WO2018028490A1 - 信息传输方法、终端及网络设备 - Google Patents

信息传输方法、终端及网络设备 Download PDF

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Publication number
WO2018028490A1
WO2018028490A1 PCT/CN2017/095652 CN2017095652W WO2018028490A1 WO 2018028490 A1 WO2018028490 A1 WO 2018028490A1 CN 2017095652 W CN2017095652 W CN 2017095652W WO 2018028490 A1 WO2018028490 A1 WO 2018028490A1
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Prior art keywords
time
synchronization signal
frequency resource
frequency
symbol
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PCT/CN2017/095652
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English (en)
French (fr)
Inventor
成艳
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17838620.7A priority Critical patent/EP3484218A4/en
Priority to BR112019002702-5A priority patent/BR112019002702A2/pt
Priority to JP2019507273A priority patent/JP2019530287A/ja
Publication of WO2018028490A1 publication Critical patent/WO2018028490A1/zh
Priority to US16/271,175 priority patent/US20190173600A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0073—Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0076—Acquisition of secondary synchronisation channel, e.g. detection of cell-ID group
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H04J11/0079—Acquisition of downlink reference signals, e.g. detection of cell-ID
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to an information transmission method, a terminal, and a network device.
  • the 5th Generation (5G) communication system or the New Radio (NR) communication system is dedicated to supporting higher system performance, supporting different services, different deployment scenarios and different spectrums.
  • the foregoing services may be, for example, enhanced mobile broadband (eMBB) services, machine type communication (MTC) services, and ultra-reliable low latency communications (URLC).
  • eMBB enhanced mobile broadband
  • MTC machine type communication
  • URLC ultra-reliable low latency communications
  • MBMS Multimedia Broadcast Multicast Service
  • location services may be, for example, an indoor hotspot scene, a dense urban scene, a suburban scene, an urban macro scene, a high-speed rail scene, and the like.
  • the above-mentioned spectrum may be, for example, any frequency range of 100 GHz or less.
  • the embodiments of the present application provide an information transmission method, a terminal, and a network device, to flexibly support a plurality of different application scenarios.
  • an information transmission method which may include:
  • the terminal determines that the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal;
  • the terminal detects the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal.
  • different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method including the terminal and the network device can be flexibly applied to different application scenarios.
  • the terminal uses the same subcarrier interval to detect the synchronization signal, so that the terminal does not need to blindly check the synchronization signal.
  • the subcarrier spacing used by the synchronization signal is identified, the time for detecting the synchronization signal by the terminal is shortened, and the time for the terminal to synchronize with the serving cell is shortened, that is, the time for the terminal to access the serving cell is shortened.
  • the synchronization signal When determining the largest subcarrier interval detection synchronization signal in the subcarrier spacing set corresponding to the serving cell, the synchronization signal can be made to be resistant to the Doppler shift caused by the high speed scene, and the detection success rate of the synchronization signal is provided.
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal.
  • the synchronization signal of the serving cell and the coverage of the broadcast channel of the serving cell can be expanded, and the synchronization signal of the serving cell and the robustness of the broadcast channel of the serving cell can be improved.
  • the method may further include:
  • the terminal determines the time-frequency resource that carries the system information according to the sequence corresponding to the synchronization signal.
  • the terminal determines the time-frequency resource of the bearer system information according to the sequence corresponding to the synchronization signal, including:
  • the terminal determines that the time-frequency resource of the bearer system information is the first time-frequency resource
  • the terminal determines that the time-frequency resource of the bearer system information is the second time-frequency resource
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain location corresponding to the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is fixed to the frequency domain location interval corresponding to the time-frequency resource carrying the synchronization signal Frequency offset.
  • the time-frequency resource of the bearer system information is determined to be the first time-frequency resource or the second time-frequency resource according to the sequence corresponding to the synchronization signal, so that the system can flexibly adopt the first time-frequency according to the actual application scenario and actual requirements.
  • Resources and/or second time-frequency resources carry system information to better support dynamic TDD, better support for forward compatibility, and better support for multi-beam transmission.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or,
  • the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed in a frequency domain of the time-frequency resource carrying the synchronization signal. On both sides of the location.
  • the first sequence is generated by the two 31 long sequences according to the first combination manner; the second sequence is generated by the two 31 long sequences according to the second combination manner; the first combination manner is The second combination is different.
  • the system information includes a symbol location indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal.
  • the terminal determines that the synchronization signal is carried in a time domain position of a radio frame, and can implement frame timing of the terminal under the multi-beam transmission.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries system information.
  • the synchronization signal is a secondary synchronization signal.
  • the embodiment of the present application further provides an information transmission method, which may include:
  • the terminal determines a sequence corresponding to the synchronization signal
  • the terminal determines the time-frequency resource that carries the system information according to the sequence corresponding to the synchronization signal.
  • the different time-frequency resources of the bearer system information may correspond to different application scenarios, and different sequences corresponding to the synchronization signals may be corresponding to different application scenarios, thereby making the information transmission method between the terminal and the network device flexible. Applied to different application scenarios.
  • the determining, by the terminal, the time-frequency resources of the bearer system information according to the sequence corresponding to the synchronization signal includes:
  • the terminal determines that the time-frequency resource of the bearer system information is the first time-frequency resource
  • the terminal determines that the time-frequency resource of the bearer system information is the second time-frequency resource
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain location corresponding to the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is fixed to the frequency domain location interval corresponding to the time-frequency resource carrying the synchronization signal Frequency offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination manner; the second sequence is generated by the two 31 long sequences according to the second combination manner; the first combination manner is The second combination is different.
  • the embodiment of the present application may further provide an information transmission method, including:
  • the network device determines that the largest subcarrier spacing in the set of subcarrier spacings corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal;
  • the network device transmits the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal.
  • different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method including the terminal and the network device can be flexibly applied to different application scenarios.
  • the method before the network device sends the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal, the method further includes:
  • the network device determines, according to the subcarrier spacing corresponding to the synchronization signal, a cyclic prefix set corresponding to the subcarrier spacing;
  • the network device determines, according to the cyclic prefix set, that the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix set.
  • the network device sends the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal, including:
  • the network device sends the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal and the cyclic prefix corresponding to the symbol of the synchronization signal. number.
  • the method may further include:
  • the network device determines a time-frequency resource that carries system information
  • the network device determines a sequence corresponding to the synchronization signal according to the time-frequency resource that carries the system information.
  • the different time-frequency resources of the bearer system information may correspond to different application scenarios, and different sequences corresponding to the synchronization signals may be corresponding to different application scenarios, thereby making the information transmission method between the terminal and the network device flexible. Applied to different application scenarios.
  • the determining, by the network device, the sequence corresponding to the synchronization signal according to the time-frequency resource of the system information may include:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain location spacing of the time-frequency resource carrying the synchronization signal are fixed. Offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed in a frequency domain of the time-frequency resource carrying the synchronization signal. On both sides of the location.
  • the network device determines, according to the time-frequency resource that carries the system information, a sequence corresponding to the synchronization signal, including:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination
  • the second sequence is generated by the two 31 long sequences according to the second combination, the first combination manner The second combination is different.
  • system information includes a symbol position indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries system information.
  • the synchronization signal is a secondary synchronization signal.
  • an information transmission method includes:
  • the network device determines a time-frequency resource that carries system information
  • the network device determines a sequence corresponding to the synchronization signal according to the time-frequency resource that carries the system information.
  • the network device determines, according to the time-frequency resource that carries the system information, a sequence corresponding to the synchronization signal, including:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain location spacing of the time-frequency resource carrying the synchronization signal are fixed. Offset.
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the network device determines, according to the time-frequency resource that carries the system information, a sequence corresponding to the synchronization signal, including:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination
  • the second sequence is generated by the two 31 long sequences according to the second combination, the first combination manner The second combination is different.
  • the embodiment of the present application further provides a terminal, including:
  • a receiving unit configured to receive information sent by the network device
  • the processing unit is configured to determine a subcarrier spacing corresponding to the synchronization signal, where the subcarrier spacing corresponding to the synchronization signal is the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell carrying the synchronization signal, and according to the subcarrier spacing corresponding to the synchronization signal
  • the synchronization signal is detected with the information sent by the received network device.
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal.
  • the processing unit is further configured to determine a time-frequency resource that carries the system information according to the sequence corresponding to the synchronization signal.
  • the processing unit is configured to: if the sequence corresponding to the synchronization signal is the first sequence, determine that the time-frequency resource of the bearer system information is the first time-frequency resource; if the synchronization signal corresponds to The sequence is the second sequence, and the time-frequency resource that carries the system information is determined to be the second time-frequency resource;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain location corresponding to the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is fixed to the frequency domain location interval corresponding to the time-frequency resource carrying the synchronization signal Frequency offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed in a frequency domain of the time-frequency resource carrying the synchronization signal. On both sides of the location.
  • the first sequence is generated by the two 31 long sequences according to the first combination manner; the second sequence is generated by the two 31 long sequences according to the second combination manner; the first combination manner is The second combination is different.
  • system information includes a symbol position indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries system information.
  • the synchronization signal is a secondary synchronization signal.
  • the embodiment of the present application further provides a terminal, including:
  • a receiving unit configured to receive a synchronization signal sent by the network device
  • a processing unit configured to determine a sequence corresponding to the synchronization signal according to the synchronization signal sent by the received network device, and further The time-frequency resource carrying the system information is determined according to the sequence corresponding to the synchronization signal.
  • the processing unit is configured to: if the sequence corresponding to the synchronization signal is the first sequence, determine that the time-frequency resource of the bearer system information is the first time-frequency resource; if the synchronization signal corresponds to The sequence is the second sequence, and the time-frequency resource that carries the system information is determined to be the second time-frequency resource;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain location corresponding to the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is fixed to the frequency domain location interval corresponding to the time-frequency resource carrying the synchronization signal Frequency offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination manner
  • the second sequence is generated by the two 31 long sequences according to the second combination manner; the first combination manner is The second combination is different.
  • the embodiment of the present application further provides a network device, including:
  • a processing unit configured to determine a subcarrier spacing corresponding to the synchronization signal, where the subcarrier spacing corresponding to the synchronization signal is the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell carrying the synchronization signal;
  • a sending unit configured to send a synchronization signal according to a subcarrier interval corresponding to the synchronization signal.
  • the processing unit is further configured to: determine, according to the subcarrier spacing corresponding to the synchronization signal, a cyclic prefix set corresponding to the subcarrier spacing; and determine, according to the cyclic prefix set, the symbol corresponding to the bearer synchronization signal.
  • the cyclic prefix is the longest cyclic prefix in the set of cyclic prefixes.
  • the sending unit is specifically configured to send the synchronization signal according to a cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal and the symbol of the bearer synchronization signal.
  • the processing unit is further configured to determine a time-frequency resource that carries system information, and determine a sequence corresponding to the synchronization signal according to the time-frequency resource that carries the system information.
  • the processing unit is configured to: if the time-frequency resource carrying the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence;
  • the time-frequency resource is the second time-frequency resource, and the sequence corresponding to the synchronization signal is determined to be the second sequence;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain location spacing of the time-frequency resource carrying the synchronization signal are fixed. Offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed in a frequency domain of the time-frequency resource carrying the synchronization signal. On both sides of the location.
  • the processing unit is configured to: if the time-frequency resource carrying the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence;
  • the time-frequency resource is the second time-frequency resource, and the sequence corresponding to the synchronization signal is determined to be the second sequence;
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination
  • the second sequence is generated by the two 31 long sequences according to the second combination, the first combination manner The second combination is different.
  • the system information includes a symbol position indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries system information.
  • the synchronization signal is a secondary synchronization signal.
  • the embodiment of the present application further provides a network device, including:
  • a processing unit configured to determine a time-frequency resource that carries system information; and determine a sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information;
  • a sending unit for transmitting a synchronization signal.
  • the processing unit is configured to: if the time-frequency resource carrying the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence; if the system information is carried The time-frequency resource is the second time-frequency resource, and the sequence corresponding to the synchronization signal is determined to be the second sequence;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain location spacing of the time-frequency resource carrying the synchronization signal are fixed. Offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the processing unit is configured to: if the time-frequency resource carrying the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence;
  • the time-frequency resource is the second time-frequency resource, and the sequence corresponding to the synchronization signal is determined to be the second sequence;
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination
  • the second sequence is generated by the two 31 long sequences according to the second combination, the first combination manner The second combination is different.
  • the information transmission method, the terminal, and the network device provided by the embodiment of the present application, wherein the network device may determine that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal. And sending the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal to send the synchronization signal, and the terminal determines that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, The synchronization signal is then detected based on the subcarrier spacing corresponding to the synchronization signal.
  • the different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method between the terminal and the network device can be flexibly applied to different application scenarios.
  • FIG. 2 is a flowchart of an information transmission method according to Embodiment 2 of the present application.
  • 3 is a corresponding relationship diagram between a first time-frequency resource and a time-frequency resource carrying the synchronization signal
  • FIG. 4 is a correspondence diagram of a second time-frequency resource and a time-frequency resource carrying the synchronization signal
  • FIG. 5 is a flowchart of another information transmission method according to Embodiment 2 of the present application.
  • FIG. 6 is a flowchart of still another method for transmitting information according to Embodiment 2 of the present application.
  • FIG. 7 is a flowchart of an information transmission method according to Embodiment 3 of the present application.
  • FIG. 8 is a flowchart of another information transmission method according to Embodiment 3 of the present application.
  • FIG. 9 is a schematic structural diagram of a terminal according to Embodiment 4 of the present application.
  • FIG. 10 is a schematic structural diagram of a terminal according to Embodiment 5 of the present application.
  • FIG. 11 is a schematic structural diagram of a network device according to Embodiment 6 of the present application.
  • FIG. 12 is a schematic structural diagram of a network device according to Embodiment 7 of the present application.
  • the information transmission method, device, terminal and network device provided by the embodiments of the present application can be applied to a 5G communication system, an NR communication system, and a more advanced evolution communication system based on the same, to support a plurality of different application scenarios. .
  • the terminal involved in the following embodiments of the present application may be a terminal of a 5G communication technology, an NR communication technology, or a subsequent more advanced communication technology; each network device may be a 5G communication technology, an NR communication technology, or a subsequent more advanced communication technology.
  • Internet equipment may be a terminal of a 5G communication technology, an NR communication technology, or a subsequent more advanced communication technology.
  • the terminal may be a wireless terminal or a wired terminal.
  • the wireless terminal can be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer built-in or in-vehicle mobile device that is wireless with The access network exchanges languages and/or data.
  • a wireless terminal may also be called a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, and a Remote Terminal.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the network device may be an access network device, such as a base station, or an access point (AP).
  • the base station described in the present application is a form of a radio station, and refers to a radio transceiver station that transmits information between a mobile communication switching center and a mobile telephone terminal in a certain radio coverage area; or may be a finger joint A device in the network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to an Internet Protocol (IP) packet as a router between the wireless terminal and the rest of the access network, wherein the rest of the access network can include an internet protocol ( IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a Base Transceiver Station (BTS), a Node Base (NodeB), an evolved base station (eNB), or the like, and is not limited in this application.
  • the network device may determine that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and according to the synchronization.
  • the subcarrier corresponding to the signal sends the synchronization signal to send the synchronization signal
  • the terminal determines that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and then according to the synchronization signal.
  • the corresponding subcarrier spacing detects the synchronization signal.
  • the different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method between the terminal and the network device can be flexibly applied to different application scenarios.
  • FIG. 1 is a flowchart of an information transmission method according to Embodiment 1 of the present application. As shown in FIG. 1, the method can include:
  • the network device determines a subcarrier spacing corresponding to the synchronization signal.
  • the network device determines the subcarrier spacing corresponding to the synchronization signal, and the subcarrier spacing corresponding to the synchronization signal may be the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal.
  • the network device may determine, according to the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal, that the maximum subcarrier spacing in the subcarrier spacing set is the subcarrier spacing corresponding to the synchronization signal.
  • the serving cell may be a primary serving cell of the terminal, or may be a secondary serving cell of the terminal.
  • the serving cell may also be referred to as a carrier, that is, one serving cell is a carrier.
  • the network device may be the largest subcarrier spacing in the subcarrier spacing set. That is The 30 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • the network device determines a subcarrier spacing corresponding to the synchronization signal, and the subcarrier spacing corresponding to the synchronization signal may be the smallest subcarrier spacing set corresponding to the serving cell carrying the synchronization signal. Carrier spacing.
  • the network device may determine, according to the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal, that the smallest subcarrier spacing in the subcarrier spacing set is the subcarrier spacing corresponding to the synchronization signal.
  • the network device may be the largest subcarrier spacing in the subcarrier spacing set. That is, the 15 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • the network device determines a subcarrier spacing corresponding to the synchronization signal, and the subcarrier spacing corresponding to the synchronization signal may be the first subcarrier spacing set corresponding to the serving cell that carries the synchronization signal.
