbol on the subframe corresponding to the subcarrier used by itself, one or more complete symbols can be set as a blank symbol, and no The part of a symbol is set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol may be used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, and may also be used to indicate that the reference blank symbol is in the second subcarrier interval.
  • the position on the sub-frame corresponding to the subcarrier when the time domain information of the reference blank symbol is used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, the time domain information of the reference blank symbol may include : first time domain information; or, first time domain information and second time domain information.
  • the first time domain information includes: a reference blank symbol number, that is, a symbol number of the reference blank symbol on the subframe corresponding to the reference subcarrier; and the second time domain information includes: a subframe number of the reference blank symbol (ie, the reference blank symbol) a subframe number on a subframe corresponding to the reference subcarrier, and/or a frame number of the reference blank symbol (ie, a frame number of the reference blank symbol on a frame corresponding to the reference subcarrier, where one frame may include at least one Subframe).
  • the representation forms of the foregoing first time domain information and the second time domain information are not limited, so that the reference blank symbol number, the reference blank symbol subframe number, and the reference blank can be correctly expressed.
  • the frame number of the symbol is sufficient. For example, you can use the display form of the display, or you can use the implicit form of expression.
  • the terminal may set a blank symbol on each subframe corresponding to the used subcarrier according to the time domain information of the preset reference blank symbol and the length of the reference blank symbol, that is, set a blank on each subframe. symbol.
  • the terminal may be in the The used subcarrier corresponds to the subframe number of the reference blank symbol, and the blank symbol is set according to the length of the reference blank symbol, that is, the blank symbol is set on the same subframe as the subframe number of the reference blank symbol.
  • the terminal may be used by the terminal.
  • the subcarrier corresponds to the frame number of the reference blank symbol, and according to the length of the reference blank symbol and the reference blank symbol number, a blank symbol is set on each subframe of the frame, that is, the same frame number as the reference blank symbol. A blank symbol is set on each sub-frame.
  • the terminal may select a subframe with the same number as the subframe number of the reference blank symbol on the frame of the frame number corresponding to the reference blank symbol used by the terminal, and the length and reference according to the reference blank symbol on the subframe
  • the blank symbol number is set, and the blank symbol is set, that is, in the same frame number as the reference blank symbol, a blank symbol is set on the same subframe as the subframe number of the reference blank symbol.
  • the time domain information of the reference blank symbol may be time domain information preset in the terminal, and may also be time domain information sent by the base station to the terminal.
  • the time domain information of the reference blank symbol may further include: first time domain information preset in the terminal, second time domain information sent by the base station to the terminal; or preset second in the terminal Time domain information, first time domain information sent by the base station to the terminal, and the like. If the time domain information of the reference blank symbol is sent to the terminal by the base station, the time domain information of the reference blank symbol may be carried in the same signaling as the length information of the reference blank symbol in the foregoing embodiment, and sent to the terminal. It can be carried to the terminal in different signaling, which is not limited in this application.
  • the terminal By using the information included in the time domain information of the reference blank symbol listed above, the terminal causes the terminal to set a blank symbol according to the time domain information of the reference blank symbol and the length of the reference blank symbol for the subcarrier used.
  • There may be a plurality of ways of setting a blank symbol which increases the flexibility of the terminal to set the symbol, so that the above-mentioned method of setting the symbol is applicable to a wider range of scenes, and further improves the spectrum efficiency of the system.
  • FIG. 3 is a schematic flowchart diagram of another method for setting symbols according to an embodiment of the present disclosure. This embodiment relates to a specific process of how a base station sets a blank symbol for a subcarrier corresponding to at least one subcarrier interval according to the length of the obtained reference blank symbol and the time domain information of the reference blank symbol. As shown in FIG. 3, the method includes:
  • the base station acquires a length of the reference blank symbol.
  • the foregoing base station may be a base station under a “communication system using multiple subcarrier spacings”.
  • the manner in which the base station obtains the length of the reference blank symbol is similar to the manner in which the terminal obtains the length of the reference blank symbol, and details are not described herein again.
  • the base station sets a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the base station may set a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol. That is, the base station sets a blank symbol for the subcarrier corresponding to one or more subcarrier spacings in the communication system.
  • the length of the reference symbol is equal to the length of one or more symbols corresponding to other subcarrier spacings.
  • the base station uses the length of the reference symbol to set a blank symbol for the subframe corresponding to the subcarrier in one or more subcarrier intervals in the communication system, the base station corresponding to the subcarrier in the subcarrier interval
  • One or more complete symbols on the above are set as blank symbols, and there is no case where a part of a symbol is set as a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol is used to enable the terminal to determine the time domain location of the set blank symbol.
  • the time domain information of the reference blank symbol may be used to indicate a location of the reference blank symbol on a subframe corresponding to the reference subcarrier, where the reference subcarrier is a subcarrier corresponding to the first subcarrier spacing.
  • the base station can according to the correspondence between the symbol and the subframe in each subcarrier interval in the at least one subcarrier interval, the correspondence between the symbol and the subframe in the first subcarrier interval, and the reference blank symbol corresponding to the reference subcarrier.
  • the position on the subframe determines the position of the reference blank symbol on the subframe corresponding to the subcarrier spacing.
  • the base station may, according to the length of the reference blank symbol, a symbol corresponding to the position of the reference blank symbol on the subframe corresponding to the subcarrier in the subcarrier interval. , set to a blank symbol.
  • the base station can refer to the prior art. For example, the base station can suspend the data sent on the symbol by using discontinuous transmission, so that the symbol becomes a blank symbol.
  • the time domain information of the reference blank symbol may further be used to indicate a position of the reference blank symbol on a subframe corresponding to each subcarrier spacing in the at least one subcarrier interval.
  • the base station can directly according to the length of the reference blank symbol, and refer to the position of the blank symbol on the subframe corresponding to each subcarrier interval in the at least one subcarrier interval, and the subframe corresponding to the subcarrier in the subcarrier interval.
  • the symbol corresponding to the position of the reference blank symbol is set as a blank symbol.
  • the symbol length corresponding to each sub-carrier interval may not be an integer multiple.
  • the time domain information of the reference blank symbol when used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, the time domain information may be indicated by a plurality of consecutive reference blank symbols. Time domain information so that the base station is using the time domain information as well, The length of the reference symbol, when a blank symbol is set on the subcarriers for the subcarrier spacing, one or more complete symbols are set as blank symbols, and no part of a symbol is set as a blank symbol, resulting in the symbol The situation that it is not working properly improves the spectrum efficiency of the system.
  • the foregoing base station according to the length of the reference blank symbol and the time domain information of the reference blank symbol, one or more symbols on the subframe corresponding to the subcarrier in each of the at least one subcarrier interval When set to a blank symbol, you can avoid the synchronization channel, broadcast channel, and symbol of the BRS.
  • the foregoing base station sets multiple symbols on the subframe corresponding to the subcarrier in each of the at least one subcarrier interval as a blank symbol, the multiple symbols may be consecutive symbols.
  • the method for setting a symbol provided by the embodiment of the present application, in a communication system using multiple subcarrier spacings, after the base station obtains the length of the reference blank symbol associated with the smallest subcarrier spacing among the plurality of subcarrier intervals, the reference blank may be The length of the symbol and the time domain information of the reference blank symbol set a blank symbol for the subcarriers in one or more subcarrier spacings used in the communication system.
  • the base station uses the length of the reference symbol and sets a blank symbol on a subframe corresponding to the subcarrier in one or more subcarrier intervals used in the communication system, one or more complete ones may be completed.
  • the symbol of the symbol is set to a blank symbol, and the part of a symbol is not set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the embodiment relates to a specific process of how the base station obtains the length of the reference blank symbol, and the foregoing S201 may include the following situations:
  • the first case the length of the reference blank symbol is obtained according to a preset reference subcarrier interval.
  • the manner in which the base station obtains the length of the reference blank symbol according to the preset reference sub-carrier spacing is similar to the manner in which the terminal obtains the length of the reference blank symbol according to the preset reference sub-carrier spacing, and details are not described herein again.
  • the second case the length of the reference blank symbol is obtained according to the length information of the reference blank symbol.
  • the length information of the reference blank symbol may carry any information that can be used to obtain the length of the reference blank symbol.
  • the length information of the reference blank symbol may include: a subcarrier spacing set composed of a plurality of subcarrier spacings used by the communication system, and a minislot composed of minislots corresponding to each subcarrier spacing used by the communication system. The set, the length of the reference blank symbol, the subcarrier spacing corresponding to the reference blank symbol, the mini slot corresponding to the reference blank symbol, and the like.
  • the length information of the reference blank symbol when the length information of the reference blank symbol includes: a length of the reference blank symbol, a subcarrier spacing corresponding to the reference blank symbol, a mini slot corresponding to the reference blank symbol, or the like, the length information of the reference blank symbol may be
  • the higher layer is sent to the base station, and can also be preset in the base station.
  • the upper layer mentioned herein may be an upper layer device of the base station, for example, a core network device.
  • the manner in which the base station obtains the length of the reference blank symbol according to the length information of the reference blank symbol is similar to the manner in which the terminal obtains the length of the reference blank symbol according to the length information of the reference blank symbol, and details are not described herein again.
