WO2020147728A1 - 一种通信方法及设备 - Google Patents

一种通信方法及设备 Download PDF

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Publication number
WO2020147728A1
WO2020147728A1 PCT/CN2020/072081 CN2020072081W WO2020147728A1 WO 2020147728 A1 WO2020147728 A1 WO 2020147728A1 CN 2020072081 W CN2020072081 W CN 2020072081W WO 2020147728 A1 WO2020147728 A1 WO 2020147728A1
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Prior art keywords
ssb
time
time domain
equal
occupies
Prior art date
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PCT/CN2020/072081
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English (en)
French (fr)
Inventor
李超君
郑娟
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20740997.0A priority Critical patent/EP3905799A4/en
Publication of WO2020147728A1 publication Critical patent/WO2020147728A1/zh
Priority to US17/376,641 priority patent/US20210345269A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2669—Details of algorithms characterised by the domain of operation
    • H04L27/2671—Time domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase

Definitions

  • This application relates to the field of communication technology, and in particular to a communication method and device.
  • terminal equipment can receive synchronization signals and PBCH block (synchronization signal and PBCH block, SSB) to achieve communication Synchronization of base stations, and obtaining system messages, etc.
  • PBCH block synchronization signal and PBCH block, SSB
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • 1 SSB occupies 4 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols (symbol), which is symbol 0 ⁇ symbol 3, in the frequency domain, 1
  • the SSB occupies 20 resource blocks (resource blocks, RB), that is, 240 sub-carriers, and within these 20 RBs, the sub-carrier numbers are 0-239.
  • PSS is located on 127 subcarriers in the middle of symbol
  • SSS is located on 127 subcarriers in the middle of symbol 2.
  • guard subcarriers are set to 0, that is, guard subcarriers are not used to carry signals, and 8 subcarriers and 9 subcarriers are reserved for guard band subcarriers on both sides of SSS, such as
  • the blank areas on both sides of the SSS in Figure 1 are protection subcarriers.
  • PBCH occupies all the subcarriers of symbol 1 and symbol 3, and a part of the remaining subcarriers except the subcarrier occupied by SSS among all the subcarriers of symbol 2 (the remaining subcarriers except for the guard subcarrier Other subcarriers).
  • a current SSB occupies 20 RBs in the frequency domain.
  • the current SSB cannot be detected.
  • the performance of the existing SSB needs to be enhanced.
  • the embodiments of the present application provide a communication method and device, which are used to provide an SSB that can adapt to both broadband terminal equipment and the deep coverage and ultra-long-distance coverage requirements of narrowband terminal equipment.
  • a first communication method includes: a terminal device receives at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB is occupied (N +M+X) time units, the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X Time units; wherein each of the time units includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X and M are not At the same time, it is 0, and Y is an integer greater than 1.
  • the terminal device performs synchronization and/or obtains system messages according to the received at least one SSB.
  • the method may be executed by a first communication device.
  • the first communication device may be a terminal device or a communication device capable of supporting the functions required by the method by the terminal device, and of course, may be other communication devices, such as a chip system.
  • the first communication device is a terminal device.
  • one SSB may include PSS occupying N time units, SSS occupying M time units, and PBCH occupying X time units, which is equivalent to that these signals can occupy multiple time domains. Symbols are sent, and the embodiments of this application do not limit the frequency domain range of the SSB.
  • the SSB can still occupy 20 RBs in the frequency domain, or can occupy less than 20 RBs, and when it occupies less than 20 RBs, due to PSS, At least one of the SSS or PBCH occupies a large number of symbols, which can achieve deep coverage or ultra-long-distance coverage, so that the SSB provided in the embodiments of the present application can meet the requirements of broadband terminal equipment as well as narrowband terminal equipment.
  • the network device can send the SSB in the prior art or the SSB provided in the embodiment of the present application to realize the integration of bandwidth and narrowness.
  • the (N+M+X) time units are not continuous in the time domain.
  • the discontinuity here can mean that any two of the (N+M+X) time units are not continuous in the time domain, or it can mean that any two of the (N+M+X) time units At least two adjacent time units of the index are not continuous in the time domain.
  • (N+M+X) time units are discontinuous in the time domain, so that (N+M+X) time units are gaps in the time domain (that is, discontinuous time domain positions)
  • It can also carry other signals, which is also helpful for compatibility with existing systems. For example, for a low-latency service such as URLLC, it needs to be transmitted at any time. If an SSB occupies multiple consecutive symbols in the time domain, it will affect the delay of URLLC, so this (N+M+X) time unit Discontinuity in the time domain can reduce the impact on the timely transmission of URLLC services.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any of them.
  • the (N+M+X) time units are numbered starting from 0. Further, the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • the (N+M+X) time units are numbered starting from any number.
  • the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • time unit 0 can still indicate the earliest time unit in the time domain among the (N+M+X) time units
  • time unit 1 can indicate the time in the (N+M+X) time units.
  • the previous time unit of the domain last time can be indicated in turn for subsequent ones.
  • the (N+M+X) time units are partially discontinuous in the time domain, so that the gap (that is, the discontinuous time domain position) of the (N+M+X) time units in the time domain ) Can also carry other signals, which is also helpful for compatibility with existing systems and existing URLLC services.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • one SSB is within a period of time, and this period of time can be considered as a time window.
  • the length of a time window is, for example, 5 ms, or other values may also be used.
  • the time domain structure of the SSBs in different time windows is different.
  • the SSBs in some initial time windows may include SSS, or more SSSs, and in some subsequent time windows, consider The terminal device may have achieved synchronization, and it is more necessary for the terminal device to receive the PBCH. Therefore, the number of SSSs can be reduced in the subsequent time window, and the number of PBCHs can be increased accordingly, thereby improving the terminal device's receiving performance for the PBCH.
  • X is greater than or equal to N.
  • the terminal device can receive the PSS multiple times to increase energy and improve the probability of correct reception. The same is true for the SSS.
  • the content of the PBCH sent by the network device at different times may be different.
  • the PBCH sent by the network device within a period of time carries the first content, and the content carried by the PBCH sent in the next period of time may become the first content.
  • Second content so terminal equipment cannot improve the reception accuracy by receiving multiple PBCH for a long time, so for network equipment, it can send PBCH multiple times in a short time as much as possible to improve the coverage of PBCH and improve the reception accuracy of terminal equipment rate. From this perspective, X can be greater than N or equal to N.
  • N is greater than or equal to M.
  • the terminal device When the terminal device performs initial access, the terminal device is completely blind when detecting the PSS, the terminal device does not know the location of the PSS, and the detection is completely realized through the blind detection.
  • network equipment can configure more dense PSS in the time domain to speed up the blind detection of PSS by terminal equipment.
  • the terminal device has already received the PSS when detecting the SSS.
  • the terminal device Compared with the PSS, the terminal device is relatively easy to detect the SSS. Therefore, the number of times the network device sends the SSS can be less than the number of times the PSS is sent, so N can be greater than M. Of course, if you consider to further improve the coverage of the synchronization signal, N can also be equal to M.
  • the method further includes: the terminal device receives first signaling, where the first signaling is used to indicate the SSB time domain structure;
  • the terminal device receiving at least one SSB includes: the terminal device receives the at least one SSB according to the time domain structure of the SSB.
  • the SSB time domain structure is configured by the network device, and the network device can send the first signaling to the terminal device, and the terminal device can correctly receive at least one SSB after knowing the SSB time domain structure.
  • the SSB time domain structure can also be specified by the protocol. In this case, the network device does not need to send the SSB time domain structure to the terminal device, and the terminal device does not need to receive it. Instead, the SSB time domain can be determined directly according to the protocol. Structure helps to save signaling overhead.
  • a second communication method includes: a network device generates at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N +M+X) time units, the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X Time units; wherein each of the time units includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X and M are not At the same time, it is 0, and Y is an integer greater than 1.
  • the network device sends the at least one SSB.
  • the method may be performed by a second communication device, which may be a network device or a communication device capable of supporting the network device to achieve the functions required by the method, and of course may be other communication devices, such as a chip system.
  • a second communication device is a network device.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any one of the (N+M+X) time units are numbered starting from 0.
  • the (N+M+X) time units are numbered starting from 0. Further, the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • the (N+M+X) time units are numbered starting from any number.
  • the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • time unit 0 can still indicate the earliest time unit in the time domain among the (N+M+X) time units
  • time unit 1 can indicate the time in the (N+M+X) time units.
  • the previous time unit of the domain last time can be indicated in turn for subsequent ones.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the method further includes: the network device sends first signaling, the first signaling is used to indicate the SSB time domain structure, the The SSB time domain structure is used to receive the at least one SSB.
  • a first communication device is provided, for example, the communication device is the first communication device as described above.
  • the communication device is configured to execute the foregoing first aspect or any possible implementation of the first aspect.
  • the communication device may include a module for executing the method in the first aspect or any possible implementation of the first aspect, for example, including a processing module and a transceiver module coupled with each other.
  • the communication device is a terminal device. among them,
  • the transceiver module is configured to receive at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit
  • the unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the processing module is configured to perform synchronization and/or obtain system messages according to the received at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any one of the (N+M+X) time units are numbered starting from 0.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver module is further configured to receive first signaling before receiving at least one SSB, where the first signaling is used to indicate the SSB time domain structure;
  • the transceiver module is configured to receive at least one SSB in the following manner: receiving the at least one SSB according to the time domain structure of the SSB.
  • a second communication device is provided, for example, the communication device is the second communication device as described above.
  • the communication device is used to execute the foregoing second aspect or any possible implementation of the second aspect.
  • the communication device may include a module for executing the method in the second aspect or any possible implementation of the second aspect, for example, including a processing module and a transceiver module that are coupled with each other.
  • the communication device is a network device. among them,
  • the processing module is configured to generate at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit
  • the unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the transceiver module is configured to send the at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any one of the (N+M+X) time units are numbered starting from 0.
  • the (N+M+X) time units are numbered starting from 0. Further, the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • the (N+M+X) time units are numbered starting from any number.
  • the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • time unit 0 can still indicate the earliest time unit in the time domain among the (N+M+X) time units
  • time unit 1 can indicate the time in the (N+M+X) time units.
  • the previous time unit of the domain last time can be indicated in turn for subsequent ones.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver module is further configured to send first signaling, and the first signaling is used to indicate the SSB time domain structure.
  • the domain structure is used to receive the at least one SSB.
  • a third communication device is provided.
  • the communication device is, for example, the first communication device described above.
  • the communication device includes a processor and a transceiver, and is used to implement the method described in the first aspect or various possible designs of the first aspect.
  • the communication device is a chip provided in a communication device.
  • the communication device is a terminal device.
  • the transceiver is realized by, for example, an antenna, a feeder, a codec, etc. in the communication device, or if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. Connect with the radio frequency transceiving component in the communication equipment, so as to realize the sending and receiving of information through the radio frequency transceiving component. among them,
  • the transceiver is configured to receive at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit
  • the unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the processor is configured to perform synchronization and/or obtain system messages according to the received at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any one of the (N+M+X) time units are numbered starting from 0.
  • the (N+M+X) time units are numbered starting from 0. Further, the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • the (N+M+X) time units are numbered starting from any number.
  • the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • time unit 0 can still indicate the earliest time unit in the time domain among the (N+M+X) time units
  • time unit 1 can indicate the time in the (N+M+X) time units.
  • the previous time unit of the domain last time can be indicated in turn for subsequent ones.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver is further configured to receive first signaling before receiving at least one SSB, where the first signaling is used to indicate the SSB time domain structure;
  • the transceiver is configured to receive at least one SSB in the following manner: receiving the at least one SSB according to the time domain structure of the SSB.
  • a fourth communication device is provided.
  • the communication device is, for example, the second communication device as described above.
  • the communication device includes a processor and a transceiver, and is used to implement the foregoing second aspect or the methods described in various possible designs of the second aspect.
  • the communication device is a chip provided in a communication device.
  • the communication device is a network device.
  • the transceiver is realized by, for example, an antenna, a feeder, a codec, etc. in the communication device, or if the communication device is a chip set in the communication device, the transceiver is, for example, a communication interface in the chip. Connect with the radio frequency transceiving component in the communication equipment, so as to realize the sending and receiving of information through the radio frequency transceiving component. among them,
  • the processor is configured to generate at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit
  • the unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the transceiver is configured to send the at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain , And the time unit 2*i+1 and the time unit 2*(i+1) are not continuous in the time domain, i is 0,1,..., Any one of the (N+M+X) time units are numbered starting from 0.
  • the (N+M+X) time units are numbered starting from 0. Further, the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • the (N+M+X) time units are numbered starting from any number.
  • the serial numbers of the (N+M+X) time units are sequentially increased according to the time domain.
  • time unit 0 can still indicate the earliest time unit in the time domain among the (N+M+X) time units
  • time unit 1 can indicate the time in the (N+M+X) time units.
  • the previous time unit of the domain last time can be indicated in turn for subsequent ones.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver is further configured to send first signaling, and the first signaling is used to indicate the SSB time domain structure.
  • the domain structure is used to receive the at least one SSB.
  • a fifth communication device is provided.
  • the communication device may be the first communication device in the above method design.
  • the communication device is a chip provided in a terminal device.
  • the communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the fifth communication device is caused to execute the foregoing first aspect or the method in any one of the possible implementation manners of the first aspect.
  • the fifth type of communication device may also include a communication interface, and the communication interface may be a transceiver in a terminal device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the fifth type of communication If the device is a chip set in a terminal device, the communication interface may be an input/output interface of the chip, such as input/output pins.
  • a sixth communication device may be the second communication device in the above method design.
  • the communication device is a chip set in a network device.
  • the communication device includes: a memory for storing computer executable program codes; and a processor, which is coupled with the memory.
  • the program code stored in the memory includes instructions, and when the processor executes the instructions, the sixth communication device executes the second aspect or the method in any one of the possible implementation manners of the second aspect.
  • the sixth communication device may also include a communication interface, and the communication interface may be a transceiver in a network device, for example, implemented by the antenna, feeder, and codec in the communication device, or if the sixth communication
  • the device is a chip set in a network device, and the communication interface may be an input/output interface of the chip, such as input/output pins.
  • a communication system may include the first communication device described in the third aspect, the third communication device described in the fifth aspect, or the fifth communication device described in the seventh aspect , And including the second communication device described in the fourth aspect, the fourth communication device described in the sixth aspect, or the sixth communication device described in the eighth aspect.
  • a computer storage medium stores instructions, which when run on a computer, cause the computer to execute the first aspect or any one of the possible designs of the first aspect The method described.
  • a computer storage medium stores instructions that, when run on a computer, cause the computer to execute the above-mentioned second aspect or any one of the possible designs of the second aspect The method described in.
  • a computer program product containing instructions.
  • the computer program product stores instructions that, when run on a computer, cause the computer to execute the first aspect or any one of the first aspects described above. The method described in the design.
  • a computer program product containing instructions.
  • the computer program product stores instructions that, when run on a computer, cause the computer to execute the second aspect or any one of the possibilities of the second aspect above. The method described in the design.
  • the SSB since at least one of the PSS, SSS, or PBCH occupies a large number of symbols in an SSB, deep coverage or ultra-long-distance coverage can be achieved, so that the SSB provided in the embodiments of this application can meet the requirements of broadband terminal equipment. It can also meet the needs of narrowband terminal equipment.
  • Figure 1 is a schematic diagram of an existing SSB
  • Figure 2 is a schematic diagram of SS burst set
  • FIG. 3 is a schematic diagram of an application scenario of an embodiment of the application.
  • Figure 4 is a schematic diagram of another application scenario of an embodiment of the application.
  • FIG. 5 is a flowchart of a communication method provided by an embodiment of this application.
  • 6A to 6C are schematic diagrams of several different time domain structures of the SSB provided by the embodiments of this application;
  • FIGS. 7A to 7B are schematic diagrams showing that (N+M+X) time units included in the SSB provided by an embodiment of the application are not continuous in the time domain;
  • FIG. 8 is a schematic diagram of (N+M+X) time units included in the SSB provided by an embodiment of the application that are partially discontinuous in the time domain;
  • FIG. 9 is a schematic diagram of at least one SSB located in at least one time window according to an embodiment of this application.
  • FIG. 10 is a schematic diagram of a communication device capable of realizing the functions of a terminal device provided by an embodiment of the application;
  • FIG. 11 is a schematic diagram of a communication device capable of realizing the function of a network device provided by an embodiment of the application;
  • 12A to 12B are two schematic diagrams of a communication device provided by an embodiment of the application.
  • Terminal devices including devices that provide voice and/or data connectivity to users, for example, may include handheld devices with wireless connection capabilities, or processing devices connected to wireless modems.
  • the terminal device may communicate with the core network via a radio access network (RAN) and exchange voice and/or data with the RAN.
  • RAN radio access network
  • the terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device) etc.
  • IoT Internet of things
  • it may include mobile phones (or “cellular” phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on.
  • PCS personal communication services
  • PCS personal communication services
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistants
  • restricted devices such as devices with low power consumption, devices with limited storage capacity, or devices with limited computing power. Examples include bar code, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.
  • RFID radio frequency identification
  • GPS global positioning system
  • laser scanners and other information sensing equipment.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be referred to as wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design everyday wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions that do not depend on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various types of smart bracelets, smart helmets, smart jewelry, etc. for sign monitoring.
  • the various terminal devices described above are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), they can be regarded as on-board terminal devices.
