WO2019192536A1 - 信号信道的发送方法以及基站、存储介质、电子装置 - Google Patents

信号信道的发送方法以及基站、存储介质、电子装置 Download PDF

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Publication number
WO2019192536A1
WO2019192536A1 PCT/CN2019/081322 CN2019081322W WO2019192536A1 WO 2019192536 A1 WO2019192536 A1 WO 2019192536A1 CN 2019081322 W CN2019081322 W CN 2019081322W WO 2019192536 A1 WO2019192536 A1 WO 2019192536A1
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Prior art keywords
ssb
csi
coreset
signal channel
pdsch
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PCT/CN2019/081322
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English (en)
French (fr)
Inventor
徐汉青
赵亚军
杨玲
李新彩
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to KR1020207031719A priority Critical patent/KR102540529B1/ko
Priority to CA3095950A priority patent/CA3095950A1/en
Priority to RU2020136007A priority patent/RU2747886C1/ru
Priority to MX2020010447A priority patent/MX2020010447A/es
Priority to EP19781662.2A priority patent/EP3780699B1/en
Publication of WO2019192536A1 publication Critical patent/WO2019192536A1/zh
Priority to US17/061,694 priority patent/US11706697B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present application relates to the field of communications, for example, to a method for transmitting a signal channel, a base station, and a storage medium and an electronic device.
  • New Radio faces many problems when utilizing an unlicensed carrier.
  • NR New Radio
  • NR also called Clear Channel Assessment (CCA)
  • CCA Clear Channel Assessment
  • SS/PBCH Synchronization Signal/Physical Broadcast Channel
  • SS/PBCH block SS/PBCH block, SSB
  • PSS/SSS Primary Synchronization Signal/Secondary Synchronization Signal
  • SSS in SSS is used for L3 radio resource management in Idle/Inactive/Connected state.
  • L3Radio Resource Management, L3RRM can also be used for L1 Reference Signal Received Power (L1-RSRP) measurement for beam management; in addition, the SSB also includes a physical broadcast channel (Physical Broadcast) Channel, PBCH), which carries the Master Information Block (MIB).
  • PBCH Physical Broadcast Channel
  • NR can also define a new discovery signal (DRS) based on NR signals and channels. Used for cell search, synchronization and measurement functions.
  • DRS new discovery signal
  • the embodiment of the present application provides a method for transmitting a signal channel, and a base station, a storage medium, and an electronic device.
  • a method of transmitting a signal comprising: configuring a signal channel, wherein the signal channel is used for cell search, synchronization, and measurement; and transmitting the signal channel to a terminal.
  • a base station including: a configuration module configured to configure a signal channel, wherein the signal channel is used for cell search, synchronization, and measurement; and a sending module is configured to The signal channel is sent to the terminal.
  • a storage medium having stored therein a computer program, wherein the computer program is configured to execute the steps of any one of the method embodiments described above.
  • an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being configured to run the computer program to perform any of the above The steps in the method embodiments.
  • FIG. 1 is a network architecture diagram of an embodiment of the present application.
  • FIG. 2 is a flowchart of a method for transmitting a signal channel according to an embodiment of the present application
  • FIG. 3 is a structural block diagram of a base station according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an SSB in an embodiment of the present application.
  • FIG. 5 is a multiplexing manner 1 of a DRS according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of transmitting a discovery signal or an SS/PBCH block in a window according to an embodiment of the present application.
  • FIG. 1 is a network architecture diagram of an embodiment of the present application.
  • the network architecture includes: a base station and a terminal, where the base station and the terminal are Interactive information.
  • FIG. 2 is a flowchart of a method for transmitting a signal channel according to an embodiment of the present application. As shown in FIG. 2, the process includes the following steps: Step S202 and step S204.
  • step S202 a signal channel is configured.
  • the signal channel is used for cell search, synchronization, and measurement (one or more operations in cell search, cell synchronization, and cell measurement).
  • step S204 the signal channel is transmitted to the terminal.
  • the transmission opportunity of the SSB or the discovery signal in the unlicensed carrier scenario can be effectively improved, thereby ensuring functions such as cell search, synchronization, or measurement, and the technical problem that the discovery signal cannot be sent unfairly in the related art is solved, and the entire network is improved. Work efficiency.
  • the execution body of the foregoing steps may be a network side, such as a base station, etc., but is not limited thereto.
  • the channel signal may be a channel, a signal, or both a channel and a signal.
  • the signal channel comprises at least one of: a synchronization signal physical broadcast channel block SSB, a discovery signal DRS.
  • the DRS includes: a synchronization signal physical broadcast channel block SSB, and at least one of the following: a Control Resource Set (CORESET), a Physical Downlink Shared Channel (PDSCH), and a channel state information reference.
  • CORESET Control Resource Set
  • PDSCH Physical Downlink Shared Channel
  • CSI-RS Channel-State Information Reference Signal
  • PTRS Phase-tracking Reference Signal
  • SRS Sounding Reference Signal
  • paging message Paging paging message Paging.
  • the manner of configuring the DRS includes the following examples:
  • the DRS includes: an SSB and a CSI-RS; wherein the SSB and the CSI-RS occupy different Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the OFDM symbols occupied by the SSB and the CSI-RS are consecutive in the time domain. Or, discontinuous; or, the CSI-RS is transmitted on the OFDM symbol occupied by the SSB, and the CSI-RS is not configured or sent on the frequency domain resource occupied by the SSB component signal channel.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the configuration DRS includes: SSB and CORESET/PDSCH (wherein CORESET/PDSCH includes at least one of: CORESET, and PDSCH); wherein SSB and CORESET/PDSCH are multiplexed in time domain, and OFDM symbols occupied by SSB and CORESET/PDSCH are in Continuous in the time domain, or discontinuous; or, SSB and CORESET/PDSCH are multiplexed in the frequency domain.
  • the configuration DRS includes: SSB, CORESET/PDSCH, and CSI-RS; wherein, the SSB, the CORESET/PDSCH, and the CSI-RS are configured in at least one of the following:
  • the SSB and the CORESET/PDSCH are multiplexed in the time domain, and the CSI-RS is frequency-division multiplexed with the CORESET/PDSCH.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the CORESET/PDSCH, and the CSI-RS is not configured on the frequency domain resource occupied by the CORESET. Or not; or, SSB and CORESET/PDSCH are multiplexed in the time domain, CSI-RS is frequency-division multiplexed with SSB, CSI-RS is transmitted on the OFDM symbol occupied by the SSB, and the frequency occupied by the CSI-RS in the SSB is composed of the signal channel.
  • SSB, CORESET/PDSCH, and CSI-RS are multiplexed in the time domain.
  • OFDM symbols occupied by SSB, CORESET/PDSCH, and CSI-RS are consecutive or discontinuous in the time domain, or OFDM symbols occupied by any two or more signal channels are consecutive; or, SSB and CORESET/PDSCH are in the frequency domain Multiplexing, using a second multiplexing pattern (the first multiplexing pattern is the above: SSB and CORESET/PDSCH are time domain multiplexed), wherein the second multiplexing pattern has SSB and CORESET in different OFDM symbols, CSI-RS Frequency division multiplexing with CORESET, the CSI-RS is transmitted on the OFDM symbol occupied by CORESET.
  • the CSI-RS is not configured or transmitted on the frequency domain resources occupied by the CORESET; or, the SSB and the CORESET/PDSCH are multiplexed in the frequency domain, and the second multiplexing pattern is adopted, and the CSI-RS and the SSB are frequency-division multiplexed.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB.
  • the CSI-RS does not configure or not transmit the frequency domain resources occupied by the SSB component signal channel; or, the SSB and the CORESET/PDSCH are multiplexed in the frequency domain, and the second multiplexing pattern is adopted, and the CSI-RS and the SSB or the CORESET/PDSCH are time-divided.
  • the CSI-RS and the SSB or the CORESET/PDSCH occupy different OFDM symbols, and the OFDM symbols occupied by the CSI-RS and the SSB or the CORESET/PDSCH are consecutive or discontinuous in the time domain; or, the SSB and the CORESET/PDSCH are in the frequency domain.
  • the third multiplexing pattern is adopted, wherein the CORESET and the SSB are in the same OFDM symbol in the third multiplexing pattern, and the CSI-RS is frequency-multiplexed with the SSB or the CORESET.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB or CORESET.
  • the CSI-RS is not configured or sent on the frequency domain resources occupied by the SSB or CORESET; or, the SSB and the CORESET/PDSCH are multiplexed in the frequency domain, and the third multiplexing pattern is adopted, and the CSI-RS and the SSB or the CORESET are divided.
  • the CSI-RS occupies different OFDM symbols from the SSB or the CORESET, and the OFDM symbols occupied by the CSI-RS and the SSB or the CORESET are consecutive or discontinuous in the time domain.
  • transmitting the signal channel to the terminal comprises at least one of: transmitting the signal channel to the terminal in the frequency domain; and transmitting the signal channel to the terminal in the time domain.
  • transmitting the signal channel to the terminal in the frequency domain comprises at least one of: transmitting the signal channel to the terminal in the frequency domain; and transmitting the signal channel to the terminal in the time domain.
  • Transmitting the signal channel to the terminal in the frequency domain includes at least one of: transmitting a signal channel in a frequency domain, and transmitting an occupied signal on a blank resource in a frequency domain; transmitting at least one of: at least one signal channel in a frequency domain And at least one CORESET/PDSCH; transmitting the signal channel in the frequency domain, and the CSI-RS, prohibiting the transmission or prohibiting the configuration of the CSI-RS on the frequency domain resource occupied by the signal channel component signal channel; using the interval greater than the preset subcarrier spacing
  • the subcarrier spacing transmits a signal channel in the frequency domain to form a signal channel; wherein if the carrier frequency is less than or equal to 6 GHz, the preset subcarrier spacing is 15 kHz, and if the carrier frequency is greater than or equal to 6 GHz, the preset subcarrier spacing is 60 kHz;
  • the time window period of the preset time transmits the DRS in the frequency domain, wherein the preset time is 5 ms.
  • Transmitting the signal channel to the terminal in the time domain includes at least one of: transmitting a signal channel on the time domain using a subcarrier spacing greater than a preset subcarrier interval to form a signal channel; wherein, if the carrier frequency is less than or equal to 6 GHz, the preset The subcarrier spacing is 15 kHz.
  • the preset subcarrier spacing is 60 kHz; the signal channel is configured to transmit the signal channel in the time domain using a time window period greater than the preset time, wherein the preset time is 5 ms; using the first time window and The second time window sends the signal channel to the terminal in the time domain, or uses the time window to configure two periods to transmit the signal channel component signal channel to the terminal in the time domain; and uses the time window to transmit the signal channel in the time domain.
  • the signal channel is composed, wherein a plurality of time windows are included in one cycle; and a plurality of candidate signal channels are simultaneously transmitted in the time domain at a position of an alternate signal channel, and the numbers of the plurality of candidate signals may be the same or different.
  • transmitting the signal channel to the terminal by using the first time window and the second time window includes one of: transmitting the signal channel to the terminal by using the first time window, and when the signal channel fails in the first time window, Transmitting the signal channel to the terminal by using the second time window, and/or, when the first time window sends the signal channel successfully, continuing to use the first time window; transmitting the signal channel to the terminal by using the first time window or the second time window And setting a next time window of the current sending window to a current time window plus a period of the first time window when at least one of the first time window and the second time window is successfully sent; in the first time window When at least one of the second time windows fails to transmit a signal channel, the second time window is used to transmit the signal channel to the terminal.
  • the alternate location of each SSB is the alternate location of the DRS (the location of the alternate DRS), the sequence number of the DRS is the same as the sequence number of the SSB", where the signal channel is Before transmitting to the terminal within the time window, the method includes determining a specified time window for transmitting the signal channel.
  • the specified time window for transmitting the signal channel includes at least one of the following:
  • the specified time window is equal to the original time window, or is obtained by expanding the length of the original time window, wherein the original time window is half a frame length of 5 ms;
  • a signal channel can be transmitted at an alternate location of any one of the signal channels of the specified time window
  • the time unit comprises any one of: a frame, or a subframe, or a time slot, or an OFDM symbol;
  • a new candidate SSB is defined on the time unit in which the candidate SSB is not defined within the specified time window.
  • the time unit includes any one of the following: a frame, or a subframe, or a time slot, or an OFDM symbol;
  • the second location after the first location is set as an alternate location for transmitting the DRS.
  • the SSB number of the newly added candidate SSB is numbered by one of the following rules: then the maximum number of the current candidate SSB is consecutively numbered; Select the SSB number; determine the number from the association relationship of the SSB to be sent; then the number of the first position is consecutively numbered; the number is the same as the number of the first position, and the number is the same as the pre-configuration number.
  • the contention channel fails, and the contention channel is successfully succeeded at the other candidate SSB j position, and the sent SSB is numbered by one of the following rules: the same as the original number, using the number of the SSB j; Different from the original number, the number of SSB i is used; if two SSBs are sent simultaneously in the alternate SSB j position, the number of SSB i and the number of SSB j are used respectively.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present application which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present application.
  • a base station is also provided in the embodiment to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of at least one of software and hardware for a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a structural block diagram of a base station according to an embodiment of the present application. As shown in FIG. 3, the configuration includes a configuration module 30 and a sending module 32.
  • the configuration module 30 is configured to configure a signal channel, wherein the signal channel is used for cell search, synchronization, and measurement.
  • the sending module 32 is configured to send the signal channel to the terminal.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • This embodiment considers the SS/PBCH block (synchronization/broadcast channel block, SSB for short) and/or the transmission of the discovery signal in the unlicensed carrier scenario, and improves the SS/PBCH block and/or on the premise of ensuring fairness. Discover the opportunity to send a signal.
  • SS/PBCH block synchronization/broadcast channel block, SSB for short
  • This embodiment provides a pattern design and/or transmission scheme for a signal or channel in an unlicensed carrier, wherein the signal or channel includes an SSB, or a discovery signal.
  • the composition of the discovery signal includes the SSB, and other one or more signals or channels.
  • the SSB and discovery signals are mainly used for functions such as cell search, time-frequency synchronization, and measurement.
  • the SS/PBCH block in this embodiment corresponds to the SS/PBCH block defined in 3GPP TS 38.211/213-f00.