  • a carrier spacing where the first subcarrier spacing is not the smallest subcarrier spacing in the subcarrier spacing set, and is not the largest subcarrier spacing in the subcarrier spacing set, for example, in the subcarrier spacing set. The second largest subcarrier spacing.
  • the network device may be the largest of the subcarrier spacing sets.
  • the subcarrier spacing that is, the 30 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • the network device sends the synchronization signal by using the same subcarrier spacing, so that the terminal does not need to be used.
  • Blind detection of the synchronization signal to identify the subcarrier spacing used by the synchronization signal shortens the time for the terminal to detect the synchronization signal, shortens the time for the terminal to synchronize with the serving cell, that is, shortens the time for the terminal to access the serving cell, and improves the terminal detection synchronization.
  • the success rate of the signal improves the success rate of the terminal accessing the cell.
  • the different subcarrier spacings in the subcarrier spacing set corresponding to the serving cell are generally applicable to different scenarios, for example, the large subcarrier spacing is used for at least one scenario such as high frequency, low delay traffic, and high speed transmission, and the small subcarrier spacing is used for At least one of the low frequency and large coverage scenes is common. Therefore, in the information transmission method of the embodiment of the present application, the synchronization signal and/or the broadcast channel can be sent by using the same subcarrier spacing for different subcarrier spacings in the subcarrier spacing set corresponding to the serving cell, which can be implemented in different scenarios. Unified synchronization signal and system information transmission method.
  • the synchronization signal when the synchronization signal is transmitted by using the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell, the synchronization signal can be made to resist the Doppler shift caused by the high speed scene, and the detection success rate of the synchronization signal is provided.
  • the step S101 may further include: determining, by the network device, a subcarrier spacing corresponding to the broadcast channel, where the subcarrier spacing corresponding to the broadcast channel is the same as the subcarrier spacing corresponding to the synchronization signal.
  • the subcarrier spacing corresponding to the broadcast channel may be the largest subcarrier spacing in the set of subcarrier spacings corresponding to the serving cell.
  • the network device sends the synchronization signal according to a subcarrier interval corresponding to the synchronization signal.
  • the network device may generate a symbol (such as an OFDM symbol) corresponding to the synchronization signal according to a subcarrier interval corresponding to the synchronization signal, and send the signal to the terminal.
  • a symbol such as an OFDM symbol
  • step S102 may further include:
  • the network device determines a cyclic prefix corresponding to the symbol that carries the synchronization signal, and the cyclic prefix may be the longest cyclic prefix in a Cyclic Prefix (CP) corresponding to the subcarrier spacing corresponding to the synchronization signal;
  • CP Cyclic Prefix
  • the network device sends the synchronization signal according to the cyclic prefix corresponding to the symbol carrying the synchronization signal and the subcarrier interval corresponding to the synchronization signal.
  • the synchronization signals in the embodiments of the present application may include, for example, a primary synchronization signal and a secondary synchronization signal.
  • the symbols mentioned in the embodiments of the present application may be, for example, single-carrier frequency-division multiple access (SC-FDMA) symbols, or may be orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.
  • SC-FDMA single-carrier frequency-division multiple access
  • OFDM Orthogonal Frequency Division Multiplexing
  • the terminal determines a subcarrier spacing corresponding to the synchronization signal.
  • the terminal determines the subcarrier spacing corresponding to the synchronization signal, and the subcarrier spacing corresponding to the synchronization signal may be the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal.
  • the terminal may determine, according to the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal, that the maximum subcarrier spacing in the subcarrier spacing set is the subcarrier spacing corresponding to the synchronization signal.
  • the terminal may be the largest subcarrier spacing in the subcarrier spacing set, That is, the 30 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • step S103 the terminal determines a subcarrier spacing corresponding to the synchronization signal, and the subcarrier spacing corresponding to the synchronization signal may be the smallest subcarrier in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal. interval.
  • the terminal may determine, according to the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal, that the minimum subcarrier spacing in the subcarrier spacing set is the subcarrier spacing corresponding to the synchronization signal.
  • the network device may be the largest subcarrier spacing in the subcarrier spacing set. That is, the 15 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • the terminal determines a subcarrier spacing corresponding to the synchronization signal, where the subcarrier spacing corresponding to the synchronization signal may be the first subcarrier in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal.
  • the first subcarrier spacing is not the smallest subcarrier spacing in the subcarrier spacing set, and is not the largest subcarrier spacing in the subcarrier spacing set, for example, may be the first in the subcarrier spacing set. Two subcarrier spacings.
  • the network device may be the largest of the subcarrier spacing sets.
  • the subcarrier spacing that is, the 30 kHz subcarrier spacing is determined as the subcarrier spacing corresponding to the synchronization signal.
  • the terminal uses the same subcarrier spacing to detect the synchronization signal, so that the terminal does not need to
  • the synchronization signal is blindly detected to identify the subcarrier spacing used by the synchronization signal, which shortens the time for the terminal to detect the synchronization signal, shortens the time for the terminal to synchronize with the serving cell, that is, shortens the time for the terminal to access the serving cell, and improves the terminal detection synchronization signal.
  • the success rate of the terminal increases the success rate of the terminal accessing the cell.
  • the different subcarrier spacings in the subcarrier spacing set corresponding to the serving cell are generally applicable to different scenarios, for example, the large subcarrier spacing is used for at least one scenario such as high frequency, low delay traffic, and high speed transmission, and the small subcarrier spacing is used for At least one of the low frequency and large coverage scenes is common. Therefore, in the information transmission method of the embodiment of the present application, the synchronization signal and/or the broadcast channel can be sent by using the same subcarrier spacing for different subcarrier spacings in the subcarrier spacing set corresponding to the serving cell, which can be implemented in different scenarios. Unified synchronization signal and system information transmission method.
  • the terminal detects the synchronization signal by using the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell, the synchronization signal can be made to resist the Doppler shift caused by the high speed scene, and the detection success rate of the synchronization signal is provided. .
  • the method may further include: determining, by the terminal, a subcarrier spacing corresponding to the broadcast channel, where the broadcast channel corresponds to a subcarrier
  • the wave spacing is the same as the subcarrier spacing corresponding to the synchronization signal.
  • the subcarrier spacing corresponding to the broadcast channel may be the largest subcarrier spacing in the set of subcarrier spacings corresponding to the serving cell. Other descriptions are as above, and will not be described again here.
  • the terminal detects the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal.
  • step S104 the terminal detects the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal.
  • different local sequences may be used to correlate with the received signals to determine a sequence corresponding to the synchronization signal.
  • the terminal may generate a corresponding OFDM symbol according to the subcarrier spacing corresponding to the synchronization signal, and use the generated OFDM symbol to correlate with the received signal, so the user equipment needs to first determine the subcarrier spacing corresponding to the synchronization signal, and then according to the synchronization.
  • the subcarrier spacing corresponding to the signal detects the synchronization signal.
  • the step S104 may further include: the terminal determining a cyclic prefix corresponding to the symbol carrying the synchronization signal. At this time, the terminal may determine, according to the detected synchronization signal, a cyclic prefix corresponding to the symbol carrying the synchronization signal.
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal.
  • the terminal may further determine the cell ID of the serving cell of the terminal according to the sequence corresponding to the synchronization signal.
  • the serving cell of the terminal may be, for example, a serving cell configured by the network device for the terminal, or a serving cell that is serving the terminal, or a serving cell that the terminal is accessing.
  • the step S104 may include:
  • the terminal receives the information sent by the network device
  • the terminal detects the synchronization signal according to a subcarrier interval corresponding to the synchronization signal and information sent by the received network device.
  • the information sent by the network device may or may not include a synchronization signal, but the terminal performs the foregoing operations. Only when the information sent by the network device does not include the synchronization signal, the terminal cannot detect the synchronization signal. When the information transmitted by the network device includes a synchronization signal, the terminal can detect the synchronization signal.
  • the network device may determine that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and corresponding to the synchronization signal according to the synchronization signal.
  • the subcarrier interval sends the synchronization signal to send the synchronization signal
  • the terminal determines that the largest subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and then corresponds to the synchronization signal according to the synchronization signal.
  • the subcarrier interval detects the synchronization signal.
  • the different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method between the terminal and the network device can be flexibly applied to different application scenarios.
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal.
  • the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal may include, for example, a normal cyclic prefix and an extended cyclic prefix
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal may be a corresponding subcarrier spacing corresponding to the synchronization signal.
  • the cyclic prefix corresponding to the synchronization signal of the serving cell and/or the cyclic prefix corresponding to the broadcast channel of the serving cell may be the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal, such as an extended cyclic prefix. .
  • the cyclic prefix corresponding to the synchronization signal of the serving cell and/or the cyclic prefix corresponding to the broadcast channel of the serving cell may be greater than the cyclic prefix corresponding to the data channel on the serving cell.
  • the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal is searched in a correspondence table between the preset subcarrier spacing and the system parameter according to the subcarrier spacing corresponding to the synchronization signal, and the synchronization signal is used.
  • Corresponding subcarrier The longest cyclic prefix in the cyclic prefix corresponding to the interval is determined as the cyclic prefix corresponding to the symbol carrying the synchronization signal.
  • the correspondence table between the subcarrier spacing and the system parameters can be seen in Table 1, for example.
  • the system parameters corresponding to each subcarrier spacing may include a subframe length, a number of symbols, a CP length, a CP overhead, and the like.
  • the length of the CP corresponding to each sub-carrier interval includes a CP length corresponding to a normal cyclic prefix, and two CP lengths of a CP length corresponding to the extended cyclic prefix.
  • the minimum CP length is the CP length corresponding to the normal cyclic prefix
  • the maximum CP length is the CP length corresponding to the extended cyclic prefix.
  • the cyclic prefix corresponding to the 30 kHz subcarrier interval includes: a normal cyclic prefix of 2.38 us and an extended cyclic prefix of 8.33 us, and the cycle corresponding to the symbol carrying the synchronization signal can be determined.
  • the prefix can be an extended loop prefix of 8.33us.
  • the cyclic prefix corresponding to the data channel on the serving cell is about 2.38 ⁇ s or about 4.76 ⁇ s
  • the cyclic prefix corresponding to the synchronization signal of the serving cell may be about 5.13 ⁇ s corresponding to the cyclic prefix of the broadcast channel of the serving cell.
  • the cyclic prefix corresponding to the synchronization signal of the serving cell mentioned herein may be a cyclic prefix corresponding to the symbol carrying the synchronization signal;
  • the cyclic prefix corresponding to the broadcast channel of the serving cell may be a cyclic prefix corresponding to the symbol carrying the broadcast channel;
  • the cyclic prefix corresponding to the data channel on the cell may be a cyclic prefix corresponding to the symbol carrying the data.
  • the broadcast channel referred to herein may be a channel for transmitting a Master Information Block (MIB).
  • MIB Master Information Block
  • the synchronization signal of the serving cell and the coverage of the broadcast channel of the serving cell can be expanded, and the synchronization signal of the serving cell and the robustness of the broadcast channel of the serving cell can be improved.
  • the terminal determines, according to the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal, that the maximum subcarrier spacing in the subcarrier spacing set is the subcarrier spacing corresponding to the synchronization signal, the information
  • the transmission method may further include:
  • the terminal determines, according to the carrier frequency of the serving cell, a subcarrier spacing set corresponding to the serving cell, or
  • the terminal determines a subcarrier spacing set corresponding to the serving cell according to the frequency set of the serving cell.
  • the terminal may be configured to search, according to the frequency set corresponding to the serving cell, a subcarrier spacing set corresponding to the frequency set corresponding to the serving cell, in a correspondence between the preset frequency set and the subcarrier spacing set, the subcarrier spacing set. That is, the subcarrier spacing set corresponding to the serving cell; the subcarrier spacing set may be calculated according to the frequency set corresponding to the serving cell, and the calculated subcarrier spacing set is used as the subcarrier spacing set corresponding to the serving cell.
  • the terminal can be, for example, a service
  • the frequency set in which the carrier frequency of the serving cell is located is determined as the frequency set corresponding to the serving cell; and the frequency set corresponding to the serving cell is determined according to the preset correspondence between the serving cell and the frequency set, for example, according to the preset serving cell.
  • the terminal may search, according to a carrier frequency of the serving cell, a subcarrier spacing set corresponding to a carrier frequency of the serving cell in a correspondence between a preset carrier frequency and a subcarrier spacing set, where the subcarrier spacing set is The subcarrier spacing set corresponding to the serving cell; the subcarrier spacing set may be calculated according to the carrier frequency of the serving cell, and the calculated subcarrier spacing set is used as the subcarrier spacing set corresponding to the serving cell.
  • the terminal may obtain the carrier frequency of the serving cell by means of frequency sweeping, and may also acquire the carrier frequency of the serving cell according to the carrier frequency of the preset serving cell.
  • the second embodiment of the present application may further provide an information transmission method.
  • FIG. 2 is a flowchart of an information transmission method according to Embodiment 2 of the present application. As shown in FIG. 2, the method may further include:
  • the terminal determines a time-frequency resource that carries system information according to the sequence corresponding to the synchronization signal.
  • the terminal may be, for example, a sequence corresponding to the synchronization signal obtained by the detection, and/or a correspondence between a preset synchronization signal sequence and a system information time-frequency resource, and determining a time-frequency resource of the bearer system information. After determining the time-frequency resource of the bearer system information, the terminal may receive the system information sent by the network device on the time-frequency resource of the bearer system information.
  • the system information may be a primary information block (MIB), and the channel carrying the system information may be a physical broadcast channel.
  • MIB primary information block
  • the system information may include a symbol location indication field, the symbol location indication field is used to indicate a time domain location carrying the synchronization signal.
  • the symbol position indication field can be used to indicate the location of the start symbol of the synchronization signal.
  • the symbol position indication field is used to indicate an index of a starting symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of a start symbol carrying the synchronization signal and a first symbol of a subframe carrying the synchronization signal.
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of a start symbol carrying a primary synchronization signal and a first symbol of a subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries the system information.
  • the method may further include:
  • the terminal receives the system information according to the time-frequency resource of the bearer system information.
  • the terminal may determine the time domain location that carries the synchronization signal according to the scrambling code corresponding to the symbol position indication domain and/or the system information included in the system information.
  • the time domain location carrying the synchronization signal may be, for example, a location of a start symbol carrying the synchronization signal, an index of a start symbol carrying the synchronization signal, a start symbol carrying the synchronization signal, and a synchronization signal carrying the synchronization signal.
  • the time domain offset of the first symbol of the subframe, the location of the start symbol carrying the primary synchronization signal, the index of the start symbol carrying the primary synchronization signal, the start symbol carrying the primary synchronization signal, and the bearer carrying the primary synchronization signal The time domain offset of the first symbol of the subframe, and at least one of the subframes carrying the system information.
  • the terminal determines that the synchronization signal is in a time domain position of a radio frame, and can implement frame timing for supporting the multi-beam transmission, and the terminal determines the radio frame timing of the serving cell.
  • the determining, by the terminal, the time-frequency resource of the bearer system information according to the sequence corresponding to the synchronization signal in the method, as described above, may include:
  • the terminal determines that the time-frequency resource of the bearer system information is the first time frequency resource. source;
  • the terminal determines that the time-frequency resource of the bearer system information is the second time-frequency resource.
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain of the time-frequency resource carrying the synchronization signal. position.
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain of the time-frequency resource carrying the synchronization signal A fixed frequency offset of the position.
  • the number of resource blocks occupied by the first time-frequency resource location is the same as the number of resource blocks occupied by the time-frequency resource that carries the synchronization signal; and/or the resource blocks occupied by the second time-frequency resource location The number is the same as the number of resource blocks occupied by the time-frequency resource carrying the synchronization signal.
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the synchronization signal.
  • the number of time domain symbols occupied by the first time-frequency resource is the same as the number of symbols occupied by time-frequency resources that carry the synchronization signal.
  • the number of time domain symbols occupied by the first time-frequency resource is twice the number of symbols occupied by the time-frequency resource carrying the synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource that carries the synchronization signal, and specifically includes:
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed on both sides of the frequency domain location of the time-frequency resource carrying the synchronization signal.
  • the second time-frequency resource may include a third time-frequency resource and a fourth time-frequency resource, and the frequency domain location of the third time-frequency resource and the frequency domain location of the fourth time-frequency resource are both carrying the synchronization signal.
  • the frequency domain locations of the time-frequency resources are adjacent and are distributed on both sides of the frequency domain location corresponding to the time-frequency resource carrying the synchronization signal.
  • the number of resource blocks occupied by the third time-frequency resource and the number of resource blocks occupied by the fourth time-frequency resource may be the same.