  • the on-board terminal devices are also called on-board units (OBU, for example) ).
  • the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.
  • the embodiments of the present application may involve two types of terminal equipment: broadband terminal equipment and narrowband terminal equipment.
  • the conditions that broadband terminal equipment and narrowband terminal equipment need to meet include but are not limited to the following:
  • the maximum bandwidth capability of the narrowband terminal device is less than or equal to the minimum bandwidth capability of the broadband terminal device.
  • the narrowband terminal equipment is a narrowband Internet of things (NB-IoT) terminal equipment
  • the broadband terminal equipment is a long term evolution (LTE) terminal equipment.
  • the data transmission bandwidth of NB-IoT terminal equipment is 1 RB, that is, 180kHz or 200kHz (including guard band), because the frequency resource occupied by PSS/SSS under the LTE system is 6 RBs, that is, 1.08MHz or 1.44MHz (including Guard band), so the minimum bandwidth capability of broadband terminal equipment can be considered not less than 1.08MHz.
  • the maximum bandwidth capability of narrowband terminal equipment is less than or equal to the minimum bandwidth capability of broadband terminal equipment.
  • the narrowband terminal device is an NB-IoT terminal device and the broadband terminal device is an NR terminal device.
  • the minimum bandwidth capability of the NR terminal device can be considered as 20 RBs, where each RB includes 12 subcarriers
  • the minimum bandwidth capability of a narrowband terminal device is smaller than that of a broadband terminal device. If a data transmission channel is established between a terminal device and a network device, generally speaking, the terminal device needs to first receive the synchronization channel and the broadcast channel sent by the network device. Therefore, it can be considered that the bandwidth corresponding to the synchronization channel and the broadcast channel sent by the network device is The minimum bandwidth capability required by the terminal device.
  • the narrowband terminal device can also be considered as a bandwidth limited (BL) terminal device. It should be noted that the BL terminal device may also have other bandwidth characteristics than 1 and 2, which are not specifically limited.
  • narrowband terminal equipment can also be considered to need to maintain normal data communication with network equipment through coverage enhancement (CE) technology, while broadband terminal equipment can maintain normal data communication with network equipment even if it does not pass CE technology.
  • CE technologies include but are not limited to technologies such as repeated data transmission or power enhancement.
  • broadband terminal equipment and narrowband terminal equipment need to repeat data transmission in certain scenarios, and maintain normal data communication with network equipment, then the maximum number of repetitions required for narrowband terminal equipment and network equipment to maintain data communication , Is less than the maximum number of repetitions required by the broadband terminal equipment and network equipment to maintain data communication.
  • narrowband terminal equipment can also be considered as low power wide coverage access (LPWA) terminal equipment
  • broadband terminal equipment can be considered as enhanced mobile broadband (eMBB) Terminal equipment or ultra-reliability low-latency communication (URLLC) terminal equipment.
  • LPWA low power wide coverage access
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliability low-latency communication
  • the same terminal device can have both narrowband and broadband capabilities, that is, the terminal device can be used as both a broadband terminal device and a narrowband terminal device, or in other words, the terminal device can also have non- CE and CE capabilities, the terminal device can not only rely on CE technology to maintain normal communication with access network equipment, but also rely on CE technology to maintain normal communication with access network equipment.
  • a terminal device may only have narrowband capability but not broadband capability, then the terminal device is only a narrowband terminal device instead of a broadband terminal device, etc. That is, the terminal device can only rely on CE technology to maintain normal communication with the access network device. Both of these two types of terminal devices can apply the technical solutions provided in the embodiments of the present application.
  • Network equipment including, for example, access network (AN) equipment, such as a base station (e.g., access point), which may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network
  • AN access network
  • a base station e.g., access point
  • a network device in a V2X technology is a roadside unit (RSU).
  • the base station can be used to convert received air frames and Internet Protocol (IP) packets to each other as a router between the terminal equipment and the rest of the access network, where the rest of the access network can include the IP network.
  • the RSU can be a fixed infrastructure entity that supports V2X applications and can exchange messages with other entities that support V2X applications.
  • the network equipment can also coordinate the attribute management of the air interface.
  • the network equipment may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in an LTE system or advanced long-term evolution (LTE-A), or may also include a 5G NR system
  • NodeB or eNB or e-NodeB, evolutional Node B in an LTE system or advanced long-term evolution (LTE-A)
  • LTE-A long-term evolution
  • the next generation node B may also include a centralized unit (CU) and a distributed unit (distributed unit) in a cloud access network (cloud radio access network, Cloud RAN) system DU), the embodiments of the present application are not limited.
  • the mentioned cell may be a cell corresponding to a base station, and the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmit power , Suitable for providing high-speed data transmission services.
  • the carrier in the LTE system or the NR system can have multiple cells working at the same frequency at the same time.
  • the concept of a carrier and a cell can be considered equivalent.
  • CA carrier aggregation
  • the concept of carrier and cell is equivalent.
  • a terminal device accessing a carrier is equivalent to accessing a cell.
  • DC dual connectivity
  • system and “network” in the embodiments of the present application can be used interchangeably.
  • “At least one” means one or more, and “multiple” means two or more.
  • the character “/” generally indicates that the related object is a “or” relationship.
  • At least one of the following” or similar expressions refers to any combination of these items, including any combination of single items or plural items.
  • At least one item (a) in a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be a single or multiple .
  • the embodiments of the present application refer to ordinal numbers such as "first” and "second” to distinguish between multiple objects, and are not used to limit the order, timing, priority, or Importance.
  • the first synchronization signal and the second synchronization signal are only for distinguishing different synchronization signals, but do not indicate the difference in content, priority, transmission order, or importance of the two synchronization signals.
  • 5G NR is a global 5G standard based on OFDM-based brand new air interface design, and is also a very important cellular mobile technology foundation for the next generation.
  • the business of 5G technology is very diverse, and it can be oriented to eMBB, URLLC, and massive machine-type communication (mMTC).
  • eMBB terminal equipment can access the NR system by acquiring the broadband information of the NR system
  • some mMTC terminal equipment can access the NR system by acquiring the narrowband information of the NR system due to design cost or low power consumption considerations;
  • mMTC narrowband information of the NR system due to design cost or low power consumption considerations
  • terminal equipment does not require high data transmission rates, but generally requires deep coverage , Generally can be accessed through narrowband; on the other hand, such as surveillance video backhaul, etc., require relatively high data transmission rate, so it can be regarded as a terminal device with medium and high-end capabilities, and generally can be accessed through broadband.
  • the terminal device can synchronize with the base station by receiving the SSB, and obtain system messages.
  • PSS, SSS and PBCH together form an SSB.
  • 1 SSB occupies 4 OFDM symbols, which are symbols 0 to 3.
  • 1 SSB occupies 20 RBs, that is, 240 subcarriers.
  • the subcarrier numbers are 0 ⁇ 239.
  • PSS is located on 127 subcarriers in the middle of symbol
  • SSS is located on 127 subcarriers in the middle of symbol 2.
  • guard subcarriers In order to protect PSS and SSS, the energy of different guard subcarriers is set to 0, that is, there are guard subcarriers that are not used to carry signals, and 8 subcarriers and 9 subcarriers are reserved on both sides of SSS as guard bands.
  • Carriers such as the blank areas on the upper and lower sides of the SSS in Fig. 1, are protection subcarriers.
  • PBCH occupies all the subcarriers of symbol 1 and symbol 3, and a part of the remaining subcarriers except the subcarrier occupied by SSS among all the subcarriers of symbol 2 (the remaining subcarriers except for the guard subcarrier Other subcarriers).
  • a synchronization signal burst set refers to a set of SSBs included in a beam sweep (beam sweep).
  • the period of the SS burst set is equivalent to the period of the SSB corresponding to a specific beam, and can be configured as 5ms (milliseconds), 10ms, 20ms, 40ms, 80ms, or 160ms.
  • 20ms is the default period, that is, the period assumed when the terminal device performs the initial cell search.
  • L max 4 or 8 or 64.
  • each SS burst set is always located in a time interval of 5ms, which is the first half or the second half of a 10ms frame.
  • the period of the SS burst set is 20 ms and one SS burst set includes L SSBs as an example.
  • Future terminal devices have multiple bandwidth capabilities, such as narrowband capabilities and broadband capabilities, and face more diverse application scenarios and business scenarios.
  • narrowband terminal equipment with a bandwidth less than 20RB, it is impossible to detect the current SSB.
  • the performance of the existing SSB needs to be enhanced.
  • the embodiment of the present application provides a new SSB.
  • This SSB may include a PSS that occupies N time units, an SSS that occupies M time units, and a PBCH that occupies X time units, which is equivalent to that these signals are in the time domain.
  • the above can occupy multiple symbols for transmission, and the embodiments of this application do not limit the frequency domain range of the SSB.
  • the SSB can still occupy 20 RBs in the frequency domain, or it can occupy less than 20 RBs, and it can occupy less than 20 RBs.
  • the SSB provided in the embodiments of the present application can not only meet the needs of broadband terminal equipment, but also meet the needs of narrowband terminals
  • the equipment requirements can be applied to scenarios such as deep coverage or ultra-distance coverage, as well as IoT services.
  • the technical solutions provided by the embodiments of the present application can be used in wireless communication systems, including 4.5G or 5G wireless communication systems, and further evolution systems based on LTE or NR, and future wireless communication systems.
  • the first application scenario of the embodiment of the present application may be a wireless communication system capable of simultaneously serving terminal devices with different bandwidth capabilities.
  • a wireless communication system capable of simultaneously serving terminal devices with different bandwidth capabilities.
  • an LTE system or an NR system that can simultaneously serve mMTC terminal equipment and eMBB terminal equipment.
  • FIG. 3 is a network architecture applied in an embodiment of this application.
  • the network architecture shown in FIG. 3 is suitable for the first application scenario of the embodiment of this application.
  • Figure 3 includes a network device and two terminal devices, namely terminal device 1 and terminal device 2. Both of these terminal devices can be connected to the network device.
  • terminal device 1 is a terminal device that supports broadband capabilities, such as existing Version 15 NR terminal equipment
  • terminal equipment 2 is a terminal equipment supporting narrowband capabilities, for example, a future version of a narrowband mMTC terminal equipment.
  • the number of terminal devices in FIG. 3 is just an example. In practical applications, a network device can provide services for multiple terminal devices.
  • the second application scenario of the embodiment of the present application may be a wireless communication system that can only serve terminal devices with narrowband capabilities, for example, an LTE system or an NR system that only serves NB-IoT terminal devices.
  • FIG. 4 is another network architecture applied in the embodiment of this application.
  • the network architecture shown in FIG. 4 is suitable for the second application scenario of the embodiment of this application.
  • Figure 4 includes a network device and a terminal device.
  • the terminal device can be connected to the network device.
  • the terminal device is a terminal device supporting narrowband capabilities, such as an NB-IoT terminal device.
  • narrowband capabilities such as an NB-IoT terminal device.
  • the number of terminal devices in FIG. 4 is just an example.
  • a network device can provide services for multiple terminal devices.
  • the network device in FIG. 3 or FIG. 4 is, for example, an access network device, such as a base station.
  • the network device corresponding to the different systems in different devices for example, in the fourth generation mobile communication technology (the 4 th generation, 4G) system, the eNB may correspond to, corresponding to the network device 5G 5G system, e.g. gNB.
  • each frame consists of 10 subframes with a length of 1ms (subframe), and one subframe includes Symbols, where Represents the number of symbols included in a subframe under the subcarrier interval ⁇ , Indicates the number of symbols included in a slot, Represents the number of slots (slots) included in a subframe under the subcarrier interval ⁇ .
  • Each frame is divided into two equal-sized half-frames, where half-frame 0 includes sub-frames 0 to 4, and half-frame 1 includes sub-frames 5 to 9.
  • half-frame 0 includes sub-frames 0 to 4
  • half-frame 1 includes sub-frames 5 to 9.
  • one subframe contains Timeslots
  • the timeslot number in a subframe is A frame contains Timeslots
  • the timeslot number in a frame is with The value of is shown in Table 1 (normal cyclic prefix) and Table 2 (extended cyclic prefix).
  • the embodiment of the present application provides a communication method. Please refer to FIG. 5, which is a flowchart of the method. In the following introduction process, take the method applied to the network architecture shown in FIG. 3 or FIG. 4 as an example.
  • the method can be executed by two communication devices, for example, the first communication device and the second communication device.
  • the first communication device may be a network device or a communication device capable of supporting the network device to realize the functions required by the method
  • the first communication device may be a terminal device or a communication device capable of supporting the terminal device to realize the functions required by the method
  • it can also be other communication devices, such as chip systems.
  • the second communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, of course It may also be other communication devices, such as a chip system. And there are no restrictions on the implementation of the first communication device and the second communication device.
  • the first communication device may be a network device, the second communication device is a terminal device, or the first communication device is a network device and the second communication device is a terminal device.
  • the network device is, for example, a base station.
  • the method is performed by the network device and the terminal device as an example, that is, the first communication device is a network device and the second communication device is a terminal device as an example.
  • the network device described below may be the network device in the network architecture shown in FIG. 3
  • the terminal device described below may be the network device shown in FIG. 3.
  • the terminal device 1 or the terminal device 2 in the network architecture of FIG. 4 is applied to the network architecture shown in FIG. 4, the network device described below may be the network device in the network architecture shown in FIG. 4.
  • the terminal device described below may be the terminal device in the network architecture shown in FIG. 4.
  • the embodiment of the present application only takes the execution through network equipment and terminal equipment as an example, and is not limited to this scenario. For example, it may also be executed through terminal equipment and terminal equipment. If this is the case, the following
  • the network device of can be replaced by the first terminal device, and the terminal device below can be replaced by the second terminal device.
  • the first terminal device can be a terminal device that supports both broadband and narrowband capabilities, or a terminal device that supports narrowband capabilities.
  • the second terminal device may be a terminal device that supports both broadband capability and narrowband capability, or a terminal device that supports narrowband capability.
  • the network device generates at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, the one SSB occupies (N+M+X) time units, and the one SSB
  • the time domain structure of the SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit includes Y N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1.
  • the one SSB may be any SSB of the at least one SSB, and is not limited to a specific one of them.
  • PSS and SSS may be referred to as the first SS and the second SS, respectively, and the embodiment of the present invention does not limit the names.
  • one SSB may include at least one of PSS, SSS and PBCH.
  • N is a positive integer
  • M and X are 0, then the SSB only includes PSS; or for an SSB, N and X are 0, and M is a positive integer, then the SSB only includes SSS;
  • X is a positive integer, N and M are 0, then the SSB only includes PBCH; or for an SSB, N and X are positive integers, M is 0, then the SSB only includes PSS and PBCH; or for an SSB, N and M are positive integers, and X is 0, then the SSB only includes PSS and SSS; or for an SSB, N, M, and X are all positive integers, then the SSB includes PSS, SSS and PBCH, etc.
  • each SSB in at least one SSB may contain the same content, for example, each SSB in at least one SSB includes only PSS and PBCH, or each SSB in at least one SSB includes PSS, SSS, and PBCH; or, different SSBs in at least one SSB contain different contents, for example, one SSB in at least one SSB includes only PBCH, and at least one SSB in addition to the SSB includes only PSS And PBCH.
  • the time domain structure of one SSB is introduced.
  • the SSB satisfies that PSS occupies N time units, SSS occupies M time units, and PBCH occupies X time units. In fact, for at least one SSB, it can be Each of the SSBs satisfies this time domain structure. However, if the number of at least one SSB is greater than 1, then in at least one SSB, the number of time units occupied by the PSS included in different SSBs may be the same or different, that is, for different SSBs in at least one SSB In other words, the corresponding value of N can be the same or different.
  • the value of N corresponding to the two SSBs is the same; or, at least one SSB includes the first SSB and the second SSB.
  • the number of time units occupied by the SSS included in different SSBs can be the same or different, that is, for different SSBs in at least one SSB, the corresponding value of M can be the same , It can be different.
  • the number of time units occupied by the PBCH included in different SSBs can be the same or different. That is to say, for different SSBs in at least one SSB, the value of the corresponding X can be They are the same or they can be different.
  • the values of N, M, and X will not affect each other.
  • the corresponding values of N are different, and the corresponding values of M and X are both Respectively the same, or only the value of the corresponding M is different, and the values of the corresponding N and X are the same, or only the value of the corresponding X is different, and the values of the corresponding M and N are the same, or The values of the corresponding N and M are different, and the values of the corresponding X are the same, or the values of the corresponding N and X are different, and the values of the corresponding M are the same, or the corresponding M
  • the values of and X are different, and the values of the corresponding N are the same, or the values of the corresponding N, M, and X are the same, or the values of the corresponding N, M, and X are all different.
  • N, M, and X corresponding to each SSB in at least one SSB can be configured by the network device, or specified by the protocol and stored in the network device and the terminal device, and the specific value is not limited.
  • N can be greater than or equal to M for an SSB.
  • the terminal device performs initial access, the terminal device is completely blind when detecting the PSS, the terminal device does not know the location of the PSS, and the detection is completely realized through the blind detection.
  • network equipment can configure more dense PSS in the time domain to speed up the blind detection of PSS by terminal equipment.
  • the terminal device has already received the PSS when detecting the SSS.
  • the terminal device is relatively easy to detect the SSS. Therefore, the number of times the network device sends the SSS can be less than the number of times the PSS is sent, so N can be greater than M.
