WO2021062575A1 - 信号的传输方法、装置和通信系统 - Google Patents

信号的传输方法、装置和通信系统 Download PDF

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Publication number
WO2021062575A1
WO2021062575A1 PCT/CN2019/109264 CN2019109264W WO2021062575A1 WO 2021062575 A1 WO2021062575 A1 WO 2021062575A1 CN 2019109264 W CN2019109264 W CN 2019109264W WO 2021062575 A1 WO2021062575 A1 WO 2021062575A1
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WIPO (PCT)
Prior art keywords
frequency domain
resource set
coreset
control resource
subband
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Ceased
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PCT/CN2019/109264
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English (en)
French (fr)
Inventor
蒋琴艳
下村刚史
贾美艺
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Fujitsu Ltd
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Fujitsu Ltd
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Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/CN2019/109264 priority Critical patent/WO2021062575A1/zh
Priority to EP19948132.6A priority patent/EP4040876B1/en
Priority to KR1020227010198A priority patent/KR20220053640A/ko
Priority to CN201980100589.3A priority patent/CN114424639B/zh
Priority to JP2022519224A priority patent/JP7428243B2/ja
Publication of WO2021062575A1 publication Critical patent/WO2021062575A1/zh
Priority to US17/705,198 priority patent/US12284619B2/en
Anticipated expiration legal-status Critical
Priority to US19/083,491 priority patent/US20250220600A1/en
Ceased legal-status Critical Current

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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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • the embodiments of the present application relate to the field of wireless communication technology.
  • a synchronization/frequency raster (Global Synchronization/frequency Raster) or a synchronization raster (Synchronization/SS raster) is defined for the frequency range of 0-100 GHz.
  • Synchronization raster represents that the terminal device can be used to obtain the display signal when it does not receive the display signal indicating the location of the synchronization signal/physical broadcast channel block (SS/PBCH block) (or called Synchronization Signal Block, SS block, SSB)
  • SS/PBCH block Synchronization Signal Block
  • the frequency position of the synchronization signal/physical broadcast channel block of the system-related information One frequency position corresponds to a global synchronization channel number (Globla Synchronization Channel Number, GSCN).
  • Globla Synchronization Channel Number, GSCN Global Synchronization Channel Number
  • the value range of GSCN is defined for part of the NR operating band, that is, the corresponding available synchronous grating is defined.
  • Unlicensed frequency bands are an important part of spectrum resources. At present, many systems support working in unlicensed frequency bands, such as WiFi, Long Term Evolution (LTE) and License Assisted Access (LAA). However, the current New Radio (NR, New Radio) system does not support operation in unlicensed frequency bands.
  • LTE Long Term Evolution
  • LAA License Assisted Access
  • one SSB may include 4 symbols; in the frequency domain, one SSB may include 240 subcarriers, or in other words, include 20 RBs, and each RB includes 12 subcarriers.
  • Figure 1A is a schematic diagram of the time-frequency domain structure of an SSB. From the perspective of frequency domain, an SSB can be located on the synchronous grating or not on the synchronous grating. If the sub-carrier of an SSB and a synchronous grating satisfy the predefined mapping relationship, the SSB is located on the synchronous grating.
  • the SSB is not Located on the synchronous grating.
  • the predefined mapping relationship means, for example, that the synchronization grating corresponds to a specific subcarrier of the SSB, and the specific subcarrier is predefined.
  • the specific subcarrier is the 121st subcarrier of the SSB, or in other words, the first subcarrier of the 10th PRB of the SSB.
  • pre-defined refers to the definition in the communication protocol.
  • the inventor of the present application found that in the existing NR system design, if an SSB is not located on the synchronization grating, it is mainly used for terminal equipment to perform measurement, not for cell selection or reselection, and there is no need for the terminal equipment to receive SIB1 according to the SSB. .
  • the inventor of the present application further discovered that with the further evolution of the NR system, it is necessary for the terminal device to receive the SIB1 according to the SSB not located on the synchronization raster.
  • the embodiments of the present application provide a signal transmission method, device, and communication system.
  • the first synchronization signal/physical broadcast channel block not located on the synchronization raster is associated with a control resource set, and the control resource set is used to send a PDCCH.
  • the remaining minimum system information/system information block 1 (RMSI/SIB1) carried in.
  • a signal transmission method which is applied to a terminal device.
  • the method includes: receiving a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), and the first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB) is provided.
  • a synchronization signal/physical broadcast channel block is not located on the first synchronization raster; and a physical downlink control channel (PDCCH) is received, and the physical downlink control channel (PDCCH) is used for scheduling to carry the remaining minimum system information/system information block 1 (RMSI/SIB1) Physical Downlink Shared Channel (PDSCH).
  • RMSI/SIB1 Physical Downlink Shared Channel
  • a signal transmission method which is applied to a network device, and the method includes: sending a first synchronization signal/physical broadcast channel block (SS/PBCH) that is not located on a first synchronization raster. block, SSB); and sending the physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) is used to schedule the physical downlink shared channel (RMSI/SIB1) used to carry the remaining minimum system information/system information block 1 (RMSI/SIB1) PDSCH).
  • SS/PBCH first synchronization signal/physical broadcast channel block
  • PDCCH physical downlink control channel
  • RMSI/SIB1 physical downlink shared channel
  • RMSI/SIB1 the remaining minimum system information/system information block 1
  • a signal transmission device which is applied to a terminal device, and the device executes the signal transmission method of the first aspect of the embodiments of the present application.
  • a signal transmission device which is applied to a network device, and the device executes the signal transmission method of the second aspect of the embodiments of the present application.
  • a terminal device which has the signal transmission apparatus described in the third aspect of the embodiments of the present application.
  • a network device which has the signal transmission apparatus described in the fourth aspect of the embodiments of the present application.
  • a communication system having the terminal device described in the sixth aspect of the embodiments of the present application and the network device described in the seventh aspect.
  • a computer-readable program wherein when the program is executed in a signal transmission device or terminal device, the program causes the signal transmission device or terminal device to execute The signal transmission method of the first aspect of the embodiments of the present application.
  • a storage medium storing a computer-readable program, wherein the computer-readable program causes a signal transmission device or terminal device to execute the first aspect of the embodiments of the present application The transmission method of the signal.
  • a computer-readable program wherein when the program is executed in a signal transmission device or network device, the program causes the signal transmission device or network device to execute The signal transmission method described in the second aspect of the embodiments of the present application.
  • a storage medium storing a computer readable program, wherein the computer readable program enables the signal transmission device or network device to execute the method described in the second aspect of the embodiments of the present application.
  • the transmission method of the signal is provided.
  • the beneficial effect of the embodiments of the present application is that the first synchronization signal/physical broadcast channel block not located on the synchronization raster is associated with a control resource set, the control resource set is used to transmit the PDCCH, and the PDCCH is used for scheduling to carry the minimum remaining The physical downlink shared channel (PDSCH) of system information/system information block 1 (RMSI/SIB1), thus, the terminal device can obtain the PDSCH scheduled by the PDCCH after receiving the PDCCH, and obtain the remaining minimum system information/system carried in the PDSCH Information block 1 (RMSI/SIB1).
  • PDSCH physical downlink shared channel
  • RMSI/SIB1 system information/system information block 1
  • Figure 1A is a schematic diagram of the SSB time-frequency domain structure
  • Figure 1B is a schematic diagram of the SSB located on the synchronous grating
  • Fig. 1C is an example of sub-band division in a working frequency band
  • FIG. 1D is a schematic diagram of the positional relationship between the first synchronous grating and the sub-band
  • Fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the signal transmission method of the first aspect of the embodiments of the present application.
  • Fig. 4 is a schematic diagram of the first synchronous grating and the second synchronous grating
  • FIG. 5 is a schematic diagram of the corresponding relationship between the first SSB and the second synchronous grating
  • FIG. 6A is a schematic diagram of the position of the reference frequency
  • FIG. 6B is a schematic diagram of the indication information indicating the frequency domain position of the control resource set based on the CRB;
  • FIG. 7 is a schematic diagram of the correspondence between the physical resource block grid of the first SSB and the physical resource block grid of the control resource set;
  • FIG. 8 is a schematic diagram of the signal transmission method of the second aspect of the embodiments of the present application.
  • FIG. 9 is a schematic diagram of the signal transmission device of the third aspect of the embodiments of the present application.
  • FIG. 10 is a schematic diagram of the signal transmission device of the fourth aspect of the embodiments of the present application.
  • FIG. 11 is a schematic block diagram of the system configuration of the terminal device in the fifth aspect of the embodiments of the present application.
  • FIG. 12 is a schematic diagram of a structure of a network device in the sixth aspect of the embodiments of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the terms, but they do not indicate the spatial arrangement or chronological order of these elements. These elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” can refer to a network that meets any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE-A). Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • LTE-A LTE-A
  • Advanced Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other currently known or future communication protocols.
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device.
  • Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
  • the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay), or low-power node (such as femto, pico, etc.).
  • NodeB Node B
  • eNodeB or eNB evolved Node B
  • gNB 5G base station
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay relay
  • low-power node such as femto, pico, etc.
  • base station can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area.
  • the term "cell” may refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "User Equipment” (UE, User Equipment) or “Terminal Equipment” (TE, Terminal Equipment), for example, refers to equipment that accesses a communication network through a network device and receives network services.
  • the user equipment may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc.
  • user equipment may include, but is not limited to, the following devices: Cellular Phone, Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, Cordless phones, smart phones, smart watches, digital cameras, etc.
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine-type communication device
  • laptop computer machine-type communication device
  • Cordless phones smart phones
  • smart watches digital cameras, etc.
  • user equipment may also be a machine or device that performs monitoring or measurement.
  • it may include, but is not limited to: Machine Type Communication (MTC) terminals, In-vehicle communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates a case where terminal equipment and network equipment are taken as an example.
  • the communication system 200 may include a network equipment 201 and a terminal equipment 202 (for simple For the sake of illustration, Figure 2 only takes one terminal device as an example for illustration).
  • eMBB enhanced mobile broadband
  • mMTC large-scale machine type communication
  • URLLC Ultra-Reliable and Low- Latency Communication
  • the terminal device 202 can send data to the network device 201, for example, using an unauthorized transmission mode.
  • the network device 201 may receive data sent by one or more terminal devices 202, and feedback information (for example, acknowledgement ACK/non-acknowledgement NACK) information to the terminal device 202, and the terminal device 202 may confirm the end of the transmission process according to the feedback information, or may also re-enter the transmission process. Perform new data transmission, or data retransmission can be performed.
  • feedback information for example, acknowledgement ACK/non-acknowledgement NACK
  • the following description takes the network device in the communication system as the receiving end and the terminal device as the sending end as an example for description, but the present application is not limited to this, and the sending end and/or the receiving end may also be other devices.
  • this application is not only applicable to uplink unauthorized transmission between network equipment and terminal equipment, but also applicable to side link unauthorized transmission between two terminal equipment.
  • Control resource set control resource set
  • PRB Physical resource block physical resource block (it can be interchanged/equivalent to RB in some cases)
  • DCI Downlink control Information Downlink control information
  • PDCCH Physical downlink control channel Physical downlink control channel
  • PDSCH Physical downlink shared channel Physical downlink shared channel
  • PBCH Physical broadcast channel physical broadcast channel
  • DM-RS Demodulation reference signal Demodulation reference signal
  • PSS Primary synchronization signal Primary synchronization signal
  • SSS Secondary synchronization signal Secondary synchronization signal
  • Layer 1 (physical layer)
  • SSB Synchronization Signal Block or SS/PBCH block: synchronization signal block, or synchronization signal/physical broadcast channel block
  • PLMN Public Land Mobile Network Public land mobile network
  • SIB System Information Block system information block
  • SIB1(SIB1 is also referred to as Remaining Minimum System Information (RMSI): System information block 1, system information block 1 is also called remaining minimum system information
  • RMSI Remaining Minimum System Information
  • GSCN Global Synchronization Channel Number Number of global synchronization channels
  • NR-ARFCN NR Absolute Radio Frequency Channel Number: New Air Interface-Absolute Radio Frequency Channel Number
  • Cell-Defining SSB is an SSB with an RMSI associated: The cell defines the SSB, which is the SSB associated with RMSI
  • Control resource set CORESET#0 is used at least for the control resource set scheduled by SIB1.
