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WO2018210263A1 - Procédé et appareil de transmission d'un signal de synchronisation - Google Patents

Procédé et appareil de transmission d'un signal de synchronisation Download PDF

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Publication number
WO2018210263A1
WO2018210263A1 PCT/CN2018/087070 CN2018087070W WO2018210263A1 WO 2018210263 A1 WO2018210263 A1 WO 2018210263A1 CN 2018087070 W CN2018087070 W CN 2018087070W WO 2018210263 A1 WO2018210263 A1 WO 2018210263A1
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WIPO (PCT)
Prior art keywords
synchronization signal
signal block
time slot
symbols
mapping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/087070
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English (en)
Chinese (zh)
Inventor
刘瑾
欧⋅凯文⋅卡尔⋅金
袁璞
向铮铮
罗俊
沈祖康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Priority claimed from CN201710510737.1A external-priority patent/CN108880606B/zh
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of WO2018210263A1 publication Critical patent/WO2018210263A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method for transmitting a synchronization signal, a network device, and a terminal device.
  • the network side periodically broadcasts a downlink synchronization signal to the coverage area in a predetermined manner by the base station, so that the terminal equipment that needs to access the network can obtain synchronization of the downlink communication link before accessing the network. And correctly obtain the communication system information required to access the network.
  • the beam has a configurable mapping relationship with the SS block.
  • the base station transmits different SS blocks through each of the multiple beams, or two beams can transmit the same SS block.
  • the SS block includes a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols.
  • a Synchronization Signal burst (SS burst) includes a plurality of SS blocks. In other words, the SS block is transmitted by time-frequency resources mapped in the SS burst.
  • the UE After the user equipment (English: User Equipment, UE) completes the cell search process, the UE has obtained downlink synchronization with the cell. At this time, the UE needs to detect the SS block, and the system information obtained from the SS block can know how the cell is configured. In order to access the cell and work correctly within the cell.
  • UE User Equipment
  • Multiple SS blocks transmitted in one SS burst contain the same information.
  • the terminal device needs to separately perform descrambling, cyclic shifting, and subsequent protocol processing on data transmitted in multiple SS blocks. Therefore, the process of performing signal processing on the detected multiple SS blocks by the UE is complicated and time consuming, resulting in a long cell access time of the UE.
  • the embodiment of the present application provides a method for transmitting a synchronization signal, which is used to alleviate the problem that a cell access time is long because the UE cannot determine whether multiple SS blocks belong to the same SS burst.
  • a method of transmitting a synchronization signal comprising:
  • the network device generates a first synchronization signal block packet and a second synchronization signal block packet, wherein the first synchronization signal block packet includes m synchronization signal blocks, and the second synchronization signal block packet includes n synchronization signal blocks, wherein m, n are positive integers greater than or equal to 2;
  • mapping n synchronization signal blocks in the second synchronization signal block group into another y symbols, where y 7n, between any two synchronization signal blocks in the second synchronization signal block group after mapping
  • the number of symbols of the phase difference belongs to the first set, and between one of the mapped synchronization signal blocks in the second synchronization signal block group and one of the synchronization signal blocks in the first synchronization signal block group after the mapping
  • the number of symbols of the difference belongs to the second set, and the values in the second set do not coincide with the values in the first set;
  • the network device sends the synchronization signal block in the first synchronization signal block group and the synchronization signal block in the second synchronization signal block group by using the mapped time-frequency resource.
  • the number of symbols that are different between two synchronization signal blocks in the same synchronization signal block group in the time domain belongs to the first set, and two synchronizations in different synchronization signal block groups The number of symbols that differ between signal blocks does not belong to the first set.
  • the terminal device may confirm whether the two synchronization signal blocks belong to the same synchronization signal block group according to the number of symbols of the difference between the two synchronization signal blocks when detecting the plurality of synchronization signal blocks.
  • the terminal device can then obtain a plurality of synchronization signal blocks belonging to the same synchronization signal block group, and simplify the processing of the plurality of synchronization signal blocks belonging to the same synchronization signal block group, thereby simplifying the signal processing flow and shortening the processing cost of processing the synchronization signal block. Time and processing resources.
  • the terminal device can thereby obtain the system information carried in the synchronization signal block more quickly, and shorten the network access time.
  • the value included in the first set is an even number
  • the value included in the second set is an odd number
  • the arrangement of the first set and the second set is advantageous for simplifying the terminal device to confirm whether the two sync signal blocks belong to the same sync signal block group.
  • the terminal device After determining the number of symbols of the phase difference, the terminal device determines whether the number of symbols of the phase difference is an even number. If the number of difference symbols is an even number, the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet.
  • m and n have a value of 4
  • x and y have a value of 28.
  • each time slot includes 7 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the second synchronization signal block maps the second synchronization signal block in the second synchronization signal block group on the 2-5th symbol of the 4th time slot of the consecutive 8 time slots Mapping the fourth synchronization signal block in the second synchronization signal block packet to the consecutive 8 time slots on the 2-5th symbol of the 6th time slot of the consecutive 8 time slots On the 2-5th symbol of the 8th time slot.
  • each time slot includes 14 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the second synchronization signal block maps the third synchronization signal block in the second synchronization signal block group on the 9th to 12th symbols of the second time slot of the consecutive 4 time slots Mapping the fourth synchronization signal block in the second synchronization signal block packet to the consecutive 4 time slots on the 9th to 12th symbols of the third time slot of the consecutive 4 time slots On the 9th to 12th symbols of the 4th time slot.
  • the first set includes the following values 14, 28, 42 including the following values 7, 21, 35, 49.
  • each time slot includes 14 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the fourth synchronization signal block in the second synchronization signal block group is mapped on the 7-10th symbol of the fourth time slot, the first time slot, the second time slot, and the third
  • the time slot and the fourth time slot are 4 consecutive time slots.
  • the first set includes the following values: 4, 9, 13, 17, and the second set includes the following values: 11, 15, and 19.
  • each time slot includes 14 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • the fourth synchronization signal block in the first synchronization signal block group is mapped on the 8th to 11th symbols of the second time slot;
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the fourth synchronization signal block in the second synchronization signal block group is mapped on the 8th to 11th symbols of the fourth time slot, the first time slot, the second time slot, and the third time
  • the time slot and the fourth time slot are 4 consecutive time slots.
  • the first set includes the following values: 4, 11, 15, 19, and the second set includes the following values: 9, 13, and 17.
  • the value included in the first set is less than a predetermined threshold, and the value included in the second set is greater than a predetermined threshold.
  • the arrangement of the first set and the second set is advantageous for simplifying the terminal device to confirm whether the two sync signal blocks belong to the same sync signal block group.
  • the terminal device After determining the number of symbols of the phase difference, the terminal device determines whether the number of symbols of the phase difference exceeds a predetermined threshold. If the number of symbols of the phase difference does not exceed the predetermined threshold, the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet.
  • m and n have a value of 4
  • x and y have a value of 28.
  • the predetermined threshold is a positive integer greater than or equal to 21.
  • each time slot includes 7 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • the fourth synchronization signal block in the block group is mapped on the 1-4th symbol of the fourth time slot, the first time slot, the second time slot, the third time slot, and the fourth time
  • the slots are consecutive time slots;
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the fourth synchronization signal block in the block packet is mapped on the 1-4th symbol of the eighth time slot, wherein the fifth time slot, the sixth time slot, the seventh time slot, and the eighth The time slots are consecutive time slots, and the fourth time slot and the fifth time slot are separated by at least 2 time slots.
  • each time slot includes 14 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the first synchronization signal block is grouped.
  • m sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the second a fourth synchronization signal block in the synchronization signal block packet is mapped on the 7-10th symbol of the fourth time slot, wherein the third time slot and the fourth time slot are consecutive time slots, and At least one time slot is separated between the second time slot and the third time slot.
  • the first synchronization signal block is grouped.
  • m sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the first synchronization signal block is grouped.
  • m sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the second a fourth synchronization signal block in the synchronization signal block packet is mapped on the 7-10th symbol of the fourth time slot, wherein the third time slot and the fourth time slot are consecutive time slots, and The second time slot and the third time slot are separated by at least one time slot.
  • the first synchronization signal block is grouped.
  • m sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the predetermined threshold is a positive integer greater than 12 and less than 18.
  • each time slot includes 14 symbols, and the m in the first synchronization signal block group is grouped.
  • the sync signal blocks are mapped into x symbols, including:
  • mapping the n synchronization signal blocks in the second synchronization signal block group to the other y symbols including:
  • the first synchronization signal block group and the second synchronization signal block group are mapped with symbols occupying the first synchronization signal block group and the second synchronization signal block group.
  • the first 5 milliseconds in the synchronization signal pulse set transmission period, and the transmission period of the synchronization signal pulse set is configured as one of the following: 5 milliseconds, 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, and 160 milliseconds.
  • a method of transmitting a synchronization signal including:
  • the terminal device detects the first synchronization signal block and the second synchronization signal block in a transmission period of a synchronization signal pulse set
  • the terminal device determines that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group.
  • the value included in the predetermined set is an even number.
  • the value included in the predetermined set is less than a predetermined threshold.
  • the sending period of the synchronization signal pulse set is configured as one of the following: 5 milliseconds, 10 milliseconds, 20 milliseconds, 40 milliseconds, 80 milliseconds, and 160 milliseconds, the synchronization signal block And the second synchronization signal block is detected by the terminal device in the first 5 milliseconds of the synchronization signal pulse set transmission period.
  • a network device having the functionality to implement the method of the first aspect described above or any one of the possible implementations of the first aspect described above.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • a computer storage medium for storing computer software instructions for use in the network device, including any one of the possible implementations of the first aspect or the first aspect described above. program.
  • a terminal device having the function of implementing the method of the second aspect described above or any one of the possible implementations of the second aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • a computer storage medium for storing computer software instructions for use in the terminal device, including any one of the possible implementations of the second aspect or the second aspect above. program.
  • the embodiment of the present application provides a communication system, including the network device according to any one of the possible implementations of the third aspect or the third aspect, and any one of the fifth aspect or the fifth aspect The terminal device described in the implementation manner.
  • FIG. 1 is a schematic diagram of a network system applied to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an SS block packet according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a resource mapping manner of an SS block packet according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application
  • FIG. 5 is a flowchart of another method for transmitting a synchronization signal according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of another resource mapping manner provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • 15 is a schematic diagram of in-band interference provided by an embodiment of the present application.
  • FIG. 16 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 18 is a schematic diagram of another resource mapping manner according to an embodiment of the present disclosure.
  • FIG. 19 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application.
  • FIG. 20 is a schematic diagram of a resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 21 is a schematic diagram of another resource mapping when a base station sends an SS block according to an embodiment of the present disclosure
  • FIG. 22 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 23 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 24 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 25 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 26 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 27 is a schematic diagram of another resource mapping of a base station when sending an SS block according to an embodiment of the present disclosure
  • FIG. 28 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application.
  • 29 is a schematic diagram of in-band interference provided by an embodiment of the present application.
  • FIG. 30 is a schematic diagram of another resource mapping when a base station sends an SS block according to an embodiment of the present disclosure
  • FIG. 31 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 32 is a schematic structural diagram of another network device according to an embodiment of the present disclosure.
  • FIG. 33 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 34 is a schematic structural diagram of another terminal device according to an embodiment of the present application.
  • FIG. 35 is a schematic diagram of a resource mapping manner of a synchronization signal block according to an embodiment of the present disclosure.