  • N can also be equal to M.
  • X can be greater than or equal to N for an SSB.
  • the terminal device can receive the PSS multiple times to increase energy and improve the probability of correct reception. The same is true for the SSS.
  • the content of the PBCH sent by the network device at different times may be different. For example, the PBCH sent by the network device within a period of time carries the first content, and the content carried by the PBCH sent in the next period of time may become the first content.
  • X can be greater than N.
  • X can also be equal to N, or X can also be less than N due to other considerations.
  • Figure 6A is a schematic diagram of an SSB.
  • the PSS occupies 4 time units
  • the SSS occupies 2 time units
  • the PBCH occupies 4 time units, that is, the SSB is an example where N is greater than M and X is equal to N.
  • Figure 6B is a schematic diagram of another SSB.
  • PSS occupies 2 time units
  • SSS occupies 0 time units, that is, does not include SSS
  • PBCH occupies 2 time units.
  • the SSB is an example where N is greater than M and X is equal to N.
  • Figure 6C is a schematic diagram of another SSB.
  • PSS occupies 2 time units
  • SSS occupies 0 time units, that is, does not include SSS
  • PBCH occupies 2 time units.
  • the SSB is an example where N is greater than M and X is equal to N.
  • the difference between Figure 6B and Figure 6C is that the time slot where the PSS in Figure 6B is located is adjacent to the time slot where the PBCH is located, that is, continuous, while the time slot where the PSS in Figure 6C is located is the time slot where the PBCH in Figure 6C is located.
  • the gaps are not adjacent, that is, discontinuous.
  • the thicker vertical lines indicate the dividing lines of time slots.
  • N time units, M time units, and X time units are (N+M+X) time units in total.
  • Each of the (N+M+X) time units carries only one type of signal.
  • the (N+M+X) time units may not overlap in the time domain, as shown in Figs. 6A, 6B, 6C, 7A and 7B.
  • This non-overlapping time domain structure is more suitable for narrowband terminal equipment, because the (N+M+X) time units can be located in the same bandwidth.
  • the (N+M+X) time units may also partially overlap or completely overlap in the time domain.
  • At least 2 time units in the (N+M+X) time units overlap in the time domain but do not overlap in the frequency domain, that is, the at least 2 time units are frequency division multiplexed.
  • N time units do not overlap in the time domain
  • M time units do not overlap in the time domain
  • the N time units and the M time units overlap partially or completely in the time domain.
  • the X The time units do not overlap with the N time units and the M time units respectively.
  • Each time unit in an SSB can be consecutive Y symbols or partially discontinuous Y symbols or completely discontinuous Y symbols in the time domain.
  • the embodiment of the present application mainly uses Y symbols included in one time unit Take continuous time domain as an example.
  • Y can be equal to 4, that is, each time unit in an SSB consists of 4 symbols.
  • PSS occupies 4*N symbols
  • SSS occupies 4*M symbols
  • BCH occupies 4*X symbols.
  • a time unit of an SSB can be located at symbol 2, symbol 3, symbol 4, and symbol 5 in a time slot, or at symbol 8, symbol 9, symbol 10, and symbol 11 in a time slot, or at Symbol 4, Symbol 5, Symbol 6, and Symbol 7 in one slot.
  • the network device can either send the SSB in the prior art or the SSB provided in the embodiments of the present application to realize the integration of bandwidth and narrowness.
  • the value of Y can be determined by the network device or specified by agreement.
  • the number of (N+M+X) time units, or the serial number (or called index) of (N+M+X) time units can be (0, 1,... ,N+M+X-1).
  • N+M+X 4 corresponding to an SSB
  • the four time units are called time unit 0, time unit 1, time unit 2, and time unit 3 in the order of time domain.
  • numbering units in the time domain such as symbols, time slots, or time units, they all start from 0.
  • the first symbol is marked as symbol 0, or the first time unit is marked It is time unit 0, etc., but it can also be numbered from 1 in practical applications.
  • the first symbol is marked as symbol 1, or the first time unit is recorded as time unit 1, etc.
  • This article only takes the numbering from 0 as an example
  • the technical solutions of the embodiments of the present application can also cover numbers starting from 1 or other numerical values. For example, when numbering (N+M+X) time units, you can start numbering from any numerical value.
  • time unit 0 indicates the earliest time unit or starting time unit in the time domain among (N+M+X) time units, and all of the (N+M+X) time units except time unit 0
  • the numbers of subsequent time units are sequentially increased in the order of the time domain.
  • (N+M+X) time units are discontinuous (or discontinuous) in the time domain.
  • the "discontinuous” means that any two of the (N+M+X) time units are not continuous in the time domain.
  • the “discontinuous” means that at least two of the (N+M+X) time units with adjacent numbers (or indexes) are not continuous in the time domain.
  • the “discontinuous” may mean that there is at least one time unit in (N+M+X) time units, and the Y symbols contained therein are not continuous in the time domain.
  • an SSB includes 4 time units, which are time unit 0, time unit 1, time unit 2, and time unit 3 in the order of time domain.
  • time unit 0 and time unit 1 are not continuous in time domain.
  • Time unit 1 and time unit 2 are not continuous in the time domain
  • time unit 2 and time unit 3 are not continuous in the time domain.
  • time unit 0 and time unit 1 are not continuous in the time domain
  • time unit 1 and time unit 2 are continuous in the time domain
  • time unit 2 and time unit 3 are continuous in the time domain.
  • (N+M+X) time units are discontinuous in the time domain, so that (N+M+X) time units are gaps in the time domain (that is, discontinuous time domain positions) It can also carry other signals, which is also helpful for compatibility with existing systems.
  • a low-latency service such as URLLC
  • FIG. 6A is a schematic diagram of an SSB, where X is equal to N and N is greater than M as an example.
  • PSS occupies 4 time units
  • SSS occupies 2 time units
  • PBCH occupies 4 time units.
  • PSS is located in symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in the first and second time slots
  • SSS is located in symbol 2, symbol 3 in the third time slot
  • Symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11, symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in the fourth slot Symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11, symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in the fourth slot .
  • FIG. 6B is a schematic diagram of an SSB, where X is equal to N and M is equal to 0 as an example.
  • PSS occupies 2 time units
  • PBCH occupies 2 time units.
  • PSS is located in symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in one time slot
  • PBCH is located in symbol 2, symbol 3, symbol 4, and symbol 3 in the next time slot.
  • Symbol 5 Symbol 8, Symbol 9, Symbol 10, and Symbol 11.
  • FIG. 6C is a schematic diagram of an SSB, where X is equal to N and M is equal to 0 as an example.
  • PSS occupies 2 time units
  • PBCH occupies 2 time units.
  • PSS is located in symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 of time slot n
  • PBCH is located in symbol 2, symbol 3, symbol 4, and symbol of time slot n+2.
  • FIG. 7A is a schematic diagram of an SSB, where X is greater than N and N is equal to M as an example.
  • PSS occupies 1 time unit
  • SSS occupies 1 time unit
  • PBCH occupies 2 time units.
  • PSS is located in symbol 2, symbol 3, symbol 4, and symbol 5 in one slot
  • SSS is located in symbol 8, symbol 9, symbol 10, and symbol 11 in the same slot
  • PBCH is located in the symbol in the next slot 2.
  • Symbol 3 Symbol 4, Symbol 5, Symbol 8, Symbol 9, Symbol 10, and Symbol 11.
  • PSS occupies 2 time units
  • SSS occupies 2 time units
  • PBCH occupies 2 time units.
  • PSS is located in symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in one time slot
  • SSS is located in symbol 2, symbol 3, symbol 4, Symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11, the PBCH is located at symbol 2, symbol 3, symbol 4, symbol 5, symbol 8, symbol 9, symbol 10, and symbol 11 in the next time slot.
  • FIG. 6A, FIG. 6B, FIG. 6C, FIG. 7A, or FIG. 7B It can be seen from FIG. 6A, FIG. 6B, FIG. 6C, FIG. 7A, or FIG. 7B that the (N+M+X) time units included in one SSB are all discontinuous in the time domain.
  • the SSB structure shown in the five figures can be well compatible with the existing NR system with a subcarrier spacing of 15kHz or 30kHz, realize the integration of width and narrowness, and reduce the delay impact on URLLC.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain, and the time unit 2*i+1 and Time unit 2*(i+1) is not continuous in time domain, i is 0,1,..., Any of which Means round down.
  • an SSB includes 4 time units, namely time unit 0, time unit 1, time unit 2, and time unit 3. Then, according to this rule, it can be determined that time unit 0 and time unit 1 are continuous in the time domain (continuous , It can also be considered as being adjacent.
  • time units 2 and 3 are continuous in the time domain, but time unit 1 And time unit 2 is not continuous in time domain. That is to say, under this rule, among the (N+M+X) time units included in an SSB, starting from time unit 0, the two time units corresponding to each two adjacent indexes are in the time domain. Continuous.
  • two consecutive time units in the time domain can be regarded as a set of time units. Then an SSB includes at least one set of time units. If the number of at least one set of time units is greater than 1, then at least one The group time units are not continuous.
  • the (N+M+X) time units are partially discontinuous in the time domain, so that the gap (that is, the discontinuous time domain position) of the (N+M+X) time units in the time domain ) Can also carry other signals, which is also helpful for compatibility with existing systems and existing URLLC services.
  • FIG. 8 is a schematic diagram of an SSB.
  • the SSB is an example where X is greater than N and N is equal to M.
  • PSS occupies 1 time unit
  • SSS occupies 1 time unit
  • PBCH occupies 2 time units.
  • PSS is located in symbol 4, symbol 5, symbol 6, and symbol 7 in one time slot
  • SSS is located in symbol 8, symbol 9, symbol 10, and symbol 11 in the same time slot
  • PBCH is located in the next time slot.
  • Symbol 4 Symbol 5, Symbol 6, Symbol 7, Symbol 8, Symbol 9, Symbol 10, and Symbol 11.
  • the SSB in Figure 8 includes two sets of time units, where the 2 time units occupied by PSS and SSS constitute one set of time units, and the 2 time units occupied by PBCH constitute another set of time units. It can be seen from Figure 8 Until now, the two time units included in each of the two sets of time units are continuous in the time domain, but the two sets of time units are not continuous in the time domain.
  • the SSB structure shown in Fig. 8 is well compatible with the existing NR system with a subcarrier spacing of 30kHz or 120kHz, realizes the integration of width and narrowness, and reduces the delay impact on URLLC.
  • time slots the PSS, SSS and PBCH included in the SSB are located, and which symbols are located in the corresponding time slots, can be configured by network equipment or specified by agreement.
  • one SSB is within a period of time, and this period of time can be considered as a time window.
  • the current SSB is located in a time window of 5 ms.
  • FIG. 6A to FIG. 6C, FIG. 7A to FIG. 7B or FIG. 8 that the embodiment of the present application also takes an SSB in a time window of 5 ms as an example.
  • the embodiment of the present application does not limit the length of the time window in which one SSB is located, and other lengths other than 5 ms may also be used. It is just that the SSB in the embodiment of the present application is also located within the time window of 5 ms, which helps to be compatible with the existing system.
  • At least one SSB may be located in one or more time windows.
  • K SSBs are respectively located in K time windows, that is, each time window includes 1 SSB.
  • K SSBs are located in the same time window.
  • the network device can configure the multiple SSBs in one time window to use the same beam direction or different beam directions, which is not limited in the embodiment of the present application.
  • the time domain structure of SSB may include the value of N corresponding to SSB, the value of M corresponding to SSB, the value of X corresponding to SSB, and the (N+M+X) time units included in SSB in the time domain At least one of occupied symbols, time slots or time windows. For two SSBs, as long as one of the above items is different, the time domain structure of the two SSBs is considered to be different.
  • the first SSB and the second SSB if N, M, and X in the first SSB are all positive integers (that is, the first SSB includes PSS, SSS, and PBCH), N and X in the second SSB are positive integers, and M is 0 (that is, the second SSB only includes PSS and PBCH), then the time domain structures of the two SSBs are different; or, the (N+M+X) time units included in the first SSB are not continuous in the time domain, and the first SSB The time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units included in the two SSB are continuous in the time domain, and the time unit 2*i+1 and the time unit 2*(i +1) Discontinuous in the time domain, then the time domain structure of the two SSBs is different, and so on.
  • At least one SSB includes at least two SSBs with different time-domain structures, then a part of the SSBs included in at least one SSB is the same in time-domain structure, and the rest of the SSBs are not the same in time-domain structure, or at least one The SSBs included in the SSB are all different in time domain structure.
  • At least one SSB includes a first SSB and a second SSB, where N, M, and X in the first SSB are all positive integers (that is, the first SSB includes PSS, SSS, and PBCH), and N and X in the second SSB are A positive integer, and M is 0 (that is, the second SSB only includes PSS and PBCH).
  • at least one SSB includes a first SSB, a second SSB, and a third SSB, where the first SSB includes PSS, SSS, and PBCH, the second SSB includes only PSS and PBCH, and the third SSB includes only PBCH.
  • At least one SSB includes a first SSB, a second SSB, a third SSB, and a fourth SSB, where the first SSB and the third SSB include PSS, SSS, and PBCH, and the second SSB and the fourth SSB include only PSS and PBCH .
  • the time domain structure or content contained in each SSB in the at least one SSB can be configured by the network device or specified through a protocol.
  • At least one SSB may be located in multiple time windows, and the time domain structures of SSBs located in different time windows may all be the same or may be different.
  • FIG. 9 which includes two SSBs, and the two SSBs are two SSBs of the at least one SSB.
  • SSB1 in the first time window in Figure 9 includes PSS, SSS, and PBCH, that is, N, M, and X are all positive integers
  • SSB2 in the second time window includes only PSS and PBCH, but not SSS , That is, N and X are positive integers, and M is 0.
  • the time domain structure of the two SSBs is different.
  • the time domain structure of SSB1 in the first time window in Fig. 9 is shown in Fig. 7B
  • the time domain structure of SSB2 in the second time window is shown in Fig. 6B or Fig. 6C.
  • the time domain of the two SSBs The structure is different.
  • each SSB has a time domain structure.
  • the time domain structure of different SSBs in at least one SSB may be the same or different, and the time domain structure of at least one SSB can be regarded as a whole, for example, it is called the SSB time domain structure, or is called the SSB structure, or called SSB patterns, etc., the embodiments of the present application do not limit the terms of the SSB time domain structure.
  • the SSB time domain structure can indicate the time domain structure of each SSB in at least one SSB. For example, if the time domain structure of each SSB in at least one SSB is the same, then the time domain structure of the SSB only includes the time domain structure of one SSB.
  • the time domain structure of this SSB is the time domain structure of each SSB in at least one SSB. Domain structure, or, if the time domain structure of different SSBs in at least one SSB is different, then the SSB time domain structure may include the time domain structure of multiple SSBs, and the time domain structure of these multiple SSBs may indicate that at least one SSB is The time domain structure of each SSB.
  • the number of time domain structures of the SSB included in the SSB time domain structure is the same as the number of at least one SSB, SSB and SSB
  • the time domain structure of the SSB included in the time domain structure is in a one-to-one correspondence, or if at least one SSB has the same time domain structure of some SSBs and another part of the SSB has a different time domain structure, then the SSB time domain structure is The number of time-domain structures of the included SSBs may be less than the number of at least one SSB. It can be understood that only one part of the same time-domain structure is included in the SSB time-domain structure, which helps to simplify the SSB time-domain structure.
  • the network device sends the at least one SSB, and the terminal device receives the at least one SSB from the network device.
  • the at least one SSB received by the terminal device is part or all of the at least one SSB sent by the network device, that is, the number of SSBs received by the terminal device may be less than or equal to the number of SSBs sent by the network device. Because the network device faces multiple terminal devices in the cell, different beam directions or different time domain and/or frequency domain densities can be used to send different SSBs to different terminal devices. For example, if a terminal device only receives SSB in one beam direction, the SSB received by the terminal device is a part of the SSB sent by the network device.
  • the terminal device needs to obtain the SSB time domain structure so that at least one SSB can be detected.
  • the terminal device does not know the location of the SSB, so the terminal device will blindly detect the SSB; or, for the terminal device in the connected state, the location of the SSB is generally known, so it can be directly Detection, that is, direct reception. Therefore, in the embodiment of the present application, the “receiving” of the terminal device and the “detection” of the terminal device can be considered as the same process, that is, the “receiving” is also the “detecting”. Then, the terminal device detects SSB, there may be two results:
  • the SSB is not detected (that is, not received).
  • the terminal device before or at the same time that the terminal device receives at least one SSB, the terminal device needs to obtain the SSB time-frequency structure, including but not limited to the following three methods:
  • the SSB time domain structure is predefined by the standard, and the SSB time domain structure is pre-configured in the terminal device, or in other words, the terminal device pre-stores the SSB time-frequency structure.
  • the terminal device determines the SSB time-frequency structure, specifically, the terminal device obtains the SSB time-domain structure pre-configured or stored in the terminal device;
  • the terminal device receives the first signaling, the first signaling indicates the SSB time-frequency structure, the first signaling is sent by the network device, for example, and the terminal device can determine the SSB time-domain structure according to the first signaling .
  • the first signaling indicates the value of N, M and/or X.
  • the first signaling indicates the positions of (N+M+X) time units in the time domain.
  • the first signaling indicates one or more of at least one SSB time domain structure introduced in the embodiment of the present application.
