Patent Publication Number: US-11665656-B2

Title: Information transmission method and information transmission apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This a continuation of U.S. application Ser. No. 16/314,831, filed on Jan. 2, 2019, which is a national stage application of International Application No. PCT/CN2016/091721, filed on Jul. 26, 2016 and entitled “INFORMATION TRANSMISSION METHOD AND INFORMATION TRANSMISSION APPARATUS”. The disclosures of the above applications are hereby incorporated by reference in their entireties. 
    
    
     TECHNICAL FIELD 
     The disclosure relate to the field of communications, and more particularly to an information transmission method and an information transmission device. 
     BACKGROUND 
     Along with development of networks, service requirements keep increasing and service requirement types also keep increasing. In existing network standard communication protocols, a network device and a terminal device transmit data by use of a unified numerology set. For example, the communication protocol specifies a numerology set (numerology) in a Long Term Evolution (LTE) system as follows: a radio frame is 10 ms, a radio frame includes 10 subframes, a subframe includes two time slots, a time slot includes 7 symbols, 12 continuous subcarriers in frequency and a time slot in time domain form a Resource Block (RB), each subcarrier spacing is 15 k and the like. Along with service diversification, a single numerology set already may not meet signal transmission requirements. 
     SUMMARY 
     The embodiments of the disclosure provide an information transmission method and device, which may meet signal transmission requirements. 
     According to a first aspect, the disclosure provides an information transmission method, which may include the following operations. 
     A target numerology set is determined from multiple numerology sets. 
     A synchronization signal is received or sent according to the target numerology set. 
     In combination with the first aspect, in a first possible implementation mode of the first aspect, the operation that the target numerology set is determined from the multiple target numerology sets may include the following action. 
     The target numerology set is determined from the multiple numerology sets according to at least one of the following information: a carrier frequency for sending the synchronization signal; a transmission environment of the synchronization signal; coverage of a carrier, a cell or a transmission node for sending the synchronization signal; transmit power for sending the synchronization signal; or form, height, direction and a number of antenna array elements of a transmit antenna for sending the synchronization signal. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a second possible implementation mode of the first aspect, the operation that the target numerology set is determined from the multiple target numerology sets may include the following actions. 
     A value of at least one numerology is determined according to the information. 
     The target numerology set is determined according to the value of the at least one numerology. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a third possible implementation mode of the first aspect, the synchronization signal may include a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) corresponding to the PSS. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a fourth possible implementation mode of the first aspect, the target numerology set may include a first numerology set and a second numerology set, and the first numerology set may be different from the second numerology set. 
     The operation that the synchronization signal is received or sent according to the target numerology set may include the following actions. 
     The PSS is received or sent according to the first numerology set. 
     The SSS corresponding to the PSS is received or sent according to the second numerology set. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a fifth possible implementation mode of the first aspect, the target numerology set may include the first numerology set and the second numerology set. 
     The operation that the target numerology set is determined from the multiple target numerology sets may include the following actions. The first numerology set is selected from a first subset of the multiple numerology sets, wherein the first subset includes at least one of the multiple numerology sets. The second numerology set is selected from a second subset of the multiple numerology sets. The second subset includes at least one of the multiple numerology sets, and the first subset and the second subset include at least one different numerology set. 
     The operation that the synchronization signal is received or sent according to the target numerology set may include the following actions. The PSS is received or sent according to the first numerology set. The SSS is received or sent according to the second numerology set. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a sixth possible implementation mode of the first aspect, the method may further include one of the following operations. 
     Master system information is received or sent according to the first numerology set. 
     The master system information is received or sent according to the second numerology set. 
     Alternatively, the master system information is received or sent according to a third numerology set. 
     The third numerology set may be different from the first numerology set and the second numerology set. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a seventh possible implementation mode of the first aspect, a time-domain difference of time-domain starting locations of the PSS and the SSS corresponding to the PSS may belong to a time-domain difference set and the time-domain difference set may be a finite set; and/or, a difference of frequency-domain starting locations of the PSS and the SSS corresponding to the PSS may belong to a frequency-domain difference set and the frequency-domain difference set may be a finite set. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in an eighth possible implementation mode of the first aspect, at least one of the time-domain difference of the time-domain starting locations of the PSS and the SSS corresponding to the PSS and the difference of the frequency-domain starting locations of the PSS and the SSS corresponding to the PSS may not be zero. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a ninth possible implementation mode of the first aspect, a time-frequency location occupied by the PSS and a time-frequency location occupied by the SSS corresponding to the PSS may not be overlapped. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a tenth possible implementation mode of the first aspect, the method may further include the following operation. 
     The master system information is received or sent. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in an eleventh possible implementation mode of the first aspect, the operation that the master system information is received or sent may include the following action. 
     The master system information is received or sent according to a numerology set corresponding to the master system information. The numerology set corresponding to the master system information may be the same as or different from the target numerology set. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a twelfth possible implementation mode of the first aspect, the method may further include the following operation. 
     A time-frequency location of the master system information is determined according to a time-frequency location of the synchronization signal. 
     The operation that the master system information is received or sent may include the following action. 
     The master system information is received or sent according to the time-frequency location of the master system information. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a thirteenth possible implementation mode of the first aspect, the synchronization signal may include the PSS and the SSS corresponding to the PSS. 
     The operation that the time-frequency location of the master system information is determined according to the time-frequency location of the synchronization signal may include the following actions. 
     A time-domain starting location of the master system information is determined according to at least one of a time-frequency starting location of the PSS, a time-domain starting location of the SSS or a time-domain difference of the time-domain starting locations of the PSS and the SSS corresponding to the PSS. 
