WO2019238111A1 - 同步信号块的传输方法、网络设备及终端 - Google Patents

同步信号块的传输方法、网络设备及终端 Download PDF

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Publication number
WO2019238111A1
WO2019238111A1 PCT/CN2019/091213 CN2019091213W WO2019238111A1 WO 2019238111 A1 WO2019238111 A1 WO 2019238111A1 CN 2019091213 W CN2019091213 W CN 2019091213W WO 2019238111 A1 WO2019238111 A1 WO 2019238111A1
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WIPO (PCT)
Prior art keywords
synchronization signal
signal block
time domain
domain transmission
transmission position
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Ceased
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PCT/CN2019/091213
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English (en)
French (fr)
Inventor
吴凯
刘思綦
潘学明
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to EP19818845.0A priority Critical patent/EP3817463A4/en
Priority to KR1020217000679A priority patent/KR102509011B1/ko
Priority to JP2020568400A priority patent/JP7089070B2/ja
Publication of WO2019238111A1 publication Critical patent/WO2019238111A1/zh
Priority to US17/106,429 priority patent/US11601902B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • 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 signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • 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
    • 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
    • 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
    • H04W72/20—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
    • 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
    • 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) or DMT

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method, a network device, and a terminal for transmitting a synchronization signal block.
  • SSB Synchronization Signal Block and PBCH Block
  • one SS burst can contain up to 4 SSBs
  • an SS burst can contain up to 8 SSBs
  • a maximum of 64 SSBs can be included in an SS burst.
  • the NR system supports different numerical settings (Numerology), different Numerology corresponds to different signal subcarrier intervals, and SSB symbols and other symbols can use different Numerology and multiplex.
  • other symbols refer to symbols that can be multiplexed with SSB symbols, such as: symbols for uplink control, symbols for downlink control, symbols for guard interval, symbols for data transmission, and the like.
  • the possible positions of the SSB in a slot under different Numerology are different, and the position of the slot where the SSB is located in the 5ms transmission window may also be different.
  • the sending node (base station or terminal) needs to make clear channel access (clear channel access, CCA) / extended channel clear estimation (eCCA) listening channel, that is, energy detection (ED).
  • CCA clear channel access
  • eCCA extended channel clear estimation
  • ED energy detection
  • the channel is judged to be empty before transmission can be started.
  • this contention-based access method causes uncertainty in the channel's available time.
  • the position of each SSB in a 5ms half radio frame is fixed.
  • network equipment needs to listen on the corresponding frequency range.
  • the channel is not empty in a certain period of time, which results in the inability to perform downlink transmission in a subsequent period of time, which may cause the possible transmission positions of some SSBs to have been missed, resulting in that these SSBs cannot be successfully transmitted.
  • Embodiments of the present disclosure provide a method, a network device, and a terminal for transmitting a synchronization signal block, so as to solve the transmission problem of the synchronization signal block in an unlicensed frequency band.
  • an embodiment of the present disclosure provides a method for transmitting a synchronization signal block, which is applied to a network device side and includes:
  • Target time domain transmission position of the first synchronization signal block within the downlink signal sending time; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block;
  • an embodiment of the present disclosure further provides a network device, including:
  • a first processing module configured to determine a target time domain transmission position of a first synchronization signal block in a downlink signal sending time; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block One;
  • the sending module is configured to send a first synchronization signal block through a target time domain transmission position.
  • an embodiment of the present disclosure provides a network device.
  • the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the processor implements the foregoing synchronization signal block when the computer program is executed. Steps of the transmission method.
  • an embodiment of the present disclosure provides a method for transmitting a synchronization signal block, which is applied to a terminal side and includes:
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position
  • the target time domain transmission position of the first synchronization signal block is determined according to the indication information; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block.
  • an embodiment of the present disclosure provides a terminal, including:
  • a receiving module configured to receive a first synchronization signal block; wherein the first synchronization signal block carries instruction information for indicating a target time-domain transmission position;
  • the second processing module is configured to determine a target time domain transmission position of the first synchronization signal block according to the instruction information; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block.
  • an embodiment of the present disclosure further provides a terminal.
  • the terminal includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the computer program is executed by the processor, the foregoing synchronization signal block is implemented. Steps of the transmission method.
  • an embodiment of the present disclosure provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements steps of a method for transmitting a synchronization signal block of the network device, Alternatively, the steps of the method for transmitting a synchronization signal block of the terminal are implemented.
  • the embodiments of the present disclosure can ensure that the synchronization signal block is flexibly transmitted at different time points in a time period, avoiding the problem that the synchronization signal block cannot be transmitted due to missing the transmission time of the synchronization signal block, thereby improving communication Effectiveness.
  • FIG. 1 shows a structural block diagram of a mobile communication system applicable to the implementation of the present disclosure
  • FIG. 2 is a schematic flowchart of a method for transmitting a synchronization signal block on a network device side according to an embodiment of the present disclosure
  • FIG. 3 shows a first resource mapping diagram of a default time domain transmission position of a synchronization signal block in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of resource mapping of a candidate time domain transmission position of a synchronization signal block in the first embodiment of the present disclosure
  • FIG. 5 shows a second schematic diagram of resource mapping of a default time domain transmission position of a synchronization signal block in an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of resource mapping of a candidate time domain transmission position of a synchronization signal block in the second embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a module of a network device according to an embodiment of the present disclosure.
  • FIG. 8 shows a block diagram of a network device according to an embodiment of the present disclosure
  • FIG. 9 is a schematic flowchart of a method for transmitting a synchronization signal block on a terminal side according to an embodiment of the present disclosure
  • FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 11 shows a block diagram of a terminal provided by an embodiment of the present disclosure.
  • LTE Long Time Evolution
  • LTE-A LTE-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Single-carrier
  • system and “network” are often used interchangeably.
  • a CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like.
  • UTRA includes Wideband CDMA (Wideband Code Division Multiple Access) and other CDMA variants.
  • the TDMA system can implement a radio technology such as Global System for Mobile (Communication, GSM).
  • OFDMA system can implement such as Ultra Mobile Broadband (UMB), Evolution UTRA (Evolution-UTRA, E-UTRA), IEEE802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM And other radio technologies.
  • UMB Ultra Mobile Broadband
  • Evolution-UTRA Evolution UTRA
  • E-UTRA Evolution UTRA
  • IEEE802.11 Wi-Fi
  • IEEE 802.16 WiMAX
  • IEEE 802.20 Flash-OFDM And other radio technologies.
  • UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS).
  • LTE and more advanced LTE (such as LTE-A) are new UMTS versions using E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described herein can be used for both the systems and radio technologies mentioned above as well as other systems and radio technologies.
  • the following description describes the NR system for example purposes, and uses NR terminology in most of the description below, taking the NR system as an example, although these techniques can also be applied to applications other than NR system applications. Those skilled in the art can understand that the wording does not limit the scope of protection of the present disclosure.
  • FIG. 1 is a structural block diagram of a wireless communication system applicable to an embodiment of the present disclosure.
  • the wireless communication system includes a terminal 11 and a network device 12.
  • the terminal 11 may also be called a terminal device or a user terminal (User), and the terminal 11 may be a mobile phone, a tablet computer (laptop computer), a laptop computer (laptop computer), or a personal digital assistant (Personal Digital Assistant).
  • PDA mobile Internet device
  • MID mobile Internet Device
  • Wearable device Wearable Device
  • terminal equipment such as vehicle-mounted equipment
  • the network device 12 may be a base station or a core network, where the above base stations may be 5G and later versions of base stations (for example, gNB, 5G, NR, NB, etc.), or base stations in other communication systems (for example, eNB, WLAN access point, Or other access points, etc.), where the base station can be referred to as Node B, evolved Node B, access point, Base Transceiver Station (BTS), radio base station, radio transceiver, basic service set (Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN access point, WiFi node, or in the field
  • BSS Basic Service Set
  • ESS Extended Service Set
  • eNB Evolved Node B
  • the base station is not limited to a specific technical vocabulary. It should be noted that, in the embodiment of the present disclosure, only the base station in the NR system is taken as an example, but the base station is
  • the base station may communicate with the terminal 11 under the control of a base station controller.
  • the base station controller may be part of the core network or some base stations.
  • Some base stations can communicate control information or user data with the core network through the backhaul.
  • some of these base stations may communicate with each other directly or indirectly through a backhaul link, which may be a wired or wireless communication link.
  • Wireless communication systems can support operation on multiple carriers (waveform signals of different frequencies).
  • Multi-carrier transmitters can transmit modulated signals on these multiple carriers simultaneously.
  • each communication link may be a multi-carrier signal modulated according to various radio technologies.
  • Each modulated signal can be sent on a different carrier and can carry control information (eg, reference signals, control channels, etc.), overhead information, data, and so on.
  • the base station may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that constitute only a part of the coverage area.
  • the wireless communication system may include different types of base stations (for example, a macro base station, a pico base station, or a pico base station). Base stations can also utilize different radio technologies, such as cellular or WLAN radio access technologies. Base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including the coverage areas of the same or different types of base stations, the coverage areas using the same or different radio technologies, or the coverage areas belonging to the same or different access networks) may overlap.
  • the communication link in the wireless communication system may include an uplink for carrying uplink (Uplink, UL) transmission (for example, from the terminal 11 to the network device 12), or a bearer for downlink (Downlink, DL) Downlink for transmission (for example, from network device 12 to terminal 11).
  • UL transmissions may also be referred to as reverse link transmissions, and DL transmissions may also be referred to as forward link transmissions.
  • Downlink transmissions can be performed using licensed frequency bands, unlicensed frequency bands, or both.
  • uplink transmissions can be performed using licensed frequency bands, unlicensed frequency bands, or both.
  • An embodiment of the present disclosure provides a method for transmitting a synchronization signal block, which is applied to a network device side. As shown in FIG. 2, the method includes the following steps:
  • Step 21 Determine a target time domain transmission position of the first synchronization signal block in a downlink signal transmission time.
  • Each synchronization signal block corresponds to a synchronization signal block index number (SSB index), the SSB index of the first synchronization signal block is a first value, and the first value is one of the SSB index.
  • SSB index synchronization signal block index number
  • the first synchronization signal block referred to here is not limited to the synchronization signal block of a specific SSB index, for example, there are 8 synchronization signal blocks from SSB0 to 7, the first synchronization signal block can be these 8 Any of them.
  • the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block
  • the first synchronization signal block has at least two candidate time domain transmission positions, that is, each SSB index
  • the synchronization signal block may have at least two candidate time domain transmission positions, such as N.
  • the number of candidate time domain transmission positions of synchronization signal blocks of different SSB indexes may be the same or different, but the synchronization signal blocks of each SSB index
  • the number of candidate time-domain transmission positions N does not exceed the maximum number of SSB transmissions supported by an SS burst in the current operating frequency band.
  • the network device selects one of at least two candidate time domain transmission positions as the target time domain transmission position of the first synchronization signal block during the downlink signal transmission time. Because there are multiple candidate time domain transmission positions to choose from, the synchronization signal The sending of blocks is more flexible.