  • predetermined parameters or “preset” parameters may refer to parameters that are predefined or set in a communication protocol.
  • words such as knowing, determining, and judging have similar meanings and can be replaced in some cases.
  • the first aspect of the embodiments of the present application relates to a signal transmission method, which is applied to a terminal device, such as the terminal device 202.
  • FIG. 3 is a schematic diagram of the signal transmission method of the first aspect of the embodiments of the present application. As shown in FIG. 3, the signal transmission method may include:
  • Operation 301 Receive a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), where the first synchronization signal/physical broadcast channel block is not located on the first synchronization raster; and
  • Operation 302 Receive a physical downlink control channel (PDCCH), where the physical downlink control channel (PDCCH) is used to schedule a physical downlink shared channel (PDSCH) used to carry the remaining minimum system information/system information block 1 (RMSI/SIB1).
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • the PDCCH in the case of receiving the first synchronization signal/physical broadcast channel block not located on the first synchronization raster, the PDCCH is received, and the PDCCH is used for scheduling to carry the remaining minimum system information/ The physical downlink shared channel (PDSCH) of system information block 1 (RMSI/SIB1), thus, after receiving the PDCCH, the terminal device can obtain the PDSCH scheduled by the PDCCH, and obtain the remaining minimum system information/system information carried in the PDSCH Block 1 (RMSI/SIB1).
  • PDSCH physical downlink shared channel
  • RMSI/SIB1 system information block 1
  • the terminal device is required to receive SIB1 according to the SSB not located on the synchronization raster.
  • the NR system may support operation in an unlicensed frequency band (NR_U).
  • NR_U unlicensed frequency band
  • multiple operator networks may be deployed independently on the same channel, and PCI confusion/collision may occur between different operator networks.
  • a possible solution to this problem is that the network equipment instructs the terminal equipment to measure and report the CGI-related information of the cell.
  • the CGI-related information includes at least operator-related information, such as public land mobile network identification (PLMN ID).
  • PLMN ID public land mobile network identification
  • the CGI related information of a cell is sent in SIB1.
  • the terminal device needs to receive the information according to the SSB not located on the synchronization raster SIB1 of the cell.
  • terminal equipment Since SIB1 is carried by PDSCH and PDSCH is scheduled by PDCCH, in order for terminal equipment to receive SIB1 of the cell, terminal equipment needs to know the relevant information for scheduling the PDCCH used to carry the PDSCH of SIB1, for example, for Only by sending the control resource set of the PDCCH can the PDCCH be monitored and received, and then the PDSCH can be received. Therefore, if the terminal device wants to receive the SIB1 according to the SSB not located on the synchronization raster, the terminal device at least needs to learn the above-mentioned control resource set according to the SSB.
  • the available synchronous grating defined in the working frequency band of the unlicensed frequency band is referred to as the first synchronous grating below.
  • a working frequency band may include one or more subbands, and the bandwidths of different subbands are the same or different.
  • first synchronous gratings are predefined in one sub-band.
  • the frequency position of a first synchronous grating may be the same as or different from that of a second synchronous grating described below.
  • the interval between two adjacent first synchronous gratings is, for example, Y (Y is, for example, an integer multiple of 1.44) MHz.
  • FIG. 1C is an example of sub-band division in a working frequency band.
  • multiple subbands have the same bandwidth, and one subband has a bandwidth of 20 MHz.
  • FIG. 1D is a schematic diagram of the positional relationship between the first synchronous grating and the sub-band.
  • One first synchronous grating 100 is predefined in one sub-band.
  • the synchronous grating (ie, the second synchronous grating) defined for the frequency range of 0-100 GHz is shown in Table 1. According to Table 1, in the frequency range corresponding to the operating frequency band, the interval between two adjacent second synchronous gratings is 1.44 MHz.
  • Fig. 4 is a schematic diagram of the positional relationship between the first synchronous grating and the second synchronous grating.
  • the frequency positions of the second synchronous grating in the sub-band and the corresponding GSCN are shown in FIG. 4.
  • the first synchronization signal/physical broadcast channel block is not located on the first synchronization raster, which means that the first SSB subcarrier does not meet the predefined requirements of the first synchronization raster.
  • the predefined mapping relationship means, for example, that the first synchronization grating corresponds to a specific subcarrier of the first SSB, and the specific subcarrier is predefined.
  • the control resource set is used to transmit the control resource set used to schedule the PDCCH carrying RMSI/SIB1 (or in other words, the control resource set is the control resource set of Type0-PDCCH CSS set) .
  • the control resource set is CORESET#0.
  • the control resource set includes time domain resources and frequency domain resources.
  • the control resource set includes 1 or 2 symbols in the time domain; the control resource set includes 48 in the frequency domain (the subcarrier interval SCS is 30KHz) ) Or 96 physical resource blocks (when the subcarrier interval SCS is 15KHz), in addition, the resources of the control resource set in the frequency domain can also be represented by subcarriers.
  • the terminal device 202 needs to know at least the location of the frequency domain resource of the control resource set before it can receive the PDCCH sent by the control resource set according to the frequency domain resource.
  • control resource set is associated with the first synchronization signal/physical broadcast channel block, which can be expressed as:
  • the method further includes:
  • Operation 303 Before receiving the physical downlink control channel, the terminal device 202 determines that the physical downlink control channel is used to transmit the physical downlink control channel according to the frequency domain position of the first synchronization signal/physical broadcast channel block and/or the indication information carried by the first synchronization signal/physical broadcast channel block. The control resource collection of the downlink control channel.
  • the control resource set used to transmit the PDCCH used to schedule the PDCCH carrying RMSI/SIB1 is associated with the first synchronization signal/physical broadcast channel block, so that the terminal device 202 can follow
  • the first synchronization signal/physical broadcast channel block (SSB) is used to determine the control resource set for transmitting the physical downlink control channel.
  • the terminal device 202 determines a control resource set used to transmit the physical downlink control channel according to the frequency domain position of the first synchronization signal/physical broadcast channel block.
  • the frequency domain positional relationship between the control resource set and the first SSB is predefined.
  • a predetermined resource ie, a predefined resource
  • a predetermined resource ie, a predefined resource
  • a predetermined resource ie, a predefined resource
  • the relative position or offset is a first predetermined value (ie, a predefined value).
  • the terminal device can determine the frequency domain position of the predetermined resource in the frequency domain resource of the control resource set (CORESET) according to the frequency domain position of the first synchronization signal/physical broadcast channel block and the first predetermined value.
  • the predetermined resource in the frequency domain resources of the control resource set may be: the nth resource block or subcarrier in the control resource set, and n is a natural number, for example, the first subcarrier in the control resource set.
  • the predetermined resource in the frequency domain resources of the first synchronization signal/physical broadcast channel block may be: the kth resource block or subcarrier in the first SSB, and k is a natural number, for example, the first subcarrier in the first SSB.
  • the frequency domain position of the control resource set in a subband is predefined, and the position relationship between the subband where the control resource set is located and the subband where the first SSB is located is predefined.
  • the terminal device can determine the subband where the control resource set is located according to the subband where the first SSB is located, and since the frequency domain position of the control resource set in a subband is predefined, the terminal device can determine The frequency domain position of the control resource set is further determined in this subband.
  • the subband where the first SSB is located is the frequency domain resource of the first SSB or the subband where a predetermined resource in the frequency domain resource of the first SSB is located.
  • the predetermined resource is, for example, the sth resource block or subcarrier in the first SSB, where s is a natural number, for example, the middle subcarrier, that is, the 121st subcarrier, or the first subcarrier of PRB 10.
  • the relative position or offset between the subband where the control resource set is located and the subband where the first SSB is located is a second predetermined value (ie, a predefined value), for example, the second predetermined value may be equal to 0, that is,
  • the subband where the control resource set is located is the subband where the first SSB is located.
  • the frequency domain position of the control resource set in a subband can be predefined as the following position: a frequency domain position related to the frequency domain position of the first synchronization grating in the subband, for example, the related frequency domain position
  • the domain position may be a frequency domain position obtained by adding or subtracting a predetermined value from the frequency domain position of the first synchronous grating; or, compared with the frequency domain position of the second SSB on the first synchronous grating in the one subband.
  • the related frequency domain location may be the frequency domain resource of the second SSB plus OR A frequency domain position obtained by subtracting a predetermined value.
  • the terminal device 202 determines a control resource set used for sending the physical downlink control channel according to the indication information carried by the first synchronization signal/physical broadcast channel block.
  • the indication information is used to indicate the frequency domain position of the control resource set (for example, CORESET#0).
  • the indication information may be carried in the first synchronization signal/physical broadcast channel block, for example, the first synchronization signal in the first synchronization signal/physical broadcast channel block/the primary synchronization signal (PSS) in the physical broadcast channel block ), and/or the secondary synchronization signal (SSS), and/or the physical broadcast channel (PBCH), and/or the physical broadcast channel demodulation reference signal (PBCH DMRS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel demodulation reference signal
  • PBCH DMRS physical broadcast channel demodulation reference signal
  • the indication information may indicate the subband and/or frequency position.
  • the indication information may indicate: the frequency domain resource of the control resource set (CORESET) or the subband where the first predetermined resource in the frequency domain resource of the control resource set is located; and/or, the control resource set (CORESET) The frequency domain position of the second predetermined resource in the frequency domain resource or the frequency domain resource of the control resource set (CORESET).
  • the first predetermined resource may be represented by a resource block or subcarrier
  • the second predetermined resource may be represented by a resource block or subcarrier
  • the first predetermined resource and the second predetermined resource may be the same or different.
  • the terminal device may determine the subband in which the frequency domain resources of the control resource set (CORESET) are located according to the indication information. Therefore, the terminal device can determine the frequency domain resource of the control resource set in combination with the frequency domain position of the frequency domain resource of the control resource set (CORESET) in a subband.
  • the frequency domain position of the first predetermined resource of the control resource set in the subband is the preset position (that is, the frequency domain position is preset), or the frequency domain position indicated by the indication information.
  • the indication information when the indication information indicates a subband, the indication information may indicate the frequency domain resource of the control resource set (CORESET) or the frequency domain resource of the control resource set (CORESET) where the first predetermined resource is located.
  • Index for example, the index of the subband can be expressed as a numerical value.
  • the indication information when the indication information indicates a channel, the indication information may also indicate the frequency domain resources of the control resource set (CORESET) or the subband where the first predetermined resource in the control resource set (CORESET) is located and The relative position of the channel where the frequency domain position of the first synchronization signal/physical broadcast channel block is located, where the frequency domain position of the first synchronization signal/physical broadcast channel block (SSB) may be as described in the first embodiment, for example, The frequency domain position of the k-th resource block or subcarrier in the first SSB, where k is a natural number;
  • the indication information may indicate the frequency domain resource of the control resource set (CORESET) or the synchronization in the channel of the first predetermined resource in the control resource set (CORESET) Raster-related information.
  • the indication information may indicate the frequency domain resource in the control resource set (CORESET) or the global synchronization channel number (GSCN) of the second synchronization raster in the channel where the first predetermined resource is located and the first synchronization signal/physical broadcast channel block The offset value between the global synchronization channel numbers (GSCN) of the corresponding second synchronized grating.
  • CORESET control resource set
  • GSCN global synchronization channel number
  • Fig. 5 is a schematic diagram of the corresponding relationship between the first SSB and the second synchronous grating.
  • the first SSB is not sent to the first synchronization raster 500, but the frequency of the first subcarrier of the resource block 10 of the first SSB is the same as the frequency of the second synchronization raster 501, that is, the first SSB is located at The second synchronous grating 501, therefore, the second synchronous grating 501 is the second synchronous grating corresponding to the first SSB.