     A frequency-domain starting location of the master system information is determined according to at least one of a frequency-domain starting location of the PSS, a frequency-domain starting location of the SSS or a frequency-domain difference of the frequency-domain starting locations of the PSS and the SSS corresponding to the PSS. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a fourteenth possible implementation mode of the first aspect, the synchronization signal may be configured to indicate at least one of a time-frequency location, a modulation manner or a corresponding numerology set of the master system information. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a fifteenth possible implementation mode of the first aspect, all or part of a sequence corresponding to the synchronization signal or a mask of the synchronization signal may be configured to indicate at least one of the time-frequency location, the modulation manner or the corresponding numerology set of the master system information. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a sixteenth possible implementation mode of the first aspect, the numerology set may include at least one of the following parameters: a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a Physical Resource Block (PRB), a length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a length of a Cyclic Prefix (CP) of the OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a Transmission Time Interval (TTI) or a number of TTIs in a specific length of time. 
     In combination with the first aspect or any abovementioned possible implementation mode thereof, in a seventeenth possible implementation mode of the first aspect, the multiple numerology sets or determining the target numerology set may exist in a time period from establishment to disabling of the carrier, the cell or the transmission node for sending the synchronization signal. 
     According to a second aspect, the disclosure provides an information transmission method, which may include the following operations. 
     Blind detection is performed on a target signal by use of multiple numerology sets. 
     The target signal is acquired according to a result of the blind detection. 
     In combination with the second aspect, in a first possible implementation mode of the second aspect, the target signal may be a synchronization signal and the synchronization signal may include a PSS and an SSS corresponding to the PSS. 
     In combination with the second aspect or any abovementioned possible implementation mode thereof, in a second possible implementation mode of the second aspect, the operation that blind detection is performed on the synchronization signal by use of the multiple numerology sets may include the following actions. 
     Blind detection is performed on the PSS by use of a first subset of the multiple numerology sets. 
     Blind detection is performed on the SSS by use of a second subset of the multiple numerology sets. 
     The first subset and the second subset may include different numerology sets. 
     In combination with the second aspect or any abovementioned possible implementation mode thereof, in a third possible implementation mode of the second aspect, the operation that blind detection is performed on the SSS by use of the second subset of the multiple numerology sets may include the following action. 
     Blind detection is performed on the SSS by use of the PSS, a relative location set of the PSS and the SSS corresponding to the PSS and the second subset of the multiple numerology sets, wherein the first subset and the second subset include at least one different numerology set. 
     In combination with the second aspect or any abovementioned possible implementation mode thereof, in a fourth possible implementation mode of the second aspect, the first subset may be a subset of the second subset. 
     In combination with the second aspect or any abovementioned possible implementation mode thereof, in a fifth possible implementation mode of the second aspect, the numerology set may include at least one of the following parameters: a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a PRB, a length of an OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a Transmission Time Interval (TTI), a number of TTIs in a specific length of time or a length of a signal prefix. 
     In combination with the second aspect or any abovementioned possible implementation mode thereof, in a sixth possible implementation mode of the second aspect, the multiple numerology sets for performing blind detection on the target signal may exist in a time period from establishment to disabling of a carrier, a cell or a transmission node for sending the target signal. 
     According to a third aspect, the disclosure provides an information transmission device, which is configured to execute the method in the first aspect or any optional implementation mode of the first aspect. Specifically, the information transmission device includes units configured to execute the method in the first aspect or any possible implementation mode of the first aspect. 
     According to a fourth aspect, the disclosure provides an information transmission device, which is configured to execute the method in the second aspect or any optional implementation mode of the second aspect. Specifically, the information transmission device includes units configured to execute the method in the second aspect or any possible implementation mode of the second aspect. 
     According to a fifth aspect, the disclosure provides an information transmission device, which includes a memory and a processor. The memory is configured to store an instruction. The processor is configured to execute the instruction stored in the memory. When the processor executes the instruction stored in the memory, such execution enables the processor to execute the method in the first aspect or any optional implementation mode of the first aspect. 
     According to a sixth aspect, the disclosure provides an information transmission device, which includes a memory and a processor. The memory is configured to store an instruction. The processor is configured to execute the instruction stored in the memory. When the processor executes the instruction stored in the memory, such execution enables the processor to execute the method in the second aspect or any optional implementation mode of the second aspect. 
     According to a seventh aspect, the disclosure provides a computer storage medium, in which a program code is stored. The program code is configured to indicate the method in the first aspect or any optional implementation mode of the first aspect to be executed. 
     According to an eighth aspect, the disclosure provides a computer storage medium, in which a program code is stored. The program code is configured to indicate the method in the second aspect or any optional implementation mode of the second aspect to be executed. 
     Therefore, in the embodiments of the disclosure, the target numerology set for transmission of the synchronization signal is selected from the multiple numerology sets, such that the condition that only an undiversified numerology set may be adopted for transmission of the synchronization signal may be avoided and the target numerology set may be selected according to the signal transmission requirement to transmit the synchronization signal. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       In order to describe the technical solutions of the embodiments of the disclosure more clearly, the drawings required to be used in descriptions about the embodiments or a conventional art will be simply introduced below. It is apparent that the drawings described below are only some embodiments of the disclosure. Other drawings may further be obtained by those of ordinary skill in the art according to these drawings without creative work. 
         FIG.  1    is a schematic flowchart of an information transmission method according to an embodiment of the disclosure. 
         FIG.  2    is a schematic diagram of a relative location of a PSS and a corresponding SSS according to an embodiment of the disclosure. 
         FIG.  3    is a schematic flowchart of an information transmission method according to an embodiment of the disclosure. 
         FIG.  4    is a schematic block diagram of an information transmission method according to an embodiment of the disclosure. 