  • FIG. 36 is a schematic diagram of another resource mapping manner of a synchronization signal block according to an embodiment of the present disclosure.
  • FIG. 37 is a schematic diagram of another resource mapping manner of a synchronization signal block according to an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a network system to which the embodiment of the present application is applied.
  • network system 100 can include network device 102 and terminal devices 104, 106, 108, 110, 112, and 114, wherein the network device and the terminal device are connected by wireless.
  • FIG. 1 is only an example in which the network system includes a network device, but the embodiment of the present invention is not limited thereto.
  • the system may further include more network devices; similarly, the system may also include more Terminal Equipment.
  • a terminal device may also refer to a UE, an access terminal, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, and a user agent.
  • the terminal device may also be a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a future evolved public land mobile network (Public Land) Mobile network, PLMN) Terminal devices in the network, etc.
  • Public Land Public Land
  • the terminal device may also be a wearable device.
  • Wearable devices also known as wearable smart devices, are a general term for applying wearable technology to intelligently design everyday wearable devices and develop wearable devices such as glasses, gloves, watches, apparel, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable devices are more than just a hardware device, but they also implement powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-size, non-reliable smartphones for full or partial functions, such as smart watches or smart glasses, and focus on only one type of application, and need to work with other devices such as smartphones. Use, such as various smart bracelets for smart signs monitoring, smart jewelry, etc.
  • the structure and processing flow of the terminal device are described by taking the UE as an example.
  • the network device may be a device for communicating with the terminal device, and the network device may be a base station in a Global System of Mobile communication (GSM) or a Code Division Multiple Access (CDMA) system (Base Transceiver) Station, BTS), may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in a Long Term Evolution (LTE) system.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • BTS Base Transceiver
  • NodeB NodeB
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • Evolutional Node B, eNB or eNodeB which may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a base station (gNB or gNodeB) in a future 5G network.
  • CRAN Cloud Radio Access Network
  • gNB Cloud Radio Access Network
  • a SS block group contains multiple SS blocks.
  • an SS block packet may be a Synchronization Signal burst (SS burst).
  • SS burst Synchronization Signal burst
  • one SS block packet is mapped on at least 2 slots (English: slot).
  • an SS block includes a primary synchronization signal (PSS) of 1 OFDM symbol or a new Radio Primary Synchronization Signal (NR-PSS), and 1 OFDM symbol.
  • PSS primary synchronization signal
  • NR-PSS Radio Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • NR-SSS New Radio Secondary Synchronization Signal
  • physical broadcast channel of 2 OFDM symbols (English: Physical Broadcast Channel, PBCH) Or a new wireless physical broadcast channel (English: New Radio Physical Broadcast Channel, NR-PBCH).
  • NR-PSS and NR-SSS can respectively have the functions of PSS and SSS in a legacy standard (for example, LTE).
  • NR-PSS can be used to determine OFDM symbol timing, frequency synchronization, slot timing, and cell ID within a cell group; NR-SSS can be used to determine frame timing, cell group, etc., or, NR-PSS and NR-SSS It can also have different functions from the current PSS and SSS, which is not limited by the embodiment of the present application.
  • the NR-PSS and the NR-SSS may also adopt the same or different sequences as the current PSS and the SSS, and the embodiment of the present invention is not limited thereto.
  • the NR-PBCH may have the same or different functions as the PBCH in the traditional standard (for example, LTE), which is not limited by the embodiment of the present invention.
  • the NR-PBCH may carry a Master Information Block (MIB).
  • MIB Master Information Block
  • the simplified processing may be performed on multiple SS blocks belonging to the same SS block packet, for example, multiple demodulated processes.
  • SS block is merged (English: easy soft combining).
  • the network device sends the SS block
  • the physical layer performs resource mapping on the SS block in the same SS block group. Some resource mapping modes of the network device when sending the SS block will cause the UE to determine whether the two received SS blocks belong to the same SS block group or belong to different SS block packets when receiving the SS block. As shown in FIG.
  • the four SS blocks of the first SS block group are respectively mapped to the 2-5th OFDM symbol of slot 1, the 9th-12th OFDM symbol of slot 1, and the 2nd to 5th of slot 2.
  • OFDM symbols, 9th-12th OFDM symbols of slot 2; 4 SS blocks of the second SS block group are mapped to the 2nd to 5th OFDM symbols of slot 3, and the 9th to 12th OFDM symbols of slot 3
  • every two SS blocks are separated by 3 OFDM symbols.
  • the soft bit data obtained by demodulating the two SS blocks cannot be combined, and each SS block needs to be separately decoded, cyclically shifted, and the like.
  • the above resource mapping method will cause subsequent signal processing to be more complicated, which in turn affects the performance of the communication system.
  • An embodiment of the present application provides a method for transmitting a synchronization signal.
  • the network device When a network device sends an SS block, the network device performs resource mapping on an SS block in an SS block group according to a predetermined resource mapping manner. Therefore, when the terminal device receives the SS block, it is confirmed whether the plurality of SS blocks belong to the same SS block group according to the relative positional relationship between the plurality of SS blocks, thereby simplifying subsequent processing.
  • FIG. 4 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application.
  • the flowchart describes a process of transmitting a synchronization signal by a network device taking a base station as an example from the perspective of a base station.
  • the working principle and function of the network device are introduced by taking a base station as an example.
  • Step 41 The network device generates a first synchronization signal block packet and a second synchronization signal block packet.
  • the first synchronization signal block group includes m synchronization signal blocks
  • the second synchronization signal block group includes n synchronization signal blocks, where m and n are positive integers greater than or equal to 2.
  • the values of m and n may be the same or different, and are not limited in this application.
  • the structure of the sync signal block can be referred to FIG. 2, but is not limited to the four possibilities shown in FIG. 2.
  • the above additional y symbols refer to other symbols different from x symbols, and there are no coincident symbols in x symbols and y symbols.
  • the first set contains at least one value
  • the second set contains at least one value.
  • the total number of values contained in the first set may or may not be equal to the total number of values contained in the second set.
  • the fact that the values in the second set do not coincide with the values in the first set means that there is no value present in both the first set and the second set. In other words, if a value exists in the first set, it is unlikely that the value will exist in the second set, and vice versa. It can also be understood that there is no intersection between the first set and the second set.
  • Step 43 The network device sends the synchronization signal block in the first synchronization signal block group and the synchronization signal block in the second synchronization signal block group by using the mapped time-frequency resource.
  • the sync signal block packet is a sync signal pulse (English: ss burst). Multiple sync signal block packets can be transmitted in a ss burst set.
  • the synchronization signal block in the first synchronization signal block group and the synchronization signal block in the second synchronization signal block group occupy the first 5 ms in the ss burst set transmission period in the time domain.
  • the ss burst set transmission period in the communication system is configurable and can be configured as one of the following: 5 milliseconds (English: ms), 10 ms, 20 ms, 40 ms, 80 ms, 160 ms.
  • the method for transmitting the synchronization signal shown in FIG. 4 is applicable to communication systems of various frequency points, for example, a communication system with a subcarrier spacing of 15 kHz, a communication system with a subcarrier spacing of 30 kHz, and a subcarrier spacing of 120 kHz.
  • Communication system communication system with subcarrier spacing of 240 kHz.
  • the number of symbols that are different between two synchronization signal blocks in the same synchronization signal block group in the time domain belongs to the first set, and two synchronizations in different synchronization signal block groups The number of symbols that differ between signal blocks does not belong to the first set.
  • the terminal device may confirm whether the two synchronization signal blocks belong to the same synchronization signal block group according to the number of symbols of the difference between the two synchronization signal blocks when detecting the plurality of synchronization signal blocks.
  • the terminal device can then obtain a plurality of synchronization signal blocks belonging to the same synchronization signal block group, and simplify the processing of the plurality of synchronization signal blocks belonging to the same synchronization signal block group, thereby simplifying the signal processing flow and shortening the processing cost of processing the synchronization signal block. Time and processing resources.
  • the terminal device can thereby obtain the system information carried in the synchronization signal block more quickly, and shorten the network access time.
  • FIG. 5 is a flowchart of another method for transmitting a synchronization signal according to an embodiment of the present application.
  • the flowchart describes a process in which a terminal device receives a synchronization signal by using a UE as an example from the perspective of a terminal device.
  • the working principle and function of the terminal device are introduced by taking the UE as an example.
  • Step 51 The terminal device detects the first synchronization signal block and the second synchronization signal block in a transmission period of an ss burst set.
  • the terminal device detects a plurality of synchronization signal blocks in an ss burst set transmission period by blind detection. Two synchronization signal blocks are selected from a plurality of synchronization signal blocks obtained by blind detection, and it is confirmed whether the selected two synchronization signal blocks belong to the same synchronization signal block group. Thereby, it is possible to determine a plurality of sync signal blocks respectively included in each sync signal block packet in the transmission period of one sync signal pulse set.
  • the network device maps the two sync signal block packets to the first 5 microseconds in the transmission period of the sync signal pulse set.
  • the terminal device detects a plurality of synchronization signal blocks in the first 5 ms of the transmission period of each ss burst set.
  • Step 52 The terminal device determines the number of symbols between the time domain resource occupied by the first synchronization signal block and the time domain resource occupied by the second synchronization signal block.
  • Step 53 The number of symbols of the phase difference determined by the terminal device determining step 52 belongs to a predetermined set. If the number of symbols of the difference belongs to a predetermined set, step 54 is performed.
  • the predetermined set is the first set in the embodiment shown in FIG.
  • Step 54 The terminal device determines that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group.
  • the terminal device may perform simplified processing on multiple synchronization signal blocks belonging to the same synchronization signal block group, for example, soft combining the demodulation results of the multiple synchronization signal blocks, and performing subsequent protocol on the result of the soft combining Processing, etc., without performing separate decoding, cyclic shifting, and subsequent protocol processing for each sync block.
  • step 53 if the number of symbols of the phase difference does not belong to the predetermined set, step 55 is performed, the terminal device determines that the first synchronization signal block and the second synchronization signal block belong to different synchronization signal blocks. Grouping.
  • the terminal device when it detects multiple synchronization signal blocks in a transmission period of a synchronization signal pulse set, it may confirm two synchronization signals according to whether the number of symbols of the difference between the two synchronization signal blocks belongs to a predetermined set. Whether the blocks belong to the same sync signal block group, thereby further obtaining a plurality of sync signal blocks belonging to the same sync signal block group.
  • the terminal device can perform a simplified signal processing procedure on a plurality of synchronization signal blocks belonging to the same synchronization signal block group. Since the signal processing flow is simplified, the time and processing resources for processing the synchronization signal block are shortened, so that the system information carried in the synchronization signal block can be obtained more quickly, and the network access time is shortened.
  • a plurality of resource mapping manners of the synchronization signal block provided by the embodiment of the present application are described below with reference to FIG. 6-30. These resource mapping methods can be applied to step 42 of FIG.
  • the resource mapping manner shown in Figures 6-30 is applicable to the case where each synchronization signal block packet includes 4 synchronization signal blocks, each synchronization signal block packet is mapped to 28 symbols, that is, the values of m and n are 4, the case where the value of x and y is 28.
  • the terminal device can confirm whether the two synchronization signal blocks belong to the same synchronization according to whether the detected number of symbols of the difference between the two synchronization signal blocks belongs to a predetermined set. Signal block grouping.
  • FIG. 6 and FIG. 7 are schematic diagrams of a resource mapping manner provided by an embodiment of the present application.
  • the two resource mapping schemes are applicable to different slot formats respectively.