  • the frequency domain location of the third time-frequency resource may be greater than the maximum frequency domain location of the time-frequency resource carrying the synchronization signal, where the frequency domain location of the fourth time-frequency resource may be smaller than the time-frequency resource carrying the synchronization signal. Minimum frequency domain location. Or the frequency domain location of the fourth time-frequency resource may be greater than the maximum frequency domain location of the time-frequency resource that carries the synchronization signal, where the frequency domain location of the third time-frequency resource may be smaller than the time-frequency resource that carries the synchronization signal. Minimum frequency domain location.
  • the sum of the number of resource blocks occupied by the third time-frequency resource and the number of resource blocks occupied by the fourth time-frequency resource may be the same as the number of resource blocks occupied by the time-frequency resource carrying the synchronization signal.
  • the terminal determines the time-frequency resource of the bearer system information according to the sequence corresponding to the synchronization signal, and may include:
  • the terminal determines that the time-frequency resource of the bearer system information is the first time-frequency resource
  • the terminal determines that the time-frequency resource of the bearer system information is the second time-frequency resource.
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • FIG. 3 is a correspondence diagram of a first time-frequency resource and a time-frequency resource carrying the synchronization signal.
  • 4 is a diagram showing a correspondence relationship between a second time-frequency resource and a time-frequency resource carrying the synchronization signal.
  • the time-frequency resource of the bearer system information is the first time-frequency resource
  • the first time-frequency resource may be the physical broadcast channel in FIG.
  • the time-frequency resource carrying the synchronization signal is the secondary synchronization signal in FIG. 3 (Secondary Synchronization) Signal, SSS) corresponding time-frequency resources, such as time-frequency resources corresponding to SSS B0, or time-frequency resources corresponding to SSS B1.
  • PBCH Physical Broadcast Channel
  • SSS Secondary Synchronization
  • B0 and B1 may respectively correspond to transmission beams of different terminals, and for one terminal, the system information and the synchronization signal may adopt the same beam, such as B0 beam or B1 beam.
  • System information can be carried on the PBCH for transmission.
  • the time-frequency resources corresponding to the PBCH B0 and the time-frequency resources corresponding to the SSS B0 are respectively located on different symbols of the same subframe, that is, the time-frequency resources corresponding to the PBCH B0 can be time-frequency resources corresponding to the SSS B0.
  • Time-division multiplexing the time-frequency resources corresponding to the PBCH B1 and the time-frequency resources corresponding to the SSS B1 are respectively located on different symbols of the same subframe, that is, the time-frequency resources corresponding to the PBCH B1 can be time-frequency resources corresponding to the SSS B1. Time division multiplexing.
  • the time-frequency resource of the bearer system information is the second time-frequency resource
  • the second time-frequency resource may be the time corresponding to the PBCH in FIG.
  • the frequency resource such as the time-frequency resource corresponding to the PBCH B0, or the time-frequency resource corresponding to the PBCH B1
  • the time-frequency resource carrying the synchronization signal is the time-frequency resource corresponding to the SSS in FIG. 4, such as the time-frequency resource corresponding to the SSS B0.
  • B0 and B1 may respectively correspond to transmission beams of different terminals, and for one terminal, the system information and the synchronization signal may adopt the same beam, such as B0 beam or B1 beam.
  • System information can be carried on the PBCH for transmission.
  • the time-frequency resources corresponding to the PBCH B0 and the time-frequency resources corresponding to the SSS B0 are respectively located in different frequency domain positions of the same symbol in the same subframe, that is, the time-frequency resources corresponding to the PBCH B0 can be compared with the SSS.
  • the time-frequency resource corresponding to the B0 is frequency-division multiplexed; the time-frequency resource corresponding to the PBCH B1 and the time-frequency resource corresponding to the SSS B1 are respectively located in different frequency domain positions of the same symbol in the same subframe, that is, the PBCH B1 corresponds to The time-frequency resource can be frequency-multiplexed with the time-frequency resource corresponding to SSS B1.
  • the time-frequency resource carrying the system information is the first time-frequency resource, and the first time-frequency resource. And time-division multiplexing with the time-frequency resource carrying the synchronization signal, so that the first time-frequency resource and the time-frequency resource carrying the synchronization signal occupy more time-domain symbols, such as occupying multiple subframes; if the system uses multiple beam transmissions In the mode, if the sequence corresponding to the synchronization signal is the second sequence, the time-frequency resource carrying the system information is the second time-frequency resource, and the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal, The second time-frequency resource and the time-frequency resource carrying the synchronization signal occupy less time-domain symbols, such as occupying a smaller number of subframes.
  • the transmission direction of a subframe or a transmission unit can be dynamically changed, and can be dynamically applied to uplink data transmission or downlink data transmission, thereby better matching the current service. demand. For example, if the current service has more downlink and downlink services than the uplink service, most of the subframes can be dynamically changed into downlink data transmission, so that downlink services can be transmitted faster and better, providing system spectrum efficiency and reducing downlink packet delay. .
  • the information transmission method of the embodiment of the present application may determine that the time-frequency resource of the bearer system information is the first time-frequency resource or the second time-frequency resource according to the sequence corresponding to the synchronization signal, and the first time-frequency resource transmission system information is not fixed.
  • the second time-frequency resource can be used to transmit system information, so that the time-frequency resources occupied by the synchronization signals and system information corresponding to the multiple beams occupy a large number of time-domain symbols, so that the number of fixed downlink symbols in one radio frame is minimized and maximized. Guaranteed that enough time domain symbols or sub-frames can be flexibly changed between uplink and downlink to better support dynamic TDD.
  • Forward compatibility requires that a certain subframe in a radio frame or a certain frequency domain block on a serving cell can be flexibly occupied by future services without affecting terminals in the existing system, because the sequence corresponding to the synchronization signal can be used in the method.
  • the time-frequency resource for determining the information of the bearer system is the first time-frequency resource or the second time-frequency resource, and the first time-frequency resource transmission system information is not fixed, but the system information is transmitted by using the second time-frequency resource to make a wireless
  • the time-frequency symbols or the number of sub-frames occupied by the time-frequency resources occupied by the synchronization signal and the system information in the frame are minimized, and the forward compatibility is maximized, thereby making the NR system more flexible and better supporting forward compatibility.
  • the time-frequency resources that are not fixed by using the synchronization signal and the bearer system information corresponding to each beam are time-division multiplexed, so that the second time-frequency resource transmission is used when the multi-beam transmission is performed.
  • the system information is such that the time-frequency resources occupied by the synchronization signals corresponding to the multiple beams are adjacent in the time domain, and the synchronization signals of all the beams are scanned faster, thereby shortening the access cell time of the terminal.
  • the time-frequency resources that do not use the synchronization signal corresponding to each beam and the time-frequency resources of the bearer system information are used in a frequency division multiplexing manner to avoid occupying excessive frequency domain resources.
  • the NR system needs to support the access of terminals with different bandwidth capabilities. Some terminals with smaller bandwidth capabilities can use the synchronization signal corresponding to each beam and the time-frequency resources of the bearer system information in a time-division multiplex manner, not fixedly.
  • the second time-frequency resource is used to transmit system information
  • the first time-frequency resource is used to transmit system information, so that the bandwidth of the synchronization signal and the system information is minimized, thereby effectively supporting terminals with different bandwidth capabilities to access the cell.
  • the time-frequency resource of the bearer system information is determined to be the first time-frequency resource or the second time-frequency resource according to the sequence corresponding to the synchronization signal, so that the system can flexibly adopt the first according to the actual application scenario and actual requirements.
  • the one-time frequency resource and/or the second time-frequency resource carry system information, thereby better supporting dynamic TDD, better supporting forward compatibility, and better supporting multi-beam transmission.
  • the first sequence as described above may be generated by two 31-length sequences in a first combination; the second sequence is generated by the two 31-length sequences in a second combination.
  • the first combination mode is different from the second combination mode.
  • each 31-length sequence can be a 31-bit long binary sequence.
  • the first sequence and the second sequence may be sequences generated by using different combinations of the same two sequences.
  • the first combination mode and the second combination mode are different.
  • FIG. 5 is a flowchart of another information transmission method according to Embodiment 2 of the present application.
  • the method may include:
  • the network device determines, according to the subcarrier spacing corresponding to the synchronization signal, a cyclic prefix set corresponding to the subcarrier spacing.
  • the network device determines, according to the cyclic prefix set, that the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix set.
  • the cyclic prefix set corresponding to the subcarrier interval may include at least one cyclic prefix, and the network device may determine that the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix set.
  • the cyclic prefix set may include, for example, a normal cyclic prefix and an extended cyclic prefix, and the longest cyclic prefix in the cyclic prefix set may be, for example, an extended cyclic prefix.
  • the network device sends the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal, and the sending the synchronization signal may include:
  • the network device sends the synchronization signal according to a sub-carrier interval corresponding to the synchronization signal and a cyclic prefix corresponding to a symbol carrying the synchronization signal.
  • the network device may generate a symbol corresponding to the synchronization signal according to a sub-carrier interval corresponding to the synchronization signal and a cyclic prefix corresponding to the symbol that carries the synchronization signal, and then send the synchronization signal according to the symbol corresponding to the synchronization signal.
  • the subcarrier spacing corresponding to the symbol carrying the system information is the same as the subcarrier spacing carrying the synchronization signal.
  • FIG. 6 is a flowchart of still another method for transmitting information according to Embodiment 2 of the present application. As shown in FIG. 6, the method may further include:
  • the network device determines a time-frequency resource that carries system information.
  • the network device may determine, according to the current application scenario, that the time-frequency resource of the bearer system information is the first time-frequency resource or the second time-frequency resource.
  • the first time-frequency resource and the second time-frequency resource are time-frequency resources of different time-frequency positions, respectively.
  • the network device may determine that the second time-frequency resource is a time-frequency resource that carries system information.
  • the network device may determine the second time.
  • the frequency resource is a time-frequency resource that carries system information.
  • the network device can determine that the first time-frequency resource is a time-frequency resource that carries system information.
  • the network device determines a sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information.
  • the time-frequency resources of the bearer system information are different, and the sequence corresponding to the synchronization signal determined by the network device according to the S101 may be different.
  • the network device may be, for example, a time-frequency resource according to the information of the bearer system, and a corresponding relationship between a time-frequency resource of the preset system information and a synchronization signal sequence, and determining a synchronization signal sequence corresponding to the time-frequency resource of the bearer system information is The sequence corresponding to the synchronization signal, that is, the sequence corresponding to the synchronization signal to be transmitted.
  • the method may further include:
  • the network device generates the synchronization signal to be sent according to the sequence corresponding to the synchronization signal.
  • different sequences corresponding to the synchronization signal may carry different information, such as cell identity (ID) information of the serving cell of the different sequence bearer terminals.
  • ID cell identity
  • the method may further include:
  • the network device sends system information according to the time-frequency resource of the bearer system information.
  • the system information may be a primary information block (MIB), and the channel carrying the system information may be a physical broadcast channel.
  • MIB primary information block
  • the system information may include a symbol location indication field, the symbol location indication field is used to indicate a time domain location carrying the synchronization signal.
  • the symbol position indication field can be used to indicate the location of the start symbol of the synchronization signal.
  • the symbol position indication field is used to indicate an index of a starting symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of a start symbol carrying the synchronization signal and a first symbol of a subframe carrying the synchronization signal.
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of a start symbol carrying a primary synchronization signal and a first symbol of a subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries the system information.
  • determining, by the network device in S602, the sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information may include:
  • the network device determines that the sequence corresponding to the synchronization signal is the first a sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence.
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain of the time-frequency resource carrying the synchronization signal. position.
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and a frequency domain location of the time-frequency resource carrying the synchronization signal A fixed frequency offset.
  • the number of resource blocks occupied by the first time-frequency resource is the same as the number of resource blocks occupied by the time-frequency resource that carries the synchronization signal, and/or the number of resource blocks occupied by the second time-frequency resource is The time-frequency resource carrying the synchronization signal occupies the same number of resource blocks;
  • the start symbol of the first time-frequency resource is adjacent to the last symbol that carries the synchronization signal; or the start symbol corresponding to the first time-frequency resource is the next symbol that carries the synchronization signal.
  • a symbol; or the last symbol carrying the synchronization signal is the symbol l
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the synchronization signal.
  • the number of time domain symbols occupied by the first time-frequency resource is the same as the number of symbols occupied by time-frequency resources carrying the synchronization signal. Or the number of time domain symbols occupied by the first time-frequency resource is twice the number of symbols occupied by the time-frequency resource carrying the synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location corresponding to the time-frequency resource carrying the synchronization signal, and is distributed on both sides of the frequency domain location corresponding to the time-frequency resource carrying the synchronization signal.
  • the second time-frequency resource may include a third time-frequency resource and a fourth time-frequency resource, and the frequency domain location of the third time-frequency resource and the frequency domain location of the fourth time-frequency resource are both carrying the synchronization signal.
  • the frequency domain locations of the time-frequency resources are adjacent and are distributed on both sides of the frequency domain location corresponding to the time-frequency resource carrying the synchronization signal.
  • the number of resource blocks occupied by the third time-frequency resource and the number of resource blocks occupied by the fourth time-frequency resource may be the same.
  • the frequency domain location of the third time-frequency resource may be greater than the maximum frequency domain location of the time-frequency resource carrying the synchronization signal, where the frequency domain location of the fourth time-frequency resource may be smaller than the time-frequency resource carrying the synchronization signal. Minimum frequency domain location. Or the frequency domain location of the fourth time-frequency resource may be greater than the maximum frequency domain location of the time-frequency resource that carries the synchronization signal, where the frequency domain location of the third time-frequency resource may be smaller than the time-frequency resource that carries the synchronization signal. Minimum frequency domain location.
  • the sum of the number of resource blocks occupied by the third time-frequency resource and the number of resource blocks occupied by the fourth time-frequency resource may be equal to the number of resource blocks occupied by the time-frequency resource carrying the synchronization signal. the same.
  • the determining, by the network device in S602, the sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information may include:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence.
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the terminal determines that the synchronization signal is in a time domain position of a radio frame, and can implement frame timing for supporting the multi-beam transmission, and the terminal determines the radio frame timing of the serving cell.
  • the information transmission method provided in the second embodiment of the present application determines that the time-frequency resource of the bearer system information is the first time-frequency resource or the second time-frequency resource according to the sequence corresponding to the synchronization signal, so that the system can be based on the actual application scenario and actual needs.
  • the system information includes a symbol position indication field and/or a scrambling code corresponding to the system information indicates a subframe carrying the system information, and can support the terminal to perform frame timing under multi-beam transmission, that is, determine that the bearer synchronization signal is in one radio frame.
  • the time domain location determines the radio frame timing of the serving cell.
  • Embodiment 3 of the present application further provides an information transmission method.
  • FIG. 7 is a flowchart of an information transmission method according to Embodiment 3 of the present application. As shown in FIG. 7, the method may include:
  • the terminal determines a sequence corresponding to the synchronization signal.
  • the terminal may determine the sequence corresponding to the synchronization signal by using the manner of S104 in the foregoing embodiment or the like.
  • step S701 may further include:
  • the terminal determines a sequence corresponding to the synchronization signal according to the synchronization signal sent by the received network device.
  • the terminal receiving the synchronization signal sent by the network device may include:
  • the terminal receives the information sent by the network device
  • the terminal detects the synchronization signal according to the information sent by the received network device.
  • the information sent by the network device may or may not include the synchronization signal, but the terminal performs the foregoing operations. Only when the information sent by the network device does not include the synchronization signal, the terminal cannot detect the synchronization signal. When the information transmitted by the network device includes a synchronization signal, the terminal can detect the synchronization signal.
  • the terminal determines a time-frequency resource that carries system information according to the sequence corresponding to the synchronization signal.
  • the determining, by the terminal, the time-frequency resource of the bearer system information, according to the sequence corresponding to the synchronization signal may include:
  • the time-frequency resource of the bearer system information is the first time-frequency resource
  • the sequence corresponding to the synchronization signal is the second sequence
  • the time-frequency resource of the bearer system information is the second time-frequency resource
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain corresponding to the time-frequency resource carrying the synchronization signal. position;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is corresponding to the time-frequency resource carrying the synchronization signal.
  • the frequency offset of the domain location interval is fixed.
  • a start symbol of the first time-frequency resource is adjacent to a last symbol that carries the synchronization signal; or a start symbol of the first time-frequency resource is a bearer of the synchronization signal.
  • the next symbol of the last symbol; or if the last symbol carrying the synchronization signal is the symbol l, the starting symbol of the first time-frequency resource is the symbol (l+1) or the symbol (l+1) modL, Where l 0,1,...L-1, L is a positive integer;
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the synchronization signal.
  • the first sequence is generated by two 31-length sequences according to a first combination manner; the second sequence is generated by the two 31-length sequences according to a second combination manner; the first combination manner and the second combination manner different.
  • the terminal may determine the sequence corresponding to the synchronization signal, and then determine the time-frequency resource of the bearer system information according to the sequence corresponding to the synchronization signal, and the different time-frequency resources of the bearer system information may correspond to different application scenarios, which may be The different sequences corresponding to the synchronization signals correspond to different application scenarios, so that the information transmission method including the terminal and the network device can be flexibly applied to different application scenarios.