         FIG.  5    is a schematic block diagram of an information transmission method according to an embodiment of the disclosure. 
         FIG.  6    is a schematic block diagram of an information transmission device according to an embodiment of the disclosure. 
         FIG.  7    is a schematic block diagram of an information transmission method according to an embodiment of the disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The technical solutions in the embodiments of the disclosure will be clearly and completely described below in combination with the drawings in the embodiments of the disclosure. It is apparent that the described embodiments are not all embodiments but part of embodiments of the disclosure. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the disclosure without creative work shall fall within the scope of protection of the disclosure. 
     Each aspect or characteristic of the disclosure may be implemented into a method, a device or a product programed with a standard and/or using an engineering technology. Term “product” used in the disclosure covers a computer program which may be accessed from any computer-readable device, carrier or medium. For example, the computer-readable medium may include, but not limited to: a magnetic storage device (for example, a hard disk, a floppy disk or a magnetic tape), an optical disk (for example, a Compact Disk (CD), a Digital Versatile Disk (DVD) or the like), a smart card and a flash memory (for example, an Erasable Programmable Read-Only Memory (EPROM), a card, a stick, a key driver or the like). In addition, various storage media described in the disclosure may represent one or more devices and/or other machine-readable media configured to store information. Term “machine-readable medium” may include, but not limited to, a wireless channel and various other media capable of storing, including and/or carrying instructions and/or data. 
     The technical solutions of the disclosure may be applied to various communication systems, for example, a Global System of Mobile Communication (GSM), a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, an Advanced Long Term Evolution (LTE-A) system, a Universal Mobile Telecommunication System (UMTS), 5th-Generation (5G) and the like. 
     The technical solutions of the embodiments of the disclosure may be applied to communication of a terminal device and a network device and may also be applied to Device to Device (D2D) communication. 
     In the embodiments of the disclosure, a network device may be a Base Transceiver Station (BTS) in the GSM or CDMA, may also be a NodeB (NB) in WCDMA, may also be an Evolved Node B (eNB or e-NodeB) in LTE, and may further be a device configured to provide access service in 5G. There are no limits made in the embodiments of the disclosure. 
     Each embodiment in the disclosure is described in combination with a terminal device and the network device. 
     The terminal device may also be called User Equipment (UE), an access terminal, a user unit, a user station, a mobile radio station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, a user device or the like. The terminal device may be a station (ST) in a Wireless Local Area Network (WLAN), and may be a cell phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device, another processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network, a terminal device in a future evolved Public Land Mobile Network (PLMN) or the like. 
     The network device may be a device configured to communicate with the terminal device. The network device may be an Access Point (AP) in the WLAN, a Base Transceiver Station (BTS) in the GSM or CDMA, may also be an NB in WCDMA, and may further be an eNB or eNodeB in LTE, or a relay station or AP, or a vehicle-mounted device, a wearable device, a network device in the future 5G network, a network device in the future evolved PLMN or the like. 
     In embodiments of the disclosure, a numerology set may include at least one of the following parameters: 
     a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a Physical Resource Block (PRB), a length of an Orthogonal Frequency Division Multiplexing (OFDM) symbol, a point number of Fourier transform, for example, Fast Fourier Transform (FFT), or inverse Fourier transform, for example, Inverse Fast Fourier Transform (IFFT), configured to generate an OFDM signal, a number of OFDM symbols in a Transmission Time Interval (TTI), a number of TTIs in a specific length of time or a length of a signal prefix. 
     The subcarrier spacing refers to a frequency interval of adjacent subcarriers, for example, 15 kHz and 60 khz. The subcarrier number at the specific bandwidth is, for example, a subcarrier number corresponding to each possible system bandwidth. The number of subcarriers in the PRB may typically be, for example, an integral multiple of 12. The number of OFDM symbols in the TTI may typically be, for example, an integral multiple of 14. The number of TTIs in a certain length of time may refer to the number of TTIs in a time length of 1 ms or 10 ms. The length of a signal prefix is, for example, a time length of a CP of a signal or whether the CP adopts a normal CP or an extended CP. 
     In an optional embodiment, of the disclosure, multiple numerology sets exist in a time period from establishment to disabling of a carrier, cell or transmission node for sending a synchronization signal and may be configured to determine a target numerology set. 
       FIG.  1    is a schematic flowchart of an information transmission method  100  according to an embodiment of the disclosure. The method  100  may be applied to a sending process or receiving process of a synchronization signal. A sending party of the synchronization signal may be a network device and a receiving party may be a terminal device. In an alternative example, the sending party of the synchronization signal may be a terminal device and the receiving party may be another terminal device. 
     As illustrated in  FIG.  1   , the method includes operations in  110  and  120 . 
     In  110 , a target numerology set is determined from multiple numerology sets. 
     In  120 , a synchronization signal is received or sent according to the target numerology set. 
     Therefore, in the embodiment of the disclosure, the target numerology set for transmission of the synchronization signal is selected from the multiple numerology sets, which may avoid the condition that only an undiversified numerology set may be adopted for transmission of the synchronization signal and may select the target numerology set based on the signal transmission requirement to transmit the synchronization signal. 
     In an optional embodiment of the disclosure, the target numerology set may be determined from the multiple numerology sets according to at least one of the following information: 
     a carrier frequency for sending the synchronization signal; 
     a transmission environment of the synchronization signal, for example, an urban environment, a highway, a high-speed railway, a mountain environment or a rural environment; 
     coverage of a carrier, a cell or a transmission node for sending the synchronization signal; 
     transmit power for sending the synchronization signal; or 
     form, height, direction and the number of antenna array elements of a transmit antenna for sending the synchronization signal. 