  • the SSB mainly includes PSS, SSS, PBCH and related DMRS, occupying 4 OFDM symbols in the time domain and occupying 240 Resource Elements (RE) in the frequency domain.
  • the above signal channel is a constituent signal of the SSB.
  • 4 is a schematic structural diagram of an SSB in an embodiment of the present application.
  • This embodiment further includes the following first embodiment to sixth embodiment.
  • the signal composition of the signal is found.
  • the discovery signal includes at least the SSB, and also includes one or more of the following signal channels: CORESET and PDSCH, CSI-RS, PTRS, SRS, Paging.
  • the above signal channel is a constituent signal of the discovery signal DRS.
  • some signal channels can be optionally configured.
  • the CSI-RS can be used as an optional configuration signal for the discovery signal.
  • the PBCH carries the Master Information Block (MIB).
  • the PDSCH here carries some remaining other system information, such as at least one of System Information Block 1 (SIB1) and other system information (such as an operator identification number (ID)).
  • SIB1 System Information Block 1
  • ID operator identification number
  • the discovery signal includes the PDSCH, it also needs to include a Demodulation Reference Signal (DMRS) for demodulating the PDSCH.
  • DMRS Demodulation Reference Signal
  • CORESET is used to send control information related to PDSCH transmission.
  • the CSI-RS is used for at least one of the following operations: measurement node identification and transmission node identification.
  • PTRS is used for phase tracking.
  • the SRS is used for uplink channel measurement, and the measurement result can be used for both uplink scheduling and downlink transmission.
  • Paging is used to send paging information.
  • the standard can be used to standardize the transmission of these signal channels without discovering the terminology of the signal, or to find that the signal is only one or more of the above signal channels, and some of the other signal channels are not the discovery signal.
  • the standard only normalizes the transmission of SSB and CORESET/PDSCH, and CSI-RS in unlicensed carriers, but does not collectively refer to these signals as discovery signals; or, the standard only standardizes SSB and CORESET/PDSCH to form discovery signals,
  • the CSI-RS is not a discovery signal. It is only used as an independent signal and is studied how it is sent with the discovery signal. The method of the present application for discovering signals or SSBs is equally applicable to these situations.
  • each SSB within each half frame window is the alternate location of the DRS (or the location of the alternate DRS), and the serial number of the DRS is the same as the serial number of the SSB.
  • the design of the new alternative SSB is also applicable to the DRS, such as the location of the new alternative SSB, or the number of the SSB.
  • the pattern design of the signal (or the transmission of the SSB and other signal channels) is found.
  • CSI-RS can also be SRS, or Paging, or other signal channels.
  • Case 1 is applicable to how the DRS internal component signal channel SSB, CSI-RS constitutes DRS, and also how the SSB and CSI-RS signal channels are coordinated.
  • the DRS includes at least the SSB and the CSI-RS.
  • FIG. 5 is a multiplexing method 1 of the DRS according to the embodiment of the present application, including FIG. 5-a and FIG. 5-b.
  • the CSI-RS occupies one, or two, or four OFDM symbols in the time domain.
  • the number of ports is 1, 2, 4, 8, or more ports (up to 32 ports).
  • the number of CSI-RS ports is 1, or 2, or 4, or 8 ports.
  • the number of CSI-RS time domain symbols is one, or two OFDM symbols.
  • Case 1a CSI-RS and SSB time domain multiplexing, CSI-RS and SSB time domain continuous, or time domain discontinuity. That is, the OFDM symbols occupied by the CSI-RS and the SSB may be continuous or discontinuous in the time domain. As shown in Figure 5-a.
  • the advantage of CSI-RS and SSB time domain multiplexing is that the CSI-RS does not need to avoid the frequency domain resources occupied by the SSB, and the processing in the frequency domain is relatively simple.
  • CSI-RS and SSB may be contiguous in time domain or discontinuous in time domain. It is beneficial to make the CSI-RS configuration flexible without forcing the CSI-RS and the SSB to be continuous or discontinuous in the time domain. However, in order to avoid the discontinuity between the CSI-RS and the SSB time domain, the channel occupancy needs to be re-executed when the CSI-RS is sent.
  • the CSI-RS and the SSB time domain may be configured to be consecutive.
  • the CSI-RS occupies one or more consecutive symbols adjacent to the front or the back of the SSB.
  • Case 1b CSI-RS and SSB frequency domain multiplexing
  • the CSI-RS is not transmitted in the frequency domain resources occupied by the SSB.
  • the frequency domain resources here can be granular in PRB. That is, the CSI-RS is not sent on the PRBs occupied by the SSB.
  • the advantage of CSI-RS and SSB frequency domain multiplexing is that the CSI-RS does not need to occupy additional time domain symbols, and can be sent on the OFDM symbols occupied by the SSB, without additionally increasing the symbol length of the DRS, and the time domain resource overhead is higher. small.
  • the CSI-RS and the SSB are frequency domain multiplexed.
  • the CSI-RS avoids the frequency domain resources occupied by the SSB, and does not send the CSI-RS on the PRB occupied by the SSB.
  • the CSI-RS occupies only 1 OFDM symbol, it may be sent on the first, or second, or third, or fourth OFDM symbol occupied by the SSB;
  • the CSI-RS occupies 2 OFDM symbols, it can occupy the 1st and 2nd, or 3rd and 4th, or 2nd and 3rd, or 1st and 3rd in the SSB. Or on the 2nd and 4th OFDM symbols;
  • the CSI-RS may be correspondingly transmitted on the 4 OFDM symbols occupied by the SSB;
  • DRS includes SSB, CORESET/PDSCH. SSB and CORESET time domain multiplexing.
  • the DRS may further include a CSI-RS
  • FIG. 6 is a multiplexing mode 2 of the DRS in the embodiment of the present application, including FIG. 6-a, FIG. 6-b, and FIG. 6-c.
  • SSB and CORESET/PDSCH time domain multiplexing correspond to SS/PBCH block and control resource set multiplexing pattern 1 defined by 3GPP TS 38.213-f00.
  • the SSB and the CORESET time domain may be defined to be continuous, that is, only the CORESET and SSB time domain continuous configurations are adopted.
  • CORESET is sent on one or more consecutive symbols that are consecutive after the SSB.
  • the number of symbols occupied by the CORESET may be limited.
  • the CORESET in the discovery signal uses only one OFDM symbol or two OFDM symbols. .
  • the signals or channels in the DRS may be limited to use the same subcarrier spacing (SCS), or different subcarrier spacing SCS.
  • SCS subcarrier spacing
  • the use of different subcarrier spacing (SCS) for signals or channels in the DRS facilitates shortening the duration of time occupied in the time domain.
  • the SSS used for SSB is 15 kHz
  • the SCS used for CORESET is 30 kHz.
  • the 30 kHz occupation of 1 symbol, 2 symbols or 3 symbols is only equivalent to 0.5, 1, or 1.5 symbol duration of 15 kHz.
  • the CSI-RS can be sent as follows:
  • the CSI-RS occupies one, or two, or four OFDM symbols in the time domain.
  • the number of ports is 1, 2, 4, 8, or more ports (up to 32 ports).
  • the number of CSI-RS ports is 1, or 2, or 4, or 8 ports.
  • the number of CSI-RS time domain symbols is one, or two OFDM symbols.
  • Method 1 CSI-RS is frequency-multiplexed with CORESET or PDSCH.
  • the CSI-RS is transmitted on the CORESET, or OFDM symbol occupied by the PDSCH.
  • the CSI-RS is not sent on the frequency domain resources occupied by the CORESET; as shown in Figure 6-a; the frequency domain resources here can be granular to the PRB. That is, the CSI-RS is not sent on the PRBs occupied by the CORESET.
  • Method 2 CSI-RS and SSB frequency division multiplexing.
  • the CSI-RS is transmitted on the symbol occupied by the SSB, and the CSI-RS is not transmitted in the frequency domain resource occupied by the SSB.
  • the frequency domain resources here can be granular in PRB. That is, the CSI-RS is not sent on the PRBs occupied by the SSB.
  • the multiplexing method is the same as Case1b. See Figure 6-b.
  • Method 3 CSI-RS and SSB, and CORESET or PDSCH time division multiplexing.
  • the SSB, CORESET/PDSCH, and CSI-RS occupy different OFDM symbols.
  • SSB, CORESET/PDSCH, and CSI-RS occupy consecutive OFDM symbols.
  • Figure 6-c when the CSI-RS and SSB or CORESET/PDSCH time domain are consecutive, the CSI-RS occupies one or more consecutive symbols adjacent to or behind the SSB or CORESET/PDSCH.
  • DRS includes SSB, CORESET, and PDSCH.
  • the SSB is multiplexed with the CORESET frequency domain, and the CORESET and SSB are in different symbols.
  • the DRS may further include a CSI-RS, and FIG. 7 is a multiplexing mode 3 of the DRS in the embodiment of the present application, including FIG. 7-a and FIG. 7-b.
  • the SSB is frequency domain multiplexed with the CORESET/PDSCH, and the CORESET and SSB are in different symbols.
  • the SSB and CORESET time domain multiplexing patterns correspond to the SS/PBCH block and control resource set multiplexing pattern 2 defined by 3GPP TS 38.213-f00.
  • the frequency domain multiplexing of SSB and CORESET/PDSCH is somewhat to reduce the occupation time.
  • the CSI-RS can be sent as follows:
  • the CSI-RS occupies one, or two, or four OFDM symbols in the time domain.
  • the number of ports is 1, 2, 4, 8, or more ports (up to 32 ports).
  • the number of CSI-RS ports is 1, or 2, or 4, or 8 ports.
  • the number of CSI-RS time domain symbols is one, or two OFDM symbols.
  • Method 1 CSI-RS and CORESET are frequency division multiplexed.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the CORESET.
  • the CSI-RS is not sent on the frequency domain resources occupied by the CORESET; as shown in Figure 7-b; the frequency domain resources here can be granular to the PRB. That is, the CSI-RS is not sent on the PRBs occupied by the CORESET.
  • Method 2 CSI-RS and SSB frequency division multiplexing.
  • the CSI-RS is transmitted on the symbol occupied by the SSB, and the CSI-RS is not transmitted in the frequency domain resource occupied by the SSB.
  • the frequency domain resources here can be granular in PRB. That is, the CSI-RS is not sent on the PRBs occupied by the SSB.
  • the multiplexing method is the same as Case1b. See Figure 7-b.
  • Method 3 CSI-RS is time-division multiplexed with SSB or CORESET/PDSCH.
  • the CSI-RS occupies a different OFDM symbol than the SSB or CORESET/PDSCH.
  • CSI-RS and SSB occupy consecutive OFDM symbols.
  • Figure 7-a when the CSI-RS and SSB or CORESET/PDSCH time domain are consecutive, the CSI-RS occupies one or more consecutive symbols adjacent to or behind the SSB or CORESET/PDSCH.
  • DRS includes SSB, CORESET/PDSCH.
  • the SSB is multiplexed with the CORESET frequency domain, and the CORESET and SSB are in the same symbol.
  • the DRS may further include a CSI-RS, and FIG. 8 is a multiplexing manner of the DRS of the embodiment of the present application, including FIG. 8-a and FIG. 8-b.
  • the SSB is frequency domain multiplexed with the CORESET/PDSCH, and the CORESET and SSB are in the same symbol.
  • the SSB and CORESET time domain multiplexing patterns correspond to the SS/PBCH block and control resource set multiplexing pattern 3 defined by 3GPP TS 38.213-f00.
  • the CSI-RS can be sent as follows:
  • the CSI-RS occupies one, or two, or four OFDM symbols in the time domain.
  • the number of ports is 1, 2, 4, 8, or more ports (up to 32 ports).
  • the number of CSI-RS ports is 1, or 2, or 4, or 8 ports.
  • the number of CSI-RS time domain symbols is one, or two OFDM symbols.
  • Method 1 CSI-RS and SSB, and / or CORESET / PDSCH frequency division multiplexing.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB or CORESET.
  • the CSI-RS is not transmitted on the frequency domain resources occupied by the SSB or CORESET; the frequency domain resources here may be granular in the PRB. That is, the CSI-RS is not sent on the SRB or the PRBs occupied by the CORESET. See Figure 8-b.
  • Method 2 CSI-RS is time-division multiplexed with SSB or CORESET/PDSCH.
  • the CSI-RS occupies a different OFDM symbol than the SSB or CORESET/PDSCH.
  • CSI-RS and SSB occupy consecutive OFDM symbols.
  • Figure 8-a when the CSI-RS and SSB or CORESET/PDSCH time domain are consecutive, the CSI-RS occupies one or more consecutive symbols adjacent to or behind the SSB or CORESET/PDSCH.
  • the configuration SSB is transmitted together with other signal channels, and is jointly transmitted on the SSB and other signal channels.
  • Angle, configuration methods include: mode one, mode two, and mode three.
  • Method 1 SSB and CSI-RS are jointly sent;
  • the time-frequency domain configuration of the SSB and the CSI-RS is as follows:
  • the SSB and the CSI-RS are multiplexed in the time domain, and the OFDM symbols occupied by the SSB and the CSI-RS are continuous in the time domain or discontinuous. or,
  • the SSB and the CSI-RS are multiplexed in the frequency domain, and the CSI-RS is not configured or transmitted on the frequency domain resources occupied by the SSB component signal channel.
  • Method 2 SSB and CORESET/PDSCH jointly send;
  • the time-frequency domain configuration of SSB and CORESET/PDSCH is as follows:
  • the SSB and the CORESET/PDSCH are multiplexed in the time domain, and the OFDM symbols occupied by the SSB and the CORESET/PDSCH are continuous in the time domain or discontinuous. or,
  • SSB and CORESET/PDSCH are multiplexed in the frequency domain.
  • Mode 3 SSB, CORESET/PDSCH and CSI-RS are jointly sent;
  • the time-frequency domain configuration of SSB, CORESET/PDSCH, and CSI-RS is as follows:
  • the CSI-RS is frequency-multiplexed with CORESET or PDSCH.
  • the CSI-RS is transmitted on the CORESET, or OFDM symbol occupied by the PDSCH.
  • the CSI-RS is not configured or sent on the frequency domain resources occupied by the CORESET; or
  • SSB and CORESET/PDSCH are multiplexed in the time domain.
  • CSI-RS is frequency-multiplexed with SSB.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB.