  • the first signaling is, for example, high-level signaling, such as radio resource control (RRC) signaling or media access control control element (MAC CE), etc.; or, the first signaling is, for example, Physical layer signaling, such as downlink control information (DCI), etc.
  • RRC radio resource control
  • MAC CE media access control control element
  • DCI downlink control information
  • the terminal device can directly obtain the SSB time domain structure according to the narrowband capability.
  • a terminal device can access the system according to the broadband capability or the narrowband capability. If the terminal device is in a scenario of deep coverage or ultra-distance coverage, then the terminal device can choose to obtain the SSB time domain structure according to the narrowband capability to improve the efficiency of the terminal device's access to the system. For example, if a terminal device with a supported bandwidth greater than or equal to 5 MHz is considered to be a broadband terminal device, then, if the bandwidth supported by the terminal device is greater than or equal to 5 MHz, the terminal device can obtain the SSB time domain structure according to the narrowband capability.
  • the bandwidth occupied by the at least one SSB received by the terminal device in the frequency domain is less than 20 RBs (resource block), or less than or equal to 12 RBs, where one RB occupies Q in the frequency domain.
  • the SSB time domain structure provided by the embodiments of the present application can meet the requirements of ultra-long-distance coverage and deep coverage.
  • the terminal device performs synchronization and/or obtains a system message according to the received at least one SSB.
  • the terminal device may synchronize with the network device according to at least one SSB, or obtain system information according to at least one SSB, or synchronize with the network device and obtain system information according to at least one SSB.
  • the terminal device may first detect the PSS, then detect the SSS, obtain time-frequency synchronization and/or the identification number (ID) of the physical cell, and finally detect the PBCH to obtain system messages. Subsequently, the terminal device can perform data transmission with the network device based on the time-frequency synchronization and system messages.
  • the master information block (master information block, MIB) carried on the PBCH within 160 ms is the same.
  • MIB master information block
  • the PBCH in the new SSB provided by the embodiment of this application has more repetition times, and the terminal equipment can be based on more Combined detection of two PBCHs enhances the receiving performance of terminal equipment, which is suitable for narrowband terminal equipment and coverage enhancement scenarios.
  • FIG. 10 shows a schematic structural diagram of a communication device 1000.
  • the communication device 1000 can implement the functions of the terminal device mentioned above.
  • the communication apparatus 1000 may be the terminal device described above, or may be a chip provided in the terminal device described above.
  • the communication device 1000 may include a processor 1001 and a transceiver 1002.
  • the processor 1001 may be used to execute S53 in the embodiment shown in FIG. 5, and/or to support other processes of the technology described herein, for example, it may execute the above-mentioned terminal equipment except for receiving and sending. All other processes or part of other processes outside the process.
  • the transceiver 1002 can be used to perform S52 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can perform all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the transceiver 1002 is configured to receive at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units,
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units;
  • the time unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is greater than 1.
  • the processor 1001 is configured to perform synchronization and/or obtain system messages according to the received at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain, and the time unit 2*i+1 And time unit 2*(i+1) is not continuous in time domain, i is 0,1,..., Any of them.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver 1002 is further configured to receive first signaling before receiving at least one SSB, where the first signaling is used to indicate the SSB time domain structure;
  • the transceiver 1002 is configured to receive at least one SSB in the following manner: receiving the at least one SSB according to the time domain structure of the SSB.
  • FIG. 11 shows a schematic structural diagram of a communication device 1100.
  • the communication device 1100 can implement the functions of the network device mentioned above.
  • the communication device 1100 may be the network device described above, or may be a chip set in the network device described above.
  • the communication device 1100 may include a processor 1101 and a transceiver 1102. Wherein, the processor 1101 may be used to execute S51 in the embodiment shown in FIG. 5, and/or to support other processes of the technology described herein, for example, it may execute the above-mentioned terminal device except for receiving and sending. All other processes or part of other processes outside the process.
  • the transceiver 1102 can be used to perform S52 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can perform all the transceiving processes performed by the terminal device described above. Or part of the sending and receiving process.
  • the processor 1101 is configured to generate at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units,
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units;
  • the time unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is greater than 1.
  • the transceiver 1102 is configured to send the at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain, and the time unit 2*i+1 And time unit 2*(i+1) is not continuous in time domain, i is 0,1,..., Any of them.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver 1102 is also used to send first signaling, the first signaling is used to indicate the SSB time domain structure, and the SSB time domain structure is used to receive the at least one SSB .
  • the communication device 1000 or the communication device 1100 can also be implemented by the structure of the communication device 1200 as shown in FIG. 12A.
  • the communication apparatus 1200 can implement the functions of the terminal equipment or network equipment mentioned above.
  • the communication apparatus 1200 may include a processor 1201.
  • the processor 1201 may be used to execute S53 in the embodiment shown in FIG. 5, and/or to support the technology described herein. Other processes, for example, all other processes or parts of other processes performed by the terminal equipment described above except for the sending and receiving process may be executed; or, the communication device 1200 is used to implement the functions of the network equipment mentioned above At this time, the processor 1201 may be used to execute S51 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein. For example, it may execute the above-mentioned network device except for receiving and sending. All other operations or part of other operations other than operations.
  • the communication device 1200 can use field-programmable gate array (FPGA), application specific integrated circuit (ASIC), system on chip (SoC), and central processor (central processor). unit, CPU), network processor (network processor, NP), digital signal processing circuit (digital signal processor, DSP), microcontroller (microcontroller unit, MCU), or programmable controller (programmable logic device, PLD) or other integrated chips, the communication device 1200 can be set in the terminal device or network device of the embodiment of the present application, so that the terminal device or network device implements the method provided in the embodiment of the present application.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • central processor central processor
  • unit CPU
  • network processor network processor
  • NP digital signal processing circuit
  • DSP digital signal processor
  • microcontroller microcontroller unit, MCU
  • PLD programmable controller
  • the communication device 1200 may include a transceiver component for communicating with other devices.
  • the transceiver component may be used to execute S52 in the embodiment shown in FIG. 5, and/or to support the functions described herein.
  • a transceiver component is a communication interface.
  • the communication interface may be a transceiver in the terminal device or network device, such as the transceiver 1102 or the transceiver 1202, and the transceiver is, for example, a terminal.
  • the communication device 1200 may further include a memory 1202, as shown in FIG. 12B, where the memory 1202 is used to store computer programs or instructions, and the processor 1201 is used to decode and execute these computer programs or instruction.
  • these computer programs or instructions may include functional programs of the aforementioned terminal devices or network devices.
  • the terminal device may realize the function of the terminal device in the method provided in the embodiment shown in FIG. 5 of the embodiment of the present application.
  • the function program of the network device is decoded and executed by the processor 1201
  • the network device can realize the function of the network device in the method provided in the embodiment shown in FIG. 5 of the embodiment of the present application.
  • the functional programs of these terminal devices or network devices are stored in a memory external to the communication device 1200.
  • the memory 1202 temporarily stores part or all of the above-mentioned functional program of the terminal device.
  • the function program of the network device is decoded and executed by the processor 1201, the memory 1202 temporarily stores part or all of the content of the function program of the network device.
  • the functional programs of these terminal devices or network devices are set in the memory 1202 stored in the communication device 1200.
  • the communication device 1200 may be set in the terminal device of the embodiment of the present application.
  • the function program of the network device is stored in the memory 1202 inside the communication device 1200, the communication device 1200 may be set in the network device of the embodiment of the present application.
  • part of the content of the functional programs of these terminal devices is stored in a memory outside the communication device 1200, and other parts of the content of the functional programs of these terminal devices are stored in the memory 1202 inside the communication device 1200.
  • part of the content of the functional programs of these network devices is stored in a memory outside the communication device 1200, and other parts of the content of the functional programs of these network devices are stored in the memory 1202 inside the communication device 1200.