     In an optional embodiment of the disclosure, the antenna form includes an omnidirectional antenna, a directional antenna (which may also be divided into a circular antenna array, a linear antenna array and a panel antenna array) and the like. 
     In an optional embodiment of the disclosure, a value of at least one numerology may be determined according to the information. The target numerology set is determined according to the value of the at least one numerology. 
     For example, when the carrier frequency used for transmitting the synchronization signal is below 6 GHz, it may be determined that the subcarrier spacing for transmitting the synchronization signal may be 15 KHz or 30 KHz. After the subcarrier spacing is determined, a numerology set including the subcarrier spacing of 15 KHz or 30 KHz may be determined as the target numerology set. 
     For example, when the carrier frequency used for transmitting the synchronization signal is 60 GHz, it may be determined that the subcarrier spacing for transmitting the synchronization signal may be 60 KHz or 120 KHz. After the subcarrier spacing is determined, a numerology set including the subcarrier spacing of 60 KHz or 120 KHz may be determined as the target numerology set. 
     In an optional embodiment of the disclosure, the synchronization signal mentioned may include at least one of a PSS or an SSS corresponding to the PSS. 
     For making the disclosure convenient to understand, the implementation of signal transmission will be described below in combination with the PSS and the SSS corresponding to the PSS in detail. 
     In an optional embodiment of the disclosure, the target numerology set may include a first numerology set configured to receive or send the PSS and a second numerology set configured to receive or send the SSS. The first numerology set and the second numerology set may be same or different. 
     That the first numerology set and the second numerology set are different may refer to that values of all parameters in the first numerology set and the second numerology set are different or values of part of parameters in the first numerology set and the second numerology set are different. 
     In an optional embodiment of the disclosure, the first numerology set is selected from a first subset of the multiple numerology sets, wherein the first subset includes at least one numerology set in the multiple numerology sets. The second numerology set is selected from a second subset of the multiple target numerology sets, wherein the second subset includes at least one numerology set in the multiple numerology sets. The first subset and the second subset include at least one different numerology set. 
     In an implementation mode, the first subset and the second subset may include completely different numerology sets. 
     For example, in the embodiment of the disclosure, the first numerology set is selected from part of numerology sets (which may be called the first subset) in the multiple numerology sets to receive or send the PSS. The second numerology set is selected from the other part of numerology sets (which may be called the second subset) in the multiple numerology sets to receive or send the SSS. In this case, the first numerology set may be different from the second numerology set. 
     In an implementation mode, the first subset may be a subset of the second subset. That is, the numerology sets in the first subset belong to the second subset. 
     For example, in the embodiment of the disclosure, the second numerology set is selected from the multiple numerology sets (which may be called the second subset) to receive or send the SSS. The first numerology set is selected from part of numerology sets (which may be called the first subset) in the multiple numerology sets to receive or send the PSS. In this case, the second numerology set has a greater selection range than the first numerology set, and the first numerology set and the second numerology set may be the same or different. 
     In an optional embodiment of the disclosure, a time-domain difference t pss-sss-offset  of a time-domain starting location t pss-start  of the PSS and a time-domain starting location t sss-start  of each corresponding SSS belongs to a time-domain difference set T pss-sss-offset . And/or, a difference f pss-sss-offset  of a frequency-domain starting location f pss-start  of the PSS and a frequency-domain starting location f sss-start  of the corresponding SSS belongs to a frequency-domain difference set F pss-sss-offset . 
     In an optional embodiment, the time-domain difference set T pss-sss-offset  and F pss-sss-offset  are finite sets. 
     In an optional embodiment, the time-domain difference set T pss-sss-offset  and F pss-sss-offset  are finite sets. 
     In an optional embodiment, at least one of the difference of the time-domain starting locations of the PSS and the corresponding SSS or the difference of the frequency-domain starting locations of the PSS and the corresponding SSS may be related to the used carrier frequency. Specifically, the difference of the time-domain starting locations of the PSS and the corresponding SSS and/or the difference of the frequency-domain starting locations of the PSS and the corresponding SSS may be selected according to the used carrier frequency. 
     In the embodiment of the disclosure, t pss-sss-offset  may be a positive number, a negative number or 0. When t pss-sss-offset  is a positive number, it is indicated that the time-domain starting location of the PSS is greater than the time-domain starting location of the corresponding SSS. When t pss-sss-offset  is a positive number, it is indicated that the time-domain starting location of the PSS is less than the time-domain starting location of the corresponding SSS. When t pss-sss-offset  is 0, it is indicated that the time-domain starting location of the PSS is equal to the time-domain starting location of the corresponding SSS. 
     In the embodiment of the disclosure, f pss-sss-offset  may be a positive number, a negative number or 0. When f pss-sss-offset  is a positive number, it is indicated that the frequency-domain starting location of the PSS is greater than the frequency-domain starting location of the corresponding SSS. When f pss-sss-offset  is a positive number, it is indicated that the frequency-domain starting location of the PSS is less than the frequency-domain starting location of the corresponding SSS. When f pss-sss-offset  is 0, it is indicated that the frequency-domain starting location of the PSS is equal to the frequency-domain starting location of the corresponding SSS. 
     In an optional embodiment of the disclosure, f pss-sss-offset  and t pss-sss-offset  are not both 0. This means that time-frequency starting locations of the PSS and the SSS are different at least in time domain or in frequency domain. 
     In an optional embodiment of the disclosure, a time-frequency location occupied by the PSS and a time-frequency location occupied by the corresponding SSS are not overlapped, for example, as illustrated in  FIG.  2   . 