  • the frequency domain resources occupied by the CSI-RS on the SSB component signal channel are not configured or transmitted. or,
  • SSB, CORESET/PDSCH, and CSI-RS are multiplexed in the time domain.
  • the OFDM symbols occupied by the SSB, CORESET/PDSCH, and CSI-RS are consecutive or discontinuous in the time domain. or,
  • the SSB and CORESET/PDSCH are multiplexed in the frequency domain, using multiplexing pattern 2 (SSB and CORESET are in different OFDM symbols).
  • CSI-RS is frequency-multiplexed with CORESET.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the CORESET.
  • the CSI-RS is not configured or sent on the frequency domain resources occupied by the CORESET; or
  • the SSB and CORESET/PDSCH are multiplexed in the frequency domain, using multiplexing pattern 2 (SSB and CORESET are in different OFDM symbols).
  • CSI-RS is frequency-multiplexed with SSB.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB, and the CSI-RS is not configured or transmitted in the frequency domain resource occupied by the SSB. or,
  • the SSB and CORESET/PDSCH are multiplexed in the frequency domain, using multiplexing pattern 2 (SSB and CORESET are in different OFDM symbols).
  • the CSI-RS is time division multiplexed with the SSB or CORESET/PDSCH.
  • the CSI-RS occupies a different OFDM symbol than the SSB or CORESET/PDSCH.
  • the CSI-RS and SSB occupy OFDM symbols in the time domain continuously or discontinuously. or,
  • the SSB and CORESET/PDSCH are multiplexed in the frequency domain, and the multiplexing pattern 3 is used (CORESET and SSB are in the same OFDM symbol).
  • CSI-RS is frequency-multiplexed with SSB or CORESET.
  • the CSI-RS is transmitted on the OFDM symbol occupied by the SSB or CORESET.
  • the CSI-RS is not configured or sent on the frequency domain resources occupied by the SSB or CORESET; or,
  • the SSB and CORESET/PDSCH are multiplexed in the frequency domain, and the multiplexing pattern 3 is used (CORESET and SSB are in the same OFDM symbol).
  • CSI-RS is time-division multiplexed with SSB or CORESET.
  • the CSI-RS occupies a different OFDM symbol than the SSB or CORESET.
  • the OFDM symbols occupied by the CSI-RS and the SSB or CORESET are consecutive or discontinuous in the time domain.
  • the multiplexing pattern 2 in the above corresponds to the SSB and CORESET/PDSCH multiplexing pattern 2 defined in 3GPP 38.213-f00.
  • the multiplexing pattern 3 in the above corresponds to the SSB and CORESET/PDSCH multiplexing mode 3 defined in 3GPP38.213-f00.
  • the DRS or SSB in this embodiment may perform only one fast LBT without a contention fallback window, that is, CAT 2 in the LAA, for example, using a fixed duration listening interval before transmission. During this listening duration, if the channel is idle (the detected energy is less than or equal to the threshold), the DRS is sent. If the channel is busy (the energy being heard is greater than or equal to the threshold), no DRS is sent.
  • the SSB in this embodiment is jointly transmitted with other signal channels, and the following methods 1 and 2 may exist.
  • Method 1 The LBT method jointly sent by the SSB and other signal channels is the same as the LBT mode when the SSB is separately transmitted. For example, the listening interval of a fixed-time retraction window is used for a fixed duration.
  • Method 2 The LBT mode jointly sent by the SSB and other signal channels is different from the LBT mode when the SSB is separately transmitted.
  • the LBT mode jointly sent by the SSB and other signal channels is an LBT mode with a competitive back-off window.
  • the joint transmission of the SSB with other signal channels also employs a fixed duration listening interval of the contention free fallback window, but the listening interval is longer than the LBT listening interval duration when the SSB is separately transmitted.
  • the above embodiments are also applicable to the joint transmission of DRS and other channel signals.
  • the DRS only includes the SSB and the CSI-RS, and the above method is also applicable to the joint transmission of the DRS and the CORESET/PDSCH.
  • each component signal in the DRS is transmitted in the time domain, or the SSB is transmitted together with other signal channels in the time domain, for example, each component signal of the DRS is continuously transmitted in the time domain, or the SSB and other signal channels are in time. Send continuously on the domain. The reason is to reduce the number of LBTs, increase the chances of accessing unauthorized carriers, and reduce overhead.
  • the frequency domain transmission of the signal or the SS/PBCH block is found.
  • the European Telecommunication Standards Institute stipulates that the Occupied Channel Bandwidth (OCB) must be between 80% and 100% of the nominal channel bandwidth.
  • OCB Occupied Channel Bandwidth
  • COT Channel Occupancy Time
  • the SBB of the SSB is related to the subcarrier spacing.
  • the SSB OCB of the 15 kHz subcarrier spacing is 3.6 MHz, and the SSB OCB of the 30 kHz subcarrier spacing is 7.2 MHz.
  • the nominal bandwidth of the system is at least 5 MHz, and in most scenarios it is greater than 5 MHz, for example 20 MHz, or even wider.
  • Their frequency domain transmission related technologies do not meet the ETSI OCB occupancy requirements.
  • Method 1 When the base station sends the SSB or the discovery signal, the base station sends an occupation signal on the frequency domain blank resource of the SSB or the discovery signal.
  • These occupied signals may be useful signals, carrying useful information, such as operator ID or some system information; or may be useless signals, do not carry useful information, and only serve as a frequency domain.
  • Method 2 The SSB or discovery signal is repeatedly transmitted in the frequency domain, and one or more SSBs or discovery signals are transmitted in the frequency domain.
  • Method 3 The SSB or discovery signal multiplexes CORESET/PDSCH in the frequency domain.
  • One or more SSB or discovery signals and CORESET/PDSCH are transmitted in the frequency domain.
  • one or more SSB or discovery signals are transmitted in the frequency domain, but only one CORESET/PDSCH is transmitted.
  • Method 4 The SSB or discovery signal multiplexes the CSI-RS in the frequency domain.
  • the CSI-RS is not sent on the frequency domain resources occupied by the SSB.
  • Method 5 Use a larger subcarrier spacing, or limit the duration of the discovery signal, to reduce the impact on the frequency domain from the time domain.
  • the carrier frequency is 30 kHz below 6 GHz, and the carrier frequency is 240 kHz above 6 GHz.
  • the duration of the DRS is limited, for example, no more than 4, or 5, or 6, or 7, or 14 OFDM symbols.
  • Method 6 Limit the period of the SSB or the discovery signal window.
  • the period of the SSB window or the discovery signal window should not be too small, and the influence on the frequency domain is reduced from the time domain.
  • the period of the SSB window (which is a half frame, or SSB burst set periodicity) in the related art is 5, 10, 20, 40, 80 or 160 ms.
  • the minimum period of 5 ms is too small, and the minimum period of the DRS or SSB window can be limited to 20 ms or 40 ms.
  • the time domain transmission (periodic transmission) of the signal or the SS/PBCH block is found.
  • the period in the SSB block burst set related art is 5, 10, 20, 40, 80 or 160 ms.
  • Method 1 Limit the period of the SSB or the discovery signal window, and the period of the SSB window or the discovery signal window should not be too small.
  • the minimum period of the SSB window is too small, and in the NR-U, the NR-U SSB burst set may not actually need to be transmitted in a short period, and the minimum period of the DRS or SSB window may be limited to 20 ms or 40 ms.
  • Method 2 Double-cycle setting of the SSB window or the discovery signal window.
  • the base station configures two periods for the SSB window or the discovery signal window, and each period has a set of values or a set of values.
  • the long-period value set is ⁇ 80ms, 160ms ⁇
  • the short-period value set is ⁇ 10ms, 20ms ⁇ .
  • the long period is set to 80ms and the short period is set to 10ms.
  • the dual-cycle setting can effectively improve the transmission opportunity of the SSB or the discovery signal, and does not transmit too frequently, affecting the access of other devices.
  • the SSB window or the discovery signal window can take a two-cycle setting.
  • the two-cycle setting method includes two sub-modes.
  • Sub-method 1 fixed long period and short period.
  • the base station attempts to transmit the SSB or discovery signal in each fixed long-period SSB window or discovery signal window. Only when the long-period SSB window or the discovery signal window fails to transmit the SSB or the discovery signal fails, the base station will perform the short cycle again. Try sending an SSB or discovery signal. Once successful, skip to the next long-period SSB window or the discovery signal window. If it fails, continue to try to send the SSB or discovery signal in short cycles.
  • the following subframes only represent an example of time granularity, and are equally applicable to time granularity such as time slots, frames, and minislots.
  • the first subframe contends for the channel in the long period starting subframe t0 or the starting subframe t0,
  • the subframe t1 of the next contention channel is the subframe number plus the long-period subframe.
  • the subframe t1 of the next contending channel is the subframe number plus the short-period subframe.
  • the subframe t2 of the next contending channel is the starting subframe of the next long period or the previous subframe of the starting subframe.
  • the starting subframe of the next long period and the subframe are not necessarily in a long period relationship.
  • the starting subframe of the next long period is equal to the starting subframe of the last long period plus the subframe of the long period.
  • the subframe t2 of the next contending channel is the subframe number plus the short-period subframe.
  • the starting subframe of the long-period SS/PBCH block burst set is subframe 0, subframe 80, subframe 160, subframe 240, and the like.
  • the starting subframe of the short-period SS/PBCH block burst set is subframe 0, subframe 10, subframe 20, subframe 30, and the like.
  • subframe 10 subframe 0 + short period 10 ms.
  • subframe 20 subframe 10 + short period 10 ms.
  • Sub-mode 2 flexible long period and short period.
  • the base station does not necessarily attempt to transmit an SSB or discovery signal in every fixed long-period SSB window or discovery signal window.
  • the base station transmits the SSB or the discovery signal successfully in the long-term or short-period SSB or discovery signal window, and the position of the next transmission SSB or discovery signal window is equal to the current position plus the long period. If it fails, it attempts to send an SSB or discovery signal in a short period.
  • the following subframes only represent an example of time granularity, and are equally applicable to time granularity such as time slots, frames, and minislots.
  • the subframe t1 of the next contention channel is the subframe number plus the long-period subframe.
  • the subframe t1 of the next contending channel is the subframe number plus the short-period subframe.
  • the subframe t2 of the next contending channel is the subframe number plus the long-period subframe.
  • the subframe t2 of the next contending channel is the subframe number plus the short-period subframe.
  • the starting subframe of the long-period and short-period SS/PBCH block burst set is subframe 0.
  • subframe 80 subframe 0 + long period 80 ms.
  • subframe 10 subframe 0 + short period 10 ms.
  • subframe 90 subframe 10 + long period 80 ms.
  • subframe 20 subframe 10 + short period 10 ms.
  • Method 3 There are multiple SSB windows or discovery signal windows (or called SSB burst sets, or DRS burst sets) in the period of an SSB window or a discovery signal window. These sets or windows may be continuous or discontinuous, or may be equally spaced or sub-period in a cycle.
  • the period is 80ms, and there are multiple SSB burst sets in the period. For example, it contains 2 sets. They are located in: subframe 0 - subframe 4, subframe 5 - subframe 9.
  • Set is continuous; or, respectively, is located in: subframe 0 - subframe 4, subframe 10 - subframe 14; or, respectively, is located in: subframe 0 - subframe 4, subframe 40 - subframe 44, in It is equally spaced or sub-period distributed within 80ms.
  • SSB index i can be sent only once in these sets (after the successful transmission, it will jump to the next cycle), or it can be sent multiple times (trying to send in each set).
  • the transmission of the signal or SS/PBCH block in the window is found.
  • the period in the SSB block burst set related art is 5, 10, 20, 40, 80 or 160 ms.
  • Method 1 Increase the window length (or expand the SSB burst set length), for example, from half frame to frame. More SSBs or DRSs are included in each window or in each SSB burst set.
  • a beamforming SSB there are a plurality of beams (for example, eight beams).
  • the carrier frequency is greater than 3 GHz but less than or equal to 6 GHz
  • Each SSB corresponds to one beam.
  • Method 2 When the device is ready to send the candidate SSB index i or DRS i, the contention channel fails, and sending the SSB index i or DRS i fails.
  • the device may contend for the channel before any of the next alternative SSBs or defined alternate SSB locations within the window, attempting to transmit the SSB or DRS again. From the perspective of the UE, the UE will assume that the SSB or DRS will appear at any alternate SSB location within the window (e.g. Half Frame), or at one or more alternative SSB or DRS locations.
  • the L alternative SSBs within the window can be used to transmit the SSB.
  • the device can contend for the channel before SSB index 1, and then attempt to send the SSB.
  • the UE From the perspective of the User Equipment (UE), the UE assumes that the SSB or DRS will appear in any candidate SSB position in the window (e.g. Half Frame).
  • UE User Equipment
  • SSB index 0 corresponds to beam0
  • SSB index2 corresponds to beam1
  • SSB index4 corresponds to beam2.
  • the SSB index0 transmission fails, the SSB can be contending at the SSB index1 location to try to send the SSB. If it fails again, the channel cannot be contending again at SSB index2. That is, if there are multiple candidate SSBs corresponding to one beam in the window, the base station may try to send the SSB at these candidate SSB locations, and the UE will assume that any of the qualified candidate SSBs has an alternate SSB location. There may be an SSB. From the perspective of the UE, the UE will assume that the SSB or DRS will appear in one or more candidate SSB or DRS locations defined by the e.g. Half frame.
  • the device may also contend for the channel again at SSB index 2, attempting to send the SSB on beam0.
  • the reason is that beam1 is likely to be busy at the SSB index2 position, while beam0 is idle. So, further, you can define the following:
  • the primary SSB has a high priority.
  • Secondary candidate SSB Secondary SSB has secondary priority.
  • Main beam When the main beam channel listening result is busy, it will try to send the SSB on the auxiliary beam. If the primary beam channel listening result is idle, the corresponding SSB is preferentially transmitted on the primary beam.
  • Secondary beam When the primary beam channel listening result is busy, it will attempt to send the SSB on the secondary beam. If the primary beam channel listening result is idle, the corresponding SSB is preferentially transmitted on the primary beam. At this time, the transmission of the SSB on the secondary beam fails.
  • SSB index j is the primary candidate SSB, or beam j is the primary beam.
  • the channel fails in beam0.
  • SSB index 1 is sent, if the channel is successful in beam 1 (main beam), SSB index1 is sent in beam 1; if the channel fails in beam 1 and the channel 0 (auxiliary beam) contends successfully, then in beam 0 Send the SSB.