  • Embodiment 3 of the present application further provides an information transmission method.
  • FIG. 8 is a flowchart of another information transmission method according to Embodiment 3 of the present application. As shown in FIG. 8, the method can include:
  • the network device determines a time-frequency resource that carries system information.
  • the network device determines a sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information.
  • the network device in S802 determines a sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information, including:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to a frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and a frequency domain location of the time-frequency resource carrying the synchronization signal A fixed frequency offset.
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the synchronization signal.
  • the network device in S802 determines the sequence corresponding to the synchronization signal according to the time-frequency resource of the bearer system information, including:
  • the network device determines that the sequence corresponding to the synchronization signal is the first sequence
  • the network device determines that the sequence corresponding to the synchronization signal is the second sequence
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31-length sequences according to the first combination manner
  • the second sequence is generated by the two 31-long sequences according to the second combination manner, where the first combination manner is different from the second combination manner.
  • the network device can determine the time-frequency resource that carries the system information, and according to the time-frequency of the bearer system information.
  • the resource determines the sequence corresponding to the synchronization signal, and the different time-frequency resources of the bearer system information may correspond to different application scenarios, so that different sequences corresponding to the synchronization signal correspond to different application scenarios, thereby enabling information transmission between the terminal and the network device.
  • the method is flexible and applied to different application scenarios.
  • Embodiment 4 of the present application further provides a terminal.
  • FIG. 9 is a schematic structural diagram of a terminal according to Embodiment 4 of the present application.
  • the terminal 900 may include a receiving unit 901 and a processing unit 902.
  • the receiving unit 901 can be executed by a receiver of the terminal 900.
  • Processing unit 902 can be executed, for example, by a processor of terminal 900 in a software and/or software manner.
  • the processor of the terminal 900 may be a central processing unit (CPU).
  • the processor can also be other general purpose processors, digital signal processing (DSP), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more.
  • DSP digital signal processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • Programmable logic devices discrete gates or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the receiver can be a receiving interface circuit for receiving signals; in addition, the receiver can communicate with other network networks and/or terminals by wireless communication.
  • the processing unit 902 is configured to perform S103 in the information transmission and transmission method of the foregoing embodiment to determine a subcarrier spacing corresponding to the synchronization signal, where the subcarrier spacing corresponding to the synchronization signal is the largest of the subcarrier spacing sets corresponding to the serving cell carrying the synchronization signal.
  • the subcarrier spacing is performed, and S104 is performed to detect the synchronization signal according to the subcarrier spacing corresponding to the synchronization signal and the information sent by the received network device.
  • the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal.
  • the processing unit 902 is further configured to perform, by using S201 in the information transmission method, the time-frequency resource that determines the bearer system information according to the sequence corresponding to the synchronization signal.
  • the processing unit 902 is configured to: if the sequence corresponding to the synchronization signal is the first sequence, determine that the time-frequency resource of the bearer system information is the first time-frequency resource; if the sequence corresponding to the synchronization signal is the second sequence, Determining the time-frequency resource carrying the system information as the second time-frequency resource;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location corresponding to the first time-frequency resource includes a frequency domain location corresponding to the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location corresponding to the second time-frequency resource is fixed to the frequency domain location interval corresponding to the time-frequency resource carrying the synchronization signal Frequency offset.
  • the start symbol of the first time-frequency resource as described above is adjacent to the last symbol carrying the synchronization signal;
  • the starting symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed on both sides of the frequency domain location of the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by the two 31 long sequences according to the first combination; the second sequence is generated by the two 31 long sequences according to the second combination; the first combination mode and the second combination The combination is different.
  • the system information includes a symbol position indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries system information.
  • the synchronization signal is a secondary synchronization signal.
  • the terminal provided in Embodiment 4 of the present application may determine that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and then according to the subcarrier spacing corresponding to the synchronization signal. Detect sync signal.
  • the different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method between the terminal and the network device can be flexibly applied to different application scenarios.
  • Embodiment 5 of the present application further provides a terminal.
  • FIG. 10 is a schematic structural diagram of a terminal according to Embodiment 5 of the present application.
  • the terminal 1000 can include a processor 1001 and a receiver 1002.
  • the processor 1001 can implement the function of the processing unit 902 in the fourth embodiment
  • the receiver 1002 can implement the function of the receiving unit 901 in the fourth embodiment.
  • the terminal 1000 may further include a memory 1003, where the memory 1003 may be used to store code and the like when the processor 1001 is executed.
  • the processor of the terminal 1000 can be a CPU.
  • the processor 1001 can also be other general purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the terminal of the fifth embodiment of the present application can perform the information transmission method performed by the terminal in any of the foregoing FIG. 1 , FIG. 2 and FIG. 7 , and the beneficial effects thereof are similar to the foregoing embodiment, and details are not described herein again.
  • Embodiment 6 of the present application further provides a network device.
  • FIG. 11 is a schematic structural diagram of a network device according to Embodiment 6 of the present application. As shown in FIG. 11, the network device 1100 may include a processing unit 1101 and a transmitting unit 1102.
  • the processing unit 1101 can be executed, for example, by software of a network device 1100 by means of software and/or software, and the transmitting unit 1102 can be executed by a transmitter of the network device 1100.
  • the processor can be a CPU.
  • the processor can also be other general purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the transmitter may be a transmitting interface circuit for transmitting signals; in addition, the transmitter may communicate with other network networks and/or terminals through wireless communication.
  • the processing unit 1101 is configured to perform the S101 determining the subcarrier spacing corresponding to the synchronization signal in the information transmission method in the foregoing embodiment, where the subcarrier spacing corresponding to the synchronization signal is the largest of the subcarrier spacing sets corresponding to the serving cell carrying the synchronization signal. Subcarrier spacing.
  • the transmitting unit 1102 is configured to perform the information transmission method in the foregoing embodiment, where S102 sends a synchronization signal according to a subcarrier interval corresponding to the synchronization signal.
  • the processing unit 1101 is further configured to: perform S501 in the information transmission method according to the foregoing embodiment, to determine a cyclic prefix set corresponding to the subcarrier spacing according to the subcarrier spacing corresponding to the synchronization signal; and perform the foregoing embodiment.
  • S502 determines, according to the cyclic prefix set, that the cyclic prefix corresponding to the symbol carrying the synchronization signal is the longest cyclic prefix in the cyclic prefix set.
  • the sending unit 1102 is configured to perform the information transmission method in the foregoing embodiment, where S503 sends a synchronization signal according to a cyclic prefix corresponding to the subcarrier spacing corresponding to the synchronization signal and the symbol of the bearer synchronization signal.
  • the processing unit 1101 is further configured to: perform S601 in the information transmission method in the foregoing embodiment to determine time-frequency resources of the bearer system information; and perform S602 in the information transmission method in the foregoing embodiment, according to the bearer system information.
  • the time-frequency resource determines the sequence corresponding to the synchronization signal.
  • the processing unit 1101 is specifically configured to: if the time-frequency resource carrying the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence; and if the time-frequency resource carrying the system information is the second time Frequency resource, determining that the sequence corresponding to the synchronization signal is the second sequence;
  • the frequency domain location of the first time-frequency resource is the same as the frequency domain location of the time-frequency resource carrying the synchronization signal, or the frequency domain location of the first time-frequency resource includes a frequency domain location of the time-frequency resource carrying the synchronization signal;