  • the length information of the reference blank symbol may further include: frequency domain information of the reference blank symbol, the reference blank
  • the frequency domain information of the symbol is used to indicate to the base station which sub-carriers of the frequency band in the communication system can set a blank symbol.
  • the base station can set a blank symbol for the subcarriers in the subcarrier spacing in the frequency domain range according to the frequency domain information carried in the length information. In this way, the setting of the blank symbol is made more flexible, and thus the above-mentioned method of setting the symbol is applied to a wider range of scenes.
  • the base station may Referring to the length of the blank symbol and the time domain information of the reference blank symbol, a blank symbol is set for the subcarriers in one or more subcarrier spacings used in the communication system.
  • a blank symbol is set for the subcarriers in one or more subcarrier spacings used in the communication system.
  • the base station uses the length of the reference symbol and sets a blank symbol on a subframe corresponding to the subcarrier in one or more subcarrier intervals used in the communication system, one or more complete ones may be completed.
  • the symbol of the symbol is set to a blank symbol, and the part of a symbol is not set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the time domain information of the reference blank symbol may be used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, and may also be used to indicate that the reference blank symbol is in the second subcarrier interval.
  • the position on the sub-frame corresponding to the subcarrier when the time domain information of the reference blank symbol is used to indicate the position of the reference blank symbol on the subframe corresponding to the reference subcarrier, the time domain information of the reference blank symbol may include : first time domain information; or, first time domain information and second time domain information.
  • the first time domain information includes: a reference blank symbol number, that is, a symbol number of the reference blank symbol on the subframe corresponding to the reference subcarrier; and the second time domain information includes: a subframe number of the reference blank symbol (ie, the reference blank symbol) a subframe number on a subframe corresponding to the reference subcarrier, and/or a frame number of the reference blank symbol (ie, a frame number of the reference blank symbol on a frame corresponding to the reference subcarrier, where one frame may include at least one Subframe).
  • the representation forms of the foregoing first time domain information and the second time domain information are not limited, so that the reference blank symbol number, the reference blank symbol subframe number, and the reference blank can be correctly expressed.
  • the frame number of the symbol is sufficient. For example, you can use the display form of the display, or you can use the implicit form of expression.
  • the foregoing base station sets a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the time domain information of the reference blank symbol.
  • the terminal uses the time domain information according to the reference blank symbol.
  • the subcarriers are set with blank symbols, and the implementation principle is similar, and will not be described again.
  • time domain information of the reference blank symbol may be time domain information preset in the base station, time domain information sent by the upper layer to the base station, and time domain determined by the base station according to system resource usage. Information, etc.
  • the time domain information of the reference blank symbol may further include: first time domain information preset in the base station, second time domain information sent by the upper layer to the base station; or second preset in the base station Time domain information, first time domain information sent by the upper layer to the base station, and the like.
  • the time domain information of the reference blank symbol may be sent to the base station in the same signaling as the length information of the reference blank symbol in the foregoing embodiment, and It can be carried in different signaling to the base station, which is not limited in this application.
  • the base station sets a blank for the subcarrier corresponding to the at least one subcarrier interval according to the time domain information of the reference blank symbol and the length of the reference blank symbol.
  • the symbol there may be a plurality of ways of setting the blank symbol, which increases the flexibility of the base station to set the symbol, so that the above-mentioned method of setting the symbol is applicable to the wider scene, and further improves the spectrum efficiency of the system.
  • the embodiment relates to how the base station sets a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the above S202 can be divided into the following two cases:
  • the base station sets a blank symbol for each subcarrier spacing corresponding subcarrier according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the base station may correspond to each subcarrier spacing used by the communication system according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the subcarrier sets a blank symbol. That is, the base station is a subframe corresponding to the subcarrier in each subcarrier interval in the communication system. Set a blank symbol.
  • the base station sets a blank symbol for the subcarrier corresponding to the first subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol, and sets the subband width corresponding to the first subcarrier interval to the full bandwidth.
  • the base station may use, according to the length of the reference blank symbol and the time domain information of the reference blank symbol, the subframe corresponding to the subcarrier in the first subcarrier interval. Set a blank symbol on it.
  • the subband width corresponding to the subframe may be set to the full bandwidth, that is, the subcarrier spacing of the entire bandwidth is modified to the first subcarrier spacing within the blank symbol length.
  • the manner of setting a blank symbol can be applied to a scenario in which the bandwidth corresponding to all subcarrier spacings in the communication system cannot meet the minimum bandwidth of the blank symbol required in the electromagnetic sensing scenario, so that the blank symbol modified to the full bandwidth can be applied.
  • the flexibility of the base station to set the symbol is increased, so that the above-mentioned method of setting the symbol is applicable to the wider scene, and the spectrum efficiency of the system is further improved.
  • the method for setting a symbol provided by the embodiment of the present application, in a communication system using multiple subcarrier spacings, after the base station obtains the length of the reference blank symbol associated with the smallest subcarrier spacing among the plurality of subcarrier intervals, the reference blank may be The length of the symbol and the time domain information of the reference blank symbol set a blank symbol for the subcarriers in one or more subcarrier spacings used in the communication system.
  • the base station uses the length of the reference symbol and sets a blank symbol on a subframe corresponding to the subcarrier in one or more subcarrier intervals used in the communication system, one or more complete ones may be completed.
  • the symbol of the symbol is set to a blank symbol, and the part of a symbol is not set to a blank symbol, which causes the symbol to not work properly, which improves the spectral efficiency of the system.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 4 is a schematic structural diagram of an apparatus for setting symbols according to an embodiment of the present disclosure.
  • the apparatus may be located in a terminal, and used in a communication system using multiple subcarrier spacings.
  • the device includes: an obtaining module 11 and a setting module 12;
  • the obtaining module 11 is configured to obtain a length of the reference blank symbol, where the length of the reference blank symbol is associated with a first subcarrier spacing, where the first subcarrier spacing is a minimum subcarrier among the multiple subcarrier spacings interval;
  • the setting module 12 is configured to set a blank symbol for the subcarrier corresponding to the second subcarrier spacing in the multiple subcarrier intervals according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the time domain information of the reference blank symbol is used to indicate a position of the reference blank symbol on a subframe corresponding to the reference subcarrier; and the reference subcarrier is a subcarrier corresponding to the first subcarrier spacing.
  • the time domain information of the reference blank symbol may include: first time domain information; or the time domain information of the reference blank symbol includes: first time domain information and second time domain information; wherein the first The time domain information includes: a symbol number of the reference blank symbol; the second time domain information includes: a subframe number of the reference blank symbol, and/or a frame number of the reference blank symbol.
  • the obtaining module 11 is configured to acquire, according to a preset reference subcarrier spacing, a length of the reference blank symbol; the reference subcarrier spacing is the first subcarrier spacing; or, according to a reference blank
  • the length information of the symbol acquires the length of the reference blank symbol.
  • the length information of the reference blank symbol includes: between the multiple subcarriers
  • the obtaining module 11 is configured to obtain the length of the reference blank symbol according to the length information of the reference blank symbol, where the acquiring module 11 is configured according to the first in the subcarrier spacing set.
  • a subcarrier spacing is obtained to obtain the length of the reference blank symbol.
  • the acquiring module 11 may use, as the length of the reference blank symbol, a duration corresponding to a sum of a derivative of the first subcarrier spacing and a cyclic prefix.
  • the length information of the reference blank symbol includes: a mini-slot set composed of mini-slots corresponding to a plurality of sub-carrier intervals, and the obtaining module 11 is configured to use the length information of the reference blank symbol.
  • the acquiring the length of the reference blank symbol may be: obtaining, by the acquiring module 11, the length of the reference blank symbol according to the first minislot in the minislot set; the first minislot is The largest minislot in the minislot set, the first minislot is a minislot corresponding to the first subcarrier spacing.
  • the acquiring module 11 may use the duration corresponding to the first minislot as the length of the reference blank symbol.
  • the length information of the reference blank symbol includes any one of the following: a subcarrier spacing corresponding to the reference blank symbol, a length of the reference blank symbol, and a corresponding reference blank symbol. Mini time slot.
  • the length information of the reference blank symbol may further include: frequency domain information of the reference blank symbol.
  • the foregoing device may be used to perform the method provided in the foregoing method embodiment, and the specific implementation manner and the technical effect are similar, and details are not described herein again.
  • FIG. 5 is a schematic structural diagram of another apparatus for setting symbols according to an embodiment of the present disclosure.
  • the apparatus may be located in a base station for using a communication system with multiple subcarrier spacings.
  • the device includes: an obtaining module 21 and a setting module 22;
  • the obtaining module 21 is configured to obtain a length of the reference blank symbol, where the length of the reference blank symbol is associated with a first subcarrier spacing, where the first subcarrier spacing is a minimum subcarrier among the multiple subcarrier spacings interval;
  • the setting module 22 is configured to set a blank symbol for the subcarrier corresponding to the at least one subcarrier interval according to the length of the reference blank symbol and the time domain information of the reference blank symbol.