  • the first predetermined resource for example, resource block 0
  • the terminal device can obtain the GSCN of the second synchronous grating 503 according to the GSCN of the second synchronous grating 501 and the above-mentioned offset value, and can determine the frequency position of the second synchronous grating 503 according to the GSCN of the second synchronous grating 503. Since the frequency range of the subband is preset, the terminal device can determine the subband 502 where the second synchronization grating 503 is located according to the frequency position of the second synchronization grating 503.
  • the channel 502 is the first predetermined control resource set.
  • the terminal device may determine the frequency domain position of the second predetermined resource in the control resource set (CORESET) according to the indication information.
  • the indication information may indicate the relative position of the frequency domain position and the reference frequency position of the second predetermined resource in the control resource set (CORESET).
  • the reference frequency position may be a predefined frequency position or a frequency position indicated by the network device 201 to the terminal device 202.
  • the reference frequency position may be the frequency domain position of the third predetermined resource of the first SSB, for example, the third predetermined resource is the mth resource block or subcarrier in the frequency domain resource of the first SSB, The frequency domain position of the third predetermined resource is the frequency domain position of the third predetermined resource, and m is a natural number.
  • the reference frequency position may also be the frequency domain position of the fourth predetermined resource of the second SSB.
  • the fourth predetermined resource may be the Lth resource block in the frequency domain resources of the second SSB or Subcarrier, L is a natural number.
  • the frequency domain position of the fourth predetermined resource of the second SSB is a predefined frequency domain position, or the frequency domain position of the fourth predetermined resource of the second SSB may be indicated by the network device 201, for example , Through the instruction information to indicate.
  • the reference frequency position may also be the frequency domain resource of the control resource set (CORESET) (all frequency domain resources are in one channel) or the second predetermined resource in the frequency domain resource of the control resource set.
  • the frequency position of the first sync grating in the subband may be a predefined frequency position, or the frequency position of the first synchronization grating in the subband may be indicated by the network device 201, for example, Instructed by the instruction information.
  • Fig. 6A is a schematic diagram of the position of the reference frequency.
  • the reference frequency position 601 may be the frequency domain position of the first resource block (for example, resource block 0) or subcarrier in the first SSB.
  • the reference frequency position 602 is the frequency domain position of the first resource block (for example, resource block 0) or subcarrier of the second SSB.
  • the reference frequency position 603 is the frequency position of the first resource block (for example, resource block 0) in the frequency domain resources of the control resource set (CORESET) or the first synchronization raster 604 in the channel 600 where the subcarrier is located.
  • CORESET control resource set
  • the reference frequency position may be one of 601, 602, and 603.
  • the indication information may indicate the relative position of the frequency domain position and the reference frequency position of the second predetermined resource in the control resource set (CORESET).
  • the indication information T may indicate the reference frequency position 602 and the frequency domain position 605 of the second predetermined resource in the control resource set (CORESET) (for example, the first resource block or subcarrier Frequency domain position).
  • the relative position indicated by the indication information includes an RB-level (RB-level) relative position and/or a subcarrier-level (subcarrier-level) relative position, which may be, for example, the number of resource blocks and/or The number of subcarriers, for example, the relative position may be K1 resource blocks, K2 subcarriers or K3 resource blocks plus K4 subcarriers.
  • RB-level RB-level
  • subcarrier-level subcarrier-level
  • the indication information may indicate the frequency domain position of the control resource set based on the CRB.
  • FIG. 6B is a schematic diagram of the indication information indicating the frequency domain position of the control resource set based on the CRB. As shown in FIG. 6B, the indication information indicates the deviation between the RB index (index) corresponding to the first RB of the control resource set and the RB index corresponding to the first CRB that overlaps with the first RB of the second SSB. Shift, that is, the relative position of the RB-level, such as offset_1 in FIG.
  • the indication information indicates that the first subcarrier and the first subcarrier of the first CRB overlapping with the first RB of the second SSB
  • the offset between the first sub-carrier of the two SSBs that is, the relative position of the sub-level (sub-level), for example, offset_2 in FIG. 6A.
  • the indication information can be included in the MIB of the PBCH.
  • the indication information corresponds to the controlResourceSetZero and the MIB in the Rel-15NR. / Or the bit corresponding to subCarrierSpacingCommon. That is to say, multiplexing controlResourceSetZero and/or subCarrierSpacingCommon and/or ssb-SubcarrierOffset to indicate the above-mentioned relative position.
  • reuse controlResourceSetZero and/or subCarrierSpacingCommon to indicate the relative position of RB-level
  • reuse ssb-SubcarrierOffset to indicate the relative position of subcarrier-level.
  • the indication information may also indicate both the indication subband and the frequency domain position.
  • at least one bit in the indication information is used to indicate the channel
  • at least one other bit in the indication information is used to indicate the frequency domain position
  • the manner of indicating the channel and indicating the frequency domain position may be as described above.
  • multiple combinations of the channel and the frequency domain position may be preset, and the indication information may indicate one of the multiple combinations, so as to jointly indicate the subband and the frequency domain position.
  • the first embodiment and the second embodiment can be combined, that is, part of the parameters used to determine the frequency domain resources of the control resource set can be determined according to the frequency domain position of the first SSB, and the other part of the parameters can be determined according to the indication of the indication information.
  • the remaining part of the parameters can be predefined by the communication protocol.
  • the terminal device 202 determines the subband in which the frequency domain resource of the control resource set is located according to the frequency domain position of the first SSB, and obtains the frequency domain position of the control resource set indicated based on the reference frequency domain position according to the indication information. It is defined that the reference frequency domain position is the first synchronous raster of the subband where the control resource set is located.
  • the frequency domain position of each physical resource block of the first SSB and the frequency domain position of each physical resource block in the control resource set (CORESET) may have a fixed mapping relationship, for example, in the frequency domain.
  • the physical resource block grid (PRB grid) of the first SSB is consistent with the physical resource block grid (PRB grid) of the control resource set or has a fixed offset.
  • the network device 201 needs to send the first SSB and the control resource set (CORESET) in the above-mentioned fixed mapping relationship.
  • FIG. 7 is a schematic diagram of the corresponding relationship between the physical resource block grid of the first SSB and the physical resource block grid of the control resource set.
  • the starting frequency 701 of the physical resource block 10 and the starting frequency 702 of the physical resource block grid (PRB grid) of the control resource set are There is a fixed offset 703 between them.
  • this embodiment may not be limited to this.
  • the starting frequency 701 of the physical resource block 10 and the starting frequency 702 of the physical resource block grid (PRB grid) of the control resource set may be the same, that is,
  • the physical resource block grid (PRB grid) of the first SSB may be consistent with the physical resource block grid (PRB grid) of the control resource set.
  • the terminal device can learn the physical resource block grid (PRB grid) of the control resource set associated with the first SSB according to the physical resource block grid (PRB grid) of the first SSB. grid), and combine other information to obtain the frequency domain resources of the control resource set.
  • the other information is, for example, the channel where the start frequency of the predetermined resource of the control resource set is located, the relative position of the frequency domain position and the reference frequency position of the second predetermined resource in the control resource set, etc.
  • the other information may be preset , Or obtained through the above instructions.
  • the network device before the terminal device receives the first SSB, can indicate the frequency domain position of the first SSB and/or the PCI corresponding to the first SSB through the measurement configuration, and the network device receives the first SSB according to the measurement configuration.
  • the measurement configuration can instruct the terminal device to report the CGI related information of the cell corresponding to the PCI, and after receiving the SIB1 of the cell, report the CGI related information of the cell.
  • the terminal device when the first synchronization signal/physical broadcast channel block sent on the non-first synchronization raster is received, the PDCCH is received, and the PDCCH is used for scheduling to carry the remaining minimum system information/ The physical downlink shared channel (PDSCH) of system information block 1 (RMSI/SIB1), thus, after receiving the PDCCH, the terminal device can obtain the PDSCH scheduled by the PDCCH, and obtain the remaining minimum system information/system information carried in the PDSCH Block 1 (RMSI/SIB1).
  • PDSCH physical downlink shared channel
  • the second aspect of the embodiments of the present application relates to a signal transmission method, which is applied to a network device, such as the network device 201.
  • FIG. 8 is a schematic diagram of the signal transmission method of the second aspect of the embodiments of the present application. As shown in FIG. 8, the signal transmission method may include:
  • Operation 801 Send a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB) that is not located on the first synchronization raster; and
  • Operation 802 Send a physical downlink control channel (PDCCH), where the physical downlink control channel (PDCCH) is used to schedule a physical downlink shared channel (PDSCH) used to carry the remaining minimum system information/system information block 1 (RMSI/SIB1).
  • PDCCH physical downlink control channel
  • PDSCH physical downlink shared channel
  • the network device 201 transmits the physical downlink control channel (PDCCH) on the resources of the control resource set (CORESET) associated with the first synchronization signal/physical broadcast channel block.
  • PDCCH physical downlink control channel
  • CORESET control resource set
  • the method further includes:
  • Operation 803 The network device 201 sends a measurement configuration to the terminal device 202, so that the terminal device 202 can obtain the frequency domain position of the first synchronization signal/physical broadcast channel block according to the measurement configuration.
  • the relative position of the frequency domain position of the predetermined resource in the frequency domain resource of the control resource set (CORESET) and the frequency domain position of the first synchronization signal/physical broadcast channel block is the first predetermined value .
  • the relative position between the subband where the frequency domain resource of the control resource set (CORESET) is located and the subband where the frequency domain position of the first synchronization signal/physical broadcast channel block is located is the second predetermined Value, where the frequency domain resources of the control resource set (CORESET) are located in the same subband, and the predetermined resource of the control resource set (CORESET) is located at a predetermined position in the subband.
  • the first synchronization signal/physical broadcast channel block may carry indication information, and the indication information may be used to indicate the frequency domain position of the control resource set.
  • the indication information may indicate: the frequency domain resource of the control resource set (CORESET) or the subband where the first predetermined resource in the frequency domain resource of the control resource set is located; and/or the frequency domain resource of the control resource set (CORESET) Or the frequency domain position of the second predetermined resource in the control resource set (CORESET) in the subband.
  • the first predetermined resource and the second predetermined resource are the same or different.
  • the indication information may indicate the frequency domain resource of the control resource set (CORESET) or the index of the subband where the first predetermined resource in the control resource set (CORESET) is located.
  • the indication information may also indicate the frequency domain resource of the control resource set (CORESET) or the subband where the first predetermined resource in the control resource set (CORESET) is located and the first synchronization signal/physical broadcast channel The relative position of the subband where the block is located.
  • the indication information may also indicate the frequency domain resource of the control resource set (CORESET) or the information related to the synchronization raster corresponding to the subband where the first predetermined resource in the control resource set (CORESET) is located.
  • the indication information indicates that the frequency domain resource of the control resource set (CORESET) or the global synchronization channel number (GSCN) of the second synchronization raster in the subband where the first predetermined resource in the control resource set (CORESET) is located is the same as the first synchronization.
  • the indication information indicates the frequency domain position
  • the indication information indicates the relative position of the frequency domain position of the second predetermined resource in the control resource set (CORESET) and the reference frequency position.
  • the relative position is the number of resource blocks and/or the number of subcarriers.
  • the reference frequency position is the frequency domain position of the third predetermined resource of the first SSB, or the frequency domain position of the fourth predetermined resource of the second SSB, or the frequency of the control resource set (CORESET).
  • the reference frequency position may be a preset frequency position or a frequency position indicated by the network device 201.
  • the frequency domain position of each physical resource block of the first SSB sent by the network device 201 and the frequency domain position of each physical resource block in the control resource set (CORESET) may have a fixed mapping relationship.