  • the resource mapping scheme shown in FIG. 6 is applicable to a scenario in which a time slot used by a communication system includes 7 symbols
  • the resource mapping scheme shown in FIG. 7 is applicable to The time slot used by the communication system contains a scene of 14 symbols.
  • the number of symbols of any two synchronization signal blocks in the same synchronization signal block group belongs to the first set, and the two synchronization signal blocks belonging to different synchronization signal block groups belong to the same.
  • the number of symbols of the phase difference belongs to the second set that does not coincide with the first set, and the values contained in the first set are even numbers, and the values contained in the second set are odd numbers.
  • the resource mapping scheme provided in Figure 6 is applicable to scenarios in which the time slot used by the communication system contains 7 symbols.
  • the network device maps the first synchronization signal block packet and the second synchronization signal block packet onto different 4 time slots, for example, onto 4 time slots distributed in an interval of 8 consecutive time slots.
  • the following describes the specific resource mapping manner by using the ss burst as an example of the synchronization signal block grouping. It can be understood that in the case where the time slot used by the communication system includes 7 symbols, the subcarrier spacing supported by the communication system in the frequency domain may be 15 kHz. , 30 kHz, 120 kHz, or 240 kHz.
  • slot j to slot j+7 represent eight consecutive time slots.
  • the network device maps the ss block 1 in the ss burst k on the 2-5th symbol of the 1st slot of the consecutive 8 slots, and maps the ss block 2 in the ss burst k to the consecutive 8 Mapping the ss block 3 of the ss burst k to the 2-5th symbol of the 5th slot of the consecutive 8 slots on the 2-5th symbol of the 3rd slot in the slot Up, the ss block 4 in the ss burst k is mapped on the 2-5th symbol of the 7th slot in the consecutive 8 slots.
  • the network device maps ss block 1 of ss burst k+1 to the 2-5th symbol of the 2nd slot of the consecutive 8 slots, and maps ss block 2 of ss burst k+1 to Mapping the ss block 3 of the ss burst k+1 to the sixth of the consecutive 8 slots on the 2-5th symbol of the 4th slot of the consecutive 8 slots On the 2-5th symbol of the slot, ss block 4 in ss burst k+1 is mapped on the 2-5th symbol of the 8th slot of the consecutive 8 slots.
  • the eight slots used to transmit ss burst k and ss burst k+1 in Figure 6 occupy a total of one ss burst set in the first 4 ms of the transmission period, indicated by hatching.
  • 6 is a diagram illustrating an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms, and the like.
  • the resource mapping scheme provided in Figure 7 is applicable to scenarios in which the time slot used by the communication system contains 14 symbols.
  • the network device maps the second synchronization signal block packet and the first synchronization signal block packet to different ones of the same 4 time slots.
  • the following describes the specific resource mapping manner by using ss burst as an example of the synchronization signal block grouping. It can be understood that in the case where the time slot used by the communication system includes 14 symbols, the subcarrier spacing supported by the communication system in the frequency domain may be 15 kHz. , 30 kHz, 120 kHz, or 240 kHz.
  • slot i to slot i+3 represents four consecutive time slots.
  • the network device maps the ss block 1 in the ss burst k on the 2-5th symbol of the 1st slot in the consecutive 4 slots, and maps the ss block 2 in the ss burst k to the consecutive 4 slots. Mapping the ss block 3 of the ss burst k to the 2-5th symbol of the 3rd slot of the consecutive 4 slots on the 2-5th symbol of the 2nd slot in the slot Up, the ss block 4 in the ss burst k is mapped on the 2-5th symbol of the 4th slot of the consecutive 4 slots.
  • the network device maps ss block 1 of ss burst k+1 to the 9th-12th symbol of the first time slot of the consecutive 4 time slots, and maps ss block 2 of ss burst k+1 to Mapping the ss block 3 of the ss burst k+1 to the third of the consecutive 4 slots on the 9th to 12th symbols of the second of the consecutive 4 slots On the 9th to 12th symbols of the slot, ss block 4 in ss burst k+1 is mapped on the 9th to 12th symbols of the 4th slot of the consecutive 4 slots.
  • the four slots used to transmit ss burst k and ss burst k+1 in Figure 7 occupy a total of one ss burst set in the first 4 ms of the transmission period, indicated by hatching. 7 is an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms.
  • the number of symbols that differ between the sync signal blocks belonging to the same sync signal block group is an even number.
  • ss block 1 is different from ss block 2 by 14 symbols
  • ss block 1 is different from ss block 3 by 28 symbols
  • ss block 1 is different from ss block 4 by 42.
  • ss burst k+1 ss block 1 differs from ss block 2 by 14 symbols
  • ss block 1 differs from ss block 3 by 28 symbols
  • ss block 1 differs from ss block 4 by 42 symbols.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups is an odd number.
  • ss block 1 in ss burst k is 7 symbols different from ss block 1 in ss burst k+1
  • ss block 1 in ss burst k is 21 symbols out of ss block 2 in ss burst k+1
  • ss Ss block 1 in burst k differs from ss block 3 in ss burst k+1 by 35 symbols
  • ss block 1 in ss burst k differs from ss block 4 in ss burst k+1 by 49 symbols.
  • the number of symbols difference between the synchronization signal blocks in the same synchronization signal block group belongs to the first set, and the values of the first set include: ⁇ 14, 28 , 42 ⁇ .
  • the number of symbols of the difference between the sync signal blocks in the different sync block groups belongs to the second set, and the values of the second set include: ⁇ 7, 21, 35, 49 ⁇ .
  • the resource mapping scheme provided in Figures 6 and 7 is a uniform mapping. Uniform mapping refers to the number of symbols that are different between any two adjacent ss blocks after the resource mapping is completed. For example, in FIG. 6 and FIG. 7, the difference between any two adjacent ss blocks is The number of symbols is 7.
  • the first synchronization signal after mapping is performed.
  • the number of symbols of the difference between any two synchronization signal blocks in the block group is even, and the number of symbols between any two synchronization signal blocks in the second synchronization signal block group after mapping is also an even number, and the mapped The number of symbols separated by one sync signal block in the second sync signal block packet and one sync signal block in the first sync signal block packet after mapping is an odd number.
  • the mapping mode can ensure that when receiving the synchronization signal block, the terminal device can confirm whether the two synchronization signal blocks belong to the same synchronization signal block group according to the number of symbols of the difference between the two synchronization signal blocks, thereby belonging to the same synchronization signal block. Multiple sync blocks in the packet are soft merged to simplify the signal processing flow.
  • the uniform mapping shown in FIG. 6 and FIG. 7 is only an example of the resource mapping.
  • the mapping manner of FIG. 6 or FIG. 7 is slightly adjusted to be changed to a non-uniform mapping manner, as long as the same synchronization signal block grouping is satisfied.
  • the number of symbols of the difference between any two synchronization signal blocks belongs to the first set, and the number of symbols of the difference between the synchronization signal blocks in the different synchronization signal block groups belongs to the second set that does not overlap with the first set.
  • the terminal device can still determine a plurality of synchronization signal blocks belonging to the same synchronization signal block group according to the number of symbols of the difference between the two synchronization signal blocks. For example, referring to FIG. 8, the resource mapping manner shown in FIG.
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource and the detection of the first synchronization signal block are detected. After the number of symbols of the difference between the time domain resources of the second synchronization signal block, if the number of symbols of the phase difference belongs to the first set, it is determined that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group. The values in the first set are all even.
  • the terminal device may adopt a simplified judgment manner, that is, determine whether the number of symbols of the phase difference is an even number.
  • the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet. If the number of symbols of the phase difference is not an even number, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource of the first synchronization signal block is detected and the second synchronization signal block is detected. After the number of symbols of the phase difference between the domain resources, it is not possible to directly determine whether the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group according to whether the number of phase difference symbols is even, but it is necessary to determine the number of symbols of the phase difference. Whether it belongs to the first set: ⁇ 14, 28, 42 ⁇ . If belonging to the first set, it is determined that the first sync signal block and the second sync signal block belong to the same sync signal block group.
  • FIG. 9 is a schematic diagram of another resource mapping manner provided by an embodiment of the present application.
  • the resource mapping scheme shown in FIG. 9 is applicable to a scenario in which a time slot used by a communication system includes 7 symbols.
  • the resource mapping scheme shown in Figures 10 - 14 is applicable to scenarios in which the time slot used by the communication system contains 14 symbols. In the resource mapping manner shown in FIG. 9 to FIG.
  • the number of symbols spaced between any two synchronization signal blocks in the same synchronization signal block group belongs to the first set, and between two synchronization signal blocks in different synchronization signal block groups
  • the number of spaced symbols belongs to a second set that does not overlap the first set, and the value contained in the first set is less than a predetermined threshold, and the value contained in the second set is greater than a predetermined threshold.
  • FIG. 9 is a schematic diagram of a resource mapping manner provided by an embodiment of the present application.
  • the resource mapping scheme presented in Figure 9 is applicable to scenarios in which the time slot used by the communication system contains 7 symbols.
  • the network device maps the first synchronization signal block group to 4 consecutive time slots, and maps the second synchronization signal block group to the other 4 consecutive time slots.
  • the two consecutive four time slots are separated by 2 Time slots.
  • the following uses ss burst as an example of synchronization signal block grouping, and describes a possible specific resource mapping manner in conjunction with FIG. 9. It can be understood that in the case where the time slot used by the communication system includes 7 symbols, possible resource mapping manner It is not limited to the mapping method shown in FIG.
  • slot j to slot j+9 represent 10 consecutive time slots.
  • the ss block starts at the 1st or 2nd symbol of each slot.
  • the network device maps the ss block 1 in the ss burst k on the 2-5th symbol of the 1st slot slot j of the consecutive 10 slots, and maps the ss block 2 in the ss burst k to the consecutive
  • the ss block 3 in the ss burst k is mapped to the 3rd time slot slot in the consecutive 10 time slots.
  • the ss block 4 in the ss burst k is mapped on the 1-4th symbols of the 4th slot slot j+3 of the consecutive 10 slots.
  • the network device maps ss block 1 of ss burst k+1 to the 2-5th symbol of the 7th slot slot j+6 of the consecutive 10 time slots, and ss burst k+1 ss Block 2 maps the ss block 3 of ss burst k+1 in the contiguous 10th on the 1-4th symbol of the 8th slot slot j+7 of the consecutive 10 slots On the 2-5th symbol of the 9th slot slot j+8 in the slot, the ss block 4 in ss burst k+1 is mapped to the 10th slot slot in the consecutive 10 slots. On the 1-4th symbol of j+9.
  • the ten time slots slot j to slot j+9 used to transmit ss burst k and ss burst k+1 in Figure 9 occupy a total of one ss burst set transmission period of the first 2.5 ms, indicated by hatching. 9 is an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms.
  • the network device maps the first synchronization signal block group to 2 consecutive time slots, and maps the second synchronization signal block group to the other 2 On two consecutive time slots, the two consecutive two time slots are separated by one time slot.
  • the following describes the specific resource mapping manner with the ss burst as an example of the synchronization signal block grouping. It can be understood that in the case where the time slot used by the communication system includes 14 symbols, the possible resource mapping manner is not limited to the drawing. The mapping method shown in 10.
  • slot i to slot i+4 represents five consecutive time slots.
  • the network device maps the ss block 1 in the ss burst k on the 2-5th symbol of the 1st slot slot i of the consecutive 5 slots, and maps the ss block 2 in the ss burst k to the consecutive
  • the ss block 3 in the ss burst k is mapped to the second slot slot i+ of the consecutive 5 slots.