  • the time domain information of the reference blank symbol is used to indicate a position of the reference blank symbol on a subframe corresponding to the reference subcarrier; and the reference subcarrier is a subcarrier corresponding to the first subcarrier spacing.
  • the time domain information of the reference blank symbol may include: first time domain information; or the time domain information of the reference blank symbol includes: first time domain information and second time domain information; wherein the first The time domain information includes: a symbol number of the reference blank symbol; the second time domain information includes: a subframe number of the reference blank symbol, and/or a frame number of the reference blank symbol.
  • the setting module 22 is specifically configured to: set a blank symbol for each subcarrier spacing corresponding subcarrier according to the length of the reference blank symbol and the time domain information of the reference blank symbol; or The setting module 22 is configured to: set a blank symbol for the subcarrier corresponding to the first subcarrier spacing according to the length of the reference blank symbol and the time domain information of the reference blank symbol, and set the first subcarrier The subband width corresponding to the interval is set to the full bandwidth.
  • the obtaining module 21 is configured to acquire, according to a preset reference subcarrier interval, a length of the reference blank symbol; the reference subcarrier spacing is the first subcarrier spacing; or, according to a reference blank
  • the length information of the symbol acquires the length of the reference blank symbol.
  • the length information of the reference blank symbol includes: a subcarrier spacing set formed by the multiple subcarrier spacings, where the acquiring module 21 is configured to obtain according to the length information of the reference blank symbol.
  • the length of the reference blank symbol may be: the obtaining module 21 acquires the length of the reference blank symbol according to the first subcarrier spacing in the set of subcarrier spacings.
  • the acquiring module 21 may use the duration corresponding to the sum of the first subcarrier spacing and the cyclic prefix as the length of the reference blank symbol.
  • the length information of the reference blank symbol includes: a mini-slot set composed of mini-slots corresponding to a plurality of sub-carrier intervals, and the acquiring module 21 is configured to use the length information of the reference blank symbol.
  • the obtaining the length of the reference blank symbol may be: obtaining, by the acquiring module 21, the length of the reference blank symbol according to the first minislot in the minislot set; the first minislot is The largest minislot in the minislot set, the first minislot is a minislot corresponding to the first subcarrier spacing.
  • the acquiring module 21 may use the duration corresponding to the first minislot as the length of the reference blank symbol.
  • the length information of the reference blank symbol includes any one of the following: a subcarrier spacing corresponding to the reference blank symbol, a length of the reference blank symbol, and a corresponding reference blank symbol. Mini time slot.
  • the length information of the reference blank symbol may further include: frequency domain information of the reference blank symbol.
  • the foregoing device may be used to perform the method provided in the foregoing method embodiment, and the specific implementation manner and the technical effect are similar, and details are not described herein again.
  • each module of the above device is only a division of a logical function, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated.
  • these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware.
  • the setting module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device. Call and execute the functions of the above determination module.
  • the implementation of other modules is similar.
  • all or part of these modules can be integrated or implemented independently.
  • the processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above modules may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA).
  • ASICs Application Specific Integrated Circuits
  • DSP digital Singnal processor
  • FPGA Field Programmable Gate Array
  • the processing component can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke program code.
  • these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 6 is a schematic structural diagram of still another apparatus for setting symbols according to an embodiment of the present disclosure.
  • the apparatus may be located in a terminal for using a communication system with multiple subcarrier spacings.
  • the apparatus may include a processor 31, a transmitter 32, a receiver 33, a memory 34, and an antenna 35.
  • the memory 34, the transmitter 32 and the receiver 33 and the processor 31 can be connected via a bus.
  • the memory 34, the transmitter 32, and the receiver 33 and the processor 31 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited in the present application.
  • the processor 31 may be a general-purpose central processing unit or an ASIC, and may be one or more for controlling
  • the integrated circuit executed by the program may be a hardware circuit developed using an FPGA, and may be a baseband processor.
  • processor 31 may include at least one processing core.
  • memory 34 may include one or more of ROM, RAM, and disk storage. Memory 34 is used to store data and/or instructions needed by processor 31 to operate. The number of memories 34 can be one or more.