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal; or the frequency domain location of the second time-frequency resource and the frequency domain location spacing of the time-frequency resource carrying the synchronization signal are fixed. Offset.
  • the start symbol of the first time-frequency resource is adjacent to the last symbol carrying the synchronization signal
  • the start symbol of the first time-frequency resource is the next symbol carrying the last symbol of the synchronization signal
  • the symbol of the second time-frequency resource is the same as the symbol carrying the synchronization signal; or the start symbol of the second time-frequency resource is the same as the start symbol of the primary synchronization signal included in the bearer synchronization signal.
  • the frequency domain location of the second time-frequency resource is adjacent to the frequency domain location of the time-frequency resource carrying the synchronization signal, and is distributed on both sides of the frequency domain location of the time-frequency resource carrying the synchronization signal.
  • the processing unit 1101 is configured to: if the time-frequency resource that carries the system information is the first time-frequency resource, determine that the sequence corresponding to the synchronization signal is the first sequence; and if the time-frequency resource that carries the system information is the second time Frequency resource, determining that the sequence corresponding to the synchronization signal is the second sequence;
  • the first time-frequency resource is time-division multiplexed with the time-frequency resource carrying the synchronization signal
  • the second time-frequency resource is frequency-division multiplexed with the time-frequency resource carrying the synchronization signal.
  • the first sequence is generated by two 31-length sequences in a first combination manner
  • the second sequence is generated by two 31-length sequences in a second combination manner
  • the first combination manner is different from the second combination manner
  • the system information includes a symbol location indication field
  • the symbol position indication field is used to indicate the position of the start symbol carrying the synchronization signal
  • the symbol position indication field is used to indicate an index of the start symbol carrying the synchronization signal.
  • the symbol position indication field is used to indicate a time domain offset of the first symbol carrying the synchronization signal and the first symbol of the subframe carrying the synchronization signal;
  • the location indication field is used to indicate the location of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate an index of the start symbol carrying the primary synchronization signal.
  • the symbol position indication field is used to indicate the start symbol of the primary synchronization signal and the first symbol of the subframe carrying the primary synchronization signal Time domain offset.
  • the scrambling code corresponding to the system information is used to indicate a subframe that carries the system information.
  • the synchronization signal is a secondary synchronization signal.
  • the network device provided in the sixth embodiment of the present application may determine that the maximum subcarrier spacing in the subcarrier spacing set corresponding to the serving cell that carries the synchronization signal is the subcarrier spacing corresponding to the synchronization signal, and according to the subcarrier spacing corresponding to the synchronization signal.
  • the synchronization signal is sent to transmit the synchronization signal.
  • the different sub-carrier spacings in the sub-carrier spacing set corresponding to the serving cell may be corresponding to different application scenarios, so that the information transmission method between the terminal and the network device can be flexibly applied to different application scenarios.
  • Embodiment 7 of the present application further provides a network device.
  • FIG. 12 is a schematic structural diagram of a network device according to Embodiment 7 of the present application.
  • the network device 1200 can include a processor 1201 and a transmitter 1202.
  • the processor 1201 can implement the function of the processing unit 1101 in the sixth embodiment
  • the transmitter 1202 can implement the function of the sending unit 1102 in the sixth embodiment.
  • the network device 1200 may further include a memory 1203, where the memory 1203 may be used to store code and the like when the processor 1201 is executed.
  • the processor 1201 of the network device 1200 may be a CPU.
  • the processor 1201 can also be other general purpose processors, DSPs, ASICs, FPGAs, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the terminal of the seventh embodiment of the present application can perform the information transmission method performed by the network device in any of the foregoing FIG. 1 , FIG. 5 , FIG. 6 , and FIG. 8 , and the beneficial effects thereof are similar to the foregoing embodiment, and details are not described herein again. .
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

本申请实施例提供一种信息传输方法、终端及网络设备。本申请的信息传输方法可包括：终端确定同步信号对应的子载波间隔，同步信号对应的子载波间隔为承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔；终端根据同步信号对应的子载波间隔检测同步信号。本申请实施例可灵活应用于不同的应用场景。

Description

信息传输方法、终端及网络设备
本申请要求于2016年08月11日提交中国专利局、申请号为201610658865.6、申请名称为“信息传输方法、终端及网络设备”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，尤其涉及一种信息传输方法、终端及网络设备。
背景技术
第5代(5th Generation，5G)通信***或新无线(New Radio，NR)通信***致力于支持更高***性能，支持不同的业务，不同的部署场景和不同的频谱。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、机器类型通信(Machine Type Communication，MTC)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(Indoor hotspot)场景、密集城区(dense urban)场景、郊区场景、城区宏覆盖(Urban Macro)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。
目前的通信***中，不同终端具有相同的处理带宽，具有相同的处理能力。这使得，目前通信***难以支持不同的业务、不同的部署场景、不同的频谱资源对应的场景。
如何使得通信***，支持不同的业务、不同的部署场景、不同的频谱资源场景等不同应用场景需要进一步研究。
发明内容
本申请实施例提供一种信息传输方法、终端及网络设备，以灵活支持多种不同的应用场景。
第一方面，本申请实施例提供一种信息传输方法，可包括：
终端确定承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔；
终端根据同步信号对应的子载波间隔检测同步信号。
该方法中，服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
无论该服务小区的其他信道或信号采用该服务小区对应的子载波间隔集合中的哪一个子载波间隔，终端都采用相同的子载波间隔检测同步信号，可使得终端无需对同步信号进行盲检以识别同步信号采用的子载波间隔，缩短了终端检测同步信号的时间，缩短了终端与服务小区同步的时间，即缩短了终端接入服务小区的时间。
当确定该服务小区对应的子载波间隔集合中最大的子载波间隔检测同步信号时，可以使得该同步信号能够对抗高速场景带来的多普勒偏移，提供同步信号的检测成功率。
在第一方面的一种可实现方式中，承载该同步信号的符号对应的循环前缀，为同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
通过这种方式，可以扩大服务小区的同步信号和服务小区的广播信道的覆盖范围，提高服务小区的同步信号和服务小区的广播信道的鲁棒性。
在第一方面的另一种可实现方式中，该方法还可包括：
终端根据同步信号对应的序列确定承载***信息的时频资源。
在第一方面的又一种可实现方式中，终端根据同步信号对应的序列确定承载***信息的时频资源，包括：
若同步信号对应的序列为第一序列，则终端确定承载***信息的时频资源为第一时频资源；
若同步信号对应的序列为第二序列，则终端确定承载***信息的时频资源为第二时频资源；
第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源对应的频域位置包括承载同步信号的时频资源对应的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源对应的频域位置与承载同步信号的时频资源对应的频域位置间隔固定的频率偏移。
该方法中，可根据同步信号对应的序列确定承载***信息的时频资源为第一时频资源或第二时频资源，从而使得***可以根据实际应用场景和实际需求，灵活采用第一时频资源和/或第二时频资源承载***信息，从而更好地支持动态TDD，更好地支持前向兼容，更好地支持多波束传输。
在第一方面的再一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，
第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第一方面的再一种可实现方式中，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
在第一方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成；第二序列由两个31长序列按照第二组合方式生成；第一组合方式与第二组合方式不同。
在第一方面的再一种可实现方式中，***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号的时域偏移。
该方法中，该终端确定该承载该同步信号在一个无线帧的时域位置，可实现支持多波束传输下终端进行帧定时。
在第一方面的再一种可实现方式中，***信息对应的扰码用于指示承载***信息的子帧。
在第一方面的再一种可实现方式中，同步信号为辅同步信号。
第二方面，本申请实施例还提供一种信息传输方法，可包括：
终端确定同步信号对应的序列；
终端根据同步信号对应的序列确定承载***信息的时频资源。
该信息传输方法中，承载***信息的不同时频资源可对应不同的应用场景，可使得同步信号对应的不同序列对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
在第二方面的一种可实现方式中，其中，终端根据同步信号对应的序列确定承载***信息的时频资源包括：
若同步信号对应的序列为第一序列，则终端确定承载***信息的时频资源为第一时频资源；
若同步信号对应的序列为第二序列，则终端确定承载***信息的时频资源为第二时频资源；
第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源对应的频域位置包括承载同步信号的时频资源对应的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源对应的频域位置与承载同步信号的时频资源对应的频域位置间隔固定的频率偏移。
在第二方面的另一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第二方面的又一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成；第二序列由两个31长序列按照第二组合方式生成；第一组合方式与第二组合方式不同。
第三方面，本申请实施例还可提供一种信息传输方法，包括：
网络设备确定承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔；
网络设备根据同步信号对应的子载波间隔发送同步信号。
该方法中，服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
在第三方面的另一种可实现方式中，网络设备根据同步信号对应的子载波间隔发送同步信号之前，该方法还包括：
网络设备根据同步信号对应的子载波间隔，确定子载波间隔对应的循环前缀集合；
网络设备根据循环前缀集合，确定承载同步信号的符号对应的循环前缀为循环前缀集合中最长的循环前缀。
在第三方面的又一种可实现方式中，网络设备根据同步信号对应的子载波间隔发送同步信号，包括：
网络设备根据同步信号对应的子载波间隔和承载同步信号的符号对应的循环前缀发送同步信 号。
在第三方面的再一种可实现方式中，该方法还可包括：
网络设备确定承载***信息的时频资源；
网络设备根据承载***信息的时频资源确定同步信号对应的序列。
该信息传输方法中，承载***信息的不同时频资源可对应不同的应用场景，可使得同步信号对应的不同序列对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
在第三方面的再一种可实现方式中，网络设备根据承载***信息的时频资源确定同步信号对应的序列，可包括：
若承载***信息的时频资源为第一时频资源，则网络设备确定同步信号对应的序列为第一序列；
若承载***信息的时频资源为第二时频资源，则网络设备确定同步信号对应的序列为第二序列；
第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源的频域位置包括承载同步信号的时频资源的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源的频域位置与承载同步信号的时频资源的频域位置间隔固定的频率偏移。
在第三方面的再一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第三方面的再一种可实现方式中，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
在第三方面的再一种可实现方式中，网络设备根据承载***信息的时频资源确定同步信号对应的序列，包括：
若承载***信息的时频资源为第一时频资源，则网络设备确定同步信号对应的序列为第一序列；
若承载***信息的时频资源为第二时频资源，则网络设备确定同步信号对应的序列为第二序列；
第一时频资源与承载同步信号的时频资源时分复用，第二时频资源与承载同步信号的时频资源频分复用。
在第三方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成，第一组合方式与第二组合方式不同。
在第三方面的再一种可实现方式中，***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号的时域偏移。
在第三方面的再一种可实现方式中，***信息对应的扰码用于指示承载***信息的子帧。
在第三方面的再一种可实现方式中，同步信号为辅同步信号。
第四方面，一种信息传输方法，包括：
网络设备确定承载***信息的时频资源；
网络设备根据承载***信息的时频资源确定同步信号对应的序列。
在第四方面的一种可实现方式中，网络设备根据承载***信息的时频资源确定同步信号对应的序列，包括：
若承载***信息的时频资源为第一时频资源，则网络设备确定同步信号对应的序列为第一序列；
若承载***信息的时频资源为第二时频资源，则网络设备确定同步信号对应的序列为第二序列；
第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源的频域位置包括承载同步信号的时频资源的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源的频域位置与承载同步信号的时频资源的频域位置间隔固定的频率偏移。
在第四方面的另一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第四方面的又一种可实现方式中，网络设备根据承载***信息的时频资源确定同步信号对应的序列，包括：
若承载***信息的时频资源为第一时频资源，则网络设备确定同步信号对应的序列为第一序列；
若承载***信息的时频资源为第二时频资源，则网络设备确定同步信号对应的序列为第二序列；
第一时频资源与承载同步信号的时频资源时分复用，第二时频资源与承载同步信号的时频资源频分复用。
在第四方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成，第一组合方式与第二组合方式不同。
第五方面，本申请实施例还提供一种终端，包括：
接收单元，用于接收网络设备发送的信息；
处理单元，用于确定同步信号对应的子载波间隔，同步信号对应的子载波间隔为承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔，并根据同步信号对应的子载波间隔和接收到的网络设备发送的信息检测同步信号。
在第五方面的一种可实现方式中，承载同步信号的符号对应的循环前缀，为同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
在第五方面的另一种可实现方式中，处理单元，还用于根据同步信号对应的序列确定承载***信息的时频资源。
在第五方面的又一种可实现方式，处理单元，具体用于若同步信号对应的序列为第一序列，则确定承载***信息的时频资源为第一时频资源；若同步信号对应的序列为第二序列，则确定承载***信息的时频资源为第二时频资源；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源对应的频域位置包括承载同步信号的时频资源对应的频域位置；第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源对应的频域位置与承载同步信号的时频资源对应的频域位置间隔固定的频率偏移。
在第五方面的又一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第五方面的再一种可实现方式中，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