  • the ss block 4 in the ss burst k is mapped on the 8th to 11th symbols of the second slot slot i+1 of the consecutive 5 slots.
  • the network device maps ss block 1 of ss burst k+1 to the 2-5th symbol of the 4th slot slot i+3 of the consecutive 5 slots, and ss burst k+1 ss Block 2 maps the 8th to 11th symbols of the 4th slot slot i+3 of the consecutive 5 slots, and maps ss block 3 of ss burst k+1 to the consecutive 5
  • the ss block 4 in ss burst k+1 is mapped to the 5th slot slot in the consecutive 5 slots.
  • the five time slots slot i to slot i+4 used to transmit ss burst k and ss burst k+1 in Figure 10 are shaded using the first 2.5 ms of the ss burst set transmission period. 10 is an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms.
  • the predetermined threshold can be set to 21.
  • the number of symbols that differ between the sync signal blocks belonging to the same sync signal block group is less than a predetermined threshold.
  • a predetermined threshold For example, for each sync signal block in ss burst k in FIG. 9 or FIG. 10, ss block 1 and ss block 2 are different by 6 symbols, and ss block 1 and ss block 3 are 14 symbols apart, ss block 1 It differs from ss block 4 by 20 symbols, both of which are smaller than a predetermined threshold 21.
  • ss block 1 and ss block 2 are different by 6 symbols
  • ss block 1 and ss block 3 are 14 symbols apart
  • ss block 1 It differs from ss block 4 by 20 symbols, both of which are smaller than a predetermined threshold 21.
  • ss block 1 is different from ss block 2 by 6 symbols, and ss block 1 is different from ss block 3 by 14 symbols, ss block 1 differs from ss block 4 by 20 symbols, both of which are less than a predetermined threshold 21.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups exceeds a predetermined threshold.
  • the distance between ss block 4 in ss burst k and ss block 1 in ss burst k+1 in Fig. 9 or Fig. 10 is the closest, which is 22 symbols apart, exceeding a predetermined threshold 21.
  • the advantage of using the resource mapping method shown in FIG. 10 is that the communication system does not prevent the communication system from transmitting data in the same frequency band using the resource mapping method shown in FIG. 9 to avoid in-band interference.
  • the time slot used by the communication system is a time slot containing 14 symbols
  • the resource mapping manner in one time slot is taken as an example for introduction.
  • the manner of distribution between a plurality of time slots in a synchronization signal pulse transmission period is similar to that of FIG. That is, the first synchronization signal block group is mapped onto two consecutive time slots, and the second synchronization signal block group is mapped to the other two consecutive time slots. When the two consecutive two time slots are separated by one. Gap.
  • the resource mapping manner in each of the first, second, fourth, and fifth time slots is as shown in FIG. 11-14.
  • the number of symbols spaced between any two synchronization signal blocks in the same synchronization signal block group belongs to the first set, and two of the different synchronization signal block groups.
  • the number of symbols spaced between the sync signal blocks belongs to a second set that does not overlap the first set, and the value contained in the first set is less than a predetermined threshold, and the value contained in the second set is greater than a predetermined threshold.
  • the predetermined threshold may be set to 21.
  • the network device maps one ss block on the 2-5th symbol in the slot and the other ss block on the 7-10th symbol of the slot.
  • the network device maps one ss block on the 3-6th symbol in the slot and the other ss block on the 8th-11th symbol of the slot.
  • the network device maps one ss block on the 3-6th symbol in the slot and the other ss block on the 7-10th symbol of the slot.
  • the network device maps one ss block on the 4th to 7th symbols in the slot and the other ss block on the 8th to 11th symbols of the slot.
  • the network device may perform non-uniform mapping when performing resource mapping, that is, in one time slot.
  • the character position mapped by the ss block in the first half of the time slot is different from the character position mapped by the ss block in the second half of the time slot.
  • the resource mapping scheme shown in FIG. 9 to FIG. 14 is applicable to communication systems of various frequency points, for example, a communication system with a subcarrier spacing of 15 kHz, a communication system with a subcarrier spacing of 30 kHz, and a communication system with a subcarrier spacing of 120 kHz. A communication system with a subcarrier spacing of 240 kHz. Further, the resource mapping scheme shown in FIG. 9 to FIG. 14 is preferably applied to a communication system with a subcarrier spacing of 30 kHz. This is because, in the scenario where the subcarrier spacing is 30 kHz, the reason why the network device preferably uses non-uniform mapping is mainly to meet the requirements of uplink/downlink switching (DL/UL switching). As shown in FIG.
  • the synchronization signal resource mapping method shown in FIG. 6 is still used to transmit the synchronization signal block group, and the 15 kHz data and the 30 kHz synchronization signal block coexist in In the case of the same frequency band, the network device does not have time to perform a DL/UL switching operation. Therefore, if the synchronization signal resource mapping method shown in FIG. 6 is applied to a scenario in which the subcarrier spacing is 30 kHz, intra-band uplink and downlink interference will occur.
  • resource mapping for a sync signal block in a slot containing 14 symbol scenarios does not prevent operation in a slot containing 7 symbols.
  • the resource mapping mode shown in FIG. 10 allows a DL/UL switching operation to be performed in a slot containing 7 symbols.
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource and the detection of the first synchronization signal block are detected. After the number of symbols of the difference between the time domain resources of the second synchronization signal block, if the number of symbols of the phase difference belongs to the first set, it is determined that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group. The values in the first set are all smaller than a preset threshold. Therefore, after determining the number of symbols of the phase difference, the terminal device can adopt a simplified judgment manner, that is, whether the number of symbols of the phase difference exceeds a predetermined threshold.
  • the terminal device determines that the first sync signal block and the second sync signal block belong to The same sync signal block is grouped. If the number of symbols of the phase difference exceeds a predetermined threshold, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • mapping manners of the two synchronization signal blocks shown in FIG. 9 to FIG. 14 in one slot containing 7 symbols or in a slot containing 14 symbols can also be applied to other scenarios. It is not limited to the scenario in which two synchronization signal block groups are mapped in the ss burst set as shown in FIG. 9 or FIG. 10, that is, the scene is not limited to the group mapping.
  • the mapping method of mapping the two synchronization signal blocks in one time slot separately can also be applied to the non-packet mapping scenario, and is used to solve other technical problems, such as how to reserve symbols for performing uplink and downlink control in one time slot. Resources.
  • FIG. 16 to FIG. 18 are respectively schematic diagrams of another resource mapping scheme provided by the present application. Similar to the resource mapping scheme shown in FIGS. 10-14, in the scenario where the time slot used by the communication system includes 14 symbols, the network device synchronizes 4 of the first synchronization signal block packets when performing resource mapping. The signal blocks are respectively mapped into two consecutive time slots, and the four synchronization signal blocks in the second synchronization signal block group are respectively mapped into two other consecutive time slots. Different from FIG. 10-14, the two sets of consecutive time slots are separated by 0 time slots, that is, the first synchronization signal block group and the second synchronization signal block group are mapped into 4 consecutive time slots.
  • the number of symbols between any two synchronization signal blocks in the same synchronization signal block group after mapping belongs to the first set, and the number of symbols between two synchronization signal blocks in different synchronization signal block groups belongs to the first set.
  • a second set that does not overlap, and the value contained in the first set is less than a predetermined threshold, and the value contained in the second set is greater than a predetermined threshold.
  • the value of the predetermined threshold differs from the mapping scheme of Figures 9-14.
  • FIG. 16 to FIG. 17 respectively illustrate the possible mapping manner of a sync signal block from the angle of one sync signal block packet to the angle of two consecutive time slots.
  • Figure 18 illustrates the manner in which the resource is mapped from the two step signal block groupings to the angle of a synchronization signal pulse transmission period.
  • the resource mapping method shown in FIG. 16 to FIG. 18 is applicable to communication systems of various frequency points, for example, a communication system with a subcarrier spacing of 15 kHz, a communication system with a subcarrier spacing of 30 kHz, and a communication system with a subcarrier spacing of 120 kHz.
  • the resource mapping scheme shown in FIG. 16 to FIG. 18 is preferably applied to a communication system having a subcarrier spacing of 240 kHz and a slot containing 14 symbols.
  • the communication system subcarrier spacing is 240 kHz and the used time slot is a time slot containing 14 symbols
  • two uplink time slots ie, 28 consecutive symbols
  • Four symbols are reserved at the beginning of the first time slot and at the end of the second time slot.
  • at least 6 symbols are reserved at the end of the second time slot in two consecutive time slots after learning the time slot defined by the subcarriers with an interval of 240 kHz.
  • FIG. 16 is a schematic diagram of a mapping manner of a first synchronization signal block group according to an embodiment of the present application.
  • the network device maps the first synchronization signal block in one synchronization signal block group to the 5-8th symbol of the first time slot, and maps the second synchronization signal block in the synchronization signal block group to the first time
  • the third synchronization signal block in the synchronization signal block group is mapped on the 13th to 14th symbols of the first time slot and the 1-2th symbol of the second time slot
  • the fourth synchronization signal block in the synchronization signal block packet is mapped on the 3-6th symbol of the second time slot. That is, one sync signal block packet is mapped in consecutive 16 symbols starting from the 5th symbol of the first slot.
  • FIG. 17 is a schematic diagram of a second mapping manner of a synchronization signal block group according to an embodiment of the present application. The difference from Fig. 16 is that one sync signal block packet is mapped in consecutive 16 symbols starting from the 7th symbol of the first slot.
  • FIG. 18 is a schematic diagram of mapping two synchronization signal block groups into one synchronization signal pulse transmission period according to an embodiment of the present application.
  • the network device maps two sync signal block packets into four consecutive time slots slot i to slot i+3, and maps the first sync signal block to four consecutive time slots using the mapping method shown in FIG.
  • the second synchronization signal block is mapped to the third of the four consecutive time slots by the mapping method shown in FIG.
  • the 4th time slot is slot i+2 to slot i+3.
  • Figure 18 shows an example of ss burst as a grouping of sync signal blocks.
  • Ss block 3 maps the 13th to 14th symbols of slot i and the 1-2th symbol of slot i+1, and maps ss block 4 in ss burst k to the 3-6th symbol of slot i+1 on.
  • the predetermined threshold may be set to be greater than 12 and less than one of the positive integers of 18, such as 14.
  • the number of symbols that differ between the sync signal blocks belonging to the same sync signal block group is less than a predetermined threshold. For example, for each sync signal block in ss burst k, ss block 1 is different from ss block 2 by 4 symbols, ss block 1 and ss block 3 are 8 symbols apart, and ss block 1 and ss block 4 are 12 symbols apart. Both are less than a predetermined threshold 21.
  • ss block 1 For each sync signal block in ss burst k+1, ss block 1 is different from ss block 2 by 4 symbols, ss block 1 is different from ss block 3 by 8 symbols, and ss block 1 is different from ss block 4 by 12 symbols. Both are less than a predetermined threshold 14.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups exceeds a predetermined threshold.
  • a predetermined threshold For example, the distance between ss block 4 in ss burst k and ss block 1 in ss burst k+1 is the closest, and the difference between them is 18 symbols, exceeding a predetermined threshold 14.
  • the network device samples the resource mapping manner shown in FIG. 16 to FIG. 18, and after the resource mapping is performed on the synchronization signal block group, the network device sends the synchronization signal pulse set in the first 1 microsecond in the synchronization signal pulse set transmission period.