  • the network device transmits the PDCCH on the control resource set associated with the first SSB, and the PDCCH Used to schedule the physical downlink shared channel (PDSCH) used to carry the remaining minimum system information/system information block 1 (RMSI/SIB1). Therefore, after receiving the PDCCH, the terminal device can obtain the PDSCH scheduled by the PDCCH and obtain The remaining minimum system information/system information block 1 (RMSI/SIB1) carried in the PDSCH.
  • PDSCH physical downlink shared channel
  • RMSI/SIB1 remaining minimum system information/system information block 1
  • the third aspect of the embodiments of the present application provides a signal transmission apparatus, which is applied to a terminal device, for example, the terminal device 202.
  • the signal transmission device is used to implement the signal transmission method described in the first aspect of the embodiment.
  • FIG. 9 is a schematic diagram of the signal transmission device in the third aspect of the embodiments of the present application. As shown in FIG. 9, the signal transmission device 900 includes a first transmission unit 901.
  • the first transmission unit 901 may implement the signal transmission method described in the first aspect of the embodiments of the present application.
  • the description of the signal transmission method implemented by the first transmission unit 901 reference may be made to the description of the signal transmission method in the first aspect of the embodiments of the present application.
  • the fourth aspect of the embodiments of the present application provides a signal transmission device, which is applied to a network device, for example, the network device 201.
  • the signal transmission device is used to implement the signal transmission method described in the second aspect of the embodiment.
  • FIG. 10 is a schematic diagram of a signal transmission device according to the fourth aspect of an embodiment of the present application. As shown in FIG. 10, the signal transmission device 1000 includes a second transmission unit 1001.
  • the second transmission unit 1001 may implement the signal transmission method described in the second aspect of the embodiments of the present application.
  • the description of the signal transmission method implemented by the second transmission unit 1001 reference may be made to the description of the signal transmission method in the second aspect of the embodiment of the present application.
  • a fifth aspect of the embodiments of the present application provides a terminal device, which includes the signal transmission apparatus 900 described in the third aspect of the embodiment.
  • FIG. 11 is a schematic block diagram of the system configuration of the terminal device 1100 in the fifth aspect of the embodiments of the present application.
  • the terminal device 1100 may include a processor 1110 and a memory 1111; the memory 1111 is coupled to the processor 1110. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.
  • the function of the signal transmission device 900 may be integrated into the processor 1110.
  • the processor 1110 may be configured to be able to implement the signal transmission method of the first aspect of the embodiment.
  • the signal transmission device 900 can be configured separately from the processor 1110.
  • the signal transmission device 900 can be configured as a chip connected to the processor 1110, and the signal transmission device can be realized by the control of the processor 1110. 900 features.
  • the terminal device 1100 may further include: a communication module 1130, an input unit 1140, a display 1150, and a power supply 1160. It is worth noting that the terminal device 1100 does not necessarily include all the components shown in FIG. 11; in addition, the terminal device 1100 may also include components not shown in FIG. 11, and reference may be made to the prior art.
  • the processor 1110 is sometimes called a controller or an operating control, and may include a microprocessor or other processor devices and/or logic devices.
  • the processor 1110 receives input and controls the operation of the various components of the terminal device 1100. operating.
  • the memory 1120 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices.
  • Various data can be stored, in addition to the program that executes related information.
  • the processor 1110 can execute the program stored in the memory 1120 to implement information storage or processing.
  • the functions of other components are similar to the existing ones, so I won't repeat them here.
  • the components of the terminal device 1100 may be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present application.
  • a sixth aspect of the embodiments of the present application provides a network device, which includes the signal transmission apparatus 1000 described in the fourth aspect of the embodiment.
  • FIG. 12 is a schematic diagram of a structure of a network device according to an embodiment of the present application.
  • the network device 1200 may include: a processor (processor) 1210 and a memory 1220; the memory 1220 is coupled to the processor 1210.
  • the memory 1220 can store various data; in addition, it also stores an information processing program 1230, and executes the program 1230 under the control of the processor 1210 to receive various information sent by the user equipment and send request information to the user equipment.
  • the function of the signal transmission device 1000 may be integrated into the processor 1210.
  • the processor 1210 may be configured to implement the signal transmission method described in the second aspect of the embodiments of the present application.
  • the signal transmission device 1000 can be configured separately from the processor 1210.
  • the signal transmission device 1000 can be configured as a chip connected to the processor 1210, and the signal transmission device can be realized by the control of the processor 1210. 1000 features.
  • the network device 1200 may further include: a transceiver 1240, an antenna 1250, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 1200 does not necessarily include all the components shown in FIG. 12; in addition, the network device 1200 may also include components not shown in FIG. 12, and reference may be made to the prior art.
  • the seventh aspect of the embodiments of the present application further provides a communication system, including the network device described in the sixth aspect of the embodiment and the terminal device described in the fifth aspect of the embodiment.
  • the above devices and methods of this application can be implemented by hardware, or can be implemented by hardware combined with software.
  • This application relates to such a computer-readable program.
  • the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various methods. Or steps.
  • This application also relates to storage media used to store the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.
  • the method/device described in conjunction with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figure may correspond to each software module of the computer program flow or each hardware module.
  • These software modules can respectively correspond to the steps shown in the figure.
  • These hardware modules can be implemented by solidifying these software modules by using a field programmable gate array (FPGA), for example.
  • FPGA field programmable gate array
  • the software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may be located in the ASIC.
  • the software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can be implemented as general-purpose processors, digital signal processors (DSPs) for performing the functions described in this application. ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof.
  • DSPs digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, or multiple micro-processing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
  • a signal transmission method applied to terminal equipment including:
  • a physical downlink control channel (PDCCH) is received, and the physical downlink control channel (PDCCH) is used for scheduling a physical downlink shared channel (PDSCH) for carrying the remaining minimum system information/system information block 1 (RMSI/SIB1).
  • PDSCH physical downlink shared channel
  • the terminal device Before receiving the physical downlink control channel, the terminal device determines that it is used according to the frequency domain position of the first synchronization signal/physical broadcast channel block and/or the indication information carried by the first synchronization signal/physical broadcast channel block Sending the control resource set of the physical downlink control channel.
  • the relationship between the control resource set and the frequency domain position of the first SSB is predefined.
  • the relative position between the subband where the frequency domain resources of the control resource set (CORESET) is located and the subband where the frequency domain position of the first synchronization signal/physical broadcast channel block is located is a second predetermined value
  • the frequency domain resources of the control resource set are located in the same subband, and the predetermined resources of the control resource set (CORESET) are located at a predetermined position in the subband.
  • the predetermined positions of the predetermined resources of the control resource set are the same or different.
  • the predetermined positions of the predetermined resources of the control resource set are the same or different.
  • the indication information is used to indicate the frequency domain position of the control resource set.
  • the indication information indicates the frequency domain position of the control resource set based on the reference frequency domain position.
  • the instruction information indicates:
  • the frequency domain resources of the control resource set (CORESET) or the subband where the first predetermined resource in the frequency domain resources of the control resource set is located; and/or
  • the first predetermined resource and the second predetermined resource are the same or different.
  • the indication information indicates the frequency domain resource of the control resource set (CORESET) or the index of the subband where the first predetermined resource in the control resource set (CORESET) is located; or
  • the indication information indicates the frequency domain resources of the control resource set (CORESET) or the subband where the first predetermined resource in the control resource set (CORESET) is located and the first synchronization signal/physical broadcast channel block The relative position of the subband where the frequency domain position of the is located; or
  • the indication information indicates the frequency domain resource of the control resource set (CORESET) or the information related to the synchronization raster in the subband where the first predetermined resource in the control resource set (CORESET) is located.
  • the indication information indicates the frequency domain resource of the control resource set (CORESET) or the global synchronization channel number (GSCN) of the second synchronization raster in the subband where the first predetermined resource is located and the first synchronization signal/ The offset value between the global synchronization channel number (GSCN) of the second synchronization raster corresponding to the physical broadcast channel block.
  • CORESET control resource set
  • GSCN global synchronization channel number
  • the indication information indicates the relative position of the frequency domain position and the reference frequency position of the second predetermined resource in the control resource set (CORESET).
  • the reference frequency position is predefined or indicated by the network device.
  • the reference frequency position is the frequency domain position of the third predetermined resource of the first SSB, or the frequency domain position of the fourth predetermined resource of the second SSB, or the frequency domain resource of the control resource set (CORESET) Or the frequency position of the first synchronization grating in the subband where the second predetermined resource in the frequency domain resources of the control resource set is located.
  • the relative position is the number of resource blocks and/or the number of subcarriers.
  • the frequency domain position of each physical resource block of the first SSB has a fixed mapping relationship with the frequency domain position of each physical resource block in the control resource set (CORESET).
  • a signal transmission method applied to network equipment including:
  • a physical downlink control channel (PDCCH) is sent, and the physical downlink control channel (PDCCH) is used to schedule a physical downlink shared channel (PDSCH) used to carry the remaining minimum system information/system information block 1 (RMSI/SIB1).
  • PDSCH physical downlink shared channel
  • the physical downlink control channel (PDCCH) is sent on the resources of the control resource set (CORESET) associated with the first synchronization signal/physical broadcast channel block.
  • CORESET control resource set
  • the network device sends a measurement configuration to a terminal device, and the measurement configuration instructs the terminal device to obtain the frequency domain position of the first synchronization signal/physical broadcast channel block.
  • the relative position of the frequency domain position of the predetermined resource in the frequency domain resources of the control resource set (CORESET) and the frequency domain position of the first synchronization signal/physical broadcast channel block is a first predetermined value.
  • the relative position between the subband where the frequency domain resources of the control resource set (CORESET) is located and the subband where the frequency domain position of the first synchronization signal/physical broadcast channel block is located is a second predetermined value
  • the frequency domain resources of the control resource set are located in the same subband, and the predetermined resources of the control resource set (CORESET) are located at a predetermined position in the subband.
  • the predetermined positions of the predetermined resources of the control resource set are the same or different.
  • the predetermined positions of the predetermined resources of the control resource set are the same or different.
  • the first synchronization signal/physical broadcast channel block carries indication information, and the indication information is used to indicate the frequency domain position of the control resource set.
  • the instruction information indicates:
  • the frequency domain resources of the control resource set (CORESET) or the subband where the first predetermined resource in the frequency domain resources of the control resource set is located; and/or
  • the first predetermined resource and the second predetermined resource are the same or different.
  • the indication information indicates the frequency domain resource of the control resource set (CORESET) or the index of the subband where the first predetermined resource in the control resource set (CORESET) is located; or
  • the indication information indicates the frequency domain resources of the control resource set (CORESET) or the subband where the first predetermined resource in the control resource set (CORESET) is located and the first synchronization signal/physical broadcast channel block The relative position of the subband; or
  • the indication information indicates the frequency domain resource of the control resource set (CORESET) or the information related to the synchronization raster corresponding to the subband where the first predetermined resource in the control resource set (CORESET) is located.
  • the indication information indicates the frequency domain resources of the control resource set (CORESET) or the number of global synchronization channels of the second synchronization raster in the subband where the first predetermined resource in the control resource set (CORESET) is located ( GSCN) the offset value between the global synchronization channel number (GSCN) of the second synchronization raster corresponding to the first synchronization signal/physical broadcast channel block.
  • the indication information indicates the relative position of the frequency domain position and the reference frequency position of the second predetermined resource in the control resource set (CORESET).
  • the network device indicates the reference frequency position.
  • the reference frequency position is the frequency domain position of the third predetermined resource of the first SSB, or the frequency domain position of the fourth predetermined resource of the second SSB, or the frequency domain resource of the control resource set (CORESET) Or the frequency position of the first synchronization grating in the subband where the second predetermined resource in the frequency domain resources of the control resource set is located.
  • the relative position is the number of resource blocks and/or the number of subcarriers.
  • the frequency domain position of each physical resource block of the first SSB sent by the network device and the frequency domain position of each physical resource block in the control resource set (CORESET) have a fixed mapping relationship.