  • Step 22 Send the first synchronization signal block through the target time domain transmission position.
  • the first synchronization signal block may have at least one of the following functions: used for initial timing synchronization; used for radio link detection, beam failure detection, and measurement of radio resource management, such as including reporting layer 3 (Level 3, L3) Reference signal received power (RSRP), Reference signal received quality (RSRQ), Signal to interference plus noise ratio (Signal to Interference plus Noise Ratio, SINR), Reference signal strength indicator (Received Signal Strength Indicator, RSSI), etc .; used as a measurement report of Level 1 (Level 1, L1) RSRP; used as a reference for the location of time-frequency resources sent by Random Access Message 1 (MSG1); and used for uplink transmission Reference for power control, such as the terminal determining the uplink transmission power according to the power of the received SSB.
  • RSRP Reference signal received power
  • RSRQ Reference signal received quality
  • SINR Signal to interference plus Noise Ratio
  • SINR Signal to Interference plus Noise Ratio
  • RSSI Reference signal strength indicator
  • RSSI Reference Signal Strength Indicator
  • the candidate time domain transmission position of the first synchronization signal block in the embodiment of the present disclosure includes, but is not limited to, a default time domain transmission position and at least one additional time domain transmission position.
  • the default time domain transmission position is the same as the time domain transmission position of the first synchronization signal block in the authorized frequency band.
  • the subcarrier interval of 60/120 / 240kHz is supported, and NR below 6GHz supports the subcarrier interval of 15/30 / 60kHz.
  • SSB can be transmitted when the subcarrier interval is 15/30/60/120 / 240kHz, and data can be transmitted when the subcarrier interval is 15/30/60 / 120kHz. It cannot be used to transmit data when the subcarrier interval is 240kHz.
  • the SSB transmitted in one half-frame (5ms), the first orthogonal frequency division multiplexing (OFDM) of the SSB, and the symbol index of the OFDM symbol are related to the subcarrier spacing of the SSB.
  • An OFDM symbol of 0 is the first OFDM symbol of the first slot in a 5ms field.
  • the SSB is sent as follows:
  • CASE A 15-kHz subcarrier interval.
  • the symbol number of the first OFDM symbol transmitting SSB is ⁇ 2, 8 ⁇ + 14 * n.
  • n 0 or 1;
  • n 0, 1, 2, or 3.
  • the symbol number of the first OFDM symbol transmitting SSB is ⁇ 4,8,16,20 ⁇ + 28 * n.
  • CASE C: 30kHz subcarrier interval
  • the symbol number of the first OFDM symbol transmitting SSB is ⁇ 2,8 ⁇ + 14 * n.
  • n 0 or 1
  • the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz
  • n 0, 1, 2, or 3.
  • n 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, or 18.
  • CASE The sub-carrier interval of 240 kHz.
  • the symbol number of the first OFDM symbol transmitting SSB is ⁇ 8, 12, 16, 20, 32, 36, 40, 44 ⁇ + 56 * n.
  • n 0, 1, 2, 3, 5, 6, 7, or 8.
  • the SSB index is always numbered from 0 to L-1 in ascending order in the time direction.
  • the default time domain transmission position of the first synchronization signal block is the same as the time domain transmission position of the first synchronization signal block in the above scenario. For example, if the carrier frequency is less than or equal to 3 GHz, the subcarrier interval is 15 kHz, and the first synchronization signal block is SSB0, then the first OFDM symbol in the default time domain transmission position of the first synchronization signal block is 2.
  • the additional time-domain transmission position is a time-domain transmission position for transmitting a synchronization signal block in addition to the default time-domain transmission position, that is, in a 5ms half frame, the SSB of each SSB index is defined
  • the SSB time-domain transmission position defined in the authorized frequency band is determined as the default time-domain transmission position.
  • the setting of the newly added additional time-domain transmission position can refer to but is not limited to the following the way:
  • the extra time domain transmission position of the first synchronization signal block can be reused as the default time domain transmission position of other SSB indexes.
  • the additional time domain transmission position is at least one of the default time domain transmission positions of other synchronization signal blocks in the packet to which the first synchronization signal block belongs; wherein the packet includes at least two synchronization signal blocks with different index numbers, which are different
  • the number of synchronization signal blocks included in the packet may be the same or different, which is not specifically limited in the embodiment of the present disclosure. Grouping is performed according to the SSB index, and the default time-domain transmission positions of other SSBs in the same group are additional time-domain transmission positions of the first synchronization signal block.
  • the default time domain transmission positions corresponding to the 8 SSBs are shown in Figure 3, where the 8 SSBs are divided into 4 groups, such as ⁇ 0, 4 ⁇ , ⁇ 1, 5 ⁇ , ⁇ 2, 6 ⁇ , and ⁇ 3, 7 ⁇ , that is, SSBs that satisfy the same result as mod (SSB index, 4) are grouped into one group.
  • the network device may choose to be in another additional time domain transmission position.
  • the first synchronization signal block is transmitted. For example, SSB0 may be transmitted at the transmission position of SSB4.
  • the additional time domain transmission location may be other time domain transmission locations than the default time domain transmission location of all SSB indexes. That is, the additional time domain transmission position is one of the time domain transmission positions other than the default time domain transmission position of all the synchronization signal blocks.
  • L 8 SSB transmissions with a subcarrier interval of 30kHz.
  • the default time domain transmission positions corresponding to the 8 SSBs are shown in Figure 5, where the 8 SSB
  • the transmission can be completed in 4 slots, that is, the transmission of all SSBs is completed in 2ms.
  • the extra time domain transmission position can be selected in the remaining 3ms.
  • the default time-domain transmission position of each SSB is repeated again, that is, ⁇ 2,8 ⁇ + 14 * n + 14 * 5 is additionally defined as the number of the starting OFDM symbols that can transmit these SSBs, and the SSBs starting from the fifth slot Position, in ascending order of time, corresponding to the SSB numbered 0-7.
  • the network device may choose to transmit at ⁇ 2,8 ⁇ + 14 *
  • the first synchronization signal block is transmitted at the OFDM symbol position starting at n + 14 * 5.
  • the 6th slot (if the slot number starts from 0, that is, slot5) (that is, from 2.5ms), and set the additional time domain transmission position of the synchronization signal block with different SSB index, for example, Repeat the default time domain transmission positions of the 8 SSBs again, that is, ⁇ 2,8 ⁇ + 14 * n + 14 * 6 is defined as the number of the starting OFDM symbol that can transmit the SSB, and the SSB starting from the 6th slot Position, in ascending order of time, corresponding to the SSB numbered 0-7.
  • the network device may choose to transmit at ⁇ 2,8 ⁇ + 14 *
  • the first synchronization signal block is transmitted at the OFDM symbol position starting at n + 14 * 6.
  • Method 3 Within the sending period of the synchronization signal block, set the first synchronization signal block to a different SSB burst (from the start position of each 10ms frame or the 5ms duration from the start position of a 5ms half frame)
  • the default time-domain transmission positions of the are determined as candidate time-domain transmission positions of the first synchronization signal block.
  • the network device can send only system information or radio resource control (Radio Resource Control (RRC) signaling) in an SSB burst to indicate some SSBs in the SSB that need to be sent, that is, not all of the SSBs that need to be sent
  • RRC Radio Resource Control
  • Step 21 is: during the transmission period of the synchronization signal block, if the channel is detected to be idle, the target time domain transmission position of the first synchronization signal block is determined within the channel occupation time; wherein the transmission period of the first synchronization signal block is N 5ms, N is a positive integer greater than 1, and the channel occupation time referred to herein is less than or equal to MCOT.
  • the transmission period of the synchronization signal block includes N SSB bursts
  • the network device can complete the sending of the first synchronization signal block on any of the N SSB bursts. That is to say, the channel may be heard multiple times during the sending period of the synchronization signal block, and then the network device determines the target time domain transmission position of the first synchronization signal block within the channel occupation time occupied by the multiple listening results.
  • the network device occupies the 2nd, 6th, 8th, 12th, 14th, and 18th slots according to the listening results within these 20ms.
  • the 2 slots include transmission positions of SSB2 and SSB3, the 6th slot includes transmission positions of SSB0 and SSB1, the 8th slot includes transmission positions of SSB4 and SSB5, and the 12th slot includes transmission positions of SSB2 and SSB3
  • the 14th slot includes the transmission positions of SSB6 and SSB7, and the 18th slot includes the transmission positions of SSB4 and SSB5. Then the network device can transmit SSB2 and SSB3 in the 2nd and 12th slots, SSB1 in the 6th slot, SSB4 in the 8th and 18th slots, and SSB7 in the 14th slot. .
  • the network device sends the same synchronization signal block only once during the transmission period of the synchronization signal block, that is, if the network device detects that the channel is idle, it determines that the first synchronization signal block is transmitted in the synchronization signal block. Whether the transmission is completed within the period; if the first synchronization signal block is not completed, determine the target time domain transmission position of the first synchronization signal block within the channel occupation time. As shown in Figure 6, the network device occupies the second, sixth, eighth, twelfth, fourteenth, and eighteenth slots according to the listening results within these 20ms. Among them, the second slot includes The transmission positions of SSB2 and SSB3.
  • the 6th slot includes the transmission positions of SSB0 and SSB1
  • the 8th slot includes the transmission positions of SSB4 and SSB5
  • the 12th slot includes the transmission positions of SSB2 and SSB3, and the 14th slot
  • the transmission positions of SSB6 and SSB7 are included, and the transmission positions of SSB4 and SSB5 are included in the 18th slot.
  • the network device transmits at the first transmission position of SSB1, 2, 3, 4 and 7, that is, SSB2 and SSB3 are transmitted in the second slot, SSB1 is transmitted in the 6th slot, and in the 8th slot Transmit SSB4 and SSB7 in the 14th slot.
  • the start and end positions of the maximum duration MCOT occupied by the channel may be aligned with the subframe or slot boundary, or may not be aligned with the subframe or slot boundary.
  • FIG. 6 only uses the alignment scene as an example for illustration.
  • the first synchronization signal block in the embodiment of the present disclosure carries instruction information used to indicate a target time-domain transmission position. That is, the actual transmission position of the SSB is indicated by a physical channel or a physical signal in the SSB.
  • the target time domain transmission position of the first synchronization signal block is indicated by the bits in the PBCH in the SSB.
  • instruction information includes at least one of the following:
  • First indication information used to indicate whether the target time domain transmission position is a default time domain transmission position of the first synchronization signal block; wherein the first indication information is used to indicate whether the first synchronization signal block is transmitted at its default time domain transmission position. ;
  • Second indication information for indicating time domain resources of candidate time domain transmission locations of the first synchronization signal block; wherein the second indication information is used to indicate OFDM of time domain resources where all candidate time domain transmission locations of the first synchronization signal block are located Symbol, slot, sub-frame or frame number;
  • the third indication information used to indicate the time domain resource of the target time domain transmission position; wherein the second indication information is used to indicate the OFDM symbol, slot, subframe or frame of the time domain resource where the first synchronization signal block is actually sent. Numbering;
  • the offset indicated by the fourth indication information includes a time domain offset value and / or a synchronization signal block index number offset value. That is, the fourth indication information is used to indicate how many OFDM symbols, slots, subframes, fields, or frames are shifted from the actual transmission position of the first synchronization signal block compared to the default time domain transmission position, or; How many SSB index transmission positions the actual transmission position of the sync signal block is offset from the default time-domain transmission position.