  • the UE will assume that the SSB or DRS will appear in any of the alternative SSB locations in the window (e.g. Half Frame).
  • the SSB can be transmitted simultaneously on two or two beams at an alternate SSB location.
  • the channel fails in beam0.
  • SSB index 1 is transmitted, if the channel is successfully contending in beam 1 and the channel is successful in beam 0 (secondary beam), then SSB can be sent simultaneously in beam 0 and beam1.
  • the UE will assume that the SSB or DRS will appear in any of the alternative SSB locations in the window (e.g. Half Frame).
  • This time involves the SSB j numbering problem, the rate matching problem, and the cognitive problem of the UE. If it is sent according to the number index 0, the UE has no problem in understanding the beam, but there is a problem in timing synchronization and rate matching. On the contrary, if it is sent according to the number index 1, there is no problem in timing synchronization and rate matching, but the UE has a problem in understanding the beam. .
  • Method 3 An alternate location where the SSB can be sent is configured on any slot in the window.
  • the location of the candidate SSB is distributed only in a part of the subframe or time slot in the half-frame window.
  • the SSB can be sent in any time slot within the half frame window. From the perspective of the UE, the UE will assume that the SSB or DRS will appear in any time slot within the half frame window.
  • FIG. 9 is a method for transmitting a discovery signal or SS/ in the window in the embodiment of the present application.
  • a schematic diagram of the PBCH block is shown in FIG. 9.
  • the candidate SSB can also be defined after 3 ms within the half frame window.
  • the SSB pattern per ms or per slot can be the same as the existing SSB.
  • the carrier frequency domain is greater than 3 GHz but less than or equal to 6 GHz
  • the subcarrier spacing is 15 kHz
  • the half frame window is in front.
  • the SSB pattern per ms or per slot can be the same as the existing SSB.
  • An alternative SSB exists in the first 1 ms of the window, and an alternative SSB can also be defined 4 ms after the half frame window.
  • the SSB pattern per ms or per slot can be the same as the existing SSB.
  • the carrier frequency domain is greater than 3 GHz but less than or equal to 6 GHz
  • the subcarrier spacing is 30 kHz
  • An alternative SSB exists in the first 2 ms of the half frame window, and an alternative SSB can also be defined after 3 ms in the half frame window.
  • the SSB pattern per ms or per slot can be the same as the existing SSB.
  • the carrier frequency domain is greater than 6 GHz
  • the subcarrier spacing is 120 kHz/240 KHz
  • no SSB is defined in the blank portion.
  • the time slot defines a new alternate SSB.
  • a new 64 candidate SSBs can be defined without defining the location of the SSB in the blank portion of the half frame window.
  • the sequence of the signal or SS/PBCH block is found.
  • the indexing method of the SSB defined in 38.213-f00 is as follows:
  • the maximum number of SSBs in the half frame window is 4, and the numbers are sequentially SSB index 0-3;
  • 15 kHz occupies 2 ms within the half frame window (the first 2 slots). 30kHz occupies 1ms (the first 2 slots) in the half frame window.
  • the maximum number of SSBs in the half frame window is 8, and the number is SSB index 0-7 in sequence;
  • 15 kHz occupies 4 ms within the half frame window (the first 4 slots).
  • 30kHz occupies 2ms within the half frame window (the first 4 slots).
  • the maximum number of SSBs in the half frame window is 64, and the number is SSB index 0-63;
  • 120kHz takes up about 5ms in the half frame window.
  • 30kHz takes up about 2.5ms in the half frame window.
  • Method 1 The newly added candidate SSB number continues to be consecutively numbered with the existing alternative SSB number;
  • the maximum number of SSBs in the half frame window is 8, and the number is SSB index 0-7 in sequence;
  • the maximum number of SSBs in the half frame window is 64, and the number is SSB index 0-63;
  • 120 kHz can add x alternative SSBs in the window.
  • the newly added SSB number is SSB index64-(64+x-1).
  • 240 kHz can add y alternative SSBs in the window.
  • the newly added SSB number is SSB index64-(64+y-1).
  • This numbering method has the advantage that there is no problem with timing synchronization and rate matching, but it is necessary to clarify the correspondence with beam.
  • Method 2 The newly added candidate SSB number repeats the previously available alternative SSB number.
  • the maximum number of SSBs in the half frame window is 4, and the number is SSB index 0-3.
  • the 15 kHz subcarrier spacing occupy the first 2 ms of the half frame; for the 30 kHz subcarrier spacing, occupy the first 1 ms of the half frame.
  • the newly added SSB numbers in the 3ms and 4ms of the half frame are SSB index 0-3 (for 15 kHz); the newly added SSB number in the 2 ms of the half frame is SSB index 0-3 (for 30 kHz); .
  • the maximum number of SSBs in the half frame window is 8, and the numbers are sequentially SSB index 0-7.
  • the 15 kHz subcarrier spacing occupy the first 4 ms of the half frame; for the 30 kHz subcarrier spacing, occupy the first 2 ms of the half frame.
  • the newly added SSB number in the 5ms of the half frame is SSB index 0-1 (for 15 kHz). If the window length is larger than the half frame, the number can be increased sequentially; the newly added SSB number in the 3ms and 4ms of the half frame For SSB index 0-7 (for 30kHz); and so on.
  • This numbering method has no problem for the UE to understand the beam, but there are problems with timing synchronization and rate matching.
  • Method 3 The SSB number range is unchanged, and is still limited by L (when the carrier frequency domain is less than or equal to 3 GHz, the maximum number of SSBs in the window is 4; when the carrier frequency domain is greater than 3 GHz but less than or equal to 6 GHz, the maximum number of SSBs in the window L is 8; when the carrier frequency domain is greater than 6 GHz, the maximum number of SSBs in the window is 64).
  • the newly added candidate SSB number is determined by the number of the original candidate SSB to be issued. In an embodiment, the newly added alternate SSB number is the same as the original alternate SSB number to be sent.
  • the original candidate SSB range is SSB 0-7.
  • the contention channel fails. Try to contend for the channel before the 9th alternate SSB (newly added SSB location) location if the contention channel is successful.
  • the 9th alternate SSB is transmitted with the number of SSB 0.
  • the PBCH-associated DMRS sequence is generated using the number of SSB 0.
  • the UE In this numbering mode, the UE has no problem in understanding the beam, but there are problems in timing synchronization and rate matching; how to perform slot timing.
  • the SFN number can be determined, and the first frame or the second half frame can be determined according to the half frame, and the slot number and the symbol timing in the slot can be determined according to the SSB index.
  • a certain SSB index i fails to transmit due to a contention channel failure, it may be sent at other numbered SSB transmission locations in the window, for example, the SSB is located on the SSB index j location. At this time, the SSB number sent at the other numbered SSB transmission position adopts index i or the original number index j, and the method 1 and method 2 are used here for description.
  • Method 1 SSB index i corresponds to beam x, and competition for beam x fails at the original number SSB index i, so that sending SSB index i fails.
  • the SSB sent by beam x on the original number SSB index j uses the number index i;
  • the SSB index 0 initial symbol should be the symbol 2