  • the above four consecutive time slots slot i to slot i+3 for transmitting the first sync signal block packet and the second sync signal block packet are transmitted as indicated by hatching.
  • 18 is an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms.
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource and the detection of the first synchronization signal block are detected. After the number of symbols that differ between the time domain resources of the second synchronization signal block, if it belongs to the first set, it is determined that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group.
  • the values in the first set are all smaller than a preset threshold.
  • the terminal device may adopt a simplified judgment manner, that is, the terminal device determines whether the number of symbols of the phase difference is less than a predetermined threshold. Since in the resource mapping scheme shown in FIG. 16 to FIG. 18, the predetermined threshold is greater than 12 and less than one positive integer of 18, for example 14, correspondingly, if the number of symbols of the phase difference is less than a predetermined threshold, the terminal device determines The first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block group. If the number of symbols of the phase difference is greater than a predetermined threshold, the terminal device determines that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • the resource mapping manner of other synchronization signal blocks can also be constructed on the basis of FIG. 18, for example, at least one is inserted between the second time slot slot i+1 and the third time slot slot i+2 of FIG. Time slot.
  • the range of values of the predetermined threshold should also be adaptive, and will not be enumerated here.
  • FIG. 19 is a flowchart of a synchronization signal transmission method provided by an embodiment of the present application.
  • FIG. 20 is a schematic diagram of another resource mapping manner provided by an embodiment of the present application. These resource mapping schemes are applicable to scenarios in which the time slot used by the communication system contains 14 symbols.
  • the number of symbols of any two synchronization signal blocks in the same synchronization signal block group belongs to the first set, and different synchronizations
  • the number of symbols of the difference between the two sync signal blocks in the signal block group belongs to the second set in which the first set does not coincide with each other.
  • the first set may contain both even and odd numbers
  • the second set may contain both even and odd numbers, but the first set and the second set do not contain the same value.
  • the resource mapping schemes shown in Figures 20 - 23 are applicable to scenarios in which the time slot used by the communication system contains 14 symbols.
  • the number of symbols of each synchronization signal block belonging to the same synchronization signal block group after mapping belongs to the first set, and the first set includes ⁇ 4, 9, 13, 17 ⁇ ; the synchronization signal blocks belonging to different synchronization signal block groups after mapping are different.
  • the number of symbols belongs to the second set, and the second set includes ⁇ 11, 15, 19 ⁇ .
  • the resource mapping scheme presented in Figures 24-27 is applicable to scenarios in which the time slot used by the communication system contains 14 symbols.
  • the number of symbols of each synchronization signal block belonging to the same synchronization signal block group after mapping belongs to the first set, and the first set includes ⁇ 4, 11, 15, 19 ⁇ ; the synchronization signal blocks belonging to different synchronization signal block groups after mapping are different.
  • the number of symbols belongs to the second set, and the second set includes ⁇ 9, 13, 17 ⁇ .
  • FIG. 19 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application.
  • the flowchart describes a process of transmitting a synchronization signal by a network device taking a base station as an example from the perspective of a base station.
  • the working principle and function of the network device are introduced by taking a base station as an example.
  • Step 191 The base station generates a synchronization signal pulse, wherein the synchronization signal pulse includes a first synchronization signal block, a second synchronization signal block, a third synchronization signal block, and a fourth synchronization signal block.
  • the embodiment of the present application includes at least four synchronization signal blocks in one synchronization signal pulse, and the time domain resource of one synchronization signal pulse includes two slots as an example to describe the transmission synchronization signal.
  • a synchronization signal pulse may include more synchronization signal blocks, such as six or eight synchronization signal blocks, as long as the resource locations of the four synchronization signal block mappings meet the requirements in the embodiment of the present application. It belongs to the scope of protection of this application.
  • Step 192 The base station continuously transmits the first synchronization signal block and the second synchronization signal block on a first time slot, and the third synchronization signal block and the fourth synchronization signal block are in a second time slot. Send continuously.
  • continuous transmission refers to transmission through consecutive OFDM symbols.
  • the first synchronization signal block is mapped to the first resource
  • the second synchronization signal block is mapped to the second resource
  • the third synchronization signal block is mapped to the third resource
  • the fourth synchronization signal block is mapped to a fourth resource, where a location of the first resource in the first time slot is different from a location of the third resource in the second time slot, and a location of the second resource in the first time slot and the location
  • the fourth resource has a different location in the second time slot.
  • the first time slot and the second time slot are consecutive time slots.
  • the base station when transmitting a plurality of SS blocks in the same SS burst, maps multiple SS blocks to different resource locations in different slots.
  • the UE determines that the plurality of SS blocks belong to the same SS burst according to the resource location of each SS block in the slot, and performs simplified processing on the information in the multiple SS blocks, thereby improving the performance of the communication system.
  • FIG. 20 is a schematic diagram of a resource mapping of a base station according to an embodiment of the present disclosure when transmitting an SS block.
  • SS burst k there are two SS bursts, which are denoted as SS burst k and SS burst k+1.
  • slot i and slot j are two slots in SS burst k
  • slot m and slot n are two slots in SS burst k+1.
  • Slot i and slot j may be two consecutive time slots, or may not be two consecutive time slots. In this example, only slot i and slot j are two consecutive time slots as an example.
  • SS blocks are transmitted in each SS burst, which are respectively recorded as SS block 1, SS block 2, SS block 3, and SS block 4.
  • the system information, synchronization information, and the like in the four SS blocks transmitted in the SS burst are the same.
  • the system information, synchronization information, and the like in the SS block transmitted in different SS bursts are different.
  • the above information in the four SS blocks in the SS burst k is the same, but the above information of the SS block 1 in the SS burst k and the SS block 1 in the SS burst k+1 are different.
  • slot i and slot j are two consecutive time slots.
  • SS block 1 and SS block 2 are transmitted on consecutive 8 symbols on slot i
  • SS block 3 and SS block 4 are transmitted on consecutive 8 symbols on slot j.
  • SS block 1 is transmitted on the 4th to 7th symbols of slot i
  • SS block 2 is transmitted on the 8th to 11th symbols of slot i.
  • SS block3 is sent on the 3rd to 6th symbols of slot j
  • SS block 4 is sent on the 7th to 10th symbols of slot i.
  • PSS, SSS, and PBCH are included in one SS block.
  • the PSS in SS block 1 is transmitted on the fourth symbol of slot i
  • the SSS of SS block 1 is transmitted on the fifth symbol of slot i
  • the PBCH of SS block 1 is in the sixth of slot i.
  • the PSS in SS block 2 is sent on the 8th symbol of slot i
  • the SSS of SS block 1 is sent on the 9th symbol of slot i
  • the PBCH of SS block 1 is sent on the 10th to 11th symbols of slot i. .
  • the PSS in SS block 3 is sent on the third symbol of slot j, the SSS of SS block 3 is sent on the fourth symbol of slot i, and the PBCH of SS block 3 is sent on the 5-6th symbol of slot i. .
  • the PSS in SS block 4 is sent on the 7th symbol of slot j, the SSS of SS block 4 is sent on the 8th symbol of slot i, and the PBCH of SS block 4 is sent on the 9-10th symbol of slot i. .
  • the resource mapping manner of the four SS blocks in SS burst k+1 is basically similar to that of SS burst k, please refer to FIG.
  • the UE when detecting the synchronization signal block, the UE can confirm whether different synchronization signal blocks belong to the same SS burst according to the symbol position between different synchronization signal blocks.
  • the PSS in SS block 1 in SS burst k is 4 symbols apart from the PSS in SS block 2 in SS burst k
  • SS block 1 in SS burst k The PSS is 13 symbols apart from the PSS in SS block 3 in SS burst k
  • the PSS in SS block 1 in SS burst k is 17 symbols apart from the PSS in SS block 4 in SS burst k.
  • the PSS in SS block 2 in SS burst k is 9 symbols apart from the PSS in SS block 3 in SS burst k. In other words, if the two sync signal blocks differ by 4, 9, 13, 17 symbols, then the two sync signal blocks belong to the same SS burst. If the number of symbols between two sync signal blocks is not any one of 4, 9, 13, 17, then the two sync signal blocks belong to different SS bursts.
  • the PSS in SS block 3 in SS burst k is 15 symbols from the PSS in SS block 1 in SS burst k+1, the PSS in SS block 3 in SS burst k and the SS in SS burst k+1
  • the PSS in block 2 is 19 symbols apart
  • the PSS in SS block 4 in SS burst k is 11 symbols apart from the PSS in SS block 1 in SS burst k+1
  • SS block 4 in SS burst k The PSS is 15 symbols apart from the PSS in SS block 2 in SS burst k+1. It can be seen that in FIG. 20, the number of symbols of the difference between the sync signal blocks in the different SS bursts is 11, 15, 19, which is different from any of the above 4, 9, 13, and 17.
  • FIG. 20 is a schematic diagram of a resource mapping manner provided by taking the first sorting manner as an example.
  • the first sorting method means that in an SS block, the PSS occupies the first symbol, the SSS occupies the second symbol, and the PBCH occupies the 3-4th symbol.
  • FIG. 21 is a schematic diagram of a resource mapping manner provided by taking a second sorting manner as an example.
  • the second sorting method means that in an SS block, the PSS occupies the first symbol, the SSS occupies the third symbol, and the PBCH occupies the second and fourth symbols.
  • 21 and FIG. 20 are only different manners in which the symbols occupied by various signals in one SS block are different, the mapping manner of each SS block in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. , no longer repeated here.
  • FIG. 22 is a schematic diagram of a resource mapping manner provided by taking a third sorting manner as an example.
  • the third sorting method means that in one SS block, the PSS occupies the second symbol, the SSS occupies the third symbol, and the PBCH occupies the first and fourth symbols.
  • FIG. 22 and FIG. 20 are only different manners of symbol sorting occupied by various signals in an SS block, mapping manners of respective SS blocks in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. 20 , no longer repeated here.
  • FIG. 23 is a schematic diagram of a resource mapping manner provided by taking a fourth sorting manner as an example.
  • the fourth sorting method means that in one SS block, the PSS occupies the first symbol, the SSS occupies the fourth symbol, and the PBCH occupies the second and third symbols.
  • FIG. 22 and FIG. 20 are only different manners of symbol sorting occupied by various signals in an SS block, mapping manners of respective SS blocks in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. 20 , no longer repeated here.
  • FIG. 24 is a schematic diagram of resource mapping of another base station according to an embodiment of the present disclosure when transmitting an SS block.
  • SS burst k there are two SS bursts, which are denoted as SS burst k and SS burst k+1.
  • slot i and slot j are two slots in SS burst k
  • slot m and slot n are two slots in SS burst k+1.
  • SS blocks are transmitted in each SS burst, which are respectively recorded as SS block 1, SS block 2, SS block 3, and SS block 4.
  • the system information, synchronization information, and the like in the four SS blocks transmitted in the SS burst are the same.
  • the system information and synchronization information of the SS block transmitted in different SS bursts are different.
  • the above information in the four SS blocks in the SS burst k is the same, and the above information of the SS block 1 in the SS burst k and the SS block 1 in the SS burst k+1 are different.
  • slot i and slot j are two consecutive time slots.
  • SS block 1 and SS block 2 are transmitted on consecutive 8 symbols on slot i
  • SS block 3 and SS block 4 are transmitted on consecutive 8 symbols on slot j.
  • SS block 1 is transmitted on the 3rd to 6th symbols of slot i
  • SS block 2 is transmitted on the 7th to 10th symbols of slot i.