  • the network device can flexibly send the synchronization signal block at different time points in a time period, so as to prevent the synchronization signal block from being unable to be transmitted due to missing the transmission time of the synchronization signal block. Problems, which can improve the effectiveness of communication.
  • the network device 700 can implement the above-mentioned embodiment to determine the target time domain transmission position of the first synchronization signal block in the downlink signal transmission time; wherein the target time domain transmission position is the first One of at least two candidate time domain transmission positions of the synchronization signal block; details of the method for sending the first synchronization signal block through the target time domain transmission position and achieve the same effect, the network device 700 specifically includes the following functional modules:
  • a first processing module 710 is configured to determine a target time domain transmission position of a first synchronization signal block within a downlink signal sending time; wherein the target time domain transmission position is among at least two candidate time domain transmission positions of the first synchronization signal block. one of;
  • the sending module 720 is configured to send a first synchronization signal block through a target time domain transmission position.
  • the candidate time domain transmission position includes a default time domain transmission position and at least one additional time domain transmission position.
  • the additional time-domain transmission position is at least one of the default time-domain transmission positions of other synchronization signal blocks in the packet to which the first synchronization signal block belongs; wherein the packet includes at least two synchronization signal blocks with different index numbers.
  • the additional time domain transmission position is one of the time domain transmission positions other than the default time domain transmission position of all synchronization signal blocks.
  • the first processing module 710 includes:
  • a first determining sub-module configured to determine a target time domain transmission position of the first synchronization signal block within the channel occupation time if the channel is detected to be idle during the sending period of the synchronization signal block; wherein the first synchronization signal block
  • the sending cycle is N 5ms, and N is a positive integer greater than 1.
  • the first determining sub-module includes:
  • a first determining unit configured to determine whether the first synchronization signal block is completely transmitted within the transmission period of the synchronization signal block if it is detected that the channel is idle;
  • the second determining unit is configured to determine a target time domain transmission position of the first synchronization signal block within a channel occupation time if the first synchronization signal block is not completely transmitted.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position.
  • the instruction information includes at least one of the following:
  • First indication information used to indicate whether a target time domain transmission position is a default time domain transmission position of a first synchronization signal block
  • Third indication information of a time domain resource for indicating a target time domain transmission location
  • Fourth indication information for indicating an offset between a target time domain transmission position and a default time domain transmission position of the first synchronization signal block.
  • the offset includes a time domain offset value and / or a synchronization signal block index number offset value.
  • the network device can flexibly send synchronization signal blocks at different time points in a time period to avoid the problem that the synchronization signal blocks cannot be transmitted due to missing the transmission time of the synchronization signal blocks. This can improve the effectiveness of communication.
  • an embodiment of the present disclosure further provides a network device.
  • the network device includes a processor, a memory, and a computer program stored on the memory and executable on the processor.
  • the processor executes the computer program. The steps in the transmission method of the synchronization signal block as described above are realized at times.
  • An embodiment of the present disclosure further provides a computer-readable storage medium.
  • the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, implements the steps of the synchronization signal block transmission method described above.
  • the network device 800 includes: an antenna 81, a radio frequency device 82, and a baseband device 83.
  • the antenna 81 is connected to a radio frequency device 82.
  • the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing.
  • the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82.
  • the radio frequency device 82 processes the received information and sends it out via the antenna 81.
  • the method performed by the network device in the above embodiments may be implemented in a baseband device 83, which includes a processor 84 and a memory 85.
  • the baseband device 83 may include, for example, at least one baseband board, and a plurality of chips are provided on the baseband board, as shown in FIG. 8.
  • One of the chips is, for example, a processor 84 connected to the memory 85 to call a program in the memory 85 and execute The network device operations shown in the above method embodiments are operated.
  • the baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82.
  • the interface is, for example, a common public radio interface (CPRI).
  • the processor here may be a processor or a collective name for multiple processing elements.
  • the processor may be a CPU, an ASIC, or one or more configured to implement the methods performed by the above network devices.
  • Integrated circuits such as: one or more microprocessors, or digital signal processor DSPs, or one or more field programmable gate array FPGAs.
  • a storage element may be a single memory or a collective term for multiple storage elements.
  • the memory 85 may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electronic memory. Erase programmable read-only memory (EPROM, EEPROM) or flash memory.
  • the volatile memory may be Random Access Memory (RAM), which is used as an external cache.
  • RAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDRSDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM SLDRAM
  • Direct RAMbus RAM Direct RAMbus RAM
  • the network device further includes: a computer program stored in the memory 85 and executable on the processor 84, and the processor 84 calls the computer program in the memory 85 to execute the method executed by each module shown in FIG. .
  • the computer program can be used to execute when called by the processor 84: determining a target time domain transmission position of the first synchronization signal block in the downlink signal transmission time; wherein the target time domain transmission position is at least two of the first synchronization signal block. One of the candidate time-domain transmission positions; and sending a first synchronization signal block through the target time-domain transmission position.
  • the candidate time domain transmission position includes a default time domain transmission position and at least one additional time domain transmission position.
  • the additional time-domain transmission position is at least one of the default time-domain transmission positions of other synchronization signal blocks in the packet to which the first synchronization signal block belongs; wherein the packet includes at least two synchronization signal blocks with different index numbers.
  • the additional time domain transmission position is one of the time domain transmission positions other than the default time domain transmission position of all synchronization signal blocks.
  • the computer program can be used for execution when called by the processor 84: during the transmission period of the synchronization signal block, if the channel is detected to be idle, the target time domain transmission position of the first synchronization signal block is determined within the channel occupation time;
  • the sending period of the first synchronization signal block is N 5ms, and N is a positive integer greater than 1.
  • the computer program can be used for execution when called by the processor 84: if it is detected that the channel is idle, determine whether the first synchronization signal block is completely transmitted within the transmission period of the synchronization signal block; Then, the target time domain transmission position of the first synchronization signal block is determined within the channel occupation time.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position.
  • the instruction information includes at least one of the following:
  • First indication information used to indicate whether a target time domain transmission position is a default time domain transmission position of a first synchronization signal block
  • Third indication information of a time domain resource for indicating a target time domain transmission location
  • Fourth indication information for indicating an offset between a target time domain transmission position and a default time domain transmission position of the first synchronization signal block.
  • the offset includes a time domain offset value and / or a synchronization signal block index number offset value.
  • the network device may be a Global System (Global System) of Mobile Communication (GSM) or a Code Division Multiple Access (CDMA) base station (Base Transceiver Station, BTS), or a broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) base station (NodeB, NB), can also be LTE evolution base station (Evolutional NodeB, eNB or eNodeB), or relay station or access point, or future 5G
  • GSM Global System
  • CDMA Code Division Multiple Access
  • BTS Base Transceiver Station
  • WCDMA Wideband Code Division Multiple Access
  • NodeB, NB can also be LTE evolution base station (Evolutional NodeB, eNB or eNodeB), or relay station or access point, or future 5G
  • LTE evolution base station Evolutional NodeB, eNB or eNodeB
  • relay station or access point or future 5G
  • the network device in the embodiment of the present disclosure can flexibly send synchronization signal blocks at different time points in a time period, so as to avoid the problem that synchronization signal blocks cannot be transmitted due to missing the transmission time of the synchronization signal blocks, so that it can Improve communication effectiveness.
  • the method for transmitting a synchronization signal block according to an embodiment of the present disclosure includes the following steps:
  • Step 91 Receive a first synchronization signal block.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position. That is, the indication information may be carried through a physical channel or a physical signal in the SSB to indicate the actual transmission position of the SSB. For example, the target time domain transmission position of the first synchronization signal block is indicated by the bits in the PBCH in the SSB.
  • Step 92 Determine a target time domain transmission position of the first synchronization signal block according to the instruction information.
  • the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block.
  • the network device selects one of at least two candidate time domain transmission positions as the target time domain transmission position of the first synchronization signal block during the downlink signal transmission time. Because there are multiple candidate time domain transmission positions to choose from, the network device It is more flexible for sending synchronization signal blocks.
  • the candidate time domain transmission position includes a default time domain transmission position and at least one additional time domain transmission position.
  • the default time domain transmission position is the same as the time domain transmission position of the first synchronization signal block in the authorized frequency band.
  • the additional time domain transmission position is a time domain transmission position for transmitting a synchronization signal block in addition to the default time domain transmission position, wherein the additional time domain transmission position may be within a packet to which the first synchronization signal block belongs. At least one of the default time domain transmission positions of the other synchronization signal blocks of the; wherein the packet includes at least two synchronization signal blocks with different index numbers.
  • the additional time domain transmission position is one of time domain transmission positions other than the default time domain transmission position of all synchronization signal blocks.
  • Step 92 includes: determining a target time domain transmission position of the first synchronization signal block within a transmission period of the synchronization signal block according to the instruction information; wherein the transmission period of the synchronization signal block is N 5ms, and N is a positive number greater than 1. Integer.
  • the transmission period of the synchronization signal block is N 5ms, and N is a positive number greater than 1. Integer.
  • set the first synchronization signal block in a different SSB burst (5ms, such as 5ms duration from the start position of each 10ms frame or the start position of a 5ms half frame)
  • the default time domain transmission position is determined as the candidate time domain transmission position of the first synchronization signal block.
  • the network device can send only system information or radio resource control (Radio Resource Control (RRC) signaling) within an SSB burst set to indicate that Part of the SSB in the SSB, that is, it is not required that all SSBs that need to be sent be completed within a 5ms window.
  • RRC Radio Resource Control
  • First indication information used to indicate whether the target time domain transmission position is a default time domain transmission position of the first synchronization signal block; wherein the first indication information is used to indicate whether the first synchronization signal block is transmitted at its default time domain transmission position. ;
  • Second indication information for indicating time domain resources of candidate time domain transmission locations of the first synchronization signal block; wherein the second indication information is used to indicate OFDM of time domain resources where all candidate time domain transmission locations of the first synchronization signal block are located The number of the symbol, slot, subframe, or frame.
  • the third indication information used to indicate the time domain resource of the target time domain transmission position; wherein the second indication information is used to indicate the OFDM symbol, slot, subframe or frame of the time domain resource where the first synchronization signal block is actually sent. Numbering;
  • And fourth indication information for indicating an offset between a target time domain transmission position and a default time domain transmission position of the first synchronization signal block.
  • the offset indicated by the fourth indication information includes a time domain offset value and / or a synchronization signal block index number offset value.
  • the method for transmitting a synchronization signal block can flexibly transmit the synchronization signal block at different time points within a time period, thereby avoiding the problem that the synchronization signal block cannot be transmitted due to missing the transmission time of the synchronization signal block. , Which can improve the effectiveness of communication.