  • the SSB index 1 initial symbol should be the symbol 8. If the SSB index0 is not successfully transmitted due to the contention channel failure, the channel is successfully contending before the SSB index 1 position, and the SSB is transmitted.
  • the SSB uses index0 or index1. If you use index 0, the UE will receive the SSB and will use the symbol 8 as the symbol 2, so that the symbol or slot synchronization error.
  • Rate matching is still performed as before, and the problem is not big. For example, 8 bits (bit) sequentially indicate SSB index0 - index 7. If the SSB is successfully transmitted only at the SSB index 1 position, the bit position corresponding to the SSB index 1 is set to 1.
  • Method 2 SSB index i corresponds to beam x, and competition for beam x fails at the original number SSB index i, so that sending SSB index i fails.
  • the SSB sent by beam x on the original number SSB index j uses the number index j;
  • the original number is used, for example, the position is SSB index j, and the number of j is used.
  • the UE may cause the UE to consider that the SSB sent by the SSB index1 is sent by the corresponding beam of the SSB index1, and the SSB sent by the SSB index1 is actually sent by the beam corresponding to the SSB index0, or omnidirectional.
  • Non-beam shaping sends SSB, the problem is not big.
  • the transmission opportunity of the SS/PBCH block or the discovery signal in the unlicensed carrier scenario can be effectively improved, thereby ensuring cell search, synchronization or measurement. And other functions.
  • Embodiments of the present application also provide a storage medium having stored therein a computer program, wherein the computer program is configured to execute the steps of any one of the method embodiments described above.
  • the storage medium may be arranged to store a computer program for performing the following steps S1 and S2:
  • step S1 a signal channel is configured, wherein the signal channel is used for cell search, synchronization and measurement.
  • step S2 the signal channel is transmitted to the terminal.
  • the foregoing storage medium may include, but is not limited to, a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.
  • ROM read-only memory
  • RAM random access memory
  • mobile hard disk a magnetic disk
  • optical disk a variety of media that can store computer programs.
  • Embodiments of the present application also provide an electronic device including a memory and a processor having a computer program stored therein, the processor being configured to execute a computer program to perform the steps of any of the above method embodiments.
  • the electronic device may further include a transmission device and an input and output device, wherein the transmission device is connected to the processor, and the input and output device is connected to the processor.
  • the processor may be arranged to perform the following steps S1 and S2 by a computer program.
  • step S1 a signal channel is configured, wherein the signal channel is used for cell search, synchronization and measurement.
  • step S2 the signal channel is transmitted to the terminal.
  • modules or steps of the present application can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the application is not limited to any particular combination of hardware and software.

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Abstract

公开了一种信号信道的发送方法、基站、存储介质、电子装置，其中，该方法包括：配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量；将所述信号信道发送给终端。

Description

信号信道的发送方法以及基站、存储介质、电子装置
本申请要求在2018年04月04日提交中国专利局、申请号为201810299874.X的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，例如涉及一种信号信道的发送方法、基站以及存储介质、电子装置。
背景技术
相关技术中，新无线(New Radio，NR)利用非授权载波时会面临诸多问题。首先，在有些国家和地区，对于非授权频谱的使用，有相应的管制政策。比如，设备在使用非授权载波发送数据之前必须先执行先听后说(Listen Before Talk，LBT，也叫做空闲信道评估(Clear Channel Assessment，CCA))，只有LBT成功的设备才能在该非授权载波上发送数据。
对于非授权载波操作，与授权载波相同，首先就需要考虑如何进行小区搜索、同步和测量，以及发送必要的系统信息。相关技术中，在NR授权载波中，同步信号/物理广播信道(Synchronization Signal/Physical Broadcast Channel，SS/PBCH)块(SS/PBCH block，SSB)具备小区搜索、同步和测量等功能。SSB中的主同步信号/辅同步信号(Primary Synchronization Signal/Secondary Synchronization Signal，PSS/SSS)用于小区搜索和时频同步；SSB中的SSS用于Idle/Inactive/Connected状态下的L3无线资源管理(L3Radio Resource Management，L3RRM)测量，还可以用于L1参考信号接收功率(L1-Reference Signal Received Power，L1-RSRP)测量，用于beam management；此外，SSB中还包含了物理广播信道(Physical Broadcast Channel，PBCH)，承载了主系统信息(Master Information Block，MIB)。
类似长期演进-协助访问未经许可的频谱(Long Term Evolution-assisted access to unlicensed spectrum，LTE LAA)，NR也可以基于NR的信号和信道，定义一个新的发现信号(discovery reference signal，DRS)来用于小区搜索、同步和测量等功能。
由于非授权载波的特殊性，例如在发送之前需要执行LBT，SS/PBCH block 和/或发现信号的发送面临着不确定性，同时也受非授权频段的规则要求限制，如果设计不当，会严重影响小区搜索、同步和测量的性能。
针对相关技术中存在的上述问题，相关技术中尚未发现有效的解决方案。
发明内容
本申请实施例提供了一种信号信道的发送方法以及基站、存储介质、电子装置。
根据本申请的一个实施例，提供了一种信号的发送方法，包括：配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量；将所述信号信道发送给终端。
根据本申请的另一个实施例，提供了一种基站，包括：配置模块，设置为配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量；发送模块，设置为将所述信号信道发送给终端。
根据本申请的又一个实施例，还提供了一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本申请的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
附图概述
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是本申请实施例的网络构架图；
图2是根据本申请实施例的信号信道的发送方法的流程图；
图3是根据本申请实施例的基站的结构框图；
图4是本申请实施例中的SSB的结构示意图；
图5是本申请实施例的DRS的复用方式一；
图6是本申请实施例的DRS的复用方式二；
图7是本申请实施例的DRS的复用方式三；
图8是本申请实施例的DRS的复用方式四；
图9是本申请实施例在窗内发送发现信号或SS/PBCH block的示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本申请。需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
本申请实施例可以运行于图1所示的网络架构上，图1是本申请实施例的网络构架图，如图1所示，该网络架构包括：基站、终端，其中，基站与终端之间交互信息。
在本实施例中提供了一种运行于上述网络架构的信号的发送方法，图2是根据本申请实施例的信号信道的发送方法的流程图，如图2所示，该流程包括如下步骤：步骤S202和步骤S204。
在步骤S202中，配置一种信号信道。
其中，信号信道用于小区搜索、同步和测量(小区搜索、小区同步和小区测量中个一项或多项操作)。
在步骤S204中，将信号信道发送给终端。
通过上述步骤，能够有效提高在非授权载波场景SSB或发现信号的发送机会，从而保证小区搜索、同步或测量等功能，解决了相关技术中不能公平地发送发现信号的技术问题，提高了整个网络的工作效率。
在一实施例中，上述步骤的执行主体可以为网络侧，如基站等，但不限于此。
在本实施例中，信道信号可以是信道，也可以是信号，也可以同时包括信道和信号。
在一实施例中，信号信道包括以下至少之一：同步信号物理广播信道块SSB，发现信号DRS。
在一个场景中，DRS包括：同步信号物理广播信道块SSB，以及以下至少之一：控制资源集(Control Resource Set，CORESET)，物理下行共享信道(Physical Downlink Shared Channel，PDSCH)，信道状态信息参考信号(Channel-State Information reference signal，CSI-RS)，相位追踪参考信号(Phase-tracking reference  signals，PTRS)，探测参考信号(Sounding Reference Signal，SRS)，寻呼消息Paging。
在一实施例中，配置DRS的方式包括以下示例：
配置DRS包括：SSB和CSI-RS；其中，SSB和CSI-RS占用不同的正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号，SSB与CSI-RS占用的OFDM符号在时域上连续，或者不连续；或，CSI-RS在SSB占用的OFDM符号上发送，CSI-RS在SSB组成信号信道占用的频域资源上不配置或不发送。
配置DRS包括：SSB和CORESET/PDSCH(其中，CORESET/PDSCH包括以下至少之一：CORESET，和PDSCH)；其中，SSB和CORESET/PDSCH在时域复用，SSB与CORESET/PDSCH占用的OFDM符号在时域上连续，或者不连续；或，SSB和CORESET/PDSCH在频域复用。
配置DRS包括：SSB、CORESET/PDSCH和CSI-RS；其中，SSB、CORESET/PDSCH和CSI-RS采用以下至少之一配置：
SSB和CORESET/PDSCH在时域复用，CSI-RS与CORESET/PDSCH频分复用，CSI-RS在CORESET/PDSCH占用的OFDM符号上发送，CSI-RS在CORESET占用的频域资源上不配置或不发送；或，SSB和CORESET/PDSCH在时域复用，CSI-RS与SSB频分复用，CSI-RS在SSB占用的OFDM符号上发送，CSI-RS在SSB组成信号信道占用的频域资源不配置或不发送；或，SSB、CORESET/PDSCH和CSI-RS在时域复用。SSB、CORESET/PDSCH、以及CSI-RS占用的OFDM符号在时域上连续、或不连续、或其中任意两个或多个信号信道占用的OFDM符号连续；或，SSB和CORESET/PDSCH在频域复用，采用第二复用图样(第一复用图样即上述：SSB和CORESET/PDSCH在时域复用)，其中，第二复用图样中SSB与CORESET在不同的OFDM符号，CSI-RS与CORESET频分复用，CSI-RS在CORESET占用的OFDM符号上发送。CSI-RS在CORESET占用的频域资源上不配置或不发送；或，SSB和CORESET/PDSCH在频域复用，采用第二复用图样，CSI-RS与SSB频分复用。CSI-RS在SSB占用的OFDM符号上发送。CSI-RS在SSB组成信号信道占用的频域资源不配置或不发送；或，SSB和CORESET/PDSCH在频域复用，采用第二复用图样，CSI-RS与SSB或CORESET/PDSCH时分复用，CSI-RS与SSB或CORESET/PDSCH占用不同的OFDM符号，CSI-RS与SSB或CORESET/PDSCH占用的OFDM符号在时域连续、或不连续；或，SSB和CORESET/PDSCH在频域复用，采用第三 复用图样，其中，第三复用图样中CORESET与SSB在相同的OFDM符号，CSI-RS与SSB、或CORESET频分复用。CSI-RS在SSB、或CORESET占用的OFDM符号上发送。CSI-RS在SSB、或CORESET占用的频域资源上不配置或不发送；或，SSB和CORESET/PDSCH在频域复用，采用第三复用图样，CSI-RS与SSB、或CORESET时分复用，CSI-RS与SSB或CORESET占用不同的OFDM符号，CSI-RS与SSB或CORESET占用的OFDM符号在时域连续、或不连续。
在一实施例中，将信号信道发送给终端包括以下至少之一：将信号信道在频域上发送给终端；将信号信道在时域上发送给终端。下面分别进行举例说明：
将信号信道在频域上发送给终端包括以下至少之一：在频域上发送信号信道，以及在频域的空白资源上发送占用信号；在频域上发送以下至少之一：至少一个信号信道、和至少一个CORESET/PDSCH；在频域上发送信号信道，以及CSI-RS，在信号信道组成信号信道占用的频域资源上禁止发送或禁止配置CSI-RS；采用大于预设子载波间隔的子载波间隔在频域上发送信号信道组成信号信道；其中，如果载波频率小于或等于6GHz，预设子载波间隔为15kHz，如果载波频率大于或等于6GHz，预设子载波间隔为60kHz；采用大于预设时间的时间窗周期在频域上发送DRS，其中，所述预设时间为5ms。