  • the communication device 1000, the communication device 1100, and the communication device 1200 are presented in the form of dividing each function module corresponding to each function, or may be presented in the form of dividing each function module in an integrated manner.
  • the "module” herein may refer to an ASIC, a processor and memory that execute one or more software or firmware programs, integrated logic circuits, and/or other devices that can provide the above-mentioned functions.
  • the communication device 1000 provided by the embodiment shown in FIG. 10 may also be implemented in other forms.
  • the communication device includes a processing module and a transceiver module.
  • the processing module may be implemented by the processor 1001, and the transceiver module may be implemented by the transceiver 1002.
  • the processing module can be used to execute S53 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described in this article, for example, can execute the above-mentioned terminal device except the transceiving process. All other processes or part of other processes.
  • the transceiver module can be used to execute S52 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can execute all the transceiver processes performed by the terminal device described above or Part of the sending and receiving process.
  • the transceiver module is configured to receive at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit
  • the unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the processing module is configured to perform synchronization and/or obtain system messages according to the received at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain, and the time unit 2*i+1 And time unit 2*(i+1) is not continuous in time domain, i is 0,1,..., Any of them.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver module is further configured to receive first signaling before receiving at least one SSB, where the first signaling is used to indicate the SSB time domain structure;
  • the transceiver module is configured to receive at least one SSB in the following manner: receiving the at least one SSB according to the time domain structure of the SSB.
  • the communication device 1100 provided by the embodiment shown in FIG. 11 may also be implemented in other forms.
  • the communication device includes a processing module and a transceiver module.
  • the processing module may be implemented by the processor 1101, and the transceiver module may be implemented by the transceiver 1102.
  • the processing module can be used to execute S51 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described in this article, for example, can execute the network device described above except for the transceiving process. All other processes or part of other processes.
  • the transceiver module can be used to perform S52 in the embodiment shown in FIG. 5, and/or other processes used to support the technology described herein, for example, it can perform all the transceiver processes or processes performed by the network device described above. Part of the sending and receiving process.
  • the processing module is configured to generate at least one SSB, one of the at least one SSB includes at least one of PSS, SSS, or PBCH, and the one SSB occupies (N+M+X) time units, so
  • the time domain structure of the one SSB is: in the one SSB, the PSS occupies N time units, the SSS occupies M time units, and the PBCH occupies X time units; wherein, each time unit The unit includes Y symbols, N is an integer greater than or equal to 0, M is an integer greater than or equal to 0, X is an integer greater than or equal to 0, and N, X, and M are not all 0 at the same time, and Y is an integer greater than 1. ;
  • the transceiver module is configured to send the at least one SSB.
  • the (N+M+X) time units are not continuous in the time domain.
  • the time unit 2*i and the time unit 2*i+1 in the (N+M+X) time units are continuous in the time domain, and the time unit 2*i+1 And time unit 2*(i+1) is not continuous in time domain, i is 0,1,..., Any of them.
  • the at least one SSB is located in at least one time window, wherein the time domain structures of the SSBs located in different time windows are different.
  • X is greater than or equal to N.
  • N is greater than or equal to M.
  • the transceiver module is further configured to send first signaling, the first signaling is used to indicate the SSB time domain structure, and the SSB time domain structure is used to receive the at least one SSB.
  • the communication device 1000, the communication device 1100, and the communication device 1200 provided in the embodiments of the present application can be used to execute the method provided in the embodiment shown in FIG. 5, the technical effects that can be obtained can refer to the above method embodiments. No longer.
  • each flow and/or block in the flowchart and/or block diagram and a combination of the flow and/or block in the flowchart and/or block diagram may be implemented by computer program instructions.
  • These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated
  • a device that implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another readable storage medium. For example, the computer instructions may be passed from a website, computer, server, or data center.
  • Wired for example, coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)
  • wireless for example, infrared, wireless, microwave, etc.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more available medium integrated servers, data centers, and the like.
  • the usable media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital universal disc (DVD)), or semiconductor media (eg, solid state disk (SSD) ))Wait.

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Abstract

一种通信方法及设备，其中的一种通信方法包括：终端设备接收至少一个SSB，至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，一个SSB占用(N+M+X)个时间单元，一个SSB的时域结构为：在一个SSB中，PSS占用N个时间单元，SSS占用M个时间单元，PBCH占用X个时间单元；其中，每个时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；终端设备根据接收的至少一个SSB进行同步和/或获取系统消息。

Description

一种通信方法及设备
相关申请的交叉引用
本申请要求在2019年01月18日提交国家知识产权局、申请号为201910049720.X、申请名称为“一种通信方法及设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法及设备。
背景技术
在现有的第五代移动通信技术(the 5th generation，5G)新无线(new radio，NR)系统中，终端设备可以通过接收同步信号和PBCH块(synchronization signal and PBCH block，SSB)来实现与基站的同步，以及获取系统消息等。其中，主同步信号(primary synchronisation signal，PSS)、辅同步信号(secondary synchronisation signal，SSS)和物理广播信道(physical broadcast channel，PBCH)共同构成一个SSB。如图1所示，在时域上，1个SSB占用4个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号(symbol)，为符号0～符号3，在频域上，1个SSB占用20个资源块(resource block，RB)，也就是240个子载波，在这20个RB内，子载波编号为0～239。PSS位于符号0的中间的127个子载波上，SSS位于符号2的中间的127个子载波上。为了保护PSS和SSS，分别有不同的保护子载波被设为0，也就是保护子载波不用于承载信号，在SSS两侧分别留了8个子载波和9个子载波用于作为保护带子载波，如图1中的SSS两侧的空白区域就是保护子载波。PBCH占用符号1和符号3的全部子载波，以及占用符号2的全部子载波中除了SSS所占用的子载波之外的剩余的子载波中的一部分子载波(剩余的子载波中除了保护子载波之外的子载波)。
目前的一个SSB在频域上占用20个RB，对于只支持小于20个RB的带宽的窄带终端设备，无法检测目前的SSB。对于深度覆盖和超远覆盖场景，现有SSB的性能需要增强。
发明内容
本申请实施例提供一种通信方法及设备，用于提供既能适应宽带终端设备又能适应窄带终端设备的深度覆盖和超远覆盖需求的SSB。
第一方面，提供第一种通信方法，该方法包括：终端设备接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；所述终端设备根据接收的所述至少一个SSB进行同步和/或获取系统消息。
该方法可由第一通信装置执行，第一通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。这里以第一通信装置是终端设备为例。
在本申请实施例中，一个SSB中可以包括占用N个时间单元的PSS、占用M个时间单元的SSS、以及占用X个时间单元的PBCH，相当于，这些信号在时域上可以占用多个符号来发送，而且本申请实施例并不限制SSB的频域范围，例如SSB在频域还是可以占用20个RB，或者可以占用小于20个RB，且在占用小于20个RB时，由于PSS、SSS或PBCH中的至少一个占用的符号数较多，能够实现深度覆盖或超远覆盖，使得本申请实施例提供的SSB既能满足宽带终端设备的需求，也能满足窄带终端设备的需求。
结合第一方面，在第一方面的一种可能的实施方式中，Y＝4。
因为在现有技术中，一个SSB占用4个符号，因此取Y＝4，相当于以4个符号为一个时间单元，可以有助于与现有系统实现兼容，例如在同一个通信系统中，网络设备既可以发送现有技术中的SSB，也可以发送本申请实施例所提供的SSB，实现宽窄一体。
结合第一方面，在第一方面的一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
这里的不连续，可以是指(N+M+X)个时间单元中的任意两个时间单元在时域上均不连续，或者也可以是指(N+M+X)个时间单元中的至少两个索引相邻的时间单元在时域上不连续。通过这种使得(N+M+X)个时间单元在时域上不连续的方式，使得(N+M+X)个时间单元在时域上的空隙(也就是不连续的时域位置)还可以承载其他信号，也是有助于与现有的系统的兼容。例如对于URLLC这种低时延业务，需要随到随传，如果一个SSB在时域上占用多个连续的符号，那么会影响URLLC的时延，所以该(N+M+X)个时间单元在时域上非连续，可以降低对URLLC业务及时传输的影响。
结合第一方面，在第一方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000001
中的任一个。
可选的，所述(N+M+X)个时间单元从0开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。
可选的，所述(N+M+X)个时间单元从任意数字开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。为表述方便，时间单元0仍然可以指示所述(N+M+X)个时间单元中时域上最早的时间单元，时间单元1可以指示所述(N+M+X)个时间单元中时域上次早的时间单元，后续的可以依次指示。
通过这种使得(N+M+X)个时间单元在时域上部分不连续的方式，使得(N+M+X)个时间单元在时域上的空隙(也就是不连续的时域位置)还可以承载其他信号，也是有助于与现有系统和现有URLLC业务的兼容。
结合第一方面，在第一方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
在本申请实施例中，一个SSB位于一段时长内，这段时长可以认为是一个时间窗，一个时间窗的长度例如为5ms，或者也可以是其他取值。不同的时间窗内的SSB的时域结构不同，例如按照时间顺序，在初始的一些时间窗内的SSB可以包括SSS，或者说包括较多的SSS，而在后续的一些时间窗内，考虑到终端设备可能已经实现了同步，对于终端设备来说更需要接收的是PBCH，因此在后续的时间窗内可以减少SSS的数量，而相应增加PBCH的数量，从而提高终端设备对于PBCH的接收性能。
结合第一方面，在第一方面的一种可能的实施方式中，X大于或等于N。
因为网络设备所发送的PSS的内容始终是一样的，发送的SSS的内容也始终是一样的，终端设备可以通过多次接收PSS来增加能量，提高接收正确的几率，对于SSS来说也是同样。但是网络设备在不同的时刻发送的PBCH的内容可能是不一样的，例如网络设备在一段时间内发送的PBCH携带的是第一内容，而在下一段时间内发送的PBCH携带的内容可能变成第二内容，因此终端设备无法通过长时间接收多次PBCH来提高接收正确率，所以对于网络设备来说，可以尽量在短时间内多次发送PBCH，以提高PBCH的覆盖，提高终端设备的接收正确率。从这个角度来讲，X可以大于N，也可以等于N。
结合第一方面，在第一方面的一种可能的实施方式中，N大于或等于M。
当终端设备进行初始接入时，终端设备在检测PSS时完全是盲检测，终端设备并不知道PSS的位置，完全通过盲检测来实现检测。为了加快PSS的盲检测速度，网络设备可以在时域上配置更密集的PSS来加快终端设备盲检测PSS的速度。而终端设备在检测SSS时已经接收了PSS，相对于PSS来说，终端设备对于SSS的检测要相对容易，因此网络设备发送SSS的次数可以少于发送PSS的次数，因此N可以大于M。当然，如果考虑到进一步提升对于同步信号的覆盖，则N也可以等于M。
结合第一方面，在第一方面的一种可能的实施方式中，
在终端设备接收至少一个SSB之前，还包括：所述终端设备接收第一信令，所述第一信令用于指示SSB时域结构；
所述终端设备接收至少一个SSB，包括：所述终端设备根据所述SSB时域结构接收所述至少一个SSB。
例如SSB时域结构是网络设备配置的，那么网络设备可以向终端设备发送第一信令，终端设备在知道SSB时域结构后，可以正确接收至少一个SSB。或者，SSB时域结构也可以是通过协议规定的，在这种情况下网络设备无需向终端设备发送该SSB时域结构，终端设备也无需接收，而是直接根据协议即可确定该SSB时域结构，有助于节省信令开销。
第二方面，提供第二种通信方法，该方法包括：网络设备生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；所述网络设备发送所述至少一个SSB。
该方法可由第二通信装置执行，第二通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。这里以第二通信装置是网络设备为例。
结合第二方面，在第二方面的一种可能的实施方式中，Y＝4。
结合第二方面，在第二方面的一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
结合第二方面，在第二方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000002
中的任一个，其中，所述(N+M+X)个时间单元从0开始编号。
可选的，所述(N+M+X)个时间单元从0开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。
可选的，所述(N+M+X)个时间单元从任意数字开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。为表述方便，时间单元0仍然可以指示所述(N+M+X)个时间单元中时域上最早的时间单元，时间单元1可以指示所述(N+M+X)个时间单元中时域上次早的时间单元，后续的可以依次指示。
结合第二方面，在第二方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
结合第二方面，在第二方面的一种可能的实施方式中，X大于或等于N。
结合第二方面，在第二方面的一种可能的实施方式中，N大于或等于M。
结合第二方面，在第二方面的一种可能的实施方式中，所述方法还包括：所述网络设备发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
关于第二方面或第二方面的各种可能的实施方式所带来的技术效果，可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第三方面，提供第一种通信装置，例如该通信装置为如前所述的第一通信装置。所述通信装置用于执行上述第一方面或第一方面的任一可能的实现方式中的方法。具体地，所述通信装置可以包括用于执行第一方面或第一方面的任一可能的实现方式中的方法的模块，例如包括相互耦合的处理模块和收发模块。示例性地，所述通信装置为终端设备。其中，
所述收发模块，用于接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
所述处理模块，用于根据接收的所述至少一个SSB进行同步和/或获取系统消息。
结合第三方面，在第三方面的一种可能的实施方式中，Y＝4。
结合第三方面，在第三方面的一种可能的实施方式中，所述(N+M+X)个时间单元在 时域上不连续。
结合第三方面，在第三方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000003
中的任一个，其中，所述(N+M+X)个时间单元从0开始编号。
结合第三方面，在第三方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
结合第三方面，在第三方面的一种可能的实施方式中，X大于或等于N。
结合第三方面，在第三方面的一种可能的实施方式中，N大于或等于M。
结合第三方面，在第三方面的一种可能的实施方式中，
所述收发模块，还用于在接收至少一个SSB之前，接收第一信令，所述第一信令用于指示SSB时域结构；
所述收发模块用于通过如下方式接收至少一个SSB：根据所述SSB时域结构接收所述至少一个SSB。