  • the terminal 1000 can implement receiving the first synchronization signal block in the foregoing embodiment.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position.
  • the terminal 1000 specifically includes the following functional modules:
  • the receiving module 1010 is configured to receive a first synchronization signal block.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position.
  • the second processing module 1020 is configured to determine a target time domain transmission position of the first synchronization signal block according to the instruction information; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block. .
  • the candidate time domain transmission location includes a default time domain transmission location and at least one additional time domain transmission location.
  • the additional time-domain transmission position is at least one of the default time-domain transmission positions of other synchronization signal blocks in the packet to which the first synchronization signal block belongs; wherein the packet includes at least two synchronization signal blocks with different index numbers.
  • the additional time domain transmission position is one of the time domain transmission positions other than the default time domain transmission position of all synchronization signal blocks.
  • the second processing module 1020 includes:
  • a second determining submodule configured to determine a target time domain transmission position of the first synchronization signal block within a transmission period of the synchronization signal block according to the instruction information; wherein the transmission period of the synchronization signal block is N 5ms, and N is greater than 1 Positive integer.
  • the instruction information includes at least one of the following:
  • First indication information used to indicate whether a target time domain transmission position is a default time domain transmission position of a first synchronization signal block
  • Third indication information of a time domain resource for indicating a target time domain transmission location
  • Fourth indication information for indicating an offset between a target time domain transmission position and a default time domain transmission position of the first synchronization signal block.
  • the offset includes a time domain offset value and / or a synchronization signal block index number offset value.
  • the embodiments of the present disclosure can flexibly transmit synchronization signal blocks at different time points within a time period, to avoid the problem that synchronization signal blocks cannot be transmitted due to missing the transmission time of the synchronization signal blocks, so that Improve communication effectiveness.
  • each module of the above network equipment and terminal is only a division of logical functions. In actual implementation, it may be fully or partially integrated into a physical entity, or it may be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in hardware; some modules can be implemented in the form of software called by processing elements, and some modules can be implemented in hardware.
  • the determination module may be a separately established processing element, or may be integrated and implemented in a chip of the above-mentioned device.
  • each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
  • the above modules may be one or more integrated circuits configured to implement the above method, for example: one or more specific integrated circuits (ASIC), or one or more microprocessors, or , One or more digital signal processors (DSPs), or one or more field programmable gate arrays (FPGAs, etc.).
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • FPGA field programmable gate arrays
  • the processing element may be a general-purpose processor, such as a central processing unit (Central Processing Unit) or other processor that can call program code.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 11 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure.
  • the terminal 110 includes, but is not limited to, a radio frequency unit 111, a network module 112, an audio output unit 113, The input unit 114, the sensor 115, the display unit 116, the user input unit 117, the interface unit 118, the memory 119, the processor 1110, and the power source 1111 and other components.
  • the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal.
  • the terminal may include more or fewer components than shown in the figure, or some components may be combined, or different component arrangements.
  • the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a car terminal, a wearable device, a pedometer, and the like.
  • the radio frequency unit 111 is configured to receive a first synchronization signal block.
  • the first synchronization signal block carries instruction information used to indicate a target time-domain transmission position.
  • a processor 1110 configured to determine a target time domain transmission position of the first synchronization signal block according to the instruction information; wherein the target time domain transmission position is one of at least two candidate time domain transmission positions of the first synchronization signal block;
  • the embodiments of the present disclosure can flexibly transmit synchronization signal blocks at different time points in a time period, avoiding the problem that synchronization signal blocks cannot be transmitted due to missing the transmission time of the synchronization signal blocks, thereby improving the effectiveness of communication. .
  • the radio frequency unit 111 may be used to receive and send signals during the transmission and reception of information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 1110; The uplink data is sent to the base station.
  • the radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the radio frequency unit 111 can also communicate with a network and other devices through a wireless communication system.
  • the terminal provides users with wireless broadband Internet access through the network module 112, such as helping users to send and receive email, browse web pages, and access streaming media.
  • the audio output unit 113 may convert audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into audio signals and output them as sound. Moreover, the audio output unit 113 may also provide audio output (for example, call signal reception sound, message reception sound, etc.) related to a specific function performed by the terminal 110.
  • the audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.
  • the input unit 114 is used to receive audio or video signals.
  • the input unit 114 may include a graphics processing unit (GPU) 1141 and a microphone 1142.
  • the graphics processor 1141 may pair images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Data is processed.
  • the processed image frames may be displayed on the display unit 116.
  • the image frames processed by the graphics processor 1141 may be stored in the memory 119 (or other storage medium) or transmitted via the radio frequency unit 111 or the network module 112.
  • the microphone 1142 can receive sound, and can process such sound into audio data.
  • the processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 111 in the case of a telephone call mode.
  • the terminal 110 further includes at least one sensor 115, such as a light sensor, a motion sensor, and other sensors.
  • the light sensor includes an ambient light sensor and a proximity sensor.
  • the ambient light sensor can adjust the brightness of the display panel 1161 according to the brightness of the ambient light.
  • the proximity sensor can close the display panel 1161 and / or when the terminal 110 is moved to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in various directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the attitude of the terminal (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc .; sensor 115 can also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared The sensors and the like are not repeated here.
  • the display unit 116 is configured to display information input by the user or information provided to the user.
  • the display unit 116 may include a display panel 1161.
  • the display panel 1161 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the user input unit 117 may be configured to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the terminal.
  • the user input unit 117 includes a touch panel 1171 and other input devices 1172.
  • the touch panel 1171 also known as a touch screen, can collect user's touch operations on or near it (for example, the user uses a finger, a stylus or any suitable object or accessory on the touch panel 1171 or near the touch panel 1171 operating).
  • the touch panel 1171 may include two parts, a touch detection device and a touch controller.
  • the touch detection device detects the user's touch position, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it
  • the processor 1110 receives a command sent by the processor 1110 and executes the command.
  • various types such as resistive, capacitive, infrared, and surface acoustic wave can be used to implement the touch panel 1171.
  • the user input unit 117 may further include other input devices 1172.
  • other input devices 1172 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
  • the touch panel 1171 may be overlaid on the display panel 1161.
  • the touch panel 1171 detects a touch operation on or near the touch panel 1171, it is transmitted to the processor 1110 to determine the type of the touch event, and the processor 1110 then The type of event provides corresponding visual output on the display panel 1161.
  • the touch panel 1171 and the display panel 1161 are implemented as input and output functions of the terminal as two separate components, in some embodiments, the touch panel 1171 and the display panel 1161 can be integrated and Implement the input and output functions of the terminal, which are not limited here.
  • the interface unit 118 is an interface through which an external device is connected to the terminal 110.
  • the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, audio input / output (I / O) port, video I / O port, headphone port, and more.
  • the interface unit 118 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 110 or may be used to communicate between the terminal 110 and an external device. Transfer data.
  • the memory 119 may be used to store software programs and various data.
  • the memory 119 may mainly include a storage program area and a storage data area, where the storage program area may store an operating system, at least one application required by a function (such as a sound playback function, an image playback function, etc.), etc .; the storage data area may store data according to Data (such as audio data, phone book, etc.) created by the use of mobile phones.
  • the memory 119 may include a high-speed random access memory, and may further include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device.
  • the processor 1110 is a control center of the terminal, and uses various interfaces and lines to connect various parts of the entire terminal. By running or executing software programs and / or modules stored in the memory 119, and calling data stored in the memory 119, execution is performed. Various functions and processing data of the terminal, so as to monitor the terminal as a whole.
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and an application program, etc.
  • the tuning processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1110.
  • the terminal 110 may further include a power source 1111 (such as a battery) for supplying power to various components.
  • a power source 1111 such as a battery
  • the power source 1111 may be logically connected to the processor 1110 through a power management system, thereby implementing management of charging, discharging, and power consumption management through the power management system. And other functions.
  • the terminal 110 includes some functional modules that are not shown, and details are not described herein again.
  • an embodiment of the present disclosure further provides a terminal, including a processor 1110 and a memory 119, and a computer program stored on the memory 119 and executable on the processor 1110.
  • the terminal may be a wireless terminal or a wired terminal.
  • the wireless terminal may be a device that provides voice and / or other business data connectivity to the user, a handheld device with a wireless connection function, or other processing equipment connected to a wireless modem. .
  • a wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
  • a mobile terminal such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal
  • it can be a portable, pocket, handheld, computer-built or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network.
  • PCS Personal Communication Service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • a wireless terminal can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a mobile station, a remote station, a remote terminal,
  • the access terminal Access terminal
  • user terminal User terminal
  • user agent User agent
  • user equipment User Equipment
  • An embodiment of the present disclosure further provides a computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the processes of the foregoing synchronization signal block transmission method embodiment are implemented, and can achieve The same technical effects are omitted here to avoid repetition.
  • the computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.
  • the disclosed apparatus and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure is essentially a part that contributes to related technologies or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in various embodiments of the present disclosure.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
  • each component or each step can be disassembled and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure.
  • the steps for performing the above-mentioned series of processes can be naturally performed in chronological order according to the order of description, but need not necessarily be performed in chronological order, and certain steps may be performed in parallel or independently of each other.
  • it is able to understand all or any steps or components of the methods and devices of the present disclosure and may be implemented in hardware, firmware in any computing device (including a processor, a storage medium, etc.) or a network of computing devices.
  • Software, or a combination thereof which can be achieved by a person of ordinary skill in the art using their basic programming skills after reading the description of the present disclosure.
  • the purpose of the present disclosure can also be achieved by running a program or a group of programs on any computing device.
  • the computing device may be a well-known general-purpose device. Therefore, the object of the present disclosure can also be achieved only by providing a program product including a program code that implements the method or device. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
  • the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that, in the apparatus and method of the present disclosure, it is obvious that each component or each step can be disassembled and / or recombined.