  • SS block3 is sent on the 4th to 7th symbols of slot j
  • SS block 4 is sent on the 8th to 11th symbols of slot i.
  • PSS, SSS, and PBCH are included in one SS block.
  • the PSS in SS block 1 is transmitted on the third symbol of slot i
  • the SSS of SS block 1 is transmitted on the fourth symbol of slot i
  • the PBCH of SS block 1 is in the fifth of slot i.
  • the PSS in SS block 2 is sent on the 7th symbol of slot i
  • the SSS of SS block 1 is sent on the 8th symbol of slot i
  • the PBCH of SS block 1 is sent on the 9-10th symbol of slot i. .
  • the PSS in SS block 3 is sent on the 4th symbol of slot j, the SSS of SS block 3 is sent on the 5th symbol of slot i, and the PBCH of SS block 3 is sent on the 6th to 7th symbols of slot i .
  • the PSS in SS block 4 is sent on the eighth symbol of slot j, the SSS of SS block 4 is sent on the ninth symbol of slot i, and the PBCH of SS block 4 is sent on the 10th to 11th symbols of slot i. .
  • the resource mapping manner of the four SS blocks in SS burst k+1 is basically similar to that of SS burst k, please refer to FIG.
  • the UE when detecting the synchronization signal block, the UE can confirm whether different synchronization signal blocks belong to the same SS burst according to the symbol position between different synchronization signal blocks.
  • the PSS in SS burst 1 in SS burst k is 4 symbols apart from the PSS in SS burst 2 in SS burst k, and SS burst 1 in SS burst k
  • the PSS is 15 symbols apart from the PSS in the SS burst 3 in the SS burst k
  • the PSS in the SS burst 1 in the SS burst k is 19 symbols apart from the PSS in the SS burst 4 in the SS burst k.
  • the PSS in SS burst 2 in SS burst k is 11 symbols apart from the PSS in SS burst 3 in SS burst k. In other words, if the two sync signal blocks differ by 4, 11, 15, or 19 symbols, the two sync signal blocks belong to the same SS burst. If the number of symbols between two sync signal blocks is not any one of 4, 11, 15, 19, the two sync signal blocks belong to different SS bursts.
  • the PSS in SS burst 3 in SS burst k is 13 symbols away from the PSS in SS burst 1 in SS burst k+1, the PSS in SS burst 3 in SS burst k and the SS in SS burst k+1
  • the PSS in burst 2 is 17 symbols apart
  • the PSS in SS burst 4 in SS burst k is 9 symbols apart from the PSS in SS burst 1 in SS burst k+1
  • SS burst 4 in SS burst k The PSS is 13 symbols apart from the PSS in SS burst 2 in SS burst k+1. It can be seen that in FIG. 24, the sync signal blocks in different SS bursts are separated by 9, 13, and 17, which are different from any of the above 4, 11, 15, and 19.
  • FIG. 24 is a schematic diagram of a resource mapping manner provided by taking the first sorting manner as an example.
  • the first sorting method means that in an SS block, the PSS occupies the first symbol, the SSS occupies the second symbol, and the PBCH occupies the 3-4th symbol.
  • FIG. 25 is a schematic diagram of a resource mapping manner provided by taking a second sorting manner as an example.
  • the second sorting method means that in an SS block, the PSS occupies the first symbol, the SSS occupies the third symbol, and the PBCH occupies the second and fourth symbols.
  • 25 and FIG. 24 are only different ways of sorting symbols occupied by various signals in an SS block, mapping manners of respective SS blocks in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. , no longer repeated here.
  • FIG. 26 is a schematic diagram of a resource mapping manner provided by taking a third sorting manner as an example.
  • the third sorting method means that in one SS block, the PSS occupies the second symbol, the SSS occupies the third symbol, and the PBCH occupies the first and fourth symbols.
  • 26 and FIG. 24 are only different ways of sorting symbols occupied by various signals in an SS block, mapping manners of respective SS blocks in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. , no longer repeated here.
  • FIG. 27 is a schematic diagram of a resource mapping manner provided by taking a fourth sorting manner as an example.
  • the fourth sorting method means that in one SS block, the PSS occupies the first symbol, the SSS occupies the fourth symbol, and the PBCH occupies the second and third symbols.
  • 27 and FIG. 24 are only different manners in which the symbols occupied by various signals in an SS block are different, the mapping manner of each SS block in the same SS burst, and the number of symbols between the respective SS blocks are the same as those in FIG. , no longer repeated here.
  • FIG. 28 is a flowchart of a method for transmitting a synchronization signal according to an embodiment of the present application.
  • the flowchart describes a process in which a terminal device receiving a synchronization signal by using a UE as an example from the perspective of a UE.
  • the working principle and function of the network device are introduced by taking a base station as an example.
  • Step 281 The UE detects a synchronization signal pulse, wherein the synchronization signal pulse includes a first synchronization signal block, a second synchronization signal block, a third synchronization signal block, and a fourth synchronization signal block.
  • the first synchronization signal block and the second synchronization signal block are continuously transmitted on a first time slot, and the third synchronization signal block and the fourth synchronization signal block are continuously transmitted on a second time slot.
  • continuous transmission refers to transmission through consecutive OFDM symbols.
  • the first synchronization signal block is mapped to the first resource
  • the second synchronization signal block is mapped to the second resource
  • the third synchronization signal block is mapped to the third resource
  • the fourth synchronization signal block is mapped to the first resource.
  • the first time slot and the second time slot are consecutive time slots.
  • Step 282 The UE acquires a signal in the synchronization signal pulse.
  • the UE confirms whether the two synchronization signal blocks belong to the same SS burst according to the number of symbols between different synchronization signal blocks when receiving the synchronization signal block, thereby obtaining a plurality of synchronization signal blocks belonging to the same SS burst.
  • Sequencing a plurality of synchronization signal blocks belonging to the same SS burst for example, demodulating each synchronization signal block separately, combining the demodulated soft bit data, and decoding the combined result, thereby obtaining each synchronization signal block Contains information such as system information, sequencing of sync blocks, and more.
  • the ordering here can be the sequence number in the SS burst.
  • the UE determines whether two synchronization signal blocks belong to the SS burst. For example, if the resource mapping mode is as shown in FIG. 20, if the two synchronization signal blocks have a phase difference of 4, 9, 13, or 17 symbols, the two synchronization signal blocks belong to the same SS burst; if two synchronization signal blocks The number of symbols of the phase difference is not any one of 4, 9, 13, or 17, and the two sync signal blocks belong to different SS bursts. For example, if the resource mapping mode is as shown in FIG.
  • the two sync signal blocks belong to the same SS burst; if two sync signal blocks The number of symbols between the phase differences is not any one of 4, 11, 15, or 19, and the two sync signal blocks belong to different SS bursts.
  • the UE when receiving multiple SS blocks, the UE confirms two according to the resource position between any two synchronization signal blocks, for example, the number of symbols of any two synchronization signal blocks. Whether the sync signal blocks belong to the same SS burst. Therefore, the UE performs subsequent simplified signal processing according to the confirmation result, thereby improving the performance of the communication system.
  • the resource mapping manner shown in FIG. 20 to FIG. 27 is applicable to communication systems of various frequency points, for example, a communication system with a subcarrier spacing of 15 kHz, a communication system with a subcarrier spacing of 30 kHz, and subcarriers.
  • the resource mapping scheme shown in FIG. 20 to FIG. 27 is preferably applied to a communication system in which the subcarrier spacing is 120 kHz and the time slot contains 14 symbols.
  • the schemes shown in Figures 13-14 further meet the energy saving requirements. Therefore, the resource mapping scheme shown in FIGS. 20-27 obtained by applying the resource mapping scheme in the time slot shown in FIG. 13-14 to the synchronization signal pulse including multiple time slots is to simultaneously satisfy the anti-interference. And resource mapping schemes for energy saving requirements.
  • the network device after the network device performs resource mapping on the synchronization signal block group by using the resource mapping manner shown in FIG. 20-27, the network device sends the synchronization signal pulse set before the synchronization signal pulse set.
  • the above-described four consecutive time slots for transmitting the first sync signal block packet and the second sync signal block packet are transmitted in 1 microsecond as indicated by hatching.
  • FIG. 30 is an example in which the transmission period of the ss burst set is 20 ms. It can be understood that the transmission period of the ss burst set can also be configured to be 5 ms, 10 ms, 40 ms, 80 ms, or 160 ms.
  • the embodiment of the present application further provides a network device.
  • the network device can be a base station.
  • the structure and function of the network device will be described below by taking a base station as an example in conjunction with FIG.
  • FIG. 31 is a schematic structural diagram of a network device.
  • the network device functions as the network device in FIG. 4, and implements the functions of the network devices in the foregoing embodiments and the fourth embodiment.
  • the network device includes a transceiver 311 and a processor 312.
  • the transceiver 311 may be referred to as a remote radio unit (RRU), a transceiver unit, a transceiver, or a transceiver circuit or the like.
  • the transceiver 311 can include at least one antenna 3111 and a radio frequency unit 3112.
  • the transceiver 311 can be used for transceiving radio frequency signals and converting radio frequency signals with baseband signals.
  • the network device includes one or more baseband units (abbreviation: BBUs) 313.
  • the baseband unit includes a processor 312.
  • the baseband unit 313 is mainly used for performing baseband processing such as channel coding, multiplexing, modulation, spread spectrum, etc., and controlling the base station.
  • the transceiver 311 and the baseband unit 313 may be physically disposed together or physically separated, that is, distributed base stations.
  • the baseband unit 313 may be configured by one or more single boards.
  • the multiple boards may jointly support a single access system radio access network, or may respectively support different access standards of the radio access network.
  • Baseband unit 313 includes a processor 312.
  • the processor 312 can be used to control the network device to perform the corresponding operations in the foregoing method embodiments.
  • baseband unit 313 may also include a memory 314 for storing the necessary instructions and data.
  • the processor 312 is configured to generate a first synchronization signal block group and a second synchronization signal block group, where the first synchronization signal block group includes m synchronization signal blocks, and the second synchronization signal block group includes n Sync block, where m and n are positive integers greater than or equal to 2.
  • mapping n synchronization signal blocks in the second synchronization signal block group into another y symbols, where y 7n, between any two synchronization signal blocks in the second synchronization signal block group after mapping
  • the number of symbols of the phase difference belongs to the first set, and between one of the mapped synchronization signal blocks in the second synchronization signal block group and one of the synchronization signal blocks in the first synchronization signal block group after the mapping
  • the number of symbols of the difference belongs to the second set, and the values in the second set do not coincide with the values in the first set.
  • the transceiver 311 is configured to send the synchronization signal block in the first synchronization signal block group and the synchronization signal block in the second synchronization signal block group by using the time-frequency resource mapped by the processor.
  • n and n have a value of 4
  • x and y have a value of 28.
  • the processor 312 adopts a uniform mapping manner as shown in FIG. 6 or FIG.
  • the sync signal block in a sync signal block packet and the sync signal block in the second sync signal block packet perform resource mapping.
  • the processor 312 uses the resource mapping manner shown in FIG. 20 to 27 of the second embodiment of the above method to the first synchronization signal.
  • the synchronization signal block in the block packet and the synchronization signal block in the second synchronization signal block packet perform resource mapping. For details, please refer to the description in the previous method embodiments, which will not be repeated here.