关于第三方面或第三方面的各种可能的实施方式所带来的技术效果，可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第四方面，提供第二种通信装置，例如该通信装置为如前所述的第二通信装置。所述通信装置用于执行上述第二方面或第二方面的任一可能的实现方式中的方法。具体地，所述通信装置可以包括用于执行第二方面或第二方面的任一可能的实现方式中的方法的模块，例如包括相互耦合的处理模块和收发模块。示例性地，所述通信装置为网络设备。其中，
所述处理模块，用于生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
所述收发模块，用于发送所述至少一个SSB。
结合第四方面，在第四方面的一种可能的实施方式中，Y＝4。
结合第四方面，在第四方面的一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
结合第四方面，在第四方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000004
中的任一个，其中，所述(N+M+X)个时间单元从0开始编号。
可选的，所述(N+M+X)个时间单元从0开始编号。进一步，所述(N+M+X)个时 间单元的编号按照时域先后依次递增。
可选的，所述(N+M+X)个时间单元从任意数字开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。为表述方便，时间单元0仍然可以指示所述(N+M+X)个时间单元中时域上最早的时间单元，时间单元1可以指示所述(N+M+X)个时间单元中时域上次早的时间单元，后续的可以依次指示。
结合第四方面，在第四方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
结合第四方面，在第四方面的一种可能的实施方式中，X大于或等于N。
结合第四方面，在第四方面的一种可能的实施方式中，N大于或等于M。
结合第四方面，在第四方面的一种可能的实施方式中，所述收发模块，还用于发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
关于第四方面或第四方面的各种可能的实施方式所带来的技术效果，可以参考对第二方面或第二方面的各种可能的实施方式的技术效果的介绍。
第五方面，提供第三种通信装置，该通信装置例如为如前所述的第一通信装置。该通信装置包括处理器和收发器，用于实现上述第一方面或第一方面的各种可能的设计所描述的方法。示例性地，所述通信装置为设置在通信设备中的芯片。示例性的，所述通信设备为终端设备。其中，收发器例如通过通信设备中的天线、馈线和编解码器等实现，或者，如果所述通信装置为设置在通信设备中的芯片，那么收发器例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。其中，
所述收发器，用于接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
所述处理器，用于根据接收的所述至少一个SSB进行同步和/或获取系统消息。
结合第五方面，在第五方面的一种可能的实施方式中，Y＝4。
结合第五方面，在第五方面的一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
结合第五方面，在第五方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000005
中的任一个，其中，所述(N+M+X)个时间单元从0开始编号。
可选的，所述(N+M+X)个时间单元从0开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。
可选的，所述(N+M+X)个时间单元从任意数字开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。为表述方便，时间单元0仍然可以指示所述(N+M+X)个时间单元中时域上最早的时间单元，时间单元1可以指示所述(N+M+X)个时间单元中时域上次早的时间单元，后续的可以依次指示。
结合第五方面，在第五方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
结合第五方面，在第五方面的一种可能的实施方式中，X大于或等于N。
结合第五方面，在第五方面的一种可能的实施方式中，N大于或等于M。
结合第五方面，在第五方面的一种可能的实施方式中，
所述收发器，还用于在接收至少一个SSB之前，接收第一信令，所述第一信令用于指示SSB时域结构；
所述收发器用于通过如下方式接收至少一个SSB：根据所述SSB时域结构接收所述至少一个SSB。
关于第五方面或第五方面的各种可能的实施方式所带来的技术效果，可以参考对第一方面或第一方面的各种可能的实施方式的技术效果的介绍。
第六方面，提供第四种通信装置，该通信装置例如为如前所述的第二通信装置。该通信装置包括处理器和收发器，用于实现上述第二方面或第二方面的各种可能的设计所描述的方法。示例性地，所述通信装置为设置在通信设备中的芯片。示例性的，所述通信设备为网络设备。其中，收发器例如通过通信设备中的天线、馈线和编解码器等实现，或者，如果所述通信装置为设置在通信设备中的芯片，那么收发器例如为芯片中的通信接口，该通信接口与通信设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。其中，
所述处理器，用于生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
所述收发器，用于发送所述至少一个SSB。
结合第六方面，在第六方面的一种可能的实施方式中，Y＝4。
结合第六方面，在第六方面的一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
结合第六方面，在第六方面的一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000006
中的任一个，其中，所述(N+M+X)个时间单元从0开始编号。
可选的，所述(N+M+X)个时间单元从0开始编号。进一步，所述(N+M+X)个时 间单元的编号按照时域先后依次递增。
可选的，所述(N+M+X)个时间单元从任意数字开始编号。进一步，所述(N+M+X)个时间单元的编号按照时域先后依次递增。为表述方便，时间单元0仍然可以指示所述(N+M+X)个时间单元中时域上最早的时间单元，时间单元1可以指示所述(N+M+X)个时间单元中时域上次早的时间单元，后续的可以依次指示。
结合第六方面，在第六方面的一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
结合第六方面，在第六方面的一种可能的实施方式中，X大于或等于N。
结合第六方面，在第六方面的一种可能的实施方式中，N大于或等于M。
结合第六方面，在第六方面的一种可能的实施方式中，所述收发器，还用于发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
关于第六方面或第六方面的各种可能的实施方式所带来的技术效果，可以参考对第二方面或第二方面的各种可能的实施方式的技术效果的介绍。
第七方面，提供第五种通信装置。该通信装置可以为上述方法设计中的第一通信装置。示例性地，所述通信装置为设置在终端设备中的芯片。该通信装置包括：存储器，用于存储计算机可执行程序代码；以及处理器，处理器与存储器耦合。其中存储器所存储的程序代码包括指令，当处理器执行所述指令时，使第五种通信装置执行上述第一方面或第一方面的任意一种可能的实施方式中的方法。
其中，第五种通信装置还可以包括通信接口，该通信接口可以是终端设备中的收发器，例如通过所述通信装置中的天线、馈线和编解码器等实现，或者，如果第五种通信装置为设置在终端设备中的芯片，则通信接口可以是该芯片的输入/输出接口，例如输入/输出管脚等。
第八方面，提供第六种通信装置。该通信装置可以为上述方法设计中的第二通信装置。示例性地，所述通信装置为设置在网络设备中的芯片。该通信装置包括：存储器，用于存储计算机可执行程序代码；以及处理器，处理器与存储器耦合。其中存储器所存储的程序代码包括指令，当处理器执行所述指令时，使第六种通信装置执行上述第二方面或第二方面的任意一种可能的实施方式中的方法。
其中，第六种通信装置还可以包括通信接口，该通信接口可以是网络设备中的收发器，例如通过所述通信装置中的天线、馈线和编解码器等实现，或者，如果第六种通信装置为设置在网络设备中的芯片，则通信接口可以是该芯片的输入/输出接口，例如输入/输出管脚等。
第九方面，提供一种通信系统，该通信系统可以包括第三方面所述的第一种通信装置、第五方面所述的第三种通信装置或第七方面所述的第五种通信装置，以及包括第四方面所述的第二种通信装置、第六方面所述的第四种通信装置或第八方面所述的第六种通信装置。
第十方面，提供一种计算机存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意一种可能的设计中所述的方法。
第十一方面，提供一种计算机存储介质，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面的任意一种可能的设计中所述的方法。
第十二方面，提供一种包含指令的计算机程序产品，所述计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任意一种可能的设计中所述的方法。
第十三方面，提供一种包含指令的计算机程序产品，所述计算机程序产品中存储有指令，当其在计算机上运行时，使得计算机执行上述第二方面或第二方面的任意一种可能的设计中所述的方法。
在本申请实施例中，一个SSB中由于PSS、SSS或PBCH中的至少一个占用的符号数较多，能够实现深度覆盖或超远覆盖，使得本申请实施例提供的SSB既能满足宽带终端设备的需求，也能满足窄带终端设备的需求。
附图说明
图1为现有的一个SSB的示意图；
图2为SS burst set的示意图；
图3为本申请实施例的一种应用场景示意图；
图4为本申请实施例的另一种应用场景示意图；
图5为本申请实施例提供的一种通信方法的流程图；
图6A～图6C为本申请实施例提供的SSB的几种不同的时域结构的示意图；
图7A～图7B为本申请实施例提供的SSB包括的(N+M+X)个时间单元在时域上不连续的示意图；
图8为本申请实施例提供的SSB包括的(N+M+X)个时间单元在时域上部分不连续的示意图；
图9为本申请实施例提供的至少一个SSB位于至少一个时间窗内的示意图；
图10为本申请实施例提供的能够实现终端设备的功能的通信装置的一种示意图；
图11为本申请实施例提供的能够实现网络设备的功能的通信装置的一种示意图；
图12A～图12B为本申请实施例提供的一种通信装置的两种示意图。
具体实施方式
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
1)终端设备，包括向用户提供语音和/或数据连通性的设备，例如可以包括具有无线连接功能的手持式设备、或连接到无线调制解调器的处理设备。该终端设备可以经无线接入网(radio access network，RAN)与核心网进行通信，与RAN交换语音和/或数据。该终端设备可以包括用户设备(user equipment，UE)、无线终端设备、移动终端设备、设备到设备通信(device-to-device，D2D)终端设备、V2X终端设备、机器到机器/机器类通信(machine-to-machine/machine-type communications，M2M/MTC)终端设备、物联网(internet  of things，IoT)终端设备、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、远程站(remote station)、接入点(access point，AP)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、或用户装备(user device)等。例如，可以包括移动电话(或称为“蜂窝”电话)，具有移动终端设备的计算机，便携式、袖珍式、手持式、计算机内置的移动装置等。例如，个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。还包括受限设备，例如功耗较低的设备，或存储能力有限的设备，或计算能力有限的设备等。例如包括条码、射频识别(radio frequency identification，RFID)、传感器、全球定位系统(global positioning system，GPS)、激光扫描器等信息传感设备。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备或智能穿戴式设备等，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能头盔、智能首饰等。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。
本申请实施例可能涉及两种终端设备：宽带终端设备和窄带终端设备。其中，宽带终端设备和窄带终端设备需满足的条件，包括但不限于如下几种：
①在本申请实施例中，窄带终端设备的最大带宽能力小于或等于宽带终端设备的最小带宽能力。以窄带终端设备是窄带物联网(narrow band internet of things，NB-IoT)终端设备、宽带终端设备是长期演进(long term evolution，LTE)终端设备为例。NB-IoT终端设备的数据传输带宽为1个RB，即180kHz或200kHz(包括保护频带)，因为LTE系统下的PSS/SSS所占的频率资源为6个RB，即1.08MHz或1.44MHz(包括保护频带)，所以宽带终端设备的最小带宽能力可以认为是不小于1.08MHz的，在这种情况下，可以认为窄带终端设备的最大带宽能力小于或等于宽带终端设备的最小带宽能力。又例如，窄带终端设备是NB-IoT终端设备、宽带终端设备为NR终端设备，基于NR系统SSB的设计，NR终端设备的最小带宽能力可以认为是20个RB，其中每个RB包括12个子载波，在NR系统中，子载波间隔与NR系统部署的频带有关，不是固定值，以最小的子载波间隔15kHz为例，最小带宽能力可以认为是大于或等于20*12*15＝3.6MHz，依然可以认为窄带终端设备的最大带宽能力小于或等于宽带终端设备的最小带宽能力。
2○在本申请实施例中，也可以认为窄带终端设备的最小带宽能力小于宽带终端设备的最小带宽能力。如果终端设备与网络设备之间建立数据传输通道，则一般而言，终端设备需要先接收网络设备发送的同步信道以及广播信道，因此可以认为网络设备发送的同步信 道以及广播信道所对应的带宽为终端设备所需要具备的最小带宽能力。
基于①和②，窄带终端设备也可以认为是带宽受限(bandwidth limited，BL)终端设备，需要说明的是，BL终端设备也可以具有除①和②的其他带宽特征，不作具体限定。
③在本申请实施例中，窄带终端设备也可以认为需要通过覆盖增强(coverage enhancement，CE)技术与网络设备保持正常的数据通信，而宽带终端设备即使不通过CE技术，也可以与网络设备保持正常的数据通信。CE技术包括但不限于数据重复传输或功率提升等技术。或者，如果宽带终端设备和窄带终端设备在某些场景下，都需要通过数据重复传输，和网络设备保持正常的数据通信，那么，窄带终端设备与网络设备保持数据通信，所需要的最大重复次数，要小于宽带终端设备与网络设备保持数据通信所需要的最大重复次数。
④在本申请实施例中，窄带终端设备也可以认为是低功率广覆盖接入(low power wide coverage access，LPWA)终端设备，宽带终端设备可以认为是增强型移动宽带(enhanced mobile broadband，eMBB)终端设备或者超可靠低延时通信(ultra-reliability low-latency communication，URLLC)终端设备。
另外在本申请实施例中，同一个终端设备可以既具有窄带能力也具有宽带能力，也就是，该终端设备可以既作为宽带终端设备也作为窄带终端设备，或者说，该终端设备同时具有non-CE和CE能力，该终端设备既可以不依赖CE技术与接入网设备保持正常通信，也可以依赖CE技术与接入网设备保持正常通信。或者，可能一个终端设备只具有窄带能力而不具有宽带能力，则该终端设备只是窄带终端设备而不是宽带终端设备等，即该终端设备只能依赖CE技术与接入网设备保持正常通信。这两种终端设备都可以适用本申请实施例提供的技术方案。
2)网络设备，例如包括接入网(access network，AN)设备，例如基站(例如，接入点)，可以是指接入网中在空口通过一个或多个小区与无线终端设备通信的设备，或者例如，一种V2X技术中的网络设备为路侧单元(road side unit，RSU)。基站可用于将收到的空中帧与网际协议(IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括IP网络。RSU可以是支持V2X应用的固定基础设施实体，可以与支持V2X应用的其他实体交换消息。网络设备还可协调对空口的属性管理。例如，网络设备可以包括LTE系统或高级长期演进(long term evolution-advanced，LTE-A)中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，或者也可以包括5G NR系统中的下一代节点B(next generation node B，gNB)或者也可以包括云接入网(cloud radio access network，Cloud RAN)系统中的集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，本申请实施例并不限定。
3)本申请实施例中，提到的小区可以是基站对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站。这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
LTE系统或NR系统中的载波上可以同时有多个小区同频工作，在某些特殊场景下，可以认为载波与小区的概念等同。例如在载波聚合(carrier aggregation，CA)场景下，当为终端设备配置辅载波时，会同时携带辅载波的载波索引和工作在该辅载波的辅小区的小区标识(cell identify，Cell ID)，在这种情况下，可以认为载波与小区的概念等同，例如终 端设备接入一个载波和接入一个小区是等同的。对于双连接(dual connectivity，DC)场景，也有类似说明。本申请实施例中将以小区的概念来介绍。在NR系统中，如果一个小区或一个载波上只有一个激活的带宽部分(bandwidth part，BWP)，则也可以认为小区与BWP的概念等同。
4)本申请实施例中的术语“系统”和“网络”可被互换使用。“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B的情况，其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a,b,或c中的至少一项(个)，可以表示：a,b,c,a-b,a-c,b-c,或a-b-c，其中a,b,c可以是单个，也可以是多个。
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的顺序、时序、优先级或者重要程度。例如，第一同步信号和第二同步信号，只是为了区分不同的同步信号，而并不是表示这两个同步信号的内容、优先级、发送顺序或者重要程度等的不同。
如上介绍了本申请实施例涉及的一些概念，下面介绍本申请实施例的技术特征。
5G NR，是基于OFDM的全新空口设计的全球性5G标准，也是下一代非常重要的蜂窝移动技术基础。5G技术的业务非常多样，可以面向eMBB、URLLC以及大规模机器通信(massive machine-type communication，mMTC)。
NR系统业务的多样化，使得NR系统的设计可以满足不同带宽能力的终端设备的接入需求。例如，eMBB终端设备可以通过获取NR系统的宽带信息，接入NR系统，而部分mMTC终端设备由于设计成本或低功耗等方面的考虑，可以通过获取NR系统的窄带信息，接入NR系统；又例如，即使针对同一种业务类型，例如mMTC，也有不同的业务速率要求，例如对于抄电表、跟踪追查或按需支付等用例，终端设备对数据传输速率要求不高，但一般要求具有深度覆盖，一般可以通过窄带接入；另一方面，例如监控视频回传等，对数据传输速率要求比较高，因此可以看做是具有中高端能力的终端设备，一般可以通过宽带接入。
另一方面，随着NR系统业务的多样化，NR系统下的终端设备的能力也呈现多样化，可以在不同系统带宽下工作。
在现有的NR系统中，终端设备可以通过接收SSB来实现与基站的同步，以及获取系统消息等。其中，PSS、SSS和PBCH共同构成一个SSB。如图1所示，在时域上，1个SSB占用4个OFDM符号，为符号0～符号3，在频域上，1个SSB占用20个RB，也就是240个子载波，在这20个RB内，子载波编号为0～239。PSS位于符号0的中间的127个子载波上，SSS位于符号2的中间的127个子载波上。为了保护PSS和SSS，分别有不同的保护子载波的能量被设为0，也就是有保护子载波不用于承载信号，在SSS两侧分别留了8个子载波和9个子载波用于作为保护带子载波，如图1中的SSS上下两侧的空白区域就是保护子载波。PBCH占用符号1和符号3的全部子载波，以及占用符号2的全部子载波中除了SSS所占用的子载波之外的剩余的子载波中的一部分子载波(剩余的子载波中除了保护子载波之外的子载波)。
一个同步突发集(synchronization signal burst set，SS burst set)指的是一次波束扫描(beam sweep)内包含的SSB的集合。SS burst set的周期，相当于一个特定波束对应的SSB 的周期，可以被配置为5ms(毫秒)、10ms、20ms、40ms、80ms或160ms等。其中，20ms是默认周期，即终端设备进行初始小区搜索时假设的周期。目前，一个SS burst set周期内最多有L max个SSB，其中，L max＝4或8或64。当载频小于等于3GHz时，Lmax＝4，也就是一个SS burst set周期内最多有4个SSB，最多可以支持4个波束扫描。其中，每个SS burst set总是位于5ms的时间间隔内，为1个10ms的帧(frame)的前半部分或后半部分。对于SS burst set的示意可参考图2，图2以SS burst set的周期是20ms、且以一个SS burst set包括L个SSB为例。
未来的终端设备具有多种带宽能力，例如窄带能力和宽带能力，也面临更多样化的应用场景和业务场景。对于小于20RB带宽的窄带终端设备，是无法检测目前的SSB的。对于深度覆盖和超远覆盖场景，现有SSB的性能需要增强。
鉴于此，提供本申请实施例的技术方案。本申请实施例提供了一种新的SSB，这种SSB可以包括占用N个时间单元的PSS、占用M个时间单元的SSS、以及占用X个时间单元的PBCH，相当于，这些信号在时域上可以占用多个符号来发送，而且本申请实施例并不限制SSB的频域范围，例如SSB在频域还是可以占用20个RB，或者可以占用小于20个RB，且在占用小于20个RB时，由于PSS、SSS或PBCH中的至少一个占用的符号数较多，能够实现深度覆盖或超远覆盖，使得本申请实施例提供的SSB既能满足宽带终端设备的需求，也能满足窄带终端设备的需求，能够适用于深度覆盖或超远覆盖等场景，以及适用于IoT业务。
本申请实施例提供的技术方案可以用于无线通信系统，包括4.5G或5G无线通信系统，以及基于LTE或者NR的进一步演进系统，以及未来的无线通信系统。
本申请实施例的第一种应用场景可以是，能够同时服务不同带宽能力的终端设备的无线通信系统。例如可以同时服务mMTC终端设备和eMBB终端设备的LTE系统或NR系统。
请参考图3，为本申请实施例所应用的一种网络架构，图3所示的网络架构适用于本申请实施例的第一种应用场景。
图3中包括网络设备和两个终端设备，分别为终端设备1和终端设备2，这两个终端设备均可以与网络设备连接，例如终端设备1为支持宽带能力的终端设备，例如为现有版本15的NR终端设备，终端设备2为支持窄带能力的终端设备，例如为未来版本的窄带mMTC终端设备。当然图3中的终端设备的数量只是举例，在实际应用中，网络设备可以为多个终端设备提供服务。
本申请实施例的第二种应用场景可以是，只能服务于窄带能力的终端设备的无线通信系统，例如只服务于NB-IoT终端设备的LTE系统或NR系统。
请参考图4，为本申请实施例所应用的另一种网络架构，图4所示的网络架构适用于本申请实施例的第二种应用场景。
图4中包括网络设备和一个终端设备，该终端设备可以与网络设备连接，例如该终端设备为支持窄带能力的终端设备，例如为NB-IoT终端设备。当然图4中的终端设备的数量只是举例，在实际应用中，网络设备可以为多个终端设备提供服务。
图3或图4中的网络设备例如为接入网设备，例如基站。其中，网络设备在不同的系统对应不同的设备，例如在第四代移动通信技术(the 4 th generation，4G)系统中可以对应eNB,在5G系统中对应5G中的网络设备，例如gNB。
接下来结合附图介绍本申请实施例提供的技术方案。
在具体介绍实施例之前，先介绍一下现有的NR系统的帧结构(frame structure)，以便于理解本申请实施例的方案，但这并不意味着本申请实施例仅适用于NR系统。在NR系统中，每个帧由10个1ms长度的子帧(subframe)组成，一个子帧包括
Figure PCTCN2020072081-appb-000007
个符号，其中，
Figure PCTCN2020072081-appb-000008
表示在子载波间隔μ下，一个子帧包括的符号数，
Figure PCTCN2020072081-appb-000009