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Abstract

提供了一种同步信号块的传输方法、网络设备及终端，其方法包括：在下行信号发送时间内，确定第一同步信号块的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；通过目标时域传输位置，发送第一同步信号块。

Description

同步信号块的传输方法、网络设备及终端
相关申请的交叉引用
本申请主张在2018年6月14日在中国提交的中国专利申请号No.201810613541.X的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种同步信号块的传输方法、网络设备及终端。
背景技术
在第五代(5th Generation，5G)移动通信系统中，或称为新空口(New Radio，NR)系统中，网络设备需要发送同步信号块(Synchronization Signal and PBCH Block，SSB)以供终端进行同步、系统信息获取、测量等。其中，多个SSB组成一个SSB突发集(SS burst set)，一个SS burst set中最多包含的SSB数目与系统使用的载波频率相关，其中：
频率小于3GHz时，一个SS burst set中最多可以包含4个SSB；
载波频率范围为3GHz到6GHz时，一个SS burst set中最多可以包含8个SSB；
载波频率范围为6GHz以上时，一个SS burst set中最多可以包含64个SSB。
无论一个SS burst set中包含多少SSB，都需要在一个5ms的时间窗内发送完。
NR系统支持不同的数值设置(Numerology)，不同的Numerology对应不同的信号子载波间隔，且SSB符号和其他符号可以采用不同的Numerology并进行复用。其中，其他符号指的是可以与SSB符号复用的符号，如：上行控制所在符号、下行控制所在符号、保护间隔所在符号、用于数据传输的符号等。不同Numerology下SSB在一个时隙(slot)内的可能的位置不同，SSB所在slot在5ms发送窗内的位置可能也不同。
在NR系统的授权辅助接入(Licensed-Assisted Access，LAA)场景中，或称为非授权频段传输场景，在发送信息之前，发送节点(基站或者终端)需要做信道空闲估计(clear channel access，CCA)/扩展信道空闲估计(extended clear channel assess，eCCA)侦听信道，即进行能量检测(energy detection，ED)，当能量低于一定门限时，信道被判断为空时，方可开始传输。由于非授权频段是多种技术共享，因此这种基于竞争的接入方式导致信道可用时间的不确定性。NR系统的授权频段传输场景下，每个SSB在5ms的半个无线帧中的位置是固定的，而在非授权频段传输场景下，网络设备需要在对应的频率范围内上进行侦听，可能侦听到某个时间段内信道不为空，导致对应随后的一个时间段内无法进行下行发送，可能导致某些SSB的可能传输位置已经错过，从而导致这些SSB无法成功发送。
发明内容
本公开实施例提供了一种同步信号块的传输方法、网络设备及终端，以解决非授权频段下同步信号块的传输问题。
第一方面，本公开实施例提供了一种同步信号块的传输方法，应用于网络设备侧，包括：
确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；
通过目标时域传输位置，发送第一同步信号块。
第二方面，本公开实施例还提供了一种网络设备，包括：
第一处理模块，用于确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；
发送模块，用于通过目标时域传输位置，发送第一同步信号块。
第三方面，本公开实施例提供了一种网络设备，网络设备包括处理器、存储器以及存储于存储器上并可在处理器上运行的计算机程序，处理器执行计算机程序时实现上述的同步信号块的传输方法的步骤。
第四方面，本公开实施例提供了一种同步信号块的传输方法，应用于终 端侧，包括：
接收第一同步信号块；其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息；
根据指示信息，确定第一同步信号块的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个。
第五方面，本公开实施例提供了一种终端，包括：
接收模块，用于接收第一同步信号块；其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息；
第二处理模块，用于根据指示信息，确定第一同步信号块的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个。
第六方面，本公开实施例还提供了一种终端，终端包括处理器、存储器以及存储于存储器上并可在处理器上运行的计算机程序，计算机程序被处理器执行时实现上述的同步信号块的传输方法的步骤。
第七方面，本公开实施例提供了一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现上述网络设备的同步信号块的传输方法的步骤，或者，实现上述终端的同步信号块的传输方法的步骤。
这样，本公开实施例可以保证同步信号块灵活的在一个时间段内的不同时间点进行发送，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例的描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1表示本公开实施可应用的移动通信系统的结构框图；
图2表示本公开实施例提供的网络设备侧的同步信号块的传输方法的流 程示意图；
图3表示本公开实施例中同步信号块的默认时域传输位置的资源映射示意图一；
图4表示本公开实施例方式一中同步信号块的候选时域传输位置的资源映射示意图；
图5表示本公开实施例中同步信号块的默认时域传输位置的资源映射示意图二；
图6表示本公开实施例方式二中的同步信号块的候选时域传输位置的资源映射示意图；
图7表示本公开实施例提供的网络设备的模块结构示意图；
图8表示本公开实施例提供的网络设备框图；
图9表示本公开实施例提供的终端侧的同步信号块的传输方法的流程示意图；
图10表示本公开实施例提供的终端的模块结构示意图；
图11表示本公开实施例提供的终端框图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本申请的说明书和权利要求书中的术语“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。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例例如能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。说明书以及权利要求中“和/或”表示所连接对象的 至少其中之一。
本文所描述的技术不限于长期演进型(Long Time Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，并且也可用于各种无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access，UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access，WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication，GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(Ultra Mobile Broadband，UMB)、演进型UTRA(Evolution-UTRA，E-UTRA)、IEEE802.11(Wi-Fi)、IEEE 802.16(WiMAX)、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System，UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project，3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。然而，以下描述出于示例目的描述了NR系统，并且在以下大部分描述中使用NR术语，以NR系统为例进行说明，尽管这些技术也可应用于NR系统应用以外的应用。所属领域技术人员可以理解，用词并不构成对本公开保护范围的限制。
以下描述提供示例而并非限定权利要求中阐述的范围、适用性或者配置。可以对所讨论的要素的功能和布置作出改变而不会脱离本公开的精神和范围。各种示例可恰适地省略、替代、或添加各种规程或组件。例如，可以按不同于所描述的次序来执行所描述的方法，并且可以添加、省去、或组合各种步骤。 另外，参照某些示例所描述的特征可在其他示例中被组合。
请参见图1，图1示出本公开实施例可应用的无线通信系统的结构框图。无线通信系统包括终端11和网络设备12。其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(Personal Digital Assistant，PDA)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备等终端侧设备，需要说明的是，在本公开实施例中并不限定终端11的具体类型。网络设备12可以是基站或核心网，其中，上述基站可以是5G及以后版本的基站(例如：gNB、5G NR NB等)，或者其他通信系统中的基站(例如：eNB、WLAN接入点、或其他接入点等)，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本公开实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
基站可在基站控制器的控制下与终端11通信，在各种示例中，基站控制器可以是核心网或某些基站的一部分。一些基站可通过回程与核心网进行控制信息或用户数据的通信。在一些示例中，这些基站中的一些可以通过回程链路直接或间接地彼此通信，回程链路可以是有线或无线通信链路。无线通信系统可支持多个载波(不同频率的波形信号)上的操作。多载波发射机能同时在这多个载波上传送经调制信号。例如，每条通信链路可以是根据各种无线电技术来调制的多载波信号。每个已调信号可在不同的载波上发送并且可携带控制信息(例如，参考信号、控制信道等)、开销信息、数据等。
基站可经由一个或多个接入点天线与终端11进行无线通信。每个基站可以为各自相应的覆盖区域提供通信覆盖。接入点的覆盖区域可被划分成仅构成该覆盖区域的一部分的扇区。无线通信系统可包括不同类型的基站(例如宏基站、微基站、或微微基站)。基站也可利用不同的无线电技术，诸如蜂窝 或WLAN无线电接入技术。基站可以与相同或不同的接入网或运营商部署相关联。不同基站的覆盖区域(包括相同或不同类型的基站的覆盖区域、利用相同或不同无线电技术的覆盖区域、或属于相同或不同接入网的覆盖区域)可以交叠。
无线通信系统中的通信链路可包括用于承载上行链路(Uplink，UL)传输(例如，从终端11到网络设备12)的上行链路，或用于承载下行链路(Downlink，DL)传输(例如，从网络设备12到终端11)的下行链路。UL传输还可被称为反向链路传输，而DL传输还可被称为前向链路传输。下行链路传输可以使用授权频段、非授权频段或这两者来进行。类似地，上行链路传输可以使用有授权频段、非授权频段或这两者来进行。
本公开实施例提供了一种同步信号块的传输方法，应用于网络设备侧，如图2所示，该方法包括以下步骤：
步骤21：确定第一同步信号块在下行信号发送时间内的目标时域传输位置。
其中，每个同步信号块对应一个同步信号块索引号(SSB index)，第一同步信号块的SSB index为第一值，第一值为SSB index中的一个。值得指出的是，这里所说的第一同步信号块并不限定为某个特定SSB index的同步信号块，例如有SSB0至7共8个同步信号块，第一同步信号块可以是这8个中的任一个。
进一步地，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个，第一同步信号块有至少两个候选时域传输位置，也就是说每个SSB index的同步信号块可以有至少两个候选时域传输位置，如N个，其中不同SSB index的同步信号块的候选时域传输位置个数可以相同也可以不同，但每个SSB index的同步信号块的候选时域传输位置的个数N不超过当前工作频段内一个SS burst set所支持的SSB最大传输个数L。例如，载波频率小于3GHz时，一个SS burst set中最多可以传输L＝4个SSB；载波频率范围为3GHz到6GHz时，一个SS burst set中最多可以传输L＝8个SSB；载波频率范围为6GHz以上时，一个SS burst set中最多可以传输L＝64个SSB。
网络设备在下行信号发送时间内，从至少两个候选时域传输位置中选择 一个作为第一同步信号块的目标时域传输位置，由于有多个候选时域传输位置可供选择，使得同步信号块的发送更加灵活。
步骤22：通过目标时域传输位置，发送第一同步信号块。
在确定第一同步信号块的目标时域传输位置后，在该传输位置上发送第一同步信号块。其中，第一同步信号块可以具备以下作用中的至少一项：用作初始的定时同步；用作无线链路检测、波束失败检测、无线资源管理的测量，如包括上报层3(Level 3，L3)的参考信号接收功率(Reference signal received power，RSRP)、参考信号接收质量(Reference signal received quality，RSRQ)、信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)、参考信号强度指示(Received Signal Strength Indicator，RSSI)等；用作层1(Level 1，L1)的RSRP的测量上报；用作随机接入的消息一(MSG1)发送的时频资源位置参考；以及用作上行发送的功率控制的参考，如终端根据接收的SSB的功率，确定上行发送的功率等。
其中，本公开实施例的第一同步信号块的候选时域传输位置包括但不限于：一个默认时域传输位置，以及至少一个额外时域传输位置。其中，默认时域传输位置与授权频段下第一同步信号块的时域传输位置相同。其中，对于6GHz以上NR系统支持60/120/240kHz的子载波间隔，6GHz以下NR支持15/30/60kHz的子载波间隔。其中子载波间隔为15/30/60/120/240kHz时可以传SSB，另外子载波间隔为15/30/60/120kHz时可以传输数据，子载波间隔为240kHz时不可以用于传输数据。