  • the processor 312 uses the resource mapping manner shown in FIG. 9 to FIG. 14 to perform resources on the synchronization signal block in the first synchronization signal block group and the synchronization signal block in the second synchronization signal block group. Mapping. For details, please refer to the description in the previous method embodiments, which will not be repeated here.
  • the embodiment of the present application further provides a network device.
  • the network device is a base station.
  • the structure and function of the network device will be described below by taking a base station as an example in conjunction with FIG. 32.
  • 32 is a schematic structural diagram of a network device, which is a network device in FIG. 4, and has the functions of the network device in the method embodiment.
  • the network device includes a transceiver unit 321 and a processing unit 322.
  • the transceiver unit 321 and the processing unit 322 may be implemented in software or in hardware.
  • the transceiver unit 321 can be the transceiver 311 in FIG. 31, and the processing unit 322 can be the processor 312 in FIG.
  • An embodiment of the present application provides a network device that takes a base station as an example. After the first synchronization signal block group and the second synchronization signal block group are generated, the network device performs resource mapping on two synchronization signal blocks by using a predetermined resource mapping manner. . After mapping, the number of symbols of the difference between two synchronization signal blocks in the same synchronization signal block group in the time domain belongs to the first set, and the number of symbols of the difference between the two synchronization signal blocks in different synchronization signal block groups does not belong to the first A collection.
  • the terminal device when the terminal device detects the plurality of synchronization signal blocks when receiving the synchronization signal, it can be confirmed whether the two synchronization signal blocks belong to the same synchronization signal block group according to the number of symbols of the difference between the two synchronization signal blocks.
  • the terminal device can then obtain a plurality of synchronization signal blocks belonging to the same synchronization signal block group, and simplify the processing of the plurality of synchronization signal blocks belonging to the same synchronization signal block group, thereby simplifying the signal processing flow and shortening the processing cost of processing the synchronization signal block. Time and processing resources.
  • the terminal device can thereby obtain the system information carried in the synchronization signal block more quickly, and shorten the network access time.
  • the embodiment of the present application further provides a terminal device.
  • the terminal device may be the UE in the foregoing method embodiments, and may have any function of the UE in each method embodiment.
  • Figure 33 is a block diagram showing the structure of the terminal device.
  • the terminal device functions as the terminal device in Figure 5 to implement the functions of the terminal devices shown in the above embodiments and the fourth embodiment.
  • the terminal device includes a processor 331 and a transceiver 332.
  • the transceiver 332 can include a control circuit and an antenna, wherein the control circuit can be used for converting baseband signals and radio frequency signals and processing the radio frequency signals, and the antenna can be used to transmit and receive radio frequency signals.
  • the device may also include other major components of the terminal device, such as memory, input and output devices, and the like.
  • the processor 331 can be configured to process the communication protocol and the communication data, and control the entire terminal device, execute the software program, and process the data of the software program, for example, to support the terminal device to perform the corresponding operations in the foregoing method embodiments.
  • the memory 333 is mainly used to store software programs and data. After the terminal device is powered on, the processor 331 can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
  • the transceiver 332 is configured to detect the first sync signal block and the second sync signal block in a transmission period of a synchronization signal pulse set.
  • the processor 331 is configured to determine a number of symbols that are different between a time domain resource occupied by the first synchronization signal block and a time domain resource occupied by the second synchronization signal block. If the number of symbols of the phase difference belongs to a predetermined set, it is determined that the first sync signal block and the second sync signal block belong to the same sync signal block packet.
  • the predetermined set is the first set in the method embodiment described in FIG. 6 to FIG. 7, and is included in the predetermined set.
  • the value is even.
  • the processor 331 may adopt a simplified judgment manner, that is, determine whether the number of symbols of the phase difference is an even number. If the number of difference symbols is an even number, the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet. If the number of symbols of the phase difference is not an even number, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • the predetermined set is the first in the method embodiment described in FIG. 9 to FIG. 14 and FIG. A set of values included in the predetermined set is less than a predetermined threshold.
  • the processor 331 may adopt a simplified judgment manner, that is, determine whether the number of symbols of the phase difference exceeds a predetermined threshold. If the number of symbols of the phase difference does not exceed the predetermined threshold, the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet. If the number of symbols of the phase difference exceeds a predetermined threshold, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • FIG. 34 is a block diagram showing the structure of a terminal device, the base station processing unit 341 and the transceiver unit 342.
  • the processing unit 341 and the transceiver unit 342 may be implemented in software or in hardware.
  • the processing unit 341 can be the processor 331 of FIG. 33, which can be the transceiver 332 of FIG.
  • An embodiment of the present application provides a terminal device, when a terminal device detects multiple synchronization signal blocks in a transmission period of a synchronization signal pulse set, according to whether the number of symbols of the difference between the two synchronization signal blocks belongs to a predetermined set. It is confirmed whether the two sync signal blocks belong to the same sync signal block group, thereby further obtaining a plurality of sync signal blocks belonging to the same sync signal block group.
  • the terminal device can perform a simplified signal processing procedure on a plurality of synchronization signal blocks belonging to the same synchronization signal block group. Since the signal processing flow is simplified, the time and processing resources for processing the synchronization signal block are shortened, so that the system information carried in the synchronization signal block can be obtained more quickly, and the network access time is shortened.
  • the embodiment of the invention further provides a communication system, which comprises the network device and the terminal device in the above embodiment.
  • a communication system which comprises the network device and the terminal device in the above embodiment.
  • Embodiment 1 and Embodiment 2 provide a method for propagating a synchronization signal, and specifically, when transmitting a synchronization signal, the first synchronization signal block group and the second synchronization signal block group respectively include four synchronization signal blocks.
  • multiple resource mapping methods of the synchronization signal block That is, when the value of m and n is 4, a plurality of resource mapping modes of the synchronization signal block are used.
  • the method of propagating the synchronization signal shown in the first embodiment of FIG. 4 and FIG. 5 is applicable to the case where the values of m and n are other positive integers.
  • the values of m and n are other values, for example, when the value of m and n is 8, the resource mapping manner of the synchronization signal block will be described.
  • step 42 of FIG. 4 when the value of m and n is 8, the value of x and y is 56.
  • the network device maps the first synchronization signal block group to 4 when transmitting the first synchronization signal block packet and the second synchronization signal block packet.
  • the second sync signal block is mapped onto the other four consecutive time slots on consecutive time slots, and the two consecutive two time slots are separated by at least one time slot.
  • the specific resource mapping manner is as shown in FIG. 35, FIG. 36 and FIG.
  • the arrangement manner of the OFDM symbols corresponding to the PSS, the SSS, and the PBCH in the SS block is the second arrangement in FIG. 2, that is, the PSS occupies the first symbol in the SS block, and the SSS occupies the SS block.
  • the third symbol in the PBCH occupies the 2nd and 4th symbols in the SS block.
  • the arrangement of the OFDM symbols corresponding to the PSS, the SSS, and the PBCH in the SS block may be other arrangements in FIG. 2, and will not be exemplified herein.
  • Slot j to slot j+8 represent nine consecutive time slots.
  • the network device maps ss burst k in 4 consecutive time slots of slot j to slot j+3, and ss burst k+1 is mapped in 4 consecutive time slots of slot j+5 to slot j+8.
  • the network device maps the ss block 1 in the ss burst k on the 3-6th symbol of the 1st slot slot j of the consecutive 9 slots, and maps the ss block 2 in the ss burst k to the consecutive 9 slots.
  • the ss block 3 in the ss burst k is mapped on the 3rd to 6th symbols of the second slot slot j+1 of the consecutive 9 slots, and the ss block 4 in the ss burst k is mapped to 9 consecutive
  • the second time slot in the time slot is on the 7-10th symbol of slot j+1.
  • the ss block 5 in the ss burst k is mapped on the 3rd to 6th symbols of the 3rd slot slot j+2 of the consecutive 9 slots, and the ss block 6 in the ss burst k is mapped in 9 consecutive
  • the third time slot in the time slot is on the 7-10th symbol of slot j+2.
  • the ss block 7 in the ss burst k is mapped on the 3rd to 6th symbols of the 4th slot slot j+3 of the consecutive 9 slots, and the ss block 8 in the ss burst k is mapped in 9 consecutive times.
  • the 4th time slot in the slot is on the 7-10th symbol of slot j+3.
  • the network device maps ss block 1 of ss burst k+1 to the 4th to 7th symbols of the sixth slot slot j+5 of the consecutive 9 slots, and ss block 2 of ss burst k+1 It is mapped on the 8th-11th symbols of the sixth slot slot j+5 of the consecutive 9 slots.
  • the number of symbols that differ between the sync signal blocks belonging to the same sync signal block group is an even number.
  • ss block 1 differs from ss block 2 by 4 symbols
  • ss block 1 differs from ss block 3 by 14 symbols
  • ss block 1 differs from ss block 4 by 18 symbols
  • Ss block 2 differs from ss block 4 by 10 symbols
  • Ss block 1 differs from ss block 5 by 28 symbols
  • ss block 1 differs from ss block 6 by 32 symbols
  • Ss block 1 differs from ss block 7 by 42 symbols
  • ss block 1 differs from ss block 8 by 46 symbols.
  • the number of symbols of the difference between each ss block in ss burst k+1 is similar to ss burst k, and is not repeated here.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups is an odd number.
  • ss block 5 in ss burst k differs from ss block 1 in ss burst k+1 by 43 symbols
  • ss block 1 in ss burst k differs from ss block 2 in ss burst k+1 by 47 symbols
  • ss Ss block 7 in burst k is 29 symbols out of ss block 1 in ss burst k+1
  • ss block 8 in ss burst k is 25 symbols out of ss block 1 in ss burst k+1
  • ss burst k The ss block 7 in the ss block k s is different from the ss block 2 in the ss burst k+1 by 33 symbols
  • the ss block 7 in the ss burst k is 43 symbols out of the ss block 3 in the ss burs
  • the number of symbols difference between the sync signal blocks in different sync block groups may also be an odd number with a larger value, such as ss block 7 in ss burst k and ss block 5 in ss burst k+1. There are 57 symbols difference, which are not listed here.
  • the number of symbols of the difference between the synchronization signal blocks in the same synchronization signal block group belongs to the first set, and the values of the first set include: ⁇ 4, 10, 14, 18 , 28, 32, 42, 46 ⁇ .
  • the number of symbols of the difference between the sync signal blocks in the different sync block groups belongs to the second set, and the values of the second set include: ⁇ 25, 29, 33, 43, 47, 57 ⁇ .
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource of the first synchronization signal block is detected and detects the After the number of symbols of the difference between the time domain resources of the two sync signal blocks, if the number of symbols of the difference belongs to the first set, it is determined that the first sync signal block and the second sync signal block belong to the same sync signal block group.
  • the values in the first set are all even.
  • the terminal device may adopt a simplified judgment manner, that is, determine whether the number of symbols of the phase difference is an even number.
  • the terminal device determines that the first sync signal block and the second sync signal block belong to the same sync signal block packet. If the number of symbols of the phase difference is not an even number, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • FIG. 36 is a schematic diagram of another resource mapping manner provided by an embodiment of the present application. The difference from FIG. 35 is that both the first set and the second set contain even numbers, but the values in the first set and the second set do not overlap each other.
  • Slot j to slot j+8 represent nine consecutive time slots.
  • the network device maps ss burst k in 4 consecutive time slots of slot j to slot j+3, and ss burst k+1 is mapped in 4 consecutive time slots of slot j+5 to slot j+8.