  • the processor 31 is configured to execute the instruction of the memory 34.
  • the processor 31 executes the instruction stored in the memory 34, the processor 31 is caused to execute the method for setting the symbol executed by the terminal, and details are not described herein.
  • FIG. 7 is a schematic structural diagram of still another apparatus for setting symbols according to an embodiment of the present disclosure.
  • the apparatus may be located in a base station, and used in a communication system using multiple subcarrier spacings.
  • the apparatus includes a processor 41, a transmitter 42, a receiver 43, a memory 44, and an antenna 45.
  • the memory 44, the transmitter 42 and the receiver 43 and the processor 41 can be connected via a bus.
  • the memory 44, the transmitter 42 and the receiver 43 and the processor 41 may not be a bus structure, but may be other structures, such as a star structure, which is not specifically limited in the present application.
  • the processor 41 may be a general-purpose central processing unit or an ASIC, and may be one or more integrated circuits for controlling program execution, may be hardware circuits developed using an FPGA, and may be a baseband processor.
  • processor 41 may include at least one processing core.
  • memory 44 may include one or more of ROM, RAM, and disk storage. Memory 44 is used to store data and/or instructions needed by processor 41 to operate. The number of memories 44 can be one or more.
  • the processor 41 is configured to execute the instruction of the memory 44.
  • the processor 41 executes the instruction stored in the memory 44, the processor 41 is caused to execute the method for setting the symbol executed by the base station, and details are not described herein.
  • a computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, computer instructions can be wired from a website site, computer, server or data center (eg Coax, fiber, digital subscriber line (DSL) or wireless (eg, infrared, wireless, microwave, etc.) is transmitted to another website, computer, server, or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • Useful media can be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).

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Abstract

本申请实施例提供一种在使用多个子载波间隔的通信系统中设置符号的方法和装置，该方法包括：终端获取参考空白符号的长度；其中，参考空白符号的长度与第一子载波间隔相关联，第一子载波间隔为多个子载波间隔中的最小子载波间隔；终端根据参考空白符号的长度和参考空白符号的时域信息，为多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号。本申请实施例提供的设置符号的方法和装置，终端在使用该参考符号的长度，在自己所使用的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。

Description

设置符号的方法和装置
本申请要求于2016年09月30日提交中国专利局、申请号为201610877415.6、申请名称为“设置符号的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术，尤其涉及一种设置符号的方法和装置。
背景技术
上述5G通信系统可以使用多个子载波间隔(numerology)，以使得该通信系统下的基站和终端设备可以在不同的业务、不同的部署场景、不同的频谱下，使用不同的子载波间隔。
目前，5G通信系统的标准讨论中，允许在子帧上空白出一些符号(空白符号)，用于一些特定的应用场景。即，这些空白符号既不传输业务数据，也不传输任何信令的符号，仅在特定场景下传输特定信号或实现特定功能。其中，上述所说的特定的应用场景例如可以为动态TDD的干扰测量场景、电磁感知测量场景、非授权频谱的先听后发(Listen-Before-Talk，LBT)场景等。
因此，在通信系统使用多个子载波间隔时，如何确定各子载波间隔中的子载波对应的空白符号的长度是一个亟待解决的问题。
发明内容
本申请实施例提供一种设置符号的方法和装置，用于解决现有技术中在通信系统使用多个子载波间隔时，如何确定各子载波间隔中的子载波对应的空白符号的长度的技术问题。
本申请实施例第一方面提供一种在使用多个子载波间隔的通信系统中设置符号的方法，包括：终端获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；所述终端根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号。
通过第一方面提供的设置符号的方法，在使用多个子载波间隔的通信系统中，终端在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为多个子载波间隔中的其他子载波间隔对应的子载波设置空白符号。通过这种方式，终端在使用该参考符号的长度，在自己所使用的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
可选的，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
示例性的，所述参考空白符号的时域信息包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
通过该可能的实施方式所提供的设置符号的方法，使得终端在根据上述参考空白符号的时域信息，以及，参考空白符号的长度，为其所使用的子载波设置空白符号时，可以有多种设置空白符号的方式，增加了终端设置符号的灵活性，使得上述设置符号的方式所适用的场景更广，进一步提高了系统的频谱效率。
可选的，所述获取参考空白符号的长度，包括：根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括：所述多个子载波间隔组成的子载波间隔集合；所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。
示例性的，所述根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度，包括：将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括：所述多个子载波间隔对应的迷你时隙组成的迷你时隙集合；所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。
示例性的，所述根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度，包括：将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。
可选的，所述参考空白符号的长度信息还包括：所述参考空白符号的频域信息。
通过该可能的实施方式所提供的设置符号的方法，使得空白符号的设置更加灵活，进而使得上述设置符号的方式所适用的场景更广。
本申请实施例第二方面提供一种在使用多个子载波间隔的通信系统中设置符号的方法，包括：基站获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号。
通过第二方面提供的设置符号的方法，在使用多个子载波间隔的通信系统中，基站在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为通信系统中所使用的一个或多个子载 波间隔中的子载波设置空白符号。通过这种方式，基站在使用该参考符号的长度，在为通信系统中所使用的一个或多个子载波间隔中的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
可选的，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
可选的，所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号，包括：所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为每个子载波间隔对应的子载波设置空白符号；或，所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述第一子载波间隔对应的子载波设置空白符号，并将所述第一子载波间隔对应的子带宽度设置为全带宽。
通过该可能的实施方式所提供的设置符号的方法，使得空白符号的设置更加灵活，进而使得上述设置符号的方式所适用的场景更广。
示例性的，所述参考空白符号的时域信息包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
通过该可能的实施方式所提供的设置符号的方法，使得终端在根据上述参考空白符号的时域信息，以及，参考空白符号的长度，为其所使用的子载波设置空白符号时，可以有多种设置空白符号的方式，增加了终端设置符号的灵活性，使得上述设置符号的方式所适用的场景更广，进一步提高了系统的频谱效率。
可选的，所述获取参考空白符号的长度，包括：根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括：所述多个子载波间隔组成的子载波间隔集合；所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。
示例性的，所述根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度，包括：将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括：所述多个子载波间隔对应的迷你时隙组成的迷你时隙集合；所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。