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Abstract

本申请提供一种信号的传输方法、装置和通信系统。该装置包括第一传输单元，所述第一传输单元被配置为：接收第一同步信号/物理广播信道块(SS/PBCH block,SSB)，所述第一同步信号/物理广播信道块不位于第一同步光栅上；以及接收物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。

Description

信号的传输方法、装置和通信系统 技术领域
本申请实施例涉及无线通信技术领域。
背景技术
在现有的通信协议(例如，Rel-15NR)中，针对0～100GHz的频率范围定义了同步/频率光栅(Global Synchronization/frequency Raster)，或者同步光栅(Synchronization raster/SS raster)。同步光栅表征了终端设备在没有接收到指示同步信号/物理广播信道块(SS/PBCH block)(或者称为Synchronization Signal Block,SS block,SSB)位置的显示信令的情况下，可以用于获取系统相关信息的同步信号/物理广播信道块的频率位置，一个频率位置对应一个全球同步信道数(Globla Synchronization Channel Number，GSCN)。在此基础上，针对部分NR工作频带(Operating band)分别定义了GSCN的取值范围，也即，定义了相应的可用的同步光栅。
非授权频段是频谱资源的重要组成部分，目前已经有很多系统支持在非授权频段工作，例如WiFi，长期演进(LTE，Long Term Evolution)授权频谱辅助接入(LAA，License Assisted Access)等。但是，目前新无线(NR，New Radio)系统还不支持在非授权频段工作。
应该注意，上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
在时域上，一个SSB可以包括4个符号(symbol)；在频域上，一个SSB可以包括240个子载波，或者说，包括20个RB，每个RB包括12个子载波。图1A是一个SSB的时频域结构示意图。从频域上看，一个SSB可以位于同步光栅上，或者不位于同步光栅上。若一个SSB的子载波与一个同步光栅满足预定义的映射关系，则 该SSB位于该同步光栅上，反之，若SSB的子载波没有与一个同步光栅满足该预定义的映射关系，则该SSB不位于同步光栅上。该预定义的映射关系例如是指同步光栅与SSB的一个特定的子载波是对应的，该特定的子载波是预定义的。例如图1B所示，该特定的子载波是SSB的第121个子载波，或者说，是SSB的第10个PRB的第1个子载波。其中，预定义是指在通信协议中定义的。
本申请的发明人发现，现有的NR系统设计中，如果一个SSB不位于同步光栅上，由于其主要用于终端设备进行测量，不用于小区选择或重选，无需终端设备根据该SSB接收SIB1。但是，本申请的发明人进一步发现，随着NR系统的进一步演进，需要终端设备根据不位于同步光栅上的SSB接收SIB1。
本申请实施例提供一种信号的传输方法、装置和通信系统，不位于同步光栅上的第一同步信号/物理广播信道块与控制资源集合相关联，该控制资源集合用于发送PDCCH，该PDCCH用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)，由此，终端设备在接收该PDCCH后能够获得该PDCCH调度的PDSCH，并获得PDSCH中承载的剩余最小系统信息/系统信息块1(RMSI/SIB1)。
根据本申请实施例的第一方面，提供了一种信号的传输方法，应用于终端设备，该方法包括：接收第一同步信号/物理广播信道块(SS/PBCH block,SSB)，所述第一同步信号/物理广播信道块不位于第一同步光栅上；以及接收物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
根据本申请实施例的第二方面，提供了一种信号的传输方法，应用于网络设备，该方法包括：发送不位于第一同步光栅上的第一同步信号/物理广播信道块(SS/PBCH block,SSB)；以及发送物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
根据本申请实施例的第三方面，提供了一种信号的传输装置，应用于终端设备，该装置执行本申请实施例的第一方面的信号的传输方法。
根据本申请实施例的第四方面，提供了一种信号的传输装置，应用于网络设备， 该装置执行本申请实施例的第二方面的信号的传输方法。
根据本申请实施例的第五方面，提供了一种终端设备，其具有本申请实施例的第三方面所述的信号的传输装置。
根据本申请实施例的第六方面，提供了一种网络设备，其具有本申请实施例的第四方面所述的信号的传输装置。
根据本申请实施例的第七方面，提供了一种通信系统，其具有本申请实施例的第六方面所述的终端设备以及第七方面所述的网络设备。
根据本申请实施例的第八方面，提供了一种计算机可读程序，其中当在信号的传输装置或终端设备中执行所述程序时，所述程序使得所述信号的传输装置或终端设备执行本申请实施例的第一方面的信号的传输方法。
根据本申请实施例的第九方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信号的传输装置或终端设备执行本申请实施例的第一方面所述的信号的传输方法。
根据本申请实施例的第十方面，提供了一种计算机可读程序，其中当在信号的传输装置或网络设备中执行所述程序时，所述程序使得所述信号的传输装置或网络设备执行本申请实施例的第二方面所述的信号的传输方法。
根据本申请实施例的第十一方面，提供了一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得信号的传输装置或网络设备执行本申请实施例的第二方面所述的信号的传输方法。
本申请实施例的有益效果在于：不位于同步光栅上的第一同步信号/物理广播信道块与控制资源集合相关联，该控制资源集合用于发送PDCCH，该PDCCH用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)，由此，终端设备接收该PDCCH后能够获得该PDCCH调度的PDSCH，并获得PDSCH中承载的剩余最小系统信息/系统信息块1(RMSI/SIB1)。
参照后文的说明和附图，详细公开了本申请的特定实施方式，指明了本申请的原理可以被采用的方式。应该理解，本申请的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的 特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1A是SSB时频域结构的一个示意图；
图1B是SSB位于同步光栅上的一个示意图；
图1C是一个工作频带内的子带划分的一个示例；
图1D是第一同步光栅与子带的位置关系的一个示意图；
图2是本申请实施例的通信系统的一示意图；
图3是本申请实施例的第一方面的信号的传输方法的一个示意图；
图4是第一同步光栅和第二同步光栅的一个示意图；
图5是第一SSB与第二同步光栅的对应关系的一个示意图；
图6A是参考频率位置的一个示意图；
图6B是指示信息基于CRB指示控制资源集合的频域位置的一个示意图；
图7是第一SSB的物理资源块网格与控制资源集合的物理资源块网格对应关系的一个示意图；
图8是本申请实施例的第二方面的信号的传输方法的一个示意图；
图9是本申请实施例的第三方面的信号的传输装置的一个示意图；
图10是本申请实施例的第四方面的信号的传输装置的一个示意图；
图11是本申请实施例的第五方面的终端设备的系统构成的一示意框图；
图12是本申请实施例的第六方面的网络设备的一构成示意图。
具体实施方式
参照附图，通过下面的说明书，本申请的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本申请的特定实施方式，其表明了其中可以采用本申请的原则的部分实施方式，应了解的是，本申请不限于所描述的实施方式，相反，本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。下面结合附图对本申请的各种实施方式进行说明。这些实施方式只是示例性的，不是对本申请的限制。
在本申请实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本申请实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及未来的5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base  Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，这取决于使用该术语的上下文。
在本申请实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备。用户设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，用户设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，用户设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
以下通过示例对本申请实施例的场景进行说明，但本申请不限于此。
图2是本申请实施例的通信系统的一示意图，示意性说明了以终端设备和网络设备为例的情况，如图2所示，通信系统200可以包括网络设备201和终端设备202(为简单起见，图2仅以一个终端设备为例进行说明)。
在本申请实施例中，网络设备201和终端设备202之间可以进行现有的业务或者未来可实施的业务。例如，这些业务包括但不限于：增强的移动宽带(eMBB，enhanced Mobile Broadband)、大规模机器类型通信(mMTC，massive Machine Type Communication)和高可靠低时延通信(URLLC，Ultra-Reliable and Low-Latency Communication)，等等。
其中，终端设备202可以向网络设备201发送数据，例如使用免授权传输方式。网络设备201可以接收一个或多个终端设备202发送的数据，并向终端设备202反馈信息(例如确认ACK/非确认NACK)信息，终端设备202根据反馈信息可以确认结束传输过程、或者还可以再进行新的数据传输，或者可以进行数据重传。
以下以将通信系统中的网络设备作为接收端、将终端设备作为发送端为例进行说明，但本申请不限于此，发送端和/或接收端还可以是其他的设备。例如，本申请不仅适用于网络设备和终端设备之间的上行免授权传输，还可以适用于两个终端设备之间的边链路免授权传输。
本申请涉及的缩写相应的英文和中文名称如下：
CORESET Control resource set：控制资源集合
CRB Common resource block：公共资源块
PRB Physical resource block：物理资源块(其与RB在一些情况下可以互换/等价)
RB resource block：资源块
RE Resource Element：资源元素
BWP Bandwidth part：带宽部分
DCI Downlink control Information：下行控制信息
PDCCH Physical downlink control channel：物理下行控制信道
PDSCH Physical downlink shared channel：物理下行共享信道
PBCH Physical broadcast channel：物理广播信道
DM-RS Demodulation reference signal：解调参考信号
PSS Primary synchronization signal：主同步信号
SSS Secondary synchronization signal：辅同步信号
L1 Layer 1：层1(物理层)
SSB Synchronization Signal Block,or SS/PBCH block：同步信号块，或同步信号/物理广播信道块
PLMN Public Land Mobile Network：公共陆地移动网络
SIB System Information Block：系统信息块
SIB1(SIB1 is also referred to as Remaining Minimum System Information(RMSI)： 系统信息块1，系统信息块1也称为剩余最小系统信息
GSCN Global Synchronization Channel Number：全球同步信道数
NR New Radio：新空口
NR-ARFCN NR Absolute Radio Frequency Channel Number：新空口-绝对射频频率信道数
SCS Sub-Carrier Spacing：子载波间隔
FR Frequency Range：频率范围
Cell-Defining SSB(CD-SSB)is an SSB with an RMSI associated：小区定义SSB，是与RMSI关联的SSB
CORESET#0：控制资源集合CORESET#0至少用于SIB1调度的控制资源集合。
在本申请实施例的各方面中，“预定的”参数或“预设的”参数可以指在通信协议中进行预先定义或设定的参数。
在本申请实施例的各方面中，获知、确定、判断等词语含义相近，在一些情况下可以替换。
实施例的第一方面
本申请实施例的第一方面涉及一种信号的传输方法，应用于终端设备，例如终端设备202。
图3是本申请实施例的第一方面的信号的传输方法的一个示意图，如图3所示，该信号的传输方法可以包括：
操作301、接收第一同步信号/物理广播信道块(SS/PBCH block,SSB)，所述第一同步信号/物理广播信道块不位于第一同步光栅上；以及