在第五方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成；第二序列由两个31长序列按照第二组合方式生成；第一组合方式与第二组合方式不同。
在第五方面的再一种可实现方式中，该***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号的时域偏移。
在第五方面的再一种可实现方式中，***信息对应的扰码用于指示承载***信息的子帧。
在第五方面的再一种可实现方式中，同步信号为辅同步信号。
第六方面，本申请实施例还提供一种终端，包括：
接收单元，用于接收网络设备发送的同步信号；
处理单元，用于根据所述接收到的网络设备发送的同步信号确定同步信号对应的序列，并根 据同步信号对应的序列确定承载***信息的时频资源。
在第六方面的一种可实现方式中，处理单元，具体用于若同步信号对应的序列为第一序列，则确定承载***信息的时频资源为第一时频资源；若同步信号对应的序列为第二序列，则确定承载***信息的时频资源为第二时频资源；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源对应的频域位置包括承载同步信号的时频资源对应的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源对应的频域位置与承载同步信号的时频资源对应的频域位置间隔固定的频率偏移。
在第六方面的另一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第六方面的又一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成；第一组合方式与第二组合方式不同。
第七方面，本申请实施例还提供一种网络设备，包括：
处理单元，用于确定同步信号对应的子载波间隔，同步信号对应的子载波间隔为承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔；
发送单元，用于根据同步信号对应的子载波间隔发送同步信号。
在第七方面的一种可实现方式中，处理单元，还用于根据同步信号对应的子载波间隔，确定子载波间隔对应的循环前缀集合；根据循环前缀集合，确定承载同步信号的符号对应的循环前缀为循环前缀集合中最长的循环前缀。
在第七方面的另一种可实现方式中，发送单元，具体用于根据同步信号对应的子载波间隔和承载同步信号的符号对应的循环前缀发送同步信号。
在第七方面的又一种可实现方式中，处理单元，还用于确定承载***信息的时频资源；根据承载***信息的时频资源确定同步信号对应的序列。
在第七方面的再一种可实现方式中，处理单元，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源的频域位置包括承载同步信号的时频资源的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源的频域位置与承载同步信号的时频资源的频域位置间隔固定的频率偏移。
在第七方面的再一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符 号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第七方面的再一种可实现方式中，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
在第七方面的再一种可实现方式中，处理单元，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源与承载同步信号的时频资源时分复用，第二时频资源与承载同步信号的时频资源频分复用。
在第七方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成，第一组合方式与第二组合方式不同。
在第七方面的再一种可实现方式中，***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号的时域偏移。
在第七方面的再一种可实现方式中，***信息对应的扰码用于指示承载***信息的子帧。
在第七方面的再一种可实现方式中，同步信号为辅同步信号。
第八方面，本申请实施例还提供一种网络设备，包括：
处理单元，用于确定承载***信息的时频资源；根据承载***信息的时频资源确定同步信号对应的序列；
发送单元，用于发送同步信号。
在第八方面的一种可实现方式中，处理单元，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源的频域位置包括承载同步信号的时频资源的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源的频域位置与承载同步信号的时频资源的频域位置间隔固定的频率偏移。
在第八方面的另一种可实现方式中，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
在第八方面的又一种可实现方式中，处理单元，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源与承载同步信号的时频资源时分复用，第二时频资源与承载同步信号的时频资源频分复用。
在第八方面的再一种可实现方式中，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成，第一组合方式与第二组合方式不同。
本申请实施例提供的一种信息传输方法、终端及网络设备，其中，网络设备可确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，并根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号，终端确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，继而根据该同步信号对应的子载波间隔检测同步信号。服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
附图说明
图1为本申请实施例一提供的一种信息传输方法的流程图；
图2为本申请实施例二提供的一种信息传输方法的流程图；
图3为第一时频资源与承载该同步信号的时频资源的对应关系图；
图4为第二时频资源与承载该同步信号的时频资源的对应关系图；
图5为本申请实施例二提供的另一种信息传输方法的流程图；
图6为本申请实施例二提供的又一种信息传输方法的流程图；
图7为本申请实施例三提供的一种信息传输方法的流程图；
图8为本申请实施例三提供的另一种信息传输方法的流程图；
图9为本申请实施例四提供的一种终端的结构示意图；
图10为本申请实施例五提供的一种终端的结构示意图；
图11为本申请实施例六提供的一种网络设备的结构示意图；
图12为本申请实施例七提供的一种网络设备的结构示意图。
具体实施方式
本申请各实施例提供的信息传输方法、装置、终端及网络设备，可应用在5G通信***、NR通信***以及在其基础上的更先进的演进通信***中，以支持多种不同的应用场景。
本申请下述各实施例所涉及的终端可以为5G通信技术、NR通信技术或者后续更先进的通信技术的终端；各网络设备可以为5G通信技术、NR通信技术或者后续更先进的通信技术的网络设备。
其中，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订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、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)、或用户装备(User Equipment)。
网络设备可以为接入网设备，如基站，又称接入点(Access Point，AP)。本申请中描述的基站是无线电台站的一种形式，是指在一定的无线电覆盖区中，通过移动通信交换中心与移动电话终端之间进行信息传递的无线电收发信电台；或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与互联网协议(Internet Protocol，IP)分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是基本传输站(Base Transceiver Station，BTS)、基本站点(Node Base，NodeB)、演进型基站(evolutional NodeB，eNB)等任一，本申请并不限定。
本申请下述各实施例提供的信息传输方法，可网络设备可确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，并根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号，终端确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，继而根据该同步信号对应的子载波间隔检测同步信号。服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
本申请下述各实施例通过多个实例对信息传输方法进行举例说明。需要说明的是，本申请所有实施例中，若无特殊说明，并不限制各实施例中各步骤之间的先后顺序，也不限定各步骤之间的相互依赖关系。
图1为本申请实施例一提供的一种信息传输方法的流程图。如图1所示，该方法可包括：
S101、网络设备确定同步信号对应的子载波间隔；
该步骤S101中，网络设备确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔。
具体地，网络设备可以是根据承载该同步信号的服务小区对应的子载波间隔集合，确定该子载波间隔集合中最大的子载波间隔为该同步信号对应的子载波间隔。
其中，服务小区可以为终端的主服务小区(Primary serving cell)，也可以为终端的辅服务小区(Secondary serving cell)。在本申请的一种实现方式中，上述服务小区(serving cell)还可以称为载波(carrier)，即一个服务小区就是一个载波。
举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合包括：15kHz子载波间隔和30kHz子载波间隔，则该网络设备可以是将该子载波间隔集合中最大的子载波间隔，也就是 30kHz子载波间隔确定为该同步信号对应的子载波间隔。
在另一个实施例中，该步骤S101中，网络设备确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中最小的子载波间隔。
具体地，网络设备可以是根据承载该同步信号的服务小区对应的子载波间隔集合，确定该子载波间隔集合中最小的子载波间隔为该同步信号对应的子载波间隔。
举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合包括：15kHz子载波间隔和30kHz子载波间隔，则该网络设备可以是将该子载波间隔集合中最大的子载波间隔，也就是15kHz子载波间隔确定为该同步信号对应的子载波间隔。
在又一个实施例中，该步骤S101中，网络设备确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中第一子载波间隔，该第一子载波间隔不为该子载波间隔集合中的最小的子载波间隔，也不为该子载波间隔集合中的最大的子载波间隔，例如可以为该子载波间隔集合中的第二大子载波间隔。举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合包括：15kHz子载波间隔、30kHz子载波间隔和60kHz子载波间隔，则该网络设备可以是将该子载波间隔集合中最大的子载波间隔，也就是30kHz子载波间隔确定为该同步信号对应的子载波间隔。
在该实施例下，无论该服务小区的其他信道或信号采用该服务小区对应的子载波间隔集合中的哪一个子载波间隔，网络设备都采用相同的子载波间隔发送同步信号，可使得终端无需对同步信号进行盲检以识别同步信号采用的子载波间隔，缩短了终端检测同步信号的时间，缩短了终端与服务小区同步的时间，即缩短了终端接入服务小区的时间，提高终端检测同步信号的成功率，提高终端接入小区的成功率。
服务小区对应的子载波间隔集合中的不同的子载波间隔通常可应用于不同的场景，例如大子载波间隔用于高频、低延迟业务及高速传输等至少一种场景，小子载波间隔用于低频及大覆盖场景等至少一种常见。因而，本申请实施例的信息传输方法，对于服务小区对应的子载波间隔集合中的不同的子载波间隔，均可采用相同的子载波间隔发送同步信号和/或广播信道，可实现不同场景采用统一的同步信号和***信息传输方法。
同时，当采用该服务小区对应的子载波间隔集合中最大的子载波间隔发送同步信号时，可以使得该同步信号能够对抗高速场景带来的多普勒偏移，提供同步信号的检测成功率。
该步骤S101中，还可以包括：网络设备确定广播信道对应的子载波间隔，该广播信道对应的子载波间隔与该同步信号对应的子载波间隔相同。例如，该广播信道对应的子载波间隔可以为该服务小区对应的子载波间隔集合中的最大的子载波间隔。其他描述如上，此处不再赘述。
S102、网络设备根据该同步信号对应的子载波间隔发送该同步信号。
具体地，该网络设备例如可以根据该同步信号对应的子载波间隔生成该同步信号对应的符号(如OFDM符号)，发送给终端。
在另一个实施例中，该步骤S102中，还可以包括：
网络设备确定承载该同步信号的符号对应的循环前缀，该循环前缀可以为该同步信号对应的子载波间隔对应的循环前缀(Cyclic Prefix，CP)中最长的循环前缀；
网络设备根据该承载该同步信号的符号对应的循环前缀和该同步信号对应的子载波间隔发送该同步信号。
需要说明的是，本申请的各实施例中的同步信号例如可以包括：主同步信号和辅同步信号。本申请各实施例所提及的符号例如可以为单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)符号，也可以为正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号。
S103、终端确定同步信号对应的子载波间隔；
该步骤S103中，终端确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔。
具体地，终端可以是根据承载该同步信号的服务小区对应的子载波间隔集合，确定该子载波间隔集合中最大的子载波间隔为该同步信号对应的子载波间隔。
举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合可包括：15kHz子载波间隔和30kHz子载波间隔，则该终端可以是将该子载波间隔集合中最大的子载波间隔，也就是30kHz子载波间隔确定为该同步信号对应的子载波间隔。
在另一个实施例中，该步骤S103中，终端确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中最小的子载波间隔。
具体地，终端可以是根据承载该同步信号的服务小区对应的子载波间隔集合，确定该子载波间隔集合中最小的子载波间隔为该同步信号对应的子载波间隔。
举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合包括：15kHz子载波间隔和30kHz子载波间隔，则该网络设备可以是将该子载波间隔集合中最大的子载波间隔，也就是15kHz子载波间隔确定为该同步信号对应的子载波间隔。
在又一个实施例中，该步骤S103中，终端确定同步信号对应的子载波间隔，该同步信号对应的子载波间隔可以为承载该同步信号的服务小区对应的子载波间隔集合中第一子载波间隔，该第一子载波间隔不为该子载波间隔集合中的最小的子载波间隔，也不为该子载波间隔集合中的最大的子载波间隔，例如可以为该子载波间隔集合中的第二大子载波间隔。举例来说，若该承载该同步信号的服务小区对应的子载波间隔集合包括：15kHz子载波间隔、30kHz子载波间隔和60kHz子载波间隔，则该网络设备可以是将该子载波间隔集合中最大的子载波间隔，也就是30kHz子载波间隔确定为该同步信号对应的子载波间隔。
在该实施例下，无论该服务小区的其他信道或信号采用该服务小区对应的子载波间隔集合中的哪一个子载波间隔，终端都采用相同的子载波间隔检测同步信号，可使得终端无需对同步信号进行盲检以识别同步信号采用的子载波间隔，缩短了终端检测同步信号的时间，缩短了终端与服务小区同步的时间，即缩短了终端接入服务小区的时间，提高终端检测同步信号的成功率，提高终端接入小区的成功率。
服务小区对应的子载波间隔集合中的不同的子载波间隔通常可应用于不同的场景，例如大子载波间隔用于高频、低延迟业务及高速传输等至少一种场景，小子载波间隔用于低频及大覆盖场景等至少一种常见。因而，本申请实施例的信息传输方法，对于服务小区对应的子载波间隔集合中的不同的子载波间隔，均可采用相同的子载波间隔发送同步信号和/或广播信道，可实现不同场景采用统一的同步信号和***信息传输方法。
同时，当终端采用该服务小区对应的子载波间隔集合中最大的子载波间隔检测同步信号时，可以使得该同步信号能够对抗高速场景带来的多普勒偏移，提供同步信号的检测成功率。
该步骤S103中，还可以包括：终端确定广播信道对应的子载波间隔，该广播信道对应的子载 波间隔与该同步信号对应的子载波间隔相同。例如，该广播信道对应的子载波间隔可以为该服务小区对应的子载波间隔集合中的最大的子载波间隔。其他描述如上，此处不再赘述。
S104、终端根据该同步信号对应的子载波间隔检测同步信号。
该步骤S104中，终端根据该同步信号对应的子载波间隔检测同步信号。具体，可以利用不同的本地序列与接收信号做相关，从而确定同步信号对应的序列。对于特定的序列，终端可以根据该同步信号对应的子载波间隔生成对应的OFDM符号，利用生成的OFDM符号与接收信号做相关，因此用户设备需先确定同步信号对应的子载波间隔，再根据同步信号对应的子载波间隔检测同步信号。
该步骤S104还可以进一步包括：终端确定承载同步信号的符号对应的循环前缀。此时，终端可以根据检测到的同步信号，确定承载同步信号的符号对应的循环前缀。该承载同步信号的符号对应的循环前缀为该同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
需要说明的是，同步信号对应的不同序列可承载不同的信息，例如不同序列承载终端的服务小区的小区ID。因而，终端在确定该同步信号对应的序列后，还可根据该同步信号对应的序列确定该终端的服务小区的小区ID。该终端的服务小区例如可以为网络设备为该终端配置的服务小区，还可以为正在为该终端服务的服务小区，或者该终端正在接入的服务小区等。
可选地，在该步骤S104可以包括：
终端接收网络设备发送的信息；
所述终端根据所述同步信号对应的子载波间隔和所述接收到的网络设备发送的信息检测所述同步信号。
需要说明的是，此时，所述网络设备发送的信息可以包括同步信号也可可能不包括同步信号，但终端都会执行上述操作。只是当所述网络设备发送的信息不包括同步信号时，终端无法检测到同步信号。当所述网络设备发送的信息包括同步信号时，终端能够检测到同步信号。
本申请实施例一提供的信息传输方法中，网络设备可确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，并根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号，终端确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，继而根据该同步信号对应的子载波间隔检测同步信号。服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
可选的，在如上所述的信息传输方法的基础上，承载该同步信号的符号对应的循环前缀，为该同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
具体地，该同步信号对应的子载波间隔对应的循环前缀例如可包括：正常循环前缀和扩展循环前缀，则承载该同步信号的符号对应的循环前缀可以为该同步信号对应的子载波间隔对应的循环前缀最长的循环前缀，也就是扩展循环前缀。
举例来说，服务小区的同步信号对应的循环前缀和/或服务小区的广播信道对应的循环前缀可以为该同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀，如扩展循环前缀。
上述服务小区的同步信号对应的循环前缀和/或服务小区的广播信道对应的循环前缀可以大于服务小区上的数据信道对应的循环前缀。
该方法中例如可以是根据该同步信号对应的子载波间隔，在预设的子载波间隔与***参数的对应关系表中查找该同步信号对应的子载波间隔对应的循环前缀，并将该同步信号对应的子载波 间隔对应的循环前缀中最长的循环前缀确定为承载该同步信号的符号对应的循环前缀。其中，子载波间隔与***参数的对应关系表例如可以参见表1所示。在表1中，各子载波间隔对应的***参数可包括子帧长度、符号个数、CP长度、CP开销等。
需要说明的是，表1中的数值仅为举例，表1中的数值还可以为四舍五入后的值，例如，本实施例中的有效符号长度和CP长度可以为近似于表中的数值的数。另外，不限定表中各参数间的相互依赖关系。其中，各子载波间隔对应的CP长度包括正常循环前缀对应的CP长度，和扩展循环前缀对应的CP长度的两个CP长度。其中，最小的CP长度为正常循环前缀对应的CP长度，最大的CP长度为扩展循环前缀对应的CP长度。
表1
Figure PCTCN2017095652-appb-000001
若该同步信号对应的子载波间隔为30kHz，参见表1可知30kHz子载波间隔对应的循环前缀包括：正常循环前缀2.38us和扩展循环前缀8.33us，则可确定承载该同步信号的符号对应的循环前缀可以为扩展循环前缀8.33us。
当上述服务小区上的数据信道对应的循环前缀约为2.38μs或约为4.76μs时，则服务小区的同步信号对应的循环前缀约和上述服务小区的广播信道对应的循环前缀约可以为5.13μs。
其中，这里所说的服务小区的同步信号对应的循环前缀可以为承载该同步信号的符号对应的循环前缀；服务小区的广播信道对应的循环前缀可以为承载广播信道的符号对应的循环前缀；服务小区上的数据信道对应的循环前缀可以为承载数据的符号对应的循环前缀。这里所说的广播信道可以为传输主信息块(Master Information Block，MIB)的信道。
通过这种方式，可以扩大服务小区的同步信号和服务小区的广播信道的覆盖范围，提高服务小区的同步信号和服务小区的广播信道的鲁棒性。
可选的，如上所述的该终端根据承载该同步信号的服务小区对应的子载波间隔集合，确定该子载波间隔集合中最大的子载波间隔为该同步信号对应的子载波间隔之前，该信息传输方法还可包括：
终端根据服务小区的载波频率，确定服务小区对应的子载波间隔集合，或者，
终端根据服务小区的频率集合，确定服务小区对应的子载波间隔集合。
具体地，终端可以是根据服务小区对应的频率集合，在预设的频率集合与子载波间隔集合的对应关系中查找与该服务小区对应的频率集合对应的子载波间隔集合，该子载波间隔集合即为服务小区对应的子载波间隔集合；还可以根据服务小区对应的频率集合，计算子载波间隔集合，并将计算出的子载波间隔集合作为服务小区对应的子载波间隔集合等。其中，终端例如可以是将服 务小区的载波频率所处的频率集合确定为服务小区对应的频率集合；还可以根据预设的服务小区与频率集合的对应关系，确定服务小区对应的频率集合，例如可以根据预设的服务小区的标识与频率集合的对应关系，以及，服务小区的标识，确定服务小区对应的频率集合。
可选的，终端可以根据服务小区的载波频率，在预设的载波频率与子载波间隔集合的对应关系中查找与该服务小区的载波频率对应的子载波间隔集合，该子载波间隔集合即为服务小区对应的子载波间隔集合；还可以根据服务小区的载波频率，计算子载波间隔集合，并将计算出的子载波间隔集合作为服务小区对应的子载波间隔集合等。其中，终端可以是通过扫频的方式获取服务小区的载波频率，还可以根据其上预设的服务小区的载波频率获取该服务小区的载波频率。
可选的，在上述任一所述的方法的基础上，本申请实施例二还可提供一种信息传输方法。图2为本申请实施例二提供的一种信息传输方法的流程图。如图2所示，该方法还可包括：
S201、终端根据该同步信号对应的序列确定承载***信息的时频资源。
具体地，终端例如可以是根据检测获得的该同步信号对应的序列，和/或，预设的同步信号序列与***信息时频资源的对应关系，确定承载***信息的时频资源。终端在确定该承载***信息的时频资源后，便可在该承载***信息的时频资源上，接收网络设备发送的***信息。
其中，该***信息可以为主信息块(MIB)，承载该***信息的信道可以为物理广播信道。
可选地，该***信息可以包括符号位置指示域，该符号位置指示域用于指示承载该同步信号的时域位置。
举例来说，该符号位置指示域可用于指示该同步信号的起始符号的位置。或者，
该符号位置指示域用于指示承载该同步信号的起始符号的索引。或者，
该符号位置指示域用于指示承载该同步信号的起始符号与承载该同步信号的子帧的第一个符号的时域偏移。或者，
该位置指示域用于指示承载主同步信号的起始符号的位置。或者，
该符号位置指示域用于指示承载主同步信号的起始符号的索引。或者，
该符号位置指示域用于指示承载主同步信号的起始符号与承载该主同步信号的子帧的第一个符号的时域偏移。
进一步可选地，该***信息对应的扰码用于指示承载该***信息的子帧。
可选的，如上所述的方法的基础上，该方法还可包括：