示例性的，所述根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度，包括：将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
可选的，所述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子 载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。
可选的，所述参考空白符号的长度信息还包括：所述参考空白符号的频域信息。
通过该可能的实施方式所提供的设置符号的方法，使得空白符号的设置更加灵活，进而使得上述设置符号的方式所适用的场景更广。
本申请实施例第三方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，所述装置包括用于执行上述第一方面以及第一方面的各种实现方式所提供的方法的模块或手段(means)。
本申请实施例第四方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，所述装置包括用于执行上述第二方面以及第二方面的各种实现方式所提供的方法的模块或手段(means)。
本申请实施例第五方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，所述装置包括处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行本申请第一方面提供的方法。
本申请实施例第六方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，所述装置包括处理器和存储器，存储器用于存储程序，处理器调用存储器存储的程序，以执行本申请第二方面提供的方法。
本申请实施例第七方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，包括用于执行以上第一方面的方法的至少一个处理元件(或芯片)。
本申请实施例第八方面提供一种在使用多个子载波间隔的通信系统中设置符号的装置，包括用于执行以上第二方面的方法的至少一个处理元件(或芯片)。
本申请实施例第九方面提供一种程序，该程序在被处理器执行时用于执行以上第一方面的方法。
本申请实施例第十方面提供一种程序产品，例如计算机可读存储介质，包括第九方面的程序。
本申请实施例第十一方面提供一种程序，该程序在被处理器执行时用于执行以上第二方面的方法。
本申请实施例第十二方面提供一种程序产品，例如计算机可读存储介质，包括第十一方面的程序。
本申请实施例提供的设置符号的方法和装置，在使用多个子载波间隔的通信系统中，基站或终端在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为任意子载波间隔中的子载波间隔对应的子载波设置空白符号。通过这种方式，使得基站或终端在使用该参考符号的长度，在子载波间隔对应的子载波设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
附图说明
图1为本申请实施例提供的子载波间隔与符号的对应关系的示意图；
图2为本申请实施例提供的一种设置符号的方法的流程示意图；
图3为本申请实施例提供的另一种设置符号的方法的流程示意图；
图4为本申请实施例提供的一种设置符号的装置的结构示意图；
图5为本申请实施例提供的另一种设置符号的装置的结构示意图；
图6为本申请实施例提供的又一种设置符号的装置的结构示意图；
图7为本申请实施例提供的又一种设置符号的装置的结构示意图。
具体实施方式
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解：
基站：又称为无线接入网(Radio Access Network，RAN)设备，是一种将终端接入到无线网络的设备，可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是长期演进(Long Term Evolution，LTE)中的演进型基站(Evolutional Node B，简称eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站等，在此并不限定。
终端：可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
本申请实施例中，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
5G通信系统可以在同一个频点下同时使用多个不同的子载波间隔(numerology)，以使得该通信系统下的基站和终端设备可以在不同的业务、不同的部署场景、不同的频谱下，使用不同的子载波间隔。其中，上述所说的业务例如可以为增强的移动宽带(enhanced Mobile Broadband，eMBB)业务、海量机器类型通信(Massive Machine Type Communication，mMTC)业务、超可靠低延迟通信(Ultra-reliable and low latency communications，URLLC)业务、多媒体广播多播业务(Multimedia Broadcast Multicast Service，MBMS)和定位业务等。上述所说的部署场景例如可以为室内热点场景、密集城区场景、郊区场景、城区宏覆盖场景、高铁场景等。上述所说的频谱例如可以为100GHz以内的任一的频率范围。
上述每个子载波间隔内的子载波之间对应的子帧(即子载波对应的传输时间间隔，该时间间隔可以包括多个符号)长度相同，对应的子帧上的符号长度也相同，但是，上述各子载波间隔之间对应的子帧长度可以相同，也可以不同；上述各子载波间隔对应的符号长度也不同。图1为本申请实施例提供的子载波间隔与符号的对应关系的示意图。假定上述通信系统使用了3个子载波间隔，分别为15kHz子载波间隔，30kHz子载波间隔和60kHz子载波间隔。基站和终端在传输eMBB业务时使用60kHz子载波间隔，基站和终端在传输mMTC业务时使用15kHz子载波间隔，基站和终端在传输URLLC业务时使用30kHz子载波间隔。图1示出了各子载波间隔在相同时间长度上对应的符号个数(这里所示的符号可以是包含了循环前缀的符号)。如图1所示，在相同时间长度上，15kHz子载波间隔对应4个符号，30kHz子载波间隔对应8个符号，60kHz子载波间隔对应16个符号。即，子载波间隔越小，子载波间隔对应的符号长度越长。通过上述示例可以看出，不同的子载波间隔对应的符号长度不同，且各子载波间隔之间对应的符号个数为倍数关系。
根据目前5G通信系统的标准讨论，5G通信系统中会存在一些特定的应用场景，需要使用一些空白出来的符号(简称：空白符号)，即使用一些既不传输业务数据也不传输信令的符号，传输特定信号或实现特定功能。这些特定的应用场景例如可以如下：
第一种场景：动态时分双工(Time-Division Duplex，TDD)干扰测量应用场景，具体地：
5G通信系统引入了动态TDD技术，即不同的小区可以采用不同的TDD配置。通过该动态TDD技术，使得各基站之间可以灵活的部署业务。但是，由于在使用动态TDD技术进行通信时，各小区中的基站和终端设备均使用相同频率的信道发送和接收数据，所以基站和/或终端设备在使用动态TDD技术发送数据时，易对相邻小区覆盖范围内正在发送数据的基站和终端造成交叉干扰。因此，为了避免交叉干扰，待发送数据的基站和/或终端可以使用空白符号发送交叉干扰感知信号，以在发送数据前进行交叉干扰测量。这样，待发送数据的基站和/或终端通过交叉干扰测量的结果，可以调整自己的发送数据时的发射功率，以达到消除或抑制交叉干扰的目的。
第二种场景：电磁感知应用场景，具体地：
由于雷达信号在遇到物体时会反射，因此，通信基站可以使用空白符号发送雷达信号，以通过设置在基站处的雷达接收机接收反射回来的雷达信号，实现对基站周围无线环境的感知，用于辅助网络规划和部署。这里所说的雷达信号，可以是线性调频调制信号(linear frequency modulation，LFM)，也可以是采用正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)调制信号逼近线性调制信号的一种调制信号。例如，通过OFDM调制信号的方式逼近LFM，具体可以通过多个相邻的OFDM符号的子载波在频域上按阶梯状上升，从而相邻的OFDM符号形成相接近的斜率，以逼近LFM波形。
第三种场景：非授权频谱下的先听后发(Listen-Before-Talk，LBT)应用场景，具体地：
授权辅助接入的长期演进(Licensed-Assisted Access using Long Term Evolution，LAA-LTE)系统通过载波聚合(Carrier Aggregation，CA)技术，可以利用5GHz免许可频谱(也称为：非授权频谱)来扩展现有的LTE服务，即使用免许可频谱承载LTE系统中的部分数据业务。因此，为了与其他系统可以共同使用免许可频谱，LAA-LTE系统下的 终端设备在使用免许可频谱发送数据时，采用先听后发(Listen-Before-Talk，LBT)信道接入机制，即基站和/或终端设备在发送数据之前，先在空白符号上通过空闲信道评测(Clear Channel Assessment，CCA)方式对免许可频谱上的所有信道进行评测，当通过评测确定免许可频谱上的所有信道空闲时，使用免许可频谱发送数据。
通过上述描述可知，5G通信系统中需要将一些符号空白出来，以支持上述特定的应用场景。同时，为了使对应各子载波间隔中的子载波的终端或基站都可以使用该空白符号，需要在每个子载波间隔的子载波对应的子帧上设置空白符号。
但是，由于5G通信系统中不同的子载波间隔中的子载波对应的符号长度不同，若按照任意子载波间隔对应的符号长度为基准，为每个子载波间隔的子载波设置空白符号，则小于该子载波间隔的其他子载波间隔对应的符号无法正常工作。继续参照图1，假定以30kHz的子载波间隔的子载波对应的符号长度为基准，将图1中所示的第1个符号设置为空白符号。此时，由于15kHz的子载波间隔的子载波对应的的第1个符号长度大于该空白符号的长度，若根据30kHz的子载波间隔的子载波对应的符号长度，为15kHz的子载波间隔的子载波设置空白符号时，会导致15kHz的子载波间隔的子载波对应第1个符号无法正常工作，降低了系统频谱效率。因此，在通信系统使用多个子载波间隔时，如何确定各子载波间隔中的子载波对应的空白符号的长度是一个亟待解决的问题。
本申请实施例考虑到这些情况，提出一种设置符号的方法，用于解决在通信系统使用多个子载波间隔时，如何确定各子载波间隔中的子载波对应的空白符号的长度的技术问题。
下面以具体地实施例对本申请的技术方案进行详细说明。下面这几个具体的实施例可以相互结合，对于相同或相似的概念或过程可能在某些实施例不再赘述。
图2为本申请实施例提供的一种设置符号的方法的流程示意图。本实施例涉及的是终端如何根据所获取的参考空白符号的长度，以及，参考空白符号的时域信息，为多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号的具体过程。如图2所示，该方法包括：
S101、终端获取参考空白符号的长度。
具体的，上述终端可以为“使用多个子载波间隔的通信系统”下的终端。该多个子载波间隔至少包括：第一子载波间隔和第二子载波间隔。其中，第一子载波间隔和第二子载波间隔可以均为终端当前所使用的子载波间隔，或者，第二子载波间隔为终端当前所使用的子载波间隔。在本实施例中，上述参考空白符号的长度，即参考空白符号在时域上所占时长与通信系统中所使用的多个子载波间隔中的最小子载波间隔(即第一子载波间隔)相关联。也就是说，上述参考空白符号的长度可以由第一子载波间隔或者与第一子载波间隔相关联的系统参数确定。
其中，本实施例不限定上述终端获取参考空白符号的长度的方式，例如：上述终端可以根据第一子载波间隔，计算获取参考空白符号的长度；还可以根据第一子载波间隔相关联的系统参数，计算获取参考空白符号的长度；还可以接收高层信令发送的参考空白符号的长度等。
S102、终端根据参考空白符号的长度和参考空白符号的时域信息，为多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号。
具体的，终端在获取到参考空白符号的长度之后，就可以根据该参考空白符号的长度 和参考空白符号的时域信息，为第二子载波间隔对应的子载波设置空白符号。即，终端为终端所使用的子载波设置空白符号。由于子载波间隔越小，子载波间隔对应的符号长度越长，且各子载波间隔之间对应的符号长度为倍数关系。因此，上述根据通信系统中所使用的最小子载波间隔所确定的参考空白符号长度，会大于或等于通信系统中其他子载波间隔对应的符号长度。即参考符号的长度等于其他子载波间隔对应的一个或多个符号的长度。这样，终端在使用该参考符号的长度，在自己所使用的子载波对应的子帧上设置为空白符号时，会将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