操作302、接收物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
根据本申请实施例的第一方面，在接收到不位于第一同步光栅上的第一同步信号/物理广播信道块的情况下，接收PDCCH，该PDCCH用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)，由此，终端设备在接收该PDCCH之后，能够获得该PDCCH调度的PDSCH，并获得PDSCH中承 载的剩余最小系统信息/系统信息块1(RMSI/SIB1)。
随着NR系统的进一步演进，在一些场景下，需要终端设备根据不位于同步光栅上的SSB接收SIB1。
例如，NR系统可能支持在非授权频段工作(NR_U)。在非授权频段上，相同信道上可能独立部署多个运营商的网络，不同运营商网络之间可能出现PCI混乱/冲突(confusion/collision)问题。该问题的一种可能解决方案是，网络设备指示终端设备测量并上报小区的CGI相关信息，该CGI相关信息至少包括运营商相关信息，例如公共陆地移动网络标识(PLMN ID)等。一个小区的CGI相关信息在SIB1中发送，若一个小区的SSB不位于同步光栅上，为了使终端设备能够获取并上报该小区的CGI相关信息，需要终端设备根据不位于同步光栅上的SSB接收该小区的SIB1。
由于SIB1是由PDSCH承载的，而PDSCH是由PDCCH调度的，为了使终端设备能够接收该小区的SIB1，终端设备需要获知用于调度用于承载SIB1的PDSCH的PDCCH的相关信息，例如，用于发送该PDCCH的控制资源集合，才能监听并接收该PDCCH，进而接收PDSCH。因此，若终端设备要根据不位于同步光栅上的SSB接收SIB1，该终端设备至少需要根据该SSB获知上述的控制资源集合。
在本申请实施例的第一方面中，由于Rel-15中仅支持NR系统在授权频段上工作，现有的关于NR系统的协议中尚未针对非授权频段的工作频带定义相应的可用的同步光栅。因此，为了支持NR系统在非授权频段上工作，需要为非授权频段的工作频带定义相应的可用的同步光栅。为了降低终端设备在没有接收到指示SSB位置的显示信令的情况下接收SSB的复杂度，可以定义较少的可用的同步光栅。为便于描述，以下将在非授权频段的工作频带中定义的该可用的同步光栅称为第一同步光栅。一个工作频带可以包括一个或多个子带，不同子带的带宽相同或不同。其中，一个子带(sub-band)中例如预定义X(e.g.X＝1)个第一同步光栅。一个第一同步光栅可以与下述的一个第二同步光栅的频率位置相同或不同。相邻的两个第一同步光栅之间的间隔例如为Y(Y例如为1.44的整数倍)MHz。
假设一个非授权频段的工作频带(例如，n46)对应的频率范围是F1(例如，5150)～F2(例如，5925)MHz。以该工作频带为例，图1C是一个工作频带内的子带划分的一个示例。在图1C中，多个子带的带宽相同，一个子带的带宽为20MHz。
图1D是第一同步光栅与子带的位置关系的一个示意图，一个子带中预定义了1 个第一同步光栅100。
Rel-15NR中，针对0～100GHz的频率范围定义的同步光栅(即，第二同步光栅)如表1所示。根据表1，在该工作频带对应的频率范围内，相邻两个第二同步光栅之间的间隔为1.44MHz。
表1：
Figure PCTCN2019109264-appb-000001
图4是第一同步光栅和第二同步光栅的位置关系一个示意图。以频率范围为5150～5170MHz的子带为例，该子带中的第二同步光栅的各频率位置及相应的GSCN如图4所示。该子带中预定义了1个第一同步光栅401，该第一同步光栅401的频率位置与对应于GSCN＝8996的第二同步光栅中的频率位置相同。也就是说，对应于GSCN＝8996的第二同步光栅是该子带中的第一同步光栅。
在本申请实施例的第一方面中，第一同步信号/物理广播信道块(SSB)不位于第一同步光栅上，是指：该第一SSB子载波没有与第一同步光栅满足预定义的映射关系。该预定义的映射关系例如是指第一同步光栅与第一SSB的一个特定的子载波是对应的，该特定的子载波是预定义的。
在本申请实施例的第一方面中，该控制资源集合用于发送用于调度承载RMSI/SIB1的PDCCH的控制资源集合(或者说，该控制资源集合是Type0-PDCCH CSS set的控制资源集合)。，该控制资源集合为CORESET#0。该控制资源集合包括时域资源和频域资源，例如，该控制资源集合时域上包括1个或2个符号；该控制资源集合在频域上包括48个(子载波间隔SCS为30KHz的情况)或96个(子载波间隔SCS为15KHz的情况)物理资源块，此外，该控制资源集合在频域上的资源也可以用子载波来表示。终端设备202需要至少获知控制资源集合的频域资源的位置，才能 根据该频域资源接收该控制资源集合发送的PDCCH。
在本申请实施例的第一方面中，该控制资源集合与第一同步信号/物理广播信道块相关联，可以表为：
在本申请实施例的第一方面中，如图3所示，该方法还包括：
操作303、终端设备202在接收该物理下行控制信道之前，根据第一同步信号/物理广播信道块的频域位置和/或第一同步信号/物理广播信道块承载的指示信息确定用于发送物理下行控制信道的控制资源集合。
在本申请实施例的第一方面中，用于发送用于调度承载RMSI/SIB1的PDCCH的PDCCH的控制资源集合与第一同步信号/物理广播信道块相关联，由此，终端设备202能够根据该第一同步信号/物理广播信道块(SSB)来确定发送该物理下行控制信道的控制资源集合。
下面，根据不同的实施方式，对操作303的实施方式进行说明。
实施方式一、
终端设备202根据第一同步信号/物理广播信道块的频域位置确定用于发送物理下行控制信道的控制资源集合。
下面，对实施方式一进行说明。
在至少一个实施例中，控制资源集合与第一SSB的频域位置关系是预定义的。例如，控制资源集合(CORESET)的频域资源中预定资源(即，预定义的资源)与第一同步信号/物理广播信道块的频域资源中的预定资源(即，预定义的资源)的相对位置或偏移是第一预定值(即，预定义的值)。由此，终端设备可以根据第一同步信号/物理广播信道块的频域位置，以及该第一预定值，确定出控制资源集合(CORESET)的频域资源中预定资源的频域位置。
其中，控制资源集合的频域资源中的该预定资源可以是：控制资源集合中的第n个资源块或子载波，n为自然数，例如，控制资源集合中的第一个子载波。第一同步信号/物理广播信道块的频域资源中的预定资源可以是：第一SSB中第k个资源块或子载波，k为自然数，例如，第一SSB中的第一个子载波。在至少另一个实施例中，控制资源集合在一个子带中的频域位置是预定义的，并且，控制资源集合所在的子带与第一SSB所在的子带的位置关系是预定义的。由此，终端设备可以根据第一SSB 所在的子带确定控制资源集合所在的子带，并且，由于控制资源集合在一个子带中的频域位置是预定义的，因此终端设备可以在确定出的该子带中进一步确定出控制资源集合的频域位置。
其中，第一SSB所在的子带是第一SSB的频域资源或者第一SSB的频域资源中的预定资源所在的子带。该预定资源例如是：第一SSB中第s个资源块或子载波，s为自然数，例如，中间的子载波，即第121个子载波，或者PRB 10的第一个子载波。控制资源集合所在的子带与第一SSB所在的子带之间的相对位置或偏移是第二预定值(即，预定义的值)，例如，该第二预定值可以等于0，即，控制资源集合所在的子带为第一SSB所在的子带。控制资源集合在一个子带内的频域位置可以被预定义为如下的位置：与该一个子带中的第一同步光栅的频域位置相关的一个频域位置，例如，该相关的一个频域位置可以是该第一同步光栅的频域位置加上或减去一个预定值所得到的一个频域位置；或者，与该一个子带中的第一同步光栅上的第二SSB的频域资源相关的一个频域位置，其中，该第二SSB位于该一个子带中的该第一同步光栅上，例如，该相关的一个频域位置可以是该第二SSB的频域资源加上或减去一个预定值所得到的一个频域位置。
实施方式二、
终端设备202根据第一同步信号/物理广播信道块承载的指示信息确定用于发送所述物理下行控制信道的控制资源集合。
下面，对实施方式二进行说明。
在实施方式二中，指示信息用于指示该控制资源集合(例如，CORESET#0)的频域位置。
该指示信息可以被承载于第一同步信号/物理广播信道块中，例如，被承载于第一同步信号/物理广播信道块中的第一同步信号/物理广播信道块中的主同步信号(PSS)，和/或辅同步信号(SSS)，和/或物理广播信道(PBCH)，和/或物理广播信道解调参考信号(PBCH DMRS)中。
在实施方式二的各实施例中，指示信息可以指示子带和/或频率位置。
在具体实施方式中，指示信息可以指示：控制资源集合(CORESET)的频域资源或控制资源集合的频域资源中的第一预定资源所在的子带；和/或，控制资源集合 (CORESET)的频域资源或控制资源集合(CORESET)的频域资源中的第二预定资源的频域位置。其中，第一预定资源可以用资源块或子载波来表示，第二预定资源可以用资源块或子载波来表示，第一预定资源和第二预定资源可以相同或不同。
在至少一个实施例中，在指示信息指示子带的情况下，终端设备可以根据该指示信息确定该控制资源集合(CORESET)的频域资源所处的子带。由此，终端设备可以结合该控制资源集合(CORESET)的频域资源在一个子带内的频域位置，确定该控制资源集合的频域资源。例如，控制资源集合的第一预定资源在所处子带内的频域位置是预设位置(即，频域位置被预先设定)，或者是由指示信息指示的频域位置。
在至少一个实施例中，在指示信息指示子带的情况下，指示信息可以指示控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的该第一预定资源所在的子带的索引，例如，该子带的索引可以被表示为一个数值。
在至少一个实施例中，在指示信息指示信道的情况下，指示信息也可以指示该控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第一预定资源所在的子带与第一同步信号/物理广播信道块的频域位置所在的信道的相对位置，其中，第一同步信号/物理广播信道块(SSB)的频域位置可以如实施方式一所述，例如，是该第一SSB中第k个资源块或子载波的频域位置，k为自然数；
在至少一个实施例中，在指示信息指示子带的情况下，指示信息可以指示控制资源集合(CORESET)的频域资源或该控制资源集合(CORESET)中的第一预定资源的信道中的同步光栅相关的信息。
例如，该指示信息可以指示控制资源集合(CORESET)中的频域资源或第一预定资源所在的信道中的第二同步光栅的全球同步信道数(GSCN)与第一同步信号/物理广播信道块对应的第二同步光栅的全球同步信道数(GSCN)之间的偏移值。
图5是第一SSB与第二同步光栅的对应关系的一个示意图。如图5所示，第一SSB没有被发送于第一同步光栅500，但是，第一SSB的资源块10的第一个子载波与第二同步光栅501的频率相同，即，第一SSB位于第二同步光栅501，因此，第二同步光栅501是第一SSB对应的第二同步光栅。控制资源集合的第一预定资源(例如，资源块0)所在的子带502中，具有第二同步光栅503。
终端设备根据第二同步光栅501的GSCN和上述偏移值，能够得到第二同步光栅503的GSCN，根据第二同步光栅503的GSCN能够确定第二同步光栅503的频率 位置。由于子带的频率范围是预先设定的，因此，终端设备可以根据第二同步光栅503的频率位置确定第二同步光栅503所处的子带502，信道502即是控制资源集合的第一预定资源所在的子带。
在至少一个实施例中，在指示信息指示频率位置的情况下，终端设备可以根据该指示信息确定该控制资源集合(CORESET)中的第二预定资源的频域位置。
例如，指示信息可以指示控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位置。
其中，该参考频率位置可以是预定义的频率位置或者由网络设备201向终端设备202指示的频率位置。
在至少一个实施例中，参考频率位置可以是第一SSB的第三预定资源的频域位置，例如，第三预定资源是第一SSB的频域资源中的第m个资源块或子载波，第三预定资源的频域位置是该第三预定资源的频域位置，m为自然数。
在至少一个实施例中，参考频率位置也可以是第二SSB的第四预定资源的频域位置，例如，该第四预定资源可以是第二SSB的频域资源中的第L个资源块或子载波，L为自然数。在一个具体实施方式中，第二SSB的第四预定资源的频域位置是预定义的频域位置，或者，该第二SSB的第四预定资源的频域位置可以由网络设备201指示，例如，通过该指示信息来指示。
在至少一个实施例中，参考频率位置也可以是控制资源集合(CORESET)的频域资源(所有频域资源在一个信道内)或该控制资源集合的频域资源中的第二预定资源所在的子带中的第一同步光栅的频率位置。在一个具体实施方式中，该子带中的第一同步光栅的频率位置可以是预定义的频率位置，或者，该子带中的第一同步光栅的频率位置可以由网络设备201指示，例如，通过该指示信息来指示。
图6A是参考频率位置的一个示意图。如图6A所示，参考频率位置601可以是第一SSB中的第1个资源块(例如，资源块0)或子载波的频域位置。参考频率位置602是第二SSB的第1个资源块(例如，资源块0)或子载波的频域位置。参考频率位置603是控制资源集合(CORESET)的频域资源中的第1个资源块(例如，资源块0)或子载波所在的信道600中的第一同步光栅604的频率位置。
在图6A中，参考频率位置可以是601、602、603中的一个。指示信息可以指示控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位 置。例如，参考频率位置是602的情况下，指示信息T可以指示参考频率位置602与控制资源集合(CORESET)中的第二预定资源的频域位置605(例如，第1个资源块或子载波的频域位置)之间的相对位置。
在至少一个实施例中，指示信息所指示的相对位置包括RB级别(RB-level)的相对位置和/或子载波级别(subcarrier-level)的相对位置，例如可以是资源块的数量和/或子载波的数量，例如，相对位置可以是K1个资源块，K2个子载波或K3个资源块加K4个子载波。