将信号信道在时域上发送给终端包括以下至少之一：采用大于预设子载波间隔的子载波间隔在时域上发送信号信道组成信号信道；其中，如果载波频率小于或等于6GHz，预设子载波间隔为15kHz。如果载波频率大于或等于6GHz，预设子载波间隔为60kHz；采用大于预设时间的时间窗周期在时域上发送信号信道组成信号信道，其中，预设时间为5ms；采用第一时间窗和第二时间窗在时域上将信号信道发送给终端，或，采用给时间窗配置两种周期在时域上将信号信道组成信号信道发送给终端；采用在时间窗在时域上发送信号信道组成信号信道，其中，一个周期内包括多个时间窗；采用在一个备选信号信道的位置在时域上同时发送多个备选信号信道，多个备选信号的编号可以相同、或不同。
在一实施例中，采用第一时间窗和第二时间窗将信号信道发送给终端包括以下之一：采用第一时间窗将信号信道发送给终端，在第一时间窗发送信号信道失败时，采用第二时间窗将信号信道发送给终端，和/或，在第一时间窗发送信号信道成功时，继续使用第一时间窗；采用第一时间窗或第二时间窗将信号信道发送给终端，在第一时间窗与第二时间窗中至少之一发送信号信道成功时，将当前发送窗的下一个时间窗设置为当前时间窗加上第一时间窗的周期；在第 一时间窗与第二时间窗中至少之一发送信号信道失败时，采用第二时间窗将信号信道发送给终端。
在一实施例中，每个SSB的备选位置(或备选SSB的位置)就是DRS的备选位置(备选DRS的位置)，DRS的序号和SSB的序号相同”，在将信号信道在时间窗内发送给终端之前，方法包括：确定用于发送信号信道的指定时间窗。确定用于发送信号信道的指定时间窗包括以下至少之一：
指定时间窗等于原始时间窗，或通过扩大原始时间窗的时间长度得到，其中，原始时间窗为半个帧时长5ms；
在指定时间窗的任意一个信号信道的备选位置都可以发送信号信道；
在指定时间窗的任意一个时间单元上都配置一个或多个用于发送信号信道的备选位置，其中，时间单元包括以下任意之一：帧、或子帧、或时隙、或OFDM符号；
在指定时间窗内没有定义备选SSB的时间单元上定义新的备选SSB。其中，时间单元包括以下任意之一：帧、或子帧、或时隙、或OFDM符号；
在指定时间窗的第一位置竞选信道失败时，将第一位置之后的第二位置设置为用于发送DRS的备选位置。
在一实施例中，在时间窗内新增加备选SSB时，新增加备选SSB的SSB编号采用以下规则之一进行编号：接着当前备选SSB的最大编号连续编号；重复之前已有的备选SSB编号；由准备发送的SSB的关联关系决定编号；接着第一位置的编号连续编号；与第一位置的编号相同，编号与预配置编号相同。
在一实施例中，在发送SSB i时，竞争信道失败，在其他备选SSB j位置处竞争信道成功，所发SSB采用以下规则之一进行编号：与原始编号相同，采用SSB j的编号；与原始编号不同，采用SSB i的编号；如果在备选SSB j位置同时发送两个SSB，分别采用SSB i的编号和SSB j的编号。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
实施例2
在本实施例中还提供了一种基站，用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和硬件中至少之一的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本申请实施例的基站的结构框图，如图3所示，包括：配置模块30和发送模块32。
配置模块30，设置为配置一种信号信道，其中，信号信道用于小区搜索、同步和测量。
发送模块32，设置为将信号信道发送给终端。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
本实施例考虑到非授权载波场景下的SS/PBCH block(同步/广播信道块，简称为SSB)和/或发现信号的发送问题，保证公平性的前提下，提高SS/PBCH block和/或发现信号的发送机会。
本实施例给出了一种非授权载波中信号或信道的图样设计和/或发送方式，其中，所述信号或信道包括SSB、或发现信号。其中，发现信号的组成包括SSB、以及其他一种或多种信号或信道。SSB和发现信号主要用于小区搜索、时频同步和测量等功能。
本实施例中的SS/PBCH block(即SSB)对应3GPP TS38.211/213-f00中的定义的SS/PBCH block。SSB主要包括PSS、SSS、PBCH以及相关的DMRS，在时域上占用4个OFDM符号，在频域上占用240个资源单元(Resource Element，RE)。上述信号信道为SSB的组成信号。图4是本申请实施例中的SSB的结构示意图。
本实施例还包括以下实施方式一至实施方式六。
实施方式一，发现信号的信号组成。
发现信号至少包括SSB，还包括如下一种或多种信号信道：CORESET以及PDSCH，CSI-RS，PTRS，SRS，Paging。上述信号信道为发现信号DRS的组成信号。
其中，有一些信号信道可以是可选配置的。譬如CSI-RS可以作为发现信号的可选配置信号。
PBCH承载了主系统信息(Master Information Block，MIB)。这里的PDSCH承载一些剩余的其他系统信息，如系统消息块1(System Information Block 1，SIB1)和其他系统信息(如运营商身份标识号码(IDentity，ID))中的至少之一。发现信号如果包括PDSCH，那么还需要包括解调PDSCH的解调参考信号(Demodulation Reference Signal，DMRS)。CORESET用于发送与PDSCH发送相关的控制信息。CSI-RS用于以下至少之一操作：测量节点识别和发送节点识别。PTRS用于相位跟踪。SRS用于上行的信道测量，其测量结果既可以用于上行调度，也可用于下行发送。Paging用于发送寻呼信息。
另外，需要注意的是，标准制定时可以不用发现信号的术语来规范这几种信号信道的发送，或者发现信号仅仅是上述的一种或多种信号信道，另外的一些信号信道不属于发现信号。例如，标准仅标准化在非授权载波中SSB和CORESET/PDSCH、以及CSI-RS的发送，但并不把这几种信号统称为发现信号；或者，标准仅标准化SSB和CORESET/PDSCH组成发现信号，CSI-RS不属于发现信号，它仅作为一个独立的信号，被研究如何与发现信号一起发送。本申请针对发现信号或SSB的方法同样适用于这些情况。
每个half frame窗内的每个SSB的备选位置(或称为备选SSB的位置)就是DRS的备选位置(或称为备选DRS的位置)，DRS的序号和SSB的序号相同。本申请下文中，对于新增的备选SSB的设计同样适用于DRS，譬如新增备选SSB的位置、或SSB的编号等。
实施方式二，发现信号的图样设计(或SSB与其他信号信道的发送)。
下面给出发现信号的图样设计和配置。如下各种情况各个case可以自由组合，并且举例信号可以换成其他信号信道，例如CSI-RS也可以是SRS、或Paging、或其他信号信道。
下述实例既适用于DRS内部各组成信号信道如何发送，也适用于各个信号信道如何协同发送(不从DRS角度来设计)。例如，Case 1既适用于DRS内部组成信号信道SSB、CSI-RS如何组成DRS，也适用于SSB和CSI-RS这两种信号信道如何协同发送。
Case 1：DRS至少包括SSB、CSI-RS，图5是本申请实施例的DRS的复用方式一，包括图5-a和图5-b。
CSI-RS在时域上占用1个、或2个、或4个OFDM符号。端口数为1、2、4、8或更多个端口(最多32个端口)。为降低DRS开销同时满足测量性能，例如CSI-RS端口数为1、或2、或4、或8个端口。例如CSI-RS时域符号数为1个、或2个OFDM符号。
Case 1a：CSI-RS和SSB时域复用，CSI-RS与SSB时域连续、或者时域不连续。也即CSI-RS与SSB占用的OFDM符号在时域上可以连续、或者不连续。如图5-a所示。
CSI-RS与SSB时域复用的好处是CSI-RS不需要避开SSB占用的频域资源，在频域上处理比较简单。
CSI-RS和SSB时域复用时，CSI-RS与SSB可以时域连续、也可以时域不连续。不强制CSI-RS与SSB时域上连续或不连续有利于CSI-RS配置灵活。但为了避免CSI-RS与SSB时域不连续，导致发送CSI-RS时需要重新执行信道占用，例如可以配置CSI-RS与SSB时域连续。
CSI-RS和SSB时域连续时，CSI-RS占用SSB前面或后面相邻的一个或多个连续符号。
Case 1b：CSI-RS和SSB频域复用，在SSB占用的频域资源不发送CSI-RS。如图5-b所示。这里的频域资源可以以PRB为粒度。即CSI-RS在SSB占用的PRBs上不发送。
CSI-RS与SSB频域复用的好处是发送CSI-RS不需要占用额外的时域符号，在SSB占用的OFDM符号上发送即可，不会额外增加DRS的符号长度，时域资源开销较小。
CSI-RS和SSB频域复用，CSI-RS避开SSB占用的频域资源，在SSB占用的PRB上不发送CSI-RS。
如果CSI-RS只占用1个OFDM符号，它可以在SSB占用的第1个、或第2个、或第3个、或第4个OFDM符号上发送；
如果CSI-RS占用2个OFDM符号，它可以在SSB占用的第1个和第2个、或第3个和第4个、或第2个和第3个、或第1个和第3个、或第2个和第4个OFDM符号上发送；
如果CSI-RS占用4个OFDM符号，由于SSB占用了4个OFDM符号，所以CSI-RS可以相应的在SSB占用的这4个OFDM符号上发送；
Case 2：DRS包括SSB、CORESET/PDSCH。SSB与CORESET时域复用。 在一实施例中，DRS还可以包括CSI-RS，图6是本申请实施例的DRS的复用方式二，包括图6-a，图6-b，图6-c。
SSB与CORESET/PDSCH时域复用，SSB与CORESET时域复用图样对应于3GPP TS38.213-f00定义的SS/PBCH block和控制资源集复用模式1(control resource set multiplexing pattern 1)。
在一实施例中，考虑到NR-U使用的非授权载波场景，可以限定SSB与CORESET时域连续，也即只采用CORESET与SSB时域连续的配置。CORESET在SSB后面相连续的一个或多个连续符号上发送。
在一实施例中，考虑到NR-U需要尽量缩短发现信号的占用时长，可以对CORESET占用的符号数限制，例如，发现信号中的CORESET只采用1个OFDM符号、或2个OFDM符号的配置。
在一实施例中，可以限制DRS中的信号或信道采用相同的子载波间隔(subcarrier spacing，SCS)、或者不同的子载波间隔SCS。DRS中的信号或信道采用相同的子载波间隔SCS可以简化设计，因为时域上和频域上的粒度相同。DRS中的信号或信道采用不同的子载波间隔SCS有利于缩短时域上占用的时长。例如SSB采用的SCS为15kHz，而CORESET采用的SCS为30kHz，30kHz占用1个符号、2个符号或3个符号只相当于15kHz的0.5、1、或1.5个符号时长。
如果DRS中还包括CSI-RS，CSI-RS可以按如下方式发送：
CSI-RS在时域上占用1个、或2个、或4个OFDM符号。端口数为1、2、4、8或更多个端口(最多32个端口)。为降低DRS开销同时满足测量性能，例如CSI-RS端口数为1、或2、或4、或8个端口。例如CSI-RS时域符号数为1个、或2个OFDM符号。
方法一：CSI-RS与CORESET、或PDSCH频分复用。CSI-RS在CORESET、或PDSCH占用的OFDM符号上发送。CSI-RS在CORESET占用的频域资源上不发送；如图6-a；这里的频域资源可以以PRB为粒度。即CSI-RS在CORESET占用的PRBs上不发送。
方法二：CSI-RS与SSB频分复用。CSI-RS在SSB占用的符号上发送，并且在SSB占用的频域资源不发送CSI-RS。这里的频域资源可以以PRB为粒度。即CSI-RS在SSB占用的PRBs上不发送。例如复用方式与Case1b相同。如图6-b。
方法三：CSI-RS与SSB、以及CORESET或PDSCH时分复用。在一实施例中，SSB、CORESET/PDSCH、以及CSI-RS占用不同的OFDM符号。例如，SSB、CORESET/PDSCH、以及CSI-RS占用连续的OFDM符号。如图6-c；CSI-RS和SSB或CORESET/PDSCH时域连续时，CSI-RS占用SSB或CORESET/PDSCH前面或后面相邻的一个或多个连续符号。
Case 3：DRS包括SSB、CORESET、PDSCH。SSB与CORESET频域复用，CORESET与SSB在不同的符号。在一实施例中，DRS还可以包括CSI-RS，图7是本申请实施例的DRS的复用方式三，包括图7-a，图7-b。
SSB与CORESET/PDSCH频域复用，CORESET与SSB在不同的符号。SSB与CORESET时域复用图样对应于3GPP TS38.213-f00定义的SS/PBCH block and control resource set multiplexing pattern 2。SSB与CORESET/PDSCH频域复用有点是可以降低占用时长。
如果DRS中还包括CSI-RS，CSI-RS可以按如下方式发送：
CSI-RS在时域上占用1个、或2个、或4个OFDM符号。端口数为1、2、4、8或更多个端口(最多32个端口)。为降低DRS开销同时满足测量性能，例如CSI-RS端口数为1、或2、或4、或8个端口。例如CSI-RS时域符号数为1个、或2个OFDM符号。
方法一：CSI-RS与CORESET频分复用。CSI-RS在CORESET占用的OFDM符号上发送。CSI-RS在CORESET占用的频域资源上不发送；如图7-b；这里的频域资源可以以PRB为粒度。即CSI-RS在CORESET占用的PRBs上不发送。
方法二：CSI-RS与SSB频分复用。CSI-RS在SSB占用的符号上发送，并且在SSB占用的频域资源不发送CSI-RS。这里的频域资源可以以PRB为粒度。即CSI-RS在SSB占用的PRBs上不发送。例如复用方式与Case1b相同。如图7-b。
方法三：CSI-RS与SSB或CORESET/PDSCH时分复用。CSI-RS与SSB或CORESET/PDSCH占用不同的OFDM符号。例如，CSI-RS与SSB占用连续的OFDM符号。如图7-a；CSI-RS和SSB或CORESET/PDSCH时域连续时，CSI-RS占用SSB或CORESET/PDSCH前面或后面相邻的一个或多个连续符号。
Case 4：DRS包括SSB、CORESET/PDSCH。SSB与CORESET频域复用，CORESET与SSB在相同的符号。在一实施例中，DRS还可以包括CSI-RS，图8是本申请实施例的DRS的复用方式四，包括图8-a，图8-b。
SSB与CORESET/PDSCH频域复用，CORESET与SSB在相同的符号。SSB与CORESET时域复用图样对应于3GPP TS38.213-f00定义的SS/PBCH block and control resource set multiplexing pattern 3。
如果DRS中还包括CSI-RS，CSI-RS可以按如下方式发送：
CSI-RS在时域上占用1个、或2个、或4个OFDM符号。端口数为1、2、4、8或更多个端口(最多32个端口)。为降低DRS开销同时满足测量性能，例如CSI-RS端口数为1、或2、或4、或8个端口。例如CSI-RS时域符号数为1个、或2个OFDM符号。
方法一：CSI-RS与SSB、和/或CORESET/PDSCH频分复用。CSI-RS在SSB或CORESET占用的OFDM符号上发送。CSI-RS在SSB、或CORESET占用的频域资源上不发送；这里的频域资源可以以PRB为粒度。即CSI-RS在SSB、或CORESET占用的PRBs上不发送。如图8-b。
方法二：CSI-RS与SSB或CORESET/PDSCH时分复用。CSI-RS与SSB或CORESET/PDSCH占用不同的OFDM符号。例如，CSI-RS与SSB占用连续的OFDM符号。如图8-a；CSI-RS和SSB或CORESET/PDSCH时域连续时，CSI-RS占用SSB或CORESET/PDSCH前面或后面相邻的一个或多个连续符号。
在本实施例的另一方面，不从DRS角度，仅考虑为了降低LBT次数以及增加发送机会(仅需要执行1次LBT)，配置SSB与其他信号信道一起发送，在SSB和其他信号信道联合发送角度，配置方式包括：方式一、方式二和方式三。
方式一：SSB和CSI-RS联合发送；
其中，SSB与CSI-RS的时频域配置如下：
SSB和CSI-RS在时域复用，SSB与CSI-RS占用的OFDM符号在时域上连续，或者不连续。或，
SSB和CSI-RS在频域复用，CSI-RS在SSB组成信号信道占用的频域资源上不配置或不发送。
方式二：SSB和CORESET/PDSCH联合发送；
其中，SSB和CORESET/PDSCH的时频域配置如下：
SSB和CORESET/PDSCH在时域复用，SSB与CORESET/PDSCH占用的OFDM符号在时域上连续，或者不连续。或，
SSB和CORESET/PDSCH在频域复用。
方式三：SSB、CORESET/PDSCH和CSI-RS联合发送；
其中，SSB、CORESET/PDSCH和CSI-RS的时频域配置如下：
SSB和CORESET/PDSCH在时域复用。CSI-RS与CORESET、或PDSCH频分复用。CSI-RS在CORESET、或PDSCH占用的OFDM符号上发送。CSI-RS在CORESET占用的频域资源上不配置或不发送；或，
SSB和CORESET/PDSCH在时域复用。CSI-RS与SSB频分复用。CSI-RS在SSB占用的OFDM符号上发送。CSI-RS在SSB组成信号信道占用的频域资源不配置或不发送。或，
SSB、CORESET/PDSCH和CSI-RS在时域复用。SSB、CORESET/PDSCH、以及CSI-RS占用的OFDM符号在时域上连续、或不连续。或，
SSB和CORESET/PDSCH在频域复用，采用复用图样2(SSB与CORESET在不同的OFDM符号)。CSI-RS与CORESET频分复用。CSI-RS在CORESET占用的OFDM符号上发送。CSI-RS在CORESET占用的频域资源上不配置或不发送；或，
SSB和CORESET/PDSCH在频域复用，采用复用图样2(SSB与CORESET在不同的OFDM符号)。CSI-RS与SSB频分复用。CSI-RS在SSB占用的OFDM符号上发送，并且在SSB占用的频域资源不配置或不发送CSI-RS。或，
SSB和CORESET/PDSCH在频域复用，采用复用图样2(SSB与CORESET在不同的OFDM符号)。CSI-RS与SSB或CORESET/PDSCH时分复用。CSI-RS与SSB或CORESET/PDSCH占用不同的OFDM符号。CSI-RS与SSB占用OFDM符号在时域连续、或不连续。或，