其中，上述参考空白符号的时域信息用于使终端确定所设置的空白符号的时域位置。可选的，上述参考空白符号的时域信息可以用于指示参考空白符号在参考子载波对应的子帧上的位置，其中，该参考子载波为第一子载波间隔对应的子载波。这样，终端就可以根据其所在的子载波间隔(即第二子载波间隔)中符号与子帧的对应关系、第一子载波间隔中符号与子帧的对应关系，以及，参考空白符号在参考子载波对应的子帧上的位置(即参考空白符号的时域信息)，确定参考空白符号在第二子载波间隔对应的子帧上的位置。终端在确定参考空白符号在第二子载波间隔对应的子帧上的位置之后，可以根据参考空白符号的长度，将其所使用的子载波对应的子帧上对应参考空白符号的位置的符号，设置为空白符号。上述终端如何设置空白符号具体可以参见现有技术，例如：终端可以采用非连续发送的方式，暂停在该符号上发送的数据，使该符号成为空白符号。可选的，上述参考空白符号的时域信息还可以用于指示参考空白符号在第二子载波间隔中的子载波对应的子帧上的位置。这样，终端可以直接根据参考空白符号的长度，将其所使用的子载波对应的子帧上对应参考空白符号的位置的符号，设置为空白符号。
可选的，若上述通信系统中的各子载波间隔之间所对应的子帧长度不同，则各子载波间隔之间所对应的符号长度可能就不是整数倍数的关系。在这种情况下，当上述参考空白符号的时域信息用于指示参考空白符号在参考子载波对应的子帧上的位置时，该时域信息所指示可以是多个连续的参考空白符号的时域信息，以使得该通信系统下的任一终端在使用该时域信息，以及，参考符号的长度，在自己所使用的子载波上设置空白符号时，会将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
需要说明的是，若上述终端根据参考空白符号的长度和参考空白符号的时域信息，将其所使用的子载波对应的子帧上的一个或多个符号设置为空白符号时，可以避开同步信道、广播信道、波束参考信号(Beam Reference Signaling，BRS)所在的符号。可选的，若上述终端将其所使用的子载波对应的子帧上的多个符号设置为空白符号时，该多个符号可以为连续的符号。
本申请实施例提供的设置符号的方法，在使用多个子载波间隔的通信系统中，终端在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为多个子载波间隔中的其他子载波间隔对应的子载波设置空白符号。通过这种方式，终端在使用该参考符号的长度，在自己所使用的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高 了系统的频谱效率。
进一步地，在上述实施例的基础上，本实施例涉及的是上述终端如何获取参考空白符号的长度的具体过程，则上述S101可以包括如下几种情况：
第一种情况：根据预设的参考子载波间隔，获取参考空白符号的长度。
具体的，当上述通信系统中预设有参考子载波间隔(即reference numerology)，且该参考子载波间隔为该通信系统中所使用的多个子载波间隔中最小的子载波间隔(即第一子载波间隔)时，上述终端可以直接根据该预设的参考子载波间隔，获取参考空白符号的长度。
具体实现时，上述终端可以将“参考子载波间隔的导数”与“参考子载波间隔中的符号对应的循环前缀”之和对应的时长，作为参考空白符号的长度。上述终端还可以将参考子载波间隔对应的迷你时隙的时长，作为参考空白符号的长度。上述终端还可以根据参考子载波间隔，采用现有的技术手段，获取参考空白符号的长度等，对此不再赘述。
第二种情况：根据参考空白符号的长度信息，获取参考空白符号的长度。
具体的，上述参考空白符号的长度信息可以携带有任一能够用于获取参考空白符号的长度的信息。例如：上述参考空白符号的长度信息可以包括：由通信系统所使用的多个子载波间隔组成的子载波间隔集合，由通信系统所使用的每个子载波间隔对应的迷你时隙所组成的迷你时隙集合，参考空白符号的长度、参考空白符号对应的子载波间隔、参考空白符号对应的迷你时隙等。在本实施例中，上述参考空白符号的长度信息可以为基站发送给终端的。具体实现时，基站可以通过现有的公共配置信令发送给终端，例如：主信息块(Master Information Block，MIB)信令，系统信息块(System Information Blocks，SIB)信令；基站还可以通过现有的专用信令发送给终端，例如：无线资源控制(Radio Resource Control，RRC)信令等；基站还可以通过将上述参考空白符号的长度信息以单独的消息发送给终端；当然，基站还可以采用其他的方式，将上述参考空白符号的长度信息指示给终端，只要是终端能够获知上述参考空白符号的长度信息的方式，均在本申请实施例的保护范围内。
以上述参考空白符号的长度信息包括由通信系统所使用的多个子载波间隔组成的子载波间隔集合为例，则上述终端可以根据该子载波间隔集合中最小的子载波间隔(即第一子载波间隔)，获取参考空白符号的长度。具体实现时，上述终端可以将“第一子载波间隔的导数”与“第一子载波间隔中的符号对应的循环前缀”之和对应的时长，作为参考空白符号的长度。示例性的，假定上述参考空白符号的长度信息所包括的子载波间隔集合为{15kHz，30kHz，60kHz}，则上述终端根据该子载波间隔集合所确定的参考空白符号的长度可以为1/15k与该15kHz子载波间隔中的符号对应的循环前缀之和。当然，上述终端还可以根据第一子载波间隔，采用现有的技术手段，获取参考空白符号的长度等，对此不再赘述。
以上述参考空白符号的长度信息包括由通信系统所使用的每个子载波间隔对应的迷你时隙所组成的迷你时隙集合为例，则上述终端可以根据该迷你时隙集合中最大的迷你时隙，获取参考空白符号的长度。其中，该迷你时隙集合中最大的迷你时隙为最小子载波间隔对应的迷你时隙，即第一子载波间隔对应的迷你时隙。具体实现时，上述终端可以将第一迷你时隙对应的时长作为参考空白符号的长度。示例性的，假定上述参考空白符号的长 度信息所包括的迷你时隙集合为{33.34us，16.67us，8.33us}，则上述终端根据该迷你时隙集合所确定的参考空白符号的长度可以为33.34us。当然，上述终端还可以根据第一迷你时隙，采用现有的技术手段，获取参考空白符号的长度等，对此不再赘述。可选的，若上述参考空白符号的长度信息所包括的迷你时隙集合仅包括一个固定的迷你时隙时，因此，上述终端在接收到这样的迷你时隙集合时，还可以将该固定的迷你时隙对应的时长作为参考空白符号的长度。
以上述参考空白符号的长度信息包括参考空白符号的长度，则上述终端可以直接根据该参考空白符号的长度信息，获取到参考空白符号的长度。其中，上述参考空白符号的长度可以为具体的时长。例如：若上述参考空白符号的长度信息包括：33.34us，则上述终端可以直接将该33.34us作为参考空白符号的长度。可选的，若上述参考空白符号的长度信息为基站通过专用信令发送给终端的，则上述参考空白符号的长度信息所包括的参考空白符号的长度可以为：参考空白符号所包括的“终端所使用的子载波对应的子帧上的符号”个数。例如：若上述参考空白符号的长度信息包括：3个，则上述终端可以将该数字与自身所使用的子载波对应的子帧上的符号长度的乘积，作为参考空白符号的长度。
以上述参考空白符号的长度信息包括参考空白符号对应的子载波间隔，则上述终端可以将“该参考空白符号对应的子载波间隔的导数”与“该子载波间隔中的符号对应的循环前缀”之和对应的时长，作为参考空白符号的长度。当然，上述终端还可以根据该参考空白符号对应的子载波间隔，采用现有的技术手段，获取参考空白符号的长度等，对此不再赘述。
以上述参考空白符号的长度信息包括参考空白符号对应的迷你时隙，则上述终端可以将该参考空白符号对应的迷你时隙的时长，作为参考空白符号的长度。当然，上述终端还可以根据该参考空白符号对应的迷你时隙，采用现有的技术手段，获取参考空白符号的长度等，对此不再赘述。
可选的，在本申请的另一实现方式中，上述参考空白符号的长度信息在包括上述信息的基础上，还可以包括：参考空白符号的频域信息，该参考空白符号的频域信息用于向终端指示通信系统中哪些频段的子载波可以设置空白符号。这样，终端在接收到参考空白符号的长度信息之后，就可以根据该长度信息中所携带的频域信息，确定自己所使用的子载波是否位于该频域信息所包括的频域范围。若是，则终端根据参考空白符号的长度信息，获取参考空白符号的长度，进而根据该参考空白符号的长度和参考空白符号的时域信息，在自己所使用的子载波上设置空白符号。若否，则终端不根据此次所接收到的参考空白符号的长度信息进行空白符号的设置。通过这种方式，使得空白符号的设置更加灵活，进而使得上述设置符号的方式所适用的场景更广。
本申请实施例提供的设置符号的方法，在使用多个子载波间隔的通信系统中，终端可以获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度，以使得终端可以根据参考空白符号的长度和参考空白符号的时域信息，为多个子载波间隔中的其他子载波间隔对应的子载波设置空白符号。通过这种方式，终端在使用该参考符号的长度，在自己所使用的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
如上述实施例所说，上述参考空白符号的时域信息可以用于指示参考空白符号在参考子载波对应的子帧上的位置，还可以用于指示参考空白符号在第二子载波间隔中的子载波对应的子帧上的位置。进一步地，在上述实施例的基础上，当上述参考空白符号的时域信息用于指示参考空白符号在参考子载波对应的子帧上的位置时，则上述参考空白符号的时域信息可以包括：第一时域信息；或，第一时域信息和第二时域信息。
其中，第一时域信息包括：参考空白符号编号，即参考空白符号在参考子载波对应的子帧上的符号编号；第二时域信息包括：参考空白符号的子帧编号(即参考空白符号在参考子载波对应的子帧上的子帧编号)、和/或、参考空白符号的帧编号(即参考空白符号在参考子载波对应的帧上的帧编号，其中，一个帧可以包括至少一个子帧)。需要说明的是，在本实施例中，不限定上述第一时域信息和第二时域信息的表现形式，以能够正确的表达上述参考空白符号编号、参考空白符号的子帧编号、参考空白符号的帧编号即可。例如：可以采用显示的表现形式，也可以采用隐式的表现形式等。
可选的，若上述参考空白符号的时域信息包括参考空白符号编号(即第一时域信息)。则上述终端可以根据该预设的参考空白符号的时域信息，以及，参考空白符号的长度，在其所使用的子载波对应的每个子帧上设置空白符号，即在每个子帧上设置空白符号。
可选的，若上述参考空白符号的时域信息包括参考空白符号编号(即第一时域信息)和参考空白符号的子帧编号(即第二时域信息)，则上述终端可以在其所使用的子载波对应参考空白符号的子帧编号的子帧上，根据参考空白符号的长度设置空白符号，即在与参考空白符号的子帧编号相同的子帧上设置空白符号。
可选的，若上述参考空白符号的时域信息包括参考空白符号编号(即第一时域信息)、参考空白符号的帧编号(即第二时域信息)，则上述终端可以在其所使用的子载波对应参考空白符号的帧编号的帧上，根据参考空白符号的长度和参考空白符号编号，在该帧的每个子帧上设置空白符号，即在与参考空白符号的帧编号相同的帧上的每个子帧上设置空白符号。
可选的，若上述参考空白符号的时域信息包括参考空白符号编号(即第一时域信息)、参考空白符号的子帧编号和参考空白符号的帧编号(即第二时域信息)，则上述终端可以在其所使用的子载波对应参考空白符号的帧编号的帧上，选择与参考空白符号的子帧编号相同编号的子帧，在该子帧上根据参考空白符号的长度和参考空白符号编号，设置空白符号，即在与参考空白符号的帧编号相同的帧中，为与参考空白符号的子帧编号相同的子帧上设置空白符号。
需要说明的是，上述参考空白符号的时域信息可以为预设在终端中的时域信息，还可以为基站发送给终端的时域信息。可选的，上述参考空白符号的时域信息还可以包括：预设在终端中的第一时域信息，由基站发送给终端的第二时域信息；或者，预设在终端中的第二时域信息，由基站发送给终端的第一时域信息等。若上述参考空白符号的时域信息为基站发送给终端的，则上述参考空白符号的时域信息可以与上述实施例所说的参考空白符号的长度信息携带在同一信令中发送给终端，还可以携带在不同的信令中发送给终端，本申请对此不进行限定。
通过上述所列举的参考空白符号的时域信息所包括的信息，使得终端在根据上述参考空白符号的时域信息，以及，参考空白符号的长度，为其所使用的子载波设置空白符号时， 可以有多种设置空白符号的方式，增加了终端设置符号的灵活性，使得上述设置符号的方式所适用的场景更广，进一步提高了系统的频谱效率。
图3为本申请实施例提供的另一种设置符号的方法的流程示意图。本实施例涉及的是基站如何根据所获取的参考空白符号的长度，以及，参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号的具体过程。如图3所示，该方法包括：
S201、基站获取参考空白符号的长度。
具体的，上述基站可以为“使用多个子载波间隔的通信系统”下的基站。其中，上述基站获取参考空白符号的长度的方式，与终端获取参考空白符号的长度的方式类似，在此不再赘述。
S202、基站根据参考空白符号的长度和参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号。