     In a scenario illustrated in  FIG.  2    (both of the time-domain starting location and frequency-domain starting location of the PSS are ahead of (in front of) the time-domain starting location and frequency-domain starting location of the SSS), the time-domain starting location of the PSS and the time-domain starting location of the SSS may meet the following condition: t sss-start +t sss-size &lt;=t pss-start , and the frequency-domain starting location of the PSS and the frequency-domain starting location of the SSS may meet the following condition: f pss-start +f pss-size &lt;=f sss-start . 
     It is to be understood that  FIG.  2    is only one scenario of the embodiments of the disclosure and there are other scenarios for the embodiments of the disclosure. For example, the frequency-domain starting location of the SSS is ahead of the frequency-domain location of the PSS, and then the frequency-domain starting location of the PSS and the frequency-domain starting location of the SSS may meet the following condition: f sss-start +f sss-size &lt;=f pss-start . For example, the time-domain starting location of the SSS is ahead of the time-domain starting location of the PSS, and then the frequency-domain starting location of the PSS and the frequency-domain starting location of the SSS may meet the following condition: t pss-start +t pss-size &lt;=t sss-start . 
     It is to be understood that a front position or rear position mentioned in the embodiment of the disclosure is only a relative concept and “front” or “rear” may be set according to a description practice of the drawing. 
     Reception or transmission of the synchronization signal has been described above and the following description will describe how to receive and send master system information in combination with reception or transmission of the synchronization signal. In the embodiment of the disclosure, the master system information may be called a Master Information Block (MIB). 
     In an optional embodiment of the disclosure, a time-frequency location of the master system information may be determined according to a time-frequency location of the synchronization signal. The master system information is received or sent according to the time-frequency location of the master system information. 
     In an implementation mode, a time-domain starting location of the master system information may be determined according to at least one of a time-frequency starting location of the PSS, a time-domain starting location of the SSS or a time-domain difference of the time-domain starting locations of the PSS and the corresponding SSS. A frequency-domain starting location of the master system information may be determined according to at least one of a frequency-domain starting location of the PSS, a frequency-domain starting location of the SSS or a frequency-domain difference of the frequency-domain starting locations of the PSS and the SSS. 
     For example, the time-frequency location of the MIB is determined by the locations of at least one of the PSS or the SSS and/or a time-frequency relative location (offset) f pss-sss-offset  and t pss-sss-offset  of the PSS and the SSS. 
     Specifically, the frequency-domain starting location of the MIB is the same as that of the PSS or the SSS or an integral multiple of f pss-sss-offset  and the time-domain starting location is calculated from t pss-sss-offset . For example, a relative location of the MIB and the PSS (or the SSS) is an integral multiple of t pss-sss-offset . 
     In another implementation mode, the time-frequency location of the master system information may be determined according to the time-frequency starting location of the PSS or the time-frequency location of the SSS, an element in the abovementioned time-domain difference set and an element in the frequency-domain difference set. That is, after the time-frequency starting location of the PSS (or the SSS) is determined, a time-domain difference of time-domain starting locations of the master system information and the PSS (or the SSS) may be selected from the time-domain difference set and a frequency-domain difference of time-domain locations of the master system information and the PSS (or the SSS) may be selected from the frequency-domain difference set, thereby calculating the time-frequency location of the master system information. 
     It is to be understood that in the implementation, selection of the time-domain difference of the time-domain starting locations of the master system information and the PSS (or the SSS) from the time-domain difference set may be random selection. In such case, the selected time-domain difference may be the same as or different from the selected time-domain difference of the time-domain starting locations configured for the PSS and the corresponding SSS. Selection of the frequency-domain difference of the frequency-domain starting locations of the master system information and the PSS (or the SSS) from the frequency-domain difference set may be random selection, and in such case, the selected frequency-domain difference may be the same as or different from the selected frequency-domain difference of the frequency-domain starting locations configured for the PSS and the corresponding SSS. 
     In an optional embodiment of the disclosure, after the time-frequency location of the master system information is determined, the master system information may be received or sent according to the time-frequency location of the master system information and a numerology set corresponding to the master system information. 
     The numerology set of the master system information may be the same as the numerology set for the PSS or different from the numerology set for the PSS. 
     In an alternative example, the numerology set of the master system information may be the same as the numerology set for the SSS or different from the numerology set for the SSS. 
     In an optional embodiment of the disclosure, the synchronization signal is configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. Of course, the synchronization signal may also indicate other related information of the master system information. There are no limits made thereto in the embodiments of the disclosure. 
     In an optional embodiment of the disclosure, all or part of a sequence corresponding to the synchronization signal or a mask of the synchronization signal is configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. 
       FIG.  3    is a schematic flowchart of an information transmission method  200  according to an embodiment of the disclosure. As illustrated in  FIG.  2   , the method  200  includes the following operations. 
     In  210 , blind detection is performed on a target signal by use of multiple numerology sets. 
     In  220 , the target signal is acquired according to a result of the blind detection. 
     Specifically, a sender may select a target numerology set from the multiple numerology sets for signal transmission. A receiver may perform blind detection on a synchronization signal by use of the multiple numerology sets and acquire the synchronization signal according to the result of the blind detection. 
     In an optional embodiment of the disclosure, the target signal is a synchronization signal and the synchronization signal includes a PSS and an SSS corresponding to the PSS. 
     In an optional embodiment of the disclosure, blind detection on the PSS is performed by use of a first subset of the multiple numerology sets. Blind detection on the SSS is performed by use of a second subset of the multiple numerology sets. The first subset and the second subset include at least one different numerology set. 
     In an optional embodiment of the disclosure, the first subset and the second subset include completely different numerology sets. 
     For example, in the embodiment of the disclosure, blind detection on the PSS is performed by using part of numerology sets (which may be called the first subset) in the multiple numerology sets. Blind detection on the SSS is performed by using the other part of numerology sets (which are called the second subset) in the multiple numerology sets. 