在一个具体实施方式中，指示信息可以基于CRB指示控制资源集合的频域位置。图6B是指示信息基于CRB指示控制资源集合的频域位置的一个示意图。如图6B所示，该指示信息指示控制资源集合的第一个RB对应的RB索引(index)和与第二SSB的第一个RB交叠的第一个CRB对应的RB index之间的偏移，即，RB-level的相对位置，例如图6A中的offset_1；和/或，该指示信息指示与第二SSB的第一个RB交叠的第一个CRB的第一个子载波与第二SSB的第一个子载波之间的偏移，即，子载波级别(sub-level)的相对位置，例如，图6A的offset_2。
另一方面，该指示信息可以包含于PBCH的MIB中，为了尽可能减小对现有通信协议的修改，从而降低产品生产周期和成本，该指示信息例如对应Rel-15NR中的MIB的controlResourceSetZero和/或subCarrierSpacingCommon所对应的比特。也就是说，复用controlResourceSetZero和/或subCarrierSpacingCommon和/或ssb-SubcarrierOffset指示上述相对位置。例如，复用controlResourceSetZero和/或subCarrierSpacingCommon指示RB-level的相对位置，复用ssb-SubcarrierOffset指示subcarrier-level的相对位置，
在实施方式二中，指示信息也可以对指示子带和频域位置二者进行指示。例如，指示信息中的至少一个比特位用来指示信道，指示信息中的另外的至少一个比特位用来指示频域位置，指示信道和指示频域位置的方式可以如上所述。又例如，可以预先设定信道与频域位置的多个组合，指示信息可以指示该多个组合中的一者，从而对子带和频域位置进行联合指示。
在本申请中，实施方式一和实施方式二可以结合，即，用于确定控制资源集合的频域资源的部分参数可以根据第一SSB的频域位置确定，另一部分参数可以根据指示信息的指示来确定，此外，剩余的部分参数可以由通信协议预先定义。例如，终端 设备202根据第一SSB的频域位置确定控制资源集合的频域资源所处的子带，根据指示信息得到基于参考频域位置所指示的控制资源集合的频域位置，其中，预先定义该参考频域位置是控制资源集合所在的子带的第一同步光栅。
在实施方式一和实施方式二中，第一SSB的各物理资源块的频域位置与控制资源集合(CORESET)中的各物理资源块的频域位置可以具有固定的映射关系，例如，在频域上，第一SSB的物理资源块网格(PRB grid)与控制资源集合的物理资源块网格(PRB grid)保持一致或具有固定的偏移。其中，网络设备201需要以上述的固定的映射关系来发送第一SSB和控制资源集合(CORESET)。
图7是第一SSB的物理资源块网格与控制资源集合的物理资源块网格对应关系的一个示意图。如图7所示，在第一SSB的物理资源块网格(PRB grid)中，物理资源块10的起始频率701与控制资源集合的物理资源块网格(PRB grid)的起始频率702之间具有固定的偏移703。
此外，本实施例可以不限于此，例如，在图7中，物理资源块10的起始频率701与控制资源集合的物理资源块网格(PRB grid)的起始频率702可以相同，即，第一SSB的物理资源块网格(PRB grid)与控制资源集合的物理资源块网格(PRB grid)可以保持一致。
由此，在收到第一SSB的情况下，终端设备就可以根据第一SSB的物理资源块网格(PRB grid)获知与该第一SSB关联的控制资源集合的物理资源块网格(PRB grid)，并且，结合其他信息得到控制资源集合的频域资源。该其它信息例如是，控制资源集合的预定资源的起始频率所在的信道，控制资源集合中的第二预定资源的频域位置与参考频率位置的相对位置等，该其它信息可以是预先设定的，或者是通过上述的指示信息指示得到的。
在本申请实施例的第一方面，在终端设备接收第一SSB之前，网络设备可以通过测量配置指示第一SSB的频域位置和/或第一SSB对应的PCI，网络设备根据该测量配置接收第一SSB。并且该测量配置可以指示终端设备上报该PCI对应的小区的CGI相关信息，接收到该小区的SIB1之后，上报该小区的CGI相关信息。
根据本申请实施例的第一方面，在接收到非第一同步光栅上发送的第一同步信号/物理广播信道块的情况下，接收PDCCH，该PDCCH用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)，由此，终端设 备在接收该PDCCH之后，能够获得该PDCCH调度的PDSCH，并获得PDSCH中承载的剩余最小系统信息/系统信息块1(RMSI/SIB1)。
实施例的第二方面
本申请实施例的第二方面涉及一种信号的传输方法，应用于网络设备，例如网络设备201。
图8是本申请实施例的第二方面的信号的传输方法的一个示意图，如图8所示，该信号的传输方法可以包括：
操作801、发送不位于第一同步光栅上的第一同步信号/物理广播信道块(SS/PBCH block,SSB)；以及
操作802、发送物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
在本申请实施例的第二方面中，在操作802中，网络设备201在第一同步信号/物理广播信道块关联的控制资源集合(CORESET)的资源上发送该物理下行控制信道(PDCCH)。
如图8所示，该方法还包括：
操作803、网络设备201向终端设备202发送测量配置，以便终端设备202可以根据该测量配置获取第一同步信号/物理广播信道块的频域位置。
在本申请实施例的第二方面中，控制资源集合(CORESET)的频域资源中预定资源的频域位置与第一同步信号/物理广播信道块的频域位置的相对位置是第一预定值。
在至少一个实施例中，控制资源集合(CORESET)的频域资源所处的子带与第一同步信号/物理广播信道块的频域位置所处的子带之间的相对位置是第二预定值，其中，控制资源集合(CORESET)的频域资源位于同一子带内，并且控制资源集合(CORESET)的预定资源位于该子带内的预定位置。
在至少一个实施例中，第一同步信号/物理广播信道块可以承载指示信息，该指示信息可以用于指示该控制资源集合的频域位置。
例如，指示信息可以指示：控制资源集合(CORESET)的频域资源或控制资源 集合的频域资源中的第一预定资源所在的子带；和/或，控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第二预定资源在子带中的频域位置。其中，第一预定资源和第二预定资源相同或不同。
在指示信息指示子带时，该指示信息可以指示控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第一预定资源所在的子带的索引。
在指示信息指示子带时，该指示信息也可以指示控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第一预定资源所在的子带与第一同步信号/物理广播信道块所在的子带的相对位置。
在指示信息指示子带时，该指示信息也可以指示所述控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第一预定资源所在的子带对应的同步光栅相关的信息。例如，指示信息指示控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)中的第一预定资源所在的子带中的第二同步光栅的全球同步信道数(GSCN)与第一同步信号/物理广播信道块对应的第二同步光栅的全球同步信道数(GSCN)之间的偏移值。
在指示信息指示频域位置时，该指示信息指示控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位置。
在至少一个实施例中，该相对位置是资源块的数量和/或子载波的数量。
在至少一个实施例中，该参考频率位置是第一SSB的第三预定资源的频域位置，或者是第二SSB的第四预定资源的频域位置，或者是控制资源集合(CORESET)的频域资源或控制资源集合的频域资源中的第二预定资源所在的子带中的第一同步光栅的频率位置。
在至少一个实施例中，该参考频率位置可以是预先设定的频率位置，或者是由网络设备201指示的频率位置。
在至少一个实施例中，网络设备201发送的第一SSB的各物理资源块的频域位置与控制资源集合(CORESET)中的各物理资源块的频域位置可以具有固定的映射关系。
根据本申请实施例的第二方面，在非第一同步光栅上发送第一同步信号/物理广播信道块的情况下，网络设备在与该第一SSB关联的控制资源集合上发送PDCCH，该PDCCH用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理 下行共享信道(PDSCH)，由此，终端设备在接收该PDCCH之后，能够获得该PDCCH调度的PDSCH，并获得PDSCH中承载的剩余最小系统信息/系统信息块1(RMSI/SIB1)。
实施例的第三方面
本申请实施例的第三方面提供一种信号的传输装置，应用于终端设备，例如，终端设备202。该信号的传输装置用于实施实施例的第一方面所述的信号的传输方法。
图9是本申请实施例的第三方面的信号的传输装置的一个示意图，如图9所示，信号的传输装置900包括第一传输单元901。
第一传输单元901可以实施本申请实施例的第一方面所述的信号的传输方法。关于第一传输单元901实施信号的传输方法的说明，可以参考本申请实施例的第一方面中对信号的传输方法的说明。
实施例的第四方面
本申请实施例的第四方面提供一种信号的传输装置，应用于网络设备，例如，网络设备201。该信号的传输装置用于实施实施例的第二方面所述的信号的传输方法。
图10是本申请实施例的第四方面的信号的传输装置的一个示意图，如图10所示，信号的传输装置1000包括第二传输单元1001。
第二传输单元1001可以实施本申请实施例的第二方面所述的信号的传输方法。关于第二传输单元1001实施信号的传输方法的说明，可以参考本申请实施例的第二方面中对信号的传输方法的说明。
实施例的第五方面
本申请实施例的第五方面提供一种终端设备，该终端设备包括如实施例的第三方面所述的信号的传输装置900。
图11是本申请实施例的第五方面的终端设备1100的系统构成的一示意框图。如图11所示，该终端设备1100可以包括处理器1110和存储器1111；存储器1111耦合到处理器1110。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
在一个实施方式中，信号的传输装置900的功能可以被集成到处理器1110中。其中，处理器1110可以被配置为能够实施实施例的第一方面的信号的传输方法。
在另一个实施方式中，信号的传输装置900可以与处理器1110分开配置，例如可以将信号的传输装置900配置为与处理器1110连接的芯片，通过处理器1110的控制来实现信号的传输装置900的功能。
如图11所示，该终端设备1100还可以包括：通信模块1130、输入单元1140、显示器1150、电源1160。值得注意的是，终端设备1100也并不是必须要包括图11中所示的所有部件；此外，终端设备1100还可以包括图11中没有示出的部件，可以参考现有技术。
如图11所示，处理器1110有时也称为控制器或操作控件，可以包括微处理器或其他处理器装置和/或逻辑装置，该处理器1110接收输入并控制终端设备1100的各个部件的操作。
其中，存储器1120，例如可以是缓存器、闪存、硬驱、可移动介质、易失性存储器、非易失性存储器或其它合适装置中的一种或更多种。可储存各种数据，此外还可存储执行有关信息的程序。并且处理器1110可执行该存储器1120存储的该程序，以实现信息存储或处理等。其他部件的功能与现有类似，此处不再赘述。终端设备1100的各部件可以通过专用硬件、固件、软件或其结合来实现，而不偏离本申请的范围。
实施例的第六方面
本申请实施例的第六方面提供一种网络设备，该网络设备包括如实施例的第四方面所述的信号的传输装置1000。
图12是本申请实施例的网络设备的一构成示意图。如图12所示，网络设备1200可以包括：处理器(processor)1210和存储器1220；存储器1220耦合到处理器1210。其中该存储器1220可存储各种数据；此外还存储信息处理的程序1230，并且在处理器1210的控制下执行该程序1230，以接收用户设备发送的各种信息、并且向用户设备发送请求信息。
在一个实施方式中，信号的传输装置1000的功能可以被集成到处理器1210中。其中，处理器1210可以被配置为能够实施本申请实施例的第二方面所述的信号的传 输方法。
在另一个实施方式中，信号的传输装置1000可以与处理器1210分开配置，例如可以将信号的传输装置1000配置为与处理器1210连接的芯片，通过处理器1210的控制来实现信号的传输装置1000的功能。
此外，如图12所示，网络设备1200还可以包括：收发机1240和天线1250等；其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，网络设备1200也并不是必须要包括图12中所示的所有部件；此外，网络设备1200还可以包括图12中没有示出的部件，可以参考现有技术。
实施例的第七方面
本申请实施例的第七方面还提供一种通信系统，包括如实施例的第六方面所述的网络设备以及如实施例的第五方面所述的终端设备。
本申请以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可以对应于各个硬件模块。这些软件模块，可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或 者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改，这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式，还公开下述的附记：
1.一种信号的传输方法，应用于终端设备，该方法包括：