S202、终端根据该承载***信息的时频资源接收该***信息。
具体地，该终端可根据该***信息包括的符号位置指示域和/或***信息对应的扰码，确定该承载该同步信号的时域位置。其中，该承载该同步信号的时域位置例如可以为承载该同步信号的起始符号的位置、承载该同步信号的起始符号的索引、承载该同步信号的起始符号与承载该同步信号的子帧的第一个符号的时域偏移、承载主同步信号的起始符号的位置、承载主同步信号的起始符号的索引、承载主同步信号的起始符号与承载该主同步信号的子帧的第一个符号的时域偏移，以及承载该***信息的子帧中至少一种。
该终端确定该承载该同步信号在一个无线帧的时域位置，可实现支持多波束传输下终端进行帧定时，终端确定服务小区的无线帧定时。
可选的，如上所述的该方法中S201中终端根据该同步信号对应的序列确定该承载***信息的时频资源，可以包括：
若该同步信号对应的序列为第一序列，则终端确定该承载***信息的时频资源为第一时频资 源；
若该同步信号对应的序列为第二序列，则终端确定该承载***信息的时频资源为第二时频资源。
其中，该第一时频资源的频域位置与承载该同步信号的时频资源的频域位置相同，或该第一时频资源的频域位置包括承载该同步信号的时频资源的频域位置。
该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻；或，该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置间隔固定的频率偏移。
可选的，该第一时频资源位置占用的资源块个数与承载该同步信号的时频资源占用的资源块个数相同；和/或，该第二时频资源位置占用的资源块个数与承载该同步信号的时频资源占用的资源块个数相同
可选的，该第一时频资源的起始符号，与承载该同步信号的最后一个符号相邻；或该第一时频资源的起始符号为承载该同步信号的最后一个符号的下一个符号；或若承载该同步信号的最后一个符号为符号l，则该第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；mod为取余函数。
该第二时频资源的符号与承载该同步信号的符号相同；或该第二时频资源的起始符号，与承载该同步信号包括的主同步信号的起始符号相同。
可选的，该第一时频资源占用的时域符号个数与承载该同步信号的时频资源占用的符号个数相同。或者，该第一时频资源占用的时域符号个数为承载该同步信号的时频资源占用的符号个数的2倍。
可选的，第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻，具体可以包括：
该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻，且分布在承载该同步信号的时频资源的频域位置的两边。
举例来说，该第二时频资源例如可以包括第三时频资源和第四时频资源，第三时频资源的频域位置和第四时频资源的频域位置均与承载该同步信号的时频资源的频域位置相邻，且分布在承载该同步信号的时频资源对应的频域位置的两边。该第三时频资源占用的资源块个数与该第四时频资源占用的资源块个数可以相同。
其中，该第三时频资源的频域位置例如可大于承载该同步信号的时频资源的最大频域位置，该第四时频资源的频域位置可小于承载该同步信号的时频资源的最小频域位置。或者，该第四时频资源的频域位置例如可大于承载该同步信号的时频资源的最大频域位置，该第三时频资源的频域位置可小于承载该同步信号的时频资源的最小频域位置。
进一步可选地，该第三时频资源占用的资源块个数与该第四时频资源占用的资源块个数之和，可以与承载该同步信号的时频资源占用的资源块个数相同。
可替代地，S201中终端根据该同步信号对应的序列确定该承载***信息的时频资源，可以包括：
若该同步信号对应的序列为第一序列，则终端确定该承载***信息的时频资源为第一时频资源；
若该同步信号对应的序列为第二序列，则该终端确定该承载***信息的时频资源为第二时频资源。
其中，该第一时频资源与承载该同步信号的时频资源时分复用，该第二时频资源与承载该同步信号的时频资源频分复用。
举例来说，图3为第一时频资源与承载该同步信号的时频资源的对应关系图。图4为第二时频资源与承载该同步信号的时频资源的对应关系图。
如图3所示，若该同步信号对应的序列为第一序列，则该承载***信息的时频资源为第一时频资源，该第一时频资源可以为图3中的物理广播信道(Physical Broadcast Channel，PBCH)对应的时频资源，如PBCH B0对应的时频资源，或者，PBCH B1对应的时频资源，承载该同步信号的时频资源为图3中的辅同步信号(Secondary Synchronization Signal，SSS)对应的时频资源，如SSS B0对应的时频资源，或者，SSS B1对应的时频资源。图3中，B0和B1可分别对应不同终端的传输波束，对于一个终端，该***信息和该同步信号可采用相同的波束，如B0波束或B1波束。***信息可承载在该PBCH上传输。图3中，PBCH B0对应的时频资源可与SSS B0对应的时频资源分别位于同一子帧的不同符号上，也就是说，PBCH B0对应的时频资源可与SSS B0对应的时频资源时分复用；PBCH B1对应的时频资源可与SSS B1对应的时频资源分别位于同一子帧的不同符号上，也就是说，PBCH B1对应的时频资源可与SSS B1对应的时频资源时分复用。
如图4所示，若该同步信号对应的序列为第二序列，则该承载***信息的时频资源为第二时频资源，该第二时频资源可以为图4中的PBCH对应的时频资源，如PBCH B0对应的时频资源，或者，PBCH B1对应的时频资源，承载该同步信号的时频资源为图4中的SSS对应的时频资源，如SSS B0对应的时频资源，或者，SSS B1对应的时频资源。图4中，B0和B1可分别对应不同终端的传输波束，对于一个终端，该***信息和该同步信号可采用相同的波束，如B0波束或B1波束。***信息可承载在该PBCH上传输。图4中，PBCH B0对应的时频资源可与SSS B0对应的时频资源分别位于同一子帧内的同一符号的不同频域位置上，也就是说，PBCH B0对应的时频资源可与SSS B0对应的时频资源频分复用；PBCH B1对应的时频资源可与SSS B1对应的时频资源分别位于同一子帧的同一符号的不同频域位置上，也就是说，PBCH B1对应的时频资源可与SSS B1对应的时频资源频分复用。
结合图3和图4可知，若***采用多个波束传输方式时，若同步信号对应的序列为第一序列，则承载该***信息的时频资源为第一时频资源，第一时频资源与承载该同步信号的时频资源时分复用，可使得第一时频资源和承载该同步信号的时频资源占用的时域符号较多，如占用多个子帧；若***采用多个波束传输方式时，若同步信号对应的序列为第二序列，则承载该***信息的时频资源为第二时频资源，第二时频资源与承载该同步信号的时频资源频分复用，可使得第二时频资源和承载该同步信号的时频资源占用的时域符号较少，如占用较少个数的子帧。
在动态时分双工(Time Division Duplexing，TDD)机制中，一个子帧或一个传输单元的传输方向可以动态变化，即可动态应用于上行数据传输或下行数据传输，从而能够更好地匹配当前业务需求。例如，若当前业务下下行业务多于上行业务，则可将绝大部分子帧动态变为下行数据传输，从而使得下行业务能够更快更好地传输，提供***频谱效率，减少下行数据包延迟。本申请实施例的信息传输方法，可根据同步信号对应的序列确定承载***信息的时频资源为第一时频资源或第二时频资源，并非固定的采用第一时频资源传输***信息，而可通过采用第二时频资源传输***信息，避免多个波束对应的同步信号和***信息占用的时频资源占用大量时域符号，使得一个无线帧中固定下行符号个数最小化，最大化的保证足够多的时域符号或子帧可灵活在上下行之间变化，更好地支持动态TDD。
前向兼容要求一个无线帧中的某个子帧或一个服务小区上的某个频域块能够灵活被未来业务占用而不影响现有***中的终端，由于该方法中可根据同步信号对应的序列确定承载***信息的时频资源为第一时频资源或第二时频资源，并非固定的采用第一时频资源传输***信息，而可通过采用第二时频资源传输***信息，使得一个无线帧中同步信号和***信息占用的时频资源占用的时域符号或子帧个数最小花，最大化地支持前向兼容，从而使得NR***更灵活地更好地支持前向兼容。
该方法中，对于每个波束，并非固定的采用该每个波束对应的同步信号和承载***信息的时频资源按照时分复用的方式，可使得多波束传输时，利用第二时频资源传输***信息，从而使得多个波束对应的同步信号占用的时频资源时域上相邻，更快地扫描完所有波束的同步信号，缩短终端的接入小区时间。
并且，该方法中，对于每个波束，并非固定的采用该每个波束对应的同步信号和承载***信息的时频资源按照频分复用的方式，可避免占用过多的频域资源。NR***需支持不同带宽能力的终端的接入，带宽能力较小的某些终端，可采用该每个波束对应的同步信号和承载***信息的时频资源按照时分复用的方式，并非固定地采用第二时频资源传输***信息，而采用第一时频资源传输***信息，使得承载同步信号和***信息的带宽最小化，从而高效支持不同带宽能力的终端接入小区。
因而，本申请实施例中，根据同步信号对应的序列确定承载***信息的时频资源为第一时频资源或第二时频资源，从而使得***可以根据实际应用场景和实际需求，灵活采用第一时频资源和/或第二时频资源承载***信息，从而更好地支持动态TDD，更好地支持前向兼容，更好地支持多波束传输。
可选的，如上所述的第一序列可以由两个31长序列按照第一组合方式生成；该第二序列由该两个31长序列按照第二组合方式生成。该第一组合方式与该第二组合方式不同。
具体地，每个31长序列可以为一个31比特长的二进制序列。
该第一序列和该第二序列可以为对相同的两个序列采用不同的组合方式生成的序列。其中，第一组合方式和第二组合方式不同。
可选的，本申请实施例二还可提供一种信息传输方法。图5为本申请实施例二提供的另一种信息传输方法的流程图。如图5所示，该方法在所述的信息传输方法中，在S102中网络设备根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号之前，该方法可以包括：
S501、网络设备根据该同步信号对应的子载波间隔，确定该子载波间隔对应的循环前缀集合。
S502、网络设备根据该循环前缀集合，确定承载该同步信号的符号对应的循环前缀为该循环前缀集合中最长的循环前缀。
具体地，该子载波间隔对应的循环前缀集合可包括至少一个循环前缀，该网络设备可以是确定承载该同步信号的符号对应的循环前缀为该循环前缀集合中最长的循环前缀。循环前缀集合中例如可包括正常循环前缀和扩展循环前缀，该循环前缀集合中最长的循环前缀例如可以为扩展循环前缀。
可选的，在S102中网络设备根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号可包括：
S503、网络设备根据该同步信号对应的子载波间隔和承载该同步信号的符号对应的循环前缀发送该同步信号。
具体地，网络设备可以是根据该同步信号对应的子载波间隔和承载该同步信号的符号对应的循环前缀，生成该同步信号对应的符号，继而根据该同步信号对应的符号发送该同步信号。
可选地，承载***信息的符号对应的子载波间隔与承载该同步信号的子载波间隔相同。
可选的，在上述任一所述的信息处传输方法的基础上，本申请实施例二还提供一种信息传输方法。图6为本申请实施例二提供的又一种信息传输方法的流程图。如图6所示，该方法还可包括：
S601、网络设备确定承载***信息的时频资源。
具体地，网络设备可以根据当前应用场景确定该承载***信息的时频资源为第一时频资源或者第二时频资源。其中，第一时频资源和第二时频资源分别为不同时频位置的时频资源。
例如，当应用场景为动态TDD场景时，网络设备可确定第二时频资源为承载***信息的时频资源；当应用场景为时域上需支持前向兼容时，网络设备可确定第二时频资源为承载***信息的时频资源；当***中存在低带宽能力用户时，网络设备可确定第一时频资源为承载***信息的时频资源。
S602、网络设备根据该承载***信息的时频资源确定该同步信号对应的序列。
具体地，承载***信息的时频资源不同，网络设备根据该S101所确定的该同步信号对应的序列便可不同。该网络设备例如可以是根据该承载***信息的时频资源，和，预设的***信息的时频资源与同步信号序列的对应关系，确定该承载***信息的时频资源对应的同步信号序列为该同步信号对应的序列，即待发送的同步信号对应的序列。
可选的，该方法还可包括：
S603、网络设备根据该同步信号对应的序列，生成待发送的该同步信号。
具体地，同步信号对应的不同序列可承载不同的信息，例如不同序列承载终端的服务小区的小区标识(Identity，ID)信息。
可选的，如上所述的信息传输方法中，该方法还可包括：
S604、网络设备根据该承载***信息的时频资源发送***信息。
其中，该***信息可以为主信息块(MIB)，承载该***信息的信道可以为物理广播信道。
可选地，该***信息可以包括符号位置指示域，该符号位置指示域用于指示承载该同步信号的时域位置。
举例来说，该符号位置指示域可用于指示该同步信号的起始符号的位置。或者，
该符号位置指示域用于指示承载该同步信号的起始符号的索引。或者，
该符号位置指示域用于指示承载该同步信号的起始符号与承载该同步信号的子帧的第一个符号的时域偏移。或者，
该位置指示域用于指示承载主同步信号的起始符号的位置。或者，
该符号位置指示域用于指示承载主同步信号的起始符号的索引。或者，
该符号位置指示域用于指示承载主同步信号的起始符号与承载该主同步信号的子帧的第一个符号的时域偏移。
进一步可选地，该***信息对应的扰码用于指示承载该***信息的子帧。
可选的，S602中网络设备根据该承载***信息的时频资源确定该同步信号对应的序列可以包括：
若该承载***信息的时频资源为第一时频资源，则网络设备确定该同步信号对应的序列为第 一序列；
若该承载***信息的时频资源为第二时频资源，则网络设备确定该同步信号对应的序列为第二序列。
其中，该第一时频资源的频域位置与承载该同步信号的时频资源的频域位置相同，或该第一时频资源的频域位置包括承载该同步信号的时频资源的频域位置。
该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻；或该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置间隔固定的频率偏移。
可选地，该第一时频资源占用的资源块个数与承载该同步信号的时频资源占用的资源块个数相同，和/或，该第二时频资源占用的资源块个数与承载该同步信号的时频资源占用的资源块个数相同；
可选地，该第一时频资源的起始符号，与承载该同步信号的最后一个符号相邻；或该第一时频资源对应的起始符号为承载该同步信号的最后一个符号的下一个符号；或承载该同步信号的最后一个符号为符号l，则该第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中，l＝0，1，…L-1，L为正整数，mod为取余函数。
该第二时频资源的符号与承载该同步信号的符号相同；或该第二时频资源的起始符号，与承载该同步信号包括的主同步信号的起始符号相同。
进一步可选地，该第一时频资源占用的时域符号个数与承载该同步信号的时频资源占用的符号个数相同。或者，该第一时频资源占用的时域符号个数为承载该同步信号的时频资源占用的符号个数的2倍。
进一步可选地，该第二时频资源的频域位置与承载该同步信号的时频资源对应的频域位置相邻，且分布在承载该同步信号的时频资源对应的频域位置的两边。
举例来说，该第二时频资源例如可以包括第三时频资源和第四时频资源，第三时频资源的频域位置和第四时频资源的频域位置均与承载该同步信号的时频资源的频域位置相邻，且分布在承载该同步信号的时频资源对应的频域位置的两边。该第三时频资源占用的资源块个数与该第四时频资源占用的资源块个数可以相同。
其中，该第三时频资源的频域位置例如可大于承载该同步信号的时频资源的最大频域位置，该第四时频资源的频域位置可小于承载该同步信号的时频资源的最小频域位置。或者，该第四时频资源的频域位置例如可大于承载该同步信号的时频资源的最大频域位置，该第三时频资源的频域位置可小于承载该同步信号的时频资源的最小频域位置。
进一步可选地地，该第三时频资源占用的资源块个数与该第四时频资源占用的资源块个数之和，可以与承载该同步信号的时频资源占用的资源块个数相同。
可替代地，如上所述的S602中网络设备根据承载***信息的时频资源确定同步信号对应的序列可以包括：
若该承载***信息的时频资源为第一时频资源，则网络设备确定该同步信号对应的序列为第一序列；
若该承载***信息的时频资源为第二时频资源，则网络设备确定该同步信号对应的序列为第二序列。
其中，该第一时频资源与承载该同步信号的时频资源时分复用，该第二时频资源与承载该同步信号的时频资源频分复用。
需要说明的是，第一时频资源和第二时频资源的具体描述可参见上述描述，在此不再赘述。该终端确定该承载该同步信号在一个无线帧的时域位置，可实现支持多波束传输下终端进行帧定时，终端确定服务小区的无线帧定时。
本申请实施例二提供的各信息传输方法，根据同步信号对应的序列确定承载***信息的时频资源为第一时频资源或第二时频资源，从而使得***可以根据实际应用场景和实际需求，灵活采用第一时频资源和/或第二时频资源承载***信息，从而更好地支持动态TDD，更好地支持前向兼容，更好地支持多波束传输。并且，通过***信息包括符号位置指示域和/或***信息对应的扰码指示承载该***信息的子帧，可以支持多波束传输下终端进行帧定时，即确定承载同步信号在一个无线帧中的时域位置，从而确定服务小区的无线帧定时。
本申请实施例三还提供一种信息传输方法。图7为本申请实施例三提供的一种信息传输方法的流程图。如图7所示，该方法可包括：
S701、终端确定同步信号对应的序列。
具体地，该终端例如可以是采用上述实施例中S104的方式或类似的其他方式，确定该同步信号对应的序列。
可选地，该步骤S701还可以包括：
终端接收网络设备发送的同步信号；
终端根据该接收到的网络设备发送的同步信号确定同步信号对应的序列。
进一步可选地，终端接收网络设备发送的同步信号，可以包括：
终端接收网络设备发送的信息；
所述终端根据该接收到的网络设备发送的信息检测该同步信号。
需要说明的是，此时，网络设备发送的信息可以包括同步信号也可可能不包括同步信号，但终端都会执行上述操作。只是当网络设备发送的信息不包括同步信号时，终端无法检测到同步信号。当网络设备发送的信息包括同步信号时，终端能够检测到同步信号。
S702、终端根据该同步信号对应的序列确定承载***信息的时频资源。
具体地，S701的具体实现过程可参见上述S201的描述，在此不再赘述。
可选的，如上所述的S702中终端根据该同步信号对应的序列确定承载***信息的时频资源，可以包括：
若该同步信号对应的序列为第一序列，则该承载***信息的时频资源为第一时频资源；
若该同步信号对应的序列为第二序列，则该承载***信息的时频资源为第二时频资源；
该第一时频资源的频域位置与承载该同步信号的时频资源的频域位置相同，或该第一时频资源对应的频域位置包括承载该同步信号的时频资源对应的频域位置；
该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻；或该第二时频资源对应的频域位置与承载该同步信号的时频资源对应的频域位置间隔固定的频率偏移。
可选的，上述信息传输方式中，该第一时频资源的起始符号，与承载该同步信号的最后一个符号相邻；或该第一时频资源的起始符号为承载该同步信号的最后一个符号的下一个符号；或若承载该同步信号的最后一个符号为符号l，则该第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
该第二时频资源的符号与承载该同步信号的符号相同；或该第二时频资源的起始符号，与承载该同步信号包括的主同步信号的起始符号相同。
可选的，该第一序列由两个31长序列按照第一组合方式生成；该第二序列由该两个31长序列按照第二组合方式生成；该第一组合方式与该第二组合方式不同。
该信息传输方法中，终端可确定该同步信号对应的序列，继而根据该同步信号对应的序列确定承载***信息的时频资源，承载***信息的不同时频资源可对应不同的应用场景，可使得同步信号对应的不同序列对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
本申请实施例三还提供一种信息传输方法。图8为本申请实施例三提供的另一种信息传输方法的流程图。如图8所示，该方法可包括：
S801、网络设备确定承载***信息的时频资源。
具体地，该S801的具体实现过程可参见上述S601的描述，在此不再赘述。
S802、网络设备根据该承载***信息的时频资源确定该同步信号对应的序列。
具体地，该S802的具体实现过程可参见上述S602的描述，在此不再赘述。
可选的，如上所述的S802中网络设备根据该承载***信息的时频资源确定该同步信号对应的序列，包括：
若该承载***信息的时频资源为第一时频资源，则网络设备确定该同步信号对应的序列为第一序列；
若该承载***信息的时频资源为第二时频资源，则网络设备确定该同步信号对应的序列为第二序列；
该第一时频资源的频域位置与承载该同步信号的时频资源的频域位置相同，或该第一时频资源的频域位置包括承载该同步信号的时频资源的频域位置；
该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置相邻；或该第二时频资源的频域位置与承载该同步信号的时频资源的频域位置间隔固定的频率偏移。
可选的，该第一时频资源的起始符号，与承载该同步信号的最后一个符号相邻；或该第一时频资源的起始符号为承载该同步信号的最后一个符号的下一个符号；或若承载该同步信号的最后一个符号为符号l，则该第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
该第二时频资源的符号与承载该同步信号的符号相同；或该第二时频资源的起始符号，与承载该同步信号包括的主同步信号的起始符号相同。
可替代地，如上所述的S802中网络设备根据该承载***信息的时频资源确定该同步信号对应的序列，包括：
若该承载***信息的时频资源为第一时频资源，则网络设备确定该同步信号对应的序列为第一序列；
若该承载***信息的时频资源为第二时频资源，则网络设备确定该同步信号对应的序列为第二序列；
该第一时频资源与承载该同步信号的时频资源时分复用，该第二时频资源与承载该同步信号的时频资源频分复用。
可选的，第一序列由两个31长序列按照第一组合方式生成，该第二序列由该两个31长序列按照第二组合方式生成，该第一组合方式与该第二组合方式不同
该信息传输方法中，网络设备可确定承载***信息的时频资源，并根据承载***信息的时频 资源确定该同步信号对应的序列，承载***信息的不同时频资源可对应不同的应用场景，可使得同步信号对应的不同序列对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
本申请实施例四还提供一种终端。图9为本申请实施例四提供的一种终端的结构示意图。如图9所示，终端900可包括：接收单元901和处理单元902。接收单元901可由终端900的接收器执行。
处理单元902例如可以由终端900的处理器通过软件和/或软件的方式执行。
终端900的处理器，可以为中央处理器(Central Processing Unit，CPU)。处理器还可以为其他通用处理器、数字信号处理器(Digital Signal Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
接收器可以为接收接口电路，用于信号的接收；另外，接收器可通过无线通信与其他网络网络和/或终端进行通信。
处理单元902，可用于执行上述实施例的信息传输传输方法中的S103以确定同步信号对应的子载波间隔，同步信号对应的子载波间隔为承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔，并执行S104以根据同步信号对应的子载波间隔和该接收到的网络设备发送的信息检测同步信号。
可选的，承载同步信号的符号对应的循环前缀，为同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
可选的，处理单元902，还用于执行如上所述的信息传输方法中的S201根据同步信号对应的序列确定承载***信息的时频资源。
可选的，处理单元902，具体用于若同步信号对应的序列为第一序列，则确定承载***信息的时频资源为第一时频资源；若同步信号对应的序列为第二序列，则确定承载***信息的时频资源为第二时频资源；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源对应的频域位置包括承载同步信号的时频资源对应的频域位置；第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源对应的频域位置与承载同步信号的时频资源对应的频域位置间隔固定的频率偏移。
可选的，如上所述的第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)modL，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载所述同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
可选的，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