     In an optional embodiment, the first subset may be a subset of the second subset. That means, a selection range of the numerology set for sending the SSS is greater than or equal to a selection range of the numerology set for sending the PSS. 
     For example, in the embodiment of the disclosure, blind detection on the PSS is performed by use of part of the multiple numerology sets. Blind detection on the SSS is performed by use of the multiple numerology sets. A first numerology set and a second numerology set may be the same or different. 
     In an optional embodiment, blind detection may be performed on the SSS by use of the PSS, a relative location set of the PSS and the corresponding SSS and the second subset of the multiple numerology sets. 
     In an optional embodiment of the disclosure, during access of a terminal device, after a time-frequency location of the PSS is determined, blind detection may be performed at possible time-frequency locations of each SSS corresponding to the PSS according to a time-domain difference set and a frequency-domain difference set to acquire the SSS corresponding to the PSS. 
       FIG.  4    is a schematic block diagram of an information transmission device  300  according to an embodiment of the disclosure. As illustrated in  FIG.  4   , the device  300  includes a processing unit  310  and a transceiver unit  320 . 
     The processing unit  310  is configured to determine a target numerology set from multiple numerology sets. 
     The transceiver unit  320  is configured to receive or send a synchronization signal according to the target numerology set. 
     In an optional embodiment, the processing unit  310  may specifically be configured to determine the target numerology set from the multiple numerology sets according to at least one of the following information: 
     a carrier frequency for sending the synchronization signal; 
     a transmission environment of the synchronization signal; 
     coverage of a carrier, a cell or a transmission node for sending the synchronization signal; 
     transmit power for sending the synchronization signal; or 
     form, height, direction and a number of antenna array elements of a transmit antenna for sending the synchronization signal. 
     In an optional embodiment, the processing unit  310  may specifically be configured to determine a value of at least one numerology according to the information and determine the target numerology set according to the value of the at least one numerology. 
     In an optional embodiment, the synchronization signal includes a PSS and an SSS corresponding to the PSS. 
     In an optional embodiment, the target numerology set includes a first numerology set and a second numerology set. The first numerology set is different from the second numerology set. 
     The transceiver unit  320  may specifically be configured to: receive or send the PSS according to the first numerology set; and receive or send the SSS corresponding to the PSS according to the second numerology set. 
     In an optional embodiment, the target numerology set includes the first numerology set and the second numerology set. 
     The processing unit  310  may specifically be configured to select the first numerology set from a first subset of the multiple numerology sets, wherein the first subset includes at least one of the multiple numerology sets, and select the second numerology set from a second subset of the multiple numerology sets, wherein the second subset includes at least one of the multiple numerology sets. The first subset and the second subset include at least one different numerology set. 
     The transceiver unit  320  may specifically be configured to receive or send the PSS according to the first numerology set and receive or send the SSS according to the second numerology set. 
     In an optional embodiment, the transceiver unit  320  may further be configured to: receive or send master system information according to the first numerology set; or, receive or send the master system information according to the second numerology set; or, receive or send the master system information according to a third numerology set. 
     The third numerology set is different from the first numerology set and the second numerology set. 
     In an optional embodiment, a time-domain difference of time-domain starting locations of the PSS and the corresponding SSS belongs to a time-domain difference set and the time-domain difference set is a finite set; and/or, a difference of frequency-domain starting locations of the PSS and the corresponding SSS belongs to a frequency-domain difference set and the frequency-domain difference set is a finite set. 
     In an optional embodiment, at least one of the time-domain difference of the time-domain starting locations of the PSS and the corresponding SSS or the difference of the frequency-domain starting locations of the PSS and the corresponding SSS is not zero. 
     In an optional embodiment, a time-frequency location occupied by the PSS and a time-frequency location occupied by the corresponding SSS are not overlapped. 
     In an optional embodiment, the transceiver unit  320  may further be configured to receive or send the master system information. 
     In an optional embodiment, the transceiver unit  320  may specifically be configured to: receive or send the master system information according to a numerology set corresponding to the master system information. The numerology set corresponding to the master system information may be the same as or different from the target numerology set. 
     In an optional embodiment, the processing unit  310  may further be configured to determine a time-frequency location of the master system information according to a time-frequency location of the synchronization signal. 
     The transceiver unit  320  may further be configured to receive or send the master system information according to the time-frequency location of the master system information. 
     In an optional embodiment, the synchronization signal includes the PSS and the SSS corresponding to the PSS. 
     The processing unit  310  may specifically be configured to: 
     determine a time-domain starting location of the master system information according to at least one of a time-frequency starting location of the PSS, a time-domain starting location of the SSS or a time-domain difference of the time-domain starting locations of the PSS and the corresponding SSS; and 
     determine a frequency-domain starting location of the master system information according to at least one of a frequency-domain starting location of the PSS, a frequency-domain starting location of the SSS or a frequency-domain difference of the frequency-domain starting locations of the PSS and the corresponding SSS. 
     In an optional embodiment, the synchronization signal may be configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. 
     In an optional embodiment, all or part of a sequence corresponding to the synchronization signal or a mask of the synchronization signal may be configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. 
     In an optional embodiment, the numerology set includes at least one of the following parameters: 
     a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a PRB, a length of an OFDM symbol, a length of a CP of the OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a TTI or a number of TTIs in a specific length of time. 
     In an optional embodiment, the multiple numerology sets for determining the target numerology set exist in a time period from establishment to disabling of the carrier, cell or transmission node for sending the synchronization signal. 
     In an optional embodiment, the device  300  may be a terminal device or a network device. 
     It is to be understood that the device  300  illustrated in  FIG.  4    may implement a corresponding flow of the method  100  and will not be elaborated herein for brief description. 