  • the network device maps the ss block 1 of the ss burst k on the 7-10th symbol of the first slot slot j of the consecutive 9 slots, and maps the ss block 2 of the ss burst k to the consecutive 9 slots.
  • the ss block 3 in the ss burst k is mapped on the 1-4th symbol of the second slot slot j+1 of the consecutive 9 slots, and the ss block 4 in the ss burst k is mapped in consecutive 9
  • the second time slot in the slot is on the 5-8th symbol of slot j+1.
  • the ss block 5 in the ss burst k is mapped on the 7-10th symbol of the 3rd slot slot j+2 of the consecutive 9 slots, and the ss block 6 in the ss burst k is mapped in 9 consecutive
  • the third time slot in the time slot is on the 11th-14th symbol of slot j+2.
  • the ss block 7 in the ss burst k is mapped on the 1-4th symbol of the 4th slot slot j+3 of the consecutive 9 slots, and the ss block 8 in the ss burst k is mapped in 9 consecutive times.
  • the 4th time slot in the slot is on the 5th-8th symbol of slot j+3.
  • the network device maps ss block 1 of ss burst k+1 to the 7-10th symbol of the sixth slot slot j+5 of the consecutive 9 slots, and ss block 2 of ss burst k+1 It is mapped on the 11th-14th symbols of the sixth slot slot j+5 of the consecutive 9 slots.
  • the 7th time slot of the 7th time slot of the consecutive 9 time slots is on the 5th-8th symbol of the slot j+6.
  • the number of symbols that differ between the synchronization signal blocks belonging to the same synchronization signal block group belongs to the first set.
  • ss block 1 is different from ss block 2 by 4 symbols
  • ss block 1 is different from ss block 3 by 8 symbols
  • ss block 1 is different from ss block 4 by 12 symbols
  • ss Block 4 differs from ss block 5 by 16 symbols
  • ss block 3 differs from ss block 7 by 28 symbols
  • ss block 3 differs from ss block 8 by 32 symbols
  • ss block1 differs from ss block 7 by 36 symbols
  • ss block 1 and The distance between ss block 8 is the farthest, with a difference of 40 symbols.
  • the number of symbols of the difference between each ss block in ss burst k+1 is similar to ss burst k, and is not repeated here.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups belongs to the second set.
  • ss block 5 in ss burst k is 42 symbols out of ss block 1 in ss burst k+1
  • ss block 6 in ss burst k is 38 symbols different from ss block 1 in ss burst k+1
  • ss Ss block 7 in burst k differs from ss block 1 in ss burst k+1 by 34 symbols
  • ss block 8 in ss burst k differs from ss block 1 in ss burst k+1 by 30 symbols.
  • the number of symbols of the difference between the synchronization signal blocks in different synchronization signal block groups may also be other values larger than the above values, such as ss block 5 in ss burst k and ss block in ss burst k+1. 2 differs by 46 symbols and is not listed here.
  • the number of symbols difference between the synchronization signal blocks in the same synchronization signal block group belongs to the first set, and the values of the first set include: ⁇ 4, 8, 12, 16 , 36, 40 ⁇ .
  • the number of symbols of the difference between the sync signal blocks in the different sync block groups belongs to the second set, and the values of the second set include: ⁇ 30, 34, 38, 42 ⁇ .
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource of the first synchronization signal block is detected and detects the After the number of symbols of the difference between the time domain resources of the two sync signal blocks, if the number of symbols of the difference belongs to the first set, it is determined that the first sync signal block and the second sync signal block belong to the same sync signal block group.
  • the same synchronization signal block after mapping The number of symbols of the difference between any two synchronization signal blocks in the packet belongs to the first set, and the number of symbols of the difference between the synchronization signal blocks in the different synchronization signal block groups belongs to the second set that does not overlap with the first set, and The value in the first set is less than the set threshold, and the value in the second set is greater than the set threshold.
  • the mapping manner of the first synchronization signal block in four consecutive time slots may not be limited, and the mapping manner of the second synchronization signal block group in the other four consecutive time slots may be defined.
  • the first sync signal block in the first sync signal block packet can start at any symbol position in the first one of the four consecutive time slots, FIG. 37 is only one of them. Example.
  • the arrangement manner of the OFDM symbols corresponding to the PSS, the SSS, and the PBCH in the SS block is the second arrangement in FIG. 2, that is, the PSS occupies the first symbol in the SS block, and the SSS occupies the SS block.
  • the third symbol in the PBCH occupies the 2nd and 4th symbols in the SS block.
  • the arrangement of the OFDM symbols corresponding to the PSS, the SSS, and the PBCH in the SS block may be other arrangements in FIG. 2, and will not be exemplified herein.
  • Slot j to slot j+9 represent 10 consecutive time slots.
  • the network device maps ss burst k in 4 consecutive time slots of slot j to slot j+3, and maps ss burst k+1 in 4 consecutive time slots of slot j+6 to slot j+9.
  • the network device maps ss block 1 of ss burst k on the 7-10th symbol of the first slot slot j of the consecutive 10 slots, and maps ss block 2 of ss burst k to 10 consecutive rows. The 11th to 14th symbols of the first slot slot j in the slot.
  • the ss block 3 in the ss burst k is mapped on the 1-4th symbol of the second slot slot j+1 of the consecutive 10 slots, and the ss block 4 in the ss burst k is mapped in consecutive 10
  • the second time slot in the slot is on the 5-8th symbol of slot j+1.
  • the ss block 5 in the ss burst k is mapped on the 7-10th symbol of the 3rd slot slot j+2 of the consecutive 10 slots, and the ss block 6 in the ss burst k is mapped in 10 consecutive
  • the third time slot in the time slot is on the 11th-14th symbol of slot j+2.
  • the ss block 7 in the ss burst k is mapped on the 1-4th symbol of the 4th slot slot j+3 of the consecutive 10 slots, and the ss block 8 in the ss burst k is mapped in 10 consecutive times.
  • the 4th time slot in the slot is on the 5th-8th symbol of slot j+3.
  • the network device maps ss block 1 of ss burst k+1 to the 7-10th symbol of the seventh slot slot j+6 of the consecutive 10 time slots, and ss block 2 of ss burst k+1 Mapped on the 11th-14th symbols of the 7th slot slot j+6 of the 10 consecutive time slots.
  • mapping ss block 3 in ss burst k+1 on the 1-4th symbol of the eighth slot slot j+7 of the consecutive 10 slots mapping ss block 4 in ss burst k+1 On the 5th to 8th symbols of the eighth time slot slot j+7 of the consecutive 10 time slots.
  • the predetermined threshold can be set to a positive integer greater than 40 and less than 44, such as 41.
  • the number of symbols that differ between the sync signal blocks belonging to the same sync signal block group is less than a predetermined threshold. For example, for each sync signal block in the ss burst k in FIG.
  • ss block 1 is different from ss block 2 by 4 symbols
  • ss block 1 is different from ss block 3 by 8 symbols
  • ss block 1 and ss block 4 The difference is 12 symbols
  • ss block 4 and ss block 5 are 16 symbols apart
  • ss block 1 and ss block 7 are 36 symbols apart
  • the distance between ss block 1 and ss block 8 is the farthest, which is 40 symbols. That is, the values of the first set include: ⁇ 4, 8, 12, 16, 36, 40 ⁇ , all smaller than the predetermined threshold 41.
  • the number of symbols that differ between the sync signal blocks belonging to different sync block groups exceeds a predetermined threshold.
  • ss block 7 in ss burst k in FIG. 37 differs from ss block 1 in ss burst k+1 by 48 symbols, and ss block 8 and ss burst k+ in ss burst k in FIG.
  • the distance between ss block 1 in 1 is the closest, and the difference between them is 44 symbols. That is, the value of the second set includes: ⁇ 44, 48 ⁇ , both exceeding a predetermined threshold 41.
  • the terminal device determines, in step 52 of FIG. 5, that the time domain resource of the first synchronization signal block is detected and detects the After the number of symbols of the difference between the time domain resources of the two sync signal blocks, if the number of symbols of the difference belongs to the first set, it is determined that the first sync signal block and the second sync signal block belong to the same sync signal block group.
  • the values in the first set are all smaller than a preset threshold. Therefore, after determining the number of symbols of the phase difference, the terminal device can adopt a simplified judgment manner, that is, whether the number of symbols of the phase difference exceeds a predetermined threshold.
  • the terminal device determines that the first synchronization signal block and the second synchronization signal block belong to the same synchronization signal block. Grouping. If the number of symbols of the phase difference exceeds a predetermined threshold, it is determined that the first sync signal block and the second sync signal block belong to different sync signal block packets.
  • the transmission method of the synchronization signal shown in FIG. 35, FIG. 36 and FIG. 37 is applicable to communication systems of various frequency points, for example, a communication system with a subcarrier spacing of 15 kHz, a communication system with a subcarrier spacing of 30 kHz, and a subcarrier spacing. It is a communication system with a frequency of 120 kHz and a communication system with a subcarrier spacing of 240 kHz.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de transmission d'un signal de synchronisation permettant de résoudre le problème lié à un long temps d'accès à une cellule. Le procédé consiste à : générer un premier groupe de blocs de signal de synchronisation et un second groupe de blocs de signal de synchronisation, et mapper m blocs de signal de synchronisation du premier groupe de blocs de signal de synchronisation avec x symboles, une différence de nombre de symboles entre deux blocs de signal de synchronisation du premier groupe de blocs de signal de synchronisation après mappage appartenant à un premier ensemble; mapper n blocs de signal de synchronisation du second groupe de blocs de signal de synchronisation avec des symboles y supplémentaires, une différence de nombre de symboles entre deux blocs de signal de synchronisation du second groupe de blocs de signal de synchronisation après mappage appartenant au premier ensemble, et une différence de nombre de symboles entre un bloc de signal de synchronisation du second groupe de blocs de signal de synchronisation après mappage et un bloc de signal de synchronisation du premier groupe de blocs de signal de synchronisation après mappage appartenant à un second ensemble, et des valeurs dans le second ensemble ne se chevauchant pas avec des valeurs dans le premier ensemble; et transmettre le premier groupe de blocs de signal de synchronisation et le second groupe de blocs de signal de synchronisation.
PCT/CN2018/087070 2017-05-16 2018-05-16 Procédé et appareil de transmission d'un signal de synchronisation Ceased WO2018210263A1 (fr)

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CN201710344557 2017-05-16
CN201710459666.7 2017-06-16
CN201710459666 2017-06-16
CN201710510737.1 2017-06-28
CN201710510737.1A CN108880606B (zh) 2017-05-16 2017-06-28 传输同步信号的方法和装置

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016203290A1 (fr) * 2015-06-15 2016-12-22 Telefonaktiebolaget Lm Ericsson (Publ) Format de bloc de synchronisation variable
CN106658697A (zh) * 2015-11-04 2017-05-10 中兴通讯股份有限公司 同步信号发送、检测方法、基站及终端

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016203290A1 (fr) * 2015-06-15 2016-12-22 Telefonaktiebolaget Lm Ericsson (Publ) Format de bloc de synchronisation variable
CN106658697A (zh) * 2015-11-04 2017-05-10 中兴通讯股份有限公司 同步信号发送、检测方法、基站及终端

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Discussion on SS Block and SS Burst", 3GPPTSG RAN WG1 MEETING #87 RL-1611786, 18 November 2016 (2016-11-18), XP051175755 *
SAMSUNG: "SS BW and Multiplexing", 3GPP TSG RAN WG1 NR AH R1-1700884, 20 January 2017 (2017-01-20), XP051208400 *

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