可选的，如上所述的方法中，第一序列由两个31长序列按照第一组合方式生成；第二序列由两个31长序列按照第二组合方式生成；第一组合方式与第二组合方式不同。
可选的，如上所述的方法中，该***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号的时域偏移。
可选的，如上所述的方法中，***信息对应的扰码用于指示承载***信息的子帧。
可选的，如上所述的方法中，同步信号为辅同步信号。
本申请实施例四提供的终端，可通过确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，继而根据该同步信号对应的子载波间隔检测同步信号。服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
本申请实施例五还提供一种终端。图10为本申请实施例五提供的一种终端的结构示意图。如图10所示，该终端1000可包括：处理器1001和接收器1002。可选的，该处理器1001可实现实施例四中处理单元902的功能，接收器1002可实现实施例四中接收单元901的功能。
可选的，终端1000还可以包括存储器1003，存储器1003可以用于存储处理器1001执行时的代码等。
终端1000的处理器，可以为CPU。处理器1001还可以为其他通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
本申请实施例五的终端，可执行上述图1、图2和图7中任一所述的终端执行的信息传输方法，其有益效果与上述实施例类似，在此不再赘述。
本申请实施例六还提供一种网络设备。图11为本申请实施例六提供的一种网络设备的结构示意图。如图11所示，网络设备1100可包括：处理单元1101和发送单元1102。
处理单元1101例如可以由网络设备1100的处理器通过软件和/或软件的方式执行，发送单元1102可由网络设备1100的发送器执行。
其中，处理器可以为CPU。处理器还可以为其他通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
发送器可以为发送接口电路，用于信号的发送；另外，发送器可通过无线通信与其他网络网络和/或终端进行通信。
处理单元1101，用于执行上述实施例所述的信息传输方法中的S101确定同步信号对应的子载波间隔，同步信号对应的子载波间隔为承载同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔。
发送单元1102，用于执行上述实施例所述的信息传输方法中S102根据同步信号对应的子载波间隔发送同步信号。
可选的，处理单元1101，还用于执行上述实施例所述的信息传输方法中的S501根据同步信号对应的子载波间隔，确定子载波间隔对应的循环前缀集合；执行上述实施例所述的信息传输方法中S502根据循环前缀集合，确定承载同步信号的符号对应的循环前缀为循环前缀集合中最长的循环前缀。
可选的，发送单元1102，具体用于执行上述实施例所述的信息传输方法中S503根据同步信号对应的子载波间隔和承载同步信号的符号对应的循环前缀发送同步信号。
可选的，处理单元1101，还用于执行上述实施例所述的信息传输方法中的S601确定承载***信息的时频资源；执行上述实施例所述的信息传输方法中的S602根据承载***信息的时频资源确定同步信号对应的序列。
可替代地，处理单元1101，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源的频域位置与承载同步信号的时频资源的频域位置相同，或第一时频资源的频域位置包括承载同步信号的时频资源的频域位置；
第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻；或第二时频资源的频域位置与承载同步信号的时频资源的频域位置间隔固定的频率偏移。
可选的，第一时频资源的起始符号，与承载同步信号的最后一个符号相邻；或，
第一时频资源的起始符号为承载所述同步信号的最后一个符号的下一个符号；或，
若承载同步信号的最后一个符号为符号l，则第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
第二时频资源的符号与承载同步信号的符号相同；或，第二时频资源的起始符号，与承载同步信号包括的主同步信号的起始符号相同。
可选的，第二时频资源的频域位置与承载同步信号的时频资源的频域位置相邻，且分布在承载同步信号的时频资源的频域位置的两边。
可选的，处理单元1101，具体用于若承载***信息的时频资源为第一时频资源，则确定同步信号对应的序列为第一序列；若承载***信息的时频资源为第二时频资源，则确定同步信号对应的序列为第二序列；
其中，第一时频资源与承载同步信号的时频资源时分复用，第二时频资源与承载同步信号的时频资源频分复用。
可选的，第一序列由两个31长序列按照第一组合方式生成，第二序列由两个31长序列按照第二组合方式生成，第一组合方式与第二组合方式不同。
可选的，***信息包括符号位置指示域；
其中，符号位置指示域用于指示承载同步信号的起始符号的位置；或，
符号位置指示域用于指示承载同步信号的起始符号的索引；或，
符号位置指示域用于指示承载同步信号的起始符号与承载同步信号的子帧的第一个符号的时域偏移；或，
位置指示域用于指示承载主同步信号的起始符号的位置；或，
符号位置指示域用于指示承载主同步信号的起始符号的索引；或，
符号位置指示域用于指示承载主同步信号的起始符号与承载主同步信号的子帧的第一个符号 的时域偏移。
可选的，***信息对应的扰码用于指示承载所述***信息的子帧。
可选的，同步信号为辅同步信号。
本申请实施例六提供的网络设备，可确定承载该同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔为同步信号对应的子载波间隔，并根据该同步信号对应的子载波间隔发送该同步信号发送该同步信号。服务小区对应的子载波间隔集合中的不同子载波间隔可对应不同的应用场景，从而可使得包括终端与网络设备间的信息传输方法，灵活应用于不同的应用场景。
本申请实施例七还提供一种网络设备。图12为本申请实施例七提供的一种网络设备的结构示意图。如图12所示，该网络设备1200可包括处理器1201和发送器1202。可选的，该处理器1201可实现实施例六中处理单元1101的功能，发送器1202可实现实施例六中发送单元1102的功能。
可选的，网络设备1200还可以包括存储器1203，存储器1203可以用于存储处理器1201执行时的代码等。
网络设备1200的处理器1201，可以为CPU。处理器1201还可以为其他通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
本申请实施例七的终端，可执行上述图1、图5、图6和图8中任一所述的网络设备执行的信息传输方法，其有益效果与上述实施例类似，在此不再赘述。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。

Claims (45)

  1. 一种信息传输方法，其特征在于，包括：
    终端确定同步信号对应的子载波间隔，所述同步信号对应的子载波间隔为承载所述同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔；
    所述终端根据所述同步信号对应的子载波间隔检测所述同步信号。
  2. 根据权利要求1所述的方法，其特征在于，承载所述同步信号的符号对应的循环前缀，为所述同步信号对应的子载波间隔对应的循环前缀中最长的循环前缀。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端根据所述同步信号对应的序列确定承载***信息的时频资源。
  4. 根据权利要求3所述的方法，其特征在于，所述终端根据所述同步信号对应的序列确定承载***信息的时频资源，包括：
    若所述同步信号对应的序列为第一序列，则所述终端确定所述承载***信息的时频资源为第一时频资源；
    若所述同步信号对应的序列为第二序列，则所述终端确定所述承载***信息的时频资源为第二时频资源；
    所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源对应的频域位置包括承载所述同步信号的时频资源对应的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源对应的频域位置与承载所述同步信号的时频资源对应的频域位置间隔固定的频率偏移。
  5. 根据权利要求4所述的方法，其特征在于，
    所述第一时频资源的起始符号，与承载所述同步信号的最后一个符号相邻；或所述第一时频资源的起始符号为承载所述同步信号的最后一个符号的下一个符号；或若承载所述同步信号的最后一个符号为符号l，则所述第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
    所述第二时频资源的符号与承载所述同步信号的符号相同；或所述第二时频资源的起始符号，与承载所述同步信号包括的主同步信号的起始符号相同。
  6. 根据权利要求4或5所述的方法，其特征在于，所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻，包括：
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻，且分布在承载所述同步信号的时频资源的频域位置的两边。
  7. 根据权利要求4-6中任一项所述的方法，其特征在于，所述第一序列由两个31长序列按照第一组合方式生成；所述第二序列由所述两个31长序列按照第二组合方式生成；所述第一组合方式与所述第二组合方式不同。
  8. 根据权利要求3-7中任一项所述的方法，其特征在于，
    所述***信息包括符号位置指示域；
    其中，所述符号位置指示域用于指示承载所述同步信号的起始符号的位置；或所述符号位置指示域用于指示承载所述同步信号的起始符号的索引；或所述符号位置指示域用于指示承载所述同步信号的起始符号与承载所述同步信号的子帧的第一个符号的时域偏移；或所述位置指示域用于指示承载主同步信号的起始符号的位置；或所述符号位置指示域用于指示承载主同步信号的起 始符号的索引；或所述符号位置指示域用于指示承载主同步信号的起始符号与承载所述主同步信号的子帧的第一个符号的时域偏移。
  9. 根据权利要求3-8中任一项所述的方法，其特征在于，所述***信息对应的扰码用于指示承载所述***信息的子帧。
  10. 根据权利要求1-9中任一项所述的方法，其特征在于，所述同步信号为辅同步信号。
  11. 一种信息传输方法，其特征在于，包括：
    终端确定同步信号对应的序列；
    所述终端根据所述同步信号对应的序列确定承载***信息的时频资源。
  12. 根据权利要求11所述的方法，其特征在于，所述终端根据所述同步信号对应的序列确定承载***信息的时频资源包括：
    若所述同步信号对应的序列为第一序列，则所述终端确定所述承载***信息的时频资源为第一时频资源；
    若所述同步信号对应的序列为第二序列，则所述终端确定所述承载***信息的时频资源为第二时频资源；
    所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源对应的频域位置包括承载所述同步信号的时频资源对应的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源对应的频域位置与承载所述同步信号的时频资源对应的频域位置间隔固定的频率偏移。
  13. 根据权利要求12所述的方法，其特征在于，
    所述第一时频资源的起始符号，与承载所述同步信号的最后一个符号相邻；或所述第一时频资源的起始符号为承载所述同步信号的最后一个符号的下一个符号；或若承载所述同步信号的最后一个符号为符号l，则所述第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
    所述第二时频资源的符号与承载所述同步信号的符号相同；或所述第二时频资源的起始符号，与承载所述同步信号包括的主同步信号的起始符号相同。
  14. 根据权利要求11-13中任一项所述的方法，其特征在于，所述第一序列由两个31长序列按照第一组合方式生成；所述第二序列由所述两个31长序列按照第二组合方式生成；所述第一组合方式与所述第二组合方式不同。
  15. 一种信息传输方法，其特征在于，包括：
    网络设备确定同步信号对应的子载波间隔，所述同步信号对应的子载波间隔为承载所述同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔；
    所述网络设备根据所述同步信号对应的子载波间隔发送所述同步信号。
  16. 根据权利要求15所述的方法，其特征在于，所述网络设备根据所述同步信号对应的子载波间隔发送所述同步信号之前，所述方法还包括：
    所述网络设备根据所述同步信号对应的子载波间隔，确定所述子载波间隔对应的循环前缀集合；
    所述网络设备根据所述循环前缀集合，确定承载所述同步信号的符号对应的循环前缀为所述循环前缀集合中最长的循环前缀。
  17. 根据权利要求16所述的方法，其特征在于，所述网络设备根据所述同步信号对应的子载 波间隔发送所述同步信号，包括：
    所述网络设备根据所述同步信号对应的子载波间隔和承载所述同步信号的符号对应的循环前缀发送所述同步信号。
  18. 根据权利要求15-17中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备确定承载***信息的时频资源；
    所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列。
  19. 根据权利要求18所述的方法，其特征在于，所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列，包括：
    若所述承载***信息的时频资源为第一时频资源，则所述网络设备确定所述同步信号对应的序列为第一序列；
    若所述承载***信息的时频资源为第二时频资源，则所述网络设备确定所述同步信号对应的序列为第二序列；
    所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源的频域位置包括承载所述同步信号的时频资源的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置间隔固定的频率偏移。
  20. 根据权利要求19所述的方法，其特征在于，
    所述第一时频资源的起始符号，与承载所述同步信号的最后一个符号相邻；或所述第一时频资源的起始符号为承载所述同步信号的最后一个符号的下一个符号；或若承载所述同步信号的最后一个符号为符号l，则所述第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
    所述第二时频资源的符号与承载所述同步信号的符号相同；或所述第二时频资源的起始符号，与承载所述同步信号包括的主同步信号的起始符号相同。
  21. 根据权利要求19或20所述的方法，其特征在于，所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻，包括：
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻，且分布在承载所述同步信号的时频资源的频域位置的两边。
  22. 根据权利要求18所述的方法，其特征在于，所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列，包括：
    若所述承载***信息的时频资源为第一时频资源，则所述网络设备确定所述同步信号对应的序列为第一序列；
    若所述承载***信息的时频资源为第二时频资源，则所述网络设备确定所述同步信号对应的序列为第二序列；
    所述第一时频资源与承载所述同步信号的时频资源时分复用，所述第二时频资源与承载所述同步信号的时频资源频分复用。
  23. 根据权利要求19或22所述的方法，其特征在于，所述第一序列由两个31长序列按照第一组合方式生成，所述第二序列由所述两个31长序列按照第二组合方式生成，所述第一组合方式与所述第二组合方式不同。
  24. 根据权利要求18-23中任一项所述的方法，其特征在于，
    所述***信息包括符号位置指示域；
    其中，所述符号位置指示域用于指示承载所述同步信号的起始符号的位置；或所述符号位置指示域用于指示承载所述同步信号的起始符号的索引；或所述符号位置指示域用于指示承载所述同步信号的起始符号与承载所述同步信号的子帧的第一个符号的时域偏移；或所述位置指示域用于指示承载主同步信号的起始符号的位置；或所述符号位置指示域用于指示承载主同步信号的起始符号的索引；或所述符号位置指示域用于指示承载主同步信号的起始符号与承载所述主同步信号的子帧的第一个符号的时域偏移。
  25. 根据权利要求18-24中任一项所述的方法，其特征在于，所述***信息对应的扰码用于指示承载所述***信息的子帧。
  26. 根据权利要求15-25中任一项所述的方法，其特征在于，所述同步信号为辅同步信号。
  27. 一种信息传输方法，其特征在于，包括：
    网络设备确定承载***信息的时频资源；
    所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列。
  28. 根据权利要求27所述的方法，其特征在于，所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列，包括：
    若所述承载***信息的时频资源为第一时频资源，则所述网络设备确定所述同步信号对应的序列为第一序列；
    若所述承载***信息的时频资源为第二时频资源，则所述网络设备确定所述同步信号对应的序列为第二序列；
    所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源的频域位置包括承载所述同步信号的时频资源的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置间隔固定的频率偏移。
  29. 根据权利要求28所述的方法，其特征在于，
    所述第一时频资源的起始符号，与承载所述同步信号的最后一个符号相邻；或所述第一时频资源的起始符号为承载所述同步信号的最后一个符号的下一个符号；或若承载所述同步信号的最后一个符号为符号l，则所述第一时频资源的起始符号为符号(l+1)或为符号(l+1)mod L，其中l＝0，1，…L-1，L为正整数；
    所述第二时频资源的符号与承载所述同步信号的符号相同；或所述第二时频资源的起始符号，与承载所述同步信号包括的主同步信号的起始符号相同。
  30. 根据权利要求27所述的方法，其特征在于，所述网络设备根据所述承载***信息的时频资源确定所述同步信号对应的序列，包括：
    若所述承载***信息的时频资源为第一时频资源，则所述网络设备确定所述同步信号对应的序列为第一序列；
    若所述承载***信息的时频资源为第二时频资源，则所述网络设备确定所述同步信号对应的序列为第二序列；
    所述第一时频资源与承载所述同步信号的时频资源时分复用，所述第二时频资源与承载所述同步信号的时频资源频分复用。
  31. 根据权利要求28或30所述的方法，其特征在于，所述第一序列由两个31长序列按照第 一组合方式生成，所述第二序列由所述两个31长序列按照第二组合方式生成，所述第一组合方式与所述第二组合方式不同。
  32. 一种终端，其特征在于，包括：
    接收单元，用于接收网络设备发送的信息；
    处理单元，用于确定同步信号对应的子载波间隔，所述同步信号对应的子载波间隔为承载所述同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔，并根据所述同步信号对应的子载波间隔和所述接收到的网络设备发送的信息检测所述同步信号。
  33. 根据权利要求32所述的终端，其特征在于，
    所述处理单元，还用于根据所述同步信号对应的序列确定承载***信息的时频资源。
  34. 根据权利要求33所述的终端，其特征在于，
    所述处理单元，具体用于若所述同步信号对应的序列为第一序列，则确定所述承载***信息的时频资源为第一时频资源；若所述同步信号对应的序列为第二序列，则确定所述承载***信息的时频资源为第二时频资源；
    其中，所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源对应的频域位置包括承载所述同步信号的时频资源对应的频域位置；所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源对应的频域位置与承载所述同步信号的时频资源对应的频域位置间隔固定的频率偏移。
  35. 一种终端，其特征在于，包括：
    接收单元，用于接收网络设备发送的同步信号；
    处理单元，用于根据所述接收到的网络设备发送的同步信号确定所述同步信号对应的序列，并根据所述同步信号对应的序列确定承载***信息的时频资源。
  36. 根据权利要求35所述的终端，其特征在于，
    所述处理单元，具体用于若所述同步信号对应的序列为第一序列，则确定所述承载***信息的时频资源为第一时频资源；若所述同步信号对应的序列为第二序列，则确定所述承载***信息的时频资源为第二时频资源；
    其中，所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源对应的频域位置包括承载所述同步信号的时频资源对应的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源对应的频域位置与承载所述同步信号的时频资源对应的频域位置间隔固定的频率偏移。
  37. 一种网络设备，其特征在于，包括：
    处理单元，用于确定同步信号对应的子载波间隔，所述同步信号对应的子载波间隔为承载所述同步信号的服务小区对应的子载波间隔集合中最大的子载波间隔；
    发送单元，用于根据所述同步信号对应的子载波间隔发送所述同步信号。
  38. 根据权利要求37所述的网络设备，其特征在于，
    所述处理单元，还用于根据所述同步信号对应的子载波间隔，确定所述子载波间隔对应的循环前缀集合；根据所述循环前缀集合，确定承载所述同步信号的符号对应的循环前缀为所述循环前缀集合中最长的循环前缀。
  39. 根据权利要求38所述的网络设备，其特征在于，
    所述发送单元，具体用于根据所述同步信号对应的子载波间隔和承载所述同步信号的符号对 应的循环前缀发送所述同步信号。
  40. 根据权利要求37-39中任一项所述的网络设备，其特征在于，
    所述处理单元，还用于确定承载***信息的时频资源；根据所述承载***信息的时频资源确定所述同步信号对应的序列。
  41. 根据权利要求40所述的网络设备，其特征在于，
    所述处理单元，具体用于若所述承载***信息的时频资源为第一时频资源，则确定所述同步信号对应的序列为第一序列；若所述承载***信息的时频资源为第二时频资源，则确定所述同步信号对应的序列为第二序列；
    其中，所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源的频域位置包括承载所述同步信号的时频资源的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置间隔固定的频率偏移。
  42. 根据权利要求40所述的网络设备，其特征在于，
    所述处理单元，具体用于若所述承载***信息的时频资源为第一时频资源，则确定所述同步信号对应的序列为第一序列；若所述承载***信息的时频资源为第二时频资源，则确定所述同步信号对应的序列为第二序列；
    其中，所述第一时频资源与承载所述同步信号的时频资源时分复用，所述第二时频资源与承载所述同步信号的时频资源频分复用。
  43. 一种网络设备，其特征在于，包括：
    处理单元，用于确定承载***信息的时频资源；根据所述承载***信息的时频资源确定所述同步信号对应的序列；
    发送单元，用于发送所述同步信号。
  44. 根据权利要求43所述的网络设备，其特征在于，
    所述处理单元，具体用于若所述承载***信息的时频资源为第一时频资源，则确定所述同步信号对应的序列为第一序列；若所述承载***信息的时频资源为第二时频资源，则确定所述同步信号对应的序列为第二序列；
    其中，所述第一时频资源的频域位置与承载所述同步信号的时频资源的频域位置相同，或所述第一时频资源的频域位置包括承载所述同步信号的时频资源的频域位置；
    所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置相邻；或所述第二时频资源的频域位置与承载所述同步信号的时频资源的频域位置间隔固定的频率偏移。
  45. 根据权利要求43所述的网络设备，其特征在于，
    所述处理单元，具体用于若所述承载***信息的时频资源为第一时频资源，则确定所述同步信号对应的序列为第一序列；若所述承载***信息的时频资源为第二时频资源，则确定所述同步信号对应的序列为第二序列；
    其中，所述第一时频资源与承载所述同步信号的时频资源时分复用，所述第二时频资源与承载所述同步信号的时频资源频分复用。
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