       FIG.  5    is a schematic block diagram of a device  400  according to an embodiment of the disclosure. As illustrated in  FIG.  5   , the device  400  includes a transceiver unit  410  and a processing unit  420 . 
     The transceiver unit  410  is configured to perform blind detection on a target signal by use of multiple numerology sets. 
     The processing unit  420  is configured to acquire the target signal according to a result of the blind detection. 
     In an optional embodiment, the target signal is a synchronization signal and the synchronization signal includes a PSS and an SSS corresponding to the PSS. 
     In an optional embodiment, the transceiver unit  410  may specifically be configured to perform blind detection on the PSS by use of a first subset of the multiple numerology sets and perform blind detection on the SSS by use of a second subset of the multiple numerology sets. 
     The first subset and the second subset include different numerology sets. 
     In an optional embodiment, the transceiver unit  410  may specifically be configured to: perform blind detection on the SSS by use of the PSS, a relative location set of the PSS and the corresponding SSS and the second subset of the multiple numerology sets. The first subset and the second subset include at least one different numerology set. 
     In an optional embodiment, the first subset may be a subset of the second subset. 
     In an optional embodiment, the numerology set includes at least one of the following parameters: 
     a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a PRB, a length of an OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a TTI, a number of TTIs in a specific length of time or a length of a signal prefix. 
     In an optional embodiment, the multiple numerology sets for performing blind detection on the target signal exist in a time period from establishment to disabling of a carrier, cell or transmission node for sending the target signal. 
     In an optional embodiment, the device  400  may be a terminal device or a network device. 
     It is to be understood that the device  400  illustrated in  FIG.  5    may implement a corresponding flow of the method  200  and will not be elaborated herein for brief description. 
       FIG.  6    is a schematic block diagram of a device  500  according to an embodiment of the disclosure. The device  500  includes a processor  510 , a memory  520  and a transceiver  530 . The memory  520  may be configured to store a program instruction. The processor  510  may call the program instruction stored in the memory  520 . The transceiver  530  may be configured for external communication. In an optional embodiment, the device  500  further includes a bus system  540  for interconnecting the processor  510 , the memory  520  and the transceiver  530 . 
     Specifically, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. A target numerology set is determined from multiple numerology sets. 
     A synchronization signal is received or sent through the transceiver  530  according to the target numerology set. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations: determining the target numerology set from the multiple numerology sets according to at least one of the following information: 
     a carrier frequency for sending the synchronization signal; 
     a transmission environment of the synchronization signal; 
     coverage of a carrier, cell or transmission node for sending the synchronization signal; 
     transmit power for sending the synchronization signal; or 
     form, height, direction and a number of antenna array elements of a transmit antenna for sending the synchronization signal. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. determining a value of at least one numerology is determined according to the information. 
     The target numerology set is determined according to the value of the at least one numerology. 
     In an optional embodiment, the synchronization signal includes a PSS and an SSS corresponding to the PSS. 
     In an optional embodiment, the target numerology set includes a first numerology set and a second numerology set, and the first numerology set is different from the second numerology set. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. The PSS is received or sent according to the first numerology set; and 
     The SSS corresponding to the PSS is received or sent according to the second numerology set. 
     In an optional embodiment, the target numerology set includes the first numerology set and the second numerology set. The processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. 
     The first numerology set is selected from a first subset of the multiple numerology sets, and the first subset includes at least one of the multiple numerology sets, The second numerology set is selected from a second subset of the multiple numerology sets, the second subset includes at least one of the multiple t numerology sets and the first subset and the second subset include at least one different numerology set. 
     The PSS is received or sent through the transceiver  530  according to the first numerology set, 
     The SSS is received or sent through the transceiver  530  according to the second numerology set. 
     In an optional embodiment, the processor  510  is configured to call the instruction stored in the memory  520  to execute one of the following operations. Master system information is received or sent through the transceiver  530  according to the first numerology set. 
     The master system information is received or sent through the transceiver  530  according to the second numerology set. 
     The master system information is received or sent through the transceiver  530  according to a third numerology set. 
     The third numerology set is different from the first numerology set and the second numerology set. 
     In an optional embodiment, a time-domain difference of time-domain starting locations of the PSS and the corresponding SSS belongs to a time-domain difference set and the time-domain difference set is a finite set; and/or, a difference of frequency-domain starting locations of the PSS and the corresponding SSS belongs to a frequency-domain difference set and the frequency-domain difference set is a finite set. 
     In an optional embodiment, at least one of the time-domain difference of the time-domain starting locations of the PSS and the corresponding SSS or the difference of the frequency-domain starting locations of the PSS and the corresponding SSS is not zero. 
     In an optional embodiment, a time-frequency location occupied by the PSS and a time-frequency location occupied by the corresponding SSS are not overlapped. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operation: receiving or sending, through the transceiver  530 , the master system information. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operation: receiving or sending, through the transceiver  530 , the master system information according to a numerology set corresponding to the master system information. The numerology set corresponding to the master system information may be the same as or different from the target numerology set. 
     In an optional embodiment, the processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. A time-frequency location of the master system information is determined according to a time-frequency location of the synchronization signal. 
     The master system information is received or sent through the transceiver  530  according to the time-frequency location of the master system information. 
     In an optional embodiment, the synchronization signal includes the PSS and the SSS corresponding to the PSS. 
     The processor  510  may be configured to call the instruction stored in the memory  520  to execute the following operations. 
     A time-domain starting location of the master system information is determined according to at least one of a time-frequency starting location of the PSS, a time-domain starting location of the SSS or a time-domain difference of the time-domain starting locations of the PSS and the corresponding SSS. 