在授权频段下，在一个半帧(5ms)中传输的SSB，SSB的第一个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号的符号索引和SSB的子载波间隔有关，这里编号为0的OFDM符号为5ms半帧中的第1个时隙(slot)的第一个OFDM符号。SSB的发送位置如下：
CASE A：15kHz子载波间隔，传输SSB的第一个OFDM符号的符号编号为{2，8}+14*n。当载波频率小于或等于3GHz时，n＝0或1；当载波频率大于3GHz，小于或等于6GHz时，n＝0、1、2或3。
CASE B：30kHz子载波间隔，传输SSB的第一个OFDM符号的符号编号为{4，8，16，20}+28*n。当载波频率小于或等于3GHz时，n＝0；当载波 频率大于3GHz，小于或等于6GHz时，n＝0或1。
CASE C：30kHz子载波间隔，传输SSB的第一个OFDM符号的符号编号为{2，8}+14*n。当载波频率小于或等于3GHz时，n＝0或1；当载波频率大于3GHz，小于或等于6GHz时，n＝0、1、2或3。
CASE D：120kHz子载波间隔，传输SSB的第一个OFDM符号的符号编号为{4，8，16，20}+28*n。当载波频率大于6GHz时，n＝0、1、2、3、5、6、7、8、10、11、12、13、15、16、17或18。
CASE E：240kHz子载波间隔，传输SSB的第一个OFDM符号的符号编号为{8，12，16，20，32，36，40，44}+56*n。当载波频率大于6GHz时，n＝0、1、2、3、5、6、7或8。
其中值得指出得是，在5ms中的半帧中，SSB index总是在时间方向上以升序的方式从0到L-1进行编号。第一同步信号块的默认时域传输位置与以上场景下第一同步信号块的时域传输位置相同。例如载波频率小于或等于3GHz，子载波间隔为15kHz，第一同步信号块为SSB0，那么第一同步信号块的默认时域传输位置的第一个OFDM符号为2。
进一步地，额外时域传输位置是除默认时域传输位置之外的其他用于传输同步信号块的时域传输位置，也就是说，在一个5ms的半帧内，定义每个SSB index的SSB可以有N(N<＝L)个发送的位置，将授权频段下定义的SSB时域传输位置确定为默认时域传输位置，新增加的额外时域传输位置的设定可以参照但不限于以下方式：
方式一、第一同步信号块的额外时域传输位置可以复用其它SSB index的默认时域传输位置。例如：额外时域传输位置为：与第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，分组包括至少两个索引号不同的同步信号块，不同分组所包含的同步信号块个数可以相同也可以不同，对此本公开实施例并不做特殊限定。根据SSB index进行分组，同一分组内的其它SSB的默认时域传输位置为第一同步信号块的额外时域传输位置。
假设，系统工作在3-6GHz频段，最大支持L＝8个SSB的传输，子载波间隔为15kHz，那么这8个SSB对应的默认时域传输位置如图3所示，其中， 将这8个SSB分为4组，如{0，4}、{1，5}、{2，6}和{3，7}，即满足mod(SSB index，4)结果相同的SSB分为一组。组内的SSB可以在其它SSB编号对应的OFDM符号位置进行发送，即如图4所示，SSB index＝0的SSB可以在SSB index＝4的SSB上进行发送，SSB index＝1的SSB可以在SSB index＝5的SSB上进行发送，SSB index＝2的SSB可以在SSB index＝6的SSB上进行发送，SSB index＝3的SSB可以在SSB index＝7的SSB上进行发送。这样，在非授权频段传输场景下，如果网络设备的侦听结果为：第一同步信号块的默认时域传输位置所在信道不能进行下行发送，网络设备可以选择在其它的额外时域传输位置上进行第一同步信号块的传输，例如SSB0可以在SSB4的传输位置进行传输。
方式二、额外时域传输位置可以是除所有SSB index的默认时域传输位置外的其它时域传输位置。也就是说，额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
假设，系统工作在3-6GHz频段，最大支持L＝8个SSB的传输，子载波间隔为30kHz，那么这8个SSB对应的默认时域传输位置如图5所示，其中，这8个SSB可以在4个slot内完成发送，即2ms内完成了所有SSB的发送。那么在5ms的半帧内，还有其他的资源可以进行SSB的发送，这时额外时域传输位置可以在剩余的3ms中进行选择。可以定义从第5个slot(若slot编号从0开始，即slot4)开始(即从第2ms开始)，依此设定有不同SSB index的同步信号块的额外时域传输位置，例如将这8个SSB的默认时域传输位置再重复一次，即额外将{2，8}+14*n+14*5定义为可以传输这些SSB的起始OFDM符号的编号，从第5个Slot开始的SSB位置，按时间的升序对应编号为0-7的SSB。这样，在非授权频段传输场景下，如果网络设备的侦听结果为：第一同步信号块的默认时域传输位置所在信道不能进行下行发送，网络设备可以选择在{2，8}+14*n+14*5起始的OFDM符号位置上进行第一同步信号块的传输。或者，可以定义从第6个slot(若slot编号从0开始，即slot5)开始(即从第2.5ms开始)，依此设定有不同SSB index的同步信号块的额外时域传输位置，例如将这8个SSB的默认时域传输位置再重复一次，即将{2，8}+14*n+14*6定义为可以传输SSB的起始OFDM符号的编号，从第6个 Slot开始的SSB位置，按时间的升序对应编号为0-7的SSB。这样，在非授权频段传输场景下，如果网络设备的侦听结果为：第一同步信号块的默认时域传输位置所在信道不能进行下行发送，网络设备可以选择在{2，8}+14*n+14*6起始的OFDM符号位置上进行第一同步信号块的传输。
方式三、在同步信号块的发送周期内，将第一同步信号块在不同SSB burst set(从每个10ms帧的起始位置，或者从5ms半帧的起始位置开始的5ms持续时间)内的默认时域传输位置均确定为第一同步信号块的候选时域传输位置。这种方式下，网络设备可以在一个SSB burst set内仅发送系统信息或无线资源控制(Radio Resource Control，RRC)信令指示需要发送的SSB中的部分SSB，也就是说不要求需要发送的全部SSB在一个5ms的窗内完成发送。
步骤21为：在同步信号块的发送周期内，若侦听到信道空闲，则在信道占用时间内确定第一同步信号块的目标时域传输位置；其中，第一同步信号块的发送周期为N个5ms，N为大于1的正整数，这里所说的信道占用时间小于或等于MCOT。其中，值得指出是，由于同步信号块的发送周期内包括N个SSB burst set，网络设备可以在这N个SSB burst set中任一个上完成第一同步信号块的发送。也就是说，在同步信号块的发送周期内可能多次侦听到信道空闲，那么网络设备在根据多次侦听结果占用的信道占用时间内确定第一同步信号块的目标时域传输位置。
假设，系统工作在3-6GHz频段，最大支持L＝8个SSB的传输，子载波间隔为15kHz，那么这8个SSB对应的默认时域传输位置如图3所示，其中，N＝4，也就是说，同步信号块的发送周期设定为20ms，包括4个5ms的SSB burst set，包括20个slot。若网络设备需要发送编号为1、2、3、4和7的5个SSB，那么网络设备可以在这4个SSB burst set中的任一个SSB burst set内发送SSB。假设MCOT为1ms，如图6所示，网络设备在这20ms内根据侦听结果占用第2个、第6个、第8个、第12个、第14个和第18个slot，其中，第2个slot内包括SSB2和SSB3的传输位置，第6个slot内包括SSB0和SSB1的传输位置，第8个slot内包括SSB4和SSB5的传输位置，第12个slot内包括SSB2和SSB3的传输位置，第14个slot内包括SSB6和SSB7 的传输位置，第18个slot内包括SSB4和SSB5的传输位置。那么网络设备可以在第2个和第12个slot内传输SSB2和SSB3，在第6个slot内传输SSB1，在第8个和第18个slot内传输SSB4，以及在第14个slot内传输SSB7。
进一步地，网络设备在同步信号块的发送周期内，针对同一同步信号块仅发送一次，也就是说，若网络设备侦听到信道空闲，则确定第一同步信号块在该同步信号块的发送周期内是否发送完成；若第一同步信号块未完成发送，则在信道占用时间内确定第一同步信号块的目标时域传输位置。如图6所示，网络设备在这20ms内根据侦听结果占用第2个、第6个、第8个、第12个、第14个和第18个slot，其中，第2个slot内包括SSB2和SSB3的传输位置，第6个slot内包括SSB0和SSB1的传输位置，第8个slot内包括SSB4和SSB5的传输位置，第12个slot内包括SSB2和SSB3的传输位置，第14个slot内包括SSB6和SSB7的传输位置，第18个slot内包括SSB4和SSB5的传输位置。那么网络设备在SSB1、2、3、4和7的第一个传输位置处进行传输，即在第2个slot内传输SSB2和SSB3，在第6个slot内传输SSB1，在第8个slot内传输SSB4，以及在第14个slot内传输SSB7。其中，值得指出的是，网络设备在侦听到信道空闲时，信道占用的最大持续时间MCOT的起始位置和结束位置可以与子帧或slot边界对齐，也可以与子帧或slot边界不对齐，图6仅以对齐场景为例作为示例性说明。
其中，本公开实施例的第一同步信号块中携带有用于指示目标时域传输位置的指示信息。即，通过SSB中的物理信道或者物理信号来指示该SSB的实际发送位置。例如，通过SSB中PBCH中的比特指示第一同步信号块的目标时域传输位置。
进一步地，指示信息包括以下至少一项：
用于指示目标时域传输位置是否为第一同步信号块的默认时域传输位置的第一指示信息；其中，第一指示信息用于指示第一同步信号块是否在其默认时域传输位置发送；
用于指示第一同步信号块的候选时域传输位置的时域资源的第二指示信息；其中，第二指示信息用于指示第一同步信号块所有候选时域传输位置所 在时域资源的OFDM符号、slot、子帧或帧的编号；
用于指示目标时域传输位置的时域资源的第三指示信息；其中，第二指示信息用于指示第一同步信号块实际发送位置所在时域资源的OFDM符号、slot、子帧或帧的编号；
以及，用于指示目标时域传输位置与第一同步信号块的默认时域传输位置的偏移量的第四指示信息。其中，上述第四指示信息指示的偏移量包括时域偏移值和/或同步信号块索引号偏移值。也就是说，第四指示信息用于指示第一同步信号块实际传输位置相比于默认时域传输位置偏移了多少个OFDM符号、slot、子帧、半帧或帧，或者；指示第一同步信号块实际传输位置相比于默认时域传输位置偏移了多少个SSB index的传输位置。
本公开实施例的同步信号块的传输方法中，网络设备可以在一个时间段内的不同时间点对同步信号块进行灵活发送，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
以上实施例分别详细介绍了不同场景下的同步信号块的传输方法，下面本实施例将结合附图对其对应的网络设备做进一步介绍。
如图7所示，本公开实施例的网络设备700，能实现上述实施例中确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；通过目标时域传输位置，发送第一同步信号块方法的细节，并达到相同的效果，该网络设备700具体包括以下功能模块：
第一处理模块710，用于确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；
发送模块720，用于通过目标时域传输位置，发送第一同步信号块。
其中，候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
其中，额外时域传输位置为：与第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，分组包括至少两个索引号不同的同步信号块。
其中，额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
其中，第一处理模块710包括：
第一确定子模块，用于在同步信号块的发送周期内，若侦听到信道空闲，则在信道占用时间内确定第一同步信号块的目标时域传输位置；其中，第一同步信号块的发送周期为N个5ms，N为大于1的正整数。
其中，第一确定子模块包括：
第一确定单元，用于若侦听到信道空闲，则确定第一同步信号块在同步信号块的发送周期内是否发送完成；
第二确定单元，用于若第一同步信号块未完成发送，则在信道占用时间内确定第一同步信号块的目标时域传输位置。
其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息。
其中，指示信息包括以下至少一项：
用于指示目标时域传输位置是否为第一同步信号块的默认时域传输位置的第一指示信息；
用于指示第一同步信号块的候选时域传输位置的时域资源的第二指示信息；
用于指示目标时域传输位置的时域资源的第三指示信息；以及，
用于指示目标时域传输位置与第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
其中，偏移量包括时域偏移值和/或同步信号块索引号偏移值。
可选地，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：(2+14*n+14*5)，或者，(8+14*n+14*5)，其中，n＝0,1,2,3。
值得指出的是，本公开实施例的网络设备可以在一个时间段内的不同时间点对同步信号块进行灵活发送，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
为了更好的实现上述目的，本公开的实施例还提供了一种网络设备，该网络设备包括处理器、存储器以及存储于存储器上并可在处理器上运行的计 算机程序，处理器执行计算机程序时实现如上所述的同步信号块的传输方法中的步骤。
本公开实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，计算机程序被处理器执行时实现如上所述的同步信号块的传输方法的步骤。
具体地，本公开的实施例还提供了一种网络设备。如图8所示，该网络设备800包括：天线81、射频装置82、基带装置83。天线81与射频装置82连接。在上行方向上，射频装置82通过天线81接收信息，将接收的信息发送给基带装置83进行处理。在下行方向上，基带装置83对要发送的信息进行处理，并发送给射频装置82，射频装置82对收到的信息进行处理后经过天线81发送出去。
以上实施例中网络设备执行的方法可以在基带装置83中实现，该基带装置83包括处理器84和存储器85。
基带装置83例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图8所示，其中一个芯片例如为处理器84，与存储器85连接，以调用存储器85中的程序，执行以上方法实施例中所示的网络设备操作。
该基带装置83还可以包括网络接口86，用于与射频装置82交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