表示一个时隙包括的符号数，
Figure PCTCN2020072081-appb-000010
表示在子载波间隔μ下，一个子帧包括的时隙(slot)数。每个帧分成2个等大小的半帧(half-frame)，其中的半帧0包含子帧0～4，其中的半帧1包含子帧5～9。对于子载波间隔的配置μ，一个子帧包含
Figure PCTCN2020072081-appb-000011
个时隙，一个子帧内的时隙编号为
Figure PCTCN2020072081-appb-000012
一个帧包含
Figure PCTCN2020072081-appb-000013
个时隙，一个帧内的时隙编号为
Figure PCTCN2020072081-appb-000014
和
Figure PCTCN2020072081-appb-000015
的数值见表1(普通循环前缀(normal cyclic prefix))和表2(扩展循环前缀(extended cyclic prefix))。当
Figure PCTCN2020072081-appb-000016
时，一个时隙包含的符号分别记为符号0，符号1，…，符号12，符号13。
表1
Figure PCTCN2020072081-appb-000017
表2
Figure PCTCN2020072081-appb-000018
本申请实施例提供一种通信方法，请参见图5，为该方法的流程图。在下文的介绍过程中，以该方法应用于图3或图4所示的网络架构为例。另外，该方法可由两个通信装置执行，这两个通信装置例如为第一通信装置和第二通信装置。其中，第一通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，或者第一通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。第二通信装置可以是网络设备或能够支持网络设备实现该方法所需的功能的通信装置，或者第二通信装置可以是终端设备或能够支持终端设备实现该方法所需的功能的通信装置，当然还可以是其他通信装置，例如芯片系统。且对于第一通信装置和第二通信装置的实现方式均不做限制，例如第一通信装置可以是网络设备，第二通信装置是终端设备，或者第一通信装置是网络设备，第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置，或者第一通信装置是能够支持网络设备实现该方法所需的功能的通信装置，第二通信装置是能够支持终端设备实现该方法所需的功能的通信装置， 等等。其中，网络设备例如为基站。
为了便于介绍，在下文中，以该方法由网络设备和终端设备执行为例，也就是，以第一通信装置是网络设备、第二通信装置是终端设备为例。如果将本实施例应用在图3所示的网络架构，则下文中所述的网络设备可以是图3所示的网络架构中的网络设备，下文中所述的终端设备可以是图3所示的网络架构中的终端设备1或终端设备2，如果将本实施例应用在图4所示的网络架构，则下文中所述的网络设备可以是图4所示的网络架构中的网络设备，下文中所述的终端设备可以是图4所示的网络架构中的终端设备。需注意的是，本申请实施例只是以通过网络设备和终端设备执行为例，并不限制于这种场景，例如还可能通过终端设备和终端设备来执行，如果是这种情况，则下文中的网络设备可替换为第一终端设备，下文中的终端设备可替换为第二终端设备，第一终端设备可以是既支持宽带能力又支持窄带能力的终端设备，或者是支持窄带能力的终端设备，第二终端设备可以是既支持宽带能力又支持窄带能力的终端设备，或者是支持窄带能力的终端设备。
S51、网络设备生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数。其中，所述一个SSB可以为所述至少一个SSB中的任一SSB，并不限定于其中的特定一个。
需要说明的是，PSS和SSS可以分别称为第一SS和第二SS，本发明实施例对名称不做限制。
在本申请实施例中，一个SSB可以包括PSS，SSS和PBCH中的至少一种。例如对于一个SSB来说，N为正整数，M和X为0，则该SSB只包括PSS；或者对于一个SSB来说，N和X为0，M为正整数，则该SSB只包括SSS；或者对于一个SSB来说，X为正整数，N和M为0，则该SSB只包括PBCH；或者对于一个SSB来说，N和X为正整数，M为0，则该SSB只包括PSS和PBCH；或者对于一个SSB来说，N和M为正整数，X为0，则该SSB只包括PSS和SSS；或者对于一个SSB来说，N、M和X均为正整数，则该SSB包括PSS、SSS和PBCH，等等。网络设备生成的至少一个SSB，可能至少一个SSB中的每个SSB都包含相同的内容，例如至少一个SSB中的每个SSB都只包括PSS和PBCH，或者至少一个SSB中的每个SSB都包括PSS、SSS和PBCH；或者，至少一个SSB中的不同的SSB包含的内容不同，例如至少一个SSB中有一个SSB只包括PBCH，至少一个SSB中除了该SSB之外还有另一个SSB只包括PSS和PBCH。
在S51中，只介绍了一个SSB的时域结构，该SSB满足，PSS占用N个时间单元，SSS占用M个时间单元，PBCH占用X个时间单元，实际上对于至少一个SSB来说，可以是其中的每个SSB都满足这种时域结构。只是，如果至少一个SSB的数量大于1，则至少一个SSB中，不同的SSB包括的PSS所占用的时间单元的数量可以相同，也可以不同，也就是说，对于至少一个SSB中的不同的SSB来说，对应的N的取值可以是相同的，也可以是不同的。例如至少一个SSB包括第一SSB和第二SSB，第一SSB包括的PSS所占用的时间单元的数量是1，也就是对于第一SSB来说N＝1，第二SSB包括的PSS所占用的时间单元的数量是1，也就是对于第二SSB来说N＝1，此时这两个SSB对应的N的取 值是相同的；或者，至少一个SSB包括第一SSB和第二SSB，第一SSB包括的PSS所占用的时间单元的数量是1，也就是对于第一SSB来说N＝1，第二SSB包括的PSS所占用的时间单元的数量是2，也就是对于第二SSB来说N＝2，此时这两个SSB对应的N的取值是不同的。
对于SSS也是同样，不同的SSB包括的SSS所占用的时间单元的数量可以相同，也可以不同，也就是说，对于至少一个SSB中的不同的SSB来说，对应的M的取值可以是相同的，也可以是不同的。
同理，PBCH也一样，不同的SSB包括的PBCH所占用的时间单元的数量可以相同，也可以不同，也就是说，对于至少一个SSB中的不同的SSB来说，对应的X的取值可以是相同的，也可以是不同的。
且不同的SSB中，N、M、X的取值不会互相影响，例如对于至少一个SSB中的两个SSB，可能只是对应的N的取值不同，而对应的M和X的取值都分别相同，或者只是对应的M的取值不同，而对应的N和X的取值都分别相同，或者只是对应的X的取值不同，而对应的M和N的取值都分别相同，或者是对应的N和M的取值都分别不同，而对应的X的取值相同，或者是对应的N和X的取值都分别不同，而对应的M的取值相同，或者是对应的M和X的取值都分别不同，而对应的N的取值相同，或者是对应的N、M和X的取值都分别相同，或者是对应的N、M和X的取值都分别不同。
对于至少一个SSB中的每个SSB所对应的N、M和X的取值，可以由网络设备配置，或者通过协议规定并在网络设备和终端设备中存储协议规定，具体的不做限制。
作为一种SSB的实现方式，对于一个SSB来说，N可以大于或等于M。当终端设备进行初始接入时，终端设备在检测PSS时完全是盲检测，终端设备并不知道PSS的位置，完全通过盲检测来实现检测。为了加快PSS的盲检测速度，网络设备可以在时域上配置更密集的PSS来加快终端设备盲检测PSS的速度。而终端设备在检测SSS时已经接收了PSS，相对于PSS来说，终端设备对于SSS的检测要相对容易，因此网络设备发送SSS的次数可以少于发送PSS的次数，因此N可以大于M。当然，如果考虑到进一步提升对于同步信号的覆盖，则N也可以等于M。
作为一种SSB的实现方式，对于一个SSB来说，X可以大于或等于N。因为网络设备所发送的PSS的内容始终是一样的，发送的SSS的内容也始终是一样的，终端设备可以通过多次接收PSS来增加能量，提高接收正确的几率，对于SSS来说也是同样。但是网络设备在不同的时刻发送的PBCH的内容可能是不一样的，例如网络设备在一段时间内发送的PBCH携带的是第一内容，而在下一段时间内发送的PBCH携带的内容可能变成第二内容，因此终端设备无法通过长时间接收多次PBCH来提高接收正确率，所以对于网络设备来说，可以尽量在短时间内多次发送PBCH，以提高PBCH的覆盖，提高终端设备的接收正确率。从这个角度来讲，X可以大于N。当然X也可以等于N，或者出于其他的一些考虑，X也可以小于N。
例如参考图6A，是一个SSB的示意。在该SSB中，PSS占用4个时间单元，SSS占用2个时间单元，PBCH占用4个时间单元，也就是说，该SSB是以N大于M、X等于N为例。
或者，请参考图6B，是另一个SSB的示意。在该SSB中，PSS占用2个时间单元，SSS占用0个时间单元，也就是不包括SSS，PBCH占用2个时间单元。也就是说，该SSB 是以N大于M、X等于N为例。
或者，请参考图6C，是又一个SSB的示意。在该SSB中，PSS占用2个时间单元，SSS占用0个时间单元，也就是不包括SSS，PBCH占用2个时间单元。也就是说，该SSB是以N大于M、X等于N为例。图6B和图6C的区别，是图6B中的PSS所在的时隙和PBCH所在的时隙相邻，也就是连续，而图6C中的PSS所在的时隙和图6C中的PBCH所在的时隙不相邻，也就是不连续。
图6A～图6C中，较粗的竖线表示时隙的分界线。
在本申请实施例中，N个时间单元、M个时间单元和X个时间单元，共为(N+M+X)个时间单元。该(N+M+X)个时间单元中的每个时间单元只承载一种信号。该(N+M+X)个时间单元在时域上可以是不重叠的，如图6A，图6B，图6C，图7A和图7B所示。这种时域不重叠的结构更适合于窄带终端设备，因为该(N+M+X)个时间单元可以位于相同的带宽。当然，该(N+M+X)个时间单元在时域上也可以部分重叠或完全重叠。例如，该(N+M+X)个时间单元中的至少2个时间单元在时域上重叠，在频域上不重叠，即该至少2个时间单元频分复用。例如，N个时间单元在时域上不重叠，M个时间单元在时域上不重叠，但是该N个时间单元和该M个时间单元在时域上部分重叠或完全重叠，另外，该X个时间单元分别和该N个时间单元和该M个时间单元都不重叠。这种时域部分重叠或完全重叠的方案，可以在较短时间内传输SSB，有利于网络设备关断无信号传输的符号，进而节能。
一个SSB中的每个时间单元在时域上可以是连续的Y个符号或者部分不连续的Y个符号或者完全不连续的Y个符号，本申请实施例主要以一个时间单元包括的Y个符号在时域连续为例。例如，Y可以等于4，也就是说，一个SSB中的每个时间单元都由4个符号构成。那么对于至少一个SSB中的一个SSB来说，PSS占用4*N个符号，SSS占用4*M个符号，BCH占用4*X个符号。例如，一个SSB的一个时间单元可以位于一个时隙中的符号2，符号3，符号4和符号5，或者，位于一个时隙中的符号8，符号9，符号10和符号11，或者，位于一个时隙中的符号4、符号5、符号6和符号7。因为在现有技术中，一个SSB占用4个符号(可参考图1)，因此取Y＝4，相当于以4个符号为一个时间单元，可以有助于与现有系统实现兼容，例如在同一个通信系统中，网络设备既可以发送现有技术中的SSB，也可以发送本申请实施例所提供的SSB，实现宽窄一体。
对于Y的取值，可以由网络设备确定，或者通过协议规定。
本申请实施例中(N+M+X)个时间单元的编号，或者，(N+M+X)个时间单元的序列号(或者称为索引(index))可以为(0,1,…,N+M+X-1)。例如一个SSB对应的N+M+X＝4，该4个时间单元按照时域顺序，分别称为时间单元0、时间单元1、时间单元2和时间单元3。另外需注意的是，本文中在对符号、时隙或时间单元等时域上的单元进行编号时，都是从0开始，例如第一个符号记为符号0，或第一个时间单元记为时间单元0等，但在实际应用中也可以从1开始编号，例如第一个符号记为符号1，或第一个时间单元记为时间单元1等，本文只是以从0开始编号为例进行介绍，本申请实施例的技术方案同样可以涵盖从1开始编号或从其他数值开始编号的方式，例如，在对(N+M+X)个时间单元进行编号时可以从任意数值开始编号，但是时间单元0都是指示(N+M+X)个时间单元中在时域上最早的时间单元或者起始时间单元，(N+M+X)个时间单元中除了时间单元0之外的后续的时间单元的编号按照时域顺序依次递增。
作为一种可选的实施方式，(N+M+X)个时间单元在时域上非连续(或者说不连续)。在一种可能的实现中，所述“不连续”是指(N+M+X)个时间单元中的任意两个时间单元在时域上均不连续。在另一种可能的实现中，所述“不连续”是指(N+M+X)个时间单元中至少两个编号(或者索引)相邻的时间单元在时域上是不连续的。再一种可能的实现中，所述“不连续”可以指(N+M+X)个时间单元中存在至少一个时间单元，其包含的Y个符号在时域上是不连续的。
例如，一个SSB包括4个时间单元，按照时域的先后顺序，分别为时间单元0、时间单元1、时间单元2和时间单元3，其中，时间单元0和时间单元1在时域上不连续，时间单元1和时间单元2在时域上不连续，时间单元2和时间单元3在时域上不连续。或者，时间单元0和时间单元1在时域上不连续，时间单元1和时间单元2在时域上连续，时间单元2和时间单元3在时域上连续。通过这种使得(N+M+X)个时间单元在时域上不连续的方式，使得(N+M+X)个时间单元在时域上的空隙(也就是不连续的时域位置)还可以承载其他信号，也是有助于与现有的系统的兼容。对于URLLC这种低时延业务，需要随到随传，如果一个SSB在时域上占用多个连续的符号，那么会影响URLLC的时延，所以该(N+M+X)个时间单元在时域上非连续，可以降低对URLLC业务及时传输的影响。
可参考图6A，为一个SSB的示意，该SSB是以X等于N、N大于M为例。在该SSB中，PSS占用4个时间单元，SSS占用2个时间单元，PBCH占用4个时间单元。例如，PSS位于第一和第二时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11，SSS位于第三时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11，PBCH位于第四时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11。
可参考图6B，为一个SSB的示意，该SSB是以X等于N、M等于0为例。在该SSB中，PSS占用2个时间单元，PBCH占用2个时间单元。例如，PSS位于一个时隙中的符号2、符号3、符号4，符号5，符号8、符号9、符号10和符号11，PBCH位于下一个时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11。
可参考图6C，为一个SSB的示意，该SSB是以X等于N、M等于0为例。在该SSB中，PSS占用2个时间单元，PBCH占用2个时间单元。例如，PSS位于时隙n的符号2、符号3、符号4，符号5，符号8、符号9、符号10和符号11，PBCH位于时隙n+2中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11，其中，时隙n+2和时隙n中间隔了一个时隙。
可参考图7A，为一个SSB的示意，该SSB是以X大于N、N等于M为例。在该SSB中，PSS占用1个时间单元，SSS占用1个时间单元，PBCH占用2个时间单元。例如，PSS位于一个时隙中的符号2、符号3、符号4和符号5，SSS位于同一个时隙中的符号8、符号9、符号10和符号11，PBCH位于下一个时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11。
或者，请参考图7B，为另一个SSB的示意，该SSB是以X＝N＝M为例。在该SSB中，PSS占用2个时间单元，SSS占用2个时间单元，PBCH占用2个时间单元。例如，PSS位于一个时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11，SSS位于下一个时隙中的符号2、符号3、符号4、符号5、符号8、符号9、符号10和符号11，PBCH位于再下一个时隙中的符号2、符号3、符号4、符号5、符号8、符号9、 符号10和符号11。
从图6A、图6B、图6C、图7A或图7B中可以看到，一个SSB所包括的(N+M+X)个时间单元在时域上都是不连续的。该5个图中的所示SSB结构可以很好兼容子载波间隔为15kHz或30kHz的现有NR系统，实现宽窄一体，且降低对URLLC的时延影响。
作为另一种可选的实施方式，(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域上不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000019
中的任一个，其中
Figure PCTCN2020072081-appb-000020
表示向下取整。例如，一个SSB包括4个时间单元，分别为时间单元0、时间单元1、时间单元2和时间单元3，那么按照这种规则可以确定，时间单元0和时间单元1在时域上连续(连续，也可以认为是相邻，在本申请实施例中，在时域上相邻和在时域上连续，可以认为是同一概念)，时间单元2和3在时域上连续，但时间单元1和时间单元2在时域上不连续。也就是说在这种规则下，一个SSB所包括的(N+M+X)个时间单元中，从时间单元0开始，每相邻的两个索引所对应的两个时间单元在时域上连续，为了便于理解，可以将在时域上连续的两个时间单元看做是一组时间单元，那么一个SSB包括至少一组时间单元，如果至少一组时间单元的数量大于1，那么至少一组时间单元之间是不连续的。通过这种使得(N+M+X)个时间单元在时域上部分不连续的方式，使得(N+M+X)个时间单元在时域上的空隙(也就是不连续的时域位置)还可以承载其他信号，也是有助于与现有系统和现有URLLC业务的兼容。
可参考图8，为一个SSB的示意，该SSB是以X大于N、N等于M为例。在该SSB中，PSS占用1个时间单元，SSS占用1个时间单元，PBCH占用2个时间单元。具体的，PSS位于一个时隙中的符号4、符号5、符号6和符号7，SSS位于同一个时隙中的符号8、符号9、符号10和符号11，PBCH位于下一个时隙中的符号4、符号5、符号6、符号7、符号8、符号9、符号10和符号11。例如认为图8中的该SSB包括两组时间单元，其中PSS和SSS占用的2个时间单元构成一组时间单元，PBCH占用的2个时间单元构成另一组时间单元，从图8中可以看到，这两组时间单元中的每组时间单元所包括的2个时间单元在时域上是连续的，但是这两组时间单元在时域上是不连续的。图8中所示SSB结构可以很好兼容子载波间隔为30kHz或120kHz的现有NR系统，实现宽窄一体，且降低对URLLC的时延影响。
另外，SSB所包括的PSS、SSS和PBCH，究竟位于哪些时隙中，以及究竟位于相应时隙的哪些符号中，可以由网络设备配置，或者通过协议规定。
在本申请实施例中，一个SSB位于一段时长内，这段时长可以认为是一个时间窗。例如目前的SSB位于5ms的时间窗内，从图6A～图6C、图7A～图7B或图8中均可以看出，本申请实施例也是以一个SSB位于一个5ms的时间窗内为例，当然本申请实施例不限制一个SSB所在的时间窗的长度，除了5ms之外，也可以是其他的长度。只是令本申请实施例中的SSB也位于5ms的时间窗内，有助于与现有系统的兼容。
那么在本申请实施例中，至少一个SSB(记为K个SSB)可以位于一个或多个时间窗 内。例如，K个SSB分别位于K个时间窗内，即每个时间窗内包含1个SSB。又例如，K个SSB位于同一个时间窗内。又例如，K个SSB等分成P组(P为小于K的正整数)，该P组SSB分别位于P个时间窗内，假设K＝8，P＝4，即8个SSB分成4组，每组包括2个SSB，该4组SSB分别位于4个时间窗内。又例如，K个SSB不均等分成P组(P为小于K的正整数)，该P组SSB分别位于P个时间窗内，假设K＝5，P＝2，5个SSB分成2组，第一组包括3个SSB，第二组包括2个SSB，该2组SSB分别位于2个时间窗内。
当一个时间窗内存在多个SSB时，网络设备可以配置一个时间窗内的多个SSB采用相同的波束方向，或不同的波束方向，本申请实施例不做限制。
SSB的时域结构，可以包括SSB对应的N的取值、SSB对应的M的取值、SSB对应的X的取值、SSB中包括的(N+M+X)个时间单元在时域上占用的符号，时隙或时间窗中的至少一种。对于两个SSB来说，只要如上的几项中有一项不同，就认为这两个SSB的时域结构不同。例如第一SSB和第二SSB，如果第一SSB中N，M和X都为正整数(即第一SSB包括PSS，SSS和PBCH)，第二SSB中N和X为正整数，而M为0(即第二SSB只包括PSS和PBCH)，那么这两个SSB的时域结构不同；或者，第一SSB包括的(N+M+X)个时间单元在时域上不连续，而第二SSB包括的(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域上不连续，那么这两个SSB的时域结构不同，等等。
可选的，至少一个SSB中至少包括2个不同时域结构的SSB，那么至少一个SSB中包括的一部分SSB在时域结构上相同，其余部分SSB在时域结构上不相同，或者，至少一个SSB中包括的SSB在时域结构上均不相同。例如，至少一个SSB包括第一SSB和第二SSB，其中，第一SSB中N，M和X都为正整数(即第一SSB包括PSS，SSS和PBCH)，第二SSB中N和X为正整数，而M为0(即第二SSB只包括PSS和PBCH)。例如，至少一个SSB包括第一SSB，第二SSB和第三SSB，其中，第一SSB包括PSS，SSS和PBCH，第二SSB只包括PSS和PBCH，第三SSB只包括PBCH。例如，至少一个SSB包括第一SSB，第二SSB，第三SSB和第四SSB，其中，第一SSB和第三SSB包括PSS，SSS和PBCH，第二SSB和第四SSB只包括PSS和PBCH。对于至少一个SSB中的每个SSB的时域结构或所包含的内容，可以由网络设备配置，或者通过协议规定。
可选的，至少一个SSB可以位于多个时间窗内，位于不同的时间窗内的SSB的时域结构可能均是相同的，或者也可能不同。例如可参考图9，其中包括两个SSB，该两个SSB为所述至少一个SSB中的两个SSB。例如，图9中位于第一时间窗内的SSB1包括PSS、SSS和PBCH，即N、M和X均为正整数，而位于第二时间窗内的SSB2只包括PSS和PBCH，而不包括SSS，即N和X为正整数，而M为0，显然，这两个SSB的时域结构是不同的。例如，图9中位于第一时间窗内的SSB1的时域结构如图7B，而位于第二时间窗内的SSB2的时域结构如图6B或图6C，显然，这两个SSB的时域结构是不同的。
作为SSB来说，每个SSB都具有时域结构。至少一个SSB中的不同的SSB的时域结构可能相同，也可能不同，而至少一个SSB的时域结构可以看做一个整体，例如称为SSB时域结构，或者称为SSB结构，或者称为SSB图案(pattern)等，本申请实施例并不限制SSB时域结构的名词。SSB时域结构就可以指示至少一个SSB中的每个SSB的时域结构。例如，至少一个SSB中的每个SSB的时域结构都相同，那么SSB时域结构就只包括一个SSB的时域结构，这一个SSB的时域结构就是至少一个SSB中的每个SSB的时域结 构，或者，如果至少一个SSB中的不同的SSB的时域结构不同，那么SSB时域结构可以包括多个SSB的时域结构，这多个SSB的时域结构就可以表明至少一个SSB中的每个SSB的时域结构，此时，如果至少一个SSB的时域结构均不相同，那么SSB时域结构所包括的SSB的时域结构的数量与至少一个SSB的数量相同，SSB和SSB时域结构所包括的SSB的时域结构是一一对应的关系，或者，如果至少一个SSB中有部分SSB的时域结构相同，而另一部分SSB的时域结构不同，那么SSB时域结构所包括的SSB的时域结构的数量可以小于至少一个SSB的数量，可以理解为，同一种时域结构在SSB时域结构中只包括一份就好，有助于简化SSB时域结构。
S52、网络设备发送所述至少一个SSB，则终端设备接收来自网络设备的至少一个SSB。
需要说明的是，终端设备接收的至少一个SSB是网络设备发送的至少一个SSB中的一部分或全部，也就是，终端设备接收的SSB的数量可以少于或等于网络设备发送的SSB的数量。因为网络设备面向的是小区内的多个终端设备，所以可以采用不同的波束方向，或不同的时域和/或频域密度向不同的终端设备发送不同的SSB。例如，如果一个终端设备只接收一个波束方向的SSB，那么该终端设备接收的SSB是网络设备所发送的SSB中的一部分。
在S51中介绍了，至少一个SSB具有SSB时域结构，终端设备需要获得该SSB时域结构，这样才能检测至少一个SSB。另外，如果终端设备是初始接入，那么终端设备不知道SSB的位置，所以终端设备会对SSB进行盲检测；或者，对于处于连接态的终端设备，一般是知道SSB的位置的，因此可以直接检测，也就是直接接收。因此在本申请实施例中，终端设备“接收”，和终端设备“检测”，可以认为是同一种过程，也就是说，“接收”也就是“检测”。那么，终端设备检测SSB，可能有两种结果：
1、检测到(也就是接收到)SSB；
2、没有检测到(也就是没有接收到)SSB。
这两种结果之间是“或”的关系。
在本申请实施例中，在终端设备接收至少一个SSB之前或同时，该终端设备需要获取SSB时频结构，包括但不限于如下的三种方式：
第一种方式，SSB时域结构是标准预先定义，该SSB时域结构预配置在终端设备中，或者说，终端设备预先存储了SSB时频结构。此时，终端设备确定SSB时频结构，具体为，终端设备获取预配置或存储于终端设备的SSB时域结构；