SSB和CORESET/PDSCH在频域复用，采用复用图样3(CORESET与SSB在相同的OFDM符号)。CSI-RS与SSB、或CORESET频分复用。CSI-RS在SSB、或CORESET占用的OFDM符号上发送。CSI-RS在SSB、或CORESET占用的频域资源上不配置或不发送；或，
SSB和CORESET/PDSCH在频域复用，采用复用图样3(CORESET与SSB在相同的OFDM符号)。CSI-RS与SSB、或CORESET时分复用。CSI-RS与SSB或CORESET占用不同的OFDM符号。CSI-RS与SSB或CORESET占用的OFDM符号在时域连续、或不连续。
上述内容中的复用图样2，对应于3GPP 38.213-f00中定义的SSB与CORESET/PDSCH复用方式pattern 2。上述内容中的复用图样3，对应于3GPP38.213-f00中定义的SSB与CORESET/PDSCH复用方式pattern 3。
本实施方式中的DRS或SSB(不是作为DRS的组成信号)在发送之前可以仅执行一次没有竞争回退窗的快速LBT，即LAA中的CAT 2，例如，采用一个固定时长的侦听间隔，在此侦听时长内，如果信道空闲(侦听到的能量小于或等于门限)，则发送DRS。如果信道忙(侦听到的能量大于或等于门限)，则不发送DRS。
本实施方式中的SSB与其他信号信道联合发送，可以存在以下方法一和方法二。
方法一：SSB与其他信号信道联合发送的LBT方式与SSB单独发送时的LBT方式相同，例如都采用一个无竞争回退窗的固定时长的侦听间隔。
方法二：SSB与其他信号信道联合发送的LBT方式不同于SSB单独发送时的LBT方式，例如，SSB与其他信号信道联合发送的LBT方式为有竞争回退窗的LBT方式。或者，SSB与其他信号信道联合发送也采用一个无竞争回退窗的固定时长的侦听间隔，但此侦听间隔要长于SSB单独发送时的LBT侦听间隔时长。
上述实施方式也适用于DRS与其他信道信号的联合发送，譬如DRS仅包括SSB与CSI-RS，上述方法也适用于DRS与CORESET/PDSCH的联合发送。
本实施方式中，对于DRS内部各组成信号在时域上发送、或SSB与其他信号信道在时域上一起发送，例如DRS各组成信号在时域上连续发送、或SSB与其他信号信道在时域上连续发送。原因是减少LBT次数、增加接入非授权载波的机会以及减少开销。
实施方式三，发现信号或SS/PBCH block的频域发送。
对于非授权载波的发送，欧洲电信标准协会(European Telecommunication Standards Institute，ETSI)规定：占用信道带宽(Occupied Channel Bandwidth，OCB)必须在名义信道带宽的80％到100％之间。在一个信道占用时间(Channel Occupancy Time，COT)内，设备的占用信道带宽可以临时地低于名义信道带宽的80％，但不得小于2MHz。
SSB的OCB与子载波间隔相关，15kHz子载波间隔的SSB OCB为3.6MHz，30kHz子载波间隔的SSB OCB为7.2MHz等。一般来说，系统的名义带宽最小为5MHz，且大部分场景下都要大于5MHz，例如为20MHz，甚至更宽。它们的频域发送相关技术中不满足ETSI OCB的占用要求。
对于发现信号或SSB的频域发送，存在如下方法一至方法六。
方法一：基站发送SSB或发现信号时，在SSB或发现信号的频域空白资源上发送占用信号。这些占用信号可以是有用信号，承载有用信息，如运营商ID或一些系统信息；也可以是无用信号，不承载有用信息，仅仅起到频域占用作用。
方法二：SSB或发现信号在频域上重复发送，在频域上发送一个或多个SSB或发现信号。
方法三：SSB或发现信号在频域上复用CORESET/PDSCH。在频域上发送一个或多个SSB或发现信号以及CORESET/PDSCH。或者，在频域上发送一个或多个SSB或发现信号，但是仅发送一个CORESET/PDSCH。
方法四：SSB或发现信号在频域上复用CSI-RS。CSI-RS在SSB占用的频域资源上不发送。
方法五：采用较大的子载波间隔，或限定发现信号的持续时间(duration)，从时域上降低频域上的影响。
例如：采用较大的子载波间隔。载波频率6GHz以下采用30kHz，载波频率6GHz以上采用240kHz。
又如：限定DRS的duration，例如不能超过4个、或5个、或6个、或7个、或14个OFDM符号等。
方法六：限制SSB或发现信号窗的周期，SSB窗或发现信号窗的周期不能太小，从时域上降低频域上的影响。
例如，相关技术中SSB窗(为half frame，或称为SSB burst set periodicity)的周期为5,10,20,40,80or 160ms。相关技术中5ms的最小周期太小，可以限定DRS或SSB窗的最小周期为20ms或40ms。
实施方式四，发现信号或SS/PBCH block的时域发送(周期发送)。
SSB block burst set相关技术中的周期为5,10,20,40,80or 160ms。每个周期内存在一个half frame窗(或称为SS/PBCH block burst set)，用于SSB的发送。
方法一：限制SSB或发现信号窗的周期，SSB窗或发现信号窗的周期不能太小。
相关技术中SSB窗的最小周期5ms太小，在NR-U中，实际上可能并不需要NR-U SSB burst set采用短周期发送，可以限定DRS或SSB窗的最小周期为20ms或40ms。
原因是：从窗的角度，本身SSB发送已经包含了一个half frame窗。在窗内 可以进行多次机会发送；从DRS or SSB的较高LBT优先级角度(也即SSB LBT优先级较高，则不应太频繁，需要对其他设备fair)，NR-U SSB不适合采用短周期发送。
方法二：SSB窗或发现信号窗的双周期设定。基站给SSB窗或发现信号窗配置两个周期，每个周期都分别有一个取值集合或共用一个取值集合。例如长周期取值集合为{80ms,160ms}，短周期取值集合为{10ms,20ms}。长周期设定为80ms，短周期设定为10ms。双周期设定既可以有效提高SSB或发现信号的发送机会，又不至于发送太频繁，影响到其他设备的接入。
特别对于波束赋形(beamforming)发送SSB的场景，存在多个波束(beam)(e.g.8个波束)，每个SSB对应一个波束。在一个half frame内，当一个SSB 0对应某个beam x竞争信道失败后，而其他SSB还需要用于其他波束的发送，不适用于SSB 0的发送。Half frame留给SSB 0发送的剩余机会并不多。5ms中只有最后少量时隙没有定义SSB。但是8个波束都有可能利用这些时隙再次尝试发送SSB。
这种情况下，长周期会导致SSB或DRS较难获取发送机会，从公平共存角度也不适合采用短周期发送SSB或DRS。因此，SSB窗或发现信号窗可以采取双周期设定。
双周期设定方法包括两种子方式。
子方式一：固定的长周期和短周期。
基站在每个固定的长周期的SSB窗或发现信号窗都尝试发送SSB或发现信号，只有在长周期SSB窗或发现信号窗发送SSB或发现信号失败时，基站才会按照短周期来再此尝试发送SSB或发现信号。一旦成功，则跳到下个长周期SSB窗或发现信号窗，如果失败，继续按照短周期来尝试发送SSB或发现信号。
下述子帧仅表示一个时间粒度的例子，同样适用于时隙、帧、小时隙等时间粒度。
根据设定的长周期，在长周期的起始子帧t0或起始子帧t0前一子帧竞争信道，
A.如果在子帧t0竞争信道成功，则发送信号/数据。下一个竞争信道的子帧t1为本子帧序号加上所述长周期的子帧。
B.如果在子帧t0竞争信道失败，下一个竞争信道的子帧t1为本子帧序号加上所述短周期的子帧。
B.1如果在子帧t1竞争信道成功，下一个竞争信道的子帧t2为下一个长周期的起始子帧或起始子帧前一子帧。下一个长周期的起始子帧与本子帧不一定是长周期关系。下一个长周期的起始子帧等于上一个长周期的起始子帧加上所述长周期的子帧。
B.2如果在子帧t1竞争信道失败，下一个竞争信道的子帧t2为本子帧序号加上所述短周期的子帧。
举例如下，假设偏移为0，
长周期SS/PBCH block burst set的起始子帧为子帧0、子帧80、子帧160、子帧240等。
短周期SS/PBCH block burst set的起始子帧为子帧0、子帧10、子帧20、子帧30等。
A.如果设备在子帧0竞争信道成功，下次则在子帧80竞争信道(子帧0下一个固定的长周期窗所在位置为子帧80)。
B.如果设备在子帧0竞争信道失败，下次则在子帧10竞争信道(子帧10＝子帧0+短周期10ms)。
B.1如果设备在子帧10竞争信道成功，下次则在子帧80竞争信道(子帧10下一个固定的长周期窗所在位置为子帧80)。
B.2如果设备在子帧10竞争信道失败，下次则在子帧20竞争信道(子帧20＝子帧10+短周期10ms)。
子方式二：灵活的长周期和短周期。
基站不一定在每个固定的长周期的SSB窗或发现信号窗都尝试发送SSB或发现信号。基站无论在长周期还是短周期的SSB或发现信号窗发送SSB或发现信号成功，下一个发送SSB或发现信号窗的位置都等于现在的位置加上长周期。如果失败，则按照短周期来尝试发送SSB或发现信号。
下述子帧仅表示一个时间粒度的例子，同样适用于时隙、帧、小时隙等时间粒度。
在长周期或短周期的起始子帧t0或起始子帧t0前一子帧竞争信道，
A.如果在子帧t0竞争信道成功，则发送信号/数据。下一个竞争信道的子帧t1为本子帧序号加上所述长周期的子帧。
B.如果在子帧t0竞争信道失败，下一个竞争信道的子帧t1为本子帧序号加上所述短周期的子帧。
B.1如果在子帧t1竞争信道成功，下一个竞争信道的子帧t2为本子帧序号加上所述长周期的子帧。
B.2如果在子帧t1竞争信道失败，下一个竞争信道的子帧t2为本子帧序号加上所述短周期的子帧。
举例如下，假设偏移为0，
长周期和短周期的SS/PBCH block burst set的起始子帧为子帧0。
A.如果设备在子帧0竞争信道成功，下次则在子帧80竞争信道(子帧80＝子帧0+长周期80ms)。
B.如果设备在子帧0竞争信道失败，下次则在子帧10竞争信道(子帧10＝子帧0+短周期10ms)。
B.1如果设备在子帧10竞争信道成功，下次则在子帧90竞争信道(子帧90＝子帧10+长周期80ms)。
B.2如果设备在子帧10竞争信道失败，下次则在子帧20竞争信道(子帧20＝子帧10+短周期10ms)。
方法三：在一个SSB窗或发现信号窗的周期内存在多个SSB窗或发现信号窗(或称为SSB burst set，或DRS burst set)。这些set或窗之间可以是连续的，也可以是不连续的，也可以在周期内等间隔或呈子周期分布。例如，周期为80ms，该周期内存在多个SSB burst set。例如包含2个set。分别位于：子帧0-子帧4、子帧5-子帧9。Set之间是连续的；或者，分别位于：子帧0-子帧4、子帧10-子帧14；或者，分别位于：子帧0-子帧4、子帧40-子帧44，在80ms内呈等间隔或子周期分布。SSB index i在这些set中可以仅发1次(发送成功后，就跳到下个周期)，也可以发多次(每个set中都尝试发送)。
实施方式五，发现信号或SS/PBCH block在窗内的发送。
SSB block burst set相关技术中的周期为5,10,20,40,80or 160ms。每个周期内存在一个half frame窗(或称为SS/PBCH block burst set)，用于SSB的发送。
在half frame窗内，载波频率小于等于3GHz，L＝4，即存在4个candidate SSB。载波频率大于3GHz但小于等于6GHz，L＝8，即存在8个备选SSB(candidate SSB)。载波频率大于6GHz，L＝64，即存在64个candidate SSB。
为了提高SSB或发现信号的发送机会，存在如下方法一：
方法一：扩大窗长(或扩大SSB burst set长度)，例如由half frame变为frame。每个窗或每个SSB burst set内包含更多个SSB或DRS。
特别是对于波束赋形发送SSB的场景，存在多个波束(例如8个波束)，载波频率大于3GHz但小于等于6GHz时，SSB的个数L＝8。每个SSB对应一个波束。
在一个half frame内，当一个SSB 0对应某个beam x竞争信道失败后，而其他SSB还需要用于其他波束的发送，不适用用于SSB 0的发送。Half frame留给SSB 0发送的剩余机会并不多，例如对于L＝8，子载波间隔为15kHz，5ms中只有最后1ms没有定义。但是8个波束都有可能利用这1ms再次尝试发送SSB。
因此，可以扩大窗长，或扩大SSB set的长度。例如由half frame变为frame。
一个窗内存在更多个candidate SSB。例如，在frame窗内，载波频率小于等于3GHz，L＝4*2，即存在8个candidate SSB。载波频率大于3GHz但小于等于6GHz，L＝8*2，即存在16个candidate SSB。载波频率大于6GHz，L＝64*2，即存在128个candidate SSB。在窗内，存在多个candidate SSB对应一个波束。
方法二：当设备在准备发送备选SSB index i或DRS i之前，竞争信道失败，发送SSB index i或DRS i失败。设备可以在窗内接下来的任意一个备选SSB或限定的备选SSB位置前竞争信道，再次尝试发送SSB或DRS。从UE角度，UE会假设SSB or DRS会出现在窗内(e.g.Half frame)的任何一个备选SSB位置上、或限定的一个或多个备选SSB或DRS位置上。
例如，对于非波束赋形发送SSB场景，窗内L个备选SSB都可以用于发送SSB。假设SSB index 0竞争信道失败，设备可以在SSB index 1之前竞争信道，再此尝试发送SSB。从用户终端(User Equipment，UE)角度，UE会假设SSB or DRS会出现在窗内(e.g.Half frame)的任何一个备选SSB位置上。
对于波束赋形发送SSB场景，假设SSB index 0对应beam0，SSB index2对应beam1，SSB index4对应beam2。如果SSB index0发送失败，则可以在SSB index1位置处，竞争信道，尝试发送SSB。如果再次失败，则不能在SSB index2处再次竞争信道。也即，窗内存在多个备选SSB对应于一个波束的情况，则基站可以在这些备选SSB位置尝试发送SSB，UE会假设这些限定的备选SSB中任意一个备选SSB位置上都有可能存在SSB。从UE角度，UE会假设SSB or DRS会出现在窗内(e.g.Half frame)限定的一个或多个备选SSB或DRS位置上。
或者，设备也可以在SSB index2处再次竞争信道，尝试在beam0上发送SSB。原因是SSB index2位置处beam1有可能忙，而beam0则空闲。所以，进一步， 可以定义如下：
主备选SSB：主SSB具备高优先级。
辅备选SSB：辅SSB具备次优先级。
或者，定义如下：
主波束：当主波束信道侦听结果为忙时，才会尝试在辅波束上发送SSB。如果主波束信道侦听结果为闲，则优先在主波束上发送相应的SSB。
辅波束：当主波束信道侦听结果为忙时，才会尝试在辅波束上发送SSB。如果主波束信道侦听结果为闲，则优先在主波束上发送相应的SSB。此时，在辅波束上发送SSB失败。
例如，SSB index i分别对应beam i(i＝0,1,2，...,7)。在SSB index j处，SSB index j为主备选SSB，或者beam j为主beam。SSB index 0发送前，在beam0内竞争信道失败。SSB index 1发送前，如果在beam 1(主beam)竞争信道成功，则在beam 1发送SSB index1；如果在beam 1竞争信道失败，而在beam 0(辅beam)竞争信道成功，则在beam 0发送SSB。
从UE角度，UE会假设SSB or DRS会出现在窗内(e.g.Half frame)的任何一个备选SSB位置上。
在一实施例中，在一个备选SSB位置上，可以在两个、或两个波束上同时发送SSB。
例如，例如，SSB index i分别对应beam i(i＝0,1,2，...,7)。SSB index 0发送前，在beam0内竞争信道失败。SSB index 1发送前，如果在beam 1竞争信道成功，而在beam 0(辅beam)也竞争信道成功，那么可以在beam 0和beam1同时发送SSB。
从UE角度，UE会假设SSB or DRS会出现在窗内(e.g.Half frame)的任何一个备选SSB位置上。
这个时候涉及到SSB j编号问题、速率匹配问题、UE的认知问题。如果按照编号index 0发送，UE对beam的理解没有问题，但是定时同步以及速率匹配存在问题；反之，如果按照编号index 1发送，定时同步以及速率匹配没有问题，但是UE对beam的理解会有问题。
方法三：窗内任意一个时隙(slot)上都配置可以发送SSB的备选位置。现有技术中，half-frame窗内仅部分子帧或时隙上分布备选SSB的位置。SSB可以在half frame窗内的任何一个时隙发送。从UE角度，UE会假设SSB or DRS会 出现在half frame窗内的任何一个时隙。
例如，对于38.213-f00中的Case A，当载波频域小于等于3GHz时，子载波间隔为15kHz，备选SSB数目L＝4，图9是本申请实施例在窗内发送发现信号或SS/PBCH block的示意图，如图9所示，相关技术中仅half frame窗内前2ms存在备选SSB，half frame窗内后3ms也可以定义备选SSB。每ms或每时隙内的SSB图样可以和现有SSB相同。
例如，对于38.213-f00中的Case A，载波频域大于3GHz但小于等于6GHz，子载波间隔为15kHz，备选SSB数目L＝8，如图9所示，相关技术中仅half frame窗内前4ms存在备选SSB，half frame窗内后1ms也可以定义备选SSB。每ms或每slot内的SSB图样可以和现有SSB相同。
例如，对于38.213-f00中的Case B和/或Case C，载波频域小于等于3GHz时，子载波间隔为30kHz，备选SSB数目L＝4，如图9所示，相关技术中仅half frame窗内前1ms存在备选SSB，half frame窗内后4ms也可以定义备选SSB。每ms或每时隙内的SSB图样可以和现有SSB相同。