这里的处理器可以是一个处理器，也可以是多个处理元件的统称，例如，该处理器可以是CPU，也可以是ASIC，或者是被配置成实施以上网络设备所执行方法的一个或多个集成电路，例如：一个或多个微处理器，或，数字信号处理器DSP，或，一个或者多个现场可编程门阵列FPGA等。存储元件可以是一个存储器，也可以是多个存储元件的统称。
存储器85可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，其用作外部高速缓存。通过示例性但不 是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请描述的存储器85旨在包括但不限于这些和任意其它适合类型的存储器。
具体地，本公开实施例的网络设备还包括：存储在存储器85上并可在处理器84上运行的计算机程序，处理器84调用存储器85中的计算机程序执行图7所示各模块执行的方法。
具体地，计算机程序被处理器84调用时可用于执行：确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；通过目标时域传输位置，发送第一同步信号块。
其中，候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
其中，额外时域传输位置为：与第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，分组包括至少两个索引号不同的同步信号块。
其中，额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
其中，计算机程序被处理器84调用时可用于执行：在同步信号块的发送周期内，若侦听到信道空闲，则在信道占用时间内确定第一同步信号块的目标时域传输位置；其中，第一同步信号块的发送周期为N个5ms，N为大于1的正整数。
其中，计算机程序被处理器84调用时可用于执行：若侦听到信道空闲，则确定第一同步信号块在同步信号块的发送周期内是否发送完成；若第一同步信号块未完成发送，则在信道占用时间内确定第一同步信号块的目标时域 传输位置。
其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息。
其中，指示信息包括以下至少一项：
用于指示目标时域传输位置是否为第一同步信号块的默认时域传输位置的第一指示信息；
用于指示第一同步信号块的候选时域传输位置的时域资源的第二指示信息；
用于指示目标时域传输位置的时域资源的第三指示信息；以及，
用于指示目标时域传输位置与第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
其中，偏移量包括时域偏移值和/或同步信号块索引号偏移值。
可选地，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：(2+14*n+14*5)，或者，(8+14*n+14*5)，其中，n＝0,1,2,3。
其中，网络设备可以是全球移动通讯(Global System of Mobile communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB，NB)，还可以是LTE中的演进型基站(Evolutional Node B，eNB或eNodeB)，或者中继站或接入点，或者未来5G网络中的基站等，在此并不限定。
本公开实施例中的网络设备，可以在一个时间段内的不同时间点对同步信号块进行灵活的发送，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
以上实施例从网络设备侧介绍了本公开的同步信号块的传输方法，下面本实施例将结合附图对同步信号块的传输方法做进一步介绍。
如图9所示，本公开实施例的同步信号块的传输方法，应用于终端侧，包括以下步骤：
步骤91：接收第一同步信号块。
其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息。 即，指示信息可以通过SSB中的物理信道或者物理信号来携带，以指示该SSB的实际发送位置。例如，通过SSB中PBCH中的比特指示第一同步信号块的目标时域传输位置。
步骤92：根据指示信息，确定第一同步信号块的目标时域传输位置。
其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个。网络设备在下行信号发送时间内，从至少两个候选时域传输位置中选择一个作为第一同步信号块的目标时域传输位置，由于有多个候选时域传输位置可供选择，使得网络设备对于同步信号块的发送更加灵活。
其中，候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。其中，默认时域传输位置与授权频段下第一同步信号块的时域传输位置相同。
进一步地，额外时域传输位置是除默认时域传输位置之外的其他用于传输同步信号块的时域传输位置，其中，额外时域传输位置可以为：与第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，分组包括至少两个索引号不同的同步信号块。或者，额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
其中，步骤92包括：根据指示信息，确定第一同步信号块在同步信号块的发送周期内的目标时域传输位置；其中，同步信号块的发送周期为N个5ms，N为大于1的正整数。在同步信号块的发送周期内，将第一同步信号块在不同SSB burst set(5ms，如从每个10ms帧的起始位置或者从5ms半帧的起始位置开始的5ms持续时间)内的默认时域传输位置均确定为第一同步信号块的候选时域传输位置，网络设备可以在一个SSB burst set内仅发送系统信息或无线资源控制(Radio Resource Control，RRC)信令指示需要发送的SSB中的部分SSB，也就是说不要求需要发送的全部SSB在一个5ms的窗内完成发送。
其中值得指出的是，上述指示信息包括以下至少一项：
用于指示目标时域传输位置是否为第一同步信号块的默认时域传输位置的第一指示信息；其中，第一指示信息用于指示第一同步信号块是否在其默认时域传输位置发送；
用于指示第一同步信号块的候选时域传输位置的时域资源的第二指示信息；其中，第二指示信息用于指示第一同步信号块所有候选时域传输位置所在时域资源的OFDM符号、slot、子帧或帧的编号。
用于指示目标时域传输位置的时域资源的第三指示信息；其中，第二指示信息用于指示第一同步信号块实际发送位置所在时域资源的OFDM符号、slot、子帧或帧的编号；
以及，用于指示目标时域传输位置与第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
其中，上述第四指示信息指示的偏移量包括时域偏移值和/或同步信号块索引号偏移值。
可选地，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：(2+14*n+14*5)，或者，(8+14*n+14*5)，其中，n＝0,1,2,3。
本公开实施例的同步信号块的传输方法，可以在一个时间段内的不同时间点对同步信号块进行灵活的传输，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
以上实施例介绍了不同场景下的同步信号块的传输方法，下面将结合附图对与其对应的终端做进一步介绍。
如图10所示，本公开实施例的终端1000，能实现上述实施例中接收第一同步信号块；其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息；根据指示信息，确定第一同步信号块的目标时域传输位置方法的细节，并达到相同的效果；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个，该终端1000具体包括以下功能模块：
接收模块1010，用于接收第一同步信号块；其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息；
第二处理模块1020，用于根据指示信息，确定第一同步信号块的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个。
其中，候选时域传输位置包括一个默认时域传输位置，以及至少一个额 外时域传输位置。
其中，额外时域传输位置为：与第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，分组包括至少两个索引号不同的同步信号块。
其中，额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
其中，第二处理模块1020包括：
第二确定子模块，用于根据指示信息，确定第一同步信号块在同步信号块的发送周期内的目标时域传输位置；其中，同步信号块的发送周期为N个5ms，N为大于1的正整数。
其中，指示信息包括以下至少一项：
用于指示目标时域传输位置是否为第一同步信号块的默认时域传输位置的第一指示信息；
用于指示第一同步信号块的候选时域传输位置的时域资源的第二指示信息；
用于指示目标时域传输位置的时域资源的第三指示信息；以及，
用于指示目标时域传输位置与第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
其中，偏移量包括时域偏移值和/或同步信号块索引号偏移值。
可选地，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：(2+14*n+14*5)，或者，(8+14*n+14*5)，其中，n＝0,1,2,3。
值得指出的是，本公开实施例可以在一个时间段内的不同时间点对同步信号块进行灵活的传输，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
需要说明的是，应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分模块通过处理元件调用软件的形 式实现，部分模块通过硬件的形式实现。例如，确定模块可以为单独设立的处理元件，也可以集成在上述装置的某一个芯片中实现，此外，也可以以程序代码的形式存储于上述装置的存储器中，由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些模块可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器，或，一个或多个数字信号处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个模块通过处理元件调度程序代码的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序代码的处理器。再如，这些模块可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
为了更好的实现上述目的，进一步地，图11为实现本公开各个实施例的一种终端的硬件结构示意图，该终端110包括但不限于：射频单元111、网络模块112、音频输出单元113、输入单元114、传感器115、显示单元116、用户输入单元117、接口单元118、存储器119、处理器1110、以及电源1111等部件。本领域技术人员可以理解，图11中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。在本公开实施例中，终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。
其中，射频单元111，用于接收第一同步信号块；其中，第一同步信号块中携带有用于指示目标时域传输位置的指示信息；
处理器1110，用于根据指示信息，确定第一同步信号块的目标时域传输位置；其中，目标时域传输位置为第一同步信号块的至少两个候选时域传输位置中的一个；
本公开实施例可以在一个时间段内的不同时间点对同步信号块进行灵活的传输，避免因错过同步信号块的发送时间而导致的同步信号块无法发送的问题，从而可以提高通信的有效性。
应理解的是，本公开实施例中，射频单元111可用于收发信息或通话过程中，信号的接收和发送，具体的，将来自基站的下行数据接收后，给处理器1110处理；另外，将上行的数据发送给基站。通常，射频单元111包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外，射频单元111还可以通过无线通信系统与网络和其他设备通信。
终端通过网络模块112为用户提供了无线的宽带互联网访问，如帮助用户收发电子邮件、浏览网页和访问流式媒体等。
音频输出单元113可以将射频单元111或网络模块112接收的或者在存储器119中存储的音频数据转换成音频信号并且输出为声音。而且，音频输出单元113还可以提供与终端110执行的特定功能相关的音频输出(例如，呼叫信号接收声音、消息接收声音等等)。音频输出单元113包括扬声器、蜂鸣器以及受话器等。
输入单元114用于接收音频或视频信号。输入单元114可以包括图形处理器(Graphics Processing Unit，GPU)1141和麦克风1142，图形处理器1141对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元116上。经图形处理器1141处理后的图像帧可以存储在存储器119(或其它存储介质)中或者经由射频单元111或网络模块112进行发送。麦克风1142可以接收声音，并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元111发送到移动通信基站的格式输出。
终端110还包括至少一种传感器115，比如光传感器、运动传感器以及其他传感器。具体地，光传感器包括环境光传感器及接近传感器，其中，环境光传感器可根据环境光线的明暗来调节显示面板1161的亮度，接近传感器可在终端110移动到耳边时，关闭显示面板1161和/或背光。作为运动传感器的一种，加速计传感器可检测各个方向上(一般为三轴)加速度的大小，静止时可 检测出重力的大小及方向，可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等；传感器115还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等，在此不再赘述。
显示单元116用于显示由用户输入的信息或提供给用户的信息。显示单元116可包括显示面板1161，可以采用液晶显示器(Liquid Crystal Display，LCD)、有机发光二极管(Organic Light-Emitting Diode，OLED)等形式来配置显示面板1161。