第二种方式，终端设备接收第一信令，所述第一信令指示SSB时频结构，第一信令例如是网络设备发送的，终端设备根据第一信令就可以确定SSB时域结构。例如，第一信令指示N，M和/或X的取值。例如，第一信令指示(N+M+X)个时间单元在时域上的位置。例如，第一信令指示本申请实施例中引入的至少一种SSB时域结构中的一种或多种。第一信令例如为高层信令，例如无线资源控制(radio resource control，RRC)信令或媒体接入控制控制元素(media access control control element，MAC CE)等；或者，第一信令例如为物理层信令，例如下行控制信息(downlink control information，DCI)等。对于第一信令的实现方式不做限制。
第三种方式，终端设备可直接按照窄带能力获取SSB时域结构。例如一个终端设备既可以按照宽带能力接入系统，也可以按照窄带能力接入系统。如果该终端设备处于深度覆盖或超远覆盖的场景，那么该终端设备可以选择按照窄带能力来获取SSB时域结构，以提 升该终端设备接入系统的效率。例如，认为所支持的带宽大于或等于5MHz的终端设备是宽带终端设备，那么，终端设备支持的带宽大于或等于5MHz，该终端设备可以按照窄带能力获取SSB时域结构。
可选的，所述终端设备接收的所述至少一个SSB在频域上占用的带宽小于20个RB(resource block)，或者，小于或等于12个RB，其中，一个RB在频域上占用Q个子载波，Q可以为正整数，例如Q＝12。因此，窄带终端设备(最大带宽能力小于或等于12/20个RB)可以正常接收所述至少一个SSB。而且，通过本申请实施例提供的SSB时域结构，可以满足超远覆盖和深度覆盖需求。
S53、终端设备根据接收的所述至少一个SSB进行同步和/或获取系统消息。
具体的，终端设备可以根据至少一个SSB与网络设备进行同步，或者根据至少一个SSB获取系统消息，或者根据至少一个SSB与网络设备进行同步以及获取系统消息。
例如，当SSB包括PSS、SSS和PBCH时，终端设备可以先检测PSS，然后检测SSS，获取时频同步和/或物理小区的身份号(ID)，最后再检测PBCH，以获取系统消息。后续，终端设备可以基于该时频同步和系统消息与网络设备进行数据传输。
可选的，160ms内的PBCH上承载的主信息块(master information block，MIB)是相同的。相比现有的NR系统中的MIB在80ms的时间间隔(8个子帧)内是相同的，本申请实施例所提供的新的SSB中的PBCH的重复次数更多，终端设备可以基于更多个PBCH合并检测，增强终端设备接收性能，适合于窄带终端设备以及覆盖增强场景。
如前文所述，系统中可能存在多种业务，多种场景，也存在多种带宽能力的终端设备。因此，一个载波上可能会有URLLC、eMBB和mMTC业务，一个载波可能会用于窄带终端设备和宽带终端设备传输数据。采用本申请实施例所提供的SSB，为多种业务的复用，或者说为宽窄一体，提供了便利。
下面结合附图介绍本申请实施例中用来实现上述方法的装置。因此，上文中的内容均可以用于后续实施例中，重复的内容不再赘述。
图10示出了一种通信装置1000的结构示意图。该通信装置1000可以实现上文中涉及的终端设备的功能。该通信装置1000可以是上文中所述的终端设备，或者可以是设置在上文中所述的终端设备中的芯片。该通信装置1000可以包括处理器1001和收发器1002。其中，处理器1001可以用于执行图5所示的实施例中的S53，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器1002可以用于执行图5所示的实施例中的S52，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，收发器1002，用于接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
处理器1001，用于根据接收的所述至少一个SSB进行同步和/或获取系统消息。
在一种可能的实施方式中，Y＝4。
在一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
在一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000021
中的任一个。
在一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
在一种可能的实施方式中，X大于或等于N。
在一种可能的实施方式中，N大于或等于M。
在一种可能的实施方式中，
收发器1002，还用于在接收至少一个SSB之前，接收第一信令，所述第一信令用于指示SSB时域结构；
收发器1002用于通过如下方式接收至少一个SSB：根据所述SSB时域结构接收所述至少一个SSB。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
图11示出了一种通信装置1100的结构示意图。该通信装置1100可以实现上文中涉及的网络设备的功能。该通信装置1100可以是上文中所述的网络设备，或者可以是设置在上文中所述的网络设备中的芯片。该通信装置1100可以包括处理器1101和收发器1102。其中，处理器1101可以用于执行图5所示的实施例中的S51，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发器1102可以用于执行图5所示的实施例中的S52，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，处理器1101，用于生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
收发器1102，用于发送所述至少一个SSB。
在一种可能的实施方式中，Y＝4。
在一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
在一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000022
中的任一个。
在一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不 同的时间窗内的SSB的时域结构不同。
在一种可能的实施方式中，X大于或等于N。
在一种可能的实施方式中，N大于或等于M。
在一种可能的实施方式中，收发器1102，还用于发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在一个简单的实施例中，本领域的技术人员可以想到，还可以将通信装置1000或通信装置1100通过如图12A所示的通信装置1200的结构实现。该通信装置1200可以实现上文中涉及的终端设备或网络设备的功能。该通信装置1200可以包括处理器1201。
其中，在该通信装置1200用于实现上文中涉及的终端设备的功能时，处理器1201可以用于执行图5所示的实施例中的S53，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程；或者，在该通信装置1200用于实现上文中涉及的网络设备的功能时，处理器1201可以用于执行图5所示的实施例中的S51，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的网络设备所执行的除了收发操作之外的全部的其他操作或部分的其他操作。
其中，通信装置1200可以通过现场可编程门阵列(field-programmable gate array，FPGA)，专用集成芯片(application specific integrated circuit，ASIC)，系统芯片(system on chip，SoC)，中央处理器(central processor unit，CPU)，网络处理器(network processor，NP)，数字信号处理电路(digital signal processor，DSP)，微控制器(micro controller unit，MCU)，还可以是可编程控制器(programmable logic device，PLD)或其他集成芯片实现，则通信装置1200可被设置于本申请实施例的终端设备或网络设备中，以使得终端设备或网络设备实现本申请实施例提供的方法。
在一种可选的实现方式中，该通信装置1200可以包括收发组件，用于与其他设备进行通信。其中，在该通信装置1200用于实现上文中涉及的终端设备或网络设备的功能时，收发组件可以用于执行图5所示的实施例中的S52，和/或用于支持本文所描述的技术的其它过程。例如，一种收发组件为通信接口，如果通信装置1200为终端设备或网络设备，则通信接口可以是终端设备或网络设备中的收发器，例如收发器1102或收发器1202，收发器例如为终端设备或网络设备中的射频收发组件，或者，如果通信装置1200为设置在终端设备或网络设备中的芯片，则通信接口可以是该芯片的输入/输出接口，例如输入/输出管脚等。
在一种可选的实现方式中，该通信装置1200还可以包括存储器1202，可参考图12B，其中，存储器1202用于存储计算机程序或指令，处理器1201用于译码和执行这些计算机程序或指令。应理解，这些计算机程序或指令可包括上述终端设备或网络设备的功能程序。当终端设备的功能程序被处理器1201译码并执行时，可使得终端设备实现本申请实施例图5所示的实施例所提供的方法中终端设备的功能。当网络设备的功能程序被处理器1201译码并执行时，可使得网络设备实现本申请实施例图5所示的实施例所提供的方法中网络设备的功能。
在另一种可选的实现方式中，这些终端设备或网络设备的功能程序存储在通信装置 1200外部的存储器中。当终端设备的功能程序被处理器1201译码并执行时，存储器1202中临时存放上述终端设备的功能程序的部分或全部内容。当网络设备的功能程序被处理器1201译码并执行时，存储器1202中临时存放上述网络设备的功能程序的部分或全部内容。
在另一种可选的实现方式中，这些终端设备或网络设备的功能程序被设置于存储在通信装置1200内部的存储器1202中。当通信装置1200内部的存储器1202中存储有终端设备的功能程序时，通信装置1200可被设置在本申请实施例的终端设备中。当通信装置1200内部的存储器1202中存储有网络设备的功能程序时，通信装置1200可被设置在本申请实施例的网络设备中。
在又一种可选的实现方式中，这些终端设备的功能程序的部分内容存储在通信装置1200外部的存储器中，这些终端设备的功能程序的其他部分内容存储在通信装置1200内部的存储器1202中。或，这些网络设备的功能程序的部分内容存储在通信装置1200外部的存储器中，这些网络设备的功能程序的其他部分内容存储在通信装置1200内部的存储器1202中。
在本申请实施例中，通信装置1000、通信装置1100及通信装置1200对应各个功能划分各个功能模块的形式来呈现，或者，可以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以指ASIC，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，和/或其他可以提供上述功能的器件。
另外，图10所示的实施例提供的通信装置1000还可以通过其他形式实现。例如该通信装置包括处理模块和收发模块。例如处理模块可通过处理器1001实现，收发模块可通过收发器1002实现。其中，处理模块可以用于执行图5所示的实施例中的S53，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的终端设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发模块可以用于执行图5所示的实施例中的S52，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的终端设备所执行的全部的收发过程或部分的收发过程。
例如，收发模块，用于接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
处理模块，用于根据接收的所述至少一个SSB进行同步和/或获取系统消息。
在一种可能的实施方式中，Y＝4。
在一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
在一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000023
中的任一个。
在一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
在一种可能的实施方式中，X大于或等于N。
在一种可能的实施方式中，N大于或等于M。
在一种可能的实施方式中，
收发模块，还用于在接收至少一个SSB之前，接收第一信令，所述第一信令用于指示SSB时域结构；
收发模块用于通过如下方式接收至少一个SSB：根据所述SSB时域结构接收所述至少一个SSB。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
图11所示的实施例提供的通信装置1100还可以通过其他形式实现。例如该通信装置包括处理模块和收发模块。例如处理模块可通过处理器1101实现，收发模块可通过收发器1102实现。其中，处理模块可以用于执行图5所示的实施例中的S51，和/或用于支持本文所描述的技术的其他过程，例如可以执行前文中所述的网络设备所执行的除了收发过程之外的全部的其他过程或部分的其他过程。收发模块可以用于执行图5所示的实施例中的S52，和/或用于支持本文所描述的技术的其它过程，例如可以执行前文中所述的网络设备所执行的全部的收发过程或部分的收发过程。
例如，处理模块，用于生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
收发模块，用于发送所述至少一个SSB。
在一种可能的实施方式中，Y＝4。
在一种可能的实施方式中，所述(N+M+X)个时间单元在时域上不连续。
在一种可能的实施方式中，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为0,1,…,
Figure PCTCN2020072081-appb-000024
中的任一个。
在一种可能的实施方式中，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
在一种可能的实施方式中，X大于或等于N。
在一种可能的实施方式中，N大于或等于M。
在一种可能的实施方式中，收发模块，还用于发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
由于本申请实施例提供的通信装置1000、通信装置1100及通信装置1200可用于执行图5所示的实施例所提供的方法，因此其所能获得的技术效果可参考上述方法实施例，在 此不再赘述。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital versatile disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (34)

  1. 一种通信方法，其特征在于，包括：
    终端设备接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
    所述终端设备根据接收的所述至少一个SSB进行同步和/或获取系统消息。
  2. 根据权利要求1所述的方法，其特征在于，Y＝4。
  3. 根据权利要求1或2所述的方法，其特征在于，所述(N+M+X)个时间单元在时域上不连续。
  4. 根据权利要求1或2所述的方法，其特征在于，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为
    Figure PCTCN2020072081-appb-100001
    中的任一个。
  5. 根据权利要求1～4任一项所述的方法，其特征在于，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
  6. 根据权利要求1～5任一项所述的方法，其特征在于，X大于或等于N。
  7. 根据权利要求1～6任一项所述的方法，其特征在于，N大于或等于M。
  8. 根据权利要求1～7任一项所述的方法，其特征在于，
    在终端设备接收至少一个SSB之前，还包括：所述终端设备接收第一信令，所述第一信令用于指示SSB时域结构；
    所述终端设备接收至少一个SSB，包括：所述终端设备根据所述SSB时域结构接收所述至少一个SSB。
  9. 一种通信方法，其特征在于，包括：
    网络设备生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
    所述网络设备发送所述至少一个SSB。
  10. 根据权利要求9所述的方法，其特征在于，Y＝4。
  11. 根据权利要求9或10所述的方法，其特征在于，所述(N+M+X)个时间单元在时域上不连续。
  12. 根据权利要求9或10所述的方法，其特征在于，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在 时域不连续，i为
    Figure PCTCN2020072081-appb-100002
    中的任一个。
  13. 根据权利要求9～12任一项所述的方法，其特征在于，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
  14. 根据权利要求9～13任一项所述的方法，其特征在于，X大于或等于N。
  15. 根据权利要求9～14任一项所述的方法，其特征在于，N大于或等于M。
  16. 根据权利要求9～15任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
  17. 一种通信装置，其特征在于，包括：
    收发器，用于接收至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不同时为0，Y为大于1的整数；
    处理器，用于根据接收的所述至少一个SSB进行同步和/或获取系统消息。
  18. 根据权利要求17所述的通信装置，其特征在于，Y＝4。
  19. 根据权利要求17或18所述的通信装置，其特征在于，所述(N+M+X)个时间单元在时域上不连续。
  20. 根据权利要求17或18所述的通信装置，其特征在于，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为
    Figure PCTCN2020072081-appb-100003
    中的任一个。
  21. 根据权利要求17～20任一项所述的通信装置，其特征在于，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
  22. 根据权利要求17～21任一项所述的通信装置，其特征在于，X大于或等于N。
  23. 根据权利要求17～22任一项所述的通信装置，其特征在于，N大于或等于M。
  24. 根据权利要求17～23任一项所述的通信装置，其特征在于，
    所述收发器，还用于在接收至少一个SSB之前，接收第一信令，所述第一信令用于指示SSB时域结构；
    所述收发器用于通过如下方式接收至少一个SSB：根据所述SSB时域结构接收所述至少一个SSB。
  25. 一种通信装置，其特征在于，包括：
    处理器，用于生成至少一个SSB，所述至少一个SSB中的一个SSB包括PSS、SSS或PBCH中的至少一种，所述一个SSB占用(N+M+X)个时间单元，所述一个SSB的时域结构为：在所述一个SSB中，所述PSS占用N个时间单元，所述SSS占用M个时间单元，所述PBCH占用X个时间单元；其中，每个所述时间单元包括Y个符号，N为大于或等于0的整数，M为大于或等于0的整数，X为大于或等于0的整数，且N、X和M不 同时为0，Y为大于1的整数；
    收发器，用于发送所述至少一个SSB。
  26. 根据权利要求25所述的通信装置，其特征在于，Y＝4。
  27. 根据权利要求25或26所述的通信装置，其特征在于，所述(N+M+X)个时间单元在时域上不连续。
  28. 根据权利要求25或26所述的通信装置，其特征在于，所述(N+M+X)个时间单元中的时间单元2*i和时间单元2*i+1在时域上连续，且时间单元2*i+1和时间单元2*(i+1)在时域不连续，i为
    Figure PCTCN2020072081-appb-100004
    中的任一个。
  29. 根据权利要求25～28任一项所述的通信装置，其特征在于，所述至少一个SSB位于至少一个时间窗内，其中，位于不同的时间窗内的SSB的时域结构不同。
  30. 根据权利要求25～29任一项所述的通信装置，其特征在于，X大于或等于N。
  31. 根据权利要求25～30任一项所述的通信装置，其特征在于，N大于或等于M。
  32. 根据权利要求25～31任一项所述的通信装置，其特征在于，所述收发器，还用于发送第一信令，所述第一信令用于指示SSB时域结构，所述SSB时域结构用于接收所述至少一个SSB。
  33. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序包括程序指令，所述程序指令在被计算机执行时，使所述计算机执行如权利要求1～8中任一项所述的方法。
  34. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序包括程序指令，所述程序指令在被计算机执行时，使所述计算机执行如权利要求9～16中任一项所述的方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078616A1 (zh) * 2022-10-14 2024-04-18 维沃移动通信有限公司 下行传输的方法、终端及网络侧设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585729A (zh) * 2019-02-15 2020-08-25 电信科学技术研究院有限公司 一种信号的发送、接收方法、网络设备及终端
CN115412962A (zh) * 2021-05-26 2022-11-29 华为技术有限公司 一种发送ssb的方法和相关装置
CN115707013A (zh) * 2021-08-11 2023-02-17 华为技术有限公司 一种通信方法及通信装置
CN116391369A (zh) * 2023-02-10 2023-07-04 北京小米移动软件有限公司 通信控制方法、装置、通信设备及存储介质

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104955106A (zh) * 2014-03-31 2015-09-30 华为技术有限公司 资源分配、数据处理方法及装置
WO2018235208A1 (ja) * 2017-06-21 2018-12-27 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10362610B2 (en) * 2016-09-19 2019-07-23 Samsung Electronics Co., Ltd. Method and apparatus for mapping initial access signals in wireless systems
KR20180107686A (ko) * 2017-03-22 2018-10-02 삼성전자주식회사 무선 셀룰라 통신 시스템에서 상향 제어 채널 전송 방법 및 장치
US11122497B2 (en) * 2017-05-04 2021-09-14 Samsung Electronics Co., Ltd. Method and apparatus for SS block index and timing indication in wireless systems
CN109150448B (zh) * 2017-06-16 2023-04-18 华为技术有限公司 发送信号和接收信号的方法、网络设备和用户设备
CN109041593B (zh) * 2018-07-11 2021-04-06 北京小米移动软件有限公司 随机接入配置方法及装置、随机接入方法及装置和基站
CN110891301B (zh) * 2018-09-10 2021-08-24 维沃移动通信有限公司 一种信道测量方法、终端设备和网络侧设备
US11985613B2 (en) * 2018-11-02 2024-05-14 Lg Electronics Inc. Transmitting and receiving synchronization signal in wireless communication between terminals and apparatus therefor
US11445460B2 (en) * 2018-12-20 2022-09-13 Qualcomm Incorporated Flexible configuration of synchronization signal block time locations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104955106A (zh) * 2014-03-31 2015-09-30 华为技术有限公司 资源分配、数据处理方法及装置
WO2018235208A1 (ja) * 2017-06-21 2018-12-27 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3905799A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024078616A1 (zh) * 2022-10-14 2024-04-18 维沃移动通信有限公司 下行传输的方法、终端及网络侧设备

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