     A frequency-domain starting location of the master system information is determined according to at least one of a frequency-domain starting location of the PSS, a frequency-domain starting location of the SSS or a frequency-domain difference of the frequency-domain starting locations of the PSS and the corresponding SSS. 
     In an optional embodiment, the synchronization signal may be configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. 
     In an optional embodiment, all or part of a sequence corresponding to the synchronization signal or a mask of the synchronization signal may be configured to indicate at least one of the time-frequency location, modulation manner or corresponding numerology set of the master system information. 
     In an optional embodiment, the numerology set includes at least one of the following parameters: 
     a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a PRB, a length of an OFDM symbol, a length of a CP of the OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a TTI or a number of TTIs in a specific length of time. 
     In an optional embodiment, the multiple numerology sets for determining the target numerology set may exist in a time period from establishment to disabling of the carrier, cell or transmission node for sending the synchronization signal. 
     In an optional embodiment, the device  300  may be a terminal device or a network device. 
     It is to be understood that the device  500  illustrated in  FIG.  4    may implement a corresponding flow of the method  100  and will not be elaborated herein for brief description. 
       FIG.  7    is a schematic block diagram of a device  500  according to an embodiment of the disclosure. The device  500  includes a processor  610 , a memory  620  and a transceiver  630 . The memory  620  may be configured to store a program instruction. The processor  610  may call the program instruction stored in the memory  620 . The transceiver  630  may be configured for external communication. In an optional embodiment, the device  600  further includes a bus system  640  for interconnecting the processor  610 , the memory  620  and the transceiver  630 . 
     Specifically, the processor  610  may be configured to call the instruction stored in the memory  620  to execute the following operations. 
     Blind detection is performed on a target signal through the transceiver  630  by use of multiple numerology sets. 
     The target signal is acquired according to a result of the blind detection. 
     In an optional embodiment, the target signal is a synchronization signal and the synchronization signal includes a PSS and an SSS corresponding to the PSS. 
     In an optional embodiment, the processor  610  may be configured to call the instruction stored in the memory  620  to execute the following operations. 
     Blind detection on the PSS is performed by use of a first subset of the multiple numerology sets. 
     Blind detection on the SSS is performed by use of a second subset of the multiple numerology sets. 
     The first subset and the second subset include different numerology sets. 
     In an optional embodiment, the processor  610  may be configured to call the instruction stored in the memory  620  to execute the following operation. 
     Blind detection on the SSS is performed by use of the PSS, a relative location set of the PSS and the corresponding SSS and the second subset of the multiple numerology sets. The first subset and the second subset include at least one different numerology set. 
     In an optional embodiment, the first subset is a subset of the second subset. 
     In an optional embodiment, the numerology set includes at least one of the following parameters: 
     a subcarrier spacing, a subcarrier number at a specific bandwidth, a number of subcarriers in a PRB, a length of an OFDM symbol, a point number of Fourier transform or inverse Fourier transform for generating an OFDM signal, a number of OFDM symbols in a TTI, a number of TTIs in a specific length of time or a length of a signal prefix. 
     In an optional embodiment, the multiple numerology sets for performing blind detection on the target signal may exist in a time period from establishment to disabling of a carrier, cell or transmission node for sending the target signal. 
     In an optional embodiment, the device  600  may be a terminal device or a network device. 
     It is to be understood that the device  600  illustrated in  FIG.  7    may implement a corresponding flow of the method  200  and will not be elaborated herein for brief description. 
     Those of ordinary skill in the art may realize that the units and algorithm operations of each example described in combination with the embodiments disclosed in the disclosure may be implemented by electronic hardware or a combination of computer software and the electronic hardware. Whether these functions are executed in a hardware or software manner depends on specific applications and design constraints of the technical solutions. Professionals may realize the described functions for each specific application by use of different methods, but such realization shall fall within the scope of the disclosure. 
     Those skilled in the art may clearly learn about that specific working processes of the system, device and unit described above may refer to the corresponding processes in the method embodiment and will not be elaborated herein for convenient and brief description. 
     In some embodiments provided by the disclosure, it is to be understood that the disclosed system, device and method may be implemented in another manner. For example, the device embodiment described above is only schematic, and for example, division of the units is only logic function division, and other division manners may be adopted during practical implementation. For example, multiple units or components may be combined or integrated into another system, or some characteristics may be neglected or not executed. In addition, coupling or direct coupling or communication connection between each displayed or discussed component may be indirect coupling or communication connection, implemented through some interfaces, of the device or the units, and may be electrical and mechanical or adopt other forms. 
     The units described as separate parts may or may not be physically separated, and parts displayed as units may or may not be physical units, and namely may be located in the same place, or may also be distributed to multiple network units. Part or all of the units may be selected to achieve the purpose of the solutions of the embodiments according to a practical requirement. 
     In addition, each functional unit in each embodiment of the disclosure may be integrated into a processing unit, each unit may also exist independently, and two or more than two units may also be integrated into a unit. 
     When being realized in form of software functional unit and sold or used as an independent product, the function may also be stored in a computer-readable storage medium. Based on such an understanding, the technical solutions of the disclosure substantially or parts making contributions to the conventional art or part of the technical solutions may be embodied in form of software product, and the computer software product is stored in a storage medium, including a plurality of instructions configured to enable a computer device (which may be a personal computer, a server, a network device or the like) to execute all or part of the operations of the method in each embodiment of the disclosure. The abovementioned storage medium includes: various media capable of storing program codes such as a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk. 
     The above is only the specific implementation mode of the disclosure and not intended to limit the scope of protection of the disclosure. Any variations or replacements apparent to those skilled in the art within the technical scope disclosed by the disclosure shall fall within the scope of protection of the disclosure. Therefore, the scope of protection of the disclosure shall be subject to the scope of protection of the claims.