具体的，基站在获取到参考空白符号的长度之后，就可以根据该参考空白符号的长度和参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号。即，基站为通信系统中的一个或多个子载波间隔对应的子载波设置空白符号。由于子载波间隔越小，子载波间隔对应的符号长度越长，且各子载波间隔之间对应的符号长度为倍数关系。因此，上述根据通信系统中所使用的最小子载波间隔所确定的参考空白符号长度，会大于或等于通信系统中其他子载波间隔对应的符号长度。即参考符号的长度等于其他子载波间隔对应的一个或多个符号的长度。这样，基站在使用该参考符号的长度，为通信系统中的一个或多个子载波间隔中的子载波对应的子帧上设置为空白符号时，会将子载波间隔中的子载波对应的子帧上的一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
其中，上述参考空白符号的时域信息用于使终端确定所设置的空白符号的时域位置。可选的，上述参考空白符号的时域信息可以用于指示参考空白符号在参考子载波对应的子帧上的位置，其中，该参考子载波为第一子载波间隔对应的子载波。这样，基站就可以根据至少一个子载波间隔中的每个子载波间隔中符号与子帧的对应关系、第一子载波间隔中符号与子帧的对应关系，以及，参考空白符号在参考子载波对应的子帧上的位置(即参考空白符号的时域信息)，确定参考空白符号在该子载波间隔对应的子帧上的位置。基站在确定参考空白符号在该子载波间隔对应的子帧上的位置之后，可以根据参考空白符号的长度，将该子载波间隔中的子载波对应的子帧上对应参考空白符号的位置的符号，设置为空白符号。上述基站如何设置空白符号具体可以参见现有技术，例如：基站可以采用非连续发送的方式，暂停在该符号上发送的数据，使该符号成为空白符号。可选的，上述参考空白符号的时域信息还可以用于指示参考空白符号在至少一个子载波间隔中的每个子载波间隔对应的子帧上的位置。这样，基站可以直接根据参考空白符号的长度，以及，参考空白符号在至少一个子载波间隔中的每个子载波间隔对应的子帧上的位置，将该子载波间隔中的子载波对应的子帧上对应参考空白符号的位置的符号，设置为空白符号。
可选的，若上述通信系统中的各子载波间隔之间所对应的子帧长度不同，则各子载波间隔之间所对应的符号长度可能就不是整数倍数的关系。在这种情况下，当上述参考空白符号的时域信息用于指示参考空白符号在参考子载波对应的子帧上的位置时，该时域信息所指示可以是多个连续的参考空白符号的时域信息，以使得基站在使用该时域信息，以及， 参考符号的长度，在为子载波间隔的子载波上设置空白符号时，会将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
需要说明的是，若上述基站根据参考空白符号的长度和参考空白符号的时域信息，将至少一个子载波间隔中的每个子载波间隔中的子载波对应的子帧上的一个或多个符号设置为空白符号时，可以避开同步信道、广播信道、BRS所在的符号。可选的，若上述基站将至少一个子载波间隔中的每个子载波间隔中的子载波对应的子帧上的多个符号设置为空白符号时，该多个符号可以为连续的符号。
本申请实施例提供的设置符号的方法，在使用多个子载波间隔的通信系统中，基站在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为通信系统中所使用的一个或多个子载波间隔中的子载波设置空白符号。通过这种方式，基站在使用该参考符号的长度，在为通信系统中所使用的一个或多个子载波间隔中的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
进一步地，在上述实施例的基础上，本实施例涉及的是上述基站如何获取参考空白符号的长度的具体过程，则上述S201可以包括如下几种情况：
第一种情况：根据预设的参考子载波间隔，获取参考空白符号的长度。
其中，上述基站根据预设的参考子载波间隔，获取参考空白符号的长度的方式，与终端根据预设的参考子载波间隔，获取参考空白符号的长度方式类似，在此不再赘述。
第二种情况：根据参考空白符号的长度信息，获取参考空白符号的长度。
具体的，上述参考空白符号的长度信息可以携带有任一能够用于获取参考空白符号的长度的信息。例如：上述参考空白符号的长度信息可以包括：由通信系统所使用的多个子载波间隔组成的子载波间隔集合，由通信系统所使用的每个子载波间隔对应的迷你时隙所组成的迷你时隙集合，参考空白符号的长度、参考空白符号对应的子载波间隔、参考空白符号对应的迷你时隙等。在本实施例中，当上述参考空白符号的长度信息包括：参考空白符号的长度、参考空白符号对应的子载波间隔、参考空白符号对应的迷你时隙等时，上述参考空白符号的长度信息可以为高层发送给基站的，还可以预设在基站中的。其中，这里所说的高层可以为基站的上层设备，例如：核心网设备。
其中，上述基站根据参考空白符号的长度信息，获取参考空白符号的长度的方式，与终端根据参考空白符号的长度信息，获取参考空白符号的长度方式类似，在此不再赘述。
可选的，若上述参考空白符号的长度信息为高层发送给基站的，则上述参考空白符号的长度信息在包括上述信息的基础上，还可以包括：参考空白符号的频域信息，该参考空白符号的频域信息用于向基站指示通信系统中哪些频段的子载波可以设置空白符号。这样，基站在接收到参考空白符号的长度信息之后，就可以根据该长度信息中所携带的频域信息，为该频域范围内的子载波间隔中的子载波设置空白符号。通过这种方式，使得空白符号的设置更加灵活，进而使得上述设置符号的方式所适用的场景更广。
本申请实施例提供的设置符号的方法，在使用多个子载波间隔的通信系统中，基站在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据 参考空白符号的长度和参考空白符号的时域信息，为通信系统中所使用的一个或多个子载波间隔中的子载波设置空白符号。通过这种方式，基站在使用该参考符号的长度，在为通信系统中所使用的一个或多个子载波间隔中的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
如上述实施例所说，上述参考空白符号的时域信息可以用于指示参考空白符号在参考子载波对应的子帧上的位置，还可以用于指示参考空白符号在第二子载波间隔中的子载波对应的子帧上的位置。进一步地，在上述实施例的基础上，当上述参考空白符号的时域信息用于指示参考空白符号在参考子载波对应的子帧上的位置时，则上述参考空白符号的时域信息可以包括：第一时域信息；或，第一时域信息和第二时域信息。
其中，第一时域信息包括：参考空白符号编号，即参考空白符号在参考子载波对应的子帧上的符号编号；第二时域信息包括：参考空白符号的子帧编号(即参考空白符号在参考子载波对应的子帧上的子帧编号)、和/或、参考空白符号的帧编号(即参考空白符号在参考子载波对应的帧上的帧编号，其中，一个帧可以包括至少一个子帧)。需要说明的是，在本实施例中，不限定上述第一时域信息和第二时域信息的表现形式，以能够正确的表达上述参考空白符号编号、参考空白符号的子帧编号、参考空白符号的帧编号即可。例如：可以采用显示的表现形式，也可以采用隐式的表现形式等。
需要说明的是，上述基站如何根据参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号，具体可以参见上述终端如何根据参考空白符号的时域信息，为其所使用的子载波设置空白符号，其实现原理类似，对此不再赘述。
需要说明的是，上述参考空白符号的时域信息可以为预设在基站中的时域信息，还可以为高层发送给基站的时域信息，还可以为基站根据系统资源使用情况确定的时域信息等。可选的，上述参考空白符号的时域信息还可以包括：预设在基站中的第一时域信息，由高层发送给基站的第二时域信息；或者，预设在基站中的第二时域信息，由高层发送给基站的第一时域信息等。若上述参考空白符号的时域信息为高层发送给基站的，则上述参考空白符号的时域信息可以与上述实施例所说的参考空白符号的长度信息携带在同一信令中发送给基站，还可以携带在不同的信令中发送给基站，本申请对此不进行限定。
通过上述所列举的参考空白符号的时域信息所包括的信息，使得基站在根据上述参考空白符号的时域信息，以及，参考空白符号的长度，为至少一个子载波间隔对应的子载波设置空白符号时，可以有多种设置空白符号的方式，增加了基站设置符号的灵活性，使得上述设置符号的方式所适用的场景更广，进一步提高了系统的频谱效率。
进一步地，在上述实施例的基础上，本实施例涉及的是上述基站如何根据参考空白符号的长度和参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号的具体过程，则上述S202可以分为如下两种情况：
第一种情况：基站根据参考空白符号的长度和参考空白符号的时域信息，为每个子载波间隔对应的子载波设置空白符号。
具体的，在本实施例中，基站在获取到参考空白符号的长度之后，就可以根据该参考空白符号的长度和参考空白符号的时域信息，为通信系统所使用的每个子载波间隔对应的子载波设置空白符号。即，基站为通信系统中的每个子载波间隔中的子载波对应的子帧上 设置空白符号。
第二种情况：基站根据参考空白符号的长度和参考空白符号的时域信息，为第一子载波间隔对应的子载波设置空白符号，并将第一子载波间隔对应的子带宽度设置为全带宽。
具体的，在本实施例中，基站在获取到参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，在第一子载波间隔中的子载波对应的子帧上设置空白符号。同时，还可以将该子帧对应的子带宽度设置为全带宽，即在空白符号长度内，将整个带宽的子载波间隔均修改为第一子载波间隔。这种设置空白符号的方式，可以适用于通信系统中所有子载波间隔对应的带宽均不能满足电磁感知场景下所需要的空白符号的最小带宽的场景，以使得修改为全带宽的空白符号可以适用于电磁感知场景，增加了基站设置符号的灵活性，使得上述设置符号的方式所适用的场景更广，进一步提高了系统的频谱效率。
本申请实施例提供的设置符号的方法，在使用多个子载波间隔的通信系统中，基站在获取到与多个子载波间隔中最小子载波间隔相关联的参考空白符号的长度之后，可以根据参考空白符号的长度和参考空白符号的时域信息，为通信系统中所使用的一个或多个子载波间隔中的子载波设置空白符号。通过这种方式，基站在使用该参考符号的长度，在为通信系统中所使用的一个或多个子载波间隔中的子载波对应的子帧上设置为空白符号时，可以将一个或多个完整的符号设置为空白符号，不会出现将某一符号的部分设置为空白符号，导致该符号无法正常工作的情况，提高了系统的频谱效率。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
图4为本申请实施例提供的一种设置符号的装置的结构示意图，该装置可以位于终端，用于使用多个子载波间隔的通信系统中。参见图4，该装置包括：获取模块11和设置模块12；
获取模块11，用于获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；
设置模块12，用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号。
可选的，上述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。例如：上述参考空白符号的时域信息可以包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
可选的，上述获取模块11，具体用于根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括：所述多个子载波间 隔组成的子载波间隔集合，则上述获取模块11，用于根据参考空白符号的长度信息，获取所述参考空白符号的长度，具体可以为：获取模块11根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。具体实现时，上述获取模块11可以将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括：多个子载波间隔对应的迷你时隙组成的迷你时隙集合，则上述获取模块11，用于根据参考空白符号的长度信息，获取所述参考空白符号的长度，具体可以为：获取模块11根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。具体实现时，上述获取模块11可以将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。在本申请的一种实现方式中，上述参考空白符号的长度信息还可以包括：所述参考空白符号的频域信息。
上述装置可用于执行上述方法实施例提供的方法，具体实现方式和技术效果类似，这里不再赘述。
图5为本申请实施例提供的另一种设置符号的装置的结构示意图，该装置可以位于基站，用于使用多个子载波间隔的通信系统中。参见图5，该装置包括：获取模块21和设置模块22；
获取模块21，用于获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；
设置模块22，用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号。
可选的，上述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。例如：上述参考空白符号的时域信息可以包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