接收第一同步信号/物理广播信道块(SS/PBCH block,SSB)，所述第一同步信号/物理广播信道块不位于第一同步光栅上；以及
接收物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
2.如附记1所述的方法，其中，所述方法还包括：
所述终端设备在接收所述物理下行控制信道之前根据所述第一同步信号/物理广播信道块的频域位置和/或所述第一同步信号/物理广播信道块承载的指示信息确定用于发送所述物理下行控制信道的控制资源集合。
3.如附记2所述的方法，其中，
所述控制资源集合与所述第一SSB的频域位置的关系是预定义的。
4.如附记2或3所述的方法，其中，所述控制资源集合(CORESET)的频域资源中预定资源的频域位置与所述第一同步信号/物理广播信道块的频域位置的相对位置是第一预定值。
5.如附记2或3所述的方法，其中，
所述控制资源集合(CORESET)的频域资源所处的子带与所述第一同步信号/物理广播信道块的频域位置所处的子带之间的相对位置是第二预定值，
其中，所述控制资源集合(CORESET)的频域资源位于同一子带内，并且所述控制资源集合(CORESET)的预定资源位于该子带内的预定位置。
6.如附记5所述的方法，其中，
在不同的子带内，所述控制资源集合(CORESET)的所述预定资源的所述预定位置相同或不同。
7.如附记5或6所述的方法，其中，
在同一子带内，针对不同的子载波间隔，所述控制资源集合(CORESET)的所述预定资源的所述预定位置相同或不同。
8.如附记2所述的方法，其中，
所述指示信息用于指示所述控制资源集合的频域位置。
8a.根据附记2所述的方法，其中，
所述指示信息基于参考频域位置指示所述控制资源集合的频域位置。
9.根据附记8所述的方法，其中，
所述指示信息指示：
所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第一预定资源所在的子带；和/或
所述控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)的频域资源中的第二预定资源的频域位置，
其中，所述第一预定资源和所述第二预定资源相同或不同。
10.如附记9所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带的索引；或者
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带与所述第一同步信号/物理广播信道块的频域位置所在的子带的相对位置；或者
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带中的同步光栅相关的信息。
11.如附记10所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述第一预定资源所在的子带中的第二同步光栅的全球同步信道数(GSCN)与所述第一同步信号/物理广播信道块对应的第二同步光栅的全球同步信道数(GSCN)之间的偏移值。
12.如附记9所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位置。
13.如附记12所述的方法，其中，
所述参考频率位置是预定义的或者由所述网络设备指示的。
14.如附记13所述的方法，其中，
所述参考频率位置是所述第一SSB的第三预定资源的频域位置，或者是第二SSB的第四预定资源的频域位置，或者是所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第二预定资源所在的子带中的第一同步光栅的频率位置。
15.如附记12所述的方法，其中，
所述相对位置是资源块的数量和/或子载波的数量。
16.如附记2所述的方法，其中，
所述第一SSB的各物理资源块的频域位置与所述控制资源集合(CORESET)中的各物理资源块的频域位置具有固定的映射关系。
17.一种信号的传输方法，应用于网络设备，该方法包括：
发送不位于第一同步光栅上的第一同步信号/物理广播信道块(SS/PBCH block,SSB)；以及
发送物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
18.如附记17所述的方法，其中，
在所述第一同步信号/物理广播信道块关联的控制资源集合(CORESET)的资源上发送所述物理下行控制信道(PDCCH)。
19.如附记18所述的方法，其中，所述方法还包括：
所述网络设备向终端设备发送测量配置，所述测量配置指示所述终端设备获取所述第一同步信号/物理广播信道块的频域位置。
20.如附记18所述的方法，其中，
所述控制资源集合(CORESET)的频域资源中预定资源的频域位置与所述第一同步信号/物理广播信道块的频域位置的相对位置是第一预定值。
21.如附记18所述的方法，其中，
所述控制资源集合(CORESET)的频域资源所处的子带与所述第一同步信号/物理广播信道块的频域位置所处的子带之间的相对位置是第二预定值，
其中，所述控制资源集合(CORESET)的频域资源位于同一子带内，并且所述控制资源集合(CORESET)的预定资源位于该子带内的预定位置。
22.如附记21所述的方法，其中，
在不同的子带内，所述控制资源集合(CORESET)的所述预定资源的所述预定位置相同或不同。
23.如附记21或22所述的方法，其中，
在同一子带内，针对不同的子载波间隔，所述控制资源集合(CORESET)的所述预定资源的所述预定位置相同或不同。
24.如附记18所述的方法，其中，
所述第一同步信号/物理广播信道块承载指示信息，所述指示信息用于指示所述控制资源集合的频域位置。
25.如附记18所述的方法，其中，
所述指示信息指示：
所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第一预定资源所在的子带；和/或
所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的第二预定资源在子带中的频域位置，
其中，所述第一预定资源和所述第二预定资源相同或不同。
26.如附记25所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带的索引；或者
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带与所述第一同步信号/物理广播信道块所在的子带的相对位置；或者
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带对应的同步光栅相关的信息。
27.如附记26所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带中的第二同步光栅的全球同步信道数(GSCN)与所述第一同步信号/物理广播信道块对应的第二同步光栅的全球同步信道数(GSCN)之间的偏移值。
28.如附记25所述的方法，其中，
所述指示信息指示所述控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位置。
29.如附记28所述的方法，其中，所述方法还包括：
所述网络设备指示所述参考频率位置。
30.如附记29所述的方法，其中，
所述参考频率位置是所述第一SSB的第三预定资源的频域位置，或者是第二SSB的第四预定资源的频域位置，或者是所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第二预定资源所在的子带中的第一同步光栅的频率位置。
31.如附记28所述的方法，其中，
所述相对位置是资源块的数量和/或子载波的数量。
32.如附记18所述的方法，其中，
所述网络设备发送的所述第一SSB的各物理资源块的频域位置与所述控制资源集合(CORESET)中的各物理资源块的频域位置具有固定的映射关系。

Claims (20)

  1. 一种信号的传输装置，应用于终端设备，该装置包括第一传输单元，所述第一传输单元被配置为：
    接收第一同步信号/物理广播信道块(SS/PBCH block,SSB)，所述第一同步信号/物理广播信道块不位于第一同步光栅上；以及
    接收物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
  2. 如权利要求1所述的装置，其中，所述第一传输单元还被配置为：
    所述终端设备在接收所述物理下行控制信道之前根据所述第一同步信号/物理广播信道块的频域位置和/或所述第一同步信号/物理广播信道块承载的指示信息确定用于发送所述物理下行控制信道的控制资源集合。
  3. 如权利要求2所述的装置，其中，
    所述控制资源集合与所述第一SSB的频域位置的关系是预定义的。
  4. 如权利要求2所述的装置，其中，
    所述控制资源集合(CORESET)的频域资源所处的子带与所述第一同步信号/物理广播信道块的频域位置所处的子带之间的相对位置是第二预定值，
    其中，所述控制资源集合(CORESET)的频域资源位于同一子带内，并且所述控制资源集合(CORESET)的预定资源位于该子带内的预定位置。
  5. 如权利要求2所述的装置，其中，
    所述指示信息用于指示所述控制资源集合的频域位置。
  6. 根据权利要求2所述的装置，其中，
    所述指示信息基于参考频域位置指示所述控制资源集合的频域位置。
  7. 根据权利要求8所述的装置，其中，
    所述指示信息指示：
    所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第一预定资源所在的子带；和/或
    所述控制资源集合(CORESET)的频域资源或控制资源集合(CORESET)的频 域资源中的第二预定资源的频域位置，
    其中，所述第一预定资源和所述第二预定资源相同或不同。
  8. 如权利要求9所述的装置，其中，
    所述指示信息指示所述控制资源集合(CORESET)中的第二预定资源的频域位置与参考频率位置的相对位置。
  9. 如权利要求8所述的装置，其中，
    所述参考频率位置是所述第一SSB的第三预定资源的频域位置，或者是第二SSB的第四预定资源的频域位置，或者是所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第二预定资源所在的子带中的第一同步光栅的频率位置。
  10. 如权利要求8所述的装置，其中，
    所述相对位置是资源块的数量和/或子载波的数量。
  11. 如权利要求9所述的装置，其中，
    所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带的索引；或者
    所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带与所述第一同步信号/物理广播信道块的频域位置所在的子带的相对位置；或者
    所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的所述第一预定资源所在的子带中的同步光栅相关的信息。
  12. 如权利要求10所述的装置，其中，
    所述指示信息指示所述控制资源集合(CORESET)的频域资源或所述第一预定资源所在的子带中的第二同步光栅的全球同步信道数(GSCN)与所述第一同步信号/物理广播信道块对应的第二同步光栅的全球同步信道数(GSCN)之间的偏移值。
  13. 如权利要求2所述的装置，其中，
    所述第一SSB的各物理资源块的频域位置与所述控制资源集合(CORESET)中的各物理资源块的频域位置具有固定的映射关系。
  14. 一种信号的传输装置，应用于网络设备，该装置包括第二传输单元，所述第二传输单元被配置为：
    发送不位于第一同步光栅上的第一同步信号/物理广播信道块(SS/PBCH block,SSB)；以及
    发送物理下行控制信道(PDCCH)，所述物理下行控制信道(PDCCH)用于调度用于承载剩余最小系统信息/系统信息块1(RMSI/SIB1)的物理下行共享信道(PDSCH)。
  15. 如权利要求17所述的装置，其中，
    在所述第一同步信号/物理广播信道块关联的控制资源集合(CORESET)的资源上发送所述物理下行控制信道(PDCCH)。
  16. 如权利要求18所述的装置，其中，
    所述控制资源集合(CORESET)的频域资源所处的子带与所述第一同步信号/物理广播信道块的频域位置所处的子带之间的相对位置是第二预定值，
    其中，所述控制资源集合(CORESET)的频域资源位于同一子带内，并且所述控制资源集合(CORESET)的预定资源位于该子带内的预定位置。
  17. 如权利要求18所述的装置，其中，
    所述第一同步信号/物理广播信道块承载指示信息，所述指示信息用于指示所述控制资源集合的频域位置。
  18. 如权利要求18所述的装置，其中，
    所述指示信息指示：
    所述控制资源集合(CORESET)的频域资源或所述控制资源集合的频域资源中的第一预定资源所在的子带；和/或
    所述控制资源集合(CORESET)的频域资源或所述控制资源集合(CORESET)中的第二预定资源在子带中的频域位置，
    其中，所述第一预定资源和所述第二预定资源相同或不同。
  19. 如权利要求18所述的装置，其中，
    所述网络设备发送的所述第一SSB的各物理资源块的频域位置与所述控制资源集合(CORESET)中的各物理资源块的频域位置具有固定的映射关系。
  20. 一种通信系统，包括：
    终端设备，其具有如权利要求1-13中任一项所述的信号的传输装置；以及
    网络设备，其具有如权利要求14-19中任一项所述的信号的传输装置。
PCT/CN2019/109264 2019-09-30 2019-09-30 信号的传输方法、装置和通信系统 Ceased WO2021062575A1 (zh)

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