例如，对于38.213-f00中的Case B和/或Case C，载波频域大于3GHz但小于等于6GHz，子载波间隔为30kHz，备选SSB数目L＝8，如图9所示，相关技术中仅half frame窗内前2ms存在备选SSB，half frame窗内后3ms也可以定义备选SSB。每ms或每时隙内的SSB图样可以和现有SSB相同。
例如，对于38.213-f00中的Case D和/或Case E，载波频域大于6GHz，子载波间隔为120kHz/240KHz，备选SSB数目L＝64，如图9所示，在空白部分没有定义SSB的时隙定义新的备选SSB。特别的，针对Case E，在half frame窗的后面空白部分没有定义SSB的位置可以定义新的64个备选SSB。
实施方式六，发现信号或SS/PBCH block的序列生成。
相关技术中，38.213-f00中定义的SSB的indexing方式如下：
当载波频域小于等于3GHz，half frame窗内，SSB的最大数目为4，编号依次为SSB index 0-3；
15kHz占用half frame窗内2ms(前2个时隙)。30kHz占用half frame窗内1ms(前2个时隙)。
当载波频域大于3GHz但小于等于6GHz，half frame窗内，SSB的最大数目为8，编号依次为SSB index 0-7；
15kHz占用half frame窗内4ms(前4个时隙)。30kHz占用half frame窗内 2ms(前4个时隙)。
当载波频域大于6GHz，half frame窗内，SSB的最大数目为64，编号依次为SSB index 0-63；
120kHz占用half frame窗内约5ms。30kHz占用half frame窗内约2.5ms。
Case 1.对于上述实施方式内中，窗内新增加的备选SSB如何编号
对于新增加的备选SSB编号，可以采取如下方法一至方法三的形式。
方法一、新增加的备选SSB编号接着已有的备选SSB编号继续连续编号；
例如，当载波频域小于等于3GHz，half frame窗内，SSB的最大数目为4，编号依次为SSB index 0-3；新增加的SSB编号为SSB index 4-x(对于15kHz)；新增加的SSB编号依次为SSB index 4-y(对于30kHz)；x和y是大于等于4的整数。例如，x＝9，y＝19。
当载波频域大于3GHz但小于等于6GHz，half frame窗内，SSB的最大数目为8，编号依次为SSB index 0-7；
新增加的SSB编号为SSB index 8-x(对于15kHz)；新增加的SSB编号依次为SSB index 8-y(对于30kHz)；x和y是大于等于8的整数。例如，x＝9，y＝19；
当载波频域大于6GHz，half frame窗内，SSB的最大数目为64，编号依次为SSB index 0-63；
120kHz在窗内可以新增x个备选SSB。新增加的SSB编号依次为SSB index64-(64+x-1)。
240kHz在窗内可以新增y个备选SSB。新增加的SSB编号依次为SSB index64-(64+y-1)。
x和y是大于等于1的整数。例如，y＝64；
这种编号方式，优点是定时同步以及速率匹配没有问题，但是需要明确和beam的对应关系。
方法二、新增加的备选SSB编号依次重复之前已有的备选SSB编号。
例如，当载波频域小于等于3GHz，half frame窗内，SSB的最大数目为4，编号依次为SSB index 0-3。对于15kHz子载波间隔，占用half frame的前2ms；对于30kHz子载波间隔，占用half frame的前1ms。
在half frame的第3ms和第4ms新增加的SSB编号依次为SSB index 0-3(对于15kHz)；在half frame的第2ms新增加的SSB编号为SSB index 0-3(对于30kHz)；依次类推。
又如，当载波频域大于3GHz但小于等于6GHz，half frame窗内，SSB的最大数目为8，编号依次为SSB index 0-7。对于15kHz子载波间隔，占用half frame的前4ms；对于30kHz子载波间隔，占用half frame的前2ms。
在half frame的第5ms新增加的SSB编号依次为SSB index 0-1(对于15kHz)，如果窗长大于half frame，这编号可以依次增加；在half frame的第3ms和第4ms新增加的SSB编号为SSB index 0-7(对于30kHz)；依次类推。
这种编号方式，UE对beam的理解没有问题，但是定时同步以及速率匹配存在问题。
方法三、SSB编号范围不变，仍受限于L(当载波频域小于等于3GHz，窗内SSB的最大数目L为4；当载波频域大于3GHz但小于等于6GHz，窗内SSB的最大数目L为8；当载波频域大于6GHz，窗内SSB的最大数目L为64)。新增加的备选SSB编号由所待发原始备选SSB的编号决定。在一实施例中，新增加的备选SSB编号与所待发的原始备选SSB编号相同。
例如，对于载波频率大于3GHz但小于等于6GHz，原始备选SSB范围为SSB 0-7。设备在发送原始SSB 0时，竞争信道失败。尝试在第9个备选SSB(新增加的SSB位置发送)位置前竞争信道，如果竞争信道成功。第9个备选SSB发送时采用SSB 0的编号。PBCH关联的DMRS序列生成时使用SSB 0的编号进行生成。
这种编号方式，UE对波束的理解没有问题，但是定时同步以及速率匹配存在问题；如何来进行时隙定时。原来根据单频网络(Single Frequency Network，SFN)可以确定SFN号，根据half frame判断前半帧还是后半帧，根据SSB index可以判断时隙号以及时隙内的符号定时。
Case 2.对于发送SSB i时，竞争信道失败，在其他备选SSB位置处竞争信道成功，所发SSB如何编号，可以采取如下形式：
如果某个SSB index i由于竞争信道失败导致发送失败，可以在窗内其他编号的SSB发送位置上发送，例如在SSB index j位置上竞争信道发送SSB。这个时候在其他编号的SSB发送位置上发送的SSB编号采用index i还是原始编号index j，在此使用方法一和方法二进行说明。
方法一、SSB index i对应beam x，在原始编号SSB index i处竞争beam x失败，从而发送SSB index i失败。在原始编号SSB index j上通过beam x发送的SSB采用编号index i；
这种方式定时同步存在问题。但是UE对beam的理解没有问题。
例如对于38.213-f00中SSB Case A，SSB index 0初始符号原应该为符号2，SSB index 1初始符号原应该为符号8。如果SSB index0由于竞争信道失败而未发送成功，在SSB index 1位置之前竞争信道成功，发送SSB。该SSB使用index0还是index1，假设使用index 0，UE接收到SSB会，会把符号8当做符号2，从而符号或时隙同步出错。
速率匹配问题：速率匹配仍按照之前的进行，问题不大。例如8比特(bit)，依次表示SSB index0–index7.如果SSB只在SSB index 1位置发送成功，则在SSB index1对应的bit位置置1。
方法二、SSB index i对应beam x，在原始编号SSB index i处竞争beam x失败，从而发送SSB index i失败。在原始编号SSB index j上通过beam x发送的SSB采用编号index j；
即采用原始编号，例如该位置为SSB index j，则使用j的编号。
存在问题：定时同步和速率匹配都没有问题，但是会导致UE对波束的认知问题。
可能会导致UE认为SSB index1发送的SSB是由SSB index1相对应的波束发送的，而实际上SSB index1发送的SSB是由SSB index0对应的波束，或全向发送的。
非波束赋形发送SSB，则问题不大。
通过本实施例给出的SS/PBCH block或发现信号的图样设计和/或发送方式，能够有效提高在非授权载波场景SS/PBCH block或发现信号的发送机会，从而保证小区搜索、同步或测量等功能。
实施例4
本申请的实施例还提供了一种存储介质，该存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一实施例中，上述存储介质可以被设置为存储用于执行以下步骤S1和步骤S2的计算机程序：
在步骤S1中，配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量。
在步骤S2中，将所述信号信道发送给终端。
在一实施例中，上述存储介质可以包括但不限于：U盘、只读存储器 (Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本申请的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一实施例中，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
在一实施例中，上述处理器可以被设置为通过计算机程序执行以下步骤S1和步骤S2。
在步骤S1中，配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量。
在步骤S2中，将所述信号信道发送给终端。
本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本申请的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本申请不限制于任何特定的硬件和软件结合。

Claims (17)

  1. 一种信号信道的发送方法，包括：
    配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量；
    将所述信号信道发送给终端。
  2. 根据权利要求1所述的方法，其中，所述信号信道包括以下至少之一：同步信号物理广播信道块SSB和发现信号DRS。
  3. 根据权利要求2所述的方法，其中，所述DRS包括：同步信号物理广播信道块SSB，以及以下至少之一：控制资源集CORESET，物理下行共享信道PDSCH，信道状态信息参考信号CSI-RS，相位追踪参考信号PTRS，探测参考信号SRS，以及寻呼消息Paging。
  4. 根据权利要求3所述的方法，其中，配置所述DRS包括：
    配置所述DRS使所述DRS包括：SSB和CSI-RS；其中，所述SSB和所述CSI-RS占用不同的正交频分复用OFDM符号，所述SSB与所述CSI-RS占用的OFDM符号在时域上连续，或者不连续；或，所述CSI-RS在所述SSB占用的OFDM符号上发送，所述CSI-RS在所述SSB组成信号信道占用的频域资源上不配置或不发送。
  5. 根据权利要求3所述的方法，其中，配置DRS包括：
    配置所述DRS使所述DRS包括：SSB和CORESET/PDSCH；
    其中，所述SSB和所述CORESET/PDSCH在时域复用，所述SSB与所述CORESET/PDSCH占用的OFDM符号在时域上连续，或者不连续；或，所述SSB和所述CORESET/PDSCH在频域复用。
  6. 根据权利要求3所述的方法，其中，配置DRS包括：
    配置所述DRS使所述DRS包括：SSB、CORESET/PDSCH和CSI-RS；
    其中，所述SSB、所述CORESET/PDSCH和所述CSI-RS采用以下至少之一配置：
    SSB和CORESET/PDSCH在时域复用，CSI-RS与CORESET/PDSCH频分复用，CSI-RS在CORESET/PDSCH占用的OFDM符号上发送，CSI-RS在CORESET占用的频域资源上不配置或不发送；
    SSB和CORESET/PDSCH在时域复用，CSI-RS与SSB频分复用，CSI-RS在SSB占用的OFDM符号上发送，CSI-RS在SSB组成信号信道占用的频域资源不配置或不发送；
    SSB、CORESET/PDSCH和CSI-RS在时域复用，SSB、CORESET/PDSCH、 以及CSI-RS占用的OFDM符号在时域上连续、或不连续、或其中至少两个信号信道占用的OFDM符号连续；
    SSB和CORESET/PDSCH在频域复用，采用第二复用图样，其中，所述第二复用图样中SSB与CORESET在不同的OFDM符号，CSI-RS与CORESET频分复用，CSI-RS在CORESET占用的OFDM符号上发送，CSI-RS在CORESET占用的频域资源上不配置或不发送；
    SSB和CORESET/PDSCH在频域复用，采用第二复用图样，CSI-RS与SSB频分复用，CSI-RS在SSB占用的OFDM符号上发送；CSI-RS在SSB组成信号信道占用的频域资源不配置或不发送；
    SSB和CORESET/PDSCH在频域复用，采用第二复用图样，CSI-RS与SSB或CORESET/PDSCH时分复用，CSI-RS与SSB或CORESET/PDSCH占用不同的OFDM符号，CSI-RS与SSB或CORESET/PDSCH占用的OFDM符号在时域连续、或不连续；
    SSB和CORESET/PDSCH在频域复用，采用第三复用图样，其中，所述第三复用图样中CORESET与SSB在相同的OFDM符号，CSI-RS与SSB、或CORESET频分复用，CSI-RS在SSB、或CORESET占用的OFDM符号上发送，CSI-RS在SSB、或CORESET占用的频域资源上不配置或不发送；
    SSB和CORESET/PDSCH在频域复用，采用第三复用图样，CSI-RS与SSB、或CORESET时分复用，CSI-RS与SSB或CORESET占用不同的OFDM符号，CSI-RS与SSB或CORESET占用的OFDM符号在时域连续、或不连续。
  7. 根据权利要求2所述的方法，其中，将所述信号信道发送给终端包括以下至少之一：
    将所述信号信道在频域上发送给终端；
    将所述信号信道在时域上发送给终端。
  8. 根据权利要求7所述的方法，其中，将所述信号信道在频域上发送给终端包括以下至少之一：
    在频域上发送所述信号信道，以及在所述频域的空白资源上发送占用信号；
    在频域上发送以下至少之一：至少一个所述信号信道、和至少一个CORESET/PDSCH；
    在频域上发送所述信号信道，以及CSI-RS，在所述信号信道的组成信号信道占用的频域资源上禁止发送或禁止配置所述CSI-RS；
    采用大于预设子载波间隔的子载波间隔在频域上发送所述信号信道的组成信号信道；其中，如果载波频率小于或等于6GHz，所述预设子载波间隔为15kHz，如果载波频率大于或等于6GHz，所述预设子载波间隔为60kHz；
    采用大于预设时间的时间窗周期在频域上发送所述DRS，其中，所述预设时间为5ms。
  9. 根据权利要求7所述的方法，其中，将所述信号信道在时域上发送给终端包括以下至少之一：
    采用大于预设子载波间隔的子载波间隔在时域上发送所述信号信道的组成信号信道；其中，如果载波频率小于或等于6GHz，所述预设子载波间隔为15kHz，如果载波频率大于或等于6GHz，所述预设子载波间隔为60kHz；
    采用大于预设时间的时间窗周期在时域上发送所述信号信道的组成信号信道，其中，所述预设时间为5ms；
    采用第一时间窗和第二时间窗在时域上将所述信号信道发送给终端，或，采用给时间窗配置两种周期在时域上将所述信号信道的组成信号信道发送给终端；
    采用时间窗在时域上发送所述信号信道的组成信号信道，其中，一个周期内包括多个时间窗；
    采用在一个备选信号信道的位置上且在时域上同时发送多个备选信号信道，所述多个备选信号信道的编号可以相同、或不同。
  10. 根据权利要求9所述的方法，其中，采用第一时间窗和第二时间窗将所述信号信道发送给终端包括以下之一：
    采用第一时间窗将所述信号信道发送给终端，在所述第一时间窗发送所述信号信道失败时，采用所述第二时间窗将所述信号信道发送给终端，或，在所述第一时间窗发送所述信号信道成功时，继续使用所述第一时间窗；
    采用第一时间窗或第二时间窗将所述信号信道发送给终端，在所述信号信道被发送成功时，将当前发送窗的下一个时间窗设置为当前时间窗加上所述第一时间窗的周期；在所述信号信道被发送失败时，采用所述第二时间窗将所述信号信道发送给终端。
  11. 根据权利要求2所述的方法，在将所述信号信道在时间窗内发送给终端之前，还包括：
    确定用于发送所述信号信道的指定时间窗。
  12. 根据权利要求11所述的方法，其中，确定用于发送所述信号信道的指定时间窗包括以下至少之一：
    所述指定时间窗等于原始时间窗，或通过扩大所述原始时间窗的时间长度得到，其中，所述原始时间窗为半个帧时长5ms；
    在指定时间窗的任意一个所述信号信道的备选位置上发送所述信号信道；
    在指定时间窗的任意一个时间单元上都配置至少一个用于发送所述信号信道的备选位置，其中，所述时间单元包括以下任意之一：帧、子帧、时隙、以及OFDM符号；
    在指定时间窗内没有定义备选SSB的时间单元上定义新的备选SSB；
    在指定时间窗的第一位置竞选信道失败时，将所述第一位置之后的第二位置设置为用于发送所述DRS的备选位置。
  13. 根据权利要求12所述的方法，其中，在所述指定时间窗内新增加备选SSB时，所述新增加备选SSB的SSB编号采用以下规则之一进行编号：接着当前备选SSB的最大编号连续编号；重复之前已有的备选SSB编号；由准备发送的SSB的关联关系决定编号；接着所述第一位置的编号连续编号；与所述第一位置的编号相同，编号与预配置编号相同。
  14. 根据权利要求12所述的方法，其中，在发送SSB i时，竞争信道失败，在其他备选SSB j位置处竞争信道成功，所述发送SSB采用以下规则之一进行编号：与原始编号相同，采用SSB j的编号；与原始编号不同，采用SSB i的编号；如果在备选SSB j位置同时发送两个SSB，分别采用SSB i的编号和SSB j的编号。
  15. 一种基站，包括：
    配置模块，设置为配置一种信号信道，其中，所述信号信道用于小区搜索、同步和测量；
    发送模块，设置为将所述信号信道发送给终端。
  16. 一种存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至14任一项中所述的方法。
  17. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至14任一项中所述的方法。
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