用户输入单元117可用于接收输入的数字或字符信息，以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地，用户输入单元117包括触控面板1171以及其他输入设备1172。触控面板1171，也称为触摸屏，可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板1171上或在触控面板1171附近的操作)。触控面板1171可包括触摸检测装置和触摸控制器两个部分。其中，触摸检测装置检测用户的触摸方位，并检测触摸操作带来的信号，将信号传送给触摸控制器；触摸控制器从触摸检测装置上接收触摸信息，并将它转换成触点坐标，再送给处理器1110，接收处理器1110发来的命令并加以执行。此外，可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板1171。除了触控面板1171，用户输入单元117还可以包括其他输入设备1172。具体地，其他输入设备1172可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
进一步的，触控面板1171可覆盖在显示面板1161上，当触控面板1171检测到在其上或附近的触摸操作后，传送给处理器1110以确定触摸事件的类型，随后处理器1110根据触摸事件的类型在显示面板1161上提供相应的视觉输出。虽然在图11中，触控面板1171与显示面板1161是作为两个独立的部件来实现终端的输入和输出功能，但是在某些实施例中，可以将触控面板1171与显示面板1161集成而实现终端的输入和输出功能，具体此处不做限定。
接口单元118为外部装置与终端110连接的接口。例如，外部装置可以 包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元118可以用于接收来自外部装置的输入(例如，数据信息、电力等等)并且将接收到的输入传输到终端110内的一个或多个元件或者可以用于在终端110和外部装置之间传输数据。
存储器119可用于存储软件程序以及各种数据。存储器119可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等；存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外，存储器119可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。
处理器1110是终端的控制中心，利用各种接口和线路连接整个终端的各个部分，通过运行或执行存储在存储器119内的软件程序和/或模块，以及调用存储在存储器119内的数据，执行终端的各种功能和处理数据，从而对终端进行整体监控。处理器1110可包括一个或多个处理单元；可选的，处理器1110可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1110中。
终端110还可以包括给各个部件供电的电源1111(比如电池)，可选的，电源1111可以通过电源管理系统与处理器1110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。
另外，终端110包括一些未示出的功能模块，在此不再赘述。
可选的，本公开实施例还提供一种终端，包括处理器1110，存储器119，存储在存储器119上并可在所述处理器1110上运行的计算机程序，该计算机程序被处理器1110执行时实现上述同步信号块的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，终端可以是无线终端也可以是有线终端，无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network， RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，在此不作限定。
本公开实施例还提供一种计算机可读存储介质，计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述同步信号块的传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的计算机可读存储介质，如只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直 接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
此外，需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行，某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言，能够理解本公开的方法和装置的全部或者任何步骤或者部件，可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中，以硬件、固件、软件或者它们的组合加以实现，这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编程技能就能实现的。
因此，本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此，本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来 实现。也就是说，这样的程序产品也构成本公开，并且存储有这样的程序产品的存储介质也构成本公开。显然，所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是，在本公开的装置和方法中，显然，各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且，执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行，但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。
以上所述的是本公开的可选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本公开所述的原理前提下还可以作出若干改进和润饰，这些改进和润饰也在本公开的保护范围内。

Claims (31)

  1. 一种同步信号块的传输方法，应用于网络设备侧，包括：
    确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，所述目标时域传输位置为所述第一同步信号块的至少两个候选时域传输位置中的一个；
    通过所述目标时域传输位置，发送所述第一同步信号块。
  2. 根据权利要求1所述的同步信号块的传输方法，其中，所述候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
  3. 根据权利要求2所述的同步信号块的传输方法，其中，所述额外时域传输位置为：与所述第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，所述分组包括至少两个索引号不同的同步信号块。
  4. 根据权利要求2所述的同步信号块的传输方法，其中，所述额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
  5. 根据权利要求1或2所述的同步信号块的传输方法，其中，确定第一同步信号块在下行信号发送时间内的目标时域传输位置的步骤，包括：
    在同步信号块的发送周期内，若侦听到信道空闲，则在信道占用时间内确定所述第一同步信号块的目标时域传输位置；其中，所述第一同步信号块的发送周期为N个5ms，N为大于1的正整数。
  6. 根据权利要求5所述的同步信号块的传输方法，其中，若侦听到信道空闲，则在信道占用时间内确定所述第一同步信号块的目标时域传输位置的步骤，包括：
    若侦听到信道空闲，则确定所述第一同步信号块在所述同步信号块的发送周期内是否发送完成；
    若所述第一同步信号块未完成发送，则在所述信道占用时间内确定所述第一同步信号块的目标时域传输位置。
  7. 根据权利要求1所述的同步信号块的传输方法，其中，所述第一同步 信号块中携带有用于指示所述目标时域传输位置的指示信息。
  8. 根据权利要求7所述的同步信号块的传输方法，其中，所述指示信息包括以下至少一项：
    用于指示所述目标时域传输位置是否为所述第一同步信号块的默认时域传输位置的第一指示信息；
    用于指示所述第一同步信号块的候选时域传输位置的时域资源的第二指示信息；
    用于指示所述目标时域传输位置的时域资源的第三指示信息；以及，
    用于指示所述目标时域传输位置与所述第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
  9. 根据权利要求8所述的同步信号块的传输方法，其中，所述偏移量包括时域偏移值和/或同步信号块索引号偏移值。
  10. 根据权利要求1所述的同步信号块的传输方法，其中，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：2+14*n+14*5，或者，8+14*n+14*5，其中，n＝0,1,2,3。
  11. 一种网络设备，包括：
    第一处理模块，用于确定第一同步信号块在下行信号发送时间内的目标时域传输位置；其中，所述目标时域传输位置为所述第一同步信号块的至少两个候选时域传输位置中的一个；
    发送模块，用于通过所述目标时域传输位置，发送所述第一同步信号块。
  12. 根据权利要求11所述的网络设备，其中，所述候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
  13. 根据权利要求11或12所述的网络设备，其中，所述第一处理模块包括：
    第一确定子模块，用于在同步信号块的发送周期内，若侦听到信道空闲，则在信道占用时间内确定所述第一同步信号块的目标时域传输位置；其中，所述第一同步信号块的发送周期为N个5ms，N为大于1的正整数。
  14. 根据权利要求13所述的网络设备，其中，所述第一确定子模块包括：
    第一确定单元，用于若侦听到信道空闲，则确定所述第一同步信号块在 所述同步信号块的发送周期内是否发送完成；
    第二确定单元，用于若所述第一同步信号块未完成发送，则在所述信道占用时间内确定所述第一同步信号块的目标时域传输位置。
  15. 根据权利要求11所述的网络设备，其中，所述第一同步信号块中携带有用于指示所述目标时域传输位置的指示信息。
  16. 根据权利要求11所述的网络设备，其中，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：2+14*n+14*5，或者，8+14*n+14*5，其中，n＝0,1,2,3。
  17. 一种网络设备，包括处理器、存储器以及存储于所述存储器上并可在所述处理器上运行的计算机程序，所述处理器执行所述计算机程序时实现如权利要求1至10任一项所述的同步信号块的传输方法的步骤。
  18. 一种同步信号块的传输方法，应用于终端侧，包括：
    接收第一同步信号块；其中，所述第一同步信号块中携带有用于指示所述目标时域传输位置的指示信息；
    根据所述指示信息，确定所述第一同步信号块的目标时域传输位置；其中，所述目标时域传输位置为所述第一同步信号块的至少两个候选时域传输位置中的一个。
  19. 根据权利要求18所述的同步信号块的传输方法，其中，所述候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
  20. 根据权利要求19所述的同步信号块的传输方法，其中，所述额外时域传输位置为：与所述第一同步信号块所属分组内的其他同步信号块的默认时域传输位置中的至少一个；其中，所述分组包括至少两个索引号不同的同步信号块。
  21. 根据权利要求19所述的同步信号块的传输方法，其中，所述额外时域传输位置为：除全部同步信号块的默认时域传输位置之外的时域传输位置中的一个。
  22. 根据权利要求18或19所述的同步信号块的传输方法，其中，根据所述指示信息，确定所述第一同步信号块的目标时域传输位置的步骤，包括：
    根据所述指示信息，确定所述第一同步信号块在同步信号块的发送周期 内的目标时域传输位置；其中，所述同步信号块的发送周期为N个5ms，N为大于1的正整数。
  23. 根据权利要求18所述的同步信号块的传输方法，其中，所述指示信息包括以下至少一项：
    用于指示所述目标时域传输位置是否为所述第一同步信号块的默认时域传输位置的第一指示信息；
    用于指示所述第一同步信号块的候选时域传输位置的时域资源的第二指示信息；
    用于指示所述目标时域传输位置的时域资源的第三指示信息；以及，
    用于指示所述目标时域传输位置与所述第一同步信号块的默认时域传输位置的偏移量的第四指示信息。
  24. 根据权利要求23所述的同步信号块的传输方法，其中，所述偏移量包括时域偏移值和/或同步信号块索引号偏移值。
  25. 根据权利要求18所述的同步信号块的传输方法，其中，在5ms的半帧内，所述目标时域传输位置的起始正交频分复用OFDM符号的编号为：2+14*n+14*5，或者，8+14*n+14*5，其中，n＝0,1,2,3。
  26. 一种终端，包括：
    接收模块，用于接收第一同步信号块；其中，所述第一同步信号块中携带有用于指示所述目标时域传输位置的指示信息；
    第二处理模块，用于根据所述指示信息，确定所述第一同步信号块的目标时域传输位置；其中，所述目标时域传输位置为所述第一同步信号块的至少两个候选时域传输位置中的一个。
  27. 根据权利要求26所述的终端，其中，所述候选时域传输位置包括一个默认时域传输位置，以及至少一个额外时域传输位置。
  28. 根据权利要求26或27所述的终端，其中，所述第二处理模块包括：
    第二确定子模块，用于根据所述指示信息，确定所述第一同步信号块在同步信号块的发送周期内的目标时域传输位置；其中，所述同步信号块的发送周期为N个5ms，N为大于1的正整数。
  29. 根据权利要求26所述的终端，其中，在5ms的半帧内，所述目标时 域传输位置的起始正交频分复用OFDM符号的编号为：2+14*n+14*5，或者，8+14*n+14*5，其中，n＝0,1,2,3。
  30. 一种终端，包括处理器、存储器以及存储于所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求18至25中任一项所述的同步信号块的传输方法的步骤。
  31. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至10中任一项所述的同步信号块的传输方法的步骤，或者，实现如权利要求18至25中任一项所述的同步信号块的传输方法的步骤。
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