则在该实现方式下，上述设置模块22，具体用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为每个子载波间隔对应的子载波设置空白符号；或，上述设置模块22，具体用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述第一子载波间隔对应的子载波设置空白符号，并将所述第一子载波间隔对应的子带宽度设置为全带宽。
可选的，上述获取模块21，具体用于根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括：所述多个子载波间隔组成的子载波间隔集合，则上述获取模块21，用于根据参考空白符号的长度信息，获取 所述参考空白符号的长度，具体可以为：获取模块21根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。具体实现时，上述获取模块21可以将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括：多个子载波间隔对应的迷你时隙组成的迷你时隙集合，则上述获取模块21，用于根据参考空白符号的长度信息，获取所述参考空白符号的长度，具体可以为：获取模块21根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。具体实现时，上述获取模块21可以将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
在本申请的一种实现方式中，上述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。在本申请的一种实现方式中，上述参考空白符号的长度信息还可以包括：所述参考空白符号的频域信息。
上述装置可用于执行上述方法实施例提供的方法，具体实现方式和技术效果类似，这里不再赘述。
需要说明的是，应理解以上装置的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形式实现，部分模块通过硬件的形式实现。例如，设置模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现
图6为本申请实施例提供的又一种设置符号的装置的结构示意图，该装置可以位于终端，用于使用多个子载波间隔的通信系统中。如图6所示，该装置可以包括：处理器31、发送器32、接收器33、存储器34、天线35。
存储器34、发送器32和接收器33和处理器31可以通过总线进行连接。当然，在实际运用中，存储器34、发送器32和接收器33和处理器31之间可以不是总线结构，而可以是其它结构，例如星型结构，本申请不作具体限定。
可选地，处理器31具体可以是通用的中央处理器或ASIC，可以是一个或多个用于控 制程序执行的集成电路，可以是使用FPGA开发的硬件电路，可以是基带处理器。
可选地，处理器31可以包括至少一个处理核心。
可选地，存储器34可以包括ROM、RAM和磁盘存储器中的一种或多种。存储器34用于存储处理器31运行时所需的数据和/或指令。存储器34的数量可以为一个或多个。
上述处理器31，用于执行存储器34的指令，当处理器31执行存储器34存储的指令时，使得处理器31执行上述终端所执行的设置符号的方法，对此不再赘述。
图7为本申请实施例提供的又一种设置符号的装置的结构示意图，该装置可以位于基站，用于使用多个子载波间隔的通信系统中。该装置包括：处理器41、发送器42、接收器43、存储器44、天线45。
存储器44、发送器42和接收器43和处理器41可以通过总线进行连接。当然，在实际运用中，存储器44、发送器42和接收器43和处理器41之间可以不是总线结构，而可以是其它结构，例如星型结构，本申请不作具体限定。
可选地，处理器41具体可以是通用的中央处理器或ASIC，可以是一个或多个用于控制程序执行的集成电路，可以是使用FPGA开发的硬件电路，可以是基带处理器。
可选地，处理器41可以包括至少一个处理核心。
可选地，存储器44可以包括ROM、RAM和磁盘存储器中的一种或多种。存储器44用于存储处理器41运行时所需的数据和/或指令。存储器44的数量可以为一个或多个。
上述处理器41，用于执行存储器44的指令，当处理器41执行存储器44存储的指令时，使得处理器41执行上述基站所执行的设置符号的方法，对此不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (26)

  1. 一种在使用多个子载波间隔的通信系统中设置符号的方法，其特征在于，包括：
    终端获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；
    所述终端根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号。
  2. 根据权利要求1所述的方法，其特征在于，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
  3. 一种在使用多个子载波间隔的通信系统中设置符号的方法，其特征在于，包括：
    基站获取参考空白符号的长度；其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔；
    所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号。
  4. 根据权利要求3所述的方法，其特征在于，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
  5. 根据权利要求4所述的方法，其特征在于，所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号，包括：
    所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为每个子载波间隔对应的子载波设置空白符号；
    或，
    所述基站根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述第一子载波间隔对应的子载波设置空白符号，并将所述第一子载波间隔对应的子带宽度设置为全带宽。
  6. 根据权利要求2或4所述的方法，其特征在于，所述参考空白符号的时域信息包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；
    其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
  7. 根据权利要求1或3所述的方法，其特征在于，所述获取参考空白符号的长度，包括：
    根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；
    或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
  8. 根据权利要求7所述的方法，其特征在于，所述参考空白符号的长度信息包括：所述多个子载波间隔组成的子载波间隔集合；
    所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：
    根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度，包括：
    将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
  10. 根据权利要求7所述的方法，其特征在于，所述参考空白符号的长度信息包括：所述多个子载波间隔对应的迷你时隙组成的迷你时隙集合；
    所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：
    根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。
  11. 根据权利要求10所述的方法，其特征在于，所述根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度，包括：
    将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
  12. 根据权利要求7所述的方法，其特征在于，所述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。
  13. 根据权利要求7-12任一项所述的方法，其特征在于，所述参考空白符号的长度信息还包括：所述参考空白符号的频域信息。
  14. 一种在使用多个子载波间隔的通信系统中设置符号的装置，其特征在于，包括：
    处理器，用于获取参考空白符号的长度，并根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述多个子载波间隔中的第二子载波间隔对应的子载波设置空白符号；
    其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔。
  15. 根据权利要求14所述的装置，其特征在于，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
  16. 一种在使用多个子载波间隔的通信系统中设置符号的装置，其特征在于，包括：
    处理器，用于获取参考空白符号的长度，并根据所述参考空白符号的长度和所述参考空白符号的时域信息，为至少一个子载波间隔对应的子载波设置空白符号；
    其中，所述参考空白符号的长度与第一子载波间隔相关联，所述第一子载波间隔为所述多个子载波间隔中的最小子载波间隔。
  17. 根据权利要求16所述的装置，其特征在于，所述参考空白符号的时域信息用于指示所述参考空白符号在参考子载波对应的子帧上的位置；所述参考子载波为所述第一子载波间隔对应的子载波。
  18. 根据权利要求17所述的装置，其特征在于，所述处理器，具体用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为每个子载波间隔对应的子载波设置 空白符号；
    或，
    所述处理器，具体用于根据所述参考空白符号的长度和所述参考空白符号的时域信息，为所述第一子载波间隔对应的子载波设置空白符号，并将所述第一子载波间隔对应的子带宽度设置为全带宽。
  19. 根据权利要求15或17所述的装置，其特征在于，所述参考空白符号的时域信息包括；第一时域信息；或，所述参考空白符号的时域信息包括；第一时域信息和第二时域信息；
    其中，所述第一时域信息包括：所述参考空白符号的符号编号；所述第二时域信息包括：所述参考空白符号的子帧编号、和/或所述参考空白符号的帧编号。
  20. 根据权利要求14或16所述的装置，其特征在于，所述获取参考空白符号的长度，包括：
    根据预设的参考子载波间隔，获取所述参考空白符号的长度；所述参考子载波间隔为所述第一子载波间隔；
    或，根据参考空白符号的长度信息，获取所述参考空白符号的长度。
  21. 根据权利要求20所述的装置，其特征在于，所述参考空白符号的长度信息包括：所述多个子载波间隔组成的子载波间隔集合；
    所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：
    根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度。
  22. 根据权利要求21所述的装置，其特征在于，所述根据所述子载波间隔集合中的第一子载波间隔，获取所述参考空白符号的长度，包括：
    将所述第一子载波间隔的导数与循环前缀之和对应的时长，作为所述参考空白符号的长度。
  23. 根据权利要求20所述的装置，其特征在于，所述参考空白符号的长度信息包括：所述多个子载波间隔对应的迷你时隙组成的迷你时隙集合；
    所述根据参考空白符号的长度信息，获取所述参考空白符号的长度，包括：
    根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度；所述第一迷你时隙为所述迷你时隙集合中最大的迷你时隙，所述第一迷你时隙为所述第一子载波间隔对应的迷你时隙。
  24. 根据权利要求23所述的装置，其特征在于，所述根据所述迷你时隙集合中的第一迷你时隙，获取所述参考空白符号的长度，包括：
    将所述第一迷你时隙对应的时长作为所述参考空白符号的长度。
  25. 根据权利要求20所述的装置，其特征在于，所述参考空白符号的长度信息包括下述任一项：所述参考空白符号对应的子载波间隔、所述参考空白符号的长度、所述参考空白符号对应的迷你时隙。
  26. 根据权利要求20-25任一项所述的装置，其特征在于，所述参考空白符号的长度信息还包括：所述参考空白符号的频域信息。
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